r300_screen.c revision da7bd6a90e1fee5c16327338fd251c0f6be34e36
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/* Return the identifier behind whom the brave coders responsible for this 36 * amalgamation of code, sweat, and duct tape, routinely obscure their names. 37 * 38 * ...I should have just put "Corbin Simpson", but I'm not that cool. 39 * 40 * (Or egotistical. Yet.) */ 41static const char* r300_get_vendor(struct pipe_screen* pscreen) 42{ 43 return "X.Org R300 Project"; 44} 45 46static const char* chip_families[] = { 47 "R300", 48 "R350", 49 "R360", 50 "RV350", 51 "RV370", 52 "RV380", 53 "R420", 54 "R423", 55 "R430", 56 "R480", 57 "R481", 58 "RV410", 59 "RS400", 60 "RC410", 61 "RS480", 62 "RS482", 63 "RS600", 64 "RS690", 65 "RS740", 66 "RV515", 67 "R520", 68 "RV530", 69 "R580", 70 "RV560", 71 "RV570" 72}; 73 74static const char* r300_get_name(struct pipe_screen* pscreen) 75{ 76 struct r300_screen* r300screen = r300_screen(pscreen); 77 78 return chip_families[r300screen->caps.family]; 79} 80 81static int r300_get_param(struct pipe_screen* pscreen, enum pipe_cap param) 82{ 83 struct r300_screen* r300screen = r300_screen(pscreen); 84 boolean is_r400 = r300screen->caps.is_r400; 85 boolean is_r500 = r300screen->caps.is_r500; 86 87 /* XXX extended shader capabilities of r400 unimplemented */ 88 is_r400 = FALSE; 89 90 switch (param) { 91 /* Supported features (boolean caps). */ 92 case PIPE_CAP_NPOT_TEXTURES: 93 case PIPE_CAP_TWO_SIDED_STENCIL: 94 case PIPE_CAP_GLSL: 95 /* I'll be frank. This is a lie. 96 * 97 * We don't truly support GLSL on any of this driver's chipsets. 98 * To be fair, no chipset supports the full GLSL specification 99 * to the best of our knowledge, but some of the less esoteric 100 * features are still missing here. 101 * 102 * Rather than cripple ourselves intentionally, I'm going to set 103 * this flag, and as Gallium's interface continues to change, I 104 * hope that this single monolithic GLSL enable can slowly get 105 * split down into many different pieces and the state tracker 106 * will handle fallbacks transparently, like it should. 107 * 108 * ~ C. 109 */ 110 case PIPE_CAP_ANISOTROPIC_FILTER: 111 case PIPE_CAP_POINT_SPRITE: 112 case PIPE_CAP_OCCLUSION_QUERY: 113 case PIPE_CAP_TEXTURE_SHADOW_MAP: 114 case PIPE_CAP_TEXTURE_MIRROR_CLAMP: 115 case PIPE_CAP_TEXTURE_MIRROR_REPEAT: 116 case PIPE_CAP_BLEND_EQUATION_SEPARATE: 117 case PIPE_CAP_TEXTURE_SWIZZLE: 118 return 1; 119 120 /* Unsupported features (boolean caps). */ 121 case PIPE_CAP_TIMER_QUERY: 122 case PIPE_CAP_DUAL_SOURCE_BLEND: 123 case PIPE_CAP_TGSI_CONT_SUPPORTED: 124 case PIPE_CAP_INDEP_BLEND_ENABLE: 125 case PIPE_CAP_INDEP_BLEND_FUNC: 126 return 0; 127 128 /* Texturing. */ 129 case PIPE_CAP_MAX_TEXTURE_IMAGE_UNITS: 130 case PIPE_CAP_MAX_COMBINED_SAMPLERS: 131 return r300screen->caps.num_tex_units; 132 case PIPE_CAP_MAX_VERTEX_TEXTURE_UNITS: 133 return 0; 134 case PIPE_CAP_MAX_TEXTURE_2D_LEVELS: 135 case PIPE_CAP_MAX_TEXTURE_3D_LEVELS: 136 case PIPE_CAP_MAX_TEXTURE_CUBE_LEVELS: 137 /* 13 == 4096, 12 == 2048 */ 138 return is_r500 ? 13 : 12; 139 140 /* Render targets. */ 141 case PIPE_CAP_MAX_RENDER_TARGETS: 142 return 4; 143 144 /* General shader limits and features. */ 145 case PIPE_CAP_SM3: 146 return is_r500 ? 1 : 0; 147 case PIPE_CAP_MAX_CONST_BUFFERS: 148 return 1; 149 case PIPE_CAP_MAX_CONST_BUFFER_SIZE: 150 return 256; 151 152 case PIPE_CAP_DEPTHSTENCIL_CLEAR_SEPARATE: 153 return 1; 154 155 /* Fragment coordinate conventions. */ 156 case PIPE_CAP_TGSI_FS_COORD_ORIGIN_UPPER_LEFT: 157 case PIPE_CAP_TGSI_FS_COORD_PIXEL_CENTER_HALF_INTEGER: 158 return 1; 159 case PIPE_CAP_TGSI_FS_COORD_ORIGIN_LOWER_LEFT: 160 case PIPE_CAP_TGSI_FS_COORD_PIXEL_CENTER_INTEGER: 161 return 0; 162 163 /* Fragment shader limits. */ 164 case PIPE_CAP_MAX_FS_INSTRUCTIONS: 165 return is_r500 || is_r400 ? 512 : 96; 166 case PIPE_CAP_MAX_FS_ALU_INSTRUCTIONS: 167 return is_r500 || is_r400 ? 512 : 64; 168 case PIPE_CAP_MAX_FS_TEX_INSTRUCTIONS: 169 return is_r500 || is_r400 ? 512 : 32; 170 case PIPE_CAP_MAX_FS_TEX_INDIRECTIONS: 171 return is_r500 ? 511 : 4; 172 case PIPE_CAP_MAX_FS_CONTROL_FLOW_DEPTH: 173 return is_r500 ? 64 : 0; /* Actually unlimited on r500. */ 174 case PIPE_CAP_MAX_FS_INPUTS: 175 /* 2 colors + 8 texcoords are always supported 176 * (minus fog and wpos). 177 * 178 * R500 has the ability to turn 3rd and 4th color into 179 * additional texcoords but there is no two-sided color 180 * selection then. However the facing bit can be used instead. */ 181 return 10; 182 case PIPE_CAP_MAX_FS_CONSTS: 183 return is_r500 ? 256 : 32; 184 case PIPE_CAP_MAX_FS_TEMPS: 185 return is_r500 ? 128 : is_r400 ? 64 : 32; 186 case PIPE_CAP_MAX_FS_ADDRS: 187 return 0; 188 case PIPE_CAP_MAX_FS_PREDS: 189 return is_r500 ? 1 : 0; 190 191 /* Vertex shader limits. */ 192 case PIPE_CAP_MAX_VS_INSTRUCTIONS: 193 case PIPE_CAP_MAX_VS_ALU_INSTRUCTIONS: 194 return is_r500 ? 1024 : 256; 195 case PIPE_CAP_MAX_VS_TEX_INSTRUCTIONS: 196 case PIPE_CAP_MAX_VS_TEX_INDIRECTIONS: 197 return 0; 198 case PIPE_CAP_MAX_VS_CONTROL_FLOW_DEPTH: 199 return is_r500 ? 4 : 0; /* For loops; not sure about conditionals. */ 200 case PIPE_CAP_MAX_VS_INPUTS: 201 return 16; 202 case PIPE_CAP_MAX_VS_CONSTS: 203 return 256; 204 case PIPE_CAP_MAX_VS_TEMPS: 205 return 32; 206 case PIPE_CAP_MAX_VS_ADDRS: 207 return 1; /* XXX guessed */ 208 case PIPE_CAP_MAX_VS_PREDS: 209 return is_r500 ? 4 : 0; /* XXX guessed. */ 210 case PIPE_CAP_GEOMETRY_SHADER4: 211 return 0; 212 213 default: 214 fprintf(stderr, "r300: Implementation error: Bad param %d\n", 215 param); 216 return 0; 217 } 218} 219 220static float r300_get_paramf(struct pipe_screen* pscreen, enum pipe_cap param) 221{ 222 struct r300_screen* r300screen = r300_screen(pscreen); 223 224 switch (param) { 225 case PIPE_CAP_MAX_LINE_WIDTH: 226 case PIPE_CAP_MAX_LINE_WIDTH_AA: 227 case PIPE_CAP_MAX_POINT_WIDTH: 228 case PIPE_CAP_MAX_POINT_WIDTH_AA: 229 /* The maximum dimensions of the colorbuffer are our practical 230 * rendering limits. 2048 pixels should be enough for anybody. */ 231 if (r300screen->caps.is_r500) { 232 return 4096.0f; 233 } else if (r300screen->caps.is_r400) { 234 return 4021.0f; 235 } else { 236 return 2560.0f; 237 } 238 case PIPE_CAP_MAX_TEXTURE_ANISOTROPY: 239 return 16.0f; 240 case PIPE_CAP_MAX_TEXTURE_LOD_BIAS: 241 return 16.0f; 242 default: 243 fprintf(stderr, "r300: Implementation error: Bad paramf %d\n", 244 param); 245 return 0.0f; 246 } 247} 248 249static boolean r300_is_format_supported(struct pipe_screen* screen, 250 enum pipe_format format, 251 enum pipe_texture_target target, 252 unsigned sample_count, 253 unsigned usage, 254 unsigned geom_flags) 255{ 256 uint32_t retval = 0; 257 boolean is_r500 = r300_screen(screen)->caps.is_r500; 258 boolean is_r400 = r300_screen(screen)->caps.is_r400; 259 boolean is_rv350 = r300_screen(screen)->caps.is_rv350; 260 boolean is_z24 = format == PIPE_FORMAT_X8Z24_UNORM || 261 format == PIPE_FORMAT_S8_USCALED_Z24_UNORM; 262 boolean is_color2101010 = format == PIPE_FORMAT_R10G10B10A2_UNORM || 263 format == PIPE_FORMAT_R10G10B10X2_SNORM || 264 format == PIPE_FORMAT_B10G10R10A2_UNORM || 265 format == PIPE_FORMAT_R10SG10SB10SA2U_NORM; 266 boolean is_ati1n = format == PIPE_FORMAT_RGTC1_UNORM || 267 format == PIPE_FORMAT_RGTC1_SNORM; 268 boolean is_ati2n = format == PIPE_FORMAT_RGTC2_UNORM || 269 format == PIPE_FORMAT_RGTC2_SNORM; 270 boolean is_half_float = format == PIPE_FORMAT_R16_FLOAT || 271 format == PIPE_FORMAT_R16G16_FLOAT || 272 format == PIPE_FORMAT_R16G16B16_FLOAT || 273 format == PIPE_FORMAT_R16G16B16A16_FLOAT; 274 275 switch (sample_count) { 276 case 0: 277 case 1: 278 break; 279 case 2: 280 case 3: 281 case 4: 282 case 6: 283 if (usage != PIPE_BIND_RENDER_TARGET || 284 !util_format_is_rgba8_variant( 285 util_format_description(format))) { 286 return FALSE; 287 } 288 break; 289 default: 290 return FALSE; 291 } 292 293 /* Check sampler format support. */ 294 if ((usage & PIPE_BIND_SAMPLER_VIEW) && 295 /* Z24 cannot be sampled from on non-r5xx. */ 296 (is_r500 || !is_z24) && 297 /* ATI1N is r5xx-only. */ 298 (is_r500 || !is_ati1n) && 299 /* ATI2N is supported on r4xx-r5xx. */ 300 (is_r400 || is_r500 || !is_ati2n) && 301 r300_is_sampler_format_supported(format)) { 302 retval |= PIPE_BIND_SAMPLER_VIEW; 303 } 304 305 /* Check colorbuffer format support. */ 306 if ((usage & (PIPE_BIND_RENDER_TARGET | 307 PIPE_BIND_DISPLAY_TARGET | 308 PIPE_BIND_SCANOUT | 309 PIPE_BIND_SHARED)) && 310 /* 2101010 cannot be rendered to on non-r5xx. */ 311 (is_r500 || !is_color2101010) && 312 r300_is_colorbuffer_format_supported(format)) { 313 retval |= usage & 314 (PIPE_BIND_RENDER_TARGET | 315 PIPE_BIND_DISPLAY_TARGET | 316 PIPE_BIND_SCANOUT | 317 PIPE_BIND_SHARED); 318 } 319 320 /* Check depth-stencil format support. */ 321 if (usage & PIPE_BIND_DEPTH_STENCIL && 322 r300_is_zs_format_supported(format)) { 323 retval |= PIPE_BIND_DEPTH_STENCIL; 324 } 325 326 /* Check vertex buffer format support. */ 327 if (usage & PIPE_BIND_VERTEX_BUFFER && 328 /* Half float is supported on >= RV350. */ 329 (is_rv350 || !is_half_float) && 330 r300_translate_vertex_data_type(format) != R300_INVALID_FORMAT) { 331 retval |= PIPE_BIND_VERTEX_BUFFER; 332 } 333 334 /* Transfers are always supported. */ 335 if (usage & PIPE_BIND_TRANSFER_READ) 336 retval |= PIPE_BIND_TRANSFER_READ; 337 if (usage & PIPE_BIND_TRANSFER_WRITE) 338 retval |= PIPE_BIND_TRANSFER_WRITE; 339 340 return retval == usage; 341} 342 343static void r300_destroy_screen(struct pipe_screen* pscreen) 344{ 345 struct r300_screen* r300screen = r300_screen(pscreen); 346 struct r300_winsys_screen *rws = r300_winsys_screen(pscreen); 347 348 if (rws) 349 rws->destroy(rws); 350 351 FREE(r300screen); 352} 353 354static void r300_fence_reference(struct pipe_screen *screen, 355 struct pipe_fence_handle **ptr, 356 struct pipe_fence_handle *fence) 357{ 358 struct r300_fence **oldf = (struct r300_fence**)ptr; 359 struct r300_fence *newf = (struct r300_fence*)fence; 360 361 if (pipe_reference(&(*oldf)->reference, &newf->reference)) 362 FREE(*oldf); 363 364 *ptr = fence; 365} 366 367static int r300_fence_signalled(struct pipe_screen *screen, 368 struct pipe_fence_handle *fence, 369 unsigned flags) 370{ 371 struct r300_fence *rfence = (struct r300_fence*)fence; 372 373 return rfence->signalled ? 0 : 1; /* 0 == success */ 374} 375 376static int r300_fence_finish(struct pipe_screen *screen, 377 struct pipe_fence_handle *fence, 378 unsigned flags) 379{ 380 struct r300_fence *rfence = (struct r300_fence*)fence; 381 382 r300_finish(rfence->ctx); 383 rfence->signalled = TRUE; 384 return 0; /* 0 == success */ 385} 386 387struct pipe_screen* r300_screen_create(struct r300_winsys_screen *rws) 388{ 389 struct r300_screen *r300screen = CALLOC_STRUCT(r300_screen); 390 391 if (!r300screen) { 392 FREE(r300screen); 393 return NULL; 394 } 395 396 r300screen->caps.pci_id = rws->get_value(rws, R300_VID_PCI_ID); 397 r300screen->caps.num_frag_pipes = rws->get_value(rws, R300_VID_GB_PIPES); 398 r300screen->caps.num_z_pipes = rws->get_value(rws, R300_VID_Z_PIPES); 399 400 r300_init_debug(r300screen); 401 r300_parse_chipset(&r300screen->caps); 402 403 r300screen->rws = rws; 404 r300screen->screen.winsys = (struct pipe_winsys*)rws; 405 r300screen->screen.destroy = r300_destroy_screen; 406 r300screen->screen.get_name = r300_get_name; 407 r300screen->screen.get_vendor = r300_get_vendor; 408 r300screen->screen.get_param = r300_get_param; 409 r300screen->screen.get_paramf = r300_get_paramf; 410 r300screen->screen.is_format_supported = r300_is_format_supported; 411 r300screen->screen.context_create = r300_create_context; 412 413 r300screen->screen.fence_reference = r300_fence_reference; 414 r300screen->screen.fence_signalled = r300_fence_signalled; 415 r300screen->screen.fence_finish = r300_fence_finish; 416 417 r300_init_screen_resource_functions(r300screen); 418 419 util_format_s3tc_init(); 420 421 return &r300screen->screen; 422} 423 424struct r300_winsys_screen * 425r300_winsys_screen(struct pipe_screen *screen) 426{ 427 return r300_screen(screen)->rws; 428} 429