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/*
* Copyright 2003 Tungsten Graphics, inc.
* All Rights Reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* on the rights to use, copy, modify, merge, publish, distribute, sub
* license, and/or sell copies of the Software, and to permit persons to whom
* the Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice (including the next
* paragraph) shall be included in all copies or substantial portions of the
* Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
* TUNGSTEN GRAPHICS AND/OR THEIR SUPPLIERS BE LIABLE FOR ANY CLAIM,
* DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
* OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
* USE OR OTHER DEALINGS IN THE SOFTWARE.
*
* Authors:
* Keith Whitwell <keithw@tungstengraphics.com>
*/
#ifndef VF_VERTEX_H
#define VF_VERTEX_H
#include "mtypes.h"
#include "m_vector.h"
enum {
VF_ATTRIB_POS = 0,
VF_ATTRIB_WEIGHT = 1,
VF_ATTRIB_NORMAL = 2,
VF_ATTRIB_COLOR0 = 3,
VF_ATTRIB_COLOR1 = 4,
VF_ATTRIB_FOG = 5,
VF_ATTRIB_COLOR_INDEX = 6,
VF_ATTRIB_EDGEFLAG = 7,
VF_ATTRIB_TEX0 = 8,
VF_ATTRIB_TEX1 = 9,
VF_ATTRIB_TEX2 = 10,
VF_ATTRIB_TEX3 = 11,
VF_ATTRIB_TEX4 = 12,
VF_ATTRIB_TEX5 = 13,
VF_ATTRIB_TEX6 = 14,
VF_ATTRIB_TEX7 = 15,
VF_ATTRIB_POINTSIZE = 16,
VF_ATTRIB_BFC0 = 17,
VF_ATTRIB_BFC1 = 18,
VF_ATTRIB_CLIP_POS = 19,
VF_ATTRIB_VERTEX_HEADER = 20,
VF_ATTRIB_MAX = 21
};
enum vf_attr_format {
EMIT_1F,
EMIT_2F,
EMIT_3F,
EMIT_4F,
EMIT_2F_VIEWPORT, /* do viewport transform and emit */
EMIT_3F_VIEWPORT, /* do viewport transform and emit */
EMIT_4F_VIEWPORT, /* do viewport transform and emit */
EMIT_3F_XYW, /* for projective texture */
EMIT_1UB_1F, /* for fog coordinate */
EMIT_3UB_3F_RGB, /* for specular color */
EMIT_3UB_3F_BGR, /* for specular color */
EMIT_4UB_4F_RGBA, /* for color */
EMIT_4UB_4F_BGRA, /* for color */
EMIT_4UB_4F_ARGB, /* for color */
EMIT_4UB_4F_ABGR, /* for color */
EMIT_4CHAN_4F_RGBA, /* for swrast color */
EMIT_PAD, /* leave a hole of 'offset' bytes */
EMIT_MAX
};
struct vf_attr_map {
GLuint attrib;
enum vf_attr_format format;
GLuint offset;
};
struct vertex_fetch;
void vf_set_vp_matrix( struct vertex_fetch *vf,
const GLfloat *viewport );
void vf_set_vp_scale_translate( struct vertex_fetch *vf,
const GLfloat *scale,
const GLfloat *translate );
GLuint vf_set_vertex_attributes( struct vertex_fetch *vf,
const struct vf_attr_map *map,
GLuint nr,
GLuint vertex_stride );
void vf_set_sources( struct vertex_fetch *vf,
GLvector4f * const attrib[],
GLuint start );
void vf_emit_vertices( struct vertex_fetch *vf,
GLuint count,
void *dest );
void vf_get_attr( struct vertex_fetch *vf,
const void *vertex,
GLenum attr,
const GLfloat *dflt,
GLfloat *dest );
struct vertex_fetch *vf_create( GLboolean allow_viewport_emits );
void vf_destroy( struct vertex_fetch *vf );
/***********************************************************************
* Internal functions and structs:
*/
struct vf_attr;
typedef void (*vf_extract_func)( const struct vf_attr *a,
GLfloat *out,
const GLubyte *v );
typedef void (*vf_insert_func)( const struct vf_attr *a,
GLubyte *v,
const GLfloat *in );
typedef void (*vf_emit_func)( struct vertex_fetch *vf,
GLuint count,
GLubyte *dest );
/* Describes how to convert/move a vertex attribute from a vertex
* array to a vertex structure.
*/
struct vf_attr
{
struct vertex_fetch *vf;
GLuint format;
GLuint inputsize;
GLuint inputstride;
GLuint vertoffset; /* position of the attrib in the vertex struct */
GLuint attrib; /* which vertex attrib (0=position, etc) */
GLuint vertattrsize; /* size of the attribute in bytes */
GLubyte *inputptr;
const vf_insert_func *insert;
vf_insert_func do_insert;
vf_extract_func extract;
};
struct vertex_fetch
{
struct vf_attr attr[VF_ATTRIB_MAX];
GLuint attr_count;
GLuint vertex_stride;
struct vf_attr *lookup[VF_ATTRIB_MAX];
vf_emit_func emit;
/* Parameters and constants for codegen:
*/
GLboolean allow_viewport_emits;
GLfloat vp[8];
GLfloat chan_scale[4];
GLfloat identity[4];
struct vf_fastpath *fastpath;
void (*codegen_emit)( struct vertex_fetch *vf );
};
struct vf_attr_type {
GLuint format;
GLuint size;
GLuint stride;
GLuint offset;
};
struct vf_fastpath {
GLuint vertex_stride;
GLuint attr_count;
GLboolean match_strides;
struct vf_attr_type *attr;
vf_emit_func func;
struct vf_fastpath *next;
};
void vf_register_fastpath( struct vertex_fetch *vtx,
GLboolean match_strides );
void vf_generic_emit( struct vertex_fetch *vf,
GLuint count,
GLubyte *v );
void vf_generate_hardwired_emit( struct vertex_fetch *vf );
void vf_generate_sse_emit( struct vertex_fetch *vf );
struct vf_format_info {
const char *name;
vf_extract_func extract;
vf_insert_func insert[4];
const GLuint attrsize;
};
const struct vf_format_info vf_format_info[EMIT_MAX];
#endif
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