r300_screen.c revision e0773da1e897164ed7597437070e32b867734ee5
1/* 2 * Copyright 2008 Corbin Simpson <MostAwesomeDude@gmail.com> 3 * Copyright 2010 Marek Olšák <maraeo@gmail.com> 4 * 5 * Permission is hereby granted, free of charge, to any person obtaining a 6 * copy of this software and associated documentation files (the "Software"), 7 * to deal in the Software without restriction, including without limitation 8 * on the rights to use, copy, modify, merge, publish, distribute, sub 9 * license, and/or sell copies of the Software, and to permit persons to whom 10 * the Software is furnished to do so, subject to the following conditions: 11 * 12 * The above copyright notice and this permission notice (including the next 13 * paragraph) shall be included in all copies or substantial portions of the 14 * Software. 15 * 16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 18 * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL 19 * THE AUTHOR(S) AND/OR THEIR SUPPLIERS BE LIABLE FOR ANY CLAIM, 20 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR 21 * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE 22 * USE OR OTHER DEALINGS IN THE SOFTWARE. */ 23 24#include "util/u_format.h" 25#include "util/u_format_s3tc.h" 26#include "util/u_memory.h" 27#include "os/os_time.h" 28#include "vl/vl_decoder.h" 29#include "vl/vl_video_buffer.h" 30 31#include "r300_context.h" 32#include "r300_texture.h" 33#include "r300_screen_buffer.h" 34#include "r300_state_inlines.h" 35#include "r300_public.h" 36 37#include "draw/draw_context.h" 38 39/* Return the identifier behind whom the brave coders responsible for this 40 * amalgamation of code, sweat, and duct tape, routinely obscure their names. 41 * 42 * ...I should have just put "Corbin Simpson", but I'm not that cool. 43 * 44 * (Or egotistical. Yet.) */ 45static const char* r300_get_vendor(struct pipe_screen* pscreen) 46{ 47 return "X.Org R300 Project"; 48} 49 50static const char* chip_families[] = { 51 "ATI R300", 52 "ATI R350", 53 "ATI RV350", 54 "ATI RV370", 55 "ATI RV380", 56 "ATI RS400", 57 "ATI RC410", 58 "ATI RS480", 59 "ATI R420", 60 "ATI R423", 61 "ATI R430", 62 "ATI R480", 63 "ATI R481", 64 "ATI RV410", 65 "ATI RS600", 66 "ATI RS690", 67 "ATI RS740", 68 "ATI RV515", 69 "ATI R520", 70 "ATI RV530", 71 "ATI R580", 72 "ATI RV560", 73 "ATI RV570" 74}; 75 76static const char* r300_get_name(struct pipe_screen* pscreen) 77{ 78 struct r300_screen* r300screen = r300_screen(pscreen); 79 80 return chip_families[r300screen->caps.family]; 81} 82 83static int r300_get_param(struct pipe_screen* pscreen, enum pipe_cap param) 84{ 85 struct r300_screen* r300screen = r300_screen(pscreen); 86 boolean is_r500 = r300screen->caps.is_r500; 87 88 switch (param) { 89 /* Supported features (boolean caps). */ 90 case PIPE_CAP_NPOT_TEXTURES: 91 case PIPE_CAP_TWO_SIDED_STENCIL: 92 case PIPE_CAP_ANISOTROPIC_FILTER: 93 case PIPE_CAP_POINT_SPRITE: 94 case PIPE_CAP_OCCLUSION_QUERY: 95 case PIPE_CAP_TEXTURE_SHADOW_MAP: 96 case PIPE_CAP_TEXTURE_MIRROR_CLAMP: 97 case PIPE_CAP_BLEND_EQUATION_SEPARATE: 98 case PIPE_CAP_VERTEX_ELEMENT_INSTANCE_DIVISOR: 99 case PIPE_CAP_TGSI_FS_COORD_ORIGIN_UPPER_LEFT: 100 case PIPE_CAP_TGSI_FS_COORD_PIXEL_CENTER_HALF_INTEGER: 101 case PIPE_CAP_CONDITIONAL_RENDER: 102 case PIPE_CAP_TEXTURE_BARRIER: 103 case PIPE_CAP_TGSI_CAN_COMPACT_VARYINGS: 104 case PIPE_CAP_TGSI_CAN_COMPACT_CONSTANTS: 105 case PIPE_CAP_VERTEX_COLOR_CLAMPED: 106 case PIPE_CAP_VERTEX_BUFFER_OFFSET_4BYTE_ALIGNED_ONLY: 107 case PIPE_CAP_VERTEX_BUFFER_STRIDE_4BYTE_ALIGNED_ONLY: 108 case PIPE_CAP_VERTEX_ELEMENT_SRC_OFFSET_4BYTE_ALIGNED_ONLY: 109 return 1; 110 111 case PIPE_CAP_GLSL_FEATURE_LEVEL: 112 return 120; 113 114 /* r300 cannot do swizzling of compressed textures. Supported otherwise. */ 115 case PIPE_CAP_TEXTURE_SWIZZLE: 116 return util_format_s3tc_enabled ? r300screen->caps.dxtc_swizzle : 1; 117 118 /* Supported on r500 only. */ 119 case PIPE_CAP_VERTEX_COLOR_UNCLAMPED: 120 case PIPE_CAP_MIXED_COLORBUFFER_FORMATS: 121 case PIPE_CAP_SM3: 122 return is_r500 ? 1 : 0; 123 124 /* Unsupported features. */ 125 case PIPE_CAP_TIMER_QUERY: 126 case PIPE_CAP_MAX_DUAL_SOURCE_RENDER_TARGETS: 127 case PIPE_CAP_INDEP_BLEND_ENABLE: 128 case PIPE_CAP_INDEP_BLEND_FUNC: 129 case PIPE_CAP_DEPTH_CLIP_DISABLE: 130 case PIPE_CAP_DEPTHSTENCIL_CLEAR_SEPARATE: 131 case PIPE_CAP_SHADER_STENCIL_EXPORT: 132 case PIPE_CAP_MAX_TEXTURE_ARRAY_LAYERS: 133 case PIPE_CAP_TGSI_INSTANCEID: 134 case PIPE_CAP_TGSI_FS_COORD_ORIGIN_LOWER_LEFT: 135 case PIPE_CAP_TGSI_FS_COORD_PIXEL_CENTER_INTEGER: 136 case PIPE_CAP_SEAMLESS_CUBE_MAP: 137 case PIPE_CAP_SEAMLESS_CUBE_MAP_PER_TEXTURE: 138 case PIPE_CAP_SCALED_RESOLVE: 139 case PIPE_CAP_MIN_TEXEL_OFFSET: 140 case PIPE_CAP_MAX_TEXEL_OFFSET: 141 case PIPE_CAP_MAX_STREAM_OUTPUT_BUFFERS: 142 case PIPE_CAP_MAX_STREAM_OUTPUT_SEPARATE_COMPONENTS: 143 case PIPE_CAP_MAX_STREAM_OUTPUT_INTERLEAVED_COMPONENTS: 144 case PIPE_CAP_STREAM_OUTPUT_PAUSE_RESUME: 145 case PIPE_CAP_FRAGMENT_COLOR_CLAMPED: 146 case PIPE_CAP_QUADS_FOLLOW_PROVOKING_VERTEX_CONVENTION: 147 case PIPE_CAP_USER_VERTEX_BUFFERS: 148 return 0; 149 150 /* SWTCL-only features. */ 151 case PIPE_CAP_PRIMITIVE_RESTART: 152 return !r300screen->caps.has_tcl; 153 154 /* Texturing. */ 155 case PIPE_CAP_MAX_COMBINED_SAMPLERS: 156 return r300screen->caps.num_tex_units; 157 case PIPE_CAP_MAX_TEXTURE_2D_LEVELS: 158 case PIPE_CAP_MAX_TEXTURE_3D_LEVELS: 159 case PIPE_CAP_MAX_TEXTURE_CUBE_LEVELS: 160 /* 13 == 4096, 12 == 2048 */ 161 return is_r500 ? 13 : 12; 162 163 /* Render targets. */ 164 case PIPE_CAP_MAX_RENDER_TARGETS: 165 return 4; 166 } 167 return 0; 168} 169 170static int r300_get_shader_param(struct pipe_screen *pscreen, unsigned shader, enum pipe_shader_cap param) 171{ 172 struct r300_screen* r300screen = r300_screen(pscreen); 173 boolean is_r400 = r300screen->caps.is_r400; 174 boolean is_r500 = r300screen->caps.is_r500; 175 176 switch (shader) { 177 case PIPE_SHADER_FRAGMENT: 178 switch (param) 179 { 180 case PIPE_SHADER_CAP_MAX_INSTRUCTIONS: 181 return is_r500 || is_r400 ? 512 : 96; 182 case PIPE_SHADER_CAP_MAX_ALU_INSTRUCTIONS: 183 return is_r500 || is_r400 ? 512 : 64; 184 case PIPE_SHADER_CAP_MAX_TEX_INSTRUCTIONS: 185 return is_r500 || is_r400 ? 512 : 32; 186 case PIPE_SHADER_CAP_MAX_TEX_INDIRECTIONS: 187 return is_r500 ? 511 : 4; 188 case PIPE_SHADER_CAP_MAX_CONTROL_FLOW_DEPTH: 189 return is_r500 ? 64 : 0; /* Actually unlimited on r500. */ 190 /* Fragment shader limits. */ 191 case PIPE_SHADER_CAP_MAX_INPUTS: 192 /* 2 colors + 8 texcoords are always supported 193 * (minus fog and wpos). 194 * 195 * R500 has the ability to turn 3rd and 4th color into 196 * additional texcoords but there is no two-sided color 197 * selection then. However the facing bit can be used instead. */ 198 return 10; 199 case PIPE_SHADER_CAP_MAX_CONSTS: 200 return is_r500 ? 256 : 32; 201 case PIPE_SHADER_CAP_MAX_CONST_BUFFERS: 202 return 1; 203 case PIPE_SHADER_CAP_MAX_TEMPS: 204 return is_r500 ? 128 : is_r400 ? 64 : 32; 205 case PIPE_SHADER_CAP_MAX_PREDS: 206 return is_r500 ? 1 : 0; 207 case PIPE_SHADER_CAP_MAX_TEXTURE_SAMPLERS: 208 return r300screen->caps.num_tex_units; 209 case PIPE_SHADER_CAP_MAX_ADDRS: 210 case PIPE_SHADER_CAP_TGSI_CONT_SUPPORTED: 211 case PIPE_SHADER_CAP_INDIRECT_INPUT_ADDR: 212 case PIPE_SHADER_CAP_INDIRECT_OUTPUT_ADDR: 213 case PIPE_SHADER_CAP_INDIRECT_TEMP_ADDR: 214 case PIPE_SHADER_CAP_INDIRECT_CONST_ADDR: 215 case PIPE_SHADER_CAP_SUBROUTINES: 216 case PIPE_SHADER_CAP_INTEGERS: 217 return 0; 218 } 219 break; 220 case PIPE_SHADER_VERTEX: 221 switch (param) 222 { 223 case PIPE_SHADER_CAP_MAX_TEXTURE_SAMPLERS: 224 case PIPE_SHADER_CAP_SUBROUTINES: 225 return 0; 226 default:; 227 } 228 229 if (!r300screen->caps.has_tcl) { 230 return draw_get_shader_param(shader, param); 231 } 232 233 switch (param) 234 { 235 case PIPE_SHADER_CAP_MAX_INSTRUCTIONS: 236 case PIPE_SHADER_CAP_MAX_ALU_INSTRUCTIONS: 237 return is_r500 ? 1024 : 256; 238 case PIPE_SHADER_CAP_MAX_CONTROL_FLOW_DEPTH: 239 return is_r500 ? 4 : 0; /* For loops; not sure about conditionals. */ 240 case PIPE_SHADER_CAP_MAX_INPUTS: 241 return 16; 242 case PIPE_SHADER_CAP_MAX_CONSTS: 243 return 256; 244 case PIPE_SHADER_CAP_MAX_CONST_BUFFERS: 245 return 1; 246 case PIPE_SHADER_CAP_MAX_TEMPS: 247 return 32; 248 case PIPE_SHADER_CAP_MAX_ADDRS: 249 return 1; /* XXX guessed */ 250 case PIPE_SHADER_CAP_MAX_PREDS: 251 return is_r500 ? 4 : 0; /* XXX guessed. */ 252 case PIPE_SHADER_CAP_INDIRECT_CONST_ADDR: 253 return 1; 254 case PIPE_SHADER_CAP_MAX_TEX_INSTRUCTIONS: 255 case PIPE_SHADER_CAP_MAX_TEX_INDIRECTIONS: 256 case PIPE_SHADER_CAP_TGSI_CONT_SUPPORTED: 257 case PIPE_SHADER_CAP_INDIRECT_INPUT_ADDR: 258 case PIPE_SHADER_CAP_INDIRECT_OUTPUT_ADDR: 259 case PIPE_SHADER_CAP_INDIRECT_TEMP_ADDR: 260 case PIPE_SHADER_CAP_SUBROUTINES: 261 case PIPE_SHADER_CAP_INTEGERS: 262 case PIPE_SHADER_CAP_MAX_TEXTURE_SAMPLERS: 263 return 0; 264 } 265 break; 266 } 267 return 0; 268} 269 270static float r300_get_paramf(struct pipe_screen* pscreen, 271 enum pipe_capf param) 272{ 273 struct r300_screen* r300screen = r300_screen(pscreen); 274 275 switch (param) { 276 case PIPE_CAPF_MAX_LINE_WIDTH: 277 case PIPE_CAPF_MAX_LINE_WIDTH_AA: 278 case PIPE_CAPF_MAX_POINT_WIDTH: 279 case PIPE_CAPF_MAX_POINT_WIDTH_AA: 280 /* The maximum dimensions of the colorbuffer are our practical 281 * rendering limits. 2048 pixels should be enough for anybody. */ 282 if (r300screen->caps.is_r500) { 283 return 4096.0f; 284 } else if (r300screen->caps.is_r400) { 285 return 4021.0f; 286 } else { 287 return 2560.0f; 288 } 289 case PIPE_CAPF_MAX_TEXTURE_ANISOTROPY: 290 return 16.0f; 291 case PIPE_CAPF_MAX_TEXTURE_LOD_BIAS: 292 return 16.0f; 293 case PIPE_CAPF_GUARD_BAND_LEFT: 294 case PIPE_CAPF_GUARD_BAND_TOP: 295 case PIPE_CAPF_GUARD_BAND_RIGHT: 296 case PIPE_CAPF_GUARD_BAND_BOTTOM: 297 /* XXX I don't know what these should be but the least we can do is 298 * silence the potential error message */ 299 return 0.0f; 300 default: 301 debug_printf("r300: Warning: Unknown CAP %d in get_paramf.\n", 302 param); 303 return 0.0f; 304 } 305} 306 307static int r300_get_video_param(struct pipe_screen *screen, 308 enum pipe_video_profile profile, 309 enum pipe_video_cap param) 310{ 311 switch (param) { 312 case PIPE_VIDEO_CAP_SUPPORTED: 313 return vl_profile_supported(screen, profile); 314 case PIPE_VIDEO_CAP_NPOT_TEXTURES: 315 return 0; 316 case PIPE_VIDEO_CAP_MAX_WIDTH: 317 case PIPE_VIDEO_CAP_MAX_HEIGHT: 318 return vl_video_buffer_max_size(screen); 319 case PIPE_VIDEO_CAP_PREFERED_FORMAT: 320 return PIPE_FORMAT_NV12; 321 case PIPE_VIDEO_CAP_PREFERS_INTERLACED: 322 return false; 323 case PIPE_VIDEO_CAP_SUPPORTS_INTERLACED: 324 return false; 325 case PIPE_VIDEO_CAP_SUPPORTS_PROGRESSIVE: 326 return true; 327 default: 328 return 0; 329 } 330} 331 332static boolean r300_is_format_supported(struct pipe_screen* screen, 333 enum pipe_format format, 334 enum pipe_texture_target target, 335 unsigned sample_count, 336 unsigned usage) 337{ 338 uint32_t retval = 0; 339 boolean drm_2_8_0 = r300_screen(screen)->info.drm_minor >= 8; 340 boolean is_r500 = r300_screen(screen)->caps.is_r500; 341 boolean is_r400 = r300_screen(screen)->caps.is_r400; 342 boolean is_color2101010 = format == PIPE_FORMAT_R10G10B10A2_UNORM || 343 format == PIPE_FORMAT_R10G10B10X2_SNORM || 344 format == PIPE_FORMAT_B10G10R10A2_UNORM || 345 format == PIPE_FORMAT_R10SG10SB10SA2U_NORM; 346 boolean is_ati1n = format == PIPE_FORMAT_RGTC1_UNORM || 347 format == PIPE_FORMAT_RGTC1_SNORM || 348 format == PIPE_FORMAT_LATC1_UNORM || 349 format == PIPE_FORMAT_LATC1_SNORM; 350 boolean is_ati2n = format == PIPE_FORMAT_RGTC2_UNORM || 351 format == PIPE_FORMAT_RGTC2_SNORM || 352 format == PIPE_FORMAT_LATC2_UNORM || 353 format == PIPE_FORMAT_LATC2_SNORM; 354 boolean is_x16f_xy16f = format == PIPE_FORMAT_R16_FLOAT || 355 format == PIPE_FORMAT_R16G16_FLOAT || 356 format == PIPE_FORMAT_A16_FLOAT || 357 format == PIPE_FORMAT_L16_FLOAT || 358 format == PIPE_FORMAT_L16A16_FLOAT || 359 format == PIPE_FORMAT_I16_FLOAT; 360 boolean is_half_float = format == PIPE_FORMAT_R16_FLOAT || 361 format == PIPE_FORMAT_R16G16_FLOAT || 362 format == PIPE_FORMAT_R16G16B16_FLOAT || 363 format == PIPE_FORMAT_R16G16B16A16_FLOAT; 364 365 if (!util_format_is_supported(format, usage)) 366 return FALSE; 367 368 /* Check multisampling support. */ 369 switch (sample_count) { 370 case 0: 371 case 1: 372 break; 373 case 2: 374 case 3: 375 case 4: 376 case 6: 377 return FALSE; 378#if 0 379 if (usage != PIPE_BIND_RENDER_TARGET || 380 !util_format_is_rgba8_variant( 381 util_format_description(format))) { 382 return FALSE; 383 } 384#endif 385 break; 386 default: 387 return FALSE; 388 } 389 390 /* Check sampler format support. */ 391 if ((usage & PIPE_BIND_SAMPLER_VIEW) && 392 /* ATI1N is r5xx-only. */ 393 (is_r500 || !is_ati1n) && 394 /* ATI2N is supported on r4xx-r5xx. */ 395 (is_r400 || is_r500 || !is_ati2n) && 396 /* R16F and RG16F texture support was added in as late as DRM 2.8.0 */ 397 (drm_2_8_0 || !is_x16f_xy16f) && 398 r300_is_sampler_format_supported(format)) { 399 retval |= PIPE_BIND_SAMPLER_VIEW; 400 } 401 402 /* Check colorbuffer format support. */ 403 if ((usage & (PIPE_BIND_RENDER_TARGET | 404 PIPE_BIND_DISPLAY_TARGET | 405 PIPE_BIND_SCANOUT | 406 PIPE_BIND_SHARED)) && 407 /* 2101010 cannot be rendered to on non-r5xx. */ 408 (!is_color2101010 || (is_r500 && drm_2_8_0)) && 409 r300_is_colorbuffer_format_supported(format)) { 410 retval |= usage & 411 (PIPE_BIND_RENDER_TARGET | 412 PIPE_BIND_DISPLAY_TARGET | 413 PIPE_BIND_SCANOUT | 414 PIPE_BIND_SHARED); 415 } 416 417 /* Check depth-stencil format support. */ 418 if (usage & PIPE_BIND_DEPTH_STENCIL && 419 r300_is_zs_format_supported(format)) { 420 retval |= PIPE_BIND_DEPTH_STENCIL; 421 } 422 423 /* Check vertex buffer format support. */ 424 if (usage & PIPE_BIND_VERTEX_BUFFER && 425 /* Half float is supported on >= R400. */ 426 (is_r400 || is_r500 || !is_half_float) && 427 r300_translate_vertex_data_type(format) != R300_INVALID_FORMAT) { 428 retval |= PIPE_BIND_VERTEX_BUFFER; 429 } 430 431 /* Transfers are always supported. */ 432 if (usage & PIPE_BIND_TRANSFER_READ) 433 retval |= PIPE_BIND_TRANSFER_READ; 434 if (usage & PIPE_BIND_TRANSFER_WRITE) 435 retval |= PIPE_BIND_TRANSFER_WRITE; 436 437 return retval == usage; 438} 439 440static void r300_destroy_screen(struct pipe_screen* pscreen) 441{ 442 struct r300_screen* r300screen = r300_screen(pscreen); 443 struct radeon_winsys *rws = radeon_winsys(pscreen); 444 445 util_slab_destroy(&r300screen->pool_buffers); 446 pipe_mutex_destroy(r300screen->num_contexts_mutex); 447 448 if (rws) 449 rws->destroy(rws); 450 451 FREE(r300screen); 452} 453 454static void r300_fence_reference(struct pipe_screen *screen, 455 struct pipe_fence_handle **ptr, 456 struct pipe_fence_handle *fence) 457{ 458 pb_reference((struct pb_buffer**)ptr, 459 (struct pb_buffer*)fence); 460} 461 462static boolean r300_fence_signalled(struct pipe_screen *screen, 463 struct pipe_fence_handle *fence) 464{ 465 struct radeon_winsys *rws = r300_screen(screen)->rws; 466 struct pb_buffer *rfence = (struct pb_buffer*)fence; 467 468 return !rws->buffer_is_busy(rfence, RADEON_USAGE_READWRITE); 469} 470 471static boolean r300_fence_finish(struct pipe_screen *screen, 472 struct pipe_fence_handle *fence, 473 uint64_t timeout) 474{ 475 struct radeon_winsys *rws = r300_screen(screen)->rws; 476 struct pb_buffer *rfence = (struct pb_buffer*)fence; 477 478 if (timeout != PIPE_TIMEOUT_INFINITE) { 479 int64_t start_time = os_time_get(); 480 481 /* Convert to microseconds. */ 482 timeout /= 1000; 483 484 /* Wait in a loop. */ 485 while (rws->buffer_is_busy(rfence, RADEON_USAGE_READWRITE)) { 486 if (os_time_get() - start_time >= timeout) { 487 return FALSE; 488 } 489 os_time_sleep(10); 490 } 491 return TRUE; 492 } 493 494 rws->buffer_wait(rfence, RADEON_USAGE_READWRITE); 495 return TRUE; 496} 497 498struct pipe_screen* r300_screen_create(struct radeon_winsys *rws) 499{ 500 struct r300_screen *r300screen = CALLOC_STRUCT(r300_screen); 501 502 if (!r300screen) { 503 FREE(r300screen); 504 return NULL; 505 } 506 507 rws->query_info(rws, &r300screen->info); 508 509 r300_init_debug(r300screen); 510 r300_parse_chipset(r300screen->info.pci_id, &r300screen->caps); 511 512 if (SCREEN_DBG_ON(r300screen, DBG_NO_ZMASK)) 513 r300screen->caps.zmask_ram = 0; 514 if (SCREEN_DBG_ON(r300screen, DBG_NO_HIZ)) 515 r300screen->caps.hiz_ram = 0; 516 517 if (r300screen->info.drm_minor < 8) 518 r300screen->caps.has_us_format = FALSE; 519 520 pipe_mutex_init(r300screen->num_contexts_mutex); 521 522 util_slab_create(&r300screen->pool_buffers, 523 sizeof(struct r300_resource), 64, 524 UTIL_SLAB_SINGLETHREADED); 525 526 r300screen->rws = rws; 527 r300screen->screen.destroy = r300_destroy_screen; 528 r300screen->screen.get_name = r300_get_name; 529 r300screen->screen.get_vendor = r300_get_vendor; 530 r300screen->screen.get_param = r300_get_param; 531 r300screen->screen.get_shader_param = r300_get_shader_param; 532 r300screen->screen.get_paramf = r300_get_paramf; 533 r300screen->screen.get_video_param = r300_get_video_param; 534 r300screen->screen.is_format_supported = r300_is_format_supported; 535 r300screen->screen.is_video_format_supported = vl_video_buffer_is_format_supported; 536 r300screen->screen.context_create = r300_create_context; 537 r300screen->screen.fence_reference = r300_fence_reference; 538 r300screen->screen.fence_signalled = r300_fence_signalled; 539 r300screen->screen.fence_finish = r300_fence_finish; 540 541 r300_init_screen_resource_functions(r300screen); 542 543 util_format_s3tc_init(); 544 545 return &r300screen->screen; 546} 547