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render/pixel-format: Move has_alpha into it's own array

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Some opaque pixel formats (nv12, p010) require per-plane bytes_per_block
info. However, it doesn't make sense to store them in
wlr_pixel_format_info, as they will never be useful (currently, this
info is used for shm, which doesn't have a concept of multi-planar
buffers.)

Let's define a separate array and function for determining whether a
pixel format has alpha.
This commit is contained in:
Leo Li 2024-01-31 12:30:16 -05:00
parent 3a91dc1b48
commit 71fb55f3bf
5 changed files with 46 additions and 28 deletions
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8
include/render/pixel_format.h
View file

@ -27,9 +27,6 @@ struct wlr_pixel_format_info {
uint32_t bytes_per_block;
/* Size of a block in pixels (zero for 1×1) */
uint32_t block_width, block_height;
/* True if the format has an alpha channel */
bool has_alpha;
};
/**
@ -61,4 +58,9 @@ uint32_t convert_wl_shm_format_to_drm(enum wl_shm_format fmt);
*/
enum wl_shm_format convert_drm_format_to_wl_shm(uint32_t fmt);
/**
* Return true if the DRM FourCC fmt has an alpha channel, false otherwise.
*/
bool pixel_format_has_alpha(uint32_t fmt);
#endif

5
render/gles2/texture.c
View file

@ -381,13 +381,10 @@ static struct wlr_texture *gles2_texture_from_dmabuf(
return NULL;
}
const struct wlr_pixel_format_info *drm_fmt =
drm_get_pixel_format_info(attribs->format);
texture->target = buffer->external_only ? GL_TEXTURE_EXTERNAL_OES : GL_TEXTURE_2D;
texture->buffer = buffer;
texture->drm_format = DRM_FORMAT_INVALID; // texture can't be written anyways
texture->has_alpha = drm_fmt ? drm_fmt->has_alpha : true;
texture->has_alpha = pixel_format_has_alpha(attribs->format);
struct wlr_egl_context prev_ctx;
wlr_egl_save_context(&prev_ctx);

51
render/pixel_format.c
View file

@ -12,7 +12,6 @@ static const struct wlr_pixel_format_info pixel_format_info[] = {
.drm_format = DRM_FORMAT_ARGB8888,
.opaque_substitute = DRM_FORMAT_XRGB8888,
.bytes_per_block = 4,
.has_alpha = true,
},
{
.drm_format = DRM_FORMAT_XBGR8888,
@ -22,7 +21,6 @@ static const struct wlr_pixel_format_info pixel_format_info[] = {
.drm_format = DRM_FORMAT_ABGR8888,
.opaque_substitute = DRM_FORMAT_XBGR8888,
.bytes_per_block = 4,
.has_alpha = true,
},
{
.drm_format = DRM_FORMAT_RGBX8888,
@ -32,7 +30,6 @@ static const struct wlr_pixel_format_info pixel_format_info[] = {
.drm_format = DRM_FORMAT_RGBA8888,
.opaque_substitute = DRM_FORMAT_RGBX8888,
.bytes_per_block = 4,
.has_alpha = true,
},
{
.drm_format = DRM_FORMAT_BGRX8888,
@ -42,7 +39,6 @@ static const struct wlr_pixel_format_info pixel_format_info[] = {
.drm_format = DRM_FORMAT_BGRA8888,
.opaque_substitute = DRM_FORMAT_BGRX8888,
.bytes_per_block = 4,
.has_alpha = true,
},
{
.drm_format = DRM_FORMAT_R8,
@ -68,7 +64,6 @@ static const struct wlr_pixel_format_info pixel_format_info[] = {
.drm_format = DRM_FORMAT_RGBA4444,
.opaque_substitute = DRM_FORMAT_RGBX4444,
.bytes_per_block = 2,
.has_alpha = true,
},
{
.drm_format = DRM_FORMAT_BGRX4444,
@ -78,7 +73,6 @@ static const struct wlr_pixel_format_info pixel_format_info[] = {
.drm_format = DRM_FORMAT_BGRA4444,
.opaque_substitute = DRM_FORMAT_BGRX4444,
.bytes_per_block = 2,
.has_alpha = true,
},
{
.drm_format = DRM_FORMAT_RGBX5551,
@ -88,7 +82,6 @@ static const struct wlr_pixel_format_info pixel_format_info[] = {
.drm_format = DRM_FORMAT_RGBA5551,
.opaque_substitute = DRM_FORMAT_RGBX5551,
.bytes_per_block = 2,
.has_alpha = true,
},
{
.drm_format = DRM_FORMAT_BGRX5551,
@ -98,7 +91,6 @@ static const struct wlr_pixel_format_info pixel_format_info[] = {
.drm_format = DRM_FORMAT_BGRA5551,
.opaque_substitute = DRM_FORMAT_BGRX5551,
.bytes_per_block = 2,
.has_alpha = true,
},
{
.drm_format = DRM_FORMAT_XRGB1555,
@ -108,7 +100,6 @@ static const struct wlr_pixel_format_info pixel_format_info[] = {
.drm_format = DRM_FORMAT_ARGB1555,
.opaque_substitute = DRM_FORMAT_XRGB1555,
.bytes_per_block = 2,
.has_alpha = true,
},
{
.drm_format = DRM_FORMAT_RGB565,
@ -126,7 +117,6 @@ static const struct wlr_pixel_format_info pixel_format_info[] = {
.drm_format = DRM_FORMAT_ARGB2101010,
.opaque_substitute = DRM_FORMAT_XRGB2101010,
.bytes_per_block = 4,
.has_alpha = true,
},
{
.drm_format = DRM_FORMAT_XBGR2101010,
@ -136,7 +126,6 @@ static const struct wlr_pixel_format_info pixel_format_info[] = {
.drm_format = DRM_FORMAT_ABGR2101010,
.opaque_substitute = DRM_FORMAT_XBGR2101010,
.bytes_per_block = 4,
.has_alpha = true,
},
{
.drm_format = DRM_FORMAT_XBGR16161616F,
@ -146,7 +135,6 @@ static const struct wlr_pixel_format_info pixel_format_info[] = {
.drm_format = DRM_FORMAT_ABGR16161616F,
.opaque_substitute = DRM_FORMAT_XBGR16161616F,
.bytes_per_block = 8,
.has_alpha = true,
},
{
.drm_format = DRM_FORMAT_XBGR16161616,
@ -156,7 +144,6 @@ static const struct wlr_pixel_format_info pixel_format_info[] = {
.drm_format = DRM_FORMAT_ABGR16161616,
.opaque_substitute = DRM_FORMAT_XBGR16161616,
.bytes_per_block = 8,
.has_alpha = true,
},
{
.drm_format = DRM_FORMAT_YVYU,
@ -172,9 +159,38 @@ static const struct wlr_pixel_format_info pixel_format_info[] = {
},
};
static const uint32_t opaque_pixel_formats[] = {
DRM_FORMAT_XRGB8888,
DRM_FORMAT_XBGR8888,
DRM_FORMAT_RGBX8888,
DRM_FORMAT_BGRX8888,
DRM_FORMAT_R8,
DRM_FORMAT_GR88,
DRM_FORMAT_RGB888,
DRM_FORMAT_BGR888,
DRM_FORMAT_RGBX4444,
DRM_FORMAT_BGRX4444,
DRM_FORMAT_RGBX5551,
DRM_FORMAT_BGRX5551,
DRM_FORMAT_XRGB1555,
DRM_FORMAT_RGB565,
DRM_FORMAT_BGR565,
DRM_FORMAT_XRGB2101010,
DRM_FORMAT_XBGR2101010,
DRM_FORMAT_XBGR16161616F,
DRM_FORMAT_XBGR16161616,
DRM_FORMAT_YVYU,
DRM_FORMAT_VYUY,
DRM_FORMAT_NV12,
DRM_FORMAT_P010,
};
static const size_t pixel_format_info_size =
sizeof(pixel_format_info) / sizeof(pixel_format_info[0]);
static const size_t opaque_pixel_formats_size =
sizeof(opaque_pixel_formats) / sizeof(opaque_pixel_formats[0]);
const struct wlr_pixel_format_info *drm_get_pixel_format_info(uint32_t fmt) {
for (size_t i = 0; i < pixel_format_info_size; ++i) {
if (pixel_format_info[i].drm_format == fmt) {
@ -250,3 +266,12 @@ bool pixel_format_info_check_stride(const struct wlr_pixel_format_info *fmt,
return true;
}
bool pixel_format_has_alpha(uint32_t fmt) {
for (size_t i = 0; i < opaque_pixel_formats_size; i++) {
if (fmt == opaque_pixel_formats[i]) {
return false;
}
}
return true;
}

2
render/vulkan/texture.c
View file

@ -382,7 +382,7 @@ static void texture_set_format(struct wlr_vk_texture *texture,
const struct wlr_pixel_format_info *format_info =
drm_get_pixel_format_info(format->drm);
if (format_info != NULL) {
texture->has_alpha = format_info->has_alpha;
texture->has_alpha = pixel_format_has_alpha(format->drm);
} else {
// We don't have format info for multi-planar formats
assert(texture->format->is_ycbcr);

8
types/buffer/buffer.c
View file

@ -116,11 +116,5 @@ bool buffer_is_opaque(struct wlr_buffer *buffer) {
return false;
}
const struct wlr_pixel_format_info *format_info =
drm_get_pixel_format_info(format);
if (format_info == NULL) {
return false;
}
return !format_info->has_alpha;
return !pixel_format_has_alpha(format);
}