Package org.lwjgl.opengles

Class EXTBlendFuncExtended

java.lang.Object

org.lwjgl.opengles.EXTBlendFuncExtended

public class EXTBlendFuncExtended
extends java.lang.Object

Native bindings to the EXT_blend_func_extended extension.

This extension provides an ES version of the ARB_blend_func_extended functionality.

Traditional OpenGL includes fixed-function blending that combines source colors with the existing content of a render buffer in a variety of ways. A number of extensions have enhanced this functionality by adding further sources of blending weights and methods to combine them. However, the inputs to the fixed-function blending units are constrained to a source color (as output from fragment shading), destination color (as the current content of the frame buffer) or constants that may be used in their place.

This extension adds new blending functions whereby a fragment shader may output two colors, one of which is treated as the source color, and the other used as a blending factor for either source or destination colors. Furthermore, this extension increases orthogonality by allowing the SRC_ALPHA_SATURATE function to be used as the destination weight.

Because of the limitations of the OpenGL ES 2.0 shading language, new built-in variables (gl_SecondaryFragColorEXT, gl_SecondaryFragDataEXT) are added to the ES 1.00 shading language rather than introduce more complex features for user-defined fragment outputs. Because such built-in variable are deprecated in ES 3.0, these variables are NOT available in the OpenGL ES 3.xx shading language verisons.

Field Summary

Fields

Modifier and Type	Field	Description
static int	GL_LOCATION_INDEX_EXT	Accepted in the props array of GetProgramResourceiv.
static int	GL_MAX_DUAL_SOURCE_DRAW_BUFFERS_EXT	Accepted by the pname parameter of GetBooleanv, GetIntegerv, and GetFloatv.
static int	GL_ONE_MINUS_SRC1_ALPHA_EXT GL_ONE_MINUS_SRC1_COLOR_EXT GL_SRC_ALPHA_SATURATE_EXT GL_SRC1_ALPHA_EXT GL_SRC1_COLOR_EXT	Accepted by the src and dst parameters of BlendFunc and BlendFunciEXT, and by the srcRGB, dstRGB, srcAlpha and dstAlpha parameters of BlendFuncSeparate and BlendFuncSeparateiEXT.

Method Summary

Modifier and Type	Method	Description
static void	glBindFragDataLocationEXT(int program, int colorNumber, java.lang.CharSequence name)
static void	glBindFragDataLocationEXT(int program, int colorNumber, java.nio.ByteBuffer name)
static void	glBindFragDataLocationIndexedEXT(int program, int colorNumber, int index, java.lang.CharSequence name)
static void	glBindFragDataLocationIndexedEXT(int program, int colorNumber, int index, java.nio.ByteBuffer name)
static int	glGetFragDataIndexEXT(int program, java.lang.CharSequence name)
static int	glGetFragDataIndexEXT(int program, java.nio.ByteBuffer name)
static int	glGetProgramResourceLocationIndexEXT(int program, int programInterface, java.lang.CharSequence name)
static int	glGetProgramResourceLocationIndexEXT(int program, int programInterface, java.nio.ByteBuffer name)
static void	nglBindFragDataLocationEXT(int program, int colorNumber, long name)
static void	nglBindFragDataLocationIndexedEXT(int program, int colorNumber, int index, long name)
static int	nglGetFragDataIndexEXT(int program, long name)
static int	nglGetProgramResourceLocationIndexEXT(int program, int programInterface, long name)

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

GL_SRC1_COLOR_EXT, GL_SRC1_ALPHA_EXT, GL_ONE_MINUS_SRC1_COLOR_EXT, GL_ONE_MINUS_SRC1_ALPHA_EXT, GL_SRC_ALPHA_SATURATE_EXT

Accepted by the src and dst parameters of BlendFunc and BlendFunciEXT, and by the srcRGB, dstRGB, srcAlpha and dstAlpha parameters of BlendFuncSeparate and BlendFuncSeparateiEXT.

GL_LOCATION_INDEX_EXT

Accepted in the props array of GetProgramResourceiv.

GL_MAX_DUAL_SOURCE_DRAW_BUFFERS_EXT

Accepted by the pname parameter of GetBooleanv, GetIntegerv, and GetFloatv.

Method Detail

nglBindFragDataLocationIndexedEXT

public static void nglBindFragDataLocationIndexedEXT(int program,
                                                     int colorNumber,
                                                     int index,
                                                     long name)

glBindFragDataLocationIndexedEXT

public static void glBindFragDataLocationIndexedEXT(int program,
                                                    int colorNumber,
                                                    int index,
                                                    java.nio.ByteBuffer name)

glBindFragDataLocationIndexedEXT

public static void glBindFragDataLocationIndexedEXT(int program,
                                                    int colorNumber,
                                                    int index,
                                                    java.lang.CharSequence name)

nglGetFragDataIndexEXT

public static int nglGetFragDataIndexEXT(int program,
                                         long name)

glGetFragDataIndexEXT

public static int glGetFragDataIndexEXT(int program,
                                        java.nio.ByteBuffer name)

glGetFragDataIndexEXT

public static int glGetFragDataIndexEXT(int program,
                                        java.lang.CharSequence name)

nglBindFragDataLocationEXT

public static void nglBindFragDataLocationEXT(int program,
                                              int colorNumber,
                                              long name)

glBindFragDataLocationEXT

public static void glBindFragDataLocationEXT(int program,
                                             int colorNumber,
                                             java.nio.ByteBuffer name)

glBindFragDataLocationEXT

public static void glBindFragDataLocationEXT(int program,
                                             int colorNumber,
                                             java.lang.CharSequence name)

nglGetProgramResourceLocationIndexEXT

public static int nglGetProgramResourceLocationIndexEXT(int program,
                                                        int programInterface,
                                                        long name)

glGetProgramResourceLocationIndexEXT

public static int glGetProgramResourceLocationIndexEXT(int program,
                                                       int programInterface,
                                                       java.nio.ByteBuffer name)

glGetProgramResourceLocationIndexEXT

public static int glGetProgramResourceLocationIndexEXT(int program,
                                                       int programInterface,
                                                       java.lang.CharSequence name)