gglsurface Struct Reference

A surface (bitmap) that can be drawn upon using GGL. More...

#include <ggl.h>

Data Fields
int *	addr
int	width
	Word-aligned address of the surface buffer.
int	x
	Width (in pixels) of the buffer.
int	y

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Detailed Description

A surface (bitmap) that can be drawn upon using GGL.

All GGL operations are performed on surfaces. Each surface is an instance of this data structure. The LCD screen is a surface as well. Surfaces can be copied, scrolled, etc. To create a surface, the user should allocate a memory block of enough size to accomodate the desired bitmap. The size in bytes is (width*height)/2.

Definition at line 103 of file ggl.h.

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Field Documentation

int* gglsurface::addr

Definition at line 104 of file ggl.h.

int gglsurface::width

Word-aligned address of the surface buffer.

Definition at line 105 of file ggl.h.

int gglsurface::x

Width (in pixels) of the buffer.

Definition at line 106 of file ggl.h.

int gglsurface::y

Definition at line 106 of file ggl.h.

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

• ggl.h