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glsl: Fix and implement rest of cbuf access

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This commit is contained in:
ameerj 2021-05-29 18:47:17 -04:00
parent 3047eb6688
commit 005eecffcd
1 changed files with 43 additions and 7 deletions
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50
src/shader_recompiler/backend/glsl/emit_glsl_context_get_set.cpp
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@ -24,25 +24,61 @@ char OffsetSwizzle(u32 offset) {
void EmitGetCbufU8([[maybe_unused]] EmitContext& ctx, [[maybe_unused]] IR::Inst& inst,
[[maybe_unused]] const IR::Value& binding,
[[maybe_unused]] const IR::Value& offset) {
throw NotImplementedException("GLSL");
if (offset.IsImmediate()) {
ctx.AddU32("{}=bitfieldExtract(floatBitsToUint({}_cbuf{}[{}].{}),int({}),8);", inst,
ctx.stage_name, binding.U32(), offset.U32() / 16, OffsetSwizzle(offset.U32()),
(offset.U32() % 4) * 8);
} else {
const auto offset_var{ctx.reg_alloc.Consume(offset)};
ctx.AddU32(
"{}=bitfieldExtract(floatBitsToUint({}_cbuf{}[{}/16][({}/4)%4]),int(({}%4)*8),8);",
inst, ctx.stage_name, binding.U32(), offset_var, offset_var, offset_var);
}
}
void EmitGetCbufS8([[maybe_unused]] EmitContext& ctx, [[maybe_unused]] IR::Inst& inst,
[[maybe_unused]] const IR::Value& binding,
[[maybe_unused]] const IR::Value& offset) {
throw NotImplementedException("GLSL");
if (offset.IsImmediate()) {
ctx.AddU32("{}=bitfieldExtract(floatBitsToInt({}_cbuf{}[{}].{}),int({}),8);", inst,
ctx.stage_name, binding.U32(), offset.U32() / 16, OffsetSwizzle(offset.U32()),
(offset.U32() % 4) * 8);
} else {
const auto offset_var{ctx.reg_alloc.Consume(offset)};
ctx.AddU32(
"{}=bitfieldExtract(floatBitsToInt({}_cbuf{}[{}/16][({}/4)%4]),int(({}%4)*8),8);", inst,
ctx.stage_name, binding.U32(), offset_var, offset_var, offset_var);
}
}
void EmitGetCbufU16([[maybe_unused]] EmitContext& ctx, [[maybe_unused]] IR::Inst& inst,
[[maybe_unused]] const IR::Value& binding,
[[maybe_unused]] const IR::Value& offset) {
throw NotImplementedException("GLSL");
if (offset.IsImmediate()) {
ctx.AddU32("{}=bitfieldExtract(floatBitsToUint({}_cbuf{}[{}].{}),int({}),16);", inst,
ctx.stage_name, binding.U32(), offset.U32() / 16, OffsetSwizzle(offset.U32()),
((offset.U32() / 2) % 2) * 16);
} else {
const auto offset_var{ctx.reg_alloc.Consume(offset)};
ctx.AddU32("{}=bitfieldExtract(floatBitsToUint({}_cbuf{}[{}/16][({}/4)%4]),int((({}/"
"2)%2)*16),16);",
inst, ctx.stage_name, binding.U32(), offset_var, offset_var, offset_var);
}
}
void EmitGetCbufS16([[maybe_unused]] EmitContext& ctx, [[maybe_unused]] IR::Inst& inst,
[[maybe_unused]] const IR::Value& binding,
[[maybe_unused]] const IR::Value& offset) {
throw NotImplementedException("GLSL");
if (offset.IsImmediate()) {
ctx.AddU32("{}=bitfieldExtract(floatBitsToInt({}_cbuf{}[{}].{}),int({}),16);", inst,
ctx.stage_name, binding.U32(), offset.U32() / 16, OffsetSwizzle(offset.U32()),
((offset.U32() / 2) % 2) * 16);
} else {
const auto offset_var{ctx.reg_alloc.Consume(offset)};
ctx.AddU32(
"{}=bitfieldExtract(floatBitsToInt({}_cbuf{}[{}/16][({}/4)%4]),int((({}/2)%2)*16),16);",
inst, ctx.stage_name, binding.U32(), offset_var, offset_var, offset_var);
}
}
void EmitGetCbufU32(EmitContext& ctx, IR::Inst& inst, const IR::Value& binding,
@ -75,12 +111,12 @@ void EmitGetCbufU32x2(EmitContext& ctx, IR::Inst& inst, const IR::Value& binding
ctx.AddU32x2(
"{}=uvec2(floatBitsToUint({}_cbuf{}[{}].{}),floatBitsToUint({}_cbuf{}[{}].{}));", inst,
ctx.stage_name, binding.U32(), offset.U32() / 16, OffsetSwizzle(offset.U32()),
ctx.stage_name, binding.U32(), (offset.U32() + 1) / 16,
OffsetSwizzle(offset.U32() + 1));
ctx.stage_name, binding.U32(), (offset.U32() + 4) / 16,
OffsetSwizzle(offset.U32() + 4));
} else {
const auto offset_var{ctx.reg_alloc.Consume(offset)};
ctx.AddU32x2("{}=uvec2(floatBitsToUint({}_cbuf{}[{}/16][({}/"
"4)%4]),floatBitsToUint({}_cbuf{}[({}+1)/16][(({}+1/4))%4]));",
"4)%4]),floatBitsToUint({}_cbuf{}[({}+4)/16][(({}+4)/4)%4]));",
inst, ctx.stage_name, binding.U32(), offset_var, offset_var, ctx.stage_name,
binding.U32(), offset_var, offset_var);
}