/// Reconstruct render resources based on the maximum render viewport size.
///
/// @param[in] width Maximum viewport width, in pixels.
/// @param[in] height Maximum viewport height, in pixels.
void RenderResourceManager::UpdateMaxViewportSize( uint32_t width, uint32_t height )
{
if ( width == m_viewportWidthMax && height == m_viewportHeightMax )
{
return;
}
m_spDepthStencilSurface.Release();
m_spShadowDepthTexture.Release();
m_spSceneTexture.Release();
Renderer* pRenderer = Renderer::GetInstance();
if ( !pRenderer )
{
m_viewportWidthMax = 0;
m_viewportHeightMax = 0;
m_shadowMode = GraphicsConfig::EShadowMode::NONE;
m_shadowDepthTextureUsableSize = 0;
return;
}
// Don't create any surfaces for zero-sized viewports.
if ( width == 0 || height == 0 )
{
m_viewportWidthMax = 0;
m_viewportHeightMax = 0;
return;
}
// Due to restrictions with render target settings on certain platforms (namely when using Direct3D), the scene
// texture, depth-stencil surface, and shadow depth texture must all be the same size.
// XXX WDI: Implement support for the NULL FOURCC format for Direct3D to avoid this restriction when possible.
uint32_t bufferWidth = Max( width, m_shadowDepthTextureUsableSize );
uint32_t bufferHeight = Max( height, m_shadowDepthTextureUsableSize );
m_spSceneTexture = pRenderer->CreateTexture2d(
bufferWidth,
bufferHeight,
1,
RENDERER_PIXEL_FORMAT_R16G16B16A16_FLOAT,
RENDERER_BUFFER_USAGE_RENDER_TARGET );
if ( !m_spSceneTexture )
{
HELIUM_TRACE(
TraceLevels::Error,
"Failed to create scene render texture of size %" PRIu32 "x%" PRIu32 ".\n",
bufferWidth,
bufferHeight );
}
m_spDepthStencilSurface = pRenderer->CreateDepthStencilSurface(
bufferWidth,
bufferHeight,
RENDERER_SURFACE_FORMAT_DEPTH_STENCIL,
0 );
if ( !m_spDepthStencilSurface )
{
HELIUM_TRACE(
TraceLevels::Error,
"Failed to create scene depth-stencil surface of size %" PRIu32 "x%" PRIu32 ".\n",
bufferWidth,
bufferHeight );
}
if ( m_shadowMode != GraphicsConfig::EShadowMode::NONE && m_shadowMode != GraphicsConfig::EShadowMode::INVALID &&
m_shadowDepthTextureUsableSize != 0 )
{
m_spShadowDepthTexture = pRenderer->CreateTexture2d(
bufferWidth,
bufferHeight,
1,
RENDERER_PIXEL_FORMAT_DEPTH,
RENDERER_BUFFER_USAGE_DEPTH_STENCIL );
if ( !m_spShadowDepthTexture )
{
HELIUM_TRACE(
TraceLevels::Error,
"Failed to create shadow depth texture of size %" PRIu32 "x%" PRIu32 ".\n",
bufferWidth,
bufferHeight );
}
}
}
