Gitiles
Code Review Sign In
gerrit-public.fairphone.software / platform / external / mesa3d / dfc84c2296891858ef9d12800ae778063b76c05a / . / src / glx / glxcmds.c
blob: 7266b58652e96e5d5b24f7de61ceda3b9f663d0c [file] [log] [blame]
/*
* SGI FREE SOFTWARE LICENSE B (Version 2.0, Sept. 18, 2008)
* Copyright (C) 1991-2000 Silicon Graphics, 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 including the dates of first publication and
* either this permission notice or a reference to
* http://oss.sgi.com/projects/FreeB/
* 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
* SILICON GRAPHICS, INC. 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.
*
* Except as contained in this notice, the name of Silicon Graphics, Inc.
* shall not be used in advertising or otherwise to promote the sale, use or
* other dealings in this Software without prior written authorization from
* Silicon Graphics, Inc.
*/
/**
* \file glxcmds.c
* Client-side GLX interface.
*/
#include "glxclient.h"
#include "glapi.h"
#include "glxextensions.h"
#include "indirect.h"
#include "glx_error.h"
#ifdef GLX_DIRECT_RENDERING
#ifdef GLX_USE_APPLEGL
#include "apple/apple_glx_context.h"
#include "apple/apple_glx.h"
#else
#include <sys/time.h>
#ifdef XF86VIDMODE
#include <X11/extensions/xf86vmode.h>
#endif
#endif
#endif
#include <X11/Xlib-xcb.h>
#include <xcb/xcb.h>
#include <xcb/glx.h>
#include "GL/mesa_glinterop.h"
static const char __glXGLXClientVendorName[] = "Mesa Project and SGI";
static const char __glXGLXClientVersion[] = "1.4";
#if defined(GLX_DIRECT_RENDERING) && !defined(GLX_USE_APPLEGL)
/**
* Get the __DRIdrawable for the drawable associated with a GLXContext
*
* \param dpy The display associated with \c drawable.
* \param drawable GLXDrawable whose __DRIdrawable part is to be retrieved.
* \param scrn_num If non-NULL, the drawables screen is stored there
* \returns A pointer to the context's __DRIdrawable on success, or NULL if
* the drawable is not associated with a direct-rendering context.
*/
_X_HIDDEN __GLXDRIdrawable *
GetGLXDRIDrawable(Display * dpy, GLXDrawable drawable)
{
struct glx_display *priv = __glXInitialize(dpy);
__GLXDRIdrawable *pdraw;
if (priv == NULL)
return NULL;
if (__glxHashLookup(priv->drawHash, drawable, (void *) &pdraw) == 0)
return pdraw;
return NULL;
}
#endif
_X_HIDDEN struct glx_drawable *
GetGLXDrawable(Display *dpy, GLXDrawable drawable)
{
struct glx_display *priv = __glXInitialize(dpy);
struct glx_drawable *glxDraw;
if (priv == NULL)
return NULL;
if (__glxHashLookup(priv->glXDrawHash, drawable, (void *) &glxDraw) == 0)
return glxDraw;
return NULL;
}
_X_HIDDEN int
InitGLXDrawable(Display *dpy, struct glx_drawable *glxDraw, XID xDrawable,
GLXDrawable drawable)
{
struct glx_display *priv = __glXInitialize(dpy);
if (!priv)
return -1;
glxDraw->xDrawable = xDrawable;
glxDraw->drawable = drawable;
glxDraw->lastEventSbc = 0;
glxDraw->eventSbcWrap = 0;
return __glxHashInsert(priv->glXDrawHash, drawable, glxDraw);
}
_X_HIDDEN void
DestroyGLXDrawable(Display *dpy, GLXDrawable drawable)
{
struct glx_display *priv = __glXInitialize(dpy);
struct glx_drawable *glxDraw;
if (!priv)
return;
glxDraw = GetGLXDrawable(dpy, drawable);
__glxHashDelete(priv->glXDrawHash, drawable);
free(glxDraw);
}
/**
* Get the GLX per-screen data structure associated with a GLX context.
*
* \param dpy Display for which the GLX per-screen information is to be
* retrieved.
* \param scrn Screen on \c dpy for which the GLX per-screen information is
* to be retrieved.
* \returns A pointer to the GLX per-screen data if \c dpy and \c scrn
* specify a valid GLX screen, or NULL otherwise.
*
* \todo Should this function validate that \c scrn is within the screen
* number range for \c dpy?
*/
_X_HIDDEN struct glx_screen *
GetGLXScreenConfigs(Display * dpy, int scrn)
{
struct glx_display *const priv = __glXInitialize(dpy);
return (priv
&& priv->screens !=
NULL) ? priv->screens[scrn] : NULL;
}
static int
GetGLXPrivScreenConfig(Display * dpy, int scrn, struct glx_display ** ppriv,
struct glx_screen ** ppsc)
{
/* Initialize the extension, if needed . This has the added value
* of initializing/allocating the display private
*/
if (dpy == NULL) {
return GLX_NO_EXTENSION;
}
*ppriv = __glXInitialize(dpy);
if (*ppriv == NULL) {
return GLX_NO_EXTENSION;
}
/* Check screen number to see if its valid */
if ((scrn < 0) || (scrn >= ScreenCount(dpy))) {
return GLX_BAD_SCREEN;
}
/* Check to see if the GL is supported on this screen */
*ppsc = (*ppriv)->screens[scrn];
if ((*ppsc)->configs == NULL && (*ppsc)->visuals == NULL) {
/* No support for GL on this screen regardless of visual */
return GLX_BAD_VISUAL;
}
return Success;
}
/**
* Determine if a \c GLXFBConfig supplied by the application is valid.
*
* \param dpy Application supplied \c Display pointer.
* \param config Application supplied \c GLXFBConfig.
*
* \returns If the \c GLXFBConfig is valid, the a pointer to the matching
* \c struct glx_config structure is returned. Otherwise, \c NULL
* is returned.
*/
static struct glx_config *
ValidateGLXFBConfig(Display * dpy, GLXFBConfig fbconfig)
{
struct glx_display *const priv = __glXInitialize(dpy);
int num_screens = ScreenCount(dpy);
unsigned i;
struct glx_config *config;
if (priv != NULL) {
for (i = 0; i < num_screens; i++) {
for (config = priv->screens[i]->configs; config != NULL;
config = config->next) {
if (config == (struct glx_config *) fbconfig) {
return config;
}
}
}
}
return NULL;
}
/**
* Verifies context's GLX_RENDER_TYPE value with config.
*
* \param config GLX FBConfig which will support the returned renderType.
* \param renderType The context render type to be verified.
* \return True if the value of context renderType was approved, or 0 if no
* valid value was found.
*/
Bool
validate_renderType_against_config(const struct glx_config *config,
int renderType)
{
switch (renderType) {
case GLX_RGBA_TYPE:
return (config->renderType & GLX_RGBA_BIT) != 0;
case GLX_COLOR_INDEX_TYPE:
return (config->renderType & GLX_COLOR_INDEX_BIT) != 0;
case GLX_RGBA_FLOAT_TYPE_ARB:
return (config->renderType & GLX_RGBA_FLOAT_BIT_ARB) != 0;
case GLX_RGBA_UNSIGNED_FLOAT_TYPE_EXT:
return (config->renderType & GLX_RGBA_UNSIGNED_FLOAT_BIT_EXT) != 0;
default:
break;
}
return 0;
}
_X_HIDDEN Bool
glx_context_init(struct glx_context *gc,
struct glx_screen *psc, struct glx_config *config)
{
gc->majorOpcode = __glXSetupForCommand(psc->display->dpy);
if (!gc->majorOpcode)
return False;
gc->screen = psc->scr;
gc->psc = psc;
gc->config = config;
gc->isDirect = GL_TRUE;
gc->currentContextTag = -1;
return True;
}
/**
* Create a new context.
*
* \param renderType For FBConfigs, what is the rendering type?
*/
static GLXContext
CreateContext(Display *dpy, int generic_id, struct glx_config *config,
GLXContext shareList_user, Bool allowDirect,
unsigned code, int renderType, int screen)
{
struct glx_context *gc;
struct glx_screen *psc;
struct glx_context *shareList = (struct glx_context *) shareList_user;
if (dpy == NULL)
return NULL;
psc = GetGLXScreenConfigs(dpy, screen);
if (psc == NULL)
return NULL;
if (generic_id == None)
return NULL;
gc = NULL;
#ifdef GLX_USE_APPLEGL
gc = applegl_create_context(psc, config, shareList, renderType);
#else
if (allowDirect && psc->vtable->create_context)
gc = psc->vtable->create_context(psc, config, shareList, renderType);
if (!gc)
gc = indirect_create_context(psc, config, shareList, renderType);
#endif
if (!gc)
return NULL;
LockDisplay(dpy);
switch (code) {
case X_GLXCreateContext: {
xGLXCreateContextReq *req;
/* Send the glXCreateContext request */
GetReq(GLXCreateContext, req);
req->reqType = gc->majorOpcode;
req->glxCode = X_GLXCreateContext;
req->context = gc->xid = XAllocID(dpy);
req->visual = generic_id;
req->screen = screen;
req->shareList = shareList ? shareList->xid : None;
req->isDirect = gc->isDirect;
break;
}
case X_GLXCreateNewContext: {
xGLXCreateNewContextReq *req;
/* Send the glXCreateNewContext request */
GetReq(GLXCreateNewContext, req);
req->reqType = gc->majorOpcode;
req->glxCode = X_GLXCreateNewContext;
req->context = gc->xid = XAllocID(dpy);
req->fbconfig = generic_id;
req->screen = screen;
req->renderType = renderType;
req->shareList = shareList ? shareList->xid : None;
req->isDirect = gc->isDirect;
break;
}
case X_GLXvop_CreateContextWithConfigSGIX: {
xGLXVendorPrivateWithReplyReq *vpreq;
xGLXCreateContextWithConfigSGIXReq *req;
/* Send the glXCreateNewContext request */
GetReqExtra(GLXVendorPrivateWithReply,
sz_xGLXCreateContextWithConfigSGIXReq -
sz_xGLXVendorPrivateWithReplyReq, vpreq);
req = (xGLXCreateContextWithConfigSGIXReq *) vpreq;
req->reqType = gc->majorOpcode;
req->glxCode = X_GLXVendorPrivateWithReply;
req->vendorCode = X_GLXvop_CreateContextWithConfigSGIX;
req->context = gc->xid = XAllocID(dpy);
req->fbconfig = generic_id;
req->screen = screen;
req->renderType = renderType;
req->shareList = shareList ? shareList->xid : None;
req->isDirect = gc->isDirect;
break;
}
default:
/* What to do here? This case is the sign of an internal error. It
* should never be reachable.
*/
break;
}
UnlockDisplay(dpy);
SyncHandle();
gc->share_xid = shareList ? shareList->xid : None;
gc->imported = GL_FALSE;
return (GLXContext) gc;
}
_GLX_PUBLIC GLXContext
glXCreateContext(Display * dpy, XVisualInfo * vis,
GLXContext shareList, Bool allowDirect)
{
struct glx_config *config = NULL;
int renderType = GLX_RGBA_TYPE;
#if defined(GLX_DIRECT_RENDERING) || defined(GLX_USE_APPLEGL)
struct glx_screen *const psc = GetGLXScreenConfigs(dpy, vis->screen);
if (psc)
config = glx_config_find_visual(psc->visuals, vis->visualid);
if (config == NULL) {
xError error;
error.errorCode = BadValue;
error.resourceID = vis->visualid;
error.sequenceNumber = dpy->request;
error.type = X_Error;
error.majorCode = __glXSetupForCommand(dpy);
error.minorCode = X_GLXCreateContext;
_XError(dpy, &error);
return None;
}
/* Choose the context render type based on DRI config values. It is
* unusual to set this type from config, but we have no other choice, as
* this old API does not provide renderType parameter.
*/
if (config->renderType & GLX_RGBA_FLOAT_BIT_ARB) {
renderType = GLX_RGBA_FLOAT_TYPE_ARB;
} else if (config->renderType & GLX_RGBA_UNSIGNED_FLOAT_BIT_EXT) {
renderType = GLX_RGBA_UNSIGNED_FLOAT_TYPE_EXT;
} else if (config->renderType & GLX_RGBA_BIT) {
renderType = GLX_RGBA_TYPE;
} else if (config->renderType & GLX_COLOR_INDEX_BIT) {
renderType = GLX_COLOR_INDEX_TYPE;
} else if (config->rgbMode) {
/* If we're here, then renderType is not set correctly. Let's use a
* safeguard - any TrueColor or DirectColor mode is RGB mode. Such
* default value is needed by old DRI drivers, which didn't set
* renderType correctly as the value was just ignored.
*/
renderType = GLX_RGBA_TYPE;
} else {
/* Safeguard - only one option left, all non-RGB modes are indexed
* modes. Again, this allows drivers with invalid renderType to work
* properly.
*/
renderType = GLX_COLOR_INDEX_TYPE;
}
#endif
return CreateContext(dpy, vis->visualid, config, shareList, allowDirect,
X_GLXCreateContext, renderType, vis->screen);
}
static void
glx_send_destroy_context(Display *dpy, XID xid)
{
CARD8 opcode = __glXSetupForCommand(dpy);
xGLXDestroyContextReq *req;
LockDisplay(dpy);
GetReq(GLXDestroyContext, req);
req->reqType = opcode;
req->glxCode = X_GLXDestroyContext;
req->context = xid;
UnlockDisplay(dpy);
SyncHandle();
}
/*
** Destroy the named context
*/
_GLX_PUBLIC void
glXDestroyContext(Display * dpy, GLXContext ctx)
{
struct glx_context *gc = (struct glx_context *) ctx;
if (gc == NULL || gc->xid == None)
return;
__glXLock();
if (!gc->imported)
glx_send_destroy_context(dpy, gc->xid);
if (gc->currentDpy) {
/* This context is bound to some thread. According to the man page,
* we should not actually delete the context until it's unbound.
* Note that we set gc->xid = None above. In MakeContextCurrent()
* we check for that and delete the context there.
*/
gc->xid = None;
} else {
gc->vtable->destroy(gc);
}
__glXUnlock();
}
/*
** Return the major and minor version #s for the GLX extension
*/
_GLX_PUBLIC Bool
glXQueryVersion(Display * dpy, int *major, int *minor)
{
struct glx_display *priv;
/* Init the extension. This fetches the major and minor version. */
priv = __glXInitialize(dpy);
if (!priv)
return False;
if (major)
*major = priv->majorVersion;
if (minor)
*minor = priv->minorVersion;
return True;
}
/*
** Query the existence of the GLX extension
*/
_GLX_PUBLIC Bool
glXQueryExtension(Display * dpy, int *errorBase, int *eventBase)
{
int major_op, erb, evb;
Bool rv;
rv = XQueryExtension(dpy, GLX_EXTENSION_NAME, &major_op, &evb, &erb);
if (rv) {
if (errorBase)
*errorBase = erb;
if (eventBase)
*eventBase = evb;
}
return rv;
}
/*
** Put a barrier in the token stream that forces the GL to finish its
** work before X can proceed.
*/
_GLX_PUBLIC void
glXWaitGL(void)
{
struct glx_context *gc = __glXGetCurrentContext();
if (gc != &dummyContext && gc->vtable->wait_gl)
gc->vtable->wait_gl(gc);
}
/*
** Put a barrier in the token stream that forces X to finish its
** work before GL can proceed.
*/
_GLX_PUBLIC void
glXWaitX(void)
{
struct glx_context *gc = __glXGetCurrentContext();
if (gc != &dummyContext && gc->vtable->wait_x)
gc->vtable->wait_x(gc);
}
_GLX_PUBLIC void
glXUseXFont(Font font, int first, int count, int listBase)
{
struct glx_context *gc = __glXGetCurrentContext();
if (gc != &dummyContext && gc->vtable->use_x_font)
gc->vtable->use_x_font(gc, font, first, count, listBase);
}
/************************************************************************/
/*
** Copy the source context to the destination context using the
** attribute "mask".
*/
_GLX_PUBLIC void
glXCopyContext(Display * dpy, GLXContext source_user,
GLXContext dest_user, unsigned long mask)
{
struct glx_context *source = (struct glx_context *) source_user;
struct glx_context *dest = (struct glx_context *) dest_user;
#ifdef GLX_USE_APPLEGL
struct glx_context *gc = __glXGetCurrentContext();
int errorcode;
bool x11error;
if(apple_glx_copy_context(gc->driContext, source->driContext, dest->driContext,
mask, &errorcode, &x11error)) {
__glXSendError(dpy, errorcode, 0, X_GLXCopyContext, x11error);
}
#else
xGLXCopyContextReq *req;
struct glx_context *gc = __glXGetCurrentContext();
GLXContextTag tag;
CARD8 opcode;
opcode = __glXSetupForCommand(dpy);
if (!opcode) {
return;
}
#if defined(GLX_DIRECT_RENDERING) && !defined(GLX_USE_APPLEGL)
if (gc->isDirect) {
/* NOT_DONE: This does not work yet */
}
#endif
/*
** If the source is the current context, send its tag so that the context
** can be flushed before the copy.
*/
if (source == gc && dpy == gc->currentDpy) {
tag = gc->currentContextTag;
}
else {
tag = 0;
}
/* Send the glXCopyContext request */
LockDisplay(dpy);
GetReq(GLXCopyContext, req);
req->reqType = opcode;
req->glxCode = X_GLXCopyContext;
req->source = source ? source->xid : None;
req->dest = dest ? dest->xid : None;
req->mask = mask;
req->contextTag = tag;
UnlockDisplay(dpy);
SyncHandle();
#endif /* GLX_USE_APPLEGL */
}
/**
* Determine if a context uses direct rendering.
*
* \param dpy Display where the context was created.
* \param contextID ID of the context to be tested.
*
* \returns \c True if the context is direct rendering or not.
*/
static Bool
__glXIsDirect(Display * dpy, GLXContextID contextID)
{
CARD8 opcode;
xcb_connection_t *c;
xcb_generic_error_t *err;
xcb_glx_is_direct_reply_t *reply;
Bool is_direct;
opcode = __glXSetupForCommand(dpy);
if (!opcode) {
return False;
}
c = XGetXCBConnection(dpy);
reply = xcb_glx_is_direct_reply(c, xcb_glx_is_direct(c, contextID), &err);
is_direct = (reply != NULL && reply->is_direct) ? True : False;
if (err != NULL) {
__glXSendErrorForXcb(dpy, err);
free(err);
}
free(reply);
return is_direct;
}
/**
* \todo
* Shouldn't this function \b always return \c False when
* \c GLX_DIRECT_RENDERING is not defined? Do we really need to bother with
* the GLX protocol here at all?
*/
_GLX_PUBLIC Bool
glXIsDirect(Display * dpy, GLXContext gc_user)
{
struct glx_context *gc = (struct glx_context *) gc_user;
if (!gc) {
return False;
}
else if (gc->isDirect) {
return True;
}
#ifdef GLX_USE_APPLEGL /* TODO: indirect on darwin */
return False;
#else
return __glXIsDirect(dpy, gc->xid);
#endif
}
_GLX_PUBLIC GLXPixmap
glXCreateGLXPixmap(Display * dpy, XVisualInfo * vis, Pixmap pixmap)
{
#ifdef GLX_USE_APPLEGL
int screen = vis->screen;
struct glx_screen *const psc = GetGLXScreenConfigs(dpy, screen);
const struct glx_config *config;
config = glx_config_find_visual(psc->visuals, vis->visualid);
if(apple_glx_pixmap_create(dpy, vis->screen, pixmap, config))
return None;
return pixmap;
#else
xGLXCreateGLXPixmapReq *req;
struct glx_drawable *glxDraw;
GLXPixmap xid;
CARD8 opcode;
#if defined(GLX_DIRECT_RENDERING) && !defined(GLX_USE_APPLEGL)
struct glx_display *const priv = __glXInitialize(dpy);
if (priv == NULL)
return None;
#endif
opcode = __glXSetupForCommand(dpy);
if (!opcode) {
return None;
}
glxDraw = malloc(sizeof(*glxDraw));
if (!glxDraw)
return None;
/* Send the glXCreateGLXPixmap request */
LockDisplay(dpy);
GetReq(GLXCreateGLXPixmap, req);
req->reqType = opcode;
req->glxCode = X_GLXCreateGLXPixmap;
req->screen = vis->screen;
req->visual = vis->visualid;
req->pixmap = pixmap;
req->glxpixmap = xid = XAllocID(dpy);
UnlockDisplay(dpy);
SyncHandle();
if (InitGLXDrawable(dpy, glxDraw, pixmap, req->glxpixmap)) {
free(glxDraw);
return None;
}
#if defined(GLX_DIRECT_RENDERING) && !defined(GLX_USE_APPLEGL)
do {
/* FIXME: Maybe delay __DRIdrawable creation until the drawable
* is actually bound to a context... */
__GLXDRIdrawable *pdraw;
struct glx_screen *psc;
struct glx_config *config;
psc = priv->screens[vis->screen];
if (psc->driScreen == NULL)
return xid;
config = glx_config_find_visual(psc->visuals, vis->visualid);
pdraw = psc->driScreen->createDrawable(psc, pixmap, xid, config);
if (pdraw == NULL) {
fprintf(stderr, "failed to create pixmap\n");
xid = None;
break;
}
if (__glxHashInsert(priv->drawHash, xid, pdraw)) {
(*pdraw->destroyDrawable) (pdraw);
xid = None;
break;
}
} while (0);
if (xid == None) {
xGLXDestroyGLXPixmapReq *dreq;
LockDisplay(dpy);
GetReq(GLXDestroyGLXPixmap, dreq);
dreq->reqType = opcode;
dreq->glxCode = X_GLXDestroyGLXPixmap;
dreq->glxpixmap = xid;
UnlockDisplay(dpy);
SyncHandle();
}
#endif
return xid;
#endif
}
/*
** Destroy the named pixmap
*/
_GLX_PUBLIC void
glXDestroyGLXPixmap(Display * dpy, GLXPixmap glxpixmap)
{
#ifdef GLX_USE_APPLEGL
if(apple_glx_pixmap_destroy(dpy, glxpixmap))
__glXSendError(dpy, GLXBadPixmap, glxpixmap, X_GLXDestroyPixmap, false);
#else
xGLXDestroyGLXPixmapReq *req;
CARD8 opcode;
opcode = __glXSetupForCommand(dpy);
if (!opcode) {
return;
}
/* Send the glXDestroyGLXPixmap request */
LockDisplay(dpy);
GetReq(GLXDestroyGLXPixmap, req);
req->reqType = opcode;
req->glxCode = X_GLXDestroyGLXPixmap;
req->glxpixmap = glxpixmap;
UnlockDisplay(dpy);
SyncHandle();
DestroyGLXDrawable(dpy, glxpixmap);
#if defined(GLX_DIRECT_RENDERING) && !defined(GLX_USE_APPLEGL)
{
struct glx_display *const priv = __glXInitialize(dpy);
__GLXDRIdrawable *pdraw = GetGLXDRIDrawable(dpy, glxpixmap);
if (priv != NULL && pdraw != NULL) {
(*pdraw->destroyDrawable) (pdraw);
__glxHashDelete(priv->drawHash, glxpixmap);
}
}
#endif
#endif /* GLX_USE_APPLEGL */
}
_GLX_PUBLIC void
glXSwapBuffers(Display * dpy, GLXDrawable drawable)
{
#ifdef GLX_USE_APPLEGL
struct glx_context * gc = __glXGetCurrentContext();
if(gc != &DummyContext && apple_glx_is_current_drawable(dpy, gc->driContext, drawable)) {
apple_glx_swap_buffers(gc->driContext);
} else {
__glXSendError(dpy, GLXBadCurrentWindow, 0, X_GLXSwapBuffers, false);
}
#else
struct glx_context *gc;
GLXContextTag tag;
CARD8 opcode;
xcb_connection_t *c;
gc = __glXGetCurrentContext();
#if defined(GLX_DIRECT_RENDERING) && !defined(GLX_USE_APPLEGL)
{
__GLXDRIdrawable *pdraw = GetGLXDRIDrawable(dpy, drawable);
if (pdraw != NULL) {
Bool flush = gc != &dummyContext && drawable == gc->currentDrawable;
(*pdraw->psc->driScreen->swapBuffers)(pdraw, 0, 0, 0, flush);
return;
}
}
#endif
opcode = __glXSetupForCommand(dpy);
if (!opcode) {
return;
}
/*
** The calling thread may or may not have a current context. If it
** does, send the context tag so the server can do a flush.
*/
if ((gc != &dummyContext) && (dpy == gc->currentDpy) &&
((drawable == gc->currentDrawable)
|| (drawable == gc->currentReadable))) {
tag = gc->currentContextTag;
}
else {
tag = 0;
}
c = XGetXCBConnection(dpy);
xcb_glx_swap_buffers(c, tag, drawable);
xcb_flush(c);
#endif /* GLX_USE_APPLEGL */
}
/*
** Return configuration information for the given display, screen and
** visual combination.
*/
_GLX_PUBLIC int
glXGetConfig(Display * dpy, XVisualInfo * vis, int attribute,
int *value_return)
{
struct glx_display *priv;
struct glx_screen *psc;
struct glx_config *config;
int status;
status = GetGLXPrivScreenConfig(dpy, vis->screen, &priv, &psc);
if (status == Success) {
config = glx_config_find_visual(psc->visuals, vis->visualid);
/* Lookup attribute after first finding a match on the visual */
if (config != NULL) {
return glx_config_get(config, attribute, value_return);
}
status = GLX_BAD_VISUAL;
}
/*
** If we can't find the config for this visual, this visual is not
** supported by the OpenGL implementation on the server.
*/
if ((status == GLX_BAD_VISUAL) && (attribute == GLX_USE_GL)) {
*value_return = False;
status = Success;
}
return status;
}
/************************************************************************/
static void
init_fbconfig_for_chooser(struct glx_config * config,
GLboolean fbconfig_style_tags)
{
memset(config, 0, sizeof(struct glx_config));
config->visualID = (XID) GLX_DONT_CARE;
config->visualType = GLX_DONT_CARE;
/* glXChooseFBConfig specifies different defaults for these properties than
* glXChooseVisual.
*/
if (fbconfig_style_tags) {
config->rgbMode = GL_TRUE;
config->doubleBufferMode = GLX_DONT_CARE;
config->renderType = GLX_RGBA_BIT;
}
config->drawableType = GLX_WINDOW_BIT;
config->visualRating = GLX_DONT_CARE;
config->transparentPixel = GLX_NONE;
config->transparentRed = GLX_DONT_CARE;
config->transparentGreen = GLX_DONT_CARE;
config->transparentBlue = GLX_DONT_CARE;
config->transparentAlpha = GLX_DONT_CARE;
config->transparentIndex = GLX_DONT_CARE;
config->xRenderable = GLX_DONT_CARE;
config->fbconfigID = (GLXFBConfigID) (GLX_DONT_CARE);
config->swapMethod = GLX_DONT_CARE;
}
#define MATCH_DONT_CARE( param ) \
do { \
if ( ((int) a-> param != (int) GLX_DONT_CARE) \
&& (a-> param != b-> param) ) { \
return False; \
} \
} while ( 0 )
#define MATCH_MINIMUM( param ) \
do { \
if ( ((int) a-> param != (int) GLX_DONT_CARE) \
&& (a-> param > b-> param) ) { \
return False; \
} \
} while ( 0 )
#define MATCH_EXACT( param ) \
do { \
if ( a-> param != b-> param) { \
return False; \
} \
} while ( 0 )
/* Test that all bits from a are contained in b */
#define MATCH_MASK(param) \
do { \
if ( ((int) a-> param != (int) GLX_DONT_CARE) \
&& ((a->param & ~b->param) != 0) ) { \
return False; \
} \
} while (0);
/**
* Determine if two GLXFBConfigs are compatible.
*
* \param a Application specified config to test.
* \param b Server specified config to test against \c a.
*/
static Bool
fbconfigs_compatible(const struct glx_config * const a,
const struct glx_config * const b)
{
MATCH_DONT_CARE(doubleBufferMode);
MATCH_DONT_CARE(visualType);
MATCH_DONT_CARE(visualRating);
MATCH_DONT_CARE(xRenderable);
MATCH_DONT_CARE(fbconfigID);
MATCH_DONT_CARE(swapMethod);
MATCH_MINIMUM(rgbBits);
MATCH_MINIMUM(numAuxBuffers);
MATCH_MINIMUM(redBits);
MATCH_MINIMUM(greenBits);
MATCH_MINIMUM(blueBits);
MATCH_MINIMUM(alphaBits);
MATCH_MINIMUM(depthBits);
MATCH_MINIMUM(stencilBits);
MATCH_MINIMUM(accumRedBits);
MATCH_MINIMUM(accumGreenBits);
MATCH_MINIMUM(accumBlueBits);
MATCH_MINIMUM(accumAlphaBits);
MATCH_MINIMUM(sampleBuffers);
MATCH_MINIMUM(maxPbufferWidth);
MATCH_MINIMUM(maxPbufferHeight);
MATCH_MINIMUM(maxPbufferPixels);
MATCH_MINIMUM(samples);
MATCH_DONT_CARE(stereoMode);
MATCH_EXACT(level);
MATCH_MASK(drawableType);
MATCH_MASK(renderType);
/* There is a bug in a few of the XFree86 DDX drivers. They contain
* visuals with a "transparent type" of 0 when they really mean GLX_NONE.
* Technically speaking, it is a bug in the DDX driver, but there is
* enough of an installed base to work around the problem here. In any
* case, 0 is not a valid value of the transparent type, so we'll treat 0
* from the app as GLX_DONT_CARE. We'll consider GLX_NONE from the app and
* 0 from the server to be a match to maintain backward compatibility with
* the (broken) drivers.
*/
if (a->transparentPixel != (int) GLX_DONT_CARE && a->transparentPixel != 0) {
if (a->transparentPixel == GLX_NONE) {
if (b->transparentPixel != GLX_NONE && b->transparentPixel != 0)
return False;
}
else {
MATCH_EXACT(transparentPixel);
}
switch (a->transparentPixel) {
case GLX_TRANSPARENT_RGB:
MATCH_DONT_CARE(transparentRed);
MATCH_DONT_CARE(transparentGreen);
MATCH_DONT_CARE(transparentBlue);
MATCH_DONT_CARE(transparentAlpha);
break;
case GLX_TRANSPARENT_INDEX:
MATCH_DONT_CARE(transparentIndex);
break;
default:
break;
}
}
return True;
}
/* There's some trickly language in the GLX spec about how this is supposed
* to work. Basically, if a given component size is either not specified
* or the requested size is zero, it is supposed to act like PERFER_SMALLER.
* Well, that's really hard to do with the code as-is. This behavior is
* closer to correct, but still not technically right.
*/
#define PREFER_LARGER_OR_ZERO(comp) \
do { \
if ( ((*a)-> comp) != ((*b)-> comp) ) { \
if ( ((*a)-> comp) == 0 ) { \
return -1; \
} \
else if ( ((*b)-> comp) == 0 ) { \
return 1; \
} \
else { \
return ((*b)-> comp) - ((*a)-> comp) ; \
} \
} \
} while( 0 )
#define PREFER_LARGER(comp) \
do { \
if ( ((*a)-> comp) != ((*b)-> comp) ) { \
return ((*b)-> comp) - ((*a)-> comp) ; \
} \
} while( 0 )
#define PREFER_SMALLER(comp) \
do { \
if ( ((*a)-> comp) != ((*b)-> comp) ) { \
return ((*a)-> comp) - ((*b)-> comp) ; \
} \
} while( 0 )
/**
* Compare two GLXFBConfigs. This function is intended to be used as the
* compare function passed in to qsort.
*
* \returns If \c a is a "better" config, according to the specification of
* SGIX_fbconfig, a number less than zero is returned. If \c b is
* better, then a number greater than zero is return. If both are
* equal, zero is returned.
* \sa qsort, glXChooseVisual, glXChooseFBConfig, glXChooseFBConfigSGIX
*/
static int
fbconfig_compare(struct glx_config **a, struct glx_config **b)
{
/* The order of these comparisons must NOT change. It is defined by
* the GLX 1.4 specification.
*/
PREFER_SMALLER(visualSelectGroup);
/* The sort order for the visualRating is GLX_NONE, GLX_SLOW, and
* GLX_NON_CONFORMANT_CONFIG. It just so happens that this is the
* numerical sort order of the enums (0x8000, 0x8001, and 0x800D).
*/
PREFER_SMALLER(visualRating);
/* This isn't quite right. It is supposed to compare the sum of the
* components the user specifically set minimums for.
*/
PREFER_LARGER_OR_ZERO(redBits);
PREFER_LARGER_OR_ZERO(greenBits);
PREFER_LARGER_OR_ZERO(blueBits);
PREFER_LARGER_OR_ZERO(alphaBits);
PREFER_SMALLER(rgbBits);
if (((*a)->doubleBufferMode != (*b)->doubleBufferMode)) {
/* Prefer single-buffer.
*/
return (!(*a)->doubleBufferMode) ? -1 : 1;
}
PREFER_SMALLER(numAuxBuffers);
PREFER_SMALLER(sampleBuffers);
PREFER_SMALLER(samples);
PREFER_LARGER_OR_ZERO(depthBits);
PREFER_SMALLER(stencilBits);
/* This isn't quite right. It is supposed to compare the sum of the
* components the user specifically set minimums for.
*/
PREFER_LARGER_OR_ZERO(accumRedBits);
PREFER_LARGER_OR_ZERO(accumGreenBits);
PREFER_LARGER_OR_ZERO(accumBlueBits);
PREFER_LARGER_OR_ZERO(accumAlphaBits);
PREFER_SMALLER(visualType);
/* None of the pbuffer or fbconfig specs say that this comparison needs
* to happen at all, but it seems like it should.
*/
PREFER_LARGER(maxPbufferWidth);
PREFER_LARGER(maxPbufferHeight);
PREFER_LARGER(maxPbufferPixels);
return 0;
}
/**
* Selects and sorts a subset of the supplied configs based on the attributes.
* This function forms to basis of \c glXChooseFBConfig and
* \c glXChooseFBConfigSGIX.
*
* \param configs Array of pointers to possible configs. The elements of
* this array that do not meet the criteria will be set to
* NULL. The remaining elements will be sorted according to
* the various visual / FBConfig selection rules.
* \param num_configs Number of elements in the \c configs array.
* \param attribList Attributes used select from \c configs. This array is
* terminated by a \c None tag. The array is of the form
* expected by \c glXChooseFBConfig (where every tag has a
* value).
* \returns The number of valid elements left in \c configs.
*
* \sa glXChooseFBConfig, glXChooseFBConfigSGIX
*/
static int
choose_fbconfig(struct glx_config ** configs, int num_configs,
const int *attribList)
{
struct glx_config test_config;
int base;
int i;
/* This is a fairly direct implementation of the selection method
* described by GLX_SGIX_fbconfig. Start by culling out all the
* configs that are not compatible with the selected parameter
* list.
*/
init_fbconfig_for_chooser(&test_config, GL_TRUE);
__glXInitializeVisualConfigFromTags(&test_config, 512,
(const INT32 *) attribList,
GL_TRUE, GL_TRUE);
base = 0;
for (i = 0; i < num_configs; i++) {
if (fbconfigs_compatible(&test_config, configs[i])) {
configs[base] = configs[i];
base++;
}
}
if (base == 0) {
return 0;
}
if (base < num_configs) {
(void) memset(&configs[base], 0, sizeof(void *) * (num_configs - base));
}
/* After the incompatible configs are removed, the resulting
* list is sorted according to the rules set out in the various
* specifications.
*/
qsort(configs, base, sizeof(struct glx_config *),
(int (*)(const void *, const void *)) fbconfig_compare);
return base;
}
/*
** Return the visual that best matches the template. Return None if no
** visual matches the template.
*/
_GLX_PUBLIC XVisualInfo *
glXChooseVisual(Display * dpy, int screen, int *attribList)
{
XVisualInfo *visualList = NULL;
struct glx_display *priv;
struct glx_screen *psc;
struct glx_config test_config;
struct glx_config *config;
struct glx_config *best_config = NULL;
/*
** Get a list of all visuals, return if list is empty
*/
if (GetGLXPrivScreenConfig(dpy, screen, &priv, &psc) != Success) {
return None;
}
/*
** Build a template from the defaults and the attribute list
** Free visual list and return if an unexpected token is encountered
*/
init_fbconfig_for_chooser(&test_config, GL_FALSE);
__glXInitializeVisualConfigFromTags(&test_config, 512,
(const INT32 *) attribList,
GL_TRUE, GL_FALSE);
/*
** Eliminate visuals that don't meet minimum requirements
** Compute a score for those that do
** Remember which visual, if any, got the highest score
** If no visual is acceptable, return None
** Otherwise, create an XVisualInfo list with just the selected X visual
** and return this.
*/
for (config = psc->visuals; config != NULL; config = config->next) {
if (fbconfigs_compatible(&test_config, config)
&& ((best_config == NULL) ||
(fbconfig_compare (&config, &best_config) < 0))) {
XVisualInfo visualTemplate;
XVisualInfo *newList;
int i;
visualTemplate.screen = screen;
visualTemplate.visualid = config->visualID;
newList = XGetVisualInfo(dpy, VisualScreenMask | VisualIDMask,
&visualTemplate, &i);
if (newList) {
free(visualList);
visualList = newList;
best_config = config;
}
}
}
#ifdef GLX_USE_APPLEGL
if(visualList && getenv("LIBGL_DUMP_VISUALID")) {
printf("visualid 0x%lx\n", visualList[0].visualid);
}
#endif
return visualList;
}
_GLX_PUBLIC const char *
glXQueryExtensionsString(Display * dpy, int screen)
{
struct glx_screen *psc;
struct glx_display *priv;
if (GetGLXPrivScreenConfig(dpy, screen, &priv, &psc) != Success) {
return NULL;
}
if (!psc->effectiveGLXexts) {
if (!psc->serverGLXexts) {
psc->serverGLXexts =
__glXQueryServerString(dpy, priv->majorOpcode, screen,
GLX_EXTENSIONS);
}
__glXCalculateUsableExtensions(psc,
#if defined(GLX_DIRECT_RENDERING) && !defined(GLX_USE_APPLEGL)
(psc->driScreen != NULL),
#else
GL_FALSE,
#endif
priv->minorVersion);
}
return psc->effectiveGLXexts;
}
_GLX_PUBLIC const char *
glXGetClientString(Display * dpy, int name)
{
(void) dpy;
switch (name) {
case GLX_VENDOR:
return (__glXGLXClientVendorName);
case GLX_VERSION:
return (__glXGLXClientVersion);
case GLX_EXTENSIONS:
return (__glXGetClientExtensions());
default:
return NULL;
}
}
_GLX_PUBLIC const char *
glXQueryServerString(Display * dpy, int screen, int name)
{
struct glx_screen *psc;
struct glx_display *priv;
const char **str;
if (GetGLXPrivScreenConfig(dpy, screen, &priv, &psc) != Success) {
return NULL;
}
switch (name) {
case GLX_VENDOR:
str = &priv->serverGLXvendor;
break;
case GLX_VERSION:
str = &priv->serverGLXversion;
break;
case GLX_EXTENSIONS:
str = &psc->serverGLXexts;
break;
default:
return NULL;
}
if (*str == NULL) {
*str = __glXQueryServerString(dpy, priv->majorOpcode, screen, name);
}
return *str;
}
/*
** EXT_import_context
*/
_GLX_PUBLIC Display *
glXGetCurrentDisplay(void)
{
struct glx_context *gc = __glXGetCurrentContext();
if (gc == &dummyContext)
return NULL;
return gc->currentDpy;
}
_GLX_PUBLIC
GLX_ALIAS(Display *, glXGetCurrentDisplayEXT, (void), (),
glXGetCurrentDisplay)
#ifndef GLX_USE_APPLEGL
_GLX_PUBLIC GLXContext
glXImportContextEXT(Display *dpy, GLXContextID contextID)
{
struct glx_display *priv = __glXInitialize(dpy);
struct glx_screen *psc = NULL;
xGLXQueryContextReply reply;
CARD8 opcode;
struct glx_context *ctx;
/* This GLX implementation knows about 5 different properties, so
* allow the server to send us one of each.
*/
int propList[5 * 2], *pProp, nPropListBytes;
int numProps;
int i, renderType;
XID share;
struct glx_config *mode;
uint32_t fbconfigID = 0;
uint32_t visualID = 0;
uint32_t screen = 0;
Bool got_screen = False;
if (priv == NULL)
return NULL;
/* The GLX_EXT_import_context spec says:
*
* "If <contextID> does not refer to a valid context, then a BadContext
* error is generated; if <contextID> refers to direct rendering
* context then no error is generated but glXImportContextEXT returns
* NULL."
*
* If contextID is None, generate BadContext on the client-side. Other
* sorts of invalid contexts will be detected by the server in the
* __glXIsDirect call.
*/
if (contextID == None) {
__glXSendError(dpy, GLXBadContext, contextID, X_GLXIsDirect, false);
return NULL;
}
if (__glXIsDirect(dpy, contextID))
return NULL;
opcode = __glXSetupForCommand(dpy);
if (!opcode)
return 0;
/* Send the glXQueryContextInfoEXT request */
LockDisplay(dpy);
if (priv->majorVersion > 1 || priv->minorVersion >= 3) {
xGLXQueryContextReq *req;
GetReq(GLXQueryContext, req);
req->reqType = opcode;
req->glxCode = X_GLXQueryContext;
req->context = contextID;
}
else {
xGLXVendorPrivateReq *vpreq;
xGLXQueryContextInfoEXTReq *req;
GetReqExtra(GLXVendorPrivate,
sz_xGLXQueryContextInfoEXTReq - sz_xGLXVendorPrivateReq,
vpreq);
req = (xGLXQueryContextInfoEXTReq *) vpreq;
req->reqType = opcode;
req->glxCode = X_GLXVendorPrivateWithReply;
req->vendorCode = X_GLXvop_QueryContextInfoEXT;
req->context = contextID;
}
_XReply(dpy, (xReply *) & reply, 0, False);
if (reply.n <= __GLX_MAX_CONTEXT_PROPS)
nPropListBytes = reply.n * 2 * sizeof propList[0];
else
nPropListBytes = 0;
_XRead(dpy, (char *) propList, nPropListBytes);
UnlockDisplay(dpy);
SyncHandle();
numProps = nPropListBytes / (2 * sizeof(propList[0]));
share = None;
mode = NULL;
renderType = GLX_RGBA_TYPE; /* By default, assume RGBA context */
pProp = propList;
for (i = 0, pProp = propList; i < numProps; i++, pProp += 2)
switch (pProp[0]) {
case GLX_SCREEN:
screen = pProp[1];
got_screen = True;
break;
case GLX_SHARE_CONTEXT_EXT:
share = pProp[1];
break;
case GLX_VISUAL_ID_EXT:
visualID = pProp[1];
break;
case GLX_FBCONFIG_ID:
fbconfigID = pProp[1];
break;
case GLX_RENDER_TYPE:
renderType = pProp[1];
break;
}
if (!got_screen)
return NULL;
psc = GetGLXScreenConfigs(dpy, screen);
if (psc == NULL)
return NULL;
if (fbconfigID != 0) {
mode = glx_config_find_fbconfig(psc->configs, fbconfigID);
} else if (visualID != 0) {
mode = glx_config_find_visual(psc->visuals, visualID);
}
if (mode == NULL)
return NULL;
ctx = indirect_create_context(psc, mode, NULL, renderType);
if (ctx == NULL)
return NULL;
ctx->xid = contextID;
ctx->imported = GL_TRUE;
ctx->share_xid = share;
return (GLXContext) ctx;
}
#endif
_GLX_PUBLIC int
glXQueryContext(Display * dpy, GLXContext ctx_user, int attribute, int *value)
{
struct glx_context *ctx = (struct glx_context *) ctx_user;
switch (attribute) {
case GLX_SHARE_CONTEXT_EXT:
*value = ctx->share_xid;
break;
case GLX_VISUAL_ID_EXT:
*value = ctx->config ? ctx->config->visualID : None;
break;
case GLX_SCREEN:
*value = ctx->screen;
break;
case GLX_FBCONFIG_ID:
*value = ctx->config ? ctx->config->fbconfigID : None;
break;
case GLX_RENDER_TYPE:
*value = ctx->renderType;
break;
default:
return GLX_BAD_ATTRIBUTE;
}
return Success;
}
_GLX_PUBLIC
GLX_ALIAS(int, glXQueryContextInfoEXT,
(Display * dpy, GLXContext ctx, int attribute, int *value),
(dpy, ctx, attribute, value), glXQueryContext)
_GLX_PUBLIC GLXContextID glXGetContextIDEXT(const GLXContext ctx_user)
{
struct glx_context *ctx = (struct glx_context *) ctx_user;
return (ctx == NULL) ? None : ctx->xid;
}
_GLX_PUBLIC void
glXFreeContextEXT(Display *dpy, GLXContext ctx)
{
struct glx_context *gc = (struct glx_context *) ctx;
if (gc == NULL || gc->xid == None)
return;
/* The GLX_EXT_import_context spec says:
*
* "glXFreeContext does not free the server-side context information or
* the XID associated with the server-side context."
*
* Don't send any protocol. Just destroy the client-side tracking of the
* context. Also, only release the context structure if it's not current.
*/
__glXLock();
if (gc->currentDpy) {
gc->xid = None;
} else {
gc->vtable->destroy(gc);
}
__glXUnlock();
}
_GLX_PUBLIC GLXFBConfig *
glXChooseFBConfig(Display * dpy, int screen,
const int *attribList, int *nitems)
{
struct glx_config **config_list;
int list_size;
config_list = (struct glx_config **)
glXGetFBConfigs(dpy, screen, &list_size);
if ((config_list != NULL) && (list_size > 0) && (attribList != NULL)) {
list_size = choose_fbconfig(config_list, list_size, attribList);
if (list_size == 0) {
free(config_list);
config_list = NULL;
}
}
*nitems = list_size;
return (GLXFBConfig *) config_list;
}
_GLX_PUBLIC GLXContext
glXCreateNewContext(Display * dpy, GLXFBConfig fbconfig,
int renderType, GLXContext shareList, Bool allowDirect)
{
struct glx_config *config = (struct glx_config *) fbconfig;
struct glx_config **config_list;
int list_size;
unsigned i;
if (!config) {
__glXSendError(dpy, GLXBadFBConfig, 0, X_GLXCreateNewContext, false);
return NULL;
}
config_list = (struct glx_config **)
glXGetFBConfigs(dpy, config->screen, &list_size);
for (i = 0; i < list_size; i++) {
if (config_list[i] == config)
break;
}
free(config_list);
if (i == list_size) {
__glXSendError(dpy, GLXBadFBConfig, 0, X_GLXCreateNewContext, false);
return NULL;
}
return CreateContext(dpy, config->fbconfigID, config, shareList,
allowDirect, X_GLXCreateNewContext, renderType,
config->screen);
}
_GLX_PUBLIC GLXDrawable
glXGetCurrentReadDrawable(void)
{
struct glx_context *gc = __glXGetCurrentContext();
return gc->currentReadable;
}
_GLX_PUBLIC GLXFBConfig *
glXGetFBConfigs(Display * dpy, int screen, int *nelements)
{
struct glx_display *priv = __glXInitialize(dpy);
struct glx_config **config_list = NULL;
struct glx_config *config;
unsigned num_configs = 0;
int i;
*nelements = 0;
if (priv && (priv->screens != NULL)
&& (screen >= 0) && (screen < ScreenCount(dpy))
&& (priv->screens[screen]->configs != NULL)
&& (priv->screens[screen]->configs->fbconfigID
!= (int) GLX_DONT_CARE)) {
for (config = priv->screens[screen]->configs; config != NULL;
config = config->next) {
if (config->fbconfigID != (int) GLX_DONT_CARE) {
num_configs++;
}
}
config_list = malloc(num_configs * sizeof *config_list);
if (config_list != NULL) {
*nelements = num_configs;
i = 0;
for (config = priv->screens[screen]->configs; config != NULL;
config = config->next) {
if (config->fbconfigID != (int) GLX_DONT_CARE) {
config_list[i] = config;
i++;
}
}
}
}
return (GLXFBConfig *) config_list;
}
_GLX_PUBLIC int
glXGetFBConfigAttrib(Display * dpy, GLXFBConfig fbconfig,
int attribute, int *value)
{
struct glx_config *config = ValidateGLXFBConfig(dpy, fbconfig);
if (config == NULL)
return GLXBadFBConfig;
return glx_config_get(config, attribute, value);
}
_GLX_PUBLIC XVisualInfo *
glXGetVisualFromFBConfig(Display * dpy, GLXFBConfig fbconfig)
{
XVisualInfo visualTemplate;
struct glx_config *config = (struct glx_config *) fbconfig;
int count;
/*
** Get a list of all visuals, return if list is empty
*/
visualTemplate.visualid = config->visualID;
return XGetVisualInfo(dpy, VisualIDMask, &visualTemplate, &count);
}
#ifndef GLX_USE_APPLEGL
/*
** GLX_SGI_swap_control
*/
static int
__glXSwapIntervalSGI(int interval)
{
xGLXVendorPrivateReq *req;
struct glx_context *gc = __glXGetCurrentContext();
struct glx_screen *psc;
Display *dpy;
CARD32 *interval_ptr;
CARD8 opcode;
if (gc == &dummyContext) {
return GLX_BAD_CONTEXT;
}
if (interval <= 0) {
return GLX_BAD_VALUE;
}
psc = GetGLXScreenConfigs( gc->currentDpy, gc->screen);
#ifdef GLX_DIRECT_RENDERING
if (gc->isDirect && psc && psc->driScreen &&
psc->driScreen->setSwapInterval) {
__GLXDRIdrawable *pdraw =
GetGLXDRIDrawable(gc->currentDpy, gc->currentDrawable);
psc->driScreen->setSwapInterval(pdraw, interval);
return 0;
}
#endif
dpy = gc->currentDpy;
opcode = __glXSetupForCommand(dpy);
if (!opcode) {
return 0;
}
/* Send the glXSwapIntervalSGI request */
LockDisplay(dpy);
GetReqExtra(GLXVendorPrivate, sizeof(CARD32), req);
req->reqType = opcode;
req->glxCode = X_GLXVendorPrivate;
req->vendorCode = X_GLXvop_SwapIntervalSGI;
req->contextTag = gc->currentContextTag;
interval_ptr = (CARD32 *) (req + 1);
*interval_ptr = interval;
UnlockDisplay(dpy);
SyncHandle();
XFlush(dpy);
return 0;
}
/*
** GLX_MESA_swap_control
*/
static int
__glXSwapIntervalMESA(unsigned int interval)
{
#ifdef GLX_DIRECT_RENDERING
struct glx_context *gc = __glXGetCurrentContext();
if (gc != &dummyContext && gc->isDirect) {
struct glx_screen *psc;
psc = GetGLXScreenConfigs( gc->currentDpy, gc->screen);
if (psc && psc->driScreen && psc->driScreen->setSwapInterval) {
__GLXDRIdrawable *pdraw =
GetGLXDRIDrawable(gc->currentDpy, gc->currentDrawable);
return psc->driScreen->setSwapInterval(pdraw, interval);
}
}
#endif
return GLX_BAD_CONTEXT;
}
static int
__glXGetSwapIntervalMESA(void)
{
#ifdef GLX_DIRECT_RENDERING
struct glx_context *gc = __glXGetCurrentContext();
if (gc != &dummyContext && gc->isDirect) {
struct glx_screen *psc;
psc = GetGLXScreenConfigs( gc->currentDpy, gc->screen);
if (psc && psc->driScreen && psc->driScreen->getSwapInterval) {
__GLXDRIdrawable *pdraw =
GetGLXDRIDrawable(gc->currentDpy, gc->currentDrawable);
return psc->driScreen->getSwapInterval(pdraw);
}
}
#endif
return 0;
}
/*
** GLX_SGI_video_sync
*/
static int
__glXGetVideoSyncSGI(unsigned int *count)
{
int64_t ust, msc, sbc;
int ret;
struct glx_context *gc = __glXGetCurrentContext();
struct glx_screen *psc;
#ifdef GLX_DIRECT_RENDERING
__GLXDRIdrawable *pdraw;
#endif
if (gc == &dummyContext)
return GLX_BAD_CONTEXT;
#ifdef GLX_DIRECT_RENDERING
if (!gc->isDirect)
return GLX_BAD_CONTEXT;
#endif
psc = GetGLXScreenConfigs(gc->currentDpy, gc->screen);
#ifdef GLX_DIRECT_RENDERING
pdraw = GetGLXDRIDrawable(gc->currentDpy, gc->currentDrawable);
#endif
/* FIXME: Looking at the GLX_SGI_video_sync spec in the extension registry,
* FIXME: there should be a GLX encoding for this call. I can find no
* FIXME: documentation for the GLX encoding.
*/
#ifdef GLX_DIRECT_RENDERING
if (psc && psc->driScreen && psc->driScreen->getDrawableMSC) {
ret = psc->driScreen->getDrawableMSC(psc, pdraw, &ust, &msc, &sbc);
*count = (unsigned) msc;
return (ret == True) ? 0 : GLX_BAD_CONTEXT;
}
#endif
return GLX_BAD_CONTEXT;
}
static int
__glXWaitVideoSyncSGI(int divisor, int remainder, unsigned int *count)
{
struct glx_context *gc = __glXGetCurrentContext();
struct glx_screen *psc;
#ifdef GLX_DIRECT_RENDERING
__GLXDRIdrawable *pdraw;
#endif
int64_t ust, msc, sbc;
int ret;
if (divisor <= 0 || remainder < 0)
return GLX_BAD_VALUE;
if (gc == &dummyContext)
return GLX_BAD_CONTEXT;
#ifdef GLX_DIRECT_RENDERING
if (!gc->isDirect)
return GLX_BAD_CONTEXT;
#endif
psc = GetGLXScreenConfigs( gc->currentDpy, gc->screen);
#ifdef GLX_DIRECT_RENDERING
pdraw = GetGLXDRIDrawable(gc->currentDpy, gc->currentDrawable);
#endif
#ifdef GLX_DIRECT_RENDERING
if (psc && psc->driScreen && psc->driScreen->waitForMSC) {
ret = psc->driScreen->waitForMSC(pdraw, 0, divisor, remainder, &ust, &msc,
&sbc);
*count = (unsigned) msc;
return (ret == True) ? 0 : GLX_BAD_CONTEXT;
}
#endif
return GLX_BAD_CONTEXT;
}
#endif /* GLX_USE_APPLEGL */
/*
** GLX_SGIX_fbconfig
** Many of these functions are aliased to GLX 1.3 entry points in the
** GLX_functions table.
*/
_GLX_PUBLIC
GLX_ALIAS(int, glXGetFBConfigAttribSGIX,
(Display * dpy, GLXFBConfigSGIX config, int attribute, int *value),
(dpy, config, attribute, value), glXGetFBConfigAttrib)
_GLX_PUBLIC GLX_ALIAS(GLXFBConfigSGIX *, glXChooseFBConfigSGIX,
(Display * dpy, int screen, int *attrib_list,
int *nelements), (dpy, screen, attrib_list, nelements),
glXChooseFBConfig)
_GLX_PUBLIC GLX_ALIAS(XVisualInfo *, glXGetVisualFromFBConfigSGIX,
(Display * dpy, GLXFBConfigSGIX config),
(dpy, config), glXGetVisualFromFBConfig)
_GLX_PUBLIC GLXPixmap
glXCreateGLXPixmapWithConfigSGIX(Display * dpy,
GLXFBConfigSGIX fbconfig,
Pixmap pixmap)
{
#ifndef GLX_USE_APPLEGL
xGLXVendorPrivateWithReplyReq *vpreq;
xGLXCreateGLXPixmapWithConfigSGIXReq *req;
GLXPixmap xid = None;
CARD8 opcode;
struct glx_screen *psc;
#endif
struct glx_config *config = (struct glx_config *) fbconfig;
if ((dpy == NULL) || (config == NULL)) {
return None;
}
#ifdef GLX_USE_APPLEGL
if(apple_glx_pixmap_create(dpy, config->screen, pixmap, config))
return None;
return pixmap;
#else
psc = GetGLXScreenConfigs(dpy, config->screen);
if ((psc != NULL)
&& __glXExtensionBitIsEnabled(psc, SGIX_fbconfig_bit)) {
opcode = __glXSetupForCommand(dpy);
if (!opcode) {
return None;
}
/* Send the glXCreateGLXPixmapWithConfigSGIX request */
LockDisplay(dpy);
GetReqExtra(GLXVendorPrivateWithReply,
sz_xGLXCreateGLXPixmapWithConfigSGIXReq -
sz_xGLXVendorPrivateWithReplyReq, vpreq);
req = (xGLXCreateGLXPixmapWithConfigSGIXReq *) vpreq;
req->reqType = opcode;
req->glxCode = X_GLXVendorPrivateWithReply;
req->vendorCode = X_GLXvop_CreateGLXPixmapWithConfigSGIX;
req->screen = config->screen;
req->fbconfig = config->fbconfigID;
req->pixmap = pixmap;
req->glxpixmap = xid = XAllocID(dpy);
UnlockDisplay(dpy);
SyncHandle();
}
return xid;
#endif
}
_GLX_PUBLIC GLXContext
glXCreateContextWithConfigSGIX(Display * dpy,
GLXFBConfigSGIX fbconfig, int renderType,
GLXContext shareList, Bool allowDirect)
{
GLXContext gc = NULL;
struct glx_config *config = (struct glx_config *) fbconfig;
struct glx_screen *psc;
if ((dpy == NULL) || (config == NULL)) {
return None;
}
psc = GetGLXScreenConfigs(dpy, config->screen);
if ((psc != NULL)
&& __glXExtensionBitIsEnabled(psc, SGIX_fbconfig_bit)) {
gc = CreateContext(dpy, config->fbconfigID, config, shareList,
allowDirect,
X_GLXvop_CreateContextWithConfigSGIX, renderType,
config->screen);
}
return gc;
}
_GLX_PUBLIC GLXFBConfigSGIX
glXGetFBConfigFromVisualSGIX(Display * dpy, XVisualInfo * vis)
{
struct glx_display *priv;
struct glx_screen *psc = NULL;
if ((GetGLXPrivScreenConfig(dpy, vis->screen, &priv, &psc) == Success)
&& __glXExtensionBitIsEnabled(psc, SGIX_fbconfig_bit)
&& (psc->configs->fbconfigID != (int) GLX_DONT_CARE)) {
return (GLXFBConfigSGIX) glx_config_find_visual(psc->configs,
vis->visualid);
}
return NULL;
}
#ifndef GLX_USE_APPLEGL
/*
** GLX_SGIX_swap_group
*/
static void
__glXJoinSwapGroupSGIX(Display * dpy, GLXDrawable drawable,
GLXDrawable member)
{
(void) dpy;
(void) drawable;
(void) member;
}
/*
** GLX_SGIX_swap_barrier
*/
static void
__glXBindSwapBarrierSGIX(Display * dpy, GLXDrawable drawable, int barrier)
{
(void) dpy;
(void) drawable;
(void) barrier;
}
static Bool
__glXQueryMaxSwapBarriersSGIX(Display * dpy, int screen, int *max)
{
(void) dpy;
(void) screen;
(void) max;
return False;
}
/*
** GLX_OML_sync_control
*/
static Bool
__glXGetSyncValuesOML(Display * dpy, GLXDrawable drawable,
int64_t * ust, int64_t * msc, int64_t * sbc)
{
struct glx_display * const priv = __glXInitialize(dpy);
int ret;
#ifdef GLX_DIRECT_RENDERING
__GLXDRIdrawable *pdraw;
#endif
struct glx_screen *psc;
if (!priv)
return False;
#ifdef GLX_DIRECT_RENDERING
pdraw = GetGLXDRIDrawable(dpy, drawable);
psc = pdraw ? pdraw->psc : NULL;
if (pdraw && psc->driScreen->getDrawableMSC) {
ret = psc->driScreen->getDrawableMSC(psc, pdraw, ust, msc, sbc);
return ret;
}
#endif
return False;
}
#if defined(GLX_DIRECT_RENDERING) && !defined(GLX_USE_APPLEGL)
_X_HIDDEN GLboolean
__glxGetMscRate(struct glx_screen *psc,
int32_t * numerator, int32_t * denominator)
{
#ifdef XF86VIDMODE
XF86VidModeModeLine mode_line;
int dot_clock;
int i;
if (XF86VidModeQueryVersion(psc->dpy, &i, &i) &&
XF86VidModeGetModeLine(psc->dpy, psc->scr, &dot_clock, &mode_line)) {
unsigned n = dot_clock * 1000;
unsigned d = mode_line.vtotal * mode_line.htotal;
# define V_INTERLACE 0x010
# define V_DBLSCAN 0x020
if (mode_line.flags & V_INTERLACE)
n *= 2;
else if (mode_line.flags & V_DBLSCAN)
d *= 2;
/* The OML_sync_control spec requires that if the refresh rate is a
* whole number, that the returned numerator be equal to the refresh
* rate and the denominator be 1.
*/
if (n % d == 0) {
n /= d;
d = 1;
}
else {
static const unsigned f[] = { 13, 11, 7, 5, 3, 2, 0 };
/* This is a poor man's way to reduce a fraction. It's far from
* perfect, but it will work well enough for this situation.
*/
for (i = 0; f[i] != 0; i++) {
while (n % f[i] == 0 && d % f[i] == 0) {
d /= f[i];
n /= f[i];
}
}
}
*numerator = n;
*denominator = d;
return True;
}
else
#endif
return False;
}
#endif
/**
* Determine the refresh rate of the specified drawable and display.
*
* \param dpy Display whose refresh rate is to be determined.
* \param drawable Drawable whose refresh rate is to be determined.
* \param numerator Numerator of the refresh rate.
* \param demoninator Denominator of the refresh rate.
* \return If the refresh rate for the specified display and drawable could
* be calculated, True is returned. Otherwise False is returned.
*
* \note This function is implemented entirely client-side. A lot of other
* functionality is required to export GLX_OML_sync_control, so on
* XFree86 this function can be called for direct-rendering contexts
* when GLX_OML_sync_control appears in the client extension string.
*/
_X_HIDDEN GLboolean
__glXGetMscRateOML(Display * dpy, GLXDrawable drawable,
int32_t * numerator, int32_t * denominator)
{
#if defined( GLX_DIRECT_RENDERING ) && defined( XF86VIDMODE )
__GLXDRIdrawable *draw = GetGLXDRIDrawable(dpy, drawable);
if (draw == NULL)
return False;
return __glxGetMscRate(draw->psc, numerator, denominator);
#else
(void) dpy;
(void) drawable;
(void) numerator;
(void) denominator;
#endif
return False;
}
static int64_t
__glXSwapBuffersMscOML(Display * dpy, GLXDrawable drawable,
int64_t target_msc, int64_t divisor, int64_t remainder)
{
struct glx_context *gc = __glXGetCurrentContext();
#ifdef GLX_DIRECT_RENDERING
__GLXDRIdrawable *pdraw = GetGLXDRIDrawable(dpy, drawable);
struct glx_screen *psc = pdraw ? pdraw->psc : NULL;
#endif
if (gc == &dummyContext) /* no GLX for this */
return -1;
#ifdef GLX_DIRECT_RENDERING
if (!pdraw || !gc->isDirect)
return -1;
#endif
/* The OML_sync_control spec says these should "generate a GLX_BAD_VALUE
* error", but it also says "It [glXSwapBuffersMscOML] will return a value
* of -1 if the function failed because of errors detected in the input
* parameters"
*/
if (divisor < 0 || remainder < 0 || target_msc < 0)
return -1;
if (divisor > 0 && remainder >= divisor)
return -1;
if (target_msc == 0 && divisor == 0 && remainder == 0)
remainder = 1;
#ifdef GLX_DIRECT_RENDERING
if (psc->driScreen && psc->driScreen->swapBuffers)
return (*psc->driScreen->swapBuffers)(pdraw, target_msc, divisor,
remainder, False);
#endif
return -1;
}
static Bool
__glXWaitForMscOML(Display * dpy, GLXDrawable drawable,
int64_t target_msc, int64_t divisor,
int64_t remainder, int64_t * ust,
int64_t * msc, int64_t * sbc)
{
#ifdef GLX_DIRECT_RENDERING
__GLXDRIdrawable *pdraw = GetGLXDRIDrawable(dpy, drawable);
struct glx_screen *psc = pdraw ? pdraw->psc : NULL;
int ret;
#endif
/* The OML_sync_control spec says these should "generate a GLX_BAD_VALUE
* error", but the return type in the spec is Bool.
*/
if (divisor < 0 || remainder < 0 || target_msc < 0)
return False;
if (divisor > 0 && remainder >= divisor)
return False;
#ifdef GLX_DIRECT_RENDERING
if (pdraw && psc->driScreen && psc->driScreen->waitForMSC) {
ret = psc->driScreen->waitForMSC(pdraw, target_msc, divisor, remainder,
ust, msc, sbc);
return ret;
}
#endif
return False;
}
static Bool
__glXWaitForSbcOML(Display * dpy, GLXDrawable drawable,
int64_t target_sbc, int64_t * ust,
int64_t * msc, int64_t * sbc)
{
#ifdef GLX_DIRECT_RENDERING
__GLXDRIdrawable *pdraw = GetGLXDRIDrawable(dpy, drawable);
struct glx_screen *psc = pdraw ? pdraw->psc : NULL;
int ret;
#endif
/* The OML_sync_control spec says this should "generate a GLX_BAD_VALUE
* error", but the return type in the spec is Bool.
*/
if (target_sbc < 0)
return False;
#ifdef GLX_DIRECT_RENDERING
if (pdraw && psc->driScreen && psc->driScreen->waitForSBC) {
ret = psc->driScreen->waitForSBC(pdraw, target_sbc, ust, msc, sbc);
return ret;
}
#endif
return False;
}
/*@}*/
/**
* Mesa extension stubs. These will help reduce portability problems.
*/
/*@{*/
/**
* Release all buffers associated with the specified GLX drawable.
*
* \todo
* This function was intended for stand-alone Mesa. The issue there is that
* the library doesn't get any notification when a window is closed. In
* DRI there is a similar but slightly different issue. When GLX 1.3 is
* supported, there are 3 different functions to destroy a drawable. It
* should be possible to create GLX protocol (or have it determine which
* protocol to use based on the type of the drawable) to have one function
* do the work of 3. For the direct-rendering case, this function could
* just call the driver's \c __DRIdrawableRec::destroyDrawable function.
* This would reduce the frequency with which \c __driGarbageCollectDrawables
* would need to be used. This really should be done as part of the new DRI
* interface work.
*
* \sa http://oss.sgi.com/projects/ogl-sample/registry/MESA/release_buffers.txt
* __driGarbageCollectDrawables
* glXDestroyGLXPixmap
* glXDestroyPbuffer glXDestroyPixmap glXDestroyWindow
* glXDestroyGLXPbufferSGIX glXDestroyGLXVideoSourceSGIX
*/
static Bool
__glXReleaseBuffersMESA(Display * dpy, GLXDrawable d)
{
(void) dpy;
(void) d;
return False;
}
_GLX_PUBLIC GLXPixmap
glXCreateGLXPixmapMESA(Display * dpy, XVisualInfo * visual,
Pixmap pixmap, Colormap cmap)
{
(void) dpy;
(void) visual;
(void) pixmap;
(void) cmap;
return 0;
}
/*@}*/
/**
* GLX_MESA_copy_sub_buffer
*/
#define X_GLXvop_CopySubBufferMESA 5154 /* temporary */
static void
__glXCopySubBufferMESA(Display * dpy, GLXDrawable drawable,
int x, int y, int width, int height)
{
xGLXVendorPrivateReq *req;
struct glx_context *gc;
GLXContextTag tag;
CARD32 *drawable_ptr;
INT32 *x_ptr, *y_ptr, *w_ptr, *h_ptr;
CARD8 opcode;
#if defined(GLX_DIRECT_RENDERING) && !defined(GLX_USE_APPLEGL)
__GLXDRIdrawable *pdraw = GetGLXDRIDrawable(dpy, drawable);
if (pdraw != NULL) {
struct glx_screen *psc = pdraw->psc;
if (psc->driScreen->copySubBuffer != NULL) {
(*psc->driScreen->copySubBuffer) (pdraw, x, y, width, height, True);
}
return;
}
#endif
opcode = __glXSetupForCommand(dpy);
if (!opcode)
return;
/*
** The calling thread may or may not have a current context. If it
** does, send the context tag so the server can do a flush.
*/
gc = __glXGetCurrentContext();
if ((gc != &dummyContext) && (dpy == gc->currentDpy) &&
((drawable == gc->currentDrawable) ||
(drawable == gc->currentReadable))) {
tag = gc->currentContextTag;
}
else {
tag = 0;
}
LockDisplay(dpy);
GetReqExtra(GLXVendorPrivate, sizeof(CARD32) + sizeof(INT32) * 4, req);
req->reqType = opcode;
req->glxCode = X_GLXVendorPrivate;
req->vendorCode = X_GLXvop_CopySubBufferMESA;
req->contextTag = tag;
drawable_ptr = (CARD32 *) (req + 1);
x_ptr = (INT32 *) (drawable_ptr + 1);
y_ptr = (INT32 *) (drawable_ptr + 2);
w_ptr = (INT32 *) (drawable_ptr + 3);
h_ptr = (INT32 *) (drawable_ptr + 4);
*drawable_ptr = drawable;
*x_ptr = x;
*y_ptr = y;
*w_ptr = width;
*h_ptr = height;
UnlockDisplay(dpy);
SyncHandle();
}
/*@{*/
static void
__glXBindTexImageEXT(Display * dpy,
GLXDrawable drawable, int buffer, const int *attrib_list)
{
struct glx_context *gc = __glXGetCurrentContext();
if (gc == &dummyContext || gc->vtable->bind_tex_image == NULL)
return;
gc->vtable->bind_tex_image(dpy, drawable, buffer, attrib_list);
}
static void
__glXReleaseTexImageEXT(Display * dpy, GLXDrawable drawable, int buffer)
{
struct glx_context *gc = __glXGetCurrentContext();
if (gc == &dummyContext || gc->vtable->release_tex_image == NULL)
return;
gc->vtable->release_tex_image(dpy, drawable, buffer);
}
/*@}*/
#endif /* GLX_USE_APPLEGL */
/*
** glXGetProcAddress support
*/
struct name_address_pair
{
const char *Name;
GLvoid *Address;
};
#define GLX_FUNCTION(f) { # f, (GLvoid *) f }
#define GLX_FUNCTION2(n,f) { # n, (GLvoid *) f }
static const struct name_address_pair GLX_functions[] = {
/*** GLX_VERSION_1_0 ***/
GLX_FUNCTION(glXChooseVisual),
GLX_FUNCTION(glXCopyContext),
GLX_FUNCTION(glXCreateContext),
GLX_FUNCTION(glXCreateGLXPixmap),
GLX_FUNCTION(glXDestroyContext),
GLX_FUNCTION(glXDestroyGLXPixmap),
GLX_FUNCTION(glXGetConfig),
GLX_FUNCTION(glXGetCurrentContext),
GLX_FUNCTION(glXGetCurrentDrawable),
GLX_FUNCTION(glXIsDirect),
GLX_FUNCTION(glXMakeCurrent),
GLX_FUNCTION(glXQueryExtension),
GLX_FUNCTION(glXQueryVersion),
GLX_FUNCTION(glXSwapBuffers),
GLX_FUNCTION(glXUseXFont),
GLX_FUNCTION(glXWaitGL),
GLX_FUNCTION(glXWaitX),
/*** GLX_VERSION_1_1 ***/
GLX_FUNCTION(glXGetClientString),
GLX_FUNCTION(glXQueryExtensionsString),
GLX_FUNCTION(glXQueryServerString),
/*** GLX_VERSION_1_2 ***/
GLX_FUNCTION(glXGetCurrentDisplay),
/*** GLX_VERSION_1_3 ***/
GLX_FUNCTION(glXChooseFBConfig),
GLX_FUNCTION(glXCreateNewContext),
GLX_FUNCTION(glXCreatePbuffer),
GLX_FUNCTION(glXCreatePixmap),
GLX_FUNCTION(glXCreateWindow),
GLX_FUNCTION(glXDestroyPbuffer),
GLX_FUNCTION(glXDestroyPixmap),
GLX_FUNCTION(glXDestroyWindow),
GLX_FUNCTION(glXGetCurrentReadDrawable),
GLX_FUNCTION(glXGetFBConfigAttrib),
GLX_FUNCTION(glXGetFBConfigs),
GLX_FUNCTION(glXGetSelectedEvent),
GLX_FUNCTION(glXGetVisualFromFBConfig),
GLX_FUNCTION(glXMakeContextCurrent),
GLX_FUNCTION(glXQueryContext),
GLX_FUNCTION(glXQueryDrawable),
GLX_FUNCTION(glXSelectEvent),
#ifndef GLX_USE_APPLEGL
/*** GLX_SGI_swap_control ***/
GLX_FUNCTION2(glXSwapIntervalSGI, __glXSwapIntervalSGI),
/*** GLX_SGI_video_sync ***/
GLX_FUNCTION2(glXGetVideoSyncSGI, __glXGetVideoSyncSGI),
GLX_FUNCTION2(glXWaitVideoSyncSGI, __glXWaitVideoSyncSGI),
/*** GLX_SGI_make_current_read ***/
GLX_FUNCTION2(glXMakeCurrentReadSGI, glXMakeContextCurrent),
GLX_FUNCTION2(glXGetCurrentReadDrawableSGI, glXGetCurrentReadDrawable),
/*** GLX_EXT_import_context ***/
GLX_FUNCTION(glXFreeContextEXT),
GLX_FUNCTION(glXGetContextIDEXT),
GLX_FUNCTION2(glXGetCurrentDisplayEXT, glXGetCurrentDisplay),
GLX_FUNCTION(glXImportContextEXT),
GLX_FUNCTION2(glXQueryContextInfoEXT, glXQueryContext),
#endif
/*** GLX_SGIX_fbconfig ***/
GLX_FUNCTION2(glXGetFBConfigAttribSGIX, glXGetFBConfigAttrib),
GLX_FUNCTION2(glXChooseFBConfigSGIX, glXChooseFBConfig),
GLX_FUNCTION(glXCreateGLXPixmapWithConfigSGIX),
GLX_FUNCTION(glXCreateContextWithConfigSGIX),
GLX_FUNCTION2(glXGetVisualFromFBConfigSGIX, glXGetVisualFromFBConfig),
GLX_FUNCTION(glXGetFBConfigFromVisualSGIX),
#ifndef GLX_USE_APPLEGL
/*** GLX_SGIX_pbuffer ***/
GLX_FUNCTION(glXCreateGLXPbufferSGIX),
GLX_FUNCTION(glXDestroyGLXPbufferSGIX),
GLX_FUNCTION(glXQueryGLXPbufferSGIX),
GLX_FUNCTION(glXSelectEventSGIX),
GLX_FUNCTION(glXGetSelectedEventSGIX),
/*** GLX_SGIX_swap_group ***/
GLX_FUNCTION2(glXJoinSwapGroupSGIX, __glXJoinSwapGroupSGIX),
/*** GLX_SGIX_swap_barrier ***/
GLX_FUNCTION2(glXBindSwapBarrierSGIX, __glXBindSwapBarrierSGIX),
GLX_FUNCTION2(glXQueryMaxSwapBarriersSGIX, __glXQueryMaxSwapBarriersSGIX),
/*** GLX_MESA_copy_sub_buffer ***/
GLX_FUNCTION2(glXCopySubBufferMESA, __glXCopySubBufferMESA),
/*** GLX_MESA_pixmap_colormap ***/
GLX_FUNCTION(glXCreateGLXPixmapMESA),
/*** GLX_MESA_release_buffers ***/
GLX_FUNCTION2(glXReleaseBuffersMESA, __glXReleaseBuffersMESA),
/*** GLX_MESA_swap_control ***/
GLX_FUNCTION2(glXSwapIntervalMESA, __glXSwapIntervalMESA),
GLX_FUNCTION2(glXGetSwapIntervalMESA, __glXGetSwapIntervalMESA),
#endif
/*** GLX_ARB_get_proc_address ***/
GLX_FUNCTION(glXGetProcAddressARB),
/*** GLX 1.4 ***/
GLX_FUNCTION2(glXGetProcAddress, glXGetProcAddressARB),
#ifndef GLX_USE_APPLEGL
/*** GLX_OML_sync_control ***/
GLX_FUNCTION2(glXWaitForSbcOML, __glXWaitForSbcOML),
GLX_FUNCTION2(glXWaitForMscOML, __glXWaitForMscOML),
GLX_FUNCTION2(glXSwapBuffersMscOML, __glXSwapBuffersMscOML),
GLX_FUNCTION2(glXGetMscRateOML, __glXGetMscRateOML),
GLX_FUNCTION2(glXGetSyncValuesOML, __glXGetSyncValuesOML),
/*** GLX_EXT_texture_from_pixmap ***/
GLX_FUNCTION2(glXBindTexImageEXT, __glXBindTexImageEXT),
GLX_FUNCTION2(glXReleaseTexImageEXT, __glXReleaseTexImageEXT),
#endif
#if defined(GLX_DIRECT_RENDERING) && defined(GLX_USE_DRM)
/*** DRI configuration ***/
GLX_FUNCTION(glXGetScreenDriver),
GLX_FUNCTION(glXGetDriverConfig),
#endif
/*** GLX_ARB_create_context and GLX_ARB_create_context_profile ***/
GLX_FUNCTION(glXCreateContextAttribsARB),
/*** GLX_MESA_query_renderer ***/
GLX_FUNCTION(glXQueryRendererIntegerMESA),
GLX_FUNCTION(glXQueryRendererStringMESA),
GLX_FUNCTION(glXQueryCurrentRendererIntegerMESA),
GLX_FUNCTION(glXQueryCurrentRendererStringMESA),
{NULL, NULL} /* end of list */
};
static const GLvoid *
get_glx_proc_address(const char *funcName)
{
GLuint i;
/* try static functions */
for (i = 0; GLX_functions[i].Name; i++) {
if (strcmp(GLX_functions[i].Name, funcName) == 0)
return GLX_functions[i].Address;
}
return NULL;
}
/**
* Get the address of a named GL function. This is the pre-GLX 1.4 name for
* \c glXGetProcAddress.
*
* \param procName Name of a GL or GLX function.
* \returns A pointer to the named function
*
* \sa glXGetProcAddress
*/
_GLX_PUBLIC void (*glXGetProcAddressARB(const GLubyte * procName)) (void)
{
typedef void (*gl_function) (void);
gl_function f;
/* Search the table of GLX and internal functions first. If that
* fails and the supplied name could be a valid core GL name, try
* searching the core GL function table. This check is done to prevent
* DRI based drivers from searching the core GL function table for
* internal API functions.
*/
f = (gl_function) get_glx_proc_address((const char *) procName);
if ((f == NULL) && (procName[0] == 'g') && (procName[1] == 'l')
&& (procName[2] != 'X')) {
#ifdef GLX_SHARED_GLAPI
f = (gl_function) __indirect_get_proc_address((const char *) procName);
#endif
if (!f)
f = (gl_function) _glapi_get_proc_address((const char *) procName);
if (!f) {
struct glx_context *gc = __glXGetCurrentContext();
if (gc != NULL && gc->vtable->get_proc_address != NULL)
f = gc->vtable->get_proc_address((const char *) procName);
}
}
return f;
}
/**
* Get the address of a named GL function. This is the GLX 1.4 name for
* \c glXGetProcAddressARB.
*
* \param procName Name of a GL or GLX function.
* \returns A pointer to the named function
*
* \sa glXGetProcAddressARB
*/
_GLX_PUBLIC void (*glXGetProcAddress(const GLubyte * procName)) (void)
# ifdef HAVE_FUNC_ATTRIBUTE_ALIAS
# if defined(USE_MGL_NAMESPACE)
__attribute__ ((alias("mglXGetProcAddressARB")));
# else
__attribute__ ((alias("glXGetProcAddressARB")));
# endif
#else
{
return glXGetProcAddressARB(procName);
}
#endif /* HAVE_FUNC_ATTRIBUTE_ALIA */
#if defined(GLX_DIRECT_RENDERING) && !defined(GLX_USE_APPLEGL)
/**
* Get the unadjusted system time (UST). Currently, the UST is measured in
* microseconds since Epoc. The actual resolution of the UST may vary from
* system to system, and the units may vary from release to release.
* Drivers should not call this function directly. They should instead use
* \c glXGetProcAddress to obtain a pointer to the function.
*
* \param ust Location to store the 64-bit UST
* \returns Zero on success or a negative errno value on failure.
*
* \sa glXGetProcAddress, PFNGLXGETUSTPROC
*
* \since Internal API version 20030317.
*/
_X_HIDDEN int
__glXGetUST(int64_t * ust)
{
struct timeval tv;
if (ust == NULL) {
return -EFAULT;
}
if (gettimeofday(&tv, NULL) == 0) {
ust[0] = (tv.tv_sec * 1000000) + tv.tv_usec;
return 0;
}
else {
return -errno;
}
}
#endif /* GLX_DIRECT_RENDERING */
#if defined(GLX_DIRECT_RENDERING) && !defined(GLX_USE_APPLEGL)
PUBLIC int
MesaGLInteropGLXQueryDeviceInfo(Display *dpy, GLXContext context,
struct mesa_glinterop_device_info *out)
{
struct glx_context *gc = (struct glx_context*)context;
int ret;
__glXLock();
if (!gc || gc->xid == None || !gc->isDirect) {
__glXUnlock();
return MESA_GLINTEROP_INVALID_CONTEXT;
}
if (!gc->vtable->interop_query_device_info) {
__glXUnlock();
return MESA_GLINTEROP_UNSUPPORTED;
}
ret = gc->vtable->interop_query_device_info(gc, out);
__glXUnlock();
return ret;
}
PUBLIC int
MesaGLInteropGLXExportObject(Display *dpy, GLXContext context,
struct mesa_glinterop_export_in *in,
struct mesa_glinterop_export_out *out)
{
struct glx_context *gc = (struct glx_context*)context;
int ret;
__glXLock();
if (!gc || gc->xid == None || !gc->isDirect) {
__glXUnlock();
return MESA_GLINTEROP_INVALID_CONTEXT;
}
if (!gc->vtable->interop_export_object) {
__glXUnlock();
return MESA_GLINTEROP_UNSUPPORTED;
}
ret = gc->vtable->interop_export_object(gc, in, out);
__glXUnlock();
return ret;
}
#endif /* defined(GLX_DIRECT_RENDERING) && !defined(GLX_USE_APPLEGL) */