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      1 /*
      2  * Copyright 2015 Google Inc.
      3  *
      4  * Use of this source code is governed by a BSD-style license that can be
      5  * found in the LICENSE file.
      6  */
      7 
      8 #include "GrOpFlushState.h"
      9 
     10 #include "GrDrawOpAtlas.h"
     11 #include "GrGpu.h"
     12 #include "GrResourceProvider.h"
     13 #include "GrTexture.h"
     14 
     15 //////////////////////////////////////////////////////////////////////////////
     16 
     17 GrOpFlushState::GrOpFlushState(GrGpu* gpu,
     18                                GrResourceProvider* resourceProvider,
     19                                GrTokenTracker* tokenTracker)
     20         : fVertexPool(gpu)
     21         , fIndexPool(gpu)
     22         , fGpu(gpu)
     23         , fResourceProvider(resourceProvider)
     24         , fTokenTracker(tokenTracker) {
     25 }
     26 
     27 const GrCaps& GrOpFlushState::caps() const {
     28     return *fGpu->caps();
     29 }
     30 
     31 GrGpuRTCommandBuffer* GrOpFlushState::rtCommandBuffer() {
     32     return fCommandBuffer->asRTCommandBuffer();
     33 }
     34 
     35 void GrOpFlushState::executeDrawsAndUploadsForMeshDrawOp(uint32_t opID, const SkRect& opBounds) {
     36     SkASSERT(this->rtCommandBuffer());
     37     while (fCurrDraw != fDraws.end() && fCurrDraw->fOpID == opID) {
     38         GrDeferredUploadToken drawToken = fTokenTracker->nextTokenToFlush();
     39         while (fCurrUpload != fInlineUploads.end() &&
     40                fCurrUpload->fUploadBeforeToken == drawToken) {
     41             this->rtCommandBuffer()->inlineUpload(this, fCurrUpload->fUpload);
     42             ++fCurrUpload;
     43         }
     44         SkASSERT(fCurrDraw->fPipeline->proxy() == this->drawOpArgs().fProxy);
     45         this->rtCommandBuffer()->draw(*fCurrDraw->fPipeline, *fCurrDraw->fGeometryProcessor,
     46                                       fMeshes.begin() + fCurrMesh, nullptr, fCurrDraw->fMeshCnt,
     47                                       opBounds);
     48         fCurrMesh += fCurrDraw->fMeshCnt;
     49         fTokenTracker->flushToken();
     50         ++fCurrDraw;
     51     }
     52 }
     53 
     54 void GrOpFlushState::preExecuteDraws() {
     55     fVertexPool.unmap();
     56     fIndexPool.unmap();
     57     for (auto& upload : fASAPUploads) {
     58         this->doUpload(upload);
     59     }
     60     // Setup execution iterators.
     61     fCurrDraw = fDraws.begin();
     62     fCurrUpload = fInlineUploads.begin();
     63     fCurrMesh = 0;
     64 }
     65 
     66 void GrOpFlushState::reset() {
     67     SkASSERT(fCurrDraw == fDraws.end());
     68     SkASSERT(fCurrUpload == fInlineUploads.end());
     69     fVertexPool.reset();
     70     fIndexPool.reset();
     71     fArena.reset();
     72     fASAPUploads.reset();
     73     fInlineUploads.reset();
     74     fDraws.reset();
     75     fMeshes.reset();
     76     fCurrMesh = 0;
     77     fBaseDrawToken = GrDeferredUploadToken::AlreadyFlushedToken();
     78 }
     79 
     80 void GrOpFlushState::doUpload(GrDeferredTextureUploadFn& upload) {
     81     GrDeferredTextureUploadWritePixelsFn wp = [this](GrTextureProxy* dstProxy, int left, int top,
     82                                                      int width, int height, GrPixelConfig srcConfig,
     83                                                      const void* buffer, size_t rowBytes) {
     84         GrSurface* dstSurface = dstProxy->priv().peekSurface();
     85         GrGpu::DrawPreference drawPreference = GrGpu::kNoDraw_DrawPreference;
     86         GrGpu::WritePixelTempDrawInfo tempInfo;
     87         if (!fGpu->getWritePixelsInfo(dstSurface, dstProxy->origin(),
     88                                       width, height, srcConfig,
     89                                       &drawPreference, &tempInfo)) {
     90             return false;
     91         }
     92         if (GrGpu::kNoDraw_DrawPreference == drawPreference) {
     93             return this->fGpu->writePixels(dstSurface, dstProxy->origin(),
     94                                            left, top, width, height,
     95                                            srcConfig, buffer, rowBytes);
     96         }
     97         GrSurfaceDesc desc;
     98         desc.fOrigin = dstProxy->origin();
     99         desc.fWidth = width;
    100         desc.fHeight = height;
    101         desc.fConfig = dstProxy->config();
    102         sk_sp<GrTexture> temp(this->fResourceProvider->createApproxTexture(
    103                 desc, GrResourceProvider::kNoPendingIO_Flag));
    104         if (!temp) {
    105             return false;
    106         }
    107         if (!fGpu->writePixels(temp.get(), dstProxy->origin(), 0, 0, width, height, desc.fConfig,
    108                                buffer, rowBytes)) {
    109             return false;
    110         }
    111         return fGpu->copySurface(dstSurface, dstProxy->origin(), temp.get(), dstProxy->origin(),
    112                                  SkIRect::MakeWH(width, height), {left, top});
    113     };
    114     upload(wp);
    115 }
    116 
    117 GrDeferredUploadToken GrOpFlushState::addInlineUpload(GrDeferredTextureUploadFn&& upload) {
    118     return fInlineUploads.append(&fArena, std::move(upload), fTokenTracker->nextDrawToken())
    119             .fUploadBeforeToken;
    120 }
    121 
    122 GrDeferredUploadToken GrOpFlushState::addASAPUpload(GrDeferredTextureUploadFn&& upload) {
    123     fASAPUploads.append(&fArena, std::move(upload));
    124     return fTokenTracker->nextTokenToFlush();
    125 }
    126 
    127 void GrOpFlushState::draw(const GrGeometryProcessor* gp, const GrPipeline* pipeline,
    128                           const GrMesh& mesh) {
    129     SkASSERT(fOpArgs);
    130     SkASSERT(fOpArgs->fOp);
    131     fMeshes.push_back(mesh);
    132     bool firstDraw = fDraws.begin() == fDraws.end();
    133     if (!firstDraw) {
    134         Draw& lastDraw = *fDraws.begin();
    135         // If the last draw shares a geometry processor and pipeline and there are no intervening
    136         // uploads, add this mesh to it.
    137         if (lastDraw.fGeometryProcessor == gp && lastDraw.fPipeline == pipeline) {
    138             if (fInlineUploads.begin() == fInlineUploads.end() ||
    139                 fInlineUploads.tail()->fUploadBeforeToken != fTokenTracker->nextDrawToken()) {
    140                 ++lastDraw.fMeshCnt;
    141                 return;
    142             }
    143         }
    144     }
    145     auto& draw = fDraws.append(&fArena);
    146     GrDeferredUploadToken token = fTokenTracker->issueDrawToken();
    147 
    148     draw.fGeometryProcessor.reset(gp);
    149     draw.fPipeline = pipeline;
    150     draw.fMeshCnt = 1;
    151     draw.fOpID = fOpArgs->fOp->uniqueID();
    152     if (firstDraw) {
    153         fBaseDrawToken = token;
    154     }
    155 }
    156 
    157 void* GrOpFlushState::makeVertexSpace(size_t vertexSize, int vertexCount, const GrBuffer** buffer,
    158                                       int* startVertex) {
    159     return fVertexPool.makeSpace(vertexSize, vertexCount, buffer, startVertex);
    160 }
    161 
    162 uint16_t* GrOpFlushState::makeIndexSpace(int indexCount, const GrBuffer** buffer, int* startIndex) {
    163     return reinterpret_cast<uint16_t*>(fIndexPool.makeSpace(indexCount, buffer, startIndex));
    164 }
    165 
    166 void* GrOpFlushState::makeVertexSpaceAtLeast(size_t vertexSize, int minVertexCount,
    167                                              int fallbackVertexCount, const GrBuffer** buffer,
    168                                              int* startVertex, int* actualVertexCount) {
    169     return fVertexPool.makeSpaceAtLeast(vertexSize, minVertexCount, fallbackVertexCount, buffer,
    170                                         startVertex, actualVertexCount);
    171 }
    172 
    173 uint16_t* GrOpFlushState::makeIndexSpaceAtLeast(int minIndexCount, int fallbackIndexCount,
    174                                                 const GrBuffer** buffer, int* startIndex,
    175                                                 int* actualIndexCount) {
    176     return reinterpret_cast<uint16_t*>(fIndexPool.makeSpaceAtLeast(
    177             minIndexCount, fallbackIndexCount, buffer, startIndex, actualIndexCount));
    178 }
    179 
    180 void GrOpFlushState::putBackIndices(int indexCount) {
    181     fIndexPool.putBack(indexCount * sizeof(uint16_t));
    182 }
    183 
    184 void GrOpFlushState::putBackVertices(int vertices, size_t vertexStride) {
    185     fVertexPool.putBack(vertices * vertexStride);
    186 }
    187 
    188 GrAppliedClip GrOpFlushState::detachAppliedClip() {
    189     return fOpArgs->fAppliedClip ? std::move(*fOpArgs->fAppliedClip) : GrAppliedClip();
    190 }
    191