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  1. /*
  2.  * Copyright (C) 2006 Jakub Vana
  3.  * Copyright (C) 2006 Ondrej Palkovsky
  4.  * All rights reserved.
  5.  *
  6.  * Redistribution and use in source and binary forms, with or without
  7.  * modification, are permitted provided that the following conditions
  8.  * are met:
  9.  *
  10.  * - Redistributions of source code must retain the above copyright
  11.  *   notice, this list of conditions and the following disclaimer.
  12.  * - Redistributions in binary form must reproduce the above copyright
  13.  *   notice, this list of conditions and the following disclaimer in the
  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
  16.  *   derived from this software without specific prior written permission.
  17.  *
  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
  20.  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
  21.  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
  22.  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  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
  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
  27.  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  28.  */
  29.  
  30. #include <stdio.h>
  31. #include <ddi.h>
  32. #include <task.h>
  33. #include <stdlib.h>
  34. #include <ddi.h>
  35. #include <sysinfo.h>
  36. #include <align.h>
  37. #include <as.h>
  38. #include <ipc/fb.h>
  39.  
  40.  
  41. #include <ipc/ipc.h>
  42. #include <ipc/services.h>
  43. #include <unistd.h>
  44. #include <stdlib.h>
  45. #include <ipc/ns.h>
  46.  
  47. #include <kernel/errno.h>
  48. #include <async.h>
  49.  
  50.  
  51. #include "font-8x16.h"
  52. #include <string.h>
  53.  
  54. #include "helenos.xbm"
  55. #include "fb.h"
  56.  
  57. #define EFB (-1)
  58.  
  59. #define DEFAULT_BGCOLOR     0x000080
  60. #define DEFAULT_FGCOLOR     0xffff00
  61. #define DEFAULT_LOGOCOLOR   0x0000ff
  62.  
  63. #define MAIN_BGCOLOR        0x404000
  64. #define MAIN_FGCOLOR        0x000000
  65. #define MAIN_LOGOCOLOR  0x404000
  66.  
  67. #define SPACING (2)
  68.  
  69. #define H_NO_VFBS 3
  70. #define V_NO_VFBS 3
  71.  
  72.  
  73. static void fb_putchar(int item,char ch);
  74. int create_window(int item,unsigned int x, unsigned int y,unsigned int x_size, unsigned int y_size,
  75.     unsigned int BGCOLOR,unsigned int FGCOLOR,unsigned int LOGOCOLOR);
  76. void fb_init(int item,__address addr, unsigned int x, unsigned int y, unsigned int bpp, unsigned int scan,
  77.     unsigned int BGCOLOR,unsigned int FGCOLOR,unsigned int LOGOCOLOR);
  78.  
  79.  
  80. unsigned int mod_col(unsigned int col,int mod);
  81.  
  82.  
  83.  
  84. static int init_fb(void)
  85. {
  86.     __address fb_ph_addr;
  87.     unsigned int fb_width;
  88.     unsigned int fb_height;
  89.     unsigned int fb_bpp;
  90.     unsigned int fb_scanline;
  91.     __address fb_addr;
  92.     int a=0;
  93.     int i,j,k;
  94.     int w;
  95.     char text[]="HelenOS Framebuffer driver\non Virtual Framebuffer\nVFB ";
  96.  
  97.     fb_ph_addr=sysinfo_value("fb.address.physical");
  98.     fb_width=sysinfo_value("fb.width");
  99.     fb_height=sysinfo_value("fb.height");
  100.     fb_bpp=sysinfo_value("fb.bpp");
  101.     fb_scanline=sysinfo_value("fb.scanline");
  102.  
  103.     fb_addr=ALIGN_UP(((__address)set_maxheapsize(USER_ADDRESS_SPACE_SIZE_ARCH>>1)),PAGE_SIZE);
  104.  
  105.  
  106.    
  107.     map_physmem(task_get_id(),(void *)((__address)fb_ph_addr),(void *)fb_addr,
  108.             (fb_scanline*fb_height+PAGE_SIZE-1)>>PAGE_WIDTH,1);
  109.    
  110.     fb_init(0,fb_addr, fb_width, fb_height, fb_bpp, fb_scanline,
  111.         MAIN_BGCOLOR,MAIN_FGCOLOR,MAIN_LOGOCOLOR);
  112.  
  113.     fb_putchar(0,'\n');
  114.     fb_putchar(0,' ');
  115.  
  116.     for(i=0;i<H_NO_VFBS;i++)
  117.         for(j=0;j<V_NO_VFBS;j++) {
  118.             w = create_window(0,(fb_width/H_NO_VFBS)*i+SPACING,
  119.                       (fb_height/V_NO_VFBS)*j+SPACING,(fb_width/H_NO_VFBS)-2*SPACING ,
  120.                       (fb_height/V_NO_VFBS)-2*SPACING,mod_col(DEFAULT_BGCOLOR,/*i+j*H_NO_VFBS*/0),
  121.                       mod_col(DEFAULT_FGCOLOR,/*i+j*H_NO_VFBS*/0),
  122.                       mod_col(DEFAULT_LOGOCOLOR,/*i+j*H_NO_VFBS)*/0));
  123.            
  124.             if( w== EFB)
  125.                 return -1;
  126.            
  127.             for(k=0;text[k];k++)
  128.                 fb_putchar(w,text[k]);
  129.             fb_putchar(w,w+'0');
  130.             fb_putchar(w,'\n');
  131.         }
  132.     return 0;
  133. }
  134.  
  135. int vfb_no = 1;
  136. void client_connection(ipc_callid_t iid, ipc_call_t *icall)
  137. {
  138.     ipc_callid_t callid;
  139.     ipc_call_t call;
  140.     int vfb = vfb_no++;
  141.  
  142.     if (vfb > 9) {
  143.         ipc_answer_fast(iid, ELIMIT, 0,0);
  144.         return;
  145.     }
  146.     ipc_answer_fast(iid, 0, 0, 0);
  147.  
  148.     while (1) {
  149.         callid = async_get_call(&call);
  150.         switch (IPC_GET_METHOD(call)) {
  151.         case IPC_M_PHONE_HUNGUP:
  152.             ipc_answer_fast(callid,0,0,0);
  153.             return; /* Exit thread */
  154.  
  155.         case FB_PUTCHAR:
  156.             ipc_answer_fast(callid,0,0,0);
  157.             fb_putchar(vfb,IPC_GET_ARG2(call));
  158.             break;
  159.         default:
  160.             ipc_answer_fast(callid,ENOENT,0,0);
  161.         }
  162.     }
  163. }
  164.  
  165. int main(int argc, char *argv[])
  166. {
  167.     ipc_call_t call;
  168.     ipc_callid_t callid;
  169.     char connected = 0;
  170.     int res;
  171.     int c;
  172.     ipcarg_t phonead;
  173.    
  174.     ipcarg_t retval, arg1, arg2;
  175.  
  176.     if(!sysinfo_value("fb")) return -1;
  177.  
  178.  
  179.     if ((res = ipc_connect_to_me(PHONE_NS, SERVICE_VIDEO, 0, &phonead)) != 0)
  180.         return -1;
  181.    
  182.     init_fb();
  183.  
  184.     async_manager();
  185.     /* Never reached */
  186.     return 0;
  187. }
  188.  
  189.  
  190. #define GRAPHICS_ITEMS 1024
  191.  
  192.  
  193. /***************************************************************/
  194. /* Pixel specific fuctions */
  195.  
  196. typedef void (*putpixel_fn_t)(int item,unsigned int x, unsigned int y, int color);
  197. typedef int (*getpixel_fn_t)(int item,unsigned int x, unsigned int y);
  198.  
  199. typedef struct framebuffer_descriptor
  200. {
  201.     __u8 *fbaddress ;
  202.  
  203.     unsigned int xres ;
  204.     unsigned int yres ;
  205.     unsigned int scanline ;
  206.     unsigned int pixelbytes ;
  207.  
  208.     unsigned int position ;
  209.     unsigned int columns ;
  210.     unsigned int rows ;
  211.    
  212.     unsigned int BGCOLOR;
  213.     unsigned int FGCOLOR;
  214.     unsigned int LOGOCOLOR;
  215.    
  216.     putpixel_fn_t putpixel;
  217.     getpixel_fn_t getpixel;
  218.    
  219. }framebuffer_descriptor_t;
  220.  
  221. void * graphics_items[GRAPHICS_ITEMS+1]={NULL};
  222.  
  223. #define FB(__a__,__b__) (((framebuffer_descriptor_t*)(graphics_items[__a__]))->__b__)
  224.  
  225. #define COL_WIDTH   8
  226. #define ROW_BYTES   (FB(item,scanline) * FONT_SCANLINES)
  227. #define RED(x, bits)    ((x >> (16 + 8 - bits)) & ((1 << bits) - 1))
  228. #define GREEN(x, bits)  ((x >> (8 + 8 - bits)) & ((1 << bits) - 1))
  229. #define BLUE(x, bits)   ((x >> (8 - bits)) & ((1 << bits) - 1))
  230.  
  231. #define POINTPOS(x, y)  (y * FB(item,scanline) + x * FB(item,pixelbytes))
  232.  
  233.  
  234.  
  235.  
  236. /** Put pixel - 24-bit depth, 1 free byte */
  237. static void putpixel_4byte(int item,unsigned int x, unsigned int y, int color)
  238. {
  239.     *((__u32 *)(FB(item,fbaddress) + POINTPOS(x, y))) = color;
  240. }
  241.  
  242. /** Return pixel color - 24-bit depth, 1 free byte */
  243. static int getpixel_4byte(int item,unsigned int x, unsigned int y)
  244. {
  245.     return *((__u32 *)(FB(item,fbaddress) + POINTPOS(x, y))) & 0xffffff;
  246. }
  247.  
  248. /** Put pixel - 24-bit depth */
  249. static void putpixel_3byte(int item,unsigned int x, unsigned int y, int color)
  250. {
  251.     unsigned int startbyte = POINTPOS(x, y);
  252.  
  253. #if (defined(BIG_ENDIAN) || defined(FB_BIG_ENDIAN))
  254.     FB(item,fbaddress)[startbyte] = RED(color, 8);
  255.     FB(item,fbaddress)[startbyte + 1] = GREEN(color, 8);
  256.     FB(item,fbaddress)[startbyte + 2] = BLUE(color, 8);
  257. #else
  258.     FB(item,fbaddress)[startbyte + 2] = RED(color, 8);
  259.     FB(item,fbaddress)[startbyte + 1] = GREEN(color, 8);
  260.     FB(item,fbaddress)[startbyte + 0] = BLUE(color, 8);
  261. #endif
  262.  
  263. }
  264.  
  265. /** Return pixel color - 24-bit depth */
  266. static int getpixel_3byte(int item,unsigned int x, unsigned int y)
  267. {
  268.     unsigned int startbyte = POINTPOS(x, y);
  269.  
  270.  
  271.  
  272. #if (defined(BIG_ENDIAN) || defined(FB_BIG_ENDIAN))
  273.     return FB(item,fbaddress)[startbyte] << 16 | FB(item,fbaddress)[startbyte + 1] << 8 | FB(item,fbaddress)[startbyte + 2];
  274. #else
  275.     return FB(item,fbaddress)[startbyte + 2] << 16 | FB(item,fbaddress)[startbyte + 1] << 8 | FB(item,fbaddress)[startbyte + 0];
  276. #endif
  277.                                
  278.  
  279. }
  280.  
  281. /** Put pixel - 16-bit depth (5:6:5) */
  282. static void putpixel_2byte(int item,unsigned int x, unsigned int y, int color)
  283. {
  284.     /* 5-bit, 6-bits, 5-bits */
  285.     *((__u16 *)(FB(item,fbaddress) + POINTPOS(x, y))) = RED(color, 5) << 11 | GREEN(color, 6) << 5 | BLUE(color, 5);
  286. }
  287.  
  288. /** Return pixel color - 16-bit depth (5:6:5) */
  289. static int getpixel_2byte(int item,unsigned int x, unsigned int y)
  290. {
  291.     int color = *((__u16 *)(FB(item,fbaddress) + POINTPOS(x, y)));
  292.     return (((color >> 11) & 0x1f) << (16 + 3)) | (((color >> 5) & 0x3f) << (8 + 2)) | ((color & 0x1f) << 3);
  293. }
  294.  
  295. /** Put pixel - 8-bit depth (3:2:3) */
  296. static void putpixel_1byte(int item,unsigned int x, unsigned int y, int color)
  297. {
  298.     FB(item,fbaddress)[POINTPOS(x, y)] = RED(color, 3) << 5 | GREEN(color, 2) << 3 | BLUE(color, 3);
  299. }
  300.  
  301. /** Return pixel color - 8-bit depth (3:2:3) */
  302. static int getpixel_1byte(int item,unsigned int x, unsigned int y)
  303. {
  304.     int color = FB(item,fbaddress)[POINTPOS(x, y)];
  305.     return (((color >> 5) & 0x7) << (16 + 5)) | (((color >> 3) & 0x3) << (8 + 6)) | ((color & 0x7) << 5);
  306. }
  307.  
  308. /** Fill line with color BGCOLOR */
  309. static void clear_line(int item,unsigned int y)
  310. {
  311.     unsigned int x;
  312.     for (x = 0; x < FB(item,xres); x++)
  313.         FB(item,putpixel)(item,x, y, FB(item,BGCOLOR));
  314. }
  315.  
  316.  
  317. /** Fill screen with background color */
  318. static void clear_screen(int item)
  319. {
  320.     unsigned int y;
  321.     for (y = 0; y < FB(item,yres); y++)
  322.     {
  323.         clear_line(item,y);
  324.     }  
  325. }
  326.  
  327.  
  328. /** Scroll screen one row up */
  329. static void scroll_screen(int item)
  330. {
  331.     unsigned int i;
  332.     unsigned int j;
  333.  
  334.     for(j=0;j<FB(item,yres)-FONT_SCANLINES;j++)
  335.         memcpy((void *) FB(item,fbaddress)+j*FB(item,scanline),
  336.             (void *) &FB(item,fbaddress)[ROW_BYTES+j*FB(item,scanline)], FB(item,pixelbytes)*FB(item,xres));
  337.  
  338.     //memcpy((void *) FB(item,fbaddress), (void *) &FB(item,fbaddress)[ROW_BYTES], FB(item,scanline) * FB(item,yres) - ROW_BYTES);
  339.  
  340.     /* Clear last row */
  341.     for (i = 0; i < FONT_SCANLINES; i++)
  342.         clear_line(item,(FB(item,rows) - 1) * FONT_SCANLINES + i);
  343. }
  344.  
  345.  
  346. static void invert_pixel(int item,unsigned int x, unsigned int y)
  347. {
  348.     FB(item,putpixel)(item, x, y, ~FB(item,getpixel)(item, x, y));
  349. }
  350.  
  351.  
  352. /** Draw one line of glyph at a given position */
  353. static void draw_glyph_line(int item,unsigned int glline, unsigned int x, unsigned int y)
  354. {
  355.     unsigned int i;
  356.  
  357.     for (i = 0; i < 8; i++)
  358.         if (glline & (1 << (7 - i))) {
  359.             FB(item,putpixel)(item,x + i, y, FB(item,FGCOLOR));
  360.         } else
  361.             FB(item,putpixel)(item,x + i, y, FB(item,BGCOLOR));
  362. }
  363.  
  364. /***************************************************************/
  365. /* Character-console functions */
  366.  
  367. /** Draw character at given position */
  368. static void draw_glyph(int item,__u8 glyph, unsigned int col, unsigned int row)
  369. {
  370.     unsigned int y;
  371.  
  372.     for (y = 0; y < FONT_SCANLINES; y++)
  373.         draw_glyph_line(item ,fb_font[glyph * FONT_SCANLINES + y], col * COL_WIDTH, row * FONT_SCANLINES + y);
  374. }
  375.  
  376. /** Invert character at given position */
  377. static void invert_char(int item,unsigned int col, unsigned int row)
  378. {
  379.     unsigned int x;
  380.     unsigned int y;
  381.  
  382.     for (x = 0; x < COL_WIDTH; x++)
  383.         for (y = 0; y < FONT_SCANLINES; y++)
  384.             invert_pixel(item,col * COL_WIDTH + x, row * FONT_SCANLINES + y);
  385. }
  386.  
  387. /** Draw character at default position */
  388. static void draw_char(int item,char chr)
  389. {
  390.     draw_glyph(item ,chr, FB(item,position) % FB(item,columns), FB(item,position) / FB(item,columns));
  391. }
  392.  
  393. static void draw_logo(int item,unsigned int startx, unsigned int starty)
  394. {
  395.     unsigned int x;
  396.     unsigned int y;
  397.     unsigned int byte;
  398.     unsigned int rowbytes;
  399.  
  400.     rowbytes = (helenos_width - 1) / 8 + 1;
  401.  
  402.     for (y = 0; y < helenos_height; y++)
  403.         for (x = 0; x < helenos_width; x++) {
  404.             byte = helenos_bits[rowbytes * y + x / 8];
  405.             byte >>= x % 8;
  406.             if (byte & 1)
  407.                 FB(item,putpixel)(item,startx + x, starty + y, FB(item,LOGOCOLOR));
  408.         }
  409. }
  410.  
  411. /***************************************************************/
  412. /* Stdout specific functions */
  413.  
  414. static void invert_cursor(int item)
  415. {
  416.     invert_char(item,FB(item,position) % FB(item,columns), FB(item,position) / FB(item,columns));
  417. }
  418.  
  419. /** Print character to screen
  420.  *
  421.  *  Emulate basic terminal commands
  422.  */
  423. static void fb_putchar(int item,char ch)
  424. {
  425.    
  426.     switch (ch) {
  427.         case '\n':
  428.             invert_cursor(item);
  429.             FB(item,position) += FB(item,columns);
  430.             FB(item,position) -= FB(item,position) % FB(item,columns);
  431.             break;
  432.         case '\r':
  433.             invert_cursor(item);
  434.             FB(item,position) -= FB(item,position) % FB(item,columns);
  435.             break;
  436.         case '\b':
  437.             invert_cursor(item);
  438.             if (FB(item,position) % FB(item,columns))
  439.                 FB(item,position)--;
  440.             break;
  441.         case '\t':
  442.             invert_cursor(item);
  443.             do {
  444.                 draw_char(item,' ');
  445.                 FB(item,position)++;
  446.             } while (FB(item,position) % 8);
  447.             break;
  448.         default:
  449.             draw_char(item,ch);
  450.             FB(item,position)++;
  451.     }
  452.    
  453.     if (FB(item,position) >= FB(item,columns) * FB(item,rows)) {
  454.         FB(item,position) -= FB(item,columns);
  455.         scroll_screen(item);
  456.     }
  457.    
  458.     invert_cursor(item);
  459.    
  460. }
  461.  
  462.  
  463. /** Initialize framebuffer as a chardev output device
  464.  *
  465.  * @param addr Address of theframebuffer
  466.  * @param x    Screen width in pixels
  467.  * @param y    Screen height in pixels
  468.  * @param bpp  Bits per pixel (8, 16, 24, 32)
  469.  * @param scan Bytes per one scanline
  470.  *
  471.  */
  472. void fb_init(int item,__address addr, unsigned int x, unsigned int y, unsigned int bpp, unsigned int scan,
  473.     unsigned int BGCOLOR,unsigned int FGCOLOR,unsigned int LOGOCOLOR)
  474. {
  475.    
  476.     if( (graphics_items[item]=malloc(sizeof(framebuffer_descriptor_t))) ==NULL)
  477.     {
  478.         return;
  479.     }
  480.  
  481.     switch (bpp) {
  482.         case 8:
  483.             FB(item,putpixel) = putpixel_1byte;
  484.             FB(item,getpixel) = getpixel_1byte;
  485.             FB(item,pixelbytes) = 1;
  486.             break;
  487.         case 16:
  488.             FB(item,putpixel) = putpixel_2byte;
  489.             FB(item,getpixel) = getpixel_2byte;
  490.             FB(item,pixelbytes) = 2;
  491.             break;
  492.         case 24:
  493.             FB(item,putpixel) = putpixel_3byte;
  494.             FB(item,getpixel) = getpixel_3byte;
  495.             FB(item,pixelbytes) = 3;
  496.             break;
  497.         case 32:
  498.             FB(item,putpixel) = putpixel_4byte;
  499.             FB(item,getpixel) = getpixel_4byte;
  500.             FB(item,pixelbytes) = 4;
  501.             break;
  502.     }
  503.  
  504.        
  505.     FB(item,fbaddress) = (unsigned char *) addr;
  506.     FB(item,xres) = x;
  507.     FB(item,yres) = y;
  508.     FB(item,scanline) = scan;
  509.    
  510.    
  511.     FB(item,rows) = y / FONT_SCANLINES;
  512.     FB(item,columns) = x / COL_WIDTH;
  513.  
  514.     FB(item,BGCOLOR)=BGCOLOR;
  515.     FB(item,FGCOLOR)=FGCOLOR;
  516.     FB(item,LOGOCOLOR)=LOGOCOLOR;
  517.  
  518.  
  519.     clear_screen(item);
  520.     draw_logo(item,FB(item,xres) - helenos_width, 0);
  521.     invert_cursor(item);
  522.  
  523. }
  524.  
  525.  
  526. static int get_free_item()
  527. {
  528.     int item;
  529.     for(item=0;graphics_items[item]!=NULL;item++);
  530.     return (item==GRAPHICS_ITEMS)?EFB:item;
  531. }
  532.  
  533. unsigned int mod_col(unsigned int col,int mod)
  534. {
  535.     if(mod & 1) col^=0xff;
  536.     if(mod & 2) col^=0xff00;
  537.     if(mod & 4) col^=0xff0000;
  538.     return col;
  539. }
  540.  
  541.  
  542. int create_window(int item,unsigned int x, unsigned int y,unsigned int x_size, unsigned int y_size,
  543.     unsigned int BGCOLOR,unsigned int FGCOLOR,unsigned int LOGOCOLOR)
  544. {
  545.     int item_new;
  546.    
  547.     if(EFB==(item_new=get_free_item()))return EFB;
  548.    
  549.    
  550.     if( (graphics_items[item_new]=malloc(sizeof(framebuffer_descriptor_t))) ==NULL)
  551.     {
  552.         return EFB;
  553.     }
  554.    
  555.    
  556.    
  557.     FB(item_new,putpixel) = FB(item,putpixel);
  558.     FB(item_new,getpixel) = FB(item,getpixel);
  559.     FB(item_new,pixelbytes) = FB(item,pixelbytes);
  560.  
  561.     FB(item_new,fbaddress) = FB(item,fbaddress) + POINTPOS(x, y) ;
  562.     FB(item_new,xres) = x_size;
  563.     FB(item_new,yres) = y_size;
  564.     FB(item_new,scanline) =  FB(item,scanline);
  565.    
  566.  
  567.     FB(item_new,rows) = y_size / FONT_SCANLINES;
  568.     FB(item_new,columns) = x_size / COL_WIDTH;
  569.  
  570.     FB(item_new,BGCOLOR)=BGCOLOR;
  571.     FB(item_new,FGCOLOR)=FGCOLOR;
  572.     FB(item_new,LOGOCOLOR)=LOGOCOLOR;
  573.  
  574.  
  575.     clear_screen(item_new);
  576.     draw_logo(item_new,FB(item_new,xres) - helenos_width, 0);
  577.     invert_cursor(item_new);
  578.  
  579.     return item_new;
  580. }
  581.  
  582.  
  583.  
  584.