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authorChad Versace <chad@chad-versace.us>2011-06-05 19:48:19 -0700
committerChad Versace <chad@chad-versace.us>2011-06-08 10:08:33 -0700
commit263daba7e6afb37bd471fdc8dd8e4458da0a45ff (patch)
tree4b27e014293c97ab34411af02e11266d1ed541c8 /src/intel_dri.c
parent038f29c259c1463c0bff12f5f8f0b228c02e45b3 (diff)
dri: Do not create DRI2 buffers for unrecognized DRI2 buffer tokens
Before this commit, if a client were to request an unrecognized DRI2 buffer, such as DRI2BufferStencil, then I830DRI2CreateBuffer() allocated and returned an X-tiled buffer by accident. The problem was that unrecognized tokens were caught by the default case of a switch statement. Now, when given unrecognized DRI2 tokens, I830DRI2CreateBuffers() returns null. This shouldn't break older Mesa versions, because they never query (via DRI2GetBuffersWithFormat) for the drawable's DRI2BufferStencil. CC: Eric Anholt <eric@anholt.net> CC: Ian Romanick <idr@freedesktop.org> CC: Kenneth Graunke <kenneth@whitecape.org> CC: Kristian Høgsberg <krh@bitplanet.net Signed-off-by: Chad Versace <chad@chad-versace.us>
Diffstat (limited to 'src/intel_dri.c')
-rw-r--r--src/intel_dri.c14
1 files changed, 12 insertions, 2 deletions
diff --git a/src/intel_dri.c b/src/intel_dri.c
index 48d0f566..4571d075 100644
--- a/src/intel_dri.c
+++ b/src/intel_dri.c
@@ -338,10 +338,20 @@ I830DRI2CreateBuffer(DrawablePtr drawable, unsigned int attachment,
hint |= INTEL_CREATE_PIXMAP_TILING_Y;
break;
}
- default:
+ case DRI2BufferAccum:
+ case DRI2BufferBackLeft:
+ case DRI2BufferBackRight:
+ case DRI2BufferFakeFrontLeft:
+ case DRI2BufferFakeFrontRight:
+ case DRI2BufferFrontLeft:
+ case DRI2BufferFrontRight:
hint |= INTEL_CREATE_PIXMAP_TILING_X;
break;
- }
+ default:
+ free(privates);
+ free(buffer);
+ return NULL;
+ }
}
pixmap = screen->CreatePixmap(screen,