#include <glimage.h>

Inheritance diagram for FIFE::GLImage:

Collaboration diagram for FIFE::GLImage:

Public Member Functions
virtual void	invalidate ()
virtual void	setSurface (SDL_Surface *surface)
virtual void	render (const Rect &rect, uint8_t alpha=255, uint8_t const *rgb=0)
virtual void	useSharedImage (const ImagePtr &shared, const Rect &region)
virtual void	forceLoadInternal ()
virtual void	copySubimage (uint32_t xoffset, uint32_t yoffset, const ImagePtr &img)

Detailed Description

Implements an Image using OpenGL.

This class contains a texture handle bound to the data given to the constructor; it draws a textured Quad to the screen.

See also:: Image

Note:: Width and height are not limited to powers of two; non-power of two images will be converted internally if they are not supported by the hardware (GLEE_ARB_texture_non_power_of_two).

Todo:: Check the correctness of the generateTexture function on big endian systems (ppc)

Definition at line 53 of file glimage.h.

Member Function Documentation

void FIFE::GLImage::copySubimage	(	uint32_t	xoffset,
		uint32_t	yoffset,
		const ImagePtr &	img
	)			`[virtual]`

Copies given image into this one with respect to given offsets

Reimplemented from FIFE::Image.

Definition at line 370 of file glimage.cpp.

void FIFE::GLImage::forceLoadInternal ( ) [virtual]

Forces to load the image into internal memory of GPU

Implements FIFE::Image.

Definition at line 345 of file glimage.cpp.

void FIFE::GLImage::invalidate ( ) [virtual]

Invalidates the Image causing it to be reset or re-loaded

Implements FIFE::Image.

Definition at line 93 of file glimage.cpp.

void FIFE::GLImage::render	(	const Rect &	rect,
		uint8_t	alpha = `255`,
		uint8_t const *	rgb = `0`
	)			`[virtual]`

Renders itself to the current render target (main screen or attached destination image) at the rectangle rect. Convenience function

Parameters:

	rect	The position and clipping where to draw this image to.
	alpha	The alpha value, with which to draw self.
	rgb	The color value of overlay if any.

Implements FIFE::Image.

Definition at line 124 of file glimage.cpp.

References FIFE::RenderBackend::addImageToArray(), FIFE::RectType< T >::bottom(), FIFE::RenderBackend::getRenderTargetSurface(), FIFE::RectType< T >::right(), FIFE::RectType< T >::x, and FIFE::RectType< T >::y.

void FIFE::GLImage::setSurface ( SDL_Surface * surface ) [virtual]

This frees the current suface and replaces it with the surface passed in the parameter (which can be NULL).

See also:: Image::reset(SDL_Surface* surface)

Parameters:

surface

the SDL_Surface to use for this image

Implements FIFE::Image.

Definition at line 97 of file glimage.cpp.

References FIFE::Image::reset().

void FIFE::GLImage::useSharedImage	(	const ImagePtr &	shared,
		const Rect &	region
	)			`[virtual]`

After this call all image data will be taken from the given image and its subregion

Implements FIFE::Image.

Definition at line 326 of file glimage.cpp.

References FIFE::SharedPtr< T >::get().

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

engine/core/video/opengl/glimage.h
engine/core/video/opengl/glimage.cpp

FIFE::GLImage Class Reference

Public Member Functions

Detailed Description

Member Function Documentation