Package com.jogamp.opengl.util.glsl

Class ShaderUtil

java.lang.Object

com.jogamp.opengl.util.glsl.ShaderUtil

public final class ShaderUtil
extends Object

Constructor Summary

Constructors

Constructor	Description
ShaderUtil()

Method Summary

Modifier and Type	Method	Description
static void	attachShader(GL _gl, int program, IntBuffer shaders)
static void	compileShader(GL _gl, IntBuffer shaders)
static boolean	createAndCompileShader(GL _gl, IntBuffer shader, int shaderType, CharSequence[][] sources, PrintStream verboseOut)
static boolean	createAndLoadShader(GL _gl, IntBuffer shader, int shaderType, int binFormat, Buffer bin, PrintStream verboseOut)
static void	createShader(GL _gl, int type, IntBuffer shaders)
static void	deleteShader(GL _gl, IntBuffer shaders)
static void	detachShader(GL _gl, int program, IntBuffer shaders)
static String	getProgramInfoLog(GL _gl, int programObj)
static Set<Integer>	getShaderBinaryFormats(GL _gl)	If supported, queries the natively supported shader binary formats using GL2ES2.GL_NUM_SHADER_BINARY_FORMATS and GL2ES2.GL_SHADER_BINARY_FORMATS via GL.glGetIntegerv(int, int[], int).
static String	getShaderInfoLog(GL _gl, int shaderObj)
static boolean	isGeometryShaderSupported(GL _gl)	Returns true if GeometryShader is supported, i.e.
static boolean	isProgramExecStatusValid(GL _gl, int programObj, PrintStream verboseOut)	Performs GL2ES2.glValidateProgram(int)
static boolean	isProgramLinkStatusValid(GL _gl, int programObj, PrintStream verboseOut)
static boolean	isProgramStatusValid(GL _gl, int programObj, int name)
static boolean	isShaderCompilerAvailable(GL _gl)	Returns true if a hader compiler is available, otherwise false.
static boolean	isShaderStatusValid(GL _gl, int shaderObj, int name, PrintStream verboseOut)
static boolean	isShaderStatusValid(GL _gl, IntBuffer shaders, int name, PrintStream verboseOut)
static void	shaderBinary(GL _gl, IntBuffer shaders, int binFormat, Buffer bin)
static void	shaderSource(GL _gl, int shader, CharSequence[] source)
static void	shaderSource(GL _gl, IntBuffer shaders, CharSequence[][] sources)

Methods inherited from class java.lang.Object

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

Constructor Detail

ShaderUtil

public ShaderUtil()

Method Detail

getShaderInfoLog

public static String getShaderInfoLog(GL _gl,
                                      int shaderObj)

getProgramInfoLog

public static String getProgramInfoLog(GL _gl,
                                       int programObj)

isShaderStatusValid

public static boolean isShaderStatusValid(GL _gl,
                                          int shaderObj,
                                          int name,
                                          PrintStream verboseOut)

isShaderStatusValid

public static boolean isShaderStatusValid(GL _gl,
                                          IntBuffer shaders,
                                          int name,
                                          PrintStream verboseOut)

isProgramStatusValid

public static boolean isProgramStatusValid(GL _gl,
                                           int programObj,
                                           int name)

isProgramLinkStatusValid

public static boolean isProgramLinkStatusValid(GL _gl,
                                               int programObj,
                                               PrintStream verboseOut)

isProgramExecStatusValid

public static boolean isProgramExecStatusValid(GL _gl,
                                               int programObj,
                                               PrintStream verboseOut)

Performs GL2ES2.glValidateProgram(int)

One shall only call this method while debugging and only if all required resources by the shader are set.

Note: It is possible that a working shader program will fail validation. This has been experienced on NVidia APX2500 and Tegra2.

See Also:

GL2ES2.glValidateProgram(int)

createShader

public static void createShader(GL _gl,
                                int type,
                                IntBuffer shaders)

getShaderBinaryFormats

public static Set<Integer> getShaderBinaryFormats(GL _gl)

If supported, queries the natively supported shader binary formats using GL2ES2.GL_NUM_SHADER_BINARY_FORMATS and GL2ES2.GL_SHADER_BINARY_FORMATS via GL.glGetIntegerv(int, int[], int).

isShaderCompilerAvailable

public static boolean isShaderCompilerAvailable(GL _gl)

Returns true if a hader compiler is available, otherwise false.

isGeometryShaderSupported

public static boolean isGeometryShaderSupported(GL _gl)

Returns true if GeometryShader is supported, i.e. whether GLContext is ≥ 3.2 or ARB_geometry_shader4 extension is available.

shaderSource

public static void shaderSource(GL _gl,
                                int shader,
                                CharSequence[] source)

shaderSource

public static void shaderSource(GL _gl,
                                IntBuffer shaders,
                                CharSequence[][] sources)

shaderBinary

public static void shaderBinary(GL _gl,
                                IntBuffer shaders,
                                int binFormat,
                                Buffer bin)

compileShader

public static void compileShader(GL _gl,
                                 IntBuffer shaders)

attachShader

public static void attachShader(GL _gl,
                                int program,
                                IntBuffer shaders)

detachShader

public static void detachShader(GL _gl,
                                int program,
                                IntBuffer shaders)

deleteShader

public static void deleteShader(GL _gl,
                                IntBuffer shaders)

createAndLoadShader

public static boolean createAndLoadShader(GL _gl,
                                          IntBuffer shader,
                                          int shaderType,
                                          int binFormat,
                                          Buffer bin,
                                          PrintStream verboseOut)

createAndCompileShader

public static boolean createAndCompileShader(GL _gl,
                                             IntBuffer shader,
                                             int shaderType,
                                             CharSequence[][] sources,
                                             PrintStream verboseOut)