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Android: use fbo read back workaround with specific GPUs.

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Namely, the Mali 400 and the Adreno 200. We used to enable this
workaround only for the Samsung Galaxy Tab 3, which has a Mali
400. The same problem was confirmed with the Samsung Galaxy
Note N7000 (Mali 400) and the ZTE Blade (Adreno 200).

Task-number: QTBUG-33951
Task-number: QTBUG-34984
Change-Id: Ic624962986f718285b98ab4ca48e22f9aa110753
Reviewed-by: Eskil Abrahamsen Blomfeldt <eskil.abrahamsen-blomfeldt@digia.com>
Reviewed-by: Shawn Rutledge <shawn.rutledge@digia.com>
This commit is contained in:
Yoann Lopes 2014-03-25 17:31:09 +01:00 committed by The Qt Project
parent e7270b68fe
commit b3f201b8af
4 changed files with 22 additions and 4 deletions
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4
src/plugins/platforms/android/qandroidplatformintegration.cpp
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@ -132,7 +132,7 @@ QAndroidPlatformIntegration::QAndroidPlatformIntegration(const QStringList &para
m_androidSystemLocale = new QAndroidSystemLocale;
}
bool QAndroidPlatformIntegration::needsWorkaround()
bool QAndroidPlatformIntegration::needsBasicRenderloopWorkaround()
{
static bool needsWorkaround =
QtAndroid::deviceName().compare(QStringLiteral("samsung SM-T211"), Qt::CaseInsensitive) == 0
@ -150,7 +150,7 @@ bool QAndroidPlatformIntegration::hasCapability(Capability cap) const
case OpenGL: return true;
case ForeignWindows: return true;
case ThreadedOpenGL:
if (needsWorkaround())
if (needsBasicRenderloopWorkaround())
return false;
else
return true;

2
src/plugins/platforms/android/qandroidplatformintegration.h
View File

@ -120,9 +120,9 @@ public:
QTouchDevice *touchDevice() const { return m_touchDevice; }
void setTouchDevice(QTouchDevice *touchDevice) { m_touchDevice = touchDevice; }
static bool needsWorkaround();
EGLDisplay m_eglDisplay;
private:
static bool needsBasicRenderloopWorkaround();
QTouchDevice *m_touchDevice;

18
src/plugins/platforms/android/qandroidplatformopenglcontext.cpp
View File

@ -62,6 +62,22 @@ void QAndroidPlatformOpenGLContext::swapBuffers(QPlatformSurface *surface)
static_cast<QAndroidPlatformOpenGLWindow *>(surface)->checkNativeSurface(eglConfig());
}
bool QAndroidPlatformOpenGLContext::needsFBOReadBackWorkaroud()
{
static bool set = false;
static bool needsWorkaround = false;
if (!set) {
const char *rendererString = reinterpret_cast<const char *>(glGetString(GL_RENDERER));
needsWorkaround =
qstrcmp(rendererString, "Mali-400 MP") == 0
|| qstrcmp(rendererString, "Adreno (TM) 200") == 0;
set = true;
}
return needsWorkaround;
}
bool QAndroidPlatformOpenGLContext::makeCurrent(QPlatformSurface *surface)
{
bool ret = QEGLPlatformContext::makeCurrent(surface);
@ -71,7 +87,7 @@ bool QAndroidPlatformOpenGLContext::makeCurrent(QPlatformSurface *surface)
if (rendererString != 0 && qstrncmp(rendererString, "Android Emulator", 16) == 0)
ctx_d->workaround_missingPrecisionQualifiers = true;
if (!ctx_d->workaround_brokenFBOReadBack && QAndroidPlatformIntegration::needsWorkaround())
if (!ctx_d->workaround_brokenFBOReadBack && needsFBOReadBackWorkaroud())
ctx_d->workaround_brokenFBOReadBack = true;
return ret;

2
src/plugins/platforms/android/qandroidplatformopenglcontext.h
View File

@ -56,6 +56,8 @@ public:
private:
virtual EGLSurface eglSurfaceForPlatformSurface(QPlatformSurface *surface);
static bool needsFBOReadBackWorkaroud();
};
QT_END_NAMESPACE