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


/*
 * Copyright (c) 2008 Martin Decky
 * 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/logo-196x66.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 <align.h>
#include <panic.h>
#include <memstr.h>
#include <config.h>
#include <bitops.h>
#include <print.h>
#include <ddi/ddi.h>
#include <arch/types.h>
 
SPINLOCK_INITIALIZE(fb_lock);
 
/**< Physical memory area for fb. */
static parea_t fb_parea;
 
static uint8_t *fb_addr;
static uint8_t *backbuf;
static uint8_t *glyphs;
static uint8_t *bgscan;
 
static unsigned int xres;
static unsigned int yres;
 
static unsigned int ylogo;
static unsigned int ytrim;
static unsigned int rowtrim;
 
static unsigned int scanline;
static unsigned int glyphscanline;
 
static unsigned int pixelbytes;
static unsigned int glyphbytes;
static unsigned int bgscanbytes;
 
static unsigned int cols;
static unsigned int rows;
static unsigned int position = 0;
 
#define BG_COLOR     0x000080
#define FG_COLOR     0xffff00
 
#define CURSOR       219
 
#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 COL2X(col)           ((col) * FONT_WIDTH)
#define ROW2Y(row)           ((row) * FONT_SCANLINES)
 
#define X2COL(x)             ((x) / FONT_WIDTH)
#define Y2ROW(y)             ((y) / FONT_SCANLINES)
 
#define FB_POS(x, y)         ((y) * scanline + (x) * pixelbytes)
#define BB_POS(col, row)     ((row) * cols + (col))
#define GLYPH_POS(glyph, y)  ((glyph) * glyphbytes + (y) * glyphscanline)
 
 
static void (*rgb_conv)(void *, uint32_t);
 
 
/** ARGB 8:8:8:8 conversion
 *
 */
static void rgb_0888(void *dst, uint32_t rgb)
{
    *((uint32_t *) dst) = rgb & 0xffffff;
}
 
 
/** ABGR 8:8:8:8 conversion
 *
 */
static void bgr_0888(void *dst, uint32_t rgb)
{
    *((uint32_t *) dst)
        = (BLUE(rgb, 8) << 16) | (GREEN(rgb, 8) << 8) | RED(rgb, 8);
}
 
 
/** RGB 8:8:8 conversion
 *
 */
static void rgb_888(void *dst, uint32_t rgb)
{
 
 
 
 
 
    ((uint8_t *) dst)[0] = BLUE(rgb, 8);
    ((uint8_t *) dst)[1] = GREEN(rgb, 8);
    ((uint8_t *) dst)[2] = RED(rgb, 8);
}
 
 
/** BGR 8:8:8 conversion
 *
 */
static void bgr_888(void *dst, uint32_t rgb)
{
    ((uint8_t *) dst)[0] = RED(rgb, 8);
    ((uint8_t *) dst)[1] = GREEN(rgb, 8);
    ((uint8_t *) dst)[2] = BLUE(rgb, 8);
}
 
 
/** RGB 5:5:5 conversion
 *
 */
static void rgb_555(void *dst, uint32_t rgb)
{
    *((uint16_t *) dst)
        = (RED(rgb, 5) << 10) | (GREEN(rgb, 5) << 5) | BLUE(rgb, 5);
}
 
 
/** RGB 5:6:5 conversion
 *
 */
static void rgb_565(void *dst, uint32_t rgb)
{
    *((uint16_t *) dst)
        = (RED(rgb, 5) << 11) | (GREEN(rgb, 6) << 5) | BLUE(rgb, 5);
}
 
 
/** RGB 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.
 *
 * Currently we set the palette on the ia32, amd64 and sparc64 port.
 *
 * Note that the byte is being inverted by this function. The reason is
 * that we would like to use a color palette where the white color code
 * is 0 and the black color code is 255, as some machines (Sun Blade 1500)
 * use these codes for black and white and prevent to set codes
 * 0 and 255 to other colors.
 *
 */
static void rgb_323(void *dst, uint32_t rgb)
{
    *((uint8_t *) dst)
        = ~((RED(rgb, 3) << 5) | (GREEN(rgb, 2) << 3) | BLUE(rgb, 3));
}
 
 
/** Hide logo and refresh screen
 *
 */
static void logo_hide(bool silent)
{
    ylogo = 0;
    ytrim = yres;
    rowtrim = rows;
    if (!silent)
        fb_redraw();
}
 
 
/** Draw character at given position
 *
 */
static void glyph_draw(uint8_t glyph, unsigned int col, unsigned int row, bool silent)
{
    unsigned int x = COL2X(col);
    unsigned int y = ROW2Y(row);
    unsigned int yd;
   
    if (y >= ytrim)
        logo_hide(silent);
   
    backbuf[BB_POS(col, row)] = glyph;
   
    if (!silent) {
        for (yd = 0; yd < FONT_SCANLINES; yd++)
            memcpy(&fb_addr[FB_POS(x, y + yd + ylogo)],
                &glyphs[GLYPH_POS(glyph, yd)], glyphscanline);
    }
}
 
 
/** Scroll screen down by one row
 *
 *
 */
static void screen_scroll(bool silent)
{
    if (ylogo > 0) {
        logo_hide(silent);
        return;
    }
   
    if (!silent) {
        unsigned int row;
       
        for (row = 0; row < rows; row++) {
            unsigned int y = ROW2Y(row);
            unsigned int yd;
           
            for (yd = 0; yd < FONT_SCANLINES; yd++) {
                unsigned int x;
                unsigned int col;
               
                for (col = 0, x = 0; col < cols; col++,
                    x += FONT_WIDTH) {
                    uint8_t glyph;
                   
                    if (row < rows - 1) {
                        if (backbuf[BB_POS(col, row)] ==
                            backbuf[BB_POS(col, row + 1)])
                            continue;
                       
                        glyph = backbuf[BB_POS(col, row + 1)];
                    } else
                        glyph = 0;
                   
                    memcpy(&fb_addr[FB_POS(x, y + yd)],
                        &glyphs[GLYPH_POS(glyph, yd)],
                        glyphscanline);
                }
            }
        }
    }
   
    memmove(backbuf, backbuf + cols, cols * (rows - 1));
    memsetb(&backbuf[BB_POS(0, rows - 1)], cols, 0);
}
 
 
static void cursor_put(bool silent)
{
    glyph_draw(CURSOR, position % cols, position / cols, silent);
}
 
 
static void cursor_remove(bool silent)
{
    glyph_draw(0, position % cols, position / cols, silent);
}
 
 
/** Print character to screen
 *
 * Emulate basic terminal commands.
 *
 */
static void fb_putchar(chardev_t *dev, char ch, bool silent)
{
    spinlock_lock(&fb_lock);
   
    switch (ch) {
    case '\n':
        cursor_remove(silent);
        position += cols;
        position -= position % cols;
        break;
    case '\r':
        cursor_remove(silent);
        position -= position % cols;
        break;
    case '\b':
        cursor_remove(silent);
        if (position % cols)
            position--;
        break;
    case '\t':
        cursor_remove(silent);
        do {
            glyph_draw((uint8_t) ' ', position % cols,
                position / cols, silent);
            position++;
        } while ((position % 8) && (position < cols * rows));
        break;
    default:
        glyph_draw((uint8_t) ch, position % cols,
            position / cols, silent);
        position++;
    }
   
    if (position >= cols * rows) {
        position -= cols;
        screen_scroll(silent);
    }
   
    cursor_put(silent);
   
    spinlock_unlock(&fb_lock);
}
 
static chardev_t framebuffer;
static chardev_operations_t fb_ops = {
    .write = fb_putchar,
};
 
 
/** Render glyphs
 *
 * Convert glyphs from device independent font
 * description to current visual representation.
 *
 */
static void glyphs_render(void)
{
    /* Prerender glyphs */
    unsigned int glyph;
   
    for (glyph = 0; glyph < FONT_GLYPHS; glyph++) {
        unsigned int y;
       
        for (y = 0; y < FONT_SCANLINES; y++) {
            unsigned int x;
           
            for (x = 0; x < FONT_WIDTH; x++) {
                void *dst = &glyphs[GLYPH_POS(glyph, y) +
                    x * pixelbytes];
                uint32_t rgb = (fb_font[ROW2Y(glyph) + y] &
                    (1 << (7 - x))) ? FG_COLOR : BG_COLOR;
                rgb_conv(dst, rgb);
            }
        }
    }
   
    /* Prerender background scanline */
    unsigned int x;
   
    for (x = 0; x < xres; x++)
        rgb_conv(&bgscan[x * pixelbytes], BG_COLOR);
}
 
 
/** Refresh the screen
 *
 */
void fb_redraw(void)
{
    if (ylogo > 0) {
        unsigned int y;
       
        for (y = 0; y < LOGO_HEIGHT; y++) {
            unsigned int x;
           
            for (x = 0; x < xres; x++)
                rgb_conv(&fb_addr[FB_POS(x, y)],
                    (x < LOGO_WIDTH) ?
                    fb_logo[y * LOGO_WIDTH + x] :
                    LOGO_COLOR);
        }
    }
   
    unsigned int row;
   
    for (row = 0; row < rowtrim; row++) {
        unsigned int y = ylogo + ROW2Y(row);
        unsigned int yd;
       
        for (yd = 0; yd < FONT_SCANLINES; yd++) {
            unsigned int x;
            unsigned int col;
           
            for (col = 0, x = 0; col < cols;
                col++, x += FONT_WIDTH) {
                void *d = &fb_addr[FB_POS(x, y + yd)];
                void *s = &glyphs[GLYPH_POS(backbuf[BB_POS(col,
                    row)], yd)];
                memcpy(d, s, glyphscanline);
            }
        }
    }
   
    if (COL2X(cols) < xres) {
        unsigned int y;
        unsigned int size = (xres - COL2X(cols)) * pixelbytes;
       
        for (y = ylogo; y < yres; y++)
            memcpy(&fb_addr[FB_POS(COL2X(cols), y)], bgscan, size);
    }
   
    if (ROW2Y(rowtrim) + ylogo < yres) {
        unsigned int y;
       
        for (y = ROW2Y(rowtrim) + ylogo; y < yres; y++)
            memcpy(&fb_addr[FB_POS(0, y)], bgscan, bgscanbytes);
    }
}
 
 
/** 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(fb_properties_t *props)
{
    switch (props->visual) {
    case VISUAL_INDIRECT_8:
        rgb_conv = rgb_323;
        pixelbytes = 1;
        break;
    case VISUAL_RGB_5_5_5:
        rgb_conv = rgb_555;
        pixelbytes = 2;
        break;
    case VISUAL_RGB_5_6_5:
        rgb_conv = rgb_565;
        pixelbytes = 2;
        break;
    case VISUAL_RGB_8_8_8:
        rgb_conv = rgb_888;
        pixelbytes = 3;
        break;
    case VISUAL_BGR_8_8_8:
        rgb_conv = bgr_888;
        pixelbytes = 3;
        break;
    case VISUAL_RGB_8_8_8_0:
        rgb_conv = rgb_888;
        pixelbytes = 4;
        break;
    case VISUAL_RGB_0_8_8_8:
        rgb_conv = rgb_0888;
        pixelbytes = 4;
        break;
    case VISUAL_BGR_0_8_8_8:
        rgb_conv = bgr_0888;
        pixelbytes = 4;
        break;
    default:
        panic("Unsupported visual.");
    }
   
    xres = props->x;
    yres = props->y;
    scanline = props->scan;
   
    cols = X2COL(xres);
    rows = Y2ROW(yres);
   
    if (yres > ylogo) {
        ylogo = LOGO_HEIGHT;
        rowtrim = rows - Y2ROW(ylogo);
        if (ylogo % FONT_SCANLINES > 0)
            rowtrim--;
        ytrim = ROW2Y(rowtrim);
    } else {
        ylogo = 0;
        ytrim = yres;
        rowtrim = rows;
    }
   
    glyphscanline = FONT_WIDTH * pixelbytes;
    glyphbytes = ROW2Y(glyphscanline);
    bgscanbytes = xres * pixelbytes;
   
    unsigned int fbsize = scanline * yres;
    unsigned int bbsize = cols * rows;
    unsigned int glyphsize = FONT_GLYPHS * glyphbytes;
   
    backbuf = (uint8_t *) malloc(bbsize, 0);
    if (!backbuf)
        panic("Unable to allocate backbuffer.");
   
    glyphs = (uint8_t *) malloc(glyphsize, 0);
    if (!glyphs)
        panic("Unable to allocate glyphs.");
   
    bgscan = malloc(bgscanbytes, 0);
    if (!bgscan)
        panic("Unable to allocate background pixel.");
   
    memsetb(backbuf, bbsize, 0);
   
    glyphs_render();
   
    fb_addr = (uint8_t *) hw_map((uintptr_t) props->addr, fbsize);
   
    fb_parea.pbase = (uintptr_t) props->addr + props->offset;
    fb_parea.vbase = (uintptr_t) fb_addr;
    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, scanline);
    sysinfo_set_item_val("fb.visual", NULL, props->visual);
    sysinfo_set_item_val("fb.address.physical", NULL, props->addr);
   
    fb_redraw();
   
    chardev_initialize("fb", &framebuffer, &fb_ops);
    stdout = &framebuffer;
}
 
/** @}
 */
 

Rev 3844	Rev 3876
1	/*	1	/*
2	* Copyright (c) 2008 Martin Decky	2	* Copyright (c) 2008 Martin Decky
3	* Copyright (c) 2006 Ondrej Palkovsky	3	* Copyright (c) 2006 Ondrej Palkovsky
4	* All rights reserved.	4	* All rights reserved.
5	*	5	*
6	* Redistribution and use in source and binary forms, with or without	6	* Redistribution and use in source and binary forms, with or without
7	* modification, are permitted provided that the following conditions	7	* modification, are permitted provided that the following conditions
8	* are met:	8	* are met:
9	*	9	*
10	* - Redistributions of source code must retain the above copyright	10	* - Redistributions of source code must retain the above copyright
11	* notice, this list of conditions and the following disclaimer.	11	* notice, this list of conditions and the following disclaimer.
12	* - Redistributions in binary form must reproduce the above copyright	12	* - Redistributions in binary form must reproduce the above copyright
13	* notice, this list of conditions and the following disclaimer in the	13	* notice, this list of conditions and the following disclaimer in the
14	* documentation and/or other materials provided with the distribution.	14	* documentation and/or other materials provided with the distribution.
15	* - The name of the author may not be used to endorse or promote products	15	* - The name of the author may not be used to endorse or promote products
16	* derived from this software without specific prior written permission.	16	* derived from this software without specific prior written permission.
17	*	17	*
18	* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR	18	* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
19	* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES	19	* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
20	* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.	20	* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
21	* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,	21	* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
22	* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT	22	* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
23	* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,	23	* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
24	* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY	24	* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
25	* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT	25	* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
26	* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF	26	* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
27	* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.	27	* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
28	*/	28	*/
29		29
30	/** @addtogroup genarch	30	/** @addtogroup genarch
31	* @{	31	* @{
32	*/	32	*/
33	/** @file	33	/** @file
34	*/	34	*/
35		35
36	#include <genarch/fb/font-8x16.h>	36	#include <genarch/fb/font-8x16.h>
37	#include <genarch/fb/logo-196x66.h>	37	#include <genarch/fb/logo-196x66.h>
38	#include <genarch/fb/visuals.h>	38	#include <genarch/fb/visuals.h>
39	#include <genarch/fb/fb.h>	39	#include <genarch/fb/fb.h>
40	#include <console/chardev.h>	40	#include <console/chardev.h>
41	#include <console/console.h>	41	#include <console/console.h>
42	#include <sysinfo/sysinfo.h>	42	#include <sysinfo/sysinfo.h>
43	#include <mm/slab.h>	43	#include <mm/slab.h>
44	#include <align.h>	44	#include <align.h>
45	#include <panic.h>	45	#include <panic.h>
46	#include <memstr.h>	46	#include <memstr.h>
47	#include <config.h>	47	#include <config.h>
48	#include <bitops.h>	48	#include <bitops.h>
49	#include <print.h>	49	#include <print.h>
50	#include <ddi/ddi.h>	50	#include <ddi/ddi.h>
51	#include <arch/types.h>	51	#include <arch/types.h>
52		52
53	SPINLOCK_INITIALIZE(fb_lock);	53	SPINLOCK_INITIALIZE(fb_lock);
54		54
55	/*< Physical memory area for fb. /	55	/*< Physical memory area for fb. /
56	static parea_t fb_parea;	56	static parea_t fb_parea;
57		57
58	static uint8_t *fb_addr;	58	static uint8_t *fb_addr;
59	static uint8_t *backbuf;	59	static uint8_t *backbuf;
60	static uint8_t *glyphs;	60	static uint8_t *glyphs;
61	static uint8_t *bgscan;	61	static uint8_t *bgscan;
62		62
63	static unsigned int xres;	63	static unsigned int xres;
64	static unsigned int yres;	64	static unsigned int yres;
65		65
66	static unsigned int ylogo;	66	static unsigned int ylogo;
67	static unsigned int ytrim;	67	static unsigned int ytrim;
68	static unsigned int rowtrim;	68	static unsigned int rowtrim;
69		69
70	static unsigned int scanline;	70	static unsigned int scanline;
71	static unsigned int glyphscanline;	71	static unsigned int glyphscanline;
72		72
73	static unsigned int pixelbytes;	73	static unsigned int pixelbytes;
74	static unsigned int glyphbytes;	74	static unsigned int glyphbytes;
75	static unsigned int bgscanbytes;	75	static unsigned int bgscanbytes;
76		76
77	static unsigned int cols;	77	static unsigned int cols;
78	static unsigned int rows;	78	static unsigned int rows;
79	static unsigned int position = 0;	79	static unsigned int position = 0;
80		80
81	#define BG_COLOR 0x000080	81	#define BG_COLOR 0x000080
82	#define FG_COLOR 0xffff00	82	#define FG_COLOR 0xffff00
83		83
84	#define CURSOR 219	84	#define CURSOR 219
85		85
86	#define RED(x, bits) ((x >> (8 + 8 + 8 - bits)) & ((1 << bits) - 1))	86	#define RED(x, bits) ((x >> (8 + 8 + 8 - bits)) & ((1 << bits) - 1))
87	#define GREEN(x, bits) ((x >> (8 + 8 - bits)) & ((1 << bits) - 1))	87	#define GREEN(x, bits) ((x >> (8 + 8 - bits)) & ((1 << bits) - 1))
88	#define BLUE(x, bits) ((x >> (8 - bits)) & ((1 << bits) - 1))	88	#define BLUE(x, bits) ((x >> (8 - bits)) & ((1 << bits) - 1))
89		89
90	#define COL2X(col) ((col) * FONT_WIDTH)	90	#define COL2X(col) ((col) * FONT_WIDTH)
91	#define ROW2Y(row) ((row) * FONT_SCANLINES)	91	#define ROW2Y(row) ((row) * FONT_SCANLINES)
92		92
93	#define X2COL(x) ((x) / FONT_WIDTH)	93	#define X2COL(x) ((x) / FONT_WIDTH)
94	#define Y2ROW(y) ((y) / FONT_SCANLINES)	94	#define Y2ROW(y) ((y) / FONT_SCANLINES)
95		95
96	#define FB_POS(x, y) ((y) * scanline + (x) * pixelbytes)	96	#define FB_POS(x, y) ((y) * scanline + (x) * pixelbytes)
97	#define BB_POS(col, row) ((row) * cols + (col))	97	#define BB_POS(col, row) ((row) * cols + (col))
98	#define GLYPH_POS(glyph, y) ((glyph) * glyphbytes + (y) * glyphscanline)	98	#define GLYPH_POS(glyph, y) ((glyph) * glyphbytes + (y) * glyphscanline)
99		99
100		100
101	static void (rgb_conv)(void , uint32_t);	101	static void (rgb_conv)(void , uint32_t);
102		102
103		103
104	/** ARGB 8:8:8:8 conversion	104	/** ARGB 8:8:8:8 conversion
105	*	105	*
106	*/	106	*/
107	static void rgb_0888(void *dst, uint32_t rgb)	107	static void rgb_0888(void *dst, uint32_t rgb)
108	{	108	{
109	((uint32_t ) dst) = rgb & 0xffffff;	109	((uint32_t ) dst) = rgb & 0xffffff;
110	}	110	}
111		111
112		112
113	/** ABGR 8:8:8:8 conversion	113	/** ABGR 8:8:8:8 conversion
114	*	114	*
115	*/	115	*/
116	static void bgr_0888(void *dst, uint32_t rgb)	116	static void bgr_0888(void *dst, uint32_t rgb)
117	{	117	{
118	((uint32_t ) dst)	118	((uint32_t ) dst)
119	= (BLUE(rgb, 8) << 16) \| (GREEN(rgb, 8) << 8) \| RED(rgb, 8);	119	= (BLUE(rgb, 8) << 16) \| (GREEN(rgb, 8) << 8) \| RED(rgb, 8);
120	}	120	}
121		121
122		122
123	/** BGR 8:8:8 conversion	123	/** RGB 8:8:8 conversion
124	*	124	*
125	*/	125	*/
126	static void rgb_888(void *dst, uint32_t rgb)	126	static void rgb_888(void *dst, uint32_t rgb)
127	{	127	{
128	#if defined(FB_INVERT_ENDIAN)	-
129	((uint8_t *) dst)[0] = RED(rgb, 8);	-
130	((uint8_t *) dst)[1] = GREEN(rgb, 8);	-
131	((uint8_t *) dst)[2] = BLUE(rgb, 8);	-
132	#else	-
133	((uint8_t *) dst)[0] = BLUE(rgb, 8);	128	((uint8_t *) dst)[0] = BLUE(rgb, 8);
134	((uint8_t *) dst)[1] = GREEN(rgb, 8);	129	((uint8_t *) dst)[1] = GREEN(rgb, 8);
135	((uint8_t *) dst)[2] = RED(rgb, 8);	130	((uint8_t *) dst)[2] = RED(rgb, 8);
-		131	}
-		132
-		133
-		134	/** BGR 8:8:8 conversion
-		135	*
136	#endif	136	*/
-		137	static void bgr_888(void *dst, uint32_t rgb)
-		138	{
-		139	((uint8_t *) dst)[0] = RED(rgb, 8);
-		140	((uint8_t *) dst)[1] = GREEN(rgb, 8);
-		141	((uint8_t *) dst)[2] = BLUE(rgb, 8);
137	}	142	}
138		143
139		144
140	/** RGB 5:5:5 conversion	145	/** RGB 5:5:5 conversion
141	*	146	*
142	*/	147	*/
143	static void rgb_555(void *dst, uint32_t rgb)	148	static void rgb_555(void *dst, uint32_t rgb)
144	{	149	{
145	((uint16_t ) dst)	150	((uint16_t ) dst)
146	= (RED(rgb, 5) << 10) \| (GREEN(rgb, 5) << 5) \| BLUE(rgb, 5);	151	= (RED(rgb, 5) << 10) \| (GREEN(rgb, 5) << 5) \| BLUE(rgb, 5);
147	}	152	}
148		153
149		154
150	/** RGB 5:6:5 conversion	155	/** RGB 5:6:5 conversion
151	*	156	*
152	*/	157	*/
153	static void rgb_565(void *dst, uint32_t rgb)	158	static void rgb_565(void *dst, uint32_t rgb)
154	{	159	{
155	((uint16_t ) dst)	160	((uint16_t ) dst)
156	= (RED(rgb, 5) << 11) \| (GREEN(rgb, 6) << 5) \| BLUE(rgb, 5);	161	= (RED(rgb, 5) << 11) \| (GREEN(rgb, 6) << 5) \| BLUE(rgb, 5);
157	}	162	}
158		163
159		164
160	/** RGB 3:2:3	165	/** RGB 3:2:3
161	*	166	*
162	* Even though we try 3:2:3 color scheme here, an 8-bit framebuffer	167	* Even though we try 3:2:3 color scheme here, an 8-bit framebuffer
163	* will most likely use a color palette. The color appearance	168	* will most likely use a color palette. The color appearance
164	* will be pretty random and depend on the default installed	169	* will be pretty random and depend on the default installed
165	* palette. This could be fixed by supporting custom palette	170	* palette. This could be fixed by supporting custom palette
166	* and setting it to simulate the 8-bit truecolor.	171	* and setting it to simulate the 8-bit truecolor.
167	*	172	*
168	* Currently we set the palette on the ia32, amd64 and sparc64 port.	173	* Currently we set the palette on the ia32, amd64 and sparc64 port.
169	*	174	*
170	* Note that the byte is being inverted by this function. The reason is	175	* Note that the byte is being inverted by this function. The reason is
171	* that we would like to use a color palette where the white color code	176	* that we would like to use a color palette where the white color code
172	* is 0 and the black color code is 255, as some machines (Sun Blade 1500)	177	* is 0 and the black color code is 255, as some machines (Sun Blade 1500)
173	* use these codes for black and white and prevent to set codes	178	* use these codes for black and white and prevent to set codes
174	* 0 and 255 to other colors.	179	* 0 and 255 to other colors.
175	*	180	*
176	*/	181	*/
177	static void rgb_323(void *dst, uint32_t rgb)	182	static void rgb_323(void *dst, uint32_t rgb)
178	{	183	{
179	((uint8_t ) dst)	184	((uint8_t ) dst)
180	= ~((RED(rgb, 3) << 5) \| (GREEN(rgb, 2) << 3) \| BLUE(rgb, 3));	185	= ~((RED(rgb, 3) << 5) \| (GREEN(rgb, 2) << 3) \| BLUE(rgb, 3));
181	}	186	}
182		187
183		188
184	/** Hide logo and refresh screen	189	/** Hide logo and refresh screen
185	*	190	*
186	*/	191	*/
187	static void logo_hide(bool silent)	192	static void logo_hide(bool silent)
188	{	193	{
189	ylogo = 0;	194	ylogo = 0;
190	ytrim = yres;	195	ytrim = yres;
191	rowtrim = rows;	196	rowtrim = rows;
192	if (!silent)	197	if (!silent)
193	fb_redraw();	198	fb_redraw();
194	}	199	}
195		200
196		201
197	/** Draw character at given position	202	/** Draw character at given position
198	*	203	*
199	*/	204	*/
200	static void glyph_draw(uint8_t glyph, unsigned int col, unsigned int row, bool silent)	205	static void glyph_draw(uint8_t glyph, unsigned int col, unsigned int row, bool silent)
201	{	206	{
202	unsigned int x = COL2X(col);	207	unsigned int x = COL2X(col);
203	unsigned int y = ROW2Y(row);	208	unsigned int y = ROW2Y(row);
204	unsigned int yd;	209	unsigned int yd;
205		210
206	if (y >= ytrim)	211	if (y >= ytrim)
207	logo_hide(silent);	212	logo_hide(silent);
208		213
209	backbuf[BB_POS(col, row)] = glyph;	214	backbuf[BB_POS(col, row)] = glyph;
210		215
211	if (!silent) {	216	if (!silent) {
212	for (yd = 0; yd < FONT_SCANLINES; yd++)	217	for (yd = 0; yd < FONT_SCANLINES; yd++)
213	memcpy(&fb_addr[FB_POS(x, y + yd + ylogo)],	218	memcpy(&fb_addr[FB_POS(x, y + yd + ylogo)],
214	&glyphs[GLYPH_POS(glyph, yd)], glyphscanline);	219	&glyphs[GLYPH_POS(glyph, yd)], glyphscanline);
215	}	220	}
216	}	221	}
217		222
218		223
219	/** Scroll screen down by one row	224	/** Scroll screen down by one row
220	*	225	*
221	*	226	*
222	*/	227	*/
223	static void screen_scroll(bool silent)	228	static void screen_scroll(bool silent)
224	{	229	{
225	if (ylogo > 0) {	230	if (ylogo > 0) {
226	logo_hide(silent);	231	logo_hide(silent);
227	return;	232	return;
228	}	233	}
229		234
230	if (!silent) {	235	if (!silent) {
231	unsigned int row;	236	unsigned int row;
232		237
233	for (row = 0; row < rows; row++) {	238	for (row = 0; row < rows; row++) {
234	unsigned int y = ROW2Y(row);	239	unsigned int y = ROW2Y(row);
235	unsigned int yd;	240	unsigned int yd;
236		241
237	for (yd = 0; yd < FONT_SCANLINES; yd++) {	242	for (yd = 0; yd < FONT_SCANLINES; yd++) {
238	unsigned int x;	243	unsigned int x;
239	unsigned int col;	244	unsigned int col;
240		245
241	for (col = 0, x = 0; col < cols; col++,	246	for (col = 0, x = 0; col < cols; col++,
242	x += FONT_WIDTH) {	247	x += FONT_WIDTH) {
243	uint8_t glyph;	248	uint8_t glyph;
244		249
245	if (row < rows - 1) {	250	if (row < rows - 1) {
246	if (backbuf[BB_POS(col, row)] ==	251	if (backbuf[BB_POS(col, row)] ==
247	backbuf[BB_POS(col, row + 1)])	252	backbuf[BB_POS(col, row + 1)])
248	continue;	253	continue;
249		254
250	glyph = backbuf[BB_POS(col, row + 1)];	255	glyph = backbuf[BB_POS(col, row + 1)];
251	} else	256	} else
252	glyph = 0;	257	glyph = 0;
253		258
254	memcpy(&fb_addr[FB_POS(x, y + yd)],	259	memcpy(&fb_addr[FB_POS(x, y + yd)],
255	&glyphs[GLYPH_POS(glyph, yd)],	260	&glyphs[GLYPH_POS(glyph, yd)],
256	glyphscanline);	261	glyphscanline);
257	}	262	}
258	}	263	}
259	}	264	}
260	}	265	}
261		266
262	memmove(backbuf, backbuf + cols, cols * (rows - 1));	267	memmove(backbuf, backbuf + cols, cols * (rows - 1));
263	memsetb(&backbuf[BB_POS(0, rows - 1)], cols, 0);	268	memsetb(&backbuf[BB_POS(0, rows - 1)], cols, 0);
264	}	269	}
265		270
266		271
267	static void cursor_put(bool silent)	272	static void cursor_put(bool silent)
268	{	273	{
269	glyph_draw(CURSOR, position % cols, position / cols, silent);	274	glyph_draw(CURSOR, position % cols, position / cols, silent);
270	}	275	}
271		276
272		277
273	static void cursor_remove(bool silent)	278	static void cursor_remove(bool silent)
274	{	279	{
275	glyph_draw(0, position % cols, position / cols, silent);	280	glyph_draw(0, position % cols, position / cols, silent);
276	}	281	}
277		282
278		283
279	/** Print character to screen	284	/** Print character to screen
280	*	285	*
281	* Emulate basic terminal commands.	286	* Emulate basic terminal commands.
282	*	287	*
283	*/	288	*/
284	static void fb_putchar(chardev_t *dev, char ch, bool silent)	289	static void fb_putchar(chardev_t *dev, char ch, bool silent)
285	{	290	{
286	spinlock_lock(&fb_lock);	291	spinlock_lock(&fb_lock);
287		292
288	switch (ch) {	293	switch (ch) {
289	case '\n':	294	case '\n':
290	cursor_remove(silent);	295	cursor_remove(silent);
291	position += cols;	296	position += cols;
292	position -= position % cols;	297	position -= position % cols;
293	break;	298	break;
294	case '\r':	299	case '\r':
295	cursor_remove(silent);	300	cursor_remove(silent);
296	position -= position % cols;	301	position -= position % cols;
297	break;	302	break;
298	case '\b':	303	case '\b':
299	cursor_remove(silent);	304	cursor_remove(silent);
300	if (position % cols)	305	if (position % cols)
301	position--;	306	position--;
302	break;	307	break;
303	case '\t':	308	case '\t':
304	cursor_remove(silent);	309	cursor_remove(silent);
305	do {	310	do {
306	glyph_draw((uint8_t) ' ', position % cols,	311	glyph_draw((uint8_t) ' ', position % cols,
307	position / cols, silent);	312	position / cols, silent);
308	position++;	313	position++;
309	} while ((position % 8) && (position < cols * rows));	314	} while ((position % 8) && (position < cols * rows));
310	break;	315	break;
311	default:	316	default:
312	glyph_draw((uint8_t) ch, position % cols,	317	glyph_draw((uint8_t) ch, position % cols,
313	position / cols, silent);	318	position / cols, silent);
314	position++;	319	position++;
315	}	320	}
316		321
317	if (position >= cols * rows) {	322	if (position >= cols * rows) {
318	position -= cols;	323	position -= cols;
319	screen_scroll(silent);	324	screen_scroll(silent);
320	}	325	}
321		326
322	cursor_put(silent);	327	cursor_put(silent);
323		328
324	spinlock_unlock(&fb_lock);	329	spinlock_unlock(&fb_lock);
325	}	330	}
326		331
327	static chardev_t framebuffer;	332	static chardev_t framebuffer;
328	static chardev_operations_t fb_ops = {	333	static chardev_operations_t fb_ops = {
329	.write = fb_putchar,	334	.write = fb_putchar,
330	};	335	};
331		336
332		337
333	/** Render glyphs	338	/** Render glyphs
334	*	339	*
335	* Convert glyphs from device independent font	340	* Convert glyphs from device independent font
336	* description to current visual representation.	341	* description to current visual representation.
337	*	342	*
338	*/	343	*/
339	static void glyphs_render(void)	344	static void glyphs_render(void)
340	{	345	{
341	/* Prerender glyphs */	346	/* Prerender glyphs */
342	unsigned int glyph;	347	unsigned int glyph;
343		348
344	for (glyph = 0; glyph < FONT_GLYPHS; glyph++) {	349	for (glyph = 0; glyph < FONT_GLYPHS; glyph++) {
345	unsigned int y;	350	unsigned int y;
346		351
347	for (y = 0; y < FONT_SCANLINES; y++) {	352	for (y = 0; y < FONT_SCANLINES; y++) {
348	unsigned int x;	353	unsigned int x;
349		354
350	for (x = 0; x < FONT_WIDTH; x++) {	355	for (x = 0; x < FONT_WIDTH; x++) {
351	void *dst = &glyphs[GLYPH_POS(glyph, y) +	356	void *dst = &glyphs[GLYPH_POS(glyph, y) +
352	x * pixelbytes];	357	x * pixelbytes];
353	uint32_t rgb = (fb_font[ROW2Y(glyph) + y] &	358	uint32_t rgb = (fb_font[ROW2Y(glyph) + y] &
354	(1 << (7 - x))) ? FG_COLOR : BG_COLOR;	359	(1 << (7 - x))) ? FG_COLOR : BG_COLOR;
355	rgb_conv(dst, rgb);	360	rgb_conv(dst, rgb);
356	}	361	}
357	}	362	}
358	}	363	}
359		364
360	/* Prerender background scanline */	365	/* Prerender background scanline */
361	unsigned int x;	366	unsigned int x;
362		367
363	for (x = 0; x < xres; x++)	368	for (x = 0; x < xres; x++)
364	rgb_conv(&bgscan[x * pixelbytes], BG_COLOR);	369	rgb_conv(&bgscan[x * pixelbytes], BG_COLOR);
365	}	370	}
366		371
367		372
368	/** Refresh the screen	373	/** Refresh the screen
369	*	374	*
370	*/	375	*/
371	void fb_redraw(void)	376	void fb_redraw(void)
372	{	377	{
373	if (ylogo > 0) {	378	if (ylogo > 0) {
374	unsigned int y;	379	unsigned int y;
375		380
376	for (y = 0; y < LOGO_HEIGHT; y++) {	381	for (y = 0; y < LOGO_HEIGHT; y++) {
377	unsigned int x;	382	unsigned int x;
378		383
379	for (x = 0; x < xres; x++)	384	for (x = 0; x < xres; x++)
380	rgb_conv(&fb_addr[FB_POS(x, y)],	385	rgb_conv(&fb_addr[FB_POS(x, y)],
381	(x < LOGO_WIDTH) ?	386	(x < LOGO_WIDTH) ?
382	fb_logo[y * LOGO_WIDTH + x] :	387	fb_logo[y * LOGO_WIDTH + x] :
383	LOGO_COLOR);	388	LOGO_COLOR);
384	}	389	}
385	}	390	}
386		391
387	unsigned int row;	392	unsigned int row;
388		393
389	for (row = 0; row < rowtrim; row++) {	394	for (row = 0; row < rowtrim; row++) {
390	unsigned int y = ylogo + ROW2Y(row);	395	unsigned int y = ylogo + ROW2Y(row);
391	unsigned int yd;	396	unsigned int yd;
392		397
393	for (yd = 0; yd < FONT_SCANLINES; yd++) {	398	for (yd = 0; yd < FONT_SCANLINES; yd++) {
394	unsigned int x;	399	unsigned int x;
395	unsigned int col;	400	unsigned int col;
396		401
397	for (col = 0, x = 0; col < cols;	402	for (col = 0, x = 0; col < cols;
398	col++, x += FONT_WIDTH) {	403	col++, x += FONT_WIDTH) {
399	void *d = &fb_addr[FB_POS(x, y + yd)];	404	void *d = &fb_addr[FB_POS(x, y + yd)];
400	void *s = &glyphs[GLYPH_POS(backbuf[BB_POS(col,	405	void *s = &glyphs[GLYPH_POS(backbuf[BB_POS(col,
401	row)], yd)];	406	row)], yd)];
402	memcpy(d, s, glyphscanline);	407	memcpy(d, s, glyphscanline);
403	}	408	}
404	}	409	}
405	}	410	}
406		411
407	if (COL2X(cols) < xres) {	412	if (COL2X(cols) < xres) {
408	unsigned int y;	413	unsigned int y;
409	unsigned int size = (xres - COL2X(cols)) * pixelbytes;	414	unsigned int size = (xres - COL2X(cols)) * pixelbytes;
410		415
411	for (y = ylogo; y < yres; y++)	416	for (y = ylogo; y < yres; y++)
412	memcpy(&fb_addr[FB_POS(COL2X(cols), y)], bgscan, size);	417	memcpy(&fb_addr[FB_POS(COL2X(cols), y)], bgscan, size);
413	}	418	}
414		419
415	if (ROW2Y(rowtrim) + ylogo < yres) {	420	if (ROW2Y(rowtrim) + ylogo < yres) {
416	unsigned int y;	421	unsigned int y;
417		422
418	for (y = ROW2Y(rowtrim) + ylogo; y < yres; y++)	423	for (y = ROW2Y(rowtrim) + ylogo; y < yres; y++)
419	memcpy(&fb_addr[FB_POS(0, y)], bgscan, bgscanbytes);	424	memcpy(&fb_addr[FB_POS(0, y)], bgscan, bgscanbytes);
420	}	425	}
421	}	426	}
422		427
423		428
424	/** Initialize framebuffer as a chardev output device	429	/** Initialize framebuffer as a chardev output device
425	*	430	*
426	* @param addr Physical address of the framebuffer	431	* @param addr Physical address of the framebuffer
427	* @param x Screen width in pixels	432	* @param x Screen width in pixels
428	* @param y Screen height in pixels	433	* @param y Screen height in pixels
429	* @param scan Bytes per one scanline	434	* @param scan Bytes per one scanline
430	* @param visual Color model	435	* @param visual Color model
431	*	436	*
432	*/	437	*/
433	void fb_init(fb_properties_t *props)	438	void fb_init(fb_properties_t *props)
434	{	439	{
435	switch (props->visual) {	440	switch (props->visual) {
436	case VISUAL_INDIRECT_8:	441	case VISUAL_INDIRECT_8:
437	rgb_conv = rgb_323;	442	rgb_conv = rgb_323;
438	pixelbytes = 1;	443	pixelbytes = 1;
439	break;	444	break;
440	case VISUAL_RGB_5_5_5:	445	case VISUAL_RGB_5_5_5:
441	rgb_conv = rgb_555;	446	rgb_conv = rgb_555;
442	pixelbytes = 2;	447	pixelbytes = 2;
443	break;	448	break;
444	case VISUAL_RGB_5_6_5:	449	case VISUAL_RGB_5_6_5:
445	rgb_conv = rgb_565;	450	rgb_conv = rgb_565;
446	pixelbytes = 2;	451	pixelbytes = 2;
447	break;	452	break;
448	case VISUAL_RGB_8_8_8:	453	case VISUAL_RGB_8_8_8:
449	rgb_conv = rgb_888;	454	rgb_conv = rgb_888;
450	pixelbytes = 3;	455	pixelbytes = 3;
-		456	break;
-		457	case VISUAL_BGR_8_8_8:
-		458	rgb_conv = bgr_888;
-		459	pixelbytes = 3;
451	break;	460	break;
452	case VISUAL_RGB_8_8_8_0:	461	case VISUAL_RGB_8_8_8_0:
453	rgb_conv = rgb_888;	462	rgb_conv = rgb_888;
454	pixelbytes = 4;	463	pixelbytes = 4;
455	break;	464	break;
456	case VISUAL_RGB_0_8_8_8:	465	case VISUAL_RGB_0_8_8_8:
457	rgb_conv = rgb_0888;	466	rgb_conv = rgb_0888;
458	pixelbytes = 4;	467	pixelbytes = 4;
459	break;	468	break;
460	case VISUAL_BGR_0_8_8_8:	469	case VISUAL_BGR_0_8_8_8:
461	rgb_conv = bgr_0888;	470	rgb_conv = bgr_0888;
462	pixelbytes = 4;	471	pixelbytes = 4;
463	break;	472	break;
464	default:	473	default:
465	panic("Unsupported visual.");	474	panic("Unsupported visual.");
466	}	475	}
467		476
468	xres = props->x;	477	xres = props->x;
469	yres = props->y;	478	yres = props->y;
470	scanline = props->scan;	479	scanline = props->scan;
471		480
472	cols = X2COL(xres);	481	cols = X2COL(xres);
473	rows = Y2ROW(yres);	482	rows = Y2ROW(yres);
474		483
475	if (yres > ylogo) {	484	if (yres > ylogo) {
476	ylogo = LOGO_HEIGHT;	485	ylogo = LOGO_HEIGHT;
477	rowtrim = rows - Y2ROW(ylogo);	486	rowtrim = rows - Y2ROW(ylogo);
478	if (ylogo % FONT_SCANLINES > 0)	487	if (ylogo % FONT_SCANLINES > 0)
479	rowtrim--;	488	rowtrim--;
480	ytrim = ROW2Y(rowtrim);	489	ytrim = ROW2Y(rowtrim);
481	} else {	490	} else {
482	ylogo = 0;	491	ylogo = 0;
483	ytrim = yres;	492	ytrim = yres;
484	rowtrim = rows;	493	rowtrim = rows;
485	}	494	}
486		495

Subversion Repositories HelenOS

(root)/trunk/kernel/genarch/src/fb/fb.c – Rev 3844 → 3876