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/**
* painter utils header
*
* Copyright 2015-2016 Jay Sorg <jay.sorg@gmail.com>
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#if !defined(__PAINTER_UTILS_H)
#define __PAINTER_UTILS_H
#define SPLIT_a8r8g8b8(_c, _a, _r, _g, _b) \
do { \
_a = ((_c) & 0xff000000) >> 24; \
_r = ((_c) & 0x00ff0000) >> 16; \
_g = ((_c) & 0x0000ff00) >> 8; \
_b = ((_c) & 0x000000ff) >> 0; \
} while (0)
#define SPLIT_a8b8g8r8(_c, _a, _r, _g, _b) \
do { \
_a = ((_c) & 0xff000000) >> 24; \
_b = ((_c) & 0x00ff0000) >> 16; \
_g = ((_c) & 0x0000ff00) >> 8; \
_r = ((_c) & 0x000000ff) >> 0; \
} while (0)
#define SPLIT_a1r5g5b5(_c, _a, _r, _g, _b) \
do { \
_a = (((_c) >> 15) & 1) * 0xff; \
_r = (((_c) >> 7) & 0xf8) | (((_c) >> 12) & 0x7); \
_g = (((_c) >> 2) & 0xf8) | (((_c) >> 8) & 0x7); \
_b = (((_c) << 3) & 0xf8) | (((_c) >> 2) & 0x7); \
} while (0)
#define SPLIT_r5g6b5(_c, _a, _r, _g, _b) \
do { \
_a = 0xff; \
_r = (((_c) >> 8) & 0xf8) | (((_c) >> 13) & 0x7); \
_g = (((_c) >> 3) & 0xfc) | (((_c) >> 9) & 0x3); \
_b = (((_c) << 3) & 0xf8) | (((_c) >> 2) & 0x7); \
} while (0)
#define SPLIT_r3g3b2(_c, _a, _r, _g, _b) \
do { \
_a = 0xff; \
_r = 0; \
_g = 0; \
_b = 0; \
} while (0)
#define MAKE_a1r5g5b5(_c, _a, _r, _g, _b) \
do { \
_c = (((_a) & 0xff) >> 7) << 15 | \
(((_r) & 0xff) >> 3) << 10 | \
(((_g) & 0xff) >> 3) << 5 | \
(((_b) & 0xff) >> 3) << 0; \
} while (0)
#define MAKE_r5g6b5(_c, _a, _r, _g, _b) \
do { \
_c = \
(((_r) & 0xff) >> 3) << 11 | \
(((_g) & 0xff) >> 2) << 5 | \
(((_b) & 0xff) >> 3) << 0; \
} while (0)
#define MAKE_a8r8g8b8(_c, _a, _r, _g, _b) \
do { \
_c = ((_a) & 0xff) << 24 | \
((_r) & 0xff) << 16 | \
((_g) & 0xff) << 8 | \
((_b) & 0xff) << 0; \
} while (0)
#define MAKE_a8b8g8r8(_c, _a, _r, _g, _b) \
do { \
_c = ((_a) & 0xff) << 24 | \
((_b) & 0xff) << 16 | \
((_g) & 0xff) << 8 | \
((_r) & 0xff) << 0; \
} while (0)
struct painter_rect
{
short x1;
short y1;
short x2;
short y2;
};
struct painter
{
int rop;
int fgcolor;
int bgcolor;
int pattern_mode;
int clip_valid;
struct painter_rect clip;
int origin_x;
int origin_y;
int palette[256];
};
int
painter_rop(int rop, int src, int dst);
int
painter_get_pixel(struct painter *painter, struct painter_bitmap *bitmap,
int x, int y);
int
painter_set_pixel(struct painter *painter, struct painter_bitmap *dst,
int x, int y, int pixel, int pixel_format);
int
painter_warp_coords(struct painter *painter,
int *x, int *y, int *cx, int *cy,
int *srcx, int *srcy);
char *
bitmap_get_ptr(struct painter_bitmap *bitmap, int x, int y);
int
bitmap_get_pixel(struct painter_bitmap *bitmap, int x, int y);
int
bitmap_set_pixel(struct painter_bitmap *bitmap, int x, int y, int pixel);
#endif
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