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
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