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annotate Renderer/Engine/viewerFB.cc @ 996:78ebcdaae8bc

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add sdl_test file
author yutaka@charles.cr.ie.u-ryukyu.ac.jp
date Mon, 11 Oct 2010 18:56:51 +0900
parents df5185513c2d
children
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1 #include "viewerFB.h"
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2 #include "fb.h"
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3 #include <stdio.h>
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4 #if 0
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5 #include <asm/ps3fb.h>
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6 #endif
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7
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8
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9 #define default_sdl_flag SDL_INIT_TIMER | SDL_INIT_JOYSTICK
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10
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11 ViewerFB::ViewerFB() {}
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12 ViewerFB::~ViewerFB() {}
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13
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14 #if defined(__linux__)
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15
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16 #define DEVICE_NAME "/dev/fb0"
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17 #define DIV_BYTE 8
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18
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19
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20 ScreenInfo get_fbdev_addr(void)
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21 {
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22 ScreenInfo info;
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23 int fd_framebuffer ;
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24 struct fb_var_screeninfo vinfo;
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25 struct fb_fix_screeninfo finfo;
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26 long int screensize ;
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27 //long int location;
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28 char *fbptr ;
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29 char tmp[DIV_BYTE*10];
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30
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31 //int x , y ;
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32 int xres,yres,vbpp,line_len;
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33 //unsigned short tcolor ;
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34
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35 /* 読み書き用にファイルを開く */
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36 fd_framebuffer = open( DEVICE_NAME , O_RDWR);
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37 if ( !fd_framebuffer ) {
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38 send_current_error_msg("Framebuffer device open error !");
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39 exit(1);
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40 }
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41 send_current_information("The framebuffer device was opened !");
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42
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43 /* 固定スクリーン情報取得 */
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44 if ( ioctl( fd_framebuffer , FBIOGET_FSCREENINFO , &finfo ) ) {
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45 send_current_error_msg("Fixed information not gotton !");
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46 exit(2);
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47 }
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48
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49 /* 変動スクリーン情報取得 */
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50 if ( ioctl( fd_framebuffer , FBIOGET_VSCREENINFO , &vinfo ) ) {
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51 send_current_error_msg("Variable information not gotton !");
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52 exit(3);
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53 }
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54 xres = vinfo.xres ;
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55 yres = vinfo.yres ;
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56 vbpp = vinfo.bits_per_pixel ;
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57 line_len = finfo.line_length ;
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58 sprintf( tmp , "%d(pixel)x%d(line), %dbpp(bits per pixel)",xres,yres,vbpp);
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59 send_current_information( tmp );
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60
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61 /* バイト単位でのスクリーンのサイズを計算 */
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62 screensize = xres * yres * vbpp / DIV_BYTE ;
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63
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64 /* デバイスをメモリにマップする */
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65 fbptr = (char *)mmap(0,screensize,PROT_READ | PROT_WRITE,MAP_SHARED,fd_framebuffer,0);
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66 if ( (int)fbptr == -1 ) {
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67 send_current_error_msg("Don't get framebuffer device to memory !");
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68 exit(4);
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69 }
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70 send_current_information("The framebuffer device was mapped !");
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71
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72 #if 0
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73 // Take control of frame buffer from kernel
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74 ioctl(fd_framebuffer, PS3FB_IOCTL_ON, 0);
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75 int field_ndx = 0;
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76 ioctl(fd_framebuffer , PS3FB_IOCTL_FSEL, &field_ndx );
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77 #endif
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78
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79
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80 printf("fb: 0x%x \n", (unsigned int)fbptr);
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81 info.xres = xres;
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82 info.yres = yres;
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83 info.vbpp = vbpp;
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84 info.line_len = line_len;
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85 info.fbptr[0] = (uint32_t *)fbptr;
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86
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87 return info;
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88 //munmap(fbptr,screensize);
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89 //close(fd_framebuffer);
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90 //return 0;
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91 }
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92
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93 void send_current_error_msg(const char *ptr)
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94 {
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95 fprintf( stderr , "%s\n" , ptr );
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96 }
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97
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98 void send_current_information(const char *ptr)
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99 {
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100 fprintf( stdout , "%s\n" , ptr );
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101 }
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102
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103 #else /* !defined(__linux__) */
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104 ScreenInfo get_fbdev_addr(void) {
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105 ScreenInfo tmp = {0,0,0,0};
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106 return tmp;
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107 }
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108 #endif /* defined(__linux__) */
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109
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110
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111 Uint32 *
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112 ViewerFB::video_init(TaskManager *manager, int bpp, int width, int height)
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113 {
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114 Uint32 sdl_flag = default_sdl_flag | SDL_INIT_VIDEO;
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115
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116 if (SDL_Init(sdl_flag) < 0) {
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117 fprintf(stderr,"Couldn't initialize SDL: %s\n",SDL_GetError());
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118 exit(1);
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119 }
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120
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121 screen_info = get_fbdev_addr();
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122 Uint32 *pixels = screen_info.fbptr[0];
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123
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124 if (pixels == 0) {
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125 fprintf(stderr, "Cannot get frame buffer!\n");
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126 pixels = (new Uint32[width*height*32/8]);
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127 }
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128 this->width = screen_info.xres;
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129 this->height = screen_info.yres;
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130 this->bpp = screen_info.vbpp;
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131
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132 return pixels;
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133 }
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134
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135 void
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136 ViewerFB::clean_pixels()
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137 {
735f76483bb2 Reorganization..
Shinji KONO <kono@ie.u-ryukyu.ac.jp>
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138 }
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4f77768d7a7f add Engine/ViewerDevice , SgRootChange not work
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4f77768d7a7f add Engine/ViewerDevice , SgRootChange not work
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140 void
4f77768d7a7f add Engine/ViewerDevice , SgRootChange not work
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141 ViewerFB::clear_screen()
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142 {
4f77768d7a7f add Engine/ViewerDevice , SgRootChange not work
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4f77768d7a7f add Engine/ViewerDevice , SgRootChange not work
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4f77768d7a7f add Engine/ViewerDevice , SgRootChange not work
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4f77768d7a7f add Engine/ViewerDevice , SgRootChange not work
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146 void
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147 ViewerFB::free_device()
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148 {
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4f77768d7a7f add Engine/ViewerDevice , SgRootChange not work
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