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cce8645aba
When COGL_ENABLE_EXPERIMENTAL_2_0_API is defined cogl.h will now include
cogl2-path.h which changes cogl_path_new() so it can directly return a
CoglPath pointer; it no longer exposes a prototype for
cogl_{get,set}_path and all the remaining cogl_path_ functions now take
an explicit path as their first argument.
The idea is that we want to encourage developers to retain path objects
for as long as possible so they can take advantage of us uploading the
path geometry to the GPU. Currently although it is possible to start a
new path and query the current path, it is not convenient.
The other thing is that we want to get Cogl to the point where nothing
depends on a global, current context variable. This will allow us to one
day define a sensible threading model if/when that is ever desired.
304 lines
6.4 KiB
C
304 lines
6.4 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) 2010 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, see
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* <http://www.gnu.org/licenses/>.
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*
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* Authors:
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* Robert Bragg <robert@linux.intel.com>
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*/
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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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#include "cogl.h"
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#include "cogl-internal.h"
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#include "cogl-context.h"
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#include "cogl2-path.h"
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#include <string.h>
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#include <math.h>
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#undef cogl_path_set_fill_rule
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void
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cogl_path_set_fill_rule (CoglPathFillRule fill_rule)
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{
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_COGL_GET_CONTEXT (ctx, NO_RETVAL);
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cogl2_path_set_fill_rule (ctx->current_path, fill_rule);
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}
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#undef cogl_path_get_fill_rule
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CoglPathFillRule
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cogl_path_get_fill_rule (void)
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{
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_COGL_GET_CONTEXT (ctx, COGL_PATH_FILL_RULE_EVEN_ODD);
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return cogl2_path_get_fill_rule (ctx->current_path);
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}
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#undef cogl_path_fill
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void
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cogl_path_fill (void)
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{
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_COGL_GET_CONTEXT (ctx, NO_RETVAL);
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cogl2_path_fill (ctx->current_path);
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cogl_object_unref (ctx->current_path);
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ctx->current_path = cogl2_path_new ();
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}
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#undef cogl_path_fill_preserve
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void
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cogl_path_fill_preserve (void)
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{
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_COGL_GET_CONTEXT (ctx, NO_RETVAL);
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cogl2_path_fill (ctx->current_path);
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}
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#undef cogl_path_stroke
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void
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cogl_path_stroke (void)
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{
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_COGL_GET_CONTEXT (ctx, NO_RETVAL);
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cogl2_path_stroke (ctx->current_path);
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cogl_object_unref (ctx->current_path);
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ctx->current_path = cogl2_path_new ();
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}
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#undef cogl_path_stroke_preserve
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void
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cogl_path_stroke_preserve (void)
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{
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_COGL_GET_CONTEXT (ctx, NO_RETVAL);
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cogl2_path_stroke (ctx->current_path);
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}
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#undef cogl_path_move_to
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void
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cogl_path_move_to (float x,
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float y)
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{
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_COGL_GET_CONTEXT (ctx, NO_RETVAL);
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cogl2_path_move_to (ctx->current_path, x, y);
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}
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#undef cogl_path_rel_move_to
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void
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cogl_path_rel_move_to (float x,
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float y)
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{
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_COGL_GET_CONTEXT (ctx, NO_RETVAL);
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cogl2_path_rel_move_to (ctx->current_path, x, y);
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}
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#undef cogl_path_line_to
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void
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cogl_path_line_to (float x,
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float y)
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{
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_COGL_GET_CONTEXT (ctx, NO_RETVAL);
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cogl2_path_line_to (ctx->current_path, x, y);
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}
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#undef cogl_path_rel_line_to
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void
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cogl_path_rel_line_to (float x,
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float y)
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{
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_COGL_GET_CONTEXT (ctx, NO_RETVAL);
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cogl2_path_rel_line_to (ctx->current_path, x, y);
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}
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#undef cogl_path_close
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void
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cogl_path_close (void)
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{
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_COGL_GET_CONTEXT (ctx, NO_RETVAL);
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cogl2_path_close (ctx->current_path);
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}
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#undef cogl_path_new
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void
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cogl_path_new (void)
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{
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_COGL_GET_CONTEXT (ctx, NO_RETVAL);
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cogl_object_unref (ctx->current_path);
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ctx->current_path = cogl2_path_new ();
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}
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#undef cogl_path_line
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void
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cogl_path_line (float x_1,
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float y_1,
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float x_2,
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float y_2)
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{
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_COGL_GET_CONTEXT (ctx, NO_RETVAL);
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cogl2_path_line (ctx->current_path, x_1, y_1, x_2, y_2);
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}
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#undef cogl_path_polyline
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void
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cogl_path_polyline (const float *coords,
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int num_points)
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{
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_COGL_GET_CONTEXT (ctx, NO_RETVAL);
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cogl2_path_polyline (ctx->current_path, coords, num_points);
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}
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#undef cogl_path_polygon
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void
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cogl_path_polygon (const float *coords,
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int num_points)
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{
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_COGL_GET_CONTEXT (ctx, NO_RETVAL);
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cogl2_path_polygon (ctx->current_path, coords, num_points);
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}
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#undef cogl_path_rectangle
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void
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cogl_path_rectangle (float x_1,
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float y_1,
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float x_2,
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float y_2)
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{
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_COGL_GET_CONTEXT (ctx, NO_RETVAL);
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cogl2_path_rectangle (ctx->current_path, x_1, y_1, x_2, y_2);
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}
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#undef cogl_path_arc
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void
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cogl_path_arc (float center_x,
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float center_y,
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float radius_x,
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float radius_y,
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float angle_1,
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float angle_2)
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{
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_COGL_GET_CONTEXT (ctx, NO_RETVAL);
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cogl2_path_arc (ctx->current_path,
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center_x,
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center_y,
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radius_x,
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radius_y,
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angle_1,
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angle_2);
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}
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#undef cogl_path_ellipse
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void
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cogl_path_ellipse (float center_x,
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float center_y,
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float radius_x,
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float radius_y)
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{
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_COGL_GET_CONTEXT (ctx, NO_RETVAL);
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cogl2_path_ellipse (ctx->current_path,
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center_x,
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center_y,
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radius_x,
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radius_y);
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}
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#undef cogl_path_round_rectangle
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void
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cogl_path_round_rectangle (float x_1,
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float y_1,
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float x_2,
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float y_2,
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float radius,
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float arc_step)
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{
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_COGL_GET_CONTEXT (ctx, NO_RETVAL);
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cogl2_path_round_rectangle (ctx->current_path,
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x_1, y_1, x_2, y_2, radius, arc_step);
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}
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#undef cogl_path_curve_to
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void
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cogl_path_curve_to (float x_1,
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float y_1,
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float x_2,
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float y_2,
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float x_3,
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float y_3)
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{
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_COGL_GET_CONTEXT (ctx, NO_RETVAL);
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cogl2_path_curve_to (ctx->current_path,
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x_1, y_2, x_2, y_2, x_3, y_3);
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}
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#undef cogl_path_rel_curve_to
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void
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cogl_path_rel_curve_to (float x_1,
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float y_1,
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float x_2,
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float y_2,
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float x_3,
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float y_3)
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{
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_COGL_GET_CONTEXT (ctx, NO_RETVAL);
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cogl2_path_rel_curve_to (ctx->current_path,
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x_1, y_1, x_2, y_2, x_3, y_3);
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}
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CoglPath *
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cogl_get_path (void)
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{
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_COGL_GET_CONTEXT (ctx, NULL);
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return ctx->current_path;
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}
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void
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cogl_set_path (CoglPath *path)
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{
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_COGL_GET_CONTEXT (ctx, NO_RETVAL);
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g_return_if_fail (cogl_is_path (path));
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/* Reference the new object first in case it is the same as the old
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object */
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cogl_object_ref (path);
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cogl_object_unref (ctx->current_path);
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ctx->current_path = path;
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}
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