draw_tests.h File Reference

#include <tamtypes.h>
#include <draw_buffers.h>

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Data Structures
struct	atest_t
struct	dtest_t
struct	ztest_t

Macros
#define	ATEST_METHOD_ALLFAIL   0
#define	ATEST_METHOD_ALLPASS   1
#define	ATEST_METHOD_LESS   2
#define	ATEST_METHOD_LESS_EQUAL   3
#define	ATEST_METHOD_EQUAL   4
#define	ATEST_METHOD_GREATER_EQUAL   5
#define	ATEST_METHOD_GREATER   6
#define	ATEST_METHOD_NOTEQUAL   7
#define	ATEST_KEEP_ALL   0
#define	ATEST_KEEP_ZBUFFER   1
#define	ATEST_KEEP_FRAMEBUFFER   2
#define	ATEST_KEEP_ALPHA   3
#define	DTEST_METHOD_PASS_ZERO   0
#define	DTEST_METHOD_PASS_ONE   1
#define	ZTEST_METHOD_ALLFAIL   0
#define	ZTEST_METHOD_ALLPASS   1
#define	ZTEST_METHOD_GREATER_EQUAL   2
#define	ZTEST_METHOD_GREATER   3

Functions
qword_t *	draw_scissor_area (qword_t *q, int context, int x0, int x1, int y0, int y1)
qword_t *	draw_pixel_test (qword_t *q, int context, atest_t *atest, dtest_t *dtest, ztest_t *ztest)
qword_t *	draw_disable_tests (qword_t *q, int context, zbuffer_t *z)
qword_t *	draw_enable_tests (qword_t *q, int context, zbuffer_t *z)

Detailed Description

Draw library testing functions

Definition in file draw_tests.h.

Macro Definition Documentation

ATEST_KEEP_ALL

#define ATEST_KEEP_ALL   0

Definition at line 22 of file draw_tests.h.

ATEST_KEEP_ALPHA

#define ATEST_KEEP_ALPHA   3

Definition at line 25 of file draw_tests.h.

ATEST_KEEP_FRAMEBUFFER

#define ATEST_KEEP_FRAMEBUFFER   2

Definition at line 24 of file draw_tests.h.

ATEST_KEEP_ZBUFFER

#define ATEST_KEEP_ZBUFFER   1

Definition at line 23 of file draw_tests.h.

ATEST_METHOD_ALLFAIL

#define ATEST_METHOD_ALLFAIL   0

Definition at line 13 of file draw_tests.h.

ATEST_METHOD_ALLPASS

#define ATEST_METHOD_ALLPASS   1

Definition at line 14 of file draw_tests.h.

ATEST_METHOD_EQUAL

#define ATEST_METHOD_EQUAL   4

Definition at line 17 of file draw_tests.h.

ATEST_METHOD_GREATER

#define ATEST_METHOD_GREATER   6

Definition at line 19 of file draw_tests.h.

ATEST_METHOD_GREATER_EQUAL

#define ATEST_METHOD_GREATER_EQUAL   5

Definition at line 18 of file draw_tests.h.

ATEST_METHOD_LESS

#define ATEST_METHOD_LESS   2

Definition at line 15 of file draw_tests.h.

ATEST_METHOD_LESS_EQUAL

#define ATEST_METHOD_LESS_EQUAL   3

Definition at line 16 of file draw_tests.h.

ATEST_METHOD_NOTEQUAL

#define ATEST_METHOD_NOTEQUAL   7

Definition at line 20 of file draw_tests.h.

DTEST_METHOD_PASS_ONE

#define DTEST_METHOD_PASS_ONE   1

Definition at line 29 of file draw_tests.h.

DTEST_METHOD_PASS_ZERO

#define DTEST_METHOD_PASS_ZERO   0

Destination Alpha Testing

Definition at line 28 of file draw_tests.h.

ZTEST_METHOD_ALLFAIL

#define ZTEST_METHOD_ALLFAIL   0

Depth Test

Definition at line 32 of file draw_tests.h.

ZTEST_METHOD_ALLPASS

#define ZTEST_METHOD_ALLPASS   1

Definition at line 33 of file draw_tests.h.

ZTEST_METHOD_GREATER

#define ZTEST_METHOD_GREATER   3

Definition at line 35 of file draw_tests.h.

ZTEST_METHOD_GREATER_EQUAL

#define ZTEST_METHOD_GREATER_EQUAL   2

Definition at line 34 of file draw_tests.h.

Function Documentation

draw_disable_tests()

qword_t* draw_disable_tests	(	qword_t *	q,
		int	context,
		zbuffer_t *	z
	)

Disable pixel testing defaults

Definition at line 120 of file draw.c.

{
 
        PACK_GIFTAG(q,GIF_SET_TAG(1,0,0,0,GIF_FLG_PACKED,1), GIF_REG_AD);
        q++;
        PACK_GIFTAG(q, GS_SET_TEST(DRAW_ENABLE,ATEST_METHOD_NOTEQUAL,0x00,ATEST_KEEP_FRAMEBUFFER,
                                                           DRAW_DISABLE,DRAW_DISABLE,
                                                           DRAW_ENABLE,ZTEST_METHOD_ALLPASS), GS_REG_TEST + context);
        q++;
 
        return q;
 
}

References ATEST_KEEP_FRAMEBUFFER, ATEST_METHOD_NOTEQUAL, context, DRAW_DISABLE, DRAW_ENABLE, GIF_FLG_PACKED, GIF_REG_AD, GIF_SET_TAG, GS_REG_TEST, GS_SET_TEST, PACK_GIFTAG, and ZTEST_METHOD_ALLPASS.

Referenced by clear_screen(), and render().

draw_enable_tests()

qword_t* draw_enable_tests	(	qword_t *	q,
		int	context,
		zbuffer_t *	z
	)

Enable pixel testing defaults

Definition at line 134 of file draw.c.

{
 
        PACK_GIFTAG(q,GIF_SET_TAG(1,0,0,0,GIF_FLG_PACKED,1), GIF_REG_AD);
        q++;
        PACK_GIFTAG(q, GS_SET_TEST(DRAW_ENABLE,ATEST_METHOD_NOTEQUAL,0x00,ATEST_KEEP_FRAMEBUFFER,
                                                           DRAW_DISABLE,DRAW_DISABLE,
                                                           DRAW_ENABLE,z->method), GS_REG_TEST + context);
        q++;
 
        return q;
 
}

References ATEST_KEEP_FRAMEBUFFER, ATEST_METHOD_NOTEQUAL, context, DRAW_DISABLE, DRAW_ENABLE, GIF_FLG_PACKED, GIF_REG_AD, GIF_SET_TAG, GS_REG_TEST, GS_SET_TEST, zbuffer_t::method, and PACK_GIFTAG.

Referenced by clear_screen(), and render().

draw_pixel_test()

qword_t* draw_pixel_test	(	qword_t *	q,
		int	context,
		atest_t *	atest,
		dtest_t *	dtest,
		ztest_t *	ztest
	)

Pixel Testing

Definition at line 286 of file draw_environment.c.

{
 
        PACK_GIFTAG(q, GIF_SET_TAG(1,0,0,0,GIF_FLG_PACKED,1), GIF_REG_AD);
        q++;
 
        PACK_GIFTAG(q, GS_SET_TEST(atest->enable,atest->method,atest->compval,atest->keep,
                                                           dtest->enable,dtest->pass,
                                                           ztest->enable,ztest->method), GS_REG_TEST + context);
        q++;
 
        return q;
 
}

References atest_t::compval, context, atest_t::enable, dtest_t::enable, ztest_t::enable, GIF_FLG_PACKED, GIF_REG_AD, GIF_SET_TAG, GS_REG_TEST, GS_SET_TEST, atest_t::keep, atest_t::method, ztest_t::method, PACK_GIFTAG, and dtest_t::pass.

draw_scissor_area()

qword_t* draw_scissor_area	(	qword_t *	q,
		int	context,
		int	x0,
		int	x1,
		int	y0,
		int	y1
	)

Scissoring pixel test area

Definition at line 273 of file draw_environment.c.

{
 
        PACK_GIFTAG(q, GIF_SET_TAG(1,0,0,0,GIF_FLG_PACKED,1), GIF_REG_AD);
        q++;
 
        PACK_GIFTAG(q, GS_SET_SCISSOR(x0,x1,y0,y1), GS_REG_SCISSOR + context);
        q++;
 
        return q;
 
}

References context, GIF_FLG_PACKED, GIF_REG_AD, GIF_SET_TAG, GS_REG_SCISSOR, GS_SET_SCISSOR, and PACK_GIFTAG.