u_transfer.h revision 848b8605 
1
2#ifndef U_TRANSFER_H
3#define U_TRANSFER_H
4
5/* Fallback implementations for inline read/writes which just go back
6 * to the regular transfer behaviour.
7 */
8#include "pipe/p_state.h"
9
10struct pipe_context;
11struct winsys_handle;
12
13boolean u_default_resource_get_handle(struct pipe_screen *screen,
14                                      struct pipe_resource *resource,
15                                      struct winsys_handle *handle);
16
17void u_default_transfer_inline_write( struct pipe_context *pipe,
18                                      struct pipe_resource *resource,
19                                      unsigned level,
20                                      unsigned usage,
21                                      const struct pipe_box *box,
22                                      const void *data,
23                                      unsigned stride,
24                                      unsigned layer_stride);
25
26void u_default_transfer_flush_region( struct pipe_context *pipe,
27                                      struct pipe_transfer *transfer,
28                                      const struct pipe_box *box);
29
30void u_default_transfer_unmap( struct pipe_context *pipe,
31                               struct pipe_transfer *transfer );
32
33
34
35/* Useful helper to allow >1 implementation of resource functionality
36 * to exist in a single driver.  This is intended to be transitionary!
37 */
38struct u_resource_vtbl {
39
40   boolean (*resource_get_handle)(struct pipe_screen *,
41                                  struct pipe_resource *tex,
42                                  struct winsys_handle *handle);
43
44   void (*resource_destroy)(struct pipe_screen *,
45                            struct pipe_resource *pt);
46
47   void *(*transfer_map)(struct pipe_context *,
48                         struct pipe_resource *resource,
49                         unsigned level,
50                         unsigned usage,
51                         const struct pipe_box *,
52                         struct pipe_transfer **);
53
54
55   void (*transfer_flush_region)( struct pipe_context *,
56                                  struct pipe_transfer *transfer,
57                                  const struct pipe_box *);
58
59   void (*transfer_unmap)( struct pipe_context *,
60                           struct pipe_transfer *transfer );
61
62   void (*transfer_inline_write)( struct pipe_context *pipe,
63                                  struct pipe_resource *resource,
64                                  unsigned level,
65                                  unsigned usage,
66                                  const struct pipe_box *box,
67                                  const void *data,
68                                  unsigned stride,
69                                  unsigned layer_stride);
70};
71
72
73struct u_resource {
74   struct pipe_resource b;
75   const struct u_resource_vtbl *vtbl;
76};
77
78
79boolean u_resource_get_handle_vtbl(struct pipe_screen *screen,
80                                   struct pipe_resource *resource,
81                                   struct winsys_handle *handle);
82
83void u_resource_destroy_vtbl(struct pipe_screen *screen,
84                             struct pipe_resource *resource);
85
86void *u_transfer_map_vtbl(struct pipe_context *context,
87                          struct pipe_resource *resource,
88                          unsigned level,
89                          unsigned usage,
90                          const struct pipe_box *box,
91                          struct pipe_transfer **transfer);
92
93void u_transfer_flush_region_vtbl( struct pipe_context *pipe,
94                                   struct pipe_transfer *transfer,
95                                   const struct pipe_box *box);
96
97void u_transfer_unmap_vtbl( struct pipe_context *rm_ctx,
98                            struct pipe_transfer *transfer );
99
100void u_transfer_inline_write_vtbl( struct pipe_context *rm_ctx,
101                                   struct pipe_resource *resource,
102                                   unsigned level,
103                                   unsigned usage,
104                                   const struct pipe_box *box,
105                                   const void *data,
106                                   unsigned stride,
107                                   unsigned layer_stride);
108
109#endif
110