Several fp and vp tweaks:

	- Renumber VERT_RESULT_* values so that they match the
	  numbers of the corresponding FRAG_ATTRIB_ values.

        - Add ctx->VertexProgram._Current and FragmentProgram._Current
	  values which point to either the current client-supplied
	  program if enabled, or otherwise to the current mesa-internal
	  program.  Thus this program is always the correct one for
	  the current state, providing that the mesa flags to turn on
	  automatic generation are enabled.

	- Add callbacks to ctx->Driver.BindProgram() in texenvprogram.c
	  and t_vp_build.c so that the driver knows when the generated
	  program changes.  This is cleaner than trying to code all the
	  possible _NEW_* flags into the driver, and more precise as well.

	- Add a UsesKill flag to identify fragment programs with that
	  instruction, as these can require special treatment.

	- Move the FRAG_OUTPUT values to mtypes.h, near to similar defn's.

2 files changed, 58 insertions, 34 deletions

diff --git a/src/mesa/main/mtypes.h b/src/mesa/main/mtypes.h
index aadd0a7e7f..d77759df25 100644
--- a/src/mesa/main/mtypes.h
+++ b/src/mesa/main/mtypes.h
@@ -195,18 +195,18 @@ enum
 #define VERT_RESULT_HPOS 0
 #define VERT_RESULT_COL0 1
 #define VERT_RESULT_COL1 2
-#define VERT_RESULT_BFC0 3
-#define VERT_RESULT_BFC1 4
-#define VERT_RESULT_FOGC 5
-#define VERT_RESULT_PSIZ 6
-#define VERT_RESULT_TEX0 7
-#define VERT_RESULT_TEX1 8
-#define VERT_RESULT_TEX2 9
-#define VERT_RESULT_TEX3 10
-#define VERT_RESULT_TEX4 11
-#define VERT_RESULT_TEX5 12
-#define VERT_RESULT_TEX6 13
-#define VERT_RESULT_TEX7 14
+#define VERT_RESULT_FOGC 3
+#define VERT_RESULT_TEX0 4
+#define VERT_RESULT_TEX1 5
+#define VERT_RESULT_TEX2 6
+#define VERT_RESULT_TEX3 7
+#define VERT_RESULT_TEX4 8
+#define VERT_RESULT_TEX5 9
+#define VERT_RESULT_TEX6 10
+#define VERT_RESULT_TEX7 11
+#define VERT_RESULT_PSIZ 12
+#define VERT_RESULT_BFC0 13
+#define VERT_RESULT_BFC1 14
 #define VERT_RESULT_MAX  15
 
 
@@ -226,7 +226,9 @@ enum
    FRAG_ATTRIB_TEX4 = 8,
    FRAG_ATTRIB_TEX5 = 9,
    FRAG_ATTRIB_TEX6 = 10,
-   FRAG_ATTRIB_TEX7 = 11
+   FRAG_ATTRIB_TEX7 = 11,
+   
+   FRAG_ATTRIB_MAX = 12
 };
 
 /*
@@ -257,6 +259,14 @@ enum
 /*@}*/
 
 
+/* Fragment program results
+ */
+#define FRAG_OUTPUT_COLR  0
+#define FRAG_OUTPUT_COLH  1
+#define FRAG_OUTPUT_DEPR  2
+#define FRAG_OUTPUT_MAX   3
+
+
 /**
  * Indexes for all renderbuffers
  */
@@ -1791,6 +1801,7 @@ struct fragment_program
    GLuint NumNativeTexIndirections;
    GLenum FogOption;
    struct program_parameter_list *Parameters; /**< array [NumParameters] */
+   GLboolean UsesKill;
 
 #ifdef USE_TCC
    char c_str[4096];		/* experimental... */
@@ -1835,6 +1846,9 @@ struct gl_vertex_program_state
    GLboolean PointSizeEnabled;         /**< GL_VERTEX_PROGRAM_POINT_SIZE_NV */
    GLboolean TwoSideEnabled;           /**< GL_VERTEX_PROGRAM_TWO_SIDE_NV */
    struct vertex_program *Current;     /**< ptr to currently bound program */
+   struct vertex_program *_Current;    /**< ptr to currently bound
+					   program, including internal
+					   (t_vp_build.c) programs */
 
    GLenum TrackMatrix[MAX_NV_VERTEX_PROGRAM_PARAMS / 4];
    GLenum TrackMatrixTransform[MAX_NV_VERTEX_PROGRAM_PARAMS / 4];
@@ -1865,7 +1879,8 @@ struct gl_fragment_program_state
    GLboolean _Enabled;                   /* Really enabled? */
    GLboolean _Active;                    /* Really really enabled? */
    struct fragment_program *Current;     /* ptr to currently bound program */
-   struct fragment_program *_Current;    /* ptr to currently active program */
+   struct fragment_program *_Current;    /* ptr to currently active program 
+					    (including internal programs) */
    struct fp_machine Machine;            /* machine state */
    GLfloat Parameters[MAX_NV_FRAGMENT_PROGRAM_PARAMS][4]; /* Env params */
 
diff --git a/src/mesa/main/texenvprogram.c b/src/mesa/main/texenvprogram.c
index 18d704ce1b..43dda28f26 100644
--- a/src/mesa/main/texenvprogram.c
+++ b/src/mesa/main/texenvprogram.c
@@ -1130,32 +1130,41 @@ void _mesa_UpdateTexEnvProgram( GLcontext *ctx )
 {
    struct state_key *key;
    GLuint hash;
+   struct fragment_program *prev = ctx->FragmentProgram._Current;
 	
-   if (ctx->FragmentProgram._Enabled)
-      return;
-	
-   key = make_state_key(ctx);
-   hash = hash_key(key);
-
-   ctx->FragmentProgram._Current = ctx->_TexEnvProgram =
-      (struct fragment_program *)
-      search_cache(ctx->Texture.env_fp_cache, hash, key, sizeof(*key));
+   if (!ctx->FragmentProgram._Enabled) {
+      key = make_state_key(ctx);
+      hash = hash_key(key);
+      
+      ctx->FragmentProgram._Current = ctx->_TexEnvProgram =
+	 (struct fragment_program *)
+	 search_cache(ctx->Texture.env_fp_cache, hash, key, sizeof(*key));
 	
-   if (!ctx->_TexEnvProgram) {
-      if (0) _mesa_printf("Building new texenv proggy for key %x\n", hash);
+      if (!ctx->_TexEnvProgram) {
+	 if (1) _mesa_printf("Building new texenv proggy for key %x\n", hash);
 		
-      ctx->FragmentProgram._Current = ctx->_TexEnvProgram = 
-	 (struct fragment_program *) 
-	 ctx->Driver.NewProgram(ctx, GL_FRAGMENT_PROGRAM_ARB, 0);
+	 ctx->FragmentProgram._Current = ctx->_TexEnvProgram = 
+	    (struct fragment_program *) 
+	    ctx->Driver.NewProgram(ctx, GL_FRAGMENT_PROGRAM_ARB, 0);
 		
-      create_new_program(key, ctx, ctx->_TexEnvProgram);
+	 create_new_program(key, ctx, ctx->_TexEnvProgram);
 
-      cache_item(&ctx->Texture.env_fp_cache, hash, key, ctx->_TexEnvProgram);
-   } else {
-      FREE(key);
-      if (0) _mesa_printf("Found existing texenv program for key %x\n", hash);
+	 cache_item(&ctx->Texture.env_fp_cache, hash, key, ctx->_TexEnvProgram);
+      } else {
+	 FREE(key);
+	 if (1) _mesa_printf("Found existing texenv program for key %x\n", hash);
+      }
+   } 
+   else {
+      ctx->FragmentProgram._Current = ctx->FragmentProgram.Current;
    }
-	
+
+   /* Tell the driver about the change.  Could define a new target for
+    * this?
+    */
+   if (ctx->FragmentProgram._Current != prev)
+      ctx->Driver.BindProgram(ctx, GL_FRAGMENT_PROGRAM_ARB, (struct program *)
+			      ctx->FragmentProgram._Current);   
 }
 
 void _mesa_TexEnvProgramCacheDestroy( GLcontext *ctx )