Imported nx-X11-3.1.0-1.tar.gznx-X11/3.1.0-1

Summary: Imported nx-X11-3.1.0-1.tar.gz
Keywords:

Imported nx-X11-3.1.0-1.tar.gz
into Git repository

1 files changed, 329 insertions, 0 deletions

diff --git a/nx-X11/programs/Xserver/Xprint/ps/PsImageUtil.c b/nx-X11/programs/Xserver/Xprint/ps/PsImageUtil.c
new file mode 100644
index 000000000..282786564
--- /dev/null
+++ b/nx-X11/programs/Xserver/Xprint/ps/PsImageUtil.c
@@ -0,0 +1,329 @@
+
+/* $Xorg: PsImageUtil.c,v 1.1 2005/03/25 1:19:56 gisburn Exp $ */
+/*
+Copyright (c) 2005 Roland Mainz <roland.mainz@nrubsig.org>
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL THE
+COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+
+Except as contained in this notice, the names of the copyright holders shall
+not be used in advertising or otherwise to promote the sale, use or other
+dealings in this Software without prior written authorization from said
+copyright holders.
+*/
+
+/* Please do not beat me for this ugly code - most of it has been stolen from
+ * xc/lib/X11/ImUtil.c */
+
+#ifdef HAVE_DIX_CONFIG_H
+#include <dix-config.h>
+#endif
+
+#include "gcstruct.h"
+#include "windowstr.h"
+#include "servermd.h"
+#include "attributes.h"
+
+static unsigned char const _reverse_byte[0x100] = {
+        0x00, 0x80, 0x40, 0xc0, 0x20, 0xa0, 0x60, 0xe0,
+        0x10, 0x90, 0x50, 0xd0, 0x30, 0xb0, 0x70, 0xf0,
+        0x08, 0x88, 0x48, 0xc8, 0x28, 0xa8, 0x68, 0xe8,
+        0x18, 0x98, 0x58, 0xd8, 0x38, 0xb8, 0x78, 0xf8,
+        0x04, 0x84, 0x44, 0xc4, 0x24, 0xa4, 0x64, 0xe4,
+        0x14, 0x94, 0x54, 0xd4, 0x34, 0xb4, 0x74, 0xf4,
+        0x0c, 0x8c, 0x4c, 0xcc, 0x2c, 0xac, 0x6c, 0xec,
+        0x1c, 0x9c, 0x5c, 0xdc, 0x3c, 0xbc, 0x7c, 0xfc,
+        0x02, 0x82, 0x42, 0xc2, 0x22, 0xa2, 0x62, 0xe2,
+        0x12, 0x92, 0x52, 0xd2, 0x32, 0xb2, 0x72, 0xf2,
+        0x0a, 0x8a, 0x4a, 0xca, 0x2a, 0xaa, 0x6a, 0xea,
+        0x1a, 0x9a, 0x5a, 0xda, 0x3a, 0xba, 0x7a, 0xfa,
+        0x06, 0x86, 0x46, 0xc6, 0x26, 0xa6, 0x66, 0xe6,
+        0x16, 0x96, 0x56, 0xd6, 0x36, 0xb6, 0x76, 0xf6,
+        0x0e, 0x8e, 0x4e, 0xce, 0x2e, 0xae, 0x6e, 0xee,
+        0x1e, 0x9e, 0x5e, 0xde, 0x3e, 0xbe, 0x7e, 0xfe,
+        0x01, 0x81, 0x41, 0xc1, 0x21, 0xa1, 0x61, 0xe1,
+        0x11, 0x91, 0x51, 0xd1, 0x31, 0xb1, 0x71, 0xf1,
+        0x09, 0x89, 0x49, 0xc9, 0x29, 0xa9, 0x69, 0xe9,
+        0x19, 0x99, 0x59, 0xd9, 0x39, 0xb9, 0x79, 0xf9,
+        0x05, 0x85, 0x45, 0xc5, 0x25, 0xa5, 0x65, 0xe5,
+        0x15, 0x95, 0x55, 0xd5, 0x35, 0xb5, 0x75, 0xf5,
+        0x0d, 0x8d, 0x4d, 0xcd, 0x2d, 0xad, 0x6d, 0xed,
+        0x1d, 0x9d, 0x5d, 0xdd, 0x3d, 0xbd, 0x7d, 0xfd,
+        0x03, 0x83, 0x43, 0xc3, 0x23, 0xa3, 0x63, 0xe3,
+        0x13, 0x93, 0x53, 0xd3, 0x33, 0xb3, 0x73, 0xf3,
+        0x0b, 0x8b, 0x4b, 0xcb, 0x2b, 0xab, 0x6b, 0xeb,
+        0x1b, 0x9b, 0x5b, 0xdb, 0x3b, 0xbb, 0x7b, 0xfb,
+        0x07, 0x87, 0x47, 0xc7, 0x27, 0xa7, 0x67, 0xe7,
+        0x17, 0x97, 0x57, 0xd7, 0x37, 0xb7, 0x77, 0xf7,
+        0x0f, 0x8f, 0x4f, 0xcf, 0x2f, 0xaf, 0x6f, 0xef,
+        0x1f, 0x9f, 0x5f, 0xdf, 0x3f, 0xbf, 0x7f, 0xff
+};
+
+static
+int XReverse_Bytes(
+    register unsigned char *bpt,
+    register int nb)
+{
+    do {
+        *bpt = _reverse_byte[*bpt];
+        bpt++;
+    } while (--nb > 0);
+    return 0;
+}
+
+/*
+ * Data structure for "image" data, used by image manipulation routines.
+ */
+typedef struct {
+    int width, height;          /* size of image */
+    int xoffset;                /* number of pixels offset in X direction */
+    int format;                 /* XYBitmap, XYPixmap, ZPixmap */
+    char *data;                 /* pointer to image data */
+    int byte_order;             /* data byte order, LSBFirst, MSBFirst */
+    int bitmap_unit;            /* quant. of scanline 8, 16, 32 */
+    int bitmap_bit_order;       /* LSBFirst, MSBFirst */
+    int depth;                  /* depth of image */
+    int bytes_per_line;         /* accelarator to next line */
+    int bits_per_pixel;         /* bits per pixel (ZPixmap) */
+} TmpImage;
+
+
+static void xynormalizeimagebits (
+    register unsigned char *bp,
+    register TmpImage *img)
+{
+	register unsigned char c;
+
+	if (img->byte_order != img->bitmap_bit_order) {
+	    switch (img->bitmap_unit) {
+
+		case 16:
+		    c = *bp;
+		    *bp = *(bp + 1);
+		    *(bp + 1) = c;
+		    break;
+
+		case 32:
+		    c = *(bp + 3);
+		    *(bp + 3) = *bp;
+		    *bp = c;
+		    c = *(bp + 2);
+		    *(bp + 2) = *(bp + 1);
+		    *(bp + 1) = c;
+		    break;
+	    }
+	}
+	if (img->bitmap_bit_order == MSBFirst)
+	    XReverse_Bytes (bp, img->bitmap_unit >> 3);
+}
+
+static void znormalizeimagebits (
+    register unsigned char *bp,
+    register TmpImage *img)
+{
+	register unsigned char c;
+	switch (img->bits_per_pixel) {
+
+	    case 4:
+		*bp = ((*bp >> 4) & 0xF) | ((*bp << 4) & ~0xF);
+		break;
+
+	    case 16:
+		c = *bp;
+		*bp = *(bp + 1);
+		*(bp + 1) = c;
+		break;
+
+	    case 24:
+		c = *(bp + 2);
+		*(bp + 2) = *bp;
+		*bp = c;
+		break;
+
+	    case 32:
+		c = *(bp + 3);
+		*(bp + 3) = *bp;
+		*bp = c;
+		c = *(bp + 2);
+		*(bp + 2) = *(bp + 1);
+		*(bp + 1) = c;
+		break;
+	}
+}
+
+/*
+ * Macros
+ * 
+ * The ROUNDUP macro rounds up a quantity to the specified boundary,
+ * then truncates to bytes.
+ *
+ * The XYNORMALIZE macro determines whether XY format data requires 
+ * normalization and calls a routine to do so if needed. The logic in
+ * this module is designed for LSBFirst byte and bit order, so 
+ * normalization is done as required to present the data in this order.
+ *
+ * The ZNORMALIZE macro performs byte and nibble order normalization if 
+ * required for Z format data.
+ *
+ * The XYINDEX macro computes the index to the starting byte (char) boundary
+ * for a bitmap_unit containing a pixel with coordinates x and y for image
+ * data in XY format.
+ * 
+ * The ZINDEX macro computes the index to the starting byte (char) boundary 
+ * for a pixel with coordinates x and y for image data in ZPixmap format.
+ * 
+ */
+
+#if defined(Lynx) && defined(ROUNDUP)
+#undef ROUNDUP
+#endif
+
+#define ROUNDUP(nbytes, pad) ((((nbytes) + ((pad)-1)) / (pad)) * ((pad)>>3))
+
+#define XYNORMALIZE(bp, img) \
+    if ((img->byte_order == MSBFirst) || (img->bitmap_bit_order == MSBFirst)) \
+	xynormalizeimagebits((unsigned char *)(bp), img)
+
+#define ZNORMALIZE(bp, img) \
+    if (img->byte_order == MSBFirst) \
+	znormalizeimagebits((unsigned char *)(bp), img)
+
+#define XYINDEX(x, y, img) \
+    ((y) * img->bytes_per_line) + \
+    (((x) + img->xoffset) / img->bitmap_unit) * (img->bitmap_unit >> 3)
+
+#define ZINDEX(x, y, img) ((y) * img->bytes_per_line) + \
+    (((x) * img->bits_per_pixel) >> 3)
+
+/*
+ * GetPixel
+ * 
+ * Returns the specified pixel.  The X and Y coordinates are relative to 
+ * the origin (upper left [0,0]) of the image.  The pixel value is returned
+ * in normalized format, i.e. the LSB of the long is the LSB of the pixel.
+ * The algorithm used is:
+ *
+ *	copy the source bitmap_unit or Zpixel into temp
+ *	normalize temp if needed
+ *	extract the pixel bits into return value
+ *
+ */
+
+static unsigned long const low_bits_table[] = {
+    0x00000000, 0x00000001, 0x00000003, 0x00000007,
+    0x0000000f, 0x0000001f, 0x0000003f, 0x0000007f,
+    0x000000ff, 0x000001ff, 0x000003ff, 0x000007ff,
+    0x00000fff, 0x00001fff, 0x00003fff, 0x00007fff,
+    0x0000ffff, 0x0001ffff, 0x0003ffff, 0x0007ffff,
+    0x000fffff, 0x001fffff, 0x003fffff, 0x007fffff,
+    0x00ffffff, 0x01ffffff, 0x03ffffff, 0x07ffffff,
+    0x0fffffff, 0x1fffffff, 0x3fffffff, 0x7fffffff,
+    0xffffffff
+};
+
+static unsigned long XGetPixel (TmpImage *ximage, int x, int y)
+{
+	unsigned long pixel, px;
+	register char *src;
+	register char *dst;
+	register int i, j;
+	int bits, nbytes;
+	long plane;
+     
+	if ((ximage->bits_per_pixel | ximage->depth) == 1) {
+		src = &ximage->data[XYINDEX(x, y, ximage)];
+		dst = (char *)&pixel;
+		pixel = 0;
+		for (i = ximage->bitmap_unit >> 3; --i >= 0; ) *dst++ = *src++;
+		XYNORMALIZE(&pixel, ximage);
+          	bits = (x + ximage->xoffset) % ximage->bitmap_unit;
+		pixel = ((((char *)&pixel)[bits>>3])>>(bits&7)) & 1;
+	} else if (ximage->format == XYPixmap) {
+		pixel = 0;
+		plane = 0;
+		nbytes = ximage->bitmap_unit >> 3;
+		for (i = ximage->depth; --i >= 0; ) {
+		    src = &ximage->data[XYINDEX(x, y, ximage)+ plane];
+		    dst = (char *)&px;
+		    px = 0;
+		    for (j = nbytes; --j >= 0; ) *dst++ = *src++;
+		    XYNORMALIZE(&px, ximage);
+		    bits = (x + ximage->xoffset) % ximage->bitmap_unit;
+		    pixel = (pixel << 1) |
+			    (((((char *)&px)[bits>>3])>>(bits&7)) & 1);
+		    plane = plane + (ximage->bytes_per_line * ximage->height);
+		}
+	} else if (ximage->format == ZPixmap) {
+		src = &ximage->data[ZINDEX(x, y, ximage)];
+		dst = (char *)&px;
+		px = 0;
+		for (i = (ximage->bits_per_pixel + 7) >> 3; --i >= 0; )
+		    *dst++ = *src++;		
+		ZNORMALIZE(&px, ximage);
+		pixel = 0;
+		for (i=sizeof(unsigned long); --i >= 0; )
+		    pixel = (pixel << 8) | ((unsigned char *)&px)[i];
+		if (ximage->bits_per_pixel == 4) {
+		    if (x & 1)
+			pixel >>= 4;
+		    else
+			pixel &= 0xf;
+		}
+	} else {
+		return 0; /* bad image */
+	}
+	if (ximage->bits_per_pixel == ximage->depth)
+	  return pixel;
+	else
+	  return (pixel & low_bits_table[ximage->depth]);
+}
+
+unsigned long
+PsGetImagePixel(char *pImage, int depth, int w, int h, int leftPad, int format,
+                int px, int py)
+{
+  TmpImage xi = {0};
+  
+  xi.width            = w;
+  xi.height           = h;
+  xi.xoffset          = 0/*leftPad*/;
+  xi.format           = format;
+  xi.data             = pImage;
+  xi.byte_order       = IMAGE_BYTE_ORDER;
+  xi.bitmap_bit_order = BITMAP_BIT_ORDER;
+  xi.bitmap_unit      = ((depth > 16)?(32):
+                        ((depth >  8)?(16):
+                        ((depth >  1)? (8):
+                                  (1))));
+  xi.depth            = depth;
+  xi.bits_per_pixel   = xi.bitmap_unit;
+
+  /*
+   * compute per line accelerator.
+   */
+  if (format == ZPixmap)
+      xi.bytes_per_line = 
+          ROUNDUP((xi.bits_per_pixel * xi.width), 32);
+  else
+      xi.bytes_per_line =
+          ROUNDUP((xi.width + xi.xoffset), 32); 
+
+  return XGetPixel(&xi, px, py);
+}
+
+
+