| 1 | /*
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| 2 | * Copyright (c) 2020 Jiri Svoboda
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| 3 | * All rights reserved.
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| 4 | *
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| 5 | * Redistribution and use in source and binary forms, with or without
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| 6 | * modification, are permitted provided that the following conditions
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| 7 | * are met:
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| 8 | *
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| 9 | * - Redistributions of source code must retain the above copyright
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| 10 | * notice, this list of conditions and the following disclaimer.
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| 11 | * - Redistributions in binary form must reproduce the above copyright
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| 12 | * notice, this list of conditions and the following disclaimer in the
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| 13 | * documentation and/or other materials provided with the distribution.
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| 14 | * - The name of the author may not be used to endorse or promote products
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| 15 | * derived from this software without specific prior written permission.
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| 16 | *
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| 17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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| 18 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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| 19 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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| 20 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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| 21 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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| 22 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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| 23 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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| 24 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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| 25 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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| 26 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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| 27 | */
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| 28 |
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| 29 | /** @addtogroup libguigfx
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| 30 | * @{
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| 31 | */
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| 32 | /**
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| 33 | * @file GFX memory backend structure
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| 34 | *
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| 35 | */
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| 36 |
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| 37 | #ifndef _MEMGFX_PRIVATE_MEMGC_H
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| 38 | #define _MEMGFX_PRIVATE_MEMGC_H
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| 39 |
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| 40 | #include <gfx/bitmap.h>
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| 41 | #include <gfx/context.h>
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| 42 | #include <gfx/coord.h>
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| 43 | #include <io/pixel.h>
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| 44 |
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| 45 | /** Actual structure of memory GC. */
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| 46 | struct mem_gc {
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| 47 | /** Base graphic context */
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| 48 | gfx_context_t *gc;
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| 49 | /** Bounding rectangle */
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| 50 | gfx_rect_t rect;
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| 51 | /** Allocation info */
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| 52 | gfx_bitmap_alloc_t alloc;
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| 53 | /** Update callback */
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| 54 | mem_gc_update_cb_t update;
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| 55 | /** Argument to callback */
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| 56 | void *cb_arg;
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| 57 | /** Current drawing color */
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| 58 | pixel_t color;
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| 59 | };
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| 60 |
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| 61 | /** Bitmap in memory GC */
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| 62 | typedef struct {
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| 63 | /** Containing canvas GC */
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| 64 | struct mem_gc *mgc;
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| 65 | /** Allocation info */
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| 66 | gfx_bitmap_alloc_t alloc;
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| 67 | /** @c true if we allocated the bitmap, @c false if allocated by caller */
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| 68 | bool myalloc;
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| 69 | /** Rectangle covered by bitmap */
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| 70 | gfx_rect_t rect;
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| 71 | /** Bitmap flags */
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| 72 | gfx_bitmap_flags_t flags;
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| 73 | /** Key color */
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| 74 | pixel_t key_color;
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| 75 | } mem_gc_bitmap_t;
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| 76 |
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| 77 | #endif
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| 78 |
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| 79 | /** @}
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| 80 | */
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