skimage_main.cpp revision 80bacfeb4bda06541e8695bd502229727bccfeab 
1
2/*
3 * Copyright 2011 Google Inc.
4 *
5 * Use of this source code is governed by a BSD-style license that can be
6 * found in the LICENSE file.
7 */
8#include "SkBitmap.h"
9#include "SkGraphics.h"
10#include "SkImageDecoder.h"
11#include "SkImageEncoder.h"
12#include "SkStream.h"
13#include "SkTemplates.h"
14
15static bool decodeFile(SkBitmap* bitmap, const char srcPath[]) {
16    SkFILEStream stream(srcPath);
17    if (!stream.isValid()) {
18        SkDebugf("ERROR: bad filename <%s>\n", srcPath);
19        return false;
20    }
21
22    SkImageDecoder* codec = SkImageDecoder::Factory(&stream);
23    if (NULL == codec) {
24        SkDebugf("ERROR: no codec found for <%s>\n", srcPath);
25        return false;
26    }
27
28    SkAutoTDelete<SkImageDecoder> ad(codec);
29
30    stream.rewind();
31    if (!codec->decode(&stream, bitmap, SkBitmap::kARGB_8888_Config,
32                       SkImageDecoder::kDecodePixels_Mode)) {
33        SkDebugf("ERROR: codec failed for <%s>\n", srcPath);
34        return false;
35    }
36    return true;
37}
38
39///////////////////////////////////////////////////////////////////////////////
40
41static void show_help() {
42    SkDebugf("usage: skiamge [-o out-dir] inputfiles...\n");
43}
44
45static void make_outname(SkString* dst, const char outDir[], const char src[]) {
46    dst->set(outDir);
47    const char* start = strrchr(src, '/');
48    if (start) {
49        start += 1; // skip the actual last '/'
50    } else {
51        start = src;
52    }
53    dst->append(start);
54    dst->append(".png");
55}
56
57int tool_main(int argc, char** argv);
58int tool_main(int argc, char** argv) {
59    SkAutoGraphics ag;
60    int i, outDirIndex = 0;
61    SkString outDir;
62
63    for (i = 1; i < argc; i++) {
64        if (!strcmp(argv[i], "-help")) {
65            show_help();
66            return 0;
67        }
68        if (!strcmp(argv[i], "-o")) {
69            if (i == argc-1) {
70                SkDebugf("ERROR: -o needs a following filename\n");
71                return -1;
72            }
73            outDirIndex = i;
74            outDir.set(argv[i+1]);
75            if (outDir.c_str()[outDir.size() - 1] != '/') {
76                outDir.append("/");
77            }
78            i += 1; // skip the out dir name
79        }
80    }
81
82    for (i = 1; i < argc; i++) {
83        if (i == outDirIndex) {
84            i += 1; // skip this and the next entry
85            continue;
86        }
87
88        SkBitmap bitmap;
89        if (decodeFile(&bitmap, argv[i])) {
90            if (outDirIndex) {
91                SkString outPath;
92                make_outname(&outPath, outDir.c_str(), argv[i]);
93                SkDebugf("  writing %s\n", outPath.c_str());
94                SkImageEncoder::EncodeFile(outPath.c_str(), bitmap,
95                                           SkImageEncoder::kPNG_Type, 100);
96            } else {
97                SkDebugf("  decoded %s [%d %d]\n", argv[i], bitmap.width(),
98                         bitmap.height());
99            }
100        }
101    }
102
103    return 0;
104}
105
106#if !defined SK_BUILD_FOR_IOS
107int main(int argc, char * const argv[]) {
108    return tool_main(argc, (char**) argv);
109}
110#endif
111
112