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annotate src/video/SDL_sysvideo.h @ 1676:e136f3ffdc1b SDL-1.3

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Adding software renderer implementation
author Sam Lantinga <slouken@libsdl.org>
date Mon, 12 Jun 2006 09:10:06 +0000
parents d33dcfc3fde7
children 5e4c5e095925
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_Renderer * renderer, SDL_Texture * texture);
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70 int (*UpdateTexture) (SDL_Renderer * renderer, SDL_Texture * texture,
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71 SDL_Rect * rect, const void *pixels, int pitch);
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72 int (*LockTexture) (SDL_Renderer * renderer, SDL_Texture * texture,
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73 SDL_Rect * rect, int markDirty, void **pixels,
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74 int *pitch);
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75 void (*UnlockTexture) (SDL_Renderer * renderer, SDL_Texture * texture);
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76 void (*DirtyTexture) (SDL_Renderer * renderer, SDL_Texture * texture,
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77 int numrects, SDL_Rect * rects);
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78 void (*SelectRenderTexture) (SDL_Renderer * renderer,
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79 SDL_Texture * texture);
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80 void (*RenderFill) (SDL_Renderer * renderer, SDL_Rect * rect,
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81 Uint32 color);
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82 int (*RenderCopy) (SDL_Renderer * renderer, SDL_Texture * texture,
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83 SDL_Rect * srcrect, SDL_Rect * dstrect, int blendMode,
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84 int scaleMode);
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85 int (*RenderReadPixels) (SDL_Renderer * renderer, SDL_Rect * rect,
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86 void *pixels, int pitch);
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87 int (*RenderWritePixels) (SDL_Renderer * renderer, SDL_Rect * rect,
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88 const void *pixels, int pitch);
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89 void (*RenderPresent) (SDL_Renderer * renderer);
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90 void (*DestroyTexture) (SDL_Renderer * renderer, SDL_Texture * texture);
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91
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92 void (*DestroyRenderer) (SDL_Renderer * renderer);
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93
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94 /* The current renderer info */
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95 SDL_RendererInfo info;
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96
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97 /* The window associated with the renderer */
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98 SDL_Window *window;
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99
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100 void *driverdata;
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101 };
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102
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103 /* Define the SDL render driver structure */
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104 struct SDL_RenderDriver
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105 {
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106 SDL_Renderer *(*CreateRenderer) (SDL_Window * window, Uint32 flags);
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107
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108 /* Info about the renderer capabilities */
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109 SDL_RendererInfo info;
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110 };
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111
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112 /* Define the SDL window structure, corresponding to toplevel windows */
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113 struct SDL_Window
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114 {
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115 Uint32 id;
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116
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117 char *title;
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118 int x, y;
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119 int w, h;
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120 Uint32 flags;
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121
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122 Uint16 *gamma;
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123
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124 SDL_VideoDisplay *display;
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125 SDL_Renderer *renderer;
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126
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127 void *userdata;
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128 void *driverdata;
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129 };
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130
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131 /* Define the SDL display structure
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132 This corresponds to physical monitors attached to the system.
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133 */
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134 struct SDL_VideoDisplay
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135 {
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136 int num_display_modes;
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137 SDL_DisplayMode *display_modes;
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138 SDL_DisplayMode desktop_mode;
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139 SDL_DisplayMode current_mode;
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140
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141 int num_render_drivers;
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142 SDL_RenderDriver *render_drivers;
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143
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144 int num_windows;
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145 SDL_Window *windows;
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146
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147 SDL_Renderer *current_renderer;
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148
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149 /* The hash list of textures */
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150 SDL_Texture *textures[64];
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151
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152 void *driverdata;
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153 };
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154
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155 /* Define the SDL video driver structure */
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156 #define _THIS SDL_VideoDevice *_this
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157
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158 struct SDL_VideoDevice
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159 {
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160 /* * * */
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161 /* The name of this video driver */
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162 const char *name;
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163
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164 /* * * */
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165 /* Initialization/Query functions */
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166
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167 /* Initialize the native video subsystem, filling in the list
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168 of displays for this driver, returning 0 or -1 if there's an error.
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169 */
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170 int (*VideoInit) (_THIS);
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171
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172 /* * * */
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173 /* Display functions
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174 */
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175 /* Setting the display mode is independent of creating windows,
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176 * so when the display mode is changed, all existing windows
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177 * should have their data updated accordingly, including the
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178 * display surfaces associated with them.
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179 */
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180 int (*SetDisplayMode) (_THIS, const SDL_DisplayMode * mode);
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181
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182 /* Sets the color entries { firstcolor .. (firstcolor+ncolors-1) }
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183 of the physical palette to those in 'colors'. The return value
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184 is 0 if all entries could be set properly or -1 otherwise.
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185 */
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186 int (*SetDisplayColors) (_THIS, int firstcolor, int ncolors,
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187 SDL_Color * colors);
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188
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189 /* * * */
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190 /* Window functions
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191 */
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192 int (*CreateWindow) (_THIS, SDL_Window * window);
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193 int (*CreateWindowFrom) (_THIS, SDL_Window * window, void *data);
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194 void (*SetWindowTitle) (_THIS, SDL_Window * window);
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195 void (*SetWindowPosition) (_THIS, SDL_Window * window);
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196 void (*SetWindowSize) (_THIS, SDL_Window * window);
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197 void (*ShowWindow) (_THIS, SDL_Window * window);
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198 void (*HideWindow) (_THIS, SDL_Window * window);
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199 void (*RaiseWindow) (_THIS, SDL_Window * window);
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200 void (*MaximizeWindow) (_THIS, SDL_Window * window);
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201 void (*MinimizeWindow) (_THIS, SDL_Window * window);
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202 void (*RestoreWindow) (_THIS, SDL_Window * window);
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203 void (*SetWindowGrab) (_THIS, SDL_Window * window);
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204 void (*DestroyWindow) (_THIS, SDL_Window * window);
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205
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206 /* Get some platform dependent window information */
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207 SDL_bool(*GetWindowWMInfo) (_THIS, SDL_Window * window,
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208 SDL_SysWMinfo * info);
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209
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210 /* Reverse the effects VideoInit() -- called if VideoInit() fails
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211 or if the application is shutting down the video subsystem.
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212 */
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213 void (*VideoQuit) (_THIS);
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214
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215 /* * * */
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216 /* Gamma support */
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217
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218 /* Set the gamma correction directly (emulated with gamma ramps) */
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219 int (*SetGamma) (_THIS, float red, float green, float blue);
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220
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221 /* Get the gamma correction directly (emulated with gamma ramps) */
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222 int (*GetGamma) (_THIS, float *red, float *green, float *blue);
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223
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224 /* Set the gamma ramp */
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225 int (*SetGammaRamp) (_THIS, Uint16 * ramp);
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226
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227 /* Get the gamma ramp */
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228 int (*GetGammaRamp) (_THIS, Uint16 * ramp);
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229
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230 /* * * */
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231 /* OpenGL support */
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232
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233 /* Sets the dll to use for OpenGL and loads it */
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234 int (*GL_LoadLibrary) (_THIS, const char *path);
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235
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236 /* Retrieves the address of a function in the gl library */
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237 void *(*GL_GetProcAddress) (_THIS, const char *proc);
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238
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239 /* Get attribute information from the windowing system. */
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240 int (*GL_GetAttribute) (_THIS, SDL_GLattr attrib, int *value);
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241
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242 /* Make the context associated with this driver current */
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243 int (*GL_MakeCurrent) (_THIS);
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244
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245 /* Swap the current buffers in double buffer mode. */
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246 void (*GL_SwapBuffers) (_THIS);
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247
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248 /* OpenGL functions for glSDL */
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249 #if SDL_VIDEO_OPENGL
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250 #if !defined(__WIN32__)
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251 #define WINAPI
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252 #endif
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253 #define SDL_PROC(ret,func,params) ret (WINAPI *func) params;
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254 #include "SDL_glfuncs.h"
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255 #undef SDL_PROC
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256
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257 /* Texture id */
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258 GLuint texture;
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259
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260 int is_32bit;
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261 #endif
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262
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263 /* Determine whether the mouse should be in relative mode or not.
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264 This function is called when the input grab state or cursor
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265 visibility state changes.
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266 If the cursor is not visible, and the input is grabbed, the
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267 driver can place the mouse in relative mode, which may result
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268 in higher accuracy sampling of the pointer motion.
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269 */
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270 void (*CheckMouseMode) (_THIS);
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271
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272 /* * * */
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273 /* Event manager functions */
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274
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275 /* Handle any queued OS events */
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276 void (*PumpEvents) (_THIS);
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277
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278 /* * * */
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279 /* Data common to all drivers */
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280 int num_displays;
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281 SDL_VideoDisplay *displays;
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282 int current_display;
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283 Uint32 next_object_id;
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284
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285 /* Driver information flags */
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286
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287 /* * * */
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288 /* Data used by the GL drivers */
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289 struct
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290 {
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291 int red_size;
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292 int green_size;
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293 int blue_size;
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294 int alpha_size;
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295 int depth_size;
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296 int buffer_size;
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297 int stencil_size;
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298 int double_buffer;
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299 int accum_red_size;
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300 int accum_green_size;
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301 int accum_blue_size;
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302 int accum_alpha_size;
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303 int stereo;
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304 int multisamplebuffers;
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305 int multisamplesamples;
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306 int accelerated;
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307 int swap_control;
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308 int driver_loaded;
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309 char driver_path[256];
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310 void *dll_handle;
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311 } gl_config;
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312
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313 /* * * */
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314 /* Data private to this driver */
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315 struct SDL_PrivateVideoData *hidden;
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316 struct SDL_PrivateGLData *gl_data;
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317
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318 /* * * */
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319 /* The function used to dispose of this structure */
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320 void (*free) (_THIS);
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321 };
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322 #undef _THIS
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323
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324 typedef struct VideoBootStrap
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325 {
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326 const char *name;
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327 const char *desc;
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328 int (*available) (void);
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329 SDL_VideoDevice *(*create) (int devindex);
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330 } VideoBootStrap;
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331
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332 #if SDL_VIDEO_DRIVER_QUARTZ
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333 extern VideoBootStrap QZ_bootstrap;
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334 #endif
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335 #if SDL_VIDEO_DRIVER_X11
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336 extern VideoBootStrap X11_bootstrap;
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337 #endif
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338 #if SDL_VIDEO_DRIVER_DGA
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339 extern VideoBootStrap DGA_bootstrap;
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340 #endif
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341 #if SDL_VIDEO_DRIVER_NANOX
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342 extern VideoBootStrap NX_bootstrap;
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343 #endif
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344 #if SDL_VIDEO_DRIVER_IPOD
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345 extern VideoBootStrap iPod_bootstrap;
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346 #endif
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347 #if SDL_VIDEO_DRIVER_QTOPIA
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348 extern VideoBootStrap Qtopia_bootstrap;
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349 #endif
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350 #if SDL_VIDEO_DRIVER_WSCONS
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351 extern VideoBootStrap WSCONS_bootstrap;
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352 #endif
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353 #if SDL_VIDEO_DRIVER_FBCON
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354 extern VideoBootStrap FBCON_bootstrap;
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355 #endif
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356 #if SDL_VIDEO_DRIVER_DIRECTFB
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357 extern VideoBootStrap DirectFB_bootstrap;
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358 #endif
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359 #if SDL_VIDEO_DRIVER_PS2GS
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360 extern VideoBootStrap PS2GS_bootstrap;
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361 #endif
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362 #if SDL_VIDEO_DRIVER_GGI
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363 extern VideoBootStrap GGI_bootstrap;
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364 #endif
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365 #if SDL_VIDEO_DRIVER_VGL
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366 extern VideoBootStrap VGL_bootstrap;
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367 #endif
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368 #if SDL_VIDEO_DRIVER_SVGALIB
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369 extern VideoBootStrap SVGALIB_bootstrap;
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370 #endif
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371 #if SDL_VIDEO_DRIVER_GAPI
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372 extern VideoBootStrap GAPI_bootstrap;
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373 #endif
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374 #if SDL_VIDEO_DRIVER_WINDIB
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375 extern VideoBootStrap WINDIB_bootstrap;
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376 #endif
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377 #if SDL_VIDEO_DRIVER_DDRAW
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378 extern VideoBootStrap DIRECTX_bootstrap;
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379 #endif
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380 #if SDL_VIDEO_DRIVER_BWINDOW
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381 extern VideoBootStrap BWINDOW_bootstrap;
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382 #endif
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383 #if SDL_VIDEO_DRIVER_TOOLBOX
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384 extern VideoBootStrap TOOLBOX_bootstrap;
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385 #endif
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386 #if SDL_VIDEO_DRIVER_DRAWSPROCKET
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387 extern VideoBootStrap DSp_bootstrap;
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388 #endif
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389 #if SDL_VIDEO_DRIVER_CYBERGRAPHICS
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390 extern VideoBootStrap CGX_bootstrap;
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391 #endif
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392 #if SDL_VIDEO_DRIVER_PHOTON
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393 extern VideoBootStrap ph_bootstrap;
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394 #endif
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395 #if SDL_VIDEO_DRIVER_EPOC
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396 extern VideoBootStrap EPOC_bootstrap;
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397 #endif
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398 #if SDL_VIDEO_DRIVER_XBIOS
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399 extern VideoBootStrap XBIOS_bootstrap;
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400 #endif
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401 #if SDL_VIDEO_DRIVER_GEM
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402 extern VideoBootStrap GEM_bootstrap;
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403 #endif
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404 #if SDL_VIDEO_DRIVER_PICOGUI
433
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405 extern VideoBootStrap PG_bootstrap;
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406 #endif
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407 #if SDL_VIDEO_DRIVER_DC
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408 extern VideoBootStrap DC_bootstrap;
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409 #endif
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410 #if SDL_VIDEO_DRIVER_RISCOS
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411 extern VideoBootStrap RISCOS_bootstrap;
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412 #endif
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413 #if SDL_VIDEO_DRIVER_OS2FS
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414 extern VideoBootStrap OS2FSLib_bootstrap;
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415 #endif
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416 #if SDL_VIDEO_DRIVER_AALIB
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417 extern VideoBootStrap AALIB_bootstrap;
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418 #endif
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419 #if SDL_VIDEO_DRIVER_DUMMY
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420 extern VideoBootStrap DUMMY_bootstrap;
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421 #endif
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422 #if SDL_VIDEO_DRIVER_GLSDL
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423 extern VideoBootStrap glSDL_bootstrap;
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424 #endif
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425
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426 #define SDL_CurrentDisplay (_this->displays[_this->current_display])
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427 #define SDL_CurrentWindow (SDL_CurrentDisplay.windows[0])
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428
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429 extern SDL_VideoDevice *SDL_GetVideoDevice();
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430 extern void SDL_AddBasicVideoDisplay(const SDL_DisplayMode * desktop_mode);
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431 extern void SDL_AddVideoDisplay(const SDL_VideoDisplay * display);
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432 extern void SDL_AddDisplayMode(int displayIndex,
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433 const SDL_DisplayMode * mode);
eef792d31de8 Work in progress. :)
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434 extern void SDL_AddRenderDriver(int displayIndex,
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435 const SDL_RenderDriver * driver);
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436
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437 #endif /* _SDL_sysvideo_h */
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438
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439 /* vi: set ts=4 sw=4 expandtab: */