WebSVN – HelenOS – Diff – /branches/dynload/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);
 
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(outdev_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 outdev_t fb_console;
static outdev_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 output character 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);
   
    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();
   
    outdev_initialize("fb", &fb_console, &fb_ops);
    stdout = &fb_console;
}
 
/** @}
 */
 

Rev 4343	Rev 4346
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	static uint8_t *fb_addr;	55	static uint8_t *fb_addr;
56	static uint8_t *backbuf;	56	static uint8_t *backbuf;
57	static uint8_t *glyphs;	57	static uint8_t *glyphs;
58	static uint8_t *bgscan;	58	static uint8_t *bgscan;
59		59
60	static unsigned int xres;	60	static unsigned int xres;
61	static unsigned int yres;	61	static unsigned int yres;
62		62
63	static unsigned int ylogo;	63	static unsigned int ylogo;
64	static unsigned int ytrim;	64	static unsigned int ytrim;
65	static unsigned int rowtrim;	65	static unsigned int rowtrim;
66		66
67	static unsigned int scanline;	67	static unsigned int scanline;
68	static unsigned int glyphscanline;	68	static unsigned int glyphscanline;
69		69
70	static unsigned int pixelbytes;	70	static unsigned int pixelbytes;
71	static unsigned int glyphbytes;	71	static unsigned int glyphbytes;
72	static unsigned int bgscanbytes;	72	static unsigned int bgscanbytes;
73		73
74	static unsigned int cols;	74	static unsigned int cols;
75	static unsigned int rows;	75	static unsigned int rows;
76	static unsigned int position = 0;	76	static unsigned int position = 0;
77		77
78	#define BG_COLOR 0x000080	78	#define BG_COLOR 0x000080
79	#define FG_COLOR 0xffff00	79	#define FG_COLOR 0xffff00
80		80
81	#define CURSOR 219	81	#define CURSOR 219
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 COL2X(col) ((col) * FONT_WIDTH)	87	#define COL2X(col) ((col) * FONT_WIDTH)
88	#define ROW2Y(row) ((row) * FONT_SCANLINES)	88	#define ROW2Y(row) ((row) * FONT_SCANLINES)
89		89
90	#define X2COL(x) ((x) / FONT_WIDTH)	90	#define X2COL(x) ((x) / FONT_WIDTH)
91	#define Y2ROW(y) ((y) / FONT_SCANLINES)	91	#define Y2ROW(y) ((y) / FONT_SCANLINES)
92		92
93	#define FB_POS(x, y) ((y) * scanline + (x) * pixelbytes)	93	#define FB_POS(x, y) ((y) * scanline + (x) * pixelbytes)
94	#define BB_POS(col, row) ((row) * cols + (col))	94	#define BB_POS(col, row) ((row) * cols + (col))
95	#define GLYPH_POS(glyph, y) ((glyph) * glyphbytes + (y) * glyphscanline)	95	#define GLYPH_POS(glyph, y) ((glyph) * glyphbytes + (y) * glyphscanline)
96		96
97		97
98	static void (rgb_conv)(void , uint32_t);	98	static void (rgb_conv)(void , uint32_t);
99		99
100		100
101	/** ARGB 8:8:8:8 conversion	101	/** ARGB 8:8:8:8 conversion
102	*	102	*
103	*/	103	*/
104	static void rgb_0888(void *dst, uint32_t rgb)	104	static void rgb_0888(void *dst, uint32_t rgb)
105	{	105	{
106	((uint32_t ) dst) = rgb & 0xffffff;	106	((uint32_t ) dst) = rgb & 0xffffff;
107	}	107	}
108		108
109		109
110	/** ABGR 8:8:8:8 conversion	110	/** ABGR 8:8:8:8 conversion
111	*	111	*
112	*/	112	*/
113	static void bgr_0888(void *dst, uint32_t rgb)	113	static void bgr_0888(void *dst, uint32_t rgb)
114	{	114	{
115	((uint32_t ) dst)	115	((uint32_t ) dst)
116	= (BLUE(rgb, 8) << 16) \| (GREEN(rgb, 8) << 8) \| RED(rgb, 8);	116	= (BLUE(rgb, 8) << 16) \| (GREEN(rgb, 8) << 8) \| RED(rgb, 8);
117	}	117	}
118		118
119		119
120	/** RGB 8:8:8 conversion	120	/** RGB 8:8:8 conversion
121	*	121	*
122	*/	122	*/
123	static void rgb_888(void *dst, uint32_t rgb)	123	static void rgb_888(void *dst, uint32_t rgb)
124	{	124	{
125	((uint8_t *) dst)[0] = BLUE(rgb, 8);	125	((uint8_t *) dst)[0] = BLUE(rgb, 8);
126	((uint8_t *) dst)[1] = GREEN(rgb, 8);	126	((uint8_t *) dst)[1] = GREEN(rgb, 8);
127	((uint8_t *) dst)[2] = RED(rgb, 8);	127	((uint8_t *) dst)[2] = RED(rgb, 8);
128	}	128	}
129		129
130		130
131	/** BGR 8:8:8 conversion	131	/** BGR 8:8:8 conversion
132	*	132	*
133	*/	133	*/
134	static void bgr_888(void *dst, uint32_t rgb)	134	static void bgr_888(void *dst, uint32_t rgb)
135	{	135	{
136	((uint8_t *) dst)[0] = RED(rgb, 8);	136	((uint8_t *) dst)[0] = RED(rgb, 8);
137	((uint8_t *) dst)[1] = GREEN(rgb, 8);	137	((uint8_t *) dst)[1] = GREEN(rgb, 8);
138	((uint8_t *) dst)[2] = BLUE(rgb, 8);	138	((uint8_t *) dst)[2] = BLUE(rgb, 8);
139	}	139	}
140		140
141		141
142	/** RGB 5:5:5 conversion	142	/** RGB 5:5:5 conversion
143	*	143	*
144	*/	144	*/
145	static void rgb_555(void *dst, uint32_t rgb)	145	static void rgb_555(void *dst, uint32_t rgb)
146	{	146	{
147	((uint16_t ) dst)	147	((uint16_t ) dst)
148	= (RED(rgb, 5) << 10) \| (GREEN(rgb, 5) << 5) \| BLUE(rgb, 5);	148	= (RED(rgb, 5) << 10) \| (GREEN(rgb, 5) << 5) \| BLUE(rgb, 5);
149	}	149	}
150		150
151		151
152	/** RGB 5:6:5 conversion	152	/** RGB 5:6:5 conversion
153	*	153	*
154	*/	154	*/
155	static void rgb_565(void *dst, uint32_t rgb)	155	static void rgb_565(void *dst, uint32_t rgb)
156	{	156	{
157	((uint16_t ) dst)	157	((uint16_t ) dst)
158	= (RED(rgb, 5) << 11) \| (GREEN(rgb, 6) << 5) \| BLUE(rgb, 5);	158	= (RED(rgb, 5) << 11) \| (GREEN(rgb, 6) << 5) \| BLUE(rgb, 5);
159	}	159	}
160		160
161		161
162	/** RGB 3:2:3	162	/** RGB 3:2:3
163	*	163	*
164	* Even though we try 3:2:3 color scheme here, an 8-bit framebuffer	164	* Even though we try 3:2:3 color scheme here, an 8-bit framebuffer
165	* will most likely use a color palette. The color appearance	165	* will most likely use a color palette. The color appearance
166	* will be pretty random and depend on the default installed	166	* will be pretty random and depend on the default installed
167	* palette. This could be fixed by supporting custom palette	167	* palette. This could be fixed by supporting custom palette
168	* and setting it to simulate the 8-bit truecolor.	168	* and setting it to simulate the 8-bit truecolor.
169	*	169	*
170	* Currently we set the palette on the ia32, amd64 and sparc64 port.	170	* Currently we set the palette on the ia32, amd64 and sparc64 port.
171	*	171	*
172	* Note that the byte is being inverted by this function. The reason is	172	* Note that the byte is being inverted by this function. The reason is
173	* that we would like to use a color palette where the white color code	173	* that we would like to use a color palette where the white color code
174	* is 0 and the black color code is 255, as some machines (Sun Blade 1500)	174	* is 0 and the black color code is 255, as some machines (Sun Blade 1500)
175	* use these codes for black and white and prevent to set codes	175	* use these codes for black and white and prevent to set codes
176	* 0 and 255 to other colors.	176	* 0 and 255 to other colors.
177	*	177	*
178	*/	178	*/
179	static void rgb_323(void *dst, uint32_t rgb)	179	static void rgb_323(void *dst, uint32_t rgb)
180	{	180	{
181	((uint8_t ) dst)	181	((uint8_t ) dst)
182	= ~((RED(rgb, 3) << 5) \| (GREEN(rgb, 2) << 3) \| BLUE(rgb, 3));	182	= ~((RED(rgb, 3) << 5) \| (GREEN(rgb, 2) << 3) \| BLUE(rgb, 3));
183	}	183	}
184		184
185		185
186	/** Hide logo and refresh screen	186	/** Hide logo and refresh screen
187	*	187	*
188	*/	188	*/
189	static void logo_hide(bool silent)	189	static void logo_hide(bool silent)
190	{	190	{
191	ylogo = 0;	191	ylogo = 0;
192	ytrim = yres;	192	ytrim = yres;
193	rowtrim = rows;	193	rowtrim = rows;
194	if (!silent)	194	if (!silent)
195	fb_redraw();	195	fb_redraw();
196	}	196	}
197		197
198		198
199	/** Draw character at given position	199	/** Draw character at given position
200	*	200	*
201	*/	201	*/
202	static void glyph_draw(uint8_t glyph, unsigned int col, unsigned int row, bool silent)	202	static void glyph_draw(uint8_t glyph, unsigned int col, unsigned int row, bool silent)
203	{	203	{
204	unsigned int x = COL2X(col);	204	unsigned int x = COL2X(col);
205	unsigned int y = ROW2Y(row);	205	unsigned int y = ROW2Y(row);
206	unsigned int yd;	206	unsigned int yd;
207		207
208	if (y >= ytrim)	208	if (y >= ytrim)
209	logo_hide(silent);	209	logo_hide(silent);
210		210
211	backbuf[BB_POS(col, row)] = glyph;	211	backbuf[BB_POS(col, row)] = glyph;
212		212
213	if (!silent) {	213	if (!silent) {
214	for (yd = 0; yd < FONT_SCANLINES; yd++)	214	for (yd = 0; yd < FONT_SCANLINES; yd++)
215	memcpy(&fb_addr[FB_POS(x, y + yd + ylogo)],	215	memcpy(&fb_addr[FB_POS(x, y + yd + ylogo)],
216	&glyphs[GLYPH_POS(glyph, yd)], glyphscanline);	216	&glyphs[GLYPH_POS(glyph, yd)], glyphscanline);
217	}	217	}
218	}	218	}
219		219
220		220
221	/** Scroll screen down by one row	221	/** Scroll screen down by one row
222	*	222	*
223	*	223	*
224	*/	224	*/
225	static void screen_scroll(bool silent)	225	static void screen_scroll(bool silent)
226	{	226	{
227	if (ylogo > 0) {	227	if (ylogo > 0) {
228	logo_hide(silent);	228	logo_hide(silent);
229	return;	229	return;
230	}	230	}
231		231
232	if (!silent) {	232	if (!silent) {
233	unsigned int row;	233	unsigned int row;
234		234
235	for (row = 0; row < rows; row++) {	235	for (row = 0; row < rows; row++) {
236	unsigned int y = ROW2Y(row);	236	unsigned int y = ROW2Y(row);
237	unsigned int yd;	237	unsigned int yd;
238		238
239	for (yd = 0; yd < FONT_SCANLINES; yd++) {	239	for (yd = 0; yd < FONT_SCANLINES; yd++) {
240	unsigned int x;	240	unsigned int x;
241	unsigned int col;	241	unsigned int col;
242		242
243	for (col = 0, x = 0; col < cols; col++,	243	for (col = 0, x = 0; col < cols; col++,
244	x += FONT_WIDTH) {	244	x += FONT_WIDTH) {
245	uint8_t glyph;	245	uint8_t glyph;
246		246
247	if (row < rows - 1) {	247	if (row < rows - 1) {
248	if (backbuf[BB_POS(col, row)] ==	248	if (backbuf[BB_POS(col, row)] ==
249	backbuf[BB_POS(col, row + 1)])	249	backbuf[BB_POS(col, row + 1)])
250	continue;	250	continue;
251		251
252	glyph = backbuf[BB_POS(col, row + 1)];	252	glyph = backbuf[BB_POS(col, row + 1)];
253	} else	253	} else
254	glyph = 0;	254	glyph = 0;
255		255
256	memcpy(&fb_addr[FB_POS(x, y + yd)],	256	memcpy(&fb_addr[FB_POS(x, y + yd)],
257	&glyphs[GLYPH_POS(glyph, yd)],	257	&glyphs[GLYPH_POS(glyph, yd)],
258	glyphscanline);	258	glyphscanline);
259	}	259	}
260	}	260	}
261	}	261	}
262	}	262	}
263		263
264	memmove(backbuf, backbuf + cols, cols * (rows - 1));	264	memmove(backbuf, backbuf + cols, cols * (rows - 1));
265	memsetb(&backbuf[BB_POS(0, rows - 1)], cols, 0);	265	memsetb(&backbuf[BB_POS(0, rows - 1)], cols, 0);
266	}	266	}
267		267
268		268
269	static void cursor_put(bool silent)	269	static void cursor_put(bool silent)
270	{	270	{
271	glyph_draw(CURSOR, position % cols, position / cols, silent);	271	glyph_draw(CURSOR, position % cols, position / cols, silent);
272	}	272	}
273		273
274		274
275	static void cursor_remove(bool silent)	275	static void cursor_remove(bool silent)
276	{	276	{
277	glyph_draw(0, position % cols, position / cols, silent);	277	glyph_draw(0, position % cols, position / cols, silent);
278	}	278	}
279		279
280		280
281	/** Print character to screen	281	/** Print character to screen
282	*	282	*
283	* Emulate basic terminal commands.	283	* Emulate basic terminal commands.
284	*	284	*
285	*/	285	*/
286	static void fb_putchar(chardev_t *dev, char ch, bool silent)	286	static void fb_putchar(outdev_t *dev, char ch, bool silent)
287	{	287	{
288	spinlock_lock(&fb_lock);	288	spinlock_lock(&fb_lock);
289		289
290	switch (ch) {	290	switch (ch) {
291	case '\n':	291	case '\n':
292	cursor_remove(silent);	292	cursor_remove(silent);
293	position += cols;	293	position += cols;
294	position -= position % cols;	294	position -= position % cols;
295	break;	295	break;
296	case '\r':	296	case '\r':
297	cursor_remove(silent);	297	cursor_remove(silent);
298	position -= position % cols;	298	position -= position % cols;
299	break;	299	break;
300	case '\b':	300	case '\b':
301	cursor_remove(silent);	301	cursor_remove(silent);
302	if (position % cols)	302	if (position % cols)
303	position--;	303	position--;
304	break;	304	break;
305	case '\t':	305	case '\t':
306	cursor_remove(silent);	306	cursor_remove(silent);
307	do {	307	do {
308	glyph_draw((uint8_t) ' ', position % cols,	308	glyph_draw((uint8_t) ' ', position % cols,
309	position / cols, silent);	309	position / cols, silent);
310	position++;	310	position++;
311	} while ((position % 8) && (position < cols * rows));	311	} while ((position % 8) && (position < cols * rows));
312	break;	312	break;
313	default:	313	default:
314	glyph_draw((uint8_t) ch, position % cols,	314	glyph_draw((uint8_t) ch, position % cols,
315	position / cols, silent);	315	position / cols, silent);
316	position++;	316	position++;
317	}	317	}
318		318
319	if (position >= cols * rows) {	319	if (position >= cols * rows) {
320	position -= cols;	320	position -= cols;
321	screen_scroll(silent);	321	screen_scroll(silent);
322	}	322	}
323		323
324	cursor_put(silent);	324	cursor_put(silent);
325		325
326	spinlock_unlock(&fb_lock);	326	spinlock_unlock(&fb_lock);
327	}	327	}
328		328
329	static chardev_t framebuffer;	329	static outdev_t fb_console;
330	static chardev_operations_t fb_ops = {	330	static outdev_operations_t fb_ops = {
331	.write = fb_putchar,	331	.write = fb_putchar
332	};	332	};
333		333
334		334
335	/** Render glyphs	335	/** Render glyphs
336	*	336	*
337	* Convert glyphs from device independent font	337	* Convert glyphs from device independent font
338	* description to current visual representation.	338	* description to current visual representation.
339	*	339	*
340	*/	340	*/
341	static void glyphs_render(void)	341	static void glyphs_render(void)
342	{	342	{
343	/* Prerender glyphs */	343	/* Prerender glyphs */
344	unsigned int glyph;	344	unsigned int glyph;
345		345
346	for (glyph = 0; glyph < FONT_GLYPHS; glyph++) {	346	for (glyph = 0; glyph < FONT_GLYPHS; glyph++) {
347	unsigned int y;	347	unsigned int y;
348		348
349	for (y = 0; y < FONT_SCANLINES; y++) {	349	for (y = 0; y < FONT_SCANLINES; y++) {
350	unsigned int x;	350	unsigned int x;
351		351
352	for (x = 0; x < FONT_WIDTH; x++) {	352	for (x = 0; x < FONT_WIDTH; x++) {
353	void *dst = &glyphs[GLYPH_POS(glyph, y) +	353	void *dst = &glyphs[GLYPH_POS(glyph, y) +
354	x * pixelbytes];	354	x * pixelbytes];
355	uint32_t rgb = (fb_font[ROW2Y(glyph) + y] &	355	uint32_t rgb = (fb_font[ROW2Y(glyph) + y] &
356	(1 << (7 - x))) ? FG_COLOR : BG_COLOR;	356	(1 << (7 - x))) ? FG_COLOR : BG_COLOR;
357	rgb_conv(dst, rgb);	357	rgb_conv(dst, rgb);
358	}	358	}
359	}	359	}
360	}	360	}
361		361
362	/* Prerender background scanline */	362	/* Prerender background scanline */
363	unsigned int x;	363	unsigned int x;
364		364
365	for (x = 0; x < xres; x++)	365	for (x = 0; x < xres; x++)
366	rgb_conv(&bgscan[x * pixelbytes], BG_COLOR);	366	rgb_conv(&bgscan[x * pixelbytes], BG_COLOR);
367	}	367	}
368		368
369		369
370	/** Refresh the screen	370	/** Refresh the screen
371	*	371	*
372	*/	372	*/
373	void fb_redraw(void)	373	void fb_redraw(void)
374	{	374	{
375	if (ylogo > 0) {	375	if (ylogo > 0) {
376	unsigned int y;	376	unsigned int y;
377		377
378	for (y = 0; y < LOGO_HEIGHT; y++) {	378	for (y = 0; y < LOGO_HEIGHT; y++) {
379	unsigned int x;	379	unsigned int x;
380		380
381	for (x = 0; x < xres; x++)	381	for (x = 0; x < xres; x++)
382	rgb_conv(&fb_addr[FB_POS(x, y)],	382	rgb_conv(&fb_addr[FB_POS(x, y)],
383	(x < LOGO_WIDTH) ?	383	(x < LOGO_WIDTH) ?
384	fb_logo[y * LOGO_WIDTH + x] :	384	fb_logo[y * LOGO_WIDTH + x] :
385	LOGO_COLOR);	385	LOGO_COLOR);
386	}	386	}
387	}	387	}
388		388
389	unsigned int row;	389	unsigned int row;
390		390
391	for (row = 0; row < rowtrim; row++) {	391	for (row = 0; row < rowtrim; row++) {
392	unsigned int y = ylogo + ROW2Y(row);	392	unsigned int y = ylogo + ROW2Y(row);
393	unsigned int yd;	393	unsigned int yd;
394		394
395	for (yd = 0; yd < FONT_SCANLINES; yd++) {	395	for (yd = 0; yd < FONT_SCANLINES; yd++) {
396	unsigned int x;	396	unsigned int x;
397	unsigned int col;	397	unsigned int col;
398		398
399	for (col = 0, x = 0; col < cols;	399	for (col = 0, x = 0; col < cols;
400	col++, x += FONT_WIDTH) {	400	col++, x += FONT_WIDTH) {
401	void *d = &fb_addr[FB_POS(x, y + yd)];	401	void *d = &fb_addr[FB_POS(x, y + yd)];
402	void *s = &glyphs[GLYPH_POS(backbuf[BB_POS(col,	402	void *s = &glyphs[GLYPH_POS(backbuf[BB_POS(col,
403	row)], yd)];	403	row)], yd)];
404	memcpy(d, s, glyphscanline);	404	memcpy(d, s, glyphscanline);
405	}	405	}
406	}	406	}
407	}	407	}
408		408
409	if (COL2X(cols) < xres) {	409	if (COL2X(cols) < xres) {
410	unsigned int y;	410	unsigned int y;
411	unsigned int size = (xres - COL2X(cols)) * pixelbytes;	411	unsigned int size = (xres - COL2X(cols)) * pixelbytes;
412		412
413	for (y = ylogo; y < yres; y++)	413	for (y = ylogo; y < yres; y++)
414	memcpy(&fb_addr[FB_POS(COL2X(cols), y)], bgscan, size);	414	memcpy(&fb_addr[FB_POS(COL2X(cols), y)], bgscan, size);
415	}	415	}
416		416
417	if (ROW2Y(rowtrim) + ylogo < yres) {	417	if (ROW2Y(rowtrim) + ylogo < yres) {
418	unsigned int y;	418	unsigned int y;
419		419
420	for (y = ROW2Y(rowtrim) + ylogo; y < yres; y++)	420	for (y = ROW2Y(rowtrim) + ylogo; y < yres; y++)
421	memcpy(&fb_addr[FB_POS(0, y)], bgscan, bgscanbytes);	421	memcpy(&fb_addr[FB_POS(0, y)], bgscan, bgscanbytes);
422	}	422	}
423	}	423	}
424		424
425		425
426	/** Initialize framebuffer as a chardev output device	426	/** Initialize framebuffer as a output character device
427	*	427	*
428	* @param addr Physical address of the framebuffer	428	* @param addr Physical address of the framebuffer
429	* @param x Screen width in pixels	429	* @param x Screen width in pixels
430	* @param y Screen height in pixels	430	* @param y Screen height in pixels
431	* @param scan Bytes per one scanline	431	* @param scan Bytes per one scanline
432	* @param visual Color model	432	* @param visual Color model
433	*	433	*
434	*/	434	*/
435	void fb_init(fb_properties_t *props)	435	void fb_init(fb_properties_t *props)
436	{	436	{
437	switch (props->visual) {	437	switch (props->visual) {
438	case VISUAL_INDIRECT_8:	438	case VISUAL_INDIRECT_8:
439	rgb_conv = rgb_323;	439	rgb_conv = rgb_323;
440	pixelbytes = 1;	440	pixelbytes = 1;
441	break;	441	break;
442	case VISUAL_RGB_5_5_5:	442	case VISUAL_RGB_5_5_5:
443	rgb_conv = rgb_555;	443	rgb_conv = rgb_555;
444	pixelbytes = 2;	444	pixelbytes = 2;
445	break;	445	break;
446	case VISUAL_RGB_5_6_5:	446	case VISUAL_RGB_5_6_5:
447	rgb_conv = rgb_565;	447	rgb_conv = rgb_565;
448	pixelbytes = 2;	448	pixelbytes = 2;
449	break;	449	break;
450	case VISUAL_RGB_8_8_8:	450	case VISUAL_RGB_8_8_8:
451	rgb_conv = rgb_888;	451	rgb_conv = rgb_888;
452	pixelbytes = 3;	452	pixelbytes = 3;
453	break;	453	break;
454	case VISUAL_BGR_8_8_8:	454	case VISUAL_BGR_8_8_8:
455	rgb_conv = bgr_888;	455	rgb_conv = bgr_888;
456	pixelbytes = 3;	456	pixelbytes = 3;
457	break;	457	break;
458	case VISUAL_RGB_8_8_8_0:	458	case VISUAL_RGB_8_8_8_0:
459	rgb_conv = rgb_888;	459	rgb_conv = rgb_888;
460	pixelbytes = 4;	460	pixelbytes = 4;
461	break;	461	break;
462	case VISUAL_RGB_0_8_8_8:	462	case VISUAL_RGB_0_8_8_8:
463	rgb_conv = rgb_0888;	463	rgb_conv = rgb_0888;
464	pixelbytes = 4;	464	pixelbytes = 4;
465	break;	465	break;
466	case VISUAL_BGR_0_8_8_8:	466	case VISUAL_BGR_0_8_8_8:
467	rgb_conv = bgr_0888;	467	rgb_conv = bgr_0888;
468	pixelbytes = 4;	468	pixelbytes = 4;
469	break;	469	break;
470	default:	470	default:
471	panic("Unsupported visual.");	471	panic("Unsupported visual.");
472	}	472	}
473		473
474	xres = props->x;	474	xres = props->x;
475	yres = props->y;	475	yres = props->y;
476	scanline = props->scan;	476	scanline = props->scan;
477		477
478	cols = X2COL(xres);	478	cols = X2COL(xres);
479	rows = Y2ROW(yres);	479	rows = Y2ROW(yres);
480		480
481	if (yres > ylogo) {	481	if (yres > ylogo) {
482	ylogo = LOGO_HEIGHT;	482	ylogo = LOGO_HEIGHT;
483	rowtrim = rows - Y2ROW(ylogo);	483	rowtrim = rows - Y2ROW(ylogo);
484	if (ylogo % FONT_SCANLINES > 0)	484	if (ylogo % FONT_SCANLINES > 0)
485	rowtrim--;	485	rowtrim--;
486	ytrim = ROW2Y(rowtrim);	486	ytrim = ROW2Y(rowtrim);
487	} else {	487	} else {
488	ylogo = 0;	488	ylogo = 0;
489	ytrim = yres;	489	ytrim = yres;
490	rowtrim = rows;	490	rowtrim = rows;
491	}	491	}
492		492
493	glyphscanline = FONT_WIDTH * pixelbytes;	493	glyphscanline = FONT_WIDTH * pixelbytes;
494	glyphbytes = ROW2Y(glyphscanline);	494	glyphbytes = ROW2Y(glyphscanline);
495	bgscanbytes = xres * pixelbytes;	495	bgscanbytes = xres * pixelbytes;
496		496
497	unsigned int fbsize = scanline * yres;	497	unsigned int fbsize = scanline * yres;
498	unsigned int bbsize = cols * rows;	498	unsigned int bbsize = cols * rows;
499	unsigned int glyphsize = FONT_GLYPHS * glyphbytes;	499	unsigned int glyphsize = FONT_GLYPHS * glyphbytes;
500		500

Subversion Repositories HelenOS

(root)/branches/dynload/kernel/genarch/src/fb/fb.c – Rev 4343 → 4346