src/gallium/drivers/r300/r300_winsys.h

   1 /*
   2  * Copyright 2008 Corbin Simpson <MostAwesomeDude@gmail.com>
   3  *
   4  * Permission is hereby granted, free of charge, to any person obtaining a
   5  * copy of this software and associated documentation files (the "Software"),
   6  * to deal in the Software without restriction, including without limitation
   7  * on the rights to use, copy, modify, merge, publish, distribute, sub
   8  * license, and/or sell copies of the Software, and to permit persons to whom
   9  * the Software is furnished to do so, subject to the following conditions:
  10  *
  11  * The above copyright notice and this permission notice (including the next
  12  * paragraph) shall be included in all copies or substantial portions of the
  13  * Software.
  14  *
  15  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  16  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  17  * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
  18  * THE AUTHOR(S) AND/OR THEIR SUPPLIERS BE LIABLE FOR ANY CLAIM,
  19  * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
  20  * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
  21  * USE OR OTHER DEALINGS IN THE SOFTWARE. */
  22
  23 #ifndef R300_WINSYS_H
  24 #define R300_WINSYS_H
  25
  26 #ifdef __cplusplus
  27 extern "C" {
  28 #endif
  29
  30 /* The public interface header for the r300 pipe driver.
  31  * Any winsys hosting this pipe needs to implement r300_winsys and then
  32  * call r300_create_context to start things. */
  33
  34 #include "pipe/p_defines.h"
  35 #include "pipe/p_state.h"
  36
  37 struct radeon_cs;
  38
  39 struct r300_winsys {
  40
  41     /* CS object. This is very much like Intel's batchbuffer.
  42      * Fill it full of dwords and relocs and then submit.
  43      * Repeat as needed. */
  44     /* Note: Unlike Mesa's version of this, we don't keep a copy of the CSM
  45      * that was used to create this CS. Is this a good idea? */
  46     /* Note: The pipe driver doesn't know how to use this. This is purely
  47      * for the winsys. */
  48     struct radeon_cs* cs;
  49
  50     /* Check to see if there's room for commands. */
  51     boolean (*check_cs)(struct radeon_cs* cs, int size);
  52
  53     /* Start a command emit. */
  54     void (*begin_cs)(struct radeon_cs* cs,
  55            int size,
  56            const char* file,
  57            const char* function,
  58            int line);
  59
  60     /* Write a dword to the command buffer. */
  61     /* XXX is this an okay name for this handle? */
  62     void (*write_cs_dword)(struct radeon_cs* cs, uint32_t dword);
  63
  64     /* Write a relocated dword to the command buffer. */
  65     void (*write_cs_reloc)(struct radeon_cs* cs,
  66            struct pipe_buffer* bo,
  67            uint32_t rd,
  68            uint32_t wd,
  69            uint32_t flags);
  70
  71     /* Finish a command emit. */
  72     void (*end_cs)(struct radeon_cs* cs,
  73            const char* file,
  74            const char* function,
  75            int line);
  76
  77 };
  78
  79 struct pipe_context* r300_create_context(struct pipe_screen* screen,
  80                                          struct pipe_winsys* winsys,
  81                                          struct r300_winsys* r300_winsys);
  82
  83 #ifdef __cplusplus
  84 }
  85 #endif
  86
  87 #endif /* R300_WINSYS_H */