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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;
/* Bits per pixels */
uint32_t bpp;
/* 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,
.opaque_substitute = DRM_FORMAT_INVALID,
.bpp = 32,
.has_alpha = false,
},
{
.drm_format = DRM_FORMAT_ARGB8888,
.opaque_substitute = DRM_FORMAT_XRGB8888,
.bpp = 32,
.has_alpha = true,
},
{
.drm_format = DRM_FORMAT_XBGR8888,
.opaque_substitute = DRM_FORMAT_INVALID,
.bpp = 32,
.has_alpha = false,
},
{
.drm_format = DRM_FORMAT_ABGR8888,
.opaque_substitute = DRM_FORMAT_XBGR8888,
.bpp = 32,
.has_alpha = true,
},
{
.drm_format = DRM_FORMAT_RGBX8888,
.opaque_substitute = DRM_FORMAT_INVALID,
.bpp = 32,
.has_alpha = false,
},
{
.drm_format = DRM_FORMAT_RGBA8888,
.opaque_substitute = DRM_FORMAT_RGBX8888,
.bpp = 32,
.has_alpha = true,
},
{
.drm_format = DRM_FORMAT_BGRX8888,
.opaque_substitute = DRM_FORMAT_INVALID,
.bpp = 32,
.has_alpha = false,
},
{
.drm_format = DRM_FORMAT_BGRA8888,
.opaque_substitute = DRM_FORMAT_BGRX8888,
.bpp = 32,
.has_alpha = true,
},
{
.drm_format = DRM_FORMAT_BGR888,
.opaque_substitute = DRM_FORMAT_INVALID,
.bpp = 24,
.has_alpha = false,
},
{
.drm_format = DRM_FORMAT_RGBX4444,
.opaque_substitute = DRM_FORMAT_INVALID,
.bpp = 16,
.has_alpha = false,
},
{
.drm_format = DRM_FORMAT_RGBA4444,
.opaque_substitute = DRM_FORMAT_RGBX4444,
.bpp = 16,
.has_alpha = true,
},
{
.drm_format = DRM_FORMAT_RGBX5551,
.opaque_substitute = DRM_FORMAT_INVALID,
.bpp = 16,
.has_alpha = false,
},
{
.drm_format = DRM_FORMAT_RGBA5551,
.opaque_substitute = DRM_FORMAT_RGBX5551,
.bpp = 16,
.has_alpha = true,
},
{
.drm_format = DRM_FORMAT_RGB565,
.opaque_substitute = DRM_FORMAT_INVALID,
.bpp = 16,
.has_alpha = false,
},
{
.drm_format = DRM_FORMAT_BGR565,
.opaque_substitute = DRM_FORMAT_INVALID,
.bpp = 16,
.has_alpha = false,
},
{
.drm_format = DRM_FORMAT_XRGB2101010,
.opaque_substitute = DRM_FORMAT_INVALID,
.bpp = 32,
.has_alpha = false,
},
{
.drm_format = DRM_FORMAT_ARGB2101010,
.opaque_substitute = DRM_FORMAT_XRGB2101010,
.bpp = 32,
.has_alpha = true,
},
{
.drm_format = DRM_FORMAT_XBGR2101010,
.opaque_substitute = DRM_FORMAT_INVALID,
.bpp = 32,
.has_alpha = false,
},
{
.drm_format = DRM_FORMAT_ABGR2101010,
.opaque_substitute = DRM_FORMAT_XBGR2101010,
.bpp = 32,
.has_alpha = true,
},
{
.drm_format = DRM_FORMAT_XBGR16161616F,
.opaque_substitute = DRM_FORMAT_INVALID,
.bpp = 64,
.has_alpha = false,
},
{
.drm_format = DRM_FORMAT_ABGR16161616F,
.opaque_substitute = DRM_FORMAT_XBGR16161616F,
.bpp = 64,
.has_alpha = true,
},
{
.drm_format = DRM_FORMAT_XBGR16161616,
.opaque_substitute = DRM_FORMAT_INVALID,
.bpp = 64,
.has_alpha = false,
},
{
.drm_format = DRM_FORMAT_ABGR16161616,
.opaque_substitute = DRM_FORMAT_XBGR16161616,
.bpp = 64,
.has_alpha = true,
},
};
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;
}
}
struct wlr_gles2_pixel_format {
uint32_t drm_format;
// optional field, if empty then internalformat = format
GLint gl_internalformat;
GLint gl_format, gl_type;
bool has_alpha;
};
static const struct wlr_gles2_pixel_format formats[] = {
{
.drm_format = DRM_FORMAT_ARGB8888,
.gl_format = GL_BGRA_EXT,
.gl_type = GL_UNSIGNED_BYTE,
.has_alpha = true,
},
{
.drm_format = DRM_FORMAT_XRGB8888,
.gl_format = GL_BGRA_EXT,
.gl_type = GL_UNSIGNED_BYTE,
.has_alpha = false,
},
{
.drm_format = DRM_FORMAT_XBGR8888,
.gl_format = GL_RGBA,
.gl_type = GL_UNSIGNED_BYTE,
.has_alpha = false,
},
{
.drm_format = DRM_FORMAT_ABGR8888,
.gl_format = GL_RGBA,
.gl_type = GL_UNSIGNED_BYTE,
.has_alpha = true,
},
{
.drm_format = DRM_FORMAT_BGR888,
.gl_format = GL_RGB,
.gl_type = GL_UNSIGNED_BYTE,
.has_alpha = false,
},
#if __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
{
.drm_format = DRM_FORMAT_RGBX4444,
.gl_format = GL_RGBA,
.gl_type = GL_UNSIGNED_SHORT_4_4_4_4,
.has_alpha = false,
},
{
.drm_format = DRM_FORMAT_RGBA4444,
.gl_format = GL_RGBA,
.gl_type = GL_UNSIGNED_SHORT_4_4_4_4,
.has_alpha = true,
},
{
.drm_format = DRM_FORMAT_RGBX5551,
.gl_format = GL_RGBA,
.gl_type = GL_UNSIGNED_SHORT_5_5_5_1,
.has_alpha = false,
},
{
.drm_format = DRM_FORMAT_RGBA5551,
.gl_format = GL_RGBA,
.gl_type = GL_UNSIGNED_SHORT_5_5_5_1,
.has_alpha = true,
},
{
.drm_format = DRM_FORMAT_RGB565,
.gl_format = GL_RGB,
.gl_type = GL_UNSIGNED_SHORT_5_6_5,
.has_alpha = false,
},
{
.drm_format = DRM_FORMAT_XBGR2101010,
.gl_format = GL_RGBA,
.gl_type = GL_UNSIGNED_INT_2_10_10_10_REV_EXT,
.has_alpha = false,
},
{
.drm_format = DRM_FORMAT_ABGR2101010,
.gl_format = GL_RGBA,
.gl_type = GL_UNSIGNED_INT_2_10_10_10_REV_EXT,
.has_alpha = true,
},
{
.drm_format = DRM_FORMAT_XBGR16161616F,
.gl_format = GL_RGBA,
.gl_type = GL_HALF_FLOAT_OES,
.has_alpha = false,
},
{
.drm_format = DRM_FORMAT_ABGR16161616F,
.gl_format = GL_RGBA,
.gl_type = GL_HALF_FLOAT_OES,
.has_alpha = true,
},
{
.drm_format = DRM_FORMAT_XBGR16161616,
.gl_internalformat = GL_RGBA16_EXT,
.gl_format = GL_RGBA,
.gl_type = GL_UNSIGNED_SHORT,
.has_alpha = false,
},
{
.drm_format = DRM_FORMAT_ABGR16161616,
.gl_internalformat = GL_RGBA16_EXT,
.gl_format = GL_RGBA,
.gl_type = GL_UNSIGNED_SHORT,
.has_alpha = true,
},
#endif
};
static const struct wlr_gles2_pixel_format* get_gles2_format_from_drm(uint32_t fmt) {
for (size_t i = 0; i < sizeof(formats) / sizeof(*formats); ++i) {
if (formats[i].drm_format == fmt) {
return &formats[i];
}
}
return NULL;
}
#endif
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