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Diffstat (limited to 'src/mesa/drivers/dri/dri_client/imports/glxclient.h')
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diff --git a/src/mesa/drivers/dri/dri_client/imports/glxclient.h b/src/mesa/drivers/dri/dri_client/imports/glxclient.h new file mode 100644 index 0000000000..317ea01116 --- /dev/null +++ b/src/mesa/drivers/dri/dri_client/imports/glxclient.h @@ -0,0 +1,1143 @@ +/* +** 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 1.15 2002/10/30 12:51:26 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 "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 2 + +#define __GLX_MAX_TEXTURE_UNITS 32 + +typedef struct __GLXcontextRec __GLXcontext; +typedef struct __GLXdisplayPrivateRec __GLXdisplayPrivate; +typedef struct _glapi_table __GLapi; + +/************************************************************************/ + +#ifdef GLX_DIRECT_RENDERING + +/** + * \name DRI interface structures + * + * The following structures define the interface between the GLX client + * side library and the DRI (direct rendering infrastructure). + */ +/*@{*/ +typedef struct __DRIdisplayRec __DRIdisplay; +typedef struct __DRIscreenRec __DRIscreen; +typedef struct __DRIcontextRec __DRIcontext; +typedef struct __DRIdrawableRec __DRIdrawable; +typedef struct __DRIdriverRec __DRIdriver; +typedef struct __DRIframebufferRec __DRIframebuffer; +typedef struct __DRIversionRec __DRIversion; +/*@}*/ + +extern __DRIscreen *__glXFindDRIScreen(Display *dpy, int scrn); + +/** + * Stored version of some component (i.e., server-side DRI module, kernel-side + * DRM, etc.). + * + * \todo There are several data structures that explicitly store a major + * version, minor version, and patch level. These structures should + * be modified to have a \c __DRIversionRec instead. + */ +struct __DRIversionRec { + int major; /**< Major version number. */ + int minor; /**< Minor version number. */ + int patch; /**< Patch-level. */ +}; + +/** + * Framebuffer information record. Used by libGL to communicate information + * about the framebuffer to the driver's \c __DRIdisplayRec::createNewScreen + * function. + * + * In XFree86, most of this information is derrived from data returned by + * calling \c XF86DRIGetDeviceInfo. + * + * \sa XF86DRIGetDeviceInfo __DRIdisplayRec::createNewScreen + * __driUtilCreateNewScreen CallCreateNewScreen + * + * \bug This structure could be better named. + */ +struct __DRIframebufferRec { + unsigned char *base; /**< Framebuffer base address in the CPU's + * address space. This value is calculated by + * calling \c drmMap on the framebuffer handle + * returned by \c XF86DRIGetDeviceInfo (or a + * similar function). + */ + int size; /**< Framebuffer size, in bytes. */ + int stride; /**< Number of bytes from one line to the next. */ + int width; /**< Pixel width of the framebuffer. */ + int height; /**< Pixel height of the framebuffer. */ + int dev_priv_size; /**< Size of the driver's dev-priv structure. */ + void *dev_priv; /**< Pointer to the driver's dev-priv structure. */ +}; + +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; +}; + +/** + * Screen dependent methods. This structure is initialized during the + * \c __DRIdisplayRec::createScreen call. + */ +struct __DRIscreenRec { + /** + * Method to destroy the private DRI screen data. + */ + void (*destroyScreen)(Display *dpy, int scrn, void *screenPrivate); + + /** + * Method to create the private DRI context data and initialize the + * context dependent methods. + * + * \sa __DRIscreenRec::createNewContext driCreateContext + * driCreateNewContext + * \deprecated This function has been replaced by + * __DRIscreenRec::createNewContext. New drivers will + * continue to export this method, but it will eventually + * (in the next XFree86 major relearse) go away. + */ + void *(*createContext)(Display *dpy, XVisualInfo *vis, void *sharedPrivate, + __DRIcontext *pctx); + + /** + * Method to create the private DRI drawable data and initialize the + * drawable dependent methods. + */ + void *(*createNewDrawable)(Display *dpy, const __GLcontextModes *modes, + GLXDrawable draw, __DRIdrawable *pdraw, + int renderType, const int *attrs); + + /** + * Method to return a pointer to the DRI drawable data. + */ + __DRIdrawable *(*getDrawable)(Display *dpy, GLXDrawable draw, + void *drawablePrivate); + + /** + * Opaque pointer to private per screen direct rendering data. \c NULL + * if direct rendering is not supported on this screen. Never + * dereferenced in libGL. + */ + void *private; + + /** + * Get the number of vertical refreshes since some point in time before + * this function was first called (i.e., system start up). + * + * \since Internal API version 20030317. + */ + int (*getMSC)( void *screenPrivate, int64_t *msc ); + + /** + * Opaque pointer that points back to the containing + * \c __GLXscreenConfigs. This data structure is shared with DRI drivers + * but \c __GLXscreenConfigs is not. However, they are needed by some GLX + * functions called by DRI drivers. + * + * \since Internal API version 20030813. + */ + void *screenConfigs; + + /** + * Functions associated with MESA_allocate_memory. + * + * \since Internal API version 20030815. + */ + /*@{*/ + void *(*allocateMemory)(Display *dpy, int scrn, GLsizei size, + GLfloat readfreq, GLfloat writefreq, + GLfloat priority); + + void (*freeMemory)(Display *dpy, int scrn, GLvoid *pointer); + + GLuint (*memoryOffset)(Display *dpy, int scrn, const GLvoid *pointer); + /*@}*/ + + /** + * Method to create the private DRI context data and initialize the + * context dependent methods. + * + * \since Internal API version 20031201. + */ + void * (*createNewContext)(Display *dpy, const __GLcontextModes *modes, + int render_type, + void *sharedPrivate, __DRIcontext *pctx); +}; + +/** + * Context dependent methods. This structure is initialized during the + * \c __DRIscreenRec::createContext call. + */ +struct __DRIcontextRec { + /** + * Method to destroy the private DRI context data. + */ + void (*destroyContext)(Display *dpy, int scrn, void *contextPrivate); + + /** + * Method to bind a DRI drawable to a DRI graphics context. + */ + Bool (*bindContext)(Display *dpy, int scrn, GLXDrawable draw, + GLXContext gc); + + /** + * Method to unbind a DRI drawable to a DRI graphics context. + */ + Bool (*unbindContext)(Display *dpy, int scrn, GLXDrawable draw, + GLXContext gc, int will_rebind); + + /** + * Opaque pointer to private per context direct rendering data. + * \c NULL if direct rendering is not supported on the display or + * screen used to create this context. Never dereferenced in libGL. + */ + void *private; + + /** + * Method to bind a DRI drawable to a DRI graphics context. + * + * \since Internal API version 20030606. + */ + Bool (*bindContext2)(Display *dpy, int scrn, GLXDrawable draw, + GLXDrawable read, GLXContext gc); + + /** + * Method to unbind a DRI drawable to a DRI graphics context. + * + * \since Internal API version 20030606. + */ + Bool (*unbindContext2)(Display *dpy, int scrn, GLXDrawable draw, + GLXDrawable read, GLXContext gc); +}; + +/** + * Drawable dependent methods. This structure is initialized during the + * \c __DRIscreenRec::createDrawable call. \c createDrawable is not called + * by libGL at this time. It's currently used via the dri_util.c utility code + * instead. + */ +struct __DRIdrawableRec { + /** + * Method to destroy the private DRI drawable data. + */ + void (*destroyDrawable)(Display *dpy, void *drawablePrivate); + + /** + * Method to swap the front and back buffers. + */ + void (*swapBuffers)(Display *dpy, void *drawablePrivate); + + /** + * Opaque pointer to private per drawable direct rendering data. + * \c NULL if direct rendering is not supported on the display or + * screen used to create this drawable. Never dereferenced in libGL. + */ + void *private; + + /** + * Get the number of completed swap buffers for this drawable. + * + * \since Internal API version 20030317. + */ + int (*getSBC)(Display *dpy, void *drawablePrivate, int64_t *sbc ); + + /** + * Wait for the SBC to be greater than or equal target_sbc. + * + * \since Internal API version 20030317. + */ + int (*waitForSBC)( Display * dpy, void *drawablePriv, + int64_t target_sbc, + int64_t * msc, int64_t * sbc ); + + /** + * Wait for the MSC to equal target_msc, or, if that has already passed, + * the next time (MSC % divisor) is equal to remainder. If divisor is + * zero, the function will return as soon as MSC is greater than or equal + * to target_msc. + * + * \since Internal API version 20030317. + */ + int (*waitForMSC)( Display * dpy, void *drawablePriv, + int64_t target_msc, int64_t divisor, int64_t remainder, + int64_t * msc, int64_t * sbc ); + + /** + * Like \c swapBuffers, but does NOT have an implicit \c glFlush. Once + * rendering is complete, waits until MSC is equal to target_msc, or + * if that has already passed, waits until (MSC % divisor) is equal + * to remainder. If divisor is zero, the swap will happen as soon as + * MSC is greater than or equal to target_msc. + * + * \since Internal API version 20030317. + */ + int64_t (*swapBuffersMSC)(Display *dpy, void *drawablePrivate, + int64_t target_msc, + int64_t divisor, int64_t remainder); + + /** + * Enable or disable frame usage tracking. + * + * \since Internal API version 20030317. + */ + int (*frameTracking)(Display *dpy, void *drawablePrivate, Bool enable); + + /** + * Retrieve frame usage information. + * + * \since Internal API version 20030317. + */ + int (*queryFrameTracking)(Display *dpy, void *drawablePrivate, + int64_t * sbc, int64_t * missedFrames, + float * lastMissedUsage, float * usage ); + + /** + * Used by drivers that implement the GLX_SGI_swap_control or + * GLX_MESA_swap_control extension. + * + * \since Internal API version 20030317. + */ + unsigned swap_interval; +}; + + +/* +** 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; + +#ifdef GLX_DIRECT_RENDERING + /** + * Pointer to the mode used to create this context. This field replaces + * the \c vid and \c fbconfigID fields. + * + * \since Internal API version 20031201. + */ + const __GLcontextModes * mode; +#endif /* GLX_DIRECT_RENDERING */ +}; + +#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. + */ + /*@{*/ + char *serverGLXvendor; + 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 *__glXInternalQueryServerString( Display *dpy, int opcode, + int screen, int name ); + +extern char *__glXstrdup(const char *str); + + +extern const char __glXGLClientVersion[]; +extern const char __glXGLClientExtensions[]; +extern char *__glXCombineExtensionStrings( const char *cext_string, + const char *sext_string ); + +/* Determine the internal API version */ +extern int __glXGetInternalVersion(void); + +/** + * Type of a pointer to \c __glXGetInternalVersion, as returned by + * \c glXGetProcAddress. + * + * \sa __glXGetInternalVersion, glXGetProcAddress + */ +typedef int (* PFNGLXGETINTERNALVERSIONPROC) ( void ); + +/** + * Type of a pointer to \c __glXWindowExists, as returned by + * \c glXGetProcAddress. + * + * \sa __glXWindowExists, glXGetProcAddress + */ +typedef Bool (* PFNGLXWINDOWEXISTSPROC) (Display *dpy, GLXDrawable draw); + +/* Get the unadjusted system time */ +extern int __glXGetUST( int64_t * ust ); + +/** + * Type of a pointer to \c __glXGetUST, as returned by \c glXGetProcAddress. + * + * \sa __glXGetUST, glXGetProcAddress + */ +typedef int (* PFNGLXGETUSTPROC) ( int64_t * ust ); + + +/** + * Type of pointer to \c __glXCreateContextModes, as returned by + * \c glXGetProcAddress. + * + * \sa _gl_context_modes_create, glXGetProcAddress + */ + +typedef __GLcontextModes * (* PFNGLXCREATECONTEXTMODES) ( unsigned count, + size_t minimum_bytes_per_struct ); + +#endif /* !__GLX_client_h__ */ |