Example usage for org.lwjgl.opengl GL11 glGetError

Introduction

In this page you can find the example usage for org.lwjgl.opengl GL11 glGetError.

Prototype

@NativeType("GLenum")
public static int glGetError() 

Source Link

Document

Returns error information.

Usage

From source file:org.meanworks.engine.render.geometry.mesh.renderers.VAOMeshRenderer.java

License:Open Source License

/**
 * Compiles this mesh and makes sure all attributes are set up correctly.
 *///from   www. ja  v  a2s.  c o  m
public boolean compile() {

    // Preliminary check
    for (BufferEntry bufferEntry : vertexBuffers) {
        if (bufferEntry == null || bufferEntry.buffer == null || bufferEntry.bufferAttributes.size() == 0) {
            EngineLogger.error("Could not compile Mesh, invalid buffer entry.");
            return false;
        }
    }

    if (vertexBufferArray == null) {
        vertexBufferArray = new VertexBufferArray();
    }

    vertexBufferArray.bind();
    {
        for (BufferEntry bufferEntry : vertexBuffers) {
            bufferEntry.buffer.bind();
            for (BufferAttribute bufferAttribute : bufferEntry.bufferAttributes) {
                GL20.glEnableVertexAttribArray(bufferAttribute.index);
                GL20.glVertexAttribPointer(bufferAttribute.index, bufferAttribute.size, bufferAttribute.type,
                        bufferAttribute.normalized, bufferAttribute.stride, bufferAttribute.bufferOffset);
            }
        }

        if (indexBuffer != null) {
            indexBuffer.bind();
        }
    }
    vertexBufferArray.unbind();

    int error = GL11.glGetError();
    if (error != 0) {
        EngineLogger.error("Could not compile Mesh, " + GLU.gluErrorString(error));

        return false;
    }

    return true;
}

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From source file:org.minetweak.rendering.ChunkMeshBuilder.java

License:Apache License

public static void generateChunkMesh(Chunk chunk, MeshType meshType) {
    if (DEBUG) {//w  w  w .ja  v a  2 s . c  o  m
        System.out.println("Building " + meshType.name() + " Mesh for " + chunk.toString() + "...");
    }

    /* Make sure there are no list edits anymore */
    chunk.performListChanges();

    ChunkMesh mesh = chunk.getMesh();
    mesh.destroy(meshType);

    /* Compute vertex count */
    int vertexCount = chunk.getVertexCount(meshType);
    if (DEBUG) {
        System.out.println("\tVertex Count = " + vertexCount);
    }
    /*
     * If there are no faces visible yet (because of generating busy), don't
     * create a buffer
     */
    if (vertexCount == 0) {
        return;
    }
    mesh.setVertexCount(meshType, vertexCount);

    /* Create a buffer */
    int vbo = BufferManager.getInstance().createBuffer();
    mesh.setVBO(meshType, vbo);

    /* Bind the buffer */
    GL15.glBindBuffer(GL15.GL_ARRAY_BUFFER, vbo);

    /* Allocate size for the buffer */
    int size = vertexCount * STRIDE * FLOAT_SIZE;
    GL15.glBufferData(GL15.GL_ARRAY_BUFFER, size, GL15.GL_STATIC_DRAW);

    if (DEBUG) {
        System.out.println(
                "\tCreate VBO: " + vbo + " with size = " + size + " (ERROR: " + GL11.glGetError() + ")");
    }

    /* Get the native buffer to write to */
    ByteBuffer byteBuffer = GL15.glMapBuffer(GL15.GL_ARRAY_BUFFER, GL15.GL_WRITE_ONLY, size, null);
    if (byteBuffer == null) {
        System.out.println("\tCouldn't create a native VBO!: GL Error Code = " + GL11.glGetError());

        GL15.glUnmapBuffer(GL15.GL_ARRAY_BUFFER);
        GL15.glBindBuffer(GL15.GL_ARRAY_BUFFER, 0);

        mesh.destroy(meshType);
        Thread.dumpStack();
        mesh.setVBO(meshType, -1);
        mesh.setVertexCount(meshType, 0);

        return;
    }

    FloatBuffer vertexBuffer = byteBuffer.asFloatBuffer();

    /* Store all vertices in the buffer */
    USED_SIZE = 0;

    /* Local temporary variables, used to speed up */
    IntList blockList = chunk.getVisibleBlocks();
    int blockIndex = -1;
    byte blockType = 0;
    boolean special = false;
    Vec3i vec = new Vec3i();
    BlockType type;
    Block block = null;
    LightBuffer lightBuffer = chunk.getLightBuffer();
    byte faceMask = 0;

    /* Iterate over the blocks */
    for (int i = 0; i < blockList.size(); ++i) {
        blockIndex = blockList.get(i);
        blockType = chunk.getChunkData().getBlockType(blockIndex);
        if (blockType == 0) {
            continue;
        }
        special = chunk.getChunkData().isSpecial(blockIndex);
        type = _blockManager.getBlockType(blockType);

        if ((meshType == MeshType.OPAQUE && !type.isTranslucent() && type.hasNormalAABB())
                || (meshType == MeshType.TRANSLUCENT && (type.isTranslucent() || !type.hasNormalAABB()))) {

            ChunkData.indexToPosition(blockIndex, vec);

            /* Build the light buffer */

            vec.setX(vec.x() + chunk.getAbsoluteX());
            vec.setZ(vec.z() + chunk.getAbsoluteZ());

            lightBuffer.setReferencePoint(vec.x(), vec.y(), vec.z());

            if (special) {
                block = chunk.getChunkData().getSpecialBlock(blockIndex);
                if (block.isVisible()) {
                    block.storeInVBO(vertexBuffer, lightBuffer);
                }
            } else {
                if (type.isCrossed()) {
                    type.getCrossedBlockBrush().storeInVBO(vertexBuffer, vec.x() + 0.5f, vec.y() + 0.5f,
                            vec.z() + 0.5f, lightBuffer);
                } else {
                    faceMask = chunk.getChunkData().getFaceMask(blockIndex);
                    type.getDefaultBlockBrush().setFaceMask(faceMask);
                    type.getBrush().storeInVBO(vertexBuffer, vec.x() + 0.5f, vec.y() + 0.5f, vec.z() + 0.5f,
                            lightBuffer);
                }
            }
        }
    }

    /* Perform a check */
    if (USED_SIZE != STRIDE * FLOAT_SIZE * mesh.getVertexCount(meshType)) {
        System.out.println("\t[WARNING!]: Used size = " + USED_SIZE);
        System.out.println("\t[WARNING!]: Vertex count = " + USED_SIZE / STRIDE / FLOAT_SIZE);
        mesh.setVertexCount(meshType, USED_SIZE / STRIDE / FLOAT_SIZE);
    }

    byteBuffer.flip();

    GL15.glUnmapBuffer(GL15.GL_ARRAY_BUFFER);
    GL15.glBindBuffer(GL15.GL_ARRAY_BUFFER, 0);

}

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From source file:processing.opengl.PLWJGL.java

License:Open Source License

@Override
public int getError() {
    return GL11.glGetError();
}

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From source file:thebounzer.org.lwgldemo.glutils.ShaderProgram.java

License:Open Source License

private boolean validateProgram(int programId) {
    GL20.glLinkProgram(programId);//from w w w .j a v  a  2 s.com
    GL20.glValidateProgram(programId);
    boolean result = true;
    int errorCheckValue = GL11.glGetError();
    if (errorCheckValue != GL11.GL_NO_ERROR) {
        logger.log(Level.SEVERE, "ERROR - Could not create the shaders:{0}",
                GLU.gluErrorString(errorCheckValue));
        result = false;
    }
    return result;
}

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From source file:uk.co.ifs_studios.engine.shader.ShaderProgram.java

License:Open Source License

/**
 * Link and validate shader program.//from ww w  . j  ava 2s.  c om
 */
public void link() {
    GL20.glLinkProgram(this.id);
    GL20.glValidateProgram(this.id);

    int error = GL11.glGetError();
    if (error != GL11.GL_NO_ERROR) {
        EngineLogger.error(new ShaderException("Couldn't link and validate shader program.", null));
    }
}

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From source file:zsawyer.mods.stereoscopic3d.DebugUtil.java

License:Open Source License

/**
 * Checks for an OpenGL error. If there is one, throws a runtime exception.
 *//*from ww  w. ja  v  a2  s  .c  om*/
public static void checkGLError() throws RuntimeException {
    int var2 = GL11.glGetError();

    if (var2 != 0) {
        String var3 = GLU.gluErrorString(var2);
        throw new RuntimeException("GL ERROR: " + var3 + "(" + var2 + ")");
    }
}

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