diff options
Diffstat (limited to 'src/gallium')
| -rw-r--r-- | src/gallium/drivers/nv20/nv20_miptree.c | 31 |
1 files changed, 29 insertions, 2 deletions
diff --git a/src/gallium/drivers/nv20/nv20_miptree.c b/src/gallium/drivers/nv20/nv20_miptree.c index 89a4058700c..c1155682dc6 100644 --- a/src/gallium/drivers/nv20/nv20_miptree.c +++ b/src/gallium/drivers/nv20/nv20_miptree.c @@ -79,6 +79,8 @@ nv20_miptree_create(struct pipe_screen *screen, const struct pipe_texture *pt) { struct pipe_winsys *ws = screen->winsys; struct nv20_miptree *mt; + unsigned buf_usage = PIPE_BUFFER_USAGE_PIXEL | + NOUVEAU_BUFFER_USAGE_TEXTURE; mt = MALLOC(sizeof(struct nv20_miptree)); if (!mt) @@ -87,10 +89,35 @@ nv20_miptree_create(struct pipe_screen *screen, const struct pipe_texture *pt) mt->base.refcount = 1; mt->base.screen = screen; + /* Swizzled textures must be POT */ + if (pt->width[0] & (pt->width[0] - 1) || + pt->height[0] & (pt->height[0] - 1)) + mt->base.tex_usage |= NOUVEAU_TEXTURE_USAGE_LINEAR; + else + if (pt->tex_usage & (PIPE_TEXTURE_USAGE_PRIMARY | + PIPE_TEXTURE_USAGE_DISPLAY_TARGET)) + mt->base.tex_usage |= NOUVEAU_TEXTURE_USAGE_LINEAR; + else + if (pt->tex_usage & PIPE_TEXTURE_USAGE_DYNAMIC) + mt->base.tex_usage |= NOUVEAU_TEXTURE_USAGE_LINEAR; + else { + switch (pt->format) { + /* TODO: Figure out which formats can be swizzled */ + case PIPE_FORMAT_A8R8G8B8_UNORM: + case PIPE_FORMAT_X8R8G8B8_UNORM: + case PIPE_FORMAT_R16_SNORM: + break; + default: + mt->base.tex_usage |= NOUVEAU_TEXTURE_USAGE_LINEAR; + } + } + + if (pt->tex_usage & PIPE_TEXTURE_USAGE_DYNAMIC) + buf_usage |= PIPE_BUFFER_USAGE_CPU_READ_WRITE; + nv20_miptree_layout(mt); - mt->buffer = ws->buffer_create(ws, 256, PIPE_BUFFER_USAGE_PIXEL, - mt->total_size); + mt->buffer = ws->buffer_create(ws, 256, buf_usage, mt->total_size); if (!mt->buffer) { FREE(mt); return NULL; |