st/mesa/i965: create link status enum

For the on-disk shader cache we want to be able to differentiate
between a program that was linked and one that was loaded from cache.

V2:
 - don't return the new enum directly to the application when queried,
   instead return GL_TRUE or GL_FALSE as required. Fixes google-chrome
   corruptions when using cache.

Reviewed-by: Anuj Phogat <[email protected]>

1 files changed, 2 insertions, 2 deletions

diff --git a/src/mesa/program/ir_to_mesa.cpp b/src/mesa/program/ir_to_mesa.cpp
index dc5f8016f37..ce58fbbd460 100644
--- a/src/mesa/program/ir_to_mesa.cpp
+++ b/src/mesa/program/ir_to_mesa.cpp
@@ -3096,7 +3096,7 @@ _mesa_glsl_link_shader(struct gl_context *ctx, struct gl_shader_program *prog)
 
    _mesa_clear_shader_program_data(ctx, prog);
 
-   prog->data->LinkStatus = GL_TRUE;
+   prog->data->LinkStatus = linking_success;
 
    for (i = 0; i < prog->NumShaders; i++) {
       if (!prog->Shaders[i]->CompileStatus) {
@@ -3110,7 +3110,7 @@ _mesa_glsl_link_shader(struct gl_context *ctx, struct gl_shader_program *prog)
 
    if (prog->data->LinkStatus) {
       if (!ctx->Driver.LinkShader(ctx, prog)) {
-         prog->data->LinkStatus = GL_FALSE;
+         prog->data->LinkStatus = linking_failure;
       }
    }