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
4678	trochtova	292	static void bgr_555(void *dst, uint32_t rgb)
4419	trochtova	293	{
4678	trochtova	294	uint8_t hi = (BLUE(rgb, 5) \| (GREEN(rgb, 5) << 5)) & 0xff;
		295	uint8_t lo = (GREEN(rgb, 5) >> 3) \| (RED(rgb, 5) << 2);
		296	((uint16_t ) dst) = host2uint16_t_be((hi << 8) \| lo);
4419	trochtova	297	}
		298
4420	trochtova	299	static void mask_555(void *dst, bool mask)
		300	{
4678	trochtova	301	bgr_555(dst, mask ? 0xffffff : 0);
4420	trochtova	302	}
4419	trochtova	303
4678	trochtova	304	static void bgr_565(void *dst, uint32_t rgb)
4419	trochtova	305	{
4678	trochtova	306	uint8_t hi = (BLUE(rgb, 5) \| (GREEN(rgb, 6) << 5)) & 0xff;
		307	uint8_t lo = (GREEN(rgb, 6) >> 3) \| (RED(rgb, 5) << 3);
		308	((uint16_t ) dst) = host2uint16_t_be((hi << 8) \| lo);
4419	trochtova	309	}
		310
4420	trochtova	311	static void mask_565(void *dst, bool mask)
		312	{
4678	trochtova	313	bgr_565(dst, mask ? 0xffffff : 0);
4420	trochtova	314	}
4419	trochtova	315
4678	trochtova	316	static void bgr_323(void *dst, uint32_t rgb)
4419	trochtova	317	{
		318	((uint8_t ) dst)
		319	= ~((RED(rgb, 3) << 5) \| (GREEN(rgb, 2) << 3) \| BLUE(rgb, 3));
		320	}
		321
4420	trochtova	322	static void mask_323(void *dst, bool mask)
		323	{
4678	trochtova	324	bgr_323(dst, mask ? 0x0 : ~0x0);
4420	trochtova	325	}
		326
4419	trochtova	327	/** Draw a filled rectangle.
		328	*
		329	* @note Need real implementation that does not access VRAM twice.
4420	trochtova	330	*
4419	trochtova	331	*/
		332	static void draw_filled_rect(unsigned int x0, unsigned int y0, unsigned int x1,
		333	unsigned int y1, uint32_t color)
		334	{
4420	trochtova	335	unsigned int x;
		336	unsigned int y;
4419	trochtova	337	unsigned int copy_bytes;
4420	trochtova	338
		339	uint8_t *sp;
		340	uint8_t *dp;
4419	trochtova	341	uint8_t cbuf[4];
4420	trochtova	342
		343	if ((y0 >= y1) \|\| (x0 >= x1))
		344	return;
		345
4419	trochtova	346	screen.rgb_conv(cbuf, color);
4420	trochtova	347
4419	trochtova	348	sp = &screen.fb_addr[FB_POS(x0, y0)];
		349	dp = sp;
4420	trochtova	350
4419	trochtova	351	/* Draw the first line. */
		352	for (x = x0; x < x1; x++) {
		353	memcpy(dp, cbuf, screen.pixelbytes);
		354	dp += screen.pixelbytes;
		355	}
4420	trochtova	356
4419	trochtova	357	dp = sp + screen.scanline;
		358	copy_bytes = (x1 - x0) * screen.pixelbytes;
4420	trochtova	359
4419	trochtova	360	/* Draw the remaining lines by copying. */
		361	for (y = y0 + 1; y < y1; y++) {
		362	memcpy(dp, sp, copy_bytes);
		363	dp += screen.scanline;
		364	}
		365	}
		366
		367	/** Redraw viewport.
		368	*
		369	* @param vport Viewport to redraw
		370	*
		371	*/
		372	static void vport_redraw(viewport_t *vport)
		373	{
4537	trochtova	374	unsigned int col;
4420	trochtova	375	unsigned int row;
		376
4419	trochtova	377	for (row = 0; row < vport->rows; row++) {
		378	for (col = 0; col < vport->cols; col++) {
		379	draw_vp_glyph(vport, false, col, row);
		380	}
		381	}
4420	trochtova	382
4419	trochtova	383	if (COL2X(vport->cols) < vport->width) {
		384	draw_filled_rect(
		385	vport->x + COL2X(vport->cols), vport->y,
		386	vport->x + vport->width, vport->y + vport->height,
		387	vport->attr.bg_color);
		388	}
4420	trochtova	389
4419	trochtova	390	if (ROW2Y(vport->rows) < vport->height) {
		391	draw_filled_rect(
		392	vport->x, vport->y + ROW2Y(vport->rows),
		393	vport->x + vport->width, vport->y + vport->height,
		394	vport->attr.bg_color);
		395	}
		396	}
		397
		398	static void backbuf_clear(bb_cell_t *backbuf, size_t len, uint32_t fg_color,
		399	uint32_t bg_color)
		400	{
4420	trochtova	401	size_t i;
		402
4419	trochtova	403	for (i = 0; i < len; i++) {
		404	backbuf[i].glyph = 0;
		405	backbuf[i].fg_color = fg_color;
		406	backbuf[i].bg_color = bg_color;
		407	}
		408	}
		409
		410	/** Clear viewport.
		411	*
		412	* @param vport Viewport to clear
		413	*
		414	*/
		415	static void vport_clear(viewport_t *vport)
		416	{
		417	backbuf_clear(vport->backbuf, vport->cols * vport->rows,
		418	vport->attr.fg_color, vport->attr.bg_color);
		419	vport_redraw(vport);
		420	}
		421
		422	/** Scroll viewport by the specified number of lines.
		423	*
		424	* @param vport Viewport to scroll
		425	* @param lines Number of lines to scroll
		426	*
		427	*/
		428	static void vport_scroll(viewport_t *vport, int lines)
		429	{
4537	trochtova	430	unsigned int col;
4420	trochtova	431	unsigned int row;
		432	unsigned int x;
		433	unsigned int y;
4419	trochtova	434	uint32_t glyph;
		435	uint32_t fg_color;
		436	uint32_t bg_color;
4420	trochtova	437	bb_cell_t *bbp;
		438	bb_cell_t *xbp;
		439
4419	trochtova	440	/*
		441	* Redraw.
		442	*/
4420	trochtova	443
4419	trochtova	444	y = vport->y;
		445	for (row = 0; row < vport->rows; row++) {
		446	x = vport->x;
		447	for (col = 0; col < vport->cols; col++) {
4668	trochtova	448	if (((int) row + lines >= 0) &&
		449	((int) row + lines < (int) vport->rows)) {
4419	trochtova	450	xbp = &vport->backbuf[BB_POS(vport, col, row + lines)];
		451	bbp = &vport->backbuf[BB_POS(vport, col, row)];
4420	trochtova	452
4419	trochtova	453	glyph = xbp->glyph;
		454	fg_color = xbp->fg_color;
		455	bg_color = xbp->bg_color;
4420	trochtova	456
		457	if ((bbp->glyph == glyph)
		458	&& (bbp->fg_color == xbp->fg_color)
		459	&& (bbp->bg_color == xbp->bg_color)) {
4419	trochtova	460	x += FONT_WIDTH;
		461	continue;
		462	}
		463	} else {
		464	glyph = 0;
		465	fg_color = vport->attr.fg_color;
		466	bg_color = vport->attr.bg_color;
		467	}
4420	trochtova	468
4419	trochtova	469	(*vport->dglyph)(x, y, false, screen.glyphs, glyph,
		470	fg_color, bg_color);
		471	x += FONT_WIDTH;
		472	}
		473	y += FONT_SCANLINES;
		474	}
4420	trochtova	475
4419	trochtova	476	/*
		477	* Scroll backbuffer.
		478	*/
4420	trochtova	479
4419	trochtova	480	if (lines > 0) {
		481	memmove(vport->backbuf, vport->backbuf + vport->cols * lines,
		482	vport->cols * (vport->rows - lines) * sizeof(bb_cell_t));
		483	backbuf_clear(&vport->backbuf[BB_POS(vport, 0, vport->rows - lines)],
		484	vport->cols * lines, vport->attr.fg_color, vport->attr.bg_color);
		485	} else {
		486	memmove(vport->backbuf - vport->cols * lines, vport->backbuf,
		487	vport->cols * (vport->rows + lines) * sizeof(bb_cell_t));
		488	backbuf_clear(vport->backbuf, - vport->cols * lines,
		489	vport->attr.fg_color, vport->attr.bg_color);
		490	}
		491	}
		492
		493	/** Render glyphs
		494	*
		495	* Convert glyphs from device independent font
		496	* description to current visual representation.
4420	trochtova	497	*
4419	trochtova	498	*/
		499	static void render_glyphs(void)
		500	{
		501	unsigned int glyph;
4420	trochtova	502
4419	trochtova	503	for (glyph = 0; glyph < FONT_GLYPHS; glyph++) {
		504	unsigned int y;
4420	trochtova	505
4419	trochtova	506	for (y = 0; y < FONT_SCANLINES; y++) {
		507	unsigned int x;
4420	trochtova	508
4419	trochtova	509	for (x = 0; x < FONT_WIDTH; x++) {
4420	trochtova	510	screen.mask_conv(&screen.glyphs[GLYPH_POS(glyph, y, false) + x * screen.pixelbytes],
		511	(fb_font[glyph][y] & (1 << (7 - x))) ? true : false);
		512
		513	screen.mask_conv(&screen.glyphs[GLYPH_POS(glyph, y, true) + x * screen.pixelbytes],
		514	(fb_font[glyph][y] & (1 << (7 - x))) ? false : true);
4419	trochtova	515	}
		516	}
		517	}
		518	}
		519
		520	/** Create new viewport
		521	*
		522	* @param x Origin of the viewport (x).
		523	* @param y Origin of the viewport (y).
		524	* @param width Width of the viewport.
		525	* @param height Height of the viewport.
		526	*
		527	* @return New viewport number.
		528	*
		529	*/
		530	static int vport_create(unsigned int x, unsigned int y,
		531	unsigned int width, unsigned int height)
		532	{
		533	unsigned int i;
		534
		535	for (i = 0; i < MAX_VIEWPORTS; i++) {
		536	if (!viewports[i].initialized)
		537	break;
		538	}
4420	trochtova	539
4419	trochtova	540	if (i == MAX_VIEWPORTS)
		541	return ELIMIT;
		542
		543	unsigned int cols = width / FONT_WIDTH;
		544	unsigned int rows = height / FONT_SCANLINES;
		545	unsigned int bbsize = cols * rows * sizeof(bb_cell_t);
		546	unsigned int word_size = sizeof(unsigned long);
		547
		548	bb_cell_t backbuf = (bb_cell_t ) malloc(bbsize);
		549	if (!backbuf)
		550	return ENOMEM;
		551
		552	uint8_t bgpixel = (uint8_t ) malloc(screen.pixelbytes);
		553	if (!bgpixel) {
		554	free(backbuf);
		555	return ENOMEM;
		556	}
4420	trochtova	557
4419	trochtova	558	backbuf_clear(backbuf, cols * rows, DEFAULT_FGCOLOR, DEFAULT_BGCOLOR);
		559	memset(bgpixel, 0, screen.pixelbytes);
		560
		561	viewports[i].x = x;
		562	viewports[i].y = y;
		563	viewports[i].width = width;
		564	viewports[i].height = height;
		565
		566	viewports[i].cols = cols;
		567	viewports[i].rows = rows;
		568
		569	viewports[i].attr.bg_color = DEFAULT_BGCOLOR;
		570	viewports[i].attr.fg_color = DEFAULT_FGCOLOR;
		571
		572	viewports[i].bgpixel = bgpixel;
4420	trochtova	573
4419	trochtova	574	/*
4420	trochtova	575	* Conditions necessary to select aligned version:
		576	* - word size is divisible by pixelbytes
		577	* - cell scanline size is divisible by word size
		578	* - cell scanlines are word-aligned
4419	trochtova	579	*
		580	*/
4420	trochtova	581	if (((word_size % screen.pixelbytes) == 0)
		582	&& ((FONT_WIDTH * screen.pixelbytes) % word_size == 0)
		583	&& ((x * screen.pixelbytes) % word_size == 0)
		584	&& (screen.scanline % word_size == 0)) {
4419	trochtova	585	viewports[i].dglyph = draw_glyph_aligned;
		586	} else {
		587	viewports[i].dglyph = draw_glyph_fallback;
		588	}
4420	trochtova	589
4419	trochtova	590	viewports[i].cur_col = 0;
		591	viewports[i].cur_row = 0;
		592	viewports[i].cursor_active = false;
		593	viewports[i].cursor_shown = false;
		594
		595	viewports[i].bbsize = bbsize;
		596	viewports[i].backbuf = backbuf;
		597
		598	viewports[i].initialized = true;
		599
		600	screen.rgb_conv(viewports[i].bgpixel, viewports[i].attr.bg_color);
		601
		602	return i;
		603	}
		604
		605
		606	/** Initialize framebuffer as a chardev output device
		607	*
		608	* @param addr Address of the framebuffer
		609	* @param xres Screen width in pixels
		610	* @param yres Screen height in pixels
		611	* @param visual Bits per pixel (8, 16, 24, 32)
		612	* @param scan Bytes per one scanline
		613	*
		614	*/
		615	static bool screen_init(void *addr, unsigned int xres, unsigned int yres,
		616	unsigned int scan, unsigned int visual)
		617	{
		618	switch (visual) {
		619	case VISUAL_INDIRECT_8:
4678	trochtova	620	screen.rgb_conv = bgr_323;
4420	trochtova	621	screen.mask_conv = mask_323;
4419	trochtova	622	screen.pixelbytes = 1;
		623	break;
4678	trochtova	624	case VISUAL_BGR_5_5_5:
		625	screen.rgb_conv = bgr_555;
4420	trochtova	626	screen.mask_conv = mask_555;
4419	trochtova	627	screen.pixelbytes = 2;
		628	break;
4678	trochtova	629	case VISUAL_BGR_5_6_5:
		630	screen.rgb_conv = bgr_565;
4420	trochtova	631	screen.mask_conv = mask_565;
4419	trochtova	632	screen.pixelbytes = 2;
		633	break;
		634	case VISUAL_RGB_8_8_8:
		635	screen.rgb_conv = rgb_888;
4420	trochtova	636	screen.mask_conv = mask_888;
4419	trochtova	637	screen.pixelbytes = 3;
		638	break;
		639	case VISUAL_BGR_8_8_8:
		640	screen.rgb_conv = bgr_888;
4420	trochtova	641	screen.mask_conv = mask_888;
4419	trochtova	642	screen.pixelbytes = 3;
		643	break;
		644	case VISUAL_RGB_8_8_8_0:
4678	trochtova	645	screen.rgb_conv = rgb_8880;
		646	screen.mask_conv = mask_8880;
4419	trochtova	647	screen.pixelbytes = 4;
		648	break;
		649	case VISUAL_RGB_0_8_8_8:
		650	screen.rgb_conv = rgb_0888;
4420	trochtova	651	screen.mask_conv = mask_0888;
4419	trochtova	652	screen.pixelbytes = 4;
		653	break;
		654	case VISUAL_BGR_0_8_8_8:
		655	screen.rgb_conv = bgr_0888;
4420	trochtova	656	screen.mask_conv = mask_0888;
4419	trochtova	657	screen.pixelbytes = 4;
		658	break;
4678	trochtova	659	case VISUAL_BGR_8_8_8_0:
		660	screen.rgb_conv = bgr_8880;
		661	screen.mask_conv = mask_8880;
		662	screen.pixelbytes = 4;
		663	break;
4419	trochtova	664	default:
		665	return false;
		666	}
4420	trochtova	667
4419	trochtova	668	screen.fb_addr = (unsigned char *) addr;
		669	screen.xres = xres;
		670	screen.yres = yres;
		671	screen.scanline = scan;
		672
		673	screen.glyphscanline = FONT_WIDTH * screen.pixelbytes;
		674	screen.glyphbytes = screen.glyphscanline * FONT_SCANLINES;
4420	trochtova	675
		676	size_t glyphsize = 2 * FONT_GLYPHS * screen.glyphbytes;
		677	uint8_t glyphs = (uint8_t ) malloc(glyphsize);
4419	trochtova	678	if (!glyphs)
		679	return false;
		680
		681	memset(glyphs, 0, glyphsize);
		682	screen.glyphs = glyphs;
4420	trochtova	683
4419	trochtova	684	render_glyphs();
		685
		686	/* Create first viewport */
		687	vport_create(0, 0, xres, yres);
		688
		689	return true;
		690	}
		691
		692
		693	/** Draw a glyph, takes advantage of alignment.
		694	*
		695	* This version can only be used if the following conditions are met:
		696	*
		697	* - word size is divisible by pixelbytes
		698	* - cell scanline size is divisible by word size
		699	* - cell scanlines are word-aligned
		700	*
		701	* It makes use of the pre-rendered mask to process (possibly) several
		702	* pixels at once (word size / pixelbytes pixels at a time are processed)
		703	* making it very fast. Most notably this version is not applicable at 24 bits
		704	* per pixel.
		705	*
4420	trochtova	706	* @param x x coordinate of top-left corner on screen.
		707	* @param y y coordinate of top-left corner on screen.
		708	* @param cursor Draw glyph with cursor
		709	* @param glyphs Pointer to font bitmap.
		710	* @param glyph Code of the glyph to draw.
		711	* @param fg_color Foreground color.
		712	* @param bg_color Backgroudn color.
		713	*
4419	trochtova	714	*/
		715	static void draw_glyph_aligned(unsigned int x, unsigned int y, bool cursor,
		716	uint8_t *glyphs, uint32_t glyph, uint32_t fg_color, uint32_t bg_color)
		717	{
4420	trochtova	718	unsigned int i;
		719	unsigned int yd;
		720	unsigned long fg_buf;
		721	unsigned long bg_buf;
4419	trochtova	722	unsigned long mask;
4420	trochtova	723
4419	trochtova	724	/*
		725	* Prepare a pair of words, one filled with foreground-color
		726	* pattern and the other filled with background-color pattern.
		727	*/
		728	for (i = 0; i < sizeof(unsigned long) / screen.pixelbytes; i++) {
4420	trochtova	729	screen.rgb_conv(&((uint8_t ) &fg_buf)[i screen.pixelbytes],
4419	trochtova	730	fg_color);
4420	trochtova	731	screen.rgb_conv(&((uint8_t ) &bg_buf)[i screen.pixelbytes],
4419	trochtova	732	bg_color);
		733	}
4420	trochtova	734
4419	trochtova	735	/* Pointer to the current position in the mask. */
4420	trochtova	736	unsigned long maskp = (unsigned long ) &glyphs[GLYPH_POS(glyph, 0, cursor)];
		737
4419	trochtova	738	/* Pointer to the current position on the screen. */
4420	trochtova	739	unsigned long dp = (unsigned long ) &screen.fb_addr[FB_POS(x, y)];
		740
4419	trochtova	741	/* Width of the character cell in words. */
4420	trochtova	742	unsigned int ww = FONT_WIDTH * screen.pixelbytes / sizeof(unsigned long);
		743
4419	trochtova	744	/* Offset to add when moving to another screen scanline. */
4420	trochtova	745	unsigned int d_add = screen.scanline - FONT_WIDTH * screen.pixelbytes;
		746
4419	trochtova	747	for (yd = 0; yd < FONT_SCANLINES; yd++) {
		748	/*
		749	* Now process the cell scanline, combining foreground
		750	* and background color patters using the pre-rendered mask.
		751	*/
		752	for (i = 0; i < ww; i++) {
		753	mask = *maskp++;
		754	*dp++ = (fg_buf & mask) \| (bg_buf & ~mask);
		755	}
4420	trochtova	756
4419	trochtova	757	/* Move to the beginning of the next scanline of the cell. */
		758	dp = (unsigned long ) ((uint8_t ) dp + d_add);
		759	}
		760	}
		761
		762	/** Draw a glyph, fallback version.
		763	*
		764	* This version does not make use of the pre-rendered mask, it uses
		765	* the font bitmap directly. It works always, but it is slower.
		766	*
4420	trochtova	767	* @param x x coordinate of top-left corner on screen.
		768	* @param y y coordinate of top-left corner on screen.
		769	* @param cursor Draw glyph with cursor
		770	* @param glyphs Pointer to font bitmap.
		771	* @param glyph Code of the glyph to draw.
		772	* @param fg_color Foreground color.
		773	* @param bg_color Backgroudn color.
		774	*
4419	trochtova	775	*/
		776	void draw_glyph_fallback(unsigned int x, unsigned int y, bool cursor,
		777	uint8_t *glyphs, uint32_t glyph, uint32_t fg_color, uint32_t bg_color)
		778	{
4420	trochtova	779	unsigned int i;
		780	unsigned int j;
		781	unsigned int yd;
		782	uint8_t fg_buf[4];
		783	uint8_t bg_buf[4];
		784	uint8_t *sp;
4419	trochtova	785	uint8_t b;
4420	trochtova	786
4419	trochtova	787	/* Pre-render 1x the foreground and background color pixels. */
		788	if (cursor) {
		789	screen.rgb_conv(fg_buf, bg_color);
		790	screen.rgb_conv(bg_buf, fg_color);
		791	} else {
		792	screen.rgb_conv(fg_buf, fg_color);
		793	screen.rgb_conv(bg_buf, bg_color);
		794	}
4420	trochtova	795
4419	trochtova	796	/* Pointer to the current position on the screen. */
4420	trochtova	797	uint8_t dp = (uint8_t ) &screen.fb_addr[FB_POS(x, y)];
		798
4419	trochtova	799	/* Offset to add when moving to another screen scanline. */
4420	trochtova	800	unsigned int d_add = screen.scanline - FONT_WIDTH * screen.pixelbytes;
		801
4419	trochtova	802	for (yd = 0; yd < FONT_SCANLINES; yd++) {
		803	/* Byte containing bits of the glyph scanline. */
		804	b = fb_font[glyph][yd];
4420	trochtova	805
4419	trochtova	806	for (i = 0; i < FONT_WIDTH; i++) {
		807	/* Choose color based on the current bit. */
		808	sp = (b & 0x80) ? fg_buf : bg_buf;
4420	trochtova	809
4419	trochtova	810	/* Copy the pixel. */
		811	for (j = 0; j < screen.pixelbytes; j++) {
		812	dp++ = sp++;
		813	}
4420	trochtova	814
4419	trochtova	815	/* Move to the next bit. */
		816	b = b << 1;
		817	}
		818
		819	/* Move to the beginning of the next scanline of the cell. */
		820	dp += d_add;
		821	}
		822	}
		823
4420	trochtova	824	/** Draw glyph at specified position in viewport.
4419	trochtova	825	*
		826	* @param vport Viewport identification
		827	* @param cursor Draw glyph with cursor
		828	* @param col Screen position relative to viewport
		829	* @param row Screen position relative to viewport
		830	*
		831	*/
		832	static void draw_vp_glyph(viewport_t *vport, bool cursor, unsigned int col,
		833	unsigned int row)
		834	{
		835	unsigned int x = vport->x + COL2X(col);
		836	unsigned int y = vport->y + ROW2Y(row);
		837
4420	trochtova	838	uint32_t glyph = vport->backbuf[BB_POS(vport, col, row)].glyph;
		839	uint32_t fg_color = vport->backbuf[BB_POS(vport, col, row)].fg_color;
		840	uint32_t bg_color = vport->backbuf[BB_POS(vport, col, row)].bg_color;
		841
4419	trochtova	842	(*vport->dglyph)(x, y, cursor, screen.glyphs, glyph,
		843	fg_color, bg_color);
		844	}
		845
		846	/** Hide cursor if it is shown
		847	*
		848	*/
		849	static void cursor_hide(viewport_t *vport)
		850	{
		851	if ((vport->cursor_active) && (vport->cursor_shown)) {
		852	draw_vp_glyph(vport, false, vport->cur_col, vport->cur_row);
		853	vport->cursor_shown = false;
		854	}
		855	}
		856
		857
		858	/** Show cursor if cursor showing is enabled
		859	*
		860	*/
		861	static void cursor_show(viewport_t *vport)
		862	{
		863	/* Do not check for cursor_shown */
		864	if (vport->cursor_active) {
		865	draw_vp_glyph(vport, true, vport->cur_col, vport->cur_row);
		866	vport->cursor_shown = true;
		867	}
		868	}
		869
		870
		871	/** Invert cursor, if it is enabled
		872	*
		873	*/
		874	static void cursor_blink(viewport_t *vport)
		875	{
		876	if (vport->cursor_shown)
		877	cursor_hide(vport);
		878	else
		879	cursor_show(vport);
		880	}
		881
		882
		883	/** Draw character at given position relative to viewport
		884	*
		885	* @param vport Viewport identification
		886	* @param c Character to draw
		887	* @param col Screen position relative to viewport
		888	* @param row Screen position relative to viewport
		889	*
		890	*/
		891	static void draw_char(viewport_t *vport, wchar_t c, unsigned int col, unsigned int row)
		892	{
		893	bb_cell_t *bbp;
4420	trochtova	894
4419	trochtova	895	/* Do not hide cursor if we are going to overwrite it */
		896	if ((vport->cursor_active) && (vport->cursor_shown) &&
		897	((vport->cur_col != col) \|\| (vport->cur_row != row)))
		898	cursor_hide(vport);
4420	trochtova	899
4419	trochtova	900	bbp = &vport->backbuf[BB_POS(vport, col, row)];
		901	bbp->glyph = fb_font_glyph(c);
		902	bbp->fg_color = vport->attr.fg_color;
		903	bbp->bg_color = vport->attr.bg_color;
4420	trochtova	904
4419	trochtova	905	draw_vp_glyph(vport, false, col, row);
		906
		907	vport->cur_col = col;
		908	vport->cur_row = row;
		909
		910	vport->cur_col++;
		911	if (vport->cur_col >= vport->cols) {
		912	vport->cur_col = 0;
		913	vport->cur_row++;
		914	if (vport->cur_row >= vport->rows)
		915	vport->cur_row--;
		916	}
		917
		918	cursor_show(vport);
		919	}
		920
		921	/** Draw text data to viewport.
		922	*
		923	* @param vport Viewport id
		924	* @param data Text data.
4420	trochtova	925	* @param x Leftmost column of the area.
		926	* @param y Topmost row of the area.
		927	* @param w Number of rows.
		928	* @param h Number of columns.
		929	*
4419	trochtova	930	*/
		931	static void draw_text_data(viewport_t vport, keyfield_t data, unsigned int x,
		932	unsigned int y, unsigned int w, unsigned int h)
		933	{
4420	trochtova	934	unsigned int i;
		935	unsigned int j;
4419	trochtova	936	bb_cell_t *bbp;
		937	attrs_t *a;
		938	attr_rgb_t rgb;
4420	trochtova	939
4419	trochtova	940	for (j = 0; j < h; j++) {
		941	for (i = 0; i < w; i++) {
		942	unsigned int col = x + i;
		943	unsigned int row = y + j;
4420	trochtova	944
4419	trochtova	945	bbp = &vport->backbuf[BB_POS(vport, col, row)];
4420	trochtova	946
4419	trochtova	947	a = &data[j * w + i].attrs;
		948	rgb_from_attr(&rgb, a);
4420	trochtova	949
4419	trochtova	950	bbp->glyph = fb_font_glyph(data[j * w + i].character);
		951	bbp->fg_color = rgb.fg_color;
		952	bbp->bg_color = rgb.bg_color;
4420	trochtova	953
4419	trochtova	954	draw_vp_glyph(vport, false, col, row);
		955	}
		956	}
		957	cursor_show(vport);
		958	}
		959
		960
		961	static void putpixel_pixmap(void *data, unsigned int x, unsigned int y, uint32_t color)
		962	{
		963	int pm = ((int ) data);
		964	pixmap_t *pmap = &pixmaps[pm];
		965	unsigned int pos = (y * pmap->width + x) * screen.pixelbytes;
		966
		967	screen.rgb_conv(&pmap->data[pos], color);
		968	}
		969
		970
		971	static void putpixel(void *data, unsigned int x, unsigned int y, uint32_t color)
		972	{
		973	viewport_t vport = (viewport_t ) data;
		974	unsigned int dx = vport->x + x;
		975	unsigned int dy = vport->y + y;
		976
		977	screen.rgb_conv(&screen.fb_addr[FB_POS(dx, dy)], color);
		978	}
		979
		980
		981	/** Return first free pixmap
		982	*
		983	*/
		984	static int find_free_pixmap(void)
		985	{
		986	unsigned int i;
		987
		988	for (i = 0; i < MAX_PIXMAPS; i++)
		989	if (!pixmaps[i].data)
		990	return i;
		991
		992	return -1;
		993	}
		994
		995
		996	/** Create a new pixmap and return appropriate ID
		997	*
		998	*/
		999	static int shm2pixmap(unsigned char *shm, size_t size)
		1000	{
		1001	int pm;
		1002	pixmap_t *pmap;
		1003
		1004	pm = find_free_pixmap();
		1005	if (pm == -1)
		1006	return ELIMIT;
		1007
		1008	pmap = &pixmaps[pm];
		1009
		1010	if (ppm_get_data(shm, size, &pmap->width, &pmap->height))
		1011	return EINVAL;
		1012
		1013	pmap->data = malloc(pmap->width * pmap->height * screen.pixelbytes);
		1014	if (!pmap->data)
		1015	return ENOMEM;
		1016
		1017	ppm_draw(shm, size, 0, 0, pmap->width, pmap->height, putpixel_pixmap, (void *) &pm);
		1018
		1019	return pm;
		1020	}
		1021
		1022
		1023	/** Handle shared memory communication calls
		1024	*
		1025	* Protocol for drawing pixmaps:
		1026	* - FB_PREPARE_SHM(client shm identification)
		1027	* - IPC_M_AS_AREA_SEND
		1028	* - FB_DRAW_PPM(startx, starty)
		1029	* - FB_DROP_SHM
		1030	*
		1031	* Protocol for text drawing
		1032	* - IPC_M_AS_AREA_SEND
		1033	* - FB_DRAW_TEXT_DATA
		1034	*
		1035	* @param callid Callid of the current call
		1036	* @param call Current call data
		1037	* @param vp Active viewport
		1038	*
		1039	* @return false if the call was not handled byt this function, true otherwise
		1040	*
4537	trochtova	1041	* Note: this function is not thread-safe, you would have
		1042	* to redefine static variables with fibril_local.
4419	trochtova	1043	*
		1044	*/
		1045	static bool shm_handle(ipc_callid_t callid, ipc_call_t *call, int vp)
		1046	{
		1047	static keyfield_t *interbuffer = NULL;
		1048	static size_t intersize = 0;
		1049
		1050	static unsigned char *shm = NULL;
		1051	static ipcarg_t shm_id = 0;
		1052	static size_t shm_size;
		1053
		1054	bool handled = true;
		1055	int retval = EOK;
		1056	viewport_t *vport = &viewports[vp];
		1057	unsigned int x;
		1058	unsigned int y;
		1059	unsigned int w;
		1060	unsigned int h;
		1061
		1062	switch (IPC_GET_METHOD(*call)) {
		1063	case IPC_M_SHARE_OUT:
		1064	/* We accept one area for data interchange */
		1065	if (IPC_GET_ARG1(*call) == shm_id) {
		1066	void dest = as_get_mappable_page(IPC_GET_ARG2(call));
		1067	shm_size = IPC_GET_ARG2(*call);
4668	trochtova	1068	if (ipc_answer_1(callid, EOK, (sysarg_t) dest)) {
4419	trochtova	1069	shm_id = 0;
4668	trochtova	1070	return false;
		1071	}
		1072	shm = dest;
4419	trochtova	1073
		1074	if (shm[0] != 'P')
		1075	return false;
		1076
		1077	return true;
		1078	} else {
		1079	intersize = IPC_GET_ARG2(*call);
		1080	receive_comm_area(callid, call, (void *) &interbuffer);
		1081	}
		1082	return true;
		1083	case FB_PREPARE_SHM:
		1084	if (shm_id)
		1085	retval = EBUSY;
		1086	else
		1087	shm_id = IPC_GET_ARG1(*call);
		1088	break;
		1089
		1090	case FB_DROP_SHM:
		1091	if (shm) {
		1092	as_area_destroy(shm);
		1093	shm = NULL;
		1094	}
		1095	shm_id = 0;
		1096	break;
		1097
		1098	case FB_SHM2PIXMAP:
		1099	if (!shm) {
		1100	retval = EINVAL;
		1101	break;
		1102	}
		1103	retval = shm2pixmap(shm, shm_size);
		1104	break;
		1105	case FB_DRAW_PPM:
		1106	if (!shm) {
		1107	retval = EINVAL;
		1108	break;
		1109	}
		1110	x = IPC_GET_ARG1(*call);
		1111	y = IPC_GET_ARG2(*call);
		1112
		1113	if ((x > vport->width) \|\| (y > vport->height)) {
		1114	retval = EINVAL;
		1115	break;
		1116	}
		1117
		1118	ppm_draw(shm, shm_size, IPC_GET_ARG1(*call),
		1119	IPC_GET_ARG2(call), vport->width - x, vport->height - y, putpixel, (void ) vport);
		1120	break;
		1121	case FB_DRAW_TEXT_DATA:
		1122	x = IPC_GET_ARG1(*call);
		1123	y = IPC_GET_ARG2(*call);
		1124	w = IPC_GET_ARG3(*call);
		1125	h = IPC_GET_ARG4(*call);
		1126	if (!interbuffer) {
		1127	retval = EINVAL;
		1128	break;
		1129	}
		1130	if (x + w > vport->cols \|\| y + h > vport->rows) {
		1131	retval = EINVAL;
		1132	break;
		1133	}
		1134	if (intersize < w * h * sizeof(*interbuffer)) {
		1135	retval = EINVAL;
		1136	break;
		1137	}
		1138	draw_text_data(vport, interbuffer, x, y, w, h);
		1139	break;
		1140	default:
		1141	handled = false;
		1142	}
		1143
		1144	if (handled)
		1145	ipc_answer_0(callid, retval);
		1146	return handled;
		1147	}
		1148
		1149
		1150	static void copy_vp_to_pixmap(viewport_t vport, pixmap_t pmap)
		1151	{
		1152	unsigned int width = vport->width;
		1153	unsigned int height = vport->height;
		1154
		1155	if (width + vport->x > screen.xres)
		1156	width = screen.xres - vport->x;
		1157	if (height + vport->y > screen.yres)
		1158	height = screen.yres - vport->y;
		1159
		1160	unsigned int realwidth = pmap->width <= width ? pmap->width : width;
		1161	unsigned int realheight = pmap->height <= height ? pmap->height : height;
		1162
		1163	unsigned int srcrowsize = vport->width * screen.pixelbytes;
		1164	unsigned int realrowsize = realwidth * screen.pixelbytes;
		1165
		1166	unsigned int y;
		1167	for (y = 0; y < realheight; y++) {
		1168	unsigned int tmp = (vport->y + y) * screen.scanline + vport->x * screen.pixelbytes;
		1169	memcpy(pmap->data + srcrowsize * y, screen.fb_addr + tmp, realrowsize);
		1170	}
		1171	}
		1172
		1173
		1174	/** Save viewport to pixmap
		1175	*
		1176	*/
		1177	static int save_vp_to_pixmap(viewport_t *vport)
		1178	{
		1179	int pm;
		1180	pixmap_t *pmap;
		1181
		1182	pm = find_free_pixmap();
		1183	if (pm == -1)
		1184	return ELIMIT;
		1185
		1186	pmap = &pixmaps[pm];
		1187	pmap->data = malloc(screen.pixelbytes * vport->width * vport->height);
		1188	if (!pmap->data)
		1189	return ENOMEM;
		1190
		1191	pmap->width = vport->width;
		1192	pmap->height = vport->height;
		1193
		1194	copy_vp_to_pixmap(vport, pmap);
		1195
		1196	return pm;
		1197	}
		1198
		1199
		1200	/** Draw pixmap on screen
		1201	*
		1202	* @param vp Viewport to draw on
		1203	* @param pm Pixmap identifier
		1204	*
		1205	*/
		1206	static int draw_pixmap(int vp, int pm)
		1207	{
		1208	pixmap_t *pmap = &pixmaps[pm];
		1209	viewport_t *vport = &viewports[vp];
		1210
		1211	unsigned int width = vport->width;
		1212	unsigned int height = vport->height;
		1213
		1214	if (width + vport->x > screen.xres)
		1215	width = screen.xres - vport->x;
		1216	if (height + vport->y > screen.yres)
		1217	height = screen.yres - vport->y;
		1218
		1219	if (!pmap->data)
		1220	return EINVAL;
		1221
		1222	unsigned int realwidth = pmap->width <= width ? pmap->width : width;
		1223	unsigned int realheight = pmap->height <= height ? pmap->height : height;
		1224
		1225	unsigned int srcrowsize = vport->width * screen.pixelbytes;
		1226	unsigned int realrowsize = realwidth * screen.pixelbytes;
		1227
		1228	unsigned int y;
		1229	for (y = 0; y < realheight; y++) {
		1230	unsigned int tmp = (vport->y + y) * screen.scanline + vport->x * screen.pixelbytes;
		1231	memcpy(screen.fb_addr + tmp, pmap->data + y * srcrowsize, realrowsize);
		1232	}
		1233
		1234	return EOK;
		1235	}
		1236
		1237
		1238	/** Tick animation one step forward
		1239	*
		1240	*/
		1241	static void anims_tick(void)
		1242	{
		1243	unsigned int i;
		1244	static int counts = 0;
		1245
		1246	/* Limit redrawing */
		1247	counts = (counts + 1) % 8;
		1248	if (counts)
		1249	return;
4420	trochtova	1250
4419	trochtova	1251	for (i = 0; i < MAX_ANIMATIONS; i++) {
		1252	if ((!animations[i].animlen) \|\| (!animations[i].initialized) \|\|
		1253	(!animations[i].enabled))
		1254	continue;
		1255
		1256	draw_pixmap(animations[i].vp, animations[i].pixmaps[animations[i].pos]);
		1257	animations[i].pos = (animations[i].pos + 1) % animations[i].animlen;
		1258	}
		1259	}
		1260
		1261
		1262	static unsigned int pointer_x;
		1263	static unsigned int pointer_y;
		1264	static bool pointer_shown, pointer_enabled;
		1265	static int pointer_vport = -1;
		1266	static int pointer_pixmap = -1;
		1267
		1268
		1269	static void mouse_show(void)
		1270	{
		1271	int i, j;
		1272	int visibility;
		1273	int color;
		1274	int bytepos;
		1275
		1276	if ((pointer_shown) \|\| (!pointer_enabled))
		1277	return;
		1278
		1279	/* Save image under the pointer. */
		1280	if (pointer_vport == -1) {
		1281	pointer_vport = vport_create(pointer_x, pointer_y, pointer_width, pointer_height);
		1282	if (pointer_vport < 0)
		1283	return;
		1284	} else {
		1285	viewports[pointer_vport].x = pointer_x;
		1286	viewports[pointer_vport].y = pointer_y;
		1287	}
		1288
		1289	if (pointer_pixmap == -1)
		1290	pointer_pixmap = save_vp_to_pixmap(&viewports[pointer_vport]);
		1291	else
		1292	copy_vp_to_pixmap(&viewports[pointer_vport], &pixmaps[pointer_pixmap]);
		1293
		1294	/* Draw mouse pointer. */
		1295	for (i = 0; i < pointer_height; i++)
		1296	for (j = 0; j < pointer_width; j++) {
		1297	bytepos = i * ((pointer_width - 1) / 8 + 1) + j / 8;
		1298	visibility = pointer_mask_bits[bytepos] &
		1299	(1 << (j % 8));
		1300	if (visibility) {
		1301	color = pointer_bits[bytepos] &
		1302	(1 << (j % 8)) ? 0 : 0xffffff;
		1303	if (pointer_x + j < screen.xres && pointer_y +
		1304	i < screen.yres)
		1305	putpixel(&viewports[0], pointer_x + j,
		1306	pointer_y + i, color);
		1307	}
		1308	}
		1309	pointer_shown = 1;
		1310	}
		1311
		1312
		1313	static void mouse_hide(void)
		1314	{
		1315	/* Restore image under the pointer. */
		1316	if (pointer_shown) {
		1317	draw_pixmap(pointer_vport, pointer_pixmap);
		1318	pointer_shown = 0;
		1319	}
		1320	}
		1321
		1322
		1323	static void mouse_move(unsigned int x, unsigned int y)
		1324	{
		1325	mouse_hide();
		1326	pointer_x = x;
		1327	pointer_y = y;
		1328	mouse_show();
		1329	}
		1330
		1331
		1332	static int anim_handle(ipc_callid_t callid, ipc_call_t *call, int vp)
		1333	{
		1334	bool handled = true;
		1335	int retval = EOK;
		1336	int i, nvp;
		1337	int newval;
		1338
		1339	switch (IPC_GET_METHOD(*call)) {
		1340	case FB_ANIM_CREATE:
		1341	nvp = IPC_GET_ARG1(*call);
		1342	if (nvp == -1)
		1343	nvp = vp;
		1344	if (nvp >= MAX_VIEWPORTS \|\| nvp < 0 \|\|
		1345	!viewports[nvp].initialized) {
		1346	retval = EINVAL;
		1347	break;
		1348	}
		1349	for (i = 0; i < MAX_ANIMATIONS; i++) {
		1350	if (!animations[i].initialized)
		1351	break;
		1352	}
		1353	if (i == MAX_ANIMATIONS) {
		1354	retval = ELIMIT;
		1355	break;
		1356	}
		1357	animations[i].initialized = 1;
		1358	animations[i].animlen = 0;
		1359	animations[i].pos = 0;
		1360	animations[i].enabled = 0;
		1361	animations[i].vp = nvp;
		1362	retval = i;
		1363	break;
		1364	case FB_ANIM_DROP:
		1365	i = IPC_GET_ARG1(*call);
		1366	if (i >= MAX_ANIMATIONS \|\| i < 0) {
		1367	retval = EINVAL;
		1368	break;
		1369	}
		1370	animations[i].initialized = 0;
		1371	break;
		1372	case FB_ANIM_ADDPIXMAP:
		1373	i = IPC_GET_ARG1(*call);
		1374	if (i >= MAX_ANIMATIONS \|\| i < 0 \|\|
		1375	!animations[i].initialized) {
		1376	retval = EINVAL;
		1377	break;
		1378	}
		1379	if (animations[i].animlen == MAX_ANIM_LEN) {
		1380	retval = ELIMIT;
		1381	break;
		1382	}
		1383	newval = IPC_GET_ARG2(*call);
		1384	if (newval < 0 \|\| newval > MAX_PIXMAPS \|\|
		1385	!pixmaps[newval].data) {
		1386	retval = EINVAL;
		1387	break;
		1388	}
		1389	animations[i].pixmaps[animations[i].animlen++] = newval;
		1390	break;
		1391	case FB_ANIM_CHGVP:
		1392	i = IPC_GET_ARG1(*call);
		1393	if (i >= MAX_ANIMATIONS \|\| i < 0) {
		1394	retval = EINVAL;
		1395	break;
		1396	}
		1397	nvp = IPC_GET_ARG2(*call);
		1398	if (nvp == -1)
		1399	nvp = vp;
		1400	if (nvp >= MAX_VIEWPORTS \|\| nvp < 0 \|\|
		1401	!viewports[nvp].initialized) {
		1402	retval = EINVAL;
		1403	break;
		1404	}
		1405	animations[i].vp = nvp;
		1406	break;
		1407	case FB_ANIM_START:
		1408	case FB_ANIM_STOP:
		1409	i = IPC_GET_ARG1(*call);
		1410	if (i >= MAX_ANIMATIONS \|\| i < 0) {
		1411	retval = EINVAL;
		1412	break;
		1413	}
		1414	newval = (IPC_GET_METHOD(*call) == FB_ANIM_START);
		1415	if (newval ^ animations[i].enabled) {
		1416	animations[i].enabled = newval;
		1417	anims_enabled += newval ? 1 : -1;
		1418	}
		1419	break;
		1420	default:
		1421	handled = 0;
		1422	}
		1423	if (handled)
		1424	ipc_answer_0(callid, retval);
		1425	return handled;
		1426	}
		1427
		1428
		1429	/** Handler for messages concerning pixmap handling
		1430	*
		1431	*/
		1432	static int pixmap_handle(ipc_callid_t callid, ipc_call_t *call, int vp)
		1433	{
		1434	bool handled = true;
		1435	int retval = EOK;
		1436	int i, nvp;
		1437
		1438	switch (IPC_GET_METHOD(*call)) {
		1439	case FB_VP_DRAW_PIXMAP:
		1440	nvp = IPC_GET_ARG1(*call);
		1441	if (nvp == -1)
		1442	nvp = vp;
		1443	if (nvp < 0 \|\| nvp >= MAX_VIEWPORTS \|\|
		1444	!viewports[nvp].initialized) {
		1445	retval = EINVAL;
		1446	break;
		1447	}
		1448	i = IPC_GET_ARG2(*call);
		1449	retval = draw_pixmap(nvp, i);
		1450	break;
		1451	case FB_VP2PIXMAP:
		1452	nvp = IPC_GET_ARG1(*call);
		1453	if (nvp == -1)
		1454	nvp = vp;
		1455	if (nvp < 0 \|\| nvp >= MAX_VIEWPORTS \|\|
		1456	!viewports[nvp].initialized)
		1457	retval = EINVAL;
		1458	else
		1459	retval = save_vp_to_pixmap(&viewports[nvp]);
		1460	break;
		1461	case FB_DROP_PIXMAP:
		1462	i = IPC_GET_ARG1(*call);
		1463	if (i >= MAX_PIXMAPS) {
		1464	retval = EINVAL;
		1465	break;
		1466	}
		1467	if (pixmaps[i].data) {
		1468	free(pixmaps[i].data);
		1469	pixmaps[i].data = NULL;
		1470	}
		1471	break;
		1472	default:
		1473	handled = 0;
		1474	}
		1475
		1476	if (handled)
		1477	ipc_answer_0(callid, retval);
		1478	return handled;
		1479
		1480	}
		1481
		1482	static int rgb_from_style(attr_rgb_t *rgb, int style)
		1483	{
		1484	switch (style) {
		1485	case STYLE_NORMAL:
		1486	rgb->fg_color = color_table[COLOR_BLACK];
		1487	rgb->bg_color = color_table[COLOR_WHITE];
		1488	break;
		1489	case STYLE_EMPHASIS:
		1490	rgb->fg_color = color_table[COLOR_RED];
		1491	rgb->bg_color = color_table[COLOR_WHITE];
		1492	break;
		1493	default:
		1494	return EINVAL;
		1495	}
		1496
		1497	return EOK;
		1498	}
		1499
		1500	static int rgb_from_idx(attr_rgb_t *rgb, ipcarg_t fg_color,
		1501	ipcarg_t bg_color, ipcarg_t flags)
		1502	{
		1503	fg_color = (fg_color & 7) \| ((flags & CATTR_BRIGHT) ? 8 : 0);
		1504	bg_color = (bg_color & 7) \| ((flags & CATTR_BRIGHT) ? 8 : 0);
		1505
		1506	rgb->fg_color = color_table[fg_color];
		1507	rgb->bg_color = color_table[bg_color];
		1508
		1509	return EOK;
		1510	}
		1511
		1512	static int rgb_from_attr(attr_rgb_t rgb, const attrs_t a)
		1513	{
		1514	int rc;
		1515
		1516	switch (a->t) {
		1517	case at_style:
		1518	rc = rgb_from_style(rgb, a->a.s.style);
		1519	break;
		1520	case at_idx:
		1521	rc = rgb_from_idx(rgb, a->a.i.fg_color,
		1522	a->a.i.bg_color, a->a.i.flags);
		1523	break;
		1524	case at_rgb:
		1525	*rgb = a->a.r;
		1526	rc = EOK;
		1527	break;
		1528	}
		1529
		1530	return rc;
		1531	}
		1532
		1533	static int fb_set_style(viewport_t *vport, ipcarg_t style)
		1534	{
		1535	return rgb_from_style(&vport->attr, (int) style);
		1536	}
		1537
		1538	static int fb_set_color(viewport_t *vport, ipcarg_t fg_color,
		1539	ipcarg_t bg_color, ipcarg_t flags)
		1540	{
		1541	return rgb_from_idx(&vport->attr, fg_color, bg_color, flags);
		1542	}
		1543
		1544	/** Function for handling connections to FB
		1545	*
		1546	*/
		1547	static void fb_client_connection(ipc_callid_t iid, ipc_call_t *icall)
		1548	{
		1549	unsigned int vp = 0;
		1550	viewport_t *vport = &viewports[vp];
		1551
		1552	if (client_connected) {
		1553	ipc_answer_0(iid, ELIMIT);
		1554	return;
		1555	}
		1556
		1557	/* Accept connection */
		1558	client_connected = true;
		1559	ipc_answer_0(iid, EOK);
		1560
		1561	while (true) {
		1562	ipc_callid_t callid;
		1563	ipc_call_t call;
		1564	int retval;
		1565	unsigned int i;
		1566	int scroll;
		1567	wchar_t ch;
4537	trochtova	1568	unsigned int col, row;
4419	trochtova	1569
		1570	if ((vport->cursor_active) \|\| (anims_enabled))
		1571	callid = async_get_call_timeout(&call, 250000);
		1572	else
		1573	callid = async_get_call(&call);
		1574
		1575	mouse_hide();
		1576	if (!callid) {
		1577	cursor_blink(vport);
		1578	anims_tick();
		1579	mouse_show();
		1580	continue;
		1581	}
		1582
		1583	if (shm_handle(callid, &call, vp))
		1584	continue;
		1585
		1586	if (pixmap_handle(callid, &call, vp))
		1587	continue;
		1588
		1589	if (anim_handle(callid, &call, vp))
		1590	continue;
		1591
		1592	switch (IPC_GET_METHOD(call)) {
		1593	case IPC_M_PHONE_HUNGUP:
		1594	client_connected = false;
		1595
		1596	/* Cleanup other viewports */
		1597	for (i = 1; i < MAX_VIEWPORTS; i++)
		1598	vport->initialized = false;
		1599
		1600	/* Exit thread */
		1601	return;
		1602
		1603	case FB_PUTCHAR:
		1604	ch = IPC_GET_ARG1(call);
4537	trochtova	1605	col = IPC_GET_ARG2(call);
		1606	row = IPC_GET_ARG3(call);
4419	trochtova	1607
		1608	if ((col >= vport->cols) \|\| (row >= vport->rows)) {
		1609	retval = EINVAL;
		1610	break;
		1611	}
		1612	ipc_answer_0(callid, EOK);
		1613
		1614	draw_char(vport, ch, col, row);
		1615
		1616	/* Message already answered */
		1617	continue;
		1618	case FB_CLEAR:
		1619	vport_clear(vport);
		1620	cursor_show(vport);
		1621	retval = EOK;
		1622	break;
		1623	case FB_CURSOR_GOTO:
4537	trochtova	1624	col = IPC_GET_ARG1(call);
		1625	row = IPC_GET_ARG2(call);
4419	trochtova	1626
		1627	if ((col >= vport->cols) \|\| (row >= vport->rows)) {
		1628	retval = EINVAL;
		1629	break;
		1630	}
		1631	retval = EOK;
		1632
		1633	cursor_hide(vport);
		1634	vport->cur_col = col;
		1635	vport->cur_row = row;
		1636	cursor_show(vport);
		1637	break;
		1638	case FB_CURSOR_VISIBILITY:
		1639	cursor_hide(vport);
		1640	vport->cursor_active = IPC_GET_ARG1(call);
		1641	cursor_show(vport);
		1642	retval = EOK;
		1643	break;
		1644	case FB_GET_CSIZE:
4537	trochtova	1645	ipc_answer_2(callid, EOK, vport->cols, vport->rows);
4419	trochtova	1646	continue;
4668	trochtova	1647	case FB_GET_COLOR_CAP:
		1648	ipc_answer_1(callid, EOK, FB_CCAP_RGB);
		1649	continue;
4419	trochtova	1650	case FB_SCROLL:
		1651	scroll = IPC_GET_ARG1(call);
		1652	if ((scroll > (int) vport->rows) \|\| (scroll < (-(int) vport->rows))) {
		1653	retval = EINVAL;
		1654	break;
		1655	}
		1656	cursor_hide(vport);
		1657	vport_scroll(vport, scroll);
		1658	cursor_show(vport);
		1659	retval = EOK;
		1660	break;
		1661	case FB_VIEWPORT_SWITCH:
		1662	i = IPC_GET_ARG1(call);
		1663	if (i >= MAX_VIEWPORTS) {
		1664	retval = EINVAL;
		1665	break;
		1666	}
		1667	if (!viewports[i].initialized) {
		1668	retval = EADDRNOTAVAIL;
		1669	break;
		1670	}
		1671	cursor_hide(vport);
		1672	vp = i;
		1673	vport = &viewports[vp];
		1674	cursor_show(vport);
		1675	retval = EOK;
		1676	break;
		1677	case FB_VIEWPORT_CREATE:
		1678	retval = vport_create(IPC_GET_ARG1(call) >> 16,
		1679	IPC_GET_ARG1(call) & 0xffff,
		1680	IPC_GET_ARG2(call) >> 16,
		1681	IPC_GET_ARG2(call) & 0xffff);
		1682	break;
		1683	case FB_VIEWPORT_DELETE:
		1684	i = IPC_GET_ARG1(call);
		1685	if (i >= MAX_VIEWPORTS) {
		1686	retval = EINVAL;
		1687	break;
		1688	}
		1689	if (!viewports[i].initialized) {
		1690	retval = EADDRNOTAVAIL;
		1691	break;
		1692	}
		1693	viewports[i].initialized = false;
		1694	if (viewports[i].bgpixel)
		1695	free(viewports[i].bgpixel);
		1696	if (viewports[i].backbuf)
		1697	free(viewports[i].backbuf);
		1698	retval = EOK;
		1699	break;
		1700	case FB_SET_STYLE:
		1701	retval = fb_set_style(vport, IPC_GET_ARG1(call));
		1702	break;
		1703	case FB_SET_COLOR:
		1704	retval = fb_set_color(vport, IPC_GET_ARG1(call),
		1705	IPC_GET_ARG2(call), IPC_GET_ARG3(call));
		1706	break;
		1707	case FB_SET_RGB_COLOR:
		1708	vport->attr.fg_color = IPC_GET_ARG1(call);
		1709	vport->attr.bg_color = IPC_GET_ARG2(call);
		1710	retval = EOK;
		1711	break;
		1712	case FB_GET_RESOLUTION:
		1713	ipc_answer_2(callid, EOK, screen.xres, screen.yres);
		1714	continue;
		1715	case FB_POINTER_MOVE:
		1716	pointer_enabled = true;
		1717	mouse_move(IPC_GET_ARG1(call), IPC_GET_ARG2(call));
		1718	retval = EOK;
		1719	break;
4420	trochtova	1720	case FB_SCREEN_YIELD:
		1721	case FB_SCREEN_RECLAIM:
		1722	retval = EOK;
		1723	break;
4419	trochtova	1724	default:
		1725	retval = ENOENT;
		1726	}
		1727	ipc_answer_0(callid, retval);
		1728	}
		1729	}
		1730
		1731	/** Initialization of framebuffer
		1732	*
		1733	*/
		1734	int fb_init(void)
		1735	{
		1736	async_set_client_connection(fb_client_connection);
		1737
		1738	void fb_ph_addr = (void ) sysinfo_value("fb.address.physical");
		1739	unsigned int fb_offset = sysinfo_value("fb.offset");
		1740	unsigned int fb_width = sysinfo_value("fb.width");
		1741	unsigned int fb_height = sysinfo_value("fb.height");
		1742	unsigned int fb_scanline = sysinfo_value("fb.scanline");
		1743	unsigned int fb_visual = sysinfo_value("fb.visual");
4678	trochtova	1744
4419	trochtova	1745	unsigned int fbsize = fb_scanline * fb_height;
		1746	void *fb_addr = as_get_mappable_page(fbsize);
4678	trochtova	1747
4419	trochtova	1748	if (physmem_map(fb_ph_addr + fb_offset, fb_addr,
		1749	ALIGN_UP(fbsize, PAGE_SIZE) >> PAGE_WIDTH, AS_AREA_READ \| AS_AREA_WRITE) != 0)
		1750	return -1;
4678	trochtova	1751
4419	trochtova	1752	if (screen_init(fb_addr, fb_width, fb_height, fb_scanline, fb_visual))
		1753	return 0;
4678	trochtova	1754
4419	trochtova	1755	return -1;
		1756	}
		1757
		1758	/**
		1759	* @}
		1760	*/

Subversion Repositories HelenOS

(root)//branches/dd/uspace/srv/fb/fb.c – Rev 4678