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_TWO_SIDED_STENCIL:
  99         case PIPE_CAP_ANISOTROPIC_FILTER:
 100         case PIPE_CAP_POINT_SPRITE:
 101         case PIPE_CAP_OCCLUSION_QUERY:
 102         case PIPE_CAP_TEXTURE_SHADOW_MAP:
 103         case PIPE_CAP_TEXTURE_MIRROR_CLAMP:
 104         case PIPE_CAP_BLEND_EQUATION_SEPARATE:
 105         case PIPE_CAP_VERTEX_ELEMENT_INSTANCE_DIVISOR:
 106         case PIPE_CAP_TGSI_FS_COORD_ORIGIN_UPPER_LEFT:
 107         case PIPE_CAP_TGSI_FS_COORD_PIXEL_CENTER_HALF_INTEGER:
 108         case PIPE_CAP_CONDITIONAL_RENDER:
 109         case PIPE_CAP_TEXTURE_BARRIER:
 110         case PIPE_CAP_TGSI_CAN_COMPACT_CONSTANTS:
 111         case PIPE_CAP_USER_INDEX_BUFFERS:
 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_FRAGMENT_COLOR_CLAMPED:
 168         case PIPE_CAP_QUADS_FOLLOW_PROVOKING_VERTEX_CONVENTION:
 169         case PIPE_CAP_COMPUTE:
 170         case PIPE_CAP_START_INSTANCE:
 171         case PIPE_CAP_QUERY_TIMESTAMP:
 172         case PIPE_CAP_TEXTURE_MULTISAMPLE:
 173         case PIPE_CAP_CUBE_MAP_ARRAY:
 174         case PIPE_CAP_TEXTURE_BUFFER_OBJECTS:
 175         case PIPE_CAP_TEXTURE_BUFFER_OFFSET_ALIGNMENT:
 176         case PIPE_CAP_TEXTURE_BORDER_COLOR_QUIRK:
 177         case PIPE_CAP_MAX_TEXTURE_BUFFER_SIZE:
 178         case PIPE_CAP_TGSI_VS_LAYER_VIEWPORT:
 179         case PIPE_CAP_MAX_TEXTURE_GATHER_COMPONENTS:
 180         case PIPE_CAP_TEXTURE_GATHER_SM5:
 181         case PIPE_CAP_TEXTURE_QUERY_LOD:
 182         case PIPE_CAP_FAKE_SW_MSAA:
 183         case PIPE_CAP_SAMPLE_SHADING:
 184         case PIPE_CAP_TEXTURE_GATHER_OFFSETS:
 185         case PIPE_CAP_DRAW_INDIRECT:
 186         case PIPE_CAP_MULTI_DRAW_INDIRECT:
 187         case PIPE_CAP_MULTI_DRAW_INDIRECT_PARAMS:
 188         case PIPE_CAP_TGSI_FS_FINE_DERIVATIVE:
 189         case PIPE_CAP_CONDITIONAL_RENDER_INVERTED:
 190         case PIPE_CAP_SAMPLER_VIEW_TARGET:
 191         case PIPE_CAP_VERTEXID_NOBASE:
 192         case PIPE_CAP_POLYGON_OFFSET_CLAMP:
 193         case PIPE_CAP_MULTISAMPLE_Z_RESOLVE:
 194         case PIPE_CAP_RESOURCE_FROM_USER_MEMORY:
 195         case PIPE_CAP_DEVICE_RESET_STATUS_QUERY:
 196         case PIPE_CAP_MAX_SHADER_PATCH_VARYINGS:
 197         case PIPE_CAP_TEXTURE_FLOAT_LINEAR:
 198         case PIPE_CAP_TEXTURE_HALF_FLOAT_LINEAR:
 199         case PIPE_CAP_DEPTH_BOUNDS_TEST:
 200         case PIPE_CAP_TGSI_TXQS:
 201         case PIPE_CAP_FORCE_PERSAMPLE_INTERP:
 202         case PIPE_CAP_SHAREABLE_SHADERS:
 203         case PIPE_CAP_COPY_BETWEEN_COMPRESSED_AND_PLAIN_FORMATS:
 204         case PIPE_CAP_CLEAR_TEXTURE:
 205         case PIPE_CAP_DRAW_PARAMETERS:
 206         case PIPE_CAP_TGSI_PACK_HALF_FLOAT:
 207         case PIPE_CAP_TGSI_FS_POSITION_IS_SYSVAL:
 208         case PIPE_CAP_TGSI_FS_FACE_IS_INTEGER_SYSVAL:
 209         case PIPE_CAP_SHADER_BUFFER_OFFSET_ALIGNMENT:
 210             return 0;
 211
 212         /* SWTCL-only features. */
 213         case PIPE_CAP_PRIMITIVE_RESTART:
 214         case PIPE_CAP_USER_VERTEX_BUFFERS:
 215         case PIPE_CAP_TGSI_VS_WINDOW_SPACE_POSITION:
 216             return !r300screen->caps.has_tcl;
 217
 218         /* HWTCL-only features / limitations. */
 219         case PIPE_CAP_VERTEX_BUFFER_OFFSET_4BYTE_ALIGNED_ONLY:
 220         case PIPE_CAP_VERTEX_BUFFER_STRIDE_4BYTE_ALIGNED_ONLY:
 221         case PIPE_CAP_VERTEX_ELEMENT_SRC_OFFSET_4BYTE_ALIGNED_ONLY:
 222             return r300screen->caps.has_tcl;
 223         case PIPE_CAP_TGSI_TEXCOORD:
 224             return 0;
 225
 226         /* Texturing. */
 227         case PIPE_CAP_MAX_TEXTURE_2D_LEVELS:
 228         case PIPE_CAP_MAX_TEXTURE_3D_LEVELS:
 229         case PIPE_CAP_MAX_TEXTURE_CUBE_LEVELS:
 230             /* 13 == 4096, 12 == 2048 */
 231             return is_r500 ? 13 : 12;
 232
 233         /* Render targets. */
 234         case PIPE_CAP_MAX_RENDER_TARGETS:
 235             return 4;
 236         case PIPE_CAP_ENDIANNESS:
 237             return PIPE_ENDIAN_LITTLE;
 238
 239         case PIPE_CAP_MAX_VIEWPORTS:
 240             return 1;
 241
 242         case PIPE_CAP_MAX_VERTEX_ATTRIB_STRIDE:
 243             return 2048;
 244
 245         case PIPE_CAP_VENDOR_ID:
 246                 return 0x1002;
 247         case PIPE_CAP_DEVICE_ID:
 248                 return r300screen->info.pci_id;
 249         case PIPE_CAP_ACCELERATED:
 250                 return 1;
 251         case PIPE_CAP_VIDEO_MEMORY:
 252                 return r300screen->info.vram_size >> 20;
 253         case PIPE_CAP_UMA:
 254                 return 0;
 255     }
 256     return 0;
 257 }
 258
 259 static int r300_get_shader_param(struct pipe_screen *pscreen, unsigned shader, enum pipe_shader_cap param)
 260 {
 261    struct r300_screen* r300screen = r300_screen(pscreen);
 262    boolean is_r400 = r300screen->caps.is_r400;
 263    boolean is_r500 = r300screen->caps.is_r500;
 264
 265    switch (shader) {
 266     case PIPE_SHADER_FRAGMENT:
 267         switch (param)
 268         {
 269         case PIPE_SHADER_CAP_MAX_INSTRUCTIONS:
 270             return is_r500 || is_r400 ? 512 : 96;
 271         case PIPE_SHADER_CAP_MAX_ALU_INSTRUCTIONS:
 272             return is_r500 || is_r400 ? 512 : 64;
 273         case PIPE_SHADER_CAP_MAX_TEX_INSTRUCTIONS:
 274             return is_r500 || is_r400 ? 512 : 32;
 275         case PIPE_SHADER_CAP_MAX_TEX_INDIRECTIONS:
 276             return is_r500 ? 511 : 4;
 277         case PIPE_SHADER_CAP_MAX_CONTROL_FLOW_DEPTH:
 278             return is_r500 ? 64 : 0; /* Actually unlimited on r500. */
 279             /* Fragment shader limits. */
 280         case PIPE_SHADER_CAP_MAX_INPUTS:
 281             /* 2 colors + 8 texcoords are always supported
 282              * (minus fog and wpos).
 283              *
 284              * R500 has the ability to turn 3rd and 4th color into
 285              * additional texcoords but there is no two-sided color
 286              * selection then. However the facing bit can be used instead. */
 287             return 10;
 288         case PIPE_SHADER_CAP_MAX_OUTPUTS:
 289             return 4;
 290         case PIPE_SHADER_CAP_MAX_CONST_BUFFER_SIZE:
 291             return (is_r500 ? 256 : 32) * sizeof(float[4]);
 292         case PIPE_SHADER_CAP_MAX_CONST_BUFFERS:
 293         case PIPE_SHADER_CAP_TGSI_ANY_INOUT_DECL_RANGE:
 294             return 1;
 295         case PIPE_SHADER_CAP_MAX_TEMPS:
 296             return is_r500 ? 128 : is_r400 ? 64 : 32;
 297         case PIPE_SHADER_CAP_MAX_PREDS:
 298             return 0; /* unused */
 299         case PIPE_SHADER_CAP_MAX_TEXTURE_SAMPLERS:
 300         case PIPE_SHADER_CAP_MAX_SAMPLER_VIEWS:
 301            return r300screen->caps.num_tex_units;
 302         case PIPE_SHADER_CAP_TGSI_CONT_SUPPORTED:
 303         case PIPE_SHADER_CAP_TGSI_SQRT_SUPPORTED:
 304         case PIPE_SHADER_CAP_INDIRECT_INPUT_ADDR:
 305         case PIPE_SHADER_CAP_INDIRECT_OUTPUT_ADDR:
 306         case PIPE_SHADER_CAP_INDIRECT_TEMP_ADDR:
 307         case PIPE_SHADER_CAP_INDIRECT_CONST_ADDR:
 308         case PIPE_SHADER_CAP_SUBROUTINES:
 309         case PIPE_SHADER_CAP_INTEGERS:
 310         case PIPE_SHADER_CAP_DOUBLES:
 311         case PIPE_SHADER_CAP_TGSI_DROUND_SUPPORTED:
 312         case PIPE_SHADER_CAP_TGSI_DFRACEXP_DLDEXP_SUPPORTED:
 313         case PIPE_SHADER_CAP_TGSI_FMA_SUPPORTED:
 314         case PIPE_SHADER_CAP_MAX_SHADER_BUFFERS:
 315             return 0;
 316         case PIPE_SHADER_CAP_MAX_UNROLL_ITERATIONS_HINT:
 317             return 32;
 318         case PIPE_SHADER_CAP_PREFERRED_IR:
 319             return PIPE_SHADER_IR_TGSI;
 320         }
 321         break;
 322     case PIPE_SHADER_VERTEX:
 323         switch (param)
 324         {
 325         case PIPE_SHADER_CAP_MAX_TEXTURE_SAMPLERS:
 326         case PIPE_SHADER_CAP_MAX_SAMPLER_VIEWS:
 327         case PIPE_SHADER_CAP_SUBROUTINES:
 328             return 0;
 329         default:;
 330         }
 331
 332         if (!r300screen->caps.has_tcl) {
 333             return draw_get_shader_param(shader, param);
 334         }
 335
 336         switch (param)
 337         {
 338         case PIPE_SHADER_CAP_MAX_INSTRUCTIONS:
 339         case PIPE_SHADER_CAP_MAX_ALU_INSTRUCTIONS:
 340             return is_r500 ? 1024 : 256;
 341         case PIPE_SHADER_CAP_MAX_CONTROL_FLOW_DEPTH:
 342             return is_r500 ? 4 : 0; /* For loops; not sure about conditionals. */
 343         case PIPE_SHADER_CAP_MAX_INPUTS:
 344             return 16;
 345         case PIPE_SHADER_CAP_MAX_OUTPUTS:
 346             return 10;
 347         case PIPE_SHADER_CAP_MAX_CONST_BUFFER_SIZE:
 348             return 256 * sizeof(float[4]);
 349         case PIPE_SHADER_CAP_MAX_CONST_BUFFERS:
 350             return 1;
 351         case PIPE_SHADER_CAP_MAX_TEMPS:
 352             return 32;
 353         case PIPE_SHADER_CAP_MAX_PREDS:
 354             return 0; /* unused */
 355         case PIPE_SHADER_CAP_INDIRECT_CONST_ADDR:
 356         case PIPE_SHADER_CAP_TGSI_ANY_INOUT_DECL_RANGE:
 357             return 1;
 358         case PIPE_SHADER_CAP_MAX_TEX_INSTRUCTIONS:
 359         case PIPE_SHADER_CAP_MAX_TEX_INDIRECTIONS:
 360         case PIPE_SHADER_CAP_TGSI_CONT_SUPPORTED:
 361         case PIPE_SHADER_CAP_TGSI_SQRT_SUPPORTED:
 362         case PIPE_SHADER_CAP_INDIRECT_INPUT_ADDR:
 363         case PIPE_SHADER_CAP_INDIRECT_OUTPUT_ADDR:
 364         case PIPE_SHADER_CAP_INDIRECT_TEMP_ADDR:
 365         case PIPE_SHADER_CAP_SUBROUTINES:
 366         case PIPE_SHADER_CAP_INTEGERS:
 367         case PIPE_SHADER_CAP_MAX_TEXTURE_SAMPLERS:
 368         case PIPE_SHADER_CAP_MAX_SAMPLER_VIEWS:
 369         case PIPE_SHADER_CAP_DOUBLES:
 370         case PIPE_SHADER_CAP_TGSI_DROUND_SUPPORTED:
 371         case PIPE_SHADER_CAP_TGSI_DFRACEXP_DLDEXP_SUPPORTED:
 372         case PIPE_SHADER_CAP_TGSI_FMA_SUPPORTED:
 373         case PIPE_SHADER_CAP_MAX_SHADER_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         }
 380         break;
 381     }
 382     return 0;
 383 }
 384
 385 static float r300_get_paramf(struct pipe_screen* pscreen,
 386                              enum pipe_capf param)
 387 {
 388     struct r300_screen* r300screen = r300_screen(pscreen);
 389
 390     switch (param) {
 391         case PIPE_CAPF_MAX_LINE_WIDTH:
 392         case PIPE_CAPF_MAX_LINE_WIDTH_AA:
 393         case PIPE_CAPF_MAX_POINT_WIDTH:
 394         case PIPE_CAPF_MAX_POINT_WIDTH_AA:
 395             /* The maximum dimensions of the colorbuffer are our practical
 396              * rendering limits. 2048 pixels should be enough for anybody. */
 397             if (r300screen->caps.is_r500) {
 398                 return 4096.0f;
 399             } else if (r300screen->caps.is_r400) {
 400                 return 4021.0f;
 401             } else {
 402                 return 2560.0f;
 403             }
 404         case PIPE_CAPF_MAX_TEXTURE_ANISOTROPY:
 405             return 16.0f;
 406         case PIPE_CAPF_MAX_TEXTURE_LOD_BIAS:
 407             return 16.0f;
 408         case PIPE_CAPF_GUARD_BAND_LEFT:
 409         case PIPE_CAPF_GUARD_BAND_TOP:
 410         case PIPE_CAPF_GUARD_BAND_RIGHT:
 411         case PIPE_CAPF_GUARD_BAND_BOTTOM:
 412             return 0.0f;
 413         default:
 414             debug_printf("r300: Warning: Unknown CAP %d in get_paramf.\n",
 415                          param);
 416             return 0.0f;
 417     }
 418 }
 419
 420 static int r300_get_video_param(struct pipe_screen *screen,
 421                                 enum pipe_video_profile profile,
 422                                 enum pipe_video_entrypoint entrypoint,
 423                                 enum pipe_video_cap param)
 424 {
 425    switch (param) {
 426       case PIPE_VIDEO_CAP_SUPPORTED:
 427          return vl_profile_supported(screen, profile, entrypoint);
 428       case PIPE_VIDEO_CAP_NPOT_TEXTURES:
 429          return 0;
 430       case PIPE_VIDEO_CAP_MAX_WIDTH:
 431       case PIPE_VIDEO_CAP_MAX_HEIGHT:
 432          return vl_video_buffer_max_size(screen);
 433       case PIPE_VIDEO_CAP_PREFERED_FORMAT:
 434          return PIPE_FORMAT_NV12;
 435       case PIPE_VIDEO_CAP_PREFERS_INTERLACED:
 436          return false;
 437       case PIPE_VIDEO_CAP_SUPPORTS_INTERLACED:
 438          return false;
 439       case PIPE_VIDEO_CAP_SUPPORTS_PROGRESSIVE:
 440          return true;
 441       case PIPE_VIDEO_CAP_MAX_LEVEL:
 442          return vl_level_supported(screen, profile);
 443       default:
 444          return 0;
 445    }
 446 }
 447
 448 /**
 449  * Whether the format matches:
 450  *   PIPE_FORMAT_?10?10?10?2_UNORM
 451  */
 452 static inline boolean
 453 util_format_is_rgba1010102_variant(const struct util_format_description *desc)
 454 {
 455    static const unsigned size[4] = {10, 10, 10, 2};
 456    unsigned chan;
 457
 458    if (desc->block.width != 1 ||
 459        desc->block.height != 1 ||
 460        desc->block.bits != 32)
 461       return FALSE;
 462
 463    for (chan = 0; chan < 4; ++chan) {
 464       if(desc->channel[chan].type != UTIL_FORMAT_TYPE_UNSIGNED &&
 465          desc->channel[chan].type != UTIL_FORMAT_TYPE_VOID)
 466          return FALSE;
 467       if (desc->channel[chan].size != size[chan])
 468          return FALSE;
 469    }
 470
 471    return TRUE;
 472 }
 473
 474 static bool r300_is_blending_supported(struct r300_screen *rscreen,
 475                                        enum pipe_format format)
 476 {
 477     int c;
 478     const struct util_format_description *desc =
 479         util_format_description(format);
 480
 481     if (desc->layout != UTIL_FORMAT_LAYOUT_PLAIN)
 482         return false;
 483
 484     c = util_format_get_first_non_void_channel(format);
 485
 486     /* RGBA16F */
 487     if (rscreen->caps.is_r500 &&
 488         desc->nr_channels == 4 &&
 489         desc->channel[c].size == 16 &&
 490         desc->channel[c].type == UTIL_FORMAT_TYPE_FLOAT)
 491         return true;
 492
 493     if (desc->channel[c].normalized &&
 494         desc->channel[c].type == UTIL_FORMAT_TYPE_UNSIGNED &&
 495         desc->channel[c].size >= 4 &&
 496         desc->channel[c].size <= 10) {
 497         /* RGB10_A2, RGBA8, RGB5_A1, RGBA4, RGB565 */
 498         if (desc->nr_channels >= 3)
 499             return true;
 500
 501         if (format == PIPE_FORMAT_R8G8_UNORM)
 502             return true;
 503
 504         /* R8, I8, L8, A8 */
 505         if (desc->nr_channels == 1)
 506             return true;
 507     }
 508
 509     return false;
 510 }
 511
 512 static boolean r300_is_format_supported(struct pipe_screen* screen,
 513                                         enum pipe_format format,
 514                                         enum pipe_texture_target target,
 515                                         unsigned sample_count,
 516                                         unsigned usage)
 517 {
 518     uint32_t retval = 0;
 519     boolean drm_2_8_0 = r300_screen(screen)->info.drm_minor >= 8;
 520     boolean is_r500 = r300_screen(screen)->caps.is_r500;
 521     boolean is_r400 = r300_screen(screen)->caps.is_r400;
 522     boolean is_color2101010 = format == PIPE_FORMAT_R10G10B10A2_UNORM ||
 523                               format == PIPE_FORMAT_R10G10B10X2_SNORM ||
 524                               format == PIPE_FORMAT_B10G10R10A2_UNORM ||
 525                               format == PIPE_FORMAT_B10G10R10X2_UNORM ||
 526                               format == PIPE_FORMAT_R10SG10SB10SA2U_NORM;
 527     boolean is_ati1n = format == PIPE_FORMAT_RGTC1_UNORM ||
 528                        format == PIPE_FORMAT_RGTC1_SNORM ||
 529                        format == PIPE_FORMAT_LATC1_UNORM ||
 530                        format == PIPE_FORMAT_LATC1_SNORM;
 531     boolean is_ati2n = format == PIPE_FORMAT_RGTC2_UNORM ||
 532                        format == PIPE_FORMAT_RGTC2_SNORM ||
 533                        format == PIPE_FORMAT_LATC2_UNORM ||
 534                        format == PIPE_FORMAT_LATC2_SNORM;
 535     boolean is_x16f_xy16f = format == PIPE_FORMAT_R16_FLOAT ||
 536                             format == PIPE_FORMAT_R16G16_FLOAT ||
 537                             format == PIPE_FORMAT_A16_FLOAT ||
 538                             format == PIPE_FORMAT_L16_FLOAT ||
 539                             format == PIPE_FORMAT_L16A16_FLOAT ||
 540                             format == PIPE_FORMAT_R16A16_FLOAT ||
 541                             format == PIPE_FORMAT_I16_FLOAT;
 542     boolean is_half_float = format == PIPE_FORMAT_R16_FLOAT ||
 543                             format == PIPE_FORMAT_R16G16_FLOAT ||
 544                             format == PIPE_FORMAT_R16G16B16_FLOAT ||
 545                             format == PIPE_FORMAT_R16G16B16A16_FLOAT ||
 546                             format == PIPE_FORMAT_R16G16B16X16_FLOAT;
 547     const struct util_format_description *desc;
 548
 549     if (!util_format_is_supported(format, usage))
 550        return FALSE;
 551
 552     /* Check multisampling support. */
 553     switch (sample_count) {
 554         case 0:
 555         case 1:
 556             break;
 557         case 2:
 558         case 4:
 559         case 6:
 560             /* We need DRM 2.8.0. */
 561             if (!drm_2_8_0) {
 562                 return FALSE;
 563             }
 564             /* No texturing and scanout. */
 565             if (usage & (PIPE_BIND_SAMPLER_VIEW |
 566                          PIPE_BIND_DISPLAY_TARGET |
 567                          PIPE_BIND_SCANOUT)) {
 568                 return FALSE;
 569             }
 570
 571             desc = util_format_description(format);
 572
 573             if (is_r500) {
 574                 /* Only allow depth/stencil, RGBA8, RGBA1010102, RGBA16F. */
 575                 if (!util_format_is_depth_or_stencil(format) &&
 576                     !util_format_is_rgba8_variant(desc) &&
 577                     !util_format_is_rgba1010102_variant(desc) &&
 578                     format != PIPE_FORMAT_R16G16B16A16_FLOAT &&
 579                     format != PIPE_FORMAT_R16G16B16X16_FLOAT) {
 580                     return FALSE;
 581                 }
 582             } else {
 583                 /* Only allow depth/stencil, RGBA8. */
 584                 if (!util_format_is_depth_or_stencil(format) &&
 585                     !util_format_is_rgba8_variant(desc)) {
 586                     return FALSE;
 587                 }
 588             }
 589             break;
 590         default:
 591             return FALSE;
 592     }
 593
 594     /* Check sampler format support. */
 595     if ((usage & PIPE_BIND_SAMPLER_VIEW) &&
 596         /* these two are broken for an unknown reason */
 597         format != PIPE_FORMAT_R8G8B8X8_SNORM &&
 598         format != PIPE_FORMAT_R16G16B16X16_SNORM &&
 599         /* ATI1N is r5xx-only. */
 600         (is_r500 || !is_ati1n) &&
 601         /* ATI2N is supported on r4xx-r5xx. */
 602         (is_r400 || is_r500 || !is_ati2n) &&
 603         /* R16F and RG16F texture support was added in as late as DRM 2.8.0 */
 604         (drm_2_8_0 || !is_x16f_xy16f) &&
 605         r300_is_sampler_format_supported(format)) {
 606         retval |= PIPE_BIND_SAMPLER_VIEW;
 607     }
 608
 609     /* Check colorbuffer format support. */
 610     if ((usage & (PIPE_BIND_RENDER_TARGET |
 611                   PIPE_BIND_DISPLAY_TARGET |
 612                   PIPE_BIND_SCANOUT |
 613                   PIPE_BIND_SHARED |
 614                   PIPE_BIND_BLENDABLE)) &&
 615         /* 2101010 cannot be rendered to on non-r5xx. */
 616         (!is_color2101010 || (is_r500 && drm_2_8_0)) &&
 617         r300_is_colorbuffer_format_supported(format)) {
 618         retval |= usage &
 619             (PIPE_BIND_RENDER_TARGET |
 620              PIPE_BIND_DISPLAY_TARGET |
 621              PIPE_BIND_SCANOUT |
 622              PIPE_BIND_SHARED);
 623
 624         if (r300_is_blending_supported(r300_screen(screen), format)) {
 625             retval |= usage & PIPE_BIND_BLENDABLE;
 626         }
 627     }
 628
 629     /* Check depth-stencil format support. */
 630     if (usage & PIPE_BIND_DEPTH_STENCIL &&
 631         r300_is_zs_format_supported(format)) {
 632         retval |= PIPE_BIND_DEPTH_STENCIL;
 633     }
 634
 635     /* Check vertex buffer format support. */
 636     if (usage & PIPE_BIND_VERTEX_BUFFER) {
 637         if (r300_screen(screen)->caps.has_tcl) {
 638             /* Half float is supported on >= R400. */
 639             if ((is_r400 || is_r500 || !is_half_float) &&
 640                 r300_translate_vertex_data_type(format) != R300_INVALID_FORMAT) {
 641                 retval |= PIPE_BIND_VERTEX_BUFFER;
 642             }
 643         } else {
 644             /* SW TCL */
 645             if (!util_format_is_pure_integer(format)) {
 646                 retval |= PIPE_BIND_VERTEX_BUFFER;
 647             }
 648         }
 649     }
 650
 651     /* Transfers are always supported. */
 652     if (usage & PIPE_BIND_TRANSFER_READ)
 653         retval |= PIPE_BIND_TRANSFER_READ;
 654     if (usage & PIPE_BIND_TRANSFER_WRITE)
 655         retval |= PIPE_BIND_TRANSFER_WRITE;
 656
 657     return retval == usage;
 658 }
 659
 660 static void r300_destroy_screen(struct pipe_screen* pscreen)
 661 {
 662     struct r300_screen* r300screen = r300_screen(pscreen);
 663     struct radeon_winsys *rws = radeon_winsys(pscreen);
 664
 665     if (rws && !rws->unref(rws))
 666       return;
 667
 668     pipe_mutex_destroy(r300screen->cmask_mutex);
 669
 670     if (rws)
 671       rws->destroy(rws);
 672
 673     FREE(r300screen);
 674 }
 675
 676 static void r300_fence_reference(struct pipe_screen *screen,
 677                                  struct pipe_fence_handle **ptr,
 678                                  struct pipe_fence_handle *fence)
 679 {
 680     struct radeon_winsys *rws = r300_screen(screen)->rws;
 681
 682     rws->fence_reference(ptr, fence);
 683 }
 684
 685 static boolean r300_fence_finish(struct pipe_screen *screen,
 686                                  struct pipe_fence_handle *fence,
 687                                  uint64_t timeout)
 688 {
 689     struct radeon_winsys *rws = r300_screen(screen)->rws;
 690
 691     return rws->fence_wait(rws, fence, timeout);
 692 }
 693
 694 struct pipe_screen* r300_screen_create(struct radeon_winsys *rws)
 695 {
 696     struct r300_screen *r300screen = CALLOC_STRUCT(r300_screen);
 697
 698     if (!r300screen) {
 699         FREE(r300screen);
 700         return NULL;
 701     }
 702
 703     rws->query_info(rws, &r300screen->info);
 704
 705     r300_init_debug(r300screen);
 706     r300_parse_chipset(r300screen->info.pci_id, &r300screen->caps);
 707
 708     if (SCREEN_DBG_ON(r300screen, DBG_NO_ZMASK))
 709         r300screen->caps.zmask_ram = 0;
 710     if (SCREEN_DBG_ON(r300screen, DBG_NO_HIZ))
 711         r300screen->caps.hiz_ram = 0;
 712
 713     if (r300screen->info.drm_minor < 8)
 714         r300screen->caps.has_us_format = FALSE;
 715
 716     r300screen->rws = rws;
 717     r300screen->screen.destroy = r300_destroy_screen;
 718     r300screen->screen.get_name = r300_get_name;
 719     r300screen->screen.get_vendor = r300_get_vendor;
 720     r300screen->screen.get_device_vendor = r300_get_device_vendor;
 721     r300screen->screen.get_param = r300_get_param;
 722     r300screen->screen.get_shader_param = r300_get_shader_param;
 723     r300screen->screen.get_paramf = r300_get_paramf;
 724     r300screen->screen.get_video_param = r300_get_video_param;
 725     r300screen->screen.is_format_supported = r300_is_format_supported;
 726     r300screen->screen.is_video_format_supported = vl_video_buffer_is_format_supported;
 727     r300screen->screen.context_create = r300_create_context;
 728     r300screen->screen.fence_reference = r300_fence_reference;
 729     r300screen->screen.fence_finish = r300_fence_finish;
 730
 731     r300_init_screen_resource_functions(r300screen);
 732
 733     util_format_s3tc_init();
 734     pipe_mutex_init(r300screen->cmask_mutex);
 735
 736     return &r300screen->screen;
 737 }