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