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      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 
     13 #include "./vp9_rtcd.h"
     14 #include "./vpx_config.h"
     15 #include "./vpx_dsp_rtcd.h"
     16 #include "test/acm_random.h"
     17 #include "test/clear_system_state.h"
     18 #include "test/register_state_check.h"
     19 #include "vp9/common/vp9_blockd.h"
     20 #include "vpx_mem/vpx_mem.h"
     21 
     22 typedef void (*SubtractFunc)(int rows, int cols, int16_t *diff_ptr,
     23                              ptrdiff_t diff_stride, const uint8_t *src_ptr,
     24                              ptrdiff_t src_stride, const uint8_t *pred_ptr,
     25                              ptrdiff_t pred_stride);
     26 
     27 namespace vp9 {
     28 
     29 class VP9SubtractBlockTest : public ::testing::TestWithParam<SubtractFunc> {
     30  public:
     31   virtual void TearDown() { libvpx_test::ClearSystemState(); }
     32 };
     33 
     34 using libvpx_test::ACMRandom;
     35 
     36 TEST_P(VP9SubtractBlockTest, SimpleSubtract) {
     37   ACMRandom rnd(ACMRandom::DeterministicSeed());
     38 
     39   // FIXME(rbultje) split in its own file
     40   for (BLOCK_SIZE bsize = BLOCK_4X4; bsize < BLOCK_SIZES;
     41        bsize = static_cast<BLOCK_SIZE>(static_cast<int>(bsize) + 1)) {
     42     const int block_width = 4 * num_4x4_blocks_wide_lookup[bsize];
     43     const int block_height = 4 * num_4x4_blocks_high_lookup[bsize];
     44     int16_t *diff = reinterpret_cast<int16_t *>(
     45         vpx_memalign(16, sizeof(*diff) * block_width * block_height * 2));
     46     uint8_t *pred = reinterpret_cast<uint8_t *>(
     47         vpx_memalign(16, block_width * block_height * 2));
     48     uint8_t *src = reinterpret_cast<uint8_t *>(
     49         vpx_memalign(16, block_width * block_height * 2));
     50 
     51     for (int n = 0; n < 100; n++) {
     52       for (int r = 0; r < block_height; ++r) {
     53         for (int c = 0; c < block_width * 2; ++c) {
     54           src[r * block_width * 2 + c] = rnd.Rand8();
     55           pred[r * block_width * 2 + c] = rnd.Rand8();
     56         }
     57       }
     58 
     59       GetParam()(block_height, block_width, diff, block_width, src, block_width,
     60                  pred, block_width);
     61 
     62       for (int r = 0; r < block_height; ++r) {
     63         for (int c = 0; c < block_width; ++c) {
     64           EXPECT_EQ(diff[r * block_width + c],
     65                     (src[r * block_width + c] - pred[r * block_width + c]))
     66               << "r = " << r << ", c = " << c << ", bs = " << bsize;
     67         }
     68       }
     69 
     70       GetParam()(block_height, block_width, diff, block_width * 2, src,
     71                  block_width * 2, pred, block_width * 2);
     72 
     73       for (int r = 0; r < block_height; ++r) {
     74         for (int c = 0; c < block_width; ++c) {
     75           EXPECT_EQ(
     76               diff[r * block_width * 2 + c],
     77               (src[r * block_width * 2 + c] - pred[r * block_width * 2 + c]))
     78               << "r = " << r << ", c = " << c << ", bs = " << bsize;
     79         }
     80       }
     81     }
     82     vpx_free(diff);
     83     vpx_free(pred);
     84     vpx_free(src);
     85   }
     86 }
     87 
     88 INSTANTIATE_TEST_CASE_P(C, VP9SubtractBlockTest,
     89                         ::testing::Values(vpx_subtract_block_c));
     90 
     91 #if HAVE_SSE2
     92 INSTANTIATE_TEST_CASE_P(SSE2, VP9SubtractBlockTest,
     93                         ::testing::Values(vpx_subtract_block_sse2));
     94 #endif
     95 #if HAVE_NEON
     96 INSTANTIATE_TEST_CASE_P(NEON, VP9SubtractBlockTest,
     97                         ::testing::Values(vpx_subtract_block_neon));
     98 #endif
     99 #if HAVE_MSA
    100 INSTANTIATE_TEST_CASE_P(MSA, VP9SubtractBlockTest,
    101                         ::testing::Values(vpx_subtract_block_msa));
    102 #endif
    103 
    104 #if HAVE_MMI
    105 INSTANTIATE_TEST_CASE_P(MMI, VP9SubtractBlockTest,
    106                         ::testing::Values(vpx_subtract_block_mmi));
    107 #endif
    108 
    109 }  // namespace vp9
    110