1
2#include "pipe/p_context.h"
3#include "util/u_inlines.h"
4#include "util/u_format.h"
5
6#include "nouveau/nouveau_screen.h"
7
8#include "nv50_resource.h"
9
10static struct pipe_resource *
11nv50_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
22static struct pipe_resource *
23nv50_resource_from_handle(struct pipe_screen * screen,
24                          const struct pipe_resource *templ,
25                          struct winsys_handle *whandle)
26{
27   if (templ->target == PIPE_BUFFER)
28      return NULL;
29   else
30      return nv50_miptree_from_handle(screen, templ, whandle);
31}
32
33struct pipe_surface *
34nv50_surface_from_buffer(struct pipe_context *pipe,
35			 struct pipe_resource *pbuf,
36			 const struct pipe_surface *templ)
37{
38   struct nv50_surface *sf = CALLOC_STRUCT(nv50_surface);
39   if (!sf)
40      return NULL;
41
42   pipe_reference_init(&sf->base.reference, 1);
43   pipe_resource_reference(&sf->base.texture, pbuf);
44
45   sf->base.format = templ->format;
46   sf->base.usage = templ->usage;
47   sf->base.u.buf.first_element = templ->u.buf.first_element;
48   sf->base.u.buf.last_element = templ->u.buf.last_element;
49
50   sf->offset =
51      templ->u.buf.first_element * util_format_get_blocksize(sf->base.format);
52
53   sf->offset &= ~0x7f; /* FIXME: RT_ADDRESS requires 128 byte alignment */
54
55   sf->width = templ->u.buf.last_element - templ->u.buf.first_element + 1;
56   sf->height = 1;
57   sf->depth = 1;
58
59   sf->base.width = sf->width;
60   sf->base.height = sf->height;
61
62   sf->base.context = pipe;
63   return &sf->base;
64}
65
66static struct pipe_surface *
67nv50_surface_create(struct pipe_context *pipe,
68		    struct pipe_resource *pres,
69		    const struct pipe_surface *templ)
70{
71   if (unlikely(pres->target == PIPE_BUFFER))
72      return nv50_surface_from_buffer(pipe, pres, templ);
73   return nv50_miptree_surface_new(pipe, pres, templ);
74}
75
76void
77nv50_surface_destroy(struct pipe_context *pipe, struct pipe_surface *ps)
78{
79   struct nv50_surface *s = nv50_surface(ps);
80
81   pipe_resource_reference(&ps->texture, NULL);
82
83   FREE(s);
84}
85
86void
87nv50_init_resource_functions(struct pipe_context *pcontext)
88{
89   pcontext->get_transfer = u_get_transfer_vtbl;
90   pcontext->transfer_map = u_transfer_map_vtbl;
91   pcontext->transfer_flush_region = u_transfer_flush_region_vtbl;
92   pcontext->transfer_unmap = u_transfer_unmap_vtbl;
93   pcontext->transfer_destroy = u_transfer_destroy_vtbl;
94   pcontext->transfer_inline_write = u_transfer_inline_write_vtbl;
95   pcontext->create_surface = nv50_surface_create;
96   pcontext->surface_destroy = nv50_surface_destroy;
97}
98
99void
100nv50_screen_init_resource_functions(struct pipe_screen *pscreen)
101{
102   pscreen->resource_create = nv50_resource_create;
103   pscreen->resource_from_handle = nv50_resource_from_handle;
104   pscreen->resource_get_handle = u_resource_get_handle_vtbl;
105   pscreen->resource_destroy = u_resource_destroy_vtbl;
106}
107