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annotate src/video/SDL_sysvideo.h @ 2268:4baee598306d

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Date: Thu, 05 Jul 2007 14:02:33 -0700 From: Sam Lantinga Subject: SDL 1.3 keyboard plan After lots of discussion with Christian, this is what we came up with: > So, to sum up... > SDLK_* become the physical keys, starting at > (1<<21) > We create a macro SDLK_INDEX(X) > We have two functions SDL_GetLayoutKey(SDLKey) and SDL_GetKeyName() > SDL_GetLayoutKey maps to UCS4 for printable characters, and SDLK* for non-printable characters > and does so based on the OS's current keyboard layout > SDL_GetKeyName() handles both SDLK_* and UCS4, converting UCS4 to UTF-8 and converting SDLK_* into our names, which are UTF-8 for printable characters. > WASD folks use SDLK_*, and 'I' folks use SDL_GetLayoutKey(SDLK_*) Here is the patch he came up with, and his e-mail about it: Date: Fri, 17 Aug 2007 19:50:28 +0200 From: Christian Walther Subject: Re: SDL 1.3 keyboard plan > Sounds great, go ahead and send me a patch. Here goes! Thanks for having a look. Don't hesitate to comment if anything does not conform to your ideas. One caveat: Committing this now may break compilability of some video drivers - specifically, if they use any of the SDLK_* codes that were obsoleted and moved into SDL_compat.h. I only tried Cocoa (which did break, but is already fixed) and X11 (which didn't, but then its key handling is #iffed out). If that's a problem, it may need to go into a branch. -Christian
author Sam Lantinga <slouken@libsdl.org>
date Sun, 19 Aug 2007 14:52:52 +0000
parents 989fb86ad1ec
children d87417504c75
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1 /*
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2 SDL - Simple DirectMedia Layer
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3 Copyright (C) 1997-2006 Sam Lantinga
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4
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5 This library is free software; you can redistribute it and/or
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6 modify it under the terms of the GNU Lesser General Public
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7 License as published by the Free Software Foundation; either
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8 version 2.1 of the License, or (at your option) any later version.
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9
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10 This library is distributed in the hope that it will be useful,
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11 but WITHOUT ANY WARRANTY; without even the implied warranty of
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12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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13 Lesser General Public License for more details.
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14
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15 You should have received a copy of the GNU Lesser General Public
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16 License along with this library; if not, write to the Free Software
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17 Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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19 Sam Lantinga
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20 slouken@libsdl.org
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21 */
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22 #include "SDL_config.h"
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23
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24 #ifndef _SDL_sysvideo_h
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25 #define _SDL_sysvideo_h
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26
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27 #include "SDL_mouse.h"
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28 #include "SDL_keysym.h"
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29
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30 /* The SDL video driver */
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31
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32 typedef struct SDL_Window SDL_Window;
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33 typedef struct SDL_Texture SDL_Texture;
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34 typedef struct SDL_Renderer SDL_Renderer;
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35 typedef struct SDL_RenderDriver SDL_RenderDriver;
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36 typedef struct SDL_VideoDisplay SDL_VideoDisplay;
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37 typedef struct SDL_VideoDevice SDL_VideoDevice;
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38
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39 /* Define the SDL texture structure */
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40 struct SDL_Texture
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41 {
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42 Uint32 id;
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43
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44 Uint32 format; /**< The pixel format of the texture */
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45 int access; /**< SDL_TextureAccess */
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46 int w; /**< The width of the texture */
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47 int h; /**< The height of the texture */
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48 int modMode; /**< The texture modulation mode */
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49 int blendMode; /**< The texture blend mode */
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50 int scaleMode; /**< The texture scale mode */
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51 Uint8 r, g, b, a; /**< Texture modulation values */
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52
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53 SDL_Renderer *renderer;
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54
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55 void *driverdata; /**< Driver specific texture representation */
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56
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57 SDL_Texture *next;
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58 };
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59
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60 /* Define the SDL renderer structure */
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61 struct SDL_Renderer
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62 {
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63 int (*ActivateRenderer) (SDL_Renderer * renderer);
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64 int (*DisplayModeChanged) (SDL_Renderer * renderer);
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65 int (*CreateTexture) (SDL_Renderer * renderer, SDL_Texture * texture);
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66 int (*QueryTexturePixels) (SDL_Renderer * renderer, SDL_Texture * texture,
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67 void **pixels, int *pitch);
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68 int (*SetTexturePalette) (SDL_Renderer * renderer, SDL_Texture * texture,
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69 const SDL_Color * colors, int firstcolor,
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70 int ncolors);
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71 int (*GetTexturePalette) (SDL_Renderer * renderer, SDL_Texture * texture,
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72 SDL_Color * colors, int firstcolor,
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73 int ncolors);
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74 int (*SetTextureColorMod) (SDL_Renderer * renderer,
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75 SDL_Texture * texture);
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76 int (*SetTextureAlphaMod) (SDL_Renderer * renderer,
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77 SDL_Texture * texture);
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78 int (*SetTextureBlendMode) (SDL_Renderer * renderer,
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79 SDL_Texture * texture);
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80 int (*SetTextureScaleMode) (SDL_Renderer * renderer,
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81 SDL_Texture * texture);
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82 int (*UpdateTexture) (SDL_Renderer * renderer, SDL_Texture * texture,
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83 const SDL_Rect * rect, const void *pixels,
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84 int pitch);
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85 int (*LockTexture) (SDL_Renderer * renderer, SDL_Texture * texture,
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86 const SDL_Rect * rect, int markDirty, void **pixels,
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87 int *pitch);
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88 void (*UnlockTexture) (SDL_Renderer * renderer, SDL_Texture * texture);
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89 void (*DirtyTexture) (SDL_Renderer * renderer, SDL_Texture * texture,
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90 int numrects, const SDL_Rect * rects);
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91 int (*RenderFill) (SDL_Renderer * renderer, Uint8 r, Uint8 g, Uint8 b,
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92 Uint8 a, const SDL_Rect * rect);
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93 int (*RenderCopy) (SDL_Renderer * renderer, SDL_Texture * texture,
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94 const SDL_Rect * srcrect, const SDL_Rect * dstrect);
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95 void (*RenderPresent) (SDL_Renderer * renderer);
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96 void (*DestroyTexture) (SDL_Renderer * renderer, SDL_Texture * texture);
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97
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98 void (*DestroyRenderer) (SDL_Renderer * renderer);
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99
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100 /* The current renderer info */
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101 SDL_RendererInfo info;
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102
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103 /* The window associated with the renderer */
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104 SDL_WindowID window;
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105
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106 void *driverdata;
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107 };
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108
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109 /* Define the SDL render driver structure */
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110 struct SDL_RenderDriver
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111 {
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112 SDL_Renderer *(*CreateRenderer) (SDL_Window * window, Uint32 flags);
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113
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114 /* Info about the renderer capabilities */
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115 SDL_RendererInfo info;
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116 };
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117
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118 /* Define the SDL window structure, corresponding to toplevel windows */
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119 struct SDL_Window
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120 {
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121 Uint32 id;
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122
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123 char *title;
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124 int x, y;
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125 int w, h;
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126 Uint32 flags;
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127
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128 int display;
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129 SDL_Renderer *renderer;
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130 SDL_GLContext context;
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131
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132 void *userdata;
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133 void *driverdata;
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134 };
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135 #define FULLSCREEN_VISIBLE(W) \
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136 (((W)->flags & SDL_WINDOW_FULLSCREEN) && \
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137 ((W)->flags & SDL_WINDOW_SHOWN) && \
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138 !((W)->flags & SDL_WINDOW_MINIMIZED))
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139
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140 /* Define the SDL display structure
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141 This corresponds to physical monitors attached to the system.
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142 */
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143 struct SDL_VideoDisplay
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144 {
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145 int max_display_modes;
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146 int num_display_modes;
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147 SDL_DisplayMode *display_modes;
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148 SDL_DisplayMode desktop_mode;
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149 SDL_DisplayMode current_mode;
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150 SDL_DisplayMode fullscreen_mode;
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151 SDL_Palette *palette;
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152
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153 Uint16 *gamma;
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154 Uint16 *saved_gamma; /* (just offset into gamma) */
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155
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156 int num_render_drivers;
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157 SDL_RenderDriver *render_drivers;
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158
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159 int num_windows;
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160 SDL_Window *windows;
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161
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162 SDL_Renderer *current_renderer;
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163
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164 /* The hash list of textures */
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165 SDL_Texture *textures[64];
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166
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167 SDL_VideoDevice *device;
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168
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169 void *driverdata;
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170 };
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171
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172 /* Define the SDL video driver structure */
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173 #define _THIS SDL_VideoDevice *_this
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174
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175 struct SDL_VideoDevice
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176 {
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177 /* * * */
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178 /* The name of this video driver */
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179 const char *name;
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180
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181 /* * * */
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182 /* Initialization/Query functions */
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183
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184 /* Initialize the native video subsystem, filling in the list
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185 of displays for this driver, returning 0 or -1 if there's an error.
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186 */
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187 int (*VideoInit) (_THIS);
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188
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189 /* Reverse the effects VideoInit() -- called if VideoInit() fails
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190 or if the application is shutting down the video subsystem.
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191 */
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192 void (*VideoQuit) (_THIS);
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193
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194 /* * * */
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195 /* Display functions
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196 */
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197
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198 /* Get a list of the available display modes.
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199 * e.g. SDL_AddDisplayMode(_this->current_display, mode)
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200 */
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201 void (*GetDisplayModes) (_THIS);
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202
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203 /* Setting the display mode is independent of creating windows,
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204 * so when the display mode is changed, all existing windows
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205 * should have their data updated accordingly, including the
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206 * display surfaces associated with them.
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207 */
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208 int (*SetDisplayMode) (_THIS, SDL_DisplayMode * mode);
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209
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210 /* Set the color entries of the display palette */
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211 int (*SetDisplayPalette) (_THIS, SDL_Palette * palette);
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212
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213 /* Get the color entries of the display palette */
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214 int (*GetDisplayPalette) (_THIS, SDL_Palette * palette);
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215
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216 /* Set the gamma ramp */
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217 int (*SetDisplayGammaRamp) (_THIS, Uint16 * ramp);
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218
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219 /* Get the gamma ramp */
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220 int (*GetDisplayGammaRamp) (_THIS, Uint16 * ramp);
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221
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222 /* * * */
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223 /* Window functions
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224 */
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225 int (*CreateWindow) (_THIS, SDL_Window * window);
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226 int (*CreateWindowFrom) (_THIS, SDL_Window * window, const void *data);
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227 void (*SetWindowTitle) (_THIS, SDL_Window * window);
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228 void (*SetWindowPosition) (_THIS, SDL_Window * window);
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229 void (*SetWindowSize) (_THIS, SDL_Window * window);
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230 void (*ShowWindow) (_THIS, SDL_Window * window);
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231 void (*HideWindow) (_THIS, SDL_Window * window);
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232 void (*RaiseWindow) (_THIS, SDL_Window * window);
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233 void (*MaximizeWindow) (_THIS, SDL_Window * window);
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234 void (*MinimizeWindow) (_THIS, SDL_Window * window);
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235 void (*RestoreWindow) (_THIS, SDL_Window * window);
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236 void (*SetWindowGrab) (_THIS, SDL_Window * window);
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237 void (*DestroyWindow) (_THIS, SDL_Window * window);
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238
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239 /* Get some platform dependent window information */
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240 SDL_bool(*GetWindowWMInfo) (_THIS, SDL_Window * window,
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241 struct SDL_SysWMinfo * info);
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242
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243 /* * * */
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244 /* OpenGL support
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245 */
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246 int (*GL_LoadLibrary) (_THIS, const char *path);
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247 void *(*GL_GetProcAddress) (_THIS, const char *proc);
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248 SDL_GLContext(*GL_CreateContext) (_THIS, SDL_Window * window);
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249 int (*GL_MakeCurrent) (_THIS, SDL_Window * window, SDL_GLContext context);
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250 int (*GL_SetSwapInterval) (_THIS, int interval);
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251 int (*GL_GetSwapInterval) (_THIS);
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252 void (*GL_SwapWindow) (_THIS, SDL_Window * window);
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253 void (*GL_DeleteContext) (_THIS, SDL_GLContext context);
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254
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255 /* * * */
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256 /* Event manager functions
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257 */
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258 void (*PumpEvents) (_THIS);
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259
2268
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260 /* Get the layout key code corresponding to the given physical key code
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261 * according to the OS' current keyboard layout.
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262 *
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263 * - For character keys, this should return the Unicode code point of the
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264 * character that is generated when the key is pressed without shift or
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265 * any other modifiers.
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266 * - For non-character keys, this should return one of the SDLK_* constants
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267 * (usually the argument itself since these keys are typically layout-
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268 * independent). Make sure that all of these values returned by this
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269 * function have a suitable name defined, either the default from
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270 * SDL_keynames.h, or one set using SDL_SetKeyName() in VideoInit(). In
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271 * particular, if this function can return any of the codes whose default
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272 * names start with "SDLK_" (usually, it shouldn't, since these are layout-
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273 * dependent character keys), these names should be replaced by proper
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274 * user-readable names.
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275 * - If there are keys that cannot be adequately described by either a
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276 * single Unicode character or an SDLK_* constant, this function may return
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277 * a code with SDL_KEY_LAYOUT_SPECIAL_BIT set in the most significant byte
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278 * and an arbitrary value in the less significant 3 bytes. The
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279 * GetSpecialKeyName() function must then be implemented to take this code
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280 * and return a human-readable key name for it.
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281 * If the argument is not a physical key code or if translation of the key
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282 * code by the OS' keyboard layout fails for any reason, the argument must
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283 * be returned unchanged.
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284 *
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285 * On platforms that don't have the notion of a user-configurable keyboard
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286 * layout, this may be left unimplemented. The default implementation of
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287 * SDL_GetLayoutKey() then acts as the identity. The note about defining
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288 * key names above particularly applies in this case.
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289 */
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290 SDLKey(*GetLayoutKey) (_THIS, SDLKey physicalKey);
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291
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292 /* Get a human-readable name for a special layout key code.
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293 * This only needs to be implemented if this driver's implementation of
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294 * GetLayoutKey() generates such codes (with SDL_KEY_LAYOUT_SPECIAL_BIT
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295 * set) - see above.
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296 */
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297 const char *(*GetSpecialKeyName) (_THIS, SDLKey layoutKey);
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298
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299 /* * * */
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300 /* Data common to all drivers */
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301 int num_displays;
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302 SDL_VideoDisplay *displays;
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303 int current_display;
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304 Uint32 next_object_id;
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305
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306 /* * * */
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307 /* Data used by the GL drivers */
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308 struct
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309 {
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310 int red_size;
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311 int green_size;
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312 int blue_size;
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313 int alpha_size;
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314 int depth_size;
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315 int buffer_size;
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316 int stencil_size;
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317 int double_buffer;
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318 int accum_red_size;
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319 int accum_green_size;
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320 int accum_blue_size;
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321 int accum_alpha_size;
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322 int stereo;
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323 int multisamplebuffers;
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324 int multisamplesamples;
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325 int accelerated;
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326 int driver_loaded;
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327 char driver_path[256];
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328 void *dll_handle;
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329 } gl_config;
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330
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331 /* * * */
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332 /* Data private to this driver */
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333 void *driverdata;
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334 struct SDL_GLDriverData *gl_data;
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335
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336 /* * * */
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337 /* The function used to dispose of this structure */
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338 void (*free) (_THIS);
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339 };
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340
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341 typedef struct VideoBootStrap
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342 {
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343 const char *name;
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344 const char *desc;
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345 int (*available) (void);
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346 SDL_VideoDevice *(*create) (int devindex);
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347 } VideoBootStrap;
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348
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349 #if SDL_VIDEO_DRIVER_COCOA
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350 extern VideoBootStrap COCOA_bootstrap;
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351 #endif
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352 #if SDL_VIDEO_DRIVER_X11
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353 extern VideoBootStrap X11_bootstrap;
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354 #endif
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355 #if SDL_VIDEO_DRIVER_NANOX
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356 extern VideoBootStrap NX_bootstrap;
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357 #endif
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358 #if SDL_VIDEO_DRIVER_IPOD
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359 extern VideoBootStrap iPod_bootstrap;
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360 #endif
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361 #if SDL_VIDEO_DRIVER_WSCONS
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362 extern VideoBootStrap WSCONS_bootstrap;
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363 #endif
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364 #if SDL_VIDEO_DRIVER_FBCON
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365 extern VideoBootStrap FBCON_bootstrap;
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366 #endif
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367 #if SDL_VIDEO_DRIVER_DIRECTFB
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368 extern VideoBootStrap DirectFB_bootstrap;
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369 #endif
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370 #if SDL_VIDEO_DRIVER_PS2GS
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371 extern VideoBootStrap PS2GS_bootstrap;
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372 #endif
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373 #if SDL_VIDEO_DRIVER_VGL
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374 extern VideoBootStrap VGL_bootstrap;
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375 #endif
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376 #if SDL_VIDEO_DRIVER_SVGALIB
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377 extern VideoBootStrap SVGALIB_bootstrap;
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378 #endif
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379 #if SDL_VIDEO_DRIVER_GAPI
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380 extern VideoBootStrap GAPI_bootstrap;
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381 #endif
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382 #if SDL_VIDEO_DRIVER_WIN32
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383 extern VideoBootStrap WIN32_bootstrap;
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384 #endif
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385 #if SDL_VIDEO_DRIVER_BWINDOW
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386 extern VideoBootStrap BWINDOW_bootstrap;
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387 #endif
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388 #if SDL_VIDEO_DRIVER_PHOTON
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389 extern VideoBootStrap ph_bootstrap;
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390 #endif
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391 #if SDL_VIDEO_DRIVER_EPOC
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392 extern VideoBootStrap EPOC_bootstrap;
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393 #endif
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394 #if SDL_VIDEO_DRIVER_XBIOS
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395 extern VideoBootStrap XBIOS_bootstrap;
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396 #endif
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397 #if SDL_VIDEO_DRIVER_GEM
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398 extern VideoBootStrap GEM_bootstrap;
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399 #endif
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400 #if SDL_VIDEO_DRIVER_DC
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401 extern VideoBootStrap DC_bootstrap;
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402 #endif
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403 #if SDL_VIDEO_DRIVER_RISCOS
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404 extern VideoBootStrap RISCOS_bootstrap;
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405 #endif
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406 #if SDL_VIDEO_DRIVER_OS2FS
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407 extern VideoBootStrap OS2FSLib_bootstrap;
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408 #endif
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409 #if SDL_VIDEO_DRIVER_DUMMY
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410 extern VideoBootStrap DUMMY_bootstrap;
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411 #endif
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412
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413 #define SDL_CurrentDisplay (_this->displays[_this->current_display])
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414
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415 extern SDL_VideoDevice *SDL_GetVideoDevice();
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416 extern int SDL_AddBasicVideoDisplay(const SDL_DisplayMode * desktop_mode);
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417 extern int SDL_AddVideoDisplay(const SDL_VideoDisplay * display);
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418 extern SDL_bool SDL_AddDisplayMode(int displayIndex,
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419 const SDL_DisplayMode * mode);
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420 extern void SDL_AddRenderDriver(int displayIndex,
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421 const SDL_RenderDriver * driver);
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422
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423 extern int SDL_RecreateWindow(SDL_Window * window, Uint32 flags);
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424 extern SDL_Window *SDL_GetWindowFromID(SDL_WindowID windowID);
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425 extern SDL_VideoDisplay *SDL_GetDisplayFromWindow(SDL_Window * window);
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426
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427 extern void SDL_OnWindowShown(SDL_Window * window);
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428 extern void SDL_OnWindowHidden(SDL_Window * window);
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429 extern void SDL_OnWindowResized(SDL_Window * window);
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430 extern void SDL_OnWindowFocusGained(SDL_Window * window);
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431 extern void SDL_OnWindowFocusLost(SDL_Window * window);
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432 extern SDL_WindowID SDL_GetFocusWindow(void);
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433
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434 #endif /* _SDL_sysvideo_h */
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435
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436 /* vi: set ts=4 sw=4 expandtab: */