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modules/graphics/src/test/java/com/sun/javafx/iio/ImageLoaderScalingTest.java

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*** 29,38 **** --- 29,39 ---- import java.awt.image.BufferedImage; import java.io.ByteArrayInputStream; import java.io.IOException; import java.io.InputStream; import static org.junit.Assert.*; + import org.junit.Ignore; import org.junit.Test; public class ImageLoaderScalingTest { // if true, the test will write original and scaled PNG files to the current directory private static final boolean writeFiles = false;
*** 51,75 **** assertNotNull(imgFrames); assertTrue(imgFrames.length > 0); return Image.convertImageFrame(imgFrames[0]); } ! private void compare(Image img, BufferedImage bImg) { assertNotNull(img); ! assertNotNull(bImg); int w = img.getWidth(), h = img.getHeight(); ! double scaleX = (double)bImg.getWidth() / w; ! double scaleY = (double)bImg.getHeight() / h; for (int y = 0; y < h; y++) { int srcY = (int) Math.floor((y + 0.5) * scaleY); for (int x = 0; x < w; x++) { int srcX = (int) Math.floor((x + 0.5) * scaleX); ! int expected = bImg.getRGB(srcX, srcY); int actual = img.getArgb(x, y); if (expected != actual) { if (writeFiles) { ! writeImages(img, bImg); } throw new org.junit.ComparisonFailure( "pixel " + x + ", " + y + " does not match", String.format("0x%08X", expected), String.format("0x%08X", actual) --- 52,76 ---- assertNotNull(imgFrames); assertTrue(imgFrames.length > 0); return Image.convertImageFrame(imgFrames[0]); } ! private void compare(Image img, Image expectedImg) { assertNotNull(img); ! assertNotNull(expectedImg); int w = img.getWidth(), h = img.getHeight(); ! double scaleX = (double)expectedImg.getWidth() / w; ! double scaleY = (double)expectedImg.getHeight() / h; for (int y = 0; y < h; y++) { int srcY = (int) Math.floor((y + 0.5) * scaleY); for (int x = 0; x < w; x++) { int srcX = (int) Math.floor((x + 0.5) * scaleX); ! int expected = expectedImg.getArgb(srcX, srcY); int actual = img.getArgb(x, y); if (expected != actual) { if (writeFiles) { ! writeImages(img, expectedImg); } throw new org.junit.ComparisonFailure( "pixel " + x + ", " + y + " does not match", String.format("0x%08X", expected), String.format("0x%08X", actual)
*** 77,143 **** } } } } ! private void writePNGFile(BufferedImage bImg, String fileName) { ! try { ! ImageTestHelper.writeImage(bImg, fileName, "png", null); ! } catch (IOException e) { ! System.out.println("writePNGFile " + fileName + " failed: " + e); ! } ! } ! ! private void writeImages(Image img, BufferedImage bImg) { int w = img.getWidth(); int h = img.getHeight(); - writePNGFile(bImg, "out"+w+"x"+h+"OrigJDK.png"); int pixels[] = new int[w * h]; img.getPixels(0, 0, w, h, javafx.scene.image.PixelFormat.getIntArgbPreInstance(), pixels, 0, w); ! BufferedImage fxImg = new BufferedImage(w, h, BufferedImage.TYPE_INT_RGB); ! fxImg.setRGB(0, 0, w, h, pixels, 0, w); ! writePNGFile(fxImg, "out"+w+"x"+h+"ScaledFX.png"); } ! private ByteArrayInputStream writePNGStream(BufferedImage bImg) ! throws IOException ! { ! return ImageTestHelper.writeImageToStream(bImg, "png", null); } ! private void scaleAndCompareImage(BufferedImage bImg, int width, int height) ! throws Exception { ! ByteArrayInputStream in = writePNGStream(bImg); Image img = loadImage(in, width, height); ! compare(img, bImg); } ! private void testScale(int w1, int h1, int w2, int h2) throws Exception { BufferedImage bImg = createImage(w1, h1); ! scaleAndCompareImage(bImg, w2, h2); } @Test ! public void testNoScale() throws Exception { ! testScale(100, 100, 100, 100); } @Test ! public void testAllTheScales() throws Exception { BufferedImage bImg = createImage(10, 10); for (int h = 2; h < 20; h++) { for (int w = 2; w < 20; w++) { ! scaleAndCompareImage(bImg, w, h); ! testScale(w, h, 10, 10); } } } - @Test - public void testRT20295() throws Exception { // (62.0 / 78.0) * 78 != 62 ! testScale(100, 62, 100, 78); } } --- 78,192 ---- } } } } ! private void writeImage(Image img, String fileName) { int w = img.getWidth(); int h = img.getHeight(); int pixels[] = new int[w * h]; img.getPixels(0, 0, w, h, javafx.scene.image.PixelFormat.getIntArgbPreInstance(), pixels, 0, w); ! BufferedImage bImg = new BufferedImage(w, h, BufferedImage.TYPE_INT_RGB); ! bImg.setRGB(0, 0, w, h, pixels, 0, w); ! try { ! ImageTestHelper.writeImage(bImg, fileName, "png", null); ! } catch (IOException e) { ! System.err.println("writeImage " + fileName + " failed: " + e); ! } } ! private void writeImages(Image img, Image expectedImg) { ! int w = img.getWidth(); ! int h = img.getHeight(); ! writeImage(expectedImg, "out"+w+"x"+h+"Orig.png"); ! writeImage(img, "out"+w+"x"+h+"Scaled.png"); } ! private void scaleAndCompareImage(BufferedImage bImg, String format, ! int width, int height) throws Exception { ! ByteArrayInputStream in = ImageTestHelper.writeImageToStream(bImg, format, null); ! Image expectedImg = loadImage(in, 0, 0); ! in.reset(); Image img = loadImage(in, width, height); ! compare(img, expectedImg); } ! private void testScale(String format, int w1, int h1, int w2, int h2) throws Exception { BufferedImage bImg = createImage(w1, h1); ! scaleAndCompareImage(bImg, format, w2, h2); ! } ! ! @Test ! public void testNoScalePNG() throws Exception { ! testScale("png", 100, 100, 100, 100); ! } ! ! @Test ! public void testNoScaleBMP() throws Exception { ! testScale("bmp", 100, 100, 100, 100); ! } ! ! @Test ! public void testNoScaleJPG() throws Exception { ! testScale("jpg", 100, 100, 100, 100); ! } ! ! @Test ! public void testNoScaleGIF() throws Exception { ! testScale("gif", 100, 100, 100, 100); ! } ! ! @Test ! public void testAllTheScalesPNG() throws Exception { ! testAllTheScales("png"); ! } ! ! @Test ! public void testAllTheScalesBMP() throws Exception { ! testAllTheScales("bmp"); } + @Ignore // libjpeg can scale the image itself and results are unpredictable @Test ! public void testAllTheScalesJPG() throws Exception { ! testAllTheScales("jpg"); } @Test ! public void testAllTheScalesGIF() throws Exception { ! testAllTheScales("gif"); ! } ! ! public void testAllTheScales(String format) throws Exception { BufferedImage bImg = createImage(10, 10); for (int h = 2; h < 20; h++) { for (int w = 2; w < 20; w++) { ! scaleAndCompareImage(bImg, format, w, h); ! testScale(format, w, h, 10, 10); } } } // (62.0 / 78.0) * 78 != 62 ! @Test ! public void testRT20295_PNG() throws Exception { ! testScale("png", 100, 62, 100, 78); ! } ! ! @Test ! public void testRT20295_BMP() throws Exception { ! testScale("bmp", 100, 62, 100, 78); ! } ! ! @Test ! public void testRT20295_JPG() throws Exception { ! testScale("jpg", 100, 62, 100, 78); ! } ! ! @Test ! public void testRT20295_GIF() throws Exception { ! testScale("gif", 100, 62, 100, 78); } }
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