| /* |
| ** License Applicability. Except to the extent portions of this file are |
| ** made subject to an alternative license as permitted in the SGI Free |
| ** Software License B, Version 1.1 (the "License"), the contents of this |
| ** file are subject only to the provisions of the License. You may not use |
| ** this file except in compliance with the License. You may obtain a copy |
| ** of the License at Silicon Graphics, Inc., attn: Legal Services, 1600 |
| ** Amphitheatre Parkway, Mountain View, CA 94043-1351, or at: |
| ** |
| ** http://oss.sgi.com/projects/FreeB |
| ** |
| ** Note that, as provided in the License, the Software is distributed on an |
| ** "AS IS" basis, with ALL EXPRESS AND IMPLIED WARRANTIES AND CONDITIONS |
| ** DISCLAIMED, INCLUDING, WITHOUT LIMITATION, ANY IMPLIED WARRANTIES AND |
| ** CONDITIONS OF MERCHANTABILITY, SATISFACTORY QUALITY, FITNESS FOR A |
| ** PARTICULAR PURPOSE, AND NON-INFRINGEMENT. |
| ** |
| ** Original Code. The Original Code is: OpenGL Sample Implementation, |
| ** Version 1.2.1, released January 26, 2000, developed by Silicon Graphics, |
| ** Inc. The Original Code is Copyright (c) 1991-2000 Silicon Graphics, Inc. |
| ** Copyright in any portions created by third parties is as indicated |
| ** elsewhere herein. All Rights Reserved. |
| ** |
| ** Additional Notice Provisions: The application programming interfaces |
| ** established by SGI in conjunction with the Original Code are The |
| ** OpenGL(R) Graphics System: A Specification (Version 1.2.1), released |
| ** April 1, 1999; The OpenGL(R) Graphics System Utility Library (Version |
| ** 1.3), released November 4, 1998; and OpenGL(R) Graphics with the X |
| ** Window System(R) (Version 1.3), released October 19, 1998. This software |
| ** was created using the OpenGL(R) version 1.2.1 Sample Implementation |
| ** published by SGI, but has not been independently verified as being |
| ** compliant with the OpenGL(R) version 1.2.1 Specification. |
| */ |
| /* $XFree86: xc/lib/GL/glx/glxclient.h,v 1.21 2004/02/09 23:46:31 alanh Exp $ */ |
| |
| /** |
| * \file glxclient.h |
| * Direct rendering support added by Precision Insight, Inc. |
| * |
| * \author Kevin E. Martin <kevin@precisioninsight.com> |
| */ |
| |
| #ifndef _GLX_client_h_ |
| #define _GLX_client_h_ |
| #define NEED_REPLIES |
| #define NEED_EVENTS |
| #include <X11/Xproto.h> |
| #include <X11/Xlibint.h> |
| #define GLX_GLXEXT_PROTOTYPES |
| #include <GL/glx.h> |
| #include <GL/glxext.h> |
| #include <string.h> |
| #include <stdlib.h> |
| #include <stdio.h> |
| #include "GL/glxint.h" |
| #include "GL/glxproto.h" |
| #include "GL/internal/glcore.h" |
| #include "glapitable.h" |
| #ifdef NEED_GL_FUNCS_WRAPPED |
| #include "indirect.h" |
| #endif |
| #ifdef XTHREADS |
| #include "Xthreads.h" |
| #endif |
| #ifdef GLX_BUILT_IN_XMESA |
| #include "realglx.h" /* just silences prototype warnings */ |
| #endif |
| |
| #define GLX_MAJOR_VERSION 1 /* current version numbers */ |
| #define GLX_MINOR_VERSION 4 |
| |
| #define __GLX_MAX_TEXTURE_UNITS 32 |
| |
| typedef struct __GLXcontextRec __GLXcontext; |
| typedef struct __GLXdisplayPrivateRec __GLXdisplayPrivate; |
| typedef struct _glapi_table __GLapi; |
| |
| /************************************************************************/ |
| |
| #ifdef GLX_DIRECT_RENDERING |
| |
| #include <GL/internal/dri_interface.h> |
| |
| typedef void *(*CreateScreenFunc)(Display *dpy, int scrn, __DRIscreen *psc, |
| int numConfigs, __GLXvisualConfig *config); |
| |
| typedef void *(*CreateNewScreenFunc)(Display *dpy, int scrn, __DRIscreen *psc, |
| const __GLcontextModes * modes, const __DRIversion * ddx_version, |
| const __DRIversion * dri_version, const __DRIversion * drm_version, |
| const __DRIframebuffer * frame_buffer, void * pSAREA, |
| int fd, int internal_api_version, __GLcontextModes ** driver_modes); |
| |
| |
| /** |
| * Display dependent methods. This structure is initialized during the |
| * \c driCreateDisplay call. |
| */ |
| struct __DRIdisplayRec { |
| /** |
| * Method to destroy the private DRI display data. |
| */ |
| void (*destroyDisplay)(Display *dpy, void *displayPrivate); |
| |
| /** |
| * Methods to create the private DRI screen data and initialize the |
| * screen dependent methods. |
| * This is an array [indexed by screen number] of function pointers. |
| * |
| * \deprecated This array of function pointers has been replaced by |
| * \c __DRIdisplayRec::createNewScreen. |
| * \sa __DRIdisplayRec::createNewScreen |
| */ |
| CreateScreenFunc * createScreen; |
| |
| /** |
| * Opaque pointer to private per display direct rendering data. |
| * \c NULL if direct rendering is not supported on this display. |
| */ |
| struct __DRIdisplayPrivateRec *private; |
| |
| /** |
| * Array of pointers to methods to create and initialize the private DRI |
| * screen data. |
| * |
| * \sa __DRIdisplayRec::createScreen |
| */ |
| CreateNewScreenFunc * createNewScreen; |
| }; |
| |
| |
| /* |
| ** We keep a linked list of these structures, one per DRI device driver. |
| */ |
| struct __DRIdriverRec { |
| const char *name; |
| void *handle; |
| CreateScreenFunc createScreenFunc; |
| CreateNewScreenFunc createNewScreenFunc; |
| struct __DRIdriverRec *next; |
| }; |
| |
| /* |
| ** Function to create and DRI display data and initialize the display |
| ** dependent methods. |
| */ |
| extern void *driCreateDisplay(Display *dpy, __DRIdisplay *pdisp); |
| |
| extern __DRIdriver *driGetDriver(Display *dpy, int scrNum); |
| |
| extern void DRI_glXUseXFont( Font font, int first, int count, int listbase ); |
| |
| /* |
| ** Functions to obtain driver configuration information from a direct |
| ** rendering client application |
| */ |
| extern const char *glXGetScreenDriver (Display *dpy, int scrNum); |
| |
| extern const char *glXGetDriverConfig (const char *driverName); |
| |
| #endif |
| |
| /************************************************************************/ |
| |
| #define __GL_CLIENT_ATTRIB_STACK_DEPTH 16 |
| |
| typedef struct __GLXpixelStoreModeRec { |
| GLboolean swapEndian; |
| GLboolean lsbFirst; |
| GLuint rowLength; |
| GLuint imageHeight; |
| GLuint imageDepth; |
| GLuint skipRows; |
| GLuint skipPixels; |
| GLuint skipImages; |
| GLuint alignment; |
| } __GLXpixelStoreMode; |
| |
| /* The next 3 structures are deprecated. Client state is no longer tracked |
| * using them. They only remain to maintain the layout / structure offset of |
| * __GLXcontextRec. In XFree86 5.0 they will be removed altogether. |
| */ |
| |
| typedef struct __GLXvertexArrayPointerStateRecDEPRECATED { |
| GLboolean enable; |
| void (*proc)(const void *); |
| const GLubyte *ptr; |
| GLsizei skip; |
| GLint size; |
| GLenum type; |
| GLsizei stride; |
| } __GLXvertexArrayPointerStateDEPRECATED; |
| |
| typedef struct __GLXvertArrayStateRecDEPRECATED { |
| __GLXvertexArrayPointerStateDEPRECATED vertex; |
| __GLXvertexArrayPointerStateDEPRECATED normal; |
| __GLXvertexArrayPointerStateDEPRECATED color; |
| __GLXvertexArrayPointerStateDEPRECATED index; |
| __GLXvertexArrayPointerStateDEPRECATED texCoord[__GLX_MAX_TEXTURE_UNITS]; |
| __GLXvertexArrayPointerStateDEPRECATED edgeFlag; |
| GLint maxElementsVertices; |
| GLint maxElementsIndices; |
| GLint activeTexture; |
| } __GLXvertArrayStateDEPRECATED; |
| |
| typedef struct __GLXattributeRecDEPRECATED { |
| GLuint mask; |
| |
| /* |
| ** Pixel storage state. Most of the pixel store mode state is kept |
| ** here and used by the client code to manage the packing and |
| ** unpacking of data sent to/received from the server. |
| */ |
| __GLXpixelStoreMode storePack, storeUnpack; |
| |
| /* |
| ** Vertex Array storage state. The vertex array component |
| ** state is stored here and is used to manage the packing of |
| ** DrawArrays data sent to the server. |
| */ |
| __GLXvertArrayStateDEPRECATED vertArray; |
| } __GLXattributeDEPRECATED; |
| |
| typedef struct __GLXvertexArrayPointerStateRec { |
| void (*proc)(const void *); |
| void (*mtex_proc)(GLenum, const void *); |
| const GLubyte *ptr; |
| GLsizei skip; |
| GLint size; |
| GLenum type; |
| GLsizei stride; |
| } __GLXvertexArrayPointerState; |
| |
| /** |
| * Define which entries of \c __GLXvertArrayState::arrays match which |
| * vertex arrays in the client-state vector. These are only the one-of |
| * arrays. See the \c __GLXvertArrayState::arrays documentation for more |
| * details. |
| * |
| * \sa __GLXvertArrayState |
| */ |
| enum { |
| edgeFlag_ARRAY, /**< \c GL_EDGE_FLAG_ARRAY */ |
| index_ARRAY, /**< \c GL_INDEX_ARRAY */ |
| fogCoord_ARRAY, /**< \c GL_FOG_COORD_ARRAY */ |
| secondaryColor_ARRAY, /**< \c GL_SECONDARY_COLOR_ARRAY */ |
| color_ARRAY, /**< \c GL_COLOR_ARRAY */ |
| normal_ARRAY, /**< \c GL_NORMAL_ARRAY */ |
| |
| /** |
| * \c GL_VERTEX_ARRAY \b must be last! All of the code for emitting arrays |
| * and array elements is written based on the assumption that the vertex |
| * array is last. |
| */ |
| vertex_ARRAY, |
| |
| __GLX_MAX_ARRAYS /**< Place holder entry. */ |
| }; |
| |
| #define ENABLE_ARRAY(state,a) \ |
| do { (state)->vertArray.enables |= (1U << (a ## _ARRAY)); } while( 0 ) |
| #define DISABLE_ARRAY(state,a) \ |
| do { (state)->vertArray.enables &= ~(1U << (a ## _ARRAY)); } while( 0 ) |
| #define IS_ARRAY_ENABLED_BY_INDEX(state, i) \ |
| (((state)->vertArray.enables & (1U << (i))) != 0) |
| #define IS_ARRAY_ENABLED(state, a) \ |
| IS_ARRAY_ENABLED_BY_INDEX(state, a ## _ARRAY) |
| |
| #define ENABLE_TEXARRAY(state,a) \ |
| do { (state)->vertArray.texture_enables |= (1U << a); } while( 0 ) |
| #define DISABLE_TEXARRAY(state,a) \ |
| do { (state)->vertArray.texture_enables &= ~(1U << a); } while( 0 ) |
| #define IS_TEXARRAY_ENABLED(state, a) \ |
| (((state)->vertArray.texture_enables & (1U << a)) != 0) |
| |
| /** |
| * Client-side vertex array state. |
| */ |
| typedef struct __GLXvertArrayStateRec { |
| /** |
| * Which client-side arrays are enabled? These are the flag bits for |
| * all of the non-texture coordinate arrays. |
| */ |
| GLuint enables; |
| |
| /** |
| * Which of the texture coordinate arrays are enabled? |
| */ |
| GLuint texture_enables; |
| |
| /** |
| * State for "one-of" arrays. These are the arrays, such as |
| * GL_COLOR_ARRAY or GL_FOG_COORD_ARRAY for which there is only one |
| * array. There are also "many-of" arrays, such as |
| * GL_TEXTURE_COORD_ARRAY. |
| */ |
| __GLXvertexArrayPointerState arrays[__GLX_MAX_ARRAYS]; |
| |
| __GLXvertexArrayPointerState texCoord[__GLX_MAX_TEXTURE_UNITS]; |
| |
| GLint maxElementsVertices; |
| GLint maxElementsIndices; |
| GLint activeTexture; |
| } __GLXvertArrayState; |
| |
| typedef struct __GLXattributeRec { |
| GLuint mask; |
| |
| /* |
| ** Pixel storage state. Most of the pixel store mode state is kept |
| ** here and used by the client code to manage the packing and |
| ** unpacking of data sent to/received from the server. |
| */ |
| __GLXpixelStoreMode storePack, storeUnpack; |
| |
| /* |
| ** Vertex Array storage state. The vertex array component |
| ** state is stored here and is used to manage the packing of |
| ** DrawArrays data sent to the server. |
| */ |
| __GLXvertArrayState vertArray; |
| |
| /** |
| * Is EXT_vertex_array / GL 1.1 DrawArrays protocol specifically |
| * disabled? |
| */ |
| GLboolean NoDrawArraysProtocol; |
| } __GLXattribute; |
| |
| typedef struct __GLXattributeMachineRec { |
| __GLXattribute *stack[__GL_CLIENT_ATTRIB_STACK_DEPTH]; |
| __GLXattribute **stackPointer; |
| } __GLXattributeMachine; |
| |
| /** |
| * GLX state that needs to be kept on the client. One of these records |
| * exist for each context that has been made current by this client. |
| */ |
| struct __GLXcontextRec { |
| /** |
| * \name Drawing command buffer. |
| * |
| * Drawing commands are packed into this buffer before being sent as a |
| * single GLX protocol request. The buffer is sent when it overflows or |
| * is flushed by \c __glXFlushRenderBuffer. \c pc is the next location |
| * in the buffer to be filled. \c limit is described above in the buffer |
| * slop discussion. |
| * |
| * Commands that require large amounts of data to be transfered will |
| * also use this buffer to hold a header that describes the large |
| * command. |
| * |
| * These must be the first 6 fields since they are static initialized |
| * in the dummy context in glxext.c |
| */ |
| /*@{*/ |
| GLubyte *buf; |
| GLubyte *pc; |
| GLubyte *limit; |
| GLubyte *bufEnd; |
| GLint bufSize; |
| /*@}*/ |
| |
| /** |
| * The XID of this rendering context. When the context is created a |
| * new XID is allocated. This is set to None when the context is |
| * destroyed but is still current to some thread. In this case the |
| * context will be freed on next MakeCurrent. |
| */ |
| XID xid; |
| |
| /** |
| * The XID of the \c shareList context. |
| */ |
| XID share_xid; |
| |
| /** |
| * Visual id. |
| * |
| * \deprecated |
| * This filed has been largely been replaced by the \c mode field, but |
| * the work is not quite done. |
| */ |
| VisualID vid; |
| |
| /** |
| * Screen number. |
| */ |
| GLint screen; |
| |
| /** |
| * \c GL_TRUE if the context was created with ImportContext, which |
| * means the server-side context was created by another X client. |
| */ |
| GLboolean imported; |
| |
| /** |
| * The context tag returned by MakeCurrent when this context is made |
| * current. This tag is used to identify the context that a thread has |
| * current so that proper server context management can be done. It is |
| * used for all context specific commands (i.e., \c Render, \c RenderLarge, |
| * \c WaitX, \c WaitGL, \c UseXFont, and \c MakeCurrent (for the old |
| * context)). |
| */ |
| GLXContextTag currentContextTag; |
| |
| /** |
| * \name Rendering mode |
| * |
| * The rendering mode is kept on the client as well as the server. |
| * When \c glRenderMode is called, the buffer associated with the |
| * previous rendering mode (feedback or select) is filled. |
| */ |
| /*@{*/ |
| GLenum renderMode; |
| GLfloat *feedbackBuf; |
| GLuint *selectBuf; |
| /*@}*/ |
| |
| /** |
| * This is \c GL_TRUE if the pixel unpack modes are such that an image |
| * can be unpacked from the clients memory by just copying. It may |
| * still be true that the server will have to do some work. This |
| * just promises that a straight copy will fetch the correct bytes. |
| */ |
| GLboolean fastImageUnpack; |
| |
| /** |
| * Fill newImage with the unpacked form of \c oldImage getting it |
| * ready for transport to the server. |
| */ |
| void (*fillImage)(__GLXcontext*, GLint, GLint, GLint, GLint, GLenum, |
| GLenum, const GLvoid*, GLubyte*, GLubyte*); |
| |
| /** |
| * \name Client side attribs. |
| */ |
| /*@{*/ |
| __GLXattributeDEPRECATED stateDEPRECATED; |
| __GLXattributeMachine attributes; |
| /*@}*/ |
| |
| /** |
| * Client side error code. This is set when client side gl API |
| * routines need to set an error because of a bad enumerant or |
| * running out of memory, etc. |
| */ |
| GLenum error; |
| |
| /** |
| * Whether this context does direct rendering. |
| */ |
| Bool isDirect; |
| |
| /** |
| * \c dpy of current display for this context. Will be \c NULL if not |
| * current to any display, or if this is the "dummy context". |
| */ |
| Display *currentDpy; |
| |
| /** |
| * The current drawable for this context. Will be None if this |
| * context is not current to any drawable. currentReadable is below. |
| */ |
| GLXDrawable currentDrawable; |
| |
| /** |
| * \name GL Constant Strings |
| * |
| * Constant strings that describe the server implementation |
| * These pertain to GL attributes, not to be confused with |
| * GLX versioning attributes. |
| */ |
| /*@{*/ |
| GLubyte *vendor; |
| GLubyte *renderer; |
| GLubyte *version; |
| GLubyte *extensions; |
| /*@}*/ |
| |
| /** |
| * Record the dpy this context was created on for later freeing |
| */ |
| Display *createDpy; |
| |
| /** |
| * Maximum small render command size. This is the smaller of 64k and |
| * the size of the above buffer. |
| */ |
| GLint maxSmallRenderCommandSize; |
| |
| /** |
| * Major opcode for the extension. Copied here so a lookup isn't |
| * needed. |
| */ |
| GLint majorOpcode; |
| |
| #ifdef GLX_DIRECT_RENDERING |
| /** |
| * Per context direct rendering interface functions and data. |
| */ |
| __DRIcontext driContext; |
| #endif |
| |
| /** |
| * \c GLXFBConfigID used to create this context. May be \c None. This |
| * field has been replaced by the \c mode field. |
| * |
| * \since Internal API version 20030317. |
| * |
| * \deprecated |
| * This filed has been largely been replaced by the \c mode field, but |
| * the work is not quite done. |
| */ |
| GLXFBConfigID fbconfigID; |
| |
| /** |
| * The current read-drawable for this context. Will be None if this |
| * context is not current to any drawable. |
| * |
| * \since Internal API version 20030606. |
| */ |
| GLXDrawable currentReadable; |
| |
| /** |
| * Pointer to client-state data that is private to libGL. This is only |
| * used for indirect rendering contexts. |
| * |
| * No internal API version change was made for this change. Client-side |
| * drivers should NEVER use this data or even care that it exists. |
| */ |
| void * client_state_private; |
| |
| /** |
| * Stored value for \c glXQueryContext attribute \c GLX_RENDER_TYPE. |
| */ |
| int renderType; |
| |
| /** |
| * \name Raw server GL version |
| * |
| * True core GL version supported by the server. This is the raw value |
| * returned by the server, and it may not reflect what is actually |
| * supported (or reported) by the client-side library. |
| */ |
| /*@{*/ |
| int server_major; /**< Major version number. */ |
| int server_minor; /**< Minor version number. */ |
| /*@}*/ |
| }; |
| |
| #define __glXSetError(gc,code) \ |
| if (!(gc)->error) { \ |
| (gc)->error = code; \ |
| } |
| |
| extern void __glFreeAttributeState(__GLXcontext *); |
| |
| /************************************************************************/ |
| |
| /** |
| * The size of the largest drawing command known to the implementation |
| * that will use the GLXRender GLX command. In this case it is |
| * \c glPolygonStipple. |
| */ |
| #define __GLX_MAX_SMALL_RENDER_CMD_SIZE 156 |
| |
| /** |
| * To keep the implementation fast, the code uses a "limit" pointer |
| * to determine when the drawing command buffer is too full to hold |
| * another fixed size command. This constant defines the amount of |
| * space that must always be available in the drawing command buffer |
| * at all times for the implementation to work. It is important that |
| * the number be just large enough, but not so large as to reduce the |
| * efficacy of the buffer. The "+32" is just to keep the code working |
| * in case somebody counts wrong. |
| */ |
| #define __GLX_BUFFER_LIMIT_SIZE (__GLX_MAX_SMALL_RENDER_CMD_SIZE + 32) |
| |
| /** |
| * This implementation uses a smaller threshold for switching |
| * to the RenderLarge protocol than the protcol requires so that |
| * large copies don't occur. |
| */ |
| #define __GLX_RENDER_CMD_SIZE_LIMIT 4096 |
| |
| /** |
| * One of these records exists per screen of the display. It contains |
| * a pointer to the config data for that screen (if the screen supports GL). |
| */ |
| typedef struct __GLXscreenConfigsRec { |
| /** |
| * GLX visuals formated as \c __GLXvisualConfig structures. |
| */ |
| /*@{*/ |
| __GLXvisualConfig * old_configs; |
| int numOldConfigs; |
| /*@}*/ |
| |
| /** |
| * GLX extension string reported by the X-server. |
| */ |
| const char *serverGLXexts; |
| |
| /** |
| * GLX extension string to be reported to applications. This is the |
| * set of extensions that the application can actually use. |
| */ |
| char *effectiveGLXexts; |
| |
| #ifdef GLX_DIRECT_RENDERING |
| /** |
| * Per screen direct rendering interface functions and data. |
| */ |
| __DRIscreen driScreen; |
| #endif |
| |
| /** |
| * Linked list of configurations for this screen. This is intended to |
| * be a superset of \c old_configs. |
| */ |
| __GLcontextModes *configs; |
| /** |
| * Per-screen dynamic GLX extension tracking. The \c direct_support |
| * field only contains enough bits for 64 extensions. Should libGL |
| * ever need to track more than 64 GLX extensions, we can safely grow |
| * this field. The \c __GLXscreenConfigs structure is not used outside |
| * libGL. |
| */ |
| /*@{*/ |
| unsigned char direct_support[8]; |
| GLboolean ext_list_first_time; |
| /*@}*/ |
| |
| } __GLXscreenConfigs; |
| |
| /** |
| * Per display private data. One of these records exists for each display |
| * that is using the OpenGL (GLX) extension. |
| */ |
| struct __GLXdisplayPrivateRec { |
| /** |
| * Back pointer to the display |
| */ |
| Display *dpy; |
| |
| /** |
| * The \c majorOpcode is common to all connections to the same server. |
| * It is also copied into the context structure. |
| */ |
| int majorOpcode; |
| |
| /** |
| * \name Server Version |
| * |
| * Major and minor version returned by the server during initialization. |
| */ |
| /*@{*/ |
| int majorVersion, minorVersion; |
| /*@}*/ |
| |
| /** |
| * \name Storage for the servers GLX vendor and versions strings. |
| * |
| * These are the same for all screens on this display. These fields will |
| * be filled in on demand. |
| */ |
| /*@{*/ |
| const char *serverGLXvendor; |
| const char *serverGLXversion; |
| /*@}*/ |
| |
| /** |
| * Configurations of visuals for all screens on this display. |
| * Also, per screen data which now includes the server \c GLX_EXTENSION |
| * string. |
| */ |
| __GLXscreenConfigs *screenConfigs; |
| |
| #ifdef GLX_DIRECT_RENDERING |
| /** |
| * Per display direct rendering interface functions and data. |
| */ |
| __DRIdisplay driDisplay; |
| #endif |
| }; |
| |
| void __glXFreeContext(__GLXcontext*); |
| |
| extern GLubyte *__glXFlushRenderBuffer(__GLXcontext*, GLubyte*); |
| |
| extern void __glXSendLargeChunk(__GLXcontext *gc, GLint requestNumber, |
| GLint totalRequests, |
| const GLvoid * data, GLint dataLen); |
| |
| extern void __glXSendLargeCommand(__GLXcontext *, const GLvoid *, GLint, |
| const GLvoid *, GLint); |
| |
| /* Initialize the GLX extension for dpy */ |
| extern __GLXdisplayPrivate *__glXInitialize(Display*); |
| |
| /************************************************************************/ |
| |
| extern int __glXDebug; |
| |
| /* This is per-thread storage in an MT environment */ |
| #if defined(GLX_DIRECT_RENDERING) && defined(XTHREADS) |
| extern __GLXcontext *__glXGetCurrentContext(void); |
| extern void __glXSetCurrentContext(__GLXcontext *c); |
| #else |
| extern __GLXcontext *__glXcurrentContext; |
| #define __glXGetCurrentContext() __glXcurrentContext |
| #define __glXSetCurrentContext(gc) __glXcurrentContext = gc |
| #endif |
| |
| |
| /* |
| ** Global lock for all threads in this address space using the GLX |
| ** extension |
| */ |
| #if defined(GLX_DIRECT_RENDERING) && defined(XTHREADS) |
| extern xmutex_rec __glXmutex; |
| #define __glXLock() xmutex_lock(&__glXmutex) |
| #define __glXUnlock() xmutex_unlock(&__glXmutex) |
| #else |
| #define __glXLock() |
| #define __glXUnlock() |
| #endif |
| |
| /* |
| ** Setup for a command. Initialize the extension for dpy if necessary. |
| */ |
| extern CARD8 __glXSetupForCommand(Display *dpy); |
| |
| /************************************************************************/ |
| |
| /* |
| ** Data conversion and packing support. |
| */ |
| |
| /* Return the size, in bytes, of some pixel data */ |
| extern GLint __glImageSize(GLint, GLint, GLint, GLenum, GLenum); |
| |
| /* Return the number of elements per group of a specified format*/ |
| extern GLint __glElementsPerGroup(GLenum format, GLenum type); |
| |
| /* Return the number of bytes per element, based on the element type (other |
| ** than GL_BITMAP). |
| */ |
| extern GLint __glBytesPerElement(GLenum type); |
| |
| /* Return the k value for a given map target */ |
| extern GLint __glEvalComputeK(GLenum); |
| |
| /* |
| ** Fill the transport buffer with the data from the users buffer, |
| ** applying some of the pixel store modes (unpack modes) to the data |
| ** first. As a side effect of this call, the "modes" field is |
| ** updated to contain the modes needed by the server to decode the |
| ** sent data. |
| */ |
| extern void __glFillImage(__GLXcontext*, GLint, GLint, GLint, GLint, GLenum, |
| GLenum, const GLvoid*, GLubyte*, GLubyte*); |
| |
| /* Copy map data with a stride into a packed buffer */ |
| extern void __glFillMap1f(GLint, GLint, GLint, const GLfloat *, GLubyte *); |
| extern void __glFillMap1d(GLint, GLint, GLint, const GLdouble *, GLubyte *); |
| extern void __glFillMap2f(GLint, GLint, GLint, GLint, GLint, |
| const GLfloat *, GLfloat *); |
| extern void __glFillMap2d(GLint, GLint, GLint, GLint, GLint, |
| const GLdouble *, GLdouble *); |
| |
| /* |
| ** Empty an image out of the reply buffer into the clients memory applying |
| ** the pack modes to pack back into the clients requested format. |
| */ |
| extern void __glEmptyImage(__GLXcontext*, GLint, GLint, GLint, GLint, GLenum, |
| GLenum, const GLubyte *, GLvoid *); |
| |
| |
| /* |
| ** Allocate and Initialize Vertex Array client state |
| */ |
| extern void __glXInitVertexArrayState(__GLXcontext*); |
| |
| /* |
| ** Inform the Server of the major and minor numbers and of the client |
| ** libraries extension string. |
| */ |
| extern void __glXClientInfo ( Display *dpy, int opcode ); |
| |
| /************************************************************************/ |
| |
| /* |
| ** Declarations that should be in Xlib |
| */ |
| #ifdef __GL_USE_OUR_PROTOTYPES |
| extern void _XFlush(Display*); |
| extern Status _XReply(Display*, xReply*, int, Bool); |
| extern void _XRead(Display*, void*, long); |
| extern void _XSend(Display*, const void*, long); |
| #endif |
| |
| |
| /* |
| ** GLX_BUILT_IN_XMESA controls whether libGL has a built-in verions of |
| ** Mesa that can render to non-GLX displays. |
| */ |
| #ifdef GLX_BUILT_IN_XMESA |
| #define GLX_PREFIX(function) _real_##function |
| #else |
| #define GLX_PREFIX(function) function |
| #endif |
| |
| |
| extern void __glXInitializeVisualConfigFromTags( __GLcontextModes *config, |
| int count, const INT32 *bp, Bool tagged_only, Bool fbconfig_style_tags ); |
| |
| extern char * __glXGetStringFromServer( Display * dpy, int opcode, |
| CARD32 glxCode, CARD32 for_whom, CARD32 name ); |
| |
| extern char *__glXstrdup(const char *str); |
| |
| |
| extern const char __glXGLClientVersion[]; |
| extern const char __glXGLClientExtensions[]; |
| |
| /* Determine the internal API version */ |
| extern int __glXGetInternalVersion(void); |
| |
| /* Get the unadjusted system time */ |
| extern int __glXGetUST( int64_t * ust ); |
| |
| #endif /* !__GLX_client_h__ */ |