Added IRenderDeviceGL::CreateDummyTexture method (API version 240047)

4 files changed, 24 insertions, 5 deletions

diff --git a/Graphics/GraphicsEngineOpenGL/include/RenderDeviceGLImpl.h b/Graphics/GraphicsEngineOpenGL/include/RenderDeviceGLImpl.h
index 1f2bf173..5045ae75 100644
--- a/Graphics/GraphicsEngineOpenGL/include/RenderDeviceGLImpl.h
+++ b/Graphics/GraphicsEngineOpenGL/include/RenderDeviceGLImpl.h
@@ -92,6 +92,9 @@ public:
     /// Implementation of IRenderDeviceGL::CreateBufferFromGLHandle().
     virtual void CreateBufferFromGLHandle(Uint32 GLHandle, const BufferDesc& BuffDesc, RESOURCE_STATE InitialState, IBuffer** ppBuffer) override final;
 
+    /// Implementation of IRenderDeviceGL::CreateDummyTexture().
+    virtual void CreateDummyTexture(const TextureDesc& TexDesc, RESOURCE_STATE InitialState, ITexture** ppTexture) override final;
+
     /// Implementation of IRenderDevice::ReleaseStaleResources() in OpenGL backend.
     virtual void ReleaseStaleResources(bool ForceRelease = false) override final {}
 
@@ -107,8 +110,6 @@ public:
     void      OnDestroyPSO(IPipelineState* pPSO);
     void      OnDestroyBuffer(IBuffer* pBuffer);
 
-    void CreateDummyTexture(const TextureDesc& TexDesc, RESOURCE_STATE InitialState, class TextureBaseGL** ppTexture);
-
     size_t GetCommandQueueCount() const { return 1; }
     Uint64 GetCommandQueueMask() const { return Uint64{1}; }
 
diff --git a/Graphics/GraphicsEngineOpenGL/interface/RenderDeviceGL.h b/Graphics/GraphicsEngineOpenGL/interface/RenderDeviceGL.h
index 85a815d0..7b560f87 100644
--- a/Graphics/GraphicsEngineOpenGL/interface/RenderDeviceGL.h
+++ b/Graphics/GraphicsEngineOpenGL/interface/RenderDeviceGL.h
@@ -75,6 +75,24 @@ public:
                                           const BufferDesc& BuffDesc,
                                           RESOURCE_STATE    InitialState,
                                           IBuffer**         ppBuffer) = 0;
+
+
+    /// Creates a dummy texture with null handle.
+
+    /// The main usage of dummy textures is to serve as render target and depth buffer
+    /// proxies in a swap chain. When dummy color buffer is set as render target, the
+    /// engine binds default FBO provided by the swap chain.
+    ///
+    /// \param [in]  TexDesc      - Texture description.
+    /// \param [in]  InitialState - Initial texture state. See Diligent::RESOURCE_STATE.
+    /// \param [out] ppTexture    - Address of the memory location where the pointer to the
+    ///                             texture interface will be stored.
+    ///                             The function calls AddRef(), so that the new object will contain
+    ///                             one reference.
+    /// \note  Only RESOURCE_DIM_TEX_2D dummy textures are supported.
+    virtual void CreateDummyTexture(const TextureDesc& TexDesc,
+                                    RESOURCE_STATE     InitialState,
+                                    ITexture**         ppTexture) = 0;
 };
 
 } // namespace Diligent
diff --git a/Graphics/GraphicsEngineOpenGL/src/RenderDeviceGLImpl.cpp b/Graphics/GraphicsEngineOpenGL/src/RenderDeviceGLImpl.cpp
index f813cb58..02dacc62 100644
--- a/Graphics/GraphicsEngineOpenGL/src/RenderDeviceGLImpl.cpp
+++ b/Graphics/GraphicsEngineOpenGL/src/RenderDeviceGLImpl.cpp
@@ -291,7 +291,7 @@ void RenderDeviceGLImpl::CreateTextureFromGLHandle(Uint32 GLHandle, const Textur
     );
 }
 
-void RenderDeviceGLImpl::CreateDummyTexture(const TextureDesc& TexDesc, RESOURCE_STATE InitialState, TextureBaseGL** ppTexture)
+void RenderDeviceGLImpl::CreateDummyTexture(const TextureDesc& TexDesc, RESOURCE_STATE InitialState, ITexture** ppTexture)
 {
     CreateDeviceObject(
         "texture", TexDesc, ppTexture,
diff --git a/Graphics/GraphicsEngineOpenGL/src/SwapChainGLImpl.cpp b/Graphics/GraphicsEngineOpenGL/src/SwapChainGLImpl.cpp
index fc33ccf9..a5e0dd93 100644
--- a/Graphics/GraphicsEngineOpenGL/src/SwapChainGLImpl.cpp
+++ b/Graphics/GraphicsEngineOpenGL/src/SwapChainGLImpl.cpp
@@ -82,7 +82,7 @@ void SwapChainGLImpl::CreateDummyBuffers(RenderDeviceGLImpl* pRenderDeviceGL)
     ColorBuffDesc.Height    = m_SwapChainDesc.Height;
     ColorBuffDesc.Format    = m_SwapChainDesc.ColorBufferFormat;
     ColorBuffDesc.BindFlags = BIND_RENDER_TARGET;
-    RefCntAutoPtr<TextureBaseGL> pDummyColorBuffer;
+    RefCntAutoPtr<ITexture> pDummyColorBuffer;
     pRenderDeviceGL->CreateDummyTexture(ColorBuffDesc, RESOURCE_STATE_RENDER_TARGET, &pDummyColorBuffer);
     m_pRenderTargetView = ValidatedCast<TextureViewGLImpl>(pDummyColorBuffer->GetDefaultView(TEXTURE_VIEW_RENDER_TARGET));
 
@@ -90,7 +90,7 @@ void SwapChainGLImpl::CreateDummyBuffers(RenderDeviceGLImpl* pRenderDeviceGL)
     DepthBuffDesc.Name        = "Main depth buffer stub";
     DepthBuffDesc.Format      = m_SwapChainDesc.DepthBufferFormat;
     DepthBuffDesc.BindFlags   = BIND_DEPTH_STENCIL;
-    RefCntAutoPtr<TextureBaseGL> pDummyDepthBuffer;
+    RefCntAutoPtr<ITexture> pDummyDepthBuffer;
     pRenderDeviceGL->CreateDummyTexture(DepthBuffDesc, RESOURCE_STATE_DEPTH_WRITE, &pDummyDepthBuffer);
     m_pDepthStencilView = ValidatedCast<TextureViewGLImpl>(pDummyDepthBuffer->GetDefaultView(TEXTURE_VIEW_DEPTH_STENCIL));
 }