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Diffstat (limited to 'src/gallium/docs/source/context.rst')
| -rw-r--r-- | src/gallium/docs/source/context.rst | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/src/gallium/docs/source/context.rst b/src/gallium/docs/source/context.rst index 27d352b7a39..0242dedbf3b 100644 --- a/src/gallium/docs/source/context.rst +++ b/src/gallium/docs/source/context.rst @@ -295,6 +295,23 @@ for a driver to batch multiple blits with the same source and destination. +Stream Output +^^^^^^^^^^^^^ + +Stream output, also known as transform feedback allows writing the results of the +vertex pipeline (after the geometry shader or vertex shader if no geometry shader +is present) to be written to a buffer created with a ``PIPE_BIND_STREAM_OUTPUT`` +flag. + +First a stream output state needs to be created with the +``create_stream_output_state`` call. It specific the details of what's being written, +to which buffer and with what kind of a writemask. + +Then target buffers needs to be set with the call to ``set_stream_output_buffers`` +which sets the buffers and the offsets from the start of those buffer to where +the data will be written to. + + Transfers ^^^^^^^^^ |