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author | Feng Chen <vonchenplus@gmail.com> | 2021-09-08 04:28:09 +0200 |
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committer | Feng Chen <vonchenplus@gmail.com> | 2021-09-08 04:30:00 +0200 |
commit | b1e655f89824bb1c43fc5160cd879b60bb60dbad (patch) | |
tree | 69f6a100891bda53954742f03c338b019276e86d /src/shader_recompiler/backend/spirv | |
parent | Detail adjustment (diff) | |
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Diffstat (limited to 'src/shader_recompiler/backend/spirv')
-rw-r--r-- | src/shader_recompiler/backend/spirv/emit_context.cpp | 27 |
1 files changed, 14 insertions, 13 deletions
diff --git a/src/shader_recompiler/backend/spirv/emit_context.cpp b/src/shader_recompiler/backend/spirv/emit_context.cpp index 118a80165..2885e6799 100644 --- a/src/shader_recompiler/backend/spirv/emit_context.cpp +++ b/src/shader_recompiler/backend/spirv/emit_context.cpp @@ -430,15 +430,14 @@ Id DescType(EmitContext& ctx, Id sampled_type, Id pointer_type, u32 count) { } } -size_t FindFistUnUsedLocation(const std::bitset<IR::NUM_GENERICS>& used_locations, - size_t previous_unused_location) { - size_t location = previous_unused_location + 1; - while (location < used_locations.size() && used_locations.test(location)) - ++location; - if (location == used_locations.size()) { - throw RuntimeError("Unable to get an unused location for legacy attribute"); - } - return location; +size_t FindNextUnusedLocation(const std::bitset<IR::NUM_GENERICS>& used_locations, + size_t start_offset) { + for (size_t location = start_offset; location < used_locations.size(); ++location) { + if (!used_locations.test(location)) { + return location; + } + } + throw RuntimeError("Unable to get an unused location for legacy attribute"); } } // Anonymous namespace @@ -1280,7 +1279,7 @@ void EmitContext::DefineInputs(const IR::Program& program) { } size_t previous_unused_location = 0; if (loads.AnyComponent(IR::Attribute::ColorFrontDiffuseR)) { - size_t location = FindFistUnUsedLocation(used_locations, previous_unused_location); + const size_t location = FindNextUnusedLocation(used_locations, previous_unused_location); previous_unused_location = location; used_locations.set(location); const Id id{DefineInput(*this, F32[4], true)}; @@ -1289,7 +1288,8 @@ void EmitContext::DefineInputs(const IR::Program& program) { } for (size_t index = 0; index < NUM_FIXEDFNCTEXTURE; ++index) { if (loads.AnyComponent(IR::Attribute::FixedFncTexture0S + index * 4)) { - size_t location = FindFistUnUsedLocation(used_locations, previous_unused_location); + const size_t location = + FindNextUnusedLocation(used_locations, previous_unused_location); previous_unused_location = location; used_locations.set(location); const Id id{DefineInput(*this, F32[4], true)}; @@ -1356,7 +1356,7 @@ void EmitContext::DefineOutputs(const IR::Program& program) { } size_t previous_unused_location = 0; if (info.stores.AnyComponent(IR::Attribute::ColorFrontDiffuseR)) { - size_t location = FindFistUnUsedLocation(used_locations, previous_unused_location); + const size_t location = FindNextUnusedLocation(used_locations, previous_unused_location); previous_unused_location = location; used_locations.set(location); const Id id{DefineOutput(*this, F32[4], invocations)}; @@ -1365,7 +1365,8 @@ void EmitContext::DefineOutputs(const IR::Program& program) { } for (size_t index = 0; index < NUM_FIXEDFNCTEXTURE; ++index) { if (info.stores.AnyComponent(IR::Attribute::FixedFncTexture0S + index * 4)) { - size_t location = FindFistUnUsedLocation(used_locations, previous_unused_location); + const size_t location = + FindNextUnusedLocation(used_locations, previous_unused_location); previous_unused_location = location; used_locations.set(location); const Id id{DefineOutput(*this, F32[4], invocations)}; |