draw_vs.h revision b79b05e17e197a7cdc523deff8f7ea456a91e8d0
1/************************************************************************** 2 * 3 * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas. 4 * All Rights Reserved. 5 * 6 * Permission is hereby granted, free of charge, to any person obtaining a 7 * copy of this software and associated documentation files (the 8 * "Software"), to deal in the Software without restriction, including 9 * without limitation the rights to use, copy, modify, merge, publish, 10 * distribute, sub license, and/or sell copies of the Software, and to 11 * permit persons to whom the Software is furnished to do so, subject to 12 * the following conditions: 13 * 14 * The above copyright notice and this permission notice (including the 15 * next paragraph) shall be included in all copies or substantial portions 16 * of the Software. 17 * 18 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS 19 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF 20 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. 21 * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR 22 * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, 23 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE 24 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. 25 * 26 **************************************************************************/ 27 28/* Authors: Keith Whitwell <keith@tungstengraphics.com> 29 */ 30 31#ifndef DRAW_VS_H 32#define DRAW_VS_H 33 34#include "draw_context.h" 35#include "draw_private.h" 36#include "draw_vertex.h" 37 38 39struct draw_context; 40struct pipe_shader_state; 41 42struct draw_variant_input 43{ 44 enum pipe_format format; 45 unsigned buffer; 46 unsigned offset; 47 unsigned instance_divisor; 48}; 49 50struct draw_variant_output 51{ 52 enum attrib_emit format; /* output format */ 53 unsigned vs_output:8; /* which vertex shader output is this? */ 54 unsigned offset:24; /* offset into output vertex */ 55}; 56 57struct draw_variant_element { 58 struct draw_variant_input in; 59 struct draw_variant_output out; 60}; 61 62struct draw_vs_variant_key { 63 unsigned output_stride; 64 unsigned nr_elements:8; /* max2(nr_inputs, nr_outputs) */ 65 unsigned nr_inputs:8; 66 unsigned nr_outputs:8; 67 unsigned viewport:1; 68 unsigned clip:1; 69 unsigned const_vbuffers:5; 70 struct draw_variant_element element[PIPE_MAX_ATTRIBS]; 71}; 72 73struct draw_vs_variant; 74 75 76struct draw_vs_variant { 77 struct draw_vs_variant_key key; 78 79 struct draw_vertex_shader *vs; 80 81 void (*set_buffer)( struct draw_vs_variant *, 82 unsigned i, 83 const void *ptr, 84 unsigned stride, 85 unsigned max_stride ); 86 87 void (PIPE_CDECL *run_linear)( struct draw_vs_variant *shader, 88 unsigned start, 89 unsigned count, 90 void *output_buffer ); 91 92 void (PIPE_CDECL *run_elts)( struct draw_vs_variant *shader, 93 const unsigned *elts, 94 unsigned count, 95 void *output_buffer ); 96 97 void (*destroy)( struct draw_vs_variant * ); 98}; 99 100 101/** 102 * Private version of the compiled vertex_shader 103 */ 104struct draw_vertex_shader { 105 struct draw_context *draw; 106 107 /* This member will disappear shortly: 108 */ 109 struct pipe_shader_state state; 110 111 struct tgsi_shader_info info; 112 unsigned position_output; 113 unsigned edgeflag_output; 114 115 /* Extracted from shader: 116 */ 117 const float (*immediates)[4]; 118 119 /* 120 */ 121 struct draw_vs_variant *variant[16]; 122 unsigned nr_variants; 123 unsigned last_variant; 124 struct draw_vs_variant *(*create_variant)( struct draw_vertex_shader *shader, 125 const struct draw_vs_variant_key *key ); 126 127 128 void (*prepare)( struct draw_vertex_shader *shader, 129 struct draw_context *draw ); 130 131 /* Run the shader - this interface will get cleaned up in the 132 * future: 133 */ 134 void (*run_linear)( struct draw_vertex_shader *shader, 135 const float (*input)[4], 136 float (*output)[4], 137 const void *constants[PIPE_MAX_CONSTANT_BUFFERS], 138 const unsigned const_size[PIPE_MAX_CONSTANT_BUFFERS], 139 unsigned count, 140 unsigned input_stride, 141 unsigned output_stride ); 142 143 144 void (*delete)( struct draw_vertex_shader * ); 145}; 146 147 148struct draw_vs_variant * 149draw_vs_lookup_variant( struct draw_vertex_shader *base, 150 const struct draw_vs_variant_key *key ); 151 152 153/******************************************************************************** 154 * Internal functions: 155 */ 156 157struct draw_vertex_shader * 158draw_create_vs_exec(struct draw_context *draw, 159 const struct pipe_shader_state *templ); 160 161struct draw_vertex_shader * 162draw_create_vs_sse(struct draw_context *draw, 163 const struct pipe_shader_state *templ); 164 165struct draw_vertex_shader * 166draw_create_vs_ppc(struct draw_context *draw, 167 const struct pipe_shader_state *templ); 168 169 170struct draw_vs_variant_key; 171struct draw_vertex_shader; 172 173struct draw_vs_variant * 174draw_vs_create_variant_aos_sse( struct draw_vertex_shader *vs, 175 const struct draw_vs_variant_key *key ); 176 177#if HAVE_LLVM 178struct draw_vertex_shader * 179draw_create_vs_llvm(struct draw_context *draw, 180 const struct pipe_shader_state *state); 181#endif 182 183 184/******************************************************************************** 185 * Helpers for vs implementations that don't do their own fetch/emit variants. 186 * Means these can be shared between shaders. 187 */ 188struct translate; 189struct translate_key; 190 191struct translate *draw_vs_get_fetch( struct draw_context *draw, 192 struct translate_key *key ); 193 194 195struct translate *draw_vs_get_emit( struct draw_context *draw, 196 struct translate_key *key ); 197 198struct draw_vs_variant * 199draw_vs_create_variant_generic( struct draw_vertex_shader *vs, 200 const struct draw_vs_variant_key *key ); 201 202 203 204static INLINE int draw_vs_variant_keysize( const struct draw_vs_variant_key *key ) 205{ 206 return 2 * sizeof(int) + key->nr_elements * sizeof(struct draw_variant_element); 207} 208 209static INLINE int draw_vs_variant_key_compare( const struct draw_vs_variant_key *a, 210 const struct draw_vs_variant_key *b ) 211{ 212 int keysize = draw_vs_variant_keysize(a); 213 return memcmp(a, b, keysize); 214} 215 216 217struct aos_machine *draw_vs_aos_machine( void ); 218void draw_vs_aos_machine_destroy( struct aos_machine *machine ); 219 220void 221draw_vs_aos_machine_constants(struct aos_machine *machine, 222 unsigned slot, 223 const void *constants); 224 225void draw_vs_aos_machine_viewport( struct aos_machine *machine, 226 const struct pipe_viewport_state *viewport ); 227 228 229#define MAX_TGSI_VERTICES 4 230 231 232 233#endif 234