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)
122 lines
3.0 KiB
C
122 lines
3.0 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"
|
|
#include "cogl-attribute-private.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;
|
|
|
|
CoglContext *context;
|
|
|
|
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 */
|
|
CoglBool is_rectangle;
|
|
};
|
|
|
|
void
|
|
_cogl_add_path_to_stencil_buffer (CoglPath *path,
|
|
CoglBool merge,
|
|
CoglBool need_clear);
|
|
|
|
void
|
|
_cogl_path_get_bounds (CoglPath *path,
|
|
float *min_x,
|
|
float *min_y,
|
|
float *max_x,
|
|
float *max_y);
|
|
|
|
CoglBool
|
|
_cogl_path_is_rectangle (CoglPath *path);
|
|
|
|
void
|
|
_cogl_path_fill_nodes (CoglPath *path, CoglDrawFlags flags);
|
|
|
|
#endif /* __COGL_PATH_PRIVATE_H */
|