src/gallium/drivers/r300/r300_screen.c

   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 #include "os/os_time.h"
  28 #include "vl/vl_decoder.h"
  29 #include "vl/vl_video_buffer.h"
  30
  31 #include "r300_context.h"
  32 #include "r300_texture.h"
  33 #include "r300_screen_buffer.h"
  34 #include "r300_state_inlines.h"
  35 #include "r300_public.h"
  36
  37 #include "draw/draw_context.h"
  38
  39 /* Return the identifier behind whom the brave coders responsible for this
  40  * amalgamation of code, sweat, and duct tape, routinely obscure their names.
  41  *
  42  * ...I should have just put "Corbin Simpson", but I'm not that cool.
  43  *
  44  * (Or egotistical. Yet.) */
  45 static const char* r300_get_vendor(struct pipe_screen* pscreen)
  46 {
  47     return "X.Org R300 Project";
  48 }
  49
  50 static const char* r300_get_device_vendor(struct pipe_screen* pscreen)
  51 {
  52     return "ATI";
  53 }
  54
  55 static const char* chip_families[] = {
  56     "unknown",
  57     "ATI R300",
  58     "ATI R350",
  59     "ATI RV350",
  60     "ATI RV370",
  61     "ATI RV380",
  62     "ATI RS400",
  63     "ATI RC410",
  64     "ATI RS480",
  65     "ATI R420",
  66     "ATI R423",
  67     "ATI R430",
  68     "ATI R480",
  69     "ATI R481",
  70     "ATI RV410",
  71     "ATI RS600",
  72     "ATI RS690",
  73     "ATI RS740",
  74     "ATI RV515",
  75     "ATI R520",
  76     "ATI RV530",
  77     "ATI R580",
  78     "ATI RV560",
  79     "ATI RV570"
  80 };
  81
  82 static const char* r300_get_name(struct pipe_screen* pscreen)
  83 {
  84     struct r300_screen* r300screen = r300_screen(pscreen);
  85
  86     return chip_families[r300screen->caps.family];
  87 }
  88
  89 static int r300_get_param(struct pipe_screen* pscreen, enum pipe_cap param)
  90 {
  91     struct r300_screen* r300screen = r300_screen(pscreen);
  92     boolean is_r500 = r300screen->caps.is_r500;
  93
  94     switch (param) {
  95         /* Supported features (boolean caps). */
  96         case PIPE_CAP_NPOT_TEXTURES:
  97         case PIPE_CAP_MIXED_FRAMEBUFFER_SIZES:
  98         case PIPE_CAP_MIXED_COLOR_DEPTH_BITS:
  99         case PIPE_CAP_TWO_SIDED_STENCIL:
 100         case PIPE_CAP_ANISOTROPIC_FILTER:
 101         case PIPE_CAP_POINT_SPRITE:
 102         case PIPE_CAP_OCCLUSION_QUERY:
 103         case PIPE_CAP_TEXTURE_SHADOW_MAP:
 104         case PIPE_CAP_TEXTURE_MIRROR_CLAMP:
 105         case PIPE_CAP_BLEND_EQUATION_SEPARATE:
 106         case PIPE_CAP_VERTEX_ELEMENT_INSTANCE_DIVISOR:
 107         case PIPE_CAP_TGSI_FS_COORD_ORIGIN_UPPER_LEFT:
 108         case PIPE_CAP_TGSI_FS_COORD_PIXEL_CENTER_HALF_INTEGER:
 109         case PIPE_CAP_CONDITIONAL_RENDER:
 110         case PIPE_CAP_TEXTURE_BARRIER:
 111         case PIPE_CAP_TGSI_CAN_COMPACT_CONSTANTS:
 112         case PIPE_CAP_USER_CONSTANT_BUFFERS:
 113         case PIPE_CAP_PREFER_BLIT_BASED_TEXTURE_TRANSFER:
 114         case PIPE_CAP_BUFFER_MAP_PERSISTENT_COHERENT:
 115         case PIPE_CAP_CLIP_HALFZ:
 116         case PIPE_CAP_ALLOW_MAPPED_BUFFERS_DURING_EXECUTION:
 117             return 1;
 118
 119         case PIPE_CAP_MIN_MAP_BUFFER_ALIGNMENT:
 120             return R300_BUFFER_ALIGNMENT;
 121
 122         case PIPE_CAP_CONSTANT_BUFFER_OFFSET_ALIGNMENT:
 123             return 16;
 124
 125         case PIPE_CAP_GLSL_FEATURE_LEVEL:
 126             return 120;
 127
 128         /* r300 cannot do swizzling of compressed textures. Supported otherwise. */
 129         case PIPE_CAP_TEXTURE_SWIZZLE:
 130             return util_format_s3tc_enabled ? r300screen->caps.dxtc_swizzle : 1;
 131
 132         /* We don't support color clamping on r500, so that we can use color
 133          * intepolators for generic varyings. */
 134         case PIPE_CAP_VERTEX_COLOR_CLAMPED:
 135             return !is_r500;
 136
 137         /* Supported on r500 only. */
 138         case PIPE_CAP_VERTEX_COLOR_UNCLAMPED:
 139         case PIPE_CAP_MIXED_COLORBUFFER_FORMATS:
 140         case PIPE_CAP_SM3:
 141             return is_r500 ? 1 : 0;
 142
 143         /* Unsupported features. */
 144         case PIPE_CAP_QUERY_TIME_ELAPSED:
 145         case PIPE_CAP_QUERY_PIPELINE_STATISTICS:
 146         case PIPE_CAP_MAX_DUAL_SOURCE_RENDER_TARGETS:
 147         case PIPE_CAP_INDEP_BLEND_ENABLE:
 148         case PIPE_CAP_INDEP_BLEND_FUNC:
 149         case PIPE_CAP_DEPTH_CLIP_DISABLE:
 150         case PIPE_CAP_SHADER_STENCIL_EXPORT:
 151         case PIPE_CAP_MAX_TEXTURE_ARRAY_LAYERS:
 152         case PIPE_CAP_TGSI_INSTANCEID:
 153         case PIPE_CAP_TGSI_FS_COORD_ORIGIN_LOWER_LEFT:
 154         case PIPE_CAP_TGSI_FS_COORD_PIXEL_CENTER_INTEGER:
 155         case PIPE_CAP_SEAMLESS_CUBE_MAP:
 156         case PIPE_CAP_SEAMLESS_CUBE_MAP_PER_TEXTURE:
 157         case PIPE_CAP_MIN_TEXEL_OFFSET:
 158         case PIPE_CAP_MAX_TEXEL_OFFSET:
 159         case PIPE_CAP_MIN_TEXTURE_GATHER_OFFSET:
 160         case PIPE_CAP_MAX_TEXTURE_GATHER_OFFSET:
 161         case PIPE_CAP_MAX_STREAM_OUTPUT_BUFFERS:
 162         case PIPE_CAP_MAX_STREAM_OUTPUT_SEPARATE_COMPONENTS:
 163         case PIPE_CAP_MAX_STREAM_OUTPUT_INTERLEAVED_COMPONENTS:
 164         case PIPE_CAP_MAX_GEOMETRY_OUTPUT_VERTICES:
 165         case PIPE_CAP_MAX_GEOMETRY_TOTAL_OUTPUT_COMPONENTS:
 166         case PIPE_CAP_MAX_VERTEX_STREAMS:
 167         case PIPE_CAP_STREAM_OUTPUT_PAUSE_RESUME:
 168         case PIPE_CAP_STREAM_OUTPUT_INTERLEAVE_BUFFERS:
 169         case PIPE_CAP_FRAGMENT_COLOR_CLAMPED:
 170         case PIPE_CAP_QUADS_FOLLOW_PROVOKING_VERTEX_CONVENTION:
 171         case PIPE_CAP_COMPUTE:
 172         case PIPE_CAP_START_INSTANCE:
 173         case PIPE_CAP_QUERY_TIMESTAMP:
 174         case PIPE_CAP_TEXTURE_MULTISAMPLE:
 175         case PIPE_CAP_CUBE_MAP_ARRAY:
 176         case PIPE_CAP_TEXTURE_BUFFER_OBJECTS:
 177         case PIPE_CAP_TEXTURE_BUFFER_OFFSET_ALIGNMENT:
 178         case PIPE_CAP_TEXTURE_BORDER_COLOR_QUIRK:
 179         case PIPE_CAP_MAX_TEXTURE_BUFFER_SIZE:
 180         case PIPE_CAP_TGSI_VS_LAYER_VIEWPORT:
 181         case PIPE_CAP_MAX_TEXTURE_GATHER_COMPONENTS:
 182         case PIPE_CAP_TEXTURE_GATHER_SM5:
 183         case PIPE_CAP_TEXTURE_QUERY_LOD:
 184         case PIPE_CAP_FAKE_SW_MSAA:
 185         case PIPE_CAP_SAMPLE_SHADING:
 186         case PIPE_CAP_TEXTURE_GATHER_OFFSETS:
 187         case PIPE_CAP_DRAW_INDIRECT:
 188         case PIPE_CAP_MULTI_DRAW_INDIRECT:
 189         case PIPE_CAP_MULTI_DRAW_INDIRECT_PARAMS:
 190         case PIPE_CAP_TGSI_FS_FINE_DERIVATIVE:
 191         case PIPE_CAP_CONDITIONAL_RENDER_INVERTED:
 192         case PIPE_CAP_SAMPLER_VIEW_TARGET:
 193         case PIPE_CAP_VERTEXID_NOBASE:
 194         case PIPE_CAP_POLYGON_OFFSET_CLAMP:
 195         case PIPE_CAP_MULTISAMPLE_Z_RESOLVE:
 196         case PIPE_CAP_RESOURCE_FROM_USER_MEMORY:
 197         case PIPE_CAP_DEVICE_RESET_STATUS_QUERY:
 198         case PIPE_CAP_MAX_SHADER_PATCH_VARYINGS:
 199         case PIPE_CAP_TEXTURE_FLOAT_LINEAR:
 200         case PIPE_CAP_TEXTURE_HALF_FLOAT_LINEAR:
 201         case PIPE_CAP_DEPTH_BOUNDS_TEST:
 202         case PIPE_CAP_TGSI_TXQS:
 203         case PIPE_CAP_FORCE_PERSAMPLE_INTERP:
 204         case PIPE_CAP_SHAREABLE_SHADERS:
 205         case PIPE_CAP_COPY_BETWEEN_COMPRESSED_AND_PLAIN_FORMATS:
 206         case PIPE_CAP_CLEAR_TEXTURE:
 207         case PIPE_CAP_DRAW_PARAMETERS:
 208         case PIPE_CAP_TGSI_PACK_HALF_FLOAT:
 209         case PIPE_CAP_TGSI_FS_POSITION_IS_SYSVAL:
 210         case PIPE_CAP_TGSI_FS_FACE_IS_INTEGER_SYSVAL:
 211         case PIPE_CAP_SHADER_BUFFER_OFFSET_ALIGNMENT:
 212         case PIPE_CAP_INVALIDATE_BUFFER:
 213         case PIPE_CAP_GENERATE_MIPMAP:
 214         case PIPE_CAP_STRING_MARKER:
 215         case PIPE_CAP_BUFFER_SAMPLER_VIEW_RGBA_ONLY:
 216         case PIPE_CAP_SURFACE_REINTERPRET_BLOCKS:
 217         case PIPE_CAP_QUERY_BUFFER_OBJECT:
 218         case PIPE_CAP_QUERY_MEMORY_INFO:
 219         case PIPE_CAP_FRAMEBUFFER_NO_ATTACHMENT:
 220         case PIPE_CAP_ROBUST_BUFFER_ACCESS_BEHAVIOR:
 221         case PIPE_CAP_CULL_DISTANCE:
 222         case PIPE_CAP_PRIMITIVE_RESTART_FOR_PATCHES:
 223         case PIPE_CAP_TGSI_VOTE:
 224         case PIPE_CAP_MAX_WINDOW_RECTANGLES:
 225         case PIPE_CAP_POLYGON_OFFSET_UNITS_UNSCALED:
 226         case PIPE_CAP_VIEWPORT_SUBPIXEL_BITS:
 227         case PIPE_CAP_TGSI_ARRAY_COMPONENTS:
 228         case PIPE_CAP_TGSI_CAN_READ_OUTPUTS:
 229         case PIPE_CAP_NATIVE_FENCE_FD:
 230         case PIPE_CAP_GLSL_OPTIMIZE_CONSERVATIVELY:
 231         case PIPE_CAP_TGSI_FS_FBFETCH:
 232         case PIPE_CAP_TGSI_MUL_ZERO_WINS:
 233         case PIPE_CAP_DOUBLES:
 234         case PIPE_CAP_INT64:
 235         case PIPE_CAP_INT64_DIVMOD:
 236         case PIPE_CAP_TGSI_TEX_TXF_LZ:
 237         case PIPE_CAP_TGSI_CLOCK:
 238         case PIPE_CAP_POLYGON_MODE_FILL_RECTANGLE:
 239         case PIPE_CAP_SPARSE_BUFFER_PAGE_SIZE:
 240         case PIPE_CAP_TGSI_BALLOT:
 241         case PIPE_CAP_TGSI_TES_LAYER_VIEWPORT:
 242         case PIPE_CAP_CAN_BIND_CONST_BUFFER_AS_VERTEX:
 243         case PIPE_CAP_POST_DEPTH_COVERAGE:
 244         case PIPE_CAP_BINDLESS_TEXTURE:
 245         case PIPE_CAP_NIR_SAMPLERS_AS_DEREF:
 246         case PIPE_CAP_QUERY_SO_OVERFLOW:
 247         case PIPE_CAP_MEMOBJ:
 248         case PIPE_CAP_LOAD_CONSTBUF:
 249             return 0;
 250
 251         /* SWTCL-only features. */
 252         case PIPE_CAP_PRIMITIVE_RESTART:
 253         case PIPE_CAP_USER_VERTEX_BUFFERS:
 254         case PIPE_CAP_TGSI_VS_WINDOW_SPACE_POSITION:
 255             return !r300screen->caps.has_tcl;
 256
 257         /* HWTCL-only features / limitations. */
 258         case PIPE_CAP_VERTEX_BUFFER_OFFSET_4BYTE_ALIGNED_ONLY:
 259         case PIPE_CAP_VERTEX_BUFFER_STRIDE_4BYTE_ALIGNED_ONLY:
 260         case PIPE_CAP_VERTEX_ELEMENT_SRC_OFFSET_4BYTE_ALIGNED_ONLY:
 261             return r300screen->caps.has_tcl;
 262         case PIPE_CAP_TGSI_TEXCOORD:
 263             return 0;
 264
 265         /* Texturing. */
 266         case PIPE_CAP_MAX_TEXTURE_2D_LEVELS:
 267         case PIPE_CAP_MAX_TEXTURE_3D_LEVELS:
 268         case PIPE_CAP_MAX_TEXTURE_CUBE_LEVELS:
 269             /* 13 == 4096, 12 == 2048 */
 270             return is_r500 ? 13 : 12;
 271
 272         /* Render targets. */
 273         case PIPE_CAP_MAX_RENDER_TARGETS:
 274             return 4;
 275         case PIPE_CAP_ENDIANNESS:
 276             return PIPE_ENDIAN_LITTLE;
 277
 278         case PIPE_CAP_MAX_VIEWPORTS:
 279             return 1;
 280
 281         case PIPE_CAP_MAX_VERTEX_ATTRIB_STRIDE:
 282             return 2048;
 283
 284         case PIPE_CAP_VENDOR_ID:
 285                 return 0x1002;
 286         case PIPE_CAP_DEVICE_ID:
 287                 return r300screen->info.pci_id;
 288         case PIPE_CAP_ACCELERATED:
 289                 return 1;
 290         case PIPE_CAP_VIDEO_MEMORY:
 291                 return r300screen->info.vram_size >> 20;
 292         case PIPE_CAP_UMA:
 293                 return 0;
 294         case PIPE_CAP_PCI_GROUP:
 295             return r300screen->info.pci_domain;
 296         case PIPE_CAP_PCI_BUS:
 297             return r300screen->info.pci_bus;
 298         case PIPE_CAP_PCI_DEVICE:
 299             return r300screen->info.pci_dev;
 300         case PIPE_CAP_PCI_FUNCTION:
 301             return r300screen->info.pci_func;
 302     }
 303     return 0;
 304 }
 305
 306 static int r300_get_shader_param(struct pipe_screen *pscreen,
 307                                  enum pipe_shader_type shader,
 308                                  enum pipe_shader_cap param)
 309 {
 310    struct r300_screen* r300screen = r300_screen(pscreen);
 311    boolean is_r400 = r300screen->caps.is_r400;
 312    boolean is_r500 = r300screen->caps.is_r500;
 313
 314    switch (shader) {
 315     case PIPE_SHADER_FRAGMENT:
 316         switch (param)
 317         {
 318         case PIPE_SHADER_CAP_MAX_INSTRUCTIONS:
 319             return is_r500 || is_r400 ? 512 : 96;
 320         case PIPE_SHADER_CAP_MAX_ALU_INSTRUCTIONS:
 321             return is_r500 || is_r400 ? 512 : 64;
 322         case PIPE_SHADER_CAP_MAX_TEX_INSTRUCTIONS:
 323             return is_r500 || is_r400 ? 512 : 32;
 324         case PIPE_SHADER_CAP_MAX_TEX_INDIRECTIONS:
 325             return is_r500 ? 511 : 4;
 326         case PIPE_SHADER_CAP_MAX_CONTROL_FLOW_DEPTH:
 327             return is_r500 ? 64 : 0; /* Actually unlimited on r500. */
 328             /* Fragment shader limits. */
 329         case PIPE_SHADER_CAP_MAX_INPUTS:
 330             /* 2 colors + 8 texcoords are always supported
 331              * (minus fog and wpos).
 332              *
 333              * R500 has the ability to turn 3rd and 4th color into
 334              * additional texcoords but there is no two-sided color
 335              * selection then. However the facing bit can be used instead. */
 336             return 10;
 337         case PIPE_SHADER_CAP_MAX_OUTPUTS:
 338             return 4;
 339         case PIPE_SHADER_CAP_MAX_CONST_BUFFER_SIZE:
 340             return (is_r500 ? 256 : 32) * sizeof(float[4]);
 341         case PIPE_SHADER_CAP_MAX_CONST_BUFFERS:
 342         case PIPE_SHADER_CAP_TGSI_ANY_INOUT_DECL_RANGE:
 343             return 1;
 344         case PIPE_SHADER_CAP_MAX_TEMPS:
 345             return is_r500 ? 128 : is_r400 ? 64 : 32;
 346         case PIPE_SHADER_CAP_MAX_TEXTURE_SAMPLERS:
 347         case PIPE_SHADER_CAP_MAX_SAMPLER_VIEWS:
 348            return r300screen->caps.num_tex_units;
 349         case PIPE_SHADER_CAP_TGSI_CONT_SUPPORTED:
 350         case PIPE_SHADER_CAP_TGSI_SQRT_SUPPORTED:
 351         case PIPE_SHADER_CAP_INDIRECT_INPUT_ADDR:
 352         case PIPE_SHADER_CAP_INDIRECT_OUTPUT_ADDR:
 353         case PIPE_SHADER_CAP_INDIRECT_TEMP_ADDR:
 354         case PIPE_SHADER_CAP_INDIRECT_CONST_ADDR:
 355         case PIPE_SHADER_CAP_SUBROUTINES:
 356         case PIPE_SHADER_CAP_INTEGERS:
 357         case PIPE_SHADER_CAP_FP16:
 358         case PIPE_SHADER_CAP_TGSI_DROUND_SUPPORTED:
 359         case PIPE_SHADER_CAP_TGSI_DFRACEXP_DLDEXP_SUPPORTED:
 360         case PIPE_SHADER_CAP_TGSI_FMA_SUPPORTED:
 361         case PIPE_SHADER_CAP_MAX_SHADER_BUFFERS:
 362         case PIPE_SHADER_CAP_MAX_SHADER_IMAGES:
 363         case PIPE_SHADER_CAP_LOWER_IF_THRESHOLD:
 364         case PIPE_SHADER_CAP_TGSI_SKIP_MERGE_REGISTERS:
 365             return 0;
 366         case PIPE_SHADER_CAP_MAX_UNROLL_ITERATIONS_HINT:
 367             return 32;
 368         case PIPE_SHADER_CAP_PREFERRED_IR:
 369             return PIPE_SHADER_IR_TGSI;
 370         case PIPE_SHADER_CAP_SUPPORTED_IRS:
 371             return 0;
 372         }
 373         break;
 374     case PIPE_SHADER_VERTEX:
 375         switch (param)
 376         {
 377         case PIPE_SHADER_CAP_MAX_TEXTURE_SAMPLERS:
 378         case PIPE_SHADER_CAP_MAX_SAMPLER_VIEWS:
 379         case PIPE_SHADER_CAP_SUBROUTINES:
 380             return 0;
 381         default:;
 382         }
 383
 384         if (!r300screen->caps.has_tcl) {
 385             return draw_get_shader_param(shader, param);
 386         }
 387
 388         switch (param)
 389         {
 390         case PIPE_SHADER_CAP_MAX_INSTRUCTIONS:
 391         case PIPE_SHADER_CAP_MAX_ALU_INSTRUCTIONS:
 392             return is_r500 ? 1024 : 256;
 393         case PIPE_SHADER_CAP_MAX_CONTROL_FLOW_DEPTH:
 394             return is_r500 ? 4 : 0; /* For loops; not sure about conditionals. */
 395         case PIPE_SHADER_CAP_MAX_INPUTS:
 396             return 16;
 397         case PIPE_SHADER_CAP_MAX_OUTPUTS:
 398             return 10;
 399         case PIPE_SHADER_CAP_MAX_CONST_BUFFER_SIZE:
 400             return 256 * sizeof(float[4]);
 401         case PIPE_SHADER_CAP_MAX_CONST_BUFFERS:
 402             return 1;
 403         case PIPE_SHADER_CAP_MAX_TEMPS:
 404             return 32;
 405         case PIPE_SHADER_CAP_INDIRECT_CONST_ADDR:
 406         case PIPE_SHADER_CAP_TGSI_ANY_INOUT_DECL_RANGE:
 407             return 1;
 408         case PIPE_SHADER_CAP_MAX_TEX_INSTRUCTIONS:
 409         case PIPE_SHADER_CAP_MAX_TEX_INDIRECTIONS:
 410         case PIPE_SHADER_CAP_TGSI_CONT_SUPPORTED:
 411         case PIPE_SHADER_CAP_TGSI_SQRT_SUPPORTED:
 412         case PIPE_SHADER_CAP_INDIRECT_INPUT_ADDR:
 413         case PIPE_SHADER_CAP_INDIRECT_OUTPUT_ADDR:
 414         case PIPE_SHADER_CAP_INDIRECT_TEMP_ADDR:
 415         case PIPE_SHADER_CAP_SUBROUTINES:
 416         case PIPE_SHADER_CAP_INTEGERS:
 417         case PIPE_SHADER_CAP_FP16:
 418         case PIPE_SHADER_CAP_MAX_TEXTURE_SAMPLERS:
 419         case PIPE_SHADER_CAP_MAX_SAMPLER_VIEWS:
 420         case PIPE_SHADER_CAP_TGSI_DROUND_SUPPORTED:
 421         case PIPE_SHADER_CAP_TGSI_DFRACEXP_DLDEXP_SUPPORTED:
 422         case PIPE_SHADER_CAP_TGSI_FMA_SUPPORTED:
 423         case PIPE_SHADER_CAP_MAX_SHADER_BUFFERS:
 424         case PIPE_SHADER_CAP_MAX_SHADER_IMAGES:
 425         case PIPE_SHADER_CAP_LOWER_IF_THRESHOLD:
 426         case PIPE_SHADER_CAP_TGSI_SKIP_MERGE_REGISTERS:
 427             return 0;
 428         case PIPE_SHADER_CAP_MAX_UNROLL_ITERATIONS_HINT:
 429             return 32;
 430         case PIPE_SHADER_CAP_PREFERRED_IR:
 431             return PIPE_SHADER_IR_TGSI;
 432         case PIPE_SHADER_CAP_SUPPORTED_IRS:
 433             return 0;
 434         }
 435         break;
 436     default:
 437         ; /* nothing */
 438     }
 439     return 0;
 440 }
 441
 442 static float r300_get_paramf(struct pipe_screen* pscreen,
 443                              enum pipe_capf param)
 444 {
 445     struct r300_screen* r300screen = r300_screen(pscreen);
 446
 447     switch (param) {
 448         case PIPE_CAPF_MAX_LINE_WIDTH:
 449         case PIPE_CAPF_MAX_LINE_WIDTH_AA:
 450         case PIPE_CAPF_MAX_POINT_WIDTH:
 451         case PIPE_CAPF_MAX_POINT_WIDTH_AA:
 452             /* The maximum dimensions of the colorbuffer are our practical
 453              * rendering limits. 2048 pixels should be enough for anybody. */
 454             if (r300screen->caps.is_r500) {
 455                 return 4096.0f;
 456             } else if (r300screen->caps.is_r400) {
 457                 return 4021.0f;
 458             } else {
 459                 return 2560.0f;
 460             }
 461         case PIPE_CAPF_MAX_TEXTURE_ANISOTROPY:
 462             return 16.0f;
 463         case PIPE_CAPF_MAX_TEXTURE_LOD_BIAS:
 464             return 16.0f;
 465         case PIPE_CAPF_GUARD_BAND_LEFT:
 466         case PIPE_CAPF_GUARD_BAND_TOP:
 467         case PIPE_CAPF_GUARD_BAND_RIGHT:
 468         case PIPE_CAPF_GUARD_BAND_BOTTOM:
 469             return 0.0f;
 470         default:
 471             debug_printf("r300: Warning: Unknown CAP %d in get_paramf.\n",
 472                          param);
 473             return 0.0f;
 474     }
 475 }
 476
 477 static int r300_get_video_param(struct pipe_screen *screen,
 478                                 enum pipe_video_profile profile,
 479                                 enum pipe_video_entrypoint entrypoint,
 480                                 enum pipe_video_cap param)
 481 {
 482    switch (param) {
 483       case PIPE_VIDEO_CAP_SUPPORTED:
 484          return vl_profile_supported(screen, profile, entrypoint);
 485       case PIPE_VIDEO_CAP_NPOT_TEXTURES:
 486          return 0;
 487       case PIPE_VIDEO_CAP_MAX_WIDTH:
 488       case PIPE_VIDEO_CAP_MAX_HEIGHT:
 489          return vl_video_buffer_max_size(screen);
 490       case PIPE_VIDEO_CAP_PREFERED_FORMAT:
 491          return PIPE_FORMAT_NV12;
 492       case PIPE_VIDEO_CAP_PREFERS_INTERLACED:
 493          return false;
 494       case PIPE_VIDEO_CAP_SUPPORTS_INTERLACED:
 495          return false;
 496       case PIPE_VIDEO_CAP_SUPPORTS_PROGRESSIVE:
 497          return true;
 498       case PIPE_VIDEO_CAP_MAX_LEVEL:
 499          return vl_level_supported(screen, profile);
 500       default:
 501          return 0;
 502    }
 503 }
 504
 505 /**
 506  * Whether the format matches:
 507  *   PIPE_FORMAT_?10?10?10?2_UNORM
 508  */
 509 static inline boolean
 510 util_format_is_rgba1010102_variant(const struct util_format_description *desc)
 511 {
 512    static const unsigned size[4] = {10, 10, 10, 2};
 513    unsigned chan;
 514
 515    if (desc->block.width != 1 ||
 516        desc->block.height != 1 ||
 517        desc->block.bits != 32)
 518       return FALSE;
 519
 520    for (chan = 0; chan < 4; ++chan) {
 521       if(desc->channel[chan].type != UTIL_FORMAT_TYPE_UNSIGNED &&
 522          desc->channel[chan].type != UTIL_FORMAT_TYPE_VOID)
 523          return FALSE;
 524       if (desc->channel[chan].size != size[chan])
 525          return FALSE;
 526    }
 527
 528    return TRUE;
 529 }
 530
 531 static bool r300_is_blending_supported(struct r300_screen *rscreen,
 532                                        enum pipe_format format)
 533 {
 534     int c;
 535     const struct util_format_description *desc =
 536         util_format_description(format);
 537
 538     if (desc->layout != UTIL_FORMAT_LAYOUT_PLAIN)
 539         return false;
 540
 541     c = util_format_get_first_non_void_channel(format);
 542
 543     /* RGBA16F */
 544     if (rscreen->caps.is_r500 &&
 545         desc->nr_channels == 4 &&
 546         desc->channel[c].size == 16 &&
 547         desc->channel[c].type == UTIL_FORMAT_TYPE_FLOAT)
 548         return true;
 549
 550     if (desc->channel[c].normalized &&
 551         desc->channel[c].type == UTIL_FORMAT_TYPE_UNSIGNED &&
 552         desc->channel[c].size >= 4 &&
 553         desc->channel[c].size <= 10) {
 554         /* RGB10_A2, RGBA8, RGB5_A1, RGBA4, RGB565 */
 555         if (desc->nr_channels >= 3)
 556             return true;
 557
 558         if (format == PIPE_FORMAT_R8G8_UNORM)
 559             return true;
 560
 561         /* R8, I8, L8, A8 */
 562         if (desc->nr_channels == 1)
 563             return true;
 564     }
 565
 566     return false;
 567 }
 568
 569 static boolean r300_is_format_supported(struct pipe_screen* screen,
 570                                         enum pipe_format format,
 571                                         enum pipe_texture_target target,
 572                                         unsigned sample_count,
 573                                         unsigned usage)
 574 {
 575     uint32_t retval = 0;
 576     boolean is_r500 = r300_screen(screen)->caps.is_r500;
 577     boolean is_r400 = r300_screen(screen)->caps.is_r400;
 578     boolean is_color2101010 = format == PIPE_FORMAT_R10G10B10A2_UNORM ||
 579                               format == PIPE_FORMAT_R10G10B10X2_SNORM ||
 580                               format == PIPE_FORMAT_B10G10R10A2_UNORM ||
 581                               format == PIPE_FORMAT_B10G10R10X2_UNORM ||
 582                               format == PIPE_FORMAT_R10SG10SB10SA2U_NORM;
 583     boolean is_ati1n = format == PIPE_FORMAT_RGTC1_UNORM ||
 584                        format == PIPE_FORMAT_RGTC1_SNORM ||
 585                        format == PIPE_FORMAT_LATC1_UNORM ||
 586                        format == PIPE_FORMAT_LATC1_SNORM;
 587     boolean is_ati2n = format == PIPE_FORMAT_RGTC2_UNORM ||
 588                        format == PIPE_FORMAT_RGTC2_SNORM ||
 589                        format == PIPE_FORMAT_LATC2_UNORM ||
 590                        format == PIPE_FORMAT_LATC2_SNORM;
 591     boolean is_half_float = format == PIPE_FORMAT_R16_FLOAT ||
 592                             format == PIPE_FORMAT_R16G16_FLOAT ||
 593                             format == PIPE_FORMAT_R16G16B16_FLOAT ||
 594                             format == PIPE_FORMAT_R16G16B16A16_FLOAT ||
 595                             format == PIPE_FORMAT_R16G16B16X16_FLOAT;
 596     const struct util_format_description *desc;
 597
 598     if (!util_format_is_supported(format, usage))
 599        return FALSE;
 600
 601     /* Check multisampling support. */
 602     switch (sample_count) {
 603         case 0:
 604         case 1:
 605             break;
 606         case 2:
 607         case 4:
 608         case 6:
 609             /* No texturing and scanout. */
 610             if (usage & (PIPE_BIND_SAMPLER_VIEW |
 611                          PIPE_BIND_DISPLAY_TARGET |
 612                          PIPE_BIND_SCANOUT)) {
 613                 return FALSE;
 614             }
 615
 616             desc = util_format_description(format);
 617
 618             if (is_r500) {
 619                 /* Only allow depth/stencil, RGBA8, RGBA1010102, RGBA16F. */
 620                 if (!util_format_is_depth_or_stencil(format) &&
 621                     !util_format_is_rgba8_variant(desc) &&
 622                     !util_format_is_rgba1010102_variant(desc) &&
 623                     format != PIPE_FORMAT_R16G16B16A16_FLOAT &&
 624                     format != PIPE_FORMAT_R16G16B16X16_FLOAT) {
 625                     return FALSE;
 626                 }
 627             } else {
 628                 /* Only allow depth/stencil, RGBA8. */
 629                 if (!util_format_is_depth_or_stencil(format) &&
 630                     !util_format_is_rgba8_variant(desc)) {
 631                     return FALSE;
 632                 }
 633             }
 634             break;
 635         default:
 636             return FALSE;
 637     }
 638
 639     /* Check sampler format support. */
 640     if ((usage & PIPE_BIND_SAMPLER_VIEW) &&
 641         /* these two are broken for an unknown reason */
 642         format != PIPE_FORMAT_R8G8B8X8_SNORM &&
 643         format != PIPE_FORMAT_R16G16B16X16_SNORM &&
 644         /* ATI1N is r5xx-only. */
 645         (is_r500 || !is_ati1n) &&
 646         /* ATI2N is supported on r4xx-r5xx. */
 647         (is_r400 || is_r500 || !is_ati2n) &&
 648         r300_is_sampler_format_supported(format)) {
 649         retval |= PIPE_BIND_SAMPLER_VIEW;
 650     }
 651
 652     /* Check colorbuffer format support. */
 653     if ((usage & (PIPE_BIND_RENDER_TARGET |
 654                   PIPE_BIND_DISPLAY_TARGET |
 655                   PIPE_BIND_SCANOUT |
 656                   PIPE_BIND_SHARED |
 657                   PIPE_BIND_BLENDABLE)) &&
 658         /* 2101010 cannot be rendered to on non-r5xx. */
 659         (!is_color2101010 || is_r500) &&
 660         r300_is_colorbuffer_format_supported(format)) {
 661         retval |= usage &
 662             (PIPE_BIND_RENDER_TARGET |
 663              PIPE_BIND_DISPLAY_TARGET |
 664              PIPE_BIND_SCANOUT |
 665              PIPE_BIND_SHARED);
 666
 667         if (r300_is_blending_supported(r300_screen(screen), format)) {
 668             retval |= usage & PIPE_BIND_BLENDABLE;
 669         }
 670     }
 671
 672     /* Check depth-stencil format support. */
 673     if (usage & PIPE_BIND_DEPTH_STENCIL &&
 674         r300_is_zs_format_supported(format)) {
 675         retval |= PIPE_BIND_DEPTH_STENCIL;
 676     }
 677
 678     /* Check vertex buffer format support. */
 679     if (usage & PIPE_BIND_VERTEX_BUFFER) {
 680         if (r300_screen(screen)->caps.has_tcl) {
 681             /* Half float is supported on >= R400. */
 682             if ((is_r400 || is_r500 || !is_half_float) &&
 683                 r300_translate_vertex_data_type(format) != R300_INVALID_FORMAT) {
 684                 retval |= PIPE_BIND_VERTEX_BUFFER;
 685             }
 686         } else {
 687             /* SW TCL */
 688             if (!util_format_is_pure_integer(format)) {
 689                 retval |= PIPE_BIND_VERTEX_BUFFER;
 690             }
 691         }
 692     }
 693
 694     return retval == usage;
 695 }
 696
 697 static void r300_destroy_screen(struct pipe_screen* pscreen)
 698 {
 699     struct r300_screen* r300screen = r300_screen(pscreen);
 700     struct radeon_winsys *rws = radeon_winsys(pscreen);
 701
 702     if (rws && !rws->unref(rws))
 703       return;
 704
 705     mtx_destroy(&r300screen->cmask_mutex);
 706     slab_destroy_parent(&r300screen->pool_transfers);
 707
 708     if (rws)
 709       rws->destroy(rws);
 710
 711     FREE(r300screen);
 712 }
 713
 714 static void r300_fence_reference(struct pipe_screen *screen,
 715                                  struct pipe_fence_handle **ptr,
 716                                  struct pipe_fence_handle *fence)
 717 {
 718     struct radeon_winsys *rws = r300_screen(screen)->rws;
 719
 720     rws->fence_reference(ptr, fence);
 721 }
 722
 723 static boolean r300_fence_finish(struct pipe_screen *screen,
 724                                  struct pipe_context *ctx,
 725                                  struct pipe_fence_handle *fence,
 726                                  uint64_t timeout)
 727 {
 728     struct radeon_winsys *rws = r300_screen(screen)->rws;
 729
 730     return rws->fence_wait(rws, fence, timeout);
 731 }
 732
 733 struct pipe_screen* r300_screen_create(struct radeon_winsys *rws,
 734                                        const struct pipe_screen_config *config)
 735 {
 736     struct r300_screen *r300screen = CALLOC_STRUCT(r300_screen);
 737
 738     if (!r300screen) {
 739         FREE(r300screen);
 740         return NULL;
 741     }
 742
 743     rws->query_info(rws, &r300screen->info);
 744
 745     r300_init_debug(r300screen);
 746     r300_parse_chipset(r300screen->info.pci_id, &r300screen->caps);
 747
 748     if (SCREEN_DBG_ON(r300screen, DBG_NO_ZMASK))
 749         r300screen->caps.zmask_ram = 0;
 750     if (SCREEN_DBG_ON(r300screen, DBG_NO_HIZ))
 751         r300screen->caps.hiz_ram = 0;
 752
 753     r300screen->rws = rws;
 754     r300screen->screen.destroy = r300_destroy_screen;
 755     r300screen->screen.get_name = r300_get_name;
 756     r300screen->screen.get_vendor = r300_get_vendor;
 757     r300screen->screen.get_device_vendor = r300_get_device_vendor;
 758     r300screen->screen.get_param = r300_get_param;
 759     r300screen->screen.get_shader_param = r300_get_shader_param;
 760     r300screen->screen.get_paramf = r300_get_paramf;
 761     r300screen->screen.get_video_param = r300_get_video_param;
 762     r300screen->screen.is_format_supported = r300_is_format_supported;
 763     r300screen->screen.is_video_format_supported = vl_video_buffer_is_format_supported;
 764     r300screen->screen.context_create = r300_create_context;
 765     r300screen->screen.fence_reference = r300_fence_reference;
 766     r300screen->screen.fence_finish = r300_fence_finish;
 767
 768     r300_init_screen_resource_functions(r300screen);
 769
 770     slab_create_parent(&r300screen->pool_transfers, sizeof(struct pipe_transfer), 64);
 771
 772     util_format_s3tc_init();
 773     (void) mtx_init(&r300screen->cmask_mutex, mtx_plain);
 774
 775     return &r300screen->screen;
 776 }