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_inlines.h"
  31 #include "util/u_memory.h"
  32 #include "util/u_string.h"
  33
  34 #include "i915_reg.h"
  35 #include "i915_debug.h"
  36 #include "i915_context.h"
  37 #include "i915_screen.h"
  38 #include "i915_resource.h"
  39 #include "i915_winsys.h"
  40 #include "i915_public.h"
  41
  42
  43 /*
  44  * Probe functions
  45  */
  46
  47
  48 static const char *
  49 i915_get_vendor(struct pipe_screen *screen)
  50 {
  51    return "VMware, Inc.";
  52 }
  53
  54 static const char *
  55 i915_get_name(struct pipe_screen *screen)
  56 {
  57    static char buffer[128];
  58    const char *chipset;
  59
  60    switch (i915_screen(screen)->iws->pci_id) {
  61    case PCI_CHIP_I915_G:
  62       chipset = "915G";
  63       break;
  64    case PCI_CHIP_I915_GM:
  65       chipset = "915GM";
  66       break;
  67    case PCI_CHIP_I945_G:
  68       chipset = "945G";
  69       break;
  70    case PCI_CHIP_I945_GM:
  71       chipset = "945GM";
  72       break;
  73    case PCI_CHIP_I945_GME:
  74       chipset = "945GME";
  75       break;
  76    case PCI_CHIP_G33_G:
  77       chipset = "G33";
  78       break;
  79    case PCI_CHIP_Q35_G:
  80       chipset = "Q35";
  81       break;
  82    case PCI_CHIP_Q33_G:
  83       chipset = "Q33";
  84       break;
  85    case PCI_CHIP_PINEVIEW_G:
  86       chipset = "Pineview G";
  87       break;
  88    case PCI_CHIP_PINEVIEW_M:
  89       chipset = "Pineview M";
  90       break;
  91    default:
  92       chipset = "unknown";
  93       break;
  94    }
  95
  96    util_snprintf(buffer, sizeof(buffer), "i915 (chipset: %s)", chipset);
  97    return buffer;
  98 }
  99
 100 static int
 101 i915_get_param(struct pipe_screen *screen, enum pipe_cap cap)
 102 {
 103    struct i915_screen *is = i915_screen(screen);
 104
 105    switch (cap) {
 106    /* Supported features (boolean caps). */
 107    case PIPE_CAP_ANISOTROPIC_FILTER:
 108    case PIPE_CAP_DEPTHSTENCIL_CLEAR_SEPARATE:
 109    case PIPE_CAP_NPOT_TEXTURES:
 110    case PIPE_CAP_PRIMITIVE_RESTART: /* draw module */
 111    case PIPE_CAP_TEXTURE_MIRROR_REPEAT:
 112    case PIPE_CAP_TEXTURE_SHADOW_MAP:
 113    case PIPE_CAP_TWO_SIDED_STENCIL:
 114       return 1;
 115
 116    /* Features that should be supported (boolean caps). */
 117    /* XXX: Just test the code */
 118    case PIPE_CAP_BLEND_EQUATION_SEPARATE:
 119       return 0;
 120
 121    /* Unsupported features (boolean caps). */
 122    case PIPE_CAP_ARRAY_TEXTURES:
 123    case PIPE_CAP_DEPTH_CLAMP:
 124    case PIPE_CAP_GLSL:
 125    case PIPE_CAP_INDEP_BLEND_ENABLE:
 126    case PIPE_CAP_INDEP_BLEND_FUNC:
 127    case PIPE_CAP_TGSI_INSTANCEID:
 128    case PIPE_CAP_VERTEX_ELEMENT_INSTANCE_DIVISOR:
 129    case PIPE_CAP_POINT_SPRITE:
 130    case PIPE_CAP_SHADER_STENCIL_EXPORT:
 131    case PIPE_CAP_TEXTURE_MIRROR_CLAMP:
 132    case PIPE_CAP_TEXTURE_SWIZZLE:
 133    case PIPE_CAP_TIMER_QUERY:
 134       return 0;
 135
 136    /* Features we can lie about (boolean caps). */
 137    case PIPE_CAP_OCCLUSION_QUERY:
 138       return is->debug.lie ? 1 : 0;
 139
 140    /* Texturing. */
 141    case PIPE_CAP_MAX_TEXTURE_IMAGE_UNITS:
 142    case PIPE_CAP_MAX_COMBINED_SAMPLERS:
 143       return 8;
 144    case PIPE_CAP_MAX_VERTEX_TEXTURE_UNITS:
 145       return 0;
 146    case PIPE_CAP_MAX_TEXTURE_2D_LEVELS:
 147       return I915_MAX_TEXTURE_2D_LEVELS;
 148    case PIPE_CAP_MAX_TEXTURE_3D_LEVELS:
 149       return I915_MAX_TEXTURE_3D_LEVELS;
 150    case PIPE_CAP_MAX_TEXTURE_CUBE_LEVELS:
 151       return I915_MAX_TEXTURE_2D_LEVELS;
 152
 153    /* Render targets. */
 154    case PIPE_CAP_MAX_RENDER_TARGETS:
 155       return 1;
 156
 157    /* Fragment coordinate conventions. */
 158    case PIPE_CAP_TGSI_FS_COORD_ORIGIN_UPPER_LEFT:
 159    case PIPE_CAP_TGSI_FS_COORD_PIXEL_CENTER_HALF_INTEGER:
 160       return 1;
 161    case PIPE_CAP_TGSI_FS_COORD_ORIGIN_LOWER_LEFT:
 162    case PIPE_CAP_TGSI_FS_COORD_PIXEL_CENTER_INTEGER:
 163       return 0;
 164
 165    default:
 166       debug_printf("%s: Unkown cap %u.\n", __FUNCTION__, cap);
 167       return 0;
 168    }
 169 }
 170
 171 static int
 172 i915_get_shader_param(struct pipe_screen *screen, unsigned shader, enum pipe_shader_cap cap)
 173 {
 174    switch(shader) {
 175    case PIPE_SHADER_VERTEX:
 176       return draw_get_shader_param(shader, cap);
 177    case PIPE_SHADER_FRAGMENT:
 178       break;
 179    default:
 180       return 0;
 181    }
 182
 183    /* XXX: these are just shader model 2.0 values, fix this! */
 184    switch(cap) {
 185       case PIPE_SHADER_CAP_MAX_INSTRUCTIONS:
 186          return 96;
 187       case PIPE_SHADER_CAP_MAX_ALU_INSTRUCTIONS:
 188          return 64;
 189       case PIPE_SHADER_CAP_MAX_TEX_INSTRUCTIONS:
 190          return 32;
 191       case PIPE_SHADER_CAP_MAX_TEX_INDIRECTIONS:
 192          return 8;
 193       case PIPE_SHADER_CAP_MAX_CONTROL_FLOW_DEPTH:
 194          return 0;
 195       case PIPE_SHADER_CAP_MAX_INPUTS:
 196          return 10;
 197       case PIPE_SHADER_CAP_MAX_CONSTS:
 198          return 32;
 199       case PIPE_SHADER_CAP_MAX_CONST_BUFFERS:
 200          return 1;
 201       case PIPE_SHADER_CAP_MAX_TEMPS:
 202          return 12; /* XXX: 12 -> 32 ? */
 203       case PIPE_SHADER_CAP_MAX_ADDRS:
 204          return 0;
 205       case PIPE_SHADER_CAP_MAX_PREDS:
 206          return 0;
 207       case PIPE_SHADER_CAP_TGSI_CONT_SUPPORTED:
 208          return 0;
 209       case PIPE_SHADER_CAP_INDIRECT_INPUT_ADDR:
 210       case PIPE_SHADER_CAP_INDIRECT_OUTPUT_ADDR:
 211       case PIPE_SHADER_CAP_INDIRECT_TEMP_ADDR:
 212       case PIPE_SHADER_CAP_INDIRECT_CONST_ADDR:
 213          return 1;
 214       case PIPE_SHADER_CAP_SUBROUTINES:
 215          return 0;
 216       default:
 217          debug_printf("%s: Unkown cap %u.\n", __FUNCTION__, cap);
 218          return 0;
 219    }
 220 }
 221
 222 static float
 223 i915_get_paramf(struct pipe_screen *screen, enum pipe_cap cap)
 224 {
 225    switch(cap) {
 226    case PIPE_CAP_MAX_LINE_WIDTH:
 227       /* fall-through */
 228    case PIPE_CAP_MAX_LINE_WIDTH_AA:
 229       return 7.5;
 230
 231    case PIPE_CAP_MAX_POINT_WIDTH:
 232       /* fall-through */
 233    case PIPE_CAP_MAX_POINT_WIDTH_AA:
 234       return 255.0;
 235
 236    case PIPE_CAP_MAX_TEXTURE_ANISOTROPY:
 237       return 4.0;
 238
 239    case PIPE_CAP_MAX_TEXTURE_LOD_BIAS:
 240       return 16.0;
 241
 242    default:
 243       debug_printf("%s: Unkown cap %u.\n", __FUNCTION__, cap);
 244       return 0;
 245    }
 246 }
 247
 248 static boolean
 249 i915_is_format_supported(struct pipe_screen *screen,
 250                          enum pipe_format format,
 251                          enum pipe_texture_target target,
 252                          unsigned sample_count,
 253                          unsigned tex_usage)
 254 {
 255    static const enum pipe_format tex_supported[] = {
 256       PIPE_FORMAT_B8G8R8A8_UNORM,
 257       PIPE_FORMAT_B8G8R8X8_UNORM,
 258       PIPE_FORMAT_B5G6R5_UNORM,
 259       PIPE_FORMAT_L8_UNORM,
 260       PIPE_FORMAT_A8_UNORM,
 261       PIPE_FORMAT_I8_UNORM,
 262       PIPE_FORMAT_L8A8_UNORM,
 263       PIPE_FORMAT_UYVY,
 264       PIPE_FORMAT_YUYV,
 265       /* XXX why not?
 266       PIPE_FORMAT_Z16_UNORM, */
 267       PIPE_FORMAT_Z24X8_UNORM,
 268       PIPE_FORMAT_Z24_UNORM_S8_USCALED,
 269       PIPE_FORMAT_NONE  /* list terminator */
 270    };
 271    static const enum pipe_format render_supported[] = {
 272       PIPE_FORMAT_B8G8R8A8_UNORM,
 273       PIPE_FORMAT_B5G6R5_UNORM,
 274       PIPE_FORMAT_NONE  /* list terminator */
 275    };
 276    static const enum pipe_format depth_supported[] = {
 277       /* XXX why not?
 278       PIPE_FORMAT_Z16_UNORM, */
 279       PIPE_FORMAT_Z24X8_UNORM,
 280       PIPE_FORMAT_Z24_UNORM_S8_USCALED,
 281       PIPE_FORMAT_NONE  /* list terminator */
 282    };
 283    const enum pipe_format *list;
 284    uint i;
 285
 286    if (sample_count > 1)
 287       return FALSE;
 288
 289    if(tex_usage & PIPE_BIND_DEPTH_STENCIL)
 290       list = depth_supported;
 291    else if (tex_usage & PIPE_BIND_RENDER_TARGET)
 292       list = render_supported;
 293    else
 294       list = tex_supported;
 295
 296    for (i = 0; list[i] != PIPE_FORMAT_NONE; i++) {
 297       if (list[i] == format)
 298          return TRUE;
 299    }
 300
 301    return FALSE;
 302 }
 303
 304
 305 /*
 306  * Fence functions
 307  */
 308
 309
 310 static void
 311 i915_fence_reference(struct pipe_screen *screen,
 312                      struct pipe_fence_handle **ptr,
 313                      struct pipe_fence_handle *fence)
 314 {
 315    struct i915_screen *is = i915_screen(screen);
 316
 317    is->iws->fence_reference(is->iws, ptr, fence);
 318 }
 319
 320 static boolean
 321 i915_fence_signalled(struct pipe_screen *screen,
 322                      struct pipe_fence_handle *fence)
 323 {
 324    struct i915_screen *is = i915_screen(screen);
 325
 326    return is->iws->fence_signalled(is->iws, fence) == 0;
 327 }
 328
 329 static boolean
 330 i915_fence_finish(struct pipe_screen *screen,
 331                   struct pipe_fence_handle *fence,
 332                   uint64_t timeout)
 333 {
 334    struct i915_screen *is = i915_screen(screen);
 335
 336    return is->iws->fence_finish(is->iws, fence) == 0;
 337 }
 338
 339
 340 /*
 341  * Generic functions
 342  */
 343
 344
 345 static void
 346 i915_flush_frontbuffer(struct pipe_screen *screen,
 347                        struct pipe_resource *resource,
 348                        unsigned level, unsigned layer,
 349                        void *winsys_drawable_handle)
 350 {
 351    /* XXX: Dummy right now. */
 352    (void)screen;
 353    (void)resource;
 354    (void)level;
 355    (void)layer;
 356    (void)winsys_drawable_handle;
 357 }
 358
 359 static void
 360 i915_destroy_screen(struct pipe_screen *screen)
 361 {
 362    struct i915_screen *is = i915_screen(screen);
 363
 364    if (is->iws)
 365       is->iws->destroy(is->iws);
 366
 367    FREE(is);
 368 }
 369
 370 /**
 371  * Create a new i915_screen object
 372  */
 373 struct pipe_screen *
 374 i915_screen_create(struct i915_winsys *iws)
 375 {
 376    struct i915_screen *is = CALLOC_STRUCT(i915_screen);
 377
 378    if (!is)
 379       return NULL;
 380
 381    switch (iws->pci_id) {
 382    case PCI_CHIP_I915_G:
 383    case PCI_CHIP_I915_GM:
 384       is->is_i945 = FALSE;
 385       break;
 386
 387    case PCI_CHIP_I945_G:
 388    case PCI_CHIP_I945_GM:
 389    case PCI_CHIP_I945_GME:
 390    case PCI_CHIP_G33_G:
 391    case PCI_CHIP_Q33_G:
 392    case PCI_CHIP_Q35_G:
 393    case PCI_CHIP_PINEVIEW_G:
 394    case PCI_CHIP_PINEVIEW_M:
 395       is->is_i945 = TRUE;
 396       break;
 397
 398    default:
 399       debug_printf("%s: unknown pci id 0x%x, cannot create screen\n",
 400                    __FUNCTION__, iws->pci_id);
 401       FREE(is);
 402       return NULL;
 403    }
 404
 405    is->iws = iws;
 406
 407    is->base.winsys = NULL;
 408
 409    is->base.destroy = i915_destroy_screen;
 410    is->base.flush_frontbuffer = i915_flush_frontbuffer;
 411
 412    is->base.get_name = i915_get_name;
 413    is->base.get_vendor = i915_get_vendor;
 414    is->base.get_param = i915_get_param;
 415    is->base.get_shader_param = i915_get_shader_param;
 416    is->base.get_paramf = i915_get_paramf;
 417    is->base.is_format_supported = i915_is_format_supported;
 418
 419    is->base.context_create = i915_create_context;
 420
 421    is->base.fence_reference = i915_fence_reference;
 422    is->base.fence_signalled = i915_fence_signalled;
 423    is->base.fence_finish = i915_fence_finish;
 424
 425    i915_init_screen_resource_functions(is);
 426
 427    i915_debug_init(is);
 428
 429    return &is->base;
 430 }