bool TextureShader::SetShaderParameters(ID3D11DeviceContext *pContext,
const XMMATRIX &worldMatrix,
const XMMATRIX &viewMatrix,
const XMMATRIX &projectionMatrix,
ID3D11ShaderResourceView *pSrv,
float width,
float height,
float xRes,
float yRes,
Vec2f poi,
Vec2f poi2)
{
HRESULT result;
D3D11_MAPPED_SUBRESOURCE mappedResource;
MatrixBufferType *transformDataBuffer;
unsigned int bufferNumber;
// Lock the constant buffer so it can be written to.
result = pContext->Map(m_pMatrixBuffer,
0,
D3D11_MAP_WRITE_DISCARD,
0,
&mappedResource);
if (FAILED(result))
{
return false;
}
transformDataBuffer = (MatrixBufferType *)mappedResource.pData;
// Transpose the matrices for shader and copy them into the constant buffer.
transformDataBuffer->world = XMMatrixTranspose(worldMatrix);
transformDataBuffer->view = XMMatrixTranspose(viewMatrix);
transformDataBuffer->projection = XMMatrixTranspose(projectionMatrix);
// Unlock the constant buffer.
pContext->Unmap(m_pMatrixBuffer, 0);
bufferNumber = 0;
pContext->VSSetConstantBuffers(bufferNumber, 1, &m_pMatrixBuffer);
// Pixel shader constant buffer
result = pContext->Map(m_perFameBufferPS,
0,
D3D11_MAP_WRITE_DISCARD,
0,
&mappedResource);
if (FAILED(result))
{
return false;
}
PerFrameBufferTypePS *pPerFrameDataBufferPS = (PerFrameBufferTypePS *)mappedResource.pData;
pPerFrameDataBufferPS->width = width;
pPerFrameDataBufferPS->height = height;
pPerFrameDataBufferPS->xRes = xRes;
pPerFrameDataBufferPS->yRes = yRes;
pPerFrameDataBufferPS->poi = poi.GetAsXMFloat2();
pPerFrameDataBufferPS->poi2 = poi2.GetAsXMFloat2();
pContext->Unmap(m_perFameBufferPS, 0);
pContext->PSSetConstantBuffers(1, 1, &m_perFameBufferPS);
pContext->PSSetShaderResources(0, 1, &pSrv);
return true;
}
