69 lines
2.0 KiB
C++
69 lines
2.0 KiB
C++
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#include "VertexShaderInput.h"
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#include "Graphics/Mesh.h"
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#include <sstream>
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#include <memory>
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using namespace Seele;
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List<PVertexShaderInput> VertexShaderInput::registeredInputs;
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std::mutex VertexShaderInput::registeredInputsLock;
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VertexShaderInput::VertexShaderInput(std::string name)
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: name(name)
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{
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std::scoped_lock lock(registeredInputsLock);
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registeredInputs.add(this);
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}
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VertexShaderInput::VertexShaderInput(MeshDescription description, std::string name)
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: declaration(description.declaration)
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, layout(description.layout)
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, name(name)
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{
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auto declStreams = declaration->getVertexStreams();
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std::copy(declStreams.begin(), declStreams.end(), streams.begin());
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uint32 positionStreamIndex = 0;
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positionDeclaration = new Gfx::VertexDeclaration();
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for (uint32 i = 0; i < declStreams.size(); i++)
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{
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if(description.layout[i] == Gfx::VertexAttribute::POSITION)
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{
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positionStreams[positionStreamIndex++] = declStreams[i];
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positionDeclaration->addVertexStream(declStreams[i]);
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}
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}
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std::scoped_lock lock(registeredInputsLock);
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registeredInputs.add(this);
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}
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VertexShaderInput::~VertexShaderInput()
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{
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registeredInputs.remove(registeredInputs.find(this));
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}
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void VertexShaderInput::getStreams(VertexInputStreamArray& outVertexStreams) const
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{
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for(uint32 i = 0; i < streams.size(); ++i)
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{
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const Gfx::VertexStream& stream = streams[i];
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if(stream.vertexBuffer == nullptr)
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{
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outVertexStreams.add(VertexInputStream(i, 0, nullptr));
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}
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else
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{
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outVertexStreams.add(VertexInputStream(i, stream.offset, stream.vertexBuffer));
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}
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}
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}
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void VertexShaderInput::getPositionOnlyStream(VertexInputStreamArray& outVertexStreams) const
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{
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for (uint32 i = 0; i < positionStreams.size(); ++i)
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{
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const Gfx::VertexStream& stream = positionStreams[i];
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outVertexStreams.add(VertexInputStream(i, stream.offset, stream.vertexBuffer));
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}
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}
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