From b729d9e1cc1c60e415da24143cabcbaccb525ed7 Mon Sep 17 00:00:00 2001
From: marha <marha@users.sourceforge.net>
Date: Tue, 22 Dec 2009 17:33:44 +0000
Subject: Updated to mesa_7_6_1_rc1

---
 mesalib/src/mesa/shader/arbprogram.c | 44 +++++++++++++++++++++++++++++++-----
 1 file changed, 38 insertions(+), 6 deletions(-)

(limited to 'mesalib/src/mesa/shader/arbprogram.c')

diff --git a/mesalib/src/mesa/shader/arbprogram.c b/mesalib/src/mesa/shader/arbprogram.c
index 4d8cff070..eb537cd1b 100644
--- a/mesalib/src/mesa/shader/arbprogram.c
+++ b/mesalib/src/mesa/shader/arbprogram.c
@@ -37,6 +37,8 @@
 #include "main/mtypes.h"
 #include "arbprogram.h"
 #include "arbprogparse.h"
+#include "nvfragparse.h"
+#include "nvvertparse.h"
 #include "program.h"
 
 
@@ -428,36 +430,66 @@ void GLAPIENTRY
 _mesa_ProgramStringARB(GLenum target, GLenum format, GLsizei len,
                        const GLvoid *string)
 {
+   struct gl_program *base;
    GET_CURRENT_CONTEXT(ctx);
    ASSERT_OUTSIDE_BEGIN_END(ctx);
 
    FLUSH_VERTICES(ctx, _NEW_PROGRAM);
 
+   if (!ctx->Extensions.ARB_vertex_program
+       && !ctx->Extensions.ARB_fragment_program) {
+      _mesa_error(ctx, GL_INVALID_OPERATION, "glProgramStringARB()");
+      return;
+   }
+
    if (format != GL_PROGRAM_FORMAT_ASCII_ARB) {
       _mesa_error(ctx, GL_INVALID_ENUM, "glProgramStringARB(format)");
       return;
    }
 
+   /* The first couple cases are complicated.  The same enum value is used for
+    * ARB and NV vertex programs.  If the target is a vertex program, parse it
+    * using the ARB grammar if the string starts with "!!ARB" or if
+    * NV_vertex_program is not supported.
+    */
    if (target == GL_VERTEX_PROGRAM_ARB
-       && ctx->Extensions.ARB_vertex_program) {
+       && ctx->Extensions.ARB_vertex_program
+       && ((strncmp(string, "!!ARB", 5) == 0)
+	   || !ctx->Extensions.NV_vertex_program)) {
       struct gl_vertex_program *prog = ctx->VertexProgram.Current;
       _mesa_parse_arb_vertex_program(ctx, target, string, len, prog);
-      
-      if (ctx->Program.ErrorPos == -1 && ctx->Driver.ProgramStringNotify)
-	 ctx->Driver.ProgramStringNotify( ctx, target, &prog->Base );
+
+      base = & prog->Base;
+   }
+   else if ((target == GL_VERTEX_PROGRAM_ARB
+	     || target == GL_VERTEX_STATE_PROGRAM_NV)
+	    && ctx->Extensions.NV_vertex_program) {
+      struct gl_vertex_program *prog = ctx->VertexProgram.Current;
+      _mesa_parse_nv_vertex_program(ctx, target, string, len, prog);
+
+      base = & prog->Base;
    }
    else if (target == GL_FRAGMENT_PROGRAM_ARB
             && ctx->Extensions.ARB_fragment_program) {
       struct gl_fragment_program *prog = ctx->FragmentProgram.Current;
       _mesa_parse_arb_fragment_program(ctx, target, string, len, prog);
 
-      if (ctx->Program.ErrorPos == -1 && ctx->Driver.ProgramStringNotify)
-	 ctx->Driver.ProgramStringNotify( ctx, target, &prog->Base );
+      base = & prog->Base;
+   }
+   else if (target == GL_FRAGMENT_PROGRAM_NV
+            && ctx->Extensions.NV_fragment_program) {
+      struct gl_fragment_program *prog = ctx->FragmentProgram.Current;
+      _mesa_parse_nv_fragment_program(ctx, target, string, len, prog);
+
+      base = & prog->Base;
    }
    else {
       _mesa_error(ctx, GL_INVALID_ENUM, "glProgramStringARB(target)");
       return;
    }
+
+   if (ctx->Program.ErrorPos == -1 && ctx->Driver.ProgramStringNotify)
+      ctx->Driver.ProgramStringNotify( ctx, target, base );
 }
 
 
-- 
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