HelenOS sources

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

DEFINITIONS

1. PCUT_TEST
2. PCUT_TEST
3. PCUT_TEST
4. PCUT_TEST
5. PCUT_TEST
6. PCUT_TEST
7. PCUT_TEST
8. PCUT_TEST
9. PCUT_TEST
10. testgc_set_clip_rect
11. testgc_set_color
12. testgc_fill_rect
13. testgc_bitmap_create
14. testgc_bitmap_destroy
15. testgc_bitmap_render
16. 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/bitmap.h>
#include <gfx/context.h>
#include <gfx/font.h>
#include <gfx/glyph.h>
#include <gfx/glyph_bmp.h>
#include <gfx/typeface.h>
#include <io/pixelmap.h>
#include <pcut/pcut.h>
#include <stdbool.h>
#include <str.h>
#include "../private/glyph.h"

PCUT_INIT;

PCUT_TEST_SUITE(glyph);

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;

/** Test creating and destroying glyph */
PCUT_TEST(create_destroy)
{
        gfx_font_props_t fprops;
        gfx_font_metrics_t fmetrics;
        gfx_typeface_t *tface;
        gfx_font_t *font;
        gfx_glyph_metrics_t gmetrics;
        gfx_glyph_t *glyph;
        gfx_context_t *gc;
        test_gc_t tgc;
        errno_t rc;

        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(&fprops);
        gfx_font_metrics_init(&fmetrics);
        rc = gfx_font_create(tface, &fprops, &fmetrics, &font);
        PCUT_ASSERT_ERRNO_VAL(EOK, rc);

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

        gfx_glyph_destroy(glyph);

        gfx_font_close(font);
        gfx_typeface_destroy(tface);
        rc = gfx_context_delete(gc);
        PCUT_ASSERT_ERRNO_VAL(EOK, rc);
}

/** Test gfx_glyph_get_metrics() */
PCUT_TEST(get_metrics)
{
        gfx_font_props_t fprops;
        gfx_font_metrics_t fmetrics;
        gfx_typeface_t *tface;
        gfx_font_t *font;
        gfx_glyph_metrics_t gmetrics;
        gfx_glyph_t *glyph;
        gfx_glyph_metrics_t rmetrics;
        gfx_context_t *gc;
        test_gc_t tgc;
        errno_t rc;

        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(&fprops);
        gfx_font_metrics_init(&fmetrics);
        rc = gfx_font_create(tface, &fprops, &fmetrics, &font);
        PCUT_ASSERT_ERRNO_VAL(EOK, rc);

        PCUT_ASSERT_ERRNO_VAL(EOK, rc);

        gfx_glyph_metrics_init(&gmetrics);
        gmetrics.advance = 42;

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

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

        gfx_glyph_destroy(glyph);

        gfx_font_close(font);
        gfx_typeface_destroy(tface);
        rc = gfx_context_delete(gc);
        PCUT_ASSERT_ERRNO_VAL(EOK, rc);
}

/** Test gfx_glyph_set_metrics() */
PCUT_TEST(set_metrics)
{
        gfx_font_props_t fprops;
        gfx_font_metrics_t fmetrics;
        gfx_typeface_t *tface;
        gfx_font_t *font;
        gfx_glyph_metrics_t gmetrics1;
        gfx_glyph_metrics_t gmetrics2;
        gfx_glyph_t *glyph;
        gfx_glyph_metrics_t rmetrics;
        gfx_context_t *gc;
        test_gc_t tgc;
        errno_t rc;

        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(&fprops);
        gfx_font_metrics_init(&fmetrics);
        rc = gfx_font_create(tface, &fprops, &fmetrics, &font);
        PCUT_ASSERT_ERRNO_VAL(EOK, rc);

        gfx_glyph_metrics_init(&gmetrics1);
        gmetrics1.advance = 1;

        rc = gfx_glyph_create(font, &gmetrics1, &glyph);
        PCUT_ASSERT_ERRNO_VAL(EOK, rc);

        gfx_glyph_metrics_init(&gmetrics2);
        gmetrics2.advance = 2;

        gfx_glyph_set_metrics(glyph, &gmetrics2);

        gfx_glyph_get_metrics(glyph, &rmetrics);
        PCUT_ASSERT_INT_EQUALS(gmetrics2.advance, rmetrics.advance);

        gfx_glyph_destroy(glyph);

        gfx_font_close(font);
        gfx_typeface_destroy(tface);
        rc = gfx_context_delete(gc);
        PCUT_ASSERT_ERRNO_VAL(EOK, rc);
}

/** Test gfx_glyph_set_pattern() */
PCUT_TEST(set_pattern)
{
        gfx_font_props_t fprops;
        gfx_font_metrics_t fmetrics;
        gfx_typeface_t *tface;
        gfx_font_t *font;
        gfx_glyph_metrics_t gmetrics;
        gfx_glyph_t *glyph;
        gfx_context_t *gc;
        test_gc_t tgc;
        errno_t rc;

        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(&fprops);
        gfx_font_metrics_init(&fmetrics);
        rc = gfx_font_create(tface, &fprops, &fmetrics, &font);
        PCUT_ASSERT_ERRNO_VAL(EOK, rc);

        gfx_glyph_metrics_init(&gmetrics);
        gmetrics.advance = 1;

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

        PCUT_ASSERT_NULL(gfx_glyph_first_pattern(glyph));

        /* Set a pattern */
        rc = gfx_glyph_set_pattern(glyph, "A");
        PCUT_ASSERT_ERRNO_VAL(EOK, rc);
        PCUT_ASSERT_NOT_NULL(gfx_glyph_first_pattern(glyph));

        /* Setting the same pattern again should be OK */
        rc = gfx_glyph_set_pattern(glyph, "A");
        PCUT_ASSERT_ERRNO_VAL(EOK, rc);
        PCUT_ASSERT_NOT_NULL(gfx_glyph_first_pattern(glyph));

        gfx_glyph_destroy(glyph);

        gfx_font_close(font);
        gfx_typeface_destroy(tface);
        rc = gfx_context_delete(gc);
        PCUT_ASSERT_ERRNO_VAL(EOK, rc);
}

/** Test gfx_glyph_clear_pattern() */
PCUT_TEST(clear_pattern)
{
        gfx_font_props_t fprops;
        gfx_font_metrics_t fmetrics;
        gfx_typeface_t *tface;
        gfx_font_t *font;
        gfx_glyph_metrics_t gmetrics;
        gfx_glyph_t *glyph;
        gfx_context_t *gc;
        test_gc_t tgc;
        errno_t rc;

        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(&fprops);
        gfx_font_metrics_init(&fmetrics);
        rc = gfx_font_create(tface, &fprops, &fmetrics, &font);
        PCUT_ASSERT_ERRNO_VAL(EOK, rc);

        gfx_glyph_metrics_init(&gmetrics);
        gmetrics.advance = 1;

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

        PCUT_ASSERT_NULL(gfx_glyph_first_pattern(glyph));

        /* Set a pattern */
        rc = gfx_glyph_set_pattern(glyph, "A");
        PCUT_ASSERT_ERRNO_VAL(EOK, rc);
        PCUT_ASSERT_NOT_NULL(gfx_glyph_first_pattern(glyph));

        /* Now clear a different pattern - should be OK */
        gfx_glyph_clear_pattern(glyph, "AA");
        PCUT_ASSERT_NOT_NULL(gfx_glyph_first_pattern(glyph));

        /* Now clear the pattern which has been set */
        gfx_glyph_clear_pattern(glyph, "A");
        PCUT_ASSERT_NULL(gfx_glyph_first_pattern(glyph));

        gfx_glyph_destroy(glyph);

        gfx_font_close(font);
        gfx_typeface_destroy(tface);
        rc = gfx_context_delete(gc);
        PCUT_ASSERT_ERRNO_VAL(EOK, rc);
}

/** Test gfx_glyph_matches() */
PCUT_TEST(matches)
{
        gfx_font_props_t fprops;
        gfx_font_metrics_t fmetrics;
        gfx_typeface_t *tface;
        gfx_font_t *font;
        gfx_glyph_metrics_t gmetrics;
        gfx_glyph_t *glyph;
        gfx_context_t *gc;
        test_gc_t tgc;
        bool match;
        size_t msize;
        errno_t rc;

        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(&fprops);
        gfx_font_metrics_init(&fmetrics);
        rc = gfx_font_create(tface, &fprops, &fmetrics, &font);
        PCUT_ASSERT_ERRNO_VAL(EOK, rc);

        gfx_glyph_metrics_init(&gmetrics);
        gmetrics.advance = 1;

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

        PCUT_ASSERT_NULL(gfx_glyph_first_pattern(glyph));

        /* Set a pattern */
        rc = gfx_glyph_set_pattern(glyph, "AB");
        PCUT_ASSERT_ERRNO_VAL(EOK, rc);
        PCUT_ASSERT_NOT_NULL(gfx_glyph_first_pattern(glyph));

        match = gfx_glyph_matches(glyph, "A", &msize);
        PCUT_ASSERT_FALSE(match);

        match = gfx_glyph_matches(glyph, "AB", &msize);
        PCUT_ASSERT_TRUE(match);
        PCUT_ASSERT_INT_EQUALS(2, msize);

        match = gfx_glyph_matches(glyph, "ABC", &msize);
        PCUT_ASSERT_TRUE(match);
        PCUT_ASSERT_INT_EQUALS(2, msize);

        match = gfx_glyph_matches(glyph, "BAB", &msize);
        PCUT_ASSERT_FALSE(match);

        gfx_glyph_destroy(glyph);

        gfx_font_close(font);
        gfx_typeface_destroy(tface);
        rc = gfx_context_delete(gc);
        PCUT_ASSERT_ERRNO_VAL(EOK, rc);
}

/** Test gfx_glyph_first_pattern(), gfx_glyph_next_pattern() */
PCUT_TEST(first_next_pattern)
{
        gfx_font_props_t fprops;
        gfx_font_metrics_t fmetrics;
        gfx_typeface_t *tface;
        gfx_font_t *font;
        gfx_glyph_metrics_t gmetrics;
        gfx_glyph_t *glyph;
        gfx_context_t *gc;
        test_gc_t tgc;
        gfx_glyph_pattern_t *pat;
        errno_t rc;

        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(&fprops);
        gfx_font_metrics_init(&fmetrics);
        rc = gfx_font_create(tface, &fprops, &fmetrics, &font);
        PCUT_ASSERT_ERRNO_VAL(EOK, rc);

        gfx_glyph_metrics_init(&gmetrics);
        gmetrics.advance = 1;

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

        PCUT_ASSERT_NULL(gfx_glyph_first_pattern(glyph));

        /* Set a pattern */
        rc = gfx_glyph_set_pattern(glyph, "A");
        PCUT_ASSERT_ERRNO_VAL(EOK, rc);
        PCUT_ASSERT_NOT_NULL(gfx_glyph_first_pattern(glyph));

        pat = gfx_glyph_first_pattern(glyph);
        PCUT_ASSERT_NOT_NULL(pat);

        pat = gfx_glyph_next_pattern(pat);
        PCUT_ASSERT_NULL(pat);

        gfx_glyph_destroy(glyph);

        gfx_font_close(font);
        gfx_typeface_destroy(tface);
        rc = gfx_context_delete(gc);
        PCUT_ASSERT_ERRNO_VAL(EOK, rc);
}

/** Test gfx_glyph_pattern_str() */
PCUT_TEST(pattern_str)
{
        gfx_font_props_t fprops;
        gfx_font_metrics_t fmetrics;
        gfx_typeface_t *tface;
        gfx_font_t *font;
        gfx_glyph_metrics_t gmetrics;
        gfx_glyph_t *glyph;
        gfx_context_t *gc;
        test_gc_t tgc;
        gfx_glyph_pattern_t *pat;
        const char *pstr;
        errno_t rc;

        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(&fprops);
        gfx_font_metrics_init(&fmetrics);
        rc = gfx_font_create(tface, &fprops, &fmetrics, &font);
        PCUT_ASSERT_ERRNO_VAL(EOK, rc);

        gfx_glyph_metrics_init(&gmetrics);
        gmetrics.advance = 1;

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

        PCUT_ASSERT_NULL(gfx_glyph_first_pattern(glyph));

        /* Set a pattern */
        rc = gfx_glyph_set_pattern(glyph, "A");
        PCUT_ASSERT_ERRNO_VAL(EOK, rc);
        PCUT_ASSERT_NOT_NULL(gfx_glyph_first_pattern(glyph));

        pat = gfx_glyph_first_pattern(glyph);
        PCUT_ASSERT_NOT_NULL(pat);

        pstr = gfx_glyph_pattern_str(pat);
        PCUT_ASSERT_INT_EQUALS(0, str_cmp("A", pstr));

        gfx_glyph_destroy(glyph);

        gfx_font_close(font);
        gfx_typeface_destroy(tface);
        rc = gfx_context_delete(gc);
        PCUT_ASSERT_ERRNO_VAL(EOK, rc);
}

/** Test gfx_glyph_transfer() */
PCUT_TEST(transfer)
{
        gfx_font_props_t fprops;
        gfx_font_metrics_t fmetrics;
        gfx_typeface_t *tface;
        gfx_font_t *font;
        gfx_glyph_metrics_t gmetrics;
        gfx_glyph_t *glyph;
        gfx_context_t *gc;
        gfx_bitmap_t *bitmap;
        gfx_bitmap_params_t params;
        gfx_bitmap_alloc_t alloc;
        gfx_glyph_bmp_t *bmp;
        pixelmap_t pmap;
        pixel_t pixel;
        test_gc_t tgc;
        errno_t rc;

        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(&fprops);
        gfx_font_metrics_init(&fmetrics);
        rc = gfx_font_create(tface, &fprops, &fmetrics, &font);
        PCUT_ASSERT_ERRNO_VAL(EOK, rc);

        gfx_glyph_metrics_init(&gmetrics);
        gmetrics.advance = 1;

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

        /*
         * We need to fill some pixels of the glyph.
         * We'll use the glyph bitmap for that.
         * That means this test won't pass unless glyph
         * bitmap works.
         */

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

        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);

        /* Now create a new bitmap */

        gfx_bitmap_params_init(&params);
        params.rect.p0.x = 0;
        params.rect.p0.y = 0;
        params.rect.p1.x = 10;
        params.rect.p1.y = 10;
        rc = gfx_bitmap_create(gc, &params, NULL, &bitmap);
        PCUT_ASSERT_ERRNO_VAL(EOK, rc);

        rc = gfx_bitmap_get_alloc(bitmap, &alloc);
        PCUT_ASSERT_ERRNO_VAL(EOK, rc);

        /* Transfer the glyph to new bitmap */
        rc = gfx_glyph_transfer(glyph, 0, bitmap, &params.rect);
        PCUT_ASSERT_ERRNO_VAL(EOK, rc);

        /* Now let's read pixels from the new bitmap */
        pmap.width = params.rect.p1.x;
        pmap.height = params.rect.p1.y;
        pmap.data = alloc.pixels;

        pixel = pixelmap_get_pixel(&pmap, 0, 0);
        PCUT_ASSERT_INT_EQUALS(PIXEL(255, 255, 255, 255), pixel);

        pixel = pixelmap_get_pixel(&pmap, 1, 1);
        PCUT_ASSERT_INT_EQUALS(PIXEL(255, 255, 255, 255), pixel);

        pixel = pixelmap_get_pixel(&pmap, 1, 0);
        PCUT_ASSERT_INT_EQUALS(PIXEL(0, 0, 0, 0), pixel);

        pixel = pixelmap_get_pixel(&pmap, 0, 1);
        PCUT_ASSERT_INT_EQUALS(PIXEL(0, 0, 0, 0), pixel);

        gfx_glyph_destroy(glyph);

        gfx_font_close(font);
        gfx_typeface_destroy(tface);
        rc = gfx_context_delete(gc);
        PCUT_ASSERT_ERRNO_VAL(EOK, rc);
}

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(glyph);