On Mon, Nov 27, 2017 at 07:06:10PM -0800, Jason Ekstrand wrote: > This moves the decision out of begin_subpass and into BeginRenderPass > like the decision for color clears. We use a similar name for the > function for depth/stencil as for color even though no aux usage is > really getting computed. > --- > src/intel/vulkan/genX_cmd_buffer.c | 84 > +++++++++++++++++++++++--------------- > 1 file changed, 50 insertions(+), 34 deletions(-) > > diff --git a/src/intel/vulkan/genX_cmd_buffer.c > b/src/intel/vulkan/genX_cmd_buffer.c > index 57685bd..3f90c1a 100644 > --- a/src/intel/vulkan/genX_cmd_buffer.c > +++ b/src/intel/vulkan/genX_cmd_buffer.c > @@ -346,6 +346,52 @@ color_attachment_compute_aux_usage(struct anv_device * > device, > } > } > > +static void > +depth_stencil_attachment_compute_aux_usage(struct anv_device *device, > + struct anv_cmd_state *cmd_state, > + uint32_t att, VkRect2D > render_area) > +{ > + struct anv_attachment_state *att_state = &cmd_state->attachments[att]; > + struct anv_image_view *iview = cmd_state->framebuffer->attachments[att]; > + > + /* These will be initialized after the first subpass transition. */ > + att_state->aux_usage = ISL_AUX_USAGE_NONE; > + att_state->input_aux_usage = ISL_AUX_USAGE_NONE; > + > + if (att_state->aux_usage != ISL_AUX_USAGE_HIZ) { > + att_state->fast_clear = false; > + return; > + } else if (!(att_state->pending_clear_aspects & > VK_IMAGE_ASPECT_DEPTH_BIT)) { > + /* If we're just clearing stencil, we can always HiZ clear */ > + att_state->fast_clear = true;
I need to check that I understood. This is possible because the clear doesn't trigger for depth later on, right? If so, what does setting fast_clear actually help? > + return; > + } > + > + if (!blorp_can_hiz_clear_depth(GEN_GEN, > + iview->planes[0].isl.format, > + iview->image->samples, > + render_area.offset.x, > + render_area.offset.y, > + render_area.offset.x + > + render_area.extent.width, > + render_area.offset.y + > + render_area.extent.height)) { > + att_state->fast_clear = false; > + } else if (att_state->clear_value.depthStencil.depth != ANV_HZ_FC_VAL) { > + att_state->fast_clear = false; > + } else if (GEN_GEN == 8 && > + anv_can_sample_with_hiz(&device->info, iview->image)) { > + /* Only gen9+ supports returning ANV_HZ_FC_VAL when sampling a > + * fast-cleared portion of a HiZ buffer. Testing has revealed that Gen8 > + * only supports returning 0.0f. Gens prior to gen8 do not support this > + * feature at all. > + */ > + att_state->fast_clear = false; > + } else { > + att_state->fast_clear = true; > + } > +} > + > static bool > need_input_attachment_state(const struct anv_render_pass_attachment *att) > { > @@ -1052,12 +1098,9 @@ genX(cmd_buffer_setup_attachments)(struct > anv_cmd_buffer *cmd_buffer, > add_image_view_relocs(cmd_buffer, iview, 0, > state->attachments[i].color); > } else { > - /* This field will be initialized after the first subpass > - * transition. > - */ > - state->attachments[i].aux_usage = ISL_AUX_USAGE_NONE; > - > - state->attachments[i].input_aux_usage = ISL_AUX_USAGE_NONE; > + depth_stencil_attachment_compute_aux_usage(cmd_buffer->device, > + state, i, > + begin->renderArea); > } > > if (need_input_attachment_state(&pass->attachments[i])) { > @@ -3228,34 +3271,7 @@ cmd_buffer_begin_subpass(struct anv_cmd_buffer > *cmd_buffer, > VK_IMAGE_ASPECT_STENCIL_BIT)); > > if (att_state->pending_clear_aspects) { > - bool clear_with_hiz = att_state->aux_usage == ISL_AUX_USAGE_HIZ; > - if (clear_with_hiz && > - (att_state->pending_clear_aspects & VK_IMAGE_ASPECT_DEPTH_BIT)) > { > - if (!blorp_can_hiz_clear_depth(GEN_GEN, > - iview->planes[0].isl.format, > - iview->image->samples, > - render_area.offset.x, > - render_area.offset.y, > - render_area.offset.x + > - render_area.extent.width, > - render_area.offset.y + > - render_area.extent.height)) { > - clear_with_hiz = false; > - } else if (att_state->clear_value.depthStencil.depth != > ANV_HZ_FC_VAL) { > - clear_with_hiz = false; > - } else if (GEN_GEN == 8 && > - anv_can_sample_with_hiz(&cmd_buffer->device->info, > - iview->image)) { > - /* Only gen9+ supports returning ANV_HZ_FC_VAL when sampling a > - * fast-cleared portion of a HiZ buffer. Testing has revealed > - * that Gen8 only supports returning 0.0f. Gens prior to gen8 > - * do not support this feature at all. > - */ > - clear_with_hiz = false; > - } > - } > - > - if (clear_with_hiz) { > + if (att_state->fast_clear) { > /* We currently only support HiZ for single-layer images */ > assert(iview->planes[0].isl.base_level == 0); > assert(iview->planes[0].isl.base_array_layer == 0); > -- > 2.5.0.400.gff86faf > > _______________________________________________ > mesa-dev mailing list > mesa-dev@lists.freedesktop.org > https://lists.freedesktop.org/mailman/listinfo/mesa-dev _______________________________________________ mesa-dev mailing list mesa-dev@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/mesa-dev