#define _GNU_SOURCE
#include "ghf/ghf.h"
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <dlfcn.h>
#include <link.h>
#include <GL/gl.h>
#include <GL/glu.h>
#include <GL/glx.h>
typedef enum qlhGameType_s {
MODE_NOTSET,
MODE_NOTEAM,
MODE_TDM,
MODE_CTF,
MODE_CA
} qlhGameType_t;
qlhGameType_t gametype;
unsigned long curBindTexture;
void (*orig_glBindTexture)(GLenum target, GLuint texture);
void hook_glBindTexture(GLenum target, GLuint texture);
void (*orig_glDrawElements)(GLenum mode, GLsizei count, GLenum type, const GLvoid *indices);
void hook_glDrawElements (GLenum mode, GLsizei count, GLenum type, const GLvoid *indices);
void (*orig_glReadPixels)(GLint x, GLint y, GLsizei width, GLsizei height, GLenum format, GLenum type, GLvoid *pixels);
void hook_glReadPixels(GLint x, GLint y, GLsizei width, GLsizei height, GLenum format, GLenum type, GLvoid *pixels);
void *dlsym_hook(void *handle, const char *symbol);
typedef void*(*dlsym_t)(void *handle, const char *symbol);
dlsym_t orig_dlsym;
void __attribute__ ((constructor)) q2hack_init (void)
{
gametype=MODE_NOTSET; //it's not a good place to do it, isn't it ? :)
orig_dlsym = detourFunction((void*)dlsym, (void*)&dlsym_hook);
}
void *dlsym_hook(void *handle, const char *symbol)
{
void *result = orig_dlsym(handle, symbol);
if(strstr(symbol, "glBindTexture"))
{
orig_glBindTexture = result;
return hook_glBindTexture;
}
else if(strstr(symbol, "glDrawElements"))
{
orig_glDrawElements = result;
return hook_glDrawElements;
}
else if(strstr(symbol, "glReadPixels"))
{
orig_glReadPixels = result;
return hook_glReadPixels;
}
return result;
}
void hook_glBindTexture(GLenum target, GLuint texture)
{
/* Thanks to Sinner at www.aimbots.net for pointing this out */
asm ("movl %%esi, %0;" : "=r"(curBindTexture));
orig_glBindTexture(target, texture);
}
void hook_glDrawElements (GLenum mode, GLsizei count, GLenum type, const GLvoid *indices)
{
int colortype;
if(curBindTexture > 0x1000)
{
// if(strstr((char*)curBindTexture, "ui/assets/hud"))
// printf("%s\n", (char*)curBindTexture);
// detect game type by hud icon
if(gametype==MODE_NOTSET) {
if(strstr((char*)curBindTexture, "ui/assets/hud/tdm.tga"))
gametype=MODE_TDM;
else if(strstr((char*)curBindTexture, "ui/assets/hud/ctf.tga"))
gametype=MODE_CTF;
else if(strstr((char*)curBindTexture, "ui/assets/hud/ca.tga"))
gametype=MODE_CA;
else if(strstr((char*)curBindTexture, "ui/assets/hud/tourn.tga"))
gametype=MODE_NOTEAM;
else if(strstr((char*)curBindTexture, "ui/assets/hud/dm.tga"))
gametype=MODE_NOTEAM;
}
if(strstr((char*)curBindTexture, "models/players") && !strstr((char*)curBindTexture, "icon"))
{
glEnable(GL_COLOR_MATERIAL);
glDisableClientState(GL_COLOR_ARRAY);
glDisable(GL_DEPTH_TEST);
glDisable(GL_TEXTURE_2D);
colortype=0;
if(gametype!=MODE_NOTEAM) {
if(strstr((char*)curBindTexture, "/red.tga") || strstr((char*)curBindTexture, "/red_"))
colortype=1;
else if(strstr((char*)curBindTexture, "/blue.tga") || strstr((char*)curBindTexture, "/blue_"))
colortype=2;
}
switch(colortype){
case 1:
glColor3ub(255, 0, 0);
break;
case 2:
glColor3ub(0, 0, 255);
break;
default:
glColor3ub(255,255, 0);
break;
}
glDrawElements(mode, count, type, indices);
glEnable(GL_DEPTH_TEST);
glEnable(GL_TEXTURE_2D);
switch(colortype){
case 1:
glColor3ub(255, 0, 0);
break;
case 2:
glColor3ub(0, 0, 255);
break;
default:
glColor3ub(0, 255, 0);
break;
}
glEnable(GL_BLEND);
glBlendFunc(GL_ONE, GL_ZERO);
glDrawElements(mode, count, type, indices);
glEnableClientState(GL_COLOR_MATERIAL);
glDisable(GL_BLEND);
}
}
orig_glDrawElements(mode, count, type, indices);
}
void hook_glReadPixels(GLint x, GLint y, GLsizei width, GLsizei height, GLenum format, GLenum type, GLvoid *pixels)
{
/* Don't do anything for blank PBSS :o */
orig_glReadPixels(x, y, width, height, format, type, pixels);
}
