render/gles2: move list of supported WL formats to pixel_format.c

include/render/gles2.h

@@ -21,6 +21,7 @@ struct gles2_pixel_format {
 	uint32_t wl_format;
 	GLint gl_format, gl_type;
 	int depth, bpp;
+	bool has_alpha;
 };
 
 struct wlr_gles2_renderer {
@@ -48,6 +49,7 @@ struct wlr_gles2_texture {
 };
 
 const struct gles2_pixel_format *gles2_format_from_wl(enum wl_shm_format fmt);
+const enum wl_shm_format *gles2_formats(size_t *len);
 
 struct wlr_texture *gles2_texture_create();
 struct wlr_gles2_texture *gles2_get_texture(struct wlr_texture *wlr_texture);

render/gles2/pixel_format.c

@@ -6,13 +6,14 @@
 * 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 gles2_pixel_format formats[] = {
+static const struct gles2_pixel_format formats[] = {
 	{
 		.wl_format = WL_SHM_FORMAT_ARGB8888,
 		.depth = 32,
 		.bpp = 32,
 		.gl_format = GL_BGRA_EXT,
 		.gl_type = GL_UNSIGNED_BYTE,
+		.has_alpha = true,
 	},
 	{
 		.wl_format = WL_SHM_FORMAT_XRGB8888,
@@ -20,6 +21,7 @@ struct gles2_pixel_format formats[] = {
 		.bpp = 32,
 		.gl_format = GL_BGRA_EXT,
 		.gl_type = GL_UNSIGNED_BYTE,
+		.has_alpha = false,
 	},
 	{
 		.wl_format = WL_SHM_FORMAT_XBGR8888,
@@ -27,6 +29,7 @@ struct gles2_pixel_format formats[] = {
 		.bpp = 32,
 		.gl_format = GL_RGBA,
 		.gl_type = GL_UNSIGNED_BYTE,
+		.has_alpha = false,
 	},
 	{
 		.wl_format = WL_SHM_FORMAT_ABGR8888,
@@ -34,8 +37,17 @@ struct gles2_pixel_format formats[] = {
 		.bpp = 32,
 		.gl_format = GL_RGBA,
 		.gl_type = GL_UNSIGNED_BYTE,
+		.has_alpha = true,
 	},
 };
+
+static const enum wl_shm_format wl_formats[] = {
+	WL_SHM_FORMAT_ARGB8888,
+	WL_SHM_FORMAT_XRGB8888,
+	WL_SHM_FORMAT_ABGR8888,
+	WL_SHM_FORMAT_XBGR8888,
+};
+
 // TODO: more pixel formats
 
 const struct gles2_pixel_format *gles2_format_from_wl(enum wl_shm_format fmt) {
@@ -46,3 +58,8 @@ const struct gles2_pixel_format *gles2_format_from_wl(enum wl_shm_format fmt) {
 	}
 	return NULL;
 }
+
+const enum wl_shm_format *gles2_formats(size_t *len) {
+	*len = sizeof(wl_formats) / sizeof(wl_formats[0]);
+	return wl_formats;
+}

render/gles2/renderer.c

@@ -179,16 +179,9 @@ static void gles2_render_ellipse(struct wlr_renderer *wlr_renderer,
 	GLES2_DEBUG_POP;
 }
 
-static const enum wl_shm_format *gles2_formats(
-		struct wlr_renderer *renderer, size_t *len) {
-	static const enum wl_shm_format formats[] = {
-		WL_SHM_FORMAT_ARGB8888,
-		WL_SHM_FORMAT_XRGB8888,
-		WL_SHM_FORMAT_ABGR8888,
-		WL_SHM_FORMAT_XBGR8888,
-	};
-	*len = sizeof(formats) / sizeof(formats[0]);
-	return formats;
+static const enum wl_shm_format *gles2_renderer_formats(
+		struct wlr_renderer *wlr_renderer, size_t *len) {
+	return gles2_formats(len);
 }
 
 static bool gles2_buffer_is_drm(struct wlr_renderer *wlr_renderer,
@@ -266,7 +259,7 @@ static const struct wlr_renderer_impl renderer_impl = {
 	.render_texture_with_matrix = gles2_render_texture_with_matrix,
 	.render_quad = gles2_render_quad,
 	.render_ellipse = gles2_render_ellipse,
-	.formats = gles2_formats,
+	.formats = gles2_renderer_formats,
 	.buffer_is_drm = gles2_buffer_is_drm,
 	.read_pixels = gles2_read_pixels,
 	.format_supported = gles2_format_supported,