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         case PIPE_CAP_BUFFER_MAP_PERSISTENT_COHERENT:
 110             return 1;
 111
 112         case PIPE_CAP_MIN_MAP_BUFFER_ALIGNMENT:
 113             return R300_BUFFER_ALIGNMENT;
 114
 115         case PIPE_CAP_CONSTANT_BUFFER_OFFSET_ALIGNMENT:
 116             return 16;
 117
 118         case PIPE_CAP_GLSL_FEATURE_LEVEL:
 119             return 120;
 120
 121         /* r300 cannot do swizzling of compressed textures. Supported otherwise. */
 122         case PIPE_CAP_TEXTURE_SWIZZLE:
 123             return util_format_s3tc_enabled ? r300screen->caps.dxtc_swizzle : 1;
 124
 125         /* We don't support color clamping on r500, so that we can use color
 126          * intepolators for generic varyings. */
 127         case PIPE_CAP_VERTEX_COLOR_CLAMPED:
 128             return !is_r500;
 129
 130         /* Supported on r500 only. */
 131         case PIPE_CAP_VERTEX_COLOR_UNCLAMPED:
 132         case PIPE_CAP_MIXED_COLORBUFFER_FORMATS:
 133         case PIPE_CAP_SM3:
 134             return is_r500 ? 1 : 0;
 135
 136         /* Unsupported features. */
 137         case PIPE_CAP_QUERY_TIME_ELAPSED:
 138         case PIPE_CAP_QUERY_PIPELINE_STATISTICS:
 139         case PIPE_CAP_MAX_DUAL_SOURCE_RENDER_TARGETS:
 140         case PIPE_CAP_INDEP_BLEND_ENABLE:
 141         case PIPE_CAP_INDEP_BLEND_FUNC:
 142         case PIPE_CAP_DEPTH_CLIP_DISABLE:
 143         case PIPE_CAP_SHADER_STENCIL_EXPORT:
 144         case PIPE_CAP_MAX_TEXTURE_ARRAY_LAYERS:
 145         case PIPE_CAP_TGSI_INSTANCEID:
 146         case PIPE_CAP_TGSI_FS_COORD_ORIGIN_LOWER_LEFT:
 147         case PIPE_CAP_TGSI_FS_COORD_PIXEL_CENTER_INTEGER:
 148         case PIPE_CAP_SEAMLESS_CUBE_MAP:
 149         case PIPE_CAP_SEAMLESS_CUBE_MAP_PER_TEXTURE:
 150         case PIPE_CAP_MIN_TEXEL_OFFSET:
 151         case PIPE_CAP_MAX_TEXEL_OFFSET:
 152         case PIPE_CAP_MIN_TEXTURE_GATHER_OFFSET:
 153         case PIPE_CAP_MAX_TEXTURE_GATHER_OFFSET:
 154         case PIPE_CAP_MAX_STREAM_OUTPUT_BUFFERS:
 155         case PIPE_CAP_MAX_STREAM_OUTPUT_SEPARATE_COMPONENTS:
 156         case PIPE_CAP_MAX_STREAM_OUTPUT_INTERLEAVED_COMPONENTS:
 157         case PIPE_CAP_MAX_GEOMETRY_OUTPUT_VERTICES:
 158         case PIPE_CAP_MAX_GEOMETRY_TOTAL_OUTPUT_COMPONENTS:
 159         case PIPE_CAP_MAX_VERTEX_STREAMS:
 160         case PIPE_CAP_STREAM_OUTPUT_PAUSE_RESUME:
 161         case PIPE_CAP_FRAGMENT_COLOR_CLAMPED:
 162         case PIPE_CAP_QUADS_FOLLOW_PROVOKING_VERTEX_CONVENTION:
 163         case PIPE_CAP_COMPUTE:
 164         case PIPE_CAP_START_INSTANCE:
 165         case PIPE_CAP_QUERY_TIMESTAMP:
 166         case PIPE_CAP_TEXTURE_MULTISAMPLE:
 167         case PIPE_CAP_CUBE_MAP_ARRAY:
 168         case PIPE_CAP_TEXTURE_BUFFER_OBJECTS:
 169         case PIPE_CAP_TEXTURE_BUFFER_OFFSET_ALIGNMENT:
 170         case PIPE_CAP_TEXTURE_BORDER_COLOR_QUIRK:
 171         case PIPE_CAP_MAX_TEXTURE_BUFFER_SIZE:
 172         case PIPE_CAP_TGSI_VS_LAYER:
 173         case PIPE_CAP_MAX_TEXTURE_GATHER_COMPONENTS:
 174         case PIPE_CAP_TEXTURE_GATHER_SM5:
 175         case PIPE_CAP_TEXTURE_QUERY_LOD:
 176         case PIPE_CAP_FAKE_SW_MSAA:
 177         case PIPE_CAP_SAMPLE_SHADING:
 178         case PIPE_CAP_TEXTURE_GATHER_OFFSETS:
 179         case PIPE_CAP_TGSI_VS_WINDOW_SPACE_POSITION:
 180             return 0;
 181
 182         /* SWTCL-only features. */
 183         case PIPE_CAP_PRIMITIVE_RESTART:
 184         case PIPE_CAP_USER_VERTEX_BUFFERS:
 185             return !r300screen->caps.has_tcl;
 186
 187         /* HWTCL-only features / limitations. */
 188         case PIPE_CAP_VERTEX_BUFFER_OFFSET_4BYTE_ALIGNED_ONLY:
 189         case PIPE_CAP_VERTEX_BUFFER_STRIDE_4BYTE_ALIGNED_ONLY:
 190         case PIPE_CAP_VERTEX_ELEMENT_SRC_OFFSET_4BYTE_ALIGNED_ONLY:
 191             return r300screen->caps.has_tcl;
 192         case PIPE_CAP_TGSI_TEXCOORD:
 193             return 0;
 194
 195         /* Texturing. */
 196         case PIPE_CAP_MAX_TEXTURE_2D_LEVELS:
 197         case PIPE_CAP_MAX_TEXTURE_3D_LEVELS:
 198         case PIPE_CAP_MAX_TEXTURE_CUBE_LEVELS:
 199             /* 13 == 4096, 12 == 2048 */
 200             return is_r500 ? 13 : 12;
 201
 202         /* Render targets. */
 203         case PIPE_CAP_MAX_RENDER_TARGETS:
 204             return 4;
 205         case PIPE_CAP_ENDIANNESS:
 206             return PIPE_ENDIAN_LITTLE;
 207
 208         case PIPE_CAP_MAX_VIEWPORTS:
 209             return 1;
 210     }
 211     return 0;
 212 }
 213
 214 static int r300_get_shader_param(struct pipe_screen *pscreen, unsigned shader, enum pipe_shader_cap param)
 215 {
 216    struct r300_screen* r300screen = r300_screen(pscreen);
 217    boolean is_r400 = r300screen->caps.is_r400;
 218    boolean is_r500 = r300screen->caps.is_r500;
 219
 220    switch (shader) {
 221     case PIPE_SHADER_FRAGMENT:
 222         switch (param)
 223         {
 224         case PIPE_SHADER_CAP_MAX_INSTRUCTIONS:
 225             return is_r500 || is_r400 ? 512 : 96;
 226         case PIPE_SHADER_CAP_MAX_ALU_INSTRUCTIONS:
 227             return is_r500 || is_r400 ? 512 : 64;
 228         case PIPE_SHADER_CAP_MAX_TEX_INSTRUCTIONS:
 229             return is_r500 || is_r400 ? 512 : 32;
 230         case PIPE_SHADER_CAP_MAX_TEX_INDIRECTIONS:
 231             return is_r500 ? 511 : 4;
 232         case PIPE_SHADER_CAP_MAX_CONTROL_FLOW_DEPTH:
 233             return is_r500 ? 64 : 0; /* Actually unlimited on r500. */
 234             /* Fragment shader limits. */
 235         case PIPE_SHADER_CAP_MAX_INPUTS:
 236             /* 2 colors + 8 texcoords are always supported
 237              * (minus fog and wpos).
 238              *
 239              * R500 has the ability to turn 3rd and 4th color into
 240              * additional texcoords but there is no two-sided color
 241              * selection then. However the facing bit can be used instead. */
 242             return 10;
 243         case PIPE_SHADER_CAP_MAX_CONSTS:
 244             return is_r500 ? 256 : 32;
 245         case PIPE_SHADER_CAP_MAX_CONST_BUFFERS:
 246             return 1;
 247         case PIPE_SHADER_CAP_MAX_TEMPS:
 248             return is_r500 ? 128 : is_r400 ? 64 : 32;
 249         case PIPE_SHADER_CAP_MAX_PREDS:
 250             return is_r500 ? 1 : 0;
 251         case PIPE_SHADER_CAP_MAX_TEXTURE_SAMPLERS:
 252         case PIPE_SHADER_CAP_MAX_SAMPLER_VIEWS:
 253            return r300screen->caps.num_tex_units;
 254         case PIPE_SHADER_CAP_MAX_ADDRS:
 255         case PIPE_SHADER_CAP_TGSI_CONT_SUPPORTED:
 256         case PIPE_SHADER_CAP_TGSI_SQRT_SUPPORTED:
 257         case PIPE_SHADER_CAP_INDIRECT_INPUT_ADDR:
 258         case PIPE_SHADER_CAP_INDIRECT_OUTPUT_ADDR:
 259         case PIPE_SHADER_CAP_INDIRECT_TEMP_ADDR:
 260         case PIPE_SHADER_CAP_INDIRECT_CONST_ADDR:
 261         case PIPE_SHADER_CAP_SUBROUTINES:
 262         case PIPE_SHADER_CAP_INTEGERS:
 263             return 0;
 264         case PIPE_SHADER_CAP_PREFERRED_IR:
 265             return PIPE_SHADER_IR_TGSI;
 266         }
 267         break;
 268     case PIPE_SHADER_VERTEX:
 269         switch (param)
 270         {
 271         case PIPE_SHADER_CAP_MAX_TEXTURE_SAMPLERS:
 272         case PIPE_SHADER_CAP_MAX_SAMPLER_VIEWS:
 273         case PIPE_SHADER_CAP_SUBROUTINES:
 274             return 0;
 275         default:;
 276         }
 277
 278         if (!r300screen->caps.has_tcl) {
 279             return draw_get_shader_param(shader, param);
 280         }
 281
 282         switch (param)
 283         {
 284         case PIPE_SHADER_CAP_MAX_INSTRUCTIONS:
 285         case PIPE_SHADER_CAP_MAX_ALU_INSTRUCTIONS:
 286             return is_r500 ? 1024 : 256;
 287         case PIPE_SHADER_CAP_MAX_CONTROL_FLOW_DEPTH:
 288             return is_r500 ? 4 : 0; /* For loops; not sure about conditionals. */
 289         case PIPE_SHADER_CAP_MAX_INPUTS:
 290             return 16;
 291         case PIPE_SHADER_CAP_MAX_CONSTS:
 292             return 256;
 293         case PIPE_SHADER_CAP_MAX_CONST_BUFFERS:
 294             return 1;
 295         case PIPE_SHADER_CAP_MAX_TEMPS:
 296             return 32;
 297         case PIPE_SHADER_CAP_MAX_ADDRS:
 298             return 1; /* XXX guessed */
 299         case PIPE_SHADER_CAP_MAX_PREDS:
 300             return is_r500 ? 4 : 0; /* XXX guessed. */
 301         case PIPE_SHADER_CAP_INDIRECT_CONST_ADDR:
 302             return 1;
 303         case PIPE_SHADER_CAP_MAX_TEX_INSTRUCTIONS:
 304         case PIPE_SHADER_CAP_MAX_TEX_INDIRECTIONS:
 305         case PIPE_SHADER_CAP_TGSI_CONT_SUPPORTED:
 306         case PIPE_SHADER_CAP_TGSI_SQRT_SUPPORTED:
 307         case PIPE_SHADER_CAP_INDIRECT_INPUT_ADDR:
 308         case PIPE_SHADER_CAP_INDIRECT_OUTPUT_ADDR:
 309         case PIPE_SHADER_CAP_INDIRECT_TEMP_ADDR:
 310         case PIPE_SHADER_CAP_SUBROUTINES:
 311         case PIPE_SHADER_CAP_INTEGERS:
 312         case PIPE_SHADER_CAP_MAX_TEXTURE_SAMPLERS:
 313         case PIPE_SHADER_CAP_MAX_SAMPLER_VIEWS:
 314             return 0;
 315         case PIPE_SHADER_CAP_PREFERRED_IR:
 316             return PIPE_SHADER_IR_TGSI;
 317         }
 318         break;
 319     }
 320     return 0;
 321 }
 322
 323 static float r300_get_paramf(struct pipe_screen* pscreen,
 324                              enum pipe_capf param)
 325 {
 326     struct r300_screen* r300screen = r300_screen(pscreen);
 327
 328     switch (param) {
 329         case PIPE_CAPF_MAX_LINE_WIDTH:
 330         case PIPE_CAPF_MAX_LINE_WIDTH_AA:
 331         case PIPE_CAPF_MAX_POINT_WIDTH:
 332         case PIPE_CAPF_MAX_POINT_WIDTH_AA:
 333             /* The maximum dimensions of the colorbuffer are our practical
 334              * rendering limits. 2048 pixels should be enough for anybody. */
 335             if (r300screen->caps.is_r500) {
 336                 return 4096.0f;
 337             } else if (r300screen->caps.is_r400) {
 338                 return 4021.0f;
 339             } else {
 340                 return 2560.0f;
 341             }
 342         case PIPE_CAPF_MAX_TEXTURE_ANISOTROPY:
 343             return 16.0f;
 344         case PIPE_CAPF_MAX_TEXTURE_LOD_BIAS:
 345             return 16.0f;
 346         case PIPE_CAPF_GUARD_BAND_LEFT:
 347         case PIPE_CAPF_GUARD_BAND_TOP:
 348         case PIPE_CAPF_GUARD_BAND_RIGHT:
 349         case PIPE_CAPF_GUARD_BAND_BOTTOM:
 350             /* XXX I don't know what these should be but the least we can do is
 351              * silence the potential error message */
 352             return 0.0f;
 353         default:
 354             debug_printf("r300: Warning: Unknown CAP %d in get_paramf.\n",
 355                          param);
 356             return 0.0f;
 357     }
 358 }
 359
 360 static int r300_get_video_param(struct pipe_screen *screen,
 361                                 enum pipe_video_profile profile,
 362                                 enum pipe_video_entrypoint entrypoint,
 363                                 enum pipe_video_cap param)
 364 {
 365    switch (param) {
 366       case PIPE_VIDEO_CAP_SUPPORTED:
 367          return vl_profile_supported(screen, profile, entrypoint);
 368       case PIPE_VIDEO_CAP_NPOT_TEXTURES:
 369          return 0;
 370       case PIPE_VIDEO_CAP_MAX_WIDTH:
 371       case PIPE_VIDEO_CAP_MAX_HEIGHT:
 372          return vl_video_buffer_max_size(screen);
 373       case PIPE_VIDEO_CAP_PREFERED_FORMAT:
 374          return PIPE_FORMAT_NV12;
 375       case PIPE_VIDEO_CAP_PREFERS_INTERLACED:
 376          return false;
 377       case PIPE_VIDEO_CAP_SUPPORTS_INTERLACED:
 378          return false;
 379       case PIPE_VIDEO_CAP_SUPPORTS_PROGRESSIVE:
 380          return true;
 381       case PIPE_VIDEO_CAP_MAX_LEVEL:
 382          return vl_level_supported(screen, profile);
 383       default:
 384          return 0;
 385    }
 386 }
 387
 388 /**
 389  * Whether the format matches:
 390  *   PIPE_FORMAT_?10?10?10?2_UNORM
 391  */
 392 static INLINE boolean
 393 util_format_is_rgba1010102_variant(const struct util_format_description *desc)
 394 {
 395    static const unsigned size[4] = {10, 10, 10, 2};
 396    unsigned chan;
 397
 398    if (desc->block.width != 1 ||
 399        desc->block.height != 1 ||
 400        desc->block.bits != 32)
 401       return FALSE;
 402
 403    for (chan = 0; chan < 4; ++chan) {
 404       if(desc->channel[chan].type != UTIL_FORMAT_TYPE_UNSIGNED &&
 405          desc->channel[chan].type != UTIL_FORMAT_TYPE_VOID)
 406          return FALSE;
 407       if (desc->channel[chan].size != size[chan])
 408          return FALSE;
 409    }
 410
 411    return TRUE;
 412 }
 413
 414 static boolean r300_is_format_supported(struct pipe_screen* screen,
 415                                         enum pipe_format format,
 416                                         enum pipe_texture_target target,
 417                                         unsigned sample_count,
 418                                         unsigned usage)
 419 {
 420     uint32_t retval = 0;
 421     boolean drm_2_8_0 = r300_screen(screen)->info.drm_minor >= 8;
 422     boolean is_r500 = r300_screen(screen)->caps.is_r500;
 423     boolean is_r400 = r300_screen(screen)->caps.is_r400;
 424     boolean is_color2101010 = format == PIPE_FORMAT_R10G10B10A2_UNORM ||
 425                               format == PIPE_FORMAT_R10G10B10X2_SNORM ||
 426                               format == PIPE_FORMAT_B10G10R10A2_UNORM ||
 427                               format == PIPE_FORMAT_B10G10R10X2_UNORM ||
 428                               format == PIPE_FORMAT_R10SG10SB10SA2U_NORM;
 429     boolean is_ati1n = format == PIPE_FORMAT_RGTC1_UNORM ||
 430                        format == PIPE_FORMAT_RGTC1_SNORM ||
 431                        format == PIPE_FORMAT_LATC1_UNORM ||
 432                        format == PIPE_FORMAT_LATC1_SNORM;
 433     boolean is_ati2n = format == PIPE_FORMAT_RGTC2_UNORM ||
 434                        format == PIPE_FORMAT_RGTC2_SNORM ||
 435                        format == PIPE_FORMAT_LATC2_UNORM ||
 436                        format == PIPE_FORMAT_LATC2_SNORM;
 437     boolean is_x16f_xy16f = format == PIPE_FORMAT_R16_FLOAT ||
 438                             format == PIPE_FORMAT_R16G16_FLOAT ||
 439                             format == PIPE_FORMAT_A16_FLOAT ||
 440                             format == PIPE_FORMAT_L16_FLOAT ||
 441                             format == PIPE_FORMAT_L16A16_FLOAT ||
 442                             format == PIPE_FORMAT_R16A16_FLOAT ||
 443                             format == PIPE_FORMAT_I16_FLOAT;
 444     boolean is_half_float = format == PIPE_FORMAT_R16_FLOAT ||
 445                             format == PIPE_FORMAT_R16G16_FLOAT ||
 446                             format == PIPE_FORMAT_R16G16B16_FLOAT ||
 447                             format == PIPE_FORMAT_R16G16B16A16_FLOAT ||
 448                             format == PIPE_FORMAT_R16G16B16X16_FLOAT;
 449     const struct util_format_description *desc;
 450
 451     if (!util_format_is_supported(format, usage))
 452        return FALSE;
 453
 454     /* Check multisampling support. */
 455     switch (sample_count) {
 456         case 0:
 457         case 1:
 458             break;
 459         case 2:
 460         case 4:
 461         case 6:
 462             /* We need DRM 2.8.0. */
 463             if (!drm_2_8_0) {
 464                 return FALSE;
 465             }
 466             /* No texturing and scanout. */
 467             if (usage & (PIPE_BIND_SAMPLER_VIEW |
 468                          PIPE_BIND_DISPLAY_TARGET |
 469                          PIPE_BIND_SCANOUT)) {
 470                 return FALSE;
 471             }
 472
 473             desc = util_format_description(format);
 474
 475             if (is_r500) {
 476                 /* Only allow depth/stencil, RGBA8, RGBA1010102, RGBA16F. */
 477                 if (!util_format_is_depth_or_stencil(format) &&
 478                     !util_format_is_rgba8_variant(desc) &&
 479                     !util_format_is_rgba1010102_variant(desc) &&
 480                     format != PIPE_FORMAT_R16G16B16A16_FLOAT &&
 481                     format != PIPE_FORMAT_R16G16B16X16_FLOAT) {
 482                     return FALSE;
 483                 }
 484             } else {
 485                 /* Only allow depth/stencil, RGBA8. */
 486                 if (!util_format_is_depth_or_stencil(format) &&
 487                     !util_format_is_rgba8_variant(desc)) {
 488                     return FALSE;
 489                 }
 490             }
 491             break;
 492         default:
 493             return FALSE;
 494     }
 495
 496     /* Check sampler format support. */
 497     if ((usage & PIPE_BIND_SAMPLER_VIEW) &&
 498         /* these two are broken for an unknown reason */
 499         format != PIPE_FORMAT_R8G8B8X8_SNORM &&
 500         format != PIPE_FORMAT_R16G16B16X16_SNORM &&
 501         /* ATI1N is r5xx-only. */
 502         (is_r500 || !is_ati1n) &&
 503         /* ATI2N is supported on r4xx-r5xx. */
 504         (is_r400 || is_r500 || !is_ati2n) &&
 505         /* R16F and RG16F texture support was added in as late as DRM 2.8.0 */
 506         (drm_2_8_0 || !is_x16f_xy16f) &&
 507         r300_is_sampler_format_supported(format)) {
 508         retval |= PIPE_BIND_SAMPLER_VIEW;
 509     }
 510
 511     /* Check colorbuffer format support. */
 512     if ((usage & (PIPE_BIND_RENDER_TARGET |
 513                   PIPE_BIND_DISPLAY_TARGET |
 514                   PIPE_BIND_SCANOUT |
 515                   PIPE_BIND_SHARED)) &&
 516         /* 2101010 cannot be rendered to on non-r5xx. */
 517         (!is_color2101010 || (is_r500 && drm_2_8_0)) &&
 518         r300_is_colorbuffer_format_supported(format)) {
 519         retval |= usage &
 520             (PIPE_BIND_RENDER_TARGET |
 521              PIPE_BIND_DISPLAY_TARGET |
 522              PIPE_BIND_SCANOUT |
 523              PIPE_BIND_SHARED);
 524     }
 525
 526     /* Check depth-stencil format support. */
 527     if (usage & PIPE_BIND_DEPTH_STENCIL &&
 528         r300_is_zs_format_supported(format)) {
 529         retval |= PIPE_BIND_DEPTH_STENCIL;
 530     }
 531
 532     /* Check vertex buffer format support. */
 533     if (usage & PIPE_BIND_VERTEX_BUFFER) {
 534         if (r300_screen(screen)->caps.has_tcl) {
 535             /* Half float is supported on >= R400. */
 536             if ((is_r400 || is_r500 || !is_half_float) &&
 537                 r300_translate_vertex_data_type(format) != R300_INVALID_FORMAT) {
 538                 retval |= PIPE_BIND_VERTEX_BUFFER;
 539             }
 540         } else {
 541             /* SW TCL */
 542             if (!util_format_is_pure_integer(format)) {
 543                 retval |= PIPE_BIND_VERTEX_BUFFER;
 544             }
 545         }
 546     }
 547
 548     /* Transfers are always supported. */
 549     if (usage & PIPE_BIND_TRANSFER_READ)
 550         retval |= PIPE_BIND_TRANSFER_READ;
 551     if (usage & PIPE_BIND_TRANSFER_WRITE)
 552         retval |= PIPE_BIND_TRANSFER_WRITE;
 553
 554     return retval == usage;
 555 }
 556
 557 static void r300_destroy_screen(struct pipe_screen* pscreen)
 558 {
 559     struct r300_screen* r300screen = r300_screen(pscreen);
 560     struct radeon_winsys *rws = radeon_winsys(pscreen);
 561
 562     if (rws && !rws->unref(rws))
 563       return;
 564
 565     pipe_mutex_destroy(r300screen->cmask_mutex);
 566
 567     if (rws)
 568       rws->destroy(rws);
 569
 570     FREE(r300screen);
 571 }
 572
 573 static void r300_fence_reference(struct pipe_screen *screen,
 574                                  struct pipe_fence_handle **ptr,
 575                                  struct pipe_fence_handle *fence)
 576 {
 577     struct radeon_winsys *rws = r300_screen(screen)->rws;
 578
 579     rws->fence_reference(ptr, fence);
 580 }
 581
 582 static boolean r300_fence_signalled(struct pipe_screen *screen,
 583                                     struct pipe_fence_handle *fence)
 584 {
 585     struct radeon_winsys *rws = r300_screen(screen)->rws;
 586
 587     return rws->fence_wait(rws, fence, 0);
 588 }
 589
 590 static boolean r300_fence_finish(struct pipe_screen *screen,
 591                                  struct pipe_fence_handle *fence,
 592                                  uint64_t timeout)
 593 {
 594     struct radeon_winsys *rws = r300_screen(screen)->rws;
 595
 596     return rws->fence_wait(rws, fence, timeout);
 597 }
 598
 599 struct pipe_screen* r300_screen_create(struct radeon_winsys *rws)
 600 {
 601     struct r300_screen *r300screen = CALLOC_STRUCT(r300_screen);
 602
 603     if (!r300screen) {
 604         FREE(r300screen);
 605         return NULL;
 606     }
 607
 608     rws->query_info(rws, &r300screen->info);
 609
 610     r300_init_debug(r300screen);
 611     r300_parse_chipset(r300screen->info.pci_id, &r300screen->caps);
 612
 613     if (SCREEN_DBG_ON(r300screen, DBG_NO_ZMASK))
 614         r300screen->caps.zmask_ram = 0;
 615     if (SCREEN_DBG_ON(r300screen, DBG_NO_HIZ))
 616         r300screen->caps.hiz_ram = 0;
 617
 618     if (r300screen->info.drm_minor < 8)
 619         r300screen->caps.has_us_format = FALSE;
 620
 621     r300screen->rws = rws;
 622     r300screen->screen.destroy = r300_destroy_screen;
 623     r300screen->screen.get_name = r300_get_name;
 624     r300screen->screen.get_vendor = r300_get_vendor;
 625     r300screen->screen.get_param = r300_get_param;
 626     r300screen->screen.get_shader_param = r300_get_shader_param;
 627     r300screen->screen.get_paramf = r300_get_paramf;
 628     r300screen->screen.get_video_param = r300_get_video_param;
 629     r300screen->screen.is_format_supported = r300_is_format_supported;
 630     r300screen->screen.is_video_format_supported = vl_video_buffer_is_format_supported;
 631     r300screen->screen.context_create = r300_create_context;
 632     r300screen->screen.fence_reference = r300_fence_reference;
 633     r300screen->screen.fence_signalled = r300_fence_signalled;
 634     r300screen->screen.fence_finish = r300_fence_finish;
 635
 636     r300_init_screen_resource_functions(r300screen);
 637
 638     util_format_s3tc_init();
 639     pipe_mutex_init(r300screen->cmask_mutex);
 640
 641     return &r300screen->screen;
 642 }