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 "util/u_inlines.h"
  30 #include "util/u_memory.h"
  31 #include "util/u_string.h"
  32
  33 #include "i915_reg.h"
  34 #include "i915_debug.h"
  35 #include "i915_context.h"
  36 #include "i915_screen.h"
  37 #include "i915_surface.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    default:
  86       chipset = "unknown";
  87       break;
  88    }
  89
  90    util_snprintf(buffer, sizeof(buffer), "i915 (chipset: %s)", chipset);
  91    return buffer;
  92 }
  93
  94 static int
  95 i915_get_param(struct pipe_screen *screen, enum pipe_cap param)
  96 {
  97    switch (param) {
  98    case PIPE_CAP_MAX_TEXTURE_IMAGE_UNITS:
  99       return 8;
 100    case PIPE_CAP_MAX_VERTEX_TEXTURE_UNITS:
 101       return 0;
 102    case PIPE_CAP_MAX_COMBINED_SAMPLERS:
 103       return 8;
 104    case PIPE_CAP_NPOT_TEXTURES:
 105       return 1;
 106    case PIPE_CAP_TWO_SIDED_STENCIL:
 107       return 1;
 108    case PIPE_CAP_GLSL:
 109       return 0;
 110    case PIPE_CAP_ANISOTROPIC_FILTER:
 111       return 0;
 112    case PIPE_CAP_POINT_SPRITE:
 113       return 0;
 114    case PIPE_CAP_MAX_RENDER_TARGETS:
 115       return 1;
 116    case PIPE_CAP_OCCLUSION_QUERY:
 117       return 0;
 118    case PIPE_CAP_TIMER_QUERY:
 119       return 0;
 120    case PIPE_CAP_TEXTURE_SHADOW_MAP:
 121       return 1;
 122    case PIPE_CAP_MAX_TEXTURE_2D_LEVELS:
 123       return I915_MAX_TEXTURE_2D_LEVELS;
 124    case PIPE_CAP_MAX_TEXTURE_3D_LEVELS:
 125       return I915_MAX_TEXTURE_3D_LEVELS;
 126    case PIPE_CAP_MAX_TEXTURE_CUBE_LEVELS:
 127       return I915_MAX_TEXTURE_2D_LEVELS;
 128    case PIPE_CAP_TGSI_FS_COORD_ORIGIN_UPPER_LEFT:
 129    case PIPE_CAP_TGSI_FS_COORD_PIXEL_CENTER_HALF_INTEGER:
 130       return 1;
 131    case PIPE_CAP_TGSI_FS_COORD_ORIGIN_LOWER_LEFT:
 132    case PIPE_CAP_TGSI_FS_COORD_PIXEL_CENTER_INTEGER:
 133       return 0;
 134    case PIPE_CAP_DEPTHSTENCIL_CLEAR_SEPARATE:
 135       /* disable for now */
 136       return 0;
 137    default:
 138       return 0;
 139    }
 140 }
 141
 142 static float
 143 i915_get_paramf(struct pipe_screen *screen, enum pipe_cap param)
 144 {
 145    switch (param) {
 146    case PIPE_CAP_MAX_LINE_WIDTH:
 147       /* fall-through */
 148    case PIPE_CAP_MAX_LINE_WIDTH_AA:
 149       return 7.5;
 150
 151    case PIPE_CAP_MAX_POINT_WIDTH:
 152       /* fall-through */
 153    case PIPE_CAP_MAX_POINT_WIDTH_AA:
 154       return 255.0;
 155
 156    case PIPE_CAP_MAX_TEXTURE_ANISOTROPY:
 157       return 4.0;
 158
 159    case PIPE_CAP_MAX_TEXTURE_LOD_BIAS:
 160       return 16.0;
 161
 162    default:
 163       return 0;
 164    }
 165 }
 166
 167 static boolean
 168 i915_is_format_supported(struct pipe_screen *screen,
 169                          enum pipe_format format,
 170                          enum pipe_texture_target target,
 171                          unsigned sample_count,
 172                          unsigned tex_usage,
 173                          unsigned geom_flags)
 174 {
 175    static const enum pipe_format tex_supported[] = {
 176       PIPE_FORMAT_B8G8R8A8_UNORM,
 177       PIPE_FORMAT_B8G8R8X8_UNORM,
 178       PIPE_FORMAT_R8G8B8A8_UNORM,
 179 #if 0
 180       PIPE_FORMAT_R8G8B8X8_UNORM,
 181 #endif
 182       PIPE_FORMAT_B5G6R5_UNORM,
 183       PIPE_FORMAT_L8_UNORM,
 184       PIPE_FORMAT_A8_UNORM,
 185       PIPE_FORMAT_I8_UNORM,
 186       PIPE_FORMAT_L8A8_UNORM,
 187       PIPE_FORMAT_UYVY,
 188       PIPE_FORMAT_YUYV,
 189       /* XXX why not?
 190       PIPE_FORMAT_Z16_UNORM, */
 191       PIPE_FORMAT_Z24X8_UNORM,
 192       PIPE_FORMAT_Z24_UNORM_S8_USCALED,
 193       PIPE_FORMAT_NONE  /* list terminator */
 194    };
 195    static const enum pipe_format render_supported[] = {
 196       PIPE_FORMAT_B8G8R8A8_UNORM,
 197       PIPE_FORMAT_B5G6R5_UNORM,
 198       PIPE_FORMAT_NONE  /* list terminator */
 199    };
 200    static const enum pipe_format depth_supported[] = {
 201       /* XXX why not?
 202       PIPE_FORMAT_Z16_UNORM, */
 203       PIPE_FORMAT_Z24X8_UNORM,
 204       PIPE_FORMAT_Z24_UNORM_S8_USCALED,
 205       PIPE_FORMAT_NONE  /* list terminator */
 206    };
 207    const enum pipe_format *list;
 208    uint i;
 209
 210    if (sample_count > 1)
 211       return FALSE;
 212
 213    if(tex_usage & PIPE_BIND_DEPTH_STENCIL)
 214       list = depth_supported;
 215    else if (tex_usage & PIPE_BIND_RENDER_TARGET)
 216       list = render_supported;
 217    else
 218       list = tex_supported;
 219
 220    for (i = 0; list[i] != PIPE_FORMAT_NONE; i++) {
 221       if (list[i] == format)
 222          return TRUE;
 223    }
 224
 225    return FALSE;
 226 }
 227
 228
 229 /*
 230  * Fence functions
 231  */
 232
 233
 234 static void
 235 i915_fence_reference(struct pipe_screen *screen,
 236                      struct pipe_fence_handle **ptr,
 237                      struct pipe_fence_handle *fence)
 238 {
 239    struct i915_screen *is = i915_screen(screen);
 240
 241    is->iws->fence_reference(is->iws, ptr, fence);
 242 }
 243
 244 static int
 245 i915_fence_signalled(struct pipe_screen *screen,
 246                      struct pipe_fence_handle *fence,
 247                      unsigned flags)
 248 {
 249    struct i915_screen *is = i915_screen(screen);
 250
 251    return is->iws->fence_signalled(is->iws, fence);
 252 }
 253
 254 static int
 255 i915_fence_finish(struct pipe_screen *screen,
 256                   struct pipe_fence_handle *fence,
 257                   unsigned flags)
 258 {
 259    struct i915_screen *is = i915_screen(screen);
 260
 261    return is->iws->fence_finish(is->iws, fence);
 262 }
 263
 264
 265 /*
 266  * Generic functions
 267  */
 268
 269
 270 static void
 271 i915_destroy_screen(struct pipe_screen *screen)
 272 {
 273    struct i915_screen *is = i915_screen(screen);
 274
 275    if (is->iws)
 276       is->iws->destroy(is->iws);
 277
 278    FREE(is);
 279 }
 280
 281 /**
 282  * Create a new i915_screen object
 283  */
 284 struct pipe_screen *
 285 i915_screen_create(struct i915_winsys *iws)
 286 {
 287    struct i915_screen *is = CALLOC_STRUCT(i915_screen);
 288
 289    if (!is)
 290       return NULL;
 291
 292    switch (iws->pci_id) {
 293    case PCI_CHIP_I915_G:
 294    case PCI_CHIP_I915_GM:
 295       is->is_i945 = FALSE;
 296       break;
 297
 298    case PCI_CHIP_I945_G:
 299    case PCI_CHIP_I945_GM:
 300    case PCI_CHIP_I945_GME:
 301    case PCI_CHIP_G33_G:
 302    case PCI_CHIP_Q33_G:
 303    case PCI_CHIP_Q35_G:
 304       is->is_i945 = TRUE;
 305       break;
 306
 307    default:
 308       debug_printf("%s: unknown pci id 0x%x, cannot create screen\n",
 309                    __FUNCTION__, iws->pci_id);
 310       FREE(is);
 311       return NULL;
 312    }
 313
 314    is->iws = iws;
 315
 316    is->base.winsys = NULL;
 317
 318    is->base.destroy = i915_destroy_screen;
 319
 320    is->base.get_name = i915_get_name;
 321    is->base.get_vendor = i915_get_vendor;
 322    is->base.get_param = i915_get_param;
 323    is->base.get_paramf = i915_get_paramf;
 324    is->base.is_format_supported = i915_is_format_supported;
 325
 326    is->base.context_create = i915_create_context;
 327
 328    is->base.fence_reference = i915_fence_reference;
 329    is->base.fence_signalled = i915_fence_signalled;
 330    is->base.fence_finish = i915_fence_finish;
 331
 332    i915_init_screen_resource_functions(is);
 333    i915_init_screen_surface_functions(is);
 334
 335    i915_debug_init(is);
 336
 337    return &is->base;
 338 }