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render/pass: accept fractional destination coordinates

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Signed-off-by: Loukas Agorgianitis <loukas@agorgianitis.com>
This commit is contained in:
Loukas Agorgianitis 2025-12-08 11:47:15 +02:00
parent 91c08d5a53
commit 5a49f2ae14
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GPG key ID: DDC6FA7D5BB332E6
13 changed files with 79 additions and 47 deletions
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14
render/pixman/pass.c
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@ -59,7 +59,7 @@ static void render_pass_add_texture(struct wlr_render_pass *wlr_pass,
.height = roundf(src_fbox.height),
};
struct wlr_box dst_box;
struct wlr_fbox dst_box;
wlr_render_texture_options_get_dst_box(options, &dst_box);
pixman_image_t *mask = NULL;
@ -125,8 +125,8 @@ static void render_pass_add_texture(struct wlr_render_pass *wlr_pass,
// it depends on the whether the rotation swapped width and height, which is why
// we use src_box_transformed instead of src_box.
pixman_transform_scale(&transform, NULL,
pixman_double_to_fixed(src_box_transformed.width / (double)dst_box.width),
pixman_double_to_fixed(src_box_transformed.height / (double)dst_box.height));
pixman_double_to_fixed(src_box_transformed.width / dst_box.width),
pixman_double_to_fixed(src_box_transformed.height / dst_box.height));
// pixman rotates about the origin which again leaves everything outside of the
// viewport. Translate the result so that its new top-left corner is back at the
@ -174,8 +174,8 @@ static void render_pass_add_texture(struct wlr_render_pass *wlr_pass,
pixman_image_composite32(op, texture->image, mask, buffer->image,
0, 0, // source x,y
0, 0, // mask x,y
dst_box.x, dst_box.y, // dest x,y
dst_box.width, dst_box.height // composite width,height
round(dst_box.x), round(dst_box.y), // dest x,y
round(dst_box.width), round(dst_box.height) // composite width,height
);
pixman_image_set_transform(texture->image, NULL);
@ -183,7 +183,7 @@ static void render_pass_add_texture(struct wlr_render_pass *wlr_pass,
// No transforms or crop needed, just a straight blit from the source
pixman_image_set_transform(texture->image, NULL);
pixman_image_composite32(op, texture->image, mask, buffer->image,
src_box.x, src_box.y, 0, 0, dst_box.x, dst_box.y,
src_box.x, src_box.y, 0, 0, round(dst_box.x), round(dst_box.y),
src_box.width, src_box.height);
}
@ -202,7 +202,7 @@ static void render_pass_add_rect(struct wlr_render_pass *wlr_pass,
const struct wlr_render_rect_options *options) {
struct wlr_pixman_render_pass *pass = get_render_pass(wlr_pass);
struct wlr_pixman_buffer *buffer = pass->buffer;
struct wlr_box box;
struct wlr_fbox box;
wlr_render_rect_options_get_box(options, pass->buffer->buffer, &box);
pixman_op_t op = get_pixman_blending(options->color.a == 1 ?