Mesa (gallium-mesa-7.4): st: fix crash when using accum_mad()
Alan Hourihane
alanh at kemper.freedesktop.org
Tue May 12 11:40:02 UTC 2009
Module: Mesa
Branch: gallium-mesa-7.4
Commit: 699162286de9a6bf7bdae5f2fc9104fd5e8d8a34
URL: http://cgit.freedesktop.org/mesa/mesa/commit/?id=699162286de9a6bf7bdae5f2fc9104fd5e8d8a34
Author: Alan Hourihane <alanh at vmware.com>
Date: Tue May 12 12:40:53 2009 +0100
st: fix crash when using accum_mad()
---
src/mesa/state_tracker/st_cb_accum.c | 5 ++++-
1 files changed, 4 insertions(+), 1 deletions(-)
diff --git a/src/mesa/state_tracker/st_cb_accum.c b/src/mesa/state_tracker/st_cb_accum.c
index a4e72b4..1ddc628 100644
--- a/src/mesa/state_tracker/st_cb_accum.c
+++ b/src/mesa/state_tracker/st_cb_accum.c
@@ -160,7 +160,10 @@ accum_mad(GLcontext *ctx, GLfloat scale, GLfloat bias,
struct st_renderbuffer *acc_strb)
{
struct pipe_screen *screen = ctx->st->pipe->screen;
- struct pipe_surface *acc_ps = acc_strb->surface;
+// struct pipe_surface *acc_ps = acc_strb->surface;
+ struct pipe_surface *acc_ps = screen->get_tex_surface(screen, acc_strb->texture, 0, 0, 0,
+ (PIPE_BUFFER_USAGE_CPU_WRITE |
+ PIPE_BUFFER_USAGE_CPU_READ));
GLubyte *map;
map = screen->surface_map(screen, acc_ps,
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