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"
#include "main.h"
#include "../console/screenbuffer.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 */
    style_t style;
    /* 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].style.bg_color);
}
 
/** 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].style.bg_color);
        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));
}
 
 
 
 
 
 
 
 
 
 
 
 
 
 
/***************************************************************/
/* Character-console functions */
 
/** Draw character at given position */
static void draw_glyph(int vp,__u8 glyph, unsigned int sx, unsigned int sy, style_t style)
{
    int i;
    unsigned int y;
    unsigned int glline;
 
    for (y = 0; y < FONT_SCANLINES; y++) {
        glline = fb_font[glyph * FONT_SCANLINES + y];
        for (i = 0; i < 8; i++) {
            if (glline & (1 << (7 - i)))
                putpixel(vp, sx + i, sy + y, style.fg_color);
            else
                putpixel(vp, sx + i, sy + y, style.bg_color);
        }
    }
}
 
/** 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].style.fg_color);
        }
}
 
/***************************************************************/
/* 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].style.bg_color = DEFAULT_BGCOLOR;
    viewports[i].style.fg_color = 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, style_t style)
{
    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, style);
 
    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);
}
 
static void draw_text_data(int vp, keyfield_t *data)
{
    viewport_t *vport = &viewports[vp];
    int i;
    char c;
 
    clear_port(vp);
    for (i=0; i < vport->cols * vport->rows; i++) {
        if (data[i].character == ' ' && style_same(data[i].style,vport->style))
            continue;
        draw_char(vp, data[i].character, i/vport->rows, i % vport->cols,
              data[i].style);
    }
    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;
    keyfield_t *interbuffer = NULL;
    size_t intersize = 0;
 
    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 IPC_M_AS_AREA_SEND:
            /* We accept one area for data interchange */
            intersize = IPC_GET_ARG2(call);
            receive_comm_area(callid,&call,(void **)&interbuffer,
                      sizeof(*interbuffer)*viewports[0].cols*viewports[0].rows);
            continue;
 
        case FB_DRAW_TEXT_DATA:
            if (!interbuffer) {
                retval = EINVAL;
                break;
            }
            if (intersize < vport->cols*vport->rows*sizeof(*interbuffer)) {
                retval = EINVAL;
                break;
            }
            draw_text_data(vp, interbuffer);
            retval = 0;
            break;
        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, vport->style);
            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->style.fg_color = IPC_GET_ARG1(call);
            vport->style.bg_color = 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 1505	Rev 1509
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		43
44	#include "font-8x16.h"	44	#include "font-8x16.h"
45	#include "helenos.xbm"	45	#include "helenos.xbm"
46	#include "fb.h"	46	#include "fb.h"
47	#include "main.h"	47	#include "main.h"
48	#include "../console/screenbuffer.h"	48	#include "../console/screenbuffer.h"
49		49
50	#define DEFAULT_BGCOLOR 0x000080	50	#define DEFAULT_BGCOLOR 0x000080
51	#define DEFAULT_FGCOLOR 0xffff00	51	#define DEFAULT_FGCOLOR 0xffff00
52		52
53	/***************************************************************/	53	/***************************************************************/
54	/* Pixel specific fuctions */	54	/* Pixel specific fuctions */
55		55
56	typedef void (*putpixel_fn_t)(unsigned int x, unsigned int y, int color);	56	typedef void (*putpixel_fn_t)(unsigned int x, unsigned int y, int color);
57	typedef int (*getpixel_fn_t)(unsigned int x, unsigned int y);	57	typedef int (*getpixel_fn_t)(unsigned int x, unsigned int y);
58		58
59	struct {	59	struct {
60	__u8 *fbaddress ;	60	__u8 *fbaddress ;
61		61
62	unsigned int xres ;	62	unsigned int xres ;
63	unsigned int yres ;	63	unsigned int yres ;
64	unsigned int scanline ;	64	unsigned int scanline ;
65	unsigned int pixelbytes ;	65	unsigned int pixelbytes ;
66		66
67	putpixel_fn_t putpixel;	67	putpixel_fn_t putpixel;
68	getpixel_fn_t getpixel;	68	getpixel_fn_t getpixel;
69	} screen;	69	} screen;
70		70
71	typedef struct {	71	typedef struct {
72	int initialized;	72	int initialized;
73	unsigned int x, y;	73	unsigned int x, y;
74	unsigned int width, height;	74	unsigned int width, height;
75		75
76	/* Text support in window */	76	/* Text support in window */
77	unsigned int rows, cols;	77	unsigned int rows, cols;
78	/* Style for text printing */	78	/* Style for text printing */
79	int bgcolor, fgcolor;	79	style_t style;
80	/* Auto-cursor position */	80	/* Auto-cursor position */
81	int cursor_active, cur_col, cur_row;	81	int cursor_active, cur_col, cur_row;
82	int cursor_shown;	82	int cursor_shown;
83	} viewport_t;	83	} viewport_t;
84		84
85	#define MAX_VIEWPORTS 128	85	#define MAX_VIEWPORTS 128
86	static viewport_t viewports[128];	86	static viewport_t viewports[128];
87		87
88	/* Allow only 1 connection */	88	/* Allow only 1 connection */
89	static int client_connected = 0;	89	static int client_connected = 0;
90		90
91	#define RED(x, bits) ((x >> (16 + 8 - bits)) & ((1 << bits) - 1))	91	#define RED(x, bits) ((x >> (16 + 8 - bits)) & ((1 << bits) - 1))
92	#define GREEN(x, bits) ((x >> (8 + 8 - bits)) & ((1 << bits) - 1))	92	#define GREEN(x, bits) ((x >> (8 + 8 - bits)) & ((1 << bits) - 1))
93	#define BLUE(x, bits) ((x >> (8 - bits)) & ((1 << bits) - 1))	93	#define BLUE(x, bits) ((x >> (8 - bits)) & ((1 << bits) - 1))
94		94
95	#define COL_WIDTH 8	95	#define COL_WIDTH 8
96	#define ROW_BYTES (screen.scanline * FONT_SCANLINES)	96	#define ROW_BYTES (screen.scanline * FONT_SCANLINES)
97		97
98	#define POINTPOS(x, y) ((y) * screen.scanline + (x) * screen.pixelbytes)	98	#define POINTPOS(x, y) ((y) * screen.scanline + (x) * screen.pixelbytes)
99		99
100	/** Put pixel - 24-bit depth, 1 free byte */	100	/** Put pixel - 24-bit depth, 1 free byte */
101	static void putpixel_4byte(unsigned int x, unsigned int y, int color)	101	static void putpixel_4byte(unsigned int x, unsigned int y, int color)
102	{	102	{
103	((__u32 )(screen.fbaddress + POINTPOS(x, y))) = color;	103	((__u32 )(screen.fbaddress + POINTPOS(x, y))) = color;
104	}	104	}
105		105
106	/** Return pixel color - 24-bit depth, 1 free byte */	106	/** Return pixel color - 24-bit depth, 1 free byte */
107	static int getpixel_4byte(unsigned int x, unsigned int y)	107	static int getpixel_4byte(unsigned int x, unsigned int y)
108	{	108	{
109	return ((__u32 )(screen.fbaddress + POINTPOS(x, y))) & 0xffffff;	109	return ((__u32 )(screen.fbaddress + POINTPOS(x, y))) & 0xffffff;
110	}	110	}
111		111
112	/** Put pixel - 24-bit depth */	112	/** Put pixel - 24-bit depth */
113	static void putpixel_3byte(unsigned int x, unsigned int y, int color)	113	static void putpixel_3byte(unsigned int x, unsigned int y, int color)
114	{	114	{
115	unsigned int startbyte = POINTPOS(x, y);	115	unsigned int startbyte = POINTPOS(x, y);
116		116
117	#if (defined(BIG_ENDIAN) \|\| defined(FB_BIG_ENDIAN))	117	#if (defined(BIG_ENDIAN) \|\| defined(FB_BIG_ENDIAN))
118	screen.fbaddress[startbyte] = RED(color, 8);	118	screen.fbaddress[startbyte] = RED(color, 8);
119	screen.fbaddress[startbyte + 1] = GREEN(color, 8);	119	screen.fbaddress[startbyte + 1] = GREEN(color, 8);
120	screen.fbaddress[startbyte + 2] = BLUE(color, 8);	120	screen.fbaddress[startbyte + 2] = BLUE(color, 8);
121	#else	121	#else
122	screen.fbaddress[startbyte + 2] = RED(color, 8);	122	screen.fbaddress[startbyte + 2] = RED(color, 8);
123	screen.fbaddress[startbyte + 1] = GREEN(color, 8);	123	screen.fbaddress[startbyte + 1] = GREEN(color, 8);
124	screen.fbaddress[startbyte + 0] = BLUE(color, 8);	124	screen.fbaddress[startbyte + 0] = BLUE(color, 8);
125	#endif	125	#endif
126		126
127	}	127	}
128		128
129	/** Return pixel color - 24-bit depth */	129	/** Return pixel color - 24-bit depth */
130	static int getpixel_3byte(unsigned int x, unsigned int y)	130	static int getpixel_3byte(unsigned int x, unsigned int y)
131	{	131	{
132	unsigned int startbyte = POINTPOS(x, y);	132	unsigned int startbyte = POINTPOS(x, y);
133		133
134		134
135		135
136	#if (defined(BIG_ENDIAN) \|\| defined(FB_BIG_ENDIAN))	136	#if (defined(BIG_ENDIAN) \|\| defined(FB_BIG_ENDIAN))
137	return screen.fbaddress[startbyte] << 16 \| screen.fbaddress[startbyte + 1] << 8 \| screen.fbaddress[startbyte + 2];	137	return screen.fbaddress[startbyte] << 16 \| screen.fbaddress[startbyte + 1] << 8 \| screen.fbaddress[startbyte + 2];
138	#else	138	#else
139	return screen.fbaddress[startbyte + 2] << 16 \| screen.fbaddress[startbyte + 1] << 8 \| screen.fbaddress[startbyte + 0];	139	return screen.fbaddress[startbyte + 2] << 16 \| screen.fbaddress[startbyte + 1] << 8 \| screen.fbaddress[startbyte + 0];
140	#endif	140	#endif
141		141
142		142
143	}	143	}
144		144
145	/** Put pixel - 16-bit depth (5:6:5) */	145	/** Put pixel - 16-bit depth (5:6:5) */
146	static void putpixel_2byte(unsigned int x, unsigned int y, int color)	146	static void putpixel_2byte(unsigned int x, unsigned int y, int color)
147	{	147	{
148	/* 5-bit, 6-bits, 5-bits */	148	/* 5-bit, 6-bits, 5-bits */
149	((__u16 )(screen.fbaddress + POINTPOS(x, y))) = RED(color, 5) << 11 \| GREEN(color, 6) << 5 \| BLUE(color, 5);	149	((__u16 )(screen.fbaddress + POINTPOS(x, y))) = RED(color, 5) << 11 \| GREEN(color, 6) << 5 \| BLUE(color, 5);
150	}	150	}
151		151
152	/** Return pixel color - 16-bit depth (5:6:5) */	152	/** Return pixel color - 16-bit depth (5:6:5) */
153	static int getpixel_2byte(unsigned int x, unsigned int y)	153	static int getpixel_2byte(unsigned int x, unsigned int y)
154	{	154	{
155	int color = ((__u16 )(screen.fbaddress + POINTPOS(x, y)));	155	int color = ((__u16 )(screen.fbaddress + POINTPOS(x, y)));
156	return (((color >> 11) & 0x1f) << (16 + 3)) \| (((color >> 5) & 0x3f) << (8 + 2)) \| ((color & 0x1f) << 3);	156	return (((color >> 11) & 0x1f) << (16 + 3)) \| (((color >> 5) & 0x3f) << (8 + 2)) \| ((color & 0x1f) << 3);
157	}	157	}
158		158
159	/** Put pixel - 8-bit depth (3:2:3) */	159	/** Put pixel - 8-bit depth (3:2:3) */
160	static void putpixel_1byte(unsigned int x, unsigned int y, int color)	160	static void putpixel_1byte(unsigned int x, unsigned int y, int color)
161	{	161	{
162	screen.fbaddress[POINTPOS(x, y)] = RED(color, 3) << 5 \| GREEN(color, 2) << 3 \| BLUE(color, 3);	162	screen.fbaddress[POINTPOS(x, y)] = RED(color, 3) << 5 \| GREEN(color, 2) << 3 \| BLUE(color, 3);
163	}	163	}
164		164
165	/** Return pixel color - 8-bit depth (3:2:3) */	165	/** Return pixel color - 8-bit depth (3:2:3) */
166	static int getpixel_1byte(unsigned int x, unsigned int y)	166	static int getpixel_1byte(unsigned int x, unsigned int y)
167	{	167	{
168	int color = screen.fbaddress[POINTPOS(x, y)];	168	int color = screen.fbaddress[POINTPOS(x, y)];
169	return (((color >> 5) & 0x7) << (16 + 5)) \| (((color >> 3) & 0x3) << (8 + 6)) \| ((color & 0x7) << 5);	169	return (((color >> 5) & 0x7) << (16 + 5)) \| (((color >> 3) & 0x3) << (8 + 6)) \| ((color & 0x7) << 5);
170	}	170	}
171		171
172	/** Put pixel into viewport	172	/** Put pixel into viewport
173	*	173	*
174	* @param vp Viewport identification	174	* @param vp Viewport identification
175	* @param x X coord relative to viewport	175	* @param x X coord relative to viewport
176	* @param y Y coord relative to viewport	176	* @param y Y coord relative to viewport
177	* @param color RGB color	177	* @param color RGB color
178	*/	178	*/
179	static void putpixel(int vp, unsigned int x, unsigned int y, int color)	179	static void putpixel(int vp, unsigned int x, unsigned int y, int color)
180	{	180	{
181	screen.putpixel(viewports[vp].x + x, viewports[vp].y + y, color);	181	screen.putpixel(viewports[vp].x + x, viewports[vp].y + y, color);
182	}	182	}
183	/** Get pixel from viewport */	183	/** Get pixel from viewport */
184	static int getpixel(int vp, unsigned int x, unsigned int y)	184	static int getpixel(int vp, unsigned int x, unsigned int y)
185	{	185	{
186	return screen.getpixel(viewports[vp].x + x, viewports[vp].y + y);	186	return screen.getpixel(viewports[vp].x + x, viewports[vp].y + y);
187	}	187	}
188		188
189	/** Fill line with color BGCOLOR */	189	/** Fill line with color BGCOLOR */
190	static void clear_line(int vp, unsigned int y)	190	static void clear_line(int vp, unsigned int y)
191	{	191	{
192	unsigned int x;	192	unsigned int x;
193	for (x = 0; x < viewports[vp].width; x++)	193	for (x = 0; x < viewports[vp].width; x++)
194	putpixel(vp, x, y, viewports[vp].bgcolor);	194	putpixel(vp, x, y, viewports[vp].style.bg_color);
195	}	195	}
196		196
197	/** Fill viewport with background color */	197	/** Fill viewport with background color */
198	static void clear_port(int vp)	198	static void clear_port(int vp)
199	{	199	{
200	unsigned int y;	200	unsigned int y;
201		201
202	clear_line(vp, 0);	202	clear_line(vp, 0);
203	for (y = viewports[vp].y+1; y < viewports[vp].y+viewports[vp].height; y++) {	203	for (y = viewports[vp].y+1; y < viewports[vp].y+viewports[vp].height; y++) {
204	memcpy(&screen.fbaddress[POINTPOS(viewports[vp].x,y)],	204	memcpy(&screen.fbaddress[POINTPOS(viewports[vp].x,y)],
205	&screen.fbaddress[POINTPOS(viewports[vp].x,viewports[vp].y)],	205	&screen.fbaddress[POINTPOS(viewports[vp].x,viewports[vp].y)],
206	screen.pixelbytes * viewports[vp].width);	206	screen.pixelbytes * viewports[vp].width);
207	}	207	}
208	}	208	}
209		209
210	/** Scroll port up/down	210	/** Scroll port up/down
211	*	211	*
212	* @param vp Viewport to scroll	212	* @param vp Viewport to scroll
213	* @param rows Positive number - scroll up, negative - scroll down	213	* @param rows Positive number - scroll up, negative - scroll down
214	*/	214	*/
215	static void scroll_port(int vp, int rows)	215	static void scroll_port(int vp, int rows)
216	{	216	{
217	int y;	217	int y;
218	int startline;	218	int startline;
219	int endline;	219	int endline;
220		220
221	if (rows > 0) {	221	if (rows > 0) {
222	for (y=viewports[vp].y; y < viewports[vp].y+viewports[vp].height - rows*FONT_SCANLINES; y++)	222	for (y=viewports[vp].y; y < viewports[vp].y+viewports[vp].height - rows*FONT_SCANLINES; y++)
223	memcpy(&screen.fbaddress[POINTPOS(viewports[vp].x,y)],	223	memcpy(&screen.fbaddress[POINTPOS(viewports[vp].x,y)],
224	&screen.fbaddress[POINTPOS(viewports[vp].x,y + rows*FONT_SCANLINES)],	224	&screen.fbaddress[POINTPOS(viewports[vp].x,y + rows*FONT_SCANLINES)],
225	screen.pixelbytes * viewports[vp].width);	225	screen.pixelbytes * viewports[vp].width);
226	/* Clear last row */	226	/* Clear last row */
227	startline = viewports[vp].y+FONT_SCANLINES*(viewports[vp].rows-1);	227	startline = viewports[vp].y+FONT_SCANLINES*(viewports[vp].rows-1);
228	endline = viewports[vp].y + viewports[vp].height;	228	endline = viewports[vp].y + viewports[vp].height;
229	clear_line(vp, startline);	229	clear_line(vp, startline);
230	for (y=startline+1;y < endline; y++)	230	for (y=startline+1;y < endline; y++)
231	memcpy(&screen.fbaddress[POINTPOS(viewports[vp].x,y)],	231	memcpy(&screen.fbaddress[POINTPOS(viewports[vp].x,y)],
232	&screen.fbaddress[POINTPOS(viewports[vp].x,startline)],	232	&screen.fbaddress[POINTPOS(viewports[vp].x,startline)],
233	screen.pixelbytes * viewports[vp].width);	233	screen.pixelbytes * viewports[vp].width);
234		234
235	} else if (rows < 0) {	235	} else if (rows < 0) {
236	rows = -rows;	236	rows = -rows;
237	for (y=viewports[vp].y + viewports[vp].height-1; y >= viewports[vp].y + rows*FONT_SCANLINES; y--)	237	for (y=viewports[vp].y + viewports[vp].height-1; y >= viewports[vp].y + rows*FONT_SCANLINES; y--)
238	memcpy(&screen.fbaddress[POINTPOS(viewports[vp].x,y)],	238	memcpy(&screen.fbaddress[POINTPOS(viewports[vp].x,y)],
239	&screen.fbaddress[POINTPOS(viewports[vp].x,y - rows*FONT_SCANLINES)],	239	&screen.fbaddress[POINTPOS(viewports[vp].x,y - rows*FONT_SCANLINES)],
240	screen.pixelbytes * viewports[vp].width);	240	screen.pixelbytes * viewports[vp].width);
241	/* Clear first row */	241	/* Clear first row */
242	clear_line(0, viewports[vp].bgcolor);	242	clear_line(0, viewports[vp].style.bg_color);
243	for (y=1;y < rows*FONT_SCANLINES; y++)	243	for (y=1;y < rows*FONT_SCANLINES; y++)
244	memcpy(&screen.fbaddress[POINTPOS(viewports[vp].x,viewports[vp].y+y)],	244	memcpy(&screen.fbaddress[POINTPOS(viewports[vp].x,viewports[vp].y+y)],
245	&screen.fbaddress[POINTPOS(viewports[vp].x,viewports[vp].y)],	245	&screen.fbaddress[POINTPOS(viewports[vp].x,viewports[vp].y)],
246	screen.pixelbytes * viewports[vp].width);	246	screen.pixelbytes * viewports[vp].width);
247	}	247	}
248	}	248	}
249		249
250	static void invert_pixel(int vp,unsigned int x, unsigned int y)	250	static void invert_pixel(int vp,unsigned int x, unsigned int y)
251	{	251	{
252	putpixel(vp, x, y, ~getpixel(vp, x, y));	252	putpixel(vp, x, y, ~getpixel(vp, x, y));
253	}	253	}
254		254
255		255
256	/** Draw one line of glyph at a given position */	-
257	static void draw_glyph_line(int vp,unsigned int glline, unsigned int x, unsigned int y)	-
258	{	-
259	unsigned int i;	-
260		-
261	for (i = 0; i < 8; i++)	-
262	if (glline & (1 << (7 - i))) {	-
263	putpixel(vp, x + i, y, viewports[vp].fgcolor);	-
264	} else	-
265	putpixel(vp, x + i, y, viewports[vp].bgcolor);	-
266	}	-
267		-
268	/***************************************************************/	256	/***************************************************************/
269	/* Character-console functions */	257	/* Character-console functions */
270		258
271	/** Draw character at given position */	259	/** Draw character at given position */
272	static void draw_glyph(int vp,__u8 glyph, unsigned int sx, unsigned int sy)	260	static void draw_glyph(int vp,__u8 glyph, unsigned int sx, unsigned int sy, style_t style)
273	{	261	{
-		262	int i;
274	unsigned int y;	263	unsigned int y;
-		264	unsigned int glline;
275		265
276	for (y = 0; y < FONT_SCANLINES; y++)	266	for (y = 0; y < FONT_SCANLINES; y++) {
277	draw_glyph_line(vp ,fb_font[glyph * FONT_SCANLINES + y], sx, sy + y);	267	glline = fb_font[glyph * FONT_SCANLINES + y];
-		268	for (i = 0; i < 8; i++) {
-		269	if (glline & (1 << (7 - i)))
-		270	putpixel(vp, sx + i, sy + y, style.fg_color);
-		271	else
-		272	putpixel(vp, sx + i, sy + y, style.bg_color);
-		273	}
-		274	}
278	}	275	}
279		276
280	/** Invert character at given position */	277	/** Invert character at given position */
281	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)
282	{	279	{
283	unsigned int x;	280	unsigned int x;
284	unsigned int y;	281	unsigned int y;
285		282
286	for (x = 0; x < COL_WIDTH; x++)	283	for (x = 0; x < COL_WIDTH; x++)
287	for (y = 0; y < FONT_SCANLINES; y++)	284	for (y = 0; y < FONT_SCANLINES; y++)
288	invert_pixel(vp, col * COL_WIDTH + x, row * FONT_SCANLINES + y);	285	invert_pixel(vp, col * COL_WIDTH + x, row * FONT_SCANLINES + y);
289	}	286	}
290		287
291	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)
292	{	289	{
293	unsigned int x;	290	unsigned int x;
294	unsigned int y;	291	unsigned int y;
295	unsigned int byte;	292	unsigned int byte;
296	unsigned int rowbytes;	293	unsigned int rowbytes;
297		294
298	rowbytes = (helenos_width - 1) / 8 + 1;	295	rowbytes = (helenos_width - 1) / 8 + 1;
299		296
300	for (y = 0; y < helenos_height; y++)	297	for (y = 0; y < helenos_height; y++)
301	for (x = 0; x < helenos_width; x++) {	298	for (x = 0; x < helenos_width; x++) {
302	byte = helenos_bits[rowbytes * y + x / 8];	299	byte = helenos_bits[rowbytes * y + x / 8];
303	byte >>= x % 8;	300	byte >>= x % 8;
304	if (byte & 1)	301	if (byte & 1)
305	putpixel(vp ,startx + x, starty + y, viewports[vp].fgcolor);	302	putpixel(vp ,startx + x, starty + y, viewports[vp].style.fg_color);
306	}	303	}
307	}	304	}
308		305
309	/***************************************************************/	306	/***************************************************************/
310	/* Stdout specific functions */	307	/* Stdout specific functions */
311		308
312		309
313	/** Create new viewport	310	/** Create new viewport
314	*	311	*
315	* @return New viewport number	312	* @return New viewport number
316	*/	313	*/
317	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,
318	unsigned int height)	315	unsigned int height)
319	{	316	{
320	int i;	317	int i;
321		318
322	for (i=0; i < MAX_VIEWPORTS; i++) {	319	for (i=0; i < MAX_VIEWPORTS; i++) {
323	if (!viewports[i].initialized)	320	if (!viewports[i].initialized)
324	break;	321	break;
325	}	322	}
326	if (i == MAX_VIEWPORTS)	323	if (i == MAX_VIEWPORTS)
327	return ELIMIT;	324	return ELIMIT;
328		325
329	if (width ==0 \|\| height == 0 \|\|	326	if (width ==0 \|\| height == 0 \|\|
330	x+width > screen.xres \|\| y+height > screen.yres)	327	x+width > screen.xres \|\| y+height > screen.yres)
331	return EINVAL;	328	return EINVAL;
332	if (width < FONT_SCANLINES \|\| height < COL_WIDTH)	329	if (width < FONT_SCANLINES \|\| height < COL_WIDTH)
333	return EINVAL;	330	return EINVAL;
334		331
335	viewports[i].x = x;	332	viewports[i].x = x;
336	viewports[i].y = y;	333	viewports[i].y = y;
337	viewports[i].width = width;	334	viewports[i].width = width;
338	viewports[i].height = height;	335	viewports[i].height = height;
339		336
340	viewports[i].rows = height / FONT_SCANLINES;	337	viewports[i].rows = height / FONT_SCANLINES;
341	viewports[i].cols = width / COL_WIDTH;	338	viewports[i].cols = width / COL_WIDTH;
342		339
343	viewports[i].bgcolor = DEFAULT_BGCOLOR;	340	viewports[i].style.bg_color = DEFAULT_BGCOLOR;
344	viewports[i].fgcolor = DEFAULT_FGCOLOR;	341	viewports[i].style.fg_color = DEFAULT_FGCOLOR;
345		342
346	viewports[i].cur_col = 0;	343	viewports[i].cur_col = 0;
347	viewports[i].cur_row = 0;	344	viewports[i].cur_row = 0;
348	viewports[i].cursor_active = 0;	345	viewports[i].cursor_active = 0;
349		346
350	viewports[i].initialized = 1;	347	viewports[i].initialized = 1;
351		348
352	return i;	349	return i;
353	}	350	}
354		351
355		352
356	/** Initialize framebuffer as a chardev output device	353	/** Initialize framebuffer as a chardev output device
357	*	354	*
358	* @param addr Address of theframebuffer	355	* @param addr Address of theframebuffer
359	* @param x Screen width in pixels	356	* @param x Screen width in pixels
360	* @param y Screen height in pixels	357	* @param y Screen height in pixels
361	* @param bpp Bits per pixel (8, 16, 24, 32)	358	* @param bpp Bits per pixel (8, 16, 24, 32)
362	* @param scan Bytes per one scanline	359	* @param scan Bytes per one scanline
363	*	360	*
364	*/	361	*/
365	static void screen_init(void *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)
366	{	363	{
367	switch (bpp) {	364	switch (bpp) {
368	case 8:	365	case 8:
369	screen.putpixel = putpixel_1byte;	366	screen.putpixel = putpixel_1byte;
370	screen.getpixel = getpixel_1byte;	367	screen.getpixel = getpixel_1byte;
371	screen.pixelbytes = 1;	368	screen.pixelbytes = 1;
372	break;	369	break;
373	case 16:	370	case 16:
374	screen.putpixel = putpixel_2byte;	371	screen.putpixel = putpixel_2byte;
375	screen.getpixel = getpixel_2byte;	372	screen.getpixel = getpixel_2byte;
376	screen.pixelbytes = 2;	373	screen.pixelbytes = 2;
377	break;	374	break;
378	case 24:	375	case 24:
379	screen.putpixel = putpixel_3byte;	376	screen.putpixel = putpixel_3byte;
380	screen.getpixel = getpixel_3byte;	377	screen.getpixel = getpixel_3byte;
381	screen.pixelbytes = 3;	378	screen.pixelbytes = 3;
382	break;	379	break;
383	case 32:	380	case 32:
384	screen.putpixel = putpixel_4byte;	381	screen.putpixel = putpixel_4byte;
385	screen.getpixel = getpixel_4byte;	382	screen.getpixel = getpixel_4byte;
386	screen.pixelbytes = 4;	383	screen.pixelbytes = 4;
387	break;	384	break;
388	}	385	}
389		386
390		387
391	screen.fbaddress = (unsigned char *) addr;	388	screen.fbaddress = (unsigned char *) addr;
392	screen.xres = xres;	389	screen.xres = xres;
393	screen.yres = yres;	390	screen.yres = yres;
394	screen.scanline = scan;	391	screen.scanline = scan;
395		392
396	/* Create first viewport */	393	/* Create first viewport */
397	viewport_create(0,0,xres,yres);	394	viewport_create(0,0,xres,yres);
398		395
399	clear_port(0);	396	clear_port(0);
400	}	397	}
401		398
402	static void cursor_hide(int vp)	399	static void cursor_hide(int vp)
403	{	400	{
404	viewport_t *vport = &viewports[vp];	401	viewport_t *vport = &viewports[vp];
405		402
406	if (vport->cursor_active && vport->cursor_shown) {	403	if (vport->cursor_active && vport->cursor_shown) {
407	invert_char(vp, vport->cur_row, vport->cur_col);	404	invert_char(vp, vport->cur_row, vport->cur_col);
408	vport->cursor_shown = 0;	405	vport->cursor_shown = 0;
409	}	406	}
410	}	407	}
411		408
412	static void cursor_print(int vp)	409	static void cursor_print(int vp)
413	{	410	{
414	viewport_t *vport = &viewports[vp];	411	viewport_t *vport = &viewports[vp];
415		412
416	/* Do not check for cursor_shown */	413	/* Do not check for cursor_shown */
417	if (vport->cursor_active) {	414	if (vport->cursor_active) {
418	invert_char(vp, vport->cur_row, vport->cur_col);	415	invert_char(vp, vport->cur_row, vport->cur_col);
419	vport->cursor_shown = 1;	416	vport->cursor_shown = 1;
420	}	417	}
421	}	418	}
422		419
423	static void cursor_blink(int vp)	420	static void cursor_blink(int vp)
424	{	421	{
425	viewport_t *vport = &viewports[vp];	422	viewport_t *vport = &viewports[vp];
426		423
427	if (vport->cursor_shown)	424	if (vport->cursor_shown)
428	cursor_hide(vp);	425	cursor_hide(vp);
429	else	426	else
430	cursor_print(vp);	427	cursor_print(vp);
431	}	428	}
432		429
433	/** Draw character at given position relative to viewport	430	/** Draw character at given position relative to viewport
434	*	431	*
435	* @param vp Viewport identification	432	* @param vp Viewport identification
436	* @param c Character to print	433	* @param c Character to print
437	* @param row Screen position relative to viewport	434	* @param row Screen position relative to viewport
438	* @param col Screen position relative to viewport	435	* @param col Screen position relative to viewport
439	*/	436	*/
440	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, style_t style)
441	{	438	{
442	viewport_t *vport = &viewports[vp];	439	viewport_t *vport = &viewports[vp];
443		440
444	/* 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 */
445	if (vport->cursor_active && vport->cursor_shown &&	442	if (vport->cursor_active && vport->cursor_shown &&
446	(vport->cur_col != col \|\| vport->cur_row != row))	443	(vport->cur_col != col \|\| vport->cur_row != row))
447	invert_char(vp, vport->cur_row, vport->cur_col);	444	invert_char(vp, vport->cur_row, vport->cur_col);
448		445
449	draw_glyph(vp, c, col * COL_WIDTH, row * FONT_SCANLINES);	446	draw_glyph(vp, c, col * COL_WIDTH, row * FONT_SCANLINES, style);
450		447
451	vport->cur_col = col;	448	vport->cur_col = col;
452	vport->cur_row = row;	449	vport->cur_row = row;
453		450
454	vport->cur_col++;	451	vport->cur_col++;
455	if (vport->cur_col>= vport->cols) {	452	if (vport->cur_col>= vport->cols) {
456	vport->cur_col = 0;	453	vport->cur_col = 0;
457	vport->cur_row++;	454	vport->cur_row++;
458	if (vport->cur_row >= vport->rows)	455	if (vport->cur_row >= vport->rows)
459	vport->cur_row--;	456	vport->cur_row--;
460	}	457	}
461	cursor_print(vp);	458	cursor_print(vp);
462	}	459	}
463		460
464	static void draw_text_data(int vp, keyfield_t *data)	461	static void draw_text_data(int vp, keyfield_t *data)
465	{	462	{
466	viewport_t *vport = &viewports[vp];	463	viewport_t *vport = &viewports[vp];
467	int i;	464	int i;
468	char c;	465	char c;
469		466
470	clear_port(vp);	467	clear_port(vp);
471	for (i=0; i < vport->cols * vport->rows; i++) {	468	for (i=0; i < vport->cols * vport->rows; i++) {
472	if (data[i].character == ' ') /* TODO: && data[i].style==vport->style */	469	if (data[i].character == ' ' && style_same(data[i].style,vport->style))
473	continue;	470	continue;
474	draw_char(vp, data[i].character, i/vport->rows, i % vport->cols);	471	draw_char(vp, data[i].character, i/vport->rows, i % vport->cols,
-		472	data[i].style);
475	}	473	}
476	cursor_print(vp);	474	cursor_print(vp);
477	}	475	}
478		476
479		477
480	/** Function for handling connections to FB	478	/** Function for handling connections to FB
481	*	479	*
482	*/	480	*/
483	static void fb_client_connection(ipc_callid_t iid, ipc_call_t *icall)	481	static void fb_client_connection(ipc_callid_t iid, ipc_call_t *icall)
484	{	482	{
485	ipc_callid_t callid;	483	ipc_callid_t callid;
486	ipc_call_t call;	484	ipc_call_t call;
487	int retval;	485	int retval;
488	int i;	486	int i;
489	unsigned int row,col;	487	unsigned int row,col;
490	char c;	488	char c;

Subversion Repositories HelenOS-historic

(root)/uspace/trunk/fb/fb.c – Rev 1505 → 1509