Package javax.media.opengl

Examples of javax.media.opengl.GL2.glPushAttrib()

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                | GL2.GL_COLOR_BUFFER_BIT // for alpha test func and ref, and blend
                | GL2.GL_DEPTH_BUFFER_BIT // for depth func
                | GL2.GL_ENABLE_BIT // for enable/disable changes
                | GL2.GL_HINT_BIT | GL2.GL_LINE_BIT; // for antialiasing and line attrs

        gl.glPushAttrib(attrMask);

        if (!dc.isPickingMode())
        {
            gl.glEnable(GL.GL_BLEND);
            OGLUtil.applyBlending(gl, false);
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        GLContext context = context(ctx);
    GL2 gl = context.getGL().getGL2();

        // Temporarily disable fragment and most 3D operations
        gl.glPushAttrib(GL2.GL_ENABLE_BIT | GL2.GL_TEXTURE_BIT | GL2.GL_POLYGON_BIT |
                GL2.GL_CURRENT_BIT );

        disableAttribForRaster(gl);

        /* Setup filter mode if needed */
 
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    GL2 gl = context(ctx).getGL().getGL2();

        int glType = GL.GL_RGBA;

        // Temporarily disable fragment and most 3D operations
        gl.glPushAttrib(GL2.GL_ENABLE_BIT | GL2.GL_TEXTURE_BIT | GL.GL_DEPTH_BUFFER_BIT | GL2.GL_POLYGON_BIT);
        disableAttribFor2D(gl);

        // Reset the polygon mode
        gl.glPolygonMode(GL.GL_FRONT_AND_BACK, GL2.GL_FILL);
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    GL2 gl = context(ctx).getGL().getGL2();

        float[] color = new float[4];

        gl.glPushAttrib(GL2.GL_TRANSFORM_BIT);
        gl.glMatrixMode(GL.GL_TEXTURE);
        gl.glLoadIdentity();
        gl.glPopAttrib();
        gl.glTexEnvfv(GL2.GL_TEXTURE_ENV, GL2.GL_TEXTURE_ENV_COLOR, color, 0);
        gl.glTexEnvi(GL2.GL_TEXTURE_ENV, GL2.GL_TEXTURE_ENV_MODE, GL.GL_REPLACE);
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        // Mask of which buffers to clear, this always includes color & depth
        int clearMask = GL.GL_DEPTH_BUFFER_BIT | GL.GL_COLOR_BUFFER_BIT;

        // Issue 239 - clear stencil if specified
        if (clearStencil) {
            gl.glPushAttrib(GL.GL_DEPTH_BUFFER_BIT | GL.GL_STENCIL_BUFFER_BIT);

            gl.glClearStencil(0);
            gl.glStencilMask(~0);
            clearMask |= GL.GL_STENCIL_BUFFER_BIT;
        } else {
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            gl.glClearStencil(0);
            gl.glStencilMask(~0);
            clearMask |= GL.GL_STENCIL_BUFFER_BIT;
        } else {
            gl.glPushAttrib(GL.GL_DEPTH_BUFFER_BIT);
        }

        gl.glDepthMask(true);
        gl.glClearColor(r, g, b, jctx.getAlphaClearValue());
        gl.glClear(clearMask);
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        GLContext context = context(ctx);
    GL2 gl = context.getGL().getGL2();

        // Temporarily disable fragment and most 3D operations
        gl.glPushAttrib(GL2.GL_ENABLE_BIT | GL2.GL_TEXTURE_BIT | GL2.GL_POLYGON_BIT);

        disableAttribFor2D(gl);
        gl.glDepthMask(false);
        gl.glEnable(GL.GL_TEXTURE_2D);
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    GL2 gl = context(ctx).getGL().getGL2();
        gl.glHint(GL2.GL_PERSPECTIVE_CORRECTION_HINT,
                (perspCorrectionMode == TextureAttributes.NICEST) ? GL.GL_NICEST : GL.GL_FASTEST);

        // set OGL texture matrix
        gl.glPushAttrib(GL2.GL_TRANSFORM_BIT);
        gl.glMatrixMode(GL.GL_TEXTURE);

        if (isIdentity) {
            gl.glLoadIdentity();
        } else if (gl.isExtensionAvailable("GL_VERSION_1_3")) {
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     */
    public static void draw(final GLAutoDrawable drawable, final Polygon polygon, final Circle circle, final boolean showOverlap)
    {
        // store the current color and stencil buffer
        final GL2 gl = (GL2) drawable.getGL();
        gl.glPushAttrib(GL2.GL_CURRENT_BIT);

        if (showOverlap)
        {
            /*
             * Comment the following two lines if you want to also drawing the
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        gl.glColorMask(true, true, true, true);
        gl.glStencilFunc(GL.GL_EQUAL, 1, 1);
        gl.glStencilOp(GL.GL_ZERO, GL.GL_ZERO, GL.GL_ZERO);

        // push the current color
        gl.glPushAttrib(GL2.GL_CURRENT_BIT);

        // use the current polygon's color
        gl.glColor3f(color.getRed(), color.getGreen(), color.getBlue());

        // if only 1 vertex, draw a point
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