1 /*
2 * Copyright 2005-2018 ECMWF.
3 *
4 * This software is licensed under the terms of the Apache Licence Version 2.0
5 * which can be obtained at http://www.apache.org/licenses/LICENSE-2.0.
6 *
7 * In applying this licence, ECMWF does not waive the privileges and immunities granted to it by
8 * virtue of its status as an intergovernmental organisation nor does it submit to any jurisdiction.
9 */
10
11 #include "grib_api_internal.h"
12
13 #if GRIB_TIMER
14
usage(char * prog)15 void usage(char* prog) {
16 printf("usage: %s [-a outfile | -w outfile ] grib_file repetitions bitsPerValue\n",prog);
17 exit(1);
18 }
19
grib_handle_write(grib_handle * h,char * filename)20 size_t grib_handle_write(grib_handle* h,char* filename) {
21 FILE* of=NULL;
22 const void *buffer; size_t size;
23
24 of = fopen(filename,"w");
25 if(!of) {
26 perror(filename);
27 exit(1);
28 }
29 GRIB_CHECK(grib_get_message(h,&buffer,&size),0);
30 if(fwrite(buffer,1,size,of) != size) {
31 perror(filename);
32 exit(1);
33 }
34 fclose(of);
35
36 return size;
37
38 }
39
print_timer(grib_timer * t,int repeat)40 static void print_timer(grib_timer* t,int repeat) {
41 printf("%s : %g cpu\n",t->name_,t->timer_/repeat);
42 }
43
main(int argc,char * argv[])44 int main(int argc, char* argv[]) {
45 grib_handle *h=NULL;
46 grib_context* c=NULL;
47 FILE* fin=NULL;
48 FILE* fout=NULL;
49 char* finname;
50 char* ofilename;
51 char defofilename[]="png_perf.out";
52 double *values=NULL;
53 int append=0;
54 size_t nvalues=0;
55 int count,e=0;
56 int repeatpng=1;
57 int repeatsimple=1;
58 grib_timer *tes,*tds,*tej,*tdj;
59 char grid_png[]="grid_png";
60 size_t grid_png_l=strlen(grid_png);
61 char grid_simple[]="grid_simple";
62 size_t grid_simple_l=strlen(grid_simple);
63 char packingType[50]={0,};
64 size_t len=50;
65 char param[50]={0,};
66 char gridType[50]={0,};
67 char outfilename[255]={0,};
68 size_t filesize_png=0;
69 size_t filesize_simple=0;
70 double perc=0;
71 long bitsPerValue=0;
72 int iarg=1;
73 char grid[20]={0,};
74 char shortName[20]={0,};
75 long level;
76 char levelType[20]={0,};
77
78 tes=grib_get_timer(0,"encoding simple", 0, 0);
79 tds=grib_get_timer(0,"decoding simple", 0, 0);
80 tej=grib_get_timer(0,"encoding png", 0, 0);
81 tdj=grib_get_timer(0,"decoding png", 0, 0);
82
83 if (argc != 4 && argc != 6 ) usage(argv[0]);
84 if (!strcmp(argv[iarg],"-w")) {
85 append=0;
86 iarg++;
87 ofilename=argv[iarg];
88 iarg++;
89 } else if (!strcmp(argv[iarg],"-a")) {
90 append=1;
91 iarg++;
92 ofilename=argv[iarg];
93 iarg++;
94 } else {
95 append=0;
96 ofilename=defofilename;
97 }
98 finname=argv[iarg++];
99 repeatsimple=atoi(argv[iarg++]);
100 bitsPerValue=atoi(argv[iarg++]);
101
102 fin = fopen(finname,"r");
103 if(!fin) {perror(finname);exit(1);}
104
105 if (append)
106 fout = fopen(ofilename,"a");
107 else
108 fout = fopen(ofilename,"w");
109
110 if(!fout) {perror(ofilename);exit(1);}
111
112 c=grib_context_get_default();
113 e=0;
114 h=grib_handle_new_from_file(c,fin,&e);
115 fclose(fin);
116
117 GRIB_CHECK(e,0);
118
119 len=50;
120 grib_get_string(h,"shortName",param,&len);
121
122 len=20;
123 grib_get_string(h,"levelType",levelType,&len);
124
125 if (!strcmp(levelType,"pl")) {
126 GRIB_CHECK(grib_get_long(h,"level",&level),0);
127 sprintf(shortName,"%s%ld",param,level);
128 } else {
129 sprintf(shortName,"%s",param);
130 }
131
132
133 grib_set_long(h,"editionNumber",2);
134 GRIB_CHECK(grib_get_size(h,"values",&nvalues),0);
135 values=(double*)grib_context_malloc(c,sizeof(double)*nvalues);
136 if (!values) { printf("%s: memory allocation error\n",argv[0]); exit(1); }
137
138 len=50;
139 grib_get_string(h,"gridType",gridType,&len);
140
141 len=50;
142 grib_get_string(h,"packingType",packingType,&len);
143
144 GRIB_CHECK(grib_get_double_array(h,"values",values,&nvalues),0);
145 grib_set_long(h,"bitsPerValue",bitsPerValue);
146 GRIB_CHECK(grib_set_double_array(h,"values",values,nvalues),0);
147
148 printf("--------------------------------\n");
149 printf("- %s - gridType=%s packingType=%s numberOfValues=%ld bitsPerValue=%ld\n",
150 param,gridType,packingType,(long)nvalues,bitsPerValue);
151
152 if (!strcmp(packingType,"spectral_complex") || !strcmp(packingType,"spectral_simple")) {
153 printf("unable to process spectral data\n");
154 exit(1);
155 }
156
157 if (!strcmp(gridType,"reduced_gg") || !strcmp(gridType,"regular_gg")) {
158 long N;
159 grib_get_long(h,"N",&N);
160 printf(" N=%ld\n",N);
161 sprintf(grid,"%ld",N);
162 }
163 if (!strcmp(gridType,"regular_ll")) {
164 double Di,Dj;
165 grib_get_double(h,"DiInDegrees",&Di);
166 grib_get_double(h,"DjInDegrees",&Dj);
167 printf(" Di=%g Dj=%g\n",Di,Dj);
168 sprintf(grid,"%g/%g",Di,Dj);
169 }
170
171
172 if (!append)
173 fprintf(fout,
174 "shortName gridType numberOfValues bitsPerValue grid sizeSimple sizepng encodepng encodeSimple decodepng decodeSimple\n");
175
176 /* decode values grid_simple */
177 if (strcmp(packingType,grid_simple))
178 grib_set_string(h,"packingType",grid_simple,&grid_simple_l);
179 /* printf("decoding simple\n"); */
180 grib_timer_start(tds);
181 for (count=0;count<repeatsimple;count++)
182 GRIB_CHECK(grib_get_double_array(h,"values",values,&nvalues),0);
183 grib_timer_stop(tds,0);
184 /* printf("%d messages decoded\n\n",count); */
185
186 *outfilename='\0';
187 sprintf(outfilename,"%s_%s_%ld_simple.grib2",param,gridType,bitsPerValue);
188 filesize_simple=grib_handle_write(h,outfilename);
189 printf("file size simple = %ld\n",(long)filesize_simple);
190
191 /* encode values grid_simple*/
192 /* printf("encoding simple\n"); */
193 grib_timer_start(tes);
194 for (count=0;count<repeatsimple;count++)
195 GRIB_CHECK(grib_set_double_array(h,"values",values,nvalues),0);
196 grib_timer_stop(tes,0);
197 /* printf("%d messages encoded \n\n",count); */
198
199 /* decode values grid_png */
200 grib_set_string(h,"packingType",grid_png,&grid_png_l);
201 /* printf("decoding png\n"); */
202 grib_timer_start(tdj);
203 for (count=0;count<repeatpng;count++)
204 GRIB_CHECK(grib_get_double_array(h,"values",values,&nvalues),0);
205 grib_timer_stop(tdj,0);
206 /* printf("%d messages decoded\n\n",count); */
207
208 *outfilename='\0';
209 sprintf(outfilename,"%s_%s_%ld_png.grib2",param,gridType,bitsPerValue);
210 filesize_png=grib_handle_write(h,outfilename);
211 printf("file size png = %ld\n",(long)filesize_png);
212
213 perc=(double)filesize_simple/(double)filesize_png;
214
215 printf("compression ratio = %g \n",perc);
216 printf("space savings = %g \n",(1.0-1.0/perc)*100);
217
218 /* encode values grid_png*/
219 /* printf("encoding png\n"); */
220 grib_timer_start(tej);
221 for (count=0;count<repeatpng;count++)
222 GRIB_CHECK(grib_set_double_array(h,"values",values,nvalues),0);
223 grib_timer_stop(tej,0);
224 /* printf("%d messages encoded \n\n",count); */
225
226 grib_handle_delete(h);
227 grib_context_free(c,values);
228
229 print_timer(tej,repeatpng);
230 print_timer(tdj,repeatpng);
231 print_timer(tes,repeatsimple);
232 print_timer(tds,repeatsimple);
233 printf("--------------------------------\n\n");
234 fprintf(fout,"%s %s %ld %ld %s %ld %ld %g %g %g %g\n",
235 shortName,gridType,(long)nvalues,bitsPerValue,
236 grid,(long)filesize_simple,(long)filesize_png,tej->timer_/repeatpng,tes->timer_/repeatsimple,tdj->timer_/repeatpng,tds->timer_/repeatsimple);
237
238 return 0;
239 }
240 #else
241
main(int argc,char * argv[])242 int main(int argc,char* argv[]) {
243 return 0;
244 }
245
246 #endif
247
248