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package demos.hdr;
import demos.util.FileUtils;
import java.io.IOException;
import java.util.ArrayList;
import java.util.List;
import javax.media.opengl.GL2ES1;
import javax.media.opengl.GL2;
import javax.media.opengl.GLException;
public class ARBFPPipeline implements Pipeline {
private int textureFormat;
public ARBFPPipeline(int textureFormat) {
this.textureFormat = textureFormat;
}
public void init() {
}
public void initFloatingPointTexture(GL2 gl, int textureObject, int w, int h) {
gl.glBindTexture(GL2.GL_TEXTURE_RECTANGLE_ARB, textureObject);
gl.glCopyTexImage2D(GL2.GL_TEXTURE_RECTANGLE_ARB, 0, textureFormat, 0, 0, w, h, 0);
}
public void initTexture(GL2 gl, int textureObject, int w, int h) {
gl.glBindTexture(GL2.GL_TEXTURE_RECTANGLE_ARB, textureObject);
gl.glCopyTexImage2D(GL2.GL_TEXTURE_RECTANGLE_ARB, 0, GL2.GL_RGBA, 0, 0, w, h, 0);
}
public void copyToTexture(GL2 gl, int textureObject, int w, int h) {
gl.glBindTexture(GL2.GL_TEXTURE_RECTANGLE_ARB, textureObject);
gl.glCopyTexSubImage2D(GL2.GL_TEXTURE_RECTANGLE_ARB, 0, 0, 0, 0, 0, w, h);
}
public void bindTexture(GL2 gl, int textureObject) {
gl.glBindTexture(GL2.GL_TEXTURE_RECTANGLE_ARB, textureObject);
}
private List programs = new ArrayList();
public int loadVertexProgram(GL2 gl, String filename) throws IOException {
return loadProgram(gl, filename, GL2.GL_VERTEX_PROGRAM_ARB);
}
public int loadFragmentProgram(GL2 gl, String filename) throws IOException {
return loadProgram(gl, filename, GL2.GL_FRAGMENT_PROGRAM_ARB);
}
private int loadProgram(GL2 gl, String fileName, int profile) throws IOException {
String programBuffer = FileUtils.loadStreamIntoString(getClass().getClassLoader().getResourceAsStream(fileName));
int[] tmpInt = new int[1];
gl.glGenProgramsARB(1, tmpInt, 0);
int res = tmpInt[0];
gl.glBindProgramARB(profile, res);
gl.glProgramStringARB(profile, GL2.GL_PROGRAM_FORMAT_ASCII_ARB, programBuffer.length(), programBuffer);
int[] errPos = new int[1];
gl.glGetIntegerv(GL2.GL_PROGRAM_ERROR_POSITION_ARB, errPos, 0);
if (errPos[0] >= 0) {
String kind = "Program";
if (profile == GL2.GL_VERTEX_PROGRAM_ARB) {
kind = "Vertex program";
} else if (profile == GL2.GL_FRAGMENT_PROGRAM_ARB) {
kind = "Fragment program";
}
System.out.println(kind + " failed to load:");
String errMsg = gl.glGetString(GL2.GL_PROGRAM_ERROR_STRING_ARB);
if (errMsg == null) {
System.out.println("[No error message available]");
} else {
System.out.println("Error message: \"" + errMsg + "\"");
}
System.out.println("Error occurred at position " + errPos[0] + " in program:");
int endPos = errPos[0];
while (endPos < programBuffer.length() && programBuffer.charAt(endPos) != '\n') {
++endPos;
}
System.out.println(programBuffer.substring(errPos[0], endPos));
throw new GLException("Error loading " + kind);
} else {
if (profile == GL2.GL_FRAGMENT_PROGRAM_ARB) {
int[] isNative = new int[1];
gl.glGetProgramiv(GL2.GL_FRAGMENT_PROGRAM_ARB,
GL2.GL_PROGRAM_UNDER_NATIVE_LIMITS_ARB,
isNative, 0);
if (isNative[0] != 1) {
System.out.println("WARNING: fragment program is over native resource limits");
Thread.dumpStack();
}
}
}
return res;
}
public void enableVertexProgram(GL2 gl, int program) {
gl.glBindProgramARB(GL2.GL_VERTEX_PROGRAM_ARB, program);
gl.glEnable(GL2.GL_VERTEX_PROGRAM_ARB);
}
public void enableFragmentProgram(GL2 gl, int program) {
gl.glBindProgramARB(GL2.GL_FRAGMENT_PROGRAM_ARB, program);
gl.glEnable(GL2.GL_FRAGMENT_PROGRAM_ARB);
}
public void disableVertexProgram(GL2 gl) {
gl.glDisable(GL2.GL_VERTEX_PROGRAM_ARB);
}
public void disableFragmentProgram(GL2 gl) {
gl.glDisable(GL2.GL_FRAGMENT_PROGRAM_ARB);
}
public int getNamedParameter(int program, String name) {
throw new RuntimeException("Not supported");
}
public void setVertexProgramParameter1f(GL2 gl, int param, float val) {
if (param < 0) return;
gl.glProgramLocalParameter4fARB(GL2.GL_VERTEX_PROGRAM_ARB, param, val, 0, 0, 0);
}
public void setVertexProgramParameter3f(GL2 gl, int param, float x, float y, float z) {
if (param < 0) return;
gl.glProgramLocalParameter4fARB(GL2.GL_VERTEX_PROGRAM_ARB, param, x, y, z, 0);
}
public void setVertexProgramParameter4f(GL2 gl, int param, float x, float y, float z, float w) {
if (param < 0) return;
gl.glProgramLocalParameter4fARB(GL2.GL_VERTEX_PROGRAM_ARB, param, x, y, z, w);
}
public void setFragmentProgramParameter1f(GL2 gl, int param, float val) {
if (param < 0) return;
gl.glProgramLocalParameter4fARB(GL2.GL_FRAGMENT_PROGRAM_ARB, param, val, 0, 0, 0);
}
public void setFragmentProgramParameter3f(GL2 gl, int param, float x, float y, float z) {
if (param < 0) return;
gl.glProgramLocalParameter4fARB(GL2.GL_FRAGMENT_PROGRAM_ARB, param, x, y, z, 0);
}
public void setFragmentProgramParameter4f(GL2 gl, int param, float x, float y, float z, float w) {
if (param < 0) return;
gl.glProgramLocalParameter4fARB(GL2.GL_FRAGMENT_PROGRAM_ARB, param, x, y, z, w);
}
public void trackModelViewProjectionMatrix(GL2 gl, int param) {
float[] modelView = new float[16];
float[] projection = new float[16];
float[] mvp = new float[16];
// Get matrices
gl.glGetFloatv(GL2.GL_PROJECTION_MATRIX, projection, 0);
gl.glGetFloatv(GL2.GL_MODELVIEW_MATRIX, modelView, 0);
// Multiply together
for (int i = 0; i < 4; i++) {
for (int j = 0; j < 4; j++) {
float sum = 0;
for (int k = 0; k < 4; k++) {
sum += modelView[4 * i + k] * projection[4 * k + j];
}
mvp[4 * i + j] = sum;
}
}
setMatrixParameterfc(gl, param, mvp);
}
public void setMatrixParameterfc(GL2 gl, int param, float[] matrix) {
// Correct for row-major vs. column-major differences
for (int i = 0; i < 4; i++) {
gl.glProgramLocalParameter4fARB(GL2.GL_VERTEX_PROGRAM_ARB, param + i, matrix[i], matrix[4+i], matrix[8+i], matrix[12+i]);
}
}
}
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