src/mesa/state_tracker/st_cb_fbo.h

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   2  *
   3  * Copyright 2007 VMware, Inc.
   4  * All Rights Reserved.
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   7  * copy of this software and associated documentation files (the
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  15  * next paragraph) shall be included in all copies or substantial portions
  16  * of the Software.
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  27
  28
  29 #ifndef ST_CB_FBO_H
  30 #define ST_CB_FBO_H
  31
  32 #include "main/compiler.h"
  33 #include "main/fbobject.h"
  34 #include "main/glheader.h"
  35 #include "main/mtypes.h"
  36
  37 #include "pipe/p_compiler.h"
  38 #include "pipe/p_format.h"
  39
  40 struct dd_function_table;
  41 struct pipe_context;
  42
  43 /**
  44  * Derived renderbuffer class.  Just need to add a pointer to the
  45  * pipe surface.
  46  */
  47 struct st_renderbuffer
  48 {
  49    struct gl_renderbuffer Base;
  50    struct pipe_resource *texture;
  51    /* This points to either "surface_linear" or "surface_srgb".
  52     * It doesn't hold the pipe_surface reference. The other two do.
  53     */
  54    struct pipe_surface *surface;
  55    struct pipe_surface *surface_linear;
  56    struct pipe_surface *surface_srgb;
  57    GLboolean defined;        /**< defined contents? */
  58
  59    struct pipe_transfer *transfer; /**< only used when mapping the resource */
  60
  61    /**
  62     * Used only when hardware accumulation buffers are not supported.
  63     */
  64    boolean software;
  65    void *data;
  66
  67    bool use_readpix_cache;
  68
  69    /* Inputs from Driver.RenderTexture, don't use directly. */
  70    boolean is_rtt; /**< whether Driver.RenderTexture was called */
  71    unsigned rtt_face, rtt_slice;
  72    boolean rtt_layered; /**< whether glFramebufferTexture was called */
  73 };
  74
  75
  76 static inline struct st_renderbuffer *
  77 st_renderbuffer(struct gl_renderbuffer *rb)
  78 {
  79    return (struct st_renderbuffer *) rb;
  80 }
  81
  82
  83 /**
  84  * Cast wrapper to convert a struct gl_framebuffer to an st_framebuffer.
  85  * Return NULL if the struct gl_framebuffer is a user-created framebuffer.
  86  * We'll only return non-null for window system framebuffers.
  87  * Note that this function may fail.
  88  */
  89 static inline struct st_framebuffer *
  90 st_ws_framebuffer(struct gl_framebuffer *fb)
  91 {
  92    /* FBO cannot be casted.  See st_new_framebuffer */
  93    if (fb && _mesa_is_winsys_fbo(fb) &&
  94        fb != _mesa_get_incomplete_framebuffer())
  95       return (struct st_framebuffer *) fb;
  96    return NULL;
  97 }
  98
  99
 100 extern struct gl_renderbuffer *
 101 st_new_renderbuffer_fb(enum pipe_format format, int samples, boolean sw);
 102
 103 extern void
 104 st_update_renderbuffer_surface(struct st_context *st,
 105                                struct st_renderbuffer *strb);
 106
 107 extern void
 108 st_init_fbo_functions(struct dd_function_table *functions);
 109
 110 #endif /* ST_CB_FBO_H */