+++ /dev/null
-/*
- * Mesa 3-D graphics library
- * Version: 7.6
- *
- * Copyright (C) 1999-2007 Brian Paul All Rights Reserved.
- * Copyright (C) 2009 VMware, Inc. All Rights Reserved.
- *
- * Permission is hereby granted, free of charge, to any person obtaining a
- * copy of this software and associated documentation files (the "Software"),
- * to deal in the Software without restriction, including without limitation
- * the rights to use, copy, modify, merge, publish, distribute, sublicense,
- * and/or sell copies of the Software, and to permit persons to whom the
- * Software is furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included
- * in all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
- * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
- * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
- * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
- * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
- */
-
-
-/**
- * "Fake" GLX API implemented in terms of the XMesa*() functions.
- * XXX rename this file to glx_api.c
- */
-
-
-
-#define GLX_GLXEXT_PROTOTYPES
-#include "GL/glx.h"
-
-#include "xm_api.h"
-#include "context.h"
-#include "config.h"
-#include "macros.h"
-#include "imports.h"
-#include "version.h"
-#include "state_tracker/st_context.h"
-#include "state_tracker/st_public.h"
-
-
-/* This indicates the client-side GLX API and GLX encoder version. */
-#define CLIENT_MAJOR_VERSION 1
-#define CLIENT_MINOR_VERSION 4 /* but don't have 1.3's pbuffers, etc yet */
-
-/* This indicates the server-side GLX decoder version.
- * GLX 1.4 indicates OpenGL 1.3 support
- */
-#define SERVER_MAJOR_VERSION 1
-#define SERVER_MINOR_VERSION 4
-
-/* This is appended onto the glXGetClient/ServerString version strings. */
-#define MESA_GLX_VERSION "Mesa " MESA_VERSION_STRING
-
-/* Who implemented this GLX? */
-#define VENDOR "Brian Paul"
-
-#define EXTENSIONS \
- "GLX_MESA_copy_sub_buffer " \
- "GLX_MESA_pixmap_colormap " \
- "GLX_MESA_release_buffers " \
- "GLX_ARB_get_proc_address " \
- "GLX_EXT_texture_from_pixmap " \
- "GLX_EXT_visual_info " \
- "GLX_EXT_visual_rating " \
- /*"GLX_SGI_video_sync "*/ \
- "GLX_SGIX_fbconfig " \
- "GLX_SGIX_pbuffer "
-
-#define DEFAULT_DIRECT GL_TRUE
-
-
-
-/**
- * Minimal __GLXContextRec that mimics a "real" GLX context.
- */
-typedef struct __GLXcontextRec
-{
- Display *currentDpy;
- GLboolean isDirect;
- GLXDrawable currentDrawable;
- GLXDrawable currentReadable;
- XID xid;
-} __GLXcontext;
-
-
-/**
- * Our fake GLX context will contain a "real" GLX context and an XMesa context.
- *
- * Note that a pointer to a __GLXcontext is a pointer to a fake_glx_context,
- * and vice versa.
- *
- * XXX merge this struct with the one above.
- */
-struct fake_glx_context
-{
- __GLXcontext glxContext; /* this MUST be first! */
- XMesaContext xmesaContext;
-};
-
-
-
-static pipe_tsd ContextTSD;
-
-/** Set current context for calling thread */
-static void
-SetCurrentContext(GLXContext c)
-{
- pipe_tsd_set(&ContextTSD, c);
-}
-
-/** Get current context for calling thread */
-static GLXContext
-GetCurrentContext(void)
-{
- return pipe_tsd_get(&ContextTSD);
-}
-
-
-
-/**********************************************************************/
-/*** Debug helper code ***/
-/**********************************************************************/
-
-extern void _kw_ungrab_all( Display *dpy );
-void _kw_ungrab_all( Display *dpy )
-{
- XUngrabPointer( dpy, CurrentTime );
- XUngrabKeyboard( dpy, CurrentTime );
-}
-
-
-
-/**********************************************************************/
-/*** GLX Visual Code ***/
-/**********************************************************************/
-
-#define DONT_CARE -1
-
-
-static XMesaVisual *VisualTable = NULL;
-static int NumVisuals = 0;
-
-
-
-/* Macro to handle c_class vs class field name in XVisualInfo struct */
-#if defined(__cplusplus) || defined(c_plusplus)
-#define CLASS c_class
-#else
-#define CLASS class
-#endif
-
-
-
-/*
- * Test if the given XVisualInfo is usable for Mesa rendering.
- */
-static GLboolean
-is_usable_visual( XVisualInfo *vinfo )
-{
- switch (vinfo->CLASS) {
- case StaticGray:
- case GrayScale:
- /* Any StaticGray/GrayScale visual works in RGB or CI mode */
- return GL_TRUE;
- case StaticColor:
- case PseudoColor:
- /* Any StaticColor/PseudoColor visual of at least 4 bits */
- if (vinfo->depth>=4) {
- return GL_TRUE;
- }
- else {
- return GL_FALSE;
- }
- case TrueColor:
- case DirectColor:
- /* Any depth of TrueColor or DirectColor works in RGB mode */
- return GL_TRUE;
- default:
- /* This should never happen */
- return GL_FALSE;
- }
-}
-
-
-/*
- * Given an XVisualInfo and RGB, Double, and Depth buffer flags, save the
- * configuration in our list of GLX visuals.
- */
-static XMesaVisual
-save_glx_visual( Display *dpy, XVisualInfo *vinfo,
- GLboolean rgbFlag, GLboolean alphaFlag, GLboolean dbFlag,
- GLboolean stereoFlag,
- GLint depth_size, GLint stencil_size,
- GLint accumRedSize, GLint accumGreenSize,
- GLint accumBlueSize, GLint accumAlphaSize,
- GLint level, GLint numAuxBuffers )
-{
- GLboolean ximageFlag = GL_TRUE;
- XMesaVisual xmvis;
- GLint i;
- GLboolean comparePointers;
-
- if (dbFlag) {
- /* Check if the MESA_BACK_BUFFER env var is set */
- char *backbuffer = _mesa_getenv("MESA_BACK_BUFFER");
- if (backbuffer) {
- if (backbuffer[0]=='p' || backbuffer[0]=='P') {
- ximageFlag = GL_FALSE;
- }
- else if (backbuffer[0]=='x' || backbuffer[0]=='X') {
- ximageFlag = GL_TRUE;
- }
- else {
- _mesa_warning(NULL, "Mesa: invalid value for MESA_BACK_BUFFER environment variable, using an XImage.");
- }
- }
- }
-
- if (stereoFlag) {
- /* stereo not supported */
- return NULL;
- }
-
- if (stencil_size > 0 && depth_size > 0)
- depth_size = 24;
-
- /* Comparing IDs uses less memory but sometimes fails. */
- /* XXX revisit this after 3.0 is finished. */
- if (_mesa_getenv("MESA_GLX_VISUAL_HACK"))
- comparePointers = GL_TRUE;
- else
- comparePointers = GL_FALSE;
-
- /* Force the visual to have an alpha channel */
- if (rgbFlag && _mesa_getenv("MESA_GLX_FORCE_ALPHA"))
- alphaFlag = GL_TRUE;
-
- /* First check if a matching visual is already in the list */
- for (i=0; i<NumVisuals; i++) {
- XMesaVisual v = VisualTable[i];
- if (v->display == dpy
- && v->mesa_visual.level == level
- && v->mesa_visual.numAuxBuffers == numAuxBuffers
- && v->ximage_flag == ximageFlag
- && v->mesa_visual.rgbMode == rgbFlag
- && v->mesa_visual.doubleBufferMode == dbFlag
- && v->mesa_visual.stereoMode == stereoFlag
- && (v->mesa_visual.alphaBits > 0) == alphaFlag
- && (v->mesa_visual.depthBits >= depth_size || depth_size == 0)
- && (v->mesa_visual.stencilBits >= stencil_size || stencil_size == 0)
- && (v->mesa_visual.accumRedBits >= accumRedSize || accumRedSize == 0)
- && (v->mesa_visual.accumGreenBits >= accumGreenSize || accumGreenSize == 0)
- && (v->mesa_visual.accumBlueBits >= accumBlueSize || accumBlueSize == 0)
- && (v->mesa_visual.accumAlphaBits >= accumAlphaSize || accumAlphaSize == 0)) {
- /* now either compare XVisualInfo pointers or visual IDs */
- if ((!comparePointers && v->visinfo->visualid == vinfo->visualid)
- || (comparePointers && v->vishandle == vinfo)) {
- return v;
- }
- }
- }
-
- /* Create a new visual and add it to the list. */
-
- xmvis = XMesaCreateVisual( dpy, vinfo, rgbFlag, alphaFlag, dbFlag,
- stereoFlag, ximageFlag,
- depth_size, stencil_size,
- accumRedSize, accumBlueSize,
- accumBlueSize, accumAlphaSize, 0, level,
- GLX_NONE_EXT );
- if (xmvis) {
- /* Save a copy of the pointer now so we can find this visual again
- * if we need to search for it in find_glx_visual().
- */
- xmvis->vishandle = vinfo;
- /* Allocate more space for additional visual */
- VisualTable = (XMesaVisual *) _mesa_realloc( VisualTable,
- sizeof(XMesaVisual) * NumVisuals,
- sizeof(XMesaVisual) * (NumVisuals + 1));
- /* add xmvis to the list */
- VisualTable[NumVisuals] = xmvis;
- NumVisuals++;
- /* XXX minor hack, because XMesaCreateVisual doesn't support an
- * aux buffers parameter.
- */
- xmvis->mesa_visual.numAuxBuffers = numAuxBuffers;
- }
- return xmvis;
-}
-
-
-/**
- * Return the default number of bits for the Z buffer.
- * If defined, use the MESA_GLX_DEPTH_BITS env var value.
- * Otherwise, use the DEFAULT_SOFTWARE_DEPTH_BITS constant.
- * XXX probably do the same thing for stencil, accum, etc.
- */
-static GLint
-default_depth_bits(void)
-{
- int zBits;
- const char *zEnv = _mesa_getenv("MESA_GLX_DEPTH_BITS");
- if (zEnv)
- zBits = _mesa_atoi(zEnv);
- else
- zBits = DEFAULT_SOFTWARE_DEPTH_BITS;
- return zBits;
-}
-
-static GLint
-default_alpha_bits(void)
-{
- int aBits;
- const char *aEnv = _mesa_getenv("MESA_GLX_ALPHA_BITS");
- if (aEnv)
- aBits = _mesa_atoi(aEnv);
- else
- aBits = 0;
- return aBits;
-}
-
-static GLint
-default_accum_bits(void)
-{
- return 16;
-}
-
-
-
-/*
- * Create a GLX visual from a regular XVisualInfo.
- * This is called when Fake GLX is given an XVisualInfo which wasn't
- * returned by glXChooseVisual. Since this is the first time we're
- * considering this visual we'll take a guess at reasonable values
- * for depth buffer size, stencil size, accum size, etc.
- * This is the best we can do with a client-side emulation of GLX.
- */
-static XMesaVisual
-create_glx_visual( Display *dpy, XVisualInfo *visinfo )
-{
- GLint zBits = default_depth_bits();
- GLint accBits = default_accum_bits();
- GLboolean alphaFlag = default_alpha_bits() > 0;
-
- if (is_usable_visual( visinfo )) {
- /* Configure this visual as RGB, double-buffered, depth-buffered. */
- /* This is surely wrong for some people's needs but what else */
- /* can be done? They should use glXChooseVisual(). */
- return save_glx_visual( dpy, visinfo,
- GL_TRUE, /* rgb */
- alphaFlag, /* alpha */
- GL_TRUE, /* double */
- GL_FALSE, /* stereo */
- zBits,
- STENCIL_BITS,
- accBits, /* r */
- accBits, /* g */
- accBits, /* b */
- accBits, /* a */
- 0, /* level */
- 0 /* numAux */
- );
- }
- else {
- _mesa_warning(NULL, "Mesa: error in glXCreateContext: bad visual\n");
- return NULL;
- }
-}
-
-
-
-/*
- * Find the GLX visual associated with an XVisualInfo.
- */
-static XMesaVisual
-find_glx_visual( Display *dpy, XVisualInfo *vinfo )
-{
- int i;
-
- /* try to match visual id */
- for (i=0;i<NumVisuals;i++) {
- if (VisualTable[i]->display==dpy
- && VisualTable[i]->visinfo->visualid == vinfo->visualid) {
- return VisualTable[i];
- }
- }
-
- /* if that fails, try to match pointers */
- for (i=0;i<NumVisuals;i++) {
- if (VisualTable[i]->display==dpy && VisualTable[i]->vishandle==vinfo) {
- return VisualTable[i];
- }
- }
-
- return NULL;
-}
-
-
-/**
- * Try to get an X visual which matches the given arguments.
- */
-static XVisualInfo *
-get_visual( Display *dpy, int scr, unsigned int depth, int xclass )
-{
- XVisualInfo temp, *vis;
- long mask;
- int n;
- unsigned int default_depth;
- int default_class;
-
- mask = VisualScreenMask | VisualDepthMask | VisualClassMask;
- temp.screen = scr;
- temp.depth = depth;
- temp.CLASS = xclass;
-
- default_depth = DefaultDepth(dpy,scr);
- default_class = DefaultVisual(dpy,scr)->CLASS;
-
- if (depth==default_depth && xclass==default_class) {
- /* try to get root window's visual */
- temp.visualid = DefaultVisual(dpy,scr)->visualid;
- mask |= VisualIDMask;
- }
-
- vis = XGetVisualInfo( dpy, mask, &temp, &n );
-
- /* In case bits/pixel > 24, make sure color channels are still <=8 bits.
- * An SGI Infinite Reality system, for example, can have 30bpp pixels:
- * 10 bits per color channel. Mesa's limited to a max of 8 bits/channel.
- */
- if (vis && depth > 24 && (xclass==TrueColor || xclass==DirectColor)) {
- if (_mesa_bitcount((GLuint) vis->red_mask ) <= 8 &&
- _mesa_bitcount((GLuint) vis->green_mask) <= 8 &&
- _mesa_bitcount((GLuint) vis->blue_mask ) <= 8) {
- return vis;
- }
- else {
- XFree((void *) vis);
- return NULL;
- }
- }
-
- return vis;
-}
-
-
-/*
- * Retrieve the value of the given environment variable and find
- * the X visual which matches it.
- * Input: dpy - the display
- * screen - the screen number
- * varname - the name of the environment variable
- * Return: an XVisualInfo pointer to NULL if error.
- */
-static XVisualInfo *
-get_env_visual(Display *dpy, int scr, const char *varname)
-{
- char value[100], type[100];
- int depth, xclass = -1;
- XVisualInfo *vis;
-
- if (!_mesa_getenv( varname )) {
- return NULL;
- }
-
- _mesa_strncpy( value, _mesa_getenv(varname), 100 );
- value[99] = 0;
-
- sscanf( value, "%s %d", type, &depth );
-
- if (_mesa_strcmp(type,"TrueColor")==0) xclass = TrueColor;
- else if (_mesa_strcmp(type,"DirectColor")==0) xclass = DirectColor;
- else if (_mesa_strcmp(type,"PseudoColor")==0) xclass = PseudoColor;
- else if (_mesa_strcmp(type,"StaticColor")==0) xclass = StaticColor;
- else if (_mesa_strcmp(type,"GrayScale")==0) xclass = GrayScale;
- else if (_mesa_strcmp(type,"StaticGray")==0) xclass = StaticGray;
-
- if (xclass>-1 && depth>0) {
- vis = get_visual( dpy, scr, depth, xclass );
- if (vis) {
- return vis;
- }
- }
-
- _mesa_warning(NULL, "GLX unable to find visual class=%s, depth=%d.",
- type, depth);
-
- return NULL;
-}
-
-
-
-/*
- * Select an X visual which satisfies the RGBA flag and minimum depth.
- * Input: dpy,
- * screen - X display and screen number
- * min_depth - minimum visual depth
- * preferred_class - preferred GLX visual class or DONT_CARE
- * Return: pointer to an XVisualInfo or NULL.
- */
-static XVisualInfo *
-choose_x_visual( Display *dpy, int screen, int min_depth,
- int preferred_class )
-{
- XVisualInfo *vis;
- int xclass, visclass = 0;
- int depth;
-
- /* First see if the MESA_RGB_VISUAL env var is defined */
- vis = get_env_visual( dpy, screen, "MESA_RGB_VISUAL" );
- if (vis) {
- return vis;
- }
- /* Otherwise, search for a suitable visual */
- if (preferred_class==DONT_CARE) {
- for (xclass=0;xclass<6;xclass++) {
- switch (xclass) {
- case 0: visclass = TrueColor; break;
- case 1: visclass = DirectColor; break;
- case 2: visclass = PseudoColor; break;
- case 3: visclass = StaticColor; break;
- case 4: visclass = GrayScale; break;
- case 5: visclass = StaticGray; break;
- }
- if (min_depth==0) {
- /* start with shallowest */
- for (depth=0;depth<=32;depth++) {
- if (visclass==TrueColor && depth==8) {
- /* Special case: try to get 8-bit PseudoColor before */
- /* 8-bit TrueColor */
- vis = get_visual( dpy, screen, 8, PseudoColor );
- if (vis) {
- return vis;
- }
- }
- vis = get_visual( dpy, screen, depth, visclass );
- if (vis) {
- return vis;
- }
- }
- }
- else {
- /* start with deepest */
- for (depth=32;depth>=min_depth;depth--) {
- if (visclass==TrueColor && depth==8) {
- /* Special case: try to get 8-bit PseudoColor before */
- /* 8-bit TrueColor */
- vis = get_visual( dpy, screen, 8, PseudoColor );
- if (vis) {
- return vis;
- }
- }
- vis = get_visual( dpy, screen, depth, visclass );
- if (vis) {
- return vis;
- }
- }
- }
- }
- }
- else {
- /* search for a specific visual class */
- switch (preferred_class) {
- case GLX_TRUE_COLOR_EXT: visclass = TrueColor; break;
- case GLX_DIRECT_COLOR_EXT: visclass = DirectColor; break;
- case GLX_PSEUDO_COLOR_EXT: visclass = PseudoColor; break;
- case GLX_STATIC_COLOR_EXT: visclass = StaticColor; break;
- case GLX_GRAY_SCALE_EXT: visclass = GrayScale; break;
- case GLX_STATIC_GRAY_EXT: visclass = StaticGray; break;
- default: return NULL;
- }
- if (min_depth==0) {
- /* start with shallowest */
- for (depth=0;depth<=32;depth++) {
- vis = get_visual( dpy, screen, depth, visclass );
- if (vis) {
- return vis;
- }
- }
- }
- else {
- /* start with deepest */
- for (depth=32;depth>=min_depth;depth--) {
- vis = get_visual( dpy, screen, depth, visclass );
- if (vis) {
- return vis;
- }
- }
- }
- }
-
- /* didn't find a visual */
- return NULL;
-}
-
-
-
-
-/**********************************************************************/
-/*** Display-related functions ***/
-/**********************************************************************/
-
-
-/**
- * Free all XMesaVisuals which are associated with the given display.
- */
-static void
-destroy_visuals_on_display(Display *dpy)
-{
- int i;
- for (i = 0; i < NumVisuals; i++) {
- if (VisualTable[i]->display == dpy) {
- /* remove this visual */
- int j;
- free(VisualTable[i]);
- for (j = i; j < NumVisuals - 1; j++)
- VisualTable[j] = VisualTable[j + 1];
- NumVisuals--;
- }
- }
-}
-
-
-/**
- * Called from XCloseDisplay() to let us free our display-related data.
- */
-static int
-close_display_callback(Display *dpy, XExtCodes *codes)
-{
- destroy_visuals_on_display(dpy);
- xmesa_destroy_buffers_on_display(dpy);
- return 0;
-}
-
-
-/**
- * Look for the named extension on given display and return a pointer
- * to the _XExtension data, or NULL if extension not found.
- */
-static _XExtension *
-lookup_extension(Display *dpy, const char *extName)
-{
- _XExtension *ext;
- for (ext = dpy->ext_procs; ext; ext = ext->next) {
- if (ext->name && strcmp(ext->name, extName) == 0) {
- return ext;
- }
- }
- return NULL;
-}
-
-
-/**
- * Whenever we're given a new Display pointer, call this function to
- * register our close_display_callback function.
- */
-static void
-register_with_display(Display *dpy)
-{
- const char *extName = "MesaGLX";
- _XExtension *ext;
-
- ext = lookup_extension(dpy, extName);
- if (!ext) {
- XExtCodes *c = XAddExtension(dpy);
- ext = dpy->ext_procs; /* new extension is at head of list */
- assert(c->extension == ext->codes.extension);
- ext->name = _mesa_strdup(extName);
- ext->close_display = close_display_callback;
- }
-}
-
-
-/**********************************************************************/
-/*** Begin Fake GLX API Functions ***/
-/**********************************************************************/
-
-
-/**
- * Helper used by glXChooseVisual and glXChooseFBConfig.
- * The fbConfig parameter must be GL_FALSE for the former and GL_TRUE for
- * the later.
- * In either case, the attribute list is terminated with the value 'None'.
- */
-static XMesaVisual
-choose_visual( Display *dpy, int screen, const int *list, GLboolean fbConfig )
-{
- const GLboolean rgbModeDefault = fbConfig;
- const int *parselist;
- XVisualInfo *vis;
- int min_ci = 0;
- int min_red=0, min_green=0, min_blue=0;
- GLboolean rgb_flag = rgbModeDefault;
- GLboolean alpha_flag = GL_FALSE;
- GLboolean double_flag = GL_FALSE;
- GLboolean stereo_flag = GL_FALSE;
- GLint depth_size = 0;
- GLint stencil_size = 0;
- GLint accumRedSize = 0;
- GLint accumGreenSize = 0;
- GLint accumBlueSize = 0;
- GLint accumAlphaSize = 0;
- int level = 0;
- int visual_type = DONT_CARE;
- int trans_type = DONT_CARE;
- int trans_value = DONT_CARE;
- GLint caveat = DONT_CARE;
- XMesaVisual xmvis = NULL;
- int desiredVisualID = -1;
- int numAux = 0;
-
- parselist = list;
-
- while (*parselist) {
-
- switch (*parselist) {
- case GLX_USE_GL:
- if (fbConfig) {
- /* invalid token */
- return NULL;
- }
- else {
- /* skip */
- parselist++;
- }
- break;
- case GLX_BUFFER_SIZE:
- parselist++;
- min_ci = *parselist++;
- break;
- case GLX_LEVEL:
- parselist++;
- level = *parselist++;
- break;
- case GLX_RGBA:
- if (fbConfig) {
- /* invalid token */
- return NULL;
- }
- else {
- rgb_flag = GL_TRUE;
- parselist++;
- }
- break;
- case GLX_DOUBLEBUFFER:
- parselist++;
- if (fbConfig) {
- double_flag = *parselist++;
- }
- else {
- double_flag = GL_TRUE;
- }
- break;
- case GLX_STEREO:
- parselist++;
- if (fbConfig) {
- stereo_flag = *parselist++;
- }
- else {
- stereo_flag = GL_TRUE;
- }
- break;
- case GLX_AUX_BUFFERS:
- parselist++;
- numAux = *parselist++;
- if (numAux > MAX_AUX_BUFFERS)
- return NULL;
- break;
- case GLX_RED_SIZE:
- parselist++;
- min_red = *parselist++;
- break;
- case GLX_GREEN_SIZE:
- parselist++;
- min_green = *parselist++;
- break;
- case GLX_BLUE_SIZE:
- parselist++;
- min_blue = *parselist++;
- break;
- case GLX_ALPHA_SIZE:
- parselist++;
- {
- GLint size = *parselist++;
- alpha_flag = size ? GL_TRUE : GL_FALSE;
- }
- break;
- case GLX_DEPTH_SIZE:
- parselist++;
- depth_size = *parselist++;
- break;
- case GLX_STENCIL_SIZE:
- parselist++;
- stencil_size = *parselist++;
- break;
- case GLX_ACCUM_RED_SIZE:
- parselist++;
- {
- GLint size = *parselist++;
- accumRedSize = MAX2( accumRedSize, size );
- }
- break;
- case GLX_ACCUM_GREEN_SIZE:
- parselist++;
- {
- GLint size = *parselist++;
- accumGreenSize = MAX2( accumGreenSize, size );
- }
- break;
- case GLX_ACCUM_BLUE_SIZE:
- parselist++;
- {
- GLint size = *parselist++;
- accumBlueSize = MAX2( accumBlueSize, size );
- }
- break;
- case GLX_ACCUM_ALPHA_SIZE:
- parselist++;
- {
- GLint size = *parselist++;
- accumAlphaSize = MAX2( accumAlphaSize, size );
- }
- break;
-
- /*
- * GLX_EXT_visual_info extension
- */
- case GLX_X_VISUAL_TYPE_EXT:
- parselist++;
- visual_type = *parselist++;
- break;
- case GLX_TRANSPARENT_TYPE_EXT:
- parselist++;
- trans_type = *parselist++;
- break;
- case GLX_TRANSPARENT_INDEX_VALUE_EXT:
- parselist++;
- trans_value = *parselist++;
- break;
- case GLX_TRANSPARENT_RED_VALUE_EXT:
- case GLX_TRANSPARENT_GREEN_VALUE_EXT:
- case GLX_TRANSPARENT_BLUE_VALUE_EXT:
- case GLX_TRANSPARENT_ALPHA_VALUE_EXT:
- /* ignore */
- parselist++;
- parselist++;
- break;
-
- /*
- * GLX_EXT_visual_info extension
- */
- case GLX_VISUAL_CAVEAT_EXT:
- parselist++;
- caveat = *parselist++; /* ignored for now */
- break;
-
- /*
- * GLX_ARB_multisample
- */
- case GLX_SAMPLE_BUFFERS_ARB:
- /* ms not supported */
- return NULL;
- case GLX_SAMPLES_ARB:
- /* ms not supported */
- return NULL;
-
- /*
- * FBConfig attribs.
- */
- case GLX_RENDER_TYPE:
- if (!fbConfig)
- return NULL;
- parselist++;
- if (*parselist == GLX_RGBA_BIT) {
- rgb_flag = GL_TRUE;
- }
- else if (*parselist == GLX_COLOR_INDEX_BIT) {
- rgb_flag = GL_FALSE;
- }
- else if (*parselist == 0) {
- rgb_flag = GL_TRUE;
- }
- parselist++;
- break;
- case GLX_DRAWABLE_TYPE:
- if (!fbConfig)
- return NULL;
- parselist++;
- if (*parselist & ~(GLX_WINDOW_BIT | GLX_PIXMAP_BIT | GLX_PBUFFER_BIT)) {
- return NULL; /* bad bit */
- }
- parselist++;
- break;
- case GLX_FBCONFIG_ID:
- if (!fbConfig)
- return NULL;
- parselist++;
- desiredVisualID = *parselist++;
- break;
- case GLX_X_RENDERABLE:
- if (!fbConfig)
- return NULL;
- parselist += 2;
- /* ignore */
- break;
-
-#ifdef GLX_EXT_texture_from_pixmap
- case GLX_BIND_TO_TEXTURE_RGB_EXT:
- parselist++; /*skip*/
- break;
- case GLX_BIND_TO_TEXTURE_RGBA_EXT:
- parselist++; /*skip*/
- break;
- case GLX_BIND_TO_MIPMAP_TEXTURE_EXT:
- parselist++; /*skip*/
- break;
- case GLX_BIND_TO_TEXTURE_TARGETS_EXT:
- parselist++;
- if (*parselist & ~(GLX_TEXTURE_1D_BIT_EXT |
- GLX_TEXTURE_2D_BIT_EXT |
- GLX_TEXTURE_RECTANGLE_BIT_EXT)) {
- /* invalid bit */
- return NULL;
- }
- break;
- case GLX_Y_INVERTED_EXT:
- parselist++; /*skip*/
- break;
-#endif
-
- case None:
- /* end of list */
- break;
-
- default:
- /* undefined attribute */
- _mesa_warning(NULL, "unexpected attrib 0x%x in choose_visual()",
- *parselist);
- return NULL;
- }
- }
-
- (void) caveat;
-
-
- /*
- * Since we're only simulating the GLX extension this function will never
- * find any real GL visuals. Instead, all we can do is try to find an RGB
- * or CI visual of appropriate depth. Other requested attributes such as
- * double buffering, depth buffer, etc. will be associated with the X
- * visual and stored in the VisualTable[].
- */
- if (desiredVisualID != -1) {
- /* try to get a specific visual, by visualID */
- XVisualInfo temp;
- int n;
- temp.visualid = desiredVisualID;
- temp.screen = screen;
- vis = XGetVisualInfo(dpy, VisualIDMask | VisualScreenMask, &temp, &n);
- if (vis) {
- /* give the visual some useful GLX attributes */
- double_flag = GL_TRUE;
- rgb_flag = GL_TRUE;
- depth_size = default_depth_bits();
- stencil_size = STENCIL_BITS;
- /* XXX accum??? */
- }
- }
- else if (level==0) {
- /* normal color planes */
- /* Get an RGB visual */
- int min_rgb = min_red + min_green + min_blue;
- if (min_rgb>1 && min_rgb<8) {
- /* a special case to be sure we can get a monochrome visual */
- min_rgb = 1;
- }
- vis = choose_x_visual( dpy, screen, min_rgb, visual_type );
- }
- else {
- _mesa_warning(NULL, "overlay not supported");
- return NULL;
- }
-
- if (vis) {
- /* Note: we're not exactly obeying the glXChooseVisual rules here.
- * When GLX_DEPTH_SIZE = 1 is specified we're supposed to choose the
- * largest depth buffer size, which is 32bits/value. Instead, we
- * return 16 to maintain performance with earlier versions of Mesa.
- */
- if (stencil_size > 0)
- depth_size = 24; /* if Z and stencil, always use 24+8 format */
- else if (depth_size > 24)
- depth_size = 32;
- else if (depth_size > 16)
- depth_size = 24;
- else if (depth_size > 0) {
- depth_size = default_depth_bits();
- }
-
- if (!alpha_flag) {
- alpha_flag = default_alpha_bits() > 0;
- }
-
- /* we only support one size of stencil and accum buffers. */
- if (stencil_size > 0)
- stencil_size = STENCIL_BITS;
-
- if (accumRedSize > 0 ||
- accumGreenSize > 0 ||
- accumBlueSize > 0 ||
- accumAlphaSize > 0) {
-
- accumRedSize =
- accumGreenSize =
- accumBlueSize = default_accum_bits();
-
- accumAlphaSize = alpha_flag ? accumRedSize : 0;
- }
-
- xmvis = save_glx_visual( dpy, vis, rgb_flag, alpha_flag, double_flag,
- stereo_flag, depth_size, stencil_size,
- accumRedSize, accumGreenSize,
- accumBlueSize, accumAlphaSize, level, numAux );
- }
-
- return xmvis;
-}
-
-
-XVisualInfo *
-glXChooseVisual( Display *dpy, int screen, int *list )
-{
- XMesaVisual xmvis;
-
- /* register ourselves as an extension on this display */
- register_with_display(dpy);
-
- xmvis = choose_visual(dpy, screen, list, GL_FALSE);
- if (xmvis) {
- /* create a new vishandle - the cached one may be stale */
- xmvis->vishandle = (XVisualInfo *) _mesa_malloc(sizeof(XVisualInfo));
- if (xmvis->vishandle) {
- _mesa_memcpy(xmvis->vishandle, xmvis->visinfo, sizeof(XVisualInfo));
- }
- return xmvis->vishandle;
- }
- else
- return NULL;
-}
-
-
-GLXContext
-glXCreateContext( Display *dpy, XVisualInfo *visinfo,
- GLXContext share_list, Bool direct )
-{
- XMesaVisual xmvis;
- struct fake_glx_context *glxCtx;
- struct fake_glx_context *shareCtx = (struct fake_glx_context *) share_list;
-
- if (!dpy || !visinfo)
- return 0;
-
- glxCtx = CALLOC_STRUCT(fake_glx_context);
- if (!glxCtx)
- return 0;
-
- /* deallocate unused windows/buffers */
-#if 0
- XMesaGarbageCollect();
-#endif
-
- xmvis = find_glx_visual( dpy, visinfo );
- if (!xmvis) {
- /* This visual wasn't found with glXChooseVisual() */
- xmvis = create_glx_visual( dpy, visinfo );
- if (!xmvis) {
- /* unusable visual */
- _mesa_free(glxCtx);
- return NULL;
- }
- }
-
- glxCtx->xmesaContext = XMesaCreateContext(xmvis,
- shareCtx ? shareCtx->xmesaContext : NULL);
- if (!glxCtx->xmesaContext) {
- _mesa_free(glxCtx);
- return NULL;
- }
-
- glxCtx->glxContext.isDirect = DEFAULT_DIRECT;
- glxCtx->glxContext.currentDpy = dpy;
- glxCtx->glxContext.xid = (XID) glxCtx; /* self pointer */
-
- assert((void *) glxCtx == (void *) &(glxCtx->glxContext));
-
- return (GLXContext) glxCtx;
-}
-
-
-/* XXX these may have to be removed due to thread-safety issues. */
-static GLXContext MakeCurrent_PrevContext = 0;
-static GLXDrawable MakeCurrent_PrevDrawable = 0;
-static GLXDrawable MakeCurrent_PrevReadable = 0;
-static XMesaBuffer MakeCurrent_PrevDrawBuffer = 0;
-static XMesaBuffer MakeCurrent_PrevReadBuffer = 0;
-
-
-/* GLX 1.3 and later */
-Bool
-glXMakeContextCurrent( Display *dpy, GLXDrawable draw,
- GLXDrawable read, GLXContext ctx )
-{
- struct fake_glx_context *glxCtx = (struct fake_glx_context *) ctx;
- static boolean firsttime = 1, no_rast = 0;
-
- if (firsttime) {
- no_rast = getenv("SP_NO_RAST") != NULL;
- firsttime = 0;
- }
-
- if (ctx && draw && read) {
- XMesaBuffer drawBuffer, readBuffer;
- XMesaContext xmctx = glxCtx->xmesaContext;
-
- /* Find the XMesaBuffer which corresponds to the GLXDrawable 'draw' */
- if (ctx == MakeCurrent_PrevContext
- && draw == MakeCurrent_PrevDrawable) {
- drawBuffer = MakeCurrent_PrevDrawBuffer;
- }
- else {
- drawBuffer = XMesaFindBuffer( dpy, draw );
- }
- if (!drawBuffer) {
- /* drawable must be a new window! */
- drawBuffer = XMesaCreateWindowBuffer( xmctx->xm_visual, draw );
- if (!drawBuffer) {
- /* Out of memory, or context/drawable depth mismatch */
- return False;
- }
- }
-
- /* Find the XMesaBuffer which corresponds to the GLXDrawable 'read' */
- if (ctx == MakeCurrent_PrevContext
- && read == MakeCurrent_PrevReadable) {
- readBuffer = MakeCurrent_PrevReadBuffer;
- }
- else {
- readBuffer = XMesaFindBuffer( dpy, read );
- }
- if (!readBuffer) {
- /* drawable must be a new window! */
- readBuffer = XMesaCreateWindowBuffer( xmctx->xm_visual, read );
- if (!readBuffer) {
- /* Out of memory, or context/drawable depth mismatch */
- return False;
- }
- }
-
- if (no_rast &&
- MakeCurrent_PrevContext == ctx &&
- MakeCurrent_PrevDrawable == draw &&
- MakeCurrent_PrevReadable == read &&
- MakeCurrent_PrevDrawBuffer == drawBuffer &&
- MakeCurrent_PrevReadBuffer == readBuffer)
- return True;
-
- MakeCurrent_PrevContext = ctx;
- MakeCurrent_PrevDrawable = draw;
- MakeCurrent_PrevReadable = read;
- MakeCurrent_PrevDrawBuffer = drawBuffer;
- MakeCurrent_PrevReadBuffer = readBuffer;
-
- /* Now make current! */
- if (XMesaMakeCurrent2(xmctx, drawBuffer, readBuffer)) {
- ((__GLXcontext *) ctx)->currentDpy = dpy;
- ((__GLXcontext *) ctx)->currentDrawable = draw;
- ((__GLXcontext *) ctx)->currentReadable = read;
- SetCurrentContext(ctx);
- return True;
- }
- else {
- return False;
- }
- }
- else if (!ctx && !draw && !read) {
- /* release current context w/out assigning new one. */
- XMesaMakeCurrent2( NULL, NULL, NULL );
- MakeCurrent_PrevContext = 0;
- MakeCurrent_PrevDrawable = 0;
- MakeCurrent_PrevReadable = 0;
- MakeCurrent_PrevDrawBuffer = 0;
- MakeCurrent_PrevReadBuffer = 0;
- SetCurrentContext(NULL);
- return True;
- }
- else {
- /* The args must either all be non-zero or all zero.
- * This is an error.
- */
- return False;
- }
-}
-
-
-Bool
-glXMakeCurrent( Display *dpy, GLXDrawable drawable, GLXContext ctx )
-{
- return glXMakeContextCurrent( dpy, drawable, drawable, ctx );
-}
-
-
-GLXContext
-glXGetCurrentContext(void)
-{
- return GetCurrentContext();
-}
-
-
-Display *
-glXGetCurrentDisplay(void)
-{
- struct fake_glx_context *glxCtx =
- (struct fake_glx_context *) glXGetCurrentContext();
-
- return glxCtx ? glxCtx->glxContext.currentDpy : NULL;
-}
-
-
-Display *
-glXGetCurrentDisplayEXT(void)
-{
- return glXGetCurrentDisplay();
-}
-
-
-GLXDrawable
-glXGetCurrentDrawable(void)
-{
- __GLXcontext *gc = (__GLXcontext *) glXGetCurrentContext();
- return gc ? gc->currentDrawable : 0;
-}
-
-
-GLXDrawable
-glXGetCurrentReadDrawable(void)
-{
- __GLXcontext *gc = (__GLXcontext *) glXGetCurrentContext();
- return gc ? gc->currentReadable : 0;
-}
-
-
-GLXDrawable
-glXGetCurrentReadDrawableSGI(void)
-{
- return glXGetCurrentReadDrawable();
-}
-
-
-GLXPixmap
-glXCreateGLXPixmap( Display *dpy, XVisualInfo *visinfo, Pixmap pixmap )
-{
- XMesaVisual v;
- XMesaBuffer b;
-
- v = find_glx_visual( dpy, visinfo );
- if (!v) {
- v = create_glx_visual( dpy, visinfo );
- if (!v) {
- /* unusable visual */
- return 0;
- }
- }
-
- b = XMesaCreatePixmapBuffer( v, pixmap, 0 );
- if (!b) {
- return 0;
- }
- return b->drawable;
-}
-
-
-/*** GLX_MESA_pixmap_colormap ***/
-
-GLXPixmap
-glXCreateGLXPixmapMESA( Display *dpy, XVisualInfo *visinfo,
- Pixmap pixmap, Colormap cmap )
-{
- XMesaVisual v;
- XMesaBuffer b;
-
- v = find_glx_visual( dpy, visinfo );
- if (!v) {
- v = create_glx_visual( dpy, visinfo );
- if (!v) {
- /* unusable visual */
- return 0;
- }
- }
-
- b = XMesaCreatePixmapBuffer( v, pixmap, cmap );
- if (!b) {
- return 0;
- }
- return b->drawable;
-}
-
-
-void
-glXDestroyGLXPixmap( Display *dpy, GLXPixmap pixmap )
-{
- XMesaBuffer b = XMesaFindBuffer(dpy, pixmap);
- if (b) {
- XMesaDestroyBuffer(b);
- }
- else if (_mesa_getenv("MESA_DEBUG")) {
- _mesa_warning(NULL, "Mesa: glXDestroyGLXPixmap: invalid pixmap\n");
- }
-}
-
-
-void
-glXCopyContext( Display *dpy, GLXContext src, GLXContext dst,
- unsigned long mask )
-{
- struct fake_glx_context *fakeSrc = (struct fake_glx_context *) src;
- struct fake_glx_context *fakeDst = (struct fake_glx_context *) dst;
- XMesaContext xm_src = fakeSrc->xmesaContext;
- XMesaContext xm_dst = fakeDst->xmesaContext;
- (void) dpy;
- if (MakeCurrent_PrevContext == src) {
- _mesa_Flush();
- }
- st_copy_context_state( xm_src->st, xm_dst->st, (GLuint) mask );
-}
-
-
-Bool
-glXQueryExtension( Display *dpy, int *errorb, int *event )
-{
- /* Mesa's GLX isn't really an X extension but we try to act like one. */
- (void) dpy;
- (void) errorb;
- (void) event;
- return True;
-}
-
-
-void
-glXDestroyContext( Display *dpy, GLXContext ctx )
-{
- struct fake_glx_context *glxCtx = (struct fake_glx_context *) ctx;
- (void) dpy;
- MakeCurrent_PrevContext = 0;
- MakeCurrent_PrevDrawable = 0;
- MakeCurrent_PrevReadable = 0;
- MakeCurrent_PrevDrawBuffer = 0;
- MakeCurrent_PrevReadBuffer = 0;
- XMesaDestroyContext( glxCtx->xmesaContext );
- XMesaGarbageCollect();
- _mesa_free(glxCtx);
-}
-
-
-Bool
-glXIsDirect( Display *dpy, GLXContext ctx )
-{
- struct fake_glx_context *glxCtx = (struct fake_glx_context *) ctx;
- (void) ctx;
- return glxCtx->glxContext.isDirect;
-}
-
-
-
-void
-glXSwapBuffers( Display *dpy, GLXDrawable drawable )
-{
- XMesaBuffer buffer = XMesaFindBuffer( dpy, drawable );
- static boolean firsttime = 1, no_rast = 0;
-
- if (firsttime) {
- no_rast = getenv("SP_NO_RAST") != NULL;
- firsttime = 0;
- }
-
- if (no_rast)
- return;
-
- if (buffer) {
- XMesaSwapBuffers(buffer);
- }
- else if (_mesa_getenv("MESA_DEBUG")) {
- _mesa_warning(NULL, "glXSwapBuffers: invalid drawable 0x%x\n",
- (int) drawable);
- }
-}
-
-
-
-/*** GLX_MESA_copy_sub_buffer ***/
-
-void
-glXCopySubBufferMESA( Display *dpy, GLXDrawable drawable,
- int x, int y, int width, int height )
-{
- XMesaBuffer buffer = XMesaFindBuffer( dpy, drawable );
- if (buffer) {
- XMesaCopySubBuffer(buffer, x, y, width, height);
- }
- else if (_mesa_getenv("MESA_DEBUG")) {
- _mesa_warning(NULL, "Mesa: glXCopySubBufferMESA: invalid drawable\n");
- }
-}
-
-
-Bool
-glXQueryVersion( Display *dpy, int *maj, int *min )
-{
- (void) dpy;
- /* Return GLX version, not Mesa version */
- assert(CLIENT_MAJOR_VERSION == SERVER_MAJOR_VERSION);
- *maj = CLIENT_MAJOR_VERSION;
- *min = MIN2( CLIENT_MINOR_VERSION, SERVER_MINOR_VERSION );
- return True;
-}
-
-
-/*
- * Query the GLX attributes of the given XVisualInfo.
- */
-static int
-get_config( XMesaVisual xmvis, int attrib, int *value, GLboolean fbconfig )
-{
- ASSERT(xmvis);
- switch(attrib) {
- case GLX_USE_GL:
- if (fbconfig)
- return GLX_BAD_ATTRIBUTE;
- *value = (int) True;
- return 0;
- case GLX_BUFFER_SIZE:
- *value = xmvis->visinfo->depth;
- return 0;
- case GLX_LEVEL:
- *value = xmvis->mesa_visual.level;
- return 0;
- case GLX_RGBA:
- if (fbconfig)
- return GLX_BAD_ATTRIBUTE;
- if (xmvis->mesa_visual.rgbMode) {
- *value = True;
- }
- else {
- *value = False;
- }
- return 0;
- case GLX_DOUBLEBUFFER:
- *value = (int) xmvis->mesa_visual.doubleBufferMode;
- return 0;
- case GLX_STEREO:
- *value = (int) xmvis->mesa_visual.stereoMode;
- return 0;
- case GLX_AUX_BUFFERS:
- *value = xmvis->mesa_visual.numAuxBuffers;
- return 0;
- case GLX_RED_SIZE:
- *value = xmvis->mesa_visual.redBits;
- return 0;
- case GLX_GREEN_SIZE:
- *value = xmvis->mesa_visual.greenBits;
- return 0;
- case GLX_BLUE_SIZE:
- *value = xmvis->mesa_visual.blueBits;
- return 0;
- case GLX_ALPHA_SIZE:
- *value = xmvis->mesa_visual.alphaBits;
- return 0;
- case GLX_DEPTH_SIZE:
- *value = xmvis->mesa_visual.depthBits;
- return 0;
- case GLX_STENCIL_SIZE:
- *value = xmvis->mesa_visual.stencilBits;
- return 0;
- case GLX_ACCUM_RED_SIZE:
- *value = xmvis->mesa_visual.accumRedBits;
- return 0;
- case GLX_ACCUM_GREEN_SIZE:
- *value = xmvis->mesa_visual.accumGreenBits;
- return 0;
- case GLX_ACCUM_BLUE_SIZE:
- *value = xmvis->mesa_visual.accumBlueBits;
- return 0;
- case GLX_ACCUM_ALPHA_SIZE:
- *value = xmvis->mesa_visual.accumAlphaBits;
- return 0;
-
- /*
- * GLX_EXT_visual_info extension
- */
- case GLX_X_VISUAL_TYPE_EXT:
- switch (xmvis->visinfo->CLASS) {
- case StaticGray: *value = GLX_STATIC_GRAY_EXT; return 0;
- case GrayScale: *value = GLX_GRAY_SCALE_EXT; return 0;
- case StaticColor: *value = GLX_STATIC_GRAY_EXT; return 0;
- case PseudoColor: *value = GLX_PSEUDO_COLOR_EXT; return 0;
- case TrueColor: *value = GLX_TRUE_COLOR_EXT; return 0;
- case DirectColor: *value = GLX_DIRECT_COLOR_EXT; return 0;
- }
- return 0;
- case GLX_TRANSPARENT_TYPE_EXT:
- /* normal planes */
- *value = GLX_NONE_EXT;
- return 0;
- case GLX_TRANSPARENT_INDEX_VALUE_EXT:
- /* undefined */
- return 0;
- case GLX_TRANSPARENT_RED_VALUE_EXT:
- /* undefined */
- return 0;
- case GLX_TRANSPARENT_GREEN_VALUE_EXT:
- /* undefined */
- return 0;
- case GLX_TRANSPARENT_BLUE_VALUE_EXT:
- /* undefined */
- return 0;
- case GLX_TRANSPARENT_ALPHA_VALUE_EXT:
- /* undefined */
- return 0;
-
- /*
- * GLX_EXT_visual_info extension
- */
- case GLX_VISUAL_CAVEAT_EXT:
- /* test for zero, just in case */
- if (xmvis->mesa_visual.visualRating > 0)
- *value = xmvis->mesa_visual.visualRating;
- else
- *value = GLX_NONE_EXT;
- return 0;
-
- /*
- * GLX_ARB_multisample
- */
- case GLX_SAMPLE_BUFFERS_ARB:
- *value = 0;
- return 0;
- case GLX_SAMPLES_ARB:
- *value = 0;
- return 0;
-
- /*
- * For FBConfigs:
- */
- case GLX_SCREEN_EXT:
- if (!fbconfig)
- return GLX_BAD_ATTRIBUTE;
- *value = xmvis->visinfo->screen;
- break;
- case GLX_DRAWABLE_TYPE: /*SGIX too */
- if (!fbconfig)
- return GLX_BAD_ATTRIBUTE;
- *value = GLX_WINDOW_BIT | GLX_PIXMAP_BIT | GLX_PBUFFER_BIT;
- break;
- case GLX_RENDER_TYPE_SGIX:
- if (!fbconfig)
- return GLX_BAD_ATTRIBUTE;
- if (xmvis->mesa_visual.rgbMode)
- *value = GLX_RGBA_BIT;
- else
- *value = GLX_COLOR_INDEX_BIT;
- break;
- case GLX_X_RENDERABLE_SGIX:
- if (!fbconfig)
- return GLX_BAD_ATTRIBUTE;
- *value = True; /* XXX really? */
- break;
- case GLX_FBCONFIG_ID_SGIX:
- if (!fbconfig)
- return GLX_BAD_ATTRIBUTE;
- *value = xmvis->visinfo->visualid;
- break;
- case GLX_MAX_PBUFFER_WIDTH:
- if (!fbconfig)
- return GLX_BAD_ATTRIBUTE;
- /* XXX or MAX_WIDTH? */
- *value = DisplayWidth(xmvis->display, xmvis->visinfo->screen);
- break;
- case GLX_MAX_PBUFFER_HEIGHT:
- if (!fbconfig)
- return GLX_BAD_ATTRIBUTE;
- *value = DisplayHeight(xmvis->display, xmvis->visinfo->screen);
- break;
- case GLX_MAX_PBUFFER_PIXELS:
- if (!fbconfig)
- return GLX_BAD_ATTRIBUTE;
- *value = DisplayWidth(xmvis->display, xmvis->visinfo->screen) *
- DisplayHeight(xmvis->display, xmvis->visinfo->screen);
- break;
- case GLX_VISUAL_ID:
- if (!fbconfig)
- return GLX_BAD_ATTRIBUTE;
- *value = xmvis->visinfo->visualid;
- break;
-
-#ifdef GLX_EXT_texture_from_pixmap
- case GLX_BIND_TO_TEXTURE_RGB_EXT:
- *value = True; /*XXX*/
- break;
- case GLX_BIND_TO_TEXTURE_RGBA_EXT:
- /* XXX review */
- *value = xmvis->mesa_visual.alphaBits > 0 ? True : False;
- break;
- case GLX_BIND_TO_MIPMAP_TEXTURE_EXT:
- *value = True; /*XXX*/
- break;
- case GLX_BIND_TO_TEXTURE_TARGETS_EXT:
- *value = (GLX_TEXTURE_1D_BIT_EXT |
- GLX_TEXTURE_2D_BIT_EXT |
- GLX_TEXTURE_RECTANGLE_BIT_EXT); /*XXX*/
- break;
- case GLX_Y_INVERTED_EXT:
- *value = True; /*XXX*/
- break;
-#endif
-
- default:
- return GLX_BAD_ATTRIBUTE;
- }
- return Success;
-}
-
-
-int
-glXGetConfig( Display *dpy, XVisualInfo *visinfo,
- int attrib, int *value )
-{
- XMesaVisual xmvis;
- int k;
- if (!dpy || !visinfo)
- return GLX_BAD_ATTRIBUTE;
-
- xmvis = find_glx_visual( dpy, visinfo );
- if (!xmvis) {
- /* this visual wasn't obtained with glXChooseVisual */
- xmvis = create_glx_visual( dpy, visinfo );
- if (!xmvis) {
- /* this visual can't be used for GL rendering */
- if (attrib==GLX_USE_GL) {
- *value = (int) False;
- return 0;
- }
- else {
- return GLX_BAD_VISUAL;
- }
- }
- }
-
- k = get_config(xmvis, attrib, value, GL_FALSE);
- return k;
-}
-
-
-void
-glXWaitGL( void )
-{
- XMesaContext xmesa = XMesaGetCurrentContext();
- XMesaFlush( xmesa );
-}
-
-
-
-void
-glXWaitX( void )
-{
- XMesaContext xmesa = XMesaGetCurrentContext();
- XMesaFlush( xmesa );
-}
-
-
-static const char *
-get_extensions( void )
-{
- return EXTENSIONS;
-}
-
-
-
-/* GLX 1.1 and later */
-const char *
-glXQueryExtensionsString( Display *dpy, int screen )
-{
- (void) dpy;
- (void) screen;
- return get_extensions();
-}
-
-
-
-/* GLX 1.1 and later */
-const char *
-glXQueryServerString( Display *dpy, int screen, int name )
-{
- static char version[1000];
- _mesa_sprintf(version, "%d.%d %s",
- SERVER_MAJOR_VERSION, SERVER_MINOR_VERSION, MESA_GLX_VERSION);
-
- (void) dpy;
- (void) screen;
-
- switch (name) {
- case GLX_EXTENSIONS:
- return get_extensions();
- case GLX_VENDOR:
- return VENDOR;
- case GLX_VERSION:
- return version;
- default:
- return NULL;
- }
-}
-
-
-
-/* GLX 1.1 and later */
-const char *
-glXGetClientString( Display *dpy, int name )
-{
- static char version[1000];
- _mesa_sprintf(version, "%d.%d %s", CLIENT_MAJOR_VERSION,
- CLIENT_MINOR_VERSION, MESA_GLX_VERSION);
-
- (void) dpy;
-
- switch (name) {
- case GLX_EXTENSIONS:
- return get_extensions();
- case GLX_VENDOR:
- return VENDOR;
- case GLX_VERSION:
- return version;
- default:
- return NULL;
- }
-}
-
-
-
-/*
- * GLX 1.3 and later
- */
-
-
-int
-glXGetFBConfigAttrib( Display *dpy, GLXFBConfig config,
- int attribute, int *value )
-{
- XMesaVisual v = (XMesaVisual) config;
- (void) dpy;
- (void) config;
-
- if (!dpy || !config || !value)
- return -1;
-
- return get_config(v, attribute, value, GL_TRUE);
-}
-
-
-GLXFBConfig *
-glXGetFBConfigs( Display *dpy, int screen, int *nelements )
-{
- XVisualInfo *visuals, visTemplate;
- const long visMask = VisualScreenMask;
- int i;
-
- /* Get list of all X visuals */
- visTemplate.screen = screen;
- visuals = XGetVisualInfo(dpy, visMask, &visTemplate, nelements);
- if (*nelements > 0) {
- XMesaVisual *results;
- results = (XMesaVisual *) _mesa_malloc(*nelements * sizeof(XMesaVisual));
- if (!results) {
- *nelements = 0;
- return NULL;
- }
- for (i = 0; i < *nelements; i++) {
- results[i] = create_glx_visual(dpy, visuals + i);
- }
- return (GLXFBConfig *) results;
- }
- return NULL;
-}
-
-
-GLXFBConfig *
-glXChooseFBConfig( Display *dpy, int screen,
- const int *attribList, int *nitems )
-{
- XMesaVisual xmvis;
-
- if (!attribList || !attribList[0]) {
- /* return list of all configs (per GLX_SGIX_fbconfig spec) */
- return glXGetFBConfigs(dpy, screen, nitems);
- }
-
- xmvis = choose_visual(dpy, screen, attribList, GL_TRUE);
- if (xmvis) {
- GLXFBConfig *config = (GLXFBConfig *) _mesa_malloc(sizeof(XMesaVisual));
- if (!config) {
- *nitems = 0;
- return NULL;
- }
- *nitems = 1;
- config[0] = (GLXFBConfig) xmvis;
- return (GLXFBConfig *) config;
- }
- else {
- *nitems = 0;
- return NULL;
- }
-}
-
-
-XVisualInfo *
-glXGetVisualFromFBConfig( Display *dpy, GLXFBConfig config )
-{
- if (dpy && config) {
- XMesaVisual xmvis = (XMesaVisual) config;
-#if 0
- return xmvis->vishandle;
-#else
- /* create a new vishandle - the cached one may be stale */
- xmvis->vishandle = (XVisualInfo *) _mesa_malloc(sizeof(XVisualInfo));
- if (xmvis->vishandle) {
- _mesa_memcpy(xmvis->vishandle, xmvis->visinfo, sizeof(XVisualInfo));
- }
- return xmvis->vishandle;
-#endif
- }
- else {
- return NULL;
- }
-}
-
-
-GLXWindow
-glXCreateWindow( Display *dpy, GLXFBConfig config, Window win,
- const int *attribList )
-{
- XMesaVisual xmvis = (XMesaVisual) config;
- XMesaBuffer xmbuf;
- if (!xmvis)
- return 0;
-
- xmbuf = XMesaCreateWindowBuffer(xmvis, win);
- if (!xmbuf)
- return 0;
-
- (void) dpy;
- (void) attribList; /* Ignored in GLX 1.3 */
-
- return win; /* A hack for now */
-}
-
-
-void
-glXDestroyWindow( Display *dpy, GLXWindow window )
-{
- XMesaBuffer b = XMesaFindBuffer(dpy, (Drawable) window);
- if (b)
- XMesaDestroyBuffer(b);
- /* don't destroy X window */
-}
-
-
-/* XXX untested */
-GLXPixmap
-glXCreatePixmap( Display *dpy, GLXFBConfig config, Pixmap pixmap,
- const int *attribList )
-{
- XMesaVisual v = (XMesaVisual) config;
- XMesaBuffer b;
- const int *attr;
- int target = 0, format = 0, mipmap = 0;
- int value;
-
- if (!dpy || !config || !pixmap)
- return 0;
-
- for (attr = attribList; attr && *attr; attr++) {
- switch (*attr) {
- case GLX_TEXTURE_FORMAT_EXT:
- attr++;
- switch (*attr) {
- case GLX_TEXTURE_FORMAT_NONE_EXT:
- case GLX_TEXTURE_FORMAT_RGB_EXT:
- case GLX_TEXTURE_FORMAT_RGBA_EXT:
- format = *attr;
- break;
- default:
- /* error */
- return 0;
- }
- break;
- case GLX_TEXTURE_TARGET_EXT:
- attr++;
- switch (*attr) {
- case GLX_TEXTURE_1D_EXT:
- case GLX_TEXTURE_2D_EXT:
- case GLX_TEXTURE_RECTANGLE_EXT:
- target = *attr;
- break;
- default:
- /* error */
- return 0;
- }
- break;
- case GLX_MIPMAP_TEXTURE_EXT:
- attr++;
- if (*attr)
- mipmap = 1;
- break;
- default:
- /* error */
- return 0;
- }
- }
-
- if (format == GLX_TEXTURE_FORMAT_RGB_EXT) {
- if (get_config(v, GLX_BIND_TO_TEXTURE_RGB_EXT,
- &value, GL_TRUE) != Success
- || !value) {
- return 0; /* error! */
- }
- }
- else if (format == GLX_TEXTURE_FORMAT_RGBA_EXT) {
- if (get_config(v, GLX_BIND_TO_TEXTURE_RGBA_EXT,
- &value, GL_TRUE) != Success
- || !value) {
- return 0; /* error! */
- }
- }
- if (mipmap) {
- if (get_config(v, GLX_BIND_TO_MIPMAP_TEXTURE_EXT,
- &value, GL_TRUE) != Success
- || !value) {
- return 0; /* error! */
- }
- }
- if (target == GLX_TEXTURE_1D_EXT) {
- if (get_config(v, GLX_BIND_TO_TEXTURE_TARGETS_EXT,
- &value, GL_TRUE) != Success
- || (value & GLX_TEXTURE_1D_BIT_EXT) == 0) {
- return 0; /* error! */
- }
- }
- else if (target == GLX_TEXTURE_2D_EXT) {
- if (get_config(v, GLX_BIND_TO_TEXTURE_TARGETS_EXT,
- &value, GL_TRUE) != Success
- || (value & GLX_TEXTURE_2D_BIT_EXT) == 0) {
- return 0; /* error! */
- }
- }
- if (target == GLX_TEXTURE_RECTANGLE_EXT) {
- if (get_config(v, GLX_BIND_TO_TEXTURE_TARGETS_EXT,
- &value, GL_TRUE) != Success
- || (value & GLX_TEXTURE_RECTANGLE_BIT_EXT) == 0) {
- return 0; /* error! */
- }
- }
-
- if (format || target || mipmap) {
- /* texture from pixmap */
- b = XMesaCreatePixmapTextureBuffer(v, pixmap, 0, format, target, mipmap);
- }
- else {
- b = XMesaCreatePixmapBuffer( v, pixmap, 0 );
- }
- if (!b) {
- return 0;
- }
-
- return pixmap;
-}
-
-
-void
-glXDestroyPixmap( Display *dpy, GLXPixmap pixmap )
-{
- XMesaBuffer b = XMesaFindBuffer(dpy, (Drawable)pixmap);
- if (b)
- XMesaDestroyBuffer(b);
- /* don't destroy X pixmap */
-}
-
-
-GLXPbuffer
-glXCreatePbuffer( Display *dpy, GLXFBConfig config,
- const int *attribList )
-{
- XMesaVisual xmvis = (XMesaVisual) config;
- XMesaBuffer xmbuf;
- const int *attrib;
- int width = 0, height = 0;
- GLboolean useLargest = GL_FALSE, preserveContents = GL_FALSE;
-
- (void) dpy;
-
- for (attrib = attribList; *attrib; attrib++) {
- switch (*attrib) {
- case GLX_PBUFFER_WIDTH:
- attrib++;
- width = *attrib;
- break;
- case GLX_PBUFFER_HEIGHT:
- attrib++;
- height = *attrib;
- break;
- case GLX_PRESERVED_CONTENTS:
- attrib++;
- preserveContents = *attrib; /* ignored */
- break;
- case GLX_LARGEST_PBUFFER:
- attrib++;
- useLargest = *attrib; /* ignored */
- break;
- default:
- return 0;
- }
- }
-
- /* not used at this time */
- (void) useLargest;
- (void) preserveContents;
-
- if (width == 0 || height == 0)
- return 0;
-
- xmbuf = XMesaCreatePBuffer( xmvis, 0, width, height);
- /* A GLXPbuffer handle must be an X Drawable because that's what
- * glXMakeCurrent takes.
- */
- if (xmbuf)
- return (GLXPbuffer) xmbuf->drawable;
- else
- return 0;
-}
-
-
-void
-glXDestroyPbuffer( Display *dpy, GLXPbuffer pbuf )
-{
- XMesaBuffer b = XMesaFindBuffer(dpy, pbuf);
- if (b) {
- XMesaDestroyBuffer(b);
- }
-}
-
-
-void
-glXQueryDrawable( Display *dpy, GLXDrawable draw, int attribute,
- unsigned int *value )
-{
- XMesaBuffer xmbuf = XMesaFindBuffer(dpy, draw);
- if (!xmbuf)
- return;
-
- switch (attribute) {
- case GLX_WIDTH:
- *value = xmesa_buffer_width(xmbuf);
- break;
- case GLX_HEIGHT:
- *value = xmesa_buffer_width(xmbuf);
- break;
- case GLX_PRESERVED_CONTENTS:
- *value = True;
- break;
- case GLX_LARGEST_PBUFFER:
- *value = xmesa_buffer_width(xmbuf) * xmesa_buffer_height(xmbuf);
- break;
- case GLX_FBCONFIG_ID:
- *value = xmbuf->xm_visual->visinfo->visualid;
- return;
-#ifdef GLX_EXT_texture_from_pixmap
- case GLX_TEXTURE_FORMAT_EXT:
- *value = xmbuf->TextureFormat;
- break;
- case GLX_TEXTURE_TARGET_EXT:
- *value = xmbuf->TextureTarget;
- break;
- case GLX_MIPMAP_TEXTURE_EXT:
- *value = xmbuf->TextureMipmap;
- break;
-#endif
-
- default:
- return; /* raise BadValue error */
- }
-}
-
-
-GLXContext
-glXCreateNewContext( Display *dpy, GLXFBConfig config,
- int renderType, GLXContext shareList, Bool direct )
-{
- struct fake_glx_context *glxCtx;
- struct fake_glx_context *shareCtx = (struct fake_glx_context *) shareList;
- XMesaVisual xmvis = (XMesaVisual) config;
-
- if (!dpy || !config ||
- (renderType != GLX_RGBA_TYPE && renderType != GLX_COLOR_INDEX_TYPE))
- return 0;
-
- glxCtx = CALLOC_STRUCT(fake_glx_context);
- if (!glxCtx)
- return 0;
-
- /* deallocate unused windows/buffers */
- XMesaGarbageCollect();
-
- glxCtx->xmesaContext = XMesaCreateContext(xmvis,
- shareCtx ? shareCtx->xmesaContext : NULL);
- if (!glxCtx->xmesaContext) {
- _mesa_free(glxCtx);
- return NULL;
- }
-
- glxCtx->glxContext.isDirect = DEFAULT_DIRECT;
- glxCtx->glxContext.currentDpy = dpy;
- glxCtx->glxContext.xid = (XID) glxCtx; /* self pointer */
-
- assert((void *) glxCtx == (void *) &(glxCtx->glxContext));
-
- return (GLXContext) glxCtx;
-}
-
-
-int
-glXQueryContext( Display *dpy, GLXContext ctx, int attribute, int *value )
-{
- struct fake_glx_context *glxCtx = (struct fake_glx_context *) ctx;
- XMesaContext xmctx = glxCtx->xmesaContext;
-
- (void) dpy;
- (void) ctx;
-
- switch (attribute) {
- case GLX_FBCONFIG_ID:
- *value = xmctx->xm_visual->visinfo->visualid;
- break;
- case GLX_RENDER_TYPE:
- if (xmctx->xm_visual->mesa_visual.rgbMode)
- *value = GLX_RGBA_BIT;
- else
- *value = GLX_COLOR_INDEX_BIT;
- break;
- case GLX_SCREEN:
- *value = 0;
- return Success;
- default:
- return GLX_BAD_ATTRIBUTE;
- }
- return 0;
-}
-
-
-void
-glXSelectEvent( Display *dpy, GLXDrawable drawable, unsigned long mask )
-{
- XMesaBuffer xmbuf = XMesaFindBuffer(dpy, drawable);
- if (xmbuf)
- xmbuf->selectedEvents = mask;
-}
-
-
-void
-glXGetSelectedEvent( Display *dpy, GLXDrawable drawable,
- unsigned long *mask )
-{
- XMesaBuffer xmbuf = XMesaFindBuffer(dpy, drawable);
- if (xmbuf)
- *mask = xmbuf->selectedEvents;
- else
- *mask = 0;
-}
-
-
-
-/*** GLX_SGI_swap_control ***/
-
-int
-glXSwapIntervalSGI(int interval)
-{
- (void) interval;
- return 0;
-}
-
-
-
-/*** GLX_SGI_video_sync ***/
-
-static unsigned int FrameCounter = 0;
-
-int
-glXGetVideoSyncSGI(unsigned int *count)
-{
- /* this is a bogus implementation */
- *count = FrameCounter++;
- return 0;
-}
-
-int
-glXWaitVideoSyncSGI(int divisor, int remainder, unsigned int *count)
-{
- if (divisor <= 0 || remainder < 0)
- return GLX_BAD_VALUE;
- /* this is a bogus implementation */
- FrameCounter++;
- while (FrameCounter % divisor != remainder)
- FrameCounter++;
- *count = FrameCounter;
- return 0;
-}
-
-
-
-/*** GLX_SGI_make_current_read ***/
-
-Bool
-glXMakeCurrentReadSGI(Display *dpy, GLXDrawable draw, GLXDrawable read, GLXContext ctx)
-{
- return glXMakeContextCurrent( dpy, draw, read, ctx );
-}
-
-/* not used
-static GLXDrawable
-glXGetCurrentReadDrawableSGI(void)
-{
- return 0;
-}
-*/
-
-
-/*** GLX_SGIX_video_source ***/
-#if defined(_VL_H)
-
-GLXVideoSourceSGIX
-glXCreateGLXVideoSourceSGIX(Display *dpy, int screen, VLServer server, VLPath path, int nodeClass, VLNode drainNode)
-{
- (void) dpy;
- (void) screen;
- (void) server;
- (void) path;
- (void) nodeClass;
- (void) drainNode;
- return 0;
-}
-
-void
-glXDestroyGLXVideoSourceSGIX(Display *dpy, GLXVideoSourceSGIX src)
-{
- (void) dpy;
- (void) src;
-}
-
-#endif
-
-
-/*** GLX_EXT_import_context ***/
-
-void
-glXFreeContextEXT(Display *dpy, GLXContext context)
-{
- (void) dpy;
- (void) context;
-}
-
-GLXContextID
-glXGetContextIDEXT(const GLXContext context)
-{
- (void) context;
- return 0;
-}
-
-GLXContext
-glXImportContextEXT(Display *dpy, GLXContextID contextID)
-{
- (void) dpy;
- (void) contextID;
- return 0;
-}
-
-int
-glXQueryContextInfoEXT(Display *dpy, GLXContext context, int attribute, int *value)
-{
- (void) dpy;
- (void) context;
- (void) attribute;
- (void) value;
- return 0;
-}
-
-
-
-/*** GLX_SGIX_fbconfig ***/
-
-int
-glXGetFBConfigAttribSGIX(Display *dpy, GLXFBConfigSGIX config, int attribute, int *value)
-{
- return glXGetFBConfigAttrib(dpy, config, attribute, value);
-}
-
-GLXFBConfigSGIX *
-glXChooseFBConfigSGIX(Display *dpy, int screen, int *attrib_list, int *nelements)
-{
- return (GLXFBConfig *) glXChooseFBConfig(dpy, screen, attrib_list, nelements);
-}
-
-
-GLXPixmap
-glXCreateGLXPixmapWithConfigSGIX(Display *dpy, GLXFBConfigSGIX config, Pixmap pixmap)
-{
- XMesaVisual xmvis = (XMesaVisual) config;
- XMesaBuffer xmbuf = XMesaCreatePixmapBuffer(xmvis, pixmap, 0);
- return xmbuf->drawable; /* need to return an X ID */
-}
-
-
-GLXContext
-glXCreateContextWithConfigSGIX(Display *dpy, GLXFBConfigSGIX config, int render_type, GLXContext share_list, Bool direct)
-{
- XMesaVisual xmvis = (XMesaVisual) config;
- struct fake_glx_context *glxCtx;
- struct fake_glx_context *shareCtx = (struct fake_glx_context *) share_list;
-
- glxCtx = CALLOC_STRUCT(fake_glx_context);
- if (!glxCtx)
- return 0;
-
- /* deallocate unused windows/buffers */
- XMesaGarbageCollect();
-
- glxCtx->xmesaContext = XMesaCreateContext(xmvis,
- shareCtx ? shareCtx->xmesaContext : NULL);
- if (!glxCtx->xmesaContext) {
- _mesa_free(glxCtx);
- return NULL;
- }
-
- glxCtx->glxContext.isDirect = DEFAULT_DIRECT;
- glxCtx->glxContext.currentDpy = dpy;
- glxCtx->glxContext.xid = (XID) glxCtx; /* self pointer */
-
- assert((void *) glxCtx == (void *) &(glxCtx->glxContext));
-
- return (GLXContext) glxCtx;
-}
-
-
-XVisualInfo *
-glXGetVisualFromFBConfigSGIX(Display *dpy, GLXFBConfigSGIX config)
-{
- return glXGetVisualFromFBConfig(dpy, config);
-}
-
-
-GLXFBConfigSGIX
-glXGetFBConfigFromVisualSGIX(Display *dpy, XVisualInfo *vis)
-{
- XMesaVisual xmvis = find_glx_visual(dpy, vis);
- if (!xmvis) {
- /* This visual wasn't found with glXChooseVisual() */
- xmvis = create_glx_visual(dpy, vis);
- }
-
- return (GLXFBConfigSGIX) xmvis;
-}
-
-
-
-/*** GLX_SGIX_pbuffer ***/
-
-GLXPbufferSGIX
-glXCreateGLXPbufferSGIX(Display *dpy, GLXFBConfigSGIX config,
- unsigned int width, unsigned int height,
- int *attribList)
-{
- XMesaVisual xmvis = (XMesaVisual) config;
- XMesaBuffer xmbuf;
- const int *attrib;
- GLboolean useLargest = GL_FALSE, preserveContents = GL_FALSE;
-
- (void) dpy;
-
- for (attrib = attribList; attrib && *attrib; attrib++) {
- switch (*attrib) {
- case GLX_PRESERVED_CONTENTS_SGIX:
- attrib++;
- preserveContents = *attrib; /* ignored */
- break;
- case GLX_LARGEST_PBUFFER_SGIX:
- attrib++;
- useLargest = *attrib; /* ignored */
- break;
- default:
- return 0;
- }
- }
-
- /* not used at this time */
- (void) useLargest;
- (void) preserveContents;
-
- xmbuf = XMesaCreatePBuffer( xmvis, 0, width, height);
- /* A GLXPbuffer handle must be an X Drawable because that's what
- * glXMakeCurrent takes.
- */
- return (GLXPbuffer) xmbuf->drawable;
-}
-
-
-void
-glXDestroyGLXPbufferSGIX(Display *dpy, GLXPbufferSGIX pbuf)
-{
- XMesaBuffer xmbuf = XMesaFindBuffer(dpy, pbuf);
- if (xmbuf) {
- XMesaDestroyBuffer(xmbuf);
- }
-}
-
-
-int
-glXQueryGLXPbufferSGIX(Display *dpy, GLXPbufferSGIX pbuf, int attribute, unsigned int *value)
-{
- const XMesaBuffer xmbuf = XMesaFindBuffer(dpy, pbuf);
-
- if (!xmbuf) {
- /* Generate GLXBadPbufferSGIX for bad pbuffer */
- return 0;
- }
-
- switch (attribute) {
- case GLX_PRESERVED_CONTENTS_SGIX:
- *value = True;
- break;
- case GLX_LARGEST_PBUFFER_SGIX:
- *value = xmesa_buffer_width(xmbuf) * xmesa_buffer_height(xmbuf);
- break;
- case GLX_WIDTH_SGIX:
- *value = xmesa_buffer_width(xmbuf);
- break;
- case GLX_HEIGHT_SGIX:
- *value = xmesa_buffer_height(xmbuf);
- break;
- case GLX_EVENT_MASK_SGIX:
- *value = 0; /* XXX might be wrong */
- break;
- default:
- *value = 0;
- }
- return 0;
-}
-
-
-void
-glXSelectEventSGIX(Display *dpy, GLXDrawable drawable, unsigned long mask)
-{
- XMesaBuffer xmbuf = XMesaFindBuffer(dpy, drawable);
- if (xmbuf) {
- /* Note: we'll never generate clobber events */
- xmbuf->selectedEvents = mask;
- }
-}
-
-
-void
-glXGetSelectedEventSGIX(Display *dpy, GLXDrawable drawable, unsigned long *mask)
-{
- XMesaBuffer xmbuf = XMesaFindBuffer(dpy, drawable);
- if (xmbuf) {
- *mask = xmbuf->selectedEvents;
- }
- else {
- *mask = 0;
- }
-}
-
-
-
-/*** GLX_SGI_cushion ***/
-
-void
-glXCushionSGI(Display *dpy, Window win, float cushion)
-{
- (void) dpy;
- (void) win;
- (void) cushion;
-}
-
-
-
-/*** GLX_SGIX_video_resize ***/
-
-int
-glXBindChannelToWindowSGIX(Display *dpy, int screen, int channel , Window window)
-{
- (void) dpy;
- (void) screen;
- (void) channel;
- (void) window;
- return 0;
-}
-
-int
-glXChannelRectSGIX(Display *dpy, int screen, int channel, int x, int y, int w, int h)
-{
- (void) dpy;
- (void) screen;
- (void) channel;
- (void) x;
- (void) y;
- (void) w;
- (void) h;
- return 0;
-}
-
-int
-glXQueryChannelRectSGIX(Display *dpy, int screen, int channel, int *x, int *y, int *w, int *h)
-{
- (void) dpy;
- (void) screen;
- (void) channel;
- (void) x;
- (void) y;
- (void) w;
- (void) h;
- return 0;
-}
-
-int
-glXQueryChannelDeltasSGIX(Display *dpy, int screen, int channel, int *dx, int *dy, int *dw, int *dh)
-{
- (void) dpy;
- (void) screen;
- (void) channel;
- (void) dx;
- (void) dy;
- (void) dw;
- (void) dh;
- return 0;
-}
-
-int
-glXChannelRectSyncSGIX(Display *dpy, int screen, int channel, GLenum synctype)
-{
- (void) dpy;
- (void) screen;
- (void) channel;
- (void) synctype;
- return 0;
-}
-
-
-
-/*** GLX_SGIX_dmbuffer **/
-
-#if defined(_DM_BUFFER_H_)
-Bool
-glXAssociateDMPbufferSGIX(Display *dpy, GLXPbufferSGIX pbuffer, DMparams *params, DMbuffer dmbuffer)
-{
- (void) dpy;
- (void) pbuffer;
- (void) params;
- (void) dmbuffer;
- return False;
-}
-#endif
-
-
-/*** GLX_SGIX_swap_group ***/
-
-void
-glXJoinSwapGroupSGIX(Display *dpy, GLXDrawable drawable, GLXDrawable member)
-{
- (void) dpy;
- (void) drawable;
- (void) member;
-}
-
-
-
-/*** GLX_SGIX_swap_barrier ***/
-
-void
-glXBindSwapBarrierSGIX(Display *dpy, GLXDrawable drawable, int barrier)
-{
- (void) dpy;
- (void) drawable;
- (void) barrier;
-}
-
-Bool
-glXQueryMaxSwapBarriersSGIX(Display *dpy, int screen, int *max)
-{
- (void) dpy;
- (void) screen;
- (void) max;
- return False;
-}
-
-
-
-/*** GLX_SUN_get_transparent_index ***/
-
-Status
-glXGetTransparentIndexSUN(Display *dpy, Window overlay, Window underlay, long *pTransparent)
-{
- (void) dpy;
- (void) overlay;
- (void) underlay;
- (void) pTransparent;
- return 0;
-}
-
-
-
-/*** GLX_MESA_release_buffers ***/
-
-/*
- * Release the depth, stencil, accum buffers attached to a GLXDrawable
- * (a window or pixmap) prior to destroying the GLXDrawable.
- */
-Bool
-glXReleaseBuffersMESA( Display *dpy, GLXDrawable d )
-{
- XMesaBuffer b = XMesaFindBuffer(dpy, d);
- if (b) {
- XMesaDestroyBuffer(b);
- return True;
- }
- return False;
-}
-
-/*** GLX_EXT_texture_from_pixmap ***/
-
-void
-glXBindTexImageEXT(Display *dpy, GLXDrawable drawable, int buffer,
- const int *attrib_list)
-{
- XMesaBuffer b = XMesaFindBuffer(dpy, drawable);
- if (b)
- XMesaBindTexImage(dpy, b, buffer, attrib_list);
-}
-
-void
-glXReleaseTexImageEXT(Display *dpy, GLXDrawable drawable, int buffer)
-{
- XMesaBuffer b = XMesaFindBuffer(dpy, drawable);
- if (b)
- XMesaReleaseTexImage(dpy, b, buffer);
-}
--- /dev/null
+/*
+ * Mesa 3-D graphics library
+ * Version: 7.6
+ *
+ * Copyright (C) 1999-2007 Brian Paul All Rights Reserved.
+ * Copyright (C) 2009 VMware, Inc. All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included
+ * in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
+ * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+
+/**
+ * "Fake" GLX API implemented in terms of the XMesa*() functions.
+ * XXX rename this file to glx_api.c
+ */
+
+
+
+#define GLX_GLXEXT_PROTOTYPES
+#include "GL/glx.h"
+
+#include "xm_api.h"
+#include "context.h"
+#include "config.h"
+#include "macros.h"
+#include "imports.h"
+#include "version.h"
+#include "state_tracker/st_context.h"
+#include "state_tracker/st_public.h"
+
+
+/* This indicates the client-side GLX API and GLX encoder version. */
+#define CLIENT_MAJOR_VERSION 1
+#define CLIENT_MINOR_VERSION 4 /* but don't have 1.3's pbuffers, etc yet */
+
+/* This indicates the server-side GLX decoder version.
+ * GLX 1.4 indicates OpenGL 1.3 support
+ */
+#define SERVER_MAJOR_VERSION 1
+#define SERVER_MINOR_VERSION 4
+
+/* This is appended onto the glXGetClient/ServerString version strings. */
+#define MESA_GLX_VERSION "Mesa " MESA_VERSION_STRING
+
+/* Who implemented this GLX? */
+#define VENDOR "Brian Paul"
+
+#define EXTENSIONS \
+ "GLX_MESA_copy_sub_buffer " \
+ "GLX_MESA_pixmap_colormap " \
+ "GLX_MESA_release_buffers " \
+ "GLX_ARB_get_proc_address " \
+ "GLX_EXT_texture_from_pixmap " \
+ "GLX_EXT_visual_info " \
+ "GLX_EXT_visual_rating " \
+ /*"GLX_SGI_video_sync "*/ \
+ "GLX_SGIX_fbconfig " \
+ "GLX_SGIX_pbuffer "
+
+#define DEFAULT_DIRECT GL_TRUE
+
+
+
+/**
+ * Minimal __GLXContextRec that mimics a "real" GLX context.
+ */
+typedef struct __GLXcontextRec
+{
+ Display *currentDpy;
+ GLboolean isDirect;
+ GLXDrawable currentDrawable;
+ GLXDrawable currentReadable;
+ XID xid;
+} __GLXcontext;
+
+
+/**
+ * Our fake GLX context will contain a "real" GLX context and an XMesa context.
+ *
+ * Note that a pointer to a __GLXcontext is a pointer to a fake_glx_context,
+ * and vice versa.
+ *
+ * XXX merge this struct with the one above.
+ */
+struct fake_glx_context
+{
+ __GLXcontext glxContext; /* this MUST be first! */
+ XMesaContext xmesaContext;
+};
+
+
+
+static pipe_tsd ContextTSD;
+
+/** Set current context for calling thread */
+static void
+SetCurrentContext(GLXContext c)
+{
+ pipe_tsd_set(&ContextTSD, c);
+}
+
+/** Get current context for calling thread */
+static GLXContext
+GetCurrentContext(void)
+{
+ return pipe_tsd_get(&ContextTSD);
+}
+
+
+
+/**********************************************************************/
+/*** Debug helper code ***/
+/**********************************************************************/
+
+extern void _kw_ungrab_all( Display *dpy );
+void _kw_ungrab_all( Display *dpy )
+{
+ XUngrabPointer( dpy, CurrentTime );
+ XUngrabKeyboard( dpy, CurrentTime );
+}
+
+
+
+/**********************************************************************/
+/*** GLX Visual Code ***/
+/**********************************************************************/
+
+#define DONT_CARE -1
+
+
+static XMesaVisual *VisualTable = NULL;
+static int NumVisuals = 0;
+
+
+
+/* Macro to handle c_class vs class field name in XVisualInfo struct */
+#if defined(__cplusplus) || defined(c_plusplus)
+#define CLASS c_class
+#else
+#define CLASS class
+#endif
+
+
+
+/*
+ * Test if the given XVisualInfo is usable for Mesa rendering.
+ */
+static GLboolean
+is_usable_visual( XVisualInfo *vinfo )
+{
+ switch (vinfo->CLASS) {
+ case StaticGray:
+ case GrayScale:
+ /* Any StaticGray/GrayScale visual works in RGB or CI mode */
+ return GL_TRUE;
+ case StaticColor:
+ case PseudoColor:
+ /* Any StaticColor/PseudoColor visual of at least 4 bits */
+ if (vinfo->depth>=4) {
+ return GL_TRUE;
+ }
+ else {
+ return GL_FALSE;
+ }
+ case TrueColor:
+ case DirectColor:
+ /* Any depth of TrueColor or DirectColor works in RGB mode */
+ return GL_TRUE;
+ default:
+ /* This should never happen */
+ return GL_FALSE;
+ }
+}
+
+
+/*
+ * Given an XVisualInfo and RGB, Double, and Depth buffer flags, save the
+ * configuration in our list of GLX visuals.
+ */
+static XMesaVisual
+save_glx_visual( Display *dpy, XVisualInfo *vinfo,
+ GLboolean rgbFlag, GLboolean alphaFlag, GLboolean dbFlag,
+ GLboolean stereoFlag,
+ GLint depth_size, GLint stencil_size,
+ GLint accumRedSize, GLint accumGreenSize,
+ GLint accumBlueSize, GLint accumAlphaSize,
+ GLint level, GLint numAuxBuffers )
+{
+ GLboolean ximageFlag = GL_TRUE;
+ XMesaVisual xmvis;
+ GLint i;
+ GLboolean comparePointers;
+
+ if (dbFlag) {
+ /* Check if the MESA_BACK_BUFFER env var is set */
+ char *backbuffer = _mesa_getenv("MESA_BACK_BUFFER");
+ if (backbuffer) {
+ if (backbuffer[0]=='p' || backbuffer[0]=='P') {
+ ximageFlag = GL_FALSE;
+ }
+ else if (backbuffer[0]=='x' || backbuffer[0]=='X') {
+ ximageFlag = GL_TRUE;
+ }
+ else {
+ _mesa_warning(NULL, "Mesa: invalid value for MESA_BACK_BUFFER environment variable, using an XImage.");
+ }
+ }
+ }
+
+ if (stereoFlag) {
+ /* stereo not supported */
+ return NULL;
+ }
+
+ if (stencil_size > 0 && depth_size > 0)
+ depth_size = 24;
+
+ /* Comparing IDs uses less memory but sometimes fails. */
+ /* XXX revisit this after 3.0 is finished. */
+ if (_mesa_getenv("MESA_GLX_VISUAL_HACK"))
+ comparePointers = GL_TRUE;
+ else
+ comparePointers = GL_FALSE;
+
+ /* Force the visual to have an alpha channel */
+ if (rgbFlag && _mesa_getenv("MESA_GLX_FORCE_ALPHA"))
+ alphaFlag = GL_TRUE;
+
+ /* First check if a matching visual is already in the list */
+ for (i=0; i<NumVisuals; i++) {
+ XMesaVisual v = VisualTable[i];
+ if (v->display == dpy
+ && v->mesa_visual.level == level
+ && v->mesa_visual.numAuxBuffers == numAuxBuffers
+ && v->ximage_flag == ximageFlag
+ && v->mesa_visual.rgbMode == rgbFlag
+ && v->mesa_visual.doubleBufferMode == dbFlag
+ && v->mesa_visual.stereoMode == stereoFlag
+ && (v->mesa_visual.alphaBits > 0) == alphaFlag
+ && (v->mesa_visual.depthBits >= depth_size || depth_size == 0)
+ && (v->mesa_visual.stencilBits >= stencil_size || stencil_size == 0)
+ && (v->mesa_visual.accumRedBits >= accumRedSize || accumRedSize == 0)
+ && (v->mesa_visual.accumGreenBits >= accumGreenSize || accumGreenSize == 0)
+ && (v->mesa_visual.accumBlueBits >= accumBlueSize || accumBlueSize == 0)
+ && (v->mesa_visual.accumAlphaBits >= accumAlphaSize || accumAlphaSize == 0)) {
+ /* now either compare XVisualInfo pointers or visual IDs */
+ if ((!comparePointers && v->visinfo->visualid == vinfo->visualid)
+ || (comparePointers && v->vishandle == vinfo)) {
+ return v;
+ }
+ }
+ }
+
+ /* Create a new visual and add it to the list. */
+
+ xmvis = XMesaCreateVisual( dpy, vinfo, rgbFlag, alphaFlag, dbFlag,
+ stereoFlag, ximageFlag,
+ depth_size, stencil_size,
+ accumRedSize, accumBlueSize,
+ accumBlueSize, accumAlphaSize, 0, level,
+ GLX_NONE_EXT );
+ if (xmvis) {
+ /* Save a copy of the pointer now so we can find this visual again
+ * if we need to search for it in find_glx_visual().
+ */
+ xmvis->vishandle = vinfo;
+ /* Allocate more space for additional visual */
+ VisualTable = (XMesaVisual *) _mesa_realloc( VisualTable,
+ sizeof(XMesaVisual) * NumVisuals,
+ sizeof(XMesaVisual) * (NumVisuals + 1));
+ /* add xmvis to the list */
+ VisualTable[NumVisuals] = xmvis;
+ NumVisuals++;
+ /* XXX minor hack, because XMesaCreateVisual doesn't support an
+ * aux buffers parameter.
+ */
+ xmvis->mesa_visual.numAuxBuffers = numAuxBuffers;
+ }
+ return xmvis;
+}
+
+
+/**
+ * Return the default number of bits for the Z buffer.
+ * If defined, use the MESA_GLX_DEPTH_BITS env var value.
+ * Otherwise, use the DEFAULT_SOFTWARE_DEPTH_BITS constant.
+ * XXX probably do the same thing for stencil, accum, etc.
+ */
+static GLint
+default_depth_bits(void)
+{
+ int zBits;
+ const char *zEnv = _mesa_getenv("MESA_GLX_DEPTH_BITS");
+ if (zEnv)
+ zBits = _mesa_atoi(zEnv);
+ else
+ zBits = DEFAULT_SOFTWARE_DEPTH_BITS;
+ return zBits;
+}
+
+static GLint
+default_alpha_bits(void)
+{
+ int aBits;
+ const char *aEnv = _mesa_getenv("MESA_GLX_ALPHA_BITS");
+ if (aEnv)
+ aBits = _mesa_atoi(aEnv);
+ else
+ aBits = 0;
+ return aBits;
+}
+
+static GLint
+default_accum_bits(void)
+{
+ return 16;
+}
+
+
+
+/*
+ * Create a GLX visual from a regular XVisualInfo.
+ * This is called when Fake GLX is given an XVisualInfo which wasn't
+ * returned by glXChooseVisual. Since this is the first time we're
+ * considering this visual we'll take a guess at reasonable values
+ * for depth buffer size, stencil size, accum size, etc.
+ * This is the best we can do with a client-side emulation of GLX.
+ */
+static XMesaVisual
+create_glx_visual( Display *dpy, XVisualInfo *visinfo )
+{
+ GLint zBits = default_depth_bits();
+ GLint accBits = default_accum_bits();
+ GLboolean alphaFlag = default_alpha_bits() > 0;
+
+ if (is_usable_visual( visinfo )) {
+ /* Configure this visual as RGB, double-buffered, depth-buffered. */
+ /* This is surely wrong for some people's needs but what else */
+ /* can be done? They should use glXChooseVisual(). */
+ return save_glx_visual( dpy, visinfo,
+ GL_TRUE, /* rgb */
+ alphaFlag, /* alpha */
+ GL_TRUE, /* double */
+ GL_FALSE, /* stereo */
+ zBits,
+ STENCIL_BITS,
+ accBits, /* r */
+ accBits, /* g */
+ accBits, /* b */
+ accBits, /* a */
+ 0, /* level */
+ 0 /* numAux */
+ );
+ }
+ else {
+ _mesa_warning(NULL, "Mesa: error in glXCreateContext: bad visual\n");
+ return NULL;
+ }
+}
+
+
+
+/*
+ * Find the GLX visual associated with an XVisualInfo.
+ */
+static XMesaVisual
+find_glx_visual( Display *dpy, XVisualInfo *vinfo )
+{
+ int i;
+
+ /* try to match visual id */
+ for (i=0;i<NumVisuals;i++) {
+ if (VisualTable[i]->display==dpy
+ && VisualTable[i]->visinfo->visualid == vinfo->visualid) {
+ return VisualTable[i];
+ }
+ }
+
+ /* if that fails, try to match pointers */
+ for (i=0;i<NumVisuals;i++) {
+ if (VisualTable[i]->display==dpy && VisualTable[i]->vishandle==vinfo) {
+ return VisualTable[i];
+ }
+ }
+
+ return NULL;
+}
+
+
+/**
+ * Try to get an X visual which matches the given arguments.
+ */
+static XVisualInfo *
+get_visual( Display *dpy, int scr, unsigned int depth, int xclass )
+{
+ XVisualInfo temp, *vis;
+ long mask;
+ int n;
+ unsigned int default_depth;
+ int default_class;
+
+ mask = VisualScreenMask | VisualDepthMask | VisualClassMask;
+ temp.screen = scr;
+ temp.depth = depth;
+ temp.CLASS = xclass;
+
+ default_depth = DefaultDepth(dpy,scr);
+ default_class = DefaultVisual(dpy,scr)->CLASS;
+
+ if (depth==default_depth && xclass==default_class) {
+ /* try to get root window's visual */
+ temp.visualid = DefaultVisual(dpy,scr)->visualid;
+ mask |= VisualIDMask;
+ }
+
+ vis = XGetVisualInfo( dpy, mask, &temp, &n );
+
+ /* In case bits/pixel > 24, make sure color channels are still <=8 bits.
+ * An SGI Infinite Reality system, for example, can have 30bpp pixels:
+ * 10 bits per color channel. Mesa's limited to a max of 8 bits/channel.
+ */
+ if (vis && depth > 24 && (xclass==TrueColor || xclass==DirectColor)) {
+ if (_mesa_bitcount((GLuint) vis->red_mask ) <= 8 &&
+ _mesa_bitcount((GLuint) vis->green_mask) <= 8 &&
+ _mesa_bitcount((GLuint) vis->blue_mask ) <= 8) {
+ return vis;
+ }
+ else {
+ XFree((void *) vis);
+ return NULL;
+ }
+ }
+
+ return vis;
+}
+
+
+/*
+ * Retrieve the value of the given environment variable and find
+ * the X visual which matches it.
+ * Input: dpy - the display
+ * screen - the screen number
+ * varname - the name of the environment variable
+ * Return: an XVisualInfo pointer to NULL if error.
+ */
+static XVisualInfo *
+get_env_visual(Display *dpy, int scr, const char *varname)
+{
+ char value[100], type[100];
+ int depth, xclass = -1;
+ XVisualInfo *vis;
+
+ if (!_mesa_getenv( varname )) {
+ return NULL;
+ }
+
+ _mesa_strncpy( value, _mesa_getenv(varname), 100 );
+ value[99] = 0;
+
+ sscanf( value, "%s %d", type, &depth );
+
+ if (_mesa_strcmp(type,"TrueColor")==0) xclass = TrueColor;
+ else if (_mesa_strcmp(type,"DirectColor")==0) xclass = DirectColor;
+ else if (_mesa_strcmp(type,"PseudoColor")==0) xclass = PseudoColor;
+ else if (_mesa_strcmp(type,"StaticColor")==0) xclass = StaticColor;
+ else if (_mesa_strcmp(type,"GrayScale")==0) xclass = GrayScale;
+ else if (_mesa_strcmp(type,"StaticGray")==0) xclass = StaticGray;
+
+ if (xclass>-1 && depth>0) {
+ vis = get_visual( dpy, scr, depth, xclass );
+ if (vis) {
+ return vis;
+ }
+ }
+
+ _mesa_warning(NULL, "GLX unable to find visual class=%s, depth=%d.",
+ type, depth);
+
+ return NULL;
+}
+
+
+
+/*
+ * Select an X visual which satisfies the RGBA flag and minimum depth.
+ * Input: dpy,
+ * screen - X display and screen number
+ * min_depth - minimum visual depth
+ * preferred_class - preferred GLX visual class or DONT_CARE
+ * Return: pointer to an XVisualInfo or NULL.
+ */
+static XVisualInfo *
+choose_x_visual( Display *dpy, int screen, int min_depth,
+ int preferred_class )
+{
+ XVisualInfo *vis;
+ int xclass, visclass = 0;
+ int depth;
+
+ /* First see if the MESA_RGB_VISUAL env var is defined */
+ vis = get_env_visual( dpy, screen, "MESA_RGB_VISUAL" );
+ if (vis) {
+ return vis;
+ }
+ /* Otherwise, search for a suitable visual */
+ if (preferred_class==DONT_CARE) {
+ for (xclass=0;xclass<6;xclass++) {
+ switch (xclass) {
+ case 0: visclass = TrueColor; break;
+ case 1: visclass = DirectColor; break;
+ case 2: visclass = PseudoColor; break;
+ case 3: visclass = StaticColor; break;
+ case 4: visclass = GrayScale; break;
+ case 5: visclass = StaticGray; break;
+ }
+ if (min_depth==0) {
+ /* start with shallowest */
+ for (depth=0;depth<=32;depth++) {
+ if (visclass==TrueColor && depth==8) {
+ /* Special case: try to get 8-bit PseudoColor before */
+ /* 8-bit TrueColor */
+ vis = get_visual( dpy, screen, 8, PseudoColor );
+ if (vis) {
+ return vis;
+ }
+ }
+ vis = get_visual( dpy, screen, depth, visclass );
+ if (vis) {
+ return vis;
+ }
+ }
+ }
+ else {
+ /* start with deepest */
+ for (depth=32;depth>=min_depth;depth--) {
+ if (visclass==TrueColor && depth==8) {
+ /* Special case: try to get 8-bit PseudoColor before */
+ /* 8-bit TrueColor */
+ vis = get_visual( dpy, screen, 8, PseudoColor );
+ if (vis) {
+ return vis;
+ }
+ }
+ vis = get_visual( dpy, screen, depth, visclass );
+ if (vis) {
+ return vis;
+ }
+ }
+ }
+ }
+ }
+ else {
+ /* search for a specific visual class */
+ switch (preferred_class) {
+ case GLX_TRUE_COLOR_EXT: visclass = TrueColor; break;
+ case GLX_DIRECT_COLOR_EXT: visclass = DirectColor; break;
+ case GLX_PSEUDO_COLOR_EXT: visclass = PseudoColor; break;
+ case GLX_STATIC_COLOR_EXT: visclass = StaticColor; break;
+ case GLX_GRAY_SCALE_EXT: visclass = GrayScale; break;
+ case GLX_STATIC_GRAY_EXT: visclass = StaticGray; break;
+ default: return NULL;
+ }
+ if (min_depth==0) {
+ /* start with shallowest */
+ for (depth=0;depth<=32;depth++) {
+ vis = get_visual( dpy, screen, depth, visclass );
+ if (vis) {
+ return vis;
+ }
+ }
+ }
+ else {
+ /* start with deepest */
+ for (depth=32;depth>=min_depth;depth--) {
+ vis = get_visual( dpy, screen, depth, visclass );
+ if (vis) {
+ return vis;
+ }
+ }
+ }
+ }
+
+ /* didn't find a visual */
+ return NULL;
+}
+
+
+
+
+/**********************************************************************/
+/*** Display-related functions ***/
+/**********************************************************************/
+
+
+/**
+ * Free all XMesaVisuals which are associated with the given display.
+ */
+static void
+destroy_visuals_on_display(Display *dpy)
+{
+ int i;
+ for (i = 0; i < NumVisuals; i++) {
+ if (VisualTable[i]->display == dpy) {
+ /* remove this visual */
+ int j;
+ free(VisualTable[i]);
+ for (j = i; j < NumVisuals - 1; j++)
+ VisualTable[j] = VisualTable[j + 1];
+ NumVisuals--;
+ }
+ }
+}
+
+
+/**
+ * Called from XCloseDisplay() to let us free our display-related data.
+ */
+static int
+close_display_callback(Display *dpy, XExtCodes *codes)
+{
+ destroy_visuals_on_display(dpy);
+ xmesa_destroy_buffers_on_display(dpy);
+ return 0;
+}
+
+
+/**
+ * Look for the named extension on given display and return a pointer
+ * to the _XExtension data, or NULL if extension not found.
+ */
+static _XExtension *
+lookup_extension(Display *dpy, const char *extName)
+{
+ _XExtension *ext;
+ for (ext = dpy->ext_procs; ext; ext = ext->next) {
+ if (ext->name && strcmp(ext->name, extName) == 0) {
+ return ext;
+ }
+ }
+ return NULL;
+}
+
+
+/**
+ * Whenever we're given a new Display pointer, call this function to
+ * register our close_display_callback function.
+ */
+static void
+register_with_display(Display *dpy)
+{
+ const char *extName = "MesaGLX";
+ _XExtension *ext;
+
+ ext = lookup_extension(dpy, extName);
+ if (!ext) {
+ XExtCodes *c = XAddExtension(dpy);
+ ext = dpy->ext_procs; /* new extension is at head of list */
+ assert(c->extension == ext->codes.extension);
+ ext->name = _mesa_strdup(extName);
+ ext->close_display = close_display_callback;
+ }
+}
+
+
+/**********************************************************************/
+/*** Begin Fake GLX API Functions ***/
+/**********************************************************************/
+
+
+/**
+ * Helper used by glXChooseVisual and glXChooseFBConfig.
+ * The fbConfig parameter must be GL_FALSE for the former and GL_TRUE for
+ * the later.
+ * In either case, the attribute list is terminated with the value 'None'.
+ */
+static XMesaVisual
+choose_visual( Display *dpy, int screen, const int *list, GLboolean fbConfig )
+{
+ const GLboolean rgbModeDefault = fbConfig;
+ const int *parselist;
+ XVisualInfo *vis;
+ int min_ci = 0;
+ int min_red=0, min_green=0, min_blue=0;
+ GLboolean rgb_flag = rgbModeDefault;
+ GLboolean alpha_flag = GL_FALSE;
+ GLboolean double_flag = GL_FALSE;
+ GLboolean stereo_flag = GL_FALSE;
+ GLint depth_size = 0;
+ GLint stencil_size = 0;
+ GLint accumRedSize = 0;
+ GLint accumGreenSize = 0;
+ GLint accumBlueSize = 0;
+ GLint accumAlphaSize = 0;
+ int level = 0;
+ int visual_type = DONT_CARE;
+ int trans_type = DONT_CARE;
+ int trans_value = DONT_CARE;
+ GLint caveat = DONT_CARE;
+ XMesaVisual xmvis = NULL;
+ int desiredVisualID = -1;
+ int numAux = 0;
+
+ parselist = list;
+
+ while (*parselist) {
+
+ switch (*parselist) {
+ case GLX_USE_GL:
+ if (fbConfig) {
+ /* invalid token */
+ return NULL;
+ }
+ else {
+ /* skip */
+ parselist++;
+ }
+ break;
+ case GLX_BUFFER_SIZE:
+ parselist++;
+ min_ci = *parselist++;
+ break;
+ case GLX_LEVEL:
+ parselist++;
+ level = *parselist++;
+ break;
+ case GLX_RGBA:
+ if (fbConfig) {
+ /* invalid token */
+ return NULL;
+ }
+ else {
+ rgb_flag = GL_TRUE;
+ parselist++;
+ }
+ break;
+ case GLX_DOUBLEBUFFER:
+ parselist++;
+ if (fbConfig) {
+ double_flag = *parselist++;
+ }
+ else {
+ double_flag = GL_TRUE;
+ }
+ break;
+ case GLX_STEREO:
+ parselist++;
+ if (fbConfig) {
+ stereo_flag = *parselist++;
+ }
+ else {
+ stereo_flag = GL_TRUE;
+ }
+ break;
+ case GLX_AUX_BUFFERS:
+ parselist++;
+ numAux = *parselist++;
+ if (numAux > MAX_AUX_BUFFERS)
+ return NULL;
+ break;
+ case GLX_RED_SIZE:
+ parselist++;
+ min_red = *parselist++;
+ break;
+ case GLX_GREEN_SIZE:
+ parselist++;
+ min_green = *parselist++;
+ break;
+ case GLX_BLUE_SIZE:
+ parselist++;
+ min_blue = *parselist++;
+ break;
+ case GLX_ALPHA_SIZE:
+ parselist++;
+ {
+ GLint size = *parselist++;
+ alpha_flag = size ? GL_TRUE : GL_FALSE;
+ }
+ break;
+ case GLX_DEPTH_SIZE:
+ parselist++;
+ depth_size = *parselist++;
+ break;
+ case GLX_STENCIL_SIZE:
+ parselist++;
+ stencil_size = *parselist++;
+ break;
+ case GLX_ACCUM_RED_SIZE:
+ parselist++;
+ {
+ GLint size = *parselist++;
+ accumRedSize = MAX2( accumRedSize, size );
+ }
+ break;
+ case GLX_ACCUM_GREEN_SIZE:
+ parselist++;
+ {
+ GLint size = *parselist++;
+ accumGreenSize = MAX2( accumGreenSize, size );
+ }
+ break;
+ case GLX_ACCUM_BLUE_SIZE:
+ parselist++;
+ {
+ GLint size = *parselist++;
+ accumBlueSize = MAX2( accumBlueSize, size );
+ }
+ break;
+ case GLX_ACCUM_ALPHA_SIZE:
+ parselist++;
+ {
+ GLint size = *parselist++;
+ accumAlphaSize = MAX2( accumAlphaSize, size );
+ }
+ break;
+
+ /*
+ * GLX_EXT_visual_info extension
+ */
+ case GLX_X_VISUAL_TYPE_EXT:
+ parselist++;
+ visual_type = *parselist++;
+ break;
+ case GLX_TRANSPARENT_TYPE_EXT:
+ parselist++;
+ trans_type = *parselist++;
+ break;
+ case GLX_TRANSPARENT_INDEX_VALUE_EXT:
+ parselist++;
+ trans_value = *parselist++;
+ break;
+ case GLX_TRANSPARENT_RED_VALUE_EXT:
+ case GLX_TRANSPARENT_GREEN_VALUE_EXT:
+ case GLX_TRANSPARENT_BLUE_VALUE_EXT:
+ case GLX_TRANSPARENT_ALPHA_VALUE_EXT:
+ /* ignore */
+ parselist++;
+ parselist++;
+ break;
+
+ /*
+ * GLX_EXT_visual_info extension
+ */
+ case GLX_VISUAL_CAVEAT_EXT:
+ parselist++;
+ caveat = *parselist++; /* ignored for now */
+ break;
+
+ /*
+ * GLX_ARB_multisample
+ */
+ case GLX_SAMPLE_BUFFERS_ARB:
+ /* ms not supported */
+ return NULL;
+ case GLX_SAMPLES_ARB:
+ /* ms not supported */
+ return NULL;
+
+ /*
+ * FBConfig attribs.
+ */
+ case GLX_RENDER_TYPE:
+ if (!fbConfig)
+ return NULL;
+ parselist++;
+ if (*parselist == GLX_RGBA_BIT) {
+ rgb_flag = GL_TRUE;
+ }
+ else if (*parselist == GLX_COLOR_INDEX_BIT) {
+ rgb_flag = GL_FALSE;
+ }
+ else if (*parselist == 0) {
+ rgb_flag = GL_TRUE;
+ }
+ parselist++;
+ break;
+ case GLX_DRAWABLE_TYPE:
+ if (!fbConfig)
+ return NULL;
+ parselist++;
+ if (*parselist & ~(GLX_WINDOW_BIT | GLX_PIXMAP_BIT | GLX_PBUFFER_BIT)) {
+ return NULL; /* bad bit */
+ }
+ parselist++;
+ break;
+ case GLX_FBCONFIG_ID:
+ if (!fbConfig)
+ return NULL;
+ parselist++;
+ desiredVisualID = *parselist++;
+ break;
+ case GLX_X_RENDERABLE:
+ if (!fbConfig)
+ return NULL;
+ parselist += 2;
+ /* ignore */
+ break;
+
+#ifdef GLX_EXT_texture_from_pixmap
+ case GLX_BIND_TO_TEXTURE_RGB_EXT:
+ parselist++; /*skip*/
+ break;
+ case GLX_BIND_TO_TEXTURE_RGBA_EXT:
+ parselist++; /*skip*/
+ break;
+ case GLX_BIND_TO_MIPMAP_TEXTURE_EXT:
+ parselist++; /*skip*/
+ break;
+ case GLX_BIND_TO_TEXTURE_TARGETS_EXT:
+ parselist++;
+ if (*parselist & ~(GLX_TEXTURE_1D_BIT_EXT |
+ GLX_TEXTURE_2D_BIT_EXT |
+ GLX_TEXTURE_RECTANGLE_BIT_EXT)) {
+ /* invalid bit */
+ return NULL;
+ }
+ break;
+ case GLX_Y_INVERTED_EXT:
+ parselist++; /*skip*/
+ break;
+#endif
+
+ case None:
+ /* end of list */
+ break;
+
+ default:
+ /* undefined attribute */
+ _mesa_warning(NULL, "unexpected attrib 0x%x in choose_visual()",
+ *parselist);
+ return NULL;
+ }
+ }
+
+ (void) caveat;
+
+
+ /*
+ * Since we're only simulating the GLX extension this function will never
+ * find any real GL visuals. Instead, all we can do is try to find an RGB
+ * or CI visual of appropriate depth. Other requested attributes such as
+ * double buffering, depth buffer, etc. will be associated with the X
+ * visual and stored in the VisualTable[].
+ */
+ if (desiredVisualID != -1) {
+ /* try to get a specific visual, by visualID */
+ XVisualInfo temp;
+ int n;
+ temp.visualid = desiredVisualID;
+ temp.screen = screen;
+ vis = XGetVisualInfo(dpy, VisualIDMask | VisualScreenMask, &temp, &n);
+ if (vis) {
+ /* give the visual some useful GLX attributes */
+ double_flag = GL_TRUE;
+ rgb_flag = GL_TRUE;
+ depth_size = default_depth_bits();
+ stencil_size = STENCIL_BITS;
+ /* XXX accum??? */
+ }
+ }
+ else if (level==0) {
+ /* normal color planes */
+ /* Get an RGB visual */
+ int min_rgb = min_red + min_green + min_blue;
+ if (min_rgb>1 && min_rgb<8) {
+ /* a special case to be sure we can get a monochrome visual */
+ min_rgb = 1;
+ }
+ vis = choose_x_visual( dpy, screen, min_rgb, visual_type );
+ }
+ else {
+ _mesa_warning(NULL, "overlay not supported");
+ return NULL;
+ }
+
+ if (vis) {
+ /* Note: we're not exactly obeying the glXChooseVisual rules here.
+ * When GLX_DEPTH_SIZE = 1 is specified we're supposed to choose the
+ * largest depth buffer size, which is 32bits/value. Instead, we
+ * return 16 to maintain performance with earlier versions of Mesa.
+ */
+ if (stencil_size > 0)
+ depth_size = 24; /* if Z and stencil, always use 24+8 format */
+ else if (depth_size > 24)
+ depth_size = 32;
+ else if (depth_size > 16)
+ depth_size = 24;
+ else if (depth_size > 0) {
+ depth_size = default_depth_bits();
+ }
+
+ if (!alpha_flag) {
+ alpha_flag = default_alpha_bits() > 0;
+ }
+
+ /* we only support one size of stencil and accum buffers. */
+ if (stencil_size > 0)
+ stencil_size = STENCIL_BITS;
+
+ if (accumRedSize > 0 ||
+ accumGreenSize > 0 ||
+ accumBlueSize > 0 ||
+ accumAlphaSize > 0) {
+
+ accumRedSize =
+ accumGreenSize =
+ accumBlueSize = default_accum_bits();
+
+ accumAlphaSize = alpha_flag ? accumRedSize : 0;
+ }
+
+ xmvis = save_glx_visual( dpy, vis, rgb_flag, alpha_flag, double_flag,
+ stereo_flag, depth_size, stencil_size,
+ accumRedSize, accumGreenSize,
+ accumBlueSize, accumAlphaSize, level, numAux );
+ }
+
+ return xmvis;
+}
+
+
+XVisualInfo *
+glXChooseVisual( Display *dpy, int screen, int *list )
+{
+ XMesaVisual xmvis;
+
+ /* register ourselves as an extension on this display */
+ register_with_display(dpy);
+
+ xmvis = choose_visual(dpy, screen, list, GL_FALSE);
+ if (xmvis) {
+ /* create a new vishandle - the cached one may be stale */
+ xmvis->vishandle = (XVisualInfo *) _mesa_malloc(sizeof(XVisualInfo));
+ if (xmvis->vishandle) {
+ _mesa_memcpy(xmvis->vishandle, xmvis->visinfo, sizeof(XVisualInfo));
+ }
+ return xmvis->vishandle;
+ }
+ else
+ return NULL;
+}
+
+
+GLXContext
+glXCreateContext( Display *dpy, XVisualInfo *visinfo,
+ GLXContext share_list, Bool direct )
+{
+ XMesaVisual xmvis;
+ struct fake_glx_context *glxCtx;
+ struct fake_glx_context *shareCtx = (struct fake_glx_context *) share_list;
+
+ if (!dpy || !visinfo)
+ return 0;
+
+ glxCtx = CALLOC_STRUCT(fake_glx_context);
+ if (!glxCtx)
+ return 0;
+
+ /* deallocate unused windows/buffers */
+#if 0
+ XMesaGarbageCollect();
+#endif
+
+ xmvis = find_glx_visual( dpy, visinfo );
+ if (!xmvis) {
+ /* This visual wasn't found with glXChooseVisual() */
+ xmvis = create_glx_visual( dpy, visinfo );
+ if (!xmvis) {
+ /* unusable visual */
+ _mesa_free(glxCtx);
+ return NULL;
+ }
+ }
+
+ glxCtx->xmesaContext = XMesaCreateContext(xmvis,
+ shareCtx ? shareCtx->xmesaContext : NULL);
+ if (!glxCtx->xmesaContext) {
+ _mesa_free(glxCtx);
+ return NULL;
+ }
+
+ glxCtx->glxContext.isDirect = DEFAULT_DIRECT;
+ glxCtx->glxContext.currentDpy = dpy;
+ glxCtx->glxContext.xid = (XID) glxCtx; /* self pointer */
+
+ assert((void *) glxCtx == (void *) &(glxCtx->glxContext));
+
+ return (GLXContext) glxCtx;
+}
+
+
+/* XXX these may have to be removed due to thread-safety issues. */
+static GLXContext MakeCurrent_PrevContext = 0;
+static GLXDrawable MakeCurrent_PrevDrawable = 0;
+static GLXDrawable MakeCurrent_PrevReadable = 0;
+static XMesaBuffer MakeCurrent_PrevDrawBuffer = 0;
+static XMesaBuffer MakeCurrent_PrevReadBuffer = 0;
+
+
+/* GLX 1.3 and later */
+Bool
+glXMakeContextCurrent( Display *dpy, GLXDrawable draw,
+ GLXDrawable read, GLXContext ctx )
+{
+ struct fake_glx_context *glxCtx = (struct fake_glx_context *) ctx;
+ static boolean firsttime = 1, no_rast = 0;
+
+ if (firsttime) {
+ no_rast = getenv("SP_NO_RAST") != NULL;
+ firsttime = 0;
+ }
+
+ if (ctx && draw && read) {
+ XMesaBuffer drawBuffer, readBuffer;
+ XMesaContext xmctx = glxCtx->xmesaContext;
+
+ /* Find the XMesaBuffer which corresponds to the GLXDrawable 'draw' */
+ if (ctx == MakeCurrent_PrevContext
+ && draw == MakeCurrent_PrevDrawable) {
+ drawBuffer = MakeCurrent_PrevDrawBuffer;
+ }
+ else {
+ drawBuffer = XMesaFindBuffer( dpy, draw );
+ }
+ if (!drawBuffer) {
+ /* drawable must be a new window! */
+ drawBuffer = XMesaCreateWindowBuffer( xmctx->xm_visual, draw );
+ if (!drawBuffer) {
+ /* Out of memory, or context/drawable depth mismatch */
+ return False;
+ }
+ }
+
+ /* Find the XMesaBuffer which corresponds to the GLXDrawable 'read' */
+ if (ctx == MakeCurrent_PrevContext
+ && read == MakeCurrent_PrevReadable) {
+ readBuffer = MakeCurrent_PrevReadBuffer;
+ }
+ else {
+ readBuffer = XMesaFindBuffer( dpy, read );
+ }
+ if (!readBuffer) {
+ /* drawable must be a new window! */
+ readBuffer = XMesaCreateWindowBuffer( xmctx->xm_visual, read );
+ if (!readBuffer) {
+ /* Out of memory, or context/drawable depth mismatch */
+ return False;
+ }
+ }
+
+ if (no_rast &&
+ MakeCurrent_PrevContext == ctx &&
+ MakeCurrent_PrevDrawable == draw &&
+ MakeCurrent_PrevReadable == read &&
+ MakeCurrent_PrevDrawBuffer == drawBuffer &&
+ MakeCurrent_PrevReadBuffer == readBuffer)
+ return True;
+
+ MakeCurrent_PrevContext = ctx;
+ MakeCurrent_PrevDrawable = draw;
+ MakeCurrent_PrevReadable = read;
+ MakeCurrent_PrevDrawBuffer = drawBuffer;
+ MakeCurrent_PrevReadBuffer = readBuffer;
+
+ /* Now make current! */
+ if (XMesaMakeCurrent2(xmctx, drawBuffer, readBuffer)) {
+ ((__GLXcontext *) ctx)->currentDpy = dpy;
+ ((__GLXcontext *) ctx)->currentDrawable = draw;
+ ((__GLXcontext *) ctx)->currentReadable = read;
+ SetCurrentContext(ctx);
+ return True;
+ }
+ else {
+ return False;
+ }
+ }
+ else if (!ctx && !draw && !read) {
+ /* release current context w/out assigning new one. */
+ XMesaMakeCurrent2( NULL, NULL, NULL );
+ MakeCurrent_PrevContext = 0;
+ MakeCurrent_PrevDrawable = 0;
+ MakeCurrent_PrevReadable = 0;
+ MakeCurrent_PrevDrawBuffer = 0;
+ MakeCurrent_PrevReadBuffer = 0;
+ SetCurrentContext(NULL);
+ return True;
+ }
+ else {
+ /* The args must either all be non-zero or all zero.
+ * This is an error.
+ */
+ return False;
+ }
+}
+
+
+Bool
+glXMakeCurrent( Display *dpy, GLXDrawable drawable, GLXContext ctx )
+{
+ return glXMakeContextCurrent( dpy, drawable, drawable, ctx );
+}
+
+
+GLXContext
+glXGetCurrentContext(void)
+{
+ return GetCurrentContext();
+}
+
+
+Display *
+glXGetCurrentDisplay(void)
+{
+ struct fake_glx_context *glxCtx =
+ (struct fake_glx_context *) glXGetCurrentContext();
+
+ return glxCtx ? glxCtx->glxContext.currentDpy : NULL;
+}
+
+
+Display *
+glXGetCurrentDisplayEXT(void)
+{
+ return glXGetCurrentDisplay();
+}
+
+
+GLXDrawable
+glXGetCurrentDrawable(void)
+{
+ __GLXcontext *gc = (__GLXcontext *) glXGetCurrentContext();
+ return gc ? gc->currentDrawable : 0;
+}
+
+
+GLXDrawable
+glXGetCurrentReadDrawable(void)
+{
+ __GLXcontext *gc = (__GLXcontext *) glXGetCurrentContext();
+ return gc ? gc->currentReadable : 0;
+}
+
+
+GLXDrawable
+glXGetCurrentReadDrawableSGI(void)
+{
+ return glXGetCurrentReadDrawable();
+}
+
+
+GLXPixmap
+glXCreateGLXPixmap( Display *dpy, XVisualInfo *visinfo, Pixmap pixmap )
+{
+ XMesaVisual v;
+ XMesaBuffer b;
+
+ v = find_glx_visual( dpy, visinfo );
+ if (!v) {
+ v = create_glx_visual( dpy, visinfo );
+ if (!v) {
+ /* unusable visual */
+ return 0;
+ }
+ }
+
+ b = XMesaCreatePixmapBuffer( v, pixmap, 0 );
+ if (!b) {
+ return 0;
+ }
+ return b->drawable;
+}
+
+
+/*** GLX_MESA_pixmap_colormap ***/
+
+GLXPixmap
+glXCreateGLXPixmapMESA( Display *dpy, XVisualInfo *visinfo,
+ Pixmap pixmap, Colormap cmap )
+{
+ XMesaVisual v;
+ XMesaBuffer b;
+
+ v = find_glx_visual( dpy, visinfo );
+ if (!v) {
+ v = create_glx_visual( dpy, visinfo );
+ if (!v) {
+ /* unusable visual */
+ return 0;
+ }
+ }
+
+ b = XMesaCreatePixmapBuffer( v, pixmap, cmap );
+ if (!b) {
+ return 0;
+ }
+ return b->drawable;
+}
+
+
+void
+glXDestroyGLXPixmap( Display *dpy, GLXPixmap pixmap )
+{
+ XMesaBuffer b = XMesaFindBuffer(dpy, pixmap);
+ if (b) {
+ XMesaDestroyBuffer(b);
+ }
+ else if (_mesa_getenv("MESA_DEBUG")) {
+ _mesa_warning(NULL, "Mesa: glXDestroyGLXPixmap: invalid pixmap\n");
+ }
+}
+
+
+void
+glXCopyContext( Display *dpy, GLXContext src, GLXContext dst,
+ unsigned long mask )
+{
+ struct fake_glx_context *fakeSrc = (struct fake_glx_context *) src;
+ struct fake_glx_context *fakeDst = (struct fake_glx_context *) dst;
+ XMesaContext xm_src = fakeSrc->xmesaContext;
+ XMesaContext xm_dst = fakeDst->xmesaContext;
+ (void) dpy;
+ if (MakeCurrent_PrevContext == src) {
+ _mesa_Flush();
+ }
+ st_copy_context_state( xm_src->st, xm_dst->st, (GLuint) mask );
+}
+
+
+Bool
+glXQueryExtension( Display *dpy, int *errorb, int *event )
+{
+ /* Mesa's GLX isn't really an X extension but we try to act like one. */
+ (void) dpy;
+ (void) errorb;
+ (void) event;
+ return True;
+}
+
+
+void
+glXDestroyContext( Display *dpy, GLXContext ctx )
+{
+ struct fake_glx_context *glxCtx = (struct fake_glx_context *) ctx;
+ (void) dpy;
+ MakeCurrent_PrevContext = 0;
+ MakeCurrent_PrevDrawable = 0;
+ MakeCurrent_PrevReadable = 0;
+ MakeCurrent_PrevDrawBuffer = 0;
+ MakeCurrent_PrevReadBuffer = 0;
+ XMesaDestroyContext( glxCtx->xmesaContext );
+ XMesaGarbageCollect();
+ _mesa_free(glxCtx);
+}
+
+
+Bool
+glXIsDirect( Display *dpy, GLXContext ctx )
+{
+ struct fake_glx_context *glxCtx = (struct fake_glx_context *) ctx;
+ (void) ctx;
+ return glxCtx->glxContext.isDirect;
+}
+
+
+
+void
+glXSwapBuffers( Display *dpy, GLXDrawable drawable )
+{
+ XMesaBuffer buffer = XMesaFindBuffer( dpy, drawable );
+ static boolean firsttime = 1, no_rast = 0;
+
+ if (firsttime) {
+ no_rast = getenv("SP_NO_RAST") != NULL;
+ firsttime = 0;
+ }
+
+ if (no_rast)
+ return;
+
+ if (buffer) {
+ XMesaSwapBuffers(buffer);
+ }
+ else if (_mesa_getenv("MESA_DEBUG")) {
+ _mesa_warning(NULL, "glXSwapBuffers: invalid drawable 0x%x\n",
+ (int) drawable);
+ }
+}
+
+
+
+/*** GLX_MESA_copy_sub_buffer ***/
+
+void
+glXCopySubBufferMESA( Display *dpy, GLXDrawable drawable,
+ int x, int y, int width, int height )
+{
+ XMesaBuffer buffer = XMesaFindBuffer( dpy, drawable );
+ if (buffer) {
+ XMesaCopySubBuffer(buffer, x, y, width, height);
+ }
+ else if (_mesa_getenv("MESA_DEBUG")) {
+ _mesa_warning(NULL, "Mesa: glXCopySubBufferMESA: invalid drawable\n");
+ }
+}
+
+
+Bool
+glXQueryVersion( Display *dpy, int *maj, int *min )
+{
+ (void) dpy;
+ /* Return GLX version, not Mesa version */
+ assert(CLIENT_MAJOR_VERSION == SERVER_MAJOR_VERSION);
+ *maj = CLIENT_MAJOR_VERSION;
+ *min = MIN2( CLIENT_MINOR_VERSION, SERVER_MINOR_VERSION );
+ return True;
+}
+
+
+/*
+ * Query the GLX attributes of the given XVisualInfo.
+ */
+static int
+get_config( XMesaVisual xmvis, int attrib, int *value, GLboolean fbconfig )
+{
+ ASSERT(xmvis);
+ switch(attrib) {
+ case GLX_USE_GL:
+ if (fbconfig)
+ return GLX_BAD_ATTRIBUTE;
+ *value = (int) True;
+ return 0;
+ case GLX_BUFFER_SIZE:
+ *value = xmvis->visinfo->depth;
+ return 0;
+ case GLX_LEVEL:
+ *value = xmvis->mesa_visual.level;
+ return 0;
+ case GLX_RGBA:
+ if (fbconfig)
+ return GLX_BAD_ATTRIBUTE;
+ if (xmvis->mesa_visual.rgbMode) {
+ *value = True;
+ }
+ else {
+ *value = False;
+ }
+ return 0;
+ case GLX_DOUBLEBUFFER:
+ *value = (int) xmvis->mesa_visual.doubleBufferMode;
+ return 0;
+ case GLX_STEREO:
+ *value = (int) xmvis->mesa_visual.stereoMode;
+ return 0;
+ case GLX_AUX_BUFFERS:
+ *value = xmvis->mesa_visual.numAuxBuffers;
+ return 0;
+ case GLX_RED_SIZE:
+ *value = xmvis->mesa_visual.redBits;
+ return 0;
+ case GLX_GREEN_SIZE:
+ *value = xmvis->mesa_visual.greenBits;
+ return 0;
+ case GLX_BLUE_SIZE:
+ *value = xmvis->mesa_visual.blueBits;
+ return 0;
+ case GLX_ALPHA_SIZE:
+ *value = xmvis->mesa_visual.alphaBits;
+ return 0;
+ case GLX_DEPTH_SIZE:
+ *value = xmvis->mesa_visual.depthBits;
+ return 0;
+ case GLX_STENCIL_SIZE:
+ *value = xmvis->mesa_visual.stencilBits;
+ return 0;
+ case GLX_ACCUM_RED_SIZE:
+ *value = xmvis->mesa_visual.accumRedBits;
+ return 0;
+ case GLX_ACCUM_GREEN_SIZE:
+ *value = xmvis->mesa_visual.accumGreenBits;
+ return 0;
+ case GLX_ACCUM_BLUE_SIZE:
+ *value = xmvis->mesa_visual.accumBlueBits;
+ return 0;
+ case GLX_ACCUM_ALPHA_SIZE:
+ *value = xmvis->mesa_visual.accumAlphaBits;
+ return 0;
+
+ /*
+ * GLX_EXT_visual_info extension
+ */
+ case GLX_X_VISUAL_TYPE_EXT:
+ switch (xmvis->visinfo->CLASS) {
+ case StaticGray: *value = GLX_STATIC_GRAY_EXT; return 0;
+ case GrayScale: *value = GLX_GRAY_SCALE_EXT; return 0;
+ case StaticColor: *value = GLX_STATIC_GRAY_EXT; return 0;
+ case PseudoColor: *value = GLX_PSEUDO_COLOR_EXT; return 0;
+ case TrueColor: *value = GLX_TRUE_COLOR_EXT; return 0;
+ case DirectColor: *value = GLX_DIRECT_COLOR_EXT; return 0;
+ }
+ return 0;
+ case GLX_TRANSPARENT_TYPE_EXT:
+ /* normal planes */
+ *value = GLX_NONE_EXT;
+ return 0;
+ case GLX_TRANSPARENT_INDEX_VALUE_EXT:
+ /* undefined */
+ return 0;
+ case GLX_TRANSPARENT_RED_VALUE_EXT:
+ /* undefined */
+ return 0;
+ case GLX_TRANSPARENT_GREEN_VALUE_EXT:
+ /* undefined */
+ return 0;
+ case GLX_TRANSPARENT_BLUE_VALUE_EXT:
+ /* undefined */
+ return 0;
+ case GLX_TRANSPARENT_ALPHA_VALUE_EXT:
+ /* undefined */
+ return 0;
+
+ /*
+ * GLX_EXT_visual_info extension
+ */
+ case GLX_VISUAL_CAVEAT_EXT:
+ /* test for zero, just in case */
+ if (xmvis->mesa_visual.visualRating > 0)
+ *value = xmvis->mesa_visual.visualRating;
+ else
+ *value = GLX_NONE_EXT;
+ return 0;
+
+ /*
+ * GLX_ARB_multisample
+ */
+ case GLX_SAMPLE_BUFFERS_ARB:
+ *value = 0;
+ return 0;
+ case GLX_SAMPLES_ARB:
+ *value = 0;
+ return 0;
+
+ /*
+ * For FBConfigs:
+ */
+ case GLX_SCREEN_EXT:
+ if (!fbconfig)
+ return GLX_BAD_ATTRIBUTE;
+ *value = xmvis->visinfo->screen;
+ break;
+ case GLX_DRAWABLE_TYPE: /*SGIX too */
+ if (!fbconfig)
+ return GLX_BAD_ATTRIBUTE;
+ *value = GLX_WINDOW_BIT | GLX_PIXMAP_BIT | GLX_PBUFFER_BIT;
+ break;
+ case GLX_RENDER_TYPE_SGIX:
+ if (!fbconfig)
+ return GLX_BAD_ATTRIBUTE;
+ if (xmvis->mesa_visual.rgbMode)
+ *value = GLX_RGBA_BIT;
+ else
+ *value = GLX_COLOR_INDEX_BIT;
+ break;
+ case GLX_X_RENDERABLE_SGIX:
+ if (!fbconfig)
+ return GLX_BAD_ATTRIBUTE;
+ *value = True; /* XXX really? */
+ break;
+ case GLX_FBCONFIG_ID_SGIX:
+ if (!fbconfig)
+ return GLX_BAD_ATTRIBUTE;
+ *value = xmvis->visinfo->visualid;
+ break;
+ case GLX_MAX_PBUFFER_WIDTH:
+ if (!fbconfig)
+ return GLX_BAD_ATTRIBUTE;
+ /* XXX or MAX_WIDTH? */
+ *value = DisplayWidth(xmvis->display, xmvis->visinfo->screen);
+ break;
+ case GLX_MAX_PBUFFER_HEIGHT:
+ if (!fbconfig)
+ return GLX_BAD_ATTRIBUTE;
+ *value = DisplayHeight(xmvis->display, xmvis->visinfo->screen);
+ break;
+ case GLX_MAX_PBUFFER_PIXELS:
+ if (!fbconfig)
+ return GLX_BAD_ATTRIBUTE;
+ *value = DisplayWidth(xmvis->display, xmvis->visinfo->screen) *
+ DisplayHeight(xmvis->display, xmvis->visinfo->screen);
+ break;
+ case GLX_VISUAL_ID:
+ if (!fbconfig)
+ return GLX_BAD_ATTRIBUTE;
+ *value = xmvis->visinfo->visualid;
+ break;
+
+#ifdef GLX_EXT_texture_from_pixmap
+ case GLX_BIND_TO_TEXTURE_RGB_EXT:
+ *value = True; /*XXX*/
+ break;
+ case GLX_BIND_TO_TEXTURE_RGBA_EXT:
+ /* XXX review */
+ *value = xmvis->mesa_visual.alphaBits > 0 ? True : False;
+ break;
+ case GLX_BIND_TO_MIPMAP_TEXTURE_EXT:
+ *value = True; /*XXX*/
+ break;
+ case GLX_BIND_TO_TEXTURE_TARGETS_EXT:
+ *value = (GLX_TEXTURE_1D_BIT_EXT |
+ GLX_TEXTURE_2D_BIT_EXT |
+ GLX_TEXTURE_RECTANGLE_BIT_EXT); /*XXX*/
+ break;
+ case GLX_Y_INVERTED_EXT:
+ *value = True; /*XXX*/
+ break;
+#endif
+
+ default:
+ return GLX_BAD_ATTRIBUTE;
+ }
+ return Success;
+}
+
+
+int
+glXGetConfig( Display *dpy, XVisualInfo *visinfo,
+ int attrib, int *value )
+{
+ XMesaVisual xmvis;
+ int k;
+ if (!dpy || !visinfo)
+ return GLX_BAD_ATTRIBUTE;
+
+ xmvis = find_glx_visual( dpy, visinfo );
+ if (!xmvis) {
+ /* this visual wasn't obtained with glXChooseVisual */
+ xmvis = create_glx_visual( dpy, visinfo );
+ if (!xmvis) {
+ /* this visual can't be used for GL rendering */
+ if (attrib==GLX_USE_GL) {
+ *value = (int) False;
+ return 0;
+ }
+ else {
+ return GLX_BAD_VISUAL;
+ }
+ }
+ }
+
+ k = get_config(xmvis, attrib, value, GL_FALSE);
+ return k;
+}
+
+
+void
+glXWaitGL( void )
+{
+ XMesaContext xmesa = XMesaGetCurrentContext();
+ XMesaFlush( xmesa );
+}
+
+
+
+void
+glXWaitX( void )
+{
+ XMesaContext xmesa = XMesaGetCurrentContext();
+ XMesaFlush( xmesa );
+}
+
+
+static const char *
+get_extensions( void )
+{
+ return EXTENSIONS;
+}
+
+
+
+/* GLX 1.1 and later */
+const char *
+glXQueryExtensionsString( Display *dpy, int screen )
+{
+ (void) dpy;
+ (void) screen;
+ return get_extensions();
+}
+
+
+
+/* GLX 1.1 and later */
+const char *
+glXQueryServerString( Display *dpy, int screen, int name )
+{
+ static char version[1000];
+ _mesa_sprintf(version, "%d.%d %s",
+ SERVER_MAJOR_VERSION, SERVER_MINOR_VERSION, MESA_GLX_VERSION);
+
+ (void) dpy;
+ (void) screen;
+
+ switch (name) {
+ case GLX_EXTENSIONS:
+ return get_extensions();
+ case GLX_VENDOR:
+ return VENDOR;
+ case GLX_VERSION:
+ return version;
+ default:
+ return NULL;
+ }
+}
+
+
+
+/* GLX 1.1 and later */
+const char *
+glXGetClientString( Display *dpy, int name )
+{
+ static char version[1000];
+ _mesa_sprintf(version, "%d.%d %s", CLIENT_MAJOR_VERSION,
+ CLIENT_MINOR_VERSION, MESA_GLX_VERSION);
+
+ (void) dpy;
+
+ switch (name) {
+ case GLX_EXTENSIONS:
+ return get_extensions();
+ case GLX_VENDOR:
+ return VENDOR;
+ case GLX_VERSION:
+ return version;
+ default:
+ return NULL;
+ }
+}
+
+
+
+/*
+ * GLX 1.3 and later
+ */
+
+
+int
+glXGetFBConfigAttrib( Display *dpy, GLXFBConfig config,
+ int attribute, int *value )
+{
+ XMesaVisual v = (XMesaVisual) config;
+ (void) dpy;
+ (void) config;
+
+ if (!dpy || !config || !value)
+ return -1;
+
+ return get_config(v, attribute, value, GL_TRUE);
+}
+
+
+GLXFBConfig *
+glXGetFBConfigs( Display *dpy, int screen, int *nelements )
+{
+ XVisualInfo *visuals, visTemplate;
+ const long visMask = VisualScreenMask;
+ int i;
+
+ /* Get list of all X visuals */
+ visTemplate.screen = screen;
+ visuals = XGetVisualInfo(dpy, visMask, &visTemplate, nelements);
+ if (*nelements > 0) {
+ XMesaVisual *results;
+ results = (XMesaVisual *) _mesa_malloc(*nelements * sizeof(XMesaVisual));
+ if (!results) {
+ *nelements = 0;
+ return NULL;
+ }
+ for (i = 0; i < *nelements; i++) {
+ results[i] = create_glx_visual(dpy, visuals + i);
+ }
+ return (GLXFBConfig *) results;
+ }
+ return NULL;
+}
+
+
+GLXFBConfig *
+glXChooseFBConfig( Display *dpy, int screen,
+ const int *attribList, int *nitems )
+{
+ XMesaVisual xmvis;
+
+ if (!attribList || !attribList[0]) {
+ /* return list of all configs (per GLX_SGIX_fbconfig spec) */
+ return glXGetFBConfigs(dpy, screen, nitems);
+ }
+
+ xmvis = choose_visual(dpy, screen, attribList, GL_TRUE);
+ if (xmvis) {
+ GLXFBConfig *config = (GLXFBConfig *) _mesa_malloc(sizeof(XMesaVisual));
+ if (!config) {
+ *nitems = 0;
+ return NULL;
+ }
+ *nitems = 1;
+ config[0] = (GLXFBConfig) xmvis;
+ return (GLXFBConfig *) config;
+ }
+ else {
+ *nitems = 0;
+ return NULL;
+ }
+}
+
+
+XVisualInfo *
+glXGetVisualFromFBConfig( Display *dpy, GLXFBConfig config )
+{
+ if (dpy && config) {
+ XMesaVisual xmvis = (XMesaVisual) config;
+#if 0
+ return xmvis->vishandle;
+#else
+ /* create a new vishandle - the cached one may be stale */
+ xmvis->vishandle = (XVisualInfo *) _mesa_malloc(sizeof(XVisualInfo));
+ if (xmvis->vishandle) {
+ _mesa_memcpy(xmvis->vishandle, xmvis->visinfo, sizeof(XVisualInfo));
+ }
+ return xmvis->vishandle;
+#endif
+ }
+ else {
+ return NULL;
+ }
+}
+
+
+GLXWindow
+glXCreateWindow( Display *dpy, GLXFBConfig config, Window win,
+ const int *attribList )
+{
+ XMesaVisual xmvis = (XMesaVisual) config;
+ XMesaBuffer xmbuf;
+ if (!xmvis)
+ return 0;
+
+ xmbuf = XMesaCreateWindowBuffer(xmvis, win);
+ if (!xmbuf)
+ return 0;
+
+ (void) dpy;
+ (void) attribList; /* Ignored in GLX 1.3 */
+
+ return win; /* A hack for now */
+}
+
+
+void
+glXDestroyWindow( Display *dpy, GLXWindow window )
+{
+ XMesaBuffer b = XMesaFindBuffer(dpy, (Drawable) window);
+ if (b)
+ XMesaDestroyBuffer(b);
+ /* don't destroy X window */
+}
+
+
+/* XXX untested */
+GLXPixmap
+glXCreatePixmap( Display *dpy, GLXFBConfig config, Pixmap pixmap,
+ const int *attribList )
+{
+ XMesaVisual v = (XMesaVisual) config;
+ XMesaBuffer b;
+ const int *attr;
+ int target = 0, format = 0, mipmap = 0;
+ int value;
+
+ if (!dpy || !config || !pixmap)
+ return 0;
+
+ for (attr = attribList; attr && *attr; attr++) {
+ switch (*attr) {
+ case GLX_TEXTURE_FORMAT_EXT:
+ attr++;
+ switch (*attr) {
+ case GLX_TEXTURE_FORMAT_NONE_EXT:
+ case GLX_TEXTURE_FORMAT_RGB_EXT:
+ case GLX_TEXTURE_FORMAT_RGBA_EXT:
+ format = *attr;
+ break;
+ default:
+ /* error */
+ return 0;
+ }
+ break;
+ case GLX_TEXTURE_TARGET_EXT:
+ attr++;
+ switch (*attr) {
+ case GLX_TEXTURE_1D_EXT:
+ case GLX_TEXTURE_2D_EXT:
+ case GLX_TEXTURE_RECTANGLE_EXT:
+ target = *attr;
+ break;
+ default:
+ /* error */
+ return 0;
+ }
+ break;
+ case GLX_MIPMAP_TEXTURE_EXT:
+ attr++;
+ if (*attr)
+ mipmap = 1;
+ break;
+ default:
+ /* error */
+ return 0;
+ }
+ }
+
+ if (format == GLX_TEXTURE_FORMAT_RGB_EXT) {
+ if (get_config(v, GLX_BIND_TO_TEXTURE_RGB_EXT,
+ &value, GL_TRUE) != Success
+ || !value) {
+ return 0; /* error! */
+ }
+ }
+ else if (format == GLX_TEXTURE_FORMAT_RGBA_EXT) {
+ if (get_config(v, GLX_BIND_TO_TEXTURE_RGBA_EXT,
+ &value, GL_TRUE) != Success
+ || !value) {
+ return 0; /* error! */
+ }
+ }
+ if (mipmap) {
+ if (get_config(v, GLX_BIND_TO_MIPMAP_TEXTURE_EXT,
+ &value, GL_TRUE) != Success
+ || !value) {
+ return 0; /* error! */
+ }
+ }
+ if (target == GLX_TEXTURE_1D_EXT) {
+ if (get_config(v, GLX_BIND_TO_TEXTURE_TARGETS_EXT,
+ &value, GL_TRUE) != Success
+ || (value & GLX_TEXTURE_1D_BIT_EXT) == 0) {
+ return 0; /* error! */
+ }
+ }
+ else if (target == GLX_TEXTURE_2D_EXT) {
+ if (get_config(v, GLX_BIND_TO_TEXTURE_TARGETS_EXT,
+ &value, GL_TRUE) != Success
+ || (value & GLX_TEXTURE_2D_BIT_EXT) == 0) {
+ return 0; /* error! */
+ }
+ }
+ if (target == GLX_TEXTURE_RECTANGLE_EXT) {
+ if (get_config(v, GLX_BIND_TO_TEXTURE_TARGETS_EXT,
+ &value, GL_TRUE) != Success
+ || (value & GLX_TEXTURE_RECTANGLE_BIT_EXT) == 0) {
+ return 0; /* error! */
+ }
+ }
+
+ if (format || target || mipmap) {
+ /* texture from pixmap */
+ b = XMesaCreatePixmapTextureBuffer(v, pixmap, 0, format, target, mipmap);
+ }
+ else {
+ b = XMesaCreatePixmapBuffer( v, pixmap, 0 );
+ }
+ if (!b) {
+ return 0;
+ }
+
+ return pixmap;
+}
+
+
+void
+glXDestroyPixmap( Display *dpy, GLXPixmap pixmap )
+{
+ XMesaBuffer b = XMesaFindBuffer(dpy, (Drawable)pixmap);
+ if (b)
+ XMesaDestroyBuffer(b);
+ /* don't destroy X pixmap */
+}
+
+
+GLXPbuffer
+glXCreatePbuffer( Display *dpy, GLXFBConfig config,
+ const int *attribList )
+{
+ XMesaVisual xmvis = (XMesaVisual) config;
+ XMesaBuffer xmbuf;
+ const int *attrib;
+ int width = 0, height = 0;
+ GLboolean useLargest = GL_FALSE, preserveContents = GL_FALSE;
+
+ (void) dpy;
+
+ for (attrib = attribList; *attrib; attrib++) {
+ switch (*attrib) {
+ case GLX_PBUFFER_WIDTH:
+ attrib++;
+ width = *attrib;
+ break;
+ case GLX_PBUFFER_HEIGHT:
+ attrib++;
+ height = *attrib;
+ break;
+ case GLX_PRESERVED_CONTENTS:
+ attrib++;
+ preserveContents = *attrib; /* ignored */
+ break;
+ case GLX_LARGEST_PBUFFER:
+ attrib++;
+ useLargest = *attrib; /* ignored */
+ break;
+ default:
+ return 0;
+ }
+ }
+
+ /* not used at this time */
+ (void) useLargest;
+ (void) preserveContents;
+
+ if (width == 0 || height == 0)
+ return 0;
+
+ xmbuf = XMesaCreatePBuffer( xmvis, 0, width, height);
+ /* A GLXPbuffer handle must be an X Drawable because that's what
+ * glXMakeCurrent takes.
+ */
+ if (xmbuf)
+ return (GLXPbuffer) xmbuf->drawable;
+ else
+ return 0;
+}
+
+
+void
+glXDestroyPbuffer( Display *dpy, GLXPbuffer pbuf )
+{
+ XMesaBuffer b = XMesaFindBuffer(dpy, pbuf);
+ if (b) {
+ XMesaDestroyBuffer(b);
+ }
+}
+
+
+void
+glXQueryDrawable( Display *dpy, GLXDrawable draw, int attribute,
+ unsigned int *value )
+{
+ XMesaBuffer xmbuf = XMesaFindBuffer(dpy, draw);
+ if (!xmbuf)
+ return;
+
+ switch (attribute) {
+ case GLX_WIDTH:
+ *value = xmesa_buffer_width(xmbuf);
+ break;
+ case GLX_HEIGHT:
+ *value = xmesa_buffer_width(xmbuf);
+ break;
+ case GLX_PRESERVED_CONTENTS:
+ *value = True;
+ break;
+ case GLX_LARGEST_PBUFFER:
+ *value = xmesa_buffer_width(xmbuf) * xmesa_buffer_height(xmbuf);
+ break;
+ case GLX_FBCONFIG_ID:
+ *value = xmbuf->xm_visual->visinfo->visualid;
+ return;
+#ifdef GLX_EXT_texture_from_pixmap
+ case GLX_TEXTURE_FORMAT_EXT:
+ *value = xmbuf->TextureFormat;
+ break;
+ case GLX_TEXTURE_TARGET_EXT:
+ *value = xmbuf->TextureTarget;
+ break;
+ case GLX_MIPMAP_TEXTURE_EXT:
+ *value = xmbuf->TextureMipmap;
+ break;
+#endif
+
+ default:
+ return; /* raise BadValue error */
+ }
+}
+
+
+GLXContext
+glXCreateNewContext( Display *dpy, GLXFBConfig config,
+ int renderType, GLXContext shareList, Bool direct )
+{
+ struct fake_glx_context *glxCtx;
+ struct fake_glx_context *shareCtx = (struct fake_glx_context *) shareList;
+ XMesaVisual xmvis = (XMesaVisual) config;
+
+ if (!dpy || !config ||
+ (renderType != GLX_RGBA_TYPE && renderType != GLX_COLOR_INDEX_TYPE))
+ return 0;
+
+ glxCtx = CALLOC_STRUCT(fake_glx_context);
+ if (!glxCtx)
+ return 0;
+
+ /* deallocate unused windows/buffers */
+ XMesaGarbageCollect();
+
+ glxCtx->xmesaContext = XMesaCreateContext(xmvis,
+ shareCtx ? shareCtx->xmesaContext : NULL);
+ if (!glxCtx->xmesaContext) {
+ _mesa_free(glxCtx);
+ return NULL;
+ }
+
+ glxCtx->glxContext.isDirect = DEFAULT_DIRECT;
+ glxCtx->glxContext.currentDpy = dpy;
+ glxCtx->glxContext.xid = (XID) glxCtx; /* self pointer */
+
+ assert((void *) glxCtx == (void *) &(glxCtx->glxContext));
+
+ return (GLXContext) glxCtx;
+}
+
+
+int
+glXQueryContext( Display *dpy, GLXContext ctx, int attribute, int *value )
+{
+ struct fake_glx_context *glxCtx = (struct fake_glx_context *) ctx;
+ XMesaContext xmctx = glxCtx->xmesaContext;
+
+ (void) dpy;
+ (void) ctx;
+
+ switch (attribute) {
+ case GLX_FBCONFIG_ID:
+ *value = xmctx->xm_visual->visinfo->visualid;
+ break;
+ case GLX_RENDER_TYPE:
+ if (xmctx->xm_visual->mesa_visual.rgbMode)
+ *value = GLX_RGBA_BIT;
+ else
+ *value = GLX_COLOR_INDEX_BIT;
+ break;
+ case GLX_SCREEN:
+ *value = 0;
+ return Success;
+ default:
+ return GLX_BAD_ATTRIBUTE;
+ }
+ return 0;
+}
+
+
+void
+glXSelectEvent( Display *dpy, GLXDrawable drawable, unsigned long mask )
+{
+ XMesaBuffer xmbuf = XMesaFindBuffer(dpy, drawable);
+ if (xmbuf)
+ xmbuf->selectedEvents = mask;
+}
+
+
+void
+glXGetSelectedEvent( Display *dpy, GLXDrawable drawable,
+ unsigned long *mask )
+{
+ XMesaBuffer xmbuf = XMesaFindBuffer(dpy, drawable);
+ if (xmbuf)
+ *mask = xmbuf->selectedEvents;
+ else
+ *mask = 0;
+}
+
+
+
+/*** GLX_SGI_swap_control ***/
+
+int
+glXSwapIntervalSGI(int interval)
+{
+ (void) interval;
+ return 0;
+}
+
+
+
+/*** GLX_SGI_video_sync ***/
+
+static unsigned int FrameCounter = 0;
+
+int
+glXGetVideoSyncSGI(unsigned int *count)
+{
+ /* this is a bogus implementation */
+ *count = FrameCounter++;
+ return 0;
+}
+
+int
+glXWaitVideoSyncSGI(int divisor, int remainder, unsigned int *count)
+{
+ if (divisor <= 0 || remainder < 0)
+ return GLX_BAD_VALUE;
+ /* this is a bogus implementation */
+ FrameCounter++;
+ while (FrameCounter % divisor != remainder)
+ FrameCounter++;
+ *count = FrameCounter;
+ return 0;
+}
+
+
+
+/*** GLX_SGI_make_current_read ***/
+
+Bool
+glXMakeCurrentReadSGI(Display *dpy, GLXDrawable draw, GLXDrawable read, GLXContext ctx)
+{
+ return glXMakeContextCurrent( dpy, draw, read, ctx );
+}
+
+/* not used
+static GLXDrawable
+glXGetCurrentReadDrawableSGI(void)
+{
+ return 0;
+}
+*/
+
+
+/*** GLX_SGIX_video_source ***/
+#if defined(_VL_H)
+
+GLXVideoSourceSGIX
+glXCreateGLXVideoSourceSGIX(Display *dpy, int screen, VLServer server, VLPath path, int nodeClass, VLNode drainNode)
+{
+ (void) dpy;
+ (void) screen;
+ (void) server;
+ (void) path;
+ (void) nodeClass;
+ (void) drainNode;
+ return 0;
+}
+
+void
+glXDestroyGLXVideoSourceSGIX(Display *dpy, GLXVideoSourceSGIX src)
+{
+ (void) dpy;
+ (void) src;
+}
+
+#endif
+
+
+/*** GLX_EXT_import_context ***/
+
+void
+glXFreeContextEXT(Display *dpy, GLXContext context)
+{
+ (void) dpy;
+ (void) context;
+}
+
+GLXContextID
+glXGetContextIDEXT(const GLXContext context)
+{
+ (void) context;
+ return 0;
+}
+
+GLXContext
+glXImportContextEXT(Display *dpy, GLXContextID contextID)
+{
+ (void) dpy;
+ (void) contextID;
+ return 0;
+}
+
+int
+glXQueryContextInfoEXT(Display *dpy, GLXContext context, int attribute, int *value)
+{
+ (void) dpy;
+ (void) context;
+ (void) attribute;
+ (void) value;
+ return 0;
+}
+
+
+
+/*** GLX_SGIX_fbconfig ***/
+
+int
+glXGetFBConfigAttribSGIX(Display *dpy, GLXFBConfigSGIX config, int attribute, int *value)
+{
+ return glXGetFBConfigAttrib(dpy, config, attribute, value);
+}
+
+GLXFBConfigSGIX *
+glXChooseFBConfigSGIX(Display *dpy, int screen, int *attrib_list, int *nelements)
+{
+ return (GLXFBConfig *) glXChooseFBConfig(dpy, screen, attrib_list, nelements);
+}
+
+
+GLXPixmap
+glXCreateGLXPixmapWithConfigSGIX(Display *dpy, GLXFBConfigSGIX config, Pixmap pixmap)
+{
+ XMesaVisual xmvis = (XMesaVisual) config;
+ XMesaBuffer xmbuf = XMesaCreatePixmapBuffer(xmvis, pixmap, 0);
+ return xmbuf->drawable; /* need to return an X ID */
+}
+
+
+GLXContext
+glXCreateContextWithConfigSGIX(Display *dpy, GLXFBConfigSGIX config, int render_type, GLXContext share_list, Bool direct)
+{
+ XMesaVisual xmvis = (XMesaVisual) config;
+ struct fake_glx_context *glxCtx;
+ struct fake_glx_context *shareCtx = (struct fake_glx_context *) share_list;
+
+ glxCtx = CALLOC_STRUCT(fake_glx_context);
+ if (!glxCtx)
+ return 0;
+
+ /* deallocate unused windows/buffers */
+ XMesaGarbageCollect();
+
+ glxCtx->xmesaContext = XMesaCreateContext(xmvis,
+ shareCtx ? shareCtx->xmesaContext : NULL);
+ if (!glxCtx->xmesaContext) {
+ _mesa_free(glxCtx);
+ return NULL;
+ }
+
+ glxCtx->glxContext.isDirect = DEFAULT_DIRECT;
+ glxCtx->glxContext.currentDpy = dpy;
+ glxCtx->glxContext.xid = (XID) glxCtx; /* self pointer */
+
+ assert((void *) glxCtx == (void *) &(glxCtx->glxContext));
+
+ return (GLXContext) glxCtx;
+}
+
+
+XVisualInfo *
+glXGetVisualFromFBConfigSGIX(Display *dpy, GLXFBConfigSGIX config)
+{
+ return glXGetVisualFromFBConfig(dpy, config);
+}
+
+
+GLXFBConfigSGIX
+glXGetFBConfigFromVisualSGIX(Display *dpy, XVisualInfo *vis)
+{
+ XMesaVisual xmvis = find_glx_visual(dpy, vis);
+ if (!xmvis) {
+ /* This visual wasn't found with glXChooseVisual() */
+ xmvis = create_glx_visual(dpy, vis);
+ }
+
+ return (GLXFBConfigSGIX) xmvis;
+}
+
+
+
+/*** GLX_SGIX_pbuffer ***/
+
+GLXPbufferSGIX
+glXCreateGLXPbufferSGIX(Display *dpy, GLXFBConfigSGIX config,
+ unsigned int width, unsigned int height,
+ int *attribList)
+{
+ XMesaVisual xmvis = (XMesaVisual) config;
+ XMesaBuffer xmbuf;
+ const int *attrib;
+ GLboolean useLargest = GL_FALSE, preserveContents = GL_FALSE;
+
+ (void) dpy;
+
+ for (attrib = attribList; attrib && *attrib; attrib++) {
+ switch (*attrib) {
+ case GLX_PRESERVED_CONTENTS_SGIX:
+ attrib++;
+ preserveContents = *attrib; /* ignored */
+ break;
+ case GLX_LARGEST_PBUFFER_SGIX:
+ attrib++;
+ useLargest = *attrib; /* ignored */
+ break;
+ default:
+ return 0;
+ }
+ }
+
+ /* not used at this time */
+ (void) useLargest;
+ (void) preserveContents;
+
+ xmbuf = XMesaCreatePBuffer( xmvis, 0, width, height);
+ /* A GLXPbuffer handle must be an X Drawable because that's what
+ * glXMakeCurrent takes.
+ */
+ return (GLXPbuffer) xmbuf->drawable;
+}
+
+
+void
+glXDestroyGLXPbufferSGIX(Display *dpy, GLXPbufferSGIX pbuf)
+{
+ XMesaBuffer xmbuf = XMesaFindBuffer(dpy, pbuf);
+ if (xmbuf) {
+ XMesaDestroyBuffer(xmbuf);
+ }
+}
+
+
+int
+glXQueryGLXPbufferSGIX(Display *dpy, GLXPbufferSGIX pbuf, int attribute, unsigned int *value)
+{
+ const XMesaBuffer xmbuf = XMesaFindBuffer(dpy, pbuf);
+
+ if (!xmbuf) {
+ /* Generate GLXBadPbufferSGIX for bad pbuffer */
+ return 0;
+ }
+
+ switch (attribute) {
+ case GLX_PRESERVED_CONTENTS_SGIX:
+ *value = True;
+ break;
+ case GLX_LARGEST_PBUFFER_SGIX:
+ *value = xmesa_buffer_width(xmbuf) * xmesa_buffer_height(xmbuf);
+ break;
+ case GLX_WIDTH_SGIX:
+ *value = xmesa_buffer_width(xmbuf);
+ break;
+ case GLX_HEIGHT_SGIX:
+ *value = xmesa_buffer_height(xmbuf);
+ break;
+ case GLX_EVENT_MASK_SGIX:
+ *value = 0; /* XXX might be wrong */
+ break;
+ default:
+ *value = 0;
+ }
+ return 0;
+}
+
+
+void
+glXSelectEventSGIX(Display *dpy, GLXDrawable drawable, unsigned long mask)
+{
+ XMesaBuffer xmbuf = XMesaFindBuffer(dpy, drawable);
+ if (xmbuf) {
+ /* Note: we'll never generate clobber events */
+ xmbuf->selectedEvents = mask;
+ }
+}
+
+
+void
+glXGetSelectedEventSGIX(Display *dpy, GLXDrawable drawable, unsigned long *mask)
+{
+ XMesaBuffer xmbuf = XMesaFindBuffer(dpy, drawable);
+ if (xmbuf) {
+ *mask = xmbuf->selectedEvents;
+ }
+ else {
+ *mask = 0;
+ }
+}
+
+
+
+/*** GLX_SGI_cushion ***/
+
+void
+glXCushionSGI(Display *dpy, Window win, float cushion)
+{
+ (void) dpy;
+ (void) win;
+ (void) cushion;
+}
+
+
+
+/*** GLX_SGIX_video_resize ***/
+
+int
+glXBindChannelToWindowSGIX(Display *dpy, int screen, int channel , Window window)
+{
+ (void) dpy;
+ (void) screen;
+ (void) channel;
+ (void) window;
+ return 0;
+}
+
+int
+glXChannelRectSGIX(Display *dpy, int screen, int channel, int x, int y, int w, int h)
+{
+ (void) dpy;
+ (void) screen;
+ (void) channel;
+ (void) x;
+ (void) y;
+ (void) w;
+ (void) h;
+ return 0;
+}
+
+int
+glXQueryChannelRectSGIX(Display *dpy, int screen, int channel, int *x, int *y, int *w, int *h)
+{
+ (void) dpy;
+ (void) screen;
+ (void) channel;
+ (void) x;
+ (void) y;
+ (void) w;
+ (void) h;
+ return 0;
+}
+
+int
+glXQueryChannelDeltasSGIX(Display *dpy, int screen, int channel, int *dx, int *dy, int *dw, int *dh)
+{
+ (void) dpy;
+ (void) screen;
+ (void) channel;
+ (void) dx;
+ (void) dy;
+ (void) dw;
+ (void) dh;
+ return 0;
+}
+
+int
+glXChannelRectSyncSGIX(Display *dpy, int screen, int channel, GLenum synctype)
+{
+ (void) dpy;
+ (void) screen;
+ (void) channel;
+ (void) synctype;
+ return 0;
+}
+
+
+
+/*** GLX_SGIX_dmbuffer **/
+
+#if defined(_DM_BUFFER_H_)
+Bool
+glXAssociateDMPbufferSGIX(Display *dpy, GLXPbufferSGIX pbuffer, DMparams *params, DMbuffer dmbuffer)
+{
+ (void) dpy;
+ (void) pbuffer;
+ (void) params;
+ (void) dmbuffer;
+ return False;
+}
+#endif
+
+
+/*** GLX_SGIX_swap_group ***/
+
+void
+glXJoinSwapGroupSGIX(Display *dpy, GLXDrawable drawable, GLXDrawable member)
+{
+ (void) dpy;
+ (void) drawable;
+ (void) member;
+}
+
+
+
+/*** GLX_SGIX_swap_barrier ***/
+
+void
+glXBindSwapBarrierSGIX(Display *dpy, GLXDrawable drawable, int barrier)
+{
+ (void) dpy;
+ (void) drawable;
+ (void) barrier;
+}
+
+Bool
+glXQueryMaxSwapBarriersSGIX(Display *dpy, int screen, int *max)
+{
+ (void) dpy;
+ (void) screen;
+ (void) max;
+ return False;
+}
+
+
+
+/*** GLX_SUN_get_transparent_index ***/
+
+Status
+glXGetTransparentIndexSUN(Display *dpy, Window overlay, Window underlay, long *pTransparent)
+{
+ (void) dpy;
+ (void) overlay;
+ (void) underlay;
+ (void) pTransparent;
+ return 0;
+}
+
+
+
+/*** GLX_MESA_release_buffers ***/
+
+/*
+ * Release the depth, stencil, accum buffers attached to a GLXDrawable
+ * (a window or pixmap) prior to destroying the GLXDrawable.
+ */
+Bool
+glXReleaseBuffersMESA( Display *dpy, GLXDrawable d )
+{
+ XMesaBuffer b = XMesaFindBuffer(dpy, d);
+ if (b) {
+ XMesaDestroyBuffer(b);
+ return True;
+ }
+ return False;
+}
+
+/*** GLX_EXT_texture_from_pixmap ***/
+
+void
+glXBindTexImageEXT(Display *dpy, GLXDrawable drawable, int buffer,
+ const int *attrib_list)
+{
+ XMesaBuffer b = XMesaFindBuffer(dpy, drawable);
+ if (b)
+ XMesaBindTexImage(dpy, b, buffer, attrib_list);
+}
+
+void
+glXReleaseTexImageEXT(Display *dpy, GLXDrawable drawable, int buffer)
+{
+ XMesaBuffer b = XMesaFindBuffer(dpy, drawable);
+ if (b)
+ XMesaReleaseTexImage(dpy, b, buffer);
+}
projects / mesa.git / commitdiff