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/*
* Copyright 2015 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#include "GrOpFlushState.h"
#include "GrDrawOpAtlas.h"
#include "GrGpu.h"
#include "GrResourceProvider.h"
#include "GrTexture.h"
template <typename T>
template <typename... Args>
T& GrOpFlushState::List<T>::append(SkArenaAlloc* arena, Args... args) {
SkASSERT(!fHead == !fTail);
auto* n = arena->make<Node>(std::forward<Args>(args)...);
if (!fTail) {
fHead = fTail = n;
} else {
fTail = fTail->fNext = n;
}
return fTail->fT;
}
template <typename T>
typename GrOpFlushState::List<T>::Iter& GrOpFlushState::List<T>::Iter::operator++() {
fCurr = fCurr->fNext;
return *this;
}
//////////////////////////////////////////////////////////////////////////////
GrOpFlushState::GrOpFlushState(GrGpu* gpu, GrResourceProvider* resourceProvider)
: fVertexPool(gpu), fIndexPool(gpu), fGpu(gpu), fResourceProvider(resourceProvider) {}
const GrCaps& GrOpFlushState::caps() const {
return *fGpu->caps();
}
GrGpuRTCommandBuffer* GrOpFlushState::rtCommandBuffer() {
return fCommandBuffer->asRTCommandBuffer();
}
void GrOpFlushState::executeDrawsAndUploadsForMeshDrawOp(uint32_t opID, const SkRect& opBounds) {
SkASSERT(this->rtCommandBuffer());
while (fCurrDraw != fDraws.end() && fCurrDraw->fOpID == opID) {
GrDeferredUploadToken drawToken = this->nextTokenToFlush();
while (fCurrUpload != fInlineUploads.end() &&
fCurrUpload->fUploadBeforeToken == drawToken) {
this->rtCommandBuffer()->inlineUpload(this, fCurrUpload->fUpload);
++fCurrUpload;
}
SkASSERT(fCurrDraw->fPipeline->proxy() == this->drawOpArgs().fProxy);
this->rtCommandBuffer()->draw(*fCurrDraw->fPipeline, *fCurrDraw->fGeometryProcessor,
fMeshes.begin() + fCurrMesh, nullptr, fCurrDraw->fMeshCnt,
opBounds);
fCurrMesh += fCurrDraw->fMeshCnt;
this->flushToken();
++fCurrDraw;
}
}
void GrOpFlushState::preExecuteDraws() {
fVertexPool.unmap();
fIndexPool.unmap();
for (auto& upload : fAsapUploads) {
this->doUpload(upload);
}
// Setup execution iterators.
fCurrDraw = fDraws.begin();
fCurrUpload = fInlineUploads.begin();
fCurrMesh = 0;
}
void GrOpFlushState::reset() {
SkASSERT(fCurrDraw == fDraws.end());
SkASSERT(fCurrUpload == fInlineUploads.end());
fVertexPool.reset();
fIndexPool.reset();
fArena.reset();
fAsapUploads.reset();
fInlineUploads.reset();
fDraws.reset();
fMeshes.reset();
fCurrMesh = 0;
fBaseDrawToken = GrDeferredUploadToken::AlreadyFlushedToken();
}
void GrOpFlushState::doUpload(GrDeferredTextureUploadFn& upload) {
GrDeferredTextureUploadWritePixelsFn wp = [this](GrTextureProxy* proxy, int left, int top,
int width, int height, GrPixelConfig config,
const void* buffer, size_t rowBytes) {
GrSurface* surface = proxy->priv().peekSurface();
GrGpu::DrawPreference drawPreference = GrGpu::kNoDraw_DrawPreference;
GrGpu::WritePixelTempDrawInfo tempInfo;
fGpu->getWritePixelsInfo(surface, proxy->origin(), width, height, proxy->config(),
&drawPreference, &tempInfo);
if (GrGpu::kNoDraw_DrawPreference == drawPreference) {
return this->fGpu->writePixels(surface, proxy->origin(), left, top, width, height,
config, buffer, rowBytes);
}
GrSurfaceDesc desc;
desc.fOrigin = proxy->origin();
desc.fWidth = width;
desc.fHeight = height;
desc.fConfig = proxy->config();
sk_sp<GrTexture> temp(this->fResourceProvider->createApproxTexture(
desc, GrResourceProvider::kNoPendingIO_Flag));
if (!temp) {
return false;
}
if (!fGpu->writePixels(temp.get(), proxy->origin(), 0, 0, width, height, desc.fConfig,
buffer, rowBytes)) {
return false;
}
return fGpu->copySurface(surface, proxy->origin(), temp.get(), proxy->origin(),
SkIRect::MakeWH(width, height), {left, top});
};
upload(wp);
}
GrDeferredUploadToken GrOpFlushState::addInlineUpload(GrDeferredTextureUploadFn&& upload) {
return fInlineUploads.append(&fArena, std::move(upload), this->nextDrawToken())
.fUploadBeforeToken;
}
GrDeferredUploadToken GrOpFlushState::addASAPUpload(GrDeferredTextureUploadFn&& upload) {
fAsapUploads.append(&fArena, std::move(upload));
return this->nextTokenToFlush();
}
void GrOpFlushState::draw(const GrGeometryProcessor* gp, const GrPipeline* pipeline,
const GrMesh& mesh) {
SkASSERT(fOpArgs);
SkASSERT(fOpArgs->fOp);
fMeshes.push_back(mesh);
bool firstDraw = fDraws.begin() == fDraws.end();
if (!firstDraw) {
Draw& lastDraw = *fDraws.begin();
// If the last draw shares a geometry processor and pipeline and there are no intervening
// uploads, add this mesh to it.
if (lastDraw.fGeometryProcessor == gp && lastDraw.fPipeline == pipeline) {
if (fInlineUploads.begin() == fInlineUploads.end() ||
fInlineUploads.tail()->fUploadBeforeToken != this->nextDrawToken()) {
++lastDraw.fMeshCnt;
return;
}
}
}
auto& draw = fDraws.append(&fArena);
GrDeferredUploadToken token = this->issueDrawToken();
draw.fGeometryProcessor.reset(gp);
draw.fPipeline = pipeline;
draw.fMeshCnt = 1;
draw.fOpID = fOpArgs->fOp->uniqueID();
if (firstDraw) {
fBaseDrawToken = token;
}
}
void* GrOpFlushState::makeVertexSpace(size_t vertexSize, int vertexCount, const GrBuffer** buffer,
int* startVertex) {
return fVertexPool.makeSpace(vertexSize, vertexCount, buffer, startVertex);
}
uint16_t* GrOpFlushState::makeIndexSpace(int indexCount, const GrBuffer** buffer, int* startIndex) {
return reinterpret_cast<uint16_t*>(fIndexPool.makeSpace(indexCount, buffer, startIndex));
}
void* GrOpFlushState::makeVertexSpaceAtLeast(size_t vertexSize, int minVertexCount,
int fallbackVertexCount, const GrBuffer** buffer,
int* startVertex, int* actualVertexCount) {
return fVertexPool.makeSpaceAtLeast(vertexSize, minVertexCount, fallbackVertexCount, buffer,
startVertex, actualVertexCount);
}
uint16_t* GrOpFlushState::makeIndexSpaceAtLeast(int minIndexCount, int fallbackIndexCount,
const GrBuffer** buffer, int* startIndex,
int* actualIndexCount) {
return reinterpret_cast<uint16_t*>(fIndexPool.makeSpaceAtLeast(
minIndexCount, fallbackIndexCount, buffer, startIndex, actualIndexCount));
}
void GrOpFlushState::putBackIndices(int indexCount) {
fIndexPool.putBack(indexCount * sizeof(uint16_t));
}
void GrOpFlushState::putBackVertices(int vertices, size_t vertexStride) {
fVertexPool.putBack(vertices * vertexStride);
}
GrAppliedClip GrOpFlushState::detachAppliedClip() {
return fOpArgs->fAppliedClip ? std::move(*fOpArgs->fAppliedClip) : GrAppliedClip();
}
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