Mercurial > sdl-ios-xcode
annotate docs/man3/SDL_VideoModeOK.3 @ 1057:e9d23bb80140
Date: Mon, 02 May 2005 04:23:16 -0500
From: Jonathan Atkins
Subject: Re: [PATCH] *CRITICAL* 8bit direct RGB palette not being created
I think that SDL_AllocFormat should create the palette for all 8bit
surfaces. And when the RGBAmasks match the normal 3:3:2:0 we need to
apply the old behavior. If the mask doesn't match that, then we need
to make the right palette assuming the masks are valid (I don't think
we validate any masks for high color surfaces...so we wouldn't here)
Then there's always a palette available for the 8bit surfaces.
This restores the normal behavior and allows for masks to create
palettes automatically for odd masks even, which would be a neato
thing to have in there, as SDL never did this before.
| author | Sam Lantinga <slouken@libsdl.org> |
|---|---|
| date | Mon, 16 May 2005 05:34:58 +0000 |
| parents | e5bc29de3f0a |
| children | 546f7c1eb755 |
| rev | line source |
|---|---|
|
181
e5bc29de3f0a
Updated from the SDL Documentation Project
Sam Lantinga <slouken@libsdl.org>
parents:
55
diff
changeset
|
1 .TH "SDL_VideoModeOK" "3" "Tue 11 Sep 2001, 23:01" "SDL" "SDL API Reference" |
| 0 | 2 .SH "NAME" |
| 3 SDL_VideoModeOK\- Check to see if a particular video mode is supported\&. | |
| 4 .SH "SYNOPSIS" | |
| 5 .PP | |
| 6 \fB#include "SDL\&.h" | |
| 7 .sp | |
| 8 \fBint \fBSDL_VideoModeOK\fP\fR(\fBint width, int height, int bpp, Uint32 flags\fR); | |
| 9 .SH "DESCRIPTION" | |
| 10 .PP | |
| 11 \fBSDL_VideoModeOK\fP returns \fB0\fR if the requested mode is not supported under any bit depth, or returns the bits-per-pixel of the closest available mode with the given width, height and requested \fIsurface\fR flags (see \fI\fBSDL_SetVideoMode\fP\fR)\&. | |
| 12 .PP | |
| 13 The bits-per-pixel value returned is only a suggested mode\&. You can usually request and bpp you want when \fIsetting\fR the video mode and SDL will emulate that color depth with a shadow video surface\&. | |
| 14 .PP | |
| 15 The arguments to \fBSDL_VideoModeOK\fP are the same ones you would pass to \fISDL_SetVideoMode\fR | |
| 16 .SH "EXAMPLE" | |
| 17 .PP | |
| 18 .nf | |
| 19 \f(CWSDL_Surface *screen; | |
| 20 Uint32 bpp; | |
| 21 \&. | |
| 22 \&. | |
| 23 \&. | |
| 24 printf("Checking mode 640x480@16bpp\&. | |
| 25 "); | |
| 26 bpp=SDL_VideoModeOK(640, 480, 16, SDL_HWSURFACE); | |
| 27 | |
| 28 if(!bpp){ | |
| 29 printf("Mode not available\&. | |
| 30 "); | |
| 31 exit(-1); | |
| 32 } | |
| 33 | |
| 34 printf("SDL Recommends 640x480@%dbpp\&. | |
| 35 ", bpp); | |
| 36 screen=SDL_SetVideoMode(640, 480, bpp, SDL_HWSURFACE); | |
| 37 \&. | |
| 38 \&.\fR | |
| 39 .fi | |
| 40 .PP | |
| 41 .SH "SEE ALSO" | |
| 42 .PP | |
| 43 \fI\fBSDL_SetVideoMode\fP\fR, \fI\fBSDL_GetVideoInfo\fP\fR | |
|
181
e5bc29de3f0a
Updated from the SDL Documentation Project
Sam Lantinga <slouken@libsdl.org>
parents:
55
diff
changeset
|
44 ...\" created by instant / docbook-to-man, Tue 11 Sep 2001, 23:01 |