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comparison old/sdl_test/sdl_test.cc @ 998:ad5232ad4952

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add fb_test, minor fix
author yutaka@localhost.localdomain
date Fri, 15 Oct 2010 02:13:55 +0900
parents 78ebcdaae8bc
children
comparison
equal deleted inserted replaced
997:625be5ca53ab 998:ad5232ad4952
10 void send_current_information(const char *ptr) 10 void send_current_information(const char *ptr)
11 { 11 {
12 fprintf( stdout , "%s\n" , ptr ); 12 fprintf( stdout , "%s\n" , ptr );
13 } 13 }
14 14
15
15 const int redMask = 0x00ff0000; 16 const int redMask = 0x00ff0000;
16 const int greenMask = 0x0000ff00; 17 const int greenMask = 0x0000ff00;
17 const int blueMask = 0x000000ff; 18 const int blueMask = 0x000000ff;
18 const int alphaMask = 0xff000000; 19 const int alphaMask = 0xff000000;
20
19 21
20 fb_t 22 fb_t
21 get_fbdev_addr(void) 23 get_fbdev_addr(void)
22 { 24 {
23 int fd_framebuffer ; 25 int fd_framebuffer ;
61 send_current_information( tmp ); 63 send_current_information( tmp );
62 64
63 /* バイト単位でのスクリーンのサイズを計算 */ 65 /* バイト単位でのスクリーンのサイズを計算 */
64 screensize = xres * yres * vbpp / DIV_BYTE ; 66 screensize = xres * yres * vbpp / DIV_BYTE ;
65 67
66 /* デバイスをメモリにマップする */
67 fbptr = (char *)mmap(0,screensize,PROT_READ | PROT_WRITE,MAP_SHARED,fd_framebuffer,0);
68 if ( (int)fbptr == -1 ) {
69 send_current_error_msg("Don't get framebuffer device to memory !");
70 exit(4);
71 }
72 send_current_information("The framebuffer device was mapped !");
73
74 printf("fb: 0x%x \n", (unsigned int)fbptr);
75
76 fb_t fb; 68 fb_t fb;
77 fb.pixels = fbptr;
78 fb.size = screensize; 69 fb.size = screensize;
79 fb.width = xres; 70 fb.width = xres;
80 fb.height = yres; 71 fb.height = yres;
81 fb.bpp = vbpp; 72 fb.bpp = vbpp;
82 fb.fd = fd_framebuffer; 73 fb.fd = fd_framebuffer;
86 } 77 }
87 78
88 int main() { 79 int main() {
89 80
90 fb_t fb = get_fbdev_addr(); 81 fb_t fb = get_fbdev_addr();
82
91 close(fb.fd); 83 close(fb.fd);
92 84
93 void *p; 85 void *p;
94 Uint32 *gUra; 86 Uint32 *gUra;
95 87
96 //posix_memalign((void**)&gUra, 16, fb.width*fb.height*4); 88 //posix_memalign((void**)&gUra, 16, fb.width*fb.height*4);
97 89
98 gUra = (Uint32*)malloc(fb.width*fb.height*4); 90 gUra = (Uint32*)malloc(fb.width*fb.height*4);
99 Uint32 *tmp = (Uint32*)malloc(fb.width*fb.height*4);
100 91
101 printf("fb.height %d \n", fb.height); 92 printf("fb.height %d \n", fb.height);
102 93
103 int i; 94 int i;
104 int color = 0x000000ff; 95 int color = 0x000000ff;
143 break; 134 break;
144 } 135 }
145 } 136 }
146 137
147 138
139 if (color == 0xffffffff) {
140 color = 0x000000ff;
141 } else {
142
143 char r = ((color & redMask) >> 16) + 1;
144 char g = ((color & greenMask) >> 8) + 1;
145 char b = (color & blueMask) + 1;
146
147 color = alphaMask + (r << 16) + (g << 8) + b;
148
149 }
150
151 for (i = 0; i < fb.width*fb.height; i++) {
152 gUra[i] = color;
153 }
154
148 //ここに処理を追加して変化を見る 155 //ここに処理を追加して変化を見る
149 SDL_Surface *bitmap = SDL_CreateRGBSurfaceFrom((void *)gUra,fb.width,fb.height,fb.bpp,fb.width*4,redMask,greenMask,blueMask,alphaMask); 156 SDL_Surface *bitmap = SDL_CreateRGBSurfaceFrom((void *)gUra,fb.width,fb.height,fb.bpp,fb.width*4,redMask,greenMask,blueMask,0);
150 SDL_BlitSurface(bitmap,NULL,screen,NULL); 157 SDL_BlitSurface(bitmap,NULL,screen,NULL);
151 SDL_UpdateRect(screen,0,0,0,0); 158 SDL_UpdateRect(screen,0,0,0,0);
152 159
153 160
154 if (SDL_GetTicks() < t1 + 1000){ 161 if (SDL_GetTicks() < t1 + 1000){