[Libreoffice-bugs] [Bug 124729] Impress reliably crashes on THIS PowerPoint document in Linux

[bugzilla-daemon at bugs.documentfoundation.org]

https://bugs.documentfoundation.org/show_bug.cgi?id=124729

--- Comment #33 from Timur <gtimur at gmail.com> ---
(In reply to Caolán McNamara from comment #30)
> caolanm->Timur: Is there gtk3-demo available on the crashing system? 
Seems so. Linux Mint 19.2 Cinnamon.
> what happens if you run that and try its "OpenGL Area" demo ?
Menu "OpenGL Area" just says:
"GtkGLArea is a widget that allows custom drawing using OpenGL calls."
I don't see "Demo". In LO Options-View I don't have OpenGL.


Apart from TAB "Source", "OpenGL Area" has this info:

TAB glarea-gl.fs.glsl
#version 330

out vec4 outputColor;

void main() {
  float lerpVal = gl_FragCoord.y / 500.0f;

  outputColor = mix(vec4(1.0f, 0.85f, 0.35f, 1.0f), vec4(0.2f, 0.2f, 0.2f,
1.0f), lerpVal);
}


TAB glarea-gles.fs.glsl
precision mediump float;

void main() {
  float lerpVal = gl_FragCoord.y / 500.0;

  gl_FragColor = mix(vec4(1.0, 0.85, 0.35, 1.0), vec4(0.2, 0.2, 0.2, 1.0),
lerpVal);
}

TAB glarea-gl.vs.glsl 
#version 330

layout(location = 0) in vec4 position;
uniform mat4 mvp;

void main() {
  gl_Position = mvp * position;
}



TAB glarea-gles.vs.glsl
attribute vec4 position;

uniform mat4 mvp;

void main() {
  gl_Position = mvp * position;
}


Note: Unlike Mint 18.3 where slide show works fine with LO 6.2.8 *installed*
from PPA, in Mint 19.2 with LO 6.3 installed from PPA it just quits on slide
show run.

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