WebSVN – HelenOS – Blame – //trunk/uspace/srv/fb/fb.c

Rev	Author	Line No.	Line
1363	vana	1	/*
3707	decky	2	* Copyright (c) 2008 Martin Decky
2071	jermar	3	* Copyright (c) 2006 Jakub Vana
		4	* Copyright (c) 2006 Ondrej Palkovsky
1363	vana	5	* All rights reserved.
		6	*
		7	* Redistribution and use in source and binary forms, with or without
		8	* modification, are permitted provided that the following conditions
		9	* are met:
		10	*
		11	* - Redistributions of source code must retain the above copyright
		12	* notice, this list of conditions and the following disclaimer.
		13	* - Redistributions in binary form must reproduce the above copyright
		14	* notice, this list of conditions and the following disclaimer in the
		15	* documentation and/or other materials provided with the distribution.
		16	* - The name of the author may not be used to endorse or promote products
		17	* derived from this software without specific prior written permission.
		18	*
		19	* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
		20	* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
		21	* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
		22	* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
		23	* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
		24	* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
		25	* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
		26	* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
		27	* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
		28	* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
		29	*/
		30
1740	jermar	31	/**
		32	* @defgroup fb Graphical framebuffer
		33	* @brief HelenOS graphical framebuffer.
1649	cejka	34	* @ingroup fbs
		35	* @{
3707	decky	36	*/
1888	jermar	37
1649	cejka	38	/** @file
		39	*/
		40
1430	jermar	41	#include <stdlib.h>
		42	#include <unistd.h>
		43	#include <string.h>
1363	vana	44	#include <ddi.h>
		45	#include <sysinfo.h>
		46	#include <align.h>
		47	#include <as.h>
		48	#include <ipc/fb.h>
		49	#include <ipc/ipc.h>
1430	jermar	50	#include <ipc/ns.h>
1363	vana	51	#include <ipc/services.h>
		52	#include <kernel/errno.h>
1993	decky	53	#include <kernel/genarch/fb/visuals.h>
1392	palkovsky	54	#include <async.h>
1993	decky	55	#include <bool.h>
1505	palkovsky	56
1404	palkovsky	57	#include "font-8x16.h"
1363	vana	58	#include "fb.h"
1505	palkovsky	59	#include "main.h"
		60	#include "../console/screenbuffer.h"
1547	palkovsky	61	#include "ppm.h"
1363	vana	62
1711	palkovsky	63	#include "pointer.xbm"
		64	#include "pointer_mask.xbm"
		65
3707	decky	66	#define DEFAULT_BGCOLOR 0xf0f0f0
		67	#define DEFAULT_FGCOLOR 0x000000
1363	vana	68
3707	decky	69	#define MAX_ANIM_LEN 8
		70	#define MAX_ANIMATIONS 4
		71	#define MAX_PIXMAPS 256 /*< Maximum number of saved pixmaps /
		72	#define MAX_VIEWPORTS 128 /*< Viewport is a rectangular area on the screen /
1363	vana	73
3707	decky	74	typedef void (rgb_conv_t)(void , uint32_t);
1363	vana	75
1485	palkovsky	76	struct {
3707	decky	77	uint8_t *fb_addr;
		78
1875	jermar	79	unsigned int xres;
		80	unsigned int yres;
3707	decky	81
1875	jermar	82	unsigned int scanline;
3707	decky	83	unsigned int glyphscanline;
		84
1875	jermar	85	unsigned int pixelbytes;
3707	decky	86	unsigned int glyphbytes;
		87
		88	rgb_conv_t rgb_conv;
1485	palkovsky	89	} screen;
1363	vana	90
1485	palkovsky	91	typedef struct {
3707	decky	92	bool initialized;
		93	unsigned int x;
		94	unsigned int y;
		95	unsigned int width;
		96	unsigned int height;
		97
1485	palkovsky	98	/* Text support in window */
3707	decky	99	unsigned int cols;
		100	unsigned int rows;
		101
		102	/* Style and glyphs for text printing */
1509	palkovsky	103	style_t style;
3707	decky	104	uint8_t *glyphs;
		105	uint8_t *bgpixel;
		106
1485	palkovsky	107	/* Auto-cursor position */
3707	decky	108	bool cursor_active;
		109	unsigned int cur_col;
		110	unsigned int cur_row;
		111	bool cursor_shown;
		112
		113	/* Back buffer */
		114	unsigned int bbsize;
		115	uint8_t *backbuf;
1485	palkovsky	116	} viewport_t;
1363	vana	117
1646	palkovsky	118	typedef struct {
3707	decky	119	bool initialized;
		120	bool enabled;
1646	palkovsky	121	unsigned int vp;
3707	decky	122
1646	palkovsky	123	unsigned int pos;
		124	unsigned int animlen;
		125	unsigned int pixmaps[MAX_ANIM_LEN];
		126	} animation_t;
3707	decky	127
1646	palkovsky	128	static animation_t animations[MAX_ANIMATIONS];
3707	decky	129	static bool anims_enabled;
1646	palkovsky	130
1552	palkovsky	131	typedef struct {
		132	unsigned int width;
		133	unsigned int height;
1781	jermar	134	uint8_t *data;
1552	palkovsky	135	} pixmap_t;
3707	decky	136
1552	palkovsky	137	static pixmap_t pixmaps[MAX_PIXMAPS];
1485	palkovsky	138	static viewport_t viewports[128];
		139
3707	decky	140	static bool client_connected = false; /*< Allow only 1 connection /
1485	palkovsky	141
3723	svoboda	142	static void draw_glyph(viewport_t *vport, bool cursor, unsigned int col,
		143	unsigned int row);
		144
		145
3707	decky	146	#define RED(x, bits) ((x >> (8 + 8 + 8 - bits)) & ((1 << bits) - 1))
		147	#define GREEN(x, bits) ((x >> (8 + 8 - bits)) & ((1 << bits) - 1))
		148	#define BLUE(x, bits) ((x >> (8 - bits)) & ((1 << bits) - 1))
1363	vana	149
3707	decky	150	#define COL2X(col) ((col) * FONT_WIDTH)
		151	#define ROW2Y(row) ((row) * FONT_SCANLINES)
1363	vana	152
3707	decky	153	#define X2COL(x) ((x) / FONT_WIDTH)
		154	#define Y2ROW(y) ((y) / FONT_SCANLINES)
1363	vana	155
3707	decky	156	#define FB_POS(x, y) ((y) * screen.scanline + (x) * screen.pixelbytes)
		157	#define BB_POS(vport, col, row) ((row) * vport->cols + (col))
		158	#define GLYPH_POS(glyph, y, cursor) (((glyph) + (cursor) * FONT_GLYPHS) * screen.glyphbytes + (y) * screen.glyphscanline)
1875	jermar	159
1363	vana	160
3707	decky	161	/** ARGB 8:8:8:8 conversion
		162	*
		163	*/
		164	static void rgb_0888(void *dst, uint32_t rgb)
1363	vana	165	{
3707	decky	166	((uint32_t ) dst) = rgb & 0xffffff;
1363	vana	167	}
		168
1994	decky	169
3707	decky	170	/** ABGR 8:8:8:8 conversion
		171	*
		172	*/
		173	static void bgr_0888(void *dst, uint32_t rgb)
1994	decky	174	{
3707	decky	175	((uint32_t ) dst)
		176	= (BLUE(rgb, 8) << 16) \| (GREEN(rgb, 8) << 8) \| RED(rgb, 8);
1994	decky	177	}
		178
3707	decky	179
		180	/** BGR 8:8:8 conversion
		181	*
		182	*/
		183	static void rgb_888(void *dst, uint32_t rgb)
1363	vana	184	{
1871	jermar	185	#if defined(FB_INVERT_ENDIAN)
3710	decky	186	((uint8_t *) dst)[0] = RED(rgb, 8);
		187	((uint8_t *) dst)[1] = GREEN(rgb, 8);
		188	((uint8_t *) dst)[2] = BLUE(rgb, 8);
1363	vana	189	#else
3710	decky	190	((uint8_t *) dst)[0] = BLUE(rgb, 8);
		191	((uint8_t *) dst)[1] = GREEN(rgb, 8);
		192	((uint8_t *) dst)[2] = RED(rgb, 8);
1363	vana	193	#endif
		194	}
		195
		196
3707	decky	197	/** RGB 5:5:5 conversion
		198	*
		199	*/
		200	static void rgb_555(void *dst, uint32_t rgb)
1993	decky	201	{
3707	decky	202	((uint16_t ) dst)
		203	= (RED(rgb, 5) << 10) \| (GREEN(rgb, 5) << 5) \| BLUE(rgb, 5);
1993	decky	204	}
		205
		206
3707	decky	207	/** RGB 5:6:5 conversion
		208	*
		209	*/
		210	static void rgb_565(void *dst, uint32_t rgb)
1363	vana	211	{
3707	decky	212	((uint16_t ) dst)
		213	= (RED(rgb, 5) << 11) \| (GREEN(rgb, 6) << 5) \| BLUE(rgb, 5);
1363	vana	214	}
		215
		216
3707	decky	217	/** RGB 3:2:3
		218	*
		219	*/
		220	static void rgb_323(void *dst, uint32_t rgb)
1363	vana	221	{
3707	decky	222	((uint8_t ) dst)
		223	= ~((RED(rgb, 3) << 5) \| (GREEN(rgb, 2) << 3) \| BLUE(rgb, 3));
1363	vana	224	}
		225
3725	svoboda	226	/** Draw a filled rectangle.
		227	*
		228	* @note Need real implementation that does not access VRAM twice.
		229	*/
3723	svoboda	230	static void draw_filled_rect(unsigned int x0, unsigned int y0, unsigned int x1,
		231	unsigned int y1, uint32_t color)
		232	{
		233	unsigned int x, y;
3725	svoboda	234	unsigned int copy_bytes;
		235
		236	uint8_t sp, dp;
3723	svoboda	237	uint8_t cbuf[4];
1363	vana	238
3725	svoboda	239	if (y0 >= y1 \|\| x0 >= x1) return;
3723	svoboda	240	screen.rgb_conv(cbuf, color);
		241
3725	svoboda	242	sp = &screen.fb_addr[FB_POS(x0, y0)];
		243	dp = sp;
		244
		245	/* Draw the first line. */
		246	for (x = x0; x < x1; x++) {
		247	memcpy(dp, cbuf, screen.pixelbytes);
		248	dp += screen.pixelbytes;
3723	svoboda	249	}
3725	svoboda	250
		251	dp = sp + screen.scanline;
		252	copy_bytes = (x1 - x0) * screen.pixelbytes;
		253
		254	/* Draw the remaining lines by copying. */
		255	for (y = y0 + 1; y < y1; y++) {
		256	memcpy(dp, sp, copy_bytes);
		257	dp += screen.scanline;
		258	}
3723	svoboda	259	}
		260
		261	/** Redraw viewport.
1498	palkovsky	262	*
3707	decky	263	* @param vport Viewport to redraw
		264	*
1498	palkovsky	265	*/
3707	decky	266	static void vport_redraw(viewport_t *vport)
1485	palkovsky	267	{
3723	svoboda	268	unsigned int row, col;
		269
3707	decky	270	for (row = 0; row < vport->rows; row++) {
3723	svoboda	271	for (col = 0; col < vport->cols; col++) {
		272	draw_glyph(vport, false, col, row);
3707	decky	273	}
1672	palkovsky	274	}
3723	svoboda	275
3707	decky	276	if (COL2X(vport->cols) < vport->width) {
3723	svoboda	277	draw_filled_rect(
		278	vport->x + COL2X(vport->cols), vport->y,
		279	vport->x + vport->width, vport->y + vport->height,
		280	vport->style.bg_color);
1672	palkovsky	281	}
3723	svoboda	282
3707	decky	283	if (ROW2Y(vport->rows) < vport->height) {
3723	svoboda	284	draw_filled_rect(
		285	vport->x, vport->y + ROW2Y(vport->rows),
		286	vport->x + vport->width, vport->y + vport->height,
		287	vport->style.bg_color);
1672	palkovsky	288	}
1559	palkovsky	289	}
		290
3707	decky	291
3724	svoboda	292	/** Clear viewport.
3707	decky	293	*
		294	* @param vport Viewport to clear
		295	*
		296	*/
		297	static void vport_clear(viewport_t *vport)
1363	vana	298	{
3707	decky	299	memset(vport->backbuf, 0, vport->bbsize);
		300	vport_redraw(vport);
1363	vana	301	}
		302
3724	svoboda	303	/** Scroll viewport by the specified number of lines.
1485	palkovsky	304	*
1709	jermar	305	* @param vport Viewport to scroll
3707	decky	306	* @param lines Number of lines to scroll
		307	*
1485	palkovsky	308	*/
3707	decky	309	static void vport_scroll(viewport_t *vport, int lines)
1363	vana	310	{
3726	svoboda	311	unsigned int row, col;
		312
3724	svoboda	313	/*
		314	* Scroll backbuffer.
		315	*/
3723	svoboda	316
1672	palkovsky	317	if (lines > 0) {
3726	svoboda	318	memcpy(vport->backbuf, vport->backbuf + vport->cols * lines,
3723	svoboda	319	vport->cols * (vport->rows - lines));
		320	memset(&vport->backbuf[BB_POS(vport, 0, vport->rows - lines)],
		321	0, vport->cols * lines);
3707	decky	322	} else {
3726	svoboda	323	memcpy(vport->backbuf - vport->cols * lines, vport->backbuf,
3723	svoboda	324	vport->cols * (vport->rows + lines));
3707	decky	325	memset(vport->backbuf, 0, - vport->cols * lines);
1672	palkovsky	326	}
3723	svoboda	327
3726	svoboda	328	/*
		329	* Redraw.
3724	svoboda	330	*/
		331
3726	svoboda	332	for (row = 0; row < vport->rows; row++) {
		333	for (col = 0; col < vport->cols; col++) {
		334	draw_glyph(vport, false, col, row);
		335	}
3723	svoboda	336	}
1672	palkovsky	337	}
		338
3707	decky	339	/** Render glyphs
1558	palkovsky	340	*
3707	decky	341	* Convert glyphs from device independent font
		342	* description to current visual representation.
		343	*
		344	* @param vport Viewport
		345	*
1558	palkovsky	346	*/
3707	decky	347	static void render_glyphs(viewport_t* vport)
1363	vana	348	{
3707	decky	349	unsigned int glyph;
		350
		351	for (glyph = 0; glyph < FONT_GLYPHS; glyph++) {
		352	unsigned int y;
		353
		354	for (y = 0; y < FONT_SCANLINES; y++) {
		355	unsigned int x;
		356
		357	for (x = 0; x < FONT_WIDTH; x++) {
		358	screen.rgb_conv(&vport->glyphs[GLYPH_POS(glyph, y, false) + x * screen.pixelbytes],
		359	(fb_font[glyph * FONT_SCANLINES + y] & (1 << (7 - x)))
		360	? vport->style.fg_color : vport->style.bg_color);
		361
		362	uint32_t curcolor;
		363
		364	if (y < FONT_SCANLINES - 2)
		365	curcolor =
		366	(fb_font[glyph * FONT_SCANLINES + y] & (1 << (7 - x)))
		367	? vport->style.fg_color : vport->style.bg_color;
		368	else
		369	curcolor = vport->style.fg_color;
		370
		371	screen.rgb_conv(&vport->glyphs[GLYPH_POS(glyph, y, true) + x * screen.pixelbytes], curcolor);
		372	}
1509	palkovsky	373	}
		374	}
3707	decky	375
		376	screen.rgb_conv(vport->bgpixel, vport->style.bg_color);
1363	vana	377	}
		378
		379
1485	palkovsky	380	/** Create new viewport
1363	vana	381	*
3707	decky	382	* @param x Origin of the viewport (x).
		383	* @param y Origin of the viewport (y).
		384	* @param width Width of the viewport.
		385	* @param height Height of the viewport.
		386	*
		387	* @return New viewport number.
		388	*
1363	vana	389	*/
3707	decky	390	static int vport_create(unsigned int x, unsigned int y,
		391	unsigned int width, unsigned int height)
1363	vana	392	{
3707	decky	393	unsigned int i;
		394
2070	jermar	395	for (i = 0; i < MAX_VIEWPORTS; i++) {
1485	palkovsky	396	if (!viewports[i].initialized)
1363	vana	397	break;
		398	}
1485	palkovsky	399	if (i == MAX_VIEWPORTS)
		400	return ELIMIT;
3707	decky	401
		402	unsigned int cols = width / FONT_WIDTH;
		403	unsigned int rows = height / FONT_SCANLINES;
		404	unsigned int bbsize = cols * rows;
		405	unsigned int glyphsize = 2 * FONT_GLYPHS * screen.glyphbytes;
		406
		407	uint8_t backbuf = (uint8_t ) malloc(bbsize);
		408	if (!backbuf)
		409	return ENOMEM;
		410
		411	uint8_t glyphs = (uint8_t ) malloc(glyphsize);
		412	if (!glyphs) {
		413	free(backbuf);
		414	return ENOMEM;
		415	}
		416
		417	uint8_t bgpixel = (uint8_t ) malloc(screen.pixelbytes);
		418	if (!bgpixel) {
		419	free(glyphs);
		420	free(backbuf);
		421	return ENOMEM;
		422	}
		423
		424	memset(backbuf, 0, bbsize);
		425	memset(glyphs, 0, glyphsize);
		426	memset(bgpixel, 0, screen.pixelbytes);
		427
1485	palkovsky	428	viewports[i].x = x;
		429	viewports[i].y = y;
		430	viewports[i].width = width;
		431	viewports[i].height = height;
1363	vana	432
3707	decky	433	viewports[i].cols = cols;
		434	viewports[i].rows = rows;
		435
1509	palkovsky	436	viewports[i].style.bg_color = DEFAULT_BGCOLOR;
		437	viewports[i].style.fg_color = DEFAULT_FGCOLOR;
1363	vana	438
3707	decky	439	viewports[i].glyphs = glyphs;
		440	viewports[i].bgpixel = bgpixel;
		441
1489	palkovsky	442	viewports[i].cur_col = 0;
		443	viewports[i].cur_row = 0;
3707	decky	444	viewports[i].cursor_active = false;
		445	viewports[i].cursor_shown = false;
		446
		447	viewports[i].bbsize = bbsize;
		448	viewports[i].backbuf = backbuf;
		449
		450	viewports[i].initialized = true;
		451
		452	render_glyphs(&viewports[i]);
		453
1485	palkovsky	454	return i;
1363	vana	455	}
		456
3707	decky	457
1363	vana	458	/** Initialize framebuffer as a chardev output device
		459	*
3707	decky	460	* @param addr Address of the framebuffer
		461	* @param xres Screen width in pixels
		462	* @param yres Screen height in pixels
		463	* @param visual Bits per pixel (8, 16, 24, 32)
		464	* @param scan Bytes per one scanline
1363	vana	465	*
		466	*/
3707	decky	467	static bool screen_init(void *addr, unsigned int xres, unsigned int yres,
		468	unsigned int scan, unsigned int visual)
1363	vana	469	{
1993	decky	470	switch (visual) {
		471	case VISUAL_INDIRECT_8:
3707	decky	472	screen.rgb_conv = rgb_323;
1886	jermar	473	screen.pixelbytes = 1;
		474	break;
1993	decky	475	case VISUAL_RGB_5_5_5:
3707	decky	476	screen.rgb_conv = rgb_555;
1886	jermar	477	screen.pixelbytes = 2;
		478	break;
1993	decky	479	case VISUAL_RGB_5_6_5:
3707	decky	480	screen.rgb_conv = rgb_565;
1993	decky	481	screen.pixelbytes = 2;
1886	jermar	482	break;
1993	decky	483	case VISUAL_RGB_8_8_8:
3707	decky	484	screen.rgb_conv = rgb_888;
1993	decky	485	screen.pixelbytes = 3;
		486	break;
		487	case VISUAL_RGB_8_8_8_0:
3707	decky	488	screen.rgb_conv = rgb_888;
1886	jermar	489	screen.pixelbytes = 4;
		490	break;
1993	decky	491	case VISUAL_RGB_0_8_8_8:
3707	decky	492	screen.rgb_conv = rgb_0888;
1993	decky	493	screen.pixelbytes = 4;
		494	break;
1994	decky	495	case VISUAL_BGR_0_8_8_8:
3707	decky	496	screen.rgb_conv = bgr_0888;
1994	decky	497	screen.pixelbytes = 4;
		498	break;
1993	decky	499	default:
		500	return false;
1363	vana	501	}
		502
3707	decky	503	screen.fb_addr = (unsigned char *) addr;
1485	palkovsky	504	screen.xres = xres;
		505	screen.yres = yres;
		506	screen.scanline = scan;
1363	vana	507
3707	decky	508	screen.glyphscanline = FONT_WIDTH * screen.pixelbytes;
		509	screen.glyphbytes = screen.glyphscanline * FONT_SCANLINES;
		510
1485	palkovsky	511	/* Create first viewport */
3707	decky	512	vport_create(0, 0, xres, yres);
1993	decky	513
		514	return true;
1485	palkovsky	515	}
1363	vana	516
3707	decky	517
		518	/** Draw glyph at given position relative to viewport
		519	*
		520	* @param vport Viewport identification
		521	* @param cursor Draw glyph with cursor
		522	* @param col Screen position relative to viewport
		523	* @param row Screen position relative to viewport
		524	*
		525	*/
		526	static void draw_glyph(viewport_t *vport, bool cursor, unsigned int col, unsigned int row)
1500	palkovsky	527	{
3707	decky	528	unsigned int x = vport->x + COL2X(col);
		529	unsigned int y = vport->y + ROW2Y(row);
		530	unsigned int yd;
		531
		532	uint8_t glyph = vport->backbuf[BB_POS(vport, col, row)];
		533
		534	for (yd = 0; yd < FONT_SCANLINES; yd++)
		535	memcpy(&screen.fb_addr[FB_POS(x, y + yd)],
		536	&vport->glyphs[GLYPH_POS(glyph, yd, cursor)], screen.glyphscanline);
		537	}
		538
		539
		540	/** Hide cursor if it is shown
		541	*
		542	*/
		543	static void cursor_hide(viewport_t *vport)
		544	{
		545	if ((vport->cursor_active) && (vport->cursor_shown)) {
		546	draw_glyph(vport, false, vport->cur_col, vport->cur_row);
		547	vport->cursor_shown = false;
1500	palkovsky	548	}
		549	}
		550
3707	decky	551
		552	/** Show cursor if cursor showing is enabled
		553	*
		554	*/
		555	static void cursor_show(viewport_t *vport)
1500	palkovsky	556	{
		557	/* Do not check for cursor_shown */
		558	if (vport->cursor_active) {
3707	decky	559	draw_glyph(vport, true, vport->cur_col, vport->cur_row);
		560	vport->cursor_shown = true;
1500	palkovsky	561	}
		562	}
		563
3707	decky	564
		565	/** Invert cursor, if it is enabled
		566	*
		567	*/
		568	static void cursor_blink(viewport_t *vport)
1500	palkovsky	569	{
		570	if (vport->cursor_shown)
1673	palkovsky	571	cursor_hide(vport);
1500	palkovsky	572	else
3707	decky	573	cursor_show(vport);
1500	palkovsky	574	}
		575
3707	decky	576
		577	/** Draw character at given position relative to viewport
		578	*
		579	* @param vport Viewport identification
		580	* @param c Character to draw
		581	* @param col Screen position relative to viewport
		582	* @param row Screen position relative to viewport
		583	*
1498	palkovsky	584	*/
3707	decky	585	static void draw_char(viewport_t *vport, uint8_t c, unsigned int col, unsigned int row)
1486	palkovsky	586	{
3707	decky	587	/* Do not hide cursor if we are going to overwrite it */
		588	if ((vport->cursor_active) && (vport->cursor_shown) &&
		589	((vport->cur_col != col) \|\| (vport->cur_row != row)))
		590	cursor_hide(vport);
1486	palkovsky	591
3715	svoboda	592	vport->backbuf[BB_POS(vport, col, row)] = c;
		593	draw_glyph(vport, false, col, row);
3707	decky	594
1489	palkovsky	595	vport->cur_col = col;
		596	vport->cur_row = row;
3707	decky	597
1489	palkovsky	598	vport->cur_col++;
2025	jermar	599	if (vport->cur_col >= vport->cols) {
1489	palkovsky	600	vport->cur_col = 0;
		601	vport->cur_row++;
		602	if (vport->cur_row >= vport->rows)
		603	vport->cur_row--;
1486	palkovsky	604	}
3707	decky	605
		606	cursor_show(vport);
1486	palkovsky	607	}
		608
3707	decky	609
1552	palkovsky	610	/** Draw text data to viewport
		611	*
1709	jermar	612	* @param vport Viewport id
3707	decky	613	* @param data Text data fitting exactly into viewport
		614	*
1552	palkovsky	615	*/
3707	decky	616	static void draw_text_data(viewport_t vport, keyfield_t data)
1505	palkovsky	617	{
3707	decky	618	unsigned int i;
		619
2025	jermar	620	for (i = 0; i < vport->cols * vport->rows; i++) {
3707	decky	621	unsigned int col = i % vport->cols;
		622	unsigned int row = i / vport->cols;
		623
		624	uint8_t glyph = vport->backbuf[BB_POS(vport, col, row)];
		625
		626	// TODO: use data[i].style
		627
		628	if (glyph != data[i].character) {
		629	vport->backbuf[BB_POS(vport, col, row)] = data[i].character;
		630	draw_glyph(vport, false, col, row);
		631	}
1505	palkovsky	632	}
3707	decky	633	cursor_show(vport);
1505	palkovsky	634	}
		635
3707	decky	636
		637	static void putpixel_pixmap(void *data, unsigned int x, unsigned int y, uint32_t color)
1555	palkovsky	638	{
3707	decky	639	int pm = ((int ) data);
		640	pixmap_t *pmap = &pixmaps[pm];
		641	unsigned int pos = (y * pmap->width + x) * screen.pixelbytes;
1555	palkovsky	642
3707	decky	643	screen.rgb_conv(&pmap->data[pos], color);
		644	}
		645
		646
		647	static void putpixel(void *data, unsigned int x, unsigned int y, uint32_t color)
		648	{
		649	viewport_t vport = (viewport_t ) data;
		650	unsigned int dx = vport->x + x;
		651	unsigned int dy = vport->y + y;
		652
		653	screen.rgb_conv(&screen.fb_addr[FB_POS(dx, dy)], color);
		654	}
		655
		656
		657	/** Return first free pixmap
		658	*
		659	*/
		660	static int find_free_pixmap(void)
		661	{
		662	unsigned int i;
		663
		664	for (i = 0; i < MAX_PIXMAPS; i++)
1555	palkovsky	665	if (!pixmaps[i].data)
		666	return i;
3707	decky	667
1555	palkovsky	668	return -1;
		669	}
		670
		671
3707	decky	672	/** Create a new pixmap and return appropriate ID
		673	*
		674	*/
		675	static int shm2pixmap(unsigned char *shm, size_t size)
1555	palkovsky	676	{
		677	int pm;
		678	pixmap_t *pmap;
3707	decky	679
1555	palkovsky	680	pm = find_free_pixmap();
		681	if (pm == -1)
		682	return ELIMIT;
3707	decky	683
1555	palkovsky	684	pmap = &pixmaps[pm];
		685
		686	if (ppm_get_data(shm, size, &pmap->width, &pmap->height))
		687	return EINVAL;
		688
		689	pmap->data = malloc(pmap->width * pmap->height * screen.pixelbytes);
		690	if (!pmap->data)
		691	return ENOMEM;
3707	decky	692
		693	ppm_draw(shm, size, 0, 0, pmap->width, pmap->height, putpixel_pixmap, (void *) &pm);
		694
1555	palkovsky	695	return pm;
		696	}
		697
3707	decky	698
1552	palkovsky	699	/** Handle shared memory communication calls
		700	*
		701	* Protocol for drawing pixmaps:
		702	* - FB_PREPARE_SHM(client shm identification)
2025	jermar	703	* - IPC_M_AS_AREA_SEND
3707	decky	704	* - FB_DRAW_PPM(startx, starty)
1552	palkovsky	705	* - FB_DROP_SHM
		706	*
		707	* Protocol for text drawing
2025	jermar	708	* - IPC_M_AS_AREA_SEND
1552	palkovsky	709	* - FB_DRAW_TEXT_DATA
		710	*
		711	* @param callid Callid of the current call
3707	decky	712	* @param call Current call data
		713	* @param vp Active viewport
1552	palkovsky	714	*
3707	decky	715	* @return false if the call was not handled byt this function, true otherwise
		716	*
		717	* Note: this function is not threads safe, you would have
1552	palkovsky	718	* to redefine static variables with __thread
3707	decky	719	*
1552	palkovsky	720	*/
3707	decky	721	static bool shm_handle(ipc_callid_t callid, ipc_call_t *call, int vp)
1547	palkovsky	722	{
		723	static keyfield_t *interbuffer = NULL;
		724	static size_t intersize = 0;
3707	decky	725
1720	palkovsky	726	static unsigned char *shm = NULL;
1555	palkovsky	727	static ipcarg_t shm_id = 0;
		728	static size_t shm_size;
3707	decky	729
		730	bool handled = true;
		731	int retval = EOK;
1547	palkovsky	732	viewport_t *vport = &viewports[vp];
3707	decky	733	unsigned int x;
		734	unsigned int y;
		735
1547	palkovsky	736	switch (IPC_GET_METHOD(*call)) {
2677	jermar	737	case IPC_M_SHARE_OUT:
1547	palkovsky	738	/* We accept one area for data interchange */
1555	palkovsky	739	if (IPC_GET_ARG1(*call) == shm_id) {
2141	jermar	740	void dest = as_get_mappable_page(IPC_GET_ARG2(call));
1555	palkovsky	741	shm_size = IPC_GET_ARG2(*call);
3707	decky	742	if (!ipc_answer_1(callid, EOK, (sysarg_t) dest))
1555	palkovsky	743	shm = dest;
1547	palkovsky	744	else
1555	palkovsky	745	shm_id = 0;
3707	decky	746
1555	palkovsky	747	if (shm[0] != 'P')
3707	decky	748	return false;
		749
		750	return true;
1547	palkovsky	751	} else {
		752	intersize = IPC_GET_ARG2(*call);
2015	jermar	753	receive_comm_area(callid, call, (void *) &interbuffer);
1547	palkovsky	754	}
3707	decky	755	return true;
1547	palkovsky	756	case FB_PREPARE_SHM:
1555	palkovsky	757	if (shm_id)
1547	palkovsky	758	retval = EBUSY;
		759	else
1555	palkovsky	760	shm_id = IPC_GET_ARG1(*call);
1547	palkovsky	761	break;
		762
		763	case FB_DROP_SHM:
1555	palkovsky	764	if (shm) {
		765	as_area_destroy(shm);
		766	shm = NULL;
1547	palkovsky	767	}
1555	palkovsky	768	shm_id = 0;
1547	palkovsky	769	break;
3707	decky	770
1555	palkovsky	771	case FB_SHM2PIXMAP:
		772	if (!shm) {
		773	retval = EINVAL;
		774	break;
		775	}
		776	retval = shm2pixmap(shm, shm_size);
		777	break;
1547	palkovsky	778	case FB_DRAW_PPM:
1555	palkovsky	779	if (!shm) {
1547	palkovsky	780	retval = EINVAL;
		781	break;
		782	}
		783	x = IPC_GET_ARG1(*call);
		784	y = IPC_GET_ARG2(*call);
3707	decky	785
		786	if ((x > vport->width) \|\| (y > vport->height)) {
1547	palkovsky	787	retval = EINVAL;
		788	break;
		789	}
		790
2025	jermar	791	ppm_draw(shm, shm_size, IPC_GET_ARG1(*call),
3707	decky	792	IPC_GET_ARG2(call), vport->width - x, vport->height - y, putpixel, (void ) vport);
1547	palkovsky	793	break;
		794	case FB_DRAW_TEXT_DATA:
		795	if (!interbuffer) {
		796	retval = EINVAL;
		797	break;
		798	}
3707	decky	799	if (intersize < vport->cols * vport->rows * sizeof(*interbuffer)) {
1547	palkovsky	800	retval = EINVAL;
		801	break;
		802	}
1673	palkovsky	803	draw_text_data(vport, interbuffer);
1547	palkovsky	804	break;
		805	default:
3707	decky	806	handled = false;
1547	palkovsky	807	}
		808
		809	if (handled)
2619	jermar	810	ipc_answer_0(callid, retval);
1547	palkovsky	811	return handled;
		812	}
		813
3707	decky	814
		815	static void copy_vp_to_pixmap(viewport_t vport, pixmap_t pmap)
1552	palkovsky	816	{
3707	decky	817	unsigned int width = vport->width;
		818	unsigned int height = vport->height;
		819
1711	palkovsky	820	if (width + vport->x > screen.xres)
		821	width = screen.xres - vport->x;
2301	decky	822	if (height + vport->y > screen.yres)
1711	palkovsky	823	height = screen.yres - vport->y;
2301	decky	824
3707	decky	825	unsigned int realwidth = pmap->width <= width ? pmap->width : width;
		826	unsigned int realheight = pmap->height <= height ? pmap->height : height;
2301	decky	827
3707	decky	828	unsigned int srcrowsize = vport->width * screen.pixelbytes;
		829	unsigned int realrowsize = realwidth * screen.pixelbytes;
		830
		831	unsigned int y;
2301	decky	832	for (y = 0; y < realheight; y++) {
3707	decky	833	unsigned int tmp = (vport->y + y) * screen.scanline + vport->x * screen.pixelbytes;
		834	memcpy(pmap->data + srcrowsize * y, screen.fb_addr + tmp, realrowsize);
1711	palkovsky	835	}
		836	}
		837
3707	decky	838
		839	/** Save viewport to pixmap
		840	*
		841	*/
		842	static int save_vp_to_pixmap(viewport_t *vport)
1711	palkovsky	843	{
		844	int pm;
		845	pixmap_t *pmap;
3707	decky	846
1552	palkovsky	847	pm = find_free_pixmap();
		848	if (pm == -1)
		849	return ELIMIT;
		850
		851	pmap = &pixmaps[pm];
		852	pmap->data = malloc(screen.pixelbytes * vport->width * vport->height);
		853	if (!pmap->data)
		854	return ENOMEM;
3707	decky	855
1552	palkovsky	856	pmap->width = vport->width;
		857	pmap->height = vport->height;
3707	decky	858
1711	palkovsky	859	copy_vp_to_pixmap(vport, pmap);
1552	palkovsky	860
		861	return pm;
		862	}
		863
3707	decky	864
1552	palkovsky	865	/** Draw pixmap on screen
		866	*
		867	* @param vp Viewport to draw on
		868	* @param pm Pixmap identifier
3707	decky	869	*
1552	palkovsky	870	*/
		871	static int draw_pixmap(int vp, int pm)
		872	{
		873	pixmap_t *pmap = &pixmaps[pm];
		874	viewport_t *vport = &viewports[vp];
3707	decky	875
		876	unsigned int width = vport->width;
		877	unsigned int height = vport->height;
		878
1711	palkovsky	879	if (width + vport->x > screen.xres)
		880	width = screen.xres - vport->x;
		881	if (height + vport->y > screen.yres)
		882	height = screen.yres - vport->y;
3707	decky	883
1552	palkovsky	884	if (!pmap->data)
		885	return EINVAL;
3707	decky	886
		887	unsigned int realwidth = pmap->width <= width ? pmap->width : width;
		888	unsigned int realheight = pmap->height <= height ? pmap->height : height;
		889
		890	unsigned int srcrowsize = vport->width * screen.pixelbytes;
		891	unsigned int realrowsize = realwidth * screen.pixelbytes;
		892
		893	unsigned int y;
2070	jermar	894	for (y = 0; y < realheight; y++) {
3707	decky	895	unsigned int tmp = (vport->y + y) * screen.scanline + vport->x * screen.pixelbytes;
		896	memcpy(screen.fb_addr + tmp, pmap->data + y * srcrowsize, realrowsize);
1552	palkovsky	897	}
3707	decky	898
		899	return EOK;
1552	palkovsky	900	}
		901
3707	decky	902
		903	/** Tick animation one step forward
		904	*
		905	*/
		906	static void anims_tick(void)
1646	palkovsky	907	{
3707	decky	908	unsigned int i;
1646	palkovsky	909	static int counts = 0;
		910
		911	/* Limit redrawing */
2025	jermar	912	counts = (counts + 1) % 8;
1646	palkovsky	913	if (counts)
		914	return;
		915
2070	jermar	916	for (i = 0; i < MAX_ANIMATIONS; i++) {
3707	decky	917	if ((!animations[i].animlen) \|\| (!animations[i].initialized) \|\|
		918	(!animations[i].enabled))
1646	palkovsky	919	continue;
3707	decky	920
		921	draw_pixmap(animations[i].vp, animations[i].pixmaps[animations[i].pos]);
		922	animations[i].pos = (animations[i].pos + 1) % animations[i].animlen;
1646	palkovsky	923	}
		924	}
		925
1711	palkovsky	926
3707	decky	927	static unsigned int pointer_x;
		928	static unsigned int pointer_y;
		929	static bool pointer_shown, pointer_enabled;
1711	palkovsky	930	static int pointer_vport = -1;
		931	static int pointer_pixmap = -1;
		932
3707	decky	933
		934	static void mouse_show(void)
1711	palkovsky	935	{
2070	jermar	936	int i, j;
1711	palkovsky	937	int visibility;
		938	int color;
		939	int bytepos;
3707	decky	940
		941	if ((pointer_shown) \|\| (!pointer_enabled))
1723	palkovsky	942	return;
3707	decky	943
3723	svoboda	944	/* Save image under the pointer. */
1711	palkovsky	945	if (pointer_vport == -1) {
3707	decky	946	pointer_vport = vport_create(pointer_x, pointer_y, pointer_width, pointer_height);
1711	palkovsky	947	if (pointer_vport < 0)
		948	return;
		949	} else {
		950	viewports[pointer_vport].x = pointer_x;
		951	viewports[pointer_vport].y = pointer_y;
		952	}
3707	decky	953
1711	palkovsky	954	if (pointer_pixmap == -1)
		955	pointer_pixmap = save_vp_to_pixmap(&viewports[pointer_vport]);
		956	else
3707	decky	957	copy_vp_to_pixmap(&viewports[pointer_vport], &pixmaps[pointer_pixmap]);
		958
3723	svoboda	959	/* Draw mouse pointer. */
2025	jermar	960	for (i = 0; i < pointer_height; i++)
		961	for (j = 0; j < pointer_width; j++) {
		962	bytepos = i * ((pointer_width - 1) / 8 + 1) + j / 8;
2070	jermar	963	visibility = pointer_mask_bits[bytepos] &
2619	jermar	964	(1 << (j % 8));
1711	palkovsky	965	if (visibility) {
2619	jermar	966	color = pointer_bits[bytepos] &
		967	(1 << (j % 8)) ? 0 : 0xffffff;
2025	jermar	968	if (pointer_x + j < screen.xres && pointer_y +
2619	jermar	969	i < screen.yres)
2025	jermar	970	putpixel(&viewports[0], pointer_x + j,
2619	jermar	971	pointer_y + i, color);
1711	palkovsky	972	}
		973	}
		974	pointer_shown = 1;
		975	}
		976
3707	decky	977
		978	static void mouse_hide(void)
1711	palkovsky	979	{
3723	svoboda	980	/* Restore image under the pointer. */
1711	palkovsky	981	if (pointer_shown) {
		982	draw_pixmap(pointer_vport, pointer_pixmap);
		983	pointer_shown = 0;
		984	}
		985	}
		986
3707	decky	987
		988	static void mouse_move(unsigned int x, unsigned int y)
1711	palkovsky	989	{
		990	mouse_hide();
		991	pointer_x = x;
		992	pointer_y = y;
		993	mouse_show();
		994	}
		995
3707	decky	996
		997	static int anim_handle(ipc_callid_t callid, ipc_call_t *call, int vp)
1646	palkovsky	998	{
3707	decky	999	bool handled = true;
		1000	int retval = EOK;
		1001	int i, nvp;
1646	palkovsky	1002	int newval;
3707	decky	1003
1646	palkovsky	1004	switch (IPC_GET_METHOD(*call)) {
		1005	case FB_ANIM_CREATE:
		1006	nvp = IPC_GET_ARG1(*call);
		1007	if (nvp == -1)
		1008	nvp = vp;
2025	jermar	1009	if (nvp >= MAX_VIEWPORTS \|\| nvp < 0 \|\|
		1010	!viewports[nvp].initialized) {
1646	palkovsky	1011	retval = EINVAL;
		1012	break;
		1013	}
2025	jermar	1014	for (i = 0; i < MAX_ANIMATIONS; i++) {
		1015	if (!animations[i].initialized)
1646	palkovsky	1016	break;
		1017	}
		1018	if (i == MAX_ANIMATIONS) {
		1019	retval = ELIMIT;
		1020	break;
		1021	}
		1022	animations[i].initialized = 1;
		1023	animations[i].animlen = 0;
		1024	animations[i].pos = 0;
		1025	animations[i].enabled = 0;
		1026	animations[i].vp = nvp;
		1027	retval = i;
		1028	break;
		1029	case FB_ANIM_DROP:
		1030	i = IPC_GET_ARG1(*call);
1720	palkovsky	1031	if (i >= MAX_ANIMATIONS \|\| i < 0) {
1646	palkovsky	1032	retval = EINVAL;
		1033	break;
		1034	}
		1035	animations[i].initialized = 0;
		1036	break;
		1037	case FB_ANIM_ADDPIXMAP:
		1038	i = IPC_GET_ARG1(*call);
2025	jermar	1039	if (i >= MAX_ANIMATIONS \|\| i < 0 \|\|
		1040	!animations[i].initialized) {
1646	palkovsky	1041	retval = EINVAL;
		1042	break;
		1043	}
		1044	if (animations[i].animlen == MAX_ANIM_LEN) {
		1045	retval = ELIMIT;
		1046	break;
		1047	}
		1048	newval = IPC_GET_ARG2(*call);
2025	jermar	1049	if (newval < 0 \|\| newval > MAX_PIXMAPS \|\|
		1050	!pixmaps[newval].data) {
1646	palkovsky	1051	retval = EINVAL;
		1052	break;
		1053	}
		1054	animations[i].pixmaps[animations[i].animlen++] = newval;
		1055	break;
		1056	case FB_ANIM_CHGVP:
		1057	i = IPC_GET_ARG1(*call);
		1058	if (i >= MAX_ANIMATIONS \|\| i < 0) {
		1059	retval = EINVAL;
		1060	break;
		1061	}
		1062	nvp = IPC_GET_ARG2(*call);
		1063	if (nvp == -1)
		1064	nvp = vp;
2025	jermar	1065	if (nvp >= MAX_VIEWPORTS \|\| nvp < 0 \|\|
		1066	!viewports[nvp].initialized) {
1646	palkovsky	1067	retval = EINVAL;
		1068	break;
		1069	}
		1070	animations[i].vp = nvp;
		1071	break;
		1072	case FB_ANIM_START:
		1073	case FB_ANIM_STOP:
		1074	i = IPC_GET_ARG1(*call);
		1075	if (i >= MAX_ANIMATIONS \|\| i < 0) {
		1076	retval = EINVAL;
		1077	break;
		1078	}
		1079	newval = (IPC_GET_METHOD(*call) == FB_ANIM_START);
		1080	if (newval ^ animations[i].enabled) {
		1081	animations[i].enabled = newval;
		1082	anims_enabled += newval ? 1 : -1;
		1083	}
		1084	break;
		1085	default:
		1086	handled = 0;
		1087	}
		1088	if (handled)
2619	jermar	1089	ipc_answer_0(callid, retval);
1646	palkovsky	1090	return handled;
		1091	}
		1092
3707	decky	1093
		1094	/** Handler for messages concerning pixmap handling
		1095	*
		1096	*/
		1097	static int pixmap_handle(ipc_callid_t callid, ipc_call_t *call, int vp)
1552	palkovsky	1098	{
3707	decky	1099	bool handled = true;
		1100	int retval = EOK;
		1101	int i, nvp;
		1102
1552	palkovsky	1103	switch (IPC_GET_METHOD(*call)) {
		1104	case FB_VP_DRAW_PIXMAP:
		1105	nvp = IPC_GET_ARG1(*call);
		1106	if (nvp == -1)
		1107	nvp = vp;
2025	jermar	1108	if (nvp < 0 \|\| nvp >= MAX_VIEWPORTS \|\|
		1109	!viewports[nvp].initialized) {
1552	palkovsky	1110	retval = EINVAL;
		1111	break;
		1112	}
		1113	i = IPC_GET_ARG2(*call);
		1114	retval = draw_pixmap(nvp, i);
		1115	break;
		1116	case FB_VP2PIXMAP:
		1117	nvp = IPC_GET_ARG1(*call);
		1118	if (nvp == -1)
		1119	nvp = vp;
2025	jermar	1120	if (nvp < 0 \|\| nvp >= MAX_VIEWPORTS \|\|
		1121	!viewports[nvp].initialized)
1552	palkovsky	1122	retval = EINVAL;
		1123	else
1711	palkovsky	1124	retval = save_vp_to_pixmap(&viewports[nvp]);
1552	palkovsky	1125	break;
		1126	case FB_DROP_PIXMAP:
		1127	i = IPC_GET_ARG1(*call);
		1128	if (i >= MAX_PIXMAPS) {
		1129	retval = EINVAL;
		1130	break;
		1131	}
		1132	if (pixmaps[i].data) {
		1133	free(pixmaps[i].data);
		1134	pixmaps[i].data = NULL;
		1135	}
		1136	break;
		1137	default:
		1138	handled = 0;
		1139	}
3707	decky	1140
1552	palkovsky	1141	if (handled)
2619	jermar	1142	ipc_answer_0(callid, retval);
1552	palkovsky	1143	return handled;
		1144
		1145	}
		1146
1498	palkovsky	1147	/** Function for handling connections to FB
		1148	*
		1149	*/
3707	decky	1150	static void fb_client_connection(ipc_callid_t iid, ipc_call_t *icall)
1363	vana	1151	{
3707	decky	1152	unsigned int vp = 0;
		1153	viewport_t *vport = &viewports[vp];
		1154
1485	palkovsky	1155	if (client_connected) {
2619	jermar	1156	ipc_answer_0(iid, ELIMIT);
1485	palkovsky	1157	return;
		1158	}
3707	decky	1159
		1160	/* Accept connection */
		1161	client_connected = true;
		1162	ipc_answer_0(iid, EOK);
		1163
		1164	while (true) {
		1165	ipc_callid_t callid;
		1166	ipc_call_t call;
		1167	int retval;
		1168	unsigned int i;
		1169	int scroll;
		1170	uint8_t glyph;
		1171	unsigned int row, col;
		1172
		1173	if ((vport->cursor_active) \|\| (anims_enabled))
2070	jermar	1174	callid = async_get_call_timeout(&call, 250000);
1640	palkovsky	1175	else
		1176	callid = async_get_call(&call);
3707	decky	1177
1713	palkovsky	1178	mouse_hide();
1500	palkovsky	1179	if (!callid) {
1673	palkovsky	1180	cursor_blink(vport);
1646	palkovsky	1181	anims_tick();
1723	palkovsky	1182	mouse_show();
1500	palkovsky	1183	continue;
		1184	}
3707	decky	1185
1547	palkovsky	1186	if (shm_handle(callid, &call, vp))
		1187	continue;
3707	decky	1188
1552	palkovsky	1189	if (pixmap_handle(callid, &call, vp))
		1190	continue;
3707	decky	1191
1646	palkovsky	1192	if (anim_handle(callid, &call, vp))
		1193	continue;
3707	decky	1194
		1195	switch (IPC_GET_METHOD(call)) {
1485	palkovsky	1196	case IPC_M_PHONE_HUNGUP:
3707	decky	1197	client_connected = false;
		1198
		1199	/* Cleanup other viewports */
2025	jermar	1200	for (i = 1; i < MAX_VIEWPORTS; i++)
3707	decky	1201	vport->initialized = false;
		1202
		1203	/* Exit thread */
		1204	return;
		1205
1485	palkovsky	1206	case FB_PUTCHAR:
3707	decky	1207	glyph = IPC_GET_ARG1(call);
1485	palkovsky	1208	row = IPC_GET_ARG2(call);
		1209	col = IPC_GET_ARG3(call);
3707	decky	1210
		1211	if ((col >= vport->cols) \|\| (row >= vport->rows)) {
1485	palkovsky	1212	retval = EINVAL;
		1213	break;
		1214	}
2619	jermar	1215	ipc_answer_0(callid, EOK);
3707	decky	1216
		1217	draw_char(vport, glyph, col, row);
		1218
		1219	/* Message already answered */
		1220	continue;
1485	palkovsky	1221	case FB_CLEAR:
3707	decky	1222	vport_clear(vport);
		1223	cursor_show(vport);
		1224	retval = EOK;
1485	palkovsky	1225	break;
3707	decky	1226	case FB_CURSOR_GOTO:
1486	palkovsky	1227	row = IPC_GET_ARG1(call);
		1228	col = IPC_GET_ARG2(call);
3707	decky	1229
		1230	if ((col >= vport->cols) \|\| (row >= vport->rows)) {
1486	palkovsky	1231	retval = EINVAL;
		1232	break;
		1233	}
3707	decky	1234	retval = EOK;
		1235
1673	palkovsky	1236	cursor_hide(vport);
1486	palkovsky	1237	vport->cur_col = col;
		1238	vport->cur_row = row;
3707	decky	1239	cursor_show(vport);
		1240	break;
1486	palkovsky	1241	case FB_CURSOR_VISIBILITY:
1673	palkovsky	1242	cursor_hide(vport);
1500	palkovsky	1243	vport->cursor_active = IPC_GET_ARG1(call);
3707	decky	1244	cursor_show(vport);
		1245	retval = EOK;
1486	palkovsky	1246	break;
1485	palkovsky	1247	case FB_GET_CSIZE:
2619	jermar	1248	ipc_answer_2(callid, EOK, vport->rows, vport->cols);
1485	palkovsky	1249	continue;
1486	palkovsky	1250	case FB_SCROLL:
3707	decky	1251	scroll = IPC_GET_ARG1(call);
		1252	if ((scroll > (int) vport->rows) \|\| (scroll < (-(int) vport->rows))) {
1486	palkovsky	1253	retval = EINVAL;
		1254	break;
		1255	}
1673	palkovsky	1256	cursor_hide(vport);
3707	decky	1257	vport_scroll(vport, scroll);
		1258	cursor_show(vport);
		1259	retval = EOK;
1486	palkovsky	1260	break;
		1261	case FB_VIEWPORT_SWITCH:
		1262	i = IPC_GET_ARG1(call);
3707	decky	1263	if (i >= MAX_VIEWPORTS) {
1486	palkovsky	1264	retval = EINVAL;
		1265	break;
		1266	}
3707	decky	1267	if (!viewports[i].initialized) {
1486	palkovsky	1268	retval = EADDRNOTAVAIL;
		1269	break;
		1270	}
1673	palkovsky	1271	cursor_hide(vport);
1486	palkovsky	1272	vp = i;
		1273	vport = &viewports[vp];
3707	decky	1274	cursor_show(vport);
		1275	retval = EOK;
1486	palkovsky	1276	break;
		1277	case FB_VIEWPORT_CREATE:
3707	decky	1278	retval = vport_create(IPC_GET_ARG1(call) >> 16,
2619	jermar	1279	IPC_GET_ARG1(call) & 0xffff,
		1280	IPC_GET_ARG2(call) >> 16,
		1281	IPC_GET_ARG2(call) & 0xffff);
1486	palkovsky	1282	break;
		1283	case FB_VIEWPORT_DELETE:
		1284	i = IPC_GET_ARG1(call);
3707	decky	1285	if (i >= MAX_VIEWPORTS) {
1486	palkovsky	1286	retval = EINVAL;
		1287	break;
		1288	}
3707	decky	1289	if (!viewports[i].initialized) {
1486	palkovsky	1290	retval = EADDRNOTAVAIL;
		1291	break;
		1292	}
3707	decky	1293	viewports[i].initialized = false;
		1294	if (viewports[i].glyphs)
		1295	free(viewports[i].glyphs);
		1296	if (viewports[i].bgpixel)
		1297	free(viewports[i].bgpixel);
		1298	if (viewports[i].backbuf)
		1299	free(viewports[i].backbuf);
		1300	retval = EOK;
1486	palkovsky	1301	break;
		1302	case FB_SET_STYLE:
1509	palkovsky	1303	vport->style.fg_color = IPC_GET_ARG1(call);
		1304	vport->style.bg_color = IPC_GET_ARG2(call);
3707	decky	1305	render_glyphs(vport);
		1306	retval = EOK;
1486	palkovsky	1307	break;
		1308	case FB_GET_RESOLUTION:
2619	jermar	1309	ipc_answer_2(callid, EOK, screen.xres, screen.yres);
1486	palkovsky	1310	continue;
1707	palkovsky	1311	case FB_POINTER_MOVE:
3707	decky	1312	pointer_enabled = true;
1711	palkovsky	1313	mouse_move(IPC_GET_ARG1(call), IPC_GET_ARG2(call));
3707	decky	1314	retval = EOK;
1707	palkovsky	1315	break;
1485	palkovsky	1316	default:
		1317	retval = ENOENT;
		1318	}
2619	jermar	1319	ipc_answer_0(callid, retval);
1363	vana	1320	}
1485	palkovsky	1321	}
1363	vana	1322
3707	decky	1323	/** Initialization of framebuffer
		1324	*
		1325	*/
		1326	int fb_init(void)
1485	palkovsky	1327	{
1490	palkovsky	1328	async_set_client_connection(fb_client_connection);
1485	palkovsky	1329
3707	decky	1330	void fb_ph_addr = (void ) sysinfo_value("fb.address.physical");
		1331	unsigned int fb_offset = sysinfo_value("fb.offset");
		1332	unsigned int fb_width = sysinfo_value("fb.width");
		1333	unsigned int fb_height = sysinfo_value("fb.height");
		1334	unsigned int fb_scanline = sysinfo_value("fb.scanline");
		1335	unsigned int fb_visual = sysinfo_value("fb.visual");
		1336
		1337	unsigned int fbsize = fb_scanline * fb_height;
		1338	void *fb_addr = as_get_mappable_page(fbsize);
		1339
		1340	physmem_map(fb_ph_addr + fb_offset, fb_addr,
		1341	ALIGN_UP(fbsize, PAGE_SIZE) >> PAGE_WIDTH, AS_AREA_READ \| AS_AREA_WRITE);
		1342
		1343	if (screen_init(fb_addr, fb_width, fb_height, fb_scanline, fb_visual))
1993	decky	1344	return 0;
		1345
		1346	return -1;
1363	vana	1347	}
1490	palkovsky	1348
3707	decky	1349	/**
1649	cejka	1350	* @}
		1351	*/

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(root)//trunk/uspace/srv/fb/fb.c – Rev 3726