src/gallium/drivers/i915/i915_screen.c

   1 /**************************************************************************
   2  *
   3  * Copyright 2008 VMware, Inc.
   4  * All Rights Reserved.
   5  *
   6  * Permission is hereby granted, free of charge, to any person obtaining a
   7  * copy of this software and associated documentation files (the
   8  * "Software"), to deal in the Software without restriction, including
   9  * without limitation the rights to use, copy, modify, merge, publish,
  10  * distribute, sub license, and/or sell copies of the Software, and to
  11  * permit persons to whom the Software is furnished to do so, subject to
  12  * the following conditions:
  13  *
  14  * The above copyright notice and this permission notice (including the
  15  * next paragraph) shall be included in all copies or substantial portions
  16  * of the Software.
  17  *
  18  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
  19  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  20  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
  21  * IN NO EVENT SHALL VMWARE AND/OR ITS SUPPLIERS BE LIABLE FOR
  22  * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
  23  * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
  24  * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  25  *
  26  **************************************************************************/
  27
  28
  29 #include "draw/draw_context.h"
  30 #include "util/u_format.h"
  31 #include "util/u_format_s3tc.h"
  32 #include "util/u_inlines.h"
  33 #include "util/u_memory.h"
  34 #include "util/u_string.h"
  35
  36 #include "i915_reg.h"
  37 #include "i915_debug.h"
  38 #include "i915_context.h"
  39 #include "i915_screen.h"
  40 #include "i915_resource.h"
  41 #include "i915_winsys.h"
  42 #include "i915_public.h"
  43
  44
  45 /*
  46  * Probe functions
  47  */
  48
  49
  50 static const char *
  51 i915_get_vendor(struct pipe_screen *screen)
  52 {
  53    return "Mesa Project";
  54 }
  55
  56 static const char *
  57 i915_get_name(struct pipe_screen *screen)
  58 {
  59    static char buffer[128];
  60    const char *chipset;
  61
  62    switch (i915_screen(screen)->iws->pci_id) {
  63    case PCI_CHIP_I915_G:
  64       chipset = "915G";
  65       break;
  66    case PCI_CHIP_I915_GM:
  67       chipset = "915GM";
  68       break;
  69    case PCI_CHIP_I945_G:
  70       chipset = "945G";
  71       break;
  72    case PCI_CHIP_I945_GM:
  73       chipset = "945GM";
  74       break;
  75    case PCI_CHIP_I945_GME:
  76       chipset = "945GME";
  77       break;
  78    case PCI_CHIP_G33_G:
  79       chipset = "G33";
  80       break;
  81    case PCI_CHIP_Q35_G:
  82       chipset = "Q35";
  83       break;
  84    case PCI_CHIP_Q33_G:
  85       chipset = "Q33";
  86       break;
  87    case PCI_CHIP_PINEVIEW_G:
  88       chipset = "Pineview G";
  89       break;
  90    case PCI_CHIP_PINEVIEW_M:
  91       chipset = "Pineview M";
  92       break;
  93    default:
  94       chipset = "unknown";
  95       break;
  96    }
  97
  98    util_snprintf(buffer, sizeof(buffer), "i915 (chipset: %s)", chipset);
  99    return buffer;
 100 }
 101
 102 static int
 103 i915_get_shader_param(struct pipe_screen *screen, unsigned shader, enum pipe_shader_cap cap)
 104 {
 105    switch(shader) {
 106    case PIPE_SHADER_VERTEX:
 107       switch (cap) {
 108       case PIPE_SHADER_CAP_MAX_TEXTURE_SAMPLERS:
 109       case PIPE_SHADER_CAP_MAX_SAMPLER_VIEWS:
 110          if (debug_get_bool_option("DRAW_USE_LLVM", TRUE))
 111             return PIPE_MAX_SAMPLERS;
 112          else
 113             return 0;
 114        default:
 115          return draw_get_shader_param(shader, cap);
 116       }
 117    case PIPE_SHADER_FRAGMENT:
 118       /* XXX: some of these are just shader model 2.0 values, fix this! */
 119       switch(cap) {
 120       case PIPE_SHADER_CAP_MAX_INSTRUCTIONS:
 121          return I915_MAX_ALU_INSN + I915_MAX_TEX_INSN;
 122       case PIPE_SHADER_CAP_MAX_ALU_INSTRUCTIONS:
 123          return I915_MAX_ALU_INSN;
 124       case PIPE_SHADER_CAP_MAX_TEX_INSTRUCTIONS:
 125          return I915_MAX_TEX_INSN;
 126       case PIPE_SHADER_CAP_MAX_TEX_INDIRECTIONS:
 127          return 8;
 128       case PIPE_SHADER_CAP_MAX_CONTROL_FLOW_DEPTH:
 129          return 0;
 130       case PIPE_SHADER_CAP_MAX_INPUTS:
 131          return 10;
 132       case PIPE_SHADER_CAP_MAX_CONSTS:
 133          return 32;
 134       case PIPE_SHADER_CAP_MAX_CONST_BUFFERS:
 135          return 1;
 136       case PIPE_SHADER_CAP_MAX_TEMPS:
 137          return 12; /* XXX: 12 -> 32 ? */
 138       case PIPE_SHADER_CAP_MAX_ADDRS:
 139          return 0;
 140       case PIPE_SHADER_CAP_MAX_PREDS:
 141          return 0;
 142       case PIPE_SHADER_CAP_TGSI_CONT_SUPPORTED:
 143       case PIPE_SHADER_CAP_TGSI_SQRT_SUPPORTED:
 144          return 0;
 145       case PIPE_SHADER_CAP_INDIRECT_INPUT_ADDR:
 146       case PIPE_SHADER_CAP_INDIRECT_OUTPUT_ADDR:
 147       case PIPE_SHADER_CAP_INDIRECT_TEMP_ADDR:
 148       case PIPE_SHADER_CAP_INDIRECT_CONST_ADDR:
 149          return 1;
 150       case PIPE_SHADER_CAP_SUBROUTINES:
 151          return 0;
 152       case PIPE_SHADER_CAP_INTEGERS:
 153          return 0;
 154       case PIPE_SHADER_CAP_MAX_TEXTURE_SAMPLERS:
 155       case PIPE_SHADER_CAP_MAX_SAMPLER_VIEWS:
 156          return I915_TEX_UNITS;
 157       default:
 158          debug_printf("%s: Unknown cap %u.\n", __FUNCTION__, cap);
 159          return 0;
 160       }
 161       break;
 162    default:
 163       return 0;
 164    }
 165
 166 }
 167
 168 static int
 169 i915_get_param(struct pipe_screen *screen, enum pipe_cap cap)
 170 {
 171    struct i915_screen *is = i915_screen(screen);
 172
 173    switch (cap) {
 174    /* Supported features (boolean caps). */
 175    case PIPE_CAP_ANISOTROPIC_FILTER:
 176    case PIPE_CAP_NPOT_TEXTURES:
 177    case PIPE_CAP_MIXED_FRAMEBUFFER_SIZES:
 178    case PIPE_CAP_POINT_SPRITE:
 179    case PIPE_CAP_PRIMITIVE_RESTART: /* draw module */
 180    case PIPE_CAP_TEXTURE_SHADOW_MAP:
 181    case PIPE_CAP_TWO_SIDED_STENCIL:
 182    case PIPE_CAP_VERTEX_ELEMENT_INSTANCE_DIVISOR:
 183    case PIPE_CAP_BLEND_EQUATION_SEPARATE:
 184    case PIPE_CAP_TGSI_INSTANCEID:
 185    case PIPE_CAP_VERTEX_COLOR_CLAMPED:
 186    case PIPE_CAP_USER_VERTEX_BUFFERS:
 187    case PIPE_CAP_USER_INDEX_BUFFERS:
 188    case PIPE_CAP_USER_CONSTANT_BUFFERS:
 189       return 1;
 190
 191    /* Unsupported features (boolean caps). */
 192    case PIPE_CAP_MAX_TEXTURE_ARRAY_LAYERS:
 193    case PIPE_CAP_DEPTH_CLIP_DISABLE:
 194    case PIPE_CAP_INDEP_BLEND_ENABLE:
 195    case PIPE_CAP_INDEP_BLEND_FUNC:
 196    case PIPE_CAP_SHADER_STENCIL_EXPORT:
 197    case PIPE_CAP_TEXTURE_MIRROR_CLAMP:
 198    case PIPE_CAP_TEXTURE_SWIZZLE:
 199    case PIPE_CAP_QUERY_TIME_ELAPSED:
 200    case PIPE_CAP_SM3:
 201    case PIPE_CAP_SEAMLESS_CUBE_MAP:
 202    case PIPE_CAP_SEAMLESS_CUBE_MAP_PER_TEXTURE:
 203    case PIPE_CAP_FRAGMENT_COLOR_CLAMPED:
 204    case PIPE_CAP_MIXED_COLORBUFFER_FORMATS:
 205    case PIPE_CAP_CONDITIONAL_RENDER:
 206    case PIPE_CAP_TEXTURE_BARRIER:
 207    case PIPE_CAP_TGSI_CAN_COMPACT_CONSTANTS:
 208    case PIPE_CAP_VERTEX_COLOR_UNCLAMPED:
 209    case PIPE_CAP_QUADS_FOLLOW_PROVOKING_VERTEX_CONVENTION:
 210    case PIPE_CAP_START_INSTANCE:
 211    case PIPE_CAP_QUERY_TIMESTAMP:
 212    case PIPE_CAP_QUERY_PIPELINE_STATISTICS:
 213    case PIPE_CAP_TEXTURE_MULTISAMPLE:
 214    case PIPE_CAP_TEXTURE_BORDER_COLOR_QUIRK:
 215    case PIPE_CAP_CUBE_MAP_ARRAY:
 216    case PIPE_CAP_TEXTURE_BUFFER_OBJECTS:
 217    case PIPE_CAP_TGSI_TEXCOORD:
 218    case PIPE_CAP_PREFER_BLIT_BASED_TEXTURE_TRANSFER:
 219    case PIPE_CAP_MAX_TEXTURE_GATHER_COMPONENTS:
 220    case PIPE_CAP_TEXTURE_GATHER_SM5:
 221    case PIPE_CAP_FAKE_SW_MSAA:
 222       return 0;
 223
 224    case PIPE_CAP_MAX_DUAL_SOURCE_RENDER_TARGETS:
 225    case PIPE_CAP_STREAM_OUTPUT_PAUSE_RESUME:
 226    case PIPE_CAP_VERTEX_BUFFER_OFFSET_4BYTE_ALIGNED_ONLY:
 227    case PIPE_CAP_VERTEX_BUFFER_STRIDE_4BYTE_ALIGNED_ONLY:
 228    case PIPE_CAP_VERTEX_ELEMENT_SRC_OFFSET_4BYTE_ALIGNED_ONLY:
 229    case PIPE_CAP_TGSI_VS_LAYER:
 230    case PIPE_CAP_BUFFER_MAP_PERSISTENT_COHERENT:
 231       return 0;
 232
 233    case PIPE_CAP_MIN_MAP_BUFFER_ALIGNMENT:
 234       return 64;
 235
 236    case PIPE_CAP_GLSL_FEATURE_LEVEL:
 237       return 120;
 238
 239    case PIPE_CAP_CONSTANT_BUFFER_OFFSET_ALIGNMENT:
 240       return 16;
 241
 242    /* Features we can lie about (boolean caps). */
 243    case PIPE_CAP_OCCLUSION_QUERY:
 244       return is->debug.lie ? 1 : 0;
 245
 246    /* Texturing. */
 247    case PIPE_CAP_MAX_TEXTURE_2D_LEVELS:
 248       return I915_MAX_TEXTURE_2D_LEVELS;
 249    case PIPE_CAP_MAX_TEXTURE_3D_LEVELS:
 250       return I915_MAX_TEXTURE_3D_LEVELS;
 251    case PIPE_CAP_MAX_TEXTURE_CUBE_LEVELS:
 252       return I915_MAX_TEXTURE_2D_LEVELS;
 253    case PIPE_CAP_MIN_TEXEL_OFFSET:
 254    case PIPE_CAP_MAX_TEXEL_OFFSET:
 255    case PIPE_CAP_MAX_STREAM_OUTPUT_BUFFERS:
 256    case PIPE_CAP_MAX_STREAM_OUTPUT_SEPARATE_COMPONENTS:
 257    case PIPE_CAP_MAX_STREAM_OUTPUT_INTERLEAVED_COMPONENTS:
 258       return 0;
 259
 260    /* Render targets. */
 261    case PIPE_CAP_MAX_RENDER_TARGETS:
 262       return 1;
 263
 264    /* Geometry shader output, unsupported. */
 265    case PIPE_CAP_MAX_GEOMETRY_OUTPUT_VERTICES:
 266    case PIPE_CAP_MAX_GEOMETRY_TOTAL_OUTPUT_COMPONENTS:
 267       return 0;
 268
 269    /* Fragment coordinate conventions. */
 270    case PIPE_CAP_TGSI_FS_COORD_ORIGIN_UPPER_LEFT:
 271    case PIPE_CAP_TGSI_FS_COORD_PIXEL_CENTER_HALF_INTEGER:
 272       return 1;
 273    case PIPE_CAP_TGSI_FS_COORD_ORIGIN_LOWER_LEFT:
 274    case PIPE_CAP_TGSI_FS_COORD_PIXEL_CENTER_INTEGER:
 275       return 0;
 276    case PIPE_CAP_ENDIANNESS:
 277       return PIPE_ENDIAN_LITTLE;
 278
 279    default:
 280       debug_printf("%s: Unknown cap %u.\n", __FUNCTION__, cap);
 281       return 0;
 282    }
 283 }
 284
 285 static float
 286 i915_get_paramf(struct pipe_screen *screen, enum pipe_capf cap)
 287 {
 288    switch(cap) {
 289    case PIPE_CAPF_MAX_LINE_WIDTH:
 290       /* fall-through */
 291    case PIPE_CAPF_MAX_LINE_WIDTH_AA:
 292       return 7.5;
 293
 294    case PIPE_CAPF_MAX_POINT_WIDTH:
 295       /* fall-through */
 296    case PIPE_CAPF_MAX_POINT_WIDTH_AA:
 297       return 255.0;
 298
 299    case PIPE_CAPF_MAX_TEXTURE_ANISOTROPY:
 300       return 4.0;
 301
 302    case PIPE_CAPF_MAX_TEXTURE_LOD_BIAS:
 303       return 16.0;
 304
 305    default:
 306       debug_printf("%s: Unknown cap %u.\n", __FUNCTION__, cap);
 307       return 0;
 308    }
 309 }
 310
 311 boolean
 312 i915_is_format_supported(struct pipe_screen *screen,
 313                          enum pipe_format format,
 314                          enum pipe_texture_target target,
 315                          unsigned sample_count,
 316                          unsigned tex_usage)
 317 {
 318    static const enum pipe_format tex_supported[] = {
 319       PIPE_FORMAT_B8G8R8A8_UNORM,
 320       PIPE_FORMAT_B8G8R8A8_SRGB,
 321       PIPE_FORMAT_B8G8R8X8_UNORM,
 322       PIPE_FORMAT_R8G8B8A8_UNORM,
 323       PIPE_FORMAT_R8G8B8X8_UNORM,
 324       PIPE_FORMAT_B5G6R5_UNORM,
 325       PIPE_FORMAT_B10G10R10A2_UNORM,
 326       PIPE_FORMAT_L8_UNORM,
 327       PIPE_FORMAT_A8_UNORM,
 328       PIPE_FORMAT_I8_UNORM,
 329       PIPE_FORMAT_L8A8_UNORM,
 330       PIPE_FORMAT_UYVY,
 331       PIPE_FORMAT_YUYV,
 332       /* XXX why not?
 333       PIPE_FORMAT_Z16_UNORM, */
 334       PIPE_FORMAT_DXT1_RGB,
 335       PIPE_FORMAT_DXT1_RGBA,
 336       PIPE_FORMAT_DXT3_RGBA,
 337       PIPE_FORMAT_DXT5_RGBA,
 338       PIPE_FORMAT_Z24X8_UNORM,
 339       PIPE_FORMAT_Z24_UNORM_S8_UINT,
 340       PIPE_FORMAT_NONE  /* list terminator */
 341    };
 342    static const enum pipe_format render_supported[] = {
 343       PIPE_FORMAT_B8G8R8A8_UNORM,
 344       PIPE_FORMAT_B8G8R8X8_UNORM,
 345       PIPE_FORMAT_R8G8B8A8_UNORM,
 346       PIPE_FORMAT_R8G8B8X8_UNORM,
 347       PIPE_FORMAT_B5G6R5_UNORM,
 348       PIPE_FORMAT_B10G10R10A2_UNORM,
 349       PIPE_FORMAT_L8_UNORM,
 350       PIPE_FORMAT_A8_UNORM,
 351       PIPE_FORMAT_I8_UNORM,
 352       PIPE_FORMAT_NONE  /* list terminator */
 353    };
 354    static const enum pipe_format depth_supported[] = {
 355       /* XXX why not?
 356       PIPE_FORMAT_Z16_UNORM, */
 357       PIPE_FORMAT_Z24X8_UNORM,
 358       PIPE_FORMAT_Z24_UNORM_S8_UINT,
 359       PIPE_FORMAT_NONE  /* list terminator */
 360    };
 361    const enum pipe_format *list;
 362    uint i;
 363
 364    if (!util_format_is_supported(format, tex_usage))
 365       return FALSE;
 366
 367    if (sample_count > 1)
 368       return FALSE;
 369
 370    if(tex_usage & PIPE_BIND_DEPTH_STENCIL)
 371       list = depth_supported;
 372    else if (tex_usage & PIPE_BIND_RENDER_TARGET)
 373       list = render_supported;
 374    else if (tex_usage & PIPE_BIND_SAMPLER_VIEW)
 375       list = tex_supported;
 376    else
 377       return TRUE; /* PIPE_BIND_{VERTEX,INDEX}_BUFFER */
 378
 379    for (i = 0; list[i] != PIPE_FORMAT_NONE; i++) {
 380       if (list[i] == format)
 381          return TRUE;
 382    }
 383
 384    return FALSE;
 385 }
 386
 387
 388 /*
 389  * Fence functions
 390  */
 391
 392
 393 static void
 394 i915_fence_reference(struct pipe_screen *screen,
 395                      struct pipe_fence_handle **ptr,
 396                      struct pipe_fence_handle *fence)
 397 {
 398    struct i915_screen *is = i915_screen(screen);
 399
 400    is->iws->fence_reference(is->iws, ptr, fence);
 401 }
 402
 403 static boolean
 404 i915_fence_signalled(struct pipe_screen *screen,
 405                      struct pipe_fence_handle *fence)
 406 {
 407    struct i915_screen *is = i915_screen(screen);
 408
 409    return is->iws->fence_signalled(is->iws, fence) == 1;
 410 }
 411
 412 static boolean
 413 i915_fence_finish(struct pipe_screen *screen,
 414                   struct pipe_fence_handle *fence,
 415                   uint64_t timeout)
 416 {
 417    struct i915_screen *is = i915_screen(screen);
 418
 419    return is->iws->fence_finish(is->iws, fence) == 1;
 420 }
 421
 422
 423 /*
 424  * Generic functions
 425  */
 426
 427
 428 static void
 429 i915_flush_frontbuffer(struct pipe_screen *screen,
 430                        struct pipe_resource *resource,
 431                        unsigned level, unsigned layer,
 432                        void *winsys_drawable_handle,
 433                        struct pipe_box *sub_box)
 434 {
 435    /* XXX: Dummy right now. */
 436    (void)screen;
 437    (void)resource;
 438    (void)level;
 439    (void)layer;
 440    (void)winsys_drawable_handle;
 441    (void)sub_box;
 442 }
 443
 444 static void
 445 i915_destroy_screen(struct pipe_screen *screen)
 446 {
 447    struct i915_screen *is = i915_screen(screen);
 448
 449    if (is->iws)
 450       is->iws->destroy(is->iws);
 451
 452    FREE(is);
 453 }
 454
 455 /**
 456  * Create a new i915_screen object
 457  */
 458 struct pipe_screen *
 459 i915_screen_create(struct i915_winsys *iws)
 460 {
 461    struct i915_screen *is = CALLOC_STRUCT(i915_screen);
 462
 463    if (!is)
 464       return NULL;
 465
 466    switch (iws->pci_id) {
 467    case PCI_CHIP_I915_G:
 468    case PCI_CHIP_I915_GM:
 469       is->is_i945 = FALSE;
 470       break;
 471
 472    case PCI_CHIP_I945_G:
 473    case PCI_CHIP_I945_GM:
 474    case PCI_CHIP_I945_GME:
 475    case PCI_CHIP_G33_G:
 476    case PCI_CHIP_Q33_G:
 477    case PCI_CHIP_Q35_G:
 478    case PCI_CHIP_PINEVIEW_G:
 479    case PCI_CHIP_PINEVIEW_M:
 480       is->is_i945 = TRUE;
 481       break;
 482
 483    default:
 484       debug_printf("%s: unknown pci id 0x%x, cannot create screen\n",
 485                    __FUNCTION__, iws->pci_id);
 486       FREE(is);
 487       return NULL;
 488    }
 489
 490    is->iws = iws;
 491
 492    is->base.destroy = i915_destroy_screen;
 493    is->base.flush_frontbuffer = i915_flush_frontbuffer;
 494
 495    is->base.get_name = i915_get_name;
 496    is->base.get_vendor = i915_get_vendor;
 497    is->base.get_param = i915_get_param;
 498    is->base.get_shader_param = i915_get_shader_param;
 499    is->base.get_paramf = i915_get_paramf;
 500    is->base.is_format_supported = i915_is_format_supported;
 501
 502    is->base.context_create = i915_create_context;
 503
 504    is->base.fence_reference = i915_fence_reference;
 505    is->base.fence_signalled = i915_fence_signalled;
 506    is->base.fence_finish = i915_fence_finish;
 507
 508    i915_init_screen_resource_functions(is);
 509
 510    i915_debug_init(is);
 511
 512    util_format_s3tc_init();
 513
 514    return &is->base;
 515 }