From: Alex Deucher <alexdeucher@gmail.com>
Date: Mon, 8 Mar 2010 22:38:39 +0000 (-0500)
Subject: radeon: don't attempt to use alternate blit formats for depth buffers
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=ffd625d4aaf145eb28fc76617e95ffc3fdfd54cc;p=mesa.git

radeon: don't attempt to use alternate blit formats for depth buffers

noticed by fredrikh on IRC.
---

diff --git a/src/mesa/drivers/dri/radeon/radeon_tex_copy.c b/src/mesa/drivers/dri/radeon/radeon_tex_copy.c
index a4bb03d5d39..5cfad6fc3c8 100644
--- a/src/mesa/drivers/dri/radeon/radeon_tex_copy.c
+++ b/src/mesa/drivers/dri/radeon/radeon_tex_copy.c
@@ -93,6 +93,10 @@ do_copy_texsubimage(GLcontext *ctx,
     src_bpp = _mesa_get_format_bytes(src_mesaformat);
     dst_bpp = _mesa_get_format_bytes(dst_mesaformat);
     if (!radeon->vtbl.check_blit(dst_mesaformat)) {
+	    /* depth formats tend to be special */
+	    if (_mesa_get_format_bits(dst_mesaformat, GL_DEPTH_BITS) > 0)
+		    return GL_FALSE;
+
 	    if (src_bpp != dst_bpp)
 		    return GL_FALSE;