Function modifySharpenPass

src/dll/post.cpp:89–158

}

void modifySharpenPass(ID3D11DeviceContext *const context)
{
    ZoneScopedN(__FUNCTION__);

    static ID3D11Texture2D *logoTex;
    static ID3D11Buffer *cb;
    static bool resourcesCreated = false;

    struct Constants
    {
        float logoIntensity;
        float sharpenAmount;
        // this must be a 4 byte type, as a regular bool can potentially break the
        // HLSL shader logic by not initialising all of the memory.
        BOOL sharpenEnabled;
        float pad;
    } constants = {
        // Fade off the logo with time
        (g_frameConstants.gameTime > 0.0f ? (1.f - glm::smoothstep(10.0f, 12.0f, g_frameConstants.gameTime)) : 0.0f),
        g_settings.sharpening, g_settings.sharpeningEnabled
        // TODO! Is pad using initialised memory? If it isn't, this could cause
        // cache misses.
    };

    if (!resourcesCreated)
    {
        resourcesCreated = true;

        {
            const std::string logoPath = getDataFilePath("textures\\aliasIsolationLogo.png", false);
            int x, y, n;
            unsigned char *data = stbi_load(logoPath.c_str(), &x, &y, &n, 4);
            if (data && 4 == n)
            {
                D3D11_TEXTURE2D_DESC texDesc;
                ZeroMemory(&texDesc, sizeof(texDesc));
                texDesc.Width = x;
                texDesc.Height = y;
                texDesc.MipLevels = 1;
                texDesc.ArraySize = 1;
                texDesc.Format = DXGI_FORMAT_R8G8B8A8_UNORM;
                texDesc.SampleDesc.Count = 1;
                texDesc.SampleDesc.Quality = 0;
                texDesc.Usage = D3D11_USAGE_IMMUTABLE;
                texDesc.BindFlags = D3D11_BIND_SHADER_RESOURCE;

                D3D11_SUBRESOURCE_DATA sub;
                ZeroMemory(&sub, sizeof(sub));
                sub.pSysMem = data;
                sub.SysMemPitch = x * n;
                sub.SysMemSlicePitch = x * y * n;

                DX_CHECK(g_device->CreateTexture2D(&texDesc, &sub, &logoTex));
            }
            stbi_image_free(data);
        }

        cb = createConstantBuffer(sizeof(constants));