test/pp_filter_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 #include "test/clear_system_state.h"
  11 #include "test/register_state_check.h"
  12 #include "third_party/googletest/src/include/gtest/gtest.h"
  13 #include "./vpx_config.h"
  14 #include "./vp8_rtcd.h"
  15 #include "vpx/vpx_integer.h"
  16 #include "vpx_mem/vpx_mem.h"
  17
  18 typedef void (*PostProcFunc)(unsigned char *src_ptr,
  19                              unsigned char *dst_ptr,
  20                              int src_pixels_per_line,
  21                              int dst_pixels_per_line,
  22                              int cols,
  23                              unsigned char *flimit,
  24                              int size);
  25
  26 namespace {
  27
  28 class VP8PostProcessingFilterTest
  29     : public ::testing::TestWithParam<PostProcFunc> {
  30  public:
  31   virtual void TearDown() {
  32     libvpx_test::ClearSystemState();
  33   }
  34 };
  35
  36 // Test routine for the VP8 post-processing function
  37 // vp8_post_proc_down_and_across_mb_row_c.
  38
  39 TEST_P(VP8PostProcessingFilterTest, FilterOutputCheck) {
  40   // Size of the underlying data block that will be filtered.
  41   const int block_width  = 16;
  42   const int block_height = 16;
  43
  44   // 5-tap filter needs 2 padding rows above and below the block in the input.
  45   const int input_width = block_width;
  46   const int input_height = block_height + 4;
  47   const int input_stride = input_width;
  48   const int input_size = input_width * input_height;
  49
  50   // Filter extends output block by 8 samples at left and right edges.
  51   const int output_width = block_width + 16;
  52   const int output_height = block_height;
  53   const int output_stride = output_width;
  54   const int output_size = output_width * output_height;
  55
  56   uint8_t *const src_image =
  57       reinterpret_cast<uint8_t*>(vpx_calloc(input_size, 1));
  58   uint8_t *const dst_image =
  59       reinterpret_cast<uint8_t*>(vpx_calloc(output_size, 1));
  60
  61   // Pointers to top-left pixel of block in the input and output images.
  62   uint8_t *const src_image_ptr = src_image + (input_stride << 1);
  63   uint8_t *const dst_image_ptr = dst_image + 8;
  64   uint8_t *const flimits =
  65       reinterpret_cast<uint8_t *>(vpx_memalign(16, block_width));
  66   (void)memset(flimits, 255, block_width);
  67
  68   // Initialize pixels in the input:
  69   //   block pixels to value 1,
  70   //   border pixels to value 10.
  71   (void)memset(src_image, 10, input_size);
  72   uint8_t *pixel_ptr = src_image_ptr;
  73   for (int i = 0; i < block_height; ++i) {
  74     for (int j = 0; j < block_width; ++j) {
  75       pixel_ptr[j] = 1;
  76     }
  77     pixel_ptr += input_stride;
  78   }
  79
  80   // Initialize pixels in the output to 99.
  81   (void)memset(dst_image, 99, output_size);
  82
  83   ASM_REGISTER_STATE_CHECK(
  84       GetParam()(src_image_ptr, dst_image_ptr, input_stride,
  85                  output_stride, block_width, flimits, 16));
  86
  87   static const uint8_t expected_data[block_height] = {
  88     4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 3, 4
  89   };
  90
  91   pixel_ptr = dst_image_ptr;
  92   for (int i = 0; i < block_height; ++i) {
  93     for (int j = 0; j < block_width; ++j) {
  94       EXPECT_EQ(expected_data[i], pixel_ptr[j])
  95           << "VP8PostProcessingFilterTest failed with invalid filter output";
  96     }
  97     pixel_ptr += output_stride;
  98   }
  99
 100   vpx_free(src_image);
 101   vpx_free(dst_image);
 102   vpx_free(flimits);
 103 };
 104
 105 INSTANTIATE_TEST_CASE_P(C, VP8PostProcessingFilterTest,
 106     ::testing::Values(vp8_post_proc_down_and_across_mb_row_c));
 107
 108 #if HAVE_SSE2
 109 INSTANTIATE_TEST_CASE_P(SSE2, VP8PostProcessingFilterTest,
 110     ::testing::Values(vp8_post_proc_down_and_across_mb_row_sse2));
 111 #endif
 112
 113 #if HAVE_MSA
 114 INSTANTIATE_TEST_CASE_P(MSA, VP8PostProcessingFilterTest,
 115     ::testing::Values(vp8_post_proc_down_and_across_mb_row_msa));
 116 #endif
 117
 118 }  // namespace