Changeset 213

Timestamp:

12/28/06 03:10:10 (2 years ago)

Author:

astrange

Message:

Outside-stroke and shadowed subtitles

Files:

• trunk/TextSubCodec.c (modified) (5 diffs)

trunk/TextSubCodec.c

@@ -14 +14 @@
-// basically random numbers i picked, font size is a factor of the diagonal of the movie window, border is a factor of that
-#define FontSizeRatio .04
-
+
+
+
-
-// Constants
@@ -29 +31 @@
-        CGColorSpaceRef         colorSpace;
-        
-
+, shadowStyle
-        ATSUTextLayout                  textLayout;
-        //Ptr                     textBuffer;
@@ -278 +280 @@
-        TextSubDecompressRecord *myDrp = (TextSubDecompressRecord *)drp->userDecompressRecord;
-        float diagonalLength = sqrtf(myDrp->width*myDrp->width+myDrp->height*myDrp->height);
-
+, ShadowDistFix = FloatToFixed(ShadowDistance)
-//      char *dataPtr = (char *)drp->codecData;
-//      ICMDataProcRecordPtr dataProc = drp->dataProcRecord.dataProc ? &drp->dataProcRecord : NULL;
@@ -289 +291 @@
-                ATSUAttributeTag tags[] = {kATSUSizeTag, kATSURGBAlphaColorTag, kATSUStyleRenderingOptionsTag, kATSUFontTag};
-                ByteCount                sizes[] = {sizeof(Fixed), sizeof(ATSURGBAlphaColor), sizeof(ATSStyleRenderingOptions), sizeof(ATSUFontID)};
-
+, black = {0,0,0,1}
-                Boolean                  trueval = TRUE; ATSUFontID fid; ATSStyleRenderingOptions rend = kATSStyleApplyAntiAliasing;
-&white,
+ &white, 
-                ATSUCreateStyle(&glob->textStyle);
-                ATSUFindFontFromName(SubFontName,strlen(SubFontName),kFontFullName,kFontNoPlatform,kFontNoScript,kFontNoLanguage,&fid);
-                ATSUSetAttributes(glob->textStyle,5, tags, sizes, vals);
+        
+                ATSUAttributeTag btags[] = {kATSURGBAlphaColorTag};
+                ByteCount                bsizes[] = {sizeof(ATSURGBAlphaColor)};
+                ATSUAttributeValuePtr bvals[] = {&black};
+                
+                ATSUCreateAndCopyStyle(glob->textStyle,&glob->shadowStyle);
+                ATSUSetAttributes(glob->shadowStyle,1, btags, bsizes, bvals);
-        }
-        
@@ -346 +355 @@
-        
-        CGContextClearRect(c, CGRectMake(0, 0, myDrp->width, myDrp->height));
-        CGContextSetRGBStrokeColor(c, 0,0,0,1);
-        CGContextSetTextDrawingMode(c, kCGTextFillStroke);
-        CGContextSetLineWidth(c, diagonalLength * BorderSizeRatio);
-
-        for (i = breakCount; i >= 0; i--) {
-                int end = breaks[i+1];
-                if (end == kATSUToTextEnd) end=sublen;
+                
+                // we draw shadow, then stroke text, then fill text
+                // this has several problems relating to hinting and line height and etc.
+                // ideally we'd draw the shadow of every line first (rather than shadow, text, next shadow, next text)
+                // and do a combined outside-stroke-then-fill operation on every line afterwards
+                // but ATSUI only has fill-then-stroke :(
+                CGContextSetTextDrawingMode(c, kCGTextFill);
+
+                ATSUSetRunStyle(glob->textLayout,glob->shadowStyle,kATSUFromTextBeginning,kATSUToTextEnd);
+                
+                ATSUDrawText(glob->textLayout, breaks[i], end-breaks[i], Long2Fix(0) + ShadowDistFix, lineHeight - ShadowDistFix);
+                
+                ATSUSetRunStyle(glob->textLayout,glob->textStyle,kATSUFromTextBeginning,kATSUToTextEnd);
+                
+                CGContextSetRGBStrokeColor(c, 0,0,0,1);
+                CGContextSetTextDrawingMode(c, kCGTextStroke);
+                CGContextSetLineWidth(c, diagonalLength * BorderSizeRatio);
+                
-                ATSUDrawText(glob->textLayout, breaks[i], end-breaks[i], Long2Fix(0), lineHeight);
-
+
-                ATSUTextMeasurement ascent, descent; ByteCount unused;
-                ATSUGetLineControl(glob->textLayout, breaks[i], kATSULineAscentTag, sizeof(ATSUTextMeasurement), &ascent, &unused);
-                ATSUGetLineControl(glob->textLayout, breaks[i], kATSULineDescentTag, sizeof(ATSUTextMeasurement), &descent, &unused);
+                
+                CGContextSetTextDrawingMode(c, kCGTextFill);
+
+                ATSUDrawText(glob->textLayout, breaks[i], end-breaks[i], Long2Fix(0), lineHeight);
+
+//              CGContextSetRGBFillColor(c, 0,0,0,1);
+//              CGContextSetTextDrawingMode(c, kCGTextFill);
+
-                lineHeight += ascent + descent;
-        }