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_CONST_BUFFER_SIZE:
 133          return 32 * sizeof(float[4]);
 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_PREDS:
 139          return 0;
 140       case PIPE_SHADER_CAP_TGSI_CONT_SUPPORTED:
 141       case PIPE_SHADER_CAP_TGSI_SQRT_SUPPORTED:
 142          return 0;
 143       case PIPE_SHADER_CAP_INDIRECT_INPUT_ADDR:
 144       case PIPE_SHADER_CAP_INDIRECT_OUTPUT_ADDR:
 145       case PIPE_SHADER_CAP_INDIRECT_TEMP_ADDR:
 146       case PIPE_SHADER_CAP_INDIRECT_CONST_ADDR:
 147          return 1;
 148       case PIPE_SHADER_CAP_SUBROUTINES:
 149          return 0;
 150       case PIPE_SHADER_CAP_INTEGERS:
 151          return 0;
 152       case PIPE_SHADER_CAP_MAX_TEXTURE_SAMPLERS:
 153       case PIPE_SHADER_CAP_MAX_SAMPLER_VIEWS:
 154          return I915_TEX_UNITS;
 155       default:
 156          debug_printf("%s: Unknown cap %u.\n", __FUNCTION__, cap);
 157          return 0;
 158       }
 159       break;
 160    default:
 161       return 0;
 162    }
 163
 164 }
 165
 166 static int
 167 i915_get_param(struct pipe_screen *screen, enum pipe_cap cap)
 168 {
 169    struct i915_screen *is = i915_screen(screen);
 170
 171    switch (cap) {
 172    /* Supported features (boolean caps). */
 173    case PIPE_CAP_ANISOTROPIC_FILTER:
 174    case PIPE_CAP_NPOT_TEXTURES:
 175    case PIPE_CAP_MIXED_FRAMEBUFFER_SIZES:
 176    case PIPE_CAP_POINT_SPRITE:
 177    case PIPE_CAP_PRIMITIVE_RESTART: /* draw module */
 178    case PIPE_CAP_TEXTURE_SHADOW_MAP:
 179    case PIPE_CAP_TWO_SIDED_STENCIL:
 180    case PIPE_CAP_VERTEX_ELEMENT_INSTANCE_DIVISOR:
 181    case PIPE_CAP_BLEND_EQUATION_SEPARATE:
 182    case PIPE_CAP_TGSI_INSTANCEID:
 183    case PIPE_CAP_VERTEX_COLOR_CLAMPED:
 184    case PIPE_CAP_USER_VERTEX_BUFFERS:
 185    case PIPE_CAP_USER_INDEX_BUFFERS:
 186    case PIPE_CAP_USER_CONSTANT_BUFFERS:
 187       return 1;
 188
 189    /* Unsupported features (boolean caps). */
 190    case PIPE_CAP_MAX_TEXTURE_ARRAY_LAYERS:
 191    case PIPE_CAP_DEPTH_CLIP_DISABLE:
 192    case PIPE_CAP_INDEP_BLEND_ENABLE:
 193    case PIPE_CAP_INDEP_BLEND_FUNC:
 194    case PIPE_CAP_SHADER_STENCIL_EXPORT:
 195    case PIPE_CAP_TEXTURE_MIRROR_CLAMP:
 196    case PIPE_CAP_TEXTURE_SWIZZLE:
 197    case PIPE_CAP_QUERY_TIME_ELAPSED:
 198    case PIPE_CAP_SM3:
 199    case PIPE_CAP_SEAMLESS_CUBE_MAP:
 200    case PIPE_CAP_SEAMLESS_CUBE_MAP_PER_TEXTURE:
 201    case PIPE_CAP_FRAGMENT_COLOR_CLAMPED:
 202    case PIPE_CAP_MIXED_COLORBUFFER_FORMATS:
 203    case PIPE_CAP_CONDITIONAL_RENDER:
 204    case PIPE_CAP_TEXTURE_BARRIER:
 205    case PIPE_CAP_TGSI_CAN_COMPACT_CONSTANTS:
 206    case PIPE_CAP_VERTEX_COLOR_UNCLAMPED:
 207    case PIPE_CAP_QUADS_FOLLOW_PROVOKING_VERTEX_CONVENTION:
 208    case PIPE_CAP_START_INSTANCE:
 209    case PIPE_CAP_QUERY_TIMESTAMP:
 210    case PIPE_CAP_QUERY_PIPELINE_STATISTICS:
 211    case PIPE_CAP_TEXTURE_MULTISAMPLE:
 212    case PIPE_CAP_TEXTURE_BORDER_COLOR_QUIRK:
 213    case PIPE_CAP_CUBE_MAP_ARRAY:
 214    case PIPE_CAP_TEXTURE_BUFFER_OBJECTS:
 215    case PIPE_CAP_TGSI_TEXCOORD:
 216    case PIPE_CAP_PREFER_BLIT_BASED_TEXTURE_TRANSFER:
 217    case PIPE_CAP_MAX_TEXTURE_GATHER_COMPONENTS:
 218    case PIPE_CAP_TEXTURE_GATHER_SM5:
 219    case PIPE_CAP_FAKE_SW_MSAA:
 220    case PIPE_CAP_TEXTURE_QUERY_LOD:
 221    case PIPE_CAP_SAMPLE_SHADING:
 222    case PIPE_CAP_TEXTURE_GATHER_OFFSETS:
 223    case PIPE_CAP_TGSI_VS_WINDOW_SPACE_POSITION:
 224       return 0;
 225
 226    case PIPE_CAP_MAX_DUAL_SOURCE_RENDER_TARGETS:
 227    case PIPE_CAP_STREAM_OUTPUT_PAUSE_RESUME:
 228    case PIPE_CAP_VERTEX_BUFFER_OFFSET_4BYTE_ALIGNED_ONLY:
 229    case PIPE_CAP_VERTEX_BUFFER_STRIDE_4BYTE_ALIGNED_ONLY:
 230    case PIPE_CAP_VERTEX_ELEMENT_SRC_OFFSET_4BYTE_ALIGNED_ONLY:
 231    case PIPE_CAP_TGSI_VS_LAYER_VIEWPORT:
 232    case PIPE_CAP_BUFFER_MAP_PERSISTENT_COHERENT:
 233    case PIPE_CAP_DRAW_INDIRECT:
 234    case PIPE_CAP_TGSI_FS_FINE_DERIVATIVE:
 235       return 0;
 236
 237    case PIPE_CAP_MIN_MAP_BUFFER_ALIGNMENT:
 238       return 64;
 239
 240    case PIPE_CAP_GLSL_FEATURE_LEVEL:
 241       return 120;
 242
 243    case PIPE_CAP_CONSTANT_BUFFER_OFFSET_ALIGNMENT:
 244       return 16;
 245
 246    /* Features we can lie about (boolean caps). */
 247    case PIPE_CAP_OCCLUSION_QUERY:
 248       return is->debug.lie ? 1 : 0;
 249
 250    /* Texturing. */
 251    case PIPE_CAP_MAX_TEXTURE_2D_LEVELS:
 252       return I915_MAX_TEXTURE_2D_LEVELS;
 253    case PIPE_CAP_MAX_TEXTURE_3D_LEVELS:
 254       return I915_MAX_TEXTURE_3D_LEVELS;
 255    case PIPE_CAP_MAX_TEXTURE_CUBE_LEVELS:
 256       return I915_MAX_TEXTURE_2D_LEVELS;
 257    case PIPE_CAP_MIN_TEXEL_OFFSET:
 258    case PIPE_CAP_MAX_TEXEL_OFFSET:
 259    case PIPE_CAP_MIN_TEXTURE_GATHER_OFFSET:
 260    case PIPE_CAP_MAX_TEXTURE_GATHER_OFFSET:
 261    case PIPE_CAP_MAX_STREAM_OUTPUT_BUFFERS:
 262    case PIPE_CAP_MAX_STREAM_OUTPUT_SEPARATE_COMPONENTS:
 263    case PIPE_CAP_MAX_STREAM_OUTPUT_INTERLEAVED_COMPONENTS:
 264       return 0;
 265
 266    /* Render targets. */
 267    case PIPE_CAP_MAX_RENDER_TARGETS:
 268       return 1;
 269
 270    /* Geometry shader output, unsupported. */
 271    case PIPE_CAP_MAX_GEOMETRY_OUTPUT_VERTICES:
 272    case PIPE_CAP_MAX_GEOMETRY_TOTAL_OUTPUT_COMPONENTS:
 273    case PIPE_CAP_MAX_VERTEX_STREAMS:
 274       return 0;
 275
 276    /* Fragment coordinate conventions. */
 277    case PIPE_CAP_TGSI_FS_COORD_ORIGIN_UPPER_LEFT:
 278    case PIPE_CAP_TGSI_FS_COORD_PIXEL_CENTER_HALF_INTEGER:
 279       return 1;
 280    case PIPE_CAP_TGSI_FS_COORD_ORIGIN_LOWER_LEFT:
 281    case PIPE_CAP_TGSI_FS_COORD_PIXEL_CENTER_INTEGER:
 282       return 0;
 283    case PIPE_CAP_ENDIANNESS:
 284       return PIPE_ENDIAN_LITTLE;
 285
 286    default:
 287       debug_printf("%s: Unknown cap %u.\n", __FUNCTION__, cap);
 288       return 0;
 289    }
 290 }
 291
 292 static float
 293 i915_get_paramf(struct pipe_screen *screen, enum pipe_capf cap)
 294 {
 295    switch(cap) {
 296    case PIPE_CAPF_MAX_LINE_WIDTH:
 297       /* fall-through */
 298    case PIPE_CAPF_MAX_LINE_WIDTH_AA:
 299       return 7.5;
 300
 301    case PIPE_CAPF_MAX_POINT_WIDTH:
 302       /* fall-through */
 303    case PIPE_CAPF_MAX_POINT_WIDTH_AA:
 304       return 255.0;
 305
 306    case PIPE_CAPF_MAX_TEXTURE_ANISOTROPY:
 307       return 4.0;
 308
 309    case PIPE_CAPF_MAX_TEXTURE_LOD_BIAS:
 310       return 16.0;
 311
 312    default:
 313       debug_printf("%s: Unknown cap %u.\n", __FUNCTION__, cap);
 314       return 0;
 315    }
 316 }
 317
 318 boolean
 319 i915_is_format_supported(struct pipe_screen *screen,
 320                          enum pipe_format format,
 321                          enum pipe_texture_target target,
 322                          unsigned sample_count,
 323                          unsigned tex_usage)
 324 {
 325    static const enum pipe_format tex_supported[] = {
 326       PIPE_FORMAT_B8G8R8A8_UNORM,
 327       PIPE_FORMAT_B8G8R8A8_SRGB,
 328       PIPE_FORMAT_B8G8R8X8_UNORM,
 329       PIPE_FORMAT_R8G8B8A8_UNORM,
 330       PIPE_FORMAT_R8G8B8X8_UNORM,
 331       PIPE_FORMAT_B5G6R5_UNORM,
 332       PIPE_FORMAT_B10G10R10A2_UNORM,
 333       PIPE_FORMAT_L8_UNORM,
 334       PIPE_FORMAT_A8_UNORM,
 335       PIPE_FORMAT_I8_UNORM,
 336       PIPE_FORMAT_L8A8_UNORM,
 337       PIPE_FORMAT_UYVY,
 338       PIPE_FORMAT_YUYV,
 339       /* XXX why not?
 340       PIPE_FORMAT_Z16_UNORM, */
 341       PIPE_FORMAT_DXT1_RGB,
 342       PIPE_FORMAT_DXT1_RGBA,
 343       PIPE_FORMAT_DXT3_RGBA,
 344       PIPE_FORMAT_DXT5_RGBA,
 345       PIPE_FORMAT_Z24X8_UNORM,
 346       PIPE_FORMAT_Z24_UNORM_S8_UINT,
 347       PIPE_FORMAT_NONE  /* list terminator */
 348    };
 349    static const enum pipe_format render_supported[] = {
 350       PIPE_FORMAT_B8G8R8A8_UNORM,
 351       PIPE_FORMAT_B8G8R8X8_UNORM,
 352       PIPE_FORMAT_R8G8B8A8_UNORM,
 353       PIPE_FORMAT_R8G8B8X8_UNORM,
 354       PIPE_FORMAT_B5G6R5_UNORM,
 355       PIPE_FORMAT_B10G10R10A2_UNORM,
 356       PIPE_FORMAT_L8_UNORM,
 357       PIPE_FORMAT_A8_UNORM,
 358       PIPE_FORMAT_I8_UNORM,
 359       PIPE_FORMAT_NONE  /* list terminator */
 360    };
 361    static const enum pipe_format depth_supported[] = {
 362       /* XXX why not?
 363       PIPE_FORMAT_Z16_UNORM, */
 364       PIPE_FORMAT_Z24X8_UNORM,
 365       PIPE_FORMAT_Z24_UNORM_S8_UINT,
 366       PIPE_FORMAT_NONE  /* list terminator */
 367    };
 368    const enum pipe_format *list;
 369    uint i;
 370
 371    if (!util_format_is_supported(format, tex_usage))
 372       return FALSE;
 373
 374    if (sample_count > 1)
 375       return FALSE;
 376
 377    if(tex_usage & PIPE_BIND_DEPTH_STENCIL)
 378       list = depth_supported;
 379    else if (tex_usage & PIPE_BIND_RENDER_TARGET)
 380       list = render_supported;
 381    else if (tex_usage & PIPE_BIND_SAMPLER_VIEW)
 382       list = tex_supported;
 383    else
 384       return TRUE; /* PIPE_BIND_{VERTEX,INDEX}_BUFFER */
 385
 386    for (i = 0; list[i] != PIPE_FORMAT_NONE; i++) {
 387       if (list[i] == format)
 388          return TRUE;
 389    }
 390
 391    return FALSE;
 392 }
 393
 394
 395 /*
 396  * Fence functions
 397  */
 398
 399
 400 static void
 401 i915_fence_reference(struct pipe_screen *screen,
 402                      struct pipe_fence_handle **ptr,
 403                      struct pipe_fence_handle *fence)
 404 {
 405    struct i915_screen *is = i915_screen(screen);
 406
 407    is->iws->fence_reference(is->iws, ptr, fence);
 408 }
 409
 410 static boolean
 411 i915_fence_signalled(struct pipe_screen *screen,
 412                      struct pipe_fence_handle *fence)
 413 {
 414    struct i915_screen *is = i915_screen(screen);
 415
 416    return is->iws->fence_signalled(is->iws, fence) == 1;
 417 }
 418
 419 static boolean
 420 i915_fence_finish(struct pipe_screen *screen,
 421                   struct pipe_fence_handle *fence,
 422                   uint64_t timeout)
 423 {
 424    struct i915_screen *is = i915_screen(screen);
 425
 426    return is->iws->fence_finish(is->iws, fence) == 1;
 427 }
 428
 429
 430 /*
 431  * Generic functions
 432  */
 433
 434
 435 static void
 436 i915_flush_frontbuffer(struct pipe_screen *screen,
 437                        struct pipe_resource *resource,
 438                        unsigned level, unsigned layer,
 439                        void *winsys_drawable_handle,
 440                        struct pipe_box *sub_box)
 441 {
 442    /* XXX: Dummy right now. */
 443    (void)screen;
 444    (void)resource;
 445    (void)level;
 446    (void)layer;
 447    (void)winsys_drawable_handle;
 448    (void)sub_box;
 449 }
 450
 451 static void
 452 i915_destroy_screen(struct pipe_screen *screen)
 453 {
 454    struct i915_screen *is = i915_screen(screen);
 455
 456    if (is->iws)
 457       is->iws->destroy(is->iws);
 458
 459    FREE(is);
 460 }
 461
 462 /**
 463  * Create a new i915_screen object
 464  */
 465 struct pipe_screen *
 466 i915_screen_create(struct i915_winsys *iws)
 467 {
 468    struct i915_screen *is = CALLOC_STRUCT(i915_screen);
 469
 470    if (!is)
 471       return NULL;
 472
 473    switch (iws->pci_id) {
 474    case PCI_CHIP_I915_G:
 475    case PCI_CHIP_I915_GM:
 476       is->is_i945 = FALSE;
 477       break;
 478
 479    case PCI_CHIP_I945_G:
 480    case PCI_CHIP_I945_GM:
 481    case PCI_CHIP_I945_GME:
 482    case PCI_CHIP_G33_G:
 483    case PCI_CHIP_Q33_G:
 484    case PCI_CHIP_Q35_G:
 485    case PCI_CHIP_PINEVIEW_G:
 486    case PCI_CHIP_PINEVIEW_M:
 487       is->is_i945 = TRUE;
 488       break;
 489
 490    default:
 491       debug_printf("%s: unknown pci id 0x%x, cannot create screen\n",
 492                    __FUNCTION__, iws->pci_id);
 493       FREE(is);
 494       return NULL;
 495    }
 496
 497    is->iws = iws;
 498
 499    is->base.destroy = i915_destroy_screen;
 500    is->base.flush_frontbuffer = i915_flush_frontbuffer;
 501
 502    is->base.get_name = i915_get_name;
 503    is->base.get_vendor = i915_get_vendor;
 504    is->base.get_param = i915_get_param;
 505    is->base.get_shader_param = i915_get_shader_param;
 506    is->base.get_paramf = i915_get_paramf;
 507    is->base.is_format_supported = i915_is_format_supported;
 508
 509    is->base.context_create = i915_create_context;
 510
 511    is->base.fence_reference = i915_fence_reference;
 512    is->base.fence_signalled = i915_fence_signalled;
 513    is->base.fence_finish = i915_fence_finish;
 514
 515    i915_init_screen_resource_functions(is);
 516
 517    i915_debug_init(is);
 518
 519    util_format_s3tc_init();
 520
 521    return &is->base;
 522 }