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render/gles2: set has_alpha for DMA-BUFs

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Use our internal pixel format table to figure out whether an
imported DMA-BUF has alpha.
This commit is contained in:
Simon Ser 2021-07-11 19:43:51 +02:00 committed by Simon Zeni
parent 9b70eab194
commit 9dba176e8d
1 changed files with 9 additions and 1 deletions
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10
render/gles2/texture.c
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@ -248,11 +248,19 @@ static struct wlr_texture *gles2_texture_from_dmabuf(
if (texture == NULL) {
return NULL;
}
texture->has_alpha = true;
texture->drm_format = DRM_FORMAT_INVALID; // texture can't be written anyways
texture->inverted_y =
(attribs->flags & WLR_DMABUF_ATTRIBUTES_FLAGS_Y_INVERT) != 0;
const struct wlr_pixel_format_info *drm_fmt =
drm_get_pixel_format_info(attribs->format);
if (drm_fmt != NULL) {
texture->has_alpha = drm_fmt->has_alpha;
} else {
// We don't know, assume the texture has an alpha channel
texture->has_alpha = true;
}
struct wlr_egl_context prev_ctx;
wlr_egl_save_context(&prev_ctx);
wlr_egl_make_current(renderer->egl);