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>
4594	decky	59	#include <stdio.h>
1505	palkovsky	60
1404	palkovsky	61	#include "font-8x16.h"
1363	vana	62	#include "fb.h"
1505	palkovsky	63	#include "main.h"
		64	#include "../console/screenbuffer.h"
1547	palkovsky	65	#include "ppm.h"
1363	vana	66
1711	palkovsky	67	#include "pointer.xbm"
		68	#include "pointer_mask.xbm"
		69
3707	decky	70	#define DEFAULT_BGCOLOR 0xf0f0f0
		71	#define DEFAULT_FGCOLOR 0x000000
1363	vana	72
4316	decky	73	#define GLYPH_UNAVAIL '?'
4226	svoboda	74
3707	decky	75	#define MAX_ANIM_LEN 8
		76	#define MAX_ANIMATIONS 4
		77	#define MAX_PIXMAPS 256 /*< Maximum number of saved pixmaps /
		78	#define MAX_VIEWPORTS 128 /*< Viewport is a rectangular area on the screen /
1363	vana	79
3744	svoboda	80	/** Function to render a pixel from a RGB value. */
3707	decky	81	typedef void (rgb_conv_t)(void , uint32_t);
1363	vana	82
4316	decky	83	/** Function to render a bit mask. */
		84	typedef void (mask_conv_t)(void , bool);
		85
3744	svoboda	86	/** Function to draw a glyph. */
		87	typedef void (*dg_t)(unsigned int x, unsigned int y, bool cursor,
4226	svoboda	88	uint8_t *glyphs, uint32_t glyph, uint32_t fg_color, uint32_t bg_color);
3744	svoboda	89
1485	palkovsky	90	struct {
3707	decky	91	uint8_t *fb_addr;
		92
1875	jermar	93	unsigned int xres;
		94	unsigned int yres;
3707	decky	95
1875	jermar	96	unsigned int scanline;
3707	decky	97	unsigned int glyphscanline;
		98
1875	jermar	99	unsigned int pixelbytes;
3707	decky	100	unsigned int glyphbytes;
4316	decky	101
4233	svoboda	102	/** Pre-rendered mask for rendering glyphs. Specific for the visual. */
		103	uint8_t *glyphs;
3707	decky	104
		105	rgb_conv_t rgb_conv;
4316	decky	106	mask_conv_t mask_conv;
1485	palkovsky	107	} screen;
1363	vana	108
3767	svoboda	109	/** Backbuffer character cell. */
1485	palkovsky	110	typedef struct {
4211	svoboda	111	uint32_t glyph;
3767	svoboda	112	uint32_t fg_color;
		113	uint32_t bg_color;
		114	} bb_cell_t;
		115
		116	typedef struct {
3707	decky	117	bool initialized;
		118	unsigned int x;
		119	unsigned int y;
		120	unsigned int width;
		121	unsigned int height;
		122
1485	palkovsky	123	/* Text support in window */
3707	decky	124	unsigned int cols;
		125	unsigned int rows;
		126
3744	svoboda	127	/*
		128	* Style and glyphs for text printing
		129	*/
4316	decky	130
3767	svoboda	131	/** Current attributes. */
		132	attr_rgb_t attr;
4316	decky	133
3707	decky	134	uint8_t *bgpixel;
4316	decky	135
4233	svoboda	136	/**
		137	* Glyph drawing function for this viewport. Different viewports
		138	* might use different drawing functions depending on whether their
		139	* scanlines are aligned on a word boundary.
		140	*/
3744	svoboda	141	dg_t dglyph;
3707	decky	142
1485	palkovsky	143	/* Auto-cursor position */
3707	decky	144	bool cursor_active;
		145	unsigned int cur_col;
		146	unsigned int cur_row;
		147	bool cursor_shown;
		148
		149	/* Back buffer */
3767	svoboda	150	bb_cell_t *backbuf;
3707	decky	151	unsigned int bbsize;
1485	palkovsky	152	} viewport_t;
1363	vana	153
1646	palkovsky	154	typedef struct {
3707	decky	155	bool initialized;
		156	bool enabled;
1646	palkovsky	157	unsigned int vp;
3707	decky	158
1646	palkovsky	159	unsigned int pos;
		160	unsigned int animlen;
		161	unsigned int pixmaps[MAX_ANIM_LEN];
		162	} animation_t;
3707	decky	163
1646	palkovsky	164	static animation_t animations[MAX_ANIMATIONS];
3707	decky	165	static bool anims_enabled;
1646	palkovsky	166
1552	palkovsky	167	typedef struct {
		168	unsigned int width;
		169	unsigned int height;
1781	jermar	170	uint8_t *data;
1552	palkovsky	171	} pixmap_t;
3707	decky	172
1552	palkovsky	173	static pixmap_t pixmaps[MAX_PIXMAPS];
1485	palkovsky	174	static viewport_t viewports[128];
		175
3707	decky	176	static bool client_connected = false; /*< Allow only 1 connection /
1485	palkovsky	177
3767	svoboda	178	static uint32_t color_table[16] = {
4316	decky	179	[COLOR_BLACK] = 0x000000,
		180	[COLOR_BLUE] = 0x0000f0,
		181	[COLOR_GREEN] = 0x00f000,
		182	[COLOR_CYAN] = 0x00f0f0,
		183	[COLOR_RED] = 0xf00000,
		184	[COLOR_MAGENTA] = 0xf000f0,
		185	[COLOR_YELLOW] = 0xf0f000,
		186	[COLOR_WHITE] = 0xf0f0f0,
		187
		188	[8 + COLOR_BLACK] = 0x000000,
		189	[8 + COLOR_BLUE] = 0x0000ff,
		190	[8 + COLOR_GREEN] = 0x00ff00,
		191	[8 + COLOR_CYAN] = 0x00ffff,
		192	[8 + COLOR_RED] = 0xff0000,
		193	[8 + COLOR_MAGENTA] = 0xff00ff,
		194	[8 + COLOR_YELLOW] = 0xffff00,
		195	[8 + COLOR_WHITE] = 0xffffff,
3767	svoboda	196	};
		197
3792	svoboda	198	static int rgb_from_attr(attr_rgb_t rgb, const attrs_t a);
3767	svoboda	199	static int rgb_from_style(attr_rgb_t *rgb, int style);
		200	static int rgb_from_idx(attr_rgb_t *rgb, ipcarg_t fg_color,
		201	ipcarg_t bg_color, ipcarg_t flags);
		202
		203	static int fb_set_color(viewport_t *vport, ipcarg_t fg_color,
		204	ipcarg_t bg_color, ipcarg_t attr);
		205
3744	svoboda	206	static void draw_glyph_aligned(unsigned int x, unsigned int y, bool cursor,
4211	svoboda	207	uint8_t *glyphs, uint32_t glyph, uint32_t fg_color, uint32_t bg_color);
3744	svoboda	208	static void draw_glyph_fallback(unsigned int x, unsigned int y, bool cursor,
4211	svoboda	209	uint8_t *glyphs, uint32_t glyph, uint32_t fg_color, uint32_t bg_color);
3744	svoboda	210
3739	svoboda	211	static void draw_vp_glyph(viewport_t *vport, bool cursor, unsigned int col,
3723	svoboda	212	unsigned int row);
		213
		214
3707	decky	215	#define RED(x, bits) ((x >> (8 + 8 + 8 - bits)) & ((1 << bits) - 1))
		216	#define GREEN(x, bits) ((x >> (8 + 8 - bits)) & ((1 << bits) - 1))
		217	#define BLUE(x, bits) ((x >> (8 - bits)) & ((1 << bits) - 1))
1363	vana	218
3707	decky	219	#define COL2X(col) ((col) * FONT_WIDTH)
		220	#define ROW2Y(row) ((row) * FONT_SCANLINES)
1363	vana	221
3707	decky	222	#define X2COL(x) ((x) / FONT_WIDTH)
		223	#define Y2ROW(y) ((y) / FONT_SCANLINES)
1363	vana	224
3707	decky	225	#define FB_POS(x, y) ((y) * screen.scanline + (x) * screen.pixelbytes)
		226	#define BB_POS(vport, col, row) ((row) * vport->cols + (col))
		227	#define GLYPH_POS(glyph, y, cursor) (((glyph) + (cursor) * FONT_GLYPHS) * screen.glyphbytes + (y) * screen.glyphscanline)
1875	jermar	228
1363	vana	229
3707	decky	230	/** ARGB 8:8:8:8 conversion
		231	*
		232	*/
		233	static void rgb_0888(void *dst, uint32_t rgb)
1363	vana	234	{
4316	decky	235	((uint32_t ) dst) = rgb & 0x00ffffff;
1363	vana	236	}
		237
4316	decky	238	static void mask_0888(void *dst, bool mask)
		239	{
		240	((uint32_t ) dst) = (mask ? 0x00ffffff : 0);
		241	}
1994	decky	242
4316	decky	243
3707	decky	244	/** ABGR 8:8:8:8 conversion
		245	*
		246	*/
		247	static void bgr_0888(void *dst, uint32_t rgb)
1994	decky	248	{
3707	decky	249	((uint32_t ) dst)
		250	= (BLUE(rgb, 8) << 16) \| (GREEN(rgb, 8) << 8) \| RED(rgb, 8);
1994	decky	251	}
		252
3707	decky	253
3882	decky	254	/** RGB 8:8:8 conversion
3707	decky	255	*
		256	*/
		257	static void rgb_888(void *dst, uint32_t rgb)
1363	vana	258	{
3710	decky	259	((uint8_t *) dst)[0] = BLUE(rgb, 8);
		260	((uint8_t *) dst)[1] = GREEN(rgb, 8);
		261	((uint8_t *) dst)[2] = RED(rgb, 8);
1363	vana	262	}
		263
4316	decky	264	static void mask_888(void *dst, bool mask)
		265	{
		266	if (mask) {
		267	((uint8_t *) dst)[0] = 0xff;
		268	((uint8_t *) dst)[1] = 0xff;
		269	((uint8_t *) dst)[2] = 0xff;
		270	} else {
		271	((uint8_t *) dst)[0] = 0;
		272	((uint8_t *) dst)[1] = 0;
		273	((uint8_t *) dst)[2] = 0;
		274	}
		275	}
1363	vana	276
4316	decky	277
3882	decky	278	/** BGR 8:8:8 conversion
		279	*
		280	*/
		281	static void bgr_888(void *dst, uint32_t rgb)
		282	{
		283	((uint8_t *) dst)[0] = RED(rgb, 8);
		284	((uint8_t *) dst)[1] = GREEN(rgb, 8);
		285	((uint8_t *) dst)[2] = BLUE(rgb, 8);
		286	}
		287
		288
3707	decky	289	/** RGB 5:5:5 conversion
		290	*
		291	*/
		292	static void rgb_555(void *dst, uint32_t rgb)
1993	decky	293	{
3707	decky	294	((uint16_t ) dst)
		295	= (RED(rgb, 5) << 10) \| (GREEN(rgb, 5) << 5) \| BLUE(rgb, 5);
1993	decky	296	}
		297
4316	decky	298	static void mask_555(void *dst, bool mask)
		299	{
		300	((uint16_t ) dst) = (mask ? 0x7fff : 0);
		301	}
1993	decky	302
4316	decky	303
3707	decky	304	/** RGB 5:6:5 conversion
		305	*
		306	*/
		307	static void rgb_565(void *dst, uint32_t rgb)
1363	vana	308	{
3707	decky	309	((uint16_t ) dst)
		310	= (RED(rgb, 5) << 11) \| (GREEN(rgb, 6) << 5) \| BLUE(rgb, 5);
1363	vana	311	}
		312
4316	decky	313	static void mask_565(void *dst, bool mask)
		314	{
		315	((uint16_t ) dst) = (mask ? 0xffff : 0);
		316	}
1363	vana	317
4316	decky	318
3707	decky	319	/** RGB 3:2:3
		320	*
		321	*/
		322	static void rgb_323(void *dst, uint32_t rgb)
1363	vana	323	{
3707	decky	324	((uint8_t ) dst)
		325	= ~((RED(rgb, 3) << 5) \| (GREEN(rgb, 2) << 3) \| BLUE(rgb, 3));
1363	vana	326	}
		327
4316	decky	328	static void mask_323(void *dst, bool mask)
		329	{
		330	((uint8_t ) dst) = (mask ? 0xff : 0);
		331	}
		332
3725	svoboda	333	/** Draw a filled rectangle.
		334	*
		335	* @note Need real implementation that does not access VRAM twice.
4316	decky	336	*
3725	svoboda	337	*/
3723	svoboda	338	static void draw_filled_rect(unsigned int x0, unsigned int y0, unsigned int x1,
		339	unsigned int y1, uint32_t color)
		340	{
4316	decky	341	unsigned int x;
		342	unsigned int y;
3725	svoboda	343	unsigned int copy_bytes;
4316	decky	344
		345	uint8_t *sp;
		346	uint8_t *dp;
3723	svoboda	347	uint8_t cbuf[4];
4316	decky	348
		349	if ((y0 >= y1) \|\| (x0 >= x1))
		350	return;
		351
3723	svoboda	352	screen.rgb_conv(cbuf, color);
4316	decky	353
3725	svoboda	354	sp = &screen.fb_addr[FB_POS(x0, y0)];
		355	dp = sp;
4316	decky	356
3725	svoboda	357	/* Draw the first line. */
		358	for (x = x0; x < x1; x++) {
		359	memcpy(dp, cbuf, screen.pixelbytes);
		360	dp += screen.pixelbytes;
3723	svoboda	361	}
4316	decky	362
3725	svoboda	363	dp = sp + screen.scanline;
		364	copy_bytes = (x1 - x0) * screen.pixelbytes;
4316	decky	365
3725	svoboda	366	/* Draw the remaining lines by copying. */
		367	for (y = y0 + 1; y < y1; y++) {
		368	memcpy(dp, sp, copy_bytes);
		369	dp += screen.scanline;
		370	}
3723	svoboda	371	}
		372
		373	/** Redraw viewport.
1498	palkovsky	374	*
3707	decky	375	* @param vport Viewport to redraw
		376	*
1498	palkovsky	377	*/
3707	decky	378	static void vport_redraw(viewport_t *vport)
1485	palkovsky	379	{
4457	decky	380	unsigned int col;
4316	decky	381	unsigned int row;
		382
3707	decky	383	for (row = 0; row < vport->rows; row++) {
3723	svoboda	384	for (col = 0; col < vport->cols; col++) {
3739	svoboda	385	draw_vp_glyph(vport, false, col, row);
3707	decky	386	}
1672	palkovsky	387	}
4316	decky	388
3707	decky	389	if (COL2X(vport->cols) < vport->width) {
3723	svoboda	390	draw_filled_rect(
		391	vport->x + COL2X(vport->cols), vport->y,
		392	vport->x + vport->width, vport->y + vport->height,
3767	svoboda	393	vport->attr.bg_color);
1672	palkovsky	394	}
4316	decky	395
3707	decky	396	if (ROW2Y(vport->rows) < vport->height) {
3723	svoboda	397	draw_filled_rect(
		398	vport->x, vport->y + ROW2Y(vport->rows),
		399	vport->x + vport->width, vport->y + vport->height,
3767	svoboda	400	vport->attr.bg_color);
1672	palkovsky	401	}
1559	palkovsky	402	}
		403
3767	svoboda	404	static void backbuf_clear(bb_cell_t *backbuf, size_t len, uint32_t fg_color,
		405	uint32_t bg_color)
		406	{
4316	decky	407	size_t i;
		408
3767	svoboda	409	for (i = 0; i < len; i++) {
		410	backbuf[i].glyph = 0;
		411	backbuf[i].fg_color = fg_color;
		412	backbuf[i].bg_color = bg_color;
		413	}
		414	}
		415
3724	svoboda	416	/** Clear viewport.
3707	decky	417	*
		418	* @param vport Viewport to clear
		419	*
		420	*/
		421	static void vport_clear(viewport_t *vport)
1363	vana	422	{
3767	svoboda	423	backbuf_clear(vport->backbuf, vport->cols * vport->rows,
		424	vport->attr.fg_color, vport->attr.bg_color);
3707	decky	425	vport_redraw(vport);
1363	vana	426	}
		427
3724	svoboda	428	/** Scroll viewport by the specified number of lines.
1485	palkovsky	429	*
1709	jermar	430	* @param vport Viewport to scroll
3707	decky	431	* @param lines Number of lines to scroll
		432	*
1485	palkovsky	433	*/
3707	decky	434	static void vport_scroll(viewport_t *vport, int lines)
1363	vana	435	{
4457	decky	436	unsigned int col;
4316	decky	437	unsigned int row;
		438	unsigned int x;
		439	unsigned int y;
4232	svoboda	440	uint32_t glyph;
3767	svoboda	441	uint32_t fg_color;
		442	uint32_t bg_color;
4316	decky	443	bb_cell_t *bbp;
		444	bb_cell_t *xbp;
		445
3724	svoboda	446	/*
3739	svoboda	447	* Redraw.
		448	*/
4316	decky	449
3739	svoboda	450	y = vport->y;
		451	for (row = 0; row < vport->rows; row++) {
		452	x = vport->x;
		453	for (col = 0; col < vport->cols; col++) {
4548	svoboda	454	if (((int) row + lines >= 0) &&
		455	((int) row + lines < (int) vport->rows)) {
3767	svoboda	456	xbp = &vport->backbuf[BB_POS(vport, col, row + lines)];
		457	bbp = &vport->backbuf[BB_POS(vport, col, row)];
4316	decky	458
3767	svoboda	459	glyph = xbp->glyph;
		460	fg_color = xbp->fg_color;
		461	bg_color = xbp->bg_color;
4316	decky	462
		463	if ((bbp->glyph == glyph)
		464	&& (bbp->fg_color == xbp->fg_color)
		465	&& (bbp->bg_color == xbp->bg_color)) {
3739	svoboda	466	x += FONT_WIDTH;
		467	continue;
		468	}
		469	} else {
		470	glyph = 0;
3767	svoboda	471	fg_color = vport->attr.fg_color;
		472	bg_color = vport->attr.bg_color;
3739	svoboda	473	}
4316	decky	474
4233	svoboda	475	(*vport->dglyph)(x, y, false, screen.glyphs, glyph,
3767	svoboda	476	fg_color, bg_color);
3739	svoboda	477	x += FONT_WIDTH;
		478	}
		479	y += FONT_SCANLINES;
		480	}
4316	decky	481
3739	svoboda	482	/*
3724	svoboda	483	* Scroll backbuffer.
		484	*/
4316	decky	485
1672	palkovsky	486	if (lines > 0) {
3739	svoboda	487	memmove(vport->backbuf, vport->backbuf + vport->cols * lines,
3767	svoboda	488	vport->cols * (vport->rows - lines) * sizeof(bb_cell_t));
		489	backbuf_clear(&vport->backbuf[BB_POS(vport, 0, vport->rows - lines)],
		490	vport->cols * lines, vport->attr.fg_color, vport->attr.bg_color);
3707	decky	491	} else {
3739	svoboda	492	memmove(vport->backbuf - vport->cols * lines, vport->backbuf,
3767	svoboda	493	vport->cols * (vport->rows + lines) * sizeof(bb_cell_t));
		494	backbuf_clear(vport->backbuf, - vport->cols * lines,
		495	vport->attr.fg_color, vport->attr.bg_color);
1672	palkovsky	496	}
		497	}
		498
3707	decky	499	/** Render glyphs
1558	palkovsky	500	*
3707	decky	501	* Convert glyphs from device independent font
		502	* description to current visual representation.
4316	decky	503	*
1558	palkovsky	504	*/
4233	svoboda	505	static void render_glyphs(void)
1363	vana	506	{
3707	decky	507	unsigned int glyph;
4316	decky	508
3707	decky	509	for (glyph = 0; glyph < FONT_GLYPHS; glyph++) {
		510	unsigned int y;
4316	decky	511
3707	decky	512	for (y = 0; y < FONT_SCANLINES; y++) {
		513	unsigned int x;
4316	decky	514
3707	decky	515	for (x = 0; x < FONT_WIDTH; x++) {
4316	decky	516	screen.mask_conv(&screen.glyphs[GLYPH_POS(glyph, y, false) + x * screen.pixelbytes],
4322	decky	517	(fb_font[glyph][y] & (1 << (7 - x))) ? true : false);
4316	decky	518
		519	screen.mask_conv(&screen.glyphs[GLYPH_POS(glyph, y, true) + x * screen.pixelbytes],
4322	decky	520	(fb_font[glyph][y] & (1 << (7 - x))) ? false : true);
3707	decky	521	}
1509	palkovsky	522	}
		523	}
1363	vana	524	}
		525
1485	palkovsky	526	/** Create new viewport
1363	vana	527	*
3707	decky	528	* @param x Origin of the viewport (x).
		529	* @param y Origin of the viewport (y).
		530	* @param width Width of the viewport.
		531	* @param height Height of the viewport.
		532	*
		533	* @return New viewport number.
		534	*
1363	vana	535	*/
3707	decky	536	static int vport_create(unsigned int x, unsigned int y,
		537	unsigned int width, unsigned int height)
1363	vana	538	{
3707	decky	539	unsigned int i;
		540
2070	jermar	541	for (i = 0; i < MAX_VIEWPORTS; i++) {
1485	palkovsky	542	if (!viewports[i].initialized)
1363	vana	543	break;
		544	}
4316	decky	545
1485	palkovsky	546	if (i == MAX_VIEWPORTS)
		547	return ELIMIT;
3707	decky	548
		549	unsigned int cols = width / FONT_WIDTH;
		550	unsigned int rows = height / FONT_SCANLINES;
3767	svoboda	551	unsigned int bbsize = cols * rows * sizeof(bb_cell_t);
3744	svoboda	552	unsigned int word_size = sizeof(unsigned long);
3707	decky	553
3767	svoboda	554	bb_cell_t backbuf = (bb_cell_t ) malloc(bbsize);
3707	decky	555	if (!backbuf)
		556	return ENOMEM;
		557
		558	uint8_t bgpixel = (uint8_t ) malloc(screen.pixelbytes);
		559	if (!bgpixel) {
		560	free(backbuf);
		561	return ENOMEM;
		562	}
4316	decky	563
3767	svoboda	564	backbuf_clear(backbuf, cols * rows, DEFAULT_FGCOLOR, DEFAULT_BGCOLOR);
3707	decky	565	memset(bgpixel, 0, screen.pixelbytes);
		566
1485	palkovsky	567	viewports[i].x = x;
		568	viewports[i].y = y;
		569	viewports[i].width = width;
		570	viewports[i].height = height;
1363	vana	571
3707	decky	572	viewports[i].cols = cols;
		573	viewports[i].rows = rows;
		574
3767	svoboda	575	viewports[i].attr.bg_color = DEFAULT_BGCOLOR;
		576	viewports[i].attr.fg_color = DEFAULT_FGCOLOR;
1363	vana	577
3707	decky	578	viewports[i].bgpixel = bgpixel;
4316	decky	579
3744	svoboda	580	/*
4316	decky	581	* Conditions necessary to select aligned version:
		582	* - word size is divisible by pixelbytes
		583	* - cell scanline size is divisible by word size
		584	* - cell scanlines are word-aligned
3744	svoboda	585	*
		586	*/
4316	decky	587	if (((word_size % screen.pixelbytes) == 0)
		588	&& ((FONT_WIDTH * screen.pixelbytes) % word_size == 0)
		589	&& ((x * screen.pixelbytes) % word_size == 0)
		590	&& (screen.scanline % word_size == 0)) {
3744	svoboda	591	viewports[i].dglyph = draw_glyph_aligned;
		592	} else {
		593	viewports[i].dglyph = draw_glyph_fallback;
		594	}
4316	decky	595
1489	palkovsky	596	viewports[i].cur_col = 0;
		597	viewports[i].cur_row = 0;
3707	decky	598	viewports[i].cursor_active = false;
		599	viewports[i].cursor_shown = false;
		600
		601	viewports[i].bbsize = bbsize;
		602	viewports[i].backbuf = backbuf;
		603
		604	viewports[i].initialized = true;
		605
4233	svoboda	606	screen.rgb_conv(viewports[i].bgpixel, viewports[i].attr.bg_color);
3707	decky	607
1485	palkovsky	608	return i;
1363	vana	609	}
		610
3707	decky	611
1363	vana	612	/** Initialize framebuffer as a chardev output device
		613	*
3707	decky	614	* @param addr Address of the framebuffer
		615	* @param xres Screen width in pixels
		616	* @param yres Screen height in pixels
		617	* @param visual Bits per pixel (8, 16, 24, 32)
		618	* @param scan Bytes per one scanline
1363	vana	619	*
		620	*/
3707	decky	621	static bool screen_init(void *addr, unsigned int xres, unsigned int yres,
		622	unsigned int scan, unsigned int visual)
1363	vana	623	{
4316	decky	624
		625
1993	decky	626	switch (visual) {
		627	case VISUAL_INDIRECT_8:
3707	decky	628	screen.rgb_conv = rgb_323;
4316	decky	629	screen.mask_conv = mask_323;
1886	jermar	630	screen.pixelbytes = 1;
		631	break;
1993	decky	632	case VISUAL_RGB_5_5_5:
3707	decky	633	screen.rgb_conv = rgb_555;
4316	decky	634	screen.mask_conv = mask_555;
1886	jermar	635	screen.pixelbytes = 2;
		636	break;
1993	decky	637	case VISUAL_RGB_5_6_5:
3707	decky	638	screen.rgb_conv = rgb_565;
4316	decky	639	screen.mask_conv = mask_565;
1993	decky	640	screen.pixelbytes = 2;
1886	jermar	641	break;
1993	decky	642	case VISUAL_RGB_8_8_8:
3707	decky	643	screen.rgb_conv = rgb_888;
4316	decky	644	screen.mask_conv = mask_888;
1993	decky	645	screen.pixelbytes = 3;
		646	break;
3882	decky	647	case VISUAL_BGR_8_8_8:
		648	screen.rgb_conv = bgr_888;
4316	decky	649	screen.mask_conv = mask_888;
3882	decky	650	screen.pixelbytes = 3;
		651	break;
1993	decky	652	case VISUAL_RGB_8_8_8_0:
3707	decky	653	screen.rgb_conv = rgb_888;
4316	decky	654	screen.mask_conv = mask_888;
1886	jermar	655	screen.pixelbytes = 4;
		656	break;
1993	decky	657	case VISUAL_RGB_0_8_8_8:
3707	decky	658	screen.rgb_conv = rgb_0888;
4316	decky	659	screen.mask_conv = mask_0888;
1993	decky	660	screen.pixelbytes = 4;
		661	break;
1994	decky	662	case VISUAL_BGR_0_8_8_8:
3707	decky	663	screen.rgb_conv = bgr_0888;
4316	decky	664	screen.mask_conv = mask_0888;
1994	decky	665	screen.pixelbytes = 4;
		666	break;
1993	decky	667	default:
		668	return false;
1363	vana	669	}
4316	decky	670
3707	decky	671	screen.fb_addr = (unsigned char *) addr;
1485	palkovsky	672	screen.xres = xres;
		673	screen.yres = yres;
		674	screen.scanline = scan;
1363	vana	675
3707	decky	676	screen.glyphscanline = FONT_WIDTH * screen.pixelbytes;
		677	screen.glyphbytes = screen.glyphscanline * FONT_SCANLINES;
4316	decky	678
		679	size_t glyphsize = 2 * FONT_GLYPHS * screen.glyphbytes;
		680	uint8_t glyphs = (uint8_t ) malloc(glyphsize);
4233	svoboda	681	if (!glyphs)
		682	return false;
3707	decky	683
4233	svoboda	684	memset(glyphs, 0, glyphsize);
		685	screen.glyphs = glyphs;
4316	decky	686
4233	svoboda	687	render_glyphs();
		688
1485	palkovsky	689	/* Create first viewport */
3707	decky	690	vport_create(0, 0, xres, yres);
1993	decky	691
		692	return true;
1485	palkovsky	693	}
1363	vana	694
3707	decky	695
3744	svoboda	696	/** Draw a glyph, takes advantage of alignment.
3707	decky	697	*
3744	svoboda	698	* This version can only be used if the following conditions are met:
3739	svoboda	699	*
3744	svoboda	700	* - word size is divisible by pixelbytes
		701	* - cell scanline size is divisible by word size
		702	* - cell scanlines are word-aligned
		703	*
		704	* It makes use of the pre-rendered mask to process (possibly) several
		705	* pixels at once (word size / pixelbytes pixels at a time are processed)
		706	* making it very fast. Most notably this version is not applicable at 24 bits
		707	* per pixel.
		708	*
4316	decky	709	* @param x x coordinate of top-left corner on screen.
		710	* @param y y coordinate of top-left corner on screen.
		711	* @param cursor Draw glyph with cursor
		712	* @param glyphs Pointer to font bitmap.
		713	* @param glyph Code of the glyph to draw.
		714	* @param fg_color Foreground color.
		715	* @param bg_color Backgroudn color.
		716	*
3739	svoboda	717	*/
3744	svoboda	718	static void draw_glyph_aligned(unsigned int x, unsigned int y, bool cursor,
4211	svoboda	719	uint8_t *glyphs, uint32_t glyph, uint32_t fg_color, uint32_t bg_color)
3739	svoboda	720	{
4316	decky	721	unsigned int i;
		722	unsigned int yd;
		723	unsigned long fg_buf;
		724	unsigned long bg_buf;
3744	svoboda	725	unsigned long mask;
4316	decky	726
3744	svoboda	727	/*
		728	* Prepare a pair of words, one filled with foreground-color
		729	* pattern and the other filled with background-color pattern.
		730	*/
		731	for (i = 0; i < sizeof(unsigned long) / screen.pixelbytes; i++) {
4316	decky	732	screen.rgb_conv(&((uint8_t ) &fg_buf)[i screen.pixelbytes],
3744	svoboda	733	fg_color);
4316	decky	734	screen.rgb_conv(&((uint8_t ) &bg_buf)[i screen.pixelbytes],
3744	svoboda	735	bg_color);
		736	}
4316	decky	737
3744	svoboda	738	/* Pointer to the current position in the mask. */
4316	decky	739	unsigned long maskp = (unsigned long ) &glyphs[GLYPH_POS(glyph, 0, cursor)];
		740
3744	svoboda	741	/* Pointer to the current position on the screen. */
4316	decky	742	unsigned long dp = (unsigned long ) &screen.fb_addr[FB_POS(x, y)];
		743
3744	svoboda	744	/* Width of the character cell in words. */
4316	decky	745	unsigned int ww = FONT_WIDTH * screen.pixelbytes / sizeof(unsigned long);
		746
3744	svoboda	747	/* Offset to add when moving to another screen scanline. */
4316	decky	748	unsigned int d_add = screen.scanline - FONT_WIDTH * screen.pixelbytes;
		749
3744	svoboda	750	for (yd = 0; yd < FONT_SCANLINES; yd++) {
		751	/*
		752	* Now process the cell scanline, combining foreground
		753	* and background color patters using the pre-rendered mask.
		754	*/
		755	for (i = 0; i < ww; i++) {
		756	mask = *maskp++;
		757	*dp++ = (fg_buf & mask) \| (bg_buf & ~mask);
		758	}
4316	decky	759
3744	svoboda	760	/* Move to the beginning of the next scanline of the cell. */
		761	dp = (unsigned long ) ((uint8_t ) dp + d_add);
		762	}
3739	svoboda	763	}
		764
3744	svoboda	765	/** Draw a glyph, fallback version.
		766	*
		767	* This version does not make use of the pre-rendered mask, it uses
		768	* the font bitmap directly. It works always, but it is slower.
		769	*
4316	decky	770	* @param x x coordinate of top-left corner on screen.
		771	* @param y y coordinate of top-left corner on screen.
		772	* @param cursor Draw glyph with cursor
		773	* @param glyphs Pointer to font bitmap.
		774	* @param glyph Code of the glyph to draw.
		775	* @param fg_color Foreground color.
		776	* @param bg_color Backgroudn color.
		777	*
3744	svoboda	778	*/
		779	void draw_glyph_fallback(unsigned int x, unsigned int y, bool cursor,
4211	svoboda	780	uint8_t *glyphs, uint32_t glyph, uint32_t fg_color, uint32_t bg_color)
3744	svoboda	781	{
4316	decky	782	unsigned int i;
		783	unsigned int j;
		784	unsigned int yd;
		785	uint8_t fg_buf[4];
		786	uint8_t bg_buf[4];
		787	uint8_t *sp;
3744	svoboda	788	uint8_t b;
4316	decky	789
3744	svoboda	790	/* Pre-render 1x the foreground and background color pixels. */
		791	if (cursor) {
		792	screen.rgb_conv(fg_buf, bg_color);
		793	screen.rgb_conv(bg_buf, fg_color);
		794	} else {
		795	screen.rgb_conv(fg_buf, fg_color);
		796	screen.rgb_conv(bg_buf, bg_color);
		797	}
4316	decky	798
3744	svoboda	799	/* Pointer to the current position on the screen. */
4316	decky	800	uint8_t dp = (uint8_t ) &screen.fb_addr[FB_POS(x, y)];
		801
3744	svoboda	802	/* Offset to add when moving to another screen scanline. */
4316	decky	803	unsigned int d_add = screen.scanline - FONT_WIDTH * screen.pixelbytes;
		804
3744	svoboda	805	for (yd = 0; yd < FONT_SCANLINES; yd++) {
		806	/* Byte containing bits of the glyph scanline. */
4232	svoboda	807	b = fb_font[glyph][yd];
4316	decky	808
3744	svoboda	809	for (i = 0; i < FONT_WIDTH; i++) {
		810	/* Choose color based on the current bit. */
		811	sp = (b & 0x80) ? fg_buf : bg_buf;
4316	decky	812
3744	svoboda	813	/* Copy the pixel. */
		814	for (j = 0; j < screen.pixelbytes; j++) {
		815	dp++ = sp++;
		816	}
4316	decky	817
3744	svoboda	818	/* Move to the next bit. */
		819	b = b << 1;
		820	}
		821
		822	/* Move to the beginning of the next scanline of the cell. */
		823	dp += d_add;
		824	}
		825	}
		826
4316	decky	827	/** Draw glyph at specified position in viewport.
3739	svoboda	828	*
3707	decky	829	* @param vport Viewport identification
		830	* @param cursor Draw glyph with cursor
		831	* @param col Screen position relative to viewport
		832	* @param row Screen position relative to viewport
		833	*
		834	*/
3739	svoboda	835	static void draw_vp_glyph(viewport_t *vport, bool cursor, unsigned int col,
		836	unsigned int row)
1500	palkovsky	837	{
3707	decky	838	unsigned int x = vport->x + COL2X(col);
		839	unsigned int y = vport->y + ROW2Y(row);
		840
4316	decky	841	uint32_t glyph = vport->backbuf[BB_POS(vport, col, row)].glyph;
		842	uint32_t fg_color = vport->backbuf[BB_POS(vport, col, row)].fg_color;
		843	uint32_t bg_color = vport->backbuf[BB_POS(vport, col, row)].bg_color;
		844
4233	svoboda	845	(*vport->dglyph)(x, y, cursor, screen.glyphs, glyph,
3767	svoboda	846	fg_color, bg_color);
3707	decky	847	}
		848
		849	/** Hide cursor if it is shown
		850	*
		851	*/
		852	static void cursor_hide(viewport_t *vport)
		853	{
		854	if ((vport->cursor_active) && (vport->cursor_shown)) {
3739	svoboda	855	draw_vp_glyph(vport, false, vport->cur_col, vport->cur_row);
3707	decky	856	vport->cursor_shown = false;
1500	palkovsky	857	}
		858	}
		859
3707	decky	860
		861	/** Show cursor if cursor showing is enabled
		862	*
		863	*/
		864	static void cursor_show(viewport_t *vport)
1500	palkovsky	865	{
		866	/* Do not check for cursor_shown */
		867	if (vport->cursor_active) {
3739	svoboda	868	draw_vp_glyph(vport, true, vport->cur_col, vport->cur_row);
3707	decky	869	vport->cursor_shown = true;
1500	palkovsky	870	}
		871	}
		872
3707	decky	873
		874	/** Invert cursor, if it is enabled
		875	*
		876	*/
		877	static void cursor_blink(viewport_t *vport)
1500	palkovsky	878	{
		879	if (vport->cursor_shown)
1673	palkovsky	880	cursor_hide(vport);
1500	palkovsky	881	else
3707	decky	882	cursor_show(vport);
1500	palkovsky	883	}
		884
3707	decky	885
		886	/** Draw character at given position relative to viewport
		887	*
		888	* @param vport Viewport identification
		889	* @param c Character to draw
		890	* @param col Screen position relative to viewport
		891	* @param row Screen position relative to viewport
		892	*
1498	palkovsky	893	*/
4211	svoboda	894	static void draw_char(viewport_t *vport, wchar_t c, unsigned int col, unsigned int row)
1486	palkovsky	895	{
3767	svoboda	896	bb_cell_t *bbp;
4316	decky	897
3707	decky	898	/* Do not hide cursor if we are going to overwrite it */
		899	if ((vport->cursor_active) && (vport->cursor_shown) &&
		900	((vport->cur_col != col) \|\| (vport->cur_row != row)))
		901	cursor_hide(vport);
4316	decky	902
3767	svoboda	903	bbp = &vport->backbuf[BB_POS(vport, col, row)];
4232	svoboda	904	bbp->glyph = fb_font_glyph(c);
3767	svoboda	905	bbp->fg_color = vport->attr.fg_color;
		906	bbp->bg_color = vport->attr.bg_color;
4316	decky	907
3739	svoboda	908	draw_vp_glyph(vport, false, col, row);
3707	decky	909
1489	palkovsky	910	vport->cur_col = col;
		911	vport->cur_row = row;
3707	decky	912
1489	palkovsky	913	vport->cur_col++;
2025	jermar	914	if (vport->cur_col >= vport->cols) {
1489	palkovsky	915	vport->cur_col = 0;
		916	vport->cur_row++;
		917	if (vport->cur_row >= vport->rows)
		918	vport->cur_row--;
1486	palkovsky	919	}
3707	decky	920
		921	cursor_show(vport);
1486	palkovsky	922	}
		923
4167	svoboda	924	/** Draw text data to viewport.
1552	palkovsky	925	*
1709	jermar	926	* @param vport Viewport id
4167	svoboda	927	* @param data Text data.
4316	decky	928	* @param x Leftmost column of the area.
		929	* @param y Topmost row of the area.
		930	* @param w Number of rows.
		931	* @param h Number of columns.
		932	*
1552	palkovsky	933	*/
4167	svoboda	934	static void draw_text_data(viewport_t vport, keyfield_t data, unsigned int x,
		935	unsigned int y, unsigned int w, unsigned int h)
1505	palkovsky	936	{
4316	decky	937	unsigned int i;
		938	unsigned int j;
3767	svoboda	939	bb_cell_t *bbp;
		940	attrs_t *a;
		941	attr_rgb_t rgb;
4316	decky	942
4167	svoboda	943	for (j = 0; j < h; j++) {
		944	for (i = 0; i < w; i++) {
		945	unsigned int col = x + i;
		946	unsigned int row = y + j;
4316	decky	947
4167	svoboda	948	bbp = &vport->backbuf[BB_POS(vport, col, row)];
4316	decky	949
4167	svoboda	950	a = &data[j * w + i].attrs;
		951	rgb_from_attr(&rgb, a);
4316	decky	952
4232	svoboda	953	bbp->glyph = fb_font_glyph(data[j * w + i].character);
4167	svoboda	954	bbp->fg_color = rgb.fg_color;
		955	bbp->bg_color = rgb.bg_color;
4316	decky	956
4167	svoboda	957	draw_vp_glyph(vport, false, col, row);
		958	}
1505	palkovsky	959	}
3707	decky	960	cursor_show(vport);
1505	palkovsky	961	}
		962
3707	decky	963
		964	static void putpixel_pixmap(void *data, unsigned int x, unsigned int y, uint32_t color)
1555	palkovsky	965	{
3707	decky	966	int pm = ((int ) data);
		967	pixmap_t *pmap = &pixmaps[pm];
		968	unsigned int pos = (y * pmap->width + x) * screen.pixelbytes;
1555	palkovsky	969
3707	decky	970	screen.rgb_conv(&pmap->data[pos], color);
		971	}
		972
		973
		974	static void putpixel(void *data, unsigned int x, unsigned int y, uint32_t color)
		975	{
		976	viewport_t vport = (viewport_t ) data;
		977	unsigned int dx = vport->x + x;
		978	unsigned int dy = vport->y + y;
		979
		980	screen.rgb_conv(&screen.fb_addr[FB_POS(dx, dy)], color);
		981	}
		982
		983
		984	/** Return first free pixmap
		985	*
		986	*/
		987	static int find_free_pixmap(void)
		988	{
		989	unsigned int i;
		990
		991	for (i = 0; i < MAX_PIXMAPS; i++)
1555	palkovsky	992	if (!pixmaps[i].data)
		993	return i;
3707	decky	994
1555	palkovsky	995	return -1;
		996	}
		997
		998
3707	decky	999	/** Create a new pixmap and return appropriate ID
		1000	*
		1001	*/
		1002	static int shm2pixmap(unsigned char *shm, size_t size)
1555	palkovsky	1003	{
		1004	int pm;
		1005	pixmap_t *pmap;
3707	decky	1006
1555	palkovsky	1007	pm = find_free_pixmap();
		1008	if (pm == -1)
		1009	return ELIMIT;
3707	decky	1010
1555	palkovsky	1011	pmap = &pixmaps[pm];
		1012
		1013	if (ppm_get_data(shm, size, &pmap->width, &pmap->height))
		1014	return EINVAL;
		1015
		1016	pmap->data = malloc(pmap->width * pmap->height * screen.pixelbytes);
		1017	if (!pmap->data)
		1018	return ENOMEM;
3707	decky	1019
		1020	ppm_draw(shm, size, 0, 0, pmap->width, pmap->height, putpixel_pixmap, (void *) &pm);
		1021
1555	palkovsky	1022	return pm;
		1023	}
		1024
3707	decky	1025
1552	palkovsky	1026	/** Handle shared memory communication calls
		1027	*
		1028	* Protocol for drawing pixmaps:
		1029	* - FB_PREPARE_SHM(client shm identification)
2025	jermar	1030	* - IPC_M_AS_AREA_SEND
3707	decky	1031	* - FB_DRAW_PPM(startx, starty)
1552	palkovsky	1032	* - FB_DROP_SHM
		1033	*
		1034	* Protocol for text drawing
2025	jermar	1035	* - IPC_M_AS_AREA_SEND
1552	palkovsky	1036	* - FB_DRAW_TEXT_DATA
		1037	*
		1038	* @param callid Callid of the current call
3707	decky	1039	* @param call Current call data
		1040	* @param vp Active viewport
1552	palkovsky	1041	*
3707	decky	1042	* @return false if the call was not handled byt this function, true otherwise
		1043	*
4528	svoboda	1044	* Note: this function is not thread-safe, you would have
		1045	* to redefine static variables with fibril_local.
3707	decky	1046	*
1552	palkovsky	1047	*/
3707	decky	1048	static bool shm_handle(ipc_callid_t callid, ipc_call_t *call, int vp)
1547	palkovsky	1049	{
		1050	static keyfield_t *interbuffer = NULL;
		1051	static size_t intersize = 0;
3707	decky	1052
1720	palkovsky	1053	static unsigned char *shm = NULL;
1555	palkovsky	1054	static ipcarg_t shm_id = 0;
		1055	static size_t shm_size;
3707	decky	1056
		1057	bool handled = true;
		1058	int retval = EOK;
1547	palkovsky	1059	viewport_t *vport = &viewports[vp];
3707	decky	1060	unsigned int x;
		1061	unsigned int y;
4167	svoboda	1062	unsigned int w;
		1063	unsigned int h;
3707	decky	1064
1547	palkovsky	1065	switch (IPC_GET_METHOD(*call)) {
2677	jermar	1066	case IPC_M_SHARE_OUT:
1547	palkovsky	1067	/* We accept one area for data interchange */
1555	palkovsky	1068	if (IPC_GET_ARG1(*call) == shm_id) {
2141	jermar	1069	void dest = as_get_mappable_page(IPC_GET_ARG2(call));
1555	palkovsky	1070	shm_size = IPC_GET_ARG2(*call);
4594	decky	1071	if (ipc_answer_1(callid, EOK, (sysarg_t) dest)) {
1555	palkovsky	1072	shm_id = 0;
4594	decky	1073	return false;
		1074	}
		1075	shm = dest;
3707	decky	1076
1555	palkovsky	1077	if (shm[0] != 'P')
3707	decky	1078	return false;
		1079
		1080	return true;
1547	palkovsky	1081	} else {
		1082	intersize = IPC_GET_ARG2(*call);
2015	jermar	1083	receive_comm_area(callid, call, (void *) &interbuffer);
1547	palkovsky	1084	}
3707	decky	1085	return true;
1547	palkovsky	1086	case FB_PREPARE_SHM:
1555	palkovsky	1087	if (shm_id)
1547	palkovsky	1088	retval = EBUSY;
		1089	else
1555	palkovsky	1090	shm_id = IPC_GET_ARG1(*call);
1547	palkovsky	1091	break;
		1092
		1093	case FB_DROP_SHM:
1555	palkovsky	1094	if (shm) {
		1095	as_area_destroy(shm);
		1096	shm = NULL;
1547	palkovsky	1097	}
1555	palkovsky	1098	shm_id = 0;
1547	palkovsky	1099	break;
3707	decky	1100
1555	palkovsky	1101	case FB_SHM2PIXMAP:
		1102	if (!shm) {
		1103	retval = EINVAL;
		1104	break;
		1105	}
		1106	retval = shm2pixmap(shm, shm_size);
		1107	break;
1547	palkovsky	1108	case FB_DRAW_PPM:
1555	palkovsky	1109	if (!shm) {
1547	palkovsky	1110	retval = EINVAL;
		1111	break;
		1112	}
		1113	x = IPC_GET_ARG1(*call);
		1114	y = IPC_GET_ARG2(*call);
3707	decky	1115
		1116	if ((x > vport->width) \|\| (y > vport->height)) {
1547	palkovsky	1117	retval = EINVAL;
		1118	break;
		1119	}
		1120
2025	jermar	1121	ppm_draw(shm, shm_size, IPC_GET_ARG1(*call),
3707	decky	1122	IPC_GET_ARG2(call), vport->width - x, vport->height - y, putpixel, (void ) vport);
1547	palkovsky	1123	break;
		1124	case FB_DRAW_TEXT_DATA:
4167	svoboda	1125	x = IPC_GET_ARG1(*call);
		1126	y = IPC_GET_ARG2(*call);
		1127	w = IPC_GET_ARG3(*call);
		1128	h = IPC_GET_ARG4(*call);
1547	palkovsky	1129	if (!interbuffer) {
		1130	retval = EINVAL;
		1131	break;
		1132	}
4167	svoboda	1133	if (x + w > vport->cols \|\| y + h > vport->rows) {
1547	palkovsky	1134	retval = EINVAL;
		1135	break;
		1136	}
4167	svoboda	1137	if (intersize < w * h * sizeof(*interbuffer)) {
		1138	retval = EINVAL;
		1139	break;
		1140	}
		1141	draw_text_data(vport, interbuffer, x, y, w, h);
1547	palkovsky	1142	break;
		1143	default:
3707	decky	1144	handled = false;
1547	palkovsky	1145	}
		1146
		1147	if (handled)
2619	jermar	1148	ipc_answer_0(callid, retval);
1547	palkovsky	1149	return handled;
		1150	}
		1151
3707	decky	1152
		1153	static void copy_vp_to_pixmap(viewport_t vport, pixmap_t pmap)
1552	palkovsky	1154	{
3707	decky	1155	unsigned int width = vport->width;
		1156	unsigned int height = vport->height;
		1157
1711	palkovsky	1158	if (width + vport->x > screen.xres)
		1159	width = screen.xres - vport->x;
2301	decky	1160	if (height + vport->y > screen.yres)
1711	palkovsky	1161	height = screen.yres - vport->y;
2301	decky	1162
3707	decky	1163	unsigned int realwidth = pmap->width <= width ? pmap->width : width;
		1164	unsigned int realheight = pmap->height <= height ? pmap->height : height;
2301	decky	1165
3707	decky	1166	unsigned int srcrowsize = vport->width * screen.pixelbytes;
		1167	unsigned int realrowsize = realwidth * screen.pixelbytes;
		1168
		1169	unsigned int y;
2301	decky	1170	for (y = 0; y < realheight; y++) {
3707	decky	1171	unsigned int tmp = (vport->y + y) * screen.scanline + vport->x * screen.pixelbytes;
		1172	memcpy(pmap->data + srcrowsize * y, screen.fb_addr + tmp, realrowsize);
1711	palkovsky	1173	}
		1174	}
		1175
3707	decky	1176
		1177	/** Save viewport to pixmap
		1178	*
		1179	*/
		1180	static int save_vp_to_pixmap(viewport_t *vport)
1711	palkovsky	1181	{
		1182	int pm;
		1183	pixmap_t *pmap;
3707	decky	1184
1552	palkovsky	1185	pm = find_free_pixmap();
		1186	if (pm == -1)
		1187	return ELIMIT;
		1188
		1189	pmap = &pixmaps[pm];
		1190	pmap->data = malloc(screen.pixelbytes * vport->width * vport->height);
		1191	if (!pmap->data)
		1192	return ENOMEM;
3707	decky	1193
1552	palkovsky	1194	pmap->width = vport->width;
		1195	pmap->height = vport->height;
3707	decky	1196
1711	palkovsky	1197	copy_vp_to_pixmap(vport, pmap);
1552	palkovsky	1198
		1199	return pm;
		1200	}
		1201
3707	decky	1202
1552	palkovsky	1203	/** Draw pixmap on screen
		1204	*
		1205	* @param vp Viewport to draw on
		1206	* @param pm Pixmap identifier
3707	decky	1207	*
1552	palkovsky	1208	*/
		1209	static int draw_pixmap(int vp, int pm)
		1210	{
		1211	pixmap_t *pmap = &pixmaps[pm];
		1212	viewport_t *vport = &viewports[vp];
3707	decky	1213
		1214	unsigned int width = vport->width;
		1215	unsigned int height = vport->height;
		1216
1711	palkovsky	1217	if (width + vport->x > screen.xres)
		1218	width = screen.xres - vport->x;
		1219	if (height + vport->y > screen.yres)
		1220	height = screen.yres - vport->y;
3707	decky	1221
1552	palkovsky	1222	if (!pmap->data)
		1223	return EINVAL;
3707	decky	1224
		1225	unsigned int realwidth = pmap->width <= width ? pmap->width : width;
		1226	unsigned int realheight = pmap->height <= height ? pmap->height : height;
		1227
		1228	unsigned int srcrowsize = vport->width * screen.pixelbytes;
		1229	unsigned int realrowsize = realwidth * screen.pixelbytes;
		1230
		1231	unsigned int y;
2070	jermar	1232	for (y = 0; y < realheight; y++) {
3707	decky	1233	unsigned int tmp = (vport->y + y) * screen.scanline + vport->x * screen.pixelbytes;
		1234	memcpy(screen.fb_addr + tmp, pmap->data + y * srcrowsize, realrowsize);
1552	palkovsky	1235	}
3707	decky	1236
		1237	return EOK;
1552	palkovsky	1238	}
		1239
3707	decky	1240
		1241	/** Tick animation one step forward
		1242	*
		1243	*/
		1244	static void anims_tick(void)
1646	palkovsky	1245	{
3707	decky	1246	unsigned int i;
1646	palkovsky	1247	static int counts = 0;
		1248
		1249	/* Limit redrawing */
2025	jermar	1250	counts = (counts + 1) % 8;
1646	palkovsky	1251	if (counts)
		1252	return;
4316	decky	1253
2070	jermar	1254	for (i = 0; i < MAX_ANIMATIONS; i++) {
3707	decky	1255	if ((!animations[i].animlen) \|\| (!animations[i].initialized) \|\|
		1256	(!animations[i].enabled))
1646	palkovsky	1257	continue;
3707	decky	1258
		1259	draw_pixmap(animations[i].vp, animations[i].pixmaps[animations[i].pos]);
		1260	animations[i].pos = (animations[i].pos + 1) % animations[i].animlen;
1646	palkovsky	1261	}
		1262	}
		1263
1711	palkovsky	1264
3707	decky	1265	static unsigned int pointer_x;
		1266	static unsigned int pointer_y;
		1267	static bool pointer_shown, pointer_enabled;
1711	palkovsky	1268	static int pointer_vport = -1;
		1269	static int pointer_pixmap = -1;
		1270
3707	decky	1271
		1272	static void mouse_show(void)
1711	palkovsky	1273	{
2070	jermar	1274	int i, j;
1711	palkovsky	1275	int visibility;
		1276	int color;
		1277	int bytepos;
3707	decky	1278
		1279	if ((pointer_shown) \|\| (!pointer_enabled))
1723	palkovsky	1280	return;
3707	decky	1281
3723	svoboda	1282	/* Save image under the pointer. */
1711	palkovsky	1283	if (pointer_vport == -1) {
3707	decky	1284	pointer_vport = vport_create(pointer_x, pointer_y, pointer_width, pointer_height);
1711	palkovsky	1285	if (pointer_vport < 0)
		1286	return;
		1287	} else {
		1288	viewports[pointer_vport].x = pointer_x;
		1289	viewports[pointer_vport].y = pointer_y;
		1290	}
3707	decky	1291
1711	palkovsky	1292	if (pointer_pixmap == -1)
		1293	pointer_pixmap = save_vp_to_pixmap(&viewports[pointer_vport]);
		1294	else
3707	decky	1295	copy_vp_to_pixmap(&viewports[pointer_vport], &pixmaps[pointer_pixmap]);
		1296
3723	svoboda	1297	/* Draw mouse pointer. */
2025	jermar	1298	for (i = 0; i < pointer_height; i++)
		1299	for (j = 0; j < pointer_width; j++) {
		1300	bytepos = i * ((pointer_width - 1) / 8 + 1) + j / 8;
2070	jermar	1301	visibility = pointer_mask_bits[bytepos] &
2619	jermar	1302	(1 << (j % 8));
1711	palkovsky	1303	if (visibility) {
2619	jermar	1304	color = pointer_bits[bytepos] &
		1305	(1 << (j % 8)) ? 0 : 0xffffff;
2025	jermar	1306	if (pointer_x + j < screen.xres && pointer_y +
2619	jermar	1307	i < screen.yres)
2025	jermar	1308	putpixel(&viewports[0], pointer_x + j,
2619	jermar	1309	pointer_y + i, color);
1711	palkovsky	1310	}
		1311	}
		1312	pointer_shown = 1;
		1313	}
		1314
3707	decky	1315
		1316	static void mouse_hide(void)
1711	palkovsky	1317	{
3723	svoboda	1318	/* Restore image under the pointer. */
1711	palkovsky	1319	if (pointer_shown) {
		1320	draw_pixmap(pointer_vport, pointer_pixmap);
		1321	pointer_shown = 0;
		1322	}
		1323	}
		1324
3707	decky	1325
		1326	static void mouse_move(unsigned int x, unsigned int y)
1711	palkovsky	1327	{
		1328	mouse_hide();
		1329	pointer_x = x;
		1330	pointer_y = y;
		1331	mouse_show();
		1332	}
		1333
3707	decky	1334
		1335	static int anim_handle(ipc_callid_t callid, ipc_call_t *call, int vp)
1646	palkovsky	1336	{
3707	decky	1337	bool handled = true;
		1338	int retval = EOK;
		1339	int i, nvp;
1646	palkovsky	1340	int newval;
3707	decky	1341
1646	palkovsky	1342	switch (IPC_GET_METHOD(*call)) {
		1343	case FB_ANIM_CREATE:
		1344	nvp = IPC_GET_ARG1(*call);
		1345	if (nvp == -1)
		1346	nvp = vp;
2025	jermar	1347	if (nvp >= MAX_VIEWPORTS \|\| nvp < 0 \|\|
		1348	!viewports[nvp].initialized) {
1646	palkovsky	1349	retval = EINVAL;
		1350	break;
		1351	}
2025	jermar	1352	for (i = 0; i < MAX_ANIMATIONS; i++) {
		1353	if (!animations[i].initialized)
1646	palkovsky	1354	break;
		1355	}
		1356	if (i == MAX_ANIMATIONS) {
		1357	retval = ELIMIT;
		1358	break;
		1359	}
		1360	animations[i].initialized = 1;
		1361	animations[i].animlen = 0;
		1362	animations[i].pos = 0;
		1363	animations[i].enabled = 0;
		1364	animations[i].vp = nvp;
		1365	retval = i;
		1366	break;
		1367	case FB_ANIM_DROP:
		1368	i = IPC_GET_ARG1(*call);
1720	palkovsky	1369	if (i >= MAX_ANIMATIONS \|\| i < 0) {
1646	palkovsky	1370	retval = EINVAL;
		1371	break;
		1372	}
		1373	animations[i].initialized = 0;
		1374	break;
		1375	case FB_ANIM_ADDPIXMAP:
		1376	i = IPC_GET_ARG1(*call);
2025	jermar	1377	if (i >= MAX_ANIMATIONS \|\| i < 0 \|\|
		1378	!animations[i].initialized) {
1646	palkovsky	1379	retval = EINVAL;
		1380	break;
		1381	}
		1382	if (animations[i].animlen == MAX_ANIM_LEN) {
		1383	retval = ELIMIT;
		1384	break;
		1385	}
		1386	newval = IPC_GET_ARG2(*call);
2025	jermar	1387	if (newval < 0 \|\| newval > MAX_PIXMAPS \|\|
		1388	!pixmaps[newval].data) {
1646	palkovsky	1389	retval = EINVAL;
		1390	break;
		1391	}
		1392	animations[i].pixmaps[animations[i].animlen++] = newval;
		1393	break;
		1394	case FB_ANIM_CHGVP:
		1395	i = IPC_GET_ARG1(*call);
		1396	if (i >= MAX_ANIMATIONS \|\| i < 0) {
		1397	retval = EINVAL;
		1398	break;
		1399	}
		1400	nvp = IPC_GET_ARG2(*call);
		1401	if (nvp == -1)
		1402	nvp = vp;
2025	jermar	1403	if (nvp >= MAX_VIEWPORTS \|\| nvp < 0 \|\|
		1404	!viewports[nvp].initialized) {
1646	palkovsky	1405	retval = EINVAL;
		1406	break;
		1407	}
		1408	animations[i].vp = nvp;
		1409	break;
		1410	case FB_ANIM_START:
		1411	case FB_ANIM_STOP:
		1412	i = IPC_GET_ARG1(*call);
		1413	if (i >= MAX_ANIMATIONS \|\| i < 0) {
		1414	retval = EINVAL;
		1415	break;
		1416	}
		1417	newval = (IPC_GET_METHOD(*call) == FB_ANIM_START);
		1418	if (newval ^ animations[i].enabled) {
		1419	animations[i].enabled = newval;
		1420	anims_enabled += newval ? 1 : -1;
		1421	}
		1422	break;
		1423	default:
		1424	handled = 0;
		1425	}
		1426	if (handled)
2619	jermar	1427	ipc_answer_0(callid, retval);
1646	palkovsky	1428	return handled;
		1429	}
		1430
3707	decky	1431
		1432	/** Handler for messages concerning pixmap handling
		1433	*
		1434	*/
		1435	static int pixmap_handle(ipc_callid_t callid, ipc_call_t *call, int vp)
1552	palkovsky	1436	{
3707	decky	1437	bool handled = true;
		1438	int retval = EOK;
		1439	int i, nvp;
		1440
1552	palkovsky	1441	switch (IPC_GET_METHOD(*call)) {
		1442	case FB_VP_DRAW_PIXMAP:
		1443	nvp = IPC_GET_ARG1(*call);
		1444	if (nvp == -1)
		1445	nvp = vp;
2025	jermar	1446	if (nvp < 0 \|\| nvp >= MAX_VIEWPORTS \|\|
		1447	!viewports[nvp].initialized) {
1552	palkovsky	1448	retval = EINVAL;
		1449	break;
		1450	}
		1451	i = IPC_GET_ARG2(*call);
		1452	retval = draw_pixmap(nvp, i);
		1453	break;
		1454	case FB_VP2PIXMAP:
		1455	nvp = IPC_GET_ARG1(*call);
		1456	if (nvp == -1)
		1457	nvp = vp;
2025	jermar	1458	if (nvp < 0 \|\| nvp >= MAX_VIEWPORTS \|\|
		1459	!viewports[nvp].initialized)
1552	palkovsky	1460	retval = EINVAL;
		1461	else
1711	palkovsky	1462	retval = save_vp_to_pixmap(&viewports[nvp]);
1552	palkovsky	1463	break;
		1464	case FB_DROP_PIXMAP:
		1465	i = IPC_GET_ARG1(*call);
		1466	if (i >= MAX_PIXMAPS) {
		1467	retval = EINVAL;
		1468	break;
		1469	}
		1470	if (pixmaps[i].data) {
		1471	free(pixmaps[i].data);
		1472	pixmaps[i].data = NULL;
		1473	}
		1474	break;
		1475	default:
		1476	handled = 0;
		1477	}
3707	decky	1478
1552	palkovsky	1479	if (handled)
2619	jermar	1480	ipc_answer_0(callid, retval);
1552	palkovsky	1481	return handled;
		1482
		1483	}
		1484
3767	svoboda	1485	static int rgb_from_style(attr_rgb_t *rgb, int style)
		1486	{
		1487	switch (style) {
		1488	case STYLE_NORMAL:
		1489	rgb->fg_color = color_table[COLOR_BLACK];
		1490	rgb->bg_color = color_table[COLOR_WHITE];
		1491	break;
		1492	case STYLE_EMPHASIS:
		1493	rgb->fg_color = color_table[COLOR_RED];
		1494	rgb->bg_color = color_table[COLOR_WHITE];
		1495	break;
		1496	default:
		1497	return EINVAL;
		1498	}
		1499
		1500	return EOK;
		1501	}
		1502
		1503	static int rgb_from_idx(attr_rgb_t *rgb, ipcarg_t fg_color,
		1504	ipcarg_t bg_color, ipcarg_t flags)
		1505	{
		1506	fg_color = (fg_color & 7) \| ((flags & CATTR_BRIGHT) ? 8 : 0);
		1507	bg_color = (bg_color & 7) \| ((flags & CATTR_BRIGHT) ? 8 : 0);
		1508
		1509	rgb->fg_color = color_table[fg_color];
		1510	rgb->bg_color = color_table[bg_color];
		1511
		1512	return EOK;
		1513	}
		1514
3792	svoboda	1515	static int rgb_from_attr(attr_rgb_t rgb, const attrs_t a)
		1516	{
		1517	int rc;
		1518
		1519	switch (a->t) {
		1520	case at_style:
		1521	rc = rgb_from_style(rgb, a->a.s.style);
		1522	break;
		1523	case at_idx:
		1524	rc = rgb_from_idx(rgb, a->a.i.fg_color,
		1525	a->a.i.bg_color, a->a.i.flags);
		1526	break;
		1527	case at_rgb:
		1528	*rgb = a->a.r;
		1529	rc = EOK;
		1530	break;
		1531	}
		1532
		1533	return rc;
		1534	}
		1535
3767	svoboda	1536	static int fb_set_style(viewport_t *vport, ipcarg_t style)
		1537	{
		1538	return rgb_from_style(&vport->attr, (int) style);
		1539	}
		1540
		1541	static int fb_set_color(viewport_t *vport, ipcarg_t fg_color,
		1542	ipcarg_t bg_color, ipcarg_t flags)
		1543	{
		1544	return rgb_from_idx(&vport->attr, fg_color, bg_color, flags);
		1545	}
		1546
1498	palkovsky	1547	/** Function for handling connections to FB
		1548	*
		1549	*/
3707	decky	1550	static void fb_client_connection(ipc_callid_t iid, ipc_call_t *icall)
1363	vana	1551	{
3707	decky	1552	unsigned int vp = 0;
		1553	viewport_t *vport = &viewports[vp];
		1554
1485	palkovsky	1555	if (client_connected) {
2619	jermar	1556	ipc_answer_0(iid, ELIMIT);
1485	palkovsky	1557	return;
		1558	}
3707	decky	1559
		1560	/* Accept connection */
		1561	client_connected = true;
		1562	ipc_answer_0(iid, EOK);
		1563
		1564	while (true) {
		1565	ipc_callid_t callid;
		1566	ipc_call_t call;
		1567	int retval;
		1568	unsigned int i;
		1569	int scroll;
4232	svoboda	1570	wchar_t ch;
4457	decky	1571	unsigned int col, row;
3707	decky	1572
		1573	if ((vport->cursor_active) \|\| (anims_enabled))
2070	jermar	1574	callid = async_get_call_timeout(&call, 250000);
1640	palkovsky	1575	else
		1576	callid = async_get_call(&call);
3707	decky	1577
1713	palkovsky	1578	mouse_hide();
1500	palkovsky	1579	if (!callid) {
1673	palkovsky	1580	cursor_blink(vport);
1646	palkovsky	1581	anims_tick();
1723	palkovsky	1582	mouse_show();
1500	palkovsky	1583	continue;
		1584	}
3707	decky	1585
1547	palkovsky	1586	if (shm_handle(callid, &call, vp))
		1587	continue;
3707	decky	1588
1552	palkovsky	1589	if (pixmap_handle(callid, &call, vp))
		1590	continue;
3707	decky	1591
1646	palkovsky	1592	if (anim_handle(callid, &call, vp))
		1593	continue;
3707	decky	1594
		1595	switch (IPC_GET_METHOD(call)) {
1485	palkovsky	1596	case IPC_M_PHONE_HUNGUP:
3707	decky	1597	client_connected = false;
		1598
		1599	/* Cleanup other viewports */
2025	jermar	1600	for (i = 1; i < MAX_VIEWPORTS; i++)
3707	decky	1601	vport->initialized = false;
		1602
		1603	/* Exit thread */
		1604	return;
		1605
1485	palkovsky	1606	case FB_PUTCHAR:
4232	svoboda	1607	ch = IPC_GET_ARG1(call);
4457	decky	1608	col = IPC_GET_ARG2(call);
		1609	row = IPC_GET_ARG3(call);
3707	decky	1610
		1611	if ((col >= vport->cols) \|\| (row >= vport->rows)) {
1485	palkovsky	1612	retval = EINVAL;
		1613	break;
		1614	}
2619	jermar	1615	ipc_answer_0(callid, EOK);
3707	decky	1616
4232	svoboda	1617	draw_char(vport, ch, col, row);
3707	decky	1618
		1619	/* Message already answered */
		1620	continue;
1485	palkovsky	1621	case FB_CLEAR:
3707	decky	1622	vport_clear(vport);
		1623	cursor_show(vport);
		1624	retval = EOK;
1485	palkovsky	1625	break;
3707	decky	1626	case FB_CURSOR_GOTO:
4457	decky	1627	col = IPC_GET_ARG1(call);
		1628	row = IPC_GET_ARG2(call);
3707	decky	1629
		1630	if ((col >= vport->cols) \|\| (row >= vport->rows)) {
1486	palkovsky	1631	retval = EINVAL;
		1632	break;
		1633	}
3707	decky	1634	retval = EOK;
		1635
1673	palkovsky	1636	cursor_hide(vport);
1486	palkovsky	1637	vport->cur_col = col;
		1638	vport->cur_row = row;
3707	decky	1639	cursor_show(vport);
		1640	break;
1486	palkovsky	1641	case FB_CURSOR_VISIBILITY:
1673	palkovsky	1642	cursor_hide(vport);
1500	palkovsky	1643	vport->cursor_active = IPC_GET_ARG1(call);
3707	decky	1644	cursor_show(vport);
		1645	retval = EOK;
1486	palkovsky	1646	break;
1485	palkovsky	1647	case FB_GET_CSIZE:
4457	decky	1648	ipc_answer_2(callid, EOK, vport->cols, vport->rows);
1485	palkovsky	1649	continue;
4644	svoboda	1650	case FB_GET_COLOR_CAP:
		1651	ipc_answer_1(callid, EOK, FB_CCAP_RGB);
		1652	continue;
1486	palkovsky	1653	case FB_SCROLL:
3707	decky	1654	scroll = IPC_GET_ARG1(call);
		1655	if ((scroll > (int) vport->rows) \|\| (scroll < (-(int) vport->rows))) {
1486	palkovsky	1656	retval = EINVAL;
		1657	break;
		1658	}
1673	palkovsky	1659	cursor_hide(vport);
3707	decky	1660	vport_scroll(vport, scroll);
		1661	cursor_show(vport);
		1662	retval = EOK;
1486	palkovsky	1663	break;
		1664	case FB_VIEWPORT_SWITCH:
		1665	i = IPC_GET_ARG1(call);
3707	decky	1666	if (i >= MAX_VIEWPORTS) {
1486	palkovsky	1667	retval = EINVAL;
		1668	break;
		1669	}
3707	decky	1670	if (!viewports[i].initialized) {
1486	palkovsky	1671	retval = EADDRNOTAVAIL;
		1672	break;
		1673	}
1673	palkovsky	1674	cursor_hide(vport);
1486	palkovsky	1675	vp = i;
		1676	vport = &viewports[vp];
3707	decky	1677	cursor_show(vport);
		1678	retval = EOK;
1486	palkovsky	1679	break;
		1680	case FB_VIEWPORT_CREATE:
3707	decky	1681	retval = vport_create(IPC_GET_ARG1(call) >> 16,
2619	jermar	1682	IPC_GET_ARG1(call) & 0xffff,
		1683	IPC_GET_ARG2(call) >> 16,
		1684	IPC_GET_ARG2(call) & 0xffff);
1486	palkovsky	1685	break;
		1686	case FB_VIEWPORT_DELETE:
		1687	i = IPC_GET_ARG1(call);
3707	decky	1688	if (i >= MAX_VIEWPORTS) {
1486	palkovsky	1689	retval = EINVAL;
		1690	break;
		1691	}
3707	decky	1692	if (!viewports[i].initialized) {
1486	palkovsky	1693	retval = EADDRNOTAVAIL;
		1694	break;
		1695	}
3707	decky	1696	viewports[i].initialized = false;
		1697	if (viewports[i].bgpixel)
		1698	free(viewports[i].bgpixel);
		1699	if (viewports[i].backbuf)
		1700	free(viewports[i].backbuf);
		1701	retval = EOK;
1486	palkovsky	1702	break;
		1703	case FB_SET_STYLE:
3767	svoboda	1704	retval = fb_set_style(vport, IPC_GET_ARG1(call));
		1705	break;
		1706	case FB_SET_COLOR:
		1707	retval = fb_set_color(vport, IPC_GET_ARG1(call),
		1708	IPC_GET_ARG2(call), IPC_GET_ARG3(call));
		1709	break;
		1710	case FB_SET_RGB_COLOR:
		1711	vport->attr.fg_color = IPC_GET_ARG1(call);
		1712	vport->attr.bg_color = IPC_GET_ARG2(call);
3707	decky	1713	retval = EOK;
1486	palkovsky	1714	break;
		1715	case FB_GET_RESOLUTION:
2619	jermar	1716	ipc_answer_2(callid, EOK, screen.xres, screen.yres);
1486	palkovsky	1717	continue;
1707	palkovsky	1718	case FB_POINTER_MOVE:
3707	decky	1719	pointer_enabled = true;
1711	palkovsky	1720	mouse_move(IPC_GET_ARG1(call), IPC_GET_ARG2(call));
3707	decky	1721	retval = EOK;
1707	palkovsky	1722	break;
4326	svoboda	1723	case FB_SCREEN_YIELD:
		1724	case FB_SCREEN_RECLAIM:
4325	svoboda	1725	retval = EOK;
		1726	break;
1485	palkovsky	1727	default:
		1728	retval = ENOENT;
		1729	}
2619	jermar	1730	ipc_answer_0(callid, retval);
1363	vana	1731	}
1485	palkovsky	1732	}
1363	vana	1733
3707	decky	1734	/** Initialization of framebuffer
		1735	*
		1736	*/
		1737	int fb_init(void)
1485	palkovsky	1738	{
1490	palkovsky	1739	async_set_client_connection(fb_client_connection);
1485	palkovsky	1740
3707	decky	1741	void fb_ph_addr = (void ) sysinfo_value("fb.address.physical");
		1742	unsigned int fb_offset = sysinfo_value("fb.offset");
		1743	unsigned int fb_width = sysinfo_value("fb.width");
		1744	unsigned int fb_height = sysinfo_value("fb.height");
		1745	unsigned int fb_scanline = sysinfo_value("fb.scanline");
		1746	unsigned int fb_visual = sysinfo_value("fb.visual");
		1747
		1748	unsigned int fbsize = fb_scanline * fb_height;
		1749	void *fb_addr = as_get_mappable_page(fbsize);
		1750
3908	decky	1751	if (physmem_map(fb_ph_addr + fb_offset, fb_addr,
		1752	ALIGN_UP(fbsize, PAGE_SIZE) >> PAGE_WIDTH, AS_AREA_READ \| AS_AREA_WRITE) != 0)
		1753	return -1;
3707	decky	1754
		1755	if (screen_init(fb_addr, fb_width, fb_height, fb_scanline, fb_visual))
1993	decky	1756	return 0;
		1757
		1758	return -1;
1363	vana	1759	}
1490	palkovsky	1760
3707	decky	1761	/**
1649	cejka	1762	* @}
		1763	*/

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(root)//trunk/uspace/srv/fb/fb.c – Rev 4644