libvision/kernel/vpu/ExynosVpuKernelHalfScaleGaussian.cpp - LeafOS-Devices/android_hardware_samsung_slsi-linaro_exynos - Gitiles

 /*
  * Copyright (C) 2015, Samsung Electronics Co. LTD
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * You may obtain a copy of the License at
  *
  *      http://www.apache.org/licenses/LICENSE-2.0
  *
  * Unless required by applicable law or agreed to in writing, software
  * distributed under the License is distributed on an "AS IS" BASIS,
  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */

 #define LOG_TAG "ExynosVpuKernelHalfScaleGaussian"
 #include <cutils/log.h>

 #include "ExynosVpuKernelHalfScaleGaussian.h"

 #include "vpu_kernel_util.h"

 #include "td-binary-halfscalegaussian.h"

 namespace android {

 using namespace std;

 static vx_uint16 td_binary[] =
     TASK_test_binary_halfscalegaussian_from_VDE_DS;

 vx_status
 ExynosVpuKernelHalfScaleGaussian::inputValidator(vx_node node, vx_uint32 index)
 {
     vx_status status = VX_ERROR_INVALID_PARAMETERS;

     if (index == 0) {
         vx_image input = 0;
         vx_parameter param = vxGetParameterByIndex(node, index);

         vxQueryParameter(param, VX_PARAMETER_ATTRIBUTE_REF, &input, sizeof(input));
         if (input) {
             vx_df_image format = 0;
             vxQueryImage(input, VX_IMAGE_ATTRIBUTE_FORMAT, &format, sizeof(format));
             if (format == VX_DF_IMAGE_U8) {
                 status = VX_SUCCESS;
             }
             vxReleaseImage(&input);
         }
         vxReleaseParameter(&param);
     } else if (index == 2) {
         vx_parameter param = vxGetParameterByIndex(node, index);
         if (param) {
             vx_scalar scalar = 0;
             vxQueryParameter(param, VX_PARAMETER_ATTRIBUTE_REF, &scalar, sizeof(scalar));
             if (scalar) {
                 vx_enum stype = 0;
                 vxQueryScalar(scalar, VX_SCALAR_ATTRIBUTE_TYPE, &stype, sizeof(stype));
                 if (stype == VX_TYPE_INT32) {
                     vx_int32 ksize = 0;
                     vxReadScalarValue(scalar, &ksize);
                     if ((ksize == 3) || (ksize == 5)) {
                         status = VX_SUCCESS;
                     } else {
                         status = VX_ERROR_INVALID_VALUE;
                     }
                 } else {
                     status = VX_ERROR_INVALID_TYPE;
                 }
                 vxReleaseScalar(&scalar);
             }
             vxReleaseParameter(&param);
         }
     }

     return status;
 }

 vx_status
 ExynosVpuKernelHalfScaleGaussian::outputValidator(vx_node node, vx_uint32 index, vx_meta_format meta)
 {
     vx_status status = VX_ERROR_INVALID_PARAMETERS;

     if (index == 1) {
         vx_parameter src_param = vxGetParameterByIndex(node, 0);
         vx_parameter dst_param = vxGetParameterByIndex(node, index);
         if (src_param && dst_param) {
             vx_image src = 0;
             vx_image dst = 0;
             vxQueryParameter(src_param, VX_PARAMETER_ATTRIBUTE_REF, &src, sizeof(src));
             vxQueryParameter(dst_param, VX_PARAMETER_ATTRIBUTE_REF, &dst, sizeof(dst));
             if ((src) && (dst)) {
                 vx_uint32 w1 = 0, h1 = 0;
                 vx_df_image f1 = VX_DF_IMAGE_VIRT;

                 vxQueryImage(src, VX_IMAGE_ATTRIBUTE_WIDTH, &w1, sizeof(w1));
                 vxQueryImage(src, VX_IMAGE_ATTRIBUTE_HEIGHT, &h1, sizeof(h1));
                 vxQueryImage(src, VX_IMAGE_ATTRIBUTE_FORMAT, &f1, sizeof(f1));

                 /* fill in the meta data with the attributes so that the checker will pass */
                 vx_uint32 width = (w1 + 1) / 2;
                 vx_uint32 height = (h1 + 1) / 2;
                 vxSetMetaFormatAttribute(meta, VX_IMAGE_ATTRIBUTE_FORMAT, &f1, sizeof(f1));
                 vxSetMetaFormatAttribute(meta, VX_IMAGE_ATTRIBUTE_WIDTH, &width, sizeof(width));
                 vxSetMetaFormatAttribute(meta, VX_IMAGE_ATTRIBUTE_HEIGHT, &height, sizeof(height));

                 status = VX_SUCCESS;
             }
             if (src) vxReleaseImage(&src);
             if (dst) vxReleaseImage(&dst);
             vxReleaseParameter(&src_param);
             vxReleaseParameter(&dst_param);
         }
     }

     return status;
 }

 ExynosVpuKernelHalfScaleGaussian::ExynosVpuKernelHalfScaleGaussian(vx_char *name, vx_uint32 param_num)
                                        : ExynosVpuKernel(name, param_num)
 {
     strcpy(m_task_name, "halfscalegaussian");
 }

 ExynosVpuKernelHalfScaleGaussian::~ExynosVpuKernelHalfScaleGaussian(void)
 {

 }

 vx_status
 ExynosVpuKernelHalfScaleGaussian::setupBaseVxInfo(const vx_reference parameters[])
 {
     vx_status status = VX_FAILURE;

     vx_image input = (vx_image)parameters[0];

     status = vxGetValidAncestorRegionImage(input, &m_valid_rect);
     if (status != VX_SUCCESS) {
         VXLOGE("getting valid region fails, err:%d", status);
     }

     return status;
 }

 vx_status
 ExynosVpuKernelHalfScaleGaussian::initTask(vx_node node, const vx_reference *parameters)
 {
     vx_status status;

 #if 1
     status = initTaskFromBinary();
     if (status != VX_SUCCESS) {
         VXLOGE("init task from binary fails, %p, %p", node, parameters);
         goto EXIT;
     }
 #else
     status = initTaskFromApi();
     if (status != VX_SUCCESS) {
         VXLOGE("init task from api fails, %p, %p", node, parameters);
         goto EXIT;
     }
 #endif

 EXIT:
     return status;
 }

 vx_status
 ExynosVpuKernelHalfScaleGaussian::initTaskFromBinary(void)
 {
     vx_status status = VX_SUCCESS;
     ExynosVpuTaskIf *task_if_0;

     task_if_0 = initTask0FromBinary();
     if (task_if_0 == NULL) {
         VXLOGE("task0 isn't created");
         status = VX_FAILURE;
         goto EXIT;
     }

 EXIT:
     return status;
 }

 ExynosVpuTaskIf*
 ExynosVpuKernelHalfScaleGaussian::initTask0FromBinary(void)
 {
     vx_status status = VX_SUCCESS;
     int ret = NO_ERROR;

     ExynosVpuTaskIfWrapper *task_wr = new ExynosVpuTaskIfWrapper(this, 0);
     status = setTaskIfWrapper(0, task_wr);
     if (status != VX_SUCCESS) {
         VXLOGE("adding taskif wrapper fails");
         return NULL;
     }

     ExynosVpuTaskIf *task_if = task_wr->getTaskIf();
     ret = task_if->importTaskStr((struct vpul_task*)td_binary);
     if (ret != NO_ERROR) {
         VXLOGE("creating task descriptor fails, ret:%d", ret);
         status = VX_FAILURE;
         goto EXIT;
     }

     /* connect pu to io */
     task_if->setIoPu(VS4L_DIRECTION_IN, 0, (uint32_t)0);
     task_if->setIoPu(VS4L_DIRECTION_OT, 0, (uint32_t)3);

 EXIT:
     if (status == VX_SUCCESS)
         return task_if;
     else
         return NULL;
 }

 vx_status
 ExynosVpuKernelHalfScaleGaussian::initTaskFromApi(void)
 {
     vx_status status = VX_SUCCESS;
     ExynosVpuTaskIf *task_if_0;

     task_if_0 = initTask0FromApi();
     if (task_if_0 == NULL) {
         VXLOGE("task0 isn't created");
         status = VX_FAILURE;
         goto EXIT;
     }

     status = createStrFromObjectOfTask();
     if (status != VX_SUCCESS) {
         VXLOGE("creating task str fails");
         goto EXIT;
     }

 EXIT:
     return status;
 }

 ExynosVpuTaskIf*
 ExynosVpuKernelHalfScaleGaussian::initTask0FromApi(void)
 {
     vx_status status = VX_SUCCESS;

     ExynosVpuPuFactory pu_factory;

     ExynosVpuTaskIfWrapper *task_wr = new ExynosVpuTaskIfWrapper(this, 0);
     status = setTaskIfWrapper(0, task_wr);
     if (status != VX_SUCCESS) {
         VXLOGE("adding taskif wrapper fails");
         return NULL;
     }

     ExynosVpuTaskIf *task_if = task_wr->getTaskIf();
     ExynosVpuTask *task = new ExynosVpuTask(task_if);
     struct vpul_task *task_param = task->getTaskInfo();
     task_param->priority = m_priority;

     ExynosVpuVertex *start_vertex = new ExynosVpuVertex(task, VPUL_VERTEXT_START);
     ExynosVpuProcess *scale_process = new ExynosVpuProcess(task);
     ExynosVpuVertex *end_vertex = new ExynosVpuVertex(task, VPUL_VERTEXT_END);

     ExynosVpuVertex::connect(start_vertex, scale_process);
     ExynosVpuVertex::connect(scale_process, end_vertex);

     ExynosVpuIoSizeInout *iosize = new ExynosVpuIoSizeInout(scale_process);

     ExynosVpuIoSizeOpScale *sizeop_scale = new ExynosVpuIoSizeOpScale(scale_process);
     ExynosVpuIoSizeScale *iosize_down = new ExynosVpuIoSizeScale(scale_process, iosize, sizeop_scale);

     struct vpul_scales *scale_info;
     scale_info = sizeop_scale->getScaleInfo();
     scale_info->horizontal.denominator = 2;
     scale_info->horizontal.numerator = 1;
     scale_info->vertical.denominator = 2;
     scale_info->vertical.numerator = 1;

     /* define subchain */
     ExynosVpuSubchainHw *scale_subchain = new ExynosVpuSubchainHw(scale_process);

     /* define pu */
     ExynosVpuPu *dma_in = pu_factory.createPu(scale_subchain, VPU_PU_DMAIN0);
     dma_in->setSize(iosize, iosize);
     ExynosVpuPu *slf7x7 = pu_factory.createPu(scale_subchain, VPU_PU_SLF50);
     slf7x7->setSize(iosize, iosize);
     ExynosVpuPu *ds = pu_factory.createPu(scale_subchain, VPU_PU_DNSCALER0);
     ds->setSize(iosize, iosize_down);
     ExynosVpuPu *dma_out = pu_factory.createPu(scale_subchain, VPU_PU_DMAOT0);
     dma_out->setSize(iosize, iosize);

     ExynosVpuPu::connect(dma_in, 0, slf7x7, 0);
     ExynosVpuPu::connect(slf7x7, 0, ds, 0);
     ExynosVpuPu::connect(ds, 0, dma_out, 0);

     struct vpul_pu_dma *dma_in_param = (struct vpul_pu_dma*)dma_in->getParameter();
     struct vpul_pu_slf *slf_param = (struct vpul_pu_slf*)slf7x7->getParameter();
     struct vpul_pu_downscaler *ds_param = (struct vpul_pu_downscaler*)ds->getParameter();
     struct vpul_pu_dma *dma_out_param = (struct vpul_pu_dma*)dma_out->getParameter();

     slf_param->border_mode_up = 1;
     slf_param->border_mode_down = 1;
     slf_param->border_mode_left = 1;
     slf_param->border_mode_right = 1;
     slf_param->coefficient_fraction = 2;
     slf_param->maxp_sizes_filt_hor = 7;
     slf_param->maxp_sizes_filt_ver = 7;

     ds_param->interpolation_method = 2;

     /* connect pu to io */
     ExynosVpuIoExternalMem *io_external_mem;
     ExynosVpuMemmapExternal *memmap;
     ExynosVpuIoFixedMapRoi *fixed_roi;
     ExynosVpuIoTypesDesc *iotyps;

     io_external_mem = new ExynosVpuIoExternalMem(task);
     memmap = new ExynosVpuMemmapExternal(task, io_external_mem);
     fixed_roi = new ExynosVpuIoFixedMapRoi(scale_process, memmap);
     iotyps = new ExynosVpuIoTypesDesc(scale_process, fixed_roi);
     dma_in->setIoTypesDesc(iotyps);

     io_external_mem = new ExynosVpuIoExternalMem(task);
     memmap = new ExynosVpuMemmapExternal(task, io_external_mem);
     fixed_roi = new ExynosVpuIoFixedMapRoi(scale_process, memmap);
     iotyps = new ExynosVpuIoTypesDesc(scale_process, fixed_roi);
     dma_out->setIoTypesDesc(iotyps);

     status_t ret = NO_ERROR;
     ret |= task_if->setIoPu(VS4L_DIRECTION_IN, 0, dma_in);
     ret |= task_if->setIoPu(VS4L_DIRECTION_OT, 0, dma_out);
     if (ret != NO_ERROR) {
         VXLOGE("connectting pu to io fails");
         status = VX_FAILURE;
         goto EXIT;
     }

 EXIT:
     if (status == VX_SUCCESS)
         return task_if;
     else
         return NULL;
 }

 vx_status
 ExynosVpuKernelHalfScaleGaussian::updateTaskParamFromVX(vx_node node, const vx_reference *parameters)
 {
     vx_status status = VX_SUCCESS;

      if (!node)
         VXLOGE("invalid node, %p, %p", node, parameters);

     int32_t slf_coff_3x3[] = {1, 2, 1, 1, 2, 1};
     int32_t slf_coff_5x5[] = {1, 4, 6, 4, 1, 1, 4, 6, 4, 1};

     /* update vpu param from vx param */
     vx_scalar kernel_size = (vx_scalar)parameters[2];

     vx_border_mode_t border;
     status = vxQueryNode(node, VX_NODE_ATTRIBUTE_BORDER_MODE, &border, sizeof(border));
     if (status != VX_SUCCESS) {
         VXLOGE("querying node, err:%d", status);
         goto EXIT;
     }

     vx_int32 ksize;
     status = vxReadScalarValue(kernel_size, &ksize);
     if (status != VX_SUCCESS) {
         VXLOGE("reading scalar value fails");
         goto EXIT;
     }

 #if 1
     /* JUN_TBD, enable after test */
     ExynosVpuPu *slf;
     slf = getTask(0)->getPu(VPU_PU_SLF50, 1, 0);
     if (slf == NULL) {
         VXLOGE("getting pu fails");
         status = VX_FAILURE;
         goto EXIT;
     }

     struct vpul_pu_slf *slf_param;
     slf_param = (struct vpul_pu_slf*)slf->getParameter();
     switch (ksize) {
     case 3:
         slf_param->filter_size_mode = 1;
         ((ExynosVpuPuSlf*)slf)->setStaticCoffValue(slf_coff_3x3, 3, sizeof(slf_coff_3x3)/sizeof(slf_coff_3x3[0]));
         break;
     case 5:
         slf_param->filter_size_mode = 2;
         ((ExynosVpuPuSlf*)slf)->setStaticCoffValue(slf_coff_5x5, 5, sizeof(slf_coff_5x5)/sizeof(slf_coff_5x5[0]));
         break;
     default:
         VXLOGE("un-supported kernel size: %d", ksize);
         break;
     }

     switch (border.mode) {
     case VX_BORDER_MODE_UNDEFINED:
     case VX_BORDER_MODE_CONSTANT:
         slf_param->border_fill = 0;
         slf_param->border_fill_constant = border.constant_value;
         break;
     case VX_BORDER_MODE_REPLICATE:
         slf_param->border_fill = 2;
         break;
     default:
         break;
     }
 #endif

 EXIT:
     return status;
 }

 vx_status
 ExynosVpuKernelHalfScaleGaussian::initVxIo(const vx_reference *parameters)
 {
     vx_status status = VX_SUCCESS;

     ExynosVpuTaskIfWrapper *task_wr_0 = m_task_wr_list[0];

     /* connect vx param to io */
     vx_param_info_t param_info;
     memset(&param_info, 0x0, sizeof(param_info));

     param_info.image.plane = 0;
     status = task_wr_0->setIoVxParam(VS4L_DIRECTION_IN, 0, 0, param_info);
     if (status != VX_SUCCESS) {
         VXLOGE("assigning param fails, %p", parameters);
         goto EXIT;
     }

     param_info.image.plane = 0;
     status = task_wr_0->setIoVxParam(VS4L_DIRECTION_OT, 0, 1, param_info);
     if (status != VX_SUCCESS) {
         VXLOGE("assigning param fails, %p", parameters);
         goto EXIT;
     }

 EXIT:
     return status;
 }

 }; /* namespace android */
	/*
	* Copyright (C) 2015, Samsung Electronics Co. LTD
	*
	* Licensed under the Apache License, Version 2.0 (the "License");
	* you may not use this file except in compliance with the License.
	* You may obtain a copy of the License at
	*
	* http://www.apache.org/licenses/LICENSE-2.0
	*
	* Unless required by applicable law or agreed to in writing, software
	* distributed under the License is distributed on an "AS IS" BASIS,
	* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
	* See the License for the specific language governing permissions and
	* limitations under the License.
	*/

	#define LOG_TAG "ExynosVpuKernelHalfScaleGaussian"
	#include <cutils/log.h>

	#include "ExynosVpuKernelHalfScaleGaussian.h"

	#include "vpu_kernel_util.h"

	#include "td-binary-halfscalegaussian.h"

	namespace android {

	using namespace std;

	static vx_uint16 td_binary[] =
	TASK_test_binary_halfscalegaussian_from_VDE_DS;

	vx_status
	ExynosVpuKernelHalfScaleGaussian::inputValidator(vx_node node, vx_uint32 index)
	{
	vx_status status = VX_ERROR_INVALID_PARAMETERS;

	if (index == 0) {
	vx_image input = 0;
	vx_parameter param = vxGetParameterByIndex(node, index);

	vxQueryParameter(param, VX_PARAMETER_ATTRIBUTE_REF, &input, sizeof(input));
	if (input) {
	vx_df_image format = 0;
	vxQueryImage(input, VX_IMAGE_ATTRIBUTE_FORMAT, &format, sizeof(format));
	if (format == VX_DF_IMAGE_U8) {
	status = VX_SUCCESS;
	}
	vxReleaseImage(&input);
	}
	vxReleaseParameter(&param);
	} else if (index == 2) {
	vx_parameter param = vxGetParameterByIndex(node, index);
	if (param) {
	vx_scalar scalar = 0;
	vxQueryParameter(param, VX_PARAMETER_ATTRIBUTE_REF, &scalar, sizeof(scalar));
	if (scalar) {
	vx_enum stype = 0;
	vxQueryScalar(scalar, VX_SCALAR_ATTRIBUTE_TYPE, &stype, sizeof(stype));
	if (stype == VX_TYPE_INT32) {
	vx_int32 ksize = 0;
	vxReadScalarValue(scalar, &ksize);
	if ((ksize == 3) \|\| (ksize == 5)) {
	status = VX_SUCCESS;
	} else {
	status = VX_ERROR_INVALID_VALUE;
	}
	} else {
	status = VX_ERROR_INVALID_TYPE;
	}
	vxReleaseScalar(&scalar);
	}
	vxReleaseParameter(&param);
	}
	}

	return status;
	}

	vx_status
	ExynosVpuKernelHalfScaleGaussian::outputValidator(vx_node node, vx_uint32 index, vx_meta_format meta)
	{
	vx_status status = VX_ERROR_INVALID_PARAMETERS;

	if (index == 1) {
	vx_parameter src_param = vxGetParameterByIndex(node, 0);
	vx_parameter dst_param = vxGetParameterByIndex(node, index);
	if (src_param && dst_param) {
	vx_image src = 0;
	vx_image dst = 0;
	vxQueryParameter(src_param, VX_PARAMETER_ATTRIBUTE_REF, &src, sizeof(src));
	vxQueryParameter(dst_param, VX_PARAMETER_ATTRIBUTE_REF, &dst, sizeof(dst));
	if ((src) && (dst)) {
	vx_uint32 w1 = 0, h1 = 0;
	vx_df_image f1 = VX_DF_IMAGE_VIRT;

	vxQueryImage(src, VX_IMAGE_ATTRIBUTE_WIDTH, &w1, sizeof(w1));
	vxQueryImage(src, VX_IMAGE_ATTRIBUTE_HEIGHT, &h1, sizeof(h1));
	vxQueryImage(src, VX_IMAGE_ATTRIBUTE_FORMAT, &f1, sizeof(f1));

	/* fill in the meta data with the attributes so that the checker will pass */
	vx_uint32 width = (w1 + 1) / 2;
	vx_uint32 height = (h1 + 1) / 2;
	vxSetMetaFormatAttribute(meta, VX_IMAGE_ATTRIBUTE_FORMAT, &f1, sizeof(f1));
	vxSetMetaFormatAttribute(meta, VX_IMAGE_ATTRIBUTE_WIDTH, &width, sizeof(width));
	vxSetMetaFormatAttribute(meta, VX_IMAGE_ATTRIBUTE_HEIGHT, &height, sizeof(height));

	status = VX_SUCCESS;
	}
	if (src) vxReleaseImage(&src);
	if (dst) vxReleaseImage(&dst);
	vxReleaseParameter(&src_param);
	vxReleaseParameter(&dst_param);
	}
	}

	return status;
	}

	ExynosVpuKernelHalfScaleGaussian::ExynosVpuKernelHalfScaleGaussian(vx_char *name, vx_uint32 param_num)
	: ExynosVpuKernel(name, param_num)
	{
	strcpy(m_task_name, "halfscalegaussian");
	}

	ExynosVpuKernelHalfScaleGaussian::~ExynosVpuKernelHalfScaleGaussian(void)
	{

	}

	vx_status
	ExynosVpuKernelHalfScaleGaussian::setupBaseVxInfo(const vx_reference parameters[])
	{
	vx_status status = VX_FAILURE;

	vx_image input = (vx_image)parameters[0];

	status = vxGetValidAncestorRegionImage(input, &m_valid_rect);
	if (status != VX_SUCCESS) {
	VXLOGE("getting valid region fails, err:%d", status);
	}

	return status;
	}

	vx_status
	ExynosVpuKernelHalfScaleGaussian::initTask(vx_node node, const vx_reference *parameters)
	{
	vx_status status;

	#if 1
	status = initTaskFromBinary();
	if (status != VX_SUCCESS) {
	VXLOGE("init task from binary fails, %p, %p", node, parameters);
	goto EXIT;
	}
	#else
	status = initTaskFromApi();
	if (status != VX_SUCCESS) {
	VXLOGE("init task from api fails, %p, %p", node, parameters);
	goto EXIT;
	}
	#endif

	EXIT:
	return status;
	}

	vx_status
	ExynosVpuKernelHalfScaleGaussian::initTaskFromBinary(void)
	{
	vx_status status = VX_SUCCESS;
	ExynosVpuTaskIf *task_if_0;

	task_if_0 = initTask0FromBinary();
	if (task_if_0 == NULL) {
	VXLOGE("task0 isn't created");
	status = VX_FAILURE;
	goto EXIT;
	}

	EXIT:
	return status;
	}

	ExynosVpuTaskIf*
	ExynosVpuKernelHalfScaleGaussian::initTask0FromBinary(void)
	{
	vx_status status = VX_SUCCESS;
	int ret = NO_ERROR;

	ExynosVpuTaskIfWrapper *task_wr = new ExynosVpuTaskIfWrapper(this, 0);
	status = setTaskIfWrapper(0, task_wr);
	if (status != VX_SUCCESS) {
	VXLOGE("adding taskif wrapper fails");
	return NULL;
	}

	ExynosVpuTaskIf *task_if = task_wr->getTaskIf();
	ret = task_if->importTaskStr((struct vpul_task*)td_binary);
	if (ret != NO_ERROR) {
	VXLOGE("creating task descriptor fails, ret:%d", ret);
	status = VX_FAILURE;
	goto EXIT;
	}

	/* connect pu to io */
	task_if->setIoPu(VS4L_DIRECTION_IN, 0, (uint32_t)0);
	task_if->setIoPu(VS4L_DIRECTION_OT, 0, (uint32_t)3);

	EXIT:
	if (status == VX_SUCCESS)
	return task_if;
	else
	return NULL;
	}

	vx_status
	ExynosVpuKernelHalfScaleGaussian::initTaskFromApi(void)
	{
	vx_status status = VX_SUCCESS;
	ExynosVpuTaskIf *task_if_0;

	task_if_0 = initTask0FromApi();
	if (task_if_0 == NULL) {
	VXLOGE("task0 isn't created");
	status = VX_FAILURE;
	goto EXIT;
	}

	status = createStrFromObjectOfTask();
	if (status != VX_SUCCESS) {
	VXLOGE("creating task str fails");
	goto EXIT;
	}

	EXIT:
	return status;
	}

	ExynosVpuTaskIf*
	ExynosVpuKernelHalfScaleGaussian::initTask0FromApi(void)
	{
	vx_status status = VX_SUCCESS;

	ExynosVpuPuFactory pu_factory;

	ExynosVpuTaskIfWrapper *task_wr = new ExynosVpuTaskIfWrapper(this, 0);
	status = setTaskIfWrapper(0, task_wr);
	if (status != VX_SUCCESS) {
	VXLOGE("adding taskif wrapper fails");
	return NULL;
	}

	ExynosVpuTaskIf *task_if = task_wr->getTaskIf();
	ExynosVpuTask *task = new ExynosVpuTask(task_if);
	struct vpul_task *task_param = task->getTaskInfo();
	task_param->priority = m_priority;

	ExynosVpuVertex *start_vertex = new ExynosVpuVertex(task, VPUL_VERTEXT_START);
	ExynosVpuProcess *scale_process = new ExynosVpuProcess(task);
	ExynosVpuVertex *end_vertex = new ExynosVpuVertex(task, VPUL_VERTEXT_END);

	ExynosVpuVertex::connect(start_vertex, scale_process);
	ExynosVpuVertex::connect(scale_process, end_vertex);

	ExynosVpuIoSizeInout *iosize = new ExynosVpuIoSizeInout(scale_process);

	ExynosVpuIoSizeOpScale *sizeop_scale = new ExynosVpuIoSizeOpScale(scale_process);
	ExynosVpuIoSizeScale *iosize_down = new ExynosVpuIoSizeScale(scale_process, iosize, sizeop_scale);

	struct vpul_scales *scale_info;
	scale_info = sizeop_scale->getScaleInfo();
	scale_info->horizontal.denominator = 2;
	scale_info->horizontal.numerator = 1;
	scale_info->vertical.denominator = 2;
	scale_info->vertical.numerator = 1;

	/* define subchain */
	ExynosVpuSubchainHw *scale_subchain = new ExynosVpuSubchainHw(scale_process);

	/* define pu */
	ExynosVpuPu *dma_in = pu_factory.createPu(scale_subchain, VPU_PU_DMAIN0);
	dma_in->setSize(iosize, iosize);
	ExynosVpuPu *slf7x7 = pu_factory.createPu(scale_subchain, VPU_PU_SLF50);
	slf7x7->setSize(iosize, iosize);
	ExynosVpuPu *ds = pu_factory.createPu(scale_subchain, VPU_PU_DNSCALER0);
	ds->setSize(iosize, iosize_down);
	ExynosVpuPu *dma_out = pu_factory.createPu(scale_subchain, VPU_PU_DMAOT0);
	dma_out->setSize(iosize, iosize);

	ExynosVpuPu::connect(dma_in, 0, slf7x7, 0);
	ExynosVpuPu::connect(slf7x7, 0, ds, 0);
	ExynosVpuPu::connect(ds, 0, dma_out, 0);

	struct vpul_pu_dma dma_in_param = (struct vpul_pu_dma)dma_in->getParameter();
	struct vpul_pu_slf slf_param = (struct vpul_pu_slf)slf7x7->getParameter();
	struct vpul_pu_downscaler ds_param = (struct vpul_pu_downscaler)ds->getParameter();
	struct vpul_pu_dma dma_out_param = (struct vpul_pu_dma)dma_out->getParameter();

	slf_param->border_mode_up = 1;
	slf_param->border_mode_down = 1;
	slf_param->border_mode_left = 1;
	slf_param->border_mode_right = 1;
	slf_param->coefficient_fraction = 2;
	slf_param->maxp_sizes_filt_hor = 7;
	slf_param->maxp_sizes_filt_ver = 7;

	ds_param->interpolation_method = 2;

	/* connect pu to io */
	ExynosVpuIoExternalMem *io_external_mem;
	ExynosVpuMemmapExternal *memmap;
	ExynosVpuIoFixedMapRoi *fixed_roi;
	ExynosVpuIoTypesDesc *iotyps;

	io_external_mem = new ExynosVpuIoExternalMem(task);
	memmap = new ExynosVpuMemmapExternal(task, io_external_mem);
	fixed_roi = new ExynosVpuIoFixedMapRoi(scale_process, memmap);
	iotyps = new ExynosVpuIoTypesDesc(scale_process, fixed_roi);
	dma_in->setIoTypesDesc(iotyps);

	io_external_mem = new ExynosVpuIoExternalMem(task);
	memmap = new ExynosVpuMemmapExternal(task, io_external_mem);
	fixed_roi = new ExynosVpuIoFixedMapRoi(scale_process, memmap);
	iotyps = new ExynosVpuIoTypesDesc(scale_process, fixed_roi);
	dma_out->setIoTypesDesc(iotyps);

	status_t ret = NO_ERROR;
	ret \|= task_if->setIoPu(VS4L_DIRECTION_IN, 0, dma_in);
	ret \|= task_if->setIoPu(VS4L_DIRECTION_OT, 0, dma_out);
	if (ret != NO_ERROR) {
	VXLOGE("connectting pu to io fails");
	status = VX_FAILURE;
	goto EXIT;
	}

	EXIT:
	if (status == VX_SUCCESS)
	return task_if;
	else
	return NULL;
	}

	vx_status
	ExynosVpuKernelHalfScaleGaussian::updateTaskParamFromVX(vx_node node, const vx_reference *parameters)
	{
	vx_status status = VX_SUCCESS;

	if (!node)
	VXLOGE("invalid node, %p, %p", node, parameters);

	int32_t slf_coff_3x3[] = {1, 2, 1, 1, 2, 1};
	int32_t slf_coff_5x5[] = {1, 4, 6, 4, 1, 1, 4, 6, 4, 1};

	/* update vpu param from vx param */
	vx_scalar kernel_size = (vx_scalar)parameters[2];

	vx_border_mode_t border;
	status = vxQueryNode(node, VX_NODE_ATTRIBUTE_BORDER_MODE, &border, sizeof(border));
	if (status != VX_SUCCESS) {
	VXLOGE("querying node, err:%d", status);
	goto EXIT;
	}

	vx_int32 ksize;
	status = vxReadScalarValue(kernel_size, &ksize);
	if (status != VX_SUCCESS) {
	VXLOGE("reading scalar value fails");
	goto EXIT;
	}

	#if 1
	/* JUN_TBD, enable after test */
	ExynosVpuPu *slf;
	slf = getTask(0)->getPu(VPU_PU_SLF50, 1, 0);
	if (slf == NULL) {
	VXLOGE("getting pu fails");
	status = VX_FAILURE;
	goto EXIT;
	}

	struct vpul_pu_slf *slf_param;
	slf_param = (struct vpul_pu_slf*)slf->getParameter();
	switch (ksize) {
	case 3:
	slf_param->filter_size_mode = 1;
	((ExynosVpuPuSlf*)slf)->setStaticCoffValue(slf_coff_3x3, 3, sizeof(slf_coff_3x3)/sizeof(slf_coff_3x3[0]));
	break;
	case 5:
	slf_param->filter_size_mode = 2;
	((ExynosVpuPuSlf*)slf)->setStaticCoffValue(slf_coff_5x5, 5, sizeof(slf_coff_5x5)/sizeof(slf_coff_5x5[0]));
	break;
	default:
	VXLOGE("un-supported kernel size: %d", ksize);
	break;
	}

	switch (border.mode) {
	case VX_BORDER_MODE_UNDEFINED:
	case VX_BORDER_MODE_CONSTANT:
	slf_param->border_fill = 0;
	slf_param->border_fill_constant = border.constant_value;
	break;
	case VX_BORDER_MODE_REPLICATE:
	slf_param->border_fill = 2;
	break;
	default:
	break;
	}
	#endif

	EXIT:
	return status;
	}

	vx_status
	ExynosVpuKernelHalfScaleGaussian::initVxIo(const vx_reference *parameters)
	{
	vx_status status = VX_SUCCESS;

	ExynosVpuTaskIfWrapper *task_wr_0 = m_task_wr_list[0];

	/* connect vx param to io */
	vx_param_info_t param_info;
	memset(&param_info, 0x0, sizeof(param_info));

	param_info.image.plane = 0;
	status = task_wr_0->setIoVxParam(VS4L_DIRECTION_IN, 0, 0, param_info);
	if (status != VX_SUCCESS) {
	VXLOGE("assigning param fails, %p", parameters);
	goto EXIT;
	}

	param_info.image.plane = 0;
	status = task_wr_0->setIoVxParam(VS4L_DIRECTION_OT, 0, 1, param_info);
	if (status != VX_SUCCESS) {
	VXLOGE("assigning param fails, %p", parameters);
	goto EXIT;
	}

	EXIT:
	return status;
	}

	}; /* namespace android */