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Date: Mon, 24 Jan 2005 21:37:56 +0800 From: Chris Taylor Subject: Patch to put back dynamic OpenGL loading for MPW I sent a patch a while ago that removes dynamic OpenGL loading for Macintosh Programmer's Workshop. Dynamic loading DOES actually work when an SDL program is built with MPW, it just has to be set up for it. (Whoops!!) This is the ideal way to get OpenGL extensions to work, which D2X uses quite a few of. This patch puts dynamic loading back in SDL for Mac OS 9. It applies to current CVS. I noticed that two members need to be set when DrawSprocket is used.
author Sam Lantinga <slouken@libsdl.org>
date Tue, 25 Jan 2005 16:57:11 +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_MapRGBA" "3" "Tue 11 Sep 2001, 23:01" "SDL" "SDL API Reference"
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2 .SH "NAME"
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3 SDL_MapRGBA\- Map a RGBA 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_MapRGBA\fP\fR(\fBSDL_PixelFormat *fmt, Uint8 r, Uint8 g, Uint8 b, Uint8 a\fR);
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9 .SH "DESCRIPTION"
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10 .PP
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11 Maps the RGBA 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 no alpha component the alpha value will be ignored (as it will be in formats with a palette)\&.
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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 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)\&.
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19 .SH "SEE ALSO"
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20 .PP
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21 \fISDL_GetRGB\fR, \fISDL_GetRGBA\fR, \fISDL_MapRGB\fR, \fISDL_PixelFormat\fR
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22 ...\" created by instant / docbook-to-man, Tue 11 Sep 2001, 23:01