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;
} 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(__address 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);
}
 
/** 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];
 
    if (vport->cursor_active && (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--;
    }
    if (vport->cursor_active)
        invert_char(vp, vport->cur_row, vport->cur_col);
}
 
/** 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(&call);
        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);
            if (vport->cursor_active)
                invert_char(vp, vport->cur_row, vport->cur_col);
            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;
            if (viewports[vp].cursor_active) {
                invert_char(vp, vport->cur_row, vport->cur_col);
                invert_char(vp, row, col);
            }
            vport->cur_col = col;
            vport->cur_row = row;
            break;
        case FB_CURSOR_VISIBILITY:
            i = IPC_GET_ARG1(call);
            retval = 0;
            if ((i && vport->cursor_active) || (!i && !vport->cursor_active))
                break;
 
            vport->cursor_active = i;
            invert_char(vp, vport->cur_row, vport->cur_col);
            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;
            }
            if (vport->cursor_active)
                invert_char(vp, vport->cur_row, vport->cur_col);
            scroll_port(vp, i);
            if (vport->cursor_active)
                invert_char(vp, vport->cur_row, vport->cur_col);
            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;
            }
            vp = i;
            vport = &viewports[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)
{
    __address fb_ph_addr;
    unsigned int fb_width;
    unsigned int fb_height;
    unsigned int fb_bpp;
    unsigned int fb_scanline;
    __address fb_addr;
 
    async_set_client_connection(fb_client_connection);
 
    fb_ph_addr=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");
 
    fb_addr=ALIGN_UP(((__address)set_maxheapsize(USER_ADDRESS_SPACE_SIZE_ARCH>>1)),PAGE_SIZE);
   
    map_physmem((void *)((__address)fb_ph_addr),(void *)fb_addr,
            (fb_scanline*fb_height+PAGE_SIZE-1)>>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 1493	Rev 1498
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	} viewport_t;	79	} viewport_t;
80		80
81	#define MAX_VIEWPORTS 128	81	#define MAX_VIEWPORTS 128
82	static viewport_t viewports[128];	82	static viewport_t viewports[128];
83		83
84	/* Allow only 1 connection */	84	/* Allow only 1 connection */
85	static int client_connected = 0;	85	static int client_connected = 0;
86		86
87	#define RED(x, bits) ((x >> (16 + 8 - bits)) & ((1 << bits) - 1))	87	#define RED(x, bits) ((x >> (16 + 8 - bits)) & ((1 << bits) - 1))
88	#define GREEN(x, bits) ((x >> (8 + 8 - bits)) & ((1 << bits) - 1))	88	#define GREEN(x, bits) ((x >> (8 + 8 - bits)) & ((1 << bits) - 1))
89	#define BLUE(x, bits) ((x >> (8 - bits)) & ((1 << bits) - 1))	89	#define BLUE(x, bits) ((x >> (8 - bits)) & ((1 << bits) - 1))
90		90
91	#define COL_WIDTH 8	91	#define COL_WIDTH 8
92	#define ROW_BYTES (screen.scanline * FONT_SCANLINES)	92	#define ROW_BYTES (screen.scanline * FONT_SCANLINES)
93		93
94	#define POINTPOS(x, y) ((y) * screen.scanline + (x) * screen.pixelbytes)	94	#define POINTPOS(x, y) ((y) * screen.scanline + (x) * screen.pixelbytes)
95		95
96	/** Put pixel - 24-bit depth, 1 free byte */	96	/** Put pixel - 24-bit depth, 1 free byte */
97	static void putpixel_4byte(unsigned int x, unsigned int y, int color)	97	static void putpixel_4byte(unsigned int x, unsigned int y, int color)
98	{	98	{
99	((__u32 )(screen.fbaddress + POINTPOS(x, y))) = color;	99	((__u32 )(screen.fbaddress + POINTPOS(x, y))) = color;
100	}	100	}
101		101
102	/** Return pixel color - 24-bit depth, 1 free byte */	102	/** Return pixel color - 24-bit depth, 1 free byte */
103	static int getpixel_4byte(unsigned int x, unsigned int y)	103	static int getpixel_4byte(unsigned int x, unsigned int y)
104	{	104	{
105	return ((__u32 )(screen.fbaddress + POINTPOS(x, y))) & 0xffffff;	105	return ((__u32 )(screen.fbaddress + POINTPOS(x, y))) & 0xffffff;
106	}	106	}
107		107
108	/** Put pixel - 24-bit depth */	108	/** Put pixel - 24-bit depth */
109	static void putpixel_3byte(unsigned int x, unsigned int y, int color)	109	static void putpixel_3byte(unsigned int x, unsigned int y, int color)
110	{	110	{
111	unsigned int startbyte = POINTPOS(x, y);	111	unsigned int startbyte = POINTPOS(x, y);
112		112
113	#if (defined(BIG_ENDIAN) \|\| defined(FB_BIG_ENDIAN))	113	#if (defined(BIG_ENDIAN) \|\| defined(FB_BIG_ENDIAN))
114	screen.fbaddress[startbyte] = RED(color, 8);	114	screen.fbaddress[startbyte] = RED(color, 8);
115	screen.fbaddress[startbyte + 1] = GREEN(color, 8);	115	screen.fbaddress[startbyte + 1] = GREEN(color, 8);
116	screen.fbaddress[startbyte + 2] = BLUE(color, 8);	116	screen.fbaddress[startbyte + 2] = BLUE(color, 8);
117	#else	117	#else
118	screen.fbaddress[startbyte + 2] = RED(color, 8);	118	screen.fbaddress[startbyte + 2] = RED(color, 8);
119	screen.fbaddress[startbyte + 1] = GREEN(color, 8);	119	screen.fbaddress[startbyte + 1] = GREEN(color, 8);
120	screen.fbaddress[startbyte + 0] = BLUE(color, 8);	120	screen.fbaddress[startbyte + 0] = BLUE(color, 8);
121	#endif	121	#endif
122		122
123	}	123	}
124		124
125	/** Return pixel color - 24-bit depth */	125	/** Return pixel color - 24-bit depth */
126	static int getpixel_3byte(unsigned int x, unsigned int y)	126	static int getpixel_3byte(unsigned int x, unsigned int y)
127	{	127	{
128	unsigned int startbyte = POINTPOS(x, y);	128	unsigned int startbyte = POINTPOS(x, y);
129		129
130		130
131		131
132	#if (defined(BIG_ENDIAN) \|\| defined(FB_BIG_ENDIAN))	132	#if (defined(BIG_ENDIAN) \|\| defined(FB_BIG_ENDIAN))
133	return screen.fbaddress[startbyte] << 16 \| screen.fbaddress[startbyte + 1] << 8 \| screen.fbaddress[startbyte + 2];	133	return screen.fbaddress[startbyte] << 16 \| screen.fbaddress[startbyte + 1] << 8 \| screen.fbaddress[startbyte + 2];
134	#else	134	#else
135	return screen.fbaddress[startbyte + 2] << 16 \| screen.fbaddress[startbyte + 1] << 8 \| screen.fbaddress[startbyte + 0];	135	return screen.fbaddress[startbyte + 2] << 16 \| screen.fbaddress[startbyte + 1] << 8 \| screen.fbaddress[startbyte + 0];
136	#endif	136	#endif
137		137
138		138
139	}	139	}
140		140
141	/** Put pixel - 16-bit depth (5:6:5) */	141	/** Put pixel - 16-bit depth (5:6:5) */
142	static void putpixel_2byte(unsigned int x, unsigned int y, int color)	142	static void putpixel_2byte(unsigned int x, unsigned int y, int color)
143	{	143	{
144	/* 5-bit, 6-bits, 5-bits */	144	/* 5-bit, 6-bits, 5-bits */
145	((__u16 )(screen.fbaddress + POINTPOS(x, y))) = RED(color, 5) << 11 \| GREEN(color, 6) << 5 \| BLUE(color, 5);	145	((__u16 )(screen.fbaddress + POINTPOS(x, y))) = RED(color, 5) << 11 \| GREEN(color, 6) << 5 \| BLUE(color, 5);
146	}	146	}
147		147
148	/** Return pixel color - 16-bit depth (5:6:5) */	148	/** Return pixel color - 16-bit depth (5:6:5) */
149	static int getpixel_2byte(unsigned int x, unsigned int y)	149	static int getpixel_2byte(unsigned int x, unsigned int y)
150	{	150	{
151	int color = ((__u16 )(screen.fbaddress + POINTPOS(x, y)));	151	int color = ((__u16 )(screen.fbaddress + POINTPOS(x, y)));
152	return (((color >> 11) & 0x1f) << (16 + 3)) \| (((color >> 5) & 0x3f) << (8 + 2)) \| ((color & 0x1f) << 3);	152	return (((color >> 11) & 0x1f) << (16 + 3)) \| (((color >> 5) & 0x3f) << (8 + 2)) \| ((color & 0x1f) << 3);
153	}	153	}
154		154
155	/** Put pixel - 8-bit depth (3:2:3) */	155	/** Put pixel - 8-bit depth (3:2:3) */
156	static void putpixel_1byte(unsigned int x, unsigned int y, int color)	156	static void putpixel_1byte(unsigned int x, unsigned int y, int color)
157	{	157	{
158	screen.fbaddress[POINTPOS(x, y)] = RED(color, 3) << 5 \| GREEN(color, 2) << 3 \| BLUE(color, 3);	158	screen.fbaddress[POINTPOS(x, y)] = RED(color, 3) << 5 \| GREEN(color, 2) << 3 \| BLUE(color, 3);
159	}	159	}
160		160
161	/** Return pixel color - 8-bit depth (3:2:3) */	161	/** Return pixel color - 8-bit depth (3:2:3) */
162	static int getpixel_1byte(unsigned int x, unsigned int y)	162	static int getpixel_1byte(unsigned int x, unsigned int y)
163	{	163	{
164	int color = screen.fbaddress[POINTPOS(x, y)];	164	int color = screen.fbaddress[POINTPOS(x, y)];
165	return (((color >> 5) & 0x7) << (16 + 5)) \| (((color >> 3) & 0x3) << (8 + 6)) \| ((color & 0x7) << 5);	165	return (((color >> 5) & 0x7) << (16 + 5)) \| (((color >> 3) & 0x3) << (8 + 6)) \| ((color & 0x7) << 5);
166	}	166	}
167		167
-		168	/** Put pixel into viewport
-		169	*
-		170	* @param vp Viewport identification
-		171	* @param x X coord relative to viewport
-		172	* @param y Y coord relative to viewport
-		173	* @param color RGB color
-		174	*/
168	static void putpixel(int vp, unsigned int x, unsigned int y, int color)	175	static void putpixel(int vp, unsigned int x, unsigned int y, int color)
169	{	176	{
170	screen.putpixel(viewports[vp].x + x, viewports[vp].y + y, color);	177	screen.putpixel(viewports[vp].x + x, viewports[vp].y + y, color);
171	}	178	}
-		179	/** Get pixel from viewport */
172	static int getpixel(int vp, unsigned int x, unsigned int y)	180	static int getpixel(int vp, unsigned int x, unsigned int y)
173	{	181	{
174	return screen.getpixel(viewports[vp].x + x, viewports[vp].y + y);	182	return screen.getpixel(viewports[vp].x + x, viewports[vp].y + y);
175	}	183	}
176		184
177	/** Fill line with color BGCOLOR */	185	/** Fill line with color BGCOLOR */
178	static void clear_line(int vp, unsigned int y)	186	static void clear_line(int vp, unsigned int y)
179	{	187	{
180	unsigned int x;	188	unsigned int x;
181	for (x = 0; x < viewports[vp].width; x++)	189	for (x = 0; x < viewports[vp].width; x++)
182	putpixel(vp, x, y, viewports[vp].bgcolor);	190	putpixel(vp, x, y, viewports[vp].bgcolor);
183	}	191	}
184		192
185	/** Fill viewport with background color */	193	/** Fill viewport with background color */
186	static void clear_port(int vp)	194	static void clear_port(int vp)
187	{	195	{
188	unsigned int y;	196	unsigned int y;
189		197
190	clear_line(vp, 0);	198	clear_line(vp, 0);
191	for (y = viewports[vp].y+1; y < viewports[vp].y+viewports[vp].height; y++) {	199	for (y = viewports[vp].y+1; y < viewports[vp].y+viewports[vp].height; y++) {
192	memcpy(&screen.fbaddress[POINTPOS(viewports[vp].x,y)],	200	memcpy(&screen.fbaddress[POINTPOS(viewports[vp].x,y)],
193	&screen.fbaddress[POINTPOS(viewports[vp].x,viewports[vp].y)],	201	&screen.fbaddress[POINTPOS(viewports[vp].x,viewports[vp].y)],
194	screen.pixelbytes * viewports[vp].width);	202	screen.pixelbytes * viewports[vp].width);
195	}	203	}
196	}	204	}
197		205
198	/** Scroll port up/down	206	/** Scroll port up/down
199	*	207	*
200	* @param vp Viewport to scroll	208	* @param vp Viewport to scroll
201	* @param rows Positive number - scroll up, negative - scroll down	209	* @param rows Positive number - scroll up, negative - scroll down
202	*/	210	*/
203	static void scroll_port(int vp, int rows)	211	static void scroll_port(int vp, int rows)
204	{	212	{
205	int y;	213	int y;
206	int startline;	214	int startline;
207	int endline;	215	int endline;
208		216
209	if (rows > 0) {	217	if (rows > 0) {
210	for (y=viewports[vp].y; y < viewports[vp].y+viewports[vp].height - rows*FONT_SCANLINES; y++)	218	for (y=viewports[vp].y; y < viewports[vp].y+viewports[vp].height - rows*FONT_SCANLINES; y++)
211	memcpy(&screen.fbaddress[POINTPOS(viewports[vp].x,y)],	219	memcpy(&screen.fbaddress[POINTPOS(viewports[vp].x,y)],
212	&screen.fbaddress[POINTPOS(viewports[vp].x,y + rows*FONT_SCANLINES)],	220	&screen.fbaddress[POINTPOS(viewports[vp].x,y + rows*FONT_SCANLINES)],
213	screen.pixelbytes * viewports[vp].width);	221	screen.pixelbytes * viewports[vp].width);
214	/* Clear last row */	222	/* Clear last row */
215	startline = viewports[vp].y+FONT_SCANLINES*(viewports[vp].rows-1);	223	startline = viewports[vp].y+FONT_SCANLINES*(viewports[vp].rows-1);
216	endline = viewports[vp].y + viewports[vp].height;	224	endline = viewports[vp].y + viewports[vp].height;
217	clear_line(vp, startline);	225	clear_line(vp, startline);
218	for (y=startline+1;y < endline; y++)	226	for (y=startline+1;y < endline; y++)
219	memcpy(&screen.fbaddress[POINTPOS(viewports[vp].x,y)],	227	memcpy(&screen.fbaddress[POINTPOS(viewports[vp].x,y)],
220	&screen.fbaddress[POINTPOS(viewports[vp].x,startline)],	228	&screen.fbaddress[POINTPOS(viewports[vp].x,startline)],
221	screen.pixelbytes * viewports[vp].width);	229	screen.pixelbytes * viewports[vp].width);
222		230
223	} else if (rows < 0) {	231	} else if (rows < 0) {
224	rows = -rows;	232	rows = -rows;
225	for (y=viewports[vp].y + viewports[vp].height-1; y >= viewports[vp].y + rows*FONT_SCANLINES; y--)	233	for (y=viewports[vp].y + viewports[vp].height-1; y >= viewports[vp].y + rows*FONT_SCANLINES; y--)
226	memcpy(&screen.fbaddress[POINTPOS(viewports[vp].x,y)],	234	memcpy(&screen.fbaddress[POINTPOS(viewports[vp].x,y)],
227	&screen.fbaddress[POINTPOS(viewports[vp].x,y - rows*FONT_SCANLINES)],	235	&screen.fbaddress[POINTPOS(viewports[vp].x,y - rows*FONT_SCANLINES)],
228	screen.pixelbytes * viewports[vp].width);	236	screen.pixelbytes * viewports[vp].width);
229	/* Clear first row */	237	/* Clear first row */
230	clear_line(0, viewports[vp].bgcolor);	238	clear_line(0, viewports[vp].bgcolor);
231	for (y=1;y < rows*FONT_SCANLINES; y++)	239	for (y=1;y < rows*FONT_SCANLINES; y++)
232	memcpy(&screen.fbaddress[POINTPOS(viewports[vp].x,viewports[vp].y+y)],	240	memcpy(&screen.fbaddress[POINTPOS(viewports[vp].x,viewports[vp].y+y)],
233	&screen.fbaddress[POINTPOS(viewports[vp].x,viewports[vp].y)],	241	&screen.fbaddress[POINTPOS(viewports[vp].x,viewports[vp].y)],
234	screen.pixelbytes * viewports[vp].width);	242	screen.pixelbytes * viewports[vp].width);
235	}	243	}
236	}	244	}
237		245
238	static void invert_pixel(int vp,unsigned int x, unsigned int y)	246	static void invert_pixel(int vp,unsigned int x, unsigned int y)
239	{	247	{
240	putpixel(vp, x, y, ~getpixel(vp, x, y));	248	putpixel(vp, x, y, ~getpixel(vp, x, y));
241	}	249	}
242		250
243		251
244	/** Draw one line of glyph at a given position */	252	/** Draw one line of glyph at a given position */
245	static void draw_glyph_line(int vp,unsigned int glline, unsigned int x, unsigned int y)	253	static void draw_glyph_line(int vp,unsigned int glline, unsigned int x, unsigned int y)
246	{	254	{
247	unsigned int i;	255	unsigned int i;
248		256
249	for (i = 0; i < 8; i++)	257	for (i = 0; i < 8; i++)
250	if (glline & (1 << (7 - i))) {	258	if (glline & (1 << (7 - i))) {
251	putpixel(vp, x + i, y, viewports[vp].fgcolor);	259	putpixel(vp, x + i, y, viewports[vp].fgcolor);
252	} else	260	} else
253	putpixel(vp, x + i, y, viewports[vp].bgcolor);	261	putpixel(vp, x + i, y, viewports[vp].bgcolor);
254	}	262	}
255		263
256	/***************************************************************/	264	/***************************************************************/
257	/* Character-console functions */	265	/* Character-console functions */
258		266
259	/** Draw character at given position */	267	/** Draw character at given position */
260	static void draw_glyph(int vp,__u8 glyph, unsigned int row, unsigned int col)	268	static void draw_glyph(int vp,__u8 glyph, unsigned int sx, unsigned int sy)
261	{	269	{
262	unsigned int y;	270	unsigned int y;
263		271
264	for (y = 0; y < FONT_SCANLINES; y++)	272	for (y = 0; y < FONT_SCANLINES; y++)
265	draw_glyph_line(vp ,fb_font[glyph * FONT_SCANLINES + y], col * COL_WIDTH, row * FONT_SCANLINES + y);	273	draw_glyph_line(vp ,fb_font[glyph * FONT_SCANLINES + y], sx, sy + y);
266	}	274	}
267		275
268	/** Invert character at given position */	276	/** Invert character at given position */
269	static void invert_char(int vp,unsigned int row, unsigned int col)	277	static void invert_char(int vp,unsigned int row, unsigned int col)
270	{	278	{
271	unsigned int x;	279	unsigned int x;
272	unsigned int y;	280	unsigned int y;
273		281
274	for (x = 0; x < COL_WIDTH; x++)	282	for (x = 0; x < COL_WIDTH; x++)
275	for (y = 0; y < FONT_SCANLINES; y++)	283	for (y = 0; y < FONT_SCANLINES; y++)
276	invert_pixel(vp, col * COL_WIDTH + x, row * FONT_SCANLINES + y);	284	invert_pixel(vp, col * COL_WIDTH + x, row * FONT_SCANLINES + y);
277	}	285	}
278		286
279	static void draw_logo(int vp,unsigned int startx, unsigned int starty)	287	static void draw_logo(int vp,unsigned int startx, unsigned int starty)
280	{	288	{
281	unsigned int x;	289	unsigned int x;
282	unsigned int y;	290	unsigned int y;
283	unsigned int byte;	291	unsigned int byte;
284	unsigned int rowbytes;	292	unsigned int rowbytes;
285		293
286	rowbytes = (helenos_width - 1) / 8 + 1;	294	rowbytes = (helenos_width - 1) / 8 + 1;
287		295
288	for (y = 0; y < helenos_height; y++)	296	for (y = 0; y < helenos_height; y++)
289	for (x = 0; x < helenos_width; x++) {	297	for (x = 0; x < helenos_width; x++) {
290	byte = helenos_bits[rowbytes * y + x / 8];	298	byte = helenos_bits[rowbytes * y + x / 8];
291	byte >>= x % 8;	299	byte >>= x % 8;
292	if (byte & 1)	300	if (byte & 1)
293	putpixel(vp ,startx + x, starty + y, viewports[vp].fgcolor);	301	putpixel(vp ,startx + x, starty + y, viewports[vp].fgcolor);
294	}	302	}
295	}	303	}
296		304
297	/***************************************************************/	305	/***************************************************************/
298	/* Stdout specific functions */	306	/* Stdout specific functions */
299		307
300		308
301	/** Create new viewport	309	/** Create new viewport
302	*	310	*
303	* @return New viewport number	311	* @return New viewport number
304	*/	312	*/
305	static int viewport_create(unsigned int x, unsigned int y,unsigned int width,	313	static int viewport_create(unsigned int x, unsigned int y,unsigned int width,
306	unsigned int height)	314	unsigned int height)
307	{	315	{
308	int i;	316	int i;
309		317
310	for (i=0; i < MAX_VIEWPORTS; i++) {	318	for (i=0; i < MAX_VIEWPORTS; i++) {
311	if (!viewports[i].initialized)	319	if (!viewports[i].initialized)
312	break;	320	break;
313	}	321	}
314	if (i == MAX_VIEWPORTS)	322	if (i == MAX_VIEWPORTS)
315	return ELIMIT;	323	return ELIMIT;
316		324
317	if (width ==0 \|\| height == 0 \|\|	325	if (width ==0 \|\| height == 0 \|\|
318	x+width > screen.xres \|\| y+height > screen.yres)	326	x+width > screen.xres \|\| y+height > screen.yres)
319	return EINVAL;	327	return EINVAL;
320	if (width < FONT_SCANLINES \|\| height < COL_WIDTH)	328	if (width < FONT_SCANLINES \|\| height < COL_WIDTH)
321	return EINVAL;	329	return EINVAL;
322		330
323	viewports[i].x = x;	331	viewports[i].x = x;
324	viewports[i].y = y;	332	viewports[i].y = y;
325	viewports[i].width = width;	333	viewports[i].width = width;
326	viewports[i].height = height;	334	viewports[i].height = height;
327		335
328	viewports[i].rows = height / FONT_SCANLINES;	336	viewports[i].rows = height / FONT_SCANLINES;
329	viewports[i].cols = width / COL_WIDTH;	337	viewports[i].cols = width / COL_WIDTH;
330		338
331	viewports[i].bgcolor = DEFAULT_BGCOLOR;	339	viewports[i].bgcolor = DEFAULT_BGCOLOR;
332	viewports[i].fgcolor = DEFAULT_FGCOLOR;	340	viewports[i].fgcolor = DEFAULT_FGCOLOR;
333		341
334	viewports[i].cur_col = 0;	342	viewports[i].cur_col = 0;
335	viewports[i].cur_row = 0;	343	viewports[i].cur_row = 0;
336	viewports[i].cursor_active = 0;	344	viewports[i].cursor_active = 0;
337		345
338	viewports[i].initialized = 1;	346	viewports[i].initialized = 1;
339		347
340	return i;	348	return i;
341	}	349	}
342		350
343		351
344	/** Initialize framebuffer as a chardev output device	352	/** Initialize framebuffer as a chardev output device
345	*	353	*
346	* @param addr Address of theframebuffer	354	* @param addr Address of theframebuffer
347	* @param x Screen width in pixels	355	* @param x Screen width in pixels
348	* @param y Screen height in pixels	356	* @param y Screen height in pixels
349	* @param bpp Bits per pixel (8, 16, 24, 32)	357	* @param bpp Bits per pixel (8, 16, 24, 32)
350	* @param scan Bytes per one scanline	358	* @param scan Bytes per one scanline
351	*	359	*
352	*/	360	*/
353	static void screen_init(__address addr, unsigned int xres, unsigned int yres, unsigned int bpp, unsigned int scan)	361	static void screen_init(__address addr, unsigned int xres, unsigned int yres, unsigned int bpp, unsigned int scan)
354	{	362	{
355	switch (bpp) {	363	switch (bpp) {
356	case 8:	364	case 8:
357	screen.putpixel = putpixel_1byte;	365	screen.putpixel = putpixel_1byte;
358	screen.getpixel = getpixel_1byte;	366	screen.getpixel = getpixel_1byte;
359	screen.pixelbytes = 1;	367	screen.pixelbytes = 1;
360	break;	368	break;
361	case 16:	369	case 16:
362	screen.putpixel = putpixel_2byte;	370	screen.putpixel = putpixel_2byte;
363	screen.getpixel = getpixel_2byte;	371	screen.getpixel = getpixel_2byte;
364	screen.pixelbytes = 2;	372	screen.pixelbytes = 2;
365	break;	373	break;
366	case 24:	374	case 24:
367	screen.putpixel = putpixel_3byte;	375	screen.putpixel = putpixel_3byte;
368	screen.getpixel = getpixel_3byte;	376	screen.getpixel = getpixel_3byte;
369	screen.pixelbytes = 3;	377	screen.pixelbytes = 3;
370	break;	378	break;
371	case 32:	379	case 32:
372	screen.putpixel = putpixel_4byte;	380	screen.putpixel = putpixel_4byte;
373	screen.getpixel = getpixel_4byte;	381	screen.getpixel = getpixel_4byte;
374	screen.pixelbytes = 4;	382	screen.pixelbytes = 4;
375	break;	383	break;
376	}	384	}
377		385
378		386
379	screen.fbaddress = (unsigned char *) addr;	387	screen.fbaddress = (unsigned char *) addr;
380	screen.xres = xres;	388	screen.xres = xres;
381	screen.yres = yres;	389	screen.yres = yres;
382	screen.scanline = scan;	390	screen.scanline = scan;
383		391
384	/* Create first viewport */	392	/* Create first viewport */
385	viewport_create(0,0,xres,yres);	393	viewport_create(0,0,xres,yres);
386		394
387	clear_port(0);	395	clear_port(0);
388	}	396	}
389		397
-		398	/** Draw character at given position relative to viewport
-		399	*
-		400	* @param vp Viewport identification
-		401	* @param c Character to print
-		402	* @param row Screen position relative to viewport
-		403	* @param col Screen position relative to viewport
-		404	*/
390	static void draw_char(int vp, char c, unsigned int row, unsigned int col)	405	static void draw_char(int vp, char c, unsigned int row, unsigned int col)
391	{	406	{
392	viewport_t *vport = &viewports[vp];	407	viewport_t *vport = &viewports[vp];
393		408
394	if (vport->cursor_active && (vport->cur_col != col \|\| vport->cur_row != row))	409	if (vport->cursor_active && (vport->cur_col != col \|\| vport->cur_row != row))
395	invert_char(vp, vport->cur_row, vport->cur_col);	410	invert_char(vp, vport->cur_row, vport->cur_col);
396		411
397	draw_glyph(vp, c, row, col);	412	draw_glyph(vp, c, col * COL_WIDTH, row * FONT_SCANLINES);
398		413
399	vport->cur_col = col;	414	vport->cur_col = col;
400	vport->cur_row = row;	415	vport->cur_row = row;
401		416
402	vport->cur_col++;	417	vport->cur_col++;
403	if (vport->cur_col>= vport->cols) {	418	if (vport->cur_col>= vport->cols) {
404	vport->cur_col = 0;	419	vport->cur_col = 0;
405	vport->cur_row++;	420	vport->cur_row++;
406	if (vport->cur_row >= vport->rows)	421	if (vport->cur_row >= vport->rows)
407	vport->cur_row--;	422	vport->cur_row--;
408	}	423	}
409	if (vport->cursor_active)	424	if (vport->cursor_active)
410	invert_char(vp, vport->cur_row, vport->cur_col);	425	invert_char(vp, vport->cur_row, vport->cur_col);
411	}	426	}
412		427
-		428	/** Function for handling connections to FB
-		429	*
-		430	*/
413	static void fb_client_connection(ipc_callid_t iid, ipc_call_t *icall)	431	static void fb_client_connection(ipc_callid_t iid, ipc_call_t *icall)
414	{	432	{
415	ipc_callid_t callid;	433	ipc_callid_t callid;
416	ipc_call_t call;	434	ipc_call_t call;
417	int retval;	435	int retval;
418	int i;	436	int i;
419	unsigned int row,col;	437	unsigned int row,col;
420	char c;	438	char c;
421		439
422	int vp = 0;	440	int vp = 0;
423	viewport_t *vport = &viewports[0];	441	viewport_t *vport = &viewports[0];
424		442
425	if (client_connected) {	443	if (client_connected) {
426	ipc_answer_fast(iid, ELIMIT, 0,0);	444	ipc_answer_fast(iid, ELIMIT, 0,0);
427	return;	445	return;
428	}	446	}
429	client_connected = 1;	447	client_connected = 1;
430	ipc_answer_fast(iid, 0, 0, 0); /* Accept connection */	448	ipc_answer_fast(iid, 0, 0, 0); /* Accept connection */
431		449
432	while (1) {	450	while (1) {
433	callid = async_get_call(&call);	451	callid = async_get_call(&call);
434	switch (IPC_GET_METHOD(call)) {	452	switch (IPC_GET_METHOD(call)) {
435	case IPC_M_PHONE_HUNGUP:	453	case IPC_M_PHONE_HUNGUP:
436	client_connected = 0;	454	client_connected = 0;
437	/* cleanup other viewports */	455	/* cleanup other viewports */
438	for (i=1; i < MAX_VIEWPORTS; i++)	456	for (i=1; i < MAX_VIEWPORTS; i++)
439	vport->initialized = 0;	457	vport->initialized = 0;
440	ipc_answer_fast(callid,0,0,0);	458	ipc_answer_fast(callid,0,0,0);
441	return; /* Exit thread */	459	return; /* Exit thread */
442	case FB_PUTCHAR:	460	case FB_PUTCHAR:
443	c = IPC_GET_ARG1(call);	461	c = IPC_GET_ARG1(call);
444	row = IPC_GET_ARG2(call);	462	row = IPC_GET_ARG2(call);
445	col = IPC_GET_ARG3(call);	463	col = IPC_GET_ARG3(call);
446	if (row >= vport->rows \|\| col >= vport->cols) {	464	if (row >= vport->rows \|\| col >= vport->cols) {
447	retval = EINVAL;	465	retval = EINVAL;
448	break;	466	break;
449	}	467	}
450	ipc_answer_fast(callid,0,0,0);	468	ipc_answer_fast(callid,0,0,0);
451		469
452	draw_char(vp, c, row, col);	470	draw_char(vp, c, row, col);
453	continue; /* msg already answered */	471	continue; /* msg already answered */
454	case FB_CLEAR:	472	case FB_CLEAR:
455	clear_port(vp);	473	clear_port(vp);
456	if (vport->cursor_active)	474	if (vport->cursor_active)
457	invert_char(vp, vport->cur_row, vport->cur_col);	475	invert_char(vp, vport->cur_row, vport->cur_col);
458	retval = 0;	476	retval = 0;
459	break;	477	break;
460	case FB_CURSOR_GOTO:	478	case FB_CURSOR_GOTO:
461	row = IPC_GET_ARG1(call);	479	row = IPC_GET_ARG1(call);
462	col = IPC_GET_ARG2(call);	480	col = IPC_GET_ARG2(call);
463	if (row >= vport->rows \|\| col >= vport->cols) {	481	if (row >= vport->rows \|\| col >= vport->cols) {
464	retval = EINVAL;	482	retval = EINVAL;
465	break;	483	break;
466	}	484	}
467	retval = 0;	485	retval = 0;
468	if (viewports[vp].cursor_active) {	486	if (viewports[vp].cursor_active) {
469	invert_char(vp, vport->cur_row, vport->cur_col);	487	invert_char(vp, vport->cur_row, vport->cur_col);
470	invert_char(vp, row, col);	488	invert_char(vp, row, col);
471	}	489	}
472	vport->cur_col = col;	490	vport->cur_col = col;
473	vport->cur_row = row;	491	vport->cur_row = row;
474	break;	492	break;
475	case FB_CURSOR_VISIBILITY:	493	case FB_CURSOR_VISIBILITY:
476	i = IPC_GET_ARG1(call);	494	i = IPC_GET_ARG1(call);
477	retval = 0;	495	retval = 0;
478	if ((i && vport->cursor_active) \|\| (!i && !vport->cursor_active))	496	if ((i && vport->cursor_active) \|\| (!i && !vport->cursor_active))
479	break;	497	break;
480		498
481	vport->cursor_active = i;	499	vport->cursor_active = i;
482	invert_char(vp, vport->cur_row, vport->cur_col);	500	invert_char(vp, vport->cur_row, vport->cur_col);

Subversion Repositories HelenOS-historic

(root)/uspace/trunk/fb/fb.c – Rev 1493 → 1498