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-rw-r--r--src/de/gamezock/metacraft/ui/ShaderLoader.java91
1 files changed, 58 insertions, 33 deletions
diff --git a/src/de/gamezock/metacraft/ui/ShaderLoader.java b/src/de/gamezock/metacraft/ui/ShaderLoader.java
index 25bc4eb..1f696f8 100644
--- a/src/de/gamezock/metacraft/ui/ShaderLoader.java
+++ b/src/de/gamezock/metacraft/ui/ShaderLoader.java
@@ -4,6 +4,8 @@ import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
+import java.nio.ByteBuffer;
+import java.nio.IntBuffer;
import java.util.AbstractMap;
import java.util.HashMap;
import java.util.Map;
@@ -14,6 +16,23 @@ import javax.media.opengl.GL2;
public class ShaderLoader {
private static Map<Entry<String, String>, Integer> programs = new HashMap<Entry<String, String>, Integer>();
+ static private void printInfoLog(GL2 gl, int object) {
+ IntBuffer lengthBuffer = IntBuffer.allocate(1);
+
+ gl.glGetObjectParameterivARB(object, GL2.GL_OBJECT_INFO_LOG_LENGTH_ARB, lengthBuffer);
+
+ int length = lengthBuffer.get(0);
+
+ if(length > 0) {
+ ByteBuffer log = ByteBuffer.allocate(length);
+
+ IntBuffer foo = IntBuffer.allocate(1);
+ gl.glGetInfoLogARB(object, length, foo, log);
+ System.err.println(new String(log.array()));
+ }
+
+ }
+
static private String readStream(InputStream stream) throws IOException {
BufferedReader reader = new BufferedReader(new InputStreamReader(stream));
String ret = "", line;
@@ -25,48 +44,54 @@ public class ShaderLoader {
return ret;
}
- static boolean load(GL2 gl, String vsName, String fsName) {
+ static private int loadShader(GL2 gl, String name, int type) {
+ int shader = gl.glCreateShaderObjectARB(type);
+
+ try {
+ InputStream stream = ShaderLoader.class.getResourceAsStream("/de/gamezock/metacraft/resources/shaders/" + name);
+
+ String source = readStream(stream);
+
+ gl.glShaderSourceARB(shader, 1, new String[] {source}, null);
+ gl.glCompileShaderARB(shader);
+
+ printInfoLog(gl, shader);
+
+ return shader;
+ } catch (IOException e) {
+ }
+
+ if(shader != 0)
+ gl.glDeleteObjectARB(shader);
+
+ return 0;
+ }
+
+ static public boolean load(GL2 gl, String vsName, String fsName) {
Integer savedProg = programs.get(new AbstractMap.SimpleEntry<String, String>(vsName, fsName));
if(savedProg != null) {
gl.glUseProgram(savedProg);
return true;
}
- int vs = gl.glCreateShader(GL2.GL_VERTEX_SHADER);
- int fs = gl.glCreateShader(GL2.GL_FRAGMENT_SHADER);
+ int vs = loadShader(gl, vsName, GL2.GL_VERTEX_SHADER);
+ int fs = loadShader(gl, fsName, GL2.GL_FRAGMENT_SHADER);
- InputStream vsStream = ShaderLoader.class.getResourceAsStream("/de/gamezock/metacraft/resources/shaders/" + vsName);
- String vsSource;
- try {
- vsSource = readStream(vsStream);
- } catch (IOException e) {
- return false;
- }
-
- gl.glShaderSource(vs, 1, new String[] {vsSource}, null);
- gl.glCompileShader(vs);
+ if(vs != 0 && fs != 0) {
+ int program = gl.glCreateProgramObjectARB();
+ gl.glAttachObjectARB(program, vs);
+ gl.glAttachObjectARB(program, fs);
+ gl.glLinkProgramARB(program);
+
+ printInfoLog(gl, program);
+
+ gl.glUseProgramObjectARB(program);
- InputStream fsStream = ShaderLoader.class.getResourceAsStream("/de/gamezock/metacraft/resources/shaders/" + fsName);
- String fsSource;
- try {
- fsSource = readStream(fsStream);
- } catch (IOException e) {
- return false;
- }
-
- gl.glShaderSource(fs, 1, new String[] {fsSource}, null);
- gl.glCompileShader(fs);
+ programs.put(new AbstractMap.SimpleEntry<String, String>(vsName, fsName), program);
- int program = gl.glCreateProgram();
- gl.glAttachShader(program, vs);
- gl.glAttachShader(program, fs);
- gl.glLinkProgram(program);
- gl.glValidateProgram(program);
+ return true;
+ }
- gl.glUseProgram(program);
-
- programs.put(new AbstractMap.SimpleEntry<String, String>(vsName, fsName), program);
-
- return true;
+ return false;
}
}