skia2/tools/get_images_from_skps.cpp

140 lines
4.9 KiB
C++

/*
* Copyright 2016 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#include "SkCanvas.h"
#include "SkCodec.h"
#include "SkCommandLineFlags.h"
#include "SkData.h"
#include "SkOSFile.h"
#include "SkPicture.h"
#include "SkStream.h"
DEFINE_string2(skps, s, "", "A path to a directory of skps.");
DEFINE_string2(out, o, "", "A path to an output directory.");
static int gCtr = 0;
static int gSuccessCtr = 0;
static int gUnknownCtr = 0;
static int gFailureCtr = 0;
static const char* gOutputDir;
void setup_output_dirs() {
const char* exts[] = { "jpg", "png", "gif", "webp", "bmp", "wbmp", "ico", "dng", "unknown" };
for (const char* ext : exts) {
sk_mkdir(SkOSPath::Join(gOutputDir, ext).c_str());
}
}
bool store_encoded_to_file(const void* encoded, size_t length, SkBitmap* bitmap) {
// Silence warnings about empty bitmaps.
bitmap->allocN32Pixels(1, 1, true);
SkString path;
SkAutoTUnref<SkData> data(SkData::NewWithoutCopy(encoded, length));
SkAutoTDelete<SkCodec> codec(SkCodec::NewFromData(data));
if (codec) {
switch (codec->getEncodedFormat()) {
case SkEncodedFormat::kJPEG_SkEncodedFormat:
path = SkOSPath::Join(SkOSPath::Join(gOutputDir, "jpg").c_str(), "");
path.appendS32(gCtr++);
path.append(".jpg");
break;
case SkEncodedFormat::kPNG_SkEncodedFormat:
path = SkOSPath::Join(SkOSPath::Join(gOutputDir, "png").c_str(), "");
path.appendS32(gCtr++);
path.append(".png");
break;
case SkEncodedFormat::kGIF_SkEncodedFormat:
path = SkOSPath::Join(SkOSPath::Join(gOutputDir, "gif").c_str(), "");
path.appendS32(gCtr++);
path.append(".gif");
break;
case SkEncodedFormat::kWEBP_SkEncodedFormat:
path = SkOSPath::Join(SkOSPath::Join(gOutputDir, "webp").c_str(), "");
path.appendS32(gCtr++);
path.append(".webp");
break;
case SkEncodedFormat::kBMP_SkEncodedFormat:
path = SkOSPath::Join(SkOSPath::Join(gOutputDir, "bmp").c_str(), "");
path.appendS32(gCtr++);
path.append(".bmp");
break;
case SkEncodedFormat::kWBMP_SkEncodedFormat:
path = SkOSPath::Join(SkOSPath::Join(gOutputDir, "wbmp").c_str(), "");
path.appendS32(gCtr++);
path.append(".wbmp");
break;
case SkEncodedFormat::kICO_SkEncodedFormat:
path = SkOSPath::Join(SkOSPath::Join(gOutputDir, "ico").c_str(), "");
path.appendS32(gCtr++);
path.append(".ico");
break;
case SkEncodedFormat::kRAW_SkEncodedFormat:
path = SkOSPath::Join(SkOSPath::Join(gOutputDir, "dng").c_str(), "");
path.appendS32(gCtr++);
path.append(".dng");
break;
default:
path = SkOSPath::Join(gOutputDir, "unknown");
path.appendS32(gUnknownCtr++);
break;
}
} else {
path = SkOSPath::Join(gOutputDir, "unknown");
path.appendS32(gUnknownCtr++);
}
FILE* file = sk_fopen(path.c_str(), kWrite_SkFILE_Flag);
if (file) {
sk_fwrite(encoded, length, file);
sk_fclose(file);
gSuccessCtr++;
return true;
}
gFailureCtr++;
SkDebugf("Could not open %s\n", path.c_str());
return false;
}
int main(int argc, char** argv) {
SkCommandLineFlags::SetUsage(
"Usage: get_images_from_skps -s <dir of skps> -o <dir for output images>\n");
SkCommandLineFlags::Parse(argc, argv);
if (FLAGS_skps.isEmpty() || FLAGS_out.isEmpty()) {
SkCommandLineFlags::PrintUsage();
return 1;
}
const char* inputs = FLAGS_skps[0];
gOutputDir = FLAGS_out[0];
if (!sk_isdir(inputs) || !sk_isdir(gOutputDir)) {
SkCommandLineFlags::PrintUsage();
return 1;
}
setup_output_dirs();
SkOSFile::Iter iter(inputs, "skp");
for (SkString file; iter.next(&file); ) {
SkAutoTDelete<SkStream> stream =
SkStream::NewFromFile(SkOSPath::Join(inputs, file.c_str()).c_str());
// Rather than passing in a function that actually decodes the encoded data,
// we pass in a function that saves the encoded data to a file.
SkAutoTUnref<SkPicture> picture(SkPicture::CreateFromStream(stream, store_encoded_to_file));
SkCanvas canvas;
canvas.drawPicture(picture);
}
SkDebugf("Successfully saved %d recognized images and %d unrecognized images\n", gSuccessCtr,
gUnknownCtr);
SkDebugf("Failed to write %d images\n", gFailureCtr);
return 0;
}