mirror of
https://github.com/brl/mutter.git
synced 2024-11-29 19:40:43 -05:00
ce7c06dc03
This is part of a broader cleanup of some of the experimental Cogl API. One of the reasons for this particular rename is to switch away from using the term "Array" which implies a regular, indexable layout which isn't the case. We also want to have a strongly implied relationship between CoglAttributes and CoglAttributeBuffers.
116 lines
2.8 KiB
C
116 lines
2.8 KiB
C
/*
|
|
* Cogl
|
|
*
|
|
* An object oriented GL/GLES Abstraction/Utility Layer
|
|
*
|
|
* Copyright (C) 2010 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_PATH_PRIVATE_H
|
|
#define __COGL_PATH_PRIVATE_H
|
|
|
|
#include "cogl-object.h"
|
|
|
|
typedef struct _floatVec2
|
|
{
|
|
float x;
|
|
float y;
|
|
} floatVec2;
|
|
|
|
typedef struct _CoglPathNode
|
|
{
|
|
float x;
|
|
float y;
|
|
unsigned int path_size;
|
|
} CoglPathNode;
|
|
|
|
typedef struct _CoglBezQuad
|
|
{
|
|
floatVec2 p1;
|
|
floatVec2 p2;
|
|
floatVec2 p3;
|
|
} CoglBezQuad;
|
|
|
|
typedef struct _CoglBezCubic
|
|
{
|
|
floatVec2 p1;
|
|
floatVec2 p2;
|
|
floatVec2 p3;
|
|
floatVec2 p4;
|
|
} CoglBezCubic;
|
|
|
|
typedef struct _CoglPathData CoglPathData;
|
|
|
|
struct _CoglPath
|
|
{
|
|
CoglObject _parent;
|
|
|
|
CoglPathData *data;
|
|
};
|
|
|
|
#define COGL_PATH_N_ATTRIBUTES 2
|
|
|
|
struct _CoglPathData
|
|
{
|
|
unsigned int ref_count;
|
|
|
|
CoglPathFillRule fill_rule;
|
|
|
|
GArray *path_nodes;
|
|
|
|
floatVec2 path_start;
|
|
floatVec2 path_pen;
|
|
unsigned int last_path;
|
|
floatVec2 path_nodes_min;
|
|
floatVec2 path_nodes_max;
|
|
|
|
CoglAttributeBuffer *fill_attribute_buffer;
|
|
CoglIndices *fill_vbo_indices;
|
|
unsigned int fill_vbo_n_indices;
|
|
CoglAttribute *fill_attributes[COGL_PATH_N_ATTRIBUTES + 1];
|
|
|
|
CoglAttributeBuffer *stroke_attribute_buffer;
|
|
CoglAttribute **stroke_attributes;
|
|
unsigned int stroke_n_attributes;
|
|
|
|
/* This is used as an optimisation for when the path contains a
|
|
single contour specified using cogl2_path_rectangle. Cogl is more
|
|
optimised to handle rectangles than paths so we can detect this
|
|
case and divert to the journal or a rectangle clip. If it is TRUE
|
|
then the entire path can be described by calling
|
|
_cogl_path_get_bounds */
|
|
gboolean is_rectangle;
|
|
};
|
|
|
|
void
|
|
_cogl_add_path_to_stencil_buffer (CoglPath *path,
|
|
gboolean merge,
|
|
gboolean need_clear);
|
|
|
|
void
|
|
_cogl_path_get_bounds (CoglPath *path,
|
|
float *min_x,
|
|
float *min_y,
|
|
float *max_x,
|
|
float *max_y);
|
|
|
|
gboolean
|
|
_cogl_path_is_rectangle (CoglPath *path);
|
|
|
|
#endif /* __COGL_PATH_PRIVATE_H */
|