93 lines
No EOL
2.1 KiB
C++
93 lines
No EOL
2.1 KiB
C++
#include "ltpch.h"
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#include "dxBuffers.h"
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#include "dxSharedContext.h"
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namespace Light {
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dxVertexBuffer::dxVertexBuffer(unsigned int count, unsigned int stride, float* vertices, void* sharedContext)
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: m_Stride(stride)
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{
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HRESULT hr;
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dxSharedContext* dxContext = static_cast<dxSharedContext*>(sharedContext);
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LT_ENGINE_ASSERT(dxContext, "dxShader::dxShader: invalid dxContext");
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m_Device = dxContext->device;
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m_DeviceContext = dxContext->deviceContext;
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D3D11_BUFFER_DESC desc = { 0 };
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desc.BindFlags = D3D11_BIND_VERTEX_BUFFER;
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desc.Usage = D3D11_USAGE_DYNAMIC;
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desc.CPUAccessFlags = D3D11_CPU_ACCESS_WRITE;
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desc.ByteWidth = count * stride;
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desc.StructureByteStride = stride;
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DXC(m_Device->CreateBuffer(&desc, nullptr, &m_Buffer));
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}
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dxVertexBuffer::~dxVertexBuffer()
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{
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}
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void* dxVertexBuffer::Map()
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{
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m_DeviceContext->Map(m_Buffer.Get(), NULL, D3D11_MAP_WRITE_DISCARD, NULL, &m_Map);
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return m_Map.pData;
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}
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void dxVertexBuffer::UnMap()
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{
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m_DeviceContext->Unmap(m_Buffer.Get(), NULL);
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}
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void dxVertexBuffer::Bind()
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{
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static const unsigned int offset = 0u;
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m_DeviceContext->IASetVertexBuffers(0u, 1u, m_Buffer.GetAddressOf(), &m_Stride, &offset);
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}
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void dxVertexBuffer::UnBind()
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{
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}
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dxIndexBuffer::dxIndexBuffer(unsigned int count, unsigned int* indices, void* sharedContext)
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{
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HRESULT hr;
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dxSharedContext* dxContext = static_cast<dxSharedContext*>(sharedContext);
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LT_ENGINE_ASSERT(dxContext, "dxShader::dxShader: invalid dxContext");
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m_Device = dxContext->device;
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m_DeviceContext = dxContext->deviceContext;
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D3D11_BUFFER_DESC bufferDesc = { 0 };
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D3D11_SUBRESOURCE_DATA sd = { 0 };
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bufferDesc.BindFlags = D3D11_BIND_INDEX_BUFFER;
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bufferDesc.Usage = D3D11_USAGE_DEFAULT;
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bufferDesc.ByteWidth = count * sizeof(unsigned int);
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bufferDesc.StructureByteStride = sizeof(unsigned int);
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sd.pSysMem = indices;
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DXC(m_Device->CreateBuffer(&bufferDesc, &sd, &m_Buffer));
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}
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dxIndexBuffer::~dxIndexBuffer()
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{
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}
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void dxIndexBuffer::Bind()
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{
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m_DeviceContext->IASetIndexBuffer(m_Buffer.Get(), DXGI_FORMAT_R32_UINT, 0u);
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}
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void dxIndexBuffer::UnBind()
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{
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}
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} |