WebSVN – HelenOS – Blame – //branches/arm/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
4651	pillai	253	static void rgb_8880(void *dst, uint32_t rgb)
		254	{
		255	((uint32_t ) dst)
		256	= (RED(rgb, 8) << 24) \| (GREEN(rgb, 8) << 16) \| BLUE(rgb, 8) << 8;
		257	}
3707	decky	258
4651	pillai	259	static void mask_8880(void *dst, bool mask)
		260	{
		261	((uint32_t ) dst) = (mask ? 0xffffff00 : 0);
		262	}
		263
3882	decky	264	/** RGB 8:8:8 conversion
3707	decky	265	*
		266	*/
		267	static void rgb_888(void *dst, uint32_t rgb)
1363	vana	268	{
3710	decky	269	((uint8_t *) dst)[0] = BLUE(rgb, 8);
		270	((uint8_t *) dst)[1] = GREEN(rgb, 8);
		271	((uint8_t *) dst)[2] = RED(rgb, 8);
1363	vana	272	}
		273
4316	decky	274	static void mask_888(void *dst, bool mask)
		275	{
		276	if (mask) {
		277	((uint8_t *) dst)[0] = 0xff;
		278	((uint8_t *) dst)[1] = 0xff;
		279	((uint8_t *) dst)[2] = 0xff;
		280	} else {
		281	((uint8_t *) dst)[0] = 0;
		282	((uint8_t *) dst)[1] = 0;
		283	((uint8_t *) dst)[2] = 0;
		284	}
		285	}
1363	vana	286
4316	decky	287
3882	decky	288	/** BGR 8:8:8 conversion
		289	*
		290	*/
		291	static void bgr_888(void *dst, uint32_t rgb)
		292	{
		293	((uint8_t *) dst)[0] = RED(rgb, 8);
		294	((uint8_t *) dst)[1] = GREEN(rgb, 8);
		295	((uint8_t *) dst)[2] = BLUE(rgb, 8);
		296	}
		297
		298
3707	decky	299	/** RGB 5:5:5 conversion
		300	*
		301	*/
		302	static void rgb_555(void *dst, uint32_t rgb)
1993	decky	303	{
3707	decky	304	((uint16_t ) dst)
		305	= (RED(rgb, 5) << 10) \| (GREEN(rgb, 5) << 5) \| BLUE(rgb, 5);
1993	decky	306	}
		307
4316	decky	308	static void mask_555(void *dst, bool mask)
		309	{
		310	((uint16_t ) dst) = (mask ? 0x7fff : 0);
		311	}
1993	decky	312
4316	decky	313
3707	decky	314	/** RGB 5:6:5 conversion
		315	*
		316	*/
		317	static void rgb_565(void *dst, uint32_t rgb)
1363	vana	318	{
3707	decky	319	((uint16_t ) dst)
		320	= (RED(rgb, 5) << 11) \| (GREEN(rgb, 6) << 5) \| BLUE(rgb, 5);
1363	vana	321	}
		322
4316	decky	323	static void mask_565(void *dst, bool mask)
		324	{
		325	((uint16_t ) dst) = (mask ? 0xffff : 0);
		326	}
1363	vana	327
4316	decky	328
3707	decky	329	/** RGB 3:2:3
		330	*
		331	*/
		332	static void rgb_323(void *dst, uint32_t rgb)
1363	vana	333	{
3707	decky	334	((uint8_t ) dst)
		335	= ~((RED(rgb, 3) << 5) \| (GREEN(rgb, 2) << 3) \| BLUE(rgb, 3));
1363	vana	336	}
		337
4316	decky	338	static void mask_323(void *dst, bool mask)
		339	{
		340	((uint8_t ) dst) = (mask ? 0xff : 0);
		341	}
		342
3725	svoboda	343	/** Draw a filled rectangle.
		344	*
		345	* @note Need real implementation that does not access VRAM twice.
4316	decky	346	*
3725	svoboda	347	*/
3723	svoboda	348	static void draw_filled_rect(unsigned int x0, unsigned int y0, unsigned int x1,
		349	unsigned int y1, uint32_t color)
		350	{
4316	decky	351	unsigned int x;
		352	unsigned int y;
3725	svoboda	353	unsigned int copy_bytes;
4316	decky	354
		355	uint8_t *sp;
		356	uint8_t *dp;
3723	svoboda	357	uint8_t cbuf[4];
4316	decky	358
		359	if ((y0 >= y1) \|\| (x0 >= x1))
		360	return;
		361
3723	svoboda	362	screen.rgb_conv(cbuf, color);
4316	decky	363
3725	svoboda	364	sp = &screen.fb_addr[FB_POS(x0, y0)];
		365	dp = sp;
4316	decky	366
3725	svoboda	367	/* Draw the first line. */
		368	for (x = x0; x < x1; x++) {
		369	memcpy(dp, cbuf, screen.pixelbytes);
		370	dp += screen.pixelbytes;
3723	svoboda	371	}
4316	decky	372
3725	svoboda	373	dp = sp + screen.scanline;
		374	copy_bytes = (x1 - x0) * screen.pixelbytes;
4316	decky	375
3725	svoboda	376	/* Draw the remaining lines by copying. */
		377	for (y = y0 + 1; y < y1; y++) {
		378	memcpy(dp, sp, copy_bytes);
		379	dp += screen.scanline;
		380	}
3723	svoboda	381	}
		382
		383	/** Redraw viewport.
1498	palkovsky	384	*
3707	decky	385	* @param vport Viewport to redraw
		386	*
1498	palkovsky	387	*/
3707	decky	388	static void vport_redraw(viewport_t *vport)
1485	palkovsky	389	{
4457	decky	390	unsigned int col;
4316	decky	391	unsigned int row;
		392
3707	decky	393	for (row = 0; row < vport->rows; row++) {
3723	svoboda	394	for (col = 0; col < vport->cols; col++) {
3739	svoboda	395	draw_vp_glyph(vport, false, col, row);
3707	decky	396	}
1672	palkovsky	397	}
4316	decky	398
3707	decky	399	if (COL2X(vport->cols) < vport->width) {
3723	svoboda	400	draw_filled_rect(
		401	vport->x + COL2X(vport->cols), vport->y,
		402	vport->x + vport->width, vport->y + vport->height,
3767	svoboda	403	vport->attr.bg_color);
1672	palkovsky	404	}
4316	decky	405
3707	decky	406	if (ROW2Y(vport->rows) < vport->height) {
3723	svoboda	407	draw_filled_rect(
		408	vport->x, vport->y + ROW2Y(vport->rows),
		409	vport->x + vport->width, vport->y + vport->height,
3767	svoboda	410	vport->attr.bg_color);
1672	palkovsky	411	}
1559	palkovsky	412	}
		413
3767	svoboda	414	static void backbuf_clear(bb_cell_t *backbuf, size_t len, uint32_t fg_color,
		415	uint32_t bg_color)
		416	{
4316	decky	417	size_t i;
		418
3767	svoboda	419	for (i = 0; i < len; i++) {
		420	backbuf[i].glyph = 0;
		421	backbuf[i].fg_color = fg_color;
		422	backbuf[i].bg_color = bg_color;
		423	}
		424	}
		425
3724	svoboda	426	/** Clear viewport.
3707	decky	427	*
		428	* @param vport Viewport to clear
		429	*
		430	*/
		431	static void vport_clear(viewport_t *vport)
1363	vana	432	{
3767	svoboda	433	backbuf_clear(vport->backbuf, vport->cols * vport->rows,
		434	vport->attr.fg_color, vport->attr.bg_color);
3707	decky	435	vport_redraw(vport);
1363	vana	436	}
		437
3724	svoboda	438	/** Scroll viewport by the specified number of lines.
1485	palkovsky	439	*
1709	jermar	440	* @param vport Viewport to scroll
3707	decky	441	* @param lines Number of lines to scroll
		442	*
1485	palkovsky	443	*/
3707	decky	444	static void vport_scroll(viewport_t *vport, int lines)
1363	vana	445	{
4457	decky	446	unsigned int col;
4316	decky	447	unsigned int row;
		448	unsigned int x;
		449	unsigned int y;
4232	svoboda	450	uint32_t glyph;
3767	svoboda	451	uint32_t fg_color;
		452	uint32_t bg_color;
4316	decky	453	bb_cell_t *bbp;
		454	bb_cell_t *xbp;
		455
3724	svoboda	456	/*
3739	svoboda	457	* Redraw.
		458	*/
4316	decky	459
3739	svoboda	460	y = vport->y;
		461	for (row = 0; row < vport->rows; row++) {
		462	x = vport->x;
		463	for (col = 0; col < vport->cols; col++) {
4548	svoboda	464	if (((int) row + lines >= 0) &&
		465	((int) row + lines < (int) vport->rows)) {
3767	svoboda	466	xbp = &vport->backbuf[BB_POS(vport, col, row + lines)];
		467	bbp = &vport->backbuf[BB_POS(vport, col, row)];
4316	decky	468
3767	svoboda	469	glyph = xbp->glyph;
		470	fg_color = xbp->fg_color;
		471	bg_color = xbp->bg_color;
4316	decky	472
		473	if ((bbp->glyph == glyph)
		474	&& (bbp->fg_color == xbp->fg_color)
		475	&& (bbp->bg_color == xbp->bg_color)) {
3739	svoboda	476	x += FONT_WIDTH;
		477	continue;
		478	}
		479	} else {
		480	glyph = 0;
3767	svoboda	481	fg_color = vport->attr.fg_color;
		482	bg_color = vport->attr.bg_color;
3739	svoboda	483	}
4316	decky	484
4233	svoboda	485	(*vport->dglyph)(x, y, false, screen.glyphs, glyph,
3767	svoboda	486	fg_color, bg_color);
3739	svoboda	487	x += FONT_WIDTH;
		488	}
		489	y += FONT_SCANLINES;
		490	}
4316	decky	491
3739	svoboda	492	/*
3724	svoboda	493	* Scroll backbuffer.
		494	*/
4316	decky	495
1672	palkovsky	496	if (lines > 0) {
3739	svoboda	497	memmove(vport->backbuf, vport->backbuf + vport->cols * lines,
3767	svoboda	498	vport->cols * (vport->rows - lines) * sizeof(bb_cell_t));
		499	backbuf_clear(&vport->backbuf[BB_POS(vport, 0, vport->rows - lines)],
		500	vport->cols * lines, vport->attr.fg_color, vport->attr.bg_color);
3707	decky	501	} else {
3739	svoboda	502	memmove(vport->backbuf - vport->cols * lines, vport->backbuf,
3767	svoboda	503	vport->cols * (vport->rows + lines) * sizeof(bb_cell_t));
		504	backbuf_clear(vport->backbuf, - vport->cols * lines,
		505	vport->attr.fg_color, vport->attr.bg_color);
1672	palkovsky	506	}
		507	}
		508
3707	decky	509	/** Render glyphs
1558	palkovsky	510	*
3707	decky	511	* Convert glyphs from device independent font
		512	* description to current visual representation.
4316	decky	513	*
1558	palkovsky	514	*/
4233	svoboda	515	static void render_glyphs(void)
1363	vana	516	{
3707	decky	517	unsigned int glyph;
4316	decky	518
3707	decky	519	for (glyph = 0; glyph < FONT_GLYPHS; glyph++) {
		520	unsigned int y;
4316	decky	521
3707	decky	522	for (y = 0; y < FONT_SCANLINES; y++) {
		523	unsigned int x;
4316	decky	524
3707	decky	525	for (x = 0; x < FONT_WIDTH; x++) {
4316	decky	526	screen.mask_conv(&screen.glyphs[GLYPH_POS(glyph, y, false) + x * screen.pixelbytes],
4322	decky	527	(fb_font[glyph][y] & (1 << (7 - x))) ? true : false);
4316	decky	528
		529	screen.mask_conv(&screen.glyphs[GLYPH_POS(glyph, y, true) + x * screen.pixelbytes],
4322	decky	530	(fb_font[glyph][y] & (1 << (7 - x))) ? false : true);
3707	decky	531	}
1509	palkovsky	532	}
		533	}
1363	vana	534	}
		535
1485	palkovsky	536	/** Create new viewport
1363	vana	537	*
3707	decky	538	* @param x Origin of the viewport (x).
		539	* @param y Origin of the viewport (y).
		540	* @param width Width of the viewport.
		541	* @param height Height of the viewport.
		542	*
		543	* @return New viewport number.
		544	*
1363	vana	545	*/
3707	decky	546	static int vport_create(unsigned int x, unsigned int y,
		547	unsigned int width, unsigned int height)
1363	vana	548	{
3707	decky	549	unsigned int i;
		550
2070	jermar	551	for (i = 0; i < MAX_VIEWPORTS; i++) {
1485	palkovsky	552	if (!viewports[i].initialized)
1363	vana	553	break;
		554	}
4316	decky	555
1485	palkovsky	556	if (i == MAX_VIEWPORTS)
		557	return ELIMIT;
3707	decky	558
		559	unsigned int cols = width / FONT_WIDTH;
		560	unsigned int rows = height / FONT_SCANLINES;
3767	svoboda	561	unsigned int bbsize = cols * rows * sizeof(bb_cell_t);
3744	svoboda	562	unsigned int word_size = sizeof(unsigned long);
3707	decky	563
3767	svoboda	564	bb_cell_t backbuf = (bb_cell_t ) malloc(bbsize);
3707	decky	565	if (!backbuf)
		566	return ENOMEM;
		567
		568	uint8_t bgpixel = (uint8_t ) malloc(screen.pixelbytes);
		569	if (!bgpixel) {
		570	free(backbuf);
		571	return ENOMEM;
		572	}
4316	decky	573
3767	svoboda	574	backbuf_clear(backbuf, cols * rows, DEFAULT_FGCOLOR, DEFAULT_BGCOLOR);
3707	decky	575	memset(bgpixel, 0, screen.pixelbytes);
		576
1485	palkovsky	577	viewports[i].x = x;
		578	viewports[i].y = y;
		579	viewports[i].width = width;
		580	viewports[i].height = height;
1363	vana	581
3707	decky	582	viewports[i].cols = cols;
		583	viewports[i].rows = rows;
		584
3767	svoboda	585	viewports[i].attr.bg_color = DEFAULT_BGCOLOR;
		586	viewports[i].attr.fg_color = DEFAULT_FGCOLOR;
1363	vana	587
3707	decky	588	viewports[i].bgpixel = bgpixel;
4316	decky	589
3744	svoboda	590	/*
4316	decky	591	* Conditions necessary to select aligned version:
		592	* - word size is divisible by pixelbytes
		593	* - cell scanline size is divisible by word size
		594	* - cell scanlines are word-aligned
3744	svoboda	595	*
		596	*/
4316	decky	597	if (((word_size % screen.pixelbytes) == 0)
		598	&& ((FONT_WIDTH * screen.pixelbytes) % word_size == 0)
		599	&& ((x * screen.pixelbytes) % word_size == 0)
		600	&& (screen.scanline % word_size == 0)) {
3744	svoboda	601	viewports[i].dglyph = draw_glyph_aligned;
		602	} else {
		603	viewports[i].dglyph = draw_glyph_fallback;
		604	}
4316	decky	605
1489	palkovsky	606	viewports[i].cur_col = 0;
		607	viewports[i].cur_row = 0;
3707	decky	608	viewports[i].cursor_active = false;
		609	viewports[i].cursor_shown = false;
		610
		611	viewports[i].bbsize = bbsize;
		612	viewports[i].backbuf = backbuf;
		613
		614	viewports[i].initialized = true;
		615
4233	svoboda	616	screen.rgb_conv(viewports[i].bgpixel, viewports[i].attr.bg_color);
3707	decky	617
1485	palkovsky	618	return i;
1363	vana	619	}
		620
3707	decky	621
1363	vana	622	/** Initialize framebuffer as a chardev output device
		623	*
3707	decky	624	* @param addr Address of the framebuffer
		625	* @param xres Screen width in pixels
		626	* @param yres Screen height in pixels
		627	* @param visual Bits per pixel (8, 16, 24, 32)
		628	* @param scan Bytes per one scanline
1363	vana	629	*
		630	*/
3707	decky	631	static bool screen_init(void *addr, unsigned int xres, unsigned int yres,
		632	unsigned int scan, unsigned int visual)
1363	vana	633	{
4316	decky	634
		635
1993	decky	636	switch (visual) {
		637	case VISUAL_INDIRECT_8:
3707	decky	638	screen.rgb_conv = rgb_323;
4316	decky	639	screen.mask_conv = mask_323;
1886	jermar	640	screen.pixelbytes = 1;
		641	break;
1993	decky	642	case VISUAL_RGB_5_5_5:
3707	decky	643	screen.rgb_conv = rgb_555;
4316	decky	644	screen.mask_conv = mask_555;
1886	jermar	645	screen.pixelbytes = 2;
		646	break;
1993	decky	647	case VISUAL_RGB_5_6_5:
3707	decky	648	screen.rgb_conv = rgb_565;
4316	decky	649	screen.mask_conv = mask_565;
1993	decky	650	screen.pixelbytes = 2;
1886	jermar	651	break;
1993	decky	652	case VISUAL_RGB_8_8_8:
3707	decky	653	screen.rgb_conv = rgb_888;
4316	decky	654	screen.mask_conv = mask_888;
1993	decky	655	screen.pixelbytes = 3;
		656	break;
3882	decky	657	case VISUAL_BGR_8_8_8:
		658	screen.rgb_conv = bgr_888;
4316	decky	659	screen.mask_conv = mask_888;
3882	decky	660	screen.pixelbytes = 3;
		661	break;
1993	decky	662	case VISUAL_RGB_8_8_8_0:
4651	pillai	663	screen.rgb_conv = rgb_8880;
		664	screen.mask_conv = mask_8880;
1886	jermar	665	screen.pixelbytes = 4;
		666	break;
1993	decky	667	case VISUAL_RGB_0_8_8_8:
3707	decky	668	screen.rgb_conv = rgb_0888;
4316	decky	669	screen.mask_conv = mask_0888;
1993	decky	670	screen.pixelbytes = 4;
		671	break;
1994	decky	672	case VISUAL_BGR_0_8_8_8:
3707	decky	673	screen.rgb_conv = bgr_0888;
4316	decky	674	screen.mask_conv = mask_0888;
1994	decky	675	screen.pixelbytes = 4;
		676	break;
1993	decky	677	default:
		678	return false;
1363	vana	679	}
4316	decky	680
3707	decky	681	screen.fb_addr = (unsigned char *) addr;
1485	palkovsky	682	screen.xres = xres;
		683	screen.yres = yres;
		684	screen.scanline = scan;
1363	vana	685
3707	decky	686	screen.glyphscanline = FONT_WIDTH * screen.pixelbytes;
		687	screen.glyphbytes = screen.glyphscanline * FONT_SCANLINES;
4316	decky	688
		689	size_t glyphsize = 2 * FONT_GLYPHS * screen.glyphbytes;
		690	uint8_t glyphs = (uint8_t ) malloc(glyphsize);
4233	svoboda	691	if (!glyphs)
		692	return false;
3707	decky	693
4233	svoboda	694	memset(glyphs, 0, glyphsize);
		695	screen.glyphs = glyphs;
4316	decky	696
4233	svoboda	697	render_glyphs();
		698
1485	palkovsky	699	/* Create first viewport */
3707	decky	700	vport_create(0, 0, xres, yres);
1993	decky	701
		702	return true;
1485	palkovsky	703	}
1363	vana	704
3707	decky	705
3744	svoboda	706	/** Draw a glyph, takes advantage of alignment.
3707	decky	707	*
3744	svoboda	708	* This version can only be used if the following conditions are met:
3739	svoboda	709	*
3744	svoboda	710	* - word size is divisible by pixelbytes
		711	* - cell scanline size is divisible by word size
		712	* - cell scanlines are word-aligned
		713	*
		714	* It makes use of the pre-rendered mask to process (possibly) several
		715	* pixels at once (word size / pixelbytes pixels at a time are processed)
		716	* making it very fast. Most notably this version is not applicable at 24 bits
		717	* per pixel.
		718	*
4316	decky	719	* @param x x coordinate of top-left corner on screen.
		720	* @param y y coordinate of top-left corner on screen.
		721	* @param cursor Draw glyph with cursor
		722	* @param glyphs Pointer to font bitmap.
		723	* @param glyph Code of the glyph to draw.
		724	* @param fg_color Foreground color.
		725	* @param bg_color Backgroudn color.
		726	*
3739	svoboda	727	*/
3744	svoboda	728	static void draw_glyph_aligned(unsigned int x, unsigned int y, bool cursor,
4211	svoboda	729	uint8_t *glyphs, uint32_t glyph, uint32_t fg_color, uint32_t bg_color)
3739	svoboda	730	{
4316	decky	731	unsigned int i;
		732	unsigned int yd;
		733	unsigned long fg_buf;
		734	unsigned long bg_buf;
3744	svoboda	735	unsigned long mask;
4316	decky	736
3744	svoboda	737	/*
		738	* Prepare a pair of words, one filled with foreground-color
		739	* pattern and the other filled with background-color pattern.
		740	*/
		741	for (i = 0; i < sizeof(unsigned long) / screen.pixelbytes; i++) {
4316	decky	742	screen.rgb_conv(&((uint8_t ) &fg_buf)[i screen.pixelbytes],
3744	svoboda	743	fg_color);
4316	decky	744	screen.rgb_conv(&((uint8_t ) &bg_buf)[i screen.pixelbytes],
3744	svoboda	745	bg_color);
		746	}
4316	decky	747
3744	svoboda	748	/* Pointer to the current position in the mask. */
4316	decky	749	unsigned long maskp = (unsigned long ) &glyphs[GLYPH_POS(glyph, 0, cursor)];
		750
3744	svoboda	751	/* Pointer to the current position on the screen. */
4316	decky	752	unsigned long dp = (unsigned long ) &screen.fb_addr[FB_POS(x, y)];
		753
3744	svoboda	754	/* Width of the character cell in words. */
4316	decky	755	unsigned int ww = FONT_WIDTH * screen.pixelbytes / sizeof(unsigned long);
		756
3744	svoboda	757	/* Offset to add when moving to another screen scanline. */
4316	decky	758	unsigned int d_add = screen.scanline - FONT_WIDTH * screen.pixelbytes;
		759
3744	svoboda	760	for (yd = 0; yd < FONT_SCANLINES; yd++) {
		761	/*
		762	* Now process the cell scanline, combining foreground
		763	* and background color patters using the pre-rendered mask.
		764	*/
		765	for (i = 0; i < ww; i++) {
		766	mask = *maskp++;
		767	*dp++ = (fg_buf & mask) \| (bg_buf & ~mask);
		768	}
4316	decky	769
3744	svoboda	770	/* Move to the beginning of the next scanline of the cell. */
		771	dp = (unsigned long ) ((uint8_t ) dp + d_add);
		772	}
3739	svoboda	773	}
		774
3744	svoboda	775	/** Draw a glyph, fallback version.
		776	*
		777	* This version does not make use of the pre-rendered mask, it uses
		778	* the font bitmap directly. It works always, but it is slower.
		779	*
4316	decky	780	* @param x x coordinate of top-left corner on screen.
		781	* @param y y coordinate of top-left corner on screen.
		782	* @param cursor Draw glyph with cursor
		783	* @param glyphs Pointer to font bitmap.
		784	* @param glyph Code of the glyph to draw.
		785	* @param fg_color Foreground color.
		786	* @param bg_color Backgroudn color.
		787	*
3744	svoboda	788	*/
		789	void draw_glyph_fallback(unsigned int x, unsigned int y, bool cursor,
4211	svoboda	790	uint8_t *glyphs, uint32_t glyph, uint32_t fg_color, uint32_t bg_color)
3744	svoboda	791	{
4316	decky	792	unsigned int i;
		793	unsigned int j;
		794	unsigned int yd;
		795	uint8_t fg_buf[4];
		796	uint8_t bg_buf[4];
		797	uint8_t *sp;
3744	svoboda	798	uint8_t b;
4316	decky	799
3744	svoboda	800	/* Pre-render 1x the foreground and background color pixels. */
		801	if (cursor) {
		802	screen.rgb_conv(fg_buf, bg_color);
		803	screen.rgb_conv(bg_buf, fg_color);
		804	} else {
		805	screen.rgb_conv(fg_buf, fg_color);
		806	screen.rgb_conv(bg_buf, bg_color);
		807	}
4316	decky	808
3744	svoboda	809	/* Pointer to the current position on the screen. */
4316	decky	810	uint8_t dp = (uint8_t ) &screen.fb_addr[FB_POS(x, y)];
		811
3744	svoboda	812	/* Offset to add when moving to another screen scanline. */
4316	decky	813	unsigned int d_add = screen.scanline - FONT_WIDTH * screen.pixelbytes;
		814
3744	svoboda	815	for (yd = 0; yd < FONT_SCANLINES; yd++) {
		816	/* Byte containing bits of the glyph scanline. */
4232	svoboda	817	b = fb_font[glyph][yd];
4316	decky	818
3744	svoboda	819	for (i = 0; i < FONT_WIDTH; i++) {
		820	/* Choose color based on the current bit. */
		821	sp = (b & 0x80) ? fg_buf : bg_buf;
4316	decky	822
3744	svoboda	823	/* Copy the pixel. */
		824	for (j = 0; j < screen.pixelbytes; j++) {
		825	dp++ = sp++;
		826	}
4316	decky	827
3744	svoboda	828	/* Move to the next bit. */
		829	b = b << 1;
		830	}
		831
		832	/* Move to the beginning of the next scanline of the cell. */
		833	dp += d_add;
		834	}
		835	}
		836
4316	decky	837	/** Draw glyph at specified position in viewport.
3739	svoboda	838	*
3707	decky	839	* @param vport Viewport identification
		840	* @param cursor Draw glyph with cursor
		841	* @param col Screen position relative to viewport
		842	* @param row Screen position relative to viewport
		843	*
		844	*/
3739	svoboda	845	static void draw_vp_glyph(viewport_t *vport, bool cursor, unsigned int col,
		846	unsigned int row)
1500	palkovsky	847	{
3707	decky	848	unsigned int x = vport->x + COL2X(col);
		849	unsigned int y = vport->y + ROW2Y(row);
		850
4316	decky	851	uint32_t glyph = vport->backbuf[BB_POS(vport, col, row)].glyph;
		852	uint32_t fg_color = vport->backbuf[BB_POS(vport, col, row)].fg_color;
		853	uint32_t bg_color = vport->backbuf[BB_POS(vport, col, row)].bg_color;
		854
4233	svoboda	855	(*vport->dglyph)(x, y, cursor, screen.glyphs, glyph,
3767	svoboda	856	fg_color, bg_color);
3707	decky	857	}
		858
		859	/** Hide cursor if it is shown
		860	*
		861	*/
		862	static void cursor_hide(viewport_t *vport)
		863	{
		864	if ((vport->cursor_active) && (vport->cursor_shown)) {
3739	svoboda	865	draw_vp_glyph(vport, false, vport->cur_col, vport->cur_row);
3707	decky	866	vport->cursor_shown = false;
1500	palkovsky	867	}
		868	}
		869
3707	decky	870
		871	/** Show cursor if cursor showing is enabled
		872	*
		873	*/
		874	static void cursor_show(viewport_t *vport)
1500	palkovsky	875	{
		876	/* Do not check for cursor_shown */
		877	if (vport->cursor_active) {
3739	svoboda	878	draw_vp_glyph(vport, true, vport->cur_col, vport->cur_row);
3707	decky	879	vport->cursor_shown = true;
1500	palkovsky	880	}
		881	}
		882
3707	decky	883
		884	/** Invert cursor, if it is enabled
		885	*
		886	*/
		887	static void cursor_blink(viewport_t *vport)
1500	palkovsky	888	{
		889	if (vport->cursor_shown)
1673	palkovsky	890	cursor_hide(vport);
1500	palkovsky	891	else
3707	decky	892	cursor_show(vport);
1500	palkovsky	893	}
		894
3707	decky	895
		896	/** Draw character at given position relative to viewport
		897	*
		898	* @param vport Viewport identification
		899	* @param c Character to draw
		900	* @param col Screen position relative to viewport
		901	* @param row Screen position relative to viewport
		902	*
1498	palkovsky	903	*/
4211	svoboda	904	static void draw_char(viewport_t *vport, wchar_t c, unsigned int col, unsigned int row)
1486	palkovsky	905	{
3767	svoboda	906	bb_cell_t *bbp;
4316	decky	907
3707	decky	908	/* Do not hide cursor if we are going to overwrite it */
		909	if ((vport->cursor_active) && (vport->cursor_shown) &&
		910	((vport->cur_col != col) \|\| (vport->cur_row != row)))
		911	cursor_hide(vport);
4316	decky	912
3767	svoboda	913	bbp = &vport->backbuf[BB_POS(vport, col, row)];
4232	svoboda	914	bbp->glyph = fb_font_glyph(c);
3767	svoboda	915	bbp->fg_color = vport->attr.fg_color;
		916	bbp->bg_color = vport->attr.bg_color;
4316	decky	917
3739	svoboda	918	draw_vp_glyph(vport, false, col, row);
3707	decky	919
1489	palkovsky	920	vport->cur_col = col;
		921	vport->cur_row = row;
3707	decky	922
1489	palkovsky	923	vport->cur_col++;
2025	jermar	924	if (vport->cur_col >= vport->cols) {
1489	palkovsky	925	vport->cur_col = 0;
		926	vport->cur_row++;
		927	if (vport->cur_row >= vport->rows)
		928	vport->cur_row--;
1486	palkovsky	929	}
3707	decky	930
		931	cursor_show(vport);
1486	palkovsky	932	}
		933
4167	svoboda	934	/** Draw text data to viewport.
1552	palkovsky	935	*
1709	jermar	936	* @param vport Viewport id
4167	svoboda	937	* @param data Text data.
4316	decky	938	* @param x Leftmost column of the area.
		939	* @param y Topmost row of the area.
		940	* @param w Number of rows.
		941	* @param h Number of columns.
		942	*
1552	palkovsky	943	*/
4167	svoboda	944	static void draw_text_data(viewport_t vport, keyfield_t data, unsigned int x,
		945	unsigned int y, unsigned int w, unsigned int h)
1505	palkovsky	946	{
4316	decky	947	unsigned int i;
		948	unsigned int j;
3767	svoboda	949	bb_cell_t *bbp;
		950	attrs_t *a;
		951	attr_rgb_t rgb;
4316	decky	952
4167	svoboda	953	for (j = 0; j < h; j++) {
		954	for (i = 0; i < w; i++) {
		955	unsigned int col = x + i;
		956	unsigned int row = y + j;
4316	decky	957
4167	svoboda	958	bbp = &vport->backbuf[BB_POS(vport, col, row)];
4316	decky	959
4167	svoboda	960	a = &data[j * w + i].attrs;
		961	rgb_from_attr(&rgb, a);
4316	decky	962
4232	svoboda	963	bbp->glyph = fb_font_glyph(data[j * w + i].character);
4167	svoboda	964	bbp->fg_color = rgb.fg_color;
		965	bbp->bg_color = rgb.bg_color;
4316	decky	966
4167	svoboda	967	draw_vp_glyph(vport, false, col, row);
		968	}
1505	palkovsky	969	}
3707	decky	970	cursor_show(vport);
1505	palkovsky	971	}
		972
3707	decky	973
		974	static void putpixel_pixmap(void *data, unsigned int x, unsigned int y, uint32_t color)
1555	palkovsky	975	{
3707	decky	976	int pm = ((int ) data);
		977	pixmap_t *pmap = &pixmaps[pm];
		978	unsigned int pos = (y * pmap->width + x) * screen.pixelbytes;
1555	palkovsky	979
3707	decky	980	screen.rgb_conv(&pmap->data[pos], color);
		981	}
		982
		983
		984	static void putpixel(void *data, unsigned int x, unsigned int y, uint32_t color)
		985	{
		986	viewport_t vport = (viewport_t ) data;
		987	unsigned int dx = vport->x + x;
		988	unsigned int dy = vport->y + y;
		989
		990	screen.rgb_conv(&screen.fb_addr[FB_POS(dx, dy)], color);
		991	}
		992
		993
		994	/** Return first free pixmap
		995	*
		996	*/
		997	static int find_free_pixmap(void)
		998	{
		999	unsigned int i;
		1000
		1001	for (i = 0; i < MAX_PIXMAPS; i++)
1555	palkovsky	1002	if (!pixmaps[i].data)
		1003	return i;
3707	decky	1004
1555	palkovsky	1005	return -1;
		1006	}
		1007
		1008
3707	decky	1009	/** Create a new pixmap and return appropriate ID
		1010	*
		1011	*/
		1012	static int shm2pixmap(unsigned char *shm, size_t size)
1555	palkovsky	1013	{
		1014	int pm;
		1015	pixmap_t *pmap;
3707	decky	1016
1555	palkovsky	1017	pm = find_free_pixmap();
		1018	if (pm == -1)
		1019	return ELIMIT;
3707	decky	1020
1555	palkovsky	1021	pmap = &pixmaps[pm];
		1022
		1023	if (ppm_get_data(shm, size, &pmap->width, &pmap->height))
		1024	return EINVAL;
		1025
		1026	pmap->data = malloc(pmap->width * pmap->height * screen.pixelbytes);
		1027	if (!pmap->data)
		1028	return ENOMEM;
3707	decky	1029
		1030	ppm_draw(shm, size, 0, 0, pmap->width, pmap->height, putpixel_pixmap, (void *) &pm);
		1031
1555	palkovsky	1032	return pm;
		1033	}
		1034
3707	decky	1035
1552	palkovsky	1036	/** Handle shared memory communication calls
		1037	*
		1038	* Protocol for drawing pixmaps:
		1039	* - FB_PREPARE_SHM(client shm identification)
2025	jermar	1040	* - IPC_M_AS_AREA_SEND
3707	decky	1041	* - FB_DRAW_PPM(startx, starty)
1552	palkovsky	1042	* - FB_DROP_SHM
		1043	*
		1044	* Protocol for text drawing
2025	jermar	1045	* - IPC_M_AS_AREA_SEND
1552	palkovsky	1046	* - FB_DRAW_TEXT_DATA
		1047	*
		1048	* @param callid Callid of the current call
3707	decky	1049	* @param call Current call data
		1050	* @param vp Active viewport
1552	palkovsky	1051	*
3707	decky	1052	* @return false if the call was not handled byt this function, true otherwise
		1053	*
4528	svoboda	1054	* Note: this function is not thread-safe, you would have
		1055	* to redefine static variables with fibril_local.
3707	decky	1056	*
1552	palkovsky	1057	*/
3707	decky	1058	static bool shm_handle(ipc_callid_t callid, ipc_call_t *call, int vp)
1547	palkovsky	1059	{
		1060	static keyfield_t *interbuffer = NULL;
		1061	static size_t intersize = 0;
3707	decky	1062
1720	palkovsky	1063	static unsigned char *shm = NULL;
1555	palkovsky	1064	static ipcarg_t shm_id = 0;
		1065	static size_t shm_size;
3707	decky	1066
		1067	bool handled = true;
		1068	int retval = EOK;
1547	palkovsky	1069	viewport_t *vport = &viewports[vp];
3707	decky	1070	unsigned int x;
		1071	unsigned int y;
4167	svoboda	1072	unsigned int w;
		1073	unsigned int h;
3707	decky	1074
1547	palkovsky	1075	switch (IPC_GET_METHOD(*call)) {
2677	jermar	1076	case IPC_M_SHARE_OUT:
1547	palkovsky	1077	/* We accept one area for data interchange */
1555	palkovsky	1078	if (IPC_GET_ARG1(*call) == shm_id) {
2141	jermar	1079	void dest = as_get_mappable_page(IPC_GET_ARG2(call));
1555	palkovsky	1080	shm_size = IPC_GET_ARG2(*call);
4594	decky	1081	if (ipc_answer_1(callid, EOK, (sysarg_t) dest)) {
1555	palkovsky	1082	shm_id = 0;
4594	decky	1083	return false;
		1084	}
		1085	shm = dest;
3707	decky	1086
1555	palkovsky	1087	if (shm[0] != 'P')
3707	decky	1088	return false;
		1089
		1090	return true;
1547	palkovsky	1091	} else {
		1092	intersize = IPC_GET_ARG2(*call);
2015	jermar	1093	receive_comm_area(callid, call, (void *) &interbuffer);
1547	palkovsky	1094	}
3707	decky	1095	return true;
1547	palkovsky	1096	case FB_PREPARE_SHM:
1555	palkovsky	1097	if (shm_id)
1547	palkovsky	1098	retval = EBUSY;
		1099	else
1555	palkovsky	1100	shm_id = IPC_GET_ARG1(*call);
1547	palkovsky	1101	break;
		1102
		1103	case FB_DROP_SHM:
1555	palkovsky	1104	if (shm) {
		1105	as_area_destroy(shm);
		1106	shm = NULL;
1547	palkovsky	1107	}
1555	palkovsky	1108	shm_id = 0;
1547	palkovsky	1109	break;
3707	decky	1110
1555	palkovsky	1111	case FB_SHM2PIXMAP:
		1112	if (!shm) {
		1113	retval = EINVAL;
		1114	break;
		1115	}
		1116	retval = shm2pixmap(shm, shm_size);
		1117	break;
1547	palkovsky	1118	case FB_DRAW_PPM:
1555	palkovsky	1119	if (!shm) {
1547	palkovsky	1120	retval = EINVAL;
		1121	break;
		1122	}
		1123	x = IPC_GET_ARG1(*call);
		1124	y = IPC_GET_ARG2(*call);
3707	decky	1125
		1126	if ((x > vport->width) \|\| (y > vport->height)) {
1547	palkovsky	1127	retval = EINVAL;
		1128	break;
		1129	}
		1130
2025	jermar	1131	ppm_draw(shm, shm_size, IPC_GET_ARG1(*call),
3707	decky	1132	IPC_GET_ARG2(call), vport->width - x, vport->height - y, putpixel, (void ) vport);
1547	palkovsky	1133	break;
		1134	case FB_DRAW_TEXT_DATA:
4167	svoboda	1135	x = IPC_GET_ARG1(*call);
		1136	y = IPC_GET_ARG2(*call);
		1137	w = IPC_GET_ARG3(*call);
		1138	h = IPC_GET_ARG4(*call);
1547	palkovsky	1139	if (!interbuffer) {
		1140	retval = EINVAL;
		1141	break;
		1142	}
4167	svoboda	1143	if (x + w > vport->cols \|\| y + h > vport->rows) {
1547	palkovsky	1144	retval = EINVAL;
		1145	break;
		1146	}
4167	svoboda	1147	if (intersize < w * h * sizeof(*interbuffer)) {
		1148	retval = EINVAL;
		1149	break;
		1150	}
		1151	draw_text_data(vport, interbuffer, x, y, w, h);
1547	palkovsky	1152	break;
		1153	default:
3707	decky	1154	handled = false;
1547	palkovsky	1155	}
		1156
		1157	if (handled)
2619	jermar	1158	ipc_answer_0(callid, retval);
1547	palkovsky	1159	return handled;
		1160	}
		1161
3707	decky	1162
		1163	static void copy_vp_to_pixmap(viewport_t vport, pixmap_t pmap)
1552	palkovsky	1164	{
3707	decky	1165	unsigned int width = vport->width;
		1166	unsigned int height = vport->height;
		1167
1711	palkovsky	1168	if (width + vport->x > screen.xres)
		1169	width = screen.xres - vport->x;
2301	decky	1170	if (height + vport->y > screen.yres)
1711	palkovsky	1171	height = screen.yres - vport->y;
2301	decky	1172
3707	decky	1173	unsigned int realwidth = pmap->width <= width ? pmap->width : width;
		1174	unsigned int realheight = pmap->height <= height ? pmap->height : height;
2301	decky	1175
3707	decky	1176	unsigned int srcrowsize = vport->width * screen.pixelbytes;
		1177	unsigned int realrowsize = realwidth * screen.pixelbytes;
		1178
		1179	unsigned int y;
2301	decky	1180	for (y = 0; y < realheight; y++) {
3707	decky	1181	unsigned int tmp = (vport->y + y) * screen.scanline + vport->x * screen.pixelbytes;
		1182	memcpy(pmap->data + srcrowsize * y, screen.fb_addr + tmp, realrowsize);
1711	palkovsky	1183	}
		1184	}
		1185
3707	decky	1186
		1187	/** Save viewport to pixmap
		1188	*
		1189	*/
		1190	static int save_vp_to_pixmap(viewport_t *vport)
1711	palkovsky	1191	{
		1192	int pm;
		1193	pixmap_t *pmap;
3707	decky	1194
1552	palkovsky	1195	pm = find_free_pixmap();
		1196	if (pm == -1)
		1197	return ELIMIT;
		1198
		1199	pmap = &pixmaps[pm];
		1200	pmap->data = malloc(screen.pixelbytes * vport->width * vport->height);
		1201	if (!pmap->data)
		1202	return ENOMEM;
3707	decky	1203
1552	palkovsky	1204	pmap->width = vport->width;
		1205	pmap->height = vport->height;
3707	decky	1206
1711	palkovsky	1207	copy_vp_to_pixmap(vport, pmap);
1552	palkovsky	1208
		1209	return pm;
		1210	}
		1211
3707	decky	1212
1552	palkovsky	1213	/** Draw pixmap on screen
		1214	*
		1215	* @param vp Viewport to draw on
		1216	* @param pm Pixmap identifier
3707	decky	1217	*
1552	palkovsky	1218	*/
		1219	static int draw_pixmap(int vp, int pm)
		1220	{
		1221	pixmap_t *pmap = &pixmaps[pm];
		1222	viewport_t *vport = &viewports[vp];
3707	decky	1223
		1224	unsigned int width = vport->width;
		1225	unsigned int height = vport->height;
		1226
1711	palkovsky	1227	if (width + vport->x > screen.xres)
		1228	width = screen.xres - vport->x;
		1229	if (height + vport->y > screen.yres)
		1230	height = screen.yres - vport->y;
3707	decky	1231
1552	palkovsky	1232	if (!pmap->data)
		1233	return EINVAL;
3707	decky	1234
		1235	unsigned int realwidth = pmap->width <= width ? pmap->width : width;
		1236	unsigned int realheight = pmap->height <= height ? pmap->height : height;
		1237
		1238	unsigned int srcrowsize = vport->width * screen.pixelbytes;
		1239	unsigned int realrowsize = realwidth * screen.pixelbytes;
		1240
		1241	unsigned int y;
2070	jermar	1242	for (y = 0; y < realheight; y++) {
3707	decky	1243	unsigned int tmp = (vport->y + y) * screen.scanline + vport->x * screen.pixelbytes;
		1244	memcpy(screen.fb_addr + tmp, pmap->data + y * srcrowsize, realrowsize);
1552	palkovsky	1245	}
3707	decky	1246
		1247	return EOK;
1552	palkovsky	1248	}
		1249
3707	decky	1250
		1251	/** Tick animation one step forward
		1252	*
		1253	*/
		1254	static void anims_tick(void)
1646	palkovsky	1255	{
3707	decky	1256	unsigned int i;
1646	palkovsky	1257	static int counts = 0;
		1258
		1259	/* Limit redrawing */
2025	jermar	1260	counts = (counts + 1) % 8;
1646	palkovsky	1261	if (counts)
		1262	return;
4316	decky	1263
2070	jermar	1264	for (i = 0; i < MAX_ANIMATIONS; i++) {
3707	decky	1265	if ((!animations[i].animlen) \|\| (!animations[i].initialized) \|\|
		1266	(!animations[i].enabled))
1646	palkovsky	1267	continue;
3707	decky	1268
		1269	draw_pixmap(animations[i].vp, animations[i].pixmaps[animations[i].pos]);
		1270	animations[i].pos = (animations[i].pos + 1) % animations[i].animlen;
1646	palkovsky	1271	}
		1272	}
		1273
1711	palkovsky	1274
3707	decky	1275	static unsigned int pointer_x;
		1276	static unsigned int pointer_y;
		1277	static bool pointer_shown, pointer_enabled;
1711	palkovsky	1278	static int pointer_vport = -1;
		1279	static int pointer_pixmap = -1;
		1280
3707	decky	1281
		1282	static void mouse_show(void)
1711	palkovsky	1283	{
2070	jermar	1284	int i, j;
1711	palkovsky	1285	int visibility;
		1286	int color;
		1287	int bytepos;
3707	decky	1288
		1289	if ((pointer_shown) \|\| (!pointer_enabled))
1723	palkovsky	1290	return;
3707	decky	1291
3723	svoboda	1292	/* Save image under the pointer. */
1711	palkovsky	1293	if (pointer_vport == -1) {
3707	decky	1294	pointer_vport = vport_create(pointer_x, pointer_y, pointer_width, pointer_height);
1711	palkovsky	1295	if (pointer_vport < 0)
		1296	return;
		1297	} else {
		1298	viewports[pointer_vport].x = pointer_x;
		1299	viewports[pointer_vport].y = pointer_y;
		1300	}
3707	decky	1301
1711	palkovsky	1302	if (pointer_pixmap == -1)
		1303	pointer_pixmap = save_vp_to_pixmap(&viewports[pointer_vport]);
		1304	else
3707	decky	1305	copy_vp_to_pixmap(&viewports[pointer_vport], &pixmaps[pointer_pixmap]);
		1306
3723	svoboda	1307	/* Draw mouse pointer. */
2025	jermar	1308	for (i = 0; i < pointer_height; i++)
		1309	for (j = 0; j < pointer_width; j++) {
		1310	bytepos = i * ((pointer_width - 1) / 8 + 1) + j / 8;
2070	jermar	1311	visibility = pointer_mask_bits[bytepos] &
2619	jermar	1312	(1 << (j % 8));
1711	palkovsky	1313	if (visibility) {
2619	jermar	1314	color = pointer_bits[bytepos] &
		1315	(1 << (j % 8)) ? 0 : 0xffffff;
2025	jermar	1316	if (pointer_x + j < screen.xres && pointer_y +
2619	jermar	1317	i < screen.yres)
2025	jermar	1318	putpixel(&viewports[0], pointer_x + j,
2619	jermar	1319	pointer_y + i, color);
1711	palkovsky	1320	}
		1321	}
		1322	pointer_shown = 1;
		1323	}
		1324
3707	decky	1325
		1326	static void mouse_hide(void)
1711	palkovsky	1327	{
3723	svoboda	1328	/* Restore image under the pointer. */
1711	palkovsky	1329	if (pointer_shown) {
		1330	draw_pixmap(pointer_vport, pointer_pixmap);
		1331	pointer_shown = 0;
		1332	}
		1333	}
		1334
3707	decky	1335
		1336	static void mouse_move(unsigned int x, unsigned int y)
1711	palkovsky	1337	{
		1338	mouse_hide();
		1339	pointer_x = x;
		1340	pointer_y = y;
		1341	mouse_show();
		1342	}
		1343
3707	decky	1344
		1345	static int anim_handle(ipc_callid_t callid, ipc_call_t *call, int vp)
1646	palkovsky	1346	{
3707	decky	1347	bool handled = true;
		1348	int retval = EOK;
		1349	int i, nvp;
1646	palkovsky	1350	int newval;
3707	decky	1351
1646	palkovsky	1352	switch (IPC_GET_METHOD(*call)) {
		1353	case FB_ANIM_CREATE:
		1354	nvp = IPC_GET_ARG1(*call);
		1355	if (nvp == -1)
		1356	nvp = vp;
2025	jermar	1357	if (nvp >= MAX_VIEWPORTS \|\| nvp < 0 \|\|
		1358	!viewports[nvp].initialized) {
1646	palkovsky	1359	retval = EINVAL;
		1360	break;
		1361	}
2025	jermar	1362	for (i = 0; i < MAX_ANIMATIONS; i++) {
		1363	if (!animations[i].initialized)
1646	palkovsky	1364	break;
		1365	}
		1366	if (i == MAX_ANIMATIONS) {
		1367	retval = ELIMIT;
		1368	break;
		1369	}
		1370	animations[i].initialized = 1;
		1371	animations[i].animlen = 0;
		1372	animations[i].pos = 0;
		1373	animations[i].enabled = 0;
		1374	animations[i].vp = nvp;
		1375	retval = i;
		1376	break;
		1377	case FB_ANIM_DROP:
		1378	i = IPC_GET_ARG1(*call);
1720	palkovsky	1379	if (i >= MAX_ANIMATIONS \|\| i < 0) {
1646	palkovsky	1380	retval = EINVAL;
		1381	break;
		1382	}
		1383	animations[i].initialized = 0;
		1384	break;
		1385	case FB_ANIM_ADDPIXMAP:
		1386	i = IPC_GET_ARG1(*call);
2025	jermar	1387	if (i >= MAX_ANIMATIONS \|\| i < 0 \|\|
		1388	!animations[i].initialized) {
1646	palkovsky	1389	retval = EINVAL;
		1390	break;
		1391	}
		1392	if (animations[i].animlen == MAX_ANIM_LEN) {
		1393	retval = ELIMIT;
		1394	break;
		1395	}
		1396	newval = IPC_GET_ARG2(*call);
2025	jermar	1397	if (newval < 0 \|\| newval > MAX_PIXMAPS \|\|
		1398	!pixmaps[newval].data) {
1646	palkovsky	1399	retval = EINVAL;
		1400	break;
		1401	}
		1402	animations[i].pixmaps[animations[i].animlen++] = newval;
		1403	break;
		1404	case FB_ANIM_CHGVP:
		1405	i = IPC_GET_ARG1(*call);
		1406	if (i >= MAX_ANIMATIONS \|\| i < 0) {
		1407	retval = EINVAL;
		1408	break;
		1409	}
		1410	nvp = IPC_GET_ARG2(*call);
		1411	if (nvp == -1)
		1412	nvp = vp;
2025	jermar	1413	if (nvp >= MAX_VIEWPORTS \|\| nvp < 0 \|\|
		1414	!viewports[nvp].initialized) {
1646	palkovsky	1415	retval = EINVAL;
		1416	break;
		1417	}
		1418	animations[i].vp = nvp;
		1419	break;
		1420	case FB_ANIM_START:
		1421	case FB_ANIM_STOP:
		1422	i = IPC_GET_ARG1(*call);
		1423	if (i >= MAX_ANIMATIONS \|\| i < 0) {
		1424	retval = EINVAL;
		1425	break;
		1426	}
		1427	newval = (IPC_GET_METHOD(*call) == FB_ANIM_START);
		1428	if (newval ^ animations[i].enabled) {
		1429	animations[i].enabled = newval;
		1430	anims_enabled += newval ? 1 : -1;
		1431	}
		1432	break;
		1433	default:
		1434	handled = 0;
		1435	}
		1436	if (handled)
2619	jermar	1437	ipc_answer_0(callid, retval);
1646	palkovsky	1438	return handled;
		1439	}
		1440
3707	decky	1441
		1442	/** Handler for messages concerning pixmap handling
		1443	*
		1444	*/
		1445	static int pixmap_handle(ipc_callid_t callid, ipc_call_t *call, int vp)
1552	palkovsky	1446	{
3707	decky	1447	bool handled = true;
		1448	int retval = EOK;
		1449	int i, nvp;
		1450
1552	palkovsky	1451	switch (IPC_GET_METHOD(*call)) {
		1452	case FB_VP_DRAW_PIXMAP:
		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	break;
		1460	}
		1461	i = IPC_GET_ARG2(*call);
		1462	retval = draw_pixmap(nvp, i);
		1463	break;
		1464	case FB_VP2PIXMAP:
		1465	nvp = IPC_GET_ARG1(*call);
		1466	if (nvp == -1)
		1467	nvp = vp;
2025	jermar	1468	if (nvp < 0 \|\| nvp >= MAX_VIEWPORTS \|\|
		1469	!viewports[nvp].initialized)
1552	palkovsky	1470	retval = EINVAL;
		1471	else
1711	palkovsky	1472	retval = save_vp_to_pixmap(&viewports[nvp]);
1552	palkovsky	1473	break;
		1474	case FB_DROP_PIXMAP:
		1475	i = IPC_GET_ARG1(*call);
		1476	if (i >= MAX_PIXMAPS) {
		1477	retval = EINVAL;
		1478	break;
		1479	}
		1480	if (pixmaps[i].data) {
		1481	free(pixmaps[i].data);
		1482	pixmaps[i].data = NULL;
		1483	}
		1484	break;
		1485	default:
		1486	handled = 0;
		1487	}
3707	decky	1488
1552	palkovsky	1489	if (handled)
2619	jermar	1490	ipc_answer_0(callid, retval);
1552	palkovsky	1491	return handled;
		1492
		1493	}
		1494
3767	svoboda	1495	static int rgb_from_style(attr_rgb_t *rgb, int style)
		1496	{
		1497	switch (style) {
		1498	case STYLE_NORMAL:
		1499	rgb->fg_color = color_table[COLOR_BLACK];
		1500	rgb->bg_color = color_table[COLOR_WHITE];
		1501	break;
		1502	case STYLE_EMPHASIS:
		1503	rgb->fg_color = color_table[COLOR_RED];
		1504	rgb->bg_color = color_table[COLOR_WHITE];
		1505	break;
		1506	default:
		1507	return EINVAL;
		1508	}
		1509
		1510	return EOK;
		1511	}
		1512
		1513	static int rgb_from_idx(attr_rgb_t *rgb, ipcarg_t fg_color,
		1514	ipcarg_t bg_color, ipcarg_t flags)
		1515	{
		1516	fg_color = (fg_color & 7) \| ((flags & CATTR_BRIGHT) ? 8 : 0);
		1517	bg_color = (bg_color & 7) \| ((flags & CATTR_BRIGHT) ? 8 : 0);
		1518
		1519	rgb->fg_color = color_table[fg_color];
		1520	rgb->bg_color = color_table[bg_color];
		1521
		1522	return EOK;
		1523	}
		1524
3792	svoboda	1525	static int rgb_from_attr(attr_rgb_t rgb, const attrs_t a)
		1526	{
		1527	int rc;
		1528
		1529	switch (a->t) {
		1530	case at_style:
		1531	rc = rgb_from_style(rgb, a->a.s.style);
		1532	break;
		1533	case at_idx:
		1534	rc = rgb_from_idx(rgb, a->a.i.fg_color,
		1535	a->a.i.bg_color, a->a.i.flags);
		1536	break;
		1537	case at_rgb:
		1538	*rgb = a->a.r;
		1539	rc = EOK;
		1540	break;
		1541	}
		1542
		1543	return rc;
		1544	}
		1545
3767	svoboda	1546	static int fb_set_style(viewport_t *vport, ipcarg_t style)
		1547	{
		1548	return rgb_from_style(&vport->attr, (int) style);
		1549	}
		1550
		1551	static int fb_set_color(viewport_t *vport, ipcarg_t fg_color,
		1552	ipcarg_t bg_color, ipcarg_t flags)
		1553	{
		1554	return rgb_from_idx(&vport->attr, fg_color, bg_color, flags);
		1555	}
		1556
1498	palkovsky	1557	/** Function for handling connections to FB
		1558	*
		1559	*/
3707	decky	1560	static void fb_client_connection(ipc_callid_t iid, ipc_call_t *icall)
1363	vana	1561	{
3707	decky	1562	unsigned int vp = 0;
		1563	viewport_t *vport = &viewports[vp];
		1564
1485	palkovsky	1565	if (client_connected) {
2619	jermar	1566	ipc_answer_0(iid, ELIMIT);
1485	palkovsky	1567	return;
		1568	}
3707	decky	1569
		1570	/* Accept connection */
		1571	client_connected = true;
		1572	ipc_answer_0(iid, EOK);
		1573
		1574	while (true) {
		1575	ipc_callid_t callid;
		1576	ipc_call_t call;
		1577	int retval;
		1578	unsigned int i;
		1579	int scroll;
4232	svoboda	1580	wchar_t ch;
4457	decky	1581	unsigned int col, row;
3707	decky	1582
		1583	if ((vport->cursor_active) \|\| (anims_enabled))
2070	jermar	1584	callid = async_get_call_timeout(&call, 250000);
1640	palkovsky	1585	else
		1586	callid = async_get_call(&call);
3707	decky	1587
1713	palkovsky	1588	mouse_hide();
1500	palkovsky	1589	if (!callid) {
1673	palkovsky	1590	cursor_blink(vport);
1646	palkovsky	1591	anims_tick();
1723	palkovsky	1592	mouse_show();
1500	palkovsky	1593	continue;
		1594	}
3707	decky	1595
1547	palkovsky	1596	if (shm_handle(callid, &call, vp))
		1597	continue;
3707	decky	1598
1552	palkovsky	1599	if (pixmap_handle(callid, &call, vp))
		1600	continue;
3707	decky	1601
1646	palkovsky	1602	if (anim_handle(callid, &call, vp))
		1603	continue;
3707	decky	1604
		1605	switch (IPC_GET_METHOD(call)) {
1485	palkovsky	1606	case IPC_M_PHONE_HUNGUP:
3707	decky	1607	client_connected = false;
		1608
		1609	/* Cleanup other viewports */
2025	jermar	1610	for (i = 1; i < MAX_VIEWPORTS; i++)
3707	decky	1611	vport->initialized = false;
		1612
		1613	/* Exit thread */
		1614	return;
		1615
1485	palkovsky	1616	case FB_PUTCHAR:
4232	svoboda	1617	ch = IPC_GET_ARG1(call);
4457	decky	1618	col = IPC_GET_ARG2(call);
		1619	row = IPC_GET_ARG3(call);
3707	decky	1620
		1621	if ((col >= vport->cols) \|\| (row >= vport->rows)) {
1485	palkovsky	1622	retval = EINVAL;
		1623	break;
		1624	}
2619	jermar	1625	ipc_answer_0(callid, EOK);
3707	decky	1626
4232	svoboda	1627	draw_char(vport, ch, col, row);
3707	decky	1628
		1629	/* Message already answered */
		1630	continue;
1485	palkovsky	1631	case FB_CLEAR:
3707	decky	1632	vport_clear(vport);
		1633	cursor_show(vport);
		1634	retval = EOK;
1485	palkovsky	1635	break;
3707	decky	1636	case FB_CURSOR_GOTO:
4457	decky	1637	col = IPC_GET_ARG1(call);
		1638	row = IPC_GET_ARG2(call);
3707	decky	1639
		1640	if ((col >= vport->cols) \|\| (row >= vport->rows)) {
1486	palkovsky	1641	retval = EINVAL;
		1642	break;
		1643	}
3707	decky	1644	retval = EOK;
		1645
1673	palkovsky	1646	cursor_hide(vport);
1486	palkovsky	1647	vport->cur_col = col;
		1648	vport->cur_row = row;
3707	decky	1649	cursor_show(vport);
		1650	break;
1486	palkovsky	1651	case FB_CURSOR_VISIBILITY:
1673	palkovsky	1652	cursor_hide(vport);
1500	palkovsky	1653	vport->cursor_active = IPC_GET_ARG1(call);
3707	decky	1654	cursor_show(vport);
		1655	retval = EOK;
1486	palkovsky	1656	break;
1485	palkovsky	1657	case FB_GET_CSIZE:
4457	decky	1658	ipc_answer_2(callid, EOK, vport->cols, vport->rows);
1485	palkovsky	1659	continue;
4644	svoboda	1660	case FB_GET_COLOR_CAP:
		1661	ipc_answer_1(callid, EOK, FB_CCAP_RGB);
		1662	continue;
1486	palkovsky	1663	case FB_SCROLL:
3707	decky	1664	scroll = IPC_GET_ARG1(call);
		1665	if ((scroll > (int) vport->rows) \|\| (scroll < (-(int) vport->rows))) {
1486	palkovsky	1666	retval = EINVAL;
		1667	break;
		1668	}
1673	palkovsky	1669	cursor_hide(vport);
3707	decky	1670	vport_scroll(vport, scroll);
		1671	cursor_show(vport);
		1672	retval = EOK;
1486	palkovsky	1673	break;
		1674	case FB_VIEWPORT_SWITCH:
		1675	i = IPC_GET_ARG1(call);
3707	decky	1676	if (i >= MAX_VIEWPORTS) {
1486	palkovsky	1677	retval = EINVAL;
		1678	break;
		1679	}
3707	decky	1680	if (!viewports[i].initialized) {
1486	palkovsky	1681	retval = EADDRNOTAVAIL;
		1682	break;
		1683	}
1673	palkovsky	1684	cursor_hide(vport);
1486	palkovsky	1685	vp = i;
		1686	vport = &viewports[vp];
3707	decky	1687	cursor_show(vport);
		1688	retval = EOK;
1486	palkovsky	1689	break;
		1690	case FB_VIEWPORT_CREATE:
3707	decky	1691	retval = vport_create(IPC_GET_ARG1(call) >> 16,
2619	jermar	1692	IPC_GET_ARG1(call) & 0xffff,
		1693	IPC_GET_ARG2(call) >> 16,
		1694	IPC_GET_ARG2(call) & 0xffff);
1486	palkovsky	1695	break;
		1696	case FB_VIEWPORT_DELETE:
		1697	i = IPC_GET_ARG1(call);
3707	decky	1698	if (i >= MAX_VIEWPORTS) {
1486	palkovsky	1699	retval = EINVAL;
		1700	break;
		1701	}
3707	decky	1702	if (!viewports[i].initialized) {
1486	palkovsky	1703	retval = EADDRNOTAVAIL;
		1704	break;
		1705	}
3707	decky	1706	viewports[i].initialized = false;
		1707	if (viewports[i].bgpixel)
		1708	free(viewports[i].bgpixel);
		1709	if (viewports[i].backbuf)
		1710	free(viewports[i].backbuf);
		1711	retval = EOK;
1486	palkovsky	1712	break;
		1713	case FB_SET_STYLE:
3767	svoboda	1714	retval = fb_set_style(vport, IPC_GET_ARG1(call));
		1715	break;
		1716	case FB_SET_COLOR:
		1717	retval = fb_set_color(vport, IPC_GET_ARG1(call),
		1718	IPC_GET_ARG2(call), IPC_GET_ARG3(call));
		1719	break;
		1720	case FB_SET_RGB_COLOR:
		1721	vport->attr.fg_color = IPC_GET_ARG1(call);
		1722	vport->attr.bg_color = IPC_GET_ARG2(call);
3707	decky	1723	retval = EOK;
1486	palkovsky	1724	break;
		1725	case FB_GET_RESOLUTION:
2619	jermar	1726	ipc_answer_2(callid, EOK, screen.xres, screen.yres);
1486	palkovsky	1727	continue;
1707	palkovsky	1728	case FB_POINTER_MOVE:
3707	decky	1729	pointer_enabled = true;
1711	palkovsky	1730	mouse_move(IPC_GET_ARG1(call), IPC_GET_ARG2(call));
3707	decky	1731	retval = EOK;
1707	palkovsky	1732	break;
4326	svoboda	1733	case FB_SCREEN_YIELD:
		1734	case FB_SCREEN_RECLAIM:
4325	svoboda	1735	retval = EOK;
		1736	break;
1485	palkovsky	1737	default:
		1738	retval = ENOENT;
		1739	}
2619	jermar	1740	ipc_answer_0(callid, retval);
1363	vana	1741	}
1485	palkovsky	1742	}
1363	vana	1743
3707	decky	1744	/** Initialization of framebuffer
		1745	*
		1746	*/
		1747	int fb_init(void)
1485	palkovsky	1748	{
1490	palkovsky	1749	async_set_client_connection(fb_client_connection);
1485	palkovsky	1750
3707	decky	1751	void fb_ph_addr = (void ) sysinfo_value("fb.address.physical");
		1752	unsigned int fb_offset = sysinfo_value("fb.offset");
		1753	unsigned int fb_width = sysinfo_value("fb.width");
		1754	unsigned int fb_height = sysinfo_value("fb.height");
		1755	unsigned int fb_scanline = sysinfo_value("fb.scanline");
		1756	unsigned int fb_visual = sysinfo_value("fb.visual");
4651	pillai	1757
3707	decky	1758	unsigned int fbsize = fb_scanline * fb_height;
		1759	void *fb_addr = as_get_mappable_page(fbsize);
4651	pillai	1760
3908	decky	1761	if (physmem_map(fb_ph_addr + fb_offset, fb_addr,
		1762	ALIGN_UP(fbsize, PAGE_SIZE) >> PAGE_WIDTH, AS_AREA_READ \| AS_AREA_WRITE) != 0)
		1763	return -1;
4651	pillai	1764
3707	decky	1765	if (screen_init(fb_addr, fb_width, fb_height, fb_scanline, fb_visual))
1993	decky	1766	return 0;
4651	pillai	1767
1993	decky	1768	return -1;
1363	vana	1769	}
1490	palkovsky	1770
3707	decky	1771	/**
1649	cejka	1772	* @}
		1773	*/

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(root)//branches/arm/uspace/srv/fb/fb.c – Rev 4651