vpp: add opencl based alpha blending

it's just a bare-bone application to test all base class works.
it waiting for opencl kernels.

configure.ac

@@ -280,6 +280,15 @@ fi
 AM_CONDITIONAL(BUILD_GET_MV,
     [test "x$enable_getmv" = "xyes"])
 
+dnl ocl blender
+AC_ARG_ENABLE(oclblender,
+    [AC_HELP_STRING([--enable-oclblender],
+        [build with opencl based alpha blend support @<:@default=no@:>@])],
+    [], [enable_oclblender="no"])
+
+AM_CONDITIONAL(BUILD_OCL_BLENDER,
+    [test "x$enable_oclblender" = "xyes"])
+
 
 # dnl Doxygen
 AC_ARG_ENABLE(docs,
@@ -434,11 +443,15 @@ AS_IF([test x$enable_h264enc = xyes], [ENCODERS="$ENCODERS h264"])
 AS_IF([test x$enable_jpegenc = xyes], [ENCODERS="$ENCODERS jpeg"])
 AS_IF([test x$enable_vp8enc = xyes], [ENCODERS="$ENCODERS vp8"])
 
+VPPS=" scaler"
+AS_IF([test x$enable_oclblender = xyes], [VPPS="$VPPS oclblender"])
+
 AC_MSG_RESULT([
     libyami - libyami_version
 
     Build decoders ................... :$DECODERS
     Build encoders ....................:$ENCODERS
+    Build vpps ........................:$VPPS
     Build documentation .............. : $enable_docs
     Enable debug ......................: $enable_debug
     Installation prefix .............. : $prefix

interface/VideoCommonDefs.h

@@ -176,6 +176,7 @@ typedef struct VideoFrame {
 #define YAMI_MIME_VP9  "video/x-vnd.on2.vp9"
 #define YAMI_MIME_JPEG "image/jpeg"
 #define YAMI_VPP_SCALER "vpp/scaler"
+#define YAMI_VPP_OCL_BLENDER "vpp/ocl_blender"
 
 #ifdef __cplusplus
 }

vpp/Makefile.am

@@ -11,6 +11,14 @@ libyami_vpp_source_c = \
 	vaapivpppicture.cpp \
 	$(NULL)
 
+if BUILD_OCL_BLENDER
+libyami_vpp_source_c += ../ocl/oclcontext.cpp
+libyami_vpp_source_c += oclpostprocess_base.cpp
+endif
+
+if BUILD_OCL_BLENDER
+libyami_vpp_source_c += oclpostprocess_blender.cpp
+endif
 
 libyami_vpp_source_h = \
 	../interface/VideoCommonDefs.h \
@@ -24,6 +32,15 @@ libyami_vpp_source_h_priv = \
 	vaapivpppicture.h \
 	$(NULL)
 
+if BUILD_OCL_BLENDER
+libyami_vpp_source_h_priv += ../ocl/oclcontext.h
+libyami_vpp_source_h_priv += oclpostprocess_base.h
+endif
+
+if BUILD_OCL_BLENDER
+libyami_vpp_source_h_priv += oclpostprocess_blender.h
+endif
+
 libyami_vpp_la_LIBADD = \
 	$(top_builddir)/common/libyami_common.la \
 	$(top_builddir)/vaapi/libyami_vaapi.la \
@@ -41,6 +58,10 @@ libyami_vpp_cppflags = \
 	$(LIBVA_DRM_CFLAGS) \
 	$(NULL)
 
+if BUILD_OCL_BLENDER
+libyami_vpp_ldflags += -lOpenCL
+endif
+
 lib_LTLIBRARIES             = libyami_vpp.la
 libyami_vppincludedir       = $(includedir)/libyami_vpp
 libyami_vppinclude_HEADERS  = $(libyami_vpp_source_h)

vpp/oclpostprocess_base.cpp

@@ -0,0 +1,67 @@
+/*
+ *  oclpostprocess_base.cpp - base class for opencl based vpp
+ *
+ *  Copyright (C) 2015 Intel Corporation
+ *    Author: Xu Guangxin <[email protected]>
+ *
+ *  This library 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; either version 2.1
+ *  of the License, or (at your option) any later version.
+ *
+ *  This library 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 library; if not, write to the Free
+ *  Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+ *  Boston, MA 02110-1301 USA
+ */
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include "oclpostprocess_base.h"
+#include "common/log.h"
+#include "ocl/oclcontext.h"
+
+namespace YamiMediaCodec{
+
+OclPostProcessBase::OclPostProcessBase()
+    :m_kernel(0)
+{
+}
+
+YamiStatus OclPostProcessBase::setNativeDisplay(const NativeDisplay& display)
+{
+    if (display.type != NATIVE_DISPLAY_VA
+        || !display.handle) {
+        ERROR("vpp only support va display as NativeDisplay");
+        return YAMI_INVALID_PARAM;
+    }
+    m_display = (VADisplay)display.handle;
+    return YAMI_SUCCESS;
+}
+
+YamiStatus OclPostProcessBase::ensureContext(const char* kernalName)
+{
+    if (m_kernel)
+        return YAMI_SUCCESS;
+    m_context = OclContext::create();
+    if (!m_context || !m_context->createKernel(kernalName,m_kernel))
+        return YAMI_DRIVER_FAIL;
+    return YAMI_SUCCESS;
+}
+
+OclPostProcessBase::~OclPostProcessBase()
+{
+    if (m_kernel) {
+        checkOclStatus(clReleaseKernel(m_kernel), "ReleaseKernel");
+    }
+}
+
+}
+

vpp/oclpostprocess_base.h

@@ -0,0 +1,55 @@
+/*
+ *  oclpostprocess_base.h- base class for opencl based video post process
+ *
+ *  Copyright (C) 2015 Intel Corporation
+ *    Author: XuGuangxin<[email protected]>
+ *
+ *  This library 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; either version 2.1
+ *  of the License, or (at your option) any later version.
+ *
+ *  This library 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 library; if not, write to the Free
+ *  Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+ *  Boston, MA 02110-1301 USA
+ */
+
+#ifndef vaapipostprocess_base_h
+#define vaapipostprocess_base_h
+
+#include "VideoPostProcessInterface.h"
+#include <CL/opencl.h>
+#include <va/va.h>
+
+namespace YamiMediaCodec{
+class OclContext;
+/**
+ * \class OclPostProcessBase
+ * \brief Abstract video post process base on opencl
+ *
+ */
+class OclPostProcessBase : public IVideoPostProcess {
+public:
+    // set native display
+    virtual YamiStatus  setNativeDisplay(const NativeDisplay& display);
+
+    YamiStatus ensureContext(const char* kernalName);
+    //
+    virtual YamiStatus process(const SharedPtr<VideoFrame>& src,
+                               const SharedPtr<VideoFrame>& dest) = 0;
+    OclPostProcessBase();
+    virtual ~OclPostProcessBase();
+protected:
+    VADisplay m_display;
+    cl_kernel m_kernel;
+    SharedPtr<OclContext> m_context;
+};
+}
+#endif                          /* vaapipostprocess_base_h */
+

vpp/oclpostprocess_blender.cpp

@@ -0,0 +1,47 @@
+/*
+ *  oclpostprocess_blend.cpp - ocl based alpha blending
+ *
+ *  Copyright (C) 2015 Intel Corporation
+ *    Author: XuGuangxin<[email protected]>
+ *
+ *  This library 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; either version 2.1
+ *  of the License, or (at your option) any later version.
+ *
+ *  This library 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 library; if not, write to the Free
+ *  Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+ *  Boston, MA 02110-1301 USA
+ */
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include "oclpostprocess_blender.h"
+#include "vaapipostprocess_factory.h"
+#include "common/log.h"
+
+namespace YamiMediaCodec{
+
+
+YamiStatus
+OclPostProcessBlender::process(const SharedPtr<VideoFrame>& src,
+                                const SharedPtr<VideoFrame>& dest)
+{
+    YamiStatus status = ensureContext("blend");
+    if (status != YAMI_SUCCESS)
+        return status;
+    return YAMI_SUCCESS;
+}
+
+const bool OclPostProcessBlender::s_registered =
+    VaapiPostProcessFactory::register_<OclPostProcessBlender>(YAMI_VPP_OCL_BLENDER);
+
+}
+

vpp/oclpostprocess_blender.h

@@ -0,0 +1,45 @@
+/*
+ *  oclpostprocess_blend.h - ocl based alpha blending
+ *
+ *  Copyright (C) 2015 Intel Corporation
+ *    Author: XuGuangxin<[email protected]>
+ *
+ *  This library 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; either version 2.1
+ *  of the License, or (at your option) any later version.
+ *
+ *  This library 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 library; if not, write to the Free
+ *  Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+ *  Boston, MA 02110-1301 USA
+ */
+#ifndef oclpostprocess_blender_h
+#define oclpostprocess_blender_h
+
+
+#include "interface/VideoCommonDefs.h"
+#include "oclpostprocess_base.h"
+
+namespace YamiMediaCodec{
+
+/**
+ * \class OclPostProcessBlend
+ * \brief alpha blending base on opencl
+ */
+class OclPostProcessBlender : public OclPostProcessBase {
+public:
+    virtual YamiStatus process(const SharedPtr<VideoFrame>& src,
+                               const SharedPtr<VideoFrame>& dest);
+
+private:
+    static const bool s_registered; // VaapiPostProcessFactory registration result
+};
+
+}
+#endif //oclpostprocess_blend_h