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_INDEX_BUFFERS:
 113         case PIPE_CAP_USER_CONSTANT_BUFFERS:
 114         case PIPE_CAP_PREFER_BLIT_BASED_TEXTURE_TRANSFER:
 115         case PIPE_CAP_BUFFER_MAP_PERSISTENT_COHERENT:
 116         case PIPE_CAP_CLIP_HALFZ:
 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             return 0;
 231
 232         /* SWTCL-only features. */
 233         case PIPE_CAP_PRIMITIVE_RESTART:
 234         case PIPE_CAP_USER_VERTEX_BUFFERS:
 235         case PIPE_CAP_TGSI_VS_WINDOW_SPACE_POSITION:
 236             return !r300screen->caps.has_tcl;
 237
 238         /* HWTCL-only features / limitations. */
 239         case PIPE_CAP_VERTEX_BUFFER_OFFSET_4BYTE_ALIGNED_ONLY:
 240         case PIPE_CAP_VERTEX_BUFFER_STRIDE_4BYTE_ALIGNED_ONLY:
 241         case PIPE_CAP_VERTEX_ELEMENT_SRC_OFFSET_4BYTE_ALIGNED_ONLY:
 242             return r300screen->caps.has_tcl;
 243         case PIPE_CAP_TGSI_TEXCOORD:
 244             return 0;
 245
 246         /* Texturing. */
 247         case PIPE_CAP_MAX_TEXTURE_2D_LEVELS:
 248         case PIPE_CAP_MAX_TEXTURE_3D_LEVELS:
 249         case PIPE_CAP_MAX_TEXTURE_CUBE_LEVELS:
 250             /* 13 == 4096, 12 == 2048 */
 251             return is_r500 ? 13 : 12;
 252
 253         /* Render targets. */
 254         case PIPE_CAP_MAX_RENDER_TARGETS:
 255             return 4;
 256         case PIPE_CAP_ENDIANNESS:
 257             return PIPE_ENDIAN_LITTLE;
 258
 259         case PIPE_CAP_MAX_VIEWPORTS:
 260             return 1;
 261
 262         case PIPE_CAP_MAX_VERTEX_ATTRIB_STRIDE:
 263             return 2048;
 264
 265         case PIPE_CAP_VENDOR_ID:
 266                 return 0x1002;
 267         case PIPE_CAP_DEVICE_ID:
 268                 return r300screen->info.pci_id;
 269         case PIPE_CAP_ACCELERATED:
 270                 return 1;
 271         case PIPE_CAP_VIDEO_MEMORY:
 272                 return r300screen->info.vram_size >> 20;
 273         case PIPE_CAP_UMA:
 274                 return 0;
 275         case PIPE_CAP_PCI_GROUP:
 276             return r300screen->info.pci_domain;
 277         case PIPE_CAP_PCI_BUS:
 278             return r300screen->info.pci_bus;
 279         case PIPE_CAP_PCI_DEVICE:
 280             return r300screen->info.pci_dev;
 281         case PIPE_CAP_PCI_FUNCTION:
 282             return r300screen->info.pci_func;
 283     }
 284     return 0;
 285 }
 286
 287 static int r300_get_shader_param(struct pipe_screen *pscreen, unsigned shader, enum pipe_shader_cap param)
 288 {
 289    struct r300_screen* r300screen = r300_screen(pscreen);
 290    boolean is_r400 = r300screen->caps.is_r400;
 291    boolean is_r500 = r300screen->caps.is_r500;
 292
 293    switch (shader) {
 294     case PIPE_SHADER_FRAGMENT:
 295         switch (param)
 296         {
 297         case PIPE_SHADER_CAP_MAX_INSTRUCTIONS:
 298             return is_r500 || is_r400 ? 512 : 96;
 299         case PIPE_SHADER_CAP_MAX_ALU_INSTRUCTIONS:
 300             return is_r500 || is_r400 ? 512 : 64;
 301         case PIPE_SHADER_CAP_MAX_TEX_INSTRUCTIONS:
 302             return is_r500 || is_r400 ? 512 : 32;
 303         case PIPE_SHADER_CAP_MAX_TEX_INDIRECTIONS:
 304             return is_r500 ? 511 : 4;
 305         case PIPE_SHADER_CAP_MAX_CONTROL_FLOW_DEPTH:
 306             return is_r500 ? 64 : 0; /* Actually unlimited on r500. */
 307             /* Fragment shader limits. */
 308         case PIPE_SHADER_CAP_MAX_INPUTS:
 309             /* 2 colors + 8 texcoords are always supported
 310              * (minus fog and wpos).
 311              *
 312              * R500 has the ability to turn 3rd and 4th color into
 313              * additional texcoords but there is no two-sided color
 314              * selection then. However the facing bit can be used instead. */
 315             return 10;
 316         case PIPE_SHADER_CAP_MAX_OUTPUTS:
 317             return 4;
 318         case PIPE_SHADER_CAP_MAX_CONST_BUFFER_SIZE:
 319             return (is_r500 ? 256 : 32) * sizeof(float[4]);
 320         case PIPE_SHADER_CAP_MAX_CONST_BUFFERS:
 321         case PIPE_SHADER_CAP_TGSI_ANY_INOUT_DECL_RANGE:
 322             return 1;
 323         case PIPE_SHADER_CAP_MAX_TEMPS:
 324             return is_r500 ? 128 : is_r400 ? 64 : 32;
 325         case PIPE_SHADER_CAP_MAX_PREDS:
 326             return 0; /* unused */
 327         case PIPE_SHADER_CAP_MAX_TEXTURE_SAMPLERS:
 328         case PIPE_SHADER_CAP_MAX_SAMPLER_VIEWS:
 329            return r300screen->caps.num_tex_units;
 330         case PIPE_SHADER_CAP_TGSI_CONT_SUPPORTED:
 331         case PIPE_SHADER_CAP_TGSI_SQRT_SUPPORTED:
 332         case PIPE_SHADER_CAP_INDIRECT_INPUT_ADDR:
 333         case PIPE_SHADER_CAP_INDIRECT_OUTPUT_ADDR:
 334         case PIPE_SHADER_CAP_INDIRECT_TEMP_ADDR:
 335         case PIPE_SHADER_CAP_INDIRECT_CONST_ADDR:
 336         case PIPE_SHADER_CAP_SUBROUTINES:
 337         case PIPE_SHADER_CAP_INTEGERS:
 338         case PIPE_SHADER_CAP_DOUBLES:
 339         case PIPE_SHADER_CAP_TGSI_DROUND_SUPPORTED:
 340         case PIPE_SHADER_CAP_TGSI_DFRACEXP_DLDEXP_SUPPORTED:
 341         case PIPE_SHADER_CAP_TGSI_FMA_SUPPORTED:
 342         case PIPE_SHADER_CAP_MAX_SHADER_BUFFERS:
 343         case PIPE_SHADER_CAP_MAX_SHADER_IMAGES:
 344         case PIPE_SHADER_CAP_LOWER_IF_THRESHOLD:
 345             return 0;
 346         case PIPE_SHADER_CAP_MAX_UNROLL_ITERATIONS_HINT:
 347             return 32;
 348         case PIPE_SHADER_CAP_PREFERRED_IR:
 349             return PIPE_SHADER_IR_TGSI;
 350         case PIPE_SHADER_CAP_SUPPORTED_IRS:
 351             return 0;
 352         }
 353         break;
 354     case PIPE_SHADER_VERTEX:
 355         switch (param)
 356         {
 357         case PIPE_SHADER_CAP_MAX_TEXTURE_SAMPLERS:
 358         case PIPE_SHADER_CAP_MAX_SAMPLER_VIEWS:
 359         case PIPE_SHADER_CAP_SUBROUTINES:
 360             return 0;
 361         default:;
 362         }
 363
 364         if (!r300screen->caps.has_tcl) {
 365             return draw_get_shader_param(shader, param);
 366         }
 367
 368         switch (param)
 369         {
 370         case PIPE_SHADER_CAP_MAX_INSTRUCTIONS:
 371         case PIPE_SHADER_CAP_MAX_ALU_INSTRUCTIONS:
 372             return is_r500 ? 1024 : 256;
 373         case PIPE_SHADER_CAP_MAX_CONTROL_FLOW_DEPTH:
 374             return is_r500 ? 4 : 0; /* For loops; not sure about conditionals. */
 375         case PIPE_SHADER_CAP_MAX_INPUTS:
 376             return 16;
 377         case PIPE_SHADER_CAP_MAX_OUTPUTS:
 378             return 10;
 379         case PIPE_SHADER_CAP_MAX_CONST_BUFFER_SIZE:
 380             return 256 * sizeof(float[4]);
 381         case PIPE_SHADER_CAP_MAX_CONST_BUFFERS:
 382             return 1;
 383         case PIPE_SHADER_CAP_MAX_TEMPS:
 384             return 32;
 385         case PIPE_SHADER_CAP_MAX_PREDS:
 386             return 0; /* unused */
 387         case PIPE_SHADER_CAP_INDIRECT_CONST_ADDR:
 388         case PIPE_SHADER_CAP_TGSI_ANY_INOUT_DECL_RANGE:
 389             return 1;
 390         case PIPE_SHADER_CAP_MAX_TEX_INSTRUCTIONS:
 391         case PIPE_SHADER_CAP_MAX_TEX_INDIRECTIONS:
 392         case PIPE_SHADER_CAP_TGSI_CONT_SUPPORTED:
 393         case PIPE_SHADER_CAP_TGSI_SQRT_SUPPORTED:
 394         case PIPE_SHADER_CAP_INDIRECT_INPUT_ADDR:
 395         case PIPE_SHADER_CAP_INDIRECT_OUTPUT_ADDR:
 396         case PIPE_SHADER_CAP_INDIRECT_TEMP_ADDR:
 397         case PIPE_SHADER_CAP_SUBROUTINES:
 398         case PIPE_SHADER_CAP_INTEGERS:
 399         case PIPE_SHADER_CAP_MAX_TEXTURE_SAMPLERS:
 400         case PIPE_SHADER_CAP_MAX_SAMPLER_VIEWS:
 401         case PIPE_SHADER_CAP_DOUBLES:
 402         case PIPE_SHADER_CAP_TGSI_DROUND_SUPPORTED:
 403         case PIPE_SHADER_CAP_TGSI_DFRACEXP_DLDEXP_SUPPORTED:
 404         case PIPE_SHADER_CAP_TGSI_FMA_SUPPORTED:
 405         case PIPE_SHADER_CAP_MAX_SHADER_BUFFERS:
 406         case PIPE_SHADER_CAP_MAX_SHADER_IMAGES:
 407         case PIPE_SHADER_CAP_LOWER_IF_THRESHOLD:
 408             return 0;
 409         case PIPE_SHADER_CAP_MAX_UNROLL_ITERATIONS_HINT:
 410             return 32;
 411         case PIPE_SHADER_CAP_PREFERRED_IR:
 412             return PIPE_SHADER_IR_TGSI;
 413         case PIPE_SHADER_CAP_SUPPORTED_IRS:
 414             return 0;
 415         }
 416         break;
 417     }
 418     return 0;
 419 }
 420
 421 static float r300_get_paramf(struct pipe_screen* pscreen,
 422                              enum pipe_capf param)
 423 {
 424     struct r300_screen* r300screen = r300_screen(pscreen);
 425
 426     switch (param) {
 427         case PIPE_CAPF_MAX_LINE_WIDTH:
 428         case PIPE_CAPF_MAX_LINE_WIDTH_AA:
 429         case PIPE_CAPF_MAX_POINT_WIDTH:
 430         case PIPE_CAPF_MAX_POINT_WIDTH_AA:
 431             /* The maximum dimensions of the colorbuffer are our practical
 432              * rendering limits. 2048 pixels should be enough for anybody. */
 433             if (r300screen->caps.is_r500) {
 434                 return 4096.0f;
 435             } else if (r300screen->caps.is_r400) {
 436                 return 4021.0f;
 437             } else {
 438                 return 2560.0f;
 439             }
 440         case PIPE_CAPF_MAX_TEXTURE_ANISOTROPY:
 441             return 16.0f;
 442         case PIPE_CAPF_MAX_TEXTURE_LOD_BIAS:
 443             return 16.0f;
 444         case PIPE_CAPF_GUARD_BAND_LEFT:
 445         case PIPE_CAPF_GUARD_BAND_TOP:
 446         case PIPE_CAPF_GUARD_BAND_RIGHT:
 447         case PIPE_CAPF_GUARD_BAND_BOTTOM:
 448             return 0.0f;
 449         default:
 450             debug_printf("r300: Warning: Unknown CAP %d in get_paramf.\n",
 451                          param);
 452             return 0.0f;
 453     }
 454 }
 455
 456 static int r300_get_video_param(struct pipe_screen *screen,
 457                                 enum pipe_video_profile profile,
 458                                 enum pipe_video_entrypoint entrypoint,
 459                                 enum pipe_video_cap param)
 460 {
 461    switch (param) {
 462       case PIPE_VIDEO_CAP_SUPPORTED:
 463          return vl_profile_supported(screen, profile, entrypoint);
 464       case PIPE_VIDEO_CAP_NPOT_TEXTURES:
 465          return 0;
 466       case PIPE_VIDEO_CAP_MAX_WIDTH:
 467       case PIPE_VIDEO_CAP_MAX_HEIGHT:
 468          return vl_video_buffer_max_size(screen);
 469       case PIPE_VIDEO_CAP_PREFERED_FORMAT:
 470          return PIPE_FORMAT_NV12;
 471       case PIPE_VIDEO_CAP_PREFERS_INTERLACED:
 472          return false;
 473       case PIPE_VIDEO_CAP_SUPPORTS_INTERLACED:
 474          return false;
 475       case PIPE_VIDEO_CAP_SUPPORTS_PROGRESSIVE:
 476          return true;
 477       case PIPE_VIDEO_CAP_MAX_LEVEL:
 478          return vl_level_supported(screen, profile);
 479       default:
 480          return 0;
 481    }
 482 }
 483
 484 /**
 485  * Whether the format matches:
 486  *   PIPE_FORMAT_?10?10?10?2_UNORM
 487  */
 488 static inline boolean
 489 util_format_is_rgba1010102_variant(const struct util_format_description *desc)
 490 {
 491    static const unsigned size[4] = {10, 10, 10, 2};
 492    unsigned chan;
 493
 494    if (desc->block.width != 1 ||
 495        desc->block.height != 1 ||
 496        desc->block.bits != 32)
 497       return FALSE;
 498
 499    for (chan = 0; chan < 4; ++chan) {
 500       if(desc->channel[chan].type != UTIL_FORMAT_TYPE_UNSIGNED &&
 501          desc->channel[chan].type != UTIL_FORMAT_TYPE_VOID)
 502          return FALSE;
 503       if (desc->channel[chan].size != size[chan])
 504          return FALSE;
 505    }
 506
 507    return TRUE;
 508 }
 509
 510 static bool r300_is_blending_supported(struct r300_screen *rscreen,
 511                                        enum pipe_format format)
 512 {
 513     int c;
 514     const struct util_format_description *desc =
 515         util_format_description(format);
 516
 517     if (desc->layout != UTIL_FORMAT_LAYOUT_PLAIN)
 518         return false;
 519
 520     c = util_format_get_first_non_void_channel(format);
 521
 522     /* RGBA16F */
 523     if (rscreen->caps.is_r500 &&
 524         desc->nr_channels == 4 &&
 525         desc->channel[c].size == 16 &&
 526         desc->channel[c].type == UTIL_FORMAT_TYPE_FLOAT)
 527         return true;
 528
 529     if (desc->channel[c].normalized &&
 530         desc->channel[c].type == UTIL_FORMAT_TYPE_UNSIGNED &&
 531         desc->channel[c].size >= 4 &&
 532         desc->channel[c].size <= 10) {
 533         /* RGB10_A2, RGBA8, RGB5_A1, RGBA4, RGB565 */
 534         if (desc->nr_channels >= 3)
 535             return true;
 536
 537         if (format == PIPE_FORMAT_R8G8_UNORM)
 538             return true;
 539
 540         /* R8, I8, L8, A8 */
 541         if (desc->nr_channels == 1)
 542             return true;
 543     }
 544
 545     return false;
 546 }
 547
 548 static boolean r300_is_format_supported(struct pipe_screen* screen,
 549                                         enum pipe_format format,
 550                                         enum pipe_texture_target target,
 551                                         unsigned sample_count,
 552                                         unsigned usage)
 553 {
 554     uint32_t retval = 0;
 555     boolean is_r500 = r300_screen(screen)->caps.is_r500;
 556     boolean is_r400 = r300_screen(screen)->caps.is_r400;
 557     boolean is_color2101010 = format == PIPE_FORMAT_R10G10B10A2_UNORM ||
 558                               format == PIPE_FORMAT_R10G10B10X2_SNORM ||
 559                               format == PIPE_FORMAT_B10G10R10A2_UNORM ||
 560                               format == PIPE_FORMAT_B10G10R10X2_UNORM ||
 561                               format == PIPE_FORMAT_R10SG10SB10SA2U_NORM;
 562     boolean is_ati1n = format == PIPE_FORMAT_RGTC1_UNORM ||
 563                        format == PIPE_FORMAT_RGTC1_SNORM ||
 564                        format == PIPE_FORMAT_LATC1_UNORM ||
 565                        format == PIPE_FORMAT_LATC1_SNORM;
 566     boolean is_ati2n = format == PIPE_FORMAT_RGTC2_UNORM ||
 567                        format == PIPE_FORMAT_RGTC2_SNORM ||
 568                        format == PIPE_FORMAT_LATC2_UNORM ||
 569                        format == PIPE_FORMAT_LATC2_SNORM;
 570     boolean is_half_float = format == PIPE_FORMAT_R16_FLOAT ||
 571                             format == PIPE_FORMAT_R16G16_FLOAT ||
 572                             format == PIPE_FORMAT_R16G16B16_FLOAT ||
 573                             format == PIPE_FORMAT_R16G16B16A16_FLOAT ||
 574                             format == PIPE_FORMAT_R16G16B16X16_FLOAT;
 575     const struct util_format_description *desc;
 576
 577     if (!util_format_is_supported(format, usage))
 578        return FALSE;
 579
 580     /* Check multisampling support. */
 581     switch (sample_count) {
 582         case 0:
 583         case 1:
 584             break;
 585         case 2:
 586         case 4:
 587         case 6:
 588             /* No texturing and scanout. */
 589             if (usage & (PIPE_BIND_SAMPLER_VIEW |
 590                          PIPE_BIND_DISPLAY_TARGET |
 591                          PIPE_BIND_SCANOUT)) {
 592                 return FALSE;
 593             }
 594
 595             desc = util_format_description(format);
 596
 597             if (is_r500) {
 598                 /* Only allow depth/stencil, RGBA8, RGBA1010102, RGBA16F. */
 599                 if (!util_format_is_depth_or_stencil(format) &&
 600                     !util_format_is_rgba8_variant(desc) &&
 601                     !util_format_is_rgba1010102_variant(desc) &&
 602                     format != PIPE_FORMAT_R16G16B16A16_FLOAT &&
 603                     format != PIPE_FORMAT_R16G16B16X16_FLOAT) {
 604                     return FALSE;
 605                 }
 606             } else {
 607                 /* Only allow depth/stencil, RGBA8. */
 608                 if (!util_format_is_depth_or_stencil(format) &&
 609                     !util_format_is_rgba8_variant(desc)) {
 610                     return FALSE;
 611                 }
 612             }
 613             break;
 614         default:
 615             return FALSE;
 616     }
 617
 618     /* Check sampler format support. */
 619     if ((usage & PIPE_BIND_SAMPLER_VIEW) &&
 620         /* these two are broken for an unknown reason */
 621         format != PIPE_FORMAT_R8G8B8X8_SNORM &&
 622         format != PIPE_FORMAT_R16G16B16X16_SNORM &&
 623         /* ATI1N is r5xx-only. */
 624         (is_r500 || !is_ati1n) &&
 625         /* ATI2N is supported on r4xx-r5xx. */
 626         (is_r400 || is_r500 || !is_ati2n) &&
 627         r300_is_sampler_format_supported(format)) {
 628         retval |= PIPE_BIND_SAMPLER_VIEW;
 629     }
 630
 631     /* Check colorbuffer format support. */
 632     if ((usage & (PIPE_BIND_RENDER_TARGET |
 633                   PIPE_BIND_DISPLAY_TARGET |
 634                   PIPE_BIND_SCANOUT |
 635                   PIPE_BIND_SHARED |
 636                   PIPE_BIND_BLENDABLE)) &&
 637         /* 2101010 cannot be rendered to on non-r5xx. */
 638         (!is_color2101010 || is_r500) &&
 639         r300_is_colorbuffer_format_supported(format)) {
 640         retval |= usage &
 641             (PIPE_BIND_RENDER_TARGET |
 642              PIPE_BIND_DISPLAY_TARGET |
 643              PIPE_BIND_SCANOUT |
 644              PIPE_BIND_SHARED);
 645
 646         if (r300_is_blending_supported(r300_screen(screen), format)) {
 647             retval |= usage & PIPE_BIND_BLENDABLE;
 648         }
 649     }
 650
 651     /* Check depth-stencil format support. */
 652     if (usage & PIPE_BIND_DEPTH_STENCIL &&
 653         r300_is_zs_format_supported(format)) {
 654         retval |= PIPE_BIND_DEPTH_STENCIL;
 655     }
 656
 657     /* Check vertex buffer format support. */
 658     if (usage & PIPE_BIND_VERTEX_BUFFER) {
 659         if (r300_screen(screen)->caps.has_tcl) {
 660             /* Half float is supported on >= R400. */
 661             if ((is_r400 || is_r500 || !is_half_float) &&
 662                 r300_translate_vertex_data_type(format) != R300_INVALID_FORMAT) {
 663                 retval |= PIPE_BIND_VERTEX_BUFFER;
 664             }
 665         } else {
 666             /* SW TCL */
 667             if (!util_format_is_pure_integer(format)) {
 668                 retval |= PIPE_BIND_VERTEX_BUFFER;
 669             }
 670         }
 671     }
 672
 673     return retval == usage;
 674 }
 675
 676 static void r300_destroy_screen(struct pipe_screen* pscreen)
 677 {
 678     struct r300_screen* r300screen = r300_screen(pscreen);
 679     struct radeon_winsys *rws = radeon_winsys(pscreen);
 680
 681     if (rws && !rws->unref(rws))
 682       return;
 683
 684     pipe_mutex_destroy(r300screen->cmask_mutex);
 685     slab_destroy_parent(&r300screen->pool_transfers);
 686
 687     if (rws)
 688       rws->destroy(rws);
 689
 690     FREE(r300screen);
 691 }
 692
 693 static void r300_fence_reference(struct pipe_screen *screen,
 694                                  struct pipe_fence_handle **ptr,
 695                                  struct pipe_fence_handle *fence)
 696 {
 697     struct radeon_winsys *rws = r300_screen(screen)->rws;
 698
 699     rws->fence_reference(ptr, fence);
 700 }
 701
 702 static boolean r300_fence_finish(struct pipe_screen *screen,
 703                                  struct pipe_context *ctx,
 704                                  struct pipe_fence_handle *fence,
 705                                  uint64_t timeout)
 706 {
 707     struct radeon_winsys *rws = r300_screen(screen)->rws;
 708
 709     return rws->fence_wait(rws, fence, timeout);
 710 }
 711
 712 struct pipe_screen* r300_screen_create(struct radeon_winsys *rws)
 713 {
 714     struct r300_screen *r300screen = CALLOC_STRUCT(r300_screen);
 715
 716     if (!r300screen) {
 717         FREE(r300screen);
 718         return NULL;
 719     }
 720
 721     rws->query_info(rws, &r300screen->info);
 722
 723     r300_init_debug(r300screen);
 724     r300_parse_chipset(r300screen->info.pci_id, &r300screen->caps);
 725
 726     if (SCREEN_DBG_ON(r300screen, DBG_NO_ZMASK))
 727         r300screen->caps.zmask_ram = 0;
 728     if (SCREEN_DBG_ON(r300screen, DBG_NO_HIZ))
 729         r300screen->caps.hiz_ram = 0;
 730
 731     r300screen->rws = rws;
 732     r300screen->screen.destroy = r300_destroy_screen;
 733     r300screen->screen.get_name = r300_get_name;
 734     r300screen->screen.get_vendor = r300_get_vendor;
 735     r300screen->screen.get_device_vendor = r300_get_device_vendor;
 736     r300screen->screen.get_param = r300_get_param;
 737     r300screen->screen.get_shader_param = r300_get_shader_param;
 738     r300screen->screen.get_paramf = r300_get_paramf;
 739     r300screen->screen.get_video_param = r300_get_video_param;
 740     r300screen->screen.is_format_supported = r300_is_format_supported;
 741     r300screen->screen.is_video_format_supported = vl_video_buffer_is_format_supported;
 742     r300screen->screen.context_create = r300_create_context;
 743     r300screen->screen.fence_reference = r300_fence_reference;
 744     r300screen->screen.fence_finish = r300_fence_finish;
 745
 746     r300_init_screen_resource_functions(r300screen);
 747
 748     slab_create_parent(&r300screen->pool_transfers, sizeof(struct pipe_transfer), 64);
 749
 750     util_format_s3tc_init();
 751     pipe_mutex_init(r300screen->cmask_mutex);
 752
 753     return &r300screen->screen;
 754 }