38921701e5
This make _cogl_framebuffer_blit take explicit src and dest framebuffer pointers and updates all the texture blitting strategies in cogl-blit.c to avoid pushing/popping to/from the the framebuffer stack. The removes the last user of the framebuffer stack which we've been aiming to remove before Cogl 2.0 Reviewed-by: Neil Roberts <neil@linux.intel.com> (cherry picked from commit 598ca33950a93dd7a201045c4abccda2a855e936)
96 lines
2.6 KiB
C
96 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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#include "cogl-framebuffer.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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int src_x,
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int src_y,
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int dst_x,
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int dst_y,
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int width,
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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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CoglFramebuffer *src_fb;
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CoglFramebuffer *dest_fb;
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CoglPipeline *pipeline;
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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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int src_x,
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int src_y,
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int dst_x,
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int dst_y,
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int width,
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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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