HelenOS sources

root/uspace/lib/gfxfont/test/tpf.c

DEFINITIONS

1. PCUT_TEST
2. testgc_set_clip_rect
3. testgc_set_color
4. testgc_fill_rect
5. testgc_bitmap_create
6. testgc_bitmap_destroy
7. testgc_bitmap_render
8. testgc_bitmap_get_alloc

/*
 * Copyright (c) 2021 Jiri Svoboda
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 * - Redistributions of source code must retain the above copyright
 *   notice, this list of conditions and the following disclaimer.
 * - 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.
 * - The name of the author may not be used to endorse or promote products
 *   derived from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 THE AUTHOR 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.
 */

#include <gfx/context.h>
#include <gfx/font.h>
#include <gfx/glyph.h>
#include <gfx/glyph_bmp.h>
#include <gfx/typeface.h>
#include <pcut/pcut.h>
#include <str.h>
#include "../private/font.h"
#include "../private/typeface.h"

PCUT_INIT;

PCUT_TEST_SUITE(tpf);

static errno_t testgc_set_clip_rect(void *, gfx_rect_t *);
static errno_t testgc_set_color(void *, gfx_color_t *);
static errno_t testgc_fill_rect(void *, gfx_rect_t *);
static errno_t testgc_bitmap_create(void *, gfx_bitmap_params_t *,
    gfx_bitmap_alloc_t *, void **);
static errno_t testgc_bitmap_destroy(void *);
static errno_t testgc_bitmap_render(void *, gfx_rect_t *, gfx_coord2_t *);
static errno_t testgc_bitmap_get_alloc(void *, gfx_bitmap_alloc_t *);

static gfx_context_ops_t test_ops = {
        .set_clip_rect = testgc_set_clip_rect,
        .set_color = testgc_set_color,
        .fill_rect = testgc_fill_rect,
        .bitmap_create = testgc_bitmap_create,
        .bitmap_destroy = testgc_bitmap_destroy,
        .bitmap_render = testgc_bitmap_render,
        .bitmap_get_alloc = testgc_bitmap_get_alloc
};

typedef struct {
        gfx_bitmap_params_t bm_params;
        void *bm_pixels;
        gfx_rect_t bm_srect;
        gfx_coord2_t bm_offs;
} test_gc_t;

typedef struct {
        test_gc_t *tgc;
        gfx_bitmap_alloc_t alloc;
        bool myalloc;
} testgc_bitmap_t;

static const gfx_font_flags_t test_font_flags = gff_bold_italic;

enum {
        test_font_size = 9,
        test_font_ascent = 4,
        test_font_descent = 3,
        test_font_leading = 2,
        test_glyph_advance = 10
};

static const char *test_glyph_pattern = "ff";

/** Test saving typeface to and loading from TPF file */
PCUT_TEST(save_load)
{
        char fname[L_tmpnam];
        char *p;
        gfx_font_props_t props;
        gfx_font_props_t rprops;
        gfx_font_metrics_t metrics;
        gfx_font_metrics_t rmetrics;
        gfx_glyph_metrics_t gmetrics;
        gfx_glyph_metrics_t rgmetrics;
        gfx_glyph_pattern_t *pat;
        const char *str;
        gfx_typeface_t *tface;
        gfx_font_t *font;
        gfx_font_info_t *finfo;
        gfx_context_t *gc;
        gfx_glyph_t *glyph;
        gfx_glyph_bmp_t *bmp;
        int pix;
        test_gc_t tgc;
        errno_t rc;

        p = tmpnam(fname);
        PCUT_ASSERT_NOT_NULL(p);

        rc = gfx_context_new(&test_ops, (void *)&tgc, &gc);
        PCUT_ASSERT_ERRNO_VAL(EOK, rc);

        rc = gfx_typeface_create(gc, &tface);
        PCUT_ASSERT_ERRNO_VAL(EOK, rc);

        gfx_font_props_init(&props);
        props.size = test_font_size;
        props.flags = test_font_flags;

        gfx_font_metrics_init(&metrics);
        metrics.ascent = test_font_ascent;
        metrics.descent = test_font_descent;
        metrics.leading = test_font_leading;

        rc = gfx_font_create(tface, &props, &metrics, &font);
        PCUT_ASSERT_ERRNO_VAL(EOK, rc);

        gfx_glyph_metrics_init(&gmetrics);
        gmetrics.advance = test_glyph_advance;

        rc = gfx_glyph_create(font, &gmetrics, &glyph);
        PCUT_ASSERT_ERRNO_VAL(EOK, rc);

        rc = gfx_glyph_set_pattern(glyph, test_glyph_pattern);
        PCUT_ASSERT_ERRNO_VAL(EOK, rc);

        rc = gfx_glyph_bmp_open(glyph, &bmp);
        PCUT_ASSERT_ERRNO_VAL(EOK, rc);

        rc = gfx_glyph_bmp_setpix(bmp, 0, 0, 1);
        PCUT_ASSERT_ERRNO_VAL(EOK, rc);

        rc = gfx_glyph_bmp_setpix(bmp, 1, 1, 1);
        PCUT_ASSERT_ERRNO_VAL(EOK, rc);

        rc = gfx_glyph_bmp_save(bmp);
        PCUT_ASSERT_ERRNO_VAL(EOK, rc);

        gfx_glyph_bmp_close(bmp);

        rc = gfx_typeface_save(tface, fname);
        PCUT_ASSERT_ERRNO_VAL(EOK, rc);

        gfx_typeface_destroy(tface);
        tface = NULL;

        rc = gfx_typeface_open(gc, fname, &tface);
        PCUT_ASSERT_ERRNO_VAL(EOK, rc);
        PCUT_ASSERT_NOT_NULL(tface);

        finfo = gfx_typeface_first_font(tface);
        PCUT_ASSERT_NOT_NULL(finfo);

        gfx_font_get_props(finfo, &rprops);
        PCUT_ASSERT_INT_EQUALS(props.size, rprops.size);
        PCUT_ASSERT_INT_EQUALS(props.flags, rprops.flags);

        rc = gfx_font_open(finfo, &font);
        PCUT_ASSERT_ERRNO_VAL(EOK, rc);
        PCUT_ASSERT_NOT_NULL(font);

        gfx_font_get_metrics(font, &rmetrics);
        PCUT_ASSERT_INT_EQUALS(metrics.ascent, rmetrics.ascent);
        PCUT_ASSERT_INT_EQUALS(metrics.descent, rmetrics.descent);
        PCUT_ASSERT_INT_EQUALS(metrics.leading, rmetrics.leading);

        glyph = gfx_font_first_glyph(font);
        PCUT_ASSERT_NOT_NULL(glyph);

        gfx_glyph_get_metrics(glyph, &rgmetrics);
        PCUT_ASSERT_INT_EQUALS(gmetrics.advance, rgmetrics.advance);

        pat = gfx_glyph_first_pattern(glyph);
        str = gfx_glyph_pattern_str(pat);
        PCUT_ASSERT_INT_EQUALS(0, str_cmp(test_glyph_pattern, str));

        rc = gfx_glyph_bmp_open(glyph, &bmp);
        PCUT_ASSERT_ERRNO_VAL(EOK, rc);

        pix = gfx_glyph_bmp_getpix(bmp, 0, 0);
        PCUT_ASSERT_INT_EQUALS(1, pix);
        pix = gfx_glyph_bmp_getpix(bmp, 1, 1);
        PCUT_ASSERT_INT_EQUALS(1, pix);
        pix = gfx_glyph_bmp_getpix(bmp, 1, 0);
        PCUT_ASSERT_INT_EQUALS(0, pix);
        pix = gfx_glyph_bmp_getpix(bmp, 0, 1);
        PCUT_ASSERT_INT_EQUALS(0, pix);

        gfx_glyph_bmp_close(bmp);

        gfx_typeface_destroy(tface);
        tface = NULL;

        rc = gfx_context_delete(gc);
        PCUT_ASSERT_ERRNO_VAL(EOK, rc);

        (void) remove(p);
}

static errno_t testgc_set_clip_rect(void *arg, gfx_rect_t *rect)
{
        return EOK;
}

static errno_t testgc_set_color(void *arg, gfx_color_t *color)
{
        return EOK;
}

static errno_t testgc_fill_rect(void *arg, gfx_rect_t *rect)
{
        return EOK;
}

static errno_t testgc_bitmap_create(void *arg, gfx_bitmap_params_t *params,
    gfx_bitmap_alloc_t *alloc, void **rbm)
{
        test_gc_t *tgc = (test_gc_t *) arg;
        testgc_bitmap_t *tbm;

        tbm = calloc(1, sizeof(testgc_bitmap_t));
        if (tbm == NULL)
                return ENOMEM;

        if (alloc == NULL) {
                tbm->alloc.pitch = (params->rect.p1.x - params->rect.p0.x) *
                    sizeof(uint32_t);
                tbm->alloc.off0 = 0;
                tbm->alloc.pixels = calloc(sizeof(uint32_t),
                    tbm->alloc.pitch * (params->rect.p1.y - params->rect.p0.y));
                tbm->myalloc = true;
                if (tbm->alloc.pixels == NULL) {
                        free(tbm);
                        return ENOMEM;
                }
        } else {
                tbm->alloc = *alloc;
        }

        tbm->tgc = tgc;
        tgc->bm_params = *params;
        tgc->bm_pixels = tbm->alloc.pixels;
        *rbm = (void *)tbm;
        return EOK;
}

static errno_t testgc_bitmap_destroy(void *bm)
{
        testgc_bitmap_t *tbm = (testgc_bitmap_t *)bm;
        if (tbm->myalloc)
                free(tbm->alloc.pixels);
        free(tbm);
        return EOK;
}

static errno_t testgc_bitmap_render(void *bm, gfx_rect_t *srect,
    gfx_coord2_t *offs)
{
        testgc_bitmap_t *tbm = (testgc_bitmap_t *)bm;
        tbm->tgc->bm_srect = *srect;
        tbm->tgc->bm_offs = *offs;
        return EOK;
}

static errno_t testgc_bitmap_get_alloc(void *bm, gfx_bitmap_alloc_t *alloc)
{
        testgc_bitmap_t *tbm = (testgc_bitmap_t *)bm;
        *alloc = tbm->alloc;
        return EOK;
}

PCUT_EXPORT(tpf);