r300_screen.c revision 71ac9551c49387813fcf3e6e88778081bf7306fe
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_INDEP_BLEND_ENABLE: 156 return 0; 157 case PIPE_CAP_INDEP_BLEND_FUNC: 158 return 0; 159 case PIPE_CAP_TGSI_FS_COORD_ORIGIN_UPPER_LEFT: 160 case PIPE_CAP_TGSI_FS_COORD_PIXEL_CENTER_HALF_INTEGER: 161 return 1; 162 case PIPE_CAP_TGSI_FS_COORD_ORIGIN_LOWER_LEFT: 163 case PIPE_CAP_TGSI_FS_COORD_PIXEL_CENTER_INTEGER: 164 return 0; 165 default: 166 debug_printf("r300: Implementation error: Bad param %d\n", 167 param); 168 return 0; 169 } 170} 171 172static float r300_get_paramf(struct pipe_screen* pscreen, int param) 173{ 174 struct r300_screen* r300screen = r300_screen(pscreen); 175 176 switch (param) { 177 case PIPE_CAP_MAX_LINE_WIDTH: 178 case PIPE_CAP_MAX_LINE_WIDTH_AA: 179 case PIPE_CAP_MAX_POINT_WIDTH: 180 case PIPE_CAP_MAX_POINT_WIDTH_AA: 181 /* The maximum dimensions of the colorbuffer are our practical 182 * rendering limits. 2048 pixels should be enough for anybody. */ 183 if (r300screen->caps->is_r500) { 184 return 4096.0f; 185 } else if (r300screen->caps->is_r400) { 186 return 4021.0f; 187 } else { 188 return 2560.0f; 189 } 190 case PIPE_CAP_MAX_TEXTURE_ANISOTROPY: 191 return 16.0f; 192 case PIPE_CAP_MAX_TEXTURE_LOD_BIAS: 193 return 16.0f; 194 default: 195 debug_printf("r300: Implementation error: Bad paramf %d\n", 196 param); 197 return 0.0f; 198 } 199} 200 201static boolean r300_is_format_supported(struct pipe_screen* screen, 202 enum pipe_format format, 203 enum pipe_texture_target target, 204 unsigned usage, 205 unsigned geom_flags) 206{ 207 uint32_t retval = 0; 208 boolean is_r500 = r300_screen(screen)->caps->is_r500; 209 210 if (target >= PIPE_MAX_TEXTURE_TYPES) { 211 debug_printf("r300: Implementation error: Received bogus texture " 212 "target %d in %s\n", target, __FUNCTION__); 213 return FALSE; 214 } 215 216 switch (format) { 217 /* Supported formats. */ 218 /* Colorbuffer */ 219 case PIPE_FORMAT_A8_UNORM: 220 case PIPE_FORMAT_L8_UNORM: 221 retval = usage & 222 (PIPE_TEXTURE_USAGE_RENDER_TARGET | 223 PIPE_TEXTURE_USAGE_DISPLAY_TARGET | 224 PIPE_TEXTURE_USAGE_PRIMARY); 225 break; 226 227 /* Texture */ 228 case PIPE_FORMAT_A8R8G8B8_SRGB: 229 case PIPE_FORMAT_R8G8B8A8_SRGB: 230 case PIPE_FORMAT_DXT1_RGB: 231 case PIPE_FORMAT_DXT1_RGBA: 232 case PIPE_FORMAT_DXT3_RGBA: 233 case PIPE_FORMAT_DXT5_RGBA: 234 case PIPE_FORMAT_YCBCR: 235 case PIPE_FORMAT_L8_SRGB: 236 case PIPE_FORMAT_A8L8_SRGB: 237 case PIPE_FORMAT_A8L8_UNORM: 238 retval = usage & PIPE_TEXTURE_USAGE_SAMPLER; 239 break; 240 241 /* Colorbuffer or texture */ 242 case PIPE_FORMAT_R5G6B5_UNORM: 243 case PIPE_FORMAT_A1R5G5B5_UNORM: 244 case PIPE_FORMAT_A4R4G4B4_UNORM: 245 case PIPE_FORMAT_A8R8G8B8_UNORM: 246 case PIPE_FORMAT_X8R8G8B8_UNORM: 247 case PIPE_FORMAT_R8G8B8A8_UNORM: 248 case PIPE_FORMAT_R8G8B8X8_UNORM: 249 case PIPE_FORMAT_I8_UNORM: 250 retval = usage & 251 (PIPE_TEXTURE_USAGE_RENDER_TARGET | 252 PIPE_TEXTURE_USAGE_DISPLAY_TARGET | 253 PIPE_TEXTURE_USAGE_PRIMARY | 254 PIPE_TEXTURE_USAGE_SAMPLER); 255 break; 256 257 /* Z buffer or texture */ 258 case PIPE_FORMAT_Z16_UNORM: 259 retval = usage & 260 (PIPE_TEXTURE_USAGE_DEPTH_STENCIL | 261 PIPE_TEXTURE_USAGE_SAMPLER); 262 break; 263 264 /* 24bit Z buffer can only be used as a texture on R500. */ 265 case PIPE_FORMAT_Z24X8_UNORM: 266 /* Z buffer with stencil or texture */ 267 case PIPE_FORMAT_Z24S8_UNORM: 268 retval = usage & 269 (PIPE_TEXTURE_USAGE_DEPTH_STENCIL | 270 (is_r500 ? PIPE_TEXTURE_USAGE_SAMPLER : 0)); 271 break; 272 273 /* Definitely unsupported formats. */ 274 /* Non-usable Z buffer/stencil formats. */ 275 case PIPE_FORMAT_Z32_UNORM: 276 case PIPE_FORMAT_S8Z24_UNORM: 277 case PIPE_FORMAT_X8Z24_UNORM: 278 SCREEN_DBG(r300_screen(screen), DBG_TEX, 279 "r300: Note: Got unsupported format: %s in %s\n", 280 util_format_name(format), __FUNCTION__); 281 return FALSE; 282 283 /* XXX Add all remaining gallium-supported formats, 284 * see util/u_format.csv. */ 285 286 default: 287 /* Unknown format... */ 288 debug_printf("r300: Warning: Got unknown format: %s in %s\n", 289 util_format_name(format), __FUNCTION__); 290 break; 291 } 292 293 /* If usage was a mask that contained multiple bits, and not all of them 294 * are supported, this will catch that and return FALSE. 295 * e.g. usage = 2 | 4; retval = 4; (retval >= usage) == FALSE 296 * 297 * This also returns FALSE for any unknown formats. 298 */ 299 return (retval >= usage); 300} 301 302static struct pipe_transfer* 303r300_get_tex_transfer(struct pipe_screen *screen, 304 struct pipe_texture *texture, 305 unsigned face, unsigned level, unsigned zslice, 306 enum pipe_transfer_usage usage, unsigned x, unsigned y, 307 unsigned w, unsigned h) 308{ 309 struct r300_texture *tex = (struct r300_texture *)texture; 310 struct r300_transfer *trans; 311 struct r300_screen *rscreen = r300_screen(screen); 312 unsigned offset; 313 314 offset = r300_texture_get_offset(tex, level, zslice, face); /* in bytes */ 315 316 trans = CALLOC_STRUCT(r300_transfer); 317 if (trans) { 318 pipe_texture_reference(&trans->transfer.texture, texture); 319 trans->transfer.x = x; 320 trans->transfer.y = y; 321 trans->transfer.width = w; 322 trans->transfer.height = h; 323 trans->transfer.stride = r300_texture_get_stride(rscreen, tex, level); 324 trans->transfer.usage = usage; 325 trans->transfer.zslice = zslice; 326 trans->transfer.face = face; 327 328 trans->offset = offset; 329 } 330 return &trans->transfer; 331} 332 333static void 334r300_tex_transfer_destroy(struct pipe_transfer *trans) 335{ 336 pipe_texture_reference(&trans->texture, NULL); 337 FREE(trans); 338} 339 340static void* r300_transfer_map(struct pipe_screen* screen, 341 struct pipe_transfer* transfer) 342{ 343 struct r300_texture* tex = (struct r300_texture*)transfer->texture; 344 char* map; 345 enum pipe_format format = tex->tex.format; 346 347 map = pipe_buffer_map(screen, tex->buffer, 348 pipe_transfer_buffer_flags(transfer)); 349 350 if (!map) { 351 return NULL; 352 } 353 354 return map + r300_transfer(transfer)->offset + 355 transfer->y / util_format_get_blockheight(format) * transfer->stride + 356 transfer->x / util_format_get_blockwidth(format) * util_format_get_blocksize(format); 357} 358 359static void r300_transfer_unmap(struct pipe_screen* screen, 360 struct pipe_transfer* transfer) 361{ 362 struct r300_texture* tex = (struct r300_texture*)transfer->texture; 363 pipe_buffer_unmap(screen, tex->buffer); 364} 365 366static void r300_destroy_screen(struct pipe_screen* pscreen) 367{ 368 struct r300_screen* r300screen = r300_screen(pscreen); 369 370 FREE(r300screen->caps); 371 FREE(r300screen); 372} 373 374struct pipe_screen* r300_create_screen(struct radeon_winsys* radeon_winsys) 375{ 376 struct r300_screen* r300screen = CALLOC_STRUCT(r300_screen); 377 struct r300_capabilities* caps = CALLOC_STRUCT(r300_capabilities); 378 379 if (!r300screen || !caps) { 380 FREE(r300screen); 381 FREE(caps); 382 return NULL; 383 } 384 385 caps->pci_id = radeon_winsys->pci_id; 386 caps->num_frag_pipes = radeon_winsys->gb_pipes; 387 caps->num_z_pipes = radeon_winsys->z_pipes; 388 389 r300_init_debug(r300screen); 390 r300_parse_chipset(caps); 391 392 r300screen->caps = caps; 393 r300screen->radeon_winsys = radeon_winsys; 394 r300screen->screen.winsys = (struct pipe_winsys*)radeon_winsys; 395 r300screen->screen.destroy = r300_destroy_screen; 396 r300screen->screen.get_name = r300_get_name; 397 r300screen->screen.get_vendor = r300_get_vendor; 398 r300screen->screen.get_param = r300_get_param; 399 r300screen->screen.get_paramf = r300_get_paramf; 400 r300screen->screen.is_format_supported = r300_is_format_supported; 401 r300screen->screen.context_create = r300_create_context; 402 r300screen->screen.get_tex_transfer = r300_get_tex_transfer; 403 r300screen->screen.tex_transfer_destroy = r300_tex_transfer_destroy; 404 r300screen->screen.transfer_map = r300_transfer_map; 405 r300screen->screen.transfer_unmap = r300_transfer_unmap; 406 407 r300_init_screen_texture_functions(&r300screen->screen); 408 u_simple_screen_init(&r300screen->screen); 409 410 return &r300screen->screen; 411} 412