DummyImageGenerator Class Reference

#include "steam/engine/worker/dummy-image-generator.hpp"

Description

Definition at line 46 of file dummy-image-generator.hpp.

Static Public Attributes
static const uint	W = 320
static const uint	H = 240

Public Member Functions
	DummyImageGenerator (uint fps)
void	configure (lumiera::DisplayerInput)
DummyFrame	next ()
	generate the next frame and occupy the alternate buffer.
DummyFrame	current ()
	just re-return a pointer to the current frame without generating any new image data

Private Member Functions
void	generateFrame (DummyFrame buffer)
void	generateNoise (DummyFrame buffer)
void	generateBars (DummyFrame buffer)
	fill the RGB-Buffer with the well-known NTSC colour-bar pattern

Private Attributes
uint	fps_
bool	useRGB_
bool	beat_
uint	frame_
std::array< std::byte, WORK_SIZ >	workBuf_
	workspace for RGB calculation
std::array< std::byte, BUFF_SIZ >	outFrame_A_
	alternating output buffers
std::array< std::byte, BUFF_SIZ >	outFrame_B_

Static Private Attributes
static constexpr uint	WORK_SIZ = W * H * 3
static constexpr uint	BUFF_SIZ = W * H * 4

Constructor & Destructor Documentation

DummyImageGenerator()

DummyImageGenerator

(

uint

fps

)

Definition at line 81 of file dummy-image-generator.cpp.

Member Function Documentation

configure()

void configure

(

lumiera::DisplayerInput

displayFormat

)

Definition at line 89 of file dummy-image-generator.cpp.

References lumiera::DISPLAY_NONE, lumiera::DISPLAY_RGB, lumiera::DISPLAY_YUV, and DummyImageGenerator::useRGB_.

next()

DummyFrame next

(

)

generate the next frame and occupy the alternate buffer.

Returns

the buffer containing the new frame

Definition at line 161 of file dummy-image-generator.cpp.

References DummyImageGenerator::beat_, DummyImageGenerator::current(), DummyImageGenerator::generateFrame(), DummyImageGenerator::H, DummyImageGenerator::useRGB_, DummyImageGenerator::W, and DummyImageGenerator::workBuf_.

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current()

DummyFrame current

(

)

just re-return a pointer to the current frame without generating any new image data

Definition at line 178 of file dummy-image-generator.cpp.

References DummyImageGenerator::beat_, DummyImageGenerator::outFrame_A_, and DummyImageGenerator::outFrame_B_.

Referenced by DummyImageGenerator::next().

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generateFrame()

void generateFrame ( DummyFrame  buffer )

private

Definition at line 100 of file dummy-image-generator.cpp.

References DummyImageGenerator::fps_, DummyImageGenerator::frame_, DummyImageGenerator::generateBars(), and DummyImageGenerator::generateNoise().

Referenced by DummyImageGenerator::next().

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generateNoise()

void generateNoise ( DummyFrame  buffer )

private

Definition at line 113 of file dummy-image-generator.cpp.

References DummyImageGenerator::H, and DummyImageGenerator::W.

Referenced by DummyImageGenerator::generateFrame().

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generateBars()

void generateBars ( DummyFrame  buffer )

private

fill the RGB-Buffer with the well-known NTSC colour-bar pattern

Definition at line 126 of file dummy-image-generator.cpp.

References DummyImageGenerator::H, and DummyImageGenerator::W.

Referenced by DummyImageGenerator::generateFrame().

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Member Data Documentation

fps_

uint fps_

private

Definition at line 48 of file dummy-image-generator.hpp.

Referenced by DummyImageGenerator::generateFrame().

useRGB_

bool useRGB_

private

Definition at line 49 of file dummy-image-generator.hpp.

Referenced by DummyImageGenerator::configure(), and DummyImageGenerator::next().

W

const uint W = 320

static

Definition at line 52 of file dummy-image-generator.hpp.

Referenced by DummyImageGenerator::generateBars(), DummyImageGenerator::generateNoise(), and DummyImageGenerator::next().

H

const uint H = 240

static

Definition at line 53 of file dummy-image-generator.hpp.

Referenced by DummyImageGenerator::generateBars(), DummyImageGenerator::generateNoise(), and DummyImageGenerator::next().

WORK_SIZ

constexpr uint WORK_SIZ = W * H * 3

staticconstexprprivate

Definition at line 69 of file dummy-image-generator.hpp.

BUFF_SIZ

constexpr uint BUFF_SIZ = W * H * 4

staticconstexprprivate

Definition at line 70 of file dummy-image-generator.hpp.

beat_

bool beat_

private

Definition at line 72 of file dummy-image-generator.hpp.

Referenced by DummyImageGenerator::current(), and DummyImageGenerator::next().

frame_

uint frame_

private

Definition at line 73 of file dummy-image-generator.hpp.

Referenced by DummyImageGenerator::generateFrame().

workBuf_

std::array<std::byte,WORK_SIZ> workBuf_

private

workspace for RGB calculation

Definition at line 75 of file dummy-image-generator.hpp.

Referenced by DummyImageGenerator::next().

outFrame_A_

std::array<std::byte,BUFF_SIZ> outFrame_A_

private

alternating output buffers

Definition at line 76 of file dummy-image-generator.hpp.

Referenced by DummyImageGenerator::current().

outFrame_B_

std::array<std::byte,BUFF_SIZ> outFrame_B_

private

Definition at line 77 of file dummy-image-generator.hpp.

Referenced by DummyImageGenerator::current().

Collaboration diagram for DummyImageGenerator:

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

• dummy-image-generator.hpp
• dummy-image-generator.cpp