// CreateFrame() is used for both simple and animated images
void nsPNGDecoder::CreateFrame(png_uint_32 x_offset, png_uint_32 y_offset,
int32_t width, int32_t height,
gfx::SurfaceFormat format)
{
MOZ_ASSERT(HasSize());
if (format == gfx::SurfaceFormat::B8G8R8A8) {
PostHasTransparency();
}
// Our first full frame is automatically created by the image decoding
// infrastructure. Just use it as long as it matches up.
nsIntRect neededRect(x_offset, y_offset, width, height);
nsRefPtr<imgFrame> currentFrame = GetCurrentFrame();
if (!currentFrame->GetRect().IsEqualEdges(neededRect)) {
if (mNumFrames == 0) {
// We need padding on the first frame, which means that we don't draw into
// part of the image at all. Report that as transparency.
PostHasTransparency();
}
NeedNewFrame(mNumFrames, x_offset, y_offset, width, height, format);
} else if (mNumFrames != 0) {
NeedNewFrame(mNumFrames, x_offset, y_offset, width, height, format);
}
mFrameRect = neededRect;
MOZ_LOG(GetPNGDecoderAccountingLog(), LogLevel::Debug,
("PNGDecoderAccounting: nsPNGDecoder::CreateFrame -- created "
"image frame with %dx%d pixels in container %p",
width, height,
&mImage));
#ifdef PNG_APNG_SUPPORTED
if (png_get_valid(mPNG, mInfo, PNG_INFO_acTL)) {
mAnimInfo = AnimFrameInfo(mPNG, mInfo);
if (mAnimInfo.mDispose == DisposalMethod::CLEAR) {
// We may have to display the background under this image during
// animation playback, so we regard it as transparent.
PostHasTransparency();
}
}
#endif
}
//******************************************************************************
void
nsGIFDecoder2::BeginImageFrame(uint16_t aDepth)
{
MOZ_ASSERT(HasSize());
gfx::SurfaceFormat format;
if (mGIFStruct.is_transparent) {
format = gfx::SurfaceFormat::B8G8R8A8;
PostHasTransparency();
} else {
format = gfx::SurfaceFormat::B8G8R8X8;
}
// Use correct format, RGB for first frame, PAL for following frames
// and include transparency to allow for optimization of opaque images
if (mGIFStruct.images_decoded) {
// Image data is stored with original depth and palette
NeedNewFrame(mGIFStruct.images_decoded, mGIFStruct.x_offset,
mGIFStruct.y_offset, mGIFStruct.width, mGIFStruct.height,
format, aDepth);
} else {
nsRefPtr<imgFrame> currentFrame = GetCurrentFrame();
// Our first full frame is automatically created by the image decoding
// infrastructure. Just use it as long as it matches up.
if (!currentFrame->GetRect().IsEqualEdges(nsIntRect(mGIFStruct.x_offset,
mGIFStruct.y_offset,
mGIFStruct.width,
mGIFStruct.height))) {
// We need padding on the first frame, which means that we don't draw into
// part of the image at all. Report that as transparency.
PostHasTransparency();
// Regardless of depth of input, image is decoded into 24bit RGB
NeedNewFrame(mGIFStruct.images_decoded, mGIFStruct.x_offset,
mGIFStruct.y_offset, mGIFStruct.width, mGIFStruct.height,
format);
}
}
mCurrentFrameIndex = mGIFStruct.images_decoded;
}
//******************************************************************************
void nsGIFDecoder2::BeginImageFrame(uint16_t aDepth)
{
gfx::SurfaceFormat format;
if (mGIFStruct.is_transparent)
format = gfx::SurfaceFormat::B8G8R8A8;
else
format = gfx::SurfaceFormat::B8G8R8X8;
MOZ_ASSERT(HasSize());
// Use correct format, RGB for first frame, PAL for following frames
// and include transparency to allow for optimization of opaque images
if (mGIFStruct.images_decoded) {
// Image data is stored with original depth and palette
NeedNewFrame(mGIFStruct.images_decoded, mGIFStruct.x_offset,
mGIFStruct.y_offset, mGIFStruct.width, mGIFStruct.height,
format, aDepth);
}
// Our first full frame is automatically created by the image decoding
// infrastructure. Just use it as long as it matches up.
else if (!GetCurrentFrame()->GetRect().IsEqualEdges(nsIntRect(mGIFStruct.x_offset,
mGIFStruct.y_offset,
mGIFStruct.width,
mGIFStruct.height))) {
// Regardless of depth of input, image is decoded into 24bit RGB
NeedNewFrame(mGIFStruct.images_decoded, mGIFStruct.x_offset,
mGIFStruct.y_offset, mGIFStruct.width, mGIFStruct.height,
format);
} else {
// Our preallocated frame matches up, with the possible exception of alpha.
if (format == gfx::SurfaceFormat::B8G8R8X8) {
GetCurrentFrame()->SetHasNoAlpha();
}
}
mCurrentFrameIndex = mGIFStruct.images_decoded;
}
//******************************************************************************
void nsGIFDecoder2::BeginImageFrame(uint16_t aDepth)
{
gfxASurface::gfxImageFormat format;
if (mGIFStruct.is_transparent)
format = gfxASurface::ImageFormatARGB32;
else
format = gfxASurface::ImageFormatRGB24;
// Use correct format, RGB for first frame, PAL for following frames
// and include transparency to allow for optimization of opaque images
if (mGIFStruct.images_decoded) {
// Image data is stored with original depth and palette
NeedNewFrame(mGIFStruct.images_decoded, mGIFStruct.x_offset,
mGIFStruct.y_offset, mGIFStruct.width, mGIFStruct.height,
format, aDepth);
} else {
// Regardless of depth of input, image is decoded into 24bit RGB
NeedNewFrame(mGIFStruct.images_decoded, mGIFStruct.x_offset,
mGIFStruct.y_offset, mGIFStruct.width, mGIFStruct.height,
format);
}
mCurrentFrame = mGIFStruct.images_decoded;
}
// CreateFrame() is used for both simple and animated images
void nsPNGDecoder::CreateFrame(png_uint_32 x_offset, png_uint_32 y_offset,
int32_t width, int32_t height,
gfx::SurfaceFormat format)
{
// Our first full frame is automatically created by the image decoding
// infrastructure. Just use it as long as it matches up.
MOZ_ASSERT(HasSize());
if (mNumFrames != 0 ||
!GetCurrentFrame()->GetRect().IsEqualEdges(nsIntRect(x_offset, y_offset, width, height))) {
NeedNewFrame(mNumFrames, x_offset, y_offset, width, height, format);
} else if (mNumFrames == 0) {
// Our preallocated frame matches up, with the possible exception of alpha.
if (format == gfx::SurfaceFormat::B8G8R8X8) {
GetCurrentFrame()->SetHasNoAlpha();
}
}
mFrameRect.x = x_offset;
mFrameRect.y = y_offset;
mFrameRect.width = width;
mFrameRect.height = height;
PR_LOG(GetPNGDecoderAccountingLog(), PR_LOG_DEBUG,
("PNGDecoderAccounting: nsPNGDecoder::CreateFrame -- created "
"image frame with %dx%d pixels in container %p",
width, height,
&mImage));
mFrameHasNoAlpha = true;
#ifdef PNG_APNG_SUPPORTED
if (png_get_valid(mPNG, mInfo, PNG_INFO_acTL)) {
mAnimInfo = AnimFrameInfo(mPNG, mInfo);
}
#endif
}
