lp_screen.c revision c88f3e0374620f18cf38d9fc3c45d14bc53f62b2
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 PIPE_MAX_SAMPLERS + PIPE_MAX_VERTEX_SAMPLERS; 109 case PIPE_CAP_NPOT_TEXTURES: 110 return 1; 111 case PIPE_CAP_TWO_SIDED_STENCIL: 112 return 1; 113 case PIPE_CAP_GLSL: 114 return 1; 115 case PIPE_CAP_SM3: 116 return 1; 117 case PIPE_CAP_ANISOTROPIC_FILTER: 118 return 0; 119 case PIPE_CAP_POINT_SPRITE: 120 return 1; 121 case PIPE_CAP_MAX_RENDER_TARGETS: 122 return PIPE_MAX_COLOR_BUFS; 123 case PIPE_CAP_OCCLUSION_QUERY: 124 return 1; 125 case PIPE_CAP_TIMER_QUERY: 126 return 0; 127 case PIPE_CAP_TEXTURE_MIRROR_CLAMP: 128 return 1; 129 case PIPE_CAP_TEXTURE_SHADOW_MAP: 130 return 1; 131 case PIPE_CAP_TEXTURE_SWIZZLE: 132 return 1; 133 case PIPE_CAP_MAX_TEXTURE_2D_LEVELS: 134 return LP_MAX_TEXTURE_2D_LEVELS; 135 case PIPE_CAP_MAX_TEXTURE_3D_LEVELS: 136 return LP_MAX_TEXTURE_3D_LEVELS; 137 case PIPE_CAP_MAX_TEXTURE_CUBE_LEVELS: 138 return LP_MAX_TEXTURE_2D_LEVELS; 139 case PIPE_CAP_BLEND_EQUATION_SEPARATE: 140 return 1; 141 case PIPE_CAP_INDEP_BLEND_ENABLE: 142 return 1; 143 case PIPE_CAP_INDEP_BLEND_FUNC: 144 return 1; 145 case PIPE_CAP_TGSI_FS_COORD_ORIGIN_UPPER_LEFT: 146 case PIPE_CAP_TGSI_FS_COORD_PIXEL_CENTER_INTEGER: 147 return 1; 148 case PIPE_CAP_TGSI_FS_COORD_ORIGIN_LOWER_LEFT: 149 case PIPE_CAP_TGSI_FS_COORD_PIXEL_CENTER_HALF_INTEGER: 150 return 0; 151 case PIPE_CAP_PRIMITIVE_RESTART: 152 return 1; 153 case PIPE_CAP_DEPTHSTENCIL_CLEAR_SEPARATE: 154 return 1; 155 case PIPE_CAP_DEPTH_CLAMP: 156 return 0; 157 case PIPE_CAP_TGSI_INSTANCEID: 158 case PIPE_CAP_VERTEX_ELEMENT_INSTANCE_DIVISOR: 159 case PIPE_CAP_MIXED_COLORBUFFER_FORMATS: 160 case PIPE_CAP_CONDITIONAL_RENDER: 161 return 1; 162 default: 163 return 0; 164 } 165} 166 167static int 168llvmpipe_get_shader_param(struct pipe_screen *screen, unsigned shader, enum pipe_shader_cap param) 169{ 170 switch(shader) 171 { 172 case PIPE_SHADER_FRAGMENT: 173 return tgsi_exec_get_shader_param(param); 174 case PIPE_SHADER_VERTEX: 175 case PIPE_SHADER_GEOMETRY: 176 switch (param) { 177 case PIPE_SHADER_CAP_MAX_TEXTURE_SAMPLERS: 178 /* At this time, the draw module and llvmpipe driver only 179 * support vertex shader texture lookups when LLVM is enabled in 180 * the draw module. 181 */ 182 if (debug_get_bool_option("DRAW_USE_LLVM", TRUE)) 183 return PIPE_MAX_VERTEX_SAMPLERS; 184 else 185 return 0; 186 default: 187 return draw_get_shader_param(shader, param); 188 } 189 default: 190 return 0; 191 } 192} 193 194static float 195llvmpipe_get_paramf(struct pipe_screen *screen, enum pipe_cap param) 196{ 197 switch (param) { 198 case PIPE_CAP_MAX_LINE_WIDTH: 199 /* fall-through */ 200 case PIPE_CAP_MAX_LINE_WIDTH_AA: 201 return 255.0; /* arbitrary */ 202 case PIPE_CAP_MAX_POINT_WIDTH: 203 /* fall-through */ 204 case PIPE_CAP_MAX_POINT_WIDTH_AA: 205 return 255.0; /* arbitrary */ 206 case PIPE_CAP_MAX_TEXTURE_ANISOTROPY: 207 return 16.0; /* not actually signficant at this time */ 208 case PIPE_CAP_MAX_TEXTURE_LOD_BIAS: 209 return 16.0; /* arbitrary */ 210 case PIPE_CAP_GUARD_BAND_LEFT: 211 case PIPE_CAP_GUARD_BAND_TOP: 212 case PIPE_CAP_GUARD_BAND_RIGHT: 213 case PIPE_CAP_GUARD_BAND_BOTTOM: 214 return 0.0; 215 default: 216 assert(0); 217 return 0; 218 } 219} 220 221 222/** 223 * Query format support for creating a texture, drawing surface, etc. 224 * \param format the format to test 225 * \param type one of PIPE_TEXTURE, PIPE_SURFACE 226 */ 227static boolean 228llvmpipe_is_format_supported( struct pipe_screen *_screen, 229 enum pipe_format format, 230 enum pipe_texture_target target, 231 unsigned sample_count, 232 unsigned bind) 233{ 234 struct llvmpipe_screen *screen = llvmpipe_screen(_screen); 235 struct sw_winsys *winsys = screen->winsys; 236 const struct util_format_description *format_desc; 237 238 format_desc = util_format_description(format); 239 if (!format_desc) 240 return FALSE; 241 242 assert(target == PIPE_BUFFER || 243 target == PIPE_TEXTURE_1D || 244 target == PIPE_TEXTURE_2D || 245 target == PIPE_TEXTURE_RECT || 246 target == PIPE_TEXTURE_3D || 247 target == PIPE_TEXTURE_CUBE); 248 249 if (sample_count > 1) 250 return FALSE; 251 252 if (format_desc->format == PIPE_FORMAT_R11G11B10_FLOAT || 253 format_desc->format == PIPE_FORMAT_R9G9B9E5_FLOAT) 254 return TRUE; 255 256 if (bind & PIPE_BIND_RENDER_TARGET) { 257 if (format_desc->colorspace == UTIL_FORMAT_COLORSPACE_ZS || 258 format_desc->colorspace == UTIL_FORMAT_COLORSPACE_SRGB) 259 return FALSE; 260 261 if (format_desc->layout != UTIL_FORMAT_LAYOUT_PLAIN) 262 return FALSE; 263 264 if (format_desc->block.width != 1 || 265 format_desc->block.height != 1) 266 return FALSE; 267 } 268 269 if (bind & PIPE_BIND_DISPLAY_TARGET) { 270 if(!winsys->is_displaytarget_format_supported(winsys, bind, format)) 271 return FALSE; 272 } 273 274 if (bind & PIPE_BIND_DEPTH_STENCIL) { 275 if (format_desc->layout != UTIL_FORMAT_LAYOUT_PLAIN) 276 return FALSE; 277 278 if (format_desc->colorspace != UTIL_FORMAT_COLORSPACE_ZS) 279 return FALSE; 280 281 /* FIXME: Temporary restriction. See lp_state_fs.c. */ 282 if (format_desc->block.bits != 32) 283 return FALSE; 284 } 285 286 if (format_desc->layout == UTIL_FORMAT_LAYOUT_S3TC) { 287 return util_format_s3tc_enabled; 288 } 289 290 /* 291 * Everything can be supported by u_format. 292 */ 293 294 if (format_desc->colorspace != UTIL_FORMAT_COLORSPACE_ZS && 295 !format_desc->fetch_rgba_float) { 296 return FALSE; 297 } 298 299 return TRUE; 300} 301 302 303 304 305static void 306llvmpipe_flush_frontbuffer(struct pipe_screen *_screen, 307 struct pipe_resource *resource, 308 unsigned level, unsigned layer, 309 void *context_private) 310{ 311 struct llvmpipe_screen *screen = llvmpipe_screen(_screen); 312 struct sw_winsys *winsys = screen->winsys; 313 struct llvmpipe_resource *texture = llvmpipe_resource(resource); 314 315 assert(texture->dt); 316 if (texture->dt) 317 winsys->displaytarget_display(winsys, texture->dt, context_private); 318} 319 320 321static void 322llvmpipe_destroy_screen( struct pipe_screen *_screen ) 323{ 324 struct llvmpipe_screen *screen = llvmpipe_screen(_screen); 325 struct sw_winsys *winsys = screen->winsys; 326 327 if (screen->rast) 328 lp_rast_destroy(screen->rast); 329 330 lp_jit_screen_cleanup(screen); 331 332 if(winsys->destroy) 333 winsys->destroy(winsys); 334 335 pipe_mutex_destroy(screen->rast_mutex); 336 337 FREE(screen); 338} 339 340 341 342 343/** 344 * Fence reference counting. 345 */ 346static void 347llvmpipe_fence_reference(struct pipe_screen *screen, 348 struct pipe_fence_handle **ptr, 349 struct pipe_fence_handle *fence) 350{ 351 struct lp_fence **old = (struct lp_fence **) ptr; 352 struct lp_fence *f = (struct lp_fence *) fence; 353 354 lp_fence_reference(old, f); 355} 356 357 358/** 359 * Has the fence been executed/finished? 360 */ 361static boolean 362llvmpipe_fence_signalled(struct pipe_screen *screen, 363 struct pipe_fence_handle *fence) 364{ 365 struct lp_fence *f = (struct lp_fence *) fence; 366 return lp_fence_signalled(f); 367} 368 369 370/** 371 * Wait for the fence to finish. 372 */ 373static boolean 374llvmpipe_fence_finish(struct pipe_screen *screen, 375 struct pipe_fence_handle *fence_handle, 376 uint64_t timeout) 377{ 378 struct lp_fence *f = (struct lp_fence *) fence_handle; 379 380 lp_fence_wait(f); 381 return TRUE; 382} 383 384 385 386/** 387 * Create a new pipe_screen object 388 * Note: we're not presently subclassing pipe_screen (no llvmpipe_screen). 389 */ 390struct pipe_screen * 391llvmpipe_create_screen(struct sw_winsys *winsys) 392{ 393 struct llvmpipe_screen *screen; 394 395#ifdef PIPE_ARCH_X86 396 /* require SSE2 due to LLVM PR6960. */ 397 util_cpu_detect(); 398 if (!util_cpu_caps.has_sse2) 399 return NULL; 400#endif 401 402#ifdef DEBUG 403 LP_DEBUG = debug_get_flags_option("LP_DEBUG", lp_debug_flags, 0 ); 404#endif 405 406 LP_PERF = debug_get_flags_option("LP_PERF", lp_perf_flags, 0 ); 407 408 screen = CALLOC_STRUCT(llvmpipe_screen); 409 if (!screen) 410 return NULL; 411 412 screen->winsys = winsys; 413 414 screen->base.destroy = llvmpipe_destroy_screen; 415 416 screen->base.get_name = llvmpipe_get_name; 417 screen->base.get_vendor = llvmpipe_get_vendor; 418 screen->base.get_param = llvmpipe_get_param; 419 screen->base.get_shader_param = llvmpipe_get_shader_param; 420 screen->base.get_paramf = llvmpipe_get_paramf; 421 screen->base.is_format_supported = llvmpipe_is_format_supported; 422 423 screen->base.context_create = llvmpipe_create_context; 424 screen->base.flush_frontbuffer = llvmpipe_flush_frontbuffer; 425 screen->base.fence_reference = llvmpipe_fence_reference; 426 screen->base.fence_signalled = llvmpipe_fence_signalled; 427 screen->base.fence_finish = llvmpipe_fence_finish; 428 429 llvmpipe_init_screen_resource_funcs(&screen->base); 430 431 lp_jit_screen_init(screen); 432 433 screen->num_threads = util_cpu_caps.nr_cpus > 1 ? util_cpu_caps.nr_cpus : 0; 434#ifdef PIPE_SUBSYSTEM_EMBEDDED 435 screen->num_threads = 0; 436#endif 437 screen->num_threads = debug_get_num_option("LP_NUM_THREADS", screen->num_threads); 438 screen->num_threads = MIN2(screen->num_threads, LP_MAX_THREADS); 439 440 screen->rast = lp_rast_create(screen->num_threads); 441 if (!screen->rast) { 442 lp_jit_screen_cleanup(screen); 443 FREE(screen); 444 return NULL; 445 } 446 pipe_mutex_init(screen->rast_mutex); 447 448 util_format_s3tc_init(); 449 450 return &screen->base; 451} 452