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Diffstat (limited to 'src/jogl/classes/com/jogamp/opengl/util/glsl/ShaderUtil.java')
-rw-r--r--src/jogl/classes/com/jogamp/opengl/util/glsl/ShaderUtil.java99
1 files changed, 62 insertions, 37 deletions
diff --git a/src/jogl/classes/com/jogamp/opengl/util/glsl/ShaderUtil.java b/src/jogl/classes/com/jogamp/opengl/util/glsl/ShaderUtil.java
index 40c052498..5cd384c58 100644
--- a/src/jogl/classes/com/jogamp/opengl/util/glsl/ShaderUtil.java
+++ b/src/jogl/classes/com/jogamp/opengl/util/glsl/ShaderUtil.java
@@ -1,21 +1,21 @@
/*
* Copyright (c) 2009 Sun Microsystems, Inc. All Rights Reserved.
- *
+ *
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
- *
+ *
* - Redistribution of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
- *
+ *
* - Redistribution 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.
- *
+ *
* Neither the name of Sun Microsystems, Inc. or the names of
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
- *
+ *
* This software is provided "AS IS," without a warranty of any kind. ALL
* EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND WARRANTIES,
* INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, FITNESS FOR A
@@ -28,7 +28,7 @@
* DAMAGES, HOWEVER CAUSED AND REGARDLESS OF THE THEORY OF LIABILITY,
* ARISING OUT OF THE USE OF OR INABILITY TO USE THIS SOFTWARE, EVEN IF
* SUN HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.
- *
+ *
*/
package com.jogamp.opengl.util.glsl;
@@ -40,6 +40,7 @@ import java.util.*;
import javax.media.opengl.*;
import com.jogamp.common.nio.Buffers;
+import com.jogamp.opengl.GLExtensions;
public class ShaderUtil {
public static String getShaderInfoLog(GL _gl, int shaderObj) {
@@ -116,11 +117,11 @@ public class ShaderUtil {
}
return true;
}
-
+
/**
* Performs {@link GL2ES2#glValidateProgram(int)}
* <p>
- * One shall only call this method while debugging and only if all required
+ * One shall only call this method while debugging and only if all required
* resources by the shader are set.
* </p>
* <p>
@@ -149,7 +150,7 @@ public class ShaderUtil {
}
/**
- * If supported, queries the natively supported shader binary formats using
+ * If supported, queries the natively supported shader binary formats using
* {@link GL2ES2#GL_NUM_SHADER_BINARY_FORMATS} and {@link GL2ES2#GL_SHADER_BINARY_FORMATS}
* via {@link GL2ES2#glGetIntegerv(int, int[], int)}.
*/
@@ -159,15 +160,21 @@ public class ShaderUtil {
if(null == info.shaderBinaryFormats) {
info.shaderBinaryFormats = new HashSet<Integer>();
if (gl.isGLES2Compatible()) {
- final int[] param = new int[1];
- gl.glGetIntegerv(GL2ES2.GL_NUM_SHADER_BINARY_FORMATS, param, 0);
- int numFormats = param[0];
- if(numFormats>0) {
- int[] formats = new int[numFormats];
- gl.glGetIntegerv(GL2ES2.GL_SHADER_BINARY_FORMATS, formats, 0);
- for(int i=0; i<numFormats; i++) {
- info.shaderBinaryFormats.add(new Integer(formats[i]));
+ try {
+ final int[] param = new int[1];
+ gl.glGetIntegerv(GL2ES2.GL_NUM_SHADER_BINARY_FORMATS, param, 0);
+ final int err = gl.glGetError();
+ final int numFormats = GL.GL_NO_ERROR == err ? param[0] : 0;
+ if(numFormats>0) {
+ int[] formats = new int[numFormats];
+ gl.glGetIntegerv(GL2ES2.GL_SHADER_BINARY_FORMATS, formats, 0);
+ for(int i=0; i<numFormats; i++) {
+ info.shaderBinaryFormats.add(new Integer(formats[i]));
+ }
}
+ } catch (GLException gle) {
+ System.err.println("Catched Exception on thread "+Thread.currentThread().getName());
+ gle.printStackTrace();
}
}
}
@@ -180,17 +187,28 @@ public class ShaderUtil {
final ProfileInformation info = getProfileInformation(gl);
if(null==info.shaderCompilerAvailable) {
if(gl.isGLES2()) {
- final byte[] param = new byte[1];
- gl.glGetBooleanv(GL2ES2.GL_SHADER_COMPILER, param, 0);
- boolean v = param[0]!=(byte)0x00;
- if(!v) {
- final Set<Integer> bfs = getShaderBinaryFormats(gl);
- if(bfs.size()==0) {
- // no supported binary formats, hence a compiler must be available!
- v = true;
+ boolean queryOK = false;
+ try {
+ final byte[] param = new byte[1];
+ gl.glGetBooleanv(GL2ES2.GL_SHADER_COMPILER, param, 0);
+ final int err = gl.glGetError();
+ boolean v = GL.GL_NO_ERROR == err && param[0]!=(byte)0x00;
+ if(!v) {
+ final Set<Integer> bfs = getShaderBinaryFormats(gl);
+ if(bfs.size()==0) {
+ // no supported binary formats, hence a compiler must be available!
+ v = true;
+ }
}
+ info.shaderCompilerAvailable = new Boolean(v);
+ queryOK = true;
+ } catch (GLException gle) {
+ System.err.println("Catched Exception on thread "+Thread.currentThread().getName());
+ gle.printStackTrace();
+ }
+ if(!queryOK) {
+ info.shaderCompilerAvailable = new Boolean(true);
}
- info.shaderCompilerAvailable = new Boolean(v);
} else if( gl.isGL2ES2() ) {
info.shaderCompilerAvailable = new Boolean(true);
} else {
@@ -200,6 +218,13 @@ public class ShaderUtil {
return info.shaderCompilerAvailable.booleanValue();
}
+ /** Returns true if GeometryShader is supported, i.e. whether GLContext is &ge; 3.2 or ARB_geometry_shader4 extension is available. */
+ public static boolean isGeometryShaderSupported(GL _gl) {
+ final GLContext ctx = _gl.getContext();
+ return ctx.getGLVersionNumber().compareTo(GLContext.Version320) >= 0 ||
+ ctx.isExtensionAvailable(GLExtensions.ARB_geometry_shader4);
+ }
+
public static void shaderSource(GL _gl, int shader, CharSequence[] source)
{
final GL2ES2 gl = _gl.getGL2ES2();
@@ -215,7 +240,7 @@ public class ShaderUtil {
IntBuffer lengths = Buffers.newDirectIntBuffer(count);
for(int i=0; i<count; i++) {
lengths.put(i, source[i].length());
- }
+ }
if(source instanceof String[]) {
// rare case ..
gl.glShaderSource(shader, count, (String[])source, lengths);
@@ -224,10 +249,10 @@ public class ShaderUtil {
for(int i = source.length - 1; i>=0; i--) {
final CharSequence csq = source[i];
if(csq instanceof String) {
- // if ShaderCode.create(.. mutableStringBuffer == false )
+ // if ShaderCode.create(.. mutableStringBuilder == false )
tmp[i] = (String) csq;
} else {
- // if ShaderCode.create(.. mutableStringBuffer == true )
+ // if ShaderCode.create(.. mutableStringBuilder == true )
tmp[i] = source[i].toString();
}
}
@@ -313,7 +338,7 @@ public class ShaderUtil {
}
createShader(gl, shaderType, shader);
- err = gl.glGetError();
+ err = gl.glGetError();
if(err!=GL.GL_NO_ERROR) {
throw new GLException("createAndLoadShader: CreateShader failed, GL Error: 0x"+Integer.toHexString(err));
}
@@ -328,7 +353,7 @@ public class ShaderUtil {
}
public static boolean createAndCompileShader(GL _gl, IntBuffer shader, int shaderType,
- CharSequence[][] sources,
+ CharSequence[][] sources,
PrintStream verboseOut)
{
final GL2ES2 gl = _gl.getGL2ES2();
@@ -338,32 +363,32 @@ public class ShaderUtil {
}
createShader(gl, shaderType, shader);
- err = gl.glGetError();
+ err = gl.glGetError();
if(err!=GL.GL_NO_ERROR) {
throw new GLException("createAndCompileShader: CreateShader failed, GL Error: 0x"+Integer.toHexString(err));
}
shaderSource(gl, shader, sources);
- err = gl.glGetError();
+ err = gl.glGetError();
if(err!=GL.GL_NO_ERROR) {
throw new GLException("createAndCompileShader: ShaderSource failed, GL Error: 0x"+Integer.toHexString(err));
}
compileShader(gl, shader);
- err = gl.glGetError();
+ err = gl.glGetError();
if(err!=GL.GL_NO_ERROR && null!=verboseOut) {
verboseOut.println("createAndCompileShader: CompileShader failed, GL Error: 0x"+Integer.toHexString(err));
}
return isShaderStatusValid(gl, shader, GL2ES2.GL_COMPILE_STATUS, verboseOut) && err == GL.GL_NO_ERROR;
}
-
+
private static final String implObjectKey = "com.jogamp.opengl.util.glsl.ShaderUtil" ;
-
+
private static class ProfileInformation {
Boolean shaderCompilerAvailable = null;
Set<Integer> shaderBinaryFormats = null;
- }
+ }
private static ProfileInformation getProfileInformation(GL gl) {
final GLContext context = gl.getContext();
generated by cgit v1.2.3 (git 2.39.1) at 2025-03-27 06:27:01 +0000