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/* $Id: cr_framebuffer.h $ */
/** @file
* VBox crOpenGL: FBO related state info
*/
/*
* Copyright (C) 2009-2019 Oracle Corporation
*
* This file is part of VirtualBox Open Source Edition (OSE), as
* available from http://www.virtualbox.org. This file is free software;
* you can redistribute it and/or modify it under the terms of the GNU
* General Public License (GPL) as published by the Free Software
* Foundation, in version 2 as it comes in the "COPYING" file of the
* VirtualBox OSE distribution. VirtualBox OSE is distributed in the
* hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
*/
#ifndef CR_STATE_FRAMEBUFFEROBJECT_H
#define CR_STATE_FRAMEBUFFEROBJECT_H
#include "cr_hash.h"
#include "state/cr_statetypes.h"
#include "state/cr_statefuncs.h"
#ifdef __cplusplus
extern "C" {
#endif
#define CR_MAX_COLOR_ATTACHMENTS 16
typedef struct {
GLenum type; /*one of GL_NONE GL_TEXTURE GL_RENDERBUFFER_EXT*/
GLuint name;
GLint level;
GLint face;
GLint zoffset;
} CRFBOAttachmentPoint;
typedef struct {
GLuint id, hwid;
CRFBOAttachmentPoint color[CR_MAX_COLOR_ATTACHMENTS];
CRFBOAttachmentPoint depth;
CRFBOAttachmentPoint stencil;
GLenum readbuffer;
/*@todo: we don't support drawbufferS yet, so it's a stub*/
GLenum drawbuffer[1];
#ifdef IN_GUEST
GLenum status;
#endif
/* bitfield representing the object usage. 1 means the object is used by the context with the given bitid */
CRbitvalue ctxUsage[CR_MAX_BITARRAY];
} CRFramebufferObject;
typedef struct {
GLuint id, hwid;
GLsizei width, height;
GLenum internalformat;
GLuint redBits, greenBits, blueBits, alphaBits, depthBits, stencilBits;
/* bitfield representing the object usage. 1 means the object is used by the context with the given bitid */
CRbitvalue ctxUsage[CR_MAX_BITARRAY];
} CRRenderbufferObject;
typedef struct {
CRFramebufferObject *readFB, *drawFB;
CRRenderbufferObject *renderbuffer;
} CRFramebufferObjectState;
DECLEXPORT(void) STATE_APIENTRY crStateFramebufferObjectInit(CRContext *ctx);
DECLEXPORT(void) STATE_APIENTRY crStateFramebufferObjectDestroy(CRContext *ctx);
DECLEXPORT(void) STATE_APIENTRY crStateFramebufferObjectSwitch(CRContext *from, CRContext *to);
DECLEXPORT(void) STATE_APIENTRY crStateFramebufferObjectDisableHW(CRContext *ctx, GLuint idDrawFBO, GLuint idReadFBO);
DECLEXPORT(void) STATE_APIENTRY crStateFramebufferObjectReenableHW(CRContext *fromCtx, CRContext *toCtx, GLuint idDrawFBO, GLuint idReadFBO);
DECLEXPORT(GLuint) STATE_APIENTRY crStateGetFramebufferHWID(GLuint id);
DECLEXPORT(GLuint) STATE_APIENTRY crStateGetRenderbufferHWID(GLuint id);
DECLEXPORT(void) STATE_APIENTRY crStateBindRenderbufferEXT(GLenum target, GLuint renderbuffer);
DECLEXPORT(void) STATE_APIENTRY crStateDeleteRenderbuffersEXT(GLsizei n, const GLuint *renderbuffers);
DECLEXPORT(void) STATE_APIENTRY crStateRenderbufferStorageEXT(GLenum target, GLenum internalformat, GLsizei width, GLsizei height);
DECLEXPORT(void) STATE_APIENTRY crStateGetRenderbufferParameterivEXT(GLenum target, GLenum pname, GLint *params);
DECLEXPORT(void) STATE_APIENTRY crStateBindFramebufferEXT(GLenum target, GLuint framebuffer);
DECLEXPORT(void) STATE_APIENTRY crStateDeleteFramebuffersEXT(GLsizei n, const GLuint *framebuffers);
DECLEXPORT(void) STATE_APIENTRY crStateFramebufferTexture1DEXT(GLenum target, GLenum attachment, GLenum textarget, GLuint texture, GLint level);
DECLEXPORT(void) STATE_APIENTRY crStateFramebufferTexture2DEXT(GLenum target, GLenum attachment, GLenum textarget, GLuint texture, GLint level);
DECLEXPORT(void) STATE_APIENTRY crStateFramebufferTexture3DEXT(GLenum target, GLenum attachment, GLenum textarget, GLuint texture, GLint level, GLint zoffset);
DECLEXPORT(void) STATE_APIENTRY crStateFramebufferRenderbufferEXT(GLenum target, GLenum attachment, GLenum renderbuffertarget, GLuint renderbuffer);
DECLEXPORT(void) STATE_APIENTRY crStateGetFramebufferAttachmentParameterivEXT(GLenum target, GLenum attachment, GLenum pname, GLint *params);
DECLEXPORT(void) STATE_APIENTRY crStateGenerateMipmapEXT(GLenum target);
DECLEXPORT(GLuint) STATE_APIENTRY crStateFBOHWIDtoID(GLuint hwid);
DECLEXPORT(GLuint) STATE_APIENTRY crStateRBOHWIDtoID(GLuint hwid);
DECLEXPORT(void) crStateRegFramebuffers(GLsizei n, GLuint *buffers);
DECLEXPORT(void) crStateRegRenderbuffers(GLsizei n, GLuint *buffers);
#ifdef IN_GUEST
DECLEXPORT(GLenum) STATE_APIENTRY crStateCheckFramebufferStatusEXT(GLenum target);
DECLEXPORT(GLenum) STATE_APIENTRY crStateSetFramebufferStatus(GLenum target, GLenum status);
#endif
#ifdef __cplusplus
}
#endif
#endif /* CR_STATE_FRAMEBUFFEROBJECT_H */
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