/*
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* geo_mapper.cpp - geometry mapper implementation
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*
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* Copyright (c) 2017 Intel Corporation
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*
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* Author: Wind Yuan <feng.yuan@intel.com>
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*/
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#include "geo_mapper.h"
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namespace XCam {
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GeoMapper::GeoMapper ()
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: _out_width (0)
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, _out_height (0)
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, _factor_x (0.0f)
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, _factor_y (0.0f)
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{}
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GeoMapper::~GeoMapper ()
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{
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}
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bool
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GeoMapper::set_factors (float x, float y)
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{
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XCAM_FAIL_RETURN (
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ERROR, !XCAM_DOUBLE_EQUAL_AROUND (x, 0.0f) && !XCAM_DOUBLE_EQUAL_AROUND (y, 0.0f), false,
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"GeoMapper set factors failed. (x:%.3f, h:%.3f)", x, y);
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_factor_x = x;
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_factor_y = y;
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return true;
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}
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bool
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GeoMapper::set_output_size (uint32_t width, uint32_t height)
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{
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XCAM_FAIL_RETURN (
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ERROR, width && height, false,
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"GeoMapper set output size failed. (w:%d, h:%d)",
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width, height);
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_out_width = width;
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_out_height = height;
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return true;
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}
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bool
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GeoMapper::auto_calculate_factors (uint32_t lut_w, uint32_t lut_h)
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{
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XCAM_FAIL_RETURN (
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ERROR, _out_width > 1 && _out_height > 1, false,
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"GeoMapper auto calculate factors failed. output size was not set. (w:%d, h:%d)",
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_out_width, _out_height);
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XCAM_FAIL_RETURN (
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ERROR, lut_w > 1 && lut_w > 1, false,
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"GeoMapper auto calculate factors failed. lookuptable size need > 1. but set with (w:%d, h:%d)",
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lut_w, lut_h);
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XCAM_ASSERT (lut_w && lut_h);
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_factor_x = (_out_width - 1.0f) / (lut_w - 1.0f);
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_factor_y = (_out_height - 1.0f) / (lut_h - 1.0f);
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return true;
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}
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}
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