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      1 /*
      2  * Mesa 3-D graphics library
      3  * Version:  7.8
      4  *
      5  * Copyright (C) 2009-2010 Chia-I Wu <olv (at) 0xlab.org>
      6  *
      7  * Permission is hereby granted, free of charge, to any person obtaining a
      8  * copy of this software and associated documentation files (the "Software"),
      9  * to deal in the Software without restriction, including without limitation
     10  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
     11  * and/or sell copies of the Software, and to permit persons to whom the
     12  * Software is furnished to do so, subject to the following conditions:
     13  *
     14  * The above copyright notice and this permission notice shall be included
     15  * in all copies or substantial portions of the Software.
     16  *
     17  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
     18  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
     19  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
     20  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
     21  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
     22  * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
     23  * DEALINGS IN THE SOFTWARE.
     24  */
     25 
     26 #ifndef _X11_SCREEN_H_
     27 #define _X11_SCREEN_H_
     28 
     29 #include <X11/Xlib.h>
     30 #include <X11/Xutil.h>
     31 #include <X11/extensions/dri2tokens.h>
     32 #include "GL/gl.h" /* for GL types needed by __GLcontextModes */
     33 #include "glcore.h"  /* for __GLcontextModes */
     34 #include "pipe/p_compiler.h"
     35 #include "common/native.h"
     36 
     37 enum x11_screen_extension {
     38    X11_SCREEN_EXTENSION_XSHM,
     39    X11_SCREEN_EXTENSION_GLX,
     40    X11_SCREEN_EXTENSION_DRI2,
     41 };
     42 
     43 /* the same as DRI2Buffer */
     44 struct x11_drawable_buffer {
     45    unsigned int attachment;
     46    unsigned int name;
     47    unsigned int pitch;
     48    unsigned int cpp;
     49    unsigned int flags;
     50 };
     51 
     52 struct x11_screen;
     53 
     54 typedef void (*x11_drawable_invalidate_buffers)(struct x11_screen *xscr,
     55                                                 Drawable drawable,
     56                                                 void *user_data);
     57 
     58 struct x11_screen *
     59 x11_screen_create(Display *dpy, int screen);
     60 
     61 void
     62 x11_screen_destroy(struct x11_screen *xscr);
     63 
     64 boolean
     65 x11_screen_support(struct x11_screen *xscr, enum x11_screen_extension ext);
     66 
     67 const XVisualInfo *
     68 x11_screen_get_visuals(struct x11_screen *xscr, int *num_visuals);
     69 
     70 uint
     71 x11_drawable_get_depth(struct x11_screen *xscr, Drawable drawable);
     72 
     73 #ifdef GLX_DIRECT_RENDERING
     74 
     75 /* GLX */
     76 const __GLcontextModes *
     77 x11_screen_get_glx_configs(struct x11_screen *xscr);
     78 
     79 const __GLcontextModes *
     80 x11_screen_get_glx_visuals(struct x11_screen *xscr);
     81 
     82 __GLcontextModes *
     83 x11_context_modes_create(unsigned count);
     84 
     85 void
     86 x11_context_modes_destroy(__GLcontextModes *modes);
     87 
     88 unsigned
     89 x11_context_modes_count(const __GLcontextModes *modes);
     90 
     91 /* DRI2 */
     92 const char *
     93 x11_screen_probe_dri2(struct x11_screen *xscr, int *major, int *minor);
     94 
     95 int
     96 x11_screen_enable_dri2(struct x11_screen *xscr,
     97                        x11_drawable_invalidate_buffers invalidate_buffers,
     98                        void *user_data);
     99 
    100 char *
    101 x11_screen_get_device_name(struct x11_screen *xscr);
    102 
    103 int
    104 x11_screen_authenticate(struct x11_screen *xscr, uint32_t id);
    105 
    106 void
    107 x11_drawable_enable_dri2(struct x11_screen *xscr,
    108                          Drawable drawable, boolean on);
    109 
    110 void
    111 x11_drawable_copy_buffers_region(struct x11_screen *xscr, Drawable drawable,
    112                                  int num_rects, const int *rects,
    113                                  int src_buf, int dst_buf);
    114 
    115 /**
    116  * Copy between buffers of the DRI2 drawable.
    117  */
    118 static INLINE void
    119 x11_drawable_copy_buffers(struct x11_screen *xscr, Drawable drawable,
    120                           int x, int y, int width, int height,
    121                           int src_buf, int dst_buf)
    122 {
    123     int rect[4] = { x, y, width, height };
    124     x11_drawable_copy_buffers_region(xscr, drawable, 1, rect, src_buf, dst_buf);
    125 }
    126 
    127 struct x11_drawable_buffer *
    128 x11_drawable_get_buffers(struct x11_screen *xscr, Drawable drawable,
    129                          int *width, int *height, unsigned int *attachments,
    130                          boolean with_format, int num_ins, int *num_outs);
    131 
    132 #endif /* GLX_DIRECT_RENDERING */
    133 
    134 #endif /* _X11_SCREEN_H_ */
    135