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annotate docs/man3/SDL_MapRGB.3 @ 866:0a45995a7fc3

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Date: Tue, 2 Mar 2004 11:34:54 +0100 From: Bartosz Fenski aka fEnIo Subject: outdated entry in INSTALL file I've just found in INSTALL file: If you are cross-compiling from Linux to Win32, you should read the file README.Win32 But you don't shipped this file with SDL. I've found in CVS logs that this file has been deleted and this information is now in FAQ.
author Sam Lantinga <slouken@libsdl.org>
date Tue, 02 Mar 2004 13:01:02 +0000
parents e5bc29de3f0a
children 546f7c1eb755
rev   line source
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e5bc29de3f0a Updated from the SDL Documentation Project
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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