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types/wlr_buffer: add buffer_get_drm_format helper function

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Steve Williams 2026-02-05 21:26:29 +04:00 • committed by Simon Ser
parent bb78861ca9
commit ef88246642
4 changed files with 32 additions and 22 deletions
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12
backend/x11/output.c
View file

@ -20,6 +20,7 @@
#include "backend/x11.h"
#include "util/time.h"
#include "types/wlr_buffer.h"
#include "types/wlr_output.h"
static const uint32_t SUPPORTED_OUTPUT_STATE =
@ -166,15 +167,8 @@ static bool output_test(struct wlr_output *wlr_output,
if (state->committed & WLR_OUTPUT_STATE_BUFFER) {
struct wlr_buffer *buffer = state->buffer;
struct wlr_dmabuf_attributes dmabuf_attrs;
struct wlr_shm_attributes shm_attrs;
uint32_t format = DRM_FORMAT_INVALID;
if (wlr_buffer_get_dmabuf(buffer, &dmabuf_attrs)) {
format = dmabuf_attrs.format;
} else if (wlr_buffer_get_shm(buffer, &shm_attrs)) {
format = shm_attrs.format;
}
if (format != x11->x11_format->drm) {
if (buffer_get_drm_format(buffer) != x11->x11_format->drm) {
wlr_log(WLR_DEBUG, "Unsupported buffer format");
return false;
}

6
include/types/wlr_buffer.h
View file

@ -65,4 +65,10 @@ struct wlr_client_buffer *wlr_client_buffer_create(struct wlr_buffer *buffer,
bool wlr_client_buffer_apply_damage(struct wlr_client_buffer *client_buffer,
struct wlr_buffer *next, const pixman_region32_t *damage);
/**
* Return the DRM format of the buffer. If this buffer isn't shared
* memory or a DMA-BUF, returns DRM_FORMAT_INVALID.
*/
uint32_t buffer_get_drm_format(struct wlr_buffer *buffer);
#endif

23
types/buffer/buffer.c
View file

@ -109,14 +109,11 @@ bool wlr_buffer_get_shm(struct wlr_buffer *buffer,
bool wlr_buffer_is_opaque(struct wlr_buffer *buffer) {
void *data;
uint32_t format;
uint32_t format = buffer_get_drm_format(buffer);
size_t stride;
struct wlr_dmabuf_attributes dmabuf;
struct wlr_shm_attributes shm;
if (wlr_buffer_get_dmabuf(buffer, &dmabuf)) {
format = dmabuf.format;
} else if (wlr_buffer_get_shm(buffer, &shm)) {
format = shm.format;
if (format != DRM_FORMAT_INVALID) {
// pass
} else if (wlr_buffer_begin_data_ptr_access(buffer,
WLR_BUFFER_DATA_PTR_ACCESS_READ, &data, &format, &stride)) {
bool opaque = false;
@ -135,3 +132,15 @@ bool wlr_buffer_is_opaque(struct wlr_buffer *buffer) {
return !pixel_format_has_alpha(format);
}
uint32_t buffer_get_drm_format(struct wlr_buffer *buffer) {
uint32_t format = DRM_FORMAT_INVALID;
struct wlr_dmabuf_attributes dmabuf;
struct wlr_shm_attributes shm;
if (wlr_buffer_get_dmabuf(buffer, &dmabuf)) {
format = dmabuf.format;
} else if (wlr_buffer_get_shm(buffer, &shm)) {
format = shm.format;
}
return format;
}

13
types/wlr_color_representation_v1.c
View file

@ -11,6 +11,7 @@
#include "color-representation-v1-protocol.h"
#include "render/pixel_format.h"
#include "types/wlr_buffer.h"
#include "util/mem.h"
#define WP_COLOR_REPRESENTATION_VERSION 1
@ -240,14 +241,14 @@ static void surface_synced_commit(struct wlr_surface_synced *synced) {
return;
}
struct wlr_dmabuf_attributes dmabuf;
if (!color_repr->surface->buffer ||
!wlr_buffer_get_dmabuf(&color_repr->surface->buffer->base, &dmabuf)) {
uint32_t drm_format = DRM_FORMAT_INVALID;
if (!color_repr->surface->buffer){
drm_format = buffer_get_drm_format(&color_repr->surface->buffer->base);
}
if (drm_format == DRM_FORMAT_INVALID) {
return;
}
bool is_ycbcr = pixel_format_is_ycbcr(dmabuf.format);
bool is_ycbcr = pixel_format_is_ycbcr(drm_format);
bool is_identity_full =
color_repr->current.coefficients == WP_COLOR_REPRESENTATION_SURFACE_V1_COEFFICIENTS_IDENTITY &&