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* chip_families[] = {
  51     "unknown",
  52     "ATI R300",
  53     "ATI R350",
  54     "ATI RV350",
  55     "ATI RV370",
  56     "ATI RV380",
  57     "ATI RS400",
  58     "ATI RC410",
  59     "ATI RS480",
  60     "ATI R420",
  61     "ATI R423",
  62     "ATI R430",
  63     "ATI R480",
  64     "ATI R481",
  65     "ATI RV410",
  66     "ATI RS600",
  67     "ATI RS690",
  68     "ATI RS740",
  69     "ATI RV515",
  70     "ATI R520",
  71     "ATI RV530",
  72     "ATI R580",
  73     "ATI RV560",
  74     "ATI RV570"
  75 };
  76
  77 static const char* r300_get_name(struct pipe_screen* pscreen)
  78 {
  79     struct r300_screen* r300screen = r300_screen(pscreen);
  80
  81     return chip_families[r300screen->caps.family];
  82 }
  83
  84 static int r300_get_param(struct pipe_screen* pscreen, enum pipe_cap param)
  85 {
  86     struct r300_screen* r300screen = r300_screen(pscreen);
  87     boolean is_r500 = r300screen->caps.is_r500;
  88
  89     switch (param) {
  90         /* Supported features (boolean caps). */
  91         case PIPE_CAP_NPOT_TEXTURES:
  92         case PIPE_CAP_MIXED_FRAMEBUFFER_SIZES:
  93         case PIPE_CAP_TWO_SIDED_STENCIL:
  94         case PIPE_CAP_ANISOTROPIC_FILTER:
  95         case PIPE_CAP_POINT_SPRITE:
  96         case PIPE_CAP_OCCLUSION_QUERY:
  97         case PIPE_CAP_TEXTURE_SHADOW_MAP:
  98         case PIPE_CAP_TEXTURE_MIRROR_CLAMP:
  99         case PIPE_CAP_BLEND_EQUATION_SEPARATE:
 100         case PIPE_CAP_VERTEX_ELEMENT_INSTANCE_DIVISOR:
 101         case PIPE_CAP_TGSI_FS_COORD_ORIGIN_UPPER_LEFT:
 102         case PIPE_CAP_TGSI_FS_COORD_PIXEL_CENTER_HALF_INTEGER:
 103         case PIPE_CAP_CONDITIONAL_RENDER:
 104         case PIPE_CAP_TEXTURE_BARRIER:
 105         case PIPE_CAP_TGSI_CAN_COMPACT_CONSTANTS:
 106         case PIPE_CAP_USER_INDEX_BUFFERS:
 107         case PIPE_CAP_USER_CONSTANT_BUFFERS:
 108         case PIPE_CAP_PREFER_BLIT_BASED_TEXTURE_TRANSFER:
 109             return 1;
 110
 111         case PIPE_CAP_MIN_MAP_BUFFER_ALIGNMENT:
 112             return R300_BUFFER_ALIGNMENT;
 113
 114         case PIPE_CAP_CONSTANT_BUFFER_OFFSET_ALIGNMENT:
 115             return 16;
 116
 117         case PIPE_CAP_GLSL_FEATURE_LEVEL:
 118             return 120;
 119
 120         /* r300 cannot do swizzling of compressed textures. Supported otherwise. */
 121         case PIPE_CAP_TEXTURE_SWIZZLE:
 122             return util_format_s3tc_enabled ? r300screen->caps.dxtc_swizzle : 1;
 123
 124         /* We don't support color clamping on r500, so that we can use color
 125          * intepolators for generic varyings. */
 126         case PIPE_CAP_VERTEX_COLOR_CLAMPED:
 127             return !is_r500;
 128
 129         /* Supported on r500 only. */
 130         case PIPE_CAP_VERTEX_COLOR_UNCLAMPED:
 131         case PIPE_CAP_MIXED_COLORBUFFER_FORMATS:
 132         case PIPE_CAP_SM3:
 133             return is_r500 ? 1 : 0;
 134
 135         /* Unsupported features. */
 136         case PIPE_CAP_QUERY_TIME_ELAPSED:
 137         case PIPE_CAP_QUERY_PIPELINE_STATISTICS:
 138         case PIPE_CAP_MAX_DUAL_SOURCE_RENDER_TARGETS:
 139         case PIPE_CAP_INDEP_BLEND_ENABLE:
 140         case PIPE_CAP_INDEP_BLEND_FUNC:
 141         case PIPE_CAP_DEPTH_CLIP_DISABLE:
 142         case PIPE_CAP_SHADER_STENCIL_EXPORT:
 143         case PIPE_CAP_MAX_TEXTURE_ARRAY_LAYERS:
 144         case PIPE_CAP_TGSI_INSTANCEID:
 145         case PIPE_CAP_TGSI_FS_COORD_ORIGIN_LOWER_LEFT:
 146         case PIPE_CAP_TGSI_FS_COORD_PIXEL_CENTER_INTEGER:
 147         case PIPE_CAP_SEAMLESS_CUBE_MAP:
 148         case PIPE_CAP_SEAMLESS_CUBE_MAP_PER_TEXTURE:
 149         case PIPE_CAP_SCALED_RESOLVE:
 150         case PIPE_CAP_MIN_TEXEL_OFFSET:
 151         case PIPE_CAP_MAX_TEXEL_OFFSET:
 152         case PIPE_CAP_MAX_STREAM_OUTPUT_BUFFERS:
 153         case PIPE_CAP_MAX_STREAM_OUTPUT_SEPARATE_COMPONENTS:
 154         case PIPE_CAP_MAX_STREAM_OUTPUT_INTERLEAVED_COMPONENTS:
 155         case PIPE_CAP_STREAM_OUTPUT_PAUSE_RESUME:
 156         case PIPE_CAP_FRAGMENT_COLOR_CLAMPED:
 157         case PIPE_CAP_QUADS_FOLLOW_PROVOKING_VERTEX_CONVENTION:
 158         case PIPE_CAP_COMPUTE:
 159         case PIPE_CAP_START_INSTANCE:
 160         case PIPE_CAP_QUERY_TIMESTAMP:
 161         case PIPE_CAP_TEXTURE_MULTISAMPLE:
 162         case PIPE_CAP_CUBE_MAP_ARRAY:
 163         case PIPE_CAP_TEXTURE_BUFFER_OBJECTS:
 164         case PIPE_CAP_TEXTURE_BUFFER_OFFSET_ALIGNMENT:
 165         case PIPE_CAP_TEXTURE_BORDER_COLOR_QUIRK:
 166         case PIPE_CAP_MAX_TEXTURE_BUFFER_SIZE:
 167             return 0;
 168
 169         /* SWTCL-only features. */
 170         case PIPE_CAP_PRIMITIVE_RESTART:
 171         case PIPE_CAP_USER_VERTEX_BUFFERS:
 172             return !r300screen->caps.has_tcl;
 173
 174         /* HWTCL-only features / limitations. */
 175         case PIPE_CAP_VERTEX_BUFFER_OFFSET_4BYTE_ALIGNED_ONLY:
 176         case PIPE_CAP_VERTEX_BUFFER_STRIDE_4BYTE_ALIGNED_ONLY:
 177         case PIPE_CAP_VERTEX_ELEMENT_SRC_OFFSET_4BYTE_ALIGNED_ONLY:
 178             return r300screen->caps.has_tcl;
 179         case PIPE_CAP_TGSI_TEXCOORD:
 180             return 0;
 181
 182         /* Texturing. */
 183         case PIPE_CAP_MAX_COMBINED_SAMPLERS:
 184             return r300screen->caps.num_tex_units;
 185         case PIPE_CAP_MAX_TEXTURE_2D_LEVELS:
 186         case PIPE_CAP_MAX_TEXTURE_3D_LEVELS:
 187         case PIPE_CAP_MAX_TEXTURE_CUBE_LEVELS:
 188             /* 13 == 4096, 12 == 2048 */
 189             return is_r500 ? 13 : 12;
 190
 191         /* Render targets. */
 192         case PIPE_CAP_MAX_RENDER_TARGETS:
 193             return 4;
 194         case PIPE_CAP_ENDIANNESS:
 195             return PIPE_ENDIAN_LITTLE;
 196
 197         case PIPE_CAP_MAX_VIEWPORTS:
 198             return 1;
 199     }
 200     return 0;
 201 }
 202
 203 static int r300_get_shader_param(struct pipe_screen *pscreen, unsigned shader, enum pipe_shader_cap param)
 204 {
 205    struct r300_screen* r300screen = r300_screen(pscreen);
 206    boolean is_r400 = r300screen->caps.is_r400;
 207    boolean is_r500 = r300screen->caps.is_r500;
 208
 209    switch (shader) {
 210     case PIPE_SHADER_FRAGMENT:
 211         switch (param)
 212         {
 213         case PIPE_SHADER_CAP_MAX_INSTRUCTIONS:
 214             return is_r500 || is_r400 ? 512 : 96;
 215         case PIPE_SHADER_CAP_MAX_ALU_INSTRUCTIONS:
 216             return is_r500 || is_r400 ? 512 : 64;
 217         case PIPE_SHADER_CAP_MAX_TEX_INSTRUCTIONS:
 218             return is_r500 || is_r400 ? 512 : 32;
 219         case PIPE_SHADER_CAP_MAX_TEX_INDIRECTIONS:
 220             return is_r500 ? 511 : 4;
 221         case PIPE_SHADER_CAP_MAX_CONTROL_FLOW_DEPTH:
 222             return is_r500 ? 64 : 0; /* Actually unlimited on r500. */
 223             /* Fragment shader limits. */
 224         case PIPE_SHADER_CAP_MAX_INPUTS:
 225             /* 2 colors + 8 texcoords are always supported
 226              * (minus fog and wpos).
 227              *
 228              * R500 has the ability to turn 3rd and 4th color into
 229              * additional texcoords but there is no two-sided color
 230              * selection then. However the facing bit can be used instead. */
 231             return 10;
 232         case PIPE_SHADER_CAP_MAX_CONSTS:
 233             return is_r500 ? 256 : 32;
 234         case PIPE_SHADER_CAP_MAX_CONST_BUFFERS:
 235             return 1;
 236         case PIPE_SHADER_CAP_MAX_TEMPS:
 237             return is_r500 ? 128 : is_r400 ? 64 : 32;
 238         case PIPE_SHADER_CAP_MAX_PREDS:
 239             return is_r500 ? 1 : 0;
 240         case PIPE_SHADER_CAP_MAX_TEXTURE_SAMPLERS:
 241         case PIPE_SHADER_CAP_MAX_SAMPLER_VIEWS:
 242            return r300screen->caps.num_tex_units;
 243         case PIPE_SHADER_CAP_MAX_ADDRS:
 244         case PIPE_SHADER_CAP_TGSI_CONT_SUPPORTED:
 245         case PIPE_SHADER_CAP_TGSI_SQRT_SUPPORTED:
 246         case PIPE_SHADER_CAP_INDIRECT_INPUT_ADDR:
 247         case PIPE_SHADER_CAP_INDIRECT_OUTPUT_ADDR:
 248         case PIPE_SHADER_CAP_INDIRECT_TEMP_ADDR:
 249         case PIPE_SHADER_CAP_INDIRECT_CONST_ADDR:
 250         case PIPE_SHADER_CAP_SUBROUTINES:
 251         case PIPE_SHADER_CAP_INTEGERS:
 252             return 0;
 253         case PIPE_SHADER_CAP_PREFERRED_IR:
 254             return PIPE_SHADER_IR_TGSI;
 255         }
 256         break;
 257     case PIPE_SHADER_VERTEX:
 258         switch (param)
 259         {
 260         case PIPE_SHADER_CAP_MAX_TEXTURE_SAMPLERS:
 261         case PIPE_SHADER_CAP_MAX_SAMPLER_VIEWS:
 262         case PIPE_SHADER_CAP_SUBROUTINES:
 263             return 0;
 264         default:;
 265         }
 266
 267         if (!r300screen->caps.has_tcl) {
 268             return draw_get_shader_param(shader, param);
 269         }
 270
 271         switch (param)
 272         {
 273         case PIPE_SHADER_CAP_MAX_INSTRUCTIONS:
 274         case PIPE_SHADER_CAP_MAX_ALU_INSTRUCTIONS:
 275             return is_r500 ? 1024 : 256;
 276         case PIPE_SHADER_CAP_MAX_CONTROL_FLOW_DEPTH:
 277             return is_r500 ? 4 : 0; /* For loops; not sure about conditionals. */
 278         case PIPE_SHADER_CAP_MAX_INPUTS:
 279             return 16;
 280         case PIPE_SHADER_CAP_MAX_CONSTS:
 281             return 256;
 282         case PIPE_SHADER_CAP_MAX_CONST_BUFFERS:
 283             return 1;
 284         case PIPE_SHADER_CAP_MAX_TEMPS:
 285             return 32;
 286         case PIPE_SHADER_CAP_MAX_ADDRS:
 287             return 1; /* XXX guessed */
 288         case PIPE_SHADER_CAP_MAX_PREDS:
 289             return is_r500 ? 4 : 0; /* XXX guessed. */
 290         case PIPE_SHADER_CAP_INDIRECT_CONST_ADDR:
 291             return 1;
 292         case PIPE_SHADER_CAP_MAX_TEX_INSTRUCTIONS:
 293         case PIPE_SHADER_CAP_MAX_TEX_INDIRECTIONS:
 294         case PIPE_SHADER_CAP_TGSI_CONT_SUPPORTED:
 295         case PIPE_SHADER_CAP_TGSI_SQRT_SUPPORTED:
 296         case PIPE_SHADER_CAP_INDIRECT_INPUT_ADDR:
 297         case PIPE_SHADER_CAP_INDIRECT_OUTPUT_ADDR:
 298         case PIPE_SHADER_CAP_INDIRECT_TEMP_ADDR:
 299         case PIPE_SHADER_CAP_SUBROUTINES:
 300         case PIPE_SHADER_CAP_INTEGERS:
 301         case PIPE_SHADER_CAP_MAX_TEXTURE_SAMPLERS:
 302         case PIPE_SHADER_CAP_MAX_SAMPLER_VIEWS:
 303             return 0;
 304         case PIPE_SHADER_CAP_PREFERRED_IR:
 305             return PIPE_SHADER_IR_TGSI;
 306         }
 307         break;
 308     }
 309     return 0;
 310 }
 311
 312 static float r300_get_paramf(struct pipe_screen* pscreen,
 313                              enum pipe_capf param)
 314 {
 315     struct r300_screen* r300screen = r300_screen(pscreen);
 316
 317     switch (param) {
 318         case PIPE_CAPF_MAX_LINE_WIDTH:
 319         case PIPE_CAPF_MAX_LINE_WIDTH_AA:
 320         case PIPE_CAPF_MAX_POINT_WIDTH:
 321         case PIPE_CAPF_MAX_POINT_WIDTH_AA:
 322             /* The maximum dimensions of the colorbuffer are our practical
 323              * rendering limits. 2048 pixels should be enough for anybody. */
 324             if (r300screen->caps.is_r500) {
 325                 return 4096.0f;
 326             } else if (r300screen->caps.is_r400) {
 327                 return 4021.0f;
 328             } else {
 329                 return 2560.0f;
 330             }
 331         case PIPE_CAPF_MAX_TEXTURE_ANISOTROPY:
 332             return 16.0f;
 333         case PIPE_CAPF_MAX_TEXTURE_LOD_BIAS:
 334             return 16.0f;
 335         case PIPE_CAPF_GUARD_BAND_LEFT:
 336         case PIPE_CAPF_GUARD_BAND_TOP:
 337         case PIPE_CAPF_GUARD_BAND_RIGHT:
 338         case PIPE_CAPF_GUARD_BAND_BOTTOM:
 339             /* XXX I don't know what these should be but the least we can do is
 340              * silence the potential error message */
 341             return 0.0f;
 342         default:
 343             debug_printf("r300: Warning: Unknown CAP %d in get_paramf.\n",
 344                          param);
 345             return 0.0f;
 346     }
 347 }
 348
 349 static int r300_get_video_param(struct pipe_screen *screen,
 350                                 enum pipe_video_profile profile,
 351                                 enum pipe_video_entrypoint entrypoint,
 352                                 enum pipe_video_cap param)
 353 {
 354    switch (param) {
 355       case PIPE_VIDEO_CAP_SUPPORTED:
 356          return vl_profile_supported(screen, profile, entrypoint);
 357       case PIPE_VIDEO_CAP_NPOT_TEXTURES:
 358          return 0;
 359       case PIPE_VIDEO_CAP_MAX_WIDTH:
 360       case PIPE_VIDEO_CAP_MAX_HEIGHT:
 361          return vl_video_buffer_max_size(screen);
 362       case PIPE_VIDEO_CAP_PREFERED_FORMAT:
 363          return PIPE_FORMAT_NV12;
 364       case PIPE_VIDEO_CAP_PREFERS_INTERLACED:
 365          return false;
 366       case PIPE_VIDEO_CAP_SUPPORTS_INTERLACED:
 367          return false;
 368       case PIPE_VIDEO_CAP_SUPPORTS_PROGRESSIVE:
 369          return true;
 370       case PIPE_VIDEO_CAP_MAX_LEVEL:
 371          return vl_level_supported(screen, profile);
 372       default:
 373          return 0;
 374    }
 375 }
 376
 377 /**
 378  * Whether the format matches:
 379  *   PIPE_FORMAT_?10?10?10?2_UNORM
 380  */
 381 static INLINE boolean
 382 util_format_is_rgba1010102_variant(const struct util_format_description *desc)
 383 {
 384    static const unsigned size[4] = {10, 10, 10, 2};
 385    unsigned chan;
 386
 387    if (desc->block.width != 1 ||
 388        desc->block.height != 1 ||
 389        desc->block.bits != 32)
 390       return FALSE;
 391
 392    for (chan = 0; chan < 4; ++chan) {
 393       if(desc->channel[chan].type != UTIL_FORMAT_TYPE_UNSIGNED &&
 394          desc->channel[chan].type != UTIL_FORMAT_TYPE_VOID)
 395          return FALSE;
 396       if (desc->channel[chan].size != size[chan])
 397          return FALSE;
 398    }
 399
 400    return TRUE;
 401 }
 402
 403 static boolean r300_is_format_supported(struct pipe_screen* screen,
 404                                         enum pipe_format format,
 405                                         enum pipe_texture_target target,
 406                                         unsigned sample_count,
 407                                         unsigned usage)
 408 {
 409     uint32_t retval = 0;
 410     boolean drm_2_8_0 = r300_screen(screen)->info.drm_minor >= 8;
 411     boolean is_r500 = r300_screen(screen)->caps.is_r500;
 412     boolean is_r400 = r300_screen(screen)->caps.is_r400;
 413     boolean is_color2101010 = format == PIPE_FORMAT_R10G10B10A2_UNORM ||
 414                               format == PIPE_FORMAT_R10G10B10X2_SNORM ||
 415                               format == PIPE_FORMAT_B10G10R10A2_UNORM ||
 416                               format == PIPE_FORMAT_R10SG10SB10SA2U_NORM;
 417     boolean is_ati1n = format == PIPE_FORMAT_RGTC1_UNORM ||
 418                        format == PIPE_FORMAT_RGTC1_SNORM ||
 419                        format == PIPE_FORMAT_LATC1_UNORM ||
 420                        format == PIPE_FORMAT_LATC1_SNORM;
 421     boolean is_ati2n = format == PIPE_FORMAT_RGTC2_UNORM ||
 422                        format == PIPE_FORMAT_RGTC2_SNORM ||
 423                        format == PIPE_FORMAT_LATC2_UNORM ||
 424                        format == PIPE_FORMAT_LATC2_SNORM;
 425     boolean is_x16f_xy16f = format == PIPE_FORMAT_R16_FLOAT ||
 426                             format == PIPE_FORMAT_R16G16_FLOAT ||
 427                             format == PIPE_FORMAT_A16_FLOAT ||
 428                             format == PIPE_FORMAT_L16_FLOAT ||
 429                             format == PIPE_FORMAT_L16A16_FLOAT ||
 430                             format == PIPE_FORMAT_R16A16_FLOAT ||
 431                             format == PIPE_FORMAT_I16_FLOAT;
 432     boolean is_half_float = format == PIPE_FORMAT_R16_FLOAT ||
 433                             format == PIPE_FORMAT_R16G16_FLOAT ||
 434                             format == PIPE_FORMAT_R16G16B16_FLOAT ||
 435                             format == PIPE_FORMAT_R16G16B16A16_FLOAT ||
 436                             format == PIPE_FORMAT_R16G16B16X16_FLOAT;
 437     const struct util_format_description *desc;
 438
 439     if (!util_format_is_supported(format, usage))
 440        return FALSE;
 441
 442     /* Check multisampling support. */
 443     switch (sample_count) {
 444         case 0:
 445         case 1:
 446             break;
 447         case 2:
 448         case 4:
 449         case 6:
 450             /* We need DRM 2.8.0. */
 451             if (!drm_2_8_0) {
 452                 return FALSE;
 453             }
 454             /* No texturing and scanout. */
 455             if (usage & (PIPE_BIND_SAMPLER_VIEW |
 456                          PIPE_BIND_DISPLAY_TARGET |
 457                          PIPE_BIND_SCANOUT)) {
 458                 return FALSE;
 459             }
 460
 461             desc = util_format_description(format);
 462
 463             if (is_r500) {
 464                 /* Only allow depth/stencil, RGBA8, RGBA1010102, RGBA16F. */
 465                 if (!util_format_is_depth_or_stencil(format) &&
 466                     !util_format_is_rgba8_variant(desc) &&
 467                     !util_format_is_rgba1010102_variant(desc) &&
 468                     format != PIPE_FORMAT_R16G16B16A16_FLOAT &&
 469                     format != PIPE_FORMAT_R16G16B16X16_FLOAT) {
 470                     return FALSE;
 471                 }
 472             } else {
 473                 /* Only allow depth/stencil, RGBA8. */
 474                 if (!util_format_is_depth_or_stencil(format) &&
 475                     !util_format_is_rgba8_variant(desc)) {
 476                     return FALSE;
 477                 }
 478             }
 479             break;
 480         default:
 481             return FALSE;
 482     }
 483
 484     /* Check sampler format support. */
 485     if ((usage & PIPE_BIND_SAMPLER_VIEW) &&
 486         /* these two are broken for an unknown reason */
 487         format != PIPE_FORMAT_R8G8B8X8_SNORM &&
 488         format != PIPE_FORMAT_R16G16B16X16_SNORM &&
 489         /* ATI1N is r5xx-only. */
 490         (is_r500 || !is_ati1n) &&
 491         /* ATI2N is supported on r4xx-r5xx. */
 492         (is_r400 || is_r500 || !is_ati2n) &&
 493         /* R16F and RG16F texture support was added in as late as DRM 2.8.0 */
 494         (drm_2_8_0 || !is_x16f_xy16f) &&
 495         r300_is_sampler_format_supported(format)) {
 496         retval |= PIPE_BIND_SAMPLER_VIEW;
 497     }
 498
 499     /* Check colorbuffer format support. */
 500     if ((usage & (PIPE_BIND_RENDER_TARGET |
 501                   PIPE_BIND_DISPLAY_TARGET |
 502                   PIPE_BIND_SCANOUT |
 503                   PIPE_BIND_SHARED)) &&
 504         /* 2101010 cannot be rendered to on non-r5xx. */
 505         (!is_color2101010 || (is_r500 && drm_2_8_0)) &&
 506         r300_is_colorbuffer_format_supported(format)) {
 507         retval |= usage &
 508             (PIPE_BIND_RENDER_TARGET |
 509              PIPE_BIND_DISPLAY_TARGET |
 510              PIPE_BIND_SCANOUT |
 511              PIPE_BIND_SHARED);
 512     }
 513
 514     /* Check depth-stencil format support. */
 515     if (usage & PIPE_BIND_DEPTH_STENCIL &&
 516         r300_is_zs_format_supported(format)) {
 517         retval |= PIPE_BIND_DEPTH_STENCIL;
 518     }
 519
 520     /* Check vertex buffer format support. */
 521     if (usage & PIPE_BIND_VERTEX_BUFFER) {
 522         if (r300_screen(screen)->caps.has_tcl) {
 523             /* Half float is supported on >= R400. */
 524             if ((is_r400 || is_r500 || !is_half_float) &&
 525                 r300_translate_vertex_data_type(format) != R300_INVALID_FORMAT) {
 526                 retval |= PIPE_BIND_VERTEX_BUFFER;
 527             }
 528         } else {
 529             /* SW TCL */
 530             if (!util_format_is_pure_integer(format)) {
 531                 retval |= PIPE_BIND_VERTEX_BUFFER;
 532             }
 533         }
 534     }
 535
 536     /* Transfers are always supported. */
 537     if (usage & PIPE_BIND_TRANSFER_READ)
 538         retval |= PIPE_BIND_TRANSFER_READ;
 539     if (usage & PIPE_BIND_TRANSFER_WRITE)
 540         retval |= PIPE_BIND_TRANSFER_WRITE;
 541
 542     return retval == usage;
 543 }
 544
 545 static void r300_destroy_screen(struct pipe_screen* pscreen)
 546 {
 547     struct r300_screen* r300screen = r300_screen(pscreen);
 548     struct radeon_winsys *rws = radeon_winsys(pscreen);
 549
 550     if (rws && !radeon_winsys_unref(rws))
 551       return;
 552
 553     pipe_mutex_destroy(r300screen->cmask_mutex);
 554
 555     if (rws)
 556       rws->destroy(rws);
 557
 558     FREE(r300screen);
 559 }
 560
 561 static void r300_fence_reference(struct pipe_screen *screen,
 562                                  struct pipe_fence_handle **ptr,
 563                                  struct pipe_fence_handle *fence)
 564 {
 565     struct radeon_winsys *rws = r300_screen(screen)->rws;
 566
 567     rws->fence_reference(ptr, fence);
 568 }
 569
 570 static boolean r300_fence_signalled(struct pipe_screen *screen,
 571                                     struct pipe_fence_handle *fence)
 572 {
 573     struct radeon_winsys *rws = r300_screen(screen)->rws;
 574
 575     return rws->fence_wait(rws, fence, 0);
 576 }
 577
 578 static boolean r300_fence_finish(struct pipe_screen *screen,
 579                                  struct pipe_fence_handle *fence,
 580                                  uint64_t timeout)
 581 {
 582     struct radeon_winsys *rws = r300_screen(screen)->rws;
 583
 584     return rws->fence_wait(rws, fence, timeout);
 585 }
 586
 587 struct pipe_screen* r300_screen_create(struct radeon_winsys *rws)
 588 {
 589     struct r300_screen *r300screen = CALLOC_STRUCT(r300_screen);
 590
 591     if (!r300screen) {
 592         FREE(r300screen);
 593         return NULL;
 594     }
 595
 596     rws->query_info(rws, &r300screen->info);
 597
 598     r300_init_debug(r300screen);
 599     r300_parse_chipset(r300screen->info.pci_id, &r300screen->caps);
 600
 601     if (SCREEN_DBG_ON(r300screen, DBG_NO_ZMASK))
 602         r300screen->caps.zmask_ram = 0;
 603     if (SCREEN_DBG_ON(r300screen, DBG_NO_HIZ))
 604         r300screen->caps.hiz_ram = 0;
 605
 606     if (r300screen->info.drm_minor < 8)
 607         r300screen->caps.has_us_format = FALSE;
 608
 609     r300screen->rws = rws;
 610     r300screen->screen.destroy = r300_destroy_screen;
 611     r300screen->screen.get_name = r300_get_name;
 612     r300screen->screen.get_vendor = r300_get_vendor;
 613     r300screen->screen.get_param = r300_get_param;
 614     r300screen->screen.get_shader_param = r300_get_shader_param;
 615     r300screen->screen.get_paramf = r300_get_paramf;
 616     r300screen->screen.get_video_param = r300_get_video_param;
 617     r300screen->screen.is_format_supported = r300_is_format_supported;
 618     r300screen->screen.is_video_format_supported = vl_video_buffer_is_format_supported;
 619     r300screen->screen.context_create = r300_create_context;
 620     r300screen->screen.fence_reference = r300_fence_reference;
 621     r300screen->screen.fence_signalled = r300_fence_signalled;
 622     r300screen->screen.fence_finish = r300_fence_finish;
 623
 624     r300_init_screen_resource_functions(r300screen);
 625
 626     util_format_s3tc_init();
 627     pipe_mutex_init(r300screen->cmask_mutex);
 628
 629     return &r300screen->screen;
 630 }