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