glsl/mesa: split gl_shader in two

There are two distinctly different uses of this struct. The first
is to store GL shader objects. The second is to store information
about a shader stage thats been linked.

The two uses actually share few fields and there is clearly confusion
about their use. For example the linked shaders map one to one with
a program so can simply be destroyed along with the program. However
previously we were calling reference counting on the linked shaders.

We were also creating linked shaders with a name even though it
is always 0 and called the driver version of the _mesa_new_shader()
function unnecessarily for GL shader objects.

Acked-by: Iago Toral Quiroga <itoral@igalia.com>

1 files changed, 3 insertions, 2 deletions

diff --git a/src/mesa/drivers/dri/i965/brw_context.c b/src/mesa/drivers/dri/i965/brw_context.c
index c7a66cb..5e3c9d1 100644
--- a/src/mesa/drivers/dri/i965/brw_context.c
+++ b/src/mesa/drivers/dri/i965/brw_context.c
@@ -239,8 +239,9 @@ intel_update_state(struct gl_context * ctx, GLuint new_state)
 
    /* Resolve color for each active shader image. */
    for (unsigned i = 0; i < MESA_SHADER_STAGES; i++) {
-      const struct gl_shader *shader = ctx->_Shader->CurrentProgram[i] ?
-         ctx->_Shader->CurrentProgram[i]->_LinkedShaders[i] : NULL;
+      const struct gl_linked_shader *shader =
+         ctx->_Shader->CurrentProgram[i] ?
+            ctx->_Shader->CurrentProgram[i]->_LinkedShaders[i] : NULL;
 
       if (unlikely(shader && shader->NumImages)) {
          for (unsigned j = 0; j < shader->NumImages; j++) {