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         case PIPE_CAP_TGSI_TEX_TXF_LZ:
 236         case PIPE_CAP_TGSI_CLOCK:
 237         case PIPE_CAP_POLYGON_MODE_FILL_RECTANGLE:
 238         case PIPE_CAP_SPARSE_BUFFER_PAGE_SIZE:
 239         case PIPE_CAP_TGSI_BALLOT:
 240         case PIPE_CAP_TGSI_TES_LAYER_VIEWPORT:
 241             return 0;
 242
 243         /* SWTCL-only features. */
 244         case PIPE_CAP_PRIMITIVE_RESTART:
 245         case PIPE_CAP_USER_VERTEX_BUFFERS:
 246         case PIPE_CAP_TGSI_VS_WINDOW_SPACE_POSITION:
 247             return !r300screen->caps.has_tcl;
 248
 249         /* HWTCL-only features / limitations. */
 250         case PIPE_CAP_VERTEX_BUFFER_OFFSET_4BYTE_ALIGNED_ONLY:
 251         case PIPE_CAP_VERTEX_BUFFER_STRIDE_4BYTE_ALIGNED_ONLY:
 252         case PIPE_CAP_VERTEX_ELEMENT_SRC_OFFSET_4BYTE_ALIGNED_ONLY:
 253             return r300screen->caps.has_tcl;
 254         case PIPE_CAP_TGSI_TEXCOORD:
 255             return 0;
 256
 257         /* Texturing. */
 258         case PIPE_CAP_MAX_TEXTURE_2D_LEVELS:
 259         case PIPE_CAP_MAX_TEXTURE_3D_LEVELS:
 260         case PIPE_CAP_MAX_TEXTURE_CUBE_LEVELS:
 261             /* 13 == 4096, 12 == 2048 */
 262             return is_r500 ? 13 : 12;
 263
 264         /* Render targets. */
 265         case PIPE_CAP_MAX_RENDER_TARGETS:
 266             return 4;
 267         case PIPE_CAP_ENDIANNESS:
 268             return PIPE_ENDIAN_LITTLE;
 269
 270         case PIPE_CAP_MAX_VIEWPORTS:
 271             return 1;
 272
 273         case PIPE_CAP_MAX_VERTEX_ATTRIB_STRIDE:
 274             return 2048;
 275
 276         case PIPE_CAP_VENDOR_ID:
 277                 return 0x1002;
 278         case PIPE_CAP_DEVICE_ID:
 279                 return r300screen->info.pci_id;
 280         case PIPE_CAP_ACCELERATED:
 281                 return 1;
 282         case PIPE_CAP_VIDEO_MEMORY:
 283                 return r300screen->info.vram_size >> 20;
 284         case PIPE_CAP_UMA:
 285                 return 0;
 286         case PIPE_CAP_PCI_GROUP:
 287             return r300screen->info.pci_domain;
 288         case PIPE_CAP_PCI_BUS:
 289             return r300screen->info.pci_bus;
 290         case PIPE_CAP_PCI_DEVICE:
 291             return r300screen->info.pci_dev;
 292         case PIPE_CAP_PCI_FUNCTION:
 293             return r300screen->info.pci_func;
 294     }
 295     return 0;
 296 }
 297
 298 static int r300_get_shader_param(struct pipe_screen *pscreen,
 299                                  enum pipe_shader_type shader,
 300                                  enum pipe_shader_cap param)
 301 {
 302    struct r300_screen* r300screen = r300_screen(pscreen);
 303    boolean is_r400 = r300screen->caps.is_r400;
 304    boolean is_r500 = r300screen->caps.is_r500;
 305
 306    switch (shader) {
 307     case PIPE_SHADER_FRAGMENT:
 308         switch (param)
 309         {
 310         case PIPE_SHADER_CAP_MAX_INSTRUCTIONS:
 311             return is_r500 || is_r400 ? 512 : 96;
 312         case PIPE_SHADER_CAP_MAX_ALU_INSTRUCTIONS:
 313             return is_r500 || is_r400 ? 512 : 64;
 314         case PIPE_SHADER_CAP_MAX_TEX_INSTRUCTIONS:
 315             return is_r500 || is_r400 ? 512 : 32;
 316         case PIPE_SHADER_CAP_MAX_TEX_INDIRECTIONS:
 317             return is_r500 ? 511 : 4;
 318         case PIPE_SHADER_CAP_MAX_CONTROL_FLOW_DEPTH:
 319             return is_r500 ? 64 : 0; /* Actually unlimited on r500. */
 320             /* Fragment shader limits. */
 321         case PIPE_SHADER_CAP_MAX_INPUTS:
 322             /* 2 colors + 8 texcoords are always supported
 323              * (minus fog and wpos).
 324              *
 325              * R500 has the ability to turn 3rd and 4th color into
 326              * additional texcoords but there is no two-sided color
 327              * selection then. However the facing bit can be used instead. */
 328             return 10;
 329         case PIPE_SHADER_CAP_MAX_OUTPUTS:
 330             return 4;
 331         case PIPE_SHADER_CAP_MAX_CONST_BUFFER_SIZE:
 332             return (is_r500 ? 256 : 32) * sizeof(float[4]);
 333         case PIPE_SHADER_CAP_MAX_CONST_BUFFERS:
 334         case PIPE_SHADER_CAP_TGSI_ANY_INOUT_DECL_RANGE:
 335             return 1;
 336         case PIPE_SHADER_CAP_MAX_TEMPS:
 337             return is_r500 ? 128 : is_r400 ? 64 : 32;
 338         case PIPE_SHADER_CAP_MAX_TEXTURE_SAMPLERS:
 339         case PIPE_SHADER_CAP_MAX_SAMPLER_VIEWS:
 340            return r300screen->caps.num_tex_units;
 341         case PIPE_SHADER_CAP_TGSI_CONT_SUPPORTED:
 342         case PIPE_SHADER_CAP_TGSI_SQRT_SUPPORTED:
 343         case PIPE_SHADER_CAP_INDIRECT_INPUT_ADDR:
 344         case PIPE_SHADER_CAP_INDIRECT_OUTPUT_ADDR:
 345         case PIPE_SHADER_CAP_INDIRECT_TEMP_ADDR:
 346         case PIPE_SHADER_CAP_INDIRECT_CONST_ADDR:
 347         case PIPE_SHADER_CAP_SUBROUTINES:
 348         case PIPE_SHADER_CAP_INTEGERS:
 349         case PIPE_SHADER_CAP_TGSI_DROUND_SUPPORTED:
 350         case PIPE_SHADER_CAP_TGSI_DFRACEXP_DLDEXP_SUPPORTED:
 351         case PIPE_SHADER_CAP_TGSI_FMA_SUPPORTED:
 352         case PIPE_SHADER_CAP_MAX_SHADER_BUFFERS:
 353         case PIPE_SHADER_CAP_MAX_SHADER_IMAGES:
 354         case PIPE_SHADER_CAP_LOWER_IF_THRESHOLD:
 355         case PIPE_SHADER_CAP_TGSI_SKIP_MERGE_REGISTERS:
 356             return 0;
 357         case PIPE_SHADER_CAP_MAX_UNROLL_ITERATIONS_HINT:
 358             return 32;
 359         case PIPE_SHADER_CAP_PREFERRED_IR:
 360             return PIPE_SHADER_IR_TGSI;
 361         case PIPE_SHADER_CAP_SUPPORTED_IRS:
 362             return 0;
 363         }
 364         break;
 365     case PIPE_SHADER_VERTEX:
 366         switch (param)
 367         {
 368         case PIPE_SHADER_CAP_MAX_TEXTURE_SAMPLERS:
 369         case PIPE_SHADER_CAP_MAX_SAMPLER_VIEWS:
 370         case PIPE_SHADER_CAP_SUBROUTINES:
 371             return 0;
 372         default:;
 373         }
 374
 375         if (!r300screen->caps.has_tcl) {
 376             return draw_get_shader_param(shader, param);
 377         }
 378
 379         switch (param)
 380         {
 381         case PIPE_SHADER_CAP_MAX_INSTRUCTIONS:
 382         case PIPE_SHADER_CAP_MAX_ALU_INSTRUCTIONS:
 383             return is_r500 ? 1024 : 256;
 384         case PIPE_SHADER_CAP_MAX_CONTROL_FLOW_DEPTH:
 385             return is_r500 ? 4 : 0; /* For loops; not sure about conditionals. */
 386         case PIPE_SHADER_CAP_MAX_INPUTS:
 387             return 16;
 388         case PIPE_SHADER_CAP_MAX_OUTPUTS:
 389             return 10;
 390         case PIPE_SHADER_CAP_MAX_CONST_BUFFER_SIZE:
 391             return 256 * sizeof(float[4]);
 392         case PIPE_SHADER_CAP_MAX_CONST_BUFFERS:
 393             return 1;
 394         case PIPE_SHADER_CAP_MAX_TEMPS:
 395             return 32;
 396         case PIPE_SHADER_CAP_INDIRECT_CONST_ADDR:
 397         case PIPE_SHADER_CAP_TGSI_ANY_INOUT_DECL_RANGE:
 398             return 1;
 399         case PIPE_SHADER_CAP_MAX_TEX_INSTRUCTIONS:
 400         case PIPE_SHADER_CAP_MAX_TEX_INDIRECTIONS:
 401         case PIPE_SHADER_CAP_TGSI_CONT_SUPPORTED:
 402         case PIPE_SHADER_CAP_TGSI_SQRT_SUPPORTED:
 403         case PIPE_SHADER_CAP_INDIRECT_INPUT_ADDR:
 404         case PIPE_SHADER_CAP_INDIRECT_OUTPUT_ADDR:
 405         case PIPE_SHADER_CAP_INDIRECT_TEMP_ADDR:
 406         case PIPE_SHADER_CAP_SUBROUTINES:
 407         case PIPE_SHADER_CAP_INTEGERS:
 408         case PIPE_SHADER_CAP_MAX_TEXTURE_SAMPLERS:
 409         case PIPE_SHADER_CAP_MAX_SAMPLER_VIEWS:
 410         case PIPE_SHADER_CAP_TGSI_DROUND_SUPPORTED:
 411         case PIPE_SHADER_CAP_TGSI_DFRACEXP_DLDEXP_SUPPORTED:
 412         case PIPE_SHADER_CAP_TGSI_FMA_SUPPORTED:
 413         case PIPE_SHADER_CAP_MAX_SHADER_BUFFERS:
 414         case PIPE_SHADER_CAP_MAX_SHADER_IMAGES:
 415         case PIPE_SHADER_CAP_LOWER_IF_THRESHOLD:
 416         case PIPE_SHADER_CAP_TGSI_SKIP_MERGE_REGISTERS:
 417             return 0;
 418         case PIPE_SHADER_CAP_MAX_UNROLL_ITERATIONS_HINT:
 419             return 32;
 420         case PIPE_SHADER_CAP_PREFERRED_IR:
 421             return PIPE_SHADER_IR_TGSI;
 422         case PIPE_SHADER_CAP_SUPPORTED_IRS:
 423             return 0;
 424         }
 425         break;
 426     default:
 427         ; /* nothing */
 428     }
 429     return 0;
 430 }
 431
 432 static float r300_get_paramf(struct pipe_screen* pscreen,
 433                              enum pipe_capf param)
 434 {
 435     struct r300_screen* r300screen = r300_screen(pscreen);
 436
 437     switch (param) {
 438         case PIPE_CAPF_MAX_LINE_WIDTH:
 439         case PIPE_CAPF_MAX_LINE_WIDTH_AA:
 440         case PIPE_CAPF_MAX_POINT_WIDTH:
 441         case PIPE_CAPF_MAX_POINT_WIDTH_AA:
 442             /* The maximum dimensions of the colorbuffer are our practical
 443              * rendering limits. 2048 pixels should be enough for anybody. */
 444             if (r300screen->caps.is_r500) {
 445                 return 4096.0f;
 446             } else if (r300screen->caps.is_r400) {
 447                 return 4021.0f;
 448             } else {
 449                 return 2560.0f;
 450             }
 451         case PIPE_CAPF_MAX_TEXTURE_ANISOTROPY:
 452             return 16.0f;
 453         case PIPE_CAPF_MAX_TEXTURE_LOD_BIAS:
 454             return 16.0f;
 455         case PIPE_CAPF_GUARD_BAND_LEFT:
 456         case PIPE_CAPF_GUARD_BAND_TOP:
 457         case PIPE_CAPF_GUARD_BAND_RIGHT:
 458         case PIPE_CAPF_GUARD_BAND_BOTTOM:
 459             return 0.0f;
 460         default:
 461             debug_printf("r300: Warning: Unknown CAP %d in get_paramf.\n",
 462                          param);
 463             return 0.0f;
 464     }
 465 }
 466
 467 static int r300_get_video_param(struct pipe_screen *screen,
 468                                 enum pipe_video_profile profile,
 469                                 enum pipe_video_entrypoint entrypoint,
 470                                 enum pipe_video_cap param)
 471 {
 472    switch (param) {
 473       case PIPE_VIDEO_CAP_SUPPORTED:
 474          return vl_profile_supported(screen, profile, entrypoint);
 475       case PIPE_VIDEO_CAP_NPOT_TEXTURES:
 476          return 0;
 477       case PIPE_VIDEO_CAP_MAX_WIDTH:
 478       case PIPE_VIDEO_CAP_MAX_HEIGHT:
 479          return vl_video_buffer_max_size(screen);
 480       case PIPE_VIDEO_CAP_PREFERED_FORMAT:
 481          return PIPE_FORMAT_NV12;
 482       case PIPE_VIDEO_CAP_PREFERS_INTERLACED:
 483          return false;
 484       case PIPE_VIDEO_CAP_SUPPORTS_INTERLACED:
 485          return false;
 486       case PIPE_VIDEO_CAP_SUPPORTS_PROGRESSIVE:
 487          return true;
 488       case PIPE_VIDEO_CAP_MAX_LEVEL:
 489          return vl_level_supported(screen, profile);
 490       default:
 491          return 0;
 492    }
 493 }
 494
 495 /**
 496  * Whether the format matches:
 497  *   PIPE_FORMAT_?10?10?10?2_UNORM
 498  */
 499 static inline boolean
 500 util_format_is_rgba1010102_variant(const struct util_format_description *desc)
 501 {
 502    static const unsigned size[4] = {10, 10, 10, 2};
 503    unsigned chan;
 504
 505    if (desc->block.width != 1 ||
 506        desc->block.height != 1 ||
 507        desc->block.bits != 32)
 508       return FALSE;
 509
 510    for (chan = 0; chan < 4; ++chan) {
 511       if(desc->channel[chan].type != UTIL_FORMAT_TYPE_UNSIGNED &&
 512          desc->channel[chan].type != UTIL_FORMAT_TYPE_VOID)
 513          return FALSE;
 514       if (desc->channel[chan].size != size[chan])
 515          return FALSE;
 516    }
 517
 518    return TRUE;
 519 }
 520
 521 static bool r300_is_blending_supported(struct r300_screen *rscreen,
 522                                        enum pipe_format format)
 523 {
 524     int c;
 525     const struct util_format_description *desc =
 526         util_format_description(format);
 527
 528     if (desc->layout != UTIL_FORMAT_LAYOUT_PLAIN)
 529         return false;
 530
 531     c = util_format_get_first_non_void_channel(format);
 532
 533     /* RGBA16F */
 534     if (rscreen->caps.is_r500 &&
 535         desc->nr_channels == 4 &&
 536         desc->channel[c].size == 16 &&
 537         desc->channel[c].type == UTIL_FORMAT_TYPE_FLOAT)
 538         return true;
 539
 540     if (desc->channel[c].normalized &&
 541         desc->channel[c].type == UTIL_FORMAT_TYPE_UNSIGNED &&
 542         desc->channel[c].size >= 4 &&
 543         desc->channel[c].size <= 10) {
 544         /* RGB10_A2, RGBA8, RGB5_A1, RGBA4, RGB565 */
 545         if (desc->nr_channels >= 3)
 546             return true;
 547
 548         if (format == PIPE_FORMAT_R8G8_UNORM)
 549             return true;
 550
 551         /* R8, I8, L8, A8 */
 552         if (desc->nr_channels == 1)
 553             return true;
 554     }
 555
 556     return false;
 557 }
 558
 559 static boolean r300_is_format_supported(struct pipe_screen* screen,
 560                                         enum pipe_format format,
 561                                         enum pipe_texture_target target,
 562                                         unsigned sample_count,
 563                                         unsigned usage)
 564 {
 565     uint32_t retval = 0;
 566     boolean is_r500 = r300_screen(screen)->caps.is_r500;
 567     boolean is_r400 = r300_screen(screen)->caps.is_r400;
 568     boolean is_color2101010 = format == PIPE_FORMAT_R10G10B10A2_UNORM ||
 569                               format == PIPE_FORMAT_R10G10B10X2_SNORM ||
 570                               format == PIPE_FORMAT_B10G10R10A2_UNORM ||
 571                               format == PIPE_FORMAT_B10G10R10X2_UNORM ||
 572                               format == PIPE_FORMAT_R10SG10SB10SA2U_NORM;
 573     boolean is_ati1n = format == PIPE_FORMAT_RGTC1_UNORM ||
 574                        format == PIPE_FORMAT_RGTC1_SNORM ||
 575                        format == PIPE_FORMAT_LATC1_UNORM ||
 576                        format == PIPE_FORMAT_LATC1_SNORM;
 577     boolean is_ati2n = format == PIPE_FORMAT_RGTC2_UNORM ||
 578                        format == PIPE_FORMAT_RGTC2_SNORM ||
 579                        format == PIPE_FORMAT_LATC2_UNORM ||
 580                        format == PIPE_FORMAT_LATC2_SNORM;
 581     boolean is_half_float = format == PIPE_FORMAT_R16_FLOAT ||
 582                             format == PIPE_FORMAT_R16G16_FLOAT ||
 583                             format == PIPE_FORMAT_R16G16B16_FLOAT ||
 584                             format == PIPE_FORMAT_R16G16B16A16_FLOAT ||
 585                             format == PIPE_FORMAT_R16G16B16X16_FLOAT;
 586     const struct util_format_description *desc;
 587
 588     if (!util_format_is_supported(format, usage))
 589        return FALSE;
 590
 591     /* Check multisampling support. */
 592     switch (sample_count) {
 593         case 0:
 594         case 1:
 595             break;
 596         case 2:
 597         case 4:
 598         case 6:
 599             /* No texturing and scanout. */
 600             if (usage & (PIPE_BIND_SAMPLER_VIEW |
 601                          PIPE_BIND_DISPLAY_TARGET |
 602                          PIPE_BIND_SCANOUT)) {
 603                 return FALSE;
 604             }
 605
 606             desc = util_format_description(format);
 607
 608             if (is_r500) {
 609                 /* Only allow depth/stencil, RGBA8, RGBA1010102, RGBA16F. */
 610                 if (!util_format_is_depth_or_stencil(format) &&
 611                     !util_format_is_rgba8_variant(desc) &&
 612                     !util_format_is_rgba1010102_variant(desc) &&
 613                     format != PIPE_FORMAT_R16G16B16A16_FLOAT &&
 614                     format != PIPE_FORMAT_R16G16B16X16_FLOAT) {
 615                     return FALSE;
 616                 }
 617             } else {
 618                 /* Only allow depth/stencil, RGBA8. */
 619                 if (!util_format_is_depth_or_stencil(format) &&
 620                     !util_format_is_rgba8_variant(desc)) {
 621                     return FALSE;
 622                 }
 623             }
 624             break;
 625         default:
 626             return FALSE;
 627     }
 628
 629     /* Check sampler format support. */
 630     if ((usage & PIPE_BIND_SAMPLER_VIEW) &&
 631         /* these two are broken for an unknown reason */
 632         format != PIPE_FORMAT_R8G8B8X8_SNORM &&
 633         format != PIPE_FORMAT_R16G16B16X16_SNORM &&
 634         /* ATI1N is r5xx-only. */
 635         (is_r500 || !is_ati1n) &&
 636         /* ATI2N is supported on r4xx-r5xx. */
 637         (is_r400 || is_r500 || !is_ati2n) &&
 638         r300_is_sampler_format_supported(format)) {
 639         retval |= PIPE_BIND_SAMPLER_VIEW;
 640     }
 641
 642     /* Check colorbuffer format support. */
 643     if ((usage & (PIPE_BIND_RENDER_TARGET |
 644                   PIPE_BIND_DISPLAY_TARGET |
 645                   PIPE_BIND_SCANOUT |
 646                   PIPE_BIND_SHARED |
 647                   PIPE_BIND_BLENDABLE)) &&
 648         /* 2101010 cannot be rendered to on non-r5xx. */
 649         (!is_color2101010 || is_r500) &&
 650         r300_is_colorbuffer_format_supported(format)) {
 651         retval |= usage &
 652             (PIPE_BIND_RENDER_TARGET |
 653              PIPE_BIND_DISPLAY_TARGET |
 654              PIPE_BIND_SCANOUT |
 655              PIPE_BIND_SHARED);
 656
 657         if (r300_is_blending_supported(r300_screen(screen), format)) {
 658             retval |= usage & PIPE_BIND_BLENDABLE;
 659         }
 660     }
 661
 662     /* Check depth-stencil format support. */
 663     if (usage & PIPE_BIND_DEPTH_STENCIL &&
 664         r300_is_zs_format_supported(format)) {
 665         retval |= PIPE_BIND_DEPTH_STENCIL;
 666     }
 667
 668     /* Check vertex buffer format support. */
 669     if (usage & PIPE_BIND_VERTEX_BUFFER) {
 670         if (r300_screen(screen)->caps.has_tcl) {
 671             /* Half float is supported on >= R400. */
 672             if ((is_r400 || is_r500 || !is_half_float) &&
 673                 r300_translate_vertex_data_type(format) != R300_INVALID_FORMAT) {
 674                 retval |= PIPE_BIND_VERTEX_BUFFER;
 675             }
 676         } else {
 677             /* SW TCL */
 678             if (!util_format_is_pure_integer(format)) {
 679                 retval |= PIPE_BIND_VERTEX_BUFFER;
 680             }
 681         }
 682     }
 683
 684     return retval == usage;
 685 }
 686
 687 static void r300_destroy_screen(struct pipe_screen* pscreen)
 688 {
 689     struct r300_screen* r300screen = r300_screen(pscreen);
 690     struct radeon_winsys *rws = radeon_winsys(pscreen);
 691
 692     if (rws && !rws->unref(rws))
 693       return;
 694
 695     mtx_destroy(&r300screen->cmask_mutex);
 696     slab_destroy_parent(&r300screen->pool_transfers);
 697
 698     if (rws)
 699       rws->destroy(rws);
 700
 701     FREE(r300screen);
 702 }
 703
 704 static void r300_fence_reference(struct pipe_screen *screen,
 705                                  struct pipe_fence_handle **ptr,
 706                                  struct pipe_fence_handle *fence)
 707 {
 708     struct radeon_winsys *rws = r300_screen(screen)->rws;
 709
 710     rws->fence_reference(ptr, fence);
 711 }
 712
 713 static boolean r300_fence_finish(struct pipe_screen *screen,
 714                                  struct pipe_context *ctx,
 715                                  struct pipe_fence_handle *fence,
 716                                  uint64_t timeout)
 717 {
 718     struct radeon_winsys *rws = r300_screen(screen)->rws;
 719
 720     return rws->fence_wait(rws, fence, timeout);
 721 }
 722
 723 struct pipe_screen* r300_screen_create(struct radeon_winsys *rws)
 724 {
 725     struct r300_screen *r300screen = CALLOC_STRUCT(r300_screen);
 726
 727     if (!r300screen) {
 728         FREE(r300screen);
 729         return NULL;
 730     }
 731
 732     rws->query_info(rws, &r300screen->info);
 733
 734     r300_init_debug(r300screen);
 735     r300_parse_chipset(r300screen->info.pci_id, &r300screen->caps);
 736
 737     if (SCREEN_DBG_ON(r300screen, DBG_NO_ZMASK))
 738         r300screen->caps.zmask_ram = 0;
 739     if (SCREEN_DBG_ON(r300screen, DBG_NO_HIZ))
 740         r300screen->caps.hiz_ram = 0;
 741
 742     r300screen->rws = rws;
 743     r300screen->screen.destroy = r300_destroy_screen;
 744     r300screen->screen.get_name = r300_get_name;
 745     r300screen->screen.get_vendor = r300_get_vendor;
 746     r300screen->screen.get_device_vendor = r300_get_device_vendor;
 747     r300screen->screen.get_param = r300_get_param;
 748     r300screen->screen.get_shader_param = r300_get_shader_param;
 749     r300screen->screen.get_paramf = r300_get_paramf;
 750     r300screen->screen.get_video_param = r300_get_video_param;
 751     r300screen->screen.is_format_supported = r300_is_format_supported;
 752     r300screen->screen.is_video_format_supported = vl_video_buffer_is_format_supported;
 753     r300screen->screen.context_create = r300_create_context;
 754     r300screen->screen.fence_reference = r300_fence_reference;
 755     r300screen->screen.fence_finish = r300_fence_finish;
 756
 757     r300_init_screen_resource_functions(r300screen);
 758
 759     slab_create_parent(&r300screen->pool_transfers, sizeof(struct pipe_transfer), 64);
 760
 761     util_format_s3tc_init();
 762     (void) mtx_init(&r300screen->cmask_mutex, mtx_plain);
 763
 764     return &r300screen->screen;
 765 }