Merge commit '638ecc4cde79b0296f2e04f683ca4cb881c28f36' as 'rtengine/libraw'

rtengine/libraw/RawSpeed3/rawspeed3_c_api/rawspeed3_capi_test.cpp

@@ -0,0 +1,71 @@
+#include "rawspeed3_capi.h"
+#include <fstream>
+#include <iostream>
+#include <vector>
+#include <stdint.h>
+
+
+
+std::vector<uint8_t> readfile(char *fn)
+{
+    std::ifstream is(fn,std::ifstream::binary);
+    if(is)
+    {
+      is.seekg(0, is.end);
+      size_t length = is.tellg();
+      is.seekg(0, is.beg);
+      std::vector<uint8_t> ret;
+      ret.resize(length+1);
+      is.read ((char*)ret.data(),length);
+      is.close();
+      ret[length] = 0; // zero terminated
+      std::cout << "File: " << fn << "  size:" << ret.size() << std::endl;
+      return ret;
+    }
+    else
+        return std::vector<uint8_t>();
+}
+
+
+int main(int ac, char *av[])
+{
+    if(ac < 2)
+    {
+        std::cout << "Usage: " << av[0] << " rawfile rawfile2 ...." << std::endl;
+        return 1;
+    }
+    rawspeed3_handle_t  handle = rawspeed3_initdefault();
+    if(!handle)
+    {
+      std::cerr << "Unable to init rs3" << std::endl;
+      return 2;
+    }
+
+    for(int i = 1; i < ac; i++)
+    {
+       std::vector<uint8_t> rawdata = readfile(av[i]);
+       if (rawdata.size() < 100) {
+         std::cerr << "Input file " << av[i] << " too small or nonexistent" << std::endl;
+         continue;
+       }
+       rawspeed3_ret_t result;
+       int q = rawspeed3_decodefile(handle, &result, rawdata.data(),
+                                    rawdata.size(), true);
+       if (q >= rawspeed3_ok && q <= rawspeed3_ok_warnings) {
+         std::cout << "File decoded code=" << result.status <<" width=" << result.width
+                   << " height=" << result.height 
+                   << " pitch=" << result.pitch
+                   << " filters=" << std::hex << result.filters << std::dec
+                   << " channels=" << result.cpp
+                   << " bpp=" << result.bpp
+                   << std::endl;
+       } else
+         std::cout << "RawSpeed wrapper error code:" << result.status
+                   << std::endl;
+
+       rawspeed3_release(handle);
+    }
+
+    rawspeed3_close(handle);
+
+}