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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 "SkCommandLineFlags.h"
#include "SkGraphics.h"
#include "SkImageDecoder.h"
#include "SkImageEncoder.h"
#include "SkOSFile.h"
#include "SkStream.h"
#include "SkTArray.h"
#include "SkTemplates.h"
DEFINE_string2(readPath, r, "", "Folder(s) and files to decode images. Required.");
DEFINE_string2(writePath, w, "", "Write rendered images into this directory.");
// Store the names of the filenames to report later which ones failed, succeeded, and were
// invalid.
static SkTArray<SkString, false> invalids;
static SkTArray<SkString, false> nocodecs;
static SkTArray<SkString, false> failures;
static SkTArray<SkString, false> successes;
static bool decodeFile(SkBitmap* bitmap, const char srcPath[]) {
SkFILEStream stream(srcPath);
if (!stream.isValid()) {
invalids.push_back().set(srcPath);
return false;
}
SkImageDecoder* codec = SkImageDecoder::Factory(&stream);
if (NULL == codec) {
nocodecs.push_back().set(srcPath);
return false;
}
SkAutoTDelete<SkImageDecoder> ad(codec);
stream.rewind();
if (!codec->decode(&stream, bitmap, SkBitmap::kARGB_8888_Config,
SkImageDecoder::kDecodePixels_Mode)) {
failures.push_back().set(srcPath);
return false;
}
successes.push_back().printf("%s [%d %d]", srcPath, bitmap->width(), bitmap->height());
return true;
}
///////////////////////////////////////////////////////////////////////////////
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);
if (!dst->endsWith(".png")) {
const char* cstyleDst = dst->c_str();
const char* dot = strrchr(cstyleDst, '.');
if (dot != NULL) {
int32_t index = SkToS32(dot - cstyleDst);
dst->remove(index, dst->size() - index);
}
dst->append(".png");
}
}
// If strings is not empty, print title, followed by each string on its own line starting
// with a tab.
static void print_strings(const char* title, const SkTArray<SkString, false>& strings) {
if (strings.count() > 0) {
SkDebugf("%s:\n", title);
for (int i = 0; i < strings.count(); i++) {
SkDebugf("\t%s\n", strings[i].c_str());
}
SkDebugf("\n");
}
}
static void decodeFileAndWrite(const char filePath[], const SkString* writePath) {
SkBitmap bitmap;
if (decodeFile(&bitmap, filePath)) {
if (writePath != NULL) {
SkString outPath;
make_outname(&outPath, writePath->c_str(), filePath);
successes.push_back().appendf("\twrote %s", outPath.c_str());
SkImageEncoder::EncodeFile(outPath.c_str(), bitmap, SkImageEncoder::kPNG_Type, 100);
}
}
}
int tool_main(int argc, char** argv);
int tool_main(int argc, char** argv) {
SkCommandLineFlags::SetUsage("Decode files, and optionally write the results to files.");
SkCommandLineFlags::Parse(argc, argv);
if (FLAGS_readPath.count() < 1) {
SkDebugf("Folder(s) or image(s) to decode are required.\n");
return -1;
}
SkAutoGraphics ag;
SkString outDir;
SkString* outDirPtr;
if (FLAGS_writePath.count() == 1) {
outDir.set(FLAGS_writePath[0]);
if (outDir.c_str()[outDir.size() - 1] != '/') {
outDir.append("/");
}
outDirPtr = &outDir;
} else {
outDirPtr = NULL;
}
for (int i = 0; i < FLAGS_readPath.count(); i++) {
if (strlen(FLAGS_readPath[i]) < 1) {
break;
}
SkOSFile::Iter iter(FLAGS_readPath[i]);
SkString filename;
if (iter.next(&filename)) {
SkString directory(FLAGS_readPath[i]);
if (directory[directory.size() - 1] != '/') {
directory.append("/");
}
do {
SkString fullname(directory);
fullname.append(filename);
decodeFileAndWrite(fullname.c_str(), outDirPtr);
} while (iter.next(&filename));
} else {
decodeFileAndWrite(FLAGS_readPath[i], outDirPtr);
}
}
// Add some space, since codecs may print warnings without newline.
SkDebugf("\n\n");
print_strings("Invalid files", invalids);
print_strings("Missing codec", nocodecs);
print_strings("Failed to decode", failures);
print_strings("Decoded", successes);
return 0;
}
void forceLinking();
void forceLinking() {
// This function leaks, but that is okay because it is not intended
// to be called. It is only here so that the linker will include the
// decoders.
SkDEBUGCODE(SkImageDecoder *creator = ) CreateJPEGImageDecoder();
SkASSERT(creator);
SkDEBUGCODE(creator = ) CreateWEBPImageDecoder();
SkASSERT(creator);
#ifdef SK_BUILD_FOR_UNIX
SkDEBUGCODE(creator = ) CreateGIFImageDecoder();
SkASSERT(creator);
#endif
}
#if !defined SK_BUILD_FOR_IOS
int main(int argc, char * const argv[]) {
return tool_main(argc, (char**) argv);
}
#endif
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