/*====================================================================* - Copyright (C) 2001 Leptonica. All rights reserved. - - Redistribution and use in source and binary forms, with or without - modification, are permitted provided that the following conditions - are met: - 1. Redistributions of source code must retain the above copyright - notice, this list of conditions and the following disclaimer. - 2. Redistributions in binary form must reproduce the above - copyright notice, this list of conditions and the following - disclaimer in the documentation and/or other materials - provided with the distribution. - - THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS - ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT - LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR - A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL ANY - CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, - EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, - PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR - PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY - OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING - NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS - SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. *====================================================================*/ /* * shear2_reg.c * * Regression test for quadratic shear, both sampled and interpolated. */ #ifdef HAVE_CONFIG_H #include #endif /* HAVE_CONFIG_H */ #include "allheaders.h" void PixSave(PIX **ppixs, PIXA *pixa, l_int32 newrow, L_BMF *bmf, const char *textstr); l_int32 main(int argc, char **argv) { L_BMF *bmf; PIX *pixs1, *pixs2, *pixg, *pixt, *pixd; PIXA *pixa; L_REGPARAMS *rp; #if !defined(HAVE_LIBPNG) L_ERROR("This test requires libpng to run.\n", "shear2_reg"); exit(77); #endif if (regTestSetup(argc, argv, &rp)) return 1; bmf = bmfCreate("./fonts", 8); pixs1 = pixCreate(301, 301, 32); pixs2 = pixCreate(601, 601, 32); pixSetAll(pixs1); pixSetAll(pixs2); pixRenderLineArb(pixs1, 0, 20, 300, 20, 5, 0, 0, 255); pixRenderLineArb(pixs1, 0, 70, 300, 70, 5, 0, 255, 0); pixRenderLineArb(pixs1, 0, 120, 300, 120, 5, 0, 255, 255); pixRenderLineArb(pixs1, 0, 170, 300, 170, 5, 255, 0, 0); pixRenderLineArb(pixs1, 0, 220, 300, 220, 5, 255, 0, 255); pixRenderLineArb(pixs1, 0, 270, 300, 270, 5, 255, 255, 0); pixRenderLineArb(pixs2, 0, 20, 300, 20, 5, 0, 0, 255); pixRenderLineArb(pixs2, 0, 70, 300, 70, 5, 0, 255, 0); pixRenderLineArb(pixs2, 0, 120, 300, 120, 5, 0, 255, 255); pixRenderLineArb(pixs2, 0, 170, 300, 170, 5, 255, 0, 0); pixRenderLineArb(pixs2, 0, 220, 300, 220, 5, 255, 0, 255); pixRenderLineArb(pixs2, 0, 270, 300, 270, 5, 255, 255, 0); /* Color, small pix */ pixa = pixaCreate(0); pixt = pixQuadraticVShear(pixs1, L_WARP_TO_LEFT, 60, -20, L_SAMPLED, L_BRING_IN_WHITE); PixSave(&pixt, pixa, 1, bmf, "sampled-left"); pixt = pixQuadraticVShear(pixs1, L_WARP_TO_RIGHT, 60, -20, L_SAMPLED, L_BRING_IN_WHITE); PixSave(&pixt, pixa, 0, bmf, "sampled-right"); pixt = pixQuadraticVShear(pixs1, L_WARP_TO_LEFT, 60, -20, L_INTERPOLATED, L_BRING_IN_WHITE); PixSave(&pixt, pixa, 1, bmf, "interpolated-left"); pixt = pixQuadraticVShear(pixs1, L_WARP_TO_RIGHT, 60, -20, L_INTERPOLATED, L_BRING_IN_WHITE); PixSave(&pixt, pixa, 0, bmf, "interpolated-right"); pixd = pixaDisplayTiledInColumns(pixa, 2, 1.0, 20, 0); regTestWritePixAndCheck(rp, pixd, IFF_PNG); pixDisplayWithTitle(pixd, 50, 50, NULL, rp->display); pixDestroy(&pixd); pixaDestroy(&pixa); /* Grayscale, small pix */ pixg = pixConvertTo8(pixs1, 0); pixa = pixaCreate(0); pixt = pixQuadraticVShear(pixg, L_WARP_TO_LEFT, 60, -20, L_SAMPLED, L_BRING_IN_WHITE); PixSave(&pixt, pixa, 1, bmf, "sampled-left"); pixt = pixQuadraticVShear(pixg, L_WARP_TO_RIGHT, 60, -20, L_SAMPLED, L_BRING_IN_WHITE); PixSave(&pixt, pixa, 0, bmf, "sampled-right"); pixt = pixQuadraticVShear(pixg, L_WARP_TO_LEFT, 60, -20, L_INTERPOLATED, L_BRING_IN_WHITE); PixSave(&pixt, pixa, 1, bmf, "interpolated-left"); pixt = pixQuadraticVShear(pixg, L_WARP_TO_RIGHT, 60, -20, L_INTERPOLATED, L_BRING_IN_WHITE); PixSave(&pixt, pixa, 0, bmf, "interpolated-right"); pixd = pixaDisplayTiledInColumns(pixa, 2, 1.0, 20, 0); regTestWritePixAndCheck(rp, pixd, IFF_PNG); pixDisplayWithTitle(pixd, 250, 50, NULL, rp->display); pixDestroy(&pixg); pixDestroy(&pixd); pixaDestroy(&pixa); /* Color, larger pix */ pixa = pixaCreate(0); pixt = pixQuadraticVShear(pixs2, L_WARP_TO_LEFT, 120, -40, L_SAMPLED, L_BRING_IN_WHITE); PixSave(&pixt, pixa, 1, bmf, "sampled-left"); pixt = pixQuadraticVShear(pixs2, L_WARP_TO_RIGHT, 120, -40, L_SAMPLED, L_BRING_IN_WHITE); PixSave(&pixt, pixa, 0, bmf, "sampled-right"); pixt = pixQuadraticVShear(pixs2, L_WARP_TO_LEFT, 120, -40, L_INTERPOLATED, L_BRING_IN_WHITE); PixSave(&pixt, pixa, 1, bmf, "interpolated-left"); pixt = pixQuadraticVShear(pixs2, L_WARP_TO_RIGHT, 120, -40, L_INTERPOLATED, L_BRING_IN_WHITE); PixSave(&pixt, pixa, 0, bmf, "interpolated-right"); pixd = pixaDisplayTiledInColumns(pixa, 2, 1.0, 20, 0); regTestWritePixAndCheck(rp, pixd, IFF_PNG); pixDisplayWithTitle(pixd, 550, 50, NULL, rp->display); pixDestroy(&pixd); pixaDestroy(&pixa); /* Grayscale, larger pix */ pixg = pixConvertTo8(pixs2, 0); pixa = pixaCreate(0); pixt = pixQuadraticVShear(pixg, L_WARP_TO_LEFT, 60, -20, L_SAMPLED, L_BRING_IN_WHITE); PixSave(&pixt, pixa, 1, bmf, "sampled-left"); pixt = pixQuadraticVShear(pixg, L_WARP_TO_RIGHT, 60, -20, L_SAMPLED, L_BRING_IN_WHITE); PixSave(&pixt, pixa, 0, bmf, "sampled-right"); pixt = pixQuadraticVShear(pixg, L_WARP_TO_LEFT, 60, -20, L_INTERPOLATED, L_BRING_IN_WHITE); PixSave(&pixt, pixa, 1, bmf, "interpolated-left"); pixt = pixQuadraticVShear(pixg, L_WARP_TO_RIGHT, 60, -20, L_INTERPOLATED, L_BRING_IN_WHITE); PixSave(&pixt, pixa, 0, bmf, "interpolated-right"); pixd = pixaDisplayTiledInColumns(pixa, 2, 1.0, 20, 0); regTestWritePixAndCheck(rp, pixd, IFF_PNG); pixDisplayWithTitle(pixd, 850, 50, NULL, rp->display); pixDestroy(&pixg); pixDestroy(&pixd); pixaDestroy(&pixa); pixDestroy(&pixs1); pixDestroy(&pixs2); bmfDestroy(&bmf); return regTestCleanup(rp); } void PixSave(PIX **ppixs, PIXA *pixa, l_int32 newrow, L_BMF *bmf, const char *textstr) { PIX *pix1, *pix2, *pix3; pix1 = pixConvertTo32(*ppixs); pix2 = pixAddBorder(pix1, 3, 0); pix3 = pixAddSingleTextblock(pix2, bmf, textstr, 0xff000000, L_ADD_BELOW, NULL); pixaAddPix(pixa, pix3, L_INSERT); pixDestroy(&pix1); pixDestroy(&pix2); pixDestroy(ppixs); }