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