annotate test/testime.c @ 4525:3abf0b9cafad

pelya 2010-07-12 03:53:48 PDT In function GLES_RenderCopy() in SDL_renderer_gles.c:819 there is one memcpy() that can be avoided if we're updating whole texture. Because of that the SDL 1.3 in compatibility mode is working even slower than software rendering in SDL 1.2.
author Sam Lantinga <slouken@libsdl.org>
date Wed, 14 Jul 2010 07:31:35 -0700
parents 3e69e077cb95
children 8c229370ddba b99b1024607a
rev   line source
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1 /* A simple program to test the Input Method support in the SDL library (1.3+) */
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2
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3 #include <stdlib.h>
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4 #include <stdio.h>
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5 #include <string.h>
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6
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7 #include "SDL.h"
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8 #ifdef HAVE_SDL_TTF
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9 #include "SDL_ttf.h"
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10 #endif
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11
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12 #define DEFAULT_PTSIZE 30
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13 #ifdef __QNXNTO__
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14 #define DEFAULT_FONT "/usr/photon/font_repository/tt0003m_.ttf"
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15 #else
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16 #define DEFAULT_FONT "/System/Library/Fonts/华文细黑.ttf"
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17 #endif
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18 #define MAX_TEXT_LENGTH 256
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19
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20 SDL_Surface *screen;
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21
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22 #ifdef HAVE_SDL_TTF
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23 TTF_Font *font;
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24 #endif
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25 SDL_Rect textRect, markedRect;
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26 Uint32 lineColor, backColor;
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27 SDL_Color textColor = { 0, 0, 0 };
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28 char text[MAX_TEXT_LENGTH], *markedText;
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29
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30 void usage()
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31 {
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32 printf("usage: testime [--font fontfile] [--fullscreen]\n");
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33 exit(0);
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34 }
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35
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36 void InitVideo(int argc, char *argv[])
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37 {
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38 int width = 640, height = 480;
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39 int flags = SDL_HWSURFACE;
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40 const char *fontname = DEFAULT_FONT;
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41 int fullscreen = 0;
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42
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43 for (argc--, argv++; argc > 0; argc--, argv++)
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44 {
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45 if (strcmp(argv[0], "--help") == 0)
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46 usage();
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47
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48 else if (strcmp(argv[0], "--fullscreen") == 0)
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49 fullscreen = 1;
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50
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51 else if (strcmp(argv[0], "--font") == 0)
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52 {
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53 argc--;
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54 argv++;
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55
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56 if (argc > 0)
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57 fontname = argv[0];
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58 else
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59 usage();
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60 }
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61 }
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62
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63 SDL_setenv("SDL_VIDEO_WINDOW_POS", "center", 1);
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64 if (SDL_Init(SDL_INIT_VIDEO) < 0)
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65 {
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66 fprintf(stderr, "Unable to init SDL: %s\n", SDL_GetError());
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67 exit(-1);
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68 }
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69
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70 #ifdef HAVE_SDL_TTF
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71 /* Initialize fonts */
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72 TTF_Init();
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73
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74 font = TTF_OpenFont(fontname, DEFAULT_PTSIZE);
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75 if (! font)
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76 {
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77 fprintf(stderr, "Failed to find font: %s\n", TTF_GetError());
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78 exit(-1);
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79 }
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80 #endif
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81
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82 printf("Using font: %s\n", fontname);
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83 atexit(SDL_Quit);
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84
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85 if (fullscreen)
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86 {
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87 SDL_DisplayMode mode;
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88 SDL_GetDesktopDisplayMode(&mode);
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89
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90 width = mode.w;
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91 height = mode.h;
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92 fprintf(stderr, "%dx%d\n", width, height);
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93 flags |= SDL_FULLSCREEN;
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94 }
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95
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96 /* Create window */
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97 screen = SDL_SetVideoMode(width, height, 32, flags);
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98 if (screen == NULL)
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99 {
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100 fprintf(stderr, "Unable to set %dx%d video: %s\n",
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101 width, height, SDL_GetError());
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102 exit(-1);
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103 }
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104 }
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105
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106 void CleanupVideo()
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107 {
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108 SDL_StopTextInput();
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109 #ifdef HAVE_SDL_TTF
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110 TTF_CloseFont(font);
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111 TTF_Quit();
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112 #endif
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113 }
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114
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115 void InitInput()
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116 {
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117 backColor = SDL_MapRGB(screen->format, 0xFF, 0xFF, 0xFF);
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118 lineColor = SDL_MapRGB(screen->format, 0x0, 0x0, 0x0);
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119
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120 /* Prepare a rect for text input */
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121 textRect.x = textRect.y = 100;
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122 textRect.w = screen->w - 2 * textRect.x;
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123 textRect.h = 50;
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124
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125 text[0] = 0;
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126 markedRect = textRect;
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127 markedText = NULL;
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128
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129 SDL_StartTextInput();
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130 }
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131
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132 #ifdef HAVE_SDL_TTF
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133 static void RenderText(SDL_Surface *sur,
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134 TTF_Font *font,
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135 const char *text,
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136 int x, int y,
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137 SDL_Color color)
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138 {
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139 SDL_Surface *textSur = TTF_RenderUTF8_Blended(font, text, color);
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140 SDL_Rect dest = { x, y, textSur->w, textSur->h };
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141
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142 SDL_BlitSurface(textSur, NULL, sur, &dest);
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143 SDL_FreeSurface(textSur);
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144 }
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145 #endif
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146
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147 void Redraw()
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148 {
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149 int w = 0, h = textRect.h;
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150 SDL_Rect cursorRect, underlineRect;
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151
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152 SDL_FillRect(screen, &textRect, backColor);
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153
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154 #ifdef HAVE_SDL_TTF
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155 if (strlen(text))
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156 {
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157 RenderText(screen, font, text, textRect.x, textRect.y, textColor);
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158 TTF_SizeUTF8(font, text, &w, &h);
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159 }
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160 #endif
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161
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162 markedRect.x = textRect.x + w;
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163 markedRect.w = textRect.w - w;
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164 if (markedRect.w < 0)
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165 {
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166 SDL_Flip(screen);
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167 // Stop text input because we cannot hold any more characters
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168 SDL_StopTextInput();
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169 return;
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170 }
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171 else
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172 {
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173 SDL_StartTextInput();
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174 }
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175
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176 cursorRect = markedRect;
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177 cursorRect.w = 2;
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178 cursorRect.h = h;
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179
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180 SDL_FillRect(screen, &markedRect, backColor);
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181 if (markedText)
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182 {
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183 #ifdef HAVE_SDL_TTF
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184 RenderText(screen, font, markedText, markedRect.x, markedRect.y, textColor);
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185 TTF_SizeUTF8(font, markedText, &w, &h);
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186 #endif
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187
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188 underlineRect = markedRect;
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189 underlineRect.y += (h - 2);
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190 underlineRect.h = 2;
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191 underlineRect.w = w;
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192
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193 cursorRect.x += w + 1;
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194
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195 SDL_FillRect(screen, &underlineRect, lineColor);
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196 }
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197
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198 SDL_FillRect(screen, &cursorRect, lineColor);
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199
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200 SDL_Flip(screen);
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201
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202 SDL_SetTextInputRect(&markedRect);
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203 }
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204
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205 void
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206 HotKey_ToggleFullScreen(void)
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207 {
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208 SDL_Surface *screen;
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209
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210 screen = SDL_GetVideoSurface();
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211 if (SDL_WM_ToggleFullScreen(screen)) {
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212 printf("Toggled fullscreen mode - now %s\n",
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213 (screen->flags & SDL_FULLSCREEN) ? "fullscreen" : "windowed");
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214 } else {
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215 printf("Unable to toggle fullscreen mode\n");
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216 }
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217 }
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218
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219 int main(int argc, char *argv[])
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220 {
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221 SDL_Event event;
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222 int done = 0;
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223
3280
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224 InitVideo(argc, argv);
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225 InitInput();
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226 Redraw();
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227
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228 while (! done && SDL_WaitEvent(&event))
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229 {
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230 switch (event.type)
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231 {
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232 case SDL_KEYDOWN:
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233 switch (event.key.keysym.sym)
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234 {
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235 case SDLK_ESCAPE:
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236 done = 1;
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237 break;
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238 case SDLK_RETURN:
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239 text[0]=0x00;
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240 Redraw();
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241 break;
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242 case SDLK_BACKSPACE:
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243 {
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244 int textlen=SDL_strlen(text);
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245
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246 do {
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247 if (textlen==0)
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248 {
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249 break;
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250 }
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251 if ((text[textlen-1] & 0x80) == 0x00)
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252 {
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253 /* One byte */
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254 text[textlen-1]=0x00;
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255 break;
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256 }
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257 if ((text[textlen-1] & 0xC0) == 0x80)
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258 {
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259 /* Byte from the multibyte sequence */
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260 text[textlen-1]=0x00;
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diff changeset
261 textlen--;
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262 }
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263 if ((text[textlen-1] & 0xC0) == 0xC0)
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264 {
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265 /* First byte of multibyte sequence */
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266 text[textlen-1]=0x00;
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267 break;
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268 }
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269 } while(1);
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270
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271 Redraw();
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272 }
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273 break;
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274 }
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275
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276 if (done)
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277 {
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278 break;
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279 }
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280
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281 fprintf(stderr,
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282 "Keyboard: scancode 0x%08X = %s, keycode 0x%08X = %s\n",
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283 event.key.keysym.scancode,
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284 SDL_GetScancodeName(event.key.keysym.scancode),
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285 event.key.keysym.sym, SDL_GetKeyName(event.key.keysym.sym));
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286 break;
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287
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288 case SDL_TEXTINPUT:
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289 if (SDL_strlen(event.text.text) == 0 || event.text.text[0] == '\n' ||
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290 markedRect.w < 0)
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291 break;
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292
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293 fprintf(stderr, "Keyboard: text input \"%s\"\n", event.text.text);
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294
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295 if (SDL_strlen(text) + SDL_strlen(event.text.text) < sizeof(text))
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296 strcpy(text + SDL_strlen(text), event.text.text);
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297
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298 fprintf(stderr, "text inputed: %s\n", text);
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299
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300 // After text inputed, we can clear up markedText because it
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301 // is committed
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302 markedText = NULL;
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303 Redraw();
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304 break;
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305
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306 case SDL_TEXTEDITING:
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307 fprintf(stderr, "text editing \"%s\", selected range (%d, %d)\n",
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308 event.edit.text, event.edit.start, event.edit.length);
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309
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310 markedText = event.edit.text;
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311 Redraw();
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312 break;
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313
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314 case SDL_QUIT:
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315 done = 1;
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316 break;
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317
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318 default:
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319 break;
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320 }
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321 }
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322
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323 CleanupVideo();
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324 return 0;
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325 }