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Metal extension shaders

This commit is contained in:
Jack Andersen 2016-04-03 20:15:07 -10:00
parent 80284ad816
commit 6abde07598
5 changed files with 51 additions and 23 deletions
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2
hecl/extern/boo vendored

@ -1 +1 @@
Subproject commit 54ae8c2b1a2ce58cabbebacd0ec4c0b16d92cd8c
Subproject commit 4a2c32c2a97b03ee4b3fb195062833161fc0bbda

8
hecl/include/hecl/Backend/Metal.hpp
View File

@ -24,14 +24,16 @@ struct Metal : ProgrammableCommon
void reset(const IR& ir, Diagnostics& diag);
std::string makeVert(unsigned col, unsigned uv, unsigned w,
unsigned skinSlots, unsigned texMtxs) const;
std::string makeFrag(const ShaderFunction& lighting=ShaderFunction()) const;
std::string makeFrag(const ShaderFunction& lighting,
std::string makeFrag(size_t blockCount, const char** blockNames,
const ShaderFunction& lighting=ShaderFunction()) const;
std::string makeFrag(size_t blockCount, const char** blockNames,
const ShaderFunction& lighting,
const ShaderFunction& post) const;
private:
std::string GenerateVertInStruct(unsigned col, unsigned uv, unsigned w) const;
std::string GenerateVertToFragStruct() const;
std::string GenerateVertUniformStruct(unsigned skinSlots, unsigned texMtxs) const;
std::string GenerateVertUniformStruct(unsigned skinSlots) const;
std::string EmitVec3(const atVec4f& vec) const
{

3
hecl/include/hecl/Runtime.hpp
View File

@ -260,9 +260,10 @@ struct HMDLData
boo::IShaderDataBinding* newShaderDataBindng(boo::IGraphicsDataFactory::Context& ctx,
boo::IShaderPipeline* shader,
size_t ubufCount, boo::IGraphicsBuffer** ubufs,
const boo::PipelineStage* ubufStages,
size_t texCount, boo::ITexture** texs)
{return ctx.newShaderDataBinding(shader, m_vtxFmt, m_vbo, nullptr, m_ibo,
ubufCount, ubufs, nullptr, nullptr, texCount, texs);}
ubufCount, ubufs, ubufStages, nullptr, nullptr, texCount, texs);}
};
}

59
hecl/lib/Backend/Metal.cpp
View File

@ -90,7 +90,7 @@ std::string Metal::GenerateVertToFragStruct() const
return retval + "};\n";
}
std::string Metal::GenerateVertUniformStruct(unsigned skinSlots, unsigned texMtxs) const
std::string Metal::GenerateVertUniformStruct(unsigned skinSlots) const
{
if (skinSlots == 0)
skinSlots = 1;
@ -98,11 +98,10 @@ std::string Metal::GenerateVertUniformStruct(unsigned skinSlots, unsigned texMtx
"{\n"
" float4x4 mv[%u];\n"
" float4x4 mvInv[%u];\n"
" float4x4 proj;\n",
" float4x4 proj;\n"
"};\n",
skinSlots, skinSlots);
if (texMtxs)
retval += hecl::Format(" float4x4 texMtxs[%u];\n", texMtxs);
return retval + "};\n";
return retval;
}
void Metal::reset(const IR& ir, Diagnostics& diag)
@ -114,11 +113,16 @@ void Metal::reset(const IR& ir, Diagnostics& diag)
std::string Metal::makeVert(unsigned col, unsigned uv, unsigned w,
unsigned s, unsigned tm) const
{
std::string tmStr;
if (tm)
tmStr = hecl::Format(",\nconstant float4x4 texMtxs[%u] [[ buffer(3) ]]", tm);
std::string retval = "#include <metal_stdlib>\nusing namespace metal;\n" +
GenerateVertInStruct(col, uv, w) + "\n" +
GenerateVertToFragStruct() + "\n" +
GenerateVertUniformStruct(s, tm) +
"\nvertex VertToFrag vmain(VertData v [[ stage_in ]], constant HECLVertUniform& vu [[ buffer(2) ]])\n{\n"
GenerateVertUniformStruct(s) +
"\nvertex VertToFrag vmain(VertData v [[ stage_in ]],\n"
" constant HECLVertUniform& vu [[ buffer(2) ]]" + tmStr + ")\n"
"{\n"
" VertToFrag vtf;\n";
if (s)
@ -150,7 +154,7 @@ std::string Metal::makeVert(unsigned col, unsigned uv, unsigned w,
retval += hecl::Format(" vtf.tcgs%u = %s;\n", tcgIdx,
EmitTexGenSource2(tcg.m_src, tcg.m_uvIdx).c_str());
else
retval += hecl::Format(" vtf.tcgs%u = (vu.texMtxs[%u] * %s).xy;\n", tcgIdx, tcg.m_mtx,
retval += hecl::Format(" vtf.tcgs%u = (texMtxs[%u] * %s).xy;\n", tcgIdx, tcg.m_mtx,
EmitTexGenSource4(tcg.m_src, tcg.m_uvIdx).c_str());
++tcgIdx;
}
@ -158,7 +162,8 @@ std::string Metal::makeVert(unsigned col, unsigned uv, unsigned w,
return retval + " return vtf;\n}\n";
}
std::string Metal::makeFrag(const ShaderFunction& lighting) const
std::string Metal::makeFrag(size_t blockCount, const char** blockNames,
const ShaderFunction& lighting) const
{
std::string lightingSrc;
if (lighting.m_source)
@ -168,7 +173,16 @@ std::string Metal::makeFrag(const ShaderFunction& lighting) const
if (m_texMapEnd)
{
for (int i=0 ; i<m_texMapEnd ; ++i)
texMapDecl += hecl::Format("\n, texture2d<float> tex%u [[ texture(%u) ]]", i, i);
texMapDecl += hecl::Format(",\ntexture2d<float> tex%u [[ texture(%u) ]]", i, i);
}
std::string blockCall;
for (size_t i=0 ; i<blockCount ; ++i)
{
texMapDecl += hecl::Format(",\nconstant %s& block%" PRISize " [[ buffer(%" PRISize ") ]]", blockNames[i], i, i + 4);
if (blockCall.size())
blockCall += ", ";
blockCall += hecl::Format("block%" PRISize, i);
}
std::string retval = "#include <metal_stdlib>\nusing namespace metal;\n"
@ -181,7 +195,7 @@ std::string Metal::makeFrag(const ShaderFunction& lighting) const
if (m_lighting)
{
if (lighting.m_entry)
retval += hecl::Format(" float4 lighting = %s();\n", lighting.m_entry);
retval += hecl::Format(" float4 lighting = %s(%s, vtf.mvPos, vtf.mvNorm);\n", lighting.m_entry, blockCall.c_str());
else
retval += " float4 lighting = float4(1.0,1.0,1.0,1.0);\n";
}
@ -199,7 +213,8 @@ std::string Metal::makeFrag(const ShaderFunction& lighting) const
return retval + "}\n";
}
std::string Metal::makeFrag(const ShaderFunction& lighting,
std::string Metal::makeFrag(size_t blockCount, const char** blockNames,
const ShaderFunction& lighting,
const ShaderFunction& post) const
{
std::string lightingSrc;
@ -218,19 +233,28 @@ std::string Metal::makeFrag(const ShaderFunction& lighting,
if (m_texMapEnd)
{
for (int i=0 ; i<m_texMapEnd ; ++i)
texMapDecl += hecl::Format("texture2d<float> tex%u [[ texture(%u) ]],\n", i, i);
texMapDecl += hecl::Format(",\ntexture2d<float> tex%u [[ texture(%u) ]]", i, i);
}
std::string blockCall;
for (size_t i=0 ; i<blockCount ; ++i)
{
texMapDecl += hecl::Format(",\nconstant %s& block%" PRISize " [[ buffer(%" PRISize ") ]]", blockNames[i], i, i + 4);
if (blockCall.size())
blockCall += ", ";
blockCall += hecl::Format("block%" PRISize, i);
}
std::string retval = "#include <metal_stdlib>\nusing namespace metal;\n"
"constexpr sampler samp(address::repeat, filter::linear, mip_filter::linear);\n" +
GenerateVertToFragStruct() + "\n" +
lightingSrc + "\n" +
"fragment float4 fmain(VertToFrag vtf [[ stage_in ]],\n" + texMapDecl + ")\n{\n";
"fragment float4 fmain(VertToFrag vtf [[ stage_in ]]" + texMapDecl + ")\n{\n";
if (m_lighting)
{
if (lighting.m_entry)
retval += hecl::Format(" float4 lighting = %s();\n", lighting.m_entry);
retval += hecl::Format(" float4 lighting = %s(%s, vtf.mvPos, vtf.mvNorm);\n", lighting.m_entry, blockCall.c_str());
else
retval += " float4 lighting = float4(1.0,1.0,1.0,1.0);\n";
}
@ -274,7 +298,7 @@ struct MetalBackendFactory : IShaderBackendFactory
tag.getSkinSlotCount(), tag.getTexMtxCount());
cachedSz += vertSource.size() + 1;
std::string fragSource = m_backend.makeFrag();
std::string fragSource = m_backend.makeFrag(0, nullptr);
cachedSz += fragSource.size() + 1;
objOut =
static_cast<boo::MetalDataFactory::Context&>(ctx).
@ -345,7 +369,8 @@ struct MetalBackendFactory : IShaderBackendFactory
fragSources.reserve(extensionSlots.size());
for (const ShaderCacheExtensions::ExtensionSlot& slot : extensionSlots)
{
fragSources.push_back(m_backend.makeFrag(slot.lighting, slot.post));
fragSources.push_back(m_backend.makeFrag(slot.blockCount, slot.blockNames, slot.lighting, slot.post));
fprintf(stderr, "%s\n", fragSources.back().c_str());
cachedSz += fragSources.back().size() + 1;
boo::IShaderPipeline* ret =
static_cast<boo::MetalDataFactory::Context&>(ctx).

2
hecl/test/main.cpp
View File

@ -144,7 +144,7 @@ struct HECLApplicationCallback : boo::IApplicationCallback
vubo = ctx.newDynamicBuffer(boo::BufferUse::Uniform, sizeof(VertexUBO), 1);
/* Assemble data binding */
binding = testData.newShaderDataBindng(ctx, testShaderObj, 1, (boo::IGraphicsBuffer**)&vubo, 1, &texture);
binding = testData.newShaderDataBindng(ctx, testShaderObj, 1, (boo::IGraphicsBuffer**)&vubo, nullptr, 1, &texture);
return true;
});