Function caOnDraw

src/dll/post.cpp:162–253

// const char *const s_caString = "Chromatic Aberration";

bool caOnDraw(ID3D11DeviceContext *context, ID3D11PixelShader *currentPs, std::function<void()> origDrawFn)
{
    ZoneScopedN(__FUNCTION__);

    // Insert chromatic aberration after the sharpening pass
    if (g_sharpenPsHandle.isValid() && ShaderRegistry::getPs(g_sharpenPsHandle) == currentPs && currentPs != nullptr)
    {
        if (g_settings.chromaticAberrationEnabled)
        {
            TracyD3D11Zone(g_tracyD3D11Ctx, "Chromatic Aberration (ON)");
            // FrameMarkStart(s_caString);

            static ShaderHandle chromaticAberrationPsHandle;
            static bool resourcesCreated = false;
            static glm::uvec2 resourcesResolution;
            static ID3D11Texture2D *tempTex;
            static ID3D11Buffer *constantBuffer;

            const uint screenWidth = g_frameConstants.screenWidth;
            const uint screenHeight = g_frameConstants.screenHeight;

            struct Constants
            {
                float caAmount;
                float pad[3];
            } constants = {g_settings.chromaticAberration};

            if (!resourcesCreated || resourcesResolution != glm::uvec2(screenWidth, screenHeight))
            {
                resourcesCreated = true;
                resourcesResolution = glm::uvec2(screenWidth, screenHeight);

                chromaticAberrationPsHandle = ShaderRegistry::addPixelShader("chromaticAberration_ps.cso");

                {
                    D3D11_TEXTURE2D_DESC texDesc;
                    ZeroMemory(&texDesc, sizeof(texDesc));
                    texDesc.Width = screenWidth;
                    texDesc.Height = screenHeight;
                    texDesc.MipLevels = 1;
                    texDesc.ArraySize = 1;
                    texDesc.Format = DXGI_FORMAT_R8G8B8A8_UNORM;
                    texDesc.SampleDesc.Count = 1;
                    texDesc.SampleDesc.Quality = 0;
                    texDesc.Usage = D3D11_USAGE_DEFAULT;
                    texDesc.BindFlags = D3D11_BIND_SHADER_RESOURCE | D3D11_BIND_RENDER_TARGET;

                    DX_CHECK(g_device->CreateTexture2D(&texDesc, nullptr, &tempTex));
                }

                constantBuffer = createConstantBuffer(sizeof(Constants));
            }

            updateConstantBuffer(context, constantBuffer, &constants, sizeof(constants));

            CComPtr<ID3D11RenderTargetView> targetRtv = nullptr;
            context->OMGetRenderTargets(1, &targetRtv.p, nullptr);