chromium/third_party/skia/src/core/SkConvertPixels.cpp

/*
 * 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 "src/core/SkConvertPixels.h"

#include "include/core/SkColorType.h"
#include "include/core/SkImageInfo.h"
#include "include/core/SkSize.h"
#include "include/private/SkColorData.h"
#include "include/private/base/SkAssert.h"
#include "include/private/base/SkTPin.h"
#include "include/private/base/SkTemplates.h"
#include "src/base/SkHalf.h"
#include "src/base/SkRectMemcpy.h"
#include "src/core/SkColorSpaceXformSteps.h"
#include "src/core/SkImageInfoPriv.h"
#include "src/core/SkRasterPipeline.h"
#include "src/core/SkRasterPipelineOpContexts.h"
#include "src/core/SkSwizzlePriv.h"

#include <cstdint>
#include <cstring>
#include <initializer_list>

static bool rect_memcpy(const SkImageInfo& dstInfo,       void* dstPixels, size_t dstRB,
                        const SkImageInfo& srcInfo, const void* srcPixels, size_t srcRB,
                        const SkColorSpaceXformSteps& steps) { … }

static bool swizzle_or_premul(const SkImageInfo& dstInfo,       void* dstPixels, size_t dstRB,
                              const SkImageInfo& srcInfo, const void* srcPixels, size_t srcRB,
                              const SkColorSpaceXformSteps& steps) { … }

static bool convert_to_alpha8(const SkImageInfo& dstInfo,       void* vdst, size_t dstRB,
                              const SkImageInfo& srcInfo, const void*  src, size_t srcRB,
                              const SkColorSpaceXformSteps&) { … }

// Default: Use the pipeline.
static void convert_with_pipeline(const SkImageInfo& dstInfo, void* dstRow, int dstStride,
                                  const SkImageInfo& srcInfo, const void* srcRow, int srcStride,
                                  const SkColorSpaceXformSteps& steps) { … }

bool SkConvertPixels(const SkImageInfo& dstInfo,       void* dstPixels, size_t dstRB,
                     const SkImageInfo& srcInfo, const void* srcPixels, size_t srcRB) { … }