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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/nouveau_screen.h"
  7.  
  8. #include "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. {
  27.    if (templ->target == PIPE_BUFFER)
  28.       return NULL;
  29.    else
  30.       return nv50_miptree_from_handle(screen, templ, whandle);
  31. }
  32.  
  33. struct pipe_surface *
  34. nv50_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.writable = templ->writable;
  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.  
  66. static struct pipe_surface *
  67. nv50_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.  
  76. void
  77. nv50_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.  
  86. void
  87. nv50_init_resource_functions(struct pipe_context *pcontext)
  88. {
  89.    pcontext->transfer_map = u_transfer_map_vtbl;
  90.    pcontext->transfer_flush_region = u_transfer_flush_region_vtbl;
  91.    pcontext->transfer_unmap = u_transfer_unmap_vtbl;
  92.    pcontext->transfer_inline_write = u_transfer_inline_write_vtbl;
  93.    pcontext->create_surface = nv50_surface_create;
  94.    pcontext->surface_destroy = nv50_surface_destroy;
  95. }
  96.  
  97. void
  98. nv50_screen_init_resource_functions(struct pipe_screen *pscreen)
  99. {
  100.    pscreen->resource_create = nv50_resource_create;
  101.    pscreen->resource_from_handle = nv50_resource_from_handle;
  102.    pscreen->resource_get_handle = u_resource_get_handle_vtbl;
  103.    pscreen->resource_destroy = u_resource_destroy_vtbl;
  104. }
  105.