Added Caching for PreProcessed PNGs

Added a cache management system for pre-processed PNG files
along with unit tests. The cache system will be used if
the --no-crunch flag is passed to AAPT during the package
phase. The cache can be updated by a call to 'aapt crunch'
(see usage statement). Also put in benchmarking code.

Change-Id: I58271fb2ee2f5f9075fd74d4ff6f15e7afabd05c

1 files changed, 20 insertions, 1 deletions

diff --git a/tools/aapt/Main.cpp b/tools/aapt/Main.cpp
index 9887268abd7e..5135787050f9 100644
--- a/tools/aapt/Main.cpp
+++ b/tools/aapt/Main.cpp
@@ -83,6 +83,9 @@ void usage(void)
         " %s a[dd] [-v] file.{zip,jar,apk} file1 [file2 ...]\n"
         "   Add specified files to Zip-compatible archive.\n\n", gProgName);
     fprintf(stderr,
+        " %s c[runch] [-v] -S resource-sources ... -C output-folder ...\n"
+        "   Do PNG preprocessing and store the results in output folder.\n\n", gProgName);
+    fprintf(stderr,
         " %s v[ersion]\n"
         "   Print program version.\n\n", gProgName);
     fprintf(stderr,
@@ -190,6 +193,7 @@ int handleCommand(Bundle* bundle)
     case kCommandAdd:       return doAdd(bundle);
     case kCommandRemove:    return doRemove(bundle);
     case kCommandPackage:   return doPackage(bundle);
+    case kCommandCrunch:    return doCrunch(bundle);
     default:
         fprintf(stderr, "%s: requested command not yet supported\n", gProgName);
         return 1;
@@ -227,6 +231,8 @@ int main(int argc, char* const argv[])
         bundle.setCommand(kCommandRemove);
     else if (argv[1][0] == 'p')
         bundle.setCommand(kCommandPackage);
+    else if (argv[1][0] == 'c')
+        bundle.setCommand(kCommandCrunch);
     else {
         fprintf(stderr, "ERROR: Unknown command '%s'\n", argv[1]);
         wantUsage = true;
@@ -397,6 +403,17 @@ int main(int argc, char* const argv[])
                 convertPath(argv[0]);
                 bundle.addResourceSourceDir(argv[0]);
                 break;
+            case 'C':
+                argc--;
+                argv++;
+                if (!argc) {
+                    fprintf(stderr, "ERROR: No argument supplied for '-C' option\n");
+                    wantUsage = true;
+                    goto bail;
+                }
+                convertPath(argv[0]);
+                bundle.setCrunchedOutputDir(argv[0]);
+                break;
             case '0':
                 argc--;
                 argv++;
@@ -523,7 +540,9 @@ int main(int argc, char* const argv[])
                     bundle.setProduct(argv[0]);
                 } else if (strcmp(cp, "-non-constant-id") == 0) {
                     bundle.setNonConstantId(true);
-                } else {
+                } else if (strcmp(cp, "-no-crunch") == 0) {
+                    bundle.setUseCrunchCache(true);
+                }else {
                     fprintf(stderr, "ERROR: Unknown option '-%s'\n", cp);
                     wantUsage = true;
                     goto bail;