sp_draw_arrays.c revision 9b21b3c52a8a7d58d08151d1a6bf25c472dec213
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/* Author: 29 * Brian Paul 30 * Keith Whitwell 31 */ 32 33 34#include "pipe/p_defines.h" 35#include "pipe/p_context.h" 36#include "pipe/internal/p_winsys_screen.h" 37#include "pipe/p_inlines.h" 38#include "util/u_prim.h" 39 40#include "sp_context.h" 41#include "sp_query.h" 42#include "sp_state.h" 43 44#include "draw/draw_context.h" 45 46 47 48static void 49softpipe_map_constant_buffers(struct softpipe_context *sp) 50{ 51 struct pipe_winsys *ws = sp->pipe.winsys; 52 uint i, vssize, gssize; 53 54 for (i = 0; i < PIPE_SHADER_TYPES; i++) { 55 if (sp->constants[i].buffer && sp->constants[i].buffer->size) 56 sp->mapped_constants[i] = ws->buffer_map(ws, sp->constants[i].buffer, 57 PIPE_BUFFER_USAGE_CPU_READ); 58 } 59 60 if (sp->constants[PIPE_SHADER_VERTEX].buffer) 61 vssize = sp->constants[PIPE_SHADER_VERTEX].buffer->size; 62 else 63 vssize = 0; 64 65 if (sp->constants[PIPE_SHADER_GEOMETRY].buffer) 66 gssize = sp->constants[PIPE_SHADER_GEOMETRY].buffer->size; 67 else 68 gssize = 0; 69 70 draw_set_mapped_constant_buffer(sp->draw, PIPE_SHADER_VERTEX, 71 sp->mapped_constants[PIPE_SHADER_VERTEX], 72 vssize); 73 draw_set_mapped_constant_buffer(sp->draw, PIPE_SHADER_GEOMETRY, 74 sp->mapped_constants[PIPE_SHADER_GEOMETRY], 75 gssize); 76} 77 78 79static void 80softpipe_unmap_constant_buffers(struct softpipe_context *sp) 81{ 82 struct pipe_winsys *ws = sp->pipe.winsys; 83 uint i; 84 85 /* really need to flush all prims since the vert/frag shaders const buffers 86 * are going away now. 87 */ 88 draw_flush(sp->draw); 89 90 draw_set_mapped_constant_buffer(sp->draw, PIPE_SHADER_VERTEX, NULL, 0); 91 draw_set_mapped_constant_buffer(sp->draw, PIPE_SHADER_GEOMETRY, NULL, 0); 92 93 for (i = 0; i < PIPE_SHADER_TYPES; i++) { 94 if (sp->constants[i].buffer && sp->constants[i].buffer->size) 95 ws->buffer_unmap(ws, sp->constants[i].buffer); 96 sp->mapped_constants[i] = NULL; 97 } 98} 99 100 101/** 102 * Draw vertex arrays, with optional indexing. 103 * Basically, map the vertex buffers (and drawing surfaces), then hand off 104 * the drawing to the 'draw' module. 105 */ 106static boolean 107softpipe_draw_range_elements_instanced(struct pipe_context *pipe, 108 struct pipe_buffer *indexBuffer, 109 unsigned indexSize, 110 unsigned minIndex, 111 unsigned maxIndex, 112 unsigned mode, 113 unsigned start, 114 unsigned count, 115 unsigned startInstance, 116 unsigned instanceCount); 117 118 119boolean 120softpipe_draw_arrays(struct pipe_context *pipe, unsigned mode, 121 unsigned start, unsigned count) 122{ 123 return softpipe_draw_range_elements_instanced(pipe, 124 NULL, 125 0, 126 0, 127 0xffffffff, 128 mode, 129 start, 130 count, 131 0, 132 1); 133} 134 135 136boolean 137softpipe_draw_range_elements(struct pipe_context *pipe, 138 struct pipe_buffer *indexBuffer, 139 unsigned indexSize, 140 unsigned min_index, 141 unsigned max_index, 142 unsigned mode, unsigned start, unsigned count) 143{ 144 return softpipe_draw_range_elements_instanced(pipe, 145 indexBuffer, 146 indexSize, 147 min_index, 148 max_index, 149 mode, 150 start, 151 count, 152 0, 153 1); 154} 155 156 157boolean 158softpipe_draw_elements(struct pipe_context *pipe, 159 struct pipe_buffer *indexBuffer, 160 unsigned indexSize, 161 unsigned mode, unsigned start, unsigned count) 162{ 163 return softpipe_draw_range_elements_instanced(pipe, 164 indexBuffer, 165 indexSize, 166 0, 167 0xffffffff, 168 mode, 169 start, 170 count, 171 0, 172 1); 173} 174 175boolean 176softpipe_draw_arrays_instanced(struct pipe_context *pipe, 177 unsigned mode, 178 unsigned start, 179 unsigned count, 180 unsigned startInstance, 181 unsigned instanceCount) 182{ 183 return softpipe_draw_range_elements_instanced(pipe, 184 NULL, 185 0, 186 0, 187 0xffffffff, 188 mode, 189 start, 190 count, 191 startInstance, 192 instanceCount); 193} 194 195boolean 196softpipe_draw_elements_instanced(struct pipe_context *pipe, 197 struct pipe_buffer *indexBuffer, 198 unsigned indexSize, 199 unsigned mode, 200 unsigned start, 201 unsigned count, 202 unsigned startInstance, 203 unsigned instanceCount) 204{ 205 return softpipe_draw_range_elements_instanced(pipe, 206 indexBuffer, 207 indexSize, 208 0, 209 0xffffffff, 210 mode, 211 start, 212 count, 213 startInstance, 214 instanceCount); 215} 216 217static boolean 218softpipe_draw_range_elements_instanced(struct pipe_context *pipe, 219 struct pipe_buffer *indexBuffer, 220 unsigned indexSize, 221 unsigned minIndex, 222 unsigned maxIndex, 223 unsigned mode, 224 unsigned start, 225 unsigned count, 226 unsigned startInstance, 227 unsigned instanceCount) 228{ 229 struct softpipe_context *sp = softpipe_context(pipe); 230 struct draw_context *draw = sp->draw; 231 unsigned i; 232 233 if (!softpipe_check_render_cond(sp)) 234 return TRUE; 235 236 sp->reduced_api_prim = u_reduced_prim(mode); 237 238 if (sp->dirty) { 239 softpipe_update_derived(sp); 240 } 241 242 softpipe_map_transfers(sp); 243 softpipe_map_constant_buffers(sp); 244 245 /* Map vertex buffers */ 246 for (i = 0; i < sp->num_vertex_buffers; i++) { 247 void *buf; 248 249 buf = pipe_buffer_map(pipe->screen, 250 sp->vertex_buffer[i].buffer, 251 PIPE_BUFFER_USAGE_CPU_READ); 252 draw_set_mapped_vertex_buffer(draw, i, buf); 253 } 254 255 /* Map index buffer, if present */ 256 if (indexBuffer) { 257 void *mapped_indexes; 258 259 mapped_indexes = pipe_buffer_map(pipe->screen, 260 indexBuffer, 261 PIPE_BUFFER_USAGE_CPU_READ); 262 draw_set_mapped_element_buffer_range(draw, 263 indexSize, 264 minIndex, 265 maxIndex, 266 mapped_indexes); 267 } else { 268 /* no index/element buffer */ 269 draw_set_mapped_element_buffer_range(draw, 270 0, 271 start, 272 start + count - 1, 273 NULL); 274 } 275 276 /* draw! */ 277 draw_arrays_instanced(draw, mode, start, count, startInstance, instanceCount); 278 279 /* unmap vertex/index buffers - will cause draw module to flush */ 280 for (i = 0; i < sp->num_vertex_buffers; i++) { 281 draw_set_mapped_vertex_buffer(draw, i, NULL); 282 pipe_buffer_unmap(pipe->screen, sp->vertex_buffer[i].buffer); 283 } 284 if (indexBuffer) { 285 draw_set_mapped_element_buffer(draw, 0, NULL); 286 pipe_buffer_unmap(pipe->screen, indexBuffer); 287 } 288 289 /* Note: leave drawing surfaces mapped */ 290 softpipe_unmap_constant_buffers(sp); 291 292 sp->dirty_render_cache = TRUE; 293 294 return TRUE; 295} 296