mutter/cogl/cogl-depth-state.c
Neil Roberts be9d5b34c6 pipeline: Use cogl_depth_state_init to init default depth state
The previous code to initialise the depth state on the default
pipeline wasn't initialising the magic number. If you later tried to
retrieve the depth state using cogl_pipeline_get_depth_state you would
end up with an invalid depth state struct and you would just get
warnings if you tried to use it for anything. This patch just replaces
the initialisation with a call to cogl_depth_state_init because it
uses the same values anyway.

Reviewed-by: Robert Bragg <robert@linux.intel.com>
2012-04-03 16:36:54 +01:00

111 lines
3.0 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-util.h"
#include "cogl-depth-state-private.h"
#include "cogl-depth-state.h"
void
cogl_depth_state_init (CoglDepthState *state)
{
state->magic = COGL_DEPTH_STATE_MAGIC;
/* The same as the GL defaults */
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;
}