[qemu.git] / hw / sm501_template.h

/*
 * Pixel drawing function templates for QEMU SM501 Device
 *
 * Copyright (c) 2008 Shin-ichiro KAWASAKI
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 * THE SOFTWARE.
 */

#if DEPTH == 8
#define BPP 1
#define PIXEL_TYPE uint8_t
#elif DEPTH == 15 || DEPTH == 16
#define BPP 2
#define PIXEL_TYPE uint16_t
#elif DEPTH == 32
#define BPP 4
#define PIXEL_TYPE uint32_t
#else
#error unsupport depth
#endif

#ifdef BGR_FORMAT
#define PIXEL_NAME glue(DEPTH, bgr)
#else
#define PIXEL_NAME DEPTH
#endif /* BGR_FORMAT */


static void glue(draw_line8_, PIXEL_NAME)(
                 uint8_t *d, const uint8_t *s, int width, const uint32_t *pal)
{
    uint8_t v, r, g, b;
    do {
      	v = ldub_raw(s);
	r = (pal[v] >> 16) & 0xff;
	g = (pal[v] >>  8) & 0xff;
	b = (pal[v] >>  0) & 0xff;
	((PIXEL_TYPE *) d)[0] = glue(rgb_to_pixel, PIXEL_NAME)(r, g, b);
	s ++;
	d += BPP;
    } while (-- width != 0);
}

static void glue(draw_line16_, PIXEL_NAME)(
		 uint8_t *d, const uint8_t *s, int width, const uint32_t *pal)
{
    uint16_t rgb565;
    uint8_t r, g, b;

    do {
	rgb565 = lduw_raw(s);
	r = ((rgb565 >> 11) & 0x1f) << 3;
	g = ((rgb565 >>  5) & 0x3f) << 2;
	b = ((rgb565 >>  0) & 0x1f) << 3;
	((PIXEL_TYPE *) d)[0] = glue(rgb_to_pixel, PIXEL_NAME)(r, g, b);
	s += 2;
	d += BPP;
    } while (-- width != 0);
}

static void glue(draw_line32_, PIXEL_NAME)(
		 uint8_t *d, const uint8_t *s, int width, const uint32_t *pal)
{
    uint8_t r, g, b;

    do {
	ldub_raw(s);
#if defined(TARGET_WORDS_BIGENDIAN)
        r = s[1];
        g = s[2];
        b = s[3];
#else
        b = s[0];
        g = s[1];
        r = s[2];
#endif
	((PIXEL_TYPE *) d)[0] = glue(rgb_to_pixel, PIXEL_NAME)(r, g, b);
	s += 4;
	d += BPP;
    } while (-- width != 0);
}

/**
 * Draw hardware cursor image on the given line.
 */
static void glue(draw_hwc_line_, PIXEL_NAME)(SM501State * s, int crt,
                         uint8_t * palette, int c_y, uint8_t *d, int width)
{
    int x, i;
    uint8_t bitset = 0;

    /* get hardware cursor pattern */
    uint32_t cursor_addr = get_hwc_address(s, crt);
    assert(0 <= c_y && c_y < SM501_HWC_HEIGHT);
    cursor_addr += 64 * c_y / 4;  /* 4 pixels per byte */
    cursor_addr += s->base;

    /* get cursor position */
    x = get_hwc_x(s, crt);
    d += x * BPP;

    for (i = 0; i < SM501_HWC_WIDTH && x + i < width; i++) {
        uint8_t v;

        /* get pixel value */
        if (i % 4 == 0) {
            bitset = ldub_phys(cursor_addr);
            cursor_addr++;
        }
        v = bitset & 3;
        bitset >>= 2;

        /* write pixel */
        if (v) {
            v--;
            uint8_t r = palette[v * 3 + 0];
            uint8_t g = palette[v * 3 + 1];
            uint8_t b = palette[v * 3 + 2];
            ((PIXEL_TYPE *) d)[0] = glue(rgb_to_pixel, PIXEL_NAME)(r, g, b);
        }
        d += BPP;
    }
}

#undef DEPTH
#undef BPP
#undef PIXEL_TYPE
#undef PIXEL_NAME
#undef BGR_FORMAT
Commit	Line	Data
ffd39257 BS	1	/*
	2	* Pixel drawing function templates for QEMU SM501 Device
	3	*
	4	* Copyright (c) 2008 Shin-ichiro KAWASAKI
	5	*
	6	* Permission is hereby granted, free of charge, to any person obtaining a copy
	7	* of this software and associated documentation files (the "Software"), to deal
	8	* in the Software without restriction, including without limitation the rights
	9	* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
	10	* copies of the Software, and to permit persons to whom the Software is
	11	* furnished to do so, subject to the following conditions:
	12	*
	13	* The above copyright notice and this permission notice shall be included in
	14	* all copies or substantial portions of the Software.
	15	*
	16	* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
	17	* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
	18	* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
	19	* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
	20	* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
	21	* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
	22	* THE SOFTWARE.
	23	*/
	24
	25	#if DEPTH == 8
	26	#define BPP 1
	27	#define PIXEL_TYPE uint8_t
	28	#elif DEPTH == 15 \|\| DEPTH == 16
	29	#define BPP 2
	30	#define PIXEL_TYPE uint16_t
	31	#elif DEPTH == 32
	32	#define BPP 4
	33	#define PIXEL_TYPE uint32_t
	34	#else
	35	#error unsupport depth
	36	#endif
	37
	38	#ifdef BGR_FORMAT
	39	#define PIXEL_NAME glue(DEPTH, bgr)
	40	#else
	41	#define PIXEL_NAME DEPTH
	42	#endif /* BGR_FORMAT */
	43
	44
	45	static void glue(draw_line8_, PIXEL_NAME)(
	46	uint8_t d, const uint8_t s, int width, const uint32_t *pal)
	47	{
	48	uint8_t v, r, g, b;
	49	do {
	50	v = ldub_raw(s);
	51	r = (pal[v] >> 16) & 0xff;
	52	g = (pal[v] >> 8) & 0xff;
	53	b = (pal[v] >> 0) & 0xff;
	54	((PIXEL_TYPE *) d)[0] = glue(rgb_to_pixel, PIXEL_NAME)(r, g, b);
	55	s ++;
	56	d += BPP;
	57	} while (-- width != 0);
	58	}
	59
	60	static void glue(draw_line16_, PIXEL_NAME)(
	61	uint8_t d, const uint8_t s, int width, const uint32_t *pal)
	62	{
	63	uint16_t rgb565;
	64	uint8_t r, g, b;
65
66	do {
67	rgb565 = lduw_raw(s);
68	r = ((rgb565 >> 11) & 0x1f) << 3;
69	g = ((rgb565 >> 5) & 0x3f) << 2;
70	b = ((rgb565 >> 0) & 0x1f) << 3;
71	((PIXEL_TYPE *) d)[0] = glue(rgb_to_pixel, PIXEL_NAME)(r, g, b);
72	s += 2;
73	d += BPP;
74	} while (-- width != 0);
75	}
76
77	static void glue(draw_line32_, PIXEL_NAME)(
78	uint8_t d, const uint8_t s, int width, const uint32_t *pal)
79	{
80	uint8_t r, g, b;
81
82	do {
83	ldub_raw(s);
84	#if defined(TARGET_WORDS_BIGENDIAN)
85	r = s[1];
86	g = s[2];
87	b = s[3];
88	#else
89	b = s[0];
90	g = s[1];
91	r = s[2];
92	#endif
93	((PIXEL_TYPE *) d)[0] = glue(rgb_to_pixel, PIXEL_NAME)(r, g, b);
94	s += 4;
95	d += BPP;
96	} while (-- width != 0);
97	}
98
0a4e7cd2 SK	99	/**
	100	* Draw hardware cursor image on the given line.
	101	*/
	102	static void glue(draw_hwc_line_, PIXEL_NAME)(SM501State * s, int crt,
	103	uint8_t * palette, int c_y, uint8_t *d, int width)
	104	{
	105	int x, i;
	106	uint8_t bitset = 0;
	107
	108	/* get hardware cursor pattern */
	109	uint32_t cursor_addr = get_hwc_address(s, crt);
	110	assert(0 <= c_y && c_y < SM501_HWC_HEIGHT);
	111	cursor_addr += 64 * c_y / 4; /* 4 pixels per byte */
	112	cursor_addr += s->base;
	113
	114	/* get cursor position */
	115	x = get_hwc_x(s, crt);
	116	d += x * BPP;
	117
	118	for (i = 0; i < SM501_HWC_WIDTH && x + i < width; i++) {
	119	uint8_t v;
	120
	121	/* get pixel value */
	122	if (i % 4 == 0) {
54f7b4a3	123	bitset = ldub_phys(cursor_addr);
0a4e7cd2 SK	124	cursor_addr++;
	125	}
	126	v = bitset & 3;
	127	bitset >>= 2;
	128
	129	/* write pixel */
	130	if (v) {
	131	v--;
	132	uint8_t r = palette[v * 3 + 0];
	133	uint8_t g = palette[v * 3 + 1];
	134	uint8_t b = palette[v * 3 + 2];
	135	((PIXEL_TYPE *) d)[0] = glue(rgb_to_pixel, PIXEL_NAME)(r, g, b);
	136	}
	137	d += BPP;
	138	}
	139	}
	140
ffd39257 BS	141	#undef DEPTH
	142	#undef BPP
	143	#undef PIXEL_TYPE
	144	#undef PIXEL_NAME
	145	#undef BGR_FORMAT