Mercurial > sdl-ios-xcode
view include/SDL_config_wiz.h @ 3485:e77a69aae239
Mason Wheeler to sdl
I updated SDL, and suddenly my SDL frames stopped working. They'd "initialize" full of gibberish, and I couldn't render anything to them. After a bit of digging, I found a problem: the renderer initialization routine in my SDL frame code wasn't getting called anymore.
procedure TSdlFrame.Paint;
begin
if SDL_SelectRenderer(FWindowID) = -1 then
CreateRenderer;
SDL_RenderPresent;
end;
function TSdlFrame.CreateRenderer: boolean;
const
pf: tagPIXELFORMATDESCRIPTOR = (nSize: sizeof(pf); nVersion: 1;
dwFlags: PFD_DRAW_TO_WINDOW or PFD_SUPPORT_OPENGL or PFD_DOUBLEBUFFER;
iPixelType: PFD_TYPE_RGBA; cColorBits: 24; cAlphaBits: 8;
iLayerType: PFD_MAIN_PLANE);
RENDERERS: array[TRendererType] of AnsiString = ('software', 'gdi', 'opengl', 'd3d');
var
pFormat: integer;
begin
if (SDL_SelectRenderer(FWindowID) = 0) then
begin
result := true;
Exit;
end;
if FRendererType = rtOpenGL then
begin
pFormat := ChoosePixelFormat(canvas.Handle, @pf);
if not SetPixelFormat(canvas.Handle, pFormat, @pf) then
outputDebugString(PChar(SysErrorMessage(GetLastError)));
if wglCreateContext(canvas.Handle) = 0 then
outputDebugString(PChar(SysErrorMessage(GetLastError)));
end;
if (SDL_CreateRenderer(FWindowID, SDL_RendererIndex(RENDERERS[FRendererType]), [sdlrPresentFlip3, sdlrAccelerated]) = 0) then
begin
SDL_ShowWindow(FWindowID);
assert(SDL_SetRenderDrawColor(0, 0, 0, 255) = 0);
FFlags := SDL_GetWindowFlags(FWindowID);
if assigned(FOnAvailable) then
FOnAvailable(self);
end
else outputDebugString(pChar(format('SDL_CreateRenderer failed: %s', [sdl_GetError])));
result := SDL_SelectRenderer(FWindowID) = 0;
end;
This is a critical issue. The Paint method gets called when the control receives a WM_PAINT message from Windows. I can't create the renderer before then, or it will fail and cause trouble. And when I do create it, it needs to be created with certain parameters. So imagine my surprise when I started debugging into the DLL and found that SDL_SelectRenderer was trying to be "helpful" by creating the renderer for me if it didn't already exist! Now not only does my initialization code not get called, I end up with the wrong renderer and so things don't render as expected when I try to use the window.
| author | Sam Lantinga <slouken@libsdl.org> |
|---|---|
| date | Tue, 24 Nov 2009 04:48:12 +0000 |
| parents | ca5663493497 |
| children | 15eea7a1fa97 |
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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 */ #ifndef _SDL_config_h #define _SDL_config_h /* This is a set of defines to configure the SDL features */ /* General platform specific identifiers */ #include "SDL_platform.h" /* Make sure that this isn't included by Visual C++ */ #ifdef _MSC_VER #error You should copy include/SDL_config.h.default to include/SDL_config.h #endif #define SDL_HAS_64BIT_TYPE 1 #define SDL_BYTEORDER 1234 #define HAVE_ALLOCA_H 1 #define HAVE_SYS_TYPES_H 1 #define HAVE_STDIO_H 1 #define STDC_HEADERS 1 #define HAVE_STDLIB_H 1 #define HAVE_STDARG_H 1 #define HAVE_MALLOC_H 1 #define HAVE_MEMORY_H 1 #define HAVE_STRING_H 1 #define HAVE_STRINGS_H 1 #define HAVE_INTTYPES_H 1 #define HAVE_STDINT_H 1 #define HAVE_CTYPE_H 1 #define HAVE_MATH_H 1 #define HAVE_ICONV_H 1 #define HAVE_SIGNAL_H 1 #define HAVE_MALLOC 1 #define HAVE_CALLOC 1 #define HAVE_REALLOC 1 #define HAVE_FREE 1 #define HAVE_ALLOCA 1 #define HAVE_GETENV 1 #define HAVE_PUTENV 1 #define HAVE_UNSETENV 1 #define HAVE_QSORT 1 #define HAVE_ABS 1 #define HAVE_BCOPY 1 #define HAVE_MEMSET 1 #define HAVE_MEMCPY 1 #define HAVE_MEMMOVE 1 #define HAVE_STRLEN 1 #define HAVE_STRDUP 1 #define HAVE_STRCHR 1 #define HAVE_STRRCHR 1 #define HAVE_STRSTR 1 #define HAVE_STRTOL 1 #define HAVE_STRTOUL 1 #define HAVE_STRTOLL 1 #define HAVE_STRTOULL 1 #define HAVE_ATOI 1 #define HAVE_ATOF 1 #define HAVE_STRCMP 1 #define HAVE_STRNCMP 1 #define HAVE_STRCASECMP 1 #define HAVE_STRNCASECMP 1 #define HAVE_SSCANF 1 #define HAVE_SNPRINTF 1 #define HAVE_VSNPRINTF 1 #define HAVE_M_PI 1 #define HAVE_CEIL 1 #define HAVE_COPYSIGN 1 #define HAVE_COS 1 #define HAVE_COSF 1 #define HAVE_FABS 1 #define HAVE_FLOOR 1 #define HAVE_LOG 1 #define HAVE_SCALBN 1 #define HAVE_SIN 1 #define HAVE_SINF 1 #define HAVE_SQRT 1 #define HAVE_SIGACTION 1 #define HAVE_SETJMP 1 #define HAVE_NANOSLEEP 1 #define HAVE_POW 1 #define SDL_CDROM_DISABLED 1 #define SDL_AUDIO_DRIVER_DUMMY 1 #define SDL_AUDIO_DRIVER_OSS 1 #define SDL_INPUT_LINUXEV 1 #define SDL_INPUT_TSLIB 1 #define SDL_JOYSTICK_LINUX 1 #define SDL_HAPTIC_LINUX 1 #define SDL_LOADSO_DLOPEN 1 #define SDL_THREAD_PTHREAD 1 #define SDL_THREAD_PTHREAD_RECURSIVE_MUTEX_NP 1 #define SDL_TIMER_UNIX 1 #define SDL_VIDEO_DRIVER_DUMMY 1 #define SDL_VIDEO_DRIVER_PANDORA 1 #define SDL_VIDEO_RENDER_OGL_ES 1 #define SDL_VIDEO_OPENGL_ES 1 #endif /* _SDL_config_h */