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# gdalwarpkernel_opencl.h

    00001 /******************************************************************************
    00002  * $Id: gdalwarpkernel_opencl.h 25068 2012-10-07 14:01:47Z 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 #if defined(DEBUG_OPENCL) && DEBUG_OPENCL == 1
    00037 #define CL_USE_DEPRECATED_OPENCL_1_0_APIS
    00038 #endif
    00039
    00040 #ifdef __APPLE__
    00041 #include <OpenCL/OpenCL.h>
    00042 #else
    00043 #include <CL/opencl.h>
    00044 #endif
    00045
    00046 #ifdef __cplusplus /* If this is a C++ compiler, use C linkage */
    00047 extern "C" {
    00048 #endif
    00049
    00050 typedef enum {
    00051     OCL_Bilinear=10,
    00052     OCL_Cubic=11,
    00053     OCL_CubicSpline=12,
    00054     OCL_Lanczos=13
    00055 } OCLResampAlg;
    00056
    00057 typedef enum
    00058 {
    00059     VENDOR_OTHER,
    00060     VENDOR_AMD,
    00061     VENDOR_INTEL
    00062 } OCLVendor;
    00063
    00064 struct oclWarper {
    00065     cl_command_queue queue;
    00066     cl_context context;
    00067     cl_device_id dev;
    00068     cl_kernel kern1;
    00069     cl_kernel kern4;
    00070
    00071     int srcWidth;
    00072     int srcHeight;
    00073     int dstWidth;
    00074     int dstHeight;
    00075
    00076     int useUnifiedSrcDensity;
    00077     int useUnifiedSrcValid;
    00078     int useDstDensity;
    00079     int useDstValid;
    00080
    00081     int numBands;
    00082     int numImages;
    00083     OCLResampAlg resampAlg;
    00084
    00085     cl_channel_type imageFormat;
    00086     cl_mem *realWorkCL;
    00087     union {
    00088         void **v;
    00089         char **c;
    00090         unsigned char **uc;
    00091         short **s;
    00092         unsigned short **us;
    00093         float **f;
    00094     } realWork;
    00095
    00096     cl_mem *imagWorkCL;
    00097     union {
    00098         void **v;
    00099         char **c;
    00100         unsigned char **uc;
    00101         short **s;
    00102         unsigned short **us;
    00103         float **f;
    00104     } imagWork;
    00105
    00106     cl_mem *dstRealWorkCL;
    00107     union {
    00108         void **v;
    00109         char **c;
    00110         unsigned char **uc;
    00111         short **s;
    00112         unsigned short **us;
    00113         float **f;
    00114     } dstRealWork;
    00115
    00116     cl_mem *dstImagWorkCL;
    00117     union {
    00118         void **v;
    00119         char **c;
    00120         unsigned char **uc;
    00121         short **s;
    00122         unsigned short **us;
    00123         float **f;
    00124     } dstImagWork;
    00125
    00126     unsigned int imgChSize1;
    00127     cl_channel_order imgChOrder1;
    00128     unsigned int imgChSize4;
    00129     cl_channel_order imgChOrder4;
    00130         char    useVec;
    00131
    00132     cl_mem useBandSrcValidCL;
    00133     char *useBandSrcValid;
    00134
    00135     cl_mem nBandSrcValidCL;
    00136     float *nBandSrcValid;
    00137
    00138     cl_mem xyWorkCL;
    00139     float *xyWork;
    00140
    00141     int xyWidth;
    00142     int xyHeight;
    00143     int coordMult;
    00144
    00145     unsigned int xyChSize;
    00146     cl_channel_order xyChOrder;
    00147
    00148     cl_mem fDstNoDataRealCL;
    00149     float *fDstNoDataReal;
    00150
    00151     OCLVendor eCLVendor;
    00152 };
    00153
    00154 struct oclWarper* GDALWarpKernelOpenCL_createEnv(int srcWidth, int srcHeight,
    00155                                                  int dstWidth, int dstHeight,
    00156                                                  cl_channel_type imageFormat,
    00157                                                  int numBands, int coordMult,
    00158                                                  int useImag, int useBandSrcValid,
    00159                                                  float *fDstDensity,
    00160                                                  double *dfDstNoDataReal,
    00161                                                  OCLResampAlg resampAlg, cl_int *envErr);
    00162
    00163 cl_int GDALWarpKernelOpenCL_setSrcValid(struct oclWarper *warper,
    00164                                         int *bandSrcValid, int bandNum);
    00165
    00166 cl_int GDALWarpKernelOpenCL_setSrcImg(struct oclWarper *warper, void *imgData,
    00167                                       int bandNum);
    00168
    00169 cl_int GDALWarpKernelOpenCL_setDstImg(struct oclWarper *warper, void *imgData,
    00170                                       int bandNum);
    00171
    00172 cl_int GDALWarpKernelOpenCL_setCoordRow(struct oclWarper *warper,
    00173                                         double *rowSrcX, double *rowSrcY,
    00174                                         double srcXOff, double srcYOff,
    00175                                         int *success, int rowNum);
    00176
    00177 cl_int GDALWarpKernelOpenCL_runResamp(struct oclWarper *warper,
    00178                                       float *unifiedSrcDensity,
    00179                                       unsigned int *unifiedSrcValid,
    00180                                       float *dstDensity,
    00181                                       unsigned int *dstValid,
    00182                                       double dfXScale, double dfYScale,
    00183                                       double dfXFilter, double dfYFilter,
    00184                                       int nXRadius, int nYRadius,
    00185                                       int nFiltInitX, int nFiltInitY);
    00186
    00187 cl_int GDALWarpKernelOpenCL_getRow(struct oclWarper *warper,
    00188                                    void **rowReal, void **rowImag,
    00189                                    int rowNum, int bandNum);
    00190
    00191 cl_int GDALWarpKernelOpenCL_deleteEnv(struct oclWarper *warper);
    00192
    00193 #ifdef __cplusplus /* If this is a C++ compiler, end C linkage */
    00194 }
    00195 #endif
    00196
    00197 #endif /* defined(HAVE_OPENCL) */
    00198

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