diff options
Diffstat (limited to 'src/jogl/classes/com/jogamp/opengl/util')
| -rw-r--r-- | src/jogl/classes/com/jogamp/opengl/util/glsl/ShaderCode.java | 56 |
1 files changed, 55 insertions, 1 deletions
diff --git a/src/jogl/classes/com/jogamp/opengl/util/glsl/ShaderCode.java b/src/jogl/classes/com/jogamp/opengl/util/glsl/ShaderCode.java index e347b4171..f6b686d7e 100644 --- a/src/jogl/classes/com/jogamp/opengl/util/glsl/ShaderCode.java +++ b/src/jogl/classes/com/jogamp/opengl/util/glsl/ShaderCode.java @@ -564,6 +564,8 @@ public class ShaderCode { * @param fromIndex start search <code>tag</code> begininig with this index * @param data the text to be inserted. Shall end with an EOL '\n' character. * @return index after the inserted <code>data</code> + * + * @throws IllegalStateException if the shader source's CharSequence is immutable, i.e. not of type <code>StringBuilder</code> */ public int insertShaderSource(int shaderIdx, String tag, int fromIndex, CharSequence data) { if(null==shaderSource) { @@ -608,6 +610,56 @@ public class ShaderCode { } /** + * Replaces <code>oldName</code> with <code>newName</code> in all shader sources. + * <p> + * In case <code>oldName</code> and <code>newName</code> are equal, no action is performed. + * </p> + * <p> + * Note: The shader source to be edit must be created using a mutable StringBuilder. + * </p> + * + * @param oldName the to be replace string + * @param newName the replacement string + * @return the number of replacements + * + * @throws IllegalStateException if the shader source's CharSequence is immutable, i.e. not of type <code>StringBuilder</code> + */ + public int replaceInShaderSource(String oldName, String newName) { + if(null==shaderSource) { + throw new IllegalStateException("no shader source"); + } + if(oldName == newName || oldName.equals(newName)) { + return 0; + } + final int oldNameLen = oldName.length(); + final int newNameLen = newName.length(); + int num = 0; + final int sourceCount = (null!=shaderSource)?shaderSource.length:0; + for(int shaderIdx = 0; shaderIdx<sourceCount; shaderIdx++) { + final CharSequence[] src = shaderSource[shaderIdx]; + for(int j=0; j<src.length; j++) { + if( !(src[j] instanceof StringBuilder) ) { + throw new IllegalStateException("shader source not a mutable StringBuilder, but CharSequence of type: "+src[j].getClass().getName()); + } + final StringBuilder sb = (StringBuilder)src[j]; + int curPos = 0; + while(curPos<sb.length()-oldNameLen+1) { + int startIdx = sb.indexOf(oldName, curPos); + if(0<=startIdx) { + int endIdx = startIdx + oldNameLen; + sb.replace(startIdx, endIdx, newName); + curPos = startIdx + newNameLen; + num++; + } else { + curPos = sb.length(); + } + } + } + } + return num; + } + + /** * Adds <code>data</code> at <code>offset</code> in shader source for shader <code>shaderIdx</code>. * <p> * Note: The shader source to be edit must be created using a mutable StringBuilder. @@ -617,6 +669,8 @@ public class ShaderCode { * @param position in shader source segments of shader <code>shaderIdx</code> * @param data the text to be inserted. Shall end with an EOL '\n' character. * @return index after the inserted <code>data</code> + * + * @throws IllegalStateException if the shader source's CharSequence is immutable, i.e. not of type <code>StringBuilder</code> */ public int insertShaderSource(int shaderIdx, int position, CharSequence data) { if(null==shaderSource) { @@ -645,7 +699,7 @@ public class ShaderCode { } return -1; } - + private static int readShaderSource(Class<?> context, URLConnection conn, StringBuilder result, int lineno) throws IOException { if(DEBUG_CODE) { if(0 == lineno) { |