ref: bcd0c49af38037db29fdaa6ab30e3ed64d3b4b2f
dir: /test/vpx_scale_test.cc/
/*
* Copyright (c) 2014 The WebM project authors. All Rights Reserved.
*
* Use of this source code is governed by a BSD-style license
* that can be found in the LICENSE file in the root of the source
* tree. An additional intellectual property rights grant can be found
* in the file PATENTS. All contributing project authors may
* be found in the AUTHORS file in the root of the source tree.
*/
#include "third_party/googletest/src/include/gtest/gtest.h"
#include "./vpx_config.h"
#include "./vpx_scale_rtcd.h"
#include "test/clear_system_state.h"
#include "test/register_state_check.h"
#include "vpx_mem/vpx_mem.h"
#include "vpx_scale/yv12config.h"
namespace {
typedef void (*ExtendFrameBorderFunc)(YV12_BUFFER_CONFIG *ybf);
typedef void (*CopyFrameFunc)(const YV12_BUFFER_CONFIG *src_ybf,
YV12_BUFFER_CONFIG *dst_ybf);
class VpxScaleBase {
public:
virtual ~VpxScaleBase() { libvpx_test::ClearSystemState(); }
void ResetImage(int width, int height) {
width_ = width;
height_ = height;
memset(&img_, 0, sizeof(img_));
ASSERT_EQ(0, vp8_yv12_alloc_frame_buffer(&img_, width_, height_,
VP8BORDERINPIXELS));
memset(img_.buffer_alloc, kBufFiller, img_.frame_size);
FillPlane(img_.y_buffer, img_.y_crop_width, img_.y_crop_height,
img_.y_stride);
FillPlane(img_.u_buffer, img_.uv_crop_width, img_.uv_crop_height,
img_.uv_stride);
FillPlane(img_.v_buffer, img_.uv_crop_width, img_.uv_crop_height,
img_.uv_stride);
memset(&ref_img_, 0, sizeof(ref_img_));
ASSERT_EQ(0, vp8_yv12_alloc_frame_buffer(&ref_img_, width_, height_,
VP8BORDERINPIXELS));
memset(ref_img_.buffer_alloc, kBufFiller, ref_img_.frame_size);
memset(&cpy_img_, 0, sizeof(cpy_img_));
ASSERT_EQ(0, vp8_yv12_alloc_frame_buffer(&cpy_img_, width_, height_,
VP8BORDERINPIXELS));
memset(cpy_img_.buffer_alloc, kBufFiller, cpy_img_.frame_size);
ReferenceCopyFrame();
}
void DeallocImage() {
vp8_yv12_de_alloc_frame_buffer(&img_);
vp8_yv12_de_alloc_frame_buffer(&ref_img_);
vp8_yv12_de_alloc_frame_buffer(&cpy_img_);
}
protected:
static const int kBufFiller = 123;
static const int kBufMax = kBufFiller - 1;
static void FillPlane(uint8_t *buf, int width, int height, int stride) {
for (int y = 0; y < height; ++y) {
for (int x = 0; x < width; ++x) {
buf[x + (y * stride)] = (x + (width * y)) % kBufMax;
}
}
}
static void ExtendPlane(uint8_t *buf, int crop_width, int crop_height,
int width, int height, int stride, int padding) {
// Copy the outermost visible pixel to a distance of at least 'padding.'
// The buffers are allocated such that there may be excess space outside the
// padding. As long as the minimum amount of padding is achieved it is not
// necessary to fill this space as well.
uint8_t *left = buf - padding;
uint8_t *right = buf + crop_width;
const int right_extend = padding + (width - crop_width);
const int bottom_extend = padding + (height - crop_height);
// Fill the border pixels from the nearest image pixel.
for (int y = 0; y < crop_height; ++y) {
memset(left, left[padding], padding);
memset(right, right[-1], right_extend);
left += stride;
right += stride;
}
left = buf - padding;
uint8_t *top = left - (stride * padding);
// The buffer does not always extend as far as the stride.
// Equivalent to padding + width + padding.
const int extend_width = padding + crop_width + right_extend;
// The first row was already extended to the left and right. Copy it up.
for (int y = 0; y < padding; ++y) {
memcpy(top, left, extend_width);
top += stride;
}
uint8_t *bottom = left + (crop_height * stride);
for (int y = 0; y < bottom_extend; ++y) {
memcpy(bottom, left + (crop_height - 1) * stride, extend_width);
bottom += stride;
}
}
void ReferenceExtendBorder() {
ExtendPlane(ref_img_.y_buffer, ref_img_.y_crop_width,
ref_img_.y_crop_height, ref_img_.y_width, ref_img_.y_height,
ref_img_.y_stride, ref_img_.border);
ExtendPlane(ref_img_.u_buffer, ref_img_.uv_crop_width,
ref_img_.uv_crop_height, ref_img_.uv_width, ref_img_.uv_height,
ref_img_.uv_stride, ref_img_.border / 2);
ExtendPlane(ref_img_.v_buffer, ref_img_.uv_crop_width,
ref_img_.uv_crop_height, ref_img_.uv_width, ref_img_.uv_height,
ref_img_.uv_stride, ref_img_.border / 2);
}
void ReferenceCopyFrame() {
// Copy img_ to ref_img_ and extend frame borders. This will be used for
// verifying extend_fn_ as well as copy_frame_fn_.
EXPECT_EQ(ref_img_.frame_size, img_.frame_size);
for (int y = 0; y < img_.y_crop_height; ++y) {
for (int x = 0; x < img_.y_crop_width; ++x) {
ref_img_.y_buffer[x + y * ref_img_.y_stride] =
img_.y_buffer[x + y * img_.y_stride];
}
}
for (int y = 0; y < img_.uv_crop_height; ++y) {
for (int x = 0; x < img_.uv_crop_width; ++x) {
ref_img_.u_buffer[x + y * ref_img_.uv_stride] =
img_.u_buffer[x + y * img_.uv_stride];
ref_img_.v_buffer[x + y * ref_img_.uv_stride] =
img_.v_buffer[x + y * img_.uv_stride];
}
}
ReferenceExtendBorder();
}
void CompareImages(const YV12_BUFFER_CONFIG actual) {
EXPECT_EQ(ref_img_.frame_size, actual.frame_size);
EXPECT_EQ(0, memcmp(ref_img_.buffer_alloc, actual.buffer_alloc,
ref_img_.frame_size));
}
YV12_BUFFER_CONFIG img_;
YV12_BUFFER_CONFIG ref_img_;
YV12_BUFFER_CONFIG cpy_img_;
int width_;
int height_;
};
class ExtendBorderTest
: public VpxScaleBase,
public ::testing::TestWithParam<ExtendFrameBorderFunc> {
public:
virtual ~ExtendBorderTest() {}
protected:
virtual void SetUp() { extend_fn_ = GetParam(); }
void ExtendBorder() { ASM_REGISTER_STATE_CHECK(extend_fn_(&img_)); }
void RunTest() {
#if ARCH_ARM
// Some arm devices OOM when trying to allocate the largest buffers.
static const int kNumSizesToTest = 6;
#else
static const int kNumSizesToTest = 7;
#endif
static const int kSizesToTest[] = { 1, 15, 33, 145, 512, 1025, 16383 };
for (int h = 0; h < kNumSizesToTest; ++h) {
for (int w = 0; w < kNumSizesToTest; ++w) {
ResetImage(kSizesToTest[w], kSizesToTest[h]);
ExtendBorder();
ReferenceExtendBorder();
CompareImages(img_);
DeallocImage();
}
}
}
ExtendFrameBorderFunc extend_fn_;
};
TEST_P(ExtendBorderTest, ExtendBorder) { ASSERT_NO_FATAL_FAILURE(RunTest()); }
INSTANTIATE_TEST_CASE_P(C, ExtendBorderTest,
::testing::Values(vp8_yv12_extend_frame_borders_c));
class CopyFrameTest : public VpxScaleBase,
public ::testing::TestWithParam<CopyFrameFunc> {
public:
virtual ~CopyFrameTest() {}
protected:
virtual void SetUp() { copy_frame_fn_ = GetParam(); }
void CopyFrame() {
ASM_REGISTER_STATE_CHECK(copy_frame_fn_(&img_, &cpy_img_));
}
void RunTest() {
#if ARCH_ARM
// Some arm devices OOM when trying to allocate the largest buffers.
static const int kNumSizesToTest = 6;
#else
static const int kNumSizesToTest = 7;
#endif
static const int kSizesToTest[] = { 1, 15, 33, 145, 512, 1025, 16383 };
for (int h = 0; h < kNumSizesToTest; ++h) {
for (int w = 0; w < kNumSizesToTest; ++w) {
ResetImage(kSizesToTest[w], kSizesToTest[h]);
ReferenceCopyFrame();
CopyFrame();
CompareImages(cpy_img_);
DeallocImage();
}
}
}
CopyFrameFunc copy_frame_fn_;
};
TEST_P(CopyFrameTest, CopyFrame) { ASSERT_NO_FATAL_FAILURE(RunTest()); }
INSTANTIATE_TEST_CASE_P(C, CopyFrameTest,
::testing::Values(vp8_yv12_copy_frame_c));
} // namespace