Module: Mesa Branch: main Commit: 113d88f94d20c5805092609ee25c5c3e49b17505 URL: http://cgit.freedesktop.org/mesa/mesa/commit/?id=113d88f94d20c5805092609ee25c5c3e49b17505
Author: Louis-Francis Ratté-Boulianne <[email protected]> Date: Thu Aug 31 11:33:39 2023 -0400 panfrost: Precalculate stride and nr of blocks for AFBC layouts For AFBC packing, we will need to have the stride of the resource in terms of superblocks and the total number of blocks. It is easier to pre-calculate once when initializing the resource layout. Signed-off-by: Louis-Francis Ratté-Boulianne <[email protected]> Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/25012> --- src/panfrost/lib/pan_layout.c | 3 +++ src/panfrost/lib/pan_texture.h | 6 ++++++ 2 files changed, 9 insertions(+) diff --git a/src/panfrost/lib/pan_layout.c b/src/panfrost/lib/pan_layout.c index 309f4895c30..b5789e2a7b1 100644 --- a/src/panfrost/lib/pan_layout.c +++ b/src/panfrost/lib/pan_layout.c @@ -410,6 +410,9 @@ pan_image_layout_init(const struct panfrost_device *dev, if (afbc) { slice->row_stride = pan_afbc_row_stride(layout->modifier, effective_width); + slice->afbc.stride = effective_width / block_size.width; + slice->afbc.nr_blocks = + slice->afbc.stride * (effective_height / block_size.height); slice->afbc.header_size = ALIGN_POT(slice->row_stride * (effective_height / align_h), pan_afbc_body_align(layout->modifier)); diff --git a/src/panfrost/lib/pan_texture.h b/src/panfrost/lib/pan_texture.h index 80028be275b..474bdc0b0da 100644 --- a/src/panfrost/lib/pan_texture.h +++ b/src/panfrost/lib/pan_texture.h @@ -63,6 +63,12 @@ struct pan_image_slice_layout { unsigned surface_stride; struct { + /* Stride in number of superblocks */ + unsigned stride; + + /* Number of superblocks */ + unsigned nr_blocks; + /* Size of the AFBC header preceding each slice */ unsigned header_size;
