WebSVN – HelenOS – Blame – //branches/dd/uspace/srv/fb/fb.c

Rev	Author	Line No.	Line
4419	trochtova	1	/*
		2	* Copyright (c) 2008 Martin Decky
		3	* Copyright (c) 2006 Jakub Vana
		4	* Copyright (c) 2006 Ondrej Palkovsky
		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
		31	/**
		32	* @defgroup fb Graphical framebuffer
4420	trochtova	33	* @brief HelenOS graphical framebuffer.
4419	trochtova	34	* @ingroup fbs
		35	* @{
		36	*/
		37
		38	/** @file
		39	*/
		40
		41	#include <stdlib.h>
		42	#include <unistd.h>
		43	#include <string.h>
		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>
		50	#include <ipc/ns.h>
		51	#include <ipc/services.h>
		52	#include <kernel/errno.h>
		53	#include <kernel/genarch/fb/visuals.h>
4537	trochtova	54	#include <io/color.h>
		55	#include <io/style.h>
4419	trochtova	56	#include <async.h>
4537	trochtova	57	#include <fibril.h>
4419	trochtova	58	#include <bool.h>
4668	trochtova	59	#include <stdio.h>
4419	trochtova	60
		61	#include "font-8x16.h"
		62	#include "fb.h"
		63	#include "main.h"
		64	#include "../console/screenbuffer.h"
		65	#include "ppm.h"
		66
		67	#include "pointer.xbm"
		68	#include "pointer_mask.xbm"
		69
		70	#define DEFAULT_BGCOLOR 0xf0f0f0
		71	#define DEFAULT_FGCOLOR 0x000000
		72
4420	trochtova	73	#define GLYPH_UNAVAIL '?'
4419	trochtova	74
		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 /
		79
		80	/** Function to render a pixel from a RGB value. */
		81	typedef void (rgb_conv_t)(void , uint32_t);
		82
4420	trochtova	83	/** Function to render a bit mask. */
		84	typedef void (mask_conv_t)(void , bool);
		85
4419	trochtova	86	/** Function to draw a glyph. */
		87	typedef void (*dg_t)(unsigned int x, unsigned int y, bool cursor,
		88	uint8_t *glyphs, uint32_t glyph, uint32_t fg_color, uint32_t bg_color);
		89
		90	struct {
		91	uint8_t *fb_addr;
		92
		93	unsigned int xres;
		94	unsigned int yres;
		95
		96	unsigned int scanline;
		97	unsigned int glyphscanline;
		98
		99	unsigned int pixelbytes;
		100	unsigned int glyphbytes;
4420	trochtova	101
4419	trochtova	102	/** Pre-rendered mask for rendering glyphs. Specific for the visual. */
		103	uint8_t *glyphs;
		104
		105	rgb_conv_t rgb_conv;
4420	trochtova	106	mask_conv_t mask_conv;
4419	trochtova	107	} screen;
		108
		109	/** Backbuffer character cell. */
		110	typedef struct {
		111	uint32_t glyph;
		112	uint32_t fg_color;
		113	uint32_t bg_color;
		114	} bb_cell_t;
		115
		116	typedef struct {
		117	bool initialized;
		118	unsigned int x;
		119	unsigned int y;
		120	unsigned int width;
		121	unsigned int height;
		122
		123	/* Text support in window */
		124	unsigned int cols;
		125	unsigned int rows;
		126
		127	/*
		128	* Style and glyphs for text printing
		129	*/
4420	trochtova	130
4419	trochtova	131	/** Current attributes. */
		132	attr_rgb_t attr;
4420	trochtova	133
4419	trochtova	134	uint8_t *bgpixel;
4420	trochtova	135
4419	trochtova	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	*/
		141	dg_t dglyph;
		142
		143	/* Auto-cursor position */
		144	bool cursor_active;
		145	unsigned int cur_col;
		146	unsigned int cur_row;
		147	bool cursor_shown;
		148
		149	/* Back buffer */
		150	bb_cell_t *backbuf;
		151	unsigned int bbsize;
		152	} viewport_t;
		153
		154	typedef struct {
		155	bool initialized;
		156	bool enabled;
		157	unsigned int vp;
		158
		159	unsigned int pos;
		160	unsigned int animlen;
		161	unsigned int pixmaps[MAX_ANIM_LEN];
		162	} animation_t;
		163
		164	static animation_t animations[MAX_ANIMATIONS];
		165	static bool anims_enabled;
		166
		167	typedef struct {
		168	unsigned int width;
		169	unsigned int height;
		170	uint8_t *data;
		171	} pixmap_t;
		172
		173	static pixmap_t pixmaps[MAX_PIXMAPS];
		174	static viewport_t viewports[128];
		175
		176	static bool client_connected = false; /*< Allow only 1 connection /
		177
		178	static uint32_t color_table[16] = {
4420	trochtova	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,
4419	trochtova	196	};
		197
		198	static int rgb_from_attr(attr_rgb_t rgb, const attrs_t a);
		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
		206	static void draw_glyph_aligned(unsigned int x, unsigned int y, bool cursor,
		207	uint8_t *glyphs, uint32_t glyph, uint32_t fg_color, uint32_t bg_color);
		208	static void draw_glyph_fallback(unsigned int x, unsigned int y, bool cursor,
		209	uint8_t *glyphs, uint32_t glyph, uint32_t fg_color, uint32_t bg_color);
		210
		211	static void draw_vp_glyph(viewport_t *vport, bool cursor, unsigned int col,
		212	unsigned int row);
		213
		214
		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))
		218
		219	#define COL2X(col) ((col) * FONT_WIDTH)
		220	#define ROW2Y(row) ((row) * FONT_SCANLINES)
		221
		222	#define X2COL(x) ((x) / FONT_WIDTH)
		223	#define Y2ROW(y) ((y) / FONT_SCANLINES)
		224
		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)
		228
		229
		230	/** ARGB 8:8:8:8 conversion
		231	*
		232	*/
		233	static void rgb_0888(void *dst, uint32_t rgb)
		234	{
4420	trochtova	235	((uint32_t ) dst) = rgb & 0x00ffffff;
4419	trochtova	236	}
		237
4420	trochtova	238	static void mask_0888(void *dst, bool mask)
		239	{
		240	((uint32_t ) dst) = (mask ? 0x00ffffff : 0);
		241	}
4419	trochtova	242
4420	trochtova	243
4419	trochtova	244	/** ABGR 8:8:8:8 conversion
		245	*
		246	*/
		247	static void bgr_0888(void *dst, uint32_t rgb)
		248	{
		249	((uint32_t ) dst)
		250	= (BLUE(rgb, 8) << 16) \| (GREEN(rgb, 8) << 8) \| RED(rgb, 8);
		251	}
		252
		253
		254	/** RGB 8:8:8 conversion
		255	*
		256	*/
		257	static void rgb_888(void *dst, uint32_t rgb)
		258	{
		259	((uint8_t *) dst)[0] = BLUE(rgb, 8);
		260	((uint8_t *) dst)[1] = GREEN(rgb, 8);
		261	((uint8_t *) dst)[2] = RED(rgb, 8);
		262	}
		263
4420	trochtova	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	}
4419	trochtova	276
4420	trochtova	277
4419	trochtova	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
		289	/** RGB 5:5:5 conversion
		290	*
		291	*/
		292	static void rgb_555(void *dst, uint32_t rgb)
		293	{
		294	((uint16_t ) dst)
		295	= (RED(rgb, 5) << 10) \| (GREEN(rgb, 5) << 5) \| BLUE(rgb, 5);
		296	}
		297
4420	trochtova	298	static void mask_555(void *dst, bool mask)
		299	{
		300	((uint16_t ) dst) = (mask ? 0x7fff : 0);
		301	}
4419	trochtova	302
4420	trochtova	303
4419	trochtova	304	/** RGB 5:6:5 conversion
		305	*
		306	*/
		307	static void rgb_565(void *dst, uint32_t rgb)
		308	{
		309	((uint16_t ) dst)
		310	= (RED(rgb, 5) << 11) \| (GREEN(rgb, 6) << 5) \| BLUE(rgb, 5);
		311	}
		312
4420	trochtova	313	static void mask_565(void *dst, bool mask)
		314	{
		315	((uint16_t ) dst) = (mask ? 0xffff : 0);
		316	}
4419	trochtova	317
4420	trochtova	318
4419	trochtova	319	/** RGB 3:2:3
		320	*
		321	*/
		322	static void rgb_323(void *dst, uint32_t rgb)
		323	{
		324	((uint8_t ) dst)
		325	= ~((RED(rgb, 3) << 5) \| (GREEN(rgb, 2) << 3) \| BLUE(rgb, 3));
		326	}
		327
4420	trochtova	328	static void mask_323(void *dst, bool mask)
		329	{
		330	((uint8_t ) dst) = (mask ? 0xff : 0);
		331	}
		332
4419	trochtova	333	/** Draw a filled rectangle.
		334	*
		335	* @note Need real implementation that does not access VRAM twice.
4420	trochtova	336	*
4419	trochtova	337	*/
		338	static void draw_filled_rect(unsigned int x0, unsigned int y0, unsigned int x1,
		339	unsigned int y1, uint32_t color)
		340	{
4420	trochtova	341	unsigned int x;
		342	unsigned int y;
4419	trochtova	343	unsigned int copy_bytes;
4420	trochtova	344
		345	uint8_t *sp;
		346	uint8_t *dp;
4419	trochtova	347	uint8_t cbuf[4];
4420	trochtova	348
		349	if ((y0 >= y1) \|\| (x0 >= x1))
		350	return;
		351
4419	trochtova	352	screen.rgb_conv(cbuf, color);
4420	trochtova	353
4419	trochtova	354	sp = &screen.fb_addr[FB_POS(x0, y0)];
		355	dp = sp;
4420	trochtova	356
4419	trochtova	357	/* Draw the first line. */
		358	for (x = x0; x < x1; x++) {
		359	memcpy(dp, cbuf, screen.pixelbytes);
		360	dp += screen.pixelbytes;
		361	}
4420	trochtova	362
4419	trochtova	363	dp = sp + screen.scanline;
		364	copy_bytes = (x1 - x0) * screen.pixelbytes;
4420	trochtova	365
4419	trochtova	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	}
		371	}
		372
		373	/** Redraw viewport.
		374	*
		375	* @param vport Viewport to redraw
		376	*
		377	*/
		378	static void vport_redraw(viewport_t *vport)
		379	{
4537	trochtova	380	unsigned int col;
4420	trochtova	381	unsigned int row;
		382
4419	trochtova	383	for (row = 0; row < vport->rows; row++) {
		384	for (col = 0; col < vport->cols; col++) {
		385	draw_vp_glyph(vport, false, col, row);
		386	}
		387	}
4420	trochtova	388
4419	trochtova	389	if (COL2X(vport->cols) < vport->width) {
		390	draw_filled_rect(
		391	vport->x + COL2X(vport->cols), vport->y,
		392	vport->x + vport->width, vport->y + vport->height,
		393	vport->attr.bg_color);
		394	}
4420	trochtova	395
4419	trochtova	396	if (ROW2Y(vport->rows) < vport->height) {
		397	draw_filled_rect(
		398	vport->x, vport->y + ROW2Y(vport->rows),
		399	vport->x + vport->width, vport->y + vport->height,
		400	vport->attr.bg_color);
		401	}
		402	}
		403
		404	static void backbuf_clear(bb_cell_t *backbuf, size_t len, uint32_t fg_color,
		405	uint32_t bg_color)
		406	{
4420	trochtova	407	size_t i;
		408
4419	trochtova	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
		416	/** Clear viewport.
		417	*
		418	* @param vport Viewport to clear
		419	*
		420	*/
		421	static void vport_clear(viewport_t *vport)
		422	{
		423	backbuf_clear(vport->backbuf, vport->cols * vport->rows,
		424	vport->attr.fg_color, vport->attr.bg_color);
		425	vport_redraw(vport);
		426	}
		427
		428	/** Scroll viewport by the specified number of lines.
		429	*
		430	* @param vport Viewport to scroll
		431	* @param lines Number of lines to scroll
		432	*
		433	*/
		434	static void vport_scroll(viewport_t *vport, int lines)
		435	{
4537	trochtova	436	unsigned int col;
4420	trochtova	437	unsigned int row;
		438	unsigned int x;
		439	unsigned int y;
4419	trochtova	440	uint32_t glyph;
		441	uint32_t fg_color;
		442	uint32_t bg_color;
4420	trochtova	443	bb_cell_t *bbp;
		444	bb_cell_t *xbp;
		445
4419	trochtova	446	/*
		447	* Redraw.
		448	*/
4420	trochtova	449
4419	trochtova	450	y = vport->y;
		451	for (row = 0; row < vport->rows; row++) {
		452	x = vport->x;
		453	for (col = 0; col < vport->cols; col++) {
4668	trochtova	454	if (((int) row + lines >= 0) &&
		455	((int) row + lines < (int) vport->rows)) {
4419	trochtova	456	xbp = &vport->backbuf[BB_POS(vport, col, row + lines)];
		457	bbp = &vport->backbuf[BB_POS(vport, col, row)];
4420	trochtova	458
4419	trochtova	459	glyph = xbp->glyph;
		460	fg_color = xbp->fg_color;
		461	bg_color = xbp->bg_color;
4420	trochtova	462
		463	if ((bbp->glyph == glyph)
		464	&& (bbp->fg_color == xbp->fg_color)
		465	&& (bbp->bg_color == xbp->bg_color)) {
4419	trochtova	466	x += FONT_WIDTH;
		467	continue;
		468	}
		469	} else {
		470	glyph = 0;
		471	fg_color = vport->attr.fg_color;
		472	bg_color = vport->attr.bg_color;
		473	}
4420	trochtova	474
4419	trochtova	475	(*vport->dglyph)(x, y, false, screen.glyphs, glyph,
		476	fg_color, bg_color);
		477	x += FONT_WIDTH;
		478	}
		479	y += FONT_SCANLINES;
		480	}
4420	trochtova	481
4419	trochtova	482	/*
		483	* Scroll backbuffer.
		484	*/
4420	trochtova	485
4419	trochtova	486	if (lines > 0) {
		487	memmove(vport->backbuf, vport->backbuf + vport->cols * lines,
		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);
		491	} else {
		492	memmove(vport->backbuf - vport->cols * lines, vport->backbuf,
		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);
		496	}
		497	}
		498
		499	/** Render glyphs
		500	*
		501	* Convert glyphs from device independent font
		502	* description to current visual representation.
4420	trochtova	503	*
4419	trochtova	504	*/
		505	static void render_glyphs(void)
		506	{
		507	unsigned int glyph;
4420	trochtova	508
4419	trochtova	509	for (glyph = 0; glyph < FONT_GLYPHS; glyph++) {
		510	unsigned int y;
4420	trochtova	511
4419	trochtova	512	for (y = 0; y < FONT_SCANLINES; y++) {
		513	unsigned int x;
4420	trochtova	514
4419	trochtova	515	for (x = 0; x < FONT_WIDTH; x++) {
4420	trochtova	516	screen.mask_conv(&screen.glyphs[GLYPH_POS(glyph, y, false) + x * screen.pixelbytes],
		517	(fb_font[glyph][y] & (1 << (7 - x))) ? true : false);
		518
		519	screen.mask_conv(&screen.glyphs[GLYPH_POS(glyph, y, true) + x * screen.pixelbytes],
		520	(fb_font[glyph][y] & (1 << (7 - x))) ? false : true);
4419	trochtova	521	}
		522	}
		523	}
		524	}
		525
		526	/** Create new viewport
		527	*
		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	*
		535	*/
		536	static int vport_create(unsigned int x, unsigned int y,
		537	unsigned int width, unsigned int height)
		538	{
		539	unsigned int i;
		540
		541	for (i = 0; i < MAX_VIEWPORTS; i++) {
		542	if (!viewports[i].initialized)
		543	break;
		544	}
4420	trochtova	545
4419	trochtova	546	if (i == MAX_VIEWPORTS)
		547	return ELIMIT;
		548
		549	unsigned int cols = width / FONT_WIDTH;
		550	unsigned int rows = height / FONT_SCANLINES;
		551	unsigned int bbsize = cols * rows * sizeof(bb_cell_t);
		552	unsigned int word_size = sizeof(unsigned long);
		553
		554	bb_cell_t backbuf = (bb_cell_t ) malloc(bbsize);
		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	}
4420	trochtova	563
4419	trochtova	564	backbuf_clear(backbuf, cols * rows, DEFAULT_FGCOLOR, DEFAULT_BGCOLOR);
		565	memset(bgpixel, 0, screen.pixelbytes);
		566
		567	viewports[i].x = x;
		568	viewports[i].y = y;
		569	viewports[i].width = width;
		570	viewports[i].height = height;
		571
		572	viewports[i].cols = cols;
		573	viewports[i].rows = rows;
		574
		575	viewports[i].attr.bg_color = DEFAULT_BGCOLOR;
		576	viewports[i].attr.fg_color = DEFAULT_FGCOLOR;
		577
		578	viewports[i].bgpixel = bgpixel;
4420	trochtova	579
4419	trochtova	580	/*
4420	trochtova	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
4419	trochtova	585	*
		586	*/
4420	trochtova	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)) {
4419	trochtova	591	viewports[i].dglyph = draw_glyph_aligned;
		592	} else {
		593	viewports[i].dglyph = draw_glyph_fallback;
		594	}
4420	trochtova	595
4419	trochtova	596	viewports[i].cur_col = 0;
		597	viewports[i].cur_row = 0;
		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
		606	screen.rgb_conv(viewports[i].bgpixel, viewports[i].attr.bg_color);
		607
		608	return i;
		609	}
		610
		611
		612	/** Initialize framebuffer as a chardev output device
		613	*
		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
		619	*
		620	*/
		621	static bool screen_init(void *addr, unsigned int xres, unsigned int yres,
		622	unsigned int scan, unsigned int visual)
		623	{
4420	trochtova	624
		625
4419	trochtova	626	switch (visual) {
		627	case VISUAL_INDIRECT_8:
		628	screen.rgb_conv = rgb_323;
4420	trochtova	629	screen.mask_conv = mask_323;
4419	trochtova	630	screen.pixelbytes = 1;
		631	break;
		632	case VISUAL_RGB_5_5_5:
		633	screen.rgb_conv = rgb_555;
4420	trochtova	634	screen.mask_conv = mask_555;
4419	trochtova	635	screen.pixelbytes = 2;
		636	break;
		637	case VISUAL_RGB_5_6_5:
		638	screen.rgb_conv = rgb_565;
4420	trochtova	639	screen.mask_conv = mask_565;
4419	trochtova	640	screen.pixelbytes = 2;
		641	break;
		642	case VISUAL_RGB_8_8_8:
		643	screen.rgb_conv = rgb_888;
4420	trochtova	644	screen.mask_conv = mask_888;
4419	trochtova	645	screen.pixelbytes = 3;
		646	break;
		647	case VISUAL_BGR_8_8_8:
		648	screen.rgb_conv = bgr_888;
4420	trochtova	649	screen.mask_conv = mask_888;
4419	trochtova	650	screen.pixelbytes = 3;
		651	break;
		652	case VISUAL_RGB_8_8_8_0:
		653	screen.rgb_conv = rgb_888;
4420	trochtova	654	screen.mask_conv = mask_888;
4419	trochtova	655	screen.pixelbytes = 4;
		656	break;
		657	case VISUAL_RGB_0_8_8_8:
		658	screen.rgb_conv = rgb_0888;
4420	trochtova	659	screen.mask_conv = mask_0888;
4419	trochtova	660	screen.pixelbytes = 4;
		661	break;
		662	case VISUAL_BGR_0_8_8_8:
		663	screen.rgb_conv = bgr_0888;
4420	trochtova	664	screen.mask_conv = mask_0888;
4419	trochtova	665	screen.pixelbytes = 4;
		666	break;
		667	default:
		668	return false;
		669	}
4420	trochtova	670
4419	trochtova	671	screen.fb_addr = (unsigned char *) addr;
		672	screen.xres = xres;
		673	screen.yres = yres;
		674	screen.scanline = scan;
		675
		676	screen.glyphscanline = FONT_WIDTH * screen.pixelbytes;
		677	screen.glyphbytes = screen.glyphscanline * FONT_SCANLINES;
4420	trochtova	678
		679	size_t glyphsize = 2 * FONT_GLYPHS * screen.glyphbytes;
		680	uint8_t glyphs = (uint8_t ) malloc(glyphsize);
4419	trochtova	681	if (!glyphs)
		682	return false;
		683
		684	memset(glyphs, 0, glyphsize);
		685	screen.glyphs = glyphs;
4420	trochtova	686
4419	trochtova	687	render_glyphs();
		688
		689	/* Create first viewport */
		690	vport_create(0, 0, xres, yres);
		691
		692	return true;
		693	}
		694
		695
		696	/** Draw a glyph, takes advantage of alignment.
		697	*
		698	* This version can only be used if the following conditions are met:
		699	*
		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	*
4420	trochtova	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	*
4419	trochtova	717	*/
		718	static void draw_glyph_aligned(unsigned int x, unsigned int y, bool cursor,
		719	uint8_t *glyphs, uint32_t glyph, uint32_t fg_color, uint32_t bg_color)
		720	{
4420	trochtova	721	unsigned int i;
		722	unsigned int yd;
		723	unsigned long fg_buf;
		724	unsigned long bg_buf;
4419	trochtova	725	unsigned long mask;
4420	trochtova	726
4419	trochtova	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++) {
4420	trochtova	732	screen.rgb_conv(&((uint8_t ) &fg_buf)[i screen.pixelbytes],
4419	trochtova	733	fg_color);
4420	trochtova	734	screen.rgb_conv(&((uint8_t ) &bg_buf)[i screen.pixelbytes],
4419	trochtova	735	bg_color);
		736	}
4420	trochtova	737
4419	trochtova	738	/* Pointer to the current position in the mask. */
4420	trochtova	739	unsigned long maskp = (unsigned long ) &glyphs[GLYPH_POS(glyph, 0, cursor)];
		740
4419	trochtova	741	/* Pointer to the current position on the screen. */
4420	trochtova	742	unsigned long dp = (unsigned long ) &screen.fb_addr[FB_POS(x, y)];
		743
4419	trochtova	744	/* Width of the character cell in words. */
4420	trochtova	745	unsigned int ww = FONT_WIDTH * screen.pixelbytes / sizeof(unsigned long);
		746
4419	trochtova	747	/* Offset to add when moving to another screen scanline. */
4420	trochtova	748	unsigned int d_add = screen.scanline - FONT_WIDTH * screen.pixelbytes;
		749
4419	trochtova	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	}
4420	trochtova	759
4419	trochtova	760	/* Move to the beginning of the next scanline of the cell. */
		761	dp = (unsigned long ) ((uint8_t ) dp + d_add);
		762	}
		763	}
		764
		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	*
4420	trochtova	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	*
4419	trochtova	778	*/
		779	void draw_glyph_fallback(unsigned int x, unsigned int y, bool cursor,
		780	uint8_t *glyphs, uint32_t glyph, uint32_t fg_color, uint32_t bg_color)
		781	{
4420	trochtova	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;
4419	trochtova	788	uint8_t b;
4420	trochtova	789
4419	trochtova	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	}
4420	trochtova	798
4419	trochtova	799	/* Pointer to the current position on the screen. */
4420	trochtova	800	uint8_t dp = (uint8_t ) &screen.fb_addr[FB_POS(x, y)];
		801
4419	trochtova	802	/* Offset to add when moving to another screen scanline. */
4420	trochtova	803	unsigned int d_add = screen.scanline - FONT_WIDTH * screen.pixelbytes;
		804
4419	trochtova	805	for (yd = 0; yd < FONT_SCANLINES; yd++) {
		806	/* Byte containing bits of the glyph scanline. */
		807	b = fb_font[glyph][yd];
4420	trochtova	808
4419	trochtova	809	for (i = 0; i < FONT_WIDTH; i++) {
		810	/* Choose color based on the current bit. */
		811	sp = (b & 0x80) ? fg_buf : bg_buf;
4420	trochtova	812
4419	trochtova	813	/* Copy the pixel. */
		814	for (j = 0; j < screen.pixelbytes; j++) {
		815	dp++ = sp++;
		816	}
4420	trochtova	817
4419	trochtova	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
4420	trochtova	827	/** Draw glyph at specified position in viewport.
4419	trochtova	828	*
		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	*/
		835	static void draw_vp_glyph(viewport_t *vport, bool cursor, unsigned int col,
		836	unsigned int row)
		837	{
		838	unsigned int x = vport->x + COL2X(col);
		839	unsigned int y = vport->y + ROW2Y(row);
		840
4420	trochtova	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
4419	trochtova	845	(*vport->dglyph)(x, y, cursor, screen.glyphs, glyph,
		846	fg_color, bg_color);
		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)) {
		855	draw_vp_glyph(vport, false, vport->cur_col, vport->cur_row);
		856	vport->cursor_shown = false;
		857	}
		858	}
		859
		860
		861	/** Show cursor if cursor showing is enabled
		862	*
		863	*/
		864	static void cursor_show(viewport_t *vport)
		865	{
		866	/* Do not check for cursor_shown */
		867	if (vport->cursor_active) {
		868	draw_vp_glyph(vport, true, vport->cur_col, vport->cur_row);
		869	vport->cursor_shown = true;
		870	}
		871	}
		872
		873
		874	/** Invert cursor, if it is enabled
		875	*
		876	*/
		877	static void cursor_blink(viewport_t *vport)
		878	{
		879	if (vport->cursor_shown)
		880	cursor_hide(vport);
		881	else
		882	cursor_show(vport);
		883	}
		884
		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	*
		893	*/
		894	static void draw_char(viewport_t *vport, wchar_t c, unsigned int col, unsigned int row)
		895	{
		896	bb_cell_t *bbp;
4420	trochtova	897
4419	trochtova	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);
4420	trochtova	902
4419	trochtova	903	bbp = &vport->backbuf[BB_POS(vport, col, row)];
		904	bbp->glyph = fb_font_glyph(c);
		905	bbp->fg_color = vport->attr.fg_color;
		906	bbp->bg_color = vport->attr.bg_color;
4420	trochtova	907
4419	trochtova	908	draw_vp_glyph(vport, false, col, row);
		909
		910	vport->cur_col = col;
		911	vport->cur_row = row;
		912
		913	vport->cur_col++;
		914	if (vport->cur_col >= vport->cols) {
		915	vport->cur_col = 0;
		916	vport->cur_row++;
		917	if (vport->cur_row >= vport->rows)
		918	vport->cur_row--;
		919	}
		920
		921	cursor_show(vport);
		922	}
		923
		924	/** Draw text data to viewport.
		925	*
		926	* @param vport Viewport id
		927	* @param data Text data.
4420	trochtova	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	*
4419	trochtova	933	*/
		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)
		936	{
4420	trochtova	937	unsigned int i;
		938	unsigned int j;
4419	trochtova	939	bb_cell_t *bbp;
		940	attrs_t *a;
		941	attr_rgb_t rgb;
4420	trochtova	942
4419	trochtova	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;
4420	trochtova	947
4419	trochtova	948	bbp = &vport->backbuf[BB_POS(vport, col, row)];
4420	trochtova	949
4419	trochtova	950	a = &data[j * w + i].attrs;
		951	rgb_from_attr(&rgb, a);
4420	trochtova	952
4419	trochtova	953	bbp->glyph = fb_font_glyph(data[j * w + i].character);
		954	bbp->fg_color = rgb.fg_color;
		955	bbp->bg_color = rgb.bg_color;
4420	trochtova	956
4419	trochtova	957	draw_vp_glyph(vport, false, col, row);
		958	}
		959	}
		960	cursor_show(vport);
		961	}
		962
		963
		964	static void putpixel_pixmap(void *data, unsigned int x, unsigned int y, uint32_t color)
		965	{
		966	int pm = ((int ) data);
		967	pixmap_t *pmap = &pixmaps[pm];
		968	unsigned int pos = (y * pmap->width + x) * screen.pixelbytes;
		969
		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++)
		992	if (!pixmaps[i].data)
		993	return i;
		994
		995	return -1;
		996	}
		997
		998
		999	/** Create a new pixmap and return appropriate ID
		1000	*
		1001	*/
		1002	static int shm2pixmap(unsigned char *shm, size_t size)
		1003	{
		1004	int pm;
		1005	pixmap_t *pmap;
		1006
		1007	pm = find_free_pixmap();
		1008	if (pm == -1)
		1009	return ELIMIT;
		1010
		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;
		1019
		1020	ppm_draw(shm, size, 0, 0, pmap->width, pmap->height, putpixel_pixmap, (void *) &pm);
		1021
		1022	return pm;
		1023	}
		1024
		1025
		1026	/** Handle shared memory communication calls
		1027	*
		1028	* Protocol for drawing pixmaps:
		1029	* - FB_PREPARE_SHM(client shm identification)
		1030	* - IPC_M_AS_AREA_SEND
		1031	* - FB_DRAW_PPM(startx, starty)
		1032	* - FB_DROP_SHM
		1033	*
		1034	* Protocol for text drawing
		1035	* - IPC_M_AS_AREA_SEND
		1036	* - FB_DRAW_TEXT_DATA
		1037	*
		1038	* @param callid Callid of the current call
		1039	* @param call Current call data
		1040	* @param vp Active viewport
		1041	*
		1042	* @return false if the call was not handled byt this function, true otherwise
		1043	*
4537	trochtova	1044	* Note: this function is not thread-safe, you would have
		1045	* to redefine static variables with fibril_local.
4419	trochtova	1046	*
		1047	*/
		1048	static bool shm_handle(ipc_callid_t callid, ipc_call_t *call, int vp)
		1049	{
		1050	static keyfield_t *interbuffer = NULL;
		1051	static size_t intersize = 0;
		1052
		1053	static unsigned char *shm = NULL;
		1054	static ipcarg_t shm_id = 0;
		1055	static size_t shm_size;
		1056
		1057	bool handled = true;
		1058	int retval = EOK;
		1059	viewport_t *vport = &viewports[vp];
		1060	unsigned int x;
		1061	unsigned int y;
		1062	unsigned int w;
		1063	unsigned int h;
		1064
		1065	switch (IPC_GET_METHOD(*call)) {
		1066	case IPC_M_SHARE_OUT:
		1067	/* We accept one area for data interchange */
		1068	if (IPC_GET_ARG1(*call) == shm_id) {
		1069	void dest = as_get_mappable_page(IPC_GET_ARG2(call));
		1070	shm_size = IPC_GET_ARG2(*call);
4668	trochtova	1071	if (ipc_answer_1(callid, EOK, (sysarg_t) dest)) {
4419	trochtova	1072	shm_id = 0;
4668	trochtova	1073	return false;
		1074	}
		1075	shm = dest;
4419	trochtova	1076
		1077	if (shm[0] != 'P')
		1078	return false;
		1079
		1080	return true;
		1081	} else {
		1082	intersize = IPC_GET_ARG2(*call);
		1083	receive_comm_area(callid, call, (void *) &interbuffer);
		1084	}
		1085	return true;
		1086	case FB_PREPARE_SHM:
		1087	if (shm_id)
		1088	retval = EBUSY;
		1089	else
		1090	shm_id = IPC_GET_ARG1(*call);
		1091	break;
		1092
		1093	case FB_DROP_SHM:
		1094	if (shm) {
		1095	as_area_destroy(shm);
		1096	shm = NULL;
		1097	}
		1098	shm_id = 0;
		1099	break;
		1100
		1101	case FB_SHM2PIXMAP:
		1102	if (!shm) {
		1103	retval = EINVAL;
		1104	break;
		1105	}
		1106	retval = shm2pixmap(shm, shm_size);
		1107	break;
		1108	case FB_DRAW_PPM:
		1109	if (!shm) {
		1110	retval = EINVAL;
		1111	break;
		1112	}
		1113	x = IPC_GET_ARG1(*call);
		1114	y = IPC_GET_ARG2(*call);
		1115
		1116	if ((x > vport->width) \|\| (y > vport->height)) {
		1117	retval = EINVAL;
		1118	break;
		1119	}
		1120
		1121	ppm_draw(shm, shm_size, IPC_GET_ARG1(*call),
		1122	IPC_GET_ARG2(call), vport->width - x, vport->height - y, putpixel, (void ) vport);
		1123	break;
		1124	case FB_DRAW_TEXT_DATA:
		1125	x = IPC_GET_ARG1(*call);
		1126	y = IPC_GET_ARG2(*call);
		1127	w = IPC_GET_ARG3(*call);
		1128	h = IPC_GET_ARG4(*call);
		1129	if (!interbuffer) {
		1130	retval = EINVAL;
		1131	break;
		1132	}
		1133	if (x + w > vport->cols \|\| y + h > vport->rows) {
		1134	retval = EINVAL;
		1135	break;
		1136	}
		1137	if (intersize < w * h * sizeof(*interbuffer)) {
		1138	retval = EINVAL;
		1139	break;
		1140	}
		1141	draw_text_data(vport, interbuffer, x, y, w, h);
		1142	break;
		1143	default:
		1144	handled = false;
		1145	}
		1146
		1147	if (handled)
		1148	ipc_answer_0(callid, retval);
		1149	return handled;
		1150	}
		1151
		1152
		1153	static void copy_vp_to_pixmap(viewport_t vport, pixmap_t pmap)
		1154	{
		1155	unsigned int width = vport->width;
		1156	unsigned int height = vport->height;
		1157
		1158	if (width + vport->x > screen.xres)
		1159	width = screen.xres - vport->x;
		1160	if (height + vport->y > screen.yres)
		1161	height = screen.yres - vport->y;
		1162
		1163	unsigned int realwidth = pmap->width <= width ? pmap->width : width;
		1164	unsigned int realheight = pmap->height <= height ? pmap->height : height;
		1165
		1166	unsigned int srcrowsize = vport->width * screen.pixelbytes;
		1167	unsigned int realrowsize = realwidth * screen.pixelbytes;
		1168
		1169	unsigned int y;
		1170	for (y = 0; y < realheight; y++) {
		1171	unsigned int tmp = (vport->y + y) * screen.scanline + vport->x * screen.pixelbytes;
		1172	memcpy(pmap->data + srcrowsize * y, screen.fb_addr + tmp, realrowsize);
		1173	}
		1174	}
		1175
		1176
		1177	/** Save viewport to pixmap
		1178	*
		1179	*/
		1180	static int save_vp_to_pixmap(viewport_t *vport)
		1181	{
		1182	int pm;
		1183	pixmap_t *pmap;
		1184
		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;
		1193
		1194	pmap->width = vport->width;
		1195	pmap->height = vport->height;
		1196
		1197	copy_vp_to_pixmap(vport, pmap);
		1198
		1199	return pm;
		1200	}
		1201
		1202
		1203	/** Draw pixmap on screen
		1204	*
		1205	* @param vp Viewport to draw on
		1206	* @param pm Pixmap identifier
		1207	*
		1208	*/
		1209	static int draw_pixmap(int vp, int pm)
		1210	{
		1211	pixmap_t *pmap = &pixmaps[pm];
		1212	viewport_t *vport = &viewports[vp];
		1213
		1214	unsigned int width = vport->width;
		1215	unsigned int height = vport->height;
		1216
		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;
		1221
		1222	if (!pmap->data)
		1223	return EINVAL;
		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;
		1232	for (y = 0; y < realheight; y++) {
		1233	unsigned int tmp = (vport->y + y) * screen.scanline + vport->x * screen.pixelbytes;
		1234	memcpy(screen.fb_addr + tmp, pmap->data + y * srcrowsize, realrowsize);
		1235	}
		1236
		1237	return EOK;
		1238	}
		1239
		1240
		1241	/** Tick animation one step forward
		1242	*
		1243	*/
		1244	static void anims_tick(void)
		1245	{
		1246	unsigned int i;
		1247	static int counts = 0;
		1248
		1249	/* Limit redrawing */
		1250	counts = (counts + 1) % 8;
		1251	if (counts)
		1252	return;
4420	trochtova	1253
4419	trochtova	1254	for (i = 0; i < MAX_ANIMATIONS; i++) {
		1255	if ((!animations[i].animlen) \|\| (!animations[i].initialized) \|\|
		1256	(!animations[i].enabled))
		1257	continue;
		1258
		1259	draw_pixmap(animations[i].vp, animations[i].pixmaps[animations[i].pos]);
		1260	animations[i].pos = (animations[i].pos + 1) % animations[i].animlen;
		1261	}
		1262	}
		1263
		1264
		1265	static unsigned int pointer_x;
		1266	static unsigned int pointer_y;
		1267	static bool pointer_shown, pointer_enabled;
		1268	static int pointer_vport = -1;
		1269	static int pointer_pixmap = -1;
		1270
		1271
		1272	static void mouse_show(void)
		1273	{
		1274	int i, j;
		1275	int visibility;
		1276	int color;
		1277	int bytepos;
		1278
		1279	if ((pointer_shown) \|\| (!pointer_enabled))
		1280	return;
		1281
		1282	/* Save image under the pointer. */
		1283	if (pointer_vport == -1) {
		1284	pointer_vport = vport_create(pointer_x, pointer_y, pointer_width, pointer_height);
		1285	if (pointer_vport < 0)
		1286	return;
		1287	} else {
		1288	viewports[pointer_vport].x = pointer_x;
		1289	viewports[pointer_vport].y = pointer_y;
		1290	}
		1291
		1292	if (pointer_pixmap == -1)
		1293	pointer_pixmap = save_vp_to_pixmap(&viewports[pointer_vport]);
		1294	else
		1295	copy_vp_to_pixmap(&viewports[pointer_vport], &pixmaps[pointer_pixmap]);
		1296
		1297	/* Draw mouse pointer. */
		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;
		1301	visibility = pointer_mask_bits[bytepos] &
		1302	(1 << (j % 8));
		1303	if (visibility) {
		1304	color = pointer_bits[bytepos] &
		1305	(1 << (j % 8)) ? 0 : 0xffffff;
		1306	if (pointer_x + j < screen.xres && pointer_y +
		1307	i < screen.yres)
		1308	putpixel(&viewports[0], pointer_x + j,
		1309	pointer_y + i, color);
		1310	}
		1311	}
		1312	pointer_shown = 1;
		1313	}
		1314
		1315
		1316	static void mouse_hide(void)
		1317	{
		1318	/* Restore image under the pointer. */
		1319	if (pointer_shown) {
		1320	draw_pixmap(pointer_vport, pointer_pixmap);
		1321	pointer_shown = 0;
		1322	}
		1323	}
		1324
		1325
		1326	static void mouse_move(unsigned int x, unsigned int y)
		1327	{
		1328	mouse_hide();
		1329	pointer_x = x;
		1330	pointer_y = y;
		1331	mouse_show();
		1332	}
		1333
		1334
		1335	static int anim_handle(ipc_callid_t callid, ipc_call_t *call, int vp)
		1336	{
		1337	bool handled = true;
		1338	int retval = EOK;
		1339	int i, nvp;
		1340	int newval;
		1341
		1342	switch (IPC_GET_METHOD(*call)) {
		1343	case FB_ANIM_CREATE:
		1344	nvp = IPC_GET_ARG1(*call);
		1345	if (nvp == -1)
		1346	nvp = vp;
		1347	if (nvp >= MAX_VIEWPORTS \|\| nvp < 0 \|\|
		1348	!viewports[nvp].initialized) {
		1349	retval = EINVAL;
		1350	break;
		1351	}
		1352	for (i = 0; i < MAX_ANIMATIONS; i++) {
		1353	if (!animations[i].initialized)
		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);
		1369	if (i >= MAX_ANIMATIONS \|\| i < 0) {
		1370	retval = EINVAL;
		1371	break;
		1372	}
		1373	animations[i].initialized = 0;
		1374	break;
		1375	case FB_ANIM_ADDPIXMAP:
		1376	i = IPC_GET_ARG1(*call);
		1377	if (i >= MAX_ANIMATIONS \|\| i < 0 \|\|
		1378	!animations[i].initialized) {
		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);
		1387	if (newval < 0 \|\| newval > MAX_PIXMAPS \|\|
		1388	!pixmaps[newval].data) {
		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;
		1403	if (nvp >= MAX_VIEWPORTS \|\| nvp < 0 \|\|
		1404	!viewports[nvp].initialized) {
		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)
		1427	ipc_answer_0(callid, retval);
		1428	return handled;
		1429	}
		1430
		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)
		1436	{
		1437	bool handled = true;
		1438	int retval = EOK;
		1439	int i, nvp;
		1440
		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;
		1446	if (nvp < 0 \|\| nvp >= MAX_VIEWPORTS \|\|
		1447	!viewports[nvp].initialized) {
		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;
		1458	if (nvp < 0 \|\| nvp >= MAX_VIEWPORTS \|\|
		1459	!viewports[nvp].initialized)
		1460	retval = EINVAL;
		1461	else
		1462	retval = save_vp_to_pixmap(&viewports[nvp]);
		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	}
		1478
		1479	if (handled)
		1480	ipc_answer_0(callid, retval);
		1481	return handled;
		1482
		1483	}
		1484
		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
		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
		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
		1547	/** Function for handling connections to FB
		1548	*
		1549	*/
		1550	static void fb_client_connection(ipc_callid_t iid, ipc_call_t *icall)
		1551	{
		1552	unsigned int vp = 0;
		1553	viewport_t *vport = &viewports[vp];
		1554
		1555	if (client_connected) {
		1556	ipc_answer_0(iid, ELIMIT);
		1557	return;
		1558	}
		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;
		1570	wchar_t ch;
4537	trochtova	1571	unsigned int col, row;
4419	trochtova	1572
		1573	if ((vport->cursor_active) \|\| (anims_enabled))
		1574	callid = async_get_call_timeout(&call, 250000);
		1575	else
		1576	callid = async_get_call(&call);
		1577
		1578	mouse_hide();
		1579	if (!callid) {
		1580	cursor_blink(vport);
		1581	anims_tick();
		1582	mouse_show();
		1583	continue;
		1584	}
		1585
		1586	if (shm_handle(callid, &call, vp))
		1587	continue;
		1588
		1589	if (pixmap_handle(callid, &call, vp))
		1590	continue;
		1591
		1592	if (anim_handle(callid, &call, vp))
		1593	continue;
		1594
		1595	switch (IPC_GET_METHOD(call)) {
		1596	case IPC_M_PHONE_HUNGUP:
		1597	client_connected = false;
		1598
		1599	/* Cleanup other viewports */
		1600	for (i = 1; i < MAX_VIEWPORTS; i++)
		1601	vport->initialized = false;
		1602
		1603	/* Exit thread */
		1604	return;
		1605
		1606	case FB_PUTCHAR:
		1607	ch = IPC_GET_ARG1(call);
4537	trochtova	1608	col = IPC_GET_ARG2(call);
		1609	row = IPC_GET_ARG3(call);
4419	trochtova	1610
		1611	if ((col >= vport->cols) \|\| (row >= vport->rows)) {
		1612	retval = EINVAL;
		1613	break;
		1614	}
		1615	ipc_answer_0(callid, EOK);
		1616
		1617	draw_char(vport, ch, col, row);
		1618
		1619	/* Message already answered */
		1620	continue;
		1621	case FB_CLEAR:
		1622	vport_clear(vport);
		1623	cursor_show(vport);
		1624	retval = EOK;
		1625	break;
		1626	case FB_CURSOR_GOTO:
4537	trochtova	1627	col = IPC_GET_ARG1(call);
		1628	row = IPC_GET_ARG2(call);
4419	trochtova	1629
		1630	if ((col >= vport->cols) \|\| (row >= vport->rows)) {
		1631	retval = EINVAL;
		1632	break;
		1633	}
		1634	retval = EOK;
		1635
		1636	cursor_hide(vport);
		1637	vport->cur_col = col;
		1638	vport->cur_row = row;
		1639	cursor_show(vport);
		1640	break;
		1641	case FB_CURSOR_VISIBILITY:
		1642	cursor_hide(vport);
		1643	vport->cursor_active = IPC_GET_ARG1(call);
		1644	cursor_show(vport);
		1645	retval = EOK;
		1646	break;
		1647	case FB_GET_CSIZE:
4537	trochtova	1648	ipc_answer_2(callid, EOK, vport->cols, vport->rows);
4419	trochtova	1649	continue;
4668	trochtova	1650	case FB_GET_COLOR_CAP:
		1651	ipc_answer_1(callid, EOK, FB_CCAP_RGB);
		1652	continue;
4419	trochtova	1653	case FB_SCROLL:
		1654	scroll = IPC_GET_ARG1(call);
		1655	if ((scroll > (int) vport->rows) \|\| (scroll < (-(int) vport->rows))) {
		1656	retval = EINVAL;
		1657	break;
		1658	}
		1659	cursor_hide(vport);
		1660	vport_scroll(vport, scroll);
		1661	cursor_show(vport);
		1662	retval = EOK;
		1663	break;
		1664	case FB_VIEWPORT_SWITCH:
		1665	i = IPC_GET_ARG1(call);
		1666	if (i >= MAX_VIEWPORTS) {
		1667	retval = EINVAL;
		1668	break;
		1669	}
		1670	if (!viewports[i].initialized) {
		1671	retval = EADDRNOTAVAIL;
		1672	break;
		1673	}
		1674	cursor_hide(vport);
		1675	vp = i;
		1676	vport = &viewports[vp];
		1677	cursor_show(vport);
		1678	retval = EOK;
		1679	break;
		1680	case FB_VIEWPORT_CREATE:
		1681	retval = vport_create(IPC_GET_ARG1(call) >> 16,
		1682	IPC_GET_ARG1(call) & 0xffff,
		1683	IPC_GET_ARG2(call) >> 16,
		1684	IPC_GET_ARG2(call) & 0xffff);
		1685	break;
		1686	case FB_VIEWPORT_DELETE:
		1687	i = IPC_GET_ARG1(call);
		1688	if (i >= MAX_VIEWPORTS) {
		1689	retval = EINVAL;
		1690	break;
		1691	}
		1692	if (!viewports[i].initialized) {
		1693	retval = EADDRNOTAVAIL;
		1694	break;
		1695	}
		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;
		1702	break;
		1703	case FB_SET_STYLE:
		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);
		1713	retval = EOK;
		1714	break;
		1715	case FB_GET_RESOLUTION:
		1716	ipc_answer_2(callid, EOK, screen.xres, screen.yres);
		1717	continue;
		1718	case FB_POINTER_MOVE:
		1719	pointer_enabled = true;
		1720	mouse_move(IPC_GET_ARG1(call), IPC_GET_ARG2(call));
		1721	retval = EOK;
		1722	break;
4420	trochtova	1723	case FB_SCREEN_YIELD:
		1724	case FB_SCREEN_RECLAIM:
		1725	retval = EOK;
		1726	break;
4419	trochtova	1727	default:
		1728	retval = ENOENT;
		1729	}
		1730	ipc_answer_0(callid, retval);
		1731	}
		1732	}
		1733
		1734	/** Initialization of framebuffer
		1735	*
		1736	*/
		1737	int fb_init(void)
		1738	{
		1739	async_set_client_connection(fb_client_connection);
		1740
		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
		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;
		1754
		1755	if (screen_init(fb_addr, fb_width, fb_height, fb_scanline, fb_visual))
		1756	return 0;
		1757
		1758	return -1;
		1759	}
		1760
		1761	/**
		1762	* @}
		1763	*/

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(root)//branches/dd/uspace/srv/fb/fb.c – Rev 4668