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glsl: Implement TLD instruction
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e4ba755705
commit
697eacd095
1 changed files with 55 additions and 1 deletions
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@ -38,6 +38,24 @@ std::string CastToIntVec(std::string_view value, const IR::TextureInstInfo& info
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}
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}
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std::string TexelFetchCastToInt(std::string_view value, const IR::TextureInstInfo& info) {
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switch (info.type) {
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case TextureType::Color1D:
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return fmt::format("int({})", value);
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case TextureType::ColorArray1D:
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case TextureType::Color2D:
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return fmt::format("ivec2({})", value);
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case TextureType::ColorArray2D:
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case TextureType::Color3D:
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case TextureType::ColorCube:
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return fmt::format("ivec3({})", value);
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case TextureType::ColorArrayCube:
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return fmt::format("ivec4({})", value);
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default:
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throw NotImplementedException("Offset type {}", info.type.Value());
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}
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}
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std::string ShadowSamplerVecCast(TextureType type) {
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switch (type) {
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case TextureType::ColorArray2D:
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@ -138,6 +156,10 @@ void EmitImageSampleDrefImplicitLod([[maybe_unused]] EmitContext& ctx,
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[[maybe_unused]] std::string_view bias_lc,
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[[maybe_unused]] const IR::Value& offset) {
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const auto info{inst.Flags<IR::TextureInstInfo>()};
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const auto sparse_inst{PrepareSparse(inst)};
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if (sparse_inst) {
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throw NotImplementedException("Sparse texture samples");
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}
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if (info.has_bias) {
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throw NotImplementedException("Bias texture samples");
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}
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@ -165,6 +187,10 @@ void EmitImageSampleDrefExplicitLod([[maybe_unused]] EmitContext& ctx,
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[[maybe_unused]] std::string_view lod_lc,
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[[maybe_unused]] const IR::Value& offset) {
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const auto info{inst.Flags<IR::TextureInstInfo>()};
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const auto sparse_inst{PrepareSparse(inst)};
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if (sparse_inst) {
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throw NotImplementedException("Sparse texture samples");
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}
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if (info.has_bias) {
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throw NotImplementedException("Bias texture samples");
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}
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@ -204,7 +230,35 @@ void EmitImageFetch([[maybe_unused]] EmitContext& ctx, [[maybe_unused]] IR::Inst
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[[maybe_unused]] std::string_view coords,
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[[maybe_unused]] std::string_view offset, [[maybe_unused]] std::string_view lod,
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[[maybe_unused]] std::string_view ms) {
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throw NotImplementedException("GLSL Instruction");
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const auto info{inst.Flags<IR::TextureInstInfo>()};
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if (info.has_bias) {
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throw NotImplementedException("Bias texture samples");
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}
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if (info.has_lod_clamp) {
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throw NotImplementedException("Lod clamp samples");
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}
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const auto texture{Texture(ctx, info, index)};
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const auto sparse_inst{PrepareSparse(inst)};
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const auto texel{ctx.reg_alloc.Define(inst, Type::F32x4)};
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if (!sparse_inst) {
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if (!offset.empty()) {
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ctx.Add("{}=texelFetchOffset({},{},int({}),{});", texel, texture,
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TexelFetchCastToInt(coords, info), lod, TexelFetchCastToInt(offset, info));
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} else {
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ctx.Add("{}=texelFetch({},{},int({}));", texel, texture,
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TexelFetchCastToInt(coords, info), lod);
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}
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return;
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}
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// TODO: Query sparseTexels extension support
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if (!offset.empty()) {
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ctx.AddU1("{}=sparseTexelsResidentARB(sparseTexelFetchOffsetARB({},{},int({}),{},{}));",
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*sparse_inst, texture, CastToIntVec(coords, info), lod,
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CastToIntVec(offset, info), texel);
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} else {
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ctx.AddU1("{}=sparseTexelsResidentARB(sparseTexelFetchARB({},{},{},{}));", *sparse_inst,
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texture, CastToIntVec(coords, info), lod, texel);
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}
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}
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void EmitImageQueryDimensions([[maybe_unused]] EmitContext& ctx, [[maybe_unused]] IR::Inst& inst,
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