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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  * Author: Keith Whitwell <keithw (at) vmware.com>
     29  * Author: Jakob Bornecrantz <wallbraker (at) gmail.com>
     30  */
     31 
     32 #ifndef DRI_SCREEN_H
     33 #define DRI_SCREEN_H
     34 
     35 #include "dri_util.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 
     43 struct dri_context;
     44 struct dri_drawable;
     45 
     46 struct dri_screen
     47 {
     48    /* st_api */
     49    struct st_manager base;
     50    struct st_api *st_api;
     51 
     52    /* on old libGL's invalidate doesn't get called as it should */
     53    boolean broken_invalidate;
     54 
     55    /* dri */
     56    __DRIscreen *sPriv;
     57    int default_throttle_frames;
     58 
     59    /**
     60     * Configuration cache with default values for all contexts
     61     */
     62    driOptionCache optionCache;
     63 
     64    /* drm */
     65    int fd;
     66 
     67    /* gallium */
     68    boolean d_depth_bits_last;
     69    boolean sd_depth_bits_last;
     70    boolean auto_fake_front;
     71    enum pipe_texture_target target;
     72 
     73    /* hooks filled in by dri2 & drisw */
     74    __DRIimage * (*lookup_egl_image)(struct dri_screen *ctx, void *handle);
     75 };
     76 
     77 /** cast wrapper */
     78 static INLINE struct dri_screen *
     79 dri_screen(__DRIscreen * sPriv)
     80 {
     81    return (struct dri_screen *)sPriv->driverPrivate;
     82 }
     83 
     84 struct __DRIimageRec {
     85    struct pipe_resource *texture;
     86    unsigned level;
     87    unsigned layer;
     88    uint32_t dri_format;
     89    uint32_t dri_components;
     90 
     91    void *loader_private;
     92 };
     93 
     94 #ifndef __NOT_HAVE_DRM_H
     95 
     96 static INLINE boolean
     97 dri_with_format(__DRIscreen * sPriv)
     98 {
     99    const __DRIdri2LoaderExtension *loader = sPriv->dri2.loader;
    100 
    101    return loader
    102        && (loader->base.version >= 3)
    103        && (loader->getBuffersWithFormat != NULL);
    104 }
    105 
    106 #else
    107 
    108 static INLINE boolean
    109 dri_with_format(__DRIscreen * sPriv)
    110 {
    111    return TRUE;
    112 }
    113 
    114 #endif
    115 
    116 void
    117 dri_fill_st_visual(struct st_visual *stvis, struct dri_screen *screen,
    118                    const struct gl_config *mode);
    119 
    120 const __DRIconfig **
    121 dri_init_screen_helper(struct dri_screen *screen,
    122                        struct pipe_screen *pscreen,
    123                        unsigned pixel_bits);
    124 
    125 void
    126 dri_destroy_screen_helper(struct dri_screen * screen);
    127 
    128 void
    129 dri_destroy_screen(__DRIscreen * sPriv);
    130 
    131 #endif
    132 
    133 /* vim: set sw=3 ts=8 sts=3 expandtab: */
    134