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