Tessellator failing on master iOS Nightly

[jvcleave]

on the iOS nightly with polygonExample ofGLRenderer.cpp fails on line 182

glDrawElements(drawMode, 
               vertexData.getNumIndices(), 
               GL_UNSIGNED_SHORT,
               vertexData.getIndexPointer());

As I remember from another issue this may be related to the Tessellator?

0.9.8 works fine so maybe glm is involved?

[ error ] ofTessellator: performTessellation(): mesh polygon tessellation failed, winding mode 0
[ error ] ofTessellator: performTessellation(): mesh polygon tessellation failed, winding mode 0
[ error ] ofTessellator: performTessellation(): mesh polygon tessellation failed, winding mode 0
(lldb) bt
* thread #1: tid = 0x2e3653, 0x000000011edbde71 GLEngine`gleRunVertexSubmitImmediate + 9137, queue = 'com.apple.main-thread', stop reason = EXC_BAD_ACCESS (code=1, address=0x6100002b69fc)
    frame #0: 0x000000011edbde71 GLEngine`gleRunVertexSubmitImmediate + 9137
    frame #1: 0x000000011ed5b737 GLEngine`glDrawElements_IMM_Exec + 899
  * frame #2: 0x000000010c2a6d9d polygonExample`ofGLRenderer::draw(this=0x00007fa99f805c00, vertexData=0x00007fa99f8076f8, renderType=OF_MESH_FILL, useColors=true, useTextures=true, useNormals=true)0>, glm::tvec3<float, (glm::precision)0>, ofColor_<float>, glm::tvec2<float, (glm::precision)0> > const&, ofPolyRenderMode, bool, bool, bool) const + 1373 at ofGLRenderer.cpp:182
    frame #3: 0x000000010c38d7c2 polygonExample`ofBaseRenderer::draw(this=0x00007fa99f805c00, mesh=0x00007fa99f8076f8, renderType=OF_MESH_FILL)0>, glm::tvec3<float, (glm::precision)0>, ofColor_<float>, glm::tvec2<float, (glm::precision)0> > const&, ofPolyRenderMode) const + 146 at ofBaseTypes.cpp:151
    frame #4: 0x000000010c2a776e polygonExample`ofGLRenderer::draw(this=0x00007fa99f805c00, shape=0x00007fa99f807698) const + 270 at ofGLRenderer.cpp:290
    frame #5: 0x000000010c3678c6 polygonExample`ofEndShape(bClose=false) + 134 at ofGraphics.cpp:1239
    frame #6: 0x000000010c233fd9 polygonExample`ofApp::draw(this=0x00006300001a10a0) + 2985 at ofApp.mm:255
    frame #7: 0x000000010c230d55 polygonExample`ofBaseApp::draw(this=0x00006300001a10a0, args=0x000000010c4d5868) + 37 at ofBaseApp.h:68
    frame #8: 0x000000010c4303c1 polygonExample`std::__1::shared_ptr<of::priv::Function<ofEventArgs, std::__1::recursive_mutex> > ofEvent<ofEventArgs, std::__1::recursive_mutex>::make_function<ofBaseApp>(this=0x000063000012e958, (null)=0x0000000000000000, t=0x000000010c4d5868)(ofEventArgs&), int)::'lambda'(void const*, ofEventArgs&)::operator()(void const*, ofEventArgs&) const + 113 at ofEvent.h:439
    frame #9: 0x000000010c430340 polygonExample`bool std::__1::__invoke_void_return_wrapper<bool>::__call<std::__1::shared_ptr<of::priv::Function<ofEventArgs, std::__1::recursive_mutex> > ofEvent<ofEventArgs, std::__1::recursive_mutex>::make_function<ofBaseApp>(ofBaseApp*, void (ofBaseApp::*)(ofEventArgs&), int)::'lambda'(void const*, ofEventArgs&)&, void const*, ofEventArgs&>(std::__1::shared_ptr<of::priv::Function<ofEventArgs, std::__1::recursive_mutex> > ofEvent<ofEventArgs, std::__1::recursive_mutex>::make_function<ofBaseApp>(ofBaseApp*, void (ofBaseApp::*)(ofEventArgs&), int)::'lambda'(void const*, ofEventArgs&)&&&, void const*&&, ofEventArgs&&&) [inlined] decltype(__f=0x000063000012e958, __args=0x00007fff539cdd10, __args=0x000000010c4d5868)(std::__1::forward<void const*, ofEventArgs&>(fp0))) std::__1::__invoke<std::__1::shared_ptr<of::priv::Function<ofEventArgs, std::__1::recursive_mutex> > ofEvent<ofEventArgs, std::__1::recursive_mutex>::make_function<ofBaseApp>(ofBaseApp*, void (ofBaseApp::*)(ofEventArgs&), int)::'lambda'(void const*, ofEventArgs&)&, void const*, ofEventArgs&>(ofBaseApp&&, void const*&&, ofEventArgs&&&) + 112 at __functional_base:416
    frame #10: 0x000000010c430314 polygonExample`bool std::__1::__invoke_void_return_wrapper<bool>::__call<std::__1::shared_ptr<of::priv::Function<ofEventArgs, std::__1::recursive_mutex> > ofEvent<ofEventArgs, std::__1::recursive_mutex>::make_function<ofBaseApp>(__args=0x000063000012e958, __args=0x00007fff539cdd10, __args=0x000000010c4d5868)(ofEventArgs&), int)::'lambda'(void const*, ofEventArgs&)&, void const*, ofEventArgs&>(std::__1::shared_ptr<of::priv::Function<ofEventArgs, std::__1::recursive_mutex> > ofEvent<ofEventArgs, std::__1::recursive_mutex>::make_function<ofBaseApp>(ofBaseApp*, void (ofBaseApp::*)(ofEventArgs&), int)::'lambda'(void const*, ofEventArgs&)&&&, void const*&&, ofEventArgs&&&) + 68 at __functional_base:437
    frame #11: 0x000000010c4301b9 polygonExample`std::__1::__function::__func<std::__1::shared_ptr<of::priv::Function<ofEventArgs, std::__1::recursive_mutex> > ofEvent<ofEventArgs, std::__1::recursive_mutex>::make_function<ofBaseApp>(ofBaseApp*, void (ofBaseApp::*)(ofEventArgs&), int)::'lambda'(void const*, ofEventArgs&), std::__1::allocator<std::__1::shared_ptr<of::priv::Function<ofEventArgs, std::__1::recursive_mutex> > ofEvent<ofEventArgs, std::__1::recursive_mutex>::make_function<ofBaseApp>(ofBaseApp*, void (ofBaseApp::*)(ofEventArgs&), int)::'lambda'(void const*, ofEventArgs&)>, bool (void const*, ofEventArgs&)>::operator(this=0x000063000012e950, __arg=0x00007fff539cdd10, __arg=0x000000010c4d5868)(void const*&&, ofEventArgs&) + 73 at functional:1437
    frame #12: 0x000000010c28dc44 polygonExample`std::__1::function<bool (void const*, ofEventArgs&)>::operator(this=0x000063000012e950, __arg=0x0000000000000000, __arg=0x000000010c4d5868)(void const*, ofEventArgs&) const + 180 at functional:1817
    frame #13: 0x000000010c28d32d polygonExample`of::priv::Function<ofEventArgs, std::__1::recursive_mutex>::notify(this=0x000063000012e940, s=0x0000000000000000, t=0x000000010c4d5868) + 125 at ofEvent.h:90
    frame #14: 0x000000010c28d0e4 polygonExample`ofEvent<ofEventArgs, std::__1::recursive_mutex>::notify(this=0x00007fa998e00b78, param=0x000000010c4d5868) + 644 at ofEvent.h:538
    frame #15: 0x000000010c2847cd polygonExample`bool ofNotifyEvent<ofEvent<ofEventArgs, std::__1::recursive_mutex>, ofEventArgs>(event=0x00007fa998e00b78, args=0x000000010c4d5868) + 29 at ofEventUtils.h:214
    frame #16: 0x000000010c28483d polygonExample`ofCoreEvents::notifyDraw(this=0x00007fa998e00b58) + 45 at ofEvents.cpp:260
    frame #17: 0x000000010c45fd9d polygonExample`::-[ofxiOSEAGLView drawView](self=0x00007fa998e03bc0, _cmd="drawView") + 349 at ofxiOSEAGLView.mm:183
    frame #18: 0x000000010c419277 polygonExample`-[EAGLView drawView:](self=0x00007fa998e03bc0, _cmd="drawView:", sender=0x0000658000171640) + 39 at EAGLView.m:181
    frame #19: 0x000000010cbe18d4 Foundation`__NSFireTimer + 83
    frame #20: 0x000000011068edb4 CoreFoundation`__CFRUNLOOP_IS_CALLING_OUT_TO_A_TIMER_CALLBACK_FUNCTION__ + 20
    frame #21: 0x000000011068ea43 CoreFoundation`__CFRunLoopDoTimer + 1075
    frame #22: 0x000000011068e5ca CoreFoundation`__CFRunLoopDoTimers + 250
    frame #23: 0x00000001106862f1 CoreFoundation`__CFRunLoopRun + 2065
    frame #24: 0x0000000110685884 CoreFoundation`CFRunLoopRunSpecific + 420
    frame #25: 0x000000011149aa6f GraphicsServices`GSEventRunModal + 161
    frame #26: 0x000000010d0aac68 UIKit`UIApplicationMain + 159
    frame #27: 0x000000010c459bb5 polygonExample`ofAppiOSWindow::startAppWithDelegate(appDelegateClassName="ofxiOSAppDelegate") + 309 at ofAppiOSWindow.mm:137
    frame #28: 0x000000010c459a48 polygonExample`ofAppiOSWindow::loop() + 40 at ofAppiOSWindow.mm:122
    frame #29: 0x000000010c4226da polygonExample`void std::__1::__invoke_void_return_wrapper<void>::__call<void (*&)()>(void (*&&&)()) [inlined] decltype(__f=0x0000648000171458)()>(fp)(std::__1::forward<>(fp0))) std::__1::__invoke<void (*&)()>(void (*&&&)()) + 42 at __functional_base:416
    frame #30: 0x000000010c4226cc polygonExample`void std::__1::__invoke_void_return_wrapper<void>::__call<void (__args=0x0000648000171458)()>(void (*&&&)()) + 28 at __functional_base:468
    frame #31: 0x000000010c4225a9 polygonExample`std::__1::__function::__func<void (*)(), std::__1::allocator<void (*)()>, void ()>::operator(this=0x0000648000171450)() + 41 at functional:1437
    frame #32: 0x000000010c41e21e polygonExample`std::__1::function<void ()>::operator(this=0x0000648000171450)() const + 126 at functional:1817
    frame #33: 0x000000010c41d7fd polygonExample`ofMainLoop::loop(this=0x0000648000171400) + 189 at ofMainLoop.cpp:126
    frame #34: 0x000000010c27b86d polygonExample`ofRunMainLoop() + 29 at ofAppRunner.cpp:194
    frame #35: 0x000000010c27b7f0 polygonExample`ofRunApp(OFSA=0x00006300001a10a0) + 96 at ofAppRunner.cpp:171
    frame #36: 0x000000010c2304c8 polygonExample`main + 168 at main.mm:18
    frame #37: 0x0000000110da168d libdyld.dylib`start + 1
    frame #38: 0x0000000110da168d libdyld.dylib`start + 1
(lldb) 

[bakercp]

Confirming this error on iOS master.

    ofBeginShape();
    for (int i = 0; i < 10; ++i)
    {
        ofVertex(ofRandomWidth(), ofRandomHeight());
    }
    ofEndShape();

In fact, this will crash my program.

[johnkingsley]

I had a SEGV in the tessellator on the raspberry pi. This pull request fixed it: https://github.com/openframeworks/apothecary/pull/69 (currently outstanding)

Maybe this is related?

[bakercp]

Aha. Will check it out.

On Thu, May 25, 2017, 12:17 PM John Kingsley notifications@github.com wrote:

I had a SEGV in the tessellator on the raspberry pi. This pull request fixed it: openframeworks/apothecary#69 https://github.com/openframeworks/apothecary/pull/69 (currently outstanding)

Maybe this is related?

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