src/mesa/drivers/dri/i965/intel_regions.h

   1 /**************************************************************************
   2  *
   3  * Copyright 2006 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 #ifndef INTEL_REGIONS_H
  29 #define INTEL_REGIONS_H
  30
  31 #include "mtypes.h"
  32 #include "dri_bufmgr.h"         /* for DBG! */
  33 #include "intel_screen.h"
  34 struct intel_context;
  35
  36 /* A layer on top of the bufmgr buffers that adds a few useful things:
  37  *
  38  * - Refcounting for local buffer references.
  39  * - Refcounting for buffer maps
  40  * - Buffer dimensions - pitch and height.
  41  * - Blitter commands for copying 2D regions between buffers.
  42  */
  43 struct intel_region {
  44    dri_bo *buffer;
  45    GLuint refcount;
  46    GLuint cpp;
  47    GLuint pitch;
  48    GLuint height;
  49    GLboolean tiled;
  50    GLubyte *map;
  51    GLuint map_refcount;
  52 };
  53
  54 /* Allocate a refcounted region.  Pointers to regions should only be
  55  * copied by calling intel_reference_region().
  56  *
  57  * No support for dynamically allocating tiled regions at this point.
  58  */
  59 struct intel_region *intel_region_alloc( struct intel_context *intel,
  60                                          GLuint cpp,
  61                                          GLuint pitch,
  62                                          GLuint height );
  63
  64 void intel_region_reference( struct intel_region **dst,
  65                              struct intel_region *src );
  66
  67 void intel_region_release(struct intel_context *intel,
  68                           struct intel_region **ib );
  69
  70 void intel_recreate_static_regions(struct intel_context *intel);
  71
  72 /* Static regions may be tiled.  The assumption is that the X server
  73  * has set up fence registers to define tiled zones in agp and these
  74  * buffers are within those zones.  Tiling regions without fence
  75  * registers is more work.
  76  */
  77 struct intel_region *
  78 intel_region_create_static(intelScreenPrivate *intelScreen,
  79                            char *name,
  80                            GLuint mem_type,
  81                            unsigned int bo_handle,
  82                            GLuint offset,
  83                            void *virtual,
  84                            GLuint cpp,
  85                            GLuint pitch, GLuint height, GLboolean tiled);
  86 void
  87 intel_region_update_static(intelScreenPrivate *intelScreen,
  88                            struct intel_region *region,
  89                            GLuint mem_type,
  90                            unsigned int bo_handle,
  91                            GLuint offset,
  92                            void *virtual,
  93                            GLuint cpp, GLuint pitch, GLuint height,
  94                            GLboolean tiled);
  95
  96 /* Map/unmap regions.  This is refcounted also:
  97  */
  98 GLubyte *intel_region_map(struct intel_context *intel,
  99                        struct intel_region *ib);
 100
 101 void intel_region_unmap(struct intel_context *intel,
 102                         struct intel_region *ib);
 103
 104
 105 /* Upload data to a rectangular sub-region
 106  */
 107 GLboolean intel_region_data(struct intel_context *intel,
 108                             struct intel_region *dest,
 109                             GLuint dest_offset,
 110                             GLuint destx, GLuint desty,
 111                             const void *src, GLuint src_stride,
 112                             GLuint srcx, GLuint srcy,
 113                             GLuint width, GLuint height);
 114
 115 /* Copy rectangular sub-regions
 116  */
 117 void intel_region_copy( struct intel_context *intel,
 118                         struct intel_region *dest,
 119                         GLuint dest_offset,
 120                         GLuint destx, GLuint desty,
 121                         struct intel_region *src,
 122                         GLuint src_offset,
 123                         GLuint srcx, GLuint srcy,
 124                         GLuint width, GLuint height );
 125
 126 /* Fill a rectangular sub-region
 127  */
 128 void intel_region_fill( struct intel_context *intel,
 129                         struct intel_region *dest,
 130                         GLuint dest_offset,
 131                         GLuint destx, GLuint desty,
 132                         GLuint width, GLuint height,
 133                         GLuint color );
 134
 135
 136 /***********************************************************************
 137  * Misc utilities: move to somewhere generic
 138  */
 139 void _mesa_copy_rect( GLubyte *dst,
 140                       GLuint cpp,
 141                       GLuint dst_pitch,
 142                       GLuint dst_x,
 143                       GLuint dst_y,
 144                       GLuint width,
 145                       GLuint height,
 146                       const GLubyte *src,
 147                       GLuint src_pitch,
 148                       GLuint src_x,
 149                       GLuint src_y );
 150
 151
 152 #endif