prj/tech/libsrc/dev2d/ddevblt.c

   1 /*
   2  * $Source: x:/prj/tech/libsrc/dev2d/RCS/ddevblt.c $
   3  * $Revision: 1.2 $
   4  * $Author: TOML $
   5  * $Date: 1996/12/13 16:55:38 $
   6  *
   7  * Display device bitmap functions
   8  *
   9  * This file is part of the dev2d library.
  10  *
  11  */
  12
  13 #include <lg.h>
  14 #include <comtools.h>
  15 #include <appagg.h>
  16 #include <dispapi.h>
  17
  18 #include <grs.h>
  19 #include <grd.h>
  20 #include <gdbm.h>
  21 #include <comdfcn.h>
  22 #include <canvas.h>
  23 #include <bmftype.h>
  24 #include <indexmac.h>
  25
  26 void dispdev_ubitmap(grs_bitmap *bm, int x, int y)
  27 {
  28 #ifdef _WIN32
  29    // @Note (toml 12-13-96): this is costly, but for now is isolated
  30    // to DD in a window so it's probably okay.  Performance sensitive
  31    // clients can/should circumvent this function, or we need a
  32    // better protocol
  33    IDeviceBitmap * dst;
  34    IDeviceBitmap * src;
  35
  36    IDisplayDevice_FindBitmap(g_pDev2dDisplayDevice, &grd_canvas->bm, &dst);
  37    IDisplayDevice_FindBitmap(g_pDev2dDisplayDevice, bm, &src);
  38
  39    AssertMsg1(dst && src, "dispdev_ubitmap() requires 2 device bitmaps, had %d", (!!(dst) + !!(src)));
  40
  41    if (dst && src)
  42       IDeviceBitmap_SimpleBlt(dst, x, y, src);
  43
  44    SafeRelease(dst);
  45    SafeRelease(src);
  46 #else
  47    ushort old_canvas_flags, old_bitmap_flags;
  48    old_canvas_flags = grd_canvas->bm.flags;
  49    old_bitmap_flags = bm->flags;
  50
  51    bm->flags &= ~BMF_DEV_MUST_BLIT;
  52    grd_canvas->bm.flags &= ~BMF_DEV_MUST_BLIT;
  53
  54    gr_push_canvas(grd_canvas);
  55    gd_ubitmap(bm, x, y);
  56    gr_pop_canvas();
  57
  58    bm->flags = old_bitmap_flags;
  59    grd_canvas->bm.flags = old_canvas_flags;
  60 #endif
  61 }
  62
  63 #pragma off (unreferenced)
  64 gdubm_func *dispdev_ubitmap_expose(grs_bitmap *bm, int x, int y)
  65 {
  66    return dispdev_ubitmap;
  67 }
  68 #pragma on (unreferenced)
  69