i965/vs: Run the shader backend at link time and return compile failures.

[mesa.git] / src / mesa / drivers / dri / i965 / brw_vs.c

diff --git a/src/mesa/drivers/dri/i965/brw_vs.c b/src/mesa/drivers/dri/i965/brw_vs.c
index d389f602fba3b106e26d4aab3afb5492b200c6c8..3373e707d98877aa38257cc865ec183a73bcdbf8 100644 (file)
--- a/src/mesa/drivers/dri/i965/brw_vs.c
+++ b/src/mesa/drivers/dri/i965/brw_vs.c
@@ -40,9 +40,11 @@
 
 #include "../glsl/ralloc.h"
 
-static void do_vs_prog( struct brw_context *brw, 
-                       struct brw_vertex_program *vp,
-                       struct brw_vs_prog_key *key )
+static bool
+do_vs_prog(struct brw_context *brw,
+          struct gl_shader_program *prog,
+          struct brw_vertex_program *vp,
+          struct brw_vs_prog_key *key)
 {
    struct gl_context *ctx = &brw->intel.ctx;
    struct intel_context *intel = &brw->intel;
@@ -91,9 +93,11 @@ static void do_vs_prog( struct brw_context *brw,
    if (new_vs == -1)
       new_vs = getenv("INTEL_NEW_VS") != NULL;
 
-   if (new_vs) {
-      if (!brw_vs_emit(&c))
-        brw_old_vs_emit(&c);
+   if (new_vs && prog) {
+      if (!brw_vs_emit(prog, &c)) {
+        ralloc_free(mem_ctx);
+        return false;
+      }
    } else {
       brw_old_vs_emit(&c);
    }
@@ -130,6 +134,8 @@ static void do_vs_prog( struct brw_context *brw,
                    &c.prog_data, aux_size,
                    &brw->vs.prog_offset, &brw->vs.prog_data);
    ralloc_free(mem_ctx);
+
+   return true;
 }
 
 
@@ -174,13 +180,15 @@ static void brw_upload_vs_prog(struct brw_context *brw)
    if (!brw_search_cache(&brw->cache, BRW_VS_PROG,
                         &key, sizeof(key),
                         &brw->vs.prog_offset, &brw->vs.prog_data)) {
-      do_vs_prog(brw, vp, &key);
+      bool success = do_vs_prog(brw, ctx->Shader.CurrentVertexProgram,
+                               vp, &key);
+
+      assert(success);
    }
    brw->vs.constant_map = ((int8_t *)brw->vs.prog_data +
                           sizeof(*brw->vs.prog_data));
 }
 
-
 /* See brw_vs.c:
  */
 const struct brw_tracked_state brw_vs_prog = {
@@ -193,3 +201,30 @@ const struct brw_tracked_state brw_vs_prog = {
    },
    .prepare = brw_upload_vs_prog
 };
+
+bool
+brw_vs_precompile(struct gl_context *ctx, struct gl_shader_program *prog)
+{
+   struct brw_context *brw = brw_context(ctx);
+   struct brw_vs_prog_key key;
+   struct gl_vertex_program *vp = prog->VertexProgram;
+   struct brw_vertex_program *bvp = brw_vertex_program(vp);
+   uint32_t old_prog_offset = brw->vs.prog_offset;
+   struct brw_vs_prog_data *old_prog_data = brw->vs.prog_data;
+   bool success;
+
+   if (!vp)
+      return true;
+
+   memset(&key, 0, sizeof(key));
+
+   key.program_string_id = bvp->id;
+   key.clamp_vertex_color = true;
+
+   success = do_vs_prog(brw, prog, bvp, &key);
+
+   brw->vs.prog_offset = old_prog_offset;
+   brw->vs.prog_data = old_prog_data;
+
+   return success;
+}