raster3d.c File Reference

#include "rast_soft.h"

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Macros
#define	float_clamp(_val, _minval, _maxval)    (_val<_minval) ? _minval : (_val>_maxval) ? _maxval : _val;
#define	GETVEC(_name, _idx)

Functions
static float	edgeFunction (const GF_Vec4 *a, const GF_Vec4 *b, const GF_Vec4 *c)
float	edgeFunction_pre (const GF_Vec4 *a, const Float b_minus_a_x, const Float b_minus_a_y, const GF_Vec4 *c)
static GFINLINE Bool	evg3d_persp_divide (GF_Vec4 *pt)
static GFINLINE void	evg_ndc_to_raster (GF_EVGSurface *surf, GF_Vec4 *pt, TPos *x, TPos *y)
static GFINLINE int	gray3d_move_to (GF_EVGSurface *surf, TPos x, TPos y)
GF_Err	evg_raster_render_path_3d (GF_EVGSurface *surf)
void	evg_get_fragment (GF_EVGSurface *surf, EVGRasterCtx *rctx, Bool *is_transparent)
static void	push_patch_pixel (AAScanline *sl, s32 x, u32 col, u8 coverage, Float depth, Float write_depth, u32 idx1, u32 idx2)
static PatchPixel *	get_patch_pixel (AAScanline *sl, s32 x)
static void	remove_patch_pixel (AAScanline *sl, s32 x)
void	EVG3D_SpanFunc (int y, int count, EVG_Span *spans, GF_EVGSurface *surf, EVGRasterCtx *rctx)
static GFINLINE Bool	precompute_tri (GF_EVGSurface *surf, GF_EVGFragmentParam *fparam, TPos xmin, TPos xmax, TPos ymin, TPos ymax, TPos _x1, TPos _y1, TPos _x2, TPos _y2, TPos _x3, TPos _y3, GF_Vec4 *s_pt1, GF_Vec4 *s_pt2, GF_Vec4 *s_pt3, u32 vidx1, u32 vidx2, u32 vidx3)
GF_Err	evg_raster_render3d (GF_EVGSurface *surf, u32 *indices, u32 nb_idx, Float *vertices, u32 nb_vertices, u32 nb_comp, GF_EVGPrimitiveType prim_type)
GF_Err	evg_raster_render3d_path (GF_EVGSurface *surf, GF_Path *path, Float z)
GF_EXPORT GF_Err	gf_evg_surface_clear_depth (GF_EVGSurface *surf, Float depth)
GF_EXPORT GF_Err	gf_evg_surface_viewport (GF_EVGSurface *surf, u32 x, u32 y, u32 w, u32 h)
static Bool	depth_test_never (Float depth_buf_value, Float frag_value)
static Bool	depth_test_always (Float depth_buf_value, Float frag_value)
static Bool	depth_test_less (Float depth_buf_value, Float frag_value)
static Bool	depth_test_less_equal (Float depth_buf_value, Float frag_value)
static Bool	depth_test_equal (Float depth_buf_value, Float frag_value)
static Bool	depth_test_greater (Float depth_buf_value, Float frag_value)
static Bool	depth_test_greater_equal (Float depth_buf_value, Float frag_value)
static Bool	depth_test_not_equal (Float depth_buf_value, Float frag_value)
GF_EXPORT GF_Err	gf_evg_set_depth_test (GF_EVGSurface *surf, GF_EVGDepthTest mode)
GF_Err	evg_3d_update_depth_range (GF_EVGSurface *surf)
EVG_Surface3DExt *	evg_init_3d_surface (GF_EVGSurface *surf)
GF_Err	gf_evg_surface_set_fragment_shader (GF_EVGSurface *surf, gf_evg_fragment_shader shader, gf_evg_fragment_shader_init shader_init, void *shader_udta)
GF_Err	gf_evg_surface_disable_early_depth (GF_EVGSurface *surf, Bool disable)
GF_Err	gf_evg_surface_set_vertex_shader (GF_EVGSurface *surf, gf_evg_vertex_shader shader, void *shader_udta)
GF_Err	gf_evg_surface_set_ccw (GF_EVGSurface *surf, Bool is_ccw)
GF_Err	gf_evg_surface_set_backcull (GF_EVGSurface *surf, Bool backcull)
GF_Err	gf_evg_surface_set_antialias (GF_EVGSurface *surf, Bool antialias)
GF_Err	gf_evg_surface_set_min_depth (GF_EVGSurface *surf, Float min_depth)
GF_Err	gf_evg_surface_set_max_depth (GF_EVGSurface *surf, Float max_depth)
GF_Err	gf_evg_surface_set_clip_zero (GF_EVGSurface *surf, Bool clip_zero)
GF_Err	gf_evg_surface_set_point_size (GF_EVGSurface *surf, Float size)
GF_Err	gf_evg_surface_set_line_size (GF_EVGSurface *surf, Float size)
GF_Err	gf_evg_surface_set_point_smooth (GF_EVGSurface *surf, Bool smooth)
GF_Err	gf_evg_surface_write_depth (GF_EVGSurface *surf, Bool do_write)
GF_Err	gf_evg_surface_set_depth_buffer (GF_EVGSurface *surf, Float *depth)

Macro Definition Documentation

float_clamp

#define float_clamp	(		_val,
			_minval,
			_maxval
	)		(_val<_minval) ? _minval : (_val>_maxval) ? _maxval : _val;

GETVEC

#define GETVEC	(		_name,
			_idx
	)

Value:

                vx->x = vertices[_idx];\
                vx->y = vertices[_idx+1];\
                if (_idx+nb_comp_1>=nb_vertices) return GF_BAD_PARAM;\
                vx->z = (nb_comp>2) ? vertices[_idx+2] : 0.0f;\
                vx->q = 1.0;\
                if (s3d->vert_shader) {\
                        s3d->vert_shader(s3d->vert_shader_udta, &vparam); \
                        s_##_name = vparam.out_vertex;\
                } else {\
                        s_##_name.x = vx->x;\
                        s_##_name.y = vx->y;\
                        s_##_name.z = vx->z;\
                        s_##_name.q = 1;\
                        gf_mx_apply_vec_4x4(&projModeView, &s_##_name);\
                }\
                if (!evg3d_persp_divide(&s_##_name)) continue;\

Function Documentation

edgeFunction()

static float edgeFunction ( const GF_Vec4 *  a, const GF_Vec4 *  b, const GF_Vec4 *  c  )

static

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edgeFunction_pre()

float edgeFunction_pre	(	const GF_Vec4 *	a,
		const Float	b_minus_a_x,
		const Float	b_minus_a_y,
		const GF_Vec4 *	c
	)

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evg3d_persp_divide()

static GFINLINE Bool evg3d_persp_divide ( GF_Vec4 *  pt )

static

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evg_ndc_to_raster()

static GFINLINE void evg_ndc_to_raster ( GF_EVGSurface *  surf, GF_Vec4 *  pt, TPos *  x, TPos *  y  )

static

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gray3d_move_to()

static GFINLINE int gray3d_move_to ( GF_EVGSurface *  surf, TPos  x, TPos  y  )

static

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evg_raster_render_path_3d()

GF_Err evg_raster_render_path_3d

(

GF_EVGSurface *

surf

)

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evg_get_fragment()

void evg_get_fragment	(	GF_EVGSurface *	surf,
		EVGRasterCtx *	rctx,
		Bool *	is_transparent
	)

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push_patch_pixel()

static void push_patch_pixel ( AAScanline *  sl, s32  x, u32  col, u8  coverage, Float  depth, Float  write_depth, u32  idx1, u32  idx2  )

static

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get_patch_pixel()

static PatchPixel* get_patch_pixel ( AAScanline *  sl, s32  x  )

static

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remove_patch_pixel()

static void remove_patch_pixel ( AAScanline *  sl, s32  x  )

static

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EVG3D_SpanFunc()

void EVG3D_SpanFunc	(	int	y,
		int	count,
		EVG_Span *	spans,
		GF_EVGSurface *	surf,
		EVGRasterCtx *	rctx
	)

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precompute_tri()

static GFINLINE Bool precompute_tri ( GF_EVGSurface *  surf, GF_EVGFragmentParam *  fparam, TPos  xmin, TPos  xmax, TPos  ymin, TPos  ymax, TPos  _x1, TPos  _y1, TPos  _x2, TPos  _y2, TPos  _x3, TPos  _y3, GF_Vec4 *  s_pt1, GF_Vec4 *  s_pt2, GF_Vec4 *  s_pt3, u32  vidx1, u32  vidx2, u32  vidx3  )

static

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evg_raster_render3d()

GF_Err evg_raster_render3d	(	GF_EVGSurface *	surf,
		u32 *	indices,
		u32	nb_idx,
		Float *	vertices,
		u32	nb_vertices,
		u32	nb_comp,
		GF_EVGPrimitiveType	prim_type
	)

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evg_raster_render3d_path()

GF_Err evg_raster_render3d_path	(	GF_EVGSurface *	surf,
		GF_Path *	path,
		Float	z
	)

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depth_test_never()

static Bool depth_test_never ( Float  depth_buf_value, Float  frag_value  )

static

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depth_test_always()

static Bool depth_test_always ( Float  depth_buf_value, Float  frag_value  )

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depth_test_less()

static Bool depth_test_less ( Float  depth_buf_value, Float  frag_value  )

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depth_test_less_equal()

static Bool depth_test_less_equal ( Float  depth_buf_value, Float  frag_value  )

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depth_test_equal()

static Bool depth_test_equal ( Float  depth_buf_value, Float  frag_value  )

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depth_test_greater()

static Bool depth_test_greater ( Float  depth_buf_value, Float  frag_value  )

static

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depth_test_greater_equal()

static Bool depth_test_greater_equal ( Float  depth_buf_value, Float  frag_value  )

static

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depth_test_not_equal()

static Bool depth_test_not_equal ( Float  depth_buf_value, Float  frag_value  )

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evg_3d_update_depth_range()

GF_Err evg_3d_update_depth_range

(

GF_EVGSurface *

surf

)

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evg_init_3d_surface()

EVG_Surface3DExt* evg_init_3d_surface

(

GF_EVGSurface *

surf

)

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