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54735dec84
The coding style has for a long time said to avoid using redundant glib
data types such as gint or gchar etc because we feel that they make the
code look unnecessarily foreign to developers coming from outside of the
Gnome developer community.
Note: When we tried to find the historical rationale for the types we
just found that they were apparently only added for consistent syntax
highlighting which didn't seem that compelling.
Up until now we have been continuing to use some of the platform
specific type such as gint{8,16,32,64} and gsize but this patch switches
us over to using the standard c99 equivalents instead so we can further
ensure that our code looks familiar to the widest range of C developers
who might potentially contribute to Cogl.
So instead of using the gint{8,16,32,64} and guint{8,16,32,64} types this
switches all Cogl code to instead use the int{8,16,32,64}_t and
uint{8,16,32,64}_t c99 types instead.
Instead of gsize we now use size_t
For now we are not going to use the c99 _Bool type and instead we have
introduced a new CoglBool type to use instead of gboolean.
Reviewed-by: Neil Roberts <neil@linux.intel.com>
(cherry picked from commit 5967dad2400d32ca6319cef6cb572e81bf2c15f0)
91 lines
2.6 KiB
C
91 lines
2.6 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) 2011 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, write to the
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* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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*/
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#ifndef __COGL_BLIT_H
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#define __COGL_BLIT_H
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#include <glib.h>
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#include "cogl-object-private.h"
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#include "cogl-texture.h"
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/* This structures and functions are used when a series of blits needs
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to be performed between two textures. In this case there are
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multiple methods we can use, most of which involve transferring
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between an FBO bound to the texture. */
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typedef struct _CoglBlitData CoglBlitData;
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typedef CoglBool (* CoglBlitBeginFunc) (CoglBlitData *data);
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typedef void (* CoglBlitEndFunc) (CoglBlitData *data);
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typedef void (* CoglBlitFunc) (CoglBlitData *data,
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unsigned int src_x,
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unsigned int src_y,
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unsigned int dst_x,
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unsigned int dst_y,
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unsigned int width,
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unsigned int height);
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typedef struct
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{
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const char *name;
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CoglBlitBeginFunc begin_func;
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CoglBlitFunc blit_func;
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CoglBlitEndFunc end_func;
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} CoglBlitMode;
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struct _CoglBlitData
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{
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CoglTexture *src_tex, *dst_tex;
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unsigned int src_width;
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unsigned int src_height;
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const CoglBlitMode *blit_mode;
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/* If we're not using an FBO then we g_malloc a buffer and copy the
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complete texture data in */
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unsigned char *image_data;
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CoglPixelFormat format;
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int bpp;
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};
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void
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_cogl_blit_begin (CoglBlitData *data,
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CoglTexture *dst_tex,
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CoglTexture *src_tex);
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void
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_cogl_blit (CoglBlitData *data,
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unsigned int src_x,
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unsigned int src_y,
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unsigned int dst_x,
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unsigned int dst_y,
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unsigned int width,
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unsigned int height);
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void
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_cogl_blit_end (CoglBlitData *data);
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#endif /* __COGL_BLIT_H */
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