mirror of
https://github.com/brl/mutter.git
synced 2024-11-30 03:50:47 -05:00
1a30f4fb15
This adds COGL_PIPELINE_WRAP_MODE_MIRRORED_REPEAT enum so that mirrored texture repeating can be used. This also adds support for emulating the MIRRORED_REPEAT mode via the cogl-spans API so it can also be used with meta textures such as sliced and atlas textures. Reviewed-by: Neil Roberts <neil@linux.intel.com>
75 lines
1.8 KiB
C
75 lines
1.8 KiB
C
/*
|
|
* Cogl
|
|
*
|
|
* An object oriented GL/GLES Abstraction/Utility Layer
|
|
*
|
|
* Copyright (C) 2007,2008,2009 Intel Corporation.
|
|
*
|
|
* This library is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU Lesser General Public
|
|
* License as published by the Free Software Foundation; either
|
|
* version 2 of the License, or (at your option) any later version.
|
|
*
|
|
* This library is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
* Lesser General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU Lesser General Public
|
|
* License along with this library. If not, see <http://www.gnu.org/licenses/>.
|
|
*
|
|
*
|
|
*/
|
|
|
|
#ifndef __COGL_SPANS_PRIVATE_H
|
|
#define __COGL_SPANS_PRIVATE_H
|
|
|
|
#include "cogl-handle.h"
|
|
#include "cogl-pipeline-layer-state.h"
|
|
|
|
typedef struct _CoglSpan
|
|
{
|
|
float start;
|
|
float size;
|
|
float waste;
|
|
} CoglSpan;
|
|
|
|
typedef struct _CoglSpanIter
|
|
{
|
|
int index;
|
|
const CoglSpan *spans;
|
|
int n_spans;
|
|
const CoglSpan *span;
|
|
float pos;
|
|
float next_pos;
|
|
float origin;
|
|
float cover_start;
|
|
float cover_end;
|
|
float intersect_start;
|
|
float intersect_end;
|
|
gboolean intersects;
|
|
gboolean flipped;
|
|
CoglPipelineWrapMode wrap_mode;
|
|
int mirror_direction;
|
|
} CoglSpanIter;
|
|
|
|
void
|
|
_cogl_span_iter_update (CoglSpanIter *iter);
|
|
|
|
void
|
|
_cogl_span_iter_begin (CoglSpanIter *iter,
|
|
const CoglSpan *spans,
|
|
int n_spans,
|
|
float normalize_factor,
|
|
float cover_start,
|
|
float cover_end,
|
|
CoglPipelineWrapMode wrap_mode);
|
|
|
|
void
|
|
_cogl_span_iter_next (CoglSpanIter *iter);
|
|
|
|
gboolean
|
|
_cogl_span_iter_end (CoglSpanIter *iter);
|
|
|
|
#endif /* __COGL_SPANS_PRIVATE_H */
|