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#include <GLES2/gl2.h>
#include <GLES2/gl2ext.h>
#include "render/gles2.h"
/*
* The wayland formats are little endian while the GL formats are big endian,
* so WL_SHM_FORMAT_ARGB8888 is actually compatible with GL_BGRA_EXT.
*/
struct pixel_format formats[] = {
{
.wl_format = WL_SHM_FORMAT_ARGB8888,
.depth = 32,
.bpp = 32,
.gl_format = GL_BGRA_EXT,
.gl_type = GL_UNSIGNED_BYTE,
.shader = &shaders.rgba
},
{
.wl_format = WL_SHM_FORMAT_XRGB8888,
.depth = 24,
.bpp = 32,
.gl_format = GL_BGRA_EXT,
.gl_type = GL_UNSIGNED_BYTE,
.shader = &shaders.rgbx
},
{
.wl_format = WL_SHM_FORMAT_XBGR8888,
.depth = 24,
.bpp = 32,
.gl_format = GL_RGBA,
.gl_type = GL_UNSIGNED_BYTE,
.shader = &shaders.rgbx
},
{
.wl_format = WL_SHM_FORMAT_ABGR8888,
.depth = 32,
.bpp = 32,
.gl_format = GL_RGBA,
.gl_type = GL_UNSIGNED_BYTE,
.shader = &shaders.rgba
},
};
// TODO: more pixel formats
const struct pixel_format *gl_format_for_wl_format(enum wl_shm_format fmt) {
for (size_t i = 0; i < sizeof(formats) / sizeof(*formats); ++i) {
if (formats[i].wl_format == fmt) {
return &formats[i];
}
}
return NULL;
}
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