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 # qmake configuration for Broadcom's Raspberry PI
# http://wiki.qt-project.org/Devices/RaspberryPi

include(../common/linux_device_pre.conf)

QT_QPA_DEFAULT_PLATFORM = wayland

QMAKE_LFLAGS           += -Wl,-rpath-link,$$[QT_SYSROOT]/opt/vc/lib

QMAKE_LIBDIR_OPENGL_ES2 = $$[QT_SYSROOT]/opt/vc/lib
QMAKE_LIBDIR_EGL        = $$QMAKE_LIBDIR_OPENGL_ES2

QMAKE_INCDIR_EGL        = $$[QT_SYSROOT]/opt/vc/include \
                          $$[QT_SYSROOT]/opt/vc/include/interface/vcos/pthreads \
                          $$[QT_SYSROOT]/opt/vc/include/interface/vmcs_host/linux
QMAKE_INCDIR_OPENGL_ES2 = $${QMAKE_INCDIR_EGL}

QMAKE_LIBS_EGL          = -lEGL -lGLESv2

contains(DISTRO, squeeze) {
    #Debian Squeeze: Legacy everything
    QMAKE_LIBS_OPENGL_ES2   = -lGLESv2 -lEGL
    QT_QPA_DEFAULT_PLATFORM = eglfs
} else:contains(DISTRO, arch) {
    #On principle: no wizardry required
} else {
    #This is not strictly necessary
    DISTRO_OPTS += deb-multi-arch
    DISTRO_OPTS += hard-float
}

QMAKE_CFLAGS           += \
                          -marm \
                          -mfpu=vfp \
                          -mtune=arm1176jzf-s \
                          -march=armv6zk \
                          -mabi=aapcs-linux

QMAKE_CXXFLAGS          = $$QMAKE_CFLAGS

EGLFS_PLATFORM_HOOKS_SOURCES = $$PWD/qeglfshooks_pi.cpp
EGLFS_PLATFORM_HOOKS_LIBS = -lbcm_host

include(../common/linux_arm_device_post.conf)

load(qt_config)

 class QEglFSPiHooks : public QEglFSHooks
{
public:
    virtual void platformInit();
    virtual void platformDestroy();
    virtual EGLNativeDisplayType platformDisplay() const;
    virtual QSize screenSize() const;
    virtual EGLNativeWindowType createNativeWindow(const QSize &size, const QSurfaceFormat &format);
    virtual void destroyNativeWindow(EGLNativeWindowType window);
    virtual bool hasCapability(QPlatformIntegration::Capability cap) const;

    QEglFSCursor *createCursor(QEglFSScreen *screen) const {
        return new QEglFSPiCursor(screen);
    }
};

void QEglFSPiHooks::platformInit()
{
    bcm_host_init();
}

EGLNativeDisplayType QEglFSPiHooks::platformDisplay() const
{
    dispman_display = vc_dispmanx_display_open(0/* LCD */);
    return EGL_DEFAULT_DISPLAY;
}

void QEglFSPiHooks::platformDestroy()
{
    vc_dispmanx_display_close(dispman_display);
}

QSize QEglFSPiHooks::screenSize() const
{
    uint32_t width, height;
    graphics_get_display_size(0 /* LCD */, &width, &height);
    return QSize(width, height);
}

EGLNativeWindowType QEglFSPiHooks::createNativeWindow(const QSize &size, const QSurfaceFormat &format)
{
    return createDispmanxLayer(QPoint(0, 0), size, 1, format.hasAlpha() ? DISPMANX_FLAGS_ALPHA_FROM_SOURCE : DISPMANX_FLAGS_ALPHA_FIXED_ALL_PIXELS);
}

void QEglFSPiHooks::destroyNativeWindow(EGLNativeWindowType window)
{
    destroyDispmanxLayer(window);
}

bool QEglFSPiHooks::hasCapability(QPlatformIntegration::Capability cap) const
{
    switch (cap) {
        case QPlatformIntegration::ThreadedPixmaps:
        case QPlatformIntegration::OpenGL:
        case QPlatformIntegration::ThreadedOpenGL:
        case QPlatformIntegration::BufferQueueingOpenGL:
            return true;
        default:
            return false;
    }
}

QEglFSPiHooks eglFSPiHooks;
QEglFSHooks *platformHooks = &eglFSPiHooks;

export HOST_DIR=$BUILDROOT_DIR/host
export STAGING_DIR=$BUILDROOT_DIR/staging
export TARGET_DIR=$BUILDROOT_DIR/target

./configure -prefix /usr -hostprefix $HOST_DIR/usr -release -device pi -device-option CROSS_COMPILE=$HOST_DIR/usr/bin/arm-raspberrypi-linux-gnueabi- -sysroot $STAGING_DIR -no-neon

• make
• make install
• qmake
• copy files to device image
• libraries
• binaries

• Andy Nichols
• andy.nichols@digia.com
• freenode IRC: nezticle
• twitter: @nezticle