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VideoCommon: add custom pixel shader definition and custom shader header to shadergen common as it will be used by both the special and uber shader variant of pixel shaders

This commit is contained in:
iwubcode 2022-12-03 23:54:22 -06:00
parent f19651e49b
commit 0da5cf60a8
2 changed files with 106 additions and 0 deletions
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87
Source/Core/VideoCommon/ShaderGenCommon.cpp
View File

@ -10,6 +10,7 @@
#include "Core/ConfigManager.h"
#include "VideoCommon/VideoCommon.h"
#include "VideoCommon/VideoConfig.h"
#include "VideoCommon/XFMemory.h"
ShaderHostConfig ShaderHostConfig::GetCurrent()
{
@ -362,3 +363,89 @@ const char* GetInterpolationQualifier(bool msaa, bool ssaa, bool in_glsl_interfa
return "sample";
}
}
void WriteCustomShaderStructDef(ShaderCode* out, u32 numtexgens)
{
// Bump this when there are breaking changes to the API
out->Write("#define CUSTOM_SHADER_API_VERSION 1;\n");
// CUSTOM_SHADER_LIGHTING_ATTENUATION_TYPE "enum" values
out->Write("const uint CUSTOM_SHADER_LIGHTING_ATTENUATION_TYPE_NONE = {};\n",
static_cast<u32>(AttenuationFunc::None));
out->Write("const uint CUSTOM_SHADER_LIGHTING_ATTENUATION_TYPE_POINT = {};\n",
static_cast<u32>(AttenuationFunc::Spec));
out->Write("const uint CUSTOM_SHADER_LIGHTING_ATTENUATION_TYPE_DIR = {};\n",
static_cast<u32>(AttenuationFunc::Dir));
out->Write("const uint CUSTOM_SHADER_LIGHTING_ATTENUATION_TYPE_SPOT = {};\n",
static_cast<u32>(AttenuationFunc::Spot));
out->Write("struct CustomShaderLightData\n");
out->Write("{{\n");
out->Write("\tfloat3 position;\n");
out->Write("\tfloat3 direction;\n");
out->Write("\tfloat3 color;\n");
out->Write("\tuint attenuation_type;\n");
out->Write("\tfloat4 cosatt;\n");
out->Write("\tfloat4 distatt;\n");
out->Write("}};\n\n");
// CUSTOM_SHADER_TEV_STAGE_INPUT_TYPE "enum" values
out->Write("const uint CUSTOM_SHADER_TEV_STAGE_INPUT_TYPE_PREV = 0;\n");
out->Write("const uint CUSTOM_SHADER_TEV_STAGE_INPUT_TYPE_COLOR = 1;\n");
out->Write("const uint CUSTOM_SHADER_TEV_STAGE_INPUT_TYPE_TEX = 2;\n");
out->Write("const uint CUSTOM_SHADER_TEV_STAGE_INPUT_TYPE_RAS = 3;\n");
out->Write("const uint CUSTOM_SHADER_TEV_STAGE_INPUT_TYPE_KONST = 4;\n");
out->Write("const uint CUSTOM_SHADER_TEV_STAGE_INPUT_TYPE_NUMERIC = 5;\n");
out->Write("const uint CUSTOM_SHADER_TEV_STAGE_INPUT_TYPE_UNUSED = 6;\n");
out->Write("struct CustomShaderTevStageInputColor\n");
out->Write("{{\n");
out->Write("\tuint input_type;\n");
out->Write("\tfloat3 value;\n");
out->Write("}};\n\n");
out->Write("struct CustomShaderTevStageInputAlpha\n");
out->Write("{{\n");
out->Write("\tuint input_type;\n");
out->Write("\tfloat value;\n");
out->Write("}};\n\n");
out->Write("struct CustomShaderTevStage\n");
out->Write("{{\n");
out->Write("\tCustomShaderTevStageInputColor[4] input_color;\n");
out->Write("\tCustomShaderTevStageInputAlpha[4] input_alpha;\n");
out->Write("\tuint texmap;\n");
out->Write("\tfloat4 output_color;\n");
out->Write("}};\n\n");
// Custom structure for data we pass to custom shader hooks
out->Write("struct CustomShaderData\n");
out->Write("{{\n");
out->Write("\tfloat3 position;\n");
out->Write("\tfloat3 normal;\n");
if (numtexgens == 0)
{
// Cheat so shaders compile
out->Write("\tfloat3[1] texcoord;\n");
}
else
{
out->Write("\tfloat3[{}] texcoord;\n", numtexgens);
}
out->Write("\tuint texcoord_count;\n");
out->Write("\tuint[8] texmap_to_texcoord_index;\n");
out->Write("\tCustomShaderLightData[8] lights_chan0_color;\n");
out->Write("\tCustomShaderLightData[8] lights_chan0_alpha;\n");
out->Write("\tCustomShaderLightData[8] lights_chan1_color;\n");
out->Write("\tCustomShaderLightData[8] lights_chan1_alpha;\n");
out->Write("\tfloat4[2] ambient_lighting;\n");
out->Write("\tfloat4[2] base_material;\n");
out->Write("\tuint light_chan0_color_count;\n");
out->Write("\tuint light_chan0_alpha_count;\n");
out->Write("\tuint light_chan1_color_count;\n");
out->Write("\tuint light_chan1_alpha_count;\n");
out->Write("\tCustomShaderTevStage[16] tev_stages;\n");
out->Write("\tuint tev_stage_count;\n");
out->Write("\tfloat4 final_color;\n");
out->Write("}};\n\n");
}

19
Source/Core/VideoCommon/ShaderGenCommon.h
View File

@ -7,6 +7,7 @@
#include <functional>
#include <iterator>
#include <string>
#include <string_view>
#include <type_traits>
#include <vector>
@ -327,3 +328,21 @@ static const char s_geometry_shader_uniforms[] = "\tfloat4 " I_STEREOPARAMS ";\n
"\tfloat4 " I_LINEPTPARAMS ";\n"
"\tint4 " I_TEXOFFSET ";\n"
"\tuint vs_expand;\n";
constexpr std::string_view CUSTOM_PIXELSHADER_COLOR_FUNC = "customShaderColor";
struct CustomPixelShader
{
std::string custom_shader;
bool operator==(const CustomPixelShader& other) const = default;
};
struct CustomPixelShaderContents
{
std::vector<CustomPixelShader> shaders;
bool operator==(const CustomPixelShaderContents& other) const = default;
};
void WriteCustomShaderStructDef(ShaderCode* out, u32 numtexgens);