1 /* 2 * Copyright 2009 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 * TUNGSTEN GRAPHICS 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 25 #ifndef U_INDICES_H 26 #define U_INDICES_H 27 28 #include "pipe/p_compiler.h" 29 30 #define PV_FIRST 0 31 #define PV_LAST 1 32 #define PV_COUNT 2 33 34 typedef void (*u_translate_func)( const void *in, 35 unsigned nr, 36 void *out ); 37 38 typedef void (*u_generate_func)( unsigned nr, 39 void *out ); 40 41 42 /* Return codes describe the translate/generate operation. Caller may 43 * be able to reuse translated indices under some circumstances. 44 */ 45 #define U_TRANSLATE_ERROR -1 46 #define U_TRANSLATE_NORMAL 1 47 #define U_TRANSLATE_MEMCPY 2 48 #define U_GENERATE_LINEAR 3 49 #define U_GENERATE_REUSABLE 4 50 #define U_GENERATE_ONE_OFF 5 51 52 53 void u_index_init( void ); 54 55 int u_index_translator( unsigned hw_mask, 56 unsigned prim, 57 unsigned in_index_size, 58 unsigned nr, 59 unsigned in_pv, /* API */ 60 unsigned out_pv, /* hardware */ 61 unsigned *out_prim, 62 unsigned *out_index_size, 63 unsigned *out_nr, 64 u_translate_func *out_translate ); 65 66 /* Note that even when generating it is necessary to know what the 67 * API's PV is, as the indices generated will depend on whether it is 68 * the same as hardware or not, and in the case of triangle strips, 69 * whether it is first or last. 70 */ 71 int u_index_generator( unsigned hw_mask, 72 unsigned prim, 73 unsigned start, 74 unsigned nr, 75 unsigned in_pv, /* API */ 76 unsigned out_pv, /* hardware */ 77 unsigned *out_prim, 78 unsigned *out_index_size, 79 unsigned *out_nr, 80 u_generate_func *out_generate ); 81 82 83 void u_unfilled_init( void ); 84 85 int u_unfilled_translator( unsigned prim, 86 unsigned in_index_size, 87 unsigned nr, 88 unsigned unfilled_mode, 89 unsigned *out_prim, 90 unsigned *out_index_size, 91 unsigned *out_nr, 92 u_translate_func *out_translate ); 93 94 int u_unfilled_generator( unsigned prim, 95 unsigned start, 96 unsigned nr, 97 unsigned unfilled_mode, 98 unsigned *out_prim, 99 unsigned *out_index_size, 100 unsigned *out_nr, 101 u_generate_func *out_generate ); 102 103 104 105 106 #endif 107