Reorganization to put all code related to Ximages in the new

file tkMacOSXImage.c

1 files changed, 14 insertions, 173 deletions

diff --git a/macosx/tkMacOSXDraw.c b/macosx/tkMacOSXDraw.c
index 02ea812..274a2cd 100644
--- a/macosx/tkMacOSXDraw.c
+++ b/macosx/tkMacOSXDraw.c
@@ -16,7 +16,6 @@
 
 #include "tkMacOSXPrivate.h"
 #include "tkMacOSXDebug.h"
-#include "xbytes.h"
 #include "tkButton.h"
 
 /*
@@ -45,12 +44,6 @@ static int useThemedFrame = 0;
  */
 
 static void ClipToGC(Drawable d, GC gc, HIShapeRef *clipRgnPtr);
-static CGImageRef CreateCGImageWithXImage(XImage *ximage);
-static CGContextRef GetCGContextForDrawable(Drawable d);
-static void DrawCGImage(Drawable d, GC gc, CGContextRef context, CGImageRef image,
-	unsigned long imageForeground, unsigned long imageBackground,
-	CGRect imageBounds, CGRect srcBounds, CGRect dstBounds);
-
 
 /*
  *----------------------------------------------------------------------
@@ -108,7 +101,7 @@ TkMacOSXInitCGDrawing(
 /*
  *----------------------------------------------------------------------
  *
- * BitmapRepFromDrawableRect
+ * TkMacOSXBitmapRepFromDrawableRect
  *
  *	Extract bitmap data from a MacOSX drawable as an NSBitmapImageRep.
  *
@@ -126,7 +119,7 @@ TkMacOSXInitCGDrawing(
  *----------------------------------------------------------------------
  */
 NSBitmapImageRep*
-BitmapRepFromDrawableRect(
+TkMacOSXBitmapRepFromDrawableRect(
         Drawable drawable,
 	int x,
 	int y,
@@ -143,7 +136,7 @@ BitmapRepFromDrawableRect(
 	   This means that the MacDrawable is functioning as a Tk Pixmap, so its view
 	   field is NULL.
 	*/
-	cg_context = GetCGContextForDrawable(drawable);
+	cg_context = TkMacOSXGetCGContextForDrawable(drawable);
 	CGRect image_rect = CGRectMake(x, y, width, height);
 	cg_image = CGBitmapContextCreateImage( (CGContextRef) cg_context);
 	sub_cg_image = CGImageCreateWithImageInRect(cg_image, image_rect);
@@ -230,7 +223,7 @@ XCopyArea(
 	if (srcDraw->flags & TK_IS_PIXMAP) {
 	    img = TkMacOSXCreateCGImageWithDrawable(src);
 	}else if (TkMacOSXDrawableWindow(src)) {
-	    bitmap_rep =  BitmapRepFromDrawableRect(src, src_x, src_y, width, height);
+	    bitmap_rep =  TkMacOSXBitmapRepFromDrawableRect(src, src_x, src_y, width, height);
 	    if ( bitmap_rep ) {
 		img = [bitmap_rep CGImage];
 	    }
@@ -239,7 +232,7 @@ XCopyArea(
 	}
 
 	if (img) {
-	    DrawCGImage(dst, gc, dc.context, img, gc->foreground, gc->background,
+	    TkMacOSXDrawCGImage(dst, gc, dc.context, img, gc->foreground, gc->background,
 			CGRectMake(0, 0, srcDraw->size.width, srcDraw->size.height),
 			CGRectMake(src_x, src_y, width, height),
 			CGRectMake(dest_x, dest_y, width, height));
@@ -339,7 +332,7 @@ XCopyPlane(
 		    CGImageRelease(submask);
 		    CGImageRelease(subimage);
 		} else {
-		    DrawCGImage(dst, gc, dc.context, img, gc->foreground, imageBackground,
+		    TkMacOSXDrawCGImage(dst, gc, dc.context, img, gc->foreground, imageBackground,
 				CGRectMake(0, 0, srcDraw->size.width, srcDraw->size.height),
 				CGRectMake(src_x, src_y, width, height),
 				CGRectMake(dest_x, dest_y, width, height));
@@ -360,158 +353,6 @@ XCopyPlane(
 /*
  *----------------------------------------------------------------------
  *
- * TkPutImage --
- *
- *	Copies a subimage from an in-memory image to a rectangle of
- *	of the specified drawable.
- *
- * Results:
- *	None.
- *
- * Side effects:
- *	Draws the image on the specified drawable.
- *
- *----------------------------------------------------------------------
- */
-
-int
-TkPutImage(
-    unsigned long *colors,	/* Unused on Macintosh. */
-    int ncolors,			/* Unused on Macintosh. */
-    Display* display,		/* Display. */
-    Drawable d,			/* Drawable to place image on. */
-    GC gc,				/* GC to use. */
-    XImage* image,		/* Image to place. */
-    int src_x,			/* Source X & Y. */
-    int src_y,
-    int dest_x,			/* Destination X & Y. */
-    int dest_y,
-    unsigned int width,	/* Same width & height for both */
-    unsigned int height)	/* distination and source. */
-{
-    TkMacOSXDrawingContext dc;
-
-    display->request++;
-    if (!TkMacOSXSetupDrawingContext(d, gc, 1, &dc)) {
-	return BadDrawable;
-    }
-    if (dc.context) {
-	CGImageRef img = CreateCGImageWithXImage(image);
-
-	if (img) {
-	    /* If the XImage has big pixels, rescale the source dimensions.*/
-	    int pp = image->pixelpower;
-	    DrawCGImage(d, gc, dc.context, img, gc->foreground, gc->background,
-		    CGRectMake(0, 0, image->width<<pp, image->height<<pp),
-		    CGRectMake(src_x<<pp, src_y<<pp, width<<pp, height<<pp),
-		    CGRectMake(dest_x, dest_y, width, height));
-	    CFRelease(img);
-	} else {
-	    TkMacOSXDbgMsg("Invalid source drawable");
-	}
-    } else {
-	TkMacOSXDbgMsg("Invalid destination drawable");
-    }
-    TkMacOSXRestoreDrawingContext(&dc);
-    return Success;
-}
-
-/*
- *----------------------------------------------------------------------
- *
- * CreateCGImageWithXImage --
- *
- *	Create CGImage from XImage, copying the image data.
- *
- * Results:
- *	CGImage, release after use.
- *
- * Side effects:
- *	None.
- *
- *----------------------------------------------------------------------
- */
-
-static void ReleaseData(void *info, const void *data, size_t size) {
-    ckfree(info);
-}
-
-CGImageRef
-CreateCGImageWithXImage(
-    XImage *image)
-{
-    CGImageRef img = NULL;
-    size_t bitsPerComponent, bitsPerPixel;
-    size_t len = image->bytes_per_line * image->height;
-    const CGFloat *decode = NULL;
-    CGBitmapInfo bitmapInfo;
-    CGDataProviderRef provider = NULL;
-    char *data = NULL;
-    CGDataProviderReleaseDataCallback releaseData = ReleaseData;
-
-    if (image->bits_per_pixel == 1) {
-	/*
-	 * BW image
-	 */
-
-	/* Reverses the sense of the bits */
-	static const CGFloat decodeWB[2] = {1, 0};
-	decode = decodeWB;
-
-	bitsPerComponent = 1;
-	bitsPerPixel = 1;
-	if (image->bitmap_bit_order != MSBFirst) {
-	    char *srcPtr = image->data + image->xoffset;
-	    char *endPtr = srcPtr + len;
-	    char *destPtr = (data = ckalloc(len));
-
-	    while (srcPtr < endPtr) {
-		*destPtr++ = xBitReverseTable[(unsigned char)(*(srcPtr++))];
-	    }
-	} else {
-	    data = memcpy(ckalloc(len), image->data + image->xoffset, len);
-	}
-	if (data) {
-	    provider = CGDataProviderCreateWithData(data, data, len, releaseData);
-	}
-	if (provider) {
-	    img = CGImageMaskCreate(image->width, image->height, bitsPerComponent,
-				    bitsPerPixel, image->bytes_per_line, provider, decode, 0);
-	}
-    } else if (image->format == ZPixmap && image->bits_per_pixel == 32) {
-	/*
-	 * Color image
-	 */
-
-	CGColorSpaceRef colorspace = CGColorSpaceCreateDeviceRGB();
-
-	bitsPerComponent = 8;
-	bitsPerPixel = 32;
-	bitmapInfo = (image->byte_order == MSBFirst ?
-		kCGBitmapByteOrder32Big : kCGBitmapByteOrder32Little) |
-		kCGImageAlphaNoneSkipFirst;
-	data = memcpy(ckalloc(len), image->data + image->xoffset, len);
-	if (data) {
-	    provider = CGDataProviderCreateWithData(data, data, len, releaseData);
-	}
-	if (provider) {
-	    img = CGImageCreate(image->width, image->height, bitsPerComponent,
-		    bitsPerPixel, image->bytes_per_line, colorspace, bitmapInfo,
-		    provider, decode, 0, kCGRenderingIntentDefault);
-	    CFRelease(provider);
-	}
-	if (colorspace) {
-	    CFRelease(colorspace);
-	}
-    } else {
-	TkMacOSXDbgMsg("Unsupported image type");
-    }
-    return img;
-}
-
-/*
- *----------------------------------------------------------------------
- *
  * TkMacOSXCreateCGImageWithDrawable --
  *
  *	Create a CGImage from the given Drawable.
@@ -530,7 +371,7 @@ TkMacOSXCreateCGImageWithDrawable(
     Drawable drawable)
 {
     CGImageRef img = NULL;
-    CGContextRef context = GetCGContextForDrawable(drawable);
+    CGContextRef context = TkMacOSXGetCGContextForDrawable(drawable);
 
     if (context) {
 	img = CGBitmapContextCreateImage(context);
@@ -649,7 +490,7 @@ TkMacOSXGetNSImageWithBitmap(
 /*
  *----------------------------------------------------------------------
  *
- * GetCGContextForDrawable --
+ * TkMacOSXGetCGContextForDrawable --
  *
  *	Get CGContext for given Drawable, creating one if necessary.
  *
@@ -663,10 +504,10 @@ TkMacOSXGetNSImageWithBitmap(
  */
 
 CGContextRef
-GetCGContextForDrawable(
-    Drawable d)
+TkMacOSXGetCGContextForDrawable(
+    Drawable drawable)
 {
-    MacDrawable *macDraw = (MacDrawable *) d;
+    MacDrawable *macDraw = (MacDrawable *) drawable;
 
     if (macDraw && (macDraw->flags & TK_IS_PIXMAP) && !macDraw->context) {
 	const size_t bitsPerComponent = 8;
@@ -711,7 +552,7 @@ GetCGContextForDrawable(
 /*
  *----------------------------------------------------------------------
  *
- * DrawCGImage --
+ * TkMacOSXDrawCGImage --
  *
  *	Draw CG image into drawable.
  *
@@ -725,7 +566,7 @@ GetCGContextForDrawable(
  */
 
 void
-DrawCGImage(
+TkMacOSXDrawCGImage(
     Drawable d,
     GC gc,
     CGContextRef context,
@@ -1625,7 +1466,7 @@ TkMacOSXSetupDrawingContext(
 	goto end;
     }
     if (useCG) {
-	dc.context = GetCGContextForDrawable(d);
+	dc.context = TkMacOSXGetCGContextForDrawable(d);
     }
     if (!dc.context || !(macDraw->flags & TK_IS_PIXMAP)) {
 	isWin = (TkMacOSXDrawableWindow(d) != nil);