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 "VMware, Inc.";
  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    case PIPE_CAP_TGSI_TEXCOORD:
 191       return 0;
 192
 193    /* Unsupported features (boolean caps). */
 194    case PIPE_CAP_MAX_TEXTURE_ARRAY_LAYERS:
 195    case PIPE_CAP_DEPTH_CLIP_DISABLE:
 196    case PIPE_CAP_INDEP_BLEND_ENABLE:
 197    case PIPE_CAP_INDEP_BLEND_FUNC:
 198    case PIPE_CAP_SHADER_STENCIL_EXPORT:
 199    case PIPE_CAP_TEXTURE_MIRROR_CLAMP:
 200    case PIPE_CAP_TEXTURE_SWIZZLE:
 201    case PIPE_CAP_QUERY_TIME_ELAPSED:
 202    case PIPE_CAP_SM3:
 203    case PIPE_CAP_SEAMLESS_CUBE_MAP:
 204    case PIPE_CAP_SEAMLESS_CUBE_MAP_PER_TEXTURE:
 205    case PIPE_CAP_SCALED_RESOLVE:
 206    case PIPE_CAP_FRAGMENT_COLOR_CLAMPED:
 207    case PIPE_CAP_MIXED_COLORBUFFER_FORMATS:
 208    case PIPE_CAP_CONDITIONAL_RENDER:
 209    case PIPE_CAP_TEXTURE_BARRIER:
 210    case PIPE_CAP_TGSI_CAN_COMPACT_CONSTANTS:
 211    case PIPE_CAP_VERTEX_COLOR_UNCLAMPED:
 212    case PIPE_CAP_QUADS_FOLLOW_PROVOKING_VERTEX_CONVENTION:
 213    case PIPE_CAP_START_INSTANCE:
 214    case PIPE_CAP_QUERY_TIMESTAMP:
 215    case PIPE_CAP_QUERY_PIPELINE_STATISTICS:
 216    case PIPE_CAP_TEXTURE_MULTISAMPLE:
 217    case PIPE_CAP_MIN_MAP_BUFFER_ALIGNMENT:
 218    case PIPE_CAP_TEXTURE_BORDER_COLOR_QUIRK:
 219       return 0;
 220    case PIPE_CAP_MAX_DUAL_SOURCE_RENDER_TARGETS:
 221    case PIPE_CAP_STREAM_OUTPUT_PAUSE_RESUME:
 222    case PIPE_CAP_VERTEX_BUFFER_OFFSET_4BYTE_ALIGNED_ONLY:
 223    case PIPE_CAP_VERTEX_BUFFER_STRIDE_4BYTE_ALIGNED_ONLY:
 224    case PIPE_CAP_VERTEX_ELEMENT_SRC_OFFSET_4BYTE_ALIGNED_ONLY:
 225    case PIPE_CAP_TGSI_VS_LAYER:
 226        return 0;
 227
 228    case PIPE_CAP_GLSL_FEATURE_LEVEL:
 229       return 120;
 230
 231    case PIPE_CAP_CONSTANT_BUFFER_OFFSET_ALIGNMENT:
 232       return 16;
 233
 234    /* Features we can lie about (boolean caps). */
 235    case PIPE_CAP_OCCLUSION_QUERY:
 236       return is->debug.lie ? 1 : 0;
 237
 238    /* Texturing. */
 239    case PIPE_CAP_MAX_COMBINED_SAMPLERS:
 240       return i915_get_shader_param(screen,
 241                                    PIPE_SHADER_VERTEX,
 242                                    PIPE_SHADER_CAP_MAX_TEXTURE_SAMPLERS) +
 243              i915_get_shader_param(screen,
 244                                    PIPE_SHADER_FRAGMENT,
 245                                    PIPE_SHADER_CAP_MAX_TEXTURE_SAMPLERS);
 246    case PIPE_CAP_MAX_TEXTURE_2D_LEVELS:
 247       return I915_MAX_TEXTURE_2D_LEVELS;
 248    case PIPE_CAP_MAX_TEXTURE_3D_LEVELS:
 249       return I915_MAX_TEXTURE_3D_LEVELS;
 250    case PIPE_CAP_MAX_TEXTURE_CUBE_LEVELS:
 251       return I915_MAX_TEXTURE_2D_LEVELS;
 252    case PIPE_CAP_MIN_TEXEL_OFFSET:
 253    case PIPE_CAP_MAX_TEXEL_OFFSET:
 254    case PIPE_CAP_MAX_STREAM_OUTPUT_BUFFERS:
 255    case PIPE_CAP_MAX_STREAM_OUTPUT_SEPARATE_COMPONENTS:
 256    case PIPE_CAP_MAX_STREAM_OUTPUT_INTERLEAVED_COMPONENTS:
 257       return 0;
 258
 259    /* Render targets. */
 260    case PIPE_CAP_MAX_RENDER_TARGETS:
 261       return 1;
 262
 263    /* Fragment coordinate conventions. */
 264    case PIPE_CAP_TGSI_FS_COORD_ORIGIN_UPPER_LEFT:
 265    case PIPE_CAP_TGSI_FS_COORD_PIXEL_CENTER_HALF_INTEGER:
 266       return 1;
 267    case PIPE_CAP_TGSI_FS_COORD_ORIGIN_LOWER_LEFT:
 268    case PIPE_CAP_TGSI_FS_COORD_PIXEL_CENTER_INTEGER:
 269       return 0;
 270    case PIPE_CAP_ENDIANNESS:
 271       return PIPE_ENDIAN_LITTLE;
 272
 273    default:
 274       debug_printf("%s: Unknown cap %u.\n", __FUNCTION__, cap);
 275       return 0;
 276    }
 277 }
 278
 279 static float
 280 i915_get_paramf(struct pipe_screen *screen, enum pipe_capf cap)
 281 {
 282    switch(cap) {
 283    case PIPE_CAPF_MAX_LINE_WIDTH:
 284       /* fall-through */
 285    case PIPE_CAPF_MAX_LINE_WIDTH_AA:
 286       return 7.5;
 287
 288    case PIPE_CAPF_MAX_POINT_WIDTH:
 289       /* fall-through */
 290    case PIPE_CAPF_MAX_POINT_WIDTH_AA:
 291       return 255.0;
 292
 293    case PIPE_CAPF_MAX_TEXTURE_ANISOTROPY:
 294       return 4.0;
 295
 296    case PIPE_CAPF_MAX_TEXTURE_LOD_BIAS:
 297       return 16.0;
 298
 299    default:
 300       debug_printf("%s: Unknown cap %u.\n", __FUNCTION__, cap);
 301       return 0;
 302    }
 303 }
 304
 305 boolean
 306 i915_is_format_supported(struct pipe_screen *screen,
 307                          enum pipe_format format,
 308                          enum pipe_texture_target target,
 309                          unsigned sample_count,
 310                          unsigned tex_usage)
 311 {
 312    static const enum pipe_format tex_supported[] = {
 313       PIPE_FORMAT_B8G8R8A8_UNORM,
 314       PIPE_FORMAT_B8G8R8A8_SRGB,
 315       PIPE_FORMAT_B8G8R8X8_UNORM,
 316       PIPE_FORMAT_R8G8B8A8_UNORM,
 317       PIPE_FORMAT_R8G8B8X8_UNORM,
 318       PIPE_FORMAT_B5G6R5_UNORM,
 319       PIPE_FORMAT_B10G10R10A2_UNORM,
 320       PIPE_FORMAT_L8_UNORM,
 321       PIPE_FORMAT_A8_UNORM,
 322       PIPE_FORMAT_I8_UNORM,
 323       PIPE_FORMAT_L8A8_UNORM,
 324       PIPE_FORMAT_UYVY,
 325       PIPE_FORMAT_YUYV,
 326       /* XXX why not?
 327       PIPE_FORMAT_Z16_UNORM, */
 328       PIPE_FORMAT_DXT1_RGB,
 329       PIPE_FORMAT_DXT1_RGBA,
 330       PIPE_FORMAT_DXT3_RGBA,
 331       PIPE_FORMAT_DXT5_RGBA,
 332       PIPE_FORMAT_Z24X8_UNORM,
 333       PIPE_FORMAT_Z24_UNORM_S8_UINT,
 334       PIPE_FORMAT_NONE  /* list terminator */
 335    };
 336    static const enum pipe_format render_supported[] = {
 337       PIPE_FORMAT_B8G8R8A8_UNORM,
 338       PIPE_FORMAT_B8G8R8X8_UNORM,
 339       PIPE_FORMAT_R8G8B8A8_UNORM,
 340       PIPE_FORMAT_R8G8B8X8_UNORM,
 341       PIPE_FORMAT_B5G6R5_UNORM,
 342       PIPE_FORMAT_B10G10R10A2_UNORM,
 343       PIPE_FORMAT_L8_UNORM,
 344       PIPE_FORMAT_A8_UNORM,
 345       PIPE_FORMAT_I8_UNORM,
 346       PIPE_FORMAT_NONE  /* list terminator */
 347    };
 348    static const enum pipe_format depth_supported[] = {
 349       /* XXX why not?
 350       PIPE_FORMAT_Z16_UNORM, */
 351       PIPE_FORMAT_Z24X8_UNORM,
 352       PIPE_FORMAT_Z24_UNORM_S8_UINT,
 353       PIPE_FORMAT_NONE  /* list terminator */
 354    };
 355    const enum pipe_format *list;
 356    uint i;
 357
 358    if (!util_format_is_supported(format, tex_usage))
 359       return FALSE;
 360
 361    if (sample_count > 1)
 362       return FALSE;
 363
 364    if(tex_usage & PIPE_BIND_DEPTH_STENCIL)
 365       list = depth_supported;
 366    else if (tex_usage & PIPE_BIND_RENDER_TARGET)
 367       list = render_supported;
 368    else if (tex_usage & PIPE_BIND_SAMPLER_VIEW)
 369       list = tex_supported;
 370    else
 371       return TRUE; /* PIPE_BIND_{VERTEX,INDEX}_BUFFER */
 372
 373    for (i = 0; list[i] != PIPE_FORMAT_NONE; i++) {
 374       if (list[i] == format)
 375          return TRUE;
 376    }
 377
 378    return FALSE;
 379 }
 380
 381
 382 /*
 383  * Fence functions
 384  */
 385
 386
 387 static void
 388 i915_fence_reference(struct pipe_screen *screen,
 389                      struct pipe_fence_handle **ptr,
 390                      struct pipe_fence_handle *fence)
 391 {
 392    struct i915_screen *is = i915_screen(screen);
 393
 394    is->iws->fence_reference(is->iws, ptr, fence);
 395 }
 396
 397 static boolean
 398 i915_fence_signalled(struct pipe_screen *screen,
 399                      struct pipe_fence_handle *fence)
 400 {
 401    struct i915_screen *is = i915_screen(screen);
 402
 403    return is->iws->fence_signalled(is->iws, fence) == 1;
 404 }
 405
 406 static boolean
 407 i915_fence_finish(struct pipe_screen *screen,
 408                   struct pipe_fence_handle *fence,
 409                   uint64_t timeout)
 410 {
 411    struct i915_screen *is = i915_screen(screen);
 412
 413    return is->iws->fence_finish(is->iws, fence) == 1;
 414 }
 415
 416
 417 /*
 418  * Generic functions
 419  */
 420
 421
 422 static void
 423 i915_flush_frontbuffer(struct pipe_screen *screen,
 424                        struct pipe_resource *resource,
 425                        unsigned level, unsigned layer,
 426                        void *winsys_drawable_handle,
 427                        struct pipe_box *sub_box)
 428 {
 429    /* XXX: Dummy right now. */
 430    (void)screen;
 431    (void)resource;
 432    (void)level;
 433    (void)layer;
 434    (void)winsys_drawable_handle;
 435    (void)sub_box;
 436 }
 437
 438 static void
 439 i915_destroy_screen(struct pipe_screen *screen)
 440 {
 441    struct i915_screen *is = i915_screen(screen);
 442
 443    if (is->iws)
 444       is->iws->destroy(is->iws);
 445
 446    FREE(is);
 447 }
 448
 449 /**
 450  * Create a new i915_screen object
 451  */
 452 struct pipe_screen *
 453 i915_screen_create(struct i915_winsys *iws)
 454 {
 455    struct i915_screen *is = CALLOC_STRUCT(i915_screen);
 456
 457    if (!is)
 458       return NULL;
 459
 460    switch (iws->pci_id) {
 461    case PCI_CHIP_I915_G:
 462    case PCI_CHIP_I915_GM:
 463       is->is_i945 = FALSE;
 464       break;
 465
 466    case PCI_CHIP_I945_G:
 467    case PCI_CHIP_I945_GM:
 468    case PCI_CHIP_I945_GME:
 469    case PCI_CHIP_G33_G:
 470    case PCI_CHIP_Q33_G:
 471    case PCI_CHIP_Q35_G:
 472    case PCI_CHIP_PINEVIEW_G:
 473    case PCI_CHIP_PINEVIEW_M:
 474       is->is_i945 = TRUE;
 475       break;
 476
 477    default:
 478       debug_printf("%s: unknown pci id 0x%x, cannot create screen\n",
 479                    __FUNCTION__, iws->pci_id);
 480       FREE(is);
 481       return NULL;
 482    }
 483
 484    is->iws = iws;
 485
 486    is->base.destroy = i915_destroy_screen;
 487    is->base.flush_frontbuffer = i915_flush_frontbuffer;
 488
 489    is->base.get_name = i915_get_name;
 490    is->base.get_vendor = i915_get_vendor;
 491    is->base.get_param = i915_get_param;
 492    is->base.get_shader_param = i915_get_shader_param;
 493    is->base.get_paramf = i915_get_paramf;
 494    is->base.is_format_supported = i915_is_format_supported;
 495
 496    is->base.context_create = i915_create_context;
 497
 498    is->base.fence_reference = i915_fence_reference;
 499    is->base.fence_signalled = i915_fence_signalled;
 500    is->base.fence_finish = i915_fence_finish;
 501
 502    i915_init_screen_resource_functions(is);
 503
 504    i915_debug_init(is);
 505
 506    util_format_s3tc_init();
 507
 508    return &is->base;
 509 }