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authorBruce Cherniak <[email protected]>2017-11-08 18:39:37 -0600
committerGeorge Kyriazis <[email protected]>2017-11-10 08:55:42 -0600
commitd473f91758143b1dd320146ddfe6e697ccc77c0d (patch)
tree55244ae547aaea122985f6967f7cb318542f4a03 /src/gallium/auxiliary/util/u_bitcast.h
parentfecd04a66ae6207a10dbc6885411e89e1e5299d1 (diff)
swr: Fixed an uncommon freed-memory access during state validation
State validation is performed during clear and draw calls. Validation during clear was still accessing vertex buffer state. When the currently set vertex buffers are client arrays, this could lead to accessing freed memory. Such is the case with the VMD application. Previously, vertex buffer validation depended on a dirty bit or the draw info indicating an indexed draw. This required special handling for clears. But, vertex buffer validation still occurred which was unnecessary and wrong. Now, only minimal validation is performed during clear, deferring the remainder to the next draw. And, by setting the dirty bit in swr_draw_vbo for indexed draws, vertex buffer validation is only dependent upon a single dirty bit. This fixes a bug exposed by the VMD application when changing models. Reviewed-By: George Kyriazis <[email protected]>
Diffstat (limited to 'src/gallium/auxiliary/util/u_bitcast.h')
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