This provides enough support in TGSI to support shader buffers. I do away with the defunct TGSI_FILE_RESOURCE (renaming it into TGSI_FILE_IMAGE to work with pipe_image_view), and add a brand new TGSI_FILE_BUFFER. At the declaration level, this can have an ATOMIC qualifier (and later a SHARED qualifier for compute shaders).
I also add memory qualifiers to LOAD/STORE opcodes, which can convey the coherent/volatile/restrict flags as specified in the GLSL. I also modified all of the formerly resource opcodes to work on both buffers and images. For images they will derive the format from the IMAGE declaration, while buffers are format-less by definition. This is still missing a way to implement memory barriers, that will come soon, and is not going to affect anything else I do in this series. For the full series I'm working on, you can look at https://github.com/imirkin/mesa/commits/atomic3 which exposes ARB_shader_atomic_counters and ARB_shader_storage_buffer_objects on nvc0+ (but it won't work on maxwell -- need to add emission of atomic ops and cache control). However this is a nice self-contained chunk to start with. Ilia Mirkin (8): tgsi: add ureg support for image decls ureg: add buffer support to ureg tgsi: provide a way to encode memory qualifiers for SSBO tgsi: add a is_store property tgsi: update atomic op docs gallium: add PIPE_SHADER_CAP_MAX_SHADER_BUFFERS gallium: add PIPE_CAP_SHADER_BUFFER_OFFSET_ALIGNMENT gallium: add a RESQ opcode to query info about a resource src/gallium/auxiliary/gallivm/lp_bld_limits.h | 1 + src/gallium/auxiliary/tgsi/tgsi_build.c | 112 ++++-- src/gallium/auxiliary/tgsi/tgsi_dump.c | 25 +- src/gallium/auxiliary/tgsi/tgsi_exec.h | 1 + src/gallium/auxiliary/tgsi/tgsi_info.c | 446 ++++++++++----------- src/gallium/auxiliary/tgsi/tgsi_info.h | 1 + src/gallium/auxiliary/tgsi/tgsi_parse.c | 8 +- src/gallium/auxiliary/tgsi/tgsi_parse.h | 3 +- src/gallium/auxiliary/tgsi/tgsi_strings.c | 12 +- src/gallium/auxiliary/tgsi/tgsi_strings.h | 2 + src/gallium/auxiliary/tgsi/tgsi_text.c | 42 +- src/gallium/auxiliary/tgsi/tgsi_ureg.c | 182 +++++++++ src/gallium/auxiliary/tgsi/tgsi_ureg.h | 23 ++ src/gallium/docs/source/screen.rst | 8 + src/gallium/docs/source/tgsi.rst | 105 ++--- src/gallium/drivers/freedreno/freedreno_screen.c | 3 + src/gallium/drivers/i915/i915_screen.c | 1 + src/gallium/drivers/ilo/ilo_screen.c | 1 + src/gallium/drivers/ilo/shader/toy_tgsi.c | 8 +- src/gallium/drivers/llvmpipe/lp_screen.c | 1 + .../drivers/nouveau/codegen/nv50_ir_from_tgsi.cpp | 12 +- src/gallium/drivers/nouveau/nv30/nv30_screen.c | 3 + src/gallium/drivers/nouveau/nv50/nv50_screen.c | 2 + src/gallium/drivers/nouveau/nvc0/nvc0_screen.c | 2 + src/gallium/drivers/r300/r300_screen.c | 3 + src/gallium/drivers/r600/r600_pipe.c | 2 + src/gallium/drivers/radeonsi/si_pipe.c | 3 + src/gallium/drivers/softpipe/sp_screen.c | 1 + src/gallium/drivers/svga/svga_screen.c | 4 + src/gallium/drivers/svga/svga_tgsi_vgpu10.c | 2 + src/gallium/drivers/vc4/vc4_screen.c | 3 + src/gallium/drivers/virgl/virgl_screen.c | 1 + src/gallium/include/pipe/p_defines.h | 2 + src/gallium/include/pipe/p_shader_tokens.h | 28 +- 34 files changed, 729 insertions(+), 324 deletions(-) -- 2.4.10 _______________________________________________ mesa-dev mailing list mesa-dev@lists.freedesktop.org http://lists.freedesktop.org/mailman/listinfo/mesa-dev
