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/*
* Copyright 2011 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#include "SkBitmap.h"
#include "SkGraphics.h"
#include "SkImageDecoder.h"
#include "SkImageEncoder.h"
#include "SkStream.h"
#include "SkTemplates.h"
static bool decodeFile(SkBitmap* bitmap, const char srcPath[]) {
SkFILEStream stream(srcPath);
if (!stream.isValid()) {
SkDebugf("ERROR: bad filename <%s>\n", srcPath);
return false;
}
SkImageDecoder* codec = SkImageDecoder::Factory(&stream);
if (NULL == codec) {
SkDebugf("ERROR: no codec found for <%s>\n", srcPath);
return false;
}
SkAutoTDelete<SkImageDecoder> ad(codec);
stream.rewind();
if (!codec->decode(&stream, bitmap, SkBitmap::kARGB_8888_Config,
SkImageDecoder::kDecodePixels_Mode)) {
SkDebugf("ERROR: codec failed for <%s>\n", srcPath);
return false;
}
return true;
}
///////////////////////////////////////////////////////////////////////////////
static void show_help() {
SkDebugf("usage: skiamge [-o out-dir] inputfiles...\n");
}
static void make_outname(SkString* dst, const char outDir[], const char src[]) {
dst->set(outDir);
const char* start = strrchr(src, '/');
if (start) {
start += 1; // skip the actual last '/'
} else {
start = src;
}
dst->append(start);
dst->append(".png");
}
int main (int argc, char * const argv[]) {
SkAutoGraphics ag;
int i, outDirIndex = 0;
SkString outDir;
for (i = 1; i < argc; i++) {
if (!strcmp(argv[i], "-help")) {
show_help();
return 0;
}
if (!strcmp(argv[i], "-o")) {
if (i == argc-1) {
SkDebugf("ERROR: -o needs a following filename\n");
return -1;
}
outDirIndex = i;
outDir.set(argv[i+1]);
if (outDir.c_str()[outDir.size() - 1] != '/') {
outDir.append("/");
}
i += 1; // skip the out dir name
}
}
for (i = 1; i < argc; i++) {
if (i == outDirIndex) {
i += 1; // skip this and the next entry
continue;
}
SkBitmap bitmap;
if (decodeFile(&bitmap, argv[i])) {
if (outDirIndex) {
SkString outPath;
make_outname(&outPath, outDir.c_str(), argv[i]);
SkDebugf(" writing %s\n", outPath.c_str());
SkImageEncoder::EncodeFile(outPath.c_str(), bitmap,
SkImageEncoder::kPNG_Type, 100);
} else {
SkDebugf(" decoded %s [%d %d]\n", argv[i], bitmap.width(),
bitmap.height());
}
}
}
return 0;
}
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