From: Brian Paul <brian.paul@tungstengraphics.com>
Date: Sat, 17 Aug 2002 00:26:29 +0000 (+0000)
Subject: added error checking for glCallLists() type parameter
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=9f7011b88bd8dfeb0ddeed65c4c1ef39ad44798a;p=mesa.git

added error checking for glCallLists() type parameter
---

diff --git a/src/mesa/main/dlist.c b/src/mesa/main/dlist.c
index 07687e4dab7..deb4995ff14 100644
--- a/src/mesa/main/dlist.c
+++ b/src/mesa/main/dlist.c
@@ -1,4 +1,4 @@
-/* $Id: dlist.c,v 1.92 2002/06/30 15:47:00 brianp Exp $ */
+/* $Id: dlist.c,v 1.93 2002/08/17 00:26:29 brianp Exp $ */
 
 /*
  * Mesa 3-D graphics library
@@ -520,7 +520,7 @@ void _mesa_init_lists( void )
       InstSize[OPCODE_BLEND_FUNC] = 3;
       InstSize[OPCODE_BLEND_FUNC_SEPARATE] = 5;
       InstSize[OPCODE_CALL_LIST] = 2;
-      InstSize[OPCODE_CALL_LIST_OFFSET] = 2;
+      InstSize[OPCODE_CALL_LIST_OFFSET] = 3;
       InstSize[OPCODE_CLEAR] = 2;
       InstSize[OPCODE_CLEAR_ACCUM] = 5;
       InstSize[OPCODE_CLEAR_COLOR] = 5;
@@ -898,14 +898,34 @@ void _mesa_save_CallLists( GLsizei n, GLenum type, const GLvoid *lists )
 {
    GET_CURRENT_CONTEXT(ctx);
    GLint i;
+   GLboolean typeErrorFlag;
+
    ASSERT_OUTSIDE_SAVE_BEGIN_END_AND_FLUSH(ctx);
    FLUSH_CURRENT(ctx, 0);
 
+   switch (type) {
+      case GL_BYTE:
+      case GL_UNSIGNED_BYTE:
+      case GL_SHORT:
+      case GL_UNSIGNED_SHORT:
+      case GL_INT:
+      case GL_UNSIGNED_INT:
+      case GL_FLOAT:
+      case GL_2_BYTES:
+      case GL_3_BYTES:
+      case GL_4_BYTES:
+         typeErrorFlag = GL_FALSE;
+         break;
+      default:
+         typeErrorFlag = GL_TRUE;
+   }
+
    for (i=0;i<n;i++) {
       GLuint list = translate_id( i, type, lists );
-      Node *n = ALLOC_INSTRUCTION( ctx, OPCODE_CALL_LIST_OFFSET, 1 );
+      Node *n = ALLOC_INSTRUCTION( ctx, OPCODE_CALL_LIST_OFFSET, 2 );
       if (n) {
          n[1].ui = list;
+         n[2].b = typeErrorFlag;
       }
    }
    if (ctx->ExecuteFlag) {
@@ -4201,7 +4221,11 @@ execute_list( GLcontext *ctx, GLuint list )
             break;
          case OPCODE_CALL_LIST_OFFSET:
 	    /* Generated by glCallLists() so we must add ListBase */
-            if (ctx->CallDepth<MAX_LIST_NESTING) {
+            if (n[2].b) {
+               /* user specified a bad datatype at compile time */
+               _mesa_error(ctx, GL_INVALID_ENUM, "glCallLists(type)");
+            }
+            else if (ctx->CallDepth < MAX_LIST_NESTING) {
                execute_list( ctx, ctx->List.ListBase + n[1].ui );
             }
             break;
@@ -5059,6 +5083,24 @@ _mesa_CallLists( GLsizei n, GLenum type, const GLvoid *lists )
    if (MESA_VERBOSE & VERBOSE_API)
       _mesa_debug(ctx, "_mesa_CallLists %d\n", n); 
 
+   switch (type) {
+      case GL_BYTE:
+      case GL_UNSIGNED_BYTE:
+      case GL_SHORT:
+      case GL_UNSIGNED_SHORT:
+      case GL_INT:
+      case GL_UNSIGNED_INT:
+      case GL_FLOAT:
+      case GL_2_BYTES:
+      case GL_3_BYTES:
+      case GL_4_BYTES:
+         /* OK */
+         break;
+      default:
+         _mesa_error(ctx, GL_INVALID_ENUM, "glCallLists(type)");
+         return;
+   }
+
    /* Save the CompileFlag status, turn it off, execute display list,
     * and restore the CompileFlag.
     */