WebSVN – HelenOS – Diff – //branches/dynload/kernel/genarch/src/fb/fb.c



#include <arch/types.h>
 
SPINLOCK_INITIALIZE(fb_lock);
 
static uint8_t *fb_addr;
static uint16_t *backbuf;
static uint8_t *glyphs;
static uint8_t *bgscan;
 
static unsigned int xres;
static unsigned int yres;

static unsigned int rows;
static unsigned int position = 0;
 
#define BG_COLOR     0x000080
#define FG_COLOR     0xffff00
#define INV_COLOR    0xaaaaaa
 
#define CURSOR       0x2588
 
#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))
 

 
 
/** Draw character at given position
 *
 */
static void glyph_draw(uint16_t glyph, unsigned int col, unsigned int row, bool silent)
{
    unsigned int x = COL2X(col);
    unsigned int y = ROW2Y(row);
    unsigned int yd;
   

                unsigned int x;
                unsigned int col;
               
                for (col = 0, x = 0; col < cols; col++,
                    x += FONT_WIDTH) {
                    uint16_t glyph;
                   
                    if (row < rows - 1) {
                        if (backbuf[BB_POS(col, row)] ==
                            backbuf[BB_POS(col, row + 1)])
                            continue;

                }
            }
        }
    }
   
    memmove(backbuf, &backbuf[BB_POS(0, 1)], cols * (rows - 1) * sizeof(uint16_t));
    memsetw(&backbuf[BB_POS(0, rows - 1)], cols, 0);
}
 
 
static void cursor_put(bool silent)
{
    glyph_draw(fb_font_glyph(CURSOR), position % cols, position / cols, silent);
}
 
 
static void cursor_remove(bool silent)
{
    glyph_draw(fb_font_glyph(0), position % cols, position / cols, silent);
}
 
 
/** Print character to screen
 *
 * Emulate basic terminal commands.
 *
 */
static void fb_putchar(outdev_t *dev, wchar_t ch, bool silent)
{
    spinlock_lock(&fb_lock);
   
    switch (ch) {
    case '\n':

            position--;
        break;
    case '\t':
        cursor_remove(silent);
        do {
            glyph_draw(fb_font_glyph(' '), position % cols,
                position / cols, silent);
            position++;
        } while ((position % 8) && (position < cols * rows));
        break;
    default:
        glyph_draw(fb_font_glyph(ch), position % cols,
            position / cols, silent);
        position++;
    }
   
    if (position >= cols * rows) {

 *
 */
static void glyphs_render(void)
{
    /* Prerender glyphs */
    uint16_t glyph;
   
    for (glyph = 0; glyph < FONT_GLYPHS; glyph++) {
        uint32_t fg_color;
       
        if (glyph == FONT_GLYPHS - 1)
            fg_color = INV_COLOR;
        else
            fg_color = FG_COLOR;
       
        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[glyph][y] &
                    (1 << (7 - x))) ? fg_color : BG_COLOR;
                rgb_conv(dst, rgb);
            }
        }
    }
   

            unsigned int x;
            unsigned int col;
           
            for (col = 0, x = 0; col < cols;
                col++, x += FONT_WIDTH) {
                uint16_t glyph = backbuf[BB_POS(col, row)];
                void *dst = &fb_addr[FB_POS(x, y + yd)];
                void *src = &glyphs[GLYPH_POS(glyph, yd)];
 
                memcpy(dst, src, glyphscanline);
            }
        }
    }
   
    if (COL2X(cols) < xres) {

   
    glyphscanline = FONT_WIDTH * pixelbytes;
    glyphbytes = ROW2Y(glyphscanline);
    bgscanbytes = xres * pixelbytes;
   
    size_t fbsize = scanline * yres;
    size_t bbsize = cols * rows * sizeof(uint16_t);
    size_t glyphsize = FONT_GLYPHS * glyphbytes;
   
    backbuf = (uint16_t *) malloc(bbsize, 0);
    if (!backbuf)
        panic("Unable to allocate backbuffer.");
   
    glyphs = (uint8_t *) malloc(glyphsize, 0);
    if (!glyphs)

   
    bgscan = malloc(bgscanbytes, 0);
    if (!bgscan)
        panic("Unable to allocate background pixel.");
   
    memsetw(backbuf, cols * rows, 0);
   
    glyphs_render();
   
    fb_addr = (uint8_t *) hw_map((uintptr_t) props->addr, fbsize);
   

Rev 4346	Rev 4347
Line 51...	Line 51...
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 uint16_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;
Line 75...	Line 75...
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	#define INV_COLOR 0xaaaaaa
80		81
81	#define CURSOR 219	82	#define CURSOR 0x2588
82		83
83	#define RED(x, bits) ((x >> (8 + 8 + 8 - bits)) & ((1 << bits) - 1))	84	#define RED(x, bits) ((x >> (8 + 8 + 8 - bits)) & ((1 << bits) - 1))
84	#define GREEN(x, bits) ((x >> (8 + 8 - bits)) & ((1 << bits) - 1))	85	#define GREEN(x, bits) ((x >> (8 + 8 - bits)) & ((1 << bits) - 1))
85	#define BLUE(x, bits) ((x >> (8 - bits)) & ((1 << bits) - 1))	86	#define BLUE(x, bits) ((x >> (8 - bits)) & ((1 << bits) - 1))
86		87
Line 197...	Line 198...
197		198
198		199
199	/** Draw character at given position	200	/** Draw character at given position
200	*	201	*
201	*/	202	*/
202	static void glyph_draw(uint8_t glyph, unsigned int col, unsigned int row, bool silent)	203	static void glyph_draw(uint16_t glyph, unsigned int col, unsigned int row, bool silent)
203	{	204	{
204	unsigned int x = COL2X(col);	205	unsigned int x = COL2X(col);
205	unsigned int y = ROW2Y(row);	206	unsigned int y = ROW2Y(row);
206	unsigned int yd;	207	unsigned int yd;
207		208
Line 240...	Line 241...
240	unsigned int x;	241	unsigned int x;
241	unsigned int col;	242	unsigned int col;
242		243
243	for (col = 0, x = 0; col < cols; col++,	244	for (col = 0, x = 0; col < cols; col++,
244	x += FONT_WIDTH) {	245	x += FONT_WIDTH) {
245	uint8_t glyph;	246	uint16_t glyph;
246		247
247	if (row < rows - 1) {	248	if (row < rows - 1) {
248	if (backbuf[BB_POS(col, row)] ==	249	if (backbuf[BB_POS(col, row)] ==
249	backbuf[BB_POS(col, row + 1)])	250	backbuf[BB_POS(col, row + 1)])
250	continue;	251	continue;
Line 259...	Line 260...
259	}	260	}
260	}	261	}
261	}	262	}
262	}	263	}
263		264
264	memmove(backbuf, backbuf + cols, cols * (rows - 1));	265	memmove(backbuf, &backbuf[BB_POS(0, 1)], cols * (rows - 1) * sizeof(uint16_t));
265	memsetb(&backbuf[BB_POS(0, rows - 1)], cols, 0);	266	memsetw(&backbuf[BB_POS(0, rows - 1)], cols, 0);
266	}	267	}
267		268
268		269
269	static void cursor_put(bool silent)	270	static void cursor_put(bool silent)
270	{	271	{
271	glyph_draw(CURSOR, position % cols, position / cols, silent);	272	glyph_draw(fb_font_glyph(CURSOR), position % cols, position / cols, silent);
272	}	273	}
273		274
274		275
275	static void cursor_remove(bool silent)	276	static void cursor_remove(bool silent)
276	{	277	{
277	glyph_draw(0, position % cols, position / cols, silent);	278	glyph_draw(fb_font_glyph(0), position % cols, position / cols, silent);
278	}	279	}
279		280
280		281
281	/** Print character to screen	282	/** Print character to screen
282	*	283	*
283	* Emulate basic terminal commands.	284	* Emulate basic terminal commands.
284	*	285	*
285	*/	286	*/
286	static void fb_putchar(outdev_t *dev, char ch, bool silent)	287	static void fb_putchar(outdev_t *dev, wchar_t ch, bool silent)
287	{	288	{
288	spinlock_lock(&fb_lock);	289	spinlock_lock(&fb_lock);
289		290
290	switch (ch) {	291	switch (ch) {
291	case '\n':	292	case '\n':
Line 303...	Line 304...
303	position--;	304	position--;
304	break;	305	break;
305	case '\t':	306	case '\t':
306	cursor_remove(silent);	307	cursor_remove(silent);
307	do {	308	do {
308	glyph_draw((uint8_t) ' ', position % cols,	309	glyph_draw(fb_font_glyph(' '), position % cols,
309	position / cols, silent);	310	position / cols, silent);
310	position++;	311	position++;
311	} while ((position % 8) && (position < cols * rows));	312	} while ((position % 8) && (position < cols * rows));
312	break;	313	break;
313	default:	314	default:
314	glyph_draw((uint8_t) ch, position % cols,	315	glyph_draw(fb_font_glyph(ch), position % cols,
315	position / cols, silent);	316	position / cols, silent);
316	position++;	317	position++;
317	}	318	}
318		319
319	if (position >= cols * rows) {	320	if (position >= cols * rows) {
Line 339...	Line 340...
339	*	340	*
340	*/	341	*/
341	static void glyphs_render(void)	342	static void glyphs_render(void)
342	{	343	{
343	/* Prerender glyphs */	344	/* Prerender glyphs */
344	unsigned int glyph;	345	uint16_t glyph;
345		346
346	for (glyph = 0; glyph < FONT_GLYPHS; glyph++) {	347	for (glyph = 0; glyph < FONT_GLYPHS; glyph++) {
-		348	uint32_t fg_color;
-		349
-		350	if (glyph == FONT_GLYPHS - 1)
-		351	fg_color = INV_COLOR;
-		352	else
-		353	fg_color = FG_COLOR;
-		354
347	unsigned int y;	355	unsigned int y;
348		356
349	for (y = 0; y < FONT_SCANLINES; y++) {	357	for (y = 0; y < FONT_SCANLINES; y++) {
350	unsigned int x;	358	unsigned int x;
351		359
352	for (x = 0; x < FONT_WIDTH; x++) {	360	for (x = 0; x < FONT_WIDTH; x++) {
353	void *dst = &glyphs[GLYPH_POS(glyph, y) +	361	void *dst = &glyphs[GLYPH_POS(glyph, y) +
354	x * pixelbytes];	362	x * pixelbytes];
355	uint32_t rgb = (fb_font[ROW2Y(glyph) + y] &	363	uint32_t rgb = (fb_font[glyph][y] &
356	(1 << (7 - x))) ? FG_COLOR : BG_COLOR;	364	(1 << (7 - x))) ? fg_color : BG_COLOR;
357	rgb_conv(dst, rgb);	365	rgb_conv(dst, rgb);
358	}	366	}
359	}	367	}
360	}	368	}
361		369
Line 396...	Line 404...
396	unsigned int x;	404	unsigned int x;
397	unsigned int col;	405	unsigned int col;
398		406
399	for (col = 0, x = 0; col < cols;	407	for (col = 0, x = 0; col < cols;
400	col++, x += FONT_WIDTH) {	408	col++, x += FONT_WIDTH) {
-		409	uint16_t glyph = backbuf[BB_POS(col, row)];
401	void *d = &fb_addr[FB_POS(x, y + yd)];	410	void *dst = &fb_addr[FB_POS(x, y + yd)];
402	void *s = &glyphs[GLYPH_POS(backbuf[BB_POS(col,	411	void *src = &glyphs[GLYPH_POS(glyph, yd)];
403	row)], yd)];	-
404	memcpy(d, s, glyphscanline);	412	memcpy(dst, src, glyphscanline);
405	}	413	}
406	}	414	}
407	}	415	}
408		416
409	if (COL2X(cols) < xres) {	417	if (COL2X(cols) < xres) {
Line 492...	Line 500...
492		500
493	glyphscanline = FONT_WIDTH * pixelbytes;	501	glyphscanline = FONT_WIDTH * pixelbytes;
494	glyphbytes = ROW2Y(glyphscanline);	502	glyphbytes = ROW2Y(glyphscanline);
495	bgscanbytes = xres * pixelbytes;	503	bgscanbytes = xres * pixelbytes;
496		504
497	unsigned int fbsize = scanline * yres;	505	size_t fbsize = scanline * yres;
498	unsigned int bbsize = cols * rows;	506	size_t bbsize = cols * rows * sizeof(uint16_t);
499	unsigned int glyphsize = FONT_GLYPHS * glyphbytes;	507	size_t glyphsize = FONT_GLYPHS * glyphbytes;
500		508
501	backbuf = (uint8_t *) malloc(bbsize, 0);	509	backbuf = (uint16_t *) malloc(bbsize, 0);
502	if (!backbuf)	510	if (!backbuf)
503	panic("Unable to allocate backbuffer.");	511	panic("Unable to allocate backbuffer.");
504		512
505	glyphs = (uint8_t *) malloc(glyphsize, 0);	513	glyphs = (uint8_t *) malloc(glyphsize, 0);
506	if (!glyphs)	514	if (!glyphs)
Line 508...	Line 516...
508		516
509	bgscan = malloc(bgscanbytes, 0);	517	bgscan = malloc(bgscanbytes, 0);
510	if (!bgscan)	518	if (!bgscan)
511	panic("Unable to allocate background pixel.");	519	panic("Unable to allocate background pixel.");
512		520
513	memsetb(backbuf, bbsize, 0);	521	memsetw(backbuf, cols * rows, 0);
514		522
515	glyphs_render();	523	glyphs_render();
516		524
517	fb_addr = (uint8_t *) hw_map((uintptr_t) props->addr, fbsize);	525	fb_addr = (uint8_t *) hw_map((uintptr_t) props->addr, fbsize);
518		526

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(root)//branches/dynload/kernel/genarch/src/fb/fb.c – Rev 4346 → 4347