diff options
| author | Chad Versace <chad.versace@linux.intel.com> | 2014-11-18 15:41:35 -0800 |
|---|---|---|
| committer | Chad Versace <chad.versace@linux.intel.com> | 2014-11-18 19:16:45 -0800 |
| commit | b69c7c5dac4e2615e89cef773173484421830a8f (patch) | |
| tree | 23500b6a98c85a793d7b21dc4a9250d957339518 | |
| parent | 80bffde0a28c533b263bab97470362b0eec54e9f (diff) | |
i965: Fix segfault in WebGL Conformance on Ivybridge
Fixes regression of WebGL Conformance test texture-size-limit [1] on
Ivybridge Mobile GT2 0x0166 with Google Chrome R38.
Regression introduced by
commit 6c044231535b93c5d16404528946cad618d96bd9
Author: Kenneth Graunke <kenneth@whitecape.org>
Date: Sun Feb 2 02:58:42 2014 -0800
i965: Bump GL_MAX_CUBE_MAP_TEXTURE_SIZE to 8192.
The test regressed because the pointer offset arithmetic in
intel_miptree_map_gtt() overflows for large textures. The pointer
arithmetic is not 64-bit safe.
[1] https://github.com/KhronosGroup/WebGL/blob/52f0dc240f04dce31b1b8e2b8107fe2b8332dc90/sdk/tests/conformance/textures/texture-size-limit.html
Cc: "10.3 10.4" <mesa-stable@lists.freedesktop.org>
Fixes: https://bugs.freedesktop.org/show_bug.cgi?id=78770
Fixes: Intel CHRMOS-1377
Reported-by: Lu Hua <huax.lu@intel.com>
Reviewed-by: Ian Romanic <ian.d.romanick@intel.com>
Signed-off-by: Chad Versace <chad.versace@linux.intel.com>
| -rw-r--r-- | src/mesa/drivers/dri/i965/intel_mipmap_tree.c | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/src/mesa/drivers/dri/i965/intel_mipmap_tree.c b/src/mesa/drivers/dri/i965/intel_mipmap_tree.c index 8fda25d0842..7081f1d3557 100644 --- a/src/mesa/drivers/dri/i965/intel_mipmap_tree.c +++ b/src/mesa/drivers/dri/i965/intel_mipmap_tree.c @@ -1745,8 +1745,8 @@ intel_miptree_map_gtt(struct brw_context *brw, unsigned int bw, bh; void *base; unsigned int image_x, image_y; - int x = map->x; - int y = map->y; + intptr_t x = map->x; + intptr_t y = map->y; /* For compressed formats, the stride is the number of bytes per * row of blocks. intel_miptree_get_image_offset() already does @@ -1772,7 +1772,8 @@ intel_miptree_map_gtt(struct brw_context *brw, map->ptr = base + y * map->stride + x * mt->cpp; } - DBG("%s: %d,%d %dx%d from mt %p (%s) %d,%d = %p/%d\n", __FUNCTION__, + DBG("%s: %d,%d %dx%d from mt %p (%s) " + "%"PRIiPTR",%"PRIiPTR" = %p/%d\n", __FUNCTION__, map->x, map->y, map->w, map->h, mt, _mesa_get_format_name(mt->format), x, y, map->ptr, map->stride); |