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Diffstat (limited to 'src/mesa/vf/vf.h')
| -rw-r--r-- | src/mesa/vf/vf.h | 234 |
1 files changed, 234 insertions, 0 deletions
diff --git a/src/mesa/vf/vf.h b/src/mesa/vf/vf.h new file mode 100644 index 0000000000..83d7547619 --- /dev/null +++ b/src/mesa/vf/vf.h @@ -0,0 +1,234 @@ +/* + * 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 "main/mtypes.h" +#include "math/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_VAR0 = 16, + VF_ATTRIB_VAR1 = 17, + VF_ATTRIB_VAR2 = 18, + VF_ATTRIB_VAR3 = 19, + VF_ATTRIB_VAR4 = 20, + VF_ATTRIB_VAR5 = 21, + VF_ATTRIB_VAR6 = 22, + VF_ATTRIB_VAR7 = 23, + VF_ATTRIB_POINTSIZE = 24, + VF_ATTRIB_BFC0 = 25, + VF_ATTRIB_BFC1 = 26, + VF_ATTRIB_CLIP_POS = 27, + VF_ATTRIB_VERTEX_HEADER = 28, + VF_ATTRIB_MAX = 29 +}; + + +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 |