/* 

SDL_gfxPrimitives: graphics primitives for SDL

LGPL (c) A. Schiffler

*/

#ifndef _SDL_gfxPrimitives_h
#define _SDL_gfxPrimitives_h

#include <math.h>
#ifndef M_PI
#define M_PI	3.1415926535897932384626433832795
#endif

#include "SDL.h"

/* Set up for C function definitions, even when using C++ */
#ifdef __cplusplus
extern "C" {
#endif

	/* ----- Versioning */

#define SDL_GFXPRIMITIVES_MAJOR	2
#define SDL_GFXPRIMITIVES_MINOR	0
#define SDL_GFXPRIMITIVES_MICRO	21

	/* ----- W32 DLL interface */

#ifdef WIN32
#  ifdef DLL_EXPORT
#    define SDL_GFXPRIMITIVES_SCOPE __declspec(dllexport)
#  else
#    ifdef LIBSDL_GFX_DLL_IMPORT
#      define SDL_GFXPRIMITIVES_SCOPE __declspec(dllimport)
#    endif
#  endif
#endif
#ifndef SDL_GFXPRIMITIVES_SCOPE
#  define SDL_GFXPRIMITIVES_SCOPE extern
#endif

	/* ----- Prototypes */

	/* Note: all ___Color routines expect the color to be in format 0xRRGGBBAA */

	/* Pixel */

	SDL_GFXPRIMITIVES_SCOPE int pixelColor(SDL_Surface * dst, Sint16 x, Sint16 y, Uint32 color);
	SDL_GFXPRIMITIVES_SCOPE int pixelRGBA(SDL_Surface * dst, Sint16 x, Sint16 y, Uint8 r, Uint8 g, Uint8 b, Uint8 a);

	/* Horizontal line */

	SDL_GFXPRIMITIVES_SCOPE int hlineColor(SDL_Surface * dst, Sint16 x1, Sint16 x2, Sint16 y, Uint32 color);
	SDL_GFXPRIMITIVES_SCOPE int hlineRGBA(SDL_Surface * dst, Sint16 x1, Sint16 x2, Sint16 y, Uint8 r, Uint8 g, Uint8 b, Uint8 a);

	/* Vertical line */

	SDL_GFXPRIMITIVES_SCOPE int vlineColor(SDL_Surface * dst, Sint16 x, Sint16 y1, Sint16 y2, Uint32 color);
	SDL_GFXPRIMITIVES_SCOPE int vlineRGBA(SDL_Surface * dst, Sint16 x, Sint16 y1, Sint16 y2, Uint8 r, Uint8 g, Uint8 b, Uint8 a);

	/* Rectangle */

	SDL_GFXPRIMITIVES_SCOPE int rectangleColor(SDL_Surface * dst, Sint16 x1, Sint16 y1, Sint16 x2, Sint16 y2, Uint32 color);
	SDL_GFXPRIMITIVES_SCOPE int rectangleRGBA(SDL_Surface * dst, Sint16 x1, Sint16 y1,
		Sint16 x2, Sint16 y2, Uint8 r, Uint8 g, Uint8 b, Uint8 a);

	/* Filled rectangle (Box) */

	SDL_GFXPRIMITIVES_SCOPE int boxColor(SDL_Surface * dst, Sint16 x1, Sint16 y1, Sint16 x2, Sint16 y2, Uint32 color);
	SDL_GFXPRIMITIVES_SCOPE int boxRGBA(SDL_Surface * dst, Sint16 x1, Sint16 y1, Sint16 x2,
		Sint16 y2, Uint8 r, Uint8 g, Uint8 b, Uint8 a);

	/* Line */

	SDL_GFXPRIMITIVES_SCOPE int lineColor(SDL_Surface * dst, Sint16 x1, Sint16 y1, Sint16 x2, Sint16 y2, Uint32 color);
	SDL_GFXPRIMITIVES_SCOPE int lineRGBA(SDL_Surface * dst, Sint16 x1, Sint16 y1,
		Sint16 x2, Sint16 y2, Uint8 r, Uint8 g, Uint8 b, Uint8 a);

	/* AA Line */

	SDL_GFXPRIMITIVES_SCOPE int aalineColor(SDL_Surface * dst, Sint16 x1, Sint16 y1, Sint16 x2, Sint16 y2, Uint32 color);
	SDL_GFXPRIMITIVES_SCOPE int aalineRGBA(SDL_Surface * dst, Sint16 x1, Sint16 y1,
		Sint16 x2, Sint16 y2, Uint8 r, Uint8 g, Uint8 b, Uint8 a);

	/* Circle */

	SDL_GFXPRIMITIVES_SCOPE int circleColor(SDL_Surface * dst, Sint16 x, Sint16 y, Sint16 rad, Uint32 color);
	SDL_GFXPRIMITIVES_SCOPE int circleRGBA(SDL_Surface * dst, Sint16 x, Sint16 y, Sint16 rad, Uint8 r, Uint8 g, Uint8 b, Uint8 a);

	/* Arc */

	SDL_GFXPRIMITIVES_SCOPE int arcColor(SDL_Surface * dst, Sint16 x, Sint16 y, Sint16 rad, Sint16 start, Sint16 end, Uint32 color);
	SDL_GFXPRIMITIVES_SCOPE int arcRGBA(SDL_Surface * dst, Sint16 x, Sint16 y, Sint16 rad, Sint16 start, Sint16 end, 
		Uint8 r, Uint8 g, Uint8 b, Uint8 a);

	/* AA Circle */

	SDL_GFXPRIMITIVES_SCOPE int aacircleColor(SDL_Surface * dst, Sint16 x, Sint16 y, Sint16 rad, Uint32 color);
	SDL_GFXPRIMITIVES_SCOPE int aacircleRGBA(SDL_Surface * dst, Sint16 x, Sint16 y,
		Sint16 rad, Uint8 r, Uint8 g, Uint8 b, Uint8 a);

	/* Filled Circle */

	SDL_GFXPRIMITIVES_SCOPE int filledCircleColor(SDL_Surface * dst, Sint16 x, Sint16 y, Sint16 r, Uint32 color);
	SDL_GFXPRIMITIVES_SCOPE int filledCircleRGBA(SDL_Surface * dst, Sint16 x, Sint16 y,
		Sint16 rad, Uint8 r, Uint8 g, Uint8 b, Uint8 a);

	/* Ellipse */

	SDL_GFXPRIMITIVES_SCOPE int ellipseColor(SDL_Surface * dst, Sint16 x, Sint16 y, Sint16 rx, Sint16 ry, Uint32 color);
	SDL_GFXPRIMITIVES_SCOPE int ellipseRGBA(SDL_Surface * dst, Sint16 x, Sint16 y,
		Sint16 rx, Sint16 ry, Uint8 r, Uint8 g, Uint8 b, Uint8 a);

	/* AA Ellipse */

	SDL_GFXPRIMITIVES_SCOPE int aaellipseColor(SDL_Surface * dst, Sint16 x, Sint16 y, Sint16 rx, Sint16 ry, Uint32 color);
	SDL_GFXPRIMITIVES_SCOPE int aaellipseRGBA(SDL_Surface * dst, Sint16 x, Sint16 y,
		Sint16 rx, Sint16 ry, Uint8 r, Uint8 g, Uint8 b, Uint8 a);

	/* Filled Ellipse */

	SDL_GFXPRIMITIVES_SCOPE int filledEllipseColor(SDL_Surface * dst, Sint16 x, Sint16 y, Sint16 rx, Sint16 ry, Uint32 color);
	SDL_GFXPRIMITIVES_SCOPE int filledEllipseRGBA(SDL_Surface * dst, Sint16 x, Sint16 y,
		Sint16 rx, Sint16 ry, Uint8 r, Uint8 g, Uint8 b, Uint8 a);

	/* Pie */

	SDL_GFXPRIMITIVES_SCOPE int pieColor(SDL_Surface * dst, Sint16 x, Sint16 y, Sint16 rad,
		Sint16 start, Sint16 end, Uint32 color);
	SDL_GFXPRIMITIVES_SCOPE int pieRGBA(SDL_Surface * dst, Sint16 x, Sint16 y, Sint16 rad,
		Sint16 start, Sint16 end, Uint8 r, Uint8 g, Uint8 b, Uint8 a);

	/* Filled Pie */

	SDL_GFXPRIMITIVES_SCOPE int filledPieColor(SDL_Surface * dst, Sint16 x, Sint16 y, Sint16 rad,
		Sint16 start, Sint16 end, Uint32 color);
	SDL_GFXPRIMITIVES_SCOPE int filledPieRGBA(SDL_Surface * dst, Sint16 x, Sint16 y, Sint16 rad,
		Sint16 start, Sint16 end, Uint8 r, Uint8 g, Uint8 b, Uint8 a);

	/* Trigon */

	SDL_GFXPRIMITIVES_SCOPE int trigonColor(SDL_Surface * dst, Sint16 x1, Sint16 y1, Sint16 x2, Sint16 y2, Sint16 x3, Sint16 y3, Uint32 color);
	SDL_GFXPRIMITIVES_SCOPE int trigonRGBA(SDL_Surface * dst, Sint16 x1, Sint16 y1, Sint16 x2, Sint16 y2, Sint16 x3, Sint16 y3,
		Uint8 r, Uint8 g, Uint8 b, Uint8 a);

	/* AA-Trigon */

	SDL_GFXPRIMITIVES_SCOPE int aatrigonColor(SDL_Surface * dst, Sint16 x1, Sint16 y1, Sint16 x2, Sint16 y2, Sint16 x3, Sint16 y3, Uint32 color);
	SDL_GFXPRIMITIVES_SCOPE int aatrigonRGBA(SDL_Surface * dst,  Sint16 x1, Sint16 y1, Sint16 x2, Sint16 y2, Sint16 x3, Sint16 y3,
		Uint8 r, Uint8 g, Uint8 b, Uint8 a);

	/* Filled Trigon */

	SDL_GFXPRIMITIVES_SCOPE int filledTrigonColor(SDL_Surface * dst, Sint16 x1, Sint16 y1, Sint16 x2, Sint16 y2, Sint16 x3, Sint16 y3, Uint32 color);
	SDL_GFXPRIMITIVES_SCOPE int filledTrigonRGBA(SDL_Surface * dst, Sint16 x1, Sint16 y1, Sint16 x2, Sint16 y2, Sint16 x3, Sint16 y3,
		Uint8 r, Uint8 g, Uint8 b, Uint8 a);

	/* Polygon */

	SDL_GFXPRIMITIVES_SCOPE int polygonColor(SDL_Surface * dst, const Sint16 * vx, const Sint16 * vy, int n, Uint32 color);
	SDL_GFXPRIMITIVES_SCOPE int polygonRGBA(SDL_Surface * dst, const Sint16 * vx, const Sint16 * vy,
		int n, Uint8 r, Uint8 g, Uint8 b, Uint8 a);

	/* AA-Polygon */

	SDL_GFXPRIMITIVES_SCOPE int aapolygonColor(SDL_Surface * dst, const Sint16 * vx, const Sint16 * vy, int n, Uint32 color);
	SDL_GFXPRIMITIVES_SCOPE int aapolygonRGBA(SDL_Surface * dst, const Sint16 * vx, const Sint16 * vy,
		int n, Uint8 r, Uint8 g, Uint8 b, Uint8 a);

	/* Filled Polygon */

	SDL_GFXPRIMITIVES_SCOPE int filledPolygonColor(SDL_Surface * dst, const Sint16 * vx, const Sint16 * vy, int n, Uint32 color);
	SDL_GFXPRIMITIVES_SCOPE int filledPolygonRGBA(SDL_Surface * dst, const Sint16 * vx,
		const Sint16 * vy, int n, Uint8 r, Uint8 g, Uint8 b, Uint8 a);
	SDL_GFXPRIMITIVES_SCOPE int texturedPolygon(SDL_Surface * dst, const Sint16 * vx, const Sint16 * vy, int n, SDL_Surface * texture,int texture_dx,int texture_dy);

	/* (Note: These MT versions are required for multi-threaded operation.) */

	SDL_GFXPRIMITIVES_SCOPE int filledPolygonColorMT(SDL_Surface * dst, const Sint16 * vx, const Sint16 * vy, int n, Uint32 color, int **polyInts, int *polyAllocated);
	SDL_GFXPRIMITIVES_SCOPE int filledPolygonRGBAMT(SDL_Surface * dst, const Sint16 * vx,
		const Sint16 * vy, int n, Uint8 r, Uint8 g, Uint8 b, Uint8 a,
		int **polyInts, int *polyAllocated);
	SDL_GFXPRIMITIVES_SCOPE int texturedPolygonMT(SDL_Surface * dst, const Sint16 * vx, const Sint16 * vy, int n, SDL_Surface * texture,int texture_dx,int texture_dy, int **polyInts, int *polyAllocated);

	/* Bezier */

	SDL_GFXPRIMITIVES_SCOPE int bezierColor(SDL_Surface * dst, const Sint16 * vx, const Sint16 * vy, int n, int s, Uint32 color);
	SDL_GFXPRIMITIVES_SCOPE int bezierRGBA(SDL_Surface * dst, const Sint16 * vx, const Sint16 * vy,
		int n, int s, Uint8 r, Uint8 g, Uint8 b, Uint8 a);

	/* Characters/Strings */

	SDL_GFXPRIMITIVES_SCOPE void gfxPrimitivesSetFont(const void *fontdata, Uint32 cw, Uint32 ch);
	SDL_GFXPRIMITIVES_SCOPE void gfxPrimitivesSetFontRotation(Uint32 rotation);
	SDL_GFXPRIMITIVES_SCOPE int characterColor(SDL_Surface * dst, Sint16 x, Sint16 y, char c, Uint32 color);
	SDL_GFXPRIMITIVES_SCOPE int characterRGBA(SDL_Surface * dst, Sint16 x, Sint16 y, char c, Uint8 r, Uint8 g, Uint8 b, Uint8 a);
	SDL_GFXPRIMITIVES_SCOPE int stringColor(SDL_Surface * dst, Sint16 x, Sint16 y, const char *s, Uint32 color);
	SDL_GFXPRIMITIVES_SCOPE int stringRGBA(SDL_Surface * dst, Sint16 x, Sint16 y, const char *s, Uint8 r, Uint8 g, Uint8 b, Uint8 a);

	/* Ends C function definitions when using C++ */
#ifdef __cplusplus
}
#endif

#endif				/* _SDL_gfxPrimitives_h */
