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/*
* 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.
*/
/** @defgroup fbs Framebuffers
* @brief HelenOS framebuffers.
* @{
* @}
*/
/** @defgroup fb Framebuffer
* @brief HelenOS framebuffer.
* @ingroup fbs
* @{
*/
/** @file
*/
#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 "fb.h"
#include "main.h"
#include "../console/screenbuffer.h"
#include "ppm.h"
#define DEFAULT_BGCOLOR 0xf0f0f0
#define DEFAULT_FGCOLOR 0x0
/***************************************************************/
/* Pixel specific fuctions */
typedef void (*conv2scr_fn_t)(void *, int);
typedef int (*conv2rgb_fn_t)(void *);
struct {
__u8 *fbaddress ;
unsigned int xres ;
unsigned int yres ;
unsigned int scanline ;
unsigned int pixelbytes ;
conv2scr_fn_t rgb2scr;
conv2rgb_fn_t scr2rgb;
} 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_ANIM_LEN 8
#define MAX_ANIMATIONS 4
typedef struct {
int initialized;
int enabled;
unsigned int vp;
unsigned int pos;
unsigned int animlen;
unsigned int pixmaps[MAX_ANIM_LEN];
} animation_t;
static animation_t animations[MAX_ANIMATIONS];
static int anims_enabled;
/** Maximum number of saved pixmaps
* Pixmap is a saved rectangle
*/
#define MAX_PIXMAPS 256
typedef struct {
unsigned int width;
unsigned int height;
__u8 *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)
/* Conversion routines between different color representations */
static void rgb_4byte(void *dst, int rgb)
{
*(int *)dst = rgb;
}
static int byte4_rgb(void *src)
{
return (*(int *)src) & 0xffffff;
}
static void rgb_3byte(void *dst, int rgb)
{
__u8 *scr = dst;
#if (defined(BIG_ENDIAN) || defined(FB_BIG_ENDIAN))
scr[0] = RED(rgb, 8);
scr[1] = GREEN(rgb, 8);
scr[2] = BLUE(rgb, 8);
#else
scr[2] = RED(rgb, 8);
scr[1] = GREEN(rgb, 8);
scr[0] = BLUE(rgb, 8);
#endif
}
static int byte3_rgb(void *src)
{
__u8 *scr = src;
#if (defined(BIG_ENDIAN) || defined(FB_BIG_ENDIAN))
return scr[0] << 16 | scr[1] << 8 | scr[2];
#else
return scr[2] << 16 | scr[1] << 8 | scr[0];
#endif
}
/** 16-bit depth (5:6:5) */
static void rgb_2byte(void *dst, int rgb)
{
/* 5-bit, 6-bits, 5-bits */
*((__u16 *)(dst)) = RED(rgb, 5) << 11 | GREEN(rgb, 6) << 5 | BLUE(rgb, 5);
}
/** 16-bit depth (5:6:5) */
static int byte2_rgb(void *src)
{
int color = *(__u16 *)(src);
return (((color >> 11) & 0x1f) << (16 + 3)) | (((color >> 5) & 0x3f) << (8 + 2)) | ((color & 0x1f) << 3);
}
/** Put pixel - 8-bit depth (3:2:3) */
static void rgb_1byte(void *dst, int rgb)
{
*(__u8 *)dst = RED(rgb, 3) << 5 | GREEN(rgb, 2) << 3 | BLUE(rgb, 3);
}
/** Return pixel color - 8-bit depth (3:2:3) */
static int byte1_rgb(void *src)
{
int color = *(__u8 *)src;
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)
{
int dx = viewports[vp].x + x;
int dy = viewports[vp].y + y;
(*screen.rgb2scr)(&screen.fbaddress[POINTPOS(dx,dy)],color);
}
/** Get pixel from viewport */
static int getpixel(int vp, unsigned int x, unsigned int y)
{
int dx = viewports[vp].x + x;
int dy = viewports[vp].y + y;
return (*screen.scr2rgb)(&screen.fbaddress[POINTPOS(dx,dy)]);
}
/** 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);
}
static void draw_rectangle(int vp, unsigned int sx, unsigned int sy,
unsigned int width, unsigned int height,
int color)
{
unsigned int x, y;
/* Clear first line */
for (x = 0; x < width; x++)
putpixel(vp, sx + x, sy, color);
/* Recompute to screen coords */
sx += viewports[vp].x;
sy += viewports[vp].y;
/* Copy the rest */
for (y = sy+1;y < sy+height; y++)
memcpy(&screen.fbaddress[POINTPOS(sx,y)],
&screen.fbaddress[POINTPOS(sx,sy)],
screen.pixelbytes * width);
}
/** Fill viewport with background color */
static void clear_port(int vp)
{
viewport_t *vport = &viewports[vp];
draw_rectangle(vp, 0, 0, vport->width, vport->height, vport->style.bg_color);
}
/** 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;
viewport_t *vport = &viewports[vp];
if (rows > 0) {
for (y=vport->y; y < vport->y+vport->height - rows*FONT_SCANLINES; y++)
memcpy(&screen.fbaddress[POINTPOS(vport->x,y)],
&screen.fbaddress[POINTPOS(vport->x,y + rows*FONT_SCANLINES)],
screen.pixelbytes * vport->width);
draw_rectangle(vp, 0, FONT_SCANLINES*(vport->rows - 1),
vport->width, FONT_SCANLINES, vport->style.bg_color);
} else if (rows < 0) {
rows = -rows;
for (y=vport->y + vport->height-1; y >= vport->y + rows*FONT_SCANLINES; y--)
memcpy(&screen.fbaddress[POINTPOS(vport->x,y)],
&screen.fbaddress[POINTPOS(vport->x,y - rows*FONT_SCANLINES)],
screen.pixelbytes * vport->width);
draw_rectangle(vp, 0, 0, vport->width, FONT_SCANLINES, vport->style.bg_color);
}
}
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
*
* @param vp Viewport where the character is printed
* @param sx Coordinates of top-left of the character
* @param sy Coordinates of top-left of the character
* @param style Color of the character
* @param transparent If false, print background color
*/
static void draw_glyph(int vp,__u8 glyph, unsigned int sx, unsigned int sy,
style_t style, int transparent)
{
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 if (!transparent)
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.rgb2scr = rgb_1byte;
screen.scr2rgb = byte1_rgb;
screen.pixelbytes = 1;
break;
case 16:
screen.rgb2scr = rgb_2byte;
screen.scr2rgb = byte2_rgb;
screen.pixelbytes = 2;
break;
case 24:
screen.rgb2scr = rgb_3byte;
screen.scr2rgb = byte3_rgb;
screen.pixelbytes = 3;
break;
case 32:
screen.rgb2scr = rgb_4byte;
screen.scr2rgb = byte4_rgb;
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
* @param transparent If false, print background color with character
*/
static void draw_char(int vp, char c, unsigned int row, unsigned int col, style_t style, int transparent)
{
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, transparent);
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, style_same(data[i].style,vport->style));
}
cursor_print(vp);
}
/** 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;
}
static void putpixel_pixmap(int pm, unsigned int x, unsigned int y, int color)
{
pixmap_t *pmap = &pixmaps[pm];
int pos = (y * pmap->width + x) * screen.pixelbytes;
(*screen.rgb2scr)(&pmap->data[pos],color);
}
/** Create a new pixmap and return appropriate ID */
static int shm2pixmap(char *shm, size_t size)
{
int pm;
pixmap_t *pmap;
pm = find_free_pixmap();
if (pm == -1)
return ELIMIT;
pmap = &pixmaps[pm];
if (ppm_get_data(shm, size, &pmap->width, &pmap->height))
return EINVAL;
pmap->data = malloc(pmap->width * pmap->height * screen.pixelbytes);
if (!pmap->data)
return ENOMEM;
ppm_draw(shm, size, 0, 0, pmap->width, pmap->height,
putpixel_pixmap, pm);
return pm;
}
/** 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 *shm = NULL;
static ipcarg_t shm_id = 0;
static size_t shm_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) == shm_id) {
void *dest = as_get_mappable_page(IPC_GET_ARG2(*call));
shm_size = IPC_GET_ARG2(*call);
if (!ipc_answer_fast(callid, 0, (sysarg_t)dest, 0))
shm = dest;
else
shm_id = 0;
if (shm[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 (shm_id)
retval = EBUSY;
else
shm_id = IPC_GET_ARG1(*call);
break;
case FB_DROP_SHM:
if (shm) {
as_area_destroy(shm);
shm = NULL;
}
shm_id = 0;
break;
case FB_SHM2PIXMAP:
if (!shm) {
retval = EINVAL;
break;
}
retval = shm2pixmap(shm, shm_size);
break;
case FB_DRAW_PPM:
if (!shm) {
retval = EINVAL;
break;
}
x = IPC_GET_ARG1(*call);
y = IPC_GET_ARG2(*call);
if (x > vport->width || y > vport->height) {
retval = EINVAL;
break;
}
ppm_draw(shm, shm_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;
}
/** 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);
}
return 0;
}
/** Tick animation one step forward */
static void anims_tick(void)
{
int i;
static int counts = 0;
/* Limit redrawing */
counts = (counts+1) % 8;
if (counts)
return;
for (i=0; i < MAX_ANIMATIONS; i++) {
if (!animations[i].animlen || !animations[i].initialized || !animations[i].enabled)
continue;
draw_pixmap(animations[i].vp, animations[i].pixmaps[animations[i].pos]);
animations[i].pos = (animations[i].pos+1) % animations[i].animlen;
}
}
static int anim_handle(ipc_callid_t callid, ipc_call_t *call, int vp)
{
int handled = 1;
int retval = 0;
int i,nvp;
int newval;
switch (IPC_GET_METHOD(*call)) {
case FB_ANIM_CREATE:
nvp = IPC_GET_ARG1(*call);
if (nvp == -1)
nvp = vp;
if (nvp >= MAX_VIEWPORTS || nvp < 0 || !viewports[nvp].initialized) {
retval = EINVAL;
break;
}
for (i=0; i < MAX_ANIMATIONS; i++) {
if (! animations[i].initialized)
break;
}
if (i == MAX_ANIMATIONS) {
retval = ELIMIT;
break;
}
animations[i].initialized = 1;
animations[i].animlen = 0;
animations[i].pos = 0;
animations[i].enabled = 0;
animations[i].vp = nvp;
retval = i;
break;
case FB_ANIM_DROP:
i = IPC_GET_ARG1(*call);
if (nvp >= MAX_ANIMATIONS || i < 0) {
retval = EINVAL;
break;
}
animations[i].initialized = 0;
break;
case FB_ANIM_ADDPIXMAP:
i = IPC_GET_ARG1(*call);
if (i >= MAX_ANIMATIONS || i < 0 || !animations[i].initialized) {
retval = EINVAL;
break;
}
if (animations[i].animlen == MAX_ANIM_LEN) {
retval = ELIMIT;
break;
}
newval = IPC_GET_ARG2(*call);
if (newval < 0 || newval > MAX_PIXMAPS || !pixmaps[newval].data) {
retval = EINVAL;
break;
}
animations[i].pixmaps[animations[i].animlen++] = newval;
break;
case FB_ANIM_CHGVP:
i = IPC_GET_ARG1(*call);
if (i >= MAX_ANIMATIONS || i < 0) {
retval = EINVAL;
break;
}
nvp = IPC_GET_ARG2(*call);
if (nvp == -1)
nvp = vp;
if (nvp >= MAX_VIEWPORTS || nvp < 0 || !viewports[nvp].initialized) {
retval = EINVAL;
break;
}
animations[i].vp = nvp;
break;
case FB_ANIM_START:
case FB_ANIM_STOP:
i = IPC_GET_ARG1(*call);
if (i >= MAX_ANIMATIONS || i < 0) {
retval = EINVAL;
break;
}
newval = (IPC_GET_METHOD(*call) == FB_ANIM_START);
if (newval ^ animations[i].enabled) {
animations[i].enabled = newval;
anims_enabled += newval ? 1 : -1;
}
break;
default:
handled = 0;
}
if (handled)
ipc_answer_fast(callid, retval, 0, 0);
return handled;
}
/** 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) {
if (vport->cursor_active || anims_enabled)
callid = async_get_call_timeout(&call,250000);
else
callid = async_get_call(&call);
if (!callid) {
cursor_blink(vp);
anims_tick();
continue;
}
if (shm_handle(callid, &call, vp))
continue;
if (pixmap_handle(callid, &call, vp))
continue;
if (anim_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;
return; /* Exit thread */
case FB_PUTCHAR:
case FB_TRANS_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, IPC_GET_METHOD(call) == FB_TRANS_PUTCHAR);
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;
}
/**
* @}
*/