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/*
* Copyright 2009 The Android Open Source Project
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#include "SkImageEncoderPriv.h"
#include "SkJpegEncoder.h"
#include "SkPngEncoder.h"
#include "SkWebpEncoder.h"
#ifndef SK_HAS_JPEG_LIBRARY
bool SkJpegEncoder::Encode(SkWStream*, const SkPixmap&, const Options&) { return false; }
std::unique_ptr<SkEncoder> SkJpegEncoder::Make(SkWStream*, const SkPixmap&, const Options&) {
return nullptr;
}
#endif
#ifndef SK_HAS_PNG_LIBRARY
bool SkPngEncoder::Encode(SkWStream*, const SkPixmap&, const Options&) { return false; }
std::unique_ptr<SkEncoder> SkPngEncoder::Make(SkWStream*, const SkPixmap&, const Options&) {
return nullptr;
}
#endif
#ifndef SK_HAS_WEBP_LIBRARY
bool SkWebpEncoder::Encode(SkWStream*, const SkPixmap&, const Options&) { return false; }
#endif
bool SkEncodeImage(SkWStream* dst, const SkPixmap& src,
SkEncodedImageFormat format, int quality) {
#ifdef SK_USE_CG_ENCODER
(void)quality;
return SkEncodeImageWithCG(dst, src, format);
#elif SK_USE_WIC_ENCODER
return SkEncodeImageWithWIC(dst, src, format, quality);
#else
switch(format) {
case SkEncodedImageFormat::kJPEG: {
SkJpegEncoder::Options opts;
opts.fQuality = quality;
opts.fBlendBehavior = SkTransferFunctionBehavior::kIgnore;
return SkJpegEncoder::Encode(dst, src, opts);
}
case SkEncodedImageFormat::kPNG: {
SkPngEncoder::Options opts;
opts.fUnpremulBehavior = SkTransferFunctionBehavior::kIgnore;
return SkPngEncoder::Encode(dst, src, opts);
}
case SkEncodedImageFormat::kWEBP: {
SkWebpEncoder::Options opts;
opts.fCompression = SkWebpEncoder::Compression::kLossy;
opts.fQuality = quality;
opts.fUnpremulBehavior = SkTransferFunctionBehavior::kIgnore;
return SkWebpEncoder::Encode(dst, src, opts);
}
default:
return false;
}
#endif
}
bool SkEncoder::encodeRows(int numRows) {
SkASSERT(numRows > 0 && fCurrRow < fSrc.height());
if (numRows <= 0 || fCurrRow >= fSrc.height()) {
return false;
}
if (fCurrRow + numRows > fSrc.height()) {
numRows = fSrc.height() - fCurrRow;
}
if (!this->onEncodeRows(numRows)) {
// If we fail, short circuit any future calls.
fCurrRow = fSrc.height();
return false;
}
return true;
}
sk_sp<SkData> SkEncodePixmap(const SkPixmap& src, SkEncodedImageFormat format, int quality) {
SkDynamicMemoryWStream stream;
return SkEncodeImage(&stream, src, format, quality) ? stream.detachAsData() : nullptr;
}
sk_sp<SkData> SkEncodeBitmap(const SkBitmap& src, SkEncodedImageFormat format, int quality) {
SkPixmap pixmap;
return src.peekPixels(&pixmap) ? SkEncodePixmap(pixmap, format, quality) : nullptr;
}
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