From 9ca83924848070d02a5ac2f0aa4e20444eec2183 Mon Sep 17 00:00:00 2001
From: Brian Paul <brian.paul@tungstengraphics.com>
Date: Sat, 2 Oct 2004 15:16:59 +0000
Subject: [PATCH] fix LoadProgramNV regression when I had fixed the RefCount
 bug

---
 src/mesa/shader/nvprogram.c | 10 +++++-----
 src/mesa/shader/program.c   |  8 ++++----
 src/mesa/shader/program.h   |  3 +++
 3 files changed, 12 insertions(+), 9 deletions(-)

diff --git a/src/mesa/shader/nvprogram.c b/src/mesa/shader/nvprogram.c
index 070451452a3..4db78a8cc74 100644
--- a/src/mesa/shader/nvprogram.c
+++ b/src/mesa/shader/nvprogram.c
@@ -160,12 +160,12 @@ _mesa_RequestResidentProgramsNV(GLsizei n, const GLuint *ids)
       }
 
       prog = (struct program *) _mesa_HashLookup(ctx->Shared->Programs, ids[i]);
-
       if (!prog) {
          _mesa_error(ctx, GL_INVALID_VALUE, "glRequestResidentProgramsNV(id)");
          return;
       }
 
+      /* XXX this is really a hardware thing we should hook out */
       prog->Resident = GL_TRUE;
    }
 }
@@ -529,7 +529,7 @@ _mesa_LoadProgramNV(GLenum target, GLuint id, GLsizei len,
         target == GL_VERTEX_STATE_PROGRAM_NV)
        && ctx->Extensions.NV_vertex_program) {
       struct vertex_program *vprog = (struct vertex_program *) prog;
-      if (!vprog) {
+      if (!vprog || prog == &_mesa_DummyProgram) {
          vprog = (struct vertex_program *)
             ctx->Driver.NewProgram(ctx, target, id);
          if (!vprog) {
@@ -543,7 +543,7 @@ _mesa_LoadProgramNV(GLenum target, GLuint id, GLsizei len,
    else if (target == GL_FRAGMENT_PROGRAM_NV
             && ctx->Extensions.NV_fragment_program) {
       struct fragment_program *fprog = (struct fragment_program *) prog;
-      if (!fprog) {
+      if (!fprog || prog == &_mesa_DummyProgram) {
          fprog = (struct fragment_program *)
             ctx->Driver.NewProgram(ctx, target, id);
          if (!fprog) {
@@ -776,7 +776,7 @@ _mesa_ProgramNamedParameter4fNV(GLuint id, GLsizei len, const GLubyte *name,
    }
 
    if (len <= 0) {
-      _mesa_error(ctx, GL_INVALID_VALUE, "glProgramNamedParameterNV");
+      _mesa_error(ctx, GL_INVALID_VALUE, "glProgramNamedParameterNV(len)");
       return;
    }
 
@@ -790,7 +790,7 @@ _mesa_ProgramNamedParameter4fNV(GLuint id, GLsizei len, const GLubyte *name,
       return;
    }
 
-   _mesa_error(ctx, GL_INVALID_VALUE, "glProgramNamedParameterNV");
+   _mesa_error(ctx, GL_INVALID_VALUE, "glProgramNamedParameterNV(name)");
 }
 
 
diff --git a/src/mesa/shader/program.c b/src/mesa/shader/program.c
index 7ec09b02563..88085f811ae 100644
--- a/src/mesa/shader/program.c
+++ b/src/mesa/shader/program.c
@@ -49,7 +49,7 @@
 /* A pointer to this dummy program is put into the hash table when
  * glGenPrograms is called.
  */
-static struct program DummyProgram;
+struct program _mesa_DummyProgram;
 
 
 /**
@@ -938,7 +938,7 @@ _mesa_BindProgram(GLenum target, GLuint id)
    else {
       /* Bind user program */
       prog = (struct program *) _mesa_HashLookup(ctx->Shared->Programs, id);
-      if (!prog || prog == &DummyProgram) {
+      if (!prog || prog == &_mesa_DummyProgram) {
          /* allocate a new program now */
          prog = ctx->Driver.NewProgram(ctx, target, id);
          if (!prog) {
@@ -995,7 +995,7 @@ _mesa_DeletePrograms(GLsizei n, const GLuint *ids)
       if (ids[i] != 0) {
          struct program *prog = (struct program *)
             _mesa_HashLookup(ctx->Shared->Programs, ids[i]);
-         if (prog == &DummyProgram) {
+         if (prog == &_mesa_DummyProgram) {
             _mesa_HashRemove(ctx->Shared->Programs, ids[i]);
          }
          else if (prog) {
@@ -1060,7 +1060,7 @@ _mesa_GenPrograms(GLsizei n, GLuint *ids)
 
    /* Insert pointer to dummy program as placeholder */
    for (i = 0; i < (GLuint) n; i++) {
-      _mesa_HashInsert(ctx->Shared->Programs, first + i, &DummyProgram);
+      _mesa_HashInsert(ctx->Shared->Programs, first + i, &_mesa_DummyProgram);
    }
 
    /* Return the program names */
diff --git a/src/mesa/shader/program.h b/src/mesa/shader/program.h
index fb99a79cf6b..e8a667ddc63 100644
--- a/src/mesa/shader/program.h
+++ b/src/mesa/shader/program.h
@@ -52,6 +52,9 @@
 #define SWIZZLE_ONE  5		/* keep these values together: KW */
 
 
+extern struct program _mesa_DummyProgram;
+
+
 /*
  * Internal functions
  */
-- 
2.30.2