r300_screen.c revision d3d3345cb840bdfb4a0040ca86e8a588e9b68051
1/* 2 * Copyright 2008 Corbin Simpson <MostAwesomeDude@gmail.com> 3 * 4 * Permission is hereby granted, free of charge, to any person obtaining a 5 * copy of this software and associated documentation files (the "Software"), 6 * to deal in the Software without restriction, including without limitation 7 * on the rights to use, copy, modify, merge, publish, distribute, sub 8 * license, and/or sell copies of the Software, and to permit persons to whom 9 * the Software is furnished to do so, subject to the following conditions: 10 * 11 * The above copyright notice and this permission notice (including the next 12 * paragraph) shall be included in all copies or substantial portions of the 13 * Software. 14 * 15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 16 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 17 * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL 18 * THE AUTHOR(S) AND/OR THEIR SUPPLIERS BE LIABLE FOR ANY CLAIM, 19 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR 20 * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE 21 * USE OR OTHER DEALINGS IN THE SOFTWARE. */ 22 23#include "util/u_inlines.h" 24#include "util/u_format.h" 25#include "util/u_memory.h" 26#include "util/u_simple_screen.h" 27 28#include "r300_context.h" 29#include "r300_screen.h" 30#include "r300_texture.h" 31 32#include "radeon_winsys.h" 33#include "r300_winsys.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, int param) 82{ 83 struct r300_screen* r300screen = r300_screen(pscreen); 84 85 switch (param) { 86 case PIPE_CAP_MAX_TEXTURE_IMAGE_UNITS: 87 case PIPE_CAP_MAX_COMBINED_SAMPLERS: 88 /* XXX I'm told this goes up to 16 */ 89 return 8; 90 case PIPE_CAP_NPOT_TEXTURES: 91 /* XXX enable now to get GL2.1 API, 92 * figure out later how to emulate this */ 93 return 1; 94 case PIPE_CAP_TWO_SIDED_STENCIL: 95 if (r300screen->caps->is_r500) { 96 return 1; 97 } else { 98 return 0; 99 } 100 case PIPE_CAP_GLSL: 101 /* I'll be frank. This is a lie. 102 * 103 * We don't truly support GLSL on any of this driver's chipsets. 104 * To be fair, no chipset supports the full GLSL specification 105 * to the best of our knowledge, but some of the less esoteric 106 * features are still missing here. 107 * 108 * Rather than cripple ourselves intentionally, I'm going to set 109 * this flag, and as Gallium's interface continues to change, I 110 * hope that this single monolithic GLSL enable can slowly get 111 * split down into many different pieces and the state tracker 112 * will handle fallbacks transparently, like it should. 113 * 114 * ~ C. 115 */ 116 return 1; 117 case PIPE_CAP_DUAL_SOURCE_BLEND: 118 return 0; 119 case PIPE_CAP_ANISOTROPIC_FILTER: 120 return 1; 121 case PIPE_CAP_POINT_SPRITE: 122 return 1; 123 case PIPE_CAP_MAX_RENDER_TARGETS: 124 return 4; 125 case PIPE_CAP_OCCLUSION_QUERY: 126 return 1; 127 case PIPE_CAP_TEXTURE_SHADOW_MAP: 128 return 1; 129 case PIPE_CAP_MAX_TEXTURE_2D_LEVELS: 130 case PIPE_CAP_MAX_TEXTURE_3D_LEVELS: 131 case PIPE_CAP_MAX_TEXTURE_CUBE_LEVELS: 132 if (r300screen->caps->is_r500) { 133 /* 13 == 4096 */ 134 return 13; 135 } else { 136 /* 12 == 2048 */ 137 return 12; 138 } 139 case PIPE_CAP_TEXTURE_MIRROR_CLAMP: 140 return 1; 141 case PIPE_CAP_TEXTURE_MIRROR_REPEAT: 142 return 1; 143 case PIPE_CAP_MAX_VERTEX_TEXTURE_UNITS: 144 return 0; 145 case PIPE_CAP_TGSI_CONT_SUPPORTED: 146 return 0; 147 case PIPE_CAP_BLEND_EQUATION_SEPARATE: 148 return 1; 149 case PIPE_CAP_SM3: 150 if (r300screen->caps->is_r500) { 151 return 1; 152 } else { 153 return 0; 154 } 155 case PIPE_CAP_MAX_CONST_BUFFERS: 156 return 1; 157 case PIPE_CAP_MAX_CONST_BUFFER_SIZE: 158 return 256; 159 case PIPE_CAP_INDEP_BLEND_ENABLE: 160 return 0; 161 case PIPE_CAP_INDEP_BLEND_FUNC: 162 return 0; 163 case PIPE_CAP_TGSI_FS_COORD_ORIGIN_UPPER_LEFT: 164 case PIPE_CAP_TGSI_FS_COORD_PIXEL_CENTER_HALF_INTEGER: 165 return 1; 166 case PIPE_CAP_TGSI_FS_COORD_ORIGIN_LOWER_LEFT: 167 case PIPE_CAP_TGSI_FS_COORD_PIXEL_CENTER_INTEGER: 168 return 0; 169 default: 170 debug_printf("r300: Implementation error: Bad param %d\n", 171 param); 172 return 0; 173 } 174} 175 176static float r300_get_paramf(struct pipe_screen* pscreen, int param) 177{ 178 struct r300_screen* r300screen = r300_screen(pscreen); 179 180 switch (param) { 181 case PIPE_CAP_MAX_LINE_WIDTH: 182 case PIPE_CAP_MAX_LINE_WIDTH_AA: 183 case PIPE_CAP_MAX_POINT_WIDTH: 184 case PIPE_CAP_MAX_POINT_WIDTH_AA: 185 /* The maximum dimensions of the colorbuffer are our practical 186 * rendering limits. 2048 pixels should be enough for anybody. */ 187 if (r300screen->caps->is_r500) { 188 return 4096.0f; 189 } else if (r300screen->caps->is_r400) { 190 return 4021.0f; 191 } else { 192 return 2560.0f; 193 } 194 case PIPE_CAP_MAX_TEXTURE_ANISOTROPY: 195 return 16.0f; 196 case PIPE_CAP_MAX_TEXTURE_LOD_BIAS: 197 return 16.0f; 198 default: 199 debug_printf("r300: Implementation error: Bad paramf %d\n", 200 param); 201 return 0.0f; 202 } 203} 204 205static boolean r300_is_format_supported(struct pipe_screen* screen, 206 enum pipe_format format, 207 enum pipe_texture_target target, 208 unsigned usage, 209 unsigned geom_flags) 210{ 211 uint32_t retval = 0; 212 boolean is_r500 = r300_screen(screen)->caps->is_r500; 213 214 if (target >= PIPE_MAX_TEXTURE_TYPES) { 215 debug_printf("r300: Implementation error: Received bogus texture " 216 "target %d in %s\n", target, __FUNCTION__); 217 return FALSE; 218 } 219 220 switch (format) { 221 /* Supported formats. */ 222 /* Colorbuffer */ 223 case PIPE_FORMAT_A8_UNORM: 224 case PIPE_FORMAT_L8_UNORM: 225 retval = usage & 226 (PIPE_TEXTURE_USAGE_RENDER_TARGET | 227 PIPE_TEXTURE_USAGE_DISPLAY_TARGET | 228 PIPE_TEXTURE_USAGE_PRIMARY); 229 break; 230 231 /* Texture */ 232 case PIPE_FORMAT_A8R8G8B8_SRGB: 233 case PIPE_FORMAT_R8G8B8A8_SRGB: 234 case PIPE_FORMAT_DXT1_RGB: 235 case PIPE_FORMAT_DXT1_RGBA: 236 case PIPE_FORMAT_DXT3_RGBA: 237 case PIPE_FORMAT_DXT5_RGBA: 238 case PIPE_FORMAT_YCBCR: 239 case PIPE_FORMAT_L8_SRGB: 240 case PIPE_FORMAT_A8L8_SRGB: 241 case PIPE_FORMAT_A8L8_UNORM: 242 retval = usage & PIPE_TEXTURE_USAGE_SAMPLER; 243 break; 244 245 /* Colorbuffer or texture */ 246 case PIPE_FORMAT_R5G6B5_UNORM: 247 case PIPE_FORMAT_A1R5G5B5_UNORM: 248 case PIPE_FORMAT_A4R4G4B4_UNORM: 249 case PIPE_FORMAT_A8R8G8B8_UNORM: 250 case PIPE_FORMAT_X8R8G8B8_UNORM: 251 case PIPE_FORMAT_R8G8B8A8_UNORM: 252 case PIPE_FORMAT_R8G8B8X8_UNORM: 253 case PIPE_FORMAT_I8_UNORM: 254 retval = usage & 255 (PIPE_TEXTURE_USAGE_RENDER_TARGET | 256 PIPE_TEXTURE_USAGE_DISPLAY_TARGET | 257 PIPE_TEXTURE_USAGE_PRIMARY | 258 PIPE_TEXTURE_USAGE_SAMPLER); 259 break; 260 261 /* Z buffer or texture */ 262 case PIPE_FORMAT_Z16_UNORM: 263 retval = usage & 264 (PIPE_TEXTURE_USAGE_DEPTH_STENCIL | 265 PIPE_TEXTURE_USAGE_SAMPLER); 266 break; 267 268 /* 24bit Z buffer can only be used as a texture on R500. */ 269 case PIPE_FORMAT_Z24X8_UNORM: 270 /* Z buffer with stencil or texture */ 271 case PIPE_FORMAT_Z24S8_UNORM: 272 retval = usage & 273 (PIPE_TEXTURE_USAGE_DEPTH_STENCIL | 274 (is_r500 ? PIPE_TEXTURE_USAGE_SAMPLER : 0)); 275 break; 276 277 /* Definitely unsupported formats. */ 278 /* Non-usable Z buffer/stencil formats. */ 279 case PIPE_FORMAT_Z32_UNORM: 280 case PIPE_FORMAT_S8Z24_UNORM: 281 case PIPE_FORMAT_X8Z24_UNORM: 282 SCREEN_DBG(r300_screen(screen), DBG_TEX, 283 "r300: Note: Got unsupported format: %s in %s\n", 284 util_format_name(format), __FUNCTION__); 285 return FALSE; 286 287 /* XXX Add all remaining gallium-supported formats, 288 * see util/u_format.csv. */ 289 290 default: 291 /* Unknown format... */ 292 debug_printf("r300: Warning: Got unknown format: %s in %s\n", 293 util_format_name(format), __FUNCTION__); 294 break; 295 } 296 297 /* If usage was a mask that contained multiple bits, and not all of them 298 * are supported, this will catch that and return FALSE. 299 * e.g. usage = 2 | 4; retval = 4; (retval >= usage) == FALSE 300 * 301 * This also returns FALSE for any unknown formats. 302 */ 303 return (retval >= usage); 304} 305 306static struct pipe_transfer* 307r300_get_tex_transfer(struct pipe_screen *screen, 308 struct pipe_texture *texture, 309 unsigned face, unsigned level, unsigned zslice, 310 enum pipe_transfer_usage usage, unsigned x, unsigned y, 311 unsigned w, unsigned h) 312{ 313 struct r300_texture *tex = (struct r300_texture *)texture; 314 struct r300_transfer *trans; 315 struct r300_screen *rscreen = r300_screen(screen); 316 unsigned offset; 317 318 offset = r300_texture_get_offset(tex, level, zslice, face); /* in bytes */ 319 320 trans = CALLOC_STRUCT(r300_transfer); 321 if (trans) { 322 pipe_texture_reference(&trans->transfer.texture, texture); 323 trans->transfer.x = x; 324 trans->transfer.y = y; 325 trans->transfer.width = w; 326 trans->transfer.height = h; 327 trans->transfer.stride = r300_texture_get_stride(rscreen, tex, level); 328 trans->transfer.usage = usage; 329 trans->transfer.zslice = zslice; 330 trans->transfer.face = face; 331 332 trans->offset = offset; 333 } 334 return &trans->transfer; 335} 336 337static void 338r300_tex_transfer_destroy(struct pipe_transfer *trans) 339{ 340 pipe_texture_reference(&trans->texture, NULL); 341 FREE(trans); 342} 343 344static void* r300_transfer_map(struct pipe_screen* screen, 345 struct pipe_transfer* transfer) 346{ 347 struct r300_texture* tex = (struct r300_texture*)transfer->texture; 348 char* map; 349 enum pipe_format format = tex->tex.format; 350 351 map = pipe_buffer_map(screen, tex->buffer, 352 pipe_transfer_buffer_flags(transfer)); 353 354 if (!map) { 355 return NULL; 356 } 357 358 return map + r300_transfer(transfer)->offset + 359 transfer->y / util_format_get_blockheight(format) * transfer->stride + 360 transfer->x / util_format_get_blockwidth(format) * util_format_get_blocksize(format); 361} 362 363static void r300_transfer_unmap(struct pipe_screen* screen, 364 struct pipe_transfer* transfer) 365{ 366 struct r300_texture* tex = (struct r300_texture*)transfer->texture; 367 pipe_buffer_unmap(screen, tex->buffer); 368} 369 370static void r300_destroy_screen(struct pipe_screen* pscreen) 371{ 372 struct r300_screen* r300screen = r300_screen(pscreen); 373 374 FREE(r300screen->caps); 375 FREE(r300screen); 376} 377 378struct pipe_screen* r300_create_screen(struct radeon_winsys* radeon_winsys) 379{ 380 struct r300_screen* r300screen = CALLOC_STRUCT(r300_screen); 381 struct r300_capabilities* caps = CALLOC_STRUCT(r300_capabilities); 382 383 if (!r300screen || !caps) { 384 FREE(r300screen); 385 FREE(caps); 386 return NULL; 387 } 388 389 caps->pci_id = radeon_winsys->pci_id; 390 caps->num_frag_pipes = radeon_winsys->gb_pipes; 391 caps->num_z_pipes = radeon_winsys->z_pipes; 392 393 r300_init_debug(r300screen); 394 r300_parse_chipset(caps); 395 396 r300screen->caps = caps; 397 r300screen->radeon_winsys = radeon_winsys; 398 r300screen->screen.winsys = (struct pipe_winsys*)radeon_winsys; 399 r300screen->screen.destroy = r300_destroy_screen; 400 r300screen->screen.get_name = r300_get_name; 401 r300screen->screen.get_vendor = r300_get_vendor; 402 r300screen->screen.get_param = r300_get_param; 403 r300screen->screen.get_paramf = r300_get_paramf; 404 r300screen->screen.is_format_supported = r300_is_format_supported; 405 r300screen->screen.context_create = r300_create_context; 406 r300screen->screen.get_tex_transfer = r300_get_tex_transfer; 407 r300screen->screen.tex_transfer_destroy = r300_tex_transfer_destroy; 408 r300screen->screen.transfer_map = r300_transfer_map; 409 r300screen->screen.transfer_unmap = r300_transfer_unmap; 410 411 r300_init_screen_texture_functions(&r300screen->screen); 412 u_simple_screen_init(&r300screen->screen); 413 414 return &r300screen->screen; 415} 416