diff options
Diffstat (limited to 'src/core/SkConfig8888.cpp')
-rw-r--r-- | src/core/SkConfig8888.cpp | 142 |
1 files changed, 0 insertions, 142 deletions
diff --git a/src/core/SkConfig8888.cpp b/src/core/SkConfig8888.cpp index b0572c0544..189309dae6 100644 --- a/src/core/SkConfig8888.cpp +++ b/src/core/SkConfig8888.cpp @@ -1,15 +1,5 @@ -/* - * Copyright 2014 Google Inc. - * - * Use of this source code is governed by a BSD-style license that can be - * found in the LICENSE file. - */ - -#include "SkBitmap.h" -#include "SkCanvas.h" #include "SkConfig8888.h" #include "SkColorPriv.h" -#include "SkDither.h" #include "SkMathPriv.h" #include "SkUnPreMultiply.h" @@ -125,135 +115,3 @@ bool SkSrcPixelInfo::convertPixelsTo(SkDstPixelInfo* dst, int width, int height) } return true; } - -static void rect_memcpy(void* dst, size_t dstRB, const void* src, size_t srcRB, size_t bytesPerRow, - int rowCount) { - SkASSERT(bytesPerRow <= srcRB); - SkASSERT(bytesPerRow <= dstRB); - for (int i = 0; i < rowCount; ++i) { - memcpy(dst, src, bytesPerRow); - dst = (char*)dst + dstRB; - src = (const char*)src + srcRB; - } -} - -bool SkPixelInfo::CopyPixels(const SkImageInfo& dstInfo, void* dstPixels, size_t dstRB, - const SkImageInfo& srcInfo, const void* srcPixels, size_t srcRB, - SkColorTable* ctable) { - if (srcInfo.dimensions() != dstInfo.dimensions()) { - return false; - } - - const int width = srcInfo.width(); - const int height = srcInfo.height(); - - // Handle fancy alpha swizzling if both are ARGB32 - if (4 == srcInfo.bytesPerPixel() && 4 == dstInfo.bytesPerPixel()) { - SkDstPixelInfo dstPI; - dstPI.fColorType = dstInfo.colorType(); - dstPI.fAlphaType = dstInfo.alphaType(); - dstPI.fPixels = dstPixels; - dstPI.fRowBytes = dstRB; - - SkSrcPixelInfo srcPI; - srcPI.fColorType = srcInfo.colorType(); - srcPI.fAlphaType = srcInfo.alphaType(); - srcPI.fPixels = srcPixels; - srcPI.fRowBytes = srcRB; - - return srcPI.convertPixelsTo(&dstPI, width, height); - } - - // If they agree on colorType and the alphaTypes are compatible, then we just memcpy. - // Note: we've already taken care of 32bit colortypes above. - if (srcInfo.colorType() == dstInfo.colorType()) { - switch (srcInfo.colorType()) { - case kRGB_565_SkColorType: - case kAlpha_8_SkColorType: - break; - case kIndex_8_SkColorType: - case kARGB_4444_SkColorType: - if (srcInfo.alphaType() != dstInfo.alphaType()) { - return false; - } - break; - default: - return false; - } - rect_memcpy(dstPixels, dstRB, srcPixels, srcRB, width * srcInfo.bytesPerPixel(), height); - return true; - } - - /* - * Begin section where we try to change colorTypes along the way. Not all combinations - * are supported. - */ - - // Can no longer draw directly into 4444, but we can manually whack it for a few combinations - if (kARGB_4444_SkColorType == dstInfo.colorType() && - (kN32_SkColorType == srcInfo.colorType() || kIndex_8_SkColorType == srcInfo.colorType())) { - if (srcInfo.alphaType() == kUnpremul_SkAlphaType) { - // Our method for converting to 4444 assumes premultiplied. - return false; - } - - const SkPMColor* table = NULL; - if (kIndex_8_SkColorType == srcInfo.colorType()) { - if (NULL == ctable) { - return false; - } - table = ctable->lockColors(); - } - - for (int y = 0; y < height; ++y) { - DITHER_4444_SCAN(y); - SkPMColor16* SK_RESTRICT dstRow = (SkPMColor16*)dstPixels; - if (table) { - const uint8_t* SK_RESTRICT srcRow = (const uint8_t*)srcPixels; - for (int x = 0; x < width; ++x) { - dstRow[x] = SkDitherARGB32To4444(table[srcRow[x]], DITHER_VALUE(x)); - } - } else { - const SkPMColor* SK_RESTRICT srcRow = (const SkPMColor*)srcPixels; - for (int x = 0; x < width; ++x) { - dstRow[x] = SkDitherARGB32To4444(srcRow[x], DITHER_VALUE(x)); - } - } - dstPixels = (char*)dstPixels + dstRB; - srcPixels = (const char*)srcPixels + srcRB; - } - - if (table) { - ctable->unlockColors(); - } - return true; - } - - if (dstInfo.alphaType() == kUnpremul_SkAlphaType) { - // We do not support drawing to unpremultiplied bitmaps. - return false; - } - - // Final fall-back, draw with a canvas - // - // Always clear the dest in case one of the blitters accesses it - // TODO: switch the allocation of tmpDst to call sk_calloc_throw - { - SkBitmap bm; - if (!bm.installPixels(srcInfo, const_cast<void*>(srcPixels), srcRB, ctable, NULL, NULL)) { - return false; - } - SkAutoTUnref<SkCanvas> canvas(SkCanvas::NewRasterDirect(dstInfo, dstPixels, dstRB)); - if (NULL == canvas.get()) { - return false; - } - - SkPaint paint; - paint.setDither(true); - - canvas->clear(0); - canvas->drawBitmap(bm, 0, 0, &paint); - return true; - } -} - |