1 files changed, 45 insertions, 0 deletions
diff --git a/render/gles2/pixel_format.c b/render/gles2/pixel_format.c
new file mode 100644
index 00000000..a0b9d09f
--- /dev/null
+++ b/render/gles2/pixel_format.c
@@ -0,0 +1,45 @@
+#include <GLES2/gl2.h>
+#include <GLES2/gl2ext.h>
+#include "render/gles2.h"
+
+// Adapted from weston
+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,
+		.gl_format = GL_RGBA,
+		.gl_type = GL_UNSIGNED_BYTE,
+		.shader = &shaders.rgbx
+	},
+	{
+		.wl_format = WL_SHM_FORMAT_ABGR8888,
+		.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;
+}