** Changed in: ubuntu-ui-toolkit (Ubuntu)
Status: New => Triaged
** Changed in: ubuntu-ui-toolkit (Ubuntu)
Importance: High => Critical
** Changed in: ubuntu-ui-toolkit (Ubuntu)
Assignee: (unassigned) => Loïc Molinari (loic.molinari)
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https://bugs.launchpad.net/bugs/1458694
Title:
[vivid-overlay] unity8 fails to start on the emulator
Status in mir package in Ubuntu:
New
Status in ubuntu-ui-toolkit package in Ubuntu:
Triaged
Bug description:
phablet@ubuntu-phablet:~$ system-image-cli -i
current build number: 140
device name: generic_x86
channel: ubuntu-touch/rc-proposed/ubuntu
last update: 2015-05-25 12:02:10
version version: 140
version ubuntu: 20150525
version device: 20150210
version custom: 20150525
When starting unity8 (this started at image 136, probably when mir
0.13 landed):
phablet@ubuntu-phablet:~$ cat ./.cache/upstart/unity8.log
()
[1432595001.896139] mirplatform: Found graphics driver: dummy
[1432595001.898447] mirplatform: Found graphics driver: android
qtmir.mir: MirServer created
[1432595003.675225] Server: Starting
[1432595003.679331] Loader: Loading modules from:
/usr/lib/i386-linux-gnu/mir/server-platform
[1432595003.679501] Loader: Loading module:
/usr/lib/i386-linux-gnu/mir/server-platform/graphics-dummy.so
[1432595003.680673] Loader: Loading module:
/usr/lib/i386-linux-gnu/mir/server-platform/input-stub.so
[1432595003.681107] <WARNING> Loader: Failed to load module:
/usr/lib/i386-linux-gnu/mir/server-platform/input-stub.so (error
was:/usr/lib/i386-linux-gnu/mir/server-platform/input-stub.so: undefined
symbol: _ZN3mir6events10make_eventExx17MirKeyboardActionjij)
[1432595003.684868] Loader: Loading module:
/usr/lib/i386-linux-gnu/mir/server-platform/graphics-android.so.2
[1432595003.685014] mirplatform: Found graphics driver: dummy
[1432595003.685211] mirplatform: Found graphics driver: android
[1432595003.685416] Platform Loader: Selected driver: android (version 0.13.0)
qtmir.mir: PromptSessionListener::PromptSessionListener - this=
PromptSessionListener(0x9679764)
qtmir.mir: SessionListener::SessionListener - this= SessionListener(0x9676d24)
qtmir.mir: MirShell::MirShell
[1432595003.883766] DisplayServer: Mir version 0.13.0
QtCompositor::setAllWindowsExposed true
qtmir.clipboard: D-Bus registration successful.
Mode argument was not provided or was set to an illegal value. Using default
value of --mode= "full-greeter"
Cannot create window: no screens available
With version 135 it starts fine, but not fully functional, giving this
error:
QOpenGLShader::compile(Fragment): 0:2(12): warning: extension
`GL_OES_standard_derivatives' unsupported in fragment shader
0:2(1): error: #extension directive is not allowed in the middle of a shader
*** Problematic Fragment shader source code ***
#extension GL_OES_standard_derivatives : enable // Enable dFdy() on OpenGL
ES 2.
#define lowp
#define mediump
#define highp
// Copyright © 2015 Canonical Ltd.
//
// This program is free software; you can redistribute it and/or modify
// it under the terms of the GNU Lesser General Public License as published by
// the Free Software Foundation; version 3.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public License
// along with this program. If not, see <http://www.gnu.org/licenses/>.
//
// Author: Loïc Molinari <loic.molin...@canonical.com>
// Static flow control (branching on a uniform value) is fast on most GPUs
(including ultra-low
// power ones) because it allows to use the same shader execution path for an
entire draw call. We
// rely on that technique here (also known as "uber-shader" solution) to
avoid the complexity of
// dealing with a multiple shaders solution.
// FIXME(loicm) Validate GPU behavior with regards to static flow control.
uniform sampler2D shapeTexture;
uniform sampler2D sourceTexture;
uniform lowp vec2 dfdtFactors;
uniform lowp vec2 opacityFactors;
uniform lowp float sourceOpacity;
uniform lowp float distanceAA;
uniform bool textured;
uniform mediump int aspect;
varying mediump vec2 shapeCoord;
varying mediump vec4 sourceCoord;
varying lowp vec4 backgroundColor;
const mediump int FLAT = 0x08; // 1 << 3
const mediump int INSET = 0x10; // 1 << 4
void main(void)
{
lowp vec4 shapeData = texture2D(shapeTexture, shapeCoord);
lowp vec4 color = backgroundColor;
// FIXME(loicm) Would be better to use a bitfield but bitwise ops have
only been integrated in
// GLSL 1.3 (OpenGL 3) and GLSL ES 3 (OpenGL ES 3).
if (textured) {
// Blend the source over the current color.
// FIXME(loicm) sign() is far from optimal. Call texture2D() at
beginning of scope.
lowp vec2 axisMask = -sign((sourceCoord.zw * sourceCoord.zw) -
vec2(1.0));
lowp float mask = clamp(axisMask.x + axisMask.y, 0.0, 1.0);
lowp vec4 source = texture2D(sourceTexture, sourceCoord.st) *
vec4(sourceOpacity * mask);
color = vec4(1.0 - source.a) * color + source;
}
// Get screen-space derivative of texture coordinate t representing the
normalized distance
// between 2 pixels. dFd*() unfortunately have to be called outside of
branches in order to work
// correctly with VMware's "Gallium 0.4 on SVGA3D".
lowp vec2 derivatives = vec2(dFdx(shapeCoord.t), dFdy(shapeCoord.t));
lowp float dfdt = dfdtFactors.x != 0.0 ? derivatives.x : derivatives.y;
if (aspect == FLAT) {
// Mask the current color with an anti-aliased and resolution
independent shape mask built
// from distance fields.
lowp float distanceMin = abs(dfdt) * -distanceAA + 0.5;
lowp float distanceMax = abs(dfdt) * distanceAA + 0.5;
color *= smoothstep(distanceMin, distanceMax, shapeData.b);
} else if (aspect == INSET) {
// The vertex layout of the shape is made so that the derivative is
negative from top to
// middle and positive from middle to bottom.
lowp float shapeSide = dfdt * dfdtFactors.y <= 0.0 ? 0.0 : 1.0;
// Blend the shape inner shadow over the current color. The shadow
color is black, its
// translucency is stored in the texture.
lowp float shadow = shapeData[int(shapeSide)];
color = vec4(1.0 - shadow) * color + vec4(0.0, 0.0, 0.0, shadow);
// Get the anti-aliased and resolution independent shape mask using
distance fields.
lowp float distanceMin = abs(dfdt) * -distanceAA + 0.5;
lowp float distanceMax = abs(dfdt) * distanceAA + 0.5;
lowp vec2 mask = smoothstep(distanceMin, distanceMax, shapeData.ba);
// Get the bevel color. The bevel is made of the top mask masked with
the bottom mask. A
// gradient from the bottom (1) to the middle (0) of the shape is
used to factor out values
// resulting from the mask anti-aliasing. The bevel color is white
with 60% opacity.
lowp float bevel = (mask.x * -mask.y) + mask.x; // -ab + a = a(1 - b)
lowp float gradient = clamp((shapeSide * -shapeCoord.t) + shapeSide,
0.0, 1.0);
bevel *= gradient * 0.6;
// Mask the current color then blend the bevel over the resulting
color. We simply use
// additive blending since the bevel has already been masked.
color = (color * vec4(mask[int(shapeSide)])) + vec4(bevel);
}
gl_FragColor = color * opacityFactors.xxxy;
}
***
shader compilation failed:
""
Adb is broken because of bug 1458043, so use the following workaround
to get it to work again:
$ sudo ubuntu-emulator create --channel=ubuntu-touch/rc-proposed/ubuntu
test_x86 --use-raw-disk
$ mkdir -p /tmp/mount1 /tmp/mount2
$ sudo mount ~/.local/share/ubuntu-emulator/test_x86/sdcard.img /tmp/mount1
$ sudo mount /tmp/mount1/system.img /tmp/mount2
$ sudo vi /tmp/mount2/var/lib/lxc/android/pre-start.d/20-no-default-prop-adb
#! /bin/sh
# Avoid changing the the property when running on the emulator
if ! grep -q "qemu=1" /proc/cmdline; then
sed -i '/^persist.sys.usb.config=.*/d' $LXC_ROOTFS_PATH/default.prop ||
true
fi
$ sudo umount /tmp/mount2
$ sudo umount /tmp/mount1
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