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
28 class SkJPEGImageDecoder : public SkImageDecoder {
29 public:
getFormat() const30 virtual Format getFormat() const {
31 return kJPEG_Format;
32 }
33
34 protected:
35 virtual bool onDecode(SkStream* stream, SkBitmap* bm, Mode);
36 };
37
nullObjectReturn(const char msg[])38 int nullObjectReturn(const char msg[]) {
39 if (msg) {
40 SkDebugf("--- %s\n", msg);
41 }
42 return -1;
43 }
44
getNowUs()45 static int64_t getNowUs() {
46 struct timeval tv;
47 gettimeofday(&tv, NULL);
48
49 return tv.tv_usec + (int64_t) tv.tv_sec * 1000000;
50 }
51
testDecodeBounds(SkImageDecoder * decoder,SkStream * stream,SkBitmap * bitmap)52 int testDecodeBounds(SkImageDecoder* decoder, SkStream* stream,
53 SkBitmap* bitmap) {
54 int64_t startTime = getNowUs();
55 SkBitmap::Config prefConfig = SkBitmap::kARGB_8888_Config;
56 SkImageDecoder::Mode decodeMode = SkImageDecoder::kDecodeBounds_Mode;
57
58 // Decode the input stream and then use the bitmap.
59 if (!decoder->decode(stream, bitmap, prefConfig, decodeMode)) {
60 return nullObjectReturn("decoder->decode returned false");
61 } else {
62 int64_t delay = getNowUs() - startTime;
63 printf("WidthxHeight: %dx%d\n", bitmap->width(), bitmap->height());
64 printf("Decoding Time in BoundsMode %.1f msec.\n", delay / 1000.0f);
65 return 0;
66 }
67 }
68
testDecodePixels(SkImageDecoder * decoder,SkStream * stream,SkBitmap * bitmap)69 int testDecodePixels(SkImageDecoder* decoder, SkStream* stream,
70 SkBitmap* bitmap) {
71 int64_t startTime = getNowUs();
72 SkBitmap::Config prefConfig = SkBitmap::kARGB_8888_Config;
73 SkImageDecoder::Mode decodeMode = SkImageDecoder::kDecodePixels_Mode;
74
75 // Decode the input stream and then use the bitmap.
76 if (!decoder->decode(stream, bitmap, prefConfig, decodeMode)) {
77 return nullObjectReturn("decoder->decode returned false");
78 } else {
79 int64_t delay = getNowUs() - startTime;
80 printf("Decoding Time in PixelsMode %.1f msec.\n", delay / 1000.0f);
81 const char* filename = "/sdcard/omxJpegDecodedBitmap.rgba";
82 return storeBitmapToFile(bitmap, filename);
83 }
84 }
85
testDecoder(SkImageDecoder * decoder,char * filename)86 int testDecoder(SkImageDecoder* decoder, char* filename) {
87 // test DecodeMode == Pixels
88 SkStream* stream = new SkFILEStream(filename);
89 SkBitmap* bitmap = new SkBitmap;
90 testDecodePixels(decoder, stream, bitmap);
91 delete bitmap;
92
93 // test DecodeMode == Bounds
94 stream = new SkFILEStream(filename);
95 bitmap = new SkBitmap;
96 testDecodeBounds(decoder, stream, bitmap);
97 delete bitmap;
98
99 delete decoder;
100 return 0;
101 }
102
main(int argc,char ** argv)103 int main(int argc, char** argv) {
104 android::ProcessState::self()->startThreadPool();
105
106 printf("Decoding jpeg with libjpeg...\n");
107 SkJPEGImageDecoder* libjpeg = new SkJPEGImageDecoder;
108 testDecoder(libjpeg, argv[1]);
109
110 printf("\nDecoding jpeg with OMX...\n");
111 OmxJpegImageDecoder* omx = new OmxJpegImageDecoder;
112 testDecoder(omx, argv[1]);
113 return 0;
114 }
115