Wind Yuan | 75564b1 | 2015-01-15 06:51:15 -0500 | [diff] [blame] | 1 | /* |
| 2 | * isp_config_translator.cpp - isp config translator |
| 3 | * |
| 4 | * Copyright (c) 2014-2015 Intel Corporation |
| 5 | * |
| 6 | * Licensed under the Apache License, Version 2.0 (the "License"); |
| 7 | * you may not use this file except in compliance with the License. |
| 8 | * You may obtain a copy of the License at |
| 9 | * |
| 10 | * http://www.apache.org/licenses/LICENSE-2.0 |
| 11 | * |
| 12 | * Unless required by applicable law or agreed to in writing, software |
| 13 | * distributed under the License is distributed on an "AS IS" BASIS, |
| 14 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 15 | * See the License for the specific language governing permissions and |
| 16 | * limitations under the License. |
| 17 | * |
| 18 | * Author: Wind Yuan <feng.yuan@intel.com> |
| 19 | */ |
| 20 | |
| 21 | #include "isp_config_translator.h" |
| 22 | #include <math.h> |
| 23 | |
| 24 | namespace XCam { |
| 25 | |
| 26 | static uint32_t |
| 27 | _get_max_bits (double value) |
| 28 | { |
| 29 | uint32_t max_int = 0; |
| 30 | uint32_t interger_bits = 0; |
| 31 | |
| 32 | max_int = (uint32_t)value; |
| 33 | while (max_int) { |
| 34 | ++interger_bits; |
| 35 | max_int = (max_int >> 1); |
| 36 | } |
| 37 | return interger_bits; |
| 38 | } |
| 39 | |
| 40 | IspConfigTranslator::IspConfigTranslator (SmartPtr<SensorDescriptor> &sensor) |
| 41 | : _sensor (sensor) |
| 42 | { |
| 43 | XCAM_ASSERT (_sensor.ptr()); |
| 44 | } |
| 45 | |
| 46 | IspConfigTranslator::~IspConfigTranslator () |
| 47 | { |
| 48 | } |
| 49 | |
| 50 | XCamReturn |
| 51 | IspConfigTranslator::translate_white_balance ( |
| 52 | const XCam3aResultWhiteBalance &from, |
| 53 | struct atomisp_wb_config &to) |
| 54 | { |
| 55 | uint32_t interger_bits = 0; |
| 56 | double multiplier = 0.0; |
| 57 | double max_gain = XCAM_MAX (from.b_gain, from.r_gain); |
| 58 | max_gain = XCAM_MAX (max_gain, from.gr_gain); |
| 59 | max_gain = XCAM_MAX (max_gain, from.gb_gain); |
| 60 | |
| 61 | interger_bits = _get_max_bits (max_gain); |
| 62 | multiplier = (double)(1 << (16 - interger_bits)); |
| 63 | to.integer_bits = interger_bits; |
| 64 | to.gr = (uint32_t)(from.gr_gain * multiplier + 0.5); |
| 65 | to.r = (uint32_t)(from.r_gain * multiplier + 0.5); |
| 66 | to.b = (uint32_t)(from.b_gain * multiplier + 0.5); |
| 67 | to.gb = (uint32_t)(from.gb_gain * multiplier + 0.5); |
| 68 | |
| 69 | return XCAM_RETURN_NO_ERROR; |
| 70 | } |
| 71 | |
| 72 | XCamReturn |
| 73 | IspConfigTranslator::translate_black_level ( |
| 74 | const XCam3aResultBlackLevel &from, struct atomisp_ob_config &to) |
| 75 | { |
| 76 | double multiplier = (double)(1 << 16); |
| 77 | |
| 78 | to.mode = atomisp_ob_mode_fixed; |
| 79 | to.level_gr = (uint32_t)(from.gr_level * multiplier + 0.5); |
| 80 | to.level_r = (uint32_t)(from.r_level * multiplier + 0.5); |
| 81 | to.level_b = (uint32_t)(from.b_level * multiplier + 0.5); |
| 82 | to.level_gb = (uint32_t)(from.gb_level * multiplier + 0.5); |
| 83 | |
| 84 | return XCAM_RETURN_NO_ERROR; |
| 85 | } |
| 86 | |
| 87 | XCamReturn |
| 88 | IspConfigTranslator::translate_color_matrix ( |
| 89 | const XCam3aResultColorMatrix &from, struct atomisp_cc_config &to) |
| 90 | { |
| 91 | double max_value = 0.0; |
| 92 | uint32_t interger_bits = 0; |
| 93 | double multiplier = 0.0; |
| 94 | bool have_minus = false; |
| 95 | uint32_t i = 0; |
| 96 | |
| 97 | for (i = 0; i < XCAM_COLOR_MATRIX_SIZE; ++i) { |
| 98 | if (fabs(from.matrix [i]) > max_value) |
| 99 | max_value = fabs(from.matrix [i]); |
| 100 | if (from.matrix [i] < 0) |
| 101 | have_minus = true; |
| 102 | } |
| 103 | interger_bits = _get_max_bits (max_value); |
| 104 | if (have_minus) |
| 105 | ++interger_bits; |
| 106 | |
| 107 | XCAM_ASSERT (interger_bits < 13); |
| 108 | to.fraction_bits = 13 - interger_bits; |
| 109 | multiplier = (double)(1 << (13 - interger_bits)); |
| 110 | for (i = 0; i < XCAM_COLOR_MATRIX_SIZE; ++i) { |
| 111 | to.matrix[i] = (int32_t)(from.matrix [i] * multiplier); |
| 112 | } |
| 113 | return XCAM_RETURN_NO_ERROR; |
| 114 | } |
| 115 | |
| 116 | |
| 117 | XCamReturn |
| 118 | IspConfigTranslator::translate_exposure ( |
| 119 | const XCam3aResultExposure &from, |
| 120 | struct atomisp_exposure &to) |
| 121 | { |
| 122 | uint32_t coarse_time = 0, fine_time = 0; |
| 123 | int32_t analog_code = 0, digital_code = 0; |
| 124 | if (!_sensor->is_ready ()) { |
| 125 | XCAM_LOG_WARNING ("translate exposure failed since sensor not ready"); |
| 126 | return XCAM_RETURN_ERROR_SENSOR; |
| 127 | } |
| 128 | if (!_sensor->exposure_time_to_integration (from.exposure_time, coarse_time, fine_time)) { |
| 129 | XCAM_LOG_WARNING ("translate exposure time failed"); |
| 130 | return XCAM_RETURN_ERROR_SENSOR; |
| 131 | } |
| 132 | to.integration_time[0] = coarse_time; |
| 133 | to.integration_time[1] = fine_time; |
| 134 | |
| 135 | if (!_sensor->exposure_gain_to_code (from.analog_gain, from.digital_gain, analog_code, digital_code)) { |
| 136 | XCAM_LOG_WARNING ("translate exposure gain failed"); |
| 137 | return XCAM_RETURN_ERROR_SENSOR; |
| 138 | } |
| 139 | to.gain[0] = analog_code; |
| 140 | to.gain[1] = digital_code; |
| 141 | return XCAM_RETURN_NO_ERROR; |
| 142 | } |
| 143 | |
| 144 | }; |