/*
* Copyright 2011 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#include "GrBackendSemaphore.h"
#include "GrContext.h"
#include "GrClip.h"
#include "GrContextOptions.h"
#include "GrContextPriv.h"
#include "GrDrawingManager.h"
#include "GrGpu.h"
#include "GrProxyProvider.h"
#include "GrRenderTargetContext.h"
#include "GrRenderTargetProxy.h"
#include "GrResourceCache.h"
#include "GrResourceProvider.h"
#include "GrSemaphore.h"
#include "GrSoftwarePathRenderer.h"
#include "GrSurfaceContext.h"
#include "GrSurfacePriv.h"
#include "GrSurfaceProxyPriv.h"
#include "GrTexture.h"
#include "GrTextureContext.h"
#include "GrTracing.h"
#include "SkConvertPixels.h"
#include "SkDeferredDisplayList.h"
#include "SkGr.h"
#include "SkJSONWriter.h"
#include "SkMakeUnique.h"
#include "SkTaskGroup.h"
#include "SkUnPreMultiplyPriv.h"
#include "effects/GrConfigConversionEffect.h"
#include "text/GrTextBlobCache.h"
#include "gl/GrGLGpu.h"
#include "mock/GrMockGpu.h"
#ifdef SK_METAL
#include "mtl/GrMtlTrampoline.h"
#endif
#include "ddl/GrDDLGpu.h"
#ifdef SK_VULKAN
#include "vk/GrVkGpu.h"
#endif
#define ASSERT_OWNED_PROXY(P) \
SkASSERT(!(P) || !((P)->priv().peekTexture()) || (P)->priv().peekTexture()->getContext() == this)
#define ASSERT_OWNED_PROXY_PRIV(P) \
SkASSERT(!(P) || !((P)->priv().peekTexture()) || (P)->priv().peekTexture()->getContext() == fContext)
#define ASSERT_OWNED_RESOURCE(R) SkASSERT(!(R) || (R)->getContext() == this)
#define ASSERT_SINGLE_OWNER \
SkDEBUGCODE(GrSingleOwner::AutoEnforce debug_SingleOwner(&fSingleOwner);)
#define ASSERT_SINGLE_OWNER_PRIV \
SkDEBUGCODE(GrSingleOwner::AutoEnforce debug_SingleOwner(&fContext->fSingleOwner);)
#define RETURN_IF_ABANDONED if (fDrawingManager->wasAbandoned()) { return; }
#define RETURN_IF_ABANDONED_PRIV if (fContext->fDrawingManager->wasAbandoned()) { return; }
#define RETURN_FALSE_IF_ABANDONED if (fDrawingManager->wasAbandoned()) { return false; }
#define RETURN_FALSE_IF_ABANDONED_PRIV if (fContext->fDrawingManager->wasAbandoned()) { return false; }
#define RETURN_NULL_IF_ABANDONED if (fDrawingManager->wasAbandoned()) { return nullptr; }
////////////////////////////////////////////////////////////////////////////////
class SK_API GrDirectContext : public GrContext {
public:
GrDirectContext(GrBackend backend) : INHERITED(backend) { }
protected:
private:
typedef GrContext INHERITED;
};
class SK_API GrDDLContext : public GrContext {
public:
GrDDLContext(GrContextThreadSafeProxy* proxy) : INHERITED(proxy) {}
protected:
private:
typedef GrContext INHERITED;
};
GrContext* GrContext::Create(GrBackend backend, GrBackendContext backendContext) {
GrContextOptions defaultOptions;
return Create(backend, backendContext, defaultOptions);
}
GrContext* GrContext::Create(GrBackend backend, GrBackendContext backendContext,
const GrContextOptions& options) {
sk_sp<GrContext> context(new GrDirectContext(backend));
context->fGpu = GrGpu::Make(backend, backendContext, options, context.get());
if (!context->fGpu) {
return nullptr;
}
if (!context->init(options)) {
return nullptr;
}
return context.release();
}
sk_sp<GrContext> GrContext::MakeGL(sk_sp<const GrGLInterface> interface) {
GrContextOptions defaultOptions;
return MakeGL(std::move(interface), defaultOptions);
}
sk_sp<GrContext> GrContext::MakeGL(sk_sp<const GrGLInterface> interface,
const GrContextOptions& options) {
sk_sp<GrContext> context(new GrDirectContext(kOpenGL_GrBackend));
context->fGpu = GrGLGpu::Make(std::move(interface), options, context.get());
if (!context->fGpu) {
return nullptr;
}
if (!context->init(options)) {
return nullptr;
}
return context;
}
sk_sp<GrContext> GrContext::MakeGL(const GrGLInterface* interface) {
return MakeGL(sk_ref_sp(interface));
}
sk_sp<GrContext> GrContext::MakeGL(const GrGLInterface* interface,
const GrContextOptions& options) {
return MakeGL(sk_ref_sp(interface), options);
}
sk_sp<GrContext> GrContext::MakeMock(const GrMockOptions* mockOptions) {
GrContextOptions defaultOptions;
return MakeMock(mockOptions, defaultOptions);
}
sk_sp<GrContext> GrContext::MakeMock(const GrMockOptions* mockOptions,
const GrContextOptions& options) {
sk_sp<GrContext> context(new GrDirectContext(kMock_GrBackend));
context->fGpu = GrMockGpu::Make(mockOptions, options, context.get());
if (!context->fGpu) {
return nullptr;
}
if (!context->init(options)) {
return nullptr;
}
return context;
}
#ifdef SK_VULKAN
sk_sp<GrContext> GrContext::MakeVulkan(sk_sp<const GrVkBackendContext> backendContext) {
GrContextOptions defaultOptions;
return MakeVulkan(std::move(backendContext), defaultOptions);
}
sk_sp<GrContext> GrContext::MakeVulkan(sk_sp<const GrVkBackendContext> backendContext,
const GrContextOptions& options) {
sk_sp<GrContext> context(new GrDirectContext(kVulkan_GrBackend));
context->fGpu = GrVkGpu::Make(std::move(backendContext), options, context.get());
if (!context->fGpu) {
return nullptr;
}
if (!context->init(options)) {
return nullptr;
}
return context;
}
#endif
#ifdef SK_METAL
sk_sp<GrContext> GrContext::MakeMetal(void* device, void* queue) {
GrContextOptions defaultOptions;
return MakeMetal(device, queue, defaultOptions);
}
sk_sp<GrContext> GrContext::MakeMetal(void* device, void* queue, const GrContextOptions& options) {
sk_sp<GrContext> context(new GrContext(kMetal_GrBackend));
context->fGpu = GrMtlTrampoline::MakeGpu(context.get(), options, device, queue);
if (!context->fGpu) {
return nullptr;
}
if (!context->init(options)) {
return nullptr;
}
return context;
}
#endif
static int32_t gNextID = 1;
static int32_t next_id() {
int32_t id;
do {
id = sk_atomic_inc(&gNextID);
} while (id == SK_InvalidGenID);
return id;
}
sk_sp<GrContext> GrContextPriv::MakeDDL(GrContextThreadSafeProxy* proxy) {
sk_sp<GrContext> context(new GrDDLContext(proxy));
// Note: we aren't creating a Gpu here. This causes the resource provider & cache to
// also not be created
if (!context->init(proxy->fOptions)) {
return nullptr;
}
return context;
}
GrContext::GrContext(GrBackend backend)
: fUniqueID(next_id())
, fBackend(backend) {
fResourceCache = nullptr;
fResourceProvider = nullptr;
fProxyProvider = nullptr;
fAtlasGlyphCache = nullptr;
}
GrContext::GrContext(GrContextThreadSafeProxy* proxy)
: fCaps(proxy->fCaps)
, fUniqueID(proxy->fContextUniqueID)
, fBackend(proxy->fBackend) {
fResourceCache = nullptr;
fResourceProvider = nullptr;
fProxyProvider = nullptr;
fAtlasGlyphCache = nullptr;
}
bool GrContext::init(const GrContextOptions& options) {
ASSERT_SINGLE_OWNER
if (fGpu) {
fCaps = fGpu->refCaps();
fResourceCache = new GrResourceCache(fCaps.get(), fUniqueID);
fResourceProvider = new GrResourceProvider(fGpu.get(), fResourceCache, &fSingleOwner);
}
fProxyProvider = new GrProxyProvider(fResourceProvider, fResourceCache, fCaps, &fSingleOwner);
if (fResourceCache) {
fResourceCache->setProxyProvider(fProxyProvider);
}
// DDL TODO: we need to think through how the task group & persistent cache
// get passed on to/shared between all the DDLRecorders created with this context.
fThreadSafeProxy.reset(new GrContextThreadSafeProxy(fCaps, this->uniqueID(), fBackend,
options));
fDisableGpuYUVConversion = options.fDisableGpuYUVConversion;
fDidTestPMConversions = false;
GrPathRendererChain::Options prcOptions;
prcOptions.fAllowPathMaskCaching = options.fAllowPathMaskCaching;
#if GR_TEST_UTILS
prcOptions.fGpuPathRenderers = options.fGpuPathRenderers;
#endif
if (options.fDisableDistanceFieldPaths) {
prcOptions.fGpuPathRenderers &= ~GpuPathRenderers::kSmall;
}
if (!fResourceCache) {
// DDL TODO: remove this crippling of the path renderer chain
// Disable the small path renderer bc of the proxies in the atlas. They need to be
// unified when the opLists are added back to the destination drawing manager.
prcOptions.fGpuPathRenderers &= ~GpuPathRenderers::kSmall;
}
GrAtlasTextContext::Options atlasTextContextOptions;
atlasTextContextOptions.fMaxDistanceFieldFontSize = options.fGlyphsAsPathsFontSize;
atlasTextContextOptions.fMinDistanceFieldFontSize = options.fMinDistanceFieldFontSize;
atlasTextContextOptions.fDistanceFieldVerticesAlwaysHaveW = false;
#if SK_SUPPORT_ATLAS_TEXT
if (GrContextOptions::Enable::kYes == options.fDistanceFieldGlyphVerticesAlwaysHaveW) {
atlasTextContextOptions.fDistanceFieldVerticesAlwaysHaveW = true;
}
#endif
fDrawingManager.reset(
new GrDrawingManager(this, prcOptions, atlasTextContextOptions, &fSingleOwner));
GrDrawOpAtlas::AllowMultitexturing allowMultitexturing;
if (GrContextOptions::Enable::kNo == options.fAllowMultipleGlyphCacheTextures ||
// multitexturing supported only if range can represent the index + texcoords fully
!(fCaps->shaderCaps()->floatIs32Bits() || fCaps->shaderCaps()->integerSupport())) {
allowMultitexturing = GrDrawOpAtlas::AllowMultitexturing::kNo;
} else {
allowMultitexturing = GrDrawOpAtlas::AllowMultitexturing::kYes;
}
fAtlasGlyphCache = new GrAtlasGlyphCache(this, options.fGlyphCacheTextureMaximumBytes,
allowMultitexturing);
this->contextPriv().addOnFlushCallbackObject(fAtlasGlyphCache);
fTextBlobCache.reset(new GrTextBlobCache(TextBlobCacheOverBudgetCB, this, this->uniqueID()));
if (options.fExecutor) {
fTaskGroup = skstd::make_unique<SkTaskGroup>(*options.fExecutor);
}
fPersistentCache = options.fPersistentCache;
return true;
}
GrContext::~GrContext() {
ASSERT_SINGLE_OWNER
if (fGpu) {
this->flush();
}
if (fDrawingManager) {
fDrawingManager->cleanup();
}
for (int i = 0; i < fCleanUpData.count(); ++i) {
(*fCleanUpData[i].fFunc)(this, fCleanUpData[i].fInfo);
}
delete fResourceProvider;
delete fResourceCache;
delete fProxyProvider;
delete fAtlasGlyphCache;
}
sk_sp<GrContextThreadSafeProxy> GrContext::threadSafeProxy() {
return fThreadSafeProxy;
}
void GrContext::abandonContext() {
ASSERT_SINGLE_OWNER
fProxyProvider->abandon();
fResourceProvider->abandon();
// Need to abandon the drawing manager first so all the render targets
// will be released/forgotten before they too are abandoned.
fDrawingManager->abandon();
// abandon first to so destructors
// don't try to free the resources in the API.
fResourceCache->abandonAll();
fGpu->disconnect(GrGpu::DisconnectType::kAbandon);
fAtlasGlyphCache->freeAll();
fTextBlobCache->freeAll();
}
void GrContext::releaseResourcesAndAbandonContext() {
ASSERT_SINGLE_OWNER
fProxyProvider->abandon();
fResourceProvider->abandon();
// Need to abandon the drawing manager first so all the render targets
// will be released/forgotten before they too are abandoned.
fDrawingManager->abandon();
// Release all resources in the backend 3D API.
fResourceCache->releaseAll();
fGpu->disconnect(GrGpu::DisconnectType::kCleanup);
fAtlasGlyphCache->freeAll();
fTextBlobCache->freeAll();
}
void GrContext::resetContext(uint32_t state) {
ASSERT_SINGLE_OWNER
fGpu->markContextDirty(state);
}
void GrContext::freeGpuResources() {
ASSERT_SINGLE_OWNER
this->flush();
fAtlasGlyphCache->freeAll();
fDrawingManager->freeGpuResources();
fResourceCache->purgeAllUnlocked();
}
void GrContext::performDeferredCleanup(std::chrono::milliseconds msNotUsed) {
ASSERT_SINGLE_OWNER
fResourceCache->purgeAsNeeded();
fResourceCache->purgeResourcesNotUsedSince(GrStdSteadyClock::now() - msNotUsed);
fTextBlobCache->purgeStaleBlobs();
}
void GrContext::purgeUnlockedResources(size_t bytesToPurge, bool preferScratchResources) {
ASSERT_SINGLE_OWNER
fResourceCache->purgeUnlockedResources(bytesToPurge, preferScratchResources);
}
void GrContext::getResourceCacheUsage(int* resourceCount, size_t* resourceBytes) const {
ASSERT_SINGLE_OWNER
if (resourceCount) {
*resourceCount = fResourceCache->getBudgetedResourceCount();
}
if (resourceBytes) {
*resourceBytes = fResourceCache->getBudgetedResourceBytes();
}
}
size_t GrContext::getResourceCachePurgeableBytes() const {
ASSERT_SINGLE_OWNER
return fResourceCache->getPurgeableBytes();
}
////////////////////////////////////////////////////////////////////////////////
void GrContext::TextBlobCacheOverBudgetCB(void* data) {
SkASSERT(data);
// TextBlobs are drawn at the SkGpuDevice level, therefore they cannot rely on
// GrRenderTargetContext to perform a necessary flush. The solution is to move drawText calls
// to below the GrContext level, but this is not trivial because they call drawPath on
// SkGpuDevice.
GrContext* context = reinterpret_cast<GrContext*>(data);
context->flush();
}
////////////////////////////////////////////////////////////////////////////////
void GrContext::flush() {
ASSERT_SINGLE_OWNER
RETURN_IF_ABANDONED
fDrawingManager->flush(nullptr);
}
GrSemaphoresSubmitted GrContext::flushAndSignalSemaphores(int numSemaphores,
GrBackendSemaphore signalSemaphores[]) {
ASSERT_SINGLE_OWNER
if (fDrawingManager->wasAbandoned()) { return GrSemaphoresSubmitted::kNo; }
return fDrawingManager->flush(nullptr, numSemaphores, signalSemaphores);
}
void GrContextPriv::flush(GrSurfaceProxy* proxy) {
ASSERT_SINGLE_OWNER_PRIV
RETURN_IF_ABANDONED_PRIV
ASSERT_OWNED_PROXY_PRIV(proxy);
fContext->fDrawingManager->flush(proxy);
}
bool sw_convert_to_premul(GrPixelConfig srcConfig, int width, int height, size_t inRowBytes,
const void* inPixels, size_t outRowBytes, void* outPixels) {
SkColorType colorType;
if (!GrPixelConfigToColorType(srcConfig, &colorType) ||
4 != SkColorTypeBytesPerPixel(colorType))
{
return false;
}
for (int y = 0; y < height; y++) {
SkOpts::RGBA_to_rgbA((uint32_t*) outPixels, inPixels, width);
outPixels = SkTAddOffset<void>(outPixels, outRowBytes);
inPixels = SkTAddOffset<const void>(inPixels, inRowBytes);
}
return true;
}
static bool valid_premul_config(GrPixelConfig config) {
return GrPixelConfigIs8888Unorm(config) || kRGBA_half_GrPixelConfig == config;
}
static bool valid_pixel_conversion(GrPixelConfig srcConfig, GrPixelConfig dstConfig,
bool premulConversion) {
// We don't allow conversion between integer configs and float/fixed configs.
if (GrPixelConfigIsSint(srcConfig) != GrPixelConfigIsSint(dstConfig)) {
return false;
}
// We only allow premul <-> unpremul conversions for some formats
if (premulConversion && (!valid_premul_config(srcConfig) || !valid_premul_config(dstConfig))) {
return false;
}
return true;
}
static bool pm_upm_must_round_trip(GrPixelConfig config, SkColorSpace* colorSpace) {
return !colorSpace &&
(kRGBA_8888_GrPixelConfig == config || kBGRA_8888_GrPixelConfig == config);
}
bool GrContextPriv::writeSurfacePixels(GrSurfaceContext* dst,
int left, int top, int width, int height,
GrPixelConfig srcConfig, SkColorSpace* srcColorSpace,
const void* buffer, size_t rowBytes,
uint32_t pixelOpsFlags) {
// TODO: Color space conversion
ASSERT_SINGLE_OWNER_PRIV
RETURN_FALSE_IF_ABANDONED_PRIV
SkASSERT(dst);
ASSERT_OWNED_PROXY_PRIV(dst->asSurfaceProxy());
GR_CREATE_TRACE_MARKER_CONTEXT("GrContextPriv", "writeSurfacePixels", fContext);
if (!dst->asSurfaceProxy()->instantiate(this->resourceProvider())) {
return false;
}
GrSurfaceProxy* dstProxy = dst->asSurfaceProxy();
GrSurface* dstSurface = dstProxy->priv().peekSurface();
// The src is unpremul but the dst is premul -> premul the src before or as part of the write
const bool premul = SkToBool(kUnpremul_PixelOpsFlag & pixelOpsFlags);
if (!valid_pixel_conversion(srcConfig, dstProxy->config(), premul)) {
return false;
}
// We need to guarantee round-trip conversion if we are reading and writing 8888 non-sRGB data,
// without any color spaces attached, and the caller wants us to premul.
bool useConfigConversionEffect =
premul && pm_upm_must_round_trip(srcConfig, srcColorSpace) &&
pm_upm_must_round_trip(dstProxy->config(), dst->colorSpaceInfo().colorSpace());
// Are we going to try to premul as part of a draw? For the non-legacy case, we always allow
// this. GrConfigConversionEffect fails on some GPUs, so only allow this if it works perfectly.
bool premulOnGpu = premul &&
(!useConfigConversionEffect || fContext->validPMUPMConversionExists());
// Trim the params here so that if we wind up making a temporary surface it can be as small as
// necessary and because GrGpu::getWritePixelsInfo requires it.
if (!GrSurfacePriv::AdjustWritePixelParams(dstSurface->width(), dstSurface->height(),
GrBytesPerPixel(srcConfig), &left, &top, &width,
&height, &buffer, &rowBytes)) {
return false;
}
GrGpu::DrawPreference drawPreference = premulOnGpu ? GrGpu::kCallerPrefersDraw_DrawPreference
: GrGpu::kNoDraw_DrawPreference;
GrGpu::WritePixelTempDrawInfo tempDrawInfo;
if (!fContext->fGpu->getWritePixelsInfo(dstSurface, dstProxy->origin(), width, height,
srcConfig, &drawPreference, &tempDrawInfo)) {
return false;
}
if (!(kDontFlush_PixelOpsFlag & pixelOpsFlags) && dstSurface->surfacePriv().hasPendingIO()) {
this->flush(nullptr); // MDB TODO: tighten this
}
sk_sp<GrTextureProxy> tempProxy;
if (GrGpu::kNoDraw_DrawPreference != drawPreference) {
tempProxy = this->proxyProvider()->createProxy(tempDrawInfo.fTempSurfaceDesc,
SkBackingFit::kApprox,
SkBudgeted::kYes);
if (!tempProxy && GrGpu::kRequireDraw_DrawPreference == drawPreference) {
return false;
}
}
// temp buffer for doing sw premul conversion, if needed.
SkAutoSTMalloc<128 * 128, uint32_t> tmpPixels(0);
// We need to do sw premul if we were unable to create a RT for drawing, or if we can't do the
// premul on the GPU
if (premul && (!tempProxy || !premulOnGpu)) {
size_t tmpRowBytes = 4 * width;
tmpPixels.reset(width * height);
if (!sw_convert_to_premul(srcConfig, width, height, rowBytes, buffer, tmpRowBytes,
tmpPixels.get())) {
return false;
}
rowBytes = tmpRowBytes;
buffer = tmpPixels.get();
}
if (tempProxy) {
auto fp = GrSimpleTextureEffect::Make(tempProxy, SkMatrix::I());
if (premulOnGpu) {
fp = fContext->createUPMToPMEffect(std::move(fp), useConfigConversionEffect);
}
fp = GrFragmentProcessor::SwizzleOutput(std::move(fp), tempDrawInfo.fSwizzle);
if (!fp) {
return false;
}
if (!tempProxy->instantiate(this->resourceProvider())) {
return false;
}
GrTexture* texture = tempProxy->priv().peekTexture();
if (tempProxy->priv().hasPendingIO()) {
this->flush(tempProxy.get());
}
if (!fContext->fGpu->writePixels(texture, tempProxy->origin(), 0, 0, width, height,
tempDrawInfo.fWriteConfig, buffer, rowBytes)) {
return false;
}
tempProxy = nullptr;
SkMatrix matrix;
matrix.setTranslate(SkIntToScalar(left), SkIntToScalar(top));
GrRenderTargetContext* renderTargetContext = dst->asRenderTargetContext();
if (!renderTargetContext) {
return false;
}
GrPaint paint;
paint.addColorFragmentProcessor(std::move(fp));
paint.setPorterDuffXPFactory(SkBlendMode::kSrc);
paint.setAllowSRGBInputs(dst->colorSpaceInfo().isGammaCorrect() ||
GrPixelConfigIsSRGB(dst->colorSpaceInfo().config()));
SkRect rect = SkRect::MakeWH(SkIntToScalar(width), SkIntToScalar(height));
renderTargetContext->drawRect(GrNoClip(), std::move(paint), GrAA::kNo, matrix, rect,
nullptr);
if (kFlushWrites_PixelOp & pixelOpsFlags) {
this->flushSurfaceWrites(renderTargetContext->asRenderTargetProxy());
}
} else {
return fContext->fGpu->writePixels(dstSurface, dstProxy->origin(), left, top, width,
height, srcConfig, buffer, rowBytes);
}
return true;
}
bool GrContextPriv::readSurfacePixels(GrSurfaceContext* src,
int left, int top, int width, int height,
GrPixelConfig dstConfig, SkColorSpace* dstColorSpace,
void* buffer, size_t rowBytes, uint32_t flags) {
// TODO: Color space conversion
ASSERT_SINGLE_OWNER_PRIV
RETURN_FALSE_IF_ABANDONED_PRIV
SkASSERT(src);
ASSERT_OWNED_PROXY_PRIV(src->asSurfaceProxy());
GR_CREATE_TRACE_MARKER_CONTEXT("GrContextPriv", "readSurfacePixels", fContext);
// MDB TODO: delay this instantiation until later in the method
if (!src->asSurfaceProxy()->instantiate(this->resourceProvider())) {
return false;
}
GrSurfaceProxy* srcProxy = src->asSurfaceProxy();
GrSurface* srcSurface = srcProxy->priv().peekSurface();
// The src is premul but the dst is unpremul -> unpremul the src after or as part of the read
bool unpremul = SkToBool(kUnpremul_PixelOpsFlag & flags);
if (!valid_pixel_conversion(srcProxy->config(), dstConfig, unpremul)) {
return false;
}
// We need to guarantee round-trip conversion if we are reading and writing 8888 non-sRGB data,
// without any color spaces attached, and the caller wants us to unpremul.
bool useConfigConversionEffect =
unpremul &&
pm_upm_must_round_trip(srcProxy->config(), src->colorSpaceInfo().colorSpace()) &&
pm_upm_must_round_trip(dstConfig, dstColorSpace);
// Are we going to try to unpremul as part of a draw? For the non-legacy case, we always allow
// this. GrConfigConversionEffect fails on some GPUs, so only allow this if it works perfectly.
bool unpremulOnGpu = unpremul &&
(!useConfigConversionEffect || fContext->validPMUPMConversionExists());
// Adjust the params so that if we wind up using an intermediate surface we've already done
// all the trimming and the temporary can be the min size required.
if (!GrSurfacePriv::AdjustReadPixelParams(srcSurface->width(), srcSurface->height(),
GrBytesPerPixel(dstConfig), &left,
&top, &width, &height, &buffer, &rowBytes)) {
return false;
}
GrGpu::DrawPreference drawPreference = unpremulOnGpu ? GrGpu::kCallerPrefersDraw_DrawPreference
: GrGpu::kNoDraw_DrawPreference;
GrGpu::ReadPixelTempDrawInfo tempDrawInfo;
if (!fContext->fGpu->getReadPixelsInfo(srcSurface, srcProxy->origin(), width, height, rowBytes,
dstConfig, &drawPreference, &tempDrawInfo)) {
return false;
}
if (!(kDontFlush_PixelOpsFlag & flags) && srcSurface->surfacePriv().hasPendingWrite()) {
this->flush(nullptr); // MDB TODO: tighten this
}
sk_sp<GrSurfaceProxy> proxyToRead = src->asSurfaceProxyRef();
bool didTempDraw = false;
if (GrGpu::kNoDraw_DrawPreference != drawPreference) {
if (SkBackingFit::kExact == tempDrawInfo.fTempSurfaceFit) {
// We only respect this when the entire src is being read. Otherwise we can trigger too
// many odd ball texture sizes and trash the cache.
if (width != srcSurface->width() || height != srcSurface->height()) {
tempDrawInfo.fTempSurfaceFit= SkBackingFit::kApprox;
}
}
// TODO: Need to decide the semantics of this function for color spaces. Do we support
// conversion to a passed-in color space? For now, specifying nullptr means that this
// path will do no conversion, so it will match the behavior of the non-draw path.
sk_sp<GrRenderTargetContext> tempRTC = fContext->makeDeferredRenderTargetContext(
tempDrawInfo.fTempSurfaceFit,
tempDrawInfo.fTempSurfaceDesc.fWidth,
tempDrawInfo.fTempSurfaceDesc.fHeight,
tempDrawInfo.fTempSurfaceDesc.fConfig,
nullptr,
tempDrawInfo.fTempSurfaceDesc.fSampleCnt,
GrMipMapped::kNo,
tempDrawInfo.fTempSurfaceDesc.fOrigin);
if (tempRTC) {
// Adding discard to appease vulkan validation warning about loading uninitialized data
// on draw
tempRTC->discard();
SkMatrix textureMatrix = SkMatrix::MakeTrans(SkIntToScalar(left), SkIntToScalar(top));
sk_sp<GrTextureProxy> proxy = src->asTextureProxyRef();
auto fp = GrSimpleTextureEffect::Make(std::move(proxy), textureMatrix);
if (unpremulOnGpu) {
fp = fContext->createPMToUPMEffect(std::move(fp), useConfigConversionEffect);
// We no longer need to do this on CPU after the read back.
unpremul = false;
}
fp = GrFragmentProcessor::SwizzleOutput(std::move(fp), tempDrawInfo.fSwizzle);
if (!fp) {
return false;
}
GrPaint paint;
paint.addColorFragmentProcessor(std::move(fp));
paint.setPorterDuffXPFactory(SkBlendMode::kSrc);
paint.setAllowSRGBInputs(true);
SkRect rect = SkRect::MakeWH(SkIntToScalar(width), SkIntToScalar(height));
tempRTC->drawRect(GrNoClip(), std::move(paint), GrAA::kNo, SkMatrix::I(), rect,
nullptr);
proxyToRead = tempRTC->asTextureProxyRef();
left = 0;
top = 0;
didTempDraw = true;
}
}
if (!proxyToRead) {
return false;
}
if (GrGpu::kRequireDraw_DrawPreference == drawPreference && !didTempDraw) {
return false;
}
GrPixelConfig configToRead = dstConfig;
if (didTempDraw) {
this->flushSurfaceWrites(proxyToRead.get());
configToRead = tempDrawInfo.fReadConfig;
}
if (!proxyToRead->instantiate(this->resourceProvider())) {
return false;
}
GrSurface* surfaceToRead = proxyToRead->priv().peekSurface();
if (!fContext->fGpu->readPixels(surfaceToRead, proxyToRead->origin(),
left, top, width, height, configToRead, buffer, rowBytes)) {
return false;
}
// Perform umpremul conversion if we weren't able to perform it as a draw.
if (unpremul) {
SkColorType colorType;
if (!GrPixelConfigToColorType(dstConfig, &colorType) ||
4 != SkColorTypeBytesPerPixel(colorType))
{
return false;
}
for (int y = 0; y < height; y++) {
SkUnpremultiplyRow<false>((uint32_t*) buffer, (const uint32_t*) buffer, width);
buffer = SkTAddOffset<void>(buffer, rowBytes);
}
}
return true;
}
void GrContextPriv::prepareSurfaceForExternalIO(GrSurfaceProxy* proxy) {
ASSERT_SINGLE_OWNER_PRIV
RETURN_IF_ABANDONED_PRIV
SkASSERT(proxy);
ASSERT_OWNED_PROXY_PRIV(proxy);
fContext->fDrawingManager->prepareSurfaceForExternalIO(proxy, 0, nullptr);
}
void GrContextPriv::flushSurfaceWrites(GrSurfaceProxy* proxy) {
ASSERT_SINGLE_OWNER_PRIV
RETURN_IF_ABANDONED_PRIV
SkASSERT(proxy);
ASSERT_OWNED_PROXY_PRIV(proxy);
if (proxy->priv().hasPendingWrite()) {
this->flush(proxy);
}
}
void GrContextPriv::flushSurfaceIO(GrSurfaceProxy* proxy) {
ASSERT_SINGLE_OWNER_PRIV
RETURN_IF_ABANDONED_PRIV
SkASSERT(proxy);
ASSERT_OWNED_PROXY_PRIV(proxy);
if (proxy->priv().hasPendingIO()) {
this->flush(proxy);
}
}
////////////////////////////////////////////////////////////////////////////////
sk_sp<GrSurfaceContext> GrContextPriv::makeWrappedSurfaceContext(sk_sp<GrSurfaceProxy> proxy,
sk_sp<SkColorSpace> colorSpace,
const SkSurfaceProps* props) {
ASSERT_SINGLE_OWNER_PRIV
if (proxy->asRenderTargetProxy()) {
return this->drawingManager()->makeRenderTargetContext(std::move(proxy),
std::move(colorSpace), props);
} else {
SkASSERT(proxy->asTextureProxy());
SkASSERT(!props);
return this->drawingManager()->makeTextureContext(std::move(proxy), std::move(colorSpace));
}
}
sk_sp<GrSurfaceContext> GrContextPriv::makeDeferredSurfaceContext(const GrSurfaceDesc& dstDesc,
GrMipMapped mipMapped,
SkBackingFit fit,
SkBudgeted isDstBudgeted) {
sk_sp<GrTextureProxy> proxy;
if (GrMipMapped::kNo == mipMapped) {
proxy = this->proxyProvider()->createProxy(dstDesc, fit, isDstBudgeted);
} else {
SkASSERT(SkBackingFit::kExact == fit);
proxy = this->proxyProvider()->createMipMapProxy(dstDesc, isDstBudgeted);
}
if (!proxy) {
return nullptr;
}
sk_sp<GrSurfaceContext> sContext = this->makeWrappedSurfaceContext(std::move(proxy));
if (sContext && sContext->asRenderTargetContext()) {
sContext->asRenderTargetContext()->discard();
}
return sContext;
}
sk_sp<GrTextureContext> GrContextPriv::makeBackendTextureContext(const GrBackendTexture& tex,
GrSurfaceOrigin origin,
sk_sp<SkColorSpace> colorSpace) {
ASSERT_SINGLE_OWNER_PRIV
sk_sp<GrSurfaceProxy> proxy = this->proxyProvider()->createWrappedTextureProxy(tex, origin);
if (!proxy) {
return nullptr;
}
return this->drawingManager()->makeTextureContext(std::move(proxy), std::move(colorSpace));
}
sk_sp<GrRenderTargetContext> GrContextPriv::makeBackendTextureRenderTargetContext(
const GrBackendTexture& tex,
GrSurfaceOrigin origin,
int sampleCnt,
sk_sp<SkColorSpace> colorSpace,
const SkSurfaceProps* props) {
ASSERT_SINGLE_OWNER_PRIV
SkASSERT(sampleCnt > 0);
sk_sp<GrTextureProxy> proxy(this->proxyProvider()->createWrappedTextureProxy(tex, origin,
sampleCnt));
if (!proxy) {
return nullptr;
}
return this->drawingManager()->makeRenderTargetContext(std::move(proxy),
std::move(colorSpace), props);
}
sk_sp<GrRenderTargetContext> GrContextPriv::makeBackendRenderTargetRenderTargetContext(
const GrBackendRenderTarget& backendRT,
GrSurfaceOrigin origin,
sk_sp<SkColorSpace> colorSpace,
const SkSurfaceProps* surfaceProps) {
ASSERT_SINGLE_OWNER_PRIV
sk_sp<GrSurfaceProxy> proxy = this->proxyProvider()->createWrappedRenderTargetProxy(backendRT,
origin);
if (!proxy) {
return nullptr;
}
return this->drawingManager()->makeRenderTargetContext(std::move(proxy),
std::move(colorSpace),
surfaceProps);
}
sk_sp<GrRenderTargetContext> GrContextPriv::makeBackendTextureAsRenderTargetRenderTargetContext(
const GrBackendTexture& tex,
GrSurfaceOrigin origin,
int sampleCnt,
sk_sp<SkColorSpace> colorSpace,
const SkSurfaceProps* props) {
ASSERT_SINGLE_OWNER_PRIV
SkASSERT(sampleCnt > 0);
sk_sp<GrSurfaceProxy> proxy(this->proxyProvider()->createWrappedRenderTargetProxy(tex, origin,
sampleCnt));
if (!proxy) {
return nullptr;
}
return this->drawingManager()->makeRenderTargetContext(std::move(proxy),
std::move(colorSpace),
props);
}
void GrContextPriv::addOnFlushCallbackObject(GrOnFlushCallbackObject* onFlushCBObject) {
fContext->fDrawingManager->addOnFlushCallbackObject(onFlushCBObject);
}
void GrContextPriv::moveOpListsToDDL(SkDeferredDisplayList* ddl) {
fContext->fDrawingManager->moveOpListsToDDL(ddl);
}
void GrContextPriv::copyOpListsFromDDL(const SkDeferredDisplayList* ddl,
GrRenderTargetProxy* newDest) {
fContext->fDrawingManager->copyOpListsFromDDL(ddl, newDest);
}
static inline GrPixelConfig GrPixelConfigFallback(GrPixelConfig config) {
switch (config) {
case kAlpha_8_GrPixelConfig:
case kRGB_565_GrPixelConfig:
case kRGBA_4444_GrPixelConfig:
case kBGRA_8888_GrPixelConfig:
return kRGBA_8888_GrPixelConfig;
case kSBGRA_8888_GrPixelConfig:
return kSRGBA_8888_GrPixelConfig;
case kAlpha_half_GrPixelConfig:
return kRGBA_half_GrPixelConfig;
default:
return kUnknown_GrPixelConfig;
}
}
sk_sp<GrRenderTargetContext> GrContext::makeDeferredRenderTargetContextWithFallback(
SkBackingFit fit,
int width, int height,
GrPixelConfig config,
sk_sp<SkColorSpace> colorSpace,
int sampleCnt,
GrMipMapped mipMapped,
GrSurfaceOrigin origin,
const SkSurfaceProps* surfaceProps,
SkBudgeted budgeted) {
SkASSERT(sampleCnt > 0);
if (!this->caps()->isConfigRenderable(config, sampleCnt > 1)) {
config = GrPixelConfigFallback(config);
}
return this->makeDeferredRenderTargetContext(fit, width, height, config, std::move(colorSpace),
sampleCnt, mipMapped, origin, surfaceProps,
budgeted);
}
sk_sp<GrRenderTargetContext> GrContext::makeDeferredRenderTargetContext(
SkBackingFit fit,
int width, int height,
GrPixelConfig config,
sk_sp<SkColorSpace> colorSpace,
int sampleCnt,
GrMipMapped mipMapped,
GrSurfaceOrigin origin,
const SkSurfaceProps* surfaceProps,
SkBudgeted budgeted) {
SkASSERT(sampleCnt > 0);
if (this->abandoned()) {
return nullptr;
}
GrSurfaceDesc desc;
desc.fFlags = kRenderTarget_GrSurfaceFlag;
desc.fOrigin = origin;
desc.fWidth = width;
desc.fHeight = height;
desc.fConfig = config;
desc.fSampleCnt = sampleCnt;
sk_sp<GrTextureProxy> rtp;
if (GrMipMapped::kNo == mipMapped) {
rtp = fProxyProvider->createProxy(desc, fit, budgeted);
} else {
rtp = fProxyProvider->createMipMapProxy(desc, budgeted);
}
if (!rtp) {
return nullptr;
}
sk_sp<GrRenderTargetContext> renderTargetContext(
fDrawingManager->makeRenderTargetContext(std::move(rtp),
std::move(colorSpace),
surfaceProps));
if (!renderTargetContext) {
return nullptr;
}
renderTargetContext->discard();
return renderTargetContext;
}
bool GrContext::abandoned() const {
ASSERT_SINGLE_OWNER
return fDrawingManager->wasAbandoned();
}
std::unique_ptr<GrFragmentProcessor> GrContext::createPMToUPMEffect(
std::unique_ptr<GrFragmentProcessor> fp, bool useConfigConversionEffect) {
ASSERT_SINGLE_OWNER
// We have specialized effects that guarantee round-trip conversion for some formats
if (useConfigConversionEffect) {
// We should have already called this->validPMUPMConversionExists() in this case
SkASSERT(fDidTestPMConversions);
// ...and it should have succeeded
SkASSERT(this->validPMUPMConversionExists());
return GrConfigConversionEffect::Make(std::move(fp), PMConversion::kToUnpremul);
} else {
// For everything else (sRGB, half-float, etc...), it doesn't make sense to try and
// explicitly round the results. Just do the obvious, naive thing in the shader.
return GrFragmentProcessor::UnpremulOutput(std::move(fp));
}
}
std::unique_ptr<GrFragmentProcessor> GrContext::createUPMToPMEffect(
std::unique_ptr<GrFragmentProcessor> fp, bool useConfigConversionEffect) {
ASSERT_SINGLE_OWNER
// We have specialized effects that guarantee round-trip conversion for these formats
if (useConfigConversionEffect) {
// We should have already called this->validPMUPMConversionExists() in this case
SkASSERT(fDidTestPMConversions);
// ...and it should have succeeded
SkASSERT(this->validPMUPMConversionExists());
return GrConfigConversionEffect::Make(std::move(fp), PMConversion::kToPremul);
} else {
// For everything else (sRGB, half-float, etc...), it doesn't make sense to try and
// explicitly round the results. Just do the obvious, naive thing in the shader.
return GrFragmentProcessor::PremulOutput(std::move(fp));
}
}
bool GrContext::validPMUPMConversionExists() {
ASSERT_SINGLE_OWNER
if (!fDidTestPMConversions) {
fPMUPMConversionsRoundTrip = GrConfigConversionEffect::TestForPreservingPMConversions(this);
fDidTestPMConversions = true;
}
// The PM<->UPM tests fail or succeed together so we only need to check one.
return fPMUPMConversionsRoundTrip;
}
//////////////////////////////////////////////////////////////////////////////
void GrContext::getResourceCacheLimits(int* maxResources, size_t* maxResourceBytes) const {
ASSERT_SINGLE_OWNER
if (maxResources) {
*maxResources = fResourceCache->getMaxResourceCount();
}
if (maxResourceBytes) {
*maxResourceBytes = fResourceCache->getMaxResourceBytes();
}
}
void GrContext::setResourceCacheLimits(int maxResources, size_t maxResourceBytes) {
ASSERT_SINGLE_OWNER
fResourceCache->setLimits(maxResources, maxResourceBytes);
}
//////////////////////////////////////////////////////////////////////////////
void GrContext::dumpMemoryStatistics(SkTraceMemoryDump* traceMemoryDump) const {
ASSERT_SINGLE_OWNER
fResourceCache->dumpMemoryStatistics(traceMemoryDump);
}
//////////////////////////////////////////////////////////////////////////////
SkString GrContext::dump() const {
SkDynamicMemoryWStream stream;
SkJSONWriter writer(&stream, SkJSONWriter::Mode::kPretty);
writer.beginObject();
static const char* kBackendStr[] = {
"Metal",
"OpenGL",
"Vulkan",
"Mock",
};
GR_STATIC_ASSERT(0 == kMetal_GrBackend);
GR_STATIC_ASSERT(1 == kOpenGL_GrBackend);
GR_STATIC_ASSERT(2 == kVulkan_GrBackend);
GR_STATIC_ASSERT(3 == kMock_GrBackend);
writer.appendString("backend", kBackendStr[fBackend]);
writer.appendName("caps");
fCaps->dumpJSON(&writer);
writer.appendName("gpu");
fGpu->dumpJSON(&writer);
// Flush JSON to the memory stream
writer.endObject();
writer.flush();
// Null terminate the JSON data in the memory stream
stream.write8(0);
// Allocate a string big enough to hold all the data, then copy out of the stream
SkString result(stream.bytesWritten());
stream.copyToAndReset(result.writable_str());
return result;
}