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>
4678	trochtova	60	#include <byteorder.h>
4419	trochtova	61
		62	#include "font-8x16.h"
		63	#include "fb.h"
		64	#include "main.h"
		65	#include "../console/screenbuffer.h"
		66	#include "ppm.h"
		67
		68	#include "pointer.xbm"
		69	#include "pointer_mask.xbm"
		70
		71	#define DEFAULT_BGCOLOR 0xf0f0f0
		72	#define DEFAULT_FGCOLOR 0x000000
		73
4420	trochtova	74	#define GLYPH_UNAVAIL '?'
4419	trochtova	75
		76	#define MAX_ANIM_LEN 8
		77	#define MAX_ANIMATIONS 4
		78	#define MAX_PIXMAPS 256 /*< Maximum number of saved pixmaps /
		79	#define MAX_VIEWPORTS 128 /*< Viewport is a rectangular area on the screen /
		80
		81	/** Function to render a pixel from a RGB value. */
		82	typedef void (rgb_conv_t)(void , uint32_t);
		83
4420	trochtova	84	/** Function to render a bit mask. */
		85	typedef void (mask_conv_t)(void , bool);
		86
4419	trochtova	87	/** Function to draw a glyph. */
		88	typedef void (*dg_t)(unsigned int x, unsigned int y, bool cursor,
		89	uint8_t *glyphs, uint32_t glyph, uint32_t fg_color, uint32_t bg_color);
		90
		91	struct {
		92	uint8_t *fb_addr;
		93
		94	unsigned int xres;
		95	unsigned int yres;
		96
		97	unsigned int scanline;
		98	unsigned int glyphscanline;
		99
		100	unsigned int pixelbytes;
		101	unsigned int glyphbytes;
4420	trochtova	102
4419	trochtova	103	/** Pre-rendered mask for rendering glyphs. Specific for the visual. */
		104	uint8_t *glyphs;
		105
		106	rgb_conv_t rgb_conv;
4420	trochtova	107	mask_conv_t mask_conv;
4419	trochtova	108	} screen;
		109
		110	/** Backbuffer character cell. */
		111	typedef struct {
		112	uint32_t glyph;
		113	uint32_t fg_color;
		114	uint32_t bg_color;
		115	} bb_cell_t;
		116
		117	typedef struct {
		118	bool initialized;
		119	unsigned int x;
		120	unsigned int y;
		121	unsigned int width;
		122	unsigned int height;
		123
		124	/* Text support in window */
		125	unsigned int cols;
		126	unsigned int rows;
		127
		128	/*
		129	* Style and glyphs for text printing
		130	*/
4420	trochtova	131
4419	trochtova	132	/** Current attributes. */
		133	attr_rgb_t attr;
4420	trochtova	134
4419	trochtova	135	uint8_t *bgpixel;
4420	trochtova	136
4419	trochtova	137	/**
		138	* Glyph drawing function for this viewport. Different viewports
		139	* might use different drawing functions depending on whether their
		140	* scanlines are aligned on a word boundary.
		141	*/
		142	dg_t dglyph;
		143
		144	/* Auto-cursor position */
		145	bool cursor_active;
		146	unsigned int cur_col;
		147	unsigned int cur_row;
		148	bool cursor_shown;
		149
		150	/* Back buffer */
		151	bb_cell_t *backbuf;
		152	unsigned int bbsize;
		153	} viewport_t;
		154
		155	typedef struct {
		156	bool initialized;
		157	bool enabled;
		158	unsigned int vp;
		159
		160	unsigned int pos;
		161	unsigned int animlen;
		162	unsigned int pixmaps[MAX_ANIM_LEN];
		163	} animation_t;
		164
		165	static animation_t animations[MAX_ANIMATIONS];
		166	static bool anims_enabled;
		167
		168	typedef struct {
		169	unsigned int width;
		170	unsigned int height;
		171	uint8_t *data;
		172	} pixmap_t;
		173
		174	static pixmap_t pixmaps[MAX_PIXMAPS];
		175	static viewport_t viewports[128];
		176
		177	static bool client_connected = false; /*< Allow only 1 connection /
		178
		179	static uint32_t color_table[16] = {
4420	trochtova	180	[COLOR_BLACK] = 0x000000,
		181	[COLOR_BLUE] = 0x0000f0,
		182	[COLOR_GREEN] = 0x00f000,
		183	[COLOR_CYAN] = 0x00f0f0,
		184	[COLOR_RED] = 0xf00000,
		185	[COLOR_MAGENTA] = 0xf000f0,
		186	[COLOR_YELLOW] = 0xf0f000,
		187	[COLOR_WHITE] = 0xf0f0f0,
		188
		189	[8 + COLOR_BLACK] = 0x000000,
		190	[8 + COLOR_BLUE] = 0x0000ff,
		191	[8 + COLOR_GREEN] = 0x00ff00,
		192	[8 + COLOR_CYAN] = 0x00ffff,
		193	[8 + COLOR_RED] = 0xff0000,
		194	[8 + COLOR_MAGENTA] = 0xff00ff,
		195	[8 + COLOR_YELLOW] = 0xffff00,
		196	[8 + COLOR_WHITE] = 0xffffff,
4419	trochtova	197	};
		198
		199	static int rgb_from_attr(attr_rgb_t rgb, const attrs_t a);
		200	static int rgb_from_style(attr_rgb_t *rgb, int style);
		201	static int rgb_from_idx(attr_rgb_t *rgb, ipcarg_t fg_color,
		202	ipcarg_t bg_color, ipcarg_t flags);
		203
		204	static int fb_set_color(viewport_t *vport, ipcarg_t fg_color,
		205	ipcarg_t bg_color, ipcarg_t attr);
		206
		207	static void draw_glyph_aligned(unsigned int x, unsigned int y, bool cursor,
		208	uint8_t *glyphs, uint32_t glyph, uint32_t fg_color, uint32_t bg_color);
		209	static void draw_glyph_fallback(unsigned int x, unsigned int y, bool cursor,
		210	uint8_t *glyphs, uint32_t glyph, uint32_t fg_color, uint32_t bg_color);
		211
		212	static void draw_vp_glyph(viewport_t *vport, bool cursor, unsigned int col,
		213	unsigned int row);
		214
		215
4678	trochtova	216	#define RED(x, bits) (((x) >> (8 + 8 + 8 - (bits))) & ((1 << (bits)) - 1))
		217	#define GREEN(x, bits) (((x) >> (8 + 8 - (bits))) & ((1 << (bits)) - 1))
		218	#define BLUE(x, bits) (((x) >> (8 - (bits))) & ((1 << (bits)) - 1))
4419	trochtova	219
		220	#define COL2X(col) ((col) * FONT_WIDTH)
		221	#define ROW2Y(row) ((row) * FONT_SCANLINES)
		222
		223	#define X2COL(x) ((x) / FONT_WIDTH)
		224	#define Y2ROW(y) ((y) / FONT_SCANLINES)
		225
		226	#define FB_POS(x, y) ((y) * screen.scanline + (x) * screen.pixelbytes)
		227	#define BB_POS(vport, col, row) ((row) * vport->cols + (col))
		228	#define GLYPH_POS(glyph, y, cursor) (((glyph) + (cursor) * FONT_GLYPHS) * screen.glyphbytes + (y) * screen.glyphscanline)
		229
4678	trochtova	230	/*
		231	* RGB conversion and mask functions.
4419	trochtova	232	*
4678	trochtova	233	* These functions write an RGB value to some memory in some predefined format.
		234	* The naming convention corresponds to the format created by these functions.
		235	* The functions use the so called network order (i.e. big endian) with respect
		236	* to their names.
4419	trochtova	237	*/
4678	trochtova	238
4419	trochtova	239	static void rgb_0888(void *dst, uint32_t rgb)
		240	{
4678	trochtova	241	((uint32_t ) dst) = host2uint32_t_be((0 << 24) \|
		242	(RED(rgb, 8) << 16) \| (GREEN(rgb, 8) << 8) \| (BLUE(rgb, 8)));
4419	trochtova	243	}
		244
4678	trochtova	245	static void bgr_0888(void *dst, uint32_t rgb)
		246	{
		247	((uint32_t ) dst) = host2uint32_t_be((0 << 24) \|
		248	(BLUE(rgb, 8) << 16) \| (GREEN(rgb, 8) << 8) \| (RED(rgb, 8)));
		249	}
		250
4420	trochtova	251	static void mask_0888(void *dst, bool mask)
		252	{
4678	trochtova	253	bgr_0888(dst, mask ? 0xffffff : 0);
4420	trochtova	254	}
4419	trochtova	255
4678	trochtova	256	static void rgb_8880(void *dst, uint32_t rgb)
		257	{
		258	((uint32_t ) dst) = host2uint32_t_be((RED(rgb, 8) << 24) \|
		259	(GREEN(rgb, 8) << 16) \| (BLUE(rgb, 8) << 8) \| 0);
		260	}
4420	trochtova	261
4678	trochtova	262	static void bgr_8880(void *dst, uint32_t rgb)
4419	trochtova	263	{
4678	trochtova	264	((uint32_t ) dst) = host2uint32_t_be((BLUE(rgb, 8) << 24) \|
		265	(GREEN(rgb, 8) << 16) \| (RED(rgb, 8) << 8) \| 0);
4419	trochtova	266	}
		267
4678	trochtova	268	static void mask_8880(void *dst, bool mask)
		269	{
		270	bgr_8880(dst, mask ? 0xffffff : 0);
		271	}
4419	trochtova	272
		273	static void rgb_888(void *dst, uint32_t rgb)
		274	{
4678	trochtova	275	((uint8_t *) dst)[0] = RED(rgb, 8);
		276	((uint8_t *) dst)[1] = GREEN(rgb, 8);
		277	((uint8_t *) dst)[2] = BLUE(rgb, 8);
		278	}
		279
		280	static void bgr_888(void *dst, uint32_t rgb)
		281	{
4419	trochtova	282	((uint8_t *) dst)[0] = BLUE(rgb, 8);
		283	((uint8_t *) dst)[1] = GREEN(rgb, 8);
		284	((uint8_t *) dst)[2] = RED(rgb, 8);
		285	}
		286
4420	trochtova	287	static void mask_888(void *dst, bool mask)
		288	{
4678	trochtova	289	bgr_888(dst, mask ? 0xffffff : 0);
4420	trochtova	290	}
4419	trochtova	291
4688	trochtova	292	static void rgb_555_be(void *dst, uint32_t rgb)
4419	trochtova	293	{
4688	trochtova	294	((uint16_t ) dst) = host2uint16_t_be(RED(rgb, 5) << 10 \|
		295	GREEN(rgb, 5) << 5 \| BLUE(rgb, 5));
4419	trochtova	296	}
		297
4688	trochtova	298	static void rgb_555_le(void *dst, uint32_t rgb)
4420	trochtova	299	{
4688	trochtova	300	((uint16_t ) dst) = host2uint16_t_le(RED(rgb, 5) << 10 \|
		301	GREEN(rgb, 5) << 5 \| BLUE(rgb, 5));
4420	trochtova	302	}
4419	trochtova	303
4688	trochtova	304	static void rgb_565_be(void *dst, uint32_t rgb)
4419	trochtova	305	{
4688	trochtova	306	((uint16_t ) dst) = host2uint16_t_be(RED(rgb, 5) << 11 \|
		307	GREEN(rgb, 6) << 5 \| BLUE(rgb, 5));
4419	trochtova	308	}
		309
4688	trochtova	310	static void rgb_565_le(void *dst, uint32_t rgb)
		311	{
		312	((uint16_t ) dst) = host2uint16_t_le(RED(rgb, 5) << 11 \|
		313	GREEN(rgb, 6) << 5 \| BLUE(rgb, 5));
		314	}
		315
		316	static void mask_555(void *dst, bool mask)
		317	{
		318	rgb_555_be(dst, mask ? 0xffffff : 0);
		319	}
		320
4420	trochtova	321	static void mask_565(void *dst, bool mask)
		322	{
4688	trochtova	323	rgb_565_be(dst, mask ? 0xffffff : 0);
4420	trochtova	324	}
4419	trochtova	325
4678	trochtova	326	static void bgr_323(void *dst, uint32_t rgb)
4419	trochtova	327	{
		328	((uint8_t ) dst)
		329	= ~((RED(rgb, 3) << 5) \| (GREEN(rgb, 2) << 3) \| BLUE(rgb, 3));
		330	}
		331
4420	trochtova	332	static void mask_323(void *dst, bool mask)
		333	{
4678	trochtova	334	bgr_323(dst, mask ? 0x0 : ~0x0);
4420	trochtova	335	}
		336
4419	trochtova	337	/** Draw a filled rectangle.
		338	*
		339	* @note Need real implementation that does not access VRAM twice.
4420	trochtova	340	*
4419	trochtova	341	*/
		342	static void draw_filled_rect(unsigned int x0, unsigned int y0, unsigned int x1,
		343	unsigned int y1, uint32_t color)
		344	{
4420	trochtova	345	unsigned int x;
		346	unsigned int y;
4419	trochtova	347	unsigned int copy_bytes;
4420	trochtova	348
		349	uint8_t *sp;
		350	uint8_t *dp;
4419	trochtova	351	uint8_t cbuf[4];
4420	trochtova	352
		353	if ((y0 >= y1) \|\| (x0 >= x1))
		354	return;
		355
4419	trochtova	356	screen.rgb_conv(cbuf, color);
4420	trochtova	357
4419	trochtova	358	sp = &screen.fb_addr[FB_POS(x0, y0)];
		359	dp = sp;
4420	trochtova	360
4419	trochtova	361	/* Draw the first line. */
		362	for (x = x0; x < x1; x++) {
		363	memcpy(dp, cbuf, screen.pixelbytes);
		364	dp += screen.pixelbytes;
		365	}
4420	trochtova	366
4419	trochtova	367	dp = sp + screen.scanline;
		368	copy_bytes = (x1 - x0) * screen.pixelbytes;
4420	trochtova	369
4419	trochtova	370	/* Draw the remaining lines by copying. */
		371	for (y = y0 + 1; y < y1; y++) {
		372	memcpy(dp, sp, copy_bytes);
		373	dp += screen.scanline;
		374	}
		375	}
		376
		377	/** Redraw viewport.
		378	*
		379	* @param vport Viewport to redraw
		380	*
		381	*/
		382	static void vport_redraw(viewport_t *vport)
		383	{
4537	trochtova	384	unsigned int col;
4420	trochtova	385	unsigned int row;
		386
4419	trochtova	387	for (row = 0; row < vport->rows; row++) {
		388	for (col = 0; col < vport->cols; col++) {
		389	draw_vp_glyph(vport, false, col, row);
		390	}
		391	}
4420	trochtova	392
4419	trochtova	393	if (COL2X(vport->cols) < vport->width) {
		394	draw_filled_rect(
		395	vport->x + COL2X(vport->cols), vport->y,
		396	vport->x + vport->width, vport->y + vport->height,
		397	vport->attr.bg_color);
		398	}
4420	trochtova	399
4419	trochtova	400	if (ROW2Y(vport->rows) < vport->height) {
		401	draw_filled_rect(
		402	vport->x, vport->y + ROW2Y(vport->rows),
		403	vport->x + vport->width, vport->y + vport->height,
		404	vport->attr.bg_color);
		405	}
		406	}
		407
		408	static void backbuf_clear(bb_cell_t *backbuf, size_t len, uint32_t fg_color,
		409	uint32_t bg_color)
		410	{
4420	trochtova	411	size_t i;
		412
4419	trochtova	413	for (i = 0; i < len; i++) {
		414	backbuf[i].glyph = 0;
		415	backbuf[i].fg_color = fg_color;
		416	backbuf[i].bg_color = bg_color;
		417	}
		418	}
		419
		420	/** Clear viewport.
		421	*
		422	* @param vport Viewport to clear
		423	*
		424	*/
		425	static void vport_clear(viewport_t *vport)
		426	{
		427	backbuf_clear(vport->backbuf, vport->cols * vport->rows,
		428	vport->attr.fg_color, vport->attr.bg_color);
		429	vport_redraw(vport);
		430	}
		431
		432	/** Scroll viewport by the specified number of lines.
		433	*
		434	* @param vport Viewport to scroll
		435	* @param lines Number of lines to scroll
		436	*
		437	*/
		438	static void vport_scroll(viewport_t *vport, int lines)
		439	{
4537	trochtova	440	unsigned int col;
4420	trochtova	441	unsigned int row;
		442	unsigned int x;
		443	unsigned int y;
4419	trochtova	444	uint32_t glyph;
		445	uint32_t fg_color;
		446	uint32_t bg_color;
4420	trochtova	447	bb_cell_t *bbp;
		448	bb_cell_t *xbp;
		449
4419	trochtova	450	/*
		451	* Redraw.
		452	*/
4420	trochtova	453
4419	trochtova	454	y = vport->y;
		455	for (row = 0; row < vport->rows; row++) {
		456	x = vport->x;
		457	for (col = 0; col < vport->cols; col++) {
4668	trochtova	458	if (((int) row + lines >= 0) &&
		459	((int) row + lines < (int) vport->rows)) {
4419	trochtova	460	xbp = &vport->backbuf[BB_POS(vport, col, row + lines)];
		461	bbp = &vport->backbuf[BB_POS(vport, col, row)];
4420	trochtova	462
4419	trochtova	463	glyph = xbp->glyph;
		464	fg_color = xbp->fg_color;
		465	bg_color = xbp->bg_color;
4420	trochtova	466
		467	if ((bbp->glyph == glyph)
		468	&& (bbp->fg_color == xbp->fg_color)
		469	&& (bbp->bg_color == xbp->bg_color)) {
4419	trochtova	470	x += FONT_WIDTH;
		471	continue;
		472	}
		473	} else {
		474	glyph = 0;
		475	fg_color = vport->attr.fg_color;
		476	bg_color = vport->attr.bg_color;
		477	}
4420	trochtova	478
4419	trochtova	479	(*vport->dglyph)(x, y, false, screen.glyphs, glyph,
		480	fg_color, bg_color);
		481	x += FONT_WIDTH;
		482	}
		483	y += FONT_SCANLINES;
		484	}
4420	trochtova	485
4419	trochtova	486	/*
		487	* Scroll backbuffer.
		488	*/
4420	trochtova	489
4419	trochtova	490	if (lines > 0) {
		491	memmove(vport->backbuf, vport->backbuf + vport->cols * lines,
		492	vport->cols * (vport->rows - lines) * sizeof(bb_cell_t));
		493	backbuf_clear(&vport->backbuf[BB_POS(vport, 0, vport->rows - lines)],
		494	vport->cols * lines, vport->attr.fg_color, vport->attr.bg_color);
		495	} else {
		496	memmove(vport->backbuf - vport->cols * lines, vport->backbuf,
		497	vport->cols * (vport->rows + lines) * sizeof(bb_cell_t));
		498	backbuf_clear(vport->backbuf, - vport->cols * lines,
		499	vport->attr.fg_color, vport->attr.bg_color);
		500	}
		501	}
		502
		503	/** Render glyphs
		504	*
		505	* Convert glyphs from device independent font
		506	* description to current visual representation.
4420	trochtova	507	*
4419	trochtova	508	*/
		509	static void render_glyphs(void)
		510	{
		511	unsigned int glyph;
4420	trochtova	512
4419	trochtova	513	for (glyph = 0; glyph < FONT_GLYPHS; glyph++) {
		514	unsigned int y;
4420	trochtova	515
4419	trochtova	516	for (y = 0; y < FONT_SCANLINES; y++) {
		517	unsigned int x;
4420	trochtova	518
4419	trochtova	519	for (x = 0; x < FONT_WIDTH; x++) {
4420	trochtova	520	screen.mask_conv(&screen.glyphs[GLYPH_POS(glyph, y, false) + x * screen.pixelbytes],
		521	(fb_font[glyph][y] & (1 << (7 - x))) ? true : false);
		522
		523	screen.mask_conv(&screen.glyphs[GLYPH_POS(glyph, y, true) + x * screen.pixelbytes],
		524	(fb_font[glyph][y] & (1 << (7 - x))) ? false : true);
4419	trochtova	525	}
		526	}
		527	}
		528	}
		529
		530	/** Create new viewport
		531	*
		532	* @param x Origin of the viewport (x).
		533	* @param y Origin of the viewport (y).
		534	* @param width Width of the viewport.
		535	* @param height Height of the viewport.
		536	*
		537	* @return New viewport number.
		538	*
		539	*/
		540	static int vport_create(unsigned int x, unsigned int y,
		541	unsigned int width, unsigned int height)
		542	{
		543	unsigned int i;
		544
		545	for (i = 0; i < MAX_VIEWPORTS; i++) {
		546	if (!viewports[i].initialized)
		547	break;
		548	}
4420	trochtova	549
4419	trochtova	550	if (i == MAX_VIEWPORTS)
		551	return ELIMIT;
		552
		553	unsigned int cols = width / FONT_WIDTH;
		554	unsigned int rows = height / FONT_SCANLINES;
		555	unsigned int bbsize = cols * rows * sizeof(bb_cell_t);
		556	unsigned int word_size = sizeof(unsigned long);
		557
		558	bb_cell_t backbuf = (bb_cell_t ) malloc(bbsize);
		559	if (!backbuf)
		560	return ENOMEM;
		561
		562	uint8_t bgpixel = (uint8_t ) malloc(screen.pixelbytes);
		563	if (!bgpixel) {
		564	free(backbuf);
		565	return ENOMEM;
		566	}
4420	trochtova	567
4419	trochtova	568	backbuf_clear(backbuf, cols * rows, DEFAULT_FGCOLOR, DEFAULT_BGCOLOR);
		569	memset(bgpixel, 0, screen.pixelbytes);
		570
		571	viewports[i].x = x;
		572	viewports[i].y = y;
		573	viewports[i].width = width;
		574	viewports[i].height = height;
		575
		576	viewports[i].cols = cols;
		577	viewports[i].rows = rows;
		578
		579	viewports[i].attr.bg_color = DEFAULT_BGCOLOR;
		580	viewports[i].attr.fg_color = DEFAULT_FGCOLOR;
		581
		582	viewports[i].bgpixel = bgpixel;
4420	trochtova	583
4419	trochtova	584	/*
4420	trochtova	585	* Conditions necessary to select aligned version:
		586	* - word size is divisible by pixelbytes
		587	* - cell scanline size is divisible by word size
		588	* - cell scanlines are word-aligned
4419	trochtova	589	*
		590	*/
4420	trochtova	591	if (((word_size % screen.pixelbytes) == 0)
		592	&& ((FONT_WIDTH * screen.pixelbytes) % word_size == 0)
		593	&& ((x * screen.pixelbytes) % word_size == 0)
		594	&& (screen.scanline % word_size == 0)) {
4419	trochtova	595	viewports[i].dglyph = draw_glyph_aligned;
		596	} else {
		597	viewports[i].dglyph = draw_glyph_fallback;
		598	}
4420	trochtova	599
4419	trochtova	600	viewports[i].cur_col = 0;
		601	viewports[i].cur_row = 0;
		602	viewports[i].cursor_active = false;
		603	viewports[i].cursor_shown = false;
		604
		605	viewports[i].bbsize = bbsize;
		606	viewports[i].backbuf = backbuf;
		607
		608	viewports[i].initialized = true;
		609
		610	screen.rgb_conv(viewports[i].bgpixel, viewports[i].attr.bg_color);
		611
		612	return i;
		613	}
		614
		615
		616	/** Initialize framebuffer as a chardev output device
		617	*
		618	* @param addr Address of the framebuffer
		619	* @param xres Screen width in pixels
		620	* @param yres Screen height in pixels
		621	* @param visual Bits per pixel (8, 16, 24, 32)
		622	* @param scan Bytes per one scanline
		623	*
		624	*/
		625	static bool screen_init(void *addr, unsigned int xres, unsigned int yres,
		626	unsigned int scan, unsigned int visual)
		627	{
		628	switch (visual) {
		629	case VISUAL_INDIRECT_8:
4678	trochtova	630	screen.rgb_conv = bgr_323;
4420	trochtova	631	screen.mask_conv = mask_323;
4419	trochtova	632	screen.pixelbytes = 1;
		633	break;
4688	trochtova	634	case VISUAL_RGB_5_5_5_LE:
		635	screen.rgb_conv = rgb_555_le;
4420	trochtova	636	screen.mask_conv = mask_555;
4419	trochtova	637	screen.pixelbytes = 2;
		638	break;
4688	trochtova	639	case VISUAL_RGB_5_5_5_BE:
		640	screen.rgb_conv = rgb_555_be;
		641	screen.mask_conv = mask_555;
		642	screen.pixelbytes = 2;
		643	break;
		644	case VISUAL_RGB_5_6_5_LE:
		645	screen.rgb_conv = rgb_565_le;
4420	trochtova	646	screen.mask_conv = mask_565;
4419	trochtova	647	screen.pixelbytes = 2;
		648	break;
4688	trochtova	649	case VISUAL_RGB_5_6_5_BE:
		650	screen.rgb_conv = rgb_565_be;
		651	screen.mask_conv = mask_565;
		652	screen.pixelbytes = 2;
		653	break;
4419	trochtova	654	case VISUAL_RGB_8_8_8:
		655	screen.rgb_conv = rgb_888;
4420	trochtova	656	screen.mask_conv = mask_888;
4419	trochtova	657	screen.pixelbytes = 3;
		658	break;
		659	case VISUAL_BGR_8_8_8:
		660	screen.rgb_conv = bgr_888;
4420	trochtova	661	screen.mask_conv = mask_888;
4419	trochtova	662	screen.pixelbytes = 3;
		663	break;
		664	case VISUAL_RGB_8_8_8_0:
4678	trochtova	665	screen.rgb_conv = rgb_8880;
		666	screen.mask_conv = mask_8880;
4419	trochtova	667	screen.pixelbytes = 4;
		668	break;
		669	case VISUAL_RGB_0_8_8_8:
		670	screen.rgb_conv = rgb_0888;
4420	trochtova	671	screen.mask_conv = mask_0888;
4419	trochtova	672	screen.pixelbytes = 4;
		673	break;
		674	case VISUAL_BGR_0_8_8_8:
		675	screen.rgb_conv = bgr_0888;
4420	trochtova	676	screen.mask_conv = mask_0888;
4419	trochtova	677	screen.pixelbytes = 4;
		678	break;
4678	trochtova	679	case VISUAL_BGR_8_8_8_0:
		680	screen.rgb_conv = bgr_8880;
		681	screen.mask_conv = mask_8880;
		682	screen.pixelbytes = 4;
		683	break;
4419	trochtova	684	default:
		685	return false;
		686	}
4420	trochtova	687
4419	trochtova	688	screen.fb_addr = (unsigned char *) addr;
		689	screen.xres = xres;
		690	screen.yres = yres;
		691	screen.scanline = scan;
		692
		693	screen.glyphscanline = FONT_WIDTH * screen.pixelbytes;
		694	screen.glyphbytes = screen.glyphscanline * FONT_SCANLINES;
4420	trochtova	695
		696	size_t glyphsize = 2 * FONT_GLYPHS * screen.glyphbytes;
		697	uint8_t glyphs = (uint8_t ) malloc(glyphsize);
4419	trochtova	698	if (!glyphs)
		699	return false;
		700
		701	memset(glyphs, 0, glyphsize);
		702	screen.glyphs = glyphs;
4420	trochtova	703
4419	trochtova	704	render_glyphs();
		705
		706	/* Create first viewport */
		707	vport_create(0, 0, xres, yres);
		708
		709	return true;
		710	}
		711
		712
		713	/** Draw a glyph, takes advantage of alignment.
		714	*
		715	* This version can only be used if the following conditions are met:
		716	*
		717	* - word size is divisible by pixelbytes
		718	* - cell scanline size is divisible by word size
		719	* - cell scanlines are word-aligned
		720	*
		721	* It makes use of the pre-rendered mask to process (possibly) several
		722	* pixels at once (word size / pixelbytes pixels at a time are processed)
		723	* making it very fast. Most notably this version is not applicable at 24 bits
		724	* per pixel.
		725	*
4420	trochtova	726	* @param x x coordinate of top-left corner on screen.
		727	* @param y y coordinate of top-left corner on screen.
		728	* @param cursor Draw glyph with cursor
		729	* @param glyphs Pointer to font bitmap.
		730	* @param glyph Code of the glyph to draw.
		731	* @param fg_color Foreground color.
		732	* @param bg_color Backgroudn color.
		733	*
4419	trochtova	734	*/
		735	static void draw_glyph_aligned(unsigned int x, unsigned int y, bool cursor,
		736	uint8_t *glyphs, uint32_t glyph, uint32_t fg_color, uint32_t bg_color)
		737	{
4420	trochtova	738	unsigned int i;
		739	unsigned int yd;
		740	unsigned long fg_buf;
		741	unsigned long bg_buf;
4419	trochtova	742	unsigned long mask;
4420	trochtova	743
4419	trochtova	744	/*
		745	* Prepare a pair of words, one filled with foreground-color
		746	* pattern and the other filled with background-color pattern.
		747	*/
		748	for (i = 0; i < sizeof(unsigned long) / screen.pixelbytes; i++) {
4420	trochtova	749	screen.rgb_conv(&((uint8_t ) &fg_buf)[i screen.pixelbytes],
4419	trochtova	750	fg_color);
4420	trochtova	751	screen.rgb_conv(&((uint8_t ) &bg_buf)[i screen.pixelbytes],
4419	trochtova	752	bg_color);
		753	}
4420	trochtova	754
4419	trochtova	755	/* Pointer to the current position in the mask. */
4420	trochtova	756	unsigned long maskp = (unsigned long ) &glyphs[GLYPH_POS(glyph, 0, cursor)];
		757
4419	trochtova	758	/* Pointer to the current position on the screen. */
4420	trochtova	759	unsigned long dp = (unsigned long ) &screen.fb_addr[FB_POS(x, y)];
		760
4419	trochtova	761	/* Width of the character cell in words. */
4420	trochtova	762	unsigned int ww = FONT_WIDTH * screen.pixelbytes / sizeof(unsigned long);
		763
4419	trochtova	764	/* Offset to add when moving to another screen scanline. */
4420	trochtova	765	unsigned int d_add = screen.scanline - FONT_WIDTH * screen.pixelbytes;
		766
4419	trochtova	767	for (yd = 0; yd < FONT_SCANLINES; yd++) {
		768	/*
		769	* Now process the cell scanline, combining foreground
		770	* and background color patters using the pre-rendered mask.
		771	*/
		772	for (i = 0; i < ww; i++) {
		773	mask = *maskp++;
		774	*dp++ = (fg_buf & mask) \| (bg_buf & ~mask);
		775	}
4420	trochtova	776
4419	trochtova	777	/* Move to the beginning of the next scanline of the cell. */
		778	dp = (unsigned long ) ((uint8_t ) dp + d_add);
		779	}
		780	}
		781
		782	/** Draw a glyph, fallback version.
		783	*
		784	* This version does not make use of the pre-rendered mask, it uses
		785	* the font bitmap directly. It works always, but it is slower.
		786	*
4420	trochtova	787	* @param x x coordinate of top-left corner on screen.
		788	* @param y y coordinate of top-left corner on screen.
		789	* @param cursor Draw glyph with cursor
		790	* @param glyphs Pointer to font bitmap.
		791	* @param glyph Code of the glyph to draw.
		792	* @param fg_color Foreground color.
		793	* @param bg_color Backgroudn color.
		794	*
4419	trochtova	795	*/
		796	void draw_glyph_fallback(unsigned int x, unsigned int y, bool cursor,
		797	uint8_t *glyphs, uint32_t glyph, uint32_t fg_color, uint32_t bg_color)
		798	{
4420	trochtova	799	unsigned int i;
		800	unsigned int j;
		801	unsigned int yd;
		802	uint8_t fg_buf[4];
		803	uint8_t bg_buf[4];
		804	uint8_t *sp;
4419	trochtova	805	uint8_t b;
4420	trochtova	806
4419	trochtova	807	/* Pre-render 1x the foreground and background color pixels. */
		808	if (cursor) {
		809	screen.rgb_conv(fg_buf, bg_color);
		810	screen.rgb_conv(bg_buf, fg_color);
		811	} else {
		812	screen.rgb_conv(fg_buf, fg_color);
		813	screen.rgb_conv(bg_buf, bg_color);
		814	}
4420	trochtova	815
4419	trochtova	816	/* Pointer to the current position on the screen. */
4420	trochtova	817	uint8_t dp = (uint8_t ) &screen.fb_addr[FB_POS(x, y)];
		818
4419	trochtova	819	/* Offset to add when moving to another screen scanline. */
4420	trochtova	820	unsigned int d_add = screen.scanline - FONT_WIDTH * screen.pixelbytes;
		821
4419	trochtova	822	for (yd = 0; yd < FONT_SCANLINES; yd++) {
		823	/* Byte containing bits of the glyph scanline. */
		824	b = fb_font[glyph][yd];
4420	trochtova	825
4419	trochtova	826	for (i = 0; i < FONT_WIDTH; i++) {
		827	/* Choose color based on the current bit. */
		828	sp = (b & 0x80) ? fg_buf : bg_buf;
4420	trochtova	829
4419	trochtova	830	/* Copy the pixel. */
		831	for (j = 0; j < screen.pixelbytes; j++) {
		832	dp++ = sp++;
		833	}
4420	trochtova	834
4419	trochtova	835	/* Move to the next bit. */
		836	b = b << 1;
		837	}
		838
		839	/* Move to the beginning of the next scanline of the cell. */
		840	dp += d_add;
		841	}
		842	}
		843
4420	trochtova	844	/** Draw glyph at specified position in viewport.
4419	trochtova	845	*
		846	* @param vport Viewport identification
		847	* @param cursor Draw glyph with cursor
		848	* @param col Screen position relative to viewport
		849	* @param row Screen position relative to viewport
		850	*
		851	*/
		852	static void draw_vp_glyph(viewport_t *vport, bool cursor, unsigned int col,
		853	unsigned int row)
		854	{
		855	unsigned int x = vport->x + COL2X(col);
		856	unsigned int y = vport->y + ROW2Y(row);
		857
4420	trochtova	858	uint32_t glyph = vport->backbuf[BB_POS(vport, col, row)].glyph;
		859	uint32_t fg_color = vport->backbuf[BB_POS(vport, col, row)].fg_color;
		860	uint32_t bg_color = vport->backbuf[BB_POS(vport, col, row)].bg_color;
		861
4419	trochtova	862	(*vport->dglyph)(x, y, cursor, screen.glyphs, glyph,
		863	fg_color, bg_color);
		864	}
		865
		866	/** Hide cursor if it is shown
		867	*
		868	*/
		869	static void cursor_hide(viewport_t *vport)
		870	{
		871	if ((vport->cursor_active) && (vport->cursor_shown)) {
		872	draw_vp_glyph(vport, false, vport->cur_col, vport->cur_row);
		873	vport->cursor_shown = false;
		874	}
		875	}
		876
		877
		878	/** Show cursor if cursor showing is enabled
		879	*
		880	*/
		881	static void cursor_show(viewport_t *vport)
		882	{
		883	/* Do not check for cursor_shown */
		884	if (vport->cursor_active) {
		885	draw_vp_glyph(vport, true, vport->cur_col, vport->cur_row);
		886	vport->cursor_shown = true;
		887	}
		888	}
		889
		890
		891	/** Invert cursor, if it is enabled
		892	*
		893	*/
		894	static void cursor_blink(viewport_t *vport)
		895	{
		896	if (vport->cursor_shown)
		897	cursor_hide(vport);
		898	else
		899	cursor_show(vport);
		900	}
		901
		902
		903	/** Draw character at given position relative to viewport
		904	*
		905	* @param vport Viewport identification
		906	* @param c Character to draw
		907	* @param col Screen position relative to viewport
		908	* @param row Screen position relative to viewport
		909	*
		910	*/
		911	static void draw_char(viewport_t *vport, wchar_t c, unsigned int col, unsigned int row)
		912	{
		913	bb_cell_t *bbp;
4420	trochtova	914
4419	trochtova	915	/* Do not hide cursor if we are going to overwrite it */
		916	if ((vport->cursor_active) && (vport->cursor_shown) &&
		917	((vport->cur_col != col) \|\| (vport->cur_row != row)))
		918	cursor_hide(vport);
4420	trochtova	919
4419	trochtova	920	bbp = &vport->backbuf[BB_POS(vport, col, row)];
		921	bbp->glyph = fb_font_glyph(c);
		922	bbp->fg_color = vport->attr.fg_color;
		923	bbp->bg_color = vport->attr.bg_color;
4420	trochtova	924
4419	trochtova	925	draw_vp_glyph(vport, false, col, row);
		926
		927	vport->cur_col = col;
		928	vport->cur_row = row;
		929
		930	vport->cur_col++;
		931	if (vport->cur_col >= vport->cols) {
		932	vport->cur_col = 0;
		933	vport->cur_row++;
		934	if (vport->cur_row >= vport->rows)
		935	vport->cur_row--;
		936	}
		937
		938	cursor_show(vport);
		939	}
		940
		941	/** Draw text data to viewport.
		942	*
		943	* @param vport Viewport id
		944	* @param data Text data.
4420	trochtova	945	* @param x Leftmost column of the area.
		946	* @param y Topmost row of the area.
		947	* @param w Number of rows.
		948	* @param h Number of columns.
		949	*
4419	trochtova	950	*/
		951	static void draw_text_data(viewport_t vport, keyfield_t data, unsigned int x,
		952	unsigned int y, unsigned int w, unsigned int h)
		953	{
4420	trochtova	954	unsigned int i;
		955	unsigned int j;
4419	trochtova	956	bb_cell_t *bbp;
		957	attrs_t *a;
		958	attr_rgb_t rgb;
4420	trochtova	959
4419	trochtova	960	for (j = 0; j < h; j++) {
		961	for (i = 0; i < w; i++) {
		962	unsigned int col = x + i;
		963	unsigned int row = y + j;
4420	trochtova	964
4419	trochtova	965	bbp = &vport->backbuf[BB_POS(vport, col, row)];
4420	trochtova	966
4419	trochtova	967	a = &data[j * w + i].attrs;
		968	rgb_from_attr(&rgb, a);
4420	trochtova	969
4419	trochtova	970	bbp->glyph = fb_font_glyph(data[j * w + i].character);
		971	bbp->fg_color = rgb.fg_color;
		972	bbp->bg_color = rgb.bg_color;
4420	trochtova	973
4419	trochtova	974	draw_vp_glyph(vport, false, col, row);
		975	}
		976	}
		977	cursor_show(vport);
		978	}
		979
		980
		981	static void putpixel_pixmap(void *data, unsigned int x, unsigned int y, uint32_t color)
		982	{
		983	int pm = ((int ) data);
		984	pixmap_t *pmap = &pixmaps[pm];
		985	unsigned int pos = (y * pmap->width + x) * screen.pixelbytes;
		986
		987	screen.rgb_conv(&pmap->data[pos], color);
		988	}
		989
		990
		991	static void putpixel(void *data, unsigned int x, unsigned int y, uint32_t color)
		992	{
		993	viewport_t vport = (viewport_t ) data;
		994	unsigned int dx = vport->x + x;
		995	unsigned int dy = vport->y + y;
		996
		997	screen.rgb_conv(&screen.fb_addr[FB_POS(dx, dy)], color);
		998	}
		999
		1000
		1001	/** Return first free pixmap
		1002	*
		1003	*/
		1004	static int find_free_pixmap(void)
		1005	{
		1006	unsigned int i;
		1007
		1008	for (i = 0; i < MAX_PIXMAPS; i++)
		1009	if (!pixmaps[i].data)
		1010	return i;
		1011
		1012	return -1;
		1013	}
		1014
		1015
		1016	/** Create a new pixmap and return appropriate ID
		1017	*
		1018	*/
		1019	static int shm2pixmap(unsigned char *shm, size_t size)
		1020	{
		1021	int pm;
		1022	pixmap_t *pmap;
		1023
		1024	pm = find_free_pixmap();
		1025	if (pm == -1)
		1026	return ELIMIT;
		1027
		1028	pmap = &pixmaps[pm];
		1029
		1030	if (ppm_get_data(shm, size, &pmap->width, &pmap->height))
		1031	return EINVAL;
		1032
		1033	pmap->data = malloc(pmap->width * pmap->height * screen.pixelbytes);
		1034	if (!pmap->data)
		1035	return ENOMEM;
		1036
		1037	ppm_draw(shm, size, 0, 0, pmap->width, pmap->height, putpixel_pixmap, (void *) &pm);
		1038
		1039	return pm;
		1040	}
		1041
		1042
		1043	/** Handle shared memory communication calls
		1044	*
		1045	* Protocol for drawing pixmaps:
		1046	* - FB_PREPARE_SHM(client shm identification)
		1047	* - IPC_M_AS_AREA_SEND
		1048	* - FB_DRAW_PPM(startx, starty)
		1049	* - FB_DROP_SHM
		1050	*
		1051	* Protocol for text drawing
		1052	* - IPC_M_AS_AREA_SEND
		1053	* - FB_DRAW_TEXT_DATA
		1054	*
		1055	* @param callid Callid of the current call
		1056	* @param call Current call data
		1057	* @param vp Active viewport
		1058	*
		1059	* @return false if the call was not handled byt this function, true otherwise
		1060	*
4537	trochtova	1061	* Note: this function is not thread-safe, you would have
		1062	* to redefine static variables with fibril_local.
4419	trochtova	1063	*
		1064	*/
		1065	static bool shm_handle(ipc_callid_t callid, ipc_call_t *call, int vp)
		1066	{
		1067	static keyfield_t *interbuffer = NULL;
		1068	static size_t intersize = 0;
		1069
		1070	static unsigned char *shm = NULL;
		1071	static ipcarg_t shm_id = 0;
		1072	static size_t shm_size;
		1073
		1074	bool handled = true;
		1075	int retval = EOK;
		1076	viewport_t *vport = &viewports[vp];
		1077	unsigned int x;
		1078	unsigned int y;
		1079	unsigned int w;
		1080	unsigned int h;
		1081
		1082	switch (IPC_GET_METHOD(*call)) {
		1083	case IPC_M_SHARE_OUT:
		1084	/* We accept one area for data interchange */
		1085	if (IPC_GET_ARG1(*call) == shm_id) {
		1086	void dest = as_get_mappable_page(IPC_GET_ARG2(call));
		1087	shm_size = IPC_GET_ARG2(*call);
4668	trochtova	1088	if (ipc_answer_1(callid, EOK, (sysarg_t) dest)) {
4419	trochtova	1089	shm_id = 0;
4668	trochtova	1090	return false;
		1091	}
		1092	shm = dest;
4419	trochtova	1093
		1094	if (shm[0] != 'P')
		1095	return false;
		1096
		1097	return true;
		1098	} else {
		1099	intersize = IPC_GET_ARG2(*call);
		1100	receive_comm_area(callid, call, (void *) &interbuffer);
		1101	}
		1102	return true;
		1103	case FB_PREPARE_SHM:
		1104	if (shm_id)
		1105	retval = EBUSY;
		1106	else
		1107	shm_id = IPC_GET_ARG1(*call);
		1108	break;
		1109
		1110	case FB_DROP_SHM:
		1111	if (shm) {
		1112	as_area_destroy(shm);
		1113	shm = NULL;
		1114	}
		1115	shm_id = 0;
		1116	break;
		1117
		1118	case FB_SHM2PIXMAP:
		1119	if (!shm) {
		1120	retval = EINVAL;
		1121	break;
		1122	}
		1123	retval = shm2pixmap(shm, shm_size);
		1124	break;
		1125	case FB_DRAW_PPM:
		1126	if (!shm) {
		1127	retval = EINVAL;
		1128	break;
		1129	}
		1130	x = IPC_GET_ARG1(*call);
		1131	y = IPC_GET_ARG2(*call);
		1132
		1133	if ((x > vport->width) \|\| (y > vport->height)) {
		1134	retval = EINVAL;
		1135	break;
		1136	}
		1137
		1138	ppm_draw(shm, shm_size, IPC_GET_ARG1(*call),
		1139	IPC_GET_ARG2(call), vport->width - x, vport->height - y, putpixel, (void ) vport);
		1140	break;
		1141	case FB_DRAW_TEXT_DATA:
		1142	x = IPC_GET_ARG1(*call);
		1143	y = IPC_GET_ARG2(*call);
		1144	w = IPC_GET_ARG3(*call);
		1145	h = IPC_GET_ARG4(*call);
		1146	if (!interbuffer) {
		1147	retval = EINVAL;
		1148	break;
		1149	}
		1150	if (x + w > vport->cols \|\| y + h > vport->rows) {
		1151	retval = EINVAL;
		1152	break;
		1153	}
		1154	if (intersize < w * h * sizeof(*interbuffer)) {
		1155	retval = EINVAL;
		1156	break;
		1157	}
		1158	draw_text_data(vport, interbuffer, x, y, w, h);
		1159	break;
		1160	default:
		1161	handled = false;
		1162	}
		1163
		1164	if (handled)
		1165	ipc_answer_0(callid, retval);
		1166	return handled;
		1167	}
		1168
		1169
		1170	static void copy_vp_to_pixmap(viewport_t vport, pixmap_t pmap)
		1171	{
		1172	unsigned int width = vport->width;
		1173	unsigned int height = vport->height;
		1174
		1175	if (width + vport->x > screen.xres)
		1176	width = screen.xres - vport->x;
		1177	if (height + vport->y > screen.yres)
		1178	height = screen.yres - vport->y;
		1179
		1180	unsigned int realwidth = pmap->width <= width ? pmap->width : width;
		1181	unsigned int realheight = pmap->height <= height ? pmap->height : height;
		1182
		1183	unsigned int srcrowsize = vport->width * screen.pixelbytes;
		1184	unsigned int realrowsize = realwidth * screen.pixelbytes;
		1185
		1186	unsigned int y;
		1187	for (y = 0; y < realheight; y++) {
		1188	unsigned int tmp = (vport->y + y) * screen.scanline + vport->x * screen.pixelbytes;
		1189	memcpy(pmap->data + srcrowsize * y, screen.fb_addr + tmp, realrowsize);
		1190	}
		1191	}
		1192
		1193
		1194	/** Save viewport to pixmap
		1195	*
		1196	*/
		1197	static int save_vp_to_pixmap(viewport_t *vport)
		1198	{
		1199	int pm;
		1200	pixmap_t *pmap;
		1201
		1202	pm = find_free_pixmap();
		1203	if (pm == -1)
		1204	return ELIMIT;
		1205
		1206	pmap = &pixmaps[pm];
		1207	pmap->data = malloc(screen.pixelbytes * vport->width * vport->height);
		1208	if (!pmap->data)
		1209	return ENOMEM;
		1210
		1211	pmap->width = vport->width;
		1212	pmap->height = vport->height;
		1213
		1214	copy_vp_to_pixmap(vport, pmap);
		1215
		1216	return pm;
		1217	}
		1218
		1219
		1220	/** Draw pixmap on screen
		1221	*
		1222	* @param vp Viewport to draw on
		1223	* @param pm Pixmap identifier
		1224	*
		1225	*/
		1226	static int draw_pixmap(int vp, int pm)
		1227	{
		1228	pixmap_t *pmap = &pixmaps[pm];
		1229	viewport_t *vport = &viewports[vp];
		1230
		1231	unsigned int width = vport->width;
		1232	unsigned int height = vport->height;
		1233
		1234	if (width + vport->x > screen.xres)
		1235	width = screen.xres - vport->x;
		1236	if (height + vport->y > screen.yres)
		1237	height = screen.yres - vport->y;
		1238
		1239	if (!pmap->data)
		1240	return EINVAL;
		1241
		1242	unsigned int realwidth = pmap->width <= width ? pmap->width : width;
		1243	unsigned int realheight = pmap->height <= height ? pmap->height : height;
		1244
		1245	unsigned int srcrowsize = vport->width * screen.pixelbytes;
		1246	unsigned int realrowsize = realwidth * screen.pixelbytes;
		1247
		1248	unsigned int y;
		1249	for (y = 0; y < realheight; y++) {
		1250	unsigned int tmp = (vport->y + y) * screen.scanline + vport->x * screen.pixelbytes;
		1251	memcpy(screen.fb_addr + tmp, pmap->data + y * srcrowsize, realrowsize);
		1252	}
		1253
		1254	return EOK;
		1255	}
		1256
		1257
		1258	/** Tick animation one step forward
		1259	*
		1260	*/
		1261	static void anims_tick(void)
		1262	{
		1263	unsigned int i;
		1264	static int counts = 0;
		1265
		1266	/* Limit redrawing */
		1267	counts = (counts + 1) % 8;
		1268	if (counts)
		1269	return;
4420	trochtova	1270
4419	trochtova	1271	for (i = 0; i < MAX_ANIMATIONS; i++) {
		1272	if ((!animations[i].animlen) \|\| (!animations[i].initialized) \|\|
		1273	(!animations[i].enabled))
		1274	continue;
		1275
		1276	draw_pixmap(animations[i].vp, animations[i].pixmaps[animations[i].pos]);
		1277	animations[i].pos = (animations[i].pos + 1) % animations[i].animlen;
		1278	}
		1279	}
		1280
		1281
		1282	static unsigned int pointer_x;
		1283	static unsigned int pointer_y;
		1284	static bool pointer_shown, pointer_enabled;
		1285	static int pointer_vport = -1;
		1286	static int pointer_pixmap = -1;
		1287
		1288
		1289	static void mouse_show(void)
		1290	{
		1291	int i, j;
		1292	int visibility;
		1293	int color;
		1294	int bytepos;
		1295
		1296	if ((pointer_shown) \|\| (!pointer_enabled))
		1297	return;
		1298
		1299	/* Save image under the pointer. */
		1300	if (pointer_vport == -1) {
		1301	pointer_vport = vport_create(pointer_x, pointer_y, pointer_width, pointer_height);
		1302	if (pointer_vport < 0)
		1303	return;
		1304	} else {
		1305	viewports[pointer_vport].x = pointer_x;
		1306	viewports[pointer_vport].y = pointer_y;
		1307	}
		1308
		1309	if (pointer_pixmap == -1)
		1310	pointer_pixmap = save_vp_to_pixmap(&viewports[pointer_vport]);
		1311	else
		1312	copy_vp_to_pixmap(&viewports[pointer_vport], &pixmaps[pointer_pixmap]);
		1313
		1314	/* Draw mouse pointer. */
		1315	for (i = 0; i < pointer_height; i++)
		1316	for (j = 0; j < pointer_width; j++) {
		1317	bytepos = i * ((pointer_width - 1) / 8 + 1) + j / 8;
		1318	visibility = pointer_mask_bits[bytepos] &
		1319	(1 << (j % 8));
		1320	if (visibility) {
		1321	color = pointer_bits[bytepos] &
		1322	(1 << (j % 8)) ? 0 : 0xffffff;
		1323	if (pointer_x + j < screen.xres && pointer_y +
		1324	i < screen.yres)
		1325	putpixel(&viewports[0], pointer_x + j,
		1326	pointer_y + i, color);
		1327	}
		1328	}
		1329	pointer_shown = 1;
		1330	}
		1331
		1332
		1333	static void mouse_hide(void)
		1334	{
		1335	/* Restore image under the pointer. */
		1336	if (pointer_shown) {
		1337	draw_pixmap(pointer_vport, pointer_pixmap);
		1338	pointer_shown = 0;
		1339	}
		1340	}
		1341
		1342
		1343	static void mouse_move(unsigned int x, unsigned int y)
		1344	{
		1345	mouse_hide();
		1346	pointer_x = x;
		1347	pointer_y = y;
		1348	mouse_show();
		1349	}
		1350
		1351
		1352	static int anim_handle(ipc_callid_t callid, ipc_call_t *call, int vp)
		1353	{
		1354	bool handled = true;
		1355	int retval = EOK;
		1356	int i, nvp;
		1357	int newval;
		1358
		1359	switch (IPC_GET_METHOD(*call)) {
		1360	case FB_ANIM_CREATE:
		1361	nvp = IPC_GET_ARG1(*call);
		1362	if (nvp == -1)
		1363	nvp = vp;
		1364	if (nvp >= MAX_VIEWPORTS \|\| nvp < 0 \|\|
		1365	!viewports[nvp].initialized) {
		1366	retval = EINVAL;
		1367	break;
		1368	}
		1369	for (i = 0; i < MAX_ANIMATIONS; i++) {
		1370	if (!animations[i].initialized)
		1371	break;
		1372	}
		1373	if (i == MAX_ANIMATIONS) {
		1374	retval = ELIMIT;
		1375	break;
		1376	}
		1377	animations[i].initialized = 1;
		1378	animations[i].animlen = 0;
		1379	animations[i].pos = 0;
		1380	animations[i].enabled = 0;
		1381	animations[i].vp = nvp;
		1382	retval = i;
		1383	break;
		1384	case FB_ANIM_DROP:
		1385	i = IPC_GET_ARG1(*call);
		1386	if (i >= MAX_ANIMATIONS \|\| i < 0) {
		1387	retval = EINVAL;
		1388	break;
		1389	}
		1390	animations[i].initialized = 0;
		1391	break;
		1392	case FB_ANIM_ADDPIXMAP:
		1393	i = IPC_GET_ARG1(*call);
		1394	if (i >= MAX_ANIMATIONS \|\| i < 0 \|\|
		1395	!animations[i].initialized) {
		1396	retval = EINVAL;
		1397	break;
		1398	}
		1399	if (animations[i].animlen == MAX_ANIM_LEN) {
		1400	retval = ELIMIT;
		1401	break;
		1402	}
		1403	newval = IPC_GET_ARG2(*call);
		1404	if (newval < 0 \|\| newval > MAX_PIXMAPS \|\|
		1405	!pixmaps[newval].data) {
		1406	retval = EINVAL;
		1407	break;
		1408	}
		1409	animations[i].pixmaps[animations[i].animlen++] = newval;
		1410	break;
		1411	case FB_ANIM_CHGVP:
		1412	i = IPC_GET_ARG1(*call);
		1413	if (i >= MAX_ANIMATIONS \|\| i < 0) {
		1414	retval = EINVAL;
		1415	break;
		1416	}
		1417	nvp = IPC_GET_ARG2(*call);
		1418	if (nvp == -1)
		1419	nvp = vp;
		1420	if (nvp >= MAX_VIEWPORTS \|\| nvp < 0 \|\|
		1421	!viewports[nvp].initialized) {
		1422	retval = EINVAL;
		1423	break;
		1424	}
		1425	animations[i].vp = nvp;
		1426	break;
		1427	case FB_ANIM_START:
		1428	case FB_ANIM_STOP:
		1429	i = IPC_GET_ARG1(*call);
		1430	if (i >= MAX_ANIMATIONS \|\| i < 0) {
		1431	retval = EINVAL;
		1432	break;
		1433	}
		1434	newval = (IPC_GET_METHOD(*call) == FB_ANIM_START);
		1435	if (newval ^ animations[i].enabled) {
		1436	animations[i].enabled = newval;
		1437	anims_enabled += newval ? 1 : -1;
		1438	}
		1439	break;
		1440	default:
		1441	handled = 0;
		1442	}
		1443	if (handled)
		1444	ipc_answer_0(callid, retval);
		1445	return handled;
		1446	}
		1447
		1448
		1449	/** Handler for messages concerning pixmap handling
		1450	*
		1451	*/
		1452	static int pixmap_handle(ipc_callid_t callid, ipc_call_t *call, int vp)
		1453	{
		1454	bool handled = true;
		1455	int retval = EOK;
		1456	int i, nvp;
		1457
		1458	switch (IPC_GET_METHOD(*call)) {
		1459	case FB_VP_DRAW_PIXMAP:
		1460	nvp = IPC_GET_ARG1(*call);
		1461	if (nvp == -1)
		1462	nvp = vp;
		1463	if (nvp < 0 \|\| nvp >= MAX_VIEWPORTS \|\|
		1464	!viewports[nvp].initialized) {
		1465	retval = EINVAL;
		1466	break;
		1467	}
		1468	i = IPC_GET_ARG2(*call);
		1469	retval = draw_pixmap(nvp, i);
		1470	break;
		1471	case FB_VP2PIXMAP:
		1472	nvp = IPC_GET_ARG1(*call);
		1473	if (nvp == -1)
		1474	nvp = vp;
		1475	if (nvp < 0 \|\| nvp >= MAX_VIEWPORTS \|\|
		1476	!viewports[nvp].initialized)
		1477	retval = EINVAL;
		1478	else
		1479	retval = save_vp_to_pixmap(&viewports[nvp]);
		1480	break;
		1481	case FB_DROP_PIXMAP:
		1482	i = IPC_GET_ARG1(*call);
		1483	if (i >= MAX_PIXMAPS) {
		1484	retval = EINVAL;
		1485	break;
		1486	}
		1487	if (pixmaps[i].data) {
		1488	free(pixmaps[i].data);
		1489	pixmaps[i].data = NULL;
		1490	}
		1491	break;
		1492	default:
		1493	handled = 0;
		1494	}
		1495
		1496	if (handled)
		1497	ipc_answer_0(callid, retval);
		1498	return handled;
		1499
		1500	}
		1501
		1502	static int rgb_from_style(attr_rgb_t *rgb, int style)
		1503	{
		1504	switch (style) {
		1505	case STYLE_NORMAL:
		1506	rgb->fg_color = color_table[COLOR_BLACK];
		1507	rgb->bg_color = color_table[COLOR_WHITE];
		1508	break;
		1509	case STYLE_EMPHASIS:
		1510	rgb->fg_color = color_table[COLOR_RED];
		1511	rgb->bg_color = color_table[COLOR_WHITE];
		1512	break;
		1513	default:
		1514	return EINVAL;
		1515	}
		1516
		1517	return EOK;
		1518	}
		1519
		1520	static int rgb_from_idx(attr_rgb_t *rgb, ipcarg_t fg_color,
		1521	ipcarg_t bg_color, ipcarg_t flags)
		1522	{
		1523	fg_color = (fg_color & 7) \| ((flags & CATTR_BRIGHT) ? 8 : 0);
		1524	bg_color = (bg_color & 7) \| ((flags & CATTR_BRIGHT) ? 8 : 0);
		1525
		1526	rgb->fg_color = color_table[fg_color];
		1527	rgb->bg_color = color_table[bg_color];
		1528
		1529	return EOK;
		1530	}
		1531
		1532	static int rgb_from_attr(attr_rgb_t rgb, const attrs_t a)
		1533	{
		1534	int rc;
		1535
		1536	switch (a->t) {
		1537	case at_style:
		1538	rc = rgb_from_style(rgb, a->a.s.style);
		1539	break;
		1540	case at_idx:
		1541	rc = rgb_from_idx(rgb, a->a.i.fg_color,
		1542	a->a.i.bg_color, a->a.i.flags);
		1543	break;
		1544	case at_rgb:
		1545	*rgb = a->a.r;
		1546	rc = EOK;
		1547	break;
		1548	}
		1549
		1550	return rc;
		1551	}
		1552
		1553	static int fb_set_style(viewport_t *vport, ipcarg_t style)
		1554	{
		1555	return rgb_from_style(&vport->attr, (int) style);
		1556	}
		1557
		1558	static int fb_set_color(viewport_t *vport, ipcarg_t fg_color,
		1559	ipcarg_t bg_color, ipcarg_t flags)
		1560	{
		1561	return rgb_from_idx(&vport->attr, fg_color, bg_color, flags);
		1562	}
		1563
		1564	/** Function for handling connections to FB
		1565	*
		1566	*/
		1567	static void fb_client_connection(ipc_callid_t iid, ipc_call_t *icall)
		1568	{
		1569	unsigned int vp = 0;
		1570	viewport_t *vport = &viewports[vp];
		1571
		1572	if (client_connected) {
		1573	ipc_answer_0(iid, ELIMIT);
		1574	return;
		1575	}
		1576
		1577	/* Accept connection */
		1578	client_connected = true;
		1579	ipc_answer_0(iid, EOK);
		1580
		1581	while (true) {
		1582	ipc_callid_t callid;
		1583	ipc_call_t call;
		1584	int retval;
		1585	unsigned int i;
		1586	int scroll;
		1587	wchar_t ch;
4537	trochtova	1588	unsigned int col, row;
4419	trochtova	1589
		1590	if ((vport->cursor_active) \|\| (anims_enabled))
		1591	callid = async_get_call_timeout(&call, 250000);
		1592	else
		1593	callid = async_get_call(&call);
		1594
		1595	mouse_hide();
		1596	if (!callid) {
		1597	cursor_blink(vport);
		1598	anims_tick();
		1599	mouse_show();
		1600	continue;
		1601	}
		1602
		1603	if (shm_handle(callid, &call, vp))
		1604	continue;
		1605
		1606	if (pixmap_handle(callid, &call, vp))
		1607	continue;
		1608
		1609	if (anim_handle(callid, &call, vp))
		1610	continue;
		1611
		1612	switch (IPC_GET_METHOD(call)) {
		1613	case IPC_M_PHONE_HUNGUP:
		1614	client_connected = false;
		1615
		1616	/* Cleanup other viewports */
		1617	for (i = 1; i < MAX_VIEWPORTS; i++)
		1618	vport->initialized = false;
		1619
		1620	/* Exit thread */
		1621	return;
		1622
		1623	case FB_PUTCHAR:
		1624	ch = IPC_GET_ARG1(call);
4537	trochtova	1625	col = IPC_GET_ARG2(call);
		1626	row = IPC_GET_ARG3(call);
4419	trochtova	1627
		1628	if ((col >= vport->cols) \|\| (row >= vport->rows)) {
		1629	retval = EINVAL;
		1630	break;
		1631	}
		1632	ipc_answer_0(callid, EOK);
		1633
		1634	draw_char(vport, ch, col, row);
		1635
		1636	/* Message already answered */
		1637	continue;
		1638	case FB_CLEAR:
		1639	vport_clear(vport);
		1640	cursor_show(vport);
		1641	retval = EOK;
		1642	break;
		1643	case FB_CURSOR_GOTO:
4537	trochtova	1644	col = IPC_GET_ARG1(call);
		1645	row = IPC_GET_ARG2(call);
4419	trochtova	1646
		1647	if ((col >= vport->cols) \|\| (row >= vport->rows)) {
		1648	retval = EINVAL;
		1649	break;
		1650	}
		1651	retval = EOK;
		1652
		1653	cursor_hide(vport);
		1654	vport->cur_col = col;
		1655	vport->cur_row = row;
		1656	cursor_show(vport);
		1657	break;
		1658	case FB_CURSOR_VISIBILITY:
		1659	cursor_hide(vport);
		1660	vport->cursor_active = IPC_GET_ARG1(call);
		1661	cursor_show(vport);
		1662	retval = EOK;
		1663	break;
		1664	case FB_GET_CSIZE:
4537	trochtova	1665	ipc_answer_2(callid, EOK, vport->cols, vport->rows);
4419	trochtova	1666	continue;
4668	trochtova	1667	case FB_GET_COLOR_CAP:
		1668	ipc_answer_1(callid, EOK, FB_CCAP_RGB);
		1669	continue;
4419	trochtova	1670	case FB_SCROLL:
		1671	scroll = IPC_GET_ARG1(call);
		1672	if ((scroll > (int) vport->rows) \|\| (scroll < (-(int) vport->rows))) {
		1673	retval = EINVAL;
		1674	break;
		1675	}
		1676	cursor_hide(vport);
		1677	vport_scroll(vport, scroll);
		1678	cursor_show(vport);
		1679	retval = EOK;
		1680	break;
		1681	case FB_VIEWPORT_SWITCH:
		1682	i = IPC_GET_ARG1(call);
		1683	if (i >= MAX_VIEWPORTS) {
		1684	retval = EINVAL;
		1685	break;
		1686	}
		1687	if (!viewports[i].initialized) {
		1688	retval = EADDRNOTAVAIL;
		1689	break;
		1690	}
		1691	cursor_hide(vport);
		1692	vp = i;
		1693	vport = &viewports[vp];
		1694	cursor_show(vport);
		1695	retval = EOK;
		1696	break;
		1697	case FB_VIEWPORT_CREATE:
		1698	retval = vport_create(IPC_GET_ARG1(call) >> 16,
		1699	IPC_GET_ARG1(call) & 0xffff,
		1700	IPC_GET_ARG2(call) >> 16,
		1701	IPC_GET_ARG2(call) & 0xffff);
		1702	break;
		1703	case FB_VIEWPORT_DELETE:
		1704	i = IPC_GET_ARG1(call);
		1705	if (i >= MAX_VIEWPORTS) {
		1706	retval = EINVAL;
		1707	break;
		1708	}
		1709	if (!viewports[i].initialized) {
		1710	retval = EADDRNOTAVAIL;
		1711	break;
		1712	}
		1713	viewports[i].initialized = false;
		1714	if (viewports[i].bgpixel)
		1715	free(viewports[i].bgpixel);
		1716	if (viewports[i].backbuf)
		1717	free(viewports[i].backbuf);
		1718	retval = EOK;
		1719	break;
		1720	case FB_SET_STYLE:
		1721	retval = fb_set_style(vport, IPC_GET_ARG1(call));
		1722	break;
		1723	case FB_SET_COLOR:
		1724	retval = fb_set_color(vport, IPC_GET_ARG1(call),
		1725	IPC_GET_ARG2(call), IPC_GET_ARG3(call));
		1726	break;
		1727	case FB_SET_RGB_COLOR:
		1728	vport->attr.fg_color = IPC_GET_ARG1(call);
		1729	vport->attr.bg_color = IPC_GET_ARG2(call);
		1730	retval = EOK;
		1731	break;
		1732	case FB_GET_RESOLUTION:
		1733	ipc_answer_2(callid, EOK, screen.xres, screen.yres);
		1734	continue;
		1735	case FB_POINTER_MOVE:
		1736	pointer_enabled = true;
		1737	mouse_move(IPC_GET_ARG1(call), IPC_GET_ARG2(call));
		1738	retval = EOK;
		1739	break;
4420	trochtova	1740	case FB_SCREEN_YIELD:
		1741	case FB_SCREEN_RECLAIM:
		1742	retval = EOK;
		1743	break;
4419	trochtova	1744	default:
		1745	retval = ENOENT;
		1746	}
		1747	ipc_answer_0(callid, retval);
		1748	}
		1749	}
		1750
		1751	/** Initialization of framebuffer
		1752	*
		1753	*/
		1754	int fb_init(void)
		1755	{
		1756	async_set_client_connection(fb_client_connection);
		1757
		1758	void fb_ph_addr = (void ) sysinfo_value("fb.address.physical");
		1759	unsigned int fb_offset = sysinfo_value("fb.offset");
		1760	unsigned int fb_width = sysinfo_value("fb.width");
		1761	unsigned int fb_height = sysinfo_value("fb.height");
		1762	unsigned int fb_scanline = sysinfo_value("fb.scanline");
		1763	unsigned int fb_visual = sysinfo_value("fb.visual");
4678	trochtova	1764
4419	trochtova	1765	unsigned int fbsize = fb_scanline * fb_height;
		1766	void *fb_addr = as_get_mappable_page(fbsize);
4678	trochtova	1767
4419	trochtova	1768	if (physmem_map(fb_ph_addr + fb_offset, fb_addr,
		1769	ALIGN_UP(fbsize, PAGE_SIZE) >> PAGE_WIDTH, AS_AREA_READ \| AS_AREA_WRITE) != 0)
		1770	return -1;
4678	trochtova	1771
4419	trochtova	1772	if (screen_init(fb_addr, fb_width, fb_height, fb_scanline, fb_visual))
		1773	return 0;
4678	trochtova	1774
4419	trochtova	1775	return -1;
		1776	}
		1777
		1778	/**
		1779	* @}
		1780	*/

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(root)/branches/dd/uspace/srv/fb/fb.c – Rev 4688