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Diffstat (limited to 'silx/resources/opencl/image/cast.cl')
-rw-r--r-- | silx/resources/opencl/image/cast.cl | 181 |
1 files changed, 181 insertions, 0 deletions
diff --git a/silx/resources/opencl/image/cast.cl b/silx/resources/opencl/image/cast.cl new file mode 100644 index 0000000..9e23a82 --- /dev/null +++ b/silx/resources/opencl/image/cast.cl @@ -0,0 +1,181 @@ +/* + * Project: SILX: Alogorithms for image processing + * + * Copyright (C) 2013-2017 European Synchrotron Radiation Facility + * Grenoble, France + * + * Principal authors: J. Kieffer (kieffer@esrf.fr) + * + * Permission is hereby granted, free of charge, to any person + * obtaining a copy of this software and associated documentation + * files (the "Software"), to deal in the Software without + * restriction, including without limitation the rights to use, + * copy, modify, merge, publish, distribute, sublicense, and/or sell + * copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following + * conditions: + * + * The above copyright notice and this permission notice shall be + * included in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES + * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT + * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, + * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING + * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR + * OTHER DEALINGS IN THE SOFTWARE. + */ + +#ifndef NB_COLOR + #define NB_COLOR 1 +#endif + + +/** + * \brief Cast values of an array of uint8 into a float output array. + * + * :param array_input: Pointer to global memory with the input data as unsigned8 array + * :param array_float: Pointer to global memory with the output data as float array + * :param width: Width of the image + * :param height: Height of the image + */ +kernel void u8_to_float( global unsigned char *array_input, + global float *array_float, + const int width, + const int height) +{ + //Global memory guard for padding + if ((get_global_id(0) < width) && (get_global_id(1)<height)) + { + int i = NB_COLOR * (get_global_id(0) + width * get_global_id(1)); + for (int c=0; c<NB_COLOR; c++) + { + array_float[i + c] = (float) array_input[i + c]; + } //end loop over colors + } //end test in image +} //end kernel + +/** + * \brief Cast values of an array of uint8 into a float output array. + * + * :param array_input: Pointer to global memory with the input data as signed8 array + * :param array_float: Pointer to global memory with the output data as float array + * :param width: Width of the image + * :param height: Height of the image + */ +kernel void s8_to_float( global char *array_input, + global float *array_float, + const int width, + const int height) +{ + //Global memory guard for padding + if ((get_global_id(0) < width) && (get_global_id(1)<height)) + { + int i = NB_COLOR * (get_global_id(0) + width * get_global_id(1)); + for (int c=0; c<NB_COLOR; c++) + { + array_float[i + c] = (float) array_input[i + c]; + } //end loop over colors + } //end test in image +} //end kernel + + +/** + * \brief cast values of an array of uint16 into a float output array. + * + * :param array_input: Pointer to global memory with the input data as unsigned16 array + * :param array_float: Pointer to global memory with the output data as float array + * :param width: Width of the image + * :param height: Height of the image + */ +kernel void u16_to_float(global unsigned short *array_input, + global float *array_float, + const int width, + const int height) +{ + //Global memory guard for padding + if ((get_global_id(0) < width) && (get_global_id(1)<height)) + { + int i = NB_COLOR * (get_global_id(0) + width * get_global_id(1)); + for (int c=0; c<NB_COLOR; c++) + { + array_float[i + c] = (float) array_input[i + c]; + } //end loop over colors + } //end test in image +} //end kernel + +/** + * \brief cast values of an array of int16 into a float output array. + * + * :param array_input: Pointer to global memory with the input data as signed16 array + * :param array_float: Pointer to global memory with the output data as float array + * :param width: Width of the image + * :param height: Height of the image + */ +kernel void s16_to_float(global short *array_input, + global float *array_float, + const int width, + const int height) +{ + //Global memory guard for padding + if ((get_global_id(0) < width) && (get_global_id(1)<height)) + { + int i = NB_COLOR * (get_global_id(0) + width * get_global_id(1)); + for (int c=0; c<NB_COLOR; c++) + { + array_float[i + c] = (float) array_input[i + c]; + } //end loop over colors + } //end test in image +}//end kernel + +/** + * \brief cast values of an array of uint32 into a float output array. + * + * :param array_input: Pointer to global memory with the input data as unsigned32 array + * :param array_float: Pointer to global memory with the output data as float array + * :param width: Width of the image + * :param height: Height of the image + */ +kernel void u32_to_float(global unsigned int *array_input, + global float *array_float, + const int width, + const int height) +{ + //Global memory guard for padding + if ((get_global_id(0) < width) && (get_global_id(1)<height)) + { + int i = NB_COLOR * (get_global_id(0) + width * get_global_id(1)); + for (int c=0; c<NB_COLOR; c++) + { + array_float[i + c] = (float) array_input[i + c]; + } //end loop over colors + } //end test in image +}//end kernel + + +/** + * \brief convert values of an array of int32 into a float output array. + * + * :param array_input: Pointer to global memory with the data in int + * :param array_float: Pointer to global memory with the data in float + * :param width: Width of the image + * :param height: Height of the image + */ +kernel void s32_to_float(global int *array_input, + global float *array_float, + const int width, + const int height) +{ + //Global memory guard for padding + if ((get_global_id(0) < width) && (get_global_id(1)<height)) + { + int i = NB_COLOR * (get_global_id(0) + width * get_global_id(1)); + for (int c=0; c<NB_COLOR; c++) + { + array_float[i + c] = (float) array_input[i + c]; + } //end loop over colors + } //end test in image +}//end kernel + |