1 /********************************************************** 2 * Copyright 2008-2009 VMware, Inc. All rights reserved. 3 * 4 * Permission is hereby granted, free of charge, to any person 5 * obtaining a copy of this software and associated documentation 6 * files (the "Software"), to deal in the Software without 7 * restriction, including without limitation the rights to use, copy, 8 * modify, merge, publish, distribute, sublicense, and/or sell copies 9 * of the Software, and to permit persons to whom the Software is 10 * furnished to do so, subject to the following conditions: 11 * 12 * The above copyright notice and this permission notice shall be 13 * included in all copies or substantial portions of the Software. 14 * 15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, 16 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF 17 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND 18 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS 19 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN 20 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN 21 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE 22 * SOFTWARE. 23 * 24 **********************************************************/ 25 26 #include "draw/draw_vbuf.h" 27 #include "draw/draw_context.h" 28 #include "draw/draw_vertex.h" 29 30 #include "util/u_debug.h" 31 #include "util/u_inlines.h" 32 #include "util/u_math.h" 33 #include "util/u_memory.h" 34 35 #include "svga_context.h" 36 #include "svga_state.h" 37 #include "svga_swtnl.h" 38 39 #include "svga_types.h" 40 #include "svga_reg.h" 41 #include "svga3d_reg.h" 42 #include "svga_draw.h" 43 #include "svga_shader.h" 44 #include "svga_swtnl_private.h" 45 46 47 static const struct vertex_info * 48 svga_vbuf_render_get_vertex_info( struct vbuf_render *render ) 49 { 50 struct svga_vbuf_render *svga_render = svga_vbuf_render(render); 51 struct svga_context *svga = svga_render->svga; 52 53 svga_swtnl_update_vdecl(svga); 54 55 return &svga_render->vertex_info; 56 } 57 58 59 static boolean 60 svga_vbuf_render_allocate_vertices( struct vbuf_render *render, 61 ushort vertex_size, 62 ushort nr_vertices ) 63 { 64 struct svga_vbuf_render *svga_render = svga_vbuf_render(render); 65 struct svga_context *svga = svga_render->svga; 66 struct pipe_screen *screen = svga->pipe.screen; 67 size_t size = (size_t)nr_vertices * (size_t)vertex_size; 68 boolean new_vbuf = FALSE; 69 boolean new_ibuf = FALSE; 70 71 SVGA_STATS_TIME_PUSH(svga_sws(svga), 72 SVGA_STATS_TIME_VBUFRENDERALLOCVERT); 73 74 if (svga_render->vertex_size != vertex_size) 75 svga->swtnl.new_vdecl = TRUE; 76 svga_render->vertex_size = (size_t)vertex_size; 77 78 if (svga->swtnl.new_vbuf) 79 new_ibuf = new_vbuf = TRUE; 80 svga->swtnl.new_vbuf = FALSE; 81 82 if (svga_render->vbuf_size < svga_render->vbuf_offset + svga_render->vbuf_used + size) 83 new_vbuf = TRUE; 84 85 if (new_vbuf) 86 pipe_resource_reference(&svga_render->vbuf, NULL); 87 if (new_ibuf) 88 pipe_resource_reference(&svga_render->ibuf, NULL); 89 90 if (!svga_render->vbuf) { 91 svga_render->vbuf_size = MAX2(size, svga_render->vbuf_alloc_size); 92 svga_render->vbuf = pipe_buffer_create(screen, 93 PIPE_BIND_VERTEX_BUFFER, 94 PIPE_USAGE_STREAM, 95 svga_render->vbuf_size); 96 if(!svga_render->vbuf) { 97 svga_context_flush(svga, NULL); 98 assert(!svga_render->vbuf); 99 svga_render->vbuf = pipe_buffer_create(screen, 100 PIPE_BIND_VERTEX_BUFFER, 101 PIPE_USAGE_STREAM, 102 svga_render->vbuf_size); 103 /* The buffer allocation may fail if we run out of memory. 104 * The draw module's vbuf code should handle that without crashing. 105 */ 106 } 107 108 svga->swtnl.new_vdecl = TRUE; 109 svga_render->vbuf_offset = 0; 110 } else { 111 svga_render->vbuf_offset += svga_render->vbuf_used; 112 } 113 114 svga_render->vbuf_used = 0; 115 116 if (svga->swtnl.new_vdecl) 117 svga_render->vdecl_offset = svga_render->vbuf_offset; 118 119 SVGA_STATS_TIME_POP(svga_sws(svga)); 120 121 return TRUE; 122 } 123 124 static void * 125 svga_vbuf_render_map_vertices( struct vbuf_render *render ) 126 { 127 struct svga_vbuf_render *svga_render = svga_vbuf_render(render); 128 struct svga_context *svga = svga_render->svga; 129 void * retPtr = NULL; 130 131 SVGA_STATS_TIME_PUSH(svga_sws(svga), 132 SVGA_STATS_TIME_VBUFRENDERMAPVERT); 133 134 if (svga_render->vbuf) { 135 char *ptr = (char*)pipe_buffer_map(&svga->pipe, 136 svga_render->vbuf, 137 PIPE_TRANSFER_WRITE | 138 PIPE_TRANSFER_FLUSH_EXPLICIT | 139 PIPE_TRANSFER_DISCARD_RANGE | 140 PIPE_TRANSFER_UNSYNCHRONIZED, 141 &svga_render->vbuf_transfer); 142 if (ptr) { 143 svga_render->vbuf_ptr = ptr; 144 retPtr = ptr + svga_render->vbuf_offset; 145 } 146 else { 147 svga_render->vbuf_ptr = NULL; 148 svga_render->vbuf_transfer = NULL; 149 retPtr = NULL; 150 } 151 } 152 else { 153 /* we probably ran out of memory when allocating the vertex buffer */ 154 retPtr = NULL; 155 } 156 157 SVGA_STATS_TIME_POP(svga_sws(svga)); 158 return retPtr; 159 } 160 161 static void 162 svga_vbuf_render_unmap_vertices( struct vbuf_render *render, 163 ushort min_index, 164 ushort max_index ) 165 { 166 struct svga_vbuf_render *svga_render = svga_vbuf_render(render); 167 struct svga_context *svga = svga_render->svga; 168 unsigned offset, length; 169 size_t used = svga_render->vertex_size * ((size_t)max_index + 1); 170 171 SVGA_STATS_TIME_PUSH(svga_sws(svga), 172 SVGA_STATS_TIME_VBUFRENDERUNMAPVERT); 173 174 offset = svga_render->vbuf_offset + svga_render->vertex_size * min_index; 175 length = svga_render->vertex_size * (max_index + 1 - min_index); 176 177 if (0) { 178 /* dump vertex data */ 179 const float *f = (const float *) ((char *) svga_render->vbuf_ptr + 180 svga_render->vbuf_offset); 181 unsigned i; 182 debug_printf("swtnl vertex data:\n"); 183 for (i = 0; i < length / 4; i += 4) { 184 debug_printf("%u: %f %f %f %f\n", i, f[i], f[i+1], f[i+2], f[i+3]); 185 } 186 } 187 188 pipe_buffer_flush_mapped_range(&svga->pipe, 189 svga_render->vbuf_transfer, 190 offset, length); 191 pipe_buffer_unmap(&svga->pipe, svga_render->vbuf_transfer); 192 svga_render->min_index = min_index; 193 svga_render->max_index = max_index; 194 svga_render->vbuf_used = MAX2(svga_render->vbuf_used, used); 195 196 SVGA_STATS_TIME_POP(svga_sws(svga)); 197 } 198 199 static void 200 svga_vbuf_render_set_primitive( struct vbuf_render *render, 201 enum pipe_prim_type prim ) 202 { 203 struct svga_vbuf_render *svga_render = svga_vbuf_render(render); 204 svga_render->prim = prim; 205 } 206 207 static void 208 svga_vbuf_submit_state( struct svga_vbuf_render *svga_render ) 209 { 210 struct svga_context *svga = svga_render->svga; 211 SVGA3dVertexDecl vdecl[PIPE_MAX_ATTRIBS]; 212 enum pipe_error ret; 213 unsigned i; 214 static const unsigned zero[PIPE_MAX_ATTRIBS] = {0}; 215 216 /* if the vdecl or vbuf hasn't changed do nothing */ 217 if (!svga->swtnl.new_vdecl) 218 return; 219 220 SVGA_STATS_TIME_PUSH(svga_sws(svga), 221 SVGA_STATS_TIME_VBUFSUBMITSTATE); 222 223 memcpy(vdecl, svga_render->vdecl, sizeof(vdecl)); 224 225 /* flush the hw state */ 226 ret = svga_hwtnl_flush(svga->hwtnl); 227 if (ret != PIPE_OK) { 228 svga_context_flush(svga, NULL); 229 ret = svga_hwtnl_flush(svga->hwtnl); 230 /* if we hit this path we might become synced with hw */ 231 svga->swtnl.new_vbuf = TRUE; 232 assert(ret == PIPE_OK); 233 } 234 235 for (i = 0; i < svga_render->vdecl_count; i++) { 236 vdecl[i].array.offset += svga_render->vdecl_offset; 237 } 238 239 svga_hwtnl_vertex_decls(svga->hwtnl, 240 svga_render->vdecl_count, 241 vdecl, 242 zero, 243 svga_render->layout_id); 244 245 /* Specify the vertex buffer (there's only ever one) */ 246 { 247 struct pipe_vertex_buffer vb; 248 vb.buffer = svga_render->vbuf; 249 vb.buffer_offset = svga_render->vdecl_offset; 250 vb.stride = vdecl[0].array.stride; 251 vb.user_buffer = NULL; 252 svga_hwtnl_vertex_buffers(svga->hwtnl, 1, &vb); 253 } 254 255 /* We have already taken care of flatshading, so let the hwtnl 256 * module use whatever is most convenient: 257 */ 258 if (svga->state.sw.need_pipeline) { 259 svga_hwtnl_set_flatshade(svga->hwtnl, FALSE, FALSE); 260 svga_hwtnl_set_fillmode(svga->hwtnl, PIPE_POLYGON_MODE_FILL); 261 } 262 else { 263 svga_hwtnl_set_flatshade( svga->hwtnl, 264 svga->curr.rast->templ.flatshade || 265 svga->state.hw_draw.fs->uses_flat_interp, 266 svga->curr.rast->templ.flatshade_first ); 267 268 svga_hwtnl_set_fillmode(svga->hwtnl, svga->curr.rast->hw_fillmode); 269 } 270 271 svga->swtnl.new_vdecl = FALSE; 272 SVGA_STATS_TIME_POP(svga_sws(svga)); 273 } 274 275 static void 276 svga_vbuf_render_draw_arrays( struct vbuf_render *render, 277 unsigned start, uint nr ) 278 { 279 struct svga_vbuf_render *svga_render = svga_vbuf_render(render); 280 struct svga_context *svga = svga_render->svga; 281 unsigned bias = (svga_render->vbuf_offset - svga_render->vdecl_offset) / svga_render->vertex_size; 282 enum pipe_error ret = PIPE_OK; 283 /* instancing will already have been resolved at this point by 'draw' */ 284 const unsigned start_instance = 0; 285 const unsigned instance_count = 1; 286 287 SVGA_STATS_TIME_PUSH(svga_sws(svga), SVGA_STATS_TIME_VBUFDRAWARRAYS); 288 289 /* off to hardware */ 290 svga_vbuf_submit_state(svga_render); 291 292 /* Need to call update_state() again as the draw module may have 293 * altered some of our state behind our backs. Testcase: 294 * redbook/polys.c 295 */ 296 svga_update_state_retry( svga, SVGA_STATE_HW_DRAW ); 297 298 ret = svga_hwtnl_draw_arrays(svga->hwtnl, svga_render->prim, start + bias, nr, 299 start_instance, instance_count); 300 if (ret != PIPE_OK) { 301 svga_context_flush(svga, NULL); 302 ret = svga_hwtnl_draw_arrays(svga->hwtnl, svga_render->prim, 303 start + bias, nr, 304 start_instance, instance_count); 305 svga->swtnl.new_vbuf = TRUE; 306 assert(ret == PIPE_OK); 307 } 308 SVGA_STATS_TIME_POP(svga_sws(svga)); 309 } 310 311 312 static void 313 svga_vbuf_render_draw_elements( struct vbuf_render *render, 314 const ushort *indices, 315 uint nr_indices) 316 { 317 struct svga_vbuf_render *svga_render = svga_vbuf_render(render); 318 struct svga_context *svga = svga_render->svga; 319 struct pipe_screen *screen = svga->pipe.screen; 320 int bias = (svga_render->vbuf_offset - svga_render->vdecl_offset) / svga_render->vertex_size; 321 boolean ret; 322 size_t size = 2 * nr_indices; 323 /* instancing will already have been resolved at this point by 'draw' */ 324 const unsigned start_instance = 0; 325 const unsigned instance_count = 1; 326 327 assert(( svga_render->vbuf_offset - svga_render->vdecl_offset) % svga_render->vertex_size == 0); 328 329 SVGA_STATS_TIME_PUSH(svga_sws(svga), SVGA_STATS_TIME_VBUFDRAWELEMENTS); 330 331 if (svga_render->ibuf_size < svga_render->ibuf_offset + size) 332 pipe_resource_reference(&svga_render->ibuf, NULL); 333 334 if (!svga_render->ibuf) { 335 svga_render->ibuf_size = MAX2(size, svga_render->ibuf_alloc_size); 336 svga_render->ibuf = pipe_buffer_create(screen, 337 PIPE_BIND_INDEX_BUFFER, 338 PIPE_USAGE_STREAM, 339 svga_render->ibuf_size); 340 svga_render->ibuf_offset = 0; 341 } 342 343 pipe_buffer_write_nooverlap(&svga->pipe, svga_render->ibuf, 344 svga_render->ibuf_offset, 2 * nr_indices, indices); 345 346 /* off to hardware */ 347 svga_vbuf_submit_state(svga_render); 348 349 /* Need to call update_state() again as the draw module may have 350 * altered some of our state behind our backs. Testcase: 351 * redbook/polys.c 352 */ 353 svga_update_state_retry( svga, SVGA_STATE_HW_DRAW ); 354 355 ret = svga_hwtnl_draw_range_elements(svga->hwtnl, 356 svga_render->ibuf, 357 2, 358 bias, 359 svga_render->min_index, 360 svga_render->max_index, 361 svga_render->prim, 362 svga_render->ibuf_offset / 2, nr_indices, 363 start_instance, instance_count); 364 if(ret != PIPE_OK) { 365 svga_context_flush(svga, NULL); 366 ret = svga_hwtnl_draw_range_elements(svga->hwtnl, 367 svga_render->ibuf, 368 2, 369 bias, 370 svga_render->min_index, 371 svga_render->max_index, 372 svga_render->prim, 373 svga_render->ibuf_offset / 2, 374 nr_indices, 375 start_instance, instance_count); 376 svga->swtnl.new_vbuf = TRUE; 377 assert(ret == PIPE_OK); 378 } 379 svga_render->ibuf_offset += size; 380 381 SVGA_STATS_TIME_POP(svga_sws(svga)); 382 } 383 384 385 static void 386 svga_vbuf_render_release_vertices( struct vbuf_render *render ) 387 { 388 389 } 390 391 392 static void 393 svga_vbuf_render_destroy( struct vbuf_render *render ) 394 { 395 struct svga_vbuf_render *svga_render = svga_vbuf_render(render); 396 397 pipe_resource_reference(&svga_render->vbuf, NULL); 398 pipe_resource_reference(&svga_render->ibuf, NULL); 399 FREE(svga_render); 400 } 401 402 403 /** 404 * Create a new primitive render. 405 */ 406 struct vbuf_render * 407 svga_vbuf_render_create( struct svga_context *svga ) 408 { 409 struct svga_vbuf_render *svga_render = CALLOC_STRUCT(svga_vbuf_render); 410 411 svga_render->svga = svga; 412 svga_render->ibuf_size = 0; 413 svga_render->vbuf_size = 0; 414 svga_render->ibuf_alloc_size = 4*1024; 415 svga_render->vbuf_alloc_size = 64*1024; 416 svga_render->layout_id = SVGA3D_INVALID_ID; 417 svga_render->base.max_vertex_buffer_bytes = 64*1024/10; 418 svga_render->base.max_indices = 65536; 419 svga_render->base.get_vertex_info = svga_vbuf_render_get_vertex_info; 420 svga_render->base.allocate_vertices = svga_vbuf_render_allocate_vertices; 421 svga_render->base.map_vertices = svga_vbuf_render_map_vertices; 422 svga_render->base.unmap_vertices = svga_vbuf_render_unmap_vertices; 423 svga_render->base.set_primitive = svga_vbuf_render_set_primitive; 424 svga_render->base.draw_elements = svga_vbuf_render_draw_elements; 425 svga_render->base.draw_arrays = svga_vbuf_render_draw_arrays; 426 svga_render->base.release_vertices = svga_vbuf_render_release_vertices; 427 svga_render->base.destroy = svga_vbuf_render_destroy; 428 429 return &svga_render->base; 430 } 431
