• Home
  • Line#
  • Scopes#
  • Navigate#
  • Raw
  • Download
1 /**************************************************************************
2  *
3  * Copyright 2007 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 
29 #ifndef ST_CB_FBO_H
30 #define ST_CB_FBO_H
31 
32 #include "main/fbobject.h"
33 #include "main/glheader.h"
34 #include "main/mtypes.h"
35 
36 #include "pipe/p_compiler.h"
37 #include "pipe/p_format.h"
38 
39 struct dd_function_table;
40 struct pipe_context;
41 
42 /**
43  * Derived renderbuffer class.  Just need to add a pointer to the
44  * pipe surface.
45  */
46 struct st_renderbuffer
47 {
48    struct gl_renderbuffer Base;
49    struct pipe_resource *texture;
50    /* This points to either "surface_linear" or "surface_srgb".
51     * It doesn't hold the pipe_surface reference. The other two do.
52     */
53    struct pipe_surface *surface;
54    struct pipe_surface *surface_linear;
55    struct pipe_surface *surface_srgb;
56    GLboolean defined;        /**< defined contents? */
57 
58    struct pipe_transfer *transfer; /**< only used when mapping the resource */
59 
60    /**
61     * Used only when hardware accumulation buffers are not supported.
62     */
63    boolean software;
64    void *data;
65 
66    bool use_readpix_cache;
67 
68    /* Inputs from Driver.RenderTexture, don't use directly. */
69    boolean is_rtt; /**< whether Driver.RenderTexture was called */
70    unsigned rtt_face, rtt_slice;
71    boolean rtt_layered; /**< whether glFramebufferTexture was called */
72 };
73 
74 
75 static inline struct st_renderbuffer *
st_renderbuffer(struct gl_renderbuffer * rb)76 st_renderbuffer(struct gl_renderbuffer *rb)
77 {
78    return (struct st_renderbuffer *) rb;
79 }
80 
81 static inline struct pipe_resource *
st_get_renderbuffer_resource(struct gl_renderbuffer * rb)82 st_get_renderbuffer_resource(struct gl_renderbuffer *rb)
83 {
84    return st_renderbuffer(rb)->texture;
85 }
86 
87 /**
88  * Cast wrapper to convert a struct gl_framebuffer to an st_framebuffer.
89  * Return NULL if the struct gl_framebuffer is a user-created framebuffer.
90  * We'll only return non-null for window system framebuffers.
91  * Note that this function may fail.
92  */
93 static inline struct st_framebuffer *
st_ws_framebuffer(struct gl_framebuffer * fb)94 st_ws_framebuffer(struct gl_framebuffer *fb)
95 {
96    /* FBO cannot be casted.  See st_new_framebuffer */
97    if (fb && _mesa_is_winsys_fbo(fb) &&
98        fb != _mesa_get_incomplete_framebuffer())
99       return (struct st_framebuffer *) fb;
100    return NULL;
101 }
102 
103 
104 extern struct gl_renderbuffer *
105 st_new_renderbuffer_fb(enum pipe_format format, unsigned samples, boolean sw);
106 
107 extern void
108 st_update_renderbuffer_surface(struct st_context *st,
109                                struct st_renderbuffer *strb);
110 
111 extern void
112 st_init_fbo_functions(struct dd_function_table *functions);
113 
114 #endif /* ST_CB_FBO_H */
115