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_VERTEX_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       case PIPE_SHADER_CAP_OUTPUT_READ:
 155          return 0;
 156       default:
 157          debug_printf("%s: Unknown cap %u.\n", __FUNCTION__, cap);
 158          return 0;
 159       }
 160       break;
 161    default:
 162       return 0;
 163    }
 164
 165 }
 166
 167 static int
 168 i915_get_param(struct pipe_screen *screen, enum pipe_cap cap)
 169 {
 170    struct i915_screen *is = i915_screen(screen);
 171
 172    switch (cap) {
 173    /* Supported features (boolean caps). */
 174    case PIPE_CAP_ANISOTROPIC_FILTER:
 175    case PIPE_CAP_DEPTHSTENCIL_CLEAR_SEPARATE:
 176    case PIPE_CAP_NPOT_TEXTURES:
 177    case PIPE_CAP_POINT_SPRITE:
 178    case PIPE_CAP_PRIMITIVE_RESTART: /* draw module */
 179    case PIPE_CAP_TEXTURE_SHADOW_MAP:
 180    case PIPE_CAP_TWO_SIDED_STENCIL:
 181    case PIPE_CAP_VERTEX_ELEMENT_INSTANCE_DIVISOR:
 182    case PIPE_CAP_BLEND_EQUATION_SEPARATE:
 183    case PIPE_CAP_TGSI_INSTANCEID:
 184       return 1;
 185
 186    /* Unsupported features (boolean caps). */
 187    case PIPE_CAP_MAX_TEXTURE_ARRAY_LAYERS:
 188    case PIPE_CAP_DEPTH_CLAMP:
 189    case PIPE_CAP_INDEP_BLEND_ENABLE:
 190    case PIPE_CAP_INDEP_BLEND_FUNC:
 191    case PIPE_CAP_SHADER_STENCIL_EXPORT:
 192    case PIPE_CAP_TEXTURE_MIRROR_CLAMP:
 193    case PIPE_CAP_TEXTURE_SWIZZLE:
 194    case PIPE_CAP_TIMER_QUERY:
 195    case PIPE_CAP_SM3:
 196    case PIPE_CAP_SEAMLESS_CUBE_MAP:
 197    case PIPE_CAP_SEAMLESS_CUBE_MAP_PER_TEXTURE:
 198    case PIPE_CAP_FRAGMENT_COLOR_CLAMP_CONTROL:
 199    case PIPE_CAP_MIXED_COLORBUFFER_FORMATS:
 200    case PIPE_CAP_CONDITIONAL_RENDER:
 201    case PIPE_CAP_TEXTURE_BARRIER:
 202       return 0;
 203
 204    /* Features we can lie about (boolean caps). */
 205    case PIPE_CAP_OCCLUSION_QUERY:
 206       return is->debug.lie ? 1 : 0;
 207
 208    /* Texturing. */
 209    case PIPE_CAP_MAX_COMBINED_SAMPLERS:
 210       return i915_get_shader_param(screen,
 211                                    PIPE_SHADER_VERTEX,
 212                                    PIPE_SHADER_CAP_MAX_TEXTURE_SAMPLERS) +
 213              i915_get_shader_param(screen,
 214                                    PIPE_SHADER_FRAGMENT,
 215                                    PIPE_SHADER_CAP_MAX_TEXTURE_SAMPLERS);
 216    case PIPE_CAP_MAX_TEXTURE_2D_LEVELS:
 217       return I915_MAX_TEXTURE_2D_LEVELS;
 218    case PIPE_CAP_MAX_TEXTURE_3D_LEVELS:
 219       return I915_MAX_TEXTURE_3D_LEVELS;
 220    case PIPE_CAP_MAX_TEXTURE_CUBE_LEVELS:
 221       return I915_MAX_TEXTURE_2D_LEVELS;
 222    case PIPE_CAP_MIN_TEXEL_OFFSET:
 223    case PIPE_CAP_MAX_TEXEL_OFFSET:
 224       return 0;
 225
 226    /* Render targets. */
 227    case PIPE_CAP_MAX_RENDER_TARGETS:
 228       return 1;
 229
 230    /* Fragment coordinate conventions. */
 231    case PIPE_CAP_TGSI_FS_COORD_ORIGIN_UPPER_LEFT:
 232    case PIPE_CAP_TGSI_FS_COORD_PIXEL_CENTER_HALF_INTEGER:
 233       return 1;
 234    case PIPE_CAP_TGSI_FS_COORD_ORIGIN_LOWER_LEFT:
 235    case PIPE_CAP_TGSI_FS_COORD_PIXEL_CENTER_INTEGER:
 236       return 0;
 237
 238    default:
 239       debug_printf("%s: Unknown cap %u.\n", __FUNCTION__, cap);
 240       return 0;
 241    }
 242 }
 243
 244 static float
 245 i915_get_paramf(struct pipe_screen *screen, enum pipe_capf cap)
 246 {
 247    switch(cap) {
 248    case PIPE_CAPF_MAX_LINE_WIDTH:
 249       /* fall-through */
 250    case PIPE_CAPF_MAX_LINE_WIDTH_AA:
 251       return 7.5;
 252
 253    case PIPE_CAPF_MAX_POINT_WIDTH:
 254       /* fall-through */
 255    case PIPE_CAPF_MAX_POINT_WIDTH_AA:
 256       return 255.0;
 257
 258    case PIPE_CAPF_MAX_TEXTURE_ANISOTROPY:
 259       return 4.0;
 260
 261    case PIPE_CAPF_MAX_TEXTURE_LOD_BIAS:
 262       return 16.0;
 263
 264    default:
 265       debug_printf("%s: Unknown cap %u.\n", __FUNCTION__, cap);
 266       return 0;
 267    }
 268 }
 269
 270 boolean
 271 i915_is_format_supported(struct pipe_screen *screen,
 272                          enum pipe_format format,
 273                          enum pipe_texture_target target,
 274                          unsigned sample_count,
 275                          unsigned tex_usage)
 276 {
 277    static const enum pipe_format tex_supported[] = {
 278       PIPE_FORMAT_B8G8R8A8_UNORM,
 279       PIPE_FORMAT_B8G8R8X8_UNORM,
 280       PIPE_FORMAT_R8G8B8A8_UNORM,
 281       PIPE_FORMAT_R8G8B8X8_UNORM,
 282       PIPE_FORMAT_B5G6R5_UNORM,
 283       PIPE_FORMAT_B10G10R10A2_UNORM,
 284       PIPE_FORMAT_L8_UNORM,
 285       PIPE_FORMAT_A8_UNORM,
 286       PIPE_FORMAT_I8_UNORM,
 287       PIPE_FORMAT_L8A8_UNORM,
 288       PIPE_FORMAT_UYVY,
 289       PIPE_FORMAT_YUYV,
 290       /* XXX why not?
 291       PIPE_FORMAT_Z16_UNORM, */
 292       PIPE_FORMAT_DXT1_RGB,
 293       PIPE_FORMAT_DXT1_RGBA,
 294       PIPE_FORMAT_DXT3_RGBA,
 295       PIPE_FORMAT_DXT5_RGBA,
 296       PIPE_FORMAT_Z24X8_UNORM,
 297       PIPE_FORMAT_Z24_UNORM_S8_UINT,
 298       PIPE_FORMAT_NONE  /* list terminator */
 299    };
 300    static const enum pipe_format render_supported[] = {
 301       PIPE_FORMAT_B8G8R8A8_UNORM,
 302       PIPE_FORMAT_B8G8R8X8_UNORM,
 303       PIPE_FORMAT_R8G8B8A8_UNORM,
 304       PIPE_FORMAT_R8G8B8X8_UNORM,
 305       PIPE_FORMAT_B5G6R5_UNORM,
 306       PIPE_FORMAT_B10G10R10A2_UNORM,
 307       PIPE_FORMAT_L8_UNORM,
 308       PIPE_FORMAT_A8_UNORM,
 309       PIPE_FORMAT_I8_UNORM,
 310       PIPE_FORMAT_NONE  /* list terminator */
 311    };
 312    static const enum pipe_format depth_supported[] = {
 313       /* XXX why not?
 314       PIPE_FORMAT_Z16_UNORM, */
 315       PIPE_FORMAT_Z24X8_UNORM,
 316       PIPE_FORMAT_Z24_UNORM_S8_UINT,
 317       PIPE_FORMAT_NONE  /* list terminator */
 318    };
 319    const enum pipe_format *list;
 320    uint i;
 321
 322    if (!util_format_is_supported(format, tex_usage))
 323       return FALSE;
 324
 325    if (sample_count > 1)
 326       return FALSE;
 327
 328    if(tex_usage & PIPE_BIND_DEPTH_STENCIL)
 329       list = depth_supported;
 330    else if (tex_usage & PIPE_BIND_RENDER_TARGET)
 331       list = render_supported;
 332    else
 333       list = tex_supported;
 334
 335    for (i = 0; list[i] != PIPE_FORMAT_NONE; i++) {
 336       if (list[i] == format)
 337          return TRUE;
 338    }
 339
 340    return FALSE;
 341 }
 342
 343
 344 /*
 345  * Fence functions
 346  */
 347
 348
 349 static void
 350 i915_fence_reference(struct pipe_screen *screen,
 351                      struct pipe_fence_handle **ptr,
 352                      struct pipe_fence_handle *fence)
 353 {
 354    struct i915_screen *is = i915_screen(screen);
 355
 356    is->iws->fence_reference(is->iws, ptr, fence);
 357 }
 358
 359 static boolean
 360 i915_fence_signalled(struct pipe_screen *screen,
 361                      struct pipe_fence_handle *fence)
 362 {
 363    struct i915_screen *is = i915_screen(screen);
 364
 365    return is->iws->fence_signalled(is->iws, fence) == 0;
 366 }
 367
 368 static boolean
 369 i915_fence_finish(struct pipe_screen *screen,
 370                   struct pipe_fence_handle *fence,
 371                   uint64_t timeout)
 372 {
 373    struct i915_screen *is = i915_screen(screen);
 374
 375    return is->iws->fence_finish(is->iws, fence) == 0;
 376 }
 377
 378
 379 /*
 380  * Generic functions
 381  */
 382
 383
 384 static void
 385 i915_flush_frontbuffer(struct pipe_screen *screen,
 386                        struct pipe_resource *resource,
 387                        unsigned level, unsigned layer,
 388                        void *winsys_drawable_handle)
 389 {
 390    /* XXX: Dummy right now. */
 391    (void)screen;
 392    (void)resource;
 393    (void)level;
 394    (void)layer;
 395    (void)winsys_drawable_handle;
 396 }
 397
 398 static void
 399 i915_destroy_screen(struct pipe_screen *screen)
 400 {
 401    struct i915_screen *is = i915_screen(screen);
 402
 403    if (is->iws)
 404       is->iws->destroy(is->iws);
 405
 406    FREE(is);
 407 }
 408
 409 /**
 410  * Create a new i915_screen object
 411  */
 412 struct pipe_screen *
 413 i915_screen_create(struct i915_winsys *iws)
 414 {
 415    struct i915_screen *is = CALLOC_STRUCT(i915_screen);
 416
 417    if (!is)
 418       return NULL;
 419
 420    switch (iws->pci_id) {
 421    case PCI_CHIP_I915_G:
 422    case PCI_CHIP_I915_GM:
 423       is->is_i945 = FALSE;
 424       break;
 425
 426    case PCI_CHIP_I945_G:
 427    case PCI_CHIP_I945_GM:
 428    case PCI_CHIP_I945_GME:
 429    case PCI_CHIP_G33_G:
 430    case PCI_CHIP_Q33_G:
 431    case PCI_CHIP_Q35_G:
 432    case PCI_CHIP_PINEVIEW_G:
 433    case PCI_CHIP_PINEVIEW_M:
 434       is->is_i945 = TRUE;
 435       break;
 436
 437    default:
 438       debug_printf("%s: unknown pci id 0x%x, cannot create screen\n",
 439                    __FUNCTION__, iws->pci_id);
 440       FREE(is);
 441       return NULL;
 442    }
 443
 444    is->iws = iws;
 445
 446    is->base.winsys = NULL;
 447
 448    is->base.destroy = i915_destroy_screen;
 449    is->base.flush_frontbuffer = i915_flush_frontbuffer;
 450
 451    is->base.get_name = i915_get_name;
 452    is->base.get_vendor = i915_get_vendor;
 453    is->base.get_param = i915_get_param;
 454    is->base.get_shader_param = i915_get_shader_param;
 455    is->base.get_paramf = i915_get_paramf;
 456    is->base.is_format_supported = i915_is_format_supported;
 457
 458    is->base.context_create = i915_create_context;
 459
 460    is->base.fence_reference = i915_fence_reference;
 461    is->base.fence_signalled = i915_fence_signalled;
 462    is->base.fence_finish = i915_fence_finish;
 463
 464    i915_init_screen_resource_functions(is);
 465
 466    i915_debug_init(is);
 467
 468    util_format_s3tc_init();
 469
 470    return &is->base;
 471 }