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# gdalwarpkernel_opencl.h

    00001 /******************************************************************************
    00002  * $Id: gdalwarpkernel_opencl.h 21223 2010-12-08 20:40:33Z rouault $
    00003  *
    00004  * Project:  OpenCL Image Reprojector
    00005  * Purpose:  Implementation of the GDALWarpKernel reprojector in OpenCL.
    00006  * Author:   Seth Price, seth@pricepages.org
    00007  *
    00008  ******************************************************************************
    00009  * Copyright (c) 2010, Seth Price <seth@pricepages.org>
    00010  *
    00011  * Permission is hereby granted, free of charge, to any person obtaining a
    00012  * copy of this software and associated documentation files (the "Software"),
    00013  * to deal in the Software without restriction, including without limitation
    00014  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
    00015  * and/or sell copies of the Software, and to permit persons to whom the
    00016  * Software is furnished to do so, subject to the following conditions:
    00017  *
    00018  * The above copyright notice and this permission notice shall be included
    00019  * in all copies or substantial portions of the Software.
    00020  *
    00021  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
    00022  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
    00023  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
    00024  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
    00025  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
    00026  * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
    00027  * DEALINGS IN THE SOFTWARE.
    00028  ****************************************************************************/
    00029
    00030 #if defined(HAVE_OPENCL)
    00031
    00032 /* The following relates to the profiling calls to
    00033    clSetCommandQueueProperty() which are not available by default
    00034    with some OpenCL implementation (ie. ATI) */
    00035
    00036 #define CL_USE_DEPRECATED_OPENCL_1_0_APIS
    00037
    00038 #ifdef __APPLE__
    00039 #include <OpenCL/OpenCL.h>
    00040 #else
    00041 #include <CL/opencl.h>
    00042 #endif
    00043
    00044 #ifdef __cplusplus /* If this is a C++ compiler, use C linkage */
    00045 extern "C" {
    00046 #endif
    00047
    00048 typedef enum {
    00049     OCL_Bilinear=10,
    00050     OCL_Cubic=11,
    00051     OCL_CubicSpline=12,
    00052     OCL_Lanczos=13
    00053 } OCLResampAlg;
    00054
    00055 struct oclWarper {
    00056     cl_command_queue queue;
    00057     cl_context context;
    00058     cl_device_id dev;
    00059     cl_kernel kern1;
    00060     cl_kernel kern4;
    00061
    00062     int srcWidth;
    00063     int srcHeight;
    00064     int dstWidth;
    00065     int dstHeight;
    00066
    00067     int useUnifiedSrcDensity;
    00068     int useUnifiedSrcValid;
    00069     int useDstDensity;
    00070     int useDstValid;
    00071
    00072     int numBands;
    00073     int numImages;
    00074     OCLResampAlg resampAlg;
    00075
    00076     cl_channel_type imageFormat;
    00077     cl_mem *realWorkCL;
    00078     union {
    00079         void **v;
    00080         char **c;
    00081         unsigned char **uc;
    00082         short **s;
    00083         unsigned short **us;
    00084         float **f;
    00085     } realWork;
    00086
    00087     cl_mem *imagWorkCL;
    00088     union {
    00089         void **v;
    00090         char **c;
    00091         unsigned char **uc;
    00092         short **s;
    00093         unsigned short **us;
    00094         float **f;
    00095     } imagWork;
    00096
    00097     cl_mem *dstRealWorkCL;
    00098     union {
    00099         void **v;
    00100         char **c;
    00101         unsigned char **uc;
    00102         short **s;
    00103         unsigned short **us;
    00104         float **f;
    00105     } dstRealWork;
    00106
    00107     cl_mem *dstImagWorkCL;
    00108     union {
    00109         void **v;
    00110         char **c;
    00111         unsigned char **uc;
    00112         short **s;
    00113         unsigned short **us;
    00114         float **f;
    00115     } dstImagWork;
    00116
    00117     unsigned int imgChSize1;
    00118     cl_channel_order imgChOrder1;
    00119     unsigned int imgChSize4;
    00120     cl_channel_order imgChOrder4;
    00121         char    useVec;
    00122
    00123     cl_mem useBandSrcValidCL;
    00124     char *useBandSrcValid;
    00125
    00126     cl_mem nBandSrcValidCL;
    00127     float *nBandSrcValid;
    00128
    00129     cl_mem xyWorkCL;
    00130     float *xyWork;
    00131
    00132     int xyWidth;
    00133     int xyHeight;
    00134     int coordMult;
    00135
    00136     unsigned int xyChSize;
    00137     cl_channel_order xyChOrder;
    00138
    00139     cl_mem fDstNoDataRealCL;
    00140     float *fDstNoDataReal;
    00141
    00142     int bIsATI;
    00143 };
    00144
    00145 struct oclWarper* GDALWarpKernelOpenCL_createEnv(int srcWidth, int srcHeight,
    00146                                                  int dstWidth, int dstHeight,
    00147                                                  cl_channel_type imageFormat,
    00148                                                  int numBands, int coordMult,
    00149                                                  int useImag, int useBandSrcValid,
    00150                                                  float *fDstDensity,
    00151                                                  double *dfDstNoDataReal,
    00152                                                  OCLResampAlg resampAlg, cl_int *envErr);
    00153
    00154 cl_int GDALWarpKernelOpenCL_setSrcValid(struct oclWarper *warper,
    00155                                         int *bandSrcValid, int bandNum);
    00156
    00157 cl_int GDALWarpKernelOpenCL_setSrcImg(struct oclWarper *warper, void *imgData,
    00158                                       int bandNum);
    00159
    00160 cl_int GDALWarpKernelOpenCL_setDstImg(struct oclWarper *warper, void *imgData,
    00161                                       int bandNum);
    00162
    00163 cl_int GDALWarpKernelOpenCL_setCoordRow(struct oclWarper *warper,
    00164                                         double *rowSrcX, double *rowSrcY,
    00165                                         double srcXOff, double srcYOff,
    00166                                         int *success, int rowNum);
    00167
    00168 cl_int GDALWarpKernelOpenCL_runResamp(struct oclWarper *warper,
    00169                                       float *unifiedSrcDensity,
    00170                                       unsigned int *unifiedSrcValid,
    00171                                       float *dstDensity,
    00172                                       unsigned int *dstValid,
    00173                                       double dfXScale, double dfYScale,
    00174                                       double dfXFilter, double dfYFilter,
    00175                                       int nXRadius, int nYRadius,
    00176                                       int nFiltInitX, int nFiltInitY);
    00177
    00178 cl_int GDALWarpKernelOpenCL_getRow(struct oclWarper *warper,
    00179                                    void **rowReal, void **rowImag,
    00180                                    int rowNum, int bandNum);
    00181
    00182 cl_int GDALWarpKernelOpenCL_deleteEnv(struct oclWarper *warper);
    00183
    00184 #ifdef __cplusplus /* If this is a C++ compiler, end C linkage */
    00185 }
    00186 #endif
    00187
    00188 #endif /* defined(HAVE_OPENCL) */
    00189

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