WebSVN – HelenOS-historic – Diff – /kernel/trunk/genarch/src/fb/fb.c


/*
 * Copyright (C) 2006 Ondrej Palkovsky
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 * - Redistributions of source code must retain the above copyright
 *   notice, this list of conditions and the following disclaimer.
 * - Redistributions in binary form must reproduce the above copyright
 *   notice, this list of conditions and the following disclaimer in the
 *   documentation and/or other materials provided with the distribution.
 * - The name of the author may not be used to endorse or promote products
 *   derived from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */
 
#include <genarch/fb/font-8x16.h>
#include <genarch/fb/fb.h>
#include <console/chardev.h>
#include <console/console.h>
#include <sysinfo/sysinfo.h>
#include <mm/slab.h>
 
#include <align.h>
#include <panic.h>
#include <memstr.h>
#include <config.h>
 
#include "helenos.xbm"
 
SPINLOCK_INITIALIZE(fb_lock);
 
static __u8 *fbaddress = NULL;
 
static __u8 *blankline = NULL;
 
static unsigned int xres = 0;
static unsigned int yres = 0;
static unsigned int scanline = 0;
static unsigned int bitspp = 0;
static unsigned int pixelbytes = 0;
 
static unsigned int position = 0;
static unsigned int columns = 0;
static unsigned int rows = 0;
 
 
#define COL_WIDTH   8
#define ROW_BYTES   (scanline * FONT_SCANLINES)
 
#define BGCOLOR     0x000080
#define FGCOLOR     0xffff00
#define LOGOCOLOR   0x2020b0
 
#define RED(x, bits)    ((x >> (16 + 8 - bits)) & ((1 << bits) - 1))
#define GREEN(x, bits)  ((x >> (8 + 8 - bits)) & ((1 << bits) - 1))
#define BLUE(x, bits)   ((x >> (8 - bits)) & ((1 << bits) - 1))
 
#define POINTPOS(x, y)  (y * scanline + x * pixelbytes)
 
/***************************************************************/
/* Pixel specific fuctions */
 
static void (*putpixel)(unsigned int x, unsigned int y, int color);
static int (*getpixel)(unsigned int x, unsigned int y);
 
/** Put pixel - 24-bit depth, 1 free byte */
static void putpixel_4byte(unsigned int x, unsigned int y, int color)
{
    *((__u32 *)(fbaddress + POINTPOS(x, y))) = color;
}
 
/** Return pixel color - 24-bit depth, 1 free byte */
static int getpixel_4byte(unsigned int x, unsigned int y)
{
    return *((__u32 *)(fbaddress + POINTPOS(x, y))) & 0xffffff;
}
 
/** Put pixel - 24-bit depth */
static void putpixel_3byte(unsigned int x, unsigned int y, int color)
{
    unsigned int startbyte = POINTPOS(x, y);
 
#if (defined(BIG_ENDIAN) || defined(FB_BIG_ENDIAN))
    fbaddress[startbyte] = RED(color, 8);
    fbaddress[startbyte + 1] = GREEN(color, 8);
    fbaddress[startbyte + 2] = BLUE(color, 8);
#else
    fbaddress[startbyte + 2] = RED(color, 8);
    fbaddress[startbyte + 1] = GREEN(color, 8);
    fbaddress[startbyte + 0] = BLUE(color, 8);
#endif  
}
 
/** Return pixel color - 24-bit depth */
static int getpixel_3byte(unsigned int x, unsigned int y)
{
    unsigned int startbyte = POINTPOS(x, y);
 
#if (defined(BIG_ENDIAN) || defined(FB_BIG_ENDIAN))
    return fbaddress[startbyte] << 16 | fbaddress[startbyte + 1] << 8 | fbaddress[startbyte + 2];
#else
    return fbaddress[startbyte + 2] << 16 | fbaddress[startbyte + 1] << 8 | fbaddress[startbyte + 0];
#endif  
}
 
/** Put pixel - 16-bit depth (5:6:6) */
static void putpixel_2byte(unsigned int x, unsigned int y, int color)
{
    /* 5-bit, 5-bits, 5-bits */
    *((__u16 *)(fbaddress + POINTPOS(x, y))) = RED(color, 5) << 11 | GREEN(color, 6) << 5 | BLUE(color, 5);
}
 
/** Return pixel color - 16-bit depth (5:6:6) */
static int getpixel_2byte(unsigned int x, unsigned int y)
{
    int color = *((__u16 *)(fbaddress + POINTPOS(x, y)));
    return (((color >> 11) & 0x1f) << (16 + 3)) | (((color >> 5) & 0x3f) << (8 + 2)) | ((color & 0x1f) << 3);
}
 
/** Put pixel - 8-bit depth (3:2:3) */
static void putpixel_1byte(unsigned int x, unsigned int y, int color)
{
    fbaddress[POINTPOS(x, y)] = RED(color, 3) << 5 | GREEN(color, 2) << 3 | BLUE(color, 3);
}
 
/** Return pixel color - 8-bit depth (3:2:3) */
static int getpixel_1byte(unsigned int x, unsigned int y)
{
    int color = fbaddress[POINTPOS(x, y)];
    return (((color >> 5) & 0x7) << (16 + 5)) | (((color >> 3) & 0x3) << (8 + 6)) | ((color & 0x7) << 5);
}
 
/** Fill line with color BGCOLOR */
static void clear_line(unsigned int y)
{
    unsigned int x;
   
    for (x = 0; x < xres; x++)
        (*putpixel)(x, y, BGCOLOR);
}
 
 
/** Fill screen with background color */
static void clear_screen(void)
{
    unsigned int y;
 
    for (y = 0; y < yres; y++)
        clear_line(y);
}
 
 
/** Scroll screen one row up */
static void scroll_screen(void)
{
    unsigned int i;
    __u8 *lastline = &fbaddress[(rows - 1) * ROW_BYTES];
 
    memcpy((void *) fbaddress, (void *) &fbaddress[ROW_BYTES], scanline * yres - ROW_BYTES);
 
    /* Clear last row */
    if (blankline) {
        memcpy((void *) lastline, (void *) blankline, ROW_BYTES);
    } else {
        for (i = 0; i < FONT_SCANLINES; i++)
            clear_line((rows - 1) * FONT_SCANLINES + i);
 
        if (config.mm_initialized) {
            /* Save a blank line aside. */
            blankline = (__u8 *) malloc(ROW_BYTES, FRAME_ATOMIC);
            if (blankline)
                memcpy((void *) blankline, (void *) lastline, ROW_BYTES);
        }
    }
}
 
 
static void invert_pixel(unsigned int x, unsigned int y)
{
    (*putpixel)(x, y, ~(*getpixel)(x, y));
}
 
 
/** Draw one line of glyph at a given position */
static void draw_glyph_line(unsigned int glline, unsigned int x, unsigned int y)
{
    unsigned int i;
 
    for (i = 0; i < 8; i++)
        if (glline & (1 << (7 - i))) {
            (*putpixel)(x + i, y, FGCOLOR);
        } else
            (*putpixel)(x + i, y, BGCOLOR);
}
 
/***************************************************************/
/* Character-console functions */
 
/** Draw character at given position */
static void draw_glyph(__u8 glyph, unsigned int col, unsigned int row)
{
    unsigned int y;
 
    for (y = 0; y < FONT_SCANLINES; y++)
        draw_glyph_line(fb_font[glyph * FONT_SCANLINES + y], col * COL_WIDTH, row * FONT_SCANLINES + y);
}
 
/** Invert character at given position */
static void invert_char(unsigned int col, unsigned int row)
{
    unsigned int x;
    unsigned int y;
 
    for (x = 0; x < COL_WIDTH; x++)
        for (y = 0; y < FONT_SCANLINES; y++)
            invert_pixel(col * COL_WIDTH + x, row * FONT_SCANLINES + y);
}
 
/** Draw character at default position */
static void draw_char(char chr)
{
    draw_glyph(chr, position % columns, position / columns);
}
 
static void draw_logo(unsigned int startx, unsigned int starty)
{
    unsigned int x;
    unsigned int y;
    unsigned int byte;
    unsigned int rowbytes;
 
    rowbytes = (helenos_width - 1) / 8 + 1;
 
    for (y = 0; y < helenos_height; y++)
        for (x = 0; x < helenos_width; x++) {
            byte = helenos_bits[rowbytes * y + x / 8];
            byte >>= x % 8;
            if (byte & 1)
                (*putpixel)(startx + x, starty + y, LOGOCOLOR);
        }
}
 
/***************************************************************/
/* Stdout specific functions */
 
static void invert_cursor(void)
{
    invert_char(position % columns, position / columns);
}
 
/** Print character to screen
 *
 *  Emulate basic terminal commands
 */
static void fb_putchar(chardev_t *dev, char ch)
{
    spinlock_lock(&fb_lock);
   
    switch (ch) {
        case '\n':
            invert_cursor();
            position += columns;
            position -= position % columns;
            break;
        case '\r':
            invert_cursor();
            position -= position % columns;
            break;
        case '\b':
            invert_cursor();
            if (position % columns)
                position--;
            break;
        case '\t':
            invert_cursor();
            do {
                draw_char(' ');
                position++;
            } while ((position % 8) && position < columns * rows);
            break;
        default:
            draw_char(ch);
            position++;
    }
   
    if (position >= columns * rows) {
        position -= columns;
        scroll_screen();
    }
   
    invert_cursor();
   
    spinlock_unlock(&fb_lock);
}
 
static chardev_t framebuffer;
static chardev_operations_t fb_ops = {
    .write = fb_putchar,
};
 
 
/** Initialize framebuffer as a chardev output device
 *
 * @param addr Physical address of the framebuffer
 * @param x    Screen width in pixels
 * @param y    Screen height in pixels
 * @param bpp  Bits per pixel (8, 16, 24, 32)
 * @param scan Bytes per one scanline
 *
 */
void fb_init(__address addr, unsigned int x, unsigned int y, unsigned int bpp, unsigned int scan)
{
    switch (bpp) {
        case 8:
            putpixel = putpixel_1byte;
            getpixel = getpixel_1byte;
            pixelbytes = 1;
            break;
        case 16:
            putpixel = putpixel_2byte;
            getpixel = getpixel_2byte;
            pixelbytes = 2;
            break;
        case 24:
            putpixel = putpixel_3byte;
            getpixel = getpixel_3byte;
            pixelbytes = 3;
            break;
        case 32:
            putpixel = putpixel_4byte;
            getpixel = getpixel_4byte;
            pixelbytes = 4;
            break;
        default:
            panic("Unsupported bpp");
    }
   
    unsigned int fbsize = scan * y;
 
 
 
 
 
 
   
    /* Map the framebuffer */
 
 
    fbaddress = (__u8 *) hw_map((__address) addr, fbsize);
   
    xres = x;
    yres = y;
    bitspp = bpp;
    scanline = scan;
   
    rows = y / FONT_SCANLINES;
    columns = x / COL_WIDTH;
 
    clear_screen();
    draw_logo(xres - helenos_width, 0);
    invert_cursor();
 
    chardev_initialize("fb", &framebuffer, &fb_ops);
    stdout = &framebuffer;
   
    sysinfo_set_item_val("fb", NULL, true);
    sysinfo_set_item_val("fb.width", NULL, x);
    sysinfo_set_item_val("fb.height", NULL, y);
    sysinfo_set_item_val("fb.bpp", NULL, bpp);
    sysinfo_set_item_val("fb.scanline", NULL, scan);
    sysinfo_set_item_val("fb.address.physical", NULL, addr);
}
 

Rev 1376	Rev 1382
1	/*	1	/*
2	* Copyright (C) 2006 Ondrej Palkovsky	2	* Copyright (C) 2006 Ondrej Palkovsky
3	* All rights reserved.	3	* All rights reserved.
4	*	4	*
5	* Redistribution and use in source and binary forms, with or without	5	* Redistribution and use in source and binary forms, with or without
6	* modification, are permitted provided that the following conditions	6	* modification, are permitted provided that the following conditions
7	* are met:	7	* are met:
8	*	8	*
9	* - Redistributions of source code must retain the above copyright	9	* - Redistributions of source code must retain the above copyright
10	* notice, this list of conditions and the following disclaimer.	10	* notice, this list of conditions and the following disclaimer.
11	* - Redistributions in binary form must reproduce the above copyright	11	* - Redistributions in binary form must reproduce the above copyright
12	* notice, this list of conditions and the following disclaimer in the	12	* notice, this list of conditions and the following disclaimer in the
13	* documentation and/or other materials provided with the distribution.	13	* documentation and/or other materials provided with the distribution.
14	* - The name of the author may not be used to endorse or promote products	14	* - The name of the author may not be used to endorse or promote products
15	* derived from this software without specific prior written permission.	15	* derived from this software without specific prior written permission.
16	*	16	*
17	* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR	17	* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
18	* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES	18	* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
19	* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.	19	* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
20	* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,	20	* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
21	* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT	21	* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
22	* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,	22	* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23	* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY	23	* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24	* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT	24	* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25	* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF	25	* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
26	* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.	26	* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27	*/	27	*/
28		28
29	#include <genarch/fb/font-8x16.h>	29	#include <genarch/fb/font-8x16.h>
30	#include <genarch/fb/fb.h>	30	#include <genarch/fb/fb.h>
31	#include <console/chardev.h>	31	#include <console/chardev.h>
32	#include <console/console.h>	32	#include <console/console.h>
33	#include <sysinfo/sysinfo.h>	33	#include <sysinfo/sysinfo.h>
34	#include <mm/slab.h>	34	#include <mm/slab.h>
35	#include <bitops.h>	-
36	#include <align.h>	35	#include <align.h>
37	#include <panic.h>	36	#include <panic.h>
38	#include <memstr.h>	37	#include <memstr.h>
39	#include <config.h>	38	#include <config.h>
40		39
41	#include "helenos.xbm"	40	#include "helenos.xbm"
42		41
43	SPINLOCK_INITIALIZE(fb_lock);	42	SPINLOCK_INITIALIZE(fb_lock);
44		43
45	static __u8 *fbaddress = NULL;	44	static __u8 *fbaddress = NULL;
46		45
47	static __u8 *blankline = NULL;	46	static __u8 *blankline = NULL;
48		47
49	static unsigned int xres = 0;	48	static unsigned int xres = 0;
50	static unsigned int yres = 0;	49	static unsigned int yres = 0;
51	static unsigned int scanline = 0;	50	static unsigned int scanline = 0;
52	static unsigned int bitspp = 0;	51	static unsigned int bitspp = 0;
53	static unsigned int pixelbytes = 0;	52	static unsigned int pixelbytes = 0;
54		53
55	static unsigned int position = 0;	54	static unsigned int position = 0;
56	static unsigned int columns = 0;	55	static unsigned int columns = 0;
57	static unsigned int rows = 0;	56	static unsigned int rows = 0;
58		57
59		58
60	#define COL_WIDTH 8	59	#define COL_WIDTH 8
61	#define ROW_BYTES (scanline * FONT_SCANLINES)	60	#define ROW_BYTES (scanline * FONT_SCANLINES)
62		61
63	#define BGCOLOR 0x000080	62	#define BGCOLOR 0x000080
64	#define FGCOLOR 0xffff00	63	#define FGCOLOR 0xffff00
65	#define LOGOCOLOR 0x2020b0	64	#define LOGOCOLOR 0x2020b0
66		65
67	#define RED(x, bits) ((x >> (16 + 8 - bits)) & ((1 << bits) - 1))	66	#define RED(x, bits) ((x >> (16 + 8 - bits)) & ((1 << bits) - 1))
68	#define GREEN(x, bits) ((x >> (8 + 8 - bits)) & ((1 << bits) - 1))	67	#define GREEN(x, bits) ((x >> (8 + 8 - bits)) & ((1 << bits) - 1))
69	#define BLUE(x, bits) ((x >> (8 - bits)) & ((1 << bits) - 1))	68	#define BLUE(x, bits) ((x >> (8 - bits)) & ((1 << bits) - 1))
70		69
71	#define POINTPOS(x, y) (y * scanline + x * pixelbytes)	70	#define POINTPOS(x, y) (y * scanline + x * pixelbytes)
72		71
73	/***************************************************************/	72	/***************************************************************/
74	/* Pixel specific fuctions */	73	/* Pixel specific fuctions */
75		74
76	static void (*putpixel)(unsigned int x, unsigned int y, int color);	75	static void (*putpixel)(unsigned int x, unsigned int y, int color);
77	static int (*getpixel)(unsigned int x, unsigned int y);	76	static int (*getpixel)(unsigned int x, unsigned int y);
78		77
79	/** Put pixel - 24-bit depth, 1 free byte */	78	/** Put pixel - 24-bit depth, 1 free byte */
80	static void putpixel_4byte(unsigned int x, unsigned int y, int color)	79	static void putpixel_4byte(unsigned int x, unsigned int y, int color)
81	{	80	{
82	((__u32 )(fbaddress + POINTPOS(x, y))) = color;	81	((__u32 )(fbaddress + POINTPOS(x, y))) = color;
83	}	82	}
84		83
85	/** Return pixel color - 24-bit depth, 1 free byte */	84	/** Return pixel color - 24-bit depth, 1 free byte */
86	static int getpixel_4byte(unsigned int x, unsigned int y)	85	static int getpixel_4byte(unsigned int x, unsigned int y)
87	{	86	{
88	return ((__u32 )(fbaddress + POINTPOS(x, y))) & 0xffffff;	87	return ((__u32 )(fbaddress + POINTPOS(x, y))) & 0xffffff;
89	}	88	}
90		89
91	/** Put pixel - 24-bit depth */	90	/** Put pixel - 24-bit depth */
92	static void putpixel_3byte(unsigned int x, unsigned int y, int color)	91	static void putpixel_3byte(unsigned int x, unsigned int y, int color)
93	{	92	{
94	unsigned int startbyte = POINTPOS(x, y);	93	unsigned int startbyte = POINTPOS(x, y);
95		94
96	#if (defined(BIG_ENDIAN) \|\| defined(FB_BIG_ENDIAN))	95	#if (defined(BIG_ENDIAN) \|\| defined(FB_BIG_ENDIAN))
97	fbaddress[startbyte] = RED(color, 8);	96	fbaddress[startbyte] = RED(color, 8);
98	fbaddress[startbyte + 1] = GREEN(color, 8);	97	fbaddress[startbyte + 1] = GREEN(color, 8);
99	fbaddress[startbyte + 2] = BLUE(color, 8);	98	fbaddress[startbyte + 2] = BLUE(color, 8);
100	#else	99	#else
101	fbaddress[startbyte + 2] = RED(color, 8);	100	fbaddress[startbyte + 2] = RED(color, 8);
102	fbaddress[startbyte + 1] = GREEN(color, 8);	101	fbaddress[startbyte + 1] = GREEN(color, 8);
103	fbaddress[startbyte + 0] = BLUE(color, 8);	102	fbaddress[startbyte + 0] = BLUE(color, 8);
104	#endif	103	#endif
105	}	104	}
106		105
107	/** Return pixel color - 24-bit depth */	106	/** Return pixel color - 24-bit depth */
108	static int getpixel_3byte(unsigned int x, unsigned int y)	107	static int getpixel_3byte(unsigned int x, unsigned int y)
109	{	108	{
110	unsigned int startbyte = POINTPOS(x, y);	109	unsigned int startbyte = POINTPOS(x, y);
111		110
112	#if (defined(BIG_ENDIAN) \|\| defined(FB_BIG_ENDIAN))	111	#if (defined(BIG_ENDIAN) \|\| defined(FB_BIG_ENDIAN))
113	return fbaddress[startbyte] << 16 \| fbaddress[startbyte + 1] << 8 \| fbaddress[startbyte + 2];	112	return fbaddress[startbyte] << 16 \| fbaddress[startbyte + 1] << 8 \| fbaddress[startbyte + 2];
114	#else	113	#else
115	return fbaddress[startbyte + 2] << 16 \| fbaddress[startbyte + 1] << 8 \| fbaddress[startbyte + 0];	114	return fbaddress[startbyte + 2] << 16 \| fbaddress[startbyte + 1] << 8 \| fbaddress[startbyte + 0];
116	#endif	115	#endif
117	}	116	}
118		117
119	/** Put pixel - 16-bit depth (5:6:6) */	118	/** Put pixel - 16-bit depth (5:6:6) */
120	static void putpixel_2byte(unsigned int x, unsigned int y, int color)	119	static void putpixel_2byte(unsigned int x, unsigned int y, int color)
121	{	120	{
122	/* 5-bit, 5-bits, 5-bits */	121	/* 5-bit, 5-bits, 5-bits */
123	((__u16 )(fbaddress + POINTPOS(x, y))) = RED(color, 5) << 11 \| GREEN(color, 6) << 5 \| BLUE(color, 5);	122	((__u16 )(fbaddress + POINTPOS(x, y))) = RED(color, 5) << 11 \| GREEN(color, 6) << 5 \| BLUE(color, 5);
124	}	123	}
125		124
126	/** Return pixel color - 16-bit depth (5:6:6) */	125	/** Return pixel color - 16-bit depth (5:6:6) */
127	static int getpixel_2byte(unsigned int x, unsigned int y)	126	static int getpixel_2byte(unsigned int x, unsigned int y)
128	{	127	{
129	int color = ((__u16 )(fbaddress + POINTPOS(x, y)));	128	int color = ((__u16 )(fbaddress + POINTPOS(x, y)));
130	return (((color >> 11) & 0x1f) << (16 + 3)) \| (((color >> 5) & 0x3f) << (8 + 2)) \| ((color & 0x1f) << 3);	129	return (((color >> 11) & 0x1f) << (16 + 3)) \| (((color >> 5) & 0x3f) << (8 + 2)) \| ((color & 0x1f) << 3);
131	}	130	}
132		131
133	/** Put pixel - 8-bit depth (3:2:3) */	132	/** Put pixel - 8-bit depth (3:2:3) */
134	static void putpixel_1byte(unsigned int x, unsigned int y, int color)	133	static void putpixel_1byte(unsigned int x, unsigned int y, int color)
135	{	134	{
136	fbaddress[POINTPOS(x, y)] = RED(color, 3) << 5 \| GREEN(color, 2) << 3 \| BLUE(color, 3);	135	fbaddress[POINTPOS(x, y)] = RED(color, 3) << 5 \| GREEN(color, 2) << 3 \| BLUE(color, 3);
137	}	136	}
138		137
139	/** Return pixel color - 8-bit depth (3:2:3) */	138	/** Return pixel color - 8-bit depth (3:2:3) */
140	static int getpixel_1byte(unsigned int x, unsigned int y)	139	static int getpixel_1byte(unsigned int x, unsigned int y)
141	{	140	{
142	int color = fbaddress[POINTPOS(x, y)];	141	int color = fbaddress[POINTPOS(x, y)];
143	return (((color >> 5) & 0x7) << (16 + 5)) \| (((color >> 3) & 0x3) << (8 + 6)) \| ((color & 0x7) << 5);	142	return (((color >> 5) & 0x7) << (16 + 5)) \| (((color >> 3) & 0x3) << (8 + 6)) \| ((color & 0x7) << 5);
144	}	143	}
145		144
146	/** Fill line with color BGCOLOR */	145	/** Fill line with color BGCOLOR */
147	static void clear_line(unsigned int y)	146	static void clear_line(unsigned int y)
148	{	147	{
149	unsigned int x;	148	unsigned int x;
150		149
151	for (x = 0; x < xres; x++)	150	for (x = 0; x < xres; x++)
152	(*putpixel)(x, y, BGCOLOR);	151	(*putpixel)(x, y, BGCOLOR);
153	}	152	}
154		153
155		154
156	/** Fill screen with background color */	155	/** Fill screen with background color */
157	static void clear_screen(void)	156	static void clear_screen(void)
158	{	157	{
159	unsigned int y;	158	unsigned int y;
160		159
161	for (y = 0; y < yres; y++)	160	for (y = 0; y < yres; y++)
162	clear_line(y);	161	clear_line(y);
163	}	162	}
164		163
165		164
166	/** Scroll screen one row up */	165	/** Scroll screen one row up */
167	static void scroll_screen(void)	166	static void scroll_screen(void)
168	{	167	{
169	unsigned int i;	168	unsigned int i;
170	__u8 lastline = &fbaddress[(rows - 1) ROW_BYTES];	169	__u8 lastline = &fbaddress[(rows - 1) ROW_BYTES];
171		170
172	memcpy((void ) fbaddress, (void ) &fbaddress[ROW_BYTES], scanline * yres - ROW_BYTES);	171	memcpy((void ) fbaddress, (void ) &fbaddress[ROW_BYTES], scanline * yres - ROW_BYTES);
173		172
174	/* Clear last row */	173	/* Clear last row */
175	if (blankline) {	174	if (blankline) {
176	memcpy((void ) lastline, (void ) blankline, ROW_BYTES);	175	memcpy((void ) lastline, (void ) blankline, ROW_BYTES);
177	} else {	176	} else {
178	for (i = 0; i < FONT_SCANLINES; i++)	177	for (i = 0; i < FONT_SCANLINES; i++)
179	clear_line((rows - 1) * FONT_SCANLINES + i);	178	clear_line((rows - 1) * FONT_SCANLINES + i);
180		179
181	if (config.mm_initialized) {	180	if (config.mm_initialized) {
182	/* Save a blank line aside. */	181	/* Save a blank line aside. */
183	blankline = (__u8 *) malloc(ROW_BYTES, FRAME_ATOMIC);	182	blankline = (__u8 *) malloc(ROW_BYTES, FRAME_ATOMIC);
184	if (blankline)	183	if (blankline)
185	memcpy((void ) blankline, (void ) lastline, ROW_BYTES);	184	memcpy((void ) blankline, (void ) lastline, ROW_BYTES);
186	}	185	}
187	}	186	}
188	}	187	}
189		188
190		189
191	static void invert_pixel(unsigned int x, unsigned int y)	190	static void invert_pixel(unsigned int x, unsigned int y)
192	{	191	{
193	(putpixel)(x, y, ~(getpixel)(x, y));	192	(putpixel)(x, y, ~(getpixel)(x, y));
194	}	193	}
195		194
196		195
197	/** Draw one line of glyph at a given position */	196	/** Draw one line of glyph at a given position */
198	static void draw_glyph_line(unsigned int glline, unsigned int x, unsigned int y)	197	static void draw_glyph_line(unsigned int glline, unsigned int x, unsigned int y)
199	{	198	{
200	unsigned int i;	199	unsigned int i;
201		200
202	for (i = 0; i < 8; i++)	201	for (i = 0; i < 8; i++)
203	if (glline & (1 << (7 - i))) {	202	if (glline & (1 << (7 - i))) {
204	(*putpixel)(x + i, y, FGCOLOR);	203	(*putpixel)(x + i, y, FGCOLOR);
205	} else	204	} else
206	(*putpixel)(x + i, y, BGCOLOR);	205	(*putpixel)(x + i, y, BGCOLOR);
207	}	206	}
208		207
209	/***************************************************************/	208	/***************************************************************/
210	/* Character-console functions */	209	/* Character-console functions */
211		210
212	/** Draw character at given position */	211	/** Draw character at given position */
213	static void draw_glyph(__u8 glyph, unsigned int col, unsigned int row)	212	static void draw_glyph(__u8 glyph, unsigned int col, unsigned int row)
214	{	213	{
215	unsigned int y;	214	unsigned int y;
216		215
217	for (y = 0; y < FONT_SCANLINES; y++)	216	for (y = 0; y < FONT_SCANLINES; y++)
218	draw_glyph_line(fb_font[glyph * FONT_SCANLINES + y], col * COL_WIDTH, row * FONT_SCANLINES + y);	217	draw_glyph_line(fb_font[glyph * FONT_SCANLINES + y], col * COL_WIDTH, row * FONT_SCANLINES + y);
219	}	218	}
220		219
221	/** Invert character at given position */	220	/** Invert character at given position */
222	static void invert_char(unsigned int col, unsigned int row)	221	static void invert_char(unsigned int col, unsigned int row)
223	{	222	{
224	unsigned int x;	223	unsigned int x;
225	unsigned int y;	224	unsigned int y;
226		225
227	for (x = 0; x < COL_WIDTH; x++)	226	for (x = 0; x < COL_WIDTH; x++)
228	for (y = 0; y < FONT_SCANLINES; y++)	227	for (y = 0; y < FONT_SCANLINES; y++)
229	invert_pixel(col * COL_WIDTH + x, row * FONT_SCANLINES + y);	228	invert_pixel(col * COL_WIDTH + x, row * FONT_SCANLINES + y);
230	}	229	}
231		230
232	/** Draw character at default position */	231	/** Draw character at default position */
233	static void draw_char(char chr)	232	static void draw_char(char chr)
234	{	233	{
235	draw_glyph(chr, position % columns, position / columns);	234	draw_glyph(chr, position % columns, position / columns);
236	}	235	}
237		236
238	static void draw_logo(unsigned int startx, unsigned int starty)	237	static void draw_logo(unsigned int startx, unsigned int starty)
239	{	238	{
240	unsigned int x;	239	unsigned int x;
241	unsigned int y;	240	unsigned int y;
242	unsigned int byte;	241	unsigned int byte;
243	unsigned int rowbytes;	242	unsigned int rowbytes;
244		243
245	rowbytes = (helenos_width - 1) / 8 + 1;	244	rowbytes = (helenos_width - 1) / 8 + 1;
246		245
247	for (y = 0; y < helenos_height; y++)	246	for (y = 0; y < helenos_height; y++)
248	for (x = 0; x < helenos_width; x++) {	247	for (x = 0; x < helenos_width; x++) {
249	byte = helenos_bits[rowbytes * y + x / 8];	248	byte = helenos_bits[rowbytes * y + x / 8];
250	byte >>= x % 8;	249	byte >>= x % 8;
251	if (byte & 1)	250	if (byte & 1)
252	(*putpixel)(startx + x, starty + y, LOGOCOLOR);	251	(*putpixel)(startx + x, starty + y, LOGOCOLOR);
253	}	252	}
254	}	253	}
255		254
256	/***************************************************************/	255	/***************************************************************/
257	/* Stdout specific functions */	256	/* Stdout specific functions */
258		257
259	static void invert_cursor(void)	258	static void invert_cursor(void)
260	{	259	{
261	invert_char(position % columns, position / columns);	260	invert_char(position % columns, position / columns);
262	}	261	}
263		262
264	/** Print character to screen	263	/** Print character to screen
265	*	264	*
266	* Emulate basic terminal commands	265	* Emulate basic terminal commands
267	*/	266	*/
268	static void fb_putchar(chardev_t *dev, char ch)	267	static void fb_putchar(chardev_t *dev, char ch)
269	{	268	{
270	spinlock_lock(&fb_lock);	269	spinlock_lock(&fb_lock);
271		270
272	switch (ch) {	271	switch (ch) {
273	case '\n':	272	case '\n':
274	invert_cursor();	273	invert_cursor();
275	position += columns;	274	position += columns;
276	position -= position % columns;	275	position -= position % columns;
277	break;	276	break;
278	case '\r':	277	case '\r':
279	invert_cursor();	278	invert_cursor();
280	position -= position % columns;	279	position -= position % columns;
281	break;	280	break;
282	case '\b':	281	case '\b':
283	invert_cursor();	282	invert_cursor();
284	if (position % columns)	283	if (position % columns)
285	position--;	284	position--;
286	break;	285	break;
287	case '\t':	286	case '\t':
288	invert_cursor();	287	invert_cursor();
289	do {	288	do {
290	draw_char(' ');	289	draw_char(' ');
291	position++;	290	position++;
292	} while ((position % 8) && position < columns * rows);	291	} while ((position % 8) && position < columns * rows);
293	break;	292	break;
294	default:	293	default:
295	draw_char(ch);	294	draw_char(ch);
296	position++;	295	position++;
297	}	296	}
298		297
299	if (position >= columns * rows) {	298	if (position >= columns * rows) {
300	position -= columns;	299	position -= columns;
301	scroll_screen();	300	scroll_screen();
302	}	301	}
303		302
304	invert_cursor();	303	invert_cursor();
305		304
306	spinlock_unlock(&fb_lock);	305	spinlock_unlock(&fb_lock);
307	}	306	}
308		307
309	static chardev_t framebuffer;	308	static chardev_t framebuffer;
310	static chardev_operations_t fb_ops = {	309	static chardev_operations_t fb_ops = {
311	.write = fb_putchar,	310	.write = fb_putchar,
312	};	311	};
313		312
314		313
315	/** Initialize framebuffer as a chardev output device	314	/** Initialize framebuffer as a chardev output device
316	*	315	*
317	* @param addr Physical address of the framebuffer	316	* @param addr Physical address of the framebuffer
318	* @param x Screen width in pixels	317	* @param x Screen width in pixels
319	* @param y Screen height in pixels	318	* @param y Screen height in pixels
320	* @param bpp Bits per pixel (8, 16, 24, 32)	319	* @param bpp Bits per pixel (8, 16, 24, 32)
321	* @param scan Bytes per one scanline	320	* @param scan Bytes per one scanline
322	*	321	*
323	*/	322	*/
324	void fb_init(__address addr, unsigned int x, unsigned int y, unsigned int bpp, unsigned int scan)	323	void fb_init(__address addr, unsigned int x, unsigned int y, unsigned int bpp, unsigned int scan)
325	{	324	{
326	switch (bpp) {	325	switch (bpp) {
327	case 8:	326	case 8:
328	putpixel = putpixel_1byte;	327	putpixel = putpixel_1byte;
329	getpixel = getpixel_1byte;	328	getpixel = getpixel_1byte;
330	pixelbytes = 1;	329	pixelbytes = 1;
331	break;	330	break;
332	case 16:	331	case 16:
333	putpixel = putpixel_2byte;	332	putpixel = putpixel_2byte;
334	getpixel = getpixel_2byte;	333	getpixel = getpixel_2byte;
335	pixelbytes = 2;	334	pixelbytes = 2;
336	break;	335	break;
337	case 24:	336	case 24:
338	putpixel = putpixel_3byte;	337	putpixel = putpixel_3byte;
339	getpixel = getpixel_3byte;	338	getpixel = getpixel_3byte;
340	pixelbytes = 3;	339	pixelbytes = 3;
341	break;	340	break;
342	case 32:	341	case 32:
343	putpixel = putpixel_4byte;	342	putpixel = putpixel_4byte;
344	getpixel = getpixel_4byte;	343	getpixel = getpixel_4byte;
345	pixelbytes = 4;	344	pixelbytes = 4;
346	break;	345	break;
347	default:	346	default:
348	panic("Unsupported bpp");	347	panic("Unsupported bpp");
349	}	348	}
350		349
351	unsigned int fbsize = scan * y;	350	unsigned int fbsize = scan * y;
352	unsigned int fborder;	-
353		-
354	if (fbsize <= FRAME_SIZE)	-
355	fborder = 0;	-
356	else	-
357	fborder = (fnzb32(fbsize - 1) + 1) - FRAME_WIDTH;	-
358		351
359	/* Map the framebuffer */	352	/* Map the framebuffer */
360	fbaddress = (__u8 *) PA2KA(PFN2ADDR(frame_alloc(fborder, FRAME_KA)));	-
361		-
362	fb_map_arch((__address) fbaddress, (__address) addr, fbsize);	353	fbaddress = (__u8 *) hw_map((__address) addr, fbsize);
363		354
364	xres = x;	355	xres = x;
365	yres = y;	356	yres = y;
366	bitspp = bpp;	357	bitspp = bpp;
367	scanline = scan;	358	scanline = scan;
368		359
369	rows = y / FONT_SCANLINES;	360	rows = y / FONT_SCANLINES;
370	columns = x / COL_WIDTH;	361	columns = x / COL_WIDTH;
371		362
372	clear_screen();	363	clear_screen();
373	draw_logo(xres - helenos_width, 0);	364	draw_logo(xres - helenos_width, 0);
374	invert_cursor();	365	invert_cursor();
375		366
376	chardev_initialize("fb", &framebuffer, &fb_ops);	367	chardev_initialize("fb", &framebuffer, &fb_ops);
377	stdout = &framebuffer;	368	stdout = &framebuffer;
378		369
379	sysinfo_set_item_val("fb", NULL, true);	370	sysinfo_set_item_val("fb", NULL, true);
380	sysinfo_set_item_val("fb.width", NULL, x);	371	sysinfo_set_item_val("fb.width", NULL, x);
381	sysinfo_set_item_val("fb.height", NULL, y);	372	sysinfo_set_item_val("fb.height", NULL, y);
382	sysinfo_set_item_val("fb.bpp", NULL, bpp);	373	sysinfo_set_item_val("fb.bpp", NULL, bpp);
383	sysinfo_set_item_val("fb.scanline", NULL, scan);	374	sysinfo_set_item_val("fb.scanline", NULL, scan);
384	sysinfo_set_item_val("fb.address.physical", NULL, addr);	375	sysinfo_set_item_val("fb.address.physical", NULL, addr);
385	}	376	}
386		377

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(root)/kernel/trunk/genarch/src/fb/fb.c – Rev 1376 → 1382