# PVRTrace on Windows **URL:** \ **Category:** PowerVR Insider\ **Tags:** pvrvframe, pvrtrace\ **Created:** [July 4, 2012, 12:37pm UTC](https://forums.imgtec.com/t/pvrtrace-on-windows/1465 "2012-07-04T12:37:39Z")\ **Posts on this page:** 7\ **Page:** 1
**Author:** ![presbywf](https://avatars.discourse-cdn.com/v4/letter/p/ecb155/32.png) [@presbywf](https://forums.imgtec.com/u/presbywf)\ **Post date:** [July 4, 2012, 12:37pm UTC](https://forums.imgtec.com/t/pvrtrace-on-windows/1465/1 "2012-07-04T12:37:39Z")
I’m having a bit of trouble getting PVRTrace to run on Windows with PVRFrame; I am using OpenGL 1.1.  My application runs fine with libEGL.dll and libGLES\_CM.dll - have both of these in my %SYSTEMDIR% path. To use PVRTrace I add the 4 required dll’s into my executable directory:  libEGL.dll, libgles\_cm.dll, libGLESv1\_CM.dll, and PVRTrace.dll.  I then create a pvrtrace.cfg file and point EglLibraryPath and Es1LibraryPath to the %SYSTEMDIR% versions of the files. Then when I run, I get an error that says “The ordinal 204 could not be located in the dynamic link library libGLES\_CM.dll”. Using dumpbin.exe it’s clear that this ordinal does not exist in the PVRTrace version of the DLL, but does exist in the PVRFrame version.  In face, PVRTrace.dll only has ordinals up to ~170, while PVRFrame goes up to ~220. Am I setting this up wrong?  I must be missing an important step. ---
**Author:** ![dgonzalez](https://avatars.discourse-cdn.com/v4/letter/d/76d3ee/32.png) [@dgonzalez](https://forums.imgtec.com/u/dgonzalez)\ **Post date:** [July 4, 2012, 12:58pm UTC](https://forums.imgtec.com/t/pvrtrace-on-windows/1465/2 "2012-07-04T12:58:14Z")
Hi presbywf, Could you print your pvrtrace.cfg file please? I think you could have a problem with the dll used: _Example:_ EglLibraryPath = Z:PVRFrameReleaseOGLES2libEGL.dll Es1LibraryPath = Z:PVRFrameReleaseOGLES1libGLES\_CM.dll Es2LibraryPath = Z:PVRFrameReleaseOGLES2libGLESv2.dll Please, check the name and we recommend to set Es2LibraryPath too, even if your application does not use it. Regards, David ---
**Author:** ![presbywf](https://avatars.discourse-cdn.com/v4/letter/p/ecb155/32.png) [@presbywf](https://forums.imgtec.com/u/presbywf)\ **Post date:** [July 4, 2012, 1:07pm UTC](https://forums.imgtec.com/t/pvrtrace-on-windows/1465/3 "2012-07-04T13:07:36Z")
Hi David.  My pvrtrace.cfg is as follows: EglLibraryPath = F:OpenGLPVRVFrame\_REL\_2.10@869778.tarPVRVFrameOGLES-1.1Windows\_x86\_32libEGL.dll Es1LibraryPath = F:OpenGLPVRVFrame\_REL\_2.10@869778.tarPVRVFrameOGLES-1.1Windows\_x86\_32libgles\_cm.dll Es2LibraryPath = F:OpenGLPVRVFrame\_REL\_2.10@869778.tarPVRVFrameOGLES-2.0Windows\_x86\_32libGLESv2.dll TraceFile = trace.pvrt RecordData = 0 StartFrame = 0 EndFrame = 100 I am pointing to the DLL’s directly from the PVRVFrame download from this website.  I have tried other directories as well, such as %SYSTEMDIR%libEGL.dll, etc. ---
**Author:** ![dgonzalez](https://avatars.discourse-cdn.com/v4/letter/d/76d3ee/32.png) [@dgonzalez](https://forums.imgtec.com/u/dgonzalez)\ **Post date:** [July 4, 2012, 1:53pm UTC](https://forums.imgtec.com/t/pvrtrace-on-windows/1465/4 "2012-07-04T13:53:54Z")
Hi presbywf, Is your app using glCurrentPaletteMatrixOES?  To use any extension you should get the pointer with eglGetProcAddress() and not calling directly the function.  PVRVFrame allows to calls some functions directly but it is not going to work on the devices (they are DEV-Backdoors). Is this your case? Regards, David ---
**Author:** ![presbywf](https://avatars.discourse-cdn.com/v4/letter/p/ecb155/32.png) [@presbywf](https://forums.imgtec.com/u/presbywf)\ **Post date:** [July 4, 2012, 3:34pm UTC](https://forums.imgtec.com/t/pvrtrace-on-windows/1465/5 "2012-07-04T15:34:52Z")
Hi David - you are right, we were directly calling glCurrentPaletteMatrixOES.  I changed the code to use eglGetProcAddress and everything works fine now. Thanks for your help! ---
**Author:** ![presbywf](https://avatars.discourse-cdn.com/v4/letter/p/ecb155/32.png) [@presbywf](https://forums.imgtec.com/u/presbywf)\ **Post date:** [July 4, 2012, 3:43pm UTC](https://forums.imgtec.com/t/pvrtrace-on-windows/1465/6 "2012-07-04T15:43:00Z")
I spoke too soon.  The TTY output prints: Error loading library eglBindTexImageError loading library eglBindTexImage Error loading library eglReleaseTexImageError loading library eglReleaseTexImage Error loading library eglSurfaceAttribError loading library eglSurfaceAttrib Error loading library eglSwapIntervalError loading library eglSwapInterval Error loading library eglBindAPIError loading library eglBindAPI Error loading library eglCreatePbufferFromClientBufferError loading library eglC reatePbufferFromClientBuffer Error loading library eglQueryAPIError loading library eglQueryAPI Error loading library eglReleaseThreadError loading library eglReleaseThread Error loading library eglWaitClientError loading library eglWaitClient PVRTrace EGL - ERROR: failed to load entry points from host library Please check library paths in pvrtrace.cfg PVRTrace EGL - ERROR: failed to load entry points from host library Please check library paths in pvrtrace.cfg PVRTrace - aborting PVRTrace - aborting The app will then crash when calling eglGetDisplay. This is expected output? ---
**Author:** ![dgonzalez](https://avatars.discourse-cdn.com/v4/letter/d/76d3ee/32.png) [@dgonzalez](https://forums.imgtec.com/u/dgonzalez)\ **Post date:** [July 5, 2012, 7:14am UTC](https://forums.imgtec.com/t/pvrtrace-on-windows/1465/7 "2012-07-05T07:14:27Z")
Hi presbywf, We think there is a problem with the libEGL.dll used. Could you try to use the  OGLES2  libEGL.dll version? EglLibraryPath = F:OpenGLPVRVFrame\_REL\_2.10@869778.tarPVRVFrameOGLES-2.0 Windows\_x86\_32libEGL.dll Es1LibraryPath = F:OpenGLPVRVFrame\_REL\_2.10@869778.tarPVRVFrameOGLES-1.1Windows\_x86\_32libgles\_cm.dll Es2LibraryPath = F:OpenGLPVRVFrame\_REL\_2.10@869778.tarPVRVFrameOGLES-2.0Windows\_x86\_32libGLESv2.dll Thank you. Regards, David