src/gallium/auxiliary/util/u_transfer.h

   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
  10 struct pipe_context;
  11 struct winsys_handle;
  12
  13 #ifdef __cplusplus
  14 extern "C" {
  15 #endif
  16
  17 bool u_default_resource_get_handle(struct pipe_screen *screen,
  18                                    struct pipe_resource *resource,
  19                                    struct winsys_handle *handle);
  20
  21 void u_default_buffer_subdata(struct pipe_context *pipe,
  22                               struct pipe_resource *resource,
  23                               unsigned usage, unsigned offset,
  24                               unsigned size, const void *data);
  25
  26 void u_default_texture_subdata(struct pipe_context *pipe,
  27                                struct pipe_resource *resource,
  28                                unsigned level,
  29                                unsigned usage,
  30                                const struct pipe_box *box,
  31                                const void *data,
  32                                unsigned stride,
  33                                unsigned layer_stride);
  34
  35 void u_default_transfer_flush_region( struct pipe_context *pipe,
  36                                       struct pipe_transfer *transfer,
  37                                       const struct pipe_box *box);
  38
  39 void u_default_transfer_unmap( struct pipe_context *pipe,
  40                                struct pipe_transfer *transfer );
  41
  42
  43
  44 /* Useful helper to allow >1 implementation of resource functionality
  45  * to exist in a single driver.  This is intended to be transitionary!
  46  */
  47 struct u_resource_vtbl {
  48
  49    bool (*resource_get_handle)(struct pipe_screen *,
  50                                struct pipe_resource *tex,
  51                                struct winsys_handle *handle);
  52
  53    void (*resource_destroy)(struct pipe_screen *,
  54                             struct pipe_resource *pt);
  55
  56    void *(*transfer_map)(struct pipe_context *,
  57                          struct pipe_resource *resource,
  58                          unsigned level,
  59                          unsigned usage,
  60                          const struct pipe_box *,
  61                          struct pipe_transfer **);
  62
  63
  64    void (*transfer_flush_region)( struct pipe_context *,
  65                                   struct pipe_transfer *transfer,
  66                                   const struct pipe_box *);
  67
  68    void (*transfer_unmap)( struct pipe_context *,
  69                            struct pipe_transfer *transfer );
  70 };
  71
  72
  73 struct u_resource {
  74    struct pipe_resource b;
  75    const struct u_resource_vtbl *vtbl;
  76 };
  77
  78
  79 bool u_resource_get_handle_vtbl(struct pipe_screen *screen,
  80                                 struct pipe_context *ctx,
  81                                 struct pipe_resource *resource,
  82                                 struct winsys_handle *handle,
  83                                 unsigned usage);
  84
  85 void u_resource_destroy_vtbl(struct pipe_screen *screen,
  86                              struct pipe_resource *resource);
  87
  88 void *u_transfer_map_vtbl(struct pipe_context *context,
  89                           struct pipe_resource *resource,
  90                           unsigned level,
  91                           unsigned usage,
  92                           const struct pipe_box *box,
  93                           struct pipe_transfer **transfer);
  94
  95 void u_transfer_flush_region_vtbl( struct pipe_context *pipe,
  96                                    struct pipe_transfer *transfer,
  97                                    const struct pipe_box *box);
  98
  99 void u_transfer_unmap_vtbl( struct pipe_context *rm_ctx,
 100                             struct pipe_transfer *transfer );
 101
 102 #ifdef __cplusplus
 103 } // extern "C" {
 104 #endif
 105
 106 #endif