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      1 /**************************************************************************
      2  *
      3  * Copyright 2009, VMware, Inc.
      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 VMWARE 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 DRI_DRAWABLE_H
     29 #define DRI_DRAWABLE_H
     30 
     31 #include "pipe/p_compiler.h"
     32 #include "pipe/p_format.h"
     33 #include "state_tracker/st_api.h"
     34 
     35 struct pipe_surface;
     36 struct st_framebuffer;
     37 struct dri_context;
     38 
     39 #define DRI_SWAP_FENCES_MAX 4
     40 #define DRI_SWAP_FENCES_MASK 3
     41 #define DRI_SWAP_FENCES_DEFAULT 1
     42 
     43 struct dri_drawable
     44 {
     45    struct st_framebuffer_iface base;
     46    struct st_visual stvis;
     47 
     48    struct dri_screen *screen;
     49 
     50    /* dri */
     51    __DRIdrawable *dPriv;
     52    __DRIscreen *sPriv;
     53 
     54    __DRIbuffer old[8];
     55    unsigned old_num;
     56    unsigned old_w;
     57    unsigned old_h;
     58 
     59    struct pipe_resource *textures[ST_ATTACHMENT_COUNT];
     60    unsigned int texture_mask, texture_stamp;
     61 
     62    struct pipe_fence_handle *swap_fences[DRI_SWAP_FENCES_MAX];
     63    unsigned int cur_fences;
     64    unsigned int head;
     65    unsigned int tail;
     66    unsigned int desired_fences;
     67 
     68    /* used only by DRISW */
     69    struct pipe_surface *drisw_surface;
     70 
     71    /* hooks filled in by dri2 & drisw */
     72    void (*allocate_textures)(struct dri_drawable *drawable,
     73                              const enum st_attachment_type *statts,
     74                              unsigned count);
     75 
     76    void (*update_drawable_info)(struct dri_drawable *drawable);
     77 
     78    void (*flush_frontbuffer)(struct dri_drawable *drawable,
     79                              enum st_attachment_type statt);
     80 
     81    void (*update_tex_buffer)(struct dri_drawable *drawable,
     82                              struct dri_context *ctx,
     83                              struct pipe_resource *res);
     84 };
     85 
     86 static INLINE struct dri_drawable *
     87 dri_drawable(__DRIdrawable * driDrawPriv)
     88 {
     89    return (struct dri_drawable *) (driDrawPriv)
     90       ? driDrawPriv->driverPrivate : NULL;
     91 }
     92 
     93 /***********************************************************************
     94  * dri_drawable.c
     95  */
     96 boolean
     97 dri_create_buffer(__DRIscreen * sPriv,
     98 		  __DRIdrawable * dPriv,
     99 		  const struct gl_config * visual, boolean isPixmap);
    100 
    101 void dri_destroy_buffer(__DRIdrawable * dPriv);
    102 
    103 void
    104 dri_drawable_get_format(struct dri_drawable *drawable,
    105                         enum st_attachment_type statt,
    106                         enum pipe_format *format,
    107                         unsigned *bind);
    108 
    109 extern const __DRItexBufferExtension driTexBufferExtension;
    110 extern const __DRI2throttleExtension dri2ThrottleExtension;
    111 #endif
    112 
    113 /* vim: set sw=3 ts=8 sts=3 expandtab: */
    114