/* $XConsortium: pvgaBitBlt.c,v 1.4 95/01/23 15:35:19 kaleb Exp $ */ /* $XFree86: xc/programs/Xserver/hw/xfree86/vga256/drivers/pvga1/pvgaBitBlt.c,v 3.4 1995/01/28 17:09:16 dawes Exp $ */ /* * Copyright 1990,91 by Thomas Roell, Dinkelscherben, Germany. * * Permission to use, copy, modify, distribute, and sell this software and its * documentation for any purpose is hereby granted without fee, provided that * the above copyright notice appear in all copies and that both that * copyright notice and this permission notice appear in supporting * documentation, and that the name of Thomas Roell not be used in * advertising or publicity pertaining to distribution of the software without * specific, written prior permission. Thomas Roell makes no representations * about the suitability of this software for any purpose. It is provided * "as is" without express or implied warranty. * * THOMAS ROELL DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO * EVENT SHALL THOMAS ROELL BE LIABLE FOR ANY SPECIAL, INDIRECT OR * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR * PERFORMANCE OF THIS SOFTWARE. * * Author: Thomas Roell, roell@informatik.tu-muenchen.de * * /proj/X11/mit/server/ddx/at386/vga/RCS/vgaBitBlt.c,v 1.5 91/02/10 16:44:40 root Exp */ /* 90C31 accel code: Mike Tierney */ /* WD90C33 accel code: Bill Morgart */ #include "X.h" #include "Xmd.h" #include "Xproto.h" #include "gcstruct.h" #include "windowstr.h" #include "scrnintstr.h" #include "pixmapstr.h" #include "regionstr.h" #include "cfb.h" #include "cfbmskbits.h" #include "cfb8bit.h" #include "fastblt.h" #include "mergerop.h" #include "vgaBank.h" #include "compiler.h" #include "xf86.h" #include "vga.h" #include "paradise.h" void pvgaBitBlt(pdstBase, psrcBase, widthSrc, widthDst, x, y, x1, y1, w, h, xdir, ydir, alu, planemask) unsigned char *psrcBase, *pdstBase; /* start of src and dst bitmaps */ int widthSrc, widthDst; int x, y, x1, y1, w, h; int xdir, ydir; int alu; unsigned long planemask; { if (WDchipset == WD90C31) { wd90c31BitBlt(pdstBase, psrcBase, widthSrc, widthDst, x, y, x1, y1, w, h, xdir, ydir, alu, planemask, BLT_SRC_COLR, 0); WAIT_BLIT; /* must wait, since memory writes can mess up as well */ } else if (WDchipset == WD90C33) { wd90c33BitBlt(pdstBase, psrcBase, widthSrc, widthDst, x, y, x1, y1, w, h, xdir, ydir, alu, planemask, COLOR_FORMAT, 0); } } /************************************************/ /* */ /* WD90C31 HARDWARE BITBLT FUNCTION */ /* */ /************************************************/ void wd90c31BitBlt(unsigned char *psrcBase, unsigned char *pdstBase, int widthSrc, int widthDst, int x, int y, int x1, int y1, int w, int h, int xdir, int ydir, int alu, unsigned long planemask, unsigned long source_format, unsigned long foreground_color) { int psrc, pdst; int blit_direct; if (xdir == 1 && ydir == 1) /* left to right */ /* top to bottom */ { psrc = (y * widthSrc) + x; pdst = (y1 * widthDst) + x1; blit_direct = 0x0; } else /* right to left */ /* bottom to top */ { psrc = ((y + h - 1) * widthSrc) + x + w - 1; pdst = ((y1 + h - 1 ) * widthDst) + x1 + w - 1; blit_direct = BLT_DIRECT; } WAIT_BLIT; SET_BLT_SRC_LOW ((psrc & 0xFFF)); SET_BLT_SRC_HGH ((psrc >> 12)); SET_BLT_DST_LOW ((pdst & 0xFFF)); SET_BLT_DST_HGH ((pdst >> 12)); SET_BLT_ROW_PTCH (widthDst); SET_BLT_DIM_X (w); SET_BLT_DIM_Y (h); SET_BLT_MASK ((planemask & 0xFF)); SET_BLT_RAS_OP ((alu << 8)); SET_BLT_CNTRL2 (0x00); if (source_format == BLT_SRC_FCOL) SET_BLT_FOR_COLR (foreground_color & 0xFF); SET_BLT_CNTRL1 (BLT_ACT_STAT | BLT_PACKED | source_format | blit_direct); } /************************************************/ /* */ /* WD90C33 HARDWARE BITBLT FUNCTION */ /* */ /************************************************/ void wd90c33BitBlt( unsigned char *psrcBase, unsigned char *pdstBase, int widthSrc, int widthDst, int x, int y, int x1, int y1, int w, int h, int xdir, int ydir, int alu, unsigned long planemask, unsigned long source_format, unsigned long foreground_color) { int xSrc, ySrc, xDst, yDst; int blit_direction = X_DIR_POS | Y_DIR_POS; int de_stat; /*******************************/ /* */ /* set the operation direction */ /* and the starting corner */ /* */ /*******************************/ xSrc = x; xDst = x1; if (xdir == -1) { blit_direction |= X_DIR_NEG; xSrc += w - 1; xDst += w - 1; } ySrc = y; yDst = y1; if (ydir == -1) { blit_direction |= Y_DIR_NEG; ySrc += h - 1; yDst += h - 1; } /*********************************/ /* */ /* Access control register set 2 */ /* */ /*********************************/ outw(EXT_REG_ACCESS_PORT, (EXT_REG_BLK(DRAWING_ENGINE_REG2) | EXT_REG_AUTO_INCR_DIS)); /* Wait for room in the command buffer */ C33_WAIT_COMMAND_BUFFER(4); /* set map base to 0 */ SET_EXT_REG(DR_ENG_MAP_BASE, 0x00); /* set the row pitch */ SET_EXT_REG(DR_ENG_ROW_PITCH, widthDst); /* set the mask */ SET_EXT_REG(DR_ENG_MASK_0, planemask & 0xff); if (source_format == FIXED_COLOR) /* set forground color */ SET_EXT_REG(DR_ENG_FORE_COLOR_0, foreground_color & 0xff); /*********************************/ /* */ /* Access control register set 1 */ /* */ /*********************************/ outw(EXT_REG_ACCESS_PORT, (EXT_REG_BLK(DRAWING_ENGINE_REG1) | EXT_REG_AUTO_INCR_DIS)); /* Wait for room in the command buffer */ C33_WAIT_COMMAND_BUFFER(8); /* set (x,y) src */ SET_EXT_REG(DR_ENG_X_SRC, xSrc); SET_EXT_REG(DR_ENG_Y_SRC, ySrc); /* set (x,y) dst */ SET_EXT_REG(DR_ENG_X_DST, xDst); SET_EXT_REG(DR_ENG_Y_DST, yDst); /* set x,y dimensions */ SET_EXT_REG(DR_ENG_X_DIM, w - 1); SET_EXT_REG(DR_ENG_Y_DIM, h - 1); /* set the (top, left) clip position */ SET_EXT_REG(DR_ENG_LEFT_CLIP, x1); SET_EXT_REG(DR_ENG_TOP_CLIP, y1); /* Wait for room in the command buffer */ C33_WAIT_COMMAND_BUFFER(5); /* set the (bottom, right) clip position */ SET_EXT_REG(DR_ENG_BOTTOM_CLIP, y1 + h); SET_EXT_REG(DR_ENG_RIGHT_CLIP, x1 + w); /* set the raster op */ SET_EXT_REG(DR_ENG_RAS_OP, (alu << 8)); /* set the depth to 8 bits per pixel */ SET_EXT_REG(DR_ENG_CNTRL2_INDEX, PIXEL_DEPTH(BITS_8)); /* Now let's do a bit blit operation */ SET_EXT_REG(DR_ENG_CNTRL1_INDEX, (DRAWING_MODE(BITBLT) | blit_direction | SRC_SCREEN_MEMORY | source_format | PATTERN_NOT_USED | DEST_SCREEN_MEMORY)); /******************************/ /* */ /* Wait for this op to finish */ /* */ /******************************/ C33_WAIT_DRAWING_ENGINE; }