metaforce/Runtime/Graphics/Shaders/CScanLinesFilterMetal.cpp

121 lines
4.0 KiB
C++

#include "CScanLinesFilter.hpp"
#include "TMultiBlendShader.hpp"
#include "GameGlobalObjects.hpp"
#include "Graphics/CBooRenderer.hpp"
namespace urde
{
static const char* VS =
"#include <metal_stdlib>\n"
"using namespace metal;\n"
"struct VertData\n"
"{\n"
" float4 posIn [[ attribute(0) ]];\n"
"};\n"
"\n"
"struct ScanLinesUniform\n"
"{\n"
" float4 color;\n"
"};\n"
"\n"
"struct VertToFrag\n"
"{\n"
" float4 position [[ position ]];\n"
" float4 color;\n"
"};\n"
"\n"
"vertex VertToFrag vmain(VertData v [[ stage_in ]], constant ScanLinesUniform& cqu [[ buffer(2) ]])\n"
"{\n"
" VertToFrag vtf;\n"
" vtf.color = cqu.color;\n"
" vtf.position = float4(v.posIn.xyz, 1.0);\n"
" return vtf;\n"
"}\n";
static const char* FS =
"#include <metal_stdlib>\n"
"using namespace metal;\n"
"struct VertToFrag\n"
"{\n"
" float4 position [[ position ]];\n"
" float4 color;\n"
"};\n"
"\n"
"fragment float4 fmain(VertToFrag vtf [[ stage_in ]])\n"
"{\n"
" return vtf.color;\n"
"}\n";
URDE_DECL_SPECIALIZE_MULTI_BLEND_SHADER(CScanLinesFilter)
static boo::ObjToken<boo::IVertexFormat> s_VtxFmt;
static boo::ObjToken<boo::IShaderPipeline> s_AlphaPipeline;
static boo::ObjToken<boo::IShaderPipeline> s_AddPipeline;
static boo::ObjToken<boo::IShaderPipeline> s_MultPipeline;
static boo::ObjToken<boo::IShaderPipeline> SelectPipeline(EFilterType type)
{
switch (type)
{
case EFilterType::Blend:
return s_AlphaPipeline;
case EFilterType::Add:
return s_AddPipeline;
case EFilterType::Multiply:
return s_MultPipeline;
default:
return {};
}
}
struct CScanLinesFilterMetalDataBindingFactory : TMultiBlendShader<CScanLinesFilter>::IDataBindingFactory
{
boo::ObjToken<boo::IShaderDataBinding> BuildShaderDataBinding(boo::IGraphicsDataFactory::Context& ctx,
EFilterType type, CScanLinesFilter& filter)
{
boo::MetalDataFactory::Context& cctx = static_cast<boo::MetalDataFactory::Context&>(ctx);
boo::ObjToken<boo::IGraphicsBuffer> vbo = filter.m_even ?
g_Renderer->GetScanLinesEvenVBO().get() : g_Renderer->GetScanLinesOddVBO().get();
boo::ObjToken<boo::IGraphicsBuffer> bufs[] = {filter.m_uniBuf.get()};
return cctx.newShaderDataBinding(SelectPipeline(type), s_VtxFmt,
vbo, nullptr, nullptr, 1, bufs,
nullptr, nullptr, nullptr, 0, nullptr, nullptr, nullptr);
}
};
TMultiBlendShader<CScanLinesFilter>::IDataBindingFactory*
CScanLinesFilter::Initialize(boo::MetalDataFactory::Context& ctx)
{
const boo::VertexElementDescriptor VtxVmt[] =
{
{nullptr, nullptr, boo::VertexSemantic::Position4}
};
s_VtxFmt = ctx.newVertexFormat(1, VtxVmt);
s_AlphaPipeline = ctx.newShaderPipeline(VS, FS, nullptr, nullptr,
s_VtxFmt, boo::BlendFactor::SrcAlpha,
boo::BlendFactor::InvSrcAlpha, boo::Primitive::TriStrips,
boo::ZTest::None, false, true, false, boo::CullMode::None);
s_AddPipeline = ctx.newShaderPipeline(VS, FS, nullptr, nullptr,
s_VtxFmt, boo::BlendFactor::SrcAlpha,
boo::BlendFactor::One, boo::Primitive::TriStrips,
boo::ZTest::None, false, true, false, boo::CullMode::None);
s_MultPipeline = ctx.newShaderPipeline(VS, FS, nullptr, nullptr,
s_VtxFmt, boo::BlendFactor::Zero,
boo::BlendFactor::SrcColor, boo::Primitive::TriStrips,
boo::ZTest::None, false, true, false, boo::CullMode::None);
return new CScanLinesFilterMetalDataBindingFactory;
}
template <>
void CScanLinesFilter::Shutdown<boo::MetalDataFactory>()
{
s_VtxFmt.reset();
s_AlphaPipeline.reset();
s_AddPipeline.reset();
s_MultPipeline.reset();
}
}