+++ /dev/null
-
-/* 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. */
-
-#include <stdlib.h>
-#include "glutint.h"
-
-#if defined(__OS2PM__)
- #define IsWindowVisible WinIsWindowVisible
-#endif
-
-#define CLAMP(i) ((i) > 1.0 ? 1.0 : ((i) < 0.0 ? 0.0 : (i)))
-
-/* CENTRY */
-void GLUTAPIENTRY
-glutSetColor(int ndx, GLfloat red, GLfloat green, GLfloat blue)
-{
- GLUTcolormap *cmap, *newcmap;
- XVisualInfo *vis;
- XColor color;
- int i;
-
- if (__glutCurrentWindow->renderWin == __glutCurrentWindow->win) {
- cmap = __glutCurrentWindow->colormap;
- vis = __glutCurrentWindow->vis;
- } else {
- cmap = __glutCurrentWindow->overlay->colormap;
- vis = __glutCurrentWindow->overlay->vis;
- if (ndx == __glutCurrentWindow->overlay->transparentPixel) {
- __glutWarning(
- "glutSetColor: cannot set color of overlay transparent index %d\n",
- ndx);
- return;
- }
- }
-
- if (!cmap) {
- __glutWarning("glutSetColor: current window is RGBA");
- return;
- }
-#if defined(_WIN32) || defined(__OS2PM__)
- if (ndx >= 256 || /* always assume 256 colors on Win32 */
-#else
- if (ndx >= vis->visual->map_entries ||
-#endif
- ndx < 0) {
- __glutWarning("glutSetColor: index %d out of range", ndx);
- return;
- }
- if (cmap->refcnt > 1) {
- newcmap = __glutAssociateNewColormap(vis);
- cmap->refcnt--;
- /* Wouldn't it be nice if XCopyColormapAndFree could be
- told not to free the old colormap's entries! */
- for (i = cmap->size - 1; i >= 0; i--) {
- if (i == ndx) {
- /* We are going to set this cell shortly! */
- continue;
- }
- if (cmap->cells[i].component[GLUT_RED] >= 0.0) {
- color.pixel = i;
- newcmap->cells[i].component[GLUT_RED] =
- cmap->cells[i].component[GLUT_RED];
- color.red = (GLfloat) 0xffff *
- cmap->cells[i].component[GLUT_RED];
- newcmap->cells[i].component[GLUT_GREEN] =
- cmap->cells[i].component[GLUT_GREEN];
- color.green = (GLfloat) 0xffff *
- cmap->cells[i].component[GLUT_GREEN];
- newcmap->cells[i].component[GLUT_BLUE] =
- cmap->cells[i].component[GLUT_BLUE];
- color.blue = (GLfloat) 0xffff *
- cmap->cells[i].component[GLUT_BLUE];
- color.flags = DoRed | DoGreen | DoBlue;
-#if defined(_WIN32) || defined(__OS2PM__)
- if (IsWindowVisible(__glutCurrentWindow->win)) {
- XHDC = __glutCurrentWindow->hdc;
- } else {
- XHDC = 0;
- }
-#endif
- XStoreColor(__glutDisplay, newcmap->cmap, &color);
- } else {
- /* Leave unallocated entries unallocated. */
- }
- }
- cmap = newcmap;
- if (__glutCurrentWindow->renderWin == __glutCurrentWindow->win) {
- __glutCurrentWindow->colormap = cmap;
- __glutCurrentWindow->cmap = cmap->cmap;
- } else {
- __glutCurrentWindow->overlay->colormap = cmap;
- __glutCurrentWindow->overlay->cmap = cmap->cmap;
- }
- XSetWindowColormap(__glutDisplay,
- __glutCurrentWindow->renderWin, cmap->cmap);
-
-#if !defined(_WIN32) && !defined(__OS2PM__)
- {
- GLUTwindow *toplevel;
-
- toplevel = __glutToplevelOf(__glutCurrentWindow);
- if (toplevel->cmap != cmap->cmap) {
- __glutPutOnWorkList(toplevel, GLUT_COLORMAP_WORK);
- }
- }
-#endif
- }
- color.pixel = ndx;
- red = CLAMP(red);
- cmap->cells[ndx].component[GLUT_RED] = red;
- color.red = (GLfloat) 0xffff *red;
- green = CLAMP(green);
- cmap->cells[ndx].component[GLUT_GREEN] = green;
- color.green = (GLfloat) 0xffff *green;
- blue = CLAMP(blue);
- cmap->cells[ndx].component[GLUT_BLUE] = blue;
- color.blue = (GLfloat) 0xffff *blue;
- color.flags = DoRed | DoGreen | DoBlue;
-#if defined(_WIN32) || defined(__OS2PM__)
- if (IsWindowVisible(__glutCurrentWindow->win)) {
- XHDC = __glutCurrentWindow->hdc;
- } else {
- XHDC = 0;
- }
-#endif
- XStoreColor(__glutDisplay, cmap->cmap, &color);
-}
-
-GLfloat GLUTAPIENTRY
-glutGetColor(int ndx, int comp)
-{
- GLUTcolormap *colormap;
- XVisualInfo *vis;
-
- if (__glutCurrentWindow->renderWin == __glutCurrentWindow->win) {
- colormap = __glutCurrentWindow->colormap;
- vis = __glutCurrentWindow->vis;
- } else {
- colormap = __glutCurrentWindow->overlay->colormap;
- vis = __glutCurrentWindow->overlay->vis;
- if (ndx == __glutCurrentWindow->overlay->transparentPixel) {
- __glutWarning("glutGetColor: requesting overlay transparent index %d\n",
- ndx);
- return -1.0;
- }
- }
-
- if (!colormap) {
- __glutWarning("glutGetColor: current window is RGBA");
- return -1.0;
- }
-#if defined(_WIN32) || defined(__OS2PM__)
-#define OUT_OF_RANGE_NDX(ndx) (ndx >= 256 || ndx < 0)
-#else
-#define OUT_OF_RANGE_NDX(ndx) (ndx >= vis->visual->map_entries || ndx < 0)
-#endif
- if (OUT_OF_RANGE_NDX(ndx)) {
- __glutWarning("glutGetColor: index %d out of range", ndx);
- return -1.0;
- }
- return colormap->cells[ndx].component[comp];
-}
-
-void GLUTAPIENTRY
-glutCopyColormap(int winnum)
-{
- GLUTwindow *window = __glutWindowList[winnum - 1];
- GLUTcolormap *oldcmap, *newcmap;
- XVisualInfo *dstvis;
-
- if (__glutCurrentWindow->renderWin == __glutCurrentWindow->win) {
- oldcmap = __glutCurrentWindow->colormap;
- dstvis = __glutCurrentWindow->vis;
- newcmap = window->colormap;
- } else {
- oldcmap = __glutCurrentWindow->overlay->colormap;
- dstvis = __glutCurrentWindow->overlay->vis;
- if (!window->overlay) {
- __glutWarning("glutCopyColormap: window %d has no overlay", winnum);
- return;
- }
- newcmap = window->overlay->colormap;
- }
-
- if (!oldcmap) {
- __glutWarning("glutCopyColormap: destination colormap must be color index");
- return;
- }
- if (!newcmap) {
- __glutWarning(
- "glutCopyColormap: source colormap of window %d must be color index",
- winnum);
- return;
- }
- if (newcmap == oldcmap) {
- /* Source and destination are the same; now copy needed. */
- return;
- }
-#if !defined(_WIN32) && !defined(__OS2PM__)
- /* Play safe: compare visual IDs, not Visual*'s. */
- if (newcmap->visual->visualid == oldcmap->visual->visualid) {
-#endif
- /* Visuals match! "Copy" by reference... */
- __glutFreeColormap(oldcmap);
- newcmap->refcnt++;
- if (__glutCurrentWindow->renderWin == __glutCurrentWindow->win) {
- __glutCurrentWindow->colormap = newcmap;
- __glutCurrentWindow->cmap = newcmap->cmap;
- } else {
- __glutCurrentWindow->overlay->colormap = newcmap;
- __glutCurrentWindow->overlay->cmap = newcmap->cmap;
- }
- XSetWindowColormap(__glutDisplay, __glutCurrentWindow->renderWin,
- newcmap->cmap);
-#if !defined(_WIN32) && !defined(__OS2PM__)
- __glutPutOnWorkList(__glutToplevelOf(window), GLUT_COLORMAP_WORK);
-bla bla bla
-
- } else {
- GLUTcolormap *copycmap;
- XColor color;
- int i, last;
-
- /* Visuals different - need a distinct X colormap! */
- copycmap = __glutAssociateNewColormap(dstvis);
- /* Wouldn't it be nice if XCopyColormapAndFree could be
- told not to free the old colormap's entries! */
- last = newcmap->size;
- if (last > copycmap->size) {
- last = copycmap->size;
- }
- for (i = last - 1; i >= 0; i--) {
- if (newcmap->cells[i].component[GLUT_RED] >= 0.0) {
- color.pixel = i;
- copycmap->cells[i].component[GLUT_RED] =
- newcmap->cells[i].component[GLUT_RED];
- color.red = (GLfloat) 0xffff *
- newcmap->cells[i].component[GLUT_RED];
- copycmap->cells[i].component[GLUT_GREEN] =
- newcmap->cells[i].component[GLUT_GREEN];
- color.green = (GLfloat) 0xffff *
- newcmap->cells[i].component[GLUT_GREEN];
- copycmap->cells[i].component[GLUT_BLUE] =
- newcmap->cells[i].component[GLUT_BLUE];
- color.blue = (GLfloat) 0xffff *
- newcmap->cells[i].component[GLUT_BLUE];
- color.flags = DoRed | DoGreen | DoBlue;
- XStoreColor(__glutDisplay, copycmap->cmap, &color);
- }
- }
- }
-#endif
-}
-/* ENDCENTRY */
projects / mesa.git / blobdiff