[1fa6292] | 1 | /*
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| 2 | * Copyright (c) 2022 Jiri Svoboda
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| 3 | * Copyright (c) 2025 Jiří Zárevúcky
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| 4 | * All rights reserved.
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| 5 | *
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| 6 | * Redistribution and use in source and binary forms, with or without
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| 7 | * modification, are permitted provided that the following conditions
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| 8 | * are met:
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| 9 | *
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| 10 | * - Redistributions of source code must retain the above copyright
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| 11 | * notice, this list of conditions and the following disclaimer.
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| 12 | * - Redistributions in binary form must reproduce the above copyright
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| 13 | * notice, this list of conditions and the following disclaimer in the
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| 14 | * documentation and/or other materials provided with the distribution.
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| 15 | * - The name of the author may not be used to endorse or promote products
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| 16 | * derived from this software without specific prior written permission.
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| 17 | *
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| 18 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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| 19 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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| 20 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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| 21 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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| 22 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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| 23 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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| 24 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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| 25 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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| 26 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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| 27 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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| 28 | */
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| 29 |
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| 30 | typedef struct {
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| 31 | gfx_bitmap_params_t bm_params;
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| 32 | void *bm_pixels;
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| 33 | gfx_rect_t bm_srect;
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| 34 | gfx_coord2_t bm_offs;
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| 35 | } test_gc_t;
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| 36 |
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| 37 | typedef struct {
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| 38 | test_gc_t *tgc;
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| 39 | gfx_bitmap_alloc_t alloc;
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| 40 | bool myalloc;
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| 41 | } testgc_bitmap_t;
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| 42 |
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| 43 | static errno_t testgc_set_clip_rect(void *arg, gfx_rect_t *rect)
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| 44 | {
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| 45 | return EOK;
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| 46 | }
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| 47 |
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| 48 | static errno_t testgc_set_color(void *arg, gfx_color_t *color)
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| 49 | {
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| 50 | return EOK;
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| 51 | }
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| 52 |
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| 53 | static errno_t testgc_fill_rect(void *arg, gfx_rect_t *rect)
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| 54 | {
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| 55 | return EOK;
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| 56 | }
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| 57 |
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| 58 | static errno_t testgc_bitmap_create(void *arg, gfx_bitmap_params_t *params,
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| 59 | gfx_bitmap_alloc_t *alloc, void **rbm)
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| 60 | {
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| 61 | test_gc_t *tgc = (test_gc_t *) arg;
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| 62 | testgc_bitmap_t *tbm;
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| 63 |
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| 64 | tbm = calloc(1, sizeof(testgc_bitmap_t));
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| 65 | if (tbm == NULL)
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| 66 | return ENOMEM;
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| 67 |
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| 68 | if (alloc == NULL) {
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| 69 | tbm->alloc.pitch = (params->rect.p1.x - params->rect.p0.x) *
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| 70 | sizeof(uint32_t);
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| 71 | tbm->alloc.off0 = 0;
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| 72 | tbm->alloc.pixels = calloc(
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| 73 | tbm->alloc.pitch * (params->rect.p1.y - params->rect.p0.y),
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| 74 | sizeof(uint32_t));
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| 75 | tbm->myalloc = true;
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| 76 | if (tbm->alloc.pixels == NULL) {
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| 77 | free(tbm);
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| 78 | return ENOMEM;
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| 79 | }
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| 80 | } else {
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| 81 | tbm->alloc = *alloc;
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| 82 | }
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| 83 |
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| 84 | tbm->tgc = tgc;
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| 85 | tgc->bm_params = *params;
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| 86 | tgc->bm_pixels = tbm->alloc.pixels;
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| 87 | *rbm = (void *)tbm;
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| 88 | return EOK;
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| 89 | }
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| 90 |
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| 91 | static errno_t testgc_bitmap_destroy(void *bm)
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| 92 | {
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| 93 | testgc_bitmap_t *tbm = (testgc_bitmap_t *)bm;
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| 94 | if (tbm->myalloc)
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| 95 | free(tbm->alloc.pixels);
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| 96 | free(tbm);
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| 97 | return EOK;
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| 98 | }
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| 99 |
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| 100 | static errno_t testgc_bitmap_render(void *bm, gfx_rect_t *srect,
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| 101 | gfx_coord2_t *offs)
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| 102 | {
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| 103 | testgc_bitmap_t *tbm = (testgc_bitmap_t *)bm;
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| 104 | tbm->tgc->bm_srect = *srect;
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| 105 | tbm->tgc->bm_offs = *offs;
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| 106 | return EOK;
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| 107 | }
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| 108 |
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| 109 | static errno_t testgc_bitmap_get_alloc(void *bm, gfx_bitmap_alloc_t *alloc)
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| 110 | {
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| 111 | testgc_bitmap_t *tbm = (testgc_bitmap_t *)bm;
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| 112 | *alloc = tbm->alloc;
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| 113 | return EOK;
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| 114 | }
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| 115 |
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| 116 | static gfx_context_ops_t test_ops = {
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| 117 | .set_clip_rect = testgc_set_clip_rect,
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| 118 | .set_color = testgc_set_color,
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| 119 | .fill_rect = testgc_fill_rect,
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| 120 | .bitmap_create = testgc_bitmap_create,
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| 121 | .bitmap_destroy = testgc_bitmap_destroy,
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| 122 | .bitmap_render = testgc_bitmap_render,
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| 123 | .bitmap_get_alloc = testgc_bitmap_get_alloc
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| 124 | };
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