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glsl: Implement ImageGradient and other texture function variants

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This commit is contained in:
ameerj 2021-05-31 16:03:20 -04:00
parent 68d075d1e8
commit c7d085b505
2 changed files with 73 additions and 32 deletions
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101
src/shader_recompiler/backend/glsl/emit_glsl_image.cpp
View File

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

4
src/shader_recompiler/backend/glsl/emit_glsl_instructions.h
View File

@ -631,8 +631,8 @@ void EmitImageQueryDimensions(EmitContext& ctx, IR::Inst& inst, const IR::Value&
void EmitImageQueryLod(EmitContext& ctx, IR::Inst& inst, const IR::Value& index, void EmitImageQueryLod(EmitContext& ctx, IR::Inst& inst, const IR::Value& index,
std::string_view coords); std::string_view coords);
void EmitImageGradient(EmitContext& ctx, IR::Inst& inst, const IR::Value& index, void EmitImageGradient(EmitContext& ctx, IR::Inst& inst, const IR::Value& index,
std::string_view coords, std::string_view derivates, std::string_view offset, std::string_view coords, const IR::Value& derivatives,
std::string_view lod_clamp); const IR::Value& offset, const IR::Value& lod_clamp);
void EmitImageRead(EmitContext& ctx, IR::Inst& inst, const IR::Value& index, void EmitImageRead(EmitContext& ctx, IR::Inst& inst, const IR::Value& index,
std::string_view coords); std::string_view coords);
void EmitImageWrite(EmitContext& ctx, IR::Inst& inst, const IR::Value& index, void EmitImageWrite(EmitContext& ctx, IR::Inst& inst, const IR::Value& index,