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render/pixman: implement preferred_read_format

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This commit is contained in:
Simon Zeni 2021-04-26 16:58:01 -04:00 committed by Simon Ser
parent 0411dc0663
commit 30706b71fb
3 changed files with 24 additions and 0 deletions
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1
include/render/pixman.h
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@ -46,6 +46,7 @@ struct wlr_pixman_texture {
};
pixman_format_code_t get_pixman_format_from_drm(uint32_t fmt);
uint32_t get_drm_format_from_pixman(pixman_format_code_t fmt);
const uint32_t *get_pixman_drm_formats(size_t *len);
#endif

11
render/pixman/pixel_format.c
View File

@ -49,6 +49,17 @@ pixman_format_code_t get_pixman_format_from_drm(uint32_t fmt) {
return 0;
}
uint32_t get_drm_format_from_pixman(pixman_format_code_t fmt) {
for (size_t i = 0; i < sizeof(formats) / sizeof(*formats); ++i) {
if (formats[i].pixman_format == fmt) {
return formats[i].drm_format;
}
}
wlr_log(WLR_ERROR, "pixman format 0x%"PRIX32" has no drm equivalent", fmt);
return DRM_FORMAT_INVALID;
}
const uint32_t *get_pixman_drm_formats(size_t *len) {
static uint32_t drm_formats[sizeof(formats) / sizeof(formats[0])];
*len = sizeof(formats) / sizeof(formats[0]);

12
render/pixman/renderer.c
View File

@ -369,6 +369,17 @@ static void pixman_destroy(struct wlr_renderer *wlr_renderer) {
free(renderer);
}
static uint32_t pixman_preferred_read_format(
struct wlr_renderer *wlr_renderer) {
struct wlr_pixman_renderer *renderer = get_renderer(wlr_renderer);
struct wlr_pixman_buffer *buffer = renderer->current_buffer;
pixman_format_code_t pixman_format = pixman_image_get_format(
buffer->image);
return get_drm_format_from_pixman(pixman_format);
}
static const struct wlr_renderer_impl renderer_impl = {
.begin = pixman_begin,
.clear = pixman_clear,
@ -380,6 +391,7 @@ static const struct wlr_renderer_impl renderer_impl = {
.texture_from_pixels = pixman_texture_from_pixels,
.bind_buffer = pixman_bind_buffer,
.destroy = pixman_destroy,
.preferred_read_format = pixman_preferred_read_format,
};
struct wlr_renderer *wlr_pixman_renderer_create(void) {