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      1 
      2 #include "pipe/p_context.h"
      3 #include "util/u_inlines.h"
      4 #include "util/u_format.h"
      5 
      6 #include "nouveau_screen.h"
      7 
      8 #include "nv50/nv50_resource.h"
      9 
     10 static struct pipe_resource *
     11 nv50_resource_create(struct pipe_screen *screen,
     12                      const struct pipe_resource *templ)
     13 {
     14    switch (templ->target) {
     15    case PIPE_BUFFER:
     16       return nouveau_buffer_create(screen, templ);
     17    default:
     18       return nv50_miptree_create(screen, templ);
     19    }
     20 }
     21 
     22 static struct pipe_resource *
     23 nv50_resource_from_handle(struct pipe_screen * screen,
     24                           const struct pipe_resource *templ,
     25                           struct winsys_handle *whandle,
     26                           unsigned usage)
     27 {
     28    if (templ->target == PIPE_BUFFER)
     29       return NULL;
     30    else
     31       return nv50_miptree_from_handle(screen, templ, whandle);
     32 }
     33 
     34 struct pipe_surface *
     35 nv50_surface_from_buffer(struct pipe_context *pipe,
     36                          struct pipe_resource *pbuf,
     37                          const struct pipe_surface *templ)
     38 {
     39    struct nv50_surface *sf = CALLOC_STRUCT(nv50_surface);
     40    if (!sf)
     41       return NULL;
     42 
     43    pipe_reference_init(&sf->base.reference, 1);
     44    pipe_resource_reference(&sf->base.texture, pbuf);
     45 
     46    sf->base.format = templ->format;
     47    sf->base.writable = templ->writable;
     48    sf->base.u.buf.first_element = templ->u.buf.first_element;
     49    sf->base.u.buf.last_element = templ->u.buf.last_element;
     50 
     51    sf->offset =
     52       templ->u.buf.first_element * util_format_get_blocksize(sf->base.format);
     53 
     54    sf->offset &= ~0x7f; /* FIXME: RT_ADDRESS requires 128 byte alignment */
     55 
     56    sf->width = templ->u.buf.last_element - templ->u.buf.first_element + 1;
     57    sf->height = 1;
     58    sf->depth = 1;
     59 
     60    sf->base.width = sf->width;
     61    sf->base.height = sf->height;
     62 
     63    sf->base.context = pipe;
     64    return &sf->base;
     65 }
     66 
     67 static struct pipe_surface *
     68 nv50_surface_create(struct pipe_context *pipe,
     69                     struct pipe_resource *pres,
     70                     const struct pipe_surface *templ)
     71 {
     72    if (unlikely(pres->target == PIPE_BUFFER))
     73       return nv50_surface_from_buffer(pipe, pres, templ);
     74    return nv50_miptree_surface_new(pipe, pres, templ);
     75 }
     76 
     77 void
     78 nv50_surface_destroy(struct pipe_context *pipe, struct pipe_surface *ps)
     79 {
     80    struct nv50_surface *s = nv50_surface(ps);
     81 
     82    pipe_resource_reference(&ps->texture, NULL);
     83 
     84    FREE(s);
     85 }
     86 
     87 void
     88 nv50_invalidate_resource(struct pipe_context *pipe, struct pipe_resource *res)
     89 {
     90    if (res->target == PIPE_BUFFER)
     91       nouveau_buffer_invalidate(pipe, res);
     92 }
     93 
     94 void
     95 nv50_init_resource_functions(struct pipe_context *pcontext)
     96 {
     97    pcontext->transfer_map = u_transfer_map_vtbl;
     98    pcontext->transfer_flush_region = u_transfer_flush_region_vtbl;
     99    pcontext->transfer_unmap = u_transfer_unmap_vtbl;
    100    pcontext->buffer_subdata = u_default_buffer_subdata;
    101    pcontext->texture_subdata = u_default_texture_subdata;
    102    pcontext->create_surface = nv50_surface_create;
    103    pcontext->surface_destroy = nv50_surface_destroy;
    104    pcontext->invalidate_resource = nv50_invalidate_resource;
    105 }
    106 
    107 void
    108 nv50_screen_init_resource_functions(struct pipe_screen *pscreen)
    109 {
    110    pscreen->resource_create = nv50_resource_create;
    111    pscreen->resource_from_handle = nv50_resource_from_handle;
    112    pscreen->resource_get_handle = u_resource_get_handle_vtbl;
    113    pscreen->resource_destroy = u_resource_destroy_vtbl;
    114 }
    115