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Diffstat (limited to 'src/jogl/classes/com/jogamp/opengl/GLBase.java')
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diff --git a/src/jogl/classes/com/jogamp/opengl/GLBase.java b/src/jogl/classes/com/jogamp/opengl/GLBase.java new file mode 100644 index 000000000..19b7808fc --- /dev/null +++ b/src/jogl/classes/com/jogamp/opengl/GLBase.java @@ -0,0 +1,646 @@ +/** + * Copyright 2009 Sun Microsystems, Inc. All Rights Reserved. + * Copyright 2010 JogAmp Community. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without modification, are + * permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, this list of + * conditions and the following disclaimer. + * + * 2. Redistributions in binary form must reproduce the above copyright notice, this list + * of conditions and the following disclaimer in the documentation and/or other materials + * provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY JogAmp Community ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL JogAmp Community OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR + * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR + * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON + * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING + * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF + * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + * + * The views and conclusions contained in the software and documentation are those of the + * authors and should not be interpreted as representing official policies, either expressed + * or implied, of JogAmp Community. + */ + +package com.jogamp.opengl; + +/** + * <P>The base interface from which all GL profiles derive, providing + * checked conversion down to concrete profiles, access to the + * OpenGL context associated with the GL and extension/function + * availability queries as described below.</P> + * + * <P> While the APIs for vendor extensions are unconditionally + * exposed, the underlying functions may not be present. The method + * {@link #isFunctionAvailable} should be used to query the + * availability of any non-core function before it is used for the + * first time; for example, + * <code>gl.isFunctionAvailable("glProgramStringARB")</code>. On + * certain platforms (Windows in particular), the most "core" + * functionality is only OpenGL 1.1, so in theory any routines first + * exposed in OpenGL 1.2, 1.3, and 1.4, 1.5, or 2.0 as well as vendor + * extensions should all be queried. Calling an unavailable function + * will cause a {@link GLException} to be raised. </P> + * + * {@link #isExtensionAvailable} may also be used to determine whether + * a specific extension is available before calling the routines or + * using the functionality it exposes: for example, + * <code>gl.isExtensionAvailable("GL_ARB_vertex_program");</code>. + * However, in this case it is up to the end user to know which + * routines or functionality are associated with which OpenGL + * extensions. It may also be used to test for the availability of a + * particular version of OpenGL: for example, + * <code>gl.isExtensionAvailable("GL_VERSION_1_5");</code>. + * + * <P> Exceptions to the window system extension naming rules: + * + * <UL> + * + * <LI> The memory allocators for the NVidia vertex_array_range (VAR) + * extension, in particular <code>wglAllocateMemoryNV</code> / + * <code>glXAllocateMemoryNV</code> and associated routines. {@link + * #glAllocateMemoryNV} has been provided for window system-independent + * access to VAR. {@link #isFunctionAvailable} will translate an argument + * of "glAllocateMemoryNV" or "glFreeMemoryNV" into the appropriate + * window system-specific name. </P> + * + * <LI> WGL_ARB_pbuffer, WGL_ARB_pixel_format, and other + * platform-specific pbuffer functionality; the availability of + * pbuffers can be queried on Windows, X11 and Mac OS X platforms by + * querying {@link #isExtensionAvailable} with an argument of + * "GL_ARB_pbuffer" or "GL_ARB_pixel_format". + * + * </UL> <P> + * + */ +public interface GLBase { + + /** + * Indicates whether this GL object conforms to any of the OpenGL profiles. + */ + public boolean isGL(); + + /** + * Indicates whether this GL object conforms to the OpenGL ≥ 4.0 compatibility profile. + * The GL4 compatibility profile includes the GL2, GL2ES1, GL2ES2, GL3, GL3bc and GL4 profile. + * @see GLContext#isGL4bc() + */ + public boolean isGL4bc(); + + /** + * Indicates whether this GL object conforms to the OpenGL ≥ 4.0 core profile. + * The GL4 core profile includes the GL2ES2, and GL3 profile. + * @see GLContext#isGL4() + */ + public boolean isGL4(); + + /** + * Indicates whether this GL object conforms to the OpenGL ≥ 3.1 compatibility profile. + * The GL3 compatibility profile includes the GL2, GL2ES1, GL2ES2 and GL3 profile. + * @see GLContext#isGL3bc() + */ + public boolean isGL3bc(); + + /** + * Indicates whether this GL object conforms to the OpenGL ≥ 3.1 core profile. + * The GL3 core profile includes the GL2ES2 profile. + * @see GLContext#isGL3() + */ + public boolean isGL3(); + + /** + * Indicates whether this GL object conforms to the OpenGL ≤ 3.0 profile. + * The GL2 profile includes the GL2ES1 and GL2ES2 profile. + * @see GLContext#isGL2() + */ + public boolean isGL2(); + + /** + * Indicates whether this GL object conforms to the OpenGL ES ≥ 1.0 profile. + * @see GLContext#isGLES1() + */ + public boolean isGLES1(); + + /** + * Indicates whether this GL object conforms to the OpenGL ES ≥ 2.0 profile. + * <p> + * Remark: ES2 compatible desktop profiles are not included. + * To query whether core ES2 functionality is provided, use {@link #isGLES2Compatible()}. + * </p> + * @see #isGLES2Compatible() + * @see GLContext#isGLES2() + */ + public boolean isGLES2(); + + /** + * Indicates whether this GL object conforms to the OpenGL ES ≥ 3.0 profile. + * <p> + * Remark: ES3 compatible desktop profiles are not included. + * To query whether core ES3 functionality is provided, use {@link #isGLES3Compatible()}. + * </p> + * @see #isGLES3Compatible() + * @see GLContext#isGLES3() + */ + public boolean isGLES3(); + + /** + * Indicates whether this GL object conforms to one of the OpenGL ES profiles, + * see {@link #isGLES1()}, {@link #isGLES2()} and {@link #isGLES3()}. + * @see GLContext#isGLES() + */ + public boolean isGLES(); + + /** + * Indicates whether this GL object conforms to a GL2ES1 compatible profile. + * @see GLContext#isGL2ES1() + */ + public boolean isGL2ES1(); + + /** + * Indicates whether this GL object conforms to a GL2ES2 compatible profile. + * @see GLContext#isGL2ES2() + */ + public boolean isGL2ES2(); + + /** + * Indicates whether this GL object conforms to a either a GL2GL3 or GL3ES3 compatible profile. + * @see GLContext#isGL2ES3() + */ + public boolean isGL2ES3(); + + /** + * Indicates whether this GL object conforms to a GL3ES3 compatible profile. + * @see GLContext#isGL3ES3() + */ + public boolean isGL3ES3(); + + /** + * Returns true if this GL object conforms to a GL4ES3 compatible profile, i.e. if {@link #isGLES3Compatible()} returns true. + * <p>Includes [ GL ≥ 4.3, GL ≥ 3.1 w/ GL_ARB_ES3_compatibility and GLES3 ]</p> + * @see GLContext#isGL4ES3() + */ + public boolean isGL4ES3(); + + /** + * Indicates whether this GL object conforms to a GL2GL3 compatible profile. + * @see GLContext#isGL2GL3() + */ + public boolean isGL2GL3(); + + /** + * Indicates whether this GL object uses a GL4 core profile. <p>Includes [ GL4 ].</p> + * @see GLContext#isGL4core() + */ + public boolean isGL4core(); + + /** + * Indicates whether this GL object uses a GL3 core profile. <p>Includes [ GL4, GL3 ].</p> + * @see GLContext#isGL3core() + */ + public boolean isGL3core(); + + /** + * Indicates whether this GL object uses a GL core profile. <p>Includes [ GL4, GL3, GLES3, GL2ES2 ].</p> + * @see GLContext#isGLcore() + */ + public boolean isGLcore(); + + /** + * Indicates whether this GL object is compatible with the core OpenGL ES2 functionality. + * @return true if this context is an ES2 context or implements + * the extension <code>GL_ARB_ES2_compatibility</code>, otherwise false + * @see GLContext#isGLES2Compatible() + */ + public boolean isGLES2Compatible(); + + /** + * Indicates whether this GL object is compatible with the core OpenGL ES3 functionality. + * <p> + * Return true if the underlying context is an ES3 context or implements + * the extension <code>GL_ARB_ES3_compatibility</code>, otherwise false. + * </p> + * <p> + * Includes [ GL ≥ 4.3, GL ≥ 3.1 w/ GL_ARB_ES3_compatibility and GLES3 ] + * </p> + * @see GLContext#isGLES3Compatible() + */ + public boolean isGLES3Compatible(); + + /** + * Indicates whether this GL object supports GLSL. + * @see GLContext#hasGLSL() + */ + public boolean hasGLSL(); + + /** + * Returns the downstream GL instance in case this is a wrapping pipeline, otherwise <code>null</code>. + * <p> + * See {@link #getRootGL()} for retrieving the implementing root instance. + * </p> + * @throws GLException if the downstream instance is not null and not a GL implementation + * @see #getRootGL() + */ + public GL getDownstreamGL() throws GLException; + + /** + * Returns the implementing root instance, considering a wrapped pipelined hierarchy, see {@link #getDownstreamGL()}. + * <p> + * If this instance is not a wrapping pipeline, i.e. has no downstream instance, + * this instance is returned. + * </p> + * @throws GLException if the root instance is not a GL implementation + */ + public GL getRootGL() throws GLException; + + /** + * Casts this object to the GL interface. + * @throws GLException if this object is not a GL implementation + */ + public GL getGL() throws GLException; + + /** + * Casts this object to the GL4bc interface. + * @throws GLException if this object is not a GL4bc implementation + */ + public GL4bc getGL4bc() throws GLException; + + /** + * Casts this object to the GL4 interface. + * @throws GLException if this object is not a GL4 implementation + */ + public GL4 getGL4() throws GLException; + + /** + * Casts this object to the GL3bc interface. + * @throws GLException if this object is not a GL3bc implementation + */ + public GL3bc getGL3bc() throws GLException; + + /** + * Casts this object to the GL3 interface. + * @throws GLException if this object is not a GL3 implementation + */ + public GL3 getGL3() throws GLException; + + /** + * Casts this object to the GL2 interface. + * @throws GLException if this object is not a GL2 implementation + */ + public GL2 getGL2() throws GLException; + + /** + * Casts this object to the GLES1 interface. + * @throws GLException if this object is not a GLES1 implementation + */ + public GLES1 getGLES1() throws GLException; + + /** + * Casts this object to the GLES2 interface. + * @throws GLException if this object is not a GLES2 implementation + */ + public GLES2 getGLES2() throws GLException; + + /** + * Casts this object to the GLES3 interface. + * @throws GLException if this object is not a GLES3 implementation + */ + public GLES3 getGLES3() throws GLException; + + /** + * Casts this object to the GL2ES1 interface. + * @throws GLException if this object is not a GL2ES1 implementation + */ + public GL2ES1 getGL2ES1() throws GLException; + + /** + * Casts this object to the GL2ES2 interface. + * @throws GLException if this object is not a GL2ES2 implementation + */ + public GL2ES2 getGL2ES2() throws GLException; + + /** + * Casts this object to the GL2ES3 interface. + * @throws GLException if this object is not a GL2ES3 implementation + */ + public GL2ES3 getGL2ES3() throws GLException; + + /** + * Casts this object to the GL3ES3 interface. + * @throws GLException if this object is not a GL3ES3 implementation + */ + public GL3ES3 getGL3ES3() throws GLException; + + /** + * Casts this object to the GL4ES3 interface. + * @throws GLException if this object is not a GL4ES3 implementation + */ + public GL4ES3 getGL4ES3() throws GLException; + + /** + * Casts this object to the GL2GL3 interface. + * @throws GLException if this object is not a GL2GL3 implementation + */ + public GL2GL3 getGL2GL3() throws GLException; + + /** + * Returns the GLProfile associated with this GL object. + */ + public GLProfile getGLProfile(); + + /** + * Returns the GLContext associated which this GL object. + */ + public GLContext getContext(); + + /** + * Returns true if the specified OpenGL core- or extension-function can be + * used successfully through this GL instance given the current host (OpenGL + * <i>client</i>) and display (OpenGL <i>server</i>) configuration.<P> + * By "successfully" we mean that the function is both <i>callable</i> + * on the machine running the program and <i>available</i> on the current + * display.<P> + * + * In order to call a function successfully, the function must be both + * <i>callable</i> on the machine running the program and <i>available</i> on + * the display device that is rendering the output (note: on non-networked, + * single-display machines these two conditions are identical; on networked and/or + * multi-display machines this becomes more complicated). These conditions are + * met if the function is either part of the core OpenGL version supported by + * both the host and display, or it is an OpenGL extension function that both + * the host and display support. <P> + * + * A GL function is <i>callable</i> if it is successfully linked at runtime, + * hence the GLContext must be made current at least once. + * + * @param glFunctionName the name of the OpenGL function (e.g., use + * "glBindRenderbufferEXT" or "glBindRenderbuffer" to check if {@link + * GL#glBindRenderbuffer(int,int)} is available). + */ + public boolean isFunctionAvailable(String glFunctionName); + + /** + * Returns true if the specified OpenGL extension can be + * used successfully through this GL instance given the current host (OpenGL + * <i>client</i>) and display (OpenGL <i>server</i>) configuration.<P> + * + * @param glExtensionName the name of the OpenGL extension (e.g., + * "GL_ARB_vertex_program"). + */ + public boolean isExtensionAvailable(String glExtensionName); + + /** + * Returns <code>true</code> if basic FBO support is available, otherwise <code>false</code>. + * <p> + * Basic FBO is supported if the context is either GL-ES >= 2.0, GL >= 3.0 [core, compat] or implements the extensions + * <code>GL_ARB_ES2_compatibility</code>, <code>GL_ARB_framebuffer_object</code>, <code>GL_EXT_framebuffer_object</code> or <code>GL_OES_framebuffer_object</code>. + * </p> + * <p> + * Basic FBO support may only include one color attachment and no multisampling, + * as well as limited internal formats for renderbuffer. + * </p> + * @see GLContext#hasBasicFBOSupport() + */ + public boolean hasBasicFBOSupport(); + + /** + * Returns <code>true</code> if full FBO support is available, otherwise <code>false</code>. + * <p> + * Full FBO is supported if the context is either GL >= core 3.0 [ES, core, compat] or implements the extensions + * <code>ARB_framebuffer_object</code>, or all of + * <code>EXT_framebuffer_object</code>, <code>EXT_framebuffer_multisample</code>, + * <code>EXT_framebuffer_blit</code>, <code>GL_EXT_packed_depth_stencil</code>. + * </p> + * <p> + * Full FBO support includes multiple color attachments and multisampling. + * </p> + * @see GLContext#hasFullFBOSupport() + */ + public boolean hasFullFBOSupport(); + + /** + * Returns the maximum number of FBO RENDERBUFFER samples + * if {@link #hasFullFBOSupport() full FBO is supported}, otherwise false. + * @see GLContext#getMaxRenderbufferSamples() + */ + public int getMaxRenderbufferSamples(); + + /** + * Returns true if the GL context supports non power of two (NPOT) textures, + * otherwise false. + * <p> + * NPOT textures are supported in OpenGL >= 3, GLES2 or if the + * 'GL_ARB_texture_non_power_of_two' extension is available. + * </p> + */ + public boolean isNPOTTextureAvailable(); + + public boolean isTextureFormatBGRA8888Available(); + + /** Provides a platform-independent way to specify the minimum swap + interval for buffer swaps. An argument of 0 disables + sync-to-vertical-refresh completely, while an argument of 1 + causes the application to wait until the next vertical refresh + until swapping buffers. The default, which is platform-specific, + is usually either 0 or 1. This function is not guaranteed to + have an effect, and in particular only affects heavyweight + onscreen components. + + @see #getSwapInterval + @throws GLException if this context is not the current + */ + public void setSwapInterval(int interval); + + /** Provides a platform-independent way to get the swap + interval set by {@link #setSwapInterval}. <br> + + If the interval is not set by {@link #setSwapInterval} yet, + -1 is returned, indicating that the platforms default + is being used. + + @see #setSwapInterval + */ + public int getSwapInterval(); + + /** + * Returns an object through which platform-specific OpenGL extensions + * (EGL, GLX, WGL, etc.) may be accessed. The data type of the returned + * object and its associated capabilities are undefined. Most + * applications will never need to call this method. It is highly + * recommended that any applications which do call this method perform + * all accesses on the returned object reflectively to guard + * themselves against changes to the implementation. + */ + public Object getPlatformGLExtensions(); + + /** + * Returns an object providing access to the specified OpenGL + * extension. This is intended to provide a mechanism for vendors who + * wish to provide access to new OpenGL extensions without changing + * the public API of the core package. For example, a user may request + * access to extension "GL_VENDOR_foo" and receive back an object + * which implements a vendor-specified interface which can call the + * OpenGL extension functions corresponding to that extension. It is + * up to the vendor to specify both the extension name and Java API + * for accessing it, including which class or interface contains the + * functions. + * + * <P> + * + * Note: it is the intent to add new extensions as quickly as possible + * to the core GL API. Therefore it is unlikely that most vendors will + * use this extension mechanism, but it is being provided for + * completeness. + */ + public Object getExtension(String extensionName); + + /** Aliased entrypoint of <code> void {@native glClearDepth}(GLclampd depth); </code> and <code> void {@native glClearDepthf}(GLclampf depth); </code>. */ + public void glClearDepth( double depth ); + + /** Aliased entrypoint of <code> void {@native glDepthRange}(GLclampd depth); </code> and <code> void {@native glDepthRangef}(GLclampf depth); </code>. */ + public void glDepthRange(double zNear, double zFar); + + /** + * @param target a GL buffer (VBO) target as used in {@link GL#glBindBuffer(int, int)}, ie {@link GL#GL_ELEMENT_ARRAY_BUFFER}, {@link GL#GL_ARRAY_BUFFER}, .. + * @return the GL buffer name bound to a target via {@link GL#glBindBuffer(int, int)} or 0 if unbound. + * @see #getBufferStorage(int) + */ + public int getBoundBuffer(int target); + + /** + * @param bufferName a GL buffer name, generated with e.g. {@link GL#glGenBuffers(int, int[], int)} and used in {@link GL#glBindBuffer(int, int)}, {@link GL#glBufferData(int, long, java.nio.Buffer, int)} or {@link GL2#glNamedBufferDataEXT(int, long, java.nio.Buffer, int)}. + * @return the size of the given GL buffer storage, see {@link GLBufferStorage} + * @see #getBoundBuffer(int) + */ + public GLBufferStorage getBufferStorage(int bufferName); + + /** + * Returns the {@link GLBufferStorage} instance as mapped via OpenGL's native {@link GL#glMapBuffer(int, int) glMapBuffer(..)} implementation. + * <p> + * Throws a {@link GLException} if GL-function constraints are not met. + * </p> + * <p> + * {@link GL#glMapBuffer(int, int)} wrapper calls this method and returns {@link GLBufferStorage#getMappedBuffer()}. + * </p> + * <p> + * A zero {@link GLBufferStorage#getSize()} will avoid a native call and returns the unmapped {@link GLBufferStorage}. + * </p> + * <p> + * A null native mapping result indicating an error will + * not cause a GLException but returns the unmapped {@link GLBufferStorage}. + * This allows the user to handle this case. + * </p> + * @param target denotes the buffer via it's bound target + * @param access the mapping access mode + * @throws GLException if buffer is not bound to target + * @throws GLException if buffer is not tracked + * @throws GLException if buffer is already mapped + * @throws GLException if buffer has invalid store size, i.e. less-than zero + */ + public GLBufferStorage mapBuffer(int target, int access) throws GLException; + + /** + * Returns the {@link GLBufferStorage} instance as mapped via OpenGL's native {@link GL#glMapBufferRange(int, long, long, int) glMapBufferRange(..)} implementation. + * <p> + * Throws a {@link GLException} if GL-function constraints are not met. + * </p> + * <p> + * {@link GL#glMapBufferRange(int, long, long, int)} wrapper calls this method and returns {@link GLBufferStorage#getMappedBuffer()}. + * </p> + * <p> + * A zero {@link GLBufferStorage#getSize()} will avoid a native call and returns the unmapped {@link GLBufferStorage}. + * </p> + * <p> + * A null native mapping result indicating an error will + * not cause a GLException but returns the unmapped {@link GLBufferStorage}. + * This allows the user to handle this case. + * </p> + * @param target denotes the buffer via it's bound target + * @param offset offset of the mapped buffer's storage + * @param length length of the mapped buffer's storage + * @param access the mapping access mode + * @throws GLException if buffer is not bound to target + * @throws GLException if buffer is not tracked + * @throws GLException if buffer is already mapped + * @throws GLException if buffer has invalid store size, i.e. less-than zero + * @throws GLException if buffer mapping range does not fit, incl. offset + */ + public GLBufferStorage mapBufferRange(final int target, final long offset, final long length, final int access) throws GLException; + + /** + * @return true if a VBO is bound to {@link GL#GL_ARRAY_BUFFER} via {@link GL#glBindBuffer(int, int)}, otherwise false + */ + public boolean isVBOArrayBound(); + + /** + * @return true if a VBO is bound to {@link GL#GL_ELEMENT_ARRAY_BUFFER} via {@link GL#glBindBuffer(int, int)}, otherwise false + */ + public boolean isVBOElementArrayBound(); + + /** + * Return the framebuffer name bound to this context, + * see {@link GL#glBindFramebuffer(int, int)}. + * <p> + * Calls {@link GLContext#getBoundFramebuffer(int)}. + * </p> + */ + public int getBoundFramebuffer(int target); + + /** + * Return the default draw framebuffer name. + * <p> + * May differ from it's default <code>zero</code> + * in case an framebuffer object ({@link com.jogamp.opengl.FBObject}) based drawable + * is being used. + * </p> + * <p> + * Calls {@link GLContext#getDefaultDrawFramebuffer()}. + * </p> + */ + public int getDefaultDrawFramebuffer(); + + /** + * Return the default read framebuffer name. + * <p> + * May differ from it's default <code>zero</code> + * in case an framebuffer object ({@link com.jogamp.opengl.FBObject}) based drawable + * is being used. + * </p> + * <p> + * Calls {@link GLContext#getDefaultReadFramebuffer()}. + * </p> + */ + public int getDefaultReadFramebuffer(); + + /** + * Returns the default color buffer within the current bound + * {@link #getDefaultReadFramebuffer()}, i.e. GL_READ_FRAMEBUFFER, + * which will be used as the source for pixel reading commands, + * like {@link GL#glReadPixels(int, int, int, int, int, int, java.nio.Buffer) glReadPixels} etc. + * <p> + * For offscreen framebuffer objects this is {@link GL#GL_COLOR_ATTACHMENT0}, + * otherwise this is {@link GL#GL_FRONT} for single buffer configurations + * and {@link GL#GL_BACK} for double buffer configurations. + * </p> + * <p> + * Note-1: Neither ES1 nor ES2 supports selecting the read buffer via glReadBuffer + * and {@link GL#GL_BACK} is the default. + * </p> + * <p> + * Note-2: ES3 only supports {@link GL#GL_BACK}, {@link GL#GL_NONE} or {@link GL#GL_COLOR_ATTACHMENT0}+i + * </p> + * <p> + * Note-3: See {@link com.jogamp.opengl.util.GLDrawableUtil#swapBuffersBeforeRead(GLCapabilitiesImmutable) swapBuffersBeforeRead} + * for read-pixels and swap-buffers implications. + * </p> + * <p> + * Calls {@link GLContext#getDefaultReadBuffer()}. + * </p> + */ + public int getDefaultReadBuffer(); +} + |