mirror of
https://src.fedoraproject.org/rpms/mesa.git
synced 2024-11-24 17:35:18 +00:00
85 lines
4.1 KiB
Diff
85 lines
4.1 KiB
Diff
From 99d790538de2e7d7d489a8638b13c5aa069c27c3 Mon Sep 17 00:00:00 2001
|
|
From: Eric Anholt <eric@anholt.net>
|
|
Date: Thu, 13 Oct 2016 12:37:59 -0700
|
|
Subject: vc4: Avoid loading from the texture during non-utile-aligned
|
|
glTexImage().
|
|
|
|
Previously, the plan was "if the width/height we have to load/store isn't
|
|
the size the user is planning on writing, then we need to load the old
|
|
contents out beforehand to prevent writing back undefined".
|
|
|
|
However, when we're doing glTexImage() we often end up aligning the
|
|
width/height into the padding of the texture, and we don't actually
|
|
need to read out that padding.
|
|
|
|
Improves x11perf -aatrapezoid100 performance from ~460/sec to
|
|
~700/sec.
|
|
|
|
diff --git a/src/gallium/drivers/vc4/vc4_resource.c b/src/gallium/drivers/vc4/vc4_resource.c
|
|
index 4168079..704cd71 100644
|
|
--- a/src/gallium/drivers/vc4/vc4_resource.c
|
|
+++ b/src/gallium/drivers/vc4/vc4_resource.c
|
|
@@ -284,26 +284,48 @@ vc4_resource_transfer_map(struct pipe_context *pctx,
|
|
return NULL;
|
|
|
|
/* We need to align the box to utile boundaries, since that's
|
|
- * what load/store operate on.
|
|
+ * what load/store operates on. This may cause us to need to
|
|
+ * read out the original contents in that border area. Right
|
|
+ * now we just read out the entire contents, including the
|
|
+ * middle area that will just get overwritten.
|
|
*/
|
|
- uint32_t orig_width = ptrans->box.width;
|
|
- uint32_t orig_height = ptrans->box.height;
|
|
uint32_t box_start_x = ptrans->box.x & (utile_w - 1);
|
|
uint32_t box_start_y = ptrans->box.y & (utile_h - 1);
|
|
- ptrans->box.width += box_start_x;
|
|
- ptrans->box.x -= box_start_x;
|
|
- ptrans->box.height += box_start_y;
|
|
- ptrans->box.y -= box_start_y;
|
|
- ptrans->box.width = align(ptrans->box.width, utile_w);
|
|
- ptrans->box.height = align(ptrans->box.height, utile_h);
|
|
+ bool needs_load = (usage & PIPE_TRANSFER_READ) != 0;
|
|
+
|
|
+ if (box_start_x) {
|
|
+ ptrans->box.width += box_start_x;
|
|
+ ptrans->box.x -= box_start_x;
|
|
+ needs_load = true;
|
|
+ }
|
|
+ if (box_start_y) {
|
|
+ ptrans->box.height += box_start_y;
|
|
+ ptrans->box.y -= box_start_y;
|
|
+ needs_load = true;
|
|
+ }
|
|
+ if (ptrans->box.width & (utile_w - 1)) {
|
|
+ /* We only need to force a load if our border region
|
|
+ * we're extending into is actually part of the
|
|
+ * texture.
|
|
+ */
|
|
+ uint32_t slice_width = u_minify(prsc->width0, level);
|
|
+ if (ptrans->box.x + ptrans->box.width != slice_width)
|
|
+ needs_load = true;
|
|
+ ptrans->box.width = align(ptrans->box.width, utile_w);
|
|
+ }
|
|
+ if (ptrans->box.height & (utile_h - 1)) {
|
|
+ uint32_t slice_height = u_minify(prsc->height0, level);
|
|
+ if (ptrans->box.y + ptrans->box.height != slice_height)
|
|
+ needs_load = true;
|
|
+ ptrans->box.height = align(ptrans->box.height, utile_h);
|
|
+ }
|
|
|
|
ptrans->stride = ptrans->box.width * rsc->cpp;
|
|
ptrans->layer_stride = ptrans->stride * ptrans->box.height;
|
|
|
|
trans->map = malloc(ptrans->layer_stride * ptrans->box.depth);
|
|
- if (usage & PIPE_TRANSFER_READ ||
|
|
- ptrans->box.width != orig_width ||
|
|
- ptrans->box.height != orig_height) {
|
|
+
|
|
+ if (needs_load) {
|
|
vc4_load_tiled_image(trans->map, ptrans->stride,
|
|
buf + slice->offset +
|
|
ptrans->box.z * rsc->cube_map_stride,
|
|
--
|
|
cgit v0.10.2
|
|
|