Mercurial > sdl-ios-xcode
annotate include/SDL_video.h @ 1683:396a35389351 SDL-1.3
Finished palettized display handling.
Added support for surface palette sharing.
| author | Sam Lantinga <slouken@libsdl.org> |
|---|---|
| date | Sat, 17 Jun 2006 06:45:14 +0000 |
| parents | 7ae8018b2e5d |
| children | 1577404809f0 |
| rev | line source |
|---|---|
| 0 | 1 /* |
| 2 SDL - Simple DirectMedia Layer | |
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3 Copyright (C) 1997-2006 Sam Lantinga |
| 0 | 4 |
| 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 |
| 0 | 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. |
| 0 | 9 |
| 10 This library is distributed in the hope that it will be useful, | |
| 11 but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
|
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13 Lesser General Public License for more details. |
| 0 | 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 |
| 0 | 18 |
| 19 Sam Lantinga | |
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20 slouken@libsdl.org |
| 0 | 21 */ |
| 22 | |
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23 /** |
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24 * \file SDL_video.h |
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25 * |
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26 * Header file for access to the SDL raw framebuffer window |
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27 */ |
| 0 | 28 |
| 29 #ifndef _SDL_video_h | |
| 30 #define _SDL_video_h | |
| 31 | |
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32 #include "SDL_stdinc.h" |
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33 #include "SDL_error.h" |
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34 #include "SDL_pixels.h" |
| 0 | 35 #include "SDL_rwops.h" |
| 36 | |
| 37 #include "begin_code.h" | |
| 38 /* Set up for C function definitions, even when using C++ */ | |
| 39 #ifdef __cplusplus | |
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40 /* *INDENT-OFF* */ |
| 0 | 41 extern "C" { |
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42 /* *INDENT-ON* */ |
| 0 | 43 #endif |
| 44 | |
| 45 /* Transparency definitions: These define alpha as the opacity of a surface */ | |
| 46 #define SDL_ALPHA_OPAQUE 255 | |
| 47 #define SDL_ALPHA_TRANSPARENT 0 | |
| 48 | |
| 1670 | 49 /** |
| 50 * \struct SDL_Rect | |
| 51 * | |
| 52 * \brief A rectangle, with the origin at the upper left. | |
| 53 */ | |
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54 typedef struct SDL_Rect |
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55 { |
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56 Sint16 x, y; |
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57 Uint16 w, h; |
| 0 | 58 } SDL_Rect; |
| 59 | |
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60 /** |
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61 * \struct SDL_DisplayMode |
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62 * |
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63 * \brief The structure that defines a display mode |
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64 * |
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65 * \sa SDL_GetNumDisplayModes() |
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66 * \sa SDL_GetDisplayMode() |
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67 * \sa SDL_GetDesktopDisplayMode() |
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68 * \sa SDL_GetCurrentDisplayMode() |
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69 * \sa SDL_GetClosestDisplayMode() |
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70 * \sa SDL_SetDisplayMode() |
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71 */ |
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72 typedef struct |
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73 { |
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74 Uint32 format; /**< pixel format */ |
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75 int w; /**< width */ |
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76 int h; /**< height */ |
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77 int refresh_rate; /**< refresh rate (or zero for unspecified) */ |
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78 } SDL_DisplayMode; |
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79 |
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80 /** |
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81 * \typedef SDL_WindowID |
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82 * |
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83 * \brief The type used to identify a window |
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84 * |
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85 * \sa SDL_CreateWindow() |
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86 * \sa SDL_CreateWindowFrom() |
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87 * \sa SDL_DestroyWindow() |
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88 * \sa SDL_GetWindowData() |
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89 * \sa SDL_GetWindowFlags() |
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90 * \sa SDL_GetWindowGrab() |
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91 * \sa SDL_GetWindowPosition() |
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92 * \sa SDL_GetWindowSize() |
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93 * \sa SDL_GetWindowTitle() |
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94 * \sa SDL_HideWindow() |
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95 * \sa SDL_MaximizeWindow() |
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96 * \sa SDL_MinimizeWindow() |
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97 * \sa SDL_RaiseWindow() |
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98 * \sa SDL_RestoreWindow() |
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99 * \sa SDL_SetWindowData() |
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100 * \sa SDL_SetWindowGrab() |
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101 * \sa SDL_SetWindowIcon() |
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102 * \sa SDL_SetWindowPosition() |
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103 * \sa SDL_SetWindowSize() |
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104 * \sa SDL_SetWindowTitle() |
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105 * \sa SDL_ShowWindow() |
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106 */ |
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107 typedef Uint32 SDL_WindowID; |
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108 |
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109 /** |
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110 * \enum SDL_WindowFlags |
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111 * |
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112 * \brief The flags on a window |
| 1670 | 113 * |
| 114 * \sa SDL_GetWindowFlags() | |
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115 */ |
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116 typedef enum |
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117 { |
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118 SDL_WINDOW_FULLSCREEN = 0x00000001, /**< fullscreen window, implies borderless */ |
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119 SDL_WINDOW_BORDERLESS = 0x00000002, /**< no window decoration */ |
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120 SDL_WINDOW_SHOWN = 0x00000004, /**< window is visible */ |
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121 SDL_WINDOW_OPENGL = 0x00000008, /**< window usable with OpenGL context */ |
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122 SDL_WINDOW_RESIZABLE = 0x00000010, /**< window can be resized */ |
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123 SDL_WINDOW_MAXIMIZED = 0x00000020, /**< maximized */ |
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124 SDL_WINDOW_MINIMIZED = 0x00000040, /**< minimized */ |
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125 SDL_WINDOW_INPUT_GRABBED = 0x00000080, /**< window has grabbed input focus */ |
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126 SDL_WINDOW_KEYBOARD_FOCUS = 0x00000100, /**< window has keyboard focus */ |
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127 SDL_WINDOW_MOUSE_FOCUS = 0x00000200, /**< window has mouse focus */ |
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128 } SDL_WindowFlags; |
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129 |
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130 /** |
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131 * \enum SDL_WindowEventID |
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132 * |
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133 * \brief Event subtype for window events |
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134 */ |
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135 typedef enum |
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136 { |
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137 SDL_WINDOWEVENT_NONE, /**< Never used */ |
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138 SDL_WINDOWEVENT_SHOWN, /**< Window has been shown */ |
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139 SDL_WINDOWEVENT_HIDDEN, /**< Window has been hidden */ |
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140 SDL_WINDOWEVENT_MOVED, /**< Window has been moved to data1,data2 */ |
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141 SDL_WINDOWEVENT_RESIZED, /**< Window size changed to data1xdata2 */ |
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142 SDL_WINDOWEVENT_MINIMIZED, /**< Window has been minimized */ |
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143 SDL_WINDOWEVENT_MAXIMIZED, /**< Window has been maximized */ |
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144 SDL_WINDOWEVENT_RESTORED, /**< Window has been restored to normal size and position */ |
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145 SDL_WINDOWEVENT_ENTER, /**< The window has gained mouse focus */ |
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146 SDL_WINDOWEVENT_LEAVE, /**< The window has lost mouse focus */ |
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147 SDL_WINDOWEVENT_FOCUS_GAINED, /**< The window has gained keyboard focus */ |
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148 SDL_WINDOWEVENT_FOCUS_LOST, /**< The window has lost keyboard focus */ |
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149 } SDL_WindowEventID; |
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150 |
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151 /** |
| 1670 | 152 * \enum SDL_RendererFlags |
| 153 * | |
| 154 * \brief Flags used when initializing a render manager. | |
| 155 */ | |
| 156 typedef enum | |
| 157 { | |
| 158 SDL_Renderer_PresentDiscard = 0x00000001, /**< Present leaves the contents of the backbuffer undefined */ | |
| 159 SDL_Renderer_PresentCopy = 0x00000002, /**< Present uses a copy from back buffer to the front buffer */ | |
| 160 SDL_Renderer_PresentFlip2 = 0x00000004, /**< Present uses a flip, swapping back buffer and front buffer */ | |
| 161 SDL_Renderer_PresentFlip3 = 0x00000008, /**< Present uses a flip, rotating between two back buffers and a front buffer */ | |
| 162 SDL_Renderer_PresentVSync = 0x00000010, /**< Present is synchronized with the refresh rate */ | |
| 163 SDL_Renderer_RenderTarget = 0x00000020, /**< The renderer can create texture render targets */ | |
| 164 SDL_Renderer_Accelerated = 0x00000040, /**< The renderer uses hardware acceleration */ | |
| 165 SDL_Renderer_Minimal = 0x00000080, /**< The renderer only supports the read/write pixel and present functions */ | |
| 166 } SDL_RendererFlags; | |
| 167 | |
| 168 /** | |
| 169 * \struct SDL_RendererInfo | |
| 170 * | |
| 171 * \brief Information on the capabilities of a render manager. | |
| 172 */ | |
| 173 typedef struct SDL_RendererInfo | |
| 174 { | |
| 175 const char *name; /**< The name of the renderer */ | |
| 176 Uint32 flags; /**< Supported SDL_RendererFlags */ | |
| 177 Uint32 blend_modes; /**< A mask of supported blend modes */ | |
| 178 Uint32 scale_modes; /**< A mask of supported scale modes */ | |
| 179 Uint32 num_texture_formats; /**< The number of available texture formats */ | |
| 180 Uint32 texture_formats[32]; /**< The available texture formats */ | |
| 181 int max_texture_width; /**< The maximimum texture width */ | |
| 182 int max_texture_height; /**< The maximimum texture height */ | |
| 183 } SDL_RendererInfo; | |
| 184 | |
| 185 /** | |
| 186 * \enum SDL_TextureAccess | |
| 187 * | |
| 188 * \brief The access pattern allowed for a texture | |
| 189 */ | |
| 190 typedef enum | |
| 191 { | |
| 192 SDL_TextureAccess_Render, /**< Unlockable video memory, rendering allowed */ | |
| 193 SDL_TextureAccess_Remote, /**< Unlockable video memory */ | |
| 194 SDL_TextureAccess_Local, /**< Lockable system memory */ | |
| 195 } SDL_TextureAccess; | |
| 196 | |
| 197 /** | |
| 198 * \enum SDL_TextureBlendMode | |
| 199 * | |
| 200 * \brief The blend mode used in SDL_RenderCopy() | |
| 201 */ | |
| 202 typedef enum | |
| 203 { | |
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204 SDL_TextureBlendMode_None = 0x00000000, /**< No blending */ |
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205 SDL_TextureBlendMode_Mask = 0x00000001, /**< dst = A ? src : dst (alpha is mask) */ |
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206 SDL_TextureBlendMode_Blend = 0x00000002, /**< dst = (src * A) + (dst * (1-A)) */ |
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207 SDL_TextureBlendMode_Add = 0x00000004, /**< dst = (src * A) + dst */ |
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208 SDL_TextureBlendMode_Mod = 0x00000008, /**< dst = src * dst */ |
| 1670 | 209 } SDL_TextureBlendMode; |
| 210 | |
| 211 /** | |
| 212 * \enum SDL_TextureScaleMode | |
| 213 * | |
| 214 * \brief The scale mode used in SDL_RenderCopy() | |
| 215 */ | |
| 216 typedef enum | |
| 217 { | |
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218 SDL_TextureScaleMode_None = 0x00000000, /**< No scaling, rectangles must match dimensions */ |
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219 SDL_TextureScaleMode_Fast = 0x00000001, /**< Point sampling or equivalent algorithm */ |
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220 SDL_TextureScaleMode_Slow = 0x00000002, /**< Linear filtering or equivalent algorithm */ |
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221 SDL_TextureScaleMode_Best = 0x00000004, /**< Bicubic filtering or equivalent algorithm */ |
| 1670 | 222 } SDL_TextureScaleMode; |
| 223 | |
| 224 /** | |
| 225 * \typedef SDL_TextureID | |
| 226 * | |
| 227 * \brief An efficient driver-specific representation of pixel data | |
| 228 */ | |
| 229 typedef Uint32 SDL_TextureID; | |
| 230 | |
| 231 | |
| 232 /* These are the currently supported flags for the SDL_surface */ | |
| 233 /* Used internally (read-only) */ | |
| 234 #define SDL_HWSURFACE 0x00000001 /* Surface represents a texture */ | |
| 235 #define SDL_PREALLOC 0x00000002 /* Surface uses preallocated memory */ | |
| 236 #define SDL_SRCALPHA 0x00000004 /* Blit uses source alpha blending */ | |
| 237 #define SDL_SRCCOLORKEY 0x00000008 /* Blit uses a source color key */ | |
| 238 #define SDL_RLEACCELOK 0x00000010 /* Private flag */ | |
| 239 #define SDL_RLEACCEL 0x00000020 /* Surface is RLE encoded */ | |
| 240 | |
| 241 /* Evaluates to true if the surface needs to be locked before access */ | |
| 242 #define SDL_MUSTLOCK(S) (((S)->flags & (SDL_HWSURFACE|SDL_RLEACCEL)) != 0) | |
| 243 | |
| 244 /* This structure should be treated as read-only, except for 'pixels', | |
| 245 which, if not NULL, contains the raw pixel data for the surface. | |
| 246 */ | |
| 247 typedef struct SDL_Surface | |
| 248 { | |
| 249 Uint32 flags; /* Read-only */ | |
| 250 SDL_PixelFormat *format; /* Read-only */ | |
| 251 int w, h; /* Read-only */ | |
| 252 int pitch; /* Read-only */ | |
| 253 void *pixels; /* Read-write */ | |
| 254 | |
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255 /* texture associated with the surface, if any */ |
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256 SDL_TextureID textureID; |
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257 |
| 1670 | 258 /* information needed for surfaces requiring locks */ |
| 259 int locked; | |
| 260 void *lock_data; | |
| 261 | |
| 262 /* clipping information */ | |
| 263 SDL_Rect clip_rect; /* Read-only */ | |
| 264 | |
| 265 /* info for fast blit mapping to other surfaces */ | |
| 266 struct SDL_BlitMap *map; /* Private */ | |
| 267 | |
| 268 /* format version, bumped at every change to invalidate blit maps */ | |
| 269 unsigned int format_version; /* Private */ | |
| 270 | |
| 271 /* Reference count -- used when freeing surface */ | |
| 272 int refcount; /* Read-mostly */ | |
| 273 } SDL_Surface; | |
| 274 | |
| 275 /* typedef for private surface blitting functions */ | |
| 276 typedef int (*SDL_blit) (struct SDL_Surface * src, SDL_Rect * srcrect, | |
| 277 struct SDL_Surface * dst, SDL_Rect * dstrect); | |
| 278 | |
| 279 | |
| 280 /** | |
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281 * \enum SDL_GLattr |
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282 * |
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283 * \brief OpenGL configuration attributes |
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284 */ |
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285 typedef enum |
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286 { |
| 0 | 287 SDL_GL_RED_SIZE, |
| 288 SDL_GL_GREEN_SIZE, | |
| 289 SDL_GL_BLUE_SIZE, | |
| 290 SDL_GL_ALPHA_SIZE, | |
| 291 SDL_GL_BUFFER_SIZE, | |
| 292 SDL_GL_DOUBLEBUFFER, | |
| 293 SDL_GL_DEPTH_SIZE, | |
| 294 SDL_GL_STENCIL_SIZE, | |
| 295 SDL_GL_ACCUM_RED_SIZE, | |
| 296 SDL_GL_ACCUM_GREEN_SIZE, | |
| 297 SDL_GL_ACCUM_BLUE_SIZE, | |
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298 SDL_GL_ACCUM_ALPHA_SIZE, |
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299 SDL_GL_STEREO, |
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300 SDL_GL_MULTISAMPLEBUFFERS, |
| 1656 | 301 SDL_GL_MULTISAMPLESAMPLES, |
| 302 SDL_GL_ACCELERATED_VISUAL, | |
| 303 SDL_GL_SWAP_CONTROL | |
| 0 | 304 } SDL_GLattr; |
| 305 | |
| 306 | |
| 307 /* Function prototypes */ | |
| 308 | |
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309 /** |
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310 * \fn int SDL_GetNumVideoDrivers(void) |
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311 * |
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312 * \brief Get the number of video drivers compiled into SDL |
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313 * |
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314 * \sa SDL_GetVideoDriver() |
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315 */ |
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316 extern DECLSPEC int SDLCALL SDL_GetNumVideoDrivers(void); |
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317 |
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318 /** |
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319 * \fn const char *SDL_GetVideoDriver(int index) |
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320 * |
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321 * \brief Get the name of a built in video driver. |
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322 * |
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323 * \note The video drivers are presented in the order in which they are |
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324 * normally checked during initialization. |
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325 * |
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326 * \sa SDL_GetNumVideoDrivers() |
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327 */ |
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328 extern DECLSPEC const char *SDLCALL SDL_GetVideoDriver(int index); |
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329 |
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330 /** |
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331 * \fn int SDL_VideoInit(const char *driver_name, Uint32 flags) |
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332 * |
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333 * \brief Initialize the video subsystem, optionally specifying a video driver. |
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334 * |
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335 * \param driver_name Initialize a specific driver by name, or NULL for the default video driver. |
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336 * \param flags FIXME: Still needed? |
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337 * |
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338 * \return 0 on success, -1 on error |
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339 * |
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340 * This function initializes the video subsystem; setting up a connection |
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341 * to the window manager, etc, and determines the available display modes |
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342 * and pixel formats, but does not initialize a window or graphics mode. |
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343 * |
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344 * \sa SDL_VideoQuit() |
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345 */ |
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346 extern DECLSPEC int SDLCALL SDL_VideoInit(const char *driver_name, |
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347 Uint32 flags); |
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348 |
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349 /** |
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350 * \fn void SDL_VideoQuit(void) |
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351 * |
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352 * \brief Shuts down the video subsystem. |
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353 * |
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354 * This function closes all windows, and restores the original video mode. |
| 0 | 355 * |
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356 * \sa SDL_VideoInit() |
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357 */ |
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358 extern DECLSPEC void SDLCALL SDL_VideoQuit(void); |
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359 |
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360 /** |
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361 * \fn const char *SDL_GetCurrentVideoDriver(void) |
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362 * |
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363 * \brief Returns the name of the currently initialized video driver. |
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364 * |
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365 * \return The name of the current video driver or NULL if no driver |
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366 * has been initialized |
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367 * |
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368 * \sa SDL_GetNumVideoDrivers() |
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369 * \sa SDL_GetVideoDriver() |
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370 */ |
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371 extern DECLSPEC const char *SDLCALL SDL_GetCurrentVideoDriver(void); |
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372 |
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373 /** |
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374 * \fn int SDL_GetNumVideoDisplays(void) |
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375 * |
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376 * \brief Returns the number of available video displays. |
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377 * |
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378 * \sa SDL_SelectVideoDisplay() |
| 0 | 379 */ |
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380 extern DECLSPEC int SDLCALL SDL_GetNumVideoDisplays(void); |
| 0 | 381 |
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382 /** |
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383 * \fn int SDL_SelectVideoDisplay(int index) |
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384 * |
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385 * \brief Set the index of the currently selected display. |
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386 * |
| 1670 | 387 * \return The index of the currently selected display. |
| 388 * | |
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389 * \note You can query the currently selected display by passing an index of -1. |
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390 * |
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391 * \sa SDL_GetNumVideoDisplays() |
| 0 | 392 */ |
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393 extern DECLSPEC int SDLCALL SDL_SelectVideoDisplay(int index); |
| 0 | 394 |
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395 /** |
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396 * \fn int SDL_GetNumDisplayModes(void) |
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397 * |
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398 * \brief Returns the number of available display modes for the current display. |
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399 * |
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400 * \sa SDL_GetDisplayMode() |
| 0 | 401 */ |
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402 extern DECLSPEC int SDLCALL SDL_GetNumDisplayModes(void); |
| 0 | 403 |
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404 /** |
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405 * \fn const SDL_DisplayMode *SDL_GetDisplayMode(int index) |
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406 * |
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407 * \brief Retrieve information about a specific display mode. |
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408 * |
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409 * \note The display modes are sorted in this priority: |
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410 * \li bits per pixel -> more colors to fewer colors |
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411 * \li width -> largest to smallest |
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412 * \li height -> largest to smallest |
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413 * \li refresh rate -> highest to lowest |
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414 * |
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415 * \sa SDL_GetNumDisplayModes() |
| 0 | 416 */ |
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417 extern DECLSPEC const SDL_DisplayMode *SDLCALL SDL_GetDisplayMode(int index); |
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418 |
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419 /** |
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420 * \fn const SDL_DisplayMode *SDL_GetDesktopDisplayMode(void) |
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421 * |
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422 * \brief Retrieve information about the desktop display mode for the current display. |
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423 */ |
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424 extern DECLSPEC const SDL_DisplayMode *SDLCALL |
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425 SDL_GetDesktopDisplayMode(void); |
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426 |
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427 /** |
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428 * \fn const SDL_DisplayMode *SDL_GetCurrentDisplayMode(void) |
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429 * |
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430 * \brief Retrieve information about the current display mode. |
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431 */ |
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432 extern DECLSPEC const SDL_DisplayMode *SDLCALL |
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433 SDL_GetCurrentDisplayMode(void); |
| 0 | 434 |
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435 /** |
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436 * \fn SDL_DisplayMode *SDL_GetClosestDisplayMode(const SDL_DisplayMode *mode, SDL_DisplayMode *closest) |
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437 * |
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438 * \brief Get the closest match to the requested display mode. |
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439 * |
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440 * \param mode The desired display mode |
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441 * \param closest A pointer to a display mode to be filled in with the closest match of the available display modes. |
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442 * |
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443 * \return The passed in value 'closest', or NULL if no matching video mode was available. |
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444 * |
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445 * The available display modes are scanned, and 'closest' is filled in with the closest mode matching the requested mode and returned. The mode format and refresh_rate default to the desktop mode if they are 0. The modes are scanned with size being first priority, format being second priority, and finally checking the refresh_rate. If all the available modes are too small, then NULL is returned. |
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446 * |
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447 * \sa SDL_GetNumDisplayModes() |
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448 * \sa SDL_GetDisplayMode() |
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449 */ |
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450 extern DECLSPEC SDL_DisplayMode *SDLCALL SDL_GetClosestDisplayMode(const |
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451 SDL_DisplayMode |
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452 * mode, |
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453 SDL_DisplayMode |
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454 * closest); |
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455 |
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456 /** |
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457 * \fn int SDL_SetDisplayMode(const SDL_DisplayMode *mode) |
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458 * |
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459 * \brief Set up the closest available mode on the current display. |
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460 * |
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461 * \param mode The desired display mode |
| 0 | 462 * |
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463 * \return 0 on success, or -1 if setting the display mode failed. |
| 0 | 464 */ |
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465 extern DECLSPEC int SDLCALL SDL_SetDisplayMode(const SDL_DisplayMode * mode); |
| 0 | 466 |
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467 /** |
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468 * \fn int SDL_SetDisplayPalette(const SDL_Color *colors, int firstcolor, int ncolors) |
| 1670 | 469 * |
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470 * \brief Set the palette entries for indexed display modes. |
| 1670 | 471 * |
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472 * \return 0 on success, or -1 if the display mode isn't palettized or the colors couldn't be set. |
| 1670 | 473 */ |
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474 extern DECLSPEC int SDLCALL SDL_SetDisplayPalette(const SDL_Color * colors, |
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475 int firstcolor, |
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476 int ncolors); |
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477 |
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478 /** |
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479 * \fn int SDL_GetDisplayPalette(SDL_Color *colors, int firstcolor, int ncolors) |
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480 * |
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481 * \brief Gets the palette entries for indexed display modes. |
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482 * |
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483 * \return 0 on success, or -1 if the display mode isn't palettized |
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484 */ |
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485 extern DECLSPEC int SDLCALL SDL_GetDisplayPalette(SDL_Color * colors, |
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486 int firstcolor, |
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487 int ncolors); |
| 1670 | 488 |
| 489 /** | |
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490 * \fn SDL_WindowID SDL_CreateWindow(const char *title, int x, int y, int w, int h, Uint32 flags) |
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491 * |
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492 * \brief Create a window with the specified position, dimensions, and flags. |
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493 * |
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494 * \param title The title of the window |
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495 * \param x The x position of the window |
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496 * \param y The y position of the window |
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497 * \param w The width of the window |
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498 * \param h The height of the window |
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499 * \param flags The flags for the window |
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500 * |
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501 * \return The id of the window created, or zero if window creation failed. |
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502 * |
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503 * \note Setting the position to -1, -1, indicates any position is fine. |
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504 * |
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505 * \sa SDL_DestroyWindow() |
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506 */ |
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507 extern DECLSPEC SDL_WindowID SDLCALL SDL_CreateWindow(const char *title, |
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508 int x, int y, int w, |
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509 int h, Uint32 flags); |
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510 |
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511 /** |
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512 * \fn SDL_WindowID SDL_CreateWindowFrom(void *data) |
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513 * |
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514 * \brief Create an SDL window struct from an existing native window. |
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515 * |
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516 * \param data A pointer to driver-dependent window creation data |
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517 * |
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518 * \return The id of the window created, or zero if window creation failed. |
| 0 | 519 * |
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520 * \warning This function is NOT SUPPORTED, use at your own risk! |
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521 * |
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522 * \sa SDL_DestroyWindow() |
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523 */ |
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524 extern DECLSPEC SDL_WindowID SDLCALL SDL_CreateWindowFrom(const void *data); |
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525 |
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526 /** |
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527 * \fn Uint32 SDL_GetWindowFlags(SDL_WindowID windowID) |
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528 * |
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529 * \brief Get the window flags. |
| 0 | 530 */ |
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531 extern DECLSPEC Uint32 SDLCALL SDL_GetWindowFlags(SDL_WindowID windowID); |
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532 |
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533 /** |
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534 * \fn void SDL_SetWindowTitle(SDL_WindowID windowID, const char *title) |
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535 * |
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536 * \brief Set the title of the window, in UTF-8 format. |
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537 * |
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538 * \sa SDL_GetWindowTitle() |
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539 */ |
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540 extern DECLSPEC void SDLCALL SDL_SetWindowTitle(SDL_WindowID windowID, |
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541 const char *title); |
| 0 | 542 |
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543 /** |
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544 * \fn const char *SDL_GetWindowTitle(SDL_WindowID windowID) |
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545 * |
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546 * \brief Get the title of the window, in UTF-8 format. |
| 0 | 547 * |
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548 * \sa SDL_SetWindowTitle() |
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549 */ |
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550 extern DECLSPEC const char *SDLCALL SDL_GetWindowTitle(SDL_WindowID windowID); |
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551 |
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552 /** |
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553 * \fn void SDL_SetWindowIcon(SDL_Surface *icon) |
| 0 | 554 * |
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555 * \brief Set the icon of the window. |
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556 * |
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557 * \param icon The icon for the window |
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558 * |
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559 * FIXME: The icon needs to be set before the window is first shown. Should some icon representation be part of the window creation data? |
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560 */ |
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561 extern DECLSPEC void SDLCALL SDL_SetWindowIcon(SDL_Surface * icon); |
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562 |
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563 /** |
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564 * \fn void SDL_SetWindowData(SDL_WindowID windowID, void *userdata) |
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565 * |
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566 * \brief Associate an arbitrary pointer with the window. |
| 0 | 567 * |
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568 * \sa SDL_GetWindowData() |
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569 */ |
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570 extern DECLSPEC void SDLCALL SDL_SetWindowData(SDL_WindowID windowID, |
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571 void *userdata); |
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572 |
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573 /** |
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574 * \fn void *SDL_GetWindowData(SDL_WindowID windowID) |
| 0 | 575 * |
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576 * \brief Retrieve the data pointer associated with the window. |
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577 * |
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578 * \sa SDL_SetWindowData() |
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579 */ |
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580 extern DECLSPEC void *SDLCALL SDL_GetWindowData(SDL_WindowID windowID); |
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581 |
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582 /** |
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583 * \fn void SDL_SetWindowPosition(SDL_WindowID windowID, int x, int y) |
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584 * |
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585 * \brief Set the position of the window. |
| 0 | 586 * |
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587 * \sa SDL_GetWindowPosition() |
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588 */ |
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589 extern DECLSPEC void SDLCALL SDL_SetWindowPosition(SDL_WindowID windowID, |
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590 int x, int y); |
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591 |
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592 /** |
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593 * \fn void SDL_GetWindowPosition(SDL_WindowID windowID, int *x, int *y) |
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594 * |
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595 * \brief Get the position of the window. |
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596 * |
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597 * \sa SDL_SetWindowPosition() |
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598 */ |
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599 extern DECLSPEC void SDLCALL SDL_GetWindowPosition(SDL_WindowID windowID, |
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600 int *x, int *y); |
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601 |
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602 /** |
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603 * \fn void SDL_SetWindowSize(SDL_WindowID windowID, int w, int w) |
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604 * |
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605 * \brief Set the size of the window's client area. |
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606 * |
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607 * \note You can't change the size of a fullscreen window, it automatically |
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608 * matches the size of the display mode. |
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609 * |
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610 * \sa SDL_GetWindowSize() |
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611 */ |
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612 extern DECLSPEC void SDLCALL SDL_SetWindowSize(SDL_WindowID windowID, int w, |
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613 int h); |
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614 |
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615 /** |
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616 * \fn void SDL_GetWindowSize(SDL_WindowID windowID, int *w, int *w) |
| 0 | 617 * |
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618 * \brief Get the size of the window's client area. |
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619 * |
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620 * \sa SDL_SetWindowSize() |
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621 */ |
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622 extern DECLSPEC void SDLCALL SDL_GetWindowSize(SDL_WindowID windowID, int *w, |
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623 int *h); |
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624 |
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625 /** |
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626 * \fn void SDL_ShowWindow(SDL_WindowID windowID) |
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627 * |
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628 * \brief Show the window |
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629 * |
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630 * \sa SDL_HideWindow() |
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631 */ |
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632 extern DECLSPEC void SDLCALL SDL_ShowWindow(SDL_WindowID windowID); |
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633 |
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634 /** |
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635 * \fn void SDL_HideWindow(SDL_WindowID windowID) |
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636 * |
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637 * \brief Hide the window |
| 0 | 638 * |
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639 * \sa SDL_ShowWindow() |
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640 */ |
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641 extern DECLSPEC void SDLCALL SDL_HideWindow(SDL_WindowID windowID); |
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642 |
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643 /** |
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644 * \fn void SDL_RaiseWindow(SDL_WindowID windowID) |
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645 * |
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646 * \brief Raise the window so it's above other windows. |
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647 */ |
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648 extern DECLSPEC void SDLCALL SDL_RaiseWindow(SDL_WindowID windowID); |
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649 |
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650 /** |
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651 * \fn void SDL_MaximizeWindow(SDL_WindowID windowID) |
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652 * |
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653 * \brief Make the window as large as possible. |
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654 * |
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655 * \sa SDL_RestoreWindow() |
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656 */ |
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657 extern DECLSPEC void SDLCALL SDL_MaximizeWindow(SDL_WindowID windowID); |
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658 |
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659 /** |
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660 * \fn void SDL_MinimizeWindow(SDL_WindowID windowID) |
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661 * |
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662 * \brief Minimize the window to an iconic representation. |
| 0 | 663 * |
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664 * \sa SDL_RestoreWindow() |
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665 */ |
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666 extern DECLSPEC void SDLCALL SDL_MinimizeWindow(SDL_WindowID windowID); |
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667 |
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668 /** |
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669 * \fn void SDL_RestoreWindow(SDL_WindowID windowID) |
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670 * |
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671 * \brief Restore the size and position of a minimized or maximized window. |
| 0 | 672 * |
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673 * \sa SDL_MaximizeWindow() |
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674 * \sa SDL_MinimizeWindow() |
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675 */ |
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676 extern DECLSPEC void SDLCALL SDL_RestoreWindow(SDL_WindowID windowID); |
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677 |
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678 /** |
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679 * \fn void SDL_SetWindowGrab(SDL_WindowID windowID, int mode) |
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680 * |
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681 * \brief Set the window's input grab mode. |
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682 * |
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683 * \param mode This is 1 to grab input, and 0 to release input. |
| 0 | 684 * |
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685 * \sa SDL_GrabMode |
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686 * \sa SDL_GetWindowGrab() |
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687 */ |
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688 extern DECLSPEC void SDLCALL SDL_SetWindowGrab(SDL_WindowID windowID, |
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689 int mode); |
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690 |
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691 /** |
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692 * \fn int SDL_GetWindowGrab(SDL_WindowID windowID) |
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693 * |
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694 * \brief Get the window's input grab mode. |
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695 * |
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696 * \return This returns 1 if input is grabbed, and 0 otherwise. |
| 0 | 697 * |
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698 * \sa SDL_GrabMode |
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699 * \sa SDL_SetWindowGrab() |
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700 */ |
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701 extern DECLSPEC int SDLCALL SDL_GetWindowGrab(SDL_WindowID windowID); |
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702 |
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703 /** |
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704 * \fn void SDL_DestroyWindow(SDL_WindowID windowID) |
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705 * |
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706 * \brief Destroy a window. |
| 0 | 707 */ |
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708 extern DECLSPEC void SDLCALL SDL_DestroyWindow(SDL_WindowID windowID); |
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709 |
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710 /** |
| 1670 | 711 * \fn int SDL_GetNumRenderers(void) |
| 712 * | |
| 713 * \brief Get the number of render managers on the current display. | |
| 714 * | |
| 715 * A render manager is a set of code that handles rendering and texture | |
| 716 * management on a particular display. Normally there is only one, but | |
| 717 * some drivers may have several available with different capabilities. | |
| 718 * | |
| 719 * \sa SDL_GetRendererInfo() | |
| 720 * \sa SDL_CreateRenderer() | |
| 721 */ | |
| 722 extern DECLSPEC int SDLCALL SDL_GetNumRenderers(void); | |
| 723 | |
| 724 /** | |
| 725 * \fn SDL_RendererInfo *SDL_GetRendererInfo(int index) | |
| 726 * | |
| 727 * \brief Get information about a specific render manager on the current | |
| 728 * display. | |
| 729 * | |
| 730 * \sa SDL_CreateRenderer() | |
| 731 */ | |
| 732 extern DECLSPEC int SDLCALL SDL_GetRendererInfo(int index, | |
| 733 SDL_RendererInfo * info); | |
| 734 | |
| 735 /** | |
| 736 * \fn int SDL_CreateRenderer(SDL_WindowID window, int index, Uint32 flags) | |
| 737 * | |
| 738 * \brief Create and make active a 2D rendering context for a window. | |
| 739 * | |
| 740 * \param windowID The window used for rendering. | |
| 741 * \param index The index of the render manager to initialize, or -1 to initialize the first one supporting the requested flags. | |
| 742 * \param flags SDL_RendererFlags | |
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743 * |
| 1670 | 744 * \return 0 on success, -1 if the flags were not supported, or -2 if |
| 745 * there isn't enough memory to support the requested flags | |
| 746 * | |
| 747 * \sa SDL_SelectRenderer() | |
| 748 * \sa SDL_DestroyRenderer() | |
| 749 */ | |
| 750 extern DECLSPEC int SDLCALL SDL_CreateRenderer(SDL_WindowID windowID, | |
| 751 int index, Uint32 flags); | |
| 752 | |
| 753 /** | |
| 754 * \fn int SDL_SelectRenderer(SDL_WindowID windowID) | |
| 755 * | |
| 756 * \brief Select the rendering context for a particular window. | |
| 757 * | |
| 758 * \return 0 on success, -1 if the selected window doesn't have a | |
| 759 * rendering context. | |
| 760 */ | |
| 761 extern DECLSPEC int SDLCALL SDL_SelectRenderer(SDL_WindowID windowID); | |
| 762 | |
| 763 /** | |
| 764 * \fn SDL_TextureID SDL_CreateTexture(Uint32 format, int access, int w, int h) | |
| 765 * | |
| 766 * \brief Create a texture | |
| 767 * | |
| 768 * \param format The format of the texture | |
| 769 * \param access One of the enumerated values in SDL_TextureAccess | |
| 770 * \param w The width of the texture in pixels | |
| 771 * \param h The height of the texture in pixels | |
| 772 * | |
| 773 * \return The created texture is returned, or 0 if no render manager was active, the format was unsupported, or the width or height were out of range. | |
| 774 * | |
| 775 * \sa SDL_QueryTexture() | |
| 776 * \sa SDL_DestroyTexture() | |
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777 */ |
| 1670 | 778 extern DECLSPEC SDL_TextureID SDLCALL SDL_CreateTexture(Uint32 format, |
| 779 int access, int w, | |
| 780 int h); | |
| 781 | |
| 782 /** | |
| 783 * \fn SDL_TextureID SDL_CreateTextureFromSurface(Uint32 format, int access, SDL_Surface *surface) | |
| 784 * | |
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785 * \brief Create a texture from an existing surface. |
| 1670 | 786 * |
| 787 * \param format The format of the texture, or 0 to pick an appropriate format | |
| 788 * \param access One of the enumerated values in SDL_TextureAccess | |
| 789 * \param surface The surface containing pixel data used to fill the texture | |
| 790 * | |
| 791 * \return The created texture is returned, or 0 if no render manager was active, the format was unsupported, or the surface width or height were out of range. | |
| 792 * | |
| 793 * \note The surface is not modified or freed by this function. | |
| 794 * | |
| 795 * \sa SDL_QueryTexture() | |
| 796 * \sa SDL_DestroyTexture() | |
| 797 */ | |
| 798 extern DECLSPEC SDL_TextureID SDLCALL SDL_CreateTextureFromSurface(Uint32 | |
| 799 format, | |
| 800 int access, | |
| 801 SDL_Surface | |
| 802 * surface); | |
| 0 | 803 |
| 1670 | 804 /** |
| 805 * \fn int SDL_QueryTexture(SDL_TextureID textureID, Uint32 *format, int *access, int *w, int *h) | |
| 806 * | |
| 807 * \brief Query the attributes of a texture | |
| 808 * | |
| 809 * \param texture A texture to be queried | |
| 810 * \param format A pointer filled in with the raw format of the texture. The actual format may differ, but pixel transfers will use this format. | |
| 811 * \param access A pointer filled in with the actual access to the texture. | |
| 812 * \param w A pointer filled in with the width of the texture in pixels | |
| 813 * \param h A pointer filled in with the height of the texture in pixels | |
| 814 * | |
| 815 * \return 0 on success, or -1 if the texture is not valid | |
| 816 */ | |
| 817 extern DECLSPEC int SDLCALL SDL_QueryTexture(SDL_TextureID textureID, | |
| 818 Uint32 * format, int *access, | |
| 819 int *w, int *h); | |
| 820 | |
| 821 /** | |
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822 * \fn int SDL_QueryTexturePixels(SDL_TextureID textureID, void **pixels, int pitch) |
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823 * |
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824 * \brief Query the pixels of a texture, if the texture does not need to be locked for pixel access. |
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825 * |
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826 * \param texture A texture to be queried, which was created with SDL_TextureAccess_Local |
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827 * \param pixels A pointer filled with a pointer to the pixels for the texture |
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828 * \param pitch A pointer filled in with the pitch of the pixel data |
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829 * |
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830 * \return 0 on success, or -1 if the texture is not valid, or must be locked for pixel access. |
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831 */ |
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832 extern DECLSPEC int SDLCALL SDL_QueryTexturePixels(SDL_TextureID textureID, |
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833 void **pixels, int *pitch); |
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834 |
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835 /** |
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836 * \fn int SDL_SetTexturePalette(SDL_TextureID textureID, const SDL_Color * colors, int firstcolor, int ncolors) |
| 1670 | 837 * |
| 838 * \brief Update an indexed texture with a color palette | |
| 839 * | |
| 840 * \param texture The texture to update | |
| 841 * \param colors The array of RGB color data | |
| 842 * \param firstcolor The first index to update | |
| 843 * \param ncolors The number of palette entries to fill with the color data | |
| 844 * | |
| 845 * \return 0 on success, or -1 if the texture is not valid or not an indexed texture | |
| 846 */ | |
| 847 extern DECLSPEC int SDLCALL SDL_SetTexturePalette(SDL_TextureID textureID, | |
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848 const SDL_Color * colors, |
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849 int firstcolor, |
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850 int ncolors); |
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851 |
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852 /** |
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853 * \fn int SDL_GetTexturePalette(SDL_TextureID textureID, SDL_Color * colors, int firstcolor, int ncolors) |
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854 * |
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855 * \brief Update an indexed texture with a color palette |
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856 * |
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857 * \param texture The texture to update |
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858 * \param colors The array to fill with RGB color data |
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859 * \param firstcolor The first index to retrieve |
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860 * \param ncolors The number of palette entries to retrieve |
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861 * |
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862 * \return 0 on success, or -1 if the texture is not valid or not an indexed texture |
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863 */ |
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864 extern DECLSPEC int SDLCALL SDL_GetTexturePalette(SDL_TextureID textureID, |
| 1670 | 865 SDL_Color * colors, |
| 866 int firstcolor, | |
| 867 int ncolors); | |
| 868 | |
| 869 /** | |
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870 * \fn int SDL_UpdateTexture(SDL_TextureID textureID, const SDL_Rect *rect, const void *pixels, int pitch) |
| 1670 | 871 * |
| 872 * \brief Update the given texture rectangle with new pixel data. | |
| 873 * | |
| 874 * \param texture The texture to update | |
| 875 * \param rect A pointer to the rectangle of pixels to update, or NULL to update the entire texture. | |
| 876 * \param pixels The raw pixel data | |
| 877 * \param pitch The number of bytes between rows of pixel data | |
| 878 * | |
| 879 * \return 0 on success, or -1 if the texture is not valid | |
| 880 * | |
| 881 * \note This is a very slow function for textures not created with SDL_TextureAccess_Local. | |
| 0 | 882 */ |
| 1670 | 883 extern DECLSPEC int SDLCALL SDL_UpdateTexture(SDL_TextureID textureID, |
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884 const SDL_Rect * rect, |
| 1670 | 885 const void *pixels, int pitch); |
| 886 | |
| 887 /** | |
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888 * \fn void SDL_LockTexture(SDL_TextureID textureID, const SDL_Rect *rect, int markDirty, void **pixels, int *pitch) |
| 1670 | 889 * |
| 890 * \brief Lock a portion of the texture for pixel access. | |
| 891 * | |
| 892 * \param texture The texture to lock for access, which must have been created with SDL_TextureAccess_Local. | |
| 893 * \param rect A pointer to the rectangle to lock for access. If the rect is NULL, the entire texture will be locked. | |
| 894 * \param markDirty If this is nonzero, the locked area will be marked dirty when the texture is unlocked. | |
| 895 * \param pixels This is filled in with a pointer to the locked pixels, appropriately offset by the locked area. | |
| 896 * \param pitch This is filled in with the pitch of the locked pixels. | |
| 897 * | |
| 898 * \return 0 on success, or -1 if the texture is not valid or was created with SDL_TextureAccess_Remote | |
| 899 * | |
| 900 * \sa SDL_DirtyTexture() | |
| 901 * \sa SDL_UnlockTexture() | |
| 902 */ | |
| 903 extern DECLSPEC int SDLCALL SDL_LockTexture(SDL_TextureID textureID, | |
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904 const SDL_Rect * rect, |
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905 int markDirty, void **pixels, |
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906 int *pitch); |
| 1670 | 907 |
| 908 /** | |
| 909 * \fn void SDL_UnlockTexture(SDL_TextureID textureID) | |
| 910 * | |
| 911 * \brief Unlock a texture, uploading the changes to video memory, if needed. | |
| 912 * | |
| 913 * \sa SDL_LockTexture() | |
| 914 * \sa SDL_DirtyTexture() | |
| 915 */ | |
| 916 extern DECLSPEC void SDLCALL SDL_UnlockTexture(SDL_TextureID textureID); | |
| 917 | |
| 918 /** | |
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919 * \fn void SDL_DirtyTexture(SDL_TextureID textureID, int numrects, const SDL_Rect * rects) |
| 1670 | 920 * |
| 921 * \brief Mark the specified rectangles of the texture as dirty. | |
| 922 * | |
| 923 * \note The texture must have been created with SDL_TextureAccess_Local. | |
| 924 * | |
| 925 * \sa SDL_LockTexture() | |
| 926 * \sa SDL_UnlockTexture() | |
| 927 */ | |
| 928 extern DECLSPEC void SDLCALL SDL_DirtyTexture(SDL_TextureID textureID, | |
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929 int numrects, |
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930 const SDL_Rect * rects); |
| 1670 | 931 |
| 932 /** | |
| 933 * \fn void SDL_SelectRenderTexture(SDL_TextureID textureID) | |
| 934 * | |
| 935 * \brief Select a texture as the rendering target, or 0 to reselect the current window. | |
| 936 * | |
| 937 * \note The texture must have been created with SDL_TextureAccess_Render. | |
| 938 */ | |
| 939 extern DECLSPEC void SDLCALL SDL_SelectRenderTexture(SDL_TextureID textureID); | |
| 940 | |
| 941 /** | |
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942 * \fn void SDL_RenderFill(const SDL_Rect *rect, Uint32 color) |
| 1670 | 943 * |
| 944 * \brief Fill the current rendering target with the specified color. | |
| 945 * | |
| 946 * \param rect A pointer to the destination rectangle, or NULL for the entire rendering target. | |
| 947 * \param color An ARGB color value. | |
| 948 * | |
| 949 * \return 0 on success, or -1 if there is no renderer current | |
| 950 */ | |
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951 extern DECLSPEC int SDLCALL SDL_RenderFill(const SDL_Rect * rect, |
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952 Uint32 color); |
| 0 | 953 |
| 1670 | 954 /** |
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955 * \fn int SDL_RenderCopy(SDL_TextureID textureID, const SDL_Rect *srcrect, const SDL_Rect *dstrect, Uint32 blendMode, Uint32 scaleMode) |
| 1670 | 956 * |
| 957 * \brief Copy a portion of the texture to the current rendering target. | |
| 958 * | |
| 959 * \param texture The source texture. | |
| 960 * \param srcrect A pointer to the source rectangle, or NULL for the entire texture. | |
| 961 * \param dstrect A pointer to the destination rectangle, or NULL for the entire rendering target. | |
| 962 * \param blendMode SDL_TextureBlendMode to be used if the source texture has an alpha channel. | |
| 963 * \param scaleMode SDL_TextureScaleMode to be used if the source and destination rectangles don't have the same width and height. | |
| 964 * | |
| 965 * \return 0 on success, or -1 if there is no renderer current, or the driver doesn't support the requested operation. | |
| 966 * | |
| 967 * \note You can check the video driver info to see what operations are supported. | |
| 968 */ | |
| 969 extern DECLSPEC int SDLCALL SDL_RenderCopy(SDL_TextureID textureID, | |
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970 const SDL_Rect * srcrect, |
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971 const SDL_Rect * dstrect, |
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972 int blendMode, int scaleMode); |
| 1670 | 973 |
| 974 /** | |
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975 * \fn int SDL_RenderReadPixels(const SDL_Rect *rect, void *pixels, int pitch) |
| 1670 | 976 * |
| 977 * \brief Read pixels from the current rendering target. | |
| 978 * | |
| 979 * \param rect A pointer to the rectangle to read, or NULL for the entire render target | |
| 980 * \param pixels A pointer to be filled in with the pixel data | |
| 981 * \param pitch The pitch of the pixels parameter | |
| 982 * | |
| 983 * \return 0 on success, or -1 if pixel reading is not supported. | |
| 984 * | |
| 985 * \warning This is a very slow operation, and should not be used frequently. | |
| 0 | 986 */ |
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987 extern DECLSPEC int SDLCALL SDL_RenderReadPixels(const SDL_Rect * rect, |
| 1670 | 988 void *pixels, int pitch); |
| 989 | |
| 990 /** | |
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991 * \fn int SDL_RenderWritePixels(const SDL_Rect *rect, const void *pixels, int pitch) |
| 1670 | 992 * |
| 993 * \brief Write pixels to the current rendering target. | |
| 994 * | |
| 995 * \param rect A pointer to the rectangle to write, or NULL for the entire render target | |
| 996 * \param pixels A pointer to the pixel data to write | |
| 997 * \param pitch The pitch of the pixels parameter | |
| 998 * | |
| 999 * \return 0 on success, or -1 if pixel writing is not supported. | |
| 1000 * | |
| 1001 * \warning This is a very slow operation, and should not be used frequently. | |
| 1002 */ | |
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1003 extern DECLSPEC int SDLCALL SDL_RenderWritePixels(const SDL_Rect * rect, |
| 1670 | 1004 const void *pixels, |
| 1005 int pitch); | |
| 1006 | |
| 1007 /** | |
| 1008 * \fn void SDL_RenderPresent(void) | |
| 1009 * | |
| 1010 * \brief Update the screen with rendering performed. | |
| 1011 */ | |
| 1012 extern DECLSPEC void SDLCALL SDL_RenderPresent(void); | |
| 1013 | |
| 1014 /** | |
| 1015 * \fn void SDL_DestroyTexture(SDL_TextureID textureID); | |
| 1016 * | |
| 1017 * \brief Destroy the specified texture. | |
| 1018 * | |
| 1019 * \sa SDL_CreateTexture() | |
| 1020 * \sa SDL_CreateTextureFromSurface() | |
| 1021 */ | |
| 1022 extern DECLSPEC void SDLCALL SDL_DestroyTexture(SDL_TextureID textureID); | |
| 1023 | |
| 1024 /** | |
| 1025 * \fn void SDL_DestroyRenderer(SDL_WindowID windowID); | |
| 1026 * | |
| 1027 * \brief Destroy the rendering context for a window and free associated | |
| 1028 * textures. | |
| 1029 * | |
| 1030 * \sa SDL_CreateRenderer() | |
| 1031 */ | |
| 1032 extern DECLSPEC void SDLCALL SDL_DestroyRenderer(SDL_WindowID windowID); | |
| 0 | 1033 |
| 1034 /* | |
| 1035 * Set the gamma correction for each of the color channels. | |
| 1036 * The gamma values range (approximately) between 0.1 and 10.0 | |
| 1037 * | |
| 1038 * If this function isn't supported directly by the hardware, it will | |
| 1039 * be emulated using gamma ramps, if available. If successful, this | |
| 1040 * function returns 0, otherwise it returns -1. | |
| 1041 */ | |
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1042 extern DECLSPEC int SDLCALL SDL_SetGamma(float red, float green, float blue); |
| 0 | 1043 |
| 1044 /* | |
| 1045 * Set the gamma translation table for the red, green, and blue channels | |
| 1046 * of the video hardware. Each table is an array of 256 16-bit quantities, | |
| 1047 * representing a mapping between the input and output for that channel. | |
| 1048 * The input is the index into the array, and the output is the 16-bit | |
| 1049 * gamma value at that index, scaled to the output color precision. | |
| 1050 * | |
| 1051 * You may pass NULL for any of the channels to leave it unchanged. | |
| 1052 * If the call succeeds, it will return 0. If the display driver or | |
| 1053 * hardware does not support gamma translation, or otherwise fails, | |
| 1054 * this function will return -1. | |
| 1055 */ | |
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1056 extern DECLSPEC int SDLCALL SDL_SetGammaRamp(const Uint16 * red, |
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1057 const Uint16 * green, |
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1058 const Uint16 * blue); |
| 0 | 1059 |
| 1060 /* | |
| 1061 * Retrieve the current values of the gamma translation tables. | |
| 1062 * | |
| 1063 * You must pass in valid pointers to arrays of 256 16-bit quantities. | |
| 1064 * Any of the pointers may be NULL to ignore that channel. | |
| 1065 * If the call succeeds, it will return 0. If the display driver or | |
| 1066 * hardware does not support gamma translation, or otherwise fails, | |
| 1067 * this function will return -1. | |
| 1068 */ | |
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1069 extern DECLSPEC int SDLCALL SDL_GetGammaRamp(Uint16 * red, Uint16 * green, |
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1070 Uint16 * blue); |
| 0 | 1071 |
| 1072 /* | |
| 1073 * Maps an RGB triple to an opaque pixel value for a given pixel format | |
| 1074 */ | |
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1075 extern DECLSPEC Uint32 SDLCALL SDL_MapRGB |
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1076 (SDL_PixelFormat * format, Uint8 r, Uint8 g, Uint8 b); |
| 0 | 1077 |
| 1078 /* | |
| 1079 * Maps an RGBA quadruple to a pixel value for a given pixel format | |
| 1080 */ | |
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1081 extern DECLSPEC Uint32 SDLCALL SDL_MapRGBA(SDL_PixelFormat * format, |
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1082 Uint8 r, Uint8 g, Uint8 b, |
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1083 Uint8 a); |
| 0 | 1084 |
| 1085 /* | |
| 1086 * Maps a pixel value into the RGB components for a given pixel format | |
| 1087 */ | |
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1088 extern DECLSPEC void SDLCALL SDL_GetRGB(Uint32 pixel, SDL_PixelFormat * fmt, |
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1089 Uint8 * r, Uint8 * g, Uint8 * b); |
| 0 | 1090 |
| 1091 /* | |
| 1092 * Maps a pixel value into the RGBA components for a given pixel format | |
| 1093 */ | |
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1094 extern DECLSPEC void SDLCALL SDL_GetRGBA(Uint32 pixel, SDL_PixelFormat * fmt, |
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1095 Uint8 * r, Uint8 * g, Uint8 * b, |
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1096 Uint8 * a); |
| 0 | 1097 |
| 1098 /* | |
| 1099 * Allocate and free an RGB surface (must be called after SDL_SetVideoMode) | |
| 1100 * If the depth is 4 or 8 bits, an empty palette is allocated for the surface. | |
| 1101 * If the depth is greater than 8 bits, the pixel format is set using the | |
| 1102 * flags '[RGB]mask'. | |
| 1103 * If the function runs out of memory, it will return NULL. | |
| 1104 * | |
| 1105 * The 'flags' tell what kind of surface to create. | |
| 1106 * SDL_SRCCOLORKEY indicates that the surface will be used for colorkey blits. | |
| 1670 | 1107 * SDL_SRCALPHA means that the surface will be used for alpha blits. |
| 0 | 1108 */ |
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1109 extern DECLSPEC SDL_Surface *SDLCALL SDL_CreateRGBSurface |
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1110 (Uint32 flags, int width, int height, int depth, |
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1111 Uint32 Rmask, Uint32 Gmask, Uint32 Bmask, Uint32 Amask); |
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1112 extern DECLSPEC SDL_Surface *SDLCALL SDL_CreateRGBSurfaceFrom(void *pixels, |
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1113 int width, |
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1114 int height, |
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1115 int depth, |
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1116 int pitch, |
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1117 Uint32 Rmask, |
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1118 Uint32 Gmask, |
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1119 Uint32 Bmask, |
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1120 Uint32 Amask); |
| 1670 | 1121 extern DECLSPEC SDL_Surface *SDLCALL |
| 1122 SDL_CreateRGBSurfaceFromTexture(SDL_TextureID textureID); | |
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1123 extern DECLSPEC void SDLCALL SDL_FreeSurface(SDL_Surface * surface); |
| 0 | 1124 |
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1125 /** |
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1126 * \fn int SDL_SetSurfacePalette(SDL_Surface *surface, SDL_Palette *palette) |
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1127 * |
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1128 * \brief Set the palette used by a surface. |
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1129 * |
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1130 * \return 0, or -1 if the surface format doesn't use a palette. |
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1131 * |
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1132 * \note A single palette can be shared with many surfaces. |
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1133 */ |
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1134 extern DECLSPEC int SDLCALL SDL_SetSurfacePalette(SDL_Surface * surface, |
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1135 SDL_Palette * palette); |
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1136 |
| 0 | 1137 /* |
| 1138 * SDL_LockSurface() sets up a surface for directly accessing the pixels. | |
| 1139 * Between calls to SDL_LockSurface()/SDL_UnlockSurface(), you can write | |
| 1140 * to and read from 'surface->pixels', using the pixel format stored in | |
| 1141 * 'surface->format'. Once you are done accessing the surface, you should | |
| 1142 * use SDL_UnlockSurface() to release it. | |
| 1143 * | |
| 1144 * Not all surfaces require locking. If SDL_MUSTLOCK(surface) evaluates | |
| 1145 * to 0, then you can read and write to the surface at any time, and the | |
| 1670 | 1146 * pixel format of the surface will not change. |
| 0 | 1147 * |
| 1148 * No operating system or library calls should be made between lock/unlock | |
| 1149 * pairs, as critical system locks may be held during this time. | |
| 1150 * | |
| 1151 * SDL_LockSurface() returns 0, or -1 if the surface couldn't be locked. | |
| 1152 */ | |
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1153 extern DECLSPEC int SDLCALL SDL_LockSurface(SDL_Surface * surface); |
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1154 extern DECLSPEC void SDLCALL SDL_UnlockSurface(SDL_Surface * surface); |
| 0 | 1155 |
| 1156 /* | |
| 1157 * Load a surface from a seekable SDL data source (memory or file.) | |
| 1158 * If 'freesrc' is non-zero, the source will be closed after being read. | |
| 1159 * Returns the new surface, or NULL if there was an error. | |
| 1160 * The new surface should be freed with SDL_FreeSurface(). | |
| 1161 */ | |
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1162 extern DECLSPEC SDL_Surface *SDLCALL SDL_LoadBMP_RW(SDL_RWops * src, |
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1163 int freesrc); |
| 0 | 1164 |
| 1165 /* Convenience macro -- load a surface from a file */ | |
| 1166 #define SDL_LoadBMP(file) SDL_LoadBMP_RW(SDL_RWFromFile(file, "rb"), 1) | |
| 1167 | |
| 1168 /* | |
| 1169 * Save a surface to a seekable SDL data source (memory or file.) | |
| 1170 * If 'freedst' is non-zero, the source will be closed after being written. | |
| 1171 * Returns 0 if successful or -1 if there was an error. | |
| 1172 */ | |
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1173 extern DECLSPEC int SDLCALL SDL_SaveBMP_RW |
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1174 (SDL_Surface * surface, SDL_RWops * dst, int freedst); |
| 0 | 1175 |
| 1176 /* Convenience macro -- save a surface to a file */ | |
| 1177 #define SDL_SaveBMP(surface, file) \ | |
| 1178 SDL_SaveBMP_RW(surface, SDL_RWFromFile(file, "wb"), 1) | |
| 1179 | |
| 1180 /* | |
| 1181 * Sets the color key (transparent pixel) in a blittable surface. | |
| 1182 * If 'flag' is SDL_SRCCOLORKEY (optionally OR'd with SDL_RLEACCEL), | |
| 1183 * 'key' will be the transparent pixel in the source image of a blit. | |
| 1184 * SDL_RLEACCEL requests RLE acceleration for the surface if present, | |
| 1185 * and removes RLE acceleration if absent. | |
| 1186 * If 'flag' is 0, this function clears any current color key. | |
| 1187 * This function returns 0, or -1 if there was an error. | |
| 1188 */ | |
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1189 extern DECLSPEC int SDLCALL SDL_SetColorKey |
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1190 (SDL_Surface * surface, Uint32 flag, Uint32 key); |
| 0 | 1191 |
| 1192 /* | |
| 1193 * This function sets the alpha value for the entire surface, as opposed to | |
| 1194 * using the alpha component of each pixel. This value measures the range | |
| 1195 * of transparency of the surface, 0 being completely transparent to 255 | |
| 1196 * being completely opaque. An 'alpha' value of 255 causes blits to be | |
| 1197 * opaque, the source pixels copied to the destination (the default). Note | |
| 1198 * that per-surface alpha can be combined with colorkey transparency. | |
| 1199 * | |
| 1200 * If 'flag' is 0, alpha blending is disabled for the surface. | |
| 1201 * If 'flag' is SDL_SRCALPHA, alpha blending is enabled for the surface. | |
| 1202 * OR:ing the flag with SDL_RLEACCEL requests RLE acceleration for the | |
| 1203 * surface; if SDL_RLEACCEL is not specified, the RLE accel will be removed. | |
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1204 * |
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1205 * The 'alpha' parameter is ignored for surfaces that have an alpha channel. |
| 0 | 1206 */ |
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1207 extern DECLSPEC int SDLCALL SDL_SetAlpha(SDL_Surface * surface, Uint32 flag, |
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1208 Uint8 alpha); |
| 0 | 1209 |
| 1210 /* | |
| 1211 * Sets the clipping rectangle for the destination surface in a blit. | |
| 1212 * | |
| 1213 * If the clip rectangle is NULL, clipping will be disabled. | |
| 1214 * If the clip rectangle doesn't intersect the surface, the function will | |
| 1215 * return SDL_FALSE and blits will be completely clipped. Otherwise the | |
| 1216 * function returns SDL_TRUE and blits to the surface will be clipped to | |
| 1217 * the intersection of the surface area and the clipping rectangle. | |
| 1218 * | |
| 1219 * Note that blits are automatically clipped to the edges of the source | |
| 1220 * and destination surfaces. | |
| 1221 */ | |
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1222 extern DECLSPEC SDL_bool SDLCALL SDL_SetClipRect(SDL_Surface * surface, |
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1223 const SDL_Rect * rect); |
| 0 | 1224 |
| 1225 /* | |
| 1226 * Gets the clipping rectangle for the destination surface in a blit. | |
| 1227 * 'rect' must be a pointer to a valid rectangle which will be filled | |
| 1228 * with the correct values. | |
| 1229 */ | |
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1230 extern DECLSPEC void SDLCALL SDL_GetClipRect(SDL_Surface * surface, |
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1231 SDL_Rect * rect); |
| 0 | 1232 |
| 1233 /* | |
| 1234 * Creates a new surface of the specified format, and then copies and maps | |
| 1235 * the given surface to it so the blit of the converted surface will be as | |
| 1236 * fast as possible. If this function fails, it returns NULL. | |
| 1237 * | |
| 1238 * The 'flags' parameter is passed to SDL_CreateRGBSurface() and has those | |
| 1239 * semantics. You can also pass SDL_RLEACCEL in the flags parameter and | |
| 1240 * SDL will try to RLE accelerate colorkey and alpha blits in the resulting | |
| 1241 * surface. | |
| 1242 * | |
| 1243 * This function is used internally by SDL_DisplayFormat(). | |
| 1244 */ | |
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1245 extern DECLSPEC SDL_Surface *SDLCALL SDL_ConvertSurface |
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1246 (SDL_Surface * src, SDL_PixelFormat * fmt, Uint32 flags); |
| 0 | 1247 |
| 1248 /* | |
| 1670 | 1249 * This function performs a fast fill of the given rectangle with 'color' |
| 1250 * The given rectangle is clipped to the destination surface clip area | |
| 1251 * and the final fill rectangle is saved in the passed in pointer. | |
| 1252 * If 'dstrect' is NULL, the whole surface will be filled with 'color' | |
| 1253 * The color should be a pixel of the format used by the surface, and | |
| 1254 * can be generated by the SDL_MapRGB() function. | |
| 1255 * This function returns 0 on success, or -1 on error. | |
| 1256 */ | |
| 1257 extern DECLSPEC int SDLCALL SDL_FillRect | |
| 1258 (SDL_Surface * dst, SDL_Rect * dstrect, Uint32 color); | |
| 1259 | |
| 1260 /* | |
| 0 | 1261 * This performs a fast blit from the source surface to the destination |
| 1262 * surface. It assumes that the source and destination rectangles are | |
| 1263 * the same size. If either 'srcrect' or 'dstrect' are NULL, the entire | |
| 1264 * surface (src or dst) is copied. The final blit rectangles are saved | |
| 1265 * in 'srcrect' and 'dstrect' after all clipping is performed. | |
| 1266 * If the blit is successful, it returns 0, otherwise it returns -1. | |
| 1267 * | |
| 1268 * The blit function should not be called on a locked surface. | |
| 1269 * | |
| 1270 * The blit semantics for surfaces with and without alpha and colorkey | |
| 1271 * are defined as follows: | |
| 1272 * | |
| 1273 * RGBA->RGB: | |
| 1274 * SDL_SRCALPHA set: | |
| 1275 * alpha-blend (using alpha-channel). | |
| 1276 * SDL_SRCCOLORKEY ignored. | |
| 1277 * SDL_SRCALPHA not set: | |
| 1278 * copy RGB. | |
| 1279 * if SDL_SRCCOLORKEY set, only copy the pixels matching the | |
| 1280 * RGB values of the source colour key, ignoring alpha in the | |
| 1281 * comparison. | |
| 1282 * | |
| 1283 * RGB->RGBA: | |
| 1284 * SDL_SRCALPHA set: | |
| 1285 * alpha-blend (using the source per-surface alpha value); | |
| 1286 * set destination alpha to opaque. | |
| 1287 * SDL_SRCALPHA not set: | |
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1288 * copy RGB, set destination alpha to source per-surface alpha value. |
| 0 | 1289 * both: |
| 1290 * if SDL_SRCCOLORKEY set, only copy the pixels matching the | |
| 1291 * source colour key. | |
| 1292 * | |
| 1293 * RGBA->RGBA: | |
| 1294 * SDL_SRCALPHA set: | |
| 1295 * alpha-blend (using the source alpha channel) the RGB values; | |
| 1296 * leave destination alpha untouched. [Note: is this correct?] | |
| 1297 * SDL_SRCCOLORKEY ignored. | |
| 1298 * SDL_SRCALPHA not set: | |
| 1299 * copy all of RGBA to the destination. | |
| 1300 * if SDL_SRCCOLORKEY set, only copy the pixels matching the | |
| 1301 * RGB values of the source colour key, ignoring alpha in the | |
| 1302 * comparison. | |
| 1303 * | |
| 1304 * RGB->RGB: | |
| 1305 * SDL_SRCALPHA set: | |
| 1306 * alpha-blend (using the source per-surface alpha value). | |
| 1307 * SDL_SRCALPHA not set: | |
| 1308 * copy RGB. | |
| 1309 * both: | |
| 1310 * if SDL_SRCCOLORKEY set, only copy the pixels matching the | |
| 1311 * source colour key. | |
| 1312 * | |
| 1313 * If either of the surfaces were in video memory, and the blit returns -2, | |
| 1314 * the video memory was lost, so it should be reloaded with artwork and | |
| 1315 * re-blitted: | |
| 1316 while ( SDL_BlitSurface(image, imgrect, screen, dstrect) == -2 ) { | |
| 1317 while ( SDL_LockSurface(image) < 0 ) | |
| 1318 Sleep(10); | |
| 1319 -- Write image pixels to image->pixels -- | |
| 1320 SDL_UnlockSurface(image); | |
| 1321 } | |
| 1322 * This happens under DirectX 5.0 when the system switches away from your | |
| 1323 * fullscreen application. The lock will also fail until you have access | |
| 1324 * to the video memory again. | |
| 1325 */ | |
| 1326 /* You should call SDL_BlitSurface() unless you know exactly how SDL | |
| 1327 blitting works internally and how to use the other blit functions. | |
| 1328 */ | |
| 1329 #define SDL_BlitSurface SDL_UpperBlit | |
| 1330 | |
| 1331 /* This is the public blit function, SDL_BlitSurface(), and it performs | |
| 1332 rectangle validation and clipping before passing it to SDL_LowerBlit() | |
| 1333 */ | |
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1334 extern DECLSPEC int SDLCALL SDL_UpperBlit |
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1335 (SDL_Surface * src, SDL_Rect * srcrect, |
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1336 SDL_Surface * dst, SDL_Rect * dstrect); |
| 0 | 1337 /* This is a semi-private blit function and it performs low-level surface |
| 1338 blitting only. | |
| 1339 */ | |
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1340 extern DECLSPEC int SDLCALL SDL_LowerBlit |
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1341 (SDL_Surface * src, SDL_Rect * srcrect, |
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1342 SDL_Surface * dst, SDL_Rect * dstrect); |
| 0 | 1343 |
| 1670 | 1344 /** |
| 1345 * \fn int SDL_SoftStretch(SDL_Surface * src, SDL_Rect * srcrect, SDL_Surface * dst, SDL_Rect * dstrect) | |
| 0 | 1346 * |
| 1670 | 1347 * \brief Perform a fast, low quality, stretch blit between two surfaces of the same pixel format. |
| 1348 * \note This function uses a static buffer, and is not thread-safe. | |
| 0 | 1349 */ |
| 1670 | 1350 extern DECLSPEC int SDLCALL SDL_SoftStretch(SDL_Surface * src, |
| 1351 SDL_Rect * srcrect, | |
| 1352 SDL_Surface * dst, | |
| 1353 SDL_Rect * dstrect); | |
| 0 | 1354 |
| 1355 /* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */ | |
| 1356 /* OpenGL support functions. */ | |
| 1357 /* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */ | |
| 1358 | |
| 1359 /* | |
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1360 * Dynamically load an OpenGL library, or the default one if path is NULL |
| 0 | 1361 * |
| 1362 * If you do this, you need to retrieve all of the GL functions used in | |
| 1363 * your program from the dynamic library using SDL_GL_GetProcAddress(). | |
| 1364 */ | |
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1365 extern DECLSPEC int SDLCALL SDL_GL_LoadLibrary(const char *path); |
| 0 | 1366 |
| 1367 /* | |
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1368 * Get the address of a GL function |
| 0 | 1369 */ |
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1370 extern DECLSPEC void *SDLCALL SDL_GL_GetProcAddress(const char *proc); |
| 0 | 1371 |
| 1372 /* | |
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1373 * Set an attribute of the OpenGL subsystem before window creation. |
| 0 | 1374 */ |
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1375 extern DECLSPEC int SDLCALL SDL_GL_SetAttribute(SDL_GLattr attr, int value); |
| 0 | 1376 |
| 1377 /* | |
| 1378 * Get an attribute of the OpenGL subsystem from the windowing | |
| 1379 * interface, such as glX. This is of course different from getting | |
| 1380 * the values from SDL's internal OpenGL subsystem, which only | |
| 1381 * stores the values you request before initialization. | |
| 1382 * | |
| 1383 * Developers should track the values they pass into SDL_GL_SetAttribute | |
| 1384 * themselves if they want to retrieve these values. | |
| 1385 */ | |
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1386 extern DECLSPEC int SDLCALL SDL_GL_GetAttribute(SDL_GLattr attr, int *value); |
| 0 | 1387 |
| 1388 /* | |
| 1389 * Swap the OpenGL buffers, if double-buffering is supported. | |
| 1390 */ | |
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1391 extern DECLSPEC void SDLCALL SDL_GL_SwapBuffers(void); |
| 0 | 1392 |
| 1393 /* Ends C function definitions when using C++ */ | |
| 1394 #ifdef __cplusplus | |
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1395 /* *INDENT-OFF* */ |
| 0 | 1396 } |
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1397 /* *INDENT-ON* */ |
| 0 | 1398 #endif |
| 1399 #include "close_code.h" | |
| 1400 | |
| 1401 #endif /* _SDL_video_h */ | |
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1402 |
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1403 /* vi: set ts=4 sw=4 expandtab: */ |