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nv50: make rtt work again

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This commit is contained in:
Ben Skeggs 2009-01-12 16:47:17 +10:00
parent ac6516101b
commit 7a90ace9c8
1 changed files with 33 additions and 1 deletions
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34
src/gallium/drivers/nv50/nv50_miptree.c
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@ -178,6 +178,38 @@ nv50_miptree_sync(struct pipe_screen *pscreen, struct nv50_miptree *mt,
pscreen->tex_surface_release(pscreen, &src);
}
/* The reverse of the above */
void
nv50_miptree_sync_cpu(struct pipe_screen *pscreen, struct nv50_miptree *mt,
unsigned level, unsigned image)
{
struct nouveau_winsys *nvws = nv50_screen(pscreen)->nvws;
struct nv50_miptree_level *lvl = &mt->level[level];
struct pipe_surface *dst, *src;
unsigned face = 0, zslice = 0;
if (!is_dirty(lvl->image_dirty_gpu, image))
return;
if (mt->base.target == PIPE_TEXTURE_CUBE)
face = image;
else
if (mt->base.target == PIPE_TEXTURE_3D)
zslice = image;
mark_clean(lvl->image_dirty_gpu, image);
src = pscreen->get_tex_surface(pscreen, &mt->base, face, level, zslice,
PIPE_BUFFER_USAGE_GPU_READ);
dst = pscreen->get_tex_surface(pscreen, &mt->base, face, level, zslice,
PIPE_BUFFER_USAGE_CPU_READ);
nvws->surface_copy(nvws, dst, 0, 0, src, 0, 0, dst->width, dst->height);
pscreen->tex_surface_release(pscreen, &dst);
pscreen->tex_surface_release(pscreen, &src);
}
static struct pipe_surface *
nv50_miptree_surface_new(struct pipe_screen *pscreen, struct pipe_texture *pt,
unsigned face, unsigned level, unsigned zslice,
@ -216,7 +248,7 @@ nv50_miptree_surface_new(struct pipe_screen *pscreen, struct pipe_texture *pt,
if (flags & PIPE_BUFFER_USAGE_CPU_READ_WRITE) {
assert(!(flags & PIPE_BUFFER_USAGE_GPU_READ_WRITE));
assert(!is_dirty(lvl->image_dirty_gpu, img));
nv50_miptree_sync_cpu(pscreen, mt, level, img);
ps->offset = 0;
pipe_texture_reference(&ps->texture, pt);