protected static int create(final ByteBuffer program) {
final IntBuffer buf = BufferUtils.createIntBuffer(1);
ARBProgram.glGenProgramsARB(buf);
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);
}
/**
* Queries OpenGL for errors in the vertex program. Errors are logged as SEVERE, noting both the
* line number and message.
*/
private static void checkProgramError() {
if (GL11.glGetError() == GL11.GL_INVALID_OPERATION) {
// retrieve the error position
final IntBuffer errorloc = BufferUtils.createIntBuffer(16);
GL11.glGetInteger(ARBProgram.GL_PROGRAM_ERROR_POSITION_ARB, errorloc);
logger.severe(
"Error "
+ GL11.glGetString(ARBProgram.GL_PROGRAM_ERROR_STRING_ARB)
+ " in vertex program on line "
+ errorloc.get(0));
}
}
/**
* Queries OpenGL for errors in the vertex program. Errors are logged as SEVERE, noting both the
* line number and message.
*/
private static void checkProgramError() {
final GL gl = GLU.getCurrentGL();
if (gl.glGetError() == GL.GL_INVALID_OPERATION) {
// retrieve the error position
final IntBuffer errorloc = BufferUtils.createIntBuffer(16);
gl.glGetIntegerv(GL.GL_PROGRAM_ERROR_POSITION_ARB, errorloc); // TODO Check for integer
logger.severe(
"Error "
+ gl.glGetString(GL.GL_PROGRAM_ERROR_STRING_ARB)
+ " in vertex program on line "
+ errorloc.get(0));
}
}
/**
* <code>setupTexture</code> initializes a new Texture object for use with TextureRenderer.
* Generates a valid gl texture id for this texture and inits the data type for the texture.
*/
public void setupTexture(final Texture tex) {
if (tex.getType() != Type.TwoDimensional) {
throw new IllegalArgumentException("Unsupported type: " + tex.getType());
}
final RenderContext context = ContextManager.getCurrentContext();
final TextureStateRecord record =
(TextureStateRecord) context.getStateRecord(RenderState.StateType.Texture);
// check if we are already setup... if so, throw error.
if (tex.getTextureKey() == null) {
tex.setTextureKey(TextureKey.getRTTKey(tex.getMinificationFilter()));
} else if (tex.getTextureIdForContext(context.getGlContextRep()) != 0) {
throw new Ardor3dException("Texture is already setup and has id.");
}
// Create the texture
final IntBuffer ibuf = BufferUtils.createIntBuffer(1);
GL11.glGenTextures(ibuf);
final int textureId = ibuf.get(0);
tex.setTextureIdForContext(context.getGlContextRep(), textureId);
LwjglTextureStateUtil.doTextureBind(tex, 0, true);
// Initialize our texture with some default data.
final int internalFormat = LwjglTextureUtil.getGLInternalFormat(tex.getTextureStoreFormat());
final int dataFormat =
LwjglTextureUtil.getGLPixelFormatFromStoreFormat(tex.getTextureStoreFormat());
final int pixelDataType =
LwjglTextureUtil.getGLPixelDataType(tex.getRenderedTexturePixelDataType());
GL11.glTexImage2D(
GL11.GL_TEXTURE_2D,
0,
internalFormat,
_width,
_height,
0,
dataFormat,
pixelDataType,
(ByteBuffer) null);
// Setup filtering and wrap
final TextureRecord texRecord = record.getTextureRecord(textureId, tex.getType());
LwjglTextureStateUtil.applyFilter(tex, texRecord, 0, record, context.getCapabilities());
LwjglTextureStateUtil.applyWrap(tex, texRecord, 0, record, context.getCapabilities());
logger.fine("setup pbuffer tex" + textureId + ": " + _width + "," + _height);
}
private static int create(final ByteBuffer program) {
final GL gl = GLU.getCurrentGL();
final IntBuffer buf = BufferUtils.createIntBuffer(1);
gl.glGenProgramsARB(buf.limit(), buf);
gl.glBindProgramARB(GL.GL_VERTEX_PROGRAM_ARB, buf.get(0));
final byte array[] = new byte[program.limit()];
program.rewind();
program.get(array);
gl.glProgramStringARB(
GL.GL_VERTEX_PROGRAM_ARB, GL.GL_PROGRAM_FORMAT_ASCII_ARB, array.length, new String(array));
checkProgramError();
return buf.get(0);
}
private void recreateBuffers() {
// determine vert quantity - first the sphere caps
final int sampleLines = (2 * sphereSamples - 1 + axisSamples);
final int verts = (radialSamples + 1) * sampleLines + 2;
_meshData.setVertexBuffer(BufferUtils.createVector3Buffer(_meshData.getVertexBuffer(), verts));
// allocate normals
_meshData.setNormalBuffer(BufferUtils.createVector3Buffer(_meshData.getNormalBuffer(), verts));
// allocate texture coordinates
_meshData.setTextureCoords(new TexCoords(BufferUtils.createVector2Buffer(verts)), 0);
// determine tri quantity
final int tris = 2 * radialSamples * sampleLines;
_meshData.setIndexBuffer(BufferUtils.createIntBuffer(_meshData.getIndexBuffer(), 3 * tris));
setGeometryData();
setIndexData();
}
/**
* Constructor
*
* @param color
*/
public SimpleCrosshair(ReadOnlyColorRGBA color) {
super("Crosshair");
ReadOnlyColorRGBA[] crosshairColor = {color, color, color, color};
getMeshData().setIndexMode(IndexMode.Lines);
getMeshData().setVertexBuffer(BufferUtils.createFloatBuffer(crosshairVertex));
FloatBuffer colorBuffer = BufferUtils.createFloatBuffer(crosshairColor);
colorBuffer.rewind();
getMeshData().setColorBuffer(colorBuffer);
getMeshData().setIndexBuffer(BufferUtils.createIntBuffer(crosshairIndex));
getMeshData().getIndexBuffer().limit(4);
getMeshData().getIndexBuffer().rewind();
getSceneHints().setAllPickingHints(false);
setModelBound(new BoundingBox());
updateModelBound();
MaterialState crosshairMaterialState = new MaterialState();
crosshairMaterialState.setColorMaterial(MaterialState.ColorMaterial.Emissive);
crosshairMaterialState.setEnabled(true);
getSceneHints().setLightCombineMode(LightCombineMode.Off);
setRenderState(crosshairMaterialState);
updateGeometricState(0, true);
}
private Mesh createDegenerateStripMesh() {
final Mesh mesh = new Mesh();
final MeshData meshData = mesh.getMeshData();
final FloatBuffer vertexBuffer = BufferUtils.createVector3Buffer(totalSize);
final FloatBuffer normalBuffer = BufferUtils.createVector3Buffer(totalSize);
final FloatBuffer textureBuffer = BufferUtils.createVector2Buffer(totalSize);
final IntBuffer indexBuffer =
BufferUtils.createIntBuffer((ySize - 1) * xSize * 2 + (ySize - 1) * 2);
for (int y = 0; y < ySize; y++) {
for (int x = 0; x < xSize; x++) {
vertexBuffer.put(x).put(y).put(0);
normalBuffer.put(0).put(0).put(1);
textureBuffer.put(x).put(y);
}
}
for (int y = 0; y < ySize - 1; y++) {
for (int x = 0; x < xSize; x++) {
final int index = y * xSize + x;
indexBuffer.put(index);
indexBuffer.put(index + xSize);
}
final int index = (y + 1) * xSize;
indexBuffer.put(index + xSize - 1);
indexBuffer.put(index);
}
meshData.setVertexBuffer(vertexBuffer);
meshData.setNormalBuffer(normalBuffer);
meshData.setTextureBuffer(textureBuffer, 0);
meshData.setIndexBuffer(indexBuffer);
meshData.setIndexMode(IndexMode.TriangleStrip);
return mesh;
}
/**
* Check for program errors. If an error is detected, program exits.
*
* @param compiled the compiler state for a given shader
* @param id shader's id
*/
private static void checkProgramError(final IntBuffer compiled, final int id) {
final GL gl = GLU.getCurrentGL();
if (compiled.get(0) == GL.GL_FALSE) {
final IntBuffer iVal = BufferUtils.createIntBuffer(1);
gl.glGetObjectParameterivARB(id, GL.GL_OBJECT_INFO_LOG_LENGTH_ARB, iVal);
final int length = iVal.get(0);
String out = null;
if (length > 0) {
final ByteBuffer infoLog = BufferUtils.createByteBuffer(length);
gl.glGetInfoLogARB(id, infoLog.limit(), iVal, infoLog);
final byte[] infoBytes = new byte[length];
infoLog.get(infoBytes);
out = new String(infoBytes);
}
logger.severe(out);
throw new Ardor3dException("Error compiling GLSL shader: " + out);
}
}
private static void checkLinkError(final int programId) {
final GL gl = GLU.getCurrentGL();
final IntBuffer compiled = BufferUtils.createIntBuffer(1);
gl.glGetObjectParameterivARB(programId, GL.GL_LINK_STATUS, compiled);
if (compiled.get(0) == GL.GL_FALSE) {
gl.glGetObjectParameterivARB(programId, GL.GL_INFO_LOG_LENGTH, compiled);
final int length = compiled.get(0);
String out = null;
if (length > 0) {
final ByteBuffer infoLog = BufferUtils.createByteBuffer(length);
gl.glGetInfoLogARB(programId, infoLog.limit(), compiled, infoLog);
final byte[] infoBytes = new byte[length];
infoLog.get(infoBytes);
out = new String(infoBytes);
}
logger.severe(out);
// throw new Ardor3dException("Error linking GLSL shader: " + out);
}
}
protected static void sendToGL(final GLSLShaderObjectsState state) {
final GL gl = GLU.getCurrentGL();
if (state.getVertexShader() == null && state.getFragmentShader() == null) {
logger.warning("Could not find shader resources!" + "(both inputbuffers are null)");
state._needSendShader = false;
return;
}
if (state._programID == -1) {
state._programID = gl.glCreateProgramObjectARB();
}
if (state.getVertexShader() != null) {
if (state._vertexShaderID != -1) {
removeVertShader(state);
}
state._vertexShaderID = gl.glCreateShaderObjectARB(GL.GL_VERTEX_SHADER_ARB);
// Create the sources
final byte array[] = new byte[state.getVertexShader().limit()];
state.getVertexShader().rewind();
state.getVertexShader().get(array);
gl.glShaderSourceARB(
state._vertexShaderID, 1, new String[] {new String(array)}, new int[] {array.length}, 0);
// Compile the vertex shader
final IntBuffer compiled = BufferUtils.createIntBuffer(1);
gl.glCompileShaderARB(state._vertexShaderID);
gl.glGetObjectParameterivARB(
state._vertexShaderID, GL.GL_OBJECT_COMPILE_STATUS_ARB, compiled);
checkProgramError(compiled, state._vertexShaderID);
// Attach the program
gl.glAttachObjectARB(state._programID, state._vertexShaderID);
} else if (state._vertexShaderID != -1) {
removeVertShader(state);
state._vertexShaderID = -1;
}
if (state.getFragmentShader() != null) {
if (state._fragmentShaderID != -1) {
removeFragShader(state);
}
state._fragmentShaderID = gl.glCreateShaderObjectARB(GL.GL_FRAGMENT_SHADER_ARB);
// Create the sources
final byte array[] = new byte[state.getFragmentShader().limit()];
state.getFragmentShader().rewind();
state.getFragmentShader().get(array);
gl.glShaderSourceARB(
state._fragmentShaderID,
1,
new String[] {new String(array)},
new int[] {array.length},
0);
// Compile the fragment shader
final IntBuffer compiled = BufferUtils.createIntBuffer(1);
gl.glCompileShaderARB(state._fragmentShaderID);
gl.glGetObjectParameterivARB(
state._fragmentShaderID, GL.GL_OBJECT_COMPILE_STATUS_ARB, compiled);
checkProgramError(compiled, state._fragmentShaderID);
// Attach the program
gl.glAttachObjectARB(state._programID, state._fragmentShaderID);
} else if (state._fragmentShaderID != -1) {
removeFragShader(state);
state._fragmentShaderID = -1;
}
gl.glLinkProgramARB(state._programID);
checkLinkError(state._programID);
state.setNeedsRefresh(true);
state._needSendShader = false;
}
public LwjglContextCapabilities(final org.lwjgl.opengl.ContextCapabilities caps) {
final IntBuffer buf = BufferUtils.createIntBuffer(16);
_supportsVBO = caps.GL_ARB_vertex_buffer_object;
_supportsGL1_2 = caps.OpenGL12;
_supportsMultisample = caps.GL_ARB_multisample;
_supportsConstantColor = _supportsEq = caps.GL_ARB_imaging;
_supportsSeparateFunc = caps.GL_EXT_blend_func_separate;
_supportsSeparateEq = caps.GL_EXT_blend_equation_separate;
_supportsMinMax = caps.GL_EXT_blend_minmax;
_supportsSubtract = caps.GL_EXT_blend_subtract;
_supportsFogCoords = caps.GL_EXT_fog_coord;
_supportsFragmentProgram = caps.GL_ARB_fragment_program;
_supportsVertexProgram = caps.GL_ARB_vertex_program;
_supportsTextureLodBias = caps.GL_EXT_texture_lod_bias;
if (_supportsTextureLodBias) {
GL11.glGetInteger(EXTTextureLODBias.GL_MAX_TEXTURE_LOD_BIAS_EXT, buf);
_maxTextureLodBias = buf.get(0);
} else {
_maxTextureLodBias = 0f;
}
_glslSupported =
caps.GL_ARB_shader_objects
&& caps.GL_ARB_fragment_shader
&& caps.GL_ARB_vertex_shader
&& caps.GL_ARB_shading_language_100;
if (_glslSupported) {
GL11.glGetInteger(ARBVertexShader.GL_MAX_VERTEX_ATTRIBS_ARB, buf);
_maxGLSLVertexAttribs = buf.get(0);
}
// Pbuffer
_pbufferSupported = caps.GL_ARB_pixel_buffer_object;
// FBO
_fboSupported = caps.GL_EXT_framebuffer_object;
if (_fboSupported) {
if (caps.GL_ARB_draw_buffers) {
GL11.glGetInteger(EXTFramebufferObject.GL_MAX_COLOR_ATTACHMENTS_EXT, buf);
_maxFBOColorAttachments = buf.get(0);
} else {
_maxFBOColorAttachments = 1;
}
// Max multisample samples.
if (caps.GL_EXT_framebuffer_multisample && caps.GL_EXT_framebuffer_blit) {
GL11.glGetInteger(EXTFramebufferMultisample.GL_MAX_SAMPLES_EXT, buf);
_maxFBOSamples = buf.get(0);
} else {
_maxFBOSamples = 0;
}
} else {
_maxFBOColorAttachments = 0;
}
_twoSidedStencilSupport = caps.GL_EXT_stencil_two_side;
_stencilWrapSupport = caps.GL_EXT_stencil_wrap;
// number of available auxiliary draw buffers
GL11.glGetInteger(GL11.GL_AUX_BUFFERS, buf);
_numAuxDrawBuffers = buf.get(0);
// max texture size.
GL11.glGetInteger(GL11.GL_MAX_TEXTURE_SIZE, buf);
_maxTextureSize = buf.get(0);
// Check for support of multitextures.
_supportsMultiTexture = caps.GL_ARB_multitexture;
// Check for support of fixed function dot3 environment settings
_supportsEnvDot3 = caps.GL_ARB_texture_env_dot3;
// Check for support of fixed function dot3 environment settings
_supportsEnvCombine = caps.GL_ARB_texture_env_combine;
// Check for support of automatic mipmap generation
_automaticMipMaps = caps.GL_SGIS_generate_mipmap;
_supportsDepthTexture = caps.GL_ARB_depth_texture;
_supportsShadow = caps.GL_ARB_shadow;
// If we do support multitexturing, find out how many textures we
// can handle.
if (_supportsMultiTexture) {
GL11.glGetInteger(ARBMultitexture.GL_MAX_TEXTURE_UNITS_ARB, buf);
_numFixedTexUnits = buf.get(0);
} else {
_numFixedTexUnits = 1;
}
// Go on to check number of texture units supported for vertex and
// fragment shaders
if (caps.GL_ARB_shader_objects && caps.GL_ARB_vertex_shader && caps.GL_ARB_fragment_shader) {
GL11.glGetInteger(ARBVertexShader.GL_MAX_VERTEX_TEXTURE_IMAGE_UNITS_ARB, buf);
_numVertexTexUnits = buf.get(0);
GL11.glGetInteger(ARBFragmentShader.GL_MAX_TEXTURE_IMAGE_UNITS_ARB, buf);
_numFragmentTexUnits = buf.get(0);
GL11.glGetInteger(ARBFragmentShader.GL_MAX_TEXTURE_COORDS_ARB, buf);
_numFragmentTexCoordUnits = buf.get(0);
} else {
// based on nvidia dev doc:
// http://developer.nvidia.com/object/General_FAQ.html#t6
// "For GPUs that do not support GL_ARB_fragment_program and
// GL_NV_fragment_program, those two limits are set equal to
// GL_MAX_TEXTURE_UNITS."
_numFragmentTexCoordUnits = _numFixedTexUnits;
_numFragmentTexUnits = _numFixedTexUnits;
// We'll set this to 0 for now since we do not know:
_numVertexTexUnits = 0;
}
// Now determine the maximum number of supported texture units
_numTotalTexUnits =
Math.max(
_numFragmentTexCoordUnits,
Math.max(_numFixedTexUnits, Math.max(_numFragmentTexUnits, _numVertexTexUnits)));
// Check for S3 texture compression capability.
_supportsS3TCCompression = caps.GL_EXT_texture_compression_s3tc;
// Check for 3D texture capability.
_supportsTexture3D = caps.OpenGL12;
// Check for cubemap capability.
_supportsTextureCubeMap = caps.GL_ARB_texture_cube_map;
// See if we support anisotropic filtering
_supportsAniso = caps.GL_EXT_texture_filter_anisotropic;
if (_supportsAniso) {
// Due to LWJGL buffer check, you can't use smaller sized
// buffers (min_size = 16 for glGetFloat()).
final FloatBuffer max_a = BufferUtils.createFloatBuffer(16);
max_a.rewind();
// Grab the maximum anisotropic filter.
GL11.glGetFloat(EXTTextureFilterAnisotropic.GL_MAX_TEXTURE_MAX_ANISOTROPY_EXT, max_a);
// set max.
_maxAnisotropic = max_a.get(0);
}
// See if we support textures that are not power of 2 in size.
_supportsNonPowerTwo = caps.GL_ARB_texture_non_power_of_two;
// See if we support textures that do not have width == height.
_supportsRectangular = caps.GL_ARB_texture_rectangle;
_supportsMirroredRepeat = caps.GL_ARB_texture_mirrored_repeat;
_supportsMirrorClamp =
_supportsMirrorEdgeClamp = _supportsMirrorBorderClamp = caps.GL_EXT_texture_mirror_clamp;
_supportsBorderClamp = caps.GL_ARB_texture_border_clamp;
_supportsEdgeClamp = _supportsGL1_2;
}