Mercurial > sdl-ios-xcode
annotate docs/man3/SDL_ConvertSurface.3 @ 890:416158ec61a0
Date: Sat, 10 Apr 2004 10:05:46 +0200
From: Christian Walther
Subject: [SDL] OpenGL Accumulation Buffer on Mac OS X
Is there a reason for not having OpenGL accumulation buffer support in
SDL 1.2.7 (and as far as I have checked also in the current CVS) on Mac OS
X?
Maybe I am doing something wrong, but it seems very easy to add (at least
it works for for me in 10.3.3) - just add
if ( this->gl_config.accum_red_size + this->gl_config.accum_green_size + this->gl_config.accum_blue_size + this->gl_config.accum_alpha_size > 0) {
attr[i++] = NSOpenGLPFAAccumSize;
attr[i++] = this->gl_config.accum_red_size + this->gl_config.accum_green_size + this->gl_config.accum_blue_size + this->gl_config.accum_alpha_size;
}
to QZ_SetupOpenGL() in SDL_QuartzGL.m
| author | Sam Lantinga <slouken@libsdl.org> |
|---|---|
| date | Sun, 16 May 2004 18:06:27 +0000 |
| parents | e5bc29de3f0a |
| children | 546f7c1eb755 |
| rev | line source |
|---|---|
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parents:
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1 .TH "SDL_ConvertSurface" "3" "Tue 11 Sep 2001, 23:01" "SDL" "SDL API Reference" |
| 0 | 2 .SH "NAME" |
| 3 SDL_ConvertSurface\- Converts a surface to the same format as another surface\&. | |
| 4 .SH "SYNOPSIS" | |
| 5 .PP | |
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6 \fB#include "SDL/SDL\&.h" |
| 0 | 7 .sp |
| 8 \fBSDL_Surface *\fBSDL_ConvertSurface\fP\fR(\fBSDL_Surface *src, SDL_PixelFormat *fmt, Uint32 flags\fR); | |
| 9 .SH "DESCRIPTION" | |
| 10 .PP | |
| 11 Creates a new surface of the specified format, and then copies and maps the given surface to it\&. If this function fails, it returns \fBNULL\fP\&. | |
| 12 .PP | |
| 13 The \fBflags\fR parameter is passed to \fI\fBSDL_CreateRGBSurface\fP\fR and has those semantics\&. | |
| 14 .PP | |
| 15 This function is used internally by \fI\fBSDL_DisplayFormat\fP\fR\&. | |
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16 .PP |
|
e5bc29de3f0a
Updated from the SDL Documentation Project
Sam Lantinga <slouken@libsdl.org>
parents:
55
diff
changeset
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17 This function can only be called after SDL_Init\&. |
| 0 | 18 .SH "RETURN VALUE" |
| 19 .PP | |
| 20 Returns either a pointer to the new surface, or \fBNULL\fP on error\&. | |
| 21 .SH "SEE ALSO" | |
| 22 .PP | |
| 23 \fI\fBSDL_CreateRGBSurface\fP\fR, \fI\fBSDL_DisplayFormat\fP\fR, \fI\fBSDL_PixelFormat\fR\fR, \fI\fBSDL_Surface\fR\fR | |
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24 ...\" created by instant / docbook-to-man, Tue 11 Sep 2001, 23:01 |