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Android-eglfs: Added support for non-composited rendering.

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By using FramebufferNativeWindow Qt can render directly without going
through the SurfaceFlinger compositor.

Change-Id: I0538fca9f2e905c076ff5837dd73589ee9c632ca
Reviewed-by: Gunnar Sletta <gunnar.sletta@digia.com>
This commit is contained in:
Samuel Rødal 2012-10-25 17:10:03 +02:00 committed by The Qt Project
parent d29aabbca9
commit 01d5c6c949
2 changed files with 64 additions and 2 deletions
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64
mkspecs/unsupported/android-g++/qeglfshooks_surfaceflinger.cpp
View File

@ -56,17 +56,62 @@ QT_BEGIN_NAMESPACE
class QEglFSPandaHooks : public QEglFSHooks
{
public:
QEglFSPandaHooks();
virtual EGLNativeWindowType createNativeWindow(const QSize &size, const QSurfaceFormat &format);
virtual QSize screenSize() const;
virtual int screenDepth() const;
virtual bool filterConfig(EGLDisplay display, EGLConfig config) const;
private:
EGLNativeWindowType createNativeWindowSurfaceFlinger(const QSize &size, const QSurfaceFormat &format);
EGLNativeWindowType createNativeWindowFramebuffer(const QSize &size, const QSurfaceFormat &format);
void ensureFramebufferNativeWindowCreated();
// androidy things
sp<android::SurfaceComposerClient> mSession;
sp<android::SurfaceControl> mControl;
sp<android::Surface> mAndroidSurface;
sp<android::FramebufferNativeWindow> mFramebufferNativeWindow;
EGLint mFramebufferVisualId;
bool mUseFramebuffer;
};
EGLNativeWindowType QEglFSPandaHooks::createNativeWindow(const QSize &size, const QSurfaceFormat &)
QEglFSPandaHooks::QEglFSPandaHooks()
: mFramebufferVisualId(EGL_DONT_CARE)
{
mUseFramebuffer = qgetenv("QT_QPA_EGLFS_NO_SURFACEFLINGER").toInt();
}
void QEglFSPandaHooks::ensureFramebufferNativeWindowCreated()
{
if (mFramebufferNativeWindow.get())
return;
mFramebufferNativeWindow = new FramebufferNativeWindow();
framebuffer_device_t const *fbDev = mFramebufferNativeWindow->getDevice();
if (!fbDev)
qFatal("Failed to get valid FramebufferNativeWindow, no way to create EGL surfaces");
ANativeWindow *window = mFramebufferNativeWindow.get();
window->query(window, NATIVE_WINDOW_FORMAT, &mFramebufferVisualId);
}
EGLNativeWindowType QEglFSPandaHooks::createNativeWindow(const QSize &size, const QSurfaceFormat &format)
{
return mUseFramebuffer ? createNativeWindowFramebuffer(size, format) : createNativeWindowSurfaceFlinger(size, format);
}
EGLNativeWindowType QEglFSPandaHooks::createNativeWindowFramebuffer(const QSize &size, const QSurfaceFormat &)
{
Q_UNUSED(size);
ensureFramebufferNativeWindowCreated();
return mFramebufferNativeWindow.get();
}
EGLNativeWindowType QEglFSPandaHooks::createNativeWindowSurfaceFlinger(const QSize &size, const QSurfaceFormat &)
{
Q_UNUSED(size);
@ -85,6 +130,23 @@ EGLNativeWindowType QEglFSPandaHooks::createNativeWindow(const QSize &size, cons
EGLNativeWindowType eglWindow = mAndroidSurface.get();
return eglWindow;
}
bool QEglFSPandaHooks::filterConfig(EGLDisplay display, EGLConfig config) const
{
if (!mUseFramebuffer)
return true;
const_cast<QEglFSPandaHooks *>(this)->ensureFramebufferNativeWindowCreated();
if (mFramebufferVisualId == EGL_DONT_CARE)
return true;
EGLint nativeVisualId = 0;
eglGetConfigAttrib(display, config, EGL_NATIVE_VISUAL_ID, &nativeVisualId);
return nativeVisualId == mFramebufferVisualId;
}
QSize QEglFSPandaHooks::screenSize() const
{
static QSize size;

2
mkspecs/unsupported/android-g++/qmake.conf
View File

@ -50,7 +50,7 @@ DEFINES += ANDROID
QT_QPA_DEFAULT_PLATFORM = eglfs
EGLFS_PLATFORM_HOOKS_SOURCES = $$PWD/qeglfshooks_surfaceflinger.cpp
EGLFS_PLATFORM_HOOKS_LIBS += -lgui -lutils
EGLFS_PLATFORM_HOOKS_LIBS += -lui -lgui -lutils -lcutils
QMAKE_CC = $${ANDROID_TOOLCHAIN_PREFIX}gcc