include/sgegfx.h File Reference

Low level graphics and drawing functions. More...

Go to the source code of this file.

Data Structures
struct	SGEPIXELINFO
struct	SGEPOSITION
Defines
#define	sgeClearScreen()   SDL_FillRect(screen, NULL, 0)
	clear the whole screen to black
#define	sgeConvertToGray   sgeConvertToGrey
	a alias for sgeConvertToGrey
Functions
SGEPOSITION *	sgePositionNew (int x, int y)
	create a new SGEPOSITION
void	sgePositionDestroy (SGEPOSITION *p)
	destroy a SGEPOSITION and free resources
SGEPIXELINFO *	sgePixelInfoNew (Uint8 r, Uint8 g, Uint8 b, Uint8 a)
	create a new SGEPIXELINFO
void	sgePixelInfoDestroy (SGEPIXELINFO *i)
	destroy a SGEPIXELINFO and free resources
Uint32	sgeMakeColor (SDL_Surface *surface, int r, int g, int b, int a)
	create a new hardware dependant color
void	sgeFillRect (SDL_Surface *dest, int x, int y, int w, int h, Uint32 color)
	draw a filled rectangle
void	sgeDrawRect (SDL_Surface *dest, int x, int y, int w, int h, int linewidth, Uint32 color)
	draw the outlines of a rectangle
void	sgeDrawPixel (SDL_Surface *dest, int x, int y, Uint32 color)
	draw a pixel
SGEPIXELINFO *	sgeGetPixel (SDL_Surface *dest, int x, int y)
	get the color of a pixel
void	sgeDrawLine (SDL_Surface *dest, int x, int y, int x2, int y2, Uint32 color)
	draw a line
void	sgeDrawImage (SDL_Surface *dest, SDL_Surface *image, int x, int y)
	draw a image
void	sgeIgnoreAlpha (SDL_Surface *s)
	disable alpha blending on a SDL_Surface
void	sgeUseAlpha (SDL_Surface *s)
	enable alpha blending on a SDL_Surface
SDL_Surface *	sgeRotoZoom (SDL_Surface *source, float rotation, float zoom)
	creates a new SDL_Surface from a source which displays a rotated and zoomed copy of source
SDL_Surface *	sgeChangeSDLSurfaceAlpha (SDL_Surface *s, Uint8 alpha)
	copies a SDL_Surface and returns a new SDL_Surface with new overall alpha values
SDL_Surface *	sgeCreateSDLSurface (int width, int height, int depth, Uint32 sdlflags)
	create a new SDL_Surface into application RAM
SDL_Surface *	sgeCreateVideoSurface (int width, int height, int depth, Uint32 sdlflags)
	create a new accelerated SDL_Surface into video RAM (if possible)
SDL_Surface *	sgeConvertToGrey (SDL_Surface *src)
	return a new SDL_Surface holding a grey version of another SDL_Surface

---

Detailed Description

Low level graphics and drawing functions.

Definition in file sgegfx.h.