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-rw-r--r--src/glut/glx/win32_x11.c400
1 files changed, 400 insertions, 0 deletions
diff --git a/src/glut/glx/win32_x11.c b/src/glut/glx/win32_x11.c
new file mode 100644
index 00000000000..1d138cfa2ac
--- /dev/null
+++ b/src/glut/glx/win32_x11.c
@@ -0,0 +1,400 @@
+
+/* Copyright (c) Nate Robins, 1997. */
+/* portions Copyright (c) Mark Kilgard, 1998. */
+
+/* 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 "glutint.h"
+
+/* global variable that must be set for some functions to operate
+ correctly. */
+HDC XHDC;
+
+XVisualInfo*
+XGetVisualInfo(Display* display, long mask, XVisualInfo* template, int* nitems)
+{
+ /* KLUDGE: this function needs XHDC to be set to the HDC currently
+ being operated on before it is invoked! */
+
+ PIXELFORMATDESCRIPTOR* pfds;
+ int i, n;
+
+ n = DescribePixelFormat(XHDC, 0, 0, NULL);
+ pfds = (PIXELFORMATDESCRIPTOR*)malloc(sizeof(PIXELFORMATDESCRIPTOR) * n);
+ memset(pfds, 0, sizeof(PIXELFORMATDESCRIPTOR) * n);
+
+ for (i = 0; i < n; i++) {
+ DescribePixelFormat(XHDC, i + 1, sizeof(PIXELFORMATDESCRIPTOR), &pfds[i]);
+ }
+
+ *nitems = n;
+ return pfds;
+}
+
+Colormap
+XCreateColormap(Display* display, Window root, Visual* visual, int alloc)
+{
+ /* KLUDGE: this function needs XHDC to be set to the HDC currently
+ being operated on before it is invoked! */
+
+ PIXELFORMATDESCRIPTOR pfd;
+ LOGPALETTE *logical;
+ HPALETTE palette;
+ int n;
+
+ /* grab the pixel format */
+ memset(&pfd, 0, sizeof(PIXELFORMATDESCRIPTOR));
+ DescribePixelFormat(XHDC, GetPixelFormat(XHDC),
+ sizeof(PIXELFORMATDESCRIPTOR), &pfd);
+
+ if (!(pfd.dwFlags & PFD_NEED_PALETTE ||
+ pfd.iPixelType == PFD_TYPE_COLORINDEX))
+ {
+ return 0;
+ }
+
+ n = 1 << pfd.cColorBits;
+
+ /* allocate a bunch of memory for the logical palette (assume 256
+ colors in a Win32 palette */
+ logical = (LOGPALETTE*)malloc(sizeof(LOGPALETTE) +
+ sizeof(PALETTEENTRY) * n);
+ memset(logical, 0, sizeof(LOGPALETTE) + sizeof(PALETTEENTRY) * n);
+
+ /* set the entries in the logical palette */
+ logical->palVersion = 0x300;
+ logical->palNumEntries = n;
+
+ /* start with a copy of the current system palette */
+ GetSystemPaletteEntries(XHDC, 0, 256, &logical->palPalEntry[0]);
+
+ if (pfd.iPixelType == PFD_TYPE_RGBA) {
+ int redMask = (1 << pfd.cRedBits) - 1;
+ int greenMask = (1 << pfd.cGreenBits) - 1;
+ int blueMask = (1 << pfd.cBlueBits) - 1;
+ int i;
+
+ /* fill in an RGBA color palette */
+ for (i = 0; i < n; ++i) {
+ logical->palPalEntry[i].peRed =
+ (((i >> pfd.cRedShift) & redMask) * 255) / redMask;
+ logical->palPalEntry[i].peGreen =
+ (((i >> pfd.cGreenShift) & greenMask) * 255) / greenMask;
+ logical->palPalEntry[i].peBlue =
+ (((i >> pfd.cBlueShift) & blueMask) * 255) / blueMask;
+ logical->palPalEntry[i].peFlags = 0;
+ }
+ }
+
+ palette = CreatePalette(logical);
+ free(logical);
+
+ SelectPalette(XHDC, palette, FALSE);
+ RealizePalette(XHDC);
+
+ return palette;
+}
+
+void
+XAllocColorCells(Display* display, Colormap colormap, Bool contig,
+ unsigned long plane_masks_return[], unsigned int nplanes,
+ unsigned long pixels_return[], unsigned int npixels)
+{
+ /* NOP -- we did all the allocating in XCreateColormap! */
+}
+
+void
+XStoreColor(Display* display, Colormap colormap, XColor* color)
+{
+ /* KLUDGE: set XHDC to 0 if the palette should NOT be realized after
+ setting the color. set XHDC to the correct HDC if it should. */
+
+ PALETTEENTRY pe;
+
+ /* X11 stores color from 0-65535, Win32 expects them to be 0-256, so
+ twiddle the bits ( / 256). */
+ pe.peRed = color->red / 256;
+ pe.peGreen = color->green / 256;
+ pe.peBlue = color->blue / 256;
+
+ /* make sure we use this flag, otherwise the colors might get mapped
+ to another place in the colormap, and when we glIndex() that
+ color, it may have moved (argh!!) */
+ pe.peFlags = PC_NOCOLLAPSE;
+
+ /* the pixel field of the XColor structure is the index into the
+ colormap */
+ SetPaletteEntries(colormap, color->pixel, 1, &pe);
+
+ if (XHDC) {
+ UnrealizeObject(colormap);
+ SelectPalette(XHDC, colormap, FALSE);
+ RealizePalette(XHDC);
+ }
+}
+
+void
+XSetWindowColormap(Display* display, Window window, Colormap colormap)
+{
+ HDC hdc = GetDC(window);
+
+ /* if the third parameter is FALSE, the logical colormap is copied
+ into the device palette when the application is in the
+ foreground, if it is TRUE, the colors are mapped into the current
+ palette in the best possible way. */
+ SelectPalette(hdc, colormap, FALSE);
+ RealizePalette(hdc);
+
+ /* note that we don't have to release the DC, since our window class
+ uses the WC_OWNDC flag! */
+}
+
+Bool
+XTranslateCoordinates(Display *display, Window src, Window dst,
+ int src_x, int src_y,
+ int* dest_x_return, int* dest_y_return,
+ Window* child_return)
+{
+ /* KLUDGE: this isn't really a translate coordinates into some other
+ windows coordinate system...it only translates coordinates into the
+ root window (screen) coordinate system. */
+
+ POINT point;
+
+ point.x = src_x;
+ point.y = src_y;
+
+ ClientToScreen(src, &point);
+
+ *dest_x_return = point.x;
+ *dest_y_return = point.y;
+
+ /* just to make compilers happy...we don't use the return value. */
+ return True;
+}
+
+Status
+XGetGeometry(Display* display, Window window, Window* root_return,
+ int* x_return, int* y_return,
+ unsigned int* width_return, unsigned int* height_return,
+ unsigned int *border_width_return, unsigned int* depth_return)
+{
+ /* KLUDGE: doesn't return the border_width or depth or root, x & y
+ are in screen coordinates. */
+
+ RECT rect;
+ POINT point;
+
+ GetClientRect(window, &rect);
+
+ point.x = 0;
+ point.y = 0;
+ ClientToScreen(window, &point);
+
+ *x_return = point.x;
+ *y_return = point.y;
+ *width_return = rect.right;
+ *height_return = rect.bottom;
+
+ /* just to make compilers happy...we don't use the return value. */
+ return 1;
+}
+
+int
+DisplayWidthMM(Display* display, int screen)
+{
+ int width;
+ HWND hwnd = GetDesktopWindow();
+ HDC hdc = GetDC(hwnd);
+
+ width = GetDeviceCaps(hdc, HORZSIZE);
+
+ /* make sure to release this DC (it's the desktops, not ours) */
+ ReleaseDC(hwnd, hdc);
+
+ return width;
+}
+
+int
+DisplayHeightMM(Display* display, int screen)
+{
+ int height;
+ HWND hwnd = GetDesktopWindow();
+ HDC hdc = GetDC(hwnd);
+
+ height = GetDeviceCaps(hdc, VERTSIZE);
+
+ /* make sure to release this DC (it's the desktops, not ours) */
+ ReleaseDC(hwnd, hdc);
+
+ return height;
+}
+
+void
+XWarpPointer(Display* display, Window src, Window dst,
+ int src_x, int src_y, int src_width, int src_height,
+ int dst_x, int dst_y)
+{
+ /* KLUDGE: this isn't really a warp pointer into some other windows
+ coordinate system...it only warps the pointer into the root window
+ (screen) coordinate system. */
+
+ POINT point;
+
+ point.x = dst_x;
+ point.y = dst_y;
+ ClientToScreen(dst, &point);
+
+ SetCursorPos(point.x, point.y);
+}
+
+int
+XPending(Display* display)
+{
+ /* similar functionality...I don't think that it is exact, but this
+ will have to do. */
+ MSG msg;
+
+ return PeekMessage(&msg, NULL, 0, 0, PM_NOREMOVE);
+}
+
+/* the following function was stolen from the X sources as indicated. */
+
+/* Copyright Massachusetts Institute of Technology 1985, 1986, 1987 */
+/* $XConsortium: XParseGeom.c,v 11.18 91/02/21 17:23:05 rws Exp $ */
+
+/*
+Permission to use, copy, modify, distribute, and sell this software and its
+documentation for any purpose is hereby granted without fee, provided that
+the above copyright notice appear in all copies and that both that
+copyright notice and this permission notice appear in supporting
+documentation, and that the name of M.I.T. not be used in advertising or
+publicity pertaining to distribution of the software without specific,
+written prior permission. M.I.T. makes no representations about the
+suitability of this software for any purpose. It is provided "as is"
+without express or implied warranty.
+*/
+
+/*
+ * XParseGeometry parses strings of the form
+ * "=<width>x<height>{+-}<xoffset>{+-}<yoffset>", where
+ * width, height, xoffset, and yoffset are unsigned integers.
+ * Example: "=80x24+300-49"
+ * The equal sign is optional.
+ * It returns a bitmask that indicates which of the four values
+ * were actually found in the string. For each value found,
+ * the corresponding argument is updated; for each value
+ * not found, the corresponding argument is left unchanged.
+ */
+
+static int
+ReadInteger(char *string, char **NextString)
+{
+ register int Result = 0;
+ int Sign = 1;
+
+ if (*string == '+')
+ string++;
+ else if (*string == '-')
+ {
+ string++;
+ Sign = -1;
+ }
+ for (; (*string >= '0') && (*string <= '9'); string++)
+ {
+ Result = (Result * 10) + (*string - '0');
+ }
+ *NextString = string;
+ if (Sign >= 0)
+ return (Result);
+ else
+ return (-Result);
+}
+
+int XParseGeometry(char *string, int *x, int *y, unsigned int *width, unsigned int *height)
+{
+ int mask = NoValue;
+ register char *strind;
+ unsigned int tempWidth, tempHeight;
+ int tempX, tempY;
+ char *nextCharacter;
+
+ if ( (string == NULL) || (*string == '\0')) return(mask);
+ if (*string == '=')
+ string++; /* ignore possible '=' at beg of geometry spec */
+
+ strind = (char *)string;
+ if (*strind != '+' && *strind != '-' && *strind != 'x') {
+ tempWidth = ReadInteger(strind, &nextCharacter);
+ if (strind == nextCharacter)
+ return (0);
+ strind = nextCharacter;
+ mask |= WidthValue;
+ }
+
+ if (*strind == 'x' || *strind == 'X') {
+ strind++;
+ tempHeight = ReadInteger(strind, &nextCharacter);
+ if (strind == nextCharacter)
+ return (0);
+ strind = nextCharacter;
+ mask |= HeightValue;
+ }
+
+ if ((*strind == '+') || (*strind == '-')) {
+ if (*strind == '-') {
+ strind++;
+ tempX = -ReadInteger(strind, &nextCharacter);
+ if (strind == nextCharacter)
+ return (0);
+ strind = nextCharacter;
+ mask |= XNegative;
+
+ }
+ else
+ { strind++;
+ tempX = ReadInteger(strind, &nextCharacter);
+ if (strind == nextCharacter)
+ return(0);
+ strind = nextCharacter;
+ }
+ mask |= XValue;
+ if ((*strind == '+') || (*strind == '-')) {
+ if (*strind == '-') {
+ strind++;
+ tempY = -ReadInteger(strind, &nextCharacter);
+ if (strind == nextCharacter)
+ return(0);
+ strind = nextCharacter;
+ mask |= YNegative;
+
+ }
+ else
+ {
+ strind++;
+ tempY = ReadInteger(strind, &nextCharacter);
+ if (strind == nextCharacter)
+ return(0);
+ strind = nextCharacter;
+ }
+ mask |= YValue;
+ }
+ }
+
+ /* If strind isn't at the end of the string the it's an invalid
+ geometry specification. */
+
+ if (*strind != '\0') return (0);
+
+ if (mask & XValue)
+ *x = tempX;
+ if (mask & YValue)
+ *y = tempY;
+ if (mask & WidthValue)
+ *width = tempWidth;
+ if (mask & HeightValue)
+ *height = tempHeight;
+ return (mask);
+}
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