r300_screen.c revision 10baf7ec1d31552a268c38422619abc131a37e2b
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_winsys.h" 32 33/* Return the identifier behind whom the brave coders responsible for this 34 * amalgamation of code, sweat, and duct tape, routinely obscure their names. 35 * 36 * ...I should have just put "Corbin Simpson", but I'm not that cool. 37 * 38 * (Or egotistical. Yet.) */ 39static const char* r300_get_vendor(struct pipe_screen* pscreen) 40{ 41 return "X.Org R300 Project"; 42} 43 44static const char* chip_families[] = { 45 "R300", 46 "R350", 47 "R360", 48 "RV350", 49 "RV370", 50 "RV380", 51 "R420", 52 "R423", 53 "R430", 54 "R480", 55 "R481", 56 "RV410", 57 "RS400", 58 "RC410", 59 "RS480", 60 "RS482", 61 "RS600", 62 "RS690", 63 "RS740", 64 "RV515", 65 "R520", 66 "RV530", 67 "R580", 68 "RV560", 69 "RV570" 70}; 71 72static const char* r300_get_name(struct pipe_screen* pscreen) 73{ 74 struct r300_screen* r300screen = r300_screen(pscreen); 75 76 return chip_families[r300screen->caps.family]; 77} 78 79static int r300_get_param(struct pipe_screen* pscreen, enum pipe_cap param) 80{ 81 struct r300_screen* r300screen = r300_screen(pscreen); 82 boolean is_r400 = r300screen->caps.is_r400; 83 boolean is_r500 = r300screen->caps.is_r500; 84 85 /* XXX extended shader capabilities of r400 unimplemented */ 86 is_r400 = FALSE; 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_GLSL: 93 /* I'll be frank. This is a lie. 94 * 95 * We don't truly support GLSL on any of this driver's chipsets. 96 * To be fair, no chipset supports the full GLSL specification 97 * to the best of our knowledge, but some of the less esoteric 98 * features are still missing here. 99 * 100 * Rather than cripple ourselves intentionally, I'm going to set 101 * this flag, and as Gallium's interface continues to change, I 102 * hope that this single monolithic GLSL enable can slowly get 103 * split down into many different pieces and the state tracker 104 * will handle fallbacks transparently, like it should. 105 * 106 * ~ C. 107 */ 108 case PIPE_CAP_ANISOTROPIC_FILTER: 109 case PIPE_CAP_POINT_SPRITE: 110 case PIPE_CAP_OCCLUSION_QUERY: 111 case PIPE_CAP_TEXTURE_SHADOW_MAP: 112 case PIPE_CAP_TEXTURE_MIRROR_CLAMP: 113 case PIPE_CAP_TEXTURE_MIRROR_REPEAT: 114 case PIPE_CAP_BLEND_EQUATION_SEPARATE: 115 return 1; 116 117 /* Unsupported features (boolean caps). */ 118 case PIPE_CAP_TIMER_QUERY: 119 case PIPE_CAP_DUAL_SOURCE_BLEND: 120 case PIPE_CAP_TGSI_CONT_SUPPORTED: 121 case PIPE_CAP_INDEP_BLEND_ENABLE: 122 case PIPE_CAP_INDEP_BLEND_FUNC: 123 return 0; 124 125 /* Texturing. */ 126 case PIPE_CAP_MAX_TEXTURE_IMAGE_UNITS: 127 case PIPE_CAP_MAX_COMBINED_SAMPLERS: 128 return r300screen->caps.num_tex_units; 129 case PIPE_CAP_MAX_VERTEX_TEXTURE_UNITS: 130 return 0; 131 case PIPE_CAP_MAX_TEXTURE_2D_LEVELS: 132 case PIPE_CAP_MAX_TEXTURE_3D_LEVELS: 133 case PIPE_CAP_MAX_TEXTURE_CUBE_LEVELS: 134 /* 13 == 4096, 12 == 2048 */ 135 return is_r500 ? 13 : 12; 136 137 /* Render targets. */ 138 case PIPE_CAP_MAX_RENDER_TARGETS: 139 return 4; 140 141 /* General shader limits and features. */ 142 case PIPE_CAP_SM3: 143 return is_r500 ? 1 : 0; 144 case PIPE_CAP_MAX_CONST_BUFFERS: 145 return 1; 146 case PIPE_CAP_MAX_CONST_BUFFER_SIZE: 147 return 256; 148 149 case PIPE_CAP_DEPTHSTENCIL_CLEAR_SEPARATE: 150 return 1; 151 152 /* Fragment coordinate conventions. */ 153 case PIPE_CAP_TGSI_FS_COORD_ORIGIN_UPPER_LEFT: 154 case PIPE_CAP_TGSI_FS_COORD_PIXEL_CENTER_HALF_INTEGER: 155 return 1; 156 case PIPE_CAP_TGSI_FS_COORD_ORIGIN_LOWER_LEFT: 157 case PIPE_CAP_TGSI_FS_COORD_PIXEL_CENTER_INTEGER: 158 return 0; 159 160 /* Fragment shader limits. */ 161 case PIPE_CAP_MAX_FS_INSTRUCTIONS: 162 return is_r500 || is_r400 ? 512 : 96; 163 case PIPE_CAP_MAX_FS_ALU_INSTRUCTIONS: 164 return is_r500 || is_r400 ? 512 : 64; 165 case PIPE_CAP_MAX_FS_TEX_INSTRUCTIONS: 166 return is_r500 || is_r400 ? 512 : 32; 167 case PIPE_CAP_MAX_FS_TEX_INDIRECTIONS: 168 return is_r500 ? 511 : 4; 169 case PIPE_CAP_MAX_FS_CONTROL_FLOW_DEPTH: 170 return is_r500 ? 64 : 0; /* Actually unlimited on r500. */ 171 case PIPE_CAP_MAX_FS_INPUTS: 172 /* 2 colors + 8 texcoords are always supported 173 * (minus fog and wpos). 174 * 175 * R500 has the ability to turn 3rd and 4th color into 176 * additional texcoords but there is no two-sided color 177 * selection then. However the facing bit can be used instead. */ 178 return 10; 179 case PIPE_CAP_MAX_FS_CONSTS: 180 return is_r500 ? 256 : 32; 181 case PIPE_CAP_MAX_FS_TEMPS: 182 return is_r500 ? 128 : is_r400 ? 64 : 32; 183 case PIPE_CAP_MAX_FS_ADDRS: 184 return 0; 185 case PIPE_CAP_MAX_FS_PREDS: 186 return is_r500 ? 1 : 0; 187 188 /* Vertex shader limits. */ 189 case PIPE_CAP_MAX_VS_INSTRUCTIONS: 190 case PIPE_CAP_MAX_VS_ALU_INSTRUCTIONS: 191 return is_r500 ? 1024 : 256; 192 case PIPE_CAP_MAX_VS_TEX_INSTRUCTIONS: 193 case PIPE_CAP_MAX_VS_TEX_INDIRECTIONS: 194 return 0; 195 case PIPE_CAP_MAX_VS_CONTROL_FLOW_DEPTH: 196 return is_r500 ? 4 : 0; /* For loops; not sure about conditionals. */ 197 case PIPE_CAP_MAX_VS_INPUTS: 198 return 16; 199 case PIPE_CAP_MAX_VS_CONSTS: 200 return 256; 201 case PIPE_CAP_MAX_VS_TEMPS: 202 return 32; 203 case PIPE_CAP_MAX_VS_ADDRS: 204 return 1; /* XXX guessed */ 205 case PIPE_CAP_MAX_VS_PREDS: 206 return is_r500 ? 4 : 0; /* XXX guessed. */ 207 208 default: 209 fprintf(stderr, "r300: Implementation error: Bad param %d\n", 210 param); 211 return 0; 212 } 213} 214 215static float r300_get_paramf(struct pipe_screen* pscreen, enum pipe_cap param) 216{ 217 struct r300_screen* r300screen = r300_screen(pscreen); 218 219 switch (param) { 220 case PIPE_CAP_MAX_LINE_WIDTH: 221 case PIPE_CAP_MAX_LINE_WIDTH_AA: 222 case PIPE_CAP_MAX_POINT_WIDTH: 223 case PIPE_CAP_MAX_POINT_WIDTH_AA: 224 /* The maximum dimensions of the colorbuffer are our practical 225 * rendering limits. 2048 pixels should be enough for anybody. */ 226 if (r300screen->caps.is_r500) { 227 return 4096.0f; 228 } else if (r300screen->caps.is_r400) { 229 return 4021.0f; 230 } else { 231 return 2560.0f; 232 } 233 case PIPE_CAP_MAX_TEXTURE_ANISOTROPY: 234 return 16.0f; 235 case PIPE_CAP_MAX_TEXTURE_LOD_BIAS: 236 return 16.0f; 237 default: 238 fprintf(stderr, "r300: Implementation error: Bad paramf %d\n", 239 param); 240 return 0.0f; 241 } 242} 243 244static boolean r300_is_format_supported(struct pipe_screen* screen, 245 enum pipe_format format, 246 enum pipe_texture_target target, 247 unsigned sample_count, 248 unsigned usage, 249 unsigned geom_flags) 250{ 251 uint32_t retval = 0; 252 boolean is_r500 = r300_screen(screen)->caps.is_r500; 253 boolean is_r400 = r300_screen(screen)->caps.is_r400; 254 boolean is_z24 = format == PIPE_FORMAT_X8Z24_UNORM || 255 format == PIPE_FORMAT_S8_USCALED_Z24_UNORM; 256 boolean is_color2101010 = format == PIPE_FORMAT_R10G10B10A2_UNORM || 257 format == PIPE_FORMAT_R10G10B10X2_SNORM || 258 format == PIPE_FORMAT_B10G10R10A2_UNORM || 259 format == PIPE_FORMAT_R10SG10SB10SA2U_NORM; 260 boolean is_ati1n = format == PIPE_FORMAT_RGTC1_UNORM || 261 format == PIPE_FORMAT_RGTC1_SNORM; 262 boolean is_ati2n = format == PIPE_FORMAT_RGTC2_UNORM || 263 format == PIPE_FORMAT_RGTC2_SNORM; 264 265 if (target >= PIPE_MAX_TEXTURE_TYPES) { 266 fprintf(stderr, "r300: Implementation error: Received bogus texture " 267 "target %d in %s\n", target, __FUNCTION__); 268 return FALSE; 269 } 270 271 if (sample_count > 1) 272 return FALSE; 273 274 /* Check sampler format support. */ 275 if ((usage & PIPE_BIND_SAMPLER_VIEW) && 276 /* Z24 cannot be sampled from on non-r5xx. */ 277 (is_r500 || !is_z24) && 278 /* ATI1N is r5xx-only. */ 279 (is_r500 || !is_ati1n) && 280 /* ATI2N is supported on r4xx-r5xx. */ 281 (is_r400 || is_r500 || !is_ati2n) && 282 r300_is_sampler_format_supported(format)) { 283 retval |= PIPE_BIND_SAMPLER_VIEW; 284 } 285 286 /* Check colorbuffer format support. */ 287 if ((usage & (PIPE_BIND_RENDER_TARGET | 288 PIPE_BIND_DISPLAY_TARGET | 289 PIPE_BIND_SCANOUT | 290 PIPE_BIND_SHARED)) && 291 /* 2101010 cannot be rendered to on non-r5xx. */ 292 (is_r500 || !is_color2101010) && 293 r300_is_colorbuffer_format_supported(format)) { 294 retval |= usage & 295 (PIPE_BIND_RENDER_TARGET | 296 PIPE_BIND_DISPLAY_TARGET | 297 PIPE_BIND_SCANOUT | 298 PIPE_BIND_SHARED); 299 } 300 301 /* Check depth-stencil format support. */ 302 if (usage & PIPE_BIND_DEPTH_STENCIL && 303 r300_is_zs_format_supported(format)) { 304 retval |= PIPE_BIND_DEPTH_STENCIL; 305 } 306 307 return retval == usage; 308} 309 310static void r300_destroy_screen(struct pipe_screen* pscreen) 311{ 312 struct r300_screen* r300screen = r300_screen(pscreen); 313 struct r300_winsys_screen *rws = r300_winsys_screen(pscreen); 314 315 if (rws) 316 rws->destroy(rws); 317 318 FREE(r300screen); 319} 320 321static void r300_fence_reference(struct pipe_screen *screen, 322 struct pipe_fence_handle **ptr, 323 struct pipe_fence_handle *fence) 324{ 325 struct r300_fence **oldf = (struct r300_fence**)ptr; 326 struct r300_fence *newf = (struct r300_fence*)fence; 327 328 if (pipe_reference(&(*oldf)->reference, &newf->reference)) 329 FREE(*oldf); 330 331 *ptr = fence; 332} 333 334static int r300_fence_signalled(struct pipe_screen *screen, 335 struct pipe_fence_handle *fence, 336 unsigned flags) 337{ 338 struct r300_fence *rfence = (struct r300_fence*)fence; 339 340 return rfence->signalled ? 0 : 1; /* 0 == success */ 341} 342 343static int r300_fence_finish(struct pipe_screen *screen, 344 struct pipe_fence_handle *fence, 345 unsigned flags) 346{ 347 struct r300_fence *rfence = (struct r300_fence*)fence; 348 349 r300_finish(rfence->ctx); 350 rfence->signalled = TRUE; 351 return 0; /* 0 == success */ 352} 353 354struct pipe_screen* r300_create_screen(struct r300_winsys_screen *rws) 355{ 356 struct r300_screen *r300screen = CALLOC_STRUCT(r300_screen); 357 358 if (!r300screen) { 359 FREE(r300screen); 360 return NULL; 361 } 362 363 r300screen->caps.pci_id = rws->get_value(rws, R300_VID_PCI_ID); 364 r300screen->caps.num_frag_pipes = rws->get_value(rws, R300_VID_GB_PIPES); 365 r300screen->caps.num_z_pipes = rws->get_value(rws, R300_VID_Z_PIPES); 366 367 r300_init_debug(r300screen); 368 r300_parse_chipset(&r300screen->caps); 369 370 r300screen->rws = rws; 371 r300screen->screen.winsys = (struct pipe_winsys*)rws; 372 r300screen->screen.destroy = r300_destroy_screen; 373 r300screen->screen.get_name = r300_get_name; 374 r300screen->screen.get_vendor = r300_get_vendor; 375 r300screen->screen.get_param = r300_get_param; 376 r300screen->screen.get_paramf = r300_get_paramf; 377 r300screen->screen.is_format_supported = r300_is_format_supported; 378 r300screen->screen.context_create = r300_create_context; 379 380 r300screen->screen.fence_reference = r300_fence_reference; 381 r300screen->screen.fence_signalled = r300_fence_signalled; 382 r300screen->screen.fence_finish = r300_fence_finish; 383 384 r300_init_screen_resource_functions(r300screen); 385 386 util_format_s3tc_init(); 387 388 return &r300screen->screen; 389} 390 391struct r300_winsys_screen * 392r300_winsys_screen(struct pipe_screen *screen) 393{ 394 return r300_screen(screen)->rws; 395} 396