src/gallium/drivers/i965/brw_resource.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 #ifndef BRW_RESOURCE_H
  29 #define BRW_RESOURCE_H
  30
  31 struct brw_screen;
  32
  33 #include "util/u_transfer.h"
  34 #include "util/u_debug.h"
  35
  36 #include "brw_screen.h"         /* for brw_surface */
  37
  38 struct brw_context;
  39 struct brw_screen;
  40
  41
  42 struct brw_buffer {
  43    struct u_resource b;
  44
  45    /* One of either bo or user_buffer will be non-null, depending on
  46     * whether this is a hardware or user buffer.
  47     */
  48    struct brw_winsys_buffer *bo;
  49    void *user_buffer;
  50
  51    /* Mapped pointer??
  52     */
  53    void *ptr;
  54 };
  55
  56 #define BRW_MAX_TEXTURE_2D_LEVELS 11  /* max 1024x1024 */
  57 #define BRW_MAX_TEXTURE_3D_LEVELS  8  /* max 128x128x128 */
  58
  59
  60
  61 struct brw_texture {
  62    struct u_resource b;
  63    struct brw_winsys_buffer *bo;
  64    struct brw_surface_state ss;
  65
  66    unsigned *image_offset[BRW_MAX_TEXTURE_2D_LEVELS];
  67    unsigned nr_images[BRW_MAX_TEXTURE_2D_LEVELS];
  68    unsigned level_offset[BRW_MAX_TEXTURE_2D_LEVELS];
  69
  70    boolean compressed;
  71    unsigned brw_target;
  72    unsigned pitch;
  73    unsigned tiling;
  74    unsigned cpp;
  75    unsigned total_height;
  76
  77    struct brw_surface views[2];
  78 };
  79
  80
  81 void brw_init_screen_resource_functions(struct brw_screen *is);
  82 void brw_init_resource_functions(struct brw_context *brw );
  83
  84 extern struct u_resource_vtbl brw_buffer_vtbl;
  85 extern struct u_resource_vtbl brw_texture_vtbl;
  86
  87 static INLINE struct brw_texture *brw_texture( struct pipe_resource *resource )
  88 {
  89    struct brw_texture *tex = (struct brw_texture *)resource;
  90    assert(tex->b.vtbl == &brw_texture_vtbl);
  91    return tex;
  92 }
  93
  94 static INLINE struct brw_buffer *brw_buffer( struct pipe_resource *resource )
  95 {
  96    struct brw_buffer *tex = (struct brw_buffer *)resource;
  97    assert(tex->b.vtbl == &brw_buffer_vtbl);
  98    return tex;
  99 }
 100
 101 struct pipe_resource *
 102 brw_texture_create(struct pipe_screen *screen,
 103                     const struct pipe_resource *template);
 104
 105 struct pipe_resource *
 106 brw_texture_from_handle(struct pipe_screen * screen,
 107                         const struct pipe_resource *template,
 108                         struct winsys_handle *whandle);
 109
 110
 111 struct pipe_resource *
 112 brw_user_buffer_create(struct pipe_screen *screen,
 113                         void *ptr,
 114                         unsigned bytes,
 115                         unsigned usage);
 116
 117 struct pipe_resource *
 118 brw_buffer_create(struct pipe_screen *screen,
 119                    const struct pipe_resource *template);
 120
 121
 122 /*
 123 boolean
 124 brw_is_format_supported( struct pipe_screen *screen,
 125                          enum pipe_format format,
 126                          enum pipe_texture_target target,
 127                          unsigned tex_usage,
 128                          unsigned geom_flags );
 129 */
 130
 131 /* Pipe buffer helpers
 132  */
 133 static INLINE boolean
 134 brw_buffer_is_user_buffer( const struct pipe_resource *buf )
 135 {
 136    return ((const struct brw_buffer *)buf)->user_buffer != NULL;
 137 }
 138
 139
 140 /***********************************************************************
 141  * Internal functions
 142  */
 143 GLboolean brw_texture_layout(struct brw_screen *brw_screen,
 144                              struct brw_texture *tex );
 145
 146 void brw_update_texture( struct brw_screen *brw_screen,
 147                          struct brw_texture *tex );
 148
 149
 150
 151 #endif /* BRW_RESOURCE_H */