i965: Fix failure to upload new constant data when changing programs.

This is fallout from the ffvertex_prog.c work.  It doesn't call
ProgramStringNotify, so we don't set param_state, so we wouldn't track when
VP parameters changed, and constants wouldn't get uploaded.  Instead, remove
param_state entirely and just use the real value that we want to be tracking.

Fixes rendering in openarena since BRW_NEW_BATCH got disentangled from
BRW_NEW_INDICES.

Bug #18822.

src/mesa/drivers/dri/i965/brw_context.h

@@ -158,7 +158,6 @@ struct brw_state_flags {
 struct brw_vertex_program {
    struct gl_vertex_program program;
    GLuint id;
-   GLuint param_state;		/* flags indicating state tracked by params */
 };
 
 
@@ -166,7 +165,6 @@ struct brw_vertex_program {
 struct brw_fragment_program {
    struct gl_fragment_program program;
    GLuint id;
-   GLuint param_state;		/* flags indicating state tracked by params */
 };
 
 

src/mesa/drivers/dri/i965/brw_curbe.c

@@ -184,8 +184,8 @@ static void prepare_constant_buffer(struct brw_context *brw)
     * function will also be called whenever fp or vp changes.
     */
    brw->curbe.tracked_state.dirty.mesa = (_NEW_TRANSFORM|_NEW_PROJECTION);
-   brw->curbe.tracked_state.dirty.mesa |= vp->param_state;
-   brw->curbe.tracked_state.dirty.mesa |= fp->param_state;
+   brw->curbe.tracked_state.dirty.mesa |= vp->program.Base.Parameters->StateFlags;
+   brw->curbe.tracked_state.dirty.mesa |= fp->program.Base.Parameters->StateFlags;
 
    if (sz == 0) {
 

src/mesa/drivers/dri/i965/brw_program.c

@@ -117,7 +117,6 @@ static void brwProgramStringNotify( GLcontext *ctx,
       if (p == fp)
 	 brw->state.dirty.brw |= BRW_NEW_FRAGMENT_PROGRAM;
       p->id = brw->program_id++;      
-      p->param_state = p->program.Base.Parameters->StateFlags;
    }
    else if (target == GL_VERTEX_PROGRAM_ARB) {
       struct brw_context *brw = brw_context(ctx);
@@ -129,7 +128,6 @@ static void brwProgramStringNotify( GLcontext *ctx,
 	 _mesa_insert_mvp_code(ctx, &p->program);
       }
       p->id = brw->program_id++;      
-      p->param_state = p->program.Base.Parameters->StateFlags;
 
       /* Also tell tnl about it:
        */

src/mesa/drivers/dri/i965/brw_wm_fp.c

@@ -426,10 +426,6 @@ static struct prog_src_register search_or_add_param5(struct brw_wm_compile *c,
 
    idx = _mesa_add_state_reference( paramList, tokens );
 
-   /* Recalculate state dependency: 
-    */
-   c->fp->param_state = paramList->StateFlags;
-
    return src_reg(PROGRAM_STATE_VAR, idx);
 }