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
4316	decky	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>
4457	decky	54	#include <io/color.h>
		55	#include <io/style.h>
1392	palkovsky	56	#include <async.h>
4528	svoboda	57	#include <fibril.h>
1993	decky	58	#include <bool.h>
1505	palkovsky	59
1404	palkovsky	60	#include "font-8x16.h"
1363	vana	61	#include "fb.h"
1505	palkovsky	62	#include "main.h"
		63	#include "../console/screenbuffer.h"
1547	palkovsky	64	#include "ppm.h"
1363	vana	65
1711	palkovsky	66	#include "pointer.xbm"
		67	#include "pointer_mask.xbm"
		68
3707	decky	69	#define DEFAULT_BGCOLOR 0xf0f0f0
		70	#define DEFAULT_FGCOLOR 0x000000
1363	vana	71
4316	decky	72	#define GLYPH_UNAVAIL '?'
4226	svoboda	73
3707	decky	74	#define MAX_ANIM_LEN 8
		75	#define MAX_ANIMATIONS 4
		76	#define MAX_PIXMAPS 256 /*< Maximum number of saved pixmaps /
		77	#define MAX_VIEWPORTS 128 /*< Viewport is a rectangular area on the screen /
1363	vana	78
3744	svoboda	79	/** Function to render a pixel from a RGB value. */
3707	decky	80	typedef void (rgb_conv_t)(void , uint32_t);
1363	vana	81
4316	decky	82	/** Function to render a bit mask. */
		83	typedef void (mask_conv_t)(void , bool);
		84
3744	svoboda	85	/** Function to draw a glyph. */
		86	typedef void (*dg_t)(unsigned int x, unsigned int y, bool cursor,
4226	svoboda	87	uint8_t *glyphs, uint32_t glyph, uint32_t fg_color, uint32_t bg_color);
3744	svoboda	88
1485	palkovsky	89	struct {
3707	decky	90	uint8_t *fb_addr;
		91
1875	jermar	92	unsigned int xres;
		93	unsigned int yres;
3707	decky	94
1875	jermar	95	unsigned int scanline;
3707	decky	96	unsigned int glyphscanline;
		97
1875	jermar	98	unsigned int pixelbytes;
3707	decky	99	unsigned int glyphbytes;
4316	decky	100
4233	svoboda	101	/** Pre-rendered mask for rendering glyphs. Specific for the visual. */
		102	uint8_t *glyphs;
3707	decky	103
		104	rgb_conv_t rgb_conv;
4316	decky	105	mask_conv_t mask_conv;
1485	palkovsky	106	} screen;
1363	vana	107
3767	svoboda	108	/** Backbuffer character cell. */
1485	palkovsky	109	typedef struct {
4211	svoboda	110	uint32_t glyph;
3767	svoboda	111	uint32_t fg_color;
		112	uint32_t bg_color;
		113	} bb_cell_t;
		114
		115	typedef struct {
3707	decky	116	bool initialized;
		117	unsigned int x;
		118	unsigned int y;
		119	unsigned int width;
		120	unsigned int height;
		121
1485	palkovsky	122	/* Text support in window */
3707	decky	123	unsigned int cols;
		124	unsigned int rows;
		125
3744	svoboda	126	/*
		127	* Style and glyphs for text printing
		128	*/
4316	decky	129
3767	svoboda	130	/** Current attributes. */
		131	attr_rgb_t attr;
4316	decky	132
3707	decky	133	uint8_t *bgpixel;
4316	decky	134
4233	svoboda	135	/**
		136	* Glyph drawing function for this viewport. Different viewports
		137	* might use different drawing functions depending on whether their
		138	* scanlines are aligned on a word boundary.
		139	*/
3744	svoboda	140	dg_t dglyph;
3707	decky	141
1485	palkovsky	142	/* Auto-cursor position */
3707	decky	143	bool cursor_active;
		144	unsigned int cur_col;
		145	unsigned int cur_row;
		146	bool cursor_shown;
		147
		148	/* Back buffer */
3767	svoboda	149	bb_cell_t *backbuf;
3707	decky	150	unsigned int bbsize;
1485	palkovsky	151	} viewport_t;
1363	vana	152
1646	palkovsky	153	typedef struct {
3707	decky	154	bool initialized;
		155	bool enabled;
1646	palkovsky	156	unsigned int vp;
3707	decky	157
1646	palkovsky	158	unsigned int pos;
		159	unsigned int animlen;
		160	unsigned int pixmaps[MAX_ANIM_LEN];
		161	} animation_t;
3707	decky	162
1646	palkovsky	163	static animation_t animations[MAX_ANIMATIONS];
3707	decky	164	static bool anims_enabled;
1646	palkovsky	165
1552	palkovsky	166	typedef struct {
		167	unsigned int width;
		168	unsigned int height;
1781	jermar	169	uint8_t *data;
1552	palkovsky	170	} pixmap_t;
3707	decky	171
1552	palkovsky	172	static pixmap_t pixmaps[MAX_PIXMAPS];
1485	palkovsky	173	static viewport_t viewports[128];
		174
3707	decky	175	static bool client_connected = false; /*< Allow only 1 connection /
1485	palkovsky	176
3767	svoboda	177	static uint32_t color_table[16] = {
4316	decky	178	[COLOR_BLACK] = 0x000000,
		179	[COLOR_BLUE] = 0x0000f0,
		180	[COLOR_GREEN] = 0x00f000,
		181	[COLOR_CYAN] = 0x00f0f0,
		182	[COLOR_RED] = 0xf00000,
		183	[COLOR_MAGENTA] = 0xf000f0,
		184	[COLOR_YELLOW] = 0xf0f000,
		185	[COLOR_WHITE] = 0xf0f0f0,
		186
		187	[8 + COLOR_BLACK] = 0x000000,
		188	[8 + COLOR_BLUE] = 0x0000ff,
		189	[8 + COLOR_GREEN] = 0x00ff00,
		190	[8 + COLOR_CYAN] = 0x00ffff,
		191	[8 + COLOR_RED] = 0xff0000,
		192	[8 + COLOR_MAGENTA] = 0xff00ff,
		193	[8 + COLOR_YELLOW] = 0xffff00,
		194	[8 + COLOR_WHITE] = 0xffffff,
3767	svoboda	195	};
		196
3792	svoboda	197	static int rgb_from_attr(attr_rgb_t rgb, const attrs_t a);
3767	svoboda	198	static int rgb_from_style(attr_rgb_t *rgb, int style);
		199	static int rgb_from_idx(attr_rgb_t *rgb, ipcarg_t fg_color,
		200	ipcarg_t bg_color, ipcarg_t flags);
		201
		202	static int fb_set_color(viewport_t *vport, ipcarg_t fg_color,
		203	ipcarg_t bg_color, ipcarg_t attr);
		204
3744	svoboda	205	static void draw_glyph_aligned(unsigned int x, unsigned int y, bool cursor,
4211	svoboda	206	uint8_t *glyphs, uint32_t glyph, uint32_t fg_color, uint32_t bg_color);
3744	svoboda	207	static void draw_glyph_fallback(unsigned int x, unsigned int y, bool cursor,
4211	svoboda	208	uint8_t *glyphs, uint32_t glyph, uint32_t fg_color, uint32_t bg_color);
3744	svoboda	209
3739	svoboda	210	static void draw_vp_glyph(viewport_t *vport, bool cursor, unsigned int col,
3723	svoboda	211	unsigned int row);
		212
		213
3707	decky	214	#define RED(x, bits) ((x >> (8 + 8 + 8 - bits)) & ((1 << bits) - 1))
		215	#define GREEN(x, bits) ((x >> (8 + 8 - bits)) & ((1 << bits) - 1))
		216	#define BLUE(x, bits) ((x >> (8 - bits)) & ((1 << bits) - 1))
1363	vana	217
3707	decky	218	#define COL2X(col) ((col) * FONT_WIDTH)
		219	#define ROW2Y(row) ((row) * FONT_SCANLINES)
1363	vana	220
3707	decky	221	#define X2COL(x) ((x) / FONT_WIDTH)
		222	#define Y2ROW(y) ((y) / FONT_SCANLINES)
1363	vana	223
3707	decky	224	#define FB_POS(x, y) ((y) * screen.scanline + (x) * screen.pixelbytes)
		225	#define BB_POS(vport, col, row) ((row) * vport->cols + (col))
		226	#define GLYPH_POS(glyph, y, cursor) (((glyph) + (cursor) * FONT_GLYPHS) * screen.glyphbytes + (y) * screen.glyphscanline)
1875	jermar	227
1363	vana	228
3707	decky	229	/** ARGB 8:8:8:8 conversion
		230	*
		231	*/
		232	static void rgb_0888(void *dst, uint32_t rgb)
1363	vana	233	{
4316	decky	234	((uint32_t ) dst) = rgb & 0x00ffffff;
1363	vana	235	}
		236
4316	decky	237	static void mask_0888(void *dst, bool mask)
		238	{
		239	((uint32_t ) dst) = (mask ? 0x00ffffff : 0);
		240	}
1994	decky	241
4316	decky	242
3707	decky	243	/** ABGR 8:8:8:8 conversion
		244	*
		245	*/
		246	static void bgr_0888(void *dst, uint32_t rgb)
1994	decky	247	{
3707	decky	248	((uint32_t ) dst)
		249	= (BLUE(rgb, 8) << 16) \| (GREEN(rgb, 8) << 8) \| RED(rgb, 8);
1994	decky	250	}
		251
3707	decky	252
3882	decky	253	/** RGB 8:8:8 conversion
3707	decky	254	*
		255	*/
		256	static void rgb_888(void *dst, uint32_t rgb)
1363	vana	257	{
3710	decky	258	((uint8_t *) dst)[0] = BLUE(rgb, 8);
		259	((uint8_t *) dst)[1] = GREEN(rgb, 8);
		260	((uint8_t *) dst)[2] = RED(rgb, 8);
1363	vana	261	}
		262
4316	decky	263	static void mask_888(void *dst, bool mask)
		264	{
		265	if (mask) {
		266	((uint8_t *) dst)[0] = 0xff;
		267	((uint8_t *) dst)[1] = 0xff;
		268	((uint8_t *) dst)[2] = 0xff;
		269	} else {
		270	((uint8_t *) dst)[0] = 0;
		271	((uint8_t *) dst)[1] = 0;
		272	((uint8_t *) dst)[2] = 0;
		273	}
		274	}
1363	vana	275
4316	decky	276
3882	decky	277	/** BGR 8:8:8 conversion
		278	*
		279	*/
		280	static void bgr_888(void *dst, uint32_t rgb)
		281	{
		282	((uint8_t *) dst)[0] = RED(rgb, 8);
		283	((uint8_t *) dst)[1] = GREEN(rgb, 8);
		284	((uint8_t *) dst)[2] = BLUE(rgb, 8);
		285	}
		286
		287
3707	decky	288	/** RGB 5:5:5 conversion
		289	*
		290	*/
		291	static void rgb_555(void *dst, uint32_t rgb)
1993	decky	292	{
3707	decky	293	((uint16_t ) dst)
		294	= (RED(rgb, 5) << 10) \| (GREEN(rgb, 5) << 5) \| BLUE(rgb, 5);
1993	decky	295	}
		296
4316	decky	297	static void mask_555(void *dst, bool mask)
		298	{
		299	((uint16_t ) dst) = (mask ? 0x7fff : 0);
		300	}
1993	decky	301
4316	decky	302
3707	decky	303	/** RGB 5:6:5 conversion
		304	*
		305	*/
		306	static void rgb_565(void *dst, uint32_t rgb)
1363	vana	307	{
3707	decky	308	((uint16_t ) dst)
		309	= (RED(rgb, 5) << 11) \| (GREEN(rgb, 6) << 5) \| BLUE(rgb, 5);
1363	vana	310	}
		311
4316	decky	312	static void mask_565(void *dst, bool mask)
		313	{
		314	((uint16_t ) dst) = (mask ? 0xffff : 0);
		315	}
1363	vana	316
4316	decky	317
3707	decky	318	/** RGB 3:2:3
		319	*
		320	*/
		321	static void rgb_323(void *dst, uint32_t rgb)
1363	vana	322	{
3707	decky	323	((uint8_t ) dst)
		324	= ~((RED(rgb, 3) << 5) \| (GREEN(rgb, 2) << 3) \| BLUE(rgb, 3));
1363	vana	325	}
		326
4316	decky	327	static void mask_323(void *dst, bool mask)
		328	{
		329	((uint8_t ) dst) = (mask ? 0xff : 0);
		330	}
		331
3725	svoboda	332	/** Draw a filled rectangle.
		333	*
		334	* @note Need real implementation that does not access VRAM twice.
4316	decky	335	*
3725	svoboda	336	*/
3723	svoboda	337	static void draw_filled_rect(unsigned int x0, unsigned int y0, unsigned int x1,
		338	unsigned int y1, uint32_t color)
		339	{
4316	decky	340	unsigned int x;
		341	unsigned int y;
3725	svoboda	342	unsigned int copy_bytes;
4316	decky	343
		344	uint8_t *sp;
		345	uint8_t *dp;
3723	svoboda	346	uint8_t cbuf[4];
4316	decky	347
		348	if ((y0 >= y1) \|\| (x0 >= x1))
		349	return;
		350
3723	svoboda	351	screen.rgb_conv(cbuf, color);
4316	decky	352
3725	svoboda	353	sp = &screen.fb_addr[FB_POS(x0, y0)];
		354	dp = sp;
4316	decky	355
3725	svoboda	356	/* Draw the first line. */
		357	for (x = x0; x < x1; x++) {
		358	memcpy(dp, cbuf, screen.pixelbytes);
		359	dp += screen.pixelbytes;
3723	svoboda	360	}
4316	decky	361
3725	svoboda	362	dp = sp + screen.scanline;
		363	copy_bytes = (x1 - x0) * screen.pixelbytes;
4316	decky	364
3725	svoboda	365	/* Draw the remaining lines by copying. */
		366	for (y = y0 + 1; y < y1; y++) {
		367	memcpy(dp, sp, copy_bytes);
		368	dp += screen.scanline;
		369	}
3723	svoboda	370	}
		371
		372	/** Redraw viewport.
1498	palkovsky	373	*
3707	decky	374	* @param vport Viewport to redraw
		375	*
1498	palkovsky	376	*/
3707	decky	377	static void vport_redraw(viewport_t *vport)
1485	palkovsky	378	{
4457	decky	379	unsigned int col;
4316	decky	380	unsigned int row;
		381
3707	decky	382	for (row = 0; row < vport->rows; row++) {
3723	svoboda	383	for (col = 0; col < vport->cols; col++) {
3739	svoboda	384	draw_vp_glyph(vport, false, col, row);
3707	decky	385	}
1672	palkovsky	386	}
4316	decky	387
3707	decky	388	if (COL2X(vport->cols) < vport->width) {
3723	svoboda	389	draw_filled_rect(
		390	vport->x + COL2X(vport->cols), vport->y,
		391	vport->x + vport->width, vport->y + vport->height,
3767	svoboda	392	vport->attr.bg_color);
1672	palkovsky	393	}
4316	decky	394
3707	decky	395	if (ROW2Y(vport->rows) < vport->height) {
3723	svoboda	396	draw_filled_rect(
		397	vport->x, vport->y + ROW2Y(vport->rows),
		398	vport->x + vport->width, vport->y + vport->height,
3767	svoboda	399	vport->attr.bg_color);
1672	palkovsky	400	}
1559	palkovsky	401	}
		402
3767	svoboda	403	static void backbuf_clear(bb_cell_t *backbuf, size_t len, uint32_t fg_color,
		404	uint32_t bg_color)
		405	{
4316	decky	406	size_t i;
		407
3767	svoboda	408	for (i = 0; i < len; i++) {
		409	backbuf[i].glyph = 0;
		410	backbuf[i].fg_color = fg_color;
		411	backbuf[i].bg_color = bg_color;
		412	}
		413	}
		414
3724	svoboda	415	/** Clear viewport.
3707	decky	416	*
		417	* @param vport Viewport to clear
		418	*
		419	*/
		420	static void vport_clear(viewport_t *vport)
1363	vana	421	{
3767	svoboda	422	backbuf_clear(vport->backbuf, vport->cols * vport->rows,
		423	vport->attr.fg_color, vport->attr.bg_color);
3707	decky	424	vport_redraw(vport);
1363	vana	425	}
		426
3724	svoboda	427	/** Scroll viewport by the specified number of lines.
1485	palkovsky	428	*
1709	jermar	429	* @param vport Viewport to scroll
3707	decky	430	* @param lines Number of lines to scroll
		431	*
1485	palkovsky	432	*/
3707	decky	433	static void vport_scroll(viewport_t *vport, int lines)
1363	vana	434	{
4457	decky	435	unsigned int col;
4316	decky	436	unsigned int row;
		437	unsigned int x;
		438	unsigned int y;
4232	svoboda	439	uint32_t glyph;
3767	svoboda	440	uint32_t fg_color;
		441	uint32_t bg_color;
4316	decky	442	bb_cell_t *bbp;
		443	bb_cell_t *xbp;
		444
3724	svoboda	445	/*
3739	svoboda	446	* Redraw.
		447	*/
4316	decky	448
3739	svoboda	449	y = vport->y;
		450	for (row = 0; row < vport->rows; row++) {
		451	x = vport->x;
		452	for (col = 0; col < vport->cols; col++) {
		453	if ((row + lines >= 0) && (row + lines < vport->rows)) {
3767	svoboda	454	xbp = &vport->backbuf[BB_POS(vport, col, row + lines)];
		455	bbp = &vport->backbuf[BB_POS(vport, col, row)];
4316	decky	456
3767	svoboda	457	glyph = xbp->glyph;
		458	fg_color = xbp->fg_color;
		459	bg_color = xbp->bg_color;
4316	decky	460
		461	if ((bbp->glyph == glyph)
		462	&& (bbp->fg_color == xbp->fg_color)
		463	&& (bbp->bg_color == xbp->bg_color)) {
3739	svoboda	464	x += FONT_WIDTH;
		465	continue;
		466	}
		467	} else {
		468	glyph = 0;
3767	svoboda	469	fg_color = vport->attr.fg_color;
		470	bg_color = vport->attr.bg_color;
3739	svoboda	471	}
4316	decky	472
4233	svoboda	473	(*vport->dglyph)(x, y, false, screen.glyphs, glyph,
3767	svoboda	474	fg_color, bg_color);
3739	svoboda	475	x += FONT_WIDTH;
		476	}
		477	y += FONT_SCANLINES;
		478	}
4316	decky	479
3739	svoboda	480	/*
3724	svoboda	481	* Scroll backbuffer.
		482	*/
4316	decky	483
1672	palkovsky	484	if (lines > 0) {
3739	svoboda	485	memmove(vport->backbuf, vport->backbuf + vport->cols * lines,
3767	svoboda	486	vport->cols * (vport->rows - lines) * sizeof(bb_cell_t));
		487	backbuf_clear(&vport->backbuf[BB_POS(vport, 0, vport->rows - lines)],
		488	vport->cols * lines, vport->attr.fg_color, vport->attr.bg_color);
3707	decky	489	} else {
3739	svoboda	490	memmove(vport->backbuf - vport->cols * lines, vport->backbuf,
3767	svoboda	491	vport->cols * (vport->rows + lines) * sizeof(bb_cell_t));
		492	backbuf_clear(vport->backbuf, - vport->cols * lines,
		493	vport->attr.fg_color, vport->attr.bg_color);
1672	palkovsky	494	}
		495	}
		496
3707	decky	497	/** Render glyphs
1558	palkovsky	498	*
3707	decky	499	* Convert glyphs from device independent font
		500	* description to current visual representation.
4316	decky	501	*
1558	palkovsky	502	*/
4233	svoboda	503	static void render_glyphs(void)
1363	vana	504	{
3707	decky	505	unsigned int glyph;
4316	decky	506
3707	decky	507	for (glyph = 0; glyph < FONT_GLYPHS; glyph++) {
		508	unsigned int y;
4316	decky	509
3707	decky	510	for (y = 0; y < FONT_SCANLINES; y++) {
		511	unsigned int x;
4316	decky	512
3707	decky	513	for (x = 0; x < FONT_WIDTH; x++) {
4316	decky	514	screen.mask_conv(&screen.glyphs[GLYPH_POS(glyph, y, false) + x * screen.pixelbytes],
4322	decky	515	(fb_font[glyph][y] & (1 << (7 - x))) ? true : false);
4316	decky	516
		517	screen.mask_conv(&screen.glyphs[GLYPH_POS(glyph, y, true) + x * screen.pixelbytes],
4322	decky	518	(fb_font[glyph][y] & (1 << (7 - x))) ? false : true);
3707	decky	519	}
1509	palkovsky	520	}
		521	}
1363	vana	522	}
		523
1485	palkovsky	524	/** Create new viewport
1363	vana	525	*
3707	decky	526	* @param x Origin of the viewport (x).
		527	* @param y Origin of the viewport (y).
		528	* @param width Width of the viewport.
		529	* @param height Height of the viewport.
		530	*
		531	* @return New viewport number.
		532	*
1363	vana	533	*/
3707	decky	534	static int vport_create(unsigned int x, unsigned int y,
		535	unsigned int width, unsigned int height)
1363	vana	536	{
3707	decky	537	unsigned int i;
		538
2070	jermar	539	for (i = 0; i < MAX_VIEWPORTS; i++) {
1485	palkovsky	540	if (!viewports[i].initialized)
1363	vana	541	break;
		542	}
4316	decky	543
1485	palkovsky	544	if (i == MAX_VIEWPORTS)
		545	return ELIMIT;
3707	decky	546
		547	unsigned int cols = width / FONT_WIDTH;
		548	unsigned int rows = height / FONT_SCANLINES;
3767	svoboda	549	unsigned int bbsize = cols * rows * sizeof(bb_cell_t);
3744	svoboda	550	unsigned int word_size = sizeof(unsigned long);
3707	decky	551
3767	svoboda	552	bb_cell_t backbuf = (bb_cell_t ) malloc(bbsize);
3707	decky	553	if (!backbuf)
		554	return ENOMEM;
		555
		556	uint8_t bgpixel = (uint8_t ) malloc(screen.pixelbytes);
		557	if (!bgpixel) {
		558	free(backbuf);
		559	return ENOMEM;
		560	}
4316	decky	561
3767	svoboda	562	backbuf_clear(backbuf, cols * rows, DEFAULT_FGCOLOR, DEFAULT_BGCOLOR);
3707	decky	563	memset(bgpixel, 0, screen.pixelbytes);
		564
1485	palkovsky	565	viewports[i].x = x;
		566	viewports[i].y = y;
		567	viewports[i].width = width;
		568	viewports[i].height = height;
1363	vana	569
3707	decky	570	viewports[i].cols = cols;
		571	viewports[i].rows = rows;
		572
3767	svoboda	573	viewports[i].attr.bg_color = DEFAULT_BGCOLOR;
		574	viewports[i].attr.fg_color = DEFAULT_FGCOLOR;
1363	vana	575
3707	decky	576	viewports[i].bgpixel = bgpixel;
4316	decky	577
3744	svoboda	578	/*
4316	decky	579	* Conditions necessary to select aligned version:
		580	* - word size is divisible by pixelbytes
		581	* - cell scanline size is divisible by word size
		582	* - cell scanlines are word-aligned
3744	svoboda	583	*
		584	*/
4316	decky	585	if (((word_size % screen.pixelbytes) == 0)
		586	&& ((FONT_WIDTH * screen.pixelbytes) % word_size == 0)
		587	&& ((x * screen.pixelbytes) % word_size == 0)
		588	&& (screen.scanline % word_size == 0)) {
3744	svoboda	589	viewports[i].dglyph = draw_glyph_aligned;
		590	} else {
		591	viewports[i].dglyph = draw_glyph_fallback;
		592	}
4316	decky	593
1489	palkovsky	594	viewports[i].cur_col = 0;
		595	viewports[i].cur_row = 0;
3707	decky	596	viewports[i].cursor_active = false;
		597	viewports[i].cursor_shown = false;
		598
		599	viewports[i].bbsize = bbsize;
		600	viewports[i].backbuf = backbuf;
		601
		602	viewports[i].initialized = true;
		603
4233	svoboda	604	screen.rgb_conv(viewports[i].bgpixel, viewports[i].attr.bg_color);
3707	decky	605
1485	palkovsky	606	return i;
1363	vana	607	}
		608
3707	decky	609
1363	vana	610	/** Initialize framebuffer as a chardev output device
		611	*
3707	decky	612	* @param addr Address of the framebuffer
		613	* @param xres Screen width in pixels
		614	* @param yres Screen height in pixels
		615	* @param visual Bits per pixel (8, 16, 24, 32)
		616	* @param scan Bytes per one scanline
1363	vana	617	*
		618	*/
3707	decky	619	static bool screen_init(void *addr, unsigned int xres, unsigned int yres,
		620	unsigned int scan, unsigned int visual)
1363	vana	621	{
4316	decky	622
		623
1993	decky	624	switch (visual) {
		625	case VISUAL_INDIRECT_8:
3707	decky	626	screen.rgb_conv = rgb_323;
4316	decky	627	screen.mask_conv = mask_323;
1886	jermar	628	screen.pixelbytes = 1;
		629	break;
1993	decky	630	case VISUAL_RGB_5_5_5:
3707	decky	631	screen.rgb_conv = rgb_555;
4316	decky	632	screen.mask_conv = mask_555;
1886	jermar	633	screen.pixelbytes = 2;
		634	break;
1993	decky	635	case VISUAL_RGB_5_6_5:
3707	decky	636	screen.rgb_conv = rgb_565;
4316	decky	637	screen.mask_conv = mask_565;
1993	decky	638	screen.pixelbytes = 2;
1886	jermar	639	break;
1993	decky	640	case VISUAL_RGB_8_8_8:
3707	decky	641	screen.rgb_conv = rgb_888;
4316	decky	642	screen.mask_conv = mask_888;
1993	decky	643	screen.pixelbytes = 3;
		644	break;
3882	decky	645	case VISUAL_BGR_8_8_8:
		646	screen.rgb_conv = bgr_888;
4316	decky	647	screen.mask_conv = mask_888;
3882	decky	648	screen.pixelbytes = 3;
		649	break;
1993	decky	650	case VISUAL_RGB_8_8_8_0:
3707	decky	651	screen.rgb_conv = rgb_888;
4316	decky	652	screen.mask_conv = mask_888;
1886	jermar	653	screen.pixelbytes = 4;
		654	break;
1993	decky	655	case VISUAL_RGB_0_8_8_8:
3707	decky	656	screen.rgb_conv = rgb_0888;
4316	decky	657	screen.mask_conv = mask_0888;
1993	decky	658	screen.pixelbytes = 4;
		659	break;
1994	decky	660	case VISUAL_BGR_0_8_8_8:
3707	decky	661	screen.rgb_conv = bgr_0888;
4316	decky	662	screen.mask_conv = mask_0888;
1994	decky	663	screen.pixelbytes = 4;
		664	break;
1993	decky	665	default:
		666	return false;
1363	vana	667	}
4316	decky	668
3707	decky	669	screen.fb_addr = (unsigned char *) addr;
1485	palkovsky	670	screen.xres = xres;
		671	screen.yres = yres;
		672	screen.scanline = scan;
1363	vana	673
3707	decky	674	screen.glyphscanline = FONT_WIDTH * screen.pixelbytes;
		675	screen.glyphbytes = screen.glyphscanline * FONT_SCANLINES;
4316	decky	676
		677	size_t glyphsize = 2 * FONT_GLYPHS * screen.glyphbytes;
		678	uint8_t glyphs = (uint8_t ) malloc(glyphsize);
4233	svoboda	679	if (!glyphs)
		680	return false;
3707	decky	681
4233	svoboda	682	memset(glyphs, 0, glyphsize);
		683	screen.glyphs = glyphs;
4316	decky	684
4233	svoboda	685	render_glyphs();
		686
1485	palkovsky	687	/* Create first viewport */
3707	decky	688	vport_create(0, 0, xres, yres);
1993	decky	689
		690	return true;
1485	palkovsky	691	}
1363	vana	692
3707	decky	693
3744	svoboda	694	/** Draw a glyph, takes advantage of alignment.
3707	decky	695	*
3744	svoboda	696	* This version can only be used if the following conditions are met:
3739	svoboda	697	*
3744	svoboda	698	* - word size is divisible by pixelbytes
		699	* - cell scanline size is divisible by word size
		700	* - cell scanlines are word-aligned
		701	*
		702	* It makes use of the pre-rendered mask to process (possibly) several
		703	* pixels at once (word size / pixelbytes pixels at a time are processed)
		704	* making it very fast. Most notably this version is not applicable at 24 bits
		705	* per pixel.
		706	*
4316	decky	707	* @param x x coordinate of top-left corner on screen.
		708	* @param y y coordinate of top-left corner on screen.
		709	* @param cursor Draw glyph with cursor
		710	* @param glyphs Pointer to font bitmap.
		711	* @param glyph Code of the glyph to draw.
		712	* @param fg_color Foreground color.
		713	* @param bg_color Backgroudn color.
		714	*
3739	svoboda	715	*/
3744	svoboda	716	static void draw_glyph_aligned(unsigned int x, unsigned int y, bool cursor,
4211	svoboda	717	uint8_t *glyphs, uint32_t glyph, uint32_t fg_color, uint32_t bg_color)
3739	svoboda	718	{
4316	decky	719	unsigned int i;
		720	unsigned int yd;
		721	unsigned long fg_buf;
		722	unsigned long bg_buf;
3744	svoboda	723	unsigned long mask;
4316	decky	724
3744	svoboda	725	/*
		726	* Prepare a pair of words, one filled with foreground-color
		727	* pattern and the other filled with background-color pattern.
		728	*/
		729	for (i = 0; i < sizeof(unsigned long) / screen.pixelbytes; i++) {
4316	decky	730	screen.rgb_conv(&((uint8_t ) &fg_buf)[i screen.pixelbytes],
3744	svoboda	731	fg_color);
4316	decky	732	screen.rgb_conv(&((uint8_t ) &bg_buf)[i screen.pixelbytes],
3744	svoboda	733	bg_color);
		734	}
4316	decky	735
3744	svoboda	736	/* Pointer to the current position in the mask. */
4316	decky	737	unsigned long maskp = (unsigned long ) &glyphs[GLYPH_POS(glyph, 0, cursor)];
		738
3744	svoboda	739	/* Pointer to the current position on the screen. */
4316	decky	740	unsigned long dp = (unsigned long ) &screen.fb_addr[FB_POS(x, y)];
		741
3744	svoboda	742	/* Width of the character cell in words. */
4316	decky	743	unsigned int ww = FONT_WIDTH * screen.pixelbytes / sizeof(unsigned long);
		744
3744	svoboda	745	/* Offset to add when moving to another screen scanline. */
4316	decky	746	unsigned int d_add = screen.scanline - FONT_WIDTH * screen.pixelbytes;
		747
3744	svoboda	748	for (yd = 0; yd < FONT_SCANLINES; yd++) {
		749	/*
		750	* Now process the cell scanline, combining foreground
		751	* and background color patters using the pre-rendered mask.
		752	*/
		753	for (i = 0; i < ww; i++) {
		754	mask = *maskp++;
		755	*dp++ = (fg_buf & mask) \| (bg_buf & ~mask);
		756	}
4316	decky	757
3744	svoboda	758	/* Move to the beginning of the next scanline of the cell. */
		759	dp = (unsigned long ) ((uint8_t ) dp + d_add);
		760	}
3739	svoboda	761	}
		762
3744	svoboda	763	/** Draw a glyph, fallback version.
		764	*
		765	* This version does not make use of the pre-rendered mask, it uses
		766	* the font bitmap directly. It works always, but it is slower.
		767	*
4316	decky	768	* @param x x coordinate of top-left corner on screen.
		769	* @param y y coordinate of top-left corner on screen.
		770	* @param cursor Draw glyph with cursor
		771	* @param glyphs Pointer to font bitmap.
		772	* @param glyph Code of the glyph to draw.
		773	* @param fg_color Foreground color.
		774	* @param bg_color Backgroudn color.
		775	*
3744	svoboda	776	*/
		777	void draw_glyph_fallback(unsigned int x, unsigned int y, bool cursor,
4211	svoboda	778	uint8_t *glyphs, uint32_t glyph, uint32_t fg_color, uint32_t bg_color)
3744	svoboda	779	{
4316	decky	780	unsigned int i;
		781	unsigned int j;
		782	unsigned int yd;
		783	uint8_t fg_buf[4];
		784	uint8_t bg_buf[4];
		785	uint8_t *sp;
3744	svoboda	786	uint8_t b;
4316	decky	787
3744	svoboda	788	/* Pre-render 1x the foreground and background color pixels. */
		789	if (cursor) {
		790	screen.rgb_conv(fg_buf, bg_color);
		791	screen.rgb_conv(bg_buf, fg_color);
		792	} else {
		793	screen.rgb_conv(fg_buf, fg_color);
		794	screen.rgb_conv(bg_buf, bg_color);
		795	}
4316	decky	796
3744	svoboda	797	/* Pointer to the current position on the screen. */
4316	decky	798	uint8_t dp = (uint8_t ) &screen.fb_addr[FB_POS(x, y)];
		799
3744	svoboda	800	/* Offset to add when moving to another screen scanline. */
4316	decky	801	unsigned int d_add = screen.scanline - FONT_WIDTH * screen.pixelbytes;
		802
3744	svoboda	803	for (yd = 0; yd < FONT_SCANLINES; yd++) {
		804	/* Byte containing bits of the glyph scanline. */
4232	svoboda	805	b = fb_font[glyph][yd];
4316	decky	806
3744	svoboda	807	for (i = 0; i < FONT_WIDTH; i++) {
		808	/* Choose color based on the current bit. */
		809	sp = (b & 0x80) ? fg_buf : bg_buf;
4316	decky	810
3744	svoboda	811	/* Copy the pixel. */
		812	for (j = 0; j < screen.pixelbytes; j++) {
		813	dp++ = sp++;
		814	}
4316	decky	815
3744	svoboda	816	/* Move to the next bit. */
		817	b = b << 1;
		818	}
		819
		820	/* Move to the beginning of the next scanline of the cell. */
		821	dp += d_add;
		822	}
		823	}
		824
4316	decky	825	/** Draw glyph at specified position in viewport.
3739	svoboda	826	*
3707	decky	827	* @param vport Viewport identification
		828	* @param cursor Draw glyph with cursor
		829	* @param col Screen position relative to viewport
		830	* @param row Screen position relative to viewport
		831	*
		832	*/
3739	svoboda	833	static void draw_vp_glyph(viewport_t *vport, bool cursor, unsigned int col,
		834	unsigned int row)
1500	palkovsky	835	{
3707	decky	836	unsigned int x = vport->x + COL2X(col);
		837	unsigned int y = vport->y + ROW2Y(row);
		838
4316	decky	839	uint32_t glyph = vport->backbuf[BB_POS(vport, col, row)].glyph;
		840	uint32_t fg_color = vport->backbuf[BB_POS(vport, col, row)].fg_color;
		841	uint32_t bg_color = vport->backbuf[BB_POS(vport, col, row)].bg_color;
		842
4233	svoboda	843	(*vport->dglyph)(x, y, cursor, screen.glyphs, glyph,
3767	svoboda	844	fg_color, bg_color);
3707	decky	845	}
		846
		847	/** Hide cursor if it is shown
		848	*
		849	*/
		850	static void cursor_hide(viewport_t *vport)
		851	{
		852	if ((vport->cursor_active) && (vport->cursor_shown)) {
3739	svoboda	853	draw_vp_glyph(vport, false, vport->cur_col, vport->cur_row);
3707	decky	854	vport->cursor_shown = false;
1500	palkovsky	855	}
		856	}
		857
3707	decky	858
		859	/** Show cursor if cursor showing is enabled
		860	*
		861	*/
		862	static void cursor_show(viewport_t *vport)
1500	palkovsky	863	{
		864	/* Do not check for cursor_shown */
		865	if (vport->cursor_active) {
3739	svoboda	866	draw_vp_glyph(vport, true, vport->cur_col, vport->cur_row);
3707	decky	867	vport->cursor_shown = true;
1500	palkovsky	868	}
		869	}
		870
3707	decky	871
		872	/** Invert cursor, if it is enabled
		873	*
		874	*/
		875	static void cursor_blink(viewport_t *vport)
1500	palkovsky	876	{
		877	if (vport->cursor_shown)
1673	palkovsky	878	cursor_hide(vport);
1500	palkovsky	879	else
3707	decky	880	cursor_show(vport);
1500	palkovsky	881	}
		882
3707	decky	883
		884	/** Draw character at given position relative to viewport
		885	*
		886	* @param vport Viewport identification
		887	* @param c Character to draw
		888	* @param col Screen position relative to viewport
		889	* @param row Screen position relative to viewport
		890	*
1498	palkovsky	891	*/
4211	svoboda	892	static void draw_char(viewport_t *vport, wchar_t c, unsigned int col, unsigned int row)
1486	palkovsky	893	{
3767	svoboda	894	bb_cell_t *bbp;
4316	decky	895
3707	decky	896	/* Do not hide cursor if we are going to overwrite it */
		897	if ((vport->cursor_active) && (vport->cursor_shown) &&
		898	((vport->cur_col != col) \|\| (vport->cur_row != row)))
		899	cursor_hide(vport);
4316	decky	900
3767	svoboda	901	bbp = &vport->backbuf[BB_POS(vport, col, row)];
4232	svoboda	902	bbp->glyph = fb_font_glyph(c);
3767	svoboda	903	bbp->fg_color = vport->attr.fg_color;
		904	bbp->bg_color = vport->attr.bg_color;
4316	decky	905
3739	svoboda	906	draw_vp_glyph(vport, false, col, row);
3707	decky	907
1489	palkovsky	908	vport->cur_col = col;
		909	vport->cur_row = row;
3707	decky	910
1489	palkovsky	911	vport->cur_col++;
2025	jermar	912	if (vport->cur_col >= vport->cols) {
1489	palkovsky	913	vport->cur_col = 0;
		914	vport->cur_row++;
		915	if (vport->cur_row >= vport->rows)
		916	vport->cur_row--;
1486	palkovsky	917	}
3707	decky	918
		919	cursor_show(vport);
1486	palkovsky	920	}
		921
4167	svoboda	922	/** Draw text data to viewport.
1552	palkovsky	923	*
1709	jermar	924	* @param vport Viewport id
4167	svoboda	925	* @param data Text data.
4316	decky	926	* @param x Leftmost column of the area.
		927	* @param y Topmost row of the area.
		928	* @param w Number of rows.
		929	* @param h Number of columns.
		930	*
1552	palkovsky	931	*/
4167	svoboda	932	static void draw_text_data(viewport_t vport, keyfield_t data, unsigned int x,
		933	unsigned int y, unsigned int w, unsigned int h)
1505	palkovsky	934	{
4316	decky	935	unsigned int i;
		936	unsigned int j;
3767	svoboda	937	bb_cell_t *bbp;
		938	attrs_t *a;
		939	attr_rgb_t rgb;
4316	decky	940
4167	svoboda	941	for (j = 0; j < h; j++) {
		942	for (i = 0; i < w; i++) {
		943	unsigned int col = x + i;
		944	unsigned int row = y + j;
4316	decky	945
4167	svoboda	946	bbp = &vport->backbuf[BB_POS(vport, col, row)];
4316	decky	947
4167	svoboda	948	a = &data[j * w + i].attrs;
		949	rgb_from_attr(&rgb, a);
4316	decky	950
4232	svoboda	951	bbp->glyph = fb_font_glyph(data[j * w + i].character);
4167	svoboda	952	bbp->fg_color = rgb.fg_color;
		953	bbp->bg_color = rgb.bg_color;
4316	decky	954
4167	svoboda	955	draw_vp_glyph(vport, false, col, row);
		956	}
1505	palkovsky	957	}
3707	decky	958	cursor_show(vport);
1505	palkovsky	959	}
		960
3707	decky	961
		962	static void putpixel_pixmap(void *data, unsigned int x, unsigned int y, uint32_t color)
1555	palkovsky	963	{
3707	decky	964	int pm = ((int ) data);
		965	pixmap_t *pmap = &pixmaps[pm];
		966	unsigned int pos = (y * pmap->width + x) * screen.pixelbytes;
1555	palkovsky	967
3707	decky	968	screen.rgb_conv(&pmap->data[pos], color);
		969	}
		970
		971
		972	static void putpixel(void *data, unsigned int x, unsigned int y, uint32_t color)
		973	{
		974	viewport_t vport = (viewport_t ) data;
		975	unsigned int dx = vport->x + x;
		976	unsigned int dy = vport->y + y;
		977
		978	screen.rgb_conv(&screen.fb_addr[FB_POS(dx, dy)], color);
		979	}
		980
		981
		982	/** Return first free pixmap
		983	*
		984	*/
		985	static int find_free_pixmap(void)
		986	{
		987	unsigned int i;
		988
		989	for (i = 0; i < MAX_PIXMAPS; i++)
1555	palkovsky	990	if (!pixmaps[i].data)
		991	return i;
3707	decky	992
1555	palkovsky	993	return -1;
		994	}
		995
		996
3707	decky	997	/** Create a new pixmap and return appropriate ID
		998	*
		999	*/
		1000	static int shm2pixmap(unsigned char *shm, size_t size)
1555	palkovsky	1001	{
		1002	int pm;
		1003	pixmap_t *pmap;
3707	decky	1004
1555	palkovsky	1005	pm = find_free_pixmap();
		1006	if (pm == -1)
		1007	return ELIMIT;
3707	decky	1008
1555	palkovsky	1009	pmap = &pixmaps[pm];
		1010
		1011	if (ppm_get_data(shm, size, &pmap->width, &pmap->height))
		1012	return EINVAL;
		1013
		1014	pmap->data = malloc(pmap->width * pmap->height * screen.pixelbytes);
		1015	if (!pmap->data)
		1016	return ENOMEM;
3707	decky	1017
		1018	ppm_draw(shm, size, 0, 0, pmap->width, pmap->height, putpixel_pixmap, (void *) &pm);
		1019
1555	palkovsky	1020	return pm;
		1021	}
		1022
3707	decky	1023
1552	palkovsky	1024	/** Handle shared memory communication calls
		1025	*
		1026	* Protocol for drawing pixmaps:
		1027	* - FB_PREPARE_SHM(client shm identification)
2025	jermar	1028	* - IPC_M_AS_AREA_SEND
3707	decky	1029	* - FB_DRAW_PPM(startx, starty)
1552	palkovsky	1030	* - FB_DROP_SHM
		1031	*
		1032	* Protocol for text drawing
2025	jermar	1033	* - IPC_M_AS_AREA_SEND
1552	palkovsky	1034	* - FB_DRAW_TEXT_DATA
		1035	*
		1036	* @param callid Callid of the current call
3707	decky	1037	* @param call Current call data
		1038	* @param vp Active viewport
1552	palkovsky	1039	*
3707	decky	1040	* @return false if the call was not handled byt this function, true otherwise
		1041	*
4528	svoboda	1042	* Note: this function is not thread-safe, you would have
		1043	* to redefine static variables with fibril_local.
3707	decky	1044	*
1552	palkovsky	1045	*/
3707	decky	1046	static bool shm_handle(ipc_callid_t callid, ipc_call_t *call, int vp)
1547	palkovsky	1047	{
		1048	static keyfield_t *interbuffer = NULL;
		1049	static size_t intersize = 0;
3707	decky	1050
1720	palkovsky	1051	static unsigned char *shm = NULL;
1555	palkovsky	1052	static ipcarg_t shm_id = 0;
		1053	static size_t shm_size;
3707	decky	1054
		1055	bool handled = true;
		1056	int retval = EOK;
1547	palkovsky	1057	viewport_t *vport = &viewports[vp];
3707	decky	1058	unsigned int x;
		1059	unsigned int y;
4167	svoboda	1060	unsigned int w;
		1061	unsigned int h;
3707	decky	1062
1547	palkovsky	1063	switch (IPC_GET_METHOD(*call)) {
2677	jermar	1064	case IPC_M_SHARE_OUT:
1547	palkovsky	1065	/* We accept one area for data interchange */
1555	palkovsky	1066	if (IPC_GET_ARG1(*call) == shm_id) {
2141	jermar	1067	void dest = as_get_mappable_page(IPC_GET_ARG2(call));
1555	palkovsky	1068	shm_size = IPC_GET_ARG2(*call);
3707	decky	1069	if (!ipc_answer_1(callid, EOK, (sysarg_t) dest))
1555	palkovsky	1070	shm = dest;
1547	palkovsky	1071	else
1555	palkovsky	1072	shm_id = 0;
3707	decky	1073
1555	palkovsky	1074	if (shm[0] != 'P')
3707	decky	1075	return false;
		1076
		1077	return true;
1547	palkovsky	1078	} else {
		1079	intersize = IPC_GET_ARG2(*call);
2015	jermar	1080	receive_comm_area(callid, call, (void *) &interbuffer);
1547	palkovsky	1081	}
3707	decky	1082	return true;
1547	palkovsky	1083	case FB_PREPARE_SHM:
1555	palkovsky	1084	if (shm_id)
1547	palkovsky	1085	retval = EBUSY;
		1086	else
1555	palkovsky	1087	shm_id = IPC_GET_ARG1(*call);
1547	palkovsky	1088	break;
		1089
		1090	case FB_DROP_SHM:
1555	palkovsky	1091	if (shm) {
		1092	as_area_destroy(shm);
		1093	shm = NULL;
1547	palkovsky	1094	}
1555	palkovsky	1095	shm_id = 0;
1547	palkovsky	1096	break;
3707	decky	1097
1555	palkovsky	1098	case FB_SHM2PIXMAP:
		1099	if (!shm) {
		1100	retval = EINVAL;
		1101	break;
		1102	}
		1103	retval = shm2pixmap(shm, shm_size);
		1104	break;
1547	palkovsky	1105	case FB_DRAW_PPM:
1555	palkovsky	1106	if (!shm) {
1547	palkovsky	1107	retval = EINVAL;
		1108	break;
		1109	}
		1110	x = IPC_GET_ARG1(*call);
		1111	y = IPC_GET_ARG2(*call);
3707	decky	1112
		1113	if ((x > vport->width) \|\| (y > vport->height)) {
1547	palkovsky	1114	retval = EINVAL;
		1115	break;
		1116	}
		1117
2025	jermar	1118	ppm_draw(shm, shm_size, IPC_GET_ARG1(*call),
3707	decky	1119	IPC_GET_ARG2(call), vport->width - x, vport->height - y, putpixel, (void ) vport);
1547	palkovsky	1120	break;
		1121	case FB_DRAW_TEXT_DATA:
4167	svoboda	1122	x = IPC_GET_ARG1(*call);
		1123	y = IPC_GET_ARG2(*call);
		1124	w = IPC_GET_ARG3(*call);
		1125	h = IPC_GET_ARG4(*call);
1547	palkovsky	1126	if (!interbuffer) {
		1127	retval = EINVAL;
		1128	break;
		1129	}
4167	svoboda	1130	if (x + w > vport->cols \|\| y + h > vport->rows) {
1547	palkovsky	1131	retval = EINVAL;
		1132	break;
		1133	}
4167	svoboda	1134	if (intersize < w * h * sizeof(*interbuffer)) {
		1135	retval = EINVAL;
		1136	break;
		1137	}
		1138	draw_text_data(vport, interbuffer, x, y, w, h);
1547	palkovsky	1139	break;
		1140	default:
3707	decky	1141	handled = false;
1547	palkovsky	1142	}
		1143
		1144	if (handled)
2619	jermar	1145	ipc_answer_0(callid, retval);
1547	palkovsky	1146	return handled;
		1147	}
		1148
3707	decky	1149
		1150	static void copy_vp_to_pixmap(viewport_t vport, pixmap_t pmap)
1552	palkovsky	1151	{
3707	decky	1152	unsigned int width = vport->width;
		1153	unsigned int height = vport->height;
		1154
1711	palkovsky	1155	if (width + vport->x > screen.xres)
		1156	width = screen.xres - vport->x;
2301	decky	1157	if (height + vport->y > screen.yres)
1711	palkovsky	1158	height = screen.yres - vport->y;
2301	decky	1159
3707	decky	1160	unsigned int realwidth = pmap->width <= width ? pmap->width : width;
		1161	unsigned int realheight = pmap->height <= height ? pmap->height : height;
2301	decky	1162
3707	decky	1163	unsigned int srcrowsize = vport->width * screen.pixelbytes;
		1164	unsigned int realrowsize = realwidth * screen.pixelbytes;
		1165
		1166	unsigned int y;
2301	decky	1167	for (y = 0; y < realheight; y++) {
3707	decky	1168	unsigned int tmp = (vport->y + y) * screen.scanline + vport->x * screen.pixelbytes;
		1169	memcpy(pmap->data + srcrowsize * y, screen.fb_addr + tmp, realrowsize);
1711	palkovsky	1170	}
		1171	}
		1172
3707	decky	1173
		1174	/** Save viewport to pixmap
		1175	*
		1176	*/
		1177	static int save_vp_to_pixmap(viewport_t *vport)
1711	palkovsky	1178	{
		1179	int pm;
		1180	pixmap_t *pmap;
3707	decky	1181
1552	palkovsky	1182	pm = find_free_pixmap();
		1183	if (pm == -1)
		1184	return ELIMIT;
		1185
		1186	pmap = &pixmaps[pm];
		1187	pmap->data = malloc(screen.pixelbytes * vport->width * vport->height);
		1188	if (!pmap->data)
		1189	return ENOMEM;
3707	decky	1190
1552	palkovsky	1191	pmap->width = vport->width;
		1192	pmap->height = vport->height;
3707	decky	1193
1711	palkovsky	1194	copy_vp_to_pixmap(vport, pmap);
1552	palkovsky	1195
		1196	return pm;
		1197	}
		1198
3707	decky	1199
1552	palkovsky	1200	/** Draw pixmap on screen
		1201	*
		1202	* @param vp Viewport to draw on
		1203	* @param pm Pixmap identifier
3707	decky	1204	*
1552	palkovsky	1205	*/
		1206	static int draw_pixmap(int vp, int pm)
		1207	{
		1208	pixmap_t *pmap = &pixmaps[pm];
		1209	viewport_t *vport = &viewports[vp];
3707	decky	1210
		1211	unsigned int width = vport->width;
		1212	unsigned int height = vport->height;
		1213
1711	palkovsky	1214	if (width + vport->x > screen.xres)
		1215	width = screen.xres - vport->x;
		1216	if (height + vport->y > screen.yres)
		1217	height = screen.yres - vport->y;
3707	decky	1218
1552	palkovsky	1219	if (!pmap->data)
		1220	return EINVAL;
3707	decky	1221
		1222	unsigned int realwidth = pmap->width <= width ? pmap->width : width;
		1223	unsigned int realheight = pmap->height <= height ? pmap->height : height;
		1224
		1225	unsigned int srcrowsize = vport->width * screen.pixelbytes;
		1226	unsigned int realrowsize = realwidth * screen.pixelbytes;
		1227
		1228	unsigned int y;
2070	jermar	1229	for (y = 0; y < realheight; y++) {
3707	decky	1230	unsigned int tmp = (vport->y + y) * screen.scanline + vport->x * screen.pixelbytes;
		1231	memcpy(screen.fb_addr + tmp, pmap->data + y * srcrowsize, realrowsize);
1552	palkovsky	1232	}
3707	decky	1233
		1234	return EOK;
1552	palkovsky	1235	}
		1236
3707	decky	1237
		1238	/** Tick animation one step forward
		1239	*
		1240	*/
		1241	static void anims_tick(void)
1646	palkovsky	1242	{
3707	decky	1243	unsigned int i;
1646	palkovsky	1244	static int counts = 0;
		1245
		1246	/* Limit redrawing */
2025	jermar	1247	counts = (counts + 1) % 8;
1646	palkovsky	1248	if (counts)
		1249	return;
4316	decky	1250
2070	jermar	1251	for (i = 0; i < MAX_ANIMATIONS; i++) {
3707	decky	1252	if ((!animations[i].animlen) \|\| (!animations[i].initialized) \|\|
		1253	(!animations[i].enabled))
1646	palkovsky	1254	continue;
3707	decky	1255
		1256	draw_pixmap(animations[i].vp, animations[i].pixmaps[animations[i].pos]);
		1257	animations[i].pos = (animations[i].pos + 1) % animations[i].animlen;
1646	palkovsky	1258	}
		1259	}
		1260
1711	palkovsky	1261
3707	decky	1262	static unsigned int pointer_x;
		1263	static unsigned int pointer_y;
		1264	static bool pointer_shown, pointer_enabled;
1711	palkovsky	1265	static int pointer_vport = -1;
		1266	static int pointer_pixmap = -1;
		1267
3707	decky	1268
		1269	static void mouse_show(void)
1711	palkovsky	1270	{
2070	jermar	1271	int i, j;
1711	palkovsky	1272	int visibility;
		1273	int color;
		1274	int bytepos;
3707	decky	1275
		1276	if ((pointer_shown) \|\| (!pointer_enabled))
1723	palkovsky	1277	return;
3707	decky	1278
3723	svoboda	1279	/* Save image under the pointer. */
1711	palkovsky	1280	if (pointer_vport == -1) {
3707	decky	1281	pointer_vport = vport_create(pointer_x, pointer_y, pointer_width, pointer_height);
1711	palkovsky	1282	if (pointer_vport < 0)
		1283	return;
		1284	} else {
		1285	viewports[pointer_vport].x = pointer_x;
		1286	viewports[pointer_vport].y = pointer_y;
		1287	}
3707	decky	1288
1711	palkovsky	1289	if (pointer_pixmap == -1)
		1290	pointer_pixmap = save_vp_to_pixmap(&viewports[pointer_vport]);
		1291	else
3707	decky	1292	copy_vp_to_pixmap(&viewports[pointer_vport], &pixmaps[pointer_pixmap]);
		1293
3723	svoboda	1294	/* Draw mouse pointer. */
2025	jermar	1295	for (i = 0; i < pointer_height; i++)
		1296	for (j = 0; j < pointer_width; j++) {
		1297	bytepos = i * ((pointer_width - 1) / 8 + 1) + j / 8;
2070	jermar	1298	visibility = pointer_mask_bits[bytepos] &
2619	jermar	1299	(1 << (j % 8));
1711	palkovsky	1300	if (visibility) {
2619	jermar	1301	color = pointer_bits[bytepos] &
		1302	(1 << (j % 8)) ? 0 : 0xffffff;
2025	jermar	1303	if (pointer_x + j < screen.xres && pointer_y +
2619	jermar	1304	i < screen.yres)
2025	jermar	1305	putpixel(&viewports[0], pointer_x + j,
2619	jermar	1306	pointer_y + i, color);
1711	palkovsky	1307	}
		1308	}
		1309	pointer_shown = 1;
		1310	}
		1311
3707	decky	1312
		1313	static void mouse_hide(void)
1711	palkovsky	1314	{
3723	svoboda	1315	/* Restore image under the pointer. */
1711	palkovsky	1316	if (pointer_shown) {
		1317	draw_pixmap(pointer_vport, pointer_pixmap);
		1318	pointer_shown = 0;
		1319	}
		1320	}
		1321
3707	decky	1322
		1323	static void mouse_move(unsigned int x, unsigned int y)
1711	palkovsky	1324	{
		1325	mouse_hide();
		1326	pointer_x = x;
		1327	pointer_y = y;
		1328	mouse_show();
		1329	}
		1330
3707	decky	1331
		1332	static int anim_handle(ipc_callid_t callid, ipc_call_t *call, int vp)
1646	palkovsky	1333	{
3707	decky	1334	bool handled = true;
		1335	int retval = EOK;
		1336	int i, nvp;
1646	palkovsky	1337	int newval;
3707	decky	1338
1646	palkovsky	1339	switch (IPC_GET_METHOD(*call)) {
		1340	case FB_ANIM_CREATE:
		1341	nvp = IPC_GET_ARG1(*call);
		1342	if (nvp == -1)
		1343	nvp = vp;
2025	jermar	1344	if (nvp >= MAX_VIEWPORTS \|\| nvp < 0 \|\|
		1345	!viewports[nvp].initialized) {
1646	palkovsky	1346	retval = EINVAL;
		1347	break;
		1348	}
2025	jermar	1349	for (i = 0; i < MAX_ANIMATIONS; i++) {
		1350	if (!animations[i].initialized)
1646	palkovsky	1351	break;
		1352	}
		1353	if (i == MAX_ANIMATIONS) {
		1354	retval = ELIMIT;
		1355	break;
		1356	}
		1357	animations[i].initialized = 1;
		1358	animations[i].animlen = 0;
		1359	animations[i].pos = 0;
		1360	animations[i].enabled = 0;
		1361	animations[i].vp = nvp;
		1362	retval = i;
		1363	break;
		1364	case FB_ANIM_DROP:
		1365	i = IPC_GET_ARG1(*call);
1720	palkovsky	1366	if (i >= MAX_ANIMATIONS \|\| i < 0) {
1646	palkovsky	1367	retval = EINVAL;
		1368	break;
		1369	}
		1370	animations[i].initialized = 0;
		1371	break;
		1372	case FB_ANIM_ADDPIXMAP:
		1373	i = IPC_GET_ARG1(*call);
2025	jermar	1374	if (i >= MAX_ANIMATIONS \|\| i < 0 \|\|
		1375	!animations[i].initialized) {
1646	palkovsky	1376	retval = EINVAL;
		1377	break;
		1378	}
		1379	if (animations[i].animlen == MAX_ANIM_LEN) {
		1380	retval = ELIMIT;
		1381	break;
		1382	}
		1383	newval = IPC_GET_ARG2(*call);
2025	jermar	1384	if (newval < 0 \|\| newval > MAX_PIXMAPS \|\|
		1385	!pixmaps[newval].data) {
1646	palkovsky	1386	retval = EINVAL;
		1387	break;
		1388	}
		1389	animations[i].pixmaps[animations[i].animlen++] = newval;
		1390	break;
		1391	case FB_ANIM_CHGVP:
		1392	i = IPC_GET_ARG1(*call);
		1393	if (i >= MAX_ANIMATIONS \|\| i < 0) {
		1394	retval = EINVAL;
		1395	break;
		1396	}
		1397	nvp = IPC_GET_ARG2(*call);
		1398	if (nvp == -1)
		1399	nvp = vp;
2025	jermar	1400	if (nvp >= MAX_VIEWPORTS \|\| nvp < 0 \|\|
		1401	!viewports[nvp].initialized) {
1646	palkovsky	1402	retval = EINVAL;
		1403	break;
		1404	}
		1405	animations[i].vp = nvp;
		1406	break;
		1407	case FB_ANIM_START:
		1408	case FB_ANIM_STOP:
		1409	i = IPC_GET_ARG1(*call);
		1410	if (i >= MAX_ANIMATIONS \|\| i < 0) {
		1411	retval = EINVAL;
		1412	break;
		1413	}
		1414	newval = (IPC_GET_METHOD(*call) == FB_ANIM_START);
		1415	if (newval ^ animations[i].enabled) {
		1416	animations[i].enabled = newval;
		1417	anims_enabled += newval ? 1 : -1;
		1418	}
		1419	break;
		1420	default:
		1421	handled = 0;
		1422	}
		1423	if (handled)
2619	jermar	1424	ipc_answer_0(callid, retval);
1646	palkovsky	1425	return handled;
		1426	}
		1427
3707	decky	1428
		1429	/** Handler for messages concerning pixmap handling
		1430	*
		1431	*/
		1432	static int pixmap_handle(ipc_callid_t callid, ipc_call_t *call, int vp)
1552	palkovsky	1433	{
3707	decky	1434	bool handled = true;
		1435	int retval = EOK;
		1436	int i, nvp;
		1437
1552	palkovsky	1438	switch (IPC_GET_METHOD(*call)) {
		1439	case FB_VP_DRAW_PIXMAP:
		1440	nvp = IPC_GET_ARG1(*call);
		1441	if (nvp == -1)
		1442	nvp = vp;
2025	jermar	1443	if (nvp < 0 \|\| nvp >= MAX_VIEWPORTS \|\|
		1444	!viewports[nvp].initialized) {
1552	palkovsky	1445	retval = EINVAL;
		1446	break;
		1447	}
		1448	i = IPC_GET_ARG2(*call);
		1449	retval = draw_pixmap(nvp, i);
		1450	break;
		1451	case FB_VP2PIXMAP:
		1452	nvp = IPC_GET_ARG1(*call);
		1453	if (nvp == -1)
		1454	nvp = vp;
2025	jermar	1455	if (nvp < 0 \|\| nvp >= MAX_VIEWPORTS \|\|
		1456	!viewports[nvp].initialized)
1552	palkovsky	1457	retval = EINVAL;
		1458	else
1711	palkovsky	1459	retval = save_vp_to_pixmap(&viewports[nvp]);
1552	palkovsky	1460	break;
		1461	case FB_DROP_PIXMAP:
		1462	i = IPC_GET_ARG1(*call);
		1463	if (i >= MAX_PIXMAPS) {
		1464	retval = EINVAL;
		1465	break;
		1466	}
		1467	if (pixmaps[i].data) {
		1468	free(pixmaps[i].data);
		1469	pixmaps[i].data = NULL;
		1470	}
		1471	break;
		1472	default:
		1473	handled = 0;
		1474	}
3707	decky	1475
1552	palkovsky	1476	if (handled)
2619	jermar	1477	ipc_answer_0(callid, retval);
1552	palkovsky	1478	return handled;
		1479
		1480	}
		1481
3767	svoboda	1482	static int rgb_from_style(attr_rgb_t *rgb, int style)
		1483	{
		1484	switch (style) {
		1485	case STYLE_NORMAL:
		1486	rgb->fg_color = color_table[COLOR_BLACK];
		1487	rgb->bg_color = color_table[COLOR_WHITE];
		1488	break;
		1489	case STYLE_EMPHASIS:
		1490	rgb->fg_color = color_table[COLOR_RED];
		1491	rgb->bg_color = color_table[COLOR_WHITE];
		1492	break;
		1493	default:
		1494	return EINVAL;
		1495	}
		1496
		1497	return EOK;
		1498	}
		1499
		1500	static int rgb_from_idx(attr_rgb_t *rgb, ipcarg_t fg_color,
		1501	ipcarg_t bg_color, ipcarg_t flags)
		1502	{
		1503	fg_color = (fg_color & 7) \| ((flags & CATTR_BRIGHT) ? 8 : 0);
		1504	bg_color = (bg_color & 7) \| ((flags & CATTR_BRIGHT) ? 8 : 0);
		1505
		1506	rgb->fg_color = color_table[fg_color];
		1507	rgb->bg_color = color_table[bg_color];
		1508
		1509	return EOK;
		1510	}
		1511
3792	svoboda	1512	static int rgb_from_attr(attr_rgb_t rgb, const attrs_t a)
		1513	{
		1514	int rc;
		1515
		1516	switch (a->t) {
		1517	case at_style:
		1518	rc = rgb_from_style(rgb, a->a.s.style);
		1519	break;
		1520	case at_idx:
		1521	rc = rgb_from_idx(rgb, a->a.i.fg_color,
		1522	a->a.i.bg_color, a->a.i.flags);
		1523	break;
		1524	case at_rgb:
		1525	*rgb = a->a.r;
		1526	rc = EOK;
		1527	break;
		1528	}
		1529
		1530	return rc;
		1531	}
		1532
3767	svoboda	1533	static int fb_set_style(viewport_t *vport, ipcarg_t style)
		1534	{
		1535	return rgb_from_style(&vport->attr, (int) style);
		1536	}
		1537
		1538	static int fb_set_color(viewport_t *vport, ipcarg_t fg_color,
		1539	ipcarg_t bg_color, ipcarg_t flags)
		1540	{
		1541	return rgb_from_idx(&vport->attr, fg_color, bg_color, flags);
		1542	}
		1543
1498	palkovsky	1544	/** Function for handling connections to FB
		1545	*
		1546	*/
3707	decky	1547	static void fb_client_connection(ipc_callid_t iid, ipc_call_t *icall)
1363	vana	1548	{
3707	decky	1549	unsigned int vp = 0;
		1550	viewport_t *vport = &viewports[vp];
		1551
1485	palkovsky	1552	if (client_connected) {
2619	jermar	1553	ipc_answer_0(iid, ELIMIT);
1485	palkovsky	1554	return;
		1555	}
3707	decky	1556
		1557	/* Accept connection */
		1558	client_connected = true;
		1559	ipc_answer_0(iid, EOK);
		1560
		1561	while (true) {
		1562	ipc_callid_t callid;
		1563	ipc_call_t call;
		1564	int retval;
		1565	unsigned int i;
		1566	int scroll;
4232	svoboda	1567	wchar_t ch;
4457	decky	1568	unsigned int col, row;
3707	decky	1569
		1570	if ((vport->cursor_active) \|\| (anims_enabled))
2070	jermar	1571	callid = async_get_call_timeout(&call, 250000);
1640	palkovsky	1572	else
		1573	callid = async_get_call(&call);
3707	decky	1574
1713	palkovsky	1575	mouse_hide();
1500	palkovsky	1576	if (!callid) {
1673	palkovsky	1577	cursor_blink(vport);
1646	palkovsky	1578	anims_tick();
1723	palkovsky	1579	mouse_show();
1500	palkovsky	1580	continue;
		1581	}
3707	decky	1582
1547	palkovsky	1583	if (shm_handle(callid, &call, vp))
		1584	continue;
3707	decky	1585
1552	palkovsky	1586	if (pixmap_handle(callid, &call, vp))
		1587	continue;
3707	decky	1588
1646	palkovsky	1589	if (anim_handle(callid, &call, vp))
		1590	continue;
3707	decky	1591
		1592	switch (IPC_GET_METHOD(call)) {
1485	palkovsky	1593	case IPC_M_PHONE_HUNGUP:
3707	decky	1594	client_connected = false;
		1595
		1596	/* Cleanup other viewports */
2025	jermar	1597	for (i = 1; i < MAX_VIEWPORTS; i++)
3707	decky	1598	vport->initialized = false;
		1599
		1600	/* Exit thread */
		1601	return;
		1602
1485	palkovsky	1603	case FB_PUTCHAR:
4232	svoboda	1604	ch = IPC_GET_ARG1(call);
4457	decky	1605	col = IPC_GET_ARG2(call);
		1606	row = IPC_GET_ARG3(call);
3707	decky	1607
		1608	if ((col >= vport->cols) \|\| (row >= vport->rows)) {
1485	palkovsky	1609	retval = EINVAL;
		1610	break;
		1611	}
2619	jermar	1612	ipc_answer_0(callid, EOK);
3707	decky	1613
4232	svoboda	1614	draw_char(vport, ch, col, row);
3707	decky	1615
		1616	/* Message already answered */
		1617	continue;
1485	palkovsky	1618	case FB_CLEAR:
3707	decky	1619	vport_clear(vport);
		1620	cursor_show(vport);
		1621	retval = EOK;
1485	palkovsky	1622	break;
3707	decky	1623	case FB_CURSOR_GOTO:
4457	decky	1624	col = IPC_GET_ARG1(call);
		1625	row = IPC_GET_ARG2(call);
3707	decky	1626
		1627	if ((col >= vport->cols) \|\| (row >= vport->rows)) {
1486	palkovsky	1628	retval = EINVAL;
		1629	break;
		1630	}
3707	decky	1631	retval = EOK;
		1632
1673	palkovsky	1633	cursor_hide(vport);
1486	palkovsky	1634	vport->cur_col = col;
		1635	vport->cur_row = row;
3707	decky	1636	cursor_show(vport);
		1637	break;
1486	palkovsky	1638	case FB_CURSOR_VISIBILITY:
1673	palkovsky	1639	cursor_hide(vport);
1500	palkovsky	1640	vport->cursor_active = IPC_GET_ARG1(call);
3707	decky	1641	cursor_show(vport);
		1642	retval = EOK;
1486	palkovsky	1643	break;
1485	palkovsky	1644	case FB_GET_CSIZE:
4457	decky	1645	ipc_answer_2(callid, EOK, vport->cols, vport->rows);
1485	palkovsky	1646	continue;
1486	palkovsky	1647	case FB_SCROLL:
3707	decky	1648	scroll = IPC_GET_ARG1(call);
		1649	if ((scroll > (int) vport->rows) \|\| (scroll < (-(int) vport->rows))) {
1486	palkovsky	1650	retval = EINVAL;
		1651	break;
		1652	}
1673	palkovsky	1653	cursor_hide(vport);
3707	decky	1654	vport_scroll(vport, scroll);
		1655	cursor_show(vport);
		1656	retval = EOK;
1486	palkovsky	1657	break;
		1658	case FB_VIEWPORT_SWITCH:
		1659	i = IPC_GET_ARG1(call);
3707	decky	1660	if (i >= MAX_VIEWPORTS) {
1486	palkovsky	1661	retval = EINVAL;
		1662	break;
		1663	}
3707	decky	1664	if (!viewports[i].initialized) {
1486	palkovsky	1665	retval = EADDRNOTAVAIL;
		1666	break;
		1667	}
1673	palkovsky	1668	cursor_hide(vport);
1486	palkovsky	1669	vp = i;
		1670	vport = &viewports[vp];
3707	decky	1671	cursor_show(vport);
		1672	retval = EOK;
1486	palkovsky	1673	break;
		1674	case FB_VIEWPORT_CREATE:
3707	decky	1675	retval = vport_create(IPC_GET_ARG1(call) >> 16,
2619	jermar	1676	IPC_GET_ARG1(call) & 0xffff,
		1677	IPC_GET_ARG2(call) >> 16,
		1678	IPC_GET_ARG2(call) & 0xffff);
1486	palkovsky	1679	break;
		1680	case FB_VIEWPORT_DELETE:
		1681	i = IPC_GET_ARG1(call);
3707	decky	1682	if (i >= MAX_VIEWPORTS) {
1486	palkovsky	1683	retval = EINVAL;
		1684	break;
		1685	}
3707	decky	1686	if (!viewports[i].initialized) {
1486	palkovsky	1687	retval = EADDRNOTAVAIL;
		1688	break;
		1689	}
3707	decky	1690	viewports[i].initialized = false;
		1691	if (viewports[i].bgpixel)
		1692	free(viewports[i].bgpixel);
		1693	if (viewports[i].backbuf)
		1694	free(viewports[i].backbuf);
		1695	retval = EOK;
1486	palkovsky	1696	break;
		1697	case FB_SET_STYLE:
3767	svoboda	1698	retval = fb_set_style(vport, IPC_GET_ARG1(call));
		1699	break;
		1700	case FB_SET_COLOR:
		1701	retval = fb_set_color(vport, IPC_GET_ARG1(call),
		1702	IPC_GET_ARG2(call), IPC_GET_ARG3(call));
		1703	break;
		1704	case FB_SET_RGB_COLOR:
		1705	vport->attr.fg_color = IPC_GET_ARG1(call);
		1706	vport->attr.bg_color = IPC_GET_ARG2(call);
3707	decky	1707	retval = EOK;
1486	palkovsky	1708	break;
		1709	case FB_GET_RESOLUTION:
2619	jermar	1710	ipc_answer_2(callid, EOK, screen.xres, screen.yres);
1486	palkovsky	1711	continue;
1707	palkovsky	1712	case FB_POINTER_MOVE:
3707	decky	1713	pointer_enabled = true;
1711	palkovsky	1714	mouse_move(IPC_GET_ARG1(call), IPC_GET_ARG2(call));
3707	decky	1715	retval = EOK;
1707	palkovsky	1716	break;
4326	svoboda	1717	case FB_SCREEN_YIELD:
		1718	case FB_SCREEN_RECLAIM:
4325	svoboda	1719	retval = EOK;
		1720	break;
1485	palkovsky	1721	default:
		1722	retval = ENOENT;
		1723	}
2619	jermar	1724	ipc_answer_0(callid, retval);
1363	vana	1725	}
1485	palkovsky	1726	}
1363	vana	1727
3707	decky	1728	/** Initialization of framebuffer
		1729	*
		1730	*/
		1731	int fb_init(void)
1485	palkovsky	1732	{
1490	palkovsky	1733	async_set_client_connection(fb_client_connection);
1485	palkovsky	1734
3707	decky	1735	void fb_ph_addr = (void ) sysinfo_value("fb.address.physical");
		1736	unsigned int fb_offset = sysinfo_value("fb.offset");
		1737	unsigned int fb_width = sysinfo_value("fb.width");
		1738	unsigned int fb_height = sysinfo_value("fb.height");
		1739	unsigned int fb_scanline = sysinfo_value("fb.scanline");
		1740	unsigned int fb_visual = sysinfo_value("fb.visual");
		1741
		1742	unsigned int fbsize = fb_scanline * fb_height;
		1743	void *fb_addr = as_get_mappable_page(fbsize);
		1744
3908	decky	1745	if (physmem_map(fb_ph_addr + fb_offset, fb_addr,
		1746	ALIGN_UP(fbsize, PAGE_SIZE) >> PAGE_WIDTH, AS_AREA_READ \| AS_AREA_WRITE) != 0)
		1747	return -1;
3707	decky	1748
		1749	if (screen_init(fb_addr, fb_width, fb_height, fb_scanline, fb_visual))
1993	decky	1750	return 0;
		1751
		1752	return -1;
1363	vana	1753	}
1490	palkovsky	1754
3707	decky	1755	/**
1649	cejka	1756	* @}
		1757	*/

Subversion Repositories HelenOS

(root)/trunk/uspace/srv/fb/fb.c/ @ 4316 – Rev 4528