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 VPX_TEST_VPX_SCALE_TEST_H_ 12 #define VPX_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: ~VpxScaleBase()30 virtual ~VpxScaleBase() { libvpx_test::ClearSystemState(); } 31 ResetImage(YV12_BUFFER_CONFIG * const img,const int width,const int height)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 << "for width: " << width << " height: " << height; 38 memset(img->buffer_alloc, kBufFiller, img->frame_size); 39 } 40 ResetImages(const int width,const int height)41 void ResetImages(const int width, const int height) { 42 ResetImage(&img_, width, height); 43 ResetImage(&ref_img_, width, height); 44 ResetImage(&dst_img_, width, height); 45 46 FillPlane(img_.y_buffer, img_.y_crop_width, img_.y_crop_height, 47 img_.y_stride); 48 FillPlane(img_.u_buffer, img_.uv_crop_width, img_.uv_crop_height, 49 img_.uv_stride); 50 FillPlane(img_.v_buffer, img_.uv_crop_width, img_.uv_crop_height, 51 img_.uv_stride); 52 } 53 ResetScaleImage(YV12_BUFFER_CONFIG * const img,const int width,const int height)54 void ResetScaleImage(YV12_BUFFER_CONFIG *const img, const int width, 55 const int height) { 56 memset(img, 0, sizeof(*img)); 57 #if CONFIG_VP9_HIGHBITDEPTH 58 ASSERT_EQ(0, vpx_alloc_frame_buffer(img, width, height, 1, 1, 0, 59 VP9_ENC_BORDER_IN_PIXELS, 0)); 60 #else 61 ASSERT_EQ(0, vpx_alloc_frame_buffer(img, width, height, 1, 1, 62 VP9_ENC_BORDER_IN_PIXELS, 0)); 63 #endif 64 memset(img->buffer_alloc, kBufFiller, img->frame_size); 65 } 66 ResetScaleImages(const int src_width,const int src_height,const int dst_width,const int dst_height)67 void ResetScaleImages(const int src_width, const int src_height, 68 const int dst_width, const int dst_height) { 69 ResetScaleImage(&img_, src_width, src_height); 70 ResetScaleImage(&ref_img_, dst_width, dst_height); 71 ResetScaleImage(&dst_img_, dst_width, dst_height); 72 FillPlaneExtreme(img_.y_buffer, img_.y_crop_width, img_.y_crop_height, 73 img_.y_stride); 74 FillPlaneExtreme(img_.u_buffer, img_.uv_crop_width, img_.uv_crop_height, 75 img_.uv_stride); 76 FillPlaneExtreme(img_.v_buffer, img_.uv_crop_width, img_.uv_crop_height, 77 img_.uv_stride); 78 } 79 DeallocImages()80 void DeallocImages() { 81 vp8_yv12_de_alloc_frame_buffer(&img_); 82 vp8_yv12_de_alloc_frame_buffer(&ref_img_); 83 vp8_yv12_de_alloc_frame_buffer(&dst_img_); 84 } 85 DeallocScaleImages()86 void DeallocScaleImages() { 87 vpx_free_frame_buffer(&img_); 88 vpx_free_frame_buffer(&ref_img_); 89 vpx_free_frame_buffer(&dst_img_); 90 } 91 92 protected: 93 static const int kBufFiller = 123; 94 static const int kBufMax = kBufFiller - 1; 95 FillPlane(uint8_t * const buf,const int width,const int height,const int stride)96 static void FillPlane(uint8_t *const buf, const int width, const int height, 97 const int stride) { 98 for (int y = 0; y < height; ++y) { 99 for (int x = 0; x < width; ++x) { 100 buf[x + (y * stride)] = (x + (width * y)) % kBufMax; 101 } 102 } 103 } 104 FillPlaneExtreme(uint8_t * const buf,const int width,const int height,const int stride)105 static void FillPlaneExtreme(uint8_t *const buf, const int width, 106 const int height, const int stride) { 107 ACMRandom rnd; 108 for (int y = 0; y < height; ++y) { 109 for (int x = 0; x < width; ++x) { 110 buf[x + (y * stride)] = rnd.Rand8() % 2 ? 255 : 0; 111 } 112 } 113 } 114 ExtendPlane(uint8_t * buf,int crop_width,int crop_height,int width,int height,int stride,int padding)115 static void ExtendPlane(uint8_t *buf, int crop_width, int crop_height, 116 int width, int height, int stride, int padding) { 117 // Copy the outermost visible pixel to a distance of at least 'padding.' 118 // The buffers are allocated such that there may be excess space outside the 119 // padding. As long as the minimum amount of padding is achieved it is not 120 // necessary to fill this space as well. 121 uint8_t *left = buf - padding; 122 uint8_t *right = buf + crop_width; 123 const int right_extend = padding + (width - crop_width); 124 const int bottom_extend = padding + (height - crop_height); 125 126 // Fill the border pixels from the nearest image pixel. 127 for (int y = 0; y < crop_height; ++y) { 128 memset(left, left[padding], padding); 129 memset(right, right[-1], right_extend); 130 left += stride; 131 right += stride; 132 } 133 134 left = buf - padding; 135 uint8_t *top = left - (stride * padding); 136 // The buffer does not always extend as far as the stride. 137 // Equivalent to padding + width + padding. 138 const int extend_width = padding + crop_width + right_extend; 139 140 // The first row was already extended to the left and right. Copy it up. 141 for (int y = 0; y < padding; ++y) { 142 memcpy(top, left, extend_width); 143 top += stride; 144 } 145 146 uint8_t *bottom = left + (crop_height * stride); 147 for (int y = 0; y < bottom_extend; ++y) { 148 memcpy(bottom, left + (crop_height - 1) * stride, extend_width); 149 bottom += stride; 150 } 151 } 152 ReferenceExtendBorder()153 void ReferenceExtendBorder() { 154 ExtendPlane(ref_img_.y_buffer, ref_img_.y_crop_width, 155 ref_img_.y_crop_height, ref_img_.y_width, ref_img_.y_height, 156 ref_img_.y_stride, ref_img_.border); 157 ExtendPlane(ref_img_.u_buffer, ref_img_.uv_crop_width, 158 ref_img_.uv_crop_height, ref_img_.uv_width, ref_img_.uv_height, 159 ref_img_.uv_stride, ref_img_.border / 2); 160 ExtendPlane(ref_img_.v_buffer, ref_img_.uv_crop_width, 161 ref_img_.uv_crop_height, ref_img_.uv_width, ref_img_.uv_height, 162 ref_img_.uv_stride, ref_img_.border / 2); 163 } 164 ReferenceCopyFrame()165 void ReferenceCopyFrame() { 166 // Copy img_ to ref_img_ and extend frame borders. This will be used for 167 // verifying extend_fn_ as well as copy_frame_fn_. 168 EXPECT_EQ(ref_img_.frame_size, img_.frame_size); 169 for (int y = 0; y < img_.y_crop_height; ++y) { 170 for (int x = 0; x < img_.y_crop_width; ++x) { 171 ref_img_.y_buffer[x + y * ref_img_.y_stride] = 172 img_.y_buffer[x + y * img_.y_stride]; 173 } 174 } 175 176 for (int y = 0; y < img_.uv_crop_height; ++y) { 177 for (int x = 0; x < img_.uv_crop_width; ++x) { 178 ref_img_.u_buffer[x + y * ref_img_.uv_stride] = 179 img_.u_buffer[x + y * img_.uv_stride]; 180 ref_img_.v_buffer[x + y * ref_img_.uv_stride] = 181 img_.v_buffer[x + y * img_.uv_stride]; 182 } 183 } 184 185 ReferenceExtendBorder(); 186 } 187 CompareImages(const YV12_BUFFER_CONFIG actual)188 void CompareImages(const YV12_BUFFER_CONFIG actual) { 189 EXPECT_EQ(ref_img_.frame_size, actual.frame_size); 190 EXPECT_EQ(0, memcmp(ref_img_.buffer_alloc, actual.buffer_alloc, 191 ref_img_.frame_size)); 192 } 193 194 YV12_BUFFER_CONFIG img_; 195 YV12_BUFFER_CONFIG ref_img_; 196 YV12_BUFFER_CONFIG dst_img_; 197 }; 198 199 } // namespace libvpx_test 200 201 #endif // VPX_TEST_VPX_SCALE_TEST_H_ 202