Vec3 FlexGrid::Measure()
{
PrepareRender();
return size.Promote();
}
void CFXAPISample::Render ()
{
PrepareRender ();
static int frameNumber = 0;
frameNumber++;
deviceContext_->OMSetDepthStencilState (depthStencilState_.Get (), 0);
deviceContext_->VSSetShader (vertexShader_.Get (), nullptr, 0);
deviceContext_->PSSetShader (pixelShader_.Get (), nullptr, 0);
deviceContext_->IASetIndexBuffer (indexBuffer_.Get (), DXGI_FORMAT_R32_UINT, 0);
ID3D11Buffer* vertexBuffers[] = { vertexBuffer_.Get () };
UINT strides[] = { sizeof (Vertex) };
UINT offsets[] = { 0 };
deviceContext_->IASetVertexBuffers (0, 1, vertexBuffers, strides, offsets);
deviceContext_->IASetInputLayout (inputLayout_.Get ());
deviceContext_->IASetPrimitiveTopology (D3D11_PRIMITIVE_TOPOLOGY_TRIANGLELIST);
/**
What happens here is:
* On every odd frame, render an increasingly red color into texture_
* In every frame, blit texture into the back buffer
*/
if (cfxEnabled_) {
// We're starting to use texture_, notify the API. Notice that we need
// to notify even if we don't actually write to it in this frame.
agsDriverExtensions_NotifyResourceBeginAllAccess (agsContext_, texture_.Get ());
}
if ((frameNumber & 1) == 1) {
const float clearColor[] = {
(frameNumber % 256) / 256.0f, 0.042f, 0.042f,
1
};
D3D11_VIEWPORT viewports[1];
viewports[0].Height = 1080;
viewports[0].Width = 1920;
viewports[0].MinDepth = 0;
viewports[0].MaxDepth = 1;
viewports[0].TopLeftX = 0;
viewports[0].TopLeftY = 0;
deviceContext_->RSSetViewports (1, viewports);
ID3D11ShaderResourceView* psSRVs[] = {
uploadTextureSRV_.Get ()
};
ID3D11RenderTargetView* renderTargetViews[] = {
textureRTV_.Get ()
};
deviceContext_->OMSetRenderTargets (1, renderTargetViews, nullptr);
deviceContext_->PSSetShaderResources (0, 1, psSRVs);
deviceContext_->UpdateSubresource (uploadTexture_.Get (),
0, nullptr, clearColor, sizeof (float) * 4, sizeof (float) * 4);
deviceContext_->DrawIndexed (6, 0, 0);
if (cfxEnabled_) {
// We're done with writes to texture_, notify the API so it can
// start copying
agsDriverExtensions_NotifyResourceEndWrites (agsContext_, texture_.Get (),
nullptr, nullptr, 0);
}
}
D3D11_VIEWPORT viewports[1];
viewports[0].Height = 1080;
viewports[0].Width = 1920;
viewports[0].MinDepth = 0;
viewports[0].MaxDepth = 1;
viewports[0].TopLeftX = 0;
viewports[0].TopLeftY = 0;
deviceContext_->RSSetViewports (1, viewports);
ID3D11RenderTargetView* renderTargetViews[] = {
renderTargetView_.Get ()
};
deviceContext_->OMSetRenderTargets (1, renderTargetViews, nullptr);
ID3D11ShaderResourceView* psSRVs[] = {
textureSRV_.Get ()
};
deviceContext_->PSSetShaderResources (0, 1, psSRVs);
deviceContext_->DrawIndexed (6, 0, 0);
if (cfxEnabled_) {
// We're done using texture_ for this frame, notify the API
agsDriverExtensions_NotifyResourceEndAllAccess (agsContext_, texture_.Get ());
}
ID3D11ShaderResourceView* psNullSRVs[] = {
nullptr
};
deviceContext_->PSSetShaderResources (0, 1, psNullSRVs);
FinalizeRender ();
}
