src/gallium/drivers/i915/i915_screen.c

   1 /**************************************************************************
   2  *
   3  * Copyright 2008 Tungsten Graphics, Inc., Cedar Park, Texas.
   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 TUNGSTEN GRAPHICS 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          if (debug_get_bool_option("DRAW_USE_LLVM", TRUE))
 110             return PIPE_MAX_SAMPLERS;
 111          else
 112             return 0;
 113        default:
 114          return draw_get_shader_param(shader, cap);
 115       }
 116    case PIPE_SHADER_FRAGMENT:
 117       /* XXX: some of these are just shader model 2.0 values, fix this! */
 118       switch(cap) {
 119       case PIPE_SHADER_CAP_MAX_INSTRUCTIONS:
 120          return I915_MAX_ALU_INSN + I915_MAX_TEX_INSN;
 121       case PIPE_SHADER_CAP_MAX_ALU_INSTRUCTIONS:
 122          return I915_MAX_ALU_INSN;
 123       case PIPE_SHADER_CAP_MAX_TEX_INSTRUCTIONS:
 124          return I915_MAX_TEX_INSN;
 125       case PIPE_SHADER_CAP_MAX_TEX_INDIRECTIONS:
 126          return 8;
 127       case PIPE_SHADER_CAP_MAX_CONTROL_FLOW_DEPTH:
 128          return 0;
 129       case PIPE_SHADER_CAP_MAX_INPUTS:
 130          return 10;
 131       case PIPE_SHADER_CAP_MAX_CONSTS:
 132          return 32;
 133       case PIPE_SHADER_CAP_MAX_CONST_BUFFERS:
 134          return 1;
 135       case PIPE_SHADER_CAP_MAX_TEMPS:
 136          return 12; /* XXX: 12 -> 32 ? */
 137       case PIPE_SHADER_CAP_MAX_ADDRS:
 138          return 0;
 139       case PIPE_SHADER_CAP_MAX_PREDS:
 140          return 0;
 141       case PIPE_SHADER_CAP_TGSI_CONT_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          return I915_TEX_UNITS;
 154       default:
 155          debug_printf("%s: Unknown cap %u.\n", __FUNCTION__, cap);
 156          return 0;
 157       }
 158       break;
 159    default:
 160       return 0;
 161    }
 162
 163 }
 164
 165 static int
 166 i915_get_param(struct pipe_screen *screen, enum pipe_cap cap)
 167 {
 168    struct i915_screen *is = i915_screen(screen);
 169
 170    switch (cap) {
 171    /* Supported features (boolean caps). */
 172    case PIPE_CAP_ANISOTROPIC_FILTER:
 173    case PIPE_CAP_DEPTHSTENCIL_CLEAR_SEPARATE:
 174    case PIPE_CAP_NPOT_TEXTURES:
 175    case PIPE_CAP_POINT_SPRITE:
 176    case PIPE_CAP_PRIMITIVE_RESTART: /* draw module */
 177    case PIPE_CAP_TEXTURE_SHADOW_MAP:
 178    case PIPE_CAP_TWO_SIDED_STENCIL:
 179    case PIPE_CAP_VERTEX_ELEMENT_INSTANCE_DIVISOR:
 180    case PIPE_CAP_BLEND_EQUATION_SEPARATE:
 181    case PIPE_CAP_TGSI_INSTANCEID:
 182    case PIPE_CAP_VERTEX_COLOR_CLAMPED:
 183    case PIPE_CAP_USER_VERTEX_BUFFERS:
 184    case PIPE_CAP_USER_INDEX_BUFFERS:
 185    case PIPE_CAP_USER_CONSTANT_BUFFERS:
 186       return 1;
 187
 188    /* Unsupported features (boolean caps). */
 189    case PIPE_CAP_MAX_TEXTURE_ARRAY_LAYERS:
 190    case PIPE_CAP_DEPTH_CLIP_DISABLE:
 191    case PIPE_CAP_INDEP_BLEND_ENABLE:
 192    case PIPE_CAP_INDEP_BLEND_FUNC:
 193    case PIPE_CAP_SHADER_STENCIL_EXPORT:
 194    case PIPE_CAP_TEXTURE_MIRROR_CLAMP:
 195    case PIPE_CAP_TEXTURE_SWIZZLE:
 196    case PIPE_CAP_TIMER_QUERY:
 197    case PIPE_CAP_SM3:
 198    case PIPE_CAP_SEAMLESS_CUBE_MAP:
 199    case PIPE_CAP_SEAMLESS_CUBE_MAP_PER_TEXTURE:
 200    case PIPE_CAP_SCALED_RESOLVE:
 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_VARYINGS:
 206    case PIPE_CAP_TGSI_CAN_COMPACT_CONSTANTS:
 207    case PIPE_CAP_VERTEX_COLOR_UNCLAMPED:
 208    case PIPE_CAP_QUADS_FOLLOW_PROVOKING_VERTEX_CONVENTION:
 209    case PIPE_CAP_START_INSTANCE:
 210    case PIPE_CAP_QUERY_TIMESTAMP:
 211       return 0;
 212
 213    case PIPE_CAP_CONSTANT_BUFFER_OFFSET_ALIGNMENT:
 214       return 16;
 215
 216    /* Features we can lie about (boolean caps). */
 217    case PIPE_CAP_OCCLUSION_QUERY:
 218       return is->debug.lie ? 1 : 0;
 219
 220    /* Texturing. */
 221    case PIPE_CAP_MAX_COMBINED_SAMPLERS:
 222       return i915_get_shader_param(screen,
 223                                    PIPE_SHADER_VERTEX,
 224                                    PIPE_SHADER_CAP_MAX_TEXTURE_SAMPLERS) +
 225              i915_get_shader_param(screen,
 226                                    PIPE_SHADER_FRAGMENT,
 227                                    PIPE_SHADER_CAP_MAX_TEXTURE_SAMPLERS);
 228    case PIPE_CAP_MAX_TEXTURE_2D_LEVELS:
 229       return I915_MAX_TEXTURE_2D_LEVELS;
 230    case PIPE_CAP_MAX_TEXTURE_3D_LEVELS:
 231       return I915_MAX_TEXTURE_3D_LEVELS;
 232    case PIPE_CAP_MAX_TEXTURE_CUBE_LEVELS:
 233       return I915_MAX_TEXTURE_2D_LEVELS;
 234    case PIPE_CAP_MIN_TEXEL_OFFSET:
 235    case PIPE_CAP_MAX_TEXEL_OFFSET:
 236    case PIPE_CAP_MAX_STREAM_OUTPUT_BUFFERS:
 237    case PIPE_CAP_MAX_STREAM_OUTPUT_SEPARATE_COMPONENTS:
 238    case PIPE_CAP_MAX_STREAM_OUTPUT_INTERLEAVED_COMPONENTS:
 239       return 0;
 240
 241    /* Render targets. */
 242    case PIPE_CAP_MAX_RENDER_TARGETS:
 243       return 1;
 244
 245    /* Fragment coordinate conventions. */
 246    case PIPE_CAP_TGSI_FS_COORD_ORIGIN_UPPER_LEFT:
 247    case PIPE_CAP_TGSI_FS_COORD_PIXEL_CENTER_HALF_INTEGER:
 248       return 1;
 249    case PIPE_CAP_TGSI_FS_COORD_ORIGIN_LOWER_LEFT:
 250    case PIPE_CAP_TGSI_FS_COORD_PIXEL_CENTER_INTEGER:
 251       return 0;
 252
 253    default:
 254       debug_printf("%s: Unknown cap %u.\n", __FUNCTION__, cap);
 255       return 0;
 256    }
 257 }
 258
 259 static float
 260 i915_get_paramf(struct pipe_screen *screen, enum pipe_capf cap)
 261 {
 262    switch(cap) {
 263    case PIPE_CAPF_MAX_LINE_WIDTH:
 264       /* fall-through */
 265    case PIPE_CAPF_MAX_LINE_WIDTH_AA:
 266       return 7.5;
 267
 268    case PIPE_CAPF_MAX_POINT_WIDTH:
 269       /* fall-through */
 270    case PIPE_CAPF_MAX_POINT_WIDTH_AA:
 271       return 255.0;
 272
 273    case PIPE_CAPF_MAX_TEXTURE_ANISOTROPY:
 274       return 4.0;
 275
 276    case PIPE_CAPF_MAX_TEXTURE_LOD_BIAS:
 277       return 16.0;
 278
 279    default:
 280       debug_printf("%s: Unknown cap %u.\n", __FUNCTION__, cap);
 281       return 0;
 282    }
 283 }
 284
 285 boolean
 286 i915_is_format_supported(struct pipe_screen *screen,
 287                          enum pipe_format format,
 288                          enum pipe_texture_target target,
 289                          unsigned sample_count,
 290                          unsigned tex_usage)
 291 {
 292    static const enum pipe_format tex_supported[] = {
 293       PIPE_FORMAT_B8G8R8A8_UNORM,
 294       PIPE_FORMAT_B8G8R8A8_SRGB,
 295       PIPE_FORMAT_B8G8R8X8_UNORM,
 296       PIPE_FORMAT_R8G8B8A8_UNORM,
 297       PIPE_FORMAT_R8G8B8X8_UNORM,
 298       PIPE_FORMAT_B5G6R5_UNORM,
 299       PIPE_FORMAT_B10G10R10A2_UNORM,
 300       PIPE_FORMAT_L8_UNORM,
 301       PIPE_FORMAT_A8_UNORM,
 302       PIPE_FORMAT_I8_UNORM,
 303       PIPE_FORMAT_L8A8_UNORM,
 304       PIPE_FORMAT_UYVY,
 305       PIPE_FORMAT_YUYV,
 306       /* XXX why not?
 307       PIPE_FORMAT_Z16_UNORM, */
 308       PIPE_FORMAT_DXT1_RGB,
 309       PIPE_FORMAT_DXT1_RGBA,
 310       PIPE_FORMAT_DXT3_RGBA,
 311       PIPE_FORMAT_DXT5_RGBA,
 312       PIPE_FORMAT_Z24X8_UNORM,
 313       PIPE_FORMAT_Z24_UNORM_S8_UINT,
 314       PIPE_FORMAT_NONE  /* list terminator */
 315    };
 316    static const enum pipe_format render_supported[] = {
 317       PIPE_FORMAT_B8G8R8A8_UNORM,
 318       PIPE_FORMAT_B8G8R8X8_UNORM,
 319       PIPE_FORMAT_R8G8B8A8_UNORM,
 320       PIPE_FORMAT_R8G8B8X8_UNORM,
 321       PIPE_FORMAT_B5G6R5_UNORM,
 322       PIPE_FORMAT_B10G10R10A2_UNORM,
 323       PIPE_FORMAT_L8_UNORM,
 324       PIPE_FORMAT_A8_UNORM,
 325       PIPE_FORMAT_I8_UNORM,
 326       PIPE_FORMAT_NONE  /* list terminator */
 327    };
 328    static const enum pipe_format depth_supported[] = {
 329       /* XXX why not?
 330       PIPE_FORMAT_Z16_UNORM, */
 331       PIPE_FORMAT_Z24X8_UNORM,
 332       PIPE_FORMAT_Z24_UNORM_S8_UINT,
 333       PIPE_FORMAT_NONE  /* list terminator */
 334    };
 335    const enum pipe_format *list;
 336    uint i;
 337
 338    if (!util_format_is_supported(format, tex_usage))
 339       return FALSE;
 340
 341    if (sample_count > 1)
 342       return FALSE;
 343
 344    if(tex_usage & PIPE_BIND_DEPTH_STENCIL)
 345       list = depth_supported;
 346    else if (tex_usage & PIPE_BIND_RENDER_TARGET)
 347       list = render_supported;
 348    else if (tex_usage & PIPE_BIND_SAMPLER_VIEW)
 349       list = tex_supported;
 350    else
 351       return TRUE; /* PIPE_BIND_{VERTEX,INDEX}_BUFFER */
 352
 353    for (i = 0; list[i] != PIPE_FORMAT_NONE; i++) {
 354       if (list[i] == format)
 355          return TRUE;
 356    }
 357
 358    return FALSE;
 359 }
 360
 361
 362 /*
 363  * Fence functions
 364  */
 365
 366
 367 static void
 368 i915_fence_reference(struct pipe_screen *screen,
 369                      struct pipe_fence_handle **ptr,
 370                      struct pipe_fence_handle *fence)
 371 {
 372    struct i915_screen *is = i915_screen(screen);
 373
 374    is->iws->fence_reference(is->iws, ptr, fence);
 375 }
 376
 377 static boolean
 378 i915_fence_signalled(struct pipe_screen *screen,
 379                      struct pipe_fence_handle *fence)
 380 {
 381    struct i915_screen *is = i915_screen(screen);
 382
 383    return is->iws->fence_signalled(is->iws, fence) == 1;
 384 }
 385
 386 static boolean
 387 i915_fence_finish(struct pipe_screen *screen,
 388                   struct pipe_fence_handle *fence,
 389                   uint64_t timeout)
 390 {
 391    struct i915_screen *is = i915_screen(screen);
 392
 393    return is->iws->fence_finish(is->iws, fence) == 1;
 394 }
 395
 396
 397 /*
 398  * Generic functions
 399  */
 400
 401
 402 static void
 403 i915_flush_frontbuffer(struct pipe_screen *screen,
 404                        struct pipe_resource *resource,
 405                        unsigned level, unsigned layer,
 406                        void *winsys_drawable_handle)
 407 {
 408    /* XXX: Dummy right now. */
 409    (void)screen;
 410    (void)resource;
 411    (void)level;
 412    (void)layer;
 413    (void)winsys_drawable_handle;
 414 }
 415
 416 static void
 417 i915_destroy_screen(struct pipe_screen *screen)
 418 {
 419    struct i915_screen *is = i915_screen(screen);
 420
 421    if (is->iws)
 422       is->iws->destroy(is->iws);
 423
 424    FREE(is);
 425 }
 426
 427 /**
 428  * Create a new i915_screen object
 429  */
 430 struct pipe_screen *
 431 i915_screen_create(struct i915_winsys *iws)
 432 {
 433    struct i915_screen *is = CALLOC_STRUCT(i915_screen);
 434
 435    if (!is)
 436       return NULL;
 437
 438    switch (iws->pci_id) {
 439    case PCI_CHIP_I915_G:
 440    case PCI_CHIP_I915_GM:
 441       is->is_i945 = FALSE;
 442       break;
 443
 444    case PCI_CHIP_I945_G:
 445    case PCI_CHIP_I945_GM:
 446    case PCI_CHIP_I945_GME:
 447    case PCI_CHIP_G33_G:
 448    case PCI_CHIP_Q33_G:
 449    case PCI_CHIP_Q35_G:
 450    case PCI_CHIP_PINEVIEW_G:
 451    case PCI_CHIP_PINEVIEW_M:
 452       is->is_i945 = TRUE;
 453       break;
 454
 455    default:
 456       debug_printf("%s: unknown pci id 0x%x, cannot create screen\n",
 457                    __FUNCTION__, iws->pci_id);
 458       FREE(is);
 459       return NULL;
 460    }
 461
 462    is->iws = iws;
 463
 464    is->base.destroy = i915_destroy_screen;
 465    is->base.flush_frontbuffer = i915_flush_frontbuffer;
 466
 467    is->base.get_name = i915_get_name;
 468    is->base.get_vendor = i915_get_vendor;
 469    is->base.get_param = i915_get_param;
 470    is->base.get_shader_param = i915_get_shader_param;
 471    is->base.get_paramf = i915_get_paramf;
 472    is->base.is_format_supported = i915_is_format_supported;
 473
 474    is->base.context_create = i915_create_context;
 475
 476    is->base.fence_reference = i915_fence_reference;
 477    is->base.fence_signalled = i915_fence_signalled;
 478    is->base.fence_finish = i915_fence_finish;
 479
 480    i915_init_screen_resource_functions(is);
 481
 482    i915_debug_init(is);
 483
 484    util_format_s3tc_init();
 485
 486    return &is->base;
 487 }