src/gallium/state_trackers/dri/common/dri_screen.h

   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
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  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
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  25  *
  26  **************************************************************************/
  27 /*
  28  * Author: Keith Whitwell <keithw@vmware.com>
  29  * Author: Jakob Bornecrantz <wallbraker@gmail.com>
  30  */
  31
  32 #ifndef DRI_SCREEN_H
  33 #define DRI_SCREEN_H
  34
  35 #include "dri_wrapper.h"
  36 #include "xmlconfig.h"
  37
  38 #include "pipe/p_compiler.h"
  39 #include "pipe/p_context.h"
  40 #include "pipe/p_state.h"
  41 #include "state_tracker/st_api.h"
  42 #include "state_tracker/drm_api.h"
  43
  44 struct dri_context;
  45 struct dri_drawable;
  46
  47 struct dri_screen
  48 {
  49    /* st_api */
  50    struct st_manager base;
  51    struct st_api *st_api;
  52
  53    /* dri */
  54    __DRIscreen *sPriv;
  55
  56    /**
  57     * Configuration cache with default values for all contexts
  58     */
  59    driOptionCache optionCache;
  60
  61    /* drm */
  62    int fd;
  63    drmLock *drmLock;
  64
  65    /* hooks filled in by dri1, dri2 & drisw */
  66    __DRIimage * (*lookup_egl_image)(struct dri_context *ctx, void *handle);
  67    void (*allocate_textures)(struct dri_drawable *drawable,
  68                              const enum st_attachment_type *statts,
  69                              unsigned count);
  70    void (*update_drawable_info)(struct dri_drawable *drawable);
  71    void (*flush_frontbuffer)(struct dri_drawable *drawable,
  72                              enum st_attachment_type statt);
  73
  74    /* gallium */
  75    struct drm_api *api;
  76    boolean d_depth_bits_last;
  77    boolean sd_depth_bits_last;
  78    boolean auto_fake_front;
  79
  80    /* used only by DRI1 */
  81    struct pipe_context *dri1_pipe;
  82 };
  83
  84 /** cast wrapper */
  85 static INLINE struct dri_screen *
  86 dri_screen(__DRIscreen * sPriv)
  87 {
  88    return (struct dri_screen *)sPriv->private;
  89 }
  90
  91 struct __DRIimageRec {
  92    struct pipe_resource *texture;
  93    unsigned face;
  94    unsigned level;
  95    unsigned zslice;
  96
  97    void *loader_private;
  98 };
  99
 100 #ifndef __NOT_HAVE_DRM_H
 101
 102 static INLINE boolean
 103 dri_with_format(__DRIscreen * sPriv)
 104 {
 105    const __DRIdri2LoaderExtension *loader = sPriv->dri2.loader;
 106
 107    return loader
 108        && (loader->base.version >= 3)
 109        && (loader->getBuffersWithFormat != NULL);
 110 }
 111
 112 #else
 113
 114 static INLINE boolean
 115 dri_with_format(__DRIscreen * sPriv)
 116 {
 117    return TRUE;
 118 }
 119
 120 #endif
 121
 122 void
 123 dri_fill_st_visual(struct st_visual *stvis, struct dri_screen *screen,
 124                    const __GLcontextModes *mode);
 125
 126 const __DRIconfig **
 127 dri_init_screen_helper(struct dri_screen *screen,
 128                        struct pipe_screen *pscreen,
 129                        unsigned pixel_bits);
 130
 131 void
 132 dri_destroy_screen_helper(struct dri_screen * screen);
 133
 134 #endif
 135
 136 /* vim: set sw=3 ts=8 sts=3 expandtab: */