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