This series enables Hierarchical depth buffer rendering and fast depth clears for render passes with a single subpass running on platforms BDW+. Platforms pre-BDW can test this feature with an environment variable. The FPS of some demos are roughly estimated to increase by as much as ~50% on a SKL GT2.
This feature was partially implemented by Chad and Jason. Where applicable, I've tried to accurately note the modifications I've made to their patches without being too verbose. I've also tried to maintain the authorship of their patches when the core of their work remained. The only patch which wasn't retained due to the core of the work being lost was a patch to create a HiZ surface. This was replaced with my patch to update an existing function which does so. This diverged enough for me to feel at risk of misrepresenting the original author's work. Any suggestions with respect to my annotating method, notices of incorrectly attributed credit, or general comments are welcome. Chad Versace (4): anv: Add anv_image::hiz_surface anv: Add func anv_image_has_hiz() anv: Allocate hiz surface genX/cmd_buffer: Enable rendering to HiZ Jason Ekstrand (3): anv: Move BindImageMemory to anv_image.c anv/image: Memset hiz surfaces to 0 when binding memory anv/cmd_buffer: Add code for performing HZ operations Nanley Chery (5): isl: Correct a comment in the isl_format enum isl: Update isl_surf_get_hiz_surf() isl: Make MSAA pixel scaling function public genX/cmd_buffer: Enable fast depth clears anv/TODO: Update the HiZ task src/intel/isl/isl.c | 41 ++++++++++-- src/intel/isl/isl.h | 6 +- src/intel/vulkan/TODO | 2 +- src/intel/vulkan/anv_device.c | 20 ------ src/intel/vulkan/anv_genX.h | 3 + src/intel/vulkan/anv_image.c | 67 ++++++++++++++++++- src/intel/vulkan/anv_pass.c | 11 +++ src/intel/vulkan/anv_private.h | 18 +++++ src/intel/vulkan/gen7_cmd_buffer.c | 5 ++ src/intel/vulkan/gen8_cmd_buffer.c | 134 +++++++++++++++++++++++++++++++++++++ src/intel/vulkan/genX_cmd_buffer.c | 45 +++++++++++-- 11 files changed, 313 insertions(+), 39 deletions(-) -- 2.9.3 _______________________________________________ mesa-dev mailing list mesa-dev@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/mesa-dev