Add image/jpeg and image/png MIME support.

Add simple unit test runner.

README.md

@@ -78,3 +78,15 @@ if (!ret) {
 }
 ```
 
+## Running tests.
+
+### Setup
+
+Python 2.6 or 2.7 required.
+Git clone https://github.com/KhronosGroup/glTF to your local dir.
+
+### Run test
+
+After building `loader_test`, edit `test_runner.py`, then,
+
+    $ python test_runner.py

test_runner.py

@@ -0,0 +1,64 @@
+#!/usr/bin/env python
+
+# Assume python 2.6 or 2.7
+
+import glob
+import os
+import subprocess
+
+## Simple test runner.
+
+# -- config -----------------------
+
+# Absolute path pointing to your cloned git repo of https://github.com/KhronosGroup/glTF/sampleModels
+base_model_dir = "/Users/syoyo/work/glTF/sampleModels"
+
+kinds = [ "glTF", "glTF-Binary", "glTF-Embedded", "glTF-MaterialsCommon"]
+# ---------------------------------
+
+failed = []
+success = []
+
+def run(filename):
+
+    print("Testing: " + filename)
+    cmd = ["./loader_test", filename]
+    try:
+        p = subprocess.Popen(cmd, stdout=subprocess.PIPE, stderr=subprocess.PIPE)
+        (stdout, stderr) = p.communicate()
+    except:
+        print "Failed to execute: ", cmd
+        raise
+
+    if p.returncode != 0:
+        failed.append(filename)
+        print(stdout)
+        print(stderr)
+    else:
+        success.append(filename)
+
+
+def test():
+
+    for d in os.listdir(base_model_dir):
+        p = os.path.join(base_model_dir, d)
+        if os.path.isdir(p):
+            for k in kinds:
+                targetDir = os.path.join(p, k)
+                g = glob.glob(targetDir + "/*.gltf")
+                for gltf in g:
+                    run(gltf)
+
+
+def main():
+
+    test()
+
+    print("Success : {0}".format(len(success)))
+    print("Failed  : {0}".format(len(failed)))
+
+    for fail in failed:
+        print("FAIL: " + fail)
+
+if __name__ == '__main__':
+    main()

tiny_gltf_loader.h

@@ -511,26 +511,57 @@ bool IsDataURI(const std::string &in) {
   if (in.find(header) == 0) {
     return true;
   }
+
+  header = "data:image/png;base64,";
+  if (in.find(header) == 0) {
+    return true;
+  }
+
+  header = "data:image/jpeg;base64,";
+  if (in.find(header) == 0) {
+    return true;
+  }
+
   return false;
 }
 
 bool DecodeDataURI(std::vector<unsigned char> &out, const std::string &in,
                    size_t reqBytes, bool checkSize) {
   std::string header = "data:application/octet-stream;base64,";
+  std::string data;
   if (in.find(header) == 0) {
-    std::string data =
-        base64_decode(in.substr(header.size())); // cut mime string.
-    if (checkSize) {
-      if (data.size() != reqBytes) {
-        return false;
-      }
-      out.resize(reqBytes);
-    } else {
-      out.resize(data.size());
-    }
-    std::copy(data.begin(), data.end(), out.begin());
-    return true;
+    data = base64_decode(in.substr(header.size())); // cut mime string.
   }
+
+  if (data.empty()) {
+    header = "data:image/jpeg;base64,";
+    if (in.find(header) == 0) {
+      data = base64_decode(in.substr(header.size())); // cut mime string.
+    }
+  }
+
+  if (data.empty()) {
+    header = "data:image/png;base64,";
+    if (in.find(header) == 0) {
+      data = base64_decode(in.substr(header.size())); // cut mime string.
+    }
+  }
+
+  if (data.empty()) {
+    return false;
+  } 
+
+  if (checkSize) {
+    if (data.size() != reqBytes) {
+      return false;
+    }
+    out.resize(reqBytes);
+  } else {
+    out.resize(data.size());
+  }
+  std::copy(data.begin(), data.end(), out.begin());
+  return true;
+
   return false;
 }