[x265] [PATCH 1 of 3] Modify input buffer for check_pixel_sse_ss() in pixelharness.cpp (Testbench)

[ramya at multicorewareinc.com]

# HG changeset patch
# User Ramya Sriraman <ramya at multicorewareinc.com>
# Date 1444205526 -19800
#      Wed Oct 07 13:42:06 2015 +0530
# Node ID 0ea631d6f87d4fc056da26ff94c6ffa1120e69bd
# Parent  4f3b58b4db8d6f10ec849ad9f2ab9be3cf12649a
Modify input buffer for check_pixel_sse_ss() in pixelharness.cpp (Testbench)

diff -r 4f3b58b4db8d -r 0ea631d6f87d source/test/pixelharness.cpp
--- a/source/test/pixelharness.cpp	Wed Sep 30 11:22:16 2015 +0530
+++ b/source/test/pixelharness.cpp	Wed Oct 07 13:42:06 2015 +0530
@@ -42,6 +42,7 @@
         int_test_buff[0][i]     = rand() % SHORT_MAX;
         ushort_test_buff[0][i]  = rand() % ((1 << 16) - 1);
         uchar_test_buff[0][i]   = rand() % ((1 << 8) - 1);
+        residual_test_buff[0][i] = (rand() % (2 * RMAX + 1)) - RMAX - 1;// For sse_ss only
 
         pixel_test_buff[1][i]   = PIXEL_MIN;
         short_test_buff[1][i]   = SMIN;
@@ -50,6 +51,7 @@
         int_test_buff[1][i]     = SHORT_MIN;
         ushort_test_buff[1][i]  = PIXEL_MIN;
         uchar_test_buff[1][i]   = PIXEL_MIN;
+        residual_test_buff[1][i] = RMIN;
 
         pixel_test_buff[2][i]   = PIXEL_MAX;
         short_test_buff[2][i]   = SMAX;
@@ -58,6 +60,7 @@
         int_test_buff[2][i]     = SHORT_MAX;
         ushort_test_buff[2][i]  = ((1 << 16) - 1);
         uchar_test_buff[2][i]   = 255;
+        residual_test_buff[2][i] = RMAX;
 
         pbuf1[i] = rand() & PIXEL_MAX;
         pbuf2[i] = rand() & PIXEL_MAX;
@@ -125,8 +128,8 @@
     {
         int index1 = rand() % TEST_CASES;
         int index2 = rand() % TEST_CASES;
-        sse_ret_t vres = (sse_ret_t)checked(opt, short_test_buff[index1], stride, short_test_buff[index2] + j, stride);
-        sse_ret_t cres = ref(short_test_buff[index1], stride, short_test_buff[index2] + j, stride);
+        sse_ret_t vres = (sse_ret_t)checked(opt, residual_test_buff[index1], stride, residual_test_buff[index2] + j, stride);
+        sse_ret_t cres = ref(residual_test_buff[index1], stride, residual_test_buff[index2] + j, stride);
         if (vres != cres)
             return false;
 
diff -r 4f3b58b4db8d -r 0ea631d6f87d source/test/pixelharness.h
--- a/source/test/pixelharness.h	Wed Sep 30 11:22:16 2015 +0530
+++ b/source/test/pixelharness.h	Wed Oct 07 13:42:06 2015 +0530
@@ -41,6 +41,8 @@
     enum { TEST_CASES = 3 };
     enum { SMAX = 1 << 12 };
     enum { SMIN = -1 << 12 };
+    enum { RMAX = PIXEL_MAX - PIXEL_MIN }; //The maximum value obtained by subtracting pixel values (residual max)
+    enum { RMIN = PIXEL_MIN - PIXEL_MAX }; //The minimum value obtained by subtracting pixel values (residual min)
 
     ALIGN_VAR_32(pixel, pbuf1[BUFFSIZE]);
     pixel    pbuf2[BUFFSIZE];
@@ -65,6 +67,7 @@
     uint16_t ushort_test_buff[TEST_CASES][BUFFSIZE];
     uint8_t  uchar_test_buff[TEST_CASES][BUFFSIZE];
     double   double_test_buff[TEST_CASES][BUFFSIZE];
+    int16_t  residual_test_buff[TEST_CASES][BUFFSIZE];
 
     bool check_pixelcmp(pixelcmp_t ref, pixelcmp_t opt);
     bool check_pixel_sse(pixel_sse_t ref, pixel_sse_t opt);