Hi, We already have seen extensions like VK_IMG_format_pvrtc introduce new formats. The way the Vulkan specification seems to deal with new formats is to place them at an offset based on the associated extension number.
The anv driver currently stores the formats in an array indexed by the format id. This is kind of convenient and avoids really long switch statements. Unfortunately new formats with id numbers well beyong 10000000 mean we cannot keep on doing this. This series introduce new generated defines for extension numbers so we can deal with those new id using an indirection table based off the extension number. The first 3 patches are just rework, the generated defines are in patch 4 and associated helpers in patch 5. Cheers, Lionel Landwerlin (5): vulkan: enum generator: align function declarations/prototypes vulkan: enum generator: sort enums by names vulkan: enum generator: make registry more flexible vulkan: enum generator: generate extension number defines vulkan: util: add macros to extract extension/offset number from enums src/vulkan/util/gen_enum_to_str.py | 68 ++++++++++++++++++++++++-------------- src/vulkan/util/vk_util.h | 7 ++++ 2 files changed, 51 insertions(+), 24 deletions(-) -- 2.13.2 _______________________________________________ mesa-dev mailing list mesa-dev@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/mesa-dev
