[Development] New SceneGraph related issue
Sletta Gunnar
Gunnar.Sletta at digia.com
Thu Sep 12 16:29:55 CEST 2013
On Sep 11, 2013, at 11:12 PM, Tomasz Olszak <olszak.tomasz at gmail.com> wrote:
> Hi,
> I have strange issue running most recent Qt sources on Tizen emulator (qemu i586).
> Also I know that there are issues with supporting HW acceleration. For example I need to export QML_BAD_GUI_RENDER_LOOP=1 because multithreaded OpenGl is a little broken there.
>
> Anyway:
> When I run simple Qml App (ApplicationWindow with rectangle) I get:
>
> >>>>
> QtHelloWorld: client_gl.c:1585: glGetBufferSubDataARB: Assertion `offset + size <= buffer->size' failed.
do you have the rest of the stack trace? Though I suspect it would be coming from the glDrawElements call in renderMergedBatches.
> Aborted (core dumped)
>
>
> after setting (noopaque is significant because it prevents app from crash)
> QSG_RENDERER_DEBUG=render,build,change,upload,rootfs,dump,noalpha,noopaque,noclip
setting noopaque means for this example that you are not drawing anything, so it greatly reduces the stuff that the renderer does :)
>
> I get:
>
> Batch thresholds: nodes: 64 vertices: 1024
> Using buffer strategy: static
> dirty: Added RootNode 0x9ba3a58 dirty= 0 )
> dirty: Matrix TransformNode( 0x9ba3a90 identity dirty= 0 )
> dirty: Added Node( 0x9bc79b0 dirty= 0 flags= 1 )
> dirty: Added TransformNode( 0x9bc73e0 identity dirty= 0 )
> Updater::updateStates()
> - nodes have been added
> - transforms have changed
>
>
> RootNode 0x9ba3a58 dirty= 0 )
> TransformNode( 0x9ba3a90 identity dirty= 0 )
> Node( 0x9bc79b0 dirty= 0 flags= 1 )
> TransformNode( 0x9bc73e0 identity dirty= 0 )
> Node( 0x9bc72d8 dirty= 0 flags= 1 )
> TransformNode( 0x9bc7498 identity dirty= 0 )
> Node( 0x9bc76c0 dirty= 0 flags= 1 )
> TransformNode( 0x9bc76f0 identity dirty= 0 )
> Node( 0x9bc7808 dirty= 0 flags= 1 )
> GeometryNode( 0x9bc7838 strip #V: 4 #I: 4 x1= 0 y1= 0 x2= 100 y2= 100 materialtype= 0xb77093e4 ) dirty= 0
> TransformNode( 0x9bc7550 identity dirty= 0 )
> Node( 0x9bc77a8 dirty= 0 flags= 1 )
> TransformNode( 0x9bc7608 translate 0 600 0 dirty= 0 )
> Node( 0x9bc77d8 dirty= 0 flags= 1 )
> Renderer::render() QSGRenderer(0x9bc6528) "rebuild: full"
> Opaque render lists (complete) :
> - element: 0x9bc79e0 batch: 0x0 node: GeometryNode( 0x9bc7838 strip #V: 4 #I: 4 x1= 0 y1= 0 x2= 100 y2= 100 materialtype= 0xb77093e4 ) dirty= 0 order: 1
> Alpha render list: (complete) :
> Opaque Batches:
> - Batch 0 0x9bc7ff8 upload root: 0x0
> - element: 0x9bc79e0 node: GeometryNode( 0x9bc7838 strip #V: 4 #I: 4 x1= 0 y1= 0 x2= 100 y2= 100 materialtype= 0xb77093e4 ) dirty= 0 1
> Alpha Batches:
> Uploading Opaque Batches:
> - batch 0x9bc7ff8 first: 0x9bc79e0 root: 0x0 merged: 1 positionAttribute 0 vbo: 0 : 76
> - uploading element: 0x9bc79e0 GeometryNode( 0x9bc7838 strip #V: 4 #I: 4 x1= 0 y1= 0 x2= 100 y2= 100 materialtype= 0xb77093e4 ) dirty= 0 0x9bc7e78 48 64
> -- Vertex Data, count: 4 - 12 bytes/vertex
> --- 0: 0:(2,float * 100 0 ) 1:(4,ubyte 255 0 0 255 ) Z:(0)
> --- 1: 0:(2,float * 0 0 ) 1:(4,ubyte 255 0 0 255 ) Z:(0)
> --- 2: 0:(2,float * 100 100 ) 1:(4,ubyte 255 0 0 255 ) Z:(0)
> --- 3: 0:(2,float * 0 100 ) 1:(4,ubyte 255 0 0 255 ) Z:(0)
> -- Index Data, count: 6
> --- 0 0 1 2 3 3
> -- DrawSet: indexCount: 6 vertices: 0 z: 48 indices: 64
> --- vertex/index buffers unmapped, batch upload completed...
> Uploading Alpha Batches:
> Rendering:
> -> Opaque: 1 nodes in 1 batches...
> -> Alpha: 0 nodes in 0 batches...
> - Breakdown of render time: preprocess=0, updates=0, binding=0, render=10, total=11
> - Breakdown of frame time; sync: 0 ms render: 11 ms swap: 33 ms total: 46 ms time since last frame: 1 ms
> dirty: Matrix TransformNode( 0x9bc7498 identity dirty= 0 )
> dirty: Matrix TransformNode( 0x9bc7608 translate 0 1280 0 dirty= 0 )
> dirty: Matrix TransformNode( 0x9bc73e0 identity dirty= 0 )
> dirty: Matrix TransformNode( 0x9ba3a90 identity dirty= 0 )
> Updater::updateStates()
> - transforms have changed
>
>
> RootNode 0x9ba3a58 dirty= 0 )
> TransformNode( 0x9ba3a90 identity dirty= 0 )
> Node( 0x9bc79b0 dirty= 0 flags= 1 )
> TransformNode( 0x9bc73e0 identity dirty= 0 )
> Node( 0x9bc72d8 dirty= 0 flags= 1 )
> TransformNode( 0x9bc7498 identity dirty= 0 )
> Node( 0x9bc76c0 dirty= 0 flags= 1 )
> TransformNode( 0x9bc76f0 identity dirty= 0 )
> Node( 0x9bc7808 dirty= 0 flags= 1 )
> GeometryNode( 0x9bc7838 strip #V: 4 #I: 4 x1= 0 y1= 0 x2= 100 y2= 100 materialtype= 0xb77093e4 ) dirty= 0
> TransformNode( 0x9bc7550 identity dirty= 0 )
> Node( 0x9bc77a8 dirty= 0 flags= 1 )
> TransformNode( 0x9bc7608 translate 0 1280 0 dirty= 0 )
> Node( 0x9bc77d8 dirty= 0 flags= 1 )
> Renderer::render() QSGRenderer(0x9bc6528) "rebuild: none"
> Uploading Opaque Batches:
> - batch 0x9bc7ff8 first: 0x9bc79e0 root: 0x0 merged: 1 positionAttribute 0 vbo: 1 : 76
> - uploading element: 0x9bc79e0 GeometryNode( 0x9bc7838 strip #V: 4 #I: 4 x1= 0 y1= 0 x2= 100 y2= 100 materialtype= 0xb77093e4 ) dirty= 0 0x9bc7e78 48 64
> -- Vertex Data, count: 4 - 12 bytes/vertex
> --- 0: 0:(2,float * 100 0 ) 1:(4,ubyte 255 0 0 255 ) Z:(0)
> --- 1: 0:(2,float * 0 0 ) 1:(4,ubyte 255 0 0 255 ) Z:(0)
> --- 2: 0:(2,float * 100 100 ) 1:(4,ubyte 255 0 0 255 ) Z:(0)
> --- 3: 0:(2,float * 0 100 ) 1:(4,ubyte 255 0 0 255 ) Z:(0)
> -- Index Data, count: 6
> --- 0 0 1 2 3 3
> -- DrawSet: indexCount: 6 vertices: 0 z: 48 indices: 64
> --- vertex/index buffers unmapped, batch upload completed...
> Uploading Alpha Batches:
> Rendering:
> -> Opaque: 1 nodes in 1 batches...
> -> Alpha: 0 nodes in 0 batches...
> - Breakdown of render time: preprocess=0, updates=0, binding=0, render=9, total=9
> - Breakdown of frame time; sync: 0 ms render: 9 ms swap: 38 ms total: 48 ms time since last frame: 48 ms
>
>
> Can someone confirm that it 100% emulator bug?
>
> --
> regards / pozdrawiam, Tomasz Olszak
> Qt for Tizen | http://qt-project.org/wiki/Tizen
> Qt Certified Developer | http://qt-project.org
> http://linkedin.com/in/tolszak
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