snes9x/vulkan/slang_shader.hpp

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#pragma once
#include <string>
#include <vector>
struct SlangShader
{
struct Parameter
{
std::string name;
std::string id;
float min;
float max;
float val;
float step;
int significant_digits;
};
struct Uniform
{
enum Block
{
UBO,
PushConstant,
};
enum Type
{
ViewportSize,
PreviousFrameSize,
PassSize,
PassFeedbackSize,
LutSize,
MVP,
FrameCount,
Parameter,
FrameDirection
};
Block block;
size_t offset;
Type type;
int specifier;
};
struct Sampler
{
enum Type
{
PreviousFrame,
Pass,
PassFeedback,
Lut
};
Type type;
int specifier;
int binding;
};
enum class Stage
{
Vertex,
Fragment
};
SlangShader();
~SlangShader();
bool preprocess_shader_file(std::string filename, std::vector<std::string> &lines);
void set_base_path(std::string filename);
bool load_file(std::string new_filename = "");
void divide_into_stages(const std::vector<std::string> &lines);
bool generate_spirv();
static void initialize_glslang();
static std::vector<uint32_t> generate_spirv(std::string shader_string, std::string stage);
std::string filename;
std::string alias;
bool filter_linear;
bool mipmap_input;
bool float_framebuffer;
bool srgb_framebuffer;
int frame_count_mod;
std::string wrap_mode;
std::string scale_type_x;
std::string scale_type_y;
float scale_x;
float scale_y;
std::string format;
std::vector<Parameter> parameters;
std::vector<size_t> pragma_stage_lines;
std::string vertex_shader_string;
std::string fragment_shader_string;
std::vector<uint32_t> vertex_shader_spirv;
std::vector<uint32_t> fragment_shader_spirv;
size_t push_constant_block_size;
size_t ubo_size;
int ubo_binding;
std::vector<Uniform> uniforms;
std::vector<Sampler> samplers;
};