1 /* 2 * Copyright (c) 2014 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 #ifndef TEST_VPX_SCALE_TEST_H_ 12 #define TEST_VPX_SCALE_TEST_H_ 13 14 #include "third_party/googletest/src/include/gtest/gtest.h" 15 16 #include "./vpx_config.h" 17 #include "./vpx_scale_rtcd.h" 18 #include "test/acm_random.h" 19 #include "test/clear_system_state.h" 20 #include "test/register_state_check.h" 21 #include "vpx_mem/vpx_mem.h" 22 #include "vpx_scale/yv12config.h" 23 24 using libvpx_test::ACMRandom; 25 26 namespace libvpx_test { 27 28 class VpxScaleBase { 29 public: 30 virtual ~VpxScaleBase() { libvpx_test::ClearSystemState(); } 31 32 void ResetImage(YV12_BUFFER_CONFIG *const img, const int width, 33 const int height) { 34 memset(img, 0, sizeof(*img)); 35 ASSERT_EQ( 36 0, vp8_yv12_alloc_frame_buffer(img, width, height, VP8BORDERINPIXELS)); 37 memset(img->buffer_alloc, kBufFiller, img->frame_size); 38 } 39 40 void ResetImages(const int width, const int height) { 41 ResetImage(&img_, width, height); 42 ResetImage(&ref_img_, width, height); 43 ResetImage(&dst_img_, width, height); 44 45 FillPlane(img_.y_buffer, img_.y_crop_width, img_.y_crop_height, 46 img_.y_stride); 47 FillPlane(img_.u_buffer, img_.uv_crop_width, img_.uv_crop_height, 48 img_.uv_stride); 49 FillPlane(img_.v_buffer, img_.uv_crop_width, img_.uv_crop_height, 50 img_.uv_stride); 51 } 52 53 void ResetScaleImage(YV12_BUFFER_CONFIG *const img, const int width, 54 const int height) { 55 memset(img, 0, sizeof(*img)); 56 #if CONFIG_VP9_HIGHBITDEPTH 57 ASSERT_EQ(0, vpx_alloc_frame_buffer(img, width, height, 1, 1, 0, 58 VP9_ENC_BORDER_IN_PIXELS, 0)); 59 #else 60 ASSERT_EQ(0, vpx_alloc_frame_buffer(img, width, height, 1, 1, 61 VP9_ENC_BORDER_IN_PIXELS, 0)); 62 #endif 63 memset(img->buffer_alloc, kBufFiller, img->frame_size); 64 } 65 66 void ResetScaleImages(const int src_width, const int src_height, 67 const int dst_width, const int dst_height) { 68 ResetScaleImage(&img_, src_width, src_height); 69 ResetScaleImage(&ref_img_, dst_width, dst_height); 70 ResetScaleImage(&dst_img_, dst_width, dst_height); 71 FillPlaneExtreme(img_.y_buffer, img_.y_crop_width, img_.y_crop_height, 72 img_.y_stride); 73 FillPlaneExtreme(img_.u_buffer, img_.uv_crop_width, img_.uv_crop_height, 74 img_.uv_stride); 75 FillPlaneExtreme(img_.v_buffer, img_.uv_crop_width, img_.uv_crop_height, 76 img_.uv_stride); 77 } 78 79 void DeallocImages() { 80 vp8_yv12_de_alloc_frame_buffer(&img_); 81 vp8_yv12_de_alloc_frame_buffer(&ref_img_); 82 vp8_yv12_de_alloc_frame_buffer(&dst_img_); 83 } 84 85 void DeallocScaleImages() { 86 vpx_free_frame_buffer(&img_); 87 vpx_free_frame_buffer(&ref_img_); 88 vpx_free_frame_buffer(&dst_img_); 89 } 90 91 protected: 92 static const int kBufFiller = 123; 93 static const int kBufMax = kBufFiller - 1; 94 95 static void FillPlane(uint8_t *const buf, const int width, const int height, 96 const int stride) { 97 for (int y = 0; y < height; ++y) { 98 for (int x = 0; x < width; ++x) { 99 buf[x + (y * stride)] = (x + (width * y)) % kBufMax; 100 } 101 } 102 } 103 104 static void FillPlaneExtreme(uint8_t *const buf, const int width, 105 const int height, const int stride) { 106 ACMRandom rnd; 107 for (int y = 0; y < height; ++y) { 108 for (int x = 0; x < width; ++x) { 109 buf[x + (y * stride)] = rnd.Rand8() % 2 ? 255 : 0; 110 } 111 } 112 } 113 114 static void ExtendPlane(uint8_t *buf, int crop_width, int crop_height, 115 int width, int height, int stride, int padding) { 116 // Copy the outermost visible pixel to a distance of at least 'padding.' 117 // The buffers are allocated such that there may be excess space outside the 118 // padding. As long as the minimum amount of padding is achieved it is not 119 // necessary to fill this space as well. 120 uint8_t *left = buf - padding; 121 uint8_t *right = buf + crop_width; 122 const int right_extend = padding + (width - crop_width); 123 const int bottom_extend = padding + (height - crop_height); 124 125 // Fill the border pixels from the nearest image pixel. 126 for (int y = 0; y < crop_height; ++y) { 127 memset(left, left[padding], padding); 128 memset(right, right[-1], right_extend); 129 left += stride; 130 right += stride; 131 } 132 133 left = buf - padding; 134 uint8_t *top = left - (stride * padding); 135 // The buffer does not always extend as far as the stride. 136 // Equivalent to padding + width + padding. 137 const int extend_width = padding + crop_width + right_extend; 138 139 // The first row was already extended to the left and right. Copy it up. 140 for (int y = 0; y < padding; ++y) { 141 memcpy(top, left, extend_width); 142 top += stride; 143 } 144 145 uint8_t *bottom = left + (crop_height * stride); 146 for (int y = 0; y < bottom_extend; ++y) { 147 memcpy(bottom, left + (crop_height - 1) * stride, extend_width); 148 bottom += stride; 149 } 150 } 151 152 void ReferenceExtendBorder() { 153 ExtendPlane(ref_img_.y_buffer, ref_img_.y_crop_width, 154 ref_img_.y_crop_height, ref_img_.y_width, ref_img_.y_height, 155 ref_img_.y_stride, ref_img_.border); 156 ExtendPlane(ref_img_.u_buffer, ref_img_.uv_crop_width, 157 ref_img_.uv_crop_height, ref_img_.uv_width, ref_img_.uv_height, 158 ref_img_.uv_stride, ref_img_.border / 2); 159 ExtendPlane(ref_img_.v_buffer, ref_img_.uv_crop_width, 160 ref_img_.uv_crop_height, ref_img_.uv_width, ref_img_.uv_height, 161 ref_img_.uv_stride, ref_img_.border / 2); 162 } 163 164 void ReferenceCopyFrame() { 165 // Copy img_ to ref_img_ and extend frame borders. This will be used for 166 // verifying extend_fn_ as well as copy_frame_fn_. 167 EXPECT_EQ(ref_img_.frame_size, img_.frame_size); 168 for (int y = 0; y < img_.y_crop_height; ++y) { 169 for (int x = 0; x < img_.y_crop_width; ++x) { 170 ref_img_.y_buffer[x + y * ref_img_.y_stride] = 171 img_.y_buffer[x + y * img_.y_stride]; 172 } 173 } 174 175 for (int y = 0; y < img_.uv_crop_height; ++y) { 176 for (int x = 0; x < img_.uv_crop_width; ++x) { 177 ref_img_.u_buffer[x + y * ref_img_.uv_stride] = 178 img_.u_buffer[x + y * img_.uv_stride]; 179 ref_img_.v_buffer[x + y * ref_img_.uv_stride] = 180 img_.v_buffer[x + y * img_.uv_stride]; 181 } 182 } 183 184 ReferenceExtendBorder(); 185 } 186 187 void CompareImages(const YV12_BUFFER_CONFIG actual) { 188 EXPECT_EQ(ref_img_.frame_size, actual.frame_size); 189 EXPECT_EQ(0, memcmp(ref_img_.buffer_alloc, actual.buffer_alloc, 190 ref_img_.frame_size)); 191 } 192 193 YV12_BUFFER_CONFIG img_; 194 YV12_BUFFER_CONFIG ref_img_; 195 YV12_BUFFER_CONFIG dst_img_; 196 }; 197 198 } // namespace libvpx_test 199 200 #endif // TEST_VPX_SCALE_TEST_H_ 201
