SkDraw.cpp revision cfd90d6073baef9841dcb6e7b25d244f06ceeeaa
1ec3ed6a5ebf6f2c406d7bcf94b6bc34fcaeb976eepoger@google.com/* 2ec3ed6a5ebf6f2c406d7bcf94b6bc34fcaeb976eepoger@google.com * Copyright 2006 The Android Open Source Project 3ec3ed6a5ebf6f2c406d7bcf94b6bc34fcaeb976eepoger@google.com * 4ec3ed6a5ebf6f2c406d7bcf94b6bc34fcaeb976eepoger@google.com * Use of this source code is governed by a BSD-style license that can be 5ec3ed6a5ebf6f2c406d7bcf94b6bc34fcaeb976eepoger@google.com * found in the LICENSE file. 6ec3ed6a5ebf6f2c406d7bcf94b6bc34fcaeb976eepoger@google.com */ 7ec3ed6a5ebf6f2c406d7bcf94b6bc34fcaeb976eepoger@google.com 88a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com#include "SkDraw.h" 98a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com#include "SkBlitter.h" 108a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com#include "SkBounder.h" 118a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com#include "SkCanvas.h" 128a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com#include "SkColorPriv.h" 138a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com#include "SkDevice.h" 141c028bd395dc52ca12b99f85f0c297d15a288c2dreed@google.com#include "SkDeviceLooper.h" 152211b623274e24d0025763cfa855c9eb53d5b900bungeman@google.com#include "SkFixed.h" 168a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com#include "SkMaskFilter.h" 178a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com#include "SkPaint.h" 188a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com#include "SkPathEffect.h" 19045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com#include "SkRasterClip.h" 208a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com#include "SkRasterizer.h" 21a8e33a92e27ca1523601226cad83c79a7e00c93bscroggo@google.com#include "SkRRect.h" 228a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com#include "SkScan.h" 238a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com#include "SkShader.h" 2476f9e938df0b5826fd4c80b854ceafaf385cfbe1robertphillips@google.com#include "SkString.h" 258a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com#include "SkStroke.h" 268a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com#include "SkTemplatesPriv.h" 2732e5d97ccf60f859db063ebd6e903c362e625767reed@google.com#include "SkTLazy.h" 288a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com#include "SkUtils.h" 298a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 308a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com#include "SkAutoKern.h" 318a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com#include "SkBitmapProcShader.h" 328a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com#include "SkDrawProcs.h" 33ae57358447bac678e3fc458fa2857a349a6a7081reed@google.com#include "SkMatrixUtils.h" 348a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 35ed43dffbf140cebc0575bed7b4dff1b32430ad21reed@google.combool SkDraw::ShouldDrawTextAsPaths(const SkPaint& paint, const SkMatrix& ctm) { 36ed43dffbf140cebc0575bed7b4dff1b32430ad21reed@google.com // we don't cache hairlines in the cache 37ed43dffbf140cebc0575bed7b4dff1b32430ad21reed@google.com if (SkPaint::kStroke_Style == paint.getStyle() && 38ed43dffbf140cebc0575bed7b4dff1b32430ad21reed@google.com 0 == paint.getStrokeWidth()) { 39ed43dffbf140cebc0575bed7b4dff1b32430ad21reed@google.com return true; 40ed43dffbf140cebc0575bed7b4dff1b32430ad21reed@google.com } 418f6ef4010f6835c5ce9ede180e50a6a58512a81eskia.committer@gmail.com 42ed43dffbf140cebc0575bed7b4dff1b32430ad21reed@google.com // we don't cache perspective 43ed43dffbf140cebc0575bed7b4dff1b32430ad21reed@google.com if (ctm.hasPerspective()) { 44ed43dffbf140cebc0575bed7b4dff1b32430ad21reed@google.com return true; 45ed43dffbf140cebc0575bed7b4dff1b32430ad21reed@google.com } 46ed43dffbf140cebc0575bed7b4dff1b32430ad21reed@google.com 47ed43dffbf140cebc0575bed7b4dff1b32430ad21reed@google.com SkMatrix textM; 48ed43dffbf140cebc0575bed7b4dff1b32430ad21reed@google.com return SkPaint::TooBigToUseCache(ctm, *paint.setTextMatrix(&textM)); 49ed43dffbf140cebc0575bed7b4dff1b32430ad21reed@google.com} 50ed43dffbf140cebc0575bed7b4dff1b32430ad21reed@google.com 518a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com//#define TRACE_BITMAP_DRAWS 528a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 538a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com#define kBlitterStorageLongCount (sizeof(SkBitmapProcShader) >> 2) 548a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 55fd4236ecc1d5eb1bb48ca9dc33df5e9051c3036ereed@google.com/** Helper for allocating small blitters on the stack. 56fd4236ecc1d5eb1bb48ca9dc33df5e9051c3036ereed@google.com */ 5740c2ba27b6e5c6a4b6c073264f8c0a7c86355abereed@google.comclass SkAutoBlitterChoose : SkNoncopyable { 588a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.compublic: 591d6ee0bd4db7f3b676209341214641d9af5a965freed@google.com SkAutoBlitterChoose() { 601d6ee0bd4db7f3b676209341214641d9af5a965freed@google.com fBlitter = NULL; 611d6ee0bd4db7f3b676209341214641d9af5a965freed@google.com } 628a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkAutoBlitterChoose(const SkBitmap& device, const SkMatrix& matrix, 63126f7f5244502c0cbf1e5fec1d2ad7a0f2eb6c34reed@google.com const SkPaint& paint, bool drawCoverage = false) { 648a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com fBlitter = SkBlitter::Choose(device, matrix, paint, 65126f7f5244502c0cbf1e5fec1d2ad7a0f2eb6c34reed@google.com fStorage, sizeof(fStorage), drawCoverage); 668a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 67fbfcd5602128ec010c82cb733c9cdc0a3254f9f3rmistry@google.com 68e61a86cfa00ea393ecc4a71fca94e1d476a37ecccommit-bot@chromium.org ~SkAutoBlitterChoose() { 69e61a86cfa00ea393ecc4a71fca94e1d476a37ecccommit-bot@chromium.org if ((void*)fBlitter == (void*)fStorage) { 70e61a86cfa00ea393ecc4a71fca94e1d476a37ecccommit-bot@chromium.org fBlitter->~SkBlitter(); 71e61a86cfa00ea393ecc4a71fca94e1d476a37ecccommit-bot@chromium.org } else { 72e61a86cfa00ea393ecc4a71fca94e1d476a37ecccommit-bot@chromium.org SkDELETE(fBlitter); 73e61a86cfa00ea393ecc4a71fca94e1d476a37ecccommit-bot@chromium.org } 74e61a86cfa00ea393ecc4a71fca94e1d476a37ecccommit-bot@chromium.org } 758a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 768a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkBlitter* operator->() { return fBlitter; } 778a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkBlitter* get() const { return fBlitter; } 788a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 791d6ee0bd4db7f3b676209341214641d9af5a965freed@google.com void choose(const SkBitmap& device, const SkMatrix& matrix, 801d6ee0bd4db7f3b676209341214641d9af5a965freed@google.com const SkPaint& paint) { 811d6ee0bd4db7f3b676209341214641d9af5a965freed@google.com SkASSERT(!fBlitter); 821d6ee0bd4db7f3b676209341214641d9af5a965freed@google.com fBlitter = SkBlitter::Choose(device, matrix, paint, 831d6ee0bd4db7f3b676209341214641d9af5a965freed@google.com fStorage, sizeof(fStorage)); 841d6ee0bd4db7f3b676209341214641d9af5a965freed@google.com } 851d6ee0bd4db7f3b676209341214641d9af5a965freed@google.com 868a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.comprivate: 878a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkBlitter* fBlitter; 888a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com uint32_t fStorage[kBlitterStorageLongCount]; 898a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com}; 90e61a86cfa00ea393ecc4a71fca94e1d476a37ecccommit-bot@chromium.org#define SkAutoBlitterChoose(...) SK_REQUIRE_LOCAL_VAR(SkAutoBlitterChoose) 918a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 9240c2ba27b6e5c6a4b6c073264f8c0a7c86355abereed@google.com/** 9340c2ba27b6e5c6a4b6c073264f8c0a7c86355abereed@google.com * Since we are providing the storage for the shader (to avoid the perf cost 9440c2ba27b6e5c6a4b6c073264f8c0a7c86355abereed@google.com * of calling new) we insist that in our destructor we can account for all 9540c2ba27b6e5c6a4b6c073264f8c0a7c86355abereed@google.com * owners of the shader. 9640c2ba27b6e5c6a4b6c073264f8c0a7c86355abereed@google.com */ 9740c2ba27b6e5c6a4b6c073264f8c0a7c86355abereed@google.comclass SkAutoBitmapShaderInstall : SkNoncopyable { 988a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.compublic: 9940c2ba27b6e5c6a4b6c073264f8c0a7c86355abereed@google.com SkAutoBitmapShaderInstall(const SkBitmap& src, const SkPaint& paint) 10040c2ba27b6e5c6a4b6c073264f8c0a7c86355abereed@google.com : fPaint(paint) /* makes a copy of the paint */ { 10140c2ba27b6e5c6a4b6c073264f8c0a7c86355abereed@google.com fPaint.setShader(SkShader::CreateBitmapShader(src, 1028a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkShader::kClamp_TileMode, SkShader::kClamp_TileMode, 1038a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com fStorage, sizeof(fStorage))); 10440c2ba27b6e5c6a4b6c073264f8c0a7c86355abereed@google.com // we deliberately left the shader with an owner-count of 2 10540c2ba27b6e5c6a4b6c073264f8c0a7c86355abereed@google.com SkASSERT(2 == fPaint.getShader()->getRefCnt()); 1068a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 10782065d667f64e232bcde2ad849756a6096fcbe6freed@google.com 1088a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com ~SkAutoBitmapShaderInstall() { 10940c2ba27b6e5c6a4b6c073264f8c0a7c86355abereed@google.com SkShader* shader = fPaint.getShader(); 11040c2ba27b6e5c6a4b6c073264f8c0a7c86355abereed@google.com // since we manually destroy shader, we insist that owners == 2 11140c2ba27b6e5c6a4b6c073264f8c0a7c86355abereed@google.com SkASSERT(2 == shader->getRefCnt()); 1128a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 11340c2ba27b6e5c6a4b6c073264f8c0a7c86355abereed@google.com fPaint.setShader(NULL); // unref the shader by 1 1148a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 11540c2ba27b6e5c6a4b6c073264f8c0a7c86355abereed@google.com // now destroy to take care of the 2nd owner-count 1168a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com if ((void*)shader == (void*)fStorage) { 1178a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com shader->~SkShader(); 1188a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } else { 1198a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkDELETE(shader); 1208a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 1218a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 12282065d667f64e232bcde2ad849756a6096fcbe6freed@google.com 12340c2ba27b6e5c6a4b6c073264f8c0a7c86355abereed@google.com // return the new paint that has the shader applied 12440c2ba27b6e5c6a4b6c073264f8c0a7c86355abereed@google.com const SkPaint& paintWithShader() const { return fPaint; } 12582065d667f64e232bcde2ad849756a6096fcbe6freed@google.com 1268a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.comprivate: 12740c2ba27b6e5c6a4b6c073264f8c0a7c86355abereed@google.com SkPaint fPaint; // copy of caller's paint (which we then modify) 12840c2ba27b6e5c6a4b6c073264f8c0a7c86355abereed@google.com uint32_t fStorage[kBlitterStorageLongCount]; 1298a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com}; 130e61a86cfa00ea393ecc4a71fca94e1d476a37ecccommit-bot@chromium.org#define SkAutoBitmapShaderInstall(...) SK_REQUIRE_LOCAL_VAR(SkAutoBitmapShaderInstall) 1318a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 1328a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com/////////////////////////////////////////////////////////////////////////////// 1338a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 134f2b98d67dcb6fcb3120feede9c72016fc7b3ead8reed@android.comSkDraw::SkDraw() { 135f2b98d67dcb6fcb3120feede9c72016fc7b3ead8reed@android.com sk_bzero(this, sizeof(*this)); 136f2b98d67dcb6fcb3120feede9c72016fc7b3ead8reed@android.com} 137f2b98d67dcb6fcb3120feede9c72016fc7b3ead8reed@android.com 1388a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.comSkDraw::SkDraw(const SkDraw& src) { 1398a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com memcpy(this, &src, sizeof(*this)); 1408a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com} 1418a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 1424bbdeac58cc928dc66296bde3bd06e78070d96b7reed@google.combool SkDraw::computeConservativeLocalClipBounds(SkRect* localBounds) const { 1434bbdeac58cc928dc66296bde3bd06e78070d96b7reed@google.com if (fRC->isEmpty()) { 1444bbdeac58cc928dc66296bde3bd06e78070d96b7reed@google.com return false; 1454bbdeac58cc928dc66296bde3bd06e78070d96b7reed@google.com } 1464bbdeac58cc928dc66296bde3bd06e78070d96b7reed@google.com 1474bbdeac58cc928dc66296bde3bd06e78070d96b7reed@google.com SkMatrix inverse; 1484bbdeac58cc928dc66296bde3bd06e78070d96b7reed@google.com if (!fMatrix->invert(&inverse)) { 1494bbdeac58cc928dc66296bde3bd06e78070d96b7reed@google.com return false; 1504bbdeac58cc928dc66296bde3bd06e78070d96b7reed@google.com } 1514bbdeac58cc928dc66296bde3bd06e78070d96b7reed@google.com 1524bbdeac58cc928dc66296bde3bd06e78070d96b7reed@google.com SkIRect devBounds = fRC->getBounds(); 1534bbdeac58cc928dc66296bde3bd06e78070d96b7reed@google.com // outset to have slop for antialasing and hairlines 1544bbdeac58cc928dc66296bde3bd06e78070d96b7reed@google.com devBounds.outset(1, 1); 1554bbdeac58cc928dc66296bde3bd06e78070d96b7reed@google.com inverse.mapRect(localBounds, SkRect::Make(devBounds)); 1564bbdeac58cc928dc66296bde3bd06e78070d96b7reed@google.com return true; 1574bbdeac58cc928dc66296bde3bd06e78070d96b7reed@google.com} 1584bbdeac58cc928dc66296bde3bd06e78070d96b7reed@google.com 1598a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com/////////////////////////////////////////////////////////////////////////////// 1608a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 1618a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.comtypedef void (*BitmapXferProc)(void* pixels, size_t bytes, uint32_t data); 1628a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 1638a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.comstatic void D_Clear_BitmapXferProc(void* pixels, size_t bytes, uint32_t) { 1644516f4786f5dda1b86a8f825b9e8e910d9c2363creed@android.com sk_bzero(pixels, bytes); 1658a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com} 1668a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 1678a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.comstatic void D_Dst_BitmapXferProc(void*, size_t, uint32_t data) {} 1688a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 1698a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.comstatic void D32_Src_BitmapXferProc(void* pixels, size_t bytes, uint32_t data) { 1708a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com sk_memset32((uint32_t*)pixels, data, bytes >> 2); 1718a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com} 1728a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 1738a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.comstatic void D16_Src_BitmapXferProc(void* pixels, size_t bytes, uint32_t data) { 1748a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com sk_memset16((uint16_t*)pixels, data, bytes >> 1); 1758a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com} 1768a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 1778a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.comstatic void DA8_Src_BitmapXferProc(void* pixels, size_t bytes, uint32_t data) { 1788a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com memset(pixels, data, bytes); 1798a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com} 1808a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 1818a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.comstatic BitmapXferProc ChooseBitmapXferProc(const SkBitmap& bitmap, 1828a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com const SkPaint& paint, 1838a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com uint32_t* data) { 1848a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com // todo: we can apply colorfilter up front if no shader, so we wouldn't 1858a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com // need to abort this fastpath 1868a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com if (paint.getShader() || paint.getColorFilter()) { 1878a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com return NULL; 1888a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 1898a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 190845fdaca174f4675e9acc164b510e3a5ffa9053creed@android.com SkXfermode::Mode mode; 191be2aa2aa1f8bf73d974bdd9438fc741bbf0cfbe6mike@reedtribe.org if (!SkXfermode::AsMode(paint.getXfermode(), &mode)) { 1928a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com return NULL; 1938a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 194a76de3d1a92134c3e95ad7fce99234f92fa48268reed@google.com 1958a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkColor color = paint.getColor(); 196a76de3d1a92134c3e95ad7fce99234f92fa48268reed@google.com 1978a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com // collaps modes based on color... 198845fdaca174f4675e9acc164b510e3a5ffa9053creed@android.com if (SkXfermode::kSrcOver_Mode == mode) { 1998a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com unsigned alpha = SkColorGetA(color); 2008a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com if (0 == alpha) { 201845fdaca174f4675e9acc164b510e3a5ffa9053creed@android.com mode = SkXfermode::kDst_Mode; 2028a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } else if (0xFF == alpha) { 203845fdaca174f4675e9acc164b510e3a5ffa9053creed@android.com mode = SkXfermode::kSrc_Mode; 2048a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 2058a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 206a76de3d1a92134c3e95ad7fce99234f92fa48268reed@google.com 2078a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com switch (mode) { 208845fdaca174f4675e9acc164b510e3a5ffa9053creed@android.com case SkXfermode::kClear_Mode: 2098a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com// SkDebugf("--- D_Clear_BitmapXferProc\n"); 2108a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com return D_Clear_BitmapXferProc; // ignore data 211845fdaca174f4675e9acc164b510e3a5ffa9053creed@android.com case SkXfermode::kDst_Mode: 2128a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com// SkDebugf("--- D_Dst_BitmapXferProc\n"); 2138a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com return D_Dst_BitmapXferProc; // ignore data 214845fdaca174f4675e9acc164b510e3a5ffa9053creed@android.com case SkXfermode::kSrc_Mode: { 2158a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com /* 216a76de3d1a92134c3e95ad7fce99234f92fa48268reed@google.com should I worry about dithering for the lower depths? 2178a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com */ 2188a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkPMColor pmc = SkPreMultiplyColor(color); 2198a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com switch (bitmap.config()) { 2208a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com case SkBitmap::kARGB_8888_Config: 2218a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com if (data) { 2228a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com *data = pmc; 2238a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 2248a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com// SkDebugf("--- D32_Src_BitmapXferProc\n"); 2258a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com return D32_Src_BitmapXferProc; 2268a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com case SkBitmap::kRGB_565_Config: 2278a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com if (data) { 2288a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com *data = SkPixel32ToPixel16(pmc); 2298a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 2308a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com// SkDebugf("--- D16_Src_BitmapXferProc\n"); 2318a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com return D16_Src_BitmapXferProc; 2328a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com case SkBitmap::kA8_Config: 2338a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com if (data) { 2348a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com *data = SkGetPackedA32(pmc); 2358a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 2368a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com// SkDebugf("--- DA8_Src_BitmapXferProc\n"); 2378a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com return DA8_Src_BitmapXferProc; 2388a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com default: 2398a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com break; 2408a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 2418a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com break; 2428a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 2438a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com default: 2448a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com break; 2458a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 2468a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com return NULL; 2478a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com} 2488a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 2498a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.comstatic void CallBitmapXferProc(const SkBitmap& bitmap, const SkIRect& rect, 2508a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com BitmapXferProc proc, uint32_t procData) { 2518a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com int shiftPerPixel; 2528a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com switch (bitmap.config()) { 2538a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com case SkBitmap::kARGB_8888_Config: 2548a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com shiftPerPixel = 2; 2558a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com break; 2568a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com case SkBitmap::kRGB_565_Config: 2578a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com shiftPerPixel = 1; 2588a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com break; 2598a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com case SkBitmap::kA8_Config: 2608a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com shiftPerPixel = 0; 2618a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com break; 2628a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com default: 2630c00f21fee3f5cfa3aa7e5d46ff94cb8cf340451tomhudson@google.com SkDEBUGFAIL("Can't use xferproc on this config"); 2648a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com return; 2658a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 2668a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 2678a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com uint8_t* pixels = (uint8_t*)bitmap.getPixels(); 2688a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkASSERT(pixels); 2698a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com const size_t rowBytes = bitmap.rowBytes(); 2708a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com const int widthBytes = rect.width() << shiftPerPixel; 2718a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 2728a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com // skip down to the first scanline and X position 2738a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com pixels += rect.fTop * rowBytes + (rect.fLeft << shiftPerPixel); 2748a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com for (int scans = rect.height() - 1; scans >= 0; --scans) { 2758a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com proc(pixels, widthBytes, procData); 2768a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com pixels += rowBytes; 2778a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 2788a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com} 2798a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 2808a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.comvoid SkDraw::drawPaint(const SkPaint& paint) const { 281f2b98d67dcb6fcb3120feede9c72016fc7b3ead8reed@android.com SkDEBUGCODE(this->validate();) 2828a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 283045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com if (fRC->isEmpty()) { 2848a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com return; 2858a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 2868a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 2878a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkIRect devRect; 2888a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com devRect.set(0, 0, fBitmap->width(), fBitmap->height()); 2898a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com if (fBounder && !fBounder->doIRect(devRect)) { 2908a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com return; 2918a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 292a76de3d1a92134c3e95ad7fce99234f92fa48268reed@google.com 293045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com if (fRC->isBW()) { 294045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com /* If we don't have a shader (i.e. we're just a solid color) we may 295045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com be faster to operate directly on the device bitmap, rather than invoking 296045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com a blitter. Esp. true for xfermodes, which require a colorshader to be 297045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com present, which is just redundant work. Since we're drawing everywhere 298045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com in the clip, we don't have to worry about antialiasing. 299045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com */ 300045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com uint32_t procData = 0; // to avoid the warning 301045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com BitmapXferProc proc = ChooseBitmapXferProc(*fBitmap, paint, &procData); 302045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com if (proc) { 303045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com if (D_Dst_BitmapXferProc == proc) { // nothing to do 304045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com return; 305045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com } 306a76de3d1a92134c3e95ad7fce99234f92fa48268reed@google.com 307045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com SkRegion::Iterator iter(fRC->bwRgn()); 308045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com while (!iter.done()) { 309045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com CallBitmapXferProc(*fBitmap, iter.rect(), proc, procData); 310045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com iter.next(); 311045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com } 312045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com return; 3138a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 3148a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 315045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com 316045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com // normal case: use a blitter 317045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com SkAutoBlitterChoose blitter(*fBitmap, *fMatrix, paint); 318045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com SkScan::FillIRect(devRect, *fRC, blitter.get()); 3198a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com} 3208a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 3218a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com/////////////////////////////////////////////////////////////////////////////// 3228a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 3238a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.comstruct PtProcRec { 3248a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkCanvas::PointMode fMode; 3258a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com const SkPaint* fPaint; 3268a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com const SkRegion* fClip; 327045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com const SkRasterClip* fRC; 328a76de3d1a92134c3e95ad7fce99234f92fa48268reed@google.com 3298a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com // computed values 3308a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkFixed fRadius; 331a76de3d1a92134c3e95ad7fce99234f92fa48268reed@google.com 3328a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com typedef void (*Proc)(const PtProcRec&, const SkPoint devPts[], int count, 3338a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkBlitter*); 3348a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 3358a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com bool init(SkCanvas::PointMode, const SkPaint&, const SkMatrix* matrix, 336045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com const SkRasterClip*); 337045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com Proc chooseProc(SkBlitter** blitter); 338045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com 339045e62d715f5ee9b03deb5af3c750f8318096179reed@google.comprivate: 340045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com SkAAClipBlitterWrapper fWrapper; 3418a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com}; 3428a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 3438a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.comstatic void bw_pt_rect_hair_proc(const PtProcRec& rec, const SkPoint devPts[], 3448a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com int count, SkBlitter* blitter) { 3458a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkASSERT(rec.fClip->isRect()); 3468a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com const SkIRect& r = rec.fClip->getBounds(); 347a76de3d1a92134c3e95ad7fce99234f92fa48268reed@google.com 3488a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com for (int i = 0; i < count; i++) { 3492d47a21b27035798d53de4d5cb8ac7c03534ab27reed@google.com int x = SkScalarFloorToInt(devPts[i].fX); 3502d47a21b27035798d53de4d5cb8ac7c03534ab27reed@google.com int y = SkScalarFloorToInt(devPts[i].fY); 3518a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com if (r.contains(x, y)) { 3528a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com blitter->blitH(x, y, 1); 3538a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 3548a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 3558a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com} 3568a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 3578a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.comstatic void bw_pt_rect_16_hair_proc(const PtProcRec& rec, 3588a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com const SkPoint devPts[], int count, 3598a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkBlitter* blitter) { 360045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com SkASSERT(rec.fRC->isRect()); 361045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com const SkIRect& r = rec.fRC->getBounds(); 3628a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com uint32_t value; 3638a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com const SkBitmap* bitmap = blitter->justAnOpaqueColor(&value); 3648a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkASSERT(bitmap); 365c3d7d90973528527131c72549b10c2a21300e0acskia.committer@gmail.com 3668a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com uint16_t* addr = bitmap->getAddr16(0, 0); 367e5f48243bdbed2662be7a31be0888abc273b09e8scroggo@google.com size_t rb = bitmap->rowBytes(); 368c3d7d90973528527131c72549b10c2a21300e0acskia.committer@gmail.com 3698a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com for (int i = 0; i < count; i++) { 3702d47a21b27035798d53de4d5cb8ac7c03534ab27reed@google.com int x = SkScalarFloorToInt(devPts[i].fX); 3712d47a21b27035798d53de4d5cb8ac7c03534ab27reed@google.com int y = SkScalarFloorToInt(devPts[i].fY); 3728a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com if (r.contains(x, y)) { 3738a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com ((uint16_t*)((char*)addr + y * rb))[x] = SkToU16(value); 3748a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 3758a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 3768a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com} 3778a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 3782d47a21b27035798d53de4d5cb8ac7c03534ab27reed@google.comstatic void bw_pt_rect_32_hair_proc(const PtProcRec& rec, 3792d47a21b27035798d53de4d5cb8ac7c03534ab27reed@google.com const SkPoint devPts[], int count, 3802d47a21b27035798d53de4d5cb8ac7c03534ab27reed@google.com SkBlitter* blitter) { 3812d47a21b27035798d53de4d5cb8ac7c03534ab27reed@google.com SkASSERT(rec.fRC->isRect()); 3822d47a21b27035798d53de4d5cb8ac7c03534ab27reed@google.com const SkIRect& r = rec.fRC->getBounds(); 3832d47a21b27035798d53de4d5cb8ac7c03534ab27reed@google.com uint32_t value; 3842d47a21b27035798d53de4d5cb8ac7c03534ab27reed@google.com const SkBitmap* bitmap = blitter->justAnOpaqueColor(&value); 3852d47a21b27035798d53de4d5cb8ac7c03534ab27reed@google.com SkASSERT(bitmap); 386c3d7d90973528527131c72549b10c2a21300e0acskia.committer@gmail.com 3872d47a21b27035798d53de4d5cb8ac7c03534ab27reed@google.com SkPMColor* addr = bitmap->getAddr32(0, 0); 388e5f48243bdbed2662be7a31be0888abc273b09e8scroggo@google.com size_t rb = bitmap->rowBytes(); 389c3d7d90973528527131c72549b10c2a21300e0acskia.committer@gmail.com 3902d47a21b27035798d53de4d5cb8ac7c03534ab27reed@google.com for (int i = 0; i < count; i++) { 3912d47a21b27035798d53de4d5cb8ac7c03534ab27reed@google.com int x = SkScalarFloorToInt(devPts[i].fX); 3922d47a21b27035798d53de4d5cb8ac7c03534ab27reed@google.com int y = SkScalarFloorToInt(devPts[i].fY); 3932d47a21b27035798d53de4d5cb8ac7c03534ab27reed@google.com if (r.contains(x, y)) { 3942d47a21b27035798d53de4d5cb8ac7c03534ab27reed@google.com ((SkPMColor*)((char*)addr + y * rb))[x] = value; 3952d47a21b27035798d53de4d5cb8ac7c03534ab27reed@google.com } 3962d47a21b27035798d53de4d5cb8ac7c03534ab27reed@google.com } 3972d47a21b27035798d53de4d5cb8ac7c03534ab27reed@google.com} 3982d47a21b27035798d53de4d5cb8ac7c03534ab27reed@google.com 3998a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.comstatic void bw_pt_hair_proc(const PtProcRec& rec, const SkPoint devPts[], 4008a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com int count, SkBlitter* blitter) { 4018a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com for (int i = 0; i < count; i++) { 4028a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com int x = SkScalarFloor(devPts[i].fX); 4038a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com int y = SkScalarFloor(devPts[i].fY); 4048a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com if (rec.fClip->contains(x, y)) { 4058a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com blitter->blitH(x, y, 1); 4068a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 4078a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 4088a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com} 4098a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 4108a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.comstatic void bw_line_hair_proc(const PtProcRec& rec, const SkPoint devPts[], 4118a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com int count, SkBlitter* blitter) { 4128a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com for (int i = 0; i < count; i += 2) { 413045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com SkScan::HairLine(devPts[i], devPts[i+1], *rec.fRC, blitter); 4148a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 4158a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com} 4168a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 4178a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.comstatic void bw_poly_hair_proc(const PtProcRec& rec, const SkPoint devPts[], 4188a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com int count, SkBlitter* blitter) { 4198a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com for (int i = 0; i < count - 1; i++) { 420045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com SkScan::HairLine(devPts[i], devPts[i+1], *rec.fRC, blitter); 4218a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 4228a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com} 4238a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 4248a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com// aa versions 4258a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 4268a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.comstatic void aa_line_hair_proc(const PtProcRec& rec, const SkPoint devPts[], 4278a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com int count, SkBlitter* blitter) { 4288a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com for (int i = 0; i < count; i += 2) { 429045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com SkScan::AntiHairLine(devPts[i], devPts[i+1], *rec.fRC, blitter); 4308a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 4318a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com} 4328a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 4338a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.comstatic void aa_poly_hair_proc(const PtProcRec& rec, const SkPoint devPts[], 4348a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com int count, SkBlitter* blitter) { 4358a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com for (int i = 0; i < count - 1; i++) { 436045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com SkScan::AntiHairLine(devPts[i], devPts[i+1], *rec.fRC, blitter); 4378a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 4388a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com} 4398a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 4408a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com// square procs (strokeWidth > 0 but matrix is square-scale (sx == sy) 4418a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 4428a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.comstatic void bw_square_proc(const PtProcRec& rec, const SkPoint devPts[], 4438a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com int count, SkBlitter* blitter) { 4448a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com const SkFixed radius = rec.fRadius; 4458a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com for (int i = 0; i < count; i++) { 4468a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkFixed x = SkScalarToFixed(devPts[i].fX); 4478a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkFixed y = SkScalarToFixed(devPts[i].fY); 448c3d7d90973528527131c72549b10c2a21300e0acskia.committer@gmail.com 4498a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkXRect r; 4508a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com r.fLeft = x - radius; 4518a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com r.fTop = y - radius; 4528a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com r.fRight = x + radius; 4538a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com r.fBottom = y + radius; 454c3d7d90973528527131c72549b10c2a21300e0acskia.committer@gmail.com 455045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com SkScan::FillXRect(r, *rec.fRC, blitter); 4568a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 4578a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com} 4588a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 4598a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.comstatic void aa_square_proc(const PtProcRec& rec, const SkPoint devPts[], 4608a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com int count, SkBlitter* blitter) { 4618a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com const SkFixed radius = rec.fRadius; 4628a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com for (int i = 0; i < count; i++) { 4638a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkFixed x = SkScalarToFixed(devPts[i].fX); 4648a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkFixed y = SkScalarToFixed(devPts[i].fY); 465a76de3d1a92134c3e95ad7fce99234f92fa48268reed@google.com 4668a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkXRect r; 4678a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com r.fLeft = x - radius; 4688a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com r.fTop = y - radius; 4698a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com r.fRight = x + radius; 4708a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com r.fBottom = y + radius; 471a76de3d1a92134c3e95ad7fce99234f92fa48268reed@google.com 472045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com SkScan::AntiFillXRect(r, *rec.fRC, blitter); 4738a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 4748a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com} 4758a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 476b4f404ac4195e5b1f49e49c591bd69f98b246f9breed@android.com// If this guy returns true, then chooseProc() must return a valid proc 4778a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.combool PtProcRec::init(SkCanvas::PointMode mode, const SkPaint& paint, 478045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com const SkMatrix* matrix, const SkRasterClip* rc) { 4798a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com if (paint.getPathEffect()) { 4808a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com return false; 4818a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 4828a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkScalar width = paint.getStrokeWidth(); 4838a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com if (0 == width) { 4848a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com fMode = mode; 4858a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com fPaint = &paint; 486045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com fClip = NULL; 487045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com fRC = rc; 4882d47a21b27035798d53de4d5cb8ac7c03534ab27reed@google.com fRadius = SK_FixedHalf; 4898a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com return true; 4908a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 491b4f404ac4195e5b1f49e49c591bd69f98b246f9breed@android.com if (paint.getStrokeCap() != SkPaint::kRound_Cap && 492b4f404ac4195e5b1f49e49c591bd69f98b246f9breed@android.com matrix->rectStaysRect() && SkCanvas::kPoints_PointMode == mode) { 4938a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkScalar sx = matrix->get(SkMatrix::kMScaleX); 4948a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkScalar sy = matrix->get(SkMatrix::kMScaleY); 4958a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com if (SkScalarNearlyZero(sx - sy)) { 4968a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com if (sx < 0) { 4978a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com sx = -sx; 4988a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 4998a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 5008a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com fMode = mode; 5018a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com fPaint = &paint; 502045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com fClip = NULL; 503045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com fRC = rc; 5048a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com fRadius = SkScalarToFixed(SkScalarMul(width, sx)) >> 1; 5058a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com return true; 5068a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 5078a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 5088a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com return false; 5098a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com} 5108a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 511045e62d715f5ee9b03deb5af3c750f8318096179reed@google.comPtProcRec::Proc PtProcRec::chooseProc(SkBlitter** blitterPtr) { 512b4f404ac4195e5b1f49e49c591bd69f98b246f9breed@android.com Proc proc = NULL; 513a76de3d1a92134c3e95ad7fce99234f92fa48268reed@google.com 514045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com SkBlitter* blitter = *blitterPtr; 515045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com if (fRC->isBW()) { 516045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com fClip = &fRC->bwRgn(); 517045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com } else { 518045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com fWrapper.init(*fRC, blitter); 519045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com fClip = &fWrapper.getRgn(); 520045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com blitter = fWrapper.getBlitter(); 521045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com *blitterPtr = blitter; 522045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com } 523045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com 5248a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com // for our arrays 5258a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkASSERT(0 == SkCanvas::kPoints_PointMode); 5268a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkASSERT(1 == SkCanvas::kLines_PointMode); 5278a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkASSERT(2 == SkCanvas::kPolygon_PointMode); 5288a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkASSERT((unsigned)fMode <= (unsigned)SkCanvas::kPolygon_PointMode); 5298a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 5302d47a21b27035798d53de4d5cb8ac7c03534ab27reed@google.com if (fPaint->isAntiAlias()) { 5312d47a21b27035798d53de4d5cb8ac7c03534ab27reed@google.com if (0 == fPaint->getStrokeWidth()) { 5328a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com static const Proc gAAProcs[] = { 5338a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com aa_square_proc, aa_line_hair_proc, aa_poly_hair_proc 5348a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com }; 5358a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com proc = gAAProcs[fMode]; 5362d47a21b27035798d53de4d5cb8ac7c03534ab27reed@google.com } else if (fPaint->getStrokeCap() != SkPaint::kRound_Cap) { 5372d47a21b27035798d53de4d5cb8ac7c03534ab27reed@google.com SkASSERT(SkCanvas::kPoints_PointMode == fMode); 5382d47a21b27035798d53de4d5cb8ac7c03534ab27reed@google.com proc = aa_square_proc; 5392d47a21b27035798d53de4d5cb8ac7c03534ab27reed@google.com } 5402d47a21b27035798d53de4d5cb8ac7c03534ab27reed@google.com } else { // BW 5412d47a21b27035798d53de4d5cb8ac7c03534ab27reed@google.com if (fRadius <= SK_FixedHalf) { // small radii and hairline 5428a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com if (SkCanvas::kPoints_PointMode == fMode && fClip->isRect()) { 5438a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com uint32_t value; 5448a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com const SkBitmap* bm = blitter->justAnOpaqueColor(&value); 5452d47a21b27035798d53de4d5cb8ac7c03534ab27reed@google.com if (bm && SkBitmap::kRGB_565_Config == bm->config()) { 5468a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com proc = bw_pt_rect_16_hair_proc; 5472d47a21b27035798d53de4d5cb8ac7c03534ab27reed@google.com } else if (bm && SkBitmap::kARGB_8888_Config == bm->config()) { 5482d47a21b27035798d53de4d5cb8ac7c03534ab27reed@google.com proc = bw_pt_rect_32_hair_proc; 5498a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } else { 5508a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com proc = bw_pt_rect_hair_proc; 5518a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 5528a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } else { 5538a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com static Proc gBWProcs[] = { 5548a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com bw_pt_hair_proc, bw_line_hair_proc, bw_poly_hair_proc 5558a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com }; 5568a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com proc = gBWProcs[fMode]; 5578a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 5588a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } else { 5598a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com proc = bw_square_proc; 5608a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 5618a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 5628a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com return proc; 5638a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com} 5648a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 5658a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.comstatic bool bounder_points(SkBounder* bounder, SkCanvas::PointMode mode, 5668a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com size_t count, const SkPoint pts[], 5678a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com const SkPaint& paint, const SkMatrix& matrix) { 5688a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkIRect ibounds; 5698a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkRect bounds; 5708a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkScalar inset = paint.getStrokeWidth(); 5718a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 5728a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com bounds.set(pts, count); 5738a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com bounds.inset(-inset, -inset); 5748a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com matrix.mapRect(&bounds); 5758a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 5768a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com bounds.roundOut(&ibounds); 5778a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com return bounder->doIRect(ibounds); 5788a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com} 5798a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 5808a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com// each of these costs 8-bytes of stack space, so don't make it too large 5818a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com// must be even for lines/polygon to work 5828a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com#define MAX_DEV_PTS 32 5838a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 5848a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.comvoid SkDraw::drawPoints(SkCanvas::PointMode mode, size_t count, 585f2b98d67dcb6fcb3120feede9c72016fc7b3ead8reed@android.com const SkPoint pts[], const SkPaint& paint, 586f2b98d67dcb6fcb3120feede9c72016fc7b3ead8reed@android.com bool forceUseDevice) const { 5878a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com // if we're in lines mode, force count to be even 5888a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com if (SkCanvas::kLines_PointMode == mode) { 5898a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com count &= ~(size_t)1; 5908a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 5918a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 5928a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com if ((long)count <= 0) { 5938a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com return; 5948a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 595a76de3d1a92134c3e95ad7fce99234f92fa48268reed@google.com 5968a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkASSERT(pts != NULL); 597f2b98d67dcb6fcb3120feede9c72016fc7b3ead8reed@android.com SkDEBUGCODE(this->validate();) 598a76de3d1a92134c3e95ad7fce99234f92fa48268reed@google.com 5998a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com // nothing to draw 600045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com if (fRC->isEmpty()) { 6018a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com return; 6028a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 6038a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 604fd4236ecc1d5eb1bb48ca9dc33df5e9051c3036ereed@google.com if (fBounder) { 605fd4236ecc1d5eb1bb48ca9dc33df5e9051c3036ereed@google.com if (!bounder_points(fBounder, mode, count, pts, paint, *fMatrix)) { 606fd4236ecc1d5eb1bb48ca9dc33df5e9051c3036ereed@google.com return; 607fd4236ecc1d5eb1bb48ca9dc33df5e9051c3036ereed@google.com } 608fbfcd5602128ec010c82cb733c9cdc0a3254f9f3rmistry@google.com 609fd4236ecc1d5eb1bb48ca9dc33df5e9051c3036ereed@google.com // clear the bounder and call this again, so we don't invoke the bounder 610fd4236ecc1d5eb1bb48ca9dc33df5e9051c3036ereed@google.com // later if we happen to call ourselves for drawRect, drawPath, etc. 611fd4236ecc1d5eb1bb48ca9dc33df5e9051c3036ereed@google.com SkDraw noBounder(*this); 612fd4236ecc1d5eb1bb48ca9dc33df5e9051c3036ereed@google.com noBounder.fBounder = NULL; 613fd4236ecc1d5eb1bb48ca9dc33df5e9051c3036ereed@google.com noBounder.drawPoints(mode, count, pts, paint, forceUseDevice); 614fd4236ecc1d5eb1bb48ca9dc33df5e9051c3036ereed@google.com return; 615fd4236ecc1d5eb1bb48ca9dc33df5e9051c3036ereed@google.com } 616fbfcd5602128ec010c82cb733c9cdc0a3254f9f3rmistry@google.com 6178a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com PtProcRec rec; 618045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com if (!forceUseDevice && rec.init(mode, paint, fMatrix, fRC)) { 6198a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkAutoBlitterChoose blitter(*fBitmap, *fMatrix, paint); 6208a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 6218a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkPoint devPts[MAX_DEV_PTS]; 6228a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com const SkMatrix* matrix = fMatrix; 6238a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkBlitter* bltr = blitter.get(); 624045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com PtProcRec::Proc proc = rec.chooseProc(&bltr); 6258a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com // we have to back up subsequent passes if we're in polygon mode 6268a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com const size_t backup = (SkCanvas::kPolygon_PointMode == mode); 627a76de3d1a92134c3e95ad7fce99234f92fa48268reed@google.com 6288a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com do { 6298a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com size_t n = count; 6308a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com if (n > MAX_DEV_PTS) { 6318a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com n = MAX_DEV_PTS; 6328a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 6338a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com matrix->mapPoints(devPts, pts, n); 6348a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com proc(rec, devPts, n, bltr); 6358a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com pts += n - backup; 6368a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkASSERT(count >= n); 6378a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com count -= n; 6388a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com if (count > 0) { 6398a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com count += backup; 6408a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 6418a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } while (count != 0); 6428a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } else { 6438a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com switch (mode) { 6448a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com case SkCanvas::kPoints_PointMode: { 6458a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com // temporarily mark the paint as filling. 64640c2ba27b6e5c6a4b6c073264f8c0a7c86355abereed@google.com SkPaint newPaint(paint); 64740c2ba27b6e5c6a4b6c073264f8c0a7c86355abereed@google.com newPaint.setStyle(SkPaint::kFill_Style); 6488a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 64940c2ba27b6e5c6a4b6c073264f8c0a7c86355abereed@google.com SkScalar width = newPaint.getStrokeWidth(); 6508a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkScalar radius = SkScalarHalf(width); 651a76de3d1a92134c3e95ad7fce99234f92fa48268reed@google.com 65240c2ba27b6e5c6a4b6c073264f8c0a7c86355abereed@google.com if (newPaint.getStrokeCap() == SkPaint::kRound_Cap) { 6538a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkPath path; 6548a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkMatrix preMatrix; 655a76de3d1a92134c3e95ad7fce99234f92fa48268reed@google.com 6568a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com path.addCircle(0, 0, radius); 6578a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com for (size_t i = 0; i < count; i++) { 6588a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com preMatrix.setTranslate(pts[i].fX, pts[i].fY); 6598a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com // pass true for the last point, since we can modify 6608a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com // then path then 661f2b98d67dcb6fcb3120feede9c72016fc7b3ead8reed@android.com if (fDevice) { 66240c2ba27b6e5c6a4b6c073264f8c0a7c86355abereed@google.com fDevice->drawPath(*this, path, newPaint, &preMatrix, 663f2b98d67dcb6fcb3120feede9c72016fc7b3ead8reed@android.com (count-1) == i); 664f2b98d67dcb6fcb3120feede9c72016fc7b3ead8reed@android.com } else { 66540c2ba27b6e5c6a4b6c073264f8c0a7c86355abereed@google.com this->drawPath(path, newPaint, &preMatrix, 66640c2ba27b6e5c6a4b6c073264f8c0a7c86355abereed@google.com (count-1) == i); 667f2b98d67dcb6fcb3120feede9c72016fc7b3ead8reed@android.com } 6688a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 6698a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } else { 6708a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkRect r; 671a76de3d1a92134c3e95ad7fce99234f92fa48268reed@google.com 6728a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com for (size_t i = 0; i < count; i++) { 6738a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com r.fLeft = pts[i].fX - radius; 6748a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com r.fTop = pts[i].fY - radius; 6758a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com r.fRight = r.fLeft + width; 6768a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com r.fBottom = r.fTop + width; 677f2b98d67dcb6fcb3120feede9c72016fc7b3ead8reed@android.com if (fDevice) { 67840c2ba27b6e5c6a4b6c073264f8c0a7c86355abereed@google.com fDevice->drawRect(*this, r, newPaint); 679f2b98d67dcb6fcb3120feede9c72016fc7b3ead8reed@android.com } else { 68040c2ba27b6e5c6a4b6c073264f8c0a7c86355abereed@google.com this->drawRect(r, newPaint); 681f2b98d67dcb6fcb3120feede9c72016fc7b3ead8reed@android.com } 6828a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 6838a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 6848a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com break; 6858a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 6868a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com case SkCanvas::kLines_PointMode: 687629ab540667422d3edcb97c51e9628b7051e1ba4robertphillips@google.com#ifndef SK_DISABLE_DASHING_OPTIMIZATION 688629ab540667422d3edcb97c51e9628b7051e1ba4robertphillips@google.com if (2 == count && NULL != paint.getPathEffect()) { 689629ab540667422d3edcb97c51e9628b7051e1ba4robertphillips@google.com // most likely a dashed line - see if it is one of the ones 690629ab540667422d3edcb97c51e9628b7051e1ba4robertphillips@google.com // we can accelerate 691629ab540667422d3edcb97c51e9628b7051e1ba4robertphillips@google.com SkStrokeRec rec(paint); 6926d87557278052c131957e5d6e093d3a675162d22robertphillips@google.com SkPathEffect::PointData pointData; 693629ab540667422d3edcb97c51e9628b7051e1ba4robertphillips@google.com 694629ab540667422d3edcb97c51e9628b7051e1ba4robertphillips@google.com SkPath path; 695629ab540667422d3edcb97c51e9628b7051e1ba4robertphillips@google.com path.moveTo(pts[0]); 696629ab540667422d3edcb97c51e9628b7051e1ba4robertphillips@google.com path.lineTo(pts[1]); 697629ab540667422d3edcb97c51e9628b7051e1ba4robertphillips@google.com 6984bbdeac58cc928dc66296bde3bd06e78070d96b7reed@google.com SkRect cullRect = SkRect::Make(fRC->getBounds()); 6994024f32d99b63a599c544a49f526e53c25135159skia.committer@gmail.com 7004bbdeac58cc928dc66296bde3bd06e78070d96b7reed@google.com if (paint.getPathEffect()->asPoints(&pointData, path, rec, 7014bbdeac58cc928dc66296bde3bd06e78070d96b7reed@google.com *fMatrix, &cullRect)) { 7026d87557278052c131957e5d6e093d3a675162d22robertphillips@google.com // 'asPoints' managed to find some fast path 7036d87557278052c131957e5d6e093d3a675162d22robertphillips@google.com 704629ab540667422d3edcb97c51e9628b7051e1ba4robertphillips@google.com SkPaint newP(paint); 705629ab540667422d3edcb97c51e9628b7051e1ba4robertphillips@google.com newP.setPathEffect(NULL); 706935ad026826fb7d31d562ff7326b84ec3a827456robertphillips@google.com newP.setStyle(SkPaint::kFill_Style); 707629ab540667422d3edcb97c51e9628b7051e1ba4robertphillips@google.com 7086d87557278052c131957e5d6e093d3a675162d22robertphillips@google.com if (!pointData.fFirst.isEmpty()) { 7096d87557278052c131957e5d6e093d3a675162d22robertphillips@google.com if (fDevice) { 7106d87557278052c131957e5d6e093d3a675162d22robertphillips@google.com fDevice->drawPath(*this, pointData.fFirst, newP); 7116d87557278052c131957e5d6e093d3a675162d22robertphillips@google.com } else { 7126d87557278052c131957e5d6e093d3a675162d22robertphillips@google.com this->drawPath(pointData.fFirst, newP); 7136d87557278052c131957e5d6e093d3a675162d22robertphillips@google.com } 714629ab540667422d3edcb97c51e9628b7051e1ba4robertphillips@google.com } 7156d87557278052c131957e5d6e093d3a675162d22robertphillips@google.com 7166d87557278052c131957e5d6e093d3a675162d22robertphillips@google.com if (!pointData.fLast.isEmpty()) { 7176d87557278052c131957e5d6e093d3a675162d22robertphillips@google.com if (fDevice) { 7186d87557278052c131957e5d6e093d3a675162d22robertphillips@google.com fDevice->drawPath(*this, pointData.fLast, newP); 7196d87557278052c131957e5d6e093d3a675162d22robertphillips@google.com } else { 7206d87557278052c131957e5d6e093d3a675162d22robertphillips@google.com this->drawPath(pointData.fLast, newP); 7216d87557278052c131957e5d6e093d3a675162d22robertphillips@google.com } 7226d87557278052c131957e5d6e093d3a675162d22robertphillips@google.com } 7236d87557278052c131957e5d6e093d3a675162d22robertphillips@google.com 7246d87557278052c131957e5d6e093d3a675162d22robertphillips@google.com if (pointData.fSize.fX == pointData.fSize.fY) { 7256d87557278052c131957e5d6e093d3a675162d22robertphillips@google.com // The rest of the dashed line can just be drawn as points 7266d87557278052c131957e5d6e093d3a675162d22robertphillips@google.com SkASSERT(pointData.fSize.fX == SkScalarHalf(newP.getStrokeWidth())); 7276d87557278052c131957e5d6e093d3a675162d22robertphillips@google.com 7286d87557278052c131957e5d6e093d3a675162d22robertphillips@google.com if (SkPathEffect::PointData::kCircles_PointFlag & pointData.fFlags) { 7296d87557278052c131957e5d6e093d3a675162d22robertphillips@google.com newP.setStrokeCap(SkPaint::kRound_Cap); 7306d87557278052c131957e5d6e093d3a675162d22robertphillips@google.com } else { 7316d87557278052c131957e5d6e093d3a675162d22robertphillips@google.com newP.setStrokeCap(SkPaint::kButt_Cap); 7326d87557278052c131957e5d6e093d3a675162d22robertphillips@google.com } 7336d87557278052c131957e5d6e093d3a675162d22robertphillips@google.com 7346d87557278052c131957e5d6e093d3a675162d22robertphillips@google.com if (fDevice) { 7357a03d86a3d9adcb13432fbd82039725149487c97skia.committer@gmail.com fDevice->drawPoints(*this, 7366d87557278052c131957e5d6e093d3a675162d22robertphillips@google.com SkCanvas::kPoints_PointMode, 7376d87557278052c131957e5d6e093d3a675162d22robertphillips@google.com pointData.fNumPoints, 7386d87557278052c131957e5d6e093d3a675162d22robertphillips@google.com pointData.fPoints, 7396d87557278052c131957e5d6e093d3a675162d22robertphillips@google.com newP); 7406d87557278052c131957e5d6e093d3a675162d22robertphillips@google.com } else { 7416d87557278052c131957e5d6e093d3a675162d22robertphillips@google.com this->drawPoints(SkCanvas::kPoints_PointMode, 7426d87557278052c131957e5d6e093d3a675162d22robertphillips@google.com pointData.fNumPoints, 7436d87557278052c131957e5d6e093d3a675162d22robertphillips@google.com pointData.fPoints, 7446d87557278052c131957e5d6e093d3a675162d22robertphillips@google.com newP, 7456d87557278052c131957e5d6e093d3a675162d22robertphillips@google.com forceUseDevice); 7466d87557278052c131957e5d6e093d3a675162d22robertphillips@google.com } 7476d87557278052c131957e5d6e093d3a675162d22robertphillips@google.com break; 748935ad026826fb7d31d562ff7326b84ec3a827456robertphillips@google.com } else { 7496d87557278052c131957e5d6e093d3a675162d22robertphillips@google.com // The rest of the dashed line must be drawn as rects 7507a03d86a3d9adcb13432fbd82039725149487c97skia.committer@gmail.com SkASSERT(!(SkPathEffect::PointData::kCircles_PointFlag & 7516d87557278052c131957e5d6e093d3a675162d22robertphillips@google.com pointData.fFlags)); 7526d87557278052c131957e5d6e093d3a675162d22robertphillips@google.com 7536d87557278052c131957e5d6e093d3a675162d22robertphillips@google.com SkRect r; 7546d87557278052c131957e5d6e093d3a675162d22robertphillips@google.com 7556d87557278052c131957e5d6e093d3a675162d22robertphillips@google.com for (int i = 0; i < pointData.fNumPoints; ++i) { 7566d87557278052c131957e5d6e093d3a675162d22robertphillips@google.com r.set(pointData.fPoints[i].fX - pointData.fSize.fX, 7576d87557278052c131957e5d6e093d3a675162d22robertphillips@google.com pointData.fPoints[i].fY - pointData.fSize.fY, 7586d87557278052c131957e5d6e093d3a675162d22robertphillips@google.com pointData.fPoints[i].fX + pointData.fSize.fX, 7596d87557278052c131957e5d6e093d3a675162d22robertphillips@google.com pointData.fPoints[i].fY + pointData.fSize.fY); 7606d87557278052c131957e5d6e093d3a675162d22robertphillips@google.com if (fDevice) { 7616d87557278052c131957e5d6e093d3a675162d22robertphillips@google.com fDevice->drawRect(*this, r, newP); 7626d87557278052c131957e5d6e093d3a675162d22robertphillips@google.com } else { 7636d87557278052c131957e5d6e093d3a675162d22robertphillips@google.com this->drawRect(r, newP); 7646d87557278052c131957e5d6e093d3a675162d22robertphillips@google.com } 7656d87557278052c131957e5d6e093d3a675162d22robertphillips@google.com } 766935ad026826fb7d31d562ff7326b84ec3a827456robertphillips@google.com } 7676d87557278052c131957e5d6e093d3a675162d22robertphillips@google.com 768629ab540667422d3edcb97c51e9628b7051e1ba4robertphillips@google.com break; 769629ab540667422d3edcb97c51e9628b7051e1ba4robertphillips@google.com } 770629ab540667422d3edcb97c51e9628b7051e1ba4robertphillips@google.com } 771629ab540667422d3edcb97c51e9628b7051e1ba4robertphillips@google.com#endif // DISABLE_DASHING_OPTIMIZATION 772629ab540667422d3edcb97c51e9628b7051e1ba4robertphillips@google.com // couldn't take fast path so fall through! 7738a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com case SkCanvas::kPolygon_PointMode: { 7748a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com count -= 1; 7758a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkPath path; 7768a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkPaint p(paint); 7778a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com p.setStyle(SkPaint::kStroke_Style); 7788a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com size_t inc = (SkCanvas::kLines_PointMode == mode) ? 2 : 1; 7798a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com for (size_t i = 0; i < count; i += inc) { 7808a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com path.moveTo(pts[i]); 7818a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com path.lineTo(pts[i+1]); 782f2b98d67dcb6fcb3120feede9c72016fc7b3ead8reed@android.com if (fDevice) { 783f2b98d67dcb6fcb3120feede9c72016fc7b3ead8reed@android.com fDevice->drawPath(*this, path, p, NULL, true); 784f2b98d67dcb6fcb3120feede9c72016fc7b3ead8reed@android.com } else { 785f2b98d67dcb6fcb3120feede9c72016fc7b3ead8reed@android.com this->drawPath(path, p, NULL, true); 786f2b98d67dcb6fcb3120feede9c72016fc7b3ead8reed@android.com } 7878a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com path.rewind(); 7888a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 7898a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com break; 7908a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 7918a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 7928a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 7938a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com} 7948a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 795761fb62b0eb174783316d2a8b933fba896ca6355reed@google.comstatic bool easy_rect_join(const SkPaint& paint, const SkMatrix& matrix, 796761fb62b0eb174783316d2a8b933fba896ca6355reed@google.com SkPoint* strokeSize) { 797761fb62b0eb174783316d2a8b933fba896ca6355reed@google.com if (SkPaint::kMiter_Join != paint.getStrokeJoin() || 798761fb62b0eb174783316d2a8b933fba896ca6355reed@google.com paint.getStrokeMiter() < SK_ScalarSqrt2) { 799761fb62b0eb174783316d2a8b933fba896ca6355reed@google.com return false; 800761fb62b0eb174783316d2a8b933fba896ca6355reed@google.com } 801fbfcd5602128ec010c82cb733c9cdc0a3254f9f3rmistry@google.com 802761fb62b0eb174783316d2a8b933fba896ca6355reed@google.com SkASSERT(matrix.rectStaysRect()); 803761fb62b0eb174783316d2a8b933fba896ca6355reed@google.com SkPoint pt = { paint.getStrokeWidth(), paint.getStrokeWidth() }; 804761fb62b0eb174783316d2a8b933fba896ca6355reed@google.com matrix.mapVectors(strokeSize, &pt, 1); 8056115338c59799b4ef09cda187f23867dea093f6ereed@google.com strokeSize->fX = SkScalarAbs(strokeSize->fX); 8066115338c59799b4ef09cda187f23867dea093f6ereed@google.com strokeSize->fY = SkScalarAbs(strokeSize->fY); 807761fb62b0eb174783316d2a8b933fba896ca6355reed@google.com return true; 8087ff678bc1618dc669648198a7bdca8adfb189505mike@reedtribe.org} 8097ff678bc1618dc669648198a7bdca8adfb189505mike@reedtribe.org 81062ab7addb06bbc5b93460eaf2f70a9f8399308d3reed@google.comSkDraw::RectType SkDraw::ComputeRectType(const SkPaint& paint, 81162ab7addb06bbc5b93460eaf2f70a9f8399308d3reed@google.com const SkMatrix& matrix, 81262ab7addb06bbc5b93460eaf2f70a9f8399308d3reed@google.com SkPoint* strokeSize) { 8137ff678bc1618dc669648198a7bdca8adfb189505mike@reedtribe.org RectType rtype; 8147ff678bc1618dc669648198a7bdca8adfb189505mike@reedtribe.org const SkScalar width = paint.getStrokeWidth(); 81562ab7addb06bbc5b93460eaf2f70a9f8399308d3reed@google.com const bool zeroWidth = (0 == width); 8167ff678bc1618dc669648198a7bdca8adfb189505mike@reedtribe.org SkPaint::Style style = paint.getStyle(); 817fbfcd5602128ec010c82cb733c9cdc0a3254f9f3rmistry@google.com 8187ff678bc1618dc669648198a7bdca8adfb189505mike@reedtribe.org if ((SkPaint::kStrokeAndFill_Style == style) && zeroWidth) { 8197ff678bc1618dc669648198a7bdca8adfb189505mike@reedtribe.org style = SkPaint::kFill_Style; 8207ff678bc1618dc669648198a7bdca8adfb189505mike@reedtribe.org } 821fbfcd5602128ec010c82cb733c9cdc0a3254f9f3rmistry@google.com 8228a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com if (paint.getPathEffect() || paint.getMaskFilter() || 82362ab7addb06bbc5b93460eaf2f70a9f8399308d3reed@google.com paint.getRasterizer() || !matrix.rectStaysRect() || 8247ff678bc1618dc669648198a7bdca8adfb189505mike@reedtribe.org SkPaint::kStrokeAndFill_Style == style) { 82562ab7addb06bbc5b93460eaf2f70a9f8399308d3reed@google.com rtype = kPath_RectType; 82662ab7addb06bbc5b93460eaf2f70a9f8399308d3reed@google.com } else if (SkPaint::kFill_Style == style) { 8277ff678bc1618dc669648198a7bdca8adfb189505mike@reedtribe.org rtype = kFill_RectType; 8287ff678bc1618dc669648198a7bdca8adfb189505mike@reedtribe.org } else if (zeroWidth) { 8297ff678bc1618dc669648198a7bdca8adfb189505mike@reedtribe.org rtype = kHair_RectType; 83062ab7addb06bbc5b93460eaf2f70a9f8399308d3reed@google.com } else if (easy_rect_join(paint, matrix, strokeSize)) { 8317ff678bc1618dc669648198a7bdca8adfb189505mike@reedtribe.org rtype = kStroke_RectType; 8327ff678bc1618dc669648198a7bdca8adfb189505mike@reedtribe.org } else { 8337ff678bc1618dc669648198a7bdca8adfb189505mike@reedtribe.org rtype = kPath_RectType; 8347ff678bc1618dc669648198a7bdca8adfb189505mike@reedtribe.org } 83562ab7addb06bbc5b93460eaf2f70a9f8399308d3reed@google.com return rtype; 83662ab7addb06bbc5b93460eaf2f70a9f8399308d3reed@google.com} 83762ab7addb06bbc5b93460eaf2f70a9f8399308d3reed@google.com 8387324415759fe0c5a0902877b664aa942a89bd940reed@google.comstatic const SkPoint* rect_points(const SkRect& r) { 839fc2f0d0e6e6f72503ff9504296556dc637059c15reed@google.com return SkTCast<const SkPoint*>(&r); 8407324415759fe0c5a0902877b664aa942a89bd940reed@google.com} 8417324415759fe0c5a0902877b664aa942a89bd940reed@google.com 8427324415759fe0c5a0902877b664aa942a89bd940reed@google.comstatic SkPoint* rect_points(SkRect& r) { 843fc2f0d0e6e6f72503ff9504296556dc637059c15reed@google.com return SkTCast<SkPoint*>(&r); 84440c2ba27b6e5c6a4b6c073264f8c0a7c86355abereed@google.com} 84540c2ba27b6e5c6a4b6c073264f8c0a7c86355abereed@google.com 84662ab7addb06bbc5b93460eaf2f70a9f8399308d3reed@google.comvoid SkDraw::drawRect(const SkRect& rect, const SkPaint& paint) const { 84762ab7addb06bbc5b93460eaf2f70a9f8399308d3reed@google.com SkDEBUGCODE(this->validate();) 8487ff678bc1618dc669648198a7bdca8adfb189505mike@reedtribe.org 84962ab7addb06bbc5b93460eaf2f70a9f8399308d3reed@google.com // nothing to draw 850045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com if (fRC->isEmpty()) { 85162ab7addb06bbc5b93460eaf2f70a9f8399308d3reed@google.com return; 85262ab7addb06bbc5b93460eaf2f70a9f8399308d3reed@google.com } 85362ab7addb06bbc5b93460eaf2f70a9f8399308d3reed@google.com 85462ab7addb06bbc5b93460eaf2f70a9f8399308d3reed@google.com SkPoint strokeSize; 85562ab7addb06bbc5b93460eaf2f70a9f8399308d3reed@google.com RectType rtype = ComputeRectType(paint, *fMatrix, &strokeSize); 85662ab7addb06bbc5b93460eaf2f70a9f8399308d3reed@google.com 8577ff678bc1618dc669648198a7bdca8adfb189505mike@reedtribe.org if (kPath_RectType == rtype) { 8588a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkPath tmp; 8598a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com tmp.addRect(rect); 8608a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com tmp.setFillType(SkPath::kWinding_FillType); 861187d5595901d1120d9425851e5afdd773f574502reed@android.com this->drawPath(tmp, paint, NULL, true); 8628a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com return; 8638a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 8648a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 8658a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com const SkMatrix& matrix = *fMatrix; 8668a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkRect devRect; 8678a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 8688a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com // transform rect into devRect 8697324415759fe0c5a0902877b664aa942a89bd940reed@google.com matrix.mapPoints(rect_points(devRect), rect_points(rect), 2); 8707324415759fe0c5a0902877b664aa942a89bd940reed@google.com devRect.sort(); 8718a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 8728a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com if (fBounder && !fBounder->doRect(devRect, paint)) { 8738a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com return; 8748a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 8758a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 8768a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com // look for the quick exit, before we build a blitter 8771c028bd395dc52ca12b99f85f0c297d15a288c2dreed@google.com SkIRect ir; 8781c028bd395dc52ca12b99f85f0c297d15a288c2dreed@google.com devRect.roundOut(&ir); 8791c028bd395dc52ca12b99f85f0c297d15a288c2dreed@google.com if (paint.getStyle() != SkPaint::kFill_Style) { 8801c028bd395dc52ca12b99f85f0c297d15a288c2dreed@google.com // extra space for hairlines 8811c028bd395dc52ca12b99f85f0c297d15a288c2dreed@google.com ir.inset(-1, -1); 8821c028bd395dc52ca12b99f85f0c297d15a288c2dreed@google.com } 8831c028bd395dc52ca12b99f85f0c297d15a288c2dreed@google.com if (fRC->quickReject(ir)) { 8841c028bd395dc52ca12b99f85f0c297d15a288c2dreed@google.com return; 8858a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 8868a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 8871c028bd395dc52ca12b99f85f0c297d15a288c2dreed@google.com SkDeviceLooper looper(*fBitmap, *fRC, ir, paint.isAntiAlias()); 8881c028bd395dc52ca12b99f85f0c297d15a288c2dreed@google.com while (looper.next()) { 8891c028bd395dc52ca12b99f85f0c297d15a288c2dreed@google.com SkRect localDevRect; 8901c028bd395dc52ca12b99f85f0c297d15a288c2dreed@google.com looper.mapRect(&localDevRect, devRect); 8911c028bd395dc52ca12b99f85f0c297d15a288c2dreed@google.com SkMatrix localMatrix; 8921c028bd395dc52ca12b99f85f0c297d15a288c2dreed@google.com looper.mapMatrix(&localMatrix, matrix); 8931c028bd395dc52ca12b99f85f0c297d15a288c2dreed@google.com 8941c028bd395dc52ca12b99f85f0c297d15a288c2dreed@google.com SkAutoBlitterChoose blitterStorage(looper.getBitmap(), localMatrix, 8951c028bd395dc52ca12b99f85f0c297d15a288c2dreed@google.com paint); 8961c028bd395dc52ca12b99f85f0c297d15a288c2dreed@google.com const SkRasterClip& clip = looper.getRC(); 8971c028bd395dc52ca12b99f85f0c297d15a288c2dreed@google.com SkBlitter* blitter = blitterStorage.get(); 8981c028bd395dc52ca12b99f85f0c297d15a288c2dreed@google.com 8991c028bd395dc52ca12b99f85f0c297d15a288c2dreed@google.com // we want to "fill" if we are kFill or kStrokeAndFill, since in the latter 9001c028bd395dc52ca12b99f85f0c297d15a288c2dreed@google.com // case we are also hairline (if we've gotten to here), which devolves to 9011c028bd395dc52ca12b99f85f0c297d15a288c2dreed@google.com // effectively just kFill 9021c028bd395dc52ca12b99f85f0c297d15a288c2dreed@google.com switch (rtype) { 9031c028bd395dc52ca12b99f85f0c297d15a288c2dreed@google.com case kFill_RectType: 9041c028bd395dc52ca12b99f85f0c297d15a288c2dreed@google.com if (paint.isAntiAlias()) { 9051c028bd395dc52ca12b99f85f0c297d15a288c2dreed@google.com SkScan::AntiFillRect(localDevRect, clip, blitter); 9061c028bd395dc52ca12b99f85f0c297d15a288c2dreed@google.com } else { 9071c028bd395dc52ca12b99f85f0c297d15a288c2dreed@google.com SkScan::FillRect(localDevRect, clip, blitter); 9081c028bd395dc52ca12b99f85f0c297d15a288c2dreed@google.com } 9091c028bd395dc52ca12b99f85f0c297d15a288c2dreed@google.com break; 9101c028bd395dc52ca12b99f85f0c297d15a288c2dreed@google.com case kStroke_RectType: 9111c028bd395dc52ca12b99f85f0c297d15a288c2dreed@google.com if (paint.isAntiAlias()) { 9121c028bd395dc52ca12b99f85f0c297d15a288c2dreed@google.com SkScan::AntiFrameRect(localDevRect, strokeSize, clip, blitter); 9131c028bd395dc52ca12b99f85f0c297d15a288c2dreed@google.com } else { 9141c028bd395dc52ca12b99f85f0c297d15a288c2dreed@google.com SkScan::FrameRect(localDevRect, strokeSize, clip, blitter); 9151c028bd395dc52ca12b99f85f0c297d15a288c2dreed@google.com } 9161c028bd395dc52ca12b99f85f0c297d15a288c2dreed@google.com break; 9171c028bd395dc52ca12b99f85f0c297d15a288c2dreed@google.com case kHair_RectType: 9181c028bd395dc52ca12b99f85f0c297d15a288c2dreed@google.com if (paint.isAntiAlias()) { 9191c028bd395dc52ca12b99f85f0c297d15a288c2dreed@google.com SkScan::AntiHairRect(localDevRect, clip, blitter); 9201c028bd395dc52ca12b99f85f0c297d15a288c2dreed@google.com } else { 9211c028bd395dc52ca12b99f85f0c297d15a288c2dreed@google.com SkScan::HairRect(localDevRect, clip, blitter); 9221c028bd395dc52ca12b99f85f0c297d15a288c2dreed@google.com } 9231c028bd395dc52ca12b99f85f0c297d15a288c2dreed@google.com break; 9241c028bd395dc52ca12b99f85f0c297d15a288c2dreed@google.com default: 9251c028bd395dc52ca12b99f85f0c297d15a288c2dreed@google.com SkDEBUGFAIL("bad rtype"); 9261c028bd395dc52ca12b99f85f0c297d15a288c2dreed@google.com } 9278a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 9288a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com} 9298a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 9308a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.comvoid SkDraw::drawDevMask(const SkMask& srcM, const SkPaint& paint) const { 9318a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com if (srcM.fBounds.isEmpty()) { 9328a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com return; 9338a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 9348a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 9350a60b3d32eae945688b69599f11679662657f751bungeman@google.com const SkMask* mask = &srcM; 9368a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 9370a60b3d32eae945688b69599f11679662657f751bungeman@google.com SkMask dstM; 9388a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com if (paint.getMaskFilter() && 9398a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com paint.getMaskFilter()->filterMask(&dstM, srcM, *fMatrix, NULL)) { 9408a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com mask = &dstM; 941bf2ac7e52f84095368dc50600fd6e78cc96044e3bungeman@google.com } else { 942bf2ac7e52f84095368dc50600fd6e78cc96044e3bungeman@google.com dstM.fImage = NULL; 9438a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 94402f55841854ae32f21a13417e9ee711463e488cfbungeman@google.com SkAutoMaskFreeImage ami(dstM.fImage); 9458a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 9468a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com if (fBounder && !fBounder->doIRect(mask->fBounds)) { 9478a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com return; 9488a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 9498a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 950045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com SkAutoBlitterChoose blitterChooser(*fBitmap, *fMatrix, paint); 951045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com SkBlitter* blitter = blitterChooser.get(); 952045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com 953045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com SkAAClipBlitterWrapper wrapper; 954045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com const SkRegion* clipRgn; 9558a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 956045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com if (fRC->isBW()) { 957045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com clipRgn = &fRC->bwRgn(); 958045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com } else { 959045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com wrapper.init(*fRC, blitter); 960045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com clipRgn = &wrapper.getRgn(); 961045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com blitter = wrapper.getBlitter(); 962045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com } 963045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com blitter->blitMaskRegion(*mask, *clipRgn); 9648a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com} 9658a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 966ebdeeb8a018f2df01e190fd961d68a94f0e0fcb9reed@android.comstatic SkScalar fast_len(const SkVector& vec) { 967ebdeeb8a018f2df01e190fd961d68a94f0e0fcb9reed@android.com SkScalar x = SkScalarAbs(vec.fX); 968ebdeeb8a018f2df01e190fd961d68a94f0e0fcb9reed@android.com SkScalar y = SkScalarAbs(vec.fY); 969ebdeeb8a018f2df01e190fd961d68a94f0e0fcb9reed@android.com if (x < y) { 970ebdeeb8a018f2df01e190fd961d68a94f0e0fcb9reed@android.com SkTSwap(x, y); 971ebdeeb8a018f2df01e190fd961d68a94f0e0fcb9reed@android.com } 972ebdeeb8a018f2df01e190fd961d68a94f0e0fcb9reed@android.com return x + SkScalarHalf(y); 973ebdeeb8a018f2df01e190fd961d68a94f0e0fcb9reed@android.com} 974ebdeeb8a018f2df01e190fd961d68a94f0e0fcb9reed@android.com 975ecadf99c8450646dfd9c2754f3e845245beab8b6reed@google.comstatic bool xfermodeSupportsCoverageAsAlpha(SkXfermode* xfer) { 976ecadf99c8450646dfd9c2754f3e845245beab8b6reed@google.com SkXfermode::Coeff dc; 977ecadf99c8450646dfd9c2754f3e845245beab8b6reed@google.com if (!SkXfermode::AsCoeff(xfer, NULL, &dc)) { 978ecadf99c8450646dfd9c2754f3e845245beab8b6reed@google.com return false; 979ecadf99c8450646dfd9c2754f3e845245beab8b6reed@google.com } 980fbfcd5602128ec010c82cb733c9cdc0a3254f9f3rmistry@google.com 981ecadf99c8450646dfd9c2754f3e845245beab8b6reed@google.com switch (dc) { 982ecadf99c8450646dfd9c2754f3e845245beab8b6reed@google.com case SkXfermode::kOne_Coeff: 983ecadf99c8450646dfd9c2754f3e845245beab8b6reed@google.com case SkXfermode::kISA_Coeff: 984ecadf99c8450646dfd9c2754f3e845245beab8b6reed@google.com case SkXfermode::kISC_Coeff: 985ecadf99c8450646dfd9c2754f3e845245beab8b6reed@google.com return true; 986ecadf99c8450646dfd9c2754f3e845245beab8b6reed@google.com default: 987ecadf99c8450646dfd9c2754f3e845245beab8b6reed@google.com return false; 988ecadf99c8450646dfd9c2754f3e845245beab8b6reed@google.com } 989ecadf99c8450646dfd9c2754f3e845245beab8b6reed@google.com} 990ecadf99c8450646dfd9c2754f3e845245beab8b6reed@google.com 991e0a868c84ebc34c5a16b5faa1546016abb9ca0accommit-bot@chromium.orgbool SkDrawTreatAAStrokeAsHairline(SkScalar strokeWidth, const SkMatrix& matrix, 992e0a868c84ebc34c5a16b5faa1546016abb9ca0accommit-bot@chromium.org SkScalar* coverage) { 993e0a868c84ebc34c5a16b5faa1546016abb9ca0accommit-bot@chromium.org SkASSERT(strokeWidth > 0); 994e0a868c84ebc34c5a16b5faa1546016abb9ca0accommit-bot@chromium.org // We need to try to fake a thick-stroke with a modulated hairline. 995ecadf99c8450646dfd9c2754f3e845245beab8b6reed@google.com 9968d430185e08d2067584837a76b7193b803fee7a0tomhudson@google.com if (matrix.hasPerspective()) { 997ebdeeb8a018f2df01e190fd961d68a94f0e0fcb9reed@android.com return false; 998ebdeeb8a018f2df01e190fd961d68a94f0e0fcb9reed@android.com } 999ecadf99c8450646dfd9c2754f3e845245beab8b6reed@google.com 1000ebdeeb8a018f2df01e190fd961d68a94f0e0fcb9reed@android.com SkVector src[2], dst[2]; 1001ecadf99c8450646dfd9c2754f3e845245beab8b6reed@google.com src[0].set(strokeWidth, 0); 1002ecadf99c8450646dfd9c2754f3e845245beab8b6reed@google.com src[1].set(0, strokeWidth); 1003ebdeeb8a018f2df01e190fd961d68a94f0e0fcb9reed@android.com matrix.mapVectors(dst, src, 2); 1004ebdeeb8a018f2df01e190fd961d68a94f0e0fcb9reed@android.com SkScalar len0 = fast_len(dst[0]); 1005ebdeeb8a018f2df01e190fd961d68a94f0e0fcb9reed@android.com SkScalar len1 = fast_len(dst[1]); 1006652807bbc8c57e5fa9622126b51fd369f5c67935agl@chromium.org if (len0 <= SK_Scalar1 && len1 <= SK_Scalar1) { 1007e0a868c84ebc34c5a16b5faa1546016abb9ca0accommit-bot@chromium.org if (NULL != coverage) { 1008e0a868c84ebc34c5a16b5faa1546016abb9ca0accommit-bot@chromium.org *coverage = SkScalarAve(len0, len1); 1009e0a868c84ebc34c5a16b5faa1546016abb9ca0accommit-bot@chromium.org } 1010ebdeeb8a018f2df01e190fd961d68a94f0e0fcb9reed@android.com return true; 1011ebdeeb8a018f2df01e190fd961d68a94f0e0fcb9reed@android.com } 1012ebdeeb8a018f2df01e190fd961d68a94f0e0fcb9reed@android.com return false; 1013ebdeeb8a018f2df01e190fd961d68a94f0e0fcb9reed@android.com} 1014ebdeeb8a018f2df01e190fd961d68a94f0e0fcb9reed@android.com 1015a8e33a92e27ca1523601226cad83c79a7e00c93bscroggo@google.comvoid SkDraw::drawRRect(const SkRRect& rrect, const SkPaint& paint) const { 1016a8e33a92e27ca1523601226cad83c79a7e00c93bscroggo@google.com SkDEBUGCODE(this->validate()); 1017a8e33a92e27ca1523601226cad83c79a7e00c93bscroggo@google.com 1018a8e33a92e27ca1523601226cad83c79a7e00c93bscroggo@google.com if (fRC->isEmpty()) { 1019a8e33a92e27ca1523601226cad83c79a7e00c93bscroggo@google.com return; 1020a8e33a92e27ca1523601226cad83c79a7e00c93bscroggo@google.com } 1021a8e33a92e27ca1523601226cad83c79a7e00c93bscroggo@google.com 1022a8e33a92e27ca1523601226cad83c79a7e00c93bscroggo@google.com { 1023a8e33a92e27ca1523601226cad83c79a7e00c93bscroggo@google.com // TODO: Investigate optimizing these options. They are in the same 1024a8e33a92e27ca1523601226cad83c79a7e00c93bscroggo@google.com // order as SkDraw::drawPath, which handles each case. It may be 1025a8e33a92e27ca1523601226cad83c79a7e00c93bscroggo@google.com // that there is no way to optimize for these using the SkRRect path. 1026a8e33a92e27ca1523601226cad83c79a7e00c93bscroggo@google.com SkScalar coverage; 1027a8e33a92e27ca1523601226cad83c79a7e00c93bscroggo@google.com if (SkDrawTreatAsHairline(paint, *fMatrix, &coverage)) { 1028a8e33a92e27ca1523601226cad83c79a7e00c93bscroggo@google.com goto DRAW_PATH; 1029a8e33a92e27ca1523601226cad83c79a7e00c93bscroggo@google.com } 1030a8e33a92e27ca1523601226cad83c79a7e00c93bscroggo@google.com 1031a8e33a92e27ca1523601226cad83c79a7e00c93bscroggo@google.com if (paint.getPathEffect() || paint.getStyle() != SkPaint::kFill_Style) { 1032a8e33a92e27ca1523601226cad83c79a7e00c93bscroggo@google.com goto DRAW_PATH; 1033a8e33a92e27ca1523601226cad83c79a7e00c93bscroggo@google.com } 1034a8e33a92e27ca1523601226cad83c79a7e00c93bscroggo@google.com 1035a8e33a92e27ca1523601226cad83c79a7e00c93bscroggo@google.com if (paint.getRasterizer()) { 1036a8e33a92e27ca1523601226cad83c79a7e00c93bscroggo@google.com goto DRAW_PATH; 1037a8e33a92e27ca1523601226cad83c79a7e00c93bscroggo@google.com } 1038a8e33a92e27ca1523601226cad83c79a7e00c93bscroggo@google.com } 1039a8e33a92e27ca1523601226cad83c79a7e00c93bscroggo@google.com 1040a8e33a92e27ca1523601226cad83c79a7e00c93bscroggo@google.com if (paint.getMaskFilter()) { 1041a8e33a92e27ca1523601226cad83c79a7e00c93bscroggo@google.com // Transform the rrect into device space. 1042a8e33a92e27ca1523601226cad83c79a7e00c93bscroggo@google.com SkRRect devRRect; 1043a8e33a92e27ca1523601226cad83c79a7e00c93bscroggo@google.com if (rrect.transform(*fMatrix, &devRRect)) { 1044a8e33a92e27ca1523601226cad83c79a7e00c93bscroggo@google.com SkAutoBlitterChoose blitter(*fBitmap, *fMatrix, paint); 1045a8e33a92e27ca1523601226cad83c79a7e00c93bscroggo@google.com if (paint.getMaskFilter()->filterRRect(devRRect, *fMatrix, *fRC, 1046a8e33a92e27ca1523601226cad83c79a7e00c93bscroggo@google.com fBounder, blitter.get(), 1047a8e33a92e27ca1523601226cad83c79a7e00c93bscroggo@google.com SkPaint::kFill_Style)) { 1048a8e33a92e27ca1523601226cad83c79a7e00c93bscroggo@google.com return; // filterRRect() called the blitter, so we're done 1049a8e33a92e27ca1523601226cad83c79a7e00c93bscroggo@google.com } 1050a8e33a92e27ca1523601226cad83c79a7e00c93bscroggo@google.com } 1051a8e33a92e27ca1523601226cad83c79a7e00c93bscroggo@google.com } 1052a8e33a92e27ca1523601226cad83c79a7e00c93bscroggo@google.com 1053a8e33a92e27ca1523601226cad83c79a7e00c93bscroggo@google.comDRAW_PATH: 1054a8e33a92e27ca1523601226cad83c79a7e00c93bscroggo@google.com // Now fall back to the default case of using a path. 1055a8e33a92e27ca1523601226cad83c79a7e00c93bscroggo@google.com SkPath path; 1056a8e33a92e27ca1523601226cad83c79a7e00c93bscroggo@google.com path.addRRect(rrect); 1057a8e33a92e27ca1523601226cad83c79a7e00c93bscroggo@google.com this->drawPath(path, paint, NULL, true); 1058a8e33a92e27ca1523601226cad83c79a7e00c93bscroggo@google.com} 1059a8e33a92e27ca1523601226cad83c79a7e00c93bscroggo@google.com 106032e5d97ccf60f859db063ebd6e903c362e625767reed@google.comvoid SkDraw::drawPath(const SkPath& origSrcPath, const SkPaint& origPaint, 1061126f7f5244502c0cbf1e5fec1d2ad7a0f2eb6c34reed@google.com const SkMatrix* prePathMatrix, bool pathIsMutable, 1062126f7f5244502c0cbf1e5fec1d2ad7a0f2eb6c34reed@google.com bool drawCoverage) const { 1063f2b98d67dcb6fcb3120feede9c72016fc7b3ead8reed@android.com SkDEBUGCODE(this->validate();) 10648a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 10658a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com // nothing to draw 1066045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com if (fRC->isEmpty()) { 10678a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com return; 10688a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 10698a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 10708a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkPath* pathPtr = (SkPath*)&origSrcPath; 10718a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com bool doFill = true; 10728a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkPath tmpPath; 10738a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkMatrix tmpMatrix; 10748a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com const SkMatrix* matrix = fMatrix; 10758a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 10768a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com if (prePathMatrix) { 107732e5d97ccf60f859db063ebd6e903c362e625767reed@google.com if (origPaint.getPathEffect() || origPaint.getStyle() != SkPaint::kFill_Style || 107832e5d97ccf60f859db063ebd6e903c362e625767reed@google.com origPaint.getRasterizer()) { 10798a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkPath* result = pathPtr; 1080a76de3d1a92134c3e95ad7fce99234f92fa48268reed@google.com 10818a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com if (!pathIsMutable) { 10828a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com result = &tmpPath; 10838a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com pathIsMutable = true; 10848a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 10858a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com pathPtr->transform(*prePathMatrix, result); 10868a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com pathPtr = result; 10878a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } else { 10888a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com if (!tmpMatrix.setConcat(*matrix, *prePathMatrix)) { 10898a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com // overflow 10908a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com return; 10918a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 10928a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com matrix = &tmpMatrix; 10938a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 10948a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 10958a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com // at this point we're done with prePathMatrix 10968a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkDEBUGCODE(prePathMatrix = (const SkMatrix*)0x50FF8001;) 1097a76de3d1a92134c3e95ad7fce99234f92fa48268reed@google.com 10985dc26b97366934ba0f896cea02a3fec027d5d5c1bsalomon@google.com SkTCopyOnFirstWrite<SkPaint> paint(origPaint); 1099a76de3d1a92134c3e95ad7fce99234f92fa48268reed@google.com 1100ecadf99c8450646dfd9c2754f3e845245beab8b6reed@google.com { 1101dd1be60702b3622f49d97651e31d13eaf2175cf8bsalomon@google.com SkScalar coverage; 1102dd1be60702b3622f49d97651e31d13eaf2175cf8bsalomon@google.com if (SkDrawTreatAsHairline(origPaint, *matrix, &coverage)) { 1103dd1be60702b3622f49d97651e31d13eaf2175cf8bsalomon@google.com if (SK_Scalar1 == coverage) { 11045dc26b97366934ba0f896cea02a3fec027d5d5c1bsalomon@google.com paint.writable()->setStrokeWidth(0); 1105dd1be60702b3622f49d97651e31d13eaf2175cf8bsalomon@google.com } else if (xfermodeSupportsCoverageAsAlpha(origPaint.getXfermode())) { 1106dd1be60702b3622f49d97651e31d13eaf2175cf8bsalomon@google.com U8CPU newAlpha; 1107dd1be60702b3622f49d97651e31d13eaf2175cf8bsalomon@google.com#if 0 1108dd1be60702b3622f49d97651e31d13eaf2175cf8bsalomon@google.com newAlpha = SkToU8(SkScalarRoundToInt(coverage * 1109dd1be60702b3622f49d97651e31d13eaf2175cf8bsalomon@google.com origPaint.getAlpha())); 1110dd1be60702b3622f49d97651e31d13eaf2175cf8bsalomon@google.com#else 1111dd1be60702b3622f49d97651e31d13eaf2175cf8bsalomon@google.com // this is the old technique, which we preserve for now so 1112dd1be60702b3622f49d97651e31d13eaf2175cf8bsalomon@google.com // we don't change previous results (testing) 1113dd1be60702b3622f49d97651e31d13eaf2175cf8bsalomon@google.com // the new way seems fine, its just (a tiny bit) different 1114dd1be60702b3622f49d97651e31d13eaf2175cf8bsalomon@google.com int scale = (int)SkScalarMul(coverage, 256); 1115dd1be60702b3622f49d97651e31d13eaf2175cf8bsalomon@google.com newAlpha = origPaint.getAlpha() * scale >> 8; 1116dd1be60702b3622f49d97651e31d13eaf2175cf8bsalomon@google.com#endif 11175dc26b97366934ba0f896cea02a3fec027d5d5c1bsalomon@google.com SkPaint* writablePaint = paint.writable(); 11185dc26b97366934ba0f896cea02a3fec027d5d5c1bsalomon@google.com writablePaint->setStrokeWidth(0); 11195dc26b97366934ba0f896cea02a3fec027d5d5c1bsalomon@google.com writablePaint->setAlpha(newAlpha); 1120dd1be60702b3622f49d97651e31d13eaf2175cf8bsalomon@google.com } 11218a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 11228a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 1123a76de3d1a92134c3e95ad7fce99234f92fa48268reed@google.com 112432e5d97ccf60f859db063ebd6e903c362e625767reed@google.com if (paint->getPathEffect() || paint->getStyle() != SkPaint::kFill_Style) { 11254bbdeac58cc928dc66296bde3bd06e78070d96b7reed@google.com SkRect cullRect; 11264bbdeac58cc928dc66296bde3bd06e78070d96b7reed@google.com const SkRect* cullRectPtr = NULL; 11274bbdeac58cc928dc66296bde3bd06e78070d96b7reed@google.com if (this->computeConservativeLocalClipBounds(&cullRect)) { 11284bbdeac58cc928dc66296bde3bd06e78070d96b7reed@google.com cullRectPtr = &cullRect; 11294bbdeac58cc928dc66296bde3bd06e78070d96b7reed@google.com } 11304bbdeac58cc928dc66296bde3bd06e78070d96b7reed@google.com doFill = paint->getFillPath(*pathPtr, &tmpPath, cullRectPtr); 11318a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com pathPtr = &tmpPath; 11328a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 1133a76de3d1a92134c3e95ad7fce99234f92fa48268reed@google.com 113432e5d97ccf60f859db063ebd6e903c362e625767reed@google.com if (paint->getRasterizer()) { 11358a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkMask mask; 113632e5d97ccf60f859db063ebd6e903c362e625767reed@google.com if (paint->getRasterizer()->rasterize(*pathPtr, *matrix, 1137045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com &fRC->getBounds(), paint->getMaskFilter(), &mask, 11388a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkMask::kComputeBoundsAndRenderImage_CreateMode)) { 113932e5d97ccf60f859db063ebd6e903c362e625767reed@google.com this->drawDevMask(mask, *paint); 11408a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkMask::FreeImage(mask.fImage); 11418a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 11428a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com return; 11438a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 11448a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 11458a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com // avoid possibly allocating a new path in transform if we can 11468a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkPath* devPathPtr = pathIsMutable ? pathPtr : &tmpPath; 11478a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 11488a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com // transform the path into device space 11498a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com pathPtr->transform(*matrix, devPathPtr); 11508a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 1151126f7f5244502c0cbf1e5fec1d2ad7a0f2eb6c34reed@google.com SkAutoBlitterChoose blitter(*fBitmap, *fMatrix, *paint, drawCoverage); 11528a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 11532ac4ef5e6e0c9c95c9200408ba25a95ca758eac2junov@chromium.org if (paint->getMaskFilter()) { 1154fbfcd5602128ec010c82cb733c9cdc0a3254f9f3rmistry@google.com SkPaint::Style style = doFill ? SkPaint::kFill_Style : 11552ac4ef5e6e0c9c95c9200408ba25a95ca758eac2junov@chromium.org SkPaint::kStroke_Style; 11562ac4ef5e6e0c9c95c9200408ba25a95ca758eac2junov@chromium.org if (paint->getMaskFilter()->filterPath(*devPathPtr, *fMatrix, *fRC, 11572ac4ef5e6e0c9c95c9200408ba25a95ca758eac2junov@chromium.org fBounder, blitter.get(), 11582ac4ef5e6e0c9c95c9200408ba25a95ca758eac2junov@chromium.org style)) { 11592ac4ef5e6e0c9c95c9200408ba25a95ca758eac2junov@chromium.org return; // filterPath() called the blitter, so we're done 11602ac4ef5e6e0c9c95c9200408ba25a95ca758eac2junov@chromium.org } 11618a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 11628a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 116332e5d97ccf60f859db063ebd6e903c362e625767reed@google.com if (fBounder && !fBounder->doPath(*devPathPtr, *paint, doFill)) { 11648a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com return; 11658a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 11668a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 1167045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com void (*proc)(const SkPath&, const SkRasterClip&, SkBlitter*); 11688a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com if (doFill) { 116932e5d97ccf60f859db063ebd6e903c362e625767reed@google.com if (paint->isAntiAlias()) { 1170045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com proc = SkScan::AntiFillPath; 11718a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } else { 1172045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com proc = SkScan::FillPath; 11738a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 11748a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } else { // hairline 117532e5d97ccf60f859db063ebd6e903c362e625767reed@google.com if (paint->isAntiAlias()) { 1176045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com proc = SkScan::AntiHairPath; 11778a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } else { 1178045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com proc = SkScan::HairPath; 11798a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 11808a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 1181045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com proc(*devPathPtr, *fRC, blitter.get()); 11828a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com} 11838a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 11840baf19375466cfc24c96532df406e7c5b1d1aae8reed@android.com/** For the purposes of drawing bitmaps, if a matrix is "almost" translate 11850baf19375466cfc24c96532df406e7c5b1d1aae8reed@android.com go ahead and treat it as if it were, so that subsequent code can go fast. 11860baf19375466cfc24c96532df406e7c5b1d1aae8reed@android.com */ 11870baf19375466cfc24c96532df406e7c5b1d1aae8reed@android.comstatic bool just_translate(const SkMatrix& matrix, const SkBitmap& bitmap) { 1188070dcd8ad37a4c5b8a9015938409b27bb3ce3ab9reed@google.com unsigned bits = 0; // TODO: find a way to allow the caller to tell us to 1189070dcd8ad37a4c5b8a9015938409b27bb3ce3ab9reed@google.com // respect filtering. 1190070dcd8ad37a4c5b8a9015938409b27bb3ce3ab9reed@google.com return SkTreatAsSprite(matrix, bitmap.width(), bitmap.height(), bits); 11918a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com} 11928a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 11938a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.comvoid SkDraw::drawBitmapAsMask(const SkBitmap& bitmap, 11948a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com const SkPaint& paint) const { 11954469938e92d779dff05e745559e67907bbf21e78reed@google.com SkASSERT(bitmap.config() == SkBitmap::kA8_Config); 11968a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 1197a76de3d1a92134c3e95ad7fce99234f92fa48268reed@google.com if (just_translate(*fMatrix, bitmap)) { 11988a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com int ix = SkScalarRound(fMatrix->getTranslateX()); 11998a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com int iy = SkScalarRound(fMatrix->getTranslateY()); 12008a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 1201a641f3f18e5319773989812a888f3fad49e4f2adreed@google.com SkAutoLockPixels alp(bitmap); 1202a641f3f18e5319773989812a888f3fad49e4f2adreed@google.com if (!bitmap.readyToDraw()) { 1203a641f3f18e5319773989812a888f3fad49e4f2adreed@google.com return; 1204a641f3f18e5319773989812a888f3fad49e4f2adreed@google.com } 1205a641f3f18e5319773989812a888f3fad49e4f2adreed@google.com 12068a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkMask mask; 12078a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com mask.fBounds.set(ix, iy, ix + bitmap.width(), iy + bitmap.height()); 12088a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com mask.fFormat = SkMask::kA8_Format; 1209e5f48243bdbed2662be7a31be0888abc273b09e8scroggo@google.com mask.fRowBytes = SkToU32(bitmap.rowBytes()); 12108a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com mask.fImage = bitmap.getAddr8(0, 0); 1211a76de3d1a92134c3e95ad7fce99234f92fa48268reed@google.com 12128a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com this->drawDevMask(mask, paint); 12138a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } else { // need to xform the bitmap first 12148a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkRect r; 12158a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkMask mask; 1216a76de3d1a92134c3e95ad7fce99234f92fa48268reed@google.com 12178a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com r.set(0, 0, 12188a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkIntToScalar(bitmap.width()), SkIntToScalar(bitmap.height())); 12198a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com fMatrix->mapRect(&r); 12208a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com r.round(&mask.fBounds); 1221a76de3d1a92134c3e95ad7fce99234f92fa48268reed@google.com 12228a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com // set the mask's bounds to the transformed bitmap-bounds, 12238a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com // clipped to the actual device 12248a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com { 12258a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkIRect devBounds; 12268a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com devBounds.set(0, 0, fBitmap->width(), fBitmap->height()); 12278a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com // need intersect(l, t, r, b) on irect 12288a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com if (!mask.fBounds.intersect(devBounds)) { 12298a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com return; 12308a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 12318a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 1232543ed9352c7dfd93071c08b14930cca2e82a08d4reed@android.com 12338a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com mask.fFormat = SkMask::kA8_Format; 12348a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com mask.fRowBytes = SkAlign4(mask.fBounds.width()); 1235543ed9352c7dfd93071c08b14930cca2e82a08d4reed@android.com size_t size = mask.computeImageSize(); 1236543ed9352c7dfd93071c08b14930cca2e82a08d4reed@android.com if (0 == size) { 1237543ed9352c7dfd93071c08b14930cca2e82a08d4reed@android.com // the mask is too big to allocated, draw nothing 1238543ed9352c7dfd93071c08b14930cca2e82a08d4reed@android.com return; 1239543ed9352c7dfd93071c08b14930cca2e82a08d4reed@android.com } 12408a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 12418a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com // allocate (and clear) our temp buffer to hold the transformed bitmap 12428a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkAutoMalloc storage(size); 12438a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com mask.fImage = (uint8_t*)storage.get(); 12448a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com memset(mask.fImage, 0, size); 1245a76de3d1a92134c3e95ad7fce99234f92fa48268reed@google.com 12468a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com // now draw our bitmap(src) into mask(dst), transformed by the matrix 12478a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com { 12488a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkBitmap device; 12498a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com device.setConfig(SkBitmap::kA8_Config, mask.fBounds.width(), 12508a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com mask.fBounds.height(), mask.fRowBytes); 12518a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com device.setPixels(mask.fImage); 1252a76de3d1a92134c3e95ad7fce99234f92fa48268reed@google.com 12538a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkCanvas c(device); 12548a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com // need the unclipped top/left for the translate 12558a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com c.translate(-SkIntToScalar(mask.fBounds.fLeft), 12568a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com -SkIntToScalar(mask.fBounds.fTop)); 12578a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com c.concat(*fMatrix); 12583469c76c40790b409621fd7eff34f56240718549reed@android.com 12593469c76c40790b409621fd7eff34f56240718549reed@android.com // We can't call drawBitmap, or we'll infinitely recurse. Instead 1260fb12c3e6ba84f95dc15fbaddc239dede0ba1d60ereed@android.com // we manually build a shader and draw that into our new mask 12613469c76c40790b409621fd7eff34f56240718549reed@android.com SkPaint tmpPaint; 12623469c76c40790b409621fd7eff34f56240718549reed@android.com tmpPaint.setFlags(paint.getFlags()); 126340c2ba27b6e5c6a4b6c073264f8c0a7c86355abereed@google.com SkAutoBitmapShaderInstall install(bitmap, tmpPaint); 12643469c76c40790b409621fd7eff34f56240718549reed@android.com SkRect rr; 12653469c76c40790b409621fd7eff34f56240718549reed@android.com rr.set(0, 0, SkIntToScalar(bitmap.width()), 12663469c76c40790b409621fd7eff34f56240718549reed@android.com SkIntToScalar(bitmap.height())); 126740c2ba27b6e5c6a4b6c073264f8c0a7c86355abereed@google.com c.drawRect(rr, install.paintWithShader()); 12688a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 12698a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com this->drawDevMask(mask, paint); 12708a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 12718a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com} 12728a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 1273045e62d715f5ee9b03deb5af3c750f8318096179reed@google.comstatic bool clipped_out(const SkMatrix& m, const SkRasterClip& c, 12748a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com const SkRect& srcR) { 12758a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkRect dstR; 12768a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkIRect devIR; 1277a76de3d1a92134c3e95ad7fce99234f92fa48268reed@google.com 12788a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com m.mapRect(&dstR, srcR); 1279a76de3d1a92134c3e95ad7fce99234f92fa48268reed@google.com dstR.roundOut(&devIR); 12808a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com return c.quickReject(devIR); 12818a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com} 12828a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 1283045e62d715f5ee9b03deb5af3c750f8318096179reed@google.comstatic bool clipped_out(const SkMatrix& matrix, const SkRasterClip& clip, 12848a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com int width, int height) { 12858a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkRect r; 12868a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com r.set(0, 0, SkIntToScalar(width), SkIntToScalar(height)); 12878a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com return clipped_out(matrix, clip, r); 12888a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com} 12898a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 1290045e62d715f5ee9b03deb5af3c750f8318096179reed@google.comstatic bool clipHandlesSprite(const SkRasterClip& clip, int x, int y, 1291045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com const SkBitmap& bitmap) { 1292045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com return clip.isBW() || 1293045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com clip.quickContains(x, y, x + bitmap.width(), y + bitmap.height()); 1294045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com} 1295045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com 12968a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.comvoid SkDraw::drawBitmap(const SkBitmap& bitmap, const SkMatrix& prematrix, 129740c2ba27b6e5c6a4b6c073264f8c0a7c86355abereed@google.com const SkPaint& origPaint) const { 1298f2b98d67dcb6fcb3120feede9c72016fc7b3ead8reed@android.com SkDEBUGCODE(this->validate();) 12998a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 13008a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com // nothing to draw 1301045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com if (fRC->isEmpty() || 13028a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com bitmap.width() == 0 || bitmap.height() == 0 || 13034469938e92d779dff05e745559e67907bbf21e78reed@google.com bitmap.config() == SkBitmap::kNo_Config) { 13048a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com return; 13058a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 1306a76de3d1a92134c3e95ad7fce99234f92fa48268reed@google.com 130740c2ba27b6e5c6a4b6c073264f8c0a7c86355abereed@google.com SkPaint paint(origPaint); 130840c2ba27b6e5c6a4b6c073264f8c0a7c86355abereed@google.com paint.setStyle(SkPaint::kFill_Style); 1309a76de3d1a92134c3e95ad7fce99234f92fa48268reed@google.com 13108a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkMatrix matrix; 13118a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com if (!matrix.setConcat(*fMatrix, prematrix)) { 13128a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com return; 13138a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 13148a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 1315045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com if (clipped_out(matrix, *fRC, bitmap.width(), bitmap.height())) { 13168a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com return; 13178a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 13188a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 1319218521e15706c4377b1be49d931c4d7c8d597445reed@android.com if (fBounder && just_translate(matrix, bitmap)) { 1320218521e15706c4377b1be49d931c4d7c8d597445reed@android.com SkIRect ir; 1321218521e15706c4377b1be49d931c4d7c8d597445reed@android.com int32_t ix = SkScalarRound(matrix.getTranslateX()); 1322218521e15706c4377b1be49d931c4d7c8d597445reed@android.com int32_t iy = SkScalarRound(matrix.getTranslateY()); 1323218521e15706c4377b1be49d931c4d7c8d597445reed@android.com ir.set(ix, iy, ix + bitmap.width(), iy + bitmap.height()); 1324218521e15706c4377b1be49d931c4d7c8d597445reed@android.com if (!fBounder->doIRect(ir)) { 1325218521e15706c4377b1be49d931c4d7c8d597445reed@android.com return; 1326218521e15706c4377b1be49d931c4d7c8d597445reed@android.com } 1327218521e15706c4377b1be49d931c4d7c8d597445reed@android.com } 1328218521e15706c4377b1be49d931c4d7c8d597445reed@android.com 13294469938e92d779dff05e745559e67907bbf21e78reed@google.com if (bitmap.config() != SkBitmap::kA8_Config && 13300baf19375466cfc24c96532df406e7c5b1d1aae8reed@android.com just_translate(matrix, bitmap)) { 1331f7ef56d9104fc651769760df9d5f861ef36de658reed@google.com // 1332f7ef56d9104fc651769760df9d5f861ef36de658reed@google.com // It is safe to call lock pixels now, since we know the matrix is 1333f7ef56d9104fc651769760df9d5f861ef36de658reed@google.com // (more or less) identity. 1334f7ef56d9104fc651769760df9d5f861ef36de658reed@google.com // 1335f7ef56d9104fc651769760df9d5f861ef36de658reed@google.com SkAutoLockPixels alp(bitmap); 1336f7ef56d9104fc651769760df9d5f861ef36de658reed@google.com if (!bitmap.readyToDraw()) { 1337f7ef56d9104fc651769760df9d5f861ef36de658reed@google.com return; 1338f7ef56d9104fc651769760df9d5f861ef36de658reed@google.com } 1339045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com int ix = SkScalarRound(matrix.getTranslateX()); 1340045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com int iy = SkScalarRound(matrix.getTranslateY()); 1341045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com if (clipHandlesSprite(*fRC, ix, iy, bitmap)) { 1342045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com uint32_t storage[kBlitterStorageLongCount]; 1343045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com SkBlitter* blitter = SkBlitter::ChooseSprite(*fBitmap, paint, bitmap, 1344045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com ix, iy, storage, sizeof(storage)); 1345045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com if (blitter) { 1346045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com SkAutoTPlacementDelete<SkBlitter> ad(blitter, storage); 1347045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com 1348045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com SkIRect ir; 1349045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com ir.set(ix, iy, ix + bitmap.width(), iy + bitmap.height()); 1350045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com 1351045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com SkScan::FillIRect(ir, *fRC, blitter); 1352045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com return; 13538a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 13548a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 13558a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 1356a76de3d1a92134c3e95ad7fce99234f92fa48268reed@google.com 13578a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com // now make a temp draw on the stack, and use it 13588a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com // 13598a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkDraw draw(*this); 13608a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com draw.fMatrix = &matrix; 1361a76de3d1a92134c3e95ad7fce99234f92fa48268reed@google.com 13624469938e92d779dff05e745559e67907bbf21e78reed@google.com if (bitmap.config() == SkBitmap::kA8_Config) { 13638a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com draw.drawBitmapAsMask(bitmap, paint); 13648a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } else { 136540c2ba27b6e5c6a4b6c073264f8c0a7c86355abereed@google.com SkAutoBitmapShaderInstall install(bitmap, paint); 13668a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 13678a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkRect r; 13688a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com r.set(0, 0, SkIntToScalar(bitmap.width()), 13698a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkIntToScalar(bitmap.height())); 1370a76de3d1a92134c3e95ad7fce99234f92fa48268reed@google.com // is this ok if paint has a rasterizer? 137140c2ba27b6e5c6a4b6c073264f8c0a7c86355abereed@google.com draw.drawRect(r, install.paintWithShader()); 13728a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 13738a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com} 13748a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 13758a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.comvoid SkDraw::drawSprite(const SkBitmap& bitmap, int x, int y, 137640c2ba27b6e5c6a4b6c073264f8c0a7c86355abereed@google.com const SkPaint& origPaint) const { 1377f2b98d67dcb6fcb3120feede9c72016fc7b3ead8reed@android.com SkDEBUGCODE(this->validate();) 1378a76de3d1a92134c3e95ad7fce99234f92fa48268reed@google.com 13798a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com // nothing to draw 1380045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com if (fRC->isEmpty() || 13818a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com bitmap.width() == 0 || bitmap.height() == 0 || 13824469938e92d779dff05e745559e67907bbf21e78reed@google.com bitmap.config() == SkBitmap::kNo_Config) { 13838a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com return; 13848a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 13858a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 13868a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkIRect bounds; 13878a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com bounds.set(x, y, x + bitmap.width(), y + bitmap.height()); 13888a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 1389045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com if (fRC->quickReject(bounds)) { 13908a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com return; // nothing to draw 13918a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 13928a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 139340c2ba27b6e5c6a4b6c073264f8c0a7c86355abereed@google.com SkPaint paint(origPaint); 139440c2ba27b6e5c6a4b6c073264f8c0a7c86355abereed@google.com paint.setStyle(SkPaint::kFill_Style); 13958a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 1396045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com if (NULL == paint.getColorFilter() && clipHandlesSprite(*fRC, x, y, bitmap)) { 13978a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com uint32_t storage[kBlitterStorageLongCount]; 13988a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkBlitter* blitter = SkBlitter::ChooseSprite(*fBitmap, paint, bitmap, 13998a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com x, y, storage, sizeof(storage)); 14008a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 14018a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com if (blitter) { 14028a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkAutoTPlacementDelete<SkBlitter> ad(blitter, storage); 14038a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 14048a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com if (fBounder && !fBounder->doIRect(bounds)) { 14058a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com return; 14068a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 14078a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 1408045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com SkScan::FillIRect(bounds, *fRC, blitter); 14098a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com return; 14108a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 14118a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 14128a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 141340c2ba27b6e5c6a4b6c073264f8c0a7c86355abereed@google.com SkAutoBitmapShaderInstall install(bitmap, paint); 141440c2ba27b6e5c6a4b6c073264f8c0a7c86355abereed@google.com const SkPaint& shaderPaint = install.paintWithShader(); 14158a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 14168a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkMatrix matrix; 14178a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkRect r; 14188a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 14198a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com // get a scalar version of our rect 14208a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com r.set(bounds); 14218a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 14228a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com // tell the shader our offset 14238a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com matrix.setTranslate(r.fLeft, r.fTop); 142440c2ba27b6e5c6a4b6c073264f8c0a7c86355abereed@google.com shaderPaint.getShader()->setLocalMatrix(matrix); 1425a76de3d1a92134c3e95ad7fce99234f92fa48268reed@google.com 14268a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkDraw draw(*this); 14278a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com matrix.reset(); 14288a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com draw.fMatrix = &matrix; 14298a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com // call ourself with a rect 1430a76de3d1a92134c3e95ad7fce99234f92fa48268reed@google.com // is this OK if paint has a rasterizer? 143140c2ba27b6e5c6a4b6c073264f8c0a7c86355abereed@google.com draw.drawRect(r, shaderPaint); 14328a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com} 14338a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 14348a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com/////////////////////////////////////////////////////////////////////////////// 14358a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 14368a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com#include "SkScalerContext.h" 14378a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com#include "SkGlyphCache.h" 1438e69137620ab0b5b40d230318c8e11b822f63cb9dreed@google.com#include "SkTextToPathIter.h" 14398a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com#include "SkUtils.h" 14408a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 14418a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.comstatic void measure_text(SkGlyphCache* cache, SkDrawCacheProc glyphCacheProc, 14428a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com const char text[], size_t byteLength, SkVector* stopVector) { 14438a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkFixed x = 0, y = 0; 14448a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com const char* stop = text + byteLength; 14458a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 14468a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkAutoKern autokern; 1447a76de3d1a92134c3e95ad7fce99234f92fa48268reed@google.com 14488a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com while (text < stop) { 14498a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com // don't need x, y here, since all subpixel variants will have the 14508a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com // same advance 14518a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com const SkGlyph& glyph = glyphCacheProc(cache, &text, 0, 0); 14528a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 14538a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com x += autokern.adjust(glyph) + glyph.fAdvanceX; 14548a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com y += glyph.fAdvanceY; 14558a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 14568a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com stopVector->set(SkFixedToScalar(x), SkFixedToScalar(y)); 14578a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 14588a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkASSERT(text == stop); 14598a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com} 14608a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 14618a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.comvoid SkDraw::drawText_asPaths(const char text[], size_t byteLength, 14628a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkScalar x, SkScalar y, 14638a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com const SkPaint& paint) const { 1464f2b98d67dcb6fcb3120feede9c72016fc7b3ead8reed@android.com SkDEBUGCODE(this->validate();) 14658a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 1466166e653f67f3fffc3846184a25ce45ab083f07a2djsollen@google.com SkTextToPathIter iter(text, byteLength, paint, true); 14678a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 14688a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkMatrix matrix; 14698a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com matrix.setScale(iter.getPathScale(), iter.getPathScale()); 14708a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com matrix.postTranslate(x, y); 14718a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 14728a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com const SkPath* iterPath; 14738a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkScalar xpos, prevXPos = 0; 14748a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 14757b4531f64cbd85d32a77ceab1bdec8335c5a7864reed@google.com while (iter.next(&iterPath, &xpos)) { 14768a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com matrix.postTranslate(xpos - prevXPos, 0); 14777b4531f64cbd85d32a77ceab1bdec8335c5a7864reed@google.com if (iterPath) { 14787b4531f64cbd85d32a77ceab1bdec8335c5a7864reed@google.com const SkPaint& pnt = iter.getPaint(); 14797b4531f64cbd85d32a77ceab1bdec8335c5a7864reed@google.com if (fDevice) { 14807b4531f64cbd85d32a77ceab1bdec8335c5a7864reed@google.com fDevice->drawPath(*this, *iterPath, pnt, &matrix, false); 14817b4531f64cbd85d32a77ceab1bdec8335c5a7864reed@google.com } else { 14827b4531f64cbd85d32a77ceab1bdec8335c5a7864reed@google.com this->drawPath(*iterPath, pnt, &matrix, false); 14837b4531f64cbd85d32a77ceab1bdec8335c5a7864reed@google.com } 1484f2b98d67dcb6fcb3120feede9c72016fc7b3ead8reed@android.com } 14858a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com prevXPos = xpos; 14868a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 14878a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com} 14888a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 14898a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com// disable warning : local variable used without having been initialized 1490a76de3d1a92134c3e95ad7fce99234f92fa48268reed@google.com#if defined _WIN32 && _MSC_VER >= 1300 14918a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com#pragma warning ( push ) 14928a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com#pragma warning ( disable : 4701 ) 14938a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com#endif 14948a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 14958a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com////////////////////////////////////////////////////////////////////////////// 14968a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 14978a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.comstatic void D1G_NoBounder_RectClip(const SkDraw1Glyph& state, 1498f2b98d67dcb6fcb3120feede9c72016fc7b3ead8reed@android.com SkFixed fx, SkFixed fy, 1499f2b98d67dcb6fcb3120feede9c72016fc7b3ead8reed@android.com const SkGlyph& glyph) { 1500f2b98d67dcb6fcb3120feede9c72016fc7b3ead8reed@android.com int left = SkFixedFloor(fx); 1501f2b98d67dcb6fcb3120feede9c72016fc7b3ead8reed@android.com int top = SkFixedFloor(fy); 15028a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkASSERT(glyph.fWidth > 0 && glyph.fHeight > 0); 150383a444602ec580a0040713eed588c245b4ae0ee9tomhudson@google.com SkASSERT(NULL == state.fBounder); 150483a444602ec580a0040713eed588c245b4ae0ee9tomhudson@google.com SkASSERT((NULL == state.fClip && state.fAAClip) || 150583a444602ec580a0040713eed588c245b4ae0ee9tomhudson@google.com (state.fClip && NULL == state.fAAClip && state.fClip->isRect())); 15068a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 15078a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com left += glyph.fLeft; 15088a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com top += glyph.fTop; 15098a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 15108a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com int right = left + glyph.fWidth; 15118a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com int bottom = top + glyph.fHeight; 15128a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 1513fbfcd5602128ec010c82cb733c9cdc0a3254f9f3rmistry@google.com SkMask mask; 1514fbfcd5602128ec010c82cb733c9cdc0a3254f9f3rmistry@google.com SkIRect storage; 1515fbfcd5602128ec010c82cb733c9cdc0a3254f9f3rmistry@google.com SkIRect* bounds = &mask.fBounds; 151683a444602ec580a0040713eed588c245b4ae0ee9tomhudson@google.com 151783a444602ec580a0040713eed588c245b4ae0ee9tomhudson@google.com mask.fBounds.set(left, top, right, bottom); 151883a444602ec580a0040713eed588c245b4ae0ee9tomhudson@google.com 151983a444602ec580a0040713eed588c245b4ae0ee9tomhudson@google.com // this extra test is worth it, assuming that most of the time it succeeds 152083a444602ec580a0040713eed588c245b4ae0ee9tomhudson@google.com // since we can avoid writing to storage 152183a444602ec580a0040713eed588c245b4ae0ee9tomhudson@google.com if (!state.fClipBounds.containsNoEmptyCheck(left, top, right, bottom)) { 152283a444602ec580a0040713eed588c245b4ae0ee9tomhudson@google.com if (!storage.intersectNoEmptyCheck(mask.fBounds, state.fClipBounds)) 152383a444602ec580a0040713eed588c245b4ae0ee9tomhudson@google.com return; 152483a444602ec580a0040713eed588c245b4ae0ee9tomhudson@google.com bounds = &storage; 152583a444602ec580a0040713eed588c245b4ae0ee9tomhudson@google.com } 152683a444602ec580a0040713eed588c245b4ae0ee9tomhudson@google.com 152783a444602ec580a0040713eed588c245b4ae0ee9tomhudson@google.com uint8_t* aa = (uint8_t*)glyph.fImage; 152883a444602ec580a0040713eed588c245b4ae0ee9tomhudson@google.com if (NULL == aa) { 152983a444602ec580a0040713eed588c245b4ae0ee9tomhudson@google.com aa = (uint8_t*)state.fCache->findImage(glyph); 153083a444602ec580a0040713eed588c245b4ae0ee9tomhudson@google.com if (NULL == aa) { 153183a444602ec580a0040713eed588c245b4ae0ee9tomhudson@google.com return; // can't rasterize glyph 15328a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 153383a444602ec580a0040713eed588c245b4ae0ee9tomhudson@google.com } 15348a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 153583a444602ec580a0040713eed588c245b4ae0ee9tomhudson@google.com mask.fRowBytes = glyph.rowBytes(); 153683a444602ec580a0040713eed588c245b4ae0ee9tomhudson@google.com mask.fFormat = static_cast<SkMask::Format>(glyph.fMaskFormat); 153783a444602ec580a0040713eed588c245b4ae0ee9tomhudson@google.com mask.fImage = aa; 15385bdfb331ac650cf464baa96a49e2473ee10a515creed@google.com state.blitMask(mask, *bounds); 15398a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com} 15408a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 15418a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.comstatic void D1G_NoBounder_RgnClip(const SkDraw1Glyph& state, 1542f2b98d67dcb6fcb3120feede9c72016fc7b3ead8reed@android.com SkFixed fx, SkFixed fy, 154383a444602ec580a0040713eed588c245b4ae0ee9tomhudson@google.com const SkGlyph& glyph) { 1544f2b98d67dcb6fcb3120feede9c72016fc7b3ead8reed@android.com int left = SkFixedFloor(fx); 1545f2b98d67dcb6fcb3120feede9c72016fc7b3ead8reed@android.com int top = SkFixedFloor(fy); 15468a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkASSERT(glyph.fWidth > 0 && glyph.fHeight > 0); 154783a444602ec580a0040713eed588c245b4ae0ee9tomhudson@google.com SkASSERT(!state.fClip->isRect()); 154883a444602ec580a0040713eed588c245b4ae0ee9tomhudson@google.com SkASSERT(NULL == state.fBounder); 15498a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 15508a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkMask mask; 15518a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 15528a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com left += glyph.fLeft; 15538a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com top += glyph.fTop; 15548a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 15558a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com mask.fBounds.set(left, top, left + glyph.fWidth, top + glyph.fHeight); 155683a444602ec580a0040713eed588c245b4ae0ee9tomhudson@google.com SkRegion::Cliperator clipper(*state.fClip, mask.fBounds); 155783a444602ec580a0040713eed588c245b4ae0ee9tomhudson@google.com 155883a444602ec580a0040713eed588c245b4ae0ee9tomhudson@google.com if (!clipper.done()) { 155983a444602ec580a0040713eed588c245b4ae0ee9tomhudson@google.com const SkIRect& cr = clipper.rect(); 156083a444602ec580a0040713eed588c245b4ae0ee9tomhudson@google.com const uint8_t* aa = (const uint8_t*)glyph.fImage; 156183a444602ec580a0040713eed588c245b4ae0ee9tomhudson@google.com if (NULL == aa) { 156283a444602ec580a0040713eed588c245b4ae0ee9tomhudson@google.com aa = (uint8_t*)state.fCache->findImage(glyph); 156383a444602ec580a0040713eed588c245b4ae0ee9tomhudson@google.com if (NULL == aa) { 1564fbfcd5602128ec010c82cb733c9cdc0a3254f9f3rmistry@google.com return; 15658a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 156683a444602ec580a0040713eed588c245b4ae0ee9tomhudson@google.com } 156783a444602ec580a0040713eed588c245b4ae0ee9tomhudson@google.com 156883a444602ec580a0040713eed588c245b4ae0ee9tomhudson@google.com mask.fRowBytes = glyph.rowBytes(); 156983a444602ec580a0040713eed588c245b4ae0ee9tomhudson@google.com mask.fFormat = static_cast<SkMask::Format>(glyph.fMaskFormat); 157083a444602ec580a0040713eed588c245b4ae0ee9tomhudson@google.com mask.fImage = (uint8_t*)aa; 157183a444602ec580a0040713eed588c245b4ae0ee9tomhudson@google.com do { 15725bdfb331ac650cf464baa96a49e2473ee10a515creed@google.com state.blitMask(mask, cr); 157383a444602ec580a0040713eed588c245b4ae0ee9tomhudson@google.com clipper.next(); 157483a444602ec580a0040713eed588c245b4ae0ee9tomhudson@google.com } while (!clipper.done()); 157583a444602ec580a0040713eed588c245b4ae0ee9tomhudson@google.com } 15768a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com} 15778a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 15788a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.comstatic void D1G_Bounder(const SkDraw1Glyph& state, 1579f2b98d67dcb6fcb3120feede9c72016fc7b3ead8reed@android.com SkFixed fx, SkFixed fy, 158083a444602ec580a0040713eed588c245b4ae0ee9tomhudson@google.com const SkGlyph& glyph) { 1581f2b98d67dcb6fcb3120feede9c72016fc7b3ead8reed@android.com int left = SkFixedFloor(fx); 1582f2b98d67dcb6fcb3120feede9c72016fc7b3ead8reed@android.com int top = SkFixedFloor(fy); 15838a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkASSERT(glyph.fWidth > 0 && glyph.fHeight > 0); 1584fbfcd5602128ec010c82cb733c9cdc0a3254f9f3rmistry@google.com 15858a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkMask mask; 1586fbfcd5602128ec010c82cb733c9cdc0a3254f9f3rmistry@google.com 15878a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com left += glyph.fLeft; 15888a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com top += glyph.fTop; 1589fbfcd5602128ec010c82cb733c9cdc0a3254f9f3rmistry@google.com 15908a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com mask.fBounds.set(left, top, left + glyph.fWidth, top + glyph.fHeight); 15918a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkRegion::Cliperator clipper(*state.fClip, mask.fBounds); 1592fbfcd5602128ec010c82cb733c9cdc0a3254f9f3rmistry@google.com 159383a444602ec580a0040713eed588c245b4ae0ee9tomhudson@google.com if (!clipper.done()) { 159483a444602ec580a0040713eed588c245b4ae0ee9tomhudson@google.com const SkIRect& cr = clipper.rect(); 159583a444602ec580a0040713eed588c245b4ae0ee9tomhudson@google.com const uint8_t* aa = (const uint8_t*)glyph.fImage; 159683a444602ec580a0040713eed588c245b4ae0ee9tomhudson@google.com if (NULL == aa) { 159783a444602ec580a0040713eed588c245b4ae0ee9tomhudson@google.com aa = (uint8_t*)state.fCache->findImage(glyph); 159883a444602ec580a0040713eed588c245b4ae0ee9tomhudson@google.com if (NULL == aa) { 159983a444602ec580a0040713eed588c245b4ae0ee9tomhudson@google.com return; 16008a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 1601fbfcd5602128ec010c82cb733c9cdc0a3254f9f3rmistry@google.com } 1602fbfcd5602128ec010c82cb733c9cdc0a3254f9f3rmistry@google.com 1603d055c1fde2128514167b315f4d104b177e04a3dereed@android.com // we need to pass the origin, which we approximate with our 1604d055c1fde2128514167b315f4d104b177e04a3dereed@android.com // (unadjusted) left,top coordinates (the caller called fixedfloor) 160583a444602ec580a0040713eed588c245b4ae0ee9tomhudson@google.com if (state.fBounder->doIRectGlyph(cr, 1606d055c1fde2128514167b315f4d104b177e04a3dereed@android.com left - glyph.fLeft, 1607d055c1fde2128514167b315f4d104b177e04a3dereed@android.com top - glyph.fTop, glyph)) { 160883a444602ec580a0040713eed588c245b4ae0ee9tomhudson@google.com mask.fRowBytes = glyph.rowBytes(); 160983a444602ec580a0040713eed588c245b4ae0ee9tomhudson@google.com mask.fFormat = static_cast<SkMask::Format>(glyph.fMaskFormat); 161083a444602ec580a0040713eed588c245b4ae0ee9tomhudson@google.com mask.fImage = (uint8_t*)aa; 161183a444602ec580a0040713eed588c245b4ae0ee9tomhudson@google.com do { 16125bdfb331ac650cf464baa96a49e2473ee10a515creed@google.com state.blitMask(mask, cr); 161383a444602ec580a0040713eed588c245b4ae0ee9tomhudson@google.com clipper.next(); 161483a444602ec580a0040713eed588c245b4ae0ee9tomhudson@google.com } while (!clipper.done()); 161583a444602ec580a0040713eed588c245b4ae0ee9tomhudson@google.com } 161683a444602ec580a0040713eed588c245b4ae0ee9tomhudson@google.com } 16178a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com} 16188a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 1619045e62d715f5ee9b03deb5af3c750f8318096179reed@google.comstatic void D1G_Bounder_AAClip(const SkDraw1Glyph& state, 1620045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com SkFixed fx, SkFixed fy, 1621045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com const SkGlyph& glyph) { 1622045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com int left = SkFixedFloor(fx); 1623045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com int top = SkFixedFloor(fy); 1624045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com SkIRect bounds; 1625045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com bounds.set(left, top, left + glyph.fWidth, top + glyph.fHeight); 1626045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com 1627045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com if (state.fBounder->doIRectGlyph(bounds, left, top, glyph)) { 1628045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com D1G_NoBounder_RectClip(state, fx, fy, glyph); 1629045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com } 1630045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com} 1631045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com 1632fd4236ecc1d5eb1bb48ca9dc33df5e9051c3036ereed@google.comstatic bool hasCustomD1GProc(const SkDraw& draw) { 1633fd4236ecc1d5eb1bb48ca9dc33df5e9051c3036ereed@google.com return draw.fProcs && draw.fProcs->fD1GProc; 1634fd4236ecc1d5eb1bb48ca9dc33df5e9051c3036ereed@google.com} 1635fd4236ecc1d5eb1bb48ca9dc33df5e9051c3036ereed@google.com 1636fd4236ecc1d5eb1bb48ca9dc33df5e9051c3036ereed@google.comstatic bool needsRasterTextBlit(const SkDraw& draw) { 1637fd4236ecc1d5eb1bb48ca9dc33df5e9051c3036ereed@google.com return !hasCustomD1GProc(draw); 1638fd4236ecc1d5eb1bb48ca9dc33df5e9051c3036ereed@google.com} 1639fd4236ecc1d5eb1bb48ca9dc33df5e9051c3036ereed@google.com 16408a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.comSkDraw1Glyph::Proc SkDraw1Glyph::init(const SkDraw* draw, SkBlitter* blitter, 16415bdfb331ac650cf464baa96a49e2473ee10a515creed@google.com SkGlyphCache* cache, const SkPaint& pnt) { 16428a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com fDraw = draw; 16432211b623274e24d0025763cfa855c9eb53d5b900bungeman@google.com fBounder = draw->fBounder; 16442211b623274e24d0025763cfa855c9eb53d5b900bungeman@google.com fBlitter = blitter; 16452211b623274e24d0025763cfa855c9eb53d5b900bungeman@google.com fCache = cache; 16465bdfb331ac650cf464baa96a49e2473ee10a515creed@google.com fPaint = &pnt; 16478a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 16489447103029273a9f8dd7f5997e8af7a1e3ee7488bungeman@google.com if (cache->isSubpixel()) { 16499447103029273a9f8dd7f5997e8af7a1e3ee7488bungeman@google.com fHalfSampleX = fHalfSampleY = (SK_FixedHalf >> SkGlyph::kSubBits); 16509447103029273a9f8dd7f5997e8af7a1e3ee7488bungeman@google.com } else { 16519447103029273a9f8dd7f5997e8af7a1e3ee7488bungeman@google.com fHalfSampleX = fHalfSampleY = SK_FixedHalf; 16529447103029273a9f8dd7f5997e8af7a1e3ee7488bungeman@google.com } 16539447103029273a9f8dd7f5997e8af7a1e3ee7488bungeman@google.com 16541d6ee0bd4db7f3b676209341214641d9af5a965freed@google.com if (hasCustomD1GProc(*draw)) { 1655045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com // todo: fix this assumption about clips w/ custom 1656045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com fClip = draw->fClip; 1657045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com fClipBounds = fClip->getBounds(); 16588a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com return draw->fProcs->fD1GProc; 16598a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 16608a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 1661045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com if (draw->fRC->isBW()) { 1662045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com fAAClip = NULL; 1663045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com fClip = &draw->fRC->bwRgn(); 1664045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com fClipBounds = fClip->getBounds(); 1665045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com if (NULL == fBounder) { 1666045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com if (fClip->isRect()) { 1667045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com return D1G_NoBounder_RectClip; 1668045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com } else { 1669045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com return D1G_NoBounder_RgnClip; 1670045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com } 1671045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com } else { 1672045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com return D1G_Bounder; 1673045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com } 1674045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com } else { // aaclip 1675045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com fAAClip = &draw->fRC->aaRgn(); 1676045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com fClip = NULL; 1677045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com fClipBounds = fAAClip->getBounds(); 1678045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com if (NULL == fBounder) { 16798a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com return D1G_NoBounder_RectClip; 16808a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } else { 1681045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com return D1G_Bounder_AAClip; 16828a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 16838a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 16848a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com} 16858a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 16865bdfb331ac650cf464baa96a49e2473ee10a515creed@google.comvoid SkDraw1Glyph::blitMaskAsSprite(const SkMask& mask) const { 16875bdfb331ac650cf464baa96a49e2473ee10a515creed@google.com SkASSERT(SkMask::kARGB32_Format == mask.fFormat); 16885bdfb331ac650cf464baa96a49e2473ee10a515creed@google.com 16895bdfb331ac650cf464baa96a49e2473ee10a515creed@google.com SkBitmap bm; 16905bdfb331ac650cf464baa96a49e2473ee10a515creed@google.com bm.setConfig(SkBitmap::kARGB_8888_Config, 16915bdfb331ac650cf464baa96a49e2473ee10a515creed@google.com mask.fBounds.width(), mask.fBounds.height(), mask.fRowBytes); 16925bdfb331ac650cf464baa96a49e2473ee10a515creed@google.com bm.setPixels((SkPMColor*)mask.fImage); 16935bdfb331ac650cf464baa96a49e2473ee10a515creed@google.com 16945bdfb331ac650cf464baa96a49e2473ee10a515creed@google.com fDraw->drawSprite(bm, mask.fBounds.x(), mask.fBounds.y(), *fPaint); 16955bdfb331ac650cf464baa96a49e2473ee10a515creed@google.com} 16965bdfb331ac650cf464baa96a49e2473ee10a515creed@google.com 16978a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com/////////////////////////////////////////////////////////////////////////////// 16988a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 16998a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.comvoid SkDraw::drawText(const char text[], size_t byteLength, 17008a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkScalar x, SkScalar y, const SkPaint& paint) const { 17018a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkASSERT(byteLength == 0 || text != NULL); 17028a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 1703f2b98d67dcb6fcb3120feede9c72016fc7b3ead8reed@android.com SkDEBUGCODE(this->validate();) 17048a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 17058a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com // nothing to draw 1706045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com if (text == NULL || byteLength == 0 || fRC->isEmpty()) { 17078a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com return; 17088a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 17098a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 171036d6edac9f3e63d9a5f499d0076550d08b80eacabsalomon@google.com // SkScalarRec doesn't currently have a way of representing hairline stroke and 171136d6edac9f3e63d9a5f499d0076550d08b80eacabsalomon@google.com // will fill if its frame-width is 0. 1712ed43dffbf140cebc0575bed7b4dff1b32430ad21reed@google.com if (ShouldDrawTextAsPaths(paint, *fMatrix)) { 17138a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com this->drawText_asPaths(text, byteLength, x, y, paint); 17148a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com return; 17158a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 17168a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 17178a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkDrawCacheProc glyphCacheProc = paint.getDrawCacheProc(); 17188a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 1719d830d13c27437b4677a4a1abfa866d98dc2d2ab9jvanverth@google.com#if SK_DISTANCEFIELD_FONTS 1720d830d13c27437b4677a4a1abfa866d98dc2d2ab9jvanverth@google.com const SkMatrix* ctm = fMatrix; 1721d830d13c27437b4677a4a1abfa866d98dc2d2ab9jvanverth@google.com const SkPaint* paintRef = &paint; 1722d830d13c27437b4677a4a1abfa866d98dc2d2ab9jvanverth@google.com SkPaint paintCopy; 1723d830d13c27437b4677a4a1abfa866d98dc2d2ab9jvanverth@google.com uint32_t procFlags = fProcs ? fProcs->fFlags : 0; 1724d830d13c27437b4677a4a1abfa866d98dc2d2ab9jvanverth@google.com if (procFlags & SkDrawProcs::kUseScaledGlyphs_Flag) { 1725d830d13c27437b4677a4a1abfa866d98dc2d2ab9jvanverth@google.com paintCopy = paint; 1726d830d13c27437b4677a4a1abfa866d98dc2d2ab9jvanverth@google.com paintCopy.setTextSize(SkDrawProcs::kBaseDFFontSize); 1727d830d13c27437b4677a4a1abfa866d98dc2d2ab9jvanverth@google.com paintCopy.setLCDRenderText(false); 1728d830d13c27437b4677a4a1abfa866d98dc2d2ab9jvanverth@google.com paintRef = &paintCopy; 1729d830d13c27437b4677a4a1abfa866d98dc2d2ab9jvanverth@google.com } 1730d830d13c27437b4677a4a1abfa866d98dc2d2ab9jvanverth@google.com if (procFlags & SkDrawProcs::kSkipBakedGlyphTransform_Flag) { 1731d830d13c27437b4677a4a1abfa866d98dc2d2ab9jvanverth@google.com ctm = NULL; 1732d830d13c27437b4677a4a1abfa866d98dc2d2ab9jvanverth@google.com } 1733d830d13c27437b4677a4a1abfa866d98dc2d2ab9jvanverth@google.com SkAutoGlyphCache autoCache(*paintRef, &fDevice->fLeakyProperties, ctm); 1734d830d13c27437b4677a4a1abfa866d98dc2d2ab9jvanverth@google.com#else 17359447103029273a9f8dd7f5997e8af7a1e3ee7488bungeman@google.com SkAutoGlyphCache autoCache(paint, &fDevice->fLeakyProperties, fMatrix); 1736d830d13c27437b4677a4a1abfa866d98dc2d2ab9jvanverth@google.com#endif 17378a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkGlyphCache* cache = autoCache.getCache(); 1738a76de3d1a92134c3e95ad7fce99234f92fa48268reed@google.com 17398a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com // transform our starting point 1740d830d13c27437b4677a4a1abfa866d98dc2d2ab9jvanverth@google.com#if SK_DISTANCEFIELD_FONTS 174111a253b686d2f6e9def2de8a4507591fcadfe987skia.committer@gmail.com if (!(procFlags & SkDrawProcs::kSkipBakedGlyphTransform_Flag)) 1742d830d13c27437b4677a4a1abfa866d98dc2d2ab9jvanverth@google.com#endif 17438a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com { 17448a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkPoint loc; 17459447103029273a9f8dd7f5997e8af7a1e3ee7488bungeman@google.com fMatrix->mapXY(x, y, &loc); 17468a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com x = loc.fX; 17478a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com y = loc.fY; 17488a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 17498a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 17508a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com // need to measure first 17518a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com if (paint.getTextAlign() != SkPaint::kLeft_Align) { 17528a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkVector stop; 17538a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 17548a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com measure_text(cache, glyphCacheProc, text, byteLength, &stop); 17558a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 17568a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkScalar stopX = stop.fX; 17578a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkScalar stopY = stop.fY; 17588a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 17598a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com if (paint.getTextAlign() == SkPaint::kCenter_Align) { 17608a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com stopX = SkScalarHalf(stopX); 17618a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com stopY = SkScalarHalf(stopY); 17628a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 17638a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com x -= stopX; 17648a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com y -= stopY; 17658a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 1766a76de3d1a92134c3e95ad7fce99234f92fa48268reed@google.com 17678a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com const char* stop = text + byteLength; 17688a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 1769045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com SkAAClipBlitter aaBlitter; 1770045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com SkAutoBlitterChoose blitterChooser; 1771045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com SkBlitter* blitter = NULL; 17721d6ee0bd4db7f3b676209341214641d9af5a965freed@google.com if (needsRasterTextBlit(*this)) { 17739447103029273a9f8dd7f5997e8af7a1e3ee7488bungeman@google.com blitterChooser.choose(*fBitmap, *fMatrix, paint); 1774045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com blitter = blitterChooser.get(); 1775045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com if (fRC->isAA()) { 1776045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com aaBlitter.init(blitter, &fRC->aaRgn()); 1777045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com blitter = &aaBlitter; 1778045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com } 17791d6ee0bd4db7f3b676209341214641d9af5a965freed@google.com } 17801d6ee0bd4db7f3b676209341214641d9af5a965freed@google.com 17818a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkAutoKern autokern; 178252c748b1691f02f90b27c35bc05074fcef709e66bungeman@google.com SkDraw1Glyph d1g; 17835bdfb331ac650cf464baa96a49e2473ee10a515creed@google.com SkDraw1Glyph::Proc proc = d1g.init(this, blitter, cache, paint); 17848a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 17859447103029273a9f8dd7f5997e8af7a1e3ee7488bungeman@google.com SkFixed fxMask = ~0; 17869447103029273a9f8dd7f5997e8af7a1e3ee7488bungeman@google.com SkFixed fyMask = ~0; 17879447103029273a9f8dd7f5997e8af7a1e3ee7488bungeman@google.com if (cache->isSubpixel()) { 17889447103029273a9f8dd7f5997e8af7a1e3ee7488bungeman@google.com SkAxisAlignment baseline = SkComputeAxisAlignmentForHText(*fMatrix); 17899447103029273a9f8dd7f5997e8af7a1e3ee7488bungeman@google.com if (kX_SkAxisAlignment == baseline) { 17909447103029273a9f8dd7f5997e8af7a1e3ee7488bungeman@google.com fyMask = 0; 17919447103029273a9f8dd7f5997e8af7a1e3ee7488bungeman@google.com d1g.fHalfSampleY = SK_FixedHalf; 17929447103029273a9f8dd7f5997e8af7a1e3ee7488bungeman@google.com } else if (kY_SkAxisAlignment == baseline) { 17939447103029273a9f8dd7f5997e8af7a1e3ee7488bungeman@google.com fxMask = 0; 17949447103029273a9f8dd7f5997e8af7a1e3ee7488bungeman@google.com d1g.fHalfSampleX = SK_FixedHalf; 17959447103029273a9f8dd7f5997e8af7a1e3ee7488bungeman@google.com } 17969447103029273a9f8dd7f5997e8af7a1e3ee7488bungeman@google.com } 17979447103029273a9f8dd7f5997e8af7a1e3ee7488bungeman@google.com 17989447103029273a9f8dd7f5997e8af7a1e3ee7488bungeman@google.com SkFixed fx = SkScalarToFixed(x) + d1g.fHalfSampleX; 17999447103029273a9f8dd7f5997e8af7a1e3ee7488bungeman@google.com SkFixed fy = SkScalarToFixed(y) + d1g.fHalfSampleY; 18009447103029273a9f8dd7f5997e8af7a1e3ee7488bungeman@google.com 1801d830d13c27437b4677a4a1abfa866d98dc2d2ab9jvanverth@google.com#if SK_DISTANCEFIELD_FONTS 1802d830d13c27437b4677a4a1abfa866d98dc2d2ab9jvanverth@google.com SkFixed fixedScale; 1803d830d13c27437b4677a4a1abfa866d98dc2d2ab9jvanverth@google.com if (procFlags & SkDrawProcs::kUseScaledGlyphs_Flag) { 1804d830d13c27437b4677a4a1abfa866d98dc2d2ab9jvanverth@google.com fixedScale = SkScalarToFixed(paint.getTextSize()/(float)SkDrawProcs::kBaseDFFontSize); 1805d830d13c27437b4677a4a1abfa866d98dc2d2ab9jvanverth@google.com } 1806d830d13c27437b4677a4a1abfa866d98dc2d2ab9jvanverth@google.com#endif 18078a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com while (text < stop) { 18082211b623274e24d0025763cfa855c9eb53d5b900bungeman@google.com const SkGlyph& glyph = glyphCacheProc(cache, &text, fx & fxMask, fy & fyMask); 18098a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 1810d830d13c27437b4677a4a1abfa866d98dc2d2ab9jvanverth@google.com#if SK_DISTANCEFIELD_FONTS 1811d830d13c27437b4677a4a1abfa866d98dc2d2ab9jvanverth@google.com if (procFlags & SkDrawProcs::kUseScaledGlyphs_Flag) { 1812d830d13c27437b4677a4a1abfa866d98dc2d2ab9jvanverth@google.com fx += SkFixedMul_portable(autokern.adjust(glyph), fixedScale); 1813d830d13c27437b4677a4a1abfa866d98dc2d2ab9jvanverth@google.com } else { 1814d830d13c27437b4677a4a1abfa866d98dc2d2ab9jvanverth@google.com fx += autokern.adjust(glyph); 1815d830d13c27437b4677a4a1abfa866d98dc2d2ab9jvanverth@google.com } 1816d830d13c27437b4677a4a1abfa866d98dc2d2ab9jvanverth@google.com#else 18178a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com fx += autokern.adjust(glyph); 1818d830d13c27437b4677a4a1abfa866d98dc2d2ab9jvanverth@google.com#endif 18198a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 18208a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com if (glyph.fWidth) { 182152c748b1691f02f90b27c35bc05074fcef709e66bungeman@google.com proc(d1g, fx, fy, glyph); 18228a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 1823d830d13c27437b4677a4a1abfa866d98dc2d2ab9jvanverth@google.com 1824d830d13c27437b4677a4a1abfa866d98dc2d2ab9jvanverth@google.com#if SK_DISTANCEFIELD_FONTS 1825d830d13c27437b4677a4a1abfa866d98dc2d2ab9jvanverth@google.com if (procFlags & SkDrawProcs::kUseScaledGlyphs_Flag) { 1826d830d13c27437b4677a4a1abfa866d98dc2d2ab9jvanverth@google.com fx += SkFixedMul_portable(glyph.fAdvanceX, fixedScale); 1827d830d13c27437b4677a4a1abfa866d98dc2d2ab9jvanverth@google.com fy += SkFixedMul_portable(glyph.fAdvanceY, fixedScale); 1828d830d13c27437b4677a4a1abfa866d98dc2d2ab9jvanverth@google.com } else { 1829d830d13c27437b4677a4a1abfa866d98dc2d2ab9jvanverth@google.com fx += glyph.fAdvanceX; 1830d830d13c27437b4677a4a1abfa866d98dc2d2ab9jvanverth@google.com fy += glyph.fAdvanceY; 1831d830d13c27437b4677a4a1abfa866d98dc2d2ab9jvanverth@google.com } 1832d830d13c27437b4677a4a1abfa866d98dc2d2ab9jvanverth@google.com#else 18338a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com fx += glyph.fAdvanceX; 18348a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com fy += glyph.fAdvanceY; 1835d830d13c27437b4677a4a1abfa866d98dc2d2ab9jvanverth@google.com#endif 18368a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 18378a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com} 18388a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 18398a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com// last parameter is interpreted as SkFixed [x, y] 18408a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com// return the fixed position, which may be rounded or not by the caller 18418a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com// e.g. subpixel doesn't round 18428a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.comtypedef void (*AlignProc)(const SkPoint&, const SkGlyph&, SkIPoint*); 18438a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 1844cfd90d6073baef9841dcb6e7b25d244f06ceeeaabungeman@google.comstatic void leftAlignProc(const SkPoint& loc, const SkGlyph& glyph, SkIPoint* dst) { 18458a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com dst->set(SkScalarToFixed(loc.fX), SkScalarToFixed(loc.fY)); 18468a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com} 18478a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 1848cfd90d6073baef9841dcb6e7b25d244f06ceeeaabungeman@google.comstatic void centerAlignProc(const SkPoint& loc, const SkGlyph& glyph, SkIPoint* dst) { 18498a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com dst->set(SkScalarToFixed(loc.fX) - (glyph.fAdvanceX >> 1), 18508a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkScalarToFixed(loc.fY) - (glyph.fAdvanceY >> 1)); 18518a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com} 18528a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 1853cfd90d6073baef9841dcb6e7b25d244f06ceeeaabungeman@google.comstatic void rightAlignProc(const SkPoint& loc, const SkGlyph& glyph, SkIPoint* dst) { 18548a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com dst->set(SkScalarToFixed(loc.fX) - glyph.fAdvanceX, 18558a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkScalarToFixed(loc.fY) - glyph.fAdvanceY); 18568a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com} 18578a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 18588a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.comstatic AlignProc pick_align_proc(SkPaint::Align align) { 18598a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com static const AlignProc gProcs[] = { 18608a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com leftAlignProc, centerAlignProc, rightAlignProc 18618a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com }; 1862a76de3d1a92134c3e95ad7fce99234f92fa48268reed@google.com 18638a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkASSERT((unsigned)align < SK_ARRAY_COUNT(gProcs)); 18648a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 18658a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com return gProcs[align]; 18668a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com} 18678a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 1868cfd90d6073baef9841dcb6e7b25d244f06ceeeaabungeman@google.comtypedef void (*AlignProc_scalar)(const SkPoint&, const SkGlyph&, SkPoint*); 1869cfd90d6073baef9841dcb6e7b25d244f06ceeeaabungeman@google.com 1870cfd90d6073baef9841dcb6e7b25d244f06ceeeaabungeman@google.comstatic void leftAlignProc_scalar(const SkPoint& loc, const SkGlyph& glyph, SkPoint* dst) { 1871cfd90d6073baef9841dcb6e7b25d244f06ceeeaabungeman@google.com dst->set(loc.fX, loc.fY); 1872cfd90d6073baef9841dcb6e7b25d244f06ceeeaabungeman@google.com} 1873cfd90d6073baef9841dcb6e7b25d244f06ceeeaabungeman@google.com 1874cfd90d6073baef9841dcb6e7b25d244f06ceeeaabungeman@google.comstatic void centerAlignProc_scalar(const SkPoint& loc, const SkGlyph& glyph, SkPoint* dst) { 1875cfd90d6073baef9841dcb6e7b25d244f06ceeeaabungeman@google.com dst->set(loc.fX - SkFixedToScalar(glyph.fAdvanceX >> 1), 1876cfd90d6073baef9841dcb6e7b25d244f06ceeeaabungeman@google.com loc.fY - SkFixedToScalar(glyph.fAdvanceY >> 1)); 1877cfd90d6073baef9841dcb6e7b25d244f06ceeeaabungeman@google.com} 1878cfd90d6073baef9841dcb6e7b25d244f06ceeeaabungeman@google.com 1879cfd90d6073baef9841dcb6e7b25d244f06ceeeaabungeman@google.comstatic void rightAlignProc_scalar(const SkPoint& loc, const SkGlyph& glyph, SkPoint* dst) { 1880cfd90d6073baef9841dcb6e7b25d244f06ceeeaabungeman@google.com dst->set(loc.fX - SkFixedToScalar(glyph.fAdvanceX), 1881cfd90d6073baef9841dcb6e7b25d244f06ceeeaabungeman@google.com loc.fY - SkFixedToScalar(glyph.fAdvanceY)); 1882cfd90d6073baef9841dcb6e7b25d244f06ceeeaabungeman@google.com} 1883cfd90d6073baef9841dcb6e7b25d244f06ceeeaabungeman@google.com 1884cfd90d6073baef9841dcb6e7b25d244f06ceeeaabungeman@google.comstatic AlignProc_scalar pick_align_proc_scalar(SkPaint::Align align) { 1885cfd90d6073baef9841dcb6e7b25d244f06ceeeaabungeman@google.com static const AlignProc_scalar gProcs[] = { 1886cfd90d6073baef9841dcb6e7b25d244f06ceeeaabungeman@google.com leftAlignProc_scalar, centerAlignProc_scalar, rightAlignProc_scalar 1887cfd90d6073baef9841dcb6e7b25d244f06ceeeaabungeman@google.com }; 1888cfd90d6073baef9841dcb6e7b25d244f06ceeeaabungeman@google.com 1889cfd90d6073baef9841dcb6e7b25d244f06ceeeaabungeman@google.com SkASSERT((unsigned)align < SK_ARRAY_COUNT(gProcs)); 1890cfd90d6073baef9841dcb6e7b25d244f06ceeeaabungeman@google.com 1891cfd90d6073baef9841dcb6e7b25d244f06ceeeaabungeman@google.com return gProcs[align]; 1892cfd90d6073baef9841dcb6e7b25d244f06ceeeaabungeman@google.com} 1893cfd90d6073baef9841dcb6e7b25d244f06ceeeaabungeman@google.com 18948a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.comclass TextMapState { 18958a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.compublic: 18968a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com mutable SkPoint fLoc; 1897a76de3d1a92134c3e95ad7fce99234f92fa48268reed@google.com 18988a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com TextMapState(const SkMatrix& matrix, SkScalar y) 18998a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com : fMatrix(matrix), fProc(matrix.getMapXYProc()), fY(y) {} 19008a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 19018a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com typedef void (*Proc)(const TextMapState&, const SkScalar pos[]); 1902a76de3d1a92134c3e95ad7fce99234f92fa48268reed@google.com 19038a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com Proc pickProc(int scalarsPerPosition); 1904a76de3d1a92134c3e95ad7fce99234f92fa48268reed@google.com 19058a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.comprivate: 19068a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com const SkMatrix& fMatrix; 19078a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkMatrix::MapXYProc fProc; 19088a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkScalar fY; // ignored by MapXYProc 19098a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com // these are only used by Only... procs 19108a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkScalar fScaleX, fTransX, fTransformedY; 19118a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 19128a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com static void MapXProc(const TextMapState& state, const SkScalar pos[]) { 19138a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com state.fProc(state.fMatrix, *pos, state.fY, &state.fLoc); 19148a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 1915a76de3d1a92134c3e95ad7fce99234f92fa48268reed@google.com 19168a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com static void MapXYProc(const TextMapState& state, const SkScalar pos[]) { 19178a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com state.fProc(state.fMatrix, pos[0], pos[1], &state.fLoc); 19188a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 1919a76de3d1a92134c3e95ad7fce99234f92fa48268reed@google.com 19208a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com static void MapOnlyScaleXProc(const TextMapState& state, 19218a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com const SkScalar pos[]) { 19228a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com state.fLoc.set(SkScalarMul(state.fScaleX, *pos) + state.fTransX, 19238a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com state.fTransformedY); 19248a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 1925a76de3d1a92134c3e95ad7fce99234f92fa48268reed@google.com 19268a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com static void MapOnlyTransXProc(const TextMapState& state, 19278a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com const SkScalar pos[]) { 19288a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com state.fLoc.set(*pos + state.fTransX, state.fTransformedY); 19298a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 19308a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com}; 19318a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 19328a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.comTextMapState::Proc TextMapState::pickProc(int scalarsPerPosition) { 19338a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkASSERT(1 == scalarsPerPosition || 2 == scalarsPerPosition); 1934a76de3d1a92134c3e95ad7fce99234f92fa48268reed@google.com 19358a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com if (1 == scalarsPerPosition) { 19368a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com unsigned mtype = fMatrix.getType(); 19378a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com if (mtype & (SkMatrix::kAffine_Mask | SkMatrix::kPerspective_Mask)) { 19388a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com return MapXProc; 19398a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } else { 19408a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com fScaleX = fMatrix.getScaleX(); 19418a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com fTransX = fMatrix.getTranslateX(); 19428a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com fTransformedY = SkScalarMul(fY, fMatrix.getScaleY()) + 19438a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com fMatrix.getTranslateY(); 19448a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com return (mtype & SkMatrix::kScale_Mask) ? 19458a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com MapOnlyScaleXProc : MapOnlyTransXProc; 19468a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 19478a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } else { 19488a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com return MapXYProc; 19498a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 19508a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com} 19518a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 19528a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com////////////////////////////////////////////////////////////////////////////// 19538a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 1954ed43dffbf140cebc0575bed7b4dff1b32430ad21reed@google.comvoid SkDraw::drawPosText_asPaths(const char text[], size_t byteLength, 1955ed43dffbf140cebc0575bed7b4dff1b32430ad21reed@google.com const SkScalar pos[], SkScalar constY, 1956ed43dffbf140cebc0575bed7b4dff1b32430ad21reed@google.com int scalarsPerPosition, 1957ed43dffbf140cebc0575bed7b4dff1b32430ad21reed@google.com const SkPaint& origPaint) const { 1958ed43dffbf140cebc0575bed7b4dff1b32430ad21reed@google.com // setup our std paint, in hopes of getting hits in the cache 1959ed43dffbf140cebc0575bed7b4dff1b32430ad21reed@google.com SkPaint paint(origPaint); 1960ed43dffbf140cebc0575bed7b4dff1b32430ad21reed@google.com SkScalar matrixScale = paint.setupForAsPaths(); 1961ed43dffbf140cebc0575bed7b4dff1b32430ad21reed@google.com 19625a64902ee92847f53dfc5b211da19d074179be64reed@google.com SkMatrix matrix; 19635a64902ee92847f53dfc5b211da19d074179be64reed@google.com matrix.setScale(matrixScale, matrixScale); 19648f6ef4010f6835c5ce9ede180e50a6a58512a81eskia.committer@gmail.com 1965ed43dffbf140cebc0575bed7b4dff1b32430ad21reed@google.com SkDrawCacheProc glyphCacheProc = paint.getDrawCacheProc(); 1966ed43dffbf140cebc0575bed7b4dff1b32430ad21reed@google.com SkAutoGlyphCache autoCache(paint, NULL, NULL); 1967ed43dffbf140cebc0575bed7b4dff1b32430ad21reed@google.com SkGlyphCache* cache = autoCache.getCache(); 1968ed43dffbf140cebc0575bed7b4dff1b32430ad21reed@google.com 1969ed43dffbf140cebc0575bed7b4dff1b32430ad21reed@google.com const char* stop = text + byteLength; 1970cfd90d6073baef9841dcb6e7b25d244f06ceeeaabungeman@google.com AlignProc_scalar alignProc = pick_align_proc_scalar(paint.getTextAlign()); 1971ed43dffbf140cebc0575bed7b4dff1b32430ad21reed@google.com TextMapState tms(SkMatrix::I(), constY); 1972ed43dffbf140cebc0575bed7b4dff1b32430ad21reed@google.com TextMapState::Proc tmsProc = tms.pickProc(scalarsPerPosition); 19738f6ef4010f6835c5ce9ede180e50a6a58512a81eskia.committer@gmail.com 1974ed43dffbf140cebc0575bed7b4dff1b32430ad21reed@google.com while (text < stop) { 1975ed43dffbf140cebc0575bed7b4dff1b32430ad21reed@google.com const SkGlyph& glyph = glyphCacheProc(cache, &text, 0, 0); 1976ed43dffbf140cebc0575bed7b4dff1b32430ad21reed@google.com if (glyph.fWidth) { 1977ed43dffbf140cebc0575bed7b4dff1b32430ad21reed@google.com const SkPath* path = cache->findPath(glyph); 1978ed43dffbf140cebc0575bed7b4dff1b32430ad21reed@google.com if (path) { 1979ed43dffbf140cebc0575bed7b4dff1b32430ad21reed@google.com tmsProc(tms, pos); 1980cfd90d6073baef9841dcb6e7b25d244f06ceeeaabungeman@google.com SkPoint loc; 1981cfd90d6073baef9841dcb6e7b25d244f06ceeeaabungeman@google.com alignProc(tms.fLoc, glyph, &loc); 19828f6ef4010f6835c5ce9ede180e50a6a58512a81eskia.committer@gmail.com 1983cfd90d6073baef9841dcb6e7b25d244f06ceeeaabungeman@google.com matrix[SkMatrix::kMTransX] = loc.fX; 1984cfd90d6073baef9841dcb6e7b25d244f06ceeeaabungeman@google.com matrix[SkMatrix::kMTransY] = loc.fY; 19855a64902ee92847f53dfc5b211da19d074179be64reed@google.com if (fDevice) { 19865a64902ee92847f53dfc5b211da19d074179be64reed@google.com fDevice->drawPath(*this, *path, paint, &matrix, false); 19875a64902ee92847f53dfc5b211da19d074179be64reed@google.com } else { 19885a64902ee92847f53dfc5b211da19d074179be64reed@google.com this->drawPath(*path, paint, &matrix, false); 19895a64902ee92847f53dfc5b211da19d074179be64reed@google.com } 1990ed43dffbf140cebc0575bed7b4dff1b32430ad21reed@google.com } 1991ed43dffbf140cebc0575bed7b4dff1b32430ad21reed@google.com } 1992ed43dffbf140cebc0575bed7b4dff1b32430ad21reed@google.com pos += scalarsPerPosition; 1993ed43dffbf140cebc0575bed7b4dff1b32430ad21reed@google.com } 1994ed43dffbf140cebc0575bed7b4dff1b32430ad21reed@google.com} 1995ed43dffbf140cebc0575bed7b4dff1b32430ad21reed@google.com 19968a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.comvoid SkDraw::drawPosText(const char text[], size_t byteLength, 19978a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com const SkScalar pos[], SkScalar constY, 19988a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com int scalarsPerPosition, const SkPaint& paint) const { 19998a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkASSERT(byteLength == 0 || text != NULL); 20008a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkASSERT(1 == scalarsPerPosition || 2 == scalarsPerPosition); 20018a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 2002f2b98d67dcb6fcb3120feede9c72016fc7b3ead8reed@android.com SkDEBUGCODE(this->validate();) 20038a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 20048a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com // nothing to draw 2005045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com if (text == NULL || byteLength == 0 || fRC->isEmpty()) { 20068a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com return; 20078a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 20088a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 2009ed43dffbf140cebc0575bed7b4dff1b32430ad21reed@google.com if (ShouldDrawTextAsPaths(paint, *fMatrix)) { 2010ed43dffbf140cebc0575bed7b4dff1b32430ad21reed@google.com this->drawPosText_asPaths(text, byteLength, pos, constY, 2011ed43dffbf140cebc0575bed7b4dff1b32430ad21reed@google.com scalarsPerPosition, paint); 20128a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com return; 20138a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 20148a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 20158a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkDrawCacheProc glyphCacheProc = paint.getDrawCacheProc(); 2016d830d13c27437b4677a4a1abfa866d98dc2d2ab9jvanverth@google.com#if SK_DISTANCEFIELD_FONTS 2017d830d13c27437b4677a4a1abfa866d98dc2d2ab9jvanverth@google.com const SkMatrix* ctm = fMatrix; 2018d830d13c27437b4677a4a1abfa866d98dc2d2ab9jvanverth@google.com const SkPaint* paintRef = &paint; 2019d830d13c27437b4677a4a1abfa866d98dc2d2ab9jvanverth@google.com SkPaint paintCopy; 2020d830d13c27437b4677a4a1abfa866d98dc2d2ab9jvanverth@google.com uint32_t procFlags = fProcs ? fProcs->fFlags : 0; 2021d830d13c27437b4677a4a1abfa866d98dc2d2ab9jvanverth@google.com if (procFlags & SkDrawProcs::kUseScaledGlyphs_Flag) { 2022d830d13c27437b4677a4a1abfa866d98dc2d2ab9jvanverth@google.com paintCopy = paint; 2023d830d13c27437b4677a4a1abfa866d98dc2d2ab9jvanverth@google.com paintCopy.setTextSize(SkDrawProcs::kBaseDFFontSize); 2024d830d13c27437b4677a4a1abfa866d98dc2d2ab9jvanverth@google.com paintRef = &paintCopy; 2025d830d13c27437b4677a4a1abfa866d98dc2d2ab9jvanverth@google.com } 2026d830d13c27437b4677a4a1abfa866d98dc2d2ab9jvanverth@google.com if (procFlags & SkDrawProcs::kSkipBakedGlyphTransform_Flag) { 202775a22954453f4c0e3c0cb2ec0a46f32a473622f9commit-bot@chromium.org ctm = &SkMatrix::I(); 2028d830d13c27437b4677a4a1abfa866d98dc2d2ab9jvanverth@google.com } 2029d830d13c27437b4677a4a1abfa866d98dc2d2ab9jvanverth@google.com SkAutoGlyphCache autoCache(*paintRef, &fDevice->fLeakyProperties, ctm); 2030d830d13c27437b4677a4a1abfa866d98dc2d2ab9jvanverth@google.com#else 20319447103029273a9f8dd7f5997e8af7a1e3ee7488bungeman@google.com SkAutoGlyphCache autoCache(paint, &fDevice->fLeakyProperties, fMatrix); 2032d830d13c27437b4677a4a1abfa866d98dc2d2ab9jvanverth@google.com#endif 20338a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkGlyphCache* cache = autoCache.getCache(); 2034a76de3d1a92134c3e95ad7fce99234f92fa48268reed@google.com 2035045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com SkAAClipBlitterWrapper wrapper; 2036045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com SkAutoBlitterChoose blitterChooser; 2037045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com SkBlitter* blitter = NULL; 20381d6ee0bd4db7f3b676209341214641d9af5a965freed@google.com if (needsRasterTextBlit(*this)) { 20399447103029273a9f8dd7f5997e8af7a1e3ee7488bungeman@google.com blitterChooser.choose(*fBitmap, *fMatrix, paint); 2040045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com blitter = blitterChooser.get(); 2041045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com if (fRC->isAA()) { 2042045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com wrapper.init(*fRC, blitter); 2043045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com blitter = wrapper.getBlitter(); 2044045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com } 20451d6ee0bd4db7f3b676209341214641d9af5a965freed@google.com } 2046fbfcd5602128ec010c82cb733c9cdc0a3254f9f3rmistry@google.com 20478a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com const char* stop = text + byteLength; 20488a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com AlignProc alignProc = pick_align_proc(paint.getTextAlign()); 20492211b623274e24d0025763cfa855c9eb53d5b900bungeman@google.com SkDraw1Glyph d1g; 20505bdfb331ac650cf464baa96a49e2473ee10a515creed@google.com SkDraw1Glyph::Proc proc = d1g.init(this, blitter, cache, paint); 205175a22954453f4c0e3c0cb2ec0a46f32a473622f9commit-bot@chromium.org#if SK_DISTANCEFIELD_FONTS 205275a22954453f4c0e3c0cb2ec0a46f32a473622f9commit-bot@chromium.org TextMapState tms(*ctm, constY); 205375a22954453f4c0e3c0cb2ec0a46f32a473622f9commit-bot@chromium.org#else 20549447103029273a9f8dd7f5997e8af7a1e3ee7488bungeman@google.com TextMapState tms(*fMatrix, constY); 205575a22954453f4c0e3c0cb2ec0a46f32a473622f9commit-bot@chromium.org#endif 20568a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com TextMapState::Proc tmsProc = tms.pickProc(scalarsPerPosition); 20578a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 20582211b623274e24d0025763cfa855c9eb53d5b900bungeman@google.com if (cache->isSubpixel()) { 20598a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com // maybe we should skip the rounding if linearText is set 20609447103029273a9f8dd7f5997e8af7a1e3ee7488bungeman@google.com SkAxisAlignment baseline = SkComputeAxisAlignmentForHText(*fMatrix); 20619447103029273a9f8dd7f5997e8af7a1e3ee7488bungeman@google.com 20629447103029273a9f8dd7f5997e8af7a1e3ee7488bungeman@google.com SkFixed fxMask = ~0; 20639447103029273a9f8dd7f5997e8af7a1e3ee7488bungeman@google.com SkFixed fyMask = ~0; 20649447103029273a9f8dd7f5997e8af7a1e3ee7488bungeman@google.com if (kX_SkAxisAlignment == baseline) { 20659447103029273a9f8dd7f5997e8af7a1e3ee7488bungeman@google.com fyMask = 0; 20669447103029273a9f8dd7f5997e8af7a1e3ee7488bungeman@google.com#ifndef SK_IGNORE_SUBPIXEL_AXIS_ALIGN_FIX 20679447103029273a9f8dd7f5997e8af7a1e3ee7488bungeman@google.com d1g.fHalfSampleY = SK_FixedHalf; 20689447103029273a9f8dd7f5997e8af7a1e3ee7488bungeman@google.com#endif 20699447103029273a9f8dd7f5997e8af7a1e3ee7488bungeman@google.com } else if (kY_SkAxisAlignment == baseline) { 20709447103029273a9f8dd7f5997e8af7a1e3ee7488bungeman@google.com fxMask = 0; 20719447103029273a9f8dd7f5997e8af7a1e3ee7488bungeman@google.com#ifndef SK_IGNORE_SUBPIXEL_AXIS_ALIGN_FIX 20729447103029273a9f8dd7f5997e8af7a1e3ee7488bungeman@google.com d1g.fHalfSampleX = SK_FixedHalf; 20739447103029273a9f8dd7f5997e8af7a1e3ee7488bungeman@google.com#endif 20749447103029273a9f8dd7f5997e8af7a1e3ee7488bungeman@google.com } 20758a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 20768a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com if (SkPaint::kLeft_Align == paint.getTextAlign()) { 20778a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com while (text < stop) { 2078d830d13c27437b4677a4a1abfa866d98dc2d2ab9jvanverth@google.com#if SK_DISTANCEFIELD_FONTS 2079d830d13c27437b4677a4a1abfa866d98dc2d2ab9jvanverth@google.com if (procFlags & SkDrawProcs::kSkipBakedGlyphTransform_Flag) { 2080d830d13c27437b4677a4a1abfa866d98dc2d2ab9jvanverth@google.com tms.fLoc.fX = *pos; 2081d830d13c27437b4677a4a1abfa866d98dc2d2ab9jvanverth@google.com tms.fLoc.fY = *(pos+1); 2082d830d13c27437b4677a4a1abfa866d98dc2d2ab9jvanverth@google.com } else { 2083d830d13c27437b4677a4a1abfa866d98dc2d2ab9jvanverth@google.com tmsProc(tms, pos); 2084d830d13c27437b4677a4a1abfa866d98dc2d2ab9jvanverth@google.com } 2085d830d13c27437b4677a4a1abfa866d98dc2d2ab9jvanverth@google.com#else 20868a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com tmsProc(tms, pos); 2087d830d13c27437b4677a4a1abfa866d98dc2d2ab9jvanverth@google.com#endif 20889447103029273a9f8dd7f5997e8af7a1e3ee7488bungeman@google.com SkFixed fx = SkScalarToFixed(tms.fLoc.fX) + d1g.fHalfSampleX; 20899447103029273a9f8dd7f5997e8af7a1e3ee7488bungeman@google.com SkFixed fy = SkScalarToFixed(tms.fLoc.fY) + d1g.fHalfSampleY; 2090a76de3d1a92134c3e95ad7fce99234f92fa48268reed@google.com 2091f2b98d67dcb6fcb3120feede9c72016fc7b3ead8reed@android.com const SkGlyph& glyph = glyphCacheProc(cache, &text, 2092f2b98d67dcb6fcb3120feede9c72016fc7b3ead8reed@android.com fx & fxMask, fy & fyMask); 2093a76de3d1a92134c3e95ad7fce99234f92fa48268reed@google.com 20948a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com if (glyph.fWidth) { 2095f2b98d67dcb6fcb3120feede9c72016fc7b3ead8reed@android.com proc(d1g, fx, fy, glyph); 20968a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 20978a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com pos += scalarsPerPosition; 20988a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 20998a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } else { 21008a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com while (text < stop) { 21019330cfe851b14b8985acc14caa3dc5ad20b0b2a8bungeman@google.com const char* currentText = text; 21029447103029273a9f8dd7f5997e8af7a1e3ee7488bungeman@google.com const SkGlyph& metricGlyph = glyphCacheProc(cache, &text, 0, 0); 2103a76de3d1a92134c3e95ad7fce99234f92fa48268reed@google.com 21049447103029273a9f8dd7f5997e8af7a1e3ee7488bungeman@google.com if (metricGlyph.fWidth) { 21059447103029273a9f8dd7f5997e8af7a1e3ee7488bungeman@google.com SkDEBUGCODE(SkFixed prevAdvX = metricGlyph.fAdvanceX;) 21069447103029273a9f8dd7f5997e8af7a1e3ee7488bungeman@google.com SkDEBUGCODE(SkFixed prevAdvY = metricGlyph.fAdvanceY;) 21078a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 21088a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com tmsProc(tms, pos); 21099447103029273a9f8dd7f5997e8af7a1e3ee7488bungeman@google.com SkIPoint fixedLoc; 21109447103029273a9f8dd7f5997e8af7a1e3ee7488bungeman@google.com alignProc(tms.fLoc, metricGlyph, &fixedLoc); 2111a76de3d1a92134c3e95ad7fce99234f92fa48268reed@google.com 21129447103029273a9f8dd7f5997e8af7a1e3ee7488bungeman@google.com SkFixed fx = fixedLoc.fX + d1g.fHalfSampleX; 21139447103029273a9f8dd7f5997e8af7a1e3ee7488bungeman@google.com SkFixed fy = fixedLoc.fY + d1g.fHalfSampleY; 2114a76de3d1a92134c3e95ad7fce99234f92fa48268reed@google.com 21158a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com // have to call again, now that we've been "aligned" 21169447103029273a9f8dd7f5997e8af7a1e3ee7488bungeman@google.com const SkGlyph& glyph = glyphCacheProc(cache, ¤tText, 21179447103029273a9f8dd7f5997e8af7a1e3ee7488bungeman@google.com fx & fxMask, fy & fyMask); 21189447103029273a9f8dd7f5997e8af7a1e3ee7488bungeman@google.com // the assumption is that the metrics haven't changed 21199447103029273a9f8dd7f5997e8af7a1e3ee7488bungeman@google.com SkASSERT(prevAdvX == glyph.fAdvanceX); 21209447103029273a9f8dd7f5997e8af7a1e3ee7488bungeman@google.com SkASSERT(prevAdvY == glyph.fAdvanceY); 21219447103029273a9f8dd7f5997e8af7a1e3ee7488bungeman@google.com SkASSERT(glyph.fWidth); 2122a76de3d1a92134c3e95ad7fce99234f92fa48268reed@google.com 21239447103029273a9f8dd7f5997e8af7a1e3ee7488bungeman@google.com proc(d1g, fx, fy, glyph); 21248a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 21258a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com pos += scalarsPerPosition; 21268a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 21278a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 21288a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } else { // not subpixel 2129aeb07864052fde0acba0ae1a42a01db3407f1f6ereed@google.com if (SkPaint::kLeft_Align == paint.getTextAlign()) { 2130aeb07864052fde0acba0ae1a42a01db3407f1f6ereed@google.com while (text < stop) { 2131aeb07864052fde0acba0ae1a42a01db3407f1f6ereed@google.com // the last 2 parameters are ignored 2132aeb07864052fde0acba0ae1a42a01db3407f1f6ereed@google.com const SkGlyph& glyph = glyphCacheProc(cache, &text, 0, 0); 2133fbfcd5602128ec010c82cb733c9cdc0a3254f9f3rmistry@google.com 2134aeb07864052fde0acba0ae1a42a01db3407f1f6ereed@google.com if (glyph.fWidth) { 2135aeb07864052fde0acba0ae1a42a01db3407f1f6ereed@google.com tmsProc(tms, pos); 2136a76de3d1a92134c3e95ad7fce99234f92fa48268reed@google.com 2137aeb07864052fde0acba0ae1a42a01db3407f1f6ereed@google.com proc(d1g, 21389447103029273a9f8dd7f5997e8af7a1e3ee7488bungeman@google.com SkScalarToFixed(tms.fLoc.fX) + SK_FixedHalf, //d1g.fHalfSampleX, 21399447103029273a9f8dd7f5997e8af7a1e3ee7488bungeman@google.com SkScalarToFixed(tms.fLoc.fY) + SK_FixedHalf, //d1g.fHalfSampleY, 2140aeb07864052fde0acba0ae1a42a01db3407f1f6ereed@google.com glyph); 2141aeb07864052fde0acba0ae1a42a01db3407f1f6ereed@google.com } 2142aeb07864052fde0acba0ae1a42a01db3407f1f6ereed@google.com pos += scalarsPerPosition; 2143aeb07864052fde0acba0ae1a42a01db3407f1f6ereed@google.com } 2144aeb07864052fde0acba0ae1a42a01db3407f1f6ereed@google.com } else { 2145aeb07864052fde0acba0ae1a42a01db3407f1f6ereed@google.com while (text < stop) { 2146aeb07864052fde0acba0ae1a42a01db3407f1f6ereed@google.com // the last 2 parameters are ignored 2147aeb07864052fde0acba0ae1a42a01db3407f1f6ereed@google.com const SkGlyph& glyph = glyphCacheProc(cache, &text, 0, 0); 2148a76de3d1a92134c3e95ad7fce99234f92fa48268reed@google.com 2149aeb07864052fde0acba0ae1a42a01db3407f1f6ereed@google.com if (glyph.fWidth) { 2150aeb07864052fde0acba0ae1a42a01db3407f1f6ereed@google.com tmsProc(tms, pos); 2151a76de3d1a92134c3e95ad7fce99234f92fa48268reed@google.com 2152aeb07864052fde0acba0ae1a42a01db3407f1f6ereed@google.com SkIPoint fixedLoc; 2153aeb07864052fde0acba0ae1a42a01db3407f1f6ereed@google.com alignProc(tms.fLoc, glyph, &fixedLoc); 2154aeb07864052fde0acba0ae1a42a01db3407f1f6ereed@google.com 2155aeb07864052fde0acba0ae1a42a01db3407f1f6ereed@google.com proc(d1g, 21569447103029273a9f8dd7f5997e8af7a1e3ee7488bungeman@google.com fixedLoc.fX + SK_FixedHalf, //d1g.fHalfSampleX, 21579447103029273a9f8dd7f5997e8af7a1e3ee7488bungeman@google.com fixedLoc.fY + SK_FixedHalf, //d1g.fHalfSampleY, 2158aeb07864052fde0acba0ae1a42a01db3407f1f6ereed@google.com glyph); 2159aeb07864052fde0acba0ae1a42a01db3407f1f6ereed@google.com } 2160aeb07864052fde0acba0ae1a42a01db3407f1f6ereed@google.com pos += scalarsPerPosition; 21618a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 21628a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 21638a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 21648a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com} 21658a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 21668a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com#if defined _WIN32 && _MSC_VER >= 1300 21678a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com#pragma warning ( pop ) 21688a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com#endif 21698a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 21708a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com/////////////////////////////////////////////////////////////////////////////// 21718a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 21728a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com#include "SkPathMeasure.h" 21738a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 21748a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.comstatic void morphpoints(SkPoint dst[], const SkPoint src[], int count, 21758a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkPathMeasure& meas, const SkMatrix& matrix) { 21768a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkMatrix::MapXYProc proc = matrix.getMapXYProc(); 21778a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 21788a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com for (int i = 0; i < count; i++) { 21798a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkPoint pos; 21808a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkVector tangent; 21818a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 21828a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com proc(matrix, src[i].fX, src[i].fY, &pos); 21838a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkScalar sx = pos.fX; 21848a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkScalar sy = pos.fY; 21858a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 21868f17b0d5e14fa336f65e33ecf30f15929aa75790reed@google.com if (!meas.getPosTan(sx, &pos, &tangent)) { 21878f17b0d5e14fa336f65e33ecf30f15929aa75790reed@google.com // set to 0 if the measure failed, so that we just set dst == pos 21888f17b0d5e14fa336f65e33ecf30f15929aa75790reed@google.com tangent.set(0, 0); 21898f17b0d5e14fa336f65e33ecf30f15929aa75790reed@google.com } 21908a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 21918a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com /* This is the old way (that explains our approach but is way too slow 21928a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkMatrix matrix; 21938a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkPoint pt; 21948a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 21958a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com pt.set(sx, sy); 21968a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com matrix.setSinCos(tangent.fY, tangent.fX); 21978a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com matrix.preTranslate(-sx, 0); 21988a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com matrix.postTranslate(pos.fX, pos.fY); 21998a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com matrix.mapPoints(&dst[i], &pt, 1); 22008a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com */ 22018a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com dst[i].set(pos.fX - SkScalarMul(tangent.fY, sy), 22028a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com pos.fY + SkScalarMul(tangent.fX, sy)); 22038a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 22048a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com} 22058a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 22068a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com/* TODO 22078a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 22088a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com Need differentially more subdivisions when the follow-path is curvy. Not sure how to 22098a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com determine that, but we need it. I guess a cheap answer is let the caller tell us, 22108a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com but that seems like a cop-out. Another answer is to get Rob Johnson to figure it out. 22118a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com*/ 22128a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.comstatic void morphpath(SkPath* dst, const SkPath& src, SkPathMeasure& meas, 22138a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com const SkMatrix& matrix) { 22148a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkPath::Iter iter(src, false); 22158a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkPoint srcP[4], dstP[3]; 22168a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkPath::Verb verb; 22178a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 22188a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com while ((verb = iter.next(srcP)) != SkPath::kDone_Verb) { 22198a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com switch (verb) { 22208a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com case SkPath::kMove_Verb: 22218a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com morphpoints(dstP, srcP, 1, meas, matrix); 22228a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com dst->moveTo(dstP[0]); 22238a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com break; 22248a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com case SkPath::kLine_Verb: 22258a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com // turn lines into quads to look bendy 22268a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com srcP[0].fX = SkScalarAve(srcP[0].fX, srcP[1].fX); 22278a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com srcP[0].fY = SkScalarAve(srcP[0].fY, srcP[1].fY); 22288a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com morphpoints(dstP, srcP, 2, meas, matrix); 22298a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com dst->quadTo(dstP[0], dstP[1]); 22308a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com break; 22318a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com case SkPath::kQuad_Verb: 22328a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com morphpoints(dstP, &srcP[1], 2, meas, matrix); 22338a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com dst->quadTo(dstP[0], dstP[1]); 22348a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com break; 22358a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com case SkPath::kCubic_Verb: 22368a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com morphpoints(dstP, &srcP[1], 3, meas, matrix); 22378a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com dst->cubicTo(dstP[0], dstP[1], dstP[2]); 22388a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com break; 22398a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com case SkPath::kClose_Verb: 22408a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com dst->close(); 22418a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com break; 22428a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com default: 22430c00f21fee3f5cfa3aa7e5d46ff94cb8cf340451tomhudson@google.com SkDEBUGFAIL("unknown verb"); 22448a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com break; 22458a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 22468a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 22478a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com} 22488a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 22498a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.comvoid SkDraw::drawTextOnPath(const char text[], size_t byteLength, 22508a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com const SkPath& follow, const SkMatrix* matrix, 22518a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com const SkPaint& paint) const { 22528a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkASSERT(byteLength == 0 || text != NULL); 22538a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 22548a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com // nothing to draw 2255045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com if (text == NULL || byteLength == 0 || fRC->isEmpty()) { 22568a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com return; 22578a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 22588a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 2259166e653f67f3fffc3846184a25ce45ab083f07a2djsollen@google.com SkTextToPathIter iter(text, byteLength, paint, true); 22608a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkPathMeasure meas(follow, false); 22618a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkScalar hOffset = 0; 22628a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 22638a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com // need to measure first 22648a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com if (paint.getTextAlign() != SkPaint::kLeft_Align) { 22658a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkScalar pathLen = meas.getLength(); 22668a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com if (paint.getTextAlign() == SkPaint::kCenter_Align) { 22678a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com pathLen = SkScalarHalf(pathLen); 22688a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 22698a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com hOffset += pathLen; 22708a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 22718a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 22728a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com const SkPath* iterPath; 22738a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkScalar xpos; 22748a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkMatrix scaledMatrix; 22758a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkScalar scale = iter.getPathScale(); 22768a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 22778a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com scaledMatrix.setScale(scale, scale); 2278a76de3d1a92134c3e95ad7fce99234f92fa48268reed@google.com 22797b4531f64cbd85d32a77ceab1bdec8335c5a7864reed@google.com while (iter.next(&iterPath, &xpos)) { 22807b4531f64cbd85d32a77ceab1bdec8335c5a7864reed@google.com if (iterPath) { 22817b4531f64cbd85d32a77ceab1bdec8335c5a7864reed@google.com SkPath tmp; 22827b4531f64cbd85d32a77ceab1bdec8335c5a7864reed@google.com SkMatrix m(scaledMatrix); 22838a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 22847b4531f64cbd85d32a77ceab1bdec8335c5a7864reed@google.com m.postTranslate(xpos + hOffset, 0); 22857b4531f64cbd85d32a77ceab1bdec8335c5a7864reed@google.com if (matrix) { 22867b4531f64cbd85d32a77ceab1bdec8335c5a7864reed@google.com m.postConcat(*matrix); 22877b4531f64cbd85d32a77ceab1bdec8335c5a7864reed@google.com } 22887b4531f64cbd85d32a77ceab1bdec8335c5a7864reed@google.com morphpath(&tmp, *iterPath, meas, m); 22897b4531f64cbd85d32a77ceab1bdec8335c5a7864reed@google.com if (fDevice) { 22907b4531f64cbd85d32a77ceab1bdec8335c5a7864reed@google.com fDevice->drawPath(*this, tmp, iter.getPaint(), NULL, true); 22917b4531f64cbd85d32a77ceab1bdec8335c5a7864reed@google.com } else { 22927b4531f64cbd85d32a77ceab1bdec8335c5a7864reed@google.com this->drawPath(tmp, iter.getPaint(), NULL, true); 22937b4531f64cbd85d32a77ceab1bdec8335c5a7864reed@google.com } 2294f2b98d67dcb6fcb3120feede9c72016fc7b3ead8reed@android.com } 22958a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 22968a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com} 22978a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 22988a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com/////////////////////////////////////////////////////////////////////////////// 22998a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 23008a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.comstruct VertState { 23018a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com int f0, f1, f2; 23028a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 23038a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com VertState(int vCount, const uint16_t indices[], int indexCount) 23048a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com : fIndices(indices) { 23058a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com fCurrIndex = 0; 23068a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com if (indices) { 23078a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com fCount = indexCount; 23088a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } else { 23098a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com fCount = vCount; 23108a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 23118a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 2312a76de3d1a92134c3e95ad7fce99234f92fa48268reed@google.com 2313a76de3d1a92134c3e95ad7fce99234f92fa48268reed@google.com typedef bool (*Proc)(VertState*); 23148a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com Proc chooseProc(SkCanvas::VertexMode mode); 23158a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 23168a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.comprivate: 23178a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com int fCount; 23188a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com int fCurrIndex; 23198a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com const uint16_t* fIndices; 2320a76de3d1a92134c3e95ad7fce99234f92fa48268reed@google.com 23218a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com static bool Triangles(VertState*); 23228a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com static bool TrianglesX(VertState*); 23238a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com static bool TriangleStrip(VertState*); 23248a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com static bool TriangleStripX(VertState*); 23258a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com static bool TriangleFan(VertState*); 23268a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com static bool TriangleFanX(VertState*); 23278a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com}; 23288a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 23298a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.combool VertState::Triangles(VertState* state) { 23308a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com int index = state->fCurrIndex; 23318a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com if (index + 3 > state->fCount) { 23328a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com return false; 23338a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 23348a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com state->f0 = index + 0; 23358a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com state->f1 = index + 1; 23368a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com state->f2 = index + 2; 23378a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com state->fCurrIndex = index + 3; 23388a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com return true; 23398a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com} 23408a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 23418a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.combool VertState::TrianglesX(VertState* state) { 23428a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com const uint16_t* indices = state->fIndices; 23438a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com int index = state->fCurrIndex; 23448a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com if (index + 3 > state->fCount) { 23458a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com return false; 23468a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 23478a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com state->f0 = indices[index + 0]; 23488a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com state->f1 = indices[index + 1]; 23498a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com state->f2 = indices[index + 2]; 23508a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com state->fCurrIndex = index + 3; 23518a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com return true; 23528a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com} 23538a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 23548a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.combool VertState::TriangleStrip(VertState* state) { 23558a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com int index = state->fCurrIndex; 23568a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com if (index + 3 > state->fCount) { 23578a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com return false; 23588a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 23598a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com state->f2 = index + 2; 23608a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com if (index & 1) { 23618a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com state->f0 = index + 1; 23628a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com state->f1 = index + 0; 23638a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } else { 23648a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com state->f0 = index + 0; 23658a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com state->f1 = index + 1; 23668a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 23678a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com state->fCurrIndex = index + 1; 23688a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com return true; 23698a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com} 23708a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 23718a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.combool VertState::TriangleStripX(VertState* state) { 23728a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com const uint16_t* indices = state->fIndices; 23738a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com int index = state->fCurrIndex; 23748a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com if (index + 3 > state->fCount) { 23758a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com return false; 23768a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 23778a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com state->f2 = indices[index + 2]; 23788a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com if (index & 1) { 23798a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com state->f0 = indices[index + 1]; 23808a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com state->f1 = indices[index + 0]; 23818a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } else { 23828a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com state->f0 = indices[index + 0]; 23838a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com state->f1 = indices[index + 1]; 23848a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 23858a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com state->fCurrIndex = index + 1; 23868a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com return true; 23878a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com} 23888a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 23898a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.combool VertState::TriangleFan(VertState* state) { 23908a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com int index = state->fCurrIndex; 23918a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com if (index + 3 > state->fCount) { 23928a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com return false; 23938a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 23948a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com state->f0 = 0; 23958a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com state->f1 = index + 1; 23968a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com state->f2 = index + 2; 23978a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com state->fCurrIndex = index + 1; 23988a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com return true; 23998a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com} 24008a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 24018a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.combool VertState::TriangleFanX(VertState* state) { 24028a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com const uint16_t* indices = state->fIndices; 24038a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com int index = state->fCurrIndex; 24048a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com if (index + 3 > state->fCount) { 24058a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com return false; 24068a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 24078a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com state->f0 = indices[0]; 24088a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com state->f1 = indices[index + 1]; 24098a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com state->f2 = indices[index + 2]; 24108a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com state->fCurrIndex = index + 1; 24118a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com return true; 24128a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com} 24138a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 24148a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.comVertState::Proc VertState::chooseProc(SkCanvas::VertexMode mode) { 24158a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com switch (mode) { 24168a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com case SkCanvas::kTriangles_VertexMode: 24178a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com return fIndices ? TrianglesX : Triangles; 24188a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com case SkCanvas::kTriangleStrip_VertexMode: 24198a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com return fIndices ? TriangleStripX : TriangleStrip; 24208a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com case SkCanvas::kTriangleFan_VertexMode: 24218a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com return fIndices ? TriangleFanX : TriangleFan; 24228a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com default: 24238a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com return NULL; 24248a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 24258a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com} 24268a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 2427045e62d715f5ee9b03deb5af3c750f8318096179reed@google.comtypedef void (*HairProc)(const SkPoint&, const SkPoint&, const SkRasterClip&, 24288a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkBlitter*); 24298a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 24308a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.comstatic HairProc ChooseHairProc(bool doAntiAlias) { 24318a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com return doAntiAlias ? SkScan::AntiHairLine : SkScan::HairLine; 24328a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com} 24338a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 24348a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.comstatic bool texture_to_matrix(const VertState& state, const SkPoint verts[], 24358a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com const SkPoint texs[], SkMatrix* matrix) { 24368a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkPoint src[3], dst[3]; 2437a76de3d1a92134c3e95ad7fce99234f92fa48268reed@google.com 24388a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com src[0] = texs[state.f0]; 24398a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com src[1] = texs[state.f1]; 24408a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com src[2] = texs[state.f2]; 24418a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com dst[0] = verts[state.f0]; 24428a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com dst[1] = verts[state.f1]; 24438a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com dst[2] = verts[state.f2]; 24448a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com return matrix->setPolyToPoly(src, dst, 3); 24458a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com} 24468a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 24478a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.comclass SkTriColorShader : public SkShader { 24488a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.compublic: 24498a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkTriColorShader() {} 24508a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 24518a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com bool setup(const SkPoint pts[], const SkColor colors[], int, int, int); 2452a76de3d1a92134c3e95ad7fce99234f92fa48268reed@google.com 2453a641f3f18e5319773989812a888f3fad49e4f2adreed@google.com virtual void shadeSpan(int x, int y, SkPMColor dstC[], int count) SK_OVERRIDE; 2454a76de3d1a92134c3e95ad7fce99234f92fa48268reed@google.com 245576f9e938df0b5826fd4c80b854ceafaf385cfbe1robertphillips@google.com SK_DEVELOPER_TO_STRING() 2456ba28d03e94dc221d6a803bf2a84a420b9159255cdjsollen@google.com SK_DECLARE_PUBLIC_FLATTENABLE_DESERIALIZATION_PROCS(SkTriColorShader) 2457ba28d03e94dc221d6a803bf2a84a420b9159255cdjsollen@google.com 24588a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.comprotected: 24598a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkTriColorShader(SkFlattenableReadBuffer& buffer) : SkShader(buffer) {} 2460a76de3d1a92134c3e95ad7fce99234f92fa48268reed@google.com 24618a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.comprivate: 24628a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkMatrix fDstToUnit; 24638a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkPMColor fColors[3]; 2464a76de3d1a92134c3e95ad7fce99234f92fa48268reed@google.com 24658a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com typedef SkShader INHERITED; 24668a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com}; 24678a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 24688a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.combool SkTriColorShader::setup(const SkPoint pts[], const SkColor colors[], 24698a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com int index0, int index1, int index2) { 2470a76de3d1a92134c3e95ad7fce99234f92fa48268reed@google.com 24718a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com fColors[0] = SkPreMultiplyColor(colors[index0]); 24728a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com fColors[1] = SkPreMultiplyColor(colors[index1]); 24738a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com fColors[2] = SkPreMultiplyColor(colors[index2]); 2474a76de3d1a92134c3e95ad7fce99234f92fa48268reed@google.com 24758a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkMatrix m, im; 24768a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com m.reset(); 24778a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com m.set(0, pts[index1].fX - pts[index0].fX); 24788a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com m.set(1, pts[index2].fX - pts[index0].fX); 24798a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com m.set(2, pts[index0].fX); 24808a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com m.set(3, pts[index1].fY - pts[index0].fY); 24818a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com m.set(4, pts[index2].fY - pts[index0].fY); 24828a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com m.set(5, pts[index0].fY); 24838a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com if (!m.invert(&im)) { 24848a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com return false; 24858a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 24868a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com return fDstToUnit.setConcat(im, this->getTotalInverse()); 24878a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com} 24888a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 24898a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com#include "SkColorPriv.h" 2490689411a87ca7d19abe04b5c9baff26bd96b2123ereed@android.com#include "SkComposeShader.h" 24918a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 24928a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.comstatic int ScalarTo256(SkScalar v) { 24938a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com int scale = SkScalarToFixed(v) >> 8; 24948a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com if (scale < 0) { 24958a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com scale = 0; 24968a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 24978a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com if (scale > 255) { 24988a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com scale = 255; 24998a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 25008a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com return SkAlpha255To256(scale); 25018a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com} 25028a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 25038a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.comvoid SkTriColorShader::shadeSpan(int x, int y, SkPMColor dstC[], int count) { 25048a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkPoint src; 2505a76de3d1a92134c3e95ad7fce99234f92fa48268reed@google.com 25068a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com for (int i = 0; i < count; i++) { 25078a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com fDstToUnit.mapXY(SkIntToScalar(x), SkIntToScalar(y), &src); 25088a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com x += 1; 2509a76de3d1a92134c3e95ad7fce99234f92fa48268reed@google.com 25108a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com int scale1 = ScalarTo256(src.fX); 25118a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com int scale2 = ScalarTo256(src.fY); 25128a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com int scale0 = 256 - scale1 - scale2; 25138a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com if (scale0 < 0) { 25148a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com if (scale1 > scale2) { 25158a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com scale2 = 256 - scale1; 25168a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } else { 25178a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com scale1 = 256 - scale2; 25188a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 25198a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com scale0 = 0; 25208a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 2521a76de3d1a92134c3e95ad7fce99234f92fa48268reed@google.com 25228a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com dstC[i] = SkAlphaMulQ(fColors[0], scale0) + 25238a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkAlphaMulQ(fColors[1], scale1) + 25248a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkAlphaMulQ(fColors[2], scale2); 25258a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 25268a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com} 25278a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 252876f9e938df0b5826fd4c80b854ceafaf385cfbe1robertphillips@google.com#ifdef SK_DEVELOPER 252976f9e938df0b5826fd4c80b854ceafaf385cfbe1robertphillips@google.comvoid SkTriColorShader::toString(SkString* str) const { 253076f9e938df0b5826fd4c80b854ceafaf385cfbe1robertphillips@google.com str->append("SkTriColorShader: ("); 253176f9e938df0b5826fd4c80b854ceafaf385cfbe1robertphillips@google.com 253276f9e938df0b5826fd4c80b854ceafaf385cfbe1robertphillips@google.com this->INHERITED::toString(str); 253376f9e938df0b5826fd4c80b854ceafaf385cfbe1robertphillips@google.com 253476f9e938df0b5826fd4c80b854ceafaf385cfbe1robertphillips@google.com str->append(")"); 253576f9e938df0b5826fd4c80b854ceafaf385cfbe1robertphillips@google.com} 253676f9e938df0b5826fd4c80b854ceafaf385cfbe1robertphillips@google.com#endif 253776f9e938df0b5826fd4c80b854ceafaf385cfbe1robertphillips@google.com 25388a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.comvoid SkDraw::drawVertices(SkCanvas::VertexMode vmode, int count, 25398a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com const SkPoint vertices[], const SkPoint textures[], 25408a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com const SkColor colors[], SkXfermode* xmode, 25418a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com const uint16_t indices[], int indexCount, 25428a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com const SkPaint& paint) const { 25438a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkASSERT(0 == count || NULL != vertices); 2544a76de3d1a92134c3e95ad7fce99234f92fa48268reed@google.com 25458a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com // abort early if there is nothing to draw 2546045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com if (count < 3 || (indices && indexCount < 3) || fRC->isEmpty()) { 25478a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com return; 25488a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 2549a76de3d1a92134c3e95ad7fce99234f92fa48268reed@google.com 25508a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com // transform out vertices into device coordinates 25518a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkAutoSTMalloc<16, SkPoint> storage(count); 25528a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkPoint* devVerts = storage.get(); 25538a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com fMatrix->mapPoints(devVerts, vertices, count); 2554a76de3d1a92134c3e95ad7fce99234f92fa48268reed@google.com 25558a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com if (fBounder) { 25568a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkRect bounds; 25578a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com bounds.set(devVerts, count); 25588a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com if (!fBounder->doRect(bounds, paint)) { 25598a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com return; 25608a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 25618a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 2562a76de3d1a92134c3e95ad7fce99234f92fa48268reed@google.com 25638a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com /* 25648a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com We can draw the vertices in 1 of 4 ways: 25658a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 25668a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com - solid color (no shader/texture[], no colors[]) 25678a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com - just colors (no shader/texture[], has colors[]) 25688a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com - just texture (has shader/texture[], no colors[]) 25698a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com - colors * texture (has shader/texture[], has colors[]) 2570a76de3d1a92134c3e95ad7fce99234f92fa48268reed@google.com 25718a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com Thus for texture drawing, we need both texture[] and a shader. 25728a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com */ 25738a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 25748a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkTriColorShader triShader; // must be above declaration of p 25758a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkPaint p(paint); 25768a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 25778a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkShader* shader = p.getShader(); 25788a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com if (NULL == shader) { 25798a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com // if we have no shader, we ignore the texture coordinates 25808a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com textures = NULL; 25818a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } else if (NULL == textures) { 25828a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com // if we don't have texture coordinates, ignore the shader 25838a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com p.setShader(NULL); 25848a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com shader = NULL; 25858a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 25868a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 25878a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com // setup the custom shader (if needed) 25888a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com if (NULL != colors) { 25898a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com if (NULL == textures) { 25908a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com // just colors (no texture) 2591a641f3f18e5319773989812a888f3fad49e4f2adreed@google.com shader = p.setShader(&triShader); 25928a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } else { 25938a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com // colors * texture 25948a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkASSERT(shader); 25958a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com bool releaseMode = false; 25968a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com if (NULL == xmode) { 25978d3cd7a170c810e3816bf00220cbef51e7b16795reed@google.com xmode = SkXfermode::Create(SkXfermode::kModulate_Mode); 25988a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com releaseMode = true; 25998a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 26008a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkShader* compose = SkNEW_ARGS(SkComposeShader, 26018a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com (&triShader, shader, xmode)); 26028a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com p.setShader(compose)->unref(); 26038a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com if (releaseMode) { 26048a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com xmode->unref(); 26058a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 2606a641f3f18e5319773989812a888f3fad49e4f2adreed@google.com shader = compose; 26078a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 26088a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 26098a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 26108a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkAutoBlitterChoose blitter(*fBitmap, *fMatrix, p); 2611ea033606a06d05d2d42aa7118409fee798e53167reed@google.com // important that we abort early, as below we may manipulate the shader 2612ea033606a06d05d2d42aa7118409fee798e53167reed@google.com // and that is only valid if the shader returned true from setContext. 2613ea033606a06d05d2d42aa7118409fee798e53167reed@google.com // If it returned false, then our blitter will be the NullBlitter. 2614ea033606a06d05d2d42aa7118409fee798e53167reed@google.com if (blitter->isNullBlitter()) { 2615ea033606a06d05d2d42aa7118409fee798e53167reed@google.com return; 2616ea033606a06d05d2d42aa7118409fee798e53167reed@google.com } 2617ea033606a06d05d2d42aa7118409fee798e53167reed@google.com 26188a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com // setup our state and function pointer for iterating triangles 26198a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com VertState state(count, indices, indexCount); 26208a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com VertState::Proc vertProc = state.chooseProc(vmode); 2621a76de3d1a92134c3e95ad7fce99234f92fa48268reed@google.com 26228a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com if (NULL != textures || NULL != colors) { 2623f94b3a4cebd4adab09c40ebe23c02a615e10c394bsalomon@google.com SkMatrix tempM; 2624f94b3a4cebd4adab09c40ebe23c02a615e10c394bsalomon@google.com SkMatrix savedLocalM; 2625f94b3a4cebd4adab09c40ebe23c02a615e10c394bsalomon@google.com if (shader) { 2626f94b3a4cebd4adab09c40ebe23c02a615e10c394bsalomon@google.com savedLocalM = shader->getLocalMatrix(); 2627f94b3a4cebd4adab09c40ebe23c02a615e10c394bsalomon@google.com } 2628a76de3d1a92134c3e95ad7fce99234f92fa48268reed@google.com 262919376b80476b0fdbdcc8ac33bfdbae9b0d3fdce7djsollen@google.com // setContext has already been called and verified to return true 263019376b80476b0fdbdcc8ac33bfdbae9b0d3fdce7djsollen@google.com // by the constructor of SkAutoBlitterChoose 263119376b80476b0fdbdcc8ac33bfdbae9b0d3fdce7djsollen@google.com bool prevContextSuccess = true; 26328a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com while (vertProc(&state)) { 26338a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com if (NULL != textures) { 26348a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com if (texture_to_matrix(state, vertices, textures, &tempM)) { 2635f94b3a4cebd4adab09c40ebe23c02a615e10c394bsalomon@google.com tempM.postConcat(savedLocalM); 26368a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com shader->setLocalMatrix(tempM); 263719376b80476b0fdbdcc8ac33bfdbae9b0d3fdce7djsollen@google.com // Need to recall setContext since we changed the local matrix. 263819376b80476b0fdbdcc8ac33bfdbae9b0d3fdce7djsollen@google.com // However, we also need to balance the calls this with a 263919376b80476b0fdbdcc8ac33bfdbae9b0d3fdce7djsollen@google.com // call to endContext which requires tracking the result of 264019376b80476b0fdbdcc8ac33bfdbae9b0d3fdce7djsollen@google.com // the previous call to setContext. 264119376b80476b0fdbdcc8ac33bfdbae9b0d3fdce7djsollen@google.com if (prevContextSuccess) { 264219376b80476b0fdbdcc8ac33bfdbae9b0d3fdce7djsollen@google.com shader->endContext(); 264319376b80476b0fdbdcc8ac33bfdbae9b0d3fdce7djsollen@google.com } 264419376b80476b0fdbdcc8ac33bfdbae9b0d3fdce7djsollen@google.com prevContextSuccess = shader->setContext(*fBitmap, p, *fMatrix); 264519376b80476b0fdbdcc8ac33bfdbae9b0d3fdce7djsollen@google.com if (!prevContextSuccess) { 26468a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com continue; 26478a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 26488a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 26498a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 26508a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com if (NULL != colors) { 26518a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com if (!triShader.setup(vertices, colors, 26528a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com state.f0, state.f1, state.f2)) { 26538a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com continue; 26548a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 26558a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 2656045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com 2657045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com SkPoint tmp[] = { 2658045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com devVerts[state.f0], devVerts[state.f1], devVerts[state.f2] 2659045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com }; 2660045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com SkScan::FillTriangle(tmp, *fRC, blitter.get()); 26618a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 266219376b80476b0fdbdcc8ac33bfdbae9b0d3fdce7djsollen@google.com 26638a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com // now restore the shader's original local matrix 26648a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com if (NULL != shader) { 2665f94b3a4cebd4adab09c40ebe23c02a615e10c394bsalomon@google.com shader->setLocalMatrix(savedLocalM); 26668a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 266719376b80476b0fdbdcc8ac33bfdbae9b0d3fdce7djsollen@google.com 266819376b80476b0fdbdcc8ac33bfdbae9b0d3fdce7djsollen@google.com // If the final call to setContext fails we must make it suceed so that the 266919376b80476b0fdbdcc8ac33bfdbae9b0d3fdce7djsollen@google.com // call to endContext in the destructor for SkAutoBlitterChoose is balanced. 267019376b80476b0fdbdcc8ac33bfdbae9b0d3fdce7djsollen@google.com if (!prevContextSuccess) { 267119376b80476b0fdbdcc8ac33bfdbae9b0d3fdce7djsollen@google.com prevContextSuccess = shader->setContext(*fBitmap, paint, SkMatrix::I()); 267219376b80476b0fdbdcc8ac33bfdbae9b0d3fdce7djsollen@google.com SkASSERT(prevContextSuccess); 267319376b80476b0fdbdcc8ac33bfdbae9b0d3fdce7djsollen@google.com } 26748a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } else { 26758a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com // no colors[] and no texture 26768a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com HairProc hairProc = ChooseHairProc(paint.isAntiAlias()); 2677045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com const SkRasterClip& clip = *fRC; 26788a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com while (vertProc(&state)) { 2679045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com hairProc(devVerts[state.f0], devVerts[state.f1], clip, blitter.get()); 2680045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com hairProc(devVerts[state.f1], devVerts[state.f2], clip, blitter.get()); 2681045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com hairProc(devVerts[state.f2], devVerts[state.f0], clip, blitter.get()); 26828a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 26838a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 26848a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com} 26858a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 26860a0a236c3ba241046d38caaf78226ec68ff9c998reed@google.com/////////////////////////////////////////////////////////////////////////////// 26870a0a236c3ba241046d38caaf78226ec68ff9c998reed@google.com/////////////////////////////////////////////////////////////////////////////// 26888a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 26898a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com#ifdef SK_DEBUG 26908a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 2691f2b98d67dcb6fcb3120feede9c72016fc7b3ead8reed@android.comvoid SkDraw::validate() const { 26928a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkASSERT(fBitmap != NULL); 26938a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkASSERT(fMatrix != NULL); 26948a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkASSERT(fClip != NULL); 2695045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com SkASSERT(fRC != NULL); 26968a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 2697045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com const SkIRect& cr = fRC->getBounds(); 26988a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkIRect br; 26998a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 2700f2b98d67dcb6fcb3120feede9c72016fc7b3ead8reed@android.com br.set(0, 0, fBitmap->width(), fBitmap->height()); 27018a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkASSERT(cr.isEmpty() || br.contains(cr)); 27028a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com} 27038a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 27048a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com#endif 27058a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 27060a0a236c3ba241046d38caaf78226ec68ff9c998reed@google.com/////////////////////////////////////////////////////////////////////////////// 27070a0a236c3ba241046d38caaf78226ec68ff9c998reed@google.com 27080a0a236c3ba241046d38caaf78226ec68ff9c998reed@google.comSkBounder::SkBounder() { 27090a0a236c3ba241046d38caaf78226ec68ff9c998reed@google.com // initialize up front. This gets reset by SkCanvas before each draw call. 27100a0a236c3ba241046d38caaf78226ec68ff9c998reed@google.com fClip = &SkRegion::GetEmptyRegion(); 27110a0a236c3ba241046d38caaf78226ec68ff9c998reed@google.com} 27128a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 27138a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.combool SkBounder::doIRect(const SkIRect& r) { 27148a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkIRect rr; 27158a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com return rr.intersect(fClip->getBounds(), r) && this->onIRect(rr); 27168a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com} 27178a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 2718d055c1fde2128514167b315f4d104b177e04a3dereed@android.com// TODO: change the prototype to take fixed, and update the callers 2719d055c1fde2128514167b315f4d104b177e04a3dereed@android.combool SkBounder::doIRectGlyph(const SkIRect& r, int x, int y, 2720d055c1fde2128514167b315f4d104b177e04a3dereed@android.com const SkGlyph& glyph) { 2721474a12c4976b3000174cad5df74c498cd723c5e2reed@android.com SkIRect rr; 2722d055c1fde2128514167b315f4d104b177e04a3dereed@android.com if (!rr.intersect(fClip->getBounds(), r)) { 2723d055c1fde2128514167b315f4d104b177e04a3dereed@android.com return false; 2724d055c1fde2128514167b315f4d104b177e04a3dereed@android.com } 2725d055c1fde2128514167b315f4d104b177e04a3dereed@android.com GlyphRec rec; 2726d055c1fde2128514167b315f4d104b177e04a3dereed@android.com rec.fLSB.set(SkIntToFixed(x), SkIntToFixed(y)); 2727d055c1fde2128514167b315f4d104b177e04a3dereed@android.com rec.fRSB.set(rec.fLSB.fX + glyph.fAdvanceX, 2728d055c1fde2128514167b315f4d104b177e04a3dereed@android.com rec.fLSB.fY + glyph.fAdvanceY); 2729d055c1fde2128514167b315f4d104b177e04a3dereed@android.com rec.fGlyphID = glyph.getGlyphID(); 2730d055c1fde2128514167b315f4d104b177e04a3dereed@android.com rec.fFlags = 0; 2731d055c1fde2128514167b315f4d104b177e04a3dereed@android.com return this->onIRectGlyph(rr, rec); 2732474a12c4976b3000174cad5df74c498cd723c5e2reed@android.com} 2733474a12c4976b3000174cad5df74c498cd723c5e2reed@android.com 27348a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.combool SkBounder::doHairline(const SkPoint& pt0, const SkPoint& pt1, 27358a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com const SkPaint& paint) { 27368a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkIRect r; 27378a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkScalar v0, v1; 27388a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 27398a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com v0 = pt0.fX; 27408a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com v1 = pt1.fX; 27418a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com if (v0 > v1) { 27428a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkTSwap<SkScalar>(v0, v1); 27438a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 27448a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com r.fLeft = SkScalarFloor(v0); 27458a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com r.fRight = SkScalarCeil(v1); 27468a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 27478a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com v0 = pt0.fY; 27488a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com v1 = pt1.fY; 27498a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com if (v0 > v1) { 27508a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkTSwap<SkScalar>(v0, v1); 27518a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 27528a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com r.fTop = SkScalarFloor(v0); 27538a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com r.fBottom = SkScalarCeil(v1); 27548a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 27558a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com if (paint.isAntiAlias()) { 27568a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com r.inset(-1, -1); 27578a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 27588a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com return this->doIRect(r); 27598a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com} 27608a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 27618a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.combool SkBounder::doRect(const SkRect& rect, const SkPaint& paint) { 27628a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkIRect r; 27638a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 27648a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com if (paint.getStyle() == SkPaint::kFill_Style) { 27658a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com rect.round(&r); 27668a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } else { 27678a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com int rad = -1; 27688a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com rect.roundOut(&r); 27698a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com if (paint.isAntiAlias()) { 27708a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com rad = -2; 27718a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 27728a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com r.inset(rad, rad); 27738a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 27748a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com return this->doIRect(r); 27758a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com} 27768a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 27778a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.combool SkBounder::doPath(const SkPath& path, const SkPaint& paint, bool doFill) { 2778d252db03d9650013b545ef9781fe993c07f8f314reed@android.com SkIRect r; 2779d252db03d9650013b545ef9781fe993c07f8f314reed@android.com const SkRect& bounds = path.getBounds(); 27808a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 27818a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com if (doFill) { 27828a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com bounds.round(&r); 27838a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } else { // hairline 27848a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com bounds.roundOut(&r); 27858a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 27868a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 27878a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com if (paint.isAntiAlias()) { 27888a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com r.inset(-1, -1); 27898a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 27908a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com return this->doIRect(r); 27918a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com} 27928a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 27938a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.comvoid SkBounder::commit() { 27948a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com // override in subclass 27958a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com} 27968a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 27978a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com//////////////////////////////////////////////////////////////////////////////////////////////// 27988a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 27998a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com#include "SkPath.h" 28008a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com#include "SkDraw.h" 28018a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com#include "SkRegion.h" 28028a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com#include "SkBlitter.h" 28038a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 28048a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.comstatic bool compute_bounds(const SkPath& devPath, const SkIRect* clipBounds, 280530711b764be6bbb58caa30a0ac5d1474c894efe7reed@google.com const SkMaskFilter* filter, const SkMatrix* filterMatrix, 28068a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkIRect* bounds) { 28078a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com if (devPath.isEmpty()) { 28088a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com return false; 28098a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 28108a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 28118a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com // init our bounds from the path 28128a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com { 2813d252db03d9650013b545ef9781fe993c07f8f314reed@android.com SkRect pathBounds = devPath.getBounds(); 28148a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com pathBounds.inset(-SK_ScalarHalf, -SK_ScalarHalf); 28158a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com pathBounds.roundOut(bounds); 28168a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 2817a76de3d1a92134c3e95ad7fce99234f92fa48268reed@google.com 28186db75fc2c393ba86a3f533597a8bcd348477e79ctomhudson@google.com SkIPoint margin = SkIPoint::Make(0, 0); 28198a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com if (filter) { 28208a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkASSERT(filterMatrix); 2821a76de3d1a92134c3e95ad7fce99234f92fa48268reed@google.com 28225af16f8d670b3ce1c7644a4737e02e2e2257614ebungeman@google.com SkMask srcM, dstM; 2823a76de3d1a92134c3e95ad7fce99234f92fa48268reed@google.com 28248a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com srcM.fBounds = *bounds; 28258a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com srcM.fFormat = SkMask::kA8_Format; 28268a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com srcM.fImage = NULL; 28278a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com if (!filter->filterMask(&dstM, srcM, *filterMatrix, &margin)) { 28288a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com return false; 28298a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 28308a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 2831a76de3d1a92134c3e95ad7fce99234f92fa48268reed@google.com 28325af16f8d670b3ce1c7644a4737e02e2e2257614ebungeman@google.com // (possibly) trim the bounds to reflect the clip 28338a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com // (plus whatever slop the filter needs) 28345af16f8d670b3ce1c7644a4737e02e2e2257614ebungeman@google.com if (clipBounds) { 28355af16f8d670b3ce1c7644a4737e02e2e2257614ebungeman@google.com SkIRect tmp = *clipBounds; 28363555591c158c242b071c7ec92ad75b6e4cb74af2reed@android.com // Ugh. Guard against gigantic margins from wacky filters. Without this 28373555591c158c242b071c7ec92ad75b6e4cb74af2reed@android.com // check we can request arbitrary amounts of slop beyond our visible 28383555591c158c242b071c7ec92ad75b6e4cb74af2reed@android.com // clip, and bring down the renderer (at least on finite RAM machines 28393555591c158c242b071c7ec92ad75b6e4cb74af2reed@android.com // like handsets, etc.). Need to balance this invented value between 28403555591c158c242b071c7ec92ad75b6e4cb74af2reed@android.com // quality of large filters like blurs, and the corresponding memory 28413555591c158c242b071c7ec92ad75b6e4cb74af2reed@android.com // requests. 28423555591c158c242b071c7ec92ad75b6e4cb74af2reed@android.com static const int MAX_MARGIN = 128; 28433555591c158c242b071c7ec92ad75b6e4cb74af2reed@android.com tmp.inset(-SkMin32(margin.fX, MAX_MARGIN), 28443555591c158c242b071c7ec92ad75b6e4cb74af2reed@android.com -SkMin32(margin.fY, MAX_MARGIN)); 28455af16f8d670b3ce1c7644a4737e02e2e2257614ebungeman@google.com if (!bounds->intersect(tmp)) { 28465af16f8d670b3ce1c7644a4737e02e2e2257614ebungeman@google.com return false; 28475af16f8d670b3ce1c7644a4737e02e2e2257614ebungeman@google.com } 28488a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 28498a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 28508a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com return true; 28518a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com} 28528a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 28532ac4ef5e6e0c9c95c9200408ba25a95ca758eac2junov@chromium.orgstatic void draw_into_mask(const SkMask& mask, const SkPath& devPath, 28542ac4ef5e6e0c9c95c9200408ba25a95ca758eac2junov@chromium.org SkPaint::Style style) { 2855045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com SkBitmap bm; 2856045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com SkDraw draw; 2857045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com SkRasterClip clip; 2858045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com SkMatrix matrix; 2859045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com SkPaint paint; 28608a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 28618a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com bm.setConfig(SkBitmap::kA8_Config, mask.fBounds.width(), mask.fBounds.height(), mask.fRowBytes); 28628a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com bm.setPixels(mask.fImage); 28638a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 2864045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com clip.setRect(SkIRect::MakeWH(mask.fBounds.width(), mask.fBounds.height())); 28658a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com matrix.setTranslate(-SkIntToScalar(mask.fBounds.fLeft), 28668a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com -SkIntToScalar(mask.fBounds.fTop)); 28678a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 28688a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com draw.fBitmap = &bm; 2869045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com draw.fRC = &clip; 2870045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com draw.fClip = &clip.bwRgn(); 28718a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com draw.fMatrix = &matrix; 28728a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com draw.fBounder = NULL; 28738a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com paint.setAntiAlias(true); 28742ac4ef5e6e0c9c95c9200408ba25a95ca758eac2junov@chromium.org paint.setStyle(style); 28758a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com draw.drawPath(devPath, paint); 28768a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com} 28778a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 28788a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.combool SkDraw::DrawToMask(const SkPath& devPath, const SkIRect* clipBounds, 287930711b764be6bbb58caa30a0ac5d1474c894efe7reed@google.com const SkMaskFilter* filter, const SkMatrix* filterMatrix, 28802ac4ef5e6e0c9c95c9200408ba25a95ca758eac2junov@chromium.org SkMask* mask, SkMask::CreateMode mode, 28812ac4ef5e6e0c9c95c9200408ba25a95ca758eac2junov@chromium.org SkPaint::Style style) { 28828a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com if (SkMask::kJustRenderImage_CreateMode != mode) { 28838a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com if (!compute_bounds(devPath, clipBounds, filter, filterMatrix, &mask->fBounds)) 28848a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com return false; 28858a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 2886a76de3d1a92134c3e95ad7fce99234f92fa48268reed@google.com 28878a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com if (SkMask::kComputeBoundsAndRenderImage_CreateMode == mode) { 28888a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com mask->fFormat = SkMask::kA8_Format; 28898a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com mask->fRowBytes = mask->fBounds.width(); 2890543ed9352c7dfd93071c08b14930cca2e82a08d4reed@android.com size_t size = mask->computeImageSize(); 2891543ed9352c7dfd93071c08b14930cca2e82a08d4reed@android.com if (0 == size) { 2892543ed9352c7dfd93071c08b14930cca2e82a08d4reed@android.com // we're too big to allocate the mask, abort 2893543ed9352c7dfd93071c08b14930cca2e82a08d4reed@android.com return false; 2894543ed9352c7dfd93071c08b14930cca2e82a08d4reed@android.com } 2895543ed9352c7dfd93071c08b14930cca2e82a08d4reed@android.com mask->fImage = SkMask::AllocImage(size); 28968a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com memset(mask->fImage, 0, mask->computeImageSize()); 28978a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 28988a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 28998a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com if (SkMask::kJustComputeBounds_CreateMode != mode) { 29002ac4ef5e6e0c9c95c9200408ba25a95ca758eac2junov@chromium.org draw_into_mask(*mask, devPath, style); 29018a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 2902a76de3d1a92134c3e95ad7fce99234f92fa48268reed@google.com 29038a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com return true; 29048a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com} 2905