static SkImage* create_rasterproc_image(RasterDataHolder* dataHolder) {
SkASSERT(dataHolder);
SkImageInfo info;
SkAutoTUnref<SkData> data(create_image_data(&info));
dataHolder->fData.reset(SkRef(data.get()));
return SkImage::NewFromRaster(info, data->data(), info.minRowBytes(),
RasterDataHolder::Release, dataHolder);
}
static SkImage* create_codec_image() {
SkImageInfo info;
SkAutoTUnref<SkData> data(create_image_data(&info));
SkBitmap bitmap;
bitmap.installPixels(info, data->writable_data(), info.minRowBytes());
SkAutoTUnref<SkData> src(
SkImageEncoder::EncodeData(bitmap, SkImageEncoder::kPNG_Type, 100));
return SkImage::NewFromEncoded(src);
}
static int
unoptimize_image(Gif_Stream *gfs, Gif_Image *gfi, uint16_t *screen)
{
unsigned size = gfs->screen_width * gfs->screen_height;
int used_transparent;
uint8_t *new_data = Gif_NewArray(uint8_t, size);
uint16_t *new_screen = screen;
if (!new_data) return 0;
/* Oops! May need to uncompress it */
Gif_UncompressImage(gfs, gfi);
Gif_ReleaseCompressedImage(gfi);
if (gfi->disposal == GIF_DISPOSAL_PREVIOUS) {
new_screen = Gif_NewArray(uint16_t, size);
if (!new_screen) return 0;
memcpy(new_screen, screen, size * sizeof(uint16_t));
}
put_image_in_screen(gfs, gfi, new_screen);
if (!create_image_data(gfs, gfi, new_screen, new_data, &used_transparent)) {
Gif_DeleteArray(new_data);
return 0;
}
if (gfi->disposal == GIF_DISPOSAL_PREVIOUS)
Gif_DeleteArray(new_screen);
else if (gfi->disposal == GIF_DISPOSAL_BACKGROUND)
put_background_in_screen(gfs, gfi, screen);
gfi->left = 0;
gfi->top = 0;
gfi->width = gfs->screen_width;
gfi->height = gfs->screen_height;
gfi->disposal = used_transparent;
Gif_SetUncompressedImage(gfi, new_data, Gif_Free, 0);
return 1;
}
static SkImage* create_data_image() {
SkImageInfo info;
SkAutoTUnref<SkData> data(create_image_data(&info));
return SkImage::NewRasterData(info, data, info.minRowBytes());
}