From 61b512c47c9888f3ff117faf3aceccfb52d59c3a Mon Sep 17 00:00:00 2001
From: Eric Anholt <eric@anholt.net>
Date: Wed, 29 Jul 2009 23:37:04 -0700
Subject: [PATCH] i915: Update and translate the fragment program along with
 state updates.

Previously, we were doing it in the midst of the pipeline run, which gave
an opportunity to enable/disable fallbacks, which is certainly the wrong
time to be doing so.  This manifested itself in a NULL dereference for PutRow
after transitioning out of a fallback during a run_pipeline in glean glsl1.
---
 src/mesa/drivers/dri/i915/i915_context.c  |  3 +++
 src/mesa/drivers/dri/i915/i915_fragprog.c | 32 ++++++++++++++++-------
 src/mesa/drivers/dri/i915/i915_program.c  |  2 --
 src/mesa/drivers/dri/i915/i915_program.h  |  3 +--
 4 files changed, 26 insertions(+), 14 deletions(-)

diff --git a/src/mesa/drivers/dri/i915/i915_context.c b/src/mesa/drivers/dri/i915/i915_context.c
index 3ab7d682ee7..b342503772b 100644
--- a/src/mesa/drivers/dri/i915/i915_context.c
+++ b/src/mesa/drivers/dri/i915/i915_context.c
@@ -40,6 +40,7 @@
 
 #include "utils.h"
 #include "i915_reg.h"
+#include "i915_program.h"
 
 #include "intel_regions.h"
 #include "intel_batchbuffer.h"
@@ -80,6 +81,8 @@ i915InvalidateState(GLcontext * ctx, GLuint new_state)
       i915_update_stencil(ctx);
    if (new_state & (_NEW_LIGHT))
        i915_update_provoking_vertex(ctx);
+   if (new_state & (_NEW_PROGRAM | _NEW_PROGRAM_CONSTANTS))
+       i915_update_program(ctx);
 }
 
 
diff --git a/src/mesa/drivers/dri/i915/i915_fragprog.c b/src/mesa/drivers/dri/i915/i915_fragprog.c
index beed8ef1979..929a6eb8352 100644
--- a/src/mesa/drivers/dri/i915/i915_fragprog.c
+++ b/src/mesa/drivers/dri/i915/i915_fragprog.c
@@ -1058,6 +1058,28 @@ i915ProgramStringNotify(GLcontext * ctx,
    _tnl_program_string(ctx, target, prog);
 }
 
+void
+i915_update_program(GLcontext *ctx)
+{
+   struct intel_context *intel = intel_context(ctx);
+   struct i915_context *i915 = i915_context(&intel->ctx);
+   struct i915_fragment_program *fp =
+      (struct i915_fragment_program *) ctx->FragmentProgram._Current;
+
+   if (i915->current_program != fp) {
+      if (i915->current_program) {
+         i915->current_program->on_hardware = 0;
+         i915->current_program->params_uptodate = 0;
+      }
+
+      i915->current_program = fp;
+   }
+
+   if (!fp->translated)
+      translate_program(fp);
+
+   FALLBACK(&i915->intel, I915_FALLBACK_PROGRAM, fp->error);
+}
 
 void
 i915ValidateFragmentProgram(struct i915_context *i915)
@@ -1075,16 +1097,6 @@ i915ValidateFragmentProgram(struct i915_context *i915)
    GLuint s2 = S2_TEXCOORD_NONE;
    int i, offset = 0;
 
-   if (i915->current_program != p) {
-      if (i915->current_program) {
-         i915->current_program->on_hardware = 0;
-         i915->current_program->params_uptodate = 0;
-      }
-
-      i915->current_program = p;
-   }
-
-
    /* Important:
     */
    VB->AttribPtr[VERT_ATTRIB_POS] = VB->NdcPtr;
diff --git a/src/mesa/drivers/dri/i915/i915_program.c b/src/mesa/drivers/dri/i915/i915_program.c
index 6ccc9eea3e0..fd3019b234a 100644
--- a/src/mesa/drivers/dri/i915/i915_program.c
+++ b/src/mesa/drivers/dri/i915/i915_program.c
@@ -530,8 +530,6 @@ i915_upload_program(struct i915_context *i915,
    GLuint program_size = p->csr - p->program;
    GLuint decl_size = p->decl - p->declarations;
 
-   FALLBACK(&i915->intel, I915_FALLBACK_PROGRAM, p->error);
-
    /* Could just go straight to the batchbuffer from here:
     */
    if (i915->state.ProgramSize != (program_size + decl_size) ||
diff --git a/src/mesa/drivers/dri/i915/i915_program.h b/src/mesa/drivers/dri/i915/i915_program.h
index 1074d24f9e4..0d17d048653 100644
--- a/src/mesa/drivers/dri/i915/i915_program.h
+++ b/src/mesa/drivers/dri/i915/i915_program.h
@@ -155,7 +155,6 @@ extern void i915_upload_program(struct i915_context *i915,
 
 extern void i915_fini_program(struct i915_fragment_program *p);
 
-
-
+extern void i915_update_program(GLcontext *ctx);
 
 #endif
-- 
2.30.2