Example usage for org.lwjgl.opengl ARBVertexProgram GL_VERTEX_PROGRAM_ARB

Introduction

In this page you can find the example usage for org.lwjgl.opengl ARBVertexProgram GL_VERTEX_PROGRAM_ARB.

Prototype

int GL_VERTEX_PROGRAM_ARB

To view the source code for org.lwjgl.opengl ARBVertexProgram GL_VERTEX_PROGRAM_ARB.

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Document

Accepted by the cap parameter of Disable, Enable, and IsEnabled, by the pname parameter of GetBooleanv, GetIntegerv, GetFloatv, and GetDoublev, and by the target parameter of ProgramStringARB, BindProgramARB, ProgramEnvParameter4[df][v]ARB, ProgramLocalParameter4[df][v]ARB, GetProgramEnvParameter[df]vARB, GetProgramLocalParameter[df]vARB, GetProgramivARB, and GetProgramStringARB.

Usage

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

License:Open Source License

protected static int create(final ByteBuffer program) {

    final IntBuffer buf = BufferUtils.createIntBuffer(1);

    ARBProgram.glGenProgramsARB(buf);//from  w ww  .j  av  a2 s  .co m
    ARBProgram.glBindProgramARB(ARBVertexProgram.GL_VERTEX_PROGRAM_ARB, buf.get(0));
    ARBProgram.glProgramStringARB(ARBVertexProgram.GL_VERTEX_PROGRAM_ARB,
            ARBProgram.GL_PROGRAM_FORMAT_ASCII_ARB, program);

    checkProgramError();

    return buf.get(0);
}

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

License:Open Source License

/**
 * Applies this vertex program to the current scene. Checks if the GL_ARB_vertex_program extension is supported
 * before attempting to enable this program.
 * //from  ww  w  .  ja v a 2  s .c o  m
 * @see com.ardor3d.renderer.state.RenderState#apply()
 */
public static void apply(final VertexProgramState state) {
    final RenderContext context = ContextManager.getCurrentContext();
    if (context.getCapabilities().isVertexProgramSupported()) {
        // ask for the current state record
        final VertexProgramStateRecord record = (VertexProgramStateRecord) context
                .getStateRecord(StateType.VertexProgram);
        context.setCurrentState(StateType.VertexProgram, state);

        if (!record.isValid() || record.getReference() != state) {
            record.setReference(state);
            if (state.isEnabled()) {
                // Vertex program not yet loaded
                if (state._getProgramID() == -1) {
                    if (state.getProgramAsBuffer() != null) {
                        final int id = create(state.getProgramAsBuffer());
                        state._setProgramID(id);
                    } else {
                        return;
                    }
                }

                GL11.glEnable(ARBVertexProgram.GL_VERTEX_PROGRAM_ARB);
                ARBProgram.glBindProgramARB(ARBVertexProgram.GL_VERTEX_PROGRAM_ARB, state._getProgramID());

                // load environmental parameters...
                for (int i = 0; i < VertexProgramState._getEnvParameters().length; i++) {
                    if (VertexProgramState._getEnvParameters()[i] != null) {
                        ARBProgram.glProgramEnvParameter4fARB(ARBVertexProgram.GL_VERTEX_PROGRAM_ARB, i,
                                VertexProgramState._getEnvParameters()[i][0],
                                VertexProgramState._getEnvParameters()[i][1],
                                VertexProgramState._getEnvParameters()[i][2],
                                VertexProgramState._getEnvParameters()[i][3]);
                    }
                }

                // load local parameters...
                if (state.isUsingParameters()) {
                    // no parameters are used
                    for (int i = 0; i < state._getParameters().length; i++) {
                        if (state._getParameters()[i] != null) {
                            ARBProgram.glProgramLocalParameter4fARB(ARBVertexProgram.GL_VERTEX_PROGRAM_ARB, i,
                                    state._getParameters()[i][0], state._getParameters()[i][1],
                                    state._getParameters()[i][2], state._getParameters()[i][3]);
                        }
                    }
                }

            } else {
                GL11.glDisable(ARBVertexProgram.GL_VERTEX_PROGRAM_ARB);
            }
        }

        if (!record.isValid()) {
            record.validate();
        }
    }
}

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