WebSVN – HelenOS – Blame – /branches/tracing/uspace/srv/fb/fb.c

Rev	Author	Line No.	Line
1363	vana	1	/*
2071	jermar	2	* Copyright (c) 2006 Jakub Vana
		3	* Copyright (c) 2006 Ondrej Palkovsky
1363	vana	4	* All rights reserved.
		5	*
		6	* Redistribution and use in source and binary forms, with or without
		7	* modification, are permitted provided that the following conditions
		8	* are met:
		9	*
		10	* - Redistributions of source code must retain the above copyright
		11	* notice, this list of conditions and the following disclaimer.
		12	* - Redistributions in binary form must reproduce the above copyright
		13	* notice, this list of conditions and the following disclaimer in the
		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
		16	* derived from this software without specific prior written permission.
		17	*
		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
		20	* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
		21	* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
		22	* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
		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
		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
		27	* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
		28	*/
		29
1740	jermar	30	/**
		31	* @defgroup fb Graphical framebuffer
		32	* @brief HelenOS graphical framebuffer.
1649	cejka	33	* @ingroup fbs
		34	* @{
		35	*/
1888	jermar	36
1649	cejka	37	/** @file
		38	*/
		39
1430	jermar	40	#include <stdlib.h>
		41	#include <unistd.h>
		42	#include <string.h>
1363	vana	43	#include <ddi.h>
		44	#include <sysinfo.h>
		45	#include <align.h>
		46	#include <as.h>
		47	#include <ipc/fb.h>
		48	#include <ipc/ipc.h>
1430	jermar	49	#include <ipc/ns.h>
1363	vana	50	#include <ipc/services.h>
		51	#include <kernel/errno.h>
1993	decky	52	#include <kernel/genarch/fb/visuals.h>
1392	palkovsky	53	#include <async.h>
1993	decky	54	#include <bool.h>
1505	palkovsky	55
1404	palkovsky	56	#include "font-8x16.h"
1363	vana	57	#include "fb.h"
1505	palkovsky	58	#include "main.h"
		59	#include "../console/screenbuffer.h"
1547	palkovsky	60	#include "ppm.h"
1363	vana	61
1711	palkovsky	62	#include "pointer.xbm"
		63	#include "pointer_mask.xbm"
		64
1630	palkovsky	65	#define DEFAULT_BGCOLOR 0xf0f0f0
		66	#define DEFAULT_FGCOLOR 0x0
1363	vana	67
		68	/***************************************************************/
		69	/* Pixel specific fuctions */
		70
1555	palkovsky	71	typedef void (conv2scr_fn_t)(void , int);
		72	typedef int (conv2rgb_fn_t)(void );
1363	vana	73
1485	palkovsky	74	struct {
1875	jermar	75	uint8_t *fbaddress;
1363	vana	76
1875	jermar	77	unsigned int xres;
		78	unsigned int yres;
		79	unsigned int scanline;
		80	unsigned int pixelbytes;
		81	unsigned int invert_colors;
1363	vana	82
1555	palkovsky	83	conv2scr_fn_t rgb2scr;
		84	conv2rgb_fn_t scr2rgb;
1485	palkovsky	85	} screen;
1363	vana	86
1485	palkovsky	87	typedef struct {
		88	int initialized;
		89	unsigned int x, y;
		90	unsigned int width, height;
1363	vana	91
1485	palkovsky	92	/* Text support in window */
		93	unsigned int rows, cols;
		94	/* Style for text printing */
1509	palkovsky	95	style_t style;
1485	palkovsky	96	/* Auto-cursor position */
1486	palkovsky	97	int cursor_active, cur_col, cur_row;
1500	palkovsky	98	int cursor_shown;
1672	palkovsky	99	/* Double buffering */
1781	jermar	100	uint8_t *dbdata;
1672	palkovsky	101	unsigned int dboffset;
		102	unsigned int paused;
1485	palkovsky	103	} viewport_t;
1363	vana	104
1646	palkovsky	105	#define MAX_ANIM_LEN 8
		106	#define MAX_ANIMATIONS 4
		107	typedef struct {
		108	int initialized;
		109	int enabled;
		110	unsigned int vp;
		111
		112	unsigned int pos;
		113	unsigned int animlen;
		114	unsigned int pixmaps[MAX_ANIM_LEN];
		115	} animation_t;
		116	static animation_t animations[MAX_ANIMATIONS];
		117	static int anims_enabled;
		118
1552	palkovsky	119	/** Maximum number of saved pixmaps
		120	* Pixmap is a saved rectangle
		121	*/
		122	#define MAX_PIXMAPS 256
		123	typedef struct {
		124	unsigned int width;
		125	unsigned int height;
1781	jermar	126	uint8_t *data;
1552	palkovsky	127	} pixmap_t;
		128	static pixmap_t pixmaps[MAX_PIXMAPS];
		129
		130	/* Viewport is a rectangular area on the screen */
1485	palkovsky	131	#define MAX_VIEWPORTS 128
		132	static viewport_t viewports[128];
		133
		134	/* Allow only 1 connection */
		135	static int client_connected = 0;
		136
1363	vana	137	#define RED(x, bits) ((x >> (16 + 8 - bits)) & ((1 << bits) - 1))
		138	#define GREEN(x, bits) ((x >> (8 + 8 - bits)) & ((1 << bits) - 1))
		139	#define BLUE(x, bits) ((x >> (8 - bits)) & ((1 << bits) - 1))
		140
1485	palkovsky	141	#define COL_WIDTH 8
		142	#define ROW_BYTES (screen.scanline * FONT_SCANLINES)
1363	vana	143
1485	palkovsky	144	#define POINTPOS(x, y) ((y) * screen.scanline + (x) * screen.pixelbytes)
1363	vana	145
1875	jermar	146	static inline int COLOR(int color)
		147	{
		148	return screen.invert_colors ? ~color : color;
		149	}
		150
1555	palkovsky	151	/* Conversion routines between different color representations */
2070	jermar	152	static void
		153	rgb_byte0888(void *dst, int rgb)
1363	vana	154	{
1555	palkovsky	155	(int )dst = rgb;
1363	vana	156	}
		157
2070	jermar	158	static int
		159	byte0888_rgb(void *src)
1363	vana	160	{
1555	palkovsky	161	return ((int )src) & 0xffffff;
1363	vana	162	}
		163
2070	jermar	164	static void
		165	bgr_byte0888(void *dst, int rgb)
1994	decky	166	{
2025	jermar	167	((uint32_t ) dst) = BLUE(rgb, 8) << 16 \| GREEN(rgb, 8) << 8 \|
2619	jermar	168	RED(rgb, 8);
1994	decky	169	}
		170
2070	jermar	171	static int
		172	byte0888_bgr(void *src)
1994	decky	173	{
		174	int color = (uint32_t )(src);
2070	jermar	175	return ((color & 0xff) << 16) \| (((color >> 8) & 0xff) << 8) \|
2619	jermar	176	((color >> 16) & 0xff);
1994	decky	177	}
		178
2070	jermar	179	static void
		180	rgb_byte888(void *dst, int rgb)
1363	vana	181	{
1781	jermar	182	uint8_t *scr = dst;
1871	jermar	183	#if defined(FB_INVERT_ENDIAN)
1555	palkovsky	184	scr[0] = RED(rgb, 8);
		185	scr[1] = GREEN(rgb, 8);
		186	scr[2] = BLUE(rgb, 8);
1363	vana	187	#else
1555	palkovsky	188	scr[2] = RED(rgb, 8);
		189	scr[1] = GREEN(rgb, 8);
		190	scr[0] = BLUE(rgb, 8);
1363	vana	191	#endif
		192	}
		193
2070	jermar	194	static int
		195	byte888_rgb(void *src)
1363	vana	196	{
1781	jermar	197	uint8_t *scr = src;
1871	jermar	198	#if defined(FB_INVERT_ENDIAN)
1555	palkovsky	199	return scr[0] << 16 \| scr[1] << 8 \| scr[2];
1363	vana	200	#else
1555	palkovsky	201	return scr[2] << 16 \| scr[1] << 8 \| scr[0];
		202	#endif
1363	vana	203	}
		204
1993	decky	205	/** 16-bit depth (5:5:5) */
2070	jermar	206	static void
		207	rgb_byte555(void *dst, int rgb)
1993	decky	208	{
		209	/* 5-bit, 5-bits, 5-bits */
2025	jermar	210	((uint16_t )(dst)) = RED(rgb, 5) << 10 \| GREEN(rgb, 5) << 5 \|
2619	jermar	211	BLUE(rgb, 5);
1993	decky	212	}
		213
		214	/** 16-bit depth (5:5:5) */
2070	jermar	215	static int
		216	byte555_rgb(void *src)
1993	decky	217	{
		218	int color = (uint16_t )(src);
2070	jermar	219	return (((color >> 10) & 0x1f) << (16 + 3)) \|
2619	jermar	220	(((color >> 5) & 0x1f) << (8 + 3)) \| ((color & 0x1f) << 3);
1993	decky	221	}
		222
1555	palkovsky	223	/** 16-bit depth (5:6:5) */
2070	jermar	224	static void
		225	rgb_byte565(void *dst, int rgb)
1363	vana	226	{
		227	/* 5-bit, 6-bits, 5-bits */
2025	jermar	228	((uint16_t )(dst)) = RED(rgb, 5) << 11 \| GREEN(rgb, 6) << 5 \|
2619	jermar	229	BLUE(rgb, 5);
1363	vana	230	}
		231
1555	palkovsky	232	/** 16-bit depth (5:6:5) */
2070	jermar	233	static int
		234	byte565_rgb(void *src)
1363	vana	235	{
1781	jermar	236	int color = (uint16_t )(src);
2070	jermar	237	return (((color >> 11) & 0x1f) << (16 + 3)) \|
2619	jermar	238	(((color >> 5) & 0x3f) << (8 + 2)) \| ((color & 0x1f) << 3);
1363	vana	239	}
		240
		241	/** Put pixel - 8-bit depth (3:2:3) */
2070	jermar	242	static void
		243	rgb_byte8(void *dst, int rgb)
1363	vana	244	{
1781	jermar	245	(uint8_t )dst = RED(rgb, 3) << 5 \| GREEN(rgb, 2) << 3 \| BLUE(rgb, 3);
1363	vana	246	}
		247
		248	/** Return pixel color - 8-bit depth (3:2:3) */
2070	jermar	249	static int
		250	byte8_rgb(void *src)
1363	vana	251	{
1781	jermar	252	int color = (uint8_t )src;
2070	jermar	253	return (((color >> 5) & 0x7) << (16 + 5)) \|
2619	jermar	254	(((color >> 3) & 0x3) << (8 + 6)) \| ((color & 0x7) << 5);
1363	vana	255	}
		256
1498	palkovsky	257	/** Put pixel into viewport
		258	*
1709	jermar	259	* @param vport Viewport identification
1498	palkovsky	260	* @param x X coord relative to viewport
		261	* @param y Y coord relative to viewport
		262	* @param color RGB color
		263	*/
2070	jermar	264	static void
		265	putpixel(viewport_t *vport, unsigned int x, unsigned int y, int color)
1485	palkovsky	266	{
1673	palkovsky	267	int dx = vport->x + x;
		268	int dy = vport->y + y;
1672	palkovsky	269
1673	palkovsky	270	if (! (vport->paused && vport->dbdata))
2070	jermar	271	(*screen.rgb2scr)(&screen.fbaddress[POINTPOS(dx,dy)],
2619	jermar	272	COLOR(color));
1672	palkovsky	273
1673	palkovsky	274	if (vport->dbdata) {
		275	int dline = (y + vport->dboffset) % vport->height;
		276	int doffset = screen.pixelbytes * (dline * vport->width + x);
1875	jermar	277	(*screen.rgb2scr)(&vport->dbdata[doffset], COLOR(color));
1672	palkovsky	278	}
1485	palkovsky	279	}
1672	palkovsky	280
1498	palkovsky	281	/** Get pixel from viewport */
2070	jermar	282	static int
		283	getpixel(viewport_t *vport, unsigned int x, unsigned int y)
1485	palkovsky	284	{
1673	palkovsky	285	int dx = vport->x + x;
		286	int dy = vport->y + y;
1555	palkovsky	287
2070	jermar	288	return COLOR((*screen.scr2rgb)(&screen.fbaddress[POINTPOS(dx, dy)]));
1485	palkovsky	289	}
		290
2070	jermar	291	static inline void
		292	putpixel_mem(char *mem, unsigned int x, unsigned int y, int color)
1363	vana	293	{
2619	jermar	294	(*screen.rgb2scr)(&mem[POINTPOS(x, y)], COLOR(color));
1363	vana	295	}
		296
2070	jermar	297	static void
		298	draw_rectangle(viewport_t *vport, unsigned int sx, unsigned int sy,
2025	jermar	299	unsigned int width, unsigned int height, int color)
1559	palkovsky	300	{
		301	unsigned int x, y;
1668	palkovsky	302	static void *tmpline;
1559	palkovsky	303
1668	palkovsky	304	if (!tmpline)
2619	jermar	305	tmpline = malloc(screen.scanline * screen.pixelbytes);
1668	palkovsky	306
1559	palkovsky	307	/* Clear first line */
		308	for (x = 0; x < width; x++)
1668	palkovsky	309	putpixel_mem(tmpline, x, 0, color);
1559	palkovsky	310
1673	palkovsky	311	if (!vport->paused) {
1672	palkovsky	312	/* Recompute to screen coords */
1673	palkovsky	313	sx += vport->x;
		314	sy += vport->y;
1672	palkovsky	315	/* Copy the rest */
		316	for (y = sy;y < sy+height; y++)
		317	memcpy(&screen.fbaddress[POINTPOS(sx,y)], tmpline,
2619	jermar	318	screen.pixelbytes * width);
1672	palkovsky	319	}
1673	palkovsky	320	if (vport->dbdata) {
2025	jermar	321	for (y = sy; y < sy + height; y++) {
1673	palkovsky	322	int rline = (y + vport->dboffset) % vport->height;
2025	jermar	323	int rpos = (rline * vport->width + sx) *
2619	jermar	324	screen.pixelbytes;
2025	jermar	325	memcpy(&vport->dbdata[rpos], tmpline,
2619	jermar	326	screen.pixelbytes * width);
1672	palkovsky	327	}
		328	}
1559	palkovsky	329
		330	}
		331
1485	palkovsky	332	/** Fill viewport with background color */
2070	jermar	333	static void
		334	clear_port(viewport_t *vport)
1363	vana	335	{
2025	jermar	336	draw_rectangle(vport, 0, 0, vport->width, vport->height,
2619	jermar	337	vport->style.bg_color);
1363	vana	338	}
		339
1672	palkovsky	340	/** Scroll unbuffered viewport up/down
1485	palkovsky	341	*
1709	jermar	342	* @param vport Viewport to scroll
		343	* @param lines Positive number - scroll up, negative - scroll down
1485	palkovsky	344	*/
2070	jermar	345	static void
		346	scroll_port_nodb(viewport_t *vport, int lines)
1363	vana	347	{
1485	palkovsky	348	int y;
1672	palkovsky	349
		350	if (lines > 0) {
2025	jermar	351	for (y = vport->y; y < vport->y+vport->height - lines; y++)
1559	palkovsky	352	memcpy(&screen.fbaddress[POINTPOS(vport->x,y)],
2619	jermar	353	&screen.fbaddress[POINTPOS(vport->x,y + lines)],
		354	screen.pixelbytes * vport->width);
2025	jermar	355	draw_rectangle(vport, 0, vport->height - lines, vport->width,
2619	jermar	356	lines, vport->style.bg_color);
1672	palkovsky	357	} else if (lines < 0) {
		358	lines = -lines;
2619	jermar	359	for (y = vport->y + vport->height-1; y >= vport->y + lines; y--)
1559	palkovsky	360	memcpy(&screen.fbaddress[POINTPOS(vport->x,y)],
2619	jermar	361	&screen.fbaddress[POINTPOS(vport->x,y - lines)],
		362	screen.pixelbytes * vport->width);
2025	jermar	363	draw_rectangle(vport, 0, 0, vport->width, lines,
2619	jermar	364	vport->style.bg_color);
1485	palkovsky	365	}
1363	vana	366	}
		367
1672	palkovsky	368	/** Refresh given viewport from double buffer */
2070	jermar	369	static void
		370	refresh_viewport_db(viewport_t *vport)
1672	palkovsky	371	{
		372	unsigned int y, srcy, srcoff, dsty, dstx;
		373
1673	palkovsky	374	for (y = 0; y < vport->height; y++) {
		375	srcy = (y + vport->dboffset) % vport->height;
		376	srcoff = (vport->width * srcy) * screen.pixelbytes;
1672	palkovsky	377
1673	palkovsky	378	dstx = vport->x;
		379	dsty = vport->y + y;
1672	palkovsky	380
		381	memcpy(&screen.fbaddress[POINTPOS(dstx,dsty)],
2619	jermar	382	&vport->dbdata[srcoff], vport->width * screen.pixelbytes);
1672	palkovsky	383	}
		384	}
		385
		386	/** Scroll viewport that has double buffering enabled */
2070	jermar	387	static void
		388	scroll_port_db(viewport_t *vport, int lines)
1672	palkovsky	389	{
1673	palkovsky	390	++vport->paused;
1672	palkovsky	391	if (lines > 0) {
1673	palkovsky	392	draw_rectangle(vport, 0, 0, vport->width, lines,
2619	jermar	393	vport->style.bg_color);
1673	palkovsky	394	vport->dboffset += lines;
		395	vport->dboffset %= vport->height;
1672	palkovsky	396	} else if (lines < 0) {
		397	lines = -lines;
2619	jermar	398	draw_rectangle(vport, 0, vport->height-lines, vport->width,
		399	lines, vport->style.bg_color);
1672	palkovsky	400
1673	palkovsky	401	if (vport->dboffset < lines)
		402	vport->dboffset += vport->height;
		403	vport->dboffset -= lines;
1672	palkovsky	404	}
		405
1673	palkovsky	406	--vport->paused;
1672	palkovsky	407
1673	palkovsky	408	refresh_viewport_db(vport);
1672	palkovsky	409	}
		410
		411	/** Scrolls viewport given number of lines */
2070	jermar	412	static void
		413	scroll_port(viewport_t *vport, int lines)
1672	palkovsky	414	{
1673	palkovsky	415	if (vport->dbdata)
		416	scroll_port_db(vport, lines);
1672	palkovsky	417	else
1673	palkovsky	418	scroll_port_nodb(vport, lines);
1672	palkovsky	419
		420	}
		421
2070	jermar	422	static void
		423	invert_pixel(viewport_t *vport, unsigned int x, unsigned int y)
1363	vana	424	{
1673	palkovsky	425	putpixel(vport, x, y, ~getpixel(vport, x, y));
1363	vana	426	}
		427
		428
		429	/***************************************************************/
		430	/* Character-console functions */
		431
1558	palkovsky	432	/** Draw character at given position
		433	*
1709	jermar	434	* @param vport Viewport where the character is printed
1558	palkovsky	435	* @param sx Coordinates of top-left of the character
		436	* @param sy Coordinates of top-left of the character
		437	* @param style Color of the character
		438	* @param transparent If false, print background color
		439	*/
2070	jermar	440	static void
2619	jermar	441	draw_glyph(viewport_t *vport,uint8_t glyph, unsigned int sx, unsigned int sy,
		442	style_t style, int transparent)
1363	vana	443	{
1509	palkovsky	444	int i;
1363	vana	445	unsigned int y;
1509	palkovsky	446	unsigned int glline;
1363	vana	447
1509	palkovsky	448	for (y = 0; y < FONT_SCANLINES; y++) {
		449	glline = fb_font[glyph * FONT_SCANLINES + y];
		450	for (i = 0; i < 8; i++) {
		451	if (glline & (1 << (7 - i)))
2619	jermar	452	putpixel(vport, sx + i, sy + y, style.fg_color);
1558	palkovsky	453	else if (!transparent)
2619	jermar	454	putpixel(vport, sx + i, sy + y, style.bg_color);
1509	palkovsky	455	}
		456	}
1363	vana	457	}
		458
		459	/** Invert character at given position */
2070	jermar	460	static void
		461	invert_char(viewport_t *vport,unsigned int row, unsigned int col)
1363	vana	462	{
		463	unsigned int x;
		464	unsigned int y;
		465
		466	for (x = 0; x < COL_WIDTH; x++)
		467	for (y = 0; y < FONT_SCANLINES; y++)
2025	jermar	468	invert_pixel(vport, col * COL_WIDTH + x, row *
2619	jermar	469	FONT_SCANLINES + y);
1363	vana	470	}
		471
		472	/***************************************************************/
		473	/* Stdout specific functions */
		474
		475
1485	palkovsky	476	/** Create new viewport
1363	vana	477	*
1485	palkovsky	478	* @return New viewport number
1363	vana	479	*/
2070	jermar	480	static int
		481	viewport_create(unsigned int x, unsigned int y,unsigned int width,
2025	jermar	482	unsigned int height)
1363	vana	483	{
1485	palkovsky	484	int i;
		485
2070	jermar	486	for (i = 0; i < MAX_VIEWPORTS; i++) {
1485	palkovsky	487	if (!viewports[i].initialized)
1363	vana	488	break;
		489	}
1485	palkovsky	490	if (i == MAX_VIEWPORTS)
		491	return ELIMIT;
		492
		493	viewports[i].x = x;
		494	viewports[i].y = y;
		495	viewports[i].width = width;
		496	viewports[i].height = height;
1363	vana	497
1485	palkovsky	498	viewports[i].rows = height / FONT_SCANLINES;
		499	viewports[i].cols = width / COL_WIDTH;
		500
1509	palkovsky	501	viewports[i].style.bg_color = DEFAULT_BGCOLOR;
		502	viewports[i].style.fg_color = DEFAULT_FGCOLOR;
1363	vana	503
1489	palkovsky	504	viewports[i].cur_col = 0;
		505	viewports[i].cur_row = 0;
		506	viewports[i].cursor_active = 0;
		507
1486	palkovsky	508	viewports[i].initialized = 1;
		509
1485	palkovsky	510	return i;
1363	vana	511	}
		512
		513	/** Initialize framebuffer as a chardev output device
		514	*
1993	decky	515	* @param addr Address of theframebuffer
		516	* @param xres Screen width in pixels
		517	* @param yres Screen height in pixels
		518	* @param visual Bits per pixel (8, 16, 24, 32)
		519	* @param scan Bytes per one scanline
1875	jermar	520	* @param invert_colors Inverted colors.
1363	vana	521	*
		522	*/
2070	jermar	523	static bool
		524	screen_init(void *addr, unsigned int xres, unsigned int yres,
2025	jermar	525	unsigned int scan, unsigned int visual, bool invert_colors)
1363	vana	526	{
1993	decky	527	switch (visual) {
		528	case VISUAL_INDIRECT_8:
		529	screen.rgb2scr = rgb_byte8;
		530	screen.scr2rgb = byte8_rgb;
1886	jermar	531	screen.pixelbytes = 1;
		532	break;
1993	decky	533	case VISUAL_RGB_5_5_5:
		534	screen.rgb2scr = rgb_byte555;
		535	screen.scr2rgb = byte555_rgb;
1886	jermar	536	screen.pixelbytes = 2;
		537	break;
1993	decky	538	case VISUAL_RGB_5_6_5:
		539	screen.rgb2scr = rgb_byte565;
		540	screen.scr2rgb = byte565_rgb;
		541	screen.pixelbytes = 2;
1886	jermar	542	break;
1993	decky	543	case VISUAL_RGB_8_8_8:
		544	screen.rgb2scr = rgb_byte888;
		545	screen.scr2rgb = byte888_rgb;
		546	screen.pixelbytes = 3;
		547	break;
		548	case VISUAL_RGB_8_8_8_0:
		549	screen.rgb2scr = rgb_byte888;
		550	screen.scr2rgb = byte888_rgb;
1886	jermar	551	screen.pixelbytes = 4;
		552	break;
1993	decky	553	case VISUAL_RGB_0_8_8_8:
		554	screen.rgb2scr = rgb_byte0888;
		555	screen.scr2rgb = byte0888_rgb;
		556	screen.pixelbytes = 4;
		557	break;
1994	decky	558	case VISUAL_BGR_0_8_8_8:
		559	screen.rgb2scr = bgr_byte0888;
		560	screen.scr2rgb = byte0888_bgr;
		561	screen.pixelbytes = 4;
		562	break;
1993	decky	563	default:
		564	return false;
1363	vana	565	}
		566
1485	palkovsky	567	screen.fbaddress = (unsigned char *) addr;
		568	screen.xres = xres;
		569	screen.yres = yres;
		570	screen.scanline = scan;
1875	jermar	571	screen.invert_colors = invert_colors;
1363	vana	572
1485	palkovsky	573	/* Create first viewport */
1993	decky	574	viewport_create(0, 0, xres, yres);
		575
		576	return true;
1485	palkovsky	577	}
1363	vana	578
1552	palkovsky	579	/** Hide cursor if it is shown */
2070	jermar	580	static void
		581	cursor_hide(viewport_t *vport)
1500	palkovsky	582	{
		583	if (vport->cursor_active && vport->cursor_shown) {
1673	palkovsky	584	invert_char(vport, vport->cur_row, vport->cur_col);
1500	palkovsky	585	vport->cursor_shown = 0;
		586	}
		587	}
		588
1552	palkovsky	589	/** Show cursor if cursor showing is enabled */
2070	jermar	590	static void
		591	cursor_print(viewport_t *vport)
1500	palkovsky	592	{
		593	/* Do not check for cursor_shown */
		594	if (vport->cursor_active) {
1673	palkovsky	595	invert_char(vport, vport->cur_row, vport->cur_col);
1500	palkovsky	596	vport->cursor_shown = 1;
		597	}
		598	}
		599
1552	palkovsky	600	/** Invert cursor, if it is enabled */
2070	jermar	601	static void
		602	cursor_blink(viewport_t *vport)
1500	palkovsky	603	{
		604	if (vport->cursor_shown)
1673	palkovsky	605	cursor_hide(vport);
1500	palkovsky	606	else
1673	palkovsky	607	cursor_print(vport);
1500	palkovsky	608	}
		609
1498	palkovsky	610	/** Draw character at given position relative to viewport
		611	*
1709	jermar	612	* @param vport Viewport identification
1498	palkovsky	613	* @param c Character to print
		614	* @param row Screen position relative to viewport
		615	* @param col Screen position relative to viewport
1558	palkovsky	616	* @param transparent If false, print background color with character
1498	palkovsky	617	*/
2070	jermar	618	static void
		619	draw_char(viewport_t *vport, char c, unsigned int row, unsigned int col,
		620	style_t style, int transparent)
1486	palkovsky	621	{
1500	palkovsky	622	/* Optimize - do not hide cursor if we are going to overwrite it */
		623	if (vport->cursor_active && vport->cursor_shown &&
		624	(vport->cur_col != col \|\| vport->cur_row != row))
1673	palkovsky	625	invert_char(vport, vport->cur_row, vport->cur_col);
1486	palkovsky	626
2025	jermar	627	draw_glyph(vport, c, col * COL_WIDTH, row * FONT_SCANLINES, style,
2619	jermar	628	transparent);
1489	palkovsky	629
		630	vport->cur_col = col;
		631	vport->cur_row = row;
		632
		633	vport->cur_col++;
2025	jermar	634	if (vport->cur_col >= vport->cols) {
1489	palkovsky	635	vport->cur_col = 0;
		636	vport->cur_row++;
		637	if (vport->cur_row >= vport->rows)
		638	vport->cur_row--;
1486	palkovsky	639	}
1673	palkovsky	640	cursor_print(vport);
1486	palkovsky	641	}
		642
1552	palkovsky	643	/** Draw text data to viewport
		644	*
1709	jermar	645	* @param vport Viewport id
1552	palkovsky	646	* @param data Text data fitting exactly into viewport
		647	*/
2070	jermar	648	static void
		649	draw_text_data(viewport_t vport, keyfield_t data)
1505	palkovsky	650	{
		651	int i;
1515	palkovsky	652	int col,row;
1505	palkovsky	653
1673	palkovsky	654	clear_port(vport);
2025	jermar	655	for (i = 0; i < vport->cols * vport->rows; i++) {
		656	if (data[i].character == ' ' && style_same(data[i].style,
2619	jermar	657	vport->style))
1505	palkovsky	658	continue;
1515	palkovsky	659	col = i % vport->cols;
		660	row = i / vport->cols;
2025	jermar	661	draw_glyph(vport, data[i].character, col * COL_WIDTH, row *
2619	jermar	662	FONT_SCANLINES, data[i].style, style_same(data[i].style,
		663	vport->style));
1505	palkovsky	664	}
1673	palkovsky	665	cursor_print(vport);
1505	palkovsky	666	}
		667
1555	palkovsky	668	/** Return first free pixmap */
2070	jermar	669	static int
		670	find_free_pixmap(void)
1555	palkovsky	671	{
		672	int i;
		673
2070	jermar	674	for (i = 0;i < MAX_PIXMAPS;i++)
1555	palkovsky	675	if (!pixmaps[i].data)
		676	return i;
		677	return -1;
		678	}
		679
2070	jermar	680	static void
		681	putpixel_pixmap(int pm, unsigned int x, unsigned int y, int color)
1555	palkovsky	682	{
		683	pixmap_t *pmap = &pixmaps[pm];
		684	int pos = (y * pmap->width + x) * screen.pixelbytes;
		685
1875	jermar	686	(*screen.rgb2scr)(&pmap->data[pos],COLOR(color));
1555	palkovsky	687	}
		688
		689	/** Create a new pixmap and return appropriate ID */
2070	jermar	690	static int
		691	shm2pixmap(unsigned char *shm, size_t size)
1555	palkovsky	692	{
		693	int pm;
		694	pixmap_t *pmap;
		695
		696	pm = find_free_pixmap();
		697	if (pm == -1)
		698	return ELIMIT;
		699	pmap = &pixmaps[pm];
		700
		701	if (ppm_get_data(shm, size, &pmap->width, &pmap->height))
		702	return EINVAL;
		703
		704	pmap->data = malloc(pmap->width * pmap->height * screen.pixelbytes);
		705	if (!pmap->data)
		706	return ENOMEM;
		707
		708	ppm_draw(shm, size, 0, 0, pmap->width, pmap->height,
2619	jermar	709	(putpixel_cb_t)putpixel_pixmap, (void *)pm);
1555	palkovsky	710
		711	return pm;
		712	}
		713
1552	palkovsky	714	/** Handle shared memory communication calls
		715	*
		716	* Protocol for drawing pixmaps:
		717	* - FB_PREPARE_SHM(client shm identification)
2025	jermar	718	* - IPC_M_AS_AREA_SEND
1552	palkovsky	719	* - FB_DRAW_PPM(startx,starty)
		720	* - FB_DROP_SHM
		721	*
		722	* Protocol for text drawing
2025	jermar	723	* - IPC_M_AS_AREA_SEND
1552	palkovsky	724	* - FB_DRAW_TEXT_DATA
		725	*
		726	* @param callid Callid of the current call
		727	* @param call Current call data
		728	* @param vp Active viewport
		729	* @return 0 if the call was not handled byt this function, 1 otherwise
		730	*
		731	* note: this function is not threads safe, you would have
		732	* to redefine static variables with __thread
		733	*/
2070	jermar	734	static int
		735	shm_handle(ipc_callid_t callid, ipc_call_t *call, int vp)
1547	palkovsky	736	{
		737	static keyfield_t *interbuffer = NULL;
		738	static size_t intersize = 0;
1505	palkovsky	739
1720	palkovsky	740	static unsigned char *shm = NULL;
1555	palkovsky	741	static ipcarg_t shm_id = 0;
		742	static size_t shm_size;
1547	palkovsky	743
		744	int handled = 1;
		745	int retval = 0;
		746	viewport_t *vport = &viewports[vp];
2070	jermar	747	unsigned int x, y;
1547	palkovsky	748
		749	switch (IPC_GET_METHOD(*call)) {
2677	jermar	750	case IPC_M_SHARE_OUT:
1547	palkovsky	751	/* We accept one area for data interchange */
1555	palkovsky	752	if (IPC_GET_ARG1(*call) == shm_id) {
2141	jermar	753	void dest = as_get_mappable_page(IPC_GET_ARG2(call));
1555	palkovsky	754	shm_size = IPC_GET_ARG2(*call);
2619	jermar	755	if (!ipc_answer_1(callid, EOK, (sysarg_t) dest))
1555	palkovsky	756	shm = dest;
1547	palkovsky	757	else
1555	palkovsky	758	shm_id = 0;
		759	if (shm[0] != 'P')
1547	palkovsky	760	while (1)
		761	;
		762	return 1;
		763	} else {
		764	intersize = IPC_GET_ARG2(*call);
2015	jermar	765	receive_comm_area(callid, call, (void *) &interbuffer);
1547	palkovsky	766	}
		767	return 1;
		768	case FB_PREPARE_SHM:
1555	palkovsky	769	if (shm_id)
1547	palkovsky	770	retval = EBUSY;
		771	else
1555	palkovsky	772	shm_id = IPC_GET_ARG1(*call);
1547	palkovsky	773	break;
		774
		775	case FB_DROP_SHM:
1555	palkovsky	776	if (shm) {
		777	as_area_destroy(shm);
		778	shm = NULL;
1547	palkovsky	779	}
1555	palkovsky	780	shm_id = 0;
1547	palkovsky	781	break;
1555	palkovsky	782
		783	case FB_SHM2PIXMAP:
		784	if (!shm) {
		785	retval = EINVAL;
		786	break;
		787	}
		788	retval = shm2pixmap(shm, shm_size);
		789	break;
1547	palkovsky	790	case FB_DRAW_PPM:
1555	palkovsky	791	if (!shm) {
1547	palkovsky	792	retval = EINVAL;
		793	break;
		794	}
		795	x = IPC_GET_ARG1(*call);
		796	y = IPC_GET_ARG2(*call);
		797	if (x > vport->width \|\| y > vport->height) {
		798	retval = EINVAL;
		799	break;
		800	}
		801
2025	jermar	802	ppm_draw(shm, shm_size, IPC_GET_ARG1(*call),
2619	jermar	803	IPC_GET_ARG2(*call), vport->width - x, vport->height - y,
		804	(putpixel_cb_t)putpixel, vport);
1547	palkovsky	805	break;
		806	case FB_DRAW_TEXT_DATA:
		807	if (!interbuffer) {
		808	retval = EINVAL;
		809	break;
		810	}
2025	jermar	811	if (intersize < vport->cols * vport->rows *
2619	jermar	812	sizeof(*interbuffer)) {
1547	palkovsky	813	retval = EINVAL;
		814	break;
		815	}
1673	palkovsky	816	draw_text_data(vport, interbuffer);
1547	palkovsky	817	break;
		818	default:
		819	handled = 0;
		820	}
		821
		822	if (handled)
2619	jermar	823	ipc_answer_0(callid, retval);
1547	palkovsky	824	return handled;
		825	}
		826
2070	jermar	827	static void
		828	copy_vp_to_pixmap(viewport_t vport, pixmap_t pmap)
1552	palkovsky	829	{
1720	palkovsky	830	int y;
2301	decky	831	int tmp, srcrowsize;
		832	int realwidth, realheight, realrowsize;
1711	palkovsky	833	int width = vport->width;
		834	int height = vport->height;
1552	palkovsky	835
1711	palkovsky	836	if (width + vport->x > screen.xres)
		837	width = screen.xres - vport->x;
2301	decky	838	if (height + vport->y > screen.yres)
1711	palkovsky	839	height = screen.yres - vport->y;
2301	decky	840
		841	realwidth = pmap->width <= width ? pmap->width : width;
		842	realheight = pmap->height <= height ? pmap->height : height;
1711	palkovsky	843
2301	decky	844	srcrowsize = vport->width * screen.pixelbytes;
		845	realrowsize = realwidth * screen.pixelbytes;
		846
		847	for (y = 0; y < realheight; y++) {
2070	jermar	848	tmp = (vport->y + y) * screen.scanline +
2619	jermar	849	vport->x * screen.pixelbytes;
2301	decky	850	memcpy(pmap->data + srcrowsize * y, screen.fbaddress + tmp,
2619	jermar	851	realrowsize);
1711	palkovsky	852	}
		853	}
		854
		855	/** Save viewport to pixmap */
2070	jermar	856	static int
		857	save_vp_to_pixmap(viewport_t *vport)
1711	palkovsky	858	{
		859	int pm;
		860	pixmap_t *pmap;
		861
1552	palkovsky	862	pm = find_free_pixmap();
		863	if (pm == -1)
		864	return ELIMIT;
		865
		866	pmap = &pixmaps[pm];
		867	pmap->data = malloc(screen.pixelbytes * vport->width * vport->height);
		868	if (!pmap->data)
		869	return ENOMEM;
		870
		871	pmap->width = vport->width;
		872	pmap->height = vport->height;
1711	palkovsky	873
		874	copy_vp_to_pixmap(vport, pmap);
1552	palkovsky	875
		876	return pm;
		877	}
		878
		879	/** Draw pixmap on screen
		880	*
		881	* @param vp Viewport to draw on
		882	* @param pm Pixmap identifier
		883	*/
		884	static int draw_pixmap(int vp, int pm)
		885	{
		886	pixmap_t *pmap = &pixmaps[pm];
		887	viewport_t *vport = &viewports[vp];
1720	palkovsky	888	int y;
1552	palkovsky	889	int tmp, srcrowsize;
		890	int realwidth, realheight, realrowsize;
1711	palkovsky	891	int width = vport->width;
		892	int height = vport->height;
1552	palkovsky	893
1711	palkovsky	894	if (width + vport->x > screen.xres)
		895	width = screen.xres - vport->x;
		896	if (height + vport->y > screen.yres)
		897	height = screen.yres - vport->y;
		898
1552	palkovsky	899	if (!pmap->data)
		900	return EINVAL;
		901
1711	palkovsky	902	realwidth = pmap->width <= width ? pmap->width : width;
		903	realheight = pmap->height <= height ? pmap->height : height;
1552	palkovsky	904
		905	srcrowsize = vport->width * screen.pixelbytes;
		906	realrowsize = realwidth * screen.pixelbytes;
		907
2070	jermar	908	for (y = 0; y < realheight; y++) {
		909	tmp = (vport->y + y) * screen.scanline +
2619	jermar	910	vport->x * screen.pixelbytes;
2025	jermar	911	memcpy(screen.fbaddress + tmp, pmap->data + y * srcrowsize,
2619	jermar	912	realrowsize);
1552	palkovsky	913	}
1567	palkovsky	914	return 0;
1552	palkovsky	915	}
		916
1646	palkovsky	917	/** Tick animation one step forward */
2070	jermar	918	static void
		919	anims_tick(void)
1646	palkovsky	920	{
		921	int i;
		922	static int counts = 0;
		923
		924	/* Limit redrawing */
2025	jermar	925	counts = (counts + 1) % 8;
1646	palkovsky	926	if (counts)
		927	return;
		928
2070	jermar	929	for (i = 0; i < MAX_ANIMATIONS; i++) {
2025	jermar	930	if (!animations[i].animlen \|\| !animations[i].initialized \|\|
2619	jermar	931	!animations[i].enabled)
1646	palkovsky	932	continue;
2025	jermar	933	draw_pixmap(animations[i].vp,
2619	jermar	934	animations[i].pixmaps[animations[i].pos]);
2025	jermar	935	animations[i].pos = (animations[i].pos + 1) %
2619	jermar	936	animations[i].animlen;
1646	palkovsky	937	}
		938	}
		939
1711	palkovsky	940
		941	static int pointer_x, pointer_y;
1723	palkovsky	942	static int pointer_shown, pointer_enabled;
1711	palkovsky	943	static int pointer_vport = -1;
		944	static int pointer_pixmap = -1;
		945
2070	jermar	946	static void
		947	mouse_show(void)
1711	palkovsky	948	{
2070	jermar	949	int i, j;
1711	palkovsky	950	int visibility;
		951	int color;
		952	int bytepos;
		953
1723	palkovsky	954	if (pointer_shown \|\| !pointer_enabled)
		955	return;
		956
1711	palkovsky	957	/* Save image under the cursor */
		958	if (pointer_vport == -1) {
2025	jermar	959	pointer_vport = viewport_create(pointer_x, pointer_y,
2619	jermar	960	pointer_width, pointer_height);
1711	palkovsky	961	if (pointer_vport < 0)
		962	return;
		963	} else {
		964	viewports[pointer_vport].x = pointer_x;
		965	viewports[pointer_vport].y = pointer_y;
		966	}
		967
		968	if (pointer_pixmap == -1)
		969	pointer_pixmap = save_vp_to_pixmap(&viewports[pointer_vport]);
		970	else
2025	jermar	971	copy_vp_to_pixmap(&viewports[pointer_vport],
2619	jermar	972	&pixmaps[pointer_pixmap]);
1711	palkovsky	973
		974	/* Draw cursor */
2025	jermar	975	for (i = 0; i < pointer_height; i++)
		976	for (j = 0; j < pointer_width; j++) {
		977	bytepos = i * ((pointer_width - 1) / 8 + 1) + j / 8;
2070	jermar	978	visibility = pointer_mask_bits[bytepos] &
2619	jermar	979	(1 << (j % 8));
1711	palkovsky	980	if (visibility) {
2619	jermar	981	color = pointer_bits[bytepos] &
		982	(1 << (j % 8)) ? 0 : 0xffffff;
2025	jermar	983	if (pointer_x + j < screen.xres && pointer_y +
2619	jermar	984	i < screen.yres)
2025	jermar	985	putpixel(&viewports[0], pointer_x + j,
2619	jermar	986	pointer_y + i, color);
1711	palkovsky	987	}
		988	}
		989	pointer_shown = 1;
		990	}
		991
2070	jermar	992	static void
		993	mouse_hide(void)
1711	palkovsky	994	{
		995	/* Restore image under the cursor */
		996	if (pointer_shown) {
		997	draw_pixmap(pointer_vport, pointer_pixmap);
		998	pointer_shown = 0;
		999	}
		1000	}
		1001
2070	jermar	1002	static void
		1003	mouse_move(unsigned int x, unsigned int y)
1711	palkovsky	1004	{
		1005	mouse_hide();
		1006	pointer_x = x;
		1007	pointer_y = y;
		1008	mouse_show();
		1009	}
		1010
2070	jermar	1011	static int
		1012	anim_handle(ipc_callid_t callid, ipc_call_t *call, int vp)
1646	palkovsky	1013	{
		1014	int handled = 1;
		1015	int retval = 0;
		1016	int i,nvp;
		1017	int newval;
		1018
		1019	switch (IPC_GET_METHOD(*call)) {
		1020	case FB_ANIM_CREATE:
		1021	nvp = IPC_GET_ARG1(*call);
		1022	if (nvp == -1)
		1023	nvp = vp;
2025	jermar	1024	if (nvp >= MAX_VIEWPORTS \|\| nvp < 0 \|\|
		1025	!viewports[nvp].initialized) {
1646	palkovsky	1026	retval = EINVAL;
		1027	break;
		1028	}
2025	jermar	1029	for (i = 0; i < MAX_ANIMATIONS; i++) {
		1030	if (!animations[i].initialized)
1646	palkovsky	1031	break;
		1032	}
		1033	if (i == MAX_ANIMATIONS) {
		1034	retval = ELIMIT;
		1035	break;
		1036	}
		1037	animations[i].initialized = 1;
		1038	animations[i].animlen = 0;
		1039	animations[i].pos = 0;
		1040	animations[i].enabled = 0;
		1041	animations[i].vp = nvp;
		1042	retval = i;
		1043	break;
		1044	case FB_ANIM_DROP:
		1045	i = IPC_GET_ARG1(*call);
1720	palkovsky	1046	if (i >= MAX_ANIMATIONS \|\| i < 0) {
1646	palkovsky	1047	retval = EINVAL;
		1048	break;
		1049	}
		1050	animations[i].initialized = 0;
		1051	break;
		1052	case FB_ANIM_ADDPIXMAP:
		1053	i = IPC_GET_ARG1(*call);
2025	jermar	1054	if (i >= MAX_ANIMATIONS \|\| i < 0 \|\|
		1055	!animations[i].initialized) {
1646	palkovsky	1056	retval = EINVAL;
		1057	break;
		1058	}
		1059	if (animations[i].animlen == MAX_ANIM_LEN) {
		1060	retval = ELIMIT;
		1061	break;
		1062	}
		1063	newval = IPC_GET_ARG2(*call);
2025	jermar	1064	if (newval < 0 \|\| newval > MAX_PIXMAPS \|\|
		1065	!pixmaps[newval].data) {
1646	palkovsky	1066	retval = EINVAL;
		1067	break;
		1068	}
		1069	animations[i].pixmaps[animations[i].animlen++] = newval;
		1070	break;
		1071	case FB_ANIM_CHGVP:
		1072	i = IPC_GET_ARG1(*call);
		1073	if (i >= MAX_ANIMATIONS \|\| i < 0) {
		1074	retval = EINVAL;
		1075	break;
		1076	}
		1077	nvp = IPC_GET_ARG2(*call);
		1078	if (nvp == -1)
		1079	nvp = vp;
2025	jermar	1080	if (nvp >= MAX_VIEWPORTS \|\| nvp < 0 \|\|
		1081	!viewports[nvp].initialized) {
1646	palkovsky	1082	retval = EINVAL;
		1083	break;
		1084	}
		1085	animations[i].vp = nvp;
		1086	break;
		1087	case FB_ANIM_START:
		1088	case FB_ANIM_STOP:
		1089	i = IPC_GET_ARG1(*call);
		1090	if (i >= MAX_ANIMATIONS \|\| i < 0) {
		1091	retval = EINVAL;
		1092	break;
		1093	}
		1094	newval = (IPC_GET_METHOD(*call) == FB_ANIM_START);
		1095	if (newval ^ animations[i].enabled) {
		1096	animations[i].enabled = newval;
		1097	anims_enabled += newval ? 1 : -1;
		1098	}
		1099	break;
		1100	default:
		1101	handled = 0;
		1102	}
		1103	if (handled)
2619	jermar	1104	ipc_answer_0(callid, retval);
1646	palkovsky	1105	return handled;
		1106	}
		1107
1552	palkovsky	1108	/** Handler for messages concerning pixmap handling */
2070	jermar	1109	static int
		1110	pixmap_handle(ipc_callid_t callid, ipc_call_t *call, int vp)
1552	palkovsky	1111	{
		1112	int handled = 1;
		1113	int retval = 0;
		1114	int i,nvp;
		1115
		1116	switch (IPC_GET_METHOD(*call)) {
		1117	case FB_VP_DRAW_PIXMAP:
		1118	nvp = IPC_GET_ARG1(*call);
		1119	if (nvp == -1)
		1120	nvp = vp;
2025	jermar	1121	if (nvp < 0 \|\| nvp >= MAX_VIEWPORTS \|\|
		1122	!viewports[nvp].initialized) {
1552	palkovsky	1123	retval = EINVAL;
		1124	break;
		1125	}
		1126	i = IPC_GET_ARG2(*call);
		1127	retval = draw_pixmap(nvp, i);
		1128	break;
		1129	case FB_VP2PIXMAP:
		1130	nvp = IPC_GET_ARG1(*call);
		1131	if (nvp == -1)
		1132	nvp = vp;
2025	jermar	1133	if (nvp < 0 \|\| nvp >= MAX_VIEWPORTS \|\|
		1134	!viewports[nvp].initialized)
1552	palkovsky	1135	retval = EINVAL;
		1136	else
1711	palkovsky	1137	retval = save_vp_to_pixmap(&viewports[nvp]);
1552	palkovsky	1138	break;
		1139	case FB_DROP_PIXMAP:
		1140	i = IPC_GET_ARG1(*call);
		1141	if (i >= MAX_PIXMAPS) {
		1142	retval = EINVAL;
		1143	break;
		1144	}
		1145	if (pixmaps[i].data) {
		1146	free(pixmaps[i].data);
		1147	pixmaps[i].data = NULL;
		1148	}
		1149	break;
		1150	default:
		1151	handled = 0;
		1152	}
		1153
		1154	if (handled)
2619	jermar	1155	ipc_answer_0(callid, retval);
1552	palkovsky	1156	return handled;
		1157
		1158	}
		1159
1498	palkovsky	1160	/** Function for handling connections to FB
		1161	*
		1162	*/
2070	jermar	1163	static void
		1164	fb_client_connection(ipc_callid_t iid, ipc_call_t *icall)
1363	vana	1165	{
1485	palkovsky	1166	ipc_callid_t callid;
		1167	ipc_call_t call;
		1168	int retval;
		1169	int i;
		1170	unsigned int row,col;
		1171	char c;
1486	palkovsky	1172
1485	palkovsky	1173	int vp = 0;
1486	palkovsky	1174	viewport_t *vport = &viewports[0];
1363	vana	1175
1485	palkovsky	1176	if (client_connected) {
2619	jermar	1177	ipc_answer_0(iid, ELIMIT);
1485	palkovsky	1178	return;
		1179	}
1486	palkovsky	1180	client_connected = 1;
2619	jermar	1181	ipc_answer_0(iid, EOK); /* Accept connection */
1363	vana	1182
1485	palkovsky	1183	while (1) {
1646	palkovsky	1184	if (vport->cursor_active \|\| anims_enabled)
2070	jermar	1185	callid = async_get_call_timeout(&call, 250000);
1640	palkovsky	1186	else
		1187	callid = async_get_call(&call);
		1188
1713	palkovsky	1189	mouse_hide();
1500	palkovsky	1190	if (!callid) {
1673	palkovsky	1191	cursor_blink(vport);
1646	palkovsky	1192	anims_tick();
1723	palkovsky	1193	mouse_show();
1500	palkovsky	1194	continue;
		1195	}
1547	palkovsky	1196	if (shm_handle(callid, &call, vp))
		1197	continue;
1552	palkovsky	1198	if (pixmap_handle(callid, &call, vp))
		1199	continue;
1646	palkovsky	1200	if (anim_handle(callid, &call, vp))
		1201	continue;
1547	palkovsky	1202
1485	palkovsky	1203	switch (IPC_GET_METHOD(call)) {
		1204	case IPC_M_PHONE_HUNGUP:
		1205	client_connected = 0;
		1206	/* cleanup other viewports */
2025	jermar	1207	for (i = 1; i < MAX_VIEWPORTS; i++)
1486	palkovsky	1208	vport->initialized = 0;
1485	palkovsky	1209	return; /* Exit thread */
1505	palkovsky	1210
1485	palkovsky	1211	case FB_PUTCHAR:
1558	palkovsky	1212	case FB_TRANS_PUTCHAR:
1485	palkovsky	1213	c = IPC_GET_ARG1(call);
		1214	row = IPC_GET_ARG2(call);
		1215	col = IPC_GET_ARG3(call);
1486	palkovsky	1216	if (row >= vport->rows \|\| col >= vport->cols) {
1485	palkovsky	1217	retval = EINVAL;
		1218	break;
		1219	}
2619	jermar	1220	ipc_answer_0(callid, EOK);
1486	palkovsky	1221
2025	jermar	1222	draw_char(vport, c, row, col, vport->style,
2619	jermar	1223	IPC_GET_METHOD(call) == FB_TRANS_PUTCHAR);
1485	palkovsky	1224	continue; /* msg already answered */
		1225	case FB_CLEAR:
1673	palkovsky	1226	clear_port(vport);
		1227	cursor_print(vport);
1485	palkovsky	1228	retval = 0;
		1229	break;
1486	palkovsky	1230	case FB_CURSOR_GOTO:
		1231	row = IPC_GET_ARG1(call);
		1232	col = IPC_GET_ARG2(call);
		1233	if (row >= vport->rows \|\| col >= vport->cols) {
		1234	retval = EINVAL;
		1235	break;
		1236	}
		1237	retval = 0;
1673	palkovsky	1238	cursor_hide(vport);
1486	palkovsky	1239	vport->cur_col = col;
		1240	vport->cur_row = row;
1673	palkovsky	1241	cursor_print(vport);
1486	palkovsky	1242	break;
		1243	case FB_CURSOR_VISIBILITY:
1673	palkovsky	1244	cursor_hide(vport);
1500	palkovsky	1245	vport->cursor_active = IPC_GET_ARG1(call);
1673	palkovsky	1246	cursor_print(vport);
1486	palkovsky	1247	retval = 0;
		1248	break;
1485	palkovsky	1249	case FB_GET_CSIZE:
2619	jermar	1250	ipc_answer_2(callid, EOK, vport->rows, vport->cols);
1485	palkovsky	1251	continue;
1486	palkovsky	1252	case FB_SCROLL:
		1253	i = IPC_GET_ARG1(call);
		1254	if (i > vport->rows \|\| i < (- (int)vport->rows)) {
		1255	retval = EINVAL;
		1256	break;
		1257	}
1673	palkovsky	1258	cursor_hide(vport);
		1259	scroll_port(vport, i*FONT_SCANLINES);
		1260	cursor_print(vport);
1486	palkovsky	1261	retval = 0;
		1262	break;
1672	palkovsky	1263	case FB_VIEWPORT_DB:
		1264	/* Enable double buffering */
		1265	i = IPC_GET_ARG1(call);
		1266	if (i == -1)
		1267	i = vp;
		1268	if (i < 0 \|\| i >= MAX_VIEWPORTS) {
		1269	retval = EINVAL;
		1270	break;
		1271	}
2619	jermar	1272	if (!viewports[i].initialized ) {
1672	palkovsky	1273	retval = EADDRNOTAVAIL;
		1274	break;
		1275	}
		1276	viewports[i].dboffset = 0;
		1277	if (IPC_GET_ARG2(call) == 1 && !viewports[i].dbdata)
2619	jermar	1278	viewports[i].dbdata =
		1279	malloc(screen.pixelbytes *
		1280	viewports[i].width * viewports[i].height);
2025	jermar	1281	else if (IPC_GET_ARG2(call) == 0 &&
2619	jermar	1282	viewports[i].dbdata) {
1672	palkovsky	1283	free(viewports[i].dbdata);
		1284	viewports[i].dbdata = NULL;
		1285	}
		1286	retval = 0;
		1287	break;
1486	palkovsky	1288	case FB_VIEWPORT_SWITCH:
		1289	i = IPC_GET_ARG1(call);
		1290	if (i < 0 \|\| i >= MAX_VIEWPORTS) {
		1291	retval = EINVAL;
		1292	break;
		1293	}
		1294	if (! viewports[i].initialized ) {
		1295	retval = EADDRNOTAVAIL;
		1296	break;
		1297	}
1673	palkovsky	1298	cursor_hide(vport);
1486	palkovsky	1299	vp = i;
		1300	vport = &viewports[vp];
1673	palkovsky	1301	cursor_print(vport);
1486	palkovsky	1302	retval = 0;
		1303	break;
		1304	case FB_VIEWPORT_CREATE:
		1305	retval = viewport_create(IPC_GET_ARG1(call) >> 16,
2619	jermar	1306	IPC_GET_ARG1(call) & 0xffff,
		1307	IPC_GET_ARG2(call) >> 16,
		1308	IPC_GET_ARG2(call) & 0xffff);
1486	palkovsky	1309	break;
		1310	case FB_VIEWPORT_DELETE:
		1311	i = IPC_GET_ARG1(call);
		1312	if (i < 0 \|\| i >= MAX_VIEWPORTS) {
		1313	retval = EINVAL;
		1314	break;
		1315	}
		1316	if (! viewports[i].initialized ) {
		1317	retval = EADDRNOTAVAIL;
		1318	break;
		1319	}
		1320	viewports[i].initialized = 0;
1672	palkovsky	1321	if (viewports[i].dbdata) {
		1322	free(viewports[i].dbdata);
		1323	viewports[i].dbdata = NULL;
		1324	}
1486	palkovsky	1325	retval = 0;
		1326	break;
		1327	case FB_SET_STYLE:
1509	palkovsky	1328	vport->style.fg_color = IPC_GET_ARG1(call);
		1329	vport->style.bg_color = IPC_GET_ARG2(call);
1486	palkovsky	1330	retval = 0;
		1331	break;
		1332	case FB_GET_RESOLUTION:
2619	jermar	1333	ipc_answer_2(callid, EOK, screen.xres, screen.yres);
1486	palkovsky	1334	continue;
1707	palkovsky	1335	case FB_POINTER_MOVE:
1723	palkovsky	1336	pointer_enabled = 1;
1711	palkovsky	1337	mouse_move(IPC_GET_ARG1(call), IPC_GET_ARG2(call));
1720	palkovsky	1338	retval = 0;
1707	palkovsky	1339	break;
1485	palkovsky	1340	default:
		1341	retval = ENOENT;
		1342	}
2619	jermar	1343	ipc_answer_0(callid, retval);
1363	vana	1344	}
1485	palkovsky	1345	}
1363	vana	1346
1498	palkovsky	1347	/** Initialization of framebuffer */
2070	jermar	1348	int
		1349	fb_init(void)
1485	palkovsky	1350	{
1501	palkovsky	1351	void *fb_ph_addr;
1490	palkovsky	1352	unsigned int fb_width;
		1353	unsigned int fb_height;
		1354	unsigned int fb_scanline;
1993	decky	1355	unsigned int fb_visual;
		1356	bool fb_invert_colors;
1501	palkovsky	1357	void *fb_addr;
		1358	size_t asz;
1363	vana	1359
1490	palkovsky	1360	async_set_client_connection(fb_client_connection);
1363	vana	1361
1886	jermar	1362	fb_ph_addr = (void *) sysinfo_value("fb.address.physical");
		1363	fb_width = sysinfo_value("fb.width");
		1364	fb_height = sysinfo_value("fb.height");
		1365	fb_scanline = sysinfo_value("fb.scanline");
1993	decky	1366	fb_visual = sysinfo_value("fb.visual");
1886	jermar	1367	fb_invert_colors = sysinfo_value("fb.invert-colors");
1490	palkovsky	1368
1993	decky	1369	asz = fb_scanline * fb_height;
2141	jermar	1370	fb_addr = as_get_mappable_page(asz);
1485	palkovsky	1371
2025	jermar	1372	physmem_map(fb_ph_addr, fb_addr, ALIGN_UP(asz, PAGE_SIZE) >>
2619	jermar	1373	PAGE_WIDTH, AS_AREA_READ \| AS_AREA_WRITE);
1886	jermar	1374
2015	jermar	1375	if (screen_init(fb_addr, fb_width, fb_height, fb_scanline, fb_visual,
2619	jermar	1376	fb_invert_colors))
1993	decky	1377	return 0;
		1378
		1379	return -1;
1363	vana	1380	}
1490	palkovsky	1381
1649	cejka	1382	/**
		1383	* @}
		1384	*/

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(root)/branches/tracing/uspace/srv/fb/fb.c – Rev 2797