gcons.c

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/*
 * 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 <ipc/fb.h>
#include <ipc/ipc.h>
#include <async.h>
#include <stdio.h>
#include <sys/mman.h>
#include <string.h>
#include <align.h>

#include "console.h"
#include "gcons.h"

#define CONSOLE_TOP      66
#define CONSOLE_MARGIN   6

#define STATUS_START    110
#define STATUS_TOP      8
#define STATUS_SPACE    4
#define STATUS_WIDTH    48
#define STATUS_HEIGHT   48

#define MAIN_COLOR      0xffffff

static int use_gcons = 0;
static ipcarg_t xres,yres;

enum butstate {
        CONS_DISCONNECTED = 0,
        CONS_SELECTED,
        CONS_IDLE,
        CONS_HAS_DATA,
        CONS_KERNEL,
        CONS_DISCONNECTED_SEL,
        CONS_LAST
};

static int console_vp;
static int cstatus_vp[CONSOLE_COUNT];
static enum butstate console_state[CONSOLE_COUNT];

static int fbphone;

static int ic_pixmaps[CONS_LAST] = {-1,-1,-1,-1,-1,-1};
static int animation = -1;

static int active_console = 0;

static void vp_switch(int vp)
{
        async_msg(fbphone,FB_VIEWPORT_SWITCH, vp);
}

static int vp_create(unsigned int x, unsigned int y, 
                     unsigned int width, unsigned int height)
{
        return async_req_2(fbphone, FB_VIEWPORT_CREATE,
                           (x << 16) | y, (width << 16) | height,
                           NULL, NULL);
}

static void clear(void)
{
        async_msg(fbphone, FB_CLEAR, 0);
        
}

static void set_style(int fgcolor, int bgcolor)
{
        async_msg_2(fbphone, FB_SET_STYLE, fgcolor, bgcolor);
}

static void tran_putch(char c, int row, int col)
{
        async_msg_3(fbphone, FB_TRANS_PUTCHAR, c, row, col);
}

static void redraw_state(int consnum)
{
        char data[5];
        int i;
        enum butstate state = console_state[consnum];

        vp_switch(cstatus_vp[consnum]);
        if (ic_pixmaps[state] != -1)
                async_msg_2(fbphone, FB_VP_DRAW_PIXMAP, cstatus_vp[consnum], ic_pixmaps[state]);

        if (state != CONS_DISCONNECTED && state != CONS_KERNEL && state != CONS_DISCONNECTED_SEL) {
                snprintf(data, 5, "%d", consnum+1);
                for (i=0;data[i];i++)
                        tran_putch(data[i], 1, 2+i);
        }
}

void gcons_change_console(int consnum)
{
        int i;

        if (!use_gcons)
                return;

        if (active_console == KERNEL_CONSOLE) {
                for (i=0; i < CONSOLE_COUNT; i++)
                        redraw_state(i);
                if (animation != -1)
                        async_msg(fbphone, FB_ANIM_START, animation);
        } else {
                if (console_state[active_console] == CONS_DISCONNECTED_SEL)
                        console_state[active_console] = CONS_DISCONNECTED;
                else
                        console_state[active_console] = CONS_IDLE;
                redraw_state(active_console);
        }
        active_console = consnum;

        if (console_state[consnum] == CONS_DISCONNECTED) {
                console_state[consnum] = CONS_DISCONNECTED_SEL;
                redraw_state(consnum);
        } else
                console_state[consnum] = CONS_SELECTED;
        redraw_state(consnum);

        vp_switch(console_vp);
}

void gcons_notify_char(int consnum)
{
        if (!use_gcons)
                return;

        if (consnum == active_console || console_state[consnum] == CONS_HAS_DATA)
                return;

        console_state[consnum] = CONS_HAS_DATA;

        if (active_console == KERNEL_CONSOLE)
                return;

        redraw_state(consnum);
        
        vp_switch(console_vp);
}

void gcons_notify_disconnect(int consnum)
{
        if (!use_gcons)
                return;
        if (active_console == consnum)
                console_state[consnum] = CONS_DISCONNECTED_SEL;
        else
                console_state[consnum] = CONS_DISCONNECTED;

        if (active_console == KERNEL_CONSOLE)
                return;

        redraw_state(consnum);
        vp_switch(console_vp);
}

void gcons_notify_connect(int consnum)
{
        if (!use_gcons)
                return;
        if (active_console == consnum)
                console_state[consnum] = CONS_SELECTED;
        else
                console_state[consnum] = CONS_IDLE;

        if (active_console == KERNEL_CONSOLE)
                return;

        redraw_state(consnum);
        vp_switch(console_vp);
}

void gcons_in_kernel(void)
{
        if (console_state[active_console] == CONS_DISCONNECTED_SEL)
                console_state[active_console] = CONS_DISCONNECTED;
        else
                console_state[active_console] = CONS_IDLE;
        redraw_state(active_console);

        if (animation != -1)
                async_msg(fbphone, FB_ANIM_STOP, animation);

        active_console = KERNEL_CONSOLE; /* Set to kernel console */
        vp_switch(0);
}


static inline int limit(int a,int left, int right)
{
        if (a < left)
                a = left;
        if (a >= right)
                a = right - 1;
        return a;
}

int mouse_x, mouse_y;
int btn_pressed, btn_x, btn_y;

void gcons_mouse_move(int dx, int dy)
{
        mouse_x = limit(mouse_x+dx, 0, xres);
        mouse_y = limit(mouse_y+dy, 0, yres);

        async_msg_2(fbphone, FB_POINTER_MOVE, mouse_x, mouse_y);
}

static int gcons_find_conbut(int x, int y)
{
        int status_start = STATUS_START + (xres-800) / 2;;

        if (y < STATUS_TOP || y >= STATUS_TOP+STATUS_HEIGHT)
                return -1;
        
        if (x < status_start)
                return -1;
        
        if (x >= status_start + (STATUS_WIDTH+STATUS_SPACE)*CONSOLE_COUNT)
                return -1;
        if (((x - status_start) % (STATUS_WIDTH+STATUS_SPACE)) < STATUS_SPACE)
                return -1;
        
        return (x-status_start) / (STATUS_WIDTH+STATUS_SPACE);
}

int gcons_mouse_btn(int state)
{
        int conbut;

        if (state) {
                conbut = gcons_find_conbut(mouse_x, mouse_y);
                if (conbut != -1) {
                        btn_pressed = 1;
                        btn_x = mouse_x;
                        btn_y = mouse_y;
                }
                return -1;
        } 
        if (!state && !btn_pressed)
                return -1;
        btn_pressed = 0;

        conbut = gcons_find_conbut(mouse_x, mouse_y);
        if (conbut == gcons_find_conbut(btn_x, btn_y))
                return conbut;
        return -1;
}


static void draw_pixmap(char *logo, size_t size, int x, int y)
{
        char *shm;
        int rc;

        /* Create area */
        shm = mmap(NULL, size, PROTO_READ | PROTO_WRITE, MAP_SHARED | MAP_ANONYMOUS, 0, 0);
        if (shm == MAP_FAILED)
                return;

        memcpy(shm, logo, size);
        /* Send area */
        rc = async_req_2(fbphone, FB_PREPARE_SHM, (ipcarg_t)shm, 0, NULL, NULL);
        if (rc)
                goto exit;
        rc = async_req_3(fbphone, IPC_M_AS_AREA_SEND, (ipcarg_t)shm, 0, PROTO_READ, NULL, NULL, NULL);
        if (rc)
                goto drop;
        /* Draw logo */
        async_msg_2(fbphone, FB_DRAW_PPM, x, y);
drop:
        /* Drop area */
        async_msg(fbphone, FB_DROP_SHM, 0);
exit:       
        /* Remove area */
        munmap(shm, size);
}

extern char _binary_helenos_ppm_start[0];
extern int _binary_helenos_ppm_size;
extern char _binary_nameic_ppm_start[0];
extern int _binary_nameic_ppm_size;
static void gcons_redraw_console(void)
{
        int i;

        if (!use_gcons)
                return;
        
        vp_switch(0);
        set_style(MAIN_COLOR, MAIN_COLOR);
        clear();
        draw_pixmap(_binary_helenos_ppm_start, (size_t)&_binary_helenos_ppm_size, xres-66, 2);
        draw_pixmap(_binary_nameic_ppm_start, (size_t)&_binary_nameic_ppm_size, 5, 17);

        for (i=0;i < CONSOLE_COUNT; i++) 
                redraw_state(i);
        vp_switch(console_vp);
}

static int make_pixmap(char *data, int size)
{
        char *shm;
        int rc;
        int pxid = -1;

        /* Create area */
        shm = mmap(NULL, size, PROTO_READ | PROTO_WRITE, MAP_SHARED | MAP_ANONYMOUS, 0, 0);
        if (shm == MAP_FAILED)
                return -1;

        memcpy(shm, data, size);
        /* Send area */
        rc = async_req_2(fbphone, FB_PREPARE_SHM, (ipcarg_t)shm, 0, NULL, NULL);
        if (rc)
                goto exit;
        rc = async_req_3(fbphone, IPC_M_AS_AREA_SEND, (ipcarg_t)shm, 0, PROTO_READ, NULL, NULL, NULL);
        if (rc)
                goto drop;

        /* Obtain pixmap */
        rc = async_req(fbphone, FB_SHM2PIXMAP, 0, NULL);
        if (rc < 0)
                goto drop;
        pxid = rc;
drop:
        /* Drop area */
        async_msg(fbphone, FB_DROP_SHM, 0);
exit:       
        /* Remove area */
        munmap(shm, size);

        return pxid;
}

extern char _binary_anim_1_ppm_start[0];
extern int _binary_anim_1_ppm_size;
extern char _binary_anim_2_ppm_start[0];
extern int _binary_anim_2_ppm_size;
extern char _binary_anim_3_ppm_start[0];
extern int _binary_anim_3_ppm_size;
extern char _binary_anim_4_ppm_start[0];
extern int _binary_anim_4_ppm_size;
static void make_anim(void)
{
        int an;
        int pm;

        an = async_req(fbphone, FB_ANIM_CREATE, cstatus_vp[KERNEL_CONSOLE], NULL);
        if (an < 0)
                return;

        pm = make_pixmap(_binary_anim_1_ppm_start, (int)&_binary_anim_1_ppm_size);
        async_msg_2(fbphone, FB_ANIM_ADDPIXMAP, an, pm);

        pm = make_pixmap(_binary_anim_2_ppm_start, (int)&_binary_anim_2_ppm_size);
        async_msg_2(fbphone, FB_ANIM_ADDPIXMAP, an, pm);

        pm = make_pixmap(_binary_anim_3_ppm_start, (int)&_binary_anim_3_ppm_size);
        async_msg_2(fbphone, FB_ANIM_ADDPIXMAP, an, pm);

        pm = make_pixmap(_binary_anim_4_ppm_start, (int)&_binary_anim_4_ppm_size);
        async_msg_2(fbphone, FB_ANIM_ADDPIXMAP, an, pm);

        async_msg(fbphone, FB_ANIM_START, an);

        animation = an;
}

extern char _binary_cons_selected_ppm_start[0];
extern int _binary_cons_selected_ppm_size;
extern char _binary_cons_idle_ppm_start[0];
extern int _binary_cons_idle_ppm_size;
extern char _binary_cons_has_data_ppm_start[0];
extern int _binary_cons_has_data_ppm_size;
extern char _binary_cons_kernel_ppm_start[0];
extern int _binary_cons_kernel_ppm_size;
void gcons_init(int phone)
{
        int rc;
        int i;
        int status_start = STATUS_START;

        fbphone = phone;

        rc = async_req_2(phone, FB_GET_RESOLUTION, 0, 0, &xres, &yres);
        if (rc)
                return;
        
        if (xres < 800 || yres < 600)
                return;

        /* create console viewport */
        /* Align width & height to character size */
        console_vp = vp_create(CONSOLE_MARGIN, CONSOLE_TOP, 
                               ALIGN_DOWN(xres-2*CONSOLE_MARGIN, 8),
                               ALIGN_DOWN(yres-(CONSOLE_TOP+CONSOLE_MARGIN),16));
        if (console_vp < 0)
                return;
        
        /* Create status buttons */
        status_start += (xres-800) / 2;
        for (i=0; i < CONSOLE_COUNT; i++) {
                cstatus_vp[i] = vp_create(status_start+CONSOLE_MARGIN+i*(STATUS_WIDTH+STATUS_SPACE),
                                          STATUS_TOP, STATUS_WIDTH, STATUS_HEIGHT);
                if (cstatus_vp[i] < 0)
                        return;
                vp_switch(cstatus_vp[i]);
                set_style(0x202020, 0xffffff);
        }
        
        /* Initialize icons */
        ic_pixmaps[CONS_SELECTED] = make_pixmap(_binary_cons_selected_ppm_start,
                                              (int)&_binary_cons_selected_ppm_size);
        ic_pixmaps[CONS_IDLE] = make_pixmap(_binary_cons_idle_ppm_start,
                                              (int)&_binary_cons_idle_ppm_size);
        ic_pixmaps[CONS_HAS_DATA] = make_pixmap(_binary_cons_has_data_ppm_start,
                                                (int)&_binary_cons_has_data_ppm_size);
        ic_pixmaps[CONS_DISCONNECTED] = make_pixmap(_binary_cons_idle_ppm_start,
                                              (int)&_binary_cons_idle_ppm_size);
        ic_pixmaps[CONS_KERNEL] = make_pixmap(_binary_cons_kernel_ppm_start,
                                              (int)&_binary_cons_kernel_ppm_size);
        ic_pixmaps[CONS_DISCONNECTED_SEL] = ic_pixmaps[CONS_SELECTED];
        
        make_anim();

        use_gcons = 1;
        console_state[0] = CONS_DISCONNECTED_SEL;
        console_state[KERNEL_CONSOLE] = CONS_KERNEL;
        gcons_redraw_console();
}
 

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