Mesa (master): mesa: Handle zero-stride arrays in _mesa_update_array_max_element()
Fredrik Höglund
fredrik at kemper.freedesktop.org
Thu Nov 7 17:20:58 UTC 2013
Module: Mesa
Branch: master
Commit: 965900e8305d3a3b966c97ad37699cb73ba3e4f1
URL: http://cgit.freedesktop.org/mesa/mesa/commit/?id=965900e8305d3a3b966c97ad37699cb73ba3e4f1
Author: Fredrik Höglund <fredrik at kde.org>
Date: Thu Apr 4 19:55:50 2013 +0200
mesa: Handle zero-stride arrays in _mesa_update_array_max_element()
Reviewed-by: Eric Anholt <eric at anholt.net>
Reviewed-by: Ian Romanick <ian.d.romanick at intel.com>
---
src/mesa/main/varray.h | 6 ++++--
1 files changed, 4 insertions(+), 2 deletions(-)
diff --git a/src/mesa/main/varray.h b/src/mesa/main/varray.h
index a75cb7d..8a9487c 100644
--- a/src/mesa/main/varray.h
+++ b/src/mesa/main/varray.h
@@ -51,8 +51,10 @@ _mesa_update_array_max_element(struct gl_client_array *array)
GLsizeiptrARB bufSize = (GLsizeiptrARB) array->BufferObj->Size;
if (offset < bufSize) {
- array->_MaxElement = (bufSize - offset + array->StrideB
- - array->_ElementSize) / array->StrideB;
+ const GLuint stride = array->StrideB ?
+ array->StrideB : array->_ElementSize;
+ array->_MaxElement = (bufSize - offset + stride
+ - array->_ElementSize) / stride;
}
else {
array->_MaxElement = 0;
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