r300_screen.c revision 15e283669aa8832347b4733f9556efdb5692640e
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_ANISOTROPIC_FILTER: 117 return 1; 118 case PIPE_CAP_POINT_SPRITE: 119 return 1; 120 case PIPE_CAP_MAX_RENDER_TARGETS: 121 return 4; 122 case PIPE_CAP_OCCLUSION_QUERY: 123 return 1; 124 case PIPE_CAP_TEXTURE_SHADOW_MAP: 125 return 1; 126 case PIPE_CAP_MAX_TEXTURE_2D_LEVELS: 127 case PIPE_CAP_MAX_TEXTURE_3D_LEVELS: 128 case PIPE_CAP_MAX_TEXTURE_CUBE_LEVELS: 129 if (r300screen->caps->is_r500) { 130 /* 13 == 4096 */ 131 return 13; 132 } else { 133 /* 12 == 2048 */ 134 return 12; 135 } 136 case PIPE_CAP_TEXTURE_MIRROR_CLAMP: 137 return 1; 138 case PIPE_CAP_TEXTURE_MIRROR_REPEAT: 139 return 1; 140 case PIPE_CAP_MAX_VERTEX_TEXTURE_UNITS: 141 return 0; 142 case PIPE_CAP_TGSI_CONT_SUPPORTED: 143 return 0; 144 case PIPE_CAP_BLEND_EQUATION_SEPARATE: 145 return 1; 146 case PIPE_CAP_SM3: 147 if (r300screen->caps->is_r500) { 148 return 1; 149 } else { 150 return 0; 151 } 152 default: 153 debug_printf("r300: Implementation error: Bad param %d\n", 154 param); 155 return 0; 156 } 157} 158 159static float r300_get_paramf(struct pipe_screen* pscreen, int param) 160{ 161 struct r300_screen* r300screen = r300_screen(pscreen); 162 163 switch (param) { 164 case PIPE_CAP_MAX_LINE_WIDTH: 165 case PIPE_CAP_MAX_LINE_WIDTH_AA: 166 case PIPE_CAP_MAX_POINT_WIDTH: 167 case PIPE_CAP_MAX_POINT_WIDTH_AA: 168 /* The maximum dimensions of the colorbuffer are our practical 169 * rendering limits. 2048 pixels should be enough for anybody. */ 170 if (r300screen->caps->is_r500) { 171 return 4096.0f; 172 } else { 173 return 2048.0f; 174 } 175 case PIPE_CAP_MAX_TEXTURE_ANISOTROPY: 176 return 16.0f; 177 case PIPE_CAP_MAX_TEXTURE_LOD_BIAS: 178 return 16.0f; 179 default: 180 debug_printf("r300: Implementation error: Bad paramf %d\n", 181 param); 182 return 0.0f; 183 } 184} 185 186static boolean r300_is_format_supported(struct pipe_screen* screen, 187 enum pipe_format format, 188 enum pipe_texture_target target, 189 unsigned usage, 190 unsigned geom_flags) 191{ 192 uint32_t retval = 0; 193 boolean is_r500 = r300_screen(screen)->caps->is_r500; 194 195 if (target >= PIPE_MAX_TEXTURE_TYPES) { 196 debug_printf("r300: Implementation error: Received bogus texture " 197 "target %d in %s\n", target, __FUNCTION__); 198 return FALSE; 199 } 200 201 switch (format) { 202 /* Supported formats. */ 203 /* Colorbuffer */ 204 case PIPE_FORMAT_A4R4G4B4_UNORM: 205 case PIPE_FORMAT_R5G6B5_UNORM: 206 case PIPE_FORMAT_A1R5G5B5_UNORM: 207 retval = usage & 208 (PIPE_TEXTURE_USAGE_RENDER_TARGET | 209 PIPE_TEXTURE_USAGE_DISPLAY_TARGET | 210 PIPE_TEXTURE_USAGE_PRIMARY); 211 break; 212 213 /* Texture */ 214 case PIPE_FORMAT_A8R8G8B8_SRGB: 215 case PIPE_FORMAT_R8G8B8A8_SRGB: 216 case PIPE_FORMAT_DXT1_RGB: 217 case PIPE_FORMAT_DXT1_RGBA: 218 case PIPE_FORMAT_DXT3_RGBA: 219 case PIPE_FORMAT_DXT5_RGBA: 220 case PIPE_FORMAT_YCBCR: 221 case PIPE_FORMAT_L8_UNORM: 222 case PIPE_FORMAT_A8_UNORM: 223 case PIPE_FORMAT_A8L8_UNORM: 224 retval = usage & PIPE_TEXTURE_USAGE_SAMPLER; 225 break; 226 227 /* Colorbuffer or texture */ 228 case PIPE_FORMAT_A8R8G8B8_UNORM: 229 case PIPE_FORMAT_X8R8G8B8_UNORM: 230 case PIPE_FORMAT_R8G8B8A8_UNORM: 231 case PIPE_FORMAT_R8G8B8X8_UNORM: 232 case PIPE_FORMAT_I8_UNORM: 233 retval = usage & 234 (PIPE_TEXTURE_USAGE_RENDER_TARGET | 235 PIPE_TEXTURE_USAGE_DISPLAY_TARGET | 236 PIPE_TEXTURE_USAGE_PRIMARY | 237 PIPE_TEXTURE_USAGE_SAMPLER); 238 break; 239 240 /* Z buffer or texture */ 241 case PIPE_FORMAT_Z16_UNORM: 242 retval = usage & 243 (PIPE_TEXTURE_USAGE_DEPTH_STENCIL | 244 PIPE_TEXTURE_USAGE_SAMPLER); 245 break; 246 247 /* 24bit Z buffer can only be used as a texture on R500. */ 248 case PIPE_FORMAT_Z24X8_UNORM: 249 /* Z buffer with stencil or texture */ 250 case PIPE_FORMAT_Z24S8_UNORM: 251 retval = usage & 252 (PIPE_TEXTURE_USAGE_DEPTH_STENCIL | 253 (is_r500 ? PIPE_TEXTURE_USAGE_SAMPLER : 0)); 254 break; 255 256 /* Definitely unsupported formats. */ 257 /* Non-usable Z buffer/stencil formats. */ 258 case PIPE_FORMAT_Z32_UNORM: 259 case PIPE_FORMAT_S8Z24_UNORM: 260 case PIPE_FORMAT_X8Z24_UNORM: 261 SCREEN_DBG(r300_screen(screen), DBG_TEX, 262 "r300: Note: Got unsupported format: %s in %s\n", 263 pf_name(format), __FUNCTION__); 264 return FALSE; 265 266 /* XXX Add all remaining gallium-supported formats, 267 * see util/u_format.csv. */ 268 269 default: 270 /* Unknown format... */ 271 debug_printf("r300: Warning: Got unknown format: %s in %s\n", 272 pf_name(format), __FUNCTION__); 273 break; 274 } 275 276 /* If usage was a mask that contained multiple bits, and not all of them 277 * are supported, this will catch that and return FALSE. 278 * e.g. usage = 2 | 4; retval = 4; (retval >= usage) == FALSE 279 * 280 * This also returns FALSE for any unknown formats. 281 */ 282 return (retval >= usage); 283} 284 285static struct pipe_transfer* 286r300_get_tex_transfer(struct pipe_screen *screen, 287 struct pipe_texture *texture, 288 unsigned face, unsigned level, unsigned zslice, 289 enum pipe_transfer_usage usage, unsigned x, unsigned y, 290 unsigned w, unsigned h) 291{ 292 struct r300_texture *tex = (struct r300_texture *)texture; 293 struct r300_transfer *trans; 294 struct r300_screen *rscreen = r300_screen(screen); 295 unsigned offset; 296 297 offset = r300_texture_get_offset(tex, level, zslice, face); /* in bytes */ 298 299 trans = CALLOC_STRUCT(r300_transfer); 300 if (trans) { 301 pipe_texture_reference(&trans->transfer.texture, texture); 302 trans->transfer.x = x; 303 trans->transfer.y = y; 304 trans->transfer.width = w; 305 trans->transfer.height = h; 306 trans->transfer.stride = r300_texture_get_stride(rscreen, tex, level); 307 trans->transfer.usage = usage; 308 trans->transfer.zslice = zslice; 309 trans->transfer.face = face; 310 311 trans->offset = offset; 312 } 313 return &trans->transfer; 314} 315 316static void 317r300_tex_transfer_destroy(struct pipe_transfer *trans) 318{ 319 pipe_texture_reference(&trans->texture, NULL); 320 FREE(trans); 321} 322 323static void* r300_transfer_map(struct pipe_screen* screen, 324 struct pipe_transfer* transfer) 325{ 326 struct r300_texture* tex = (struct r300_texture*)transfer->texture; 327 char* map; 328 enum pipe_format format = tex->tex.format; 329 330 map = pipe_buffer_map(screen, tex->buffer, 331 pipe_transfer_buffer_flags(transfer)); 332 333 if (!map) { 334 return NULL; 335 } 336 337 return map + r300_transfer(transfer)->offset + 338 transfer->y / util_format_get_blockheight(format) * transfer->stride + 339 transfer->x / util_format_get_blockwidth(format) * util_format_get_blocksize(format); 340} 341 342static void r300_transfer_unmap(struct pipe_screen* screen, 343 struct pipe_transfer* transfer) 344{ 345 struct r300_texture* tex = (struct r300_texture*)transfer->texture; 346 pipe_buffer_unmap(screen, tex->buffer); 347} 348 349static void r300_destroy_screen(struct pipe_screen* pscreen) 350{ 351 struct r300_screen* r300screen = r300_screen(pscreen); 352 353 FREE(r300screen->caps); 354 FREE(r300screen); 355} 356 357struct pipe_screen* r300_create_screen(struct radeon_winsys* radeon_winsys) 358{ 359 struct r300_screen* r300screen = CALLOC_STRUCT(r300_screen); 360 struct r300_capabilities* caps = CALLOC_STRUCT(r300_capabilities); 361 362 if (!r300screen || !caps) 363 return NULL; 364 365 caps->pci_id = radeon_winsys->pci_id; 366 caps->num_frag_pipes = radeon_winsys->gb_pipes; 367 caps->num_z_pipes = radeon_winsys->z_pipes; 368 369 r300_init_debug(r300screen); 370 r300_parse_chipset(caps); 371 372 r300screen->caps = caps; 373 r300screen->screen.winsys = (struct pipe_winsys*)radeon_winsys; 374 r300screen->screen.destroy = r300_destroy_screen; 375 r300screen->screen.get_name = r300_get_name; 376 r300screen->screen.get_vendor = r300_get_vendor; 377 r300screen->screen.get_param = r300_get_param; 378 r300screen->screen.get_paramf = r300_get_paramf; 379 r300screen->screen.is_format_supported = r300_is_format_supported; 380 r300screen->screen.get_tex_transfer = r300_get_tex_transfer; 381 r300screen->screen.tex_transfer_destroy = r300_tex_transfer_destroy; 382 r300screen->screen.transfer_map = r300_transfer_map; 383 r300screen->screen.transfer_unmap = r300_transfer_unmap; 384 385 r300_init_screen_texture_functions(&r300screen->screen); 386 u_simple_screen_init(&r300screen->screen); 387 388 return &r300screen->screen; 389} 390