Mercurial > sdl-ios-xcode
annotate include/SDL_endian.h @ 664:abfdc08eb289
Date: Sun, 3 Aug 2003 22:07:57 +0200
From: Max Horn
Subject: SDL OSX fullscreen FIX
the attached patch fixes the fullscreen problems on SDL/OSX. The cause
was that click events are bounded by winRect. Now, winRect is set to
the size of the video surface. But if you e.g. request a 640x420
surface, you might get a 640x480 "real" surface. Still,
SDL_VideoSurface->h will be set to 420! Thus, the upper 60 pixels in my
example received no mouse down events.
My fix simply disables this clipping when in full screen mode - after
all, all clicks then should be inside the screen surface. Higher SDL
functions ensure that the coordinates then are clipped to 640x420. It
works fine in all my tests here. I don't know if it's the right thing
to do in multi screen scenarios, though.
| author | Sam Lantinga <slouken@libsdl.org> |
|---|---|
| date | Mon, 04 Aug 2003 01:00:30 +0000 |
| parents | 9154ec9ca3d2 |
| children | b8d311d90021 |
| rev | line source |
|---|---|
| 0 | 1 /* |
| 2 SDL - Simple DirectMedia Layer | |
|
297
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Updated copyright information for 2002
Sam Lantinga <slouken@libsdl.org>
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3 Copyright (C) 1997, 1998, 1999, 2000, 2001, 2002 Sam Lantinga |
| 0 | 4 |
| 5 This library is free software; you can redistribute it and/or | |
| 6 modify it under the terms of the GNU Library General Public | |
| 7 License as published by the Free Software Foundation; either | |
| 8 version 2 of the License, or (at your option) any later version. | |
| 9 | |
| 10 This library is distributed in the hope that it will be useful, | |
| 11 but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
| 13 Library General Public License for more details. | |
| 14 | |
| 15 You should have received a copy of the GNU Library General Public | |
| 16 License along with this library; if not, write to the Free | |
| 17 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | |
| 18 | |
| 19 Sam Lantinga | |
|
251
b8688cfdc232
Updated the headers with the correct e-mail address
Sam Lantinga <slouken@libsdl.org>
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20 slouken@libsdl.org |
| 0 | 21 */ |
| 22 | |
| 23 #ifdef SAVE_RCSID | |
| 24 static char rcsid = | |
| 25 "@(#) $Id$"; | |
| 26 #endif | |
| 27 | |
| 28 /* Functions for reading and writing endian-specific values */ | |
| 29 | |
| 30 #ifndef _SDL_endian_h | |
| 31 #define _SDL_endian_h | |
| 32 | |
| 33 /* These functions read and write data of the specified endianness, | |
| 34 dynamically translating to the host machine endianness. | |
| 35 | |
| 36 e.g.: If you want to read a 16 bit value on big-endian machine from | |
| 37 an open file containing little endian values, you would use: | |
| 38 value = SDL_ReadLE16(rp); | |
| 39 Note that the read/write functions use SDL_RWops pointers | |
| 40 instead of FILE pointers. This allows you to read and write | |
| 41 endian values from large chunks of memory as well as files | |
| 42 and other data sources. | |
| 43 */ | |
| 44 | |
| 45 #include <stdio.h> | |
| 46 | |
| 47 #include "SDL_types.h" | |
| 48 #include "SDL_rwops.h" | |
| 49 #include "SDL_byteorder.h" | |
| 50 | |
| 51 #include "begin_code.h" | |
| 52 /* Set up for C function definitions, even when using C++ */ | |
| 53 #ifdef __cplusplus | |
| 54 extern "C" { | |
| 55 #endif | |
| 56 | |
| 57 /* The macros used to swap values */ | |
| 58 /* Try to use superfast macros on systems that support them */ | |
| 59 #ifdef linux | |
| 60 #include <asm/byteorder.h> | |
| 61 #ifdef __arch__swab16 | |
| 62 #define SDL_Swap16 __arch__swab16 | |
| 63 #endif | |
| 64 #ifdef __arch__swab32 | |
| 65 #define SDL_Swap32 __arch__swab32 | |
| 66 #endif | |
| 67 #endif /* linux */ | |
| 68 /* Use inline functions for compilers that support them, and static | |
| 69 functions for those that do not. Because these functions become | |
| 70 static for compilers that do not support inline functions, this | |
| 71 header should only be included in files that actually use them. | |
| 72 */ | |
| 73 #ifndef SDL_Swap16 | |
| 74 static __inline__ Uint16 SDL_Swap16(Uint16 D) { | |
| 75 return((D<<8)|(D>>8)); | |
| 76 } | |
| 77 #endif | |
| 78 #ifndef SDL_Swap32 | |
| 79 static __inline__ Uint32 SDL_Swap32(Uint32 D) { | |
| 80 return((D<<24)|((D<<8)&0x00FF0000)|((D>>8)&0x0000FF00)|(D>>24)); | |
| 81 } | |
| 82 #endif | |
| 83 #ifdef SDL_HAS_64BIT_TYPE | |
| 84 #ifndef SDL_Swap64 | |
| 85 static __inline__ Uint64 SDL_Swap64(Uint64 val) { | |
| 86 Uint32 hi, lo; | |
| 87 | |
| 88 /* Separate into high and low 32-bit values and swap them */ | |
| 89 lo = (Uint32)(val&0xFFFFFFFF); | |
| 90 val >>= 32; | |
| 91 hi = (Uint32)(val&0xFFFFFFFF); | |
| 92 val = SDL_Swap32(lo); | |
| 93 val <<= 32; | |
| 94 val |= SDL_Swap32(hi); | |
| 95 return(val); | |
| 96 } | |
| 97 #endif | |
| 98 #else | |
| 99 #ifndef SDL_Swap64 | |
| 100 /* This is mainly to keep compilers from complaining in SDL code. | |
| 101 If there is no real 64-bit datatype, then compilers will complain about | |
| 102 the fake 64-bit datatype that SDL provides when it compiles user code. | |
| 103 */ | |
| 104 #define SDL_Swap64(X) (X) | |
| 105 #endif | |
| 106 #endif /* SDL_HAS_64BIT_TYPE */ | |
| 107 | |
| 108 | |
| 109 /* Byteswap item from the specified endianness to the native endianness */ | |
| 110 #if SDL_BYTEORDER == SDL_LIL_ENDIAN | |
| 111 #define SDL_SwapLE16(X) (X) | |
| 112 #define SDL_SwapLE32(X) (X) | |
| 113 #define SDL_SwapLE64(X) (X) | |
| 114 #define SDL_SwapBE16(X) SDL_Swap16(X) | |
| 115 #define SDL_SwapBE32(X) SDL_Swap32(X) | |
| 116 #define SDL_SwapBE64(X) SDL_Swap64(X) | |
| 117 #else | |
| 118 #define SDL_SwapLE16(X) SDL_Swap16(X) | |
| 119 #define SDL_SwapLE32(X) SDL_Swap32(X) | |
| 120 #define SDL_SwapLE64(X) SDL_Swap64(X) | |
| 121 #define SDL_SwapBE16(X) (X) | |
| 122 #define SDL_SwapBE32(X) (X) | |
| 123 #define SDL_SwapBE64(X) (X) | |
| 124 #endif | |
| 125 | |
| 126 /* Read an item of the specified endianness and return in native format */ | |
|
337
9154ec9ca3d2
Explicitly specify the SDL API calling convention (C by default)
Sam Lantinga <slouken@libsdl.org>
parents:
297
diff
changeset
|
127 extern DECLSPEC Uint16 SDLCALL SDL_ReadLE16(SDL_RWops *src); |
|
9154ec9ca3d2
Explicitly specify the SDL API calling convention (C by default)
Sam Lantinga <slouken@libsdl.org>
parents:
297
diff
changeset
|
128 extern DECLSPEC Uint16 SDLCALL SDL_ReadBE16(SDL_RWops *src); |
|
9154ec9ca3d2
Explicitly specify the SDL API calling convention (C by default)
Sam Lantinga <slouken@libsdl.org>
parents:
297
diff
changeset
|
129 extern DECLSPEC Uint32 SDLCALL SDL_ReadLE32(SDL_RWops *src); |
|
9154ec9ca3d2
Explicitly specify the SDL API calling convention (C by default)
Sam Lantinga <slouken@libsdl.org>
parents:
297
diff
changeset
|
130 extern DECLSPEC Uint32 SDLCALL SDL_ReadBE32(SDL_RWops *src); |
|
9154ec9ca3d2
Explicitly specify the SDL API calling convention (C by default)
Sam Lantinga <slouken@libsdl.org>
parents:
297
diff
changeset
|
131 extern DECLSPEC Uint64 SDLCALL SDL_ReadLE64(SDL_RWops *src); |
|
9154ec9ca3d2
Explicitly specify the SDL API calling convention (C by default)
Sam Lantinga <slouken@libsdl.org>
parents:
297
diff
changeset
|
132 extern DECLSPEC Uint64 SDLCALL SDL_ReadBE64(SDL_RWops *src); |
| 0 | 133 |
| 134 /* Write an item of native format to the specified endianness */ | |
|
337
9154ec9ca3d2
Explicitly specify the SDL API calling convention (C by default)
Sam Lantinga <slouken@libsdl.org>
parents:
297
diff
changeset
|
135 extern DECLSPEC int SDLCALL SDL_WriteLE16(SDL_RWops *dst, Uint16 value); |
|
9154ec9ca3d2
Explicitly specify the SDL API calling convention (C by default)
Sam Lantinga <slouken@libsdl.org>
parents:
297
diff
changeset
|
136 extern DECLSPEC int SDLCALL SDL_WriteBE16(SDL_RWops *dst, Uint16 value); |
|
9154ec9ca3d2
Explicitly specify the SDL API calling convention (C by default)
Sam Lantinga <slouken@libsdl.org>
parents:
297
diff
changeset
|
137 extern DECLSPEC int SDLCALL SDL_WriteLE32(SDL_RWops *dst, Uint32 value); |
|
9154ec9ca3d2
Explicitly specify the SDL API calling convention (C by default)
Sam Lantinga <slouken@libsdl.org>
parents:
297
diff
changeset
|
138 extern DECLSPEC int SDLCALL SDL_WriteBE32(SDL_RWops *dst, Uint32 value); |
|
9154ec9ca3d2
Explicitly specify the SDL API calling convention (C by default)
Sam Lantinga <slouken@libsdl.org>
parents:
297
diff
changeset
|
139 extern DECLSPEC int SDLCALL SDL_WriteLE64(SDL_RWops *dst, Uint64 value); |
|
9154ec9ca3d2
Explicitly specify the SDL API calling convention (C by default)
Sam Lantinga <slouken@libsdl.org>
parents:
297
diff
changeset
|
140 extern DECLSPEC int SDLCALL SDL_WriteBE64(SDL_RWops *dst, Uint64 value); |
| 0 | 141 |
| 142 | |
| 143 /* Ends C function definitions when using C++ */ | |
| 144 #ifdef __cplusplus | |
| 145 } | |
| 146 #endif | |
| 147 #include "close_code.h" | |
| 148 | |
| 149 #endif /* _SDL_endian_h */ |