diff options
Diffstat (limited to 'src/classes/com/sun/opengl/util')
| -rwxr-xr-x | src/classes/com/sun/opengl/util/j2d/TextRenderer.java | 170 |
1 files changed, 117 insertions, 53 deletions
diff --git a/src/classes/com/sun/opengl/util/j2d/TextRenderer.java b/src/classes/com/sun/opengl/util/j2d/TextRenderer.java index 312c99c13..78b193fb7 100755 --- a/src/classes/com/sun/opengl/util/j2d/TextRenderer.java +++ b/src/classes/com/sun/opengl/util/j2d/TextRenderer.java @@ -816,17 +816,21 @@ public class TextRenderer { } } - //---------------------------------------------------------------------- - // Glyph-by-glyph rendering support - // private void internal_draw3D(CharSequence str, float x, float y, float z, float scaleFactor) { - GlyphsList glyphs = mGlyphProducer.getGlyphs(str); - - if (glyphs != null) { - drawGlyphs(glyphs, x, y, z, scaleFactor); - } else { - this.draw3D_ROBUST(str, x, y, z, scaleFactor); + int drawingState = DrawingState.fast; + + while (drawingState != DrawingState.finished) { + GlyphsList glyphs = mGlyphProducer.getGlyphs(str); + + if (drawingState == DrawingState.fast) { + x += drawGlyphs(glyphs, x, y, z, scaleFactor); + str = glyphs.remaining; + drawingState = glyphs.nextState; + } else if (drawingState == DrawingState.robust) { + this.draw3D_ROBUST(str, x, y, z, scaleFactor); + drawingState = DrawingState.finished; + } } } @@ -836,19 +840,19 @@ public class TextRenderer { } } - private void drawGlyphs(GlyphsList inGlyphs, float inX, float inY, float z, - float scaleFactor) { + private float drawGlyphs(GlyphsList inGlyphs, float inX, float inY, + float z, float scaleFactor) { + float xOffset = 0; + try { if (mPipelinedQuadRenderer == null) { mPipelinedQuadRenderer = new Pipelined_QuadRenderer(); } TextureRenderer renderer = getBackingStore(); - float xOffset = 0; for (int i = 0; i < inGlyphs.length; i++) { Rect rect = inGlyphs.textureSourceRect[i]; - TextData data = (TextData) rect.getUserData(); data.markUsed(); @@ -860,11 +864,12 @@ public class TextRenderer { int width = rect.w(); int height = rect.h(); - float tx1 = (float) texturex / (float) kSize; - float ty1 = 1.0f - ((float) texturey / (float) kSize); - float tx2 = (float) (texturex + width) / (float) kSize; + float tx1 = (float) texturex / (float) renderer.getWidth(); + float ty1 = 1.0f - + ((float) texturey / (float) renderer.getHeight()); + float tx2 = (float) (texturex + width) / (float) renderer.getWidth(); float ty2 = 1.0f - - ((float) (texturey + height) / (float) kSize); + ((float) (texturey + height) / (float) renderer.getHeight()); mPipelinedQuadRenderer.glTexCoord2f(tx1, ty1); mPipelinedQuadRenderer.glVertex3f(x, y, z); @@ -883,15 +888,16 @@ public class TextRenderer { } catch (Exception e) { e.printStackTrace(); } - } - private void drawGlyphsSIMPLE(GlyphsList inGlyphs, float x, float y, - float z, float scaleFactor) { // unused, for reference, debugging + return xOffset; + } + private float drawGlyphsSIMPLE(GlyphsList inGlyphs, float x, float y, + float z, float scaleFactor) // unused, for reference, debugging + { TextureRenderer renderer = getBackingStore(); - int xOffset = 0; - GL gl = GLU.getCurrentGL(); + int xOffset = 0; for (int i = 0; i < inGlyphs.length; i++) { Rect rect = inGlyphs.textureSourceRect[i]; @@ -910,6 +916,8 @@ public class TextRenderer { 0.5f); // note the advances.. I had to use this to get proper kerning. } } + + return xOffset; } private void draw3D_ROBUST(CharSequence str, float x, float y, float z, @@ -929,8 +937,7 @@ public class TextRenderer { if (rect == null) { // Rasterize this string and place it on the backing store Graphics2D g = getGraphics2D(); - Rectangle2D bbox = normalize(renderDelegate.getBounds( - curStr, font, getFontRenderContext())); + Rectangle2D bbox = normalize(renderDelegate.getBounds(curStr, font, getFontRenderContext())); Point origin = new Point((int) -bbox.getMinX(), (int) -bbox.getMinY()); rect = new Rect(0, 0, (int) bbox.getWidth(), @@ -1254,6 +1261,7 @@ public class TextRenderer { // Heavy hammer -- might consider doing something different packer.clear(); stringLocations.clear(); + mGlyphProducer.clearAllCacheEntries(); if (DEBUG) { System.err.println( @@ -1264,6 +1272,9 @@ public class TextRenderer { public void beginMovement(Object oldBackingStore, Object newBackingStore) { // Exit the begin / end pair if necessary if (inBeginEndPair) { + // Draw any outstanding glyphs + flush(); + GL gl = GLU.getCurrentGL(); // Pop client attrib bits used by the pipelined quad renderer @@ -1373,6 +1384,15 @@ public class TextRenderer { } } + //---------------------------------------------------------------------- + // Glyph-by-glyph rendering support + // + private static class DrawingState { + public static final int fast = 1; + public static final int robust = 2; + public static final int finished = 3; + } + class GlyphsUploadList { int numberOfNewGlyphs; GlyphVector[] glyphVector; @@ -1437,6 +1457,8 @@ public class TextRenderer { outList.textureSourceRect[this.renderIndex[i]] = mapper.glyphRectForTextureMapping[this.newGlyphs[i]]; } } + + this.numberOfNewGlyphs = 0; } public void allocateSpace(int inLength) { @@ -1453,7 +1475,10 @@ public class TextRenderer { } static class GlyphsList { + int /* DrawingState */ nextState; + CharSequence remaining; float[] advances; + float totalAdvance; Rect[] textureSourceRect; int length; @@ -1489,10 +1514,7 @@ public class TextRenderer { glyphRectForTextureMapping = new Rect[fontLengthInGlyphs]; unicodes2Glyphs = new int[512]; singleUnicode = new char[1]; - - for (int i = 0; i < unicodes2Glyphs.length; i++) { - unicodes2Glyphs[i] = undefined; - } + clearAllCacheEntries(); } } @@ -1500,6 +1522,12 @@ public class TextRenderer { unicodes2Glyphs[unicodeID] = undefined; } + public void clearAllCacheEntries() { + for (int i = 0; i < unicodes2Glyphs.length; i++) { + unicodes2Glyphs[i] = undefined; + } + } + public void allocateSpace(int length) { length = Math.max(length, 100); @@ -1514,27 +1542,40 @@ public class TextRenderer { float getGlyphPixelWidth(char unicodeID) { int glyphID = undefined; - if (unicodeID < unicodes2Glyphs.length) { // <--- could support the rare high unicode better later - glyphID = unicodes2Glyphs[unicodeID]; // Check to see if we have already encountered this unicode - } - - if (glyphID != undefined) { // if we haven't, we must get some its attributes, and prep for upload + if (unicodeID < unicodes2Glyphs.length) // <--- could support the rare high unicode better later + { + glyphID = unicodes2Glyphs[unicodeID]; // Check to see if we have already encountered this unicode + } - return advances[glyphID]; - } else { - tempChars[0] = unicodeID; + if (glyphID != undefined) // if we haven't, we must get some its attributes, and prep for upload + { + return advances[glyphID]; + } else { + tempChars[0] = unicodeID; - GlyphVector fullRunGlyphVector = font.createGlyphVector(fontRenderContext, - tempChars); + GlyphVector fullRunGlyphVector = font.createGlyphVector(fontRenderContext, + tempChars); - return fullRunGlyphVector.getGlyphMetrics(0).getAdvance(); - } + return fullRunGlyphVector.getGlyphMetrics(0).getAdvance(); + } // return -1; } + GlyphsList puntToRobust(CharSequence inString) { + glyphsOutput.nextState = DrawingState.robust; + glyphsOutput.remaining = inString; + + return glyphsOutput; + } + GlyphsList getGlyphs(CharSequence inString) { - glyphsToUpload.numberOfNewGlyphs = 0; + float fontSize = font.getSize(); + + if (fontSize > 128) { + glyphsOutput.nextState = DrawingState.robust; + glyphsOutput.remaining = inString; + } int length = inString.length(); allocateSpace(length); @@ -1547,43 +1588,66 @@ public class TextRenderer { int lengthInGlyphs = fullRunGlyphVector.getNumGlyphs(); if (complex) { - return null; + return puntToRobust(inString); } + TextureRenderer renderer = getBackingStore(); + + float totalAdvanceUploaded = 0; + float cacheSize = renderer.getWidth() * renderer.getHeight(); + for (int i = 0; i < lengthInGlyphs; i++) { + float advance; + char unicodeID = inString.charAt(i); if (unicodeID >= unicodes2Glyphs.length) { // <-- -could support these better - - return null; + return puntToRobust(inString); } int glyphID = unicodes2Glyphs[unicodeID]; // Check to see if we have already encountered this unicode if (glyphID == undefined) { // if we haven't, we must get some its attributes, and prep for upload - GlyphMetrics metrics = fullRunGlyphVector.getGlyphMetrics(i); singleUnicode[0] = unicodeID; GlyphVector gv = font.createGlyphVector(fontRenderContext, singleUnicode); // need this to get single bitmaps glyphID = gv.getGlyphCode(0); + advance = metrics.getAdvance(); + advances[glyphID] = advance; - glyphsToUpload.prepGlyphForUpload(unicodeID, - gv.getGlyphCode(0), - gv.getPixelBounds(fontRenderContext, 0, 0), i, gv); + glyphsToUpload.prepGlyphForUpload(unicodeID, glyphID, + gv.getVisualBounds(), i, gv); - advances[glyphID] = metrics.getAdvance(); + totalAdvanceUploaded += advance; } else { - glyphsOutput.textureSourceRect[i] = glyphRectForTextureMapping[glyphID]; + Rect r = glyphRectForTextureMapping[glyphID]; + glyphsOutput.textureSourceRect[i] = r; + + TextData data = (TextData) r.getUserData(); + data.markUsed(); + + advance = advances[glyphID]; } - glyphsOutput.advances[i] = advances[glyphID]; - } + glyphsOutput.advances[i] = advance; + glyphsOutput.totalAdvance += advance; - glyphsOutput.length = length; + if ((totalAdvanceUploaded * fontSize) > (0.25f * cacheSize)) // note -- if the incoming string is bigger than 1/4 the total font cache, start segmenting glyph stream into bite sized pieces + { + glyphsToUpload.uploadAnyNewGlyphs(glyphsOutput, this); + glyphsOutput.length = i + 1; + glyphsOutput.remaining = inString.subSequence(i + 1, length); + glyphsOutput.nextState = DrawingState.fast; + + return glyphsOutput; + } + } + glyphsOutput.length = lengthInGlyphs; glyphsToUpload.uploadAnyNewGlyphs(glyphsOutput, this); + glyphsOutput.nextState = DrawingState.finished; return glyphsOutput; } |