lp_screen.c revision cab2fed135bc1edf7b65ddca3236020638427061
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 29#include "util/u_memory.h" 30#include "util/u_math.h" 31#include "util/u_cpu_detect.h" 32#include "util/u_format.h" 33#include "util/u_string.h" 34#include "util/u_format_s3tc.h" 35#include "pipe/p_defines.h" 36#include "pipe/p_screen.h" 37#include "draw/draw_context.h" 38 39#include "lp_texture.h" 40#include "lp_fence.h" 41#include "lp_jit.h" 42#include "lp_screen.h" 43#include "lp_context.h" 44#include "lp_debug.h" 45#include "lp_public.h" 46#include "lp_limits.h" 47#include "lp_rast.h" 48 49#include "state_tracker/sw_winsys.h" 50 51#ifdef DEBUG 52int LP_DEBUG = 0; 53 54static const struct debug_named_value lp_debug_flags[] = { 55 { "pipe", DEBUG_PIPE, NULL }, 56 { "tgsi", DEBUG_TGSI, NULL }, 57 { "tex", DEBUG_TEX, NULL }, 58 { "setup", DEBUG_SETUP, NULL }, 59 { "rast", DEBUG_RAST, NULL }, 60 { "query", DEBUG_QUERY, NULL }, 61 { "screen", DEBUG_SCREEN, NULL }, 62 { "show_tiles", DEBUG_SHOW_TILES, NULL }, 63 { "show_subtiles", DEBUG_SHOW_SUBTILES, NULL }, 64 { "counters", DEBUG_COUNTERS, NULL }, 65 { "scene", DEBUG_SCENE, NULL }, 66 { "fence", DEBUG_FENCE, NULL }, 67 { "mem", DEBUG_MEM, NULL }, 68 { "fs", DEBUG_FS, NULL }, 69 DEBUG_NAMED_VALUE_END 70}; 71#endif 72 73int LP_PERF = 0; 74static const struct debug_named_value lp_perf_flags[] = { 75 { "texmem", PERF_TEX_MEM, NULL }, 76 { "no_mipmap", PERF_NO_MIPMAPS, NULL }, 77 { "no_linear", PERF_NO_LINEAR, NULL }, 78 { "no_mip_linear", PERF_NO_MIP_LINEAR, NULL }, 79 { "no_tex", PERF_NO_TEX, NULL }, 80 { "no_blend", PERF_NO_BLEND, NULL }, 81 { "no_depth", PERF_NO_DEPTH, NULL }, 82 { "no_alphatest", PERF_NO_ALPHATEST, NULL }, 83 DEBUG_NAMED_VALUE_END 84}; 85 86 87static const char * 88llvmpipe_get_vendor(struct pipe_screen *screen) 89{ 90 return "VMware, Inc."; 91} 92 93 94static const char * 95llvmpipe_get_name(struct pipe_screen *screen) 96{ 97 static char buf[100]; 98 util_snprintf(buf, sizeof(buf), "llvmpipe (LLVM 0x%x)", HAVE_LLVM); 99 return buf; 100} 101 102 103static int 104llvmpipe_get_param(struct pipe_screen *screen, enum pipe_cap param) 105{ 106 switch (param) { 107 case PIPE_CAP_MAX_COMBINED_SAMPLERS: 108 return 2 * PIPE_MAX_SAMPLERS; /* VS + FS samplers */ 109 case PIPE_CAP_NPOT_TEXTURES: 110 return 1; 111 case PIPE_CAP_TWO_SIDED_STENCIL: 112 return 1; 113 case PIPE_CAP_SM3: 114 return 1; 115 case PIPE_CAP_MAX_DUAL_SOURCE_RENDER_TARGETS: 116 return 0; 117 case PIPE_CAP_MAX_STREAM_OUTPUT_BUFFERS: 118 return 0; 119 case PIPE_CAP_ANISOTROPIC_FILTER: 120 return 0; 121 case PIPE_CAP_POINT_SPRITE: 122 return 1; 123 case PIPE_CAP_MAX_RENDER_TARGETS: 124 return PIPE_MAX_COLOR_BUFS; 125 case PIPE_CAP_OCCLUSION_QUERY: 126 return 1; 127 case PIPE_CAP_TIMER_QUERY: 128 return 0; 129 case PIPE_CAP_TEXTURE_MIRROR_CLAMP: 130 return 1; 131 case PIPE_CAP_TEXTURE_SHADOW_MAP: 132 return 1; 133 case PIPE_CAP_TEXTURE_SWIZZLE: 134 return 1; 135 case PIPE_CAP_MAX_TEXTURE_2D_LEVELS: 136 return LP_MAX_TEXTURE_2D_LEVELS; 137 case PIPE_CAP_MAX_TEXTURE_3D_LEVELS: 138 return LP_MAX_TEXTURE_3D_LEVELS; 139 case PIPE_CAP_MAX_TEXTURE_CUBE_LEVELS: 140 return LP_MAX_TEXTURE_2D_LEVELS; 141 case PIPE_CAP_BLEND_EQUATION_SEPARATE: 142 return 1; 143 case PIPE_CAP_INDEP_BLEND_ENABLE: 144 return 1; 145 case PIPE_CAP_INDEP_BLEND_FUNC: 146 return 1; 147 case PIPE_CAP_TGSI_FS_COORD_ORIGIN_UPPER_LEFT: 148 case PIPE_CAP_TGSI_FS_COORD_PIXEL_CENTER_INTEGER: 149 return 1; 150 case PIPE_CAP_TGSI_FS_COORD_ORIGIN_LOWER_LEFT: 151 case PIPE_CAP_TGSI_FS_COORD_PIXEL_CENTER_HALF_INTEGER: 152 return 0; 153 case PIPE_CAP_PRIMITIVE_RESTART: 154 return 1; 155 case PIPE_CAP_DEPTHSTENCIL_CLEAR_SEPARATE: 156 return 1; 157 case PIPE_CAP_MAX_TEXTURE_ARRAY_LAYERS: 158 return 0; 159 case PIPE_CAP_DEPTH_CLIP_DISABLE: 160 return 0; 161 case PIPE_CAP_SHADER_STENCIL_EXPORT: 162 return 0; 163 case PIPE_CAP_TGSI_INSTANCEID: 164 case PIPE_CAP_VERTEX_ELEMENT_INSTANCE_DIVISOR: 165 return 1; 166 case PIPE_CAP_FRAGMENT_COLOR_CLAMPED: 167 return 0; 168 case PIPE_CAP_MIXED_COLORBUFFER_FORMATS: 169 return 1; 170 case PIPE_CAP_SEAMLESS_CUBE_MAP: 171 case PIPE_CAP_SEAMLESS_CUBE_MAP_PER_TEXTURE: 172 return 0; 173 case PIPE_CAP_SCALED_RESOLVE: 174 return 0; 175 case PIPE_CAP_MIN_TEXEL_OFFSET: 176 case PIPE_CAP_MAX_TEXEL_OFFSET: 177 return 0; 178 case PIPE_CAP_CONDITIONAL_RENDER: 179 return 1; 180 case PIPE_CAP_TEXTURE_BARRIER: 181 return 0; 182 case PIPE_CAP_MAX_STREAM_OUTPUT_SEPARATE_COMPONENTS: 183 case PIPE_CAP_MAX_STREAM_OUTPUT_INTERLEAVED_COMPONENTS: 184 case PIPE_CAP_STREAM_OUTPUT_PAUSE_RESUME: 185 return 0; 186 case PIPE_CAP_TGSI_CAN_COMPACT_VARYINGS: 187 case PIPE_CAP_TGSI_CAN_COMPACT_CONSTANTS: 188 return 0; 189 case PIPE_CAP_VERTEX_COLOR_UNCLAMPED: 190 case PIPE_CAP_VERTEX_COLOR_CLAMPED: 191 return 0; 192 case PIPE_CAP_GLSL_FEATURE_LEVEL: 193 return 120; 194 case PIPE_CAP_QUADS_FOLLOW_PROVOKING_VERTEX_CONVENTION: 195 return 0; 196 case PIPE_CAP_COMPUTE: 197 return 0; 198 case PIPE_CAP_USER_VERTEX_BUFFERS: 199 case PIPE_CAP_USER_INDEX_BUFFERS: 200 case PIPE_CAP_USER_CONSTANT_BUFFERS: 201 return 1; 202 case PIPE_CAP_VERTEX_BUFFER_OFFSET_4BYTE_ALIGNED_ONLY: 203 case PIPE_CAP_VERTEX_BUFFER_STRIDE_4BYTE_ALIGNED_ONLY: 204 case PIPE_CAP_VERTEX_ELEMENT_SRC_OFFSET_4BYTE_ALIGNED_ONLY: 205 return 0; 206 207 case PIPE_CAP_CONSTANT_BUFFER_OFFSET_ALIGNMENT: 208 return 16; 209 case PIPE_CAP_START_INSTANCE: 210 case PIPE_CAP_QUERY_TIMESTAMP: 211 return 0; 212 } 213 /* should only get here on unhandled cases */ 214 debug_printf("Unexpected PIPE_CAP %d query\n", param); 215 return 0; 216} 217 218static int 219llvmpipe_get_shader_param(struct pipe_screen *screen, unsigned shader, enum pipe_shader_cap param) 220{ 221 switch(shader) 222 { 223 case PIPE_SHADER_FRAGMENT: 224 switch (param) { 225 default: 226 return gallivm_get_shader_param(param); 227 } 228 case PIPE_SHADER_VERTEX: 229 case PIPE_SHADER_GEOMETRY: 230 switch (param) { 231 case PIPE_SHADER_CAP_MAX_TEXTURE_SAMPLERS: 232 /* At this time, the draw module and llvmpipe driver only 233 * support vertex shader texture lookups when LLVM is enabled in 234 * the draw module. 235 */ 236 if (debug_get_bool_option("DRAW_USE_LLVM", TRUE)) 237 return PIPE_MAX_SAMPLERS; 238 else 239 return 0; 240 default: 241 return draw_get_shader_param(shader, param); 242 } 243 default: 244 return 0; 245 } 246} 247 248static float 249llvmpipe_get_paramf(struct pipe_screen *screen, enum pipe_capf param) 250{ 251 switch (param) { 252 case PIPE_CAPF_MAX_LINE_WIDTH: 253 /* fall-through */ 254 case PIPE_CAPF_MAX_LINE_WIDTH_AA: 255 return 255.0; /* arbitrary */ 256 case PIPE_CAPF_MAX_POINT_WIDTH: 257 /* fall-through */ 258 case PIPE_CAPF_MAX_POINT_WIDTH_AA: 259 return 255.0; /* arbitrary */ 260 case PIPE_CAPF_MAX_TEXTURE_ANISOTROPY: 261 return 16.0; /* not actually signficant at this time */ 262 case PIPE_CAPF_MAX_TEXTURE_LOD_BIAS: 263 return 16.0; /* arbitrary */ 264 case PIPE_CAPF_GUARD_BAND_LEFT: 265 case PIPE_CAPF_GUARD_BAND_TOP: 266 case PIPE_CAPF_GUARD_BAND_RIGHT: 267 case PIPE_CAPF_GUARD_BAND_BOTTOM: 268 return 0.0; 269 } 270 /* should only get here on unhandled cases */ 271 debug_printf("Unexpected PIPE_CAP %d query\n", param); 272 return 0.0; 273} 274 275 276/** 277 * Query format support for creating a texture, drawing surface, etc. 278 * \param format the format to test 279 * \param type one of PIPE_TEXTURE, PIPE_SURFACE 280 */ 281static boolean 282llvmpipe_is_format_supported( struct pipe_screen *_screen, 283 enum pipe_format format, 284 enum pipe_texture_target target, 285 unsigned sample_count, 286 unsigned bind) 287{ 288 struct llvmpipe_screen *screen = llvmpipe_screen(_screen); 289 struct sw_winsys *winsys = screen->winsys; 290 const struct util_format_description *format_desc; 291 292 format_desc = util_format_description(format); 293 if (!format_desc) 294 return FALSE; 295 296 assert(target == PIPE_BUFFER || 297 target == PIPE_TEXTURE_1D || 298 target == PIPE_TEXTURE_2D || 299 target == PIPE_TEXTURE_RECT || 300 target == PIPE_TEXTURE_3D || 301 target == PIPE_TEXTURE_CUBE); 302 303 if (sample_count > 1) 304 return FALSE; 305 306 if (format_desc->format == PIPE_FORMAT_R11G11B10_FLOAT || 307 format_desc->format == PIPE_FORMAT_R9G9B9E5_FLOAT) 308 return TRUE; 309 310 if (bind & PIPE_BIND_RENDER_TARGET) { 311 if (format_desc->colorspace == UTIL_FORMAT_COLORSPACE_ZS || 312 format_desc->colorspace == UTIL_FORMAT_COLORSPACE_SRGB) 313 return FALSE; 314 315 if (format_desc->layout != UTIL_FORMAT_LAYOUT_PLAIN) 316 return FALSE; 317 318 if (format_desc->block.width != 1 || 319 format_desc->block.height != 1) 320 return FALSE; 321 } 322 323 if (bind & PIPE_BIND_DISPLAY_TARGET) { 324 if(!winsys->is_displaytarget_format_supported(winsys, bind, format)) 325 return FALSE; 326 } 327 328 if (bind & PIPE_BIND_DEPTH_STENCIL) { 329 if (format_desc->layout != UTIL_FORMAT_LAYOUT_PLAIN) 330 return FALSE; 331 332 if (format_desc->colorspace != UTIL_FORMAT_COLORSPACE_ZS) 333 return FALSE; 334 335 /* FIXME: Temporary restriction. See lp_state_fs.c. */ 336 if (format_desc->block.bits != 32) 337 return FALSE; 338 } 339 340 if (format_desc->layout == UTIL_FORMAT_LAYOUT_S3TC) { 341 return util_format_s3tc_enabled; 342 } 343 344 /* 345 * Everything can be supported by u_format. 346 */ 347 348 if (format_desc->colorspace != UTIL_FORMAT_COLORSPACE_ZS && 349 !format_desc->fetch_rgba_float) { 350 return FALSE; 351 } 352 353 return TRUE; 354} 355 356 357 358 359static void 360llvmpipe_flush_frontbuffer(struct pipe_screen *_screen, 361 struct pipe_resource *resource, 362 unsigned level, unsigned layer, 363 void *context_private) 364{ 365 struct llvmpipe_screen *screen = llvmpipe_screen(_screen); 366 struct sw_winsys *winsys = screen->winsys; 367 struct llvmpipe_resource *texture = llvmpipe_resource(resource); 368 369 assert(texture->dt); 370 if (texture->dt) 371 winsys->displaytarget_display(winsys, texture->dt, context_private); 372} 373 374 375static void 376llvmpipe_destroy_screen( struct pipe_screen *_screen ) 377{ 378 struct llvmpipe_screen *screen = llvmpipe_screen(_screen); 379 struct sw_winsys *winsys = screen->winsys; 380 381 if (screen->rast) 382 lp_rast_destroy(screen->rast); 383 384 lp_jit_screen_cleanup(screen); 385 386 if(winsys->destroy) 387 winsys->destroy(winsys); 388 389 pipe_mutex_destroy(screen->rast_mutex); 390 391 FREE(screen); 392} 393 394 395 396 397/** 398 * Fence reference counting. 399 */ 400static void 401llvmpipe_fence_reference(struct pipe_screen *screen, 402 struct pipe_fence_handle **ptr, 403 struct pipe_fence_handle *fence) 404{ 405 struct lp_fence **old = (struct lp_fence **) ptr; 406 struct lp_fence *f = (struct lp_fence *) fence; 407 408 lp_fence_reference(old, f); 409} 410 411 412/** 413 * Has the fence been executed/finished? 414 */ 415static boolean 416llvmpipe_fence_signalled(struct pipe_screen *screen, 417 struct pipe_fence_handle *fence) 418{ 419 struct lp_fence *f = (struct lp_fence *) fence; 420 return lp_fence_signalled(f); 421} 422 423 424/** 425 * Wait for the fence to finish. 426 */ 427static boolean 428llvmpipe_fence_finish(struct pipe_screen *screen, 429 struct pipe_fence_handle *fence_handle, 430 uint64_t timeout) 431{ 432 struct lp_fence *f = (struct lp_fence *) fence_handle; 433 434 lp_fence_wait(f); 435 return TRUE; 436} 437 438 439 440/** 441 * Create a new pipe_screen object 442 * Note: we're not presently subclassing pipe_screen (no llvmpipe_screen). 443 */ 444struct pipe_screen * 445llvmpipe_create_screen(struct sw_winsys *winsys) 446{ 447 struct llvmpipe_screen *screen; 448 449#ifdef PIPE_ARCH_X86 450 /* require SSE2 due to LLVM PR6960. */ 451 util_cpu_detect(); 452 if (!util_cpu_caps.has_sse2) 453 return NULL; 454#endif 455 456#ifdef DEBUG 457 LP_DEBUG = debug_get_flags_option("LP_DEBUG", lp_debug_flags, 0 ); 458#endif 459 460 LP_PERF = debug_get_flags_option("LP_PERF", lp_perf_flags, 0 ); 461 462 screen = CALLOC_STRUCT(llvmpipe_screen); 463 if (!screen) 464 return NULL; 465 466 screen->winsys = winsys; 467 468 screen->base.destroy = llvmpipe_destroy_screen; 469 470 screen->base.get_name = llvmpipe_get_name; 471 screen->base.get_vendor = llvmpipe_get_vendor; 472 screen->base.get_param = llvmpipe_get_param; 473 screen->base.get_shader_param = llvmpipe_get_shader_param; 474 screen->base.get_paramf = llvmpipe_get_paramf; 475 screen->base.is_format_supported = llvmpipe_is_format_supported; 476 477 screen->base.context_create = llvmpipe_create_context; 478 screen->base.flush_frontbuffer = llvmpipe_flush_frontbuffer; 479 screen->base.fence_reference = llvmpipe_fence_reference; 480 screen->base.fence_signalled = llvmpipe_fence_signalled; 481 screen->base.fence_finish = llvmpipe_fence_finish; 482 483 llvmpipe_init_screen_resource_funcs(&screen->base); 484 485 lp_jit_screen_init(screen); 486 487 screen->num_threads = util_cpu_caps.nr_cpus > 1 ? util_cpu_caps.nr_cpus : 0; 488#ifdef PIPE_SUBSYSTEM_EMBEDDED 489 screen->num_threads = 0; 490#endif 491 screen->num_threads = debug_get_num_option("LP_NUM_THREADS", screen->num_threads); 492 screen->num_threads = MIN2(screen->num_threads, LP_MAX_THREADS); 493 494 screen->rast = lp_rast_create(screen->num_threads); 495 if (!screen->rast) { 496 lp_jit_screen_cleanup(screen); 497 FREE(screen); 498 return NULL; 499 } 500 pipe_mutex_init(screen->rast_mutex); 501 502 util_format_s3tc_init(); 503 504 return &screen->base; 505} 506