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// Copyright 2019 yuzu Emulator Project
// Licensed under GPLv2 or any later version
// Refer to the license.txt file included.
#pragma once
#include <type_traits>
#include "common/bit_field.h"
#include "common/common_types.h"
#include "video_core/engines/shader_bytecode.h"
#include "video_core/textures/texture.h"
namespace Tegra::Engines {
enum class ShaderType : u32 {
Vertex = 0,
TesselationControl = 1,
TesselationEval = 2,
Geometry = 3,
Fragment = 4,
Compute = 5,
};
struct SamplerDescriptor {
union {
BitField<0, 20, Tegra::Shader::TextureType> texture_type;
BitField<20, 1, u32> is_array;
BitField<21, 1, u32> is_buffer;
BitField<22, 1, u32> is_shadow;
u32 raw{};
};
bool operator==(const SamplerDescriptor& rhs) const noexcept {
return raw == rhs.raw;
}
bool operator!=(const SamplerDescriptor& rhs) const noexcept {
return !operator==(rhs);
}
static SamplerDescriptor FromTicTexture(Tegra::Texture::TextureType tic_texture_type) {
SamplerDescriptor result;
switch (tic_texture_type) {
case Tegra::Texture::TextureType::Texture1D:
result.texture_type.Assign(Tegra::Shader::TextureType::Texture1D);
result.is_array.Assign(0);
result.is_buffer.Assign(0);
result.is_shadow.Assign(0);
return result;
case Tegra::Texture::TextureType::Texture2D:
result.texture_type.Assign(Tegra::Shader::TextureType::Texture2D);
result.is_array.Assign(0);
result.is_buffer.Assign(0);
result.is_shadow.Assign(0);
return result;
case Tegra::Texture::TextureType::Texture3D:
result.texture_type.Assign(Tegra::Shader::TextureType::Texture3D);
result.is_array.Assign(0);
result.is_buffer.Assign(0);
result.is_shadow.Assign(0);
return result;
case Tegra::Texture::TextureType::TextureCubemap:
result.texture_type.Assign(Tegra::Shader::TextureType::TextureCube);
result.is_array.Assign(0);
result.is_buffer.Assign(0);
result.is_shadow.Assign(0);
return result;
case Tegra::Texture::TextureType::Texture1DArray:
result.texture_type.Assign(Tegra::Shader::TextureType::Texture1D);
result.is_array.Assign(1);
result.is_buffer.Assign(0);
result.is_shadow.Assign(0);
return result;
case Tegra::Texture::TextureType::Texture2DArray:
result.texture_type.Assign(Tegra::Shader::TextureType::Texture2D);
result.is_array.Assign(1);
result.is_buffer.Assign(0);
result.is_shadow.Assign(0);
return result;
case Tegra::Texture::TextureType::Texture1DBuffer:
result.texture_type.Assign(Tegra::Shader::TextureType::Texture1D);
result.is_array.Assign(0);
result.is_buffer.Assign(1);
result.is_shadow.Assign(0);
return result;
case Tegra::Texture::TextureType::Texture2DNoMipmap:
result.texture_type.Assign(Tegra::Shader::TextureType::Texture2D);
result.is_array.Assign(0);
result.is_buffer.Assign(0);
result.is_shadow.Assign(0);
return result;
case Tegra::Texture::TextureType::TextureCubeArray:
result.texture_type.Assign(Tegra::Shader::TextureType::TextureCube);
result.is_array.Assign(1);
result.is_buffer.Assign(0);
result.is_shadow.Assign(0);
return result;
default:
result.texture_type.Assign(Tegra::Shader::TextureType::Texture2D);
result.is_array.Assign(0);
result.is_buffer.Assign(0);
result.is_shadow.Assign(0);
return result;
}
}
};
static_assert(std::is_trivially_copyable_v<SamplerDescriptor>);
class ConstBufferEngineInterface {
public:
virtual ~ConstBufferEngineInterface() = default;
virtual u32 AccessConstBuffer32(ShaderType stage, u64 const_buffer, u64 offset) const = 0;
virtual SamplerDescriptor AccessBoundSampler(ShaderType stage, u64 offset) const = 0;
virtual SamplerDescriptor AccessBindlessSampler(ShaderType stage, u64 const_buffer,
u64 offset) const = 0;
virtual u32 GetBoundBuffer() const = 0;
};
} // namespace Tegra::Engines
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