mesa/es3: Allow unsized depth and depth-stencil formats in ES3

They're part of GL_OES_depth_texture_cube_map, and we'll always enable
that extension in ES3 contexts.
Signed-off-by: Ian Romanick <ian.d.romanick@intel.com>
Reviewed-by: Matt Turner <mattst88@gmail.com>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>

src/mesa/main/glformats.c

@@ -2069,12 +2069,14 @@ _mesa_es3_error_check_format_and_type(GLenum format, GLenum type,
    case GL_DEPTH_COMPONENT:
       switch (type) {
       case GL_UNSIGNED_SHORT:
-         if (internalFormat != GL_DEPTH_COMPONENT16)
+         if (internalFormat != GL_DEPTH_COMPONENT
+             && internalFormat != GL_DEPTH_COMPONENT16)
             return GL_INVALID_OPERATION;
          break;
 
       case GL_UNSIGNED_INT:
          switch (internalFormat) {
+         case GL_DEPTH_COMPONENT:
          case GL_DEPTH_COMPONENT16:
          case GL_DEPTH_COMPONENT24:
             break;
@@ -2096,7 +2098,8 @@ _mesa_es3_error_check_format_and_type(GLenum format, GLenum type,
    case GL_DEPTH_STENCIL:
       switch (type) {
       case GL_UNSIGNED_INT_24_8:
-         if (internalFormat != GL_DEPTH24_STENCIL8)
+         if (internalFormat != GL_DEPTH_STENCIL
+             && internalFormat != GL_DEPTH24_STENCIL8)
             return GL_INVALID_OPERATION;
          break;