org.lwjgl.opengles.EXTMultisampledRenderToTexture Maven / Gradle / Ivy
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/*
* Copyright LWJGL. All rights reserved.
* License terms: https://www.lwjgl.org/license
* MACHINE GENERATED FILE, DO NOT EDIT
*/
package org.lwjgl.opengles;
import static org.lwjgl.system.Checks.*;
/**
* Native bindings to the EXT_multisampled_render_to_texture extension.
*
* This extension introduces functionality to perform multisampled rendering to a color renderable texture, without requiring an explicit resolve of
* multisample data.
*
* Some GPU architectures - such as tile-based renderers - are capable of performing multisampled rendering by storing multisample data in internal
* high-speed memory and downsampling the data when writing out to external memory after rendering has finished. Since per-sample data is never written
* out to external memory, this approach saves bandwidth and storage space. In this case multisample data gets discarded, however this is acceptable in
* most cases.
*
* The extension provides a new command, FramebufferTexture2DMultisampleEXT, which attaches a texture level to a framebuffer and enables multisampled
* rendering to that texture level.
*
* When the texture level is flushed or used as a source or destination for any operation other than drawing to it, an implicit resolve of multisampled
* color data may be performed. After such a resolve, the multisampled color data is discarded.
*
* In order to allow the use of multisampled depth and stencil buffers when performing multisampled rendering to a texture, the extension also adds the
* command RenderbufferStorageMultisampleEXT.
*
* Requires {@link GLES20 GLES 2.0}.
*/
public class EXTMultisampledRenderToTexture {
/** Accepted by the {@code pname} parameter of GetRenderbufferParameteriv. */
public static final int GL_RENDERBUFFER_SAMPLES_EXT = 0x8CAB;
/** Returned by CheckFramebufferStatus. */
public static final int GL_FRAMEBUFFER_INCOMPLETE_MULTISAMPLE_EXT = 0x8D56;
/** Accepted by the {@code pname} parameter of GetBooleanv, GetIntegerv, and GetFloatv. */
public static final int GL_MAX_SAMPLES_EXT = 0x8D57;
/** Accepted by the {@code pname} parameter of GetFramebufferAttachmentParameteriv. */
public static final int GL_FRAMEBUFFER_ATTACHMENT_TEXTURE_SAMPLES_EXT = 0x8D6C;
static { GLES.initialize(); }
protected EXTMultisampledRenderToTexture() {
throw new UnsupportedOperationException();
}
static boolean isAvailable(GLESCapabilities caps) {
return checkFunctions(
caps.glRenderbufferStorageMultisampleEXT, caps.glFramebufferTexture2DMultisampleEXT
);
}
// --- [ glRenderbufferStorageMultisampleEXT ] ---
public static native void nglRenderbufferStorageMultisampleEXT(int target, int samples, int internalformat, int width, int height);
public static void glRenderbufferStorageMultisampleEXT(int target, int samples, int internalformat, int width, int height) {
nglRenderbufferStorageMultisampleEXT(target, samples, internalformat, width, height);
}
// --- [ glFramebufferTexture2DMultisampleEXT ] ---
public static native void nglFramebufferTexture2DMultisampleEXT(int target, int attachment, int textarget, int texture, int level, int samples);
public static void glFramebufferTexture2DMultisampleEXT(int target, int attachment, int textarget, int texture, int level, int samples) {
nglFramebufferTexture2DMultisampleEXT(target, attachment, textarget, texture, level, samples);
}
}