From: Marek Olšák <marek.ol...@amd.com>
This is technically not needed, but it makes the compiler return a better
error message if tessellation is used with GLSL < 1.50.
Instead of:
error: syntax error, unexpected NEW_IDENTIFIER, expecting $end
It returns:
error: #version 150 layout qualifier `triangles' used
And the tessellation spec says:
OpenGL 3.2 and GLSL 1.50 are required.
So it makes perfect sense.
---
src/glsl/glsl_lexer.ll | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/src/glsl/glsl_lexer.ll b/src/glsl/glsl_lexer.ll
index 68f1989..41054f1 100644
--- a/src/glsl/glsl_lexer.ll
+++ b/src/glsl/glsl_lexer.ll
@@ -425,7 +425,8 @@ layout {
|| yyextra->ARB_uniform_buffer_object_enable
|| yyextra->ARB_fragment_coord_conventions_enable
|| yyextra->ARB_shading_language_420pack_enable
- || yyextra->ARB_compute_shader_enable) {
+ || yyextra->ARB_compute_shader_enable
+ || yyextra->ARB_tessellation_shader_enable) {
return LAYOUT_TOK;
} else {
void *mem_ctx = yyextra;
--
2.1.0
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