#include <opengl_compositor.h>

Inheritance diagram for KIGFX::OPENGL_COMPOSITOR:

Classes
struct	OPENGL_BUFFER

Public Member Functions
	OPENGL_COMPOSITOR ()

virtual	~OPENGL_COMPOSITOR ()

virtual void	Initialize () override
	Perform primary initialization, necessary to use the object.

virtual void	Resize (unsigned int aWidth, unsigned int aHeight) override
	Clear the state of COMPOSITOR, so it has to be reinitialized again with the new dimensions.

virtual unsigned int	CreateBuffer () override
	Prepare a new buffer that may be used as a rendering target.

virtual void	SetBuffer (unsigned int aBufferHandle) override
	Set the selected buffer as the rendering target.

virtual unsigned int	GetBuffer () const override
	Return currently used buffer handle.

virtual void	ClearBuffer (const COLOR4D &aColor) override
	Clear the selected buffer (set by the SetBuffer() function).

virtual void	DrawBuffer (unsigned int aBufferHandle) override
	Draw the selected buffer to the output buffer.

virtual void	Begin () override
	Call this at the beginning of each frame.

virtual void	Present () override
	Call this to present the output buffer to the screen.

VECTOR2I	GetScreenSize () const

GLenum	GetBufferTexture (unsigned int aBufferHandle)

void	DrawBuffer (unsigned int aSourceHandle, unsigned int aDestHandle)

void	DrawBufferDifference (unsigned int aSourceHandle, unsigned int aDestHandle)
	Draw buffer with difference blending (XOR-style for gerbview).

unsigned int	CreateBuffer (VECTOR2I aDimensions)

void	SetAntialiasingMode (GAL_ANTIALIASING_MODE aMode)

GAL_ANTIALIASING_MODE	GetAntialiasingMode () const

int	GetAntialiasSupersamplingFactor () const

VECTOR2D	GetAntialiasRenderingOffset () const

Static Public Attributes
static const unsigned int	DIRECT_RENDERING = 0

Protected Types
typedef std::deque< OPENGL_BUFFER >	OPENGL_BUFFERS

Protected Member Functions
void	bindFb (unsigned int aFb)
	Binds a specific Framebuffer Object.

void	clean ()
	Perform freeing of resources.

unsigned int	usedBuffers ()
	Returns number of used buffers.

bool	initDifferenceShader ()
	Initialize the difference shader program.

void	drawFullScreenQuad ()
	Draw a fullscreen quad for compositing.

Protected Attributes
bool	m_initialized
	Initialization status flag.

unsigned int	m_curBuffer
	Currently used buffer handle.

GLuint	m_mainFbo
	Main FBO handle (storing all target textures)

GLuint	m_depthBuffer
	Depth buffer handle.

OPENGL_BUFFERS	m_buffers
	Stores information about initialized buffers.

GLuint	m_curFbo
	Store the used FBO name in case there was more than one compositor used.

GAL_ANTIALIASING_MODE	m_currentAntialiasingMode

std::unique_ptr< OPENGL_PRESENTOR >	m_antialiasing

GLuint	m_differenceShader
	Difference shader program.

GLint	m_diffSrcTexUniform
	Source texture uniform location.

GLint	m_diffDstTexUniform
	Destination texture uniform location.

bool	m_differenceShaderInitialized

unsigned int	m_width
	Width of the buffer (in pixels)

unsigned int	m_height
	Height of the buffer (in pixels)

Detailed Description

Definition at line 46 of file opengl_compositor.h.

Member Typedef Documentation

◆ OPENGL_BUFFERS

typedef std::deque<OPENGL_BUFFER> KIGFX::OPENGL_COMPOSITOR::OPENGL_BUFFERS

protected

Definition at line 137 of file opengl_compositor.h.

Constructor & Destructor Documentation

◆ OPENGL_COMPOSITOR()

OPENGL_COMPOSITOR::OPENGL_COMPOSITOR ( )

Definition at line 52 of file opengl_compositor.cpp.

References KIGFX::AA_NONE, DIRECT_RENDERING, m_antialiasing, m_curBuffer, m_curFbo, m_currentAntialiasingMode, m_depthBuffer, m_diffDstTexUniform, m_differenceShader, m_differenceShaderInitialized, m_diffSrcTexUniform, m_initialized, and m_mainFbo.

◆ ~OPENGL_COMPOSITOR()

OPENGL_COMPOSITOR::~OPENGL_COMPOSITOR ( )

virtual

Definition at line 68 of file opengl_compositor.cpp.

References clean(), and m_initialized.

Member Function Documentation

◆ Begin()

void OPENGL_COMPOSITOR::Begin ( )

overridevirtual

Call this at the beginning of each frame.

Implements KIGFX::COMPOSITOR.

Definition at line 316 of file opengl_compositor.cpp.

References m_antialiasing.

◆ bindFb()

void OPENGL_COMPOSITOR::bindFb ( unsigned int aFb )

protected

Binds a specific Framebuffer Object.

Definition at line 380 of file opengl_compositor.cpp.

References checkGlError(), DIRECT_RENDERING, m_curFbo, and m_mainFbo.

Referenced by clean(), CreateBuffer(), DrawBufferDifference(), Initialize(), and SetBuffer().

◆ clean()

void OPENGL_COMPOSITOR::clean ( )

protected

Perform freeing of resources.

Definition at line 394 of file opengl_compositor.cpp.

References bindFb(), DIRECT_RENDERING, m_buffers, m_depthBuffer, m_differenceShader, m_differenceShaderInitialized, m_initialized, and m_mainFbo.

Referenced by Resize(), SetAntialiasingMode(), and ~OPENGL_COMPOSITOR().

◆ ClearBuffer()

void OPENGL_COMPOSITOR::ClearBuffer ( const COLOR4D & aColor )

overridevirtual

Clear the selected buffer (set by the SetBuffer() function).

Implements KIGFX::COMPOSITOR.

Definition at line 297 of file opengl_compositor.cpp.

References KIGFX::COLOR4D::b, DIRECT_RENDERING, KIGFX::COLOR4D::g, m_curFbo, m_initialized, and KIGFX::COLOR4D::r.

Referenced by CreateBuffer().

◆ CreateBuffer() [1/2]

unsigned int OPENGL_COMPOSITOR::CreateBuffer ( )

overridevirtual

Prepare a new buffer that may be used as a rendering target.

Returns: is the handle of the buffer. In case of failure 0 (zero) is returned as the handle.

Implements KIGFX::COMPOSITOR.

Definition at line 167 of file opengl_compositor.cpp.

References m_antialiasing.

◆ CreateBuffer() [2/2]

unsigned int OPENGL_COMPOSITOR::CreateBuffer ( VECTOR2I aDimensions )

Definition at line 173 of file opengl_compositor.cpp.

References bindFb(), KIGFX::COLOR4D::BLACK, checkGlError(), ClearBuffer(), DIRECT_RENDERING, m_buffers, m_initialized, m_mainFbo, usedBuffers(), VECTOR2< T >::x, and VECTOR2< T >::y.

◆ DrawBuffer() [1/2]

void OPENGL_COMPOSITOR::DrawBuffer ( unsigned int aBufferHandle )

overridevirtual

Draw the selected buffer to the output buffer.

Parameters

aBufferHandle is the handle of the buffer to be drawn.

Implements KIGFX::COMPOSITOR.

Definition at line 322 of file opengl_compositor.cpp.

References m_antialiasing.

Referenced by DrawBufferDifference().

◆ DrawBuffer() [2/2]

void OPENGL_COMPOSITOR::DrawBuffer	(	unsigned int	aSourceHandle,
		unsigned int	aDestHandle )

Definition at line 328 of file opengl_compositor.cpp.

References m_buffers, m_initialized, SetBuffer(), and usedBuffers().

◆ DrawBufferDifference()

void OPENGL_COMPOSITOR::DrawBufferDifference	(	unsigned int	aSourceHandle,
		unsigned int	aDestHandle )

Draw buffer with difference blending (XOR-style for gerbview).

Computes |src - dst| for each color channel, showing differences and canceling out identical overlapping content.

Parameters

aSourceHandle	Source buffer (new layer)
aDestHandle	Destination buffer (existing content)

Definition at line 599 of file opengl_compositor.cpp.

References bindFb(), checkGlError(), DrawBuffer(), drawFullScreenQuad(), initDifferenceShader(), m_buffers, m_diffDstTexUniform, m_differenceShader, m_diffSrcTexUniform, m_initialized, m_mainFbo, SetBuffer(), traceGalXorMode, usedBuffers(), VECTOR2< T >::x, and VECTOR2< T >::y.

◆ drawFullScreenQuad()

void OPENGL_COMPOSITOR::drawFullScreenQuad ( )

protected

Draw a fullscreen quad for compositing.

Definition at line 568 of file opengl_compositor.cpp.

Referenced by DrawBufferDifference().

◆ GetAntialiasingMode()

GAL_ANTIALIASING_MODE OPENGL_COMPOSITOR::GetAntialiasingMode ( ) const

Definition at line 94 of file opengl_compositor.cpp.

References m_currentAntialiasingMode.

◆ GetAntialiasRenderingOffset()

VECTOR2D OPENGL_COMPOSITOR::GetAntialiasRenderingOffset ( ) const

Definition at line 433 of file opengl_compositor.cpp.

References KIGFX::AA_HIGHQUALITY, and m_currentAntialiasingMode.

◆ GetAntialiasSupersamplingFactor()

int OPENGL_COMPOSITOR::GetAntialiasSupersamplingFactor ( ) const

Definition at line 423 of file opengl_compositor.cpp.

References KIGFX::AA_HIGHQUALITY, and m_currentAntialiasingMode.

◆ GetBuffer()

virtual unsigned int KIGFX::OPENGL_COMPOSITOR::GetBuffer ( ) const

inlineoverridevirtual

Return currently used buffer handle.

Returns: Currently used buffer handle.

Implements KIGFX::COMPOSITOR.

Definition at line 65 of file opengl_compositor.h.

References DIRECT_RENDERING, m_curBuffer, and m_curFbo.

◆ GetBufferTexture()

GLenum OPENGL_COMPOSITOR::GetBufferTexture ( unsigned int aBufferHandle )

Definition at line 267 of file opengl_compositor.cpp.

References m_buffers, and usedBuffers().

◆ GetScreenSize()

VECTOR2I OPENGL_COMPOSITOR::GetScreenSize ( ) const

Definition at line 306 of file opengl_compositor.cpp.

References KIGFX::COMPOSITOR::m_height, and KIGFX::COMPOSITOR::m_width.

Referenced by SetBuffer().

◆ initDifferenceShader()

bool OPENGL_COMPOSITOR::initDifferenceShader ( )

protected

Initialize the difference shader program.

Returns: true if shader compiled and linked successfully

Definition at line 443 of file opengl_compositor.cpp.

References m_diffDstTexUniform, m_differenceShader, m_differenceShaderInitialized, m_diffSrcTexUniform, and traceGalXorMode.

Referenced by DrawBufferDifference().

◆ Initialize()

void OPENGL_COMPOSITOR::Initialize ( )

overridevirtual

Perform primary initialization, necessary to use the object.

Implements KIGFX::COMPOSITOR.

Definition at line 100 of file opengl_compositor.cpp.

References KIGFX::AA_FAST, KIGFX::AA_HIGHQUALITY, bindFb(), checkGlError(), DIRECT_RENDERING, m_antialiasing, m_currentAntialiasingMode, m_depthBuffer, m_initialized, m_mainFbo, VECTOR2< T >::x, and VECTOR2< T >::y.

◆ Present()

void OPENGL_COMPOSITOR::Present ( )

overridevirtual

Call this to present the output buffer to the screen.

Implements KIGFX::COMPOSITOR.

Definition at line 374 of file opengl_compositor.cpp.

References m_antialiasing.

◆ Resize()

void OPENGL_COMPOSITOR::Resize	(	unsigned int	aWidth,
		unsigned int	aHeight )

overridevirtual

Clear the state of COMPOSITOR, so it has to be reinitialized again with the new dimensions.

Parameters

aWidth	is the framebuffer width (in pixels).
aHeight	is the framebuffer height (in pixels).

Implements KIGFX::COMPOSITOR.

Definition at line 155 of file opengl_compositor.cpp.

References clean(), m_antialiasing, KIGFX::COMPOSITOR::m_height, m_initialized, and KIGFX::COMPOSITOR::m_width.

◆ SetAntialiasingMode()

void OPENGL_COMPOSITOR::SetAntialiasingMode ( GAL_ANTIALIASING_MODE aMode )

Definition at line 85 of file opengl_compositor.cpp.

References clean(), m_currentAntialiasingMode, and m_initialized.

◆ SetBuffer()

void OPENGL_COMPOSITOR::SetBuffer ( unsigned int aBufferHandle )

overridevirtual

Set the selected buffer as the rendering target.

All the following drawing functions are going to be rendered in the selected buffer.

Parameters

aBufferHandle is the handle of the buffer or 0 in case of rendering directly to the display.

Implements KIGFX::COMPOSITOR.

Definition at line 274 of file opengl_compositor.cpp.

References bindFb(), checkGlError(), DIRECT_RENDERING, GetScreenSize(), m_buffers, m_curBuffer, m_curFbo, m_initialized, m_mainFbo, and usedBuffers().

Referenced by DrawBuffer(), and DrawBufferDifference().

◆ usedBuffers()

unsigned int KIGFX::OPENGL_COMPOSITOR::usedBuffers ( )

inlineprotected

Returns number of used buffers.

Definition at line 120 of file opengl_compositor.h.

References m_buffers.

Referenced by CreateBuffer(), DrawBuffer(), DrawBufferDifference(), GetBufferTexture(), and SetBuffer().

Member Data Documentation

◆ DIRECT_RENDERING

const unsigned int KIGFX::OPENGL_COMPOSITOR::DIRECT_RENDERING = 0

static

Definition at line 86 of file opengl_compositor.h.

Referenced by KIGFX::OPENGL_GAL::BeginDrawing(), bindFb(), KIGFX::OPENGL_GAL::blitCursor(), clean(), ClearBuffer(), KIGFX::OPENGL_GAL::ClearScreen(), CreateBuffer(), KIGFX::ANTIALIASING_NONE::DrawBuffer(), GetBuffer(), Initialize(), OPENGL_COMPOSITOR(), KIGFX::ANTIALIASING_SMAA::Present(), KIGFX::ANTIALIASING_SUPERSAMPLING::Present(), and SetBuffer().

◆ m_antialiasing

std::unique_ptr<OPENGL_PRESENTOR> KIGFX::OPENGL_COMPOSITOR::m_antialiasing

protected

Definition at line 146 of file opengl_compositor.h.

Referenced by Begin(), CreateBuffer(), DrawBuffer(), Initialize(), OPENGL_COMPOSITOR(), Present(), and Resize().

◆ m_buffers

OPENGL_BUFFERS KIGFX::OPENGL_COMPOSITOR::m_buffers

protected

Stores information about initialized buffers.

Definition at line 140 of file opengl_compositor.h.

Referenced by clean(), CreateBuffer(), DrawBuffer(), DrawBufferDifference(), GetBufferTexture(), SetBuffer(), and usedBuffers().

◆ m_curBuffer

unsigned int KIGFX::OPENGL_COMPOSITOR::m_curBuffer

protected

Currently used buffer handle.

Definition at line 134 of file opengl_compositor.h.

Referenced by GetBuffer(), OPENGL_COMPOSITOR(), and SetBuffer().

◆ m_curFbo

GLuint KIGFX::OPENGL_COMPOSITOR::m_curFbo

protected

Store the used FBO name in case there was more than one compositor used.

Definition at line 143 of file opengl_compositor.h.

Referenced by bindFb(), ClearBuffer(), GetBuffer(), OPENGL_COMPOSITOR(), and SetBuffer().

◆ m_currentAntialiasingMode

GAL_ANTIALIASING_MODE KIGFX::OPENGL_COMPOSITOR::m_currentAntialiasingMode

protected

Definition at line 145 of file opengl_compositor.h.

Referenced by GetAntialiasingMode(), GetAntialiasRenderingOffset(), GetAntialiasSupersamplingFactor(), Initialize(), OPENGL_COMPOSITOR(), and SetAntialiasingMode().

◆ m_depthBuffer

GLuint KIGFX::OPENGL_COMPOSITOR::m_depthBuffer

protected

Depth buffer handle.

Definition at line 136 of file opengl_compositor.h.

Referenced by clean(), Initialize(), and OPENGL_COMPOSITOR().

◆ m_diffDstTexUniform

GLint KIGFX::OPENGL_COMPOSITOR::m_diffDstTexUniform

protected

Destination texture uniform location.

Definition at line 151 of file opengl_compositor.h.

Referenced by DrawBufferDifference(), initDifferenceShader(), and OPENGL_COMPOSITOR().

◆ m_differenceShader

GLuint KIGFX::OPENGL_COMPOSITOR::m_differenceShader

protected

Difference shader program.

Definition at line 149 of file opengl_compositor.h.

Referenced by clean(), DrawBufferDifference(), initDifferenceShader(), and OPENGL_COMPOSITOR().

◆ m_differenceShaderInitialized

bool KIGFX::OPENGL_COMPOSITOR::m_differenceShaderInitialized

protected

Definition at line 152 of file opengl_compositor.h.

Referenced by clean(), initDifferenceShader(), and OPENGL_COMPOSITOR().

◆ m_diffSrcTexUniform

GLint KIGFX::OPENGL_COMPOSITOR::m_diffSrcTexUniform

protected

Source texture uniform location.

Definition at line 150 of file opengl_compositor.h.

Referenced by DrawBufferDifference(), initDifferenceShader(), and OPENGL_COMPOSITOR().

◆ m_height

unsigned int KIGFX::COMPOSITOR::m_height

protectedinherited

Height of the buffer (in pixels)

Definition at line 113 of file compositor.h.

Referenced by COMPOSITOR(), KIGFX::CAIRO_COMPOSITOR::CreateBuffer(), KIGFX::OPENGL_COMPOSITOR::GetScreenSize(), KIGFX::CAIRO_COMPOSITOR::Resize(), and KIGFX::OPENGL_COMPOSITOR::Resize().

◆ m_initialized

bool KIGFX::OPENGL_COMPOSITOR::m_initialized

protected

Initialization status flag.

Definition at line 133 of file opengl_compositor.h.

Referenced by clean(), ClearBuffer(), CreateBuffer(), DrawBuffer(), DrawBufferDifference(), Initialize(), OPENGL_COMPOSITOR(), Resize(), SetAntialiasingMode(), SetBuffer(), and ~OPENGL_COMPOSITOR().

◆ m_mainFbo

GLuint KIGFX::OPENGL_COMPOSITOR::m_mainFbo

protected

Main FBO handle (storing all target textures)

Definition at line 135 of file opengl_compositor.h.

Referenced by bindFb(), clean(), CreateBuffer(), DrawBufferDifference(), Initialize(), OPENGL_COMPOSITOR(), and SetBuffer().

◆ m_width

unsigned int KIGFX::COMPOSITOR::m_width

protectedinherited

Width of the buffer (in pixels)

Definition at line 112 of file compositor.h.

Referenced by COMPOSITOR(), KIGFX::CAIRO_COMPOSITOR::CreateBuffer(), KIGFX::OPENGL_COMPOSITOR::GetScreenSize(), KIGFX::CAIRO_COMPOSITOR::Resize(), and KIGFX::OPENGL_COMPOSITOR::Resize().

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

Classes

Public Member Functions

Static Public Attributes

Protected Types

Protected Member Functions

Protected Attributes

Detailed Description

Member Typedef Documentation

◆ OPENGL_BUFFERS

Constructor & Destructor Documentation

◆ OPENGL_COMPOSITOR()

◆ ~OPENGL_COMPOSITOR()

Member Function Documentation

◆ Begin()

◆ bindFb()

◆ clean()

◆ ClearBuffer()

◆ CreateBuffer() [1/2]

◆ CreateBuffer() [2/2]

◆ DrawBuffer() [1/2]

◆ DrawBuffer() [2/2]

◆ DrawBufferDifference()

◆ drawFullScreenQuad()

◆ GetAntialiasingMode()

◆ GetAntialiasRenderingOffset()

◆ GetAntialiasSupersamplingFactor()

◆ GetBuffer()

◆ GetBufferTexture()

◆ GetScreenSize()

◆ initDifferenceShader()

◆ Initialize()

◆ Present()

◆ Resize()

◆ SetAntialiasingMode()

◆ SetBuffer()

◆ usedBuffers()

Member Data Documentation

◆ DIRECT_RENDERING

◆ m_antialiasing

◆ m_buffers

◆ m_curBuffer

◆ m_curFbo

◆ m_currentAntialiasingMode

◆ m_depthBuffer

◆ m_diffDstTexUniform

◆ m_differenceShader

◆ m_differenceShaderInitialized

◆ m_diffSrcTexUniform

◆ m_height

◆ m_initialized

◆ m_mainFbo

◆ m_width