From 120584a1e650c5c72c889666a82624af4f5df1c1 Mon Sep 17 00:00:00 2001
From: Brian Paul <brian.paul@tungstengraphics.com>
Date: Sat, 4 Nov 2006 17:31:45 +0000
Subject: Fix for glGetVertexAttribfvNV, bug 8883

---
 src/mesa/shader/nvprogram.c | 21 ++++++++++++++++++---
 1 file changed, 18 insertions(+), 3 deletions(-)

(limited to 'src/mesa/shader')

diff --git a/src/mesa/shader/nvprogram.c b/src/mesa/shader/nvprogram.c
index 0e9a01dcab..4f160b1431 100644
--- a/src/mesa/shader/nvprogram.c
+++ b/src/mesa/shader/nvprogram.c
@@ -360,7 +360,7 @@ _mesa_GetVertexAttribdvNV(GLuint index, GLenum pname, GLdouble *params)
    GET_CURRENT_CONTEXT(ctx);
    ASSERT_OUTSIDE_BEGIN_END(ctx);
 
-   if (index == 0 || index >= MAX_NV_VERTEX_PROGRAM_INPUTS) {
+   if (index >= MAX_NV_VERTEX_PROGRAM_INPUTS) {
       _mesa_error(ctx, GL_INVALID_VALUE, "glGetVertexAttribdvNV(index)");
       return;
    }
@@ -376,6 +376,11 @@ _mesa_GetVertexAttribdvNV(GLuint index, GLenum pname, GLdouble *params)
          params[0] = ctx->Array.ArrayObj->VertexAttrib[index].Type;
          break;
       case GL_CURRENT_ATTRIB_NV:
+         if (index == 0) {
+            _mesa_error(ctx, GL_INVALID_OPERATION,
+                        "glGetVertexAttribdvNV(index == 0)");
+            return;
+         }
 	 FLUSH_CURRENT(ctx, 0);
          COPY_4V(params, ctx->Current.Attrib[index]);
          break;
@@ -396,7 +401,7 @@ _mesa_GetVertexAttribfvNV(GLuint index, GLenum pname, GLfloat *params)
    GET_CURRENT_CONTEXT(ctx);
    ASSERT_OUTSIDE_BEGIN_END(ctx);
 
-   if (index == 0 || index >= MAX_NV_VERTEX_PROGRAM_INPUTS) {
+   if (index >= MAX_NV_VERTEX_PROGRAM_INPUTS) {
       _mesa_error(ctx, GL_INVALID_VALUE, "glGetVertexAttribdvNV(index)");
       return;
    }
@@ -412,6 +417,11 @@ _mesa_GetVertexAttribfvNV(GLuint index, GLenum pname, GLfloat *params)
          params[0] = (GLfloat) ctx->Array.ArrayObj->VertexAttrib[index].Type;
          break;
       case GL_CURRENT_ATTRIB_NV:
+         if (index == 0) {
+            _mesa_error(ctx, GL_INVALID_OPERATION,
+                        "glGetVertexAttribfvNV(index == 0)");
+            return;
+         }
 	 FLUSH_CURRENT(ctx, 0);
          COPY_4V(params, ctx->Current.Attrib[index]);
          break;
@@ -432,7 +442,7 @@ _mesa_GetVertexAttribivNV(GLuint index, GLenum pname, GLint *params)
    GET_CURRENT_CONTEXT(ctx);
    ASSERT_OUTSIDE_BEGIN_END(ctx);
 
-   if (index == 0 || index >= MAX_NV_VERTEX_PROGRAM_INPUTS) {
+   if (index >= MAX_NV_VERTEX_PROGRAM_INPUTS) {
       _mesa_error(ctx, GL_INVALID_VALUE, "glGetVertexAttribdvNV(index)");
       return;
    }
@@ -448,6 +458,11 @@ _mesa_GetVertexAttribivNV(GLuint index, GLenum pname, GLint *params)
          params[0] = ctx->Array.ArrayObj->VertexAttrib[index].Type;
          break;
       case GL_CURRENT_ATTRIB_NV:
+         if (index == 0) {
+            _mesa_error(ctx, GL_INVALID_OPERATION,
+                        "glGetVertexAttribivNV(index == 0)");
+            return;
+         }
 	 FLUSH_CURRENT(ctx, 0);
          params[0] = (GLint) ctx->Current.Attrib[index][0];
          params[1] = (GLint) ctx->Current.Attrib[index][1];
-- 
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