src/gallium/drivers/nouveau/nv50/nv50_resource.c

   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 }