--- /dev/null
+/*
+ * Copyright 2012 Google Inc.
+ *
+ * Use of this source code is governed by a BSD-style license that can be
+ * found in the LICENSE file.
+ */
+
+
+#include "SkBitmap.h"
+#include "SkCanvas.h"
+#include "SkColorPriv.h"
+#include "SkImageEncoder.h"
+#include "SkOSFile.h"
+#include "SkPicture.h"
+#include "SkStream.h"
+#include "SkString.h"
+
+
+static void usage(const char* argv0) {
+ SkDebugf("SkPicture rendering tool\n");
+ SkDebugf("\n"
+"Usage: \n"
+" %s <inputDir> <outputDir> \n\n"
+, argv0);
+ SkDebugf(
+" inputDir: directory to read the serialized SkPicture files.\n");
+ SkDebugf(
+" outputDir: directory to write the rendered images.\n");
+}
+
+static void make_filepath(SkString* path, const char* dir,
+ const SkString& name) {
+ size_t len = strlen(dir);
+ path->set(dir);
+ if (0 < len && '/' != dir[len - 1]) {
+ path->append("/");
+ }
+ path->append(name);
+}
+
+static void open_picture_stream(const char* inputDir,
+ const SkString& inputFilename,
+ SkFILEStream* inputStream) {
+ SkString inputPath;
+ make_filepath(&inputPath, inputDir, inputFilename);
+ inputStream->setPath(inputPath.c_str());
+ if (!inputStream->isValid()) {
+ SkDebugf("Could not open file %s\n", inputPath.c_str());
+ }
+}
+
+static void make_output_filepath(SkString* path, const char* dir,
+ const SkString& name) {
+ make_filepath(path, dir, name);
+ path->remove(path->size() - 3, 3);
+ path->append("png");
+}
+
+static void setup_bitmap(SkPicture& picture, SkBitmap* bitmap) {
+ bitmap->setConfig(SkBitmap::kARGB_8888_Config, picture.width(),
+ picture.height());
+ bitmap->allocPixels();
+ bitmap->eraseColor(0);
+}
+
+static void generate_image_from_picture(SkPicture& pict, SkBitmap* bitmap) {
+ setup_bitmap(pict, bitmap);
+ SkCanvas canvas(*bitmap);
+ canvas.drawPicture(pict);
+}
+
+/* since PNG insists on unpremultiplying our alpha, we take no precision chances
+ and force all pixels to be 100% opaque, otherwise on compare we may not get
+ a perfect match.
+ */
+static void force_all_opaque(const SkBitmap& bitmap) {
+ SkAutoLockPixels lock(bitmap);
+ for (int y = 0; y < bitmap.height(); y++) {
+ for (int x = 0; x < bitmap.width(); x++) {
+ *bitmap.getAddr32(x, y) |= (SK_A32_MASK << SK_A32_SHIFT);
+ }
+ }
+}
+
+static bool write_bitmap(const SkString& path, const SkBitmap& bitmap) {
+ SkBitmap copy;
+ bitmap.copyTo(©, SkBitmap::kARGB_8888_Config);
+ force_all_opaque(copy);
+ return SkImageEncoder::EncodeFile(path.c_str(), copy,
+ SkImageEncoder::kPNG_Type, 100);
+}
+
+static void write_output(const char* outputDir, const SkString& inputFilename,
+ const SkBitmap& bitmap) {
+ SkString outputPath;
+ make_output_filepath(&outputPath, outputDir, inputFilename);
+ bool isWritten = write_bitmap(outputPath, bitmap);
+ if (!isWritten) {
+ SkDebugf("Could not write to file %s\n", outputPath.c_str());
+ }
+}
+
+static void render_picture(const char* inputDir, const char* outputDir,
+ const SkString& inputFilename) {
+ SkFILEStream inputStream;
+ open_picture_stream(inputDir, inputFilename, &inputStream);
+ SkPicture picture(&inputStream);
+ SkBitmap bitmap;
+ generate_image_from_picture(picture, &bitmap);
+ write_output(outputDir, inputFilename, bitmap);
+}
+
+int main(int argc, char* const argv[]) {
+ const char* inputDir;
+ const char* outputDir;
+ if (argc != 3) {
+ usage(argv[0]);
+ }
+
+ inputDir = argv[1];
+ outputDir = argv[2];
+
+ SkOSFile::Iter iter(inputDir, "skp");
+ SkString inputFilename;
+
+ while(iter.next(&inputFilename)) {
+ render_picture(inputDir, outputDir, inputFilename);
+ }
+}
--- /dev/null
+'''
+Compares the rendererings of serialized SkPictures to expected images.
+
+Launch with --help to see more information.
+
+
+Copyright 2012 Google Inc.
+
+Use of this source code is governed by a BSD-style license that can be
+found in the LICENSE file.
+'''
+# common Python modules
+import os
+import optparse
+import sys
+import shutil
+import tempfile
+
+USAGE_STRING = 'Usage: %s inputDir expectedDir [renderDir [diffDir]]'
+HELP_STRING = '''
+
+Compares the renderings of serialized SkPicture files in inputDir with the
+images in expectedDir.
+'''
+
+def RunCommand(command):
+ """Run a command.
+
+ @param command the command as a single string
+ """
+ print 'running command [%s]...' % command
+ os.system(command)
+
+
+def FindPathToProgram(program):
+ """Return path to an existing program binary, or raise an exception if we
+ cannot find one.
+
+ @param program the name of the program that is being looked for
+ """
+ trunk_path = os.path.abspath(os.path.join(os.path.dirname(__file__),
+ os.pardir))
+ possible_paths = [os.path.join(trunk_path, 'out', 'Release', program),
+ os.path.join(trunk_path, 'out', 'Debug', program)]
+ for try_path in possible_paths:
+ if os.path.isfile(try_path):
+ return try_path
+ raise Exception('cannot find %s in paths %s; maybe you need to '
+ 'build %s?' % (program, possible_paths, program))
+
+
+def RenderImages(input_dir, render_dir):
+ """Renders the serialized SkPictures.
+
+ Uses the render_pictures program to do the rendering.
+
+ @param input_dir the location to read the serlialized SkPictures
+ @param render_dir the location to write out the rendered images
+ """
+ renderer_path = FindPathToProgram('render_pictures')
+ RunCommand('%s %s %s' % (renderer_path, input_dir, render_dir))
+
+
+def DiffImages(expected_dir, comparison_dir, diff_dir):
+ """Diffs the rendered SkPicture images with the baseline images.
+
+ Uses the skdiff program to do the diffing.
+
+ @param expected_dir the location of the baseline images.
+ @param comparison_dir the location of the images to comapre with the
+ baseline
+ @param diff_dir the location to write out the diff results
+ """
+ skdiff_path = FindPathToProgram('skdiff')
+ RunCommand('%s %s %s %s' %
+ (skdiff_path, expected_dir, comparison_dir, diff_dir))
+
+
+def Cleanup(options, render_dir, diff_dir):
+ """Deletes any temporary folders and files created.
+
+ @param options The OptionParser object that parsed if render_dir or diff_dir
+ was set
+ @param render_dir the directory where the rendered images were written
+ @param diff_dir the directory where the diff results were written
+ """
+ if (not options.render_dir):
+ if (os.path.isdir(render_dir)):
+ shutil.rmtree(render_dir)
+ if (not options.diff_dir):
+ if (os.path.isdir(diff_dir)):
+ shutil.rmtree(diff_dir)
+
+
+def Main(args):
+ """Allow other scripts to call this script with fake command-line args.
+
+ @param The commandline argument list
+ """
+ parser = optparse.OptionParser(USAGE_STRING % '%prog' + HELP_STRING)
+ parser.add_option('--render_dir', dest='render_dir',
+ help = ("specify the location to output the rendered files."
+ " Default is a temp directory."))
+ parser.add_option('--diff_dir', dest='diff_dir',
+ help = ("specify the location to output the diff files."
+ " Default is a temp directory."))
+
+ options, arguments = parser.parse_args(args)
+
+ input_dir = arguments[1]
+ expected_dir = arguments[2]
+
+ if (options.render_dir):
+ render_dir = options.render_dir
+ else:
+ render_dir = tempfile.mkdtemp()
+
+ if (options.diff_dir):
+ diff_dir = options.diff_dir
+ else:
+ diff_dir = tempfile.mkdtemp()
+
+ try:
+ RenderImages(input_dir, render_dir)
+ DiffImages(expected_dir, render_dir, diff_dir)
+ finally:
+ Cleanup(options, render_dir, diff_dir)
+
+if __name__ == '__main__':
+ Main(sys.argv)
projects / platform / upstream / libSkiaSharp.git / commitdiff