1 files changed, 176 insertions, 0 deletions
diff --git a/src/demos/hdr/ARBFPPipeline.java b/src/demos/hdr/ARBFPPipeline.java
new file mode 100755
index 0000000..04ae00b
--- /dev/null
+++ b/src/demos/hdr/ARBFPPipeline.java
@@ -0,0 +1,176 @@
+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]);
+    }
+  }
+}