[PATCH weston 3/5] gl-renderer: always enable unpack subimage and RG textures in ES3 contexts

[Arnaud Vrac]

From: Arnaud Vrac <avrac at freebox.fr>

The GL_EXT_unpack_subimage and GL_EXT_texture_rg are part of the core ES
3.0 specification, so also check the GL driver version in addition to
the extension string to determine if those features are supported.
---
 libweston/gl-renderer.c | 10 ++++++----
 1 file changed, 6 insertions(+), 4 deletions(-)

diff --git a/libweston/gl-renderer.c b/libweston/gl-renderer.c
index e237edf2..3dce8c2f 100644
--- a/libweston/gl-renderer.c
+++ b/libweston/gl-renderer.c
@@ -3202,9 +3202,6 @@ gl_renderer_setup_egl_extensions(struct weston_compositor *ec)
 		gr->has_dmabuf_import_modifiers = 1;
 	}
 
-	if (weston_check_egl_extension(extensions, "GL_EXT_texture_rg"))
-		gr->has_gl_texture_rg = 1;
-
 	if (weston_check_egl_extension(extensions, "EGL_KHR_fence_sync") &&
 	    weston_check_egl_extension(extensions, "EGL_ANDROID_native_fence_sync")) {
 		gr->create_sync =
@@ -3669,9 +3666,14 @@ gl_renderer_setup(struct weston_compositor *ec, EGLSurface egl_surface)
 	else
 		ec->read_format = PIXMAN_a8b8g8r8;
 
-	if (weston_check_egl_extension(extensions, "GL_EXT_unpack_subimage"))
+	if (gr->gl_major >= 3 ||
+	    weston_check_egl_extension(extensions, "GL_EXT_unpack_subimage"))
 		gr->has_unpack_subimage = 1;
 
+	if (gr->gl_major >= 3 ||
+	    weston_check_egl_extension(extensions, "GL_EXT_texture_rg"))
+		gr->has_gl_texture_rg = 1;
+
 	if (weston_check_egl_extension(extensions, "GL_OES_EGL_image_external"))
 		gr->has_egl_image_external = 1;
 
-- 
2.15.0