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 "pipe/p_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_buffer.h"
  37 #include "i915_texture.h"
  38 #include "intel_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, int param)
  94 {
  95    switch (param) {
  96    case PIPE_CAP_MAX_TEXTURE_IMAGE_UNITS:
  97       return 8;
  98    case PIPE_CAP_NPOT_TEXTURES:
  99       return 1;
 100    case PIPE_CAP_TWO_SIDED_STENCIL:
 101       return 1;
 102    case PIPE_CAP_GLSL:
 103       return 0;
 104    case PIPE_CAP_ANISOTROPIC_FILTER:
 105       return 0;
 106    case PIPE_CAP_POINT_SPRITE:
 107       return 0;
 108    case PIPE_CAP_MAX_RENDER_TARGETS:
 109       return 1;
 110    case PIPE_CAP_OCCLUSION_QUERY:
 111       return 0;
 112    case PIPE_CAP_TEXTURE_SHADOW_MAP:
 113       return 1;
 114    case PIPE_CAP_MAX_TEXTURE_2D_LEVELS:
 115       return 11; /* max 1024x1024 */
 116    case PIPE_CAP_MAX_TEXTURE_3D_LEVELS:
 117       return 8;  /* max 128x128x128 */
 118    case PIPE_CAP_MAX_TEXTURE_CUBE_LEVELS:
 119       return 11; /* max 1024x1024 */
 120    default:
 121       return 0;
 122    }
 123 }
 124
 125 static float
 126 i915_get_paramf(struct pipe_screen *screen, int param)
 127 {
 128    switch (param) {
 129    case PIPE_CAP_MAX_LINE_WIDTH:
 130       /* fall-through */
 131    case PIPE_CAP_MAX_LINE_WIDTH_AA:
 132       return 7.5;
 133
 134    case PIPE_CAP_MAX_POINT_WIDTH:
 135       /* fall-through */
 136    case PIPE_CAP_MAX_POINT_WIDTH_AA:
 137       return 255.0;
 138
 139    case PIPE_CAP_MAX_TEXTURE_ANISOTROPY:
 140       return 4.0;
 141
 142    case PIPE_CAP_MAX_TEXTURE_LOD_BIAS:
 143       return 16.0;
 144
 145    default:
 146       return 0;
 147    }
 148 }
 149
 150 static boolean
 151 i915_is_format_supported(struct pipe_screen *screen,
 152                          enum pipe_format format,
 153                          enum pipe_texture_target target,
 154                          unsigned tex_usage,
 155                          unsigned geom_flags)
 156 {
 157    static const enum pipe_format tex_supported[] = {
 158       PIPE_FORMAT_R8G8B8A8_UNORM,
 159       PIPE_FORMAT_A8R8G8B8_UNORM,
 160       PIPE_FORMAT_R5G6B5_UNORM,
 161       PIPE_FORMAT_L8_UNORM,
 162       PIPE_FORMAT_A8_UNORM,
 163       PIPE_FORMAT_I8_UNORM,
 164       PIPE_FORMAT_A8L8_UNORM,
 165       PIPE_FORMAT_YCBCR,
 166       PIPE_FORMAT_YCBCR_REV,
 167       PIPE_FORMAT_S8Z24_UNORM,
 168       PIPE_FORMAT_NONE  /* list terminator */
 169    };
 170    static const enum pipe_format surface_supported[] = {
 171       PIPE_FORMAT_A8R8G8B8_UNORM,
 172       PIPE_FORMAT_R5G6B5_UNORM,
 173       PIPE_FORMAT_S8Z24_UNORM,
 174       PIPE_FORMAT_NONE  /* list terminator */
 175    };
 176    const enum pipe_format *list;
 177    uint i;
 178
 179    if(tex_usage & PIPE_TEXTURE_USAGE_RENDER_TARGET)
 180       list = surface_supported;
 181    else
 182       list = tex_supported;
 183
 184    for (i = 0; list[i] != PIPE_FORMAT_NONE; i++) {
 185       if (list[i] == format)
 186          return TRUE;
 187    }
 188
 189    return FALSE;
 190 }
 191
 192
 193 /*
 194  * Fence functions
 195  */
 196
 197
 198 static void
 199 i915_fence_reference(struct pipe_screen *screen,
 200                      struct pipe_fence_handle **ptr,
 201                      struct pipe_fence_handle *fence)
 202 {
 203    struct i915_screen *is = i915_screen(screen);
 204
 205    is->iws->fence_reference(is->iws, ptr, fence);
 206 }
 207
 208 static int
 209 i915_fence_signalled(struct pipe_screen *screen,
 210                      struct pipe_fence_handle *fence,
 211                      unsigned flags)
 212 {
 213    struct i915_screen *is = i915_screen(screen);
 214
 215    return is->iws->fence_signalled(is->iws, fence);
 216 }
 217
 218 static int
 219 i915_fence_finish(struct pipe_screen *screen,
 220                   struct pipe_fence_handle *fence,
 221                   unsigned flags)
 222 {
 223    struct i915_screen *is = i915_screen(screen);
 224
 225    return is->iws->fence_finish(is->iws, fence);
 226 }
 227
 228
 229 /*
 230  * Generic functions
 231  */
 232
 233
 234 static void
 235 i915_destroy_screen(struct pipe_screen *screen)
 236 {
 237    struct i915_screen *is = i915_screen(screen);
 238
 239    if (is->iws)
 240       is->iws->destroy(is->iws);
 241
 242    FREE(is);
 243 }
 244
 245 /**
 246  * Create a new i915_screen object
 247  */
 248 struct pipe_screen *
 249 i915_create_screen(struct intel_winsys *iws, uint pci_id)
 250 {
 251    struct i915_screen *is = CALLOC_STRUCT(i915_screen);
 252
 253    if (!is)
 254       return NULL;
 255
 256    switch (pci_id) {
 257    case PCI_CHIP_I915_G:
 258    case PCI_CHIP_I915_GM:
 259       is->is_i945 = FALSE;
 260       break;
 261
 262    case PCI_CHIP_I945_G:
 263    case PCI_CHIP_I945_GM:
 264    case PCI_CHIP_I945_GME:
 265    case PCI_CHIP_G33_G:
 266    case PCI_CHIP_Q33_G:
 267    case PCI_CHIP_Q35_G:
 268       is->is_i945 = TRUE;
 269       break;
 270
 271    default:
 272       debug_printf("%s: unknown pci id 0x%x, cannot create screen\n",
 273                    __FUNCTION__, pci_id);
 274       return NULL;
 275    }
 276
 277    is->pci_id = pci_id;
 278    is->iws = iws;
 279
 280    is->base.winsys = NULL;
 281
 282    is->base.destroy = i915_destroy_screen;
 283
 284    is->base.get_name = i915_get_name;
 285    is->base.get_vendor = i915_get_vendor;
 286    is->base.get_param = i915_get_param;
 287    is->base.get_paramf = i915_get_paramf;
 288    is->base.is_format_supported = i915_is_format_supported;
 289
 290    is->base.fence_reference = i915_fence_reference;
 291    is->base.fence_signalled = i915_fence_signalled;
 292    is->base.fence_finish = i915_fence_finish;
 293
 294    i915_init_screen_texture_functions(is);
 295    i915_init_screen_buffer_functions(is);
 296
 297    return &is->base;
 298 }