OpenGL::Pipeline Class Reference

#include <pipeline.h>

Inheritance diagram for OpenGL::Pipeline:

Public Member Functions
void	activate ()
void	deactivate ()
Framebuffer *	setFramebuffer (Framebuffer *framebuffer)
virtual void	setColor (GLfloat r, GLfloat g, GLfloat b, GLfloat a)=0
void	drawTexture (const GLTexture &texture, const GLfloat *coordinates, const GLfloat *texcoords)
void	drawTexture (const GLTexture &texture, const GLfloat *coordinates)
void	drawTexture (const GLTexture &texture, GLfloat x, GLfloat y, GLfloat w, GLfloat h)
void	drawTexture (const GLTexture &texture, GLfloat x, GLfloat y, GLfloat w, GLfloat h, const Common::Rect &clip)
virtual void	setProjectionMatrix (const Math::Matrix4 &projectionMatrix)=0

Protected Member Functions
virtual void	activateInternal ()
virtual void	deactivateInternal ()
virtual void	drawTextureInternal (const GLTexture &texture, const GLfloat *coordinates, const GLfloat *texcoords)=0
bool	isActive () const

Protected Attributes
Framebuffer *	_activeFramebuffer

Detailed Description

Interface for OpenGL pipeline functionality.

This encapsulates differences in various rendering pipelines used for OpenGL, OpenGL ES 1, and OpenGL ES 2.

Member Function Documentation

activate()

void OpenGL::Pipeline::activate

(

)

Activate the pipeline.

This sets the OpenGL state to make use of drawing with the given OpenGL pipeline.

deactivate()

void OpenGL::Pipeline::deactivate

(

)

Deactivate the pipeline.

setFramebuffer()

Framebuffer* OpenGL::Pipeline::setFramebuffer

(

Framebuffer *

framebuffer

)

Set framebuffer to render to.

Client is responsible for any memory management related to framebuffer.

Parameters

framebuffer

Framebuffer to activate.

Returns

Formerly active framebuffer.

setColor()

virtual void OpenGL::Pipeline::setColor ( GLfloat  r, GLfloat  g, GLfloat  b, GLfloat  a  )

pure virtual

Set modulation color.

Parameters

r	Red component in [0,1].
g	Green component in [0,1].
b	Blue component in [0,1].
a	Alpha component in [0,1].

Implemented in OpenGL::LibRetroPipeline, OpenGL::ShaderPipeline, and OpenGL::FixedPipeline.

drawTexture()

void OpenGL::Pipeline::drawTexture ( const GLTexture &  texture, const GLfloat *  coordinates, const GLfloat *  texcoords  )

inline

Draw a texture rectangle to the currently active framebuffer.

Parameters

texture	Texture to use for drawing.
coordinates	x1, y1, x2, y2 coordinates where to draw the texture.

setProjectionMatrix()

virtual void OpenGL::Pipeline::setProjectionMatrix ( const Math::Matrix4 &  projectionMatrix )

pure virtual

Set the projection matrix.

This is intended to be only ever be used by Framebuffer subclasses.

Implemented in OpenGL::LibRetroPipeline, OpenGL::ShaderPipeline, and OpenGL::FixedPipeline.

activateInternal()

virtual void OpenGL::Pipeline::activateInternal ( )

protectedvirtual

Activate the pipeline.

This sets the OpenGL state to make use of drawing with the given OpenGL pipeline.

Reimplemented in OpenGL::ShaderPipeline, and OpenGL::FixedPipeline.

deactivateInternal()

virtual void OpenGL::Pipeline::deactivateInternal ( )

protectedvirtual

Deactivate the pipeline.

Reimplemented in OpenGL::ShaderPipeline.

---

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

• backends/graphics/opengl/pipelines/pipeline.h