src/gallium/auxiliary/sct/sct.h

   1 /**************************************************************************
   2  *
   3  * Copyright 2008 Tungsten Graphics, Inc., Cedar Park, Texas.
   4  * All Rights Reserved.
   5  *
   6  * Permission is hereby granted, free of charge, to any person obtaining a
   7  * copy of this software and associated documentation files (the
   8  * "Software"), to deal in the Software without restriction, including
   9  * without limitation the rights to use, copy, modify, merge, publish,
  10  * distribute, sub license, and/or sell copies of the Software, and to
  11  * permit persons to whom the Software is furnished to do so, subject to
  12  * the following conditions:
  13  *
  14  * The above copyright notice and this permission notice (including the
  15  * next paragraph) shall be included in all copies or substantial portions
  16  * of the Software.
  17  *
  18  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
  19  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  20  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
  21  * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
  22  * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
  23  * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
  24  * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  25  *
  26  **************************************************************************/
  27
  28 /**
  29  * Surface/Context Tracking
  30  *
  31  * For some drivers, we need to monitor the binding between contexts and
  32  * surfaces/textures.
  33  * This code may evolve quite a bit...
  34  */
  35
  36
  37 #ifndef SCT_H
  38 #define SCT_H
  39
  40
  41 #ifdef  __cplusplus
  42 extern "C" {
  43 #endif
  44
  45
  46 struct pipe_context;
  47 struct pipe_surface;
  48
  49 struct sct_context;
  50 struct sct_surface;
  51
  52
  53 /**
  54  * Per-device info, basically
  55  */
  56 struct surface_context_tracker
  57 {
  58    struct sct_context *contexts;
  59    struct sct_surface *surfaces;
  60 };
  61
  62
  63
  64 /**
  65  * Simple linked list of contexts
  66  */
  67 struct sct_context_list
  68 {
  69    const struct pipe_context *context;
  70    struct sct_context_list *next;
  71 };
  72
  73
  74
  75 extern void
  76 sct_bind_surfaces(struct surface_context_tracker *sct,
  77                   struct pipe_context *context,
  78                   uint num_surf,
  79                   struct pipe_surface **surfaces);
  80
  81
  82 extern void
  83 sct_bind_texture(struct surface_context_tracker *sct,
  84                  struct pipe_context *context,
  85                  uint unit,
  86                  struct pipe_texture *texture);
  87
  88
  89 extern void
  90 sct_update_texture(struct pipe_texture *tex);
  91
  92
  93 extern boolean
  94 sct_is_texture_used(struct surface_context_tracker *sct,
  95                     const struct pipe_context *context,
  96                     const struct pipe_texture *texture);
  97
  98 extern void
  99 sct_flush_textures(struct surface_context_tracker *sct,
 100                    struct pipe_context *context);
 101
 102
 103 extern const struct sct_context_list *
 104 sct_get_surface_contexts(struct surface_context_tracker *sct,
 105                          const struct pipe_surface *surf);
 106
 107
 108 extern void
 109 sct_destroy_context(struct surface_context_tracker *sct,
 110                     struct pipe_context *context);
 111
 112
 113 extern void
 114 sct_destroy_surface(struct surface_context_tracker *sct,
 115                     struct pipe_surface *surface);
 116
 117
 118
 119 #ifdef  __cplusplus
 120 }
 121 #endif
 122
 123 #endif /* SCT_H */