skia2/tools/gpu/YUVUtils.cpp

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/*
* Copyright 2019 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#include "tools/gpu/YUVUtils.h"
#include "include/core/SkData.h"
#include "include/gpu/GrRecordingContext.h"
#include "src/codec/SkCodecImageGenerator.h"
#include "src/gpu/GrContextPriv.h"
#include "src/gpu/GrRecordingContextPriv.h"
namespace sk_gpu_test {
std::unique_ptr<LazyYUVImage> LazyYUVImage::Make(sk_sp<SkData> data, GrMipmapped mipmapped) {
std::unique_ptr<LazyYUVImage> image(new LazyYUVImage());
if (image->reset(std::move(data), mipmapped)) {
return image;
} else {
return nullptr;
}
}
sk_sp<SkImage> LazyYUVImage::refImage(GrRecordingContext* rContext) {
if (this->ensureYUVImage(rContext)) {
return fYUVImage;
} else {
return nullptr;
}
}
const SkImage* LazyYUVImage::getImage(GrRecordingContext* rContext) {
if (this->ensureYUVImage(rContext)) {
return fYUVImage.get();
} else {
return nullptr;
}
}
bool LazyYUVImage::reset(sk_sp<SkData> data, GrMipmapped mipmapped) {
fMipmapped = mipmapped;
auto codec = SkCodecImageGenerator::MakeFromEncodedCodec(data);
if (!codec) {
return false;
}
if (!codec->queryYUVA8(&fSizeInfo, fComponents, &fColorSpace)) {
return false;
}
fPlaneData.reset(fSizeInfo.computeTotalBytes());
void* planes[SkYUVASizeInfo::kMaxCount];
fSizeInfo.computePlanes(fPlaneData.get(), planes);
if (!codec->getYUVA8Planes(fSizeInfo, fComponents, planes)) {
return false;
}
for (int i = 0; i < SkYUVASizeInfo::kMaxCount; ++i) {
if (fSizeInfo.fSizes[i].isEmpty()) {
fPlanes[i].reset();
} else {
SkASSERT(planes[i]);
auto planeInfo = SkImageInfo::Make(fSizeInfo.fSizes[i].fWidth,
fSizeInfo.fSizes[i].fHeight,
kGray_8_SkColorType, kOpaque_SkAlphaType, nullptr);
fPlanes[i].reset(planeInfo, planes[i], fSizeInfo.fWidthBytes[i]);
}
}
// The SkPixmap data is fully configured now for MakeFromYUVAPixmaps once we get a GrContext
return true;
}
bool LazyYUVImage::ensureYUVImage(GrRecordingContext* rContext) {
if (!rContext) {
return false; // Cannot make a YUV image from planes
}
if (fYUVImage && fYUVImage->isValid(rContext)) {
return true; // Have already made a YUV image valid for this context.
}
// Try to make a new YUV image for this context.
fYUVImage = SkImage::MakeFromYUVAPixmaps(rContext->priv().backdoor(),
fColorSpace,
fPlanes,
fComponents,
fSizeInfo.fSizes[0],
kTopLeft_GrSurfaceOrigin,
static_cast<bool>(fMipmapped),
false);
return fYUVImage != nullptr;
}
///////////////////////////////////////////////////////////////////////////////////////////////////
void YUVABackendReleaseContext::Unwind(GrDirectContext* dContext,
YUVABackendReleaseContext* beContext,
bool fullFlush) {
// Some backends (e.g., Vulkan) require that all work associated w/ texture
// creation be completed before deleting the textures.
if (fullFlush) {
// If the release context client performed some operations other than backend texture
// creation then we may require a full flush to ensure that all the work is completed.
dContext->flush();
dContext->submit(true);
} else {
dContext->submit();
while (!beContext->creationCompleted()) {
dContext->checkAsyncWorkCompletion();
}
}
delete beContext;
}
YUVABackendReleaseContext::YUVABackendReleaseContext(GrDirectContext* dContext)
: fDContext(dContext) {
}
YUVABackendReleaseContext::~YUVABackendReleaseContext() {
for (int i = 0; i < 4; ++i) {
if (fBETextures[i].isValid()) {
SkASSERT(fCreationComplete[i]);
fDContext->deleteBackendTexture(fBETextures[i]);
}
}
}
template<int I> static void CreationComplete(void* releaseContext) {
auto beContext = reinterpret_cast<YUVABackendReleaseContext*>(releaseContext);
beContext->setCreationComplete(I);
}
GrGpuFinishedProc YUVABackendReleaseContext::CreationCompleteProc(int index) {
SkASSERT(index >= 0 && index < 4);
switch (index) {
case 0: return CreationComplete<0>;
case 1: return CreationComplete<1>;
case 2: return CreationComplete<2>;
case 3: return CreationComplete<3>;
}
SK_ABORT("Invalid YUVA Index.");
return nullptr;
}
} // namespace sk_gpu_test