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++) {
4548	svoboda	453	if (((int) row + lines >= 0) &&
		454	((int) row + lines < (int) vport->rows)) {
3767	svoboda	455	xbp = &vport->backbuf[BB_POS(vport, col, row + lines)];
		456	bbp = &vport->backbuf[BB_POS(vport, col, row)];
4316	decky	457
3767	svoboda	458	glyph = xbp->glyph;
		459	fg_color = xbp->fg_color;
		460	bg_color = xbp->bg_color;
4316	decky	461
		462	if ((bbp->glyph == glyph)
		463	&& (bbp->fg_color == xbp->fg_color)
		464	&& (bbp->bg_color == xbp->bg_color)) {
3739	svoboda	465	x += FONT_WIDTH;
		466	continue;
		467	}
		468	} else {
		469	glyph = 0;
3767	svoboda	470	fg_color = vport->attr.fg_color;
		471	bg_color = vport->attr.bg_color;
3739	svoboda	472	}
4316	decky	473
4233	svoboda	474	(*vport->dglyph)(x, y, false, screen.glyphs, glyph,
3767	svoboda	475	fg_color, bg_color);
3739	svoboda	476	x += FONT_WIDTH;
		477	}
		478	y += FONT_SCANLINES;
		479	}
4316	decky	480
3739	svoboda	481	/*
3724	svoboda	482	* Scroll backbuffer.
		483	*/
4316	decky	484
1672	palkovsky	485	if (lines > 0) {
3739	svoboda	486	memmove(vport->backbuf, vport->backbuf + vport->cols * lines,
3767	svoboda	487	vport->cols * (vport->rows - lines) * sizeof(bb_cell_t));
		488	backbuf_clear(&vport->backbuf[BB_POS(vport, 0, vport->rows - lines)],
		489	vport->cols * lines, vport->attr.fg_color, vport->attr.bg_color);
3707	decky	490	} else {
3739	svoboda	491	memmove(vport->backbuf - vport->cols * lines, vport->backbuf,
3767	svoboda	492	vport->cols * (vport->rows + lines) * sizeof(bb_cell_t));
		493	backbuf_clear(vport->backbuf, - vport->cols * lines,
		494	vport->attr.fg_color, vport->attr.bg_color);
1672	palkovsky	495	}
		496	}
		497
3707	decky	498	/** Render glyphs
1558	palkovsky	499	*
3707	decky	500	* Convert glyphs from device independent font
		501	* description to current visual representation.
4316	decky	502	*
1558	palkovsky	503	*/
4233	svoboda	504	static void render_glyphs(void)
1363	vana	505	{
3707	decky	506	unsigned int glyph;
4316	decky	507
3707	decky	508	for (glyph = 0; glyph < FONT_GLYPHS; glyph++) {
		509	unsigned int y;
4316	decky	510
3707	decky	511	for (y = 0; y < FONT_SCANLINES; y++) {
		512	unsigned int x;
4316	decky	513
3707	decky	514	for (x = 0; x < FONT_WIDTH; x++) {
4316	decky	515	screen.mask_conv(&screen.glyphs[GLYPH_POS(glyph, y, false) + x * screen.pixelbytes],
4322	decky	516	(fb_font[glyph][y] & (1 << (7 - x))) ? true : false);
4316	decky	517
		518	screen.mask_conv(&screen.glyphs[GLYPH_POS(glyph, y, true) + x * screen.pixelbytes],
4322	decky	519	(fb_font[glyph][y] & (1 << (7 - x))) ? false : true);
3707	decky	520	}
1509	palkovsky	521	}
		522	}
1363	vana	523	}
		524
1485	palkovsky	525	/** Create new viewport
1363	vana	526	*
3707	decky	527	* @param x Origin of the viewport (x).
		528	* @param y Origin of the viewport (y).
		529	* @param width Width of the viewport.
		530	* @param height Height of the viewport.
		531	*
		532	* @return New viewport number.
		533	*
1363	vana	534	*/
3707	decky	535	static int vport_create(unsigned int x, unsigned int y,
		536	unsigned int width, unsigned int height)
1363	vana	537	{
3707	decky	538	unsigned int i;
		539
2070	jermar	540	for (i = 0; i < MAX_VIEWPORTS; i++) {
1485	palkovsky	541	if (!viewports[i].initialized)
1363	vana	542	break;
		543	}
4316	decky	544
1485	palkovsky	545	if (i == MAX_VIEWPORTS)
		546	return ELIMIT;
3707	decky	547
		548	unsigned int cols = width / FONT_WIDTH;
		549	unsigned int rows = height / FONT_SCANLINES;
3767	svoboda	550	unsigned int bbsize = cols * rows * sizeof(bb_cell_t);
3744	svoboda	551	unsigned int word_size = sizeof(unsigned long);
3707	decky	552
3767	svoboda	553	bb_cell_t backbuf = (bb_cell_t ) malloc(bbsize);
3707	decky	554	if (!backbuf)
		555	return ENOMEM;
		556
		557	uint8_t bgpixel = (uint8_t ) malloc(screen.pixelbytes);
		558	if (!bgpixel) {
		559	free(backbuf);
		560	return ENOMEM;
		561	}
4316	decky	562
3767	svoboda	563	backbuf_clear(backbuf, cols * rows, DEFAULT_FGCOLOR, DEFAULT_BGCOLOR);
3707	decky	564	memset(bgpixel, 0, screen.pixelbytes);
		565
1485	palkovsky	566	viewports[i].x = x;
		567	viewports[i].y = y;
		568	viewports[i].width = width;
		569	viewports[i].height = height;
1363	vana	570
3707	decky	571	viewports[i].cols = cols;
		572	viewports[i].rows = rows;
		573
3767	svoboda	574	viewports[i].attr.bg_color = DEFAULT_BGCOLOR;
		575	viewports[i].attr.fg_color = DEFAULT_FGCOLOR;
1363	vana	576
3707	decky	577	viewports[i].bgpixel = bgpixel;
4316	decky	578
3744	svoboda	579	/*
4316	decky	580	* Conditions necessary to select aligned version:
		581	* - word size is divisible by pixelbytes
		582	* - cell scanline size is divisible by word size
		583	* - cell scanlines are word-aligned
3744	svoboda	584	*
		585	*/
4316	decky	586	if (((word_size % screen.pixelbytes) == 0)
		587	&& ((FONT_WIDTH * screen.pixelbytes) % word_size == 0)
		588	&& ((x * screen.pixelbytes) % word_size == 0)
		589	&& (screen.scanline % word_size == 0)) {
3744	svoboda	590	viewports[i].dglyph = draw_glyph_aligned;
		591	} else {
		592	viewports[i].dglyph = draw_glyph_fallback;
		593	}
4316	decky	594
1489	palkovsky	595	viewports[i].cur_col = 0;
		596	viewports[i].cur_row = 0;
3707	decky	597	viewports[i].cursor_active = false;
		598	viewports[i].cursor_shown = false;
		599
		600	viewports[i].bbsize = bbsize;
		601	viewports[i].backbuf = backbuf;
		602
		603	viewports[i].initialized = true;
		604
4233	svoboda	605	screen.rgb_conv(viewports[i].bgpixel, viewports[i].attr.bg_color);
3707	decky	606
1485	palkovsky	607	return i;
1363	vana	608	}
		609
3707	decky	610
1363	vana	611	/** Initialize framebuffer as a chardev output device
		612	*
3707	decky	613	* @param addr Address of the framebuffer
		614	* @param xres Screen width in pixels
		615	* @param yres Screen height in pixels
		616	* @param visual Bits per pixel (8, 16, 24, 32)
		617	* @param scan Bytes per one scanline
1363	vana	618	*
		619	*/
3707	decky	620	static bool screen_init(void *addr, unsigned int xres, unsigned int yres,
		621	unsigned int scan, unsigned int visual)
1363	vana	622	{
4316	decky	623
		624
1993	decky	625	switch (visual) {
		626	case VISUAL_INDIRECT_8:
3707	decky	627	screen.rgb_conv = rgb_323;
4316	decky	628	screen.mask_conv = mask_323;
1886	jermar	629	screen.pixelbytes = 1;
		630	break;
1993	decky	631	case VISUAL_RGB_5_5_5:
3707	decky	632	screen.rgb_conv = rgb_555;
4316	decky	633	screen.mask_conv = mask_555;
1886	jermar	634	screen.pixelbytes = 2;
		635	break;
1993	decky	636	case VISUAL_RGB_5_6_5:
3707	decky	637	screen.rgb_conv = rgb_565;
4316	decky	638	screen.mask_conv = mask_565;
1993	decky	639	screen.pixelbytes = 2;
1886	jermar	640	break;
1993	decky	641	case VISUAL_RGB_8_8_8:
3707	decky	642	screen.rgb_conv = rgb_888;
4316	decky	643	screen.mask_conv = mask_888;
1993	decky	644	screen.pixelbytes = 3;
		645	break;
3882	decky	646	case VISUAL_BGR_8_8_8:
		647	screen.rgb_conv = bgr_888;
4316	decky	648	screen.mask_conv = mask_888;
3882	decky	649	screen.pixelbytes = 3;
		650	break;
1993	decky	651	case VISUAL_RGB_8_8_8_0:
3707	decky	652	screen.rgb_conv = rgb_888;
4316	decky	653	screen.mask_conv = mask_888;
1886	jermar	654	screen.pixelbytes = 4;
		655	break;
1993	decky	656	case VISUAL_RGB_0_8_8_8:
3707	decky	657	screen.rgb_conv = rgb_0888;
4316	decky	658	screen.mask_conv = mask_0888;
1993	decky	659	screen.pixelbytes = 4;
		660	break;
1994	decky	661	case VISUAL_BGR_0_8_8_8:
3707	decky	662	screen.rgb_conv = bgr_0888;
4316	decky	663	screen.mask_conv = mask_0888;
1994	decky	664	screen.pixelbytes = 4;
		665	break;
1993	decky	666	default:
		667	return false;
1363	vana	668	}
4316	decky	669
3707	decky	670	screen.fb_addr = (unsigned char *) addr;
1485	palkovsky	671	screen.xres = xres;
		672	screen.yres = yres;
		673	screen.scanline = scan;
1363	vana	674
3707	decky	675	screen.glyphscanline = FONT_WIDTH * screen.pixelbytes;
		676	screen.glyphbytes = screen.glyphscanline * FONT_SCANLINES;
4316	decky	677
		678	size_t glyphsize = 2 * FONT_GLYPHS * screen.glyphbytes;
		679	uint8_t glyphs = (uint8_t ) malloc(glyphsize);
4233	svoboda	680	if (!glyphs)
		681	return false;
3707	decky	682
4233	svoboda	683	memset(glyphs, 0, glyphsize);
		684	screen.glyphs = glyphs;
4316	decky	685
4233	svoboda	686	render_glyphs();
		687
1485	palkovsky	688	/* Create first viewport */
3707	decky	689	vport_create(0, 0, xres, yres);
1993	decky	690
		691	return true;
1485	palkovsky	692	}
1363	vana	693
3707	decky	694
3744	svoboda	695	/** Draw a glyph, takes advantage of alignment.
3707	decky	696	*
3744	svoboda	697	* This version can only be used if the following conditions are met:
3739	svoboda	698	*
3744	svoboda	699	* - word size is divisible by pixelbytes
		700	* - cell scanline size is divisible by word size
		701	* - cell scanlines are word-aligned
		702	*
		703	* It makes use of the pre-rendered mask to process (possibly) several
		704	* pixels at once (word size / pixelbytes pixels at a time are processed)
		705	* making it very fast. Most notably this version is not applicable at 24 bits
		706	* per pixel.
		707	*
4316	decky	708	* @param x x coordinate of top-left corner on screen.
		709	* @param y y coordinate of top-left corner on screen.
		710	* @param cursor Draw glyph with cursor
		711	* @param glyphs Pointer to font bitmap.
		712	* @param glyph Code of the glyph to draw.
		713	* @param fg_color Foreground color.
		714	* @param bg_color Backgroudn color.
		715	*
3739	svoboda	716	*/
3744	svoboda	717	static void draw_glyph_aligned(unsigned int x, unsigned int y, bool cursor,
4211	svoboda	718	uint8_t *glyphs, uint32_t glyph, uint32_t fg_color, uint32_t bg_color)
3739	svoboda	719	{
4316	decky	720	unsigned int i;
		721	unsigned int yd;
		722	unsigned long fg_buf;
		723	unsigned long bg_buf;
3744	svoboda	724	unsigned long mask;
4316	decky	725
3744	svoboda	726	/*
		727	* Prepare a pair of words, one filled with foreground-color
		728	* pattern and the other filled with background-color pattern.
		729	*/
		730	for (i = 0; i < sizeof(unsigned long) / screen.pixelbytes; i++) {
4316	decky	731	screen.rgb_conv(&((uint8_t ) &fg_buf)[i screen.pixelbytes],
3744	svoboda	732	fg_color);
4316	decky	733	screen.rgb_conv(&((uint8_t ) &bg_buf)[i screen.pixelbytes],
3744	svoboda	734	bg_color);
		735	}
4316	decky	736
3744	svoboda	737	/* Pointer to the current position in the mask. */
4316	decky	738	unsigned long maskp = (unsigned long ) &glyphs[GLYPH_POS(glyph, 0, cursor)];
		739
3744	svoboda	740	/* Pointer to the current position on the screen. */
4316	decky	741	unsigned long dp = (unsigned long ) &screen.fb_addr[FB_POS(x, y)];
		742
3744	svoboda	743	/* Width of the character cell in words. */
4316	decky	744	unsigned int ww = FONT_WIDTH * screen.pixelbytes / sizeof(unsigned long);
		745
3744	svoboda	746	/* Offset to add when moving to another screen scanline. */
4316	decky	747	unsigned int d_add = screen.scanline - FONT_WIDTH * screen.pixelbytes;
		748
3744	svoboda	749	for (yd = 0; yd < FONT_SCANLINES; yd++) {
		750	/*
		751	* Now process the cell scanline, combining foreground
		752	* and background color patters using the pre-rendered mask.
		753	*/
		754	for (i = 0; i < ww; i++) {
		755	mask = *maskp++;
		756	*dp++ = (fg_buf & mask) \| (bg_buf & ~mask);
		757	}
4316	decky	758
3744	svoboda	759	/* Move to the beginning of the next scanline of the cell. */
		760	dp = (unsigned long ) ((uint8_t ) dp + d_add);
		761	}
3739	svoboda	762	}
		763
3744	svoboda	764	/** Draw a glyph, fallback version.
		765	*
		766	* This version does not make use of the pre-rendered mask, it uses
		767	* the font bitmap directly. It works always, but it is slower.
		768	*
4316	decky	769	* @param x x coordinate of top-left corner on screen.
		770	* @param y y coordinate of top-left corner on screen.
		771	* @param cursor Draw glyph with cursor
		772	* @param glyphs Pointer to font bitmap.
		773	* @param glyph Code of the glyph to draw.
		774	* @param fg_color Foreground color.
		775	* @param bg_color Backgroudn color.
		776	*
3744	svoboda	777	*/
		778	void draw_glyph_fallback(unsigned int x, unsigned int y, bool cursor,
4211	svoboda	779	uint8_t *glyphs, uint32_t glyph, uint32_t fg_color, uint32_t bg_color)
3744	svoboda	780	{
4316	decky	781	unsigned int i;
		782	unsigned int j;
		783	unsigned int yd;
		784	uint8_t fg_buf[4];
		785	uint8_t bg_buf[4];
		786	uint8_t *sp;
3744	svoboda	787	uint8_t b;
4316	decky	788
3744	svoboda	789	/* Pre-render 1x the foreground and background color pixels. */
		790	if (cursor) {
		791	screen.rgb_conv(fg_buf, bg_color);
		792	screen.rgb_conv(bg_buf, fg_color);
		793	} else {
		794	screen.rgb_conv(fg_buf, fg_color);
		795	screen.rgb_conv(bg_buf, bg_color);
		796	}
4316	decky	797
3744	svoboda	798	/* Pointer to the current position on the screen. */
4316	decky	799	uint8_t dp = (uint8_t ) &screen.fb_addr[FB_POS(x, y)];
		800
3744	svoboda	801	/* Offset to add when moving to another screen scanline. */
4316	decky	802	unsigned int d_add = screen.scanline - FONT_WIDTH * screen.pixelbytes;
		803
3744	svoboda	804	for (yd = 0; yd < FONT_SCANLINES; yd++) {
		805	/* Byte containing bits of the glyph scanline. */
4232	svoboda	806	b = fb_font[glyph][yd];
4316	decky	807
3744	svoboda	808	for (i = 0; i < FONT_WIDTH; i++) {
		809	/* Choose color based on the current bit. */
		810	sp = (b & 0x80) ? fg_buf : bg_buf;
4316	decky	811
3744	svoboda	812	/* Copy the pixel. */
		813	for (j = 0; j < screen.pixelbytes; j++) {
		814	dp++ = sp++;
		815	}
4316	decky	816
3744	svoboda	817	/* Move to the next bit. */
		818	b = b << 1;
		819	}
		820
		821	/* Move to the beginning of the next scanline of the cell. */
		822	dp += d_add;
		823	}
		824	}
		825
4316	decky	826	/** Draw glyph at specified position in viewport.
3739	svoboda	827	*
3707	decky	828	* @param vport Viewport identification
		829	* @param cursor Draw glyph with cursor
		830	* @param col Screen position relative to viewport
		831	* @param row Screen position relative to viewport
		832	*
		833	*/
3739	svoboda	834	static void draw_vp_glyph(viewport_t *vport, bool cursor, unsigned int col,
		835	unsigned int row)
1500	palkovsky	836	{
3707	decky	837	unsigned int x = vport->x + COL2X(col);
		838	unsigned int y = vport->y + ROW2Y(row);
		839
4316	decky	840	uint32_t glyph = vport->backbuf[BB_POS(vport, col, row)].glyph;
		841	uint32_t fg_color = vport->backbuf[BB_POS(vport, col, row)].fg_color;
		842	uint32_t bg_color = vport->backbuf[BB_POS(vport, col, row)].bg_color;
		843
4233	svoboda	844	(*vport->dglyph)(x, y, cursor, screen.glyphs, glyph,
3767	svoboda	845	fg_color, bg_color);
3707	decky	846	}
		847
		848	/** Hide cursor if it is shown
		849	*
		850	*/
		851	static void cursor_hide(viewport_t *vport)
		852	{
		853	if ((vport->cursor_active) && (vport->cursor_shown)) {
3739	svoboda	854	draw_vp_glyph(vport, false, vport->cur_col, vport->cur_row);
3707	decky	855	vport->cursor_shown = false;
1500	palkovsky	856	}
		857	}
		858
3707	decky	859
		860	/** Show cursor if cursor showing is enabled
		861	*
		862	*/
		863	static void cursor_show(viewport_t *vport)
1500	palkovsky	864	{
		865	/* Do not check for cursor_shown */
		866	if (vport->cursor_active) {
3739	svoboda	867	draw_vp_glyph(vport, true, vport->cur_col, vport->cur_row);
3707	decky	868	vport->cursor_shown = true;
1500	palkovsky	869	}
		870	}
		871
3707	decky	872
		873	/** Invert cursor, if it is enabled
		874	*
		875	*/
		876	static void cursor_blink(viewport_t *vport)
1500	palkovsky	877	{
		878	if (vport->cursor_shown)
1673	palkovsky	879	cursor_hide(vport);
1500	palkovsky	880	else
3707	decky	881	cursor_show(vport);
1500	palkovsky	882	}
		883
3707	decky	884
		885	/** Draw character at given position relative to viewport
		886	*
		887	* @param vport Viewport identification
		888	* @param c Character to draw
		889	* @param col Screen position relative to viewport
		890	* @param row Screen position relative to viewport
		891	*
1498	palkovsky	892	*/
4211	svoboda	893	static void draw_char(viewport_t *vport, wchar_t c, unsigned int col, unsigned int row)
1486	palkovsky	894	{
3767	svoboda	895	bb_cell_t *bbp;
4316	decky	896
3707	decky	897	/* Do not hide cursor if we are going to overwrite it */
		898	if ((vport->cursor_active) && (vport->cursor_shown) &&
		899	((vport->cur_col != col) \|\| (vport->cur_row != row)))
		900	cursor_hide(vport);
4316	decky	901
3767	svoboda	902	bbp = &vport->backbuf[BB_POS(vport, col, row)];
4232	svoboda	903	bbp->glyph = fb_font_glyph(c);
3767	svoboda	904	bbp->fg_color = vport->attr.fg_color;
		905	bbp->bg_color = vport->attr.bg_color;
4316	decky	906
3739	svoboda	907	draw_vp_glyph(vport, false, col, row);
3707	decky	908
1489	palkovsky	909	vport->cur_col = col;
		910	vport->cur_row = row;
3707	decky	911
1489	palkovsky	912	vport->cur_col++;
2025	jermar	913	if (vport->cur_col >= vport->cols) {
1489	palkovsky	914	vport->cur_col = 0;
		915	vport->cur_row++;
		916	if (vport->cur_row >= vport->rows)
		917	vport->cur_row--;
1486	palkovsky	918	}
3707	decky	919
		920	cursor_show(vport);
1486	palkovsky	921	}
		922
4167	svoboda	923	/** Draw text data to viewport.
1552	palkovsky	924	*
1709	jermar	925	* @param vport Viewport id
4167	svoboda	926	* @param data Text data.
4316	decky	927	* @param x Leftmost column of the area.
		928	* @param y Topmost row of the area.
		929	* @param w Number of rows.
		930	* @param h Number of columns.
		931	*
1552	palkovsky	932	*/
4167	svoboda	933	static void draw_text_data(viewport_t vport, keyfield_t data, unsigned int x,
		934	unsigned int y, unsigned int w, unsigned int h)
1505	palkovsky	935	{
4316	decky	936	unsigned int i;
		937	unsigned int j;
3767	svoboda	938	bb_cell_t *bbp;
		939	attrs_t *a;
		940	attr_rgb_t rgb;
4316	decky	941
4167	svoboda	942	for (j = 0; j < h; j++) {
		943	for (i = 0; i < w; i++) {
		944	unsigned int col = x + i;
		945	unsigned int row = y + j;
4316	decky	946
4167	svoboda	947	bbp = &vport->backbuf[BB_POS(vport, col, row)];
4316	decky	948
4167	svoboda	949	a = &data[j * w + i].attrs;
		950	rgb_from_attr(&rgb, a);
4316	decky	951
4232	svoboda	952	bbp->glyph = fb_font_glyph(data[j * w + i].character);
4167	svoboda	953	bbp->fg_color = rgb.fg_color;
		954	bbp->bg_color = rgb.bg_color;
4316	decky	955
4167	svoboda	956	draw_vp_glyph(vport, false, col, row);
		957	}
1505	palkovsky	958	}
3707	decky	959	cursor_show(vport);
1505	palkovsky	960	}
		961
3707	decky	962
		963	static void putpixel_pixmap(void *data, unsigned int x, unsigned int y, uint32_t color)
1555	palkovsky	964	{
3707	decky	965	int pm = ((int ) data);
		966	pixmap_t *pmap = &pixmaps[pm];
		967	unsigned int pos = (y * pmap->width + x) * screen.pixelbytes;
1555	palkovsky	968
3707	decky	969	screen.rgb_conv(&pmap->data[pos], color);
		970	}
		971
		972
		973	static void putpixel(void *data, unsigned int x, unsigned int y, uint32_t color)
		974	{
		975	viewport_t vport = (viewport_t ) data;
		976	unsigned int dx = vport->x + x;
		977	unsigned int dy = vport->y + y;
		978
		979	screen.rgb_conv(&screen.fb_addr[FB_POS(dx, dy)], color);
		980	}
		981
		982
		983	/** Return first free pixmap
		984	*
		985	*/
		986	static int find_free_pixmap(void)
		987	{
		988	unsigned int i;
		989
		990	for (i = 0; i < MAX_PIXMAPS; i++)
1555	palkovsky	991	if (!pixmaps[i].data)
		992	return i;
3707	decky	993
1555	palkovsky	994	return -1;
		995	}
		996
		997
3707	decky	998	/** Create a new pixmap and return appropriate ID
		999	*
		1000	*/
		1001	static int shm2pixmap(unsigned char *shm, size_t size)
1555	palkovsky	1002	{
		1003	int pm;
		1004	pixmap_t *pmap;
3707	decky	1005
1555	palkovsky	1006	pm = find_free_pixmap();
		1007	if (pm == -1)
		1008	return ELIMIT;
3707	decky	1009
1555	palkovsky	1010	pmap = &pixmaps[pm];
		1011
		1012	if (ppm_get_data(shm, size, &pmap->width, &pmap->height))
		1013	return EINVAL;
		1014
		1015	pmap->data = malloc(pmap->width * pmap->height * screen.pixelbytes);
		1016	if (!pmap->data)
		1017	return ENOMEM;
3707	decky	1018
		1019	ppm_draw(shm, size, 0, 0, pmap->width, pmap->height, putpixel_pixmap, (void *) &pm);
		1020
1555	palkovsky	1021	return pm;
		1022	}
		1023
3707	decky	1024
1552	palkovsky	1025	/** Handle shared memory communication calls
		1026	*
		1027	* Protocol for drawing pixmaps:
		1028	* - FB_PREPARE_SHM(client shm identification)
2025	jermar	1029	* - IPC_M_AS_AREA_SEND
3707	decky	1030	* - FB_DRAW_PPM(startx, starty)
1552	palkovsky	1031	* - FB_DROP_SHM
		1032	*
		1033	* Protocol for text drawing
2025	jermar	1034	* - IPC_M_AS_AREA_SEND
1552	palkovsky	1035	* - FB_DRAW_TEXT_DATA
		1036	*
		1037	* @param callid Callid of the current call
3707	decky	1038	* @param call Current call data
		1039	* @param vp Active viewport
1552	palkovsky	1040	*
3707	decky	1041	* @return false if the call was not handled byt this function, true otherwise
		1042	*
4528	svoboda	1043	* Note: this function is not thread-safe, you would have
		1044	* to redefine static variables with fibril_local.
3707	decky	1045	*
1552	palkovsky	1046	*/
3707	decky	1047	static bool shm_handle(ipc_callid_t callid, ipc_call_t *call, int vp)
1547	palkovsky	1048	{
		1049	static keyfield_t *interbuffer = NULL;
		1050	static size_t intersize = 0;
3707	decky	1051
1720	palkovsky	1052	static unsigned char *shm = NULL;
1555	palkovsky	1053	static ipcarg_t shm_id = 0;
		1054	static size_t shm_size;
3707	decky	1055
		1056	bool handled = true;
		1057	int retval = EOK;
1547	palkovsky	1058	viewport_t *vport = &viewports[vp];
3707	decky	1059	unsigned int x;
		1060	unsigned int y;
4167	svoboda	1061	unsigned int w;
		1062	unsigned int h;
3707	decky	1063
1547	palkovsky	1064	switch (IPC_GET_METHOD(*call)) {
2677	jermar	1065	case IPC_M_SHARE_OUT:
1547	palkovsky	1066	/* We accept one area for data interchange */
1555	palkovsky	1067	if (IPC_GET_ARG1(*call) == shm_id) {
2141	jermar	1068	void dest = as_get_mappable_page(IPC_GET_ARG2(call));
1555	palkovsky	1069	shm_size = IPC_GET_ARG2(*call);
3707	decky	1070	if (!ipc_answer_1(callid, EOK, (sysarg_t) dest))
1555	palkovsky	1071	shm = dest;
1547	palkovsky	1072	else
1555	palkovsky	1073	shm_id = 0;
3707	decky	1074
1555	palkovsky	1075	if (shm[0] != 'P')
3707	decky	1076	return false;
		1077
		1078	return true;
1547	palkovsky	1079	} else {
		1080	intersize = IPC_GET_ARG2(*call);
2015	jermar	1081	receive_comm_area(callid, call, (void *) &interbuffer);
1547	palkovsky	1082	}
3707	decky	1083	return true;
1547	palkovsky	1084	case FB_PREPARE_SHM:
1555	palkovsky	1085	if (shm_id)
1547	palkovsky	1086	retval = EBUSY;
		1087	else
1555	palkovsky	1088	shm_id = IPC_GET_ARG1(*call);
1547	palkovsky	1089	break;
		1090
		1091	case FB_DROP_SHM:
1555	palkovsky	1092	if (shm) {
		1093	as_area_destroy(shm);
		1094	shm = NULL;
1547	palkovsky	1095	}
1555	palkovsky	1096	shm_id = 0;
1547	palkovsky	1097	break;
3707	decky	1098
1555	palkovsky	1099	case FB_SHM2PIXMAP:
		1100	if (!shm) {
		1101	retval = EINVAL;
		1102	break;
		1103	}
		1104	retval = shm2pixmap(shm, shm_size);
		1105	break;
1547	palkovsky	1106	case FB_DRAW_PPM:
1555	palkovsky	1107	if (!shm) {
1547	palkovsky	1108	retval = EINVAL;
		1109	break;
		1110	}
		1111	x = IPC_GET_ARG1(*call);
		1112	y = IPC_GET_ARG2(*call);
3707	decky	1113
		1114	if ((x > vport->width) \|\| (y > vport->height)) {
1547	palkovsky	1115	retval = EINVAL;
		1116	break;
		1117	}
		1118
2025	jermar	1119	ppm_draw(shm, shm_size, IPC_GET_ARG1(*call),
3707	decky	1120	IPC_GET_ARG2(call), vport->width - x, vport->height - y, putpixel, (void ) vport);
1547	palkovsky	1121	break;
		1122	case FB_DRAW_TEXT_DATA:
4167	svoboda	1123	x = IPC_GET_ARG1(*call);
		1124	y = IPC_GET_ARG2(*call);
		1125	w = IPC_GET_ARG3(*call);
		1126	h = IPC_GET_ARG4(*call);
1547	palkovsky	1127	if (!interbuffer) {
		1128	retval = EINVAL;
		1129	break;
		1130	}
4167	svoboda	1131	if (x + w > vport->cols \|\| y + h > vport->rows) {
1547	palkovsky	1132	retval = EINVAL;
		1133	break;
		1134	}
4167	svoboda	1135	if (intersize < w * h * sizeof(*interbuffer)) {
		1136	retval = EINVAL;
		1137	break;
		1138	}
		1139	draw_text_data(vport, interbuffer, x, y, w, h);
1547	palkovsky	1140	break;
		1141	default:
3707	decky	1142	handled = false;
1547	palkovsky	1143	}
		1144
		1145	if (handled)
2619	jermar	1146	ipc_answer_0(callid, retval);
1547	palkovsky	1147	return handled;
		1148	}
		1149
3707	decky	1150
		1151	static void copy_vp_to_pixmap(viewport_t vport, pixmap_t pmap)
1552	palkovsky	1152	{
3707	decky	1153	unsigned int width = vport->width;
		1154	unsigned int height = vport->height;
		1155
1711	palkovsky	1156	if (width + vport->x > screen.xres)
		1157	width = screen.xres - vport->x;
2301	decky	1158	if (height + vport->y > screen.yres)
1711	palkovsky	1159	height = screen.yres - vport->y;
2301	decky	1160
3707	decky	1161	unsigned int realwidth = pmap->width <= width ? pmap->width : width;
		1162	unsigned int realheight = pmap->height <= height ? pmap->height : height;
2301	decky	1163
3707	decky	1164	unsigned int srcrowsize = vport->width * screen.pixelbytes;
		1165	unsigned int realrowsize = realwidth * screen.pixelbytes;
		1166
		1167	unsigned int y;
2301	decky	1168	for (y = 0; y < realheight; y++) {
3707	decky	1169	unsigned int tmp = (vport->y + y) * screen.scanline + vport->x * screen.pixelbytes;
		1170	memcpy(pmap->data + srcrowsize * y, screen.fb_addr + tmp, realrowsize);
1711	palkovsky	1171	}
		1172	}
		1173
3707	decky	1174
		1175	/** Save viewport to pixmap
		1176	*
		1177	*/
		1178	static int save_vp_to_pixmap(viewport_t *vport)
1711	palkovsky	1179	{
		1180	int pm;
		1181	pixmap_t *pmap;
3707	decky	1182
1552	palkovsky	1183	pm = find_free_pixmap();
		1184	if (pm == -1)
		1185	return ELIMIT;
		1186
		1187	pmap = &pixmaps[pm];
		1188	pmap->data = malloc(screen.pixelbytes * vport->width * vport->height);
		1189	if (!pmap->data)
		1190	return ENOMEM;
3707	decky	1191
1552	palkovsky	1192	pmap->width = vport->width;
		1193	pmap->height = vport->height;
3707	decky	1194
1711	palkovsky	1195	copy_vp_to_pixmap(vport, pmap);
1552	palkovsky	1196
		1197	return pm;
		1198	}
		1199
3707	decky	1200
1552	palkovsky	1201	/** Draw pixmap on screen
		1202	*
		1203	* @param vp Viewport to draw on
		1204	* @param pm Pixmap identifier
3707	decky	1205	*
1552	palkovsky	1206	*/
		1207	static int draw_pixmap(int vp, int pm)
		1208	{
		1209	pixmap_t *pmap = &pixmaps[pm];
		1210	viewport_t *vport = &viewports[vp];
3707	decky	1211
		1212	unsigned int width = vport->width;
		1213	unsigned int height = vport->height;
		1214
1711	palkovsky	1215	if (width + vport->x > screen.xres)
		1216	width = screen.xres - vport->x;
		1217	if (height + vport->y > screen.yres)
		1218	height = screen.yres - vport->y;
3707	decky	1219
1552	palkovsky	1220	if (!pmap->data)
		1221	return EINVAL;
3707	decky	1222
		1223	unsigned int realwidth = pmap->width <= width ? pmap->width : width;
		1224	unsigned int realheight = pmap->height <= height ? pmap->height : height;
		1225
		1226	unsigned int srcrowsize = vport->width * screen.pixelbytes;
		1227	unsigned int realrowsize = realwidth * screen.pixelbytes;
		1228
		1229	unsigned int y;
2070	jermar	1230	for (y = 0; y < realheight; y++) {
3707	decky	1231	unsigned int tmp = (vport->y + y) * screen.scanline + vport->x * screen.pixelbytes;
		1232	memcpy(screen.fb_addr + tmp, pmap->data + y * srcrowsize, realrowsize);
1552	palkovsky	1233	}
3707	decky	1234
		1235	return EOK;
1552	palkovsky	1236	}
		1237
3707	decky	1238
		1239	/** Tick animation one step forward
		1240	*
		1241	*/
		1242	static void anims_tick(void)
1646	palkovsky	1243	{
3707	decky	1244	unsigned int i;
1646	palkovsky	1245	static int counts = 0;
		1246
		1247	/* Limit redrawing */
2025	jermar	1248	counts = (counts + 1) % 8;
1646	palkovsky	1249	if (counts)
		1250	return;
4316	decky	1251
2070	jermar	1252	for (i = 0; i < MAX_ANIMATIONS; i++) {
3707	decky	1253	if ((!animations[i].animlen) \|\| (!animations[i].initialized) \|\|
		1254	(!animations[i].enabled))
1646	palkovsky	1255	continue;
3707	decky	1256
		1257	draw_pixmap(animations[i].vp, animations[i].pixmaps[animations[i].pos]);
		1258	animations[i].pos = (animations[i].pos + 1) % animations[i].animlen;
1646	palkovsky	1259	}
		1260	}
		1261
1711	palkovsky	1262
3707	decky	1263	static unsigned int pointer_x;
		1264	static unsigned int pointer_y;
		1265	static bool pointer_shown, pointer_enabled;
1711	palkovsky	1266	static int pointer_vport = -1;
		1267	static int pointer_pixmap = -1;
		1268
3707	decky	1269
		1270	static void mouse_show(void)
1711	palkovsky	1271	{
2070	jermar	1272	int i, j;
1711	palkovsky	1273	int visibility;
		1274	int color;
		1275	int bytepos;
3707	decky	1276
		1277	if ((pointer_shown) \|\| (!pointer_enabled))
1723	palkovsky	1278	return;
3707	decky	1279
3723	svoboda	1280	/* Save image under the pointer. */
1711	palkovsky	1281	if (pointer_vport == -1) {
3707	decky	1282	pointer_vport = vport_create(pointer_x, pointer_y, pointer_width, pointer_height);
1711	palkovsky	1283	if (pointer_vport < 0)
		1284	return;
		1285	} else {
		1286	viewports[pointer_vport].x = pointer_x;
		1287	viewports[pointer_vport].y = pointer_y;
		1288	}
3707	decky	1289
1711	palkovsky	1290	if (pointer_pixmap == -1)
		1291	pointer_pixmap = save_vp_to_pixmap(&viewports[pointer_vport]);
		1292	else
3707	decky	1293	copy_vp_to_pixmap(&viewports[pointer_vport], &pixmaps[pointer_pixmap]);
		1294
3723	svoboda	1295	/* Draw mouse pointer. */
2025	jermar	1296	for (i = 0; i < pointer_height; i++)
		1297	for (j = 0; j < pointer_width; j++) {
		1298	bytepos = i * ((pointer_width - 1) / 8 + 1) + j / 8;
2070	jermar	1299	visibility = pointer_mask_bits[bytepos] &
2619	jermar	1300	(1 << (j % 8));
1711	palkovsky	1301	if (visibility) {
2619	jermar	1302	color = pointer_bits[bytepos] &
		1303	(1 << (j % 8)) ? 0 : 0xffffff;
2025	jermar	1304	if (pointer_x + j < screen.xres && pointer_y +
2619	jermar	1305	i < screen.yres)
2025	jermar	1306	putpixel(&viewports[0], pointer_x + j,
2619	jermar	1307	pointer_y + i, color);
1711	palkovsky	1308	}
		1309	}
		1310	pointer_shown = 1;
		1311	}
		1312
3707	decky	1313
		1314	static void mouse_hide(void)
1711	palkovsky	1315	{
3723	svoboda	1316	/* Restore image under the pointer. */
1711	palkovsky	1317	if (pointer_shown) {
		1318	draw_pixmap(pointer_vport, pointer_pixmap);
		1319	pointer_shown = 0;
		1320	}
		1321	}
		1322
3707	decky	1323
		1324	static void mouse_move(unsigned int x, unsigned int y)
1711	palkovsky	1325	{
		1326	mouse_hide();
		1327	pointer_x = x;
		1328	pointer_y = y;
		1329	mouse_show();
		1330	}
		1331
3707	decky	1332
		1333	static int anim_handle(ipc_callid_t callid, ipc_call_t *call, int vp)
1646	palkovsky	1334	{
3707	decky	1335	bool handled = true;
		1336	int retval = EOK;
		1337	int i, nvp;
1646	palkovsky	1338	int newval;
3707	decky	1339
1646	palkovsky	1340	switch (IPC_GET_METHOD(*call)) {
		1341	case FB_ANIM_CREATE:
		1342	nvp = IPC_GET_ARG1(*call);
		1343	if (nvp == -1)
		1344	nvp = vp;
2025	jermar	1345	if (nvp >= MAX_VIEWPORTS \|\| nvp < 0 \|\|
		1346	!viewports[nvp].initialized) {
1646	palkovsky	1347	retval = EINVAL;
		1348	break;
		1349	}
2025	jermar	1350	for (i = 0; i < MAX_ANIMATIONS; i++) {
		1351	if (!animations[i].initialized)
1646	palkovsky	1352	break;
		1353	}
		1354	if (i == MAX_ANIMATIONS) {
		1355	retval = ELIMIT;
		1356	break;
		1357	}
		1358	animations[i].initialized = 1;
		1359	animations[i].animlen = 0;
		1360	animations[i].pos = 0;
		1361	animations[i].enabled = 0;
		1362	animations[i].vp = nvp;
		1363	retval = i;
		1364	break;
		1365	case FB_ANIM_DROP:
		1366	i = IPC_GET_ARG1(*call);
1720	palkovsky	1367	if (i >= MAX_ANIMATIONS \|\| i < 0) {
1646	palkovsky	1368	retval = EINVAL;
		1369	break;
		1370	}
		1371	animations[i].initialized = 0;
		1372	break;
		1373	case FB_ANIM_ADDPIXMAP:
		1374	i = IPC_GET_ARG1(*call);
2025	jermar	1375	if (i >= MAX_ANIMATIONS \|\| i < 0 \|\|
		1376	!animations[i].initialized) {
1646	palkovsky	1377	retval = EINVAL;
		1378	break;
		1379	}
		1380	if (animations[i].animlen == MAX_ANIM_LEN) {
		1381	retval = ELIMIT;
		1382	break;
		1383	}
		1384	newval = IPC_GET_ARG2(*call);
2025	jermar	1385	if (newval < 0 \|\| newval > MAX_PIXMAPS \|\|
		1386	!pixmaps[newval].data) {
1646	palkovsky	1387	retval = EINVAL;
		1388	break;
		1389	}
		1390	animations[i].pixmaps[animations[i].animlen++] = newval;
		1391	break;
		1392	case FB_ANIM_CHGVP:
		1393	i = IPC_GET_ARG1(*call);
		1394	if (i >= MAX_ANIMATIONS \|\| i < 0) {
		1395	retval = EINVAL;
		1396	break;
		1397	}
		1398	nvp = IPC_GET_ARG2(*call);
		1399	if (nvp == -1)
		1400	nvp = vp;
2025	jermar	1401	if (nvp >= MAX_VIEWPORTS \|\| nvp < 0 \|\|
		1402	!viewports[nvp].initialized) {
1646	palkovsky	1403	retval = EINVAL;
		1404	break;
		1405	}
		1406	animations[i].vp = nvp;
		1407	break;
		1408	case FB_ANIM_START:
		1409	case FB_ANIM_STOP:
		1410	i = IPC_GET_ARG1(*call);
		1411	if (i >= MAX_ANIMATIONS \|\| i < 0) {
		1412	retval = EINVAL;
		1413	break;
		1414	}
		1415	newval = (IPC_GET_METHOD(*call) == FB_ANIM_START);
		1416	if (newval ^ animations[i].enabled) {
		1417	animations[i].enabled = newval;
		1418	anims_enabled += newval ? 1 : -1;
		1419	}
		1420	break;
		1421	default:
		1422	handled = 0;
		1423	}
		1424	if (handled)
2619	jermar	1425	ipc_answer_0(callid, retval);
1646	palkovsky	1426	return handled;
		1427	}
		1428
3707	decky	1429
		1430	/** Handler for messages concerning pixmap handling
		1431	*
		1432	*/
		1433	static int pixmap_handle(ipc_callid_t callid, ipc_call_t *call, int vp)
1552	palkovsky	1434	{
3707	decky	1435	bool handled = true;
		1436	int retval = EOK;
		1437	int i, nvp;
		1438
1552	palkovsky	1439	switch (IPC_GET_METHOD(*call)) {
		1440	case FB_VP_DRAW_PIXMAP:
		1441	nvp = IPC_GET_ARG1(*call);
		1442	if (nvp == -1)
		1443	nvp = vp;
2025	jermar	1444	if (nvp < 0 \|\| nvp >= MAX_VIEWPORTS \|\|
		1445	!viewports[nvp].initialized) {
1552	palkovsky	1446	retval = EINVAL;
		1447	break;
		1448	}
		1449	i = IPC_GET_ARG2(*call);
		1450	retval = draw_pixmap(nvp, i);
		1451	break;
		1452	case FB_VP2PIXMAP:
		1453	nvp = IPC_GET_ARG1(*call);
		1454	if (nvp == -1)
		1455	nvp = vp;
2025	jermar	1456	if (nvp < 0 \|\| nvp >= MAX_VIEWPORTS \|\|
		1457	!viewports[nvp].initialized)
1552	palkovsky	1458	retval = EINVAL;
		1459	else
1711	palkovsky	1460	retval = save_vp_to_pixmap(&viewports[nvp]);
1552	palkovsky	1461	break;
		1462	case FB_DROP_PIXMAP:
		1463	i = IPC_GET_ARG1(*call);
		1464	if (i >= MAX_PIXMAPS) {
		1465	retval = EINVAL;
		1466	break;
		1467	}
		1468	if (pixmaps[i].data) {
		1469	free(pixmaps[i].data);
		1470	pixmaps[i].data = NULL;
		1471	}
		1472	break;
		1473	default:
		1474	handled = 0;
		1475	}
3707	decky	1476
1552	palkovsky	1477	if (handled)
2619	jermar	1478	ipc_answer_0(callid, retval);
1552	palkovsky	1479	return handled;
		1480
		1481	}
		1482
3767	svoboda	1483	static int rgb_from_style(attr_rgb_t *rgb, int style)
		1484	{
		1485	switch (style) {
		1486	case STYLE_NORMAL:
		1487	rgb->fg_color = color_table[COLOR_BLACK];
		1488	rgb->bg_color = color_table[COLOR_WHITE];
		1489	break;
		1490	case STYLE_EMPHASIS:
		1491	rgb->fg_color = color_table[COLOR_RED];
		1492	rgb->bg_color = color_table[COLOR_WHITE];
		1493	break;
		1494	default:
		1495	return EINVAL;
		1496	}
		1497
		1498	return EOK;
		1499	}
		1500
		1501	static int rgb_from_idx(attr_rgb_t *rgb, ipcarg_t fg_color,
		1502	ipcarg_t bg_color, ipcarg_t flags)
		1503	{
		1504	fg_color = (fg_color & 7) \| ((flags & CATTR_BRIGHT) ? 8 : 0);
		1505	bg_color = (bg_color & 7) \| ((flags & CATTR_BRIGHT) ? 8 : 0);
		1506
		1507	rgb->fg_color = color_table[fg_color];
		1508	rgb->bg_color = color_table[bg_color];
		1509
		1510	return EOK;
		1511	}
		1512
3792	svoboda	1513	static int rgb_from_attr(attr_rgb_t rgb, const attrs_t a)
		1514	{
		1515	int rc;
		1516
		1517	switch (a->t) {
		1518	case at_style:
		1519	rc = rgb_from_style(rgb, a->a.s.style);
		1520	break;
		1521	case at_idx:
		1522	rc = rgb_from_idx(rgb, a->a.i.fg_color,
		1523	a->a.i.bg_color, a->a.i.flags);
		1524	break;
		1525	case at_rgb:
		1526	*rgb = a->a.r;
		1527	rc = EOK;
		1528	break;
		1529	}
		1530
		1531	return rc;
		1532	}
		1533
3767	svoboda	1534	static int fb_set_style(viewport_t *vport, ipcarg_t style)
		1535	{
		1536	return rgb_from_style(&vport->attr, (int) style);
		1537	}
		1538
		1539	static int fb_set_color(viewport_t *vport, ipcarg_t fg_color,
		1540	ipcarg_t bg_color, ipcarg_t flags)
		1541	{
		1542	return rgb_from_idx(&vport->attr, fg_color, bg_color, flags);
		1543	}
		1544
1498	palkovsky	1545	/** Function for handling connections to FB
		1546	*
		1547	*/
3707	decky	1548	static void fb_client_connection(ipc_callid_t iid, ipc_call_t *icall)
1363	vana	1549	{
3707	decky	1550	unsigned int vp = 0;
		1551	viewport_t *vport = &viewports[vp];
		1552
1485	palkovsky	1553	if (client_connected) {
2619	jermar	1554	ipc_answer_0(iid, ELIMIT);
1485	palkovsky	1555	return;
		1556	}
3707	decky	1557
		1558	/* Accept connection */
		1559	client_connected = true;
		1560	ipc_answer_0(iid, EOK);
		1561
		1562	while (true) {
		1563	ipc_callid_t callid;
		1564	ipc_call_t call;
		1565	int retval;
		1566	unsigned int i;
		1567	int scroll;
4232	svoboda	1568	wchar_t ch;
4457	decky	1569	unsigned int col, row;
3707	decky	1570
		1571	if ((vport->cursor_active) \|\| (anims_enabled))
2070	jermar	1572	callid = async_get_call_timeout(&call, 250000);
1640	palkovsky	1573	else
		1574	callid = async_get_call(&call);
3707	decky	1575
1713	palkovsky	1576	mouse_hide();
1500	palkovsky	1577	if (!callid) {
1673	palkovsky	1578	cursor_blink(vport);
1646	palkovsky	1579	anims_tick();
1723	palkovsky	1580	mouse_show();
1500	palkovsky	1581	continue;
		1582	}
3707	decky	1583
1547	palkovsky	1584	if (shm_handle(callid, &call, vp))
		1585	continue;
3707	decky	1586
1552	palkovsky	1587	if (pixmap_handle(callid, &call, vp))
		1588	continue;
3707	decky	1589
1646	palkovsky	1590	if (anim_handle(callid, &call, vp))
		1591	continue;
3707	decky	1592
		1593	switch (IPC_GET_METHOD(call)) {
1485	palkovsky	1594	case IPC_M_PHONE_HUNGUP:
3707	decky	1595	client_connected = false;
		1596
		1597	/* Cleanup other viewports */
2025	jermar	1598	for (i = 1; i < MAX_VIEWPORTS; i++)
3707	decky	1599	vport->initialized = false;
		1600
		1601	/* Exit thread */
		1602	return;
		1603
1485	palkovsky	1604	case FB_PUTCHAR:
4232	svoboda	1605	ch = IPC_GET_ARG1(call);
4457	decky	1606	col = IPC_GET_ARG2(call);
		1607	row = IPC_GET_ARG3(call);
3707	decky	1608
		1609	if ((col >= vport->cols) \|\| (row >= vport->rows)) {
1485	palkovsky	1610	retval = EINVAL;
		1611	break;
		1612	}
2619	jermar	1613	ipc_answer_0(callid, EOK);
3707	decky	1614
4232	svoboda	1615	draw_char(vport, ch, col, row);
3707	decky	1616
		1617	/* Message already answered */
		1618	continue;
1485	palkovsky	1619	case FB_CLEAR:
3707	decky	1620	vport_clear(vport);
		1621	cursor_show(vport);
		1622	retval = EOK;
1485	palkovsky	1623	break;
3707	decky	1624	case FB_CURSOR_GOTO:
4457	decky	1625	col = IPC_GET_ARG1(call);
		1626	row = IPC_GET_ARG2(call);
3707	decky	1627
		1628	if ((col >= vport->cols) \|\| (row >= vport->rows)) {
1486	palkovsky	1629	retval = EINVAL;
		1630	break;
		1631	}
3707	decky	1632	retval = EOK;
		1633
1673	palkovsky	1634	cursor_hide(vport);
1486	palkovsky	1635	vport->cur_col = col;
		1636	vport->cur_row = row;
3707	decky	1637	cursor_show(vport);
		1638	break;
1486	palkovsky	1639	case FB_CURSOR_VISIBILITY:
1673	palkovsky	1640	cursor_hide(vport);
1500	palkovsky	1641	vport->cursor_active = IPC_GET_ARG1(call);
3707	decky	1642	cursor_show(vport);
		1643	retval = EOK;
1486	palkovsky	1644	break;
1485	palkovsky	1645	case FB_GET_CSIZE:
4457	decky	1646	ipc_answer_2(callid, EOK, vport->cols, vport->rows);
1485	palkovsky	1647	continue;
1486	palkovsky	1648	case FB_SCROLL:
3707	decky	1649	scroll = IPC_GET_ARG1(call);
		1650	if ((scroll > (int) vport->rows) \|\| (scroll < (-(int) vport->rows))) {
1486	palkovsky	1651	retval = EINVAL;
		1652	break;
		1653	}
1673	palkovsky	1654	cursor_hide(vport);
3707	decky	1655	vport_scroll(vport, scroll);
		1656	cursor_show(vport);
		1657	retval = EOK;
1486	palkovsky	1658	break;
		1659	case FB_VIEWPORT_SWITCH:
		1660	i = IPC_GET_ARG1(call);
3707	decky	1661	if (i >= MAX_VIEWPORTS) {
1486	palkovsky	1662	retval = EINVAL;
		1663	break;
		1664	}
3707	decky	1665	if (!viewports[i].initialized) {
1486	palkovsky	1666	retval = EADDRNOTAVAIL;
		1667	break;
		1668	}
1673	palkovsky	1669	cursor_hide(vport);
1486	palkovsky	1670	vp = i;
		1671	vport = &viewports[vp];
3707	decky	1672	cursor_show(vport);
		1673	retval = EOK;
1486	palkovsky	1674	break;
		1675	case FB_VIEWPORT_CREATE:
3707	decky	1676	retval = vport_create(IPC_GET_ARG1(call) >> 16,
2619	jermar	1677	IPC_GET_ARG1(call) & 0xffff,
		1678	IPC_GET_ARG2(call) >> 16,
		1679	IPC_GET_ARG2(call) & 0xffff);
1486	palkovsky	1680	break;
		1681	case FB_VIEWPORT_DELETE:
		1682	i = IPC_GET_ARG1(call);
3707	decky	1683	if (i >= MAX_VIEWPORTS) {
1486	palkovsky	1684	retval = EINVAL;
		1685	break;
		1686	}
3707	decky	1687	if (!viewports[i].initialized) {
1486	palkovsky	1688	retval = EADDRNOTAVAIL;
		1689	break;
		1690	}
3707	decky	1691	viewports[i].initialized = false;
		1692	if (viewports[i].bgpixel)
		1693	free(viewports[i].bgpixel);
		1694	if (viewports[i].backbuf)
		1695	free(viewports[i].backbuf);
		1696	retval = EOK;
1486	palkovsky	1697	break;
		1698	case FB_SET_STYLE:
3767	svoboda	1699	retval = fb_set_style(vport, IPC_GET_ARG1(call));
		1700	break;
		1701	case FB_SET_COLOR:
		1702	retval = fb_set_color(vport, IPC_GET_ARG1(call),
		1703	IPC_GET_ARG2(call), IPC_GET_ARG3(call));
		1704	break;
		1705	case FB_SET_RGB_COLOR:
		1706	vport->attr.fg_color = IPC_GET_ARG1(call);
		1707	vport->attr.bg_color = IPC_GET_ARG2(call);
3707	decky	1708	retval = EOK;
1486	palkovsky	1709	break;
		1710	case FB_GET_RESOLUTION:
2619	jermar	1711	ipc_answer_2(callid, EOK, screen.xres, screen.yres);
1486	palkovsky	1712	continue;
1707	palkovsky	1713	case FB_POINTER_MOVE:
3707	decky	1714	pointer_enabled = true;
1711	palkovsky	1715	mouse_move(IPC_GET_ARG1(call), IPC_GET_ARG2(call));
3707	decky	1716	retval = EOK;
1707	palkovsky	1717	break;
4326	svoboda	1718	case FB_SCREEN_YIELD:
		1719	case FB_SCREEN_RECLAIM:
4325	svoboda	1720	retval = EOK;
		1721	break;
1485	palkovsky	1722	default:
		1723	retval = ENOENT;
		1724	}
2619	jermar	1725	ipc_answer_0(callid, retval);
1363	vana	1726	}
1485	palkovsky	1727	}
1363	vana	1728
3707	decky	1729	/** Initialization of framebuffer
		1730	*
		1731	*/
		1732	int fb_init(void)
1485	palkovsky	1733	{
1490	palkovsky	1734	async_set_client_connection(fb_client_connection);
1485	palkovsky	1735
3707	decky	1736	void fb_ph_addr = (void ) sysinfo_value("fb.address.physical");
		1737	unsigned int fb_offset = sysinfo_value("fb.offset");
		1738	unsigned int fb_width = sysinfo_value("fb.width");
		1739	unsigned int fb_height = sysinfo_value("fb.height");
		1740	unsigned int fb_scanline = sysinfo_value("fb.scanline");
		1741	unsigned int fb_visual = sysinfo_value("fb.visual");
		1742
		1743	unsigned int fbsize = fb_scanline * fb_height;
		1744	void *fb_addr = as_get_mappable_page(fbsize);
		1745
3908	decky	1746	if (physmem_map(fb_ph_addr + fb_offset, fb_addr,
		1747	ALIGN_UP(fbsize, PAGE_SIZE) >> PAGE_WIDTH, AS_AREA_READ \| AS_AREA_WRITE) != 0)
		1748	return -1;
3707	decky	1749
		1750	if (screen_init(fb_addr, fb_width, fb_height, fb_scanline, fb_visual))
1993	decky	1751	return 0;
		1752
		1753	return -1;
1363	vana	1754	}
1490	palkovsky	1755
3707	decky	1756	/**
1649	cejka	1757	* @}
		1758	*/

Subversion Repositories HelenOS

(root)/trunk/uspace/srv/fb/fb.c/ @ 4316 – Rev 4548