annotate docs/man3/SDL_GL_GetProcAddress.3 @ 663:8bedd6d61642

Date: Sat, 2 Aug 2003 16:22:51 +0300 From: "Mike Gorchak" Subject: New patches for QNX6 Here my patches for the SDL/QNX: QNXSDL.diff - diff to non-QNX related sources: - updated BUGS file, I think QNX6 is now will be officially supported - configure.in - added shared library support for QNX, and removed dependency between the ALSA and QNX6. - SDL_audio.c - added QNX NTO sound bootstrap insted of ALSA's. - SDL_sysaudio.h - the same. - SDL_nto_audio.c - the same. - SDL_video.c - right now, QNX doesn't offer any method to obtain pointers to the OpenGL functions by function name, so they must be hardcoded in library, otherwise OpenGL will not be supported. - testsprite.c - fixed: do not draw vertical red line if we are in non-double-buffered mode. sdlqnxph.tar.gz - archive of the ./src/video/photon/* . Too many changes in code to make diffs :) : + Added stub for support hide/unhide window event + Added full YUV overlays support. + Added window maximize support. + Added mouse wheel events. + Added support for some specific key codes in Unicode mode (like ESC). + Added more checks to the all memory allocation code. + Added SDL_DOUBLEBUF support in all fullscreen modes. + Added fallback to window mode, if desired fullscreen mode is not supported. + Added stub support for the GL_LoadLibrary and GL_GetProcAddress functions. + Added resizable window support without caption. ! Fixed bug in the Ph_EV_EXPOSE event handler, when rectangles to update is 0 and when width or height of the rectangle is 0. ! Fixed bug in the event handler code. Events has not been passed to the window widget handler. ! Fixed codes for Win keys (Super/Hyper/Menu). ! Fixed memory leak, when deallocation palette. ! Fixed palette emulation code bugs. ! Fixed fullscreen and hwsurface handling. ! Fixed CLOSE button bug. First event was passed to the handler, but second terminated the application. Now all events passed to the application correctly. - Removed all printfs in code, now SDL_SetError used instead of them. - Disabled ToggleFullScreen function. README.QNX - updated README.QNX file. Added much more issues.
author Sam Lantinga <slouken@libsdl.org>
date Mon, 04 Aug 2003 00:52:42 +0000
parents e5bc29de3f0a
children 546f7c1eb755
rev   line source
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1 .TH "SDL_GL_GetProcAddress" "3" "Tue 11 Sep 2001, 23:01" "SDL" "SDL API Reference"
0
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2 .SH "NAME"
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3 SDL_GL_GetProcAddress\- Get the address of a GL function
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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 \fBvoid *\fBSDL_GL_GetProcAddress\fP\fR(\fBconst char* proc\fR);
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9 .SH "DESCRIPTION"
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10 .PP
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11 Returns the address of the GL function \fBproc\fR, or \fBNULL\fR if the function is not found\&. If the GL library is loaded at runtime, with \fI\fBSDL_GL_LoadLibrary\fP\fR, then \fIall\fP GL functions must be retrieved this way\&. Usually this is used to retrieve function pointers to OpenGL extensions\&.
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12 .SH "EXAMPLE"
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13 .PP
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14 .nf
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15 \f(CWtypedef void (*GL_ActiveTextureARB_Func)(unsigned int);
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16 GL_ActiveTextureARB_Func glActiveTextureARB_ptr = 0;
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17 int has_multitexture=1;
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18 \&.
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19 \&.
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20 \&.
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21 /* Get function pointer */
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22 glActiveTextureARB_ptr=(GL_ActiveTextureARB_Func) SDL_GL_GetProcAddress("glActiveTextureARB");
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23
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24 /* Check for a valid function ptr */
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25 if(!glActiveTextureARB_ptr){
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26 fprintf(stderr, "Multitexture Extensions not present\&.
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27 ");
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28 has_multitexture=0;
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29 }
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30 \&.
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31 \&.
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32 \&.
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33 \&.
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34 if(has_multitexture){
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35 glActiveTextureARB_ptr(GL_TEXTURE0_ARB);
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36 \&.
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37 \&.
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38 }
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39 else{
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40 \&.
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41 \&.
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42 }\fR
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43 .fi
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44 .PP
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45 .SH "SEE ALSO"
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46 .PP
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47 \fI\fBSDL_GL_LoadLibrary\fP\fR
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48 ...\" created by instant / docbook-to-man, Tue 11 Sep 2001, 23:01