annotate WhatsNew @ 1584:b786d9c15e42

Fixed bug #61 Date: Mon, 24 Feb 2003 13:35:11 +0800 From: "Leonidas" Subject: [SDL] Re: Trigger mouse wheel event -- not in X-environment I have looked into the codes for the IMPS/2 mouse wheel mode of fbcon driver. But I found something weird. Here's the original codes to set a mouse device into IMPS/2 mode in libSDL. In the file src/video/fbcon/SDL_fbevents.c In function static int set_imps2_mode(int fd) ... Uint8 set_imps2[] = {0xf3, 200, 0xf3, 100, 0xf3, 80}; Uint8 reset = 0xff; fd_set fdset; struct timeval tv; int retval = 0; // Set mouse device fd into IMPS/2 mode if ( write(fd, &set_imps2, sizeof(set_imps2)) == sizeof(set_imps2) ) { // ??? then RESET it..??? if (write(fd, &reset, sizeof (reset)) == sizeof (reset) ) { retval = 1; } } ........... Since it sets IMPS/2 mode then reset it, so you will never get a mouse into IMPS/2 mode to use its wheel. What I did to make the wheel usable is remove the RESET codes. .... if ( write(fd, &set_imps2, sizeof(set_imps2)) == sizeof(set_imps2) ) { /* if (write(fd, &reset, sizeof (reset)) == sizeof (reset) ) { } */ retval = 1; } .... And in FB_OpenMouse(_THIS) Make the device /dev/psaux to be setted into imps2 mode such that it can be detected its a imps/2 mouse or not. (my mouse device is on ps2, but the codes only set /dev/input/mice device originally) Then I have done, I can use the mouse wheel when SDL uses frame buff driver. I dont exactly know I did right or wrong, I just change it for my usuage. Correct me please, if I did something wrong. Best regards, Li Tsung Lin IAP Product Dept. Engineer EeRise Corp. (Image Processing System, Computer Vision System) Hsin Tien, Taipei Hsien, Taiwan, R.O.C.
author Sam Lantinga <slouken@libsdl.org>
date Wed, 22 Mar 2006 07:22:40 +0000
parents 8d9bb0cf2c2a
children 96c2f89cc7e1 3b2a92126f4d
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1
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2 This is a list of API changes in SDL's version history.
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3
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4 Version 1.0:
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5
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6 1.2.10:
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7 Added current_w and current_h to the SDL_VideoInfo structure,
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8 which is set to the desktop resolution during video intialization,
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9 and then set to the current resolution when a video mode is set.
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11 SDL_SetVideoMode() now accepts 0 for width or height and will use
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12 the current video mode (or the desktop mode if no mode has been set.)
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13
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14 Added SDL_GetKeyRepeat()
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15
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16 Added SDL_config.h, with defaults for various build environments.
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17
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22dbf364c017 Added SDL_HasMMX(), SDL_Has3DNow(), SDL_HasSSE() in SDL_cpuinfo.h
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18 1.2.7:
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19 Added CPU feature detection functions to SDL_cpuinfo.h:
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20 SDL_HasRDTSC(), SDL_HasMMX(), SDL_Has3DNow(), SDL_HasSSE(),
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21 SDL_HasAltiVec()
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22 Added function to create RWops from const memory: SDL_RWFromConstMem()
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23
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12a21d82a060 Exposed SDL_LoadObject(), SDL_LoadFunction(), and SDL_UnloadObject() APIs
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24 1.2.6:
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25 Added SDL_LoadObject(), SDL_LoadFunction(), and SDL_UnloadObject()
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26
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864e2d2a9a55 Merged in Ryan's multisample code for MacOS, and changed the constants to match.
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27 Added SDL_GL_MULTISAMPLEBUFFERS and SDL_GL_MULTISAMPLESAMPLES for FSAA
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9c42ee1b7d77 Date: Thu, 24 Apr 2003 15:13:47 -0400
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28
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29 1.2.5:
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30 Added SDL_BUTTON_WHEELUP (4) and SDL_BUTTON_WHEELDOWN (5)
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31
24edec3cafe4 Added SDL_BUTTON_WHEELUP (4) and SDL_BUTTON_WHEELDOWN (5)
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32 Added SDL_GL_STEREO for stereoscopic OpenGL contexts
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33
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34 1.2.0:
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35 Added SDL_VIDEOEXPOSE event to signal that the screen needs to
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36 be redrawn. This is currently only delivered to OpenGL windows
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37 on X11, though it may be delivered in the future when the video
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38 memory is lost under DirectX.
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39
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40 1.1.8:
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41 You can pass SDL_NOFRAME to SDL_VideoMode() to create a window
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42 that has no title bar or frame decoration. Fullscreen video
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43 modes automatically have this flag set.
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44
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45 Added a function to query the clipping rectangle for a surface:
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46 void SDL_GetClipRect(SDL_Surface *surface, SDL_Rect *rect)
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47
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48 Added a function to query the current event filter:
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49 SDL_EventFilter SDL_GetEventFilter(void)
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50
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51 If you pass -1 to SDL_ShowCursor(), it won't change the current
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52 cursor visibility state, but will still return it.
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53
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54 SDL_LockSurface() and SDL_UnlockSurface() are recursive, meaning
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55 you can nest them as deep as you want, as long as each lock call
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56 has a matching unlock call. The surface remains locked until the
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57 last matching unlock call.
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58
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59 Note that you may not blit to or from a locked surface.
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60
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61 1.1.7:
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62 The SDL_SetGammaRamp() and SDL_GetGammaRamp() functions now take
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63 arrays of Uint16 values instead of Uint8 values. For the most part,
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64 you can just take your old values and shift them up 8 bits to get
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65 new correct values for your gamma ramps.
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66
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67 You can pass SDL_RLEACCEL in flags passed to SDL_ConvertSurface()
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68 and SDL will try to RLE accelerate colorkey and alpha blits in the
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69 resulting surface.
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70
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71 1.1.6:
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72 Added a function to return the thread ID of a specific thread:
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73 Uint32 SDL_GetThreadID(SDL_Thread *thread)
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74 If 'thread' is NULL, this function returns the id for this thread.
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75
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76 1.1.5:
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77 The YUV overlay structure has been changed to use an array of
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78 pitches and pixels representing the planes of a YUV image, to
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79 better enable hardware acceleration. The YV12 and IYUV formats
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80 each have three planes, corresponding to the Y, U, and V portions
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81 of the image, while packed pixel YUV formats just have one plane.
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82
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83 For palettized mode (8bpp), the screen colormap is now split in
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84 a physical and a logical palette. The physical palette determines
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85 what colours the screen pixels will get when displayed, and the
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86 logical palette controls the mapping from blits to/from the screen.
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87 A new function, SDL_SetPalette() has been added to change
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88 logical and physical palettes separately. SDL_SetColors() works
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89 just as before, and is equivalent to calling SDL_SetPalette() with
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90 a flag argument of (SDL_LOGPAL|SDL_PHYSPAL).
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91
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92 SDL_BlitSurface() no longer modifies the source rectangle, only the
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93 destination rectangle. The width/height members of the destination
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94 rectangle are ignored, only the position is used.
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95
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96 The old source clipping function SDL_SetClipping() has been replaced
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97 with a more useful function to set the destination clipping rectangle:
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98 SDL_bool SDL_SetClipRect(SDL_Surface *surface, SDL_Rect *rect)
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99
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100 Added a function to see what subsystems have been initialized:
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101 Uint32 SDL_WasInit(Uint32 flags)
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102
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103 The Big Alpha Flip: SDL now treats alpha as opacity like everybody
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104 else, and not as transparency:
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105
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106 A new cpp symbol: SDL_ALPHA_OPAQUE is defined as 255
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107 A new cpp symbol: SDL_ALPHA_TRANSPARENT is defined as 0
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108 Values between 0 and 255 vary from fully transparent to fully opaque.
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109
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110 New functions:
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111 SDL_DisplayFormatAlpha()
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112 Returns a surface converted to a format with alpha-channel
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113 that can be blit efficiently to the screen. (In other words,
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114 like SDL_DisplayFormat() but the resulting surface has
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115 an alpha channel.) This is useful for surfaces with alpha.
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116 SDL_MapRGBA()
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117 Works as SDL_MapRGB() but takes an additional alpha parameter.
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118 SDL_GetRGBA()
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119 Works as SDL_GetRGB() but also returns the alpha value
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120 (SDL_ALPHA_OPAQUE for formats without an alpha channel)
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121
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122 Both SDL_GetRGB() and SDL_GetRGBA() now always return values in
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123 the [0..255] interval. Previously, SDL_GetRGB() would return
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124 (0xf8, 0xfc, 0xf8) for a completely white pixel in RGB565 format.
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125 (N.B.: This is broken for bit fields < 3 bits.)
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126
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127 SDL_MapRGB() returns pixels in which the alpha channel is set opaque.
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128
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129 SDL_SetAlpha() can now be used for both setting the per-surface
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130 alpha, using the new way of thinking of alpha, and also to enable
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131 and disable per-pixel alpha blending for surfaces with an alpha
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132 channel:
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133 To disable alpha blending:
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134 SDL_SetAlpha(surface, 0, 0);
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135 To re-enable alpha blending:
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136 SDL_SetAlpha(surface, SDL_SRCALPHA, 0);
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137 Surfaces with an alpha channel have blending enabled by default.
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138
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139 SDL_SetAlpha() now accepts SDL_RLEACCEL as a flag, which requests
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140 RLE acceleration of blits, just as like with SDL_SetColorKey().
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141 This flag can be set for both surfaces with an alpha channel
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142 and surfaces with an alpha value set by SDL_SetAlpha().
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143 As always, RLE surfaces must be locked before pixel access is
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144 allowed, and unlocked before any other SDL operations are done
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145 on it.
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146
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147 The blit semantics for surfaces with and without alpha and colorkey
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148 have now been defined:
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149
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150 RGBA->RGB:
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151 SDL_SRCALPHA set:
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152 alpha-blend (using alpha-channel).
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153 SDL_SRCCOLORKEY ignored.
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154 SDL_SRCALPHA not set:
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155 copy RGB.
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156 if SDL_SRCCOLORKEY set, only copy the pixels matching the
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157 RGB values of the source colour key, ignoring alpha in the
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158 comparison.
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159
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160 RGB->RGBA:
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161 SDL_SRCALPHA set:
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162 alpha-blend (using the source per-surface alpha value);
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163 set destination alpha to opaque.
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164 SDL_SRCALPHA not set:
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165 copy RGB, set destination alpha to opaque.
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166 both:
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167 if SDL_SRCCOLORKEY set, only copy the pixels matching the
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168 source colour key.
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169
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170 RGBA->RGBA:
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171 SDL_SRCALPHA set:
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172 alpha-blend (using the source alpha channel) the RGB values;
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173 leave destination alpha untouched. [Note: is this correct?]
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174 SDL_SRCCOLORKEY ignored.
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175 SDL_SRCALPHA not set:
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176 copy all of RGBA to the destination.
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177 if SDL_SRCCOLORKEY set, only copy the pixels matching the
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178 RGB values of the source colour key, ignoring alpha in the
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179 comparison.
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180
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181 RGB->RGB:
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182 SDL_SRCALPHA set:
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183 alpha-blend (using the source per-surface alpha value).
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184 SDL_SRCALPHA not set:
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185 copy RGB.
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186 both:
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187 if SDL_SRCCOLORKEY set, only copy the pixels matching the
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188 source colour key.
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189
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190 As a special case, blits from surfaces with per-surface alpha
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191 value of 128 (50% transparency) are optimised and much faster
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192 than other alpha values. This does not apply to surfaces with
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193 alpha channels (per-pixel alpha).
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194
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195 New functions for manipulating the gamma of the display have
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196 been added:
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197 int SDL_SetGamma(float red, float green, float blue);
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198 int SDL_SetGammaRamp(Uint8 *red, Uint8 *green, Uint8 *blue);
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199 int SDL_GetGammaRamp(Uint8 *red, Uint8 *green, Uint8 *blue);
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200 Gamma ramps are tables with 256 entries which map the screen color
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201 components into actually displayed colors. For an example of
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202 implementing gamma correction and gamma fades, see test/testgamma.c
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203 Gamma control is not supported on all hardware.
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204
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205 1.1.4:
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206 The size of the SDL_CDtrack structure changed from 8 to 12 bytes
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207 as the size of the length member was extended to 32 bits.
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208
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209 You can now use SDL for 2D blitting with a GL mode by passing the
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210 SDL_OPENGLBLIT flag to SDL_SetVideoMode(). You can specify 16 or
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211 32 bpp, and the data in the framebuffer is put into the GL scene
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212 when you call SDL_UpdateRects(), and the scene will be visible
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213 when you call SDL_GL_SwapBuffers().
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214
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215 Run the "testgl" test program with the -logo command line option
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216 to see an example of this blending of 2D and 3D in SDL.
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217
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218 1.1.3:
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219 Added SDL_FreeRW() to the API, to complement SDL_AllocRW()
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220
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221 Added resizable window support - just add SDL_RESIZABLE to the
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222 SDL_SetVideoMode() flags, and then wait for SDL_VIDEORESIZE events.
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223 See SDL_events.h for details on the new SDL_ResizeEvent structure.
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224
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225 Added condition variable support, based on mutexes and semaphores.
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226 SDL_CreateCond()
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227 SDL_DestroyCond()
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228 SDL_CondSignal()
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229 SDL_CondBroadcast()
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230 SDL_CondWait()
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231 SDL_CondTimedWait()
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232 The new function prototypes are in SDL_mutex.h
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233
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234 Added counting semaphore support, based on the mutex primitive.
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235 SDL_CreateSemaphore()
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236 SDL_DestroySemaphore()
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237 SDL_SemWait()
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238 SDL_SemTryWait()
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239 SDL_SemWaitTimeout()
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240 SDL_SemPost()
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241 SDL_SemValue()
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242 The new function prototypes are in SDL_mutex.h
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243
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244 Added support for asynchronous blitting. To take advantage of this,
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245 you must set the SDL_ASYNCBLIT flag when setting the video mode and
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246 creating surfaces that you want accelerated in this way. You must
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247 lock surfaces that have this flag set, and the lock will block until
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248 any queued blits have completed.
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249
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250 Added YUV video overlay support.
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251 The supported YUV formats are: YV12, IYUV, YUY2, UYVY, and YVYU.
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252 This function creates an overlay surface:
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253 SDL_CreateYUVOverlay()
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254 You must lock and unlock the overlay to get access to the data:
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255 SDL_LockYUVOverlay() SDL_UnlockYUVOverlay()
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256 You can then display the overlay:
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257 SDL_DisplayYUVOverlay()
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258 You must free the overlay when you are done using it:
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259 SDL_FreeYUVOverlay()
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260 See SDL_video.h for the full function prototypes.
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261
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262 The joystick hat position constants have been changed:
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263 Old constant New constant
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264 ------------ ------------
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265 0 SDL_HAT_CENTERED
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266 1 SDL_HAT_UP
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267 2 SDL_HAT_RIGHTUP
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268 3 SDL_HAT_RIGHT
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269 4 SDL_HAT_RIGHTDOWN
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270 5 SDL_HAT_DOWN
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271 6 SDL_HAT_LEFTDOWN
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272 7 SDL_HAT_LEFT
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273 8 SDL_HAT_LEFTUP
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274 The new constants are bitmasks, so you can check for the
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275 individual axes like this:
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276 if ( hat_position & SDL_HAT_UP ) {
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277 }
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278 and you'll catch left-up, up, and right-up.
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279
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280 1.1.2:
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281 Added multiple timer support:
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282 SDL_AddTimer() and SDL_RemoveTimer()
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283
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284 SDL_WM_SetIcon() now respects the icon colorkey if mask is NULL.
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285
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286 1.1.0:
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287 Added initial OpenGL support.
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288 First set GL attributes (such as RGB depth, alpha depth, etc.)
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289 SDL_GL_SetAttribute()
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290 Then call SDL_SetVideoMode() with the SDL_OPENGL flag.
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291 Perform all of your normal GL drawing.
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292 Finally swap the buffers with the new SDL function:
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293 SDL_GL_SwapBuffers()
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294 See the new 'testgl' test program for an example of using GL with SDL.
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295
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296 You can load GL extension functions by using the function:
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297 SDL_GL_LoadProcAddress()
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298
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299 Added functions to initialize and cleanup specific SDL subsystems:
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300 SDL_InitSubSystem() and SDL_QuitSubSystem()
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301
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302 Added user-defined event type:
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303 typedef struct {
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304 Uint8 type;
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305 int code;
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306 void *data1;
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307 void *data2;
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308 } SDL_UserEvent;
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309 This structure is in the "user" member of an SDL_Event.
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310
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311 Added a function to push events into the event queue:
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312 SDL_PushEvent()
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313
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314 Example of using the new SDL user-defined events:
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315 {
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316 SDL_Event event;
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317
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318 event.type = SDL_USEREVENT;
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319 event.user.code = my_event_code;
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320 event.user.data1 = significant_data;
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321 event.user.data2 = 0;
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322 SDL_PushEvent(&event);
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323 }
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324
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325 Added a function to get mouse deltas since last query:
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326 SDL_GetRelativeMouseState()
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327
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328 Added a boolean datatype to SDL_types.h:
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329 SDL_bool = { SDL_TRUE, SDL_FALSE }
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330
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331 Added a function to get the current audio status:
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332 SDL_GetAudioState();
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333 It returns one of:
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334 SDL_AUDIO_STOPPED,
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335 SDL_AUDIO_PLAYING,
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336 SDL_AUDIO_PAUSED
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337
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338 Added an AAlib driver (ASCII Art) - by Stephane Peter.
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339
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340 1.0.6:
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341 The input grab state is reset after each call to SDL_SetVideoMode().
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342 The input is grabbed by default in fullscreen mode, and ungrabbed in
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343 windowed mode. If you want to set input grab to a particular value,
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344 you should set it after each call to SDL_SetVideoMode().
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345
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346 1.0.5:
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347 Exposed SDL_AudioInit(), SDL_VideoInit()
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348 Added SDL_AudioDriverName() and SDL_VideoDriverName()
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349
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350 Added new window manager function:
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351 SDL_WM_ToggleFullScreen()
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352 This is currently implemented only on Linux
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353
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354 The ALT-ENTER code has been removed - it's not appropriate for a
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355 lib to bind keys when they aren't even emergency escape sequences.
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356
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357 ALT-ENTER functionality can be implemented with the following code:
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358
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359 int Handle_AltEnter(const SDL_Event *event)
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360 {
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361 if ( event->type == SDL_KEYDOWN ) {
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362 if ( (event->key.keysym.sym == SDLK_RETURN) &&
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363 (event->key.keysym.mod & KMOD_ALT) ) {
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364 SDL_WM_ToggleFullScreen(SDL_GetVideoSurface());
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365 return(0);
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366 }
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367 }
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368 return(1);
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369 }
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370 SDL_SetEventFilter(Handle_AltEnter);
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371
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372 1.0.3:
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373 Under X11, if you grab the input and hide the mouse cursor,
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374 the mouse will go into a "relative motion" mode where you
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375 will always get relative motion events no matter how far in
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376 each direction you move the mouse - relative motion is not
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377 bounded by the edges of the window (though the absolute values
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378 of the mouse positions are clamped by the size of the window).
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379 The SVGAlib, framebuffer console, and DirectInput drivers all
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380 have this behavior naturally, and the GDI and BWindow drivers
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381 never go into "relative motion" mode.
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382
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383 1.0.2:
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384 Added a function to enable keyboard repeat:
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385 SDL_EnableKeyRepeat()
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386
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387 Added a function to grab the mouse and keyboard input
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388 SDL_WM_GrabInput()
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389
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390 Added a function to iconify the window.
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391 SDL_WM_IconifyWindow()
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392 If this function succeeds, the application will receive an event
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393 signaling SDL_APPACTIVE event
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394
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395 1.0.1:
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396 Added constants to SDL_audio.h for 16-bit native byte ordering:
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397 AUDIO_U16SYS, AUDIO_S16SYS
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398
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399 1.0.0:
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400 New public release
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401
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402 Version 0.11:
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403
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404 0.11.5:
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405 A new function SDL_GetVideoSurface() has been added, and returns
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406 a pointer to the current display surface.
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407
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408 SDL_AllocSurface() has been renamed SDL_CreateRGBSurface(), and
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409 a new function SDL_CreateRGBSurfaceFrom() has been added to allow
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410 creating an SDL surface from an existing pixel data buffer.
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411
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412 Added SDL_GetRGB() to the headers and documentation.
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413
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414 0.11.4:
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415 SDL_SetLibraryPath() is no longer meaningful, and has been removed.
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416
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417 0.11.3:
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418 A new flag for SDL_Init(), SDL_INIT_NOPARACHUTE, prevents SDL from
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419 installing fatal signal handlers on operating systems that support
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420 them.
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421
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422 Version 0.9:
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423
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424 0.9.15:
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425 SDL_CreateColorCursor() has been removed. Color cursors should
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426 be implemented as sprites, blitted by the application when the
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427 cursor moves. To get smooth color cursor updates when the app
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428 is busy, pass the SDL_INIT_EVENTTHREAD flag to SDL_Init(). This
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429 allows you to handle the mouse motion in another thread from an
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430 event filter function, but is currently only supported by Linux
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431 and BeOS. Note that you'll have to protect the display surface
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432 from multi-threaded access by using mutexes if you do this.
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433
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434 Thread-safe surface support has been removed from SDL.
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435 This makes blitting somewhat faster, by removing SDL_MiddleBlit().
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436 Code that used SDL_MiddleBlit() should use SDL_LowerBlit() instead.
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437 You can make your surfaces thread-safe by allocating your own
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438 mutex and making lock/unlock calls around accesses to your surface.
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439
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440 0.9.14:
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441 SDL_GetMouseState() now takes pointers to int rather than Uint16.
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442
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443 If you set the SDL_WINDOWID environment variable under UNIX X11,
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444 SDL will use that as the main window instead of creating it's own.
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445 This is an unsupported extension to SDL, and not portable at all.
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446
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447 0.9.13:
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448 Added a function SDL_SetLibraryPath() which can be used to specify
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449 the directory containing the SDL dynamic libraries. This is useful
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450 for commercial applications which ship with particular versions
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451 of the libraries, and for security on multi-user systems.
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452 If this function is not used, the default system directories are
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453 searched using the native dynamic object loading mechanism.
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454
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455 In order to support C linkage under Visual C++, you must declare
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456 main() without any return type:
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457 main(int argc, char *argv[]) {
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458 /* Do the program... */
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459 return(0);
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460 }
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461 C++ programs should also return a value if compiled under VC++.
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462
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463 The blit_endian member of the SDL_VideoInfo struct has been removed.
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464
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465 SDL_SymToASCII() has been replaced with SDL_GetKeyName(), so there
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466 is now no longer any function to translate a keysym to a character.
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467
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468 The SDL_keysym structure has been extended with a 'scancode' and
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469 'unicode' member. The 'scancode' is a hardware specific scancode
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470 for the key that was pressed, and may be 0. The 'unicode' member
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471 is a 16-bit UNICODE translation of the key that was pressed along
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472 with any modifiers or compose keys that have been pressed.
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473 If no UNICODE translation exists for the key, 'unicode' will be 0.
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diff changeset
474
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parents:
diff changeset
475 Added a function SDL_EnableUNICODE() to enable/disable UNICODE
74212992fb08 Initial revision
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parents:
diff changeset
476 translation of character keypresses. Translation defaults off.
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
477
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parents:
diff changeset
478 To convert existing code to use the new API, change code which
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
479 uses SDL_SymToASCII() to get the keyname to use SDL_GetKeyName(),
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
480 and change code which uses it to get the ASCII value of a sym to
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
481 use the 'unicode' member of the event keysym.
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Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
482
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Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
483 0.9.12:
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
484 There is partial support for 64-bit datatypes. I don't recommend
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
485 you use this if you have a choice, because 64-bit datatypes are not
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
486 supported on many platforms. On platforms for which it is supported,
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
487 the SDL_HAS_64BIT_TYPE C preprocessor define will be enabled, and
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
488 you can use the Uint64 and Sint64 datatypes.
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Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
489
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Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
490 Added functions to SDL_endian.h to support 64-bit datatypes:
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Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
491 SDL_SwapLE64(), SDL_SwapBE64(),
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Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
492 SDL_ReadLE64(), SDL_ReadBE64(), SDL_WriteLE64(), SDL_WriteBE64()
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
493
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Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
494 A new member "len_ratio" has been added to the SDL_AudioCVT structure,
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
495 and allows you to determine either the original buffer length or the
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
496 converted buffer length, given the other.
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
497
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Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
498 A new function SDL_FreeWAV() has been added to the API to free data
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
499 allocated by SDL_LoadWAV_RW(). This is necessary under Win32 since
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
500 the gcc compiled DLL uses a different heap than VC++ compiled apps.
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
501
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Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
502 SDL now has initial support for international keyboards using the
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
503 Latin character set.
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
504 If a particular mapping is desired, you can set the DEFAULT_KEYBOARD
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
505 compile-time variable, or you can set the environment variable
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
506 "SDL_KEYBOARD" to a string identifying the keyboard mapping you desire.
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Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
507 The valid values for these variables can be found in SDL_keyboard.c
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Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
508
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Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
509 Full support for German and French keyboards under X11 is implemented.
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Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
510
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Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
511 0.9.11:
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Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
512 The THREADED_EVENTS compile-time define has been replaced with the
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
513 SDL_INIT_EVENTTHREAD flag. If this flag is passed to SDL_Init(),
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
514 SDL will create a separate thread to perform input event handling.
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
515 If this flag is passed to SDL_Init(), and the OS doesn't support
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
516 event handling in a separate thread, SDL_Init() will fail.
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Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
517 Be sure to add calls to SDL_Delay() in your main thread to allow
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
518 the OS to schedule your event thread, or it may starve, leading
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
519 to slow event delivery and/or dropped events.
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
520 Currently MacOS and Win32 do not support this flag, while BeOS
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
521 and Linux do support it. I recommend that your application only
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
522 use this flag if absolutely necessary.
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
523
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Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
524 The SDL thread function passed to SDL_CreateThread() now returns a
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
525 status. This status can be retrieved by passing a non-NULL pointer
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
526 as the 'status' argument to SDL_WaitThread().
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
527
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Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
528 The volume parameter to SDL_MixAudio() has been increased in range
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
529 from (0-8) to (0-128)
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
530
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
531 SDL now has a data source abstraction which can encompass a file,
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
532 an area of memory, or any custom object you can envision. It uses
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
533 these abstractions, SDL_RWops, in the endian read/write functions,
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
534 and the built-in WAV and BMP file loaders. This means you can load
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
535 WAV chunks from memory mapped files, compressed archives, network
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
536 pipes, or anything else that has a data read abstraction.
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
537
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
538 There are three built-in data source abstractions:
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
539 SDL_RWFromFile(), SDL_RWFromFP(), SDL_RWFromMem()
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
540 along with a generic data source allocation function:
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
541 SDL_AllocRW()
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
542 These data sources can be used like stdio file pointers with the
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
543 following convenience functions:
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
544 SDL_RWseek(), SDL_RWread(), SDL_RWwrite(), SDL_RWclose()
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
545 These functions are defined in the new header file "SDL_rwops.h"
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
546
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
547 The endian swapping functions have been turned into macros for speed
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
548 and SDL_CalculateEndian() has been removed. SDL_endian.h now defines
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
549 SDL_BYTEORDER as either SDL_BIG_ENDIAN or SDL_LIL_ENDIAN depending on
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
550 the endianness of the host system.
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
551
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
552 The endian read/write functions now take an SDL_RWops pointer
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
553 instead of a stdio FILE pointer, to support the new data source
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
554 abstraction.
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
555
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
556 The SDL_*LoadWAV() functions have been replaced with a single
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
557 SDL_LoadWAV_RW() function that takes a SDL_RWops pointer as it's
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
558 first parameter, and a flag whether or not to automatically
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
559 free it as the second parameter. SDL_LoadWAV() is a macro for
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
560 backward compatibility and convenience:
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
561 SDL_LoadWAV_RW(SDL_RWFromFile("sample.wav", "rb"), 1, ...);
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
562
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
563 The SDL_*LoadBMP()/SDL_*SaveBMP() functions have each been replaced
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
564 with a single function that takes a SDL_RWops pointer as it's
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
565 first parameter, and a flag whether or not to automatically
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
566 free it as the second parameter. SDL_LoadBMP() and SDL_SaveBMP()
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
567 are macros for backward compatibility and convenience:
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
568 SDL_LoadBMP_RW(SDL_RWFromFile("sample.bmp", "rb"), 1, ...);
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
569 SDL_SaveBMP_RW(SDL_RWFromFile("sample.bmp", "wb"), 1, ...);
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
570 Note that these functions use SDL_RWseek() extensively, and should
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
571 not be used on pipes or other non-seekable data sources.
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
572
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
573 0.9.10:
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
574 The Linux SDL_SysWMInfo and SDL_SysWMMsg structures have been
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
575 extended to support multiple types of display drivers, as well as
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
576 safe access to the X11 display when THREADED_EVENTS is enabled.
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
577 The new structures are documented in the SDL_syswm.h header file.
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
578
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
579 Thanks to John Elliott <jce@seasip.demon.co.uk>, the UK keyboard
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
580 should now work properly, as well as the "Windows" keys on US
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
581 keyboards.
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
582
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
583 The Linux CD-ROM code now reads the CD-ROM devices from /etc/fstab
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
584 instead of trying to open each block device on the system.
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
585 The CD must be listed in /etc/fstab as using the iso9660 filesystem.
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
586
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
587 On Linux, if you define THREADED_EVENTS at compile time, a separate
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
588 thread will be spawned to gather X events asynchronously from the
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
589 graphics updates. This hasn't been extensively tested, but it does
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
590 provide a means of handling keyboard and mouse input in a separate
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
591 thread from the graphics thread. (This is now enabled by default.)
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
592
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
593 A special access function SDL_PeepEvents() allows you to manipulate
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
594 the event queue in a thread-safe manner, including peeking at events,
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
595 removing events of a specified type, and adding new events of arbitrary
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
596 type to the queue (use the new 'user' member of the SDL_Event type).
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
597
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
598 If you use SDL_PeepEvents() to gather events, then the main graphics
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
599 thread needs to call SDL_PumpEvents() periodically to drive the event
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
600 loop and generate input events. This is not necessary if SDL has been
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
601 compiled with THREADED_EVENTS defined, but doesn't hurt.
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
602
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
603 A new function SDL_ThreadID() returns the identifier associated with
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
604 the current thread.
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
605
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
606 0.9.9:
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
607 The AUDIO_STEREO format flag has been replaced with a new 'channels'
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
608 member of the SDL_AudioSpec structure. The channels are 1 for mono
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
609 audio, and 2 for stereo audio. In the future more channels may be
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
610 supported for 3D surround sound.
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
611
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
612 The SDL_MixAudio() function now takes an additional volume parameter,
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
613 which should be set to SDL_MIX_MAXVOLUME for compatibility with the
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
614 original function.
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
615
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
616 The CD-ROM functions which take a 'cdrom' parameter can now be
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
617 passed NULL, and will act on the last successfully opened CD-ROM.
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
618
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
619 0.9.8:
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
620 No changes, bugfixes only.
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
621
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
622 0.9.7:
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
623 No changes, bugfixes only.
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
624
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
625 0.9.6:
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
626 Added a fast rectangle fill function: SDL_FillRect()
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
627
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
628 Addition of a useful function for getting info on the video hardware:
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
629 const SDL_VideoInfo *SDL_GetVideoInfo(void)
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
630 This function replaces SDL_GetDisplayFormat().
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
631
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
632 Initial support for double-buffering:
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
633 Use the SDL_DOUBLEBUF flag in SDL_SetVideoMode()
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
634 Update the screen with a new function: SDL_Flip()
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635
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636 SDL_AllocSurface() takes two new flags:
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637 SDL_SRCCOLORKEY means that the surface will be used for colorkey blits
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638 and if the hardware supports hardware acceleration of colorkey blits
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639 between two surfaces in video memory, to place the surface in video
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640 memory if possible, otherwise it will be placed in system memory.
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641 SDL_SRCALPHA means that the surface will be used for alpha blits and
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642 if the hardware supports hardware acceleration of alpha blits between
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643 two surfaces in video memory, to place the surface in video memory
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644 if possible, otherwise it will be placed in system memory.
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645 SDL_HWSURFACE now means that the surface will be created with the
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646 same format as the display surface, since having surfaces in video
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647 memory is only useful for fast blitting to the screen, and you can't
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648 blit surfaces with different surface formats in video memory.
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649
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650 0.9.5:
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651 You can now pass a NULL mask to SDL_WM_SetIcon(), and it will assume
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652 that the icon consists of the entire image.
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653
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654 SDL_LowerBlit() is back -- but don't use it on the display surface.
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655 It is exactly the same as SDL_MiddleBlit(), but doesn't check for
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656 thread safety.
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657
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658 Added SDL_FPLoadBMP(), SDL_FPSaveBMP(), SDL_FPLoadWAV(), which take
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659 a FILE pointer instead of a file name.
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660
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661 Added CD-ROM audio control API:
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662 SDL_CDNumDrives()
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663 SDL_CDName()
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664 SDL_CDOpen()
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665 SDL_CDStatus()
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666 SDL_CDPlayTracks()
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667 SDL_CDPlay()
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668 SDL_CDPause()
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669 SDL_CDResume()
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670 SDL_CDStop()
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671 SDL_CDEject()
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672 SDL_CDClose()
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673
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674 0.9.4:
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675 No changes, bugfixes only.
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676
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677 0.9.3:
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678 Mouse motion event now includes relative motion information:
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679 Sint16 event->motion.xrel, Sint16 event->motion.yrel
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680
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681 X11 keyrepeat handling can be disabled by defining IGNORE_X_KEYREPEAT
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682 (Add -DIGNORE_X_KEYREPEAT to CFLAGS line in obj/x11Makefile)
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683
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684 0.9.2:
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685 No changes, bugfixes only.
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686
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687 0.9.1:
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688 Removed SDL_MapSurface() and SDL_UnmapSurface() -- surfaces are now
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689 automatically mapped on blit.
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690
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691 0.8.0:
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692 SDL stable release