src/gallium/auxiliary/util/u_surface.h

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   3  * Copyright 2009 VMware, Inc.  All Rights Reserved.
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  26
  27
  28 #ifndef U_SURFACE_H
  29 #define U_SURFACE_H
  30
  31
  32 #include "pipe/p_compiler.h"
  33 #include "pipe/p_state.h"
  34
  35
  36 /**
  37  * Are s1 and s2 the same surface?
  38  * Surfaces are basically views into textures so check if the two surfaces
  39  * name the same part of the same texture.
  40  */
  41 static INLINE boolean
  42 util_same_surface(const struct pipe_surface *s1, const struct pipe_surface *s2)
  43 {
  44    return (s1->texture == s2->texture &&
  45            s1->face == s2->face &&
  46            s1->level == s2->level &&
  47            s1->zslice == s2->zslice);
  48 }
  49
  50
  51
  52
  53 extern boolean
  54 util_create_rgba_surface(struct pipe_screen *screen,
  55                          uint width, uint height, uint bind,
  56                          struct pipe_resource **textureOut,
  57                          struct pipe_surface **surfaceOut);
  58
  59
  60 extern void
  61 util_destroy_rgba_surface(struct pipe_resource *texture,
  62                           struct pipe_surface *surface);
  63
  64
  65 extern boolean
  66 util_framebuffer_state_equal(const struct pipe_framebuffer_state *dst,
  67                              const struct pipe_framebuffer_state *src);
  68
  69 extern void
  70 util_copy_framebuffer_state(struct pipe_framebuffer_state *dst,
  71                             const struct pipe_framebuffer_state *src);
  72
  73
  74 extern void
  75 util_unreference_framebuffer_state(struct pipe_framebuffer_state *fb);
  76
  77
  78 #endif /* U_SURFACE_H */