1
2#include "pipe/p_context.h"
3#include "util/u_inlines.h"
4#include "util/format/u_format.h"
5
6#include "nouveau_screen.h"
7
8#include "nv50/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 void
23nv50_resource_destroy(struct pipe_screen *pscreen, struct pipe_resource *res)
24{
25   if (res->target == PIPE_BUFFER)
26      nouveau_buffer_destroy(pscreen, res);
27   else
28      nv50_miptree_destroy(pscreen, res);
29}
30
31static struct pipe_resource *
32nv50_resource_from_handle(struct pipe_screen * screen,
33                          const struct pipe_resource *templ,
34                          struct winsys_handle *whandle,
35                          unsigned usage)
36{
37   if (templ->target == PIPE_BUFFER)
38      return NULL;
39   else
40      return nv50_miptree_from_handle(screen, templ, whandle);
41}
42
43struct pipe_surface *
44nv50_surface_from_buffer(struct pipe_context *pipe,
45                         struct pipe_resource *pbuf,
46                         const struct pipe_surface *templ)
47{
48   struct nv50_surface *sf = CALLOC_STRUCT(nv50_surface);
49   if (!sf)
50      return NULL;
51
52   pipe_reference_init(&sf->base.reference, 1);
53   pipe_resource_reference(&sf->base.texture, pbuf);
54
55   sf->base.format = templ->format;
56   sf->base.writable = templ->writable;
57   sf->base.u.buf.first_element = templ->u.buf.first_element;
58   sf->base.u.buf.last_element = templ->u.buf.last_element;
59
60   sf->offset =
61      templ->u.buf.first_element * util_format_get_blocksize(sf->base.format);
62
63   sf->offset &= ~0x7f; /* FIXME: RT_ADDRESS requires 128 byte alignment */
64
65   sf->width = templ->u.buf.last_element - templ->u.buf.first_element + 1;
66   sf->height = 1;
67   sf->depth = 1;
68
69   sf->base.width = sf->width;
70   sf->base.height = sf->height;
71
72   sf->base.context = pipe;
73   return &sf->base;
74}
75
76static struct pipe_surface *
77nv50_surface_create(struct pipe_context *pipe,
78                    struct pipe_resource *pres,
79                    const struct pipe_surface *templ)
80{
81   if (unlikely(pres->target == PIPE_BUFFER))
82      return nv50_surface_from_buffer(pipe, pres, templ);
83   return nv50_miptree_surface_new(pipe, pres, templ);
84}
85
86void
87nv50_surface_destroy(struct pipe_context *pipe, struct pipe_surface *ps)
88{
89   struct nv50_surface *s = nv50_surface(ps);
90
91   pipe_resource_reference(&ps->texture, NULL);
92
93   FREE(s);
94}
95
96void
97nv50_invalidate_resource(struct pipe_context *pipe, struct pipe_resource *res)
98{
99   if (res->target == PIPE_BUFFER)
100      nouveau_buffer_invalidate(pipe, res);
101}
102
103void
104nv50_init_resource_functions(struct pipe_context *pcontext)
105{
106   pcontext->buffer_map = nouveau_buffer_transfer_map;
107   pcontext->texture_map = nv50_miptree_transfer_map;
108   pcontext->transfer_flush_region = nouveau_buffer_transfer_flush_region;
109   pcontext->buffer_unmap = nouveau_buffer_transfer_unmap;
110   pcontext->texture_unmap = nv50_miptree_transfer_unmap;
111   pcontext->buffer_subdata = u_default_buffer_subdata;
112   pcontext->texture_subdata = u_default_texture_subdata;
113   pcontext->create_surface = nv50_surface_create;
114   pcontext->surface_destroy = nv50_surface_destroy;
115   pcontext->invalidate_resource = nv50_invalidate_resource;
116}
117
118void
119nv50_screen_init_resource_functions(struct pipe_screen *pscreen)
120{
121   pscreen->resource_create = nv50_resource_create;
122   pscreen->resource_from_handle = nv50_resource_from_handle;
123   pscreen->resource_get_handle = nv50_miptree_get_handle;
124   pscreen->resource_destroy = nv50_resource_destroy;
125}
126