opc.h File Reference

2D Bitmap graphic primitives More...

#include "rect.h"

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Data Structures
struct	OPC
	The basic unit of 2D graphical operations. More...
struct	OPCShape
	A transparent-packed 2D shape definition Codes (signed char code array): -1~-127 Skip -128: End line 0: End shape 1~MAX_DUMP: Copy MAX_DUMP~127: Fill If 'code' is not NULL, and first 'code' is 0, data is packed somehow. More...
Defines
#define	OPC_GetOrigin(opc)   ((opc)->origin)
#define	OPC_GetPitch(opc)   ((opc)->pitch)
#define	OPC_GetClip(opc)   ((opc)->clip)
#define	OPC_Init_Basic(opc, org, lineOff, cl, ct, cr, cb)
	Initialize each member from a discreet list of parameters.
#define	OPC_Init_SDL_Surface(opc, sdl)   OPC_Init_Basic( opc, (sdl)->pixels, (sdl)->pitch, (sdl)->clip_rect.x, (sdl)->clip_rect.y, (sdl)->clip_rect.x + (sdl)->clip_rect.w, (sdl)->clip_rect.y + (sdl)->clip_rect.h )
	Initialize from SDL (http://libsdl.org).

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Detailed Description

2D Bitmap graphic primitives

Author:

David Mace

Definition in file opc.h.

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Define Documentation

#define OPC_GetClip

(

opc

)

((opc)->clip)

Get clipping region for OPC

Definition at line 25 of file opc.h.

#define OPC_GetOrigin

(

opc

)

((opc)->origin)

Get origin pointer for OPC

Definition at line 23 of file opc.h.

#define OPC_GetPitch

(

opc

)

((opc)->pitch)

Get byte offset from current line to next lower line for OPC

Definition at line 24 of file opc.h.

#define OPC_Init_Basic	(	opc,
		org,
		lineOff,
		cl,
		ct,
		cr,
		cb		)

Value:

{\
    (opc)->clip.left = (cl); (opc)->clip.top = (ct); (opc)->clip.right = (cr); (opc)->clip.bottom = (cb);\
    (opc)->pitch = (lineOff);\
    (opc)->origin = (uint8*)(org) - ((opc)->pitch*(ct)) - (sizeof(PIXEL)*(cl));\
}

Initialize each member from a discreet list of parameters.

Parameters:

	opc	OPC to init, at {cl,ct}
	org	Pointer to buffer
	lineOff	Width of buffer
	cl,ct,cr,cb

Definition at line 34 of file opc.h.