SkBlitter_ARGB32.cpp revision 7989186dab6bc2f1c1927daf91bddd32b7fd8d0c
1ec3ed6a5ebf6f2c406d7bcf94b6bc34fcaeb976eepoger@google.com/* 2ec3ed6a5ebf6f2c406d7bcf94b6bc34fcaeb976eepoger@google.com * Copyright 2006 The Android Open Source Project 3ec3ed6a5ebf6f2c406d7bcf94b6bc34fcaeb976eepoger@google.com * 4ec3ed6a5ebf6f2c406d7bcf94b6bc34fcaeb976eepoger@google.com * Use of this source code is governed by a BSD-style license that can be 5ec3ed6a5ebf6f2c406d7bcf94b6bc34fcaeb976eepoger@google.com * found in the LICENSE file. 6ec3ed6a5ebf6f2c406d7bcf94b6bc34fcaeb976eepoger@google.com */ 7ec3ed6a5ebf6f2c406d7bcf94b6bc34fcaeb976eepoger@google.com 88a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com#include "SkCoreBlitters.h" 98a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com#include "SkColorPriv.h" 108a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com#include "SkShader.h" 118a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com#include "SkUtils.h" 128a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com#include "SkXfermode.h" 1358af9a64701540c7f8083bc22a42d0bae3a5583creed@google.com#include "SkBlitMask.h" 148a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 15f88d6765a594cf9fb0825b74779f74394a7ccc7areed@google.com/////////////////////////////////////////////////////////////////////////////// 16f88d6765a594cf9fb0825b74779f74394a7ccc7areed@google.com 17f2b98d67dcb6fcb3120feede9c72016fc7b3ead8reed@android.comstatic void SkARGB32_Blit32(const SkBitmap& device, const SkMask& mask, 18f2b98d67dcb6fcb3120feede9c72016fc7b3ead8reed@android.com const SkIRect& clip, SkPMColor srcColor) { 19f2b98d67dcb6fcb3120feede9c72016fc7b3ead8reed@android.com U8CPU alpha = SkGetPackedA32(srcColor); 20f2b98d67dcb6fcb3120feede9c72016fc7b3ead8reed@android.com unsigned flags = SkBlitRow::kSrcPixelAlpha_Flag32; 21f2b98d67dcb6fcb3120feede9c72016fc7b3ead8reed@android.com if (alpha != 255) { 22f2b98d67dcb6fcb3120feede9c72016fc7b3ead8reed@android.com flags |= SkBlitRow::kGlobalAlpha_Flag32; 23f2b98d67dcb6fcb3120feede9c72016fc7b3ead8reed@android.com } 24f2b98d67dcb6fcb3120feede9c72016fc7b3ead8reed@android.com SkBlitRow::Proc32 proc = SkBlitRow::Factory32(flags); 25f2b98d67dcb6fcb3120feede9c72016fc7b3ead8reed@android.com 26f2b98d67dcb6fcb3120feede9c72016fc7b3ead8reed@android.com int x = clip.fLeft; 27f2b98d67dcb6fcb3120feede9c72016fc7b3ead8reed@android.com int y = clip.fTop; 28f2b98d67dcb6fcb3120feede9c72016fc7b3ead8reed@android.com int width = clip.width(); 29f2b98d67dcb6fcb3120feede9c72016fc7b3ead8reed@android.com int height = clip.height(); 3082065d667f64e232bcde2ad849756a6096fcbe6freed@google.com 31f2b98d67dcb6fcb3120feede9c72016fc7b3ead8reed@android.com SkPMColor* dstRow = device.getAddr32(x, y); 327989186dab6bc2f1c1927daf91bddd32b7fd8d0creed@google.com const SkPMColor* srcRow = reinterpret_cast<const SkPMColor*>(mask.getAddr8(x, y)); 33f2b98d67dcb6fcb3120feede9c72016fc7b3ead8reed@android.com 34f2b98d67dcb6fcb3120feede9c72016fc7b3ead8reed@android.com do { 35f2b98d67dcb6fcb3120feede9c72016fc7b3ead8reed@android.com proc(dstRow, srcRow, width, alpha); 36f2b98d67dcb6fcb3120feede9c72016fc7b3ead8reed@android.com dstRow = (SkPMColor*)((char*)dstRow + device.rowBytes()); 37f2b98d67dcb6fcb3120feede9c72016fc7b3ead8reed@android.com srcRow = (const SkPMColor*)((const char*)srcRow + mask.fRowBytes); 38f2b98d67dcb6fcb3120feede9c72016fc7b3ead8reed@android.com } while (--height != 0); 39f2b98d67dcb6fcb3120feede9c72016fc7b3ead8reed@android.com} 40f2b98d67dcb6fcb3120feede9c72016fc7b3ead8reed@android.com 41f2b98d67dcb6fcb3120feede9c72016fc7b3ead8reed@android.com////////////////////////////////////////////////////////////////////////////////////// 42f2b98d67dcb6fcb3120feede9c72016fc7b3ead8reed@android.com 438a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.comSkARGB32_Blitter::SkARGB32_Blitter(const SkBitmap& device, const SkPaint& paint) 448a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com : INHERITED(device) { 45ee467ee79d449ebe6ae7f7946e613cc70a479c69reed@google.com SkColor color = paint.getColor(); 46ee467ee79d449ebe6ae7f7946e613cc70a479c69reed@google.com fColor = color; 478a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 488a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com fSrcA = SkColorGetA(color); 498a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com unsigned scale = SkAlpha255To256(fSrcA); 508a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com fSrcR = SkAlphaMul(SkColorGetR(color), scale); 518a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com fSrcG = SkAlphaMul(SkColorGetG(color), scale); 528a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com fSrcB = SkAlphaMul(SkColorGetB(color), scale); 538a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 548a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com fPMColor = SkPackARGB32(fSrcA, fSrcR, fSrcG, fSrcB); 5529e5054dd07c97c2195c5f64bf67aaa6b5afa204senorblanco@chromium.org fColor32Proc = SkBlitRow::ColorProcFactory(); 568a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com} 578a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 588a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.comconst SkBitmap* SkARGB32_Blitter::justAnOpaqueColor(uint32_t* value) { 598a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com if (255 == fSrcA) { 608a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com *value = fPMColor; 618a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com return &fDevice; 628a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 638a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com return NULL; 648a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com} 658a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 668a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com#if defined _WIN32 && _MSC_VER >= 1300 // disable warning : local variable used without having been initialized 678a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com#pragma warning ( push ) 688a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com#pragma warning ( disable : 4701 ) 698a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com#endif 708a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 718a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.comvoid SkARGB32_Blitter::blitH(int x, int y, int width) { 728a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkASSERT(x >= 0 && y >= 0 && x + width <= fDevice.width()); 738a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 7429e5054dd07c97c2195c5f64bf67aaa6b5afa204senorblanco@chromium.org uint32_t* device = fDevice.getAddr32(x, y); 7529e5054dd07c97c2195c5f64bf67aaa6b5afa204senorblanco@chromium.org fColor32Proc(device, device, width, fPMColor); 768a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com} 778a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 788a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.comvoid SkARGB32_Blitter::blitAntiH(int x, int y, const SkAlpha antialias[], 798a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com const int16_t runs[]) { 808a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com if (fSrcA == 0) { 818a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com return; 828a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 838a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 848a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com uint32_t color = fPMColor; 858a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com uint32_t* device = fDevice.getAddr32(x, y); 868a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com unsigned opaqueMask = fSrcA; // if fSrcA is 0xFF, then we will catch the fast opaque case 878a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 888a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com for (;;) { 898a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com int count = runs[0]; 908a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkASSERT(count >= 0); 918a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com if (count <= 0) { 928a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com return; 938a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 948a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com unsigned aa = antialias[0]; 958a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com if (aa) { 968a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com if ((opaqueMask & aa) == 255) { 978a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com sk_memset32(device, color, count); 988a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } else { 99c4cae85752e3e486cf4eac8cd8128f57b6f40563reed@android.com uint32_t sc = SkAlphaMulQ(color, SkAlpha255To256(aa)); 10029e5054dd07c97c2195c5f64bf67aaa6b5afa204senorblanco@chromium.org fColor32Proc(device, device, count, sc); 1018a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 1028a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 1038a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com runs += count; 1048a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com antialias += count; 1058a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com device += count; 1068a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 1078a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com} 1088a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 1098a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com////////////////////////////////////////////////////////////////////////////////////// 1108a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 1118a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com#define solid_8_pixels(mask, dst, color) \ 1128a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com do { \ 1138a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com if (mask & 0x80) dst[0] = color; \ 1148a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com if (mask & 0x40) dst[1] = color; \ 1158a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com if (mask & 0x20) dst[2] = color; \ 1168a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com if (mask & 0x10) dst[3] = color; \ 1178a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com if (mask & 0x08) dst[4] = color; \ 1188a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com if (mask & 0x04) dst[5] = color; \ 1198a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com if (mask & 0x02) dst[6] = color; \ 1208a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com if (mask & 0x01) dst[7] = color; \ 1218a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } while (0) 1228a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 1238a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com#define SK_BLITBWMASK_NAME SkARGB32_BlitBW 1248a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com#define SK_BLITBWMASK_ARGS , SkPMColor color 1258a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com#define SK_BLITBWMASK_BLIT8(mask, dst) solid_8_pixels(mask, dst, color) 1268a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com#define SK_BLITBWMASK_GETADDR getAddr32 1278a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com#define SK_BLITBWMASK_DEVTYPE uint32_t 1288a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com#include "SkBlitBWMaskTemplate.h" 1298a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 1308a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com#define blend_8_pixels(mask, dst, sc, dst_scale) \ 1318a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com do { \ 1328a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com if (mask & 0x80) { dst[0] = sc + SkAlphaMulQ(dst[0], dst_scale); } \ 1338a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com if (mask & 0x40) { dst[1] = sc + SkAlphaMulQ(dst[1], dst_scale); } \ 1348a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com if (mask & 0x20) { dst[2] = sc + SkAlphaMulQ(dst[2], dst_scale); } \ 1358a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com if (mask & 0x10) { dst[3] = sc + SkAlphaMulQ(dst[3], dst_scale); } \ 1368a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com if (mask & 0x08) { dst[4] = sc + SkAlphaMulQ(dst[4], dst_scale); } \ 1378a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com if (mask & 0x04) { dst[5] = sc + SkAlphaMulQ(dst[5], dst_scale); } \ 1388a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com if (mask & 0x02) { dst[6] = sc + SkAlphaMulQ(dst[6], dst_scale); } \ 1398a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com if (mask & 0x01) { dst[7] = sc + SkAlphaMulQ(dst[7], dst_scale); } \ 1408a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } while (0) 1418a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 1428a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com#define SK_BLITBWMASK_NAME SkARGB32_BlendBW 1438a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com#define SK_BLITBWMASK_ARGS , uint32_t sc, unsigned dst_scale 1448a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com#define SK_BLITBWMASK_BLIT8(mask, dst) blend_8_pixels(mask, dst, sc, dst_scale) 1458a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com#define SK_BLITBWMASK_GETADDR getAddr32 1468a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com#define SK_BLITBWMASK_DEVTYPE uint32_t 1478a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com#include "SkBlitBWMaskTemplate.h" 1488a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 1498a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.comvoid SkARGB32_Blitter::blitMask(const SkMask& mask, const SkIRect& clip) { 1508a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkASSERT(mask.fBounds.contains(clip)); 1518a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkASSERT(fSrcA != 0xFF); 1528a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 1538a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com if (fSrcA == 0) { 1548a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com return; 1558a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 1568a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 157edb606cb999887d54629f361bcbf57c5fede1bb0reed@google.com if (SkBlitMask::BlitColor(fDevice, mask, clip, fColor)) { 158edb606cb999887d54629f361bcbf57c5fede1bb0reed@google.com return; 159edb606cb999887d54629f361bcbf57c5fede1bb0reed@google.com } 160edb606cb999887d54629f361bcbf57c5fede1bb0reed@google.com 1618a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com if (mask.fFormat == SkMask::kBW_Format) { 1628a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkARGB32_BlendBW(fDevice, mask, clip, fPMColor, SkAlpha255To256(255 - fSrcA)); 163f2b98d67dcb6fcb3120feede9c72016fc7b3ead8reed@android.com } else if (SkMask::kARGB32_Format == mask.fFormat) { 164f2b98d67dcb6fcb3120feede9c72016fc7b3ead8reed@android.com SkARGB32_Blit32(fDevice, mask, clip, fPMColor); 1658a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 1668a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com} 1678a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 1688a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.comvoid SkARGB32_Opaque_Blitter::blitMask(const SkMask& mask, 1698a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com const SkIRect& clip) { 1708a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkASSERT(mask.fBounds.contains(clip)); 1718a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 172edb606cb999887d54629f361bcbf57c5fede1bb0reed@google.com if (SkBlitMask::BlitColor(fDevice, mask, clip, fColor)) { 173edb606cb999887d54629f361bcbf57c5fede1bb0reed@google.com return; 174edb606cb999887d54629f361bcbf57c5fede1bb0reed@google.com } 175edb606cb999887d54629f361bcbf57c5fede1bb0reed@google.com 1768a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com if (mask.fFormat == SkMask::kBW_Format) { 1778a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkARGB32_BlitBW(fDevice, mask, clip, fPMColor); 178f2b98d67dcb6fcb3120feede9c72016fc7b3ead8reed@android.com } else if (SkMask::kARGB32_Format == mask.fFormat) { 179f2b98d67dcb6fcb3120feede9c72016fc7b3ead8reed@android.com SkARGB32_Blit32(fDevice, mask, clip, fPMColor); 180f2b98d67dcb6fcb3120feede9c72016fc7b3ead8reed@android.com } 1818a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com} 1828a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 1838a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com////////////////////////////////////////////////////////////////////////////////////// 1848a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 1858a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.comvoid SkARGB32_Blitter::blitV(int x, int y, int height, SkAlpha alpha) { 1868a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com if (alpha == 0 || fSrcA == 0) { 1878a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com return; 1888a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 1898a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 1908a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com uint32_t* device = fDevice.getAddr32(x, y); 1918a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com uint32_t color = fPMColor; 1928a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 1938a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com if (alpha != 255) { 1948a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com color = SkAlphaMulQ(color, SkAlpha255To256(alpha)); 1958a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 1968a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 1978a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com unsigned dst_scale = 255 - SkGetPackedA32(color); 1988a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com uint32_t prevDst = ~device[0]; 1998a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com uint32_t result SK_INIT_TO_AVOID_WARNING; 2008a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com uint32_t rowBytes = fDevice.rowBytes(); 2018a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 2028a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com while (--height >= 0) { 2038a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com uint32_t dst = device[0]; 2048a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com if (dst != prevDst) { 2058a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com result = color + SkAlphaMulQ(dst, dst_scale); 2068a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com prevDst = dst; 2078a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 2088a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com device[0] = result; 2098a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com device = (uint32_t*)((char*)device + rowBytes); 2108a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 2118a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com} 2128a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 2138a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.comvoid SkARGB32_Blitter::blitRect(int x, int y, int width, int height) { 2148a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkASSERT(x >= 0 && y >= 0 && x + width <= fDevice.width() && y + height <= fDevice.height()); 2158a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 2168a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com if (fSrcA == 0) { 2178a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com return; 2188a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 2198a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 2208a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com uint32_t* device = fDevice.getAddr32(x, y); 2218a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com uint32_t color = fPMColor; 222c4cae85752e3e486cf4eac8cd8128f57b6f40563reed@android.com size_t rowBytes = fDevice.rowBytes(); 2238a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 224c4cae85752e3e486cf4eac8cd8128f57b6f40563reed@android.com while (--height >= 0) { 22529e5054dd07c97c2195c5f64bf67aaa6b5afa204senorblanco@chromium.org fColor32Proc(device, device, width, color); 226c4cae85752e3e486cf4eac8cd8128f57b6f40563reed@android.com device = (uint32_t*)((char*)device + rowBytes); 2278a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 2288a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com} 2298a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 2308a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com#if defined _WIN32 && _MSC_VER >= 1300 2318a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com#pragma warning ( pop ) 2328a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com#endif 2338a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 2348a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com/////////////////////////////////////////////////////////////////////// 2358a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 2368a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.comvoid SkARGB32_Black_Blitter::blitAntiH(int x, int y, const SkAlpha antialias[], 2378a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com const int16_t runs[]) { 2388a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com uint32_t* device = fDevice.getAddr32(x, y); 2398a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkPMColor black = (SkPMColor)(SK_A32_MASK << SK_A32_SHIFT); 2408a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 2418a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com for (;;) { 2428a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com int count = runs[0]; 2438a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkASSERT(count >= 0); 2448a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com if (count <= 0) { 2458a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com return; 2468a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 2478a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com unsigned aa = antialias[0]; 2488a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com if (aa) { 2498a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com if (aa == 255) { 2508a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com sk_memset32(device, black, count); 2518a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } else { 2528a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkPMColor src = aa << SK_A32_SHIFT; 2538a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com unsigned dst_scale = 256 - aa; 2548a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com int n = count; 2558a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com do { 2568a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com --n; 2578a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com device[n] = src + SkAlphaMulQ(device[n], dst_scale); 2588a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } while (n > 0); 2598a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 2608a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 2618a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com runs += count; 2628a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com antialias += count; 2638a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com device += count; 2648a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 2658a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com} 2668a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 2678a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com////////////////////////////////////////////////////////////////////////////////////////// 2688a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 2698a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.comSkARGB32_Shader_Blitter::SkARGB32_Shader_Blitter(const SkBitmap& device, 270c4cae85752e3e486cf4eac8cd8128f57b6f40563reed@android.com const SkPaint& paint) : INHERITED(device, paint) { 2718a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com fBuffer = (SkPMColor*)sk_malloc_throw(device.width() * (sizeof(SkPMColor))); 2728a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 273c4cae85752e3e486cf4eac8cd8128f57b6f40563reed@android.com fXfermode = paint.getXfermode(); 274c4cae85752e3e486cf4eac8cd8128f57b6f40563reed@android.com SkSafeRef(fXfermode); 275c4cae85752e3e486cf4eac8cd8128f57b6f40563reed@android.com 276c4cae85752e3e486cf4eac8cd8128f57b6f40563reed@android.com int flags = 0; 277c4cae85752e3e486cf4eac8cd8128f57b6f40563reed@android.com if (!(fShader->getFlags() & SkShader::kOpaqueAlpha_Flag)) { 278c4cae85752e3e486cf4eac8cd8128f57b6f40563reed@android.com flags |= SkBlitRow::kSrcPixelAlpha_Flag32; 279c4cae85752e3e486cf4eac8cd8128f57b6f40563reed@android.com } 280c4cae85752e3e486cf4eac8cd8128f57b6f40563reed@android.com // we call this on the output from the shader 281c4cae85752e3e486cf4eac8cd8128f57b6f40563reed@android.com fProc32 = SkBlitRow::Factory32(flags); 282c4cae85752e3e486cf4eac8cd8128f57b6f40563reed@android.com // we call this on the output from the shader + alpha from the aa buffer 283c4cae85752e3e486cf4eac8cd8128f57b6f40563reed@android.com fProc32Blend = SkBlitRow::Factory32(flags | SkBlitRow::kGlobalAlpha_Flag32); 2848a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com} 2858a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 2868a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.comSkARGB32_Shader_Blitter::~SkARGB32_Shader_Blitter() { 28782065d667f64e232bcde2ad849756a6096fcbe6freed@google.com SkSafeUnref(fXfermode); 2888a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com sk_free(fBuffer); 2898a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com} 2908a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 2918a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.comvoid SkARGB32_Shader_Blitter::blitH(int x, int y, int width) { 2928a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkASSERT(x >= 0 && y >= 0 && x + width <= fDevice.width()); 2938a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 2948a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com uint32_t* device = fDevice.getAddr32(x, y); 2958a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 2968a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com if (fXfermode == NULL && (fShader->getFlags() & SkShader::kOpaqueAlpha_Flag)) { 2978a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com fShader->shadeSpan(x, y, device, width); 2988a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } else { 2998a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkPMColor* span = fBuffer; 3008a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com fShader->shadeSpan(x, y, span, width); 3018a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com if (fXfermode) { 3028a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com fXfermode->xfer32(device, span, width, NULL); 3038a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } else { 304c4cae85752e3e486cf4eac8cd8128f57b6f40563reed@android.com fProc32(device, span, width, 255); 3058a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 3068a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 3078a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com} 3088a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 3098a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com/////////////////////////////////////////////////////////////////////////////////////////////// 3108a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 3118a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.comvoid SkARGB32_Shader_Blitter::blitAntiH(int x, int y, const SkAlpha antialias[], 3128a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com const int16_t runs[]) { 3138a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkPMColor* span = fBuffer; 3148a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com uint32_t* device = fDevice.getAddr32(x, y); 3158a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkShader* shader = fShader; 3168a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 3178a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com if (fXfermode) { 3188a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com for (;;) { 3198a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com SkXfermode* xfer = fXfermode; 3208a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com 3218a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com int count = *runs; 3228a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com if (count <= 0) 3238a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com break; 3248a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com int aa = *antialias; 3258a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com if (aa) { 3268a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com shader->shadeSpan(x, y, span, count); 3278a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com if (aa == 255) { 3288a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com xfer->xfer32(device, span, count, NULL); 3298a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } else { 3308a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com // count is almost always 1 3318a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com for (int i = count - 1; i >= 0; --i) { 3328a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com xfer->xfer32(&device[i], &span[i], 1, antialias); 3338a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 3348a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 3358a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 3368a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com device += count; 3378a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com runs += count; 3388a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com antialias += count; 3398a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com x += count; 34082065d667f64e232bcde2ad849756a6096fcbe6freed@google.com } 3418a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } else if (fShader->getFlags() & SkShader::kOpaqueAlpha_Flag) { 3428a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com for (;;) { 3438a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com int count = *runs; 3448a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com if (count <= 0) { 3458a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com break; 3468a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 3478a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com int aa = *antialias; 3488a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com if (aa) { 349c4cae85752e3e486cf4eac8cd8128f57b6f40563reed@android.com if (aa == 255) { 350c4cae85752e3e486cf4eac8cd8128f57b6f40563reed@android.com // cool, have the shader draw right into the device 3518a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com shader->shadeSpan(x, y, device, count); 3528a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } else { 3538a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com shader->shadeSpan(x, y, span, count); 354c4cae85752e3e486cf4eac8cd8128f57b6f40563reed@android.com fProc32Blend(device, span, count, aa); 3558a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 3568a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 3578a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com device += count; 3588a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com runs += count; 3598a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com antialias += count; 3608a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com x += count; 36182065d667f64e232bcde2ad849756a6096fcbe6freed@google.com } 362c4cae85752e3e486cf4eac8cd8128f57b6f40563reed@android.com } else { // no xfermode but the shader not opaque 3638a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com for (;;) { 3648a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com int count = *runs; 3658a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com if (count <= 0) { 3668a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com break; 3678a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 3688a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com int aa = *antialias; 3698a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com if (aa) { 3708a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com fShader->shadeSpan(x, y, span, count); 3718a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com if (aa == 255) { 372c4cae85752e3e486cf4eac8cd8128f57b6f40563reed@android.com fProc32(device, span, count, 255); 3738a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } else { 374c4cae85752e3e486cf4eac8cd8128f57b6f40563reed@android.com fProc32Blend(device, span, count, aa); 3758a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 3768a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 3778a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com device += count; 3788a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com runs += count; 3798a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com antialias += count; 3808a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com x += count; 38182065d667f64e232bcde2ad849756a6096fcbe6freed@google.com } 3828a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com } 3838a1c16ff38322f0210116fa7293eb8817c7e477ereed@android.com} 384