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-rw-r--r--src/jogl/classes/jogamp/opengl/util/jpeg/JPEGDecoder.java72
1 files changed, 53 insertions, 19 deletions
diff --git a/src/jogl/classes/jogamp/opengl/util/jpeg/JPEGDecoder.java b/src/jogl/classes/jogamp/opengl/util/jpeg/JPEGDecoder.java
index 251291a14..833771dd1 100644
--- a/src/jogl/classes/jogamp/opengl/util/jpeg/JPEGDecoder.java
+++ b/src/jogl/classes/jogamp/opengl/util/jpeg/JPEGDecoder.java
@@ -301,13 +301,15 @@ public class JPEGDecoder {
private final ArrayHashSet<Integer> compIDs;
private final ComponentIn[] comps;
private final int compCount;
+ /** quantization tables */
+ final int[][] qtt;
int maxCompID;
int maxH;
int maxV;
int mcusPerLine;
int mcusPerColumn;
- Frame(boolean progressive, int precision, int scanLines, int samplesPerLine, int componentsCount) {
+ Frame(boolean progressive, int precision, int scanLines, int samplesPerLine, int componentsCount, int[][] qtt) {
this.progressive = progressive;
this.precision = precision;
this.scanLines = scanLines;
@@ -315,6 +317,7 @@ public class JPEGDecoder {
compIDs = new ArrayHashSet<Integer>(componentsCount);
comps = new ComponentIn[componentsCount];
this.compCount = componentsCount;
+ this.qtt = qtt;
}
private final void checkBounds(int idx) {
@@ -322,6 +325,17 @@ public class JPEGDecoder {
throw new CodecException("Idx out of bounds "+idx+", "+this);
}
}
+ public final void validateComponents() {
+ for(int i=0; i<compCount; i++) {
+ final ComponentIn c = comps[i];
+ if( null == c ) {
+ throw new CodecException("Component["+i+"] null");
+ }
+ if( null == this.qtt[c.qttIdx] ) {
+ throw new CodecException("Component["+i+"].qttIdx -> null QTT");
+ }
+ }
+ }
public final int getCompCount() { return compCount; }
public final int getMaxCompID() { return maxCompID; }
@@ -357,7 +371,8 @@ public class JPEGDecoder {
/** The JPEG encoded components */
class ComponentIn {
final int h, v;
- final int[] quantizationTable;
+ /** index to frame.qtt[] */
+ final int qttIdx;
int blocksPerColumn;
int blocksPerColumnForMcu;
int blocksPerLine;
@@ -368,10 +383,10 @@ public class JPEGDecoder {
BinObj huffmanTableAC;
BinObj huffmanTableDC;
- ComponentIn(int h, int v, int[] quantizationTable) {
+ ComponentIn(int h, int v, int qttIdx) {
this.h = h;
this.v = v;
- this.quantizationTable = quantizationTable;
+ this.qttIdx = qttIdx;
}
public final void allocateBlocks(int blocksPerColumn, int blocksPerColumnForMcu, int blocksPerLine, int blocksPerLineForMcu) {
@@ -389,7 +404,7 @@ public class JPEGDecoder {
}
public final String toString() {
- return "CompIn[h "+h+", v "+v+", blocks["+blocksPerColumn+", mcu "+blocksPerColumnForMcu+"]["+blocksPerLine+", mcu "+blocksPerLineForMcu+"][64]]";
+ return "CompIn[h "+h+", v "+v+", qttIdx "+qttIdx+", blocks["+blocksPerColumn+", mcu "+blocksPerColumnForMcu+"]["+blocksPerLine+", mcu "+blocksPerLineForMcu+"][64]]";
}
}
@@ -526,12 +541,14 @@ public class JPEGDecoder {
}
public synchronized JPEGDecoder parse(final InputStream inputStream) throws IOException {
clear(inputStream);
- Frame frame = null;
- int resetInterval = 0;
- int[][] quantizationTables = new int[0x0F][]; // 4 bits
- ArrayList<Frame> frames = new ArrayList<Frame>();
+
+ final int[][] quantizationTables = new int[0x0F][]; // 4 bits
final BinObj[] huffmanTablesAC = new BinObj[0x0F]; // Huffman table spec - 4 bits
final BinObj[] huffmanTablesDC = new BinObj[0x0F]; // Huffman table spec - 4 bits
+ // final ArrayList<Frame> frames = new ArrayList<Frame>(); // JAU: max 1-frame
+
+ Frame frame = null;
+ int resetInterval = 0;
int fileMarker = readUint16();
if ( fileMarker != M_SOI ) {
throw new CodecException("SOI not found, but has marker "+toHexString(fileMarker));
@@ -579,6 +596,7 @@ public class JPEGDecoder {
while( count < quantizationTablesLength ) {
final int quantizationTableSpec = readUint8(); count++;
final int precisionID = quantizationTableSpec >> 4;
+ final int tableIdx = quantizationTableSpec & 0x0F;
final int[] tableData = new int[64];
if ( precisionID == 0 ) { // 8 bit values
for (int j = 0; j < 64; j++) {
@@ -591,12 +609,15 @@ public class JPEGDecoder {
tableData[z] = readUint16(); count+=2;
}
} else {
- throw new CodecException("DQT: invalid table precision "+precisionID+", quantizationTableSpec "+quantizationTableSpec);
+ throw new CodecException("DQT: invalid table precision "+precisionID+", quantizationTableSpec "+quantizationTableSpec+", idx "+tableIdx);
}
- quantizationTables[quantizationTableSpec & 0x0F] = tableData;
+ quantizationTables[tableIdx] = tableData;
+ if( DEBUG ) {
+ System.err.println("JPEG.parse.QTT["+tableIdx+"]: spec "+quantizationTableSpec+", precision "+precisionID+", data "+count+"/"+quantizationTablesLength);
+ }
}
if(count!=quantizationTablesLength){
- throw new CodecException("ERROR: QTT format error [count!=Length]");
+ throw new CodecException("ERROR: QTT format error [count!=Length]: "+count+"/"+quantizationTablesLength);
}
fileMarker = 0; // consumed and get-next
}
@@ -604,6 +625,9 @@ public class JPEGDecoder {
case M_SOF0:
case M_SOF2: {
+ if( null != frame ) { // JAU: max 1-frame
+ throw new CodecException("only single frame JPEGs supported");
+ }
int count = 0;
final int sofLen = readUint16(); count+=2; // header length;
final int componentsCount;
@@ -613,7 +637,7 @@ public class JPEGDecoder {
final int scanLines = readUint16(); count+=2;
final int samplesPerLine = readUint16(); count+=2;
componentsCount = readUint8(); count++;
- frame = new Frame(progressive, precision, scanLines, samplesPerLine, componentsCount);
+ frame = new Frame(progressive, precision, scanLines, samplesPerLine, componentsCount, quantizationTables);
width = frame.samplesPerLine;
height = frame.scanLines;
}
@@ -622,14 +646,15 @@ public class JPEGDecoder {
final int temp = readUint8(); count++;
final int h = temp >> 4;
final int v = temp & 0x0F;
- final int qId = readUint8(); count++;
- frame.putOrdered(componentId, new ComponentIn(h, v, quantizationTables[qId]));
+ final int qttIdx = readUint8(); count++;
+ final ComponentIn compIn = new ComponentIn(h, v, qttIdx);
+ frame.putOrdered(componentId, compIn);
}
if(count!=sofLen){
throw new CodecException("ERROR: SOF format error [count!=Length]");
}
prepareComponents(frame);
- frames.add(frame);
+ // frames.add(frame); // JAU: max 1-frame
if(DEBUG) { System.err.println("JPG.parse.SOF[02]: Got frame "+frame); }
fileMarker = 0; // consumed and get-next
}
@@ -711,14 +736,21 @@ public class JPEGDecoder {
}
}
if(DEBUG) { System.err.println("JPG.parse.2: End of parsing input "+this); }
+ /** // JAU: max 1-frame
if ( frames.size() != 1 ) {
- throw new CodecException("only single frame JPEGs supported");
+ throw new CodecException("only single frame JPEGs supported "+this);
+ } */
+ if( null == frame ) {
+ throw new CodecException("no single frame found in stream "+this);
}
+ frame.validateComponents();
final int compCount = frame.getCompCount();
this.components = new ComponentOut[compCount];
for (int i = 0; i < compCount; i++) {
final ComponentIn component = frame.getCompByIndex(i);
+ // System.err.println("JPG.parse.buildComponentData["+i+"]: "+component); // JAU
+ // System.err.println("JPG.parse.buildComponentData["+i+"]: "+frame); // JAU
this.components[i] = new ComponentOut( output.buildComponentData(frame, component),
(float)component.h / (float)frame.maxH,
(float)component.v / (float)frame.maxV );
@@ -834,12 +866,14 @@ public class JPEGDecoder {
final byte[] r = new byte[64];
for (int blockRow = 0; blockRow < blocksPerColumn; blockRow++) {
- int scanLine = blockRow << 3;
+ final int scanLine = blockRow << 3;
+ // System.err.println("JPG.buildComponentData: row "+blockRow+"/"+blocksPerColumn+" -> scanLine "+scanLine); // JAU
for (int i = 0; i < 8; i++) {
lines.add(new byte[samplesPerLine]);
}
for (int blockCol = 0; blockCol < blocksPerLine; blockCol++) {
- quantizeAndInverse(component.getBlock(blockRow, blockCol), r, R, component.quantizationTable);
+ // System.err.println("JPG.buildComponentData: col "+blockCol+"/"+blocksPerLine+", comp.qttIdx "+component.qttIdx+", qtt "+frame.qtt[component.qttIdx]); // JAU
+ quantizeAndInverse(component.getBlock(blockRow, blockCol), r, R, frame.qtt[component.qttIdx]);
final int sample = blockCol << 3;
int offset = 0;
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-12 17:45:12 +0000