rotozoom.cpp File Reference

#include "paragui.h"
#include "pgdraw.h"
#include <cstdlib>
#include <cstring>
#include <cmath>

Include dependency graph for rotozoom.cpp:

Go to the source code of this file.

Defines
#define	MAX(a, b)   (((a) > (b)) ? (a) : (b))
#define	VALUE_LIMIT   0.001
#define	VALUE_LIMIT   0.001
Typedefs
typedef tColorRGBA	tColorRGBA
typedef tColorY	tColorY
Functions
static int	zoomSurfaceRGBA (SDL_Surface *src, SDL_Surface *dst, bool smooth)
static int	zoomSurfaceY (SDL_Surface *src, SDL_Surface *dst)
static void	transformSurfaceRGBA (SDL_Surface *src, SDL_Surface *dst, int cx, int cy, int isin, int icos, bool smooth)
static void	transformSurfaceY (SDL_Surface *src, SDL_Surface *dst, int cx, int cy, int isin, int icos)
SDL_Surface *	PG_Draw::RotoScaleSurface (SDL_Surface *src, double angle, double zoom, bool smooth)
SDL_Surface *	PG_Draw::ScaleSurface (SDL_Surface *src, double zoomx, double zoomy, bool smooth)
void	PG_Draw::BlitScale (SDL_Surface *src, SDL_Surface *dst, bool smooth)

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Define Documentation

#define MAX (  a, b   )     (((a) > (b)) ? (a) : (b))

Definition at line 38 of file rotozoom.cpp. Referenced by PG_Draw::RotoScaleSurface().

#define VALUE_LIMIT   0.001

Definition at line 652 of file rotozoom.cpp.

#define VALUE_LIMIT   0.001

Definition at line 652 of file rotozoom.cpp. Referenced by PG_Draw::RotoScaleSurface(), and PG_Draw::ScaleSurface().

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Typedef Documentation

typedef struct tColorRGBA tColorRGBA

typedef struct tColorY tColorY

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Function Documentation

void PG_Draw::BlitScale (  SDL_Surface *  src, SDL_Surface *  dst, bool  smooth )

Definition at line 738 of file rotozoom.cpp. References PG_Draw::ScaleSurface().

SDL_Surface* PG_Draw::RotoScaleSurface (  SDL_Surface *  src, double  angle, double  zoom, bool  smooth )

Definition at line 492 of file rotozoom.cpp. References M_PI, MAX, transformSurfaceRGBA(), transformSurfaceY(), VALUE_LIMIT, zoomSurfaceRGBA(), and zoomSurfaceY().

SDL_Surface* PG_Draw::ScaleSurface (  SDL_Surface *  src, double  zoomx, double  zoomy, bool  smooth )

Definition at line 654 of file rotozoom.cpp. References VALUE_LIMIT, zoomSurfaceRGBA(), and zoomSurfaceY().

static void transformSurfaceRGBA (  SDL_Surface *  src, SDL_Surface *  dst, int  cx, int  cy, int  isin, int  icos, bool  smooth )  [static]

Definition at line 284 of file rotozoom.cpp. References tColorRGBA::a, tColorRGBA::b, tColorRGBA::g, and tColorRGBA::r. Referenced by PG_Draw::RotoScaleSurface().

static void transformSurfaceY (  SDL_Surface *  src, SDL_Surface *  dst, int  cx, int  cy, int  isin, int  icos )  [static]

Definition at line 443 of file rotozoom.cpp. Referenced by PG_Draw::RotoScaleSurface().

static int zoomSurfaceRGBA (  SDL_Surface *  src, SDL_Surface *  dst, bool  smooth )  [static]

Definition at line 59 of file rotozoom.cpp. References tColorRGBA::a, tColorRGBA::b, tColorRGBA::g, malloc(), and tColorRGBA::r. Referenced by PG_Draw::RotoScaleSurface(), and PG_Draw::ScaleSurface().

static int zoomSurfaceY (  SDL_Surface *  src, SDL_Surface *  dst )  [static]

Definition at line 196 of file rotozoom.cpp. References malloc(). Referenced by PG_Draw::RotoScaleSurface(), and PG_Draw::ScaleSurface().

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