On Wed, Sep 10, 2014 at 8:20 PM, Kalyan Kondapally
<kondapallykalyancontrib...@gmail.com> wrote:
> With GLES we don't give any kind of warning in case we don't
> write to gl_position. This patch makes changes so that we
> generate a warning in case of GLES (VER < 300) and an error
> in case of GL.
>
> Signed-off-by: Kalyan Kondapally <kalyan.kondapa...@intel.com>
> ---
> src/glsl/linker.cpp | 11 +++++++++--
> 1 file changed, 9 insertions(+), 2 deletions(-)
>
> diff --git a/src/glsl/linker.cpp b/src/glsl/linker.cpp
> index e9cf550..f4a35e2 100644
> --- a/src/glsl/linker.cpp
> +++ b/src/glsl/linker.cpp
> @@ -562,11 +562,18 @@ validate_vertex_shader_executable(struct
> gl_shader_program *prog,
> * All GLSL ES Versions are similar to GLSL 1.40--failing to write to
> * gl_Position is not an error.
> */
> - if (!prog->IsES && prog->Version < 140) {
> + if (prog->Version < (prog->IsES ? 300 : 140)) {
> find_assignment_visitor find("gl_Position");
> find.run(shader->ir);
> if (!find.variable_found()) {
> - linker_error(prog, "vertex shader does not write to
> `gl_Position'\n");
> + if (prog->IsES) {
> + linker_warning(prog,
> + "vertex shader does not write to `gl_Position'."
> + "It's value is undefined. \n");
> + } else {
> + linker_error(prog,
> + "vertex shader does not write to `gl_Position'. \n");
> + }
> return;
> }
> }
> --
> 1.7.9.5
>
> _______________________________________________
> mesa-dev mailing list
> mesa-dev@lists.freedesktop.org
> http://lists.freedesktop.org/mailman/listinfo/mesa-dev
Reviewed-by: Anuj Phogat <anuj.pho...@gmail.com>
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