flavors/gles2/source/glwrap_funcs.c

   1 /* $Id$
   2
   3 This file is part of gldbg
   4 Copyright © 2010  Mikko Rasa, Mikkosoft Productions
   5 Distributed under the GPL
   6 */
   7
   8 #include <dlfcn.h>
   9 #include "arraysize.h"
  10 #include "functions.h"
  11 #include "glwrap.h"
  12 #include "opengl.h"
  13 #include "packet.h"
  14
  15 GLenum cur_error = GL_NO_ERROR;
  16
  17 static void check_error()
  18 {
  19         GLenum (*orig_glGetError)() = NULL;
  20         GLenum code;
  21
  22         if(!orig_glGetError)
  23                 orig_glGetError = glsym("glGetError");
  24
  25         code = orig_glGetError();
  26         if(code!=GL_NO_ERROR)
  27         {
  28                 GlPacket *pkt;
  29
  30                 pkt = packet_begin(FUNC_GLDERROR);
  31                 packet_write_int(pkt, code);
  32                 packet_send(pkt, get_out_fd());
  33
  34                 if(cur_error==GL_NO_ERROR)
  35                         cur_error = code;
  36         }
  37 }
  38
  39 GLenum APIENTRY glGetError()
  40 {
  41         GLenum ret = cur_error;
  42         cur_error = GL_NO_ERROR;
  43         GlPacket *pkt;
  44
  45         pkt = packet_begin(FUNC_GLGETERROR);
  46         packet_write_int(pkt, ret);
  47         packet_send(pkt, get_out_fd());
  48
  49         return ret;
  50 }
  51
  52 void (*eglGetProcAddress(const char *procname))(void)
  53 {
  54         void *handle = NULL;
  55         void (*ret)() = NULL;
  56         GlPacket *pkt;
  57
  58         if(glsym((const char *)procname))
  59         {
  60                 handle = dlopen(NULL, RTLD_LAZY);
  61                 ret = dlsym(handle, (const char *)procname);
  62         }
  63
  64         pkt = packet_begin(FUNC_EGLGETPROCADDRESS);
  65         packet_write_pointer(pkt, ret);
  66         packet_write_string(pkt, (const char *)procname);
  67         packet_send(pkt, get_out_fd());
  68
  69         return ret;
  70 }
  71
  72 #include "gensrc/glwrap.funcs"