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gallium: add a resource flag to say no over allocation. 

llvmpipe overallocates buffers for buffers used as render targets,
however this breaks some vulkan apps (UE4), so add a workaround
flag to force llvmpipe to not overallocate certain buffers.

Reviewed-by: Roland Scheidegger <sroland@vmware.com>
Reviewed-by: Marek Olšák <marek.olsak@amd.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/6082>
This commit is contained in:
Dave Airlie 2020-06-19 16:25:49 +10:00
parent e6c7ca218d
commit ecb617a6a7
1 changed files with 1 additions and 0 deletions
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src/gallium/include/pipe/p_defines.h
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@ -512,6 +512,7 @@ enum pipe_flush_flags
#define PIPE_RESOURCE_FLAG_SPARSE (1 << 3)
#define PIPE_RESOURCE_FLAG_SINGLE_THREAD_USE (1 << 4)
#define PIPE_RESOURCE_FLAG_ENCRYPTED (1 << 5)
#define PIPE_RESOURCE_FLAG_DONT_OVER_ALLOCATE (1 << 6)
#define PIPE_RESOURCE_FLAG_DRV_PRIV (1 << 8) /* driver/winsys private */
#define PIPE_RESOURCE_FLAG_FRONTEND_PRIV (1 << 24) /* gallium frontend private */