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panfrost/mfbd: Handle rendering to linear mipmap

Browse source 
In anticipation of more general mipmapping support, we implemented
support for rendering to linear mipmaps (a very simple case).

Signed-off-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>
This commit is contained in:
Alyssa Rosenzweig 2019-06-12 15:23:19 -07:00
parent 531715431f
commit d4aed00214
1 changed files with 18 additions and 4 deletions
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22
src/gallium/drivers/panfrost/pan_mfbd.c
View file

@ -88,16 +88,22 @@ panfrost_mfbd_set_cbuf(
struct pipe_surface *surf)
{
struct panfrost_resource *rsrc = pan_resource(surf->texture);
int stride = rsrc->bo->slices[0].stride;
unsigned level = surf->u.tex.level;
assert(surf->u.tex.first_layer == 0);
int stride = rsrc->bo->slices[level].stride;
unsigned offset = rsrc->bo->slices[level].offset;
rt->format = panfrost_mfbd_format(surf);
/* Now, we set the layout specific pieces */
if (rsrc->bo->layout == PAN_LINEAR) {
rt->framebuffer = rsrc->bo->gpu;
rt->framebuffer = rsrc->bo->gpu + offset;
rt->framebuffer_stride = stride / 16;
} else if (rsrc->bo->layout == PAN_AFBC) {
assert(level == 0);
rt->afbc.metadata = rsrc->bo->afbc_slab.gpu;
rt->afbc.stride = 0;
rt->afbc.unk = 0x30009;
@ -123,7 +129,13 @@ panfrost_mfbd_set_zsbuf(
{
struct panfrost_resource *rsrc = pan_resource(surf->texture);
unsigned level = surf->u.tex.level;
assert(surf->u.tex.first_layer == 0);
unsigned offset = rsrc->bo->slices[level].offset;
if (rsrc->bo->layout == PAN_AFBC) {
assert(level == 0);
fb->mfbd_flags |= MALI_MFBD_EXTRA;
fbx->flags =
@ -141,11 +153,13 @@ panfrost_mfbd_set_zsbuf(
fbx->ds_afbc.zero1 = 0x10009;
fbx->ds_afbc.padding = 0x1000;
} else if (rsrc->bo->layout == PAN_LINEAR) {
int stride = rsrc->bo->slices[level].stride;
fb->mfbd_flags |= MALI_MFBD_EXTRA;
fbx->flags |= MALI_EXTRA_PRESENT | MALI_EXTRA_ZS | 0x1;
fbx->ds_linear.depth = rsrc->bo->gpu;
fbx->ds_linear.depth_stride = rsrc->bo->slices[0].stride;
fbx->ds_linear.depth = rsrc->bo->gpu + offset;
fbx->ds_linear.depth_stride = stride;
} else {
assert(0);
}