Hi Marek This and the patch before are Tested-by: Edmondo Tommasina <edmondo.tommas...@gmail.com>
Tested with: * The Witcher 2 * Two Worlds * The Talos Principle No regressions. Performance seems similar. I'm quite CPU limited (Phenom II X3 720) so I don't expect a measurable performance increase. OpenGL renderer string: Gallium 0.4 on AMD POLARIS10 (DRM 3.3.0 / 4.8.0-rc6, LLVM 3.9.0) OpenGL core profile version string: 4.3 (Core Profile) Mesa 12.1.0-devel (git-8c51490) Thanks edmondo On Wed, Oct 12, 2016 at 3:54 PM, Marek Olšák <mar...@gmail.com> wrote: > From: Marek Olšák <marek.ol...@amd.com> > > so that decompress blits aren't needed and depth texturing needs less > memory bandwidth. > > Z16 and Z24 are promoted to Z32_FLOAT by the driver, because TC-compatible > HTILE only supports Z32_FLOAT. This doubles memory footprint for Z16. > The format promotion is not visible to state trackers. > > This is part of TC-compatible renderbuffer compression, which has 3 parts: > DCC, HTILE, FMASK. Only TC-compatible FMASK compression is missing now. > > I don't see a measurable increase in performance though. > > (I tested Talos Principle and DiRT: Showdown, the latter is improved by > 0.5%, which is almost noise, and it originally used layered Z16, > so at least we know that Z16 promoted to Z32F isn't slower now) > --- > src/gallium/drivers/radeon/r600_pipe_common.h | 3 ++ > src/gallium/drivers/radeon/r600_texture.c | 67 > ++++++++++++++++++++++---- > src/gallium/drivers/radeon/radeon_winsys.h | 4 ++ > src/gallium/drivers/radeonsi/si_blit.c | 11 ++++- > src/gallium/drivers/radeonsi/si_descriptors.c | 7 ++- > src/gallium/drivers/radeonsi/si_shader.c | 18 ++++++- > src/gallium/drivers/radeonsi/si_state.c | 39 +++++++++++++-- > src/gallium/drivers/radeonsi/si_state_draw.c | 3 +- > src/gallium/winsys/amdgpu/drm/amdgpu_surface.c | 57 ++++++++++++++++++++-- > 9 files changed, 185 insertions(+), 24 deletions(-) _______________________________________________ mesa-dev mailing list mesa-dev@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/mesa-dev