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annotate src/video/SDL_sysvideo.h @ 1675:d33dcfc3fde7 SDL-1.3

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Overlay functions are being replaced by YUV textures. If the driver doesn't support YUV textures, they can be emulated by backing the texture with an RGB texture and using the software conversion routines. Note that it doesn't make sense to lock a portion of a YV12 texture, since you'd need to return three pixel pointers and pitch values instead of the one that's available through the API. I'm guessing that's one of the reasons DirectX 9 doesn't support this format at all.
author Sam Lantinga <slouken@libsdl.org>
date Sun, 11 Jun 2006 07:30:16 +0000
parents 624e1412fbba
children e136f3ffdc1b
rev   line source
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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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18
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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 #define SDL_PROTOTYPES_ONLY
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29 #include "SDL_syswm.h"
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30 #undef SDL_PROTOTYPES_ONLY
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31
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32 /* This file prototypes the video driver implementation.
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33 This is designed to be easily converted to C++ in the future.
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34 */
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35
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36 #if SDL_VIDEO_OPENGL
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37 #include "SDL_opengl.h"
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38 #endif /* SDL_VIDEO_OPENGL */
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39
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40 /* The SDL video driver */
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41
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42 typedef struct SDL_Window SDL_Window;
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43 typedef struct SDL_Texture SDL_Texture;
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44 typedef struct SDL_Renderer SDL_Renderer;
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45 typedef struct SDL_RenderDriver SDL_RenderDriver;
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46 typedef struct SDL_VideoDisplay SDL_VideoDisplay;
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47 typedef struct SDL_VideoDevice SDL_VideoDevice;
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48
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49 /* Define the SDL texture structure */
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50 struct SDL_Texture
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51 {
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52 Uint32 id;
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53
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54 Uint32 format; /**< The pixel format of the texture */
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55 int access; /**< SDL_TextureAccess */
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56 int w; /**< The width of the texture */
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57 int h; /**< The height of the texture */
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58
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59 SDL_Renderer *renderer;
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60
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61 void *driverdata; /**< Driver specific texture representation */
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62
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63 SDL_Texture *next;
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64 };
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65
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66 /* Define the SDL renderer structure */
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67 struct SDL_Renderer
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68 {
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69 int (*CreateTexture) (SDL_Texture * texture);
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70 int (*UpdateTexture) (SDL_Texture * texture, SDL_Rect * rect,
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71 const void *pixels, int pitch);
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72 int (*LockTexture) (SDL_Texture * texture, SDL_Rect * rect, int markDirty,
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73 void **pixels, int *pitch);
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74 void (*UnlockTexture) (SDL_Texture * texture);
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75 void (*DirtyTexture) (SDL_Texture * texture, int numrects,
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76 SDL_Rect * rects);
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77 void (*SelectRenderTexture) (SDL_Texture * texture);
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78 void (*RenderFill) (SDL_Rect * rect, Uint32 color);
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79 int (*RenderCopy) (SDL_Texture * texture, SDL_Rect * srcrect,
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80 SDL_Rect * dstrect, int blendMode, int scaleMode);
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81 int (*RenderReadPixels) (SDL_Rect * rect, void *pixels, int pitch);
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82 int (*RenderWritePixels) (SDL_Rect * rect, const void *pixels, int pitch);
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83 void (*RenderPresent) (void);
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84 void (*DestroyTexture) (SDL_Texture * texture);
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85
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86 void (*DestroyRenderer) (SDL_Renderer * renderer);
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87
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88 /* The current renderer info */
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89 SDL_RendererInfo info;
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90
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91 /* The window associated with the renderer */
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92 SDL_Window *window;
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93
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94 void *driverdata;
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95 };
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96
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97 /* Define the SDL render driver structure */
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98 struct SDL_RenderDriver
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99 {
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100 SDL_Renderer *(*CreateRenderer) (SDL_Window * window, Uint32 flags);
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101
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102 /* Info about the renderer capabilities */
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103 SDL_RendererInfo info;
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104 };
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105
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106 /* Define the SDL window structure, corresponding to toplevel windows */
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107 struct SDL_Window
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108 {
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109 Uint32 id;
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110
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111 char *title;
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112 int x, y;
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113 int w, h;
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114 Uint32 flags;
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115
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116 Uint16 *gamma;
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117
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118 SDL_Renderer *renderer;
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119
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120 void *userdata;
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121 void *driverdata;
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122 };
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123
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124 /* Define the SDL display structure
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125 This corresponds to physical monitors attached to the system.
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126 */
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127 struct SDL_VideoDisplay
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128 {
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129 int num_display_modes;
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130 SDL_DisplayMode *display_modes;
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131 SDL_DisplayMode desktop_mode;
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132 SDL_DisplayMode current_mode;
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133
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134 int num_render_drivers;
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135 SDL_RenderDriver *render_drivers;
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136
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137 int num_windows;
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138 SDL_Window *windows;
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139
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140 SDL_Renderer *current_renderer;
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141
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142 /* The hash list of textures */
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143 SDL_Texture *textures[64];
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145 void *driverdata;
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146 };
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147
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148 /* Define the SDL video driver structure */
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149 #define _THIS SDL_VideoDevice *_this
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150
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151 struct SDL_VideoDevice
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152 {
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153 /* * * */
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154 /* The name of this video driver */
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155 const char *name;
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156
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157 /* * * */
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158 /* Initialization/Query functions */
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159
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160 /* Initialize the native video subsystem, filling in the list
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161 of displays for this driver, returning 0 or -1 if there's an error.
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162 */
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163 int (*VideoInit) (_THIS);
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164
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165 /* * * */
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166 /* Display functions
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167 */
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168 /* Setting the display mode is independent of creating windows,
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169 * so when the display mode is changed, all existing windows
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170 * should have their data updated accordingly, including the
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171 * display surfaces associated with them.
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172 */
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173 int (*SetDisplayMode) (_THIS, const SDL_DisplayMode * mode);
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174
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175 /* Sets the color entries { firstcolor .. (firstcolor+ncolors-1) }
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176 of the physical palette to those in 'colors'. The return value
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177 is 0 if all entries could be set properly or -1 otherwise.
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178 */
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179 int (*SetDisplayColors) (_THIS, int firstcolor, int ncolors,
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180 SDL_Color * colors);
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181
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182 /* * * */
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183 /* Window functions
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184 */
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185 int (*CreateWindow) (_THIS, SDL_Window * window);
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186 int (*CreateWindowFrom) (_THIS, SDL_Window * window, void *data);
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187 void (*SetWindowTitle) (_THIS, SDL_Window * window);
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188 void (*SetWindowPosition) (_THIS, SDL_Window * window);
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189 void (*SetWindowSize) (_THIS, SDL_Window * window);
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190 void (*ShowWindow) (_THIS, SDL_Window * window);
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191 void (*HideWindow) (_THIS, SDL_Window * window);
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192 void (*RaiseWindow) (_THIS, SDL_Window * window);
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193 void (*MaximizeWindow) (_THIS, SDL_Window * window);
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194 void (*MinimizeWindow) (_THIS, SDL_Window * window);
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195 void (*RestoreWindow) (_THIS, SDL_Window * window);
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196 void (*SetWindowGrab) (_THIS, SDL_Window * window);
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197 void (*DestroyWindow) (_THIS, SDL_Window * window);
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198
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199 /* Get some platform dependent window information */
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200 SDL_bool(*GetWindowWMInfo) (_THIS, SDL_Window * window,
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201 SDL_SysWMinfo * info);
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202
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203 /* Reverse the effects VideoInit() -- called if VideoInit() fails
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204 or if the application is shutting down the video subsystem.
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205 */
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206 void (*VideoQuit) (_THIS);
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207
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208 /* * * */
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209 /* Gamma support */
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210
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211 /* Set the gamma correction directly (emulated with gamma ramps) */
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212 int (*SetGamma) (_THIS, float red, float green, float blue);
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213
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214 /* Get the gamma correction directly (emulated with gamma ramps) */
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215 int (*GetGamma) (_THIS, float *red, float *green, float *blue);
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216
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217 /* Set the gamma ramp */
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218 int (*SetGammaRamp) (_THIS, Uint16 * ramp);
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219
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220 /* Get the gamma ramp */
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221 int (*GetGammaRamp) (_THIS, Uint16 * ramp);
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222
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223 /* * * */
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224 /* OpenGL support */
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225
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226 /* Sets the dll to use for OpenGL and loads it */
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227 int (*GL_LoadLibrary) (_THIS, const char *path);
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228
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229 /* Retrieves the address of a function in the gl library */
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230 void *(*GL_GetProcAddress) (_THIS, const char *proc);
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231
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232 /* Get attribute information from the windowing system. */
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233 int (*GL_GetAttribute) (_THIS, SDL_GLattr attrib, int *value);
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234
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235 /* Make the context associated with this driver current */
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236 int (*GL_MakeCurrent) (_THIS);
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237
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238 /* Swap the current buffers in double buffer mode. */
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239 void (*GL_SwapBuffers) (_THIS);
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240
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241 /* OpenGL functions for glSDL */
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242 #if SDL_VIDEO_OPENGL
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243 #if !defined(__WIN32__)
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244 #define WINAPI
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245 #endif
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246 #define SDL_PROC(ret,func,params) ret (WINAPI *func) params;
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247 #include "SDL_glfuncs.h"
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248 #undef SDL_PROC
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249
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250 /* Texture id */
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251 GLuint texture;
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252
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253 int is_32bit;
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254 #endif
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255
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256 /* Determine whether the mouse should be in relative mode or not.
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257 This function is called when the input grab state or cursor
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258 visibility state changes.
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259 If the cursor is not visible, and the input is grabbed, the
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260 driver can place the mouse in relative mode, which may result
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261 in higher accuracy sampling of the pointer motion.
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262 */
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263 void (*CheckMouseMode) (_THIS);
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264
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265 /* * * */
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266 /* Event manager functions */
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267
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268 /* Handle any queued OS events */
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269 void (*PumpEvents) (_THIS);
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270
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271 /* * * */
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272 /* Data common to all drivers */
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273 int num_displays;
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274 SDL_VideoDisplay *displays;
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275 int current_display;
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276 Uint32 next_object_id;
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277
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278 /* Driver information flags */
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279
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280 /* * * */
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281 /* Data used by the GL drivers */
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282 struct
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283 {
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284 int red_size;
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285 int green_size;
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286 int blue_size;
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287 int alpha_size;
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288 int depth_size;
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289 int buffer_size;
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290 int stencil_size;
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291 int double_buffer;
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292 int accum_red_size;
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293 int accum_green_size;
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294 int accum_blue_size;
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295 int accum_alpha_size;
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296 int stereo;
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297 int multisamplebuffers;
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298 int multisamplesamples;
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299 int accelerated;
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300 int swap_control;
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301 int driver_loaded;
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302 char driver_path[256];
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303 void *dll_handle;
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304 } gl_config;
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305
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306 /* * * */
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307 /* Data private to this driver */
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308 struct SDL_PrivateVideoData *hidden;
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309 struct SDL_PrivateGLData *gl_data;
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310
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311 /* * * */
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312 /* The function used to dispose of this structure */
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313 void (*free) (_THIS);
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314 };
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315 #undef _THIS
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316
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317 typedef struct VideoBootStrap
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318 {
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319 const char *name;
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320 const char *desc;
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321 int (*available) (void);
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322 SDL_VideoDevice *(*create) (int devindex);
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323 } VideoBootStrap;
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324
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325 #if SDL_VIDEO_DRIVER_QUARTZ
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326 extern VideoBootStrap QZ_bootstrap;
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327 #endif
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328 #if SDL_VIDEO_DRIVER_X11
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329 extern VideoBootStrap X11_bootstrap;
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330 #endif
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331 #if SDL_VIDEO_DRIVER_DGA
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332 extern VideoBootStrap DGA_bootstrap;
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333 #endif
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334 #if SDL_VIDEO_DRIVER_NANOX
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335 extern VideoBootStrap NX_bootstrap;
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336 #endif
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337 #if SDL_VIDEO_DRIVER_IPOD
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338 extern VideoBootStrap iPod_bootstrap;
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339 #endif
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340 #if SDL_VIDEO_DRIVER_QTOPIA
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341 extern VideoBootStrap Qtopia_bootstrap;
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342 #endif
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343 #if SDL_VIDEO_DRIVER_WSCONS
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344 extern VideoBootStrap WSCONS_bootstrap;
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345 #endif
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346 #if SDL_VIDEO_DRIVER_FBCON
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347 extern VideoBootStrap FBCON_bootstrap;
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348 #endif
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349 #if SDL_VIDEO_DRIVER_DIRECTFB
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350 extern VideoBootStrap DirectFB_bootstrap;
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351 #endif
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352 #if SDL_VIDEO_DRIVER_PS2GS
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353 extern VideoBootStrap PS2GS_bootstrap;
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354 #endif
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355 #if SDL_VIDEO_DRIVER_GGI
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356 extern VideoBootStrap GGI_bootstrap;
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357 #endif
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358 #if SDL_VIDEO_DRIVER_VGL
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359 extern VideoBootStrap VGL_bootstrap;
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360 #endif
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361 #if SDL_VIDEO_DRIVER_SVGALIB
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362 extern VideoBootStrap SVGALIB_bootstrap;
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363 #endif
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364 #if SDL_VIDEO_DRIVER_GAPI
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365 extern VideoBootStrap GAPI_bootstrap;
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366 #endif
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367 #if SDL_VIDEO_DRIVER_WINDIB
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368 extern VideoBootStrap WINDIB_bootstrap;
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369 #endif
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370 #if SDL_VIDEO_DRIVER_DDRAW
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371 extern VideoBootStrap DIRECTX_bootstrap;
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372 #endif
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373 #if SDL_VIDEO_DRIVER_BWINDOW
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374 extern VideoBootStrap BWINDOW_bootstrap;
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375 #endif
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376 #if SDL_VIDEO_DRIVER_TOOLBOX
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377 extern VideoBootStrap TOOLBOX_bootstrap;
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378 #endif
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379 #if SDL_VIDEO_DRIVER_DRAWSPROCKET
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380 extern VideoBootStrap DSp_bootstrap;
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381 #endif
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382 #if SDL_VIDEO_DRIVER_CYBERGRAPHICS
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383 extern VideoBootStrap CGX_bootstrap;
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384 #endif
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385 #if SDL_VIDEO_DRIVER_PHOTON
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386 extern VideoBootStrap ph_bootstrap;
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387 #endif
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388 #if SDL_VIDEO_DRIVER_EPOC
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389 extern VideoBootStrap EPOC_bootstrap;
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390 #endif
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391 #if SDL_VIDEO_DRIVER_XBIOS
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392 extern VideoBootStrap XBIOS_bootstrap;
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393 #endif
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394 #if SDL_VIDEO_DRIVER_GEM
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395 extern VideoBootStrap GEM_bootstrap;
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396 #endif
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397 #if SDL_VIDEO_DRIVER_PICOGUI
433
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398 extern VideoBootStrap PG_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_AALIB
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410 extern VideoBootStrap AALIB_bootstrap;
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411 #endif
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412 #if SDL_VIDEO_DRIVER_DUMMY
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413 extern VideoBootStrap DUMMY_bootstrap;
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414 #endif
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e49147870aac glSDL support
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parents: 1656
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415 #if SDL_VIDEO_DRIVER_GLSDL
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416 extern VideoBootStrap glSDL_bootstrap;
e49147870aac glSDL support
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417 #endif
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418
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419 #define SDL_CurrentDisplay (_this->displays[_this->current_display])
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420 #define SDL_CurrentWindow (SDL_CurrentDisplay.windows[0])
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421
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422 extern SDL_VideoDevice *SDL_GetVideoDevice();
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423 extern void SDL_AddBasicVideoDisplay(const SDL_DisplayMode * desktop_mode);
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9857d21967bb The test programs compile again.
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424 extern void SDL_AddVideoDisplay(const SDL_VideoDisplay * display);
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eef792d31de8 Work in progress. :)
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425 extern void SDL_AddDisplayMode(int displayIndex,
eef792d31de8 Work in progress. :)
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426 const SDL_DisplayMode * mode);
eef792d31de8 Work in progress. :)
Sam Lantinga <slouken@libsdl.org>
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427 extern void SDL_AddRenderDriver(int displayIndex,
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428 const SDL_RenderDriver * driver);
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429
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430 #endif /* _SDL_sysvideo_h */
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diff changeset
431
782fd950bd46 Revamp of the video system in progress - adding support for multiple displays, multiple windows, and a full video mode selection API.
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432 /* vi: set ts=4 sw=4 expandtab: */