Mercurial > sdl-ios-xcode

annotate src/video/gapi/SDL_gapivideo.h @ 4288:4ab46e81d08e SDL-1.2

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Default value for SGI swap control GL attribute should be -1. Explicitly try to set it if you want a different value. Different glX implementations appear to have different defaults for this, and you can't query them for the current value.
author Ryan C. Gordon <icculus@icculus.org>
date Sat, 10 Oct 2009 05:17:47 +0000
parents 9ea4413f0a9e
children
rev   line source
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1 /*
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2 SDL - Simple DirectMedia Layer
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3 Copyright (C) 1997-2009 Sam Lantinga
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4
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5 This library is free software; you can redistribute it and/or
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6 modify it under the terms of the GNU Lesser General Public
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7 License as published by the Free Software Foundation; either
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8 version 2.1 of the License, or (at your option) any later version.
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9
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10 This library is distributed in the hope that it will be useful,
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11 but WITHOUT ANY WARRANTY; without even the implied warranty of
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12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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13 Lesser General Public License for more details.
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14
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15 You should have received a copy of the GNU Lesser General Public
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16 License along with this library; if not, write to the Free Software
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17 Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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18
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19 Sam Lantinga
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20 slouken@libsdl.org
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21 */
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22 #include "SDL_config.h"
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23
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24 #ifndef _SDL_gapivideo_h
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25 #define _SDL_gapivideo_h
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26
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27 #include "SDL_mouse.h"
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28 #include "SDL_mutex.h"
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29 #include "../SDL_sysvideo.h"
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30 #include "../windib/SDL_gapidibvideo.h"
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31
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32 /* From gx.h, since it's not really C compliant */
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33
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34 struct GXDisplayProperties {
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35 DWORD cxWidth;
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36 DWORD cyHeight; // notice lack of 'th' in the word height.
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37 long cbxPitch; // number of bytes to move right one x pixel - can be negative.
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38 long cbyPitch; // number of bytes to move down one y pixel - can be negative.
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39 long cBPP; // # of bits in each pixel
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40 DWORD ffFormat; // format flags.
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41 };
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42
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43 struct GXKeyList {
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44 short vkUp; // key for up
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45 POINT ptUp; // x,y position of key/button. Not on screen but in screen coordinates.
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46 short vkDown;
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47 POINT ptDown;
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48 short vkLeft;
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49 POINT ptLeft;
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50 short vkRight;
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51 POINT ptRight;
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52 short vkA;
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53 POINT ptA;
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54 short vkB;
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55 POINT ptB;
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56 short vkC;
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57 POINT ptC;
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58 short vkStart;
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59 POINT ptStart;
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60 };
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61
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62 typedef int (*PFNGXOpenDisplay)(HWND hWnd, DWORD dwFlags);
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63 typedef int (*PFNGXCloseDisplay)();
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64 typedef void* (*PFNGXBeginDraw)();
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65 typedef int (*PFNGXEndDraw)();
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66 typedef int (*PFNGXOpenInput)();
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67 typedef int (*PFNGXCloseInput)();
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68 typedef struct GXDisplayProperties (*PFNGXGetDisplayProperties)();
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69 typedef struct GXKeyList (*PFNGXGetDefaultKeys)(int iOptions);
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70 typedef int (*PFNGXSuspend)();
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71 typedef int (*PFNGXResume)();
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72 typedef int (*PFNGXSetViewport)( DWORD dwTop, DWORD dwHeight, DWORD dwReserved1, DWORD dwReserved2 );
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73 typedef BOOL (*PFNGXIsDisplayDRAMBuffer)();
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74
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75 struct GapiFunc
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76 {
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77 PFNGXOpenDisplay GXOpenDisplay;
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78 PFNGXCloseDisplay GXCloseDisplay;
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79 PFNGXBeginDraw GXBeginDraw;
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80 PFNGXEndDraw GXEndDraw;
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81 PFNGXOpenInput GXOpenInput;
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82 PFNGXCloseInput GXCloseInput;
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83 PFNGXGetDisplayProperties GXGetDisplayProperties;
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84 PFNGXGetDefaultKeys GXGetDefaultKeys;
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85 PFNGXSuspend GXSuspend;
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86 PFNGXResume GXResume;
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87 PFNGXSetViewport GXSetViewport;
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88 PFNGXIsDisplayDRAMBuffer GXIsDisplayDRAMBuffer;
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89 };
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90
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91 #define kfLandscape 0x8 // Screen is rotated 270 degrees
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92 #define kfPalette 0x10 // Pixel values are indexes into a palette
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93 #define kfDirect 0x20 // Pixel values contain actual level information
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94 #define kfDirect555 0x40 // 5 bits each for red, green and blue values in a pixel.
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95 #define kfDirect565 0x80 // 5 red bits, 6 green bits and 5 blue bits per pixel
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96 #define kfDirect888 0x100 // 8 bits each for red, green and blue values in a pixel.
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97 #define kfDirect444 0x200 // 4 red, 4 green, 4 blue
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98 #define kfDirectInverted 0x400
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99
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100 #define GX_FULLSCREEN 0x01 // for OpenDisplay()
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101 #define GX_NORMALKEYS 0x02
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102 #define GX_LANDSCAPEKEYS 0x03
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103
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104
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105 /* GAPI video mode */
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106 typedef enum {
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107 GAPI_NONE = 0,
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108 GAPI_DIRECT_565,
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109 GAPI_DIRECT_555,
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110 GAPI_MONO,
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111 GAPI_PALETTE
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112 } GAPIVideoMode;
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113
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114 typedef unsigned short PIXEL;
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115
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116 /* Private display data
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117 begin with DIB private structure to allow DIB events code sharing
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118 */
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119 struct GapiInfo {
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120 /* Rotation which has to be applied to the key (arrow keys) and mouse events measured in quarters of a circle
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121 * counter clockwise */
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122 int coordinateTransform;
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123 char hiresFix; /* using hires mode without defining hires resource */
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124 int invert; //TODO this is only written but never read, so it should be removed
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125
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126 #define NUM_MODELISTS 4 /* 8, 16, 24, and 32 bits-per-pixel */
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127 int SDL_nummodes[NUM_MODELISTS];
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128 SDL_Rect **SDL_modelist[NUM_MODELISTS];
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129
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130
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131 // The orientation of the video mode user wants to get
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132 // Probably restricted to UP and RIGHT
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133 SDL_ScreenOrientation userOrientation;
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134 SDL_ScreenOrientation systemOrientation;
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135 // --------------
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136 int useGXOpenDisplay; /* use GXOpenDispplay */
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137 int alreadyGXOpened;
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138 int w, h;
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139 // The orientation of GAPI framebuffer.
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140 // Never changes on the same device.
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141 SDL_ScreenOrientation gapiOrientation;
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142
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143 void *buffer; // may be 8, 16, 24, 32 bpp
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144 PIXEL *videoMem;
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145 BOOL needUpdate;
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146 struct GXKeyList keyList;
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147 struct GapiFunc gxFunc;
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148 struct GXDisplayProperties gxProperties;
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149 GAPIVideoMode videoMode;
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150 int colorscale;
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151 int dstLineStep; // in bytes
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152 int dstPixelStep; // in bytes
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153 int startOffset; // in bytes
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154 int useVga;
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155 int suspended; // do not pu anything into video memory
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156 };
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158
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160 #endif /* _SDL_gapivideo_h */