uint8_t*
SourceSurfaceSkia::GetData()
{
#ifdef USE_SKIA_GPU
if (mImage->isTextureBacked()) {
sk_sp<SkImage> raster;
if (sk_sp<SkData> data = MakeSkData(nullptr, mSize, mStride)) {
SkImageInfo info = MakeSkiaImageInfo(mSize, mFormat);
if (mImage->readPixels(info, data->writable_data(), mStride, 0, 0, SkImage::kDisallow_CachingHint)) {
raster = SkImage::MakeRasterData(info, data, mStride);
}
}
if (raster) {
mImage = raster;
} else {
gfxCriticalError() << "Failed making Skia raster image for GPU surface";
}
}
#endif
SkPixmap pixmap;
if (!mImage->peekPixels(&pixmap)) {
gfxCriticalError() << "Failed accessing pixels for Skia raster image";
}
return reinterpret_cast<uint8_t*>(pixmap.writable_addr());
}
bool
SourceSurfaceSkia::InitFromGrTexture(GrTexture* aTexture,
const IntSize &aSize,
SurfaceFormat aFormat)
{
if (!aTexture) {
return false;
}
// Create a GPU pixelref wrapping the texture.
SkImageInfo imgInfo = MakeSkiaImageInfo(aSize, aFormat);
mBitmap.setInfo(imgInfo);
mBitmap.setPixelRef(new SkGrPixelRef(imgInfo, aTexture))->unref();
mSize = aSize;
mFormat = aFormat;
mStride = mBitmap.rowBytes();
return true;
}
bool
SourceSurfaceSkia::InitFromData(unsigned char* aData,
const IntSize &aSize,
int32_t aStride,
SurfaceFormat aFormat)
{
SkBitmap temp;
temp.setInfo(MakeSkiaImageInfo(aSize, aFormat), aStride);
temp.setPixels(aData);
if (!temp.copyTo(&mBitmap)) {
return false;
}
mSize = aSize;
mFormat = aFormat;
mStride = mBitmap.rowBytes();
return true;
}
bool
SourceSurfaceSkia::InitFromImage(sk_sp<SkImage> aImage,
SurfaceFormat aFormat,
DrawTargetSkia* aOwner)
{
if (!aImage) {
return false;
}
mSize = IntSize(aImage->width(), aImage->height());
// For the raster image case, we want to use the format and stride
// information that the underlying raster image is using, which is
// reliable.
// For the GPU case (for which peekPixels is false), we can't easily
// figure this information out. It is better to report the originally
// intended format and stride that we will convert to if this GPU
// image is ever read back into a raster image.
SkPixmap pixmap;
if (aImage->peekPixels(&pixmap)) {
mFormat =
aFormat != SurfaceFormat::UNKNOWN ?
aFormat :
SkiaColorTypeToGfxFormat(pixmap.colorType(), pixmap.alphaType());
mStride = pixmap.rowBytes();
} else if (aFormat != SurfaceFormat::UNKNOWN) {
mFormat = aFormat;
SkImageInfo info = MakeSkiaImageInfo(mSize, mFormat);
mStride = SkAlign4(info.minRowBytes());
} else {
return false;
}
mImage = aImage;
if (aOwner) {
mDrawTarget = aOwner;
}
return true;
}
bool
SourceSurfaceSkia::InitFromData(unsigned char* aData,
const IntSize &aSize,
int32_t aStride,
SurfaceFormat aFormat)
{
sk_sp<SkData> data = MakeSkData(aData, aSize, aStride);
if (!data) {
return false;
}
SkImageInfo info = MakeSkiaImageInfo(aSize, aFormat);
mImage = SkImage::MakeRasterData(info, data, aStride);
if (!mImage) {
return false;
}
mSize = aSize;
mFormat = aFormat;
mStride = aStride;
return true;
}
