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



 
#include "helenos.xbm"
 
SPINLOCK_INITIALIZE(fb_lock);
 
static uint8_t *fbaddress = NULL;
 
static uint8_t *blankline = NULL;
static uint8_t *dbbuffer = NULL; /* Buffer for fast scrolling console */
static int dboffset;
 
static unsigned int xres = 0;
static unsigned int yres = 0;
static unsigned int scanline = 0;

    return (*(int *)src) & 0xffffff;
}
 
static void rgb_3byte(void *dst, int rgb)
{
    uint8_t *scr = dst;
#if (defined(BIG_ENDIAN) || defined(FB_BIG_ENDIAN))
    scr[0] = RED(rgb, 8);
    scr[1] = GREEN(rgb, 8);
    scr[2] = BLUE(rgb, 8);
#else

#endif
}
 
static int byte3_rgb(void *src)
{
    uint8_t *scr = src;
#if (defined(BIG_ENDIAN) || defined(FB_BIG_ENDIAN))
    return scr[0] << 16 | scr[1] << 8 | scr[2];
#else
    return scr[2] << 16 | scr[1] << 8 | scr[0];
#endif  

 
/**  16-bit depth (5:6:5) */
static void rgb_2byte(void *dst, int rgb)
{
    /* 5-bit, 6-bits, 5-bits */
    *((uint16_t *)(dst)) = RED(rgb, 5) << 11 | GREEN(rgb, 6) << 5 | BLUE(rgb, 5);
}
 
/** 16-bit depth (5:6:5) */
static int byte2_rgb(void *src)
{
    int color = *(uint16_t *)(src);
    return (((color >> 11) & 0x1f) << (16 + 3)) | (((color >> 5) & 0x3f) << (8 + 2)) | ((color & 0x1f) << 3);
}
 
/** Put pixel - 8-bit depth (3:2:3) */
static void rgb_1byte(void *dst, int rgb)
{
    *(uint8_t *)dst = RED(rgb, 3) << 5 | GREEN(rgb, 2) << 3 | BLUE(rgb, 3);
}
 
/** Return pixel color - 8-bit depth (3:2:3) */
static int byte1_rgb(void *src)
{
    int color = *(uint8_t *)src;
    return (((color >> 5) & 0x7) << (16 + 5)) | (((color >> 3) & 0x3) << (8 + 6)) | ((color & 0x7) << 5);
}
 
static void putpixel(unsigned int x, unsigned int y, int color)
{

 
 
/** Scroll screen one row up */
static void scroll_screen(void)
{
    uint8_t *lastline = &fbaddress[(rows - 1) * ROW_BYTES];
    int firstsz;
 
    if (dbbuffer) {
        memcpy(&dbbuffer[dboffset*scanline], blankline, FONT_SCANLINES*scanline);
       

 
/***************************************************************/
/* Character-console functions */
 
/** Draw character at given position */
static void draw_glyph(uint8_t glyph, unsigned int col, unsigned int row)
{
    unsigned int y;
 
    for (y = 0; y < FONT_SCANLINES; y++)
        draw_glyph_line(fb_font[glyph * FONT_SCANLINES + y], col * COL_WIDTH, row * FONT_SCANLINES + y);

 * @param y    Screen height in pixels
 * @param bpp  Bits per pixel (8, 16, 24, 32)
 * @param scan Bytes per one scanline
 *
 */
void fb_init(uintptr_t addr, unsigned int x, unsigned int y, unsigned int bpp, unsigned int scan)
{
    switch (bpp) {
        case 8:
            rgb2scr = rgb_1byte;
            scr2rgb = byte1_rgb;

    }
   
    unsigned int fbsize = scan * y;
   
    /* Map the framebuffer */
    fbaddress = (uint8_t *) hw_map((uintptr_t) addr, fbsize);
   
    xres = x;
    yres = y;
    bitspp = bpp;
    scanline = scan;

    if (!dbbuffer)
        printf("Failed to allocate scroll buffer.\n");
    dboffset = 0;
 
    /* Initialized blank line */
    blankline = (uint8_t *) malloc(ROW_BYTES, FRAME_ATOMIC);
    if (!blankline)
        panic("Failed to allocate blank line for framebuffer.");
    for (y=0; y < FONT_SCANLINES; y++)
        for (x=0; x < xres; x++)
            (*rgb2scr)(&blankline[POINTPOS(x,y)],BGCOLOR);

Rev 1766	Rev 1780
Line 47...	Line 47...
47		47
48	#include "helenos.xbm"	48	#include "helenos.xbm"
49		49
50	SPINLOCK_INITIALIZE(fb_lock);	50	SPINLOCK_INITIALIZE(fb_lock);
51		51
52	static __u8 *fbaddress = NULL;	52	static uint8_t *fbaddress = NULL;
53		53
54	static __u8 *blankline = NULL;	54	static uint8_t *blankline = NULL;
55	static __u8 dbbuffer = NULL; / Buffer for fast scrolling console */	55	static uint8_t dbbuffer = NULL; / Buffer for fast scrolling console */
56	static int dboffset;	56	static int dboffset;
57		57
58	static unsigned int xres = 0;	58	static unsigned int xres = 0;
59	static unsigned int yres = 0;	59	static unsigned int yres = 0;
60	static unsigned int scanline = 0;	60	static unsigned int scanline = 0;
Line 96...	Line 96...
96	return ((int )src) & 0xffffff;	96	return ((int )src) & 0xffffff;
97	}	97	}
98		98
99	static void rgb_3byte(void *dst, int rgb)	99	static void rgb_3byte(void *dst, int rgb)
100	{	100	{
101	__u8 *scr = dst;	101	uint8_t *scr = dst;
102	#if (defined(BIG_ENDIAN) \|\| defined(FB_BIG_ENDIAN))	102	#if (defined(BIG_ENDIAN) \|\| defined(FB_BIG_ENDIAN))
103	scr[0] = RED(rgb, 8);	103	scr[0] = RED(rgb, 8);
104	scr[1] = GREEN(rgb, 8);	104	scr[1] = GREEN(rgb, 8);
105	scr[2] = BLUE(rgb, 8);	105	scr[2] = BLUE(rgb, 8);
106	#else	106	#else
Line 110...	Line 110...
110	#endif	110	#endif
111	}	111	}
112		112
113	static int byte3_rgb(void *src)	113	static int byte3_rgb(void *src)
114	{	114	{
115	__u8 *scr = src;	115	uint8_t *scr = src;
116	#if (defined(BIG_ENDIAN) \|\| defined(FB_BIG_ENDIAN))	116	#if (defined(BIG_ENDIAN) \|\| defined(FB_BIG_ENDIAN))
117	return scr[0] << 16 \| scr[1] << 8 \| scr[2];	117	return scr[0] << 16 \| scr[1] << 8 \| scr[2];
118	#else	118	#else
119	return scr[2] << 16 \| scr[1] << 8 \| scr[0];	119	return scr[2] << 16 \| scr[1] << 8 \| scr[0];
120	#endif	120	#endif
Line 122...	Line 122...
122		122
123	/** 16-bit depth (5:6:5) */	123	/** 16-bit depth (5:6:5) */
124	static void rgb_2byte(void *dst, int rgb)	124	static void rgb_2byte(void *dst, int rgb)
125	{	125	{
126	/* 5-bit, 6-bits, 5-bits */	126	/* 5-bit, 6-bits, 5-bits */
127	((__u16 )(dst)) = RED(rgb, 5) << 11 \| GREEN(rgb, 6) << 5 \| BLUE(rgb, 5);	127	((uint16_t )(dst)) = RED(rgb, 5) << 11 \| GREEN(rgb, 6) << 5 \| BLUE(rgb, 5);
128	}	128	}
129		129
130	/** 16-bit depth (5:6:5) */	130	/** 16-bit depth (5:6:5) */
131	static int byte2_rgb(void *src)	131	static int byte2_rgb(void *src)
132	{	132	{
133	int color = (__u16 )(src);	133	int color = (uint16_t )(src);
134	return (((color >> 11) & 0x1f) << (16 + 3)) \| (((color >> 5) & 0x3f) << (8 + 2)) \| ((color & 0x1f) << 3);	134	return (((color >> 11) & 0x1f) << (16 + 3)) \| (((color >> 5) & 0x3f) << (8 + 2)) \| ((color & 0x1f) << 3);
135	}	135	}
136		136
137	/** Put pixel - 8-bit depth (3:2:3) */	137	/** Put pixel - 8-bit depth (3:2:3) */
138	static void rgb_1byte(void *dst, int rgb)	138	static void rgb_1byte(void *dst, int rgb)
139	{	139	{
140	(__u8 )dst = RED(rgb, 3) << 5 \| GREEN(rgb, 2) << 3 \| BLUE(rgb, 3);	140	(uint8_t )dst = RED(rgb, 3) << 5 \| GREEN(rgb, 2) << 3 \| BLUE(rgb, 3);
141	}	141	}
142		142
143	/** Return pixel color - 8-bit depth (3:2:3) */	143	/** Return pixel color - 8-bit depth (3:2:3) */
144	static int byte1_rgb(void *src)	144	static int byte1_rgb(void *src)
145	{	145	{
146	int color = (__u8 )src;	146	int color = (uint8_t )src;
147	return (((color >> 5) & 0x7) << (16 + 5)) \| (((color >> 3) & 0x3) << (8 + 6)) \| ((color & 0x7) << 5);	147	return (((color >> 5) & 0x7) << (16 + 5)) \| (((color >> 3) & 0x3) << (8 + 6)) \| ((color & 0x7) << 5);
148	}	148	}
149		149
150	static void putpixel(unsigned int x, unsigned int y, int color)	150	static void putpixel(unsigned int x, unsigned int y, int color)
151	{	151	{
Line 182...	Line 182...
182		182
183		183
184	/** Scroll screen one row up */	184	/** Scroll screen one row up */
185	static void scroll_screen(void)	185	static void scroll_screen(void)
186	{	186	{
187	__u8 lastline = &fbaddress[(rows - 1) ROW_BYTES];	187	uint8_t lastline = &fbaddress[(rows - 1) ROW_BYTES];
188	int firstsz;	188	int firstsz;
189		189
190	if (dbbuffer) {	190	if (dbbuffer) {
191	memcpy(&dbbuffer[dboffsetscanline], blankline, FONT_SCANLINESscanline);	191	memcpy(&dbbuffer[dboffsetscanline], blankline, FONT_SCANLINESscanline);
192		192
Line 223...	Line 223...
223		223
224	/***************************************************************/	224	/***************************************************************/
225	/* Character-console functions */	225	/* Character-console functions */
226		226
227	/** Draw character at given position */	227	/** Draw character at given position */
228	static void draw_glyph(__u8 glyph, unsigned int col, unsigned int row)	228	static void draw_glyph(uint8_t glyph, unsigned int col, unsigned int row)
229	{	229	{
230	unsigned int y;	230	unsigned int y;
231		231
232	for (y = 0; y < FONT_SCANLINES; y++)	232	for (y = 0; y < FONT_SCANLINES; y++)
233	draw_glyph_line(fb_font[glyph * FONT_SCANLINES + y], col * COL_WIDTH, row * FONT_SCANLINES + y);	233	draw_glyph_line(fb_font[glyph * FONT_SCANLINES + y], col * COL_WIDTH, row * FONT_SCANLINES + y);
Line 334...	Line 334...
334	* @param y Screen height in pixels	334	* @param y Screen height in pixels
335	* @param bpp Bits per pixel (8, 16, 24, 32)	335	* @param bpp Bits per pixel (8, 16, 24, 32)
336	* @param scan Bytes per one scanline	336	* @param scan Bytes per one scanline
337	*	337	*
338	*/	338	*/
339	void fb_init(__address addr, unsigned int x, unsigned int y, unsigned int bpp, unsigned int scan)	339	void fb_init(uintptr_t addr, unsigned int x, unsigned int y, unsigned int bpp, unsigned int scan)
340	{	340	{
341	switch (bpp) {	341	switch (bpp) {
342	case 8:	342	case 8:
343	rgb2scr = rgb_1byte;	343	rgb2scr = rgb_1byte;
344	scr2rgb = byte1_rgb;	344	scr2rgb = byte1_rgb;
Line 364...	Line 364...
364	}	364	}
365		365
366	unsigned int fbsize = scan * y;	366	unsigned int fbsize = scan * y;
367		367
368	/* Map the framebuffer */	368	/* Map the framebuffer */
369	fbaddress = (__u8 *) hw_map((__address) addr, fbsize);	369	fbaddress = (uint8_t *) hw_map((uintptr_t) addr, fbsize);
370		370
371	xres = x;	371	xres = x;
372	yres = y;	372	yres = y;
373	bitspp = bpp;	373	bitspp = bpp;
374	scanline = scan;	374	scanline = scan;
Line 397...	Line 397...
397	if (!dbbuffer)	397	if (!dbbuffer)
398	printf("Failed to allocate scroll buffer.\n");	398	printf("Failed to allocate scroll buffer.\n");
399	dboffset = 0;	399	dboffset = 0;
400		400
401	/* Initialized blank line */	401	/* Initialized blank line */
402	blankline = (__u8 *) malloc(ROW_BYTES, FRAME_ATOMIC);	402	blankline = (uint8_t *) malloc(ROW_BYTES, FRAME_ATOMIC);
403	if (!blankline)	403	if (!blankline)
404	panic("Failed to allocate blank line for framebuffer.");	404	panic("Failed to allocate blank line for framebuffer.");
405	for (y=0; y < FONT_SCANLINES; y++)	405	for (y=0; y < FONT_SCANLINES; y++)
406	for (x=0; x < xres; x++)	406	for (x=0; x < xres; x++)
407	(*rgb2scr)(&blankline[POINTPOS(x,y)],BGCOLOR);	407	(*rgb2scr)(&blankline[POINTPOS(x,y)],BGCOLOR);

Subversion Repositories HelenOS-historic

(root)/kernel/trunk/genarch/src/fb/fb.c @ 902 – Rev 1766 → 1780