コード例 #1
0
ファイル: brw_tex_layout.c プロジェクト: dumbbell/mesa
static void
intel_miptree_set_total_width_height(struct brw_context *brw,
                                     struct intel_mipmap_tree *mt)
{
   switch (mt->target) {
   case GL_TEXTURE_CUBE_MAP:
      if (brw->gen == 4) {
         /* Gen4 stores cube maps as 3D textures. */
         assert(mt->physical_depth0 == 6);
         brw_miptree_layout_texture_3d(brw, mt);
      } else {
         /* All other hardware stores cube maps as 2D arrays. */
	 brw_miptree_layout_texture_array(brw, mt);
      }
      break;

   case GL_TEXTURE_3D:
      if (brw->gen >= 9)
         brw_miptree_layout_texture_array(brw, mt);
      else
         brw_miptree_layout_texture_3d(brw, mt);
      break;

   case GL_TEXTURE_1D_ARRAY:
   case GL_TEXTURE_2D_ARRAY:
   case GL_TEXTURE_2D_MULTISAMPLE_ARRAY:
   case GL_TEXTURE_CUBE_MAP_ARRAY:
      brw_miptree_layout_texture_array(brw, mt);
      break;

   default:
      switch (mt->msaa_layout) {
      case INTEL_MSAA_LAYOUT_UMS:
      case INTEL_MSAA_LAYOUT_CMS:
         brw_miptree_layout_texture_array(brw, mt);
         break;
      case INTEL_MSAA_LAYOUT_NONE:
      case INTEL_MSAA_LAYOUT_IMS:
         if (gen9_use_linear_1d_layout(brw, mt))
            gen9_miptree_layout_1d(mt);
         else
            brw_miptree_layout_2d(mt);
         break;
      }
      break;
   }

   DBG("%s: %dx%dx%d\n", __func__,
       mt->total_width, mt->total_height, mt->cpp);
}
コード例 #2
0
ファイル: brw_tex_layout.c プロジェクト: dumbbell/mesa
static void
brw_miptree_layout_texture_array(struct brw_context *brw,
				 struct intel_mipmap_tree *mt)
{
   unsigned height = mt->physical_height0;
   bool layout_1d = gen9_use_linear_1d_layout(brw, mt);
   int physical_qpitch;

   if (layout_1d)
      gen9_miptree_layout_1d(mt);
   else
      brw_miptree_layout_2d(mt);

   if (layout_1d) {
      physical_qpitch = 1;
      /* When using the horizontal layout the qpitch specifies the distance in
       * pixels between array slices. The total_width is forced to be a
       * multiple of the horizontal alignment in brw_miptree_layout_1d (in
       * this case it's always 64). The vertical alignment is ignored.
       */
      mt->qpitch = mt->total_width;
   } else {
      mt->qpitch = brw_miptree_get_vertical_slice_pitch(brw, mt, 0);
      /* Unlike previous generations the qpitch is a multiple of the
       * compressed block size on Gen9 so physical_qpitch matches mt->qpitch.
       */
      physical_qpitch = (mt->compressed && brw->gen < 9 ? mt->qpitch / 4 :
                         mt->qpitch);
   }

   for (unsigned level = mt->first_level; level <= mt->last_level; level++) {
      unsigned img_height;
      img_height = ALIGN_NPOT(height, mt->align_h);
      if (mt->compressed)
         img_height /= mt->align_h;

      for (unsigned q = 0; q < mt->level[level].depth; q++) {
         if (mt->array_layout == ALL_SLICES_AT_EACH_LOD) {
            intel_miptree_set_image_offset(mt, level, q, 0, q * img_height);
         } else {
            intel_miptree_set_image_offset(mt, level, q, 0, q * physical_qpitch);
         }
      }
      height = minify(height, 1);
   }
   if (mt->array_layout == ALL_LOD_IN_EACH_SLICE)
      mt->total_height = physical_qpitch * mt->physical_depth0;

   align_cube(mt);
}
コード例 #3
0
ファイル: brw_tex_layout.c プロジェクト: vsyrjala/mesa
static void
brw_miptree_layout_texture_array(struct brw_context *brw,
				 struct intel_mipmap_tree *mt)
{
   int h0, h1;
   unsigned height = mt->physical_height0;
   bool layout_1d = use_linear_1d_layout(brw, mt);

   h0 = ALIGN(mt->physical_height0, mt->align_h);
   h1 = ALIGN(minify(mt->physical_height0, 1), mt->align_h);
   if (mt->array_layout == ALL_SLICES_AT_EACH_LOD)
      mt->qpitch = h0;
   else
      mt->qpitch = (h0 + h1 + (brw->gen >= 7 ? 12 : 11) * mt->align_h);

   int physical_qpitch = mt->compressed ? mt->qpitch / 4 : mt->qpitch;

   if (layout_1d)
      gen9_miptree_layout_1d(mt);
   else
      brw_miptree_layout_2d(mt);

   for (unsigned level = mt->first_level; level <= mt->last_level; level++) {
      unsigned img_height;
      img_height = ALIGN(height, mt->align_h);
      if (mt->compressed)
         img_height /= mt->align_h;

      for (int q = 0; q < mt->level[level].depth; q++) {
         if (mt->array_layout == ALL_SLICES_AT_EACH_LOD) {
            intel_miptree_set_image_offset(mt, level, q, 0, q * img_height);
         } else {
            intel_miptree_set_image_offset(mt, level, q, 0, q * physical_qpitch);
         }
      }
      height = minify(height, 1);
   }
   if (mt->array_layout == ALL_LOD_IN_EACH_SLICE)
      mt->total_height = physical_qpitch * mt->physical_depth0;

   align_cube(mt);
}
コード例 #4
0
ファイル: brw_tex_layout.c プロジェクト: vsyrjala/mesa
void
brw_miptree_layout(struct brw_context *brw, struct intel_mipmap_tree *mt)
{
   bool multisampled = mt->num_samples > 1;
   bool gen6_hiz_or_stencil = false;

   if (brw->gen == 6 && mt->array_layout == ALL_SLICES_AT_EACH_LOD) {
      const GLenum base_format = _mesa_get_format_base_format(mt->format);
      gen6_hiz_or_stencil = _mesa_is_depth_or_stencil_format(base_format);
   }

   if (gen6_hiz_or_stencil) {
      /* On gen6, we use ALL_SLICES_AT_EACH_LOD for stencil/hiz because the
       * hardware doesn't support multiple mip levels on stencil/hiz.
       *
       * PRM Vol 2, Part 1, 7.5.3 Hierarchical Depth Buffer:
       * "The hierarchical depth buffer does not support the LOD field"
       *
       * PRM Vol 2, Part 1, 7.5.4.1 Separate Stencil Buffer:
       * "The stencil depth buffer does not support the LOD field"
       */
      if (mt->format == MESA_FORMAT_S_UINT8) {
         /* Stencil uses W tiling, so we force W tiling alignment for the
          * ALL_SLICES_AT_EACH_LOD miptree layout.
          */
         mt->align_w = 64;
         mt->align_h = 64;
      } else {
         /* Depth uses Y tiling, so we force need Y tiling alignment for the
          * ALL_SLICES_AT_EACH_LOD miptree layout.
          */
         mt->align_w = 128 / mt->cpp;
         mt->align_h = 32;
      }
   } else {
      mt->align_w = intel_horizontal_texture_alignment_unit(brw, mt);
      mt->align_h =
         intel_vertical_texture_alignment_unit(brw, mt->format, multisampled);
   }

   switch (mt->target) {
   case GL_TEXTURE_CUBE_MAP:
      if (brw->gen == 4) {
         /* Gen4 stores cube maps as 3D textures. */
         assert(mt->physical_depth0 == 6);
         brw_miptree_layout_texture_3d(brw, mt);
      } else {
         /* All other hardware stores cube maps as 2D arrays. */
	 brw_miptree_layout_texture_array(brw, mt);
      }
      break;

   case GL_TEXTURE_3D:
      if (brw->gen >= 9)
         brw_miptree_layout_texture_array(brw, mt);
      else
         brw_miptree_layout_texture_3d(brw, mt);
      break;

   case GL_TEXTURE_1D_ARRAY:
   case GL_TEXTURE_2D_ARRAY:
   case GL_TEXTURE_2D_MULTISAMPLE_ARRAY:
   case GL_TEXTURE_CUBE_MAP_ARRAY:
      brw_miptree_layout_texture_array(brw, mt);
      break;

   default:
      switch (mt->msaa_layout) {
      case INTEL_MSAA_LAYOUT_UMS:
      case INTEL_MSAA_LAYOUT_CMS:
         brw_miptree_layout_texture_array(brw, mt);
         break;
      case INTEL_MSAA_LAYOUT_NONE:
      case INTEL_MSAA_LAYOUT_IMS:
         if (use_linear_1d_layout(brw, mt))
            gen9_miptree_layout_1d(mt);
         else
            brw_miptree_layout_2d(mt);
         break;
      }
      break;
   }
   DBG("%s: %dx%dx%d\n", __FUNCTION__,
       mt->total_width, mt->total_height, mt->cpp);
}