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/*
* Copyright 2018 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#include <cstddef>
#include <cstring>
#include <type_traits>
#include "include/core/SkYUVASizeInfo.h"
#include "include/gpu/GrContext.h"
#include "include/gpu/GrTexture.h"
#include "include/private/GrRecordingContext.h"
#include "src/core/SkAutoPixmapStorage.h"
#include "src/core/SkMipMap.h"
#include "src/core/SkScopeExit.h"
#include "src/gpu/GrBitmapTextureMaker.h"
#include "src/gpu/GrClip.h"
#include "src/gpu/GrContextPriv.h"
#include "src/gpu/GrGpu.h"
#include "src/gpu/GrRecordingContextPriv.h"
#include "src/gpu/GrRenderTargetContext.h"
#include "src/gpu/GrTextureProducer.h"
#include "src/gpu/SkGr.h"
#include "src/gpu/effects/GrYUVtoRGBEffect.h"
#include "src/image/SkImage_Gpu.h"
#include "src/image/SkImage_GpuYUVA.h"
static constexpr auto kAssumedColorType = kRGBA_8888_SkColorType;
SkImage_GpuYUVA::SkImage_GpuYUVA(sk_sp<GrContext> context, SkISize size, uint32_t uniqueID,
SkYUVColorSpace colorSpace, sk_sp<GrTextureProxy> proxies[],
GrColorType proxyColorTypes[], int numProxies,
const SkYUVAIndex yuvaIndices[4], GrSurfaceOrigin origin,
sk_sp<SkColorSpace> imageColorSpace)
: INHERITED(std::move(context), size, uniqueID, kAssumedColorType,
// If an alpha channel is present we always switch to kPremul. This is because,
// although the planar data is always un-premul, the final interleaved RGB image
// is/would-be premul.
GetAlphaTypeFromYUVAIndices(yuvaIndices), std::move(imageColorSpace))
, fNumProxies(numProxies)
, fYUVColorSpace(colorSpace)
, fOrigin(origin) {
// The caller should have done this work, just verifying
SkDEBUGCODE(int textureCount;)
SkASSERT(SkYUVAIndex::AreValidIndices(yuvaIndices, &textureCount));
SkASSERT(textureCount == fNumProxies);
for (int i = 0; i < numProxies; ++i) {
fProxies[i] = std::move(proxies[i]);
fProxyColorTypes[i] = proxyColorTypes[i];
}
memcpy(fYUVAIndices, yuvaIndices, 4*sizeof(SkYUVAIndex));
}
// For onMakeColorSpace()
SkImage_GpuYUVA::SkImage_GpuYUVA(const SkImage_GpuYUVA* image, sk_sp<SkColorSpace> targetCS)
: INHERITED(image->fContext, image->dimensions(), kNeedNewImageUniqueID, kAssumedColorType,
// If an alpha channel is present we always switch to kPremul. This is because,
// although the planar data is always un-premul, the final interleaved RGB image
// is/would-be premul.
GetAlphaTypeFromYUVAIndices(image->fYUVAIndices), std::move(targetCS))
, fNumProxies(image->fNumProxies)
, fYUVColorSpace(image->fYUVColorSpace)
, fOrigin(image->fOrigin)
// Since null fFromColorSpace means no GrColorSpaceXform, we turn a null
// image->refColorSpace() into an explicit SRGB.
, fFromColorSpace(image->colorSpace() ? image->refColorSpace() : SkColorSpace::MakeSRGB()) {
// The caller should have done this work, just verifying
SkDEBUGCODE(int textureCount;)
SkASSERT(SkYUVAIndex::AreValidIndices(image->fYUVAIndices, &textureCount));
SkASSERT(textureCount == fNumProxies);
if (image->fRGBView.proxy()) {
fRGBView = image->fRGBView; // we ref in this case, not move
} else {
for (int i = 0; i < fNumProxies; ++i) {
fProxies[i] = image->fProxies[i]; // we ref in this case, not move
fProxyColorTypes[i] = image->fProxyColorTypes[i];
}
}
memcpy(fYUVAIndices, image->fYUVAIndices, 4 * sizeof(SkYUVAIndex));
}
bool SkImage_GpuYUVA::setupMipmapsForPlanes(GrRecordingContext* context) const {
// We shouldn't get here if the planes were already flattened to RGBA.
SkASSERT(fProxies[0] && !fRGBView.proxy());
if (!context || !fContext->priv().matches(context)) {
return false;
}
for (int i = 0; i < fNumProxies; ++i) {
GrTextureProducer::CopyParams copyParams;
int mipCount = SkMipMap::ComputeLevelCount(fProxies[i]->width(), fProxies[i]->height());
if (mipCount && GrGpu::IsACopyNeededForMips(fContext->priv().caps(),
fProxies[i].get(),
GrSamplerState::Filter::kMipMap,
&copyParams)) {
auto mippedView = GrCopyBaseMipMapToTextureProxy(context, fProxies[i].get(), fOrigin,
fProxyColorTypes[i]);
if (!mippedView.proxy()) {
return false;
}
fProxies[i] = mippedView.asTextureProxyRef();
}
}
return true;
}
//////////////////////////////////////////////////////////////////////////////////////////////////
GrSemaphoresSubmitted SkImage_GpuYUVA::onFlush(GrContext* context, const GrFlushInfo& info) {
if (!context || !fContext->priv().matches(context) || fContext->abandoned()) {
return GrSemaphoresSubmitted::kNo;
}
GrSurfaceProxy* proxies[4] = {fProxies[0].get(), fProxies[1].get(),
fProxies[2].get(), fProxies[3].get()};
int numProxies = fNumProxies;
if (fRGBView.proxy()) {
// Either we've already flushed the flattening draw or the flattening is unflushed. In the
// latter case it should still be ok to just pass fRGBView proxy because it in turn depends
// on the planar proxies and will cause all of their work to flush as well.
proxies[0] = fRGBView.proxy();
numProxies = 1;
}
return context->priv().flushSurfaces(proxies, numProxies, info);
}
GrTextureProxy* SkImage_GpuYUVA::peekProxy() const {
return fRGBView.asTextureProxy();
}
void SkImage_GpuYUVA::flattenToRGB(GrRecordingContext* context) const {
if (fRGBView.proxy()) {
return;
}
if (!context || !fContext->priv().matches(context)) {
return;
}
// Needs to create a render target in order to draw to it for the yuv->rgb conversion.
auto renderTargetContext = GrRenderTargetContext::Make(
context, GrColorType::kRGBA_8888, this->refColorSpace(), SkBackingFit::kExact,
this->dimensions(), 1, GrMipMapped::kNo, GrProtected::kNo, fOrigin);
if (!renderTargetContext) {
return;
}
sk_sp<GrColorSpaceXform> colorSpaceXform;
if (fFromColorSpace) {
colorSpaceXform = GrColorSpaceXform::Make(fFromColorSpace.get(), this->alphaType(),
this->colorSpace(), this->alphaType());
}
const SkRect rect = SkRect::MakeIWH(this->width(), this->height());
if (!RenderYUVAToRGBA(fContext.get(), renderTargetContext.get(), rect, fYUVColorSpace,
std::move(colorSpaceXform), fProxies, fYUVAIndices)) {
return;
}
fRGBView = renderTargetContext->readSurfaceView();
SkASSERT(fRGBView.origin() == fOrigin);
SkASSERT(fRGBView.swizzle() == GrSwizzle());
for (auto& p : fProxies) {
p.reset();
}
}
sk_sp<GrTextureProxy> SkImage_GpuYUVA::asTextureProxyRef(GrRecordingContext* context) const {
this->flattenToRGB(context);
return fRGBView.asTextureProxyRef();
}
GrSurfaceProxyView SkImage_GpuYUVA::refMippedView(GrRecordingContext* context) const {
// if invalid or already has miplevels
this->flattenToRGB(context);
if (!fRGBView.proxy() || GrMipMapped::kYes == fRGBView.asTextureProxy()->mipMapped()) {
return fRGBView;
}
// need to generate mips for the proxy
GrColorType srcColorType = SkColorTypeToGrColorType(this->colorType());
GrSurfaceProxyView mippedView = GrCopyBaseMipMapToTextureProxy(
context, fRGBView.proxy(), fRGBView.origin(), srcColorType);
if (mippedView.proxy()) {
fRGBView = std::move(mippedView);
return fRGBView;
}
// failed to generate mips
return {};
}
const GrSurfaceProxyView* SkImage_GpuYUVA::view(GrRecordingContext* context) const {
this->flattenToRGB(context);
if (!fRGBView.proxy()) {
return nullptr;
}
return &fRGBView;
}
//////////////////////////////////////////////////////////////////////////////////////////////////
sk_sp<SkImage> SkImage_GpuYUVA::onMakeColorTypeAndColorSpace(GrRecordingContext*,
SkColorType,
sk_sp<SkColorSpace> targetCS) const {
// We explicitly ignore color type changes, for now.
// we may need a mutex here but for now we expect usage to be in a single thread
if (fOnMakeColorSpaceTarget &&
SkColorSpace::Equals(targetCS.get(), fOnMakeColorSpaceTarget.get())) {
return fOnMakeColorSpaceResult;
}
sk_sp<SkImage> result = sk_sp<SkImage>(new SkImage_GpuYUVA(this, targetCS));
if (result) {
fOnMakeColorSpaceTarget = targetCS;
fOnMakeColorSpaceResult = result;
}
return result;
}
sk_sp<SkImage> SkImage_GpuYUVA::onReinterpretColorSpace(sk_sp<SkColorSpace> newCS) const {
return sk_make_sp<SkImage_GpuYUVA>(fContext, this->dimensions(), kNeedNewImageUniqueID,
fYUVColorSpace, fProxies, fProxyColorTypes, fNumProxies,
fYUVAIndices, fOrigin, std::move(newCS));
}
//////////////////////////////////////////////////////////////////////////////////////////////////
sk_sp<SkImage> SkImage::MakeFromYUVATextures(GrContext* ctx,
SkYUVColorSpace colorSpace,
const GrBackendTexture yuvaTextures[],
const SkYUVAIndex yuvaIndices[4],
SkISize imageSize,
GrSurfaceOrigin imageOrigin,
sk_sp<SkColorSpace> imageColorSpace) {
int numTextures;
if (!SkYUVAIndex::AreValidIndices(yuvaIndices, &numTextures)) {
return nullptr;
}
sk_sp<GrTextureProxy> tempTextureProxies[4];
if (!SkImage_GpuBase::MakeTempTextureProxies(ctx, yuvaTextures, numTextures, yuvaIndices,
imageOrigin, tempTextureProxies)) {
return nullptr;
}
GrColorType proxyColorTypes[4];
for (int i = 0; i < numTextures; ++i) {
proxyColorTypes[i] = ctx->priv().caps()->getYUVAColorTypeFromBackendFormat(
yuvaTextures[i].getBackendFormat(), yuvaIndices[3].fIndex == i);
}
return sk_make_sp<SkImage_GpuYUVA>(sk_ref_sp(ctx), imageSize, kNeedNewImageUniqueID, colorSpace,
tempTextureProxies, proxyColorTypes, numTextures,
yuvaIndices, imageOrigin, imageColorSpace);
}
sk_sp<SkImage> SkImage::MakeFromYUVAPixmaps(
GrContext* context, SkYUVColorSpace yuvColorSpace, const SkPixmap yuvaPixmaps[],
const SkYUVAIndex yuvaIndices[4], SkISize imageSize, GrSurfaceOrigin imageOrigin,
bool buildMips, bool limitToMaxTextureSize, sk_sp<SkColorSpace> imageColorSpace) {
if (!context) {
return nullptr; // until we impl this for raster backend
}
int numPixmaps;
if (!SkYUVAIndex::AreValidIndices(yuvaIndices, &numPixmaps)) {
return nullptr;
}
if (!context->priv().caps()->mipMapSupport()) {
buildMips = false;
}
// Make proxies
sk_sp<GrTextureProxy> tempTextureProxies[4];
GrColorType proxyColorTypes[4];
for (int i = 0; i < numPixmaps; ++i) {
const SkPixmap* pixmap = &yuvaPixmaps[i];
SkAutoPixmapStorage resized;
int maxTextureSize = context->priv().caps()->maxTextureSize();
int maxDim = SkTMax(yuvaPixmaps[i].width(), yuvaPixmaps[i].height());
if (limitToMaxTextureSize && maxDim > maxTextureSize) {
float scale = static_cast<float>(maxTextureSize) / maxDim;
int newWidth = SkTMin(static_cast<int>(yuvaPixmaps[i].width() * scale),
maxTextureSize);
int newHeight = SkTMin(static_cast<int>(yuvaPixmaps[i].height() * scale),
maxTextureSize);
SkImageInfo info = yuvaPixmaps[i].info().makeWH(newWidth, newHeight);
if (!resized.tryAlloc(info) ||
!yuvaPixmaps[i].scalePixels(resized, kLow_SkFilterQuality)) {
return nullptr;
}
pixmap = &resized;
}
// Turn the pixmap into a GrTextureProxy
SkBitmap bmp;
bmp.installPixels(*pixmap);
GrBitmapTextureMaker bitmapMaker(context, bmp);
GrMipMapped mipMapped = buildMips ? GrMipMapped::kYes : GrMipMapped::kNo;
GrSurfaceProxyView view;
std::tie(view, proxyColorTypes[i]) = bitmapMaker.view(mipMapped);
if (!view.proxy()) {
return nullptr;
}
tempTextureProxies[i] = view.asTextureProxyRef();
}
return sk_make_sp<SkImage_GpuYUVA>(sk_ref_sp(context), imageSize, kNeedNewImageUniqueID,
yuvColorSpace, tempTextureProxies, proxyColorTypes,
numPixmaps, yuvaIndices, imageOrigin, imageColorSpace);
}
/////////////////////////////////////////////////////////////////////////////////////////////////
sk_sp<SkImage> SkImage_GpuYUVA::MakePromiseYUVATexture(
GrContext* context,
SkYUVColorSpace yuvColorSpace,
const GrBackendFormat yuvaFormats[],
const SkISize yuvaSizes[],
const SkYUVAIndex yuvaIndices[4],
int imageWidth,
int imageHeight,
GrSurfaceOrigin imageOrigin,
sk_sp<SkColorSpace> imageColorSpace,
PromiseImageTextureFulfillProc textureFulfillProc,
PromiseImageTextureReleaseProc textureReleaseProc,
PromiseImageTextureDoneProc promiseDoneProc,
PromiseImageTextureContext textureContexts[],
PromiseImageApiVersion version) {
int numTextures;
bool valid = SkYUVAIndex::AreValidIndices(yuvaIndices, &numTextures);
// The contract here is that if 'promiseDoneProc' is passed in it should always be called,
// even if creation of the SkImage fails. Once we call MakePromiseImageLazyProxy it takes
// responsibility for calling the done proc.
if (!promiseDoneProc) {
return nullptr;
}
int proxiesCreated = 0;
SkScopeExit callDone([promiseDoneProc, textureContexts, numTextures, &proxiesCreated]() {
for (int i = proxiesCreated; i < numTextures; ++i) {
promiseDoneProc(textureContexts[i]);
}
});
if (!valid) {
return nullptr;
}
if (!context) {
return nullptr;
}
if (imageWidth <= 0 || imageHeight <= 0) {
return nullptr;
}
SkAlphaType at = (-1 != yuvaIndices[SkYUVAIndex::kA_Index].fIndex) ? kPremul_SkAlphaType
: kOpaque_SkAlphaType;
SkImageInfo info = SkImageInfo::Make(imageWidth, imageHeight, kAssumedColorType,
at, imageColorSpace);
if (!SkImageInfoIsValid(info)) {
return nullptr;
}
// verify sizes with expected texture count
for (int i = 0; i < numTextures; ++i) {
if (yuvaSizes[i].isEmpty()) {
return nullptr;
}
}
for (int i = numTextures; i < SkYUVASizeInfo::kMaxCount; ++i) {
if (!yuvaSizes[i].isEmpty()) {
return nullptr;
}
}
// Get lazy proxies
sk_sp<GrTextureProxy> proxies[4];
GrColorType proxyColorTypes[4];
for (int texIdx = 0; texIdx < numTextures; ++texIdx) {
GrColorType colorType = context->priv().caps()->getYUVAColorTypeFromBackendFormat(
yuvaFormats[texIdx],
yuvaIndices[3].fIndex == texIdx);
if (GrColorType::kUnknown == colorType) {
return nullptr;
}
proxies[texIdx] = MakePromiseImageLazyProxy(
context, yuvaSizes[texIdx].width(), yuvaSizes[texIdx].height(), imageOrigin,
colorType, yuvaFormats[texIdx], GrMipMapped::kNo, textureFulfillProc,
textureReleaseProc, promiseDoneProc, textureContexts[texIdx], version);
++proxiesCreated;
if (!proxies[texIdx]) {
return nullptr;
}
proxyColorTypes[texIdx] = colorType;
}
return sk_make_sp<SkImage_GpuYUVA>(sk_ref_sp(context), SkISize{imageWidth, imageHeight},
kNeedNewImageUniqueID, yuvColorSpace, proxies,
proxyColorTypes, numTextures, yuvaIndices, imageOrigin,
std::move(imageColorSpace));
}