From 9ae028f507a22bd03c861e9d14c2efc4aa2efeda Mon Sep 17 00:00:00 2001 From: Marco Martin Date: Fri, 10 Feb 2017 15:00:23 +0100 Subject: Environment variable enabling the workaround FBO readback bug On some ARM devices the font glyph generation is broken Add an environment variable to enable workaround_brokenFBOReadBack in QOpenGLContext, to fix font rendering on such devices as Mali and Adreno Change-Id: I9cc99ecb8b71a35bc369ec9dd11b877016b1179e Reviewed-by: Laszlo Agocs --- .../android/qandroidplatformopenglcontext.cpp | 31 ---------------------- 1 file changed, 31 deletions(-) (limited to 'src/plugins/platforms/android/qandroidplatformopenglcontext.cpp') diff --git a/src/plugins/platforms/android/qandroidplatformopenglcontext.cpp b/src/plugins/platforms/android/qandroidplatformopenglcontext.cpp index 4d52085a83..6f979f614c 100644 --- a/src/plugins/platforms/android/qandroidplatformopenglcontext.cpp +++ b/src/plugins/platforms/android/qandroidplatformopenglcontext.cpp @@ -65,42 +65,11 @@ void QAndroidPlatformOpenGLContext::swapBuffers(QPlatformSurface *surface) QEGLPlatformContext::swapBuffers(surface); } -bool QAndroidPlatformOpenGLContext::needsFBOReadBackWorkaround() -{ - static bool set = false; - static bool needsWorkaround = false; - - if (!set) { - QByteArray env = qgetenv("QT_ANDROID_DISABLE_GLYPH_CACHE_WORKAROUND"); - needsWorkaround = env.isEmpty() || env == "0" || env == "false"; - - if (!needsWorkaround) { - const char *rendererString = reinterpret_cast(glGetString(GL_RENDERER)); - needsWorkaround = - qstrncmp(rendererString, "Mali-4xx", 6) == 0 // Mali-400, Mali-450 - || qstrncmp(rendererString, "Adreno (TM) 2xx", 13) == 0 // Adreno 200, 203, 205 - || qstrncmp(rendererString, "Adreno 2xx", 8) == 0 // Same as above but without the '(TM)' - || qstrncmp(rendererString, "Adreno (TM) 30x", 14) == 0 // Adreno 302, 305 - || qstrncmp(rendererString, "Adreno 30x", 9) == 0 // Same as above but without the '(TM)' - || qstrcmp(rendererString, "GC800 core") == 0 - || qstrcmp(rendererString, "GC1000 core") == 0 - || qstrcmp(rendererString, "Immersion.16") == 0; - } - - set = true; - } - - return needsWorkaround; -} - bool QAndroidPlatformOpenGLContext::makeCurrent(QPlatformSurface *surface) { bool ret = QEGLPlatformContext::makeCurrent(surface); QOpenGLContextPrivate *ctx_d = QOpenGLContextPrivate::get(context()); - if (!ctx_d->workaround_brokenFBOReadBack && needsFBOReadBackWorkaround()) - ctx_d->workaround_brokenFBOReadBack = true; - return ret; } -- cgit v1.2.3