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author | Liam <byteslice@airmail.cc> | 2022-04-01 23:08:40 +0200 |
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committer | Liam <byteslice@airmail.cc> | 2022-04-01 23:08:40 +0200 |
commit | 7d5a38ea6cb692cdeb5565b36b283d1a34d5d27f (patch) | |
tree | a443cd005e62a7563fd9c8c7c9a199668774a769 /src/shader_recompiler/backend/glsl/emit_glsl_context_get_set.cpp | |
parent | shader_recompiler: support const buffer indirect addressing on OpenGL SPIR-V (diff) | |
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Diffstat (limited to 'src/shader_recompiler/backend/glsl/emit_glsl_context_get_set.cpp')
-rw-r--r-- | src/shader_recompiler/backend/glsl/emit_glsl_context_get_set.cpp | 25 |
1 files changed, 17 insertions, 8 deletions
diff --git a/src/shader_recompiler/backend/glsl/emit_glsl_context_get_set.cpp b/src/shader_recompiler/backend/glsl/emit_glsl_context_get_set.cpp index 0c1fbc7b1..282668b36 100644 --- a/src/shader_recompiler/backend/glsl/emit_glsl_context_get_set.cpp +++ b/src/shader_recompiler/backend/glsl/emit_glsl_context_get_set.cpp @@ -35,6 +35,15 @@ std::string_view OutputVertexIndex(EmitContext& ctx) { return ctx.stage == Stage::TessellationControl ? "[gl_InvocationID]" : ""; } +std::string ChooseCbuf(EmitContext& ctx, const IR::Value& binding, std::string_view index) { + if (binding.IsImmediate()) { + return fmt::format("{}_cbuf{}[{}]", ctx.stage_name, binding.U32(), index); + } else { + const auto binding_var{ctx.var_alloc.Consume(binding)}; + return fmt::format("GetCbufIndirect({},{})", binding_var, index); + } +} + void GetCbuf(EmitContext& ctx, std::string_view ret, const IR::Value& binding, const IR::Value& offset, u32 num_bits, std::string_view cast = {}, std::string_view bit_offset = {}) { @@ -55,8 +64,8 @@ void GetCbuf(EmitContext& ctx, std::string_view ret, const IR::Value& binding, const auto swizzle{is_immediate ? fmt::format(".{}", OffsetSwizzle(offset.U32())) : fmt::format("[({}>>2)%4]", offset_var)}; - const auto cbuf{fmt::format("{}_cbuf{}", ctx.stage_name, binding.U32())}; - const auto cbuf_cast{fmt::format("{}({}[{}]{{}})", cast, cbuf, index)}; + const auto cbuf{ChooseCbuf(ctx, binding, index)}; + const auto cbuf_cast{fmt::format("{}({}{{}})", cast, cbuf)}; const auto extraction{num_bits == 32 ? cbuf_cast : fmt::format("bitfieldExtract({},int({}),{})", cbuf_cast, bit_offset, num_bits)}; @@ -140,9 +149,9 @@ void EmitGetCbufF32(EmitContext& ctx, IR::Inst& inst, const IR::Value& binding, void EmitGetCbufU32x2(EmitContext& ctx, IR::Inst& inst, const IR::Value& binding, const IR::Value& offset) { - const auto cbuf{fmt::format("{}_cbuf{}", ctx.stage_name, binding.U32())}; const auto cast{ctx.profile.has_gl_cbuf_ftou_bug ? "" : "ftou"}; if (offset.IsImmediate()) { + const auto cbuf{fmt::format("{}_cbuf{}", ctx.stage_name, binding.U32())}; static constexpr u32 cbuf_size{0x10000}; const u32 u32_offset{offset.U32()}; const s32 signed_offset{static_cast<s32>(offset.U32())}; @@ -162,17 +171,17 @@ void EmitGetCbufU32x2(EmitContext& ctx, IR::Inst& inst, const IR::Value& binding return; } const auto offset_var{ctx.var_alloc.Consume(offset)}; + const auto cbuf{ChooseCbuf(ctx, binding, fmt::format("{}>>4", offset_var))}; if (!ctx.profile.has_gl_component_indexing_bug) { - ctx.AddU32x2("{}=uvec2({}({}[{}>>4][({}>>2)%4]),{}({}[({}+4)>>4][(({}+4)>>2)%4]));", inst, - cast, cbuf, offset_var, offset_var, cast, cbuf, offset_var, offset_var); + ctx.AddU32x2("{}=uvec2({}({}[({}>>2)%4]),{}({}[(({}+4)>>2)%4]));", inst, cast, cbuf, + offset_var, cast, cbuf, offset_var); return; } const auto ret{ctx.var_alloc.Define(inst, GlslVarType::U32x2)}; const auto cbuf_offset{fmt::format("{}>>2", offset_var)}; for (u32 swizzle = 0; swizzle < 4; ++swizzle) { - ctx.Add("if(({}&3)=={}){}=uvec2({}({}[{}>>4].{}),{}({}[({}+4)>>4].{}));", cbuf_offset, - swizzle, ret, cast, cbuf, offset_var, "xyzw"[swizzle], cast, cbuf, offset_var, - "xyzw"[(swizzle + 1) % 4]); + ctx.Add("if(({}&3)=={}){}=uvec2({}({}.{}),{}({}.{}));", cbuf_offset, swizzle, ret, cast, + cbuf, "xyzw"[swizzle], cast, cbuf, "xyzw"[(swizzle + 1) % 4]); } } |