[mirror_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, write to the Free Software Foundation, Inc.,
 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
 */

#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 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 AJ	17	* You should have received a copy of the GNU General Public License along
	18	* with this program; if not, write to the Free Software Foundation, Inc.,
	19	* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
7e7c5e4c AZ	20	*/
	21
	22	#define SKIP_PIXEL(to) to += deststep
	23	#if DEPTH == 8
	24	# define PIXEL_TYPE uint8_t
	25	# define COPY_PIXEL(to, from) *to = from; SKIP_PIXEL(to)
	26	# define COPY_PIXEL1(to, from) *to ++ = from
	27	#elif DEPTH == 15 \|\| DEPTH == 16
	28	# define PIXEL_TYPE uint16_t
	29	# define COPY_PIXEL(to, from) *to = from; SKIP_PIXEL(to)
	30	# define COPY_PIXEL1(to, from) *to ++ = from
	31	#elif DEPTH == 24
	32	# define PIXEL_TYPE uint8_t
	33	# define COPY_PIXEL(to, from) \
	34	to[0] = from; to[1] = (from) >> 8; to[2] = (from) >> 16; SKIP_PIXEL(to)
	35	# define COPY_PIXEL1(to, from) \
	36	to ++ = from; to ++ = (from) >> 8; *to ++ = (from) >> 16
	37	#elif DEPTH == 32
	38	# define PIXEL_TYPE uint32_t
	39	# define COPY_PIXEL(to, from) *to = from; SKIP_PIXEL(to)
	40	# define COPY_PIXEL1(to, from) *to ++ = from
	41	#else
	42	# error unknown bit depth
	43	#endif
	44
	45	#ifdef WORDS_BIGENDIAN
	46	# define SWAP_WORDS 1
	47	#endif
	48
	49	static void glue(blizzard_draw_line16_, DEPTH)(PIXEL_TYPE *dest,
	50	const uint16_t *src, unsigned int width)
	51	{
	52	#if !defined(SWAP_WORDS) && DEPTH == 16
b21e9863	53	memcpy(dest, src, width);
7e7c5e4c AZ	54	#else
	55	uint16_t data;
	56	unsigned int r, g, b;
b21e9863	57	const uint16_t end = (const void ) src + width;
7e7c5e4c AZ	58	while (src < end) {
	59	data = lduw_raw(src ++);
	60	b = (data & 0x1f) << 3;
	61	data >>= 5;
	62	g = (data & 0x3f) << 2;
	63	data >>= 6;
	64	r = (data & 0x1f) << 3;
	65	data >>= 5;
	66	COPY_PIXEL1(dest, glue(rgb_to_pixel, DEPTH)(r, g, b));
	67	}
	68	#endif
	69	}
	70
	71	static void glue(blizzard_draw_line24mode1_, DEPTH)(PIXEL_TYPE *dest,
	72	const uint8_t *src, unsigned int width)
	73	{
	74	/* TODO: check if SDL 24-bit planes are not in the same format and
	75	* if so, use memcpy */
	76	unsigned int r[2], g[2], b[2];
	77	const uint8_t *end = src + width;
	78	while (src < end) {
	79	g[0] = *src ++;
	80	r[0] = *src ++;
	81	r[1] = *src ++;
	82	b[0] = *src ++;
	83	COPY_PIXEL1(dest, glue(rgb_to_pixel, DEPTH)(r[0], g[0], b[0]));
	84	b[1] = *src ++;
	85	g[1] = *src ++;
	86	COPY_PIXEL1(dest, glue(rgb_to_pixel, DEPTH)(r[1], g[1], b[1]));
	87	}
	88	}
	89
	90	static void glue(blizzard_draw_line24mode2_, DEPTH)(PIXEL_TYPE *dest,
	91	const uint8_t *src, unsigned int width)
	92	{
	93	unsigned int r, g, b;
	94	const uint8_t *end = src + width;
	95	while (src < end) {
	96	r = *src ++;
	97	src ++;
	98	b = *src ++;
	99	g = *src ++;
	100	COPY_PIXEL1(dest, glue(rgb_to_pixel, DEPTH)(r, g, b));
	101	}
	102	}
	103
	104	/* No rotation */
	105	static blizzard_fn_t glue(blizzard_draw_fn_, DEPTH)[0x10] = {
	106	NULL,
	107	/* RGB 5:6:5*/
	108	(blizzard_fn_t) glue(blizzard_draw_line16_, DEPTH),
	109	/* RGB 6:6:6 mode 1 */
	110	(blizzard_fn_t) glue(blizzard_draw_line24mode1_, DEPTH),
	111	/* RGB 8:8:8 mode 1 */
	112	(blizzard_fn_t) glue(blizzard_draw_line24mode1_, DEPTH),
	113	NULL, NULL,
	114	/* RGB 6:6:6 mode 2 */
	115	(blizzard_fn_t) glue(blizzard_draw_line24mode2_, DEPTH),
	116	/* RGB 8:8:8 mode 2 */
	117	(blizzard_fn_t) glue(blizzard_draw_line24mode2_, DEPTH),
	118	/* YUV 4:2:2 */
	119	NULL,
	120	/* YUV 4:2:0 */
	121	NULL,
122	NULL, NULL, NULL, NULL, NULL, NULL,
123	};
124
125	/* 90deg, 180deg and 270deg rotation */
126	static blizzard_fn_t glue(blizzard_draw_fn_r_, DEPTH)[0x10] = {
127	/* TODO */
128	[0 ... 0xf] = NULL,
129	};
130
131	#undef DEPTH
132	#undef SKIP_PIXEL
133	#undef COPY_PIXEL
134	#undef COPY_PIXEL1
135	#undef PIXEL_TYPE
136
137	#undef SWAP_WORDS