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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 <array>
#include <bitset>
#include <memory>
#include <set>
#include <type_traits>
#include <utility>
#include <vector>
#include "common/common_types.h"
#include "video_core/engines/maxwell_3d.h"
#include "video_core/engines/shader_type.h"
#include "video_core/shader/shader_ir.h"
namespace Vulkan {
class VKDevice;
}
namespace Vulkan {
using Maxwell = Tegra::Engines::Maxwell3D::Regs;
using TexelBufferEntry = VideoCommon::Shader::Sampler;
using SamplerEntry = VideoCommon::Shader::Sampler;
using ImageEntry = VideoCommon::Shader::Image;
constexpr u32 DESCRIPTOR_SET = 0;
class ConstBufferEntry : public VideoCommon::Shader::ConstBuffer {
public:
explicit constexpr ConstBufferEntry(const VideoCommon::Shader::ConstBuffer& entry, u32 index)
: VideoCommon::Shader::ConstBuffer{entry}, index{index} {}
constexpr u32 GetIndex() const {
return index;
}
private:
u32 index{};
};
class GlobalBufferEntry {
public:
constexpr explicit GlobalBufferEntry(u32 cbuf_index, u32 cbuf_offset, bool is_written)
: cbuf_index{cbuf_index}, cbuf_offset{cbuf_offset}, is_written{is_written} {}
constexpr u32 GetCbufIndex() const {
return cbuf_index;
}
constexpr u32 GetCbufOffset() const {
return cbuf_offset;
}
constexpr bool IsWritten() const {
return is_written;
}
private:
u32 cbuf_index{};
u32 cbuf_offset{};
bool is_written{};
};
struct ShaderEntries {
u32 NumBindings() const {
return static_cast<u32>(const_buffers.size() + global_buffers.size() +
texel_buffers.size() + samplers.size() + images.size());
}
std::vector<ConstBufferEntry> const_buffers;
std::vector<GlobalBufferEntry> global_buffers;
std::vector<TexelBufferEntry> texel_buffers;
std::vector<SamplerEntry> samplers;
std::vector<ImageEntry> images;
std::set<u32> attributes;
std::array<bool, Maxwell::NumClipDistances> clip_distances{};
std::size_t shader_length{};
bool uses_warps{};
};
struct Specialization final {
u32 base_binding{};
// Compute specific
std::array<u32, 3> workgroup_size{};
u32 shared_memory_size{};
// Graphics specific
Maxwell::PrimitiveTopology primitive_topology{};
std::optional<float> point_size{};
std::array<Maxwell::VertexAttribute::Type, Maxwell::NumVertexAttributes> attribute_types{};
// Tessellation specific
struct {
Maxwell::TessellationPrimitive primitive{};
Maxwell::TessellationSpacing spacing{};
bool clockwise{};
} tessellation;
// Fragment specific
std::bitset<8> enabled_rendertargets;
};
// Old gcc versions don't consider this trivially copyable.
// static_assert(std::is_trivially_copyable_v<Specialization>);
struct SPIRVShader {
std::vector<u32> code;
ShaderEntries entries;
};
ShaderEntries GenerateShaderEntries(const VideoCommon::Shader::ShaderIR& ir);
std::vector<u32> Decompile(const VKDevice& device, const VideoCommon::Shader::ShaderIR& ir,
Tegra::Engines::ShaderType stage, const Specialization& specialization);
} // namespace Vulkan
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