1 /************************************************************************** 2 * 3 * Copyright 2008 VMware, Inc. 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 VMWARE 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, 75 * clip[] and whatever else in the header untouched. 76 */ 77 dst_offset = offsetof(struct vertex_header, data); 78 79 if (instance_id_index != ~0) { 80 num_extra_inputs++; 81 } 82 83 assert(draw->pt.nr_vertex_elements + num_extra_inputs >= vs_input_count); 84 85 nr_inputs = MIN2(vs_input_count, draw->pt.nr_vertex_elements + num_extra_inputs); 86 87 for (i = 0; i < nr_inputs; i++) { 88 if (i == instance_id_index) { 89 key.element[nr].type = TRANSLATE_ELEMENT_INSTANCE_ID; 90 key.element[nr].input_format = PIPE_FORMAT_R32_USCALED; 91 key.element[nr].output_format = PIPE_FORMAT_R32_USCALED; 92 key.element[nr].output_offset = dst_offset; 93 94 dst_offset += sizeof(uint); 95 } else if (util_format_is_pure_sint(draw->pt.vertex_element[i].src_format)) { 96 key.element[nr].type = TRANSLATE_ELEMENT_NORMAL; 97 key.element[nr].input_format = draw->pt.vertex_element[ei].src_format; 98 key.element[nr].input_buffer = draw->pt.vertex_element[ei].vertex_buffer_index; 99 key.element[nr].input_offset = draw->pt.vertex_element[ei].src_offset; 100 key.element[nr].instance_divisor = draw->pt.vertex_element[ei].instance_divisor; 101 key.element[nr].output_format = PIPE_FORMAT_R32G32B32A32_SINT; 102 key.element[nr].output_offset = dst_offset; 103 104 ei++; 105 dst_offset += 4 * sizeof(int); 106 } else if (util_format_is_pure_uint(draw->pt.vertex_element[i].src_format)) { 107 key.element[nr].type = TRANSLATE_ELEMENT_NORMAL; 108 key.element[nr].input_format = draw->pt.vertex_element[ei].src_format; 109 key.element[nr].input_buffer = draw->pt.vertex_element[ei].vertex_buffer_index; 110 key.element[nr].input_offset = draw->pt.vertex_element[ei].src_offset; 111 key.element[nr].instance_divisor = draw->pt.vertex_element[ei].instance_divisor; 112 key.element[nr].output_format = PIPE_FORMAT_R32G32B32A32_UINT; 113 key.element[nr].output_offset = dst_offset; 114 115 ei++; 116 dst_offset += 4 * sizeof(unsigned); 117 } else { 118 key.element[nr].type = TRANSLATE_ELEMENT_NORMAL; 119 key.element[nr].input_format = draw->pt.vertex_element[ei].src_format; 120 key.element[nr].input_buffer = draw->pt.vertex_element[ei].vertex_buffer_index; 121 key.element[nr].input_offset = draw->pt.vertex_element[ei].src_offset; 122 key.element[nr].instance_divisor = draw->pt.vertex_element[ei].instance_divisor; 123 key.element[nr].output_format = PIPE_FORMAT_R32G32B32A32_FLOAT; 124 key.element[nr].output_offset = dst_offset; 125 126 ei++; 127 dst_offset += 4 * sizeof(float); 128 } 129 130 nr++; 131 } 132 133 assert(dst_offset <= vertex_size); 134 135 key.nr_elements = nr; 136 key.output_stride = vertex_size; 137 138 if (!fetch->translate || 139 translate_key_compare(&fetch->translate->key, &key) != 0) 140 { 141 translate_key_sanitize(&key); 142 fetch->translate = translate_cache_find(fetch->cache, &key); 143 } 144 } 145 146 147 void 148 draw_pt_fetch_run(struct pt_fetch *fetch, 149 const unsigned *elts, 150 unsigned count, 151 char *verts) 152 { 153 struct draw_context *draw = fetch->draw; 154 struct translate *translate = fetch->translate; 155 unsigned i; 156 157 for (i = 0; i < draw->pt.nr_vertex_buffers; i++) { 158 translate->set_buffer(translate, 159 i, 160 ((char *)draw->pt.user.vbuffer[i].map + 161 draw->pt.vertex_buffer[i].buffer_offset), 162 draw->pt.vertex_buffer[i].stride, 163 draw->pt.max_index); 164 } 165 166 translate->run_elts( translate, 167 elts, 168 count, 169 draw->start_instance, 170 draw->instance_id, 171 verts ); 172 } 173 174 175 void 176 draw_pt_fetch_run_linear(struct pt_fetch *fetch, 177 unsigned start, 178 unsigned count, 179 char *verts) 180 { 181 struct draw_context *draw = fetch->draw; 182 struct translate *translate = fetch->translate; 183 unsigned i; 184 185 for (i = 0; i < draw->pt.nr_vertex_buffers; i++) { 186 translate->set_buffer(translate, 187 i, 188 ((char *)draw->pt.user.vbuffer[i].map + 189 draw->pt.vertex_buffer[i].buffer_offset), 190 draw->pt.vertex_buffer[i].stride, 191 draw->pt.max_index); 192 } 193 194 translate->run( translate, 195 start, 196 count, 197 draw->start_instance, 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
