181 lines
5.7 KiB
C
181 lines
5.7 KiB
C
/*
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* Copyright © 1999 Keith Packard
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*
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* Permission to use, copy, modify, distribute, and sell this software and its
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* documentation for any purpose is hereby granted without fee, provided that
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* the above copyright notice appear in all copies and that both that
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* copyright notice and this permission notice appear in supporting
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* documentation, and that the name of Keith Packard not be used in
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* advertising or publicity pertaining to distribution of the software without
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* specific, written prior permission. Keith Packard makes no
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* representations about the suitability of this software for any purpose. It
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* is provided "as is" without express or implied warranty.
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*
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* KEITH PACKARD DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
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* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
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* EVENT SHALL KEITH PACKARD BE LIABLE FOR ANY SPECIAL, INDIRECT OR
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* CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
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* DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
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* TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
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* PERFORMANCE OF THIS SOFTWARE.
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*/
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#ifndef _SISDRAW_H_
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#define _SISDRAW_H_
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#define SetupSis(s) KdScreenPriv(s); \
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sisCardInfo(pScreenPriv); \
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SisPtr sis = sisc->sis
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#define SIS_CMD_BITBLT (0)
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#define SIS_CMD_COLOR_EXPAND (1)
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#define SIS_CMD_ENH_COLOR_EXPAND (2)
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#define SIS_CMD_MULTI_SCANLINE (3)
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#define SIS_CMD_LINE (4)
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#define SIS_CMD_TRAPEZOID (5)
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#define SIS_CMD_TRANSPARENT_BITBLT (6)
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#define SIS_CMD_SRC_SCREEN (0 << 4)
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#define SIS_CMD_SRC_CPU (1 << 4)
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#define SIS_CMD_PAT_FG (0 << 6)
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#define SIS_CMD_PAT_PATTERN (1 << 6)
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#define SIS_CMD_PAT_MONO (2 << 6)
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/* 8->15 rop */
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#define SIS_CMD_DEC_X (0 << 16)
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#define SIS_CMD_INC_X (1 << 16)
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#define SIS_CMD_DEC_Y (0 << 17)
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#define SIS_CMD_INC_Y (1 << 17)
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#define SIS_CMD_RECT_CLIP_DISABLE (0 << 18)
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#define SIS_CMD_RECT_CLIP_ENABLE (1 << 18)
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#define SIS_CMD_OPAQUE (0 << 20)
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#define SIS_CMD_TRANSPARENT (1 << 20)
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#define SIS_CMD_RECT_CLIP_MERGE (0 << 26)
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#define SIS_CMD_RECT_CLIP_DONT_MERGE (1 << 26)
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#define SIS_STAT_2D_IDLE (1 << 31)
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#define SIS_STAT_3D_IDLE (1 << 30)
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#define SIS_STAT_EMPTY (1 << 29)
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#define SIS_STAT_CPU_BITBLT (0xf << 24)
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#define SIS_STAT_ENH_COLOR_EXPAND (1 << 23)
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#define SIS_STAT_AVAIL (0x1fff)
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extern CARD8 sisPatRop[16];
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extern CARD8 sisBltRop[16];
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#define _sisSetSolidRect(sis,pix,alu,cmd) {\
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(sis)->u.general.pattern_fg = (pix); \
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(cmd) = (SIS_CMD_BITBLT | \
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SIS_CMD_SRC_SCREEN | \
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SIS_CMD_PAT_FG | \
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(sisPatRop[alu] << 8) | \
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SIS_CMD_INC_X | \
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SIS_CMD_INC_Y | \
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SIS_CMD_RECT_CLIP_DISABLE | \
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SIS_CMD_OPAQUE | \
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SIS_CMD_RECT_CLIP_DONT_MERGE); \
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}
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#define _sisClip(sis,x1,y1,x2,y2) { \
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(sis)->u.general.clip_left = (x1); \
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(sis)->u.general.clip_top = (y1); \
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(sis)->u.general.clip_right = (x2); \
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(sis)->u.general.clip_bottom = (y2); \
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}
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#define _sisRect(sis,x,y,w,h,cmd) { \
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(sis)->u.general.dst_x = (x); \
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(sis)->u.general.dst_y = (y); \
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(sis)->u.general.rect_width = (w); \
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(sis)->u.general.rect_height = (h); \
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(sis)->u.general.command = (cmd); \
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}
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#define _sisSetTransparentPlaneBlt(sis, alu, fg, cmd) { \
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(sis)->u.general.src_fg = (fg); \
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(cmd) = (SIS_CMD_ENH_COLOR_EXPAND | \
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SIS_CMD_SRC_CPU | \
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SIS_CMD_PAT_FG | \
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(sisBltRop[alu] << 8) | \
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SIS_CMD_INC_X | \
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SIS_CMD_INC_Y | \
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SIS_CMD_RECT_CLIP_DISABLE | \
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SIS_CMD_TRANSPARENT | \
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SIS_CMD_RECT_CLIP_DONT_MERGE); \
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}
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#define _sisSetOpaquePlaneBlt(sis, alu, fg, bg, cmd) { \
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(sis)->u.general.src_fg = (fg); \
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(sis)->u.general.src_bg = (bg); \
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(cmd) = (SIS_CMD_ENH_COLOR_EXPAND | \
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SIS_CMD_SRC_CPU | \
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SIS_CMD_PAT_FG | \
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(sisBltRop[alu] << 8) | \
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SIS_CMD_INC_X | \
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SIS_CMD_INC_Y | \
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SIS_CMD_RECT_CLIP_DISABLE | \
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SIS_CMD_OPAQUE | \
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SIS_CMD_RECT_CLIP_DONT_MERGE); \
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}
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#define _sisPlaneBlt(sis,x,y,w,h,cmd) _sisSolidRect(sis,x,y,w,h,cmd)
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#define _sisSetBlt(sis,alu,cmd) { \
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(sis)->u.general.src_base = (sis)->u.general.dst_base; \
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(sis)->u.general.src_pitch = (sis)->u.general.dst_pitch; \
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(cmd) = (SIS_CMD_RECT_CLIP_DONT_MERGE |\
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(sisBltRop[alu] << 8) |\
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SIS_CMD_PAT_FG |\
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SIS_CMD_SRC_SCREEN |\
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SIS_CMD_BITBLT); \
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}
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#define _sisBlt(sis,sx,sy,dx,dy,w,h,cmd) { \
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(sis)->u.general.src_x = (sx); \
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(sis)->u.general.src_y = (sy); \
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(sis)->u.general.dst_x = (dx); \
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(sis)->u.general.dst_y = (dy); \
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(sis)->u.general.rect_width = (w); \
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(sis)->u.general.rect_height = (h); \
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(sis)->u.general.command = (cmd); \
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}
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#define SIS_IE (SIS_STAT_2D_IDLE|SIS_STAT_EMPTY)
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#define _sisWaitIdleEmpty(sis) \
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while (((sis)->u.general.status & SIS_IE) != SIS_IE)
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/*
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* Ok, so the Sis530 is broken -- it expects bitmaps to come MSB bit order,
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* but it's willing to take them in LSB byte order. These macros
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* flip bits around without flipping bytes. Instead of using a table
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* and burning memory bandwidth, do them in place with the CPU.
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*/
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/* The MIPS compiler automatically places these constants in registers */
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#define SisInvertBits32(v) { \
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v = ((v & 0x55555555) << 1) | ((v >> 1) & 0x55555555); \
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v = ((v & 0x33333333) << 2) | ((v >> 2) & 0x33333333); \
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v = ((v & 0x0f0f0f0f) << 4) | ((v >> 4) & 0x0f0f0f0f); \
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}
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#define SisInvertBits16(v) { \
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v = ((v & 0x5555) << 1) | ((v >> 1) & 0x5555); \
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v = ((v & 0x3333) << 2) | ((v >> 2) & 0x3333); \
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v = ((v & 0x0f0f) << 4) | ((v >> 4) & 0x0f0f); \
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}
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#define SisInvertBits8(v) { \
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v = ((v & 0x55) << 1) | ((v >> 1) & 0x55); \
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v = ((v & 0x33) << 2) | ((v >> 2) & 0x33); \
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v = ((v & 0x0f) << 4) | ((v >> 4) & 0x0f); \
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}
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#endif
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