Move /webrtc/api/android files to /webrtc/sdk/android

webrtc/api/android/java/src/org/webrtc/GlShader.java

-/*
- *  Copyright 2015 The WebRTC project authors. All Rights Reserved.
- *
- *  Use of this source code is governed by a BSD-style license
- *  that can be found in the LICENSE file in the root of the source
- *  tree. An additional intellectual property rights grant can be found
- *  in the file PATENTS.  All contributing project authors may
- *  be found in the AUTHORS file in the root of the source tree.
- */
-
-package org.webrtc;
-
-import android.opengl.GLES20;
-
-import java.nio.FloatBuffer;
-
-// Helper class for handling OpenGL shaders and shader programs.
-public class GlShader {
-  private static final String TAG = "GlShader";
-
-  private static int compileShader(int shaderType, String source) {
-    final int shader = GLES20.glCreateShader(shaderType);
-    if (shader == 0) {
-      throw new RuntimeException("glCreateShader() failed. GLES20 error: " + GLES20.glGetError());
-    }
-    GLES20.glShaderSource(shader, source);
-    GLES20.glCompileShader(shader);
-    int[] compileStatus = new int[] {GLES20.GL_FALSE};
-    GLES20.glGetShaderiv(shader, GLES20.GL_COMPILE_STATUS, compileStatus, 0);
-    if (compileStatus[0] != GLES20.GL_TRUE) {
-      Logging.e(
-          TAG, "Could not compile shader " + shaderType + ":" + GLES20.glGetShaderInfoLog(shader));
-      throw new RuntimeException(GLES20.glGetShaderInfoLog(shader));
-    }
-    GlUtil.checkNoGLES2Error("compileShader");
-    return shader;
-  }
-
-  private int program;
-
-  public GlShader(String vertexSource, String fragmentSource) {
-    final int vertexShader = compileShader(GLES20.GL_VERTEX_SHADER, vertexSource);
-    final int fragmentShader = compileShader(GLES20.GL_FRAGMENT_SHADER, fragmentSource);
-    program = GLES20.glCreateProgram();
-    if (program == 0) {
-      throw new RuntimeException("glCreateProgram() failed. GLES20 error: " + GLES20.glGetError());
-    }
-    GLES20.glAttachShader(program, vertexShader);
-    GLES20.glAttachShader(program, fragmentShader);
-    GLES20.glLinkProgram(program);
-    int[] linkStatus = new int[] {GLES20.GL_FALSE};
-    GLES20.glGetProgramiv(program, GLES20.GL_LINK_STATUS, linkStatus, 0);
-    if (linkStatus[0] != GLES20.GL_TRUE) {
-      Logging.e(TAG, "Could not link program: " + GLES20.glGetProgramInfoLog(program));
-      throw new RuntimeException(GLES20.glGetProgramInfoLog(program));
-    }
-    // According to the documentation of glLinkProgram():
-    // "After the link operation, applications are free to modify attached shader objects, compile
-    // attached shader objects, detach shader objects, delete shader objects, and attach additional
-    // shader objects. None of these operations affects the information log or the program that is
-    // part of the program object."
-    // But in practice, detaching shaders from the program seems to break some devices. Deleting the
-    // shaders are fine however - it will delete them when they are no longer attached to a program.
-    GLES20.glDeleteShader(vertexShader);
-    GLES20.glDeleteShader(fragmentShader);
-    GlUtil.checkNoGLES2Error("Creating GlShader");
-  }
-
-  public int getAttribLocation(String label) {
-    if (program == -1) {
-      throw new RuntimeException("The program has been released");
-    }
-    int location = GLES20.glGetAttribLocation(program, label);
-    if (location < 0) {
-      throw new RuntimeException("Could not locate '" + label + "' in program");
-    }
-    return location;
-  }
-
-  /**
-   * Enable and upload a vertex array for attribute |label|. The vertex data is specified in
-   * |buffer| with |dimension| number of components per vertex.
-   */
-  public void setVertexAttribArray(String label, int dimension, FloatBuffer buffer) {
-    if (program == -1) {
-      throw new RuntimeException("The program has been released");
-    }
-    int location = getAttribLocation(label);
-    GLES20.glEnableVertexAttribArray(location);
-    GLES20.glVertexAttribPointer(location, dimension, GLES20.GL_FLOAT, false, 0, buffer);
-    GlUtil.checkNoGLES2Error("setVertexAttribArray");
-  }
-
-  public int getUniformLocation(String label) {
-    if (program == -1) {
-      throw new RuntimeException("The program has been released");
-    }
-    int location = GLES20.glGetUniformLocation(program, label);
-    if (location < 0) {
-      throw new RuntimeException("Could not locate uniform '" + label + "' in program");
-    }
-    return location;
-  }
-
-  public void useProgram() {
-    if (program == -1) {
-      throw new RuntimeException("The program has been released");
-    }
-    GLES20.glUseProgram(program);
-    GlUtil.checkNoGLES2Error("glUseProgram");
-  }
-
-  public void release() {
-    Logging.d(TAG, "Deleting shader.");
-    // Delete program, automatically detaching any shaders from it.
-    if (program != -1) {
-      GLES20.glDeleteProgram(program);
-      program = -1;
-    }
-  }
-}