1/* 2 * Copyright 2014 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 "Benchmark.h" 9#include "Resources.h" 10#include "SkCanvas.h" 11#include "SkData.h" 12#include "SkDecodingImageGenerator.h" 13#include "SkImageDecoder.h" 14#include "SkOSFile.h" 15#include "SkPixelRef.h" 16 17#ifndef SK_IGNORE_ETC1_SUPPORT 18 19#include "etc1.h" 20 21// This takes the etc1 data pointed to by orig, and copies it `factor` times in each 22// dimension. The return value is the new data or NULL on error. 23static etc1_byte* create_expanded_etc1_bitmap(const uint8_t* orig, int factor) { 24 SkASSERT(NULL != orig); 25 SkASSERT(factor > 1); 26 27 const etc1_byte* origData = reinterpret_cast<const etc1_byte*>(orig); 28 if (!etc1_pkm_is_valid(orig)) { 29 return NULL; 30 } 31 32 etc1_uint32 origWidth = etc1_pkm_get_width(origData); 33 etc1_uint32 origHeight = etc1_pkm_get_height(origData); 34 35 // The width and height must be aligned along block boundaries 36 static const etc1_uint32 kETC1BlockWidth = 4; 37 static const etc1_uint32 kETC1BlockHeight = 4; 38 if ((origWidth % kETC1BlockWidth) != 0 || 39 (origHeight % kETC1BlockHeight) != 0) { 40 return NULL; 41 } 42 43 // The picture must be at least as large as a block. 44 if (origWidth <= kETC1BlockWidth || origHeight <= kETC1BlockHeight) { 45 return NULL; 46 } 47 48 etc1_uint32 newWidth = origWidth * factor; 49 etc1_uint32 newHeight = origHeight * factor; 50 51 etc1_uint32 newDataSz = etc1_get_encoded_data_size(newWidth, newHeight); 52 etc1_byte* newData = reinterpret_cast<etc1_byte *>( 53 sk_malloc_throw(newDataSz + ETC_PKM_HEADER_SIZE)); 54 etc1_pkm_format_header(newData, newWidth, newHeight); 55 56 etc1_byte* copyInto = newData; 57 58 copyInto += ETC_PKM_HEADER_SIZE; 59 origData += ETC_PKM_HEADER_SIZE; 60 61 etc1_uint32 origBlocksX = (origWidth >> 2); 62 etc1_uint32 origBlocksY = (origHeight >> 2); 63 etc1_uint32 newBlocksY = (newHeight >> 2); 64 etc1_uint32 origRowSzInBytes = origBlocksX * ETC1_ENCODED_BLOCK_SIZE; 65 66 for (etc1_uint32 j = 0; j < newBlocksY; ++j) { 67 const etc1_byte* rowStart = origData + ((j % origBlocksY) * origRowSzInBytes); 68 for(etc1_uint32 i = 0; i < newWidth; i += origWidth) { 69 memcpy(copyInto, rowStart, origRowSzInBytes); 70 copyInto += origRowSzInBytes; 71 } 72 } 73 return newData; 74} 75 76// This is the base class for all of the benches in this file. In general 77// the ETC1 benches should all be working on the same data. Due to the 78// simplicity of the PKM file, that data is the 128x128 mandrill etc1 79// compressed texture repeated by some factor (currently 8 -> 1024x1024) 80class ETCBitmapBenchBase : public Benchmark { 81public: 82 ETCBitmapBenchBase() : fPKMData(loadPKM()) { 83 if (NULL == fPKMData) { 84 SkDebugf("Could not load PKM data!"); 85 } 86 } 87 88protected: 89 SkAutoDataUnref fPKMData; 90 91private: 92 SkData *loadPKM() { 93 SkString resourcePath = GetResourcePath(); 94 SkString filename = SkOSPath::SkPathJoin(resourcePath.c_str(), 95 "mandrill_128.pkm"); 96 97 // Expand the data 98 SkAutoDataUnref fileData(SkData::NewFromFileName(filename.c_str())); 99 if (NULL == fileData) { 100 SkDebugf("Could not open the file. Did you forget to set the resourcePath?\n"); 101 return NULL; 102 } 103 104 const etc1_uint32 kExpansionFactor = 8; 105 etc1_byte* expandedETC1 = 106 create_expanded_etc1_bitmap(fileData->bytes(), kExpansionFactor); 107 if (NULL == expandedETC1) { 108 SkDebugf("Error expanding ETC1 data by factor of %d\n", kExpansionFactor); 109 return NULL; 110 } 111 112 etc1_uint32 width = etc1_pkm_get_width(expandedETC1); 113 etc1_uint32 height = etc1_pkm_get_width(expandedETC1); 114 etc1_uint32 dataSz = ETC_PKM_HEADER_SIZE + etc1_get_encoded_data_size(width, height); 115 return SkData::NewFromMalloc(expandedETC1, dataSz); 116 } 117 118 typedef Benchmark INHERITED; 119}; 120 121// This is the rendering benchmark. Prior to rendering the data, create a 122// bitmap using the etc1 data. 123class ETCBitmapBench : public ETCBitmapBenchBase { 124public: 125 ETCBitmapBench(bool decompress, Backend backend) 126 : fDecompress(decompress), fBackend(backend) { } 127 128 virtual bool isSuitableFor(Backend backend) SK_OVERRIDE { 129 return backend == this->fBackend; 130 } 131 132protected: 133 virtual const char* onGetName() SK_OVERRIDE { 134 if (kGPU_Backend == this->fBackend) { 135 if (this->fDecompress) { 136 return "etc1bitmap_render_gpu_decompressed"; 137 } else { 138 return "etc1bitmap_render_gpu_compressed"; 139 } 140 } else { 141 SkASSERT(kRaster_Backend == this->fBackend); 142 if (this->fDecompress) { 143 return "etc1bitmap_render_raster_decompressed"; 144 } else { 145 return "etc1bitmap_render_raster_compressed"; 146 } 147 } 148 } 149 150 virtual void onPreDraw() SK_OVERRIDE { 151 if (NULL == fPKMData) { 152 SkDebugf("Failed to load PKM data!\n"); 153 return; 154 } 155 156 // Install pixel ref 157 if (!SkInstallDiscardablePixelRef( 158 SkDecodingImageGenerator::Create( 159 fPKMData, SkDecodingImageGenerator::Options()), &(this->fBitmap))) { 160 SkDebugf("Could not install discardable pixel ref.\n"); 161 return; 162 } 163 164 // Decompress it if necessary 165 if (this->fDecompress) { 166 this->fBitmap.lockPixels(); 167 } 168 } 169 170 virtual void onDraw(const int loops, SkCanvas* canvas) SK_OVERRIDE { 171 for (int i = 0; i < loops; ++i) { 172 canvas->drawBitmap(this->fBitmap, 0, 0, NULL); 173 } 174 } 175 176protected: 177 SkBitmap fBitmap; 178 bool decompress() const { return fDecompress; } 179 Backend backend() const { return fBackend; } 180private: 181 const bool fDecompress; 182 const Backend fBackend; 183 typedef ETCBitmapBenchBase INHERITED; 184}; 185 186// This benchmark is identical to the previous benchmark, but it explicitly forces 187// an upload to the GPU before each draw call. We do this by notifying the bitmap 188// that the pixels have changed (even though they haven't). 189class ETCBitmapUploadBench : public ETCBitmapBench { 190public: 191 ETCBitmapUploadBench(bool decompress, Backend backend) 192 : ETCBitmapBench(decompress, backend) { } 193 194protected: 195 virtual const char* onGetName() SK_OVERRIDE { 196 if (kGPU_Backend == this->backend()) { 197 if (this->decompress()) { 198 return "etc1bitmap_upload_gpu_decompressed"; 199 } else { 200 return "etc1bitmap_upload_gpu_compressed"; 201 } 202 } else { 203 SkASSERT(kRaster_Backend == this->backend()); 204 if (this->decompress()) { 205 return "etc1bitmap_upload_raster_decompressed"; 206 } else { 207 return "etc1bitmap_upload_raster_compressed"; 208 } 209 } 210 } 211 212 virtual void onDraw(const int loops, SkCanvas* canvas) SK_OVERRIDE { 213 for (int i = 0; i < loops; ++i) { 214 this->fBitmap.pixelRef()->notifyPixelsChanged(); 215 canvas->drawBitmap(this->fBitmap, 0, 0, NULL); 216 } 217 } 218 219private: 220 typedef ETCBitmapBench INHERITED; 221}; 222 223DEF_BENCH(return new ETCBitmapBench(false, Benchmark::kRaster_Backend);) 224DEF_BENCH(return new ETCBitmapBench(true, Benchmark::kRaster_Backend);) 225 226DEF_BENCH(return new ETCBitmapBench(false, Benchmark::kGPU_Backend);) 227DEF_BENCH(return new ETCBitmapBench(true, Benchmark::kGPU_Backend);) 228 229DEF_BENCH(return new ETCBitmapUploadBench(false, Benchmark::kRaster_Backend);) 230DEF_BENCH(return new ETCBitmapUploadBench(true, Benchmark::kRaster_Backend);) 231 232DEF_BENCH(return new ETCBitmapUploadBench(false, Benchmark::kGPU_Backend);) 233DEF_BENCH(return new ETCBitmapUploadBench(true, Benchmark::kGPU_Backend);) 234 235#endif // SK_IGNORE_ETC1_SUPPORT 236