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Implemented bug #2, 117: Date: Mon, 21 Mar 2005 12:06:14 +0100 From: Per Inge Mathisen Subject: Re: [SDL] Outstanding patches? The patch adds support for setting SDL_GL_SWAP_CONTROL to Windows and X11. In Windows you can also query this enum to check that it is working, or see what the default is - such functionality does not exist in GLX. For more information on the standards implemented: http://oss.sgi.com/projects/ogl-sample/registry/SGI/swap_control.txt http://oss.sgi.com/projects/ogl-sample/registry/EXT/wgl_swap_control.txt
author Sam Lantinga <slouken@libsdl.org>
date Thu, 27 Apr 2006 07:59:16 +0000
parents e5bc29de3f0a
children 546f7c1eb755
rev   line source
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1 .TH "SDL_MapRGB" "3" "Tue 11 Sep 2001, 23:01" "SDL" "SDL API Reference"
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2 .SH "NAME"
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3 SDL_MapRGB\- Map a RGB color value to a pixel format\&.
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4 .SH "SYNOPSIS"
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5 .PP
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6 \fB#include "SDL\&.h"
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7 .sp
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8 \fBUint32 \fBSDL_MapRGB\fP\fR(\fBSDL_PixelFormat *fmt, Uint8 r, Uint8 g, Uint8 b\fR);
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9 .SH "DESCRIPTION"
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10 .PP
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11 Maps the RGB color value to the specified pixel format and returns the pixel value as a 32-bit int\&.
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12 .PP
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13 If the format has a palette (8-bit) the index of the closest matching color in the palette will be returned\&.
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14 .PP
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15 If the specified pixel format has an alpha component it will be returned as all 1 bits (fully opaque)\&.
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16 .SH "RETURN VALUE"
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17 .PP
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18 A pixel value best approximating the given RGB 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)\&.
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19 .SH "SEE ALSO"
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20 .PP
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21 \fI\fBSDL_GetRGB\fP\fR, \fI\fBSDL_GetRGBA\fP\fR, \fI\fBSDL_MapRGBA\fP\fR, \fI\fBSDL_PixelFormat\fR\fR
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22 ...\" created by instant / docbook-to-man, Tue 11 Sep 2001, 23:01