mutter/cogl/cogl-depth-state.c
Robert Bragg b72f255c0a Start to reduce dependence on glib
Since we've had several developers from admirable projects say they
would like to use Cogl but would really prefer not to pull in
gobject,gmodule and glib as extra dependencies we are investigating if
we can get to the point where glib is only an optional dependency.
Actually we feel like we only make minimal use of glib anyway, so it may
well be quite straightforward to achieve this.

This adds a --disable-glib configure option that can be used to disable
features that depend on glib.

Actually --disable-glib doesn't strictly disable glib at this point
because it's more helpful if cogl continues to build as we make
incremental progress towards this.

The first use of glib that this patch tackles is the use of
g_return_val_if_fail and g_return_if_fail which have been replaced with
equivalent _COGL_RETURN_VAL_IF_FAIL and _COGL_RETURN_IF_FAIL macros.

Reviewed-by: Neil Roberts <neil@linux.intel.com>
2011-11-01 12:03:02 +00:00

110 lines
2.9 KiB
C

/*
* Cogl
*
* An object oriented GL/GLES Abstraction/Utility Layer
*
* Copyright (C) 2011 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/>.
*
* Authors:
* Robert Bragg <robert@linux.intel.com>
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <cogl/cogl.h>
#include "cogl-util.h"
#include "cogl-depth-state-private.h"
void
cogl_depth_state_init (CoglDepthState *state)
{
state->magic = COGL_DEPTH_STATE_MAGIC;
state->test_enabled = FALSE;
state->write_enabled = TRUE;
state->test_function = COGL_DEPTH_TEST_FUNCTION_LESS;
state->range_near = 0;
state->range_far = 1;
}
void
cogl_depth_state_set_test_enabled (CoglDepthState *state,
gboolean enabled)
{
_COGL_RETURN_IF_FAIL (state->magic == COGL_DEPTH_STATE_MAGIC);
state->test_enabled = enabled;
}
gboolean
cogl_depth_state_get_test_enabled (CoglDepthState *state)
{
_COGL_RETURN_VAL_IF_FAIL (state->magic == COGL_DEPTH_STATE_MAGIC, FALSE);
return state->test_enabled;
}
void
cogl_depth_state_set_write_enabled (CoglDepthState *state,
gboolean enabled)
{
_COGL_RETURN_IF_FAIL (state->magic == COGL_DEPTH_STATE_MAGIC);
state->write_enabled = enabled;
}
gboolean
cogl_depth_state_get_write_enabled (CoglDepthState *state)
{
_COGL_RETURN_VAL_IF_FAIL (state->magic == COGL_DEPTH_STATE_MAGIC, FALSE);
return state->write_enabled;
}
void
cogl_depth_state_set_test_function (CoglDepthState *state,
CoglDepthTestFunction function)
{
_COGL_RETURN_IF_FAIL (state->magic == COGL_DEPTH_STATE_MAGIC);
state->test_function = function;
}
CoglDepthTestFunction
cogl_depth_state_get_test_function (CoglDepthState *state)
{
_COGL_RETURN_VAL_IF_FAIL (state->magic == COGL_DEPTH_STATE_MAGIC, FALSE);
return state->test_function;
}
void
cogl_depth_state_set_range (CoglDepthState *state,
float near,
float far)
{
_COGL_RETURN_IF_FAIL (state->magic == COGL_DEPTH_STATE_MAGIC);
state->range_near = near;
state->range_far = far;
}
void
cogl_depth_state_get_range (CoglDepthState *state,
float *near_out,
float *far_out)
{
_COGL_RETURN_IF_FAIL (state->magic == COGL_DEPTH_STATE_MAGIC);
*near_out = state->range_near;
*far_out = state->range_far;
}