зеркало из https://github.com/mozilla/moz-skia.git
236 строки
7.8 KiB
C++
236 строки
7.8 KiB
C++
/*
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* Copyright 2014 Google Inc.
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*
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* Use of this source code is governed by a BSD-style license that can be
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* found in the LICENSE file.
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*/
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#include "Benchmark.h"
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#include "Resources.h"
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#include "SkCanvas.h"
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#include "SkData.h"
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#include "SkDecodingImageGenerator.h"
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#include "SkImageDecoder.h"
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#include "SkOSFile.h"
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#include "SkPixelRef.h"
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#ifndef SK_IGNORE_ETC1_SUPPORT
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#include "etc1.h"
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// This takes the etc1 data pointed to by orig, and copies it `factor` times in each
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// dimension. The return value is the new data or NULL on error.
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static etc1_byte* create_expanded_etc1_bitmap(const uint8_t* orig, int factor) {
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SkASSERT(NULL != orig);
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SkASSERT(factor > 1);
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const etc1_byte* origData = reinterpret_cast<const etc1_byte*>(orig);
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if (!etc1_pkm_is_valid(orig)) {
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return NULL;
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}
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etc1_uint32 origWidth = etc1_pkm_get_width(origData);
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etc1_uint32 origHeight = etc1_pkm_get_height(origData);
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// The width and height must be aligned along block boundaries
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static const etc1_uint32 kETC1BlockWidth = 4;
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static const etc1_uint32 kETC1BlockHeight = 4;
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if ((origWidth % kETC1BlockWidth) != 0 ||
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(origHeight % kETC1BlockHeight) != 0) {
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return NULL;
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}
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// The picture must be at least as large as a block.
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if (origWidth <= kETC1BlockWidth || origHeight <= kETC1BlockHeight) {
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return NULL;
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}
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etc1_uint32 newWidth = origWidth * factor;
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etc1_uint32 newHeight = origHeight * factor;
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etc1_uint32 newDataSz = etc1_get_encoded_data_size(newWidth, newHeight);
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etc1_byte* newData = reinterpret_cast<etc1_byte *>(
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sk_malloc_throw(newDataSz + ETC_PKM_HEADER_SIZE));
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etc1_pkm_format_header(newData, newWidth, newHeight);
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etc1_byte* copyInto = newData;
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copyInto += ETC_PKM_HEADER_SIZE;
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origData += ETC_PKM_HEADER_SIZE;
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etc1_uint32 origBlocksX = (origWidth >> 2);
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etc1_uint32 origBlocksY = (origHeight >> 2);
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etc1_uint32 newBlocksY = (newHeight >> 2);
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etc1_uint32 origRowSzInBytes = origBlocksX * ETC1_ENCODED_BLOCK_SIZE;
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for (etc1_uint32 j = 0; j < newBlocksY; ++j) {
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const etc1_byte* rowStart = origData + ((j % origBlocksY) * origRowSzInBytes);
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for(etc1_uint32 i = 0; i < newWidth; i += origWidth) {
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memcpy(copyInto, rowStart, origRowSzInBytes);
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copyInto += origRowSzInBytes;
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}
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}
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return newData;
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}
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// This is the base class for all of the benches in this file. In general
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// the ETC1 benches should all be working on the same data. Due to the
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// simplicity of the PKM file, that data is the 128x128 mandrill etc1
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// compressed texture repeated by some factor (currently 8 -> 1024x1024)
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class ETCBitmapBenchBase : public Benchmark {
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public:
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ETCBitmapBenchBase() : fPKMData(loadPKM()) {
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if (NULL == fPKMData) {
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SkDebugf("Could not load PKM data!");
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}
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}
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protected:
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SkAutoDataUnref fPKMData;
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private:
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SkData* loadPKM() {
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SkString pkmFilename = GetResourcePath("mandrill_128.pkm");
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// Expand the data
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SkAutoDataUnref fileData(SkData::NewFromFileName(pkmFilename.c_str()));
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if (NULL == fileData) {
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SkDebugf("Could not open the file. Did you forget to set the resourcePath?\n");
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return NULL;
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}
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const etc1_uint32 kExpansionFactor = 8;
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etc1_byte* expandedETC1 =
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create_expanded_etc1_bitmap(fileData->bytes(), kExpansionFactor);
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if (NULL == expandedETC1) {
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SkDebugf("Error expanding ETC1 data by factor of %d\n", kExpansionFactor);
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return NULL;
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}
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etc1_uint32 width = etc1_pkm_get_width(expandedETC1);
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etc1_uint32 height = etc1_pkm_get_width(expandedETC1);
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etc1_uint32 dataSz = ETC_PKM_HEADER_SIZE + etc1_get_encoded_data_size(width, height);
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return SkData::NewFromMalloc(expandedETC1, dataSz);
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}
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typedef Benchmark INHERITED;
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};
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// This is the rendering benchmark. Prior to rendering the data, create a
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// bitmap using the etc1 data.
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class ETCBitmapBench : public ETCBitmapBenchBase {
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public:
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ETCBitmapBench(bool decompress, Backend backend)
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: fDecompress(decompress), fBackend(backend) { }
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virtual bool isSuitableFor(Backend backend) SK_OVERRIDE {
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return backend == this->fBackend;
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}
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protected:
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virtual const char* onGetName() SK_OVERRIDE {
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if (kGPU_Backend == this->fBackend) {
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if (this->fDecompress) {
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return "etc1bitmap_render_gpu_decompressed";
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} else {
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return "etc1bitmap_render_gpu_compressed";
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}
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} else {
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SkASSERT(kRaster_Backend == this->fBackend);
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if (this->fDecompress) {
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return "etc1bitmap_render_raster_decompressed";
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} else {
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return "etc1bitmap_render_raster_compressed";
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}
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}
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}
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virtual void onPreDraw() SK_OVERRIDE {
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if (NULL == fPKMData) {
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SkDebugf("Failed to load PKM data!\n");
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return;
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}
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// Install pixel ref
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if (!SkInstallDiscardablePixelRef(
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SkDecodingImageGenerator::Create(
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fPKMData, SkDecodingImageGenerator::Options()), &(this->fBitmap))) {
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SkDebugf("Could not install discardable pixel ref.\n");
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return;
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}
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// Decompress it if necessary
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if (this->fDecompress) {
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this->fBitmap.lockPixels();
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}
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}
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virtual void onDraw(const int loops, SkCanvas* canvas) SK_OVERRIDE {
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for (int i = 0; i < loops; ++i) {
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canvas->drawBitmap(this->fBitmap, 0, 0, NULL);
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}
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}
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protected:
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SkBitmap fBitmap;
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bool decompress() const { return fDecompress; }
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Backend backend() const { return fBackend; }
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private:
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const bool fDecompress;
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const Backend fBackend;
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typedef ETCBitmapBenchBase INHERITED;
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};
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// This benchmark is identical to the previous benchmark, but it explicitly forces
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// an upload to the GPU before each draw call. We do this by notifying the bitmap
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// that the pixels have changed (even though they haven't).
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class ETCBitmapUploadBench : public ETCBitmapBench {
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public:
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ETCBitmapUploadBench(bool decompress, Backend backend)
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: ETCBitmapBench(decompress, backend) { }
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protected:
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virtual const char* onGetName() SK_OVERRIDE {
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if (kGPU_Backend == this->backend()) {
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if (this->decompress()) {
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return "etc1bitmap_upload_gpu_decompressed";
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} else {
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return "etc1bitmap_upload_gpu_compressed";
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}
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} else {
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SkASSERT(kRaster_Backend == this->backend());
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if (this->decompress()) {
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return "etc1bitmap_upload_raster_decompressed";
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} else {
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return "etc1bitmap_upload_raster_compressed";
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}
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}
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}
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virtual void onDraw(const int loops, SkCanvas* canvas) SK_OVERRIDE {
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SkPixelRef* pr = fBitmap.pixelRef();
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for (int i = 0; i < loops; ++i) {
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if (pr) {
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pr->notifyPixelsChanged();
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}
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canvas->drawBitmap(this->fBitmap, 0, 0, NULL);
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}
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}
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private:
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typedef ETCBitmapBench INHERITED;
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};
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DEF_BENCH(return new ETCBitmapBench(false, Benchmark::kRaster_Backend);)
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DEF_BENCH(return new ETCBitmapBench(true, Benchmark::kRaster_Backend);)
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DEF_BENCH(return new ETCBitmapBench(false, Benchmark::kGPU_Backend);)
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DEF_BENCH(return new ETCBitmapBench(true, Benchmark::kGPU_Backend);)
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DEF_BENCH(return new ETCBitmapUploadBench(false, Benchmark::kRaster_Backend);)
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DEF_BENCH(return new ETCBitmapUploadBench(true, Benchmark::kRaster_Backend);)
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DEF_BENCH(return new ETCBitmapUploadBench(false, Benchmark::kGPU_Backend);)
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DEF_BENCH(return new ETCBitmapUploadBench(true, Benchmark::kGPU_Backend);)
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#endif // SK_IGNORE_ETC1_SUPPORT
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