m68k: Atari fb revival
Update the atari fb to 2.6 by Michael Schmitz, Reformatting and rewrite of bit plane functions by Roman Zippel, A few more fixes by Geert Uytterhoeven. Signed-off-by: Michael Schmitz <schmitz@debian.org> Signed-off-by: Roman Zippel <zippel@linux-m68k.org> Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Michael Schmitz
Linus Torvalds
Родитель
c04cb856e2
Коммит
a100501212
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@ -389,7 +389,10 @@ config FB_ARC
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config FB_ATARI
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bool "Atari native chipset support"
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depends on (FB = y) && ATARI && BROKEN
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depends on (FB = y) && ATARI
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select FB_CFB_FILLRECT
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select FB_CFB_COPYAREA
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select FB_CFB_IMAGEBLIT
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help
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This is the frame buffer device driver for the builtin graphics
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chipset found in Ataris.
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@ -63,7 +63,8 @@ obj-$(CONFIG_FB_TCX) += tcx.o sbuslib.o
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obj-$(CONFIG_FB_LEO) += leo.o sbuslib.o
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obj-$(CONFIG_FB_SGIVW) += sgivwfb.o
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obj-$(CONFIG_FB_ACORN) += acornfb.o
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obj-$(CONFIG_FB_ATARI) += atafb.o
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obj-$(CONFIG_FB_ATARI) += atafb.o c2p.o atafb_mfb.o \
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atafb_iplan2p2.o atafb_iplan2p4.o atafb_iplan2p8.o
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obj-$(CONFIG_FB_MAC) += macfb.o
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obj-$(CONFIG_FB_HGA) += hgafb.o
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obj-$(CONFIG_FB_IGA) += igafb.o
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Разница между файлами не показана из-за своего большого размера
Загрузить разницу
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@ -0,0 +1,36 @@
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#ifndef _VIDEO_ATAFB_H
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#define _VIDEO_ATAFB_H
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void atafb_mfb_copyarea(struct fb_info *info, u_long next_line, int sy, int sx, int dy,
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int dx, int height, int width);
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void atafb_mfb_fillrect(struct fb_info *info, u_long next_line, u32 color,
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int sy, int sx, int height, int width);
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void atafb_mfb_linefill(struct fb_info *info, u_long next_line,
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int dy, int dx, u32 width,
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const u8 *data, u32 bgcolor, u32 fgcolor);
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void atafb_iplan2p2_copyarea(struct fb_info *info, u_long next_line, int sy, int sx, int dy,
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int dx, int height, int width);
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void atafb_iplan2p2_fillrect(struct fb_info *info, u_long next_line, u32 color,
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int sy, int sx, int height, int width);
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void atafb_iplan2p2_linefill(struct fb_info *info, u_long next_line,
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int dy, int dx, u32 width,
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const u8 *data, u32 bgcolor, u32 fgcolor);
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void atafb_iplan2p4_copyarea(struct fb_info *info, u_long next_line, int sy, int sx, int dy,
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int dx, int height, int width);
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void atafb_iplan2p4_fillrect(struct fb_info *info, u_long next_line, u32 color,
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int sy, int sx, int height, int width);
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void atafb_iplan2p4_linefill(struct fb_info *info, u_long next_line,
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int dy, int dx, u32 width,
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const u8 *data, u32 bgcolor, u32 fgcolor);
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void atafb_iplan2p8_copyarea(struct fb_info *info, u_long next_line, int sy, int sx, int dy,
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int dx, int height, int width);
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void atafb_iplan2p8_fillrect(struct fb_info *info, u_long next_line, u32 color,
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int sy, int sx, int height, int width);
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void atafb_iplan2p8_linefill(struct fb_info *info, u_long next_line,
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int dy, int dx, u32 width,
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const u8 *data, u32 bgcolor, u32 fgcolor);
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#endif /* _VIDEO_ATAFB_H */
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@ -0,0 +1,293 @@
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/*
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* linux/drivers/video/iplan2p2.c -- Low level frame buffer operations for
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* interleaved bitplanes à la Atari (2
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* planes, 2 bytes interleave)
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*
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* Created 5 Apr 1997 by Geert Uytterhoeven
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*
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* This file is subject to the terms and conditions of the GNU General Public
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* License. See the file COPYING in the main directory of this archive for
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* more details.
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*/
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#include <linux/module.h>
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#include <linux/string.h>
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#include <linux/fb.h>
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#include <asm/setup.h>
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#include "atafb.h"
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#define BPL 2
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#include "atafb_utils.h"
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void atafb_iplan2p2_copyarea(struct fb_info *info, u_long next_line,
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int sy, int sx, int dy, int dx,
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int height, int width)
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{
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/* bmove() has to distinguish two major cases: If both, source and
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* destination, start at even addresses or both are at odd
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* addresses, just the first odd and last even column (if present)
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* require special treatment (memmove_col()). The rest between
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* then can be copied by normal operations, because all adjacent
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* bytes are affected and are to be stored in the same order.
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* The pathological case is when the move should go from an odd
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* address to an even or vice versa. Since the bytes in the plane
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* words must be assembled in new order, it seems wisest to make
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* all movements by memmove_col().
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*/
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u8 *src, *dst;
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u32 *s, *d;
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int w, l , i, j;
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u_int colsize;
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u_int upwards = (dy < sy) || (dy == sy && dx < sx);
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colsize = height;
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if (!((sx ^ dx) & 15)) {
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/* odd->odd or even->even */
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if (upwards) {
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src = (u8 *)info->screen_base + sy * next_line + (sx & ~15) / (8 / BPL);
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dst = (u8 *)info->screen_base + dy * next_line + (dx & ~15) / (8 / BPL);
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if (sx & 15) {
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memmove32_col(dst, src, 0xff00ff, height, next_line - BPL * 2);
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src += BPL * 2;
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dst += BPL * 2;
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width -= 8;
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}
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w = width >> 4;
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if (w) {
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s = (u32 *)src;
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d = (u32 *)dst;
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w *= BPL / 2;
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l = next_line - w * 4;
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for (j = height; j > 0; j--) {
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for (i = w; i > 0; i--)
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*d++ = *s++;
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s = (u32 *)((u8 *)s + l);
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d = (u32 *)((u8 *)d + l);
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}
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}
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if (width & 15)
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memmove32_col(dst + width / (8 / BPL), src + width / (8 / BPL),
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0xff00ff00, height, next_line - BPL * 2);
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} else {
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src = (u8 *)info->screen_base + (sy - 1) * next_line + ((sx + width + 8) & ~15) / (8 / BPL);
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dst = (u8 *)info->screen_base + (dy - 1) * next_line + ((dx + width + 8) & ~15) / (8 / BPL);
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if ((sx + width) & 15) {
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src -= BPL * 2;
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dst -= BPL * 2;
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memmove32_col(dst, src, 0xff00ff00, colsize, -next_line - BPL * 2);
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width -= 8;
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}
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w = width >> 4;
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if (w) {
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s = (u32 *)src;
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d = (u32 *)dst;
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w *= BPL / 2;
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l = next_line - w * 4;
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for (j = height; j > 0; j--) {
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for (i = w; i > 0; i--)
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*--d = *--s;
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s = (u32 *)((u8 *)s - l);
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d = (u32 *)((u8 *)d - l);
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}
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}
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if (sx & 15)
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memmove32_col(dst - (width - 16) / (8 / BPL),
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src - (width - 16) / (8 / BPL),
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0xff00ff, colsize, -next_line - BPL * 2);
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}
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} else {
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/* odd->even or even->odd */
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if (upwards) {
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u32 *src32, *dst32;
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u32 pval[4], v, v1, mask;
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int i, j, w, f;
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src = (u8 *)info->screen_base + sy * next_line + (sx & ~15) / (8 / BPL);
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dst = (u8 *)info->screen_base + dy * next_line + (dx & ~15) / (8 / BPL);
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mask = 0xff00ff00;
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f = 0;
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w = width;
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if (sx & 15) {
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f = 1;
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w += 8;
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}
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if ((sx + width) & 15)
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f |= 2;
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w >>= 4;
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for (i = height; i; i--) {
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src32 = (u32 *)src;
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dst32 = (u32 *)dst;
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if (f & 1) {
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pval[0] = (*src32++ << 8) & mask;
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} else {
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pval[0] = dst32[0] & mask;
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}
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for (j = w; j > 0; j--) {
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v = *src32++;
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v1 = v & mask;
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*dst32++ = pval[0] | (v1 >> 8);
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pval[0] = (v ^ v1) << 8;
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}
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if (f & 2) {
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dst32[0] = (dst32[0] & mask) | pval[0];
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}
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src += next_line;
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dst += next_line;
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}
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} else {
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u32 *src32, *dst32;
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u32 pval[4], v, v1, mask;
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int i, j, w, f;
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src = (u8 *)info->screen_base + (sy - 1) * next_line + ((sx + width + 8) & ~15) / (8 / BPL);
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dst = (u8 *)info->screen_base + (dy - 1) * next_line + ((dx + width + 8) & ~15) / (8 / BPL);
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mask = 0xff00ff;
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f = 0;
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w = width;
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if ((dx + width) & 15)
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f = 1;
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if (sx & 15) {
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f |= 2;
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w += 8;
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}
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w >>= 4;
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for (i = height; i; i--) {
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src32 = (u32 *)src;
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dst32 = (u32 *)dst;
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if (f & 1) {
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pval[0] = dst32[-1] & mask;
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} else {
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pval[0] = (*--src32 >> 8) & mask;
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}
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for (j = w; j > 0; j--) {
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v = *--src32;
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v1 = v & mask;
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*--dst32 = pval[0] | (v1 << 8);
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pval[0] = (v ^ v1) >> 8;
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}
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if (!(f & 2)) {
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dst32[-1] = (dst32[-1] & mask) | pval[0];
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}
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src -= next_line;
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dst -= next_line;
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}
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}
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}
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}
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void atafb_iplan2p2_fillrect(struct fb_info *info, u_long next_line, u32 color,
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int sy, int sx, int height, int width)
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{
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u32 *dest;
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int rows, i;
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u32 cval[4];
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dest = (u32 *)(info->screen_base + sy * next_line + (sx & ~15) / (8 / BPL));
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if (sx & 15) {
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u8 *dest8 = (u8 *)dest + 1;
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expand8_col2mask(color, cval);
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for (i = height; i; i--) {
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fill8_col(dest8, cval);
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dest8 += next_line;
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}
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dest += BPL / 2;
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width -= 8;
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}
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expand16_col2mask(color, cval);
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rows = width >> 4;
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if (rows) {
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u32 *d = dest;
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u32 off = next_line - rows * BPL * 2;
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for (i = height; i; i--) {
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d = fill16_col(d, rows, cval);
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d = (u32 *)((long)d + off);
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}
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dest += rows * BPL / 2;
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width &= 15;
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}
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if (width) {
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u8 *dest8 = (u8 *)dest;
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expand8_col2mask(color, cval);
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for (i = height; i; i--) {
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fill8_col(dest8, cval);
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dest8 += next_line;
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}
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}
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}
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void atafb_iplan2p2_linefill(struct fb_info *info, u_long next_line,
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int dy, int dx, u32 width,
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const u8 *data, u32 bgcolor, u32 fgcolor)
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{
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u32 *dest;
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const u16 *data16;
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int rows;
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u32 fgm[4], bgm[4], m;
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dest = (u32 *)(info->screen_base + dy * next_line + (dx & ~15) / (8 / BPL));
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if (dx & 15) {
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fill8_2col((u8 *)dest + 1, fgcolor, bgcolor, *data++);
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dest += BPL / 2;
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width -= 8;
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}
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if (width >= 16) {
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data16 = (const u16 *)data;
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expand16_2col2mask(fgcolor, bgcolor, fgm, bgm);
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for (rows = width / 16; rows; rows--) {
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u16 d = *data16++;
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m = d | ((u32)d << 16);
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*dest++ = (m & fgm[0]) ^ bgm[0];
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}
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data = (const u8 *)data16;
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width &= 15;
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}
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if (width)
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fill8_2col((u8 *)dest, fgcolor, bgcolor, *data);
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}
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#ifdef MODULE
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MODULE_LICENSE("GPL");
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int init_module(void)
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{
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return 0;
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}
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void cleanup_module(void)
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{
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}
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#endif /* MODULE */
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/*
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* Visible symbols for modules
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*/
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EXPORT_SYMBOL(atafb_iplan2p2_copyarea);
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EXPORT_SYMBOL(atafb_iplan2p2_fillrect);
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EXPORT_SYMBOL(atafb_iplan2p2_linefill);
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@ -0,0 +1,308 @@
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/*
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* linux/drivers/video/iplan2p4.c -- Low level frame buffer operations for
|
||||
* interleaved bitplanes à la Atari (4
|
||||
* planes, 2 bytes interleave)
|
||||
*
|
||||
* Created 5 Apr 1997 by Geert Uytterhoeven
|
||||
*
|
||||
* This file is subject to the terms and conditions of the GNU General Public
|
||||
* License. See the file COPYING in the main directory of this archive for
|
||||
* more details.
|
||||
*/
|
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|
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#include <linux/module.h>
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#include <linux/string.h>
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#include <linux/fb.h>
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#include <asm/setup.h>
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#include "atafb.h"
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#define BPL 4
|
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#include "atafb_utils.h"
|
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|
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void atafb_iplan2p4_copyarea(struct fb_info *info, u_long next_line,
|
||||
int sy, int sx, int dy, int dx,
|
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int height, int width)
|
||||
{
|
||||
/* bmove() has to distinguish two major cases: If both, source and
|
||||
* destination, start at even addresses or both are at odd
|
||||
* addresses, just the first odd and last even column (if present)
|
||||
* require special treatment (memmove_col()). The rest between
|
||||
* then can be copied by normal operations, because all adjacent
|
||||
* bytes are affected and are to be stored in the same order.
|
||||
* The pathological case is when the move should go from an odd
|
||||
* address to an even or vice versa. Since the bytes in the plane
|
||||
* words must be assembled in new order, it seems wisest to make
|
||||
* all movements by memmove_col().
|
||||
*/
|
||||
|
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u8 *src, *dst;
|
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u32 *s, *d;
|
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int w, l , i, j;
|
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u_int colsize;
|
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u_int upwards = (dy < sy) || (dy == sy && dx < sx);
|
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colsize = height;
|
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if (!((sx ^ dx) & 15)) {
|
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/* odd->odd or even->even */
|
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|
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if (upwards) {
|
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src = (u8 *)info->screen_base + sy * next_line + (sx & ~15) / (8 / BPL);
|
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dst = (u8 *)info->screen_base + dy * next_line + (dx & ~15) / (8 / BPL);
|
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if (sx & 15) {
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memmove32_col(dst, src, 0xff00ff, height, next_line - BPL * 2);
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src += BPL * 2;
|
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dst += BPL * 2;
|
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width -= 8;
|
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}
|
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w = width >> 4;
|
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if (w) {
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s = (u32 *)src;
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d = (u32 *)dst;
|
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w *= BPL / 2;
|
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l = next_line - w * 4;
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for (j = height; j > 0; j--) {
|
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for (i = w; i > 0; i--)
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*d++ = *s++;
|
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s = (u32 *)((u8 *)s + l);
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d = (u32 *)((u8 *)d + l);
|
||||
}
|
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}
|
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if (width & 15)
|
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memmove32_col(dst + width / (8 / BPL), src + width / (8 / BPL),
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0xff00ff00, height, next_line - BPL * 2);
|
||||
} else {
|
||||
src = (u8 *)info->screen_base + (sy - 1) * next_line + ((sx + width + 8) & ~15) / (8 / BPL);
|
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dst = (u8 *)info->screen_base + (dy - 1) * next_line + ((dx + width + 8) & ~15) / (8 / BPL);
|
||||
|
||||
if ((sx + width) & 15) {
|
||||
src -= BPL * 2;
|
||||
dst -= BPL * 2;
|
||||
memmove32_col(dst, src, 0xff00ff00, colsize, -next_line - BPL * 2);
|
||||
width -= 8;
|
||||
}
|
||||
w = width >> 4;
|
||||
if (w) {
|
||||
s = (u32 *)src;
|
||||
d = (u32 *)dst;
|
||||
w *= BPL / 2;
|
||||
l = next_line - w * 4;
|
||||
for (j = height; j > 0; j--) {
|
||||
for (i = w; i > 0; i--)
|
||||
*--d = *--s;
|
||||
s = (u32 *)((u8 *)s - l);
|
||||
d = (u32 *)((u8 *)d - l);
|
||||
}
|
||||
}
|
||||
if (sx & 15)
|
||||
memmove32_col(dst - (width - 16) / (8 / BPL),
|
||||
src - (width - 16) / (8 / BPL),
|
||||
0xff00ff, colsize, -next_line - BPL * 2);
|
||||
}
|
||||
} else {
|
||||
/* odd->even or even->odd */
|
||||
if (upwards) {
|
||||
u32 *src32, *dst32;
|
||||
u32 pval[4], v, v1, mask;
|
||||
int i, j, w, f;
|
||||
|
||||
src = (u8 *)info->screen_base + sy * next_line + (sx & ~15) / (8 / BPL);
|
||||
dst = (u8 *)info->screen_base + dy * next_line + (dx & ~15) / (8 / BPL);
|
||||
|
||||
mask = 0xff00ff00;
|
||||
f = 0;
|
||||
w = width;
|
||||
if (sx & 15) {
|
||||
f = 1;
|
||||
w += 8;
|
||||
}
|
||||
if ((sx + width) & 15)
|
||||
f |= 2;
|
||||
w >>= 4;
|
||||
for (i = height; i; i--) {
|
||||
src32 = (u32 *)src;
|
||||
dst32 = (u32 *)dst;
|
||||
|
||||
if (f & 1) {
|
||||
pval[0] = (*src32++ << 8) & mask;
|
||||
pval[1] = (*src32++ << 8) & mask;
|
||||
} else {
|
||||
pval[0] = dst32[0] & mask;
|
||||
pval[1] = dst32[1] & mask;
|
||||
}
|
||||
|
||||
for (j = w; j > 0; j--) {
|
||||
v = *src32++;
|
||||
v1 = v & mask;
|
||||
*dst32++ = pval[0] | (v1 >> 8);
|
||||
pval[0] = (v ^ v1) << 8;
|
||||
v = *src32++;
|
||||
v1 = v & mask;
|
||||
*dst32++ = pval[1] | (v1 >> 8);
|
||||
pval[1] = (v ^ v1) << 8;
|
||||
}
|
||||
|
||||
if (f & 2) {
|
||||
dst32[0] = (dst32[0] & mask) | pval[0];
|
||||
dst32[1] = (dst32[1] & mask) | pval[1];
|
||||
}
|
||||
|
||||
src += next_line;
|
||||
dst += next_line;
|
||||
}
|
||||
} else {
|
||||
u32 *src32, *dst32;
|
||||
u32 pval[4], v, v1, mask;
|
||||
int i, j, w, f;
|
||||
|
||||
src = (u8 *)info->screen_base + (sy - 1) * next_line + ((sx + width + 8) & ~15) / (8 / BPL);
|
||||
dst = (u8 *)info->screen_base + (dy - 1) * next_line + ((dx + width + 8) & ~15) / (8 / BPL);
|
||||
|
||||
mask = 0xff00ff;
|
||||
f = 0;
|
||||
w = width;
|
||||
if ((dx + width) & 15)
|
||||
f = 1;
|
||||
if (sx & 15) {
|
||||
f |= 2;
|
||||
w += 8;
|
||||
}
|
||||
w >>= 4;
|
||||
for (i = height; i; i--) {
|
||||
src32 = (u32 *)src;
|
||||
dst32 = (u32 *)dst;
|
||||
|
||||
if (f & 1) {
|
||||
pval[0] = dst32[-1] & mask;
|
||||
pval[1] = dst32[-2] & mask;
|
||||
} else {
|
||||
pval[0] = (*--src32 >> 8) & mask;
|
||||
pval[1] = (*--src32 >> 8) & mask;
|
||||
}
|
||||
|
||||
for (j = w; j > 0; j--) {
|
||||
v = *--src32;
|
||||
v1 = v & mask;
|
||||
*--dst32 = pval[0] | (v1 << 8);
|
||||
pval[0] = (v ^ v1) >> 8;
|
||||
v = *--src32;
|
||||
v1 = v & mask;
|
||||
*--dst32 = pval[1] | (v1 << 8);
|
||||
pval[1] = (v ^ v1) >> 8;
|
||||
}
|
||||
|
||||
if (!(f & 2)) {
|
||||
dst32[-1] = (dst32[-1] & mask) | pval[0];
|
||||
dst32[-2] = (dst32[-2] & mask) | pval[1];
|
||||
}
|
||||
|
||||
src -= next_line;
|
||||
dst -= next_line;
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
void atafb_iplan2p4_fillrect(struct fb_info *info, u_long next_line, u32 color,
|
||||
int sy, int sx, int height, int width)
|
||||
{
|
||||
u32 *dest;
|
||||
int rows, i;
|
||||
u32 cval[4];
|
||||
|
||||
dest = (u32 *)(info->screen_base + sy * next_line + (sx & ~15) / (8 / BPL));
|
||||
if (sx & 15) {
|
||||
u8 *dest8 = (u8 *)dest + 1;
|
||||
|
||||
expand8_col2mask(color, cval);
|
||||
|
||||
for (i = height; i; i--) {
|
||||
fill8_col(dest8, cval);
|
||||
dest8 += next_line;
|
||||
}
|
||||
dest += BPL / 2;
|
||||
width -= 8;
|
||||
}
|
||||
|
||||
expand16_col2mask(color, cval);
|
||||
rows = width >> 4;
|
||||
if (rows) {
|
||||
u32 *d = dest;
|
||||
u32 off = next_line - rows * BPL * 2;
|
||||
for (i = height; i; i--) {
|
||||
d = fill16_col(d, rows, cval);
|
||||
d = (u32 *)((long)d + off);
|
||||
}
|
||||
dest += rows * BPL / 2;
|
||||
width &= 15;
|
||||
}
|
||||
|
||||
if (width) {
|
||||
u8 *dest8 = (u8 *)dest;
|
||||
|
||||
expand8_col2mask(color, cval);
|
||||
|
||||
for (i = height; i; i--) {
|
||||
fill8_col(dest8, cval);
|
||||
dest8 += next_line;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
void atafb_iplan2p4_linefill(struct fb_info *info, u_long next_line,
|
||||
int dy, int dx, u32 width,
|
||||
const u8 *data, u32 bgcolor, u32 fgcolor)
|
||||
{
|
||||
u32 *dest;
|
||||
const u16 *data16;
|
||||
int rows;
|
||||
u32 fgm[4], bgm[4], m;
|
||||
|
||||
dest = (u32 *)(info->screen_base + dy * next_line + (dx & ~15) / (8 / BPL));
|
||||
if (dx & 15) {
|
||||
fill8_2col((u8 *)dest + 1, fgcolor, bgcolor, *data++);
|
||||
dest += BPL / 2;
|
||||
width -= 8;
|
||||
}
|
||||
|
||||
if (width >= 16) {
|
||||
data16 = (const u16 *)data;
|
||||
expand16_2col2mask(fgcolor, bgcolor, fgm, bgm);
|
||||
|
||||
for (rows = width / 16; rows; rows--) {
|
||||
u16 d = *data16++;
|
||||
m = d | ((u32)d << 16);
|
||||
*dest++ = (m & fgm[0]) ^ bgm[0];
|
||||
*dest++ = (m & fgm[1]) ^ bgm[1];
|
||||
}
|
||||
|
||||
data = (const u8 *)data16;
|
||||
width &= 15;
|
||||
}
|
||||
|
||||
if (width)
|
||||
fill8_2col((u8 *)dest, fgcolor, bgcolor, *data);
|
||||
}
|
||||
|
||||
#ifdef MODULE
|
||||
MODULE_LICENSE("GPL");
|
||||
|
||||
int init_module(void)
|
||||
{
|
||||
return 0;
|
||||
}
|
||||
|
||||
void cleanup_module(void)
|
||||
{
|
||||
}
|
||||
#endif /* MODULE */
|
||||
|
||||
|
||||
/*
|
||||
* Visible symbols for modules
|
||||
*/
|
||||
|
||||
EXPORT_SYMBOL(atafb_iplan2p4_copyarea);
|
||||
EXPORT_SYMBOL(atafb_iplan2p4_fillrect);
|
||||
EXPORT_SYMBOL(atafb_iplan2p4_linefill);
|
||||
|
|
@ -0,0 +1,345 @@
|
|||
/*
|
||||
* linux/drivers/video/iplan2p8.c -- Low level frame buffer operations for
|
||||
* interleaved bitplanes à la Atari (8
|
||||
* planes, 2 bytes interleave)
|
||||
*
|
||||
* Created 5 Apr 1997 by Geert Uytterhoeven
|
||||
*
|
||||
* This file is subject to the terms and conditions of the GNU General Public
|
||||
* License. See the file COPYING in the main directory of this archive for
|
||||
* more details.
|
||||
*/
|
||||
|
||||
#include <linux/module.h>
|
||||
#include <linux/string.h>
|
||||
#include <linux/fb.h>
|
||||
|
||||
#include <asm/setup.h>
|
||||
|
||||
#include "atafb.h"
|
||||
|
||||
#define BPL 8
|
||||
#include "atafb_utils.h"
|
||||
|
||||
|
||||
/* Copies a 8 plane column from 's', height 'h', to 'd'. */
|
||||
|
||||
/* This expands a 8 bit color into two longs for two movepl (8 plane)
|
||||
* operations.
|
||||
*/
|
||||
|
||||
void atafb_iplan2p8_copyarea(struct fb_info *info, u_long next_line,
|
||||
int sy, int sx, int dy, int dx,
|
||||
int height, int width)
|
||||
{
|
||||
/* bmove() has to distinguish two major cases: If both, source and
|
||||
* destination, start at even addresses or both are at odd
|
||||
* addresses, just the first odd and last even column (if present)
|
||||
* require special treatment (memmove_col()). The rest between
|
||||
* then can be copied by normal operations, because all adjacent
|
||||
* bytes are affected and are to be stored in the same order.
|
||||
* The pathological case is when the move should go from an odd
|
||||
* address to an even or vice versa. Since the bytes in the plane
|
||||
* words must be assembled in new order, it seems wisest to make
|
||||
* all movements by memmove_col().
|
||||
*/
|
||||
|
||||
u8 *src, *dst;
|
||||
u32 *s, *d;
|
||||
int w, l , i, j;
|
||||
u_int colsize;
|
||||
u_int upwards = (dy < sy) || (dy == sy && dx < sx);
|
||||
|
||||
colsize = height;
|
||||
if (!((sx ^ dx) & 15)) {
|
||||
/* odd->odd or even->even */
|
||||
|
||||
if (upwards) {
|
||||
src = (u8 *)info->screen_base + sy * next_line + (sx & ~15) / (8 / BPL);
|
||||
dst = (u8 *)info->screen_base + dy * next_line + (dx & ~15) / (8 / BPL);
|
||||
if (sx & 15) {
|
||||
memmove32_col(dst, src, 0xff00ff, height, next_line - BPL * 2);
|
||||
src += BPL * 2;
|
||||
dst += BPL * 2;
|
||||
width -= 8;
|
||||
}
|
||||
w = width >> 4;
|
||||
if (w) {
|
||||
s = (u32 *)src;
|
||||
d = (u32 *)dst;
|
||||
w *= BPL / 2;
|
||||
l = next_line - w * 4;
|
||||
for (j = height; j > 0; j--) {
|
||||
for (i = w; i > 0; i--)
|
||||
*d++ = *s++;
|
||||
s = (u32 *)((u8 *)s + l);
|
||||
d = (u32 *)((u8 *)d + l);
|
||||
}
|
||||
}
|
||||
if (width & 15)
|
||||
memmove32_col(dst + width / (8 / BPL), src + width / (8 / BPL),
|
||||
0xff00ff00, height, next_line - BPL * 2);
|
||||
} else {
|
||||
src = (u8 *)info->screen_base + (sy - 1) * next_line + ((sx + width + 8) & ~15) / (8 / BPL);
|
||||
dst = (u8 *)info->screen_base + (dy - 1) * next_line + ((dx + width + 8) & ~15) / (8 / BPL);
|
||||
|
||||
if ((sx + width) & 15) {
|
||||
src -= BPL * 2;
|
||||
dst -= BPL * 2;
|
||||
memmove32_col(dst, src, 0xff00ff00, colsize, -next_line - BPL * 2);
|
||||
width -= 8;
|
||||
}
|
||||
w = width >> 4;
|
||||
if (w) {
|
||||
s = (u32 *)src;
|
||||
d = (u32 *)dst;
|
||||
w *= BPL / 2;
|
||||
l = next_line - w * 4;
|
||||
for (j = height; j > 0; j--) {
|
||||
for (i = w; i > 0; i--)
|
||||
*--d = *--s;
|
||||
s = (u32 *)((u8 *)s - l);
|
||||
d = (u32 *)((u8 *)d - l);
|
||||
}
|
||||
}
|
||||
if (sx & 15)
|
||||
memmove32_col(dst - (width - 16) / (8 / BPL),
|
||||
src - (width - 16) / (8 / BPL),
|
||||
0xff00ff, colsize, -next_line - BPL * 2);
|
||||
}
|
||||
} else {
|
||||
/* odd->even or even->odd */
|
||||
if (upwards) {
|
||||
u32 *src32, *dst32;
|
||||
u32 pval[4], v, v1, mask;
|
||||
int i, j, w, f;
|
||||
|
||||
src = (u8 *)info->screen_base + sy * next_line + (sx & ~15) / (8 / BPL);
|
||||
dst = (u8 *)info->screen_base + dy * next_line + (dx & ~15) / (8 / BPL);
|
||||
|
||||
mask = 0xff00ff00;
|
||||
f = 0;
|
||||
w = width;
|
||||
if (sx & 15) {
|
||||
f = 1;
|
||||
w += 8;
|
||||
}
|
||||
if ((sx + width) & 15)
|
||||
f |= 2;
|
||||
w >>= 4;
|
||||
for (i = height; i; i--) {
|
||||
src32 = (u32 *)src;
|
||||
dst32 = (u32 *)dst;
|
||||
|
||||
if (f & 1) {
|
||||
pval[0] = (*src32++ << 8) & mask;
|
||||
pval[1] = (*src32++ << 8) & mask;
|
||||
pval[2] = (*src32++ << 8) & mask;
|
||||
pval[3] = (*src32++ << 8) & mask;
|
||||
} else {
|
||||
pval[0] = dst32[0] & mask;
|
||||
pval[1] = dst32[1] & mask;
|
||||
pval[2] = dst32[2] & mask;
|
||||
pval[3] = dst32[3] & mask;
|
||||
}
|
||||
|
||||
for (j = w; j > 0; j--) {
|
||||
v = *src32++;
|
||||
v1 = v & mask;
|
||||
*dst32++ = pval[0] | (v1 >> 8);
|
||||
pval[0] = (v ^ v1) << 8;
|
||||
v = *src32++;
|
||||
v1 = v & mask;
|
||||
*dst32++ = pval[1] | (v1 >> 8);
|
||||
pval[1] = (v ^ v1) << 8;
|
||||
v = *src32++;
|
||||
v1 = v & mask;
|
||||
*dst32++ = pval[2] | (v1 >> 8);
|
||||
pval[2] = (v ^ v1) << 8;
|
||||
v = *src32++;
|
||||
v1 = v & mask;
|
||||
*dst32++ = pval[3] | (v1 >> 8);
|
||||
pval[3] = (v ^ v1) << 8;
|
||||
}
|
||||
|
||||
if (f & 2) {
|
||||
dst32[0] = (dst32[0] & mask) | pval[0];
|
||||
dst32[1] = (dst32[1] & mask) | pval[1];
|
||||
dst32[2] = (dst32[2] & mask) | pval[2];
|
||||
dst32[3] = (dst32[3] & mask) | pval[3];
|
||||
}
|
||||
|
||||
src += next_line;
|
||||
dst += next_line;
|
||||
}
|
||||
} else {
|
||||
u32 *src32, *dst32;
|
||||
u32 pval[4], v, v1, mask;
|
||||
int i, j, w, f;
|
||||
|
||||
src = (u8 *)info->screen_base + (sy - 1) * next_line + ((sx + width + 8) & ~15) / (8 / BPL);
|
||||
dst = (u8 *)info->screen_base + (dy - 1) * next_line + ((dx + width + 8) & ~15) / (8 / BPL);
|
||||
|
||||
mask = 0xff00ff;
|
||||
f = 0;
|
||||
w = width;
|
||||
if ((dx + width) & 15)
|
||||
f = 1;
|
||||
if (sx & 15) {
|
||||
f |= 2;
|
||||
w += 8;
|
||||
}
|
||||
w >>= 4;
|
||||
for (i = height; i; i--) {
|
||||
src32 = (u32 *)src;
|
||||
dst32 = (u32 *)dst;
|
||||
|
||||
if (f & 1) {
|
||||
pval[0] = dst32[-1] & mask;
|
||||
pval[1] = dst32[-2] & mask;
|
||||
pval[2] = dst32[-3] & mask;
|
||||
pval[3] = dst32[-4] & mask;
|
||||
} else {
|
||||
pval[0] = (*--src32 >> 8) & mask;
|
||||
pval[1] = (*--src32 >> 8) & mask;
|
||||
pval[2] = (*--src32 >> 8) & mask;
|
||||
pval[3] = (*--src32 >> 8) & mask;
|
||||
}
|
||||
|
||||
for (j = w; j > 0; j--) {
|
||||
v = *--src32;
|
||||
v1 = v & mask;
|
||||
*--dst32 = pval[0] | (v1 << 8);
|
||||
pval[0] = (v ^ v1) >> 8;
|
||||
v = *--src32;
|
||||
v1 = v & mask;
|
||||
*--dst32 = pval[1] | (v1 << 8);
|
||||
pval[1] = (v ^ v1) >> 8;
|
||||
v = *--src32;
|
||||
v1 = v & mask;
|
||||
*--dst32 = pval[2] | (v1 << 8);
|
||||
pval[2] = (v ^ v1) >> 8;
|
||||
v = *--src32;
|
||||
v1 = v & mask;
|
||||
*--dst32 = pval[3] | (v1 << 8);
|
||||
pval[3] = (v ^ v1) >> 8;
|
||||
}
|
||||
|
||||
if (!(f & 2)) {
|
||||
dst32[-1] = (dst32[-1] & mask) | pval[0];
|
||||
dst32[-2] = (dst32[-2] & mask) | pval[1];
|
||||
dst32[-3] = (dst32[-3] & mask) | pval[2];
|
||||
dst32[-4] = (dst32[-4] & mask) | pval[3];
|
||||
}
|
||||
|
||||
src -= next_line;
|
||||
dst -= next_line;
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
void atafb_iplan2p8_fillrect(struct fb_info *info, u_long next_line, u32 color,
|
||||
int sy, int sx, int height, int width)
|
||||
{
|
||||
u32 *dest;
|
||||
int rows, i;
|
||||
u32 cval[4];
|
||||
|
||||
dest = (u32 *)(info->screen_base + sy * next_line + (sx & ~15) / (8 / BPL));
|
||||
if (sx & 15) {
|
||||
u8 *dest8 = (u8 *)dest + 1;
|
||||
|
||||
expand8_col2mask(color, cval);
|
||||
|
||||
for (i = height; i; i--) {
|
||||
fill8_col(dest8, cval);
|
||||
dest8 += next_line;
|
||||
}
|
||||
dest += BPL / 2;
|
||||
width -= 8;
|
||||
}
|
||||
|
||||
expand16_col2mask(color, cval);
|
||||
rows = width >> 4;
|
||||
if (rows) {
|
||||
u32 *d = dest;
|
||||
u32 off = next_line - rows * BPL * 2;
|
||||
for (i = height; i; i--) {
|
||||
d = fill16_col(d, rows, cval);
|
||||
d = (u32 *)((long)d + off);
|
||||
}
|
||||
dest += rows * BPL / 2;
|
||||
width &= 15;
|
||||
}
|
||||
|
||||
if (width) {
|
||||
u8 *dest8 = (u8 *)dest;
|
||||
|
||||
expand8_col2mask(color, cval);
|
||||
|
||||
for (i = height; i; i--) {
|
||||
fill8_col(dest8, cval);
|
||||
dest8 += next_line;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
void atafb_iplan2p8_linefill(struct fb_info *info, u_long next_line,
|
||||
int dy, int dx, u32 width,
|
||||
const u8 *data, u32 bgcolor, u32 fgcolor)
|
||||
{
|
||||
u32 *dest;
|
||||
const u16 *data16;
|
||||
int rows;
|
||||
u32 fgm[4], bgm[4], m;
|
||||
|
||||
dest = (u32 *)(info->screen_base + dy * next_line + (dx & ~15) / (8 / BPL));
|
||||
if (dx & 15) {
|
||||
fill8_2col((u8 *)dest + 1, fgcolor, bgcolor, *data++);
|
||||
dest += BPL / 2;
|
||||
width -= 8;
|
||||
}
|
||||
|
||||
if (width >= 16) {
|
||||
data16 = (const u16 *)data;
|
||||
expand16_2col2mask(fgcolor, bgcolor, fgm, bgm);
|
||||
|
||||
for (rows = width / 16; rows; rows--) {
|
||||
u16 d = *data16++;
|
||||
m = d | ((u32)d << 16);
|
||||
*dest++ = (m & fgm[0]) ^ bgm[0];
|
||||
*dest++ = (m & fgm[1]) ^ bgm[1];
|
||||
*dest++ = (m & fgm[2]) ^ bgm[2];
|
||||
*dest++ = (m & fgm[3]) ^ bgm[3];
|
||||
}
|
||||
|
||||
data = (const u8 *)data16;
|
||||
width &= 15;
|
||||
}
|
||||
|
||||
if (width)
|
||||
fill8_2col((u8 *)dest, fgcolor, bgcolor, *data);
|
||||
}
|
||||
|
||||
#ifdef MODULE
|
||||
MODULE_LICENSE("GPL");
|
||||
|
||||
int init_module(void)
|
||||
{
|
||||
return 0;
|
||||
}
|
||||
|
||||
void cleanup_module(void)
|
||||
{
|
||||
}
|
||||
#endif /* MODULE */
|
||||
|
||||
|
||||
/*
|
||||
* Visible symbols for modules
|
||||
*/
|
||||
|
||||
EXPORT_SYMBOL(atafb_iplan2p8_copyarea);
|
||||
EXPORT_SYMBOL(atafb_iplan2p8_fillrect);
|
||||
EXPORT_SYMBOL(atafb_iplan2p8_linefill);
|
||||
|
|
@ -0,0 +1,112 @@
|
|||
/*
|
||||
* linux/drivers/video/mfb.c -- Low level frame buffer operations for
|
||||
* monochrome
|
||||
*
|
||||
* Created 5 Apr 1997 by Geert Uytterhoeven
|
||||
*
|
||||
* This file is subject to the terms and conditions of the GNU General Public
|
||||
* License. See the file COPYING in the main directory of this archive for
|
||||
* more details.
|
||||
*/
|
||||
|
||||
#include <linux/module.h>
|
||||
#include <linux/string.h>
|
||||
#include <linux/fb.h>
|
||||
|
||||
#include "atafb.h"
|
||||
#include "atafb_utils.h"
|
||||
|
||||
|
||||
/*
|
||||
* Monochrome
|
||||
*/
|
||||
|
||||
void atafb_mfb_copyarea(struct fb_info *info, u_long next_line,
|
||||
int sy, int sx, int dy, int dx,
|
||||
int height, int width)
|
||||
{
|
||||
u8 *src, *dest;
|
||||
u_int rows;
|
||||
|
||||
if (sx == 0 && dx == 0 && width == next_line) {
|
||||
src = (u8 *)info->screen_base + sy * (width >> 3);
|
||||
dest = (u8 *)info->screen_base + dy * (width >> 3);
|
||||
fb_memmove(dest, src, height * (width >> 3));
|
||||
} else if (dy <= sy) {
|
||||
src = (u8 *)info->screen_base + sy * next_line + (sx >> 3);
|
||||
dest = (u8 *)info->screen_base + dy * next_line + (dx >> 3);
|
||||
for (rows = height; rows--;) {
|
||||
fb_memmove(dest, src, width >> 3);
|
||||
src += next_line;
|
||||
dest += next_line;
|
||||
}
|
||||
} else {
|
||||
src = (u8 *)info->screen_base + (sy + height - 1) * next_line + (sx >> 3);
|
||||
dest = (u8 *)info->screen_base + (dy + height - 1) * next_line + (dx >> 3);
|
||||
for (rows = height; rows--;) {
|
||||
fb_memmove(dest, src, width >> 3);
|
||||
src -= next_line;
|
||||
dest -= next_line;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
void atafb_mfb_fillrect(struct fb_info *info, u_long next_line, u32 color,
|
||||
int sy, int sx, int height, int width)
|
||||
{
|
||||
u8 *dest;
|
||||
u_int rows;
|
||||
|
||||
dest = (u8 *)info->screen_base + sy * next_line + (sx >> 3);
|
||||
|
||||
if (sx == 0 && width == next_line) {
|
||||
if (color)
|
||||
fb_memset255(dest, height * (width >> 3));
|
||||
else
|
||||
fb_memclear(dest, height * (width >> 3));
|
||||
} else {
|
||||
for (rows = height; rows--; dest += next_line) {
|
||||
if (color)
|
||||
fb_memset255(dest, width >> 3);
|
||||
else
|
||||
fb_memclear_small(dest, width >> 3);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
void atafb_mfb_linefill(struct fb_info *info, u_long next_line,
|
||||
int dy, int dx, u32 width,
|
||||
const u8 *data, u32 bgcolor, u32 fgcolor)
|
||||
{
|
||||
u8 *dest;
|
||||
u_int rows;
|
||||
|
||||
dest = (u8 *)info->screen_base + dy * next_line + (dx >> 3);
|
||||
|
||||
for (rows = width / 8; rows--; /* check margins */ ) {
|
||||
// use fast_memmove or fb_memmove
|
||||
*dest++ = *data++;
|
||||
}
|
||||
}
|
||||
|
||||
#ifdef MODULE
|
||||
MODULE_LICENSE("GPL");
|
||||
|
||||
int init_module(void)
|
||||
{
|
||||
return 0;
|
||||
}
|
||||
|
||||
void cleanup_module(void)
|
||||
{
|
||||
}
|
||||
#endif /* MODULE */
|
||||
|
||||
|
||||
/*
|
||||
* Visible symbols for modules
|
||||
*/
|
||||
|
||||
EXPORT_SYMBOL(atafb_mfb_copyarea);
|
||||
EXPORT_SYMBOL(atafb_mfb_fillrect);
|
||||
EXPORT_SYMBOL(atafb_mfb_linefill);
|
||||
|
|
@ -0,0 +1,400 @@
|
|||
#ifndef _VIDEO_ATAFB_UTILS_H
|
||||
#define _VIDEO_ATAFB_UTILS_H
|
||||
|
||||
/* ================================================================= */
|
||||
/* Utility Assembler Functions */
|
||||
/* ================================================================= */
|
||||
|
||||
/* ====================================================================== */
|
||||
|
||||
/* Those of a delicate disposition might like to skip the next couple of
|
||||
* pages.
|
||||
*
|
||||
* These functions are drop in replacements for memmove and
|
||||
* memset(_, 0, _). However their five instances add at least a kilobyte
|
||||
* to the object file. You have been warned.
|
||||
*
|
||||
* Not a great fan of assembler for the sake of it, but I think
|
||||
* that these routines are at least 10 times faster than their C
|
||||
* equivalents for large blits, and that's important to the lowest level of
|
||||
* a graphics driver. Question is whether some scheme with the blitter
|
||||
* would be faster. I suspect not for simple text system - not much
|
||||
* asynchrony.
|
||||
*
|
||||
* Code is very simple, just gruesome expansion. Basic strategy is to
|
||||
* increase data moved/cleared at each step to 16 bytes to reduce
|
||||
* instruction per data move overhead. movem might be faster still
|
||||
* For more than 15 bytes, we try to align the write direction on a
|
||||
* longword boundary to get maximum speed. This is even more gruesome.
|
||||
* Unaligned read/write used requires 68020+ - think this is a problem?
|
||||
*
|
||||
* Sorry!
|
||||
*/
|
||||
|
||||
|
||||
/* ++roman: I've optimized Robert's original versions in some minor
|
||||
* aspects, e.g. moveq instead of movel, let gcc choose the registers,
|
||||
* use movem in some places...
|
||||
* For other modes than 1 plane, lots of more such assembler functions
|
||||
* were needed (e.g. the ones using movep or expanding color values).
|
||||
*/
|
||||
|
||||
/* ++andreas: more optimizations:
|
||||
subl #65536,d0 replaced by clrw d0; subql #1,d0 for dbcc
|
||||
addal is faster than addaw
|
||||
movep is rather expensive compared to ordinary move's
|
||||
some functions rewritten in C for clarity, no speed loss */
|
||||
|
||||
static inline void *fb_memclear_small(void *s, size_t count)
|
||||
{
|
||||
if (!count)
|
||||
return 0;
|
||||
|
||||
asm volatile ("\n"
|
||||
" lsr.l #1,%1 ; jcc 1f ; move.b %2,-(%0)\n"
|
||||
"1: lsr.l #1,%1 ; jcc 1f ; move.w %2,-(%0)\n"
|
||||
"1: lsr.l #1,%1 ; jcc 1f ; move.l %2,-(%0)\n"
|
||||
"1: lsr.l #1,%1 ; jcc 1f ; move.l %2,-(%0) ; move.l %2,-(%0)\n"
|
||||
"1:"
|
||||
: "=a" (s), "=d" (count)
|
||||
: "d" (0), "0" ((char *)s + count), "1" (count));
|
||||
asm volatile ("\n"
|
||||
" subq.l #1,%1\n"
|
||||
" jcs 3f\n"
|
||||
" move.l %2,%%d4; move.l %2,%%d5; move.l %2,%%d6\n"
|
||||
"2: movem.l %2/%%d4/%%d5/%%d6,-(%0)\n"
|
||||
" dbra %1,2b\n"
|
||||
"3:"
|
||||
: "=a" (s), "=d" (count)
|
||||
: "d" (0), "0" (s), "1" (count)
|
||||
: "d4", "d5", "d6"
|
||||
);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
|
||||
static inline void *fb_memclear(void *s, size_t count)
|
||||
{
|
||||
if (!count)
|
||||
return 0;
|
||||
|
||||
if (count < 16) {
|
||||
asm volatile ("\n"
|
||||
" lsr.l #1,%1 ; jcc 1f ; clr.b (%0)+\n"
|
||||
"1: lsr.l #1,%1 ; jcc 1f ; clr.w (%0)+\n"
|
||||
"1: lsr.l #1,%1 ; jcc 1f ; clr.l (%0)+\n"
|
||||
"1: lsr.l #1,%1 ; jcc 1f ; clr.l (%0)+ ; clr.l (%0)+\n"
|
||||
"1:"
|
||||
: "=a" (s), "=d" (count)
|
||||
: "0" (s), "1" (count));
|
||||
} else {
|
||||
long tmp;
|
||||
asm volatile ("\n"
|
||||
" move.l %1,%2\n"
|
||||
" lsr.l #1,%2 ; jcc 1f ; clr.b (%0)+ ; subq.w #1,%1\n"
|
||||
" lsr.l #1,%2 ; jcs 2f\n" /* %0 increased=>bit 2 switched*/
|
||||
" clr.w (%0)+ ; subq.w #2,%1 ; jra 2f\n"
|
||||
"1: lsr.l #1,%2 ; jcc 2f\n"
|
||||
" clr.w (%0)+ ; subq.w #2,%1\n"
|
||||
"2: move.w %1,%2; lsr.l #2,%1 ; jeq 6f\n"
|
||||
" lsr.l #1,%1 ; jcc 3f ; clr.l (%0)+\n"
|
||||
"3: lsr.l #1,%1 ; jcc 4f ; clr.l (%0)+ ; clr.l (%0)+\n"
|
||||
"4: subq.l #1,%1 ; jcs 6f\n"
|
||||
"5: clr.l (%0)+; clr.l (%0)+ ; clr.l (%0)+ ; clr.l (%0)+\n"
|
||||
" dbra %1,5b ; clr.w %1; subq.l #1,%1; jcc 5b\n"
|
||||
"6: move.w %2,%1; btst #1,%1 ; jeq 7f ; clr.w (%0)+\n"
|
||||
"7: btst #0,%1 ; jeq 8f ; clr.b (%0)+\n"
|
||||
"8:"
|
||||
: "=a" (s), "=d" (count), "=d" (tmp)
|
||||
: "0" (s), "1" (count));
|
||||
}
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
|
||||
static inline void *fb_memset255(void *s, size_t count)
|
||||
{
|
||||
if (!count)
|
||||
return 0;
|
||||
|
||||
asm volatile ("\n"
|
||||
" lsr.l #1,%1 ; jcc 1f ; move.b %2,-(%0)\n"
|
||||
"1: lsr.l #1,%1 ; jcc 1f ; move.w %2,-(%0)\n"
|
||||
"1: lsr.l #1,%1 ; jcc 1f ; move.l %2,-(%0)\n"
|
||||
"1: lsr.l #1,%1 ; jcc 1f ; move.l %2,-(%0) ; move.l %2,-(%0)\n"
|
||||
"1:"
|
||||
: "=a" (s), "=d" (count)
|
||||
: "d" (-1), "0" ((char *)s+count), "1" (count));
|
||||
asm volatile ("\n"
|
||||
" subq.l #1,%1 ; jcs 3f\n"
|
||||
" move.l %2,%%d4; move.l %2,%%d5; move.l %2,%%d6\n"
|
||||
"2: movem.l %2/%%d4/%%d5/%%d6,-(%0)\n"
|
||||
" dbra %1,2b\n"
|
||||
"3:"
|
||||
: "=a" (s), "=d" (count)
|
||||
: "d" (-1), "0" (s), "1" (count)
|
||||
: "d4", "d5", "d6");
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
|
||||
static inline void *fb_memmove(void *d, const void *s, size_t count)
|
||||
{
|
||||
if (d < s) {
|
||||
if (count < 16) {
|
||||
asm volatile ("\n"
|
||||
" lsr.l #1,%2 ; jcc 1f ; move.b (%1)+,(%0)+\n"
|
||||
"1: lsr.l #1,%2 ; jcc 1f ; move.w (%1)+,(%0)+\n"
|
||||
"1: lsr.l #1,%2 ; jcc 1f ; move.l (%1)+,(%0)+\n"
|
||||
"1: lsr.l #1,%2 ; jcc 1f ; move.l (%1)+,(%0)+ ; move.l (%1)+,(%0)+\n"
|
||||
"1:"
|
||||
: "=a" (d), "=a" (s), "=d" (count)
|
||||
: "0" (d), "1" (s), "2" (count));
|
||||
} else {
|
||||
long tmp;
|
||||
asm volatile ("\n"
|
||||
" move.l %0,%3\n"
|
||||
" lsr.l #1,%3 ; jcc 1f ; move.b (%1)+,(%0)+ ; subqw #1,%2\n"
|
||||
" lsr.l #1,%3 ; jcs 2f\n" /* %0 increased=>bit 2 switched*/
|
||||
" move.w (%1)+,(%0)+ ; subqw #2,%2 ; jra 2f\n"
|
||||
"1: lsr.l #1,%3 ; jcc 2f\n"
|
||||
" move.w (%1)+,(%0)+ ; subqw #2,%2\n"
|
||||
"2: move.w %2,%-; lsr.l #2,%2 ; jeq 6f\n"
|
||||
" lsr.l #1,%2 ; jcc 3f ; move.l (%1)+,(%0)+\n"
|
||||
"3: lsr.l #1,%2 ; jcc 4f ; move.l (%1)+,(%0)+ ; move.l (%1)+,(%0)+\n"
|
||||
"4: subq.l #1,%2 ; jcs 6f\n"
|
||||
"5: move.l (%1)+,(%0)+; move.l (%1)+,(%0)+\n"
|
||||
" move.l (%1)+,(%0)+; move.l (%1)+,(%0)+\n"
|
||||
" dbra %2,5b ; clr.w %2; subq.l #1,%2; jcc 5b\n"
|
||||
"6: move.w %+,%2; btst #1,%2 ; jeq 7f ; move.w (%1)+,(%0)+\n"
|
||||
"7: btst #0,%2 ; jeq 8f ; move.b (%1)+,(%0)+\n"
|
||||
"8:"
|
||||
: "=a" (d), "=a" (s), "=d" (count), "=d" (tmp)
|
||||
: "0" (d), "1" (s), "2" (count));
|
||||
}
|
||||
} else {
|
||||
if (count < 16) {
|
||||
asm volatile ("\n"
|
||||
" lsr.l #1,%2 ; jcc 1f ; move.b -(%1),-(%0)\n"
|
||||
"1: lsr.l #1,%2 ; jcc 1f ; move.w -(%1),-(%0)\n"
|
||||
"1: lsr.l #1,%2 ; jcc 1f ; move.l -(%1),-(%0)\n"
|
||||
"1: lsr.l #1,%2 ; jcc 1f ; move.l -(%1),-(%0) ; move.l -(%1),-(%0)\n"
|
||||
"1:"
|
||||
: "=a" (d), "=a" (s), "=d" (count)
|
||||
: "0" ((char *) d + count), "1" ((char *) s + count), "2" (count));
|
||||
} else {
|
||||
long tmp;
|
||||
|
||||
asm volatile ("\n"
|
||||
" move.l %0,%3\n"
|
||||
" lsr.l #1,%3 ; jcc 1f ; move.b -(%1),-(%0) ; subqw #1,%2\n"
|
||||
" lsr.l #1,%3 ; jcs 2f\n" /* %0 increased=>bit 2 switched*/
|
||||
" move.w -(%1),-(%0) ; subqw #2,%2 ; jra 2f\n"
|
||||
"1: lsr.l #1,%3 ; jcc 2f\n"
|
||||
" move.w -(%1),-(%0) ; subqw #2,%2\n"
|
||||
"2: move.w %2,%-; lsr.l #2,%2 ; jeq 6f\n"
|
||||
" lsr.l #1,%2 ; jcc 3f ; move.l -(%1),-(%0)\n"
|
||||
"3: lsr.l #1,%2 ; jcc 4f ; move.l -(%1),-(%0) ; move.l -(%1),-(%0)\n"
|
||||
"4: subq.l #1,%2 ; jcs 6f\n"
|
||||
"5: move.l -(%1),-(%0); move.l -(%1),-(%0)\n"
|
||||
" move.l -(%1),-(%0); move.l -(%1),-(%0)\n"
|
||||
" dbra %2,5b ; clr.w %2; subq.l #1,%2; jcc 5b\n"
|
||||
"6: move.w %+,%2; btst #1,%2 ; jeq 7f ; move.w -(%1),-(%0)\n"
|
||||
"7: btst #0,%2 ; jeq 8f ; move.b -(%1),-(%0)\n"
|
||||
"8:"
|
||||
: "=a" (d), "=a" (s), "=d" (count), "=d" (tmp)
|
||||
: "0" ((char *) d + count), "1" ((char *) s + count), "2" (count));
|
||||
}
|
||||
}
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
|
||||
/* ++andreas: Simple and fast version of memmove, assumes size is
|
||||
divisible by 16, suitable for moving the whole screen bitplane */
|
||||
static inline void fast_memmove(char *dst, const char *src, size_t size)
|
||||
{
|
||||
if (!size)
|
||||
return;
|
||||
if (dst < src)
|
||||
asm volatile ("\n"
|
||||
"1: movem.l (%0)+,%%d0/%%d1/%%a0/%%a1\n"
|
||||
" movem.l %%d0/%%d1/%%a0/%%a1,%1@\n"
|
||||
" addq.l #8,%1; addq.l #8,%1\n"
|
||||
" dbra %2,1b\n"
|
||||
" clr.w %2; subq.l #1,%2\n"
|
||||
" jcc 1b"
|
||||
: "=a" (src), "=a" (dst), "=d" (size)
|
||||
: "0" (src), "1" (dst), "2" (size / 16 - 1)
|
||||
: "d0", "d1", "a0", "a1", "memory");
|
||||
else
|
||||
asm volatile ("\n"
|
||||
"1: subq.l #8,%0; subq.l #8,%0\n"
|
||||
" movem.l %0@,%%d0/%%d1/%%a0/%%a1\n"
|
||||
" movem.l %%d0/%%d1/%%a0/%%a1,-(%1)\n"
|
||||
" dbra %2,1b\n"
|
||||
" clr.w %2; subq.l #1,%2\n"
|
||||
" jcc 1b"
|
||||
: "=a" (src), "=a" (dst), "=d" (size)
|
||||
: "0" (src + size), "1" (dst + size), "2" (size / 16 - 1)
|
||||
: "d0", "d1", "a0", "a1", "memory");
|
||||
}
|
||||
|
||||
#ifdef BPL
|
||||
|
||||
/*
|
||||
* This expands a up to 8 bit color into two longs
|
||||
* for movel operations.
|
||||
*/
|
||||
static const u32 four2long[] = {
|
||||
0x00000000, 0x000000ff, 0x0000ff00, 0x0000ffff,
|
||||
0x00ff0000, 0x00ff00ff, 0x00ffff00, 0x00ffffff,
|
||||
0xff000000, 0xff0000ff, 0xff00ff00, 0xff00ffff,
|
||||
0xffff0000, 0xffff00ff, 0xffffff00, 0xffffffff,
|
||||
};
|
||||
|
||||
static inline void expand8_col2mask(u8 c, u32 m[])
|
||||
{
|
||||
m[0] = four2long[c & 15];
|
||||
#if BPL > 4
|
||||
m[1] = four2long[c >> 4];
|
||||
#endif
|
||||
}
|
||||
|
||||
static inline void expand8_2col2mask(u8 fg, u8 bg, u32 fgm[], u32 bgm[])
|
||||
{
|
||||
fgm[0] = four2long[fg & 15] ^ (bgm[0] = four2long[bg & 15]);
|
||||
#if BPL > 4
|
||||
fgm[1] = four2long[fg >> 4] ^ (bgm[1] = four2long[bg >> 4]);
|
||||
#endif
|
||||
}
|
||||
|
||||
/*
|
||||
* set an 8bit value to a color
|
||||
*/
|
||||
static inline void fill8_col(u8 *dst, u32 m[])
|
||||
{
|
||||
u32 tmp = m[0];
|
||||
dst[0] = tmp;
|
||||
dst[2] = (tmp >>= 8);
|
||||
#if BPL > 2
|
||||
dst[4] = (tmp >>= 8);
|
||||
dst[6] = tmp >> 8;
|
||||
#endif
|
||||
#if BPL > 4
|
||||
tmp = m[1];
|
||||
dst[8] = tmp;
|
||||
dst[10] = (tmp >>= 8);
|
||||
dst[12] = (tmp >>= 8);
|
||||
dst[14] = tmp >> 8;
|
||||
#endif
|
||||
}
|
||||
|
||||
/*
|
||||
* set an 8bit value according to foreground/background color
|
||||
*/
|
||||
static inline void fill8_2col(u8 *dst, u8 fg, u8 bg, u32 mask)
|
||||
{
|
||||
u32 fgm[2], bgm[2], tmp;
|
||||
|
||||
expand8_2col2mask(fg, bg, fgm, bgm);
|
||||
|
||||
mask |= mask << 8;
|
||||
#if BPL > 2
|
||||
mask |= mask << 16;
|
||||
#endif
|
||||
tmp = (mask & fgm[0]) ^ bgm[0];
|
||||
dst[0] = tmp;
|
||||
dst[2] = (tmp >>= 8);
|
||||
#if BPL > 2
|
||||
dst[4] = (tmp >>= 8);
|
||||
dst[6] = tmp >> 8;
|
||||
#endif
|
||||
#if BPL > 4
|
||||
tmp = (mask & fgm[1]) ^ bgm[1];
|
||||
dst[8] = tmp;
|
||||
dst[10] = (tmp >>= 8);
|
||||
dst[12] = (tmp >>= 8);
|
||||
dst[14] = tmp >> 8;
|
||||
#endif
|
||||
}
|
||||
|
||||
static const u32 two2word[] = {
|
||||
0x00000000, 0xffff0000, 0x0000ffff, 0xffffffff
|
||||
};
|
||||
|
||||
static inline void expand16_col2mask(u8 c, u32 m[])
|
||||
{
|
||||
m[0] = two2word[c & 3];
|
||||
#if BPL > 2
|
||||
m[1] = two2word[(c >> 2) & 3];
|
||||
#endif
|
||||
#if BPL > 4
|
||||
m[2] = two2word[(c >> 4) & 3];
|
||||
m[3] = two2word[c >> 6];
|
||||
#endif
|
||||
}
|
||||
|
||||
static inline void expand16_2col2mask(u8 fg, u8 bg, u32 fgm[], u32 bgm[])
|
||||
{
|
||||
bgm[0] = two2word[bg & 3];
|
||||
fgm[0] = two2word[fg & 3] ^ bgm[0];
|
||||
#if BPL > 2
|
||||
bgm[1] = two2word[(bg >> 2) & 3];
|
||||
fgm[1] = two2word[(fg >> 2) & 3] ^ bgm[1];
|
||||
#endif
|
||||
#if BPL > 4
|
||||
bgm[2] = two2word[(bg >> 4) & 3];
|
||||
fgm[2] = two2word[(fg >> 4) & 3] ^ bgm[2];
|
||||
bgm[3] = two2word[bg >> 6];
|
||||
fgm[3] = two2word[fg >> 6] ^ bgm[3];
|
||||
#endif
|
||||
}
|
||||
|
||||
static inline u32 *fill16_col(u32 *dst, int rows, u32 m[])
|
||||
{
|
||||
while (rows) {
|
||||
*dst++ = m[0];
|
||||
#if BPL > 2
|
||||
*dst++ = m[1];
|
||||
#endif
|
||||
#if BPL > 4
|
||||
*dst++ = m[2];
|
||||
*dst++ = m[3];
|
||||
#endif
|
||||
rows--;
|
||||
}
|
||||
return dst;
|
||||
}
|
||||
|
||||
static inline void memmove32_col(void *dst, void *src, u32 mask, u32 h, u32 bytes)
|
||||
{
|
||||
u32 *s, *d, v;
|
||||
|
||||
s = src;
|
||||
d = dst;
|
||||
do {
|
||||
v = (*s++ & mask) | (*d & ~mask);
|
||||
*d++ = v;
|
||||
#if BPL > 2
|
||||
v = (*s++ & mask) | (*d & ~mask);
|
||||
*d++ = v;
|
||||
#endif
|
||||
#if BPL > 4
|
||||
v = (*s++ & mask) | (*d & ~mask);
|
||||
*d++ = v;
|
||||
v = (*s++ & mask) | (*d & ~mask);
|
||||
*d++ = v;
|
||||
#endif
|
||||
d = (u32 *)((u8 *)d + bytes);
|
||||
s = (u32 *)((u8 *)s + bytes);
|
||||
} while (--h);
|
||||
}
|
||||
|
||||
#endif
|
||||
|
||||
#endif /* _VIDEO_ATAFB_UTILS_H */
|
||||
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