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freedreno: Introduce a fd_resource_layer_stride() helper.

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This factors out a bit of duplicated code, but will also make the shared
resource layout transition process clearer.

Acked-by: Rob Clark <robdclark@chromium.org>
This commit is contained in:
Eric Anholt 2019-11-20 12:55:56 -08:00
parent 9e9a26c768
commit 6b09227ede
2 changed files with 15 additions and 11 deletions
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9
src/gallium/drivers/freedreno/freedreno_resource.c
View file

@ -531,7 +531,7 @@ fd_resource_transfer_map(struct pipe_context *pctx,
ptrans->usage = usage;
ptrans->box = *box;
ptrans->stride = util_format_get_nblocksx(format, slice->pitch) * rsc->cpp;
ptrans->layer_stride = rsc->layer_first ? rsc->layer_size : slice->size0;
ptrans->layer_stride = fd_resource_layer_stride(rsc, level);
/* we always need a staging texture for tiled buffers:
*
@ -550,8 +550,7 @@ fd_resource_transfer_map(struct pipe_context *pctx,
trans->staging_prsc = &staging_rsc->base;
trans->base.stride = util_format_get_nblocksx(format,
staging_slice->pitch) * staging_rsc->cpp;
trans->base.layer_stride = staging_rsc->layer_first ?
staging_rsc->layer_size : staging_slice->size0;
trans->base.layer_stride = fd_resource_layer_stride(staging_rsc, 0);
trans->staging_box = *box;
trans->staging_box.x = 0;
trans->staging_box.y = 0;
@ -667,8 +666,8 @@ fd_resource_transfer_map(struct pipe_context *pctx,
trans->staging_prsc = &staging_rsc->base;
trans->base.stride = util_format_get_nblocksx(format,
staging_slice->pitch) * staging_rsc->cpp;
trans->base.layer_stride = staging_rsc->layer_first ?
staging_rsc->layer_size : staging_slice->size0;
trans->base.layer_stride =
fd_resource_layer_stride(staging_rsc, 0);
trans->staging_box = *box;
trans->staging_box.x = 0;
trans->staging_box.y = 0;

17
src/gallium/drivers/freedreno/freedreno_resource.h
View file

@ -156,17 +156,22 @@ fd_resource_slice(struct fd_resource *rsc, unsigned level)
return &rsc->slices[level];
}
static inline uint32_t
fd_resource_layer_stride(struct fd_resource *rsc, unsigned level)
{
if (rsc->layer_first)
return rsc->layer_size;
else
return fd_resource_slice(rsc, level)->size0;
}
/* get offset for specified mipmap level and texture/array layer */
static inline uint32_t
fd_resource_offset(struct fd_resource *rsc, unsigned level, unsigned layer)
{
struct fd_resource_slice *slice = fd_resource_slice(rsc, level);
unsigned offset;
if (rsc->layer_first) {
offset = slice->offset + (rsc->layer_size * layer);
} else {
offset = slice->offset + (slice->size0 * layer);
}
unsigned offset = slice->offset;
offset += fd_resource_layer_stride(rsc, level) * layer;
debug_assert(offset < fd_bo_size(rsc->bo));
return offset + rsc->offset;
}