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glthread,gallium: add a CAP to disable glBufferSubData optimization in glthread

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it regresses performance on iris

Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/20379>
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Marek Olšák
2022-12-24 11:04:08 -05:00
parent 83b31b11a5
commit b9caddb4a7
7 changed files with 11 additions and 0 deletions
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docs/gallium/screen.rst
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@@ -638,6 +638,7 @@ The integer capabilities:
* ``PIPE_CAP_MAX_CONSTANT_BUFFER_SIZE_UINT``: Maximum bound constant buffer size in bytes. This is unsigned integer with the maximum of 4GB - 1. This applies to all constant buffers used by UBOs, unlike ``PIPE_SHADER_CAP_MAX_CONST_BUFFER0_SIZE``, which is specifically for GLSL uniforms.
* ``PIPE_CAP_HARDWARE_GL_SELECT``: Enable hardware accelerated GL_SELECT for this driver.
* ``PIPE_CAP_DEVICE_PROTECTED_CONTEXT``: Whether the device supports protected / encrypted context which can manipulate protected / encrypted content (some devices might need protected contexts to access protected content, whereas ``PIPE_CAP_DEVICE_PROTECTED_SURFACE`` does not require any particular context to do so).
* ``PIPE_CAP_ALLOW_GLTHREAD_BUFFER_SUBDATA_OPT``: Whether to allow glthread to convert glBufferSubData to glCopyBufferSubData. This may improve or worsen performance depending on your driver.
.. _pipe_capf: