201 lines
7.0 KiB
C++
201 lines
7.0 KiB
C++
/*
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* Copyright (c) 2014 The WebM project authors. All Rights Reserved.
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*
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* Use of this source code is governed by a BSD-style license
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* that can be found in the LICENSE file in the root of the source
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* tree. An additional intellectual property rights grant can be found
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* in the file PATENTS. All contributing project authors may
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* be found in the AUTHORS file in the root of the source tree.
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*/
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#ifndef TEST_VPX_SCALE_TEST_H_
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#define TEST_VPX_SCALE_TEST_H_
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#include "third_party/googletest/src/include/gtest/gtest.h"
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#include "./vpx_config.h"
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#include "./vpx_scale_rtcd.h"
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#include "test/acm_random.h"
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#include "test/clear_system_state.h"
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#include "test/register_state_check.h"
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#include "vpx_mem/vpx_mem.h"
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#include "vpx_scale/yv12config.h"
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using libvpx_test::ACMRandom;
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namespace libvpx_test {
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class VpxScaleBase {
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public:
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virtual ~VpxScaleBase() { libvpx_test::ClearSystemState(); }
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void ResetImage(YV12_BUFFER_CONFIG *const img, const int width,
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const int height) {
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memset(img, 0, sizeof(*img));
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ASSERT_EQ(
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0, vp8_yv12_alloc_frame_buffer(img, width, height, VP8BORDERINPIXELS));
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memset(img->buffer_alloc, kBufFiller, img->frame_size);
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}
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void ResetImages(const int width, const int height) {
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ResetImage(&img_, width, height);
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ResetImage(&ref_img_, width, height);
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ResetImage(&dst_img_, width, height);
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FillPlane(img_.y_buffer, img_.y_crop_width, img_.y_crop_height,
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img_.y_stride);
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FillPlane(img_.u_buffer, img_.uv_crop_width, img_.uv_crop_height,
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img_.uv_stride);
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FillPlane(img_.v_buffer, img_.uv_crop_width, img_.uv_crop_height,
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img_.uv_stride);
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}
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void ResetScaleImage(YV12_BUFFER_CONFIG *const img, const int width,
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const int height) {
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memset(img, 0, sizeof(*img));
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#if CONFIG_VP9_HIGHBITDEPTH
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ASSERT_EQ(0, vpx_alloc_frame_buffer(img, width, height, 1, 1, 0,
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VP9_ENC_BORDER_IN_PIXELS, 0));
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#else
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ASSERT_EQ(0, vpx_alloc_frame_buffer(img, width, height, 1, 1,
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VP9_ENC_BORDER_IN_PIXELS, 0));
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#endif
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memset(img->buffer_alloc, kBufFiller, img->frame_size);
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}
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void ResetScaleImages(const int src_width, const int src_height,
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const int dst_width, const int dst_height) {
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ResetScaleImage(&img_, src_width, src_height);
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ResetScaleImage(&ref_img_, dst_width, dst_height);
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ResetScaleImage(&dst_img_, dst_width, dst_height);
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FillPlaneExtreme(img_.y_buffer, img_.y_crop_width, img_.y_crop_height,
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img_.y_stride);
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FillPlaneExtreme(img_.u_buffer, img_.uv_crop_width, img_.uv_crop_height,
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img_.uv_stride);
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FillPlaneExtreme(img_.v_buffer, img_.uv_crop_width, img_.uv_crop_height,
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img_.uv_stride);
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}
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void DeallocImages() {
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vp8_yv12_de_alloc_frame_buffer(&img_);
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vp8_yv12_de_alloc_frame_buffer(&ref_img_);
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vp8_yv12_de_alloc_frame_buffer(&dst_img_);
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}
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void DeallocScaleImages() {
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vpx_free_frame_buffer(&img_);
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vpx_free_frame_buffer(&ref_img_);
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vpx_free_frame_buffer(&dst_img_);
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}
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protected:
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static const int kBufFiller = 123;
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static const int kBufMax = kBufFiller - 1;
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static void FillPlane(uint8_t *const buf, const int width, const int height,
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const int stride) {
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for (int y = 0; y < height; ++y) {
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for (int x = 0; x < width; ++x) {
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buf[x + (y * stride)] = (x + (width * y)) % kBufMax;
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}
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}
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}
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static void FillPlaneExtreme(uint8_t *const buf, const int width,
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const int height, const int stride) {
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ACMRandom rnd;
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for (int y = 0; y < height; ++y) {
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for (int x = 0; x < width; ++x) {
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buf[x + (y * stride)] = rnd.Rand8() % 2 ? 255 : 0;
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}
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}
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}
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static void ExtendPlane(uint8_t *buf, int crop_width, int crop_height,
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int width, int height, int stride, int padding) {
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// Copy the outermost visible pixel to a distance of at least 'padding.'
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// The buffers are allocated such that there may be excess space outside the
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// padding. As long as the minimum amount of padding is achieved it is not
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// necessary to fill this space as well.
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uint8_t *left = buf - padding;
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uint8_t *right = buf + crop_width;
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const int right_extend = padding + (width - crop_width);
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const int bottom_extend = padding + (height - crop_height);
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// Fill the border pixels from the nearest image pixel.
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for (int y = 0; y < crop_height; ++y) {
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memset(left, left[padding], padding);
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memset(right, right[-1], right_extend);
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left += stride;
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right += stride;
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}
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left = buf - padding;
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uint8_t *top = left - (stride * padding);
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// The buffer does not always extend as far as the stride.
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// Equivalent to padding + width + padding.
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const int extend_width = padding + crop_width + right_extend;
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// The first row was already extended to the left and right. Copy it up.
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for (int y = 0; y < padding; ++y) {
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memcpy(top, left, extend_width);
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top += stride;
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}
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uint8_t *bottom = left + (crop_height * stride);
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for (int y = 0; y < bottom_extend; ++y) {
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memcpy(bottom, left + (crop_height - 1) * stride, extend_width);
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bottom += stride;
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}
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}
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void ReferenceExtendBorder() {
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ExtendPlane(ref_img_.y_buffer, ref_img_.y_crop_width,
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ref_img_.y_crop_height, ref_img_.y_width, ref_img_.y_height,
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ref_img_.y_stride, ref_img_.border);
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ExtendPlane(ref_img_.u_buffer, ref_img_.uv_crop_width,
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ref_img_.uv_crop_height, ref_img_.uv_width, ref_img_.uv_height,
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ref_img_.uv_stride, ref_img_.border / 2);
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ExtendPlane(ref_img_.v_buffer, ref_img_.uv_crop_width,
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ref_img_.uv_crop_height, ref_img_.uv_width, ref_img_.uv_height,
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ref_img_.uv_stride, ref_img_.border / 2);
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}
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void ReferenceCopyFrame() {
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// Copy img_ to ref_img_ and extend frame borders. This will be used for
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// verifying extend_fn_ as well as copy_frame_fn_.
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EXPECT_EQ(ref_img_.frame_size, img_.frame_size);
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for (int y = 0; y < img_.y_crop_height; ++y) {
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for (int x = 0; x < img_.y_crop_width; ++x) {
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ref_img_.y_buffer[x + y * ref_img_.y_stride] =
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img_.y_buffer[x + y * img_.y_stride];
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}
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}
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for (int y = 0; y < img_.uv_crop_height; ++y) {
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for (int x = 0; x < img_.uv_crop_width; ++x) {
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ref_img_.u_buffer[x + y * ref_img_.uv_stride] =
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img_.u_buffer[x + y * img_.uv_stride];
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ref_img_.v_buffer[x + y * ref_img_.uv_stride] =
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img_.v_buffer[x + y * img_.uv_stride];
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}
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}
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ReferenceExtendBorder();
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}
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void CompareImages(const YV12_BUFFER_CONFIG actual) {
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EXPECT_EQ(ref_img_.frame_size, actual.frame_size);
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EXPECT_EQ(0, memcmp(ref_img_.buffer_alloc, actual.buffer_alloc,
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ref_img_.frame_size));
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}
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YV12_BUFFER_CONFIG img_;
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YV12_BUFFER_CONFIG ref_img_;
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YV12_BUFFER_CONFIG dst_img_;
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};
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} // namespace libvpx_test
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#endif // TEST_VPX_SCALE_TEST_H_
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