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Add gradient test to intra sad.

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This commit is contained in:
Ari Koivula 2014-07-28 12:29:33 +03:00
parent 2ac030ee81
commit fa39a44fac
1 changed files with 51 additions and 1 deletions
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52
tests/intra_sad_tests.c
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@ -3,10 +3,12 @@
#include "src/image.h"
#include "src/strategyselector.h"
#include <math.h>
//////////////////////////////////////////////////////////////////////////
// MACROS
#define NUM_TESTS 1
#define NUM_TESTS 2
#define LCU_MAX_LOG_W 6
#define LCU_MIN_LOG_W 2
@ -40,6 +42,19 @@ static void init_strategies()
}
static void init_gradient(int x_px, int y_px, int width, int slope, pixel *buf)
{
for (int y = 0; y < width; ++y) {
for (int x = 0; x < width; ++x) {
int diff_x = x_px - x;
int diff_y = y_px - y;
int val = sqrt(diff_x * diff_x + diff_y * diff_y) + 0.5 + slope;
buf[y * width + x] = CLIP(0, 255, val);
}
}
}
static void setup_tests()
{
init_strategies();
@ -66,6 +81,15 @@ static void setup_tests()
memset(bufs[test][w][0], 0, size);
memset(bufs[test][w][1], 255, size);
}
test = 1;
for (int w = LCU_MIN_LOG_W; w <= LCU_MAX_LOG_W; ++w) {
unsigned width = 1 << w;
unsigned size = 1 << (w * 2);
init_gradient(3, 1, width, 1, bufs[test][w][0]);
//init_gradient(width / 2, 0, width, 1, bufs[test][w][1]);
memset(bufs[test][w][1], 128, size);
}
}
static void tear_down_tests()
@ -116,6 +140,31 @@ TEST test_black_and_white(void)
}
/**
* Test that the maximum SAD value for a given buffer size doesn't overflow.
*/
TEST test_gradient(void)
{
const int test = 1;
const int width = 1 << test_env.log_width;
pixel * buf1 = bufs[test][test_env.log_width][0];
pixel * buf2 = bufs[test][test_env.log_width][1];
unsigned result = test_calc_sad(buf1, buf2, width);
unsigned result1 = test_env.tested_func(buf1, buf2);
unsigned result2 = test_env.tested_func(buf2, buf1);
// Order of parameters must not matter.
ASSERT_EQ(result1, result2);
// Result matches trivial implementation.
ASSERT_EQ(result1, result);
PASS();
}
//////////////////////////////////////////////////////////////////////////
// TEST FIXTURES
SUITE(intra_sad_tests)
@ -148,6 +197,7 @@ SUITE(intra_sad_tests)
// Tests
RUN_TEST(test_black_and_white);
RUN_TEST(test_gradient);
}
tear_down_tests();