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

   1
   2 #ifndef _FFB_FIFO_H
   3 #define _FFB_FIFO_H
   4
   5 #define FFBFifo(__fmesa, __n) \
   6 do {    ffbScreenPrivate *__fScrn = (__fmesa)->ffbScreen; \
   7         int __cur_slots = __fScrn->fifo_cache; \
   8         if ((__cur_slots - (__n)) < 0) { \
   9                 ffb_fbcPtr __ffb = __fmesa->regs; \
  10                 do { __cur_slots = (((int)__ffb->ucsr & FFB_UCSR_FIFO_MASK) - 4); \
  11                 } while ((__cur_slots - (__n)) < 0); \
  12         } (__fScrn)->fifo_cache = (__cur_slots - (__n)); \
  13 } while(0)
  14
  15 #define FFBWait(__fmesa, __ffb) \
  16 do {    ffbScreenPrivate *__fScrn = (__fmesa)->ffbScreen; \
  17         if (__fScrn->rp_active) { \
  18                 unsigned int __regval = (__ffb)->ucsr; \
  19                 while((__regval & FFB_UCSR_ALL_BUSY) != 0) { \
  20                         __regval = (__ffb)->ucsr; \
  21                 } \
  22                 __fScrn->fifo_cache = ((int)(__regval & FFB_UCSR_FIFO_MASK)) - 4; \
  23                 __fScrn->rp_active = 0; \
  24         } \
  25 } while(0)
  26
  27 #endif /* !(_FFB_FIFO_H) */