41 lines
1.2 KiB
Java
41 lines
1.2 KiB
Java
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package com.xscm.moduleutil.widget;
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import java.nio.ByteBuffer;
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import java.nio.ByteOrder;
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import java.nio.FloatBuffer;
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import android.opengl.GLES20;
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import android.util.Log;
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public class ShaderUtils {
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private static final String TAG = "ShaderUtils";
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// 创建并编译着色器
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public static int loadShader(int type, String shaderCode) {
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int shader = GLES20.glCreateShader(type);
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GLES20.glShaderSource(shader, shaderCode);
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GLES20.glCompileShader(shader);
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int[] compiled = new int[1];
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GLES20.glGetShaderiv(shader, GLES20.GL_COMPILE_STATUS, compiled, 0);
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if (compiled[0] == 0) {
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Log.e(TAG, "Could NOT compile shader: " + GLES20.glGetShaderInfoLog(shader));
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GLES20.glDeleteShader(shader);
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return 0;
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}
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return shader;
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}
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// 创建 FloatBuffer
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public static FloatBuffer createFloatBuffer(float[] array) {
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ByteBuffer bb = ByteBuffer.allocateDirect(array.length * 4);
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bb.order(ByteOrder.nativeOrder());
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FloatBuffer buffer = bb.asFloatBuffer();
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buffer.put(array);
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buffer.position(0);
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return buffer;
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}
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}
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