Mesa (master): r600g: enforce minimum stride on render target texture images

[Keith Whitwell]

Module: Mesa
Branch: master
Commit: 7fb16423cc325efcdcf6e4954a5ac71d8f96dbf8
URL:    http://cgit.freedesktop.org/mesa/mesa/commit/?id=7fb16423cc325efcdcf6e4954a5ac71d8f96dbf8

Author: Keith Whitwell <keithw at vmware.com>
Date:   Thu Nov 11 16:20:24 2010 +0000

r600g: enforce minimum stride on render target texture images

Fixes piglit/fbo_readpixels since staging upload changes.

---

 src/gallium/drivers/r600/r600_texture.c |    4 ++++
 1 files changed, 4 insertions(+), 0 deletions(-)

diff --git a/src/gallium/drivers/r600/r600_texture.c b/src/gallium/drivers/r600/r600_texture.c
index 56313e9..e719f7f 100644
--- a/src/gallium/drivers/r600/r600_texture.c
+++ b/src/gallium/drivers/r600/r600_texture.c
@@ -169,6 +169,10 @@ static unsigned r600_texture_get_stride(struct pipe_screen *screen,
 	stride = util_format_get_stride(ptex->format, width);
 	if (chipc == EVERGREEN)
 		stride = align(stride, 512);
+
+        if (ptex->bind & PIPE_BIND_RENDER_TARGET)
+		stride = align(stride, 512);
+
 	return stride;
 }