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 "util/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 r300screen->caps.dxtc_swizzle;
 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         case PIPE_CAP_BINDLESS_TEXTURE:
 245         case PIPE_CAP_NIR_SAMPLERS_AS_DEREF:
 246         case PIPE_CAP_QUERY_SO_OVERFLOW:
 247         case PIPE_CAP_MEMOBJ:
 248         case PIPE_CAP_LOAD_CONSTBUF:
 249         case PIPE_CAP_TGSI_ANY_REG_AS_ADDRESS:
 250         case PIPE_CAP_TILE_RASTER_ORDER:
 251         case PIPE_CAP_MAX_COMBINED_SHADER_OUTPUT_RESOURCES:
 252         case PIPE_CAP_SIGNED_VERTEX_BUFFER_OFFSET:
 253         case PIPE_CAP_CONTEXT_PRIORITY_MASK:
 254             return 0;
 255
 256         /* SWTCL-only features. */
 257         case PIPE_CAP_PRIMITIVE_RESTART:
 258         case PIPE_CAP_USER_VERTEX_BUFFERS:
 259         case PIPE_CAP_TGSI_VS_WINDOW_SPACE_POSITION:
 260             return !r300screen->caps.has_tcl;
 261
 262         /* HWTCL-only features / limitations. */
 263         case PIPE_CAP_VERTEX_BUFFER_OFFSET_4BYTE_ALIGNED_ONLY:
 264         case PIPE_CAP_VERTEX_BUFFER_STRIDE_4BYTE_ALIGNED_ONLY:
 265         case PIPE_CAP_VERTEX_ELEMENT_SRC_OFFSET_4BYTE_ALIGNED_ONLY:
 266             return r300screen->caps.has_tcl;
 267         case PIPE_CAP_TGSI_TEXCOORD:
 268             return 0;
 269
 270         /* Texturing. */
 271         case PIPE_CAP_MAX_TEXTURE_2D_LEVELS:
 272         case PIPE_CAP_MAX_TEXTURE_3D_LEVELS:
 273         case PIPE_CAP_MAX_TEXTURE_CUBE_LEVELS:
 274             /* 13 == 4096, 12 == 2048 */
 275             return is_r500 ? 13 : 12;
 276
 277         /* Render targets. */
 278         case PIPE_CAP_MAX_RENDER_TARGETS:
 279             return 4;
 280         case PIPE_CAP_ENDIANNESS:
 281             return PIPE_ENDIAN_LITTLE;
 282
 283         case PIPE_CAP_MAX_VIEWPORTS:
 284             return 1;
 285
 286         case PIPE_CAP_MAX_VERTEX_ATTRIB_STRIDE:
 287             return 2048;
 288
 289         case PIPE_CAP_VENDOR_ID:
 290                 return 0x1002;
 291         case PIPE_CAP_DEVICE_ID:
 292                 return r300screen->info.pci_id;
 293         case PIPE_CAP_ACCELERATED:
 294                 return 1;
 295         case PIPE_CAP_VIDEO_MEMORY:
 296                 return r300screen->info.vram_size >> 20;
 297         case PIPE_CAP_UMA:
 298                 return 0;
 299         case PIPE_CAP_PCI_GROUP:
 300             return r300screen->info.pci_domain;
 301         case PIPE_CAP_PCI_BUS:
 302             return r300screen->info.pci_bus;
 303         case PIPE_CAP_PCI_DEVICE:
 304             return r300screen->info.pci_dev;
 305         case PIPE_CAP_PCI_FUNCTION:
 306             return r300screen->info.pci_func;
 307     }
 308     return 0;
 309 }
 310
 311 static int r300_get_shader_param(struct pipe_screen *pscreen,
 312                                  enum pipe_shader_type shader,
 313                                  enum pipe_shader_cap param)
 314 {
 315    struct r300_screen* r300screen = r300_screen(pscreen);
 316    boolean is_r400 = r300screen->caps.is_r400;
 317    boolean is_r500 = r300screen->caps.is_r500;
 318
 319    switch (shader) {
 320     case PIPE_SHADER_FRAGMENT:
 321         switch (param)
 322         {
 323         case PIPE_SHADER_CAP_MAX_INSTRUCTIONS:
 324             return is_r500 || is_r400 ? 512 : 96;
 325         case PIPE_SHADER_CAP_MAX_ALU_INSTRUCTIONS:
 326             return is_r500 || is_r400 ? 512 : 64;
 327         case PIPE_SHADER_CAP_MAX_TEX_INSTRUCTIONS:
 328             return is_r500 || is_r400 ? 512 : 32;
 329         case PIPE_SHADER_CAP_MAX_TEX_INDIRECTIONS:
 330             return is_r500 ? 511 : 4;
 331         case PIPE_SHADER_CAP_MAX_CONTROL_FLOW_DEPTH:
 332             return is_r500 ? 64 : 0; /* Actually unlimited on r500. */
 333             /* Fragment shader limits. */
 334         case PIPE_SHADER_CAP_MAX_INPUTS:
 335             /* 2 colors + 8 texcoords are always supported
 336              * (minus fog and wpos).
 337              *
 338              * R500 has the ability to turn 3rd and 4th color into
 339              * additional texcoords but there is no two-sided color
 340              * selection then. However the facing bit can be used instead. */
 341             return 10;
 342         case PIPE_SHADER_CAP_MAX_OUTPUTS:
 343             return 4;
 344         case PIPE_SHADER_CAP_MAX_CONST_BUFFER_SIZE:
 345             return (is_r500 ? 256 : 32) * sizeof(float[4]);
 346         case PIPE_SHADER_CAP_MAX_CONST_BUFFERS:
 347         case PIPE_SHADER_CAP_TGSI_ANY_INOUT_DECL_RANGE:
 348             return 1;
 349         case PIPE_SHADER_CAP_MAX_TEMPS:
 350             return is_r500 ? 128 : is_r400 ? 64 : 32;
 351         case PIPE_SHADER_CAP_MAX_TEXTURE_SAMPLERS:
 352         case PIPE_SHADER_CAP_MAX_SAMPLER_VIEWS:
 353            return r300screen->caps.num_tex_units;
 354         case PIPE_SHADER_CAP_TGSI_CONT_SUPPORTED:
 355         case PIPE_SHADER_CAP_TGSI_SQRT_SUPPORTED:
 356         case PIPE_SHADER_CAP_INDIRECT_INPUT_ADDR:
 357         case PIPE_SHADER_CAP_INDIRECT_OUTPUT_ADDR:
 358         case PIPE_SHADER_CAP_INDIRECT_TEMP_ADDR:
 359         case PIPE_SHADER_CAP_INDIRECT_CONST_ADDR:
 360         case PIPE_SHADER_CAP_SUBROUTINES:
 361         case PIPE_SHADER_CAP_INTEGERS:
 362         case PIPE_SHADER_CAP_INT64_ATOMICS:
 363         case PIPE_SHADER_CAP_FP16:
 364         case PIPE_SHADER_CAP_TGSI_DROUND_SUPPORTED:
 365         case PIPE_SHADER_CAP_TGSI_DFRACEXP_DLDEXP_SUPPORTED:
 366         case PIPE_SHADER_CAP_TGSI_LDEXP_SUPPORTED:
 367         case PIPE_SHADER_CAP_TGSI_FMA_SUPPORTED:
 368         case PIPE_SHADER_CAP_MAX_SHADER_BUFFERS:
 369         case PIPE_SHADER_CAP_MAX_SHADER_IMAGES:
 370         case PIPE_SHADER_CAP_LOWER_IF_THRESHOLD:
 371         case PIPE_SHADER_CAP_TGSI_SKIP_MERGE_REGISTERS:
 372         case PIPE_SHADER_CAP_MAX_HW_ATOMIC_COUNTERS:
 373         case PIPE_SHADER_CAP_MAX_HW_ATOMIC_COUNTER_BUFFERS:
 374             return 0;
 375         case PIPE_SHADER_CAP_MAX_UNROLL_ITERATIONS_HINT:
 376             return 32;
 377         case PIPE_SHADER_CAP_PREFERRED_IR:
 378             return PIPE_SHADER_IR_TGSI;
 379         case PIPE_SHADER_CAP_SUPPORTED_IRS:
 380             return 0;
 381         }
 382         break;
 383     case PIPE_SHADER_VERTEX:
 384         switch (param)
 385         {
 386         case PIPE_SHADER_CAP_MAX_TEXTURE_SAMPLERS:
 387         case PIPE_SHADER_CAP_MAX_SAMPLER_VIEWS:
 388         case PIPE_SHADER_CAP_SUBROUTINES:
 389             return 0;
 390         default:;
 391         }
 392
 393         if (!r300screen->caps.has_tcl) {
 394             return draw_get_shader_param(shader, param);
 395         }
 396
 397         switch (param)
 398         {
 399         case PIPE_SHADER_CAP_MAX_INSTRUCTIONS:
 400         case PIPE_SHADER_CAP_MAX_ALU_INSTRUCTIONS:
 401             return is_r500 ? 1024 : 256;
 402         case PIPE_SHADER_CAP_MAX_CONTROL_FLOW_DEPTH:
 403             return is_r500 ? 4 : 0; /* For loops; not sure about conditionals. */
 404         case PIPE_SHADER_CAP_MAX_INPUTS:
 405             return 16;
 406         case PIPE_SHADER_CAP_MAX_OUTPUTS:
 407             return 10;
 408         case PIPE_SHADER_CAP_MAX_CONST_BUFFER_SIZE:
 409             return 256 * sizeof(float[4]);
 410         case PIPE_SHADER_CAP_MAX_CONST_BUFFERS:
 411             return 1;
 412         case PIPE_SHADER_CAP_MAX_TEMPS:
 413             return 32;
 414         case PIPE_SHADER_CAP_INDIRECT_CONST_ADDR:
 415         case PIPE_SHADER_CAP_TGSI_ANY_INOUT_DECL_RANGE:
 416             return 1;
 417         case PIPE_SHADER_CAP_MAX_TEX_INSTRUCTIONS:
 418         case PIPE_SHADER_CAP_MAX_TEX_INDIRECTIONS:
 419         case PIPE_SHADER_CAP_TGSI_CONT_SUPPORTED:
 420         case PIPE_SHADER_CAP_TGSI_SQRT_SUPPORTED:
 421         case PIPE_SHADER_CAP_INDIRECT_INPUT_ADDR:
 422         case PIPE_SHADER_CAP_INDIRECT_OUTPUT_ADDR:
 423         case PIPE_SHADER_CAP_INDIRECT_TEMP_ADDR:
 424         case PIPE_SHADER_CAP_SUBROUTINES:
 425         case PIPE_SHADER_CAP_INTEGERS:
 426         case PIPE_SHADER_CAP_FP16:
 427         case PIPE_SHADER_CAP_INT64_ATOMICS:
 428         case PIPE_SHADER_CAP_MAX_TEXTURE_SAMPLERS:
 429         case PIPE_SHADER_CAP_MAX_SAMPLER_VIEWS:
 430         case PIPE_SHADER_CAP_TGSI_DROUND_SUPPORTED:
 431         case PIPE_SHADER_CAP_TGSI_DFRACEXP_DLDEXP_SUPPORTED:
 432         case PIPE_SHADER_CAP_TGSI_LDEXP_SUPPORTED:
 433         case PIPE_SHADER_CAP_TGSI_FMA_SUPPORTED:
 434         case PIPE_SHADER_CAP_MAX_SHADER_BUFFERS:
 435         case PIPE_SHADER_CAP_MAX_SHADER_IMAGES:
 436         case PIPE_SHADER_CAP_LOWER_IF_THRESHOLD:
 437         case PIPE_SHADER_CAP_TGSI_SKIP_MERGE_REGISTERS:
 438         case PIPE_SHADER_CAP_MAX_HW_ATOMIC_COUNTERS:
 439         case PIPE_SHADER_CAP_MAX_HW_ATOMIC_COUNTER_BUFFERS:
 440             return 0;
 441         case PIPE_SHADER_CAP_MAX_UNROLL_ITERATIONS_HINT:
 442             return 32;
 443         case PIPE_SHADER_CAP_PREFERRED_IR:
 444             return PIPE_SHADER_IR_TGSI;
 445         case PIPE_SHADER_CAP_SUPPORTED_IRS:
 446             return 0;
 447         }
 448         break;
 449     default:
 450         ; /* nothing */
 451     }
 452     return 0;
 453 }
 454
 455 static float r300_get_paramf(struct pipe_screen* pscreen,
 456                              enum pipe_capf param)
 457 {
 458     struct r300_screen* r300screen = r300_screen(pscreen);
 459
 460     switch (param) {
 461         case PIPE_CAPF_MAX_LINE_WIDTH:
 462         case PIPE_CAPF_MAX_LINE_WIDTH_AA:
 463         case PIPE_CAPF_MAX_POINT_WIDTH:
 464         case PIPE_CAPF_MAX_POINT_WIDTH_AA:
 465             /* The maximum dimensions of the colorbuffer are our practical
 466              * rendering limits. 2048 pixels should be enough for anybody. */
 467             if (r300screen->caps.is_r500) {
 468                 return 4096.0f;
 469             } else if (r300screen->caps.is_r400) {
 470                 return 4021.0f;
 471             } else {
 472                 return 2560.0f;
 473             }
 474         case PIPE_CAPF_MAX_TEXTURE_ANISOTROPY:
 475             return 16.0f;
 476         case PIPE_CAPF_MAX_TEXTURE_LOD_BIAS:
 477             return 16.0f;
 478         case PIPE_CAPF_GUARD_BAND_LEFT:
 479         case PIPE_CAPF_GUARD_BAND_TOP:
 480         case PIPE_CAPF_GUARD_BAND_RIGHT:
 481         case PIPE_CAPF_GUARD_BAND_BOTTOM:
 482             return 0.0f;
 483         default:
 484             debug_printf("r300: Warning: Unknown CAP %d in get_paramf.\n",
 485                          param);
 486             return 0.0f;
 487     }
 488 }
 489
 490 static int r300_get_video_param(struct pipe_screen *screen,
 491                                 enum pipe_video_profile profile,
 492                                 enum pipe_video_entrypoint entrypoint,
 493                                 enum pipe_video_cap param)
 494 {
 495    switch (param) {
 496       case PIPE_VIDEO_CAP_SUPPORTED:
 497          return vl_profile_supported(screen, profile, entrypoint);
 498       case PIPE_VIDEO_CAP_NPOT_TEXTURES:
 499          return 0;
 500       case PIPE_VIDEO_CAP_MAX_WIDTH:
 501       case PIPE_VIDEO_CAP_MAX_HEIGHT:
 502          return vl_video_buffer_max_size(screen);
 503       case PIPE_VIDEO_CAP_PREFERED_FORMAT:
 504          return PIPE_FORMAT_NV12;
 505       case PIPE_VIDEO_CAP_PREFERS_INTERLACED:
 506          return false;
 507       case PIPE_VIDEO_CAP_SUPPORTS_INTERLACED:
 508          return false;
 509       case PIPE_VIDEO_CAP_SUPPORTS_PROGRESSIVE:
 510          return true;
 511       case PIPE_VIDEO_CAP_MAX_LEVEL:
 512          return vl_level_supported(screen, profile);
 513       default:
 514          return 0;
 515    }
 516 }
 517
 518 /**
 519  * Whether the format matches:
 520  *   PIPE_FORMAT_?10?10?10?2_UNORM
 521  */
 522 static inline boolean
 523 util_format_is_rgba1010102_variant(const struct util_format_description *desc)
 524 {
 525    static const unsigned size[4] = {10, 10, 10, 2};
 526    unsigned chan;
 527
 528    if (desc->block.width != 1 ||
 529        desc->block.height != 1 ||
 530        desc->block.bits != 32)
 531       return FALSE;
 532
 533    for (chan = 0; chan < 4; ++chan) {
 534       if(desc->channel[chan].type != UTIL_FORMAT_TYPE_UNSIGNED &&
 535          desc->channel[chan].type != UTIL_FORMAT_TYPE_VOID)
 536          return FALSE;
 537       if (desc->channel[chan].size != size[chan])
 538          return FALSE;
 539    }
 540
 541    return TRUE;
 542 }
 543
 544 static bool r300_is_blending_supported(struct r300_screen *rscreen,
 545                                        enum pipe_format format)
 546 {
 547     int c;
 548     const struct util_format_description *desc =
 549         util_format_description(format);
 550
 551     if (desc->layout != UTIL_FORMAT_LAYOUT_PLAIN)
 552         return false;
 553
 554     c = util_format_get_first_non_void_channel(format);
 555
 556     /* RGBA16F */
 557     if (rscreen->caps.is_r500 &&
 558         desc->nr_channels == 4 &&
 559         desc->channel[c].size == 16 &&
 560         desc->channel[c].type == UTIL_FORMAT_TYPE_FLOAT)
 561         return true;
 562
 563     if (desc->channel[c].normalized &&
 564         desc->channel[c].type == UTIL_FORMAT_TYPE_UNSIGNED &&
 565         desc->channel[c].size >= 4 &&
 566         desc->channel[c].size <= 10) {
 567         /* RGB10_A2, RGBA8, RGB5_A1, RGBA4, RGB565 */
 568         if (desc->nr_channels >= 3)
 569             return true;
 570
 571         if (format == PIPE_FORMAT_R8G8_UNORM)
 572             return true;
 573
 574         /* R8, I8, L8, A8 */
 575         if (desc->nr_channels == 1)
 576             return true;
 577     }
 578
 579     return false;
 580 }
 581
 582 static boolean r300_is_format_supported(struct pipe_screen* screen,
 583                                         enum pipe_format format,
 584                                         enum pipe_texture_target target,
 585                                         unsigned sample_count,
 586                                         unsigned usage)
 587 {
 588     uint32_t retval = 0;
 589     boolean is_r500 = r300_screen(screen)->caps.is_r500;
 590     boolean is_r400 = r300_screen(screen)->caps.is_r400;
 591     boolean is_color2101010 = format == PIPE_FORMAT_R10G10B10A2_UNORM ||
 592                               format == PIPE_FORMAT_R10G10B10X2_SNORM ||
 593                               format == PIPE_FORMAT_B10G10R10A2_UNORM ||
 594                               format == PIPE_FORMAT_B10G10R10X2_UNORM ||
 595                               format == PIPE_FORMAT_R10SG10SB10SA2U_NORM;
 596     boolean is_ati1n = format == PIPE_FORMAT_RGTC1_UNORM ||
 597                        format == PIPE_FORMAT_RGTC1_SNORM ||
 598                        format == PIPE_FORMAT_LATC1_UNORM ||
 599                        format == PIPE_FORMAT_LATC1_SNORM;
 600     boolean is_ati2n = format == PIPE_FORMAT_RGTC2_UNORM ||
 601                        format == PIPE_FORMAT_RGTC2_SNORM ||
 602                        format == PIPE_FORMAT_LATC2_UNORM ||
 603                        format == PIPE_FORMAT_LATC2_SNORM;
 604     boolean is_half_float = format == PIPE_FORMAT_R16_FLOAT ||
 605                             format == PIPE_FORMAT_R16G16_FLOAT ||
 606                             format == PIPE_FORMAT_R16G16B16_FLOAT ||
 607                             format == PIPE_FORMAT_R16G16B16A16_FLOAT ||
 608                             format == PIPE_FORMAT_R16G16B16X16_FLOAT;
 609     const struct util_format_description *desc;
 610
 611     if (!util_format_is_supported(format, usage))
 612        return FALSE;
 613
 614     /* Check multisampling support. */
 615     switch (sample_count) {
 616         case 0:
 617         case 1:
 618             break;
 619         case 2:
 620         case 4:
 621         case 6:
 622             /* No texturing and scanout. */
 623             if (usage & (PIPE_BIND_SAMPLER_VIEW |
 624                          PIPE_BIND_DISPLAY_TARGET |
 625                          PIPE_BIND_SCANOUT)) {
 626                 return FALSE;
 627             }
 628
 629             desc = util_format_description(format);
 630
 631             if (is_r500) {
 632                 /* Only allow depth/stencil, RGBA8, RGBA1010102, RGBA16F. */
 633                 if (!util_format_is_depth_or_stencil(format) &&
 634                     !util_format_is_rgba8_variant(desc) &&
 635                     !util_format_is_rgba1010102_variant(desc) &&
 636                     format != PIPE_FORMAT_R16G16B16A16_FLOAT &&
 637                     format != PIPE_FORMAT_R16G16B16X16_FLOAT) {
 638                     return FALSE;
 639                 }
 640             } else {
 641                 /* Only allow depth/stencil, RGBA8. */
 642                 if (!util_format_is_depth_or_stencil(format) &&
 643                     !util_format_is_rgba8_variant(desc)) {
 644                     return FALSE;
 645                 }
 646             }
 647             break;
 648         default:
 649             return FALSE;
 650     }
 651
 652     /* Check sampler format support. */
 653     if ((usage & PIPE_BIND_SAMPLER_VIEW) &&
 654         /* these two are broken for an unknown reason */
 655         format != PIPE_FORMAT_R8G8B8X8_SNORM &&
 656         format != PIPE_FORMAT_R16G16B16X16_SNORM &&
 657         /* ATI1N is r5xx-only. */
 658         (is_r500 || !is_ati1n) &&
 659         /* ATI2N is supported on r4xx-r5xx. */
 660         (is_r400 || is_r500 || !is_ati2n) &&
 661         r300_is_sampler_format_supported(format)) {
 662         retval |= PIPE_BIND_SAMPLER_VIEW;
 663     }
 664
 665     /* Check colorbuffer format support. */
 666     if ((usage & (PIPE_BIND_RENDER_TARGET |
 667                   PIPE_BIND_DISPLAY_TARGET |
 668                   PIPE_BIND_SCANOUT |
 669                   PIPE_BIND_SHARED |
 670                   PIPE_BIND_BLENDABLE)) &&
 671         /* 2101010 cannot be rendered to on non-r5xx. */
 672         (!is_color2101010 || is_r500) &&
 673         r300_is_colorbuffer_format_supported(format)) {
 674         retval |= usage &
 675             (PIPE_BIND_RENDER_TARGET |
 676              PIPE_BIND_DISPLAY_TARGET |
 677              PIPE_BIND_SCANOUT |
 678              PIPE_BIND_SHARED);
 679
 680         if (r300_is_blending_supported(r300_screen(screen), format)) {
 681             retval |= usage & PIPE_BIND_BLENDABLE;
 682         }
 683     }
 684
 685     /* Check depth-stencil format support. */
 686     if (usage & PIPE_BIND_DEPTH_STENCIL &&
 687         r300_is_zs_format_supported(format)) {
 688         retval |= PIPE_BIND_DEPTH_STENCIL;
 689     }
 690
 691     /* Check vertex buffer format support. */
 692     if (usage & PIPE_BIND_VERTEX_BUFFER) {
 693         if (r300_screen(screen)->caps.has_tcl) {
 694             /* Half float is supported on >= R400. */
 695             if ((is_r400 || is_r500 || !is_half_float) &&
 696                 r300_translate_vertex_data_type(format) != R300_INVALID_FORMAT) {
 697                 retval |= PIPE_BIND_VERTEX_BUFFER;
 698             }
 699         } else {
 700             /* SW TCL */
 701             if (!util_format_is_pure_integer(format)) {
 702                 retval |= PIPE_BIND_VERTEX_BUFFER;
 703             }
 704         }
 705     }
 706
 707     return retval == usage;
 708 }
 709
 710 static void r300_destroy_screen(struct pipe_screen* pscreen)
 711 {
 712     struct r300_screen* r300screen = r300_screen(pscreen);
 713     struct radeon_winsys *rws = radeon_winsys(pscreen);
 714
 715     if (rws && !rws->unref(rws))
 716       return;
 717
 718     mtx_destroy(&r300screen->cmask_mutex);
 719     slab_destroy_parent(&r300screen->pool_transfers);
 720
 721     if (rws)
 722       rws->destroy(rws);
 723
 724     FREE(r300screen);
 725 }
 726
 727 static void r300_fence_reference(struct pipe_screen *screen,
 728                                  struct pipe_fence_handle **ptr,
 729                                  struct pipe_fence_handle *fence)
 730 {
 731     struct radeon_winsys *rws = r300_screen(screen)->rws;
 732
 733     rws->fence_reference(ptr, fence);
 734 }
 735
 736 static boolean r300_fence_finish(struct pipe_screen *screen,
 737                                  struct pipe_context *ctx,
 738                                  struct pipe_fence_handle *fence,
 739                                  uint64_t timeout)
 740 {
 741     struct radeon_winsys *rws = r300_screen(screen)->rws;
 742
 743     return rws->fence_wait(rws, fence, timeout);
 744 }
 745
 746 struct pipe_screen* r300_screen_create(struct radeon_winsys *rws,
 747                                        const struct pipe_screen_config *config)
 748 {
 749     struct r300_screen *r300screen = CALLOC_STRUCT(r300_screen);
 750
 751     if (!r300screen) {
 752         FREE(r300screen);
 753         return NULL;
 754     }
 755
 756     rws->query_info(rws, &r300screen->info);
 757
 758     r300_init_debug(r300screen);
 759     r300_parse_chipset(r300screen->info.pci_id, &r300screen->caps);
 760
 761     if (SCREEN_DBG_ON(r300screen, DBG_NO_ZMASK))
 762         r300screen->caps.zmask_ram = 0;
 763     if (SCREEN_DBG_ON(r300screen, DBG_NO_HIZ))
 764         r300screen->caps.hiz_ram = 0;
 765
 766     r300screen->rws = rws;
 767     r300screen->screen.destroy = r300_destroy_screen;
 768     r300screen->screen.get_name = r300_get_name;
 769     r300screen->screen.get_vendor = r300_get_vendor;
 770     r300screen->screen.get_device_vendor = r300_get_device_vendor;
 771     r300screen->screen.get_param = r300_get_param;
 772     r300screen->screen.get_shader_param = r300_get_shader_param;
 773     r300screen->screen.get_paramf = r300_get_paramf;
 774     r300screen->screen.get_video_param = r300_get_video_param;
 775     r300screen->screen.is_format_supported = r300_is_format_supported;
 776     r300screen->screen.is_video_format_supported = vl_video_buffer_is_format_supported;
 777     r300screen->screen.context_create = r300_create_context;
 778     r300screen->screen.fence_reference = r300_fence_reference;
 779     r300screen->screen.fence_finish = r300_fence_finish;
 780
 781     r300_init_screen_resource_functions(r300screen);
 782
 783     slab_create_parent(&r300screen->pool_transfers, sizeof(struct pipe_transfer), 64);
 784
 785     (void) mtx_init(&r300screen->cmask_mutex, mtx_plain);
 786
 787     return &r300screen->screen;
 788 }