model viewer: add support for texture rendering on terrain

2017-01-15 13:06:11 -05:00
parent ffa9a820f1
commit 4ed2260da6
5 changed files with 338 additions and 9 deletions
--- a/model-viewer/src/main/java/net/runelite/modelviewer/ShaderManager.java
+++ b/model-viewer/src/main/java/net/runelite/modelviewer/ShaderManager.java
@@ -0,0 +1,125 @@
+/*
+ * Copyright (c) 2017, Adam <Adam@sigterm.info>
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice, this
+ *    list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ *    this list of conditions and the following disclaimer in the documentation
+ *    and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
+ * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+package net.runelite.modelviewer;
+
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.InputStreamReader;
+import org.apache.commons.io.IOUtils;
+import org.lwjgl.opengl.GL11;
+import org.lwjgl.opengl.GL20;
+import static org.lwjgl.opengl.GL20.GL_INFO_LOG_LENGTH;
+import static org.lwjgl.opengl.GL20.glGetProgrami;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+public class ShaderManager
+{
+	private static final Logger logger = LoggerFactory.getLogger(ShaderManager.class);
+
+	private static final int ERR_LEN = 1024;
+
+	private int program;
+	private int vertexShader;
+	private int fragmentShader;
+
+	public void load(InputStream vertexShaderStream, InputStream fragShaderStream) throws IOException
+	{
+		program = GL20.glCreateProgram();
+		vertexShader = GL20.glCreateShader(GL20.GL_VERTEX_SHADER);
+		fragmentShader = GL20.glCreateShader(GL20.GL_FRAGMENT_SHADER);
+
+		String vertexShaderStr = IOUtils.toString(new InputStreamReader(vertexShaderStream));
+		String fragShaderStr = IOUtils.toString(new InputStreamReader(fragShaderStream));
+
+		GL20.glShaderSource(vertexShader, vertexShaderStr);
+		GL20.glCompileShader(vertexShader);
+
+		if (GL20.glGetShader(vertexShader, GL20.GL_COMPILE_STATUS) == GL11.GL_TRUE)
+		{
+			GL20.glAttachShader(program, vertexShader);
+		}
+		else
+		{
+			String err = GL20.glGetShaderInfoLog(vertexShader, ERR_LEN);
+			logger.warn("Error compiling vertex shader: {}", err);
+		}
+
+		GL20.glShaderSource(fragmentShader, fragShaderStr);
+		GL20.glCompileShader(fragmentShader);
+
+		if (GL20.glGetShader(fragmentShader, GL20.GL_COMPILE_STATUS) == GL11.GL_TRUE)
+		{
+			GL20.glAttachShader(program, fragmentShader);
+		}
+		else
+		{
+			String err = GL20.glGetShaderInfoLog(fragmentShader, ERR_LEN);
+			logger.warn("Error compiling fragment shader: {}", err);
+		}
+
+		GL20.glLinkProgram(program);
+
+		if (GL20.glGetProgram(program, GL20.GL_LINK_STATUS) == GL11.GL_FALSE)
+		{
+			String err = GL20.glGetProgramInfoLog(program, glGetProgrami(program, GL_INFO_LOG_LENGTH));
+			logger.warn("Error linking program: {}", err);
+		}
+
+		GL20.glValidateProgram(program);
+	}
+
+	public void destroy()
+	{
+		GL20.glDeleteShader(vertexShader);
+		GL20.glDeleteShader(fragmentShader);
+		GL20.glDeleteProgram(program);
+	}
+
+	public void use()
+	{
+		GL20.glUseProgram(program);
+	}
+
+	void unuse()
+	{
+		GL20.glUseProgram(0);
+	}
+
+	public int getProgram()
+	{
+		return program;
+	}
+
+	public int getVertexShader()
+	{
+		return vertexShader;
+	}
+
+	public int getFragmentShader()
+	{
+		return fragmentShader;
+	}
+}