svga_resource.c revision af69d88d 
1/**********************************************************
2 * Copyright 2008-2012 VMware, Inc.  All rights reserved.
3 *
4 * Permission is hereby granted, free of charge, to any person
5 * obtaining a copy of this software and associated documentation
6 * files (the "Software"), to deal in the Software without
7 * restriction, including without limitation the rights to use, copy,
8 * modify, merge, publish, distribute, sublicense, and/or sell copies
9 * of the Software, and to permit persons to whom the Software is
10 * furnished to do so, subject to the following conditions:
11 *
12 * The above copyright notice and this permission notice shall be
13 * included in all copies or substantial portions of the Software.
14 *
15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
16 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
17 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
18 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
19 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
20 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
21 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
22 * SOFTWARE.
23 *
24 **********************************************************/
25
26#include "util/u_debug.h"
27
28#include "svga_resource.h"
29#include "svga_resource_buffer.h"
30#include "svga_resource_texture.h"
31#include "svga_context.h"
32#include "svga_screen.h"
33#include "svga_format.h"
34
35
36static struct pipe_resource *
37svga_resource_create(struct pipe_screen *screen,
38                     const struct pipe_resource *template)
39{
40   if (template->target == PIPE_BUFFER)
41      return svga_buffer_create(screen, template);
42   else
43      return svga_texture_create(screen, template);
44}
45
46
47static struct pipe_resource *
48svga_resource_from_handle(struct pipe_screen * screen,
49                          const struct pipe_resource *template,
50                          struct winsys_handle *whandle)
51{
52   if (template->target == PIPE_BUFFER)
53      return NULL;
54   else
55      return svga_texture_from_handle(screen, template, whandle);
56}
57
58
59/**
60 * Check if a resource (texture, buffer) of the given size
61 * and format can be created.
62 * \Return TRUE if OK, FALSE if too large.
63 */
64static boolean
65svga_can_create_resource(struct pipe_screen *screen,
66                         const struct pipe_resource *res)
67{
68   struct svga_screen *svgascreen = svga_screen(screen);
69   struct svga_winsys_screen *sws = svgascreen->sws;
70   SVGA3dSurfaceFormat format;
71   SVGA3dSize base_level_size;
72   uint32 numFaces;
73   uint32 numMipLevels;
74
75   if (res->target == PIPE_BUFFER) {
76      format = SVGA3D_BUFFER;
77      base_level_size.width = res->width0;
78      base_level_size.height = 1;
79      base_level_size.depth = 1;
80      numFaces = 1;
81      numMipLevels = 1;
82
83   } else {
84      format = svga_translate_format(svgascreen, res->format, res->bind);
85      if (format == SVGA3D_FORMAT_INVALID)
86         return FALSE;
87
88      base_level_size.width = res->width0;
89      base_level_size.height = res->height0;
90      base_level_size.depth = res->depth0;
91      numFaces = (res->target == PIPE_TEXTURE_CUBE) ? 6 : 1;
92      numMipLevels = res->last_level + 1;
93   }
94
95   return sws->surface_can_create(sws, format, base_level_size,
96                                  numFaces, numMipLevels);
97}
98
99
100void
101svga_init_resource_functions(struct svga_context *svga)
102{
103   svga->pipe.transfer_map = u_transfer_map_vtbl;
104   svga->pipe.transfer_flush_region = u_transfer_flush_region_vtbl;
105   svga->pipe.transfer_unmap = u_transfer_unmap_vtbl;
106   svga->pipe.transfer_inline_write = u_transfer_inline_write_vtbl;
107}
108
109void
110svga_init_screen_resource_functions(struct svga_screen *is)
111{
112   is->screen.resource_create = svga_resource_create;
113   is->screen.resource_from_handle = svga_resource_from_handle;
114   is->screen.resource_get_handle = u_resource_get_handle_vtbl;
115   is->screen.resource_destroy = u_resource_destroy_vtbl;
116   is->screen.can_create_resource = svga_can_create_resource;
117}
118