test_conformance/test_box3x3.c - third_party/github.com/KhronosGroup/OpenVX-cts - Git at Google

 /*

  * Copyright (c) 2012-2017 The Khronos Group Inc.
  *
  * 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.
  */

 #include "test_engine/test.h"
 #include <VX/vx.h>
 #include <VX/vxu.h>
 #include "shared_functions.h"


 TESTCASE(Box3x3, CT_VXContext, ct_setup_vx_context, 0)


 TEST(Box3x3, testNodeCreation)
 {
     vx_context context = context_->vx_context_;
     vx_image src_image = 0, dst_image = 0;
     vx_graph graph = 0;
     vx_node node = 0;

     ASSERT_VX_OBJECT(src_image = vxCreateImage(context, 128, 128, VX_DF_IMAGE_U8), VX_TYPE_IMAGE);

     ASSERT_VX_OBJECT(dst_image = vxCreateImage(context, 128, 128, VX_DF_IMAGE_U8), VX_TYPE_IMAGE);

     ASSERT_VX_OBJECT(graph = vxCreateGraph(context), VX_TYPE_GRAPH);

     ASSERT_VX_OBJECT(node = vxBox3x3Node(graph, src_image, dst_image), VX_TYPE_NODE);

     VX_CALL(vxReleaseNode(&node));
     VX_CALL(vxReleaseGraph(&graph));
     VX_CALL(vxReleaseImage(&dst_image));
     VX_CALL(vxReleaseImage(&src_image));

     ASSERT(node == 0);
     ASSERT(graph == 0);
     ASSERT(dst_image == 0);
     ASSERT(src_image == 0);
 }


 // Generate input to cover these requirements:
 // The input data should have areas that have zero sum and maximum sum
 // and everything in between (unless the running time is too high).
 static CT_Image box3x3_generate_simple_gradient(const char* fileName, int step_x, int step_y)
 {
     CT_Image image = NULL;
     uint32_t x, y;

     ASSERT_(return 0, step_x > 0);
     ASSERT_(return 0, step_y > 0);

     ASSERT_NO_FAILURE_(return 0,
             image = ct_allocate_image(256 * step_x, 256 * step_y, VX_DF_IMAGE_U8));

     for (y = 0; y < image->height; y++)
     {
         for (x = 0; x < image->width; x++)
         {
             uint8_t* ptr = CT_IMAGE_DATA_PTR_8U(image, x, y);
             int v = (y / step_y) + (x / step_x);
             *ptr = (uint8_t)v;
         }
     }

     return image;
 }

 // Generate input to cover these requirements:
 // The input data should contain a bi-level image with every possible
 // 3x3 block of pixels taking only the minimum and the maximum intensity values.
 static CT_Image box3x3_generate_bi_level(const char* fileName, int width, int height)
 {
     CT_Image image = NULL;
     uint32_t x, y;
     uint64_t rng;
     int total = width * height;

     CT_RNG_INIT(rng, CT_RNG_NEXT(CT()->seed_));

     ASSERT_NO_FAILURE_(return 0,
             image = ct_allocate_image(width, height, VX_DF_IMAGE_U8));

     for (y = 0; y < image->height; y++)
     {
         for (x = 0; x < image->width; x++)
         {
             uint8_t* ptr = CT_IMAGE_DATA_PTR_8U(image, x, y);
             int v = CT_RNG_NEXT_INT(rng, 0, 3 * total);
             *ptr = (v < (int)(total + x + y)) ? 255 : 0;
         }
     }

     return image;
 }

 // Generate input to cover these requirements:
 // There should be a image with randomly generated pixel intensities.
 static CT_Image box3x3_generate_random(const char* fileName, int width, int height)
 {
     CT_Image image;

     ASSERT_NO_FAILURE_(return 0,
             image = ct_allocate_ct_image_random(width, height, VX_DF_IMAGE_U8, &CT()->seed_, 0, 256));

     return image;
 }

 static CT_Image box3x3_read_image(const char* fileName, int width, int height)
 {
     CT_Image image = NULL;
     ASSERT_(return 0, width == 0 && height == 0);
     image = ct_read_image(fileName, 1);
     ASSERT_(return 0, image);
     ASSERT_(return 0, image->format == VX_DF_IMAGE_U8);
     return image;
 }


 static uint8_t box3x3_calculate(CT_Image src, uint32_t x, uint32_t y)
 {
     uint8_t res = (uint8_t)(ct_floor_u32_no_overflow( ((float)(
             (int16_t)(*CT_IMAGE_DATA_PTR_8U(src, x + 0, y + 0)) +
                       *CT_IMAGE_DATA_PTR_8U(src, x - 1, y + 0) +
                       *CT_IMAGE_DATA_PTR_8U(src, x + 1, y + 0) +
                       *CT_IMAGE_DATA_PTR_8U(src, x + 0, y - 1) +
                       *CT_IMAGE_DATA_PTR_8U(src, x - 1, y - 1) +
                       *CT_IMAGE_DATA_PTR_8U(src, x + 1, y - 1) +
                       *CT_IMAGE_DATA_PTR_8U(src, x + 0, y + 1) +
                       *CT_IMAGE_DATA_PTR_8U(src, x - 1, y + 1) +
                       *CT_IMAGE_DATA_PTR_8U(src, x + 1, y + 1)) )/9 ) );
     return res;
 }

 static uint8_t box3x3_calculate_replicate(CT_Image src, uint32_t x_, uint32_t y_)
 {
     int32_t x = (int)x_;
     int32_t y = (int)y_;
     uint8_t res = (uint8_t)(ct_floor_u32_no_overflow( ((float)(
             (int16_t)(CT_IMAGE_DATA_REPLICATE_8U(src, x + 0, y + 0)) +
                       CT_IMAGE_DATA_REPLICATE_8U(src, x - 1, y + 0) +
                       CT_IMAGE_DATA_REPLICATE_8U(src, x + 1, y + 0) +
                       CT_IMAGE_DATA_REPLICATE_8U(src, x + 0, y - 1) +
                       CT_IMAGE_DATA_REPLICATE_8U(src, x - 1, y - 1) +
                       CT_IMAGE_DATA_REPLICATE_8U(src, x + 1, y - 1) +
                       CT_IMAGE_DATA_REPLICATE_8U(src, x + 0, y + 1) +
                       CT_IMAGE_DATA_REPLICATE_8U(src, x - 1, y + 1) +
                       CT_IMAGE_DATA_REPLICATE_8U(src, x + 1, y + 1)) )/9 ) );
     return res;
 }

 static uint8_t box3x3_calculate_constant(CT_Image src, uint32_t x_, uint32_t y_, vx_uint32 constant_value)
 {
     int32_t x = (int)x_;
     int32_t y = (int)y_;
     uint8_t res = (uint8_t)(ct_floor_u32_no_overflow( ((float)(
             (int16_t)(CT_IMAGE_DATA_CONSTANT_8U(src, x + 0, y + 0, constant_value)) +
                       CT_IMAGE_DATA_CONSTANT_8U(src, x - 1, y + 0, constant_value) +
                       CT_IMAGE_DATA_CONSTANT_8U(src, x + 1, y + 0, constant_value) +
                       CT_IMAGE_DATA_CONSTANT_8U(src, x + 0, y - 1, constant_value) +
                       CT_IMAGE_DATA_CONSTANT_8U(src, x - 1, y - 1, constant_value) +
                       CT_IMAGE_DATA_CONSTANT_8U(src, x + 1, y - 1, constant_value) +
                       CT_IMAGE_DATA_CONSTANT_8U(src, x + 0, y + 1, constant_value) +
                       CT_IMAGE_DATA_CONSTANT_8U(src, x - 1, y + 1, constant_value) +
                       CT_IMAGE_DATA_CONSTANT_8U(src, x + 1, y + 1, constant_value)) )/9 ) );
     return res;
 }


 CT_Image box3x3_create_reference_image(CT_Image src, vx_border_t border)
 {
     CT_Image dst;

     CT_ASSERT_(return NULL, src->format == VX_DF_IMAGE_U8);

     dst = ct_allocate_image(src->width, src->height, src->format);

     if (border.mode == VX_BORDER_UNDEFINED)
     {
         CT_FILL_IMAGE_8U(return 0, dst,
                 if (x >= 1 && y >= 1 && x < src->width - 1 && y < src->height - 1)
                 {
                     uint8_t res = box3x3_calculate(src, x, y);
                     *dst_data = res;
                 });
     }
     else if (border.mode == VX_BORDER_REPLICATE)
     {
         CT_FILL_IMAGE_8U(return 0, dst,
                 {
                     uint8_t res = box3x3_calculate_replicate(src, x, y);
                     *dst_data = res;
                 });
     }
     else if (border.mode == VX_BORDER_CONSTANT)
     {
         vx_uint32 constant_value = border.constant_value.U32;
         CT_FILL_IMAGE_8U(return 0, dst,
                 {
                     uint8_t res = box3x3_calculate_constant(src, x, y, constant_value);
                     *dst_data = res;
                 });
     }
     else
     {
         ASSERT_(return 0, 0);
     }
     return dst;
 }


 static void box3x3_check(CT_Image src, CT_Image dst, vx_border_t border)
 {
     CT_Image dst_ref = NULL;

     ASSERT(src && dst);

     ASSERT_NO_FAILURE(dst_ref = box3x3_create_reference_image(src, border));

     ASSERT_NO_FAILURE(
         if (border.mode == VX_BORDER_UNDEFINED)
         {
             ct_adjust_roi(dst,  1, 1, 1, 1);
             ct_adjust_roi(dst_ref, 1, 1, 1, 1);
         }
     );

     EXPECT_CTIMAGE_NEAR(dst_ref, dst, 1);
 #if 0
     if (CT_HasFailure())
     {
         printf("=== SRC ===\n");
         ct_dump_image_info(src);
         printf("=== DST ===\n");
         ct_dump_image_info(dst);
         printf("=== EXPECTED ===\n");
         ct_dump_image_info(dst_ref);
     }
 #endif
 }

 typedef struct {
     const char* testName;
     CT_Image (*generator)(const char* fileName, int width, int height);
     const char* fileName;
     vx_border_t border;
     int width, height;
 } Filter_Arg;

 #define ADD_GRADIENT_STEPS(testArgName, nextmacro, ...) \
     CT_EXPAND(nextmacro(testArgName "/step=3x3", __VA_ARGS__, 3, 3)), \
     CT_EXPAND(nextmacro(testArgName "/step=4x4", __VA_ARGS__, 4, 4)), \
     CT_EXPAND(nextmacro(testArgName "/step=3x4", __VA_ARGS__, 3, 4)), \
     CT_EXPAND(nextmacro(testArgName "/step=4x3", __VA_ARGS__, 4, 3))

 #define BOX_PARAMETERS \
     CT_GENERATE_PARAMETERS("simple_gradient", ADD_VX_BORDERS_REQUIRE_UNDEFINED_ONLY, ADD_GRADIENT_STEPS, ARG, box3x3_generate_simple_gradient, NULL), \
     CT_GENERATE_PARAMETERS("bi_level", ADD_VX_BORDERS_REQUIRE_UNDEFINED_ONLY, ADD_SIZE_SMALL_SET, ARG, box3x3_generate_bi_level, NULL), \
     CT_GENERATE_PARAMETERS("randomInput", ADD_VX_BORDERS_REQUIRE_UNDEFINED_ONLY, ADD_SIZE_SMALL_SET, ARG, box3x3_generate_random, NULL), \
     CT_GENERATE_PARAMETERS("lena", ADD_VX_BORDERS_REQUIRE_UNDEFINED_ONLY, ADD_SIZE_NONE, ARG, box3x3_read_image, "lena.bmp")

 TEST_WITH_ARG(Box3x3, testGraphProcessing, Filter_Arg,
     BOX_PARAMETERS
 )
 {
     vx_context context = context_->vx_context_;
     vx_image src_image = 0, dst_image = 0;
     vx_graph graph = 0;
     vx_node node = 0;

     CT_Image src = NULL, dst = NULL;
     vx_border_t border = arg_->border;

     ASSERT_NO_FAILURE(src = arg_->generator(arg_->fileName, arg_->width, arg_->height));

     ASSERT_VX_OBJECT(src_image = ct_image_to_vx_image(src, context), VX_TYPE_IMAGE);

     ASSERT_VX_OBJECT(dst_image = ct_create_similar_image(src_image), VX_TYPE_IMAGE);

     ASSERT_VX_OBJECT(graph = vxCreateGraph(context), VX_TYPE_GRAPH);

     ASSERT_VX_OBJECT(node = vxBox3x3Node(graph, src_image, dst_image), VX_TYPE_NODE);

     VX_CALL(vxSetNodeAttribute(node, VX_NODE_BORDER, &border, sizeof(border)));

     VX_CALL(vxVerifyGraph(graph));
     VX_CALL(vxProcessGraph(graph));

     ASSERT_NO_FAILURE(dst = ct_image_from_vx_image(dst_image));

     ASSERT_NO_FAILURE(box3x3_check(src, dst, border));

     VX_CALL(vxReleaseNode(&node));
     VX_CALL(vxReleaseGraph(&graph));

     ASSERT(node == 0);
     ASSERT(graph == 0);

     VX_CALL(vxReleaseImage(&dst_image));
     VX_CALL(vxReleaseImage(&src_image));

     ASSERT(dst_image == 0);
     ASSERT(src_image == 0);
 }

 TEST_WITH_ARG(Box3x3, testImmediateProcessing, Filter_Arg,
     BOX_PARAMETERS
 )
 {
     vx_context context = context_->vx_context_;
     vx_image src_image = 0, dst_image = 0;

     CT_Image src = NULL, dst = NULL;
     vx_border_t border = arg_->border;

     ASSERT_NO_FAILURE(src = arg_->generator(arg_->fileName, arg_->width, arg_->height));

     ASSERT_VX_OBJECT(src_image = ct_image_to_vx_image(src, context), VX_TYPE_IMAGE);

     ASSERT_VX_OBJECT(dst_image = ct_create_similar_image(src_image), VX_TYPE_IMAGE);

     VX_CALL(vxSetContextAttribute(context, VX_CONTEXT_IMMEDIATE_BORDER, &border, sizeof(border)));

     VX_CALL(vxuBox3x3(context, src_image, dst_image));

     ASSERT_NO_FAILURE(dst = ct_image_from_vx_image(dst_image));

     ASSERT_NO_FAILURE(box3x3_check(src, dst, border));

     VX_CALL(vxReleaseImage(&dst_image));
     VX_CALL(vxReleaseImage(&src_image));

     ASSERT(dst_image == 0);
     ASSERT(src_image == 0);
 }

 TESTCASE_TESTS(Box3x3, testNodeCreation, testGraphProcessing, testImmediateProcessing)
	/*

	* Copyright (c) 2012-2017 The Khronos Group Inc.
	*
	* 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.
	*/

	#include "test_engine/test.h"
	#include <VX/vx.h>
	#include <VX/vxu.h>
	#include "shared_functions.h"


	TESTCASE(Box3x3, CT_VXContext, ct_setup_vx_context, 0)


	TEST(Box3x3, testNodeCreation)
	{
	vx_context context = context_->vx_context_;
	vx_image src_image = 0, dst_image = 0;
	vx_graph graph = 0;
	vx_node node = 0;

	ASSERT_VX_OBJECT(src_image = vxCreateImage(context, 128, 128, VX_DF_IMAGE_U8), VX_TYPE_IMAGE);

	ASSERT_VX_OBJECT(dst_image = vxCreateImage(context, 128, 128, VX_DF_IMAGE_U8), VX_TYPE_IMAGE);

	ASSERT_VX_OBJECT(graph = vxCreateGraph(context), VX_TYPE_GRAPH);

	ASSERT_VX_OBJECT(node = vxBox3x3Node(graph, src_image, dst_image), VX_TYPE_NODE);

	VX_CALL(vxReleaseNode(&node));
	VX_CALL(vxReleaseGraph(&graph));
	VX_CALL(vxReleaseImage(&dst_image));
	VX_CALL(vxReleaseImage(&src_image));

	ASSERT(node == 0);
	ASSERT(graph == 0);
	ASSERT(dst_image == 0);
	ASSERT(src_image == 0);
	}


	// Generate input to cover these requirements:
	// The input data should have areas that have zero sum and maximum sum
	// and everything in between (unless the running time is too high).
	static CT_Image box3x3_generate_simple_gradient(const char* fileName, int step_x, int step_y)
	{
	CT_Image image = NULL;
	uint32_t x, y;

	ASSERT_(return 0, step_x > 0);
	ASSERT_(return 0, step_y > 0);

	ASSERT_NO_FAILURE_(return 0,
	image = ct_allocate_image(256 * step_x, 256 * step_y, VX_DF_IMAGE_U8));

	for (y = 0; y < image->height; y++)
	{
	for (x = 0; x < image->width; x++)
	{
	uint8_t* ptr = CT_IMAGE_DATA_PTR_8U(image, x, y);
	int v = (y / step_y) + (x / step_x);
	*ptr = (uint8_t)v;
	}
	}

	return image;
	}

	// Generate input to cover these requirements:
	// The input data should contain a bi-level image with every possible
	// 3x3 block of pixels taking only the minimum and the maximum intensity values.
	static CT_Image box3x3_generate_bi_level(const char* fileName, int width, int height)
	{
	CT_Image image = NULL;
	uint32_t x, y;
	uint64_t rng;
	int total = width * height;

	CT_RNG_INIT(rng, CT_RNG_NEXT(CT()->seed_));

	ASSERT_NO_FAILURE_(return 0,
	image = ct_allocate_image(width, height, VX_DF_IMAGE_U8));

	for (y = 0; y < image->height; y++)
	{
	for (x = 0; x < image->width; x++)
	{
	uint8_t* ptr = CT_IMAGE_DATA_PTR_8U(image, x, y);
	int v = CT_RNG_NEXT_INT(rng, 0, 3 * total);
	*ptr = (v < (int)(total + x + y)) ? 255 : 0;
	}
	}

	return image;
	}

	// Generate input to cover these requirements:
	// There should be a image with randomly generated pixel intensities.
	static CT_Image box3x3_generate_random(const char* fileName, int width, int height)
	{
	CT_Image image;

	ASSERT_NO_FAILURE_(return 0,
	image = ct_allocate_ct_image_random(width, height, VX_DF_IMAGE_U8, &CT()->seed_, 0, 256));

	return image;
	}

	static CT_Image box3x3_read_image(const char* fileName, int width, int height)
	{
	CT_Image image = NULL;
	ASSERT_(return 0, width == 0 && height == 0);
	image = ct_read_image(fileName, 1);
	ASSERT_(return 0, image);
	ASSERT_(return 0, image->format == VX_DF_IMAGE_U8);
	return image;
	}


	static uint8_t box3x3_calculate(CT_Image src, uint32_t x, uint32_t y)
	{
	uint8_t res = (uint8_t)(ct_floor_u32_no_overflow( ((float)(
	(int16_t)(*CT_IMAGE_DATA_PTR_8U(src, x + 0, y + 0)) +
	*CT_IMAGE_DATA_PTR_8U(src, x - 1, y + 0) +
	*CT_IMAGE_DATA_PTR_8U(src, x + 1, y + 0) +
	*CT_IMAGE_DATA_PTR_8U(src, x + 0, y - 1) +
	*CT_IMAGE_DATA_PTR_8U(src, x - 1, y - 1) +
	*CT_IMAGE_DATA_PTR_8U(src, x + 1, y - 1) +
	*CT_IMAGE_DATA_PTR_8U(src, x + 0, y + 1) +
	*CT_IMAGE_DATA_PTR_8U(src, x - 1, y + 1) +
	*CT_IMAGE_DATA_PTR_8U(src, x + 1, y + 1)) )/9 ) );
	return res;
	}

	static uint8_t box3x3_calculate_replicate(CT_Image src, uint32_t x_, uint32_t y_)
	{
	int32_t x = (int)x_;
	int32_t y = (int)y_;
	uint8_t res = (uint8_t)(ct_floor_u32_no_overflow( ((float)(
	(int16_t)(CT_IMAGE_DATA_REPLICATE_8U(src, x + 0, y + 0)) +
	CT_IMAGE_DATA_REPLICATE_8U(src, x - 1, y + 0) +
	CT_IMAGE_DATA_REPLICATE_8U(src, x + 1, y + 0) +
	CT_IMAGE_DATA_REPLICATE_8U(src, x + 0, y - 1) +
	CT_IMAGE_DATA_REPLICATE_8U(src, x - 1, y - 1) +
	CT_IMAGE_DATA_REPLICATE_8U(src, x + 1, y - 1) +
	CT_IMAGE_DATA_REPLICATE_8U(src, x + 0, y + 1) +
	CT_IMAGE_DATA_REPLICATE_8U(src, x - 1, y + 1) +
	CT_IMAGE_DATA_REPLICATE_8U(src, x + 1, y + 1)) )/9 ) );
	return res;
	}

	static uint8_t box3x3_calculate_constant(CT_Image src, uint32_t x_, uint32_t y_, vx_uint32 constant_value)
	{
	int32_t x = (int)x_;
	int32_t y = (int)y_;
	uint8_t res = (uint8_t)(ct_floor_u32_no_overflow( ((float)(
	(int16_t)(CT_IMAGE_DATA_CONSTANT_8U(src, x + 0, y + 0, constant_value)) +
	CT_IMAGE_DATA_CONSTANT_8U(src, x - 1, y + 0, constant_value) +
	CT_IMAGE_DATA_CONSTANT_8U(src, x + 1, y + 0, constant_value) +
	CT_IMAGE_DATA_CONSTANT_8U(src, x + 0, y - 1, constant_value) +
	CT_IMAGE_DATA_CONSTANT_8U(src, x - 1, y - 1, constant_value) +
	CT_IMAGE_DATA_CONSTANT_8U(src, x + 1, y - 1, constant_value) +
	CT_IMAGE_DATA_CONSTANT_8U(src, x + 0, y + 1, constant_value) +
	CT_IMAGE_DATA_CONSTANT_8U(src, x - 1, y + 1, constant_value) +
	CT_IMAGE_DATA_CONSTANT_8U(src, x + 1, y + 1, constant_value)) )/9 ) );
	return res;
	}


	CT_Image box3x3_create_reference_image(CT_Image src, vx_border_t border)
	{
	CT_Image dst;

	CT_ASSERT_(return NULL, src->format == VX_DF_IMAGE_U8);

	dst = ct_allocate_image(src->width, src->height, src->format);

	if (border.mode == VX_BORDER_UNDEFINED)
	{
	CT_FILL_IMAGE_8U(return 0, dst,
	if (x >= 1 && y >= 1 && x < src->width - 1 && y < src->height - 1)
	{
	uint8_t res = box3x3_calculate(src, x, y);
	*dst_data = res;
	});
	}
	else if (border.mode == VX_BORDER_REPLICATE)
	{
	CT_FILL_IMAGE_8U(return 0, dst,
	{
	uint8_t res = box3x3_calculate_replicate(src, x, y);
	*dst_data = res;
	});
	}
	else if (border.mode == VX_BORDER_CONSTANT)
	{
	vx_uint32 constant_value = border.constant_value.U32;
	CT_FILL_IMAGE_8U(return 0, dst,
	{
	uint8_t res = box3x3_calculate_constant(src, x, y, constant_value);
	*dst_data = res;
	});
	}
	else
	{
	ASSERT_(return 0, 0);
	}
	return dst;
	}


	static void box3x3_check(CT_Image src, CT_Image dst, vx_border_t border)
	{
	CT_Image dst_ref = NULL;

	ASSERT(src && dst);

	ASSERT_NO_FAILURE(dst_ref = box3x3_create_reference_image(src, border));

	ASSERT_NO_FAILURE(
	if (border.mode == VX_BORDER_UNDEFINED)
	{
	ct_adjust_roi(dst, 1, 1, 1, 1);
	ct_adjust_roi(dst_ref, 1, 1, 1, 1);
	}
	);

	EXPECT_CTIMAGE_NEAR(dst_ref, dst, 1);
	#if 0
	if (CT_HasFailure())
	{
	printf("=== SRC ===\n");
	ct_dump_image_info(src);
	printf("=== DST ===\n");
	ct_dump_image_info(dst);
	printf("=== EXPECTED ===\n");
	ct_dump_image_info(dst_ref);
	}
	#endif
	}

	typedef struct {
	const char* testName;
	CT_Image (generator)(const char fileName, int width, int height);
	const char* fileName;
	vx_border_t border;
	int width, height;
	} Filter_Arg;

	#define ADD_GRADIENT_STEPS(testArgName, nextmacro, ...) \
	CT_EXPAND(nextmacro(testArgName "/step=3x3", __VA_ARGS__, 3, 3)), \
	CT_EXPAND(nextmacro(testArgName "/step=4x4", __VA_ARGS__, 4, 4)), \
	CT_EXPAND(nextmacro(testArgName "/step=3x4", __VA_ARGS__, 3, 4)), \
	CT_EXPAND(nextmacro(testArgName "/step=4x3", __VA_ARGS__, 4, 3))

	#define BOX_PARAMETERS \
	CT_GENERATE_PARAMETERS("simple_gradient", ADD_VX_BORDERS_REQUIRE_UNDEFINED_ONLY, ADD_GRADIENT_STEPS, ARG, box3x3_generate_simple_gradient, NULL), \
	CT_GENERATE_PARAMETERS("bi_level", ADD_VX_BORDERS_REQUIRE_UNDEFINED_ONLY, ADD_SIZE_SMALL_SET, ARG, box3x3_generate_bi_level, NULL), \
	CT_GENERATE_PARAMETERS("randomInput", ADD_VX_BORDERS_REQUIRE_UNDEFINED_ONLY, ADD_SIZE_SMALL_SET, ARG, box3x3_generate_random, NULL), \
	CT_GENERATE_PARAMETERS("lena", ADD_VX_BORDERS_REQUIRE_UNDEFINED_ONLY, ADD_SIZE_NONE, ARG, box3x3_read_image, "lena.bmp")

	TEST_WITH_ARG(Box3x3, testGraphProcessing, Filter_Arg,
	BOX_PARAMETERS
	)
	{
	vx_context context = context_->vx_context_;
	vx_image src_image = 0, dst_image = 0;
	vx_graph graph = 0;
	vx_node node = 0;

	CT_Image src = NULL, dst = NULL;
	vx_border_t border = arg_->border;

	ASSERT_NO_FAILURE(src = arg_->generator(arg_->fileName, arg_->width, arg_->height));

	ASSERT_VX_OBJECT(src_image = ct_image_to_vx_image(src, context), VX_TYPE_IMAGE);

	ASSERT_VX_OBJECT(dst_image = ct_create_similar_image(src_image), VX_TYPE_IMAGE);

	ASSERT_VX_OBJECT(graph = vxCreateGraph(context), VX_TYPE_GRAPH);

	ASSERT_VX_OBJECT(node = vxBox3x3Node(graph, src_image, dst_image), VX_TYPE_NODE);

	VX_CALL(vxSetNodeAttribute(node, VX_NODE_BORDER, &border, sizeof(border)));

	VX_CALL(vxVerifyGraph(graph));
	VX_CALL(vxProcessGraph(graph));

	ASSERT_NO_FAILURE(dst = ct_image_from_vx_image(dst_image));

	ASSERT_NO_FAILURE(box3x3_check(src, dst, border));

	VX_CALL(vxReleaseNode(&node));
	VX_CALL(vxReleaseGraph(&graph));

	ASSERT(node == 0);
	ASSERT(graph == 0);

	VX_CALL(vxReleaseImage(&dst_image));
	VX_CALL(vxReleaseImage(&src_image));

	ASSERT(dst_image == 0);
	ASSERT(src_image == 0);
	}

	TEST_WITH_ARG(Box3x3, testImmediateProcessing, Filter_Arg,
	BOX_PARAMETERS
	)
	{
	vx_context context = context_->vx_context_;
	vx_image src_image = 0, dst_image = 0;

	CT_Image src = NULL, dst = NULL;
	vx_border_t border = arg_->border;

	ASSERT_NO_FAILURE(src = arg_->generator(arg_->fileName, arg_->width, arg_->height));

	ASSERT_VX_OBJECT(src_image = ct_image_to_vx_image(src, context), VX_TYPE_IMAGE);

	ASSERT_VX_OBJECT(dst_image = ct_create_similar_image(src_image), VX_TYPE_IMAGE);

	VX_CALL(vxSetContextAttribute(context, VX_CONTEXT_IMMEDIATE_BORDER, &border, sizeof(border)));

	VX_CALL(vxuBox3x3(context, src_image, dst_image));

	ASSERT_NO_FAILURE(dst = ct_image_from_vx_image(dst_image));

	ASSERT_NO_FAILURE(box3x3_check(src, dst, border));

	VX_CALL(vxReleaseImage(&dst_image));
	VX_CALL(vxReleaseImage(&src_image));

	ASSERT(dst_image == 0);
	ASSERT(src_image == 0);
	}

	TESTCASE_TESTS(Box3x3, testNodeCreation, testGraphProcessing, testImmediateProcessing)