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- /*
- * 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 "include/core/SkImage.h"
- #include "include/core/SkImageGenerator.h"
- #include "include/core/SkYUVAIndex.h"
- #include "src/core/SkNextID.h"
- SkImageGenerator::SkImageGenerator(const SkImageInfo& info, uint32_t uniqueID)
- : fInfo(info)
- , fUniqueID(kNeedNewImageUniqueID == uniqueID ? SkNextID::ImageID() : uniqueID)
- {}
- bool SkImageGenerator::getPixels(const SkImageInfo& info, void* pixels, size_t rowBytes) {
- if (kUnknown_SkColorType == info.colorType()) {
- return false;
- }
- if (nullptr == pixels) {
- return false;
- }
- if (rowBytes < info.minRowBytes()) {
- return false;
- }
- Options defaultOpts;
- return this->onGetPixels(info, pixels, rowBytes, defaultOpts);
- }
- bool SkImageGenerator::queryYUVA8(SkYUVASizeInfo* sizeInfo,
- SkYUVAIndex yuvaIndices[SkYUVAIndex::kIndexCount],
- SkYUVColorSpace* colorSpace) const {
- SkASSERT(sizeInfo);
- return this->onQueryYUVA8(sizeInfo, yuvaIndices, colorSpace);
- }
- bool SkImageGenerator::getYUVA8Planes(const SkYUVASizeInfo& sizeInfo,
- const SkYUVAIndex yuvaIndices[SkYUVAIndex::kIndexCount],
- void* planes[SkYUVASizeInfo::kMaxCount]) {
- for (int i = 0; i < SkYUVASizeInfo::kMaxCount; ++i) {
- SkASSERT(sizeInfo.fSizes[i].fWidth >= 0);
- SkASSERT(sizeInfo.fSizes[i].fHeight >= 0);
- SkASSERT(sizeInfo.fWidthBytes[i] >= (size_t) sizeInfo.fSizes[i].fWidth);
- }
- int numPlanes = 0;
- SkASSERT(SkYUVAIndex::AreValidIndices(yuvaIndices, &numPlanes));
- SkASSERT(planes);
- for (int i = 0; i < numPlanes; ++i) {
- SkASSERT(planes[i]);
- }
- return this->onGetYUVA8Planes(sizeInfo, yuvaIndices, planes);
- }
- #if SK_SUPPORT_GPU
- #include "src/gpu/GrTextureProxy.h"
- sk_sp<GrTextureProxy> SkImageGenerator::generateTexture(GrRecordingContext* ctx,
- const SkImageInfo& info,
- const SkIPoint& origin,
- bool willNeedMipMaps) {
- SkIRect srcRect = SkIRect::MakeXYWH(origin.x(), origin.y(), info.width(), info.height());
- if (!SkIRect::MakeWH(fInfo.width(), fInfo.height()).contains(srcRect)) {
- return nullptr;
- }
- return this->onGenerateTexture(ctx, info, origin, willNeedMipMaps);
- }
- sk_sp<GrTextureProxy> SkImageGenerator::onGenerateTexture(GrRecordingContext*,
- const SkImageInfo&,
- const SkIPoint&,
- bool willNeedMipMaps) {
- return nullptr;
- }
- #endif
- ///////////////////////////////////////////////////////////////////////////////////////////////////
- #include "include/core/SkBitmap.h"
- #include "src/codec/SkColorTable.h"
- #include "include/core/SkGraphics.h"
- static SkGraphics::ImageGeneratorFromEncodedDataFactory gFactory;
- SkGraphics::ImageGeneratorFromEncodedDataFactory
- SkGraphics::SetImageGeneratorFromEncodedDataFactory(ImageGeneratorFromEncodedDataFactory factory)
- {
- ImageGeneratorFromEncodedDataFactory prev = gFactory;
- gFactory = factory;
- return prev;
- }
- std::unique_ptr<SkImageGenerator> SkImageGenerator::MakeFromEncoded(sk_sp<SkData> data) {
- if (!data) {
- return nullptr;
- }
- if (gFactory) {
- if (std::unique_ptr<SkImageGenerator> generator = gFactory(data)) {
- return generator;
- }
- }
- return SkImageGenerator::MakeFromEncodedImpl(std::move(data));
- }
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