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-rw-r--r--src/junit/com/jogamp/test/junit/jogl/glsl/TransformFeedbackVeryingsBug407Test.java132
1 files changed, 132 insertions, 0 deletions
diff --git a/src/junit/com/jogamp/test/junit/jogl/glsl/TransformFeedbackVeryingsBug407Test.java b/src/junit/com/jogamp/test/junit/jogl/glsl/TransformFeedbackVeryingsBug407Test.java
new file mode 100644
index 000000000..1bb513bf3
--- /dev/null
+++ b/src/junit/com/jogamp/test/junit/jogl/glsl/TransformFeedbackVeryingsBug407Test.java
@@ -0,0 +1,132 @@
+package com.jogamp.test.junit.jogl.glsl;
+
+import java.io.ByteArrayOutputStream;
+import java.io.PrintStream;
+
+import javax.media.opengl.GL3;
+import javax.media.opengl.GLCapabilities;
+import javax.media.opengl.GLContext;
+import javax.media.opengl.GLDrawable;
+import javax.media.opengl.GLDrawableFactory;
+import javax.media.opengl.GLProfile;
+
+import org.junit.After;
+import org.junit.Assert;
+import org.junit.Before;
+import org.junit.Test;
+
+import com.jogamp.newt.Display;
+import com.jogamp.newt.NewtFactory;
+import com.jogamp.newt.Screen;
+import com.jogamp.newt.Window;
+import com.jogamp.opengl.util.glsl.ShaderUtil;
+
+
+/**
+ * Bug 'Function glTransformFeedbackVaryings incorrectly passes argument'
+ * http://jogamp.org/bugzilla/show_bug.cgi?id=407
+ */
+public class TransformFeedbackVeryingsBug407Test {
+
+ static {
+ //NativeUtil.preloadNativeLibs(); // internal method
+ GLProfile.initSingleton();
+ }
+ private GLContext context;
+ private String VERTEX_SHADER_TEXT;
+
+ @Before
+ public void setUp() {
+ VERTEX_SHADER_TEXT =
+ "#version 330 \n"
+ + " \n"
+ + "out vec4 Position; \n"
+ + " \n"
+ + "void main() { \n"
+ + " Position = vec4(1.0, 1.0, 1.0, 1.0); \n"
+ + "} \n";
+
+ GLCapabilities caps;
+ Window window;
+ GLDrawable drawable;
+
+ GLProfile glp = GLProfile.get(GLProfile.GL3);
+ caps = new GLCapabilities(glp);
+
+ caps.setOnscreen(true);
+ caps.setDoubleBuffered(true);
+
+ Display display = NewtFactory.createDisplay(null); // local display
+ Screen screen = NewtFactory.createScreen(display, 0); // screen 0
+
+ window = NewtFactory.createWindow(screen, caps, true);
+ window.setSize(800, 600);
+ window.setVisible(true);
+
+ drawable = GLDrawableFactory.getFactory(glp).createGLDrawable(window);
+ drawable.setRealized(true);
+
+ context = drawable.createContext(null);
+
+ context.makeCurrent();
+ }
+
+ @After
+ public void tearDown() {
+ context.release();
+ }
+
+ private int getShader(GL3 gl, String text, int type) {
+ int shaderProgram = gl.glCreateProgram();
+
+ int vertShader = gl.glCreateShader(type);
+
+ String[] lines = new String[]{text};
+ int[] lengths = new int[]{lines[0].length()};
+ gl.glShaderSource(vertShader, lines.length, lines, lengths, 0);
+ gl.glCompileShader(vertShader);
+ gl.glAttachShader(shaderProgram, vertShader);
+
+ return shaderProgram;
+ }
+
+ @Test
+ public void testGlTransformFeedbackVaryings_WhenVarNameOK() {
+ // given
+
+ GL3 gl = context.getGL().getGL3();
+ int shaderProgram = getShader(gl, VERTEX_SHADER_TEXT, GL3.GL_VERTEX_SHADER);
+ String[] vars = new String[]{"Position"};
+
+ // when
+
+ gl.glTransformFeedbackVaryings(shaderProgram, 1, vars, GL3.GL_SEPARATE_ATTRIBS);
+ gl.glLinkProgram(shaderProgram);
+
+ // then
+
+ Assert.assertTrue(ShaderUtil.isProgramValid(gl, shaderProgram, System.out));
+ Assert.assertEquals(GL3.GL_NO_ERROR, gl.glGetError());
+ }
+
+ @Test
+ public void testGlTransformFeedbackVaryings_WhenVarNameWrong() {
+ // given
+
+ GL3 gl = context.getGL().getGL3();
+ int shaderProgram = getShader(gl, VERTEX_SHADER_TEXT, GL3.GL_VERTEX_SHADER);
+ String[] vars = new String[]{"PPPosition"};
+
+ // when
+
+ gl.glTransformFeedbackVaryings(shaderProgram, 1, vars, GL3.GL_SEPARATE_ATTRIBS);
+ gl.glLinkProgram(shaderProgram);
+
+ // then
+
+ ByteArrayOutputStream baos = new ByteArrayOutputStream();
+ Assert.assertFalse(ShaderUtil.isProgramValid(gl, shaderProgram, new PrintStream(baos)));
+ Assert.assertEquals(GL3.GL_NO_ERROR, gl.glGetError());
+ Assert.assertTrue(baos.toString().contains("(named PPPosition)"));
+ }
+}