fuchsia_test_utils::Screenshot Class Reference

#include <screenshot.h>

Public Member Functions
	Screenshot (const zx::vmo &screenshot_vmo, uint64_t width, uint64_t height, int rotation)
Pixel	GetPixelAt (uint64_t x, uint64_t y) const
std::map< Pixel, uint32_t >	Histogram () const
std::vector< std::vector< Pixel > >	screenshot () const
uint64_t	width () const
uint64_t	height () const

Static Public Attributes
static const Pixel	kBlack = Pixel(0, 0, 0, 255)
static const Pixel	kBlue = Pixel(255, 0, 0, 255)
static const Pixel	kRed = Pixel(0, 0, 255, 255)
static const Pixel	kMagenta = Pixel(255, 0, 255, 255)
static const Pixel	kGreen = Pixel(0, 255, 0, 255)

Detailed Description

Definition at line 46 of file screenshot.h.

Constructor & Destructor Documentation

Screenshot()

fuchsia_test_utils::Screenshot::Screenshot	(	const zx::vmo &	screenshot_vmo,
		uint64_t	width,
		uint64_t	height,
		int	rotation
	)

Definition at line 21 of file screenshot.cc.

    : width_(width), height_(height) {
  FML_CHECK(rotation == 0 || rotation == 90 || rotation == 270);
  if (rotation == 90 || rotation == 270) {
    std::swap(width_, height_);
  }
  // Populate |screenshot_| from |screenshot_vmo|.
  uint64_t vmo_size;
  screenshot_vmo.get_prop_content_size(&vmo_size);
  FML_CHECK(vmo_size == kBytesPerPixel * width_ * height_);
  uint8_t* vmo_host = nullptr;
  auto status = zx::vmar::root_self()->map(
      ZX_VM_PERM_READ, /*vmar_offset*/ 0, screenshot_vmo,
      /*vmo_offset*/ 0, vmo_size, reinterpret_cast<uintptr_t*>(&vmo_host));
  FML_CHECK(status == ZX_OK);
  ExtractScreenshotFromVMO(vmo_host);
  // map the pointer.
  uintptr_t address = reinterpret_cast<uintptr_t>(vmo_host);
  status = zx::vmar::root_self()->unmap(address, vmo_size);
  FML_CHECK(status == ZX_OK);
}

Member Function Documentation

GetPixelAt()

Pixel fuchsia_test_utils::Screenshot::GetPixelAt	(	uint64_t	x,
		uint64_t	y
	)		const

Definition at line 53 of file screenshot.cc.

                                                         {
  FML_CHECK(x >= 0 && x < width_ && y >= 0 && y < height_)
      << "Index out of bounds";
  return screenshot_[y][x];
}

height()

uint64_t fuchsia_test_utils::Screenshot::height ( ) const

inline

Definition at line 94 of file screenshot.h.

{ return height_; }

Histogram()

std::map< Pixel, uint32_t > fuchsia_test_utils::Screenshot::Histogram

(

)

const

Definition at line 59 of file screenshot.cc.

                                                    {
  std::map<Pixel, uint32_t> histogram;
  FML_CHECK(screenshot_.size() == height_ && screenshot_[0].size() == width_);
  for (size_t i = 0; i < height_; i++) {
    for (size_t j = 0; j < width_; j++) {
      histogram[screenshot_[i][j]]++;
    }
  }
  return histogram;
}

screenshot()

std::vector< std::vector< Pixel > > fuchsia_test_utils::Screenshot::screenshot ( ) const

inline

Definition at line 90 of file screenshot.h.

{ return screenshot_; }

width()

uint64_t fuchsia_test_utils::Screenshot::width ( ) const

inline

Definition at line 92 of file screenshot.h.

{ return width_; }

Member Data Documentation

kBlack

const Pixel fuchsia_test_utils::Screenshot::kBlack = Pixel(0, 0, 0, 255)

inlinestatic

Definition at line 49 of file screenshot.h.

kBlue

const Pixel fuchsia_test_utils::Screenshot::kBlue = Pixel(255, 0, 0, 255)

inlinestatic

Definition at line 50 of file screenshot.h.

kGreen

const Pixel fuchsia_test_utils::Screenshot::kGreen = Pixel(0, 255, 0, 255)

inlinestatic

Definition at line 53 of file screenshot.h.

kMagenta

const Pixel fuchsia_test_utils::Screenshot::kMagenta = Pixel(255, 0, 255, 255)

inlinestatic

Definition at line 52 of file screenshot.h.

kRed

const Pixel fuchsia_test_utils::Screenshot::kRed = Pixel(0, 0, 255, 255)

inlinestatic

Definition at line 51 of file screenshot.h.

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The documentation for this class was generated from the following files:

• shell/platform/fuchsia/flutter/tests/integration/utils/screenshot.h
• shell/platform/fuchsia/flutter/tests/integration/utils/screenshot.cc