diff options
| -rw-r--r-- | Libraries/LibGfx/GIFLoader.cpp | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/Libraries/LibGfx/GIFLoader.cpp b/Libraries/LibGfx/GIFLoader.cpp index 15edb35c59..12f0d376a1 100644 --- a/Libraries/LibGfx/GIFLoader.cpp +++ b/Libraries/LibGfx/GIFLoader.cpp @@ -30,6 +30,7 @@ #include <AK/MappedFile.h> #include <AK/NonnullOwnPtrVector.h> #include <LibGfx/GIFLoader.h> +#include <LibGfx/Painter.h> #include <math.h> #include <stdio.h> #include <string.h> @@ -63,6 +64,11 @@ struct ImageDescriptor { u16 duration { 0 }; bool transparent { false }; bool user_input { false }; + + const IntRect rect() const + { + return { this->x, this->y, this->width, this->height }; + } }; struct LogicalScreen { @@ -299,7 +305,8 @@ static bool decode_frame(GIFLoadingContext& context, size_t frame_index) const auto previous_image_disposal_method = i > 0 ? context.images.at(i - 1).disposal_method : ImageDescriptor::DisposalMethod::None; if (previous_image_disposal_method == ImageDescriptor::DisposalMethod::RestoreBackground) { - context.frame_buffer->fill(Color(Color::NamedColor::Transparent)); + Painter painter(*context.frame_buffer); + painter.clear_rect(context.images.at(i - 1).rect(), Color::Transparent); } else if (i > 1 && previous_image_disposal_method == ImageDescriptor::DisposalMethod::RestorePrevious) { // TODO: tricky as it potentially requires remembering _all_ previous frames. // Luckily it seems GIFs with this mode are rare in the wild. |