X-Git-Url: http://git.nikiroo.be/?a=blobdiff_plain;f=src%2Fjexer%2Fbackend%2FECMA48Terminal.java;h=cb9724c4d5b1bfff85d4e7600b04e6d3b31a01d0;hb=a75902faaade579e3ee7fe68b0e18e49148410de;hp=518024c5d0099c07d22f5489cb7a69c1ba7a7106;hpb=c88c4ced6e9392a53030a1c680fe114931a1a928;p=fanfix.git diff --git a/src/jexer/backend/ECMA48Terminal.java b/src/jexer/backend/ECMA48Terminal.java index 518024c..cb9724c 100644 --- a/src/jexer/backend/ECMA48Terminal.java +++ b/src/jexer/backend/ECMA48Terminal.java @@ -44,16 +44,17 @@ import java.util.ArrayList; import java.util.Collections; import java.util.HashMap; import java.util.List; -import java.util.LinkedList; import jexer.TImage; import jexer.bits.Cell; import jexer.bits.CellAttributes; import jexer.bits.Color; +import jexer.event.TCommandEvent; import jexer.event.TInputEvent; import jexer.event.TKeypressEvent; import jexer.event.TMouseEvent; import jexer.event.TResizeEvent; +import static jexer.TCommand.*; import static jexer.TKeypress.*; /** @@ -80,12 +81,6 @@ public class ECMA48Terminal extends LogicalScreen MOUSE_SGR, } - /** - * Number of colors in the sixel palette. Xterm 335 defines the max as - * 1024. - */ - private static final int MAX_COLOR_REGISTERS = 1024; - // ------------------------------------------------------------------------ // Variables -------------------------------------------------------------- // ------------------------------------------------------------------------ @@ -197,6 +192,13 @@ public class ECMA48Terminal extends LogicalScreen */ private SixelCache sixelCache = null; + /** + * Number of colors in the sixel palette. Xterm 335 defines the max as + * 1024. Valid values are: 2 (black and white), 256, 512, 1024, and + * 2048. + */ + private int sixelPaletteSize = 1024; + /** * If true, then we changed System.in and need to change it back. */ @@ -231,7 +233,7 @@ public class ECMA48Terminal extends LogicalScreen /** * SixelPalette is used to manage the conversion of images between 24-bit - * RGB color and a palette of MAX_COLOR_REGISTERS colors. + * RGB color and a palette of sixelPaletteSize colors. */ private class SixelPalette { @@ -244,7 +246,7 @@ public class ECMA48Terminal extends LogicalScreen * Map of color palette index for sixel output, from the order it was * generated by makePalette() to rgbColors. */ - private int [] rgbSortedIndex = new int[MAX_COLOR_REGISTERS]; + private int [] rgbSortedIndex = new int[sixelPaletteSize]; /** * The color palette, organized by hue, saturation, and luminance. @@ -342,6 +344,16 @@ public class ECMA48Terminal extends LogicalScreen int green = (color >>> 8) & 0xFF; int blue = color & 0xFF; + if (sixelPaletteSize == 2) { + if (((red * red) + (green * green) + (blue * blue)) < 35568) { + // Black + return 0; + } + // White + return 1; + } + + rgbToHsl(red, green, blue, hsl); int hue = hsl[0]; int sat = hsl[1]; @@ -414,7 +426,7 @@ public class ECMA48Terminal extends LogicalScreen ((255 - blue) * (255 - blue))) < diff) { // White is a closer match. - idx = MAX_COLOR_REGISTERS - 1; + idx = sixelPaletteSize - 1; } assert (idx != -1); return idx; @@ -437,7 +449,7 @@ public class ECMA48Terminal extends LogicalScreen } /** - * Dither an image to a MAX_COLOR_REGISTERS palette. The dithered + * Dither an image to a sixelPaletteSize palette. The dithered * image cells will contain indexes into the palette. * * @param image the image to dither @@ -460,7 +472,7 @@ public class ECMA48Terminal extends LogicalScreen imageY) & 0xFFFFFF; int colorIdx = matchColor(oldPixel); assert (colorIdx >= 0); - assert (colorIdx < MAX_COLOR_REGISTERS); + assert (colorIdx < sixelPaletteSize); int newPixel = rgbColors.get(colorIdx); ditheredImage.setRGB(imageX, imageY, colorIdx); @@ -658,10 +670,18 @@ public class ECMA48Terminal extends LogicalScreen private void makePalette() { // Generate the sixel palette. Because we have no idea at this // layer which image(s) will be shown, we have to use a common - // palette with MAX_COLOR_REGISTERS colors for everything, and + // palette with sixelPaletteSize colors for everything, and // map the BufferedImage colors to their nearest neighbor in RGB // space. + if (sixelPaletteSize == 2) { + rgbColors.add(0); + rgbColors.add(0xFFFFFF); + rgbSortedIndex[0] = 0; + rgbSortedIndex[1] = 1; + return; + } + // We build a palette using the Hue-Saturation-Luminence model, // with 5+ bits for Hue, 2+ bits for Saturation, and 1+ bit for // Luminance. We convert these colors to 24-bit RGB, sort them @@ -675,13 +695,13 @@ public class ECMA48Terminal extends LogicalScreen satBits = 2; lumBits = 1; - assert (MAX_COLOR_REGISTERS >= 256); - assert ((MAX_COLOR_REGISTERS == 256) - || (MAX_COLOR_REGISTERS == 512) - || (MAX_COLOR_REGISTERS == 1024) - || (MAX_COLOR_REGISTERS == 2048)); + assert (sixelPaletteSize >= 256); + assert ((sixelPaletteSize == 256) + || (sixelPaletteSize == 512) + || (sixelPaletteSize == 1024) + || (sixelPaletteSize == 2048)); - switch (MAX_COLOR_REGISTERS) { + switch (sixelPaletteSize) { case 512: hueBits = 5; satBits = 2; @@ -767,7 +787,7 @@ public class ECMA48Terminal extends LogicalScreen } // System.err.printf("\n\n"); - assert (rgbColors.size() == MAX_COLOR_REGISTERS); + assert (rgbColors.size() == sixelPaletteSize); /* * We need to sort rgbColors, so that toSixel() can know where @@ -779,19 +799,19 @@ public class ECMA48Terminal extends LogicalScreen Collections.sort(rgbColors); HashMap rgbColorIndices = null; rgbColorIndices = new HashMap(); - for (int i = 0; i < MAX_COLOR_REGISTERS; i++) { + for (int i = 0; i < sixelPaletteSize; i++) { rgbColorIndices.put(rgbColors.get(i), i); } - for (int i = 0; i < MAX_COLOR_REGISTERS; i++) { + for (int i = 0; i < sixelPaletteSize; i++) { int rawColor = rawRgbList.get(i); rgbSortedIndex[i] = rgbColorIndices.get(rawColor); } if (DEBUG) { - for (int i = 0; i < MAX_COLOR_REGISTERS; i++) { + for (int i = 0; i < sixelPaletteSize; i++) { assert (rawRgbList != null); int idx = rgbSortedIndex[i]; int rgbColor = rgbColors.get(idx); - if ((idx != 0) && (idx != MAX_COLOR_REGISTERS - 1)) { + if ((idx != 0) && (idx != sixelPaletteSize - 1)) { /* System.err.printf("%d %06x --> %d %06x\n", i, rawRgbList.get(i), idx, rgbColors.get(idx)); @@ -804,7 +824,7 @@ public class ECMA48Terminal extends LogicalScreen // Set the dimmest color as true black, and the brightest as true // white. rgbColors.set(0, 0); - rgbColors.set(MAX_COLOR_REGISTERS - 1, 0xFFFFFF); + rgbColors.set(sixelPaletteSize - 1, 0xFFFFFF); /* System.err.printf("\n"); @@ -829,7 +849,7 @@ public class ECMA48Terminal extends LogicalScreen public String emitPalette(final StringBuilder sb, final boolean [] used) { - for (int i = 0; i < MAX_COLOR_REGISTERS; i++) { + for (int i = 0; i < sixelPaletteSize; i++) { if (((used != null) && (used[i] == true)) || (used == null)) { int rgbColor = rgbColors.get(i); sb.append(String.format("#%d;2;%d;%d;%d", i, @@ -981,7 +1001,8 @@ public class ECMA48Terminal extends LogicalScreen // ------------------------------------------------------------------------ /** - * Constructor sets up state for getEvent(). + * Constructor sets up state for getEvent(). If either windowWidth or + * windowHeight are less than 1, the terminal is not resized. * * @param listener the object this backend needs to wake up when new * input comes in @@ -1005,10 +1026,12 @@ public class ECMA48Terminal extends LogicalScreen // Send dtterm/xterm sequences, which will probably not work because // allowWindowOps is defaulted to false. - String resizeString = String.format("\033[8;%d;%dt", windowHeight, - windowWidth); - this.output.write(resizeString); - this.output.flush(); + if ((windowWidth > 0) && (windowHeight > 0)) { + String resizeString = String.format("\033[8;%d;%dt", windowHeight, + windowWidth); + this.output.write(resizeString); + this.output.flush(); + } } /** @@ -1087,7 +1110,7 @@ public class ECMA48Terminal extends LogicalScreen reloadOptions(); // Spin up the input reader - eventQueue = new LinkedList(); + eventQueue = new ArrayList(); readerThread = new Thread(this); readerThread.start(); @@ -1173,7 +1196,7 @@ public class ECMA48Terminal extends LogicalScreen reloadOptions(); // Spin up the input reader - eventQueue = new LinkedList(); + eventQueue = new ArrayList(); readerThread = new Thread(this); readerThread.start(); @@ -1356,6 +1379,27 @@ public class ECMA48Terminal extends LogicalScreen } else { sixel = false; } + + // Palette size + int paletteSize = 1024; + try { + paletteSize = Integer.parseInt(System.getProperty( + "jexer.ECMA48.sixelPaletteSize", "1024")); + switch (paletteSize) { + case 2: + case 256: + case 512: + case 1024: + case 2048: + sixelPaletteSize = paletteSize; + break; + default: + // Ignore value + break; + } + } catch (NumberFormatException e) { + // SQUASH + } } // ------------------------------------------------------------------------ @@ -1370,7 +1414,7 @@ public class ECMA48Terminal extends LogicalScreen // available() will often return > 1, so we need to read in chunks to // stay caught up. char [] readBuffer = new char[128]; - List events = new LinkedList(); + List events = new ArrayList(); while (!done && !stopReaderThread) { try { @@ -1435,6 +1479,11 @@ public class ECMA48Terminal extends LogicalScreen events.clear(); } + if (output.checkError()) { + // This is EOF. + done = true; + } + // Wait 20 millis for more data Thread.sleep(20); } @@ -1446,6 +1495,17 @@ public class ECMA48Terminal extends LogicalScreen done = true; } } // while ((done == false) && (stopReaderThread == false)) + + // Pass an event up to TApplication to tell it this Backend is done. + synchronized (eventQueue) { + eventQueue.add(new TCommandEvent(cmBackendDisconnect)); + } + if (listener != null) { + synchronized (listener) { + listener.notifyAll(); + } + } + // System.err.println("*** run() exiting..."); System.err.flush(); } @@ -2708,6 +2768,46 @@ public class ECMA48Terminal extends LogicalScreen // Sixel output support --------------------------------------------------- // ------------------------------------------------------------------------ + /** + * Get the number of colors in the sixel palette. + * + * @return the palette size + */ + public int getSixelPaletteSize() { + return sixelPaletteSize; + } + + /** + * Set the number of colors in the sixel palette. + * + * @param paletteSize the new palette size + */ + public void setSixelPaletteSize(final int paletteSize) { + if (paletteSize == sixelPaletteSize) { + return; + } + + switch (paletteSize) { + case 2: + case 256: + case 512: + case 1024: + case 2048: + break; + default: + throw new IllegalArgumentException("Unsupported sixel palette " + + " size: " + paletteSize); + } + + // Don't step on the screen refresh thread. + synchronized (this) { + sixelPaletteSize = paletteSize; + palette = null; + sixelCache = null; + clearPhysical(); + } + } + /** * Start a sixel string for display one row's worth of bitmap data. * @@ -2814,14 +2914,32 @@ public class ECMA48Terminal extends LogicalScreen int [] rgbArray; for (int i = 0; i < cells.size() - 1; i++) { - if (cells.get(i).isInvertedImage()) { + int tileWidth = Math.min(cells.get(i).getImage().getWidth(), + imageWidth); + int tileHeight = Math.min(cells.get(i).getImage().getHeight(), + imageHeight); + if (false && cells.get(i).isInvertedImage()) { + // I used to put an all-white cell over the cursor, don't do + // that anymore. rgbArray = new int[imageWidth * imageHeight]; for (int j = 0; j < rgbArray.length; j++) { rgbArray[j] = 0xFFFFFF; } } else { - rgbArray = cells.get(i).getImage().getRGB(0, 0, - imageWidth, imageHeight, null, 0, imageWidth); + try { + rgbArray = cells.get(i).getImage().getRGB(0, 0, + tileWidth, tileHeight, null, 0, tileWidth); + } catch (Exception e) { + throw new RuntimeException("image " + imageWidth + "x" + + imageHeight + + "tile " + tileWidth + "x" + + tileHeight + + " cells.get(i).getImage() " + + cells.get(i).getImage() + + " i " + i + + " fullWidth " + fullWidth + + " fullHeight " + fullHeight, e); + } } /* @@ -2832,9 +2950,9 @@ public class ECMA48Terminal extends LogicalScreen fullWidth, fullHeight, cells.size(), getTextWidth()); */ - image.setRGB(i * imageWidth, 0, imageWidth, imageHeight, - rgbArray, 0, imageWidth); - if (imageHeight < fullHeight) { + image.setRGB(i * imageWidth, 0, tileWidth, tileHeight, + rgbArray, 0, tileWidth); + if (tileHeight < fullHeight) { int backgroundColor = cells.get(i).getBackground().getRGB(); for (int imageX = 0; imageX < image.getWidth(); imageX++) { for (int imageY = imageHeight; imageY < fullHeight; @@ -2846,14 +2964,22 @@ public class ECMA48Terminal extends LogicalScreen } } totalWidth -= ((cells.size() - 1) * imageWidth); - if (cells.get(cells.size() - 1).isInvertedImage()) { + if (false && cells.get(cells.size() - 1).isInvertedImage()) { + // I used to put an all-white cell over the cursor, don't do that + // anymore. rgbArray = new int[totalWidth * imageHeight]; for (int j = 0; j < rgbArray.length; j++) { rgbArray[j] = 0xFFFFFF; } } else { - rgbArray = cells.get(cells.size() - 1).getImage().getRGB(0, 0, - totalWidth, imageHeight, null, 0, totalWidth); + try { + rgbArray = cells.get(cells.size() - 1).getImage().getRGB(0, 0, + totalWidth, imageHeight, null, 0, totalWidth); + } catch (Exception e) { + throw new RuntimeException("image " + imageWidth + "x" + + imageHeight + " cells.get(cells.size() - 1).getImage() " + + cells.get(cells.size() - 1).getImage(), e); + } } image.setRGB((cells.size() - 1) * imageWidth, 0, totalWidth, imageHeight, rgbArray, 0, totalWidth); @@ -2878,7 +3004,7 @@ public class ECMA48Terminal extends LogicalScreen // Emit the palette, but only for the colors actually used by these // cells. - boolean [] usedColors = new boolean[MAX_COLOR_REGISTERS]; + boolean [] usedColors = new boolean[sixelPaletteSize]; for (int imageX = 0; imageX < image.getWidth(); imageX++) { for (int imageY = 0; imageY < image.getHeight(); imageY++) { usedColors[image.getRGB(imageX, imageY)] = true; @@ -2898,13 +3024,13 @@ public class ECMA48Terminal extends LogicalScreen int colorIdx = image.getRGB(imageX, imageY + currentRow); assert (colorIdx >= 0); - assert (colorIdx < MAX_COLOR_REGISTERS); + assert (colorIdx < sixelPaletteSize); sixels[imageX][imageY] = colorIdx; } } - for (int i = 0; i < MAX_COLOR_REGISTERS; i++) { + for (int i = 0; i < sixelPaletteSize; i++) { boolean isUsed = false; for (int imageX = 0; imageX < image.getWidth(); imageX++) { for (int j = 0; j < 6; j++) { @@ -2921,6 +3047,8 @@ public class ECMA48Terminal extends LogicalScreen // colored pixels, and select the color. sb.append(String.format("$#%d", i)); + int oldData = -1; + int oldDataCount = 0; for (int imageX = 0; imageX < image.getWidth(); imageX++) { // Add up all the pixels that match this color. @@ -2953,11 +3081,33 @@ public class ECMA48Terminal extends LogicalScreen } } assert (data >= 0); - assert (data < 127); + assert (data < 64); data += 63; - sb.append((char) data); + + if (data == oldData) { + oldDataCount++; + } else { + if (oldDataCount == 1) { + sb.append((char) oldData); + } else if (oldDataCount > 1) { + sb.append(String.format("!%d", oldDataCount)); + sb.append((char) oldData); + } + oldDataCount = 1; + oldData = data; + } + } // for (int imageX = 0; imageX < image.getWidth(); imageX++) - } // for (int i = 0; i < MAX_COLOR_REGISTERS; i++) + + // Emit the last sequence. + if (oldDataCount == 1) { + sb.append((char) oldData); + } else if (oldDataCount > 1) { + sb.append(String.format("!%d", oldDataCount)); + sb.append((char) oldData); + } + + } // for (int i = 0; i < sixelPaletteSize; i++) // Advance to the next scan line. sb.append("-"); @@ -2975,6 +3125,15 @@ public class ECMA48Terminal extends LogicalScreen return (startSixel(x, y) + sb.toString() + endSixel()); } + /** + * Get the sixel support flag. + * + * @return true if this terminal is emitting sixel + */ + public boolean hasSixel() { + return sixel; + } + // ------------------------------------------------------------------------ // End sixel output support ----------------------------------------------- // ------------------------------------------------------------------------