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4f6fe6f0e2
This fixes some problems which were stopping --disable-glib from working properly: • A lot of the public headers were including glib.h. This shouldn't be necessary because the API doesn't expose any glib types. Otherwise any apps would require glib in order to get the header. • The public headers were using G_BEGIN_DECLS. There is now a replacement macro called COGL_BEGIN_DECLS which is defined in cogl-types.h. • A similar fix has been done for G_GNUC_NULL_TERMINATED and G_GNUC_DEPRECATED. • The CFLAGS were not including $(builddir)/deps/glib which was preventing it finding the generated glibconfig.h when building out of tree. Reviewed-by: Robert Bragg <robert@linux.intel.com> (cherry picked from commit 4138b3141c2f39cddaea3d72bfc04342ed5092d0)
118 lines
3.4 KiB
C
118 lines
3.4 KiB
C
/*
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* Cogl
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*
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* An object oriented GL/GLES Abstraction/Utility Layer
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*
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* Copyright (C) 2007,2008,2009,2012 Intel Corporation.
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library. If not, see <http://www.gnu.org/licenses/>.
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*
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*
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*/
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#if !defined(__COGL_H_INSIDE__) && !defined(COGL_COMPILATION)
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#error "Only <cogl/cogl.h> can be included directly."
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#endif
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#ifndef __COGL_OFFSCREEN_H__
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#define __COGL_OFFSCREEN_H__
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#include <cogl/cogl-types.h>
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#include <cogl/cogl-texture.h>
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COGL_BEGIN_DECLS
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/**
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* SECTION:cogl-offscreen
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* @short_description: Fuctions for creating and manipulating offscreen
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* framebuffers.
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*
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* Cogl allows creating and operating on offscreen framebuffers.
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*/
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typedef struct _CoglOffscreen CoglOffscreen;
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#define COGL_OFFSCREEN(X) ((CoglOffscreen *)X)
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/* Offscreen api */
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/**
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* cogl_offscreen_new_to_texture:
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* @texture: A #CoglTexture pointer
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*
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* This creates an offscreen buffer object using the given @texture as the
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* primary color buffer. It doesn't just initialize the contents of the
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* offscreen buffer with the @texture; they are tightly bound so that
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* drawing to the offscreen buffer effectivly updates the contents of the
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* given texture. You don't need to destroy the offscreen buffer before
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* you can use the @texture again.
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*
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* <note>This only works with low-level #CoglTexture types such as
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* #CoglTexture2D, #CoglTexture3D and #CoglTextureRectangle, and not
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* with meta-texture types such as #CoglTexture2DSliced.</note>
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*
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* Return value: (transfer full): a newly instantiated #CoglOffscreen
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* framebuffer or %NULL if it wasn't possible to create the
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* buffer.
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*/
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CoglOffscreen *
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cogl_offscreen_new_to_texture (CoglTexture *texture);
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/**
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* cogl_is_offscreen:
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* @object: A pointer to a #CoglObject
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*
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* Determines whether the given #CoglObject references an offscreen
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* framebuffer object.
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*
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* Returns: %TRUE if @object is a #CoglOffscreen framebuffer,
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* %FALSE otherwise
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*/
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CoglBool
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cogl_is_offscreen (void *object);
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#ifndef COGL_DISABLE_DEPRECATED
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/**
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* cogl_offscreen_ref:
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* @offscreen: A pointer to a #CoglOffscreen framebuffer
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*
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* Increments the reference count on the @offscreen framebuffer.
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*
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* Return value: (transfer none): For convenience it returns the
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* given @offscreen
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*
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* Deprecated: 1.2: cogl_object_ref() should be used in new code.
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*/
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void *
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cogl_offscreen_ref (void *offscreen) G_GNUC_DEPRECATED;
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/**
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* cogl_offscreen_unref:
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* @offscreen: A pointer to a #CoglOffscreen framebuffer
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*
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* Decreases the reference count for the @offscreen buffer and frees it when
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* the count reaches 0.
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*
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* Deprecated: 1.2: cogl_object_unref() should be used in new code.
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*/
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void
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cogl_offscreen_unref (void *offscreen) G_GNUC_DEPRECATED;
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#endif /* COGL_DISABLE_DEPRECATED */
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COGL_END_DECLS
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#endif /* __COGL_OFFSCREEN_H__ */
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