[Mesa-dev] [PATCH] freedreno/a4xx: only align slices in non-layer_first textures

[Ilia Mirkin]

When layer is the container, slices are tightly packed inside of each
layer. We don't need any additional alignment. On a3xx, each slice
contains all the layers, so having alignment makes sense.

This fixes a whole slew of array-related piglits, including texelFetch
and tex-miplevel-selection varieties.

Signed-off-by: Ilia Mirkin <imirkin at alum.mit.edu>
Cc: mesa-stable at lists.freedesktop.org
---
 src/gallium/drivers/freedreno/freedreno_resource.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/src/gallium/drivers/freedreno/freedreno_resource.c b/src/gallium/drivers/freedreno/freedreno_resource.c
index 43b818f..c8e2779 100644
--- a/src/gallium/drivers/freedreno/freedreno_resource.c
+++ b/src/gallium/drivers/freedreno/freedreno_resource.c
@@ -551,7 +551,7 @@ fd_resource_create(struct pipe_screen *pscreen,
 	struct fd_resource *rsc = CALLOC_STRUCT(fd_resource);
 	struct pipe_resource *prsc = &rsc->base.b;
 	enum pipe_format format = tmpl->format;
-	uint32_t size;
+	uint32_t size, alignment;
 
 	DBG("target=%d, format=%s, %ux%ux%u, array_size=%u, last_level=%u, "
 			"nr_samples=%u, usage=%u, bind=%x, flags=%x",
@@ -583,6 +583,7 @@ fd_resource_create(struct pipe_screen *pscreen,
 
 	assert(rsc->cpp);
 
+	alignment = slice_alignment(pscreen, tmpl);
 	if (is_a4xx(fd_screen(pscreen))) {
 		switch (tmpl->target) {
 		case PIPE_TEXTURE_3D:
@@ -590,11 +591,12 @@ fd_resource_create(struct pipe_screen *pscreen,
 			break;
 		default:
 			rsc->layer_first = true;
+			alignment = 1;
 			break;
 		}
 	}
 
-	size = setup_slices(rsc, slice_alignment(pscreen, tmpl), format);
+	size = setup_slices(rsc, alignment, format);
 
 	if (rsc->layer_first) {
 		rsc->layer_size = align(size, 4096);
-- 
2.4.10