r300_screen.c revision b6ac2403aca240c72c8622ddbc3a4e123d5aa37f
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 "pipe/p_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 34/* Return the identifier behind whom the brave coders responsible for this 35 * amalgamation of code, sweat, and duct tape, routinely obscure their names. 36 * 37 * ...I should have just put "Corbin Simpson", but I'm not that cool. 38 * 39 * (Or egotistical. Yet.) */ 40static const char* r300_get_vendor(struct pipe_screen* pscreen) 41{ 42 return "X.Org R300 Project"; 43} 44 45static const char* chip_families[] = { 46 "R300", 47 "R350", 48 "R360", 49 "RV350", 50 "RV370", 51 "RV380", 52 "R420", 53 "R423", 54 "R430", 55 "R480", 56 "R481", 57 "RV410", 58 "RS400", 59 "RC410", 60 "RS480", 61 "RS482", 62 "RS600", 63 "RS690", 64 "RS740", 65 "RV515", 66 "R520", 67 "RV530", 68 "R580", 69 "RV560", 70 "RV570" 71}; 72 73static const char* r300_get_name(struct pipe_screen* pscreen) 74{ 75 struct r300_screen* r300screen = r300_screen(pscreen); 76 77 return chip_families[r300screen->caps->family]; 78} 79 80static int r300_get_param(struct pipe_screen* pscreen, int param) 81{ 82 struct r300_screen* r300screen = r300_screen(pscreen); 83 84 switch (param) { 85 case PIPE_CAP_MAX_TEXTURE_IMAGE_UNITS: 86 case PIPE_CAP_MAX_COMBINED_SAMPLERS: 87 /* XXX I'm told this goes up to 16 */ 88 return 8; 89 case PIPE_CAP_NPOT_TEXTURES: 90 /* XXX enable now to get GL2.1 API, 91 * figure out later how to emulate this */ 92 return 1; 93 case PIPE_CAP_TWO_SIDED_STENCIL: 94 if (r300screen->caps->is_r500) { 95 return 1; 96 } else { 97 return 0; 98 } 99 case PIPE_CAP_GLSL: 100 /* I'll be frank. This is a lie. 101 * 102 * We don't truly support GLSL on any of this driver's chipsets. 103 * To be fair, no chipset supports the full GLSL specification 104 * to the best of our knowledge, but some of the less esoteric 105 * features are still missing here. 106 * 107 * Rather than cripple ourselves intentionally, I'm going to set 108 * this flag, and as Gallium's interface continues to change, I 109 * hope that this single monolithic GLSL enable can slowly get 110 * split down into many different pieces and the state tracker 111 * will handle fallbacks transparently, like it should. 112 * 113 * ~ C. 114 */ 115 return 1; 116 case PIPE_CAP_DUAL_SOURCE_BLEND: 117 return 0; 118 case PIPE_CAP_ANISOTROPIC_FILTER: 119 return 1; 120 case PIPE_CAP_POINT_SPRITE: 121 return 1; 122 case PIPE_CAP_MAX_RENDER_TARGETS: 123 return 4; 124 case PIPE_CAP_OCCLUSION_QUERY: 125 return 1; 126 case PIPE_CAP_TEXTURE_SHADOW_MAP: 127 return 1; 128 case PIPE_CAP_MAX_TEXTURE_2D_LEVELS: 129 case PIPE_CAP_MAX_TEXTURE_3D_LEVELS: 130 case PIPE_CAP_MAX_TEXTURE_CUBE_LEVELS: 131 if (r300screen->caps->is_r500) { 132 /* 13 == 4096 */ 133 return 13; 134 } else { 135 /* 12 == 2048 */ 136 return 12; 137 } 138 case PIPE_CAP_TEXTURE_MIRROR_CLAMP: 139 return 1; 140 case PIPE_CAP_TEXTURE_MIRROR_REPEAT: 141 return 1; 142 case PIPE_CAP_MAX_VERTEX_TEXTURE_UNITS: 143 return 0; 144 case PIPE_CAP_TGSI_CONT_SUPPORTED: 145 return 0; 146 case PIPE_CAP_BLEND_EQUATION_SEPARATE: 147 return 1; 148 case PIPE_CAP_SM3: 149 if (r300screen->caps->is_r500) { 150 return 1; 151 } else { 152 return 0; 153 } 154 case PIPE_CAP_INDEP_BLEND_ENABLE: 155 if (r300screen->caps->is_r500) { 156 return 1; 157 } else { 158 return 0; 159 } 160 case PIPE_CAP_INDEP_BLEND_FUNC: 161 return 0; 162 case PIPE_CAP_TGSI_FS_COORD_ORIGIN_UPPER_LEFT: 163 case PIPE_CAP_TGSI_FS_COORD_PIXEL_CENTER_HALF_INTEGER: 164 return 1; 165 case PIPE_CAP_TGSI_FS_COORD_ORIGIN_LOWER_LEFT: 166 case PIPE_CAP_TGSI_FS_COORD_PIXEL_CENTER_INTEGER: 167 return 0; 168 default: 169 debug_printf("r300: Implementation error: Bad param %d\n", 170 param); 171 return 0; 172 } 173} 174 175static float r300_get_paramf(struct pipe_screen* pscreen, int param) 176{ 177 struct r300_screen* r300screen = r300_screen(pscreen); 178 179 switch (param) { 180 case PIPE_CAP_MAX_LINE_WIDTH: 181 case PIPE_CAP_MAX_LINE_WIDTH_AA: 182 case PIPE_CAP_MAX_POINT_WIDTH: 183 case PIPE_CAP_MAX_POINT_WIDTH_AA: 184 /* The maximum dimensions of the colorbuffer are our practical 185 * rendering limits. 2048 pixels should be enough for anybody. */ 186 if (r300screen->caps->is_r500) { 187 return 4096.0f; 188 } else { 189 return 2048.0f; 190 } 191 case PIPE_CAP_MAX_TEXTURE_ANISOTROPY: 192 return 16.0f; 193 case PIPE_CAP_MAX_TEXTURE_LOD_BIAS: 194 return 16.0f; 195 default: 196 debug_printf("r300: Implementation error: Bad paramf %d\n", 197 param); 198 return 0.0f; 199 } 200} 201 202static boolean r300_is_format_supported(struct pipe_screen* screen, 203 enum pipe_format format, 204 enum pipe_texture_target target, 205 unsigned usage, 206 unsigned geom_flags) 207{ 208 uint32_t retval = 0; 209 boolean is_r500 = r300_screen(screen)->caps->is_r500; 210 211 if (target >= PIPE_MAX_TEXTURE_TYPES) { 212 debug_printf("r300: Implementation error: Received bogus texture " 213 "target %d in %s\n", target, __FUNCTION__); 214 return FALSE; 215 } 216 217 switch (format) { 218 /* Supported formats. */ 219 /* Colorbuffer */ 220 case PIPE_FORMAT_A4R4G4B4_UNORM: 221 case PIPE_FORMAT_R5G6B5_UNORM: 222 case PIPE_FORMAT_A1R5G5B5_UNORM: 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_A8L8_UNORM: 240 retval = usage & PIPE_TEXTURE_USAGE_SAMPLER; 241 break; 242 243 /* Colorbuffer or texture */ 244 case PIPE_FORMAT_A8R8G8B8_UNORM: 245 case PIPE_FORMAT_X8R8G8B8_UNORM: 246 case PIPE_FORMAT_R8G8B8A8_UNORM: 247 case PIPE_FORMAT_R8G8B8X8_UNORM: 248 case PIPE_FORMAT_I8_UNORM: 249 retval = usage & 250 (PIPE_TEXTURE_USAGE_RENDER_TARGET | 251 PIPE_TEXTURE_USAGE_DISPLAY_TARGET | 252 PIPE_TEXTURE_USAGE_PRIMARY | 253 PIPE_TEXTURE_USAGE_SAMPLER); 254 break; 255 256 /* Z buffer or texture */ 257 case PIPE_FORMAT_Z16_UNORM: 258 retval = usage & 259 (PIPE_TEXTURE_USAGE_DEPTH_STENCIL | 260 PIPE_TEXTURE_USAGE_SAMPLER); 261 break; 262 263 /* 24bit Z buffer can only be used as a texture on R500. */ 264 case PIPE_FORMAT_Z24X8_UNORM: 265 /* Z buffer with stencil or texture */ 266 case PIPE_FORMAT_Z24S8_UNORM: 267 retval = usage & 268 (PIPE_TEXTURE_USAGE_DEPTH_STENCIL | 269 (is_r500 ? PIPE_TEXTURE_USAGE_SAMPLER : 0)); 270 break; 271 272 /* Definitely unsupported formats. */ 273 /* Non-usable Z buffer/stencil formats. */ 274 case PIPE_FORMAT_Z32_UNORM: 275 case PIPE_FORMAT_S8Z24_UNORM: 276 case PIPE_FORMAT_X8Z24_UNORM: 277 SCREEN_DBG(r300_screen(screen), DBG_TEX, 278 "r300: Note: Got unsupported format: %s in %s\n", 279 pf_name(format), __FUNCTION__); 280 return FALSE; 281 282 /* XXX Add all remaining gallium-supported formats, 283 * see util/u_format.csv. */ 284 285 default: 286 /* Unknown format... */ 287 debug_printf("r300: Warning: Got unknown format: %s in %s\n", 288 pf_name(format), __FUNCTION__); 289 break; 290 } 291 292 /* If usage was a mask that contained multiple bits, and not all of them 293 * are supported, this will catch that and return FALSE. 294 * e.g. usage = 2 | 4; retval = 4; (retval >= usage) == FALSE 295 * 296 * This also returns FALSE for any unknown formats. 297 */ 298 return (retval >= usage); 299} 300 301static struct pipe_transfer* 302r300_get_tex_transfer(struct pipe_screen *screen, 303 struct pipe_texture *texture, 304 unsigned face, unsigned level, unsigned zslice, 305 enum pipe_transfer_usage usage, unsigned x, unsigned y, 306 unsigned w, unsigned h) 307{ 308 struct r300_texture *tex = (struct r300_texture *)texture; 309 struct r300_transfer *trans; 310 struct r300_screen *rscreen = r300_screen(screen); 311 unsigned offset; 312 313 offset = r300_texture_get_offset(tex, level, zslice, face); /* in bytes */ 314 315 trans = CALLOC_STRUCT(r300_transfer); 316 if (trans) { 317 pipe_texture_reference(&trans->transfer.texture, texture); 318 trans->transfer.x = x; 319 trans->transfer.y = y; 320 trans->transfer.width = w; 321 trans->transfer.height = h; 322 trans->transfer.stride = r300_texture_get_stride(rscreen, tex, level); 323 trans->transfer.usage = usage; 324 trans->transfer.zslice = zslice; 325 trans->transfer.face = face; 326 327 trans->offset = offset; 328 } 329 return &trans->transfer; 330} 331 332static void 333r300_tex_transfer_destroy(struct pipe_transfer *trans) 334{ 335 pipe_texture_reference(&trans->texture, NULL); 336 FREE(trans); 337} 338 339static void* r300_transfer_map(struct pipe_screen* screen, 340 struct pipe_transfer* transfer) 341{ 342 struct r300_texture* tex = (struct r300_texture*)transfer->texture; 343 char* map; 344 enum pipe_format format = tex->tex.format; 345 346 map = pipe_buffer_map(screen, tex->buffer, 347 pipe_transfer_buffer_flags(transfer)); 348 349 if (!map) { 350 return NULL; 351 } 352 353 return map + r300_transfer(transfer)->offset + 354 transfer->y / util_format_get_blockheight(format) * transfer->stride + 355 transfer->x / util_format_get_blockwidth(format) * util_format_get_blocksize(format); 356} 357 358static void r300_transfer_unmap(struct pipe_screen* screen, 359 struct pipe_transfer* transfer) 360{ 361 struct r300_texture* tex = (struct r300_texture*)transfer->texture; 362 pipe_buffer_unmap(screen, tex->buffer); 363} 364 365static void r300_destroy_screen(struct pipe_screen* pscreen) 366{ 367 struct r300_screen* r300screen = r300_screen(pscreen); 368 369 FREE(r300screen->caps); 370 FREE(r300screen); 371} 372 373struct pipe_screen* r300_create_screen(struct radeon_winsys* radeon_winsys) 374{ 375 struct r300_screen* r300screen = CALLOC_STRUCT(r300_screen); 376 struct r300_capabilities* caps = CALLOC_STRUCT(r300_capabilities); 377 378 if (!r300screen || !caps) 379 return NULL; 380 381 caps->pci_id = radeon_winsys->pci_id; 382 caps->num_frag_pipes = radeon_winsys->gb_pipes; 383 caps->num_z_pipes = radeon_winsys->z_pipes; 384 385 r300_init_debug(r300screen); 386 r300_parse_chipset(caps); 387 388 r300screen->caps = caps; 389 r300screen->screen.winsys = (struct pipe_winsys*)radeon_winsys; 390 r300screen->screen.destroy = r300_destroy_screen; 391 r300screen->screen.get_name = r300_get_name; 392 r300screen->screen.get_vendor = r300_get_vendor; 393 r300screen->screen.get_param = r300_get_param; 394 r300screen->screen.get_paramf = r300_get_paramf; 395 r300screen->screen.is_format_supported = r300_is_format_supported; 396 r300screen->screen.get_tex_transfer = r300_get_tex_transfer; 397 r300screen->screen.tex_transfer_destroy = r300_tex_transfer_destroy; 398 r300screen->screen.transfer_map = r300_transfer_map; 399 r300screen->screen.transfer_unmap = r300_transfer_unmap; 400 401 r300_init_screen_texture_functions(&r300screen->screen); 402 u_simple_screen_init(&r300screen->screen); 403 404 return &r300screen->screen; 405} 406