src/gallium/drivers/vc4/vc4_bufmgr.h

   1 /*
   2  * Copyright © 2014 Broadcom
   3  *
   4  * Permission is hereby granted, free of charge, to any person obtaining a
   5  * copy of this software and associated documentation files (the "Software"),
   6  * to deal in the Software without restriction, including without limitation
   7  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
   8  * and/or sell copies of the Software, and to permit persons to whom the
   9  * Software is furnished to do so, subject to the following conditions:
  10  *
  11  * The above copyright notice and this permission notice (including the next
  12  * paragraph) shall be included in all copies or substantial portions of the
  13  * Software.
  14  *
  15  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  16  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  17  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  18  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  19  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
  20  * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
  21  * IN THE SOFTWARE.
  22  */
  23
  24 #ifndef VC4_BUFMGR_H
  25 #define VC4_BUFMGR_H
  26
  27 #include <stdint.h>
  28 #include "util/u_inlines.h"
  29
  30 struct vc4_context;
  31
  32 struct vc4_bo {
  33         struct pipe_reference reference;
  34         struct vc4_screen *screen;
  35         void *map;
  36         const char *name;
  37         uint32_t handle;
  38         uint32_t size;
  39
  40 #ifdef USE_VC4_SIMULATOR
  41         void *simulator_winsys_map;
  42         uint32_t simulator_winsys_stride;
  43 #endif
  44 };
  45
  46 struct vc4_bo *vc4_bo_alloc(struct vc4_screen *screen, uint32_t size,
  47                             const char *name);
  48 struct vc4_bo *vc4_bo_alloc_mem(struct vc4_screen *screen, const void *data,
  49                                 uint32_t size, const char *name);
  50 void vc4_bo_free(struct vc4_bo *bo);
  51 struct vc4_bo *vc4_bo_open_name(struct vc4_screen *screen, uint32_t name,
  52                                 uint32_t winsys_stride);
  53 bool vc4_bo_flink(struct vc4_bo *bo, uint32_t *name);
  54
  55 static inline void
  56 vc4_bo_set_reference(struct vc4_bo **old_bo, struct vc4_bo *new_bo)
  57 {
  58         if (pipe_reference(&(*old_bo)->reference, &new_bo->reference))
  59                 vc4_bo_free(*old_bo);
  60         *old_bo = new_bo;
  61 }
  62
  63 static inline struct vc4_bo *
  64 vc4_bo_reference(struct vc4_bo *bo)
  65 {
  66         pipe_reference(NULL, &bo->reference);
  67         return bo;
  68 }
  69
  70 static inline void
  71 vc4_bo_unreference(struct vc4_bo **bo)
  72 {
  73         if (!*bo)
  74                 return;
  75
  76         if (pipe_reference(&(*bo)->reference, NULL))
  77                 vc4_bo_free(*bo);
  78         *bo = NULL;
  79 }
  80
  81
  82 void *
  83 vc4_bo_map(struct vc4_bo *bo);
  84
  85 #endif /* VC4_BUFMGR_H */
  86