117 lines
4.5 KiB
C++
117 lines
4.5 KiB
C++
/*
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* Copyright (c) 2017 - 2018, Intel Corporation
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included
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* in all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
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* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
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* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
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* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
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* OTHER DEALINGS IN THE SOFTWARE.
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*/
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#pragma once
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#include "runtime/helpers/basic_math.h"
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#include "CL/cl.h"
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#include <utility>
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namespace OCLRT {
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inline int32_t selectNormalizingFactor(const cl_channel_type &channelType) {
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if (channelType == CL_UNORM_INT8) {
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return 0xFF;
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}
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if (channelType == CL_SNORM_INT8) {
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return 0x7F;
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}
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if (channelType == CL_UNORM_INT16) {
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return 0xFFFF;
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}
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if (channelType == CL_SNORM_INT16) {
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return 0x7fFF;
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}
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return 0;
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}
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inline void convertFillColor(const void *fillColor,
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int32_t *iFillColor,
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const cl_image_format &oldImageFormat,
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const cl_image_format &newImageFormat) {
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float fFillColor[4] = {0.0f};
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for (auto i = 0; i < 4; i++) {
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iFillColor[i] = *((int32_t *)fillColor + i);
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fFillColor[i] = *((float *)fillColor + i);
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}
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if (oldImageFormat.image_channel_order == CL_A) {
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std::swap(iFillColor[0], iFillColor[3]);
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std::swap(fFillColor[0], fFillColor[3]);
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} else if (oldImageFormat.image_channel_order == CL_BGRA || oldImageFormat.image_channel_order == CL_sBGRA) {
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std::swap(iFillColor[0], iFillColor[2]);
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std::swap(fFillColor[0], fFillColor[2]);
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}
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if (oldImageFormat.image_channel_order == CL_sRGBA || oldImageFormat.image_channel_order == CL_sBGRA) {
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for (auto i = 0; i < 3; i++) {
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if (fFillColor[i] != fFillColor[i]) {
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fFillColor[i] = 0.0f;
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}
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if (fFillColor[i] > 1.0f) {
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fFillColor[i] = 1.0f;
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} else if (fFillColor[i] < 0.0f) {
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fFillColor[i] = 0.0f;
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} else if (fFillColor[i] < 0.0031308f) {
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fFillColor[i] = 12.92f * fFillColor[i];
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} else {
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fFillColor[i] = 1.055f * pow(fFillColor[i], 1.0f / 2.4f) - 0.055f;
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}
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}
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}
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if (newImageFormat.image_channel_data_type == CL_UNSIGNED_INT8) {
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auto normalizingFactor = selectNormalizingFactor(oldImageFormat.image_channel_data_type);
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if (normalizingFactor > 0) {
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for (auto i = 0; i < 4; i++) {
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if ((oldImageFormat.image_channel_order == CL_sRGBA || oldImageFormat.image_channel_order == CL_sBGRA) && i < 3) {
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iFillColor[i] = static_cast<int32_t>(normalizingFactor * fFillColor[i] + 0.5f);
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} else {
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iFillColor[i] = static_cast<int32_t>(normalizingFactor * fFillColor[i]);
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}
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}
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}
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for (auto i = 0; i < 4; i++) {
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iFillColor[i] = iFillColor[i] & 0xFF;
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}
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} else if (newImageFormat.image_channel_data_type == CL_UNSIGNED_INT16) {
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auto normalizingFactor = selectNormalizingFactor(oldImageFormat.image_channel_data_type);
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if (normalizingFactor > 0) {
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for (auto i = 0; i < 4; i++) {
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iFillColor[i] = static_cast<int32_t>(normalizingFactor * fFillColor[i]);
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}
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} else if (oldImageFormat.image_channel_data_type == CL_HALF_FLOAT) {
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//float to half convert.
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for (auto i = 0; i < 4; i++) {
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uint16_t temp = Math::float2Half(fFillColor[i]);
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iFillColor[i] = temp;
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}
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}
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for (auto i = 0; i < 4; i++) {
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iFillColor[i] = iFillColor[i] & 0xFFFF;
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}
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}
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}
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} // namespace OCLRT
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