Mercurial > sdl-ios-xcode
view include/SDL_version.h @ 4168:69bcba65c388 SDL-1.2
Fixed bug #526
Comment #1 From Simon Howard 2009-03-20 16:50:56
Hi,
I'm the author of Chocolate Doom, one of the other source ports that James
mentioned. This is a patch against the current SVN version of SDL 1.2 that
fixes the bug. It has been tested and hopefully should be obviously correct
from examining the changes. I'll give a brief explanation.
When the palette is set with SDL_SetPalette, the IDirectDrawPalette_SetEntries
DirectX function is invoked. However, when this happens, a WM_PALETTECHANGED
message is sent to the window.
A WM_PALETTECHANGED message can also be received if the palette is changed for
some other reason, like if the system palette is changed. Therefore, the
palette change handler (DX5_PaletteChanged) has code to deal with this case.
It distinguishes "expected" palette changes (set with SDL_SetPalette) from
"unexpected" palette changes using the colorchange_expected variable, which is
set before calling IDirectDrawPalette_SetEntries. However, the code to set
this variable is missing in the fullscreen code path. By setting this
variable, the palette change is handled properly and the freezes go away.
author | Sam Lantinga <slouken@libsdl.org> |
---|---|
date | Mon, 13 Apr 2009 00:53:12 +0000 |
parents | a1b03ba2fcd0 |
children | 453587d6dc87 |
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/* SDL - Simple DirectMedia Layer Copyright (C) 1997-2009 Sam Lantinga This library is free software; you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by the Free Software Foundation; either version 2.1 of the License, or (at your option) any later version. This library is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details. You should have received a copy of the GNU Lesser General Public License along with this library; if not, write to the Free Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA Sam Lantinga slouken@libsdl.org */ /* This header defines the current SDL version */ #ifndef _SDL_version_h #define _SDL_version_h #include "SDL_stdinc.h" #include "begin_code.h" /* Set up for C function definitions, even when using C++ */ #ifdef __cplusplus extern "C" { #endif /* Printable format: "%d.%d.%d", MAJOR, MINOR, PATCHLEVEL */ #define SDL_MAJOR_VERSION 1 #define SDL_MINOR_VERSION 2 #define SDL_PATCHLEVEL 13 typedef struct SDL_version { Uint8 major; Uint8 minor; Uint8 patch; } SDL_version; /* This macro can be used to fill a version structure with the compile-time * version of the SDL library. */ #define SDL_VERSION(X) \ { \ (X)->major = SDL_MAJOR_VERSION; \ (X)->minor = SDL_MINOR_VERSION; \ (X)->patch = SDL_PATCHLEVEL; \ } /* This macro turns the version numbers into a numeric value: (1,2,3) -> (1203) This assumes that there will never be more than 100 patchlevels */ #define SDL_VERSIONNUM(X, Y, Z) \ ((X)*1000 + (Y)*100 + (Z)) /* This is the version number macro for the current SDL version */ #define SDL_COMPILEDVERSION \ SDL_VERSIONNUM(SDL_MAJOR_VERSION, SDL_MINOR_VERSION, SDL_PATCHLEVEL) /* This macro will evaluate to true if compiled with SDL at least X.Y.Z */ #define SDL_VERSION_ATLEAST(X, Y, Z) \ (SDL_COMPILEDVERSION >= SDL_VERSIONNUM(X, Y, Z)) /* This function gets the version of the dynamically linked SDL library. it should NOT be used to fill a version structure, instead you should use the SDL_Version() macro. */ extern DECLSPEC const SDL_version * SDLCALL SDL_Linked_Version(void); /* Ends C function definitions when using C++ */ #ifdef __cplusplus } #endif #include "close_code.h" #endif /* _SDL_version_h */