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/*
* Copyright 2010 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#include "GrGpu.h"
#include "GrBackendSemaphore.h"
#include "GrBackendSurface.h"
#include "GrBuffer.h"
#include "GrCaps.h"
#include "GrContext.h"
#include "GrContextPriv.h"
#include "GrGpuResourcePriv.h"
#include "GrMesh.h"
#include "GrPathRendering.h"
#include "GrPipeline.h"
#include "GrRenderTargetPriv.h"
#include "GrResourceCache.h"
#include "GrResourceProvider.h"
#include "GrSemaphore.h"
#include "GrStencilAttachment.h"
#include "GrStencilSettings.h"
#include "GrSurfacePriv.h"
#include "GrTexturePriv.h"
#include "GrTextureProxyPriv.h"
#include "GrTracing.h"
#include "SkJSONWriter.h"
#include "SkMathPriv.h"
////////////////////////////////////////////////////////////////////////////////
GrGpu::GrGpu(GrContext* context)
: fResetTimestamp(kExpiredTimestamp+1)
, fResetBits(kAll_GrBackendState)
, fContext(context) {
}
GrGpu::~GrGpu() {}
void GrGpu::disconnect(DisconnectType) {}
////////////////////////////////////////////////////////////////////////////////
bool GrGpu::IsACopyNeededForRepeatWrapMode(const GrCaps* caps, GrTextureProxy* texProxy,
int width, int height,
GrSamplerState::Filter filter,
GrTextureProducer::CopyParams* copyParams,
SkScalar scaleAdjust[2]) {
if (!caps->npotTextureTileSupport() &&
(!SkIsPow2(width) || !SkIsPow2(height))) {
SkASSERT(scaleAdjust);
copyParams->fWidth = GrNextPow2(width);
copyParams->fHeight = GrNextPow2(height);
SkASSERT(scaleAdjust);
scaleAdjust[0] = ((SkScalar)copyParams->fWidth) / width;
scaleAdjust[1] = ((SkScalar)copyParams->fHeight) / height;
switch (filter) {
case GrSamplerState::Filter::kNearest:
copyParams->fFilter = GrSamplerState::Filter::kNearest;
break;
case GrSamplerState::Filter::kBilerp:
case GrSamplerState::Filter::kMipMap:
// We are only ever scaling up so no reason to ever indicate kMipMap.
copyParams->fFilter = GrSamplerState::Filter::kBilerp;
break;
}
return true;
}
if (texProxy) {
// If the texture format itself doesn't support repeat wrap mode or mipmapping (and
// those capabilities are required) force a copy.
if (texProxy->texPriv().isClampOnly()) {
copyParams->fFilter = GrSamplerState::Filter::kNearest;
copyParams->fWidth = texProxy->width();
copyParams->fHeight = texProxy->height();
return true;
}
}
return false;
}
bool GrGpu::IsACopyNeededForMips(const GrCaps* caps, const GrTextureProxy* texProxy,
GrSamplerState::Filter filter,
GrTextureProducer::CopyParams* copyParams) {
SkASSERT(texProxy);
bool willNeedMips = GrSamplerState::Filter::kMipMap == filter && caps->mipMapSupport();
// If the texture format itself doesn't support mipmapping (and those capabilities are required)
// force a copy.
if (willNeedMips && texProxy->mipMapped() == GrMipMapped::kNo) {
copyParams->fFilter = GrSamplerState::Filter::kNearest;
copyParams->fWidth = texProxy->width();
copyParams->fHeight = texProxy->height();
return true;
}
return false;
}
sk_sp<GrTexture> GrGpu::createTexture(const GrSurfaceDesc& origDesc, SkBudgeted budgeted,
const GrMipLevel texels[], int mipLevelCount) {
GR_CREATE_TRACE_MARKER_CONTEXT("GrGpu", "createTexture", fContext);
GrSurfaceDesc desc = origDesc;
GrMipMapped mipMapped = mipLevelCount > 1 ? GrMipMapped::kYes : GrMipMapped::kNo;
if (!this->caps()->validateSurfaceDesc(desc, mipMapped)) {
return nullptr;
}
bool isRT = desc.fFlags & kRenderTarget_GrSurfaceFlag;
if (isRT) {
desc.fSampleCnt = this->caps()->getRenderTargetSampleCount(desc.fSampleCnt, desc.fConfig);
}
// Attempt to catch un- or wrongly initialized sample counts.
SkASSERT(desc.fSampleCnt > 0 && desc.fSampleCnt <= 64);
if (mipLevelCount && (desc.fFlags & kPerformInitialClear_GrSurfaceFlag)) {
return nullptr;
}
this->handleDirtyContext();
sk_sp<GrTexture> tex = this->onCreateTexture(desc, budgeted, texels, mipLevelCount);
if (tex) {
if (!this->caps()->reuseScratchTextures() && !isRT) {
tex->resourcePriv().removeScratchKey();
}
fStats.incTextureCreates();
if (mipLevelCount) {
if (texels[0].fPixels) {
fStats.incTextureUploads();
}
}
}
return tex;
}
sk_sp<GrTexture> GrGpu::createTexture(const GrSurfaceDesc& desc, SkBudgeted budgeted) {
return this->createTexture(desc, budgeted, nullptr, 0);
}
sk_sp<GrTexture> GrGpu::wrapBackendTexture(const GrBackendTexture& backendTex,
GrWrapOwnership ownership) {
this->handleDirtyContext();
if (!this->caps()->isConfigTexturable(backendTex.config())) {
return nullptr;
}
if (backendTex.width() > this->caps()->maxTextureSize() ||
backendTex.height() > this->caps()->maxTextureSize()) {
return nullptr;
}
return this->onWrapBackendTexture(backendTex, ownership);
}
sk_sp<GrTexture> GrGpu::wrapRenderableBackendTexture(const GrBackendTexture& backendTex,
int sampleCnt, GrWrapOwnership ownership) {
this->handleDirtyContext();
if (sampleCnt < 1) {
return nullptr;
}
if (!this->caps()->isConfigTexturable(backendTex.config()) ||
!this->caps()->getRenderTargetSampleCount(sampleCnt, backendTex.config())) {
return nullptr;
}
if (backendTex.width() > this->caps()->maxRenderTargetSize() ||
backendTex.height() > this->caps()->maxRenderTargetSize()) {
return nullptr;
}
sk_sp<GrTexture> tex = this->onWrapRenderableBackendTexture(backendTex, sampleCnt, ownership);
SkASSERT(!tex || tex->asRenderTarget());
return tex;
}
sk_sp<GrRenderTarget> GrGpu::wrapBackendRenderTarget(const GrBackendRenderTarget& backendRT) {
if (0 == this->caps()->getRenderTargetSampleCount(backendRT.sampleCnt(), backendRT.config())) {
return nullptr;
}
this->handleDirtyContext();
return this->onWrapBackendRenderTarget(backendRT);
}
sk_sp<GrRenderTarget> GrGpu::wrapBackendTextureAsRenderTarget(const GrBackendTexture& tex,
int sampleCnt) {
if (0 == this->caps()->getRenderTargetSampleCount(sampleCnt, tex.config())) {
return nullptr;
}
int maxSize = this->caps()->maxTextureSize();
if (tex.width() > maxSize || tex.height() > maxSize) {
return nullptr;
}
this->handleDirtyContext();
return this->onWrapBackendTextureAsRenderTarget(tex, sampleCnt);
}
GrBuffer* GrGpu::createBuffer(size_t size, GrBufferType intendedType,
GrAccessPattern accessPattern, const void* data) {
this->handleDirtyContext();
GrBuffer* buffer = this->onCreateBuffer(size, intendedType, accessPattern, data);
if (!this->caps()->reuseScratchBuffers()) {
buffer->resourcePriv().removeScratchKey();
}
return buffer;
}
bool GrGpu::copySurface(GrSurface* dst, GrSurfaceOrigin dstOrigin,
GrSurface* src, GrSurfaceOrigin srcOrigin,
const SkIRect& srcRect, const SkIPoint& dstPoint,
bool canDiscardOutsideDstRect) {
GR_CREATE_TRACE_MARKER_CONTEXT("GrGpu", "copySurface", fContext);
SkASSERT(dst && src);
this->handleDirtyContext();
return this->onCopySurface(dst, dstOrigin, src, srcOrigin, srcRect, dstPoint,
canDiscardOutsideDstRect);
}
bool GrGpu::readPixels(GrSurface* surface, int left, int top, int width, int height,
GrColorType dstColorType, void* buffer, size_t rowBytes) {
SkASSERT(surface);
int bpp = GrColorTypeBytesPerPixel(dstColorType);
if (!GrSurfacePriv::AdjustReadPixelParams(surface->width(), surface->height(), bpp,
&left, &top, &width, &height,
&buffer,
&rowBytes)) {
return false;
}
this->handleDirtyContext();
return this->onReadPixels(surface, left, top, width, height, dstColorType, buffer, rowBytes);
}
bool GrGpu::writePixels(GrSurface* surface, int left, int top, int width, int height,
GrColorType srcColorType, const GrMipLevel texels[], int mipLevelCount) {
SkASSERT(surface);
if (1 == mipLevelCount) {
// We require that if we are not mipped, then the write region is contained in the surface
SkIRect subRect = SkIRect::MakeXYWH(left, top, width, height);
SkIRect bounds = SkIRect::MakeWH(surface->width(), surface->height());
if (!bounds.contains(subRect)) {
return false;
}
} else if (0 != left || 0 != top || width != surface->width() || height != surface->height()) {
// We require that if the texels are mipped, than the write region is the entire surface
return false;
}
for (int currentMipLevel = 0; currentMipLevel < mipLevelCount; currentMipLevel++) {
if (!texels[currentMipLevel].fPixels ) {
return false;
}
}
this->handleDirtyContext();
if (this->onWritePixels(surface, left, top, width, height, srcColorType, texels,
mipLevelCount)) {
SkIRect rect = SkIRect::MakeXYWH(left, top, width, height);
this->didWriteToSurface(surface, kTopLeft_GrSurfaceOrigin, &rect, mipLevelCount);
fStats.incTextureUploads();
return true;
}
return false;
}
bool GrGpu::transferPixels(GrTexture* texture, int left, int top, int width, int height,
GrColorType bufferColorType, GrBuffer* transferBuffer, size_t offset,
size_t rowBytes) {
SkASSERT(transferBuffer);
// We require that the write region is contained in the texture
SkIRect subRect = SkIRect::MakeXYWH(left, top, width, height);
SkIRect bounds = SkIRect::MakeWH(texture->width(), texture->height());
if (!bounds.contains(subRect)) {
return false;
}
this->handleDirtyContext();
if (this->onTransferPixels(texture, left, top, width, height, bufferColorType, transferBuffer,
offset, rowBytes)) {
SkIRect rect = SkIRect::MakeXYWH(left, top, width, height);
this->didWriteToSurface(texture, kTopLeft_GrSurfaceOrigin, &rect);
fStats.incTransfersToTexture();
return true;
}
return false;
}
void GrGpu::resolveRenderTarget(GrRenderTarget* target) {
SkASSERT(target);
this->handleDirtyContext();
this->onResolveRenderTarget(target);
}
void GrGpu::didWriteToSurface(GrSurface* surface, GrSurfaceOrigin origin, const SkIRect* bounds,
uint32_t mipLevels) const {
SkASSERT(surface);
// Mark any MIP chain and resolve buffer as dirty if and only if there is a non-empty bounds.
if (nullptr == bounds || !bounds->isEmpty()) {
if (GrRenderTarget* target = surface->asRenderTarget()) {
SkIRect flippedBounds;
if (kBottomLeft_GrSurfaceOrigin == origin && bounds) {
flippedBounds = {bounds->fLeft, surface->height() - bounds->fBottom,
bounds->fRight, surface->height() - bounds->fTop};
bounds = &flippedBounds;
}
target->flagAsNeedingResolve(bounds);
}
GrTexture* texture = surface->asTexture();
if (texture && 1 == mipLevels) {
texture->texturePriv().markMipMapsDirty();
}
}
}
GrSemaphoresSubmitted GrGpu::finishFlush(int numSemaphores,
GrBackendSemaphore backendSemaphores[]) {
GrResourceProvider* resourceProvider = fContext->contextPriv().resourceProvider();
if (this->caps()->fenceSyncSupport()) {
for (int i = 0; i < numSemaphores; ++i) {
sk_sp<GrSemaphore> semaphore;
if (backendSemaphores[i].isInitialized()) {
semaphore = resourceProvider->wrapBackendSemaphore(
backendSemaphores[i], GrResourceProvider::SemaphoreWrapType::kWillSignal,
kBorrow_GrWrapOwnership);
} else {
semaphore = resourceProvider->makeSemaphore(false);
}
this->insertSemaphore(semaphore, false);
if (!backendSemaphores[i].isInitialized()) {
semaphore->setBackendSemaphore(&backendSemaphores[i]);
}
}
}
this->onFinishFlush((numSemaphores > 0 && this->caps()->fenceSyncSupport()));
return this->caps()->fenceSyncSupport() ? GrSemaphoresSubmitted::kYes
: GrSemaphoresSubmitted::kNo;
}
void GrGpu::dumpJSON(SkJSONWriter* writer) const {
writer->beginObject();
// TODO: Is there anything useful in the base class to dump here?
this->onDumpJSON(writer);
writer->endObject();
}
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