#include <tamtypes.h>

Include dependency graph for draw_blending.h:

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Data Structures
struct	blend_t

Macros
#define	BLEND_COLOR_SOURCE 0

#define	BLEND_COLOR_DEST 1

#define	BLEND_COLOR_ZERO 2

#define	BLEND_ALPHA_SOURCE 0

#define	BLEND_ALPHA_DEST 1

#define	BLEND_ALPHA_FIXED 2

#define	ALPHA_CORRECT_RGBA32 0

#define	ALPHA_CORRECT_RGBA16 1

Functions
qword_t *	draw_pixel_alpha_control (qword_t *q, int enable)

qword_t *	draw_alpha_blending (qword_t q, int context, blend_t blend)

qword_t *	draw_alpha_correction (qword_t *q, int context, int alpha)

Detailed Description

Draw library blending functions

Definition in file draw_blending.h.

Data Structure Documentation

◆ blend_t

struct blend_t

Definition at line 26 of file draw_blending.h.

Data Fields
char	color1
char	color2
char	alpha
char	color3
unsigned char	fixed_alpha

Macro Definition Documentation

◆ BLEND_COLOR_SOURCE

#define BLEND_COLOR_SOURCE 0

Alpha Blending

Definition at line 14 of file draw_blending.h.

◆ BLEND_COLOR_DEST

#define BLEND_COLOR_DEST 1

Definition at line 15 of file draw_blending.h.

◆ BLEND_COLOR_ZERO

#define BLEND_COLOR_ZERO 2

Definition at line 16 of file draw_blending.h.

◆ BLEND_ALPHA_SOURCE

#define BLEND_ALPHA_SOURCE 0

Definition at line 18 of file draw_blending.h.

◆ BLEND_ALPHA_DEST

#define BLEND_ALPHA_DEST 1

Definition at line 19 of file draw_blending.h.

◆ BLEND_ALPHA_FIXED

#define BLEND_ALPHA_FIXED 2

Definition at line 20 of file draw_blending.h.

◆ ALPHA_CORRECT_RGBA32

#define ALPHA_CORRECT_RGBA32 0

Alpha Correction

Definition at line 23 of file draw_blending.h.

◆ ALPHA_CORRECT_RGBA16

#define ALPHA_CORRECT_RGBA16 1

Definition at line 24 of file draw_blending.h.

Function Documentation

◆ draw_pixel_alpha_control()

qword_t * draw_pixel_alpha_control	(	qword_t *	q,
		int	enable
	)

Alpha Blending Per-Pixel MSB Control

Definition at line 8 of file draw_environment.c.

References draw_pixel_alpha_control(), GIF_FLG_PACKED, GIF_REG_AD, and GS_REG_PABE.

Referenced by draw_pixel_alpha_control().

◆ draw_alpha_blending()

qword_t * draw_alpha_blending	(	qword_t *	q,
		int	context,
		blend_t *	blend
	)

Alpha Blending

Definition at line 20 of file draw_environment.c.

References draw_alpha_blending(), GIF_FLG_PACKED, GIF_REG_AD, and GS_REG_ALPHA.

Referenced by draw_alpha_blending().

◆ draw_alpha_correction()

qword_t * draw_alpha_correction	(	qword_t *	q,
		int	context,
		int	alpha
	)