diff options
| author | Simon Ser <contact@emersion.fr> | 2023-05-02 21:32:51 +0200 |
|---|---|---|
| committer | Simon Ser <contact@emersion.fr> | 2023-05-02 21:32:51 +0200 |
| commit | a93fc8afd60646243ee635b443fc2a17e2d97a18 (patch) | |
| tree | f0336118d0f2b2312bf0886c836ca82a718d2c96 /render/pixman | |
| parent | 6b7d1d732ab5c548480729ef3c227a71c7b18a89 (diff) | |
render: introduce blend mode
Allow callers to pick the blend mode when rendering a rect. The
"none" mode can be used to disable blending and clear rects.
Diffstat (limited to 'render/pixman')
| -rw-r--r-- | render/pixman/pass.c | 13 |
1 files changed, 12 insertions, 1 deletions
diff --git a/render/pixman/pass.c b/render/pixman/pass.c index f6e7db0d..3f0927ee 100644 --- a/render/pixman/pass.c +++ b/render/pixman/pass.c @@ -143,6 +143,17 @@ static void render_pass_add_rect(struct wlr_render_pass *wlr_pass, struct wlr_pixman_buffer *buffer = pass->buffer; struct wlr_box box = options->box; + pixman_op_t op = 0; + switch (options->blend_mode) { + case WLR_RENDER_BLEND_MODE_PREMULTIPLIED: + op = options->color.a == 1 ? PIXMAN_OP_SRC : PIXMAN_OP_OVER; + break; + case WLR_RENDER_BLEND_MODE_NONE: + op = PIXMAN_OP_SRC; + break; + } + assert(op != 0); + struct pixman_color color = { .red = options->color.r * 0xFFFF, .green = options->color.g * 0xFFFF, @@ -153,7 +164,7 @@ static void render_pass_add_rect(struct wlr_render_pass *wlr_pass, pixman_image_t *fill = pixman_image_create_solid_fill(&color); pixman_image_set_clip_region32(buffer->image, (pixman_region32_t *)options->clip); - pixman_image_composite32(PIXMAN_OP_OVER, fill, NULL, buffer->image, + pixman_image_composite32(op, fill, NULL, buffer->image, 0, 0, 0, 0, box.x, box.y, box.width, box.height); pixman_image_set_clip_region32(buffer->image, NULL); |