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anv/blorp: Handle VK_ATTACHMENT_UNUSED in CmdClearAttachments

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From the Vulkan 1.0.29 spec for vkCmdClearAttachments:

   "If the subpass’s depth/stencil attachment is VK_ATTACHMENT_UNUSED,
   then the clear has no effect."

and

   "If colorAttachment is VK_ATTACHMENT_UNUSED then the clear has no
   effect."

I have no idea why it's spec'd this way; it seems very anti-Vulkan to me,
but that's what it says and it's really not much work to support.

Signed-off-by: Jason Ekstrand <jason@jlekstrand.net>
Reviewed-by: Nanley Chery <nanley.g.chery@intel.com>
This commit is contained in:
Jason Ekstrand
2016-10-21 23:19:44 -07:00
parent 633677194f
commit e50bf059b0
1 changed files with 8 additions and 0 deletions
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8
src/intel/vulkan/anv_blorp.c
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@@ -932,6 +932,10 @@ clear_color_attachment(struct anv_cmd_buffer *cmd_buffer,
const struct anv_subpass *subpass = cmd_buffer->state.subpass;
const uint32_t color_att = attachment->colorAttachment;
const uint32_t att_idx = subpass->color_attachments[color_att];
if (att_idx == VK_ATTACHMENT_UNUSED)
return;
struct anv_render_pass_attachment *pass_att =
&cmd_buffer->state.pass->attachments[att_idx];
struct anv_attachment_state *att_state =
@@ -966,6 +970,10 @@ clear_depth_stencil_attachment(struct anv_cmd_buffer *cmd_buffer,
static const union isl_color_value color_value = { .u32 = { 0, } };
const struct anv_subpass *subpass = cmd_buffer->state.subpass;
const uint32_t att_idx = subpass->depth_stencil_attachment;
if (att_idx == VK_ATTACHMENT_UNUSED)
return;
struct anv_render_pass_attachment *pass_att =
&cmd_buffer->state.pass->attachments[att_idx];