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glsl: Implement TEXS

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This commit is contained in:
ameerj 2021-05-29 14:21:25 -04:00
parent 59a692e9ed
commit e4ba755705
1 changed files with 29 additions and 1 deletions
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30
src/shader_recompiler/backend/glsl/emit_glsl_image.cpp
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@ -38,6 +38,17 @@ std::string CastToIntVec(std::string_view value, const IR::TextureInstInfo& info
} }
} }
std::string ShadowSamplerVecCast(TextureType type) {
switch (type) {
case TextureType::ColorArray2D:
case TextureType::ColorCube:
case TextureType::ColorArrayCube:
return "vec4";
default:
return "vec3";
}
}
IR::Inst* PrepareSparse(IR::Inst& inst) { IR::Inst* PrepareSparse(IR::Inst& inst) {
const auto sparse_inst{inst.GetAssociatedPseudoOperation(IR::Opcode::GetSparseFromOp)}; const auto sparse_inst{inst.GetAssociatedPseudoOperation(IR::Opcode::GetSparseFromOp)};
if (sparse_inst) { if (sparse_inst) {
@ -126,7 +137,24 @@ void EmitImageSampleDrefImplicitLod([[maybe_unused]] EmitContext& ctx,
[[maybe_unused]] std::string_view dref, [[maybe_unused]] std::string_view dref,
[[maybe_unused]] std::string_view bias_lc, [[maybe_unused]] std::string_view bias_lc,
[[maybe_unused]] const IR::Value& offset) { [[maybe_unused]] const IR::Value& offset) {
throw NotImplementedException("GLSL Instruction"); const auto info{inst.Flags<IR::TextureInstInfo>()};
if (info.has_bias) {
throw NotImplementedException("Bias texture samples");
}
if (info.has_lod_clamp) {
throw NotImplementedException("Lod clamp samples");
}
if (!offset.IsEmpty()) {
throw NotImplementedException("textureLodOffset");
}
const auto texture{Texture(ctx, info, index)};
const auto bias{info.has_bias ? fmt::format(",{}", bias_lc) : ""};
const auto cast{ShadowSamplerVecCast(info.type)};
if (ctx.stage == Stage::Fragment) {
ctx.AddF32("{}=texture({},{}({},{}){});", inst, texture, cast, coords, dref, bias);
} else {
ctx.AddF32("{}=textureLod({},{}({},{}),0.0);", inst, texture, cast, coords, dref);
}
} }
void EmitImageSampleDrefExplicitLod([[maybe_unused]] EmitContext& ctx, void EmitImageSampleDrefExplicitLod([[maybe_unused]] EmitContext& ctx,