1 /************************************************************************** 2 * 3 * Copyright 2008 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 #include "util/u_memory.h" 29 #include "util/u_math.h" 30 #include "util/u_format.h" 31 #include "draw/draw_context.h" 32 #include "draw/draw_private.h" 33 #include "draw/draw_pt.h" 34 #include "translate/translate.h" 35 #include "translate/translate_cache.h" 36 37 38 struct pt_fetch { 39 struct draw_context *draw; 40 41 struct translate *translate; 42 43 unsigned vertex_size; 44 45 struct translate_cache *cache; 46 }; 47 48 49 /** 50 * Perform the fetch from API vertex elements & vertex buffers, to a 51 * contiguous set of float[4] attributes as required for the 52 * vertex_shader->run_linear() method. 53 * 54 * This is used in all cases except pure passthrough 55 * (draw_pt_fetch_emit.c) which has its own version to translate 56 * directly to hw vertices. 57 * 58 */ 59 void 60 draw_pt_fetch_prepare(struct pt_fetch *fetch, 61 unsigned vs_input_count, 62 unsigned vertex_size, 63 unsigned instance_id_index) 64 { 65 struct draw_context *draw = fetch->draw; 66 unsigned nr_inputs; 67 unsigned i, nr = 0, ei = 0; 68 unsigned dst_offset = 0; 69 unsigned num_extra_inputs = 0; 70 struct translate_key key; 71 72 fetch->vertex_size = vertex_size; 73 74 /* Leave the clipmask/edgeflags/pad/vertex_id untouched 75 */ 76 dst_offset += 1 * sizeof(float); 77 /* Just leave the clip[] and pre_clip_pos[] array untouched. 78 */ 79 dst_offset += 8 * sizeof(float); 80 81 if (instance_id_index != ~0) { 82 num_extra_inputs++; 83 } 84 85 assert(draw->pt.nr_vertex_elements + num_extra_inputs >= vs_input_count); 86 87 nr_inputs = MIN2(vs_input_count, draw->pt.nr_vertex_elements + num_extra_inputs); 88 89 for (i = 0; i < nr_inputs; i++) { 90 if (i == instance_id_index) { 91 key.element[nr].type = TRANSLATE_ELEMENT_INSTANCE_ID; 92 key.element[nr].input_format = PIPE_FORMAT_R32_USCALED; 93 key.element[nr].output_format = PIPE_FORMAT_R32_USCALED; 94 key.element[nr].output_offset = dst_offset; 95 96 dst_offset += sizeof(uint); 97 } else if (util_format_is_pure_sint(draw->pt.vertex_element[i].src_format)) { 98 key.element[nr].type = TRANSLATE_ELEMENT_NORMAL; 99 key.element[nr].input_format = draw->pt.vertex_element[ei].src_format; 100 key.element[nr].input_buffer = draw->pt.vertex_element[ei].vertex_buffer_index; 101 key.element[nr].input_offset = draw->pt.vertex_element[ei].src_offset; 102 key.element[nr].instance_divisor = draw->pt.vertex_element[ei].instance_divisor; 103 key.element[nr].output_format = PIPE_FORMAT_R32G32B32A32_SINT; 104 key.element[nr].output_offset = dst_offset; 105 106 ei++; 107 dst_offset += 4 * sizeof(int); 108 } else if (util_format_is_pure_uint(draw->pt.vertex_element[i].src_format)) { 109 key.element[nr].type = TRANSLATE_ELEMENT_NORMAL; 110 key.element[nr].input_format = draw->pt.vertex_element[ei].src_format; 111 key.element[nr].input_buffer = draw->pt.vertex_element[ei].vertex_buffer_index; 112 key.element[nr].input_offset = draw->pt.vertex_element[ei].src_offset; 113 key.element[nr].instance_divisor = draw->pt.vertex_element[ei].instance_divisor; 114 key.element[nr].output_format = PIPE_FORMAT_R32G32B32A32_UINT; 115 key.element[nr].output_offset = dst_offset; 116 117 ei++; 118 dst_offset += 4 * sizeof(unsigned); 119 } else { 120 key.element[nr].type = TRANSLATE_ELEMENT_NORMAL; 121 key.element[nr].input_format = draw->pt.vertex_element[ei].src_format; 122 key.element[nr].input_buffer = draw->pt.vertex_element[ei].vertex_buffer_index; 123 key.element[nr].input_offset = draw->pt.vertex_element[ei].src_offset; 124 key.element[nr].instance_divisor = draw->pt.vertex_element[ei].instance_divisor; 125 key.element[nr].output_format = PIPE_FORMAT_R32G32B32A32_FLOAT; 126 key.element[nr].output_offset = dst_offset; 127 128 ei++; 129 dst_offset += 4 * sizeof(float); 130 } 131 132 nr++; 133 } 134 135 assert(dst_offset <= vertex_size); 136 137 key.nr_elements = nr; 138 key.output_stride = vertex_size; 139 140 if (!fetch->translate || 141 translate_key_compare(&fetch->translate->key, &key) != 0) 142 { 143 translate_key_sanitize(&key); 144 fetch->translate = translate_cache_find(fetch->cache, &key); 145 } 146 } 147 148 149 void 150 draw_pt_fetch_run(struct pt_fetch *fetch, 151 const unsigned *elts, 152 unsigned count, 153 char *verts) 154 { 155 struct draw_context *draw = fetch->draw; 156 struct translate *translate = fetch->translate; 157 unsigned i; 158 159 for (i = 0; i < draw->pt.nr_vertex_buffers; i++) { 160 translate->set_buffer(translate, 161 i, 162 ((char *)draw->pt.user.vbuffer[i] + 163 draw->pt.vertex_buffer[i].buffer_offset), 164 draw->pt.vertex_buffer[i].stride, 165 draw->pt.max_index); 166 } 167 168 translate->run_elts( translate, 169 elts, 170 count, 171 draw->instance_id, 172 verts ); 173 } 174 175 176 void 177 draw_pt_fetch_run_linear(struct pt_fetch *fetch, 178 unsigned start, 179 unsigned count, 180 char *verts) 181 { 182 struct draw_context *draw = fetch->draw; 183 struct translate *translate = fetch->translate; 184 unsigned i; 185 186 for (i = 0; i < draw->pt.nr_vertex_buffers; i++) { 187 translate->set_buffer(translate, 188 i, 189 ((char *)draw->pt.user.vbuffer[i] + 190 draw->pt.vertex_buffer[i].buffer_offset), 191 draw->pt.vertex_buffer[i].stride, 192 draw->pt.max_index); 193 } 194 195 translate->run( translate, 196 start, 197 count, 198 draw->instance_id, 199 verts ); 200 } 201 202 203 struct pt_fetch * 204 draw_pt_fetch_create(struct draw_context *draw) 205 { 206 struct pt_fetch *fetch = CALLOC_STRUCT(pt_fetch); 207 if (!fetch) 208 return NULL; 209 210 fetch->draw = draw; 211 fetch->cache = translate_cache_create(); 212 if (!fetch->cache) { 213 FREE(fetch); 214 return NULL; 215 } 216 217 return fetch; 218 } 219 220 221 void 222 draw_pt_fetch_destroy(struct pt_fetch *fetch) 223 { 224 if (fetch->cache) 225 translate_cache_destroy(fetch->cache); 226 227 FREE(fetch); 228 } 229
