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
 104 struct brw_texture
 105 {
 106    struct pipe_texture base;
 107    struct brw_winsys_buffer *bo;
 108    struct brw_surface_state ss;
 109
 110    unsigned *image_offset[PIPE_MAX_TEXTURE_LEVELS];
 111    unsigned nr_images[PIPE_MAX_TEXTURE_LEVELS];
 112    unsigned level_offset[PIPE_MAX_TEXTURE_LEVELS];
 113
 114    boolean compressed;
 115    unsigned brw_target;
 116    unsigned pitch;
 117    unsigned tiling;
 118    unsigned cpp;
 119    unsigned total_height;
 120
 121    struct brw_surface views[2];
 122 };
 123
 124
 125
 126 /*
 127  * Cast wrappers
 128  */
 129 static INLINE struct brw_screen *
 130 brw_screen(struct pipe_screen *pscreen)
 131 {
 132    return (struct brw_screen *) pscreen;
 133 }
 134
 135 static INLINE struct brw_transfer *
 136 brw_transfer(struct pipe_transfer *transfer)
 137 {
 138    return (struct brw_transfer *)transfer;
 139 }
 140
 141 static INLINE struct brw_surface *
 142 brw_surface(struct pipe_surface *surface)
 143 {
 144    return (struct brw_surface *)surface;
 145 }
 146
 147 static INLINE struct brw_buffer *
 148 brw_buffer(struct pipe_buffer *buffer)
 149 {
 150    return (struct brw_buffer *)buffer;
 151 }
 152
 153 static INLINE struct brw_texture *
 154 brw_texture(struct pipe_texture *texture)
 155 {
 156    return (struct brw_texture *)texture;
 157 }
 158
 159
 160 /* Pipe buffer helpers
 161  */
 162 static INLINE boolean
 163 brw_buffer_is_user_buffer( const struct pipe_buffer *buf )
 164 {
 165    return ((const struct brw_buffer *)buf)->user_buffer != NULL;
 166 }
 167
 168 unsigned
 169 brw_surface_pitch( const struct pipe_surface *surface );
 170
 171 /***********************************************************************
 172  * Internal functions
 173  */
 174 GLboolean brw_texture_layout(struct brw_screen *brw_screen,
 175                              struct brw_texture *tex );
 176
 177 void brw_update_texture( struct brw_screen *brw_screen,
 178                          struct brw_texture *tex );
 179
 180
 181 void brw_screen_tex_init( struct brw_screen *brw_screen );
 182 void brw_screen_tex_surface_init( struct brw_screen *brw_screen );
 183
 184 void brw_screen_buffer_init(struct brw_screen *brw_screen);
 185
 186
 187 boolean brw_is_texture_referenced_by_bo( struct brw_screen *brw_screen,
 188                                          struct pipe_texture *texture,
 189                                          unsigned face,
 190                                          unsigned level,
 191                                          struct brw_winsys_buffer *bo );
 192
 193 boolean brw_is_buffer_referenced_by_bo( struct brw_screen *brw_screen,
 194                                         struct pipe_buffer *buffer,
 195                                         struct brw_winsys_buffer *bo );
 196
 197
 198
 199 #endif /* BRW_SCREEN_H */