Vulkan: remove stale compile-time feature flags (b004) - #299
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- USE_VBO_GRID: never defined (SF_GRID deliberately off VBO path per tr_local.h); remove dead grid VBO estimate/queue/pack paths in vk_vbo.c and tr_surface.c. - USE_TESS_NEEDS_NORMAL / USE_TESS_NEEDS_ST2: commented-out defines with no struct fields; remove preprocessor guards that only wrapped always-on paths. - USE_VK_PBR dead #else: unwrap non-PBR shader module init/destroy fallbacks in vk_shader_modules.c and vk_shutdown.c; flatten VK_CUBEMAP/VK_PBR_BRDFLUT nesting in tr_local.h; unwrap reactive/object-id storage descriptor (void)0 else stubs. - USE_DEDICATED_ALLOCATION: always defined in vk.h; drop redundant #ifndef override in vk_instance.c. Behavior unchanged on the active PBR/VBO/dedicated-allocation paths. Co-authored-by: Tim Fox <timfox@outlook.com>
USE_VK_PBR is unconditionally defined in tr_local.h for the Vulkan renderer. Remove non-PBR #else fallbacks in pipeline creation, vertex layout, descriptor counts, and BSP/surface helpers while keeping shader templates and runtime vk.pbrActive gating intact. Adds scripts/tools/unwrap_use_vk_pbr.py for future cleanups. Co-authored-by: Tim Fox <timfox@outlook.com>
Extend feature-flag cleanup beyond dead branches (USE_VBO_GRID, USE_TESS_NEEDS_*) by unwrapping compile-time guards for macros that are permanently defined in the Vulkan renderer: - USE_VBO, USE_FOG_COLLAPSE, USE_VK_PBR, USE_VULKAN - VK_CUBEMAP, VK_PBR_BRDFLUT Adds scripts/tools/unwrap_compile_flags.py for repeatable unwrapping and tests/scripts/test_stale_compile_flags.sh to block reintroduction of removed guards and orphan #endif regressions. Fixes stray preprocessor artifacts in vk_object_id.c and tr_shade.c left after guard removal. Co-authored-by: Tim Fox <timfox@outlook.com>
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Summary
Reduces renderer technical debt by removing compile-time feature flags and dead branches that are permanently on (or never defined) in the Vulkan-only build.
Branch:
cursor/feature-flag-cleanup-b004→mainFlags removed
USE_VBO_GRIDtr_local.hdocuments SF_GRID stays off the static VBO pathUSE_TESS_NEEDS_NORMAL/USE_TESS_NEEDS_ST2USE_VK_PBRdead#elseUSE_DEDICATED_ALLOCATION#ifndefvk.hUSE_VBO,USE_FOG_COLLAPSE,USE_VULKAN,VK_CUBEMAP,VK_PBR_BRDFLUTguardsr_vbo,r_pbr, etc.USE_VULKAN#elsestubsTooling
scripts/tools/unwrap_use_vk_pbr.py— unwrap dead PBR#elsebranchesscripts/tools/unwrap_compile_flags.py— repeatable unwrap for always-on macrostests/scripts/test_stale_compile_flags.sh— blocks reintroduced stale guardsTest plan
tests/scripts/test_vulkan_regression_source_guards.shtests/scripts/test_stale_compile_flags.sh(new)tests/scripts/test_cpp20_sources.shrenderers/./scripts/smoke_test.sh(full build; prior runs blocked by unrelated FreeUSD FetchContent env issue in cloud VM)Not changed (low confidence)
-DUSE_VK_PBRfor variant generationUSE_VULKAN_RTX,USE_EXPERIMENTAL_RENDERERS,USE_VUDA,USE_IMGUI