some fixes for compressed cube maps (bug 11986)

src/mesa/main/mipmap.c

@@ -1,8 +1,8 @@
 /*
  * Mesa 3-D graphics library
- * Version:  6.5.2
+ * Version:  7.1
  *
- * Copyright (C) 1999-2006  Brian Paul   All Rights Reserved.
+ * Copyright (C) 1999-2007  Brian Paul   All Rights Reserved.
  *
  * Permission is hereby granted, free of charge, to any person obtaining a
  * copy of this software and associated documentation files (the "Software"),
@@ -957,7 +957,8 @@ _mesa_generate_mipmap(GLcontext *ctx, GLenum target,
       GLint  components, size;
       GLchan *dst;
 
-      assert(texObj->Target == GL_TEXTURE_2D);
+      assert(texObj->Target == GL_TEXTURE_2D ||
+             texObj->Target == GL_TEXTURE_CUBE_MAP_ARB);
 
       if (srcImage->_BaseFormat == GL_RGB) {
          convertFormat = &_mesa_texformat_rgb;

src/mesa/main/teximage.c

@@ -1998,7 +1998,7 @@ copytexture_error_check( GLcontext *ctx, GLuint dimensions,
    }
 
    if (is_compressed_format(ctx, internalFormat)) {
-      if (target != GL_TEXTURE_2D) {
+      if (!target_can_be_compressed(ctx, target)) {
          _mesa_error(ctx, GL_INVALID_ENUM,
                      "glCopyTexImage%d(target)", dimensions);
          return GL_TRUE;
@@ -2181,7 +2181,7 @@ copytexsubimage_error_check2( GLcontext *ctx, GLuint dimensions,
    }
 
    if (teximage->IsCompressed) {
-      if (target != GL_TEXTURE_2D) {
+      if (!target_can_be_compressed(ctx, target)) {
          _mesa_error(ctx, GL_INVALID_ENUM,
                      "glCopyTexSubImage%d(target)", dimensions);
          return GL_TRUE;