You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
82 lines
2.1 KiB
82 lines
2.1 KiB
//============ Copyright (c) Valve Corporation, All rights reserved. ============
|
|
//
|
|
// cglmfbo.h
|
|
// GLMgr FBO's (render targets)
|
|
//
|
|
//===============================================================================
|
|
|
|
#ifndef CGLMFBO_H
|
|
#define CGLMFBO_H
|
|
|
|
#pragma once
|
|
|
|
// good FBO references / recaps
|
|
// http://www.songho.ca/opengl/gl_fbo.html
|
|
// http://www.gamedev.net/reference/articles/article2331.asp
|
|
|
|
// ext links
|
|
|
|
// http://www.opengl.org/registry/specs/EXT/framebuffer_object.txt
|
|
// http://www.opengl.org/registry/specs/EXT/framebuffer_multisample.txt
|
|
|
|
//===============================================================================
|
|
|
|
// tokens not in the SDK headers
|
|
|
|
#ifndef GL_DEPTH_STENCIL_ATTACHMENT_EXT
|
|
#define GL_DEPTH_STENCIL_ATTACHMENT_EXT 0x84F9
|
|
#endif
|
|
|
|
//===============================================================================
|
|
|
|
// forward declarations
|
|
|
|
class GLMContext;
|
|
|
|
enum EGLMFBOAttachment
|
|
{
|
|
kAttColor0, kAttColor1, kAttColor2, kAttColor3,
|
|
kAttDepth, kAttStencil, kAttDepthStencil,
|
|
kAttCount
|
|
};
|
|
|
|
struct GLMFBOTexAttachParams
|
|
{
|
|
CGLMTex *m_tex;
|
|
int m_face; // keep zero if not cube map
|
|
int m_mip; // keep zero if notmip mapped
|
|
int m_zslice; // keep zero if not a 3D tex
|
|
};
|
|
|
|
class CGLMFBO
|
|
{
|
|
friend class GLMContext;
|
|
friend class GLMTester;
|
|
friend class CGLMTex;
|
|
|
|
friend struct IDirect3D9;
|
|
friend struct IDirect3DDevice9;
|
|
|
|
public:
|
|
CGLMFBO( GLMContext *ctx );
|
|
~CGLMFBO( );
|
|
|
|
protected:
|
|
void TexAttach( GLMFBOTexAttachParams *params, EGLMFBOAttachment attachIndex, GLenum fboBindPoint = GL_FRAMEBUFFER_EXT );
|
|
void TexDetach( EGLMFBOAttachment attachIndex, GLenum fboBindPoint = GL_FRAMEBUFFER_EXT );
|
|
// you can also pass GL_READ_FRAMEBUFFER_EXT or GL_DRAW_FRAMEBUFFER_EXT to selectively bind the receiving FBO to one or the other.
|
|
|
|
void TexScrub( CGLMTex *tex );
|
|
// search and destroy any attachment for the named texture
|
|
|
|
bool IsReady( void ); // aka FBO completeness check - ready to draw
|
|
|
|
GLMContext *m_ctx; // link back to parent context
|
|
|
|
GLuint m_name; // name of this FBO in the context
|
|
|
|
GLMFBOTexAttachParams m_attach[ kAttCount ]; // indexed by EGLMFBOAttachment
|
|
};
|
|
|
|
|
|
#endif
|