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Initial work on D3D11 buffers

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This commit is contained in:
Henrik Rydgard 2017-02-07 18:04:31 +01:00
parent 08cebe99fc
commit 099b628097
2 changed files with 42 additions and 3 deletions
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1
ext/native/thin3d/thin3d.h
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@ -113,6 +113,7 @@ enum BufferUsageFlag : int {
VERTEXDATA = 1,
INDEXDATA = 2,
GENERIC = 4,
UNIFORM = 8,
DYNAMIC = 16,
};

44
ext/native/thin3d/thin3d_d3d11.cpp
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@ -118,6 +118,11 @@ private:
ID3D11GeometryShader *curGS_ = nullptr;
D3D11_PRIMITIVE_TOPOLOGY curTopology_ = D3D11_PRIMITIVE_TOPOLOGY_UNDEFINED;
ID3D11Buffer *nextVertexBuffers_[4];
int nextVertexBufferOffsets_[4];
ID3D11Buffer *nextIndexBuffer_;
int nextIndexBufferOffset_;
// Dynamic state
float blendFactor_[4];
bool blendFactorDirty_ = false;
@ -689,25 +694,58 @@ void D3D11DrawContext::ApplyCurrentState() {
class D3D11Buffer : public Buffer {
public:
ID3D11Buffer *buf;
~D3D11Buffer() {
if (buf)
buf->Release();
if (srView)
srView->Release();
}
virtual void SetData(const uint8_t *data, size_t size) override {
}
virtual void SubData(const uint8_t *data, size_t offset, size_t size) override {
}
ID3D11Buffer *buf;
ID3D11ShaderResourceView *srView;
};
Buffer *D3D11DrawContext::CreateBuffer(size_t size, uint32_t usageFlags) {
D3D11Buffer *b = new D3D11Buffer();
D3D11_BUFFER_DESC desc{};
desc.ByteWidth = (UINT)size;
desc.BindFlags = 0;
if (usageFlags & VERTEXDATA)
desc.BindFlags |= D3D11_BIND_VERTEX_BUFFER;
if (usageFlags & INDEXDATA)
desc.BindFlags |= D3D11_BIND_INDEX_BUFFER;
if (usageFlags & UNIFORM)
desc.BindFlags |= D3D11_BIND_CONSTANT_BUFFER;
desc.CPUAccessFlags = D3D11_CPU_ACCESS_WRITE;
desc.Usage = D3D11_USAGE_DYNAMIC;
HRESULT hr = device_->CreateBuffer(&desc, nullptr, &b->buf);
if (FAILED(hr)) {
delete b;
return nullptr;
}
device_->CreateShaderResourceView(b->buf, nullptr, &b->srView);
return b;
}
void D3D11DrawContext::BindVertexBuffers(int start, int count, Buffer **buffers, int *offsets) {
// Lazy application
for (int i = 0; i < count; i++) {
D3D11Buffer *buf = (D3D11Buffer *)buffers[i];
nextVertexBuffers_[start + i] = buf->buf;
nextVertexBufferOffsets_[start + i] = offsets[i];
}
}
void D3D11DrawContext::BindIndexBuffer(Buffer *indexBuffer, int offset) {
D3D11Buffer *buf = (D3D11Buffer *)indexBuffer;
// Lazy application
nextIndexBuffer_ = buf->buf;
nextIndexBufferOffset_ = offset;
}
void D3D11DrawContext::Draw(int vertexCount, int offset) {