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If you include a file that might define __INSIDE_COGL_H__, don't undefine it if it wasn't defined in that file. This makes it possible to include for example cogl-gles2.h from some other file which defines __INSIDE_COGL_H__. https://bugzilla.gnome.org/show_bug.cgi?id=768976
164 lines
6.2 KiB
C
164 lines
6.2 KiB
C
/*
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* Cogl
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*
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* A Low Level GPU Graphics and Utilities API
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*
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* Copyright (C) 2012 Intel Corporation.
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*
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* Permission is hereby granted, free of charge, to any person
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* obtaining a copy of this software and associated documentation
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* files (the "Software"), to deal in the Software without
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* restriction, including without limitation the rights to use, copy,
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* modify, merge, publish, distribute, sublicense, and/or sell copies
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* of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be
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* included in all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
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* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
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* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* SOFTWARE.
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*
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*/
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#ifndef __COGL_WAYLAND_SERVER_H
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#define __COGL_WAYLAND_SERVER_H
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#include <wayland-server.h>
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/* NB: this is a top-level header that can be included directly but we
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* want to be careful not to define __COGL_H_INSIDE__ when this is
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* included internally while building Cogl itself since
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* __COGL_H_INSIDE__ is used in headers to guard public vs private api
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* definitions
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*/
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#ifndef COGL_COMPILATION
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/* Note: When building Cogl .gir we explicitly define
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* __COGL_H_INSIDE__ */
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#ifndef __COGL_H_INSIDE__
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#define __COGL_H_INSIDE__
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#define __COGL_MUST_UNDEF_COGL_H_INSIDE_COGL_WAYLAND_SERVER_
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#endif
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#endif /* COGL_COMPILATION */
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#include <cogl/cogl-context.h>
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#include <cogl/cogl-texture-2d.h>
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COGL_BEGIN_DECLS
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/**
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* cogl_wayland_display_set_compositor_display:
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* @display: a #CoglDisplay
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* @wayland_display: A compositor's Wayland display pointer
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*
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* Informs Cogl of a compositor's Wayland display pointer. This
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* enables Cogl to register private wayland extensions required to
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* pass buffers between the clients and compositor.
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*
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* Since: 1.10
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* Stability: unstable
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*/
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void
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cogl_wayland_display_set_compositor_display (CoglDisplay *display,
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struct wl_display *wayland_display);
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/**
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* cogl_wayland_texture_2d_new_from_buffer:
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* @ctx: A #CoglContext
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* @buffer: A Wayland resource for a buffer
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* @error: A #CoglError for exceptions
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*
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* Uploads the @buffer referenced by the given Wayland resource to a
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* #CoglTexture2D. The buffer resource may refer to a wl_buffer or a
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* wl_shm_buffer.
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*
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* <note>The results are undefined for passing an invalid @buffer
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* pointer</note>
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* <note>It is undefined if future updates to @buffer outside the
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* control of Cogl will affect the allocated #CoglTexture2D. In some
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* cases the contents of the buffer are copied (such as shm buffers),
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* and in other cases the underlying storage is re-used directly (such
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* as drm buffers)</note>
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*
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* Returns: A newly allocated #CoglTexture2D, or if Cogl could not
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* validate the @buffer in some way (perhaps because of
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* an unsupported format) it will return %NULL and set
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* @error.
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*
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* Since: 1.10
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* Stability: unstable
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*/
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CoglTexture2D *
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cogl_wayland_texture_2d_new_from_buffer (CoglContext *ctx,
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struct wl_resource *buffer,
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CoglError **error);
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/**
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* cogl_wayland_texture_set_region_from_shm_buffer:
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* @texture: a #CoglTexture
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* @width: The width of the region to copy
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* @height: The height of the region to copy
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* @shm_buffer: The source buffer
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* @src_x: The X offset within the source bufer to copy from
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* @src_y: The Y offset within the source bufer to copy from
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* @dst_x: The X offset within the texture to copy to
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* @dst_y: The Y offset within the texture to copy to
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* @level: The mipmap level of the texture to copy to
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* @error: A #CoglError to return exceptional errors
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*
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* Sets the pixels in a rectangular subregion of @texture from a
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* Wayland SHM buffer. Generally this would be used in response to
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* wl_surface.damage event in a compositor in order to update the
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* texture with the damaged region. This is just a convenience wrapper
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* around getting the SHM buffer pointer and calling
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* cogl_texture_set_region(). See that function for a description of
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* the level parameter.
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*
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* <note>Since the storage for a #CoglTexture is allocated lazily then
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* if the given @texture has not previously been allocated then this
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* api can return %FALSE and throw an exceptional @error if there is
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* not enough memory to allocate storage for @texture.</note>
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*
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* Return value: %TRUE if the subregion upload was successful, and
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* %FALSE otherwise
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* Since: 1.18
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* Stability: unstable
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*/
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CoglBool
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cogl_wayland_texture_set_region_from_shm_buffer (CoglTexture *texture,
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int src_x,
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int src_y,
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int width,
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int height,
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struct wl_shm_buffer *
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shm_buffer,
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int dst_x,
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int dst_y,
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int level,
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CoglError **error);
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COGL_END_DECLS
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/* The gobject introspection scanner seems to parse public headers in
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* isolation which means we need to be extra careful about how we
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* define and undefine __COGL_H_INSIDE__ used to detect when internal
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* headers are incorrectly included by developers. In the gobject
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* introspection case we have to manually define __COGL_H_INSIDE__ as
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* a commandline argument for the scanner which means we must be
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* careful not to undefine it in a header...
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*/
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#ifdef __COGL_MUST_UNDEF_COGL_H_INSIDE_COGL_WAYLAND_SERVER_
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#undef __COGL_H_INSIDE__
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#undef __COGL_MUST_UNDEF_COGL_H_INSIDE_COGL_WAYLAND_SERVER_
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#endif
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#endif /* __COGL_WAYLAND_SERVER_H */
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