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fixup! backend: add new backend interface according to #1191

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Yuxuan Shui 2024-04-02 20:21:44 +01:00
parent 3088cbc770
commit ab95f208b7
1 changed files with 4 additions and 0 deletions
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4
src/backend/backend.h
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@ -121,6 +121,9 @@ typedef struct {
struct backend_mask { struct backend_mask {
/// Mask image, can be NULL. /// Mask image, can be NULL.
///
/// Mask image must be an image that was created with the `BACKEND_IMAGE_FORMAT_MASK`
/// format. Using an image with a wrong format as mask is undefined behavior.
image_handle image; image_handle image;
/// Clip region, in source image's coordinate. /// Clip region, in source image's coordinate.
region_t region; region_t region;
@ -175,6 +178,7 @@ struct backend_blit_args {
enum backend_image_format { enum backend_image_format {
/// A format that can be used for normal rendering, and binding /// A format that can be used for normal rendering, and binding
/// X pixmaps. /// X pixmaps.
/// Images created with `bind_pixmap` have this format automatically.
BACKEND_IMAGE_FORMAT_PIXMAP, BACKEND_IMAGE_FORMAT_PIXMAP,
/// A format that can be used for masks. /// A format that can be used for masks.
BACKEND_IMAGE_FORMAT_MASK, BACKEND_IMAGE_FORMAT_MASK,