WebSVN – HelenOS – Diff – /branches/arm/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 "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 >> (8 + 8 + 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 = (uint8_t *) 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 = (uint8_t *) 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  
}
 
static void bgr_byte8880(void *dst, int rgb)
{
    uint8_t *scr = (uint8_t *) dst;
    scr[3] = RED(rgb, 8);
    scr[2] = GREEN(rgb, 8);
    scr[1] = BLUE(rgb, 8);
}
 
static int byte8880_bgr(void *src)
{
    uint8_t *scr = (uint8_t *) src;
    return scr[3] << 16 | scr[2] << 8 | scr[1];
}
 
/**  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;
       
        /* Clear the last row */
        memcpy(&dbbuffer[dboffset * scanline], blankline, ROW_BYTES);
       
        dboffset = (dboffset + FONT_SCANLINES) % yres;
        first = yres - dboffset;
       
        /* Move all rows one row up */
        if (xres * pixelbytes == scanline) {
            memcpy(fbaddress, &dbbuffer[dboffset * scanline],
                first * scanline);
            memcpy(&fbaddress[first * scanline], dbbuffer,
                dboffset * scanline);
        } else {
            /*
             * When the scanline is bigger than number of bytes
             * in the X-resolution, chances are that the
             * frame buffer memory past the X-resolution is special
             * in some way. For example, the SUNW,ffb framebuffer
             * wraps this area around the beginning of the same
             * line. To avoid troubles, copy only memory as
             * specified by the resolution.
             */
            unsigned int i;
 
            for (i = 0; i < first; i++)
                memcpy(&fbaddress[i * scanline],
                    &dbbuffer[(dboffset + i) * scanline],
                    xres * pixelbytes);
            for (i = 0; i < dboffset; i++)
                memcpy(&fbaddress[(first + i) * scanline],
                    &dbbuffer[i * scanline], xres * pixelbytes);
        }
    } else {
        uint8_t *lastline = &fbaddress[(rows - 1) * ROW_BYTES];
       
        if (xres * pixelbytes == scanline) {
            /* Move all rows one row up */
            memcpy((void *) fbaddress,
                (void *) &fbaddress[ROW_BYTES],
                scanline * yres - ROW_BYTES);
            /* Clear the last row */
            memcpy((void *) lastline, (void *) blankline,
                ROW_BYTES);
        } else {
            /*
             * See the comment in the dbbuffer case.
             */
            unsigned int i;
 
            /* Move all rows one row up */
            for (i = 0; i < yres - FONT_SCANLINES; i++)
                memcpy(&fbaddress[i * scanline],
                    &fbaddress[(i + FONT_SCANLINES) * scanline],
                    xres * pixelbytes);
            /* Clear the last row */
            for (i = 0; i < FONT_SCANLINES; i++)
                memcpy(&lastline[i * scanline],
                    &blankline[i * scanline],
                    xres * pixelbytes);
        }
    }
}
 
 
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;
    case VISUAL_BGR_8_8_8_0:
        rgb2scr = bgr_byte8880;
        scr2rgb = byte8880_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.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 3478	Rev 3528
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 <panic.h>	42	#include <panic.h>
43	#include <memstr.h>	43	#include <memstr.h>
44	#include <config.h>	44	#include <config.h>
45	#include <bitops.h>	45	#include <bitops.h>
46	#include <print.h>	46	#include <print.h>
47	#include <ddi/ddi.h>	47	#include <ddi/ddi.h>
48	#include <arch/types.h>	48	#include <arch/types.h>
49		49
50	#include "helenos.xbm"	50	#include "helenos.xbm"
51		51
52	static parea_t fb_parea; /*< Physical memory area for fb. /	52	static parea_t fb_parea; /*< Physical memory area for fb. /
53		53
54	SPINLOCK_INITIALIZE(fb_lock);	54	SPINLOCK_INITIALIZE(fb_lock);
55		55
56	static uint8_t *fbaddress = NULL;	56	static uint8_t *fbaddress = NULL;
57		57
58	static uint8_t *blankline = NULL;	58	static uint8_t *blankline = NULL;
59	static uint8_t dbbuffer = NULL; / Buffer for fast scrolling console */	59	static uint8_t dbbuffer = NULL; / Buffer for fast scrolling console */
60	static index_t dboffset;	60	static index_t dboffset;
61		61
62	static unsigned int xres = 0;	62	static unsigned int xres = 0;
63	static unsigned int yres = 0;	63	static unsigned int yres = 0;
64	static unsigned int scanline = 0;	64	static unsigned int scanline = 0;
65	static unsigned int pixelbytes = 0;	65	static unsigned int pixelbytes = 0;
66	#ifdef FB_INVERT_COLORS	66	#ifdef FB_INVERT_COLORS
67	static bool invert_colors = true;	67	static bool invert_colors = true;
68	#else	68	#else
69	static bool invert_colors = false;	69	static bool invert_colors = false;
70	#endif	70	#endif
71		71
72	static unsigned int position = 0;	72	static unsigned int position = 0;
73	static unsigned int columns = 0;	73	static unsigned int columns = 0;
74	static unsigned int rows = 0;	74	static unsigned int rows = 0;
75		75
76	#define COL_WIDTH 8	76	#define COL_WIDTH 8
77	#define ROW_BYTES (scanline * FONT_SCANLINES)	77	#define ROW_BYTES (scanline * FONT_SCANLINES)
78		78
79	#define BGCOLOR 0x000080	79	#define BGCOLOR 0x000080
80	#define FGCOLOR 0xffff00	80	#define FGCOLOR 0xffff00
81	#define LOGOCOLOR 0x2020b0	81	#define LOGOCOLOR 0x2020b0
82		82
83	#define RED(x, bits) ((x >> (8 + 8 + 8 - bits)) & ((1 << bits) - 1))	83	#define RED(x, bits) ((x >> (8 + 8 + 8 - bits)) & ((1 << bits) - 1))
84	#define GREEN(x, bits) ((x >> (8 + 8 - bits)) & ((1 << bits) - 1))	84	#define GREEN(x, bits) ((x >> (8 + 8 - bits)) & ((1 << bits) - 1))
85	#define BLUE(x, bits) ((x >> (8 - bits)) & ((1 << bits) - 1))	85	#define BLUE(x, bits) ((x >> (8 - bits)) & ((1 << bits) - 1))
86		86
87	#define POINTPOS(x, y) ((y) * scanline + (x) * pixelbytes)	87	#define POINTPOS(x, y) ((y) * scanline + (x) * pixelbytes)
88		88
89	/***************************************************************/	89	/***************************************************************/
90	/* Pixel specific fuctions */	90	/* Pixel specific fuctions */
91		91
92	static void (rgb2scr)(void , int);	92	static void (rgb2scr)(void , int);
93	static int (scr2rgb)(void );	93	static int (scr2rgb)(void );
94		94
95	static inline int COLOR(int color)	95	static inline int COLOR(int color)
96	{	96	{
97	return invert_colors ? ~color : color;	97	return invert_colors ? ~color : color;
98	}	98	}
99		99
100	/* Conversion routines between different color representations */	100	/* Conversion routines between different color representations */
101	static void rgb_byte0888(void *dst, int rgb)	101	static void rgb_byte0888(void *dst, int rgb)
102	{	102	{
103	((int ) dst) = rgb;	103	((int ) dst) = rgb;
104	}	104	}
105		105
106	static int byte0888_rgb(void *src)	106	static int byte0888_rgb(void *src)
107	{	107	{
108	return (((int ) src)) & 0xffffff;	108	return (((int ) src)) & 0xffffff;
109	}	109	}
110		110
111	static void bgr_byte0888(void *dst, int rgb)	111	static void bgr_byte0888(void *dst, int rgb)
112	{	112	{
113	((uint32_t ) dst) = BLUE(rgb, 8) << 16 \| GREEN(rgb, 8) << 8 \|	113	((uint32_t ) dst) = BLUE(rgb, 8) << 16 \| GREEN(rgb, 8) << 8 \|
114	RED(rgb, 8);	114	RED(rgb, 8);
115	}	115	}
116		116
117	static int byte0888_bgr(void *src)	117	static int byte0888_bgr(void *src)
118	{	118	{
119	int color = (uint32_t )(src);	119	int color = (uint32_t )(src);
120	return ((color & 0xff) << 16) \| (((color >> 8) & 0xff) << 8) \|	120	return ((color & 0xff) << 16) \| (((color >> 8) & 0xff) << 8) \|
121	((color >> 16) & 0xff);	121	((color >> 16) & 0xff);
122	}	122	}
123		123
124	static void rgb_byte888(void *dst, int rgb)	124	static void rgb_byte888(void *dst, int rgb)
125	{	125	{
126	uint8_t scr = (uint8_t ) dst;	126	uint8_t scr = (uint8_t ) dst;
127	#if defined(FB_INVERT_ENDIAN)	127	#if defined(FB_INVERT_ENDIAN)
128	scr[0] = RED(rgb, 8);	128	scr[0] = RED(rgb, 8);
129	scr[1] = GREEN(rgb, 8);	129	scr[1] = GREEN(rgb, 8);
130	scr[2] = BLUE(rgb, 8);	130	scr[2] = BLUE(rgb, 8);
131	#else	131	#else
132	scr[2] = RED(rgb, 8);	132	scr[2] = RED(rgb, 8);
133	scr[1] = GREEN(rgb, 8);	133	scr[1] = GREEN(rgb, 8);
134	scr[0] = BLUE(rgb, 8);	134	scr[0] = BLUE(rgb, 8);
135	#endif	135	#endif
136	}	136	}
137		137
138	static int byte888_rgb(void *src)	138	static int byte888_rgb(void *src)
139	{	139	{
140	uint8_t scr = (uint8_t ) src;	140	uint8_t scr = (uint8_t ) src;
141	#if defined(FB_INVERT_ENDIAN)	141	#if defined(FB_INVERT_ENDIAN)
142	return scr[0] << 16 \| scr[1] << 8 \| scr[2];	142	return scr[0] << 16 \| scr[1] << 8 \| scr[2];
143	#else	143	#else
144	return scr[2] << 16 \| scr[1] << 8 \| scr[0];	144	return scr[2] << 16 \| scr[1] << 8 \| scr[0];
145	#endif	145	#endif
146	}	146	}
147		147
-		148	static void bgr_byte8880(void *dst, int rgb)
-		149	{
-		150	uint8_t scr = (uint8_t ) dst;
-		151	scr[3] = RED(rgb, 8);
-		152	scr[2] = GREEN(rgb, 8);
-		153	scr[1] = BLUE(rgb, 8);
-		154	}
-		155
-		156	static int byte8880_bgr(void *src)
-		157	{
-		158	uint8_t scr = (uint8_t ) src;
-		159	return scr[3] << 16 \| scr[2] << 8 \| scr[1];
-		160	}
-		161
148	/** 16-bit depth (5:5:5) */	162	/** 16-bit depth (5:5:5) */
149	static void rgb_byte555(void *dst, int rgb)	163	static void rgb_byte555(void *dst, int rgb)
150	{	164	{
151	/* 5-bit, 5-bits, 5-bits */	165	/* 5-bit, 5-bits, 5-bits */
152	((uint16_t ) dst) = RED(rgb, 5) << 10 \| GREEN(rgb, 5) << 5 \|	166	((uint16_t ) dst) = RED(rgb, 5) << 10 \| GREEN(rgb, 5) << 5 \|
153	BLUE(rgb, 5);	167	BLUE(rgb, 5);
154	}	168	}
155		169
156	/** 16-bit depth (5:5:5) */	170	/** 16-bit depth (5:5:5) */
157	static int byte555_rgb(void *src)	171	static int byte555_rgb(void *src)
158	{	172	{
159	int color = (uint16_t )(src);	173	int color = (uint16_t )(src);
160	return (((color >> 10) & 0x1f) << (16 + 3)) \|	174	return (((color >> 10) & 0x1f) << (16 + 3)) \|
161	(((color >> 5) & 0x1f) << (8 + 3)) \| ((color & 0x1f) << 3);	175	(((color >> 5) & 0x1f) << (8 + 3)) \| ((color & 0x1f) << 3);
162	}	176	}
163		177
164	/** 16-bit depth (5:6:5) */	178	/** 16-bit depth (5:6:5) */
165	static void rgb_byte565(void *dst, int rgb)	179	static void rgb_byte565(void *dst, int rgb)
166	{	180	{
167	/* 5-bit, 6-bits, 5-bits */	181	/* 5-bit, 6-bits, 5-bits */
168	((uint16_t ) dst) = RED(rgb, 5) << 11 \| GREEN(rgb, 6) << 5 \|	182	((uint16_t ) dst) = RED(rgb, 5) << 11 \| GREEN(rgb, 6) << 5 \|
169	BLUE(rgb, 5);	183	BLUE(rgb, 5);
170	}	184	}
171		185
172	/** 16-bit depth (5:6:5) */	186	/** 16-bit depth (5:6:5) */
173	static int byte565_rgb(void *src)	187	static int byte565_rgb(void *src)
174	{	188	{
175	int color = (uint16_t )(src);	189	int color = (uint16_t )(src);
176	return (((color >> 11) & 0x1f) << (16 + 3)) \|	190	return (((color >> 11) & 0x1f) << (16 + 3)) \|
177	(((color >> 5) & 0x3f) << (8 + 2)) \| ((color & 0x1f) << 3);	191	(((color >> 5) & 0x3f) << (8 + 2)) \| ((color & 0x1f) << 3);
178	}	192	}
179		193
180	/** Put pixel - 8-bit depth (color palette/3:2:3)	194	/** Put pixel - 8-bit depth (color palette/3:2:3)
181	*	195	*
182	* Even though we try 3:2:3 color scheme here, an 8-bit framebuffer	196	* Even though we try 3:2:3 color scheme here, an 8-bit framebuffer
183	* will most likely use a color palette. The color appearance	197	* will most likely use a color palette. The color appearance
184	* will be pretty random and depend on the default installed	198	* will be pretty random and depend on the default installed
185	* palette. This could be fixed by supporting custom palette	199	* palette. This could be fixed by supporting custom palette
186	* and setting it to simulate the 8-bit truecolor.	200	* and setting it to simulate the 8-bit truecolor.
187	*/	201	*/
188	static void rgb_byte8(void *dst, int rgb)	202	static void rgb_byte8(void *dst, int rgb)
189	{	203	{
190	((uint8_t ) dst) = RED(rgb, 3) << 5 \| GREEN(rgb, 2) << 3 \|	204	((uint8_t ) dst) = RED(rgb, 3) << 5 \| GREEN(rgb, 2) << 3 \|
191	BLUE(rgb, 3);	205	BLUE(rgb, 3);
192	}	206	}
193		207
194	/** Return pixel color - 8-bit depth (color palette/3:2:3)	208	/** Return pixel color - 8-bit depth (color palette/3:2:3)
195	*	209	*
196	* See the comment for rgb_byte().	210	* See the comment for rgb_byte().
197	*/	211	*/
198	static int byte8_rgb(void *src)	212	static int byte8_rgb(void *src)
199	{	213	{
200	int color = (uint8_t )src;	214	int color = (uint8_t )src;
201	return (((color >> 5) & 0x7) << (16 + 5)) \|	215	return (((color >> 5) & 0x7) << (16 + 5)) \|
202	(((color >> 3) & 0x3) << (8 + 6)) \| ((color & 0x7) << 5);	216	(((color >> 3) & 0x3) << (8 + 6)) \| ((color & 0x7) << 5);
203	}	217	}
204		218
205	static void putpixel(unsigned int x, unsigned int y, int color)	219	static void putpixel(unsigned int x, unsigned int y, int color)
206	{	220	{
207	(*rgb2scr)(&fbaddress[POINTPOS(x, y)], COLOR(color));	221	(*rgb2scr)(&fbaddress[POINTPOS(x, y)], COLOR(color));
208		222
209	if (dbbuffer) {	223	if (dbbuffer) {
210	int dline = (y + dboffset) % yres;	224	int dline = (y + dboffset) % yres;
211	(*rgb2scr)(&dbbuffer[POINTPOS(x, dline)], COLOR(color));	225	(*rgb2scr)(&dbbuffer[POINTPOS(x, dline)], COLOR(color));
212	}	226	}
213	}	227	}
214		228
215	/** Get pixel from viewport */	229	/** Get pixel from viewport */
216	static int getpixel(unsigned int x, unsigned int y)	230	static int getpixel(unsigned int x, unsigned int y)
217	{	231	{
218	if (dbbuffer) {	232	if (dbbuffer) {
219	int dline = (y + dboffset) % yres;	233	int dline = (y + dboffset) % yres;
220	return COLOR((*scr2rgb)(&dbbuffer[POINTPOS(x, dline)]));	234	return COLOR((*scr2rgb)(&dbbuffer[POINTPOS(x, dline)]));
221	}	235	}
222	return COLOR((*scr2rgb)(&fbaddress[POINTPOS(x, y)]));	236	return COLOR((*scr2rgb)(&fbaddress[POINTPOS(x, y)]));
223	}	237	}
224		238
225		239
226	/** Fill screen with background color */	240	/** Fill screen with background color */
227	static void clear_screen(void)	241	static void clear_screen(void)
228	{	242	{
229	unsigned int y;	243	unsigned int y;
230		244
231	for (y = 0; y < yres; y++) {	245	for (y = 0; y < yres; y++) {
232	memcpy(&fbaddress[scanline * y], blankline, xres * pixelbytes);	246	memcpy(&fbaddress[scanline * y], blankline, xres * pixelbytes);
233	if (dbbuffer)	247	if (dbbuffer)
234	memcpy(&dbbuffer[scanline * y], blankline,	248	memcpy(&dbbuffer[scanline * y], blankline,
235	xres * pixelbytes);	249	xres * pixelbytes);
236	}	250	}
237	}	251	}
238		252
239		253
240	/** Scroll screen one row up */	254	/** Scroll screen one row up */
241	static void scroll_screen(void)	255	static void scroll_screen(void)
242	{	256	{
243	if (dbbuffer) {	257	if (dbbuffer) {
244	count_t first;	258	count_t first;
245		259
246	/* Clear the last row */	260	/* Clear the last row */
247	memcpy(&dbbuffer[dboffset * scanline], blankline, ROW_BYTES);	261	memcpy(&dbbuffer[dboffset * scanline], blankline, ROW_BYTES);
248		262
249	dboffset = (dboffset + FONT_SCANLINES) % yres;	263	dboffset = (dboffset + FONT_SCANLINES) % yres;
250	first = yres - dboffset;	264	first = yres - dboffset;
251		265
252	/* Move all rows one row up */	266	/* Move all rows one row up */
253	if (xres * pixelbytes == scanline) {	267	if (xres * pixelbytes == scanline) {
254	memcpy(fbaddress, &dbbuffer[dboffset * scanline],	268	memcpy(fbaddress, &dbbuffer[dboffset * scanline],
255	first * scanline);	269	first * scanline);
256	memcpy(&fbaddress[first * scanline], dbbuffer,	270	memcpy(&fbaddress[first * scanline], dbbuffer,
257	dboffset * scanline);	271	dboffset * scanline);
258	} else {	272	} else {
259	/*	273	/*
260	* When the scanline is bigger than number of bytes	274	* When the scanline is bigger than number of bytes
261	* in the X-resolution, chances are that the	275	* in the X-resolution, chances are that the
262	* frame buffer memory past the X-resolution is special	276	* frame buffer memory past the X-resolution is special
263	* in some way. For example, the SUNW,ffb framebuffer	277	* in some way. For example, the SUNW,ffb framebuffer
264	* wraps this area around the beginning of the same	278	* wraps this area around the beginning of the same
265	* line. To avoid troubles, copy only memory as	279	* line. To avoid troubles, copy only memory as
266	* specified by the resolution.	280	* specified by the resolution.
267	*/	281	*/
268	unsigned int i;	282	unsigned int i;
269		283
270	for (i = 0; i < first; i++)	284	for (i = 0; i < first; i++)
271	memcpy(&fbaddress[i * scanline],	285	memcpy(&fbaddress[i * scanline],
272	&dbbuffer[(dboffset + i) * scanline],	286	&dbbuffer[(dboffset + i) * scanline],
273	xres * pixelbytes);	287	xres * pixelbytes);
274	for (i = 0; i < dboffset; i++)	288	for (i = 0; i < dboffset; i++)
275	memcpy(&fbaddress[(first + i) * scanline],	289	memcpy(&fbaddress[(first + i) * scanline],
276	&dbbuffer[i * scanline], xres * pixelbytes);	290	&dbbuffer[i * scanline], xres * pixelbytes);
277	}	291	}
278	} else {	292	} else {
279	uint8_t lastline = &fbaddress[(rows - 1) ROW_BYTES];	293	uint8_t lastline = &fbaddress[(rows - 1) ROW_BYTES];
280		294
281	if (xres * pixelbytes == scanline) {	295	if (xres * pixelbytes == scanline) {
282	/* Move all rows one row up */	296	/* Move all rows one row up */
283	memcpy((void *) fbaddress,	297	memcpy((void *) fbaddress,
284	(void *) &fbaddress[ROW_BYTES],	298	(void *) &fbaddress[ROW_BYTES],
285	scanline * yres - ROW_BYTES);	299	scanline * yres - ROW_BYTES);
286	/* Clear the last row */	300	/* Clear the last row */
287	memcpy((void ) lastline, (void ) blankline,	301	memcpy((void ) lastline, (void ) blankline,
288	ROW_BYTES);	302	ROW_BYTES);
289	} else {	303	} else {
290	/*	304	/*
291	* See the comment in the dbbuffer case.	305	* See the comment in the dbbuffer case.
292	*/	306	*/
293	unsigned int i;	307	unsigned int i;
294		308
295	/* Move all rows one row up */	309	/* Move all rows one row up */
296	for (i = 0; i < yres - FONT_SCANLINES; i++)	310	for (i = 0; i < yres - FONT_SCANLINES; i++)
297	memcpy(&fbaddress[i * scanline],	311	memcpy(&fbaddress[i * scanline],
298	&fbaddress[(i + FONT_SCANLINES) * scanline],	312	&fbaddress[(i + FONT_SCANLINES) * scanline],
299	xres * pixelbytes);	313	xres * pixelbytes);
300	/* Clear the last row */	314	/* Clear the last row */
301	for (i = 0; i < FONT_SCANLINES; i++)	315	for (i = 0; i < FONT_SCANLINES; i++)
302	memcpy(&lastline[i * scanline],	316	memcpy(&lastline[i * scanline],
303	&blankline[i * scanline],	317	&blankline[i * scanline],
304	xres * pixelbytes);	318	xres * pixelbytes);
305	}	319	}
306	}	320	}
307	}	321	}
308		322
309		323
310	static void invert_pixel(unsigned int x, unsigned int y)	324	static void invert_pixel(unsigned int x, unsigned int y)
311	{	325	{
312	putpixel(x, y, ~getpixel(x, y));	326	putpixel(x, y, ~getpixel(x, y));
313	}	327	}
314		328
315		329
316	/** Draw one line of glyph at a given position */	330	/** Draw one line of glyph at a given position */
317	static void draw_glyph_line(unsigned int glline, unsigned int x, unsigned int y)	331	static void draw_glyph_line(unsigned int glline, unsigned int x, unsigned int y)
318	{	332	{
319	unsigned int i;	333	unsigned int i;
320		334
321	for (i = 0; i < 8; i++)	335	for (i = 0; i < 8; i++)
322	if (glline & (1 << (7 - i))) {	336	if (glline & (1 << (7 - i))) {
323	putpixel(x + i, y, FGCOLOR);	337	putpixel(x + i, y, FGCOLOR);
324	} else	338	} else
325	putpixel(x + i, y, BGCOLOR);	339	putpixel(x + i, y, BGCOLOR);
326	}	340	}
327		341
328	/***************************************************************/	342	/***************************************************************/
329	/* Character-console functions */	343	/* Character-console functions */
330		344
331	/** Draw character at given position */	345	/** Draw character at given position */
332	static void draw_glyph(uint8_t glyph, unsigned int col, unsigned int row)	346	static void draw_glyph(uint8_t glyph, unsigned int col, unsigned int row)
333	{	347	{
334	unsigned int y;	348	unsigned int y;
335		349
336	for (y = 0; y < FONT_SCANLINES; y++)	350	for (y = 0; y < FONT_SCANLINES; y++)
337	draw_glyph_line(fb_font[glyph * FONT_SCANLINES + y],	351	draw_glyph_line(fb_font[glyph * FONT_SCANLINES + y],
338	col * COL_WIDTH, row * FONT_SCANLINES + y);	352	col * COL_WIDTH, row * FONT_SCANLINES + y);
339	}	353	}
340		354
341	/** Invert character at given position */	355	/** Invert character at given position */
342	static void invert_char(unsigned int col, unsigned int row)	356	static void invert_char(unsigned int col, unsigned int row)
343	{	357	{
344	unsigned int x;	358	unsigned int x;
345	unsigned int y;	359	unsigned int y;
346		360
347	for (x = 0; x < COL_WIDTH; x++)	361	for (x = 0; x < COL_WIDTH; x++)
348	for (y = 0; y < FONT_SCANLINES; y++)	362	for (y = 0; y < FONT_SCANLINES; y++)
349	invert_pixel(col * COL_WIDTH + x,	363	invert_pixel(col * COL_WIDTH + x,
350	row * FONT_SCANLINES + y);	364	row * FONT_SCANLINES + y);
351	}	365	}
352		366
353	/** Draw character at default position */	367	/** Draw character at default position */
354	static void draw_char(char chr)	368	static void draw_char(char chr)
355	{	369	{
356	draw_glyph(chr, position % columns, position / columns);	370	draw_glyph(chr, position % columns, position / columns);
357	}	371	}
358		372
359	static void draw_logo(unsigned int startx, unsigned int starty)	373	static void draw_logo(unsigned int startx, unsigned int starty)
360	{	374	{
361	unsigned int x;	375	unsigned int x;
362	unsigned int y;	376	unsigned int y;
363	unsigned int byte;	377	unsigned int byte;
364	unsigned int rowbytes;	378	unsigned int rowbytes;
365		379
366	rowbytes = (helenos_width - 1) / 8 + 1;	380	rowbytes = (helenos_width - 1) / 8 + 1;
367		381
368	for (y = 0; y < helenos_height; y++)	382	for (y = 0; y < helenos_height; y++)
369	for (x = 0; x < helenos_width; x++) {	383	for (x = 0; x < helenos_width; x++) {
370	byte = helenos_bits[rowbytes * y + x / 8];	384	byte = helenos_bits[rowbytes * y + x / 8];
371	byte >>= x % 8;	385	byte >>= x % 8;
372	if (byte & 1)	386	if (byte & 1)
373	putpixel(startx + x, starty + y,	387	putpixel(startx + x, starty + y,
374	COLOR(LOGOCOLOR));	388	COLOR(LOGOCOLOR));
375	}	389	}
376	}	390	}
377		391
378	/***************************************************************/	392	/***************************************************************/
379	/* Stdout specific functions */	393	/* Stdout specific functions */
380		394
381	static void invert_cursor(void)	395	static void invert_cursor(void)
382	{	396	{
383	invert_char(position % columns, position / columns);	397	invert_char(position % columns, position / columns);
384	}	398	}
385		399
386	/** Print character to screen	400	/** Print character to screen
387	*	401	*
388	* Emulate basic terminal commands	402	* Emulate basic terminal commands
389	*/	403	*/
390	static void fb_putchar(chardev_t *dev, char ch)	404	static void fb_putchar(chardev_t *dev, char ch)
391	{	405	{
392	spinlock_lock(&fb_lock);	406	spinlock_lock(&fb_lock);
393		407
394	switch (ch) {	408	switch (ch) {
395	case '\n':	409	case '\n':
396	invert_cursor();	410	invert_cursor();
397	position += columns;	411	position += columns;
398	position -= position % columns;	412	position -= position % columns;
399	break;	413	break;
400	case '\r':	414	case '\r':
401	invert_cursor();	415	invert_cursor();
402	position -= position % columns;	416	position -= position % columns;
403	break;	417	break;
404	case '\b':	418	case '\b':
405	invert_cursor();	419	invert_cursor();
406	if (position % columns)	420	if (position % columns)
407	position--;	421	position--;
408	break;	422	break;
409	case '\t':	423	case '\t':
410	invert_cursor();	424	invert_cursor();
411	do {	425	do {
412	draw_char(' ');	426	draw_char(' ');
413	position++;	427	position++;
414	} while ((position % 8) && position < columns * rows);	428	} while ((position % 8) && position < columns * rows);
415	break;	429	break;
416	default:	430	default:
417	draw_char(ch);	431	draw_char(ch);
418	position++;	432	position++;
419	}	433	}
420		434
421	if (position >= columns * rows) {	435	if (position >= columns * rows) {
422	position -= columns;	436	position -= columns;
423	scroll_screen();	437	scroll_screen();
424	}	438	}
425		439
426	invert_cursor();	440	invert_cursor();
427		441
428	spinlock_unlock(&fb_lock);	442	spinlock_unlock(&fb_lock);
429	}	443	}
430		444
431	static chardev_t framebuffer;	445	static chardev_t framebuffer;
432	static chardev_operations_t fb_ops = {	446	static chardev_operations_t fb_ops = {
433	.write = fb_putchar,	447	.write = fb_putchar,
434	};	448	};
435		449
436		450
437	/** Initialize framebuffer as a chardev output device	451	/** Initialize framebuffer as a chardev output device
438	*	452	*
439	* @param addr Physical address of the framebuffer	453	* @param addr Physical address of the framebuffer
440	* @param x Screen width in pixels	454	* @param x Screen width in pixels
441	* @param y Screen height in pixels	455	* @param y Screen height in pixels
442	* @param scan Bytes per one scanline	456	* @param scan Bytes per one scanline
443	* @param visual Color model	457	* @param visual Color model
444	*	458	*
445	*/	459	*/
446	void fb_init(uintptr_t addr, unsigned int x, unsigned int y, unsigned int scan,	460	void fb_init(uintptr_t addr, unsigned int x, unsigned int y, unsigned int scan,
447	unsigned int visual)	461	unsigned int visual)
448	{	462	{
449	switch (visual) {	463	switch (visual) {
450	case VISUAL_INDIRECT_8:	464	case VISUAL_INDIRECT_8:
451	rgb2scr = rgb_byte8;	465	rgb2scr = rgb_byte8;
452	scr2rgb = byte8_rgb;	466	scr2rgb = byte8_rgb;
453	pixelbytes = 1;	467	pixelbytes = 1;
454	break;	468	break;
455	case VISUAL_RGB_5_5_5:	469	case VISUAL_RGB_5_5_5:
456	rgb2scr = rgb_byte555;	470	rgb2scr = rgb_byte555;
457	scr2rgb = byte555_rgb;	471	scr2rgb = byte555_rgb;
458	pixelbytes = 2;	472	pixelbytes = 2;
459	break;	473	break;
460	case VISUAL_RGB_5_6_5:	474	case VISUAL_RGB_5_6_5:
461	rgb2scr = rgb_byte565;	475	rgb2scr = rgb_byte565;
462	scr2rgb = byte565_rgb;	476	scr2rgb = byte565_rgb;
463	pixelbytes = 2;	477	pixelbytes = 2;
464	break;	478	break;
465	case VISUAL_RGB_8_8_8:	479	case VISUAL_RGB_8_8_8:
466	rgb2scr = rgb_byte888;	480	rgb2scr = rgb_byte888;
467	scr2rgb = byte888_rgb;	481	scr2rgb = byte888_rgb;
468	pixelbytes = 3;	482	pixelbytes = 3;
469	break;	483	break;
470	case VISUAL_RGB_8_8_8_0:	484	case VISUAL_RGB_8_8_8_0:
471	rgb2scr = rgb_byte888;	485	rgb2scr = rgb_byte888;
472	scr2rgb = byte888_rgb;	486	scr2rgb = byte888_rgb;
473	pixelbytes = 4;	487	pixelbytes = 4;
474	break;	488	break;
475	case VISUAL_RGB_0_8_8_8:	489	case VISUAL_RGB_0_8_8_8:
476	rgb2scr = rgb_byte0888;	490	rgb2scr = rgb_byte0888;
477	scr2rgb = byte0888_rgb;	491	scr2rgb = byte0888_rgb;
478	pixelbytes = 4;	492	pixelbytes = 4;
479	break;	493	break;
480	case VISUAL_BGR_0_8_8_8:	494	case VISUAL_BGR_0_8_8_8:
481	rgb2scr = bgr_byte0888;	495	rgb2scr = bgr_byte0888;
482	scr2rgb = byte0888_bgr;	496	scr2rgb = byte0888_bgr;
483	pixelbytes = 4;	497	pixelbytes = 4;
-		498	break;
-		499	case VISUAL_BGR_8_8_8_0:
-		500	rgb2scr = bgr_byte8880;

Subversion Repositories HelenOS

(root)/branches/arm/kernel/genarch/src/fb/fb.c – Rev 3478 → 3528