1 /* 2 * Copyright 2003 VMware, Inc. 3 * All Rights Reserved. 4 * 5 * Permission is hereby granted, free of charge, to any person obtaining a 6 * copy of this software and associated documentation files (the "Software"), 7 * to deal in the Software without restriction, including without limitation 8 * on the rights to use, copy, modify, merge, publish, distribute, sub 9 * license, and/or sell copies of the Software, and to permit persons to whom 10 * the Software is furnished to do so, subject to the following conditions: 11 * 12 * The above copyright notice and this permission notice (including the next 13 * paragraph) shall be included in all copies or substantial portions of the 14 * Software. 15 * 16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 18 * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL 19 * VMWARE AND/OR THEIR SUPPLIERS BE LIABLE FOR ANY CLAIM, 20 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR 21 * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE 22 * USE OR OTHER DEALINGS IN THE SOFTWARE. 23 * 24 * Authors: 25 * Keith Whitwell <keithw (at) vmware.com> 26 */ 27 28 #ifndef _TNL_VERTEX_H 29 #define _TNL_VERTEX_H 30 31 #include "main/glheader.h" 32 #include "t_context.h" 33 34 struct gl_context; 35 struct tnl_clipspace; 36 37 /* New mechanism to specify hardware vertices so that tnl can build 38 * and manipulate them directly. 39 */ 40 41 42 /* It will probably be necessary to allow drivers to specify new 43 * emit-styles to cover all the weird and wacky things out there. 44 */ 45 enum tnl_attr_format { 46 EMIT_1F, 47 EMIT_2F, 48 EMIT_3F, 49 EMIT_4F, 50 EMIT_2F_VIEWPORT, /* do viewport transform and emit */ 51 EMIT_3F_VIEWPORT, /* do viewport transform and emit */ 52 EMIT_4F_VIEWPORT, /* do viewport transform and emit */ 53 EMIT_3F_XYW, /* for projective texture */ 54 EMIT_1UB_1F, /* for fog coordinate */ 55 EMIT_3UB_3F_RGB, /* for specular color */ 56 EMIT_3UB_3F_BGR, /* for specular color */ 57 EMIT_4UB_4F_RGBA, /* for color */ 58 EMIT_4UB_4F_BGRA, /* for color */ 59 EMIT_4UB_4F_ARGB, /* for color */ 60 EMIT_4UB_4F_ABGR, /* for color */ 61 EMIT_4CHAN_4F_RGBA, /* for swrast color */ 62 EMIT_PAD, /* leave a hole of 'offset' bytes */ 63 EMIT_MAX 64 }; 65 66 struct tnl_attr_map { 67 GLuint attrib; /* _TNL_ATTRIB_ enum */ 68 enum tnl_attr_format format; 69 GLuint offset; 70 }; 71 72 struct tnl_format_info { 73 const char *name; 74 tnl_extract_func extract; 75 tnl_insert_func insert[4]; 76 const GLuint attrsize; 77 }; 78 79 extern const struct tnl_format_info _tnl_format_info[EMIT_MAX]; 80 81 82 /* Interpolate between two vertices to produce a third: 83 */ 84 extern void _tnl_interp( struct gl_context *ctx, 85 GLfloat t, 86 GLuint edst, GLuint eout, GLuint ein, 87 GLboolean force_boundary ); 88 89 /* Copy colors from one vertex to another: 90 */ 91 extern void _tnl_copy_pv( struct gl_context *ctx, GLuint edst, GLuint esrc ); 92 93 94 /* Extract a named attribute from a hardware vertex. Will have to 95 * reverse any viewport transformation, swizzling or other conversions 96 * which may have been applied: 97 */ 98 extern void _tnl_get_attr( struct gl_context *ctx, const void *vertex, GLenum attrib, 99 GLfloat *dest ); 100 101 /* Complementary to the above. 102 */ 103 extern void _tnl_set_attr( struct gl_context *ctx, void *vout, GLenum attrib, 104 const GLfloat *src ); 105 106 107 extern void *_tnl_get_vertex( struct gl_context *ctx, GLuint nr ); 108 109 extern GLuint _tnl_install_attrs( struct gl_context *ctx, 110 const struct tnl_attr_map *map, 111 GLuint nr, const GLfloat *vp, 112 GLuint unpacked_size ); 113 114 extern void _tnl_free_vertices( struct gl_context *ctx ); 115 116 extern void _tnl_init_vertices( struct gl_context *ctx, 117 GLuint vb_size, 118 GLuint max_vertex_size ); 119 120 extern void *_tnl_emit_vertices_to_buffer( struct gl_context *ctx, 121 GLuint start, 122 GLuint end, 123 void *dest ); 124 125 /* This function isn't optimal. Check out 126 * gallium/auxilary/translate for a more comprehensive implementation of 127 * the same functionality. 128 */ 129 130 extern void *_tnl_emit_indexed_vertices_to_buffer( struct gl_context *ctx, 131 const GLuint *elts, 132 GLuint start, 133 GLuint end, 134 void *dest ); 135 136 137 extern void _tnl_build_vertices( struct gl_context *ctx, 138 GLuint start, 139 GLuint end, 140 GLuint newinputs ); 141 142 extern void _tnl_invalidate_vertices( struct gl_context *ctx, GLuint newinputs ); 143 144 extern void _tnl_invalidate_vertex_state( struct gl_context *ctx, GLuint new_state ); 145 146 extern void _tnl_notify_pipeline_output_change( struct gl_context *ctx ); 147 148 149 #define GET_VERTEX_STATE(ctx) &(TNL_CONTEXT(ctx)->clipspace) 150 151 /* Internal function: 152 */ 153 void _tnl_register_fastpath( struct tnl_clipspace *vtx, 154 GLboolean match_strides ); 155 156 157 /* t_vertex_generic.c -- Internal functions for t_vertex.c 158 */ 159 void _tnl_generic_copy_pv_extras( struct gl_context *ctx, 160 GLuint dst, GLuint src ); 161 162 void _tnl_generic_interp_extras( struct gl_context *ctx, 163 GLfloat t, 164 GLuint dst, GLuint out, GLuint in, 165 GLboolean force_boundary ); 166 167 void _tnl_generic_copy_pv( struct gl_context *ctx, GLuint edst, GLuint esrc ); 168 169 void _tnl_generic_interp( struct gl_context *ctx, 170 GLfloat t, 171 GLuint edst, GLuint eout, GLuint ein, 172 GLboolean force_boundary ); 173 174 void _tnl_generic_emit( struct gl_context *ctx, 175 GLuint count, 176 GLubyte *v ); 177 178 void _tnl_generate_hardwired_emit( struct gl_context *ctx ); 179 180 /* t_vertex_sse.c -- Internal functions for t_vertex.c 181 */ 182 void _tnl_generate_sse_emit( struct gl_context *ctx ); 183 184 #endif 185
