src/glut/glx/win32_util.c

   1
   2 /* Copyright (c) Nate Robins, 1997. */
   3
   4 /* portions Copyright (c) Mark Kilgard, 1997, 1998. */
   5
   6 /* This program is freely distributable without licensing fees
   7    and is provided without guarantee or warrantee expressed or
   8    implied. This program is -not- in the public domain. */
   9
  10
  11 #include "glutint.h"
  12 #include "glutstroke.h"
  13 #include "glutbitmap.h"
  14 #include <sys/timeb.h>
  15
  16 /* The following added by Paul Garceau <pgarceau@teleport.com> */
  17 #if defined(__MINGW32__)
  18 #include <GL/gl.h>
  19 #include <time.h>
  20 #include <windows.h>
  21 struct timeval;
  22 #endif
  23
  24 extern StrokeFontRec glutStrokeRoman, glutStrokeMonoRoman;
  25 extern BitmapFontRec glutBitmap8By13, glutBitmap9By15, glutBitmapTimesRoman10, glutBitmapTimesRoman24, glutBitmapHelvetica10, glutBitmapHelvetica12, glutBitmapHelvetica18;
  26
  27 #ifndef __CYGWIN32__
  28 int
  29 gettimeofday(struct timeval* tp, void* tzp)
  30 {
  31   struct timeb tb;
  32
  33   ftime(&tb);
  34   tp->tv_sec = tb.time;
  35   tp->tv_usec = tb.millitm * 1000;
  36
  37   /* 0 indicates that the call succeeded. */
  38   return 0;
  39 }
  40 #endif
  41
  42 /* To get around the fact that Microsoft DLLs only allow functions
  43    to be exported and now data addresses (as Unix DSOs support), the
  44    GLUT API constants such as GLUT_STROKE_ROMAN have to get passed
  45    through a case statement to get mapped to the actual data structure
  46    address. */
  47 void*
  48 __glutFont(void *font)
  49 {
  50   switch((int)font) {
  51   case (int)GLUT_STROKE_ROMAN:
  52     return &glutStrokeRoman;
  53   case (int)GLUT_STROKE_MONO_ROMAN:
  54     return &glutStrokeMonoRoman;
  55   case (int)GLUT_BITMAP_9_BY_15:
  56     return &glutBitmap9By15;
  57   case (int)GLUT_BITMAP_8_BY_13:
  58     return &glutBitmap8By13;
  59   case (int)GLUT_BITMAP_TIMES_ROMAN_10:
  60     return &glutBitmapTimesRoman10;
  61   case (int)GLUT_BITMAP_TIMES_ROMAN_24:
  62     return &glutBitmapTimesRoman24;
  63   case (int)GLUT_BITMAP_HELVETICA_10:
  64     return &glutBitmapHelvetica10;
  65   case (int)GLUT_BITMAP_HELVETICA_12:
  66     return &glutBitmapHelvetica12;
  67   case (int)GLUT_BITMAP_HELVETICA_18:
  68     return &glutBitmapHelvetica18;
  69   }
  70   __glutFatalError("font not found.");
  71   /* NOTREACHED */
  72   return NULL; /* MSVC compiler complains if there is no return at all */
  73 }
  74
  75 int
  76 __glutGetTransparentPixel(Display * dpy, XVisualInfo * vinfo)
  77 {
  78   /* the transparent pixel on Win32 is always index number 0.  So if
  79      we put this routine in this file, we can avoid compiling the
  80      whole of layerutil.c which is where this routine normally comes
  81      from. */
  82   return 0;
  83 }
  84
  85 void
  86 __glutAdjustCoords(Window parent, int* x, int* y, int* width, int* height)
  87 {
  88   RECT rect;
  89
  90   /* adjust the window rectangle because Win32 thinks that the x, y,
  91      width & height are the WHOLE window (including decorations),
  92      whereas GLUT treats the x, y, width & height as only the CLIENT
  93      area of the window. */
  94   rect.left = *x; rect.top = *y;
  95   rect.right = *x + *width; rect.bottom = *y + *height;
  96
  97   /* must adjust the coordinates according to the correct style
  98      because depending on the style, there may or may not be
  99      borders. */
 100   AdjustWindowRect(&rect, WS_CLIPSIBLINGS | WS_CLIPCHILDREN |
 101                    (parent ? WS_CHILD : WS_OVERLAPPEDWINDOW),
 102                    FALSE);
 103   /* FALSE in the third parameter = window has no menu bar */
 104
 105   /* readjust if the x and y are offscreen */
 106   if(rect.left < 0) {
 107     *x = 0;
 108   } else {
 109     *x = rect.left;
 110   }
 111
 112   if(rect.top < 0) {
 113     *y = 0;
 114   } else {
 115     *y = rect.top;
 116   }
 117
 118   *width = rect.right - rect.left;      /* adjusted width */
 119   *height = rect.bottom - rect.top;     /* adjusted height */
 120 }
 121