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glsl: Implement ImageGradient and other texture function variants
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@ -100,7 +100,7 @@ void EmitImageSampleImplicitLod([[maybe_unused]] EmitContext& ctx, [[maybe_unuse
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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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if (info.has_lod_clamp) {
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throw NotImplementedException("Lod clamp samples");
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throw NotImplementedException("EmitImageSampleImplicitLod Lod clamp samples");
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}
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const auto texture{Texture(ctx, info, index)};
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const auto bias{info.has_bias ? fmt::format(",{}", bias_lc) : ""};
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@ -108,8 +108,12 @@ void EmitImageSampleImplicitLod([[maybe_unused]] EmitContext& ctx, [[maybe_unuse
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const auto sparse_inst{PrepareSparse(inst)};
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if (!sparse_inst) {
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if (!offset.IsEmpty()) {
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ctx.Add("{}=textureOffset({},{},{}{});", texel, texture, coords,
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CastToIntVec(ctx.var_alloc.Consume(offset), info), bias);
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const auto offset_str{CastToIntVec(ctx.var_alloc.Consume(offset), info)};
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if (ctx.stage == Stage::Fragment) {
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ctx.Add("{}=textureOffset({},{},{}{});", texel, texture, coords, offset_str, bias);
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} else {
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ctx.Add("{}=textureLodOffset({},{},0.0,{});", texel, texture, coords, offset_str);
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}
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} else {
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if (ctx.stage == Stage::Fragment) {
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ctx.Add("{}=texture({},{}{});", texel, texture, coords, bias);
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@ -137,10 +141,10 @@ void EmitImageSampleExplicitLod([[maybe_unused]] EmitContext& ctx, [[maybe_unuse
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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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if (info.has_bias) {
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throw NotImplementedException("Bias texture samples");
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throw NotImplementedException("EmitImageSampleExplicitLod 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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throw NotImplementedException("EmitImageSampleExplicitLod Lod clamp samples");
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}
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const auto texture{Texture(ctx, info, index)};
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const auto texel{ctx.var_alloc.Define(inst, GlslVarType::F32x4)};
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@ -175,24 +179,32 @@ void EmitImageSampleDrefImplicitLod([[maybe_unused]] EmitContext& ctx,
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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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throw NotImplementedException("EmitImageSampleDrefImplicitLod 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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throw NotImplementedException("EmitImageSampleDrefImplicitLod 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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if (!offset.IsEmpty()) {
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throw NotImplementedException("textureLodOffset");
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throw NotImplementedException("EmitImageSampleDrefImplicitLod Lod clamp samples");
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}
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const auto texture{Texture(ctx, info, index)};
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const auto bias{info.has_bias ? fmt::format(",{}", bias_lc) : ""};
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const auto cast{ShadowSamplerVecCast(info.type)};
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if (ctx.stage == Stage::Fragment) {
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ctx.AddF32("{}=texture({},{}({},{}){});", inst, texture, cast, coords, dref, bias);
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if (!offset.IsEmpty()) {
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const auto offset_str{CastToIntVec(ctx.var_alloc.Consume(offset), info)};
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if (ctx.stage == Stage::Fragment) {
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ctx.AddF32("{}=textureOffset({},{}({},{}),{}{});", inst, texture, cast, coords, dref,
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offset_str, bias);
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} else {
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ctx.AddF32("{}=textureLodOffset({},{}({},{}),0.0,{});", inst, texture, cast, coords,
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dref, offset_str);
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}
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} else {
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ctx.AddF32("{}=textureLod({},{}({},{}),0.0);", inst, texture, cast, coords, dref);
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if (ctx.stage == Stage::Fragment) {
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ctx.AddF32("{}=texture({},{}({},{}){});", inst, texture, cast, coords, dref, bias);
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} else {
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ctx.AddF32("{}=textureLod({},{}({},{}),0.0);", inst, texture, cast, coords, dref);
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}
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}
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}
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@ -206,22 +218,30 @@ void EmitImageSampleDrefExplicitLod([[maybe_unused]] EmitContext& ctx,
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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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throw NotImplementedException("EmitImageSampleDrefExplicitLod 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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throw NotImplementedException("EmitImageSampleDrefExplicitLod 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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if (!offset.IsEmpty()) {
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throw NotImplementedException("textureLodOffset");
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throw NotImplementedException("EmitImageSampleDrefExplicitLod Lod clamp samples");
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}
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const auto texture{Texture(ctx, info, index)};
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if (info.type == TextureType::ColorArrayCube) {
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ctx.AddF32("{}=textureLod({},{},{},{});", inst, texture, coords, dref, lod_lc);
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if (!offset.IsEmpty()) {
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const auto offset_str{CastToIntVec(ctx.var_alloc.Consume(offset), info)};
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if (info.type == TextureType::ColorArrayCube) {
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ctx.AddF32("{}=textureLodOffset({},{},{},{},{});", inst, texture, coords, dref, lod_lc,
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offset_str);
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} else {
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ctx.AddF32("{}=textureLodOffset({},vec3({},{}),{},{});", inst, texture, coords, dref,
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lod_lc, offset_str);
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}
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} else {
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ctx.AddF32("{}=textureLod({},vec3({},{}),{});", inst, texture, coords, dref, lod_lc);
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if (info.type == TextureType::ColorArrayCube) {
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ctx.AddF32("{}=textureLod({},{},{},{});", inst, texture, coords, dref, lod_lc);
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} else {
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ctx.AddF32("{}=textureLod({},vec3({},{}),{});", inst, texture, coords, dref, lod_lc);
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}
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}
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}
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@ -316,10 +336,10 @@ void EmitImageFetch([[maybe_unused]] EmitContext& ctx, [[maybe_unused]] IR::Inst
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[[maybe_unused]] std::string_view ms) {
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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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throw NotImplementedException("EmitImageFetch 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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throw NotImplementedException("EmitImageFetch 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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@ -368,7 +388,7 @@ void EmitImageQueryDimensions([[maybe_unused]] EmitContext& ctx, [[maybe_unused]
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"{}=uvec4(uvec3(textureSize({},int({}))),uint(textureQueryLevels({})));", inst, texture,
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lod, texture);
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case TextureType::Buffer:
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throw NotImplementedException("Texture buffers");
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throw NotImplementedException("EmitImageQueryDimensions Texture buffers");
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}
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throw LogicError("Unspecified image type {}", info.type.Value());
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}
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@ -384,10 +404,31 @@ void EmitImageQueryLod([[maybe_unused]] EmitContext& ctx, [[maybe_unused]] IR::I
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void EmitImageGradient([[maybe_unused]] EmitContext& ctx, [[maybe_unused]] IR::Inst& inst,
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[[maybe_unused]] const IR::Value& index,
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[[maybe_unused]] std::string_view coords,
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[[maybe_unused]] std::string_view derivates,
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[[maybe_unused]] std::string_view offset,
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[[maybe_unused]] std::string_view lod_clamp) {
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NotImplemented();
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[[maybe_unused]] const IR::Value& derivatives,
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[[maybe_unused]] const IR::Value& offset,
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[[maybe_unused]] const IR::Value& lod_clamp) {
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const auto info{inst.Flags<IR::TextureInstInfo>()};
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if (info.has_lod_clamp) {
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throw NotImplementedException("EmitImageGradient Lod clamp samples");
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}
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const auto sparse_inst{PrepareSparse(inst)};
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if (sparse_inst) {
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throw NotImplementedException("EmitImageGradient Sparse");
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}
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if (!offset.IsEmpty()) {
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throw NotImplementedException("EmitImageGradient offset");
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}
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const auto texture{Texture(ctx, info, index)};
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const auto texel{ctx.var_alloc.Define(inst, GlslVarType::F32x4)};
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const bool multi_component{info.num_derivates > 1 || info.has_lod_clamp};
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const auto derivatives_vec{ctx.var_alloc.Consume(derivatives)};
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if (multi_component) {
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ctx.Add("{}=textureGrad({},{},vec2({}.xz),vec2({}.yz));", texel, texture, coords,
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derivatives_vec, derivatives_vec);
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} else {
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ctx.Add("{}=textureGrad({},{},float({}.x),float({}.y));", texel, texture, coords,
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derivatives_vec, derivatives_vec);
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}
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}
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void EmitImageRead([[maybe_unused]] EmitContext& ctx, [[maybe_unused]] IR::Inst& inst,
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@ -631,8 +631,8 @@ void EmitImageQueryDimensions(EmitContext& ctx, IR::Inst& inst, const IR::Value&
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void EmitImageQueryLod(EmitContext& ctx, IR::Inst& inst, const IR::Value& index,
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std::string_view coords);
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void EmitImageGradient(EmitContext& ctx, IR::Inst& inst, const IR::Value& index,
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std::string_view coords, std::string_view derivates, std::string_view offset,
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std::string_view lod_clamp);
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std::string_view coords, const IR::Value& derivatives,
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const IR::Value& offset, const IR::Value& lod_clamp);
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void EmitImageRead(EmitContext& ctx, IR::Inst& inst, const IR::Value& index,
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std::string_view coords);
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void EmitImageWrite(EmitContext& ctx, IR::Inst& inst, const IR::Value& index,
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