graphics/ttydrv/bitmap.c

   1 /*
   2  * TTY bitmap driver
   3  *
   4  * Copyright 1999 Patrik Stridvall
   5  */
   6
   7 #include "bitmap.h"
   8 #include "dc.h"
   9 #include "ttydrv.h"
  10 #include "winbase.h"
  11 #include "debugtools.h"
  12
  13 DEFAULT_DEBUG_CHANNEL(ttydrv)
  14
  15 /**********************************************************************/
  16
  17 static LONG TTYDRV_DC_GetBitmapBits(BITMAPOBJ *bitmap, void *bits, LONG count);
  18 static LONG TTYDRV_DC_SetBitmapBits(BITMAPOBJ *bitmap, void *bits, LONG count);
  19
  20 /***********************************************************************
  21  *              TTYDRV_DC_AllocBitmap
  22  */
  23 TTYDRV_PHYSBITMAP *TTYDRV_DC_AllocBitmap(BITMAPOBJ *bitmap)
  24 {
  25   TTYDRV_PHYSBITMAP *physBitmap;
  26
  27   if(!(physBitmap = HeapAlloc(GetProcessHeap(), 0, sizeof(TTYDRV_PHYSBITMAP)))) {
  28     ERR("Can't alloc TTYDRV_PHYSBITMAP\n");
  29     return NULL;
  30   }
  31
  32   bitmap->physBitmap = physBitmap;
  33   bitmap->funcs = DRIVER_FindDriver("DISPLAY");
  34
  35   return physBitmap;
  36 }
  37
  38 /***********************************************************************
  39  *           TTYDRV_DC_BitmapBits
  40  */
  41 LONG TTYDRV_DC_BitmapBits(HBITMAP hbitmap, void *bits, LONG count, WORD flags)
  42 {
  43   BITMAPOBJ *bitmap;
  44   LONG result;
  45
  46   if(!(bitmap = (BITMAPOBJ *) GDI_GetObjPtr(hbitmap, BITMAP_MAGIC)))
  47     return FALSE;
  48
  49   if(flags == DDB_GET)
  50     result = TTYDRV_DC_GetBitmapBits(bitmap, bits, count);
  51   else if(flags == DDB_SET)
  52     result = TTYDRV_DC_SetBitmapBits(bitmap, bits, count);
  53   else {
  54     ERR("Unknown flags value %d\n", flags);
  55     result = 0;
  56   }
  57
  58   GDI_HEAP_UNLOCK(hbitmap);
  59   return result;
  60 }
  61
  62 /***********************************************************************
  63  *              TTYDRV_DC_CreateBitmap
  64  */
  65 BOOL TTYDRV_DC_CreateBitmap(HBITMAP hbitmap)
  66 {
  67   TTYDRV_PHYSBITMAP *physBitmap;
  68   BITMAPOBJ *bitmap;
  69
  70   TRACE("(0x%04x)\n", hbitmap);
  71
  72   if(!(bitmap = (BITMAPOBJ *) GDI_GetObjPtr(hbitmap, BITMAP_MAGIC)))
  73     return FALSE;
  74
  75   if(!(physBitmap = TTYDRV_DC_AllocBitmap(bitmap))) {
  76     GDI_HEAP_UNLOCK(hbitmap);
  77     return FALSE;
  78   }
  79
  80   /* Set bitmap bits */
  81   if(bitmap->bitmap.bmBits) {
  82     TTYDRV_DC_BitmapBits(hbitmap, bitmap->bitmap.bmBits,
  83                          bitmap->bitmap.bmHeight * bitmap->bitmap.bmWidthBytes,
  84                          DDB_SET );
  85   }
  86
  87   GDI_HEAP_UNLOCK(hbitmap);
  88
  89   return TRUE;
  90 }
  91
  92 /***********************************************************************
  93  *              TTYDRV_DC_BITMAP_DeleteObject
  94  */
  95 BOOL TTYDRV_DC_BITMAP_DeleteObject(HBITMAP hbitmap, BITMAPOBJ *bitmap)
  96 {
  97   TRACE("(0x%04x, %p)\n", hbitmap, bitmap);
  98
  99   HeapFree(GetProcessHeap(), 0, bitmap->physBitmap);
 100   bitmap->physBitmap = NULL;
 101   bitmap->funcs = NULL;
 102
 103   return TRUE;
 104 }
 105
 106 /***********************************************************************
 107  *              TTYDRV_DC_GetBitmapBits
 108  */
 109 static LONG TTYDRV_DC_GetBitmapBits(BITMAPOBJ *bitmap, void *bits, LONG count)
 110 {
 111   FIXME("(%p, %p, %ld): stub\n", bitmap, bits, count);
 112
 113   memset(bits, 0, count);
 114
 115   return count;
 116 }
 117
 118 /***********************************************************************
 119  *              TTYDRV_DC_BITMAP_SelectObject
 120  */
 121 HBITMAP TTYDRV_DC_BITMAP_SelectObject(DC *dc, HBITMAP hbitmap, BITMAPOBJ *bitmap)
 122 {
 123   HBITMAP hPreviousBitmap;
 124
 125   TRACE("(%p, 0x%04x, %p)\n", dc, hbitmap, bitmap);
 126
 127   if(!(dc->w.flags & DC_MEMORY))
 128     return 0;
 129
 130   /* Assure that the bitmap device dependent */
 131   if(!bitmap->physBitmap && !TTYDRV_DC_CreateBitmap(hbitmap))
 132     return 0;
 133
 134   if(bitmap->funcs != dc->funcs) {
 135     ERR("Trying to select a non-TTY DDB into a TTY DC\n");
 136     return 0;
 137   }
 138
 139   dc->w.totalExtent.left   = 0;
 140   dc->w.totalExtent.top    = 0;
 141   dc->w.totalExtent.right  = bitmap->bitmap.bmWidth;
 142   dc->w.totalExtent.bottom = bitmap->bitmap.bmHeight;
 143
 144   /* FIXME: Should be done in the common code instead */
 145   if(dc->w.hVisRgn) {
 146     SetRectRgn(dc->w.hVisRgn, 0, 0,
 147                bitmap->bitmap.bmWidth, bitmap->bitmap.bmHeight);
 148   } else {
 149     HRGN hrgn;
 150
 151     if(!(hrgn = CreateRectRgn(0, 0, bitmap->bitmap.bmWidth, bitmap->bitmap.bmHeight)))
 152       return 0;
 153
 154     dc->w.hVisRgn = hrgn;
 155   }
 156
 157   hPreviousBitmap = dc->w.hBitmap;
 158   dc->w.hBitmap = hbitmap;
 159
 160   return hPreviousBitmap;
 161 }
 162
 163 /***********************************************************************
 164  *              TTYDRV_DC_SetBitmapBits
 165  */
 166 static LONG TTYDRV_DC_SetBitmapBits(BITMAPOBJ *bitmap, void *bits, LONG count)
 167 {
 168   FIXME("(%p, %p, %ld): semistub\n", bitmap, bits, count);
 169
 170   return count;
 171 }