WebSVN – HelenOS-historic – Diff – /uspace/trunk/fb/fb.c


/*
 * Copyright (C) 2006 Jakub Vana
 * Copyright (C) 2006 Ondrej Palkovsky
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 * - Redistributions of source code must retain the above copyright
 *   notice, this list of conditions and the following disclaimer.
 * - Redistributions in binary form must reproduce the above copyright
 *   notice, this list of conditions and the following disclaimer in the
 *   documentation and/or other materials provided with the distribution.
 * - The name of the author may not be used to endorse or promote products
 *   derived from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */
 
#include <stdlib.h>
#include <unistd.h>
#include <string.h>
#include <ddi.h>
#include <sysinfo.h>
#include <align.h>
#include <as.h>
#include <ipc/fb.h>
#include <ipc/ipc.h>
#include <ipc/ns.h>
#include <ipc/services.h>
#include <kernel/errno.h>
#include <async.h>
#include "font-8x16.h"
#include "helenos.xbm"
#include "fb.h"
 
#define DEFAULT_BGCOLOR                0x000080
#define DEFAULT_FGCOLOR                0xffff00
 
/***************************************************************/
/* Pixel specific fuctions */
 
typedef void (*putpixel_fn_t)(unsigned int x, unsigned int y, int color);
typedef int (*getpixel_fn_t)(unsigned int x, unsigned int y);
 
struct {
    __u8 *fbaddress ;
 
    unsigned int xres ;
    unsigned int yres ;
    unsigned int scanline ;
    unsigned int pixelbytes ;
 
    putpixel_fn_t putpixel;
    getpixel_fn_t getpixel;
} screen;
 
typedef struct {
    int initialized;
    unsigned int x, y;
    unsigned int width, height;
 
    /* Text support in window */
    unsigned int rows, cols;
    /* Style for text printing */
    int bgcolor, fgcolor;
    /* Auto-cursor position */
    int cursor_active, cur_col, cur_row;
    int cursor_shown;
} viewport_t;
 
#define MAX_VIEWPORTS 128
static viewport_t viewports[128];
 
/* Allow only 1 connection */
static int client_connected = 0;
 
#define RED(x, bits)    ((x >> (16 + 8 - bits)) & ((1 << bits) - 1))
#define GREEN(x, bits)  ((x >> (8 + 8 - bits)) & ((1 << bits) - 1))
#define BLUE(x, bits)   ((x >> (8 - bits)) & ((1 << bits) - 1))
 
#define COL_WIDTH   8
#define ROW_BYTES   (screen.scanline * FONT_SCANLINES)
 
#define POINTPOS(x, y)  ((y) * screen.scanline + (x) * screen.pixelbytes)
 
/** Put pixel - 24-bit depth, 1 free byte */
static void putpixel_4byte(unsigned int x, unsigned int y, int color)
{
    *((__u32 *)(screen.fbaddress + POINTPOS(x, y))) = color;
}
 
/** Return pixel color - 24-bit depth, 1 free byte */
static int getpixel_4byte(unsigned int x, unsigned int y)
{
    return *((__u32 *)(screen.fbaddress + POINTPOS(x, y))) & 0xffffff;
}
 
/** Put pixel - 24-bit depth */
static void putpixel_3byte(unsigned int x, unsigned int y, int color)
{
    unsigned int startbyte = POINTPOS(x, y);
 
#if (defined(BIG_ENDIAN) || defined(FB_BIG_ENDIAN))
    screen.fbaddress[startbyte] = RED(color, 8);
    screen.fbaddress[startbyte + 1] = GREEN(color, 8);
    screen.fbaddress[startbyte + 2] = BLUE(color, 8);
#else
    screen.fbaddress[startbyte + 2] = RED(color, 8);
    screen.fbaddress[startbyte + 1] = GREEN(color, 8);
    screen.fbaddress[startbyte + 0] = BLUE(color, 8);
#endif
 
}
 
/** Return pixel color - 24-bit depth */
static int getpixel_3byte(unsigned int x, unsigned int y)
{
    unsigned int startbyte = POINTPOS(x, y);
 
 
 
#if (defined(BIG_ENDIAN) || defined(FB_BIG_ENDIAN))
    return screen.fbaddress[startbyte] << 16 | screen.fbaddress[startbyte + 1] << 8 | screen.fbaddress[startbyte + 2];
#else
    return screen.fbaddress[startbyte + 2] << 16 | screen.fbaddress[startbyte + 1] << 8 | screen.fbaddress[startbyte + 0];
#endif
                               
 
}
 
/** Put pixel - 16-bit depth (5:6:5) */
static void putpixel_2byte(unsigned int x, unsigned int y, int color)
{
    /* 5-bit, 6-bits, 5-bits */
    *((__u16 *)(screen.fbaddress + POINTPOS(x, y))) = RED(color, 5) << 11 | GREEN(color, 6) << 5 | BLUE(color, 5);
}
 
/** Return pixel color - 16-bit depth (5:6:5) */
static int getpixel_2byte(unsigned int x, unsigned int y)
{
    int color = *((__u16 *)(screen.fbaddress + POINTPOS(x, y)));
    return (((color >> 11) & 0x1f) << (16 + 3)) | (((color >> 5) & 0x3f) << (8 + 2)) | ((color & 0x1f) << 3);
}
 
/** Put pixel - 8-bit depth (3:2:3) */
static void putpixel_1byte(unsigned int x, unsigned int y, int color)
{
    screen.fbaddress[POINTPOS(x, y)] = RED(color, 3) << 5 | GREEN(color, 2) << 3 | BLUE(color, 3);
}
 
/** Return pixel color - 8-bit depth (3:2:3) */
static int getpixel_1byte(unsigned int x, unsigned int y)
{
    int color = screen.fbaddress[POINTPOS(x, y)];
    return (((color >> 5) & 0x7) << (16 + 5)) | (((color >> 3) & 0x3) << (8 + 6)) | ((color & 0x7) << 5);
}
 
/** Put pixel into viewport
 *
 * @param vp Viewport identification
 * @param x X coord relative to viewport
 * @param y Y coord relative to viewport
 * @param color RGB color
 */
static void putpixel(int vp, unsigned int x, unsigned int y, int color)
{
    screen.putpixel(viewports[vp].x + x, viewports[vp].y + y, color);
}
/** Get pixel from viewport */
static int getpixel(int vp, unsigned int x, unsigned int y)
{
    return screen.getpixel(viewports[vp].x + x, viewports[vp].y + y);
}
 
/** Fill line with color BGCOLOR */
static void clear_line(int vp, unsigned int y)
{
    unsigned int x;
    for (x = 0; x < viewports[vp].width; x++)
        putpixel(vp, x, y, viewports[vp].bgcolor);
}
 
/** Fill viewport with background color */
static void clear_port(int vp)
{
    unsigned int y;
 
    clear_line(vp, 0);
    for (y = viewports[vp].y+1; y < viewports[vp].y+viewports[vp].height; y++) {
        memcpy(&screen.fbaddress[POINTPOS(viewports[vp].x,y)],
               &screen.fbaddress[POINTPOS(viewports[vp].x,viewports[vp].y)],
               screen.pixelbytes * viewports[vp].width);
    }  
}
 
/** Scroll port up/down
 *
 * @param vp Viewport to scroll
 * @param rows Positive number - scroll up, negative - scroll down
 */
static void scroll_port(int vp, int rows)
{
    int y;
    int startline;
    int endline;
   
    if (rows > 0) {
        for (y=viewports[vp].y; y < viewports[vp].y+viewports[vp].height - rows*FONT_SCANLINES; y++)
            memcpy(&screen.fbaddress[POINTPOS(viewports[vp].x,y)],
                   &screen.fbaddress[POINTPOS(viewports[vp].x,y + rows*FONT_SCANLINES)],
                   screen.pixelbytes * viewports[vp].width);
        /* Clear last row */
        startline = viewports[vp].y+FONT_SCANLINES*(viewports[vp].rows-1);
        endline = viewports[vp].y + viewports[vp].height;
        clear_line(vp, startline);
        for (y=startline+1;y < endline; y++)
            memcpy(&screen.fbaddress[POINTPOS(viewports[vp].x,y)],
                   &screen.fbaddress[POINTPOS(viewports[vp].x,startline)],
                   screen.pixelbytes * viewports[vp].width);
                 
    } else if (rows < 0) {
        rows = -rows;
        for (y=viewports[vp].y + viewports[vp].height-1; y >= viewports[vp].y + rows*FONT_SCANLINES; y--)
            memcpy(&screen.fbaddress[POINTPOS(viewports[vp].x,y)],
                &screen.fbaddress[POINTPOS(viewports[vp].x,y - rows*FONT_SCANLINES)],
                screen.pixelbytes * viewports[vp].width);
        /* Clear first row */
        clear_line(0, viewports[vp].bgcolor);
        for (y=1;y < rows*FONT_SCANLINES; y++)
            memcpy(&screen.fbaddress[POINTPOS(viewports[vp].x,viewports[vp].y+y)],
                   &screen.fbaddress[POINTPOS(viewports[vp].x,viewports[vp].y)],
                   screen.pixelbytes * viewports[vp].width);
    }
}
 
static void invert_pixel(int vp,unsigned int x, unsigned int y)
{
    putpixel(vp, x, y, ~getpixel(vp, x, y));
}
 
 
/** Draw one line of glyph at a given position */
static void draw_glyph_line(int vp,unsigned int glline, unsigned int x, unsigned int y)
{
    unsigned int i;
 
    for (i = 0; i < 8; i++)
        if (glline & (1 << (7 - i))) {
            putpixel(vp, x + i, y, viewports[vp].fgcolor);
        } else
            putpixel(vp, x + i, y, viewports[vp].bgcolor);
}
 
/***************************************************************/
/* Character-console functions */
 
/** Draw character at given position */
static void draw_glyph(int vp,__u8 glyph, unsigned int sx, unsigned int sy)
{
    unsigned int y;
 
    for (y = 0; y < FONT_SCANLINES; y++)
        draw_glyph_line(vp ,fb_font[glyph * FONT_SCANLINES + y], sx, sy + y);
}
 
/** Invert character at given position */
static void invert_char(int vp,unsigned int row, unsigned int col)
{
    unsigned int x;
    unsigned int y;
 
    for (x = 0; x < COL_WIDTH; x++)
        for (y = 0; y < FONT_SCANLINES; y++)
            invert_pixel(vp, col * COL_WIDTH + x, row * FONT_SCANLINES + y);
}
 
static void draw_logo(int vp,unsigned int startx, unsigned int starty)
{
    unsigned int x;
    unsigned int y;
    unsigned int byte;
    unsigned int rowbytes;
 
    rowbytes = (helenos_width - 1) / 8 + 1;
 
    for (y = 0; y < helenos_height; y++)
        for (x = 0; x < helenos_width; x++) {
            byte = helenos_bits[rowbytes * y + x / 8];
            byte >>= x % 8;
            if (byte & 1)
                putpixel(vp ,startx + x, starty + y, viewports[vp].fgcolor);
        }
}
 
/***************************************************************/
/* Stdout specific functions */
 
 
/** Create new viewport
 *
 * @return New viewport number
 */
static int viewport_create(unsigned int x, unsigned int y,unsigned int width,
               unsigned int height)
{
    int i;
 
for (i=0; i < MAX_VIEWPORTS; i++) {
        if (!viewports[i].initialized)
            break;
    }
    if (i == MAX_VIEWPORTS)
        return ELIMIT;
 
    if (width ==0 || height == 0 ||
        x+width > screen.xres || y+height > screen.yres)
        return EINVAL;
    if (width < FONT_SCANLINES || height < COL_WIDTH)
        return EINVAL;
 
    viewports[i].x = x;
    viewports[i].y = y;
    viewports[i].width = width;
    viewports[i].height = height;
   
    viewports[i].rows = height / FONT_SCANLINES;
    viewports[i].cols = width / COL_WIDTH;
 
    viewports[i].bgcolor = DEFAULT_BGCOLOR;
    viewports[i].fgcolor = DEFAULT_FGCOLOR;
   
    viewports[i].cur_col = 0;
    viewports[i].cur_row = 0;
    viewports[i].cursor_active = 0;
 
    viewports[i].initialized = 1;
 
    return i;
}
 
 
/** Initialize framebuffer as a chardev output device
 *
 * @param addr Address of theframebuffer
 * @param x    Screen width in pixels
 * @param y    Screen height in pixels
 * @param bpp  Bits per pixel (8, 16, 24, 32)
 * @param scan Bytes per one scanline
 *
 */
static void screen_init(void *addr, unsigned int xres, unsigned int yres, unsigned int bpp, unsigned int scan)
{
    switch (bpp) {
        case 8:
            screen.putpixel = putpixel_1byte;
            screen.getpixel = getpixel_1byte;
            screen.pixelbytes = 1;
            break;
        case 16:
            screen.putpixel = putpixel_2byte;
            screen.getpixel = getpixel_2byte;
            screen.pixelbytes = 2;
            break;
        case 24:
            screen.putpixel = putpixel_3byte;
            screen.getpixel = getpixel_3byte;
            screen.pixelbytes = 3;
            break;
        case 32:
            screen.putpixel = putpixel_4byte;
            screen.getpixel = getpixel_4byte;
            screen.pixelbytes = 4;
            break;
    }
 
       
    screen.fbaddress = (unsigned char *) addr;
    screen.xres = xres;
    screen.yres = yres;
    screen.scanline = scan;
   
    /* Create first viewport */
    viewport_create(0,0,xres,yres);
 
    clear_port(0);
}
 
static void cursor_hide(int vp)
{
    viewport_t *vport = &viewports[vp];
 
    if (vport->cursor_active && vport->cursor_shown) {
        invert_char(vp, vport->cur_row, vport->cur_col);
        vport->cursor_shown = 0;
    }
}
 
static void cursor_print(int vp)
{
    viewport_t *vport = &viewports[vp];
 
    /* Do not check for cursor_shown */
    if (vport->cursor_active) {
        invert_char(vp, vport->cur_row, vport->cur_col);
        vport->cursor_shown = 1;
    }
}
 
static void cursor_blink(int vp)
{
    viewport_t *vport = &viewports[vp];
 
    if (vport->cursor_shown)
        cursor_hide(vp);
    else
        cursor_print(vp);
}
 
/** Draw character at given position relative to viewport
 *
 * @param vp Viewport identification
 * @param c Character to print
 * @param row Screen position relative to viewport
 * @param col Screen position relative to viewport
 */
static void draw_char(int vp, char c, unsigned int row, unsigned int col)
{
    viewport_t *vport = &viewports[vp];
 
    /* Optimize - do not hide cursor if we are going to overwrite it */
    if (vport->cursor_active && vport->cursor_shown &&
        (vport->cur_col != col || vport->cur_row != row))
        invert_char(vp, vport->cur_row, vport->cur_col);
   
    draw_glyph(vp, c, col * COL_WIDTH, row * FONT_SCANLINES);
 
    vport->cur_col = col;
    vport->cur_row = row;
 
    vport->cur_col++;
    if (vport->cur_col>= vport->cols) {
        vport->cur_col = 0;
        vport->cur_row++;
        if (vport->cur_row >= vport->rows)
            vport->cur_row--;
    }
    cursor_print(vp);
}
 
/** Function for handling connections to FB
 *
 */
static void fb_client_connection(ipc_callid_t iid, ipc_call_t *icall)
{
    ipc_callid_t callid;
    ipc_call_t call;
    int retval;
    int i;
    unsigned int row,col;
    char c;
 
    int vp = 0;
    viewport_t *vport = &viewports[0];
 
    if (client_connected) {
        ipc_answer_fast(iid, ELIMIT, 0,0);
        return;
    }
    client_connected = 1;
    ipc_answer_fast(iid, 0, 0, 0); /* Accept connection */
 
    while (1) {
        callid = async_get_call_timeout(&call,250000);
        if (!callid) {
            cursor_blink(vp);
            continue;
        }
        switch (IPC_GET_METHOD(call)) {
        case IPC_M_PHONE_HUNGUP:
            client_connected = 0;
            /* cleanup other viewports */
            for (i=1; i < MAX_VIEWPORTS; i++)
                vport->initialized = 0;
            ipc_answer_fast(callid,0,0,0);
            return; /* Exit thread */
        case FB_PUTCHAR:
            c = IPC_GET_ARG1(call);
            row = IPC_GET_ARG2(call);
            col = IPC_GET_ARG3(call);
            if (row >= vport->rows || col >= vport->cols) {
                retval = EINVAL;
                break;
            }
            ipc_answer_fast(callid,0,0,0);
 
            draw_char(vp, c, row, col);
            continue; /* msg already answered */
        case FB_CLEAR:
            clear_port(vp);
            cursor_print(vp);
            retval = 0;
            break;
        case FB_CURSOR_GOTO:
            row = IPC_GET_ARG1(call);
            col = IPC_GET_ARG2(call);
            if (row >= vport->rows || col >= vport->cols) {
                retval = EINVAL;
                break;
            }
            retval = 0;
            cursor_hide(vp);
            vport->cur_col = col;
            vport->cur_row = row;
            cursor_print(vp);
            break;
        case FB_CURSOR_VISIBILITY:
            cursor_hide(vp);
            vport->cursor_active = IPC_GET_ARG1(call);
            cursor_print(vp);
            retval = 0;
            break;
        case FB_GET_CSIZE:
            ipc_answer_fast(callid, 0, vport->rows, vport->cols);
            continue;
        case FB_SCROLL:
            i = IPC_GET_ARG1(call);
            if (i > vport->rows || i < (- (int)vport->rows)) {
                retval = EINVAL;
                break;
            }
            cursor_hide(vp);
            scroll_port(vp, i);
            cursor_print(vp);
            retval = 0;
            break;
        case FB_VIEWPORT_SWITCH:
            i = IPC_GET_ARG1(call);
            if (i < 0 || i >= MAX_VIEWPORTS) {
                retval = EINVAL;
                break;
            }
            if (! viewports[i].initialized ) {
                retval = EADDRNOTAVAIL;
                break;
            }
            cursor_hide(vp);
            vp = i;
            vport = &viewports[vp];
            cursor_print(vp);
            retval = 0;
            break;
        case FB_VIEWPORT_CREATE:
            retval = viewport_create(IPC_GET_ARG1(call) >> 16,
                         IPC_GET_ARG1(call) & 0xffff,
                         IPC_GET_ARG2(call) >> 16,
                         IPC_GET_ARG2(call) & 0xffff);
            break;
        case FB_VIEWPORT_DELETE:
            i = IPC_GET_ARG1(call);
            if (i < 0 || i >= MAX_VIEWPORTS) {
                retval = EINVAL;
                break;
            }
            if (! viewports[i].initialized ) {
                retval = EADDRNOTAVAIL;
                break;
            }
            viewports[i].initialized = 0;
            retval = 0;
            break;
        case FB_SET_STYLE:
            vport->fgcolor = IPC_GET_ARG1(call);
            vport->bgcolor = IPC_GET_ARG2(call);
            retval = 0;
            break;
        case FB_GET_RESOLUTION:
            ipc_answer_fast(callid, 0, screen.xres,screen.yres);
            continue;
        default:
            retval = ENOENT;
        }
        ipc_answer_fast(callid,retval,0,0);
    }
}
 
/** Initialization of framebuffer */
int fb_init(void)
{
    void *fb_ph_addr;
    unsigned int fb_width;
    unsigned int fb_height;
    unsigned int fb_bpp;
    unsigned int fb_scanline;
    void *fb_addr;
    size_t asz;
 
    async_set_client_connection(fb_client_connection);
 
    fb_ph_addr=(void *)sysinfo_value("fb.address.physical");
    fb_width=sysinfo_value("fb.width");
    fb_height=sysinfo_value("fb.height");
    fb_bpp=sysinfo_value("fb.bpp");
    fb_scanline=sysinfo_value("fb.scanline");
 
    asz = fb_scanline*fb_height;
    fb_addr = as_get_mappable_page(asz);
   
 
    map_physmem(fb_ph_addr, fb_addr, ALIGN_UP(asz,PAGE_SIZE) >>PAGE_WIDTH,
            AS_AREA_READ | AS_AREA_WRITE | AS_AREA_CACHEABLE);
   
    screen_init(fb_addr, fb_width, fb_height, fb_bpp, fb_scanline);
 
    return 0;
}
 
 

Rev 1500	Rev 1501
1	/*	1	/*
2	* Copyright (C) 2006 Jakub Vana	2	* Copyright (C) 2006 Jakub Vana
3	* Copyright (C) 2006 Ondrej Palkovsky	3	* Copyright (C) 2006 Ondrej Palkovsky
4	* All rights reserved.	4	* All rights reserved.
5	*	5	*
6	* Redistribution and use in source and binary forms, with or without	6	* Redistribution and use in source and binary forms, with or without
7	* modification, are permitted provided that the following conditions	7	* modification, are permitted provided that the following conditions
8	* are met:	8	* are met:
9	*	9	*
10	* - Redistributions of source code must retain the above copyright	10	* - Redistributions of source code must retain the above copyright
11	* notice, this list of conditions and the following disclaimer.	11	* notice, this list of conditions and the following disclaimer.
12	* - Redistributions in binary form must reproduce the above copyright	12	* - Redistributions in binary form must reproduce the above copyright
13	* notice, this list of conditions and the following disclaimer in the	13	* notice, this list of conditions and the following disclaimer in the
14	* documentation and/or other materials provided with the distribution.	14	* documentation and/or other materials provided with the distribution.
15	* - The name of the author may not be used to endorse or promote products	15	* - The name of the author may not be used to endorse or promote products
16	* derived from this software without specific prior written permission.	16	* derived from this software without specific prior written permission.
17	*	17	*
18	* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR	18	* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
19	* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES	19	* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
20	* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.	20	* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
21	* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,	21	* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
22	* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT	22	* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
23	* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,	23	* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
24	* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY	24	* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
25	* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT	25	* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
26	* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF	26	* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
27	* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.	27	* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
28	*/	28	*/
29		29
30	#include <stdlib.h>	30	#include <stdlib.h>
31	#include <unistd.h>	31	#include <unistd.h>
32	#include <string.h>	32	#include <string.h>
33	#include <ddi.h>	33	#include <ddi.h>
34	#include <sysinfo.h>	34	#include <sysinfo.h>
35	#include <align.h>	35	#include <align.h>
36	#include <as.h>	36	#include <as.h>
37	#include <ipc/fb.h>	37	#include <ipc/fb.h>
38	#include <ipc/ipc.h>	38	#include <ipc/ipc.h>
39	#include <ipc/ns.h>	39	#include <ipc/ns.h>
40	#include <ipc/services.h>	40	#include <ipc/services.h>
41	#include <kernel/errno.h>	41	#include <kernel/errno.h>
42	#include <async.h>	42	#include <async.h>
43	#include "font-8x16.h"	43	#include "font-8x16.h"
44	#include "helenos.xbm"	44	#include "helenos.xbm"
45	#include "fb.h"	45	#include "fb.h"
46		46
47	#define DEFAULT_BGCOLOR 0x000080	47	#define DEFAULT_BGCOLOR 0x000080
48	#define DEFAULT_FGCOLOR 0xffff00	48	#define DEFAULT_FGCOLOR 0xffff00
49		49
50	/***************************************************************/	50	/***************************************************************/
51	/* Pixel specific fuctions */	51	/* Pixel specific fuctions */
52		52
53	typedef void (*putpixel_fn_t)(unsigned int x, unsigned int y, int color);	53	typedef void (*putpixel_fn_t)(unsigned int x, unsigned int y, int color);
54	typedef int (*getpixel_fn_t)(unsigned int x, unsigned int y);	54	typedef int (*getpixel_fn_t)(unsigned int x, unsigned int y);
55		55
56	struct {	56	struct {
57	__u8 *fbaddress ;	57	__u8 *fbaddress ;
58		58
59	unsigned int xres ;	59	unsigned int xres ;
60	unsigned int yres ;	60	unsigned int yres ;
61	unsigned int scanline ;	61	unsigned int scanline ;
62	unsigned int pixelbytes ;	62	unsigned int pixelbytes ;
63		63
64	putpixel_fn_t putpixel;	64	putpixel_fn_t putpixel;
65	getpixel_fn_t getpixel;	65	getpixel_fn_t getpixel;
66	} screen;	66	} screen;
67		67
68	typedef struct {	68	typedef struct {
69	int initialized;	69	int initialized;
70	unsigned int x, y;	70	unsigned int x, y;
71	unsigned int width, height;	71	unsigned int width, height;
72		72
73	/* Text support in window */	73	/* Text support in window */
74	unsigned int rows, cols;	74	unsigned int rows, cols;
75	/* Style for text printing */	75	/* Style for text printing */
76	int bgcolor, fgcolor;	76	int bgcolor, fgcolor;
77	/* Auto-cursor position */	77	/* Auto-cursor position */
78	int cursor_active, cur_col, cur_row;	78	int cursor_active, cur_col, cur_row;
79	int cursor_shown;	79	int cursor_shown;
80	} viewport_t;	80	} viewport_t;
81		81
82	#define MAX_VIEWPORTS 128	82	#define MAX_VIEWPORTS 128
83	static viewport_t viewports[128];	83	static viewport_t viewports[128];
84		84
85	/* Allow only 1 connection */	85	/* Allow only 1 connection */
86	static int client_connected = 0;	86	static int client_connected = 0;
87		87
88	#define RED(x, bits) ((x >> (16 + 8 - bits)) & ((1 << bits) - 1))	88	#define RED(x, bits) ((x >> (16 + 8 - bits)) & ((1 << bits) - 1))
89	#define GREEN(x, bits) ((x >> (8 + 8 - bits)) & ((1 << bits) - 1))	89	#define GREEN(x, bits) ((x >> (8 + 8 - bits)) & ((1 << bits) - 1))
90	#define BLUE(x, bits) ((x >> (8 - bits)) & ((1 << bits) - 1))	90	#define BLUE(x, bits) ((x >> (8 - bits)) & ((1 << bits) - 1))
91		91
92	#define COL_WIDTH 8	92	#define COL_WIDTH 8
93	#define ROW_BYTES (screen.scanline * FONT_SCANLINES)	93	#define ROW_BYTES (screen.scanline * FONT_SCANLINES)
94		94
95	#define POINTPOS(x, y) ((y) * screen.scanline + (x) * screen.pixelbytes)	95	#define POINTPOS(x, y) ((y) * screen.scanline + (x) * screen.pixelbytes)
96		96
97	/** Put pixel - 24-bit depth, 1 free byte */	97	/** Put pixel - 24-bit depth, 1 free byte */
98	static void putpixel_4byte(unsigned int x, unsigned int y, int color)	98	static void putpixel_4byte(unsigned int x, unsigned int y, int color)
99	{	99	{
100	((__u32 )(screen.fbaddress + POINTPOS(x, y))) = color;	100	((__u32 )(screen.fbaddress + POINTPOS(x, y))) = color;
101	}	101	}
102		102
103	/** Return pixel color - 24-bit depth, 1 free byte */	103	/** Return pixel color - 24-bit depth, 1 free byte */
104	static int getpixel_4byte(unsigned int x, unsigned int y)	104	static int getpixel_4byte(unsigned int x, unsigned int y)
105	{	105	{
106	return ((__u32 )(screen.fbaddress + POINTPOS(x, y))) & 0xffffff;	106	return ((__u32 )(screen.fbaddress + POINTPOS(x, y))) & 0xffffff;
107	}	107	}
108		108
109	/** Put pixel - 24-bit depth */	109	/** Put pixel - 24-bit depth */
110	static void putpixel_3byte(unsigned int x, unsigned int y, int color)	110	static void putpixel_3byte(unsigned int x, unsigned int y, int color)
111	{	111	{
112	unsigned int startbyte = POINTPOS(x, y);	112	unsigned int startbyte = POINTPOS(x, y);
113		113
114	#if (defined(BIG_ENDIAN) \|\| defined(FB_BIG_ENDIAN))	114	#if (defined(BIG_ENDIAN) \|\| defined(FB_BIG_ENDIAN))
115	screen.fbaddress[startbyte] = RED(color, 8);	115	screen.fbaddress[startbyte] = RED(color, 8);
116	screen.fbaddress[startbyte + 1] = GREEN(color, 8);	116	screen.fbaddress[startbyte + 1] = GREEN(color, 8);
117	screen.fbaddress[startbyte + 2] = BLUE(color, 8);	117	screen.fbaddress[startbyte + 2] = BLUE(color, 8);
118	#else	118	#else
119	screen.fbaddress[startbyte + 2] = RED(color, 8);	119	screen.fbaddress[startbyte + 2] = RED(color, 8);
120	screen.fbaddress[startbyte + 1] = GREEN(color, 8);	120	screen.fbaddress[startbyte + 1] = GREEN(color, 8);
121	screen.fbaddress[startbyte + 0] = BLUE(color, 8);	121	screen.fbaddress[startbyte + 0] = BLUE(color, 8);
122	#endif	122	#endif
123		123
124	}	124	}
125		125
126	/** Return pixel color - 24-bit depth */	126	/** Return pixel color - 24-bit depth */
127	static int getpixel_3byte(unsigned int x, unsigned int y)	127	static int getpixel_3byte(unsigned int x, unsigned int y)
128	{	128	{
129	unsigned int startbyte = POINTPOS(x, y);	129	unsigned int startbyte = POINTPOS(x, y);
130		130
131		131
132		132
133	#if (defined(BIG_ENDIAN) \|\| defined(FB_BIG_ENDIAN))	133	#if (defined(BIG_ENDIAN) \|\| defined(FB_BIG_ENDIAN))
134	return screen.fbaddress[startbyte] << 16 \| screen.fbaddress[startbyte + 1] << 8 \| screen.fbaddress[startbyte + 2];	134	return screen.fbaddress[startbyte] << 16 \| screen.fbaddress[startbyte + 1] << 8 \| screen.fbaddress[startbyte + 2];
135	#else	135	#else
136	return screen.fbaddress[startbyte + 2] << 16 \| screen.fbaddress[startbyte + 1] << 8 \| screen.fbaddress[startbyte + 0];	136	return screen.fbaddress[startbyte + 2] << 16 \| screen.fbaddress[startbyte + 1] << 8 \| screen.fbaddress[startbyte + 0];
137	#endif	137	#endif
138		138
139		139
140	}	140	}
141		141
142	/** Put pixel - 16-bit depth (5:6:5) */	142	/** Put pixel - 16-bit depth (5:6:5) */
143	static void putpixel_2byte(unsigned int x, unsigned int y, int color)	143	static void putpixel_2byte(unsigned int x, unsigned int y, int color)
144	{	144	{
145	/* 5-bit, 6-bits, 5-bits */	145	/* 5-bit, 6-bits, 5-bits */
146	((__u16 )(screen.fbaddress + POINTPOS(x, y))) = RED(color, 5) << 11 \| GREEN(color, 6) << 5 \| BLUE(color, 5);	146	((__u16 )(screen.fbaddress + POINTPOS(x, y))) = RED(color, 5) << 11 \| GREEN(color, 6) << 5 \| BLUE(color, 5);
147	}	147	}
148		148
149	/** Return pixel color - 16-bit depth (5:6:5) */	149	/** Return pixel color - 16-bit depth (5:6:5) */
150	static int getpixel_2byte(unsigned int x, unsigned int y)	150	static int getpixel_2byte(unsigned int x, unsigned int y)
151	{	151	{
152	int color = ((__u16 )(screen.fbaddress + POINTPOS(x, y)));	152	int color = ((__u16 )(screen.fbaddress + POINTPOS(x, y)));
153	return (((color >> 11) & 0x1f) << (16 + 3)) \| (((color >> 5) & 0x3f) << (8 + 2)) \| ((color & 0x1f) << 3);	153	return (((color >> 11) & 0x1f) << (16 + 3)) \| (((color >> 5) & 0x3f) << (8 + 2)) \| ((color & 0x1f) << 3);
154	}	154	}
155		155
156	/** Put pixel - 8-bit depth (3:2:3) */	156	/** Put pixel - 8-bit depth (3:2:3) */
157	static void putpixel_1byte(unsigned int x, unsigned int y, int color)	157	static void putpixel_1byte(unsigned int x, unsigned int y, int color)
158	{	158	{
159	screen.fbaddress[POINTPOS(x, y)] = RED(color, 3) << 5 \| GREEN(color, 2) << 3 \| BLUE(color, 3);	159	screen.fbaddress[POINTPOS(x, y)] = RED(color, 3) << 5 \| GREEN(color, 2) << 3 \| BLUE(color, 3);
160	}	160	}
161		161
162	/** Return pixel color - 8-bit depth (3:2:3) */	162	/** Return pixel color - 8-bit depth (3:2:3) */
163	static int getpixel_1byte(unsigned int x, unsigned int y)	163	static int getpixel_1byte(unsigned int x, unsigned int y)
164	{	164	{
165	int color = screen.fbaddress[POINTPOS(x, y)];	165	int color = screen.fbaddress[POINTPOS(x, y)];
166	return (((color >> 5) & 0x7) << (16 + 5)) \| (((color >> 3) & 0x3) << (8 + 6)) \| ((color & 0x7) << 5);	166	return (((color >> 5) & 0x7) << (16 + 5)) \| (((color >> 3) & 0x3) << (8 + 6)) \| ((color & 0x7) << 5);
167	}	167	}
168		168
169	/** Put pixel into viewport	169	/** Put pixel into viewport
170	*	170	*
171	* @param vp Viewport identification	171	* @param vp Viewport identification
172	* @param x X coord relative to viewport	172	* @param x X coord relative to viewport
173	* @param y Y coord relative to viewport	173	* @param y Y coord relative to viewport
174	* @param color RGB color	174	* @param color RGB color
175	*/	175	*/
176	static void putpixel(int vp, unsigned int x, unsigned int y, int color)	176	static void putpixel(int vp, unsigned int x, unsigned int y, int color)
177	{	177	{
178	screen.putpixel(viewports[vp].x + x, viewports[vp].y + y, color);	178	screen.putpixel(viewports[vp].x + x, viewports[vp].y + y, color);
179	}	179	}
180	/** Get pixel from viewport */	180	/** Get pixel from viewport */
181	static int getpixel(int vp, unsigned int x, unsigned int y)	181	static int getpixel(int vp, unsigned int x, unsigned int y)
182	{	182	{
183	return screen.getpixel(viewports[vp].x + x, viewports[vp].y + y);	183	return screen.getpixel(viewports[vp].x + x, viewports[vp].y + y);
184	}	184	}
185		185
186	/** Fill line with color BGCOLOR */	186	/** Fill line with color BGCOLOR */
187	static void clear_line(int vp, unsigned int y)	187	static void clear_line(int vp, unsigned int y)
188	{	188	{
189	unsigned int x;	189	unsigned int x;
190	for (x = 0; x < viewports[vp].width; x++)	190	for (x = 0; x < viewports[vp].width; x++)
191	putpixel(vp, x, y, viewports[vp].bgcolor);	191	putpixel(vp, x, y, viewports[vp].bgcolor);
192	}	192	}
193		193
194	/** Fill viewport with background color */	194	/** Fill viewport with background color */
195	static void clear_port(int vp)	195	static void clear_port(int vp)
196	{	196	{
197	unsigned int y;	197	unsigned int y;
198		198
199	clear_line(vp, 0);	199	clear_line(vp, 0);
200	for (y = viewports[vp].y+1; y < viewports[vp].y+viewports[vp].height; y++) {	200	for (y = viewports[vp].y+1; y < viewports[vp].y+viewports[vp].height; y++) {
201	memcpy(&screen.fbaddress[POINTPOS(viewports[vp].x,y)],	201	memcpy(&screen.fbaddress[POINTPOS(viewports[vp].x,y)],
202	&screen.fbaddress[POINTPOS(viewports[vp].x,viewports[vp].y)],	202	&screen.fbaddress[POINTPOS(viewports[vp].x,viewports[vp].y)],
203	screen.pixelbytes * viewports[vp].width);	203	screen.pixelbytes * viewports[vp].width);
204	}	204	}
205	}	205	}
206		206
207	/** Scroll port up/down	207	/** Scroll port up/down
208	*	208	*
209	* @param vp Viewport to scroll	209	* @param vp Viewport to scroll
210	* @param rows Positive number - scroll up, negative - scroll down	210	* @param rows Positive number - scroll up, negative - scroll down
211	*/	211	*/
212	static void scroll_port(int vp, int rows)	212	static void scroll_port(int vp, int rows)
213	{	213	{
214	int y;	214	int y;
215	int startline;	215	int startline;
216	int endline;	216	int endline;
217		217
218	if (rows > 0) {	218	if (rows > 0) {
219	for (y=viewports[vp].y; y < viewports[vp].y+viewports[vp].height - rows*FONT_SCANLINES; y++)	219	for (y=viewports[vp].y; y < viewports[vp].y+viewports[vp].height - rows*FONT_SCANLINES; y++)
220	memcpy(&screen.fbaddress[POINTPOS(viewports[vp].x,y)],	220	memcpy(&screen.fbaddress[POINTPOS(viewports[vp].x,y)],
221	&screen.fbaddress[POINTPOS(viewports[vp].x,y + rows*FONT_SCANLINES)],	221	&screen.fbaddress[POINTPOS(viewports[vp].x,y + rows*FONT_SCANLINES)],
222	screen.pixelbytes * viewports[vp].width);	222	screen.pixelbytes * viewports[vp].width);
223	/* Clear last row */	223	/* Clear last row */
224	startline = viewports[vp].y+FONT_SCANLINES*(viewports[vp].rows-1);	224	startline = viewports[vp].y+FONT_SCANLINES*(viewports[vp].rows-1);
225	endline = viewports[vp].y + viewports[vp].height;	225	endline = viewports[vp].y + viewports[vp].height;
226	clear_line(vp, startline);	226	clear_line(vp, startline);
227	for (y=startline+1;y < endline; y++)	227	for (y=startline+1;y < endline; y++)
228	memcpy(&screen.fbaddress[POINTPOS(viewports[vp].x,y)],	228	memcpy(&screen.fbaddress[POINTPOS(viewports[vp].x,y)],
229	&screen.fbaddress[POINTPOS(viewports[vp].x,startline)],	229	&screen.fbaddress[POINTPOS(viewports[vp].x,startline)],
230	screen.pixelbytes * viewports[vp].width);	230	screen.pixelbytes * viewports[vp].width);
231		231
232	} else if (rows < 0) {	232	} else if (rows < 0) {
233	rows = -rows;	233	rows = -rows;
234	for (y=viewports[vp].y + viewports[vp].height-1; y >= viewports[vp].y + rows*FONT_SCANLINES; y--)	234	for (y=viewports[vp].y + viewports[vp].height-1; y >= viewports[vp].y + rows*FONT_SCANLINES; y--)
235	memcpy(&screen.fbaddress[POINTPOS(viewports[vp].x,y)],	235	memcpy(&screen.fbaddress[POINTPOS(viewports[vp].x,y)],
236	&screen.fbaddress[POINTPOS(viewports[vp].x,y - rows*FONT_SCANLINES)],	236	&screen.fbaddress[POINTPOS(viewports[vp].x,y - rows*FONT_SCANLINES)],
237	screen.pixelbytes * viewports[vp].width);	237	screen.pixelbytes * viewports[vp].width);
238	/* Clear first row */	238	/* Clear first row */
239	clear_line(0, viewports[vp].bgcolor);	239	clear_line(0, viewports[vp].bgcolor);
240	for (y=1;y < rows*FONT_SCANLINES; y++)	240	for (y=1;y < rows*FONT_SCANLINES; y++)
241	memcpy(&screen.fbaddress[POINTPOS(viewports[vp].x,viewports[vp].y+y)],	241	memcpy(&screen.fbaddress[POINTPOS(viewports[vp].x,viewports[vp].y+y)],
242	&screen.fbaddress[POINTPOS(viewports[vp].x,viewports[vp].y)],	242	&screen.fbaddress[POINTPOS(viewports[vp].x,viewports[vp].y)],
243	screen.pixelbytes * viewports[vp].width);	243	screen.pixelbytes * viewports[vp].width);
244	}	244	}
245	}	245	}
246		246
247	static void invert_pixel(int vp,unsigned int x, unsigned int y)	247	static void invert_pixel(int vp,unsigned int x, unsigned int y)
248	{	248	{
249	putpixel(vp, x, y, ~getpixel(vp, x, y));	249	putpixel(vp, x, y, ~getpixel(vp, x, y));
250	}	250	}
251		251
252		252
253	/** Draw one line of glyph at a given position */	253	/** Draw one line of glyph at a given position */
254	static void draw_glyph_line(int vp,unsigned int glline, unsigned int x, unsigned int y)	254	static void draw_glyph_line(int vp,unsigned int glline, unsigned int x, unsigned int y)
255	{	255	{
256	unsigned int i;	256	unsigned int i;
257		257
258	for (i = 0; i < 8; i++)	258	for (i = 0; i < 8; i++)
259	if (glline & (1 << (7 - i))) {	259	if (glline & (1 << (7 - i))) {
260	putpixel(vp, x + i, y, viewports[vp].fgcolor);	260	putpixel(vp, x + i, y, viewports[vp].fgcolor);
261	} else	261	} else
262	putpixel(vp, x + i, y, viewports[vp].bgcolor);	262	putpixel(vp, x + i, y, viewports[vp].bgcolor);
263	}	263	}
264		264
265	/***************************************************************/	265	/***************************************************************/
266	/* Character-console functions */	266	/* Character-console functions */
267		267
268	/** Draw character at given position */	268	/** Draw character at given position */
269	static void draw_glyph(int vp,__u8 glyph, unsigned int sx, unsigned int sy)	269	static void draw_glyph(int vp,__u8 glyph, unsigned int sx, unsigned int sy)
270	{	270	{
271	unsigned int y;	271	unsigned int y;
272		272
273	for (y = 0; y < FONT_SCANLINES; y++)	273	for (y = 0; y < FONT_SCANLINES; y++)
274	draw_glyph_line(vp ,fb_font[glyph * FONT_SCANLINES + y], sx, sy + y);	274	draw_glyph_line(vp ,fb_font[glyph * FONT_SCANLINES + y], sx, sy + y);
275	}	275	}
276		276
277	/** Invert character at given position */	277	/** Invert character at given position */
278	static void invert_char(int vp,unsigned int row, unsigned int col)	278	static void invert_char(int vp,unsigned int row, unsigned int col)
279	{	279	{
280	unsigned int x;	280	unsigned int x;
281	unsigned int y;	281	unsigned int y;
282		282
283	for (x = 0; x < COL_WIDTH; x++)	283	for (x = 0; x < COL_WIDTH; x++)
284	for (y = 0; y < FONT_SCANLINES; y++)	284	for (y = 0; y < FONT_SCANLINES; y++)
285	invert_pixel(vp, col * COL_WIDTH + x, row * FONT_SCANLINES + y);	285	invert_pixel(vp, col * COL_WIDTH + x, row * FONT_SCANLINES + y);
286	}	286	}
287		287
288	static void draw_logo(int vp,unsigned int startx, unsigned int starty)	288	static void draw_logo(int vp,unsigned int startx, unsigned int starty)
289	{	289	{
290	unsigned int x;	290	unsigned int x;
291	unsigned int y;	291	unsigned int y;
292	unsigned int byte;	292	unsigned int byte;
293	unsigned int rowbytes;	293	unsigned int rowbytes;
294		294
295	rowbytes = (helenos_width - 1) / 8 + 1;	295	rowbytes = (helenos_width - 1) / 8 + 1;
296		296
297	for (y = 0; y < helenos_height; y++)	297	for (y = 0; y < helenos_height; y++)
298	for (x = 0; x < helenos_width; x++) {	298	for (x = 0; x < helenos_width; x++) {
299	byte = helenos_bits[rowbytes * y + x / 8];	299	byte = helenos_bits[rowbytes * y + x / 8];
300	byte >>= x % 8;	300	byte >>= x % 8;
301	if (byte & 1)	301	if (byte & 1)
302	putpixel(vp ,startx + x, starty + y, viewports[vp].fgcolor);	302	putpixel(vp ,startx + x, starty + y, viewports[vp].fgcolor);
303	}	303	}
304	}	304	}
305		305
306	/***************************************************************/	306	/***************************************************************/
307	/* Stdout specific functions */	307	/* Stdout specific functions */
308		308
309		309
310	/** Create new viewport	310	/** Create new viewport
311	*	311	*
312	* @return New viewport number	312	* @return New viewport number
313	*/	313	*/
314	static int viewport_create(unsigned int x, unsigned int y,unsigned int width,	314	static int viewport_create(unsigned int x, unsigned int y,unsigned int width,
315	unsigned int height)	315	unsigned int height)
316	{	316	{
317	int i;	317	int i;
318		318
319	for (i=0; i < MAX_VIEWPORTS; i++) {	319	for (i=0; i < MAX_VIEWPORTS; i++) {
320	if (!viewports[i].initialized)	320	if (!viewports[i].initialized)
321	break;	321	break;
322	}	322	}
323	if (i == MAX_VIEWPORTS)	323	if (i == MAX_VIEWPORTS)
324	return ELIMIT;	324	return ELIMIT;
325		325
326	if (width ==0 \|\| height == 0 \|\|	326	if (width ==0 \|\| height == 0 \|\|
327	x+width > screen.xres \|\| y+height > screen.yres)	327	x+width > screen.xres \|\| y+height > screen.yres)
328	return EINVAL;	328	return EINVAL;
329	if (width < FONT_SCANLINES \|\| height < COL_WIDTH)	329	if (width < FONT_SCANLINES \|\| height < COL_WIDTH)
330	return EINVAL;	330	return EINVAL;
331		331
332	viewports[i].x = x;	332	viewports[i].x = x;
333	viewports[i].y = y;	333	viewports[i].y = y;
334	viewports[i].width = width;	334	viewports[i].width = width;
335	viewports[i].height = height;	335	viewports[i].height = height;
336		336
337	viewports[i].rows = height / FONT_SCANLINES;	337	viewports[i].rows = height / FONT_SCANLINES;
338	viewports[i].cols = width / COL_WIDTH;	338	viewports[i].cols = width / COL_WIDTH;
339		339
340	viewports[i].bgcolor = DEFAULT_BGCOLOR;	340	viewports[i].bgcolor = DEFAULT_BGCOLOR;
341	viewports[i].fgcolor = DEFAULT_FGCOLOR;	341	viewports[i].fgcolor = DEFAULT_FGCOLOR;
342		342
343	viewports[i].cur_col = 0;	343	viewports[i].cur_col = 0;
344	viewports[i].cur_row = 0;	344	viewports[i].cur_row = 0;
345	viewports[i].cursor_active = 0;	345	viewports[i].cursor_active = 0;
346		346
347	viewports[i].initialized = 1;	347	viewports[i].initialized = 1;
348		348
349	return i;	349	return i;
350	}	350	}
351		351
352		352
353	/** Initialize framebuffer as a chardev output device	353	/** Initialize framebuffer as a chardev output device
354	*	354	*
355	* @param addr Address of theframebuffer	355	* @param addr Address of theframebuffer
356	* @param x Screen width in pixels	356	* @param x Screen width in pixels
357	* @param y Screen height in pixels	357	* @param y Screen height in pixels
358	* @param bpp Bits per pixel (8, 16, 24, 32)	358	* @param bpp Bits per pixel (8, 16, 24, 32)
359	* @param scan Bytes per one scanline	359	* @param scan Bytes per one scanline
360	*	360	*
361	*/	361	*/
362	static void screen_init(__address addr, unsigned int xres, unsigned int yres, unsigned int bpp, unsigned int scan)	362	static void screen_init(void *addr, unsigned int xres, unsigned int yres, unsigned int bpp, unsigned int scan)
363	{	363	{
364	switch (bpp) {	364	switch (bpp) {
365	case 8:	365	case 8:
366	screen.putpixel = putpixel_1byte;	366	screen.putpixel = putpixel_1byte;
367	screen.getpixel = getpixel_1byte;	367	screen.getpixel = getpixel_1byte;
368	screen.pixelbytes = 1;	368	screen.pixelbytes = 1;
369	break;	369	break;
370	case 16:	370	case 16:
371	screen.putpixel = putpixel_2byte;	371	screen.putpixel = putpixel_2byte;
372	screen.getpixel = getpixel_2byte;	372	screen.getpixel = getpixel_2byte;
373	screen.pixelbytes = 2;	373	screen.pixelbytes = 2;
374	break;	374	break;
375	case 24:	375	case 24:
376	screen.putpixel = putpixel_3byte;	376	screen.putpixel = putpixel_3byte;
377	screen.getpixel = getpixel_3byte;	377	screen.getpixel = getpixel_3byte;
378	screen.pixelbytes = 3;	378	screen.pixelbytes = 3;
379	break;	379	break;
380	case 32:	380	case 32:
381	screen.putpixel = putpixel_4byte;	381	screen.putpixel = putpixel_4byte;
382	screen.getpixel = getpixel_4byte;	382	screen.getpixel = getpixel_4byte;
383	screen.pixelbytes = 4;	383	screen.pixelbytes = 4;
384	break;	384	break;
385	}	385	}
386		386
387		387
388	screen.fbaddress = (unsigned char *) addr;	388	screen.fbaddress = (unsigned char *) addr;
389	screen.xres = xres;	389	screen.xres = xres;
390	screen.yres = yres;	390	screen.yres = yres;
391	screen.scanline = scan;	391	screen.scanline = scan;
392		392
393	/* Create first viewport */	393	/* Create first viewport */
394	viewport_create(0,0,xres,yres);	394	viewport_create(0,0,xres,yres);
395		395
396	clear_port(0);	396	clear_port(0);
397	}	397	}
398		398
399	static void cursor_hide(int vp)	399	static void cursor_hide(int vp)
400	{	400	{
401	viewport_t *vport = &viewports[vp];	401	viewport_t *vport = &viewports[vp];
402		402
403	if (vport->cursor_active && vport->cursor_shown) {	403	if (vport->cursor_active && vport->cursor_shown) {
404	invert_char(vp, vport->cur_row, vport->cur_col);	404	invert_char(vp, vport->cur_row, vport->cur_col);
405	vport->cursor_shown = 0;	405	vport->cursor_shown = 0;
406	}	406	}
407	}	407	}
408		408
409	static void cursor_print(int vp)	409	static void cursor_print(int vp)
410	{	410	{
411	viewport_t *vport = &viewports[vp];	411	viewport_t *vport = &viewports[vp];
412		412
413	/* Do not check for cursor_shown */	413	/* Do not check for cursor_shown */
414	if (vport->cursor_active) {	414	if (vport->cursor_active) {
415	invert_char(vp, vport->cur_row, vport->cur_col);	415	invert_char(vp, vport->cur_row, vport->cur_col);
416	vport->cursor_shown = 1;	416	vport->cursor_shown = 1;
417	}	417	}
418	}	418	}
419		419
420	static void cursor_blink(int vp)	420	static void cursor_blink(int vp)
421	{	421	{
422	viewport_t *vport = &viewports[vp];	422	viewport_t *vport = &viewports[vp];
423		423
424	if (vport->cursor_shown)	424	if (vport->cursor_shown)
425	cursor_hide(vp);	425	cursor_hide(vp);
426	else	426	else
427	cursor_print(vp);	427	cursor_print(vp);
428	}	428	}
429		429
430	/** Draw character at given position relative to viewport	430	/** Draw character at given position relative to viewport
431	*	431	*
432	* @param vp Viewport identification	432	* @param vp Viewport identification
433	* @param c Character to print	433	* @param c Character to print
434	* @param row Screen position relative to viewport	434	* @param row Screen position relative to viewport
435	* @param col Screen position relative to viewport	435	* @param col Screen position relative to viewport
436	*/	436	*/
437	static void draw_char(int vp, char c, unsigned int row, unsigned int col)	437	static void draw_char(int vp, char c, unsigned int row, unsigned int col)
438	{	438	{
439	viewport_t *vport = &viewports[vp];	439	viewport_t *vport = &viewports[vp];
440		440
441	/* Optimize - do not hide cursor if we are going to overwrite it */	441	/* Optimize - do not hide cursor if we are going to overwrite it */
442	if (vport->cursor_active && vport->cursor_shown &&	442	if (vport->cursor_active && vport->cursor_shown &&
443	(vport->cur_col != col \|\| vport->cur_row != row))	443	(vport->cur_col != col \|\| vport->cur_row != row))
444	invert_char(vp, vport->cur_row, vport->cur_col);	444	invert_char(vp, vport->cur_row, vport->cur_col);
445		445
446	draw_glyph(vp, c, col * COL_WIDTH, row * FONT_SCANLINES);	446	draw_glyph(vp, c, col * COL_WIDTH, row * FONT_SCANLINES);
447		447
448	vport->cur_col = col;	448	vport->cur_col = col;
449	vport->cur_row = row;	449	vport->cur_row = row;
450		450
451	vport->cur_col++;	451	vport->cur_col++;
452	if (vport->cur_col>= vport->cols) {	452	if (vport->cur_col>= vport->cols) {
453	vport->cur_col = 0;	453	vport->cur_col = 0;
454	vport->cur_row++;	454	vport->cur_row++;
455	if (vport->cur_row >= vport->rows)	455	if (vport->cur_row >= vport->rows)
456	vport->cur_row--;	456	vport->cur_row--;
457	}	457	}
458	cursor_print(vp);	458	cursor_print(vp);
459	}	459	}
460		460
461	/** Function for handling connections to FB	461	/** Function for handling connections to FB
462	*	462	*
463	*/	463	*/
464	static void fb_client_connection(ipc_callid_t iid, ipc_call_t *icall)	464	static void fb_client_connection(ipc_callid_t iid, ipc_call_t *icall)
465	{	465	{
466	ipc_callid_t callid;	466	ipc_callid_t callid;
467	ipc_call_t call;	467	ipc_call_t call;
468	int retval;	468	int retval;
469	int i;	469	int i;
470	unsigned int row,col;	470	unsigned int row,col;
471	char c;	471	char c;
472		472
473	int vp = 0;	473	int vp = 0;
474	viewport_t *vport = &viewports[0];	474	viewport_t *vport = &viewports[0];
475		475
476	if (client_connected) {	476	if (client_connected) {
477	ipc_answer_fast(iid, ELIMIT, 0,0);	477	ipc_answer_fast(iid, ELIMIT, 0,0);
478	return;	478	return;
479	}	479	}
480	client_connected = 1;	480	client_connected = 1;
481	ipc_answer_fast(iid, 0, 0, 0); /* Accept connection */	481	ipc_answer_fast(iid, 0, 0, 0); /* Accept connection */
482		482
483	while (1) {	483	while (1) {
484	callid = async_get_call_timeout(&call,250000);	484	callid = async_get_call_timeout(&call,250000);
485	if (!callid) {	485	if (!callid) {
486	cursor_blink(vp);	486	cursor_blink(vp);
487	continue;	487	continue;
488	}	488	}
489	switch (IPC_GET_METHOD(call)) {	489	switch (IPC_GET_METHOD(call)) {
490	case IPC_M_PHONE_HUNGUP:	490	case IPC_M_PHONE_HUNGUP:
491	client_connected = 0;	491	client_connected = 0;
492	/* cleanup other viewports */	492	/* cleanup other viewports */
493	for (i=1; i < MAX_VIEWPORTS; i++)	493	for (i=1; i < MAX_VIEWPORTS; i++)
494	vport->initialized = 0;	494	vport->initialized = 0;
495	ipc_answer_fast(callid,0,0,0);	495	ipc_answer_fast(callid,0,0,0);
496	return; /* Exit thread */	496	return; /* Exit thread */
497	case FB_PUTCHAR:	497	case FB_PUTCHAR:
498	c = IPC_GET_ARG1(call);	498	c = IPC_GET_ARG1(call);
499	row = IPC_GET_ARG2(call);	499	row = IPC_GET_ARG2(call);
500	col = IPC_GET_ARG3(call);	500	col = IPC_GET_ARG3(call);

Subversion Repositories HelenOS-historic

(root)/uspace/trunk/fb/fb.c – Rev 1500 → 1501