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)->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    default:
 133       return 0;
 134    }
 135 }
 136
 137 static float
 138 i915_get_paramf(struct pipe_screen *screen, enum pipe_cap param)
 139 {
 140    switch (param) {
 141    case PIPE_CAP_MAX_LINE_WIDTH:
 142       /* fall-through */
 143    case PIPE_CAP_MAX_LINE_WIDTH_AA:
 144       return 7.5;
 145
 146    case PIPE_CAP_MAX_POINT_WIDTH:
 147       /* fall-through */
 148    case PIPE_CAP_MAX_POINT_WIDTH_AA:
 149       return 255.0;
 150
 151    case PIPE_CAP_MAX_TEXTURE_ANISOTROPY:
 152       return 4.0;
 153
 154    case PIPE_CAP_MAX_TEXTURE_LOD_BIAS:
 155       return 16.0;
 156
 157    default:
 158       return 0;
 159    }
 160 }
 161
 162 static boolean
 163 i915_is_format_supported(struct pipe_screen *screen,
 164                          enum pipe_format format,
 165                          enum pipe_texture_target target,
 166                          unsigned sample_count,
 167                          unsigned tex_usage,
 168                          unsigned geom_flags)
 169 {
 170    static const enum pipe_format tex_supported[] = {
 171       PIPE_FORMAT_B8G8R8A8_UNORM,
 172       PIPE_FORMAT_B8G8R8X8_UNORM,
 173       PIPE_FORMAT_R8G8B8A8_UNORM,
 174 #if 0
 175       PIPE_FORMAT_R8G8B8X8_UNORM,
 176 #endif
 177       PIPE_FORMAT_B5G6R5_UNORM,
 178       PIPE_FORMAT_L8_UNORM,
 179       PIPE_FORMAT_A8_UNORM,
 180       PIPE_FORMAT_I8_UNORM,
 181       PIPE_FORMAT_L8A8_UNORM,
 182       PIPE_FORMAT_UYVY,
 183       PIPE_FORMAT_YUYV,
 184       PIPE_FORMAT_Z24_UNORM_S8_USCALED,
 185       PIPE_FORMAT_NONE  /* list terminator */
 186    };
 187    static const enum pipe_format render_supported[] = {
 188       PIPE_FORMAT_B8G8R8A8_UNORM,
 189       PIPE_FORMAT_B5G6R5_UNORM,
 190       PIPE_FORMAT_NONE  /* list terminator */
 191    };
 192    static const enum pipe_format depth_supported[] = {
 193       PIPE_FORMAT_Z24_UNORM_S8_USCALED,
 194       PIPE_FORMAT_NONE  /* list terminator */
 195    };
 196    const enum pipe_format *list;
 197    uint i;
 198
 199    if (sample_count > 1)
 200       return FALSE;
 201
 202    if(tex_usage & PIPE_BIND_DEPTH_STENCIL)
 203       list = depth_supported;
 204    else if (tex_usage & PIPE_BIND_RENDER_TARGET)
 205       list = render_supported;
 206    else
 207       list = tex_supported;
 208
 209    for (i = 0; list[i] != PIPE_FORMAT_NONE; i++) {
 210       if (list[i] == format)
 211          return TRUE;
 212    }
 213
 214    return FALSE;
 215 }
 216
 217
 218 /*
 219  * Fence functions
 220  */
 221
 222
 223 static void
 224 i915_fence_reference(struct pipe_screen *screen,
 225                      struct pipe_fence_handle **ptr,
 226                      struct pipe_fence_handle *fence)
 227 {
 228    struct i915_screen *is = i915_screen(screen);
 229
 230    is->iws->fence_reference(is->iws, ptr, fence);
 231 }
 232
 233 static int
 234 i915_fence_signalled(struct pipe_screen *screen,
 235                      struct pipe_fence_handle *fence,
 236                      unsigned flags)
 237 {
 238    struct i915_screen *is = i915_screen(screen);
 239
 240    return is->iws->fence_signalled(is->iws, fence);
 241 }
 242
 243 static int
 244 i915_fence_finish(struct pipe_screen *screen,
 245                   struct pipe_fence_handle *fence,
 246                   unsigned flags)
 247 {
 248    struct i915_screen *is = i915_screen(screen);
 249
 250    return is->iws->fence_finish(is->iws, fence);
 251 }
 252
 253
 254 /*
 255  * Generic functions
 256  */
 257
 258
 259 static void
 260 i915_destroy_screen(struct pipe_screen *screen)
 261 {
 262    struct i915_screen *is = i915_screen(screen);
 263
 264    if (is->iws)
 265       is->iws->destroy(is->iws);
 266
 267    FREE(is);
 268 }
 269
 270 /**
 271  * Create a new i915_screen object
 272  */
 273 struct pipe_screen *
 274 i915_create_screen(struct i915_winsys *iws, uint pci_id)
 275 {
 276    struct i915_screen *is = CALLOC_STRUCT(i915_screen);
 277
 278    if (!is)
 279       return NULL;
 280
 281    switch (pci_id) {
 282    case PCI_CHIP_I915_G:
 283    case PCI_CHIP_I915_GM:
 284       is->is_i945 = FALSE;
 285       break;
 286
 287    case PCI_CHIP_I945_G:
 288    case PCI_CHIP_I945_GM:
 289    case PCI_CHIP_I945_GME:
 290    case PCI_CHIP_G33_G:
 291    case PCI_CHIP_Q33_G:
 292    case PCI_CHIP_Q35_G:
 293       is->is_i945 = TRUE;
 294       break;
 295
 296    default:
 297       debug_printf("%s: unknown pci id 0x%x, cannot create screen\n",
 298                    __FUNCTION__, pci_id);
 299       FREE(is);
 300       return NULL;
 301    }
 302
 303    is->pci_id = pci_id;
 304    is->iws = iws;
 305
 306    is->base.winsys = NULL;
 307
 308    is->base.destroy = i915_destroy_screen;
 309
 310    is->base.get_name = i915_get_name;
 311    is->base.get_vendor = i915_get_vendor;
 312    is->base.get_param = i915_get_param;
 313    is->base.get_paramf = i915_get_paramf;
 314    is->base.is_format_supported = i915_is_format_supported;
 315
 316    is->base.context_create = i915_create_context;
 317
 318    is->base.fence_reference = i915_fence_reference;
 319    is->base.fence_signalled = i915_fence_signalled;
 320    is->base.fence_finish = i915_fence_finish;
 321
 322    i915_init_screen_resource_functions(is);
 323    i915_init_screen_surface_functions(is);
 324
 325    return &is->base;
 326 }