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glsl: Implement TEX depth functions

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This commit is contained in:
ameerj 2021-05-29 01:53:32 -04:00
parent 55e0211a5e
commit 7619b7d427
2 changed files with 46 additions and 4 deletions
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24
src/shader_recompiler/backend/glsl/emit_context.cpp
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@ -21,7 +21,26 @@ std::string_view InterpDecorator(Interpolation interp) {
throw InvalidArgument("Invalid interpolation {}", interp);
}
std::string_view SamplerType(TextureType type) {
std::string_view SamplerType(TextureType type, bool is_depth) {
if (is_depth) {
switch (type) {
case TextureType::Color1D:
return "sampler1DShadow";
case TextureType::ColorArray1D:
return "sampler1DArrayShadow";
case TextureType::Color2D:
return "sampler2DShadow";
case TextureType::ColorArray2D:
return "sampler2DArrayShadow";
case TextureType::ColorCube:
return "samplerCubeShadow";
case TextureType::ColorArrayCube:
return "samplerCubeArrayShadow";
default:
fmt::print("Texture type: {}", type);
throw NotImplementedException("Texture type: {}", type);
}
}
switch (type) {
case TextureType::Color1D:
return "sampler1D";
@ -110,6 +129,7 @@ EmitContext::EmitContext(IR::Program& program, Bindings& bindings, const Profile
void EmitContext::SetupExtensions(std::string&) {
header += "#extension GL_ARB_separate_shader_objects : enable\n";
header += "#extension GL_ARB_sparse_texture2 : enable\n";
header += "#extension GL_EXT_texture_shadow_lod : enable\n";
// header += "#extension GL_ARB_texture_cube_map_array : enable\n";
if (info.uses_int64) {
header += "#extension GL_ARB_gpu_shader_int64 : enable\n";
@ -227,7 +247,7 @@ void EmitContext::SetupImages(Bindings& bindings) {
}
texture_bindings.reserve(info.texture_descriptors.size());
for (const auto& desc : info.texture_descriptors) {
const auto sampler_type{SamplerType(desc.type)};
const auto sampler_type{SamplerType(desc.type, desc.is_depth)};
texture_bindings.push_back(bindings.texture);
const auto indices{bindings.texture + desc.count};
for (u32 index = bindings.texture; index < indices; ++index) {

26
src/shader_recompiler/backend/glsl/emit_glsl_image.cpp
View file

@ -120,7 +120,17 @@ void EmitImageSampleDrefImplicitLod([[maybe_unused]] EmitContext& ctx,
[[maybe_unused]] std::string_view dref,
[[maybe_unused]] std::string_view bias_lc,
[[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");
}
const auto bias{info.has_bias ? fmt::format(",{}", bias_lc) : ""};
const auto texture{Texture(ctx, info, index)};
const auto vec_cast{info.type == TextureType::ColorArrayCube ? "vec4" : "vec3"};
ctx.AddF32("{}=texture({},{}({},{}){});", inst, texture, vec_cast, dref, coords, bias);
}
void EmitImageSampleDrefExplicitLod([[maybe_unused]] EmitContext& ctx,
@ -130,7 +140,19 @@ void EmitImageSampleDrefExplicitLod([[maybe_unused]] EmitContext& ctx,
[[maybe_unused]] std::string_view dref,
[[maybe_unused]] std::string_view lod_lc,
[[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");
}
const auto texture{Texture(ctx, info, index)};
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);
}
}
void EmitImageGather([[maybe_unused]] EmitContext& ctx, [[maybe_unused]] IR::Inst& inst,