+static enum gen_surface_type
+get_surface_type(enum pipe_texture_target target)
+{
+ switch (target) {
+ case PIPE_TEXTURE_1D:
+ case PIPE_TEXTURE_1D_ARRAY:
+ return GEN6_SURFTYPE_1D;
+ case PIPE_TEXTURE_2D:
+ case PIPE_TEXTURE_RECT:
+ case PIPE_TEXTURE_2D_ARRAY:
+ return GEN6_SURFTYPE_2D;
+ case PIPE_TEXTURE_3D:
+ return GEN6_SURFTYPE_3D;
+ case PIPE_TEXTURE_CUBE:
+ case PIPE_TEXTURE_CUBE_ARRAY:
+ return GEN6_SURFTYPE_CUBE;
+ default:
+ assert(!"unknown texture target");
+ return GEN6_SURFTYPE_NULL;
+ }
+}
+
+static enum pipe_format
+resource_get_image_format(const struct pipe_resource *templ,
+ const struct ilo_dev *dev,
+ bool *separate_stencil_ret)
+{
+ enum pipe_format format = templ->format;
+ bool separate_stencil;
+
+ /* silently promote ETC1 */
+ if (templ->format == PIPE_FORMAT_ETC1_RGB8)
+ format = PIPE_FORMAT_R8G8B8X8_UNORM;
+
+ /* separate stencil buffers */
+ separate_stencil = false;
+ if ((templ->bind & PIPE_BIND_DEPTH_STENCIL) &&
+ util_format_is_depth_and_stencil(templ->format)) {
+ switch (templ->format) {
+ case PIPE_FORMAT_Z32_FLOAT_S8X24_UINT:
+ /* Gen6 requires HiZ to be available for all levels */
+ if (ilo_dev_gen(dev) >= ILO_GEN(7) || templ->last_level == 0) {
+ format = PIPE_FORMAT_Z32_FLOAT;
+ separate_stencil = true;
+ }
+ break;
+ case PIPE_FORMAT_Z24_UNORM_S8_UINT:
+ format = PIPE_FORMAT_Z24X8_UNORM;
+ separate_stencil = true;
+ break;
+ default:
+ break;
+ }
+ }
+
+ if (separate_stencil_ret)
+ *separate_stencil_ret = separate_stencil;
+
+ return format;
+}
+
+static inline enum gen_surface_format
+pipe_to_surface_format(const struct ilo_dev *dev, enum pipe_format format)
+{
+ switch (format) {
+ case PIPE_FORMAT_Z32_FLOAT_S8X24_UINT:
+ return GEN6_FORMAT_R32_FLOAT_X8X24_TYPELESS;
+ case PIPE_FORMAT_Z32_FLOAT:
+ return GEN6_FORMAT_R32_FLOAT;
+ case PIPE_FORMAT_Z24_UNORM_S8_UINT:
+ case PIPE_FORMAT_Z24X8_UNORM:
+ return GEN6_FORMAT_R24_UNORM_X8_TYPELESS;
+ case PIPE_FORMAT_Z16_UNORM:
+ return GEN6_FORMAT_R16_UNORM;
+ case PIPE_FORMAT_S8_UINT:
+ return GEN6_FORMAT_R8_UINT;
+ default:
+ return ilo_format_translate_color(dev, format);
+ }
+}
+
+static void
+resource_get_image_info(const struct pipe_resource *templ,
+ const struct ilo_dev *dev,
+ enum pipe_format image_format,
+ struct ilo_image_info *info)
+{
+ memset(info, 0, sizeof(*info));
+
+ info->type = get_surface_type(templ->target);
+
+ info->format = pipe_to_surface_format(dev, image_format);
+ info->interleaved_stencil = util_format_is_depth_and_stencil(image_format);
+ info->is_integer = util_format_is_pure_integer(image_format);
+ info->compressed = util_format_is_compressed(image_format);
+ info->block_width = util_format_get_blockwidth(image_format);
+ info->block_height = util_format_get_blockheight(image_format);
+ info->block_size = util_format_get_blocksize(image_format);
+
+ info->width = templ->width0;
+ info->height = templ->height0;
+ info->depth = templ->depth0;
+ info->array_size = templ->array_size;
+ info->level_count = templ->last_level + 1;
+ info->sample_count = (templ->nr_samples) ? templ->nr_samples : 1;
+
+ info->aux_disable = (templ->usage == PIPE_USAGE_STAGING);
+
+ if (templ->bind & PIPE_BIND_LINEAR)
+ info->valid_tilings = 1 << GEN6_TILING_NONE;
+
+ /*
+ * Tiled images must be mapped via GTT to get a linear view. Prefer linear
+ * images when the image size is greater than one-fourth of the mappable
+ * aperture.
+ */
+ if (templ->usage == PIPE_USAGE_STAGING)
+ info->prefer_linear_threshold = dev->aperture_mappable / 4;
+
+ info->bind_surface_sampler = (templ->bind & PIPE_BIND_SAMPLER_VIEW);
+ info->bind_surface_dp_render = (templ->bind & PIPE_BIND_RENDER_TARGET);
+ info->bind_surface_dp_typed = (templ->bind &
+ (PIPE_BIND_SHADER_IMAGE | PIPE_BIND_COMPUTE_RESOURCE));
+ info->bind_zs = (templ->bind & PIPE_BIND_DEPTH_STENCIL);
+ info->bind_scanout = (templ->bind & PIPE_BIND_SCANOUT);
+ info->bind_cursor = (templ->bind & PIPE_BIND_CURSOR);
+}
+