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