src/gallium/drivers/i965/brw_screen.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_SCREEN_H
  29 #define BRW_SCREEN_H
  30
  31 #include "pipe/p_state.h"
  32 #include "pipe/p_screen.h"
  33
  34 #include "brw_reg.h"
  35 #include "brw_structs.h"
  36
  37 struct brw_winsys_screen;
  38
  39
  40 /**
  41  * Subclass of pipe_screen
  42  */
  43 struct brw_screen
  44 {
  45    struct pipe_screen base;
  46    struct brw_chipset chipset;
  47    struct brw_winsys_screen *sws;
  48    boolean no_tiling;
  49 };
  50
  51 /**
  52  * Subclass of pipe_transfer
  53  */
  54 struct brw_transfer
  55 {
  56    struct pipe_transfer base;
  57
  58    unsigned offset;
  59 };
  60
  61 struct brw_buffer
  62 {
  63    struct pipe_buffer base;
  64
  65    /* One of either bo or user_buffer will be non-null, depending on
  66     * whether this is a hardware or user buffer.
  67     */
  68    struct brw_winsys_buffer *bo;
  69    void *user_buffer;
  70
  71    /* Mapped pointer??
  72     */
  73    void *ptr;
  74 };
  75
  76
  77 union brw_surface_id {
  78    struct {
  79       unsigned face:3;
  80       unsigned zslice:13;
  81       unsigned level:16;
  82    } bits;
  83    unsigned value;
  84 };
  85
  86
  87 struct brw_surface
  88 {
  89    struct pipe_surface base;
  90
  91    union brw_surface_id id;
  92    unsigned cpp;
  93    unsigned pitch;
  94    unsigned draw_offset;
  95    unsigned tiling;
  96
  97    struct brw_surface_state ss;
  98    struct brw_winsys_buffer *bo;
  99    struct brw_surface *next, *prev;
 100 };
 101
 102
 103 #define BRW_MAX_TEXTURE_2D_LEVELS 11  /* max 1024x1024 */
 104 #define BRW_MAX_TEXTURE_3D_LEVELS  8  /* max 128x128x128 */
 105
 106
 107 struct brw_texture
 108 {
 109    struct pipe_texture base;
 110    struct brw_winsys_buffer *bo;
 111    struct brw_surface_state ss;
 112
 113    unsigned *image_offset[BRW_MAX_TEXTURE_2D_LEVELS];
 114    unsigned nr_images[BRW_MAX_TEXTURE_2D_LEVELS];
 115    unsigned level_offset[BRW_MAX_TEXTURE_2D_LEVELS];
 116
 117    boolean compressed;
 118    unsigned brw_target;
 119    unsigned pitch;
 120    unsigned tiling;
 121    unsigned cpp;
 122    unsigned total_height;
 123
 124    struct brw_surface views[2];
 125 };
 126
 127
 128
 129 /*
 130  * Cast wrappers
 131  */
 132 static INLINE struct brw_screen *
 133 brw_screen(struct pipe_screen *pscreen)
 134 {
 135    return (struct brw_screen *) pscreen;
 136 }
 137
 138 static INLINE struct brw_transfer *
 139 brw_transfer(struct pipe_transfer *transfer)
 140 {
 141    return (struct brw_transfer *)transfer;
 142 }
 143
 144 static INLINE struct brw_surface *
 145 brw_surface(struct pipe_surface *surface)
 146 {
 147    return (struct brw_surface *)surface;
 148 }
 149
 150 static INLINE struct brw_buffer *
 151 brw_buffer(struct pipe_buffer *buffer)
 152 {
 153    return (struct brw_buffer *)buffer;
 154 }
 155
 156 static INLINE struct brw_texture *
 157 brw_texture(struct pipe_texture *texture)
 158 {
 159    return (struct brw_texture *)texture;
 160 }
 161
 162
 163 /* Pipe buffer helpers
 164  */
 165 static INLINE boolean
 166 brw_buffer_is_user_buffer( const struct pipe_buffer *buf )
 167 {
 168    return ((const struct brw_buffer *)buf)->user_buffer != NULL;
 169 }
 170
 171 unsigned
 172 brw_surface_pitch( const struct pipe_surface *surface );
 173
 174 /***********************************************************************
 175  * Internal functions
 176  */
 177 GLboolean brw_texture_layout(struct brw_screen *brw_screen,
 178                              struct brw_texture *tex );
 179
 180 void brw_update_texture( struct brw_screen *brw_screen,
 181                          struct brw_texture *tex );
 182
 183
 184 /* brw_screen_texture.h
 185  */
 186 struct brw_context;
 187 void brw_tex_init( struct brw_context *brw );
 188 void brw_screen_tex_init( struct brw_screen *brw_screen );
 189 void brw_screen_tex_surface_init( struct brw_screen *brw_screen );
 190
 191 void brw_screen_buffer_init(struct brw_screen *brw_screen);
 192
 193
 194 boolean brw_is_texture_referenced_by_bo( struct brw_screen *brw_screen,
 195                                          struct pipe_texture *texture,
 196                                          unsigned face,
 197                                          unsigned level,
 198                                          struct brw_winsys_buffer *bo );
 199
 200 boolean brw_is_buffer_referenced_by_bo( struct brw_screen *brw_screen,
 201                                         struct pipe_buffer *buffer,
 202                                         struct brw_winsys_buffer *bo );
 203
 204
 205
 206 #endif /* BRW_SCREEN_H */