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Added Metal shader support

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This commit is contained in:
Jack Andersen
2015-11-27 18:05:27 -10:00
parent aeb69955ae
commit 4a7433bd43
3 changed files with 140 additions and 0 deletions
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80
specter/lib/TextView.cpp
View File

@@ -79,6 +79,8 @@ void TextView::System::init(boo::GLDataFactory* factory, FontCache* fcache)
false, false, false);
}
#if _WIN32
void TextView::System::init(boo::ID3DDataFactory* factory, FontCache* fcache)
{
m_fcache = fcache;
@@ -178,6 +180,84 @@ void TextView::System::init(boo::ID3DDataFactory* factory, FontCache* fcache)
boo::BlendFactor::SrcColor1, boo::BlendFactor::InvSrcColor1,
false, false, false);
}
#elif BOO_HAS_METAL
void TextView::System::init(boo::MetalDataFactory* factory, FontCache* fcache)
{
m_fcache = fcache;
static const char* VS =
"#include <metal_stdlib>\n"
"using namespace metal;\n"
"struct VertData\n"
"{\n"
" float3 posIn[4];\n"
" float4x4 mvMtx;\n"
" float3 uvIn[4];\n"
" float4 colorIn;\n"
"};\n"
SPECTER_VIEW_VERT_BLOCK_METAL
"struct VertToFrag\n"
"{\n"
" float4 position [[ position ]];\n"
" float3 uv;\n"
" float4 color;\n"
"};\n"
"vertex VertToFrag vmain(constant VertData* va [[ buffer(1) ]],\n"
" uint vertId [[ vertex_id ]], uint instId [[ instance_id ]],\n"
" constant SpecterViewBlock& view [[ buffer(2) ]])\n"
"{\n"
" VertToFrag vtf;\n"
" constant VertData& v = va[instId];\n"
" vtf.uv = v.uvIn[vertId];\n"
" vtf.color = v.colorIn;\n"
" vtf.position = view.mv * v.mvMtx * float4(v.posIn[vertId], 1.0);\n"
" return vtf;\n"
"}\n";
static const char* FSReg =
"#include <metal_stdlib>\n"
"using namespace metal;\n"
"constexpr sampler samp(address::repeat);\n"
"struct VertToFrag\n"
"{\n"
" float4 position [[ position ]];\n"
" float3 uv;\n"
" float4 color;\n"
"};\n"
"fragment float4 fmain(VertToFrag vtf [[ stage_in ]], texture2d_array<float> fontTex [[ texture(0) ]])\n"
"{\n"
" float4 colorOut = vtf.color;\n"
" colorOut.a = fontTex.sample(samp, vtf.uv.xy, vtf.uv.z).r;\n"
" return colorOut;\n"
"}\n";
boo::VertexElementDescriptor vdescs[] =
{
{nullptr, nullptr, boo::VertexSemantic::Position4 | boo::VertexSemantic::Instanced, 0},
{nullptr, nullptr, boo::VertexSemantic::Position4 | boo::VertexSemantic::Instanced, 1},
{nullptr, nullptr, boo::VertexSemantic::Position4 | boo::VertexSemantic::Instanced, 2},
{nullptr, nullptr, boo::VertexSemantic::Position4 | boo::VertexSemantic::Instanced, 3},
{nullptr, nullptr, boo::VertexSemantic::ModelView | boo::VertexSemantic::Instanced, 0},
{nullptr, nullptr, boo::VertexSemantic::ModelView | boo::VertexSemantic::Instanced, 1},
{nullptr, nullptr, boo::VertexSemantic::ModelView | boo::VertexSemantic::Instanced, 2},
{nullptr, nullptr, boo::VertexSemantic::ModelView | boo::VertexSemantic::Instanced, 3},
{nullptr, nullptr, boo::VertexSemantic::UV4 | boo::VertexSemantic::Instanced, 0},
{nullptr, nullptr, boo::VertexSemantic::UV4 | boo::VertexSemantic::Instanced, 1},
{nullptr, nullptr, boo::VertexSemantic::UV4 | boo::VertexSemantic::Instanced, 2},
{nullptr, nullptr, boo::VertexSemantic::UV4 | boo::VertexSemantic::Instanced, 3},
{nullptr, nullptr, boo::VertexSemantic::Color | boo::VertexSemantic::Instanced}
};
m_vtxFmt = factory->newVertexFormat(13, vdescs);
m_regular =
factory->newShaderPipeline(VS, FSReg, m_vtxFmt, 1,
boo::BlendFactor::SrcAlpha, boo::BlendFactor::InvSrcAlpha,
false, false, false);
}
#endif
TextView::TextView(ViewSystem& system, FontTag font, size_t capacity)
: View(system),