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 };
  49
  50 /**
  51  * Subclass of pipe_transfer
  52  */
  53 struct brw_transfer
  54 {
  55    struct pipe_transfer base;
  56
  57    unsigned offset;
  58 };
  59
  60 struct brw_buffer
  61 {
  62    struct pipe_buffer base;
  63
  64    /* One of either bo or user_buffer will be non-null, depending on
  65     * whether this is a hardware or user buffer.
  66     */
  67    struct brw_winsys_buffer *bo;
  68    void *user_buffer;
  69
  70    /* Mapped pointer??
  71     */
  72    void *ptr;
  73 };
  74
  75 #define BRW_TILING_NONE  0
  76 #define BRW_TILING_Y     1
  77 #define BRW_TILING_X     2
  78
  79 union brw_surface_id {
  80    struct {
  81       unsigned face:3;
  82       unsigned zslice:13;
  83       unsigned level:16;
  84    } bits;
  85    unsigned value;
  86 };
  87
  88
  89 struct brw_surface
  90 {
  91    struct pipe_surface base;
  92    union brw_surface_id id;
  93    struct brw_surface_state ss;
  94    struct brw_winsys_buffer *bo;
  95    struct brw_surface *next, *prev;
  96 };
  97
  98
  99
 100 struct brw_texture
 101 {
 102    struct pipe_texture base;
 103    struct brw_winsys_buffer *bo;
 104    struct brw_surface_state ss;
 105
 106    unsigned *image_offset[PIPE_MAX_TEXTURE_LEVELS];
 107    unsigned nr_images[PIPE_MAX_TEXTURE_LEVELS];
 108    unsigned level_offset[PIPE_MAX_TEXTURE_LEVELS];
 109
 110    boolean compressed;
 111    unsigned brw_target;
 112    unsigned pitch;
 113    unsigned tiling;
 114    unsigned cpp;
 115    unsigned total_height;
 116
 117    struct brw_surface views[2];
 118 };
 119
 120
 121
 122 /*
 123  * Cast wrappers
 124  */
 125 static INLINE struct brw_screen *
 126 brw_screen(struct pipe_screen *pscreen)
 127 {
 128    return (struct brw_screen *) pscreen;
 129 }
 130
 131 static INLINE struct brw_transfer *
 132 brw_transfer(struct pipe_transfer *transfer)
 133 {
 134    return (struct brw_transfer *)transfer;
 135 }
 136
 137 static INLINE struct brw_surface *
 138 brw_surface(struct pipe_surface *surface)
 139 {
 140    return (struct brw_surface *)surface;
 141 }
 142
 143 static INLINE struct brw_buffer *
 144 brw_buffer(struct pipe_buffer *buffer)
 145 {
 146    return (struct brw_buffer *)buffer;
 147 }
 148
 149 static INLINE struct brw_texture *
 150 brw_texture(struct pipe_texture *texture)
 151 {
 152    return (struct brw_texture *)texture;
 153 }
 154
 155
 156 /* Pipe buffer helpers
 157  */
 158 static INLINE boolean
 159 brw_buffer_is_user_buffer( const struct pipe_buffer *buf )
 160 {
 161    return ((const struct brw_buffer *)buf)->user_buffer != NULL;
 162 }
 163
 164 struct brw_winsys_buffer *
 165 brw_surface_bo( struct pipe_surface *surface );
 166
 167 unsigned
 168 brw_surface_pitch( const struct pipe_surface *surface );
 169
 170 /***********************************************************************
 171  * Internal functions
 172  */
 173 GLboolean brw_texture_layout(struct brw_screen *brw_screen,
 174                              struct brw_texture *tex );
 175
 176 void brw_update_texture( struct brw_screen *brw_screen,
 177                          struct brw_texture *tex );
 178
 179
 180 void brw_screen_tex_init( struct brw_screen *brw_screen );
 181 void brw_screen_tex_surface_init( struct brw_screen *brw_screen );
 182
 183 void brw_screen_buffer_init(struct brw_screen *brw_screen);
 184
 185
 186 #endif /* BRW_SCREEN_H */