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         case PIPE_CAP_CAN_BIND_CONST_BUFFER_AS_VERTEX:
 242             return 0;
 243
 244         /* SWTCL-only features. */
 245         case PIPE_CAP_PRIMITIVE_RESTART:
 246         case PIPE_CAP_USER_VERTEX_BUFFERS:
 247         case PIPE_CAP_TGSI_VS_WINDOW_SPACE_POSITION:
 248             return !r300screen->caps.has_tcl;
 249
 250         /* HWTCL-only features / limitations. */
 251         case PIPE_CAP_VERTEX_BUFFER_OFFSET_4BYTE_ALIGNED_ONLY:
 252         case PIPE_CAP_VERTEX_BUFFER_STRIDE_4BYTE_ALIGNED_ONLY:
 253         case PIPE_CAP_VERTEX_ELEMENT_SRC_OFFSET_4BYTE_ALIGNED_ONLY:
 254             return r300screen->caps.has_tcl;
 255         case PIPE_CAP_TGSI_TEXCOORD:
 256             return 0;
 257
 258         /* Texturing. */
 259         case PIPE_CAP_MAX_TEXTURE_2D_LEVELS:
 260         case PIPE_CAP_MAX_TEXTURE_3D_LEVELS:
 261         case PIPE_CAP_MAX_TEXTURE_CUBE_LEVELS:
 262             /* 13 == 4096, 12 == 2048 */
 263             return is_r500 ? 13 : 12;
 264
 265         /* Render targets. */
 266         case PIPE_CAP_MAX_RENDER_TARGETS:
 267             return 4;
 268         case PIPE_CAP_ENDIANNESS:
 269             return PIPE_ENDIAN_LITTLE;
 270
 271         case PIPE_CAP_MAX_VIEWPORTS:
 272             return 1;
 273
 274         case PIPE_CAP_MAX_VERTEX_ATTRIB_STRIDE:
 275             return 2048;
 276
 277         case PIPE_CAP_VENDOR_ID:
 278                 return 0x1002;
 279         case PIPE_CAP_DEVICE_ID:
 280                 return r300screen->info.pci_id;
 281         case PIPE_CAP_ACCELERATED:
 282                 return 1;
 283         case PIPE_CAP_VIDEO_MEMORY:
 284                 return r300screen->info.vram_size >> 20;
 285         case PIPE_CAP_UMA:
 286                 return 0;
 287         case PIPE_CAP_PCI_GROUP:
 288             return r300screen->info.pci_domain;
 289         case PIPE_CAP_PCI_BUS:
 290             return r300screen->info.pci_bus;
 291         case PIPE_CAP_PCI_DEVICE:
 292             return r300screen->info.pci_dev;
 293         case PIPE_CAP_PCI_FUNCTION:
 294             return r300screen->info.pci_func;
 295     }
 296     return 0;
 297 }
 298
 299 static int r300_get_shader_param(struct pipe_screen *pscreen,
 300                                  enum pipe_shader_type shader,
 301                                  enum pipe_shader_cap param)
 302 {
 303    struct r300_screen* r300screen = r300_screen(pscreen);
 304    boolean is_r400 = r300screen->caps.is_r400;
 305    boolean is_r500 = r300screen->caps.is_r500;
 306
 307    switch (shader) {
 308     case PIPE_SHADER_FRAGMENT:
 309         switch (param)
 310         {
 311         case PIPE_SHADER_CAP_MAX_INSTRUCTIONS:
 312             return is_r500 || is_r400 ? 512 : 96;
 313         case PIPE_SHADER_CAP_MAX_ALU_INSTRUCTIONS:
 314             return is_r500 || is_r400 ? 512 : 64;
 315         case PIPE_SHADER_CAP_MAX_TEX_INSTRUCTIONS:
 316             return is_r500 || is_r400 ? 512 : 32;
 317         case PIPE_SHADER_CAP_MAX_TEX_INDIRECTIONS:
 318             return is_r500 ? 511 : 4;
 319         case PIPE_SHADER_CAP_MAX_CONTROL_FLOW_DEPTH:
 320             return is_r500 ? 64 : 0; /* Actually unlimited on r500. */
 321             /* Fragment shader limits. */
 322         case PIPE_SHADER_CAP_MAX_INPUTS:
 323             /* 2 colors + 8 texcoords are always supported
 324              * (minus fog and wpos).
 325              *
 326              * R500 has the ability to turn 3rd and 4th color into
 327              * additional texcoords but there is no two-sided color
 328              * selection then. However the facing bit can be used instead. */
 329             return 10;
 330         case PIPE_SHADER_CAP_MAX_OUTPUTS:
 331             return 4;
 332         case PIPE_SHADER_CAP_MAX_CONST_BUFFER_SIZE:
 333             return (is_r500 ? 256 : 32) * sizeof(float[4]);
 334         case PIPE_SHADER_CAP_MAX_CONST_BUFFERS:
 335         case PIPE_SHADER_CAP_TGSI_ANY_INOUT_DECL_RANGE:
 336             return 1;
 337         case PIPE_SHADER_CAP_MAX_TEMPS:
 338             return is_r500 ? 128 : is_r400 ? 64 : 32;
 339         case PIPE_SHADER_CAP_MAX_TEXTURE_SAMPLERS:
 340         case PIPE_SHADER_CAP_MAX_SAMPLER_VIEWS:
 341            return r300screen->caps.num_tex_units;
 342         case PIPE_SHADER_CAP_TGSI_CONT_SUPPORTED:
 343         case PIPE_SHADER_CAP_TGSI_SQRT_SUPPORTED:
 344         case PIPE_SHADER_CAP_INDIRECT_INPUT_ADDR:
 345         case PIPE_SHADER_CAP_INDIRECT_OUTPUT_ADDR:
 346         case PIPE_SHADER_CAP_INDIRECT_TEMP_ADDR:
 347         case PIPE_SHADER_CAP_INDIRECT_CONST_ADDR:
 348         case PIPE_SHADER_CAP_SUBROUTINES:
 349         case PIPE_SHADER_CAP_INTEGERS:
 350         case PIPE_SHADER_CAP_TGSI_DROUND_SUPPORTED:
 351         case PIPE_SHADER_CAP_TGSI_DFRACEXP_DLDEXP_SUPPORTED:
 352         case PIPE_SHADER_CAP_TGSI_FMA_SUPPORTED:
 353         case PIPE_SHADER_CAP_MAX_SHADER_BUFFERS:
 354         case PIPE_SHADER_CAP_MAX_SHADER_IMAGES:
 355         case PIPE_SHADER_CAP_LOWER_IF_THRESHOLD:
 356         case PIPE_SHADER_CAP_TGSI_SKIP_MERGE_REGISTERS:
 357             return 0;
 358         case PIPE_SHADER_CAP_MAX_UNROLL_ITERATIONS_HINT:
 359             return 32;
 360         case PIPE_SHADER_CAP_PREFERRED_IR:
 361             return PIPE_SHADER_IR_TGSI;
 362         case PIPE_SHADER_CAP_SUPPORTED_IRS:
 363             return 0;
 364         }
 365         break;
 366     case PIPE_SHADER_VERTEX:
 367         switch (param)
 368         {
 369         case PIPE_SHADER_CAP_MAX_TEXTURE_SAMPLERS:
 370         case PIPE_SHADER_CAP_MAX_SAMPLER_VIEWS:
 371         case PIPE_SHADER_CAP_SUBROUTINES:
 372             return 0;
 373         default:;
 374         }
 375
 376         if (!r300screen->caps.has_tcl) {
 377             return draw_get_shader_param(shader, param);
 378         }
 379
 380         switch (param)
 381         {
 382         case PIPE_SHADER_CAP_MAX_INSTRUCTIONS:
 383         case PIPE_SHADER_CAP_MAX_ALU_INSTRUCTIONS:
 384             return is_r500 ? 1024 : 256;
 385         case PIPE_SHADER_CAP_MAX_CONTROL_FLOW_DEPTH:
 386             return is_r500 ? 4 : 0; /* For loops; not sure about conditionals. */
 387         case PIPE_SHADER_CAP_MAX_INPUTS:
 388             return 16;
 389         case PIPE_SHADER_CAP_MAX_OUTPUTS:
 390             return 10;
 391         case PIPE_SHADER_CAP_MAX_CONST_BUFFER_SIZE:
 392             return 256 * sizeof(float[4]);
 393         case PIPE_SHADER_CAP_MAX_CONST_BUFFERS:
 394             return 1;
 395         case PIPE_SHADER_CAP_MAX_TEMPS:
 396             return 32;
 397         case PIPE_SHADER_CAP_INDIRECT_CONST_ADDR:
 398         case PIPE_SHADER_CAP_TGSI_ANY_INOUT_DECL_RANGE:
 399             return 1;
 400         case PIPE_SHADER_CAP_MAX_TEX_INSTRUCTIONS:
 401         case PIPE_SHADER_CAP_MAX_TEX_INDIRECTIONS:
 402         case PIPE_SHADER_CAP_TGSI_CONT_SUPPORTED:
 403         case PIPE_SHADER_CAP_TGSI_SQRT_SUPPORTED:
 404         case PIPE_SHADER_CAP_INDIRECT_INPUT_ADDR:
 405         case PIPE_SHADER_CAP_INDIRECT_OUTPUT_ADDR:
 406         case PIPE_SHADER_CAP_INDIRECT_TEMP_ADDR:
 407         case PIPE_SHADER_CAP_SUBROUTINES:
 408         case PIPE_SHADER_CAP_INTEGERS:
 409         case PIPE_SHADER_CAP_MAX_TEXTURE_SAMPLERS:
 410         case PIPE_SHADER_CAP_MAX_SAMPLER_VIEWS:
 411         case PIPE_SHADER_CAP_TGSI_DROUND_SUPPORTED:
 412         case PIPE_SHADER_CAP_TGSI_DFRACEXP_DLDEXP_SUPPORTED:
 413         case PIPE_SHADER_CAP_TGSI_FMA_SUPPORTED:
 414         case PIPE_SHADER_CAP_MAX_SHADER_BUFFERS:
 415         case PIPE_SHADER_CAP_MAX_SHADER_IMAGES:
 416         case PIPE_SHADER_CAP_LOWER_IF_THRESHOLD:
 417         case PIPE_SHADER_CAP_TGSI_SKIP_MERGE_REGISTERS:
 418             return 0;
 419         case PIPE_SHADER_CAP_MAX_UNROLL_ITERATIONS_HINT:
 420             return 32;
 421         case PIPE_SHADER_CAP_PREFERRED_IR:
 422             return PIPE_SHADER_IR_TGSI;
 423         case PIPE_SHADER_CAP_SUPPORTED_IRS:
 424             return 0;
 425         }
 426         break;
 427     default:
 428         ; /* nothing */
 429     }
 430     return 0;
 431 }
 432
 433 static float r300_get_paramf(struct pipe_screen* pscreen,
 434                              enum pipe_capf param)
 435 {
 436     struct r300_screen* r300screen = r300_screen(pscreen);
 437
 438     switch (param) {
 439         case PIPE_CAPF_MAX_LINE_WIDTH:
 440         case PIPE_CAPF_MAX_LINE_WIDTH_AA:
 441         case PIPE_CAPF_MAX_POINT_WIDTH:
 442         case PIPE_CAPF_MAX_POINT_WIDTH_AA:
 443             /* The maximum dimensions of the colorbuffer are our practical
 444              * rendering limits. 2048 pixels should be enough for anybody. */
 445             if (r300screen->caps.is_r500) {
 446                 return 4096.0f;
 447             } else if (r300screen->caps.is_r400) {
 448                 return 4021.0f;
 449             } else {
 450                 return 2560.0f;
 451             }
 452         case PIPE_CAPF_MAX_TEXTURE_ANISOTROPY:
 453             return 16.0f;
 454         case PIPE_CAPF_MAX_TEXTURE_LOD_BIAS:
 455             return 16.0f;
 456         case PIPE_CAPF_GUARD_BAND_LEFT:
 457         case PIPE_CAPF_GUARD_BAND_TOP:
 458         case PIPE_CAPF_GUARD_BAND_RIGHT:
 459         case PIPE_CAPF_GUARD_BAND_BOTTOM:
 460             return 0.0f;
 461         default:
 462             debug_printf("r300: Warning: Unknown CAP %d in get_paramf.\n",
 463                          param);
 464             return 0.0f;
 465     }
 466 }
 467
 468 static int r300_get_video_param(struct pipe_screen *screen,
 469                                 enum pipe_video_profile profile,
 470                                 enum pipe_video_entrypoint entrypoint,
 471                                 enum pipe_video_cap param)
 472 {
 473    switch (param) {
 474       case PIPE_VIDEO_CAP_SUPPORTED:
 475          return vl_profile_supported(screen, profile, entrypoint);
 476       case PIPE_VIDEO_CAP_NPOT_TEXTURES:
 477          return 0;
 478       case PIPE_VIDEO_CAP_MAX_WIDTH:
 479       case PIPE_VIDEO_CAP_MAX_HEIGHT:
 480          return vl_video_buffer_max_size(screen);
 481       case PIPE_VIDEO_CAP_PREFERED_FORMAT:
 482          return PIPE_FORMAT_NV12;
 483       case PIPE_VIDEO_CAP_PREFERS_INTERLACED:
 484          return false;
 485       case PIPE_VIDEO_CAP_SUPPORTS_INTERLACED:
 486          return false;
 487       case PIPE_VIDEO_CAP_SUPPORTS_PROGRESSIVE:
 488          return true;
 489       case PIPE_VIDEO_CAP_MAX_LEVEL:
 490          return vl_level_supported(screen, profile);
 491       default:
 492          return 0;
 493    }
 494 }
 495
 496 /**
 497  * Whether the format matches:
 498  *   PIPE_FORMAT_?10?10?10?2_UNORM
 499  */
 500 static inline boolean
 501 util_format_is_rgba1010102_variant(const struct util_format_description *desc)
 502 {
 503    static const unsigned size[4] = {10, 10, 10, 2};
 504    unsigned chan;
 505
 506    if (desc->block.width != 1 ||
 507        desc->block.height != 1 ||
 508        desc->block.bits != 32)
 509       return FALSE;
 510
 511    for (chan = 0; chan < 4; ++chan) {
 512       if(desc->channel[chan].type != UTIL_FORMAT_TYPE_UNSIGNED &&
 513          desc->channel[chan].type != UTIL_FORMAT_TYPE_VOID)
 514          return FALSE;
 515       if (desc->channel[chan].size != size[chan])
 516          return FALSE;
 517    }
 518
 519    return TRUE;
 520 }
 521
 522 static bool r300_is_blending_supported(struct r300_screen *rscreen,
 523                                        enum pipe_format format)
 524 {
 525     int c;
 526     const struct util_format_description *desc =
 527         util_format_description(format);
 528
 529     if (desc->layout != UTIL_FORMAT_LAYOUT_PLAIN)
 530         return false;
 531
 532     c = util_format_get_first_non_void_channel(format);
 533
 534     /* RGBA16F */
 535     if (rscreen->caps.is_r500 &&
 536         desc->nr_channels == 4 &&
 537         desc->channel[c].size == 16 &&
 538         desc->channel[c].type == UTIL_FORMAT_TYPE_FLOAT)
 539         return true;
 540
 541     if (desc->channel[c].normalized &&
 542         desc->channel[c].type == UTIL_FORMAT_TYPE_UNSIGNED &&
 543         desc->channel[c].size >= 4 &&
 544         desc->channel[c].size <= 10) {
 545         /* RGB10_A2, RGBA8, RGB5_A1, RGBA4, RGB565 */
 546         if (desc->nr_channels >= 3)
 547             return true;
 548
 549         if (format == PIPE_FORMAT_R8G8_UNORM)
 550             return true;
 551
 552         /* R8, I8, L8, A8 */
 553         if (desc->nr_channels == 1)
 554             return true;
 555     }
 556
 557     return false;
 558 }
 559
 560 static boolean r300_is_format_supported(struct pipe_screen* screen,
 561                                         enum pipe_format format,
 562                                         enum pipe_texture_target target,
 563                                         unsigned sample_count,
 564                                         unsigned usage)
 565 {
 566     uint32_t retval = 0;
 567     boolean is_r500 = r300_screen(screen)->caps.is_r500;
 568     boolean is_r400 = r300_screen(screen)->caps.is_r400;
 569     boolean is_color2101010 = format == PIPE_FORMAT_R10G10B10A2_UNORM ||
 570                               format == PIPE_FORMAT_R10G10B10X2_SNORM ||
 571                               format == PIPE_FORMAT_B10G10R10A2_UNORM ||
 572                               format == PIPE_FORMAT_B10G10R10X2_UNORM ||
 573                               format == PIPE_FORMAT_R10SG10SB10SA2U_NORM;
 574     boolean is_ati1n = format == PIPE_FORMAT_RGTC1_UNORM ||
 575                        format == PIPE_FORMAT_RGTC1_SNORM ||
 576                        format == PIPE_FORMAT_LATC1_UNORM ||
 577                        format == PIPE_FORMAT_LATC1_SNORM;
 578     boolean is_ati2n = format == PIPE_FORMAT_RGTC2_UNORM ||
 579                        format == PIPE_FORMAT_RGTC2_SNORM ||
 580                        format == PIPE_FORMAT_LATC2_UNORM ||
 581                        format == PIPE_FORMAT_LATC2_SNORM;
 582     boolean is_half_float = format == PIPE_FORMAT_R16_FLOAT ||
 583                             format == PIPE_FORMAT_R16G16_FLOAT ||
 584                             format == PIPE_FORMAT_R16G16B16_FLOAT ||
 585                             format == PIPE_FORMAT_R16G16B16A16_FLOAT ||
 586                             format == PIPE_FORMAT_R16G16B16X16_FLOAT;
 587     const struct util_format_description *desc;
 588
 589     if (!util_format_is_supported(format, usage))
 590        return FALSE;
 591
 592     /* Check multisampling support. */
 593     switch (sample_count) {
 594         case 0:
 595         case 1:
 596             break;
 597         case 2:
 598         case 4:
 599         case 6:
 600             /* No texturing and scanout. */
 601             if (usage & (PIPE_BIND_SAMPLER_VIEW |
 602                          PIPE_BIND_DISPLAY_TARGET |
 603                          PIPE_BIND_SCANOUT)) {
 604                 return FALSE;
 605             }
 606
 607             desc = util_format_description(format);
 608
 609             if (is_r500) {
 610                 /* Only allow depth/stencil, RGBA8, RGBA1010102, RGBA16F. */
 611                 if (!util_format_is_depth_or_stencil(format) &&
 612                     !util_format_is_rgba8_variant(desc) &&
 613                     !util_format_is_rgba1010102_variant(desc) &&
 614                     format != PIPE_FORMAT_R16G16B16A16_FLOAT &&
 615                     format != PIPE_FORMAT_R16G16B16X16_FLOAT) {
 616                     return FALSE;
 617                 }
 618             } else {
 619                 /* Only allow depth/stencil, RGBA8. */
 620                 if (!util_format_is_depth_or_stencil(format) &&
 621                     !util_format_is_rgba8_variant(desc)) {
 622                     return FALSE;
 623                 }
 624             }
 625             break;
 626         default:
 627             return FALSE;
 628     }
 629
 630     /* Check sampler format support. */
 631     if ((usage & PIPE_BIND_SAMPLER_VIEW) &&
 632         /* these two are broken for an unknown reason */
 633         format != PIPE_FORMAT_R8G8B8X8_SNORM &&
 634         format != PIPE_FORMAT_R16G16B16X16_SNORM &&
 635         /* ATI1N is r5xx-only. */
 636         (is_r500 || !is_ati1n) &&
 637         /* ATI2N is supported on r4xx-r5xx. */
 638         (is_r400 || is_r500 || !is_ati2n) &&
 639         r300_is_sampler_format_supported(format)) {
 640         retval |= PIPE_BIND_SAMPLER_VIEW;
 641     }
 642
 643     /* Check colorbuffer format support. */
 644     if ((usage & (PIPE_BIND_RENDER_TARGET |
 645                   PIPE_BIND_DISPLAY_TARGET |
 646                   PIPE_BIND_SCANOUT |
 647                   PIPE_BIND_SHARED |
 648                   PIPE_BIND_BLENDABLE)) &&
 649         /* 2101010 cannot be rendered to on non-r5xx. */
 650         (!is_color2101010 || is_r500) &&
 651         r300_is_colorbuffer_format_supported(format)) {
 652         retval |= usage &
 653             (PIPE_BIND_RENDER_TARGET |
 654              PIPE_BIND_DISPLAY_TARGET |
 655              PIPE_BIND_SCANOUT |
 656              PIPE_BIND_SHARED);
 657
 658         if (r300_is_blending_supported(r300_screen(screen), format)) {
 659             retval |= usage & PIPE_BIND_BLENDABLE;
 660         }
 661     }
 662
 663     /* Check depth-stencil format support. */
 664     if (usage & PIPE_BIND_DEPTH_STENCIL &&
 665         r300_is_zs_format_supported(format)) {
 666         retval |= PIPE_BIND_DEPTH_STENCIL;
 667     }
 668
 669     /* Check vertex buffer format support. */
 670     if (usage & PIPE_BIND_VERTEX_BUFFER) {
 671         if (r300_screen(screen)->caps.has_tcl) {
 672             /* Half float is supported on >= R400. */
 673             if ((is_r400 || is_r500 || !is_half_float) &&
 674                 r300_translate_vertex_data_type(format) != R300_INVALID_FORMAT) {
 675                 retval |= PIPE_BIND_VERTEX_BUFFER;
 676             }
 677         } else {
 678             /* SW TCL */
 679             if (!util_format_is_pure_integer(format)) {
 680                 retval |= PIPE_BIND_VERTEX_BUFFER;
 681             }
 682         }
 683     }
 684
 685     return retval == usage;
 686 }
 687
 688 static void r300_destroy_screen(struct pipe_screen* pscreen)
 689 {
 690     struct r300_screen* r300screen = r300_screen(pscreen);
 691     struct radeon_winsys *rws = radeon_winsys(pscreen);
 692
 693     if (rws && !rws->unref(rws))
 694       return;
 695
 696     mtx_destroy(&r300screen->cmask_mutex);
 697     slab_destroy_parent(&r300screen->pool_transfers);
 698
 699     if (rws)
 700       rws->destroy(rws);
 701
 702     FREE(r300screen);
 703 }
 704
 705 static void r300_fence_reference(struct pipe_screen *screen,
 706                                  struct pipe_fence_handle **ptr,
 707                                  struct pipe_fence_handle *fence)
 708 {
 709     struct radeon_winsys *rws = r300_screen(screen)->rws;
 710
 711     rws->fence_reference(ptr, fence);
 712 }
 713
 714 static boolean r300_fence_finish(struct pipe_screen *screen,
 715                                  struct pipe_context *ctx,
 716                                  struct pipe_fence_handle *fence,
 717                                  uint64_t timeout)
 718 {
 719     struct radeon_winsys *rws = r300_screen(screen)->rws;
 720
 721     return rws->fence_wait(rws, fence, timeout);
 722 }
 723
 724 struct pipe_screen* r300_screen_create(struct radeon_winsys *rws)
 725 {
 726     struct r300_screen *r300screen = CALLOC_STRUCT(r300_screen);
 727
 728     if (!r300screen) {
 729         FREE(r300screen);
 730         return NULL;
 731     }
 732
 733     rws->query_info(rws, &r300screen->info);
 734
 735     r300_init_debug(r300screen);
 736     r300_parse_chipset(r300screen->info.pci_id, &r300screen->caps);
 737
 738     if (SCREEN_DBG_ON(r300screen, DBG_NO_ZMASK))
 739         r300screen->caps.zmask_ram = 0;
 740     if (SCREEN_DBG_ON(r300screen, DBG_NO_HIZ))
 741         r300screen->caps.hiz_ram = 0;
 742
 743     r300screen->rws = rws;
 744     r300screen->screen.destroy = r300_destroy_screen;
 745     r300screen->screen.get_name = r300_get_name;
 746     r300screen->screen.get_vendor = r300_get_vendor;
 747     r300screen->screen.get_device_vendor = r300_get_device_vendor;
 748     r300screen->screen.get_param = r300_get_param;
 749     r300screen->screen.get_shader_param = r300_get_shader_param;
 750     r300screen->screen.get_paramf = r300_get_paramf;
 751     r300screen->screen.get_video_param = r300_get_video_param;
 752     r300screen->screen.is_format_supported = r300_is_format_supported;
 753     r300screen->screen.is_video_format_supported = vl_video_buffer_is_format_supported;
 754     r300screen->screen.context_create = r300_create_context;
 755     r300screen->screen.fence_reference = r300_fence_reference;
 756     r300screen->screen.fence_finish = r300_fence_finish;
 757
 758     r300_init_screen_resource_functions(r300screen);
 759
 760     slab_create_parent(&r300screen->pool_transfers, sizeof(struct pipe_transfer), 64);
 761
 762     util_format_s3tc_init();
 763     (void) mtx_init(&r300screen->cmask_mutex, mtx_plain);
 764
 765     return &r300screen->screen;
 766 }