Mercurial > sdl-ios-xcode
annotate docs/man3/SDL_MapRGBA.3 @ 19:8cc4dbfab9ab
Date: Thu, 19 Apr 2001 08:36:54 +0300
From: "Mike Gorchak" <mike@malva.com.ua>
Subject: Patches for QNX RtP
Here my patch for QNX RtP/Photon for SDL-1.2.
Detailed description of my changes:
SDL/configure.in:
If Photon detected declare define ENABLE_PHOTON.
SDL/src/video/SDL_sysvideo.h:
Added extern to ph_bootstrap.
SDL/src/video/SDL_video.c:
Added ph_bootstrap to bootstrap array.
SDL/src/video/photon/SDL_ph_events.c:
Declare DISABLE_X11 if compiled for Photon.
SDL/src/video/photon/SDL_ph_image.c:
Fixed segment violation on exit. Please update BUGS file.
SDL/src/video/photon/SDL_ph_video.c:
1. Enabling window manager.
2. Added to device capabilities Photon Window Manager functions:
SetCaption and IconifyWindow.
3. Renamed X11_bootstrap to ph_bootstrap.
4. Removed SEGFAULT termination of programs if Photon not available.
SDL/src/video/photon/SDL_ph_wm.c:
1. Declare DISABLE_X11 if compiled for Photon.
2. Added ph_SetCaption and ph_IconifyWindow code. (Thanks to
'phearbear' for iconify window source).
3. Some stubers for other wm functions.
Thanks !
----------------------------
Mike Gorchak
CJSC Malva
System Programmer
author | Sam Lantinga <slouken@lokigames.com> |
---|---|
date | Thu, 10 May 2001 18:42:17 +0000 |
parents | 74212992fb08 |
children | 55f1f1b3e27d |
rev | line source |
---|---|
0 | 1 .TH "SDL_MapRGBA" "3" "Mon 12 Mar 2001, 01:04" "SDL" "SDL API Reference" |
2 .SH "NAME" | |
3 SDL_MapRGBA\- Map a RGBA color value to a pixel format\&. | |
4 .SH "SYNOPSIS" | |
5 .PP | |
6 \fB#include "SDL\&.h" | |
7 .sp | |
8 \fBUint32 \fBSDL_MapRGBA\fP\fR(\fBSDL_PixelFormat *fmt, Uint8 r, Uint8 g, Uint8 b, Uint8 a\fR); | |
9 .SH "DESCRIPTION" | |
10 .PP | |
11 Maps the RGBA color value to the specified pixel format and returns the pixel value as a 32-bit int\&. | |
12 .PP | |
13 If the format has a palette (8-bit) the index of the closest matching color in the palette will be returned\&. | |
14 .PP | |
15 If the specified pixel format has no alpha component the alpha value will be ignored (as it will be in formats with a palette)\&. | |
16 .SH "RETURN VALUE" | |
17 .PP | |
18 A pixel value best approximating the given RGBA color value for a given pixel format\&. If the pixel format bpp (color depth) is less than 32-bpp then the unused upper bits of the return value can safely be ignored (e\&.g\&., with a 16-bpp format the return value can be assigned to a \fBUint16\fP, and similarly a \fBUint8\fP for an 8-bpp format)\&. | |
19 .SH "SEE ALSO" | |
20 .PP | |
21 \fISDL_GetRGB\fR, \fISDL_GetRGBA\fR, \fISDL_MapRGB\fR, \fISDL_PixelFormat\fR | |
22 ...\" created by instant / docbook-to-man, Mon 12 Mar 2001, 01:04 |