src/gallium/drivers/r300/r300_transfer.h

   1 /*
   2  * Copyright 2008 Corbin Simpson <MostAwesomeDude@gmail.com>
   3  * Copyright 2010 Marek Olšák <maraeo@gmail.com>
   4  *
   5  * Permission is hereby granted, free of charge, to any person obtaining a
   6  * copy of this software and associated documentation files (the "Software"),
   7  * to deal in the Software without restriction, including without limitation
   8  * on the rights to use, copy, modify, merge, publish, distribute, sub
   9  * license, and/or sell copies of the Software, and to permit persons to whom
  10  * the Software is furnished to do so, subject to the following conditions:
  11  *
  12  * The above copyright notice and this permission notice (including the next
  13  * paragraph) shall be included in all copies or substantial portions of the
  14  * Software.
  15  *
  16  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  17  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  18  * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
  19  * THE AUTHOR(S) AND/OR THEIR SUPPLIERS BE LIABLE FOR ANY CLAIM,
  20  * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
  21  * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
  22  * USE OR OTHER DEALINGS IN THE SOFTWARE. */
  23
  24 #ifndef R300_TRANSFER
  25 #define R300_TRANSFER
  26
  27 #include "pipe/p_screen.h"
  28 #include "pipe/p_state.h"
  29
  30 struct r300_texture;
  31 struct r300_screen;
  32
  33 struct r300_transfer {
  34     /* Parent class */
  35     struct pipe_transfer transfer;
  36
  37     /* Parameters of get_tex_transfer. */
  38     unsigned x, y, level, zslice, face;
  39
  40     /* Offset from start of buffer. */
  41     unsigned offset;
  42
  43     /* Untiled texture. */
  44     struct r300_texture *untiled_texture;
  45
  46     /* Transfer and format flags. */
  47     unsigned buffer_usage, render_target_usage;
  48 };
  49
  50 /* Convenience cast wrapper. */
  51 static INLINE struct r300_transfer*
  52 r300_transfer(struct pipe_transfer* transfer)
  53 {
  54     return (struct r300_transfer*)transfer;
  55 }
  56
  57 void r300_init_screen_transfer_functions(struct pipe_screen *screen);
  58
  59 #endif
  60