/**
* Loads the fragment program into a byte array.
*
* @see com.jme.scene.state.FragmentProgramState#load(java.net.URL)
*/
public void load(String programContents) {
try {
byte[] bytes = programContents.getBytes();
program = BufferUtils.createByteBuffer(bytes.length);
program.put(bytes);
program.rewind();
programID = -1;
setNeedsRefresh(true);
} catch (Exception e) {
logger.severe("Could not load fragment program: " + e);
logger.logp(Level.SEVERE, getClass().getName(), "load(URL)", "Exception", e);
}
}
/**
* Update variableID for attribute shadervariable if needed.
*
* @param variable shadervaribale to update ID on
* @param programID shader program context ID
*/
public static void updateAttributeLocation(ShaderVariable variable, int programID) {
if (variable.variableID == -1) {
ByteBuffer nameBuf = BufferUtils.createByteBuffer(variable.name.getBytes().length + 1);
nameBuf.clear();
nameBuf.put(variable.name.getBytes());
nameBuf.rewind();
variable.variableID = ARBVertexShader.glGetAttribLocationARB(programID, nameBuf);
if (variable.variableID == -1) {
logger.severe("Shader attribute [" + variable.name + "] could not be located in shader");
}
}
}
/**
* Update variableID for uniform shadervariable if needed.
*
* @param variable shadervaribale to update ID on
* @param programID shader program context ID
*/
public static void updateUniformLocation(ShaderVariable variable, int programID) {
if (variable.variableID == -1) {
ByteBuffer nameBuf = BufferUtils.createByteBuffer(variable.name.getBytes().length + 1);
nameBuf.clear();
nameBuf.put(variable.name.getBytes());
nameBuf.rewind();
variable.variableID = ARBShaderObjects.glGetUniformLocationARB(programID, nameBuf);
if (variable.variableID == -1) {
logger.severe("Shader uniform [" + variable.name + "] could not be located in shader");
}
}
}
/**
* <code>print</code> renders the specified string to a given (x,y) location. The x, y location is
* in terms of screen coordinates. There are currently two sets of fonts supported: NORMAL and
* ITALICS.
*
* @param r
* @param x the x screen location to start the string render.
* @param y the y screen location to start the string render.
* @param text the String to render.
* @param set the mode of font: NORMAL or ITALICS.
*/
public void print(Renderer r, float x, float y, Vector3f scale, StringBuffer text, int set) {
RendererRecord matRecord =
(RendererRecord) DisplaySystem.getDisplaySystem().getCurrentContext().getRendererRecord();
if (set > 1) {
set = 1;
} else if (set < 0) {
set = 0;
}
boolean alreadyOrtho = r.isInOrthoMode();
if (!alreadyOrtho) r.setOrtho();
else {
matRecord.switchMode(GL11.GL_MODELVIEW);
GL11.glPushMatrix();
GL11.glLoadIdentity();
}
GL11.glTranslatef(x, y, 0);
GL11.glScalef(scale.x, scale.y, scale.z);
GL11.glListBase(base - 32 + (128 * set));
// Put the string into a "pointer"
if (text.length() > scratch.capacity()) {
scratch = BufferUtils.createByteBuffer(text.length());
} else {
scratch.clear();
}
int charLen = text.length();
for (int z = 0; z < charLen; z++) scratch.put((byte) text.charAt(z));
scratch.flip();
matRecord.setCurrentColor(fontColor);
// call the list for each letter in the string.
GL11.glCallLists(scratch);
// set color back to white
matRecord.setCurrentColor(1, 1, 1, 1);
if (!alreadyOrtho) {
r.unsetOrtho();
} else {
matRecord.switchMode(GL11.GL_MODELVIEW);
GL11.glPopMatrix();
}
}
/**
* Loads the fragment program into a byte array.
*
* @see com.jme.scene.state.FragmentProgramState#load(java.net.URL)
*/
public void load(java.net.URL file) {
InputStream inputStream = null;
try {
ByteArrayOutputStream outputStream = new ByteArrayOutputStream(16 * 1024);
inputStream = new BufferedInputStream(file.openStream());
byte[] buffer = new byte[1024];
int byteCount = -1;
// Read the byte content into the output stream first
while ((byteCount = inputStream.read(buffer)) > 0) {
outputStream.write(buffer, 0, byteCount);
}
// Set data with byte content from stream
byte data[] = outputStream.toByteArray();
// Release resources
inputStream.close();
outputStream.close();
program = BufferUtils.createByteBuffer(data.length);
program.put(data);
program.rewind();
programID = -1;
setNeedsRefresh(true);
} catch (Exception e) {
logger.severe("Could not load fragment program: " + e);
logger.logp(Level.SEVERE, getClass().getName(), "load(URL)", "Exception", e);
} finally {
// Ensure that the stream is closed, even if there is an exception.
if (inputStream != null) {
try {
inputStream.close();
} catch (IOException closeFailure) {
logger.log(Level.WARNING, "Failed to close the fragment program", closeFailure);
}
}
}
}
/**
* Constructor instantiates a new <code>LWJGLFont</code> object. The initial color is set to
* white.
*/
public LWJGLFont() {
fontColor = new ColorRGBA(1, 1, 1, 1);
scratch = BufferUtils.createByteBuffer(1);
buildDisplayList();
}