[Mesa-dev] [PATCH 0/9] Add core and gallium ARB_query_buffer_object support

[Ilia Mirkin]

This patchset doesn't actually add any hardware support. I want to see what
people think of this interface, and would like to adjust it before I do an
implementation on nvc0. TBH, I can't say I really love either the dd nor the
gallium functions I'm adding. However I also can't think of a particularly
cleaner way of doing this.

I had an original version of this code which unconditionally wrote a 1 for
GL_QUERY_AVAILABLE, but my latest thinking is that you could potentially have
totally unsynchronized engines that were writing these things out, and so
for a query to not be available is something that could legitimately make
sense. So I'm leaving that up to the driver.

Also for consistency, I'm having the (mesa) driver write the GL_QUERY_TARGET
value in rather than the core, as it's unwieldy to do it in the core. A
hypothetical driver might also want to do or not do various synchronization.

As there's no HW support, this is wholly untested beyond compilation.

Ilia Mirkin (5):
  mesa: add driver interface for writing query results to buffers
  mesa: add core implementation of ARB_query_buffer_object
  gallium: add a way to store query result into buffer
  gallium: add PIPE_CAP_QUERY_BUFFER_OBJECT
  st/mesa: add query buffer support

Rafal Mielniczuk (4):
  glapi: Add xml infrastructure for ARB_query_buffer_object
  mesa: Add ARB_query_buffer_object extension flag
  mesa: Add QueryBuffer to context
  mesa: Handle QUERY_BUFFER_BINDING in GetIntegerv

 src/gallium/docs/source/context.rst              |   5 +
 src/gallium/docs/source/screen.rst               |   2 +
 src/gallium/drivers/freedreno/freedreno_screen.c |   1 +
 src/gallium/drivers/ilo/ilo_screen.c             |   1 +
 src/gallium/drivers/llvmpipe/lp_screen.c         |   1 +
 src/gallium/drivers/nouveau/nv30/nv30_screen.c   |   1 +
 src/gallium/drivers/nouveau/nv50/nv50_screen.c   |   1 +
 src/gallium/drivers/nouveau/nvc0/nvc0_screen.c   |   1 +
 src/gallium/drivers/r300/r300_screen.c           |   1 +
 src/gallium/drivers/r600/r600_pipe.c             |   1 +
 src/gallium/drivers/radeonsi/si_pipe.c           |   1 +
 src/gallium/drivers/softpipe/sp_screen.c         |   1 +
 src/gallium/drivers/svga/svga_screen.c           |   1 +
 src/gallium/drivers/vc4/vc4_screen.c             |   1 +
 src/gallium/drivers/virgl/virgl_screen.c         |   1 +
 src/gallium/include/pipe/p_context.h             |  24 ++
 src/gallium/include/pipe/p_defines.h             |   3 +
 src/mapi/glapi/gen/gl_API.xml                    |   9 +-
 src/mesa/main/bufferobj.c                        |  14 ++
 src/mesa/main/dd.h                               |   9 +
 src/mesa/main/extensions_table.h                 |   1 +
 src/mesa/main/get.c                              |   5 +
 src/mesa/main/get_hash_params.py                 |   3 +
 src/mesa/main/mtypes.h                           |   3 +
 src/mesa/main/queryobj.c                         | 280 +++++++++++------------
 src/mesa/state_tracker/st_cb_bufferobjects.c     |   3 +
 src/mesa/state_tracker/st_cb_queryobj.c          | 100 +++++++-
 src/mesa/state_tracker/st_cb_texturebarrier.c    |   3 +
 src/mesa/state_tracker/st_extensions.c           |   1 +
 29 files changed, 328 insertions(+), 150 deletions(-)

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2.4.10