test/vp9_subtract_test.cc

   1 /*
   2  *  Copyright (c) 2012 The WebM project authors. All Rights Reserved.
   3  *
   4  *  Use of this source code is governed by a BSD-style license
   5  *  that can be found in the LICENSE file in the root of the source
   6  *  tree. An additional intellectual property rights grant can be found
   7  *  in the file PATENTS.  All contributing project authors may
   8  *  be found in the AUTHORS file in the root of the source tree.
   9  */
  10
  11 #include "third_party/googletest/src/include/gtest/gtest.h"
  12 #include "test/acm_random.h"
  13 #include "test/clear_system_state.h"
  14 #include "test/register_state_check.h"
  15 extern "C" {
  16 #include "./vpx_config.h"
  17 #include "./vp9_rtcd.h"
  18 #include "vp9/common/vp9_blockd.h"
  19 #include "vpx_mem/vpx_mem.h"
  20 }
  21
  22 typedef void (*subtract_fn_t)(int rows, int cols,
  23                               int16_t *diff_ptr, ptrdiff_t diff_stride,
  24                               const uint8_t *src_ptr, ptrdiff_t src_stride,
  25                               const uint8_t *pred_ptr, ptrdiff_t pred_stride);
  26
  27 namespace vp9 {
  28
  29 class VP9SubtractBlockTest : public ::testing::TestWithParam<subtract_fn_t> {
  30  public:
  31   virtual void TearDown() {
  32     libvpx_test::ClearSystemState();
  33   }
  34 };
  35
  36 using libvpx_test::ACMRandom;
  37
  38 TEST_P(VP9SubtractBlockTest, SimpleSubtract) {
  39   ACMRandom rnd(ACMRandom::DeterministicSeed());
  40
  41   // FIXME(rbultje) split in its own file
  42   for (BLOCK_SIZE_TYPE bsize = BLOCK_4X4; bsize < BLOCK_SIZE_TYPES;
  43        bsize = static_cast<BLOCK_SIZE_TYPE>(static_cast<int>(bsize) + 1)) {
  44     const int block_width  = 4 << b_width_log2(bsize);
  45     const int block_height = 4 << b_height_log2(bsize);
  46     int16_t *diff = reinterpret_cast<int16_t *>(
  47         vpx_memalign(16, sizeof(*diff) * block_width * block_height * 2));
  48     uint8_t *pred = reinterpret_cast<uint8_t *>(
  49         vpx_memalign(16, block_width * block_height * 2));
  50     uint8_t *src  = reinterpret_cast<uint8_t *>(
  51         vpx_memalign(16, block_width * block_height * 2));
  52
  53     for (int n = 0; n < 100; n++) {
  54       for (int r = 0; r < block_height; ++r) {
  55         for (int c = 0; c < block_width * 2; ++c) {
  56           src[r * block_width * 2 + c] = rnd.Rand8();
  57           pred[r * block_width * 2 + c] = rnd.Rand8();
  58         }
  59       }
  60
  61       GetParam()(block_height, block_width, diff, block_width,
  62                  src, block_width, pred, block_width);
  63
  64       for (int r = 0; r < block_height; ++r) {
  65         for (int c = 0; c < block_width; ++c) {
  66           EXPECT_EQ(diff[r * block_width + c],
  67                     (src[r * block_width + c] -
  68                      pred[r * block_width + c])) << "r = " << r
  69                                                  << ", c = " << c
  70                                                  << ", bs = " << bsize;
  71         }
  72       }
  73
  74       GetParam()(block_height, block_width, diff, block_width * 2,
  75                  src, block_width * 2, pred, block_width * 2);
  76
  77       for (int r = 0; r < block_height; ++r) {
  78         for (int c = 0; c < block_width; ++c) {
  79           EXPECT_EQ(diff[r * block_width * 2 + c],
  80                     (src[r * block_width * 2 + c] -
  81                      pred[r * block_width * 2 + c])) << "r = " << r
  82                                                      << ", c = " << c
  83                                                      << ", bs = " << bsize;
  84         }
  85       }
  86     }
  87     vpx_free(diff);
  88     vpx_free(pred);
  89     vpx_free(src);
  90   }
  91 }
  92
  93 INSTANTIATE_TEST_CASE_P(C, VP9SubtractBlockTest,
  94                         ::testing::Values(vp9_subtract_block_c));
  95
  96 #if HAVE_SSE2 && CONFIG_USE_X86INC
  97 INSTANTIATE_TEST_CASE_P(SSE2, VP9SubtractBlockTest,
  98                         ::testing::Values(vp9_subtract_block_sse2));
  99 #endif
 100 }  // namespace vp9