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43 lines
1.4 KiB
C++
43 lines
1.4 KiB
C++
//
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// Copyright (c) 2017 The Khronos Group Inc.
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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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#include "parseParameters.h"
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#include "errorHelpers.h"
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#include <string.h>
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bool is_power_of_two(int number)
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{
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return number && !(number & (number - 1));
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}
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extern void parseWimpyReductionFactor(const char *&arg, int &wimpyReductionFactor)
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{
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const char *arg_temp = strchr(&arg[1], ']');
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if (arg_temp != 0)
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{
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int new_factor = atoi(&arg[1]);
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arg = arg_temp; // Advance until ']'
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if (is_power_of_two(new_factor))
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{
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log_info("\n Wimpy reduction factor changed from %d to %d \n", wimpyReductionFactor, new_factor);
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wimpyReductionFactor = new_factor;
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}
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else
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{
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log_info("\n WARNING: Incorrect wimpy reduction factor %d, must be power of 2. The default value will be used.\n", new_factor);
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}
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}
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}
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