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
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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
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  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    /* on old libGL's invalidate doesn't get called as it should */
  54    boolean broken_invalidate;
  55
  56    /* dri */
  57    __DRIscreen *sPriv;
  58
  59    /**
  60     * Configuration cache with default values for all contexts
  61     */
  62    driOptionCache optionCache;
  63
  64    /* drm */
  65    int fd;
  66    drmLock *drmLock;
  67
  68    /* hooks filled in by dri1, dri2 & drisw */
  69    __DRIimage * (*lookup_egl_image)(struct dri_context *ctx, void *handle);
  70    void (*allocate_textures)(struct dri_drawable *drawable,
  71                              const enum st_attachment_type *statts,
  72                              unsigned count);
  73    void (*update_drawable_info)(struct dri_drawable *drawable);
  74    void (*flush_frontbuffer)(struct dri_drawable *drawable,
  75                              enum st_attachment_type statt);
  76
  77    /* gallium */
  78    struct drm_api *api;
  79    boolean d_depth_bits_last;
  80    boolean sd_depth_bits_last;
  81    boolean auto_fake_front;
  82
  83    /* used only by DRI1 */
  84    struct pipe_context *dri1_pipe;
  85 };
  86
  87 /** cast wrapper */
  88 static INLINE struct dri_screen *
  89 dri_screen(__DRIscreen * sPriv)
  90 {
  91    return (struct dri_screen *)sPriv->private;
  92 }
  93
  94 struct __DRIimageRec {
  95    struct pipe_resource *texture;
  96    unsigned face;
  97    unsigned level;
  98    unsigned zslice;
  99
 100    void *loader_private;
 101 };
 102
 103 #ifndef __NOT_HAVE_DRM_H
 104
 105 static INLINE boolean
 106 dri_with_format(__DRIscreen * sPriv)
 107 {
 108    const __DRIdri2LoaderExtension *loader = sPriv->dri2.loader;
 109
 110    return loader
 111        && (loader->base.version >= 3)
 112        && (loader->getBuffersWithFormat != NULL);
 113 }
 114
 115 #else
 116
 117 static INLINE boolean
 118 dri_with_format(__DRIscreen * sPriv)
 119 {
 120    return TRUE;
 121 }
 122
 123 #endif
 124
 125 void
 126 dri_fill_st_visual(struct st_visual *stvis, struct dri_screen *screen,
 127                    const __GLcontextModes *mode);
 128
 129 const __DRIconfig **
 130 dri_init_screen_helper(struct dri_screen *screen,
 131                        struct pipe_screen *pscreen,
 132                        unsigned pixel_bits);
 133
 134 void
 135 dri_destroy_screen_helper(struct dri_screen * screen);
 136
 137 #endif
 138
 139 /* vim: set sw=3 ts=8 sts=3 expandtab: */