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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    struct pipe_resource *msaa_textures[ST_ATTACHMENT_COUNT];
61    unsigned int texture_mask, texture_stamp;
62 
63    struct pipe_fence_handle *swap_fences[DRI_SWAP_FENCES_MAX];
64    unsigned int cur_fences;
65    unsigned int head;
66    unsigned int tail;
67    unsigned int desired_fences;
68    boolean flushing; /* prevents recursion in dri_flush */
69 
70    /* used only by DRISW */
71    struct pipe_surface *drisw_surface;
72 
73    /* hooks filled in by dri2 & drisw */
74    void (*allocate_textures)(struct dri_context *ctx,
75                              struct dri_drawable *drawable,
76                              const enum st_attachment_type *statts,
77                              unsigned count);
78 
79    void (*update_drawable_info)(struct dri_drawable *drawable);
80 
81    void (*flush_frontbuffer)(struct dri_context *ctx,
82                              struct dri_drawable *drawable,
83                              enum st_attachment_type statt);
84 
85    void (*update_tex_buffer)(struct dri_drawable *drawable,
86                              struct dri_context *ctx,
87                              struct pipe_resource *res);
88    void (*flush_swapbuffers)(struct dri_context *ctx,
89                              struct dri_drawable *drawable);
90 };
91 
92 static inline struct dri_drawable *
dri_drawable(__DRIdrawable * driDrawPriv)93 dri_drawable(__DRIdrawable * driDrawPriv)
94 {
95    return (struct dri_drawable *) (driDrawPriv)
96       ? driDrawPriv->driverPrivate : NULL;
97 }
98 
99 /***********************************************************************
100  * dri_drawable.c
101  */
102 boolean
103 dri_create_buffer(__DRIscreen * sPriv,
104 		  __DRIdrawable * dPriv,
105 		  const struct gl_config * visual, boolean isPixmap);
106 
107 void dri_destroy_buffer(__DRIdrawable * dPriv);
108 
109 void
110 dri_drawable_get_format(struct dri_drawable *drawable,
111                         enum st_attachment_type statt,
112                         enum pipe_format *format,
113                         unsigned *bind);
114 
115 void
116 dri_pipe_blit(struct pipe_context *pipe,
117               struct pipe_resource *dst,
118               struct pipe_resource *src);
119 
120 void
121 dri_flush(__DRIcontext *cPriv,
122           __DRIdrawable *dPriv,
123           unsigned flags,
124           enum __DRI2throttleReason reason);
125 
126 extern const __DRItexBufferExtension driTexBufferExtension;
127 extern const __DRI2throttleExtension dri2ThrottleExtension;
128 #endif
129 
130 /* vim: set sw=3 ts=8 sts=3 expandtab: */
131