SDL_drawline.c File Reference

#include "SDL_config.h"
#include "SDL_draw.h"
#include "SDL_drawline.h"
#include "SDL_drawpoint.h"

Go to the source code of this file.

Typedefs
typedef void(*	DrawLineFunc )(SDL_Surface *dst, int x1, int y1, int x2, int y2, Uint32 color, SDL_bool draw_end)

Functions
static DrawLineFunc	SDL_CalculateDrawLineFunc (const SDL_PixelFormat *fmt)
int	SDL_DrawLine (SDL_Surface *dst, int x1, int y1, int x2, int y2, Uint32 color)
static void	SDL_DrawLine1 (SDL_Surface *dst, int x1, int y1, int x2, int y2, Uint32 color, SDL_bool draw_end)
static void	SDL_DrawLine2 (SDL_Surface *dst, int x1, int y1, int x2, int y2, Uint32 color, SDL_bool draw_end)
static void	SDL_DrawLine4 (SDL_Surface *dst, int x1, int y1, int x2, int y2, Uint32 color, SDL_bool draw_end)
int	SDL_DrawLines (SDL_Surface *dst, const SDL_Point *points, int count, Uint32 color)

Typedef Documentation

typedef void(* DrawLineFunc)(SDL_Surface *dst, int x1, int y1, int x2, int y2, Uint32 color, SDL_bool draw_end)

Definition at line 120 of file SDL_drawline.c.

Function Documentation

static DrawLineFunc SDL_CalculateDrawLineFunc ( const SDL_PixelFormat *  fmt )

static

Definition at line 125 of file SDL_drawline.c.

References SDL_PixelFormat::BitsPerPixel, SDL_PixelFormat::BytesPerPixel, NULL, SDL_DrawLine1(), SDL_DrawLine2(), and SDL_DrawLine4().

Referenced by SDL_DrawLine(), and SDL_DrawLines().

int SDL_DrawLine	(	SDL_Surface *	dst,
		int	x1,
		int	y1,
		int	x2,
		int	y2,
		Uint32	color
	)

Definition at line 142 of file SDL_drawline.c.

References SDL_Surface::clip_rect, SDL_Surface::format, SDL_CalculateDrawLineFunc(), SDL_IntersectRectAndLine(), SDL_SetError(), and SDL_TRUE.

static void SDL_DrawLine1 ( SDL_Surface *  dst, int  x1, int  y1, int  x2, int  y2, Uint32  color, SDL_bool  draw_end  )

static

Definition at line 31 of file SDL_drawline.c.

References ABS, BLINE, SDL_PixelFormat::BytesPerPixel, DLINE, DRAW_FASTSETPIXEL1, DRAW_FASTSETPIXELXY1, SDL_Surface::format, if(), SDL_Surface::pitch, SDL_Surface::pixels, SDL_memset(), and VLINE.

Referenced by SDL_CalculateDrawLineFunc().

static void SDL_DrawLine2 ( SDL_Surface *  dst, int  x1, int  y1, int  x2, int  y2, Uint32  color, SDL_bool  draw_end  )

static

Definition at line 59 of file SDL_drawline.c.

References AALINE, ABS, DLINE, DRAW_FASTSETPIXEL2, DRAW_FASTSETPIXELXY2, DRAW_SETPIXELXY2_BLEND_RGB, DRAW_SETPIXELXY_BLEND_RGB555, DRAW_SETPIXELXY_BLEND_RGB565, SDL_Surface::format, HLINE, SDL_PixelFormat::Rmask, SDL_GetRGBA(), and VLINE.

Referenced by SDL_CalculateDrawLineFunc().

static void SDL_DrawLine4 ( SDL_Surface *  dst, int  x1, int  y1, int  x2, int  y2, Uint32  color, SDL_bool  draw_end  )

static

Definition at line 89 of file SDL_drawline.c.

References AALINE, ABS, SDL_PixelFormat::Amask, DLINE, DRAW_FASTSETPIXEL4, DRAW_FASTSETPIXELXY4, DRAW_SETPIXELXY4_BLEND_RGB, DRAW_SETPIXELXY_BLEND_ARGB8888, DRAW_SETPIXELXY_BLEND_RGB888, SDL_Surface::format, HLINE, SDL_PixelFormat::Rmask, SDL_GetRGBA(), and VLINE.

Referenced by SDL_CalculateDrawLineFunc().

int SDL_DrawLines	(	SDL_Surface *	dst,
		const SDL_Point *	points,
		int	count,
		Uint32	color
	)

Definition at line 166 of file SDL_drawline.c.

References SDL_Surface::clip_rect, SDL_Surface::format, i, SDL_CalculateDrawLineFunc(), SDL_DrawPoint(), SDL_IntersectRectAndLine(), SDL_SetError(), SDL_Point::x, and SDL_Point::y.

Referenced by SW_RenderDrawLines().