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"
#include "ppm.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;
 
/** Maximum number of saved pixmaps
 * Pixmap is a saved rectangle
 */
#define MAX_PIXMAPS        256
typedef struct {
    unsigned int width;
    unsigned int height;
    void *data;
} pixmap_t;
static pixmap_t pixmaps[MAX_PIXMAPS];
 
/* Viewport is a rectangular area on the screen */
#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);
}
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
/***************************************************************/
/* 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);
}
 
/** Hide cursor if it is shown */
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;
    }
}
 
/** Show cursor if cursor showing is enabled */
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;
    }
}
 
/** Invert cursor, if it is enabled */
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);
}
 
/** Draw text data to viewport
 *
 * @param vp Viewport id
 * @param data Text data fitting exactly into viewport
 */
static void draw_text_data(int vp, keyfield_t *data)
{
    viewport_t *vport = &viewports[vp];
    int i;
    char c;
    int col,row;
 
    clear_port(vp);
    for (i=0; i < vport->cols * vport->rows; i++) {
        if (data[i].character == ' ' && style_same(data[i].style,vport->style))
            continue;
        col = i % vport->cols;
        row = i / vport->cols;
        draw_glyph(vp, data[i].character, col * COL_WIDTH, row * FONT_SCANLINES, data[i].style);
    }
    cursor_print(vp);
}
 
/** Handle shared memory communication calls
 *
 * Protocol for drawing pixmaps:
 * - FB_PREPARE_SHM(client shm identification)
 * - IPC_M_SEND_AS_AREA
 * - FB_DRAW_PPM(startx,starty)
 * - FB_DROP_SHM
 *
 * Protocol for text drawing
 * - IPC_M_SEND_AS_AREA
 * - FB_DRAW_TEXT_DATA
 *
 * @param callid Callid of the current call
 * @param call Current call data
 * @param vp Active viewport
 * @return 0 if the call was not handled byt this function, 1 otherwise
 *
 * note: this function is not threads safe, you would have
 * to redefine static variables with __thread
 */
static int shm_handle(ipc_callid_t callid, ipc_call_t *call, int vp)
{
    static keyfield_t *interbuffer = NULL;
    static size_t intersize = 0;
 
    static char *pixmap = NULL;
    static ipcarg_t pixmap_id = 0;
    static size_t pixmap_size;
 
    int handled = 1;
    int retval = 0;
    viewport_t *vport = &viewports[vp];
    unsigned int x,y;
 
    switch (IPC_GET_METHOD(*call)) {
    case IPC_M_AS_AREA_SEND:
        /* We accept one area for data interchange */
        if (IPC_GET_ARG1(*call) == pixmap_id) {
            void *dest = as_get_mappable_page(IPC_GET_ARG2(*call));
            pixmap_size = IPC_GET_ARG2(*call);
            if (!ipc_answer_fast(callid, 0, (sysarg_t)dest, 0))
                pixmap = dest;
            else
                pixmap_id = 0;
            if (pixmap[0] != 'P')
                while (1)
                    ;
            return 1;
        } else {
            intersize = IPC_GET_ARG2(*call);
            receive_comm_area(callid,call,(void **)&interbuffer);
        }
        return 1;
    case FB_PREPARE_SHM:
        if (pixmap_id)
            retval = EBUSY;
        else
            pixmap_id = IPC_GET_ARG1(*call);
        break;
       
    case FB_DROP_SHM:
        if (pixmap) {
            as_area_destroy(pixmap);
            pixmap = NULL;
        }
        pixmap_id = 0;
        break;
       
    case FB_DRAW_PPM:
        if (!pixmap) {
            retval = EINVAL;
            break;
        }
        x = IPC_GET_ARG1(*call);
        y = IPC_GET_ARG2(*call);
        if (x > vport->width || y > vport->height) {
            retval = EINVAL;
            break;
        }
       
        draw_ppm(pixmap, pixmap_size, IPC_GET_ARG1(*call), IPC_GET_ARG2(*call),
             vport->width - x, vport->height - y, putpixel, vp);
        break;
    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);
        break;
    default:
        handled = 0;
    }
   
    if (handled)
        ipc_answer_fast(callid, retval, 0, 0);
    return handled;
}
 
/** Return first free pixmap */
static int find_free_pixmap(void)
{
    int i;
   
    for (i=0;i < MAX_PIXMAPS;i++)
        if (!pixmaps[i].data)
            return i;
    return -1;
}
 
/** Save viewport to pixmap */
static int save_vp_to_pixmap(int vp)
{
    int pm;
    pixmap_t *pmap;
    viewport_t *vport = &viewports[vp];
    int x,y;
    int rowsize;
    int tmp;
 
    pm = find_free_pixmap();
    if (pm == -1)
        return ELIMIT;
   
    pmap = &pixmaps[pm];
    pmap->data = malloc(screen.pixelbytes * vport->width * vport->height);
    if (!pmap->data)
        return ENOMEM;
 
    pmap->width = vport->width;
    pmap->height = vport->height;
   
    rowsize = vport->width * screen.pixelbytes;
    for (y=0;y < vport->height; y++) {
        tmp = (vport->y + y) * screen.scanline + vport->x * screen.pixelbytes;
        memcpy(pmap->data + rowsize*y, screen.fbaddress + tmp, rowsize);
    }
    return pm;
}
 
/** Draw pixmap on screen
 *
 * @param vp Viewport to draw on
 * @param pm Pixmap identifier
 */
static int draw_pixmap(int vp, int pm)
{
    pixmap_t *pmap = &pixmaps[pm];
    viewport_t *vport = &viewports[vp];
    int x,y;
    int tmp, srcrowsize;
    int realwidth, realheight, realrowsize;
 
    if (!pmap->data)
        return EINVAL;
 
    realwidth = pmap->width <= vport->width ? pmap->width : vport->width;
    realheight = pmap->height <= vport->height ? pmap->height : vport->height;
 
    srcrowsize = vport->width * screen.pixelbytes;
    realrowsize = realwidth * screen.pixelbytes;
 
    for (y=0; y < realheight; y++) {
        tmp = (vport->y + y) * screen.scanline + vport->x * screen.pixelbytes;
        memcpy(screen.fbaddress + tmp, pmap->data + y * srcrowsize, realrowsize);
    }
}
 
/** Handler for messages concerning pixmap handling */
static int pixmap_handle(ipc_callid_t callid, ipc_call_t *call, int vp)
{
    int handled = 1;
    int retval = 0;
    int i,nvp;
 
    switch (IPC_GET_METHOD(*call)) {
    case FB_VP_DRAW_PIXMAP:
        nvp = IPC_GET_ARG1(*call);
        if (nvp == -1)
            nvp = vp;
        if (nvp < 0 || nvp >= MAX_VIEWPORTS || !viewports[nvp].initialized) {
            retval = EINVAL;
            break;
        }
        i = IPC_GET_ARG2(*call);
        retval = draw_pixmap(nvp, i);
        break;
    case FB_VP2PIXMAP:
        nvp = IPC_GET_ARG1(*call);
        if (nvp == -1)
            nvp = vp;
        if (nvp < 0 || nvp >= MAX_VIEWPORTS || !viewports[nvp].initialized)
            retval = EINVAL;
        else
            retval = save_vp_to_pixmap(nvp);
        break;
    case FB_DROP_PIXMAP:
        i = IPC_GET_ARG1(*call);
        if (i >= MAX_PIXMAPS) {
            retval = EINVAL;
            break;
        }
        if (pixmaps[i].data) {
            free(pixmaps[i].data);
            pixmaps[i].data = NULL;
        }
        break;
    default:
        handled = 0;
    }
 
    if (handled)
        ipc_answer_fast(callid, retval, 0, 0);
    return handled;
   
}
 
/** Function for handling connections to FB
 *
 */
static void fb_client_connection(ipc_callid_t iid, ipc_call_t *icall)
{
    ipc_callid_t callid;
    ipc_call_t call;
    int retval;
    int i;
    unsigned int row,col;
    char c;
 
    int vp = 0;
    viewport_t *vport = &viewports[0];
 
    if (client_connected) {
        ipc_answer_fast(iid, ELIMIT, 0,0);
        return;
    }
    client_connected = 1;
    ipc_answer_fast(iid, 0, 0, 0); /* Accept connection */
 
    while (1) {
        callid = async_get_call_timeout(&call,250000);
        if (!callid) {
            cursor_blink(vp);
            continue;
        }
        if (shm_handle(callid, &call, vp))
            continue;
        if (pixmap_handle(callid, &call, vp))
            continue;
 
        switch (IPC_GET_METHOD(call)) {
        case IPC_M_PHONE_HUNGUP:
            client_connected = 0;
            /* cleanup other viewports */
            for (i=1; i < MAX_VIEWPORTS; i++)
                vport->initialized = 0;
            ipc_answer_fast(callid,0,0,0);
            return; /* Exit thread */
 
        case FB_PUTCHAR:
            c = IPC_GET_ARG1(call);
            row = IPC_GET_ARG2(call);
            col = IPC_GET_ARG3(call);
            if (row >= vport->rows || col >= vport->cols) {
                retval = EINVAL;
                break;
            }
            ipc_answer_fast(callid,0,0,0);
 
            draw_char(vp, c, row, col, 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 1547	Rev 1552
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	#include "ppm.h"	49	#include "ppm.h"
50		50
51	#define DEFAULT_BGCOLOR 0x000080	51	#define DEFAULT_BGCOLOR 0x000080
52	#define DEFAULT_FGCOLOR 0xffff00	52	#define DEFAULT_FGCOLOR 0xffff00
53		53
54	/***************************************************************/	54	/***************************************************************/
55	/* Pixel specific fuctions */	55	/* Pixel specific fuctions */
56		56
57	typedef void (*putpixel_fn_t)(unsigned int x, unsigned int y, int color);	57	typedef void (*putpixel_fn_t)(unsigned int x, unsigned int y, int color);
58	typedef int (*getpixel_fn_t)(unsigned int x, unsigned int y);	58	typedef int (*getpixel_fn_t)(unsigned int x, unsigned int y);
59		59
60	struct {	60	struct {
61	__u8 *fbaddress ;	61	__u8 *fbaddress ;
62		62
63	unsigned int xres ;	63	unsigned int xres ;
64	unsigned int yres ;	64	unsigned int yres ;
65	unsigned int scanline ;	65	unsigned int scanline ;
66	unsigned int pixelbytes ;	66	unsigned int pixelbytes ;
67		67
68	putpixel_fn_t putpixel;	68	putpixel_fn_t putpixel;
69	getpixel_fn_t getpixel;	69	getpixel_fn_t getpixel;
70	} screen;	70	} screen;
71		71
72	typedef struct {	72	typedef struct {
73	int initialized;	73	int initialized;
74	unsigned int x, y;	74	unsigned int x, y;
75	unsigned int width, height;	75	unsigned int width, height;
76		76
77	/* Text support in window */	77	/* Text support in window */
78	unsigned int rows, cols;	78	unsigned int rows, cols;
79	/* Style for text printing */	79	/* Style for text printing */
80	style_t style;	80	style_t style;
81	/* Auto-cursor position */	81	/* Auto-cursor position */
82	int cursor_active, cur_col, cur_row;	82	int cursor_active, cur_col, cur_row;
83	int cursor_shown;	83	int cursor_shown;
84	} viewport_t;	84	} viewport_t;
85		85
-		86	/** Maximum number of saved pixmaps
-		87	* Pixmap is a saved rectangle
-		88	*/
-		89	#define MAX_PIXMAPS 256
-		90	typedef struct {
-		91	unsigned int width;
-		92	unsigned int height;
-		93	void *data;
-		94	} pixmap_t;
-		95	static pixmap_t pixmaps[MAX_PIXMAPS];
-		96
-		97	/* Viewport is a rectangular area on the screen */
86	#define MAX_VIEWPORTS 128	98	#define MAX_VIEWPORTS 128
87	static viewport_t viewports[128];	99	static viewport_t viewports[128];
88		100
89	/* Allow only 1 connection */	101	/* Allow only 1 connection */
90	static int client_connected = 0;	102	static int client_connected = 0;
91		103
92	#define RED(x, bits) ((x >> (16 + 8 - bits)) & ((1 << bits) - 1))	104	#define RED(x, bits) ((x >> (16 + 8 - bits)) & ((1 << bits) - 1))
93	#define GREEN(x, bits) ((x >> (8 + 8 - bits)) & ((1 << bits) - 1))	105	#define GREEN(x, bits) ((x >> (8 + 8 - bits)) & ((1 << bits) - 1))
94	#define BLUE(x, bits) ((x >> (8 - bits)) & ((1 << bits) - 1))	106	#define BLUE(x, bits) ((x >> (8 - bits)) & ((1 << bits) - 1))
95		107
96	#define COL_WIDTH 8	108	#define COL_WIDTH 8
97	#define ROW_BYTES (screen.scanline * FONT_SCANLINES)	109	#define ROW_BYTES (screen.scanline * FONT_SCANLINES)
98		110
99	#define POINTPOS(x, y) ((y) * screen.scanline + (x) * screen.pixelbytes)	111	#define POINTPOS(x, y) ((y) * screen.scanline + (x) * screen.pixelbytes)
100		112
101	/** Put pixel - 24-bit depth, 1 free byte */	113	/** Put pixel - 24-bit depth, 1 free byte */
102	static void putpixel_4byte(unsigned int x, unsigned int y, int color)	114	static void putpixel_4byte(unsigned int x, unsigned int y, int color)
103	{	115	{
104	((__u32 )(screen.fbaddress + POINTPOS(x, y))) = color;	116	((__u32 )(screen.fbaddress + POINTPOS(x, y))) = color;
105	}	117	}
106		118
107	/** Return pixel color - 24-bit depth, 1 free byte */	119	/** Return pixel color - 24-bit depth, 1 free byte */
108	static int getpixel_4byte(unsigned int x, unsigned int y)	120	static int getpixel_4byte(unsigned int x, unsigned int y)
109	{	121	{
110	return ((__u32 )(screen.fbaddress + POINTPOS(x, y))) & 0xffffff;	122	return ((__u32 )(screen.fbaddress + POINTPOS(x, y))) & 0xffffff;
111	}	123	}
112		124
113	/** Put pixel - 24-bit depth */	125	/** Put pixel - 24-bit depth */
114	static void putpixel_3byte(unsigned int x, unsigned int y, int color)	126	static void putpixel_3byte(unsigned int x, unsigned int y, int color)
115	{	127	{
116	unsigned int startbyte = POINTPOS(x, y);	128	unsigned int startbyte = POINTPOS(x, y);
117		129
118	#if (defined(BIG_ENDIAN) \|\| defined(FB_BIG_ENDIAN))	130	#if (defined(BIG_ENDIAN) \|\| defined(FB_BIG_ENDIAN))
119	screen.fbaddress[startbyte] = RED(color, 8);	131	screen.fbaddress[startbyte] = RED(color, 8);
120	screen.fbaddress[startbyte + 1] = GREEN(color, 8);	132	screen.fbaddress[startbyte + 1] = GREEN(color, 8);
121	screen.fbaddress[startbyte + 2] = BLUE(color, 8);	133	screen.fbaddress[startbyte + 2] = BLUE(color, 8);
122	#else	134	#else
123	screen.fbaddress[startbyte + 2] = RED(color, 8);	135	screen.fbaddress[startbyte + 2] = RED(color, 8);
124	screen.fbaddress[startbyte + 1] = GREEN(color, 8);	136	screen.fbaddress[startbyte + 1] = GREEN(color, 8);
125	screen.fbaddress[startbyte + 0] = BLUE(color, 8);	137	screen.fbaddress[startbyte + 0] = BLUE(color, 8);
126	#endif	138	#endif
127		139
128	}	140	}
129		141
130	/** Return pixel color - 24-bit depth */	142	/** Return pixel color - 24-bit depth */
131	static int getpixel_3byte(unsigned int x, unsigned int y)	143	static int getpixel_3byte(unsigned int x, unsigned int y)
132	{	144	{
133	unsigned int startbyte = POINTPOS(x, y);	145	unsigned int startbyte = POINTPOS(x, y);
134		146
135		147
136		148
137	#if (defined(BIG_ENDIAN) \|\| defined(FB_BIG_ENDIAN))	149	#if (defined(BIG_ENDIAN) \|\| defined(FB_BIG_ENDIAN))
138	return screen.fbaddress[startbyte] << 16 \| screen.fbaddress[startbyte + 1] << 8 \| screen.fbaddress[startbyte + 2];	150	return screen.fbaddress[startbyte] << 16 \| screen.fbaddress[startbyte + 1] << 8 \| screen.fbaddress[startbyte + 2];
139	#else	151	#else
140	return screen.fbaddress[startbyte + 2] << 16 \| screen.fbaddress[startbyte + 1] << 8 \| screen.fbaddress[startbyte + 0];	152	return screen.fbaddress[startbyte + 2] << 16 \| screen.fbaddress[startbyte + 1] << 8 \| screen.fbaddress[startbyte + 0];
141	#endif	153	#endif
142		154
143		155
144	}	156	}
145		157
146	/** Put pixel - 16-bit depth (5:6:5) */	158	/** Put pixel - 16-bit depth (5:6:5) */
147	static void putpixel_2byte(unsigned int x, unsigned int y, int color)	159	static void putpixel_2byte(unsigned int x, unsigned int y, int color)
148	{	160	{
149	/* 5-bit, 6-bits, 5-bits */	161	/* 5-bit, 6-bits, 5-bits */
150	((__u16 )(screen.fbaddress + POINTPOS(x, y))) = RED(color, 5) << 11 \| GREEN(color, 6) << 5 \| BLUE(color, 5);	162	((__u16 )(screen.fbaddress + POINTPOS(x, y))) = RED(color, 5) << 11 \| GREEN(color, 6) << 5 \| BLUE(color, 5);
151	}	163	}
152		164
153	/** Return pixel color - 16-bit depth (5:6:5) */	165	/** Return pixel color - 16-bit depth (5:6:5) */
154	static int getpixel_2byte(unsigned int x, unsigned int y)	166	static int getpixel_2byte(unsigned int x, unsigned int y)
155	{	167	{
156	int color = ((__u16 )(screen.fbaddress + POINTPOS(x, y)));	168	int color = ((__u16 )(screen.fbaddress + POINTPOS(x, y)));
157	return (((color >> 11) & 0x1f) << (16 + 3)) \| (((color >> 5) & 0x3f) << (8 + 2)) \| ((color & 0x1f) << 3);	169	return (((color >> 11) & 0x1f) << (16 + 3)) \| (((color >> 5) & 0x3f) << (8 + 2)) \| ((color & 0x1f) << 3);
158	}	170	}
159		171
160	/** Put pixel - 8-bit depth (3:2:3) */	172	/** Put pixel - 8-bit depth (3:2:3) */
161	static void putpixel_1byte(unsigned int x, unsigned int y, int color)	173	static void putpixel_1byte(unsigned int x, unsigned int y, int color)
162	{	174	{
163	screen.fbaddress[POINTPOS(x, y)] = RED(color, 3) << 5 \| GREEN(color, 2) << 3 \| BLUE(color, 3);	175	screen.fbaddress[POINTPOS(x, y)] = RED(color, 3) << 5 \| GREEN(color, 2) << 3 \| BLUE(color, 3);
164	}	176	}
165		177
166	/** Return pixel color - 8-bit depth (3:2:3) */	178	/** Return pixel color - 8-bit depth (3:2:3) */
167	static int getpixel_1byte(unsigned int x, unsigned int y)	179	static int getpixel_1byte(unsigned int x, unsigned int y)
168	{	180	{
169	int color = screen.fbaddress[POINTPOS(x, y)];	181	int color = screen.fbaddress[POINTPOS(x, y)];
170	return (((color >> 5) & 0x7) << (16 + 5)) \| (((color >> 3) & 0x3) << (8 + 6)) \| ((color & 0x7) << 5);	182	return (((color >> 5) & 0x7) << (16 + 5)) \| (((color >> 3) & 0x3) << (8 + 6)) \| ((color & 0x7) << 5);
171	}	183	}
172		184
173	/** Put pixel into viewport	185	/** Put pixel into viewport
174	*	186	*
175	* @param vp Viewport identification	187	* @param vp Viewport identification
176	* @param x X coord relative to viewport	188	* @param x X coord relative to viewport
177	* @param y Y coord relative to viewport	189	* @param y Y coord relative to viewport
178	* @param color RGB color	190	* @param color RGB color
179	*/	191	*/
180	static void putpixel(int vp, unsigned int x, unsigned int y, int color)	192	static void putpixel(int vp, unsigned int x, unsigned int y, int color)
181	{	193	{
182	screen.putpixel(viewports[vp].x + x, viewports[vp].y + y, color);	194	screen.putpixel(viewports[vp].x + x, viewports[vp].y + y, color);
183	}	195	}
184	/** Get pixel from viewport */	196	/** Get pixel from viewport */
185	static int getpixel(int vp, unsigned int x, unsigned int y)	197	static int getpixel(int vp, unsigned int x, unsigned int y)
186	{	198	{
187	return screen.getpixel(viewports[vp].x + x, viewports[vp].y + y);	199	return screen.getpixel(viewports[vp].x + x, viewports[vp].y + y);
188	}	200	}
189		201
190	/** Fill line with color BGCOLOR */	202	/** Fill line with color BGCOLOR */
191	static void clear_line(int vp, unsigned int y)	203	static void clear_line(int vp, unsigned int y)
192	{	204	{
193	unsigned int x;	205	unsigned int x;
194	for (x = 0; x < viewports[vp].width; x++)	206	for (x = 0; x < viewports[vp].width; x++)
195	putpixel(vp, x, y, viewports[vp].style.bg_color);	207	putpixel(vp, x, y, viewports[vp].style.bg_color);
196	}	208	}
197		209
198	/** Fill viewport with background color */	210	/** Fill viewport with background color */
199	static void clear_port(int vp)	211	static void clear_port(int vp)
200	{	212	{
201	unsigned int y;	213	unsigned int y;
202		214
203	clear_line(vp, 0);	215	clear_line(vp, 0);
204	for (y = viewports[vp].y+1; y < viewports[vp].y+viewports[vp].height; y++) {	216	for (y = viewports[vp].y+1; y < viewports[vp].y+viewports[vp].height; y++) {
205	memcpy(&screen.fbaddress[POINTPOS(viewports[vp].x,y)],	217	memcpy(&screen.fbaddress[POINTPOS(viewports[vp].x,y)],
206	&screen.fbaddress[POINTPOS(viewports[vp].x,viewports[vp].y)],	218	&screen.fbaddress[POINTPOS(viewports[vp].x,viewports[vp].y)],
207	screen.pixelbytes * viewports[vp].width);	219	screen.pixelbytes * viewports[vp].width);
208	}	220	}
209	}	221	}
210		222
211	/** Scroll port up/down	223	/** Scroll port up/down
212	*	224	*
213	* @param vp Viewport to scroll	225	* @param vp Viewport to scroll
214	* @param rows Positive number - scroll up, negative - scroll down	226	* @param rows Positive number - scroll up, negative - scroll down
215	*/	227	*/
216	static void scroll_port(int vp, int rows)	228	static void scroll_port(int vp, int rows)
217	{	229	{
218	int y;	230	int y;
219	int startline;	231	int startline;
220	int endline;	232	int endline;
221		233
222	if (rows > 0) {	234	if (rows > 0) {
223	for (y=viewports[vp].y; y < viewports[vp].y+viewports[vp].height - rows*FONT_SCANLINES; y++)	235	for (y=viewports[vp].y; y < viewports[vp].y+viewports[vp].height - rows*FONT_SCANLINES; y++)
224	memcpy(&screen.fbaddress[POINTPOS(viewports[vp].x,y)],	236	memcpy(&screen.fbaddress[POINTPOS(viewports[vp].x,y)],
225	&screen.fbaddress[POINTPOS(viewports[vp].x,y + rows*FONT_SCANLINES)],	237	&screen.fbaddress[POINTPOS(viewports[vp].x,y + rows*FONT_SCANLINES)],
226	screen.pixelbytes * viewports[vp].width);	238	screen.pixelbytes * viewports[vp].width);
227	/* Clear last row */	239	/* Clear last row */
228	startline = viewports[vp].y+FONT_SCANLINES*(viewports[vp].rows-1);	240	startline = viewports[vp].y+FONT_SCANLINES*(viewports[vp].rows-1);
229	endline = viewports[vp].y + viewports[vp].height;	241	endline = viewports[vp].y + viewports[vp].height;
230	clear_line(vp, startline);	242	clear_line(vp, startline);
231	for (y=startline+1;y < endline; y++)	243	for (y=startline+1;y < endline; y++)
232	memcpy(&screen.fbaddress[POINTPOS(viewports[vp].x,y)],	244	memcpy(&screen.fbaddress[POINTPOS(viewports[vp].x,y)],
233	&screen.fbaddress[POINTPOS(viewports[vp].x,startline)],	245	&screen.fbaddress[POINTPOS(viewports[vp].x,startline)],
234	screen.pixelbytes * viewports[vp].width);	246	screen.pixelbytes * viewports[vp].width);
235		247
236	} else if (rows < 0) {	248	} else if (rows < 0) {
237	rows = -rows;	249	rows = -rows;
238	for (y=viewports[vp].y + viewports[vp].height-1; y >= viewports[vp].y + rows*FONT_SCANLINES; y--)	250	for (y=viewports[vp].y + viewports[vp].height-1; y >= viewports[vp].y + rows*FONT_SCANLINES; y--)
239	memcpy(&screen.fbaddress[POINTPOS(viewports[vp].x,y)],	251	memcpy(&screen.fbaddress[POINTPOS(viewports[vp].x,y)],
240	&screen.fbaddress[POINTPOS(viewports[vp].x,y - rows*FONT_SCANLINES)],	252	&screen.fbaddress[POINTPOS(viewports[vp].x,y - rows*FONT_SCANLINES)],
241	screen.pixelbytes * viewports[vp].width);	253	screen.pixelbytes * viewports[vp].width);
242	/* Clear first row */	254	/* Clear first row */
243	clear_line(0, viewports[vp].style.bg_color);	255	clear_line(0, viewports[vp].style.bg_color);
244	for (y=1;y < rows*FONT_SCANLINES; y++)	256	for (y=1;y < rows*FONT_SCANLINES; y++)
245	memcpy(&screen.fbaddress[POINTPOS(viewports[vp].x,viewports[vp].y+y)],	257	memcpy(&screen.fbaddress[POINTPOS(viewports[vp].x,viewports[vp].y+y)],
246	&screen.fbaddress[POINTPOS(viewports[vp].x,viewports[vp].y)],	258	&screen.fbaddress[POINTPOS(viewports[vp].x,viewports[vp].y)],
247	screen.pixelbytes * viewports[vp].width);	259	screen.pixelbytes * viewports[vp].width);
248	}	260	}
249	}	261	}
250		262
251	static void invert_pixel(int vp,unsigned int x, unsigned int y)	263	static void invert_pixel(int vp,unsigned int x, unsigned int y)
252	{	264	{
253	putpixel(vp, x, y, ~getpixel(vp, x, y));	265	putpixel(vp, x, y, ~getpixel(vp, x, y));
254	}	266	}
255		267
256		268
257	/***************************************************************/	269	/***************************************************************/
258	/* Character-console functions */	270	/* Character-console functions */
259		271
260	/** Draw character at given position */	272	/** Draw character at given position */
261	static void draw_glyph(int vp,__u8 glyph, unsigned int sx, unsigned int sy, style_t style)	273	static void draw_glyph(int vp,__u8 glyph, unsigned int sx, unsigned int sy, style_t style)
262	{	274	{
263	int i;	275	int i;
264	unsigned int y;	276	unsigned int y;
265	unsigned int glline;	277	unsigned int glline;
266		278
267	for (y = 0; y < FONT_SCANLINES; y++) {	279	for (y = 0; y < FONT_SCANLINES; y++) {
268	glline = fb_font[glyph * FONT_SCANLINES + y];	280	glline = fb_font[glyph * FONT_SCANLINES + y];
269	for (i = 0; i < 8; i++) {	281	for (i = 0; i < 8; i++) {
270	if (glline & (1 << (7 - i)))	282	if (glline & (1 << (7 - i)))
271	putpixel(vp, sx + i, sy + y, style.fg_color);	283	putpixel(vp, sx + i, sy + y, style.fg_color);
272	else	284	else
273	putpixel(vp, sx + i, sy + y, style.bg_color);	285	putpixel(vp, sx + i, sy + y, style.bg_color);
274	}	286	}
275	}	287	}
276	}	288	}
277		289
278	/** Invert character at given position */	290	/** Invert character at given position */
279	static void invert_char(int vp,unsigned int row, unsigned int col)	291	static void invert_char(int vp,unsigned int row, unsigned int col)
280	{	292	{
281	unsigned int x;	293	unsigned int x;
282	unsigned int y;	294	unsigned int y;
283		295
284	for (x = 0; x < COL_WIDTH; x++)	296	for (x = 0; x < COL_WIDTH; x++)
285	for (y = 0; y < FONT_SCANLINES; y++)	297	for (y = 0; y < FONT_SCANLINES; y++)
286	invert_pixel(vp, col * COL_WIDTH + x, row * FONT_SCANLINES + y);	298	invert_pixel(vp, col * COL_WIDTH + x, row * FONT_SCANLINES + y);
287	}	299	}
288		300
289	static void draw_logo(int vp,unsigned int startx, unsigned int starty)	-
290	{	-
291	unsigned int x;	-
292	unsigned int y;	-
293	unsigned int byte;	-
294	unsigned int rowbytes;	-
295		-
296	rowbytes = (helenos_width - 1) / 8 + 1;	-
297		-
298	for (y = 0; y < helenos_height; y++)	-
299	for (x = 0; x < helenos_width; x++) {	-
300	byte = helenos_bits[rowbytes * y + x / 8];	-
301	byte >>= x % 8;	-
302	if (byte & 1)	-
303	putpixel(vp ,startx + x, starty + y, viewports[vp].style.fg_color);	-
304	}	-
305	}	-
306		-
307	/***************************************************************/	301	/***************************************************************/
308	/* Stdout specific functions */	302	/* Stdout specific functions */
309		303
310		304
311	/** Create new viewport	305	/** Create new viewport
312	*	306	*
313	* @return New viewport number	307	* @return New viewport number
314	*/	308	*/
315	static int viewport_create(unsigned int x, unsigned int y,unsigned int width,	309	static int viewport_create(unsigned int x, unsigned int y,unsigned int width,
316	unsigned int height)	310	unsigned int height)
317	{	311	{
318	int i;	312	int i;
319		313
320	for (i=0; i < MAX_VIEWPORTS; i++) {	314	for (i=0; i < MAX_VIEWPORTS; i++) {
321	if (!viewports[i].initialized)	315	if (!viewports[i].initialized)
322	break;	316	break;
323	}	317	}
324	if (i == MAX_VIEWPORTS)	318	if (i == MAX_VIEWPORTS)
325	return ELIMIT;	319	return ELIMIT;
326		320
327	if (width ==0 \|\| height == 0 \|\|	321	if (width ==0 \|\| height == 0 \|\|
328	x+width > screen.xres \|\| y+height > screen.yres)	322	x+width > screen.xres \|\| y+height > screen.yres)
329	return EINVAL;	323	return EINVAL;
330	if (width < FONT_SCANLINES \|\| height < COL_WIDTH)	324	if (width < FONT_SCANLINES \|\| height < COL_WIDTH)
331	return EINVAL;	325	return EINVAL;
332		326
333	viewports[i].x = x;	327	viewports[i].x = x;
334	viewports[i].y = y;	328	viewports[i].y = y;
335	viewports[i].width = width;	329	viewports[i].width = width;
336	viewports[i].height = height;	330	viewports[i].height = height;
337		331
338	viewports[i].rows = height / FONT_SCANLINES;	332	viewports[i].rows = height / FONT_SCANLINES;
339	viewports[i].cols = width / COL_WIDTH;	333	viewports[i].cols = width / COL_WIDTH;
340		334
341	viewports[i].style.bg_color = DEFAULT_BGCOLOR;	335	viewports[i].style.bg_color = DEFAULT_BGCOLOR;
342	viewports[i].style.fg_color = DEFAULT_FGCOLOR;	336	viewports[i].style.fg_color = DEFAULT_FGCOLOR;
343		337
344	viewports[i].cur_col = 0;	338	viewports[i].cur_col = 0;
345	viewports[i].cur_row = 0;	339	viewports[i].cur_row = 0;
346	viewports[i].cursor_active = 0;	340	viewports[i].cursor_active = 0;
347		341
348	viewports[i].initialized = 1;	342	viewports[i].initialized = 1;
349		343
350	return i;	344	return i;
351	}	345	}
352		346
353		347
354	/** Initialize framebuffer as a chardev output device	348	/** Initialize framebuffer as a chardev output device
355	*	349	*
356	* @param addr Address of theframebuffer	350	* @param addr Address of theframebuffer
357	* @param x Screen width in pixels	351	* @param x Screen width in pixels
358	* @param y Screen height in pixels	352	* @param y Screen height in pixels
359	* @param bpp Bits per pixel (8, 16, 24, 32)	353	* @param bpp Bits per pixel (8, 16, 24, 32)
360	* @param scan Bytes per one scanline	354	* @param scan Bytes per one scanline
361	*	355	*
362	*/	356	*/
363	static void screen_init(void *addr, unsigned int xres, unsigned int yres, unsigned int bpp, unsigned int scan)	357	static void screen_init(void *addr, unsigned int xres, unsigned int yres, unsigned int bpp, unsigned int scan)
364	{	358	{
365	switch (bpp) {	359	switch (bpp) {
366	case 8:	360	case 8:
367	screen.putpixel = putpixel_1byte;	361	screen.putpixel = putpixel_1byte;
368	screen.getpixel = getpixel_1byte;	362	screen.getpixel = getpixel_1byte;
369	screen.pixelbytes = 1;	363	screen.pixelbytes = 1;
370	break;	364	break;
371	case 16:	365	case 16:
372	screen.putpixel = putpixel_2byte;	366	screen.putpixel = putpixel_2byte;
373	screen.getpixel = getpixel_2byte;	367	screen.getpixel = getpixel_2byte;
374	screen.pixelbytes = 2;	368	screen.pixelbytes = 2;
375	break;	369	break;
376	case 24:	370	case 24:
377	screen.putpixel = putpixel_3byte;	371	screen.putpixel = putpixel_3byte;
378	screen.getpixel = getpixel_3byte;	372	screen.getpixel = getpixel_3byte;
379	screen.pixelbytes = 3;	373	screen.pixelbytes = 3;
380	break;	374	break;
381	case 32:	375	case 32:
382	screen.putpixel = putpixel_4byte;	376	screen.putpixel = putpixel_4byte;
383	screen.getpixel = getpixel_4byte;	377	screen.getpixel = getpixel_4byte;
384	screen.pixelbytes = 4;	378	screen.pixelbytes = 4;
385	break;	379	break;
386	}	380	}
387		381
388		382
389	screen.fbaddress = (unsigned char *) addr;	383	screen.fbaddress = (unsigned char *) addr;
390	screen.xres = xres;	384	screen.xres = xres;
391	screen.yres = yres;	385	screen.yres = yres;
392	screen.scanline = scan;	386	screen.scanline = scan;
393		387
394	/* Create first viewport */	388	/* Create first viewport */
395	viewport_create(0,0,xres,yres);	389	viewport_create(0,0,xres,yres);
396	}	390	}
397		391
-		392	/** Hide cursor if it is shown */
398	static void cursor_hide(int vp)	393	static void cursor_hide(int vp)
399	{	394	{
400	viewport_t *vport = &viewports[vp];	395	viewport_t *vport = &viewports[vp];
401		396
402	if (vport->cursor_active && vport->cursor_shown) {	397	if (vport->cursor_active && vport->cursor_shown) {
403	invert_char(vp, vport->cur_row, vport->cur_col);	398	invert_char(vp, vport->cur_row, vport->cur_col);
404	vport->cursor_shown = 0;	399	vport->cursor_shown = 0;
405	}	400	}
406	}	401	}
407		402
-		403	/** Show cursor if cursor showing is enabled */
408	static void cursor_print(int vp)	404	static void cursor_print(int vp)
409	{	405	{
410	viewport_t *vport = &viewports[vp];	406	viewport_t *vport = &viewports[vp];
411		407
412	/* Do not check for cursor_shown */	408	/* Do not check for cursor_shown */
413	if (vport->cursor_active) {	409	if (vport->cursor_active) {
414	invert_char(vp, vport->cur_row, vport->cur_col);	410	invert_char(vp, vport->cur_row, vport->cur_col);
415	vport->cursor_shown = 1;	411	vport->cursor_shown = 1;
416	}	412	}
417	}	413	}
418		414
-		415	/** Invert cursor, if it is enabled */
419	static void cursor_blink(int vp)	416	static void cursor_blink(int vp)
420	{	417	{
421	viewport_t *vport = &viewports[vp];	418	viewport_t *vport = &viewports[vp];
422		419
423	if (vport->cursor_shown)	420	if (vport->cursor_shown)
424	cursor_hide(vp);	421	cursor_hide(vp);
425	else	422	else
426	cursor_print(vp);	423	cursor_print(vp);
427	}	424	}
428		425
429	/** Draw character at given position relative to viewport	426	/** Draw character at given position relative to viewport
430	*	427	*
431	* @param vp Viewport identification	428	* @param vp Viewport identification
432	* @param c Character to print	429	* @param c Character to print
433	* @param row Screen position relative to viewport	430	* @param row Screen position relative to viewport
434	* @param col Screen position relative to viewport	431	* @param col Screen position relative to viewport
435	*/	432	*/
436	static void draw_char(int vp, char c, unsigned int row, unsigned int col, style_t style)	433	static void draw_char(int vp, char c, unsigned int row, unsigned int col, style_t style)
437	{	434	{
438	viewport_t *vport = &viewports[vp];	435	viewport_t *vport = &viewports[vp];
439		436
440	/* Optimize - do not hide cursor if we are going to overwrite it */	437	/* Optimize - do not hide cursor if we are going to overwrite it */
441	if (vport->cursor_active && vport->cursor_shown &&	438	if (vport->cursor_active && vport->cursor_shown &&
442	(vport->cur_col != col \|\| vport->cur_row != row))	439	(vport->cur_col != col \|\| vport->cur_row != row))
443	invert_char(vp, vport->cur_row, vport->cur_col);	440	invert_char(vp, vport->cur_row, vport->cur_col);
444		441
445	draw_glyph(vp, c, col * COL_WIDTH, row * FONT_SCANLINES, style);	442	draw_glyph(vp, c, col * COL_WIDTH, row * FONT_SCANLINES, style);
446		443
447	vport->cur_col = col;	444	vport->cur_col = col;
448	vport->cur_row = row;	445	vport->cur_row = row;
449		446
450	vport->cur_col++;	447	vport->cur_col++;
451	if (vport->cur_col>= vport->cols) {	448	if (vport->cur_col>= vport->cols) {
452	vport->cur_col = 0;	449	vport->cur_col = 0;
453	vport->cur_row++;	450	vport->cur_row++;
454	if (vport->cur_row >= vport->rows)	451	if (vport->cur_row >= vport->rows)
455	vport->cur_row--;	452	vport->cur_row--;
456	}	453	}
457	cursor_print(vp);	454	cursor_print(vp);
458	}	455	}
459		456
-		457	/** Draw text data to viewport
-		458	*
-		459	* @param vp Viewport id
-		460	* @param data Text data fitting exactly into viewport
-		461	*/
460	static void draw_text_data(int vp, keyfield_t *data)	462	static void draw_text_data(int vp, keyfield_t *data)
461	{	463	{
462	viewport_t *vport = &viewports[vp];	464	viewport_t *vport = &viewports[vp];
463	int i;	465	int i;
464	char c;	466	char c;
465	int col,row;	467	int col,row;
466		468
467	clear_port(vp);	469	clear_port(vp);
468	for (i=0; i < vport->cols * vport->rows; i++) {	470	for (i=0; i < vport->cols * vport->rows; i++) {
469	if (data[i].character == ' ' && style_same(data[i].style,vport->style))	471	if (data[i].character == ' ' && style_same(data[i].style,vport->style))
470	continue;	472	continue;
471	col = i % vport->cols;	473	col = i % vport->cols;
472	row = i / vport->cols;	474	row = i / vport->cols;
473	draw_glyph(vp, data[i].character, col * COL_WIDTH, row * FONT_SCANLINES, data[i].style);	475	draw_glyph(vp, data[i].character, col * COL_WIDTH, row * FONT_SCANLINES, data[i].style);
474	}	476	}
475	cursor_print(vp);	477	cursor_print(vp);
476	}	478	}
477		479
-		480	/** Handle shared memory communication calls
-		481	*
-		482	* Protocol for drawing pixmaps:

Subversion Repositories HelenOS-historic

(root)/uspace/trunk/fb/fb.c @ 1711 – Rev 1547 → 1552