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