sdl12-compat: src/SDL12_compat.c@b62ce3deedf4

     1 /*

     2   Simple DirectMedia Layer

     3   Copyright (C) 1997-2019 Sam Lantinga <slouken@libsdl.org>

     5   This software is provided 'as-is', without any express or implied

     6   warranty.  In no event will the authors be held liable for any damages

     7   arising from the use of this software.

     9   Permission is granted to anyone to use this software for any purpose,

    10   including commercial applications, and to alter it and redistribute it

    11   freely, subject to the following restrictions:

    13   1. The origin of this software must not be misrepresented; you must not

    14      claim that you wrote the original software. If you use this software

    15      in a product, an acknowledgment in the product documentation would be

    16      appreciated but is not required.

    17   2. Altered source versions must be plainly marked as such, and must not be

    18      misrepresented as being the original software.

    19   3. This notice may not be removed or altered from any source distribution.

    20 */

    22 /* This file contains functions for backwards compatibility with SDL 1.2 */

    24 // !!! FIXME: clean up code conventions

    25 // !!! FIXME: grep for VideoWindow20 places that might care if it's NULL

    27 #include "SDL20_include_wrapper.h"

    29 #if !SDL_VERSION_ATLEAST(2,0,0)

    30 #error You need to compile against SDL 2.0 headers.

    31 #endif

    33 /*

    34  * We report the library version as 1.2.$(SDL12_COMPAT_VERSION). This number

    35  *  should be way ahead of what SDL-1.2 Classic would report, so apps can

    36  *  decide if they're running under the compat layer, if they really care.

    37  */

    38 #define SDL12_COMPAT_VERSION 50

    40 #include <stdarg.h>

    42 // !!! IMPLEMENT_ME SDL_CDClose

    43 // !!! IMPLEMENT_ME SDL_CDEject

    44 // !!! IMPLEMENT_ME SDL_CDName

    45 // !!! IMPLEMENT_ME SDL_CDNumDrives

    46 // !!! IMPLEMENT_ME SDL_CDOpen

    47 // !!! IMPLEMENT_ME SDL_CDPause

    48 // !!! IMPLEMENT_ME SDL_CDPlay

    49 // !!! IMPLEMENT_ME SDL_CDPlayTracks

    50 // !!! IMPLEMENT_ME SDL_CDResume

    51 // !!! IMPLEMENT_ME SDL_CDStatus

    52 // !!! IMPLEMENT_ME SDL_CDStop

    53 // !!! IMPLEMENT_ME SDL_CreateYUVOverlay

    55 // !!! IMPLEMENT_ME SDL_DisplayFormatAlpha

    56 // !!! IMPLEMENT_ME SDL_DisplayYUVOverlay

    57 // !!! IMPLEMENT_ME SDL_EnableKeyRepeat

    58 // !!! IMPLEMENT_ME SDL_EnableUNICODE

    59 // !!! IMPLEMENT_ME SDL_FreeYUVOverlay

    61 // !!! IMPLEMENT_ME SDL_GL_Lock

    62 // !!! IMPLEMENT_ME SDL_GL_Unlock

    63 // !!! IMPLEMENT_ME SDL_GL_UpdateRects

    65 // !!! IMPLEMENT_ME SDL_GetKeyName

    66 // !!! IMPLEMENT_ME SDL_GetKeyState

    67 // !!! IMPLEMENT_ME SDL_GetModState

    68 // !!! IMPLEMENT_ME SDL_GetRelativeMouseState

    70 // !!! IMPLEMENT_ME SDL_GetVideoSurface

    71 // !!! IMPLEMENT_ME SDL_GetWMInfo

    73 // !!! IMPLEMENT_ME SDL_LockSurface

    74 // !!! IMPLEMENT_ME SDL_LockYUVOverlay

    75 // !!! IMPLEMENT_ME SDL_LowerBlit

    77 // !!! IMPLEMENT_ME SDL_SetAlpha

    78 // !!! IMPLEMENT_ME SDL_SetColorKey

    79 // !!! IMPLEMENT_ME SDL_SetColors

    81 // !!! IMPLEMENT_ME SDL_SetModState

    82 // !!! IMPLEMENT_ME SDL_SetPalette

    83 // !!! IMPLEMENT_ME SDL_SetVideoMode

    84 // !!! IMPLEMENT_ME SDL_SoftStretch

    85 // !!! IMPLEMENT_ME SDL_UnlockSurface

    86 // !!! IMPLEMENT_ME SDL_UnlockYUVOverlay

    87 // !!! IMPLEMENT_ME SDL_UpdateRects

    88 // !!! IMPLEMENT_ME SDL_UpperBlit

    90 // !!! FIXME: should SDL_VideoInit really be a passthrough?

    91 // !!! FIXME: should SDL_VideoQuit really be a passthrough?

    93 // !!! IMPLEMENT_ME SDL_WM_SetIcon

    94 // !!! IMPLEMENT_ME SDL_WM_ToggleFullScreen

    96 // !!! IMPLEMENT_ME X11_KeyToUnicode

    98 #define SDL_BlitSurface SDL_UpperBlit

   101 #if 0

   102 #define FIXME(x) do {} while (0)

   103 #else

   104 #define FIXME(x) \

   105     do { \

   106         static SDL_bool seen = SDL_FALSE; \

   107         if (!seen) { \

   108             fprintf(stderr, "FIXME: %s (%s:%d)\n", x, __FILE__, __LINE__); \

   109             seen = SDL_TRUE; \

   110         } \

   111     } while (0)

   112 #endif

   114 #define SDL20_SYM(rc,fn,params,args,ret) \

   115     typedef rc (SDLCALL *SDL20_##fn##_t) params; \

   116     static SDL20_##fn##_t SDL20_##fn = NULL;

   117 #include "SDL20_syms.h"

   119 /* Things that _should_ be binary compatible pass right through... */

   120 #define SDL20_SYM_PASSTHROUGH(rc,fn,params,args,ret) \

   121     DECLSPEC rc SDLCALL SDL_##fn params { ret SDL20_##fn args; }

   122 #include "SDL20_syms.h"

   125 /* these are macros (etc) in the SDL headers, so make our own. */

   126 #define SDL20_OutOfMemory() SDL20_Error(SDL_ENOMEM)

   127 #define SDL20_Unsupported() SDL20_Error(SDL_UNSUPPORTED)

   128 #define SDL20_InvalidParamError(param) SDL20_SetError("Parameter '%s' is invalid", (param))

   129 #define SDL20_zero(x) SDL20_memset(&(x), 0, sizeof((x)))

   130 #define SDL20_zerop(x) SDL20_memset((x), 0, sizeof(*(x)))

   131 #define SDL_ReportAssertion SDL20_ReportAssertion

   133 #define SDL12_DEFAULT_REPEAT_DELAY 500

   134 #define SDL12_DEFAULT_REPEAT_INTERVAL 30

   136 #define SDL12_INIT_TIMER       0x00000001

   137 #define SDL12_INIT_AUDIO       0x00000010

   138 #define SDL12_INIT_VIDEO       0x00000020

   139 #define SDL12_INIT_CDROM       0x00000100

   140 #define SDL12_INIT_JOYSTICK    0x00000200

   141 #define SDL12_INIT_NOPARACHUTE 0x00100000

   142 #define SDL12_INIT_EVENTTHREAD 0x01000000

   143 #define SDL12_INIT_EVERYTHING  0x0000FFFF

   145 typedef struct SDL12_Rect

   146 {

   147     Sint16 x;

   148     Sint16 y;

   149     Uint16 w;

   150     Uint16 h;

   151 } SDL12_Rect;

   153 typedef struct SDL12_Palette

   154 {

   155     int       ncolors;

   156     SDL_Color *colors;

   157 } SDL12_Palette;

   159 typedef struct SDL12_PixelFormat

   160 {

   161     SDL12_Palette *palette;

   162     Uint8 BitsPerPixel;

   163     Uint8 BytesPerPixel;

   164     Uint8 Rloss;

   165     Uint8 Gloss;

   166     Uint8 Bloss;

   167     Uint8 Aloss;

   168     Uint8 Rshift;

   169     Uint8 Gshift;

   170     Uint8 Bshift;

   171     Uint8 Ashift;

   172     Uint32 Rmask;

   173     Uint32 Gmask;

   174     Uint32 Bmask;

   175     Uint32 Amask;

   176     Uint32 colorkey;

   177     Uint8 alpha;

   178 } SDL12_PixelFormat;

   180 typedef struct SDL12_Surface

   181 {

   182     Uint32 flags;

   183     SDL12_PixelFormat *format;

   184     int w;

   185     int h;

   186     Uint16 pitch;

   187     void *pixels;

   188     int offset;

   189     SDL_Surface *surface20; /* the real SDL 1.2 has an opaque pointer to a platform-specific thing here named "hwdata". */

   190     SDL12_Rect clip_rect;

   191     Uint32 unused1;

   192     Uint32 locked;

   193     void *blitmap;

   194     unsigned int format_version;

   195     int refcount;

   196 } SDL12_Surface;

   198 typedef struct SDL12_Overlay

   199 {

   200     Uint32 format;

   201     int w;

   202     int h;

   203     int planes;

   204     Uint16 *pitches;

   205     Uint8 **pixels;

   206     void *hwfuncs;

   207     void *hwdata;

   208     Uint32 hw_overlay :1;

   209     Uint32 UnusedBits :31;

   210 } SDL12_Overlay;

   212 typedef struct

   213 {

   214     Uint32 hw_available :1;

   215     Uint32 wm_available :1;

   216     Uint32 UnusedBits1  :6;

   217     Uint32 UnusedBits2  :1;

   218     Uint32 blit_hw      :1;

   219     Uint32 blit_hw_CC   :1;

   220     Uint32 blit_hw_A    :1;

   221     Uint32 blit_sw      :1;

   222     Uint32 blit_sw_CC   :1;

   223     Uint32 blit_sw_A    :1;

   224     Uint32 blit_fill    :1;

   225     Uint32 UnusedBits3  :16;

   226     Uint32 video_mem;

   227     SDL_PixelFormat *vfmt;

   228     int current_w;

   229     int current_h;

   230 } SDL12_VideoInfo;

   233 #define SDL12_HWSURFACE 0x00000001

   234 #define SDL12_ASYNCBLIT 0x00000004

   235 #define SDL12_ANYFORMAT 0x10000000

   236 #define SDL12_HWPALETTE 0x20000000

   237 #define SDL12_DOUBLEBUF 0x40000000

   238 #define SDL12_FULLSCREEN 0x80000000

   239 #define SDL12_OPENGL 0x00000002

   240 #define SDL12_OPENGLBLIT 0x0000000A

   241 #define SDL12_RESIZABLE 0x00000010

   242 #define SDL12_NOFRAME 0x00000020

   243 #define SDL12_HWACCEL 0x00000100

   244 #define SDL12_SRCCOLORKEY 0x00001000

   245 #define SDL12_RLEACCELOK 0x00002000

   246 #define SDL12_RLEACCEL 0x00004000

   247 #define SDL12_SRCALPHA 0x00010000

   248 #define SDL12_PREALLOC 0x01000000

   250 typedef enum

   251 {

   252     SDLK12_UNKNOWN = 0,

   253     SDLK12_FIRST = 0,

   254     SDLK12_BACKSPACE = 8,

   255     SDLK12_TAB = 9,

   256     SDLK12_CLEAR = 12,

   257     SDLK12_RETURN = 13,

   258     SDLK12_PAUSE = 19,

   259     SDLK12_ESCAPE = 27,

   260     SDLK12_SPACE = 32,

   261     SDLK12_EXCLAIM = 33,

   262     SDLK12_QUOTEDBL = 34,

   263     SDLK12_HASH = 35,

   264     SDLK12_DOLLAR = 36,

   265     SDLK12_AMPERSAND = 38,

   266     SDLK12_QUOTE = 39,

   267     SDLK12_LEFTPAREN = 40,

   268     SDLK12_RIGHTPAREN = 41,

   269     SDLK12_ASTERISK = 42,

   270     SDLK12_PLUS = 43,

   271     SDLK12_COMMA = 44,

   272     SDLK12_MINUS = 45,

   273     SDLK12_PERIOD = 46,

   274     SDLK12_SLASH = 47,

   275     SDLK12_0 = 48,

   276     SDLK12_1 = 49,

   277     SDLK12_2 = 50,

   278     SDLK12_3 = 51,

   279     SDLK12_4 = 52,

   280     SDLK12_5 = 53,

   281     SDLK12_6 = 54,

   282     SDLK12_7 = 55,

   283     SDLK12_8 = 56,

   284     SDLK12_9 = 57,

   285     SDLK12_COLON = 58,

   286     SDLK12_SEMICOLON = 59,

   287     SDLK12_LESS = 60,

   288     SDLK12_EQUALS = 61,

   289     SDLK12_GREATER = 62,

   290     SDLK12_QUESTION = 63,

   291     SDLK12_AT = 64,

   292     SDLK12_LEFTBRACKET = 91,

   293     SDLK12_BACKSLASH = 92,

   294     SDLK12_RIGHTBRACKET = 93,

   295     SDLK12_CARET = 94,

   296     SDLK12_UNDERSCORE = 95,

   297     SDLK12_BACKQUOTE = 96,

   298     SDLK12_a = 97,

   299     SDLK12_b = 98,

   300     SDLK12_c = 99,

   301     SDLK12_d = 100,

   302     SDLK12_e = 101,

   303     SDLK12_f = 102,

   304     SDLK12_g = 103,

   305     SDLK12_h = 104,

   306     SDLK12_i = 105,

   307     SDLK12_j = 106,

   308     SDLK12_k = 107,

   309     SDLK12_l = 108,

   310     SDLK12_m = 109,

   311     SDLK12_n = 110,

   312     SDLK12_o = 111,

   313     SDLK12_p = 112,

   314     SDLK12_q = 113,

   315     SDLK12_r = 114,

   316     SDLK12_s = 115,

   317     SDLK12_t = 116,

   318     SDLK12_u = 117,

   319     SDLK12_v = 118,

   320     SDLK12_w = 119,

   321     SDLK12_x = 120,

   322     SDLK12_y = 121,

   323     SDLK12_z = 122,

   324     SDLK12_DELETE = 127,

   325     SDLK12_WORLD_0 = 160,

   326     SDLK12_WORLD_1 = 161,

   327     SDLK12_WORLD_2 = 162,

   328     SDLK12_WORLD_3 = 163,

   329     SDLK12_WORLD_4 = 164,

   330     SDLK12_WORLD_5 = 165,

   331     SDLK12_WORLD_6 = 166,

   332     SDLK12_WORLD_7 = 167,

   333     SDLK12_WORLD_8 = 168,

   334     SDLK12_WORLD_9 = 169,

   335     SDLK12_WORLD_10 = 170,

   336     SDLK12_WORLD_11 = 171,

   337     SDLK12_WORLD_12 = 172,

   338     SDLK12_WORLD_13 = 173,

   339     SDLK12_WORLD_14 = 174,

   340     SDLK12_WORLD_15 = 175,

   341     SDLK12_WORLD_16 = 176,

   342     SDLK12_WORLD_17 = 177,

   343     SDLK12_WORLD_18 = 178,

   344     SDLK12_WORLD_19 = 179,

   345     SDLK12_WORLD_20 = 180,

   346     SDLK12_WORLD_21 = 181,

   347     SDLK12_WORLD_22 = 182,

   348     SDLK12_WORLD_23 = 183,

   349     SDLK12_WORLD_24 = 184,

   350     SDLK12_WORLD_25 = 185,

   351     SDLK12_WORLD_26 = 186,

   352     SDLK12_WORLD_27 = 187,

   353     SDLK12_WORLD_28 = 188,

   354     SDLK12_WORLD_29 = 189,

   355     SDLK12_WORLD_30 = 190,

   356     SDLK12_WORLD_31 = 191,

   357     SDLK12_WORLD_32 = 192,

   358     SDLK12_WORLD_33 = 193,

   359     SDLK12_WORLD_34 = 194,

   360     SDLK12_WORLD_35 = 195,

   361     SDLK12_WORLD_36 = 196,

   362     SDLK12_WORLD_37 = 197,

   363     SDLK12_WORLD_38 = 198,

   364     SDLK12_WORLD_39 = 199,

   365     SDLK12_WORLD_40 = 200,

   366     SDLK12_WORLD_41 = 201,

   367     SDLK12_WORLD_42 = 202,

   368     SDLK12_WORLD_43 = 203,

   369     SDLK12_WORLD_44 = 204,

   370     SDLK12_WORLD_45 = 205,

   371     SDLK12_WORLD_46 = 206,

   372     SDLK12_WORLD_47 = 207,

   373     SDLK12_WORLD_48 = 208,

   374     SDLK12_WORLD_49 = 209,

   375     SDLK12_WORLD_50 = 210,

   376     SDLK12_WORLD_51 = 211,

   377     SDLK12_WORLD_52 = 212,

   378     SDLK12_WORLD_53 = 213,

   379     SDLK12_WORLD_54 = 214,

   380     SDLK12_WORLD_55 = 215,

   381     SDLK12_WORLD_56 = 216,

   382     SDLK12_WORLD_57 = 217,

   383     SDLK12_WORLD_58 = 218,

   384     SDLK12_WORLD_59 = 219,

   385     SDLK12_WORLD_60 = 220,

   386     SDLK12_WORLD_61 = 221,

   387     SDLK12_WORLD_62 = 222,

   388     SDLK12_WORLD_63 = 223,

   389     SDLK12_WORLD_64 = 224,

   390     SDLK12_WORLD_65 = 225,

   391     SDLK12_WORLD_66 = 226,

   392     SDLK12_WORLD_67 = 227,

   393     SDLK12_WORLD_68 = 228,

   394     SDLK12_WORLD_69 = 229,

   395     SDLK12_WORLD_70 = 230,

   396     SDLK12_WORLD_71 = 231,

   397     SDLK12_WORLD_72 = 232,

   398     SDLK12_WORLD_73 = 233,

   399     SDLK12_WORLD_74 = 234,

   400     SDLK12_WORLD_75 = 235,

   401     SDLK12_WORLD_76 = 236,

   402     SDLK12_WORLD_77 = 237,

   403     SDLK12_WORLD_78 = 238,

   404     SDLK12_WORLD_79 = 239,

   405     SDLK12_WORLD_80 = 240,

   406     SDLK12_WORLD_81 = 241,

   407     SDLK12_WORLD_82 = 242,

   408     SDLK12_WORLD_83 = 243,

   409     SDLK12_WORLD_84 = 244,

   410     SDLK12_WORLD_85 = 245,

   411     SDLK12_WORLD_86 = 246,

   412     SDLK12_WORLD_87 = 247,

   413     SDLK12_WORLD_88 = 248,

   414     SDLK12_WORLD_89 = 249,

   415     SDLK12_WORLD_90 = 250,

   416     SDLK12_WORLD_91 = 251,

   417     SDLK12_WORLD_92 = 252,

   418     SDLK12_WORLD_93 = 253,

   419     SDLK12_WORLD_94 = 254,

   420     SDLK12_WORLD_95 = 255,

   421     SDLK12_KP0 = 256,

   422     SDLK12_KP1 = 257,

   423     SDLK12_KP2 = 258,

   424     SDLK12_KP3 = 259,

   425     SDLK12_KP4 = 260,

   426     SDLK12_KP5 = 261,

   427     SDLK12_KP6 = 262,

   428     SDLK12_KP7 = 263,

   429     SDLK12_KP8 = 264,

   430     SDLK12_KP9 = 265,

   431     SDLK12_KP_PERIOD = 266,

   432     SDLK12_KP_DIVIDE = 267,

   433     SDLK12_KP_MULTIPLY = 268,

   434     SDLK12_KP_MINUS = 269,

   435     SDLK12_KP_PLUS = 270,

   436     SDLK12_KP_ENTER = 271,

   437     SDLK12_KP_EQUALS = 272,

   438     SDLK12_UP = 273,

   439     SDLK12_DOWN = 274,

   440     SDLK12_RIGHT = 275,

   441     SDLK12_LEFT = 276,

   442     SDLK12_INSERT = 277,

   443     SDLK12_HOME = 278,

   444     SDLK12_END = 279,

   445     SDLK12_PAGEUP = 280,

   446     SDLK12_PAGEDOWN = 281,

   447     SDLK12_F1 = 282,

   448     SDLK12_F2 = 283,

   449     SDLK12_F3 = 284,

   450     SDLK12_F4 = 285,

   451     SDLK12_F5 = 286,

   452     SDLK12_F6 = 287,

   453     SDLK12_F7 = 288,

   454     SDLK12_F8 = 289,

   455     SDLK12_F9 = 290,

   456     SDLK12_F10 = 291,

   457     SDLK12_F11 = 292,

   458     SDLK12_F12 = 293,

   459     SDLK12_F13 = 294,

   460     SDLK12_F14 = 295,

   461     SDLK12_F15 = 296,

   462     SDLK12_NUMLOCK = 300,

   463     SDLK12_CAPSLOCK = 301,

   464     SDLK12_SCROLLOCK = 302,

   465     SDLK12_RSHIFT = 303,

   466     SDLK12_LSHIFT = 304,

   467     SDLK12_RCTRL = 305,

   468     SDLK12_LCTRL = 306,

   469     SDLK12_RALT = 307,

   470     SDLK12_LALT = 308,

   471     SDLK12_RMETA = 309,

   472     SDLK12_LMETA = 310,

   473     SDLK12_LSUPER = 311,

   474     SDLK12_RSUPER = 312,

   475     SDLK12_MODE = 313,

   476     SDLK12_COMPOSE = 314,

   477     SDLK12_HELP = 315,

   478     SDLK12_PRINT = 316,

   479     SDLK12_SYSREQ = 317,

   480     SDLK12_BREAK = 318,

   481     SDLK12_MENU = 319,

   482     SDLK12_POWER = 320,

   483     SDLK12_EURO = 321,

   484     SDLK12_UNDO = 322,

   485     SDLK12_LAST

   486 } SDL12Key;

   488 typedef enum

   489 {

   490     KMOD12_NONE  = 0x0000,

   491     KMOD12_LSHIFT = 0x0001,

   492     KMOD12_RSHIFT = 0x0002,

   493     KMOD12_LCTRL = 0x0040,

   494     KMOD12_RCTRL = 0x0080,

   495     KMOD12_LALT = 0x0100,

   496     KMOD12_RALT = 0x0200,

   497     KMOD12_LMETA = 0x0400,

   498     KMOD12_RMETA = 0x0800,

   499     KMOD12_NUM = 0x1000,

   500     KMOD12_CAPS = 0x2000,

   501     KMOD12_MODE = 0x4000,

   502     KMOD12_RESERVED = 0x8000

   503 } SDL12Mod;

   505 typedef struct SDL12_keysym

   506 {

   507     Uint8 scancode;

   508     SDL12Key sym;

   509     SDL12Mod mod;

   510     Uint16 unicode;

   511 } SDL12_keysym;

   513 typedef enum

   514 {

   515     SDL12_NOEVENT = 0,

   516     SDL12_ACTIVEEVENT,

   517     SDL12_KEYDOWN,

   518     SDL12_KEYUP,

   519     SDL12_MOUSEMOTION,

   520     SDL12_MOUSEBUTTONDOWN,

   521     SDL12_MOUSEBUTTONUP,

   522     SDL12_JOYAXISMOTION,

   523     SDL12_JOYBALLMOTION,

   524     SDL12_JOYHATMOTION,

   525     SDL12_JOYBUTTONDOWN,

   526     SDL12_JOYBUTTONUP,

   527     SDL12_QUIT,

   528     SDL12_SYSWMEVENT,

   529     SDL12_EVENT_RESERVEDA,

   530     SDL12_EVENT_RESERVEDB,

   531     SDL12_VIDEORESIZE,

   532     SDL12_VIDEOEXPOSE,

   533     SDL12_USEREVENT = 24,

   534     SDL12_NUMEVENTS = 32

   535 } SDL12_EventType;

   538 #define SDL12_APPMOUSEFOCUS (1<<0)

   539 #define SDL12_APPINPUTFOCUS (1<<1)

   540 #define SDL12_APPACTIVE     (1<<2)

   542 typedef struct

   543 {

   544     Uint8 type;

   545     Uint8 gain;

   546     Uint8 state;

   547 } SDL12_ActiveEvent;

   549 typedef struct

   550 {

   551     Uint8 type;

   552     Uint8 which;

   553     Uint8 state;

   554     SDL12_keysym keysym;

   555 } SDL12_KeyboardEvent;

   557 typedef struct

   558 {

   559     Uint8 type;

   560     Uint8 which;

   561     Uint8 state;

   562     Uint16 x, y;

   563     Sint16 xrel;

   564     Sint16 yrel;

   565 } SDL12_MouseMotionEvent;

   567 typedef struct

   568 {

   569     Uint8 type;

   570     Uint8 which;

   571     Uint8 button;

   572     Uint8 state;

   573     Uint16 x, y;

   574 } SDL12_MouseButtonEvent;

   576 typedef struct

   577 {

   578     Uint8 type;

   579     Uint8 which;

   580     Uint8 axis;

   581     Sint16 value;

   582 } SDL12_JoyAxisEvent;

   584 typedef struct

   585 {

   586     Uint8 type;

   587     Uint8 which;

   588     Uint8 ball;

   589     Sint16 xrel;

   590     Sint16 yrel;

   591 } SDL12_JoyBallEvent;

   593 typedef struct

   594 {

   595     Uint8 type;

   596     Uint8 which;

   597     Uint8 hat;

   598     Uint8 value;

   599 } SDL12_JoyHatEvent;

   601 typedef struct

   602 {

   603     Uint8 type;

   604     Uint8 which;

   605     Uint8 button;

   606     Uint8 state;

   607 } SDL12_JoyButtonEvent;

   609 typedef struct

   610 {

   611     Uint8 type;

   612     int w;

   613     int h;

   614 } SDL12_ResizeEvent;

   616 typedef struct

   617 {

   618     Uint8 type;

   619 } SDL12_ExposeEvent;

   621 typedef struct

   622 {

   623     Uint8 type;

   624 } SDL12_QuitEvent;

   626 typedef struct

   627 {

   628     Uint8 type;

   629     int code;

   630     void *data1;

   631     void *data2;

   632 } SDL12_UserEvent;

   634 typedef struct

   635 {

   636     Uint8 type;

   637     void *msg;

   638 } SDL12_SysWMEvent;

   640 typedef union

   641 {

   642     Uint8 type;

   643     SDL12_ActiveEvent active;

   644     SDL12_KeyboardEvent key;

   645     SDL12_MouseMotionEvent motion;

   646     SDL12_MouseButtonEvent button;

   647     SDL12_JoyAxisEvent jaxis;

   648     SDL12_JoyBallEvent jball;

   649     SDL12_JoyHatEvent jhat;

   650     SDL12_JoyButtonEvent jbutton;

   651     SDL12_ResizeEvent resize;

   652     SDL12_ExposeEvent expose;

   653     SDL12_QuitEvent quit;

   654     SDL12_UserEvent user;

   655     SDL12_SysWMEvent syswm;

   656 } SDL12_Event;

   658 typedef int (SDLCALL *SDL12_EventFilter)(const SDL12_Event *event12);

   659 static int EventFilter20to12(void *data, SDL_Event *event20);

   661 typedef Uint32 (SDLCALL *SDL12_TimerCallback)(Uint32 interval);

   662 typedef SDL_TimerCallback SDL12_NewTimerCallback;

   664 typedef struct

   665 {

   666     SDL12_Rect area;

   667     Sint16 hot_x;

   668     Sint16 hot_y;

   669     Uint8 *data;

   670     Uint8 *mask;

   671     Uint8 *save[2];

   672     SDL_Cursor *wm_cursor;  /* the real SDL 1.2 has an opaque pointer to a platform-specific cursor here. */

   673 } SDL12_Cursor;

   675 typedef enum

   676 {

   677     SDL12_GL_RED_SIZE,

   678     SDL12_GL_GREEN_SIZE,

   679     SDL12_GL_BLUE_SIZE,

   680     SDL12_GL_ALPHA_SIZE,

   681     SDL12_GL_BUFFER_SIZE,

   682     SDL12_GL_DOUBLEBUFFER,

   683     SDL12_GL_DEPTH_SIZE,

   684     SDL12_GL_STENCIL_SIZE,

   685     SDL12_GL_ACCUM_RED_SIZE,

   686     SDL12_GL_ACCUM_GREEN_SIZE,

   687     SDL12_GL_ACCUM_BLUE_SIZE,

   688     SDL12_GL_ACCUM_ALPHA_SIZE,

   689     SDL12_GL_STEREO,

   690     SDL12_GL_MULTISAMPLEBUFFERS,

   691     SDL12_GL_MULTISAMPLESAMPLES,

   692     SDL12_GL_ACCELERATED_VISUAL,

   693     SDL12_GL_SWAP_CONTROL,

   694     SDL12_GL_MAX_ATTRIBUTE

   695 } SDL12_GLattr;

   698 typedef struct

   699 {

   700     Uint32 format;

   701     SDL12_Rect *modeslist12;

   702     SDL12_Rect **modes12;  /* ptrs to each item in modeslist, for SDL_ListModes() */

   703 } VideoModeList;

   705 typedef struct

   706 {

   707     int device_index;

   708     SDL_Joystick *joystick;

   709 } JoystickOpenedItem;

   711 // !!! FIXME: go through all of these.

   712 static VideoModeList *VideoModes = NULL;

   713 static int VideoModesCount = 0;

   714 static SDL12_VideoInfo VideoInfo12;

   715 static SDL_Window *VideoWindow20 = NULL;

   716 static SDL_Renderer *VideoRenderer20 = NULL;

   717 static SDL_Texture *VideoTexture20 = NULL;

   718 static SDL12_Surface *VideoSurface12 = NULL;

   719 static SDL_Surface *VideoConvertSurface20 = NULL;

   720 static SDL_GLContext *VideoGLContext20 = NULL;

   721 static char *WindowTitle = NULL;

   722 static char *WindowIconTitle = NULL;

   723 static SDL12_Surface *VideoIcon12;

   724 static int EnabledUnicode = 0;

   725 static int VideoDisplayIndex = 0;

   726 static int CDRomInit = 0;

   727 static SDL12_EventFilter EventFilter12 = NULL;

   728 static SDL12_Cursor *CurrentCursor12 = NULL;

   729 static Uint8 EventStates[SDL12_NUMEVENTS];

   730 static int SwapInterval = 0;

   731 static JoystickOpenedItem JoystickOpenList[16];

   733 // !!! FIXME: need a mutex for the event queue.

   734 #define SDL12_MAXEVENTS 128

   735 typedef struct EventQueueType

   736 {

   737     SDL12_Event event12;

   738     struct EventQueueType *next;

   739 } EventQueueType;

   741 static EventQueueType EventQueuePool[SDL12_MAXEVENTS];

   742 static EventQueueType *EventQueueHead = NULL;

   743 static EventQueueType *EventQueueTail = NULL;

   744 static EventQueueType *EventQueueAvailable = NULL;

   747 /* Obviously we can't use SDL_LoadObject() to load SDL2.  :)  */

   748 #if defined(_WINDOWS)

   749     #define WIN32_LEAN_AND_MEAN 1

   750     #include <windows.h>

   751     #define SDL20_LIBNAME "SDL2.dll"

   752     static HANDLE Loaded_SDL20 = NULL;

   753     #define LoadSDL20Library() ((Loaded_SDL20 = LoadLibraryA(SDL20_LIBNAME)) != NULL)

   754     #define LookupSDL20Sym(sym) GetProcAddress(Loaded_SDL20, sym)

   755     #define CloseSDL20Library() { { if (Loaded_SDL20) { FreeLibrary(Loaded_SDL20); Loaded_SDL20 = NULL; } }

   756 #elif defined(unix) || defined(__APPLE__)

   757     #include <dlfcn.h>

   758     #ifdef __APPLE__

   759     #define SDL20_LIBNAME "libSDL2.dylib"

   760     #else

   761     #define SDL20_LIBNAME "libSDL2-2.0.so.0"

   762     #endif

   763     static void *Loaded_SDL20 = NULL;

   764     #define LoadSDL20Library() ((Loaded_SDL20 = dlopen(SDL20_LIBNAME, RTLD_LOCAL|RTLD_NOW)) != NULL)

   765     #define LookupSDL20Sym(sym) dlsym(Loaded_SDL20, sym)

   766     #define CloseSDL20Library() { if (Loaded_SDL20) { dlclose(Loaded_SDL20); Loaded_SDL20 = NULL; } }

   767 #else

   768     #error Please define your platform.

   769 #endif

   771 static void *

   772 LoadSDL20Symbol(const char *fn, int *okay)

   773 {

   774     void *retval = NULL;

   775     if (*okay) { /* only bother trying if we haven't previously failed. */

   776         retval = LookupSDL20Sym(fn);

   777         if (retval == NULL) {

   778             /* Flip to 1 to warn but maybe work if nothing calls that function, flip to zero to fail out. */

   779             #if 0

   780             fprintf(stderr, "WARNING: LOAD FAILED: %s\n", fn);

   781             #else

   782             *okay = 0;

   783             #endif

   784         }

   785     }

   786     return retval;

   787 }

   789 static void

   790 UnloadSDL20(void)

   791 {

   792     #define SDL20_SYM(rc,fn,params,args,ret) SDL20_##fn = NULL;

   793     #include "SDL20_syms.h"

   794     CloseSDL20Library();

   795 }

   797 static int

   798 LoadSDL20(void)

   799 {

   800     int okay = 1;

   801     if (!Loaded_SDL20)

   802     {

   803         okay = LoadSDL20Library();

   804         #define SDL20_SYM(rc,fn,params,args,ret) SDL20_##fn = (SDL20_##fn##_t) LoadSDL20Symbol("SDL_" #fn, &okay);

   805         #include "SDL20_syms.h"

   806         if (!okay)

   807             UnloadSDL20();

   808     }

   809     return okay;

   810 }

   812 DECLSPEC const SDL_version * SDLCALL

   813 SDL_Linked_Version(void)

   814 {

   815     static const SDL_version version = { 1, 2, SDL12_COMPAT_VERSION };

   816     return &version;

   817 }

   819 DECLSPEC int SDLCALL

   820 SDL_sscanf(const char *text, const char *fmt, ...)

   821 {

   822     int retval;

   823     va_list ap;

   824     va_start(ap, fmt);

   825     retval = (int) SDL20_sscanf(text, fmt, ap);

   826     va_end(ap);

   827     return retval;

   828 }

   830 DECLSPEC int SDLCALL

   831 SDL_snprintf(char *text, size_t maxlen, const char *fmt, ...)

   832 {

   833     int retval;

   834     va_list ap;

   835     va_start(ap, fmt);

   836     retval = (int) SDL20_vsnprintf(text, maxlen, fmt, ap);

   837     va_end(ap);

   838     return retval;

   839 }

   841 DECLSPEC void * SDLCALL

   842 SDL_revcpy(void *dst, const void *src, size_t len)

   843 {

   844     /* this doesn't reverse the data...I think this was just a memcpy that

   845        was meant to be CPU-cache friendly if you knew you were working with

   846        data going backwards in memory, instead of jumping over pages to copy

   847        from the start...? Whatever, just do a memcpy here. */

   848     return SDL_memcpy(dst, src, len);

   849 }

   852 DECLSPEC SDL_bool SDLCALL

   853 SDL_HasMMXExt(void)

   854 {

   855     /* this isn't accurate, but SDL2 doesn't have this for some reason.

   856         MMXExt is available in all SSE1 machines, except early Athlon chips,

   857         so we'll just say it's available if they have SSE1. Oh well. */

   858     return SDL20_HasSSE();

   859 }

   861 DECLSPEC SDL_bool SDLCALL

   862 SDL_Has3DNowExt(void)

   863 {

   864     FIXME("check this");

   865     return SDL20_HasSSE();

   866 }

   868 DECLSPEC SDL_Joystick * SDLCALL

   869 SDL_JoystickOpen(int device_index)

   870 {

   871     int i;

   872     SDL20_LockJoysticks();

   873     for (i = 0; i < SDL_arraysize(JoystickOpenList); i++) {

   874         if (JoystickOpenList[i].joystick == NULL) {

   875             break;

   876         }

   877     }

   879     if (i == SDL_arraysize(JoystickOpenList)) {

   880         SDL20_UnlockJoysticks();

   881         SDL20_SetError("Too many open joysticks");

   882         return NULL;

   883     }

   885     JoystickOpenList[i].joystick = SDL20_JoystickOpen(device_index);

   886     if (JoystickOpenList[i].joystick) {

   887         JoystickOpenList[i].device_index = device_index;

   888     }

   890     SDL20_UnlockJoysticks();

   891     return JoystickOpenList[i].joystick;

   892 }

   894 DECLSPEC void SDLCALL

   895 SDL_JoystickClose(SDL_Joystick *joystick)

   896 {

   897     int i;

   898     SDL20_LockJoysticks();

   899     for (i = 0; i < SDL_arraysize(JoystickOpenList); i++) {

   900         if (JoystickOpenList[i].joystick == joystick) {

   901             break;

   902         }

   903     }

   905     if (i < SDL_arraysize(JoystickOpenList)) {

   906         JoystickOpenList[i].joystick = NULL;

   907     }

   909     SDL20_UnlockJoysticks();

   911     SDL20_JoystickClose(joystick);

   912 }

   914 DECLSPEC const char * SDLCALL

   915 SDL_JoystickName(int device_index)

   916 {

   917     return SDL20_JoystickNameForIndex(device_index);

   918 }

   920 DECLSPEC int SDLCALL

   921 SDL_JoystickIndex(SDL_Joystick *joystick)

   922 {

   923     int i;

   925     SDL20_LockJoysticks(); {

   926         for (i = 0; i < SDL_arraysize(JoystickOpenList); i++) {

   927             if (JoystickOpenList[i].joystick == joystick) {

   928                 break;

   929             }

   930         }

   932         if (i < SDL_arraysize(JoystickOpenList)) {

   933             SDL20_UnlockJoysticks();

   934             return JoystickOpenList[i].device_index;

   935         }

   937     }

   938     SDL20_UnlockJoysticks();

   939     return SDL20_SetError("Can't find joystick");

   940 }

   942 DECLSPEC int SDLCALL

   943 SDL_JoystickOpened(int device_index)

   944 {

   945     int retval = 0;

   946     int i;

   947     SDL20_LockJoysticks();

   948     for (i = 0; i < SDL_arraysize(JoystickOpenList); i++) {

   949         if ((JoystickOpenList[i].joystick) && (JoystickOpenList[i].device_index == device_index)) {

   950             retval = 1;

   951             break;

   952         }

   953     }

   954     SDL20_UnlockJoysticks();

   955     return retval;

   956 }

   958 static int

   959 GetVideoDisplay()

   960 {

   961     FIXME("cache this value during SDL_Init() so it doesn't change.");

   962     const char *variable = SDL20_getenv("SDL_VIDEO_FULLSCREEN_DISPLAY");

   963     if ( !variable ) {

   964         variable = SDL20_getenv("SDL_VIDEO_FULLSCREEN_HEAD");

   965     }

   966     if ( variable ) {

   967         return SDL20_atoi(variable);

   968     } else {

   969         return 0;

   970     }

   971 }

   973 /* This sets up VideoModes and VideoModesCount. You end up with arrays by pixel

   974     format, each with a value that 1.2's SDL_ListModes() can return. */

   975 static int

   976 Init12VidModes(void)

   977 {

   978     const int total = SDL20_GetNumDisplayModes(VideoDisplayIndex);

   979     VideoModeList *vmode = NULL;

   980     int num_modes = 0;

   981     void *ptr = NULL;

   982     int i, j;

   984     if (VideoModesCount > 0) {

   985         return 0;  // already did this.

   986     }

   988     SDL_assert(VideoModes == NULL);

   990     for (i = 0; i < total; ++i) {

   991         SDL_DisplayMode mode;

   993         if (SDL20_GetDisplayMode(VideoDisplayIndex, i, &mode) == -1) {

   994             continue;

   995         } else if (!mode.w || !mode.h) {

   996             SDL_assert(0 && "Can this actually happen?");

   997             continue;

   998         }

  1000         if (!vmode || (mode.format != vmode->format)) {  // SDL20_GetDisplayMode() sorts on bpp first. We know when to change arrays.

  1001             if (VideoModesCount > 0) {

  1002                 VideoModes[VideoModesCount-1].modes12[num_modes] = NULL;

  1003             }

  1004             ptr = (VideoModeList *) SDL20_realloc(VideoModes, sizeof (VideoModeList) * (VideoModesCount+1));

  1005             if (!ptr) {

  1006                 return SDL20_OutOfMemory();

  1007             }

  1008             VideoModes = (VideoModeList *) ptr;

  1009             vmode = &VideoModes[VideoModesCount];

  1010             vmode->format = mode.format;

  1011             vmode->modeslist12 = NULL;

  1012             vmode->modes12 = NULL;

  1013             VideoModesCount++;

  1014             num_modes = 0;

  1015         }

  1017         /* make sure we don't have this one already (with a different refresh rate, etc). */

  1018         for (j = 0; j < num_modes; j++) {

  1019             if ((vmode->modeslist12[j].w == mode.w) && (vmode->modeslist12[j].h == mode.h)) {

  1020                 break;

  1021             }

  1022         }

  1024         if (j < num_modes) {

  1025             continue;  /* already have this one. */

  1026         }

  1028         FIXME("Make sure mode dimensions fit in 16-bits for SDL12_Rect");

  1030         ptr = SDL20_realloc(vmode->modes12, sizeof (SDL12_Rect *) * (num_modes + 2));

  1031         if (ptr == NULL) {

  1032             return SDL20_OutOfMemory();

  1033         }

  1034         vmode->modes12 = (SDL12_Rect **) ptr;

  1036         ptr = SDL20_realloc(vmode->modeslist12, sizeof (SDL12_Rect) * (num_modes + 1));

  1037         if (ptr == NULL) {

  1038             return SDL20_OutOfMemory();

  1039         }

  1040         vmode->modeslist12 = (SDL12_Rect *) ptr;

  1042         vmode->modeslist12[num_modes].x = 0;

  1043         vmode->modeslist12[num_modes].y = 0;

  1044         vmode->modeslist12[num_modes].w = mode.w;

  1045         vmode->modeslist12[num_modes].h = mode.h;

  1047         vmode->modes12[num_modes] = &vmode->modeslist12[num_modes];

  1049         num_modes++;

  1050     }

  1052     if (VideoModesCount > 0) {

  1053         VideoModes[VideoModesCount-1].modes12[num_modes] = NULL;

  1054     }

  1056     return 0;

  1057 }

  1059 static int

  1060 Init12Video(void)

  1061 {

  1062     int i;

  1064     for (i = 0; i < SDL12_MAXEVENTS-1; i++)

  1065         EventQueuePool[i].next = &EventQueuePool[i+1];

  1066     EventQueuePool[SDL12_MAXEVENTS-1].next = NULL;

  1068     EventQueueHead = EventQueueTail = NULL;

  1069     EventQueueAvailable = EventQueuePool;

  1071     SDL_memset(EventStates, SDL_ENABLE, sizeof (EventStates)); /* on by default */

  1072     EventStates[SDL12_SYSWMEVENT] = SDL_IGNORE;  /* off by default. */

  1074     SDL20_SetEventFilter(EventFilter20to12, NULL);

  1076     VideoDisplayIndex = GetVideoDisplay();

  1077     SwapInterval = 0;

  1079     if (Init12VidModes() == -1) {

  1080         return -1;

  1081     }

  1083     return 0;

  1084 }

  1087 DECLSPEC int SDLCALL

  1088 SDL_InitSubSystem(Uint32 sdl12flags)

  1089 {

  1090     FIXME("there is never a parachute in SDL2, should we catch segfaults ourselves?");

  1092     FIXME("support event thread where it makes sense to do so?");

  1094     if ( (sdl12flags & SDL12_INIT_EVENTTHREAD) == SDL12_INIT_EVENTTHREAD ) {

  1095         return SDL20_SetError("OS doesn't support threaded events");

  1096     }

  1098     Uint32 sdl20flags = 0;

  1099     int rc;

  1101     if (!LoadSDL20())

  1102         return -1;

  1104 #ifdef __MACOSX__

  1105     extern void sdl12_compat_macos_init(void);

  1106     sdl12_compat_macos_init();

  1107 #endif

  1109     #define SETFLAG(flag) if (sdl12flags & SDL12_INIT_##flag) sdl20flags |= SDL_INIT_##flag

  1110     SETFLAG(TIMER);

  1111     SETFLAG(AUDIO);

  1112     SETFLAG(VIDEO);

  1113     SETFLAG(JOYSTICK);

  1114     SETFLAG(NOPARACHUTE);

  1115     #undef SETFLAG

  1117     // There's no CDROM in 2.0, but we'll just pretend it succeeded.

  1118     if (sdl12flags & SDL12_INIT_CDROM)

  1119         CDRomInit = 1;

  1121     FIXME("do something about SDL12_INIT_EVENTTHREAD");

  1123     rc = SDL20_Init(sdl20flags);

  1124     if ((rc == 0) && (sdl20flags & SDL_INIT_VIDEO)) {

  1125         if (Init12Video() == -1) {

  1126             FIXME("should we deinit other subsystems?");

  1127             return -1;

  1128         }

  1129     }

  1131     return rc;

  1132 }

  1134 DECLSPEC int SDLCALL

  1135 SDL_Init(Uint32 sdl12flags)

  1136 {

  1137     FIXME("what was different in 1.2?");

  1138     return SDL_InitSubSystem(sdl12flags);   /* there's no difference betwee Init and InitSubSystem in SDL2. */

  1139 }

  1142 static void

  1143 InitFlags12To20(const Uint32 flags12, Uint32 *_flags20, Uint32 *_extraflags)

  1144 {

  1145     Uint32 flags20 = 0;

  1146     Uint32 extraflags = 0;

  1148     #define SETFLAG(flag) if (flags12 & SDL12_INIT_##flag) flags20 |= SDL_INIT_##flag

  1149     SETFLAG(TIMER);

  1150     SETFLAG(AUDIO);

  1151     SETFLAG(VIDEO);

  1152     SETFLAG(JOYSTICK);

  1153     SETFLAG(NOPARACHUTE);

  1154     #undef SETFLAG

  1156     if ((flags12 & SDL12_INIT_CDROM) && (CDRomInit)) {

  1157         extraflags |= SDL12_INIT_CDROM;

  1158     }

  1160     FIXME("do something about SDL12_INIT_EVENTTHREAD");

  1162     *_flags20 = flags20;

  1163     *_extraflags = extraflags;

  1164 }

  1166 static Uint32

  1167 InitFlags20to12(const Uint32 flags20)

  1168 {

  1169     Uint32 flags12 = 0;

  1171     #define SETFLAG(flag) if (flags20 & SDL_INIT_##flag) flags12 |= SDL12_INIT_##flag

  1172     SETFLAG(TIMER);

  1173     SETFLAG(AUDIO);

  1174     SETFLAG(VIDEO);

  1175     SETFLAG(JOYSTICK);

  1176     SETFLAG(NOPARACHUTE);

  1177     #undef SETFLAG

  1179     return flags12;

  1180 }

  1183 DECLSPEC Uint32 SDLCALL

  1184 SDL_WasInit(Uint32 sdl12flags)

  1185 {

  1186     Uint32 sdl20flags, extraflags;

  1187     InitFlags12To20(sdl12flags, &sdl20flags, &extraflags);

  1189     return InitFlags20to12(SDL20_WasInit(sdl20flags)) | extraflags;

  1190 }

  1192 static void

  1193 Quit12Video(void)

  1194 {

  1195     int i;

  1197     for (i = 0; i < VideoModesCount; i++) {

  1198         SDL20_free(VideoModes[i].modeslist12);

  1199         SDL20_free(VideoModes[i].modes12);

  1200     }

  1201     SDL20_free(VideoModes);

  1203     SDL20_FreeFormat(VideoInfo12.vfmt);

  1204     SDL20_zero(VideoInfo12);

  1206     EventFilter12 = NULL;

  1207     EventQueueAvailable = EventQueueHead = EventQueueTail = NULL;

  1208     CurrentCursor12 = NULL;

  1209     VideoModes = NULL;

  1210     VideoModesCount = 0;

  1211 }

  1213 DECLSPEC void SDLCALL

  1214 SDL_QuitSubSystem(Uint32 sdl12flags)

  1215 {

  1216     Uint32 sdl20flags, extraflags;

  1217     InitFlags12To20(sdl12flags, &sdl20flags, &extraflags);

  1219     if (extraflags & SDL12_INIT_CDROM) {

  1220         CDRomInit = 0;

  1221     }

  1223     FIXME("reset a bunch of other global variables too.");

  1224     if (sdl12flags & SDL12_INIT_VIDEO) {

  1225         Quit12Video();

  1226     }

  1228     FIXME("do something about SDL12_INIT_EVENTTHREAD");

  1229     SDL20_QuitSubSystem(sdl20flags);

  1231     if ((SDL20_WasInit(0) == 0) && (!CDRomInit)) {

  1232         SDL20_Quit();

  1233         UnloadSDL20();

  1234     }

  1235 }

  1237 DECLSPEC void SDLCALL

  1238 SDL_Quit(void)

  1239 {

  1240     SDL_QuitSubSystem(SDL_WasInit(0) | SDL12_INIT_CDROM);

  1241 }

  1243 DECLSPEC void SDLCALL

  1244 SDL_SetError(const char *fmt, ...)

  1245 {

  1246     char ch;

  1247     char *str = NULL;

  1248     size_t len = 0;

  1249     va_list ap;

  1251     if (!LoadSDL20()) {  /* SDL_SetError gets called before init sometimes. */

  1252         return;

  1253     }

  1255     va_start(ap, fmt);

  1256     len = SDL20_vsnprintf(&ch, 1, fmt, ap);

  1257     va_end(ap);

  1259     str = (char *) SDL20_malloc(len + 1);

  1260     if (!str)

  1261         SDL20_OutOfMemory();

  1262     else

  1263     {

  1264         va_start(ap, fmt);

  1265         SDL20_vsnprintf(str, len + 1, fmt, ap);

  1266         va_end(ap);

  1267         SDL20_SetError("%s", str);

  1268         SDL20_free(str);

  1269     }

  1270 }

  1272 DECLSPEC const char * SDLCALL

  1273 SDL_GetError(void)

  1274 {

  1275     if (SDL20_GetError == NULL)

  1276     {

  1277         static const char noload_errstr[] = "The SDL 2.0 library that the 1.2 compatibility layer needs isn't loaded";

  1278         return noload_errstr;

  1279     }

  1280     return SDL20_GetError();

  1281 }

  1284 static const char *

  1285 GetDriverName(const char *name, char *namebuf, int maxlen)

  1286 {

  1287     if (name) {

  1288         if (namebuf) {

  1289             SDL20_strlcpy(namebuf, name, maxlen);

  1290             return namebuf;

  1291         } else {

  1292             return name;

  1293         }

  1294     }

  1295     return NULL;

  1296 }

  1298 DECLSPEC const char * SDLCALL

  1299 SDL_AudioDriverName(char *namebuf, int maxlen)

  1300 {

  1301     return GetDriverName(SDL20_GetCurrentAudioDriver(), namebuf, maxlen);

  1302 }

  1304 DECLSPEC const char * SDLCALL

  1305 SDL_VideoDriverName(char *namebuf, int maxlen)

  1306 {

  1307     return GetDriverName(SDL20_GetCurrentVideoDriver(), namebuf, maxlen);

  1308 }

  1310 DECLSPEC int SDLCALL

  1311 SDL_PollEvent(SDL12_Event *event12)

  1312 {

  1313     EventQueueType *next;

  1315     SDL20_PumpEvents();  /* this will run our filter and build our 1.2 queue. */

  1317     if (EventQueueHead == NULL)

  1318         return 0;  /* no events at the moment. */

  1320     SDL_memcpy(event12, &EventQueueHead->event12, sizeof (SDL12_Event));

  1321     next = EventQueueHead->next;

  1322     EventQueueHead->next = EventQueueAvailable;

  1323     EventQueueAvailable = EventQueueHead;

  1324     EventQueueHead = next;

  1325     if (!next) {

  1326         EventQueueTail = NULL;

  1327     }

  1329     return 1;

  1330 }

  1332 DECLSPEC int SDLCALL

  1333 SDL_PushEvent(SDL12_Event *event12)

  1334 {

  1335     EventQueueType *item = EventQueueAvailable;

  1336     if (item == NULL)

  1337         return -1;  /* no space available at the moment. */

  1339     EventQueueAvailable = item->next;

  1340     if (EventQueueTail)

  1341         EventQueueTail->next = item;

  1342     else

  1343         EventQueueHead = EventQueueTail = item;

  1344     item->next = NULL;

  1346     SDL_memcpy(&item->event12, event12, sizeof (SDL12_Event));

  1347     return 0;

  1348 }

  1350 DECLSPEC int SDLCALL

  1351 SDL_PeepEvents(SDL12_Event *events12, int numevents, SDL_eventaction action, Uint32 mask)

  1352 {

  1353     if (action == SDL_ADDEVENT)

  1354     {

  1355         int i;

  1356         for (i = 0; i < numevents; i++)

  1357         {

  1358             if (SDL_PushEvent(&events12[i]) == -1)

  1359                 break;  /* out of space for more events. */

  1360         }

  1361         return i;

  1362     }

  1363     else if ((action == SDL_PEEKEVENT) || (action == SDL_GETEVENT))

  1364     {

  1365         const SDL_bool isGet = (action == SDL_GETEVENT);

  1366         EventQueueType *prev = NULL;

  1367         EventQueueType *item = EventQueueHead;

  1368         EventQueueType *next = NULL;

  1369         int chosen = 0;

  1370         while (chosen < numevents)

  1371         {

  1372             EventQueueType *nextPrev = item;

  1373             if (!item)

  1374                 break;  /* no more events at the moment. */

  1376             next = item->next;  /* copy, since we might overwrite item->next */

  1378             if (mask & (1<<item->event12.type))

  1379             {

  1380                 SDL_memcpy(&events12[chosen++], &item->event12, sizeof (SDL12_Event));

  1381                 if (isGet)  /* remove from list? */

  1382                 {

  1383                     if (prev != NULL)

  1384                         prev->next = next;

  1385                     if (item == EventQueueHead)

  1386                         EventQueueHead = next;

  1387                     if (item == EventQueueTail)

  1388                         EventQueueTail = prev;

  1390                     /* put it back in the free pool. */

  1391                     item->next = EventQueueAvailable;

  1392                     EventQueueAvailable = item;

  1393                     nextPrev = prev;  /* previous item doesn't change. */

  1394                 }

  1395             }

  1397             item = next;

  1398             prev = nextPrev;

  1399         }

  1400         return chosen;

  1401     }

  1403     return 0;

  1404 }

  1406 DECLSPEC int SDLCALL

  1407 SDL_WaitEvent(SDL12_Event *event12)

  1408 {

  1409     FIXME("In 1.2, this only fails (-1) if you haven't SDL_Init()'d.");

  1410     while (!SDL_PollEvent(event12))

  1411         SDL20_Delay(10);

  1412     return 1;

  1413 }

  1415 static SDL_bool

  1416 PushEventIfNotFiltered(SDL12_Event *event12)

  1417 {

  1418     if (event12->type != SDL12_NOEVENT)

  1419     {

  1420         if (EventStates[event12->type] != SDL_IGNORE)

  1421         {

  1422             if ((!EventFilter12) || (EventFilter12(event12)))

  1423                 return (SDL_PushEvent(event12) == 0);

  1424         }

  1425     }

  1426     return SDL_FALSE;

  1427 }

  1429 DECLSPEC Uint8 SDLCALL

  1430 SDL_EventState(Uint8 type, int state)

  1431 {

  1432     /* the values of "state" match between 1.2 and 2.0 */

  1433     const Uint8 retval = EventStates[type];

  1434     SDL12_Event e;

  1436     if (state != SDL_QUERY)

  1437         EventStates[type] = state;

  1438     if (state == SDL_IGNORE)  /* drop existing events of this type. */

  1439         while (SDL_PeepEvents(&e, 1, SDL_GETEVENT, (1<<type))) {}

  1441     return retval;

  1442 }

  1444 DECLSPEC Uint8 SDLCALL

  1445 SDL_GetMouseState(int *x, int *y)

  1446 {

  1447     const Uint32 state20 = SDL20_GetMouseState(x, y);

  1448     Uint8 retval = (state20 & 0x7);  /* left, right, and middle will match. */

  1450     /* the X[12] buttons are different in 1.2; mousewheel was in the way. */

  1451     if (state20 & SDL_BUTTON(SDL_BUTTON_X1))

  1452         retval |= (1<<5);

  1453     if (state20 & SDL_BUTTON(SDL_BUTTON_X2))

  1454         retval |= (1<<6);

  1456     return retval;

  1457 }

  1459 DECLSPEC char * SDLCALL

  1460 SDL_GetKeyName(SDL12Key key)

  1461 {

  1462     switch (key) {

  1463         #define CASESDLK12TONAME(k, n) case k: return (char *) n

  1464 	    CASESDLK12TONAME(SDLK12_BACKSPACE, "backspace");

  1465 	    CASESDLK12TONAME(SDLK12_TAB, "tab");

  1466 	    CASESDLK12TONAME(SDLK12_CLEAR, "clear");

  1467 	    CASESDLK12TONAME(SDLK12_RETURN, "return");

  1468 	    CASESDLK12TONAME(SDLK12_PAUSE, "pause");

  1469 	    CASESDLK12TONAME(SDLK12_ESCAPE, "escape");

  1470 	    CASESDLK12TONAME(SDLK12_SPACE, "space");

  1471 	    CASESDLK12TONAME(SDLK12_EXCLAIM, "!");

  1472 	    CASESDLK12TONAME(SDLK12_QUOTEDBL, "\"");

  1473 	    CASESDLK12TONAME(SDLK12_HASH, "#");

  1474 	    CASESDLK12TONAME(SDLK12_DOLLAR, "$");

  1475 	    CASESDLK12TONAME(SDLK12_AMPERSAND, "&");

  1476 	    CASESDLK12TONAME(SDLK12_QUOTE, "'");

  1477 	    CASESDLK12TONAME(SDLK12_LEFTPAREN, "(");

  1478 	    CASESDLK12TONAME(SDLK12_RIGHTPAREN, ")");

  1479 	    CASESDLK12TONAME(SDLK12_ASTERISK, "*");

  1480 	    CASESDLK12TONAME(SDLK12_PLUS, "+");

  1481 	    CASESDLK12TONAME(SDLK12_COMMA, ",");

  1482 	    CASESDLK12TONAME(SDLK12_MINUS, "-");

  1483 	    CASESDLK12TONAME(SDLK12_PERIOD, ".");

  1484 	    CASESDLK12TONAME(SDLK12_SLASH, "/");

  1485 	    CASESDLK12TONAME(SDLK12_0, "0");

  1486 	    CASESDLK12TONAME(SDLK12_1, "1");

  1487 	    CASESDLK12TONAME(SDLK12_2, "2");

  1488 	    CASESDLK12TONAME(SDLK12_3, "3");

  1489 	    CASESDLK12TONAME(SDLK12_4, "4");

  1490 	    CASESDLK12TONAME(SDLK12_5, "5");

  1491 	    CASESDLK12TONAME(SDLK12_6, "6");

  1492 	    CASESDLK12TONAME(SDLK12_7, "7");

  1493 	    CASESDLK12TONAME(SDLK12_8, "8");

  1494 	    CASESDLK12TONAME(SDLK12_9, "9");

  1495 	    CASESDLK12TONAME(SDLK12_COLON, ":");

  1496 	    CASESDLK12TONAME(SDLK12_SEMICOLON, ");");

  1497 	    CASESDLK12TONAME(SDLK12_LESS, "<");

  1498 	    CASESDLK12TONAME(SDLK12_EQUALS, "=");

  1499 	    CASESDLK12TONAME(SDLK12_GREATER, ">");

  1500 	    CASESDLK12TONAME(SDLK12_QUESTION, "?");

  1501 	    CASESDLK12TONAME(SDLK12_AT, "@");

  1502 	    CASESDLK12TONAME(SDLK12_LEFTBRACKET, "[");

  1503 	    CASESDLK12TONAME(SDLK12_BACKSLASH, "\\");

  1504 	    CASESDLK12TONAME(SDLK12_RIGHTBRACKET, "]");

  1505 	    CASESDLK12TONAME(SDLK12_CARET, "^");

  1506 	    CASESDLK12TONAME(SDLK12_UNDERSCORE, "_");

  1507 	    CASESDLK12TONAME(SDLK12_BACKQUOTE, "`");

  1508 	    CASESDLK12TONAME(SDLK12_a, "a");

  1509 	    CASESDLK12TONAME(SDLK12_b, "b");

  1510 	    CASESDLK12TONAME(SDLK12_c, "c");

  1511 	    CASESDLK12TONAME(SDLK12_d, "d");

  1512 	    CASESDLK12TONAME(SDLK12_e, "e");

  1513 	    CASESDLK12TONAME(SDLK12_f, "f");

  1514 	    CASESDLK12TONAME(SDLK12_g, "g");

  1515 	    CASESDLK12TONAME(SDLK12_h, "h");

  1516 	    CASESDLK12TONAME(SDLK12_i, "i");

  1517 	    CASESDLK12TONAME(SDLK12_j, "j");

  1518 	    CASESDLK12TONAME(SDLK12_k, "k");

  1519 	    CASESDLK12TONAME(SDLK12_l, "l");

  1520 	    CASESDLK12TONAME(SDLK12_m, "m");

  1521 	    CASESDLK12TONAME(SDLK12_n, "n");

  1522 	    CASESDLK12TONAME(SDLK12_o, "o");

  1523 	    CASESDLK12TONAME(SDLK12_p, "p");

  1524 	    CASESDLK12TONAME(SDLK12_q, "q");

  1525 	    CASESDLK12TONAME(SDLK12_r, "r");

  1526 	    CASESDLK12TONAME(SDLK12_s, "s");

  1527 	    CASESDLK12TONAME(SDLK12_t, "t");

  1528 	    CASESDLK12TONAME(SDLK12_u, "u");

  1529 	    CASESDLK12TONAME(SDLK12_v, "v");

  1530 	    CASESDLK12TONAME(SDLK12_w, "w");

  1531 	    CASESDLK12TONAME(SDLK12_x, "x");

  1532 	    CASESDLK12TONAME(SDLK12_y, "y");

  1533 	    CASESDLK12TONAME(SDLK12_z, "z");

  1534 	    CASESDLK12TONAME(SDLK12_DELETE, "delete");

  1536 	    CASESDLK12TONAME(SDLK12_WORLD_0, "world 0");

  1537 	    CASESDLK12TONAME(SDLK12_WORLD_1, "world 1");

  1538 	    CASESDLK12TONAME(SDLK12_WORLD_2, "world 2");

  1539 	    CASESDLK12TONAME(SDLK12_WORLD_3, "world 3");

  1540 	    CASESDLK12TONAME(SDLK12_WORLD_4, "world 4");

  1541 	    CASESDLK12TONAME(SDLK12_WORLD_5, "world 5");

  1542 	    CASESDLK12TONAME(SDLK12_WORLD_6, "world 6");

  1543 	    CASESDLK12TONAME(SDLK12_WORLD_7, "world 7");

  1544 	    CASESDLK12TONAME(SDLK12_WORLD_8, "world 8");

  1545 	    CASESDLK12TONAME(SDLK12_WORLD_9, "world 9");

  1546 	    CASESDLK12TONAME(SDLK12_WORLD_10, "world 10");

  1547 	    CASESDLK12TONAME(SDLK12_WORLD_11, "world 11");

  1548 	    CASESDLK12TONAME(SDLK12_WORLD_12, "world 12");

  1549 	    CASESDLK12TONAME(SDLK12_WORLD_13, "world 13");

  1550 	    CASESDLK12TONAME(SDLK12_WORLD_14, "world 14");

  1551 	    CASESDLK12TONAME(SDLK12_WORLD_15, "world 15");

  1552 	    CASESDLK12TONAME(SDLK12_WORLD_16, "world 16");

  1553 	    CASESDLK12TONAME(SDLK12_WORLD_17, "world 17");

  1554 	    CASESDLK12TONAME(SDLK12_WORLD_18, "world 18");

  1555 	    CASESDLK12TONAME(SDLK12_WORLD_19, "world 19");

  1556 	    CASESDLK12TONAME(SDLK12_WORLD_20, "world 20");

  1557 	    CASESDLK12TONAME(SDLK12_WORLD_21, "world 21");

  1558 	    CASESDLK12TONAME(SDLK12_WORLD_22, "world 22");

  1559 	    CASESDLK12TONAME(SDLK12_WORLD_23, "world 23");

  1560 	    CASESDLK12TONAME(SDLK12_WORLD_24, "world 24");

  1561 	    CASESDLK12TONAME(SDLK12_WORLD_25, "world 25");

  1562 	    CASESDLK12TONAME(SDLK12_WORLD_26, "world 26");

  1563 	    CASESDLK12TONAME(SDLK12_WORLD_27, "world 27");

  1564 	    CASESDLK12TONAME(SDLK12_WORLD_28, "world 28");

  1565 	    CASESDLK12TONAME(SDLK12_WORLD_29, "world 29");

  1566 	    CASESDLK12TONAME(SDLK12_WORLD_30, "world 30");

  1567 	    CASESDLK12TONAME(SDLK12_WORLD_31, "world 31");

  1568 	    CASESDLK12TONAME(SDLK12_WORLD_32, "world 32");

  1569 	    CASESDLK12TONAME(SDLK12_WORLD_33, "world 33");

  1570 	    CASESDLK12TONAME(SDLK12_WORLD_34, "world 34");

  1571 	    CASESDLK12TONAME(SDLK12_WORLD_35, "world 35");

  1572 	    CASESDLK12TONAME(SDLK12_WORLD_36, "world 36");

  1573 	    CASESDLK12TONAME(SDLK12_WORLD_37, "world 37");

  1574 	    CASESDLK12TONAME(SDLK12_WORLD_38, "world 38");

  1575 	    CASESDLK12TONAME(SDLK12_WORLD_39, "world 39");

  1576 	    CASESDLK12TONAME(SDLK12_WORLD_40, "world 40");

  1577 	    CASESDLK12TONAME(SDLK12_WORLD_41, "world 41");

  1578 	    CASESDLK12TONAME(SDLK12_WORLD_42, "world 42");

  1579 	    CASESDLK12TONAME(SDLK12_WORLD_43, "world 43");

  1580 	    CASESDLK12TONAME(SDLK12_WORLD_44, "world 44");

  1581 	    CASESDLK12TONAME(SDLK12_WORLD_45, "world 45");

  1582 	    CASESDLK12TONAME(SDLK12_WORLD_46, "world 46");

  1583 	    CASESDLK12TONAME(SDLK12_WORLD_47, "world 47");

  1584 	    CASESDLK12TONAME(SDLK12_WORLD_48, "world 48");

  1585 	    CASESDLK12TONAME(SDLK12_WORLD_49, "world 49");

  1586 	    CASESDLK12TONAME(SDLK12_WORLD_50, "world 50");

  1587 	    CASESDLK12TONAME(SDLK12_WORLD_51, "world 51");

  1588 	    CASESDLK12TONAME(SDLK12_WORLD_52, "world 52");

  1589 	    CASESDLK12TONAME(SDLK12_WORLD_53, "world 53");

  1590 	    CASESDLK12TONAME(SDLK12_WORLD_54, "world 54");

  1591 	    CASESDLK12TONAME(SDLK12_WORLD_55, "world 55");

  1592 	    CASESDLK12TONAME(SDLK12_WORLD_56, "world 56");

  1593 	    CASESDLK12TONAME(SDLK12_WORLD_57, "world 57");

  1594 	    CASESDLK12TONAME(SDLK12_WORLD_58, "world 58");

  1595 	    CASESDLK12TONAME(SDLK12_WORLD_59, "world 59");

  1596 	    CASESDLK12TONAME(SDLK12_WORLD_60, "world 60");

  1597 	    CASESDLK12TONAME(SDLK12_WORLD_61, "world 61");

  1598 	    CASESDLK12TONAME(SDLK12_WORLD_62, "world 62");

  1599 	    CASESDLK12TONAME(SDLK12_WORLD_63, "world 63");

  1600 	    CASESDLK12TONAME(SDLK12_WORLD_64, "world 64");

  1601 	    CASESDLK12TONAME(SDLK12_WORLD_65, "world 65");

  1602 	    CASESDLK12TONAME(SDLK12_WORLD_66, "world 66");

  1603 	    CASESDLK12TONAME(SDLK12_WORLD_67, "world 67");

  1604 	    CASESDLK12TONAME(SDLK12_WORLD_68, "world 68");

  1605 	    CASESDLK12TONAME(SDLK12_WORLD_69, "world 69");

  1606 	    CASESDLK12TONAME(SDLK12_WORLD_70, "world 70");

  1607 	    CASESDLK12TONAME(SDLK12_WORLD_71, "world 71");

  1608 	    CASESDLK12TONAME(SDLK12_WORLD_72, "world 72");

  1609 	    CASESDLK12TONAME(SDLK12_WORLD_73, "world 73");

  1610 	    CASESDLK12TONAME(SDLK12_WORLD_74, "world 74");

  1611 	    CASESDLK12TONAME(SDLK12_WORLD_75, "world 75");

  1612 	    CASESDLK12TONAME(SDLK12_WORLD_76, "world 76");

  1613 	    CASESDLK12TONAME(SDLK12_WORLD_77, "world 77");

  1614 	    CASESDLK12TONAME(SDLK12_WORLD_78, "world 78");

  1615 	    CASESDLK12TONAME(SDLK12_WORLD_79, "world 79");

  1616 	    CASESDLK12TONAME(SDLK12_WORLD_80, "world 80");

  1617 	    CASESDLK12TONAME(SDLK12_WORLD_81, "world 81");

  1618 	    CASESDLK12TONAME(SDLK12_WORLD_82, "world 82");

  1619 	    CASESDLK12TONAME(SDLK12_WORLD_83, "world 83");

  1620 	    CASESDLK12TONAME(SDLK12_WORLD_84, "world 84");

  1621 	    CASESDLK12TONAME(SDLK12_WORLD_85, "world 85");

  1622 	    CASESDLK12TONAME(SDLK12_WORLD_86, "world 86");

  1623 	    CASESDLK12TONAME(SDLK12_WORLD_87, "world 87");

  1624 	    CASESDLK12TONAME(SDLK12_WORLD_88, "world 88");

  1625 	    CASESDLK12TONAME(SDLK12_WORLD_89, "world 89");

  1626 	    CASESDLK12TONAME(SDLK12_WORLD_90, "world 90");

  1627 	    CASESDLK12TONAME(SDLK12_WORLD_91, "world 91");

  1628 	    CASESDLK12TONAME(SDLK12_WORLD_92, "world 92");

  1629 	    CASESDLK12TONAME(SDLK12_WORLD_93, "world 93");

  1630 	    CASESDLK12TONAME(SDLK12_WORLD_94, "world 94");

  1631 	    CASESDLK12TONAME(SDLK12_WORLD_95, "world 95");

  1633 	    CASESDLK12TONAME(SDLK12_KP0, "[0]");

  1634 	    CASESDLK12TONAME(SDLK12_KP1, "[1]");

  1635 	    CASESDLK12TONAME(SDLK12_KP2, "[2]");

  1636 	    CASESDLK12TONAME(SDLK12_KP3, "[3]");

  1637 	    CASESDLK12TONAME(SDLK12_KP4, "[4]");

  1638 	    CASESDLK12TONAME(SDLK12_KP5, "[5]");

  1639 	    CASESDLK12TONAME(SDLK12_KP6, "[6]");

  1640 	    CASESDLK12TONAME(SDLK12_KP7, "[7]");

  1641 	    CASESDLK12TONAME(SDLK12_KP8, "[8]");

  1642 	    CASESDLK12TONAME(SDLK12_KP9, "[9]");

  1643 	    CASESDLK12TONAME(SDLK12_KP_PERIOD, "[.]");

  1644 	    CASESDLK12TONAME(SDLK12_KP_DIVIDE, "[/]");

  1645 	    CASESDLK12TONAME(SDLK12_KP_MULTIPLY, "[*]");

  1646 	    CASESDLK12TONAME(SDLK12_KP_MINUS, "[-]");

  1647 	    CASESDLK12TONAME(SDLK12_KP_PLUS, "[+]");

  1648 	    CASESDLK12TONAME(SDLK12_KP_ENTER, "enter");

  1649 	    CASESDLK12TONAME(SDLK12_KP_EQUALS, "equals");

  1651 	    CASESDLK12TONAME(SDLK12_UP, "up");

  1652 	    CASESDLK12TONAME(SDLK12_DOWN, "down");

  1653 	    CASESDLK12TONAME(SDLK12_RIGHT, "right");

  1654 	    CASESDLK12TONAME(SDLK12_LEFT, "left");

  1655 	    CASESDLK12TONAME(SDLK12_INSERT, "insert");

  1656 	    CASESDLK12TONAME(SDLK12_HOME, "home");

  1657 	    CASESDLK12TONAME(SDLK12_END, "end");

  1658 	    CASESDLK12TONAME(SDLK12_PAGEUP, "page up");

  1659 	    CASESDLK12TONAME(SDLK12_PAGEDOWN, "page down");

  1661 	    CASESDLK12TONAME(SDLK12_F1, "f1");

  1662 	    CASESDLK12TONAME(SDLK12_F2, "f2");

  1663 	    CASESDLK12TONAME(SDLK12_F3, "f3");

  1664 	    CASESDLK12TONAME(SDLK12_F4, "f4");

  1665 	    CASESDLK12TONAME(SDLK12_F5, "f5");

  1666 	    CASESDLK12TONAME(SDLK12_F6, "f6");

  1667 	    CASESDLK12TONAME(SDLK12_F7, "f7");

  1668 	    CASESDLK12TONAME(SDLK12_F8, "f8");

  1669 	    CASESDLK12TONAME(SDLK12_F9, "f9");

  1670 	    CASESDLK12TONAME(SDLK12_F10, "f10");

  1671 	    CASESDLK12TONAME(SDLK12_F11, "f11");

  1672 	    CASESDLK12TONAME(SDLK12_F12, "f12");

  1673 	    CASESDLK12TONAME(SDLK12_F13, "f13");

  1674 	    CASESDLK12TONAME(SDLK12_F14, "f14");

  1675 	    CASESDLK12TONAME(SDLK12_F15, "f15");

  1677 	    CASESDLK12TONAME(SDLK12_NUMLOCK, "numlock");

  1678 	    CASESDLK12TONAME(SDLK12_CAPSLOCK, "caps lock");

  1679 	    CASESDLK12TONAME(SDLK12_SCROLLOCK, "scroll lock");

  1680 	    CASESDLK12TONAME(SDLK12_RSHIFT, "right shift");

  1681 	    CASESDLK12TONAME(SDLK12_LSHIFT, "left shift");

  1682 	    CASESDLK12TONAME(SDLK12_RCTRL, "right ctrl");

  1683 	    CASESDLK12TONAME(SDLK12_LCTRL, "left ctrl");

  1684 	    CASESDLK12TONAME(SDLK12_RALT, "right alt");

  1685 	    CASESDLK12TONAME(SDLK12_LALT, "left alt");

  1686 	    CASESDLK12TONAME(SDLK12_RMETA, "right meta");

  1687 	    CASESDLK12TONAME(SDLK12_LMETA, "left meta");

  1688 	    CASESDLK12TONAME(SDLK12_LSUPER, "left super");	/* "Windows" keys */

  1689 	    CASESDLK12TONAME(SDLK12_RSUPER, "right super");

  1690 	    CASESDLK12TONAME(SDLK12_MODE, "alt gr");

  1691 	    CASESDLK12TONAME(SDLK12_COMPOSE, "compose");

  1693 	    CASESDLK12TONAME(SDLK12_HELP, "help");

  1694 	    CASESDLK12TONAME(SDLK12_PRINT, "print screen");

  1695 	    CASESDLK12TONAME(SDLK12_SYSREQ, "sys req");

  1696 	    CASESDLK12TONAME(SDLK12_BREAK, "break");

  1697 	    CASESDLK12TONAME(SDLK12_MENU, "menu");

  1698 	    CASESDLK12TONAME(SDLK12_POWER, "power");

  1699 	    CASESDLK12TONAME(SDLK12_EURO, "euro");

  1700 	    CASESDLK12TONAME(SDLK12_UNDO, "undo");

  1701         #undef CASESDLK12TONAME

  1702         default: break;

  1703     }

  1705     return (char *) "unknown key";

  1706 }

  1708 static SDL12Key

  1709 Keysym20to12(const SDL_Keycode keysym20)

  1710 {

  1711     if ( ((int) keysym20) < 127 ) {  /* (most of) low-ASCII maps directly */

  1712         if (keysym20 == SDLK_PAUSE) {

  1713             return SDLK12_PAUSE;

  1714         } else if (keysym20 == SDLK_CLEAR) {

  1715             return SDLK12_CLEAR;

  1716         }

  1717         return (SDL12Key) keysym20;

  1718     }

  1720     switch (keysym20) {

  1721         #define CASEKEYSYM20TO12(k20, k12) case SDLK_##k20: return SDLK12_##k12

  1722         CASEKEYSYM20TO12(KP_0, KP0);

  1723         CASEKEYSYM20TO12(KP_1, KP1);

  1724         CASEKEYSYM20TO12(KP_2, KP2);

  1725         CASEKEYSYM20TO12(KP_3, KP3);

  1726         CASEKEYSYM20TO12(KP_4, KP4);

  1727         CASEKEYSYM20TO12(KP_5, KP5);

  1728         CASEKEYSYM20TO12(KP_6, KP6);

  1729         CASEKEYSYM20TO12(KP_7, KP7);

  1730         CASEKEYSYM20TO12(KP_8, KP8);

  1731         CASEKEYSYM20TO12(KP_9, KP9);

  1732         CASEKEYSYM20TO12(NUMLOCKCLEAR, NUMLOCK);

  1733         CASEKEYSYM20TO12(SCROLLLOCK, SCROLLOCK);

  1734         CASEKEYSYM20TO12(RGUI, RMETA);

  1735         CASEKEYSYM20TO12(LGUI, LMETA);

  1736         CASEKEYSYM20TO12(PRINTSCREEN, PRINT);

  1737         #undef CASEKEYSYM20TO12

  1739         #define CASEKEYSYM20TO12(k) case SDLK_##k: return SDLK12_##k

  1740         CASEKEYSYM20TO12(CLEAR);

  1741         CASEKEYSYM20TO12(PAUSE);

  1742         CASEKEYSYM20TO12(KP_PERIOD);

  1743         CASEKEYSYM20TO12(KP_DIVIDE);

  1744         CASEKEYSYM20TO12(KP_MULTIPLY);

  1745         CASEKEYSYM20TO12(KP_MINUS);

  1746         CASEKEYSYM20TO12(KP_PLUS);

  1747         CASEKEYSYM20TO12(KP_ENTER);

  1748         CASEKEYSYM20TO12(KP_EQUALS);

  1749         CASEKEYSYM20TO12(UP);

  1750         CASEKEYSYM20TO12(DOWN);

  1751         CASEKEYSYM20TO12(RIGHT);

  1752         CASEKEYSYM20TO12(LEFT);

  1753         CASEKEYSYM20TO12(INSERT);

  1754         CASEKEYSYM20TO12(HOME);

  1755         CASEKEYSYM20TO12(END);

  1756         CASEKEYSYM20TO12(PAGEUP);

  1757         CASEKEYSYM20TO12(PAGEDOWN);

  1758         CASEKEYSYM20TO12(F1);

  1759         CASEKEYSYM20TO12(F2);

  1760         CASEKEYSYM20TO12(F3);

  1761         CASEKEYSYM20TO12(F4);

  1762         CASEKEYSYM20TO12(F5);

  1763         CASEKEYSYM20TO12(F6);

  1764         CASEKEYSYM20TO12(F7);

  1765         CASEKEYSYM20TO12(F8);

  1766         CASEKEYSYM20TO12(F9);

  1767         CASEKEYSYM20TO12(F10);

  1768         CASEKEYSYM20TO12(F11);

  1769         CASEKEYSYM20TO12(F12);

  1770         CASEKEYSYM20TO12(F13);

  1771         CASEKEYSYM20TO12(F14);

  1772         CASEKEYSYM20TO12(F15);

  1773         CASEKEYSYM20TO12(CAPSLOCK);

  1774         CASEKEYSYM20TO12(RSHIFT);

  1775         CASEKEYSYM20TO12(LSHIFT);

  1776         CASEKEYSYM20TO12(RCTRL);

  1777         CASEKEYSYM20TO12(LCTRL);

  1778         CASEKEYSYM20TO12(RALT);

  1779         CASEKEYSYM20TO12(LALT);

  1780         CASEKEYSYM20TO12(MODE);

  1781         CASEKEYSYM20TO12(HELP);

  1782         CASEKEYSYM20TO12(SYSREQ);;

  1783         CASEKEYSYM20TO12(MENU);

  1784         CASEKEYSYM20TO12(POWER);

  1785         CASEKEYSYM20TO12(UNDO);

  1786         #undef CASEKEYSYM20TO12

  1787         default: break;

  1788     }

  1790     FIXME("nothing maps to SDLK12_COMPOSE, SDLK12_BREAK, or SDLK12_EURO ...?");

  1791     FIXME("map some of the SDLK12_WORLD keys");

  1792     return SDLK12_UNKNOWN;

  1793 }

  1795 static int

  1796 EventFilter20to12(void *data, SDL_Event *event20)

  1797 {

  1798     //const int maxUserEvents12 = SDL12_NUMEVENTS - SDL12_USEREVENT;

  1799     SDL12_Event event12;

  1800     int x, y;

  1802     SDL_assert(data == NULL);  /* currently unused. */

  1804     SDL20_zero(event12);

  1806     switch (event20->type)

  1807     {

  1808         case SDL_QUIT:

  1809             event12.type = SDL12_QUIT;

  1810             break;

  1812         case SDL_WINDOWEVENT:

  1813             switch (event20->window.event)

  1814             {

  1815                 case SDL_WINDOWEVENT_CLOSE:

  1816                     event12.type = SDL12_QUIT;

  1817                     break;

  1819                 case SDL_WINDOWEVENT_SHOWN:

  1820                 case SDL_WINDOWEVENT_EXPOSED:

  1821                     event12.type = SDL12_VIDEOEXPOSE;

  1822                     break;

  1824                 case SDL_WINDOWEVENT_RESIZED:

  1825                 case SDL_WINDOWEVENT_SIZE_CHANGED:

  1826                     FIXME("what's the difference between RESIZED and SIZE_CHANGED?");

  1827                     event12.type = SDL12_VIDEORESIZE;

  1828                     event12.resize.w = event20->window.data1;

  1829                     event12.resize.h = event20->window.data2;

  1830                     break;

  1832                 case SDL_WINDOWEVENT_MINIMIZED:

  1833                     event12.type = SDL12_ACTIVEEVENT;

  1834                     event12.active.gain = 0;

  1835                     event12.active.state = SDL12_APPACTIVE;

  1836                     break;

  1838                 case SDL_WINDOWEVENT_RESTORED:

  1839                     event12.type = SDL12_ACTIVEEVENT;

  1840                     event12.active.gain = 1;

  1841                     event12.active.state = SDL12_APPACTIVE;

  1842                     break;

  1844                 case SDL_WINDOWEVENT_ENTER:

  1845                     event12.type = SDL12_ACTIVEEVENT;

  1846                     event12.active.gain = 1;

  1847                     event12.active.state = SDL12_APPMOUSEFOCUS;

  1848                     break;

  1850                 case SDL_WINDOWEVENT_LEAVE:

  1851                     event12.type = SDL12_ACTIVEEVENT;

  1852                     event12.active.gain = 0;

  1853                     event12.active.state = SDL12_APPMOUSEFOCUS;

  1854                     break;

  1856                 case SDL_WINDOWEVENT_FOCUS_GAINED:

  1857                     event12.type = SDL12_ACTIVEEVENT;

  1858                     event12.active.gain = 1;

  1859                     event12.active.state = SDL12_APPINPUTFOCUS;

  1860                     break;

  1862                 case SDL_WINDOWEVENT_FOCUS_LOST:

  1863                     event12.type = SDL12_ACTIVEEVENT;

  1864                     event12.active.gain = 0;

  1865                     event12.active.state = SDL12_APPINPUTFOCUS;

  1866                     break;

  1867             }

  1868             break;

  1870         // !!! FIXME: this is sort of a mess to convert.

  1871         case SDL_SYSWMEVENT: FIXME("write me"); return 0;

  1873         case SDL_KEYUP:

  1874         case SDL_KEYDOWN:

  1875             if (event20->key.repeat) {

  1876                 return 0;  /* ignore 2.0-style key repeat events */

  1877             }

  1878             event12.key.keysym.sym = Keysym20to12(event20->key.keysym.sym);

  1879             if (event12.key.keysym.sym == SDLK12_UNKNOWN) {

  1880                 return 0;  /* drop it if we can't map it */

  1881             }

  1882             event12.type = (event20->type == SDL_KEYDOWN) ? SDL12_KEYDOWN : SDL12_KEYUP;

  1883             event12.key.which = 0;

  1884             event12.key.state = event20->key.state;

  1885             event12.key.keysym.scancode = (event20->key.keysym.scancode < 256) ? (Uint8) event20->key.keysym.scancode : 0;

  1886             event12.key.keysym.mod = event20->key.keysym.mod;  /* these match up between 1.2 and 2.0! */

  1887             event12.key.keysym.unicode = 0;  FIXME("unicode");

  1888             break;

  1890         case SDL_TEXTEDITING: FIXME("write me"); return 0;

  1891         case SDL_TEXTINPUT: FIXME("write me"); return 0;

  1893         case SDL_MOUSEMOTION:

  1894         	event12.type = SDL12_MOUSEMOTION;

  1895             event12.motion.which = (Uint8) event20->motion.which;

  1896             event12.motion.state = event20->motion.state;

  1897             event12.motion.x = (Uint16) event20->motion.x;

  1898             event12.motion.y = (Uint16) event20->motion.y;

  1899             event12.motion.xrel = (Sint16) event20->motion.xrel;

  1900             event12.motion.yrel = (Sint16) event20->motion.yrel;

  1901             break;

  1903         case SDL_MOUSEBUTTONDOWN:

  1904         	event12.type = SDL12_MOUSEBUTTONDOWN;

  1905             event12.button.which = (Uint8) event20->button.which;

  1906             event12.button.button = event20->button.button;

  1907             event12.button.state = event20->button.state;

  1908             event12.button.x = (Uint16) event20->button.x;

  1909             event12.button.y = (Uint16) event20->button.y;

  1910             break;

  1912         case SDL_MOUSEBUTTONUP:

  1913         	event12.type = SDL12_MOUSEBUTTONUP;

  1914             event12.button.which = (Uint8) event20->button.which;

  1915             event12.button.button = event20->button.button;

  1916             event12.button.state = event20->button.state;

  1917             event12.button.x = (Uint16) event20->button.x;

  1918             event12.button.y = (Uint16) event20->button.y;

  1919             break;

  1921         case SDL_MOUSEWHEEL:

  1922             if (event20->wheel.y == 0)

  1923                 break;  /* don't support horizontal wheels in 1.2. */

  1925             event12.type = SDL12_MOUSEBUTTONDOWN;

  1926             event12.button.which = (Uint8) event20->wheel.which;

  1927             event12.button.button = (event20->wheel.y > 0) ? 4 : 5;  /* wheelup is 4, down is 5. */

  1928             event12.button.state = SDL_GetMouseState(&x, &y);

  1929             event12.button.x = (Uint16) x;

  1930             event12.button.y = (Uint16) y;

  1931             PushEventIfNotFiltered(&event12);

  1933             event12.type = SDL12_MOUSEBUTTONUP;  /* immediately release mouse "button" at the end of this switch. */

  1934             break;

  1936         case SDL_JOYAXISMOTION:

  1937             event12.type = SDL12_JOYAXISMOTION;

  1938             event12.jaxis.which = (Uint8) event20->jaxis.which;

  1939             event12.jaxis.axis = event20->jaxis.axis;

  1940             event12.jaxis.value = event20->jaxis.value;

  1941             break;

  1943         case SDL_JOYBALLMOTION:

  1944             event12.type = SDL12_JOYBALLMOTION;

  1945             event12.jball.which = (Uint8) event20->jball.which;

  1946             event12.jball.ball = event20->jball.ball;

  1947             event12.jball.xrel = event20->jball.xrel;

  1948             event12.jball.yrel = event20->jball.yrel;

  1949             break;

  1951         case SDL_JOYHATMOTION:

  1952             event12.type = SDL12_JOYHATMOTION;

  1953             event12.jhat.which = (Uint8) event20->jhat.which;

  1954             event12.jhat.hat = event20->jhat.hat;

  1955             event12.jhat.value = event20->jhat.value;

  1956             break;

  1958         case SDL_JOYBUTTONDOWN:

  1959             event12.type = SDL12_JOYBUTTONDOWN;

  1960             event12.jbutton.which = (Uint8) event20->jbutton.which;

  1961             event12.jbutton.button = event20->jbutton.button;

  1962             event12.jbutton.state = event20->jbutton.state;

  1963             break;

  1965         case SDL_JOYBUTTONUP:

  1966             event12.type = SDL12_JOYBUTTONUP;

  1967             event12.jbutton.which = (Uint8) event20->jbutton.which;

  1968             event12.jbutton.button = event20->jbutton.button;

  1969             event12.jbutton.state = event20->jbutton.state;

  1970             break;

  1972         //case SDL_JOYDEVICEADDED:

  1973         //case SDL_JOYDEVICEREMOVED:

  1974 	    //case SDL_CONTROLLERAXISMOTION:

  1975 	    //case SDL_CONTROLLERBUTTONDOWN:

  1976 	    //case SDL_CONTROLLERBUTTONUP:

  1977 	    //case SDL_CONTROLLERDEVICEADDED:

  1978 	    //case SDL_CONTROLLERDEVICEREMOVED:

  1979 	    //case SDL_CONTROLLERDEVICEREMAPPED:

  1980         //case SDL_FINGERDOWN:

  1981         //case SDL_FINGERUP:

  1982         //case SDL_FINGERMOTION:

  1983         //case SDL_DOLLARGESTURE:

  1984         //case SDL_DOLLARRECORD:

  1985         //case SDL_MULTIGESTURE:

  1986         //case SDL_CLIPBOARDUPDATE:

  1987         //case SDL_DROPFILE:

  1989         default:

  1990             return 0;  /* drop everything else. */

  1991     }

  1993     PushEventIfNotFiltered(&event12);

  1995     return 0;  /* always drop it from the 2.0 event queue. */

  1996 }

  1998 DECLSPEC void SDLCALL

  1999 SDL_SetEventFilter(SDL12_EventFilter filter12)

  2000 {

  2001     /* We always have a filter installed, but will call the app's too. */

  2002     EventFilter12 = filter12;

  2003 }

  2005 DECLSPEC SDL12_EventFilter SDLCALL

  2006 SDL_GetEventFilter(void)

  2007 {

  2008     return EventFilter12;

  2009 }

  2012 static SDL12_Rect *

  2013 Rect20to12(const SDL_Rect *rect20, SDL12_Rect *rect12)

  2014 {

  2015     rect12->x = (Sint16) rect20->x;

  2016     rect12->y = (Sint16) rect20->y;

  2017     rect12->w = (Uint16) rect20->w;

  2018     rect12->h = (Uint16) rect20->h;

  2019     return rect12;

  2020 }

  2022 static SDL_Rect *

  2023 Rect12to20(const SDL12_Rect *rect12, SDL_Rect *rect20)

  2024 {

  2025     rect20->x = (int) rect12->x;

  2026     rect20->y = (int) rect12->y;

  2027     rect20->w = (int) rect12->w;

  2028     rect20->h = (int) rect12->h;

  2029     return rect20;

  2030 }

  2032 static SDL12_Surface *

  2033 Surface20to12(SDL_Surface *surface20)

  2034 {

  2035     SDL12_Surface *surface12 = NULL;

  2036     SDL12_Palette *palette12 = NULL;

  2037     SDL12_PixelFormat *format12 = NULL;

  2038     Uint32 flags = 0;

  2040     if (!surface20)

  2041         return NULL;

  2043     surface12 = (SDL12_Surface *) SDL20_malloc(sizeof (SDL12_Surface));

  2044     if (!surface12)

  2045         goto failed;

  2047     if (surface20->format->palette) {

  2048         palette12 = (SDL12_Palette *) SDL20_malloc(sizeof (SDL12_Palette));

  2049         if (!palette12)

  2050             goto failed;

  2051     }

  2053     format12 = (SDL12_PixelFormat *) SDL20_malloc(sizeof (SDL12_PixelFormat));

  2054     if (!format12)

  2055         goto failed;

  2057     if (palette12) {

  2058         SDL20_zerop(palette12);

  2059         SDL_assert(surface20->format->palette);

  2060         palette12->ncolors = surface20->format->palette->ncolors;

  2061         palette12->colors = surface20->format->palette->colors;

  2062     }

  2064     SDL20_zerop(format12);

  2065     format12->palette = palette12;

  2066     format12->BitsPerPixel = surface20->format->BitsPerPixel;

  2067     format12->BytesPerPixel = surface20->format->BytesPerPixel;

  2068     format12->Rloss = surface20->format->Rloss;

  2069     format12->Gloss = surface20->format->Gloss;

  2070     format12->Bloss = surface20->format->Bloss;

  2071     format12->Aloss = surface20->format->Aloss;

  2072     format12->Rshift = surface20->format->Rshift;

  2073     format12->Gshift = surface20->format->Gshift;

  2074     format12->Bshift = surface20->format->Bshift;

  2075     format12->Ashift = surface20->format->Ashift;

  2076     format12->Rmask = surface20->format->Rmask;

  2077     format12->Gmask = surface20->format->Gmask;

  2078     format12->Bmask = surface20->format->Bmask;

  2079     format12->Amask = surface20->format->Amask;

  2080     FIXME("format12->colorkey");

  2081     FIXME("format12->alpha");

  2083     SDL20_zerop(surface12);

  2084     flags = surface20->flags;

  2085     #ifdef SDL_SIMD_ALIGNED

  2086     flags &= ~SDL_SIMD_ALIGNED;  /* we don't need to map this to 1.2 */

  2087     #endif

  2088     #define MAPSURFACEFLAGS(fl) { if (surface20->flags & SDL_##fl) { surface12->flags |= SDL12_##fl; flags &= ~SDL_##fl; } }

  2089     MAPSURFACEFLAGS(PREALLOC);

  2090     MAPSURFACEFLAGS(RLEACCEL);

  2091     /*MAPSURFACEFLAGS(DONTFREE);*/

  2092     #undef MAPSURFACEFLAGS

  2093     SDL_assert(flags == 0);  /* non-zero if there's a flag we didn't map. */

  2095     surface12->format = format12;

  2096     surface12->w = surface20->w;

  2097     surface12->h = surface20->h;

  2098     surface12->pitch = (Uint16) surface20->pitch;  FIXME("make sure this fits in a Uint16");

  2099     surface12->pixels = surface20->pixels;

  2100     surface12->offset = 0;

  2101     surface12->surface20 = surface20;

  2102     Rect20to12(&surface20->clip_rect, &surface12->clip_rect);

  2103     surface12->refcount = surface20->refcount;

  2105     return surface12;

  2107 failed:

  2108     SDL20_free(surface12);

  2109     SDL20_free(palette12);

  2110     SDL20_free(format12);

  2111     return NULL;

  2112 }

  2114 DECLSPEC SDL12_Surface * SDLCALL

  2115 SDL_CreateRGBSurface(Uint32 sdl12flags, int width, int height, int depth, Uint32 Rmask, Uint32 Gmask, Uint32 Bmask, Uint32 Amask)

  2116 {

  2117     if (depth == 8) {

  2118         Rmask = Gmask = Bmask = Amask = 0;  // force a paletted surface.

  2119     }

  2120     SDL_Surface *surface20 = SDL20_CreateRGBSurface(0, width, height, depth, Rmask, Gmask, Bmask, Amask);

  2121     SDL12_Surface *surface12 = Surface20to12(surface20);

  2122     if (!surface12) {

  2123         SDL20_FreeSurface(surface20);

  2124         return NULL;

  2125     }

  2127     SDL_assert(surface12->flags == 0);  // shouldn't have prealloc, rleaccel, or dontfree.

  2128     return surface12;

  2129 }

  2131 DECLSPEC SDL12_Surface * SDLCALL

  2132 SDL_CreateRGBSurfaceFrom(void *pixels, int width, int height, int depth, int pitch, Uint32 Rmask, Uint32 Gmask, Uint32 Bmask, Uint32 Amask)

  2133 {

  2134     if (depth == 8) {

  2135         Rmask = Gmask = Bmask = Amask = 0;  // force a paletted surface.

  2136     }

  2137     SDL_Surface *surface20 = SDL20_CreateRGBSurfaceFrom(pixels, width, height, depth, pitch, Rmask, Gmask, Bmask, Amask);

  2138     SDL12_Surface *surface12 = Surface20to12(surface20);

  2139     if (!surface12) {

  2140         SDL20_FreeSurface(surface20);

  2141         return NULL;

  2142     }

  2144     SDL_assert(surface12->flags == SDL12_PREALLOC);  // should _only_ have prealloc.

  2145     return surface12;

  2146 }

  2148 DECLSPEC void SDLCALL

  2149 SDL_FreeSurface(SDL12_Surface *surface12)

  2150 {

  2151     if (surface12) {

  2152         SDL20_FreeSurface(surface12->surface20);

  2153         if (surface12->format) {

  2154             SDL20_free(surface12->format->palette);

  2155             SDL20_free(surface12->format);

  2156         }

  2157         SDL20_free(surface12);

  2158     }

  2159 }

  2161 DECLSPEC void SDLCALL

  2162 SDL_GetClipRect(SDL12_Surface *surface12, SDL12_Rect *rect)

  2163 {

  2164     if (surface12 && rect) {

  2165         SDL_memcpy(rect, &surface12->clip_rect, sizeof (SDL12_Rect));

  2166     }

  2167 }

  2169 DECLSPEC SDL_bool SDLCALL

  2170 SDL_SetClipRect(SDL12_Surface *surface12, const SDL12_Rect *rect12)

  2171 {

  2172     SDL_bool retval = SDL_FALSE;

  2173     if (surface12)

  2174     {

  2175         SDL_Rect rect20;

  2176         retval = SDL20_SetClipRect(surface12->surface20, rect12 ? Rect12to20(rect12, &rect20) : NULL);

  2177         SDL20_GetClipRect(surface12->surface20, &rect20);

  2178         Rect20to12(&rect20, &surface12->clip_rect);

  2179     }

  2180     return retval;

  2181 }

  2183 DECLSPEC int SDLCALL

  2184 SDL_FillRect(SDL12_Surface *dst, SDL12_Rect *dstrect12, Uint32 color)

  2185 {

  2186     SDL_Rect dstrect20;

  2187     const int retval = SDL20_FillRect(dst->surface20, dstrect12 ? Rect12to20(dstrect12, &dstrect20) : NULL, color);

  2188     if (retval != -1)

  2189     {

  2190         if (dstrect12) {  /* 1.2 stores the clip intersection in dstrect */

  2191             SDL_Rect intersected20;

  2192             SDL20_IntersectRect(&dstrect20, &dst->surface20->clip_rect, &intersected20);

  2193             Rect20to12(&intersected20, dstrect12);

  2194         }

  2195     }

  2196     return retval;

  2197 }

  2200 static SDL_PixelFormat *

  2201 PixelFormat12to20(SDL_PixelFormat *format20, SDL_Palette *palette20, const SDL12_PixelFormat *format12)

  2202 {

  2203     if (format12->palette) {

  2204         palette20->ncolors = format12->palette->ncolors;

  2205         palette20->colors = format12->palette->colors;

  2206         palette20->version = 1;

  2207         palette20->refcount = 1;

  2208         format20->palette = palette20;

  2209     } else {

  2210         format20->palette = NULL;

  2211     }

  2213     format20->format = SDL20_MasksToPixelFormatEnum(format12->BitsPerPixel, format12->Rmask, format12->Gmask, format12->Bmask, format12->Amask);

  2214     format20->BitsPerPixel = format12->BitsPerPixel;

  2215     format20->BytesPerPixel = format12->BytesPerPixel;

  2216     format20->Rmask = format12->Rmask;

  2217     format20->Gmask = format12->Gmask;

  2218     format20->Bmask = format12->Bmask;

  2219     format20->Amask = format12->Amask;

  2220     format20->Rloss = format12->Rloss;

  2221     format20->Gloss = format12->Gloss;

  2222     format20->Bloss = format12->Bloss;

  2223     format20->Aloss = format12->Aloss;

  2224     format20->Rshift = format12->Rshift;

  2225     format20->Gshift = format12->Gshift;

  2226     format20->Bshift = format12->Bshift;

  2227     format20->Ashift = format12->Ashift;

  2228     format20->refcount = 1;

  2229     format20->next = NULL;

  2230     return format20;

  2231 }

  2233 DECLSPEC Uint32 SDLCALL

  2234 SDL_MapRGB(const SDL12_PixelFormat *format12, Uint8 r, Uint8 g, Uint8 b)

  2235 {

  2236     /* This is probably way slower than apps expect. */

  2237     SDL_PixelFormat format20;

  2238     SDL_Palette palette20;

  2239     return SDL20_MapRGB(PixelFormat12to20(&format20, &palette20, format12), r, g, b);

  2240 }

  2242 DECLSPEC Uint32 SDLCALL

  2243 SDL_MapRGBA(const SDL12_PixelFormat *format12, Uint8 r, Uint8 g, Uint8 b, Uint8 a)

  2244 {

  2245     /* This is probably way slower than apps expect. */

  2246     SDL_PixelFormat format20;

  2247     SDL_Palette palette20;

  2248     return SDL20_MapRGBA(PixelFormat12to20(&format20, &palette20, format12), r, g, b, a);

  2249 }

  2251 DECLSPEC void SDLCALL

  2252 SDL_GetRGB(Uint32 pixel, const SDL12_PixelFormat *format12, Uint8 *r, Uint8 *g, Uint8 *b)

  2253 {

  2254     /* This is probably way slower than apps expect. */

  2255     SDL_PixelFormat format20;

  2256     SDL_Palette palette20;

  2257     return SDL20_GetRGB(pixel, PixelFormat12to20(&format20, &palette20, format12), r, g, b);

  2258 }

  2260 DECLSPEC void SDLCALL

  2261 SDL_GetRGBA(Uint32 pixel, const SDL12_PixelFormat *format12, Uint8 *r, Uint8 *g, Uint8 *b, Uint8 *a)

  2262 {

  2263     /* This is probably way slower than apps expect. */

  2264     SDL_PixelFormat format20;

  2265     SDL_Palette palette20;

  2266     return SDL20_GetRGBA(pixel, PixelFormat12to20(&format20, &palette20, format12), r, g, b, a);

  2267 }

  2269 DECLSPEC const SDL12_VideoInfo * SDLCALL

  2270 SDL_GetVideoInfo(void)

  2271 {

  2272     SDL_DisplayMode mode;

  2274     FIXME("calculate this in Init12Video(), then this just does: return VideoInfo.vfmt ? &VideoInfo : NULL;");

  2276     if (!VideoInfo12.vfmt && SDL20_GetDesktopDisplayMode(VideoDisplayIndex, &mode) == 0) {

  2277         VideoInfo12.vfmt = SDL20_AllocFormat(mode.format);

  2278         VideoInfo12.current_w = mode.w;

  2279         VideoInfo12.current_h = mode.h;

  2280         FIXME("vidinfo details commented out");

  2281         //VideoInfo12.wm_available = 1;

  2282         //VideoInfo12.video_mem = 1024 * 256;

  2283     }

  2284     return &VideoInfo12;

  2285 }

  2287 DECLSPEC int SDLCALL

  2288 SDL_VideoModeOK(int width, int height, int bpp, Uint32 sdl12flags)

  2289 {

  2290     int i, nummodes, actual_bpp = 0;

  2292     if (!SDL20_WasInit(SDL_INIT_VIDEO)) {

  2293         return 0;

  2294     }

  2296     if (!(sdl12flags & SDL12_FULLSCREEN)) {

  2297         SDL_DisplayMode mode;

  2298         SDL20_GetDesktopDisplayMode(VideoDisplayIndex, &mode);

  2299         return SDL_BITSPERPIXEL(mode.format);

  2300     }

  2302     nummodes = SDL20_GetNumDisplayModes(VideoDisplayIndex);

  2303     for (i = 0; i < nummodes; ++i) {

  2304         SDL_DisplayMode mode;

  2305         SDL20_GetDisplayMode(VideoDisplayIndex, i, &mode);

  2306         if (!mode.w || !mode.h || (width == mode.w && height == mode.h)) {

  2307             if (!mode.format) {

  2308                 return bpp;

  2309             }

  2310             if (SDL_BITSPERPIXEL(mode.format) >= (Uint32) bpp) {

  2311                 actual_bpp = SDL_BITSPERPIXEL(mode.format);

  2312             }

  2313         }

  2314     }

  2315     return actual_bpp;

  2316 }

  2318 DECLSPEC SDL12_Rect ** SDLCALL

  2319 SDL_ListModes(const SDL12_PixelFormat *format12, Uint32 flags)

  2320 {

  2321     Uint32 fmt;

  2322     int i;

  2324     if (!SDL20_WasInit(SDL_INIT_VIDEO)) {

  2325         return NULL;

  2326     }

  2328     if ((!format12) && (!VideoInfo12.vfmt)) {

  2329         SDL20_SetError("No pixel format specified");

  2330         return NULL;

  2331     }

  2333     if (!(flags & SDL12_FULLSCREEN)) {

  2334         return (SDL12_Rect **) (-1);  /* any resolution is fine. */

  2335     }

  2337     if (format12) {

  2338         fmt = SDL20_MasksToPixelFormatEnum(format12->BitsPerPixel, format12->Rmask, format12->Gmask, format12->Bmask, format12->Amask);

  2339     } else {

  2340         fmt = VideoInfo12.vfmt->format;

  2341     }

  2343     for (i = 0; i < VideoModesCount; i++) {

  2344         VideoModeList *modes = &VideoModes[i];

  2345         if (modes->format == fmt) {

  2346             return modes->modes12;

  2347         }

  2348     }

  2350     SDL20_SetError("No modes support requested pixel format");

  2351     return NULL;

  2352 }

  2354 DECLSPEC void SDLCALL

  2355 SDL_FreeCursor(SDL12_Cursor *cursor12)

  2356 {

  2357     if (cursor12) {

  2358         if (cursor12->wm_cursor)

  2359             SDL20_FreeCursor(cursor12->wm_cursor);

  2360         SDL20_free(cursor12->data);

  2361         SDL20_free(cursor12->mask);

  2362         SDL20_free(cursor12);

  2363     }

  2364 }

  2366 DECLSPEC SDL12_Cursor * SDLCALL

  2367 SDL_CreateCursor(Uint8 *data, Uint8 *mask, int w, int h, int hot_x, int hot_y)

  2368 {

  2369     const size_t datasize = h * (w / 8);

  2370     SDL_Cursor *cursor20 = NULL;

  2371     SDL12_Cursor *retval = NULL;

  2373     retval = (SDL12_Cursor *) SDL20_malloc(sizeof (SDL12_Cursor));

  2374     if (!retval)

  2375         goto outofmem;

  2377     SDL20_zerop(retval);

  2379     retval->data = (Uint8 *) SDL20_malloc(datasize);

  2380     if (!retval->data)

  2381         goto outofmem;

  2383     retval->mask = (Uint8 *) SDL20_malloc(datasize);

  2384     if (!retval->mask)

  2385         goto outofmem;

  2387     cursor20 = SDL20_CreateCursor(data, mask, w, h, hot_x, hot_y);

  2388     if (!cursor20)

  2389         goto failed;

  2391     retval->area.w = w;

  2392     retval->area.h = h;

  2393     retval->hot_x = hot_x;

  2394     retval->hot_y = hot_y;

  2395     retval->wm_cursor = cursor20;

  2396     /* we always leave retval->save as null pointers. */

  2398     SDL20_memcpy(retval->data, data, datasize);

  2399     SDL20_memcpy(retval->mask, mask, datasize);

  2401     return retval;

  2403 outofmem:

  2404     SDL20_OutOfMemory();

  2406 failed:

  2407     SDL_FreeCursor(retval);

  2408     return NULL;

  2409 }

  2411 DECLSPEC void SDLCALL

  2412 SDL_SetCursor(SDL12_Cursor *cursor)

  2413 {

  2414     CurrentCursor12 = cursor;

  2415     SDL20_SetCursor(cursor ? cursor->wm_cursor : NULL);

  2416 }

  2418 DECLSPEC SDL12_Cursor * SDLCALL

  2419 SDL_GetCursor(void)

  2420 {

  2421     return CurrentCursor12;

  2422 }

  2424 static void

  2425 GetEnvironmentWindowPosition(int *x, int *y)

  2426 {

  2427     int display = VideoDisplayIndex;

  2428     const char *window = SDL20_getenv("SDL_VIDEO_WINDOW_POS");

  2429     const char *center = SDL20_getenv("SDL_VIDEO_CENTERED");

  2430     if (window) {

  2431         if (SDL20_strcmp(window, "center") == 0) {

  2432             center = window;

  2433         } else if (SDL20_sscanf(window, "%d,%d", x, y) == 2) {

  2434             return;

  2435         }

  2436     }

  2438     if (center) {

  2439         *x = SDL_WINDOWPOS_CENTERED_DISPLAY(display);

  2440         *y = SDL_WINDOWPOS_CENTERED_DISPLAY(display);

  2441     }

  2442 }

  2444 static void

  2445 SetupScreenSaver(const int flags12)

  2446 {

  2447     const char *env;

  2448     SDL_bool allow_screensaver;

  2450     /* Allow environment override of screensaver disable */

  2451     env = SDL20_getenv("SDL_VIDEO_ALLOW_SCREENSAVER");

  2452     if (env) {

  2453         allow_screensaver = SDL20_atoi(env) ? SDL_TRUE : SDL_FALSE;

  2454     } else if (flags12 & SDL12_FULLSCREEN) {

  2455         allow_screensaver = SDL_FALSE;

  2456     } else {

  2457         allow_screensaver = SDL_TRUE;

  2458     }

  2459     if (allow_screensaver) {

  2460         SDL20_EnableScreenSaver();

  2461     } else {

  2462         SDL20_DisableScreenSaver();

  2463     }

  2464 }

  2467 static SDL12_Surface *

  2468 EndVidModeCreate(void)

  2469 {

  2470     if (VideoTexture20) {

  2471         SDL20_DestroyTexture(VideoTexture20);

  2472         VideoTexture20 = NULL;

  2473     }

  2474     if (VideoRenderer20) {

  2475         SDL20_DestroyRenderer(VideoRenderer20);

  2476         VideoRenderer20 = NULL;

  2477     }

  2478     if (VideoGLContext20) {

  2479         SDL20_GL_MakeCurrent(NULL, NULL);

  2480         SDL20_GL_DeleteContext(VideoGLContext20);

  2481         VideoGLContext20 = NULL;

  2482     }

  2483     if (VideoWindow20) {

  2484         SDL20_DestroyWindow(VideoWindow20);

  2485         VideoWindow20 = NULL;

  2486     }

  2487     if (VideoSurface12) {

  2488         SDL20_free(VideoSurface12->pixels);

  2489         VideoSurface12->pixels = NULL;

  2490         SDL_FreeSurface(VideoSurface12);

  2491         VideoSurface12 = NULL;

  2492     }

  2493     if (VideoConvertSurface20) {

  2494         SDL20_FreeSurface(VideoConvertSurface20);

  2495         VideoConvertSurface20 = NULL;

  2496     }

  2497     return NULL;

  2498 }

  2501 static SDL12_Surface *

  2502 CreateSurface12WithFormat(const int w, const int h, const Uint32 fmt)

  2503 {

  2504     Uint32 rmask, gmask, bmask, amask;

  2505     int bpp;

  2506     if (!SDL20_PixelFormatEnumToMasks(fmt, &bpp, &rmask, &gmask, &bmask, &amask)) {

  2507         return NULL;

  2508     }

  2509     return SDL_CreateRGBSurface(0, w, h, bpp, rmask, gmask, bmask, amask);

  2510 }

  2512 static SDL_Surface *

  2513 CreateNullPixelSurface20(const int width, const int height, const Uint32 fmt)

  2514 {

  2515     SDL_Surface *surface20 = SDL20_CreateRGBSurfaceWithFormat(0, 0, 0, SDL_BITSPERPIXEL(fmt), fmt);

  2516     if (surface20) {

  2517         surface20->flags |= SDL_PREALLOC;

  2518         surface20->pixels = NULL;

  2519         surface20->w = width;

  2520         surface20->h = height;

  2521         surface20->pitch = 0;

  2522         SDL20_SetClipRect(surface20, NULL);

  2523     }

  2524     return surface20;

  2525 }

  2528 DECLSPEC SDL12_Surface * SDLCALL

  2529 SDL_SetVideoMode(int width, int height, int bpp, Uint32 flags12)

  2530 {

  2531     FIXME("currently ignores SDL_WINDOWID, which we could use with SDL_CreateWindowFrom ...?");

  2532     SDL_DisplayMode dmode;

  2533     Uint32 fullscreen_flags20 = 0;

  2534     Uint32 appfmt;

  2536     /* SDL_SetVideoMode() implicitly inits if necessary. */

  2537     if (SDL20_WasInit(SDL_INIT_VIDEO) == 0) {

  2538         if (SDL20_Init(SDL_INIT_VIDEO) < 0) {

  2539             return NULL;

  2540         }

  2541     }

  2543     if ((flags12 & SDL12_OPENGLBLIT) == SDL12_OPENGLBLIT) {

  2544         FIXME("No OPENGLBLIT support at the moment");

  2545         SDL20_SetError("SDL_OPENGLBLIT is (currently) unsupported");

  2546         return NULL;

  2547     }

  2549     FIXME("handle SDL_ANYFORMAT");

  2551     if ((width < 0) || (height < 0)) {

  2552         SDL20_SetError("Invalid width or height");

  2553         return NULL;

  2554     }

  2556     FIXME("There's an environment variable to choose a display");

  2557     if (SDL20_GetCurrentDisplayMode(0, &dmode) < 0) {

  2558         return NULL;

  2559     }

  2561     if (width == 0) {

  2562         width = dmode.w;

  2563     }

  2565     if (height == 0) {

  2566         height = dmode.h;

  2567     }

  2569     if (bpp == 0) {

  2570         bpp = SDL_BITSPERPIXEL(dmode.format);

  2571     }

  2573     switch (bpp) {

  2574         case  8: appfmt = SDL_PIXELFORMAT_INDEX8; break;

  2575         case 16: appfmt = SDL_PIXELFORMAT_RGB565; FIXME("bgr instead of rgb?"); break;

  2576         case 24: appfmt = SDL_PIXELFORMAT_RGB24; FIXME("bgr instead of rgb?"); break;

  2577         case 32: appfmt = SDL_PIXELFORMAT_ARGB8888; FIXME("bgr instead of rgb?"); break;

  2578         default: SDL20_SetError("Unsupported bits-per-pixel"); return NULL;

  2579     }

  2581     SDL_assert((VideoSurface12 != NULL) == (VideoWindow20 != NULL));

  2583     FIXME("don't do anything if the window's dimensions, etc haven't changed.");

  2584     FIXME("we need to preserve VideoSurface12 (but not its pixels), I think...");

  2586     if ( VideoSurface12 && ((VideoSurface12->flags & SDL12_OPENGL) != (flags12 & SDL12_OPENGL)) ) {

  2587         EndVidModeCreate();  /* rebuild the window if moving to/from a GL context */

  2588     } else if ( VideoSurface12 && (VideoSurface12->surface20->format->format != appfmt)) {

  2589         EndVidModeCreate();  /* rebuild the window if changing pixel format */

  2590     } else if (VideoGLContext20) {

  2591         /* SDL 1.2 (infuriatingly!) destroys the GL context on each resize, so we will too */

  2592         SDL20_GL_MakeCurrent(NULL, NULL);

  2593         SDL20_GL_DeleteContext(VideoGLContext20);

  2594         VideoGLContext20 = NULL;

  2595     }

  2597     if (flags12 & SDL12_FULLSCREEN) {

  2598         // OpenGL tries to force the real resolution requested, but for

  2599         //  software rendering, we're just going to push it off onto the

  2600         //  GPU, so use FULLSCREEN_DESKTOP and logical scaling there.

  2601         FIXME("OpenGL will still expect letterboxing and centering if it didn't get an exact resolution match.");

  2602         if (flags12 & SDL12_OPENGL) {

  2603             fullscreen_flags20 |= SDL_WINDOW_FULLSCREEN;

  2604         } else {

  2605             fullscreen_flags20 |= SDL_WINDOW_FULLSCREEN_DESKTOP;

  2606         }

  2607     }

  2609     if (!VideoWindow20) {  /* create it */

  2610         int x = SDL_WINDOWPOS_UNDEFINED, y = SDL_WINDOWPOS_UNDEFINED;

  2611         Uint32 flags20 = fullscreen_flags20;

  2612         if (flags12 & SDL12_OPENGL) { flags20 |= SDL_WINDOW_OPENGL; }

  2613         if (flags12 & SDL12_RESIZABLE) { flags20 |= SDL_WINDOW_RESIZABLE; }

  2614         if (flags12 & SDL12_NOFRAME) { flags20 |= SDL_WINDOW_BORDERLESS; }

  2616         /* most platforms didn't check these environment variables, but the major

  2617            ones did (x11, windib, quartz), so we'll just offer it everywhere. */

  2618         GetEnvironmentWindowPosition(&x, &y);

  2620         VideoWindow20 = SDL20_CreateWindow(WindowTitle, x, y, width, height, flags20);

  2621         if (!VideoWindow20) {

  2622             return EndVidModeCreate();

  2623         }

  2624     } else {  /* resize it */

  2625         SDL20_SetWindowSize(VideoWindow20, width, height);

  2626         SDL20_SetWindowFullscreen(VideoWindow20, fullscreen_flags20);

  2627         SDL20_SetWindowBordered(VideoWindow20, (flags12 & SDL12_NOFRAME) ? SDL_FALSE : SDL_TRUE);

  2628         SDL20_SetWindowResizable(VideoWindow20, (flags12 & SDL12_RESIZABLE) ? SDL_TRUE : SDL_FALSE);

  2629     }

  2631     if (VideoSurface12) {

  2632         SDL20_free(VideoSurface12->pixels);

  2633     } else {

  2634         VideoSurface12 = CreateSurface12WithFormat(0, 0, appfmt);

  2635         if (!VideoSurface12) {

  2636             return EndVidModeCreate();

  2637         }

  2638     }

  2640     VideoSurface12->surface20->flags |= SDL_PREALLOC;

  2641     VideoSurface12->flags |= SDL12_PREALLOC;

  2642     VideoSurface12->pixels = VideoSurface12->surface20->pixels = NULL;

  2643     VideoSurface12->w = VideoSurface12->surface20->w = width;

  2644     VideoSurface12->h = VideoSurface12->surface20->h = height;

  2645     VideoSurface12->pitch = VideoSurface12->surface20->pitch = width * SDL_BYTESPERPIXEL(appfmt);

  2646     SDL_SetClipRect(VideoSurface12, NULL);

  2648     if (flags12 & SDL12_FULLSCREEN) {

  2649         VideoSurface12->flags |= SDL12_FULLSCREEN;

  2650     } else {

  2651         VideoSurface12->flags &= ~SDL12_FULLSCREEN;

  2652     }

  2654     if (flags12 & SDL12_OPENGL) {

  2655         SDL_assert(!VideoTexture20);  /* either a new window or we destroyed all this */

  2656         SDL_assert(!VideoRenderer20);

  2657         VideoGLContext20 = SDL20_GL_CreateContext(VideoWindow20);

  2658         if (!VideoGLContext20) {

  2659             return EndVidModeCreate();

  2660         }

  2662         VideoSurface12->flags |= SDL12_OPENGL;

  2663     } else {

  2664         /* always use a renderer for non-OpenGL windows. */

  2665         SDL_RendererInfo rinfo;

  2666         SDL_assert(!VideoGLContext20);  /* either a new window or we destroyed all this */

  2667         if (!VideoRenderer20) {

  2668             VideoRenderer20 = SDL20_CreateRenderer(VideoWindow20, -1, SDL_RENDERER_ACCELERATED|SDL_RENDERER_PRESENTVSYNC);

  2669         }

  2670         if (!VideoRenderer20) {

  2671             VideoRenderer20 = SDL20_CreateRenderer(VideoWindow20, -1, SDL_RENDERER_PRESENTVSYNC);

  2672         }

  2673         if (!VideoRenderer20) {

  2674             VideoRenderer20 = SDL20_CreateRenderer(VideoWindow20, -1, 0);

  2675         }

  2676         if (!VideoRenderer20) {

  2677             return EndVidModeCreate();

  2678         }

  2680         SDL20_RenderSetLogicalSize(VideoRenderer20, width, height);

  2681         SDL20_SetRenderDrawColor(VideoRenderer20, 0, 0, 0, 255);

  2682         SDL20_RenderClear(VideoRenderer20);

  2683         SDL20_RenderPresent(VideoRenderer20);

  2684         SDL20_SetRenderDrawColor(VideoRenderer20, 255, 255, 255, 255);

  2686         if (SDL20_GetRendererInfo(VideoRenderer20, &rinfo) < 0) {

  2687             return EndVidModeCreate();

  2688         }

  2690         if (VideoTexture20) {

  2691             SDL20_DestroyTexture(VideoTexture20);

  2692         }

  2694         if (VideoConvertSurface20) {

  2695             SDL20_FreeSurface(VideoConvertSurface20);

  2696             VideoConvertSurface20 = NULL;

  2697         }

  2699         VideoTexture20 = SDL20_CreateTexture(VideoRenderer20, rinfo.texture_formats[0], SDL_TEXTUREACCESS_STREAMING, width, height);

  2700         if (!VideoTexture20) {

  2701             return EndVidModeCreate();

  2702         }

  2704         if (rinfo.texture_formats[0] != appfmt) {

  2705             /* need to convert between app's format and texture format */

  2706             VideoConvertSurface20 = CreateNullPixelSurface20(width, height, rinfo.texture_formats[0]);

  2707             if (!VideoConvertSurface20) {

  2708                 return EndVidModeCreate();

  2709             }

  2710         }

  2712         VideoSurface12->flags &= ~SDL12_OPENGL;

  2713         VideoSurface12->flags |= SDL12_DOUBLEBUF;

  2714         VideoSurface12->surface20->pixels = SDL20_malloc(height * VideoSurface12->pitch);

  2715         VideoSurface12->pixels = VideoSurface12->surface20->pixels;

  2716         if (!VideoSurface12->pixels) {

  2717             SDL20_OutOfMemory();

  2718             return EndVidModeCreate();

  2719         }

  2721         /* fill in the same default palette that SDL 1.2 does... */

  2722         if (VideoSurface12->format->BitsPerPixel == 8) {

  2723             int i;

  2724             SDL_Color *color = VideoSurface12->format->palette->colors;

  2725             for (i = 0; i < 256; i++, color++) {

  2726                 { const int x = i & 0xe0; color->r = x | x >> 3 | x >> 6; }

  2727                 { const int x = (i << 3) & 0xe0; color->g = x | x >> 3 | x >> 6; }

  2728                 { const int x = (i & 0x3) | ((i & 0x3) << 2); color->b = x | x << 4; }

  2729                 color->a = 255;

  2730             }

  2731         }

  2732     }

  2734     SDL20_RaiseWindow(VideoWindow20);

  2736     FIXME("setup screen saver");

  2738     return VideoSurface12;

  2739 }

  2741 DECLSPEC SDL12_Surface * SDLCALL

  2742 SDL_GetVideoSurface(void)

  2743 {

  2744     return VideoSurface12;

  2745 }

  2747 DECLSPEC int SDLCALL

  2748 SDL_UpperBlit(SDL12_Surface *src, SDL12_Rect *srcrect12, SDL12_Surface *dst, SDL12_Rect *dstrect12)

  2749 {

  2750     SDL_Rect srcrect20, dstrect20;

  2751     const int retval = SDL20_UpperBlit(src->surface20,

  2752                                        srcrect12 ? Rect12to20(srcrect12, &srcrect20) : NULL,

  2753                                        dst->surface20,

  2754                                        dstrect12 ? Rect12to20(dstrect12, &dstrect20) : NULL);

  2756     if (srcrect12) {

  2757         Rect20to12(&srcrect20, srcrect12);

  2758     }

  2760     if (dstrect12) {

  2761         Rect20to12(&dstrect20, dstrect12);

  2762     }

  2764     return retval;

  2765 }

  2767 DECLSPEC int SDLCALL

  2768 SDL_LowerBlit(SDL12_Surface *src, SDL12_Rect *srcrect12, SDL12_Surface *dst, SDL12_Rect *dstrect12)

  2769 {

  2770     SDL_Rect srcrect20, dstrect20;

  2771     const int retval = SDL20_LowerBlit(src->surface20,

  2772                                        srcrect12 ? Rect12to20(srcrect12, &srcrect20) : NULL,

  2773                                        dst->surface20,

  2774                                        dstrect12 ? Rect12to20(dstrect12, &dstrect20) : NULL);

  2776     if (srcrect12) {

  2777         Rect20to12(&srcrect20, srcrect12);

  2778     }

  2780     if (srcrect12) {

  2781         Rect20to12(&dstrect20, dstrect12);

  2782     }

  2784     return retval;

  2785 }

  2787 DECLSPEC int SDLCALL

  2788 SDL_SetAlpha(SDL12_Surface * surface, Uint32 flag, Uint8 value)

  2789 {

  2790     FIXME("write me");

  2791     return SDL20_Unsupported();

  2792 }

  2794 DECLSPEC int SDLCALL

  2795 SDL_LockSurface(SDL12_Surface *surface12)

  2796 {

  2797     const int retval = SDL20_LockSurface(surface12->surface20);

  2798     surface12->pixels = surface12->surface20->pixels;

  2799     surface12->pitch = surface12->surface20->pitch;

  2800     return retval;

  2801 }

  2803 DECLSPEC void SDLCALL

  2804 SDL_UnlockSurface(SDL12_Surface *surface12)

  2805 {

  2806     SDL20_UnlockSurface(surface12->surface20);

  2807     surface12->pixels = surface12->surface20->pixels;

  2808     surface12->pitch = surface12->surface20->pitch;

  2809 }

  2811 DECLSPEC SDL12_Surface * SDLCALL

  2812 SDL_ConvertSurface(SDL12_Surface *src12, const SDL12_PixelFormat *format12, Uint32 flags12)

  2813 {

  2814     Uint32 flags20 = 0;

  2815     SDL_PixelFormat format20;

  2816     SDL_Palette palette20;

  2817     SDL_Surface *surface20;

  2818     SDL12_Surface *retval = NULL;

  2820     if (flags12 & SDL12_PREALLOC) flags20 |= SDL_PREALLOC;

  2821     if (flags12 & SDL12_RLEACCEL) flags20 |= SDL_RLEACCEL;

  2823     surface20 = SDL20_ConvertSurface(src12->surface20, PixelFormat12to20(&format20, &palette20, format12), flags20);

  2824     if (surface20) {

  2825         retval = Surface20to12(surface20);

  2826         if (!retval) {

  2827             SDL20_FreeSurface(surface20);

  2828         }

  2829     }

  2830     return retval;

  2831 }

  2833 DECLSPEC SDL12_Surface * SDLCALL

  2834 SDL_DisplayFormat(SDL12_Surface *surface12)

  2835 {

  2836     const Uint32 flags = surface12->flags & (SDL12_SRCCOLORKEY|SDL12_SRCALPHA|SDL12_RLEACCELOK);

  2837     return SDL_ConvertSurface(surface12, VideoSurface12->format, flags);

  2838 }

  2840 DECLSPEC SDL12_Surface * SDLCALL

  2841 SDL_DisplayFormatAlpha(SDL12_Surface *surface)

  2842 {

  2843     FIXME("write me");

  2844     SDL20_Unsupported();

  2845     return NULL;

  2846 }

  2848 static void

  2849 PresentScreen(void)

  2850 {

  2851     void *pixels = NULL;

  2852     int pitch = 0;

  2854     SDL_assert(VideoSurface12 != NULL);

  2856     if (SDL20_LockTexture(VideoTexture20, NULL, &pixels, &pitch) < 0) {

  2857         return;  /* oh well */

  2858     }

  2860     FIXME("Maybe lock texture always, until present, if no conversion needed?");

  2861     VideoConvertSurface20->pixels = pixels;

  2862     VideoConvertSurface20->pitch = pitch;

  2863     SDL20_UpperBlit(VideoSurface12->surface20, NULL, VideoConvertSurface20, NULL);

  2864     VideoConvertSurface20->pixels = NULL;

  2865     VideoConvertSurface20->pitch = 0;

  2867     SDL20_UnlockTexture(VideoTexture20);

  2868     SDL20_RenderCopy(VideoRenderer20, VideoTexture20, NULL, NULL);

  2869     SDL20_RenderPresent(VideoRenderer20);

  2870 }

  2872 DECLSPEC void SDLCALL

  2873 SDL_UpdateRects(SDL12_Surface *surface12, int numrects, SDL12_Rect *rects12)

  2874 {

  2875     /* strangely, SDL 1.2 doesn't check if surface12 is NULL before touching it */

  2876     /* (UpdateRect, singular, does...) */

  2877     if (surface12->flags & SDL12_OPENGL) {

  2878         SDL20_SetError("Use SDL_GL_SwapBuffers() on OpenGL surfaces");

  2879         return;

  2880     }

  2882     /* everything else is marked SDL12_DOUBLEBUF and is a no-op here. */

  2883 }

  2885 DECLSPEC void SDLCALL

  2886 SDL_UpdateRect(SDL12_Surface *screen12, Sint32 x, Sint32 y, Uint32 w, Uint32 h)

  2887 {

  2888     if (screen12) {

  2889         SDL12_Rect rect12;

  2890         rect12.x = (Sint16) x;

  2891         rect12.y = (Sint16) y;

  2892         rect12.w = (Uint16) (w ? w : screen12->w);

  2893         rect12.h = (Uint16) (h ? h : screen12->h);

  2894         SDL_UpdateRects(screen12, 1, &rect12);

  2895     }

  2896 }

  2898 DECLSPEC int SDLCALL

  2899 SDL_Flip(SDL12_Surface *surface12)

  2900 {

  2901     if (surface12->flags & SDL12_OPENGL) {

  2902         return SDL20_SetError("Use SDL_GL_SwapBuffers() on OpenGL surfaces");

  2903     }

  2905     if (surface12 == VideoSurface12) {

  2906         PresentScreen();

  2907     }

  2909     return 0;

  2910 }

  2912 DECLSPEC void SDLCALL

  2913 SDL_WM_SetCaption(const char *title, const char *icon)

  2914 {

  2915     if (WindowTitle) {

  2916         SDL20_free(WindowTitle);

  2917     }

  2918     if (WindowIconTitle) {

  2919         SDL20_free(WindowIconTitle);

  2920     }

  2921     WindowTitle = title ? SDL_strdup(title) : NULL;

  2922     WindowIconTitle = icon ? SDL_strdup(icon) : NULL;

  2923     if (VideoWindow20) {

  2924         SDL20_SetWindowTitle(VideoWindow20, WindowTitle);

  2925     }

  2926 }

  2928 DECLSPEC void SDLCALL

  2929 SDL_WM_GetCaption(const char **title, const char **icon)

  2930 {

  2931     if (title) {

  2932         *title = WindowTitle;

  2933     }

  2934     if (icon) {

  2935         *icon = WindowIconTitle;

  2936     }

  2937 }

  2939 DECLSPEC void SDLCALL

  2940 SDL_WM_SetIcon(SDL_Surface *icon, Uint8 *mask)

  2941 {

  2942     FIXME("write me");

  2943     SDL20_Unsupported();

  2944 }

  2946 DECLSPEC int SDLCALL

  2947 SDL_WM_IconifyWindow(void)

  2948 {

  2949     SDL20_MinimizeWindow(VideoWindow20);

  2950     return 0;

  2951 }

  2953 DECLSPEC int SDLCALL

  2954 SDL_WM_ToggleFullScreen(SDL12_Surface *surface)

  2955 {

  2956     int retval = 0;

  2957     if (surface == VideoSurface12) {

  2958         SDL_assert(VideoWindow20);

  2959         const Uint32 flags20 = SDL20_GetWindowFlags(VideoWindow20);

  2960         if (flags20 & SDL_WINDOW_FULLSCREEN) {

  2961             SDL_assert(VideoSurface12->flags & SDL12_FULLSCREEN);

  2962             retval = (SDL20_SetWindowFullscreen(VideoWindow20, 0) == 0);

  2963             if (retval) {

  2964                 VideoSurface12->flags &= ~SDL12_FULLSCREEN;

  2965             }

  2966         } else {

  2967             SDL_assert((VideoSurface12->flags & SDL12_FULLSCREEN) == 0);

  2968             const Uint32 newflags20 = (VideoSurface12->flags & SDL12_OPENGL) ? SDL_WINDOW_FULLSCREEN : SDL_WINDOW_FULLSCREEN_DESKTOP;

  2969             retval = (SDL20_SetWindowFullscreen(VideoWindow20, newflags20) == 0);

  2970             if (retval) {

  2971                 VideoSurface12->flags |= SDL12_FULLSCREEN;

  2972             }

  2973         }

  2974         if (retval && VideoRenderer20) {

  2975             SDL20_RenderSetLogicalSize(VideoRenderer20, VideoSurface12->w, VideoSurface12->h);

  2976         }

  2977     }

  2978     return retval;

  2979 }

  2981 typedef enum

  2982 {

  2983     SDL12_GRAB_QUERY = -1,

  2984     SDL12_GRAB_OFF = 0,

  2985     SDL12_GRAB_ON = 1

  2986 } SDL12_GrabMode;

  2988 static void

  2989 UpdateRelativeMouseMode(void)

  2990 {

  2991     // in SDL 1.2, hiding+grabbing the cursor was like SDL2's relative mouse mode.

  2992     if (VideoWindow20) {

  2993         const int visible = SDL20_ShowCursor(-1);

  2994         const SDL_bool grabbed = SDL20_GetWindowGrab(VideoWindow20);

  2995         SDL20_SetRelativeMouseMode((!visible && grabbed) ? SDL_TRUE : SDL_FALSE);

  2996     }

  2997 }

  2999 DECLSPEC int SDLCALL

  3000 SDL_ShowCursor(int toggle)

  3001 {

  3002     const int retval = SDL20_ShowCursor(toggle);

  3003     if (toggle >= 0) {

  3004         UpdateRelativeMouseMode();

  3005     }

  3006     return retval;

  3007 }

  3010 DECLSPEC SDL12_GrabMode SDLCALL

  3011 SDL_WM_GrabInput(SDL12_GrabMode mode)

  3012 {

  3013     if (mode != SDL12_GRAB_QUERY) {

  3014         SDL20_SetWindowGrab(VideoWindow20, (mode == SDL12_GRAB_ON));

  3015         UpdateRelativeMouseMode();

  3016     }

  3017     return SDL20_GetWindowGrab(VideoWindow20) ? SDL12_GRAB_ON : SDL12_GRAB_OFF;

  3018 }

  3020 DECLSPEC void SDLCALL

  3021 SDL_WarpMouse(Uint16 x, Uint16 y)

  3022 {

  3023     SDL20_WarpMouseInWindow(VideoWindow20, x, y);

  3024 }

  3026 DECLSPEC Uint8 SDLCALL

  3027 SDL_GetAppState(void)

  3028 {

  3029     Uint8 state12 = 0;

  3030     Uint32 flags20 = 0;

  3032     flags20 = SDL20_GetWindowFlags(VideoWindow20);

  3033     if ((flags20 & SDL_WINDOW_SHOWN) && !(flags20 & SDL_WINDOW_MINIMIZED)) {

  3034         state12 |= SDL12_APPACTIVE;

  3035     }

  3036     if (flags20 & SDL_WINDOW_INPUT_FOCUS) {

  3037         state12 |= SDL12_APPINPUTFOCUS;

  3038     }

  3039     if (flags20 & SDL_WINDOW_MOUSE_FOCUS) {

  3040         state12 |= SDL12_APPMOUSEFOCUS;

  3041     }

  3042     return state12;

  3043 }

  3045 DECLSPEC int SDLCALL

  3046 SDL_SetColorKey(SDL12_Surface *surface12, Uint32 flag12, Uint32 key)

  3047 {

  3048     const SDL_bool addkey = (flag12 & SDL12_SRCCOLORKEY) ? SDL_TRUE : SDL_FALSE;

  3049     const int retval = SDL20_SetColorKey(surface12->surface20, addkey, key);

  3050     if (SDL20_GetColorKey(surface12->surface20, &surface12->format->colorkey) < 0) {

  3051         surface12->format->colorkey = 0;

  3052     }

  3053     return retval;

  3054 }

  3056 DECLSPEC int SDLCALL

  3057 SDL_SetPalette(SDL12_Surface *surface12, int flags, const SDL_Color *colors,

  3058                int firstcolor, int ncolors)

  3059 {

  3060     FIXME("write me");

  3061     return SDL20_Unsupported();

  3062 }

  3064 DECLSPEC int SDLCALL

  3065 SDL_SetColors(SDL12_Surface *surface12, const SDL_Color * colors, int firstcolor,

  3066               int ncolors)

  3067 {

  3068     FIXME("write me");

  3069     return SDL20_Unsupported();

  3070 }

  3072 DECLSPEC int SDLCALL

  3073 SDL_GetWMInfo(SDL_SysWMinfo * info)

  3074 {

  3075     FIXME("write me");

  3076     //return SDL20_GetWindowWMInfo(VideoWindow20, info);

  3077     return SDL20_Unsupported();

  3078 }

  3080 DECLSPEC SDL12_Overlay * SDLCALL

  3081 SDL_CreateYUVOverlay(int w, int h, Uint32 format, SDL12_Surface *display)

  3082 {

  3083     FIXME("write me");

  3084     SDL20_Unsupported();

  3085     return NULL;

  3086 }

  3088 DECLSPEC int SDLCALL

  3089 SDL_LockYUVOverlay(SDL12_Overlay * overlay)

  3090 {

  3091     FIXME("write me");

  3092     return SDL20_Unsupported();

  3093 }

  3095 DECLSPEC void SDLCALL

  3096 SDL_UnlockYUVOverlay(SDL12_Overlay * overlay)

  3097 {

  3098     FIXME("write me");

  3099 }

  3101 DECLSPEC int SDLCALL

  3102 SDL_DisplayYUVOverlay(SDL12_Overlay * overlay, SDL12_Rect * dstrect12)

  3103 {

  3104     FIXME("write me");

  3105     return SDL20_Unsupported();

  3106 }

  3108 DECLSPEC void SDLCALL

  3109 SDL_FreeYUVOverlay(SDL12_Overlay * overlay)

  3110 {

  3111     FIXME("write me");

  3112 }

  3114 DECLSPEC int SDLCALL

  3115 SDL_GL_LoadLibrary(const char *libname)

  3116 {

  3117     /* SDL 1.2 would unload the previous library if one was loaded. SDL2

  3118        reports an error if one is already loaded, and sometimes loads it

  3119        internally for some video targets, so unloading it probably isn't safe.

  3120        There really isn't a good reason to be using anything other than the

  3121        system OpenGL in 2019, so we ignore the error in this case to match 1.2

  3122        behavior, even if you were going to load a different library this time.

  3123        Oh well. */

  3124     const int rc = SDL20_GL_LoadLibrary(libname);

  3125     if (rc == -1) {

  3126         const char *err = SDL20_GetError();

  3127         if (SDL20_strcmp(err, "OpenGL library already loaded") == 0) {

  3128             return 0;

  3129         }

  3131         /* reset the actual error. */

  3132         char *dup = SDL_strdup(err);

  3133         if (!dup) {

  3134             SDL20_SetError("Out of memory");

  3135         } else {

  3136             SDL20_SetError(dup);

  3137             SDL_free(dup);

  3138         }

  3139     }

  3140     return rc;

  3141 }

  3144 DECLSPEC int SDLCALL

  3145 SDL_GL_SetAttribute(SDL12_GLattr attr, int value)

  3146 {

  3147     if (attr >= SDL12_GL_MAX_ATTRIBUTE)

  3148         return SDL20_SetError("Unknown GL attribute");

  3150     /* swap control was moved out of this API, everything else lines up. */

  3151     if (attr == SDL12_GL_SWAP_CONTROL)

  3152     {

  3153         SwapInterval = value;

  3154         FIXME("Actually set swap interval somewhere");

  3155         return 0;

  3156     }

  3158     return SDL20_GL_SetAttribute((SDL_GLattr) attr, value);

  3159 }

  3161 DECLSPEC int SDLCALL

  3162 SDL_GL_GetAttribute(SDL12_GLattr attr, int* value)

  3163 {

  3164     if (attr >= SDL12_GL_MAX_ATTRIBUTE)

  3165         return SDL20_SetError("Unknown GL attribute");

  3167     /* swap control was moved out of this API, everything else lines up. */

  3168     if (attr == SDL12_GL_SWAP_CONTROL)

  3169     {

  3170         *value = SDL20_GL_GetSwapInterval();

  3171         return 0;

  3172     }

  3174     return SDL20_GL_GetAttribute((SDL_GLattr) attr, value);

  3175 }

  3178 DECLSPEC void SDLCALL

  3179 SDL_GL_SwapBuffers(void)

  3180 {

  3181     if (VideoWindow20)

  3182         SDL20_GL_SwapWindow(VideoWindow20);

  3183 }

  3185 DECLSPEC int SDLCALL

  3186 SDL_SetGamma(float red, float green, float blue)

  3187 {

  3188     Uint16 red_ramp[256];

  3189     Uint16 green_ramp[256];

  3190     Uint16 blue_ramp[256];

  3192     SDL20_CalculateGammaRamp(red, red_ramp);

  3193     if (green == red) {

  3194         SDL20_memcpy(green_ramp, red_ramp, sizeof(red_ramp));

  3195     } else {

  3196         SDL20_CalculateGammaRamp(green, green_ramp);

  3197     }

  3198     if (blue == red) {

  3199         SDL20_memcpy(blue_ramp, red_ramp, sizeof(red_ramp));

  3200     } else if (blue == green) {

  3201         SDL20_memcpy(blue_ramp, green_ramp, sizeof(green_ramp));

  3202     } else {

  3203         SDL20_CalculateGammaRamp(blue, blue_ramp);

  3204     }

  3205     return SDL20_SetWindowGammaRamp(VideoWindow20, red_ramp, green_ramp, blue_ramp);

  3206 }

  3208 DECLSPEC int SDLCALL

  3209 SDL_SetGammaRamp(const Uint16 *red, const Uint16 *green, const Uint16 *blue)

  3210 {

  3211     return SDL20_SetWindowGammaRamp(VideoWindow20, red, green, blue);

  3212 }

  3214 DECLSPEC int SDLCALL

  3215 SDL_GetGammaRamp(Uint16 *red, Uint16 *green, Uint16 *blue)

  3216 {

  3217     return SDL20_GetWindowGammaRamp(VideoWindow20, red, green, blue);

  3218 }

  3220 DECLSPEC int SDLCALL

  3221 SDL_EnableKeyRepeat(int delay, int interval)

  3222 {

  3223     FIXME("write me");

  3224     return 0;

  3225 }

  3227 DECLSPEC void SDLCALL

  3228 SDL_GetKeyRepeat(int *delay, int *interval)

  3229 {

  3230     FIXME("write me");

  3231     if (delay) {

  3232         *delay = SDL12_DEFAULT_REPEAT_DELAY;

  3233     }

  3234     if (interval) {

  3235         *interval = SDL12_DEFAULT_REPEAT_INTERVAL;

  3236     }

  3237 }

  3239 DECLSPEC int SDLCALL

  3240 SDL_EnableUNICODE(int enable)

  3241 {

  3242     FIXME("write me");

  3243     return SDL20_Unsupported();

  3244 }

  3246 static Uint32

  3247 SetTimerOld_Callback(Uint32 interval, void* param)

  3248 {

  3249     return ((SDL12_TimerCallback)param)(interval);

  3250 }

  3252 DECLSPEC int SDLCALL

  3253 SDL_SetTimer(Uint32 interval, SDL12_TimerCallback callback)

  3254 {

  3255     static SDL_TimerID compat_timer;

  3257     if (compat_timer) {

  3258         SDL20_RemoveTimer(compat_timer);

  3259         compat_timer = 0;

  3260     }

  3262     if (interval && callback) {

  3263         compat_timer = SDL20_AddTimer(interval, SetTimerOld_Callback, callback);

  3264         if (!compat_timer) {

  3265             return -1;

  3266         }

  3267     }

  3268     return 0;

  3269 }

  3271 DECLSPEC int SDLCALL

  3272 SDL_putenv(const char *_var)

  3273 {

  3274     char *ptr = NULL;

  3275     char *var = SDL20_strdup(_var);

  3276     if (var == NULL) {

  3277         return -1;  /* we don't set errno. */

  3278     }

  3280     ptr = SDL20_strchr(var, '=');

  3281     if (ptr == NULL) {

  3282         SDL20_free(var);

  3283         return -1;

  3284     }

  3286     *ptr = '\0';  /* split the string into name and value. */

  3287     SDL20_setenv(var, ptr + 1, 1);

  3288     SDL20_free(var);

  3289     return 0;

  3290 }

  3294 /* CD-ROM support is gone from SDL 2.0, so just have stubs that fail. */

  3296 typedef void *SDL12_CD;  /* close enough.  :) */

  3297 typedef int SDL12_CDstatus;  /* close enough.  :) */

  3299 DECLSPEC int SDLCALL

  3300 SDL_CDNumDrives(void)

  3301 {

  3302     FIXME("should return -1 without SDL_INIT_CDROM");

  3303     return 0;

  3304 }

  3306 DECLSPEC const char *SDLCALL SDL_CDName(int drive) { SDL20_Unsupported(); return NULL; }

  3307 DECLSPEC SDL12_CD *SDLCALL SDL_CDOpen(int drive) { SDL20_Unsupported(); return NULL; }

  3308 DECLSPEC SDL12_CDstatus SDLCALL SDL_CDStatus(SDL12_CD *cdrom) { return SDL20_Unsupported(); }

  3309 DECLSPEC int SDLCALL SDL_CDPlayTracks(SDL12_CD *cdrom, int start_track, int start_frame, int ntracks, int nframes) { return SDL20_Unsupported(); }

  3310 DECLSPEC int SDLCALL SDL_CDPlay(SDL12_CD *cdrom, int start, int length) { return SDL20_Unsupported(); }

  3311 DECLSPEC int SDLCALL SDL_CDPause(SDL12_CD *cdrom) { return SDL20_Unsupported(); }

  3312 DECLSPEC int SDLCALL SDL_CDResume(SDL12_CD *cdrom) { return SDL20_Unsupported(); }

  3313 DECLSPEC int SDLCALL SDL_CDStop(SDL12_CD *cdrom) { return SDL20_Unsupported(); }

  3314 DECLSPEC int SDLCALL SDL_CDEject(SDL12_CD *cdrom) { return SDL20_Unsupported(); }

  3315 DECLSPEC void SDLCALL SDL_CDClose(SDL12_CD *cdrom) {}

  3318 #ifdef SDL_PASSED_BEGINTHREAD_ENDTHREAD

  3319 DECLSPEC SDL_Thread * SDLCALL

  3320 SDL_CreateThread(int (SDLCALL *fn)(void *), void *data, pfnSDL_CurrentBeginThread pfnBeginThread, pfnSDL_CurrentEndThread pfnEndThread)

  3321 {

  3322     return SDL20_CreateThread(fn, NULL, data, pfnBeginThread, pfnEndThread);

  3323 }

  3324 #else

  3325 DECLSPEC SDL_Thread * SDLCALL

  3326 SDL_CreateThread(int (SDLCALL *fn)(void *), void *data)

  3327 {

  3328     return SDL20_CreateThread(fn, NULL, data);

  3329 }

  3330 #endif

  3332 DECLSPEC int SDLCALL

  3333 SDL_mutexP(SDL_mutex *mutex)

  3334 {

  3335     return SDL20_LockMutex(mutex);

  3336 }

  3338 DECLSPEC int SDLCALL

  3339 SDL_mutexV(SDL_mutex *mutex)

  3340 {

  3341     return SDL20_UnlockMutex(mutex);

  3342 }

  3344 DECLSPEC void SDLCALL

  3345 SDL_KillThread(SDL_Thread *thread)

  3346 {

  3347     FIXME("Removed from 2.0; do nothing. We can't even report failure.");

  3348     fprintf(stderr,

  3349         "WARNING: this app used SDL_KillThread(), an unforgivable curse.\n"

  3350         "This program should be fixed. No thread was actually harmed.\n");

  3351 }

  3353 /* This changed from an opaque pointer to an int in 2.0. */

  3354 typedef struct _SDL12_TimerID *SDL12_TimerID;

  3355 SDL_COMPILE_TIME_ASSERT(timer, sizeof(SDL12_TimerID) >= sizeof(SDL_TimerID));

  3358 DECLSPEC SDL12_TimerID SDLCALL

  3359 SDL_AddTimer(Uint32 interval, SDL12_NewTimerCallback callback, void *param)

  3360 {

  3361     return (SDL12_TimerID) ((size_t) SDL20_AddTimer(interval, callback, param));

  3362 }

  3364 DECLSPEC SDL_bool SDLCALL

  3365 SDL_RemoveTimer(SDL12_TimerID id)

  3366 {

  3367     return SDL20_RemoveTimer((SDL_TimerID) ((size_t)id));

  3368 }

  3371 typedef struct SDL12_RWops {

  3372     int (SDLCALL *seek)(struct SDL12_RWops *context, int offset, int whence);

  3373     int (SDLCALL *read)(struct SDL12_RWops *context, void *ptr, int size, int maxnum);

  3374     int (SDLCALL *write)(struct SDL12_RWops *context, const void *ptr, int size, int num);

  3375     int (SDLCALL *close)(struct SDL12_RWops *context);

  3376     Uint32 type;

  3377     void *padding[8];

  3378     SDL_RWops *rwops20;

  3379 } SDL12_RWops;

  3382 DECLSPEC SDL12_RWops * SDLCALL

  3383 SDL_AllocRW(void)

  3384 {

  3385     SDL12_RWops *rwops = (SDL12_RWops *) SDL20_malloc(sizeof (SDL12_RWops));

  3386     if (!rwops)

  3387         SDL20_OutOfMemory();

  3388     return rwops;

  3389 }

  3391 DECLSPEC void SDLCALL

  3392 SDL_FreeRW(SDL12_RWops *rwops12)

  3393 {

  3394     SDL20_free(rwops12);

  3395 }

  3397 static int SDLCALL

  3398 RWops20to12_seek(struct SDL12_RWops *rwops12, int offset, int whence)

  3399 {

  3400     return rwops12->rwops20->seek(rwops12->rwops20, offset, whence);

  3401 }

  3403 static int SDLCALL

  3404 RWops20to12_read(struct SDL12_RWops *rwops12, void *ptr, int size, int maxnum)

  3405 {

  3406     return rwops12->rwops20->read(rwops12->rwops20, ptr, size, maxnum);

  3407 }

  3409 static int SDLCALL

  3410 RWops20to12_write(struct SDL12_RWops *rwops12, const void *ptr, int size, int num)

  3411 {

  3412     return rwops12->rwops20->write(rwops12->rwops20, ptr, size, num);

  3413 }

  3415 static int SDLCALL

  3416 RWops20to12_close(struct SDL12_RWops *rwops12)

  3417 {

  3418     int rc = 0;

  3419     if (rwops12)

  3420     {

  3421         rc = rwops12->rwops20->close(rwops12->rwops20);

  3422         if (rc == 0)

  3423             SDL_FreeRW(rwops12);

  3424     }

  3425     return rc;

  3426 }

  3428 static SDL12_RWops *

  3429 RWops20to12(SDL_RWops *rwops20)

  3430 {

  3431     SDL12_RWops *rwops12;

  3433     if (!rwops20)

  3434         return NULL;

  3436     rwops12 = SDL_AllocRW();

  3437     if (!rwops12)

  3438         return NULL;

  3440     SDL20_zerop(rwops12);

  3441     rwops12->type = rwops20->type;

  3442     rwops12->rwops20 = rwops20;

  3443     rwops12->seek = RWops20to12_seek;

  3444     rwops12->read = RWops20to12_read;

  3445     rwops12->write = RWops20to12_write;

  3446     rwops12->close = RWops20to12_close;

  3448     return rwops12;

  3449 }

  3451 DECLSPEC SDL12_RWops * SDLCALL

  3452 SDL_RWFromFile(const char *file, const char *mode)

  3453 {

  3454     if ( !file || !*file || !mode || !*mode ) {

  3455         SDL_SetError("SDL_RWFromFile(): No file or no mode specified");

  3456         return NULL;

  3457     }

  3458     return RWops20to12(SDL20_RWFromFile(file, mode));

  3459 }

  3461 DECLSPEC SDL12_RWops * SDLCALL

  3462 SDL_RWFromFP(FILE *io, int autoclose)

  3463 {

  3464     return RWops20to12(SDL20_RWFromFP(io, autoclose));

  3465 }

  3467 DECLSPEC SDL12_RWops * SDLCALL

  3468 SDL_RWFromMem(void *mem, int size)

  3469 {

  3470     return RWops20to12(SDL20_RWFromMem(mem, size));

  3471 }

  3473 DECLSPEC SDL12_RWops * SDLCALL

  3474 SDL_RWFromConstMem(const void *mem, int size)

  3475 {

  3476     return RWops20to12(SDL20_RWFromConstMem(mem, size));

  3477 }

  3479 #define READ_AND_BYTESWAP(endian, bits) \

  3480     DECLSPEC Uint##bits SDLCALL SDL_Read##endian##bits(SDL12_RWops *rwops12) { \

  3481         Uint##bits val; rwops12->read(rwops12, &val, sizeof (val), 1); \

  3482         return SDL_Swap##endian##bits(val); \

  3483     }

  3485 READ_AND_BYTESWAP(LE,16)

  3486 READ_AND_BYTESWAP(BE,16)

  3487 READ_AND_BYTESWAP(LE,32)

  3488 READ_AND_BYTESWAP(BE,32)

  3489 READ_AND_BYTESWAP(LE,64)

  3490 READ_AND_BYTESWAP(BE,64)

  3491 #undef READ_AND_BYTESWAP

  3493 #define BYTESWAP_AND_WRITE(endian, bits) \

  3494     DECLSPEC int SDLCALL SDL_Write##endian##bits(SDL12_RWops *rwops12, Uint##bits val) { \

  3495         val = SDL_Swap##endian##bits(val); \

  3496         return rwops12->write(rwops12, &val, sizeof (val), 1); \

  3497     }

  3498 BYTESWAP_AND_WRITE(LE,16)

  3499 BYTESWAP_AND_WRITE(BE,16)

  3500 BYTESWAP_AND_WRITE(LE,32)

  3501 BYTESWAP_AND_WRITE(BE,32)

  3502 BYTESWAP_AND_WRITE(LE,64)

  3503 BYTESWAP_AND_WRITE(BE,64)

  3504 #undef BYTESWAP_AND_WRITE

  3507 static Sint64 SDLCALL

  3508 RWops12to20_size(struct SDL_RWops *rwops20)

  3509 {

  3510     SDL12_RWops *rwops12 = (SDL12_RWops *) rwops20->hidden.unknown.data1;

  3511     int size = (int) ((size_t) rwops20->hidden.unknown.data2);

  3512     int pos;

  3514     if (size != -1)

  3515         return size;

  3517     pos = rwops12->seek(rwops12, 0, SEEK_CUR);

  3518     if (pos == -1)

  3519         return -1;

  3521     size = (Sint64) rwops12->seek(rwops12, 0, SEEK_END);

  3522     if (size == -1)

  3523         return -1;

  3525     rwops12->seek(rwops12, pos, SEEK_SET);  FIXME("...and if this fails?");

  3526     rwops20->hidden.unknown.data2 = (void *) ((size_t) size);

  3527     return size;

  3528 }

  3530 static Sint64 SDLCALL

  3531 RWops12to20_seek(struct SDL_RWops *rwops20, Sint64 offset, int whence)

  3532 {

  3533     FIXME("fail if (offset) is too big");

  3534     SDL12_RWops *rwops12 = (SDL12_RWops *) rwops20->hidden.unknown.data1;

  3535     return (Sint64) rwops12->seek(rwops12, (int) offset, whence);

  3536 }

  3538 static size_t SDLCALL

  3539 RWops12to20_read(struct SDL_RWops *rwops20, void *ptr, size_t size, size_t maxnum)

  3540 {

  3541     FIXME("fail if (size) or (maxnum) is too big");

  3542     SDL12_RWops *rwops12 = (SDL12_RWops *) rwops20->hidden.unknown.data1;

  3543     return (size_t) rwops12->read(rwops12, ptr, (int) size, (int) maxnum);

  3544 }

  3546 static size_t SDLCALL

  3547 RWops12to20_write(struct SDL_RWops *rwops20, const void *ptr, size_t size, size_t num)

  3548 {

  3549     FIXME("fail if (size) or (maxnum) is too big");

  3550     SDL12_RWops *rwops12 = (SDL12_RWops *) rwops20->hidden.unknown.data1;

  3551     return (size_t) rwops12->write(rwops12, ptr, (int) size, (int) num);

  3552 }

  3554 static int SDLCALL

  3555 RWops12to20_close(struct SDL_RWops *rwops20)

  3556 {

  3557     int rc = 0;

  3558     if (rwops20)

  3559     {

  3560         SDL12_RWops *rwops12 = (SDL12_RWops *) rwops20->hidden.unknown.data1;

  3561         rc = rwops12->close(rwops12);

  3562         if (rc == 0)

  3563             SDL20_FreeRW(rwops20);

  3564     }

  3565     return rc;

  3566 }

  3568 static SDL_RWops *

  3569 RWops12to20(SDL12_RWops *rwops12)

  3570 {

  3571     SDL_RWops *rwops20;

  3573     if (!rwops12)

  3574         return NULL;

  3576     rwops20 = SDL20_AllocRW();

  3577     if (!rwops20)

  3578         return NULL;

  3580     SDL20_zerop(rwops20);

  3581     rwops20->type = rwops12->type;

  3582     rwops20->hidden.unknown.data1 = rwops12;

  3583     rwops20->hidden.unknown.data2 = (void *) ((size_t) -1);  /* cached size of stream */

  3584     rwops20->size = RWops12to20_size;

  3585     rwops20->seek = RWops12to20_seek;

  3586     rwops20->read = RWops12to20_read;

  3587     rwops20->write = RWops12to20_write;

  3588     rwops20->close = RWops12to20_close;

  3589     return rwops20;

  3590 }

  3592 DECLSPEC SDL12_Surface * SDLCALL

  3593 SDL_LoadBMP_RW(SDL12_RWops *rwops12, int freerwops12)

  3594 {

  3595     SDL_RWops *rwops20 = RWops12to20(rwops12);

  3596     SDL_Surface *surface20 = SDL20_LoadBMP_RW(rwops20, freerwops12);

  3597     SDL12_Surface *surface12 = Surface20to12(surface20);

  3598     if (!freerwops12)  /* free our wrapper if SDL2 didn't close it. */

  3599         SDL20_FreeRW(rwops20);

  3600     if ((!surface12) && (surface20))

  3601         SDL20_FreeSurface(surface20);

  3602     return surface12;

  3603 }

  3605 DECLSPEC int SDLCALL

  3606 SDL_SaveBMP_RW(SDL12_Surface *surface12, SDL12_RWops *rwops12, int freerwops12)

  3607 {

  3608     FIXME("wrap surface");

  3609     SDL_RWops *rwops20 = RWops12to20(rwops12);

  3610     const int retval = SDL20_SaveBMP_RW(surface12->surface20, rwops20, freerwops12);

  3611     if (!freerwops12)  /* free our wrapper if SDL2 didn't close it. */

  3612         SDL20_FreeRW(rwops20);

  3613     return retval;

  3614 }

  3616 DECLSPEC SDL_AudioSpec * SDLCALL

  3617 SDL_LoadWAV_RW(SDL12_RWops *rwops12, int freerwops12,

  3618                SDL_AudioSpec *spec, Uint8 **buf, Uint32 *len)

  3619 {

  3620     SDL_RWops *rwops20 = RWops12to20(rwops12);

  3621     SDL_AudioSpec *retval = SDL20_LoadWAV_RW(rwops20, freerwops12, spec, buf, len);

  3622     FIXME("deal with non-1.2 formats, like float32");

  3623     if (!freerwops12)  /* free our wrapper if SDL2 didn't close it. */

  3624         SDL20_FreeRW(rwops20);

  3625     return retval;

  3626 }

  3628 /* vi: set ts=4 sw=4 expandtab: */

author	Ryan C. Gordon <icculus@icculus.org>
	Fri, 01 Mar 2019 10:51:25 -0500
changeset 92	b62ce3deedf4
parent 91	ecc70507b655
child 93	20605b15ca8c
permissions	-rw-r--r--