jpeg_decoder_bench.cpp revision 4b6f4942fcef3300b407d9a07a680c07b162333f
1/* 2 * Copyright (C) 2009 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17#define LOG_TAG "OmxJpegDecoder" 18#include <sys/time.h> 19#include <utils/Log.h> 20 21#include <binder/ProcessState.h> 22 23#include "SkBitmap.h" 24#include "SkImageDecoder.h" 25#include "SkStream.h" 26#include "omx_jpeg_decoder.h" 27 28int nullObjectReturn(const char msg[]) { 29 if (msg) { 30 SkDebugf("--- %s\n", msg); 31 } 32 return -1; 33} 34 35static int64_t getNowUs() { 36 struct timeval tv; 37 gettimeofday(&tv, NULL); 38 39 return tv.tv_usec + (int64_t) tv.tv_sec * 1000000; 40} 41 42int testDecodeBounds(SkImageDecoder* decoder, SkStream* stream, 43 SkBitmap* bitmap) { 44 int64_t startTime = getNowUs(); 45 SkBitmap::Config prefConfig = SkBitmap::kARGB_8888_Config; 46 SkImageDecoder::Mode decodeMode = SkImageDecoder::kDecodeBounds_Mode; 47 48 // Decode the input stream and then use the bitmap. 49 if (!decoder->decode(stream, bitmap, prefConfig, decodeMode)) { 50 return nullObjectReturn("decoder->decode returned false"); 51 } else { 52 int64_t delay = getNowUs() - startTime; 53 printf("WidthxHeight: %dx%d\n", bitmap->width(), bitmap->height()); 54 printf("Decoding Time in BoundsMode %.1f msec.\n", delay / 1000.0f); 55 return 0; 56 } 57} 58 59int testDecodePixels(SkImageDecoder* decoder, SkStream* stream, 60 SkBitmap* bitmap) { 61 int64_t startTime = getNowUs(); 62 SkBitmap::Config prefConfig = SkBitmap::kARGB_8888_Config; 63 SkImageDecoder::Mode decodeMode = SkImageDecoder::kDecodePixels_Mode; 64 65 // Decode the input stream and then use the bitmap. 66 if (!decoder->decode(stream, bitmap, prefConfig, decodeMode)) { 67 return nullObjectReturn("decoder->decode returned false"); 68 } else { 69 int64_t delay = getNowUs() - startTime; 70 printf("Decoding Time in PixelsMode %.1f msec.\n", delay / 1000.0f); 71 char* filename = "/sdcard/omxJpegDecodedBitmap.rgba"; 72 return storeBitmapToFile(bitmap, filename); 73 } 74} 75 76int testDecoder(SkImageDecoder* decoder, char* filename) { 77 // test DecodeMode == Pixels 78 SkStream* stream = new SkFILEStream(filename); 79 SkBitmap* bitmap = new SkBitmap; 80 testDecodePixels(decoder, stream, bitmap); 81 delete bitmap; 82 83 // test DecodeMode == Bounds 84 stream = new SkFILEStream(filename); 85 bitmap = new SkBitmap; 86 testDecodeBounds(decoder, stream, bitmap); 87 delete bitmap; 88 89 delete decoder; 90 return 0; 91} 92 93int main(int argc, char** argv) { 94 android::ProcessState::self()->startThreadPool(); 95 96 printf("Decoding jpeg with libjpeg...\n"); 97 SkJPEGImageDecoder* libjpeg = new SkJPEGImageDecoder; 98 testDecoder(libjpeg, argv[1]); 99 100 printf("\nDecoding jpeg with OMX...\n"); 101 OmxJpegImageDecoder* omx = new OmxJpegImageDecoder; 102 testDecoder(omx, argv[1]); 103 return 0; 104} 105