[Mesa-dev] [PATCH 24/29] anv/cmd_buffer: Do subpass image transitions in begin/end_subpass
Jason Ekstrand
jason at jlekstrand.net
Tue Nov 28 03:06:14 UTC 2017
---
src/intel/vulkan/genX_cmd_buffer.c | 187 +++++++++++++------------------------
1 file changed, 65 insertions(+), 122 deletions(-)
diff --git a/src/intel/vulkan/genX_cmd_buffer.c b/src/intel/vulkan/genX_cmd_buffer.c
index 7901b0c..2c4ab38 100644
--- a/src/intel/vulkan/genX_cmd_buffer.c
+++ b/src/intel/vulkan/genX_cmd_buffer.c
@@ -2982,120 +2982,6 @@ cmd_buffer_emit_depth_stencil(struct anv_cmd_buffer *cmd_buffer)
cmd_buffer->state.hiz_enabled = info.hiz_usage == ISL_AUX_USAGE_HIZ;
}
-
-/**
- * @brief Perform any layout transitions required at the beginning and/or end
- * of the current subpass for depth buffers.
- *
- * TODO: Consider preprocessing the attachment reference array at render pass
- * create time to determine if no layout transition is needed at the
- * beginning and/or end of each subpass.
- *
- * @param cmd_buffer The command buffer the transition is happening within.
- * @param subpass_end If true, marks that the transition is happening at the
- * end of the subpass.
- */
-static void
-cmd_buffer_subpass_transition_layouts(struct anv_cmd_buffer * const cmd_buffer,
- const bool subpass_end)
-{
- /* We need a non-NULL command buffer. */
- assert(cmd_buffer);
-
- const struct anv_cmd_state * const cmd_state = &cmd_buffer->state;
- const struct anv_subpass * const subpass = cmd_state->subpass;
-
- /* This function must be called within a subpass. */
- assert(subpass);
-
- /* If there are attachment references, the array shouldn't be NULL.
- */
- if (subpass->attachment_count > 0)
- assert(subpass->attachments);
-
- /* Iterate over the array of attachment references. */
- for (const VkAttachmentReference *att_ref = subpass->attachments;
- att_ref < subpass->attachments + subpass->attachment_count; att_ref++) {
-
- /* If the attachment is unused, we can't perform a layout transition. */
- if (att_ref->attachment == VK_ATTACHMENT_UNUSED)
- continue;
-
- /* This attachment index shouldn't go out of bounds. */
- assert(att_ref->attachment < cmd_state->pass->attachment_count);
-
- const struct anv_render_pass_attachment * const att_desc =
- &cmd_state->pass->attachments[att_ref->attachment];
- struct anv_attachment_state * const att_state =
- &cmd_buffer->state.attachments[att_ref->attachment];
-
- /* The attachment should not be used in a subpass after its last. */
- assert(att_desc->last_subpass_idx >= anv_get_subpass_id(cmd_state));
-
- if (subpass_end && anv_get_subpass_id(cmd_state) <
- att_desc->last_subpass_idx) {
- /* We're calling this function on a buffer twice in one subpass and
- * this is not the last use of the buffer. The layout should not have
- * changed from the first call and no transition is necessary.
- */
- assert(att_state->current_layout == att_ref->layout ||
- att_state->current_layout ==
- VK_IMAGE_LAYOUT_COLOR_ATTACHMENT_OPTIMAL);
- continue;
- }
-
- /* The attachment index must be less than the number of attachments
- * within the framebuffer.
- */
- assert(att_ref->attachment < cmd_state->framebuffer->attachment_count);
-
- const struct anv_image_view * const iview =
- cmd_state->framebuffer->attachments[att_ref->attachment];
- const struct anv_image * const image = iview->image;
-
- /* Get the appropriate target layout for this attachment. */
- VkImageLayout target_layout;
-
- /* A resolve is necessary before use as an input attachment if the clear
- * color or auxiliary buffer usage isn't supported by the sampler.
- */
- const bool input_needs_resolve =
- (att_state->fast_clear && !att_state->clear_color_is_zero_one) ||
- att_state->input_aux_usage != att_state->aux_usage;
- if (subpass_end) {
- target_layout = att_desc->final_layout;
- } else if (iview->aspect_mask & VK_IMAGE_ASPECT_ANY_COLOR_BIT_ANV &&
- !input_needs_resolve) {
- /* Layout transitions before the final only help to enable sampling as
- * an input attachment. If the input attachment supports sampling
- * using the auxiliary surface, we can skip such transitions by making
- * the target layout one that is CCS-aware.
- */
- target_layout = VK_IMAGE_LAYOUT_COLOR_ATTACHMENT_OPTIMAL;
- } else {
- target_layout = att_ref->layout;
- }
-
- /* Perform the layout transition. */
- if (image->aspects & VK_IMAGE_ASPECT_DEPTH_BIT) {
- transition_depth_buffer(cmd_buffer, image,
- att_state->current_layout, target_layout);
- att_state->aux_usage =
- anv_layout_to_aux_usage(&cmd_buffer->device->info, image,
- VK_IMAGE_ASPECT_DEPTH_BIT, target_layout);
- } else if (image->aspects & VK_IMAGE_ASPECT_ANY_COLOR_BIT_ANV) {
- assert(image->aspects == VK_IMAGE_ASPECT_COLOR_BIT);
- transition_color_buffer(cmd_buffer, image, VK_IMAGE_ASPECT_COLOR_BIT,
- iview->planes[0].isl.base_level, 1,
- iview->planes[0].isl.base_array_layer,
- iview->planes[0].isl.array_len,
- att_state->current_layout, target_layout);
- }
-
- att_state->current_layout = target_layout;
- }
-}
-
static void
cmd_buffer_begin_subpass(struct anv_cmd_buffer *cmd_buffer,
uint32_t subpass_id)
@@ -3120,11 +3006,6 @@ cmd_buffer_begin_subpass(struct anv_cmd_buffer *cmd_buffer,
cmd_buffer->state.pending_pipe_bits |=
cmd_buffer->state.pass->subpass_flushes[subpass_id];
- /* Perform transitions to the subpass layout before any writes have
- * occurred.
- */
- cmd_buffer_subpass_transition_layouts(cmd_buffer, false);
-
VkRect2D render_area = cmd_buffer->state.render_area;
struct anv_framebuffer *fb = cmd_buffer->state.framebuffer;
@@ -3139,6 +3020,39 @@ cmd_buffer_begin_subpass(struct anv_cmd_buffer *cmd_buffer,
struct anv_image_view *iview = fb->attachments[a];
const struct anv_image *image = iview->image;
+ /* A resolve is necessary before use as an input attachment if the clear
+ * color or auxiliary buffer usage isn't supported by the sampler.
+ */
+ const bool input_needs_resolve =
+ (att_state->fast_clear && !att_state->clear_color_is_zero_one) ||
+ att_state->input_aux_usage != att_state->aux_usage;
+
+ VkImageLayout target_layout;
+ if (iview->aspect_mask & VK_IMAGE_ASPECT_ANY_COLOR_BIT_ANV &&
+ !input_needs_resolve) {
+ /* Layout transitions before the final only help to enable sampling
+ * as an input attachment. If the input attachment supports sampling
+ * using the auxiliary surface, we can skip such transitions by
+ * making the target layout one that is CCS-aware.
+ */
+ target_layout = VK_IMAGE_LAYOUT_COLOR_ATTACHMENT_OPTIMAL;
+ } else {
+ target_layout = subpass->attachments[i].layout;
+ }
+
+ if (image->aspects & VK_IMAGE_ASPECT_ANY_COLOR_BIT_ANV) {
+ assert(image->aspects == VK_IMAGE_ASPECT_COLOR_BIT);
+ transition_color_buffer(cmd_buffer, image, VK_IMAGE_ASPECT_COLOR_BIT,
+ iview->planes[0].isl.base_level, 1,
+ iview->planes[0].isl.base_array_layer,
+ iview->planes[0].isl.array_len,
+ att_state->current_layout, target_layout);
+ } else if (image->aspects & VK_IMAGE_ASPECT_DEPTH_BIT) {
+ transition_depth_buffer(cmd_buffer, image,
+ att_state->current_layout, target_layout);
+ }
+ att_state->current_layout = target_layout;
+
if (att_state->pending_clear_aspects & VK_IMAGE_ASPECT_COLOR_BIT) {
assert(att_state->pending_clear_aspects == VK_IMAGE_ASPECT_COLOR_BIT);
@@ -3251,13 +3165,42 @@ cmd_buffer_begin_subpass(struct anv_cmd_buffer *cmd_buffer,
static void
cmd_buffer_end_subpass(struct anv_cmd_buffer *cmd_buffer)
{
+ struct anv_cmd_state *cmd_state = &cmd_buffer->state;
+ struct anv_subpass *subpass = cmd_state->subpass;
uint32_t subpass_id = anv_get_subpass_id(&cmd_buffer->state);
anv_cmd_buffer_resolve_subpass(cmd_buffer);
- /* Perform transitions to the final layout after all writes have occurred.
- */
- cmd_buffer_subpass_transition_layouts(cmd_buffer, true);
+ struct anv_framebuffer *fb = cmd_buffer->state.framebuffer;
+ for (uint32_t i = 0; i < subpass->attachment_count; ++i) {
+ const uint32_t a = subpass->attachments[i].attachment;
+ if (a == VK_ATTACHMENT_UNUSED)
+ continue;
+
+ if (cmd_state->pass->attachments[a].last_subpass_idx != subpass_id)
+ continue;
+
+ assert(a < cmd_state->pass->attachment_count);
+ struct anv_attachment_state *att_state = &cmd_state->attachments[a];
+ struct anv_image_view *iview = fb->attachments[a];
+ const struct anv_image *image = iview->image;
+
+ /* Transition the image into the final layout for this render pass */
+ VkImageLayout target_layout =
+ cmd_state->pass->attachments[a].final_layout;
+
+ if (image->aspects & VK_IMAGE_ASPECT_ANY_COLOR_BIT_ANV) {
+ assert(image->aspects == VK_IMAGE_ASPECT_COLOR_BIT);
+ transition_color_buffer(cmd_buffer, image, VK_IMAGE_ASPECT_COLOR_BIT,
+ iview->planes[0].isl.base_level, 1,
+ iview->planes[0].isl.base_array_layer,
+ iview->planes[0].isl.array_len,
+ att_state->current_layout, target_layout);
+ } else if (image->aspects & VK_IMAGE_ASPECT_DEPTH_BIT) {
+ transition_depth_buffer(cmd_buffer, image,
+ att_state->current_layout, target_layout);
+ }
+ }
/* Accumulate any subpass flushes that need to happen after the subpass.
* Yes, they do get accumulated twice in the NextSubpass case but since
--
2.5.0.400.gff86faf
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