/*!
* pixaReadFiles()
*
* Input: dirname
* substr (<optional> substring filter on filenames; can be null)
* Return: pixa, or null on error
*
* Notes:
* (1) @dirname is the full path for the directory.
* (2) @substr is the part of the file name (excluding
* the directory) that is to be matched. All matching
* filenames are read into the Pixa. If substr is NULL,
* all filenames are read into the Pixa.
*/
PIXA *
pixaReadFiles(const char *dirname,
const char *substr)
{
PIXA *pixa;
SARRAY *sa;
PROCNAME("pixaReadFiles");
if (!dirname)
return (PIXA *)ERROR_PTR("dirname not defined", procName, NULL);
if ((sa = getSortedPathnamesInDirectory(dirname, substr, 0, 0)) == NULL)
return (PIXA *)ERROR_PTR("sa not made", procName, NULL);
pixa = pixaReadFilesSA(sa);
sarrayDestroy(&sa);
return pixa;
}
int main(int argc,
char **argv)
{
l_int32 i, w, h;
l_float32 factor, scale;
BOX *box;
FILE *fp1;
PIX *pixs, *pixt;
PIXA *pixa;
SARRAY *sa;
L_REGPARAMS *rp;
if (regTestSetup(argc, argv, &rp))
return 1;
factor = 0.95;
/* Uncompressed PS with scaling but centered on the page */
pixs = pixRead("feyn-fract.tif");
pixGetDimensions(pixs, &w, &h, NULL);
scale = L_MIN(factor * 2550 / w, factor * 3300 / h);
fp1 = lept_fopen("/tmp/regout/psio0.ps", "wb+");
pixWriteStreamPS(fp1, pixs, NULL, 300, scale);
lept_fclose(fp1);
regTestCheckFile(rp, "/tmp/regout/psio0.ps"); /* 0 */
pixDestroy(&pixs);
/* Uncompressed PS with scaling, with LL corner at (1500, 1500) mils */
pixs = pixRead("weasel4.11c.png");
pixGetDimensions(pixs, &w, &h, NULL);
scale = L_MIN(factor * 2550 / w, factor * 3300 / h);
box = boxCreate(1500, 1500, (l_int32)(1000 * scale * w / 300),
(l_int32)(1000 * scale * h / 300));
fp1 = lept_fopen("/tmp/regout/psio1.ps", "wb+");
pixWriteStreamPS(fp1, pixs, box, 300, 1.0);
lept_fclose(fp1);
regTestCheckFile(rp, "/tmp/regout/psio1.ps"); /* 1 */
boxDestroy(&box);
pixDestroy(&pixs);
/* DCT compressed PS with LL corner at (300, 1000) pixels */
pixs = pixRead("marge.jpg");
pixt = pixConvertTo32(pixs);
pixWrite("/tmp/regout/psio2.jpg", pixt, IFF_JFIF_JPEG);
convertJpegToPS("/tmp/regout/psio2.jpg", "/tmp/regout/psio3.ps",
"w", 300, 1000, 0, 4.0, 1, 1);
regTestCheckFile(rp, "/tmp/regout/psio2.jpg"); /* 2 */
regTestCheckFile(rp, "/tmp/regout/psio3.ps"); /* 3 */
pixDestroy(&pixt);
pixDestroy(&pixs);
/* For each page, apply tiff g4 image first; then jpeg or png over it */
convertG4ToPS("feyn.tif", "/tmp/regout/psio4.ps", "w",
0, 0, 0, 1.0, 1, 1, 0);
convertJpegToPS("marge.jpg", "/tmp/regout/psio4.ps",
"a", 500, 100, 300, 2.0, 1, 0);
convertFlateToPS("weasel4.11c.png", "/tmp/regout/psio4.ps",
"a", 300, 400, 300, 6.0, 1, 0);
convertJpegToPS("marge.jpg", "/tmp/regout/psio4.ps",
"a", 100, 800, 300, 1.5, 1, 1);
convertG4ToPS("feyn.tif", "/tmp/regout/psio4.ps",
"a", 0, 0, 0, 1.0, 2, 1, 0);
convertJpegToPS("marge.jpg", "/tmp/regout/psio4.ps",
"a", 1000, 700, 300, 2.0, 2, 0);
convertJpegToPS("marge.jpg", "/tmp/regout/psio4.ps",
"a", 100, 200, 300, 2.0, 2, 1);
convertG4ToPS("feyn.tif", "/tmp/regout/psio4.ps",
"a", 0, 0, 0, 1.0, 3, 1, 0);
convertJpegToPS("marge.jpg", "/tmp/regout/psio4.ps",
"a", 200, 200, 300, 2.0, 3, 0);
convertJpegToPS("marge.jpg", "/tmp/regout/psio4.ps",
"a", 200, 900, 300, 2.0, 3, 1);
regTestCheckFile(rp, "/tmp/regout/psio4.ps"); /* 4 */
/* Now apply jpeg first; then paint through a g4 mask.
* For gv, the first image with a b.b. determines the
* window size for the canvas, so we put down the largest
* image first. If we had rendered a small image first,
* gv and evince will not show the entire page. However, after
* conversion to pdf, everything works fine, regardless of the
* order in which images are placed into the PS. That is
* because the pdf interpreter is robust to bad hints, ignoring
* the page hints and computing the bounding box from the
* set of images rendered on the page.
*
* Concatenate several pages, with colormapped png, color
* jpeg and tiffg4 images (with the g4 image acting as a mask
* that we're painting black through. If the text layer
* is painted first, the following images occlude it; otherwise,
* the images remain in the background of the text. */
pixs = pixRead("wyom.jpg");
pixt = pixScaleToSize(pixs, 2528, 3300);
pixWrite("/tmp/regout/psio5.jpg", pixt, IFF_JFIF_JPEG);
pixDestroy(&pixs);
pixDestroy(&pixt);
convertJpegToPS("/tmp/regout/psio5.jpg", "/tmp/regout/psio5.ps",
"w", 0, 0, 300, 1.0, 1, 0);
convertFlateToPS("weasel8.240c.png", "/tmp/regout/psio5.ps",
"a", 100, 100, 300, 5.0, 1, 0);
convertFlateToPS("weasel8.149g.png", "/tmp/regout/psio5.ps",
"a", 200, 300, 300, 5.0, 1, 0);
convertFlateToPS("weasel4.11c.png", "/tmp/regout/psio5.ps",
"a", 300, 500, 300, 5.0, 1, 0);
convertG4ToPS("feyn.tif", "/tmp/regout/psio5.ps",
"a", 0, 0, 0, 1.0, 1, 1, 1);
convertJpegToPS("marge.jpg", "/tmp/regout/psio5.ps",
"a", 500, 100, 300, 2.0, 2, 0);
convertFlateToPS("weasel4.11c.png", "/tmp/regout/psio5.ps",
"a", 300, 400, 300, 6.0, 2, 0);
convertJpegToPS("marge.jpg", "/tmp/regout/psio5.ps",
"a", 100, 800, 300, 1.5, 2, 0);
convertG4ToPS("feyn.tif", "/tmp/regout/psio5.ps",
"a", 0, 0, 0, 1.0, 2, 1, 1);
convertJpegToPS("marge.jpg", "/tmp/regout/psio5.ps",
"a", 500, 100, 300, 2.0, 3, 0);
convertJpegToPS("marge.jpg", "/tmp/regout/psio5.ps",
"a", 100, 800, 300, 2.0, 3, 0);
convertG4ToPS("feyn.tif", "/tmp/regout/psio5.ps",
"a", 0, 0, 0, 1.0, 3, 1, 1);
convertJpegToPS("marge.jpg", "/tmp/regout/psio5.ps",
"a", 700, 700, 300, 2.0, 4, 0);
convertFlateToPS("weasel8.149g.png", "/tmp/regout/psio5.ps",
"a", 400, 400, 300, 5.0, 4, 0);
convertG4ToPS("feyn.tif", "/tmp/regout/psio5.ps",
"a", 0, 0, 0, 1.0, 4, 1, 0);
convertFlateToPS("weasel8.240c.png", "/tmp/regout/psio5.ps",
"a", 100, 220, 300, 5.0, 4, 0);
convertJpegToPS("marge.jpg", "/tmp/regout/psio5.ps",
"a", 100, 200, 300, 2.0, 4, 1);
convertJpegToPS("marge.jpg", "/tmp/regout/psio5.ps",
"a", 200, 200, 300, 1.5, 5, 0);
convertFlateToPS("weasel8.240c.png", "/tmp/regout/psio5.ps",
"a", 140, 80, 300, 7.0, 5, 0);
convertG4ToPS("feyn.tif", "/tmp/regout/psio5.ps",
"a", 0, 0, 0, 1.0, 5, 1, 0);
convertFlateToPS("weasel8.149g.png", "/tmp/regout/psio5.ps",
"a", 280, 310, 300, 5.0, 4, 0);
convertJpegToPS("marge.jpg", "/tmp/regout/psio5.ps",
"a", 200, 900, 300, 2.0, 5, 1);
regTestCheckFile(rp, "/tmp/regout/psio5.ps"); /* 5 */
/* Generation using segmentation masks */
convertSegmentedPagesToPS(".", "lion-page", 10, ".", "lion-mask", 10,
0, 100, 2.0, 0.8, 190, "/tmp/regout/psio6.ps");
regTestCheckFile(rp, "/tmp/regout/psio6.ps"); /* 6 */
/* PS generation for embeddding */
convertJpegToPSEmbed("tetons.jpg", "/tmp/regout/psio7.ps");
regTestCheckFile(rp, "/tmp/regout/psio7.ps"); /* 7 */
convertG4ToPSEmbed("feyn-fract.tif", "/tmp/regout/psio8.ps");
regTestCheckFile(rp, "/tmp/regout/psio8.ps"); /* 8 */
convertFlateToPSEmbed("weasel8.240c.png", "/tmp/regout/psio9.ps");
regTestCheckFile(rp, "/tmp/regout/psio9.ps"); /* 9 */
/* Writing compressed from a pixa */
sa = sarrayCreate(0);
for (i = 0; i < 11; i++)
sarrayAddString(sa, WeaselNames[i], L_COPY);
pixa = pixaReadFilesSA(sa);
pixaWriteCompressedToPS(pixa, "/tmp/regout/psio10.ps", 0, 3);
regTestCheckFile(rp, "/tmp/regout/psio10.ps"); /* 10 */
pixaDestroy(&pixa);
sarrayDestroy(&sa);
return regTestCleanup(rp);
}