WebSVN – HelenOS – Diff – /trunk/kernel/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.
 */
 
/** @addtogroup genarch
 * @{
 */
/** @file
 */
 
#include <genarch/fb/font-8x16.h>
#include <genarch/fb/visuals.h>
#include <genarch/fb/fb.h>
#include <console/chardev.h>
#include <console/console.h>
#include <sysinfo/sysinfo.h>
#include <mm/slab.h>
 
#include <panic.h>
#include <memstr.h>
#include <config.h>
#include <bitops.h>
#include <print.h>
#include <ddi/ddi.h>
#include <arch/types.h>
#include <typedefs.h>
 
#include "helenos.xbm"
 
static parea_t fb_parea;        /**< Physical memory area for fb. */
 
SPINLOCK_INITIALIZE(fb_lock);
 
static uint8_t *fbaddress = NULL;
 
static uint8_t *blankline = NULL;
static uint8_t *dbbuffer = NULL;    /* Buffer for fast scrolling console */
static index_t dboffset;
 
static unsigned int xres = 0;
static unsigned int yres = 0;
static unsigned int scanline = 0;
static unsigned int pixelbytes = 0;
#ifdef FB_INVERT_COLORS
static bool invert_colors = true;
#else
static bool invert_colors = false;
#endif
 
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 (*rgb2scr)(void *, int);
static int (*scr2rgb)(void *);
 
static inline int COLOR(int color)
{
    return invert_colors ? ~color : color;
}
 
/* Conversion routines between different color representations */
static void rgb_byte0888(void *dst, int rgb)
{
    *((int *) dst) = rgb;
}
 
static int byte0888_rgb(void *src)
{
    return (*((int *) src)) & 0xffffff;
}
 
static void bgr_byte0888(void *dst, int rgb)
{
    *((uint32_t *) dst) = BLUE(rgb, 8) << 16 | GREEN(rgb, 8) << 8 | RED(rgb,
        8);
}
 
static int byte0888_bgr(void *src)
{
    int color = *(uint32_t *)(src);
    return ((color & 0xff) << 16) | (((color >> 8) & 0xff) << 8) | ((color
        >> 16) & 0xff);
}
 
static void rgb_byte888(void *dst, int rgb)
{
    uint8_t *scr = dst;
#if defined(FB_INVERT_ENDIAN)
    scr[0] = RED(rgb, 8);
    scr[1] = GREEN(rgb, 8);
    scr[2] = BLUE(rgb, 8);
#else
    scr[2] = RED(rgb, 8);
    scr[1] = GREEN(rgb, 8);
    scr[0] = BLUE(rgb, 8);
#endif
}
 
static int byte888_rgb(void *src)
{
    uint8_t *scr = src;
#if defined(FB_INVERT_ENDIAN)
    return scr[0] << 16 | scr[1] << 8 | scr[2];
#else
    return scr[2] << 16 | scr[1] << 8 | scr[0];
#endif  
}
 
/**  16-bit depth (5:5:5) */
static void rgb_byte555(void *dst, int rgb)
{
    /* 5-bit, 5-bits, 5-bits */
    *((uint16_t *) dst) = RED(rgb, 5) << 10 | GREEN(rgb, 5) << 5 | BLUE(rgb,
        5);
}
 
/** 16-bit depth (5:5:5) */
static int byte555_rgb(void *src)
{
    int color = *(uint16_t *)(src);
    return (((color >> 10) & 0x1f) << (16 + 3)) | (((color >> 5) & 0x1f) <<
        (8 + 3)) | ((color & 0x1f) << 3);
}
 
/**  16-bit depth (5:6:5) */
static void rgb_byte565(void *dst, int rgb)
{
    /* 5-bit, 6-bits, 5-bits */
    *((uint16_t *) dst) = RED(rgb, 5) << 11 | GREEN(rgb, 6) << 5 | BLUE(rgb,        5);
}
 
/** 16-bit depth (5:6:5) */
static int byte565_rgb(void *src)
{
    int color = *(uint16_t *)(src);
    return (((color >> 11) & 0x1f) << (16 + 3)) | (((color >> 5) & 0x3f) <<
        (8 + 2)) | ((color & 0x1f) << 3);
}
 
/** Put pixel - 8-bit depth (color palette/3:2:3)
 *
 * Even though we try 3:2:3 color scheme here, an 8-bit framebuffer
 * will most likely use a color palette. The color appearance
 * will be pretty random and depend on the default installed
 * palette. This could be fixed by supporting custom palette
 * and setting it to simulate the 8-bit truecolor.
 */
static void rgb_byte8(void *dst, int rgb)
{
    *((uint8_t *) dst) = RED(rgb, 3) << 5 | GREEN(rgb, 2) << 3 | BLUE(rgb,
        3);
}
 
/** Return pixel color - 8-bit depth (color palette/3:2:3)
 *
 * See the comment for rgb_byte().
 */
static int byte8_rgb(void *src)
{
    int color = *(uint8_t *)src;
    return (((color >> 5) & 0x7) << (16 + 5)) | (((color >> 3) & 0x3) << (8
        + 6)) | ((color & 0x7) << 5);
}
 
static void putpixel(unsigned int x, unsigned int y, int color)
{
    (*rgb2scr)(&fbaddress[POINTPOS(x, y)], COLOR(color));
 
    if (dbbuffer) {
        int dline = (y + dboffset) % yres;
        (*rgb2scr)(&dbbuffer[POINTPOS(x, dline)], COLOR(color));
    }
}
 
/** Get pixel from viewport */
static int getpixel(unsigned int x, unsigned int y)
{
    if (dbbuffer) {
        int dline = (y + dboffset) % yres;
        return COLOR((*scr2rgb)(&dbbuffer[POINTPOS(x, dline)]));
    }
    return COLOR((*scr2rgb)(&fbaddress[POINTPOS(x, y)]));
}
 
 
/** Fill screen with background color */
static void clear_screen(void)
{
    unsigned int y;
 
    for (y = 0; y < yres; y++) {
        memcpy(&fbaddress[scanline * y], blankline, xres * pixelbytes);
        if (dbbuffer)
            memcpy(&dbbuffer[scanline * y], blankline, xres *
                pixelbytes);
    }
}
 
 
/** Scroll screen one row up */
static void scroll_screen(void)
{
 
 
 
    if (dbbuffer) {
        count_t first;
       
        memcpy(&dbbuffer[dboffset * scanline], blankline, ROW_BYTES);
       
        dboffset = (dboffset + FONT_SCANLINES) % yres;
        first = yres - dboffset;
 
        memcpy(fbaddress, &dbbuffer[scanline * dboffset], first *
            scanline);
        memcpy(&fbaddress[first * scanline], dbbuffer, dboffset *
            scanline);
    } else {
        uint8_t *lastline = &fbaddress[(rows - 1) * ROW_BYTES];
       
        memcpy((void *) fbaddress, (void *) &fbaddress[ROW_BYTES],
            scanline * yres - ROW_BYTES);
        /* Clear last row */
        memcpy((void *) lastline, (void *) blankline, 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(uint8_t 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,
                    COLOR(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 scan   Bytes per one scanline
 * @param visual Color model
 *
 */
void fb_init(uintptr_t addr, unsigned int x, unsigned int y, unsigned int scan,
    unsigned int visual)
{
    switch (visual) {
    case VISUAL_INDIRECT_8:
        rgb2scr = rgb_byte8;
        scr2rgb = byte8_rgb;
        pixelbytes = 1;
        break;
    case VISUAL_RGB_5_5_5:
        rgb2scr = rgb_byte555;
        scr2rgb = byte555_rgb;
        pixelbytes = 2;
        break;
    case VISUAL_RGB_5_6_5:
        rgb2scr = rgb_byte565;
        scr2rgb = byte565_rgb;
        pixelbytes = 2;
        break;
    case VISUAL_RGB_8_8_8:
        rgb2scr = rgb_byte888;
        scr2rgb = byte888_rgb;
        pixelbytes = 3;
        break;
    case VISUAL_RGB_8_8_8_0:
        rgb2scr = rgb_byte888;
        scr2rgb = byte888_rgb;
        pixelbytes = 4;
        break;
    case VISUAL_RGB_0_8_8_8:
        rgb2scr = rgb_byte0888;
        scr2rgb = byte0888_rgb;
        pixelbytes = 4;
        break;
    case VISUAL_BGR_0_8_8_8:
        rgb2scr = bgr_byte0888;
        scr2rgb = byte0888_bgr;
        pixelbytes = 4;
        break;
    default:
        panic("Unsupported visual.\n");
    }
   
    unsigned int fbsize = scan * y;
   
    /* Map the framebuffer */
    fbaddress = (uint8_t *) hw_map((uintptr_t) addr, fbsize);
   
    xres = x;
    yres = y;
    scanline = scan;
   
    rows = y / FONT_SCANLINES;
    columns = x / COL_WIDTH;
 
    fb_parea.pbase = (uintptr_t) addr;
    fb_parea.vbase = (uintptr_t) fbaddress;
    fb_parea.frames = SIZE2FRAMES(fbsize);
    fb_parea.cacheable = false;
    ddi_parea_register(&fb_parea);
 
    sysinfo_set_item_val("fb", NULL, true);
    sysinfo_set_item_val("fb.kind", NULL, 1);
    sysinfo_set_item_val("fb.width", NULL, xres);
    sysinfo_set_item_val("fb.height", NULL, yres);
    sysinfo_set_item_val("fb.scanline", NULL, scan);
    sysinfo_set_item_val("fb.visual", NULL, visual);
    sysinfo_set_item_val("fb.address.physical", NULL, addr);
    sysinfo_set_item_val("fb.address.color", NULL, PAGE_COLOR((uintptr_t)
        fbaddress));
    sysinfo_set_item_val("fb.invert-colors", NULL, invert_colors);
 
    /* Allocate double buffer */
    unsigned int order = fnzb(SIZE2FRAMES(fbsize) - 1) + 1;
    dbbuffer = (uint8_t *) frame_alloc(order, FRAME_ATOMIC | FRAME_KA);
    if (!dbbuffer)
        printf("Failed to allocate scroll buffer.\n");
    dboffset = 0;
 
    /* Initialized blank line */
    blankline = (uint8_t *) malloc(ROW_BYTES, FRAME_ATOMIC);
    if (!blankline)
        panic("Failed to allocate blank line for framebuffer.");
    for (y = 0; y < FONT_SCANLINES; y++)
        for (x = 0; x < xres; x++)
            (*rgb2scr)(&blankline[POINTPOS(x, y)], COLOR(BGCOLOR));
   
    clear_screen();
 
    /* Update size of screen to match text area */
    yres = rows * FONT_SCANLINES;
 
    draw_logo(xres - helenos_width, 0);
    invert_cursor();
 
    chardev_initialize("fb", &framebuffer, &fb_ops);
    stdout = &framebuffer;
}
 
/** @}
 */
 

Rev 2015	Rev 2054
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	/** @addtogroup genarch	29	/** @addtogroup genarch
30	* @{	30	* @{
31	*/	31	*/
32	/** @file	32	/** @file
33	*/	33	*/
34		34
35	#include <genarch/fb/font-8x16.h>	35	#include <genarch/fb/font-8x16.h>
36	#include <genarch/fb/visuals.h>	36	#include <genarch/fb/visuals.h>
37	#include <genarch/fb/fb.h>	37	#include <genarch/fb/fb.h>
38	#include <console/chardev.h>	38	#include <console/chardev.h>
39	#include <console/console.h>	39	#include <console/console.h>
40	#include <sysinfo/sysinfo.h>	40	#include <sysinfo/sysinfo.h>
41	#include <mm/slab.h>	41	#include <mm/slab.h>
42	#include <align.h>	-
43	#include <panic.h>	42	#include <panic.h>
44	#include <memstr.h>	43	#include <memstr.h>
45	#include <config.h>	44	#include <config.h>
46	#include <bitops.h>	45	#include <bitops.h>
47	#include <print.h>	46	#include <print.h>
48	#include <ddi/ddi.h>	47	#include <ddi/ddi.h>
-		48	#include <arch/types.h>
-		49	#include <typedefs.h>
49		50
50	#include "helenos.xbm"	51	#include "helenos.xbm"
51		52
52	static parea_t fb_parea; /*< Physical memory area for fb. /	53	static parea_t fb_parea; /*< Physical memory area for fb. /
53		54
54	SPINLOCK_INITIALIZE(fb_lock);	55	SPINLOCK_INITIALIZE(fb_lock);
55		56
56	static uint8_t *fbaddress = NULL;	57	static uint8_t *fbaddress = NULL;
57		58
58	static uint8_t *blankline = NULL;	59	static uint8_t *blankline = NULL;
59	static uint8_t dbbuffer = NULL; / Buffer for fast scrolling console */	60	static uint8_t dbbuffer = NULL; / Buffer for fast scrolling console */
60	static int dboffset;	61	static index_t dboffset;
61		62
62	static unsigned int xres = 0;	63	static unsigned int xres = 0;
63	static unsigned int yres = 0;	64	static unsigned int yres = 0;
64	static unsigned int scanline = 0;	65	static unsigned int scanline = 0;
65	static unsigned int pixelbytes = 0;	66	static unsigned int pixelbytes = 0;
66	#ifdef FB_INVERT_COLORS	67	#ifdef FB_INVERT_COLORS
67	static bool invert_colors = true;	68	static bool invert_colors = true;
68	#else	69	#else
69	static bool invert_colors = false;	70	static bool invert_colors = false;
70	#endif	71	#endif
71		72
72	static unsigned int position = 0;	73	static unsigned int position = 0;
73	static unsigned int columns = 0;	74	static unsigned int columns = 0;
74	static unsigned int rows = 0;	75	static unsigned int rows = 0;
75		76
76	#define COL_WIDTH 8	77	#define COL_WIDTH 8
77	#define ROW_BYTES (scanline * FONT_SCANLINES)	78	#define ROW_BYTES (scanline * FONT_SCANLINES)
78		79
79	#define BGCOLOR 0x000080	80	#define BGCOLOR 0x000080
80	#define FGCOLOR 0xffff00	81	#define FGCOLOR 0xffff00
81	#define LOGOCOLOR 0x2020b0	82	#define LOGOCOLOR 0x2020b0
82		83
83	#define RED(x, bits) ((x >> (16 + 8 - bits)) & ((1 << bits) - 1))	84	#define RED(x, bits) ((x >> (16 + 8 - bits)) & ((1 << bits) - 1))
84	#define GREEN(x, bits) ((x >> (8 + 8 - bits)) & ((1 << bits) - 1))	85	#define GREEN(x, bits) ((x >> (8 + 8 - bits)) & ((1 << bits) - 1))
85	#define BLUE(x, bits) ((x >> (8 - bits)) & ((1 << bits) - 1))	86	#define BLUE(x, bits) ((x >> (8 - bits)) & ((1 << bits) - 1))
86		87
87	#define POINTPOS(x, y) ((y) * scanline + (x) * pixelbytes)	88	#define POINTPOS(x, y) ((y) * scanline + (x) * pixelbytes)
88		89
89	/***************************************************************/	90	/***************************************************************/
90	/* Pixel specific fuctions */	91	/* Pixel specific fuctions */
91		92
92	static void (rgb2scr)(void , int);	93	static void (rgb2scr)(void , int);
93	static int (scr2rgb)(void );	94	static int (scr2rgb)(void );
94		95
95	static inline int COLOR(int color)	96	static inline int COLOR(int color)
96	{	97	{
97	return invert_colors ? ~color : color;	98	return invert_colors ? ~color : color;
98	}	99	}
99		100
100	/* Conversion routines between different color representations */	101	/* Conversion routines between different color representations */
101	static void rgb_byte0888(void *dst, int rgb)	102	static void rgb_byte0888(void *dst, int rgb)
102	{	103	{
103	((int ) dst) = rgb;	104	((int ) dst) = rgb;
104	}	105	}
105		106
106	static int byte0888_rgb(void *src)	107	static int byte0888_rgb(void *src)
107	{	108	{
108	return (((int ) src)) & 0xffffff;	109	return (((int ) src)) & 0xffffff;
109	}	110	}
110		111
111	static void bgr_byte0888(void *dst, int rgb)	112	static void bgr_byte0888(void *dst, int rgb)
112	{	113	{
113	((uint32_t ) dst) = BLUE(rgb, 8) << 16 \| GREEN(rgb, 8) << 8 \| RED(rgb, 8);	114	((uint32_t ) dst) = BLUE(rgb, 8) << 16 \| GREEN(rgb, 8) << 8 \| RED(rgb,
-		115	8);
114	}	116	}
115		117
116	static int byte0888_bgr(void *src)	118	static int byte0888_bgr(void *src)
117	{	119	{
118	int color = (uint32_t )(src);	120	int color = (uint32_t )(src);
119	return ((color & 0xff) << 16) \| (((color >> 8) & 0xff) << 8) \| ((color >> 16) & 0xff);	121	return ((color & 0xff) << 16) \| (((color >> 8) & 0xff) << 8) \| ((color
-		122	>> 16) & 0xff);
120	}	123	}
121		124
122	static void rgb_byte888(void *dst, int rgb)	125	static void rgb_byte888(void *dst, int rgb)
123	{	126	{
124	uint8_t *scr = dst;	127	uint8_t *scr = dst;
125	#if defined(FB_INVERT_ENDIAN)	128	#if defined(FB_INVERT_ENDIAN)
126	scr[0] = RED(rgb, 8);	129	scr[0] = RED(rgb, 8);
127	scr[1] = GREEN(rgb, 8);	130	scr[1] = GREEN(rgb, 8);
128	scr[2] = BLUE(rgb, 8);	131	scr[2] = BLUE(rgb, 8);
129	#else	132	#else
130	scr[2] = RED(rgb, 8);	133	scr[2] = RED(rgb, 8);
131	scr[1] = GREEN(rgb, 8);	134	scr[1] = GREEN(rgb, 8);
132	scr[0] = BLUE(rgb, 8);	135	scr[0] = BLUE(rgb, 8);
133	#endif	136	#endif
134	}	137	}
135		138
136	static int byte888_rgb(void *src)	139	static int byte888_rgb(void *src)
137	{	140	{
138	uint8_t *scr = src;	141	uint8_t *scr = src;
139	#if defined(FB_INVERT_ENDIAN)	142	#if defined(FB_INVERT_ENDIAN)
140	return scr[0] << 16 \| scr[1] << 8 \| scr[2];	143	return scr[0] << 16 \| scr[1] << 8 \| scr[2];
141	#else	144	#else
142	return scr[2] << 16 \| scr[1] << 8 \| scr[0];	145	return scr[2] << 16 \| scr[1] << 8 \| scr[0];
143	#endif	146	#endif
144	}	147	}
145		148
146	/** 16-bit depth (5:5:5) */	149	/** 16-bit depth (5:5:5) */
147	static void rgb_byte555(void *dst, int rgb)	150	static void rgb_byte555(void *dst, int rgb)
148	{	151	{
149	/* 5-bit, 5-bits, 5-bits */	152	/* 5-bit, 5-bits, 5-bits */
150	((uint16_t ) dst) = RED(rgb, 5) << 10 \| GREEN(rgb, 5) << 5 \| BLUE(rgb, 5);	153	((uint16_t ) dst) = RED(rgb, 5) << 10 \| GREEN(rgb, 5) << 5 \| BLUE(rgb,
-		154	5);
151	}	155	}
152		156
153	/** 16-bit depth (5:5:5) */	157	/** 16-bit depth (5:5:5) */
154	static int byte555_rgb(void *src)	158	static int byte555_rgb(void *src)
155	{	159	{
156	int color = (uint16_t )(src);	160	int color = (uint16_t )(src);
157	return (((color >> 10) & 0x1f) << (16 + 3)) \| (((color >> 5) & 0x1f) << (8 + 3)) \| ((color & 0x1f) << 3);	161	return (((color >> 10) & 0x1f) << (16 + 3)) \| (((color >> 5) & 0x1f) <<
-		162	(8 + 3)) \| ((color & 0x1f) << 3);
158	}	163	}
159		164
160	/** 16-bit depth (5:6:5) */	165	/** 16-bit depth (5:6:5) */
161	static void rgb_byte565(void *dst, int rgb)	166	static void rgb_byte565(void *dst, int rgb)
162	{	167	{
163	/* 5-bit, 6-bits, 5-bits */	168	/* 5-bit, 6-bits, 5-bits */
164	((uint16_t ) dst) = RED(rgb, 5) << 11 \| GREEN(rgb, 6) << 5 \| BLUE(rgb, 5);	169	((uint16_t ) dst) = RED(rgb, 5) << 11 \| GREEN(rgb, 6) << 5 \| BLUE(rgb, 5);
165	}	170	}
166		171
167	/** 16-bit depth (5:6:5) */	172	/** 16-bit depth (5:6:5) */
168	static int byte565_rgb(void *src)	173	static int byte565_rgb(void *src)
169	{	174	{
170	int color = (uint16_t )(src);	175	int color = (uint16_t )(src);
171	return (((color >> 11) & 0x1f) << (16 + 3)) \| (((color >> 5) & 0x3f) << (8 + 2)) \| ((color & 0x1f) << 3);	176	return (((color >> 11) & 0x1f) << (16 + 3)) \| (((color >> 5) & 0x3f) <<
-		177	(8 + 2)) \| ((color & 0x1f) << 3);
172	}	178	}
173		179
174	/** Put pixel - 8-bit depth (color palette/3:2:3)	180	/** Put pixel - 8-bit depth (color palette/3:2:3)
175	*	181	*
176	* Even though we try 3:2:3 color scheme here, an 8-bit framebuffer	182	* Even though we try 3:2:3 color scheme here, an 8-bit framebuffer
177	* will most likely use a color palette. The color appearance	183	* will most likely use a color palette. The color appearance
178	* will be pretty random and depend on the default installed	184	* will be pretty random and depend on the default installed
179	* palette. This could be fixed by supporting custom palette	185	* palette. This could be fixed by supporting custom palette
180	* and setting it to simulate the 8-bit truecolor.	186	* and setting it to simulate the 8-bit truecolor.
181	*/	187	*/
182	static void rgb_byte8(void *dst, int rgb)	188	static void rgb_byte8(void *dst, int rgb)
183	{	189	{
184	((uint8_t ) dst) = RED(rgb, 3) << 5 \| GREEN(rgb, 2) << 3 \| BLUE(rgb, 3);	190	((uint8_t ) dst) = RED(rgb, 3) << 5 \| GREEN(rgb, 2) << 3 \| BLUE(rgb,
-		191	3);
185	}	192	}
186		193
187	/** Return pixel color - 8-bit depth (color palette/3:2:3)	194	/** Return pixel color - 8-bit depth (color palette/3:2:3)
188	*	195	*
189	* See the comment for rgb_byte().	196	* See the comment for rgb_byte().
190	*/	197	*/
191	static int byte8_rgb(void *src)	198	static int byte8_rgb(void *src)
192	{	199	{
193	int color = (uint8_t )src;	200	int color = (uint8_t )src;
194	return (((color >> 5) & 0x7) << (16 + 5)) \| (((color >> 3) & 0x3) << (8 + 6)) \| ((color & 0x7) << 5);	201	return (((color >> 5) & 0x7) << (16 + 5)) \| (((color >> 3) & 0x3) << (8
-		202	+ 6)) \| ((color & 0x7) << 5);
195	}	203	}
196		204
197	static void putpixel(unsigned int x, unsigned int y, int color)	205	static void putpixel(unsigned int x, unsigned int y, int color)
198	{	206	{
199	(*rgb2scr)(&fbaddress[POINTPOS(x, y)], COLOR(color));	207	(*rgb2scr)(&fbaddress[POINTPOS(x, y)], COLOR(color));
200		208
201	if (dbbuffer) {	209	if (dbbuffer) {
202	int dline = (y + dboffset) % yres;	210	int dline = (y + dboffset) % yres;
203	(*rgb2scr)(&dbbuffer[POINTPOS(x, dline)], COLOR(color));	211	(*rgb2scr)(&dbbuffer[POINTPOS(x, dline)], COLOR(color));
204	}	212	}
205	}	213	}
206		214
207	/** Get pixel from viewport */	215	/** Get pixel from viewport */
208	static int getpixel(unsigned int x, unsigned int y)	216	static int getpixel(unsigned int x, unsigned int y)
209	{	217	{
210	if (dbbuffer) {	218	if (dbbuffer) {
211	int dline = (y + dboffset) % yres;	219	int dline = (y + dboffset) % yres;
212	return COLOR((*scr2rgb)(&dbbuffer[POINTPOS(x, dline)]));	220	return COLOR((*scr2rgb)(&dbbuffer[POINTPOS(x, dline)]));
213	}	221	}
214	return COLOR((*scr2rgb)(&fbaddress[POINTPOS(x, y)]));	222	return COLOR((*scr2rgb)(&fbaddress[POINTPOS(x, y)]));
215	}	223	}
216		224
217		225
218	/** Fill screen with background color */	226	/** Fill screen with background color */
219	static void clear_screen(void)	227	static void clear_screen(void)
220	{	228	{
221	unsigned int y;	229	unsigned int y;
222		230
223	for (y = 0; y < yres; y++) {	231	for (y = 0; y < yres; y++) {
224	memcpy(&fbaddress[scanline * y], blankline, xres * pixelbytes);	232	memcpy(&fbaddress[scanline * y], blankline, xres * pixelbytes);
225	if (dbbuffer)	233	if (dbbuffer)
226	memcpy(&dbbuffer[scanline * y], blankline, xres * pixelbytes);	234	memcpy(&dbbuffer[scanline * y], blankline, xres *
-		235	pixelbytes);
227	}	236	}
228	}	237	}
229		238
230		239
231	/** Scroll screen one row up */	240	/** Scroll screen one row up */
232	static void scroll_screen(void)	241	static void scroll_screen(void)
233	{	242	{
234	uint8_t lastline = &fbaddress[(rows - 1) ROW_BYTES];	-
235	int firstsz;	-
236		-
237	if (dbbuffer) {	243	if (dbbuffer) {
-		244	count_t first;
-		245
238	memcpy(&dbbuffer[dboffset * scanline], blankline, ROW_BYTES);	246	memcpy(&dbbuffer[dboffset * scanline], blankline, ROW_BYTES);
239		247
240	dboffset = (dboffset + FONT_SCANLINES) % yres;	248	dboffset = (dboffset + FONT_SCANLINES) % yres;
241	firstsz = yres - dboffset;	249	first = yres - dboffset;
242		250
243	memcpy(fbaddress, &dbbuffer[scanline * dboffset], firstsz * scanline);	251	memcpy(fbaddress, &dbbuffer[scanline * dboffset], first *
-		252	scanline);
244	memcpy(&fbaddress[firstsz * scanline], dbbuffer, dboffset * scanline);	253	memcpy(&fbaddress[first * scanline], dbbuffer, dboffset *
-		254	scanline);
245	} else {	255	} else {
-		256	uint8_t lastline = &fbaddress[(rows - 1) ROW_BYTES];
-		257
246	memcpy((void ) fbaddress, (void ) &fbaddress[ROW_BYTES], scanline * yres - ROW_BYTES);	258	memcpy((void ) fbaddress, (void ) &fbaddress[ROW_BYTES],
-		259	scanline * yres - ROW_BYTES);
247	/* Clear last row */	260	/* Clear last row */
248	memcpy((void ) lastline, (void ) blankline, ROW_BYTES);	261	memcpy((void ) lastline, (void ) blankline, ROW_BYTES);
249	}	262	}
250	}	263	}
251		264
252		265
253	static void invert_pixel(unsigned int x, unsigned int y)	266	static void invert_pixel(unsigned int x, unsigned int y)
254	{	267	{
255	putpixel(x, y, ~getpixel(x, y));	268	putpixel(x, y, ~getpixel(x, y));
256	}	269	}
257		270
258		271
259	/** Draw one line of glyph at a given position */	272	/** Draw one line of glyph at a given position */
260	static void draw_glyph_line(unsigned int glline, unsigned int x, unsigned int y)	273	static void draw_glyph_line(unsigned int glline, unsigned int x, unsigned int y)
261	{	274	{
262	unsigned int i;	275	unsigned int i;
263		276
264	for (i = 0; i < 8; i++)	277	for (i = 0; i < 8; i++)
265	if (glline & (1 << (7 - i))) {	278	if (glline & (1 << (7 - i))) {
266	putpixel(x + i, y, FGCOLOR);	279	putpixel(x + i, y, FGCOLOR);
267	} else	280	} else
268	putpixel(x + i, y, BGCOLOR);	281	putpixel(x + i, y, BGCOLOR);
269	}	282	}
270		283
271	/***************************************************************/	284	/***************************************************************/
272	/* Character-console functions */	285	/* Character-console functions */
273		286
274	/** Draw character at given position */	287	/** Draw character at given position */
275	static void draw_glyph(uint8_t glyph, unsigned int col, unsigned int row)	288	static void draw_glyph(uint8_t glyph, unsigned int col, unsigned int row)
276	{	289	{
277	unsigned int y;	290	unsigned int y;
278		291
279	for (y = 0; y < FONT_SCANLINES; y++)	292	for (y = 0; y < FONT_SCANLINES; y++)
280	draw_glyph_line(fb_font[glyph * FONT_SCANLINES + y], col * COL_WIDTH, row * FONT_SCANLINES + y);	293	draw_glyph_line(fb_font[glyph * FONT_SCANLINES + y], col *
-		294	COL_WIDTH, row * FONT_SCANLINES + y);
281	}	295	}
282		296
283	/** Invert character at given position */	297	/** Invert character at given position */
284	static void invert_char(unsigned int col, unsigned int row)	298	static void invert_char(unsigned int col, unsigned int row)
285	{	299	{
286	unsigned int x;	300	unsigned int x;
287	unsigned int y;	301	unsigned int y;
288		302
289	for (x = 0; x < COL_WIDTH; x++)	303	for (x = 0; x < COL_WIDTH; x++)
290	for (y = 0; y < FONT_SCANLINES; y++)	304	for (y = 0; y < FONT_SCANLINES; y++)
291	invert_pixel(col * COL_WIDTH + x, row * FONT_SCANLINES + y);	305	invert_pixel(col * COL_WIDTH + x, row * FONT_SCANLINES +
-		306	y);
292	}	307	}
293		308
294	/** Draw character at default position */	309	/** Draw character at default position */
295	static void draw_char(char chr)	310	static void draw_char(char chr)
296	{	311	{
297	draw_glyph(chr, position % columns, position / columns);	312	draw_glyph(chr, position % columns, position / columns);
298	}	313	}
299		314
300	static void draw_logo(unsigned int startx, unsigned int starty)	315	static void draw_logo(unsigned int startx, unsigned int starty)
301	{	316	{
302	unsigned int x;	317	unsigned int x;
303	unsigned int y;	318	unsigned int y;
304	unsigned int byte;	319	unsigned int byte;
305	unsigned int rowbytes;	320	unsigned int rowbytes;
306		321
307	rowbytes = (helenos_width - 1) / 8 + 1;	322	rowbytes = (helenos_width - 1) / 8 + 1;
308		323
309	for (y = 0; y < helenos_height; y++)	324	for (y = 0; y < helenos_height; y++)
310	for (x = 0; x < helenos_width; x++) {	325	for (x = 0; x < helenos_width; x++) {
311	byte = helenos_bits[rowbytes * y + x / 8];	326	byte = helenos_bits[rowbytes * y + x / 8];
312	byte >>= x % 8;	327	byte >>= x % 8;
313	if (byte & 1)	328	if (byte & 1)
314	putpixel(startx + x, starty + y, COLOR(LOGOCOLOR));	329	putpixel(startx + x, starty + y,
-		330	COLOR(LOGOCOLOR));
315	}	331	}
316	}	332	}
317		333
318	/***************************************************************/	334	/***************************************************************/
319	/* Stdout specific functions */	335	/* Stdout specific functions */
320		336
321	static void invert_cursor(void)	337	static void invert_cursor(void)
322	{	338	{
323	invert_char(position % columns, position / columns);	339	invert_char(position % columns, position / columns);
324	}	340	}
325		341
326	/** Print character to screen	342	/** Print character to screen
327	*	343	*
328	* Emulate basic terminal commands	344	* Emulate basic terminal commands
329	*/	345	*/
330	static void fb_putchar(chardev_t *dev, char ch)	346	static void fb_putchar(chardev_t *dev, char ch)
331	{	347	{
332	spinlock_lock(&fb_lock);	348	spinlock_lock(&fb_lock);
333		349
334	switch (ch) {	350	switch (ch) {
335	case '\n':	351	case '\n':
336	invert_cursor();	352	invert_cursor();
337	position += columns;	353	position += columns;
338	position -= position % columns;	354	position -= position % columns;
339	break;	355	break;
340	case '\r':	356	case '\r':
341	invert_cursor();	357	invert_cursor();
342	position -= position % columns;	358	position -= position % columns;
343	break;	359	break;
344	case '\b':	360	case '\b':
345	invert_cursor();	361	invert_cursor();
346	if (position % columns)	362	if (position % columns)
347	position--;	363	position--;
348	break;	364	break;
349	case '\t':	365	case '\t':
350	invert_cursor();	366	invert_cursor();
351	do {	367	do {
352	draw_char(' ');	368	draw_char(' ');
353	position++;	369	position++;
354	} while ((position % 8) && position < columns * rows);	370	} while ((position % 8) && position < columns * rows);
355	break;	371	break;
356	default:	372	default:
357	draw_char(ch);	373	draw_char(ch);
358	position++;	374	position++;
359	}	375	}
360		376
361	if (position >= columns * rows) {	377	if (position >= columns * rows) {
362	position -= columns;	378	position -= columns;
363	scroll_screen();	379	scroll_screen();
364	}	380	}
365		381
366	invert_cursor();	382	invert_cursor();
367		383
368	spinlock_unlock(&fb_lock);	384	spinlock_unlock(&fb_lock);
369	}	385	}
370		386
371	static chardev_t framebuffer;	387	static chardev_t framebuffer;
372	static chardev_operations_t fb_ops = {	388	static chardev_operations_t fb_ops = {
373	.write = fb_putchar,	389	.write = fb_putchar,
374	};	390	};
375		391
376		392
377	/** Initialize framebuffer as a chardev output device	393	/** Initialize framebuffer as a chardev output device
378	*	394	*
379	* @param addr Physical address of the framebuffer	395	* @param addr Physical address of the framebuffer
380	* @param x Screen width in pixels	396	* @param x Screen width in pixels
381	* @param y Screen height in pixels	397	* @param y Screen height in pixels
382	* @param scan Bytes per one scanline	398	* @param scan Bytes per one scanline
383	* @param visual Color model	399	* @param visual Color model
384	*	400	*
385	*/	401	*/
386	void fb_init(uintptr_t addr, unsigned int x, unsigned int y, unsigned int scan, unsigned int visual)	402	void fb_init(uintptr_t addr, unsigned int x, unsigned int y, unsigned int scan,
-		403	unsigned int visual)
387	{	404	{
388	switch (visual) {	405	switch (visual) {
389	case VISUAL_INDIRECT_8:	406	case VISUAL_INDIRECT_8:
390	rgb2scr = rgb_byte8;	407	rgb2scr = rgb_byte8;
391	scr2rgb = byte8_rgb;	408	scr2rgb = byte8_rgb;
392	pixelbytes = 1;	409	pixelbytes = 1;
393	break;	410	break;
394	case VISUAL_RGB_5_5_5:	411	case VISUAL_RGB_5_5_5:
395	rgb2scr = rgb_byte555;	412	rgb2scr = rgb_byte555;
396	scr2rgb = byte555_rgb;	413	scr2rgb = byte555_rgb;
397	pixelbytes = 2;	414	pixelbytes = 2;
398	break;	415	break;
399	case VISUAL_RGB_5_6_5:	416	case VISUAL_RGB_5_6_5:
400	rgb2scr = rgb_byte565;	417	rgb2scr = rgb_byte565;
401	scr2rgb = byte565_rgb;	418	scr2rgb = byte565_rgb;
402	pixelbytes = 2;	419	pixelbytes = 2;
403	break;	420	break;
404	case VISUAL_RGB_8_8_8:	421	case VISUAL_RGB_8_8_8:
405	rgb2scr = rgb_byte888;	422	rgb2scr = rgb_byte888;
406	scr2rgb = byte888_rgb;	423	scr2rgb = byte888_rgb;
407	pixelbytes = 3;	424	pixelbytes = 3;
408	break;	425	break;
409	case VISUAL_RGB_8_8_8_0:	426	case VISUAL_RGB_8_8_8_0:
410	rgb2scr = rgb_byte888;	427	rgb2scr = rgb_byte888;
411	scr2rgb = byte888_rgb;	428	scr2rgb = byte888_rgb;
412	pixelbytes = 4;	429	pixelbytes = 4;
413	break;	430	break;
414	case VISUAL_RGB_0_8_8_8:	431	case VISUAL_RGB_0_8_8_8:
415	rgb2scr = rgb_byte0888;	432	rgb2scr = rgb_byte0888;
416	scr2rgb = byte0888_rgb;	433	scr2rgb = byte0888_rgb;
417	pixelbytes = 4;	434	pixelbytes = 4;
418	break;	435	break;
419	case VISUAL_BGR_0_8_8_8:	436	case VISUAL_BGR_0_8_8_8:
420	rgb2scr = bgr_byte0888;	437	rgb2scr = bgr_byte0888;
421	scr2rgb = byte0888_bgr;	438	scr2rgb = byte0888_bgr;
422	pixelbytes = 4;	439	pixelbytes = 4;
423	break;	440	break;
424	default:	441	default:
425	panic("Unsupported visual.\n");	442	panic("Unsupported visual.\n");
426	}	443	}
427		444
428	unsigned int fbsize = scan * y;	445	unsigned int fbsize = scan * y;
429		446
430	/* Map the framebuffer */	447	/* Map the framebuffer */
431	fbaddress = (uint8_t *) hw_map((uintptr_t) addr, fbsize);	448	fbaddress = (uint8_t *) hw_map((uintptr_t) addr, fbsize);
432		449
433	xres = x;	450	xres = x;
434	yres = y;	451	yres = y;
435	scanline = scan;	452	scanline = scan;
436		453
437	rows = y / FONT_SCANLINES;	454	rows = y / FONT_SCANLINES;
438	columns = x / COL_WIDTH;	455	columns = x / COL_WIDTH;
439		456
440	fb_parea.pbase = (uintptr_t) addr;	457	fb_parea.pbase = (uintptr_t) addr;
441	fb_parea.vbase = (uintptr_t) fbaddress;	458	fb_parea.vbase = (uintptr_t) fbaddress;
442	fb_parea.frames = SIZE2FRAMES(fbsize);	459	fb_parea.frames = SIZE2FRAMES(fbsize);
443	fb_parea.cacheable = false;	460	fb_parea.cacheable = false;
444	ddi_parea_register(&fb_parea);	461	ddi_parea_register(&fb_parea);
445		462
446	sysinfo_set_item_val("fb", NULL, true);	463	sysinfo_set_item_val("fb", NULL, true);
447	sysinfo_set_item_val("fb.kind", NULL, 1);	464	sysinfo_set_item_val("fb.kind", NULL, 1);
448	sysinfo_set_item_val("fb.width", NULL, xres);	465	sysinfo_set_item_val("fb.width", NULL, xres);
449	sysinfo_set_item_val("fb.height", NULL, yres);	466	sysinfo_set_item_val("fb.height", NULL, yres);
450	sysinfo_set_item_val("fb.scanline", NULL, scan);	467	sysinfo_set_item_val("fb.scanline", NULL, scan);
451	sysinfo_set_item_val("fb.visual", NULL, visual);	468	sysinfo_set_item_val("fb.visual", NULL, visual);
452	sysinfo_set_item_val("fb.address.physical", NULL, addr);	469	sysinfo_set_item_val("fb.address.physical", NULL, addr);
453	sysinfo_set_item_val("fb.address.color", NULL, PAGE_COLOR((uintptr_t)	470	sysinfo_set_item_val("fb.address.color", NULL, PAGE_COLOR((uintptr_t)
454	fbaddress));	471	fbaddress));
455	sysinfo_set_item_val("fb.invert-colors", NULL, invert_colors);	472	sysinfo_set_item_val("fb.invert-colors", NULL, invert_colors);
456		473
457	/* Allocate double buffer */	474	/* Allocate double buffer */
458	unsigned int order = fnzb(SIZE2FRAMES(ALIGN_UP(fbsize, FRAME_SIZE))) + 1;	475	unsigned int order = fnzb(SIZE2FRAMES(fbsize) - 1) + 1;
459	dbbuffer = (uint8_t * ) frame_alloc(order, FRAME_ATOMIC \| FRAME_KA);	476	dbbuffer = (uint8_t *) frame_alloc(order, FRAME_ATOMIC \| FRAME_KA);
460	if (!dbbuffer)	477	if (!dbbuffer)
461	printf("Failed to allocate scroll buffer.\n");	478	printf("Failed to allocate scroll buffer.\n");
462	dboffset = 0;	479	dboffset = 0;
463		480
464	/* Initialized blank line */	481	/* Initialized blank line */
465	blankline = (uint8_t *) malloc(ROW_BYTES, FRAME_ATOMIC);	482	blankline = (uint8_t *) malloc(ROW_BYTES, FRAME_ATOMIC);
466	if (!blankline)	483	if (!blankline)
467	panic("Failed to allocate blank line for framebuffer.");	484	panic("Failed to allocate blank line for framebuffer.");
468	for (y = 0; y < FONT_SCANLINES; y++)	485	for (y = 0; y < FONT_SCANLINES; y++)
469	for (x = 0; x < xres; x++)	486	for (x = 0; x < xres; x++)
470	(*rgb2scr)(&blankline[POINTPOS(x, y)], COLOR(BGCOLOR));	487	(*rgb2scr)(&blankline[POINTPOS(x, y)], COLOR(BGCOLOR));
471		488
472	clear_screen();	489	clear_screen();
473		490
474	/* Update size of screen to match text area */	491	/* Update size of screen to match text area */
475	yres = rows * FONT_SCANLINES;	492	yres = rows * FONT_SCANLINES;
476		493
477	draw_logo(xres - helenos_width, 0);	494	draw_logo(xres - helenos_width, 0);
478	invert_cursor();	495	invert_cursor();
479		496

Subversion Repositories HelenOS

(root)/trunk/kernel/genarch/src/fb/fb.c @ 2077 – Rev 2015 → 2054