Mercurial > sdl-ios-xcode
annotate include/SDL_video.h @ 1681:80a5e6a4e1e2 SDL-1.3
Working on paletted display and texture support (two different issues)
| author | Sam Lantinga <slouken@libsdl.org> |
|---|---|
| date | Thu, 15 Jun 2006 07:07:07 +0000 |
| parents | 90bf530ced8e |
| children | 7ae8018b2e5d |
| 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 | |
| 255 /* information needed for surfaces requiring locks */ | |
| 256 int locked; | |
| 257 void *lock_data; | |
| 258 | |
| 259 /* clipping information */ | |
| 260 SDL_Rect clip_rect; /* Read-only */ | |
| 261 | |
| 262 /* info for fast blit mapping to other surfaces */ | |
| 263 struct SDL_BlitMap *map; /* Private */ | |
| 264 | |
| 265 /* format version, bumped at every change to invalidate blit maps */ | |
| 266 unsigned int format_version; /* Private */ | |
| 267 | |
| 268 /* Reference count -- used when freeing surface */ | |
| 269 int refcount; /* Read-mostly */ | |
| 270 } SDL_Surface; | |
| 271 | |
| 272 /* typedef for private surface blitting functions */ | |
| 273 typedef int (*SDL_blit) (struct SDL_Surface * src, SDL_Rect * srcrect, | |
| 274 struct SDL_Surface * dst, SDL_Rect * dstrect); | |
| 275 | |
| 276 | |
| 277 /** | |
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278 * \enum SDL_GLattr |
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279 * |
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280 * \brief OpenGL configuration attributes |
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281 */ |
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282 typedef enum |
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283 { |
| 0 | 284 SDL_GL_RED_SIZE, |
| 285 SDL_GL_GREEN_SIZE, | |
| 286 SDL_GL_BLUE_SIZE, | |
| 287 SDL_GL_ALPHA_SIZE, | |
| 288 SDL_GL_BUFFER_SIZE, | |
| 289 SDL_GL_DOUBLEBUFFER, | |
| 290 SDL_GL_DEPTH_SIZE, | |
| 291 SDL_GL_STENCIL_SIZE, | |
| 292 SDL_GL_ACCUM_RED_SIZE, | |
| 293 SDL_GL_ACCUM_GREEN_SIZE, | |
| 294 SDL_GL_ACCUM_BLUE_SIZE, | |
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295 SDL_GL_ACCUM_ALPHA_SIZE, |
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296 SDL_GL_STEREO, |
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297 SDL_GL_MULTISAMPLEBUFFERS, |
| 1656 | 298 SDL_GL_MULTISAMPLESAMPLES, |
| 299 SDL_GL_ACCELERATED_VISUAL, | |
| 300 SDL_GL_SWAP_CONTROL | |
| 0 | 301 } SDL_GLattr; |
| 302 | |
| 303 | |
| 304 /* Function prototypes */ | |
| 305 | |
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306 /** |
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307 * \fn int SDL_GetNumVideoDrivers(void) |
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308 * |
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309 * \brief Get the number of video drivers compiled into SDL |
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310 * |
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311 * \sa SDL_GetVideoDriver() |
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312 */ |
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313 extern DECLSPEC int SDLCALL SDL_GetNumVideoDrivers(void); |
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314 |
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315 /** |
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316 * \fn const char *SDL_GetVideoDriver(int index) |
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317 * |
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318 * \brief Get the name of a built in video driver. |
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319 * |
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320 * \note The video drivers are presented in the order in which they are |
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321 * normally checked during initialization. |
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322 * |
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323 * \sa SDL_GetNumVideoDrivers() |
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324 */ |
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325 extern DECLSPEC const char *SDLCALL SDL_GetVideoDriver(int index); |
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326 |
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327 /** |
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328 * \fn int SDL_VideoInit(const char *driver_name, Uint32 flags) |
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329 * |
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330 * \brief Initialize the video subsystem, optionally specifying a video driver. |
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331 * |
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332 * \param driver_name Initialize a specific driver by name, or NULL for the default video driver. |
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333 * \param flags FIXME: Still needed? |
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334 * |
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335 * \return 0 on success, -1 on error |
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336 * |
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337 * This function initializes the video subsystem; setting up a connection |
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338 * to the window manager, etc, and determines the available display modes |
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339 * and pixel formats, but does not initialize a window or graphics mode. |
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340 * |
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341 * \sa SDL_VideoQuit() |
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342 */ |
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343 extern DECLSPEC int SDLCALL SDL_VideoInit(const char *driver_name, |
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344 Uint32 flags); |
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345 |
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346 /** |
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347 * \fn void SDL_VideoQuit(void) |
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348 * |
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349 * \brief Shuts down the video subsystem. |
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350 * |
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351 * This function closes all windows, and restores the original video mode. |
| 0 | 352 * |
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353 * \sa SDL_VideoInit() |
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354 */ |
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355 extern DECLSPEC void SDLCALL SDL_VideoQuit(void); |
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356 |
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357 /** |
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358 * \fn const char *SDL_GetCurrentVideoDriver(void) |
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359 * |
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360 * \brief Returns the name of the currently initialized video driver. |
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361 * |
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362 * \return The name of the current video driver or NULL if no driver |
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363 * has been initialized |
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364 * |
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365 * \sa SDL_GetNumVideoDrivers() |
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366 * \sa SDL_GetVideoDriver() |
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367 */ |
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368 extern DECLSPEC const char *SDLCALL SDL_GetCurrentVideoDriver(void); |
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369 |
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370 /** |
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371 * \fn int SDL_GetNumVideoDisplays(void) |
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372 * |
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373 * \brief Returns the number of available video displays. |
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374 * |
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375 * \sa SDL_SelectVideoDisplay() |
| 0 | 376 */ |
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377 extern DECLSPEC int SDLCALL SDL_GetNumVideoDisplays(void); |
| 0 | 378 |
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379 /** |
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380 * \fn int SDL_SelectVideoDisplay(int index) |
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381 * |
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382 * \brief Set the index of the currently selected display. |
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383 * |
| 1670 | 384 * \return The index of the currently selected display. |
| 385 * | |
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386 * \note You can query the currently selected display by passing an index of -1. |
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387 * |
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388 * \sa SDL_GetNumVideoDisplays() |
| 0 | 389 */ |
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390 extern DECLSPEC int SDLCALL SDL_SelectVideoDisplay(int index); |
| 0 | 391 |
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392 /** |
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393 * \fn int SDL_GetNumDisplayModes(void) |
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394 * |
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395 * \brief Returns the number of available display modes for the current display. |
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396 * |
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397 * \sa SDL_GetDisplayMode() |
| 0 | 398 */ |
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399 extern DECLSPEC int SDLCALL SDL_GetNumDisplayModes(void); |
| 0 | 400 |
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401 /** |
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402 * \fn const SDL_DisplayMode *SDL_GetDisplayMode(int index) |
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403 * |
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404 * \brief Retrieve information about a specific display mode. |
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405 * |
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406 * \note The display modes are sorted in this priority: |
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407 * \li bits per pixel -> more colors to fewer colors |
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408 * \li width -> largest to smallest |
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409 * \li height -> largest to smallest |
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410 * \li refresh rate -> highest to lowest |
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411 * |
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412 * \sa SDL_GetNumDisplayModes() |
| 0 | 413 */ |
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414 extern DECLSPEC const SDL_DisplayMode *SDLCALL SDL_GetDisplayMode(int index); |
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415 |
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416 /** |
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417 * \fn const SDL_DisplayMode *SDL_GetDesktopDisplayMode(void) |
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418 * |
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419 * \brief Retrieve information about the desktop display mode for the current display. |
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420 */ |
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421 extern DECLSPEC const SDL_DisplayMode *SDLCALL |
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422 SDL_GetDesktopDisplayMode(void); |
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423 |
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424 /** |
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425 * \fn const SDL_DisplayMode *SDL_GetCurrentDisplayMode(void) |
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426 * |
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427 * \brief Retrieve information about the current display mode. |
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428 */ |
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429 extern DECLSPEC const SDL_DisplayMode *SDLCALL |
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430 SDL_GetCurrentDisplayMode(void); |
| 0 | 431 |
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432 /** |
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433 * \fn SDL_DisplayMode *SDL_GetClosestDisplayMode(const SDL_DisplayMode *mode, SDL_DisplayMode *closest) |
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434 * |
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435 * \brief Get the closest match to the requested display mode. |
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436 * |
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437 * \param mode The desired display mode |
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438 * \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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439 * |
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440 * \return The passed in value 'closest', or NULL if no matching video mode was available. |
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441 * |
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442 * 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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443 * |
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444 * \sa SDL_GetNumDisplayModes() |
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445 * \sa SDL_GetDisplayMode() |
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446 */ |
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447 extern DECLSPEC SDL_DisplayMode *SDLCALL SDL_GetClosestDisplayMode(const |
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448 SDL_DisplayMode |
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449 * mode, |
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450 SDL_DisplayMode |
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451 * closest); |
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452 |
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453 /** |
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454 * \fn int SDL_SetDisplayMode(const SDL_DisplayMode *mode) |
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455 * |
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456 * \brief Set up the closest available mode on the current display. |
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457 * |
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458 * \param mode The desired display mode |
| 0 | 459 * |
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460 * \return 0 on success, or -1 if setting the display mode failed. |
| 0 | 461 */ |
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462 extern DECLSPEC int SDLCALL SDL_SetDisplayMode(const SDL_DisplayMode * mode); |
| 0 | 463 |
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464 /** |
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465 * \fn int SDL_SetDisplayPalette(const SDL_Color *colors, int firstcolor, int ncolors) |
| 1670 | 466 * |
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467 * \brief Set the palette entries for indexed display modes. |
| 1670 | 468 * |
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469 * \return 0 on success, or -1 if the display mode isn't palettized or the colors couldn't be set. |
| 1670 | 470 */ |
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471 extern DECLSPEC int SDLCALL SDL_SetDisplayPalette(const SDL_Color * colors, |
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472 int firstcolor, |
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473 int ncolors); |
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474 |
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475 /** |
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476 * \fn int SDL_GetDisplayPalette(SDL_Color *colors, int firstcolor, int ncolors) |
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477 * |
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478 * \brief Gets the palette entries for indexed display modes. |
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479 * |
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480 * \return 0 on success, or -1 if the display mode isn't palettized |
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481 */ |
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482 extern DECLSPEC int SDLCALL SDL_GetDisplayPalette(SDL_Color * colors, |
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483 int firstcolor, |
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484 int ncolors); |
| 1670 | 485 |
| 486 /** | |
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487 * \fn SDL_WindowID SDL_CreateWindow(const char *title, int x, int y, int w, int h, Uint32 flags) |
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488 * |
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489 * \brief Create a window with the specified position, dimensions, and flags. |
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490 * |
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491 * \param title The title of the window |
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492 * \param x The x position of the window |
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493 * \param y The y position of the window |
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494 * \param w The width of the window |
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495 * \param h The height of the window |
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496 * \param flags The flags for the window |
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497 * |
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498 * \return The id of the window created, or zero if window creation failed. |
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499 * |
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500 * \note Setting the position to -1, -1, indicates any position is fine. |
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501 * |
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502 * \sa SDL_DestroyWindow() |
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503 */ |
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504 extern DECLSPEC SDL_WindowID SDLCALL SDL_CreateWindow(const char *title, |
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505 int x, int y, int w, |
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506 int h, Uint32 flags); |
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507 |
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508 /** |
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509 * \fn SDL_WindowID SDL_CreateWindowFrom(void *data) |
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510 * |
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511 * \brief Create an SDL window struct from an existing native window. |
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512 * |
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513 * \param data A pointer to driver-dependent window creation data |
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514 * |
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515 * \return The id of the window created, or zero if window creation failed. |
| 0 | 516 * |
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517 * \warning This function is NOT SUPPORTED, use at your own risk! |
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518 * |
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519 * \sa SDL_DestroyWindow() |
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520 */ |
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521 extern DECLSPEC SDL_WindowID SDLCALL SDL_CreateWindowFrom(const void *data); |
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522 |
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523 /** |
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524 * \fn Uint32 SDL_GetWindowFlags(SDL_WindowID windowID) |
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525 * |
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526 * \brief Get the window flags. |
| 0 | 527 */ |
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528 extern DECLSPEC Uint32 SDLCALL SDL_GetWindowFlags(SDL_WindowID windowID); |
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529 |
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530 /** |
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531 * \fn void SDL_SetWindowTitle(SDL_WindowID windowID, const char *title) |
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532 * |
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533 * \brief Set the title of the window, in UTF-8 format. |
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534 * |
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535 * \sa SDL_GetWindowTitle() |
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536 */ |
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537 extern DECLSPEC void SDLCALL SDL_SetWindowTitle(SDL_WindowID windowID, |
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538 const char *title); |
| 0 | 539 |
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540 /** |
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541 * \fn const char *SDL_GetWindowTitle(SDL_WindowID windowID) |
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542 * |
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543 * \brief Get the title of the window, in UTF-8 format. |
| 0 | 544 * |
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545 * \sa SDL_SetWindowTitle() |
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546 */ |
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547 extern DECLSPEC const char *SDLCALL SDL_GetWindowTitle(SDL_WindowID windowID); |
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548 |
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549 /** |
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550 * \fn void SDL_SetWindowIcon(SDL_Surface *icon) |
| 0 | 551 * |
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552 * \brief Set the icon of the window. |
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553 * |
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554 * \param icon The icon for the window |
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555 * |
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556 * 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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557 */ |
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558 extern DECLSPEC void SDLCALL SDL_SetWindowIcon(SDL_Surface * icon); |
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559 |
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560 /** |
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561 * \fn void SDL_SetWindowData(SDL_WindowID windowID, void *userdata) |
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562 * |
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563 * \brief Associate an arbitrary pointer with the window. |
| 0 | 564 * |
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565 * \sa SDL_GetWindowData() |
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566 */ |
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567 extern DECLSPEC void SDLCALL SDL_SetWindowData(SDL_WindowID windowID, |
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568 void *userdata); |
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569 |
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570 /** |
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571 * \fn void *SDL_GetWindowData(SDL_WindowID windowID) |
| 0 | 572 * |
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573 * \brief Retrieve the data pointer associated with the window. |
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574 * |
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575 * \sa SDL_SetWindowData() |
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576 */ |
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577 extern DECLSPEC void *SDLCALL SDL_GetWindowData(SDL_WindowID windowID); |
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578 |
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579 /** |
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580 * \fn void SDL_SetWindowPosition(SDL_WindowID windowID, int x, int y) |
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581 * |
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582 * \brief Set the position of the window. |
| 0 | 583 * |
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584 * \sa SDL_GetWindowPosition() |
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585 */ |
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586 extern DECLSPEC void SDLCALL SDL_SetWindowPosition(SDL_WindowID windowID, |
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587 int x, int y); |
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588 |
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589 /** |
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590 * \fn void SDL_GetWindowPosition(SDL_WindowID windowID, int *x, int *y) |
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591 * |
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592 * \brief Get the position of the window. |
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593 * |
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594 * \sa SDL_SetWindowPosition() |
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595 */ |
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596 extern DECLSPEC void SDLCALL SDL_GetWindowPosition(SDL_WindowID windowID, |
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597 int *x, int *y); |
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598 |
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599 /** |
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600 * \fn void SDL_SetWindowSize(SDL_WindowID windowID, int w, int w) |
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601 * |
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602 * \brief Set the size of the window's client area. |
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603 * |
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604 * \note You can't change the size of a fullscreen window, it automatically |
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605 * matches the size of the display mode. |
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606 * |
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607 * \sa SDL_GetWindowSize() |
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608 */ |
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609 extern DECLSPEC void SDLCALL SDL_SetWindowSize(SDL_WindowID windowID, int w, |
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610 int h); |
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611 |
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612 /** |
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613 * \fn void SDL_GetWindowSize(SDL_WindowID windowID, int *w, int *w) |
| 0 | 614 * |
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615 * \brief Get the size of the window's client area. |
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616 * |
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617 * \sa SDL_SetWindowSize() |
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618 */ |
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619 extern DECLSPEC void SDLCALL SDL_GetWindowSize(SDL_WindowID windowID, int *w, |
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620 int *h); |
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621 |
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622 /** |
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623 * \fn void SDL_ShowWindow(SDL_WindowID windowID) |
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624 * |
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625 * \brief Show the window |
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626 * |
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627 * \sa SDL_HideWindow() |
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628 */ |
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629 extern DECLSPEC void SDLCALL SDL_ShowWindow(SDL_WindowID windowID); |
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630 |
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631 /** |
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632 * \fn void SDL_HideWindow(SDL_WindowID windowID) |
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633 * |
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634 * \brief Hide the window |
| 0 | 635 * |
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636 * \sa SDL_ShowWindow() |
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637 */ |
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638 extern DECLSPEC void SDLCALL SDL_HideWindow(SDL_WindowID windowID); |
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639 |
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640 /** |
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641 * \fn void SDL_RaiseWindow(SDL_WindowID windowID) |
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642 * |
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643 * \brief Raise the window so it's above other windows. |
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644 */ |
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645 extern DECLSPEC void SDLCALL SDL_RaiseWindow(SDL_WindowID windowID); |
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646 |
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647 /** |
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648 * \fn void SDL_MaximizeWindow(SDL_WindowID windowID) |
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649 * |
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650 * \brief Make the window as large as possible. |
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651 * |
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652 * \sa SDL_RestoreWindow() |
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653 */ |
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654 extern DECLSPEC void SDLCALL SDL_MaximizeWindow(SDL_WindowID windowID); |
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655 |
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656 /** |
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657 * \fn void SDL_MinimizeWindow(SDL_WindowID windowID) |
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658 * |
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659 * \brief Minimize the window to an iconic representation. |
| 0 | 660 * |
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661 * \sa SDL_RestoreWindow() |
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662 */ |
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663 extern DECLSPEC void SDLCALL SDL_MinimizeWindow(SDL_WindowID windowID); |
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664 |
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665 /** |
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666 * \fn void SDL_RestoreWindow(SDL_WindowID windowID) |
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667 * |
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668 * \brief Restore the size and position of a minimized or maximized window. |
| 0 | 669 * |
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670 * \sa SDL_MaximizeWindow() |
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671 * \sa SDL_MinimizeWindow() |
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672 */ |
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673 extern DECLSPEC void SDLCALL SDL_RestoreWindow(SDL_WindowID windowID); |
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674 |
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675 /** |
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676 * \fn void SDL_SetWindowGrab(SDL_WindowID windowID, int mode) |
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677 * |
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678 * \brief Set the window's input grab mode. |
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679 * |
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680 * \param mode This is 1 to grab input, and 0 to release input. |
| 0 | 681 * |
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682 * \sa SDL_GrabMode |
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683 * \sa SDL_GetWindowGrab() |
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684 */ |
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685 extern DECLSPEC void SDLCALL SDL_SetWindowGrab(SDL_WindowID windowID, |
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686 int mode); |
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687 |
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688 /** |
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689 * \fn int SDL_GetWindowGrab(SDL_WindowID windowID) |
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690 * |
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691 * \brief Get the window's input grab mode. |
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692 * |
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693 * \return This returns 1 if input is grabbed, and 0 otherwise. |
| 0 | 694 * |
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695 * \sa SDL_GrabMode |
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696 * \sa SDL_SetWindowGrab() |
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697 */ |
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698 extern DECLSPEC int SDLCALL SDL_GetWindowGrab(SDL_WindowID windowID); |
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699 |
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700 /** |
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701 * \fn void SDL_DestroyWindow(SDL_WindowID windowID) |
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702 * |
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703 * \brief Destroy a window. |
| 0 | 704 */ |
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705 extern DECLSPEC void SDLCALL SDL_DestroyWindow(SDL_WindowID windowID); |
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706 |
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707 /** |
| 1670 | 708 * \fn int SDL_GetNumRenderers(void) |
| 709 * | |
| 710 * \brief Get the number of render managers on the current display. | |
| 711 * | |
| 712 * A render manager is a set of code that handles rendering and texture | |
| 713 * management on a particular display. Normally there is only one, but | |
| 714 * some drivers may have several available with different capabilities. | |
| 715 * | |
| 716 * \sa SDL_GetRendererInfo() | |
| 717 * \sa SDL_CreateRenderer() | |
| 718 */ | |
| 719 extern DECLSPEC int SDLCALL SDL_GetNumRenderers(void); | |
| 720 | |
| 721 /** | |
| 722 * \fn SDL_RendererInfo *SDL_GetRendererInfo(int index) | |
| 723 * | |
| 724 * \brief Get information about a specific render manager on the current | |
| 725 * display. | |
| 726 * | |
| 727 * \sa SDL_CreateRenderer() | |
| 728 */ | |
| 729 extern DECLSPEC int SDLCALL SDL_GetRendererInfo(int index, | |
| 730 SDL_RendererInfo * info); | |
| 731 | |
| 732 /** | |
| 733 * \fn int SDL_CreateRenderer(SDL_WindowID window, int index, Uint32 flags) | |
| 734 * | |
| 735 * \brief Create and make active a 2D rendering context for a window. | |
| 736 * | |
| 737 * \param windowID The window used for rendering. | |
| 738 * \param index The index of the render manager to initialize, or -1 to initialize the first one supporting the requested flags. | |
| 739 * \param flags SDL_RendererFlags | |
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740 * |
| 1670 | 741 * \return 0 on success, -1 if the flags were not supported, or -2 if |
| 742 * there isn't enough memory to support the requested flags | |
| 743 * | |
| 744 * \sa SDL_SelectRenderer() | |
| 745 * \sa SDL_DestroyRenderer() | |
| 746 */ | |
| 747 extern DECLSPEC int SDLCALL SDL_CreateRenderer(SDL_WindowID windowID, | |
| 748 int index, Uint32 flags); | |
| 749 | |
| 750 /** | |
| 751 * \fn int SDL_SelectRenderer(SDL_WindowID windowID) | |
| 752 * | |
| 753 * \brief Select the rendering context for a particular window. | |
| 754 * | |
| 755 * \return 0 on success, -1 if the selected window doesn't have a | |
| 756 * rendering context. | |
| 757 */ | |
| 758 extern DECLSPEC int SDLCALL SDL_SelectRenderer(SDL_WindowID windowID); | |
| 759 | |
| 760 /** | |
| 761 * \fn SDL_TextureID SDL_CreateTexture(Uint32 format, int access, int w, int h) | |
| 762 * | |
| 763 * \brief Create a texture | |
| 764 * | |
| 765 * \param format The format of the texture | |
| 766 * \param access One of the enumerated values in SDL_TextureAccess | |
| 767 * \param w The width of the texture in pixels | |
| 768 * \param h The height of the texture in pixels | |
| 769 * | |
| 770 * \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. | |
| 771 * | |
| 772 * \sa SDL_QueryTexture() | |
| 773 * \sa SDL_DestroyTexture() | |
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774 */ |
| 1670 | 775 extern DECLSPEC SDL_TextureID SDLCALL SDL_CreateTexture(Uint32 format, |
| 776 int access, int w, | |
| 777 int h); | |
| 778 | |
| 779 /** | |
| 780 * \fn SDL_TextureID SDL_CreateTextureFromSurface(Uint32 format, int access, SDL_Surface *surface) | |
| 781 * | |
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782 * \brief Create a texture from an existing surface. |
| 1670 | 783 * |
| 784 * \param format The format of the texture, or 0 to pick an appropriate format | |
| 785 * \param access One of the enumerated values in SDL_TextureAccess | |
| 786 * \param surface The surface containing pixel data used to fill the texture | |
| 787 * | |
| 788 * \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. | |
| 789 * | |
| 790 * \note The surface is not modified or freed by this function. | |
| 791 * | |
| 792 * \sa SDL_QueryTexture() | |
| 793 * \sa SDL_DestroyTexture() | |
| 794 */ | |
| 795 extern DECLSPEC SDL_TextureID SDLCALL SDL_CreateTextureFromSurface(Uint32 | |
| 796 format, | |
| 797 int access, | |
| 798 SDL_Surface | |
| 799 * surface); | |
| 0 | 800 |
| 1670 | 801 /** |
| 802 * \fn int SDL_QueryTexture(SDL_TextureID textureID, Uint32 *format, int *access, int *w, int *h) | |
| 803 * | |
| 804 * \brief Query the attributes of a texture | |
| 805 * | |
| 806 * \param texture A texture to be queried | |
| 807 * \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. | |
| 808 * \param access A pointer filled in with the actual access to the texture. | |
| 809 * \param w A pointer filled in with the width of the texture in pixels | |
| 810 * \param h A pointer filled in with the height of the texture in pixels | |
| 811 * | |
| 812 * \return 0 on success, or -1 if the texture is not valid | |
| 813 */ | |
| 814 extern DECLSPEC int SDLCALL SDL_QueryTexture(SDL_TextureID textureID, | |
| 815 Uint32 * format, int *access, | |
| 816 int *w, int *h); | |
| 817 | |
| 818 /** | |
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819 * \fn int SDL_QueryTexturePixels(SDL_TextureID textureID, void **pixels, int pitch) |
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820 * |
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821 * \brief Query the pixels of a texture, if the texture does not need to be locked for pixel access. |
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822 * |
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823 * \param texture A texture to be queried, which was created with SDL_TextureAccess_Local |
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824 * \param pixels A pointer filled with a pointer to the pixels for the texture |
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825 * \param pitch A pointer filled in with the pitch of the pixel data |
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826 * |
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827 * \return 0 on success, or -1 if the texture is not valid, or must be locked for pixel access. |
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828 */ |
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829 extern DECLSPEC int SDLCALL SDL_QueryTexturePixels(SDL_TextureID textureID, |
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830 void **pixels, int *pitch); |
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831 |
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832 /** |
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833 * \fn int SDL_SetTexturePalette(SDL_TextureID textureID, const SDL_Color * colors, int firstcolor, int ncolors) |
| 1670 | 834 * |
| 835 * \brief Update an indexed texture with a color palette | |
| 836 * | |
| 837 * \param texture The texture to update | |
| 838 * \param colors The array of RGB color data | |
| 839 * \param firstcolor The first index to update | |
| 840 * \param ncolors The number of palette entries to fill with the color data | |
| 841 * | |
| 842 * \return 0 on success, or -1 if the texture is not valid or not an indexed texture | |
| 843 */ | |
| 844 extern DECLSPEC int SDLCALL SDL_SetTexturePalette(SDL_TextureID textureID, | |
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845 const SDL_Color * colors, |
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846 int firstcolor, |
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847 int ncolors); |
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848 |
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849 /** |
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850 * \fn int SDL_GetTexturePalette(SDL_TextureID textureID, SDL_Color * colors, int firstcolor, int ncolors) |
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851 * |
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852 * \brief Update an indexed texture with a color palette |
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853 * |
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854 * \param texture The texture to update |
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855 * \param colors The array to fill with RGB color data |
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856 * \param firstcolor The first index to retrieve |
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857 * \param ncolors The number of palette entries to retrieve |
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858 * |
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859 * \return 0 on success, or -1 if the texture is not valid or not an indexed texture |
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860 */ |
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861 extern DECLSPEC int SDLCALL SDL_GetTexturePalette(SDL_TextureID textureID, |
| 1670 | 862 SDL_Color * colors, |
| 863 int firstcolor, | |
| 864 int ncolors); | |
| 865 | |
| 866 /** | |
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867 * \fn int SDL_UpdateTexture(SDL_TextureID textureID, const SDL_Rect *rect, const void *pixels, int pitch) |
| 1670 | 868 * |
| 869 * \brief Update the given texture rectangle with new pixel data. | |
| 870 * | |
| 871 * \param texture The texture to update | |
| 872 * \param rect A pointer to the rectangle of pixels to update, or NULL to update the entire texture. | |
| 873 * \param pixels The raw pixel data | |
| 874 * \param pitch The number of bytes between rows of pixel data | |
| 875 * | |
| 876 * \return 0 on success, or -1 if the texture is not valid | |
| 877 * | |
| 878 * \note This is a very slow function for textures not created with SDL_TextureAccess_Local. | |
| 0 | 879 */ |
| 1670 | 880 extern DECLSPEC int SDLCALL SDL_UpdateTexture(SDL_TextureID textureID, |
|
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881 const SDL_Rect * rect, |
| 1670 | 882 const void *pixels, int pitch); |
| 883 | |
| 884 /** | |
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885 * \fn void SDL_LockTexture(SDL_TextureID textureID, const SDL_Rect *rect, int markDirty, void **pixels, int *pitch) |
| 1670 | 886 * |
| 887 * \brief Lock a portion of the texture for pixel access. | |
| 888 * | |
| 889 * \param texture The texture to lock for access, which must have been created with SDL_TextureAccess_Local. | |
| 890 * \param rect A pointer to the rectangle to lock for access. If the rect is NULL, the entire texture will be locked. | |
| 891 * \param markDirty If this is nonzero, the locked area will be marked dirty when the texture is unlocked. | |
| 892 * \param pixels This is filled in with a pointer to the locked pixels, appropriately offset by the locked area. | |
| 893 * \param pitch This is filled in with the pitch of the locked pixels. | |
| 894 * | |
| 895 * \return 0 on success, or -1 if the texture is not valid or was created with SDL_TextureAccess_Remote | |
| 896 * | |
| 897 * \sa SDL_DirtyTexture() | |
| 898 * \sa SDL_UnlockTexture() | |
| 899 */ | |
| 900 extern DECLSPEC int SDLCALL SDL_LockTexture(SDL_TextureID textureID, | |
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901 const SDL_Rect * rect, |
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902 int markDirty, void **pixels, |
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903 int *pitch); |
| 1670 | 904 |
| 905 /** | |
| 906 * \fn void SDL_UnlockTexture(SDL_TextureID textureID) | |
| 907 * | |
| 908 * \brief Unlock a texture, uploading the changes to video memory, if needed. | |
| 909 * | |
| 910 * \sa SDL_LockTexture() | |
| 911 * \sa SDL_DirtyTexture() | |
| 912 */ | |
| 913 extern DECLSPEC void SDLCALL SDL_UnlockTexture(SDL_TextureID textureID); | |
| 914 | |
| 915 /** | |
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916 * \fn void SDL_DirtyTexture(SDL_TextureID textureID, int numrects, const SDL_Rect * rects) |
| 1670 | 917 * |
| 918 * \brief Mark the specified rectangles of the texture as dirty. | |
| 919 * | |
| 920 * \note The texture must have been created with SDL_TextureAccess_Local. | |
| 921 * | |
| 922 * \sa SDL_LockTexture() | |
| 923 * \sa SDL_UnlockTexture() | |
| 924 */ | |
| 925 extern DECLSPEC void SDLCALL SDL_DirtyTexture(SDL_TextureID textureID, | |
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926 int numrects, |
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927 const SDL_Rect * rects); |
| 1670 | 928 |
| 929 /** | |
| 930 * \fn void SDL_SelectRenderTexture(SDL_TextureID textureID) | |
| 931 * | |
| 932 * \brief Select a texture as the rendering target, or 0 to reselect the current window. | |
| 933 * | |
| 934 * \note The texture must have been created with SDL_TextureAccess_Render. | |
| 935 */ | |
| 936 extern DECLSPEC void SDLCALL SDL_SelectRenderTexture(SDL_TextureID textureID); | |
| 937 | |
| 938 /** | |
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939 * \fn void SDL_RenderFill(const SDL_Rect *rect, Uint32 color) |
| 1670 | 940 * |
| 941 * \brief Fill the current rendering target with the specified color. | |
| 942 * | |
| 943 * \param rect A pointer to the destination rectangle, or NULL for the entire rendering target. | |
| 944 * \param color An ARGB color value. | |
| 945 * | |
| 946 * \return 0 on success, or -1 if there is no renderer current | |
| 947 */ | |
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948 extern DECLSPEC int SDLCALL SDL_RenderFill(const SDL_Rect * rect, |
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949 Uint32 color); |
| 0 | 950 |
| 1670 | 951 /** |
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952 * \fn int SDL_RenderCopy(SDL_TextureID textureID, const SDL_Rect *srcrect, const SDL_Rect *dstrect, Uint32 blendMode, Uint32 scaleMode) |
| 1670 | 953 * |
| 954 * \brief Copy a portion of the texture to the current rendering target. | |
| 955 * | |
| 956 * \param texture The source texture. | |
| 957 * \param srcrect A pointer to the source rectangle, or NULL for the entire texture. | |
| 958 * \param dstrect A pointer to the destination rectangle, or NULL for the entire rendering target. | |
| 959 * \param blendMode SDL_TextureBlendMode to be used if the source texture has an alpha channel. | |
| 960 * \param scaleMode SDL_TextureScaleMode to be used if the source and destination rectangles don't have the same width and height. | |
| 961 * | |
| 962 * \return 0 on success, or -1 if there is no renderer current, or the driver doesn't support the requested operation. | |
| 963 * | |
| 964 * \note You can check the video driver info to see what operations are supported. | |
| 965 */ | |
| 966 extern DECLSPEC int SDLCALL SDL_RenderCopy(SDL_TextureID textureID, | |
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967 const SDL_Rect * srcrect, |
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968 const SDL_Rect * dstrect, |
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969 int blendMode, int scaleMode); |
| 1670 | 970 |
| 971 /** | |
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972 * \fn int SDL_RenderReadPixels(const SDL_Rect *rect, void *pixels, int pitch) |
| 1670 | 973 * |
| 974 * \brief Read pixels from the current rendering target. | |
| 975 * | |
| 976 * \param rect A pointer to the rectangle to read, or NULL for the entire render target | |
| 977 * \param pixels A pointer to be filled in with the pixel data | |
| 978 * \param pitch The pitch of the pixels parameter | |
| 979 * | |
| 980 * \return 0 on success, or -1 if pixel reading is not supported. | |
| 981 * | |
| 982 * \warning This is a very slow operation, and should not be used frequently. | |
| 0 | 983 */ |
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984 extern DECLSPEC int SDLCALL SDL_RenderReadPixels(const SDL_Rect * rect, |
| 1670 | 985 void *pixels, int pitch); |
| 986 | |
| 987 /** | |
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988 * \fn int SDL_RenderWritePixels(const SDL_Rect *rect, const void *pixels, int pitch) |
| 1670 | 989 * |
| 990 * \brief Write pixels to the current rendering target. | |
| 991 * | |
| 992 * \param rect A pointer to the rectangle to write, or NULL for the entire render target | |
| 993 * \param pixels A pointer to the pixel data to write | |
| 994 * \param pitch The pitch of the pixels parameter | |
| 995 * | |
| 996 * \return 0 on success, or -1 if pixel writing is not supported. | |
| 997 * | |
| 998 * \warning This is a very slow operation, and should not be used frequently. | |
| 999 */ | |
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1000 extern DECLSPEC int SDLCALL SDL_RenderWritePixels(const SDL_Rect * rect, |
| 1670 | 1001 const void *pixels, |
| 1002 int pitch); | |
| 1003 | |
| 1004 /** | |
| 1005 * \fn void SDL_RenderPresent(void) | |
| 1006 * | |
| 1007 * \brief Update the screen with rendering performed. | |
| 1008 */ | |
| 1009 extern DECLSPEC void SDLCALL SDL_RenderPresent(void); | |
| 1010 | |
| 1011 /** | |
| 1012 * \fn void SDL_DestroyTexture(SDL_TextureID textureID); | |
| 1013 * | |
| 1014 * \brief Destroy the specified texture. | |
| 1015 * | |
| 1016 * \sa SDL_CreateTexture() | |
| 1017 * \sa SDL_CreateTextureFromSurface() | |
| 1018 */ | |
| 1019 extern DECLSPEC void SDLCALL SDL_DestroyTexture(SDL_TextureID textureID); | |
| 1020 | |
| 1021 /** | |
| 1022 * \fn void SDL_DestroyRenderer(SDL_WindowID windowID); | |
| 1023 * | |
| 1024 * \brief Destroy the rendering context for a window and free associated | |
| 1025 * textures. | |
| 1026 * | |
| 1027 * \sa SDL_CreateRenderer() | |
| 1028 */ | |
| 1029 extern DECLSPEC void SDLCALL SDL_DestroyRenderer(SDL_WindowID windowID); | |
| 0 | 1030 |
| 1031 /* | |
| 1032 * Set the gamma correction for each of the color channels. | |
| 1033 * The gamma values range (approximately) between 0.1 and 10.0 | |
| 1034 * | |
| 1035 * If this function isn't supported directly by the hardware, it will | |
| 1036 * be emulated using gamma ramps, if available. If successful, this | |
| 1037 * function returns 0, otherwise it returns -1. | |
| 1038 */ | |
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1039 extern DECLSPEC int SDLCALL SDL_SetGamma(float red, float green, float blue); |
| 0 | 1040 |
| 1041 /* | |
| 1042 * Set the gamma translation table for the red, green, and blue channels | |
| 1043 * of the video hardware. Each table is an array of 256 16-bit quantities, | |
| 1044 * representing a mapping between the input and output for that channel. | |
| 1045 * The input is the index into the array, and the output is the 16-bit | |
| 1046 * gamma value at that index, scaled to the output color precision. | |
| 1047 * | |
| 1048 * You may pass NULL for any of the channels to leave it unchanged. | |
| 1049 * If the call succeeds, it will return 0. If the display driver or | |
| 1050 * hardware does not support gamma translation, or otherwise fails, | |
| 1051 * this function will return -1. | |
| 1052 */ | |
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1053 extern DECLSPEC int SDLCALL SDL_SetGammaRamp(const Uint16 * red, |
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1054 const Uint16 * green, |
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1055 const Uint16 * blue); |
| 0 | 1056 |
| 1057 /* | |
| 1058 * Retrieve the current values of the gamma translation tables. | |
| 1059 * | |
| 1060 * You must pass in valid pointers to arrays of 256 16-bit quantities. | |
| 1061 * Any of the pointers may be NULL to ignore that channel. | |
| 1062 * If the call succeeds, it will return 0. If the display driver or | |
| 1063 * hardware does not support gamma translation, or otherwise fails, | |
| 1064 * this function will return -1. | |
| 1065 */ | |
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1066 extern DECLSPEC int SDLCALL SDL_GetGammaRamp(Uint16 * red, Uint16 * green, |
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1067 Uint16 * blue); |
| 0 | 1068 |
| 1069 /* | |
| 1070 * Sets a portion of the colormap for the given 8-bit surface. If 'surface' | |
| 1071 * is not a palettized surface, this function does nothing, returning 0. | |
| 1072 * If all of the colors were set as passed to SDL_SetColors(), it will | |
| 1073 * return 1. If not all the color entries were set exactly as given, | |
| 1074 * it will return 0, and you should look at the surface palette to | |
| 1075 * determine the actual color palette. | |
| 1076 * | |
| 1077 * When 'surface' is the surface associated with the current display, the | |
| 1078 * display colormap will be updated with the requested colors. If | |
| 1079 * SDL_HWPALETTE was set in SDL_SetVideoMode() flags, SDL_SetColors() | |
| 1080 * will always return 1, and the palette is guaranteed to be set the way | |
| 1081 * you desire, even if the window colormap has to be warped or run under | |
| 1082 * emulation. | |
| 1083 */ | |
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1084 extern DECLSPEC int SDLCALL SDL_SetColors(SDL_Surface * surface, |
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1085 SDL_Color * colors, int firstcolor, |
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1086 int ncolors); |
| 0 | 1087 |
| 1088 /* | |
| 1089 * Maps an RGB triple to an opaque pixel value for a given pixel format | |
| 1090 */ | |
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1091 extern DECLSPEC Uint32 SDLCALL SDL_MapRGB |
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1092 (SDL_PixelFormat * format, Uint8 r, Uint8 g, Uint8 b); |
| 0 | 1093 |
| 1094 /* | |
| 1095 * Maps an RGBA quadruple to a pixel value for a given pixel format | |
| 1096 */ | |
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1097 extern DECLSPEC Uint32 SDLCALL SDL_MapRGBA(SDL_PixelFormat * format, |
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1098 Uint8 r, Uint8 g, Uint8 b, |
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1099 Uint8 a); |
| 0 | 1100 |
| 1101 /* | |
| 1102 * Maps a pixel value into the RGB components for a given pixel format | |
| 1103 */ | |
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1104 extern DECLSPEC void SDLCALL SDL_GetRGB(Uint32 pixel, SDL_PixelFormat * fmt, |
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1105 Uint8 * r, Uint8 * g, Uint8 * b); |
| 0 | 1106 |
| 1107 /* | |
| 1108 * Maps a pixel value into the RGBA components for a given pixel format | |
| 1109 */ | |
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1110 extern DECLSPEC void SDLCALL SDL_GetRGBA(Uint32 pixel, SDL_PixelFormat * fmt, |
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1111 Uint8 * r, Uint8 * g, Uint8 * b, |
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1112 Uint8 * a); |
| 0 | 1113 |
| 1114 /* | |
| 1115 * Allocate and free an RGB surface (must be called after SDL_SetVideoMode) | |
| 1116 * If the depth is 4 or 8 bits, an empty palette is allocated for the surface. | |
| 1117 * If the depth is greater than 8 bits, the pixel format is set using the | |
| 1118 * flags '[RGB]mask'. | |
| 1119 * If the function runs out of memory, it will return NULL. | |
| 1120 * | |
| 1121 * The 'flags' tell what kind of surface to create. | |
| 1122 * SDL_SRCCOLORKEY indicates that the surface will be used for colorkey blits. | |
| 1670 | 1123 * SDL_SRCALPHA means that the surface will be used for alpha blits. |
| 0 | 1124 */ |
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1125 extern DECLSPEC SDL_Surface *SDLCALL SDL_CreateRGBSurface |
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1126 (Uint32 flags, int width, int height, int depth, |
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1127 Uint32 Rmask, Uint32 Gmask, Uint32 Bmask, Uint32 Amask); |
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1128 extern DECLSPEC SDL_Surface *SDLCALL SDL_CreateRGBSurfaceFrom(void *pixels, |
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1129 int width, |
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1130 int height, |
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1131 int depth, |
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1132 int pitch, |
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1133 Uint32 Rmask, |
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1134 Uint32 Gmask, |
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1135 Uint32 Bmask, |
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1136 Uint32 Amask); |
| 1670 | 1137 extern DECLSPEC SDL_Surface *SDLCALL |
| 1138 SDL_CreateRGBSurfaceFromTexture(SDL_TextureID textureID); | |
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1139 extern DECLSPEC void SDLCALL SDL_FreeSurface(SDL_Surface * surface); |
| 0 | 1140 |
| 1141 /* | |
| 1142 * SDL_LockSurface() sets up a surface for directly accessing the pixels. | |
| 1143 * Between calls to SDL_LockSurface()/SDL_UnlockSurface(), you can write | |
| 1144 * to and read from 'surface->pixels', using the pixel format stored in | |
| 1145 * 'surface->format'. Once you are done accessing the surface, you should | |
| 1146 * use SDL_UnlockSurface() to release it. | |
| 1147 * | |
| 1148 * Not all surfaces require locking. If SDL_MUSTLOCK(surface) evaluates | |
| 1149 * to 0, then you can read and write to the surface at any time, and the | |
| 1670 | 1150 * pixel format of the surface will not change. |
| 0 | 1151 * |
| 1152 * No operating system or library calls should be made between lock/unlock | |
| 1153 * pairs, as critical system locks may be held during this time. | |
| 1154 * | |
| 1155 * SDL_LockSurface() returns 0, or -1 if the surface couldn't be locked. | |
| 1156 */ | |
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1157 extern DECLSPEC int SDLCALL SDL_LockSurface(SDL_Surface * surface); |
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1158 extern DECLSPEC void SDLCALL SDL_UnlockSurface(SDL_Surface * surface); |
| 0 | 1159 |
| 1160 /* | |
| 1161 * Load a surface from a seekable SDL data source (memory or file.) | |
| 1162 * If 'freesrc' is non-zero, the source will be closed after being read. | |
| 1163 * Returns the new surface, or NULL if there was an error. | |
| 1164 * The new surface should be freed with SDL_FreeSurface(). | |
| 1165 */ | |
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1166 extern DECLSPEC SDL_Surface *SDLCALL SDL_LoadBMP_RW(SDL_RWops * src, |
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1167 int freesrc); |
| 0 | 1168 |
| 1169 /* Convenience macro -- load a surface from a file */ | |
| 1170 #define SDL_LoadBMP(file) SDL_LoadBMP_RW(SDL_RWFromFile(file, "rb"), 1) | |
| 1171 | |
| 1172 /* | |
| 1173 * Save a surface to a seekable SDL data source (memory or file.) | |
| 1174 * If 'freedst' is non-zero, the source will be closed after being written. | |
| 1175 * Returns 0 if successful or -1 if there was an error. | |
| 1176 */ | |
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1177 extern DECLSPEC int SDLCALL SDL_SaveBMP_RW |
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1178 (SDL_Surface * surface, SDL_RWops * dst, int freedst); |
| 0 | 1179 |
| 1180 /* Convenience macro -- save a surface to a file */ | |
| 1181 #define SDL_SaveBMP(surface, file) \ | |
| 1182 SDL_SaveBMP_RW(surface, SDL_RWFromFile(file, "wb"), 1) | |
| 1183 | |
| 1184 /* | |
| 1185 * Sets the color key (transparent pixel) in a blittable surface. | |
| 1186 * If 'flag' is SDL_SRCCOLORKEY (optionally OR'd with SDL_RLEACCEL), | |
| 1187 * 'key' will be the transparent pixel in the source image of a blit. | |
| 1188 * SDL_RLEACCEL requests RLE acceleration for the surface if present, | |
| 1189 * and removes RLE acceleration if absent. | |
| 1190 * If 'flag' is 0, this function clears any current color key. | |
| 1191 * This function returns 0, or -1 if there was an error. | |
| 1192 */ | |
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1193 extern DECLSPEC int SDLCALL SDL_SetColorKey |
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1194 (SDL_Surface * surface, Uint32 flag, Uint32 key); |
| 0 | 1195 |
| 1196 /* | |
| 1197 * This function sets the alpha value for the entire surface, as opposed to | |
| 1198 * using the alpha component of each pixel. This value measures the range | |
| 1199 * of transparency of the surface, 0 being completely transparent to 255 | |
| 1200 * being completely opaque. An 'alpha' value of 255 causes blits to be | |
| 1201 * opaque, the source pixels copied to the destination (the default). Note | |
| 1202 * that per-surface alpha can be combined with colorkey transparency. | |
| 1203 * | |
| 1204 * If 'flag' is 0, alpha blending is disabled for the surface. | |
| 1205 * If 'flag' is SDL_SRCALPHA, alpha blending is enabled for the surface. | |
| 1206 * OR:ing the flag with SDL_RLEACCEL requests RLE acceleration for the | |
| 1207 * surface; if SDL_RLEACCEL is not specified, the RLE accel will be removed. | |
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1208 * |
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1209 * The 'alpha' parameter is ignored for surfaces that have an alpha channel. |
| 0 | 1210 */ |
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1211 extern DECLSPEC int SDLCALL SDL_SetAlpha(SDL_Surface * surface, Uint32 flag, |
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1212 Uint8 alpha); |
| 0 | 1213 |
| 1214 /* | |
| 1215 * Sets the clipping rectangle for the destination surface in a blit. | |
| 1216 * | |
| 1217 * If the clip rectangle is NULL, clipping will be disabled. | |
| 1218 * If the clip rectangle doesn't intersect the surface, the function will | |
| 1219 * return SDL_FALSE and blits will be completely clipped. Otherwise the | |
| 1220 * function returns SDL_TRUE and blits to the surface will be clipped to | |
| 1221 * the intersection of the surface area and the clipping rectangle. | |
| 1222 * | |
| 1223 * Note that blits are automatically clipped to the edges of the source | |
| 1224 * and destination surfaces. | |
| 1225 */ | |
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1226 extern DECLSPEC SDL_bool SDLCALL SDL_SetClipRect(SDL_Surface * surface, |
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1227 const SDL_Rect * rect); |
| 0 | 1228 |
| 1229 /* | |
| 1230 * Gets the clipping rectangle for the destination surface in a blit. | |
| 1231 * 'rect' must be a pointer to a valid rectangle which will be filled | |
| 1232 * with the correct values. | |
| 1233 */ | |
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1234 extern DECLSPEC void SDLCALL SDL_GetClipRect(SDL_Surface * surface, |
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1235 SDL_Rect * rect); |
| 0 | 1236 |
| 1237 /* | |
| 1238 * Creates a new surface of the specified format, and then copies and maps | |
| 1239 * the given surface to it so the blit of the converted surface will be as | |
| 1240 * fast as possible. If this function fails, it returns NULL. | |
| 1241 * | |
| 1242 * The 'flags' parameter is passed to SDL_CreateRGBSurface() and has those | |
| 1243 * semantics. You can also pass SDL_RLEACCEL in the flags parameter and | |
| 1244 * SDL will try to RLE accelerate colorkey and alpha blits in the resulting | |
| 1245 * surface. | |
| 1246 * | |
| 1247 * This function is used internally by SDL_DisplayFormat(). | |
| 1248 */ | |
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1249 extern DECLSPEC SDL_Surface *SDLCALL SDL_ConvertSurface |
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1250 (SDL_Surface * src, SDL_PixelFormat * fmt, Uint32 flags); |
| 0 | 1251 |
| 1252 /* | |
| 1670 | 1253 * This function performs a fast fill of the given rectangle with 'color' |
| 1254 * The given rectangle is clipped to the destination surface clip area | |
| 1255 * and the final fill rectangle is saved in the passed in pointer. | |
| 1256 * If 'dstrect' is NULL, the whole surface will be filled with 'color' | |
| 1257 * The color should be a pixel of the format used by the surface, and | |
| 1258 * can be generated by the SDL_MapRGB() function. | |
| 1259 * This function returns 0 on success, or -1 on error. | |
| 1260 */ | |
| 1261 extern DECLSPEC int SDLCALL SDL_FillRect | |
| 1262 (SDL_Surface * dst, SDL_Rect * dstrect, Uint32 color); | |
| 1263 | |
| 1264 /* | |
| 0 | 1265 * This performs a fast blit from the source surface to the destination |
| 1266 * surface. It assumes that the source and destination rectangles are | |
| 1267 * the same size. If either 'srcrect' or 'dstrect' are NULL, the entire | |
| 1268 * surface (src or dst) is copied. The final blit rectangles are saved | |
| 1269 * in 'srcrect' and 'dstrect' after all clipping is performed. | |
| 1270 * If the blit is successful, it returns 0, otherwise it returns -1. | |
| 1271 * | |
| 1272 * The blit function should not be called on a locked surface. | |
| 1273 * | |
| 1274 * The blit semantics for surfaces with and without alpha and colorkey | |
| 1275 * are defined as follows: | |
| 1276 * | |
| 1277 * RGBA->RGB: | |
| 1278 * SDL_SRCALPHA set: | |
| 1279 * alpha-blend (using alpha-channel). | |
| 1280 * SDL_SRCCOLORKEY ignored. | |
| 1281 * SDL_SRCALPHA not set: | |
| 1282 * copy RGB. | |
| 1283 * if SDL_SRCCOLORKEY set, only copy the pixels matching the | |
| 1284 * RGB values of the source colour key, ignoring alpha in the | |
| 1285 * comparison. | |
| 1286 * | |
| 1287 * RGB->RGBA: | |
| 1288 * SDL_SRCALPHA set: | |
| 1289 * alpha-blend (using the source per-surface alpha value); | |
| 1290 * set destination alpha to opaque. | |
| 1291 * SDL_SRCALPHA not set: | |
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1292 * copy RGB, set destination alpha to source per-surface alpha value. |
| 0 | 1293 * both: |
| 1294 * if SDL_SRCCOLORKEY set, only copy the pixels matching the | |
| 1295 * source colour key. | |
| 1296 * | |
| 1297 * RGBA->RGBA: | |
| 1298 * SDL_SRCALPHA set: | |
| 1299 * alpha-blend (using the source alpha channel) the RGB values; | |
| 1300 * leave destination alpha untouched. [Note: is this correct?] | |
| 1301 * SDL_SRCCOLORKEY ignored. | |
| 1302 * SDL_SRCALPHA not set: | |
| 1303 * copy all of RGBA to the destination. | |
| 1304 * if SDL_SRCCOLORKEY set, only copy the pixels matching the | |
| 1305 * RGB values of the source colour key, ignoring alpha in the | |
| 1306 * comparison. | |
| 1307 * | |
| 1308 * RGB->RGB: | |
| 1309 * SDL_SRCALPHA set: | |
| 1310 * alpha-blend (using the source per-surface alpha value). | |
| 1311 * SDL_SRCALPHA not set: | |
| 1312 * copy RGB. | |
| 1313 * both: | |
| 1314 * if SDL_SRCCOLORKEY set, only copy the pixels matching the | |
| 1315 * source colour key. | |
| 1316 * | |
| 1317 * If either of the surfaces were in video memory, and the blit returns -2, | |
| 1318 * the video memory was lost, so it should be reloaded with artwork and | |
| 1319 * re-blitted: | |
| 1320 while ( SDL_BlitSurface(image, imgrect, screen, dstrect) == -2 ) { | |
| 1321 while ( SDL_LockSurface(image) < 0 ) | |
| 1322 Sleep(10); | |
| 1323 -- Write image pixels to image->pixels -- | |
| 1324 SDL_UnlockSurface(image); | |
| 1325 } | |
| 1326 * This happens under DirectX 5.0 when the system switches away from your | |
| 1327 * fullscreen application. The lock will also fail until you have access | |
| 1328 * to the video memory again. | |
| 1329 */ | |
| 1330 /* You should call SDL_BlitSurface() unless you know exactly how SDL | |
| 1331 blitting works internally and how to use the other blit functions. | |
| 1332 */ | |
| 1333 #define SDL_BlitSurface SDL_UpperBlit | |
| 1334 | |
| 1335 /* This is the public blit function, SDL_BlitSurface(), and it performs | |
| 1336 rectangle validation and clipping before passing it to SDL_LowerBlit() | |
| 1337 */ | |
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1338 extern DECLSPEC int SDLCALL SDL_UpperBlit |
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1339 (SDL_Surface * src, SDL_Rect * srcrect, |
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1340 SDL_Surface * dst, SDL_Rect * dstrect); |
| 0 | 1341 /* This is a semi-private blit function and it performs low-level surface |
| 1342 blitting only. | |
| 1343 */ | |
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1344 extern DECLSPEC int SDLCALL SDL_LowerBlit |
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1345 (SDL_Surface * src, SDL_Rect * srcrect, |
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1346 SDL_Surface * dst, SDL_Rect * dstrect); |
| 0 | 1347 |
| 1670 | 1348 /** |
| 1349 * \fn int SDL_SoftStretch(SDL_Surface * src, SDL_Rect * srcrect, SDL_Surface * dst, SDL_Rect * dstrect) | |
| 0 | 1350 * |
| 1670 | 1351 * \brief Perform a fast, low quality, stretch blit between two surfaces of the same pixel format. |
| 1352 * \note This function uses a static buffer, and is not thread-safe. | |
| 0 | 1353 */ |
| 1670 | 1354 extern DECLSPEC int SDLCALL SDL_SoftStretch(SDL_Surface * src, |
| 1355 SDL_Rect * srcrect, | |
| 1356 SDL_Surface * dst, | |
| 1357 SDL_Rect * dstrect); | |
| 0 | 1358 |
| 1359 /* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */ | |
| 1360 /* OpenGL support functions. */ | |
| 1361 /* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */ | |
| 1362 | |
| 1363 /* | |
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1364 * Dynamically load an OpenGL library, or the default one if path is NULL |
| 0 | 1365 * |
| 1366 * If you do this, you need to retrieve all of the GL functions used in | |
| 1367 * your program from the dynamic library using SDL_GL_GetProcAddress(). | |
| 1368 */ | |
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1369 extern DECLSPEC int SDLCALL SDL_GL_LoadLibrary(const char *path); |
| 0 | 1370 |
| 1371 /* | |
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1372 * Get the address of a GL function |
| 0 | 1373 */ |
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1374 extern DECLSPEC void *SDLCALL SDL_GL_GetProcAddress(const char *proc); |
| 0 | 1375 |
| 1376 /* | |
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1377 * Set an attribute of the OpenGL subsystem before window creation. |
| 0 | 1378 */ |
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1379 extern DECLSPEC int SDLCALL SDL_GL_SetAttribute(SDL_GLattr attr, int value); |
| 0 | 1380 |
| 1381 /* | |
| 1382 * Get an attribute of the OpenGL subsystem from the windowing | |
| 1383 * interface, such as glX. This is of course different from getting | |
| 1384 * the values from SDL's internal OpenGL subsystem, which only | |
| 1385 * stores the values you request before initialization. | |
| 1386 * | |
| 1387 * Developers should track the values they pass into SDL_GL_SetAttribute | |
| 1388 * themselves if they want to retrieve these values. | |
| 1389 */ | |
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1390 extern DECLSPEC int SDLCALL SDL_GL_GetAttribute(SDL_GLattr attr, int *value); |
| 0 | 1391 |
| 1392 /* | |
| 1393 * Swap the OpenGL buffers, if double-buffering is supported. | |
| 1394 */ | |
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1395 extern DECLSPEC void SDLCALL SDL_GL_SwapBuffers(void); |
| 0 | 1396 |
| 1397 /* Ends C function definitions when using C++ */ | |
| 1398 #ifdef __cplusplus | |
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1399 /* *INDENT-OFF* */ |
| 0 | 1400 } |
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1401 /* *INDENT-ON* */ |
| 0 | 1402 #endif |
| 1403 #include "close_code.h" | |
| 1404 | |
| 1405 #endif /* _SDL_video_h */ | |
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1406 |
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1407 /* vi: set ts=4 sw=4 expandtab: */ |