Package org.lwjgl.opengles

Class OESGetProgramBinary

java.lang.Object
org.lwjgl.opengles.OESGetProgramBinary
public class OESGetProgramBinary extends Object
Native bindings to the OES_get_program_binary extension.

This extension introduces two new commands. GetProgramBinaryOES empowers an application to use the GL itself as an offline compiler. The resulting program binary can be reloaded into the GL via ProgramBinaryOES. This is a very useful path for applications that wish to remain portable by shipping pure GLSL source shaders, yet would like to avoid the cost of compiling their shaders at runtime. Instead an application can supply its GLSL source shaders during first application run, or even during installation. The application then compiles and links its shaders and reads back the program binaries. On subsequent runs, only the program binaries need be supplied! Though the level of optimization may not be identical -- the offline shader compiler may have the luxury of more aggressive optimization at its disposal -- program binaries generated online by the GL are interchangeable with those generated offline by an SDK tool.

Note that an implementation supporting this extension need not include an online compiler. That is, it is not required to support loading GLSL shader sources via the ShaderSource command. A query of boolean value SHADER_COMPILER can be used to determine if an implementation supports a shader compiler. If not, the GetProgramBinaryOES command is rendered virtually useless, but the ProgramBinaryOES command may still be used by vendor extensions as a standard method for loading offline-compiled program binaries.

Requires GLES 2.0.

  • Field Details

    • GL_PROGRAM_BINARY_LENGTH_OES

      public static final int GL_PROGRAM_BINARY_LENGTH_OES
      ccepted by the pname parameter of GetProgramiv.
      See Also:

    • GL_NUM_PROGRAM_BINARY_FORMATS_OES

      public static final int GL_NUM_PROGRAM_BINARY_FORMATS_OES
      Accepted by the pname parameter of GetBooleanv, GetIntegerv, and GetFloatv.
      See Also:

    • GL_PROGRAM_BINARY_FORMATS_OES

      public static final int GL_PROGRAM_BINARY_FORMATS_OES
      Accepted by the pname parameter of GetBooleanv, GetIntegerv, and GetFloatv.
      See Also:

  • Method Details

    • nglGetProgramBinaryOES

      public static void nglGetProgramBinaryOES(int program, int bufSize, long length, long binaryFormat, long binary)

    • glGetProgramBinaryOES

      public static void glGetProgramBinaryOES(int program, @Nullable IntBuffer length, IntBuffer binaryFormat, ByteBuffer binary)

    • nglProgramBinaryOES

      public static void nglProgramBinaryOES(int program, int binaryFormat, long binary, int length)

    • glProgramBinaryOES

      public static void glProgramBinaryOES(int program, int binaryFormat, ByteBuffer binary)

    • glGetProgramBinaryOES

      public static void glGetProgramBinaryOES(int program, @Nullable int[] length, int[] binaryFormat, ByteBuffer binary)
      Array version of: GetProgramBinaryOES