[TextureBaseGL] Lack capability of creating seperated stencil view in OpenGL

[hzqst]

Since TEX_FORMAT_X24_TYPELESS_G8_UINT is not implemented in GL yet:

//GLTypeConversions.cpp
m_FmtToGLFmtMap[TEX_FORMAT_R24G8_TYPELESS]         = GL_DEPTH24_STENCIL8;
m_FmtToGLFmtMap[TEX_FORMAT_D24_UNORM_S8_UINT]      = GL_DEPTH24_STENCIL8;
m_FmtToGLFmtMap[TEX_FORMAT_R24_UNORM_X8_TYPELESS]  = GL_DEPTH24_STENCIL8;
m_FmtToGLFmtMap[TEX_FORMAT_X24_TYPELESS_G8_UINT]   = 0;//GL_DEPTH24_STENCIL8;

I have to do those manually to load stencil value from a stencil view:

glTextureView(StencilView, tex2D, DepthTex, GL_DEPTH24_STENCIL8, 0, 1, 0, 1);

glBindTexture(GL_TEXTURE_2D, StencilView);
glTexParameteri(GL_TEXTURE_2D, GL_DEPTH_STENCIL_TEXTURE_MODE, GL_STENCIL_INDEX);
glBindTexture(GL_TEXTURE_2D, 0);