diff options
Diffstat (limited to 'src/glut/glx/glut_cmap.c')
| -rw-r--r-- | src/glut/glx/glut_cmap.c | 422 |
1 files changed, 0 insertions, 422 deletions
diff --git a/src/glut/glx/glut_cmap.c b/src/glut/glx/glut_cmap.c deleted file mode 100644 index e6cb742cfec..00000000000 --- a/src/glut/glx/glut_cmap.c +++ /dev/null @@ -1,422 +0,0 @@ - -/* Copyright (c) Mark J. Kilgard, 1994, 1996, 1997. */ - -/* 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. */ - -#ifdef __VMS -#include <GL/vms_x_fix.h> -#endif - -#include <stdlib.h> -#include <string.h> -#include <stdio.h> /* SunOS multithreaded assert() needs <stdio.h>. Lame. */ -#include <assert.h> -#if !defined(_WIN32) -#include <X11/Xlib.h> -#include <X11/Xutil.h> -#include <X11/Xatom.h> /* for XA_RGB_DEFAULT_MAP atom */ -#if defined(__vms) -#include <Xmu/StdCmap.h> /* for XmuLookupStandardColormap */ -#else -#include <X11/Xmu/StdCmap.h> /* for XmuLookupStandardColormap */ -#endif -#endif - -/* 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 - -#include "glutint.h" -#include "layerutil.h" - -GLUTcolormap *__glutColormapList = NULL; - -GLUTcolormap * -__glutAssociateNewColormap(XVisualInfo * vis) -{ - GLUTcolormap *cmap; - int transparentPixel, i; - unsigned long pixels[255]; - - cmap = (GLUTcolormap *) malloc(sizeof(GLUTcolormap)); - if (!cmap) - __glutFatalError("out of memory."); -#if defined(_WIN32) - pixels[0] = 0; /* avoid compilation warnings on win32 */ - cmap->visual = 0; - cmap->size = 256; /* always assume 256 on Win32 */ -#else - cmap->visual = vis->visual; - cmap->size = vis->visual->map_entries; -#endif - cmap->refcnt = 1; - cmap->cells = (GLUTcolorcell *) - malloc(sizeof(GLUTcolorcell) * cmap->size); - if (!cmap->cells) - __glutFatalError("out of memory."); - /* make all color cell entries be invalid */ - for (i = cmap->size - 1; i >= 0; i--) { - cmap->cells[i].component[GLUT_RED] = -1.0; - cmap->cells[i].component[GLUT_GREEN] = -1.0; - cmap->cells[i].component[GLUT_BLUE] = -1.0; - } - transparentPixel = __glutGetTransparentPixel(__glutDisplay, vis); - if (transparentPixel == -1 || transparentPixel >= cmap->size) { - - /* If there is no transparent pixel or if the transparent - pixel is outside the range of valid colormap cells (HP - can implement their overlays this smart way since their - transparent pixel is 255), we can AllocAll the colormap. - See note below. */ - - cmap->cmap = XCreateColormap(__glutDisplay, - __glutRoot, cmap->visual, AllocAll); - } else { - - /* On machines where zero (or some other value in the range - of 0 through map_entries-1), BadAlloc may be generated - when an AllocAll overlay colormap is allocated since the - transparent pixel precludes all the cells in the colormap - being allocated (the transparent pixel is pre-allocated). - So in this case, use XAllocColorCells to allocate - map_entries-1 pixels (that is, all but the transparent - pixel. */ - -#if defined(_WIN32) - cmap->cmap = XCreateColormap(__glutDisplay, - __glutRoot, 0, AllocNone); -#else - cmap->cmap = XCreateColormap(__glutDisplay, - __glutRoot, vis->visual, AllocNone); - XAllocColorCells(__glutDisplay, cmap->cmap, False, 0, 0, - pixels, cmap->size - 1); -#endif - } - cmap->next = __glutColormapList; - __glutColormapList = cmap; - return cmap; -} - -static GLUTcolormap * -associateColormap(XVisualInfo * vis) -{ -#if !defined(_WIN32) - GLUTcolormap *cmap = __glutColormapList; - - while (cmap != NULL) { - /* Play safe: compare visual IDs, not Visual*'s. */ - if (cmap->visual->visualid == vis->visual->visualid) { - /* Already have created colormap for the visual. */ - cmap->refcnt++; - return cmap; - } - cmap = cmap->next; - } -#endif - return __glutAssociateNewColormap(vis); -} - -void -__glutSetupColormap(XVisualInfo * vi, GLUTcolormap ** colormap, Colormap * cmap) -{ -#if defined(_WIN32) - if (vi->dwFlags & PFD_NEED_PALETTE || vi->iPixelType == PFD_TYPE_COLORINDEX) { - *colormap = associateColormap(vi); - *cmap = (*colormap)->cmap; - } else { - *colormap = NULL; - *cmap = 0; - } -#else - Status status; - XStandardColormap *standardCmaps; - int i, numCmaps; - static Atom hpColorRecoveryAtom = -1; - int isRGB, visualClass, rc; - -#if defined(__cplusplus) || defined(c_plusplus) - visualClass = vi->c_class; -#else - visualClass = vi->class; -#endif - switch (visualClass) { - case PseudoColor: - /* Mesa might return a PseudoColor visual for RGB mode. */ - rc = glXGetConfig(__glutDisplay, vi, GLX_RGBA, &isRGB); - if (rc == 0 && isRGB) { - /* Must be Mesa. */ - *colormap = NULL; - if (MaxCmapsOfScreen(DefaultScreenOfDisplay(__glutDisplay)) == 1 - && vi->visual == DefaultVisual(__glutDisplay, __glutScreen)) { - char *privateCmap = getenv("MESA_PRIVATE_CMAP"); - - if (privateCmap) { - /* User doesn't want to share colormaps. */ - *cmap = XCreateColormap(__glutDisplay, __glutRoot, - vi->visual, AllocNone); - } else { - /* Share the root colormap. */ - *cmap = DefaultColormap(__glutDisplay, __glutScreen); - } - } else { - /* Get our own PseudoColor colormap. */ - *cmap = XCreateColormap(__glutDisplay, __glutRoot, - vi->visual, AllocNone); - } - } else { - /* CI mode, real GLX never returns a PseudoColor visual - for RGB mode. */ - *colormap = associateColormap(vi); - *cmap = (*colormap)->cmap; - } - break; - case TrueColor: - *colormap = NULL; /* NULL if RGBA */ - - /* Hewlett-Packard supports a feature called "HP Color - Recovery". Mesa has code to use HP Color Recovery. For - Mesa to use this feature, the atom - _HP_RGB_SMOOTH_MAP_LIST must be defined on the root - window AND the colormap obtainable by XGetRGBColormaps - for that atom must be set on the window. If that - colormap is not set, the output will look stripy. */ - - if (hpColorRecoveryAtom == -1) { - char *xvendor; - -#define VENDOR_HP "Hewlett-Packard" - - /* Only makes sense to make XInternAtom round-trip if we - know that we are connected to an HP X server. */ - xvendor = ServerVendor(__glutDisplay); - if (!strncmp(xvendor, VENDOR_HP, sizeof(VENDOR_HP) - 1)) { - hpColorRecoveryAtom = XInternAtom(__glutDisplay, "_HP_RGB_SMOOTH_MAP_LIST", True); - } else { - hpColorRecoveryAtom = None; - } - } - if (hpColorRecoveryAtom != None) { - status = XGetRGBColormaps(__glutDisplay, __glutRoot, - &standardCmaps, &numCmaps, hpColorRecoveryAtom); - if (status == 1) { - for (i = 0; i < numCmaps; i++) { - if (standardCmaps[i].visualid == vi->visualid) { - *cmap = standardCmaps[i].colormap; - XFree(standardCmaps); - return; - } - } - XFree(standardCmaps); - } - } -#ifndef SOLARIS_2_4_BUG - /* Solaris 2.4 and 2.5 have a bug in their - XmuLookupStandardColormap implementations. Please - compile your Solaris 2.4 or 2.5 version of GLUT with - -DSOLARIS_2_4_BUG to work around this bug. The symptom - of the bug is that programs will get a BadMatch error - from X_CreateWindow when creating a GLUT window because - Solaris 2.4 and 2.5 create a corrupted RGB_DEFAULT_MAP - property. Note that this workaround prevents Colormap - sharing between applications, perhaps leading - unnecessary colormap installations or colormap flashing. - Sun fixed this bug in Solaris 2.6. */ - status = XmuLookupStandardColormap(__glutDisplay, - vi->screen, vi->visualid, vi->depth, XA_RGB_DEFAULT_MAP, - /* replace */ False, /* retain */ True); - if (status == 1) { - status = XGetRGBColormaps(__glutDisplay, __glutRoot, - &standardCmaps, &numCmaps, XA_RGB_DEFAULT_MAP); - if (status == 1) { - for (i = 0; i < numCmaps; i++) { - if (standardCmaps[i].visualid == vi->visualid) { - *cmap = standardCmaps[i].colormap; - XFree(standardCmaps); - return; - } - } - XFree(standardCmaps); - } - } -#endif - /* If no standard colormap but TrueColor, just make a - private one. */ - /* XXX Should do a better job of internal sharing for - privately allocated TrueColor colormaps. */ - *cmap = XCreateColormap(__glutDisplay, __glutRoot, - vi->visual, AllocNone); - break; - case DirectColor: - *colormap = NULL; /* NULL if RGBA */ - *cmap = XCreateColormap(__glutDisplay, __glutRoot, - vi->visual, AllocAll); - if (vi->depth == 24) { - /* init the red, green, blue maps to linear ramps */ - XColor xc[256]; - int i; - for (i = 0; i < 256; i++) { - xc[i].pixel = (i << 16) | (i << 8) | i; - xc[i].red = (i << 8) | i; - xc[i].green = (i << 8) | i; - xc[i].blue = (i << 8) | i; - xc[i].flags = DoRed | DoGreen | DoBlue; - } - XStoreColors(__glutDisplay, *cmap, xc, 256); - } - else { - fprintf(stderr, "GLUT Error: DirectColor visuals other than 24-bits " - "not fully supported.\n"); - } - break; - case StaticColor: - case StaticGray: - case GrayScale: - /* Mesa supports these visuals */ - *colormap = NULL; - *cmap = XCreateColormap(__glutDisplay, __glutRoot, - vi->visual, AllocNone); - break; - default: - __glutFatalError( - "could not allocate colormap for visual type: %d.", - visualClass); - } - return; -#endif -} - -#if !defined(_WIN32) -static int -findColormaps(GLUTwindow * window, - Window * winlist, Colormap * cmaplist, int num, int max) -{ - GLUTwindow *child; - int i; - - /* Do not allow more entries that maximum number of - colormaps! */ - if (num >= max) - return num; - /* Is cmap for this window already on the list? */ - for (i = 0; i < num; i++) { - if (cmaplist[i] == window->cmap) - goto normalColormapAlreadyListed; - } - /* Not found on the list; add colormap and window. */ - winlist[num] = window->win; - cmaplist[num] = window->cmap; - num++; - -normalColormapAlreadyListed: - - /* Repeat above but for the overlay colormap if there one. */ - if (window->overlay) { - if (num >= max) - return num; - for (i = 0; i < num; i++) { - if (cmaplist[i] == window->overlay->cmap) - goto overlayColormapAlreadyListed; - } - winlist[num] = window->overlay->win; - cmaplist[num] = window->overlay->cmap; - num++; - } -overlayColormapAlreadyListed: - - /* Recursively search children. */ - child = window->children; - while (child) { - num = findColormaps(child, winlist, cmaplist, num, max); - child = child->siblings; - } - return num; -} - -void -__glutEstablishColormapsProperty(GLUTwindow * window) -{ - /* this routine is strictly X. Win32 doesn't need to do - anything of this sort (but has to do other wacky stuff - later). */ - static Atom wmColormapWindows = None; - Window *winlist; - Colormap *cmaplist; - Status status; - int maxcmaps, num, i; - - assert(!window->parent); - maxcmaps = MaxCmapsOfScreen(ScreenOfDisplay(__glutDisplay, - __glutScreen)); - /* For portability reasons we don't use alloca for winlist - and cmaplist, but we could. */ - winlist = (Window *) malloc(maxcmaps * sizeof(Window)); - cmaplist = (Colormap *) malloc(maxcmaps * sizeof(Colormap)); - for (i = 0; i < maxcmaps; i++) { - cmaplist[i] = 0; - } - num = findColormaps(window, winlist, cmaplist, 0, maxcmaps); - if (num < 2) { - /* Property no longer needed; remove it. */ - wmColormapWindows = XSGIFastInternAtom(__glutDisplay, - "WM_COLORMAP_WINDOWS", SGI_XA_WM_COLORMAP_WINDOWS, False); - if (wmColormapWindows == None) { - __glutWarning("Could not intern X atom for WM_COLORMAP_WINDOWS."); - return; - } - XDeleteProperty(__glutDisplay, window->win, wmColormapWindows); - } else { - status = XSetWMColormapWindows(__glutDisplay, window->win, - winlist, num); - /* XSetWMColormapWindows should always work unless the - WM_COLORMAP_WINDOWS property cannot be intern'ed. We - check to be safe. */ - if (status == False) - __glutFatalError("XSetWMColormapWindows returned False."); - } - /* For portability reasons we don't use alloca for winlist - and cmaplist, but we could. */ - free(winlist); - free(cmaplist); -} - -GLUTwindow * -__glutToplevelOf(GLUTwindow * window) -{ - while (window->parent) { - window = window->parent; - } - return window; -} -#endif - -void -__glutFreeColormap(GLUTcolormap * cmap) -{ - GLUTcolormap *cur, **prev; - - cmap->refcnt--; - if (cmap->refcnt == 0) { - /* remove from colormap list */ - cur = __glutColormapList; - prev = &__glutColormapList; - while (cur) { - if (cur == cmap) { - *prev = cmap->next; - break; - } - prev = &(cur->next); - cur = cur->next; - } - /* actually free colormap */ - XFreeColormap(__glutDisplay, cmap->cmap); - free(cmap->cells); - free(cmap); - } -} - |