skia2/samplecode/DecodeFile.h

32 lines
949 B
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 "SkBitmap.h"
#include "SkCodec.h"
#include "SkData.h"
inline bool decode_file(const char* filename, SkBitmap* bitmap,
SkColorType colorType = kN32_SkColorType, bool requireUnpremul = false) {
SkASSERT(kIndex_8_SkColorType != colorType);
SkAutoTUnref<SkData> data(SkData::NewFromFileName(filename));
SkAutoTDelete<SkCodec> codec(SkCodec::NewFromData(data));
if (!codec) {
return false;
}
SkImageInfo info = codec->getInfo().makeColorType(colorType);
if (requireUnpremul && kPremul_SkAlphaType == info.alphaType()) {
info = info.makeAlphaType(kUnpremul_SkAlphaType);
}
if (!bitmap->tryAllocPixels(info)) {
return false;
}
return SkCodec::kSuccess == codec->getPixels(info, bitmap->getPixels(), bitmap->rowBytes());
}