lp_screen.c revision 3464ebd5
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_format_s3tc.h" 34#include "pipe/p_defines.h" 35#include "pipe/p_screen.h" 36#include "draw/draw_context.h" 37 38#include "lp_texture.h" 39#include "lp_fence.h" 40#include "lp_jit.h" 41#include "lp_screen.h" 42#include "lp_context.h" 43#include "lp_debug.h" 44#include "lp_public.h" 45#include "lp_limits.h" 46#include "lp_rast.h" 47 48#include "state_tracker/sw_winsys.h" 49 50#ifdef DEBUG 51int LP_DEBUG = 0; 52 53static const struct debug_named_value lp_debug_flags[] = { 54 { "pipe", DEBUG_PIPE, NULL }, 55 { "tgsi", DEBUG_TGSI, NULL }, 56 { "tex", DEBUG_TEX, NULL }, 57 { "setup", DEBUG_SETUP, NULL }, 58 { "rast", DEBUG_RAST, NULL }, 59 { "query", DEBUG_QUERY, NULL }, 60 { "screen", DEBUG_SCREEN, NULL }, 61 { "show_tiles", DEBUG_SHOW_TILES, NULL }, 62 { "show_subtiles", DEBUG_SHOW_SUBTILES, NULL }, 63 { "counters", DEBUG_COUNTERS, NULL }, 64 { "scene", DEBUG_SCENE, NULL }, 65 { "fence", DEBUG_FENCE, NULL }, 66 { "mem", DEBUG_MEM, NULL }, 67 { "fs", DEBUG_FS, NULL }, 68 DEBUG_NAMED_VALUE_END 69}; 70#endif 71 72int LP_PERF = 0; 73static const struct debug_named_value lp_perf_flags[] = { 74 { "texmem", PERF_TEX_MEM, NULL }, 75 { "no_mipmap", PERF_NO_MIPMAPS, NULL }, 76 { "no_linear", PERF_NO_LINEAR, NULL }, 77 { "no_mip_linear", PERF_NO_MIP_LINEAR, NULL }, 78 { "no_tex", PERF_NO_TEX, NULL }, 79 { "no_blend", PERF_NO_BLEND, NULL }, 80 { "no_depth", PERF_NO_DEPTH, NULL }, 81 { "no_alphatest", PERF_NO_ALPHATEST, NULL }, 82 DEBUG_NAMED_VALUE_END 83}; 84 85 86static const char * 87llvmpipe_get_vendor(struct pipe_screen *screen) 88{ 89 return "VMware, Inc."; 90} 91 92 93static const char * 94llvmpipe_get_name(struct pipe_screen *screen) 95{ 96 return "llvmpipe"; 97} 98 99 100static int 101llvmpipe_get_param(struct pipe_screen *screen, enum pipe_cap param) 102{ 103 switch (param) { 104 case PIPE_CAP_MAX_TEXTURE_IMAGE_UNITS: 105 return PIPE_MAX_SAMPLERS; 106 case PIPE_CAP_MAX_VERTEX_TEXTURE_UNITS: 107 /* At this time, the draw module and llvmpipe driver only 108 * support vertex shader texture lookups when LLVM is enabled in 109 * the draw module. 110 */ 111 if (debug_get_bool_option("DRAW_USE_LLVM", TRUE)) 112 return PIPE_MAX_VERTEX_SAMPLERS; 113 else 114 return 0; 115 case PIPE_CAP_MAX_COMBINED_SAMPLERS: 116 return PIPE_MAX_SAMPLERS + PIPE_MAX_VERTEX_SAMPLERS; 117 case PIPE_CAP_NPOT_TEXTURES: 118 return 1; 119 case PIPE_CAP_TWO_SIDED_STENCIL: 120 return 1; 121 case PIPE_CAP_GLSL: 122 return 1; 123 case PIPE_CAP_SM3: 124 return 1; 125 case PIPE_CAP_ANISOTROPIC_FILTER: 126 return 0; 127 case PIPE_CAP_POINT_SPRITE: 128 return 1; 129 case PIPE_CAP_MAX_RENDER_TARGETS: 130 return PIPE_MAX_COLOR_BUFS; 131 case PIPE_CAP_OCCLUSION_QUERY: 132 return 1; 133 case PIPE_CAP_TIMER_QUERY: 134 return 0; 135 case PIPE_CAP_TEXTURE_MIRROR_CLAMP: 136 return 1; 137 case PIPE_CAP_TEXTURE_MIRROR_REPEAT: 138 return 1; 139 case PIPE_CAP_TEXTURE_SHADOW_MAP: 140 return 1; 141 case PIPE_CAP_TEXTURE_SWIZZLE: 142 return 1; 143 case PIPE_CAP_MAX_TEXTURE_2D_LEVELS: 144 return LP_MAX_TEXTURE_2D_LEVELS; 145 case PIPE_CAP_MAX_TEXTURE_3D_LEVELS: 146 return LP_MAX_TEXTURE_3D_LEVELS; 147 case PIPE_CAP_MAX_TEXTURE_CUBE_LEVELS: 148 return LP_MAX_TEXTURE_2D_LEVELS; 149 case PIPE_CAP_BLEND_EQUATION_SEPARATE: 150 return 1; 151 case PIPE_CAP_INDEP_BLEND_ENABLE: 152 return 1; 153 case PIPE_CAP_INDEP_BLEND_FUNC: 154 return 1; 155 case PIPE_CAP_TGSI_FS_COORD_ORIGIN_UPPER_LEFT: 156 case PIPE_CAP_TGSI_FS_COORD_PIXEL_CENTER_INTEGER: 157 return 1; 158 case PIPE_CAP_TGSI_FS_COORD_ORIGIN_LOWER_LEFT: 159 case PIPE_CAP_TGSI_FS_COORD_PIXEL_CENTER_HALF_INTEGER: 160 return 0; 161 case PIPE_CAP_PRIMITIVE_RESTART: 162 return 1; 163 case PIPE_CAP_DEPTHSTENCIL_CLEAR_SEPARATE: 164 return 1; 165 case PIPE_CAP_DEPTH_CLAMP: 166 return 0; 167 case PIPE_CAP_TGSI_INSTANCEID: 168 case PIPE_CAP_VERTEX_ELEMENT_INSTANCE_DIVISOR: 169 case PIPE_CAP_MIXED_COLORBUFFER_FORMATS: 170 return 1; 171 default: 172 return 0; 173 } 174} 175 176static int 177llvmpipe_get_shader_param(struct pipe_screen *screen, unsigned shader, enum pipe_shader_cap param) 178{ 179 switch(shader) 180 { 181 case PIPE_SHADER_FRAGMENT: 182 return tgsi_exec_get_shader_param(param); 183 case PIPE_SHADER_VERTEX: 184 case PIPE_SHADER_GEOMETRY: 185 return draw_get_shader_param(shader, param); 186 default: 187 return 0; 188 } 189} 190 191static float 192llvmpipe_get_paramf(struct pipe_screen *screen, enum pipe_cap param) 193{ 194 switch (param) { 195 case PIPE_CAP_MAX_LINE_WIDTH: 196 /* fall-through */ 197 case PIPE_CAP_MAX_LINE_WIDTH_AA: 198 return 255.0; /* arbitrary */ 199 case PIPE_CAP_MAX_POINT_WIDTH: 200 /* fall-through */ 201 case PIPE_CAP_MAX_POINT_WIDTH_AA: 202 return 255.0; /* arbitrary */ 203 case PIPE_CAP_MAX_TEXTURE_ANISOTROPY: 204 return 16.0; /* not actually signficant at this time */ 205 case PIPE_CAP_MAX_TEXTURE_LOD_BIAS: 206 return 16.0; /* arbitrary */ 207 case PIPE_CAP_GUARD_BAND_LEFT: 208 case PIPE_CAP_GUARD_BAND_TOP: 209 case PIPE_CAP_GUARD_BAND_RIGHT: 210 case PIPE_CAP_GUARD_BAND_BOTTOM: 211 return 0.0; 212 default: 213 assert(0); 214 return 0; 215 } 216} 217 218 219/** 220 * Query format support for creating a texture, drawing surface, etc. 221 * \param format the format to test 222 * \param type one of PIPE_TEXTURE, PIPE_SURFACE 223 */ 224static boolean 225llvmpipe_is_format_supported( struct pipe_screen *_screen, 226 enum pipe_format format, 227 enum pipe_texture_target target, 228 unsigned sample_count, 229 unsigned bind) 230{ 231 struct llvmpipe_screen *screen = llvmpipe_screen(_screen); 232 struct sw_winsys *winsys = screen->winsys; 233 const struct util_format_description *format_desc; 234 235 format_desc = util_format_description(format); 236 if (!format_desc) 237 return FALSE; 238 239 assert(target == PIPE_BUFFER || 240 target == PIPE_TEXTURE_1D || 241 target == PIPE_TEXTURE_2D || 242 target == PIPE_TEXTURE_RECT || 243 target == PIPE_TEXTURE_3D || 244 target == PIPE_TEXTURE_CUBE); 245 246 if (sample_count > 1) 247 return FALSE; 248 249 if (bind & PIPE_BIND_RENDER_TARGET) { 250 if (format_desc->colorspace == UTIL_FORMAT_COLORSPACE_ZS) 251 return FALSE; 252 253 if (format_desc->layout != UTIL_FORMAT_LAYOUT_PLAIN) 254 return FALSE; 255 256 if (format_desc->block.width != 1 || 257 format_desc->block.height != 1) 258 return FALSE; 259 } 260 261 if (bind & PIPE_BIND_DISPLAY_TARGET) { 262 if(!winsys->is_displaytarget_format_supported(winsys, bind, format)) 263 return FALSE; 264 } 265 266 if (bind & PIPE_BIND_DEPTH_STENCIL) { 267 if (format_desc->layout != UTIL_FORMAT_LAYOUT_PLAIN) 268 return FALSE; 269 270 if (format_desc->colorspace != UTIL_FORMAT_COLORSPACE_ZS) 271 return FALSE; 272 273 /* FIXME: Temporary restriction. See lp_state_fs.c. */ 274 if (format_desc->block.bits != 32) 275 return FALSE; 276 } 277 278 if (format_desc->layout == UTIL_FORMAT_LAYOUT_S3TC) { 279 return util_format_s3tc_enabled; 280 } 281 282 /* u_format doesn't support RGTC yet */ 283 if (format_desc->layout == UTIL_FORMAT_LAYOUT_RGTC) { 284 return FALSE; 285 } 286 287 /* 288 * Everything else should be supported by u_format. 289 */ 290 return TRUE; 291} 292 293 294 295 296static void 297llvmpipe_flush_frontbuffer(struct pipe_screen *_screen, 298 struct pipe_resource *resource, 299 unsigned level, unsigned layer, 300 void *context_private) 301{ 302 struct llvmpipe_screen *screen = llvmpipe_screen(_screen); 303 struct sw_winsys *winsys = screen->winsys; 304 struct llvmpipe_resource *texture = llvmpipe_resource(resource); 305 306 assert(texture->dt); 307 if (texture->dt) 308 winsys->displaytarget_display(winsys, texture->dt, context_private); 309} 310 311 312static void 313llvmpipe_destroy_screen( struct pipe_screen *_screen ) 314{ 315 struct llvmpipe_screen *screen = llvmpipe_screen(_screen); 316 struct sw_winsys *winsys = screen->winsys; 317 318 if (screen->rast) 319 lp_rast_destroy(screen->rast); 320 321 lp_jit_screen_cleanup(screen); 322 323 if(winsys->destroy) 324 winsys->destroy(winsys); 325 326 pipe_mutex_destroy(screen->rast_mutex); 327 328 FREE(screen); 329} 330 331 332 333 334/** 335 * Fence reference counting. 336 */ 337static void 338llvmpipe_fence_reference(struct pipe_screen *screen, 339 struct pipe_fence_handle **ptr, 340 struct pipe_fence_handle *fence) 341{ 342 struct lp_fence **old = (struct lp_fence **) ptr; 343 struct lp_fence *f = (struct lp_fence *) fence; 344 345 lp_fence_reference(old, f); 346} 347 348 349/** 350 * Has the fence been executed/finished? 351 */ 352static boolean 353llvmpipe_fence_signalled(struct pipe_screen *screen, 354 struct pipe_fence_handle *fence) 355{ 356 struct lp_fence *f = (struct lp_fence *) fence; 357 return lp_fence_signalled(f); 358} 359 360 361/** 362 * Wait for the fence to finish. 363 */ 364static boolean 365llvmpipe_fence_finish(struct pipe_screen *screen, 366 struct pipe_fence_handle *fence_handle, 367 uint64_t timeout) 368{ 369 struct lp_fence *f = (struct lp_fence *) fence_handle; 370 371 lp_fence_wait(f); 372 return TRUE; 373} 374 375 376 377/** 378 * Create a new pipe_screen object 379 * Note: we're not presently subclassing pipe_screen (no llvmpipe_screen). 380 */ 381struct pipe_screen * 382llvmpipe_create_screen(struct sw_winsys *winsys) 383{ 384 struct llvmpipe_screen *screen; 385 386#ifdef PIPE_ARCH_X86 387 /* require SSE2 due to LLVM PR6960. */ 388 util_cpu_detect(); 389 if (!util_cpu_caps.has_sse2) 390 return NULL; 391#endif 392 393 screen = CALLOC_STRUCT(llvmpipe_screen); 394 395#ifdef DEBUG 396 LP_DEBUG = debug_get_flags_option("LP_DEBUG", lp_debug_flags, 0 ); 397#endif 398 399 LP_PERF = debug_get_flags_option("LP_PERF", lp_perf_flags, 0 ); 400 401 if (!screen) 402 return NULL; 403 404 screen->winsys = winsys; 405 406 screen->base.destroy = llvmpipe_destroy_screen; 407 408 screen->base.get_name = llvmpipe_get_name; 409 screen->base.get_vendor = llvmpipe_get_vendor; 410 screen->base.get_param = llvmpipe_get_param; 411 screen->base.get_shader_param = llvmpipe_get_shader_param; 412 screen->base.get_paramf = llvmpipe_get_paramf; 413 screen->base.is_format_supported = llvmpipe_is_format_supported; 414 415 screen->base.context_create = llvmpipe_create_context; 416 screen->base.flush_frontbuffer = llvmpipe_flush_frontbuffer; 417 screen->base.fence_reference = llvmpipe_fence_reference; 418 screen->base.fence_signalled = llvmpipe_fence_signalled; 419 screen->base.fence_finish = llvmpipe_fence_finish; 420 421 llvmpipe_init_screen_resource_funcs(&screen->base); 422 423 lp_jit_screen_init(screen); 424 425 screen->num_threads = util_cpu_caps.nr_cpus > 1 ? util_cpu_caps.nr_cpus : 0; 426#ifdef PIPE_SUBSYSTEM_EMBEDDED 427 screen->num_threads = 0; 428#endif 429 screen->num_threads = debug_get_num_option("LP_NUM_THREADS", screen->num_threads); 430 screen->num_threads = MIN2(screen->num_threads, LP_MAX_THREADS); 431 432 screen->rast = lp_rast_create(screen->num_threads); 433 if (!screen->rast) { 434 lp_jit_screen_cleanup(screen); 435 FREE(screen); 436 return NULL; 437 } 438 pipe_mutex_init(screen->rast_mutex); 439 440 util_format_s3tc_init(); 441 442 return &screen->base; 443} 444