prj/tech/libsrc/dev2d/context.h

   1 // $Header: x:/prj/tech/libsrc/dev2d/RCS/context.h 1.8 1997/01/27 11:20:25 KEVIN Exp $
   2
   3 #ifndef __CONTEXT_H
   4 #define __CONTEXT_H
   5 #include <grd.h>
   6 #include <bitmap.h>
   7
   8 #ifdef __cplusplus
   9 extern "C" {
  10 #endif
  11
  12 #define gr_min(x,y) ((x) < (y) ? (x) : (y))
  13 #define gr_max(x,y) ((x) > (y) ? (x) : (y))
  14
  15 #define gr_init_gc(c) \
  16 do {                                               \
  17    grs_canvas *__c = (c);                          \
  18    __c->gc=grd_defgc;                              \
  19    __c->gc.safe_clip.f.right=fix_make(__c->bm.w,0);\
  20    __c->gc.safe_clip.f.bot  =fix_make(__c->bm.h,0);\
  21    __c->gc.clip = __c->gc.safe_clip;               \
  22 } while (0)
  23
  24 /* macros for setting the clipping region of a specified canvas. */
  25 extern void gr_cset_fix_cliprect(grs_canvas* c, fix l, fix t, fix r, fix b);
  26
  27 #define gr_cset_cliprect(c, l, t, r, b) \
  28       gr_cset_fix_cliprect(c,fix_make(l,0),fix_make(t,0),fix_make(r,0),fix_make(b,0))
  29
  30 #define gr_set_cliprect(l, t, r, b) \
  31          gr_cset_cliprect(grd_canvas,l,t,r,b)
  32
  33 #define gr_set_fix_cliprect(l, t, r, b) \
  34          gr_cset_fix_cliprect(grd_canvas,l,t,r,b)
  35
  36 extern void gr_safe_cset_fix_cliprect(grs_canvas* c, fix l, fix t, fix r, fix b);
  37
  38 #define gr_safe_cset_cliprect(canv, l, t, r, b)        \
  39       gr_safe_cset_fix_cliprect(canv,fix_make(l,0),fix_make(t,0),fix_make(r,0),fix_make(b,0))
  40
  41 #define gr_safe_set_cliprect(l, t, r, b) \
  42       gr_safe_cset_cliprect(grd_canvas,l,t,r,b)
  43
  44 #define gr_safe_set_fix_cliprect(l, t, r, b) \
  45       gr_safe_cset_fix_cliprect(grd_canvas,l,t,r,b)
  46
  47 #define gr_init_fix_clip(clip, l, t, r, b)                \
  48    (clip)->f.sten=NULL, \
  49    (clip)->f.left=(l), (clip)->f.top=(t), \
  50    (clip)->f.right=(r),(clip)->f.bot=(b)
  51
  52 #define gr_set_clipmask(t,b,mask) \
  53    grd_clip.top=(t), grd_clip.bot=(b), \
  54    grd_clip.sten = (mask)
  55
  56 /* macros for getting parts of the graphic context of the current canvas. */
  57 #define gr_set_fcolor(color) (grd_canvas->gc.fcolor=color)
  58 #define gr_set_fcolor8(col8) \
  59 do {                               \
  60    switch (grd_bm.type) {          \
  61    case BMT_FLAT16:                \
  62    case BMT_BANK16:                \
  63       gr_set_fcolor(               \
  64          ((ushort *)pixpal)[col8]);\
  65       break;                       \
  66    default:                        \
  67       gr_set_fcolor(col8);         \
  68       break;                       \
  69    }                               \
  70 } while (0)
  71 #define gr_get_fcolor() (grd_canvas->gc.fcolor)
  72 #define gr_set_bcolor(color) (grd_canvas->gc.bcolor=color)
  73 #define gr_get_bcolor() (grd_canvas->gc.bcolor)
  74 #define gr_set_text_attr(attr) (grd_canvas->gc.text_attr=attr)
  75 #define gr_get_text_attr() (grd_canvas->gc.text_attr)
  76
  77 #define gr_set_fill_type(_ft) (grd_canvas->gc.fill_type = _ft)
  78 #define gr_get_fill_type() (grd_canvas->gc.fill_type)
  79
  80 #define gr_set_fill_parm(parm) \
  81    (grd_canvas->gc.fill_parm=(long)(parm))
  82 #define gr_get_fill_parm() (grd_canvas->gc.fill_parm)
  83
  84 #define gr_cset_clipmask(canvas,t,b,mask) \
  85    (canvas)->gc.clip.i.top=(t), (canvas)->gc.clip.i.bot=(b), \
  86    (canvas)->gc.clip.i.sten = (mask)
  87 #define gr_cset_fcolor(canvas,color) ((canvas)->gc.fcolor=color)
  88 #define gr_cget_fcolor(canvas) ((canvas)->gc.fcolor)
  89 #define gr_cset_bcolor(canvas,color) ((canvas)->gc.bcolor=color)
  90 #define gr_cget_bcolor(canvas) ((canvas)->gc.bcolor)
  91 #define gr_cset_font(canvas,fnt) ((canvas)->gc.font=fnt)
  92 #define gr_cget_font(canvas) ((canvas)->gc.font)
  93
  94 /* macros for getting part of the clipping region of the current canvas. */
  95 #define gr_get_cliprect(l,t,r,b) (*(l)=grd_clip.left,*(t)=grd_clip.top, \
  96    *(r)=grd_clip.right,*(b)=grd_clip.bot)
  97 #define gr_get_fix_cliprect(l,t,r,b) (*(l)=grd_fix_clip.left, \
  98    *(t)=grd_fix_clip.top,*(r)=grd_fix_clip.right,*(b)=grd_fix_clip.bot)
  99 #define gr_get_clip_l() (grd_clip.left)
 100 #define gr_get_clip_t() (grd_clip.top)
 101 #define gr_get_clip_r() (grd_clip.right)
 102 #define gr_get_clip_b() (grd_clip.bot)
 103 #define gr_get_fclip_l() (grd_fix_clip.left)
 104 #define gr_get_fclip_t() (grd_fix_clip.top)
 105 #define gr_get_fclip_r() (grd_fix_clip.right)
 106 #define gr_get_fclip_b() (grd_fix_clip.bot)
 107
 108 /* How about some handy macros to save and restore a cliprect */
 109 #define gr_save_cliprect(save)  *(save) = grd_clip
 110 #define gr_restore_cliprect(save)  grd_clip = *(save)
 111
 112 /* macros for getting part of the clipping region of a specified canvas. */
 113 #define gr_cget_cliprect(c,l,t,r,b) (\
 114    *(l)=(c)->gc.clip.i.left,*(t)=(c)->gc.clip.i.top,\
 115    *(r)=(c)->gc.clip.i.right,*(b)=(c)->gc.clip.i.bot)
 116 #define gr_cget_fix_cliprect(l,t,r,b) (\
 117    *(l)=(c)->gc.clip.f.left,*(t)=(c)->gc.clip.f.top,\
 118    *(r)=(c)->gc.clip.f.right,*(b)=(c)->gc.clip.f.bot)
 119 #define gr_cget_clip_l(c) ((c)->gc.clip.i.left)
 120 #define gr_cget_clip_t(c) ((c)->gc.clip.i.top)
 121 #define gr_cget_clip_r(c) ((c)->gc.clip.i.right)
 122 #define gr_cget_clip_b(c) ((c)->gc.clip.i.bot)
 123 #define gr_cget_fclip_l(c) ((c)->gc.clip.f.left)
 124 #define gr_cget_fclip_t(c) ((c)->gc.clip.f.top)
 125 #define gr_cget_fclip_r(c) ((c)->gc.clip.f.right)
 126 #define gr_cget_fclip_b(c) ((c)->gc.clip.f.bot)
 127
 128 #define gr_set_unpack_buf(buf) (grd_unpack_buf = (buf))
 129 #define gr_get_unpack_buf() (grd_unpack_buf)
 130 #define gr_set_unpack_buf_size(buf_size) (grd_unpack_buf_size = (buf_size))
 131 #define gr_get_unpack_buf_size() (grd_unpack_buf_size)
 132 #define gr_set_light_tab(ltab) (grd_light_table = (ltab))
 133 #define gr_get_light_tab() (grd_light_table)
 134 #define gr_set_light_tab_size(ltab_size) (grd_light_table_size = (ltab_size))
 135 #define gr_get_light_tab_size() (grd_light_table_size)
 136
 137 #ifdef __cplusplus
 138 };
 139 #endif
 140 #endif /* !__CTXMAC */