diff options
Diffstat (limited to 'src/glut/glx/layerutil.c')
| -rw-r--r-- | src/glut/glx/layerutil.c | 203 |
1 files changed, 0 insertions, 203 deletions
diff --git a/src/glut/glx/layerutil.c b/src/glut/glx/layerutil.c deleted file mode 100644 index 36d43e5..0000000 --- a/src/glut/glx/layerutil.c +++ /dev/null @@ -1,203 +0,0 @@ - -/* Copyright (c) Mark J. Kilgard, 1993, 1994. */ - -/* This program is freely distributable without licensing fees - and is provided without guarantee or warrantee expressed or - implied. This program is -not- in the public domain. */ - -/* Based on XLayerUtil.c: Revision: 1.5 */ - -#include <stdio.h> -#include <stdlib.h> -#include "layerutil.h" - -/* SGI optimization introduced in IRIX 6.3 to avoid X server - round trips for interning common X atoms. */ -#if defined(_SGI_EXTRA_PREDEFINES) && !defined(NO_FAST_ATOMS) -#include <X11/SGIFastAtom.h> -#else -#define XSGIFastInternAtom(dpy,string,fast_name,how) XInternAtom(dpy,string,how) -#endif - -static Bool layersRead = False; -static OverlayInfo **overlayInfoPerScreen; -static unsigned long *numOverlaysPerScreen; - -static void -findServerOverlayVisualsInfo(Display * dpy) -{ - static Atom overlayVisualsAtom; - Atom actualType; - Status status; - unsigned long sizeData, bytesLeft; - Window root; - int actualFormat, numScreens, i; - - if (layersRead == False) { - overlayVisualsAtom = XSGIFastInternAtom(dpy, - "SERVER_OVERLAY_VISUALS", SGI_XA_SERVER_OVERLAY_VISUALS, True); - if (overlayVisualsAtom != None) { - numScreens = ScreenCount(dpy); - overlayInfoPerScreen = (OverlayInfo **) - malloc(numScreens * sizeof(OverlayInfo *)); - numOverlaysPerScreen = (unsigned long *) - malloc(numScreens * sizeof(unsigned long)); - if (overlayInfoPerScreen != NULL && - numOverlaysPerScreen != NULL) { - for (i = 0; i < numScreens; i++) { - root = RootWindow(dpy, i); - status = XGetWindowProperty(dpy, root, - overlayVisualsAtom, 0L, (long) 10000, False, - overlayVisualsAtom, &actualType, &actualFormat, - &sizeData, &bytesLeft, - (unsigned char **) &overlayInfoPerScreen[i]); - if (status != Success || - actualType != overlayVisualsAtom || - actualFormat != 32 || sizeData < 4) - numOverlaysPerScreen[i] = 0; - else - /* Four 32-bit quantities per - SERVER_OVERLAY_VISUALS entry. */ - numOverlaysPerScreen[i] = sizeData / 4; - } - layersRead = True; - } else { - if (overlayInfoPerScreen != NULL) - free(overlayInfoPerScreen); - if (numOverlaysPerScreen != NULL) - free(numOverlaysPerScreen); - } - } - } -} - -int -__glutGetTransparentPixel(Display * dpy, XVisualInfo * vinfo) -{ - int i, screen = vinfo->screen; - OverlayInfo *overlayInfo; - - findServerOverlayVisualsInfo(dpy); - if (layersRead) { - for (i = 0; i < numOverlaysPerScreen[screen]; i++) { - overlayInfo = &overlayInfoPerScreen[screen][i]; - if (vinfo->visualid == overlayInfo->overlay_visual) { - if (overlayInfo->transparent_type == TransparentPixel) { - return (int) overlayInfo->value; - } else { - return -1; - } - } - } - } - return -1; -} - -XLayerVisualInfo * -__glutXGetLayerVisualInfo(Display * dpy, long lvinfo_mask, - XLayerVisualInfo * lvinfo_template, int *nitems_return) -{ - XVisualInfo *vinfo; - XLayerVisualInfo *layerInfo; - int numVisuals, count, i, j; - - vinfo = XGetVisualInfo(dpy, lvinfo_mask & VisualAllMask, - &lvinfo_template->vinfo, nitems_return); - if (vinfo == NULL) - return NULL; - numVisuals = *nitems_return; - findServerOverlayVisualsInfo(dpy); - layerInfo = (XLayerVisualInfo *) - malloc(numVisuals * sizeof(XLayerVisualInfo)); - if (layerInfo == NULL) { - XFree(vinfo); - return NULL; - } - count = 0; - for (i = 0; i < numVisuals; i++) { - XVisualInfo *pVinfo = &vinfo[i]; - int screen = pVinfo->screen; - OverlayInfo *overlayInfo = NULL; - - overlayInfo = NULL; - if (layersRead) { - for (j = 0; j < numOverlaysPerScreen[screen]; j++) - if (pVinfo->visualid == - overlayInfoPerScreen[screen][j].overlay_visual) { - overlayInfo = &overlayInfoPerScreen[screen][j]; - break; - } - } - if (lvinfo_mask & VisualLayerMask) { - if (overlayInfo == NULL) { - if (lvinfo_template->layer != 0) - continue; - } else if (lvinfo_template->layer != overlayInfo->layer) - continue; - } - if (lvinfo_mask & VisualTransparentType) { - if (overlayInfo == NULL) { - if (lvinfo_template->type != None) - continue; - } else if (lvinfo_template->type != - overlayInfo->transparent_type) - continue; - } - if (lvinfo_mask & VisualTransparentValue) { - if (overlayInfo == NULL) - /* Non-overlay visuals have no sense of - TransparentValue. */ - continue; - else if (lvinfo_template->value != overlayInfo->value) - continue; - } - layerInfo[count].vinfo = *pVinfo; - if (overlayInfo == NULL) { - layerInfo[count].layer = 0; - layerInfo[count].type = None; - layerInfo[count].value = 0; /* meaningless */ - } else { - layerInfo[count].layer = overlayInfo->layer; - layerInfo[count].type = overlayInfo->transparent_type; - layerInfo[count].value = overlayInfo->value; - } - count++; - } - XFree(vinfo); - *nitems_return = count; - if (count == 0) { - XFree(layerInfo); - return NULL; - } else - return layerInfo; -} - -#if 0 /* Unused by GLUT. */ -Status -__glutXMatchLayerVisualInfo(Display * dpy, int screen, - int depth, int visualClass, int layer, - XLayerVisualInfo * lvinfo_return) -{ - XLayerVisualInfo *lvinfo; - XLayerVisualInfo lvinfoTemplate; - int nitems; - - lvinfoTemplate.vinfo.screen = screen; - lvinfoTemplate.vinfo.depth = depth; -#if defined(__cplusplus) || defined(c_plusplus) - lvinfoTemplate.vinfo.c_class = visualClass; -#else - lvinfoTemplate.vinfo.class = visualClass; -#endif - lvinfoTemplate.layer = layer; - lvinfo = __glutXGetLayerVisualInfo(dpy, - VisualScreenMask | VisualDepthMask | - VisualClassMask | VisualLayerMask, - &lvinfoTemplate, &nitems); - if (lvinfo != NULL && nitems > 0) { - *lvinfo_return = *lvinfo; - return 1; - } else - return 0; -} -#endif |