WebSVN – HelenOS – Diff – /trunk/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;

 
 
/** 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++) {
        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 4093	Rev 4177
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 197...	Line 197...
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(uint16_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
Line 240...	Line 240...
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	uint16_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;
Line 259...	Line 259...
259	}	259	}
260	}	260	}
261	}	261	}
262	}	262	}
263		263
264	memmove(backbuf, backbuf + cols, cols * (rows - 1));	264	memmove(backbuf, &backbuf[BB_POS(0, 1)], cols * (rows - 1) * sizeof(uint16_t));
265	memsetb(&backbuf[BB_POS(0, rows - 1)], cols, 0);	265	memsetw(&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(fb_font_glyph(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(fb_font_glyph(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(outdev_t *dev, char ch, bool silent)	286	static void fb_putchar(outdev_t *dev, wchar_t 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':
Line 303...	Line 303...
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(fb_font_glyph(' '), 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(fb_font_glyph(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) {
Line 339...	Line 339...
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	uint16_t 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[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	}
Line 396...	Line 396...
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	uint16_t glyph = backbuf[BB_POS(col, row)];
401	void *d = &fb_addr[FB_POS(x, y + yd)];	402	void *dst = &fb_addr[FB_POS(x, y + yd)];
402	void *s = &glyphs[GLYPH_POS(backbuf[BB_POS(col,	403	void *src = &glyphs[GLYPH_POS(glyph, yd)];
403	row)], yd)];	-
404	memcpy(d, s, glyphscanline);	404	memcpy(dst, src, glyphscanline);
405	}	405	}
406	}	406	}
407	}	407	}
408		408
409	if (COL2X(cols) < xres) {	409	if (COL2X(cols) < xres) {
Line 492...	Line 492...
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	size_t fbsize = scanline * yres;
498	unsigned int bbsize = cols * rows;	498	size_t bbsize = cols * rows * sizeof(uint16_t);
499	unsigned int glyphsize = FONT_GLYPHS * glyphbytes;	499	size_t glyphsize = FONT_GLYPHS * glyphbytes;
500		500
501	backbuf = (uint8_t *) malloc(bbsize, 0);	501	backbuf = (uint16_t *) malloc(bbsize, 0);
502	if (!backbuf)	502	if (!backbuf)
503	panic("Unable to allocate backbuffer.");	503	panic("Unable to allocate backbuffer.");
504		504
505	glyphs = (uint8_t *) malloc(glyphsize, 0);	505	glyphs = (uint8_t *) malloc(glyphsize, 0);
506	if (!glyphs)	506	if (!glyphs)
Line 508...	Line 508...
508		508
509	bgscan = malloc(bgscanbytes, 0);	509	bgscan = malloc(bgscanbytes, 0);
510	if (!bgscan)	510	if (!bgscan)
511	panic("Unable to allocate background pixel.");	511	panic("Unable to allocate background pixel.");
512		512
513	memsetb(backbuf, bbsize, 0);	513	memsetw(backbuf, cols * rows, 0);
514		514
515	glyphs_render();	515	glyphs_render();
516		516
517	fb_addr = (uint8_t *) hw_map((uintptr_t) props->addr, fbsize);	517	fb_addr = (uint8_t *) hw_map((uintptr_t) props->addr, fbsize);
518		518

Subversion Repositories HelenOS

(root)/trunk/kernel/genarch/src/fb/fb.c @ 4685 – Rev 4093 → 4177