cr_glstate.h revision 11f375aeb42298e3def991f90f66f69a93d958cc
/* Copyright (c) 2001, Stanford University
* All rights reserved.
*
* See the file LICENSE.txt for information on redistributing this software.
*/
#ifndef CR_GLSTATE_H
#define CR_GLSTATE_H
/* Forward declaration since some of the state/cr_*.h files need the CRContext type */
struct CRContext;
typedef struct CRContext CRContext;
#include "cr_version.h"
#include "state/cr_buffer.h"
#include "state/cr_bufferobject.h"
#include "state/cr_client.h"
#include "state/cr_current.h"
#include "state/cr_evaluators.h"
#include "state/cr_feedback.h"
#include "state/cr_fog.h"
#include "state/cr_hint.h"
#include "state/cr_lighting.h"
#include "state/cr_limits.h"
#include "state/cr_line.h"
#include "state/cr_lists.h"
#include "state/cr_multisample.h"
#include "state/cr_occlude.h"
#include "state/cr_pixel.h"
#include "state/cr_point.h"
#include "state/cr_polygon.h"
#include "state/cr_program.h"
#include "state/cr_regcombiner.h"
#include "state/cr_stencil.h"
#include "state/cr_texture.h"
#include "state/cr_transform.h"
#include "state/cr_viewport.h"
#include "state/cr_attrib.h"
#include "state/cr_framebuffer.h"
#include "state/cr_glsl.h"
#include "state/cr_statefuncs.h"
#include "state/cr_stateerror.h"
#include "spu_dispatch_table.h"
#include <iprt/cdefs.h>
#ifndef IN_GUEST
# include <VBox/vmm/ssm.h>
#endif
#define CR_MAX_EXTENTS 256
#ifdef __cplusplus
extern "C" {
#endif
/**
* Bit vectors describing GL state
*/
typedef struct {
CRAttribBits attrib;
CRBufferBits buffer;
#ifdef CR_ARB_vertex_buffer_object
CRBufferObjectBits bufferobject;
#endif
CRClientBits client;
CRCurrentBits current;
CREvaluatorBits eval;
CRFeedbackBits feedback;
CRFogBits fog;
CRHintBits hint;
CRLightingBits lighting;
CRLineBits line;
CRListsBits lists;
CRMultisampleBits multisample;
#if CR_ARB_occlusion_query
CROcclusionBits occlusion;
#endif
CRPixelBits pixel;
CRPointBits point;
CRPolygonBits polygon;
CRProgramBits program;
CRRegCombinerBits regcombiner;
CRSelectionBits selection;
CRStencilBits stencil;
CRTextureBits texture;
CRTransformBits transform;
CRViewportBits viewport;
} CRStateBits;
typedef void (*CRStateFlushFunc)( void *arg );
typedef struct _CRSharedState {
CRHashTable *textureTable; /* all texture objects */
CRHashTable *dlistTable; /* all display lists */
CRHashTable *buffersTable; /* vbo/pbo */
CRHashTable *fbTable; /* frame buffers */
CRHashTable *rbTable; /* render buffers */
GLint refCount;
GLint id; /*unique shared state id, it's not always matching some existing context id!*/
GLint saveCount;
/* Indicates that we have to resend data to GPU on first glMakeCurrent call with owning context */
GLboolean bTexResyncNeeded;
GLboolean bVBOResyncNeeded;
GLboolean bFBOResyncNeeded;
} CRSharedState;
/**
* Chromium version of the state variables in OpenGL
*/
struct CRContext {
int id;
#ifdef CHROMIUM_THREADSAFE
/* we keep reference counting of context's makeCurrent for different threads
* this is primarily needed to avoid having an invalid memory reference in the TLS
* when the context is assigned to more than one threads and then destroyed from
* one of those, i.e.
* 1. Thread1 -> MakeCurrent(ctx1);
* 2. Thread2 -> MakeCurrent(ctx1);
* 3. Thread1 -> Destroy(ctx1);
* => Thread2 still refers to destroyed ctx1
* */
/* number of threads that have context set as current */
volatile int cRefs;
#endif
CRbitvalue bitid[CR_MAX_BITARRAY];
CRbitvalue neg_bitid[CR_MAX_BITARRAY];
CRSharedState *shared;
GLenum renderMode;
GLenum error;
CRStateFlushFunc flush_func;
void *flush_arg;
CRAttribState attrib;
CRBufferState buffer;
#ifdef CR_ARB_vertex_buffer_object
CRBufferObjectState bufferobject;
#endif
CRClientState client;
CRCurrentState current;
CREvaluatorState eval;
CRExtensionState extensions;
CRFeedbackState feedback;
CRFogState fog;
CRHintState hint;
CRLightingState lighting;
CRLimitsState limits;
CRLineState line;
CRListsState lists;
CRMultisampleState multisample;
#if CR_ARB_occlusion_query
CROcclusionState occlusion;
#endif
CRPixelState pixel;
CRPointState point;
CRPolygonState polygon;
CRProgramState program;
CRRegCombinerState regcombiner;
CRSelectionState selection;
CRStencilState stencil;
CRTextureState texture;
CRTransformState transform;
CRViewportState viewport;
#ifdef CR_EXT_framebuffer_object
CRFramebufferObjectState framebufferobject;
#endif
#ifdef CR_OPENGL_VERSION_2_0
CRGLSLState glsl;
#endif
/** For buffering vertices for selection/feedback */
/*@{*/
GLuint vCount;
CRVertex vBuffer[4];
GLboolean lineReset;
GLboolean lineLoop;
/*@}*/
};
DECLEXPORT(void) crStateInit(void);
DECLEXPORT(void) crStateDestroy(void);
DECLEXPORT(void) crStateOnThreadAttachDetach(GLboolean attach);
DECLEXPORT(CRContext *) crStateCreateContext(const CRLimitsState *limits, GLint visBits, CRContext *share);
DECLEXPORT(CRContext *) crStateCreateContextEx(const CRLimitsState *limits, GLint visBits, CRContext *share, GLint presetID);
DECLEXPORT(void) crStateMakeCurrent(CRContext *ctx);
DECLEXPORT(void) crStateSetCurrent(CRContext *ctx);
DECLEXPORT(CRContext *) crStateGetCurrent(void);
DECLEXPORT(void) crStateDestroyContext(CRContext *ctx);
DECLEXPORT(void) crStateFlushFunc( CRStateFlushFunc ff );
DECLEXPORT(void) crStateFlushArg( void *arg );
DECLEXPORT(void) crStateDiffAPI( SPUDispatchTable *api );
DECLEXPORT(void) crStateUpdateColorBits( void );
DECLEXPORT(void) crStateSetCurrentPointers( CRContext *ctx, CRCurrentStatePointers *current );
DECLEXPORT(void) crStateResetCurrentPointers( CRCurrentStatePointers *current );
DECLEXPORT(void) crStateSetExtensionString( CRContext *ctx, const GLubyte *extensions );
DECLEXPORT(void) crStateDiffContext( CRContext *from, CRContext *to );
DECLEXPORT(void) crStateSwitchContext( CRContext *from, CRContext *to );
DECLEXPORT(void) crStateApplyFBImage(CRContext *to);
#ifndef IN_GUEST
DECLEXPORT(int32_t) crStateSaveContext(CRContext *pContext, PSSMHANDLE pSSM);
DECLEXPORT(int32_t) crStateLoadContext(CRContext *pContext, CRHashTable * pCtxTable, PSSMHANDLE pSSM);
DECLEXPORT(void) crStateFreeShared(CRSharedState *s);
#endif
/* XXX move these! */
DECLEXPORT(void) STATE_APIENTRY
crStateChromiumParameteriCR( GLenum target, GLint value );
DECLEXPORT(void) STATE_APIENTRY
crStateChromiumParameterfCR( GLenum target, GLfloat value );
DECLEXPORT(void) STATE_APIENTRY
crStateChromiumParametervCR( GLenum target, GLenum type, GLsizei count, const GLvoid *values );
DECLEXPORT(void) STATE_APIENTRY
crStateGetChromiumParametervCR( GLenum target, GLuint index, GLenum type,
GLsizei count, GLvoid *values );
DECLEXPORT(void) STATE_APIENTRY
crStateReadPixels( GLint x, GLint y, GLsizei width, GLsizei height,
GLenum format, GLenum type, GLvoid *pixels );
DECLEXPORT(void) STATE_APIENTRY crStateShareContext(GLboolean value);
DECLEXPORT(void) STATE_APIENTRY crStateSetSharedContext(CRContext *pCtx);
DECLEXPORT(GLboolean) STATE_APIENTRY crStateContextIsShared(CRContext *pCtx);
DECLEXPORT(void) STATE_APIENTRY crStateQueryHWState();
#ifdef __cplusplus
}
#endif
#endif /* CR_GLSTATE_H */