From 601df9c742939c1f77de489561fe3e1d02f49618 Mon Sep 17 00:00:00 2001
From: Brian Paul <brian.paul@tungstengraphics.com>
Date: Thu, 10 Jun 2004 20:46:23 +0000
Subject: Additional error checking for glTexImageXD. Only allow 1D and 2D
 GL_DEPTH_COMPONENT textures. Make sure internal format and user format are in
 same catagory.

---
 src/mesa/main/teximage.c | 38 +++++++++++++++++++++++++++++++-------
 1 file changed, 31 insertions(+), 7 deletions(-)

(limited to 'src/mesa/main/teximage.c')

diff --git a/src/mesa/main/teximage.c b/src/mesa/main/teximage.c
index 355a50bb9a..54cc73dce8 100644
--- a/src/mesa/main/teximage.c
+++ b/src/mesa/main/teximage.c
@@ -1294,16 +1294,25 @@ texture_error_check( GLcontext *ctx, GLenum target,
       return GL_TRUE;
    }
 
-   if (format == GL_YCBCR_MESA || internalFormat == GL_YCBCR_MESA) {
+   /* make sure internal format and format basically agree */
+   if ((is_color_format(internalFormat) != is_color_format(format)) ||
+       (is_index_format(internalFormat) != is_index_format(format)) ||
+       (is_depth_format(internalFormat) != is_depth_format(format)) ||
+       (is_ycbcr_format(internalFormat) != is_ycbcr_format(format))) {
+      if (!isProxy)
+         _mesa_error(ctx, GL_INVALID_OPERATION,
+                     "glTexImage(internalFormat/format)");
+      return GL_TRUE;
+   }
+
+   /* additional checks for ycbcr textures */
+   if (internalFormat == GL_YCBCR_MESA) {
       ASSERT(ctx->Extensions.MESA_ycbcr_texture);
-      if (format != GL_YCBCR_MESA ||
-          internalFormat != GL_YCBCR_MESA ||
-          (type != GL_UNSIGNED_SHORT_8_8_MESA &&
-          type != GL_UNSIGNED_SHORT_8_8_REV_MESA)) {
+      if (type != GL_UNSIGNED_SHORT_8_8_MESA &&
+          type != GL_UNSIGNED_SHORT_8_8_REV_MESA) {
          char message[100];
          _mesa_sprintf(message,
-                 "glTexImage%d(format/type/internalFormat YCBCR mismatch",
-                 dimensions);
+                 "glTexImage%d(format/type YCBCR mismatch", dimensions);
          _mesa_error(ctx, GL_INVALID_ENUM, message);
          return GL_TRUE; /* error */
       }
@@ -1327,6 +1336,21 @@ texture_error_check( GLcontext *ctx, GLenum target,
       }
    }
 
+   /* additional checks for depth textures */
+   if (_mesa_base_tex_format(ctx, internalFormat) == GL_DEPTH_COMPONENT) {
+      /* Only 1D and 2D textures supported */
+      if (target != GL_TEXTURE_1D &&
+          target != GL_PROXY_TEXTURE_1D &&
+          target != GL_TEXTURE_2D &&
+          target != GL_PROXY_TEXTURE_2D) {
+         if (!isProxy)
+            _mesa_error(ctx, GL_INVALID_ENUM,
+                        "glTexImage(target/internalFormat)");
+         return GL_TRUE;
+      }
+   }
+
+   /* additional checks for compressed textures */
    if (is_compressed_format(ctx, internalFormat)) {
       if (target == GL_TEXTURE_2D || target == GL_PROXY_TEXTURE_2D) {
          /* OK */
-- 
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