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

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