this reworks PIPE_CAP_PREFER_BLIT_BASED_TEXTURE_TRANSFER into an enum as PIPE_CAP_TEXTURE_TRANSFER_MODES, enabling drivers to choose a (sometimes) faster, compute-based download mechanism based on a new pipe_screen hook compute pbo download is implemented using shaders with a prolog to convert the input format to generic rgb float values, then an epilog to convert to the output value. the prolog and epilog are determined based on a vec4 of packed ubo data which is dynamically updated based on the API usage currently, the only known limitations are: * GL_ARB_texture_cube_map_array is broken somehow (and disabled) * AMD hardware somehow can't do depth readback? otherwise it should work for every possible case Acked-by: Pierre-Eric Pelloux-Prayer <pierre-eric.pelloux-prayer@amd.com> Acked-by: Marek Olšák <marek.olsak@amd.com> Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/11984> |
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.. | ||
cso | ||
buffermapping.rst | ||
context.rst | ||
cso.rst | ||
debugging.rst | ||
distro.rst | ||
format.rst | ||
glossary.rst | ||
index.rst | ||
intro.rst | ||
pipeline.txt | ||
postprocess.rst | ||
resources.rst | ||
screen.rst | ||
tgsi.rst |