src/gallium/drivers/r300/r300_screen.c

   1 /*
   2  * Copyright 2008 Corbin Simpson <MostAwesomeDude@gmail.com>
   3  * Copyright 2010 Marek Olšák <maraeo@gmail.com>
   4  *
   5  * Permission is hereby granted, free of charge, to any person obtaining a
   6  * copy of this software and associated documentation files (the "Software"),
   7  * to deal in the Software without restriction, including without limitation
   8  * on the rights to use, copy, modify, merge, publish, distribute, sub
   9  * license, and/or sell copies of the Software, and to permit persons to whom
  10  * the Software is furnished to do so, subject to the following conditions:
  11  *
  12  * The above copyright notice and this permission notice (including the next
  13  * paragraph) shall be included in all copies or substantial portions of the
  14  * Software.
  15  *
  16  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  17  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  18  * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
  19  * THE AUTHOR(S) AND/OR THEIR SUPPLIERS BE LIABLE FOR ANY CLAIM,
  20  * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
  21  * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
  22  * USE OR OTHER DEALINGS IN THE SOFTWARE. */
  23
  24 #include "util/u_format.h"
  25 #include "util/u_format_s3tc.h"
  26 #include "util/u_memory.h"
  27 #include "os/os_time.h"
  28 #include "vl/vl_decoder.h"
  29 #include "vl/vl_video_buffer.h"
  30
  31 #include "r300_context.h"
  32 #include "r300_texture.h"
  33 #include "r300_screen_buffer.h"
  34 #include "r300_state_inlines.h"
  35 #include "r300_public.h"
  36
  37 #include "draw/draw_context.h"
  38
  39 /* Return the identifier behind whom the brave coders responsible for this
  40  * amalgamation of code, sweat, and duct tape, routinely obscure their names.
  41  *
  42  * ...I should have just put "Corbin Simpson", but I'm not that cool.
  43  *
  44  * (Or egotistical. Yet.) */
  45 static const char* r300_get_vendor(struct pipe_screen* pscreen)
  46 {
  47     return "X.Org R300 Project";
  48 }
  49
  50 static const char* r300_get_device_vendor(struct pipe_screen* pscreen)
  51 {
  52     return "ATI";
  53 }
  54
  55 static const char* chip_families[] = {
  56     "unknown",
  57     "ATI R300",
  58     "ATI R350",
  59     "ATI RV350",
  60     "ATI RV370",
  61     "ATI RV380",
  62     "ATI RS400",
  63     "ATI RC410",
  64     "ATI RS480",
  65     "ATI R420",
  66     "ATI R423",
  67     "ATI R430",
  68     "ATI R480",
  69     "ATI R481",
  70     "ATI RV410",
  71     "ATI RS600",
  72     "ATI RS690",
  73     "ATI RS740",
  74     "ATI RV515",
  75     "ATI R520",
  76     "ATI RV530",
  77     "ATI R580",
  78     "ATI RV560",
  79     "ATI RV570"
  80 };
  81
  82 static const char* r300_get_name(struct pipe_screen* pscreen)
  83 {
  84     struct r300_screen* r300screen = r300_screen(pscreen);
  85
  86     return chip_families[r300screen->caps.family];
  87 }
  88
  89 static int r300_get_param(struct pipe_screen* pscreen, enum pipe_cap param)
  90 {
  91     struct r300_screen* r300screen = r300_screen(pscreen);
  92     boolean is_r500 = r300screen->caps.is_r500;
  93
  94     switch (param) {
  95         /* Supported features (boolean caps). */
  96         case PIPE_CAP_NPOT_TEXTURES:
  97         case PIPE_CAP_MIXED_FRAMEBUFFER_SIZES:
  98         case PIPE_CAP_MIXED_COLOR_DEPTH_BITS:
  99         case PIPE_CAP_TWO_SIDED_STENCIL:
 100         case PIPE_CAP_ANISOTROPIC_FILTER:
 101         case PIPE_CAP_POINT_SPRITE:
 102         case PIPE_CAP_OCCLUSION_QUERY:
 103         case PIPE_CAP_TEXTURE_SHADOW_MAP:
 104         case PIPE_CAP_TEXTURE_MIRROR_CLAMP:
 105         case PIPE_CAP_BLEND_EQUATION_SEPARATE:
 106         case PIPE_CAP_VERTEX_ELEMENT_INSTANCE_DIVISOR:
 107         case PIPE_CAP_TGSI_FS_COORD_ORIGIN_UPPER_LEFT:
 108         case PIPE_CAP_TGSI_FS_COORD_PIXEL_CENTER_HALF_INTEGER:
 109         case PIPE_CAP_CONDITIONAL_RENDER:
 110         case PIPE_CAP_TEXTURE_BARRIER:
 111         case PIPE_CAP_TGSI_CAN_COMPACT_CONSTANTS:
 112         case PIPE_CAP_USER_CONSTANT_BUFFERS:
 113         case PIPE_CAP_PREFER_BLIT_BASED_TEXTURE_TRANSFER:
 114         case PIPE_CAP_BUFFER_MAP_PERSISTENT_COHERENT:
 115         case PIPE_CAP_CLIP_HALFZ:
 116         case PIPE_CAP_ALLOW_MAPPED_BUFFERS_DURING_EXECUTION:
 117             return 1;
 118
 119         case PIPE_CAP_MIN_MAP_BUFFER_ALIGNMENT:
 120             return R300_BUFFER_ALIGNMENT;
 121
 122         case PIPE_CAP_CONSTANT_BUFFER_OFFSET_ALIGNMENT:
 123             return 16;
 124
 125         case PIPE_CAP_GLSL_FEATURE_LEVEL:
 126             return 120;
 127
 128         /* r300 cannot do swizzling of compressed textures. Supported otherwise. */
 129         case PIPE_CAP_TEXTURE_SWIZZLE:
 130             return util_format_s3tc_enabled ? r300screen->caps.dxtc_swizzle : 1;
 131
 132         /* We don't support color clamping on r500, so that we can use color
 133          * intepolators for generic varyings. */
 134         case PIPE_CAP_VERTEX_COLOR_CLAMPED:
 135             return !is_r500;
 136
 137         /* Supported on r500 only. */
 138         case PIPE_CAP_VERTEX_COLOR_UNCLAMPED:
 139         case PIPE_CAP_MIXED_COLORBUFFER_FORMATS:
 140         case PIPE_CAP_SM3:
 141             return is_r500 ? 1 : 0;
 142
 143         /* Unsupported features. */
 144         case PIPE_CAP_QUERY_TIME_ELAPSED:
 145         case PIPE_CAP_QUERY_PIPELINE_STATISTICS:
 146         case PIPE_CAP_MAX_DUAL_SOURCE_RENDER_TARGETS:
 147         case PIPE_CAP_INDEP_BLEND_ENABLE:
 148         case PIPE_CAP_INDEP_BLEND_FUNC:
 149         case PIPE_CAP_DEPTH_CLIP_DISABLE:
 150         case PIPE_CAP_SHADER_STENCIL_EXPORT:
 151         case PIPE_CAP_MAX_TEXTURE_ARRAY_LAYERS:
 152         case PIPE_CAP_TGSI_INSTANCEID:
 153         case PIPE_CAP_TGSI_FS_COORD_ORIGIN_LOWER_LEFT:
 154         case PIPE_CAP_TGSI_FS_COORD_PIXEL_CENTER_INTEGER:
 155         case PIPE_CAP_SEAMLESS_CUBE_MAP:
 156         case PIPE_CAP_SEAMLESS_CUBE_MAP_PER_TEXTURE:
 157         case PIPE_CAP_MIN_TEXEL_OFFSET:
 158         case PIPE_CAP_MAX_TEXEL_OFFSET:
 159         case PIPE_CAP_MIN_TEXTURE_GATHER_OFFSET:
 160         case PIPE_CAP_MAX_TEXTURE_GATHER_OFFSET:
 161         case PIPE_CAP_MAX_STREAM_OUTPUT_BUFFERS:
 162         case PIPE_CAP_MAX_STREAM_OUTPUT_SEPARATE_COMPONENTS:
 163         case PIPE_CAP_MAX_STREAM_OUTPUT_INTERLEAVED_COMPONENTS:
 164         case PIPE_CAP_MAX_GEOMETRY_OUTPUT_VERTICES:
 165         case PIPE_CAP_MAX_GEOMETRY_TOTAL_OUTPUT_COMPONENTS:
 166         case PIPE_CAP_MAX_VERTEX_STREAMS:
 167         case PIPE_CAP_STREAM_OUTPUT_PAUSE_RESUME:
 168         case PIPE_CAP_STREAM_OUTPUT_INTERLEAVE_BUFFERS:
 169         case PIPE_CAP_FRAGMENT_COLOR_CLAMPED:
 170         case PIPE_CAP_QUADS_FOLLOW_PROVOKING_VERTEX_CONVENTION:
 171         case PIPE_CAP_COMPUTE:
 172         case PIPE_CAP_START_INSTANCE:
 173         case PIPE_CAP_QUERY_TIMESTAMP:
 174         case PIPE_CAP_TEXTURE_MULTISAMPLE:
 175         case PIPE_CAP_CUBE_MAP_ARRAY:
 176         case PIPE_CAP_TEXTURE_BUFFER_OBJECTS:
 177         case PIPE_CAP_TEXTURE_BUFFER_OFFSET_ALIGNMENT:
 178         case PIPE_CAP_TEXTURE_BORDER_COLOR_QUIRK:
 179         case PIPE_CAP_MAX_TEXTURE_BUFFER_SIZE:
 180         case PIPE_CAP_TGSI_VS_LAYER_VIEWPORT:
 181         case PIPE_CAP_MAX_TEXTURE_GATHER_COMPONENTS:
 182         case PIPE_CAP_TEXTURE_GATHER_SM5:
 183         case PIPE_CAP_TEXTURE_QUERY_LOD:
 184         case PIPE_CAP_FAKE_SW_MSAA:
 185         case PIPE_CAP_SAMPLE_SHADING:
 186         case PIPE_CAP_TEXTURE_GATHER_OFFSETS:
 187         case PIPE_CAP_DRAW_INDIRECT:
 188         case PIPE_CAP_MULTI_DRAW_INDIRECT:
 189         case PIPE_CAP_MULTI_DRAW_INDIRECT_PARAMS:
 190         case PIPE_CAP_TGSI_FS_FINE_DERIVATIVE:
 191         case PIPE_CAP_CONDITIONAL_RENDER_INVERTED:
 192         case PIPE_CAP_SAMPLER_VIEW_TARGET:
 193         case PIPE_CAP_VERTEXID_NOBASE:
 194         case PIPE_CAP_POLYGON_OFFSET_CLAMP:
 195         case PIPE_CAP_MULTISAMPLE_Z_RESOLVE:
 196         case PIPE_CAP_RESOURCE_FROM_USER_MEMORY:
 197         case PIPE_CAP_DEVICE_RESET_STATUS_QUERY:
 198         case PIPE_CAP_MAX_SHADER_PATCH_VARYINGS:
 199         case PIPE_CAP_TEXTURE_FLOAT_LINEAR:
 200         case PIPE_CAP_TEXTURE_HALF_FLOAT_LINEAR:
 201         case PIPE_CAP_DEPTH_BOUNDS_TEST:
 202         case PIPE_CAP_TGSI_TXQS:
 203         case PIPE_CAP_FORCE_PERSAMPLE_INTERP:
 204         case PIPE_CAP_SHAREABLE_SHADERS:
 205         case PIPE_CAP_COPY_BETWEEN_COMPRESSED_AND_PLAIN_FORMATS:
 206         case PIPE_CAP_CLEAR_TEXTURE:
 207         case PIPE_CAP_DRAW_PARAMETERS:
 208         case PIPE_CAP_TGSI_PACK_HALF_FLOAT:
 209         case PIPE_CAP_TGSI_FS_POSITION_IS_SYSVAL:
 210         case PIPE_CAP_TGSI_FS_FACE_IS_INTEGER_SYSVAL:
 211         case PIPE_CAP_SHADER_BUFFER_OFFSET_ALIGNMENT:
 212         case PIPE_CAP_INVALIDATE_BUFFER:
 213         case PIPE_CAP_GENERATE_MIPMAP:
 214         case PIPE_CAP_STRING_MARKER:
 215         case PIPE_CAP_BUFFER_SAMPLER_VIEW_RGBA_ONLY:
 216         case PIPE_CAP_SURFACE_REINTERPRET_BLOCKS:
 217         case PIPE_CAP_QUERY_BUFFER_OBJECT:
 218         case PIPE_CAP_QUERY_MEMORY_INFO:
 219         case PIPE_CAP_FRAMEBUFFER_NO_ATTACHMENT:
 220         case PIPE_CAP_ROBUST_BUFFER_ACCESS_BEHAVIOR:
 221         case PIPE_CAP_CULL_DISTANCE:
 222         case PIPE_CAP_PRIMITIVE_RESTART_FOR_PATCHES:
 223         case PIPE_CAP_TGSI_VOTE:
 224         case PIPE_CAP_MAX_WINDOW_RECTANGLES:
 225         case PIPE_CAP_POLYGON_OFFSET_UNITS_UNSCALED:
 226         case PIPE_CAP_VIEWPORT_SUBPIXEL_BITS:
 227         case PIPE_CAP_TGSI_ARRAY_COMPONENTS:
 228         case PIPE_CAP_TGSI_CAN_READ_OUTPUTS:
 229         case PIPE_CAP_NATIVE_FENCE_FD:
 230         case PIPE_CAP_GLSL_OPTIMIZE_CONSERVATIVELY:
 231         case PIPE_CAP_TGSI_FS_FBFETCH:
 232         case PIPE_CAP_TGSI_MUL_ZERO_WINS:
 233         case PIPE_CAP_DOUBLES:
 234         case PIPE_CAP_INT64:
 235         case PIPE_CAP_INT64_DIVMOD:
 236         case PIPE_CAP_TGSI_TEX_TXF_LZ:
 237         case PIPE_CAP_TGSI_CLOCK:
 238         case PIPE_CAP_POLYGON_MODE_FILL_RECTANGLE:
 239         case PIPE_CAP_SPARSE_BUFFER_PAGE_SIZE:
 240         case PIPE_CAP_TGSI_BALLOT:
 241         case PIPE_CAP_TGSI_TES_LAYER_VIEWPORT:
 242         case PIPE_CAP_CAN_BIND_CONST_BUFFER_AS_VERTEX:
 243         case PIPE_CAP_POST_DEPTH_COVERAGE:
 244             return 0;
 245
 246         /* SWTCL-only features. */
 247         case PIPE_CAP_PRIMITIVE_RESTART:
 248         case PIPE_CAP_USER_VERTEX_BUFFERS:
 249         case PIPE_CAP_TGSI_VS_WINDOW_SPACE_POSITION:
 250             return !r300screen->caps.has_tcl;
 251
 252         /* HWTCL-only features / limitations. */
 253         case PIPE_CAP_VERTEX_BUFFER_OFFSET_4BYTE_ALIGNED_ONLY:
 254         case PIPE_CAP_VERTEX_BUFFER_STRIDE_4BYTE_ALIGNED_ONLY:
 255         case PIPE_CAP_VERTEX_ELEMENT_SRC_OFFSET_4BYTE_ALIGNED_ONLY:
 256             return r300screen->caps.has_tcl;
 257         case PIPE_CAP_TGSI_TEXCOORD:
 258             return 0;
 259
 260         /* Texturing. */
 261         case PIPE_CAP_MAX_TEXTURE_2D_LEVELS:
 262         case PIPE_CAP_MAX_TEXTURE_3D_LEVELS:
 263         case PIPE_CAP_MAX_TEXTURE_CUBE_LEVELS:
 264             /* 13 == 4096, 12 == 2048 */
 265             return is_r500 ? 13 : 12;
 266
 267         /* Render targets. */
 268         case PIPE_CAP_MAX_RENDER_TARGETS:
 269             return 4;
 270         case PIPE_CAP_ENDIANNESS:
 271             return PIPE_ENDIAN_LITTLE;
 272
 273         case PIPE_CAP_MAX_VIEWPORTS:
 274             return 1;
 275
 276         case PIPE_CAP_MAX_VERTEX_ATTRIB_STRIDE:
 277             return 2048;
 278
 279         case PIPE_CAP_VENDOR_ID:
 280                 return 0x1002;
 281         case PIPE_CAP_DEVICE_ID:
 282                 return r300screen->info.pci_id;
 283         case PIPE_CAP_ACCELERATED:
 284                 return 1;
 285         case PIPE_CAP_VIDEO_MEMORY:
 286                 return r300screen->info.vram_size >> 20;
 287         case PIPE_CAP_UMA:
 288                 return 0;
 289         case PIPE_CAP_PCI_GROUP:
 290             return r300screen->info.pci_domain;
 291         case PIPE_CAP_PCI_BUS:
 292             return r300screen->info.pci_bus;
 293         case PIPE_CAP_PCI_DEVICE:
 294             return r300screen->info.pci_dev;
 295         case PIPE_CAP_PCI_FUNCTION:
 296             return r300screen->info.pci_func;
 297     }
 298     return 0;
 299 }
 300
 301 static int r300_get_shader_param(struct pipe_screen *pscreen,
 302                                  enum pipe_shader_type shader,
 303                                  enum pipe_shader_cap param)
 304 {
 305    struct r300_screen* r300screen = r300_screen(pscreen);
 306    boolean is_r400 = r300screen->caps.is_r400;
 307    boolean is_r500 = r300screen->caps.is_r500;
 308
 309    switch (shader) {
 310     case PIPE_SHADER_FRAGMENT:
 311         switch (param)
 312         {
 313         case PIPE_SHADER_CAP_MAX_INSTRUCTIONS:
 314             return is_r500 || is_r400 ? 512 : 96;
 315         case PIPE_SHADER_CAP_MAX_ALU_INSTRUCTIONS:
 316             return is_r500 || is_r400 ? 512 : 64;
 317         case PIPE_SHADER_CAP_MAX_TEX_INSTRUCTIONS:
 318             return is_r500 || is_r400 ? 512 : 32;
 319         case PIPE_SHADER_CAP_MAX_TEX_INDIRECTIONS:
 320             return is_r500 ? 511 : 4;
 321         case PIPE_SHADER_CAP_MAX_CONTROL_FLOW_DEPTH:
 322             return is_r500 ? 64 : 0; /* Actually unlimited on r500. */
 323             /* Fragment shader limits. */
 324         case PIPE_SHADER_CAP_MAX_INPUTS:
 325             /* 2 colors + 8 texcoords are always supported
 326              * (minus fog and wpos).
 327              *
 328              * R500 has the ability to turn 3rd and 4th color into
 329              * additional texcoords but there is no two-sided color
 330              * selection then. However the facing bit can be used instead. */
 331             return 10;
 332         case PIPE_SHADER_CAP_MAX_OUTPUTS:
 333             return 4;
 334         case PIPE_SHADER_CAP_MAX_CONST_BUFFER_SIZE:
 335             return (is_r500 ? 256 : 32) * sizeof(float[4]);
 336         case PIPE_SHADER_CAP_MAX_CONST_BUFFERS:
 337         case PIPE_SHADER_CAP_TGSI_ANY_INOUT_DECL_RANGE:
 338             return 1;
 339         case PIPE_SHADER_CAP_MAX_TEMPS:
 340             return is_r500 ? 128 : is_r400 ? 64 : 32;
 341         case PIPE_SHADER_CAP_MAX_TEXTURE_SAMPLERS:
 342         case PIPE_SHADER_CAP_MAX_SAMPLER_VIEWS:
 343            return r300screen->caps.num_tex_units;
 344         case PIPE_SHADER_CAP_TGSI_CONT_SUPPORTED:
 345         case PIPE_SHADER_CAP_TGSI_SQRT_SUPPORTED:
 346         case PIPE_SHADER_CAP_INDIRECT_INPUT_ADDR:
 347         case PIPE_SHADER_CAP_INDIRECT_OUTPUT_ADDR:
 348         case PIPE_SHADER_CAP_INDIRECT_TEMP_ADDR:
 349         case PIPE_SHADER_CAP_INDIRECT_CONST_ADDR:
 350         case PIPE_SHADER_CAP_SUBROUTINES:
 351         case PIPE_SHADER_CAP_INTEGERS:
 352         case PIPE_SHADER_CAP_TGSI_DROUND_SUPPORTED:
 353         case PIPE_SHADER_CAP_TGSI_DFRACEXP_DLDEXP_SUPPORTED:
 354         case PIPE_SHADER_CAP_TGSI_FMA_SUPPORTED:
 355         case PIPE_SHADER_CAP_MAX_SHADER_BUFFERS:
 356         case PIPE_SHADER_CAP_MAX_SHADER_IMAGES:
 357         case PIPE_SHADER_CAP_LOWER_IF_THRESHOLD:
 358         case PIPE_SHADER_CAP_TGSI_SKIP_MERGE_REGISTERS:
 359             return 0;
 360         case PIPE_SHADER_CAP_MAX_UNROLL_ITERATIONS_HINT:
 361             return 32;
 362         case PIPE_SHADER_CAP_PREFERRED_IR:
 363             return PIPE_SHADER_IR_TGSI;
 364         case PIPE_SHADER_CAP_SUPPORTED_IRS:
 365             return 0;
 366         }
 367         break;
 368     case PIPE_SHADER_VERTEX:
 369         switch (param)
 370         {
 371         case PIPE_SHADER_CAP_MAX_TEXTURE_SAMPLERS:
 372         case PIPE_SHADER_CAP_MAX_SAMPLER_VIEWS:
 373         case PIPE_SHADER_CAP_SUBROUTINES:
 374             return 0;
 375         default:;
 376         }
 377
 378         if (!r300screen->caps.has_tcl) {
 379             return draw_get_shader_param(shader, param);
 380         }
 381
 382         switch (param)
 383         {
 384         case PIPE_SHADER_CAP_MAX_INSTRUCTIONS:
 385         case PIPE_SHADER_CAP_MAX_ALU_INSTRUCTIONS:
 386             return is_r500 ? 1024 : 256;
 387         case PIPE_SHADER_CAP_MAX_CONTROL_FLOW_DEPTH:
 388             return is_r500 ? 4 : 0; /* For loops; not sure about conditionals. */
 389         case PIPE_SHADER_CAP_MAX_INPUTS:
 390             return 16;
 391         case PIPE_SHADER_CAP_MAX_OUTPUTS:
 392             return 10;
 393         case PIPE_SHADER_CAP_MAX_CONST_BUFFER_SIZE:
 394             return 256 * sizeof(float[4]);
 395         case PIPE_SHADER_CAP_MAX_CONST_BUFFERS:
 396             return 1;
 397         case PIPE_SHADER_CAP_MAX_TEMPS:
 398             return 32;
 399         case PIPE_SHADER_CAP_INDIRECT_CONST_ADDR:
 400         case PIPE_SHADER_CAP_TGSI_ANY_INOUT_DECL_RANGE:
 401             return 1;
 402         case PIPE_SHADER_CAP_MAX_TEX_INSTRUCTIONS:
 403         case PIPE_SHADER_CAP_MAX_TEX_INDIRECTIONS:
 404         case PIPE_SHADER_CAP_TGSI_CONT_SUPPORTED:
 405         case PIPE_SHADER_CAP_TGSI_SQRT_SUPPORTED:
 406         case PIPE_SHADER_CAP_INDIRECT_INPUT_ADDR:
 407         case PIPE_SHADER_CAP_INDIRECT_OUTPUT_ADDR:
 408         case PIPE_SHADER_CAP_INDIRECT_TEMP_ADDR:
 409         case PIPE_SHADER_CAP_SUBROUTINES:
 410         case PIPE_SHADER_CAP_INTEGERS:
 411         case PIPE_SHADER_CAP_MAX_TEXTURE_SAMPLERS:
 412         case PIPE_SHADER_CAP_MAX_SAMPLER_VIEWS:
 413         case PIPE_SHADER_CAP_TGSI_DROUND_SUPPORTED:
 414         case PIPE_SHADER_CAP_TGSI_DFRACEXP_DLDEXP_SUPPORTED:
 415         case PIPE_SHADER_CAP_TGSI_FMA_SUPPORTED:
 416         case PIPE_SHADER_CAP_MAX_SHADER_BUFFERS:
 417         case PIPE_SHADER_CAP_MAX_SHADER_IMAGES:
 418         case PIPE_SHADER_CAP_LOWER_IF_THRESHOLD:
 419         case PIPE_SHADER_CAP_TGSI_SKIP_MERGE_REGISTERS:
 420             return 0;
 421         case PIPE_SHADER_CAP_MAX_UNROLL_ITERATIONS_HINT:
 422             return 32;
 423         case PIPE_SHADER_CAP_PREFERRED_IR:
 424             return PIPE_SHADER_IR_TGSI;
 425         case PIPE_SHADER_CAP_SUPPORTED_IRS:
 426             return 0;
 427         }
 428         break;
 429     default:
 430         ; /* nothing */
 431     }
 432     return 0;
 433 }
 434
 435 static float r300_get_paramf(struct pipe_screen* pscreen,
 436                              enum pipe_capf param)
 437 {
 438     struct r300_screen* r300screen = r300_screen(pscreen);
 439
 440     switch (param) {
 441         case PIPE_CAPF_MAX_LINE_WIDTH:
 442         case PIPE_CAPF_MAX_LINE_WIDTH_AA:
 443         case PIPE_CAPF_MAX_POINT_WIDTH:
 444         case PIPE_CAPF_MAX_POINT_WIDTH_AA:
 445             /* The maximum dimensions of the colorbuffer are our practical
 446              * rendering limits. 2048 pixels should be enough for anybody. */
 447             if (r300screen->caps.is_r500) {
 448                 return 4096.0f;
 449             } else if (r300screen->caps.is_r400) {
 450                 return 4021.0f;
 451             } else {
 452                 return 2560.0f;
 453             }
 454         case PIPE_CAPF_MAX_TEXTURE_ANISOTROPY:
 455             return 16.0f;
 456         case PIPE_CAPF_MAX_TEXTURE_LOD_BIAS:
 457             return 16.0f;
 458         case PIPE_CAPF_GUARD_BAND_LEFT:
 459         case PIPE_CAPF_GUARD_BAND_TOP:
 460         case PIPE_CAPF_GUARD_BAND_RIGHT:
 461         case PIPE_CAPF_GUARD_BAND_BOTTOM:
 462             return 0.0f;
 463         default:
 464             debug_printf("r300: Warning: Unknown CAP %d in get_paramf.\n",
 465                          param);
 466             return 0.0f;
 467     }
 468 }
 469
 470 static int r300_get_video_param(struct pipe_screen *screen,
 471                                 enum pipe_video_profile profile,
 472                                 enum pipe_video_entrypoint entrypoint,
 473                                 enum pipe_video_cap param)
 474 {
 475    switch (param) {
 476       case PIPE_VIDEO_CAP_SUPPORTED:
 477          return vl_profile_supported(screen, profile, entrypoint);
 478       case PIPE_VIDEO_CAP_NPOT_TEXTURES:
 479          return 0;
 480       case PIPE_VIDEO_CAP_MAX_WIDTH:
 481       case PIPE_VIDEO_CAP_MAX_HEIGHT:
 482          return vl_video_buffer_max_size(screen);
 483       case PIPE_VIDEO_CAP_PREFERED_FORMAT:
 484          return PIPE_FORMAT_NV12;
 485       case PIPE_VIDEO_CAP_PREFERS_INTERLACED:
 486          return false;
 487       case PIPE_VIDEO_CAP_SUPPORTS_INTERLACED:
 488          return false;
 489       case PIPE_VIDEO_CAP_SUPPORTS_PROGRESSIVE:
 490          return true;
 491       case PIPE_VIDEO_CAP_MAX_LEVEL:
 492          return vl_level_supported(screen, profile);
 493       default:
 494          return 0;
 495    }
 496 }
 497
 498 /**
 499  * Whether the format matches:
 500  *   PIPE_FORMAT_?10?10?10?2_UNORM
 501  */
 502 static inline boolean
 503 util_format_is_rgba1010102_variant(const struct util_format_description *desc)
 504 {
 505    static const unsigned size[4] = {10, 10, 10, 2};
 506    unsigned chan;
 507
 508    if (desc->block.width != 1 ||
 509        desc->block.height != 1 ||
 510        desc->block.bits != 32)
 511       return FALSE;
 512
 513    for (chan = 0; chan < 4; ++chan) {
 514       if(desc->channel[chan].type != UTIL_FORMAT_TYPE_UNSIGNED &&
 515          desc->channel[chan].type != UTIL_FORMAT_TYPE_VOID)
 516          return FALSE;
 517       if (desc->channel[chan].size != size[chan])
 518          return FALSE;
 519    }
 520
 521    return TRUE;
 522 }
 523
 524 static bool r300_is_blending_supported(struct r300_screen *rscreen,
 525                                        enum pipe_format format)
 526 {
 527     int c;
 528     const struct util_format_description *desc =
 529         util_format_description(format);
 530
 531     if (desc->layout != UTIL_FORMAT_LAYOUT_PLAIN)
 532         return false;
 533
 534     c = util_format_get_first_non_void_channel(format);
 535
 536     /* RGBA16F */
 537     if (rscreen->caps.is_r500 &&
 538         desc->nr_channels == 4 &&
 539         desc->channel[c].size == 16 &&
 540         desc->channel[c].type == UTIL_FORMAT_TYPE_FLOAT)
 541         return true;
 542
 543     if (desc->channel[c].normalized &&
 544         desc->channel[c].type == UTIL_FORMAT_TYPE_UNSIGNED &&
 545         desc->channel[c].size >= 4 &&
 546         desc->channel[c].size <= 10) {
 547         /* RGB10_A2, RGBA8, RGB5_A1, RGBA4, RGB565 */
 548         if (desc->nr_channels >= 3)
 549             return true;
 550
 551         if (format == PIPE_FORMAT_R8G8_UNORM)
 552             return true;
 553
 554         /* R8, I8, L8, A8 */
 555         if (desc->nr_channels == 1)
 556             return true;
 557     }
 558
 559     return false;
 560 }
 561
 562 static boolean r300_is_format_supported(struct pipe_screen* screen,
 563                                         enum pipe_format format,
 564                                         enum pipe_texture_target target,
 565                                         unsigned sample_count,
 566                                         unsigned usage)
 567 {
 568     uint32_t retval = 0;
 569     boolean is_r500 = r300_screen(screen)->caps.is_r500;
 570     boolean is_r400 = r300_screen(screen)->caps.is_r400;
 571     boolean is_color2101010 = format == PIPE_FORMAT_R10G10B10A2_UNORM ||
 572                               format == PIPE_FORMAT_R10G10B10X2_SNORM ||
 573                               format == PIPE_FORMAT_B10G10R10A2_UNORM ||
 574                               format == PIPE_FORMAT_B10G10R10X2_UNORM ||
 575                               format == PIPE_FORMAT_R10SG10SB10SA2U_NORM;
 576     boolean is_ati1n = format == PIPE_FORMAT_RGTC1_UNORM ||
 577                        format == PIPE_FORMAT_RGTC1_SNORM ||
 578                        format == PIPE_FORMAT_LATC1_UNORM ||
 579                        format == PIPE_FORMAT_LATC1_SNORM;
 580     boolean is_ati2n = format == PIPE_FORMAT_RGTC2_UNORM ||
 581                        format == PIPE_FORMAT_RGTC2_SNORM ||
 582                        format == PIPE_FORMAT_LATC2_UNORM ||
 583                        format == PIPE_FORMAT_LATC2_SNORM;
 584     boolean is_half_float = format == PIPE_FORMAT_R16_FLOAT ||
 585                             format == PIPE_FORMAT_R16G16_FLOAT ||
 586                             format == PIPE_FORMAT_R16G16B16_FLOAT ||
 587                             format == PIPE_FORMAT_R16G16B16A16_FLOAT ||
 588                             format == PIPE_FORMAT_R16G16B16X16_FLOAT;
 589     const struct util_format_description *desc;
 590
 591     if (!util_format_is_supported(format, usage))
 592        return FALSE;
 593
 594     /* Check multisampling support. */
 595     switch (sample_count) {
 596         case 0:
 597         case 1:
 598             break;
 599         case 2:
 600         case 4:
 601         case 6:
 602             /* No texturing and scanout. */
 603             if (usage & (PIPE_BIND_SAMPLER_VIEW |
 604                          PIPE_BIND_DISPLAY_TARGET |
 605                          PIPE_BIND_SCANOUT)) {
 606                 return FALSE;
 607             }
 608
 609             desc = util_format_description(format);
 610
 611             if (is_r500) {
 612                 /* Only allow depth/stencil, RGBA8, RGBA1010102, RGBA16F. */
 613                 if (!util_format_is_depth_or_stencil(format) &&
 614                     !util_format_is_rgba8_variant(desc) &&
 615                     !util_format_is_rgba1010102_variant(desc) &&
 616                     format != PIPE_FORMAT_R16G16B16A16_FLOAT &&
 617                     format != PIPE_FORMAT_R16G16B16X16_FLOAT) {
 618                     return FALSE;
 619                 }
 620             } else {
 621                 /* Only allow depth/stencil, RGBA8. */
 622                 if (!util_format_is_depth_or_stencil(format) &&
 623                     !util_format_is_rgba8_variant(desc)) {
 624                     return FALSE;
 625                 }
 626             }
 627             break;
 628         default:
 629             return FALSE;
 630     }
 631
 632     /* Check sampler format support. */
 633     if ((usage & PIPE_BIND_SAMPLER_VIEW) &&
 634         /* these two are broken for an unknown reason */
 635         format != PIPE_FORMAT_R8G8B8X8_SNORM &&
 636         format != PIPE_FORMAT_R16G16B16X16_SNORM &&
 637         /* ATI1N is r5xx-only. */
 638         (is_r500 || !is_ati1n) &&
 639         /* ATI2N is supported on r4xx-r5xx. */
 640         (is_r400 || is_r500 || !is_ati2n) &&
 641         r300_is_sampler_format_supported(format)) {
 642         retval |= PIPE_BIND_SAMPLER_VIEW;
 643     }
 644
 645     /* Check colorbuffer format support. */
 646     if ((usage & (PIPE_BIND_RENDER_TARGET |
 647                   PIPE_BIND_DISPLAY_TARGET |
 648                   PIPE_BIND_SCANOUT |
 649                   PIPE_BIND_SHARED |
 650                   PIPE_BIND_BLENDABLE)) &&
 651         /* 2101010 cannot be rendered to on non-r5xx. */
 652         (!is_color2101010 || is_r500) &&
 653         r300_is_colorbuffer_format_supported(format)) {
 654         retval |= usage &
 655             (PIPE_BIND_RENDER_TARGET |
 656              PIPE_BIND_DISPLAY_TARGET |
 657              PIPE_BIND_SCANOUT |
 658              PIPE_BIND_SHARED);
 659
 660         if (r300_is_blending_supported(r300_screen(screen), format)) {
 661             retval |= usage & PIPE_BIND_BLENDABLE;
 662         }
 663     }
 664
 665     /* Check depth-stencil format support. */
 666     if (usage & PIPE_BIND_DEPTH_STENCIL &&
 667         r300_is_zs_format_supported(format)) {
 668         retval |= PIPE_BIND_DEPTH_STENCIL;
 669     }
 670
 671     /* Check vertex buffer format support. */
 672     if (usage & PIPE_BIND_VERTEX_BUFFER) {
 673         if (r300_screen(screen)->caps.has_tcl) {
 674             /* Half float is supported on >= R400. */
 675             if ((is_r400 || is_r500 || !is_half_float) &&
 676                 r300_translate_vertex_data_type(format) != R300_INVALID_FORMAT) {
 677                 retval |= PIPE_BIND_VERTEX_BUFFER;
 678             }
 679         } else {
 680             /* SW TCL */
 681             if (!util_format_is_pure_integer(format)) {
 682                 retval |= PIPE_BIND_VERTEX_BUFFER;
 683             }
 684         }
 685     }
 686
 687     return retval == usage;
 688 }
 689
 690 static void r300_destroy_screen(struct pipe_screen* pscreen)
 691 {
 692     struct r300_screen* r300screen = r300_screen(pscreen);
 693     struct radeon_winsys *rws = radeon_winsys(pscreen);
 694
 695     if (rws && !rws->unref(rws))
 696       return;
 697
 698     mtx_destroy(&r300screen->cmask_mutex);
 699     slab_destroy_parent(&r300screen->pool_transfers);
 700
 701     if (rws)
 702       rws->destroy(rws);
 703
 704     FREE(r300screen);
 705 }
 706
 707 static void r300_fence_reference(struct pipe_screen *screen,
 708                                  struct pipe_fence_handle **ptr,
 709                                  struct pipe_fence_handle *fence)
 710 {
 711     struct radeon_winsys *rws = r300_screen(screen)->rws;
 712
 713     rws->fence_reference(ptr, fence);
 714 }
 715
 716 static boolean r300_fence_finish(struct pipe_screen *screen,
 717                                  struct pipe_context *ctx,
 718                                  struct pipe_fence_handle *fence,
 719                                  uint64_t timeout)
 720 {
 721     struct radeon_winsys *rws = r300_screen(screen)->rws;
 722
 723     return rws->fence_wait(rws, fence, timeout);
 724 }
 725
 726 struct pipe_screen* r300_screen_create(struct radeon_winsys *rws)
 727 {
 728     struct r300_screen *r300screen = CALLOC_STRUCT(r300_screen);
 729
 730     if (!r300screen) {
 731         FREE(r300screen);
 732         return NULL;
 733     }
 734
 735     rws->query_info(rws, &r300screen->info);
 736
 737     r300_init_debug(r300screen);
 738     r300_parse_chipset(r300screen->info.pci_id, &r300screen->caps);
 739
 740     if (SCREEN_DBG_ON(r300screen, DBG_NO_ZMASK))
 741         r300screen->caps.zmask_ram = 0;
 742     if (SCREEN_DBG_ON(r300screen, DBG_NO_HIZ))
 743         r300screen->caps.hiz_ram = 0;
 744
 745     r300screen->rws = rws;
 746     r300screen->screen.destroy = r300_destroy_screen;
 747     r300screen->screen.get_name = r300_get_name;
 748     r300screen->screen.get_vendor = r300_get_vendor;
 749     r300screen->screen.get_device_vendor = r300_get_device_vendor;
 750     r300screen->screen.get_param = r300_get_param;
 751     r300screen->screen.get_shader_param = r300_get_shader_param;
 752     r300screen->screen.get_paramf = r300_get_paramf;
 753     r300screen->screen.get_video_param = r300_get_video_param;
 754     r300screen->screen.is_format_supported = r300_is_format_supported;
 755     r300screen->screen.is_video_format_supported = vl_video_buffer_is_format_supported;
 756     r300screen->screen.context_create = r300_create_context;
 757     r300screen->screen.fence_reference = r300_fence_reference;
 758     r300screen->screen.fence_finish = r300_fence_finish;
 759
 760     r300_init_screen_resource_functions(r300screen);
 761
 762     slab_create_parent(&r300screen->pool_transfers, sizeof(struct pipe_transfer), 64);
 763
 764     util_format_s3tc_init();
 765     (void) mtx_init(&r300screen->cmask_mutex, mtx_plain);
 766
 767     return &r300screen->screen;
 768 }