src/gallium/drivers/r300/r300_screen.c

   1 /*
   2  * Copyright 2008 Corbin Simpson <MostAwesomeDude@gmail.com>
   3  * Copyright 2010 Marek Olšák <maraeo@gmail.com>
   4  *
   5  * Permission is hereby granted, free of charge, to any person obtaining a
   6  * copy of this software and associated documentation files (the "Software"),
   7  * to deal in the Software without restriction, including without limitation
   8  * on the rights to use, copy, modify, merge, publish, distribute, sub
   9  * license, and/or sell copies of the Software, and to permit persons to whom
  10  * the Software is furnished to do so, subject to the following conditions:
  11  *
  12  * The above copyright notice and this permission notice (including the next
  13  * paragraph) shall be included in all copies or substantial portions of the
  14  * Software.
  15  *
  16  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  17  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  18  * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
  19  * THE AUTHOR(S) AND/OR THEIR SUPPLIERS BE LIABLE FOR ANY CLAIM,
  20  * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
  21  * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
  22  * USE OR OTHER DEALINGS IN THE SOFTWARE. */
  23
  24 #include "util/u_format.h"
  25 #include "util/u_format_s3tc.h"
  26 #include "util/u_memory.h"
  27 #include "os/os_time.h"
  28 #include "vl/vl_decoder.h"
  29 #include "vl/vl_video_buffer.h"
  30
  31 #include "r300_context.h"
  32 #include "r300_texture.h"
  33 #include "r300_screen_buffer.h"
  34 #include "r300_state_inlines.h"
  35 #include "r300_public.h"
  36
  37 #include "draw/draw_context.h"
  38
  39 /* Return the identifier behind whom the brave coders responsible for this
  40  * amalgamation of code, sweat, and duct tape, routinely obscure their names.
  41  *
  42  * ...I should have just put "Corbin Simpson", but I'm not that cool.
  43  *
  44  * (Or egotistical. Yet.) */
  45 static const char* r300_get_vendor(struct pipe_screen* pscreen)
  46 {
  47     return "X.Org R300 Project";
  48 }
  49
  50 static const char* r300_get_device_vendor(struct pipe_screen* pscreen)
  51 {
  52     return "ATI";
  53 }
  54
  55 static const char* chip_families[] = {
  56     "unknown",
  57     "ATI R300",
  58     "ATI R350",
  59     "ATI RV350",
  60     "ATI RV370",
  61     "ATI RV380",
  62     "ATI RS400",
  63     "ATI RC410",
  64     "ATI RS480",
  65     "ATI R420",
  66     "ATI R423",
  67     "ATI R430",
  68     "ATI R480",
  69     "ATI R481",
  70     "ATI RV410",
  71     "ATI RS600",
  72     "ATI RS690",
  73     "ATI RS740",
  74     "ATI RV515",
  75     "ATI R520",
  76     "ATI RV530",
  77     "ATI R580",
  78     "ATI RV560",
  79     "ATI RV570"
  80 };
  81
  82 static const char* r300_get_name(struct pipe_screen* pscreen)
  83 {
  84     struct r300_screen* r300screen = r300_screen(pscreen);
  85
  86     return chip_families[r300screen->caps.family];
  87 }
  88
  89 static int r300_get_param(struct pipe_screen* pscreen, enum pipe_cap param)
  90 {
  91     struct r300_screen* r300screen = r300_screen(pscreen);
  92     boolean is_r500 = r300screen->caps.is_r500;
  93
  94     switch (param) {
  95         /* Supported features (boolean caps). */
  96         case PIPE_CAP_NPOT_TEXTURES:
  97         case PIPE_CAP_MIXED_FRAMEBUFFER_SIZES:
  98         case PIPE_CAP_MIXED_COLOR_DEPTH_BITS:
  99         case PIPE_CAP_TWO_SIDED_STENCIL:
 100         case PIPE_CAP_ANISOTROPIC_FILTER:
 101         case PIPE_CAP_POINT_SPRITE:
 102         case PIPE_CAP_OCCLUSION_QUERY:
 103         case PIPE_CAP_TEXTURE_SHADOW_MAP:
 104         case PIPE_CAP_TEXTURE_MIRROR_CLAMP:
 105         case PIPE_CAP_BLEND_EQUATION_SEPARATE:
 106         case PIPE_CAP_VERTEX_ELEMENT_INSTANCE_DIVISOR:
 107         case PIPE_CAP_TGSI_FS_COORD_ORIGIN_UPPER_LEFT:
 108         case PIPE_CAP_TGSI_FS_COORD_PIXEL_CENTER_HALF_INTEGER:
 109         case PIPE_CAP_CONDITIONAL_RENDER:
 110         case PIPE_CAP_TEXTURE_BARRIER:
 111         case PIPE_CAP_TGSI_CAN_COMPACT_CONSTANTS:
 112         case PIPE_CAP_USER_CONSTANT_BUFFERS:
 113         case PIPE_CAP_PREFER_BLIT_BASED_TEXTURE_TRANSFER:
 114         case PIPE_CAP_BUFFER_MAP_PERSISTENT_COHERENT:
 115         case PIPE_CAP_CLIP_HALFZ:
 116         case PIPE_CAP_ALLOW_MAPPED_BUFFERS_DURING_EXECUTION:
 117             return 1;
 118
 119         case PIPE_CAP_MIN_MAP_BUFFER_ALIGNMENT:
 120             return R300_BUFFER_ALIGNMENT;
 121
 122         case PIPE_CAP_CONSTANT_BUFFER_OFFSET_ALIGNMENT:
 123             return 16;
 124
 125         case PIPE_CAP_GLSL_FEATURE_LEVEL:
 126             return 120;
 127
 128         /* r300 cannot do swizzling of compressed textures. Supported otherwise. */
 129         case PIPE_CAP_TEXTURE_SWIZZLE:
 130             return util_format_s3tc_enabled ? r300screen->caps.dxtc_swizzle : 1;
 131
 132         /* We don't support color clamping on r500, so that we can use color
 133          * intepolators for generic varyings. */
 134         case PIPE_CAP_VERTEX_COLOR_CLAMPED:
 135             return !is_r500;
 136
 137         /* Supported on r500 only. */
 138         case PIPE_CAP_VERTEX_COLOR_UNCLAMPED:
 139         case PIPE_CAP_MIXED_COLORBUFFER_FORMATS:
 140         case PIPE_CAP_SM3:
 141             return is_r500 ? 1 : 0;
 142
 143         /* Unsupported features. */
 144         case PIPE_CAP_QUERY_TIME_ELAPSED:
 145         case PIPE_CAP_QUERY_PIPELINE_STATISTICS:
 146         case PIPE_CAP_MAX_DUAL_SOURCE_RENDER_TARGETS:
 147         case PIPE_CAP_INDEP_BLEND_ENABLE:
 148         case PIPE_CAP_INDEP_BLEND_FUNC:
 149         case PIPE_CAP_DEPTH_CLIP_DISABLE:
 150         case PIPE_CAP_SHADER_STENCIL_EXPORT:
 151         case PIPE_CAP_MAX_TEXTURE_ARRAY_LAYERS:
 152         case PIPE_CAP_TGSI_INSTANCEID:
 153         case PIPE_CAP_TGSI_FS_COORD_ORIGIN_LOWER_LEFT:
 154         case PIPE_CAP_TGSI_FS_COORD_PIXEL_CENTER_INTEGER:
 155         case PIPE_CAP_SEAMLESS_CUBE_MAP:
 156         case PIPE_CAP_SEAMLESS_CUBE_MAP_PER_TEXTURE:
 157         case PIPE_CAP_MIN_TEXEL_OFFSET:
 158         case PIPE_CAP_MAX_TEXEL_OFFSET:
 159         case PIPE_CAP_MIN_TEXTURE_GATHER_OFFSET:
 160         case PIPE_CAP_MAX_TEXTURE_GATHER_OFFSET:
 161         case PIPE_CAP_MAX_STREAM_OUTPUT_BUFFERS:
 162         case PIPE_CAP_MAX_STREAM_OUTPUT_SEPARATE_COMPONENTS:
 163         case PIPE_CAP_MAX_STREAM_OUTPUT_INTERLEAVED_COMPONENTS:
 164         case PIPE_CAP_MAX_GEOMETRY_OUTPUT_VERTICES:
 165         case PIPE_CAP_MAX_GEOMETRY_TOTAL_OUTPUT_COMPONENTS:
 166         case PIPE_CAP_MAX_VERTEX_STREAMS:
 167         case PIPE_CAP_STREAM_OUTPUT_PAUSE_RESUME:
 168         case PIPE_CAP_STREAM_OUTPUT_INTERLEAVE_BUFFERS:
 169         case PIPE_CAP_FRAGMENT_COLOR_CLAMPED:
 170         case PIPE_CAP_QUADS_FOLLOW_PROVOKING_VERTEX_CONVENTION:
 171         case PIPE_CAP_COMPUTE:
 172         case PIPE_CAP_START_INSTANCE:
 173         case PIPE_CAP_QUERY_TIMESTAMP:
 174         case PIPE_CAP_TEXTURE_MULTISAMPLE:
 175         case PIPE_CAP_CUBE_MAP_ARRAY:
 176         case PIPE_CAP_TEXTURE_BUFFER_OBJECTS:
 177         case PIPE_CAP_TEXTURE_BUFFER_OFFSET_ALIGNMENT:
 178         case PIPE_CAP_TEXTURE_BORDER_COLOR_QUIRK:
 179         case PIPE_CAP_MAX_TEXTURE_BUFFER_SIZE:
 180         case PIPE_CAP_TGSI_VS_LAYER_VIEWPORT:
 181         case PIPE_CAP_MAX_TEXTURE_GATHER_COMPONENTS:
 182         case PIPE_CAP_TEXTURE_GATHER_SM5:
 183         case PIPE_CAP_TEXTURE_QUERY_LOD:
 184         case PIPE_CAP_FAKE_SW_MSAA:
 185         case PIPE_CAP_SAMPLE_SHADING:
 186         case PIPE_CAP_TEXTURE_GATHER_OFFSETS:
 187         case PIPE_CAP_DRAW_INDIRECT:
 188         case PIPE_CAP_MULTI_DRAW_INDIRECT:
 189         case PIPE_CAP_MULTI_DRAW_INDIRECT_PARAMS:
 190         case PIPE_CAP_TGSI_FS_FINE_DERIVATIVE:
 191         case PIPE_CAP_CONDITIONAL_RENDER_INVERTED:
 192         case PIPE_CAP_SAMPLER_VIEW_TARGET:
 193         case PIPE_CAP_VERTEXID_NOBASE:
 194         case PIPE_CAP_POLYGON_OFFSET_CLAMP:
 195         case PIPE_CAP_MULTISAMPLE_Z_RESOLVE:
 196         case PIPE_CAP_RESOURCE_FROM_USER_MEMORY:
 197         case PIPE_CAP_DEVICE_RESET_STATUS_QUERY:
 198         case PIPE_CAP_MAX_SHADER_PATCH_VARYINGS:
 199         case PIPE_CAP_TEXTURE_FLOAT_LINEAR:
 200         case PIPE_CAP_TEXTURE_HALF_FLOAT_LINEAR:
 201         case PIPE_CAP_DEPTH_BOUNDS_TEST:
 202         case PIPE_CAP_TGSI_TXQS:
 203         case PIPE_CAP_FORCE_PERSAMPLE_INTERP:
 204         case PIPE_CAP_SHAREABLE_SHADERS:
 205         case PIPE_CAP_COPY_BETWEEN_COMPRESSED_AND_PLAIN_FORMATS:
 206         case PIPE_CAP_CLEAR_TEXTURE:
 207         case PIPE_CAP_DRAW_PARAMETERS:
 208         case PIPE_CAP_TGSI_PACK_HALF_FLOAT:
 209         case PIPE_CAP_TGSI_FS_POSITION_IS_SYSVAL:
 210         case PIPE_CAP_TGSI_FS_FACE_IS_INTEGER_SYSVAL:
 211         case PIPE_CAP_SHADER_BUFFER_OFFSET_ALIGNMENT:
 212         case PIPE_CAP_INVALIDATE_BUFFER:
 213         case PIPE_CAP_GENERATE_MIPMAP:
 214         case PIPE_CAP_STRING_MARKER:
 215         case PIPE_CAP_BUFFER_SAMPLER_VIEW_RGBA_ONLY:
 216         case PIPE_CAP_SURFACE_REINTERPRET_BLOCKS:
 217         case PIPE_CAP_QUERY_BUFFER_OBJECT:
 218         case PIPE_CAP_QUERY_MEMORY_INFO:
 219         case PIPE_CAP_FRAMEBUFFER_NO_ATTACHMENT:
 220         case PIPE_CAP_ROBUST_BUFFER_ACCESS_BEHAVIOR:
 221         case PIPE_CAP_CULL_DISTANCE:
 222         case PIPE_CAP_PRIMITIVE_RESTART_FOR_PATCHES:
 223         case PIPE_CAP_TGSI_VOTE:
 224         case PIPE_CAP_MAX_WINDOW_RECTANGLES:
 225         case PIPE_CAP_POLYGON_OFFSET_UNITS_UNSCALED:
 226         case PIPE_CAP_VIEWPORT_SUBPIXEL_BITS:
 227         case PIPE_CAP_TGSI_ARRAY_COMPONENTS:
 228         case PIPE_CAP_TGSI_CAN_READ_OUTPUTS:
 229         case PIPE_CAP_NATIVE_FENCE_FD:
 230         case PIPE_CAP_GLSL_OPTIMIZE_CONSERVATIVELY:
 231         case PIPE_CAP_TGSI_FS_FBFETCH:
 232         case PIPE_CAP_TGSI_MUL_ZERO_WINS:
 233         case PIPE_CAP_DOUBLES:
 234         case PIPE_CAP_INT64:
 235         case PIPE_CAP_INT64_DIVMOD:
 236         case PIPE_CAP_TGSI_TEX_TXF_LZ:
 237         case PIPE_CAP_TGSI_CLOCK:
 238         case PIPE_CAP_POLYGON_MODE_FILL_RECTANGLE:
 239         case PIPE_CAP_SPARSE_BUFFER_PAGE_SIZE:
 240         case PIPE_CAP_TGSI_BALLOT:
 241         case PIPE_CAP_TGSI_TES_LAYER_VIEWPORT:
 242         case PIPE_CAP_CAN_BIND_CONST_BUFFER_AS_VERTEX:
 243         case PIPE_CAP_POST_DEPTH_COVERAGE:
 244         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             return 0;
 249
 250         /* SWTCL-only features. */
 251         case PIPE_CAP_PRIMITIVE_RESTART:
 252         case PIPE_CAP_USER_VERTEX_BUFFERS:
 253         case PIPE_CAP_TGSI_VS_WINDOW_SPACE_POSITION:
 254             return !r300screen->caps.has_tcl;
 255
 256         /* HWTCL-only features / limitations. */
 257         case PIPE_CAP_VERTEX_BUFFER_OFFSET_4BYTE_ALIGNED_ONLY:
 258         case PIPE_CAP_VERTEX_BUFFER_STRIDE_4BYTE_ALIGNED_ONLY:
 259         case PIPE_CAP_VERTEX_ELEMENT_SRC_OFFSET_4BYTE_ALIGNED_ONLY:
 260             return r300screen->caps.has_tcl;
 261         case PIPE_CAP_TGSI_TEXCOORD:
 262             return 0;
 263
 264         /* Texturing. */
 265         case PIPE_CAP_MAX_TEXTURE_2D_LEVELS:
 266         case PIPE_CAP_MAX_TEXTURE_3D_LEVELS:
 267         case PIPE_CAP_MAX_TEXTURE_CUBE_LEVELS:
 268             /* 13 == 4096, 12 == 2048 */
 269             return is_r500 ? 13 : 12;
 270
 271         /* Render targets. */
 272         case PIPE_CAP_MAX_RENDER_TARGETS:
 273             return 4;
 274         case PIPE_CAP_ENDIANNESS:
 275             return PIPE_ENDIAN_LITTLE;
 276
 277         case PIPE_CAP_MAX_VIEWPORTS:
 278             return 1;
 279
 280         case PIPE_CAP_MAX_VERTEX_ATTRIB_STRIDE:
 281             return 2048;
 282
 283         case PIPE_CAP_VENDOR_ID:
 284                 return 0x1002;
 285         case PIPE_CAP_DEVICE_ID:
 286                 return r300screen->info.pci_id;
 287         case PIPE_CAP_ACCELERATED:
 288                 return 1;
 289         case PIPE_CAP_VIDEO_MEMORY:
 290                 return r300screen->info.vram_size >> 20;
 291         case PIPE_CAP_UMA:
 292                 return 0;
 293         case PIPE_CAP_PCI_GROUP:
 294             return r300screen->info.pci_domain;
 295         case PIPE_CAP_PCI_BUS:
 296             return r300screen->info.pci_bus;
 297         case PIPE_CAP_PCI_DEVICE:
 298             return r300screen->info.pci_dev;
 299         case PIPE_CAP_PCI_FUNCTION:
 300             return r300screen->info.pci_func;
 301     }
 302     return 0;
 303 }
 304
 305 static int r300_get_shader_param(struct pipe_screen *pscreen,
 306                                  enum pipe_shader_type shader,
 307                                  enum pipe_shader_cap param)
 308 {
 309    struct r300_screen* r300screen = r300_screen(pscreen);
 310    boolean is_r400 = r300screen->caps.is_r400;
 311    boolean is_r500 = r300screen->caps.is_r500;
 312
 313    switch (shader) {
 314     case PIPE_SHADER_FRAGMENT:
 315         switch (param)
 316         {
 317         case PIPE_SHADER_CAP_MAX_INSTRUCTIONS:
 318             return is_r500 || is_r400 ? 512 : 96;
 319         case PIPE_SHADER_CAP_MAX_ALU_INSTRUCTIONS:
 320             return is_r500 || is_r400 ? 512 : 64;
 321         case PIPE_SHADER_CAP_MAX_TEX_INSTRUCTIONS:
 322             return is_r500 || is_r400 ? 512 : 32;
 323         case PIPE_SHADER_CAP_MAX_TEX_INDIRECTIONS:
 324             return is_r500 ? 511 : 4;
 325         case PIPE_SHADER_CAP_MAX_CONTROL_FLOW_DEPTH:
 326             return is_r500 ? 64 : 0; /* Actually unlimited on r500. */
 327             /* Fragment shader limits. */
 328         case PIPE_SHADER_CAP_MAX_INPUTS:
 329             /* 2 colors + 8 texcoords are always supported
 330              * (minus fog and wpos).
 331              *
 332              * R500 has the ability to turn 3rd and 4th color into
 333              * additional texcoords but there is no two-sided color
 334              * selection then. However the facing bit can be used instead. */
 335             return 10;
 336         case PIPE_SHADER_CAP_MAX_OUTPUTS:
 337             return 4;
 338         case PIPE_SHADER_CAP_MAX_CONST_BUFFER_SIZE:
 339             return (is_r500 ? 256 : 32) * sizeof(float[4]);
 340         case PIPE_SHADER_CAP_MAX_CONST_BUFFERS:
 341         case PIPE_SHADER_CAP_TGSI_ANY_INOUT_DECL_RANGE:
 342             return 1;
 343         case PIPE_SHADER_CAP_MAX_TEMPS:
 344             return is_r500 ? 128 : is_r400 ? 64 : 32;
 345         case PIPE_SHADER_CAP_MAX_TEXTURE_SAMPLERS:
 346         case PIPE_SHADER_CAP_MAX_SAMPLER_VIEWS:
 347            return r300screen->caps.num_tex_units;
 348         case PIPE_SHADER_CAP_TGSI_CONT_SUPPORTED:
 349         case PIPE_SHADER_CAP_TGSI_SQRT_SUPPORTED:
 350         case PIPE_SHADER_CAP_INDIRECT_INPUT_ADDR:
 351         case PIPE_SHADER_CAP_INDIRECT_OUTPUT_ADDR:
 352         case PIPE_SHADER_CAP_INDIRECT_TEMP_ADDR:
 353         case PIPE_SHADER_CAP_INDIRECT_CONST_ADDR:
 354         case PIPE_SHADER_CAP_SUBROUTINES:
 355         case PIPE_SHADER_CAP_INTEGERS:
 356         case PIPE_SHADER_CAP_TGSI_DROUND_SUPPORTED:
 357         case PIPE_SHADER_CAP_TGSI_DFRACEXP_DLDEXP_SUPPORTED:
 358         case PIPE_SHADER_CAP_TGSI_FMA_SUPPORTED:
 359         case PIPE_SHADER_CAP_MAX_SHADER_BUFFERS:
 360         case PIPE_SHADER_CAP_MAX_SHADER_IMAGES:
 361         case PIPE_SHADER_CAP_LOWER_IF_THRESHOLD:
 362         case PIPE_SHADER_CAP_TGSI_SKIP_MERGE_REGISTERS:
 363             return 0;
 364         case PIPE_SHADER_CAP_MAX_UNROLL_ITERATIONS_HINT:
 365             return 32;
 366         case PIPE_SHADER_CAP_PREFERRED_IR:
 367             return PIPE_SHADER_IR_TGSI;
 368         case PIPE_SHADER_CAP_SUPPORTED_IRS:
 369             return 0;
 370         }
 371         break;
 372     case PIPE_SHADER_VERTEX:
 373         switch (param)
 374         {
 375         case PIPE_SHADER_CAP_MAX_TEXTURE_SAMPLERS:
 376         case PIPE_SHADER_CAP_MAX_SAMPLER_VIEWS:
 377         case PIPE_SHADER_CAP_SUBROUTINES:
 378             return 0;
 379         default:;
 380         }
 381
 382         if (!r300screen->caps.has_tcl) {
 383             return draw_get_shader_param(shader, param);
 384         }
 385
 386         switch (param)
 387         {
 388         case PIPE_SHADER_CAP_MAX_INSTRUCTIONS:
 389         case PIPE_SHADER_CAP_MAX_ALU_INSTRUCTIONS:
 390             return is_r500 ? 1024 : 256;
 391         case PIPE_SHADER_CAP_MAX_CONTROL_FLOW_DEPTH:
 392             return is_r500 ? 4 : 0; /* For loops; not sure about conditionals. */
 393         case PIPE_SHADER_CAP_MAX_INPUTS:
 394             return 16;
 395         case PIPE_SHADER_CAP_MAX_OUTPUTS:
 396             return 10;
 397         case PIPE_SHADER_CAP_MAX_CONST_BUFFER_SIZE:
 398             return 256 * sizeof(float[4]);
 399         case PIPE_SHADER_CAP_MAX_CONST_BUFFERS:
 400             return 1;
 401         case PIPE_SHADER_CAP_MAX_TEMPS:
 402             return 32;
 403         case PIPE_SHADER_CAP_INDIRECT_CONST_ADDR:
 404         case PIPE_SHADER_CAP_TGSI_ANY_INOUT_DECL_RANGE:
 405             return 1;
 406         case PIPE_SHADER_CAP_MAX_TEX_INSTRUCTIONS:
 407         case PIPE_SHADER_CAP_MAX_TEX_INDIRECTIONS:
 408         case PIPE_SHADER_CAP_TGSI_CONT_SUPPORTED:
 409         case PIPE_SHADER_CAP_TGSI_SQRT_SUPPORTED:
 410         case PIPE_SHADER_CAP_INDIRECT_INPUT_ADDR:
 411         case PIPE_SHADER_CAP_INDIRECT_OUTPUT_ADDR:
 412         case PIPE_SHADER_CAP_INDIRECT_TEMP_ADDR:
 413         case PIPE_SHADER_CAP_SUBROUTINES:
 414         case PIPE_SHADER_CAP_INTEGERS:
 415         case PIPE_SHADER_CAP_MAX_TEXTURE_SAMPLERS:
 416         case PIPE_SHADER_CAP_MAX_SAMPLER_VIEWS:
 417         case PIPE_SHADER_CAP_TGSI_DROUND_SUPPORTED:
 418         case PIPE_SHADER_CAP_TGSI_DFRACEXP_DLDEXP_SUPPORTED:
 419         case PIPE_SHADER_CAP_TGSI_FMA_SUPPORTED:
 420         case PIPE_SHADER_CAP_MAX_SHADER_BUFFERS:
 421         case PIPE_SHADER_CAP_MAX_SHADER_IMAGES:
 422         case PIPE_SHADER_CAP_LOWER_IF_THRESHOLD:
 423         case PIPE_SHADER_CAP_TGSI_SKIP_MERGE_REGISTERS:
 424             return 0;
 425         case PIPE_SHADER_CAP_MAX_UNROLL_ITERATIONS_HINT:
 426             return 32;
 427         case PIPE_SHADER_CAP_PREFERRED_IR:
 428             return PIPE_SHADER_IR_TGSI;
 429         case PIPE_SHADER_CAP_SUPPORTED_IRS:
 430             return 0;
 431         }
 432         break;
 433     default:
 434         ; /* nothing */
 435     }
 436     return 0;
 437 }
 438
 439 static float r300_get_paramf(struct pipe_screen* pscreen,
 440                              enum pipe_capf param)
 441 {
 442     struct r300_screen* r300screen = r300_screen(pscreen);
 443
 444     switch (param) {
 445         case PIPE_CAPF_MAX_LINE_WIDTH:
 446         case PIPE_CAPF_MAX_LINE_WIDTH_AA:
 447         case PIPE_CAPF_MAX_POINT_WIDTH:
 448         case PIPE_CAPF_MAX_POINT_WIDTH_AA:
 449             /* The maximum dimensions of the colorbuffer are our practical
 450              * rendering limits. 2048 pixels should be enough for anybody. */
 451             if (r300screen->caps.is_r500) {
 452                 return 4096.0f;
 453             } else if (r300screen->caps.is_r400) {
 454                 return 4021.0f;
 455             } else {
 456                 return 2560.0f;
 457             }
 458         case PIPE_CAPF_MAX_TEXTURE_ANISOTROPY:
 459             return 16.0f;
 460         case PIPE_CAPF_MAX_TEXTURE_LOD_BIAS:
 461             return 16.0f;
 462         case PIPE_CAPF_GUARD_BAND_LEFT:
 463         case PIPE_CAPF_GUARD_BAND_TOP:
 464         case PIPE_CAPF_GUARD_BAND_RIGHT:
 465         case PIPE_CAPF_GUARD_BAND_BOTTOM:
 466             return 0.0f;
 467         default:
 468             debug_printf("r300: Warning: Unknown CAP %d in get_paramf.\n",
 469                          param);
 470             return 0.0f;
 471     }
 472 }
 473
 474 static int r300_get_video_param(struct pipe_screen *screen,
 475                                 enum pipe_video_profile profile,
 476                                 enum pipe_video_entrypoint entrypoint,
 477                                 enum pipe_video_cap param)
 478 {
 479    switch (param) {
 480       case PIPE_VIDEO_CAP_SUPPORTED:
 481          return vl_profile_supported(screen, profile, entrypoint);
 482       case PIPE_VIDEO_CAP_NPOT_TEXTURES:
 483          return 0;
 484       case PIPE_VIDEO_CAP_MAX_WIDTH:
 485       case PIPE_VIDEO_CAP_MAX_HEIGHT:
 486          return vl_video_buffer_max_size(screen);
 487       case PIPE_VIDEO_CAP_PREFERED_FORMAT:
 488          return PIPE_FORMAT_NV12;
 489       case PIPE_VIDEO_CAP_PREFERS_INTERLACED:
 490          return false;
 491       case PIPE_VIDEO_CAP_SUPPORTS_INTERLACED:
 492          return false;
 493       case PIPE_VIDEO_CAP_SUPPORTS_PROGRESSIVE:
 494          return true;
 495       case PIPE_VIDEO_CAP_MAX_LEVEL:
 496          return vl_level_supported(screen, profile);
 497       default:
 498          return 0;
 499    }
 500 }
 501
 502 /**
 503  * Whether the format matches:
 504  *   PIPE_FORMAT_?10?10?10?2_UNORM
 505  */
 506 static inline boolean
 507 util_format_is_rgba1010102_variant(const struct util_format_description *desc)
 508 {
 509    static const unsigned size[4] = {10, 10, 10, 2};
 510    unsigned chan;
 511
 512    if (desc->block.width != 1 ||
 513        desc->block.height != 1 ||
 514        desc->block.bits != 32)
 515       return FALSE;
 516
 517    for (chan = 0; chan < 4; ++chan) {
 518       if(desc->channel[chan].type != UTIL_FORMAT_TYPE_UNSIGNED &&
 519          desc->channel[chan].type != UTIL_FORMAT_TYPE_VOID)
 520          return FALSE;
 521       if (desc->channel[chan].size != size[chan])
 522          return FALSE;
 523    }
 524
 525    return TRUE;
 526 }
 527
 528 static bool r300_is_blending_supported(struct r300_screen *rscreen,
 529                                        enum pipe_format format)
 530 {
 531     int c;
 532     const struct util_format_description *desc =
 533         util_format_description(format);
 534
 535     if (desc->layout != UTIL_FORMAT_LAYOUT_PLAIN)
 536         return false;
 537
 538     c = util_format_get_first_non_void_channel(format);
 539
 540     /* RGBA16F */
 541     if (rscreen->caps.is_r500 &&
 542         desc->nr_channels == 4 &&
 543         desc->channel[c].size == 16 &&
 544         desc->channel[c].type == UTIL_FORMAT_TYPE_FLOAT)
 545         return true;
 546
 547     if (desc->channel[c].normalized &&
 548         desc->channel[c].type == UTIL_FORMAT_TYPE_UNSIGNED &&
 549         desc->channel[c].size >= 4 &&
 550         desc->channel[c].size <= 10) {
 551         /* RGB10_A2, RGBA8, RGB5_A1, RGBA4, RGB565 */
 552         if (desc->nr_channels >= 3)
 553             return true;
 554
 555         if (format == PIPE_FORMAT_R8G8_UNORM)
 556             return true;
 557
 558         /* R8, I8, L8, A8 */
 559         if (desc->nr_channels == 1)
 560             return true;
 561     }
 562
 563     return false;
 564 }
 565
 566 static boolean r300_is_format_supported(struct pipe_screen* screen,
 567                                         enum pipe_format format,
 568                                         enum pipe_texture_target target,
 569                                         unsigned sample_count,
 570                                         unsigned usage)
 571 {
 572     uint32_t retval = 0;
 573     boolean is_r500 = r300_screen(screen)->caps.is_r500;
 574     boolean is_r400 = r300_screen(screen)->caps.is_r400;
 575     boolean is_color2101010 = format == PIPE_FORMAT_R10G10B10A2_UNORM ||
 576                               format == PIPE_FORMAT_R10G10B10X2_SNORM ||
 577                               format == PIPE_FORMAT_B10G10R10A2_UNORM ||
 578                               format == PIPE_FORMAT_B10G10R10X2_UNORM ||
 579                               format == PIPE_FORMAT_R10SG10SB10SA2U_NORM;
 580     boolean is_ati1n = format == PIPE_FORMAT_RGTC1_UNORM ||
 581                        format == PIPE_FORMAT_RGTC1_SNORM ||
 582                        format == PIPE_FORMAT_LATC1_UNORM ||
 583                        format == PIPE_FORMAT_LATC1_SNORM;
 584     boolean is_ati2n = format == PIPE_FORMAT_RGTC2_UNORM ||
 585                        format == PIPE_FORMAT_RGTC2_SNORM ||
 586                        format == PIPE_FORMAT_LATC2_UNORM ||
 587                        format == PIPE_FORMAT_LATC2_SNORM;
 588     boolean is_half_float = format == PIPE_FORMAT_R16_FLOAT ||
 589                             format == PIPE_FORMAT_R16G16_FLOAT ||
 590                             format == PIPE_FORMAT_R16G16B16_FLOAT ||
 591                             format == PIPE_FORMAT_R16G16B16A16_FLOAT ||
 592                             format == PIPE_FORMAT_R16G16B16X16_FLOAT;
 593     const struct util_format_description *desc;
 594
 595     if (!util_format_is_supported(format, usage))
 596        return FALSE;
 597
 598     /* Check multisampling support. */
 599     switch (sample_count) {
 600         case 0:
 601         case 1:
 602             break;
 603         case 2:
 604         case 4:
 605         case 6:
 606             /* No texturing and scanout. */
 607             if (usage & (PIPE_BIND_SAMPLER_VIEW |
 608                          PIPE_BIND_DISPLAY_TARGET |
 609                          PIPE_BIND_SCANOUT)) {
 610                 return FALSE;
 611             }
 612
 613             desc = util_format_description(format);
 614
 615             if (is_r500) {
 616                 /* Only allow depth/stencil, RGBA8, RGBA1010102, RGBA16F. */
 617                 if (!util_format_is_depth_or_stencil(format) &&
 618                     !util_format_is_rgba8_variant(desc) &&
 619                     !util_format_is_rgba1010102_variant(desc) &&
 620                     format != PIPE_FORMAT_R16G16B16A16_FLOAT &&
 621                     format != PIPE_FORMAT_R16G16B16X16_FLOAT) {
 622                     return FALSE;
 623                 }
 624             } else {
 625                 /* Only allow depth/stencil, RGBA8. */
 626                 if (!util_format_is_depth_or_stencil(format) &&
 627                     !util_format_is_rgba8_variant(desc)) {
 628                     return FALSE;
 629                 }
 630             }
 631             break;
 632         default:
 633             return FALSE;
 634     }
 635
 636     /* Check sampler format support. */
 637     if ((usage & PIPE_BIND_SAMPLER_VIEW) &&
 638         /* these two are broken for an unknown reason */
 639         format != PIPE_FORMAT_R8G8B8X8_SNORM &&
 640         format != PIPE_FORMAT_R16G16B16X16_SNORM &&
 641         /* ATI1N is r5xx-only. */
 642         (is_r500 || !is_ati1n) &&
 643         /* ATI2N is supported on r4xx-r5xx. */
 644         (is_r400 || is_r500 || !is_ati2n) &&
 645         r300_is_sampler_format_supported(format)) {
 646         retval |= PIPE_BIND_SAMPLER_VIEW;
 647     }
 648
 649     /* Check colorbuffer format support. */
 650     if ((usage & (PIPE_BIND_RENDER_TARGET |
 651                   PIPE_BIND_DISPLAY_TARGET |
 652                   PIPE_BIND_SCANOUT |
 653                   PIPE_BIND_SHARED |
 654                   PIPE_BIND_BLENDABLE)) &&
 655         /* 2101010 cannot be rendered to on non-r5xx. */
 656         (!is_color2101010 || is_r500) &&
 657         r300_is_colorbuffer_format_supported(format)) {
 658         retval |= usage &
 659             (PIPE_BIND_RENDER_TARGET |
 660              PIPE_BIND_DISPLAY_TARGET |
 661              PIPE_BIND_SCANOUT |
 662              PIPE_BIND_SHARED);
 663
 664         if (r300_is_blending_supported(r300_screen(screen), format)) {
 665             retval |= usage & PIPE_BIND_BLENDABLE;
 666         }
 667     }
 668
 669     /* Check depth-stencil format support. */
 670     if (usage & PIPE_BIND_DEPTH_STENCIL &&
 671         r300_is_zs_format_supported(format)) {
 672         retval |= PIPE_BIND_DEPTH_STENCIL;
 673     }
 674
 675     /* Check vertex buffer format support. */
 676     if (usage & PIPE_BIND_VERTEX_BUFFER) {
 677         if (r300_screen(screen)->caps.has_tcl) {
 678             /* Half float is supported on >= R400. */
 679             if ((is_r400 || is_r500 || !is_half_float) &&
 680                 r300_translate_vertex_data_type(format) != R300_INVALID_FORMAT) {
 681                 retval |= PIPE_BIND_VERTEX_BUFFER;
 682             }
 683         } else {
 684             /* SW TCL */
 685             if (!util_format_is_pure_integer(format)) {
 686                 retval |= PIPE_BIND_VERTEX_BUFFER;
 687             }
 688         }
 689     }
 690
 691     return retval == usage;
 692 }
 693
 694 static void r300_destroy_screen(struct pipe_screen* pscreen)
 695 {
 696     struct r300_screen* r300screen = r300_screen(pscreen);
 697     struct radeon_winsys *rws = radeon_winsys(pscreen);
 698
 699     if (rws && !rws->unref(rws))
 700       return;
 701
 702     mtx_destroy(&r300screen->cmask_mutex);
 703     slab_destroy_parent(&r300screen->pool_transfers);
 704
 705     if (rws)
 706       rws->destroy(rws);
 707
 708     FREE(r300screen);
 709 }
 710
 711 static void r300_fence_reference(struct pipe_screen *screen,
 712                                  struct pipe_fence_handle **ptr,
 713                                  struct pipe_fence_handle *fence)
 714 {
 715     struct radeon_winsys *rws = r300_screen(screen)->rws;
 716
 717     rws->fence_reference(ptr, fence);
 718 }
 719
 720 static boolean r300_fence_finish(struct pipe_screen *screen,
 721                                  struct pipe_context *ctx,
 722                                  struct pipe_fence_handle *fence,
 723                                  uint64_t timeout)
 724 {
 725     struct radeon_winsys *rws = r300_screen(screen)->rws;
 726
 727     return rws->fence_wait(rws, fence, timeout);
 728 }
 729
 730 struct pipe_screen* r300_screen_create(struct radeon_winsys *rws,
 731                                        const struct pipe_screen_config *config)
 732 {
 733     struct r300_screen *r300screen = CALLOC_STRUCT(r300_screen);
 734
 735     if (!r300screen) {
 736         FREE(r300screen);
 737         return NULL;
 738     }
 739
 740     rws->query_info(rws, &r300screen->info);
 741
 742     r300_init_debug(r300screen);
 743     r300_parse_chipset(r300screen->info.pci_id, &r300screen->caps);
 744
 745     if (SCREEN_DBG_ON(r300screen, DBG_NO_ZMASK))
 746         r300screen->caps.zmask_ram = 0;
 747     if (SCREEN_DBG_ON(r300screen, DBG_NO_HIZ))
 748         r300screen->caps.hiz_ram = 0;
 749
 750     r300screen->rws = rws;
 751     r300screen->screen.destroy = r300_destroy_screen;
 752     r300screen->screen.get_name = r300_get_name;
 753     r300screen->screen.get_vendor = r300_get_vendor;
 754     r300screen->screen.get_device_vendor = r300_get_device_vendor;
 755     r300screen->screen.get_param = r300_get_param;
 756     r300screen->screen.get_shader_param = r300_get_shader_param;
 757     r300screen->screen.get_paramf = r300_get_paramf;
 758     r300screen->screen.get_video_param = r300_get_video_param;
 759     r300screen->screen.is_format_supported = r300_is_format_supported;
 760     r300screen->screen.is_video_format_supported = vl_video_buffer_is_format_supported;
 761     r300screen->screen.context_create = r300_create_context;
 762     r300screen->screen.fence_reference = r300_fence_reference;
 763     r300screen->screen.fence_finish = r300_fence_finish;
 764
 765     r300_init_screen_resource_functions(r300screen);
 766
 767     slab_create_parent(&r300screen->pool_transfers, sizeof(struct pipe_transfer), 64);
 768
 769     util_format_s3tc_init();
 770     (void) mtx_init(&r300screen->cmask_mutex, mtx_plain);
 771
 772     return &r300screen->screen;
 773 }