[qemu.git] / hw / blizzard_template.h

/*
 * QEMU Epson S1D13744/S1D13745 templates
 *
 * Copyright (C) 2008 Nokia Corporation
 * Written by Andrzej Zaborowski <andrew@openedhand.com>
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License as
 * published by the Free Software Foundation; either version 2 or
 * (at your option) version 3 of the License.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License along
 * with this program; if not, see <http://www.gnu.org/licenses/>.
 */

#define SKIP_PIXEL(to)		to += deststep
#if DEPTH == 8
# define PIXEL_TYPE		uint8_t
# define COPY_PIXEL(to, from)	*to = from; SKIP_PIXEL(to)
# define COPY_PIXEL1(to, from)	*to ++ = from
#elif DEPTH == 15 || DEPTH == 16
# define PIXEL_TYPE		uint16_t
# define COPY_PIXEL(to, from)	*to = from; SKIP_PIXEL(to)
# define COPY_PIXEL1(to, from)	*to ++ = from
#elif DEPTH == 24
# define PIXEL_TYPE		uint8_t
# define COPY_PIXEL(to, from)	\
    to[0] = from; to[1] = (from) >> 8; to[2] = (from) >> 16; SKIP_PIXEL(to)
# define COPY_PIXEL1(to, from)	\
    *to ++ = from; *to ++ = (from) >> 8; *to ++ = (from) >> 16
#elif DEPTH == 32
# define PIXEL_TYPE		uint32_t
# define COPY_PIXEL(to, from)	*to = from; SKIP_PIXEL(to)
# define COPY_PIXEL1(to, from)	*to ++ = from
#else
# error unknown bit depth
#endif

#ifdef HOST_WORDS_BIGENDIAN
# define SWAP_WORDS	1
#endif

static void glue(blizzard_draw_line16_, DEPTH)(PIXEL_TYPE *dest,
                const uint16_t *src, unsigned int width)
{
#if !defined(SWAP_WORDS) && DEPTH == 16
    memcpy(dest, src, width);
#else
    uint16_t data;
    unsigned int r, g, b;
    const uint16_t *end = (const void *) src + width;
    while (src < end) {
        data = lduw_raw(src ++);
        b = (data & 0x1f) << 3;
        data >>= 5;
        g = (data & 0x3f) << 2;
        data >>= 6;
        r = (data & 0x1f) << 3;
        data >>= 5;
        COPY_PIXEL1(dest, glue(rgb_to_pixel, DEPTH)(r, g, b));
    }
#endif
}

static void glue(blizzard_draw_line24mode1_, DEPTH)(PIXEL_TYPE *dest,
                const uint8_t *src, unsigned int width)
{
    /* TODO: check if SDL 24-bit planes are not in the same format and
     * if so, use memcpy */
    unsigned int r[2], g[2], b[2];
    const uint8_t *end = src + width;
    while (src < end) {
        g[0] = *src ++;
        r[0] = *src ++;
        r[1] = *src ++;
        b[0] = *src ++;
        COPY_PIXEL1(dest, glue(rgb_to_pixel, DEPTH)(r[0], g[0], b[0]));
        b[1] = *src ++;
        g[1] = *src ++;
        COPY_PIXEL1(dest, glue(rgb_to_pixel, DEPTH)(r[1], g[1], b[1]));
    }
}

static void glue(blizzard_draw_line24mode2_, DEPTH)(PIXEL_TYPE *dest,
                const uint8_t *src, unsigned int width)
{
    unsigned int r, g, b;
    const uint8_t *end = src + width;
    while (src < end) {
        r = *src ++;
        src ++;
        b = *src ++;
        g = *src ++;
        COPY_PIXEL1(dest, glue(rgb_to_pixel, DEPTH)(r, g, b));
    }
}

/* No rotation */
static blizzard_fn_t glue(blizzard_draw_fn_, DEPTH)[0x10] = {
    NULL,
    /* RGB 5:6:5*/
    (blizzard_fn_t) glue(blizzard_draw_line16_, DEPTH),
    /* RGB 6:6:6 mode 1 */
    (blizzard_fn_t) glue(blizzard_draw_line24mode1_, DEPTH),
    /* RGB 8:8:8 mode 1 */
    (blizzard_fn_t) glue(blizzard_draw_line24mode1_, DEPTH),
    NULL, NULL,
    /* RGB 6:6:6 mode 2 */
    (blizzard_fn_t) glue(blizzard_draw_line24mode2_, DEPTH),
    /* RGB 8:8:8 mode 2 */
    (blizzard_fn_t) glue(blizzard_draw_line24mode2_, DEPTH),
    /* YUV 4:2:2 */
    NULL,
    /* YUV 4:2:0 */
    NULL,
    NULL, NULL, NULL, NULL, NULL, NULL,
};

/* 90deg, 180deg and 270deg rotation */
static blizzard_fn_t glue(blizzard_draw_fn_r_, DEPTH)[0x10] = {
    /* TODO */
    [0 ... 0xf] = NULL,
};

#undef DEPTH
#undef SKIP_PIXEL
#undef COPY_PIXEL
#undef COPY_PIXEL1
#undef PIXEL_TYPE

#undef SWAP_WORDS
Commit	Line	Data
7e7c5e4c AZ	1	/*
	2	* QEMU Epson S1D13744/S1D13745 templates
	3	*
	4	* Copyright (C) 2008 Nokia Corporation
	5	* Written by Andrzej Zaborowski <andrew@openedhand.com>
	6	*
	7	* This program is free software; you can redistribute it and/or
	8	* modify it under the terms of the GNU General Public License as
	9	* published by the Free Software Foundation; either version 2 or
	10	* (at your option) version 3 of the License.
	11	*
	12	* This program is distributed in the hope that it will be useful,
	13	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	14	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	15	* GNU General Public License for more details.
	16	*
fad6cb1a	17	* You should have received a copy of the GNU General Public License along
8167ee88	18	* with this program; if not, see <http://www.gnu.org/licenses/>.
7e7c5e4c AZ	19	*/
	20
	21	#define SKIP_PIXEL(to) to += deststep
	22	#if DEPTH == 8
	23	# define PIXEL_TYPE uint8_t
	24	# define COPY_PIXEL(to, from) *to = from; SKIP_PIXEL(to)
	25	# define COPY_PIXEL1(to, from) *to ++ = from
	26	#elif DEPTH == 15 \|\| DEPTH == 16
	27	# define PIXEL_TYPE uint16_t
	28	# define COPY_PIXEL(to, from) *to = from; SKIP_PIXEL(to)
	29	# define COPY_PIXEL1(to, from) *to ++ = from
	30	#elif DEPTH == 24
	31	# define PIXEL_TYPE uint8_t
	32	# define COPY_PIXEL(to, from) \
	33	to[0] = from; to[1] = (from) >> 8; to[2] = (from) >> 16; SKIP_PIXEL(to)
	34	# define COPY_PIXEL1(to, from) \
	35	to ++ = from; to ++ = (from) >> 8; *to ++ = (from) >> 16
	36	#elif DEPTH == 32
	37	# define PIXEL_TYPE uint32_t
	38	# define COPY_PIXEL(to, from) *to = from; SKIP_PIXEL(to)
	39	# define COPY_PIXEL1(to, from) *to ++ = from
	40	#else
	41	# error unknown bit depth
	42	#endif
	43
e2542fe2	44	#ifdef HOST_WORDS_BIGENDIAN
7e7c5e4c AZ	45	# define SWAP_WORDS 1
	46	#endif
	47
	48	static void glue(blizzard_draw_line16_, DEPTH)(PIXEL_TYPE *dest,
	49	const uint16_t *src, unsigned int width)
	50	{
	51	#if !defined(SWAP_WORDS) && DEPTH == 16
b21e9863	52	memcpy(dest, src, width);
7e7c5e4c AZ	53	#else
	54	uint16_t data;
	55	unsigned int r, g, b;
b21e9863	56	const uint16_t end = (const void ) src + width;
7e7c5e4c AZ	57	while (src < end) {
	58	data = lduw_raw(src ++);
	59	b = (data & 0x1f) << 3;
	60	data >>= 5;
	61	g = (data & 0x3f) << 2;
	62	data >>= 6;
	63	r = (data & 0x1f) << 3;
	64	data >>= 5;
	65	COPY_PIXEL1(dest, glue(rgb_to_pixel, DEPTH)(r, g, b));
	66	}
	67	#endif
	68	}
	69
	70	static void glue(blizzard_draw_line24mode1_, DEPTH)(PIXEL_TYPE *dest,
	71	const uint8_t *src, unsigned int width)
	72	{
	73	/* TODO: check if SDL 24-bit planes are not in the same format and
	74	* if so, use memcpy */
	75	unsigned int r[2], g[2], b[2];
	76	const uint8_t *end = src + width;
	77	while (src < end) {
	78	g[0] = *src ++;
	79	r[0] = *src ++;
	80	r[1] = *src ++;
	81	b[0] = *src ++;
	82	COPY_PIXEL1(dest, glue(rgb_to_pixel, DEPTH)(r[0], g[0], b[0]));
	83	b[1] = *src ++;
	84	g[1] = *src ++;
	85	COPY_PIXEL1(dest, glue(rgb_to_pixel, DEPTH)(r[1], g[1], b[1]));
	86	}
	87	}
	88
	89	static void glue(blizzard_draw_line24mode2_, DEPTH)(PIXEL_TYPE *dest,
	90	const uint8_t *src, unsigned int width)
	91	{
	92	unsigned int r, g, b;
	93	const uint8_t *end = src + width;
	94	while (src < end) {
	95	r = *src ++;
	96	src ++;
	97	b = *src ++;
	98	g = *src ++;
	99	COPY_PIXEL1(dest, glue(rgb_to_pixel, DEPTH)(r, g, b));
	100	}
	101	}
	102
	103	/* No rotation */
	104	static blizzard_fn_t glue(blizzard_draw_fn_, DEPTH)[0x10] = {
	105	NULL,
	106	/* RGB 5:6:5*/
	107	(blizzard_fn_t) glue(blizzard_draw_line16_, DEPTH),
	108	/* RGB 6:6:6 mode 1 */
	109	(blizzard_fn_t) glue(blizzard_draw_line24mode1_, DEPTH),
	110	/* RGB 8:8:8 mode 1 */
	111	(blizzard_fn_t) glue(blizzard_draw_line24mode1_, DEPTH),
	112	NULL, NULL,
	113	/* RGB 6:6:6 mode 2 */
	114	(blizzard_fn_t) glue(blizzard_draw_line24mode2_, DEPTH),
	115	/* RGB 8:8:8 mode 2 */
	116	(blizzard_fn_t) glue(blizzard_draw_line24mode2_, DEPTH),
	117	/* YUV 4:2:2 */
	118	NULL,
	119	/* YUV 4:2:0 */
	120	NULL,
121	NULL, NULL, NULL, NULL, NULL, NULL,
122	};
123
124	/* 90deg, 180deg and 270deg rotation */
125	static blizzard_fn_t glue(blizzard_draw_fn_r_, DEPTH)[0x10] = {
126	/* TODO */
127	[0 ... 0xf] = NULL,
128	};
129
130	#undef DEPTH
131	#undef SKIP_PIXEL
132	#undef COPY_PIXEL
133	#undef COPY_PIXEL1
134	#undef PIXEL_TYPE
135
136	#undef SWAP_WORDS