0,0 → 1,1245 |
/* |
* 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 fb Graphical framebuffer |
* @brief HelenOS graphical 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" |
|
#include "pointer.xbm" |
#include "pointer_mask.xbm" |
|
#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; |
/* Double buffering */ |
__u8 *dbdata; |
unsigned int dboffset; |
unsigned int paused; |
} 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 vport Viewport identification |
* @param x X coord relative to viewport |
* @param y Y coord relative to viewport |
* @param color RGB color |
*/ |
static void putpixel(viewport_t *vport, unsigned int x, unsigned int y, int color) |
{ |
int dx = vport->x + x; |
int dy = vport->y + y; |
|
if (! (vport->paused && vport->dbdata)) |
(*screen.rgb2scr)(&screen.fbaddress[POINTPOS(dx,dy)],color); |
|
if (vport->dbdata) { |
int dline = (y + vport->dboffset) % vport->height; |
int doffset = screen.pixelbytes * (dline * vport->width + x); |
(*screen.rgb2scr)(&vport->dbdata[doffset],color); |
} |
} |
|
/** Get pixel from viewport */ |
static int getpixel(viewport_t *vport, unsigned int x, unsigned int y) |
{ |
int dx = vport->x + x; |
int dy = vport->y + y; |
|
return (*screen.scr2rgb)(&screen.fbaddress[POINTPOS(dx,dy)]); |
} |
|
static inline void putpixel_mem(char *mem, unsigned int x, unsigned int y, |
int color) |
{ |
(*screen.rgb2scr)(&mem[POINTPOS(x,y)],color); |
} |
|
static void draw_rectangle(viewport_t *vport, unsigned int sx, unsigned int sy, |
unsigned int width, unsigned int height, |
int color) |
{ |
unsigned int x, y; |
static void *tmpline; |
|
if (!tmpline) |
tmpline = malloc(screen.scanline*screen.pixelbytes); |
|
/* Clear first line */ |
for (x = 0; x < width; x++) |
putpixel_mem(tmpline, x, 0, color); |
|
if (!vport->paused) { |
/* Recompute to screen coords */ |
sx += vport->x; |
sy += vport->y; |
/* Copy the rest */ |
for (y = sy;y < sy+height; y++) |
memcpy(&screen.fbaddress[POINTPOS(sx,y)], tmpline, |
screen.pixelbytes * width); |
} |
if (vport->dbdata) { |
for (y=sy;y < sy+height; y++) { |
int rline = (y + vport->dboffset) % vport->height; |
int rpos = (rline * vport->width + sx) * screen.pixelbytes; |
memcpy(&vport->dbdata[rpos], tmpline, screen.pixelbytes * width); |
} |
} |
|
} |
|
/** Fill viewport with background color */ |
static void clear_port(viewport_t *vport) |
{ |
draw_rectangle(vport, 0, 0, vport->width, vport->height, vport->style.bg_color); |
} |
|
/** Scroll unbuffered viewport up/down |
* |
* @param vport Viewport to scroll |
* @param lines Positive number - scroll up, negative - scroll down |
*/ |
static void scroll_port_nodb(viewport_t *vport, int lines) |
{ |
int y; |
|
if (lines > 0) { |
for (y=vport->y; y < vport->y+vport->height - lines; y++) |
memcpy(&screen.fbaddress[POINTPOS(vport->x,y)], |
&screen.fbaddress[POINTPOS(vport->x,y + lines)], |
screen.pixelbytes * vport->width); |
draw_rectangle(vport, 0, vport->height - lines, |
vport->width, lines, vport->style.bg_color); |
} else if (lines < 0) { |
lines = -lines; |
for (y=vport->y + vport->height-1; y >= vport->y + lines; y--) |
memcpy(&screen.fbaddress[POINTPOS(vport->x,y)], |
&screen.fbaddress[POINTPOS(vport->x,y - lines)], |
screen.pixelbytes * vport->width); |
draw_rectangle(vport, 0, 0, vport->width, lines, vport->style.bg_color); |
} |
} |
|
/** Refresh given viewport from double buffer */ |
static void refresh_viewport_db(viewport_t *vport) |
{ |
unsigned int y, srcy, srcoff, dsty, dstx; |
|
for (y = 0; y < vport->height; y++) { |
srcy = (y + vport->dboffset) % vport->height; |
srcoff = (vport->width * srcy) * screen.pixelbytes; |
|
dstx = vport->x; |
dsty = vport->y + y; |
|
memcpy(&screen.fbaddress[POINTPOS(dstx,dsty)], |
&vport->dbdata[srcoff], |
vport->width*screen.pixelbytes); |
} |
} |
|
/** Scroll viewport that has double buffering enabled */ |
static void scroll_port_db(viewport_t *vport, int lines) |
{ |
++vport->paused; |
if (lines > 0) { |
draw_rectangle(vport, 0, 0, vport->width, lines, |
vport->style.bg_color); |
vport->dboffset += lines; |
vport->dboffset %= vport->height; |
} else if (lines < 0) { |
lines = -lines; |
draw_rectangle(vport, 0, vport->height-lines, |
vport->width, lines, |
vport->style.bg_color); |
|
if (vport->dboffset < lines) |
vport->dboffset += vport->height; |
vport->dboffset -= lines; |
} |
|
--vport->paused; |
|
refresh_viewport_db(vport); |
} |
|
/** Scrolls viewport given number of lines */ |
static void scroll_port(viewport_t *vport, int lines) |
{ |
if (vport->dbdata) |
scroll_port_db(vport, lines); |
else |
scroll_port_nodb(vport, lines); |
|
} |
|
static void invert_pixel(viewport_t *vport, unsigned int x, unsigned int y) |
{ |
putpixel(vport, x, y, ~getpixel(vport, x, y)); |
} |
|
|
/***************************************************************/ |
/* Character-console functions */ |
|
/** Draw character at given position |
* |
* @param vport 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(viewport_t *vport,__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(vport, sx + i, sy + y, style.fg_color); |
else if (!transparent) |
putpixel(vport, sx + i, sy + y, style.bg_color); |
} |
} |
} |
|
/** Invert character at given position */ |
static void invert_char(viewport_t *vport,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(vport, 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; |
|
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 xres Screen width in pixels |
* @param yres 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(viewport_t *vport) |
{ |
if (vport->cursor_active && vport->cursor_shown) { |
invert_char(vport, vport->cur_row, vport->cur_col); |
vport->cursor_shown = 0; |
} |
} |
|
/** Show cursor if cursor showing is enabled */ |
static void cursor_print(viewport_t *vport) |
{ |
/* Do not check for cursor_shown */ |
if (vport->cursor_active) { |
invert_char(vport, vport->cur_row, vport->cur_col); |
vport->cursor_shown = 1; |
} |
} |
|
/** Invert cursor, if it is enabled */ |
static void cursor_blink(viewport_t *vport) |
{ |
if (vport->cursor_shown) |
cursor_hide(vport); |
else |
cursor_print(vport); |
} |
|
/** Draw character at given position relative to viewport |
* |
* @param vport 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(viewport_t *vport, char c, unsigned int row, unsigned int col, |
style_t style, int transparent) |
{ |
/* 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(vport, vport->cur_row, vport->cur_col); |
|
draw_glyph(vport, 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(vport); |
} |
|
/** Draw text data to viewport |
* |
* @param vport Viewport id |
* @param data Text data fitting exactly into viewport |
*/ |
static void draw_text_data(viewport_t *vport, keyfield_t *data) |
{ |
int i; |
int col,row; |
|
clear_port(vport); |
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(vport, data[i].character, col * COL_WIDTH, row * FONT_SCANLINES, |
data[i].style, style_same(data[i].style,vport->style)); |
} |
cursor_print(vport); |
} |
|
|
/** 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(unsigned 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_cb_t)putpixel_pixmap, (void *)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 unsigned 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_cb_t)putpixel, vport); |
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(vport, interbuffer); |
break; |
default: |
handled = 0; |
} |
|
if (handled) |
ipc_answer_fast(callid, retval, 0, 0); |
return handled; |
} |
|
static void copy_vp_to_pixmap(viewport_t *vport, pixmap_t *pmap) |
{ |
int y; |
int rowsize; |
int tmp; |
int width = vport->width; |
int height = vport->height; |
|
if (width + vport->x > screen.xres) |
width = screen.xres - vport->x; |
if (height + vport->y > screen.yres) |
height = screen.yres - vport->y; |
|
rowsize = width * screen.pixelbytes; |
|
for (y=0;y < height; y++) { |
tmp = (vport->y + y) * screen.scanline + vport->x * screen.pixelbytes; |
memcpy(pmap->data + rowsize*y, screen.fbaddress + tmp, rowsize); |
} |
} |
|
/** Save viewport to pixmap */ |
static int save_vp_to_pixmap(viewport_t *vport) |
{ |
int pm; |
pixmap_t *pmap; |
|
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; |
|
copy_vp_to_pixmap(vport, pmap); |
|
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 y; |
int tmp, srcrowsize; |
int realwidth, realheight, realrowsize; |
int width = vport->width; |
int height = vport->height; |
|
if (width + vport->x > screen.xres) |
width = screen.xres - vport->x; |
if (height + vport->y > screen.yres) |
height = screen.yres - vport->y; |
|
if (!pmap->data) |
return EINVAL; |
|
realwidth = pmap->width <= width ? pmap->width : width; |
realheight = pmap->height <= height ? pmap->height : 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 pointer_x, pointer_y; |
static int pointer_shown, pointer_enabled; |
static int pointer_vport = -1; |
static int pointer_pixmap = -1; |
|
static void mouse_show(void) |
{ |
int i,j; |
int visibility; |
int color; |
int bytepos; |
|
if (pointer_shown || !pointer_enabled) |
return; |
|
/* Save image under the cursor */ |
if (pointer_vport == -1) { |
pointer_vport = viewport_create(pointer_x, pointer_y, pointer_width, pointer_height); |
if (pointer_vport < 0) |
return; |
} else { |
viewports[pointer_vport].x = pointer_x; |
viewports[pointer_vport].y = pointer_y; |
} |
|
if (pointer_pixmap == -1) |
pointer_pixmap = save_vp_to_pixmap(&viewports[pointer_vport]); |
else |
copy_vp_to_pixmap(&viewports[pointer_vport], &pixmaps[pointer_pixmap]); |
|
/* Draw cursor */ |
for (i=0; i < pointer_height; i++) |
for (j=0;j < pointer_width; j++) { |
bytepos = i*((pointer_width-1)/8+1) + j/8; |
visibility = pointer_mask_bits[bytepos] & (1 << (j % 8)); |
if (visibility) { |
color = pointer_bits[bytepos] & (1 << (j % 8)) ? 0 : 0xffffff; |
if (pointer_x+j < screen.xres && pointer_y+i < screen.yres) |
putpixel(&viewports[0], pointer_x+j, pointer_y+i, color); |
} |
} |
pointer_shown = 1; |
} |
|
static void mouse_hide(void) |
{ |
/* Restore image under the cursor */ |
if (pointer_shown) { |
draw_pixmap(pointer_vport, pointer_pixmap); |
pointer_shown = 0; |
} |
} |
|
static void mouse_move(unsigned int x, unsigned int y) |
{ |
mouse_hide(); |
pointer_x = x; |
pointer_y = y; |
mouse_show(); |
} |
|
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 (i >= 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(&viewports[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); |
|
mouse_hide(); |
if (!callid) { |
cursor_blink(vport); |
anims_tick(); |
mouse_show(); |
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(vport, c, row, col, vport->style, IPC_GET_METHOD(call) == FB_TRANS_PUTCHAR); |
continue; /* msg already answered */ |
case FB_CLEAR: |
clear_port(vport); |
cursor_print(vport); |
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(vport); |
vport->cur_col = col; |
vport->cur_row = row; |
cursor_print(vport); |
break; |
case FB_CURSOR_VISIBILITY: |
cursor_hide(vport); |
vport->cursor_active = IPC_GET_ARG1(call); |
cursor_print(vport); |
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(vport); |
scroll_port(vport, i*FONT_SCANLINES); |
cursor_print(vport); |
retval = 0; |
break; |
case FB_VIEWPORT_DB: |
/* Enable double buffering */ |
i = IPC_GET_ARG1(call); |
if (i == -1) |
i = vp; |
if (i < 0 || i >= MAX_VIEWPORTS) { |
retval = EINVAL; |
break; |
} |
if (! viewports[i].initialized ) { |
retval = EADDRNOTAVAIL; |
break; |
} |
viewports[i].dboffset = 0; |
if (IPC_GET_ARG2(call) == 1 && !viewports[i].dbdata) |
viewports[i].dbdata = malloc(screen.pixelbytes*viewports[i].width * viewports[i].height); |
else if (IPC_GET_ARG2(call) == 0 && viewports[i].dbdata) { |
free(viewports[i].dbdata); |
viewports[i].dbdata = NULL; |
} |
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(vport); |
vp = i; |
vport = &viewports[vp]; |
cursor_print(vport); |
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; |
if (viewports[i].dbdata) { |
free(viewports[i].dbdata); |
viewports[i].dbdata = NULL; |
} |
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; |
case FB_POINTER_MOVE: |
pointer_enabled = 1; |
mouse_move(IPC_GET_ARG1(call), IPC_GET_ARG2(call)); |
retval = 0; |
break; |
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; |
} |
|
|
/** |
* @} |
*/ |