src/mesa/drivers/dri/ffb/ffb_vb.h

   1 /* $XFree86: xc/lib/GL/mesa/src/drv/ffb/ffb_vb.h,v 1.2 2002/02/22 21:32:59 dawes Exp $ */
   2
   3 #ifndef _FFB_VB_H
   4 #define _FFB_VB_H
   5
   6 #include "mtypes.h"
   7 #include "macros.h"
   8 #include "tnl/t_context.h"
   9 #include "swrast/swrast.h"
  10
  11 #define __FFB_2_30_FIXED_SCALE          1073741824.0f
  12 #define FFB_2_30_FLOAT_TO_FIXED(X)      \
  13         (IROUND((X) * fmesa->ffb_2_30_fixed_scale))
  14 #define FFB_2_30_FIXED_TO_FLOAT(X)      \
  15         (((GLfloat)(X)) * fmesa->ffb_one_over_2_30_fixed_scale)
  16
  17 #define __FFB_16_16_FIXED_SCALE         65536.0f
  18 #define FFB_16_16_FLOAT_TO_FIXED(X)     \
  19         (IROUND((X) * fmesa->ffb_16_16_fixed_scale))
  20 #define FFB_16_16_FIXED_TO_FLOAT(X)     \
  21         (((GLfloat)(X)) * fmesa->ffb_one_over_16_16_fixed_scale)
  22
  23 #define FFB_Z_FROM_FLOAT(VAL)     FFB_2_30_FLOAT_TO_FIXED(VAL)
  24 #define FFB_Z_TO_FLOAT(VAL)       FFB_2_30_FIXED_TO_FLOAT(VAL)
  25 #define FFB_XY_FROM_FLOAT(VAL)    FFB_16_16_FLOAT_TO_FIXED(VAL)
  26 #define FFB_XY_TO_FLOAT(VAL)      FFB_16_16_FIXED_TO_FLOAT(VAL)
  27
  28 #define FFB_UBYTE_FROM_COLOR(VAL) ((IROUND((VAL) * fmesa->ffb_ubyte_color_scale)))
  29
  30 #define FFB_PACK_CONST_UBYTE_ARGB_COLOR(C)              \
  31         ((FFB_UBYTE_FROM_COLOR(C.alpha) << 24) |        \
  32          (FFB_UBYTE_FROM_COLOR(C.blue)  << 16) |        \
  33          (FFB_UBYTE_FROM_COLOR(C.green) <<  8) |        \
  34          (FFB_UBYTE_FROM_COLOR(C.red)   <<  0))
  35
  36 #define FFB_COLOR_FROM_FLOAT(VAL) FFB_2_30_FLOAT_TO_FIXED(VAL)
  37
  38 #define _FFB_NEW_VERTEX (_DD_NEW_TRI_LIGHT_TWOSIDE)
  39
  40 extern void ffbDDSetupInit(void);
  41 extern void ffbChooseVertexState(GLcontext *);
  42 extern void ffbInitVB( GLcontext *ctx );
  43 extern void ffbFreeVB( GLcontext *ctx );
  44
  45 #endif /* !(_FFB_VB_H) */