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_context.h"
  35 #include "i915_screen.h"
  36 #include "i915_surface.h"
  37 #include "i915_resource.h"
  38 #include "i915_winsys.h"
  39
  40
  41 /*
  42  * Probe functions
  43  */
  44
  45
  46 static const char *
  47 i915_get_vendor(struct pipe_screen *screen)
  48 {
  49    return "VMware, Inc.";
  50 }
  51
  52 static const char *
  53 i915_get_name(struct pipe_screen *screen)
  54 {
  55    static char buffer[128];
  56    const char *chipset;
  57
  58    switch (i915_screen(screen)->iws->pci_id) {
  59    case PCI_CHIP_I915_G:
  60       chipset = "915G";
  61       break;
  62    case PCI_CHIP_I915_GM:
  63       chipset = "915GM";
  64       break;
  65    case PCI_CHIP_I945_G:
  66       chipset = "945G";
  67       break;
  68    case PCI_CHIP_I945_GM:
  69       chipset = "945GM";
  70       break;
  71    case PCI_CHIP_I945_GME:
  72       chipset = "945GME";
  73       break;
  74    case PCI_CHIP_G33_G:
  75       chipset = "G33";
  76       break;
  77    case PCI_CHIP_Q35_G:
  78       chipset = "Q35";
  79       break;
  80    case PCI_CHIP_Q33_G:
  81       chipset = "Q33";
  82       break;
  83    default:
  84       chipset = "unknown";
  85       break;
  86    }
  87
  88    util_snprintf(buffer, sizeof(buffer), "i915 (chipset: %s)", chipset);
  89    return buffer;
  90 }
  91
  92 static int
  93 i915_get_param(struct pipe_screen *screen, enum pipe_cap param)
  94 {
  95    switch (param) {
  96    case PIPE_CAP_MAX_TEXTURE_IMAGE_UNITS:
  97       return 8;
  98    case PIPE_CAP_MAX_VERTEX_TEXTURE_UNITS:
  99       return 0;
 100    case PIPE_CAP_MAX_COMBINED_SAMPLERS:
 101       return 8;
 102    case PIPE_CAP_NPOT_TEXTURES:
 103       return 1;
 104    case PIPE_CAP_TWO_SIDED_STENCIL:
 105       return 1;
 106    case PIPE_CAP_GLSL:
 107       return 0;
 108    case PIPE_CAP_ANISOTROPIC_FILTER:
 109       return 0;
 110    case PIPE_CAP_POINT_SPRITE:
 111       return 0;
 112    case PIPE_CAP_MAX_RENDER_TARGETS:
 113       return 1;
 114    case PIPE_CAP_OCCLUSION_QUERY:
 115       return 0;
 116    case PIPE_CAP_TIMER_QUERY:
 117       return 0;
 118    case PIPE_CAP_TEXTURE_SHADOW_MAP:
 119       return 1;
 120    case PIPE_CAP_MAX_TEXTURE_2D_LEVELS:
 121       return I915_MAX_TEXTURE_2D_LEVELS;
 122    case PIPE_CAP_MAX_TEXTURE_3D_LEVELS:
 123       return I915_MAX_TEXTURE_3D_LEVELS;
 124    case PIPE_CAP_MAX_TEXTURE_CUBE_LEVELS:
 125       return I915_MAX_TEXTURE_2D_LEVELS;
 126    case PIPE_CAP_TGSI_FS_COORD_ORIGIN_UPPER_LEFT:
 127    case PIPE_CAP_TGSI_FS_COORD_PIXEL_CENTER_HALF_INTEGER:
 128       return 1;
 129    case PIPE_CAP_TGSI_FS_COORD_ORIGIN_LOWER_LEFT:
 130    case PIPE_CAP_TGSI_FS_COORD_PIXEL_CENTER_INTEGER:
 131       return 0;
 132    case PIPE_CAP_DEPTHSTENCIL_CLEAR_SEPARATE:
 133       /* disable for now */
 134       return 0;
 135    default:
 136       return 0;
 137    }
 138 }
 139
 140 static float
 141 i915_get_paramf(struct pipe_screen *screen, enum pipe_cap param)
 142 {
 143    switch (param) {
 144    case PIPE_CAP_MAX_LINE_WIDTH:
 145       /* fall-through */
 146    case PIPE_CAP_MAX_LINE_WIDTH_AA:
 147       return 7.5;
 148
 149    case PIPE_CAP_MAX_POINT_WIDTH:
 150       /* fall-through */
 151    case PIPE_CAP_MAX_POINT_WIDTH_AA:
 152       return 255.0;
 153
 154    case PIPE_CAP_MAX_TEXTURE_ANISOTROPY:
 155       return 4.0;
 156
 157    case PIPE_CAP_MAX_TEXTURE_LOD_BIAS:
 158       return 16.0;
 159
 160    default:
 161       return 0;
 162    }
 163 }
 164
 165 static boolean
 166 i915_is_format_supported(struct pipe_screen *screen,
 167                          enum pipe_format format,
 168                          enum pipe_texture_target target,
 169                          unsigned sample_count,
 170                          unsigned tex_usage,
 171                          unsigned geom_flags)
 172 {
 173    static const enum pipe_format tex_supported[] = {
 174       PIPE_FORMAT_B8G8R8A8_UNORM,
 175       PIPE_FORMAT_B8G8R8X8_UNORM,
 176       PIPE_FORMAT_R8G8B8A8_UNORM,
 177 #if 0
 178       PIPE_FORMAT_R8G8B8X8_UNORM,
 179 #endif
 180       PIPE_FORMAT_B5G6R5_UNORM,
 181       PIPE_FORMAT_L8_UNORM,
 182       PIPE_FORMAT_A8_UNORM,
 183       PIPE_FORMAT_I8_UNORM,
 184       PIPE_FORMAT_L8A8_UNORM,
 185       PIPE_FORMAT_UYVY,
 186       PIPE_FORMAT_YUYV,
 187       /* XXX why not?
 188       PIPE_FORMAT_Z16_UNORM, */
 189       PIPE_FORMAT_Z24X8_UNORM,
 190       PIPE_FORMAT_Z24_UNORM_S8_USCALED,
 191       PIPE_FORMAT_NONE  /* list terminator */
 192    };
 193    static const enum pipe_format render_supported[] = {
 194       PIPE_FORMAT_B8G8R8A8_UNORM,
 195       PIPE_FORMAT_B5G6R5_UNORM,
 196       PIPE_FORMAT_NONE  /* list terminator */
 197    };
 198    static const enum pipe_format depth_supported[] = {
 199       /* XXX why not?
 200       PIPE_FORMAT_Z16_UNORM, */
 201       PIPE_FORMAT_Z24X8_UNORM,
 202       PIPE_FORMAT_Z24_UNORM_S8_USCALED,
 203       PIPE_FORMAT_NONE  /* list terminator */
 204    };
 205    const enum pipe_format *list;
 206    uint i;
 207
 208    if (sample_count > 1)
 209       return FALSE;
 210
 211    if(tex_usage & PIPE_BIND_DEPTH_STENCIL)
 212       list = depth_supported;
 213    else if (tex_usage & PIPE_BIND_RENDER_TARGET)
 214       list = render_supported;
 215    else
 216       list = tex_supported;
 217
 218    for (i = 0; list[i] != PIPE_FORMAT_NONE; i++) {
 219       if (list[i] == format)
 220          return TRUE;
 221    }
 222
 223    return FALSE;
 224 }
 225
 226
 227 /*
 228  * Fence functions
 229  */
 230
 231
 232 static void
 233 i915_fence_reference(struct pipe_screen *screen,
 234                      struct pipe_fence_handle **ptr,
 235                      struct pipe_fence_handle *fence)
 236 {
 237    struct i915_screen *is = i915_screen(screen);
 238
 239    is->iws->fence_reference(is->iws, ptr, fence);
 240 }
 241
 242 static int
 243 i915_fence_signalled(struct pipe_screen *screen,
 244                      struct pipe_fence_handle *fence,
 245                      unsigned flags)
 246 {
 247    struct i915_screen *is = i915_screen(screen);
 248
 249    return is->iws->fence_signalled(is->iws, fence);
 250 }
 251
 252 static int
 253 i915_fence_finish(struct pipe_screen *screen,
 254                   struct pipe_fence_handle *fence,
 255                   unsigned flags)
 256 {
 257    struct i915_screen *is = i915_screen(screen);
 258
 259    return is->iws->fence_finish(is->iws, fence);
 260 }
 261
 262
 263 /*
 264  * Generic functions
 265  */
 266
 267
 268 static void
 269 i915_destroy_screen(struct pipe_screen *screen)
 270 {
 271    struct i915_screen *is = i915_screen(screen);
 272
 273    if (is->iws)
 274       is->iws->destroy(is->iws);
 275
 276    FREE(is);
 277 }
 278
 279 /**
 280  * Create a new i915_screen object
 281  */
 282 struct pipe_screen *
 283 i915_screen_create(struct i915_winsys *iws)
 284 {
 285    struct i915_screen *is = CALLOC_STRUCT(i915_screen);
 286
 287    if (!is)
 288       return NULL;
 289
 290    switch (iws->pci_id) {
 291    case PCI_CHIP_I915_G:
 292    case PCI_CHIP_I915_GM:
 293       is->is_i945 = FALSE;
 294       break;
 295
 296    case PCI_CHIP_I945_G:
 297    case PCI_CHIP_I945_GM:
 298    case PCI_CHIP_I945_GME:
 299    case PCI_CHIP_G33_G:
 300    case PCI_CHIP_Q33_G:
 301    case PCI_CHIP_Q35_G:
 302       is->is_i945 = TRUE;
 303       break;
 304
 305    default:
 306       debug_printf("%s: unknown pci id 0x%x, cannot create screen\n",
 307                    __FUNCTION__, iws->pci_id);
 308       FREE(is);
 309       return NULL;
 310    }
 311
 312    is->iws = iws;
 313
 314    is->base.winsys = NULL;
 315
 316    is->base.destroy = i915_destroy_screen;
 317
 318    is->base.get_name = i915_get_name;
 319    is->base.get_vendor = i915_get_vendor;
 320    is->base.get_param = i915_get_param;
 321    is->base.get_paramf = i915_get_paramf;
 322    is->base.is_format_supported = i915_is_format_supported;
 323
 324    is->base.context_create = i915_create_context;
 325
 326    is->base.fence_reference = i915_fence_reference;
 327    is->base.fence_signalled = i915_fence_signalled;
 328    is->base.fence_finish = i915_fence_finish;
 329
 330    i915_init_screen_resource_functions(is);
 331    i915_init_screen_surface_functions(is);
 332
 333    return &is->base;
 334 }