Mercurial > hg > Game > Cerium

comparison Renderer/Engine/viewerFB.cc @ 895:b662e9dd26b0 draft

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
add alignment of classes in SPU width and height are automatically set in frame buffer API
author Shinji KONO <kono@ie.u-ryukyu.ac.jp>
date Fri, 16 Jul 2010 17:23:49 +0900
parents c7afc21e448d
children 1760b45ca799
comparison
equal deleted inserted replaced
894:d9d229ede3ff 895:b662e9dd26b0
1 #include "viewerFB.h" 1 #include "viewerFB.h"
2 #include "fb.h" 2 #include "fb.h"
3 #include <stdio.h>
3 4
4 #define default_sdl_flag SDL_INIT_TIMER | SDL_INIT_JOYSTICK 5 #define default_sdl_flag SDL_INIT_TIMER | SDL_INIT_JOYSTICK
5 //extern void post2runLoop(void *); 6
6 ViewerFB::ViewerFB() {} 7 ViewerFB::ViewerFB() {}
7 ViewerFB::~ViewerFB() {} 8 ViewerFB::~ViewerFB() {}
9
10 #if defined(__linux__)
11
12 #define DEVICE_NAME "/dev/fb0"
13 #define DIV_BYTE 8
14
15
16 ScreenInfo get_fbdev_addr(void)
17 {
18 ScreenInfo info;
19 int fd_framebuffer ;
20 struct fb_var_screeninfo vinfo;
21 struct fb_fix_screeninfo finfo;
22 long int screensize ;
23 //long int location;
24 char *fbptr ;
25 char tmp[DIV_BYTE*10];
26
27 //int x , y ;
28 int xres,yres,vbpp,line_len;
29 //unsigned short tcolor ;
30
31 /* 読み書き用にファイルを開く */
32 fd_framebuffer = open( DEVICE_NAME , O_RDWR);
33 if ( !fd_framebuffer ) {
34 send_current_error_msg("Framebuffer device open error !");
35 exit(1);
36 }
37 send_current_information("The framebuffer device was opened !");
38
39 /* 固定スクリーン情報取得 */
40 if ( ioctl( fd_framebuffer , FBIOGET_FSCREENINFO , &finfo ) ) {
41 send_current_error_msg("Fixed information not gotton !");
42 exit(2);
43 }
44
45 /* 変動スクリーン情報取得 */
46 if ( ioctl( fd_framebuffer , FBIOGET_VSCREENINFO , &vinfo ) ) {
47 send_current_error_msg("Variable information not gotton !");
48 exit(3);
49 }
50 xres = vinfo.xres ;
51 yres = vinfo.yres ;
52 vbpp = vinfo.bits_per_pixel ;
53 line_len = finfo.line_length ;
54 sprintf( tmp , "%d(pixel)x%d(line), %dbpp(bits per pixel)",xres,yres,vbpp);
55 send_current_information( tmp );
56
57 /* バイト単位でのスクリーンのサイズを計算 */
58 screensize = xres * yres * vbpp / DIV_BYTE ;
59
60 /* デバイスをメモリにマップする */
61 fbptr = (char *)mmap(0,screensize,PROT_READ | PROT_WRITE,MAP_SHARED,fd_framebuffer,0);
62 if ( (int)fbptr == -1 ) {
63 send_current_error_msg("Don't get framebuffer device to memory !");
64 exit(4);
65 }
66 send_current_information("The framebuffer device was mapped !");
67
68 printf("fb: 0x%x \n", (unsigned int)fbptr);
69 info.xres = xres;
70 info.yres = yres;
71 info.vbpp = vbpp;
72 info.line_len = line_len;
73 info.fbptr = fbptr;
74
75 return info;
76 //munmap(fbptr,screensize);
77 //close(fd_framebuffer);
78 //return 0;
79 }
80
81 void send_current_error_msg(const char *ptr)
82 {
83 fprintf( stderr , "%s\n" , ptr );
84 }
85
86 void send_current_information(const char *ptr)
87 {
88 fprintf( stdout , "%s\n" , ptr );
89 }
90
91 #else /* !defined(__linux__) */
92 ScreenInfo get_fbdev_addr(void) {
93 ScreenInfo tmp = {0,0,0,0};
94 return tmp;
95 }
96 #endif /* defined(__linux__) */
97
8 98
9 Uint32 * 99 Uint32 *
10 ViewerFB::video_init(TaskManager *manager, int bpp, int width, int height) 100 ViewerFB::video_init(TaskManager *manager, int bpp, int width, int height)
11 { 101 {
12 Uint32 sdl_flag = default_sdl_flag | SDL_INIT_VIDEO; 102 Uint32 sdl_flag = default_sdl_flag | SDL_INIT_VIDEO;
14 if (SDL_Init(sdl_flag) < 0) { 104 if (SDL_Init(sdl_flag) < 0) {
15 fprintf(stderr,"Couldn't initialize SDL: %s\n",SDL_GetError()); 105 fprintf(stderr,"Couldn't initialize SDL: %s\n",SDL_GetError());
16 exit(1); 106 exit(1);
17 } 107 }
18 108
19 Uint32 *pixels = (Uint32*)get_fbdev_addr(); 109 screen_info = get_fbdev_addr();
110 Uint32 *pixels = (Uint32*) screen_info.fbptr;
20 111
21 if (pixels == 0) { 112 if (pixels == 0) {
113 fprintf(stderr, "Cannot get frame buffer!\n");
22 pixels = (new Uint32[width*height*32/8]); 114 pixels = (new Uint32[width*height*32/8]);
23 } 115 }
116 width = screen_info.xres;
117 height = screen_info.yres;
118 bpp = screen_info.vbpp;
24 119
25 return pixels; 120 return pixels;
26 } 121 }
27 122
28 void 123 void
29 ViewerFB::clean_pixels() 124 ViewerFB::clean_pixels()
30 { 125 {
31 //bzero(pixels, sizeof(int)*width*height);
32 //memset(pixels, 0xFF, sizeof(int)*width*height);
33 } 126 }
34 127
35 void 128 void
36 ViewerFB::clear_screen() 129 ViewerFB::clear_screen()
37 { 130 {