mesa/formatquery: Add support for READ_PIXELS query

This is supported since very early version of OpenGL, but we still call the
driver to give it the opportunity to report caveat or no support.

Reviewed-by: Dave Airlie <airlied@redhat.com>

diff --git a/src/mesa/main/formatquery.c b/src/mesa/main/formatquery.c
index cd32c03..28d82a2 100644 (file)
--- a/src/mesa/main/formatquery.c
+++ b/src/mesa/main/formatquery.c
@@ -1090,7 +1090,8 @@ _mesa_GetInternalformativ(GLenum target, GLenum internalformat, GLenum pname,
       break;
 
    case GL_READ_PIXELS:
-      /* @TODO */
+      ctx->Driver.QueryInternalFormat(ctx, target, internalformat, pname,
+                                      buffer);
       break;
 
    case GL_READ_PIXELS_FORMAT: