This will allow this function to be used in circumstances where there
is no context available, such as when building built-in GLSL
functions.
---
src/mesa/main/shaderapi.c | 13 ++++++++++---
1 file changed, 10 insertions(+), 3 deletions(-)
diff --git a/src/mesa/main/shaderapi.c b/src/mesa/main/shaderapi.c
index 716e659..2ab0a0c 100644
--- a/src/mesa/main/shaderapi.c
+++ b/src/mesa/main/shaderapi.c
@@ -174,13 +174,20 @@ _mesa_copy_string(GLchar *dst, GLsizei maxLength,
bool
_mesa_validate_shader_target(const struct gl_context *ctx, GLenum type)
{
+ /* Note: when building built-in GLSL functions, this function may be
+ * invoked with ctx == NULL. In that case, we can only validate that it's
+ * a shader target we recognize, not that it's supported in the current
+ * context. But that's fine--we don't need any further validation than
+ * that when building built-in GLSL functions.
+ */
+
switch (type) {
case GL_FRAGMENT_SHADER:
- return ctx->Extensions.ARB_fragment_shader;
+ return ctx == NULL || ctx->Extensions.ARB_fragment_shader;
case GL_VERTEX_SHADER:
- return ctx->Extensions.ARB_vertex_shader;
+ return ctx == NULL || ctx->Extensions.ARB_vertex_shader;
case GL_GEOMETRY_SHADER_ARB:
- return _mesa_has_geometry_shaders(ctx);
+ return ctx == NULL || _mesa_has_geometry_shaders(ctx);
default:
return false;
}
--
1.8.5.2
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