IRenderDeviceGL struct
Exposes OpenGL-specific functionality of a render device.
Contents
- Reference
Base classes
- struct IRenderDevice
- Render device interface.
Derived classes
- class IRenderDeviceGLES
- Interface to the render device object implemented in OpenGLES.
Public functions
-
auto CreateTextureFromGLHandle(Uint32 GLHandle,
Uint32 GLBindTarget,
const TextureDesc& TexDesc,
RESOURCE_
STATE InitialState, ITexture** ppTexture) -> void METHOD() virtual - Creates a texture from OpenGL handle.
-
auto CreateBufferFromGLHandle(Uint32 GLHandle,
const BufferDesc& BuffDesc,
RESOURCE_
STATE InitialState, IBuffer** ppBuffer) -> void METHOD() virtual - Creates a buffer from OpenGL handle.
-
auto CreateDummyTexture(const TextureDesc& TexDesc,
RESOURCE_
STATE InitialState, ITexture** ppTexture) -> void METHOD() virtual - Creates a dummy texture with null handle.
Function documentation
void METHOD() Diligent::
Creates a texture from OpenGL handle.
| Parameters | |
|---|---|
| GLHandle in | - OpenGL texture handle. |
| GLBindTarget in | - OpenGL bind target. If this parameter is null, the engine will automatically select the target based on texture type (e.g. RESOURCE_DIM_TEX_2D will map to GL_TEXTURE_2D). An application should typically use this paramter when the texture has non-standard bind target such as, GL_TEXTURE_EXTERNAL_OES. |
| TexDesc in | - Texture description. The engine can automatically set texture width, height, depth, mip levels count, and format. Remaining fields should be set up by the app. |
| InitialState in | - Initial texture state. See Diligent:: |
| ppTexture out | - 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. |
void METHOD() Diligent::
Creates a buffer from OpenGL handle.
| Parameters | |
|---|---|
| GLHandle in | - OpenGL buffer handle |
| BuffDesc in | - Buffer description. The engine can automatically recover buffer size, but the rest of the fields need to be set by the client. |
| InitialState in | - Initial buffer state. See Diligent:: |
| ppBuffer out | - 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. |
void METHOD() Diligent::
Creates a dummy texture with null handle.
| Parameters | |
|---|---|
| TexDesc in | - Texture description. |
| InitialState in | - Initial texture state. See Diligent:: |
| ppTexture out | - 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. |
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.