Example usage for org.lwjgl.opengl EXTBlendFuncSeparate glBlendFuncSeparateEXT

Introduction

In this page you can find the example usage for org.lwjgl.opengl EXTBlendFuncSeparate glBlendFuncSeparateEXT.

Prototype

public static native void glBlendFuncSeparateEXT(@NativeType("GLenum") int sfactorRGB,
            @NativeType("GLenum") int dfactorRGB, @NativeType("GLenum") int sfactorAlpha,
            @NativeType("GLenum") int dfactorAlpha);

Source Link

Usage

From source file:com.ardor3d.scene.state.lwjgl.LwjglBlendStateUtil.java

License:Open Source License

protected static void applyBlendFunctions(final boolean enabled, final BlendState state,
        final BlendStateRecord record, final ContextCapabilities caps) {
    if (record.isValid()) {
        if (enabled) {
            final int glSrcRGB = getGLSrcValue(state.getSourceFunctionRGB(), caps);
            final int glDstRGB = getGLDstValue(state.getDestinationFunctionRGB(), caps);
            if (caps.isSeparateBlendFunctionsSupported()) {
                final int glSrcAlpha = getGLSrcValue(state.getSourceFunctionAlpha(), caps);
                final int glDstAlpha = getGLDstValue(state.getDestinationFunctionAlpha(), caps);
                if (record.srcFactorRGB != glSrcRGB || record.dstFactorRGB != glDstRGB
                        || record.srcFactorAlpha != glSrcAlpha || record.dstFactorAlpha != glDstAlpha) {
                    EXTBlendFuncSeparate.glBlendFuncSeparateEXT(glSrcRGB, glDstRGB, glSrcAlpha, glDstAlpha);
                    record.srcFactorRGB = glSrcRGB;
                    record.dstFactorRGB = glDstRGB;
                    record.srcFactorAlpha = glSrcAlpha;
                    record.dstFactorAlpha = glDstAlpha;
                }//from w  w w  .  jav a2 s . c om
            } else if (record.srcFactorRGB != glSrcRGB || record.dstFactorRGB != glDstRGB) {
                GL11.glBlendFunc(glSrcRGB, glDstRGB);
                record.srcFactorRGB = glSrcRGB;
                record.dstFactorRGB = glDstRGB;
            }
        }
    } else {
        if (enabled) {
            final int glSrcRGB = getGLSrcValue(state.getSourceFunctionRGB(), caps);
            final int glDstRGB = getGLDstValue(state.getDestinationFunctionRGB(), caps);
            if (caps.isSeparateBlendFunctionsSupported()) {
                final int glSrcAlpha = getGLSrcValue(state.getSourceFunctionAlpha(), caps);
                final int glDstAlpha = getGLDstValue(state.getDestinationFunctionAlpha(), caps);
                EXTBlendFuncSeparate.glBlendFuncSeparateEXT(glSrcRGB, glDstRGB, glSrcAlpha, glDstAlpha);
                record.srcFactorRGB = glSrcRGB;
                record.dstFactorRGB = glDstRGB;
                record.srcFactorAlpha = glSrcAlpha;
                record.dstFactorAlpha = glDstAlpha;
            } else {
                GL11.glBlendFunc(glSrcRGB, glDstRGB);
                record.srcFactorRGB = glSrcRGB;
                record.dstFactorRGB = glDstRGB;
            }
        }
    }
}

---