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_NPOT_TEXTURES:
 109    case PIPE_CAP_PRIMITIVE_RESTART: /* draw module */
 110    case PIPE_CAP_TEXTURE_SHADOW_MAP:
 111    case PIPE_CAP_TWO_SIDED_STENCIL:
 112       return 1;
 113
 114    /* Features that should be supported (boolean caps). */
 115    /* XXX: Just test the code */
 116    case PIPE_CAP_BLEND_EQUATION_SEPARATE:
 117    case PIPE_CAP_TEXTURE_MIRROR_REPEAT:
 118       return 0;
 119
 120    /* Unsupported features (boolean caps). */
 121    case PIPE_CAP_ARRAY_TEXTURES:
 122    case PIPE_CAP_DEPTH_CLAMP:
 123    case PIPE_CAP_DEPTHSTENCIL_CLEAR_SEPARATE: /* disable for now */
 124    case PIPE_CAP_GLSL:
 125    case PIPE_CAP_INDEP_BLEND_ENABLE:
 126    case PIPE_CAP_INDEP_BLEND_FUNC:
 127    case PIPE_CAP_INSTANCED_DRAWING: /* draw module? */
 128    case PIPE_CAP_POINT_SPRITE:
 129    case PIPE_CAP_SHADER_STENCIL_EXPORT:
 130    case PIPE_CAP_TEXTURE_MIRROR_CLAMP:
 131    case PIPE_CAP_TEXTURE_SWIZZLE:
 132    case PIPE_CAP_TIMER_QUERY:
 133       return 0;
 134
 135    /* Features we can lie about (boolean caps). */
 136    case PIPE_CAP_OCCLUSION_QUERY:
 137       return is->debug.lie ? 1 : 0;
 138
 139    /* Texturing. */
 140    case PIPE_CAP_MAX_TEXTURE_IMAGE_UNITS:
 141    case PIPE_CAP_MAX_COMBINED_SAMPLERS:
 142       return 8;
 143    case PIPE_CAP_MAX_VERTEX_TEXTURE_UNITS:
 144       return 0;
 145    case PIPE_CAP_MAX_TEXTURE_2D_LEVELS:
 146       return I915_MAX_TEXTURE_2D_LEVELS;
 147    case PIPE_CAP_MAX_TEXTURE_3D_LEVELS:
 148       return I915_MAX_TEXTURE_3D_LEVELS;
 149    case PIPE_CAP_MAX_TEXTURE_CUBE_LEVELS:
 150       return I915_MAX_TEXTURE_2D_LEVELS;
 151
 152    /* Render targets. */
 153    case PIPE_CAP_MAX_RENDER_TARGETS:
 154       return 1;
 155
 156    /* Fragment coordinate conventions. */
 157    case PIPE_CAP_TGSI_FS_COORD_ORIGIN_UPPER_LEFT:
 158    case PIPE_CAP_TGSI_FS_COORD_PIXEL_CENTER_HALF_INTEGER:
 159       return 1;
 160    case PIPE_CAP_TGSI_FS_COORD_ORIGIN_LOWER_LEFT:
 161    case PIPE_CAP_TGSI_FS_COORD_PIXEL_CENTER_INTEGER:
 162       return 0;
 163
 164    default:
 165       debug_printf("%s: Unkown cap %u.\n", __FUNCTION__, cap);
 166       return 0;
 167    }
 168 }
 169
 170 static int
 171 i915_get_shader_param(struct pipe_screen *screen, unsigned shader, enum pipe_shader_cap cap)
 172 {
 173    switch(shader) {
 174    case PIPE_SHADER_VERTEX:
 175       return draw_get_shader_param(shader, cap);
 176    case PIPE_SHADER_FRAGMENT:
 177       break;
 178    default:
 179       return 0;
 180    }
 181
 182    /* XXX: these are just shader model 2.0 values, fix this! */
 183    switch(cap) {
 184       case PIPE_SHADER_CAP_MAX_INSTRUCTIONS:
 185          return 96;
 186       case PIPE_SHADER_CAP_MAX_ALU_INSTRUCTIONS:
 187          return 64;
 188       case PIPE_SHADER_CAP_MAX_TEX_INSTRUCTIONS:
 189          return 32;
 190       case PIPE_SHADER_CAP_MAX_TEX_INDIRECTIONS:
 191          return 8;
 192       case PIPE_SHADER_CAP_MAX_CONTROL_FLOW_DEPTH:
 193          return 0;
 194       case PIPE_SHADER_CAP_MAX_INPUTS:
 195          return 10;
 196       case PIPE_SHADER_CAP_MAX_CONSTS:
 197          return 32;
 198       case PIPE_SHADER_CAP_MAX_CONST_BUFFERS:
 199          return 1;
 200       case PIPE_SHADER_CAP_MAX_TEMPS:
 201          return 12; /* XXX: 12 -> 32 ? */
 202       case PIPE_SHADER_CAP_MAX_ADDRS:
 203          return 0;
 204       case PIPE_SHADER_CAP_MAX_PREDS:
 205          return 0;
 206       case PIPE_SHADER_CAP_TGSI_CONT_SUPPORTED:
 207          return 0;
 208       case PIPE_SHADER_CAP_INDIRECT_INPUT_ADDR:
 209       case PIPE_SHADER_CAP_INDIRECT_OUTPUT_ADDR:
 210       case PIPE_SHADER_CAP_INDIRECT_TEMP_ADDR:
 211       case PIPE_SHADER_CAP_INDIRECT_CONST_ADDR:
 212          return 1;
 213       case PIPE_SHADER_CAP_SUBROUTINES:
 214          return 0;
 215       default:
 216          debug_printf("%s: Unkown cap %u.\n", __FUNCTION__, cap);
 217          return 0;
 218    }
 219 }
 220
 221 static float
 222 i915_get_paramf(struct pipe_screen *screen, enum pipe_cap cap)
 223 {
 224    switch(cap) {
 225    case PIPE_CAP_MAX_LINE_WIDTH:
 226       /* fall-through */
 227    case PIPE_CAP_MAX_LINE_WIDTH_AA:
 228       return 7.5;
 229
 230    case PIPE_CAP_MAX_POINT_WIDTH:
 231       /* fall-through */
 232    case PIPE_CAP_MAX_POINT_WIDTH_AA:
 233       return 255.0;
 234
 235    case PIPE_CAP_MAX_TEXTURE_ANISOTROPY:
 236       return 4.0;
 237
 238    case PIPE_CAP_MAX_TEXTURE_LOD_BIAS:
 239       return 16.0;
 240
 241    default:
 242       debug_printf("%s: Unkown cap %u.\n", __FUNCTION__, cap);
 243       return 0;
 244    }
 245 }
 246
 247 static boolean
 248 i915_is_format_supported(struct pipe_screen *screen,
 249                          enum pipe_format format,
 250                          enum pipe_texture_target target,
 251                          unsigned sample_count,
 252                          unsigned tex_usage,
 253                          unsigned geom_flags)
 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 int
 321 i915_fence_signalled(struct pipe_screen *screen,
 322                      struct pipe_fence_handle *fence,
 323                      unsigned flags)
 324 {
 325    struct i915_screen *is = i915_screen(screen);
 326
 327    return is->iws->fence_signalled(is->iws, fence);
 328 }
 329
 330 static int
 331 i915_fence_finish(struct pipe_screen *screen,
 332                   struct pipe_fence_handle *fence,
 333                   unsigned flags)
 334 {
 335    struct i915_screen *is = i915_screen(screen);
 336
 337    return is->iws->fence_finish(is->iws, fence);
 338 }
 339
 340
 341 /*
 342  * Generic functions
 343  */
 344
 345
 346 static void
 347 i915_flush_frontbuffer(struct pipe_screen *screen,
 348                        struct pipe_resource *resource,
 349                        unsigned level, unsigned layer,
 350                        void *winsys_drawable_handle)
 351 {
 352    /* XXX: Dummy right now. */
 353    (void)screen;
 354    (void)resource;
 355    (void)level;
 356    (void)layer;
 357    (void)winsys_drawable_handle;
 358 }
 359
 360 static void
 361 i915_destroy_screen(struct pipe_screen *screen)
 362 {
 363    struct i915_screen *is = i915_screen(screen);
 364
 365    if (is->iws)
 366       is->iws->destroy(is->iws);
 367
 368    FREE(is);
 369 }
 370
 371 /**
 372  * Create a new i915_screen object
 373  */
 374 struct pipe_screen *
 375 i915_screen_create(struct i915_winsys *iws)
 376 {
 377    struct i915_screen *is = CALLOC_STRUCT(i915_screen);
 378
 379    if (!is)
 380       return NULL;
 381
 382    switch (iws->pci_id) {
 383    case PCI_CHIP_I915_G:
 384    case PCI_CHIP_I915_GM:
 385       is->is_i945 = FALSE;
 386       break;
 387
 388    case PCI_CHIP_I945_G:
 389    case PCI_CHIP_I945_GM:
 390    case PCI_CHIP_I945_GME:
 391    case PCI_CHIP_G33_G:
 392    case PCI_CHIP_Q33_G:
 393    case PCI_CHIP_Q35_G:
 394    case PCI_CHIP_PINEVIEW_G:
 395    case PCI_CHIP_PINEVIEW_M:
 396       is->is_i945 = TRUE;
 397       break;
 398
 399    default:
 400       debug_printf("%s: unknown pci id 0x%x, cannot create screen\n",
 401                    __FUNCTION__, iws->pci_id);
 402       FREE(is);
 403       return NULL;
 404    }
 405
 406    is->iws = iws;
 407
 408    is->base.winsys = NULL;
 409
 410    is->base.destroy = i915_destroy_screen;
 411    is->base.flush_frontbuffer = i915_flush_frontbuffer;
 412
 413    is->base.get_name = i915_get_name;
 414    is->base.get_vendor = i915_get_vendor;
 415    is->base.get_param = i915_get_param;
 416    is->base.get_shader_param = i915_get_shader_param;
 417    is->base.get_paramf = i915_get_paramf;
 418    is->base.is_format_supported = i915_is_format_supported;
 419
 420    is->base.context_create = i915_create_context;
 421
 422    is->base.fence_reference = i915_fence_reference;
 423    is->base.fence_signalled = i915_fence_signalled;
 424    is->base.fence_finish = i915_fence_finish;
 425
 426    i915_init_screen_resource_functions(is);
 427
 428    i915_debug_init(is);
 429
 430    return &is->base;
 431 }