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Diffstat (limited to 'src/mesa/pipe/draw/draw_vf.h')
| -rw-r--r-- | src/mesa/pipe/draw/draw_vf.h | 249 |
1 files changed, 249 insertions, 0 deletions
diff --git a/src/mesa/pipe/draw/draw_vf.h b/src/mesa/pipe/draw/draw_vf.h new file mode 100644 index 0000000000..279570aad5 --- /dev/null +++ b/src/mesa/pipe/draw/draw_vf.h @@ -0,0 +1,249 @@ +/* + * 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 DRAW_VF_H +#define DRAW_VF_H + + +#include "pipe/p_compiler.h" +#include "math/m_vector.h" + + +enum { + DRAW_VF_ATTRIB_POS = 0, + DRAW_VF_ATTRIB_WEIGHT = 1, + DRAW_VF_ATTRIB_NORMAL = 2, + DRAW_VF_ATTRIB_COLOR0 = 3, + DRAW_VF_ATTRIB_COLOR1 = 4, + DRAW_VF_ATTRIB_FOG = 5, + DRAW_VF_ATTRIB_COLOR_INDEX = 6, + DRAW_VF_ATTRIB_EDGEFLAG = 7, + DRAW_VF_ATTRIB_TEX0 = 8, + DRAW_VF_ATTRIB_TEX1 = 9, + DRAW_VF_ATTRIB_TEX2 = 10, + DRAW_VF_ATTRIB_TEX3 = 11, + DRAW_VF_ATTRIB_TEX4 = 12, + DRAW_VF_ATTRIB_TEX5 = 13, + DRAW_VF_ATTRIB_TEX6 = 14, + DRAW_VF_ATTRIB_TEX7 = 15, + DRAW_VF_ATTRIB_VAR0 = 16, + DRAW_VF_ATTRIB_VAR1 = 17, + DRAW_VF_ATTRIB_VAR2 = 18, + DRAW_VF_ATTRIB_VAR3 = 19, + DRAW_VF_ATTRIB_VAR4 = 20, + DRAW_VF_ATTRIB_VAR5 = 21, + DRAW_VF_ATTRIB_VAR6 = 22, + DRAW_VF_ATTRIB_VAR7 = 23, + DRAW_VF_ATTRIB_POINTSIZE = 24, + DRAW_VF_ATTRIB_BFC0 = 25, + DRAW_VF_ATTRIB_BFC1 = 26, + DRAW_VF_ATTRIB_CLIP_POS = 27, + DRAW_VF_ATTRIB_VERTEX_HEADER = 28, + DRAW_VF_ATTRIB_MAX = 29 +}; + +enum draw_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 draw_vf_attr_map { + unsigned attrib; + enum draw_vf_attr_format format; + unsigned offset; +}; + +struct draw_vertex_fetch; + + +void +draw_vf_set_vp_matrix( struct draw_vertex_fetch *vf, + const float *viewport ); + +void +draw_vf_set_vp_scale_translate( struct draw_vertex_fetch *vf, + const float *scale, + const float *translate ); + +unsigned +draw_vf_set_vertex_attributes( struct draw_vertex_fetch *vf, + const struct draw_vf_attr_map *map, + unsigned nr, + unsigned vertex_stride ); + +void +draw_vf_set_sources( struct draw_vertex_fetch *vf, + GLvector4f * const attrib[], + unsigned start ); + +void +draw_vf_emit_vertices( struct draw_vertex_fetch *vf, + unsigned count, + void *dest ); + +void +draw_vf_get_attr( struct draw_vertex_fetch *vf, + const void *vertex, + GLenum attr, + const float *dflt, + float *dest ); + +struct draw_vertex_fetch * +draw_vf_create( boolean allow_viewport_emits ); + +void +draw_vf_destroy( struct draw_vertex_fetch *vf ); + + + +/*********************************************************************** + * Internal functions and structs: + */ + +struct draw_vf_attr; + +typedef void (*draw_vf_extract_func)( const struct draw_vf_attr *a, + float *out, + const uint8_t *v ); + +typedef void (*draw_vf_insert_func)( const struct draw_vf_attr *a, + uint8_t *v, + const float *in ); + +typedef void (*draw_vf_emit_func)( struct draw_vertex_fetch *vf, + unsigned count, + uint8_t *dest ); + + + +/** + * Describes how to convert/move a vertex attribute from a vertex + * array to a vertex structure. + */ +struct draw_vf_attr +{ + struct draw_vertex_fetch *vf; + + unsigned format; + unsigned inputsize; + unsigned inputstride; + unsigned vertoffset; /**< position of the attrib in the vertex struct */ + + unsigned attrib; /**< which vertex attrib (0=position, etc) */ + unsigned vertattrsize; /**< size of the attribute in bytes */ + + uint8_t *inputptr; + const draw_vf_insert_func *insert; + draw_vf_insert_func do_insert; + draw_vf_extract_func extract; +}; + +struct draw_vertex_fetch +{ + struct draw_vf_attr attr[DRAW_VF_ATTRIB_MAX]; + unsigned attr_count; + unsigned vertex_stride; + + struct draw_vf_attr *lookup[DRAW_VF_ATTRIB_MAX]; + + draw_vf_emit_func emit; + + /* Parameters and constants for codegen: + */ + boolean allow_viewport_emits; + float vp[8]; + float chan_scale[4]; + float identity[4]; + + struct draw_vf_fastpath *fastpath; + + void (*codegen_emit)( struct draw_vertex_fetch *vf ); +}; + + +struct draw_vf_attr_type { + unsigned format; + unsigned size; + unsigned stride; + unsigned offset; +}; + +struct draw_vf_fastpath { + unsigned vertex_stride; + unsigned attr_count; + boolean match_strides; + + struct draw_vf_attr_type *attr; + + draw_vf_emit_func func; + struct draw_vf_fastpath *next; +}; + + +void +draw_vf_register_fastpath( struct draw_vertex_fetch *vtx, + boolean match_strides ); + +void +draw_vf_generic_emit( struct draw_vertex_fetch *vf, + unsigned count, + uint8_t *v ); + +void +draw_vf_generate_hardwired_emit( struct draw_vertex_fetch *vf ); + +void +draw_vf_generate_sse_emit( struct draw_vertex_fetch *vf ); + + +struct draw_vf_format_info { + const char *name; + draw_vf_extract_func extract; + draw_vf_insert_func insert[4]; + const unsigned attrsize; +}; + +const struct draw_vf_format_info draw_vf_format_info[EMIT_MAX]; + + +#endif |