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* Creation Date: <2002/10/23 20:26:40 samuel>
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* Time-stamp: <2004/01/07 19:39:15 samuel>
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* Shared video routines
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* Copyright (C) 2002, 2003, 2004 Samuel Rydh (samuel@ibrium.se)
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation
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#include "libc/vsprintf.h"
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#include "libopenbios/bindings.h"
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#include "libopenbios/fontdata.h"
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#include "libopenbios/ofmem.h"
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#include "libopenbios/video.h"
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#include "packages/video.h"
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#include "drivers/vga.h"
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#define NO_QEMU_PROTOS
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#include "arch/common/fw_cfg.h"
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struct video_info video;
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video_get_color( int col_ind )
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if( !VIDEO_DICT_VALUE(video.ih) || col_ind < 0 || col_ind > 255 )
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if( VIDEO_DICT_VALUE(video.depth) == 8 )
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col = video.pal[col_ind];
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if( VIDEO_DICT_VALUE(video.depth) == 24 || VIDEO_DICT_VALUE(video.depth) == 32 )
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if( VIDEO_DICT_VALUE(video.depth) == 15 )
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return ((col>>9) & 0x7c00) | ((col>>6) & 0x03e0) | ((col>>3) & 0x1f);
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/* ( fbaddr maskaddr width height fgcolor bgcolor -- ) */
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ucell bgcolor = POP();
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ucell fgcolor = POP();
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unsigned char *mask = (unsigned char *)POP();
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unsigned char *fbaddr = (unsigned char *)POP();
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unsigned char *dst, *rowdst;
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int x, y, m, b, d, depthbytes;
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fgcolor = video_get_color(fgcolor);
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bgcolor = video_get_color(bgcolor);
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d = VIDEO_DICT_VALUE(video.depth);
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depthbytes = (d + 1) >> 3;
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for( y = 0; y < height; y++) {
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for( x = 0; x < (width + 1) >> 3; x++ ) {
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for (b = 0; b < 8; b++) {
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*((uint32_t*)dst) = color;
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*((uint16_t*)dst) = color;
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dst += VIDEO_DICT_VALUE(video.rb);
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/* ( x y w h fgcolor bgcolor -- ) */
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video_invert_rect( void )
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ucell bgcolor = POP();
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ucell fgcolor = POP();
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bgcolor = video_get_color(bgcolor);
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fgcolor = video_get_color(fgcolor);
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if (!VIDEO_DICT_VALUE(video.ih) || x < 0 || y < 0 || w <= 0 || h <= 0 ||
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x + w > VIDEO_DICT_VALUE(video.w) || y + h > VIDEO_DICT_VALUE(video.h))
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pp = (char*)VIDEO_DICT_VALUE(video.mvirt) + VIDEO_DICT_VALUE(video.rb) * y;
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for( ; h--; pp += *(video.rb) ) {
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if( VIDEO_DICT_VALUE(video.depth) == 24 || VIDEO_DICT_VALUE(video.depth) == 32 ) {
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uint32_t *p = (uint32_t*)pp + x;
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} else if (*p == bgcolor) {
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} else if( VIDEO_DICT_VALUE(video.depth) == 16 || VIDEO_DICT_VALUE(video.depth) == 15 ) {
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uint16_t *p = (uint16_t*)pp + x;
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if (*p == (uint16_t)fgcolor) {
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} else if (*p == (uint16_t)bgcolor) {
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char *p = (char *)(pp + x);
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if (*p == (char)fgcolor) {
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} else if (*p == (char)bgcolor) {
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/* ( color_ind x y width height -- ) (?) */
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video_fill_rect(void)
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unsigned long col = video_get_color(col_ind);
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if (!VIDEO_DICT_VALUE(video.ih) || x < 0 || y < 0 || w <= 0 || h <= 0 ||
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x + w > VIDEO_DICT_VALUE(video.w) || y + h > VIDEO_DICT_VALUE(video.h))
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pp = (char*)VIDEO_DICT_VALUE(video.mvirt) + VIDEO_DICT_VALUE(video.rb) * y;
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for( ; h--; pp += VIDEO_DICT_VALUE(video.rb) ) {
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if( VIDEO_DICT_VALUE(video.depth) == 24 || VIDEO_DICT_VALUE(video.depth) == 32 ) {
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uint32_t *p = (uint32_t*)pp + x;
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} else if( VIDEO_DICT_VALUE(video.depth) == 16 || VIDEO_DICT_VALUE(video.depth) == 15 ) {
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uint16_t *p = (uint16_t*)pp + x;
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char *p = (char *)(pp + x);
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/* Make everything inside the video_info structure point to the
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values in the Forth dictionary. Hence everything is always in
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feval("['] display-ih cell+");
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video.ih = cell2pointer(POP());
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feval("['] frame-buffer-adr cell+");
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video.mvirt = cell2pointer(POP());
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feval("['] openbios-video-width cell+");
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video.w = cell2pointer(POP());
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feval("['] openbios-video-height cell+");
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video.h = cell2pointer(POP());
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feval("['] depth-bits cell+");
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video.depth = cell2pointer(POP());
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feval("['] line-bytes cell+");
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video.rb = cell2pointer(POP());
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feval("['] color-palette cell+");
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video.pal = cell2pointer(POP());
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/* Set global variables ready for fb8-install */
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PUSH( pointer2cell(video_mask_blit) );
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fword("is-noname-cfunc");
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feval("to fb8-blitmask");
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PUSH( pointer2cell(video_fill_rect) );
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fword("is-noname-cfunc");
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feval("to fb8-fillrect");
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PUSH( pointer2cell(video_invert_rect) );
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fword("is-noname-cfunc");
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feval("to fb8-invertrect");
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/* Static information */
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PUSH((ucell)fontdata);
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feval("to (romfont)");
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feval("to (romfont-height)");
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feval("to (romfont-width)");
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/* Initialise the structure */
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VIDEO_DICT_VALUE(video.w) = VGA_DEFAULT_WIDTH;
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VIDEO_DICT_VALUE(video.h) = VGA_DEFAULT_HEIGHT;
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VIDEO_DICT_VALUE(video.depth) = VGA_DEFAULT_DEPTH;
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VIDEO_DICT_VALUE(video.rb) = VGA_DEFAULT_LINEBYTES;
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#if defined(CONFIG_QEMU) && (defined(CONFIG_PPC) || defined(CONFIG_SPARC32) || defined(CONFIG_SPARC64))
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/* If running from QEMU, grab the parameters from the firmware interface */
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w = fw_cfg_read_i16(FW_CFG_ARCH_WIDTH);
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h = fw_cfg_read_i16(FW_CFG_ARCH_HEIGHT);
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d = fw_cfg_read_i16(FW_CFG_ARCH_DEPTH);
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VIDEO_DICT_VALUE(video.w) = w;
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VIDEO_DICT_VALUE(video.h) = h;
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VIDEO_DICT_VALUE(video.depth) = d;
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VIDEO_DICT_VALUE(video.rb) = (w * ((d + 7) / 8));
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/* Setup screen-#rows/screen-#columns */
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options = find_dev("/options");
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snprintf(buf, sizeof(buf), FMT_ucell, VIDEO_DICT_VALUE(video.w) / FONT_WIDTH);
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set_property(options, "screen-#columns", buf, strlen(buf) + 1);
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snprintf(buf, sizeof(buf), FMT_ucell, VIDEO_DICT_VALUE(video.h) / FONT_HEIGHT);
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set_property(options, "screen-#rows", buf, strlen(buf) + 1);