r300_screen.c revision 536d52702034a03d94866cb6cf8fc05502860320
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 28#include "r300_context.h" 29#include "r300_texture.h" 30#include "r300_screen_buffer.h" 31#include "r300_state_inlines.h" 32#include "r300_winsys.h" 33#include "r300_public.h" 34 35#include "draw/draw_context.h" 36 37/* Return the identifier behind whom the brave coders responsible for this 38 * amalgamation of code, sweat, and duct tape, routinely obscure their names. 39 * 40 * ...I should have just put "Corbin Simpson", but I'm not that cool. 41 * 42 * (Or egotistical. Yet.) */ 43static const char* r300_get_vendor(struct pipe_screen* pscreen) 44{ 45 return "X.Org R300 Project"; 46} 47 48static const char* chip_families[] = { 49 "ATI R300", 50 "ATI R350", 51 "ATI R360", 52 "ATI RV350", 53 "ATI RV370", 54 "ATI RV380", 55 "ATI R420", 56 "ATI R423", 57 "ATI R430", 58 "ATI R480", 59 "ATI R481", 60 "ATI RV410", 61 "ATI RS400", 62 "ATI RC410", 63 "ATI RS480", 64 "ATI RS482", 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_r400 = r300screen->caps.is_r400; 87 boolean is_r500 = r300screen->caps.is_r500; 88 89 /* XXX extended shader capabilities of r400 unimplemented */ 90 is_r400 = FALSE; 91 92 switch (param) { 93 /* Supported features (boolean caps). */ 94 case PIPE_CAP_NPOT_TEXTURES: 95 case PIPE_CAP_TWO_SIDED_STENCIL: 96 case PIPE_CAP_GLSL: 97 /* I'll be frank. This is a lie. 98 * 99 * We don't truly support GLSL on any of this driver's chipsets. 100 * To be fair, no chipset supports the full GLSL specification 101 * to the best of our knowledge, but some of the less esoteric 102 * features are still missing here. 103 * 104 * Rather than cripple ourselves intentionally, I'm going to set 105 * this flag, and as Gallium's interface continues to change, I 106 * hope that this single monolithic GLSL enable can slowly get 107 * split down into many different pieces and the state tracker 108 * will handle fallbacks transparently, like it should. 109 * 110 * ~ C. 111 */ 112 case PIPE_CAP_ANISOTROPIC_FILTER: 113 case PIPE_CAP_POINT_SPRITE: 114 case PIPE_CAP_OCCLUSION_QUERY: 115 case PIPE_CAP_TEXTURE_SHADOW_MAP: 116 case PIPE_CAP_TEXTURE_MIRROR_CLAMP: 117 case PIPE_CAP_TEXTURE_MIRROR_REPEAT: 118 case PIPE_CAP_BLEND_EQUATION_SEPARATE: 119 return 1; 120 case PIPE_CAP_TEXTURE_SWIZZLE: 121 return util_format_s3tc_enabled ? r300screen->caps.dxtc_swizzle : 1; 122 123 /* Unsupported features (boolean caps). */ 124 case PIPE_CAP_TIMER_QUERY: 125 case PIPE_CAP_DUAL_SOURCE_BLEND: 126 case PIPE_CAP_INDEP_BLEND_ENABLE: 127 case PIPE_CAP_INDEP_BLEND_FUNC: 128 case PIPE_CAP_DEPTH_CLAMP: /* XXX implemented, but breaks Regnum Online */ 129 case PIPE_CAP_DEPTHSTENCIL_CLEAR_SEPARATE: 130 case PIPE_CAP_SHADER_STENCIL_EXPORT: 131 case PIPE_CAP_STREAM_OUTPUT: 132 case PIPE_CAP_PRIMITIVE_RESTART: 133 return 0; 134 135 /* Texturing. */ 136 case PIPE_CAP_MAX_TEXTURE_IMAGE_UNITS: 137 case PIPE_CAP_MAX_COMBINED_SAMPLERS: 138 return r300screen->caps.num_tex_units; 139 case PIPE_CAP_MAX_VERTEX_TEXTURE_UNITS: 140 return 0; 141 case PIPE_CAP_MAX_TEXTURE_2D_LEVELS: 142 case PIPE_CAP_MAX_TEXTURE_3D_LEVELS: 143 case PIPE_CAP_MAX_TEXTURE_CUBE_LEVELS: 144 /* 13 == 4096, 12 == 2048 */ 145 return is_r500 ? 13 : 12; 146 147 /* Render targets. */ 148 case PIPE_CAP_MAX_RENDER_TARGETS: 149 return 4; 150 151 /* General shader limits and features. */ 152 case PIPE_CAP_SM3: 153 return is_r500 ? 1 : 0; 154 /* Fragment coordinate conventions. */ 155 case PIPE_CAP_TGSI_FS_COORD_ORIGIN_UPPER_LEFT: 156 case PIPE_CAP_TGSI_FS_COORD_PIXEL_CENTER_HALF_INTEGER: 157 return 1; 158 case PIPE_CAP_TGSI_FS_COORD_ORIGIN_LOWER_LEFT: 159 case PIPE_CAP_TGSI_FS_COORD_PIXEL_CENTER_INTEGER: 160 return 0; 161 default: 162 debug_printf("r300: Warning: Unknown CAP %d in get_param.\n", 163 param); 164 return 0; 165 } 166} 167 168static int r300_get_shader_param(struct pipe_screen *pscreen, unsigned shader, enum pipe_shader_cap param) 169{ 170 struct r300_screen* r300screen = r300_screen(pscreen); 171 boolean is_r400 = r300screen->caps.is_r400; 172 boolean is_r500 = r300screen->caps.is_r500; 173 174 /* XXX extended shader capabilities of r400 unimplemented */ 175 is_r400 = FALSE; 176 177 switch (shader) 178 { 179 case PIPE_SHADER_FRAGMENT: 180 switch (param) 181 { 182 case PIPE_SHADER_CAP_MAX_INSTRUCTIONS: 183 return is_r500 || is_r400 ? 512 : 96; 184 case PIPE_SHADER_CAP_MAX_ALU_INSTRUCTIONS: 185 return is_r500 || is_r400 ? 512 : 64; 186 case PIPE_SHADER_CAP_MAX_TEX_INSTRUCTIONS: 187 return is_r500 || is_r400 ? 512 : 32; 188 case PIPE_SHADER_CAP_MAX_TEX_INDIRECTIONS: 189 return is_r500 ? 511 : 4; 190 case PIPE_SHADER_CAP_MAX_CONTROL_FLOW_DEPTH: 191 return is_r500 ? 64 : 0; /* Actually unlimited on r500. */ 192 /* Fragment shader limits. */ 193 case PIPE_SHADER_CAP_MAX_INPUTS: 194 /* 2 colors + 8 texcoords are always supported 195 * (minus fog and wpos). 196 * 197 * R500 has the ability to turn 3rd and 4th color into 198 * additional texcoords but there is no two-sided color 199 * selection then. However the facing bit can be used instead. */ 200 return 10; 201 case PIPE_SHADER_CAP_MAX_CONSTS: 202 return is_r500 ? 256 : 32; 203 case PIPE_SHADER_CAP_MAX_CONST_BUFFERS: 204 return 1; 205 case PIPE_SHADER_CAP_MAX_TEMPS: 206 return is_r500 ? 128 : is_r400 ? 64 : 32; 207 case PIPE_SHADER_CAP_MAX_ADDRS: 208 return 0; 209 case PIPE_SHADER_CAP_MAX_PREDS: 210 return is_r500 ? 1 : 0; 211 case PIPE_SHADER_CAP_TGSI_CONT_SUPPORTED: 212 return 1; 213 case PIPE_SHADER_CAP_INDIRECT_INPUT_ADDR: 214 case PIPE_SHADER_CAP_INDIRECT_OUTPUT_ADDR: 215 case PIPE_SHADER_CAP_INDIRECT_TEMP_ADDR: 216 case PIPE_SHADER_CAP_INDIRECT_CONST_ADDR: 217 return 0; 218 case PIPE_SHADER_CAP_SUBROUTINES: 219 return 0; 220 } 221 break; 222 case PIPE_SHADER_VERTEX: 223 if (!r300screen->caps.has_tcl) { 224 return draw_get_shader_param(shader, param); 225 } 226 227 switch (param) 228 { 229 case PIPE_SHADER_CAP_MAX_INSTRUCTIONS: 230 case PIPE_SHADER_CAP_MAX_ALU_INSTRUCTIONS: 231 return is_r500 ? 1024 : 256; 232 case PIPE_SHADER_CAP_MAX_TEX_INSTRUCTIONS: 233 case PIPE_SHADER_CAP_MAX_TEX_INDIRECTIONS: 234 return 0; 235 case PIPE_SHADER_CAP_MAX_CONTROL_FLOW_DEPTH: 236 return is_r500 ? 4 : 0; /* For loops; not sure about conditionals. */ 237 case PIPE_SHADER_CAP_MAX_INPUTS: 238 return 16; 239 case PIPE_SHADER_CAP_MAX_CONSTS: 240 return 256; 241 case PIPE_SHADER_CAP_MAX_CONST_BUFFERS: 242 return 1; 243 case PIPE_SHADER_CAP_MAX_TEMPS: 244 return 32; 245 case PIPE_SHADER_CAP_MAX_ADDRS: 246 return 1; /* XXX guessed */ 247 case PIPE_SHADER_CAP_MAX_PREDS: 248 return is_r500 ? 4 : 0; /* XXX guessed. */ 249 case PIPE_SHADER_CAP_TGSI_CONT_SUPPORTED: 250 return 1; 251 case PIPE_SHADER_CAP_INDIRECT_INPUT_ADDR: 252 case PIPE_SHADER_CAP_INDIRECT_OUTPUT_ADDR: 253 case PIPE_SHADER_CAP_INDIRECT_TEMP_ADDR: 254 return 0; 255 case PIPE_SHADER_CAP_INDIRECT_CONST_ADDR: 256 return 1; 257 case PIPE_SHADER_CAP_SUBROUTINES: 258 return 0; 259 default: 260 break; 261 } 262 break; 263 default: 264 break; 265 } 266 return 0; 267} 268 269static float r300_get_paramf(struct pipe_screen* pscreen, enum pipe_cap param) 270{ 271 struct r300_screen* r300screen = r300_screen(pscreen); 272 273 switch (param) { 274 case PIPE_CAP_MAX_LINE_WIDTH: 275 case PIPE_CAP_MAX_LINE_WIDTH_AA: 276 case PIPE_CAP_MAX_POINT_WIDTH: 277 case PIPE_CAP_MAX_POINT_WIDTH_AA: 278 /* The maximum dimensions of the colorbuffer are our practical 279 * rendering limits. 2048 pixels should be enough for anybody. */ 280 if (r300screen->caps.is_r500) { 281 return 4096.0f; 282 } else if (r300screen->caps.is_r400) { 283 return 4021.0f; 284 } else { 285 return 2560.0f; 286 } 287 case PIPE_CAP_MAX_TEXTURE_ANISOTROPY: 288 return 16.0f; 289 case PIPE_CAP_MAX_TEXTURE_LOD_BIAS: 290 return 16.0f; 291 case PIPE_CAP_GUARD_BAND_LEFT: 292 case PIPE_CAP_GUARD_BAND_TOP: 293 case PIPE_CAP_GUARD_BAND_RIGHT: 294 case PIPE_CAP_GUARD_BAND_BOTTOM: 295 /* XXX I don't know what these should be but the least we can do is 296 * silence the potential error message */ 297 return 0.0f; 298 default: 299 debug_printf("r300: Warning: Unknown CAP %d in get_paramf.\n", 300 param); 301 return 0.0f; 302 } 303} 304 305static boolean r300_is_format_supported(struct pipe_screen* screen, 306 enum pipe_format format, 307 enum pipe_texture_target target, 308 unsigned sample_count, 309 unsigned usage, 310 unsigned geom_flags) 311{ 312 uint32_t retval = 0; 313 boolean is_r500 = r300_screen(screen)->caps.is_r500; 314 boolean is_r400 = r300_screen(screen)->caps.is_r400; 315 boolean is_color2101010 = format == PIPE_FORMAT_R10G10B10A2_UNORM || 316 format == PIPE_FORMAT_R10G10B10X2_SNORM || 317 format == PIPE_FORMAT_B10G10R10A2_UNORM || 318 format == PIPE_FORMAT_R10SG10SB10SA2U_NORM; 319 boolean is_ati1n = format == PIPE_FORMAT_RGTC1_UNORM || 320 format == PIPE_FORMAT_RGTC1_SNORM; 321 boolean is_ati2n = format == PIPE_FORMAT_RGTC2_UNORM || 322 format == PIPE_FORMAT_RGTC2_SNORM; 323 boolean is_half_float = format == PIPE_FORMAT_R16_FLOAT || 324 format == PIPE_FORMAT_R16G16_FLOAT || 325 format == PIPE_FORMAT_R16G16B16_FLOAT || 326 format == PIPE_FORMAT_R16G16B16A16_FLOAT; 327 328 /* Check multisampling support. */ 329 switch (sample_count) { 330 case 0: 331 case 1: 332 break; 333 case 2: 334 case 3: 335 case 4: 336 case 6: 337 return FALSE; 338#if 0 339 if (usage != PIPE_BIND_RENDER_TARGET || 340 !util_format_is_rgba8_variant( 341 util_format_description(format))) { 342 return FALSE; 343 } 344#endif 345 break; 346 default: 347 return FALSE; 348 } 349 350 /* Check sampler format support. */ 351 if ((usage & PIPE_BIND_SAMPLER_VIEW) && 352 /* ATI1N is r5xx-only. */ 353 (is_r500 || !is_ati1n) && 354 /* ATI2N is supported on r4xx-r5xx. */ 355 (is_r400 || is_r500 || !is_ati2n) && 356 r300_is_sampler_format_supported(format)) { 357 retval |= PIPE_BIND_SAMPLER_VIEW; 358 } 359 360 /* Check colorbuffer format support. */ 361 if ((usage & (PIPE_BIND_RENDER_TARGET | 362 PIPE_BIND_DISPLAY_TARGET | 363 PIPE_BIND_SCANOUT | 364 PIPE_BIND_SHARED)) && 365 /* 2101010 cannot be rendered to on non-r5xx. */ 366 (is_r500 || !is_color2101010) && 367 r300_is_colorbuffer_format_supported(format)) { 368 retval |= usage & 369 (PIPE_BIND_RENDER_TARGET | 370 PIPE_BIND_DISPLAY_TARGET | 371 PIPE_BIND_SCANOUT | 372 PIPE_BIND_SHARED); 373 } 374 375 /* Check depth-stencil format support. */ 376 if (usage & PIPE_BIND_DEPTH_STENCIL && 377 r300_is_zs_format_supported(format)) { 378 retval |= PIPE_BIND_DEPTH_STENCIL; 379 } 380 381 /* Check vertex buffer format support. */ 382 if (usage & PIPE_BIND_VERTEX_BUFFER && 383 /* Half float is supported on >= RV350. */ 384 (is_r400 || is_r500 || !is_half_float) && 385 r300_translate_vertex_data_type(format) != R300_INVALID_FORMAT) { 386 retval |= PIPE_BIND_VERTEX_BUFFER; 387 } 388 389 /* Transfers are always supported. */ 390 if (usage & PIPE_BIND_TRANSFER_READ) 391 retval |= PIPE_BIND_TRANSFER_READ; 392 if (usage & PIPE_BIND_TRANSFER_WRITE) 393 retval |= PIPE_BIND_TRANSFER_WRITE; 394 395 return retval == usage; 396} 397 398static void r300_destroy_screen(struct pipe_screen* pscreen) 399{ 400 struct r300_screen* r300screen = r300_screen(pscreen); 401 struct r300_winsys_screen *rws = r300_winsys_screen(pscreen); 402 403 util_slab_destroy(&r300screen->pool_buffers); 404 405 if (rws) 406 rws->destroy(rws); 407 408 FREE(r300screen); 409} 410 411static void r300_fence_reference(struct pipe_screen *screen, 412 struct pipe_fence_handle **ptr, 413 struct pipe_fence_handle *fence) 414{ 415 struct r300_fence **oldf = (struct r300_fence**)ptr; 416 struct r300_fence *newf = (struct r300_fence*)fence; 417 418 if (pipe_reference(&(*oldf)->reference, &newf->reference)) 419 FREE(*oldf); 420 421 *ptr = fence; 422} 423 424static int r300_fence_signalled(struct pipe_screen *screen, 425 struct pipe_fence_handle *fence, 426 unsigned flags) 427{ 428 struct r300_fence *rfence = (struct r300_fence*)fence; 429 430 return rfence->signalled ? 0 : 1; /* 0 == success */ 431} 432 433static int r300_fence_finish(struct pipe_screen *screen, 434 struct pipe_fence_handle *fence, 435 unsigned flags) 436{ 437 struct r300_fence *rfence = (struct r300_fence*)fence; 438 439 r300_finish(rfence->ctx); 440 rfence->signalled = TRUE; 441 return 0; /* 0 == success */ 442} 443 444struct pipe_screen* r300_screen_create(struct r300_winsys_screen *rws) 445{ 446 struct r300_screen *r300screen = CALLOC_STRUCT(r300_screen); 447 448 if (!r300screen) { 449 FREE(r300screen); 450 return NULL; 451 } 452 453 r300screen->caps.pci_id = rws->get_value(rws, R300_VID_PCI_ID); 454 r300screen->caps.num_frag_pipes = rws->get_value(rws, R300_VID_GB_PIPES); 455 r300screen->caps.num_z_pipes = rws->get_value(rws, R300_VID_Z_PIPES); 456 457 r300_init_debug(r300screen); 458 r300_parse_chipset(&r300screen->caps); 459 460 r300screen->caps.index_bias_supported = 461 r300screen->caps.is_r500 && 462 rws->get_value(rws, R300_VID_DRM_2_3_0); 463 464 util_slab_create(&r300screen->pool_buffers, 465 sizeof(struct r300_buffer), 64, 466 UTIL_SLAB_SINGLETHREADED); 467 468 r300screen->rws = rws; 469 r300screen->screen.winsys = (struct pipe_winsys*)rws; 470 r300screen->screen.destroy = r300_destroy_screen; 471 r300screen->screen.get_name = r300_get_name; 472 r300screen->screen.get_vendor = r300_get_vendor; 473 r300screen->screen.get_param = r300_get_param; 474 r300screen->screen.get_shader_param = r300_get_shader_param; 475 r300screen->screen.get_paramf = r300_get_paramf; 476 r300screen->screen.is_format_supported = r300_is_format_supported; 477 r300screen->screen.context_create = r300_create_context; 478 479 r300screen->screen.fence_reference = r300_fence_reference; 480 r300screen->screen.fence_signalled = r300_fence_signalled; 481 r300screen->screen.fence_finish = r300_fence_finish; 482 483 r300_init_screen_resource_functions(r300screen); 484 485 util_format_s3tc_init(); 486 487 return &r300screen->screen; 488} 489