Attachment 125302 Details for Bug 93551 – Simple LD_PRELOAD shim to apply necessary patches for divos

Simple LD_PRELOAD shim to apply necessary patches for divos

divos-hack.c (text/plain), 1.67 KB, created by Thomas J. Moore on 2016-07-24 21:36:46 UTC

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Creator: Thomas J. Moore

Created: 2016-07-24 21:36:46 UTC

Size: 1.67 KB

patch

obsolete

>/*
> * LD_PRELOAD shim which applies two patches necesary to get the game
> * Divinity: Original Sin Enhanded Edition for Linux to work with Mesa (12+)
> *
> * Build with: gcc -s -O2 -shared -fPIC -o divos-hack.{so,c} -ldl
> */
>
>/* for RTLD_NEXT */
>#ifndef _GNU_SOURCE
>#define _GNU_SOURCE
>#endif
>#include <dlfcn.h>
>#include <GL/gl.h>
>#include <string.h>
>
>#define _GLX_PUBLIC
>
>/*
> *   https://github.com/karolherbst/mesa/commit/aad2543bf6cfbd7df795d836e5ff4ec8686e4fdf
> *     - allow env override of vendor string.  I actually just hard-coded
> *       ATI Technologies, Inc., since that appears to be what's needed
> */
>const GLubyte *GLAPIENTRY glGetString( GLenum name )
>{
>    static void *next = NULL;
>    static const char *vendor = "ATI Technologies, Inc.";
>    if(name == GL_VENDOR)
>	return (const GLubyte *)vendor;
>    if(!next)
>	next = dlsym(RTLD_NEXT, "glGetString");
>    return ((const GLubyte *GLAPIENTRY (*)(GLenum))next)(name);
>}
>
>/*
> *   https://gist.github.com/karolherbst/b279233f8b13c9db1f3e1e57c6ecfbd2
> */
>_GLX_PUBLIC void (*glXGetProcAddressARB(const GLubyte * procName)) (void)
>{
>   static void *next = NULL;
>   if (strcmp((const char *) procName, "glNamedStringARB") == 0 ||
>       strcmp((const char *) procName, "glDeleteNamedStringARB") == 0 ||
>       strcmp((const char *) procName, "glCompileShaderIncludeARB") == 0 ||
>       strcmp((const char *) procName, "glIsNamedStringARB") == 0 ||
>       strcmp((const char *) procName, "glGetNamedStringARB") == 0 ||
>       strcmp((const char *) procName, "glGetNamedStringivARB") == 0)
>      return NULL;
>   if(!next)
>	next = dlsym(RTLD_NEXT, "glXGetProcAddressARB");
>    return ((_GLX_PUBLIC void (*(*)(const GLubyte *))(void))next)(procName);
>}

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Attachments on bug 93551: 125302 | 125311 | 143089 | 143100 | 143118

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