aboutsummaryrefslogtreecommitdiff
path: root/mesalib/src/mesa/state_tracker/st_cb_fbo.c
diff options
context:
space:
mode:
authormarha <marha@users.sourceforge.net>2011-11-25 08:22:48 +0100
committermarha <marha@users.sourceforge.net>2011-11-25 08:22:48 +0100
commita0b4a1330be6a36ad095222d2ea83927cd33514d (patch)
tree616920ca608751e843c92c9815069f43789e3097 /mesalib/src/mesa/state_tracker/st_cb_fbo.c
parent45710577f374972946a8eb37833a9c94e5a299bf (diff)
downloadvcxsrv-a0b4a1330be6a36ad095222d2ea83927cd33514d.tar.gz
vcxsrv-a0b4a1330be6a36ad095222d2ea83927cd33514d.tar.bz2
vcxsrv-a0b4a1330be6a36ad095222d2ea83927cd33514d.zip
mesa xserver pixman git update 25 nov 2011
Diffstat (limited to 'mesalib/src/mesa/state_tracker/st_cb_fbo.c')
-rw-r--r--mesalib/src/mesa/state_tracker/st_cb_fbo.c14
1 files changed, 12 insertions, 2 deletions
diff --git a/mesalib/src/mesa/state_tracker/st_cb_fbo.c b/mesalib/src/mesa/state_tracker/st_cb_fbo.c
index a351d1197..1e8ec0556 100644
--- a/mesalib/src/mesa/state_tracker/st_cb_fbo.c
+++ b/mesalib/src/mesa/state_tracker/st_cb_fbo.c
@@ -75,8 +75,18 @@ st_renderbuffer_alloc_storage(struct gl_context * ctx,
enum pipe_format format;
struct pipe_surface surf_tmpl;
- format = st_choose_renderbuffer_format(screen, internalFormat,
- rb->NumSamples);
+ if (internalFormat == GL_RGBA16_SNORM && strb->software) {
+ /* Special case for software accum buffers. Otherwise, if the
+ * call to st_choose_renderbuffer_format() fails (because the
+ * driver doesn't support signed 16-bit/channel colors) we'd
+ * just return without allocating the software accum buffer.
+ */
+ format = PIPE_FORMAT_R16G16B16A16_SNORM;
+ }
+ else {
+ format = st_choose_renderbuffer_format(screen, internalFormat,
+ rb->NumSamples);
+ }
if (format == PIPE_FORMAT_NONE) {
return FALSE;