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

Rev	Author	Line No.	Line
1363	vana	1	/*
3742	rimsky	2	* Copyright (c) 2008 Martin Decky
2071	jermar	3	* Copyright (c) 2006 Jakub Vana
		4	* Copyright (c) 2006 Ondrej Palkovsky
1363	vana	5	* All rights reserved.
		6	*
		7	* Redistribution and use in source and binary forms, with or without
		8	* modification, are permitted provided that the following conditions
		9	* are met:
		10	*
		11	* - Redistributions of source code must retain the above copyright
		12	* notice, this list of conditions and the following disclaimer.
		13	* - Redistributions in binary form must reproduce the above copyright
		14	* notice, this list of conditions and the following disclaimer in the
		15	* documentation and/or other materials provided with the distribution.
		16	* - The name of the author may not be used to endorse or promote products
		17	* derived from this software without specific prior written permission.
		18	*
		19	* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
		20	* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
		21	* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
		22	* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
		23	* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
		24	* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
		25	* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
		26	* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
		27	* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
		28	* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
		29	*/
		30
1740	jermar	31	/**
		32	* @defgroup fb Graphical framebuffer
		33	* @brief HelenOS graphical framebuffer.
1649	cejka	34	* @ingroup fbs
		35	* @{
3742	rimsky	36	*/
1888	jermar	37
1649	cejka	38	/** @file
		39	*/
		40
1430	jermar	41	#include <stdlib.h>
		42	#include <unistd.h>
		43	#include <string.h>
1363	vana	44	#include <ddi.h>
		45	#include <sysinfo.h>
		46	#include <align.h>
		47	#include <as.h>
		48	#include <ipc/fb.h>
		49	#include <ipc/ipc.h>
1430	jermar	50	#include <ipc/ns.h>
1363	vana	51	#include <ipc/services.h>
		52	#include <kernel/errno.h>
1993	decky	53	#include <kernel/genarch/fb/visuals.h>
1392	palkovsky	54	#include <async.h>
1993	decky	55	#include <bool.h>
1505	palkovsky	56
1404	palkovsky	57	#include "font-8x16.h"
1363	vana	58	#include "fb.h"
1505	palkovsky	59	#include "main.h"
		60	#include "../console/screenbuffer.h"
1547	palkovsky	61	#include "ppm.h"
1363	vana	62
1711	palkovsky	63	#include "pointer.xbm"
		64	#include "pointer_mask.xbm"
		65
3742	rimsky	66	#define DEFAULT_BGCOLOR 0xf0f0f0
		67	#define DEFAULT_FGCOLOR 0x000000
1363	vana	68
3742	rimsky	69	#define MAX_ANIM_LEN 8
		70	#define MAX_ANIMATIONS 4
		71	#define MAX_PIXMAPS 256 /*< Maximum number of saved pixmaps /
		72	#define MAX_VIEWPORTS 128 /*< Viewport is a rectangular area on the screen /
1363	vana	73
3745	rimsky	74	/** Function to render a pixel from a RGB value. */
3742	rimsky	75	typedef void (rgb_conv_t)(void , uint32_t);
1363	vana	76
3745	rimsky	77	/** Function to draw a glyph. */
		78	typedef void (*dg_t)(unsigned int x, unsigned int y, bool cursor,
		79	uint8_t *glyphs, uint8_t glyph, uint32_t fg_color, uint32_t bg_color);
		80
1485	palkovsky	81	struct {
3742	rimsky	82	uint8_t *fb_addr;
		83
1875	jermar	84	unsigned int xres;
		85	unsigned int yres;
3742	rimsky	86
1875	jermar	87	unsigned int scanline;
3742	rimsky	88	unsigned int glyphscanline;
		89
1875	jermar	90	unsigned int pixelbytes;
3742	rimsky	91	unsigned int glyphbytes;
		92
		93	rgb_conv_t rgb_conv;
1485	palkovsky	94	} screen;
1363	vana	95
1485	palkovsky	96	typedef struct {
3742	rimsky	97	bool initialized;
		98	unsigned int x;
		99	unsigned int y;
		100	unsigned int width;
		101	unsigned int height;
		102
1485	palkovsky	103	/* Text support in window */
3742	rimsky	104	unsigned int cols;
		105	unsigned int rows;
		106
3745	rimsky	107	/*
		108	* Style and glyphs for text printing
		109	*/
		110
		111	/** Current style. */
1509	palkovsky	112	style_t style;
3745	rimsky	113
		114	/** Pre-rendered mask for rendering glyphs. Different viewports
		115	* might use different drawing functions depending on whether their
		116	* scanlines are aligned on a word boundary.*/
3742	rimsky	117	uint8_t *glyphs;
3745	rimsky	118
3742	rimsky	119	uint8_t *bgpixel;
3745	rimsky	120
		121	/** Glyph drawing function for this viewport. */
		122	dg_t dglyph;
3742	rimsky	123
1485	palkovsky	124	/* Auto-cursor position */
3742	rimsky	125	bool cursor_active;
		126	unsigned int cur_col;
		127	unsigned int cur_row;
		128	bool cursor_shown;
		129
		130	/* Back buffer */
		131	unsigned int bbsize;
		132	uint8_t *backbuf;
1485	palkovsky	133	} viewport_t;
1363	vana	134
1646	palkovsky	135	typedef struct {
3742	rimsky	136	bool initialized;
		137	bool enabled;
1646	palkovsky	138	unsigned int vp;
3742	rimsky	139
1646	palkovsky	140	unsigned int pos;
		141	unsigned int animlen;
		142	unsigned int pixmaps[MAX_ANIM_LEN];
		143	} animation_t;
3742	rimsky	144
1646	palkovsky	145	static animation_t animations[MAX_ANIMATIONS];
3742	rimsky	146	static bool anims_enabled;
1646	palkovsky	147
1552	palkovsky	148	typedef struct {
		149	unsigned int width;
		150	unsigned int height;
1781	jermar	151	uint8_t *data;
1552	palkovsky	152	} pixmap_t;
3742	rimsky	153
1552	palkovsky	154	static pixmap_t pixmaps[MAX_PIXMAPS];
1485	palkovsky	155	static viewport_t viewports[128];
		156
3742	rimsky	157	static bool client_connected = false; /*< Allow only 1 connection /
1485	palkovsky	158
3745	rimsky	159	static void draw_glyph_aligned(unsigned int x, unsigned int y, bool cursor,
		160	uint8_t *glyphs, uint8_t glyph, uint32_t fg_color, uint32_t bg_color);
		161	static void draw_glyph_fallback(unsigned int x, unsigned int y, bool cursor,
		162	uint8_t *glyphs, uint8_t glyph, uint32_t fg_color, uint32_t bg_color);
		163
		164	static void draw_vp_glyph(viewport_t *vport, bool cursor, unsigned int col,
		165	unsigned int row);
		166
		167
3742	rimsky	168	#define RED(x, bits) ((x >> (8 + 8 + 8 - bits)) & ((1 << bits) - 1))
		169	#define GREEN(x, bits) ((x >> (8 + 8 - bits)) & ((1 << bits) - 1))
		170	#define BLUE(x, bits) ((x >> (8 - bits)) & ((1 << bits) - 1))
1363	vana	171
3742	rimsky	172	#define COL2X(col) ((col) * FONT_WIDTH)
		173	#define ROW2Y(row) ((row) * FONT_SCANLINES)
1363	vana	174
3742	rimsky	175	#define X2COL(x) ((x) / FONT_WIDTH)
		176	#define Y2ROW(y) ((y) / FONT_SCANLINES)
1363	vana	177
3742	rimsky	178	#define FB_POS(x, y) ((y) * screen.scanline + (x) * screen.pixelbytes)
		179	#define BB_POS(vport, col, row) ((row) * vport->cols + (col))
		180	#define GLYPH_POS(glyph, y, cursor) (((glyph) + (cursor) * FONT_GLYPHS) * screen.glyphbytes + (y) * screen.glyphscanline)
1875	jermar	181
1363	vana	182
3742	rimsky	183	/** ARGB 8:8:8:8 conversion
		184	*
		185	*/
		186	static void rgb_0888(void *dst, uint32_t rgb)
1363	vana	187	{
3742	rimsky	188	((uint32_t ) dst) = rgb & 0xffffff;
1363	vana	189	}
		190
1994	decky	191
3742	rimsky	192	/** ABGR 8:8:8:8 conversion
		193	*
		194	*/
		195	static void bgr_0888(void *dst, uint32_t rgb)
1994	decky	196	{
3742	rimsky	197	((uint32_t ) dst)
		198	= (BLUE(rgb, 8) << 16) \| (GREEN(rgb, 8) << 8) \| RED(rgb, 8);
1994	decky	199	}
		200
3742	rimsky	201
		202	/** BGR 8:8:8 conversion
		203	*
		204	*/
		205	static void rgb_888(void *dst, uint32_t rgb)
1363	vana	206	{
1871	jermar	207	#if defined(FB_INVERT_ENDIAN)
3742	rimsky	208	((uint8_t *) dst)[0] = RED(rgb, 8);
		209	((uint8_t *) dst)[1] = GREEN(rgb, 8);
		210	((uint8_t *) dst)[2] = BLUE(rgb, 8);
1363	vana	211	#else
3742	rimsky	212	((uint8_t *) dst)[0] = BLUE(rgb, 8);
		213	((uint8_t *) dst)[1] = GREEN(rgb, 8);
		214	((uint8_t *) dst)[2] = RED(rgb, 8);
1363	vana	215	#endif
		216	}
		217
		218
3742	rimsky	219	/** RGB 5:5:5 conversion
		220	*
		221	*/
		222	static void rgb_555(void *dst, uint32_t rgb)
1993	decky	223	{
3742	rimsky	224	((uint16_t ) dst)
		225	= (RED(rgb, 5) << 10) \| (GREEN(rgb, 5) << 5) \| BLUE(rgb, 5);
1993	decky	226	}
		227
		228
3742	rimsky	229	/** RGB 5:6:5 conversion
		230	*
		231	*/
		232	static void rgb_565(void *dst, uint32_t rgb)
1363	vana	233	{
3742	rimsky	234	((uint16_t ) dst)
		235	= (RED(rgb, 5) << 11) \| (GREEN(rgb, 6) << 5) \| BLUE(rgb, 5);
1363	vana	236	}
		237
		238
3742	rimsky	239	/** RGB 3:2:3
		240	*
		241	*/
		242	static void rgb_323(void *dst, uint32_t rgb)
1363	vana	243	{
3742	rimsky	244	((uint8_t ) dst)
		245	= ~((RED(rgb, 3) << 5) \| (GREEN(rgb, 2) << 3) \| BLUE(rgb, 3));
1363	vana	246	}
		247
3745	rimsky	248	/** Draw a filled rectangle.
		249	*
		250	* @note Need real implementation that does not access VRAM twice.
		251	*/
		252	static void draw_filled_rect(unsigned int x0, unsigned int y0, unsigned int x1,
		253	unsigned int y1, uint32_t color)
		254	{
		255	unsigned int x, y;
		256	unsigned int copy_bytes;
1363	vana	257
3745	rimsky	258	uint8_t sp, dp;
		259	uint8_t cbuf[4];
		260
		261	if (y0 >= y1 \|\| x0 >= x1) return;
		262	screen.rgb_conv(cbuf, color);
		263
		264	sp = &screen.fb_addr[FB_POS(x0, y0)];
		265	dp = sp;
		266
		267	/* Draw the first line. */
		268	for (x = x0; x < x1; x++) {
		269	memcpy(dp, cbuf, screen.pixelbytes);
		270	dp += screen.pixelbytes;
		271	}
		272
		273	dp = sp + screen.scanline;
		274	copy_bytes = (x1 - x0) * screen.pixelbytes;
		275
		276	/* Draw the remaining lines by copying. */
		277	for (y = y0 + 1; y < y1; y++) {
		278	memcpy(dp, sp, copy_bytes);
		279	dp += screen.scanline;
		280	}
		281	}
		282
		283	/** Redraw viewport.
1498	palkovsky	284	*
3742	rimsky	285	* @param vport Viewport to redraw
		286	*
1498	palkovsky	287	*/
3742	rimsky	288	static void vport_redraw(viewport_t *vport)
1485	palkovsky	289	{
3745	rimsky	290	unsigned int row, col;
		291
3742	rimsky	292	for (row = 0; row < vport->rows; row++) {
3745	rimsky	293	for (col = 0; col < vport->cols; col++) {
		294	draw_vp_glyph(vport, false, col, row);
3742	rimsky	295	}
1672	palkovsky	296	}
3745	rimsky	297
3742	rimsky	298	if (COL2X(vport->cols) < vport->width) {
3745	rimsky	299	draw_filled_rect(
		300	vport->x + COL2X(vport->cols), vport->y,
		301	vport->x + vport->width, vport->y + vport->height,
		302	vport->style.bg_color);
1672	palkovsky	303	}
3745	rimsky	304
3742	rimsky	305	if (ROW2Y(vport->rows) < vport->height) {
3745	rimsky	306	draw_filled_rect(
		307	vport->x, vport->y + ROW2Y(vport->rows),
		308	vport->x + vport->width, vport->y + vport->height,
		309	vport->style.bg_color);
1672	palkovsky	310	}
1559	palkovsky	311	}
		312
3742	rimsky	313
3745	rimsky	314	/** Clear viewport.
3742	rimsky	315	*
		316	* @param vport Viewport to clear
		317	*
		318	*/
		319	static void vport_clear(viewport_t *vport)
1363	vana	320	{
3742	rimsky	321	memset(vport->backbuf, 0, vport->bbsize);
		322	vport_redraw(vport);
1363	vana	323	}
		324
3745	rimsky	325	/** Scroll viewport by the specified number of lines.
1485	palkovsky	326	*
1709	jermar	327	* @param vport Viewport to scroll
3742	rimsky	328	* @param lines Number of lines to scroll
		329	*
1485	palkovsky	330	*/
3742	rimsky	331	static void vport_scroll(viewport_t *vport, int lines)
1363	vana	332	{
3745	rimsky	333	unsigned int row, col;
		334	unsigned int x, y;
		335	uint8_t glyph;
		336
		337	/*
		338	* Redraw.
		339	*/
		340
		341	y = vport->y;
3742	rimsky	342	for (row = 0; row < vport->rows; row++) {
3745	rimsky	343	x = vport->x;
		344	for (col = 0; col < vport->cols; col++) {
		345	if ((row + lines >= 0) && (row + lines < vport->rows)) {
		346	glyph = vport->backbuf[BB_POS(vport, col, row + lines)];
		347
		348	if (vport->backbuf[BB_POS(vport, col, row)] == glyph) {
		349	x += FONT_WIDTH;
		350	continue;
		351	}
		352	} else {
		353	glyph = 0;
3742	rimsky	354	}
3745	rimsky	355
		356	(*vport->dglyph)(x, y, false, vport->glyphs, glyph,
		357	vport->style.fg_color, vport->style.bg_color);
		358	x += FONT_WIDTH;
3742	rimsky	359	}
3745	rimsky	360	y += FONT_SCANLINES;
1485	palkovsky	361	}
3745	rimsky	362
		363	/*
		364	* Scroll backbuffer.
		365	*/
		366
1672	palkovsky	367	if (lines > 0) {
3745	rimsky	368	memmove(vport->backbuf, vport->backbuf + vport->cols * lines,
		369	vport->cols * (vport->rows - lines));
		370	memset(&vport->backbuf[BB_POS(vport, 0, vport->rows - lines)],
		371	0, vport->cols * lines);
3742	rimsky	372	} else {
3745	rimsky	373	memmove(vport->backbuf - vport->cols * lines, vport->backbuf,
		374	vport->cols * (vport->rows + lines));
3742	rimsky	375	memset(vport->backbuf, 0, - vport->cols * lines);
1672	palkovsky	376	}
		377	}
		378
3742	rimsky	379	/** Render glyphs
1558	palkovsky	380	*
3742	rimsky	381	* Convert glyphs from device independent font
		382	* description to current visual representation.
		383	*
		384	* @param vport Viewport
		385	*
1558	palkovsky	386	*/
3742	rimsky	387	static void render_glyphs(viewport_t* vport)
1363	vana	388	{
3742	rimsky	389	unsigned int glyph;
		390
		391	for (glyph = 0; glyph < FONT_GLYPHS; glyph++) {
		392	unsigned int y;
		393
		394	for (y = 0; y < FONT_SCANLINES; y++) {
		395	unsigned int x;
		396
		397	for (x = 0; x < FONT_WIDTH; x++) {
		398	screen.rgb_conv(&vport->glyphs[GLYPH_POS(glyph, y, false) + x * screen.pixelbytes],
		399	(fb_font[glyph * FONT_SCANLINES + y] & (1 << (7 - x)))
3745	rimsky	400	? 0xffffff : 0x000000);
3742	rimsky	401
3745	rimsky	402	screen.rgb_conv(&vport->glyphs[GLYPH_POS(glyph, y, true) + x * screen.pixelbytes],
		403	(fb_font[glyph * FONT_SCANLINES + y] & (1 << (7 - x)))
		404	? 0x000000 : 0xffffff);
3742	rimsky	405	}
1509	palkovsky	406	}
		407	}
3742	rimsky	408
		409	screen.rgb_conv(vport->bgpixel, vport->style.bg_color);
1363	vana	410	}
		411
		412
1485	palkovsky	413	/** Create new viewport
1363	vana	414	*
3742	rimsky	415	* @param x Origin of the viewport (x).
		416	* @param y Origin of the viewport (y).
		417	* @param width Width of the viewport.
		418	* @param height Height of the viewport.
		419	*
		420	* @return New viewport number.
		421	*
1363	vana	422	*/
3742	rimsky	423	static int vport_create(unsigned int x, unsigned int y,
		424	unsigned int width, unsigned int height)
1363	vana	425	{
3742	rimsky	426	unsigned int i;
		427
2070	jermar	428	for (i = 0; i < MAX_VIEWPORTS; i++) {
1485	palkovsky	429	if (!viewports[i].initialized)
1363	vana	430	break;
		431	}
1485	palkovsky	432	if (i == MAX_VIEWPORTS)
		433	return ELIMIT;
3742	rimsky	434
		435	unsigned int cols = width / FONT_WIDTH;
		436	unsigned int rows = height / FONT_SCANLINES;
		437	unsigned int bbsize = cols * rows;
		438	unsigned int glyphsize = 2 * FONT_GLYPHS * screen.glyphbytes;
3745	rimsky	439	unsigned int word_size = sizeof(unsigned long);
3742	rimsky	440
		441	uint8_t backbuf = (uint8_t ) malloc(bbsize);
		442	if (!backbuf)
		443	return ENOMEM;
		444
		445	uint8_t glyphs = (uint8_t ) malloc(glyphsize);
		446	if (!glyphs) {
		447	free(backbuf);
		448	return ENOMEM;
		449	}
		450
		451	uint8_t bgpixel = (uint8_t ) malloc(screen.pixelbytes);
		452	if (!bgpixel) {
		453	free(glyphs);
		454	free(backbuf);
		455	return ENOMEM;
		456	}
		457
		458	memset(backbuf, 0, bbsize);
		459	memset(glyphs, 0, glyphsize);
		460	memset(bgpixel, 0, screen.pixelbytes);
		461
1485	palkovsky	462	viewports[i].x = x;
		463	viewports[i].y = y;
		464	viewports[i].width = width;
		465	viewports[i].height = height;
1363	vana	466
3742	rimsky	467	viewports[i].cols = cols;
		468	viewports[i].rows = rows;
		469
1509	palkovsky	470	viewports[i].style.bg_color = DEFAULT_BGCOLOR;
		471	viewports[i].style.fg_color = DEFAULT_FGCOLOR;
1363	vana	472
3742	rimsky	473	viewports[i].glyphs = glyphs;
		474	viewports[i].bgpixel = bgpixel;
3745	rimsky	475
		476	/*
		477	* Conditions necessary to select aligned version:
		478	*
		479	* - word size is divisible by pixelbytes
		480	* - cell scanline size is divisible by word size
		481	* - cell scanlines are word-aligned
		482	*/
		483	if ((word_size % screen.pixelbytes) == 0 &&
		484	(FONT_WIDTH * screen.pixelbytes) % word_size == 0 &&
		485	(x * screen.pixelbytes) % word_size == 0 &&
		486	screen.scanline % word_size == 0) {
		487
		488	viewports[i].dglyph = draw_glyph_aligned;
		489	} else {
		490	viewports[i].dglyph = draw_glyph_fallback;
		491	}
		492
1489	palkovsky	493	viewports[i].cur_col = 0;
		494	viewports[i].cur_row = 0;
3742	rimsky	495	viewports[i].cursor_active = false;
		496	viewports[i].cursor_shown = false;
		497
		498	viewports[i].bbsize = bbsize;
		499	viewports[i].backbuf = backbuf;
		500
		501	viewports[i].initialized = true;
		502
		503	render_glyphs(&viewports[i]);
		504
1485	palkovsky	505	return i;
1363	vana	506	}
		507
3742	rimsky	508
1363	vana	509	/** Initialize framebuffer as a chardev output device
		510	*
3742	rimsky	511	* @param addr Address of the framebuffer
		512	* @param xres Screen width in pixels
		513	* @param yres Screen height in pixels
		514	* @param visual Bits per pixel (8, 16, 24, 32)
		515	* @param scan Bytes per one scanline
1363	vana	516	*
		517	*/
3742	rimsky	518	static bool screen_init(void *addr, unsigned int xres, unsigned int yres,
		519	unsigned int scan, unsigned int visual)
1363	vana	520	{
1993	decky	521	switch (visual) {
		522	case VISUAL_INDIRECT_8:
3742	rimsky	523	screen.rgb_conv = rgb_323;
1886	jermar	524	screen.pixelbytes = 1;
		525	break;
1993	decky	526	case VISUAL_RGB_5_5_5:
3742	rimsky	527	screen.rgb_conv = rgb_555;
1886	jermar	528	screen.pixelbytes = 2;
		529	break;
1993	decky	530	case VISUAL_RGB_5_6_5:
3742	rimsky	531	screen.rgb_conv = rgb_565;
1993	decky	532	screen.pixelbytes = 2;
1886	jermar	533	break;
1993	decky	534	case VISUAL_RGB_8_8_8:
3742	rimsky	535	screen.rgb_conv = rgb_888;
1993	decky	536	screen.pixelbytes = 3;
		537	break;
		538	case VISUAL_RGB_8_8_8_0:
3742	rimsky	539	screen.rgb_conv = rgb_888;
1886	jermar	540	screen.pixelbytes = 4;
		541	break;
1993	decky	542	case VISUAL_RGB_0_8_8_8:
3742	rimsky	543	screen.rgb_conv = rgb_0888;
1993	decky	544	screen.pixelbytes = 4;
		545	break;
1994	decky	546	case VISUAL_BGR_0_8_8_8:
3742	rimsky	547	screen.rgb_conv = bgr_0888;
1994	decky	548	screen.pixelbytes = 4;
		549	break;
1993	decky	550	default:
		551	return false;
1363	vana	552	}
		553
3742	rimsky	554	screen.fb_addr = (unsigned char *) addr;
1485	palkovsky	555	screen.xres = xres;
		556	screen.yres = yres;
		557	screen.scanline = scan;
1363	vana	558
3742	rimsky	559	screen.glyphscanline = FONT_WIDTH * screen.pixelbytes;
		560	screen.glyphbytes = screen.glyphscanline * FONT_SCANLINES;
		561
1485	palkovsky	562	/* Create first viewport */
3742	rimsky	563	vport_create(0, 0, xres, yres);
1993	decky	564
		565	return true;
1485	palkovsky	566	}
1363	vana	567
3742	rimsky	568
3745	rimsky	569	/** Draw a glyph, takes advantage of alignment.
3742	rimsky	570	*
3745	rimsky	571	* This version can only be used if the following conditions are met:
		572	*
		573	* - word size is divisible by pixelbytes
		574	* - cell scanline size is divisible by word size
		575	* - cell scanlines are word-aligned
		576	*
		577	* It makes use of the pre-rendered mask to process (possibly) several
		578	* pixels at once (word size / pixelbytes pixels at a time are processed)
		579	* making it very fast. Most notably this version is not applicable at 24 bits
		580	* per pixel.
		581	*
		582	* @param x x coordinate of top-left corner on screen.
		583	* @param y y coordinate of top-left corner on screen.
		584	* @param cursor Draw glyph with cursor
		585	* @param glyphs Pointer to font bitmap.
		586	* @param glyph Code of the glyph to draw.
		587	* @param fg_color Foreground color.
		588	* @param bg_color Backgroudn color.
		589	*/
		590	static void draw_glyph_aligned(unsigned int x, unsigned int y, bool cursor,
		591	uint8_t *glyphs, uint8_t glyph, uint32_t fg_color, uint32_t bg_color)
		592	{
		593	unsigned int i, yd;
		594	unsigned long fg_buf, bg_buf;
		595	unsigned long maskp, dp;
		596	unsigned long mask;
		597	unsigned int ww, d_add;
		598
		599	/*
		600	* Prepare a pair of words, one filled with foreground-color
		601	* pattern and the other filled with background-color pattern.
		602	*/
		603	for (i = 0; i < sizeof(unsigned long) / screen.pixelbytes; i++) {
		604	screen.rgb_conv(&((uint8_t )&fg_buf)[i screen.pixelbytes],
		605	fg_color);
		606	screen.rgb_conv(&((uint8_t )&bg_buf)[i screen.pixelbytes],
		607	bg_color);
		608	}
		609
		610
		611	/* Pointer to the current position in the mask. */
		612	maskp = (unsigned long *) &glyphs[GLYPH_POS(glyph, 0, cursor)];
		613
		614	/* Pointer to the current position on the screen. */
		615	dp = (unsigned long *) &screen.fb_addr[FB_POS(x, y)];
		616
		617	/* Width of the character cell in words. */
		618	ww = FONT_WIDTH * screen.pixelbytes / sizeof(unsigned long);
		619
		620	/* Offset to add when moving to another screen scanline. */
		621	d_add = screen.scanline - FONT_WIDTH * screen.pixelbytes;
		622
		623	for (yd = 0; yd < FONT_SCANLINES; yd++) {
		624	/*
		625	* Now process the cell scanline, combining foreground
		626	* and background color patters using the pre-rendered mask.
		627	*/
		628	for (i = 0; i < ww; i++) {
		629	mask = *maskp++;
		630	*dp++ = (fg_buf & mask) \| (bg_buf & ~mask);
		631	}
		632
		633	/* Move to the beginning of the next scanline of the cell. */
		634	dp = (unsigned long ) ((uint8_t ) dp + d_add);
		635	}
		636	}
		637
		638	/** Draw a glyph, fallback version.
		639	*
		640	* This version does not make use of the pre-rendered mask, it uses
		641	* the font bitmap directly. It works always, but it is slower.
		642	*
		643	* @param x x coordinate of top-left corner on screen.
		644	* @param y y coordinate of top-left corner on screen.
		645	* @param cursor Draw glyph with cursor
		646	* @param glyphs Pointer to font bitmap.
		647	* @param glyph Code of the glyph to draw.
		648	* @param fg_color Foreground color.
		649	* @param bg_color Backgroudn color.
		650	*/
		651	void draw_glyph_fallback(unsigned int x, unsigned int y, bool cursor,
		652	uint8_t *glyphs, uint8_t glyph, uint32_t fg_color, uint32_t bg_color)
		653	{
		654	unsigned int i, j, yd;
		655	uint8_t fg_buf[4], bg_buf[4];
		656	uint8_t dp, sp;
		657	unsigned int d_add;
		658	uint8_t b;
		659
		660	/* Pre-render 1x the foreground and background color pixels. */
		661	if (cursor) {
		662	screen.rgb_conv(fg_buf, bg_color);
		663	screen.rgb_conv(bg_buf, fg_color);
		664	} else {
		665	screen.rgb_conv(fg_buf, fg_color);
		666	screen.rgb_conv(bg_buf, bg_color);
		667	}
		668
		669	/* Pointer to the current position on the screen. */
		670	dp = (uint8_t *) &screen.fb_addr[FB_POS(x, y)];
		671
		672	/* Offset to add when moving to another screen scanline. */
		673	d_add = screen.scanline - FONT_WIDTH * screen.pixelbytes;
		674
		675	for (yd = 0; yd < FONT_SCANLINES; yd++) {
		676	/* Byte containing bits of the glyph scanline. */
		677	b = fb_font[glyph * FONT_SCANLINES + yd];
		678
		679	for (i = 0; i < FONT_WIDTH; i++) {
		680	/* Choose color based on the current bit. */
		681	sp = (b & 0x80) ? fg_buf : bg_buf;
		682
		683	/* Copy the pixel. */
		684	for (j = 0; j < screen.pixelbytes; j++) {
		685	dp++ = sp++;
		686	}
		687
		688	/* Move to the next bit. */
		689	b = b << 1;
		690	}
		691
		692	/* Move to the beginning of the next scanline of the cell. */
		693	dp += d_add;
		694	}
		695	}
		696
		697	/** Draw glyph at specified position in viewport.
		698	*
3742	rimsky	699	* @param vport Viewport identification
		700	* @param cursor Draw glyph with cursor
		701	* @param col Screen position relative to viewport
		702	* @param row Screen position relative to viewport
		703	*
		704	*/
3745	rimsky	705	static void draw_vp_glyph(viewport_t *vport, bool cursor, unsigned int col,
		706	unsigned int row)
1500	palkovsky	707	{
3742	rimsky	708	unsigned int x = vport->x + COL2X(col);
		709	unsigned int y = vport->y + ROW2Y(row);
3745	rimsky	710	uint8_t glyph;
3742	rimsky	711
3745	rimsky	712	glyph = vport->backbuf[BB_POS(vport, col, row)];
		713
		714	(*vport->dglyph)(x, y, cursor, vport->glyphs, glyph,
		715	vport->style.fg_color, vport->style.bg_color);
3742	rimsky	716	}
		717
		718	/** Hide cursor if it is shown
		719	*
		720	*/
		721	static void cursor_hide(viewport_t *vport)
		722	{
		723	if ((vport->cursor_active) && (vport->cursor_shown)) {
3745	rimsky	724	draw_vp_glyph(vport, false, vport->cur_col, vport->cur_row);
3742	rimsky	725	vport->cursor_shown = false;
1500	palkovsky	726	}
		727	}
		728
3742	rimsky	729
		730	/** Show cursor if cursor showing is enabled
		731	*
		732	*/
		733	static void cursor_show(viewport_t *vport)
1500	palkovsky	734	{
		735	/* Do not check for cursor_shown */
		736	if (vport->cursor_active) {
3745	rimsky	737	draw_vp_glyph(vport, true, vport->cur_col, vport->cur_row);
3742	rimsky	738	vport->cursor_shown = true;
1500	palkovsky	739	}
		740	}
		741
3742	rimsky	742
		743	/** Invert cursor, if it is enabled
		744	*
		745	*/
		746	static void cursor_blink(viewport_t *vport)
1500	palkovsky	747	{
		748	if (vport->cursor_shown)
1673	palkovsky	749	cursor_hide(vport);
1500	palkovsky	750	else
3742	rimsky	751	cursor_show(vport);
1500	palkovsky	752	}
		753
3742	rimsky	754
		755	/** Draw character at given position relative to viewport
		756	*
		757	* @param vport Viewport identification
		758	* @param c Character to draw
		759	* @param col Screen position relative to viewport
		760	* @param row Screen position relative to viewport
		761	*
1498	palkovsky	762	*/
3742	rimsky	763	static void draw_char(viewport_t *vport, uint8_t c, unsigned int col, unsigned int row)
1486	palkovsky	764	{
3742	rimsky	765	/* Do not hide cursor if we are going to overwrite it */
		766	if ((vport->cursor_active) && (vport->cursor_shown) &&
		767	((vport->cur_col != col) \|\| (vport->cur_row != row)))
		768	cursor_hide(vport);
1486	palkovsky	769
3742	rimsky	770	vport->backbuf[BB_POS(vport, col, row)] = c;
3745	rimsky	771	draw_vp_glyph(vport, false, col, row);
3742	rimsky	772
1489	palkovsky	773	vport->cur_col = col;
		774	vport->cur_row = row;
3742	rimsky	775
1489	palkovsky	776	vport->cur_col++;
2025	jermar	777	if (vport->cur_col >= vport->cols) {
1489	palkovsky	778	vport->cur_col = 0;
		779	vport->cur_row++;
		780	if (vport->cur_row >= vport->rows)
		781	vport->cur_row--;
1486	palkovsky	782	}
3742	rimsky	783
		784	cursor_show(vport);
1486	palkovsky	785	}
		786
3742	rimsky	787
1552	palkovsky	788	/** Draw text data to viewport
		789	*
1709	jermar	790	* @param vport Viewport id
3742	rimsky	791	* @param data Text data fitting exactly into viewport
		792	*
1552	palkovsky	793	*/
3742	rimsky	794	static void draw_text_data(viewport_t vport, keyfield_t data)
1505	palkovsky	795	{
3742	rimsky	796	unsigned int i;
		797
2025	jermar	798	for (i = 0; i < vport->cols * vport->rows; i++) {
3742	rimsky	799	unsigned int col = i % vport->cols;
		800	unsigned int row = i / vport->cols;
		801
		802	uint8_t glyph = vport->backbuf[BB_POS(vport, col, row)];
		803
		804	// TODO: use data[i].style
		805
		806	if (glyph != data[i].character) {
		807	vport->backbuf[BB_POS(vport, col, row)] = data[i].character;
3745	rimsky	808	draw_vp_glyph(vport, false, col, row);
3742	rimsky	809	}
1505	palkovsky	810	}
3742	rimsky	811	cursor_show(vport);
1505	palkovsky	812	}
		813
3742	rimsky	814
		815	static void putpixel_pixmap(void *data, unsigned int x, unsigned int y, uint32_t color)
1555	palkovsky	816	{
3742	rimsky	817	int pm = ((int ) data);
		818	pixmap_t *pmap = &pixmaps[pm];
		819	unsigned int pos = (y * pmap->width + x) * screen.pixelbytes;
1555	palkovsky	820
3742	rimsky	821	screen.rgb_conv(&pmap->data[pos], color);
		822	}
		823
		824
		825	static void putpixel(void *data, unsigned int x, unsigned int y, uint32_t color)
		826	{
		827	viewport_t vport = (viewport_t ) data;
		828	unsigned int dx = vport->x + x;
		829	unsigned int dy = vport->y + y;
		830
		831	screen.rgb_conv(&screen.fb_addr[FB_POS(dx, dy)], color);
		832	}
		833
		834
		835	/** Return first free pixmap
		836	*
		837	*/
		838	static int find_free_pixmap(void)
		839	{
		840	unsigned int i;
		841
		842	for (i = 0; i < MAX_PIXMAPS; i++)
1555	palkovsky	843	if (!pixmaps[i].data)
		844	return i;
3742	rimsky	845
1555	palkovsky	846	return -1;
		847	}
		848
		849
3742	rimsky	850	/** Create a new pixmap and return appropriate ID
		851	*
		852	*/
		853	static int shm2pixmap(unsigned char *shm, size_t size)
1555	palkovsky	854	{
		855	int pm;
		856	pixmap_t *pmap;
3742	rimsky	857
1555	palkovsky	858	pm = find_free_pixmap();
		859	if (pm == -1)
		860	return ELIMIT;
3742	rimsky	861
1555	palkovsky	862	pmap = &pixmaps[pm];
		863
		864	if (ppm_get_data(shm, size, &pmap->width, &pmap->height))
		865	return EINVAL;
		866
		867	pmap->data = malloc(pmap->width * pmap->height * screen.pixelbytes);
		868	if (!pmap->data)
		869	return ENOMEM;
3742	rimsky	870
		871	ppm_draw(shm, size, 0, 0, pmap->width, pmap->height, putpixel_pixmap, (void *) &pm);
		872
1555	palkovsky	873	return pm;
		874	}
		875
3742	rimsky	876
1552	palkovsky	877	/** Handle shared memory communication calls
		878	*
		879	* Protocol for drawing pixmaps:
		880	* - FB_PREPARE_SHM(client shm identification)
2025	jermar	881	* - IPC_M_AS_AREA_SEND
3742	rimsky	882	* - FB_DRAW_PPM(startx, starty)
1552	palkovsky	883	* - FB_DROP_SHM
		884	*
		885	* Protocol for text drawing
2025	jermar	886	* - IPC_M_AS_AREA_SEND
1552	palkovsky	887	* - FB_DRAW_TEXT_DATA
		888	*
		889	* @param callid Callid of the current call
3742	rimsky	890	* @param call Current call data
		891	* @param vp Active viewport
1552	palkovsky	892	*
3742	rimsky	893	* @return false if the call was not handled byt this function, true otherwise
		894	*
		895	* Note: this function is not threads safe, you would have
1552	palkovsky	896	* to redefine static variables with __thread
3742	rimsky	897	*
1552	palkovsky	898	*/
3742	rimsky	899	static bool shm_handle(ipc_callid_t callid, ipc_call_t *call, int vp)
1547	palkovsky	900	{
		901	static keyfield_t *interbuffer = NULL;
		902	static size_t intersize = 0;
3742	rimsky	903
1720	palkovsky	904	static unsigned char *shm = NULL;
1555	palkovsky	905	static ipcarg_t shm_id = 0;
		906	static size_t shm_size;
3742	rimsky	907
		908	bool handled = true;
		909	int retval = EOK;
1547	palkovsky	910	viewport_t *vport = &viewports[vp];
3742	rimsky	911	unsigned int x;
		912	unsigned int y;
		913
1547	palkovsky	914	switch (IPC_GET_METHOD(*call)) {
2677	jermar	915	case IPC_M_SHARE_OUT:
1547	palkovsky	916	/* We accept one area for data interchange */
1555	palkovsky	917	if (IPC_GET_ARG1(*call) == shm_id) {
2141	jermar	918	void dest = as_get_mappable_page(IPC_GET_ARG2(call));
1555	palkovsky	919	shm_size = IPC_GET_ARG2(*call);
3742	rimsky	920	if (!ipc_answer_1(callid, EOK, (sysarg_t) dest))
1555	palkovsky	921	shm = dest;
1547	palkovsky	922	else
1555	palkovsky	923	shm_id = 0;
3742	rimsky	924
1555	palkovsky	925	if (shm[0] != 'P')
3742	rimsky	926	return false;
		927
		928	return true;
1547	palkovsky	929	} else {
		930	intersize = IPC_GET_ARG2(*call);
2015	jermar	931	receive_comm_area(callid, call, (void *) &interbuffer);
1547	palkovsky	932	}
3742	rimsky	933	return true;
1547	palkovsky	934	case FB_PREPARE_SHM:
1555	palkovsky	935	if (shm_id)
1547	palkovsky	936	retval = EBUSY;
		937	else
1555	palkovsky	938	shm_id = IPC_GET_ARG1(*call);
1547	palkovsky	939	break;
		940
		941	case FB_DROP_SHM:
1555	palkovsky	942	if (shm) {
		943	as_area_destroy(shm);
		944	shm = NULL;
1547	palkovsky	945	}
1555	palkovsky	946	shm_id = 0;
1547	palkovsky	947	break;
3742	rimsky	948
1555	palkovsky	949	case FB_SHM2PIXMAP:
		950	if (!shm) {
		951	retval = EINVAL;
		952	break;
		953	}
		954	retval = shm2pixmap(shm, shm_size);
		955	break;
1547	palkovsky	956	case FB_DRAW_PPM:
1555	palkovsky	957	if (!shm) {
1547	palkovsky	958	retval = EINVAL;
		959	break;
		960	}
		961	x = IPC_GET_ARG1(*call);
		962	y = IPC_GET_ARG2(*call);
3742	rimsky	963
		964	if ((x > vport->width) \|\| (y > vport->height)) {
1547	palkovsky	965	retval = EINVAL;
		966	break;
		967	}
		968
2025	jermar	969	ppm_draw(shm, shm_size, IPC_GET_ARG1(*call),
3742	rimsky	970	IPC_GET_ARG2(call), vport->width - x, vport->height - y, putpixel, (void ) vport);
1547	palkovsky	971	break;
		972	case FB_DRAW_TEXT_DATA:
		973	if (!interbuffer) {
		974	retval = EINVAL;
		975	break;
		976	}
3742	rimsky	977	if (intersize < vport->cols * vport->rows * sizeof(*interbuffer)) {
1547	palkovsky	978	retval = EINVAL;
		979	break;
		980	}
1673	palkovsky	981	draw_text_data(vport, interbuffer);
1547	palkovsky	982	break;
		983	default:
3742	rimsky	984	handled = false;
1547	palkovsky	985	}
		986
		987	if (handled)
2619	jermar	988	ipc_answer_0(callid, retval);
1547	palkovsky	989	return handled;
		990	}
		991
3742	rimsky	992
		993	static void copy_vp_to_pixmap(viewport_t vport, pixmap_t pmap)
1552	palkovsky	994	{
3742	rimsky	995	unsigned int width = vport->width;
		996	unsigned int height = vport->height;
		997
1711	palkovsky	998	if (width + vport->x > screen.xres)
		999	width = screen.xres - vport->x;
2301	decky	1000	if (height + vport->y > screen.yres)
1711	palkovsky	1001	height = screen.yres - vport->y;
2301	decky	1002
3742	rimsky	1003	unsigned int realwidth = pmap->width <= width ? pmap->width : width;
		1004	unsigned int realheight = pmap->height <= height ? pmap->height : height;
2301	decky	1005
3742	rimsky	1006	unsigned int srcrowsize = vport->width * screen.pixelbytes;
		1007	unsigned int realrowsize = realwidth * screen.pixelbytes;
		1008
		1009	unsigned int y;
2301	decky	1010	for (y = 0; y < realheight; y++) {
3742	rimsky	1011	unsigned int tmp = (vport->y + y) * screen.scanline + vport->x * screen.pixelbytes;
		1012	memcpy(pmap->data + srcrowsize * y, screen.fb_addr + tmp, realrowsize);
1711	palkovsky	1013	}
		1014	}
		1015
3742	rimsky	1016
		1017	/** Save viewport to pixmap
		1018	*
		1019	*/
		1020	static int save_vp_to_pixmap(viewport_t *vport)
1711	palkovsky	1021	{
		1022	int pm;
		1023	pixmap_t *pmap;
3742	rimsky	1024
1552	palkovsky	1025	pm = find_free_pixmap();
		1026	if (pm == -1)
		1027	return ELIMIT;
		1028
		1029	pmap = &pixmaps[pm];
		1030	pmap->data = malloc(screen.pixelbytes * vport->width * vport->height);
		1031	if (!pmap->data)
		1032	return ENOMEM;
3742	rimsky	1033
1552	palkovsky	1034	pmap->width = vport->width;
		1035	pmap->height = vport->height;
3742	rimsky	1036
1711	palkovsky	1037	copy_vp_to_pixmap(vport, pmap);
1552	palkovsky	1038
		1039	return pm;
		1040	}
		1041
3742	rimsky	1042
1552	palkovsky	1043	/** Draw pixmap on screen
		1044	*
		1045	* @param vp Viewport to draw on
		1046	* @param pm Pixmap identifier
3742	rimsky	1047	*
1552	palkovsky	1048	*/
		1049	static int draw_pixmap(int vp, int pm)
		1050	{
		1051	pixmap_t *pmap = &pixmaps[pm];
		1052	viewport_t *vport = &viewports[vp];
3742	rimsky	1053
		1054	unsigned int width = vport->width;
		1055	unsigned int height = vport->height;
		1056
1711	palkovsky	1057	if (width + vport->x > screen.xres)
		1058	width = screen.xres - vport->x;
		1059	if (height + vport->y > screen.yres)
		1060	height = screen.yres - vport->y;
3742	rimsky	1061
1552	palkovsky	1062	if (!pmap->data)
		1063	return EINVAL;
3742	rimsky	1064
		1065	unsigned int realwidth = pmap->width <= width ? pmap->width : width;
		1066	unsigned int realheight = pmap->height <= height ? pmap->height : height;
		1067
		1068	unsigned int srcrowsize = vport->width * screen.pixelbytes;
		1069	unsigned int realrowsize = realwidth * screen.pixelbytes;
		1070
		1071	unsigned int y;
2070	jermar	1072	for (y = 0; y < realheight; y++) {
3742	rimsky	1073	unsigned int tmp = (vport->y + y) * screen.scanline + vport->x * screen.pixelbytes;
		1074	memcpy(screen.fb_addr + tmp, pmap->data + y * srcrowsize, realrowsize);
1552	palkovsky	1075	}
3742	rimsky	1076
		1077	return EOK;
1552	palkovsky	1078	}
		1079
3742	rimsky	1080
		1081	/** Tick animation one step forward
		1082	*
		1083	*/
		1084	static void anims_tick(void)
1646	palkovsky	1085	{
3742	rimsky	1086	unsigned int i;
1646	palkovsky	1087	static int counts = 0;
		1088
		1089	/* Limit redrawing */
2025	jermar	1090	counts = (counts + 1) % 8;
1646	palkovsky	1091	if (counts)
		1092	return;
		1093
2070	jermar	1094	for (i = 0; i < MAX_ANIMATIONS; i++) {
3742	rimsky	1095	if ((!animations[i].animlen) \|\| (!animations[i].initialized) \|\|
		1096	(!animations[i].enabled))
1646	palkovsky	1097	continue;
3742	rimsky	1098
		1099	draw_pixmap(animations[i].vp, animations[i].pixmaps[animations[i].pos]);
		1100	animations[i].pos = (animations[i].pos + 1) % animations[i].animlen;
1646	palkovsky	1101	}
		1102	}
		1103
1711	palkovsky	1104
3742	rimsky	1105	static unsigned int pointer_x;
		1106	static unsigned int pointer_y;
		1107	static bool pointer_shown, pointer_enabled;
1711	palkovsky	1108	static int pointer_vport = -1;
		1109	static int pointer_pixmap = -1;
		1110
3742	rimsky	1111
		1112	static void mouse_show(void)
1711	palkovsky	1113	{
2070	jermar	1114	int i, j;
1711	palkovsky	1115	int visibility;
		1116	int color;
		1117	int bytepos;
3742	rimsky	1118
		1119	if ((pointer_shown) \|\| (!pointer_enabled))
1723	palkovsky	1120	return;
3742	rimsky	1121
3745	rimsky	1122	/* Save image under the pointer. */
1711	palkovsky	1123	if (pointer_vport == -1) {
3742	rimsky	1124	pointer_vport = vport_create(pointer_x, pointer_y, pointer_width, pointer_height);
1711	palkovsky	1125	if (pointer_vport < 0)
		1126	return;
		1127	} else {
		1128	viewports[pointer_vport].x = pointer_x;
		1129	viewports[pointer_vport].y = pointer_y;
		1130	}
3742	rimsky	1131
1711	palkovsky	1132	if (pointer_pixmap == -1)
		1133	pointer_pixmap = save_vp_to_pixmap(&viewports[pointer_vport]);
		1134	else
3742	rimsky	1135	copy_vp_to_pixmap(&viewports[pointer_vport], &pixmaps[pointer_pixmap]);
		1136
3745	rimsky	1137	/* Draw mouse pointer. */
2025	jermar	1138	for (i = 0; i < pointer_height; i++)
		1139	for (j = 0; j < pointer_width; j++) {
		1140	bytepos = i * ((pointer_width - 1) / 8 + 1) + j / 8;
2070	jermar	1141	visibility = pointer_mask_bits[bytepos] &
2619	jermar	1142	(1 << (j % 8));
1711	palkovsky	1143	if (visibility) {
2619	jermar	1144	color = pointer_bits[bytepos] &
		1145	(1 << (j % 8)) ? 0 : 0xffffff;
2025	jermar	1146	if (pointer_x + j < screen.xres && pointer_y +
2619	jermar	1147	i < screen.yres)
2025	jermar	1148	putpixel(&viewports[0], pointer_x + j,
2619	jermar	1149	pointer_y + i, color);
1711	palkovsky	1150	}
		1151	}
		1152	pointer_shown = 1;
		1153	}
		1154
3742	rimsky	1155
		1156	static void mouse_hide(void)
1711	palkovsky	1157	{
3745	rimsky	1158	/* Restore image under the pointer. */
1711	palkovsky	1159	if (pointer_shown) {
		1160	draw_pixmap(pointer_vport, pointer_pixmap);
		1161	pointer_shown = 0;
		1162	}
		1163	}
		1164
3742	rimsky	1165
		1166	static void mouse_move(unsigned int x, unsigned int y)
1711	palkovsky	1167	{
		1168	mouse_hide();
		1169	pointer_x = x;
		1170	pointer_y = y;
		1171	mouse_show();
		1172	}
		1173
3742	rimsky	1174
		1175	static int anim_handle(ipc_callid_t callid, ipc_call_t *call, int vp)
1646	palkovsky	1176	{
3742	rimsky	1177	bool handled = true;
		1178	int retval = EOK;
		1179	int i, nvp;
1646	palkovsky	1180	int newval;
3742	rimsky	1181
1646	palkovsky	1182	switch (IPC_GET_METHOD(*call)) {
		1183	case FB_ANIM_CREATE:
		1184	nvp = IPC_GET_ARG1(*call);
		1185	if (nvp == -1)
		1186	nvp = vp;
2025	jermar	1187	if (nvp >= MAX_VIEWPORTS \|\| nvp < 0 \|\|
		1188	!viewports[nvp].initialized) {
1646	palkovsky	1189	retval = EINVAL;
		1190	break;
		1191	}
2025	jermar	1192	for (i = 0; i < MAX_ANIMATIONS; i++) {
		1193	if (!animations[i].initialized)
1646	palkovsky	1194	break;
		1195	}
		1196	if (i == MAX_ANIMATIONS) {
		1197	retval = ELIMIT;
		1198	break;
		1199	}
		1200	animations[i].initialized = 1;
		1201	animations[i].animlen = 0;
		1202	animations[i].pos = 0;
		1203	animations[i].enabled = 0;
		1204	animations[i].vp = nvp;
		1205	retval = i;
		1206	break;
		1207	case FB_ANIM_DROP:
		1208	i = IPC_GET_ARG1(*call);
1720	palkovsky	1209	if (i >= MAX_ANIMATIONS \|\| i < 0) {
1646	palkovsky	1210	retval = EINVAL;
		1211	break;
		1212	}
		1213	animations[i].initialized = 0;
		1214	break;
		1215	case FB_ANIM_ADDPIXMAP:
		1216	i = IPC_GET_ARG1(*call);
2025	jermar	1217	if (i >= MAX_ANIMATIONS \|\| i < 0 \|\|
		1218	!animations[i].initialized) {
1646	palkovsky	1219	retval = EINVAL;
		1220	break;
		1221	}
		1222	if (animations[i].animlen == MAX_ANIM_LEN) {
		1223	retval = ELIMIT;
		1224	break;
		1225	}
		1226	newval = IPC_GET_ARG2(*call);
2025	jermar	1227	if (newval < 0 \|\| newval > MAX_PIXMAPS \|\|
		1228	!pixmaps[newval].data) {
1646	palkovsky	1229	retval = EINVAL;
		1230	break;
		1231	}
		1232	animations[i].pixmaps[animations[i].animlen++] = newval;
		1233	break;
		1234	case FB_ANIM_CHGVP:
		1235	i = IPC_GET_ARG1(*call);
		1236	if (i >= MAX_ANIMATIONS \|\| i < 0) {
		1237	retval = EINVAL;
		1238	break;
		1239	}
		1240	nvp = IPC_GET_ARG2(*call);
		1241	if (nvp == -1)
		1242	nvp = vp;
2025	jermar	1243	if (nvp >= MAX_VIEWPORTS \|\| nvp < 0 \|\|
		1244	!viewports[nvp].initialized) {
1646	palkovsky	1245	retval = EINVAL;
		1246	break;
		1247	}
		1248	animations[i].vp = nvp;
		1249	break;
		1250	case FB_ANIM_START:
		1251	case FB_ANIM_STOP:
		1252	i = IPC_GET_ARG1(*call);
		1253	if (i >= MAX_ANIMATIONS \|\| i < 0) {
		1254	retval = EINVAL;
		1255	break;
		1256	}
		1257	newval = (IPC_GET_METHOD(*call) == FB_ANIM_START);
		1258	if (newval ^ animations[i].enabled) {
		1259	animations[i].enabled = newval;
		1260	anims_enabled += newval ? 1 : -1;
		1261	}
		1262	break;
		1263	default:
		1264	handled = 0;
		1265	}
		1266	if (handled)
2619	jermar	1267	ipc_answer_0(callid, retval);
1646	palkovsky	1268	return handled;
		1269	}
		1270
3742	rimsky	1271
		1272	/** Handler for messages concerning pixmap handling
		1273	*
		1274	*/
		1275	static int pixmap_handle(ipc_callid_t callid, ipc_call_t *call, int vp)
1552	palkovsky	1276	{
3742	rimsky	1277	bool handled = true;
		1278	int retval = EOK;
		1279	int i, nvp;
		1280
1552	palkovsky	1281	switch (IPC_GET_METHOD(*call)) {
		1282	case FB_VP_DRAW_PIXMAP:
		1283	nvp = IPC_GET_ARG1(*call);
		1284	if (nvp == -1)
		1285	nvp = vp;
2025	jermar	1286	if (nvp < 0 \|\| nvp >= MAX_VIEWPORTS \|\|
		1287	!viewports[nvp].initialized) {
1552	palkovsky	1288	retval = EINVAL;
		1289	break;
		1290	}
		1291	i = IPC_GET_ARG2(*call);
		1292	retval = draw_pixmap(nvp, i);
		1293	break;
		1294	case FB_VP2PIXMAP:
		1295	nvp = IPC_GET_ARG1(*call);
		1296	if (nvp == -1)
		1297	nvp = vp;
2025	jermar	1298	if (nvp < 0 \|\| nvp >= MAX_VIEWPORTS \|\|
		1299	!viewports[nvp].initialized)
1552	palkovsky	1300	retval = EINVAL;
		1301	else
1711	palkovsky	1302	retval = save_vp_to_pixmap(&viewports[nvp]);
1552	palkovsky	1303	break;
		1304	case FB_DROP_PIXMAP:
		1305	i = IPC_GET_ARG1(*call);
		1306	if (i >= MAX_PIXMAPS) {
		1307	retval = EINVAL;
		1308	break;
		1309	}
		1310	if (pixmaps[i].data) {
		1311	free(pixmaps[i].data);
		1312	pixmaps[i].data = NULL;
		1313	}
		1314	break;
		1315	default:
		1316	handled = 0;
		1317	}
3742	rimsky	1318
1552	palkovsky	1319	if (handled)
2619	jermar	1320	ipc_answer_0(callid, retval);
1552	palkovsky	1321	return handled;
		1322
		1323	}
		1324
1498	palkovsky	1325	/** Function for handling connections to FB
		1326	*
		1327	*/
3742	rimsky	1328	static void fb_client_connection(ipc_callid_t iid, ipc_call_t *icall)
1363	vana	1329	{
3742	rimsky	1330	unsigned int vp = 0;
		1331	viewport_t *vport = &viewports[vp];
		1332
1485	palkovsky	1333	if (client_connected) {
2619	jermar	1334	ipc_answer_0(iid, ELIMIT);
1485	palkovsky	1335	return;
		1336	}
3742	rimsky	1337
		1338	/* Accept connection */
		1339	client_connected = true;
		1340	ipc_answer_0(iid, EOK);
		1341
		1342	while (true) {
		1343	ipc_callid_t callid;
		1344	ipc_call_t call;
		1345	int retval;
		1346	unsigned int i;
		1347	int scroll;
		1348	uint8_t glyph;
		1349	unsigned int row, col;
		1350
		1351	if ((vport->cursor_active) \|\| (anims_enabled))
2070	jermar	1352	callid = async_get_call_timeout(&call, 250000);
1640	palkovsky	1353	else
		1354	callid = async_get_call(&call);
3742	rimsky	1355
1713	palkovsky	1356	mouse_hide();
1500	palkovsky	1357	if (!callid) {
1673	palkovsky	1358	cursor_blink(vport);
1646	palkovsky	1359	anims_tick();
1723	palkovsky	1360	mouse_show();
1500	palkovsky	1361	continue;
		1362	}
3742	rimsky	1363
1547	palkovsky	1364	if (shm_handle(callid, &call, vp))
		1365	continue;
3742	rimsky	1366
1552	palkovsky	1367	if (pixmap_handle(callid, &call, vp))
		1368	continue;
3742	rimsky	1369
1646	palkovsky	1370	if (anim_handle(callid, &call, vp))
		1371	continue;
3742	rimsky	1372
		1373	switch (IPC_GET_METHOD(call)) {
1485	palkovsky	1374	case IPC_M_PHONE_HUNGUP:
3742	rimsky	1375	client_connected = false;
		1376
		1377	/* Cleanup other viewports */
2025	jermar	1378	for (i = 1; i < MAX_VIEWPORTS; i++)
3742	rimsky	1379	vport->initialized = false;
		1380
		1381	/* Exit thread */
		1382	return;
		1383
1485	palkovsky	1384	case FB_PUTCHAR:
3742	rimsky	1385	glyph = IPC_GET_ARG1(call);
1485	palkovsky	1386	row = IPC_GET_ARG2(call);
		1387	col = IPC_GET_ARG3(call);
3742	rimsky	1388
		1389	if ((col >= vport->cols) \|\| (row >= vport->rows)) {
1485	palkovsky	1390	retval = EINVAL;
		1391	break;
		1392	}
2619	jermar	1393	ipc_answer_0(callid, EOK);
3742	rimsky	1394
		1395	draw_char(vport, glyph, col, row);
		1396
		1397	/* Message already answered */
		1398	continue;
1485	palkovsky	1399	case FB_CLEAR:
3742	rimsky	1400	vport_clear(vport);
		1401	cursor_show(vport);
		1402	retval = EOK;
1485	palkovsky	1403	break;
3742	rimsky	1404	case FB_CURSOR_GOTO:
1486	palkovsky	1405	row = IPC_GET_ARG1(call);
		1406	col = IPC_GET_ARG2(call);
3742	rimsky	1407
		1408	if ((col >= vport->cols) \|\| (row >= vport->rows)) {
1486	palkovsky	1409	retval = EINVAL;
		1410	break;
		1411	}
3742	rimsky	1412	retval = EOK;
		1413
1673	palkovsky	1414	cursor_hide(vport);
1486	palkovsky	1415	vport->cur_col = col;
		1416	vport->cur_row = row;
3742	rimsky	1417	cursor_show(vport);
		1418	break;
1486	palkovsky	1419	case FB_CURSOR_VISIBILITY:
1673	palkovsky	1420	cursor_hide(vport);
1500	palkovsky	1421	vport->cursor_active = IPC_GET_ARG1(call);
3742	rimsky	1422	cursor_show(vport);
		1423	retval = EOK;
1486	palkovsky	1424	break;
1485	palkovsky	1425	case FB_GET_CSIZE:
2619	jermar	1426	ipc_answer_2(callid, EOK, vport->rows, vport->cols);
1485	palkovsky	1427	continue;
1486	palkovsky	1428	case FB_SCROLL:
3742	rimsky	1429	scroll = IPC_GET_ARG1(call);
		1430	if ((scroll > (int) vport->rows) \|\| (scroll < (-(int) vport->rows))) {
1486	palkovsky	1431	retval = EINVAL;
		1432	break;
		1433	}
1673	palkovsky	1434	cursor_hide(vport);
3742	rimsky	1435	vport_scroll(vport, scroll);
		1436	cursor_show(vport);
		1437	retval = EOK;
1486	palkovsky	1438	break;
		1439	case FB_VIEWPORT_SWITCH:
		1440	i = IPC_GET_ARG1(call);
3742	rimsky	1441	if (i >= MAX_VIEWPORTS) {
1486	palkovsky	1442	retval = EINVAL;
		1443	break;
		1444	}
3742	rimsky	1445	if (!viewports[i].initialized) {
1486	palkovsky	1446	retval = EADDRNOTAVAIL;
		1447	break;
		1448	}
1673	palkovsky	1449	cursor_hide(vport);
1486	palkovsky	1450	vp = i;
		1451	vport = &viewports[vp];
3742	rimsky	1452	cursor_show(vport);
		1453	retval = EOK;
1486	palkovsky	1454	break;
		1455	case FB_VIEWPORT_CREATE:
3742	rimsky	1456	retval = vport_create(IPC_GET_ARG1(call) >> 16,
2619	jermar	1457	IPC_GET_ARG1(call) & 0xffff,
		1458	IPC_GET_ARG2(call) >> 16,
		1459	IPC_GET_ARG2(call) & 0xffff);
1486	palkovsky	1460	break;
		1461	case FB_VIEWPORT_DELETE:
		1462	i = IPC_GET_ARG1(call);
3742	rimsky	1463	if (i >= MAX_VIEWPORTS) {
1486	palkovsky	1464	retval = EINVAL;
		1465	break;
		1466	}
3742	rimsky	1467	if (!viewports[i].initialized) {
1486	palkovsky	1468	retval = EADDRNOTAVAIL;
		1469	break;
		1470	}
3742	rimsky	1471	viewports[i].initialized = false;
		1472	if (viewports[i].glyphs)
		1473	free(viewports[i].glyphs);
		1474	if (viewports[i].bgpixel)
		1475	free(viewports[i].bgpixel);
		1476	if (viewports[i].backbuf)
		1477	free(viewports[i].backbuf);
		1478	retval = EOK;
1486	palkovsky	1479	break;
		1480	case FB_SET_STYLE:
1509	palkovsky	1481	vport->style.fg_color = IPC_GET_ARG1(call);
		1482	vport->style.bg_color = IPC_GET_ARG2(call);
3742	rimsky	1483	retval = EOK;
1486	palkovsky	1484	break;
		1485	case FB_GET_RESOLUTION:
2619	jermar	1486	ipc_answer_2(callid, EOK, screen.xres, screen.yres);
1486	palkovsky	1487	continue;
1707	palkovsky	1488	case FB_POINTER_MOVE:
3742	rimsky	1489	pointer_enabled = true;
1711	palkovsky	1490	mouse_move(IPC_GET_ARG1(call), IPC_GET_ARG2(call));
3742	rimsky	1491	retval = EOK;
1707	palkovsky	1492	break;
1485	palkovsky	1493	default:
		1494	retval = ENOENT;
		1495	}
2619	jermar	1496	ipc_answer_0(callid, retval);
1363	vana	1497	}
1485	palkovsky	1498	}
1363	vana	1499
3742	rimsky	1500	/** Initialization of framebuffer
		1501	*
		1502	*/
		1503	int fb_init(void)
1485	palkovsky	1504	{
1490	palkovsky	1505	async_set_client_connection(fb_client_connection);
1485	palkovsky	1506
3742	rimsky	1507	void fb_ph_addr = (void ) sysinfo_value("fb.address.physical");
		1508	unsigned int fb_offset = sysinfo_value("fb.offset");
		1509	unsigned int fb_width = sysinfo_value("fb.width");
		1510	unsigned int fb_height = sysinfo_value("fb.height");
		1511	unsigned int fb_scanline = sysinfo_value("fb.scanline");
		1512	unsigned int fb_visual = sysinfo_value("fb.visual");
		1513
		1514	unsigned int fbsize = fb_scanline * fb_height;
		1515	void *fb_addr = as_get_mappable_page(fbsize);
		1516
		1517	physmem_map(fb_ph_addr + fb_offset, fb_addr,
		1518	ALIGN_UP(fbsize, PAGE_SIZE) >> PAGE_WIDTH, AS_AREA_READ \| AS_AREA_WRITE);
		1519
		1520	if (screen_init(fb_addr, fb_width, fb_height, fb_scanline, fb_visual))
1993	decky	1521	return 0;
		1522
		1523	return -1;
1363	vana	1524	}
1490	palkovsky	1525
3742	rimsky	1526	/**
1649	cejka	1527	* @}
		1528	*/

Subversion Repositories HelenOS

(root)/branches/sparc/uspace/srv/fb/fb.c @ 3835 – Rev 3745