SkDraw.cpp revision f94b3a4cebd4adab09c40ebe23c02a615e10c394
1ec3ed6a5ebf6f2c406d7bcf94b6bc34fcaeb976eepoger@google.com 2ec3ed6a5ebf6f2c406d7bcf94b6bc34fcaeb976eepoger@google.com/* 3ec3ed6a5ebf6f2c406d7bcf94b6bc34fcaeb976eepoger@google.com * Copyright 2006 The Android Open Source Project 4ec3ed6a5ebf6f2c406d7bcf94b6bc34fcaeb976eepoger@google.com * 5ec3ed6a5ebf6f2c406d7bcf94b6bc34fcaeb976eepoger@google.com * Use of this source code is governed by a BSD-style license that can be 6ec3ed6a5ebf6f2c406d7bcf94b6bc34fcaeb976eepoger@google.com * found in the LICENSE file. 7ec3ed6a5ebf6f2c406d7bcf94b6bc34fcaeb976eepoger@google.com */ 8ec3ed6a5ebf6f2c406d7bcf94b6bc34fcaeb976eepoger@google.com 98a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 108a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com#include "SkDraw.h" 118a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com#include "SkBlitter.h" 128a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com#include "SkBounder.h" 138a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com#include "SkCanvas.h" 148a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com#include "SkColorPriv.h" 158a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com#include "SkDevice.h" 162211b623274e24d0025763cfa855c9eb53d5b900bungeman@google.com#include "SkFixed.h" 178a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com#include "SkMaskFilter.h" 188a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com#include "SkPaint.h" 198a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com#include "SkPathEffect.h" 20045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com#include "SkRasterClip.h" 218a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com#include "SkRasterizer.h" 228a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com#include "SkScan.h" 238a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com#include "SkShader.h" 248a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com#include "SkStroke.h" 258a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com#include "SkTemplatesPriv.h" 2632e5d97ccf60f859db063ebd6e903c362e625767reed@google.com#include "SkTLazy.h" 278a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com#include "SkUtils.h" 288a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 298a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com#include "SkAutoKern.h" 308a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com#include "SkBitmapProcShader.h" 318a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com#include "SkDrawProcs.h" 328a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 338a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com//#define TRACE_BITMAP_DRAWS 348a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 358a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com#define kBlitterStorageLongCount (sizeof(SkBitmapProcShader) >> 2) 368a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 37fd4236ecc1d5eb1bb48ca9dc33df5e9051c3036ereed@google.com/** Helper for allocating small blitters on the stack. 38fd4236ecc1d5eb1bb48ca9dc33df5e9051c3036ereed@google.com */ 3940c2ba27b6e5c6a4b6c073264f8c0a7c86355abereed@google.comclass SkAutoBlitterChoose : SkNoncopyable { 408a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.compublic: 411d6ee0bd4db7f3b676209341214641d9af5a965freed@google.com SkAutoBlitterChoose() { 421d6ee0bd4db7f3b676209341214641d9af5a965freed@google.com fBlitter = NULL; 431d6ee0bd4db7f3b676209341214641d9af5a965freed@google.com } 448a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkAutoBlitterChoose(const SkBitmap& device, const SkMatrix& matrix, 458a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com const SkPaint& paint) { 468a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com fBlitter = SkBlitter::Choose(device, matrix, paint, 478a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com fStorage, sizeof(fStorage)); 488a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 49fbfcd5602128ec010c82cb733c9cdc0a3254f9f3rmistry@google.com 508a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com ~SkAutoBlitterChoose(); 518a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 528a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkBlitter* operator->() { return fBlitter; } 538a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkBlitter* get() const { return fBlitter; } 548a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 551d6ee0bd4db7f3b676209341214641d9af5a965freed@google.com void choose(const SkBitmap& device, const SkMatrix& matrix, 561d6ee0bd4db7f3b676209341214641d9af5a965freed@google.com const SkPaint& paint) { 571d6ee0bd4db7f3b676209341214641d9af5a965freed@google.com SkASSERT(!fBlitter); 581d6ee0bd4db7f3b676209341214641d9af5a965freed@google.com fBlitter = SkBlitter::Choose(device, matrix, paint, 591d6ee0bd4db7f3b676209341214641d9af5a965freed@google.com fStorage, sizeof(fStorage)); 601d6ee0bd4db7f3b676209341214641d9af5a965freed@google.com } 611d6ee0bd4db7f3b676209341214641d9af5a965freed@google.com 628a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.comprivate: 638a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkBlitter* fBlitter; 648a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com uint32_t fStorage[kBlitterStorageLongCount]; 658a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com}; 668a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 678a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.comSkAutoBlitterChoose::~SkAutoBlitterChoose() { 688a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com if ((void*)fBlitter == (void*)fStorage) { 698a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com fBlitter->~SkBlitter(); 708a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } else { 718a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkDELETE(fBlitter); 728a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 738a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com} 748a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 7540c2ba27b6e5c6a4b6c073264f8c0a7c86355abereed@google.com/** 7640c2ba27b6e5c6a4b6c073264f8c0a7c86355abereed@google.com * Since we are providing the storage for the shader (to avoid the perf cost 7740c2ba27b6e5c6a4b6c073264f8c0a7c86355abereed@google.com * of calling new) we insist that in our destructor we can account for all 7840c2ba27b6e5c6a4b6c073264f8c0a7c86355abereed@google.com * owners of the shader. 7940c2ba27b6e5c6a4b6c073264f8c0a7c86355abereed@google.com */ 8040c2ba27b6e5c6a4b6c073264f8c0a7c86355abereed@google.comclass SkAutoBitmapShaderInstall : SkNoncopyable { 818a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.compublic: 8240c2ba27b6e5c6a4b6c073264f8c0a7c86355abereed@google.com SkAutoBitmapShaderInstall(const SkBitmap& src, const SkPaint& paint) 8340c2ba27b6e5c6a4b6c073264f8c0a7c86355abereed@google.com : fPaint(paint) /* makes a copy of the paint */ { 8440c2ba27b6e5c6a4b6c073264f8c0a7c86355abereed@google.com fPaint.setShader(SkShader::CreateBitmapShader(src, 858a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkShader::kClamp_TileMode, SkShader::kClamp_TileMode, 868a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com fStorage, sizeof(fStorage))); 8740c2ba27b6e5c6a4b6c073264f8c0a7c86355abereed@google.com // we deliberately left the shader with an owner-count of 2 8840c2ba27b6e5c6a4b6c073264f8c0a7c86355abereed@google.com SkASSERT(2 == fPaint.getShader()->getRefCnt()); 898a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 9082065d667f64e232bcde2ad849756a6096fcbe6freed@google.com 918a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com ~SkAutoBitmapShaderInstall() { 9240c2ba27b6e5c6a4b6c073264f8c0a7c86355abereed@google.com SkShader* shader = fPaint.getShader(); 9340c2ba27b6e5c6a4b6c073264f8c0a7c86355abereed@google.com // since we manually destroy shader, we insist that owners == 2 9440c2ba27b6e5c6a4b6c073264f8c0a7c86355abereed@google.com SkASSERT(2 == shader->getRefCnt()); 958a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 9640c2ba27b6e5c6a4b6c073264f8c0a7c86355abereed@google.com fPaint.setShader(NULL); // unref the shader by 1 978a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 9840c2ba27b6e5c6a4b6c073264f8c0a7c86355abereed@google.com // now destroy to take care of the 2nd owner-count 998a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com if ((void*)shader == (void*)fStorage) { 1008a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com shader->~SkShader(); 1018a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } else { 1028a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkDELETE(shader); 1038a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 1048a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 10582065d667f64e232bcde2ad849756a6096fcbe6freed@google.com 10640c2ba27b6e5c6a4b6c073264f8c0a7c86355abereed@google.com // return the new paint that has the shader applied 10740c2ba27b6e5c6a4b6c073264f8c0a7c86355abereed@google.com const SkPaint& paintWithShader() const { return fPaint; } 10882065d667f64e232bcde2ad849756a6096fcbe6freed@google.com 1098a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.comprivate: 11040c2ba27b6e5c6a4b6c073264f8c0a7c86355abereed@google.com SkPaint fPaint; // copy of caller's paint (which we then modify) 11140c2ba27b6e5c6a4b6c073264f8c0a7c86355abereed@google.com uint32_t fStorage[kBlitterStorageLongCount]; 1128a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com}; 1138a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 1148a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com/////////////////////////////////////////////////////////////////////////////// 1158a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 116f2b98d67dcb6fcb3120feede9c72016fc7b3ead8reed@android.comSkDraw::SkDraw() { 117f2b98d67dcb6fcb3120feede9c72016fc7b3ead8reed@android.com sk_bzero(this, sizeof(*this)); 118f2b98d67dcb6fcb3120feede9c72016fc7b3ead8reed@android.com} 119f2b98d67dcb6fcb3120feede9c72016fc7b3ead8reed@android.com 1208a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.comSkDraw::SkDraw(const SkDraw& src) { 1218a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com memcpy(this, &src, sizeof(*this)); 1228a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com} 1238a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 1248a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com/////////////////////////////////////////////////////////////////////////////// 1258a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 1268a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.comtypedef void (*BitmapXferProc)(void* pixels, size_t bytes, uint32_t data); 1278a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 1288a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.comstatic void D_Clear_BitmapXferProc(void* pixels, size_t bytes, uint32_t) { 1294516f4786f5dda1b86a8f825b9e8e910d9c2363creed@android.com sk_bzero(pixels, bytes); 1308a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com} 1318a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 1328a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.comstatic void D_Dst_BitmapXferProc(void*, size_t, uint32_t data) {} 1338a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 1348a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.comstatic void D32_Src_BitmapXferProc(void* pixels, size_t bytes, uint32_t data) { 1358a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com sk_memset32((uint32_t*)pixels, data, bytes >> 2); 1368a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com} 1378a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 1388a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.comstatic void D16_Src_BitmapXferProc(void* pixels, size_t bytes, uint32_t data) { 1398a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com sk_memset16((uint16_t*)pixels, data, bytes >> 1); 1408a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com} 1418a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 1428a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.comstatic void DA8_Src_BitmapXferProc(void* pixels, size_t bytes, uint32_t data) { 1438a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com memset(pixels, data, bytes); 1448a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com} 1458a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 1468a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.comstatic BitmapXferProc ChooseBitmapXferProc(const SkBitmap& bitmap, 1478a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com const SkPaint& paint, 1488a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com uint32_t* data) { 1498a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com // todo: we can apply colorfilter up front if no shader, so we wouldn't 1508a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com // need to abort this fastpath 1518a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com if (paint.getShader() || paint.getColorFilter()) { 1528a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com return NULL; 1538a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 1548a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 155845fdaca174f4675e9acc164b510e3a5ffa9053creed@android.com SkXfermode::Mode mode; 156be2aa2aa1f8bf73d974bdd9438fc741bbf0cfbe6mike@reedtribe.org if (!SkXfermode::AsMode(paint.getXfermode(), &mode)) { 1578a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com return NULL; 1588a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 159a76de3d1a92134c3e95ad7fce99234f92fa48268reed@google.com 1608a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkColor color = paint.getColor(); 161a76de3d1a92134c3e95ad7fce99234f92fa48268reed@google.com 1628a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com // collaps modes based on color... 163845fdaca174f4675e9acc164b510e3a5ffa9053creed@android.com if (SkXfermode::kSrcOver_Mode == mode) { 1648a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com unsigned alpha = SkColorGetA(color); 1658a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com if (0 == alpha) { 166845fdaca174f4675e9acc164b510e3a5ffa9053creed@android.com mode = SkXfermode::kDst_Mode; 1678a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } else if (0xFF == alpha) { 168845fdaca174f4675e9acc164b510e3a5ffa9053creed@android.com mode = SkXfermode::kSrc_Mode; 1698a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 1708a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 171a76de3d1a92134c3e95ad7fce99234f92fa48268reed@google.com 1728a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com switch (mode) { 173845fdaca174f4675e9acc164b510e3a5ffa9053creed@android.com case SkXfermode::kClear_Mode: 1748a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com// SkDebugf("--- D_Clear_BitmapXferProc\n"); 1758a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com return D_Clear_BitmapXferProc; // ignore data 176845fdaca174f4675e9acc164b510e3a5ffa9053creed@android.com case SkXfermode::kDst_Mode: 1778a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com// SkDebugf("--- D_Dst_BitmapXferProc\n"); 1788a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com return D_Dst_BitmapXferProc; // ignore data 179845fdaca174f4675e9acc164b510e3a5ffa9053creed@android.com case SkXfermode::kSrc_Mode: { 1808a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com /* 181a76de3d1a92134c3e95ad7fce99234f92fa48268reed@google.com should I worry about dithering for the lower depths? 1828a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com */ 1838a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkPMColor pmc = SkPreMultiplyColor(color); 1848a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com switch (bitmap.config()) { 1858a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com case SkBitmap::kARGB_8888_Config: 1868a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com if (data) { 1878a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com *data = pmc; 1888a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 1898a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com// SkDebugf("--- D32_Src_BitmapXferProc\n"); 1908a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com return D32_Src_BitmapXferProc; 1918a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com case SkBitmap::kARGB_4444_Config: 1928a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com if (data) { 1938a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com *data = SkPixel32ToPixel4444(pmc); 1948a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 1958a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com// SkDebugf("--- D16_Src_BitmapXferProc\n"); 1968a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com return D16_Src_BitmapXferProc; 1978a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com case SkBitmap::kRGB_565_Config: 1988a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com if (data) { 1998a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com *data = SkPixel32ToPixel16(pmc); 2008a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 2018a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com// SkDebugf("--- D16_Src_BitmapXferProc\n"); 2028a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com return D16_Src_BitmapXferProc; 2038a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com case SkBitmap::kA8_Config: 2048a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com if (data) { 2058a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com *data = SkGetPackedA32(pmc); 2068a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 2078a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com// SkDebugf("--- DA8_Src_BitmapXferProc\n"); 2088a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com return DA8_Src_BitmapXferProc; 2098a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com default: 2108a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com break; 2118a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 2128a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com break; 2138a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 2148a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com default: 2158a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com break; 2168a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 2178a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com return NULL; 2188a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com} 2198a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 2208a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.comstatic void CallBitmapXferProc(const SkBitmap& bitmap, const SkIRect& rect, 2218a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com BitmapXferProc proc, uint32_t procData) { 2228a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com int shiftPerPixel; 2238a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com switch (bitmap.config()) { 2248a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com case SkBitmap::kARGB_8888_Config: 2258a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com shiftPerPixel = 2; 2268a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com break; 2278a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com case SkBitmap::kARGB_4444_Config: 2288a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com case SkBitmap::kRGB_565_Config: 2298a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com shiftPerPixel = 1; 2308a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com break; 2318a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com case SkBitmap::kA8_Config: 2328a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com shiftPerPixel = 0; 2338a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com break; 2348a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com default: 2350c00f21fee3f5cfa3aa7e5d46ff94cb8cf340451tomhudson@google.com SkDEBUGFAIL("Can't use xferproc on this config"); 2368a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com return; 2378a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 2388a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 2398a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com uint8_t* pixels = (uint8_t*)bitmap.getPixels(); 2408a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkASSERT(pixels); 2418a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com const size_t rowBytes = bitmap.rowBytes(); 2428a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com const int widthBytes = rect.width() << shiftPerPixel; 2438a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 2448a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com // skip down to the first scanline and X position 2458a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com pixels += rect.fTop * rowBytes + (rect.fLeft << shiftPerPixel); 2468a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com for (int scans = rect.height() - 1; scans >= 0; --scans) { 2478a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com proc(pixels, widthBytes, procData); 2488a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com pixels += rowBytes; 2498a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 2508a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com} 2518a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 2528a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.comvoid SkDraw::drawPaint(const SkPaint& paint) const { 253f2b98d67dcb6fcb3120feede9c72016fc7b3ead8reed@android.com SkDEBUGCODE(this->validate();) 2548a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 255045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com if (fRC->isEmpty()) { 2568a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com return; 2578a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 2588a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 2598a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkIRect devRect; 2608a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com devRect.set(0, 0, fBitmap->width(), fBitmap->height()); 2618a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com if (fBounder && !fBounder->doIRect(devRect)) { 2628a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com return; 2638a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 264a76de3d1a92134c3e95ad7fce99234f92fa48268reed@google.com 265045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com if (fRC->isBW()) { 266045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com /* If we don't have a shader (i.e. we're just a solid color) we may 267045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com be faster to operate directly on the device bitmap, rather than invoking 268045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com a blitter. Esp. true for xfermodes, which require a colorshader to be 269045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com present, which is just redundant work. Since we're drawing everywhere 270045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com in the clip, we don't have to worry about antialiasing. 271045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com */ 272045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com uint32_t procData = 0; // to avoid the warning 273045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com BitmapXferProc proc = ChooseBitmapXferProc(*fBitmap, paint, &procData); 274045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com if (proc) { 275045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com if (D_Dst_BitmapXferProc == proc) { // nothing to do 276045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com return; 277045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com } 278a76de3d1a92134c3e95ad7fce99234f92fa48268reed@google.com 279045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com SkRegion::Iterator iter(fRC->bwRgn()); 280045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com while (!iter.done()) { 281045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com CallBitmapXferProc(*fBitmap, iter.rect(), proc, procData); 282045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com iter.next(); 283045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com } 284045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com return; 2858a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 2868a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 287045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com 288045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com // normal case: use a blitter 289045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com SkAutoBlitterChoose blitter(*fBitmap, *fMatrix, paint); 290045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com SkScan::FillIRect(devRect, *fRC, blitter.get()); 2918a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com} 2928a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 2938a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com/////////////////////////////////////////////////////////////////////////////// 2948a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 2958a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.comstruct PtProcRec { 2968a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkCanvas::PointMode fMode; 2978a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com const SkPaint* fPaint; 2988a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com const SkRegion* fClip; 299045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com const SkRasterClip* fRC; 300a76de3d1a92134c3e95ad7fce99234f92fa48268reed@google.com 3018a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com // computed values 3028a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkFixed fRadius; 303a76de3d1a92134c3e95ad7fce99234f92fa48268reed@google.com 3048a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com typedef void (*Proc)(const PtProcRec&, const SkPoint devPts[], int count, 3058a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkBlitter*); 3068a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 3078a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com bool init(SkCanvas::PointMode, const SkPaint&, const SkMatrix* matrix, 308045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com const SkRasterClip*); 309045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com Proc chooseProc(SkBlitter** blitter); 310045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com 311045e62d715f5ee9b03deb5af3c750f8318096179reed@google.comprivate: 312045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com SkAAClipBlitterWrapper fWrapper; 3138a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com}; 3148a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 3158a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.comstatic void bw_pt_rect_hair_proc(const PtProcRec& rec, const SkPoint devPts[], 3168a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com int count, SkBlitter* blitter) { 3178a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkASSERT(rec.fClip->isRect()); 3188a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com const SkIRect& r = rec.fClip->getBounds(); 319a76de3d1a92134c3e95ad7fce99234f92fa48268reed@google.com 3208a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com for (int i = 0; i < count; i++) { 3218a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com int x = SkScalarFloor(devPts[i].fX); 3228a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com int y = SkScalarFloor(devPts[i].fY); 3238a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com if (r.contains(x, y)) { 3248a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com blitter->blitH(x, y, 1); 3258a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 3268a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 3278a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com} 3288a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 3298a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.comstatic void bw_pt_rect_16_hair_proc(const PtProcRec& rec, 3308a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com const SkPoint devPts[], int count, 3318a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkBlitter* blitter) { 332045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com SkASSERT(rec.fRC->isRect()); 333045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com const SkIRect& r = rec.fRC->getBounds(); 3348a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com uint32_t value; 3358a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com const SkBitmap* bitmap = blitter->justAnOpaqueColor(&value); 3368a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkASSERT(bitmap); 337a76de3d1a92134c3e95ad7fce99234f92fa48268reed@google.com 3388a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com uint16_t* addr = bitmap->getAddr16(0, 0); 3398a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com int rb = bitmap->rowBytes(); 3408a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 3418a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com for (int i = 0; i < count; i++) { 3428a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com int x = SkScalarFloor(devPts[i].fX); 3438a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com int y = SkScalarFloor(devPts[i].fY); 3448a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com if (r.contains(x, y)) { 3458a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com// *bitmap->getAddr16(x, y) = SkToU16(value); 3468a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com ((uint16_t*)((char*)addr + y * rb))[x] = SkToU16(value); 3478a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 3488a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 3498a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com} 3508a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 3518a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.comstatic void bw_pt_hair_proc(const PtProcRec& rec, const SkPoint devPts[], 3528a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com int count, SkBlitter* blitter) { 3538a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com for (int i = 0; i < count; i++) { 3548a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com int x = SkScalarFloor(devPts[i].fX); 3558a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com int y = SkScalarFloor(devPts[i].fY); 3568a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com if (rec.fClip->contains(x, y)) { 3578a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com blitter->blitH(x, y, 1); 3588a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 3598a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 3608a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com} 3618a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 3628a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.comstatic void bw_line_hair_proc(const PtProcRec& rec, const SkPoint devPts[], 3638a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com int count, SkBlitter* blitter) { 3648a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com for (int i = 0; i < count; i += 2) { 365045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com SkScan::HairLine(devPts[i], devPts[i+1], *rec.fRC, blitter); 3668a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 3678a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com} 3688a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 3698a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.comstatic void bw_poly_hair_proc(const PtProcRec& rec, const SkPoint devPts[], 3708a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com int count, SkBlitter* blitter) { 3718a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com for (int i = 0; i < count - 1; i++) { 372045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com SkScan::HairLine(devPts[i], devPts[i+1], *rec.fRC, blitter); 3738a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 3748a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com} 3758a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 3768a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com// aa versions 3778a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 3788a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.comstatic void aa_line_hair_proc(const PtProcRec& rec, const SkPoint devPts[], 3798a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com int count, SkBlitter* blitter) { 3808a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com for (int i = 0; i < count; i += 2) { 381045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com SkScan::AntiHairLine(devPts[i], devPts[i+1], *rec.fRC, blitter); 3828a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 3838a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com} 3848a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 3858a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.comstatic void aa_poly_hair_proc(const PtProcRec& rec, const SkPoint devPts[], 3868a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com int count, SkBlitter* blitter) { 3878a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com for (int i = 0; i < count - 1; i++) { 388045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com SkScan::AntiHairLine(devPts[i], devPts[i+1], *rec.fRC, blitter); 3898a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 3908a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com} 3918a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 3928a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com// square procs (strokeWidth > 0 but matrix is square-scale (sx == sy) 3938a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 3948a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.comstatic void bw_square_proc(const PtProcRec& rec, const SkPoint devPts[], 3958a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com int count, SkBlitter* blitter) { 3968a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com const SkFixed radius = rec.fRadius; 3978a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com for (int i = 0; i < count; i++) { 3988a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkFixed x = SkScalarToFixed(devPts[i].fX); 3998a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkFixed y = SkScalarToFixed(devPts[i].fY); 400a76de3d1a92134c3e95ad7fce99234f92fa48268reed@google.com 4018a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkXRect r; 4028a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com r.fLeft = x - radius; 4038a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com r.fTop = y - radius; 4048a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com r.fRight = x + radius; 4058a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com r.fBottom = y + radius; 406a76de3d1a92134c3e95ad7fce99234f92fa48268reed@google.com 407045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com SkScan::FillXRect(r, *rec.fRC, blitter); 4088a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 4098a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com} 4108a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 4118a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.comstatic void aa_square_proc(const PtProcRec& rec, const SkPoint devPts[], 4128a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com int count, SkBlitter* blitter) { 4138a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com const SkFixed radius = rec.fRadius; 4148a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com for (int i = 0; i < count; i++) { 4158a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkFixed x = SkScalarToFixed(devPts[i].fX); 4168a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkFixed y = SkScalarToFixed(devPts[i].fY); 417a76de3d1a92134c3e95ad7fce99234f92fa48268reed@google.com 4188a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkXRect r; 4198a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com r.fLeft = x - radius; 4208a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com r.fTop = y - radius; 4218a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com r.fRight = x + radius; 4228a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com r.fBottom = y + radius; 423a76de3d1a92134c3e95ad7fce99234f92fa48268reed@google.com 424045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com SkScan::AntiFillXRect(r, *rec.fRC, blitter); 4258a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 4268a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com} 4278a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 428b4f404ac4195e5b1f49e49c591bd69f98b246f9breed@android.com// If this guy returns true, then chooseProc() must return a valid proc 4298a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.combool PtProcRec::init(SkCanvas::PointMode mode, const SkPaint& paint, 430045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com const SkMatrix* matrix, const SkRasterClip* rc) { 4318a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com if (paint.getPathEffect()) { 4328a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com return false; 4338a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 4348a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkScalar width = paint.getStrokeWidth(); 4358a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com if (0 == width) { 4368a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com fMode = mode; 4378a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com fPaint = &paint; 438045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com fClip = NULL; 439045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com fRC = rc; 4408a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com fRadius = SK_Fixed1 >> 1; 4418a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com return true; 4428a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 443b4f404ac4195e5b1f49e49c591bd69f98b246f9breed@android.com if (paint.getStrokeCap() != SkPaint::kRound_Cap && 444b4f404ac4195e5b1f49e49c591bd69f98b246f9breed@android.com matrix->rectStaysRect() && SkCanvas::kPoints_PointMode == mode) { 4458a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkScalar sx = matrix->get(SkMatrix::kMScaleX); 4468a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkScalar sy = matrix->get(SkMatrix::kMScaleY); 4478a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com if (SkScalarNearlyZero(sx - sy)) { 4488a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com if (sx < 0) { 4498a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com sx = -sx; 4508a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 4518a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 4528a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com fMode = mode; 4538a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com fPaint = &paint; 454045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com fClip = NULL; 455045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com fRC = rc; 4568a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com fRadius = SkScalarToFixed(SkScalarMul(width, sx)) >> 1; 4578a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com return true; 4588a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 4598a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 4608a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com return false; 4618a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com} 4628a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 463045e62d715f5ee9b03deb5af3c750f8318096179reed@google.comPtProcRec::Proc PtProcRec::chooseProc(SkBlitter** blitterPtr) { 464b4f404ac4195e5b1f49e49c591bd69f98b246f9breed@android.com Proc proc = NULL; 465a76de3d1a92134c3e95ad7fce99234f92fa48268reed@google.com 466045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com SkBlitter* blitter = *blitterPtr; 467045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com if (fRC->isBW()) { 468045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com fClip = &fRC->bwRgn(); 469045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com } else { 470045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com fWrapper.init(*fRC, blitter); 471045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com fClip = &fWrapper.getRgn(); 472045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com blitter = fWrapper.getBlitter(); 473045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com *blitterPtr = blitter; 474045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com } 475045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com 4768a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com // for our arrays 4778a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkASSERT(0 == SkCanvas::kPoints_PointMode); 4788a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkASSERT(1 == SkCanvas::kLines_PointMode); 4798a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkASSERT(2 == SkCanvas::kPolygon_PointMode); 4808a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkASSERT((unsigned)fMode <= (unsigned)SkCanvas::kPolygon_PointMode); 4818a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 4828a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com // first check for hairlines 4838a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com if (0 == fPaint->getStrokeWidth()) { 4848a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com if (fPaint->isAntiAlias()) { 4858a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com static const Proc gAAProcs[] = { 4868a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com aa_square_proc, aa_line_hair_proc, aa_poly_hair_proc 4878a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com }; 4888a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com proc = gAAProcs[fMode]; 4898a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } else { 4908a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com if (SkCanvas::kPoints_PointMode == fMode && fClip->isRect()) { 4918a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com uint32_t value; 4928a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com const SkBitmap* bm = blitter->justAnOpaqueColor(&value); 4938a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com if (bm && bm->config() == SkBitmap::kRGB_565_Config) { 4948a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com proc = bw_pt_rect_16_hair_proc; 4958a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } else { 4968a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com proc = bw_pt_rect_hair_proc; 4978a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 4988a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } else { 4998a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com static Proc gBWProcs[] = { 5008a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com bw_pt_hair_proc, bw_line_hair_proc, bw_poly_hair_proc 5018a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com }; 5028a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com proc = gBWProcs[fMode]; 5038a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 5048a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 505b4f404ac4195e5b1f49e49c591bd69f98b246f9breed@android.com } else if (fPaint->getStrokeCap() != SkPaint::kRound_Cap) { 5068a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkASSERT(SkCanvas::kPoints_PointMode == fMode); 5078a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com if (fPaint->isAntiAlias()) { 5088a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com proc = aa_square_proc; 5098a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } else { 5108a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com proc = bw_square_proc; 5118a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 5128a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 5138a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com return proc; 5148a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com} 5158a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 5168a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.comstatic bool bounder_points(SkBounder* bounder, SkCanvas::PointMode mode, 5178a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com size_t count, const SkPoint pts[], 5188a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com const SkPaint& paint, const SkMatrix& matrix) { 5198a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkIRect ibounds; 5208a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkRect bounds; 5218a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkScalar inset = paint.getStrokeWidth(); 5228a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 5238a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com bounds.set(pts, count); 5248a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com bounds.inset(-inset, -inset); 5258a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com matrix.mapRect(&bounds); 5268a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 5278a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com bounds.roundOut(&ibounds); 5288a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com return bounder->doIRect(ibounds); 5298a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com} 5308a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 5318a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com// each of these costs 8-bytes of stack space, so don't make it too large 5328a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com// must be even for lines/polygon to work 5338a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com#define MAX_DEV_PTS 32 5348a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 5358a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.comvoid SkDraw::drawPoints(SkCanvas::PointMode mode, size_t count, 536f2b98d67dcb6fcb3120feede9c72016fc7b3ead8reed@android.com const SkPoint pts[], const SkPaint& paint, 537f2b98d67dcb6fcb3120feede9c72016fc7b3ead8reed@android.com bool forceUseDevice) const { 5388a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com // if we're in lines mode, force count to be even 5398a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com if (SkCanvas::kLines_PointMode == mode) { 5408a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com count &= ~(size_t)1; 5418a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 5428a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 5438a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com if ((long)count <= 0) { 5448a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com return; 5458a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 546a76de3d1a92134c3e95ad7fce99234f92fa48268reed@google.com 5478a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkASSERT(pts != NULL); 548f2b98d67dcb6fcb3120feede9c72016fc7b3ead8reed@android.com SkDEBUGCODE(this->validate();) 549a76de3d1a92134c3e95ad7fce99234f92fa48268reed@google.com 5508a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com // nothing to draw 551045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com if (fRC->isEmpty()) { 5528a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com return; 5538a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 5548a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 555fd4236ecc1d5eb1bb48ca9dc33df5e9051c3036ereed@google.com if (fBounder) { 556fd4236ecc1d5eb1bb48ca9dc33df5e9051c3036ereed@google.com if (!bounder_points(fBounder, mode, count, pts, paint, *fMatrix)) { 557fd4236ecc1d5eb1bb48ca9dc33df5e9051c3036ereed@google.com return; 558fd4236ecc1d5eb1bb48ca9dc33df5e9051c3036ereed@google.com } 559fbfcd5602128ec010c82cb733c9cdc0a3254f9f3rmistry@google.com 560fd4236ecc1d5eb1bb48ca9dc33df5e9051c3036ereed@google.com // clear the bounder and call this again, so we don't invoke the bounder 561fd4236ecc1d5eb1bb48ca9dc33df5e9051c3036ereed@google.com // later if we happen to call ourselves for drawRect, drawPath, etc. 562fd4236ecc1d5eb1bb48ca9dc33df5e9051c3036ereed@google.com SkDraw noBounder(*this); 563fd4236ecc1d5eb1bb48ca9dc33df5e9051c3036ereed@google.com noBounder.fBounder = NULL; 564fd4236ecc1d5eb1bb48ca9dc33df5e9051c3036ereed@google.com noBounder.drawPoints(mode, count, pts, paint, forceUseDevice); 565fd4236ecc1d5eb1bb48ca9dc33df5e9051c3036ereed@google.com return; 566fd4236ecc1d5eb1bb48ca9dc33df5e9051c3036ereed@google.com } 567fbfcd5602128ec010c82cb733c9cdc0a3254f9f3rmistry@google.com 5688a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com PtProcRec rec; 569045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com if (!forceUseDevice && rec.init(mode, paint, fMatrix, fRC)) { 5708a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkAutoBlitterChoose blitter(*fBitmap, *fMatrix, paint); 5718a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 5728a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkPoint devPts[MAX_DEV_PTS]; 5738a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com const SkMatrix* matrix = fMatrix; 5748a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkBlitter* bltr = blitter.get(); 575045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com PtProcRec::Proc proc = rec.chooseProc(&bltr); 5768a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com // we have to back up subsequent passes if we're in polygon mode 5778a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com const size_t backup = (SkCanvas::kPolygon_PointMode == mode); 578a76de3d1a92134c3e95ad7fce99234f92fa48268reed@google.com 5798a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com do { 5808a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com size_t n = count; 5818a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com if (n > MAX_DEV_PTS) { 5828a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com n = MAX_DEV_PTS; 5838a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 5848a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com matrix->mapPoints(devPts, pts, n); 5858a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com proc(rec, devPts, n, bltr); 5868a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com pts += n - backup; 5878a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkASSERT(count >= n); 5888a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com count -= n; 5898a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com if (count > 0) { 5908a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com count += backup; 5918a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 5928a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } while (count != 0); 5938a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } else { 5948a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com switch (mode) { 5958a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com case SkCanvas::kPoints_PointMode: { 5968a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com // temporarily mark the paint as filling. 59740c2ba27b6e5c6a4b6c073264f8c0a7c86355abereed@google.com SkPaint newPaint(paint); 59840c2ba27b6e5c6a4b6c073264f8c0a7c86355abereed@google.com newPaint.setStyle(SkPaint::kFill_Style); 5998a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 60040c2ba27b6e5c6a4b6c073264f8c0a7c86355abereed@google.com SkScalar width = newPaint.getStrokeWidth(); 6018a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkScalar radius = SkScalarHalf(width); 602a76de3d1a92134c3e95ad7fce99234f92fa48268reed@google.com 60340c2ba27b6e5c6a4b6c073264f8c0a7c86355abereed@google.com if (newPaint.getStrokeCap() == SkPaint::kRound_Cap) { 6048a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkPath path; 6058a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkMatrix preMatrix; 606a76de3d1a92134c3e95ad7fce99234f92fa48268reed@google.com 6078a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com path.addCircle(0, 0, radius); 6088a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com for (size_t i = 0; i < count; i++) { 6098a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com preMatrix.setTranslate(pts[i].fX, pts[i].fY); 6108a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com // pass true for the last point, since we can modify 6118a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com // then path then 612f2b98d67dcb6fcb3120feede9c72016fc7b3ead8reed@android.com if (fDevice) { 61340c2ba27b6e5c6a4b6c073264f8c0a7c86355abereed@google.com fDevice->drawPath(*this, path, newPaint, &preMatrix, 614f2b98d67dcb6fcb3120feede9c72016fc7b3ead8reed@android.com (count-1) == i); 615f2b98d67dcb6fcb3120feede9c72016fc7b3ead8reed@android.com } else { 61640c2ba27b6e5c6a4b6c073264f8c0a7c86355abereed@google.com this->drawPath(path, newPaint, &preMatrix, 61740c2ba27b6e5c6a4b6c073264f8c0a7c86355abereed@google.com (count-1) == i); 618f2b98d67dcb6fcb3120feede9c72016fc7b3ead8reed@android.com } 6198a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 6208a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } else { 6218a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkRect r; 622a76de3d1a92134c3e95ad7fce99234f92fa48268reed@google.com 6238a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com for (size_t i = 0; i < count; i++) { 6248a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com r.fLeft = pts[i].fX - radius; 6258a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com r.fTop = pts[i].fY - radius; 6268a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com r.fRight = r.fLeft + width; 6278a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com r.fBottom = r.fTop + width; 628f2b98d67dcb6fcb3120feede9c72016fc7b3ead8reed@android.com if (fDevice) { 62940c2ba27b6e5c6a4b6c073264f8c0a7c86355abereed@google.com fDevice->drawRect(*this, r, newPaint); 630f2b98d67dcb6fcb3120feede9c72016fc7b3ead8reed@android.com } else { 63140c2ba27b6e5c6a4b6c073264f8c0a7c86355abereed@google.com this->drawRect(r, newPaint); 632f2b98d67dcb6fcb3120feede9c72016fc7b3ead8reed@android.com } 6338a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 6348a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 6358a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com break; 6368a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 6378a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com case SkCanvas::kLines_PointMode: 6388a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com case SkCanvas::kPolygon_PointMode: { 6398a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com count -= 1; 6408a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkPath path; 6418a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkPaint p(paint); 6428a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com p.setStyle(SkPaint::kStroke_Style); 6438a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com size_t inc = (SkCanvas::kLines_PointMode == mode) ? 2 : 1; 6448a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com for (size_t i = 0; i < count; i += inc) { 6458a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com path.moveTo(pts[i]); 6468a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com path.lineTo(pts[i+1]); 647f2b98d67dcb6fcb3120feede9c72016fc7b3ead8reed@android.com if (fDevice) { 648f2b98d67dcb6fcb3120feede9c72016fc7b3ead8reed@android.com fDevice->drawPath(*this, path, p, NULL, true); 649f2b98d67dcb6fcb3120feede9c72016fc7b3ead8reed@android.com } else { 650f2b98d67dcb6fcb3120feede9c72016fc7b3ead8reed@android.com this->drawPath(path, p, NULL, true); 651f2b98d67dcb6fcb3120feede9c72016fc7b3ead8reed@android.com } 6528a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com path.rewind(); 6538a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 6548a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com break; 6558a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 6568a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 6578a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 6588a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com} 6598a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 6608a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.comstatic inline SkPoint* as_lefttop(SkRect* r) { 6618a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com return (SkPoint*)(void*)r; 6628a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com} 6638a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 6648a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.comstatic inline SkPoint* as_rightbottom(SkRect* r) { 6658a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com return ((SkPoint*)(void*)r) + 1; 6668a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com} 6678a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 668761fb62b0eb174783316d2a8b933fba896ca6355reed@google.comstatic bool easy_rect_join(const SkPaint& paint, const SkMatrix& matrix, 669761fb62b0eb174783316d2a8b933fba896ca6355reed@google.com SkPoint* strokeSize) { 670761fb62b0eb174783316d2a8b933fba896ca6355reed@google.com if (SkPaint::kMiter_Join != paint.getStrokeJoin() || 671761fb62b0eb174783316d2a8b933fba896ca6355reed@google.com paint.getStrokeMiter() < SK_ScalarSqrt2) { 672761fb62b0eb174783316d2a8b933fba896ca6355reed@google.com return false; 673761fb62b0eb174783316d2a8b933fba896ca6355reed@google.com } 674fbfcd5602128ec010c82cb733c9cdc0a3254f9f3rmistry@google.com 675761fb62b0eb174783316d2a8b933fba896ca6355reed@google.com SkASSERT(matrix.rectStaysRect()); 676761fb62b0eb174783316d2a8b933fba896ca6355reed@google.com SkPoint pt = { paint.getStrokeWidth(), paint.getStrokeWidth() }; 677761fb62b0eb174783316d2a8b933fba896ca6355reed@google.com matrix.mapVectors(strokeSize, &pt, 1); 6786115338c59799b4ef09cda187f23867dea093f6ereed@google.com strokeSize->fX = SkScalarAbs(strokeSize->fX); 6796115338c59799b4ef09cda187f23867dea093f6ereed@google.com strokeSize->fY = SkScalarAbs(strokeSize->fY); 680761fb62b0eb174783316d2a8b933fba896ca6355reed@google.com return true; 6817ff678bc1618dc669648198a7bdca8adfb189505mike@reedtribe.org} 6827ff678bc1618dc669648198a7bdca8adfb189505mike@reedtribe.org 68362ab7addb06bbc5b93460eaf2f70a9f8399308d3reed@google.comSkDraw::RectType SkDraw::ComputeRectType(const SkPaint& paint, 68462ab7addb06bbc5b93460eaf2f70a9f8399308d3reed@google.com const SkMatrix& matrix, 68562ab7addb06bbc5b93460eaf2f70a9f8399308d3reed@google.com SkPoint* strokeSize) { 6867ff678bc1618dc669648198a7bdca8adfb189505mike@reedtribe.org RectType rtype; 6877ff678bc1618dc669648198a7bdca8adfb189505mike@reedtribe.org const SkScalar width = paint.getStrokeWidth(); 68862ab7addb06bbc5b93460eaf2f70a9f8399308d3reed@google.com const bool zeroWidth = (0 == width); 6897ff678bc1618dc669648198a7bdca8adfb189505mike@reedtribe.org SkPaint::Style style = paint.getStyle(); 690fbfcd5602128ec010c82cb733c9cdc0a3254f9f3rmistry@google.com 6917ff678bc1618dc669648198a7bdca8adfb189505mike@reedtribe.org if ((SkPaint::kStrokeAndFill_Style == style) && zeroWidth) { 6927ff678bc1618dc669648198a7bdca8adfb189505mike@reedtribe.org style = SkPaint::kFill_Style; 6937ff678bc1618dc669648198a7bdca8adfb189505mike@reedtribe.org } 694fbfcd5602128ec010c82cb733c9cdc0a3254f9f3rmistry@google.com 6958a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com if (paint.getPathEffect() || paint.getMaskFilter() || 69662ab7addb06bbc5b93460eaf2f70a9f8399308d3reed@google.com paint.getRasterizer() || !matrix.rectStaysRect() || 6977ff678bc1618dc669648198a7bdca8adfb189505mike@reedtribe.org SkPaint::kStrokeAndFill_Style == style) { 69862ab7addb06bbc5b93460eaf2f70a9f8399308d3reed@google.com rtype = kPath_RectType; 69962ab7addb06bbc5b93460eaf2f70a9f8399308d3reed@google.com } else if (SkPaint::kFill_Style == style) { 7007ff678bc1618dc669648198a7bdca8adfb189505mike@reedtribe.org rtype = kFill_RectType; 7017ff678bc1618dc669648198a7bdca8adfb189505mike@reedtribe.org } else if (zeroWidth) { 7027ff678bc1618dc669648198a7bdca8adfb189505mike@reedtribe.org rtype = kHair_RectType; 70362ab7addb06bbc5b93460eaf2f70a9f8399308d3reed@google.com } else if (easy_rect_join(paint, matrix, strokeSize)) { 7047ff678bc1618dc669648198a7bdca8adfb189505mike@reedtribe.org rtype = kStroke_RectType; 7057ff678bc1618dc669648198a7bdca8adfb189505mike@reedtribe.org } else { 7067ff678bc1618dc669648198a7bdca8adfb189505mike@reedtribe.org rtype = kPath_RectType; 7077ff678bc1618dc669648198a7bdca8adfb189505mike@reedtribe.org } 70862ab7addb06bbc5b93460eaf2f70a9f8399308d3reed@google.com return rtype; 70962ab7addb06bbc5b93460eaf2f70a9f8399308d3reed@google.com} 71062ab7addb06bbc5b93460eaf2f70a9f8399308d3reed@google.com 7117324415759fe0c5a0902877b664aa942a89bd940reed@google.comstatic const SkPoint* rect_points(const SkRect& r) { 7127324415759fe0c5a0902877b664aa942a89bd940reed@google.com return (const SkPoint*)(void*)&r; 7137324415759fe0c5a0902877b664aa942a89bd940reed@google.com} 7147324415759fe0c5a0902877b664aa942a89bd940reed@google.com 7157324415759fe0c5a0902877b664aa942a89bd940reed@google.comstatic SkPoint* rect_points(SkRect& r) { 7167324415759fe0c5a0902877b664aa942a89bd940reed@google.com return (SkPoint*)(void*)&r; 71740c2ba27b6e5c6a4b6c073264f8c0a7c86355abereed@google.com} 71840c2ba27b6e5c6a4b6c073264f8c0a7c86355abereed@google.com 71962ab7addb06bbc5b93460eaf2f70a9f8399308d3reed@google.comvoid SkDraw::drawRect(const SkRect& rect, const SkPaint& paint) const { 72062ab7addb06bbc5b93460eaf2f70a9f8399308d3reed@google.com SkDEBUGCODE(this->validate();) 7217ff678bc1618dc669648198a7bdca8adfb189505mike@reedtribe.org 72262ab7addb06bbc5b93460eaf2f70a9f8399308d3reed@google.com // nothing to draw 723045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com if (fRC->isEmpty()) { 72462ab7addb06bbc5b93460eaf2f70a9f8399308d3reed@google.com return; 72562ab7addb06bbc5b93460eaf2f70a9f8399308d3reed@google.com } 72662ab7addb06bbc5b93460eaf2f70a9f8399308d3reed@google.com 72762ab7addb06bbc5b93460eaf2f70a9f8399308d3reed@google.com SkPoint strokeSize; 72862ab7addb06bbc5b93460eaf2f70a9f8399308d3reed@google.com RectType rtype = ComputeRectType(paint, *fMatrix, &strokeSize); 72962ab7addb06bbc5b93460eaf2f70a9f8399308d3reed@google.com 73062ab7addb06bbc5b93460eaf2f70a9f8399308d3reed@google.com#ifdef SK_DISABLE_FAST_AA_STROKE_RECT 73162ab7addb06bbc5b93460eaf2f70a9f8399308d3reed@google.com if (kStroke_RectType == rtype && paint.isAntiAlias()) { 73262ab7addb06bbc5b93460eaf2f70a9f8399308d3reed@google.com rtype = kPath_RectType; 73362ab7addb06bbc5b93460eaf2f70a9f8399308d3reed@google.com } 73462ab7addb06bbc5b93460eaf2f70a9f8399308d3reed@google.com#endif 735045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com 7367ff678bc1618dc669648198a7bdca8adfb189505mike@reedtribe.org if (kPath_RectType == rtype) { 7378a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkPath tmp; 7388a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com tmp.addRect(rect); 7398a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com tmp.setFillType(SkPath::kWinding_FillType); 740187d5595901d1120d9425851e5afdd773f574502reed@android.com this->drawPath(tmp, paint, NULL, true); 7418a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com return; 7428a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 7438a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 7448a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com const SkMatrix& matrix = *fMatrix; 7458a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkRect devRect; 7468a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 7478a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com // transform rect into devRect 7487324415759fe0c5a0902877b664aa942a89bd940reed@google.com matrix.mapPoints(rect_points(devRect), rect_points(rect), 2); 7497324415759fe0c5a0902877b664aa942a89bd940reed@google.com devRect.sort(); 7508a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 7518a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com if (fBounder && !fBounder->doRect(devRect, paint)) { 7528a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com return; 7538a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 7548a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 7558a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com // look for the quick exit, before we build a blitter 7567324415759fe0c5a0902877b664aa942a89bd940reed@google.com if (true) { 7578a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkIRect ir; 7588a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com devRect.roundOut(&ir); 75955e76b209c9249308a9ba3d75c2472dd55e9d298reed@android.com if (paint.getStyle() != SkPaint::kFill_Style) { 76055e76b209c9249308a9ba3d75c2472dd55e9d298reed@android.com // extra space for hairlines 76155e76b209c9249308a9ba3d75c2472dd55e9d298reed@android.com ir.inset(-1, -1); 76255e76b209c9249308a9ba3d75c2472dd55e9d298reed@android.com } 763045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com if (fRC->quickReject(ir)) 7648a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com return; 7658a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 7668a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 7678a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkAutoBlitterChoose blitterStorage(*fBitmap, matrix, paint); 768045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com const SkRasterClip& clip = *fRC; 7698a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkBlitter* blitter = blitterStorage.get(); 7708a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 771b641c9f20beb36dbf4e8df53a199c84cef3be9b2reed@android.com // we want to "fill" if we are kFill or kStrokeAndFill, since in the latter 772b641c9f20beb36dbf4e8df53a199c84cef3be9b2reed@android.com // case we are also hairline (if we've gotten to here), which devolves to 773b641c9f20beb36dbf4e8df53a199c84cef3be9b2reed@android.com // effectively just kFill 7747ff678bc1618dc669648198a7bdca8adfb189505mike@reedtribe.org switch (rtype) { 7757ff678bc1618dc669648198a7bdca8adfb189505mike@reedtribe.org case kFill_RectType: 7767ff678bc1618dc669648198a7bdca8adfb189505mike@reedtribe.org if (paint.isAntiAlias()) { 7777ff678bc1618dc669648198a7bdca8adfb189505mike@reedtribe.org SkScan::AntiFillRect(devRect, clip, blitter); 7787ff678bc1618dc669648198a7bdca8adfb189505mike@reedtribe.org } else { 7797ff678bc1618dc669648198a7bdca8adfb189505mike@reedtribe.org SkScan::FillRect(devRect, clip, blitter); 7807ff678bc1618dc669648198a7bdca8adfb189505mike@reedtribe.org } 7817ff678bc1618dc669648198a7bdca8adfb189505mike@reedtribe.org break; 7827ff678bc1618dc669648198a7bdca8adfb189505mike@reedtribe.org case kStroke_RectType: 7837ff678bc1618dc669648198a7bdca8adfb189505mike@reedtribe.org if (paint.isAntiAlias()) { 784761fb62b0eb174783316d2a8b933fba896ca6355reed@google.com SkScan::AntiFrameRect(devRect, strokeSize, clip, blitter); 7857ff678bc1618dc669648198a7bdca8adfb189505mike@reedtribe.org } else { 786761fb62b0eb174783316d2a8b933fba896ca6355reed@google.com SkScan::FrameRect(devRect, strokeSize, clip, blitter); 7877ff678bc1618dc669648198a7bdca8adfb189505mike@reedtribe.org } 7887ff678bc1618dc669648198a7bdca8adfb189505mike@reedtribe.org break; 7897ff678bc1618dc669648198a7bdca8adfb189505mike@reedtribe.org case kHair_RectType: 7907ff678bc1618dc669648198a7bdca8adfb189505mike@reedtribe.org if (paint.isAntiAlias()) { 7917ff678bc1618dc669648198a7bdca8adfb189505mike@reedtribe.org SkScan::AntiHairRect(devRect, clip, blitter); 7927ff678bc1618dc669648198a7bdca8adfb189505mike@reedtribe.org } else { 7937ff678bc1618dc669648198a7bdca8adfb189505mike@reedtribe.org SkScan::HairRect(devRect, clip, blitter); 7947ff678bc1618dc669648198a7bdca8adfb189505mike@reedtribe.org } 7957ff678bc1618dc669648198a7bdca8adfb189505mike@reedtribe.org break; 7967ff678bc1618dc669648198a7bdca8adfb189505mike@reedtribe.org default: 7970c00f21fee3f5cfa3aa7e5d46ff94cb8cf340451tomhudson@google.com SkDEBUGFAIL("bad rtype"); 7988a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 7998a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com} 8008a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 8018a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.comvoid SkDraw::drawDevMask(const SkMask& srcM, const SkPaint& paint) const { 8028a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com if (srcM.fBounds.isEmpty()) { 8038a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com return; 8048a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 8058a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 8060a60b3d32eae945688b69599f11679662657f751bungeman@google.com const SkMask* mask = &srcM; 8078a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 8080a60b3d32eae945688b69599f11679662657f751bungeman@google.com SkMask dstM; 8098a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com if (paint.getMaskFilter() && 8108a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com paint.getMaskFilter()->filterMask(&dstM, srcM, *fMatrix, NULL)) { 8118a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com mask = &dstM; 812bf2ac7e52f84095368dc50600fd6e78cc96044e3bungeman@google.com } else { 813bf2ac7e52f84095368dc50600fd6e78cc96044e3bungeman@google.com dstM.fImage = NULL; 8148a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 81502f55841854ae32f21a13417e9ee711463e488cfbungeman@google.com SkAutoMaskFreeImage ami(dstM.fImage); 8168a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 8178a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com if (fBounder && !fBounder->doIRect(mask->fBounds)) { 8188a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com return; 8198a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 8208a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 821045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com SkAutoBlitterChoose blitterChooser(*fBitmap, *fMatrix, paint); 822045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com SkBlitter* blitter = blitterChooser.get(); 823045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com 824045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com SkAAClipBlitterWrapper wrapper; 825045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com const SkRegion* clipRgn; 8268a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 827045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com if (fRC->isBW()) { 828045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com clipRgn = &fRC->bwRgn(); 829045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com } else { 830045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com wrapper.init(*fRC, blitter); 831045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com clipRgn = &wrapper.getRgn(); 832045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com blitter = wrapper.getBlitter(); 833045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com } 834045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com blitter->blitMaskRegion(*mask, *clipRgn); 8358a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com} 8368a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 837ebdeeb8a018f2df01e190fd961d68a94f0e0fcb9reed@android.comstatic SkScalar fast_len(const SkVector& vec) { 838ebdeeb8a018f2df01e190fd961d68a94f0e0fcb9reed@android.com SkScalar x = SkScalarAbs(vec.fX); 839ebdeeb8a018f2df01e190fd961d68a94f0e0fcb9reed@android.com SkScalar y = SkScalarAbs(vec.fY); 840ebdeeb8a018f2df01e190fd961d68a94f0e0fcb9reed@android.com if (x < y) { 841ebdeeb8a018f2df01e190fd961d68a94f0e0fcb9reed@android.com SkTSwap(x, y); 842ebdeeb8a018f2df01e190fd961d68a94f0e0fcb9reed@android.com } 843ebdeeb8a018f2df01e190fd961d68a94f0e0fcb9reed@android.com return x + SkScalarHalf(y); 844ebdeeb8a018f2df01e190fd961d68a94f0e0fcb9reed@android.com} 845ebdeeb8a018f2df01e190fd961d68a94f0e0fcb9reed@android.com 846ecadf99c8450646dfd9c2754f3e845245beab8b6reed@google.comstatic bool xfermodeSupportsCoverageAsAlpha(SkXfermode* xfer) { 847ecadf99c8450646dfd9c2754f3e845245beab8b6reed@google.com SkXfermode::Coeff dc; 848ecadf99c8450646dfd9c2754f3e845245beab8b6reed@google.com if (!SkXfermode::AsCoeff(xfer, NULL, &dc)) { 849ecadf99c8450646dfd9c2754f3e845245beab8b6reed@google.com return false; 850ecadf99c8450646dfd9c2754f3e845245beab8b6reed@google.com } 851fbfcd5602128ec010c82cb733c9cdc0a3254f9f3rmistry@google.com 852ecadf99c8450646dfd9c2754f3e845245beab8b6reed@google.com switch (dc) { 853ecadf99c8450646dfd9c2754f3e845245beab8b6reed@google.com case SkXfermode::kOne_Coeff: 854ecadf99c8450646dfd9c2754f3e845245beab8b6reed@google.com case SkXfermode::kISA_Coeff: 855ecadf99c8450646dfd9c2754f3e845245beab8b6reed@google.com case SkXfermode::kISC_Coeff: 856ecadf99c8450646dfd9c2754f3e845245beab8b6reed@google.com return true; 857ecadf99c8450646dfd9c2754f3e845245beab8b6reed@google.com default: 858ecadf99c8450646dfd9c2754f3e845245beab8b6reed@google.com return false; 859ecadf99c8450646dfd9c2754f3e845245beab8b6reed@google.com } 860ecadf99c8450646dfd9c2754f3e845245beab8b6reed@google.com} 861ecadf99c8450646dfd9c2754f3e845245beab8b6reed@google.com 862ecadf99c8450646dfd9c2754f3e845245beab8b6reed@google.combool SkDrawTreatAsHairline(const SkPaint& paint, const SkMatrix& matrix, 863dd1be60702b3622f49d97651e31d13eaf2175cf8bsalomon@google.com SkScalar* coverage) { 864dd1be60702b3622f49d97651e31d13eaf2175cf8bsalomon@google.com SkASSERT(coverage); 865ecadf99c8450646dfd9c2754f3e845245beab8b6reed@google.com if (SkPaint::kStroke_Style != paint.getStyle()) { 866ecadf99c8450646dfd9c2754f3e845245beab8b6reed@google.com return false; 867ecadf99c8450646dfd9c2754f3e845245beab8b6reed@google.com } 868ecadf99c8450646dfd9c2754f3e845245beab8b6reed@google.com SkScalar strokeWidth = paint.getStrokeWidth(); 869ecadf99c8450646dfd9c2754f3e845245beab8b6reed@google.com if (0 == strokeWidth) { 870dd1be60702b3622f49d97651e31d13eaf2175cf8bsalomon@google.com *coverage = SK_Scalar1; 871ecadf99c8450646dfd9c2754f3e845245beab8b6reed@google.com return true; 872ecadf99c8450646dfd9c2754f3e845245beab8b6reed@google.com } 873ecadf99c8450646dfd9c2754f3e845245beab8b6reed@google.com 874ecadf99c8450646dfd9c2754f3e845245beab8b6reed@google.com // if we get here, we need to try to fake a thick-stroke with a modulated 875ecadf99c8450646dfd9c2754f3e845245beab8b6reed@google.com // hairline 876ecadf99c8450646dfd9c2754f3e845245beab8b6reed@google.com 877ecadf99c8450646dfd9c2754f3e845245beab8b6reed@google.com if (!paint.isAntiAlias()) { 878ecadf99c8450646dfd9c2754f3e845245beab8b6reed@google.com return false; 879ecadf99c8450646dfd9c2754f3e845245beab8b6reed@google.com } 8808d430185e08d2067584837a76b7193b803fee7a0tomhudson@google.com if (matrix.hasPerspective()) { 881ebdeeb8a018f2df01e190fd961d68a94f0e0fcb9reed@android.com return false; 882ebdeeb8a018f2df01e190fd961d68a94f0e0fcb9reed@android.com } 883ecadf99c8450646dfd9c2754f3e845245beab8b6reed@google.com 884ebdeeb8a018f2df01e190fd961d68a94f0e0fcb9reed@android.com SkVector src[2], dst[2]; 885ecadf99c8450646dfd9c2754f3e845245beab8b6reed@google.com src[0].set(strokeWidth, 0); 886ecadf99c8450646dfd9c2754f3e845245beab8b6reed@google.com src[1].set(0, strokeWidth); 887ebdeeb8a018f2df01e190fd961d68a94f0e0fcb9reed@android.com matrix.mapVectors(dst, src, 2); 888ebdeeb8a018f2df01e190fd961d68a94f0e0fcb9reed@android.com SkScalar len0 = fast_len(dst[0]); 889ebdeeb8a018f2df01e190fd961d68a94f0e0fcb9reed@android.com SkScalar len1 = fast_len(dst[1]); 890652807bbc8c57e5fa9622126b51fd369f5c67935agl@chromium.org if (len0 <= SK_Scalar1 && len1 <= SK_Scalar1) { 891dd1be60702b3622f49d97651e31d13eaf2175cf8bsalomon@google.com *coverage = SkScalarAve(len0, len1); 892ebdeeb8a018f2df01e190fd961d68a94f0e0fcb9reed@android.com return true; 893ebdeeb8a018f2df01e190fd961d68a94f0e0fcb9reed@android.com } 894ebdeeb8a018f2df01e190fd961d68a94f0e0fcb9reed@android.com return false; 895ebdeeb8a018f2df01e190fd961d68a94f0e0fcb9reed@android.com} 896ebdeeb8a018f2df01e190fd961d68a94f0e0fcb9reed@android.com 89732e5d97ccf60f859db063ebd6e903c362e625767reed@google.comvoid SkDraw::drawPath(const SkPath& origSrcPath, const SkPaint& origPaint, 8988a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com const SkMatrix* prePathMatrix, bool pathIsMutable) const { 899f2b98d67dcb6fcb3120feede9c72016fc7b3ead8reed@android.com SkDEBUGCODE(this->validate();) 9008a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 9018a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com // nothing to draw 902045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com if (fRC->isEmpty()) { 9038a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com return; 9048a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 9058a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 9068a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkPath* pathPtr = (SkPath*)&origSrcPath; 9078a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com bool doFill = true; 9088a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkPath tmpPath; 9098a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkMatrix tmpMatrix; 9108a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com const SkMatrix* matrix = fMatrix; 9118a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 9128a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com if (prePathMatrix) { 91332e5d97ccf60f859db063ebd6e903c362e625767reed@google.com if (origPaint.getPathEffect() || origPaint.getStyle() != SkPaint::kFill_Style || 91432e5d97ccf60f859db063ebd6e903c362e625767reed@google.com origPaint.getRasterizer()) { 9158a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkPath* result = pathPtr; 916a76de3d1a92134c3e95ad7fce99234f92fa48268reed@google.com 9178a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com if (!pathIsMutable) { 9188a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com result = &tmpPath; 9198a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com pathIsMutable = true; 9208a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 9218a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com pathPtr->transform(*prePathMatrix, result); 9228a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com pathPtr = result; 9238a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } else { 9248a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com if (!tmpMatrix.setConcat(*matrix, *prePathMatrix)) { 9258a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com // overflow 9268a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com return; 9278a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 9288a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com matrix = &tmpMatrix; 9298a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 9308a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 9318a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com // at this point we're done with prePathMatrix 9328a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkDEBUGCODE(prePathMatrix = (const SkMatrix*)0x50FF8001;) 933a76de3d1a92134c3e95ad7fce99234f92fa48268reed@google.com 9345dc26b97366934ba0f896cea02a3fec027d5d5c1bsalomon@google.com SkTCopyOnFirstWrite<SkPaint> paint(origPaint); 935a76de3d1a92134c3e95ad7fce99234f92fa48268reed@google.com 936ecadf99c8450646dfd9c2754f3e845245beab8b6reed@google.com { 937dd1be60702b3622f49d97651e31d13eaf2175cf8bsalomon@google.com SkScalar coverage; 938dd1be60702b3622f49d97651e31d13eaf2175cf8bsalomon@google.com if (SkDrawTreatAsHairline(origPaint, *matrix, &coverage)) { 939dd1be60702b3622f49d97651e31d13eaf2175cf8bsalomon@google.com if (SK_Scalar1 == coverage) { 9405dc26b97366934ba0f896cea02a3fec027d5d5c1bsalomon@google.com paint.writable()->setStrokeWidth(0); 941dd1be60702b3622f49d97651e31d13eaf2175cf8bsalomon@google.com } else if (xfermodeSupportsCoverageAsAlpha(origPaint.getXfermode())) { 942dd1be60702b3622f49d97651e31d13eaf2175cf8bsalomon@google.com U8CPU newAlpha; 943dd1be60702b3622f49d97651e31d13eaf2175cf8bsalomon@google.com#if 0 944dd1be60702b3622f49d97651e31d13eaf2175cf8bsalomon@google.com newAlpha = SkToU8(SkScalarRoundToInt(coverage * 945dd1be60702b3622f49d97651e31d13eaf2175cf8bsalomon@google.com origPaint.getAlpha())); 946dd1be60702b3622f49d97651e31d13eaf2175cf8bsalomon@google.com#else 947dd1be60702b3622f49d97651e31d13eaf2175cf8bsalomon@google.com // this is the old technique, which we preserve for now so 948dd1be60702b3622f49d97651e31d13eaf2175cf8bsalomon@google.com // we don't change previous results (testing) 949dd1be60702b3622f49d97651e31d13eaf2175cf8bsalomon@google.com // the new way seems fine, its just (a tiny bit) different 950dd1be60702b3622f49d97651e31d13eaf2175cf8bsalomon@google.com int scale = (int)SkScalarMul(coverage, 256); 951dd1be60702b3622f49d97651e31d13eaf2175cf8bsalomon@google.com newAlpha = origPaint.getAlpha() * scale >> 8; 952dd1be60702b3622f49d97651e31d13eaf2175cf8bsalomon@google.com#endif 9535dc26b97366934ba0f896cea02a3fec027d5d5c1bsalomon@google.com SkPaint* writablePaint = paint.writable(); 9545dc26b97366934ba0f896cea02a3fec027d5d5c1bsalomon@google.com writablePaint->setStrokeWidth(0); 9555dc26b97366934ba0f896cea02a3fec027d5d5c1bsalomon@google.com writablePaint->setAlpha(newAlpha); 956dd1be60702b3622f49d97651e31d13eaf2175cf8bsalomon@google.com } 9578a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 9588a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 959a76de3d1a92134c3e95ad7fce99234f92fa48268reed@google.com 96032e5d97ccf60f859db063ebd6e903c362e625767reed@google.com if (paint->getPathEffect() || paint->getStyle() != SkPaint::kFill_Style) { 96132e5d97ccf60f859db063ebd6e903c362e625767reed@google.com doFill = paint->getFillPath(*pathPtr, &tmpPath); 9628a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com pathPtr = &tmpPath; 9638a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 964a76de3d1a92134c3e95ad7fce99234f92fa48268reed@google.com 96532e5d97ccf60f859db063ebd6e903c362e625767reed@google.com if (paint->getRasterizer()) { 9668a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkMask mask; 96732e5d97ccf60f859db063ebd6e903c362e625767reed@google.com if (paint->getRasterizer()->rasterize(*pathPtr, *matrix, 968045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com &fRC->getBounds(), paint->getMaskFilter(), &mask, 9698a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkMask::kComputeBoundsAndRenderImage_CreateMode)) { 97032e5d97ccf60f859db063ebd6e903c362e625767reed@google.com this->drawDevMask(mask, *paint); 9718a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkMask::FreeImage(mask.fImage); 9728a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 9738a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com return; 9748a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 9758a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 9768a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com // avoid possibly allocating a new path in transform if we can 9778a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkPath* devPathPtr = pathIsMutable ? pathPtr : &tmpPath; 9788a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 9798a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com // transform the path into device space 9808a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com pathPtr->transform(*matrix, devPathPtr); 9818a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 98232e5d97ccf60f859db063ebd6e903c362e625767reed@google.com SkAutoBlitterChoose blitter(*fBitmap, *fMatrix, *paint); 9838a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 9842ac4ef5e6e0c9c95c9200408ba25a95ca758eac2junov@chromium.org if (paint->getMaskFilter()) { 985fbfcd5602128ec010c82cb733c9cdc0a3254f9f3rmistry@google.com SkPaint::Style style = doFill ? SkPaint::kFill_Style : 9862ac4ef5e6e0c9c95c9200408ba25a95ca758eac2junov@chromium.org SkPaint::kStroke_Style; 9872ac4ef5e6e0c9c95c9200408ba25a95ca758eac2junov@chromium.org if (paint->getMaskFilter()->filterPath(*devPathPtr, *fMatrix, *fRC, 9882ac4ef5e6e0c9c95c9200408ba25a95ca758eac2junov@chromium.org fBounder, blitter.get(), 9892ac4ef5e6e0c9c95c9200408ba25a95ca758eac2junov@chromium.org style)) { 9902ac4ef5e6e0c9c95c9200408ba25a95ca758eac2junov@chromium.org return; // filterPath() called the blitter, so we're done 9912ac4ef5e6e0c9c95c9200408ba25a95ca758eac2junov@chromium.org } 9928a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 9938a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 99432e5d97ccf60f859db063ebd6e903c362e625767reed@google.com if (fBounder && !fBounder->doPath(*devPathPtr, *paint, doFill)) { 9958a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com return; 9968a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 9978a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 998045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com void (*proc)(const SkPath&, const SkRasterClip&, SkBlitter*); 9998a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com if (doFill) { 100032e5d97ccf60f859db063ebd6e903c362e625767reed@google.com if (paint->isAntiAlias()) { 1001045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com proc = SkScan::AntiFillPath; 10028a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } else { 1003045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com proc = SkScan::FillPath; 10048a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 10058a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } else { // hairline 100632e5d97ccf60f859db063ebd6e903c362e625767reed@google.com if (paint->isAntiAlias()) { 1007045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com proc = SkScan::AntiHairPath; 10088a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } else { 1009045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com proc = SkScan::HairPath; 10108a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 10118a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 1012045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com proc(*devPathPtr, *fRC, blitter.get()); 10138a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com} 10148a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 10150baf19375466cfc24c96532df406e7c5b1d1aae8reed@android.com/** For the purposes of drawing bitmaps, if a matrix is "almost" translate 10160baf19375466cfc24c96532df406e7c5b1d1aae8reed@android.com go ahead and treat it as if it were, so that subsequent code can go fast. 10170baf19375466cfc24c96532df406e7c5b1d1aae8reed@android.com */ 10180baf19375466cfc24c96532df406e7c5b1d1aae8reed@android.comstatic bool just_translate(const SkMatrix& matrix, const SkBitmap& bitmap) { 10190baf19375466cfc24c96532df406e7c5b1d1aae8reed@android.com SkMatrix::TypeMask mask = matrix.getType(); 10200baf19375466cfc24c96532df406e7c5b1d1aae8reed@android.com 10210baf19375466cfc24c96532df406e7c5b1d1aae8reed@android.com if (mask & (SkMatrix::kAffine_Mask | SkMatrix::kPerspective_Mask)) { 10220baf19375466cfc24c96532df406e7c5b1d1aae8reed@android.com return false; 10230baf19375466cfc24c96532df406e7c5b1d1aae8reed@android.com } 10240baf19375466cfc24c96532df406e7c5b1d1aae8reed@android.com if (mask & SkMatrix::kScale_Mask) { 10250baf19375466cfc24c96532df406e7c5b1d1aae8reed@android.com SkScalar sx = matrix[SkMatrix::kMScaleX]; 10260baf19375466cfc24c96532df406e7c5b1d1aae8reed@android.com SkScalar sy = matrix[SkMatrix::kMScaleY]; 10270baf19375466cfc24c96532df406e7c5b1d1aae8reed@android.com int w = bitmap.width(); 10280baf19375466cfc24c96532df406e7c5b1d1aae8reed@android.com int h = bitmap.height(); 10290baf19375466cfc24c96532df406e7c5b1d1aae8reed@android.com int sw = SkScalarRound(SkScalarMul(sx, SkIntToScalar(w))); 10300baf19375466cfc24c96532df406e7c5b1d1aae8reed@android.com int sh = SkScalarRound(SkScalarMul(sy, SkIntToScalar(h))); 10310baf19375466cfc24c96532df406e7c5b1d1aae8reed@android.com return sw == w && sh == h; 10320baf19375466cfc24c96532df406e7c5b1d1aae8reed@android.com } 10330baf19375466cfc24c96532df406e7c5b1d1aae8reed@android.com // if we got here, we're either kTranslate_Mask or identity 10340baf19375466cfc24c96532df406e7c5b1d1aae8reed@android.com return true; 10358a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com} 10368a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 10378a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.comvoid SkDraw::drawBitmapAsMask(const SkBitmap& bitmap, 10388a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com const SkPaint& paint) const { 10398a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkASSERT(bitmap.getConfig() == SkBitmap::kA8_Config); 10408a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 1041a76de3d1a92134c3e95ad7fce99234f92fa48268reed@google.com if (just_translate(*fMatrix, bitmap)) { 10428a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com int ix = SkScalarRound(fMatrix->getTranslateX()); 10438a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com int iy = SkScalarRound(fMatrix->getTranslateY()); 10448a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 10458a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkMask mask; 10468a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com mask.fBounds.set(ix, iy, ix + bitmap.width(), iy + bitmap.height()); 10478a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com mask.fFormat = SkMask::kA8_Format; 10488a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com mask.fRowBytes = bitmap.rowBytes(); 10498a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com mask.fImage = bitmap.getAddr8(0, 0); 1050a76de3d1a92134c3e95ad7fce99234f92fa48268reed@google.com 10518a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com this->drawDevMask(mask, paint); 10528a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } else { // need to xform the bitmap first 10538a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkRect r; 10548a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkMask mask; 1055a76de3d1a92134c3e95ad7fce99234f92fa48268reed@google.com 10568a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com r.set(0, 0, 10578a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkIntToScalar(bitmap.width()), SkIntToScalar(bitmap.height())); 10588a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com fMatrix->mapRect(&r); 10598a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com r.round(&mask.fBounds); 1060a76de3d1a92134c3e95ad7fce99234f92fa48268reed@google.com 10618a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com // set the mask's bounds to the transformed bitmap-bounds, 10628a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com // clipped to the actual device 10638a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com { 10648a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkIRect devBounds; 10658a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com devBounds.set(0, 0, fBitmap->width(), fBitmap->height()); 10668a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com // need intersect(l, t, r, b) on irect 10678a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com if (!mask.fBounds.intersect(devBounds)) { 10688a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com return; 10698a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 10708a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 1071543ed9352c7dfd93071c08b14930cca2e82a08d4reed@android.com 10728a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com mask.fFormat = SkMask::kA8_Format; 10738a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com mask.fRowBytes = SkAlign4(mask.fBounds.width()); 1074543ed9352c7dfd93071c08b14930cca2e82a08d4reed@android.com size_t size = mask.computeImageSize(); 1075543ed9352c7dfd93071c08b14930cca2e82a08d4reed@android.com if (0 == size) { 1076543ed9352c7dfd93071c08b14930cca2e82a08d4reed@android.com // the mask is too big to allocated, draw nothing 1077543ed9352c7dfd93071c08b14930cca2e82a08d4reed@android.com return; 1078543ed9352c7dfd93071c08b14930cca2e82a08d4reed@android.com } 10798a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 10808a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com // allocate (and clear) our temp buffer to hold the transformed bitmap 10818a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkAutoMalloc storage(size); 10828a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com mask.fImage = (uint8_t*)storage.get(); 10838a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com memset(mask.fImage, 0, size); 1084a76de3d1a92134c3e95ad7fce99234f92fa48268reed@google.com 10858a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com // now draw our bitmap(src) into mask(dst), transformed by the matrix 10868a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com { 10878a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkBitmap device; 10888a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com device.setConfig(SkBitmap::kA8_Config, mask.fBounds.width(), 10898a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com mask.fBounds.height(), mask.fRowBytes); 10908a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com device.setPixels(mask.fImage); 1091a76de3d1a92134c3e95ad7fce99234f92fa48268reed@google.com 10928a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkCanvas c(device); 10938a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com // need the unclipped top/left for the translate 10948a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com c.translate(-SkIntToScalar(mask.fBounds.fLeft), 10958a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com -SkIntToScalar(mask.fBounds.fTop)); 10968a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com c.concat(*fMatrix); 10973469c76c40790b409621fd7eff34f56240718549reed@android.com 10983469c76c40790b409621fd7eff34f56240718549reed@android.com // We can't call drawBitmap, or we'll infinitely recurse. Instead 1099fb12c3e6ba84f95dc15fbaddc239dede0ba1d60ereed@android.com // we manually build a shader and draw that into our new mask 11003469c76c40790b409621fd7eff34f56240718549reed@android.com SkPaint tmpPaint; 11013469c76c40790b409621fd7eff34f56240718549reed@android.com tmpPaint.setFlags(paint.getFlags()); 110240c2ba27b6e5c6a4b6c073264f8c0a7c86355abereed@google.com SkAutoBitmapShaderInstall install(bitmap, tmpPaint); 11033469c76c40790b409621fd7eff34f56240718549reed@android.com SkRect rr; 11043469c76c40790b409621fd7eff34f56240718549reed@android.com rr.set(0, 0, SkIntToScalar(bitmap.width()), 11053469c76c40790b409621fd7eff34f56240718549reed@android.com SkIntToScalar(bitmap.height())); 110640c2ba27b6e5c6a4b6c073264f8c0a7c86355abereed@google.com c.drawRect(rr, install.paintWithShader()); 11078a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 11088a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com this->drawDevMask(mask, paint); 11098a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 11108a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com} 11118a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 1112045e62d715f5ee9b03deb5af3c750f8318096179reed@google.comstatic bool clipped_out(const SkMatrix& m, const SkRasterClip& c, 11138a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com const SkRect& srcR) { 11148a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkRect dstR; 11158a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkIRect devIR; 1116a76de3d1a92134c3e95ad7fce99234f92fa48268reed@google.com 11178a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com m.mapRect(&dstR, srcR); 1118a76de3d1a92134c3e95ad7fce99234f92fa48268reed@google.com dstR.roundOut(&devIR); 11198a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com return c.quickReject(devIR); 11208a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com} 11218a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 1122045e62d715f5ee9b03deb5af3c750f8318096179reed@google.comstatic bool clipped_out(const SkMatrix& matrix, const SkRasterClip& clip, 11238a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com int width, int height) { 11248a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkRect r; 11258a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com r.set(0, 0, SkIntToScalar(width), SkIntToScalar(height)); 11268a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com return clipped_out(matrix, clip, r); 11278a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com} 11288a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 1129045e62d715f5ee9b03deb5af3c750f8318096179reed@google.comstatic bool clipHandlesSprite(const SkRasterClip& clip, int x, int y, 1130045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com const SkBitmap& bitmap) { 1131045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com return clip.isBW() || 1132045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com clip.quickContains(x, y, x + bitmap.width(), y + bitmap.height()); 1133045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com} 1134045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com 11358a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.comvoid SkDraw::drawBitmap(const SkBitmap& bitmap, const SkMatrix& prematrix, 113640c2ba27b6e5c6a4b6c073264f8c0a7c86355abereed@google.com const SkPaint& origPaint) const { 1137f2b98d67dcb6fcb3120feede9c72016fc7b3ead8reed@android.com SkDEBUGCODE(this->validate();) 11388a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 11398a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com // nothing to draw 1140045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com if (fRC->isEmpty() || 11418a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com bitmap.width() == 0 || bitmap.height() == 0 || 1142dcd0f3a980095b77ebe605b49777a4bd37ca7b0areed@google.com bitmap.getConfig() == SkBitmap::kNo_Config) { 11438a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com return; 11448a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 1145a76de3d1a92134c3e95ad7fce99234f92fa48268reed@google.com 1146a76de3d1a92134c3e95ad7fce99234f92fa48268reed@google.com#ifndef SK_ALLOW_OVER_32K_BITMAPS 11478a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com // run away on too-big bitmaps for now (exceed 16.16) 11488a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com if (bitmap.width() > 32767 || bitmap.height() > 32767) { 11498a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com return; 11508a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 1151a76de3d1a92134c3e95ad7fce99234f92fa48268reed@google.com#endif 1152a76de3d1a92134c3e95ad7fce99234f92fa48268reed@google.com 115340c2ba27b6e5c6a4b6c073264f8c0a7c86355abereed@google.com SkPaint paint(origPaint); 115440c2ba27b6e5c6a4b6c073264f8c0a7c86355abereed@google.com paint.setStyle(SkPaint::kFill_Style); 1155a76de3d1a92134c3e95ad7fce99234f92fa48268reed@google.com 11568a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkMatrix matrix; 11578a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com if (!matrix.setConcat(*fMatrix, prematrix)) { 11588a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com return; 11598a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 11608a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 1161045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com if (clipped_out(matrix, *fRC, bitmap.width(), bitmap.height())) { 11628a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com return; 11638a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 11648a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 1165218521e15706c4377b1be49d931c4d7c8d597445reed@android.com if (fBounder && just_translate(matrix, bitmap)) { 1166218521e15706c4377b1be49d931c4d7c8d597445reed@android.com SkIRect ir; 1167218521e15706c4377b1be49d931c4d7c8d597445reed@android.com int32_t ix = SkScalarRound(matrix.getTranslateX()); 1168218521e15706c4377b1be49d931c4d7c8d597445reed@android.com int32_t iy = SkScalarRound(matrix.getTranslateY()); 1169218521e15706c4377b1be49d931c4d7c8d597445reed@android.com ir.set(ix, iy, ix + bitmap.width(), iy + bitmap.height()); 1170218521e15706c4377b1be49d931c4d7c8d597445reed@android.com if (!fBounder->doIRect(ir)) { 1171218521e15706c4377b1be49d931c4d7c8d597445reed@android.com return; 1172218521e15706c4377b1be49d931c4d7c8d597445reed@android.com } 1173218521e15706c4377b1be49d931c4d7c8d597445reed@android.com } 1174218521e15706c4377b1be49d931c4d7c8d597445reed@android.com 1175218521e15706c4377b1be49d931c4d7c8d597445reed@android.com // only lock the pixels if we passed the clip and bounder tests 11768a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkAutoLockPixels alp(bitmap); 11778a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com // after the lock, check if we are valid 11788a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com if (!bitmap.readyToDraw()) { 11798a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com return; 11808a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 11818a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 11820baf19375466cfc24c96532df406e7c5b1d1aae8reed@android.com if (bitmap.getConfig() != SkBitmap::kA8_Config && 11830baf19375466cfc24c96532df406e7c5b1d1aae8reed@android.com just_translate(matrix, bitmap)) { 1184045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com int ix = SkScalarRound(matrix.getTranslateX()); 1185045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com int iy = SkScalarRound(matrix.getTranslateY()); 1186045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com if (clipHandlesSprite(*fRC, ix, iy, bitmap)) { 1187045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com uint32_t storage[kBlitterStorageLongCount]; 1188045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com SkBlitter* blitter = SkBlitter::ChooseSprite(*fBitmap, paint, bitmap, 1189045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com ix, iy, storage, sizeof(storage)); 1190045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com if (blitter) { 1191045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com SkAutoTPlacementDelete<SkBlitter> ad(blitter, storage); 1192045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com 1193045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com SkIRect ir; 1194045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com ir.set(ix, iy, ix + bitmap.width(), iy + bitmap.height()); 1195045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com 1196045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com SkScan::FillIRect(ir, *fRC, blitter); 1197045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com return; 11988a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 11998a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 12008a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 1201a76de3d1a92134c3e95ad7fce99234f92fa48268reed@google.com 12028a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com // now make a temp draw on the stack, and use it 12038a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com // 12048a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkDraw draw(*this); 12058a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com draw.fMatrix = &matrix; 1206a76de3d1a92134c3e95ad7fce99234f92fa48268reed@google.com 12078a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com if (bitmap.getConfig() == SkBitmap::kA8_Config) { 12088a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com draw.drawBitmapAsMask(bitmap, paint); 12098a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } else { 121040c2ba27b6e5c6a4b6c073264f8c0a7c86355abereed@google.com SkAutoBitmapShaderInstall install(bitmap, paint); 12118a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 12128a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkRect r; 12138a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com r.set(0, 0, SkIntToScalar(bitmap.width()), 12148a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkIntToScalar(bitmap.height())); 1215a76de3d1a92134c3e95ad7fce99234f92fa48268reed@google.com // is this ok if paint has a rasterizer? 121640c2ba27b6e5c6a4b6c073264f8c0a7c86355abereed@google.com draw.drawRect(r, install.paintWithShader()); 12178a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 12188a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com} 12198a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 12208a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.comvoid SkDraw::drawSprite(const SkBitmap& bitmap, int x, int y, 122140c2ba27b6e5c6a4b6c073264f8c0a7c86355abereed@google.com const SkPaint& origPaint) const { 1222f2b98d67dcb6fcb3120feede9c72016fc7b3ead8reed@android.com SkDEBUGCODE(this->validate();) 1223a76de3d1a92134c3e95ad7fce99234f92fa48268reed@google.com 12248a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com // nothing to draw 1225045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com if (fRC->isEmpty() || 12268a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com bitmap.width() == 0 || bitmap.height() == 0 || 1227dcd0f3a980095b77ebe605b49777a4bd37ca7b0areed@google.com bitmap.getConfig() == SkBitmap::kNo_Config) { 12288a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com return; 12298a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 12308a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 12318a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkIRect bounds; 12328a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com bounds.set(x, y, x + bitmap.width(), y + bitmap.height()); 12338a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 1234045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com if (fRC->quickReject(bounds)) { 12358a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com return; // nothing to draw 12368a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 12378a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 123840c2ba27b6e5c6a4b6c073264f8c0a7c86355abereed@google.com SkPaint paint(origPaint); 123940c2ba27b6e5c6a4b6c073264f8c0a7c86355abereed@google.com paint.setStyle(SkPaint::kFill_Style); 12408a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 1241045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com if (NULL == paint.getColorFilter() && clipHandlesSprite(*fRC, x, y, bitmap)) { 12428a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com uint32_t storage[kBlitterStorageLongCount]; 12438a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkBlitter* blitter = SkBlitter::ChooseSprite(*fBitmap, paint, bitmap, 12448a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com x, y, storage, sizeof(storage)); 12458a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 12468a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com if (blitter) { 12478a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkAutoTPlacementDelete<SkBlitter> ad(blitter, storage); 12488a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 12498a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com if (fBounder && !fBounder->doIRect(bounds)) { 12508a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com return; 12518a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 12528a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 1253045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com SkScan::FillIRect(bounds, *fRC, blitter); 12548a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com return; 12558a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 12568a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 12578a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 125840c2ba27b6e5c6a4b6c073264f8c0a7c86355abereed@google.com SkAutoBitmapShaderInstall install(bitmap, paint); 125940c2ba27b6e5c6a4b6c073264f8c0a7c86355abereed@google.com const SkPaint& shaderPaint = install.paintWithShader(); 12608a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 12618a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkMatrix matrix; 12628a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkRect r; 12638a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 12648a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com // get a scalar version of our rect 12658a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com r.set(bounds); 12668a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 12678a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com // tell the shader our offset 12688a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com matrix.setTranslate(r.fLeft, r.fTop); 126940c2ba27b6e5c6a4b6c073264f8c0a7c86355abereed@google.com shaderPaint.getShader()->setLocalMatrix(matrix); 1270a76de3d1a92134c3e95ad7fce99234f92fa48268reed@google.com 12718a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkDraw draw(*this); 12728a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com matrix.reset(); 12738a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com draw.fMatrix = &matrix; 12748a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com // call ourself with a rect 1275a76de3d1a92134c3e95ad7fce99234f92fa48268reed@google.com // is this OK if paint has a rasterizer? 127640c2ba27b6e5c6a4b6c073264f8c0a7c86355abereed@google.com draw.drawRect(r, shaderPaint); 12778a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com} 12788a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 12798a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com/////////////////////////////////////////////////////////////////////////////// 12808a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 12818a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com#include "SkScalerContext.h" 12828a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com#include "SkGlyphCache.h" 1283e69137620ab0b5b40d230318c8e11b822f63cb9dreed@google.com#include "SkTextToPathIter.h" 12848a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com#include "SkUtils.h" 12858a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 12868a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.comstatic void measure_text(SkGlyphCache* cache, SkDrawCacheProc glyphCacheProc, 12878a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com const char text[], size_t byteLength, SkVector* stopVector) { 12888a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkFixed x = 0, y = 0; 12898a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com const char* stop = text + byteLength; 12908a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 12918a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkAutoKern autokern; 1292a76de3d1a92134c3e95ad7fce99234f92fa48268reed@google.com 12938a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com while (text < stop) { 12948a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com // don't need x, y here, since all subpixel variants will have the 12958a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com // same advance 12968a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com const SkGlyph& glyph = glyphCacheProc(cache, &text, 0, 0); 12978a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 12988a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com x += autokern.adjust(glyph) + glyph.fAdvanceX; 12998a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com y += glyph.fAdvanceY; 13008a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 13018a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com stopVector->set(SkFixedToScalar(x), SkFixedToScalar(y)); 13028a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 13038a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkASSERT(text == stop); 13048a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com} 13058a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 13068a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.comvoid SkDraw::drawText_asPaths(const char text[], size_t byteLength, 13078a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkScalar x, SkScalar y, 13088a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com const SkPaint& paint) const { 1309f2b98d67dcb6fcb3120feede9c72016fc7b3ead8reed@android.com SkDEBUGCODE(this->validate();) 13108a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 1311166e653f67f3fffc3846184a25ce45ab083f07a2djsollen@google.com SkTextToPathIter iter(text, byteLength, paint, true); 13128a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 13138a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkMatrix matrix; 13148a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com matrix.setScale(iter.getPathScale(), iter.getPathScale()); 13158a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com matrix.postTranslate(x, y); 13168a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 13178a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com const SkPath* iterPath; 13188a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkScalar xpos, prevXPos = 0; 13198a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 13207b4531f64cbd85d32a77ceab1bdec8335c5a7864reed@google.com while (iter.next(&iterPath, &xpos)) { 13218a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com matrix.postTranslate(xpos - prevXPos, 0); 13227b4531f64cbd85d32a77ceab1bdec8335c5a7864reed@google.com if (iterPath) { 13237b4531f64cbd85d32a77ceab1bdec8335c5a7864reed@google.com const SkPaint& pnt = iter.getPaint(); 13247b4531f64cbd85d32a77ceab1bdec8335c5a7864reed@google.com if (fDevice) { 13257b4531f64cbd85d32a77ceab1bdec8335c5a7864reed@google.com fDevice->drawPath(*this, *iterPath, pnt, &matrix, false); 13267b4531f64cbd85d32a77ceab1bdec8335c5a7864reed@google.com } else { 13277b4531f64cbd85d32a77ceab1bdec8335c5a7864reed@google.com this->drawPath(*iterPath, pnt, &matrix, false); 13287b4531f64cbd85d32a77ceab1bdec8335c5a7864reed@google.com } 1329f2b98d67dcb6fcb3120feede9c72016fc7b3ead8reed@android.com } 13308a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com prevXPos = xpos; 13318a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 13328a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com} 13338a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 13348a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com// disable warning : local variable used without having been initialized 1335a76de3d1a92134c3e95ad7fce99234f92fa48268reed@google.com#if defined _WIN32 && _MSC_VER >= 1300 13368a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com#pragma warning ( push ) 13378a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com#pragma warning ( disable : 4701 ) 13388a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com#endif 13398a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 13408a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com////////////////////////////////////////////////////////////////////////////// 13418a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 13428a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.comstatic void D1G_NoBounder_RectClip(const SkDraw1Glyph& state, 1343f2b98d67dcb6fcb3120feede9c72016fc7b3ead8reed@android.com SkFixed fx, SkFixed fy, 1344f2b98d67dcb6fcb3120feede9c72016fc7b3ead8reed@android.com const SkGlyph& glyph) { 1345f2b98d67dcb6fcb3120feede9c72016fc7b3ead8reed@android.com int left = SkFixedFloor(fx); 1346f2b98d67dcb6fcb3120feede9c72016fc7b3ead8reed@android.com int top = SkFixedFloor(fy); 13478a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkASSERT(glyph.fWidth > 0 && glyph.fHeight > 0); 134883a444602ec580a0040713eed588c245b4ae0ee9tomhudson@google.com SkASSERT(NULL == state.fBounder); 134983a444602ec580a0040713eed588c245b4ae0ee9tomhudson@google.com SkASSERT((NULL == state.fClip && state.fAAClip) || 135083a444602ec580a0040713eed588c245b4ae0ee9tomhudson@google.com (state.fClip && NULL == state.fAAClip && state.fClip->isRect())); 13518a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 13528a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com left += glyph.fLeft; 13538a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com top += glyph.fTop; 13548a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 13558a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com int right = left + glyph.fWidth; 13568a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com int bottom = top + glyph.fHeight; 13578a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 1358fbfcd5602128ec010c82cb733c9cdc0a3254f9f3rmistry@google.com SkMask mask; 1359fbfcd5602128ec010c82cb733c9cdc0a3254f9f3rmistry@google.com SkIRect storage; 1360fbfcd5602128ec010c82cb733c9cdc0a3254f9f3rmistry@google.com SkIRect* bounds = &mask.fBounds; 136183a444602ec580a0040713eed588c245b4ae0ee9tomhudson@google.com 136283a444602ec580a0040713eed588c245b4ae0ee9tomhudson@google.com mask.fBounds.set(left, top, right, bottom); 136383a444602ec580a0040713eed588c245b4ae0ee9tomhudson@google.com 136483a444602ec580a0040713eed588c245b4ae0ee9tomhudson@google.com // this extra test is worth it, assuming that most of the time it succeeds 136583a444602ec580a0040713eed588c245b4ae0ee9tomhudson@google.com // since we can avoid writing to storage 136683a444602ec580a0040713eed588c245b4ae0ee9tomhudson@google.com if (!state.fClipBounds.containsNoEmptyCheck(left, top, right, bottom)) { 136783a444602ec580a0040713eed588c245b4ae0ee9tomhudson@google.com if (!storage.intersectNoEmptyCheck(mask.fBounds, state.fClipBounds)) 136883a444602ec580a0040713eed588c245b4ae0ee9tomhudson@google.com return; 136983a444602ec580a0040713eed588c245b4ae0ee9tomhudson@google.com bounds = &storage; 137083a444602ec580a0040713eed588c245b4ae0ee9tomhudson@google.com } 137183a444602ec580a0040713eed588c245b4ae0ee9tomhudson@google.com 137283a444602ec580a0040713eed588c245b4ae0ee9tomhudson@google.com uint8_t* aa = (uint8_t*)glyph.fImage; 137383a444602ec580a0040713eed588c245b4ae0ee9tomhudson@google.com if (NULL == aa) { 137483a444602ec580a0040713eed588c245b4ae0ee9tomhudson@google.com aa = (uint8_t*)state.fCache->findImage(glyph); 137583a444602ec580a0040713eed588c245b4ae0ee9tomhudson@google.com if (NULL == aa) { 137683a444602ec580a0040713eed588c245b4ae0ee9tomhudson@google.com return; // can't rasterize glyph 13778a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 137883a444602ec580a0040713eed588c245b4ae0ee9tomhudson@google.com } 13798a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 138083a444602ec580a0040713eed588c245b4ae0ee9tomhudson@google.com mask.fRowBytes = glyph.rowBytes(); 138183a444602ec580a0040713eed588c245b4ae0ee9tomhudson@google.com mask.fFormat = static_cast<SkMask::Format>(glyph.fMaskFormat); 138283a444602ec580a0040713eed588c245b4ae0ee9tomhudson@google.com mask.fImage = aa; 138383a444602ec580a0040713eed588c245b4ae0ee9tomhudson@google.com state.fBlitter->blitMask(mask, *bounds); 13848a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com} 13858a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 13868a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.comstatic void D1G_NoBounder_RgnClip(const SkDraw1Glyph& state, 1387f2b98d67dcb6fcb3120feede9c72016fc7b3ead8reed@android.com SkFixed fx, SkFixed fy, 138883a444602ec580a0040713eed588c245b4ae0ee9tomhudson@google.com const SkGlyph& glyph) { 1389f2b98d67dcb6fcb3120feede9c72016fc7b3ead8reed@android.com int left = SkFixedFloor(fx); 1390f2b98d67dcb6fcb3120feede9c72016fc7b3ead8reed@android.com int top = SkFixedFloor(fy); 13918a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkASSERT(glyph.fWidth > 0 && glyph.fHeight > 0); 139283a444602ec580a0040713eed588c245b4ae0ee9tomhudson@google.com SkASSERT(!state.fClip->isRect()); 139383a444602ec580a0040713eed588c245b4ae0ee9tomhudson@google.com SkASSERT(NULL == state.fBounder); 13948a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 13958a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkMask mask; 13968a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 13978a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com left += glyph.fLeft; 13988a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com top += glyph.fTop; 13998a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 14008a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com mask.fBounds.set(left, top, left + glyph.fWidth, top + glyph.fHeight); 140183a444602ec580a0040713eed588c245b4ae0ee9tomhudson@google.com SkRegion::Cliperator clipper(*state.fClip, mask.fBounds); 140283a444602ec580a0040713eed588c245b4ae0ee9tomhudson@google.com 140383a444602ec580a0040713eed588c245b4ae0ee9tomhudson@google.com if (!clipper.done()) { 140483a444602ec580a0040713eed588c245b4ae0ee9tomhudson@google.com const SkIRect& cr = clipper.rect(); 140583a444602ec580a0040713eed588c245b4ae0ee9tomhudson@google.com const uint8_t* aa = (const uint8_t*)glyph.fImage; 140683a444602ec580a0040713eed588c245b4ae0ee9tomhudson@google.com if (NULL == aa) { 140783a444602ec580a0040713eed588c245b4ae0ee9tomhudson@google.com aa = (uint8_t*)state.fCache->findImage(glyph); 140883a444602ec580a0040713eed588c245b4ae0ee9tomhudson@google.com if (NULL == aa) { 1409fbfcd5602128ec010c82cb733c9cdc0a3254f9f3rmistry@google.com return; 14108a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 141183a444602ec580a0040713eed588c245b4ae0ee9tomhudson@google.com } 141283a444602ec580a0040713eed588c245b4ae0ee9tomhudson@google.com 141383a444602ec580a0040713eed588c245b4ae0ee9tomhudson@google.com mask.fRowBytes = glyph.rowBytes(); 141483a444602ec580a0040713eed588c245b4ae0ee9tomhudson@google.com mask.fFormat = static_cast<SkMask::Format>(glyph.fMaskFormat); 141583a444602ec580a0040713eed588c245b4ae0ee9tomhudson@google.com mask.fImage = (uint8_t*)aa; 141683a444602ec580a0040713eed588c245b4ae0ee9tomhudson@google.com do { 141783a444602ec580a0040713eed588c245b4ae0ee9tomhudson@google.com state.fBlitter->blitMask(mask, cr); 141883a444602ec580a0040713eed588c245b4ae0ee9tomhudson@google.com clipper.next(); 141983a444602ec580a0040713eed588c245b4ae0ee9tomhudson@google.com } while (!clipper.done()); 142083a444602ec580a0040713eed588c245b4ae0ee9tomhudson@google.com } 14218a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com} 14228a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 14238a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.comstatic void D1G_Bounder(const SkDraw1Glyph& state, 1424f2b98d67dcb6fcb3120feede9c72016fc7b3ead8reed@android.com SkFixed fx, SkFixed fy, 142583a444602ec580a0040713eed588c245b4ae0ee9tomhudson@google.com const SkGlyph& glyph) { 1426f2b98d67dcb6fcb3120feede9c72016fc7b3ead8reed@android.com int left = SkFixedFloor(fx); 1427f2b98d67dcb6fcb3120feede9c72016fc7b3ead8reed@android.com int top = SkFixedFloor(fy); 14288a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkASSERT(glyph.fWidth > 0 && glyph.fHeight > 0); 1429fbfcd5602128ec010c82cb733c9cdc0a3254f9f3rmistry@google.com 14308a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkMask mask; 1431fbfcd5602128ec010c82cb733c9cdc0a3254f9f3rmistry@google.com 14328a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com left += glyph.fLeft; 14338a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com top += glyph.fTop; 1434fbfcd5602128ec010c82cb733c9cdc0a3254f9f3rmistry@google.com 14358a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com mask.fBounds.set(left, top, left + glyph.fWidth, top + glyph.fHeight); 14368a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkRegion::Cliperator clipper(*state.fClip, mask.fBounds); 1437fbfcd5602128ec010c82cb733c9cdc0a3254f9f3rmistry@google.com 143883a444602ec580a0040713eed588c245b4ae0ee9tomhudson@google.com if (!clipper.done()) { 143983a444602ec580a0040713eed588c245b4ae0ee9tomhudson@google.com const SkIRect& cr = clipper.rect(); 144083a444602ec580a0040713eed588c245b4ae0ee9tomhudson@google.com const uint8_t* aa = (const uint8_t*)glyph.fImage; 144183a444602ec580a0040713eed588c245b4ae0ee9tomhudson@google.com if (NULL == aa) { 144283a444602ec580a0040713eed588c245b4ae0ee9tomhudson@google.com aa = (uint8_t*)state.fCache->findImage(glyph); 144383a444602ec580a0040713eed588c245b4ae0ee9tomhudson@google.com if (NULL == aa) { 144483a444602ec580a0040713eed588c245b4ae0ee9tomhudson@google.com return; 14458a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 1446fbfcd5602128ec010c82cb733c9cdc0a3254f9f3rmistry@google.com } 1447fbfcd5602128ec010c82cb733c9cdc0a3254f9f3rmistry@google.com 1448d055c1fde2128514167b315f4d104b177e04a3dereed@android.com // we need to pass the origin, which we approximate with our 1449d055c1fde2128514167b315f4d104b177e04a3dereed@android.com // (unadjusted) left,top coordinates (the caller called fixedfloor) 145083a444602ec580a0040713eed588c245b4ae0ee9tomhudson@google.com if (state.fBounder->doIRectGlyph(cr, 1451d055c1fde2128514167b315f4d104b177e04a3dereed@android.com left - glyph.fLeft, 1452d055c1fde2128514167b315f4d104b177e04a3dereed@android.com top - glyph.fTop, glyph)) { 145383a444602ec580a0040713eed588c245b4ae0ee9tomhudson@google.com mask.fRowBytes = glyph.rowBytes(); 145483a444602ec580a0040713eed588c245b4ae0ee9tomhudson@google.com mask.fFormat = static_cast<SkMask::Format>(glyph.fMaskFormat); 145583a444602ec580a0040713eed588c245b4ae0ee9tomhudson@google.com mask.fImage = (uint8_t*)aa; 145683a444602ec580a0040713eed588c245b4ae0ee9tomhudson@google.com do { 145783a444602ec580a0040713eed588c245b4ae0ee9tomhudson@google.com state.fBlitter->blitMask(mask, cr); 145883a444602ec580a0040713eed588c245b4ae0ee9tomhudson@google.com clipper.next(); 145983a444602ec580a0040713eed588c245b4ae0ee9tomhudson@google.com } while (!clipper.done()); 146083a444602ec580a0040713eed588c245b4ae0ee9tomhudson@google.com } 146183a444602ec580a0040713eed588c245b4ae0ee9tomhudson@google.com } 14628a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com} 14638a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 1464045e62d715f5ee9b03deb5af3c750f8318096179reed@google.comstatic void D1G_Bounder_AAClip(const SkDraw1Glyph& state, 1465045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com SkFixed fx, SkFixed fy, 1466045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com const SkGlyph& glyph) { 1467045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com int left = SkFixedFloor(fx); 1468045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com int top = SkFixedFloor(fy); 1469045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com SkIRect bounds; 1470045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com bounds.set(left, top, left + glyph.fWidth, top + glyph.fHeight); 1471045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com 1472045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com if (state.fBounder->doIRectGlyph(bounds, left, top, glyph)) { 1473045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com D1G_NoBounder_RectClip(state, fx, fy, glyph); 1474045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com } 1475045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com} 1476045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com 1477fd4236ecc1d5eb1bb48ca9dc33df5e9051c3036ereed@google.comstatic bool hasCustomD1GProc(const SkDraw& draw) { 1478fd4236ecc1d5eb1bb48ca9dc33df5e9051c3036ereed@google.com return draw.fProcs && draw.fProcs->fD1GProc; 1479fd4236ecc1d5eb1bb48ca9dc33df5e9051c3036ereed@google.com} 1480fd4236ecc1d5eb1bb48ca9dc33df5e9051c3036ereed@google.com 1481fd4236ecc1d5eb1bb48ca9dc33df5e9051c3036ereed@google.comstatic bool needsRasterTextBlit(const SkDraw& draw) { 1482fd4236ecc1d5eb1bb48ca9dc33df5e9051c3036ereed@google.com return !hasCustomD1GProc(draw); 1483fd4236ecc1d5eb1bb48ca9dc33df5e9051c3036ereed@google.com} 1484fd4236ecc1d5eb1bb48ca9dc33df5e9051c3036ereed@google.com 14858a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.comSkDraw1Glyph::Proc SkDraw1Glyph::init(const SkDraw* draw, SkBlitter* blitter, 14868a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkGlyphCache* cache) { 14878a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com fDraw = draw; 14882211b623274e24d0025763cfa855c9eb53d5b900bungeman@google.com fBounder = draw->fBounder; 14892211b623274e24d0025763cfa855c9eb53d5b900bungeman@google.com fBlitter = blitter; 14902211b623274e24d0025763cfa855c9eb53d5b900bungeman@google.com fCache = cache; 14918a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 14921d6ee0bd4db7f3b676209341214641d9af5a965freed@google.com if (hasCustomD1GProc(*draw)) { 1493045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com // todo: fix this assumption about clips w/ custom 1494045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com fClip = draw->fClip; 1495045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com fClipBounds = fClip->getBounds(); 14968a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com return draw->fProcs->fD1GProc; 14978a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 14988a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 1499045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com if (draw->fRC->isBW()) { 1500045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com fAAClip = NULL; 1501045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com fClip = &draw->fRC->bwRgn(); 1502045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com fClipBounds = fClip->getBounds(); 1503045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com if (NULL == fBounder) { 1504045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com if (fClip->isRect()) { 1505045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com return D1G_NoBounder_RectClip; 1506045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com } else { 1507045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com return D1G_NoBounder_RgnClip; 1508045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com } 1509045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com } else { 1510045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com return D1G_Bounder; 1511045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com } 1512045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com } else { // aaclip 1513045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com fAAClip = &draw->fRC->aaRgn(); 1514045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com fClip = NULL; 1515045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com fClipBounds = fAAClip->getBounds(); 1516045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com if (NULL == fBounder) { 15178a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com return D1G_NoBounder_RectClip; 15188a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } else { 1519045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com return D1G_Bounder_AAClip; 15208a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 15218a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 15228a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com} 15238a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 15248a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com/////////////////////////////////////////////////////////////////////////////// 15258a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 15268a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.comvoid SkDraw::drawText(const char text[], size_t byteLength, 15278a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkScalar x, SkScalar y, const SkPaint& paint) const { 15288a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkASSERT(byteLength == 0 || text != NULL); 15298a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 1530f2b98d67dcb6fcb3120feede9c72016fc7b3ead8reed@android.com SkDEBUGCODE(this->validate();) 15318a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 15328a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com // nothing to draw 1533045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com if (text == NULL || byteLength == 0 || fRC->isEmpty()) { 15348a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com return; 15358a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 15368a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 153736d6edac9f3e63d9a5f499d0076550d08b80eacabsalomon@google.com // SkScalarRec doesn't currently have a way of representing hairline stroke and 153836d6edac9f3e63d9a5f499d0076550d08b80eacabsalomon@google.com // will fill if its frame-width is 0. 15398a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com if (/*paint.isLinearText() ||*/ 1540fc84359aa920567e72742877a1249f52d076ad35skia.committer@gmail.com (fMatrix->hasPerspective()) || 154136d6edac9f3e63d9a5f499d0076550d08b80eacabsalomon@google.com (0 == paint.getStrokeWidth() && SkPaint::kStroke_Style == paint.getStyle())) { 15428a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com this->drawText_asPaths(text, byteLength, x, y, paint); 15438a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com return; 15448a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 15458a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 15468a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkDrawCacheProc glyphCacheProc = paint.getDrawCacheProc(); 15478a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 1548f2b98d67dcb6fcb3120feede9c72016fc7b3ead8reed@android.com const SkMatrix* matrix = fMatrix; 1549f2b98d67dcb6fcb3120feede9c72016fc7b3ead8reed@android.com 1550f2b98d67dcb6fcb3120feede9c72016fc7b3ead8reed@android.com SkAutoGlyphCache autoCache(paint, matrix); 15518a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkGlyphCache* cache = autoCache.getCache(); 1552a76de3d1a92134c3e95ad7fce99234f92fa48268reed@google.com 15538a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com // transform our starting point 15548a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com { 15558a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkPoint loc; 1556f2b98d67dcb6fcb3120feede9c72016fc7b3ead8reed@android.com matrix->mapXY(x, y, &loc); 15578a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com x = loc.fX; 15588a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com y = loc.fY; 15598a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 15608a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 15618a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com // need to measure first 15628a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com if (paint.getTextAlign() != SkPaint::kLeft_Align) { 15638a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkVector stop; 15648a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 15658a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com measure_text(cache, glyphCacheProc, text, byteLength, &stop); 15668a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 15678a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkScalar stopX = stop.fX; 15688a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkScalar stopY = stop.fY; 15698a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 15708a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com if (paint.getTextAlign() == SkPaint::kCenter_Align) { 15718a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com stopX = SkScalarHalf(stopX); 15728a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com stopY = SkScalarHalf(stopY); 15738a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 15748a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com x -= stopX; 15758a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com y -= stopY; 15768a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 1577a76de3d1a92134c3e95ad7fce99234f92fa48268reed@google.com 15788a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkFixed fx = SkScalarToFixed(x); 15798a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkFixed fy = SkScalarToFixed(y); 15808a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com const char* stop = text + byteLength; 15818a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 1582f2b98d67dcb6fcb3120feede9c72016fc7b3ead8reed@android.com SkFixed fxMask = ~0; 1583f2b98d67dcb6fcb3120feede9c72016fc7b3ead8reed@android.com SkFixed fyMask = ~0; 15842211b623274e24d0025763cfa855c9eb53d5b900bungeman@google.com if (cache->isSubpixel()) { 1585cb6ccdde5120ec45df208c0b958b263d8252a505reed@google.com SkAxisAlignment baseline = SkComputeAxisAlignmentForHText(*matrix); 1586cb6ccdde5120ec45df208c0b958b263d8252a505reed@google.com if (kX_SkAxisAlignment == baseline) { 1587f2b98d67dcb6fcb3120feede9c72016fc7b3ead8reed@android.com fyMask = 0; 1588cb6ccdde5120ec45df208c0b958b263d8252a505reed@google.com } else if (kY_SkAxisAlignment == baseline) { 1589f2b98d67dcb6fcb3120feede9c72016fc7b3ead8reed@android.com fxMask = 0; 15908a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 1591fbfcd5602128ec010c82cb733c9cdc0a3254f9f3rmistry@google.com 15922211b623274e24d0025763cfa855c9eb53d5b900bungeman@google.com // apply bias here to avoid adding 1/2 the sampling frequency in the loop 15932211b623274e24d0025763cfa855c9eb53d5b900bungeman@google.com fx += SK_FixedHalf >> SkGlyph::kSubBits; 15942211b623274e24d0025763cfa855c9eb53d5b900bungeman@google.com fy += SK_FixedHalf >> SkGlyph::kSubBits; 15952211b623274e24d0025763cfa855c9eb53d5b900bungeman@google.com } else { 15962211b623274e24d0025763cfa855c9eb53d5b900bungeman@google.com fx += SK_FixedHalf; 15972211b623274e24d0025763cfa855c9eb53d5b900bungeman@google.com fy += SK_FixedHalf; 15988a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 15998a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 1600045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com SkAAClipBlitter aaBlitter; 1601045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com SkAutoBlitterChoose blitterChooser; 1602045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com SkBlitter* blitter = NULL; 16031d6ee0bd4db7f3b676209341214641d9af5a965freed@google.com if (needsRasterTextBlit(*this)) { 1604045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com blitterChooser.choose(*fBitmap, *matrix, paint); 1605045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com blitter = blitterChooser.get(); 1606045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com if (fRC->isAA()) { 1607045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com aaBlitter.init(blitter, &fRC->aaRgn()); 1608045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com blitter = &aaBlitter; 1609045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com } 16101d6ee0bd4db7f3b676209341214641d9af5a965freed@google.com } 16111d6ee0bd4db7f3b676209341214641d9af5a965freed@google.com 16128a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkAutoKern autokern; 161352c748b1691f02f90b27c35bc05074fcef709e66bungeman@google.com SkDraw1Glyph d1g; 1614045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com SkDraw1Glyph::Proc proc = d1g.init(this, blitter, cache); 16158a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 16168a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com while (text < stop) { 16172211b623274e24d0025763cfa855c9eb53d5b900bungeman@google.com const SkGlyph& glyph = glyphCacheProc(cache, &text, fx & fxMask, fy & fyMask); 16188a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 16198a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com fx += autokern.adjust(glyph); 16208a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 16218a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com if (glyph.fWidth) { 162252c748b1691f02f90b27c35bc05074fcef709e66bungeman@google.com proc(d1g, fx, fy, glyph); 16238a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 16248a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com fx += glyph.fAdvanceX; 16258a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com fy += glyph.fAdvanceY; 16268a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 16278a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com} 16288a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 16298a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com// last parameter is interpreted as SkFixed [x, y] 16308a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com// return the fixed position, which may be rounded or not by the caller 16318a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com// e.g. subpixel doesn't round 16328a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.comtypedef void (*AlignProc)(const SkPoint&, const SkGlyph&, SkIPoint*); 16338a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 16348a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.comstatic void leftAlignProc(const SkPoint& loc, const SkGlyph& glyph, 16358a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkIPoint* dst) { 16368a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com dst->set(SkScalarToFixed(loc.fX), SkScalarToFixed(loc.fY)); 16378a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com} 16388a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 16398a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.comstatic void centerAlignProc(const SkPoint& loc, const SkGlyph& glyph, 16408a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkIPoint* dst) { 16418a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com dst->set(SkScalarToFixed(loc.fX) - (glyph.fAdvanceX >> 1), 16428a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkScalarToFixed(loc.fY) - (glyph.fAdvanceY >> 1)); 16438a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com} 16448a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 16458a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.comstatic void rightAlignProc(const SkPoint& loc, const SkGlyph& glyph, 16468a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkIPoint* dst) { 16478a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com dst->set(SkScalarToFixed(loc.fX) - glyph.fAdvanceX, 16488a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkScalarToFixed(loc.fY) - glyph.fAdvanceY); 16498a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com} 16508a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 16518a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.comstatic AlignProc pick_align_proc(SkPaint::Align align) { 16528a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com static const AlignProc gProcs[] = { 16538a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com leftAlignProc, centerAlignProc, rightAlignProc 16548a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com }; 1655a76de3d1a92134c3e95ad7fce99234f92fa48268reed@google.com 16568a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkASSERT((unsigned)align < SK_ARRAY_COUNT(gProcs)); 16578a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 16588a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com return gProcs[align]; 16598a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com} 16608a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 16618a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.comclass TextMapState { 16628a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.compublic: 16638a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com mutable SkPoint fLoc; 1664a76de3d1a92134c3e95ad7fce99234f92fa48268reed@google.com 16658a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com TextMapState(const SkMatrix& matrix, SkScalar y) 16668a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com : fMatrix(matrix), fProc(matrix.getMapXYProc()), fY(y) {} 16678a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 16688a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com typedef void (*Proc)(const TextMapState&, const SkScalar pos[]); 1669a76de3d1a92134c3e95ad7fce99234f92fa48268reed@google.com 16708a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com Proc pickProc(int scalarsPerPosition); 1671a76de3d1a92134c3e95ad7fce99234f92fa48268reed@google.com 16728a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.comprivate: 16738a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com const SkMatrix& fMatrix; 16748a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkMatrix::MapXYProc fProc; 16758a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkScalar fY; // ignored by MapXYProc 16768a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com // these are only used by Only... procs 16778a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkScalar fScaleX, fTransX, fTransformedY; 16788a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 16798a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com static void MapXProc(const TextMapState& state, const SkScalar pos[]) { 16808a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com state.fProc(state.fMatrix, *pos, state.fY, &state.fLoc); 16818a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 1682a76de3d1a92134c3e95ad7fce99234f92fa48268reed@google.com 16838a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com static void MapXYProc(const TextMapState& state, const SkScalar pos[]) { 16848a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com state.fProc(state.fMatrix, pos[0], pos[1], &state.fLoc); 16858a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 1686a76de3d1a92134c3e95ad7fce99234f92fa48268reed@google.com 16878a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com static void MapOnlyScaleXProc(const TextMapState& state, 16888a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com const SkScalar pos[]) { 16898a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com state.fLoc.set(SkScalarMul(state.fScaleX, *pos) + state.fTransX, 16908a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com state.fTransformedY); 16918a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 1692a76de3d1a92134c3e95ad7fce99234f92fa48268reed@google.com 16938a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com static void MapOnlyTransXProc(const TextMapState& state, 16948a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com const SkScalar pos[]) { 16958a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com state.fLoc.set(*pos + state.fTransX, state.fTransformedY); 16968a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 16978a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com}; 16988a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 16998a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.comTextMapState::Proc TextMapState::pickProc(int scalarsPerPosition) { 17008a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkASSERT(1 == scalarsPerPosition || 2 == scalarsPerPosition); 1701a76de3d1a92134c3e95ad7fce99234f92fa48268reed@google.com 17028a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com if (1 == scalarsPerPosition) { 17038a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com unsigned mtype = fMatrix.getType(); 17048a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com if (mtype & (SkMatrix::kAffine_Mask | SkMatrix::kPerspective_Mask)) { 17058a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com return MapXProc; 17068a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } else { 17078a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com fScaleX = fMatrix.getScaleX(); 17088a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com fTransX = fMatrix.getTranslateX(); 17098a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com fTransformedY = SkScalarMul(fY, fMatrix.getScaleY()) + 17108a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com fMatrix.getTranslateY(); 17118a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com return (mtype & SkMatrix::kScale_Mask) ? 17128a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com MapOnlyScaleXProc : MapOnlyTransXProc; 17138a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 17148a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } else { 17158a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com return MapXYProc; 17168a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 17178a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com} 17188a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 17198a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com////////////////////////////////////////////////////////////////////////////// 17208a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 17218a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.comvoid SkDraw::drawPosText(const char text[], size_t byteLength, 17228a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com const SkScalar pos[], SkScalar constY, 17238a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com int scalarsPerPosition, const SkPaint& paint) const { 17248a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkASSERT(byteLength == 0 || text != NULL); 17258a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkASSERT(1 == scalarsPerPosition || 2 == scalarsPerPosition); 17268a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 1727f2b98d67dcb6fcb3120feede9c72016fc7b3ead8reed@android.com SkDEBUGCODE(this->validate();) 17288a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 17298a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com // nothing to draw 1730045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com if (text == NULL || byteLength == 0 || fRC->isEmpty()) { 17318a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com return; 17328a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 17338a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 17348a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com if (/*paint.isLinearText() ||*/ 17358d430185e08d2067584837a76b7193b803fee7a0tomhudson@google.com (fMatrix->hasPerspective())) { 17368a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com // TODO !!!! 17378a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com// this->drawText_asPaths(text, byteLength, x, y, paint); 17388a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com return; 17398a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 17408a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 1741f2b98d67dcb6fcb3120feede9c72016fc7b3ead8reed@android.com const SkMatrix* matrix = fMatrix; 1742a76de3d1a92134c3e95ad7fce99234f92fa48268reed@google.com 17438a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkDrawCacheProc glyphCacheProc = paint.getDrawCacheProc(); 1744f2b98d67dcb6fcb3120feede9c72016fc7b3ead8reed@android.com SkAutoGlyphCache autoCache(paint, matrix); 17458a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkGlyphCache* cache = autoCache.getCache(); 1746a76de3d1a92134c3e95ad7fce99234f92fa48268reed@google.com 1747045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com SkAAClipBlitterWrapper wrapper; 1748045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com SkAutoBlitterChoose blitterChooser; 1749045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com SkBlitter* blitter = NULL; 17501d6ee0bd4db7f3b676209341214641d9af5a965freed@google.com if (needsRasterTextBlit(*this)) { 1751045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com blitterChooser.choose(*fBitmap, *matrix, paint); 1752045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com blitter = blitterChooser.get(); 1753045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com if (fRC->isAA()) { 1754045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com wrapper.init(*fRC, blitter); 1755045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com blitter = wrapper.getBlitter(); 1756045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com } 17571d6ee0bd4db7f3b676209341214641d9af5a965freed@google.com } 1758fbfcd5602128ec010c82cb733c9cdc0a3254f9f3rmistry@google.com 17598a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com const char* stop = text + byteLength; 17608a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com AlignProc alignProc = pick_align_proc(paint.getTextAlign()); 17612211b623274e24d0025763cfa855c9eb53d5b900bungeman@google.com SkDraw1Glyph d1g; 17622211b623274e24d0025763cfa855c9eb53d5b900bungeman@google.com SkDraw1Glyph::Proc proc = d1g.init(this, blitter, cache); 1763f2b98d67dcb6fcb3120feede9c72016fc7b3ead8reed@android.com TextMapState tms(*matrix, constY); 17648a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com TextMapState::Proc tmsProc = tms.pickProc(scalarsPerPosition); 17658a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 17662211b623274e24d0025763cfa855c9eb53d5b900bungeman@google.com if (cache->isSubpixel()) { 17678a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com // maybe we should skip the rounding if linearText is set 1768cb6ccdde5120ec45df208c0b958b263d8252a505reed@google.com SkAxisAlignment roundBaseline = SkComputeAxisAlignmentForHText(*matrix); 17698a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 17708a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com if (SkPaint::kLeft_Align == paint.getTextAlign()) { 17718a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com while (text < stop) { 1772a76de3d1a92134c3e95ad7fce99234f92fa48268reed@google.com 17738a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com tmsProc(tms, pos); 1774a76de3d1a92134c3e95ad7fce99234f92fa48268reed@google.com 17752211b623274e24d0025763cfa855c9eb53d5b900bungeman@google.com#ifdef SK_DRAW_POS_TEXT_IGNORE_SUBPIXEL_LEFT_ALIGN_FIX 17768a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkFixed fx = SkScalarToFixed(tms.fLoc.fX); 17778a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkFixed fy = SkScalarToFixed(tms.fLoc.fY); 17782211b623274e24d0025763cfa855c9eb53d5b900bungeman@google.com#else 17792211b623274e24d0025763cfa855c9eb53d5b900bungeman@google.com SkFixed fx = SkScalarToFixed(tms.fLoc.fX) + (SK_FixedHalf >> SkGlyph::kSubBits); 17802211b623274e24d0025763cfa855c9eb53d5b900bungeman@google.com SkFixed fy = SkScalarToFixed(tms.fLoc.fY) + (SK_FixedHalf >> SkGlyph::kSubBits); 17812211b623274e24d0025763cfa855c9eb53d5b900bungeman@google.com#endif 1782f2b98d67dcb6fcb3120feede9c72016fc7b3ead8reed@android.com SkFixed fxMask = ~0; 1783f2b98d67dcb6fcb3120feede9c72016fc7b3ead8reed@android.com SkFixed fyMask = ~0; 17848a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 1785cb6ccdde5120ec45df208c0b958b263d8252a505reed@google.com if (kX_SkAxisAlignment == roundBaseline) { 1786f2b98d67dcb6fcb3120feede9c72016fc7b3ead8reed@android.com fyMask = 0; 1787cb6ccdde5120ec45df208c0b958b263d8252a505reed@google.com } else if (kY_SkAxisAlignment == roundBaseline) { 1788f2b98d67dcb6fcb3120feede9c72016fc7b3ead8reed@android.com fxMask = 0; 17898a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 1790a76de3d1a92134c3e95ad7fce99234f92fa48268reed@google.com 1791f2b98d67dcb6fcb3120feede9c72016fc7b3ead8reed@android.com const SkGlyph& glyph = glyphCacheProc(cache, &text, 1792f2b98d67dcb6fcb3120feede9c72016fc7b3ead8reed@android.com fx & fxMask, fy & fyMask); 1793a76de3d1a92134c3e95ad7fce99234f92fa48268reed@google.com 17948a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com if (glyph.fWidth) { 1795f2b98d67dcb6fcb3120feede9c72016fc7b3ead8reed@android.com proc(d1g, fx, fy, glyph); 17968a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 17978a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com pos += scalarsPerPosition; 17988a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 17998a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } else { 18008a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com while (text < stop) { 18019330cfe851b14b8985acc14caa3dc5ad20b0b2a8bungeman@google.com const char* currentText = text; 18028a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com const SkGlyph* glyph = &glyphCacheProc(cache, &text, 0, 0); 1803a76de3d1a92134c3e95ad7fce99234f92fa48268reed@google.com 18048a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com if (glyph->fWidth) { 18058a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkDEBUGCODE(SkFixed prevAdvX = glyph->fAdvanceX;) 18068a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkDEBUGCODE(SkFixed prevAdvY = glyph->fAdvanceY;) 18078a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 18088a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkFixed fx, fy; 1809f2b98d67dcb6fcb3120feede9c72016fc7b3ead8reed@android.com SkFixed fxMask = ~0; 1810f2b98d67dcb6fcb3120feede9c72016fc7b3ead8reed@android.com SkFixed fyMask = ~0; 18118a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com tmsProc(tms, pos); 1812a76de3d1a92134c3e95ad7fce99234f92fa48268reed@google.com 18138a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com { 18148a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkIPoint fixedLoc; 18158a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com alignProc(tms.fLoc, *glyph, &fixedLoc); 18162211b623274e24d0025763cfa855c9eb53d5b900bungeman@google.com fx = fixedLoc.fX + (SK_FixedHalf >> SkGlyph::kSubBits); 18172211b623274e24d0025763cfa855c9eb53d5b900bungeman@google.com fy = fixedLoc.fY + (SK_FixedHalf >> SkGlyph::kSubBits); 18188a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 1819cb6ccdde5120ec45df208c0b958b263d8252a505reed@google.com if (kX_SkAxisAlignment == roundBaseline) { 1820f2b98d67dcb6fcb3120feede9c72016fc7b3ead8reed@android.com fyMask = 0; 1821cb6ccdde5120ec45df208c0b958b263d8252a505reed@google.com } else if (kY_SkAxisAlignment == roundBaseline) { 1822f2b98d67dcb6fcb3120feede9c72016fc7b3ead8reed@android.com fxMask = 0; 18238a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 18248a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 1825a76de3d1a92134c3e95ad7fce99234f92fa48268reed@google.com 18268a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com // have to call again, now that we've been "aligned" 18279330cfe851b14b8985acc14caa3dc5ad20b0b2a8bungeman@google.com glyph = &glyphCacheProc(cache, ¤tText, 18289330cfe851b14b8985acc14caa3dc5ad20b0b2a8bungeman@google.com fx & fxMask, fy & fyMask); 18298a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com // the assumption is that the advance hasn't changed 18308a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkASSERT(prevAdvX == glyph->fAdvanceX); 18318a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkASSERT(prevAdvY == glyph->fAdvanceY); 1832a76de3d1a92134c3e95ad7fce99234f92fa48268reed@google.com 1833f2b98d67dcb6fcb3120feede9c72016fc7b3ead8reed@android.com proc(d1g, fx, fy, *glyph); 18348a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 18358a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com pos += scalarsPerPosition; 18368a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 18378a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 18388a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } else { // not subpixel 1839aeb07864052fde0acba0ae1a42a01db3407f1f6ereed@google.com if (SkPaint::kLeft_Align == paint.getTextAlign()) { 1840aeb07864052fde0acba0ae1a42a01db3407f1f6ereed@google.com while (text < stop) { 1841aeb07864052fde0acba0ae1a42a01db3407f1f6ereed@google.com // the last 2 parameters are ignored 1842aeb07864052fde0acba0ae1a42a01db3407f1f6ereed@google.com const SkGlyph& glyph = glyphCacheProc(cache, &text, 0, 0); 1843fbfcd5602128ec010c82cb733c9cdc0a3254f9f3rmistry@google.com 1844aeb07864052fde0acba0ae1a42a01db3407f1f6ereed@google.com if (glyph.fWidth) { 1845aeb07864052fde0acba0ae1a42a01db3407f1f6ereed@google.com tmsProc(tms, pos); 1846a76de3d1a92134c3e95ad7fce99234f92fa48268reed@google.com 1847aeb07864052fde0acba0ae1a42a01db3407f1f6ereed@google.com proc(d1g, 1848aeb07864052fde0acba0ae1a42a01db3407f1f6ereed@google.com SkScalarToFixed(tms.fLoc.fX) + SK_FixedHalf, 1849aeb07864052fde0acba0ae1a42a01db3407f1f6ereed@google.com SkScalarToFixed(tms.fLoc.fY) + SK_FixedHalf, 1850aeb07864052fde0acba0ae1a42a01db3407f1f6ereed@google.com glyph); 1851aeb07864052fde0acba0ae1a42a01db3407f1f6ereed@google.com } 1852aeb07864052fde0acba0ae1a42a01db3407f1f6ereed@google.com pos += scalarsPerPosition; 1853aeb07864052fde0acba0ae1a42a01db3407f1f6ereed@google.com } 1854aeb07864052fde0acba0ae1a42a01db3407f1f6ereed@google.com } else { 1855aeb07864052fde0acba0ae1a42a01db3407f1f6ereed@google.com while (text < stop) { 1856aeb07864052fde0acba0ae1a42a01db3407f1f6ereed@google.com // the last 2 parameters are ignored 1857aeb07864052fde0acba0ae1a42a01db3407f1f6ereed@google.com const SkGlyph& glyph = glyphCacheProc(cache, &text, 0, 0); 1858a76de3d1a92134c3e95ad7fce99234f92fa48268reed@google.com 1859aeb07864052fde0acba0ae1a42a01db3407f1f6ereed@google.com if (glyph.fWidth) { 1860aeb07864052fde0acba0ae1a42a01db3407f1f6ereed@google.com tmsProc(tms, pos); 1861a76de3d1a92134c3e95ad7fce99234f92fa48268reed@google.com 1862aeb07864052fde0acba0ae1a42a01db3407f1f6ereed@google.com SkIPoint fixedLoc; 1863aeb07864052fde0acba0ae1a42a01db3407f1f6ereed@google.com alignProc(tms.fLoc, glyph, &fixedLoc); 1864aeb07864052fde0acba0ae1a42a01db3407f1f6ereed@google.com 1865aeb07864052fde0acba0ae1a42a01db3407f1f6ereed@google.com proc(d1g, 1866aeb07864052fde0acba0ae1a42a01db3407f1f6ereed@google.com fixedLoc.fX + SK_FixedHalf, 1867aeb07864052fde0acba0ae1a42a01db3407f1f6ereed@google.com fixedLoc.fY + SK_FixedHalf, 1868aeb07864052fde0acba0ae1a42a01db3407f1f6ereed@google.com glyph); 1869aeb07864052fde0acba0ae1a42a01db3407f1f6ereed@google.com } 1870aeb07864052fde0acba0ae1a42a01db3407f1f6ereed@google.com pos += scalarsPerPosition; 18718a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 18728a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 18738a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 18748a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com} 18758a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 18768a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com#if defined _WIN32 && _MSC_VER >= 1300 18778a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com#pragma warning ( pop ) 18788a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com#endif 18798a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 18808a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com/////////////////////////////////////////////////////////////////////////////// 18818a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 18828a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com#include "SkPathMeasure.h" 18838a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 18848a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.comstatic void morphpoints(SkPoint dst[], const SkPoint src[], int count, 18858a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkPathMeasure& meas, const SkMatrix& matrix) { 18868a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkMatrix::MapXYProc proc = matrix.getMapXYProc(); 18878a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 18888a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com for (int i = 0; i < count; i++) { 18898a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkPoint pos; 18908a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkVector tangent; 18918a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 18928a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com proc(matrix, src[i].fX, src[i].fY, &pos); 18938a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkScalar sx = pos.fX; 18948a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkScalar sy = pos.fY; 18958a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 18968f17b0d5e14fa336f65e33ecf30f15929aa75790reed@google.com if (!meas.getPosTan(sx, &pos, &tangent)) { 18978f17b0d5e14fa336f65e33ecf30f15929aa75790reed@google.com // set to 0 if the measure failed, so that we just set dst == pos 18988f17b0d5e14fa336f65e33ecf30f15929aa75790reed@google.com tangent.set(0, 0); 18998f17b0d5e14fa336f65e33ecf30f15929aa75790reed@google.com } 19008a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 19018a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com /* This is the old way (that explains our approach but is way too slow 19028a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkMatrix matrix; 19038a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkPoint pt; 19048a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 19058a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com pt.set(sx, sy); 19068a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com matrix.setSinCos(tangent.fY, tangent.fX); 19078a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com matrix.preTranslate(-sx, 0); 19088a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com matrix.postTranslate(pos.fX, pos.fY); 19098a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com matrix.mapPoints(&dst[i], &pt, 1); 19108a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com */ 19118a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com dst[i].set(pos.fX - SkScalarMul(tangent.fY, sy), 19128a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com pos.fY + SkScalarMul(tangent.fX, sy)); 19138a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 19148a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com} 19158a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 19168a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com/* TODO 19178a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 19188a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com Need differentially more subdivisions when the follow-path is curvy. Not sure how to 19198a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com determine that, but we need it. I guess a cheap answer is let the caller tell us, 19208a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com but that seems like a cop-out. Another answer is to get Rob Johnson to figure it out. 19218a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com*/ 19228a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.comstatic void morphpath(SkPath* dst, const SkPath& src, SkPathMeasure& meas, 19238a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com const SkMatrix& matrix) { 19248a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkPath::Iter iter(src, false); 19258a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkPoint srcP[4], dstP[3]; 19268a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkPath::Verb verb; 19278a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 19288a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com while ((verb = iter.next(srcP)) != SkPath::kDone_Verb) { 19298a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com switch (verb) { 19308a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com case SkPath::kMove_Verb: 19318a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com morphpoints(dstP, srcP, 1, meas, matrix); 19328a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com dst->moveTo(dstP[0]); 19338a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com break; 19348a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com case SkPath::kLine_Verb: 19358a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com // turn lines into quads to look bendy 19368a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com srcP[0].fX = SkScalarAve(srcP[0].fX, srcP[1].fX); 19378a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com srcP[0].fY = SkScalarAve(srcP[0].fY, srcP[1].fY); 19388a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com morphpoints(dstP, srcP, 2, meas, matrix); 19398a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com dst->quadTo(dstP[0], dstP[1]); 19408a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com break; 19418a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com case SkPath::kQuad_Verb: 19428a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com morphpoints(dstP, &srcP[1], 2, meas, matrix); 19438a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com dst->quadTo(dstP[0], dstP[1]); 19448a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com break; 19458a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com case SkPath::kCubic_Verb: 19468a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com morphpoints(dstP, &srcP[1], 3, meas, matrix); 19478a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com dst->cubicTo(dstP[0], dstP[1], dstP[2]); 19488a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com break; 19498a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com case SkPath::kClose_Verb: 19508a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com dst->close(); 19518a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com break; 19528a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com default: 19530c00f21fee3f5cfa3aa7e5d46ff94cb8cf340451tomhudson@google.com SkDEBUGFAIL("unknown verb"); 19548a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com break; 19558a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 19568a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 19578a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com} 19588a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 19598a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.comvoid SkDraw::drawTextOnPath(const char text[], size_t byteLength, 19608a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com const SkPath& follow, const SkMatrix* matrix, 19618a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com const SkPaint& paint) const { 19628a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkASSERT(byteLength == 0 || text != NULL); 19638a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 19648a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com // nothing to draw 1965045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com if (text == NULL || byteLength == 0 || fRC->isEmpty()) { 19668a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com return; 19678a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 19688a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 1969166e653f67f3fffc3846184a25ce45ab083f07a2djsollen@google.com SkTextToPathIter iter(text, byteLength, paint, true); 19708a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkPathMeasure meas(follow, false); 19718a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkScalar hOffset = 0; 19728a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 19738a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com // need to measure first 19748a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com if (paint.getTextAlign() != SkPaint::kLeft_Align) { 19758a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkScalar pathLen = meas.getLength(); 19768a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com if (paint.getTextAlign() == SkPaint::kCenter_Align) { 19778a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com pathLen = SkScalarHalf(pathLen); 19788a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 19798a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com hOffset += pathLen; 19808a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 19818a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 19828a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com const SkPath* iterPath; 19838a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkScalar xpos; 19848a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkMatrix scaledMatrix; 19858a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkScalar scale = iter.getPathScale(); 19868a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 19878a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com scaledMatrix.setScale(scale, scale); 1988a76de3d1a92134c3e95ad7fce99234f92fa48268reed@google.com 19897b4531f64cbd85d32a77ceab1bdec8335c5a7864reed@google.com while (iter.next(&iterPath, &xpos)) { 19907b4531f64cbd85d32a77ceab1bdec8335c5a7864reed@google.com if (iterPath) { 19917b4531f64cbd85d32a77ceab1bdec8335c5a7864reed@google.com SkPath tmp; 19927b4531f64cbd85d32a77ceab1bdec8335c5a7864reed@google.com SkMatrix m(scaledMatrix); 19938a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 19947b4531f64cbd85d32a77ceab1bdec8335c5a7864reed@google.com m.postTranslate(xpos + hOffset, 0); 19957b4531f64cbd85d32a77ceab1bdec8335c5a7864reed@google.com if (matrix) { 19967b4531f64cbd85d32a77ceab1bdec8335c5a7864reed@google.com m.postConcat(*matrix); 19977b4531f64cbd85d32a77ceab1bdec8335c5a7864reed@google.com } 19987b4531f64cbd85d32a77ceab1bdec8335c5a7864reed@google.com morphpath(&tmp, *iterPath, meas, m); 19997b4531f64cbd85d32a77ceab1bdec8335c5a7864reed@google.com if (fDevice) { 20007b4531f64cbd85d32a77ceab1bdec8335c5a7864reed@google.com fDevice->drawPath(*this, tmp, iter.getPaint(), NULL, true); 20017b4531f64cbd85d32a77ceab1bdec8335c5a7864reed@google.com } else { 20027b4531f64cbd85d32a77ceab1bdec8335c5a7864reed@google.com this->drawPath(tmp, iter.getPaint(), NULL, true); 20037b4531f64cbd85d32a77ceab1bdec8335c5a7864reed@google.com } 2004f2b98d67dcb6fcb3120feede9c72016fc7b3ead8reed@android.com } 20058a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 20068a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com} 20078a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 200856c69773aea56c6c6bd47bc7e7970dd081205184djsollen@google.com#ifdef SK_BUILD_FOR_ANDROID 2009cd9d69b9ce7eb301a9fd8d91b9f95fd99b07bae5djsollen@google.comvoid SkDraw::drawPosTextOnPath(const char text[], size_t byteLength, 2010cd9d69b9ce7eb301a9fd8d91b9f95fd99b07bae5djsollen@google.com const SkPoint pos[], const SkPaint& paint, 2011cd9d69b9ce7eb301a9fd8d91b9f95fd99b07bae5djsollen@google.com const SkPath& path, const SkMatrix* matrix) const { 2012cd9d69b9ce7eb301a9fd8d91b9f95fd99b07bae5djsollen@google.com // nothing to draw 2013045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com if (text == NULL || byteLength == 0 || fRC->isEmpty()) { 2014cd9d69b9ce7eb301a9fd8d91b9f95fd99b07bae5djsollen@google.com return; 2015cd9d69b9ce7eb301a9fd8d91b9f95fd99b07bae5djsollen@google.com } 2016cd9d69b9ce7eb301a9fd8d91b9f95fd99b07bae5djsollen@google.com 2017cd9d69b9ce7eb301a9fd8d91b9f95fd99b07bae5djsollen@google.com SkMatrix scaledMatrix; 2018cd9d69b9ce7eb301a9fd8d91b9f95fd99b07bae5djsollen@google.com SkPathMeasure meas(path, false); 2019cd9d69b9ce7eb301a9fd8d91b9f95fd99b07bae5djsollen@google.com 2020cd9d69b9ce7eb301a9fd8d91b9f95fd99b07bae5djsollen@google.com SkMeasureCacheProc glyphCacheProc = paint.getMeasureCacheProc( 2021cd9d69b9ce7eb301a9fd8d91b9f95fd99b07bae5djsollen@google.com SkPaint::kForward_TextBufferDirection, true); 2022cd9d69b9ce7eb301a9fd8d91b9f95fd99b07bae5djsollen@google.com 2023cd9d69b9ce7eb301a9fd8d91b9f95fd99b07bae5djsollen@google.com // Copied (modified) from SkTextToPathIter constructor to setup paint 2024cd9d69b9ce7eb301a9fd8d91b9f95fd99b07bae5djsollen@google.com SkPaint tempPaint(paint); 2025cd9d69b9ce7eb301a9fd8d91b9f95fd99b07bae5djsollen@google.com 2026cd9d69b9ce7eb301a9fd8d91b9f95fd99b07bae5djsollen@google.com tempPaint.setLinearText(true); 2027cd9d69b9ce7eb301a9fd8d91b9f95fd99b07bae5djsollen@google.com tempPaint.setMaskFilter(NULL); // don't want this affecting our path-cache lookup 2028cd9d69b9ce7eb301a9fd8d91b9f95fd99b07bae5djsollen@google.com 2029cd9d69b9ce7eb301a9fd8d91b9f95fd99b07bae5djsollen@google.com if (tempPaint.getPathEffect() == NULL && !(tempPaint.getStrokeWidth() > 0 2030cd9d69b9ce7eb301a9fd8d91b9f95fd99b07bae5djsollen@google.com && tempPaint.getStyle() != SkPaint::kFill_Style)) { 2031cd9d69b9ce7eb301a9fd8d91b9f95fd99b07bae5djsollen@google.com tempPaint.setStyle(SkPaint::kFill_Style); 2032cd9d69b9ce7eb301a9fd8d91b9f95fd99b07bae5djsollen@google.com tempPaint.setPathEffect(NULL); 2033cd9d69b9ce7eb301a9fd8d91b9f95fd99b07bae5djsollen@google.com } 2034cd9d69b9ce7eb301a9fd8d91b9f95fd99b07bae5djsollen@google.com // End copied from SkTextToPathIter constructor 2035cd9d69b9ce7eb301a9fd8d91b9f95fd99b07bae5djsollen@google.com 2036cd9d69b9ce7eb301a9fd8d91b9f95fd99b07bae5djsollen@google.com // detach cache 2037cd9d69b9ce7eb301a9fd8d91b9f95fd99b07bae5djsollen@google.com SkGlyphCache* cache = tempPaint.detachCache(NULL); 2038cd9d69b9ce7eb301a9fd8d91b9f95fd99b07bae5djsollen@google.com 2039cd9d69b9ce7eb301a9fd8d91b9f95fd99b07bae5djsollen@google.com // Must set scale, even if 1 2040cd9d69b9ce7eb301a9fd8d91b9f95fd99b07bae5djsollen@google.com SkScalar scale = SK_Scalar1; 2041cd9d69b9ce7eb301a9fd8d91b9f95fd99b07bae5djsollen@google.com scaledMatrix.setScale(scale, scale); 2042cd9d69b9ce7eb301a9fd8d91b9f95fd99b07bae5djsollen@google.com 2043cd9d69b9ce7eb301a9fd8d91b9f95fd99b07bae5djsollen@google.com // Loop over all glyph ids 2044cd9d69b9ce7eb301a9fd8d91b9f95fd99b07bae5djsollen@google.com for (const char* stop = text + byteLength; text < stop; pos++) { 2045cd9d69b9ce7eb301a9fd8d91b9f95fd99b07bae5djsollen@google.com 2046cd9d69b9ce7eb301a9fd8d91b9f95fd99b07bae5djsollen@google.com const SkGlyph& glyph = glyphCacheProc(cache, &text); 2047cd9d69b9ce7eb301a9fd8d91b9f95fd99b07bae5djsollen@google.com SkPath tmp; 2048cd9d69b9ce7eb301a9fd8d91b9f95fd99b07bae5djsollen@google.com 2049cd9d69b9ce7eb301a9fd8d91b9f95fd99b07bae5djsollen@google.com const SkPath* glyphPath = cache->findPath(glyph); 2050cd9d69b9ce7eb301a9fd8d91b9f95fd99b07bae5djsollen@google.com if (glyphPath == NULL) { 2051cd9d69b9ce7eb301a9fd8d91b9f95fd99b07bae5djsollen@google.com continue; 2052cd9d69b9ce7eb301a9fd8d91b9f95fd99b07bae5djsollen@google.com } 2053cd9d69b9ce7eb301a9fd8d91b9f95fd99b07bae5djsollen@google.com 2054cd9d69b9ce7eb301a9fd8d91b9f95fd99b07bae5djsollen@google.com SkMatrix m(scaledMatrix); 2055cd9d69b9ce7eb301a9fd8d91b9f95fd99b07bae5djsollen@google.com m.postTranslate(pos->fX, 0); 2056cd9d69b9ce7eb301a9fd8d91b9f95fd99b07bae5djsollen@google.com 2057cd9d69b9ce7eb301a9fd8d91b9f95fd99b07bae5djsollen@google.com if (matrix) { 2058cd9d69b9ce7eb301a9fd8d91b9f95fd99b07bae5djsollen@google.com m.postConcat(*matrix); 2059cd9d69b9ce7eb301a9fd8d91b9f95fd99b07bae5djsollen@google.com } 2060cd9d69b9ce7eb301a9fd8d91b9f95fd99b07bae5djsollen@google.com 2061cd9d69b9ce7eb301a9fd8d91b9f95fd99b07bae5djsollen@google.com morphpath(&tmp, *glyphPath, meas, m); 2062cd9d69b9ce7eb301a9fd8d91b9f95fd99b07bae5djsollen@google.com this->drawPath(tmp, tempPaint); 2063cd9d69b9ce7eb301a9fd8d91b9f95fd99b07bae5djsollen@google.com 2064cd9d69b9ce7eb301a9fd8d91b9f95fd99b07bae5djsollen@google.com } 2065cd9d69b9ce7eb301a9fd8d91b9f95fd99b07bae5djsollen@google.com 2066cd9d69b9ce7eb301a9fd8d91b9f95fd99b07bae5djsollen@google.com // re-attach cache 2067cd9d69b9ce7eb301a9fd8d91b9f95fd99b07bae5djsollen@google.com SkGlyphCache::AttachCache(cache); 2068cd9d69b9ce7eb301a9fd8d91b9f95fd99b07bae5djsollen@google.com} 2069cd9d69b9ce7eb301a9fd8d91b9f95fd99b07bae5djsollen@google.com#endif 2070cd9d69b9ce7eb301a9fd8d91b9f95fd99b07bae5djsollen@google.com 20718a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com/////////////////////////////////////////////////////////////////////////////// 20728a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 20738a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.comstruct VertState { 20748a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com int f0, f1, f2; 20758a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 20768a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com VertState(int vCount, const uint16_t indices[], int indexCount) 20778a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com : fIndices(indices) { 20788a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com fCurrIndex = 0; 20798a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com if (indices) { 20808a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com fCount = indexCount; 20818a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } else { 20828a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com fCount = vCount; 20838a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 20848a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 2085a76de3d1a92134c3e95ad7fce99234f92fa48268reed@google.com 2086a76de3d1a92134c3e95ad7fce99234f92fa48268reed@google.com typedef bool (*Proc)(VertState*); 20878a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com Proc chooseProc(SkCanvas::VertexMode mode); 20888a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 20898a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.comprivate: 20908a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com int fCount; 20918a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com int fCurrIndex; 20928a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com const uint16_t* fIndices; 2093a76de3d1a92134c3e95ad7fce99234f92fa48268reed@google.com 20948a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com static bool Triangles(VertState*); 20958a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com static bool TrianglesX(VertState*); 20968a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com static bool TriangleStrip(VertState*); 20978a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com static bool TriangleStripX(VertState*); 20988a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com static bool TriangleFan(VertState*); 20998a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com static bool TriangleFanX(VertState*); 21008a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com}; 21018a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 21028a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.combool VertState::Triangles(VertState* state) { 21038a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com int index = state->fCurrIndex; 21048a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com if (index + 3 > state->fCount) { 21058a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com return false; 21068a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 21078a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com state->f0 = index + 0; 21088a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com state->f1 = index + 1; 21098a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com state->f2 = index + 2; 21108a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com state->fCurrIndex = index + 3; 21118a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com return true; 21128a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com} 21138a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 21148a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.combool VertState::TrianglesX(VertState* state) { 21158a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com const uint16_t* indices = state->fIndices; 21168a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com int index = state->fCurrIndex; 21178a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com if (index + 3 > state->fCount) { 21188a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com return false; 21198a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 21208a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com state->f0 = indices[index + 0]; 21218a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com state->f1 = indices[index + 1]; 21228a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com state->f2 = indices[index + 2]; 21238a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com state->fCurrIndex = index + 3; 21248a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com return true; 21258a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com} 21268a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 21278a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.combool VertState::TriangleStrip(VertState* state) { 21288a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com int index = state->fCurrIndex; 21298a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com if (index + 3 > state->fCount) { 21308a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com return false; 21318a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 21328a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com state->f2 = index + 2; 21338a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com if (index & 1) { 21348a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com state->f0 = index + 1; 21358a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com state->f1 = index + 0; 21368a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } else { 21378a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com state->f0 = index + 0; 21388a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com state->f1 = index + 1; 21398a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 21408a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com state->fCurrIndex = index + 1; 21418a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com return true; 21428a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com} 21438a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 21448a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.combool VertState::TriangleStripX(VertState* state) { 21458a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com const uint16_t* indices = state->fIndices; 21468a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com int index = state->fCurrIndex; 21478a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com if (index + 3 > state->fCount) { 21488a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com return false; 21498a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 21508a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com state->f2 = indices[index + 2]; 21518a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com if (index & 1) { 21528a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com state->f0 = indices[index + 1]; 21538a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com state->f1 = indices[index + 0]; 21548a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } else { 21558a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com state->f0 = indices[index + 0]; 21568a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com state->f1 = indices[index + 1]; 21578a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 21588a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com state->fCurrIndex = index + 1; 21598a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com return true; 21608a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com} 21618a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 21628a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.combool VertState::TriangleFan(VertState* state) { 21638a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com int index = state->fCurrIndex; 21648a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com if (index + 3 > state->fCount) { 21658a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com return false; 21668a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 21678a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com state->f0 = 0; 21688a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com state->f1 = index + 1; 21698a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com state->f2 = index + 2; 21708a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com state->fCurrIndex = index + 1; 21718a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com return true; 21728a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com} 21738a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 21748a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.combool VertState::TriangleFanX(VertState* state) { 21758a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com const uint16_t* indices = state->fIndices; 21768a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com int index = state->fCurrIndex; 21778a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com if (index + 3 > state->fCount) { 21788a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com return false; 21798a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 21808a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com state->f0 = indices[0]; 21818a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com state->f1 = indices[index + 1]; 21828a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com state->f2 = indices[index + 2]; 21838a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com state->fCurrIndex = index + 1; 21848a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com return true; 21858a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com} 21868a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 21878a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.comVertState::Proc VertState::chooseProc(SkCanvas::VertexMode mode) { 21888a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com switch (mode) { 21898a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com case SkCanvas::kTriangles_VertexMode: 21908a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com return fIndices ? TrianglesX : Triangles; 21918a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com case SkCanvas::kTriangleStrip_VertexMode: 21928a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com return fIndices ? TriangleStripX : TriangleStrip; 21938a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com case SkCanvas::kTriangleFan_VertexMode: 21948a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com return fIndices ? TriangleFanX : TriangleFan; 21958a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com default: 21968a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com return NULL; 21978a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 21988a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com} 21998a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 2200045e62d715f5ee9b03deb5af3c750f8318096179reed@google.comtypedef void (*HairProc)(const SkPoint&, const SkPoint&, const SkRasterClip&, 22018a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkBlitter*); 22028a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 22038a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.comstatic HairProc ChooseHairProc(bool doAntiAlias) { 22048a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com return doAntiAlias ? SkScan::AntiHairLine : SkScan::HairLine; 22058a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com} 22068a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 22078a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.comstatic bool texture_to_matrix(const VertState& state, const SkPoint verts[], 22088a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com const SkPoint texs[], SkMatrix* matrix) { 22098a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkPoint src[3], dst[3]; 2210a76de3d1a92134c3e95ad7fce99234f92fa48268reed@google.com 22118a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com src[0] = texs[state.f0]; 22128a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com src[1] = texs[state.f1]; 22138a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com src[2] = texs[state.f2]; 22148a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com dst[0] = verts[state.f0]; 22158a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com dst[1] = verts[state.f1]; 22168a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com dst[2] = verts[state.f2]; 22178a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com return matrix->setPolyToPoly(src, dst, 3); 22188a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com} 22198a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 22208a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.comclass SkTriColorShader : public SkShader { 22218a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.compublic: 22228a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkTriColorShader() {} 22238a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 22248a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com bool setup(const SkPoint pts[], const SkColor colors[], int, int, int); 2225a76de3d1a92134c3e95ad7fce99234f92fa48268reed@google.com 22268a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com virtual void shadeSpan(int x, int y, SkPMColor dstC[], int count); 2227a76de3d1a92134c3e95ad7fce99234f92fa48268reed@google.com 2228ba28d03e94dc221d6a803bf2a84a420b9159255cdjsollen@google.com SK_DECLARE_PUBLIC_FLATTENABLE_DESERIALIZATION_PROCS(SkTriColorShader) 2229ba28d03e94dc221d6a803bf2a84a420b9159255cdjsollen@google.com 22308a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.comprotected: 22318a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkTriColorShader(SkFlattenableReadBuffer& buffer) : SkShader(buffer) {} 2232a76de3d1a92134c3e95ad7fce99234f92fa48268reed@google.com 22338a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.comprivate: 22348a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkMatrix fDstToUnit; 22358a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkPMColor fColors[3]; 2236a76de3d1a92134c3e95ad7fce99234f92fa48268reed@google.com 22378a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com typedef SkShader INHERITED; 22388a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com}; 22398a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 22408a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.combool SkTriColorShader::setup(const SkPoint pts[], const SkColor colors[], 22418a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com int index0, int index1, int index2) { 2242a76de3d1a92134c3e95ad7fce99234f92fa48268reed@google.com 22438a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com fColors[0] = SkPreMultiplyColor(colors[index0]); 22448a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com fColors[1] = SkPreMultiplyColor(colors[index1]); 22458a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com fColors[2] = SkPreMultiplyColor(colors[index2]); 2246a76de3d1a92134c3e95ad7fce99234f92fa48268reed@google.com 22478a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkMatrix m, im; 22488a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com m.reset(); 22498a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com m.set(0, pts[index1].fX - pts[index0].fX); 22508a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com m.set(1, pts[index2].fX - pts[index0].fX); 22518a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com m.set(2, pts[index0].fX); 22528a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com m.set(3, pts[index1].fY - pts[index0].fY); 22538a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com m.set(4, pts[index2].fY - pts[index0].fY); 22548a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com m.set(5, pts[index0].fY); 22558a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com if (!m.invert(&im)) { 22568a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com return false; 22578a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 22588a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com return fDstToUnit.setConcat(im, this->getTotalInverse()); 22598a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com} 22608a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 22618a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com#include "SkColorPriv.h" 2262689411a87ca7d19abe04b5c9baff26bd96b2123ereed@android.com#include "SkComposeShader.h" 22638a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 22648a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.comstatic int ScalarTo256(SkScalar v) { 22658a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com int scale = SkScalarToFixed(v) >> 8; 22668a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com if (scale < 0) { 22678a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com scale = 0; 22688a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 22698a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com if (scale > 255) { 22708a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com scale = 255; 22718a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 22728a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com return SkAlpha255To256(scale); 22738a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com} 22748a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 22758a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.comvoid SkTriColorShader::shadeSpan(int x, int y, SkPMColor dstC[], int count) { 22768a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkPoint src; 2277a76de3d1a92134c3e95ad7fce99234f92fa48268reed@google.com 22788a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com for (int i = 0; i < count; i++) { 22798a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com fDstToUnit.mapXY(SkIntToScalar(x), SkIntToScalar(y), &src); 22808a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com x += 1; 2281a76de3d1a92134c3e95ad7fce99234f92fa48268reed@google.com 22828a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com int scale1 = ScalarTo256(src.fX); 22838a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com int scale2 = ScalarTo256(src.fY); 22848a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com int scale0 = 256 - scale1 - scale2; 22858a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com if (scale0 < 0) { 22868a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com if (scale1 > scale2) { 22878a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com scale2 = 256 - scale1; 22888a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } else { 22898a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com scale1 = 256 - scale2; 22908a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 22918a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com scale0 = 0; 22928a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 2293a76de3d1a92134c3e95ad7fce99234f92fa48268reed@google.com 22948a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com dstC[i] = SkAlphaMulQ(fColors[0], scale0) + 22958a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkAlphaMulQ(fColors[1], scale1) + 22968a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkAlphaMulQ(fColors[2], scale2); 22978a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 22988a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com} 22998a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 23008a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.comvoid SkDraw::drawVertices(SkCanvas::VertexMode vmode, int count, 23018a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com const SkPoint vertices[], const SkPoint textures[], 23028a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com const SkColor colors[], SkXfermode* xmode, 23038a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com const uint16_t indices[], int indexCount, 23048a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com const SkPaint& paint) const { 23058a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkASSERT(0 == count || NULL != vertices); 2306a76de3d1a92134c3e95ad7fce99234f92fa48268reed@google.com 23078a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com // abort early if there is nothing to draw 2308045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com if (count < 3 || (indices && indexCount < 3) || fRC->isEmpty()) { 23098a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com return; 23108a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 2311a76de3d1a92134c3e95ad7fce99234f92fa48268reed@google.com 23128a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com // transform out vertices into device coordinates 23138a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkAutoSTMalloc<16, SkPoint> storage(count); 23148a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkPoint* devVerts = storage.get(); 23158a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com fMatrix->mapPoints(devVerts, vertices, count); 2316a76de3d1a92134c3e95ad7fce99234f92fa48268reed@google.com 23178a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com if (fBounder) { 23188a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkRect bounds; 23198a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com bounds.set(devVerts, count); 23208a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com if (!fBounder->doRect(bounds, paint)) { 23218a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com return; 23228a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 23238a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 2324a76de3d1a92134c3e95ad7fce99234f92fa48268reed@google.com 23258a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com /* 23268a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com We can draw the vertices in 1 of 4 ways: 23278a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 23288a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com - solid color (no shader/texture[], no colors[]) 23298a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com - just colors (no shader/texture[], has colors[]) 23308a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com - just texture (has shader/texture[], no colors[]) 23318a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com - colors * texture (has shader/texture[], has colors[]) 2332a76de3d1a92134c3e95ad7fce99234f92fa48268reed@google.com 23338a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com Thus for texture drawing, we need both texture[] and a shader. 23348a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com */ 23358a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 23368a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkTriColorShader triShader; // must be above declaration of p 23378a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkPaint p(paint); 23388a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 23398a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkShader* shader = p.getShader(); 23408a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com if (NULL == shader) { 23418a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com // if we have no shader, we ignore the texture coordinates 23428a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com textures = NULL; 23438a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } else if (NULL == textures) { 23448a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com // if we don't have texture coordinates, ignore the shader 23458a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com p.setShader(NULL); 23468a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com shader = NULL; 23478a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 23488a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 23498a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com // setup the custom shader (if needed) 23508a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com if (NULL != colors) { 23518a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com if (NULL == textures) { 23528a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com // just colors (no texture) 23538a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com p.setShader(&triShader); 23548a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } else { 23558a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com // colors * texture 23568a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkASSERT(shader); 23578a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com bool releaseMode = false; 23588a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com if (NULL == xmode) { 2359845fdaca174f4675e9acc164b510e3a5ffa9053creed@android.com xmode = SkXfermode::Create(SkXfermode::kMultiply_Mode); 23608a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com releaseMode = true; 23618a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 23628a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkShader* compose = SkNEW_ARGS(SkComposeShader, 23638a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com (&triShader, shader, xmode)); 23648a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com p.setShader(compose)->unref(); 23658a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com if (releaseMode) { 23668a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com xmode->unref(); 23678a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 23688a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 23698a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 23708a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 23718a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkAutoBlitterChoose blitter(*fBitmap, *fMatrix, p); 23728a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com // setup our state and function pointer for iterating triangles 23738a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com VertState state(count, indices, indexCount); 23748a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com VertState::Proc vertProc = state.chooseProc(vmode); 2375a76de3d1a92134c3e95ad7fce99234f92fa48268reed@google.com 23768a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com if (NULL != textures || NULL != colors) { 2377f94b3a4cebd4adab09c40ebe23c02a615e10c394bsalomon@google.com SkMatrix tempM; 2378f94b3a4cebd4adab09c40ebe23c02a615e10c394bsalomon@google.com SkMatrix savedLocalM; 2379f94b3a4cebd4adab09c40ebe23c02a615e10c394bsalomon@google.com if (shader) { 2380f94b3a4cebd4adab09c40ebe23c02a615e10c394bsalomon@google.com savedLocalM = shader->getLocalMatrix(); 2381f94b3a4cebd4adab09c40ebe23c02a615e10c394bsalomon@google.com } 2382a76de3d1a92134c3e95ad7fce99234f92fa48268reed@google.com 23838a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com if (NULL != colors) { 23848a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com if (!triShader.setContext(*fBitmap, p, *fMatrix)) { 23858a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com colors = NULL; 23868a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 23878a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 2388a76de3d1a92134c3e95ad7fce99234f92fa48268reed@google.com 23898a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com while (vertProc(&state)) { 23908a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com if (NULL != textures) { 23918a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com if (texture_to_matrix(state, vertices, textures, &tempM)) { 2392f94b3a4cebd4adab09c40ebe23c02a615e10c394bsalomon@google.com tempM.postConcat(savedLocalM); 23938a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com shader->setLocalMatrix(tempM); 23948a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com // need to recal setContext since we changed the local matrix 23958a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com if (!shader->setContext(*fBitmap, p, *fMatrix)) { 23968a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com continue; 23978a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 23988a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 23998a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 24008a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com if (NULL != colors) { 24018a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com if (!triShader.setup(vertices, colors, 24028a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com state.f0, state.f1, state.f2)) { 24038a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com continue; 24048a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 24058a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 2406045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com 2407045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com SkPoint tmp[] = { 2408045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com devVerts[state.f0], devVerts[state.f1], devVerts[state.f2] 2409045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com }; 2410045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com SkScan::FillTriangle(tmp, *fRC, blitter.get()); 24118a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 24128a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com // now restore the shader's original local matrix 24138a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com if (NULL != shader) { 2414f94b3a4cebd4adab09c40ebe23c02a615e10c394bsalomon@google.com shader->setLocalMatrix(savedLocalM); 24158a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 24168a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } else { 24178a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com // no colors[] and no texture 24188a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com HairProc hairProc = ChooseHairProc(paint.isAntiAlias()); 2419045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com const SkRasterClip& clip = *fRC; 24208a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com while (vertProc(&state)) { 2421045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com hairProc(devVerts[state.f0], devVerts[state.f1], clip, blitter.get()); 2422045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com hairProc(devVerts[state.f1], devVerts[state.f2], clip, blitter.get()); 2423045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com hairProc(devVerts[state.f2], devVerts[state.f0], clip, blitter.get()); 24248a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 24258a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 24268a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com} 24278a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 24280a0a236c3ba241046d38caaf78226ec68ff9c998reed@google.com/////////////////////////////////////////////////////////////////////////////// 24290a0a236c3ba241046d38caaf78226ec68ff9c998reed@google.com/////////////////////////////////////////////////////////////////////////////// 24308a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 24318a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com#ifdef SK_DEBUG 24328a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 2433f2b98d67dcb6fcb3120feede9c72016fc7b3ead8reed@android.comvoid SkDraw::validate() const { 24348a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkASSERT(fBitmap != NULL); 24358a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkASSERT(fMatrix != NULL); 24368a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkASSERT(fClip != NULL); 2437045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com SkASSERT(fRC != NULL); 24388a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 2439045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com const SkIRect& cr = fRC->getBounds(); 24408a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkIRect br; 24418a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 2442f2b98d67dcb6fcb3120feede9c72016fc7b3ead8reed@android.com br.set(0, 0, fBitmap->width(), fBitmap->height()); 24438a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkASSERT(cr.isEmpty() || br.contains(cr)); 24448a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com} 24458a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 24468a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com#endif 24478a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 24480a0a236c3ba241046d38caaf78226ec68ff9c998reed@google.com/////////////////////////////////////////////////////////////////////////////// 24490a0a236c3ba241046d38caaf78226ec68ff9c998reed@google.com 24500a0a236c3ba241046d38caaf78226ec68ff9c998reed@google.comSkBounder::SkBounder() { 24510a0a236c3ba241046d38caaf78226ec68ff9c998reed@google.com // initialize up front. This gets reset by SkCanvas before each draw call. 24520a0a236c3ba241046d38caaf78226ec68ff9c998reed@google.com fClip = &SkRegion::GetEmptyRegion(); 24530a0a236c3ba241046d38caaf78226ec68ff9c998reed@google.com} 24548a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 24558a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.combool SkBounder::doIRect(const SkIRect& r) { 24568a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkIRect rr; 24578a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com return rr.intersect(fClip->getBounds(), r) && this->onIRect(rr); 24588a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com} 24598a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 2460d055c1fde2128514167b315f4d104b177e04a3dereed@android.com// TODO: change the prototype to take fixed, and update the callers 2461d055c1fde2128514167b315f4d104b177e04a3dereed@android.combool SkBounder::doIRectGlyph(const SkIRect& r, int x, int y, 2462d055c1fde2128514167b315f4d104b177e04a3dereed@android.com const SkGlyph& glyph) { 2463474a12c4976b3000174cad5df74c498cd723c5e2reed@android.com SkIRect rr; 2464d055c1fde2128514167b315f4d104b177e04a3dereed@android.com if (!rr.intersect(fClip->getBounds(), r)) { 2465d055c1fde2128514167b315f4d104b177e04a3dereed@android.com return false; 2466d055c1fde2128514167b315f4d104b177e04a3dereed@android.com } 2467d055c1fde2128514167b315f4d104b177e04a3dereed@android.com GlyphRec rec; 2468d055c1fde2128514167b315f4d104b177e04a3dereed@android.com rec.fLSB.set(SkIntToFixed(x), SkIntToFixed(y)); 2469d055c1fde2128514167b315f4d104b177e04a3dereed@android.com rec.fRSB.set(rec.fLSB.fX + glyph.fAdvanceX, 2470d055c1fde2128514167b315f4d104b177e04a3dereed@android.com rec.fLSB.fY + glyph.fAdvanceY); 2471d055c1fde2128514167b315f4d104b177e04a3dereed@android.com rec.fGlyphID = glyph.getGlyphID(); 2472d055c1fde2128514167b315f4d104b177e04a3dereed@android.com rec.fFlags = 0; 2473d055c1fde2128514167b315f4d104b177e04a3dereed@android.com return this->onIRectGlyph(rr, rec); 2474474a12c4976b3000174cad5df74c498cd723c5e2reed@android.com} 2475474a12c4976b3000174cad5df74c498cd723c5e2reed@android.com 24768a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.combool SkBounder::doHairline(const SkPoint& pt0, const SkPoint& pt1, 24778a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com const SkPaint& paint) { 24788a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkIRect r; 24798a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkScalar v0, v1; 24808a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 24818a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com v0 = pt0.fX; 24828a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com v1 = pt1.fX; 24838a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com if (v0 > v1) { 24848a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkTSwap<SkScalar>(v0, v1); 24858a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 24868a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com r.fLeft = SkScalarFloor(v0); 24878a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com r.fRight = SkScalarCeil(v1); 24888a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 24898a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com v0 = pt0.fY; 24908a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com v1 = pt1.fY; 24918a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com if (v0 > v1) { 24928a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkTSwap<SkScalar>(v0, v1); 24938a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 24948a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com r.fTop = SkScalarFloor(v0); 24958a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com r.fBottom = SkScalarCeil(v1); 24968a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 24978a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com if (paint.isAntiAlias()) { 24988a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com r.inset(-1, -1); 24998a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 25008a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com return this->doIRect(r); 25018a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com} 25028a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 25038a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.combool SkBounder::doRect(const SkRect& rect, const SkPaint& paint) { 25048a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkIRect r; 25058a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 25068a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com if (paint.getStyle() == SkPaint::kFill_Style) { 25078a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com rect.round(&r); 25088a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } else { 25098a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com int rad = -1; 25108a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com rect.roundOut(&r); 25118a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com if (paint.isAntiAlias()) { 25128a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com rad = -2; 25138a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 25148a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com r.inset(rad, rad); 25158a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 25168a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com return this->doIRect(r); 25178a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com} 25188a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 25198a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.combool SkBounder::doPath(const SkPath& path, const SkPaint& paint, bool doFill) { 2520d252db03d9650013b545ef9781fe993c07f8f314reed@android.com SkIRect r; 2521d252db03d9650013b545ef9781fe993c07f8f314reed@android.com const SkRect& bounds = path.getBounds(); 25228a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 25238a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com if (doFill) { 25248a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com bounds.round(&r); 25258a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } else { // hairline 25268a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com bounds.roundOut(&r); 25278a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 25288a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 25298a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com if (paint.isAntiAlias()) { 25308a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com r.inset(-1, -1); 25318a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 25328a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com return this->doIRect(r); 25338a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com} 25348a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 25358a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.comvoid SkBounder::commit() { 25368a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com // override in subclass 25378a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com} 25388a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 25398a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com//////////////////////////////////////////////////////////////////////////////////////////////// 25408a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 25418a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com#include "SkPath.h" 25428a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com#include "SkDraw.h" 25438a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com#include "SkRegion.h" 25448a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com#include "SkBlitter.h" 25458a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 25468a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.comstatic bool compute_bounds(const SkPath& devPath, const SkIRect* clipBounds, 25478a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkMaskFilter* filter, const SkMatrix* filterMatrix, 25488a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkIRect* bounds) { 25498a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com if (devPath.isEmpty()) { 25508a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com return false; 25518a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 25528a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 25538a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com // init our bounds from the path 25548a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com { 2555d252db03d9650013b545ef9781fe993c07f8f314reed@android.com SkRect pathBounds = devPath.getBounds(); 25568a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com pathBounds.inset(-SK_ScalarHalf, -SK_ScalarHalf); 25578a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com pathBounds.roundOut(bounds); 25588a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 2559a76de3d1a92134c3e95ad7fce99234f92fa48268reed@google.com 25606db75fc2c393ba86a3f533597a8bcd348477e79ctomhudson@google.com SkIPoint margin = SkIPoint::Make(0, 0); 25618a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com if (filter) { 25628a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkASSERT(filterMatrix); 2563a76de3d1a92134c3e95ad7fce99234f92fa48268reed@google.com 25645af16f8d670b3ce1c7644a4737e02e2e2257614ebungeman@google.com SkMask srcM, dstM; 2565a76de3d1a92134c3e95ad7fce99234f92fa48268reed@google.com 25668a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com srcM.fBounds = *bounds; 25678a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com srcM.fFormat = SkMask::kA8_Format; 25688a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com srcM.fImage = NULL; 25698a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com if (!filter->filterMask(&dstM, srcM, *filterMatrix, &margin)) { 25708a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com return false; 25718a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 25728a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 2573a76de3d1a92134c3e95ad7fce99234f92fa48268reed@google.com 25745af16f8d670b3ce1c7644a4737e02e2e2257614ebungeman@google.com // (possibly) trim the bounds to reflect the clip 25758a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com // (plus whatever slop the filter needs) 25765af16f8d670b3ce1c7644a4737e02e2e2257614ebungeman@google.com if (clipBounds) { 25775af16f8d670b3ce1c7644a4737e02e2e2257614ebungeman@google.com SkIRect tmp = *clipBounds; 25783555591c158c242b071c7ec92ad75b6e4cb74af2reed@android.com // Ugh. Guard against gigantic margins from wacky filters. Without this 25793555591c158c242b071c7ec92ad75b6e4cb74af2reed@android.com // check we can request arbitrary amounts of slop beyond our visible 25803555591c158c242b071c7ec92ad75b6e4cb74af2reed@android.com // clip, and bring down the renderer (at least on finite RAM machines 25813555591c158c242b071c7ec92ad75b6e4cb74af2reed@android.com // like handsets, etc.). Need to balance this invented value between 25823555591c158c242b071c7ec92ad75b6e4cb74af2reed@android.com // quality of large filters like blurs, and the corresponding memory 25833555591c158c242b071c7ec92ad75b6e4cb74af2reed@android.com // requests. 25843555591c158c242b071c7ec92ad75b6e4cb74af2reed@android.com static const int MAX_MARGIN = 128; 25853555591c158c242b071c7ec92ad75b6e4cb74af2reed@android.com tmp.inset(-SkMin32(margin.fX, MAX_MARGIN), 25863555591c158c242b071c7ec92ad75b6e4cb74af2reed@android.com -SkMin32(margin.fY, MAX_MARGIN)); 25875af16f8d670b3ce1c7644a4737e02e2e2257614ebungeman@google.com if (!bounds->intersect(tmp)) { 25885af16f8d670b3ce1c7644a4737e02e2e2257614ebungeman@google.com return false; 25895af16f8d670b3ce1c7644a4737e02e2e2257614ebungeman@google.com } 25908a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 25918a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 25928a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com return true; 25938a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com} 25948a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 25952ac4ef5e6e0c9c95c9200408ba25a95ca758eac2junov@chromium.orgstatic void draw_into_mask(const SkMask& mask, const SkPath& devPath, 25962ac4ef5e6e0c9c95c9200408ba25a95ca758eac2junov@chromium.org SkPaint::Style style) { 2597045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com SkBitmap bm; 2598045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com SkDraw draw; 2599045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com SkRasterClip clip; 2600045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com SkMatrix matrix; 2601045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com SkPaint paint; 26028a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 26038a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com bm.setConfig(SkBitmap::kA8_Config, mask.fBounds.width(), mask.fBounds.height(), mask.fRowBytes); 26048a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com bm.setPixels(mask.fImage); 26058a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 2606045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com clip.setRect(SkIRect::MakeWH(mask.fBounds.width(), mask.fBounds.height())); 26078a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com matrix.setTranslate(-SkIntToScalar(mask.fBounds.fLeft), 26088a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com -SkIntToScalar(mask.fBounds.fTop)); 26098a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 26108a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com draw.fBitmap = &bm; 2611045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com draw.fRC = &clip; 2612045e62d715f5ee9b03deb5af3c750f8318096179reed@google.com draw.fClip = &clip.bwRgn(); 26138a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com draw.fMatrix = &matrix; 26148a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com draw.fBounder = NULL; 26158a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com paint.setAntiAlias(true); 26162ac4ef5e6e0c9c95c9200408ba25a95ca758eac2junov@chromium.org paint.setStyle(style); 26178a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com draw.drawPath(devPath, paint); 26188a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com} 26198a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 26208a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.combool SkDraw::DrawToMask(const SkPath& devPath, const SkIRect* clipBounds, 26218a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkMaskFilter* filter, const SkMatrix* filterMatrix, 26222ac4ef5e6e0c9c95c9200408ba25a95ca758eac2junov@chromium.org SkMask* mask, SkMask::CreateMode mode, 26232ac4ef5e6e0c9c95c9200408ba25a95ca758eac2junov@chromium.org SkPaint::Style style) { 26248a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com if (SkMask::kJustRenderImage_CreateMode != mode) { 26258a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com if (!compute_bounds(devPath, clipBounds, filter, filterMatrix, &mask->fBounds)) 26268a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com return false; 26278a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 2628a76de3d1a92134c3e95ad7fce99234f92fa48268reed@google.com 26298a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com if (SkMask::kComputeBoundsAndRenderImage_CreateMode == mode) { 26308a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com mask->fFormat = SkMask::kA8_Format; 26318a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com mask->fRowBytes = mask->fBounds.width(); 2632543ed9352c7dfd93071c08b14930cca2e82a08d4reed@android.com size_t size = mask->computeImageSize(); 2633543ed9352c7dfd93071c08b14930cca2e82a08d4reed@android.com if (0 == size) { 2634543ed9352c7dfd93071c08b14930cca2e82a08d4reed@android.com // we're too big to allocate the mask, abort 2635543ed9352c7dfd93071c08b14930cca2e82a08d4reed@android.com return false; 2636543ed9352c7dfd93071c08b14930cca2e82a08d4reed@android.com } 2637543ed9352c7dfd93071c08b14930cca2e82a08d4reed@android.com mask->fImage = SkMask::AllocImage(size); 26388a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com memset(mask->fImage, 0, mask->computeImageSize()); 26398a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 26408a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 26418a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com if (SkMask::kJustComputeBounds_CreateMode != mode) { 26422ac4ef5e6e0c9c95c9200408ba25a95ca758eac2junov@chromium.org draw_into_mask(*mask, devPath, style); 26438a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 2644a76de3d1a92134c3e95ad7fce99234f92fa48268reed@google.com 26458a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com return true; 26468a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com} 2647