libvision/kernel/vpu/ExynosVpuKernelConvertDepth.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 "ExynosVpuKernelConvertDepth"
 #include <cutils/log.h>

 #include "ExynosVpuKernelConvertDepth.h"

 #include "vpu_kernel_util.h"

 #include "td-binary-convertdepth_s162u8.h"

 namespace android {

 using namespace std;

 static vx_uint16 td_binary_s162u8[] =
     TASK_test_binary_convertdepth_s162u8_from_VDE_DS;

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

     if (index == 0) {
         vx_parameter param = vxGetParameterByIndex(node, index);
         if (param) {
             vx_image input = 0;
             status = vxQueryParameter(param, VX_PARAMETER_ATTRIBUTE_REF, &input, sizeof(input));
             if ((status == VX_SUCCESS) && input) {
                 vx_df_image format = 0;
                 status = vxQueryImage(input, VX_IMAGE_ATTRIBUTE_FORMAT, &format, sizeof(format));
                 if ((status != VX_SUCCESS) ||
                     (format == VX_DF_IMAGE_U8)  ||
                     (format == VX_DF_IMAGE_U16) ||
                     (format == VX_DF_IMAGE_U32) ||
                     (format == VX_DF_IMAGE_S32) ||
                     (format == VX_DF_IMAGE_S16)) {
                     status = VX_SUCCESS;
                 } else {
                     status = VX_ERROR_INVALID_PARAMETERS;
                 }
                 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_ENUM) {
                     vx_enum overflow_policy = 0;
                     vxReadScalarValue(scalar, &overflow_policy);
                     if ((overflow_policy == VX_CONVERT_POLICY_WRAP) ||
                         (overflow_policy == VX_CONVERT_POLICY_SATURATE)) {
                         status = VX_SUCCESS;
                     } else {
                         printf("Overflow given as %08x\n", overflow_policy);
                         status = VX_ERROR_INVALID_VALUE;
                     }
                 } else {
                     status = VX_ERROR_INVALID_TYPE;
                 }
                 vxReleaseScalar(&scalar);
             }
             vxReleaseParameter(&param);
         }
     } else if (index == 3) {
         vx_parameter param = vxGetParameterByIndex(node, index);
         if (param) {
             vx_scalar scalar = 0;
             status = vxQueryParameter(param, VX_PARAMETER_ATTRIBUTE_REF, &scalar, sizeof(scalar));
             if (status == VX_SUCCESS) {
                 vx_enum type = 0;
                 vxQueryScalar(scalar, VX_SCALAR_ATTRIBUTE_TYPE, &type, sizeof(type));
                 if (type == VX_TYPE_INT32) {
                     vx_int32 shift = 0;
                     status = vxReadScalarValue(scalar, &shift);
                     if (status == VX_SUCCESS) {
                         /*! \internal Allowing \f$ 0 \le shift < 32 \f$ could
                          * produce weird results for smaller bit depths */
                         if (shift < 0 || shift >= 32) {
                             status = VX_ERROR_INVALID_VALUE;
                         }
                         /* status should be VX_SUCCESS from call */
                     }
                 } else {
                     status = VX_ERROR_INVALID_TYPE;
                 }
                 vxReleaseScalar(&scalar);
             }
             vxReleaseParameter(&param);
         }
     }

     return status;
 }

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

     if (index == 1) {
         vx_parameter param[2] = {
             vxGetParameterByIndex(node, 0),
             vxGetParameterByIndex(node, 1),
         };
         if (param[0] && param[1]) {
             vx_image images[2] = {0,0};
             status  = VX_SUCCESS;
             status |= vxQueryParameter(param[0], VX_PARAMETER_ATTRIBUTE_REF, &images[0], sizeof(images[0]));
             status |= vxQueryParameter(param[1], VX_PARAMETER_ATTRIBUTE_REF, &images[1], sizeof(images[1]));
             if ((status == VX_SUCCESS) && (images[0]) && (images[1])) {
                 vx_uint32 width = 0, height = 0;
                 vx_df_image format[2] = {VX_DF_IMAGE_VIRT, VX_DF_IMAGE_VIRT};
                 status |= vxQueryImage(images[0], VX_IMAGE_ATTRIBUTE_WIDTH, &width, sizeof(width));
                 status |= vxQueryImage(images[0], VX_IMAGE_ATTRIBUTE_HEIGHT, &height, sizeof(height));
                 status |= vxQueryImage(images[0], VX_IMAGE_ATTRIBUTE_FORMAT, &format[0], sizeof(format[0]));
                 status |= vxQueryImage(images[1], VX_IMAGE_ATTRIBUTE_FORMAT, &format[1], sizeof(format[1]));
                 if (((format[0] == VX_DF_IMAGE_U8)  && (format[1] == VX_DF_IMAGE_S16)) ||
                     ((format[0] == VX_DF_IMAGE_U8)  && (format[1] == VX_DF_IMAGE_U16)) ||
                     ((format[0] == VX_DF_IMAGE_U8)  && (format[1] == VX_DF_IMAGE_U32)) ||
                     ((format[0] == VX_DF_IMAGE_U16) && (format[1] == VX_DF_IMAGE_U8))  ||
                     ((format[0] == VX_DF_IMAGE_U16) && (format[1] == VX_DF_IMAGE_U32)) ||
                     ((format[0] == VX_DF_IMAGE_S16) && (format[1] == VX_DF_IMAGE_S32)) ||
                     ((format[0] == VX_DF_IMAGE_U32) && (format[1] == VX_DF_IMAGE_U8))  ||
                     ((format[0] == VX_DF_IMAGE_U32) && (format[1] == VX_DF_IMAGE_U16)) ||
                     ((format[0] == VX_DF_IMAGE_S32) && (format[1] == VX_DF_IMAGE_S16)) ||
                     ((format[0] == VX_DF_IMAGE_S16) && (format[1] == VX_DF_IMAGE_U8))) {
                     vxSetMetaFormatAttribute(meta, VX_IMAGE_ATTRIBUTE_FORMAT, &format[1], sizeof(format[1]));
                     vxSetMetaFormatAttribute(meta, VX_IMAGE_ATTRIBUTE_WIDTH, &width, sizeof(width));
                     vxSetMetaFormatAttribute(meta, VX_IMAGE_ATTRIBUTE_HEIGHT, &height, sizeof(height));

                     status = VX_SUCCESS;
                 } else {
                     status = VX_ERROR_INVALID_PARAMETERS;
                 }
                 vxReleaseImage(&images[0]);
                 vxReleaseImage(&images[1]);
             }
             vxReleaseParameter(&param[0]);
             vxReleaseParameter(&param[1]);
         }
     }

     return status;
 }

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

 ExynosVpuKernelConvertDepth::~ExynosVpuKernelConvertDepth(void)
 {

 }

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

     vx_image input = (vx_image)parameters[0];
     vx_image output = (vx_image)parameters[1];

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

     status |= vxQueryImage(input, VX_IMAGE_ATTRIBUTE_FORMAT, &m_src_format, sizeof(m_src_format));
     status |= vxQueryImage(output, VX_IMAGE_ATTRIBUTE_FORMAT, &m_dst_format, sizeof(m_dst_format));
     if (status != VX_SUCCESS) {
         VXLOGE("querying image format fails, err:%d", status);
         return status;
     }

     return status;
 }

 vx_status
 ExynosVpuKernelConvertDepth::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
 ExynosVpuKernelConvertDepth::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*
 ExynosVpuKernelConvertDepth::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_s162u8);
     if (ret != NO_ERROR) {
         VXLOGE("creating task descriptor fails, ret:%d", ret);
         status = VX_FAILURE;
     }

     /* connect pu to io */
     task_if->setIoPu(VS4L_DIRECTION_IN, 0, (uint32_t)0);
     task_if->setIoPu(VS4L_DIRECTION_OT, 0, (uint32_t)2);

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

 vx_status
 ExynosVpuKernelConvertDepth::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*
 ExynosVpuKernelConvertDepth::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 *convert_process = new ExynosVpuProcess(task);
     ExynosVpuVertex *end_vertex = new ExynosVpuVertex(task, VPUL_VERTEXT_END);

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

     ExynosVpuIoSizeInout *iosize = new ExynosVpuIoSizeInout(convert_process);

     /* define subchain */
     ExynosVpuSubchainHw *calb_subchain = new ExynosVpuSubchainHw(convert_process);

     /* define pu */
     ExynosVpuPu *dma_in = pu_factory.createPu(calb_subchain, VPU_PU_DMAIN0);
     dma_in->setSize(iosize, iosize);
     ExynosVpuPu *calb = pu_factory.createPu(calb_subchain, VPU_PU_CALB0);
     calb->setSize(iosize, iosize);
     ExynosVpuPu *dma_out = pu_factory.createPu(calb_subchain, VPU_PU_DMAOT0);
     dma_out->setSize(iosize, iosize);

     ExynosVpuPu::connect(dma_in, 0, calb, 0);
     ExynosVpuPu::connect(calb, 0, dma_out, 0);

     struct vpul_pu_dma *dma_in_param = (struct vpul_pu_dma*)dma_in->getParameter();
     struct vpul_pu_calb *calb_param = (struct vpul_pu_calb*)calb->getParameter();
     struct vpul_pu_dma *dma_out_param = (struct vpul_pu_dma*)dma_out->getParameter();

     calb_param->input_enable = 1;

     switch(m_src_format) {
     case VX_DF_IMAGE_U8:
         calb_param->signed_in0 = 0;
         calb_param->bits_in0 = 0;
         break;
     case VX_DF_IMAGE_U16:
         calb_param->signed_in0 = 0;
         calb_param->bits_in0 = 1;
         break;
     case VX_DF_IMAGE_S16:
         calb_param->signed_in0 = 1;
         calb_param->bits_in0 = 1;
         break;
     case VX_DF_IMAGE_U32:
         calb_param->signed_in0 = 0;
         calb_param->bits_in0 = 2;
         break;
     case VX_DF_IMAGE_S32:
         calb_param->signed_in0 = 1;
         calb_param->bits_in0 = 2;
         break;
     default:
         VXLOGE("un-supported type, 0x%x", m_src_format);
         goto EXIT;
         break;
     }

     switch(m_dst_format) {
     case VX_DF_IMAGE_U8:
         calb_param->signed_out0 = 0;
         calb_param->bits_out0 = 0;
         break;
     case VX_DF_IMAGE_U16:
         calb_param->signed_out0 = 0;
         calb_param->bits_out0 = 1;
         break;
     case VX_DF_IMAGE_S16:
         calb_param->signed_out0 = 1;
         calb_param->bits_out0 = 1;
         break;
     case VX_DF_IMAGE_U32:
         calb_param->signed_out0 = 0;
         calb_param->bits_out0 = 2;
         break;
     case VX_DF_IMAGE_S32:
         calb_param->signed_out0 = 1;
         calb_param->bits_out0 = 2;
         break;
     default:
         VXLOGE("un-supported type, 0x%x", m_dst_format);
         goto EXIT;
         break;
     }

     /* set scale direction */
     if (m_src_format == VX_DF_IMAGE_S16) {
         switch (m_dst_format) {
         case VX_DF_IMAGE_U8:
             /* down-shift */
             calb_param->operation_code = 15;
             break;
         case VX_DF_IMAGE_U32:
         case VX_DF_IMAGE_S32:
             /* up-shift */
             calb_param->operation_code = 14;
             break;
         default:
             /* do nothing */
             break;
         }
     } else if (m_src_format == VX_DF_IMAGE_S32) {
         switch (m_dst_format) {
         case VX_DF_IMAGE_U8:
         case VX_DF_IMAGE_U16:
         case VX_DF_IMAGE_S16:
             /* down-shift */
             calb_param->operation_code = 15;
             break;
         default:
             /* do nothing */
             break;
         }
     }

     /* 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(convert_process, memmap);
     iotyps = new ExynosVpuIoTypesDesc(convert_process, fixed_roi);
     dma_in->setIoTypesDesc(iotyps);

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

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

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

     /* update vpu param from vx param */
     vx_enum policy;
     status = vxReadScalarValue((vx_scalar)parameters[2], &policy);
     if (status != VX_SUCCESS) {
         VXLOGE("reading scalar, err:%d", status);
         goto EXIT;
     }

     vx_int32 shift;
     status = vxReadScalarValue((vx_scalar)parameters[3], &shift);
     if (status != VX_SUCCESS) {
         VXLOGE("reading scalar fails, err:%d", status);
         goto EXIT;
     }

     ExynosVpuPu *calb;
     calb = getTask(0)->getPu(VPU_PU_CALB0, 1, 0);
     if (calb == NULL) {
         VXLOGE("getting pu fails");
         status = VX_FAILURE;
         goto EXIT;
     }

     struct vpul_pu_calb *calb_param;
     calb_param = (struct vpul_pu_calb*)calb->getParameter();

     switch (policy) {
     case VX_CONVERT_POLICY_WRAP:
         calb_param->trunc_out = 1;
         break;
     case VX_CONVERT_POLICY_SATURATE:
         calb_param->trunc_out = 0;
         break;
     default:
         VXLOGE("un-defined enum: 0x%x", policy);
         break;
     }
     calb_param->shift_bits = shift;

     switch(m_src_format) {
     case VX_DF_IMAGE_U8:
         calb_param->signed_in0 = 0;
         calb_param->bits_in0 = 0;
         break;
     case VX_DF_IMAGE_S16:
         calb_param->signed_in0 = 1;
         calb_param->bits_in0 = 1;
         break;
     default:
         VXLOGE("un-supported type, 0x%x", m_src_format);
         goto EXIT;
         break;
     }

     switch(m_dst_format) {
     case VX_DF_IMAGE_U8:
         calb_param->signed_out0 = 0;
         calb_param->bits_out0 = 0;
         break;
     case VX_DF_IMAGE_S16:
         calb_param->signed_out0 = 1;
         calb_param->bits_out0 = 1;
         break;
     default:
         VXLOGE("un-supported type, 0x%x", m_dst_format);
         goto EXIT;
         break;
     }

     /* set scale direction */
     if ((m_src_format == VX_DF_IMAGE_S16) && (m_dst_format == VX_DF_IMAGE_U8)) {
         /* down-shift */
         calb_param->operation_code = 15;
     } else if ((m_src_format == VX_DF_IMAGE_U8) && (m_dst_format == VX_DF_IMAGE_S16)) {
         /* up-shift */
         calb_param->operation_code = 14;
     } else {
         VXLOGE("un-supported type, 0x%x 0x%x", m_src_format, m_dst_format);
         goto EXIT;
     }

 EXIT:
     return status;
 }

 vx_status
 ExynosVpuKernelConvertDepth::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 "ExynosVpuKernelConvertDepth"
	#include <cutils/log.h>

	#include "ExynosVpuKernelConvertDepth.h"

	#include "vpu_kernel_util.h"

	#include "td-binary-convertdepth_s162u8.h"

	namespace android {

	using namespace std;

	static vx_uint16 td_binary_s162u8[] =
	TASK_test_binary_convertdepth_s162u8_from_VDE_DS;

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

	if (index == 0) {
	vx_parameter param = vxGetParameterByIndex(node, index);
	if (param) {
	vx_image input = 0;
	status = vxQueryParameter(param, VX_PARAMETER_ATTRIBUTE_REF, &input, sizeof(input));
	if ((status == VX_SUCCESS) && input) {
	vx_df_image format = 0;
	status = vxQueryImage(input, VX_IMAGE_ATTRIBUTE_FORMAT, &format, sizeof(format));
	if ((status != VX_SUCCESS) \|\|
	(format == VX_DF_IMAGE_U8) \|\|
	(format == VX_DF_IMAGE_U16) \|\|
	(format == VX_DF_IMAGE_U32) \|\|
	(format == VX_DF_IMAGE_S32) \|\|
	(format == VX_DF_IMAGE_S16)) {
	status = VX_SUCCESS;
	} else {
	status = VX_ERROR_INVALID_PARAMETERS;
	}
	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_ENUM) {
	vx_enum overflow_policy = 0;
	vxReadScalarValue(scalar, &overflow_policy);
	if ((overflow_policy == VX_CONVERT_POLICY_WRAP) \|\|
	(overflow_policy == VX_CONVERT_POLICY_SATURATE)) {
	status = VX_SUCCESS;
	} else {
	printf("Overflow given as %08x\n", overflow_policy);
	status = VX_ERROR_INVALID_VALUE;
	}
	} else {
	status = VX_ERROR_INVALID_TYPE;
	}
	vxReleaseScalar(&scalar);
	}
	vxReleaseParameter(&param);
	}
	} else if (index == 3) {
	vx_parameter param = vxGetParameterByIndex(node, index);
	if (param) {
	vx_scalar scalar = 0;
	status = vxQueryParameter(param, VX_PARAMETER_ATTRIBUTE_REF, &scalar, sizeof(scalar));
	if (status == VX_SUCCESS) {
	vx_enum type = 0;
	vxQueryScalar(scalar, VX_SCALAR_ATTRIBUTE_TYPE, &type, sizeof(type));
	if (type == VX_TYPE_INT32) {
	vx_int32 shift = 0;
	status = vxReadScalarValue(scalar, &shift);
	if (status == VX_SUCCESS) {
	/*! \internal Allowing \f$ 0 \le shift < 32 \f$ could
	* produce weird results for smaller bit depths */
	if (shift < 0 \|\| shift >= 32) {
	status = VX_ERROR_INVALID_VALUE;
	}
	/* status should be VX_SUCCESS from call */
	}
	} else {
	status = VX_ERROR_INVALID_TYPE;
	}
	vxReleaseScalar(&scalar);
	}
	vxReleaseParameter(&param);
	}
	}

	return status;
	}

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

	if (index == 1) {
	vx_parameter param[2] = {
	vxGetParameterByIndex(node, 0),
	vxGetParameterByIndex(node, 1),
	};
	if (param[0] && param[1]) {
	vx_image images[2] = {0,0};
	status = VX_SUCCESS;
	status \|= vxQueryParameter(param[0], VX_PARAMETER_ATTRIBUTE_REF, &images[0], sizeof(images[0]));
	status \|= vxQueryParameter(param[1], VX_PARAMETER_ATTRIBUTE_REF, &images[1], sizeof(images[1]));
	if ((status == VX_SUCCESS) && (images[0]) && (images[1])) {
	vx_uint32 width = 0, height = 0;
	vx_df_image format[2] = {VX_DF_IMAGE_VIRT, VX_DF_IMAGE_VIRT};
	status \|= vxQueryImage(images[0], VX_IMAGE_ATTRIBUTE_WIDTH, &width, sizeof(width));
	status \|= vxQueryImage(images[0], VX_IMAGE_ATTRIBUTE_HEIGHT, &height, sizeof(height));
	status \|= vxQueryImage(images[0], VX_IMAGE_ATTRIBUTE_FORMAT, &format[0], sizeof(format[0]));
	status \|= vxQueryImage(images[1], VX_IMAGE_ATTRIBUTE_FORMAT, &format[1], sizeof(format[1]));
	if (((format[0] == VX_DF_IMAGE_U8) && (format[1] == VX_DF_IMAGE_S16)) \|\|
	((format[0] == VX_DF_IMAGE_U8) && (format[1] == VX_DF_IMAGE_U16)) \|\|
	((format[0] == VX_DF_IMAGE_U8) && (format[1] == VX_DF_IMAGE_U32)) \|\|
	((format[0] == VX_DF_IMAGE_U16) && (format[1] == VX_DF_IMAGE_U8)) \|\|
	((format[0] == VX_DF_IMAGE_U16) && (format[1] == VX_DF_IMAGE_U32)) \|\|
	((format[0] == VX_DF_IMAGE_S16) && (format[1] == VX_DF_IMAGE_S32)) \|\|
	((format[0] == VX_DF_IMAGE_U32) && (format[1] == VX_DF_IMAGE_U8)) \|\|
	((format[0] == VX_DF_IMAGE_U32) && (format[1] == VX_DF_IMAGE_U16)) \|\|
	((format[0] == VX_DF_IMAGE_S32) && (format[1] == VX_DF_IMAGE_S16)) \|\|
	((format[0] == VX_DF_IMAGE_S16) && (format[1] == VX_DF_IMAGE_U8))) {
	vxSetMetaFormatAttribute(meta, VX_IMAGE_ATTRIBUTE_FORMAT, &format[1], sizeof(format[1]));
	vxSetMetaFormatAttribute(meta, VX_IMAGE_ATTRIBUTE_WIDTH, &width, sizeof(width));
	vxSetMetaFormatAttribute(meta, VX_IMAGE_ATTRIBUTE_HEIGHT, &height, sizeof(height));

	status = VX_SUCCESS;
	} else {
	status = VX_ERROR_INVALID_PARAMETERS;
	}
	vxReleaseImage(&images[0]);
	vxReleaseImage(&images[1]);
	}
	vxReleaseParameter(&param[0]);
	vxReleaseParameter(&param[1]);
	}
	}

	return status;
	}

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

	ExynosVpuKernelConvertDepth::~ExynosVpuKernelConvertDepth(void)
	{

	}

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

	vx_image input = (vx_image)parameters[0];
	vx_image output = (vx_image)parameters[1];

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

	status \|= vxQueryImage(input, VX_IMAGE_ATTRIBUTE_FORMAT, &m_src_format, sizeof(m_src_format));
	status \|= vxQueryImage(output, VX_IMAGE_ATTRIBUTE_FORMAT, &m_dst_format, sizeof(m_dst_format));
	if (status != VX_SUCCESS) {
	VXLOGE("querying image format fails, err:%d", status);
	return status;
	}

	return status;
	}

	vx_status
	ExynosVpuKernelConvertDepth::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
	ExynosVpuKernelConvertDepth::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*
	ExynosVpuKernelConvertDepth::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_s162u8);
	if (ret != NO_ERROR) {
	VXLOGE("creating task descriptor fails, ret:%d", ret);
	status = VX_FAILURE;
	}

	/* connect pu to io */
	task_if->setIoPu(VS4L_DIRECTION_IN, 0, (uint32_t)0);
	task_if->setIoPu(VS4L_DIRECTION_OT, 0, (uint32_t)2);

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

	vx_status
	ExynosVpuKernelConvertDepth::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*
	ExynosVpuKernelConvertDepth::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 *convert_process = new ExynosVpuProcess(task);
	ExynosVpuVertex *end_vertex = new ExynosVpuVertex(task, VPUL_VERTEXT_END);

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

	ExynosVpuIoSizeInout *iosize = new ExynosVpuIoSizeInout(convert_process);

	/* define subchain */
	ExynosVpuSubchainHw *calb_subchain = new ExynosVpuSubchainHw(convert_process);

	/* define pu */
	ExynosVpuPu *dma_in = pu_factory.createPu(calb_subchain, VPU_PU_DMAIN0);
	dma_in->setSize(iosize, iosize);
	ExynosVpuPu *calb = pu_factory.createPu(calb_subchain, VPU_PU_CALB0);
	calb->setSize(iosize, iosize);
	ExynosVpuPu *dma_out = pu_factory.createPu(calb_subchain, VPU_PU_DMAOT0);
	dma_out->setSize(iosize, iosize);

	ExynosVpuPu::connect(dma_in, 0, calb, 0);
	ExynosVpuPu::connect(calb, 0, dma_out, 0);

	struct vpul_pu_dma dma_in_param = (struct vpul_pu_dma)dma_in->getParameter();
	struct vpul_pu_calb calb_param = (struct vpul_pu_calb)calb->getParameter();
	struct vpul_pu_dma dma_out_param = (struct vpul_pu_dma)dma_out->getParameter();

	calb_param->input_enable = 1;

	switch(m_src_format) {
	case VX_DF_IMAGE_U8:
	calb_param->signed_in0 = 0;
	calb_param->bits_in0 = 0;
	break;
	case VX_DF_IMAGE_U16:
	calb_param->signed_in0 = 0;
	calb_param->bits_in0 = 1;
	break;
	case VX_DF_IMAGE_S16:
	calb_param->signed_in0 = 1;
	calb_param->bits_in0 = 1;
	break;
	case VX_DF_IMAGE_U32:
	calb_param->signed_in0 = 0;
	calb_param->bits_in0 = 2;
	break;
	case VX_DF_IMAGE_S32:
	calb_param->signed_in0 = 1;
	calb_param->bits_in0 = 2;
	break;
	default:
	VXLOGE("un-supported type, 0x%x", m_src_format);
	goto EXIT;
	break;
	}

	switch(m_dst_format) {
	case VX_DF_IMAGE_U8:
	calb_param->signed_out0 = 0;
	calb_param->bits_out0 = 0;
	break;
	case VX_DF_IMAGE_U16:
	calb_param->signed_out0 = 0;
	calb_param->bits_out0 = 1;
	break;
	case VX_DF_IMAGE_S16:
	calb_param->signed_out0 = 1;
	calb_param->bits_out0 = 1;
	break;
	case VX_DF_IMAGE_U32:
	calb_param->signed_out0 = 0;
	calb_param->bits_out0 = 2;
	break;
	case VX_DF_IMAGE_S32:
	calb_param->signed_out0 = 1;
	calb_param->bits_out0 = 2;
	break;
	default:
	VXLOGE("un-supported type, 0x%x", m_dst_format);
	goto EXIT;
	break;
	}

	/* set scale direction */
	if (m_src_format == VX_DF_IMAGE_S16) {
	switch (m_dst_format) {
	case VX_DF_IMAGE_U8:
	/* down-shift */
	calb_param->operation_code = 15;
	break;
	case VX_DF_IMAGE_U32:
	case VX_DF_IMAGE_S32:
	/* up-shift */
	calb_param->operation_code = 14;
	break;
	default:
	/* do nothing */
	break;
	}
	} else if (m_src_format == VX_DF_IMAGE_S32) {
	switch (m_dst_format) {
	case VX_DF_IMAGE_U8:
	case VX_DF_IMAGE_U16:
	case VX_DF_IMAGE_S16:
	/* down-shift */
	calb_param->operation_code = 15;
	break;
	default:
	/* do nothing */
	break;
	}
	}

	/* 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(convert_process, memmap);
	iotyps = new ExynosVpuIoTypesDesc(convert_process, fixed_roi);
	dma_in->setIoTypesDesc(iotyps);

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

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

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

	/* update vpu param from vx param */
	vx_enum policy;
	status = vxReadScalarValue((vx_scalar)parameters[2], &policy);
	if (status != VX_SUCCESS) {
	VXLOGE("reading scalar, err:%d", status);
	goto EXIT;
	}

	vx_int32 shift;
	status = vxReadScalarValue((vx_scalar)parameters[3], &shift);
	if (status != VX_SUCCESS) {
	VXLOGE("reading scalar fails, err:%d", status);
	goto EXIT;
	}

	ExynosVpuPu *calb;
	calb = getTask(0)->getPu(VPU_PU_CALB0, 1, 0);
	if (calb == NULL) {
	VXLOGE("getting pu fails");
	status = VX_FAILURE;
	goto EXIT;
	}

	struct vpul_pu_calb *calb_param;
	calb_param = (struct vpul_pu_calb*)calb->getParameter();

	switch (policy) {
	case VX_CONVERT_POLICY_WRAP:
	calb_param->trunc_out = 1;
	break;
	case VX_CONVERT_POLICY_SATURATE:
	calb_param->trunc_out = 0;
	break;
	default:
	VXLOGE("un-defined enum: 0x%x", policy);
	break;
	}
	calb_param->shift_bits = shift;

	switch(m_src_format) {
	case VX_DF_IMAGE_U8:
	calb_param->signed_in0 = 0;
	calb_param->bits_in0 = 0;
	break;
	case VX_DF_IMAGE_S16:
	calb_param->signed_in0 = 1;
	calb_param->bits_in0 = 1;
	break;
	default:
	VXLOGE("un-supported type, 0x%x", m_src_format);
	goto EXIT;
	break;
	}

	switch(m_dst_format) {
	case VX_DF_IMAGE_U8:
	calb_param->signed_out0 = 0;
	calb_param->bits_out0 = 0;
	break;
	case VX_DF_IMAGE_S16:
	calb_param->signed_out0 = 1;
	calb_param->bits_out0 = 1;
	break;
	default:
	VXLOGE("un-supported type, 0x%x", m_dst_format);
	goto EXIT;
	break;
	}

	/* set scale direction */
	if ((m_src_format == VX_DF_IMAGE_S16) && (m_dst_format == VX_DF_IMAGE_U8)) {
	/* down-shift */
	calb_param->operation_code = 15;
	} else if ((m_src_format == VX_DF_IMAGE_U8) && (m_dst_format == VX_DF_IMAGE_S16)) {
	/* up-shift */
	calb_param->operation_code = 14;
	} else {
	VXLOGE("un-supported type, 0x%x 0x%x", m_src_format, m_dst_format);
	goto EXIT;
	}

	EXIT:
	return status;
	}

	vx_status
	ExynosVpuKernelConvertDepth::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 */