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#include <GLES2/gl2ext.h>
#ifndef DRM_WLR_FUNCS
#define DRM_WLR_FUNCS
struct wlr_pixel_format_info {
uint32_t drm_format;
/* Equivalent of the format if it has an alpha channel,
* DRM_FORMAT_INVALID (0) if NA
*/
uint32_t opaque_substitute;
/* Bytes per block (including padding) */
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;
};
static const struct wlr_pixel_format_info pixel_format_info[] = {
{
.drm_format = DRM_FORMAT_XRGB8888,
.bytes_per_block = 4,
},
{
.drm_format = DRM_FORMAT_ARGB8888,
.opaque_substitute = DRM_FORMAT_XRGB8888,
.bytes_per_block = 4,
.has_alpha = true,
},
{
.drm_format = DRM_FORMAT_XBGR8888,
.bytes_per_block = 4,
},
{
.drm_format = DRM_FORMAT_ABGR8888,
.opaque_substitute = DRM_FORMAT_XBGR8888,
.bytes_per_block = 4,
.has_alpha = true,
},
{
.drm_format = DRM_FORMAT_RGBX8888,
.bytes_per_block = 4,
},
{
.drm_format = DRM_FORMAT_RGBA8888,
.opaque_substitute = DRM_FORMAT_RGBX8888,
.bytes_per_block = 4,
.has_alpha = true,
},
{
.drm_format = DRM_FORMAT_BGRX8888,
.bytes_per_block = 4,
},
{
.drm_format = DRM_FORMAT_BGRA8888,
.opaque_substitute = DRM_FORMAT_BGRX8888,
.bytes_per_block = 4,
.has_alpha = true,
},
{
.drm_format = DRM_FORMAT_R8,
.bytes_per_block = 1,
},
{
.drm_format = DRM_FORMAT_GR88,
.bytes_per_block = 2,
},
{
.drm_format = DRM_FORMAT_RGB888,
.bytes_per_block = 3,
},
{
.drm_format = DRM_FORMAT_BGR888,
.bytes_per_block = 3,
},
{
.drm_format = DRM_FORMAT_RGBX4444,
.bytes_per_block = 2,
},
{
.drm_format = DRM_FORMAT_RGBA4444,
.opaque_substitute = DRM_FORMAT_RGBX4444,
.bytes_per_block = 2,
.has_alpha = true,
},
{
.drm_format = DRM_FORMAT_BGRX4444,
.bytes_per_block = 2,
},
{
.drm_format = DRM_FORMAT_BGRA4444,
.opaque_substitute = DRM_FORMAT_BGRX4444,
.bytes_per_block = 2,
.has_alpha = true,
},
{
.drm_format = DRM_FORMAT_RGBX5551,
.bytes_per_block = 2,
},
{
.drm_format = DRM_FORMAT_RGBA5551,
.opaque_substitute = DRM_FORMAT_RGBX5551,
.bytes_per_block = 2,
.has_alpha = true,
},
{
.drm_format = DRM_FORMAT_BGRX5551,
.bytes_per_block = 2,
},
{
.drm_format = DRM_FORMAT_BGRA5551,
.opaque_substitute = DRM_FORMAT_BGRX5551,
.bytes_per_block = 2,
.has_alpha = true,
},
{
.drm_format = DRM_FORMAT_XRGB1555,
.bytes_per_block = 2,
},
{
.drm_format = DRM_FORMAT_ARGB1555,
.opaque_substitute = DRM_FORMAT_XRGB1555,
.bytes_per_block = 2,
.has_alpha = true,
},
{
.drm_format = DRM_FORMAT_RGB565,
.bytes_per_block = 2,
},
{
.drm_format = DRM_FORMAT_BGR565,
.bytes_per_block = 2,
},
{
.drm_format = DRM_FORMAT_XRGB2101010,
.bytes_per_block = 4,
},
{
.drm_format = DRM_FORMAT_ARGB2101010,
.opaque_substitute = DRM_FORMAT_XRGB2101010,
.bytes_per_block = 4,
.has_alpha = true,
},
{
.drm_format = DRM_FORMAT_XBGR2101010,
.bytes_per_block = 4,
},
{
.drm_format = DRM_FORMAT_ABGR2101010,
.opaque_substitute = DRM_FORMAT_XBGR2101010,
.bytes_per_block = 4,
.has_alpha = true,
},
{
.drm_format = DRM_FORMAT_XBGR16161616F,
.bytes_per_block = 8,
},
{
.drm_format = DRM_FORMAT_ABGR16161616F,
.opaque_substitute = DRM_FORMAT_XBGR16161616F,
.bytes_per_block = 8,
.has_alpha = true,
},
{
.drm_format = DRM_FORMAT_XBGR16161616,
.bytes_per_block = 8,
},
{
.drm_format = DRM_FORMAT_ABGR16161616,
.opaque_substitute = DRM_FORMAT_XBGR16161616,
.bytes_per_block = 8,
.has_alpha = true,
},
{
.drm_format = DRM_FORMAT_YVYU,
.bytes_per_block = 4,
.block_width = 2,
.block_height = 1,
},
{
.drm_format = DRM_FORMAT_VYUY,
.bytes_per_block = 4,
.block_width = 2,
.block_height = 1,
},
};
static const size_t pixel_format_info_size = sizeof(pixel_format_info) / sizeof(pixel_format_info[0]);
static 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) {
return &pixel_format_info[i];
}
}
return NULL;
}
/*static uint32_t convert_wl_shm_format_to_drm(enum wl_shm_format fmt) {
switch (fmt) {
case WL_SHM_FORMAT_XRGB8888: return DRM_FORMAT_XRGB8888;
case WL_SHM_FORMAT_ARGB8888: return DRM_FORMAT_ARGB8888;
default: return (uint32_t)fmt;
}
}*/
static enum wl_shm_format convert_drm_format_to_wl_shm(uint32_t fmt) {
switch (fmt) {
case DRM_FORMAT_XRGB8888: return WL_SHM_FORMAT_XRGB8888;
case DRM_FORMAT_ARGB8888: return WL_SHM_FORMAT_ARGB8888;
default: return (enum wl_shm_format)fmt;
}
}
static uint32_t pixel_format_info_pixels_per_block(const struct wlr_pixel_format_info* info) {
uint32_t pixels = info->block_width * info->block_height;
return pixels > 0 ? pixels : 1;
}
static int32_t div_round_up(int32_t dividend, int32_t divisor) {
int32_t quotient = dividend / divisor;
if (dividend % divisor != 0) {
quotient++;
}
return quotient;
}
static int32_t pixel_format_info_min_stride(const wlr_pixel_format_info* fmt, int32_t width) {
int32_t pixels_per_block = (int32_t)pixel_format_info_pixels_per_block(fmt);
int32_t bytes_per_block = (int32_t)fmt->bytes_per_block;
if (width > INT32_MAX / bytes_per_block) {
wlr_log(WLR_DEBUG, "Invalid width %d (overflow)", width);
return 0;
}
return div_round_up(width * bytes_per_block, pixels_per_block);
}
#endif
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