WebSVN – HelenOS – Blame – /branches/rcu/uspace/fb/fb.c

Rev	Author	Line No.	Line
1363	vana	1	/*
2071	jermar	2	* Copyright (c) 2006 Jakub Vana
		3	* Copyright (c) 2006 Ondrej Palkovsky
1363	vana	4	* All rights reserved.
		5	*
		6	* Redistribution and use in source and binary forms, with or without
		7	* modification, are permitted provided that the following conditions
		8	* are met:
		9	*
		10	* - Redistributions of source code must retain the above copyright
		11	* notice, this list of conditions and the following disclaimer.
		12	* - Redistributions in binary form must reproduce the above copyright
		13	* notice, this list of conditions and the following disclaimer in the
		14	* documentation and/or other materials provided with the distribution.
		15	* - The name of the author may not be used to endorse or promote products
		16	* derived from this software without specific prior written permission.
		17	*
		18	* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
		19	* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
		20	* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
		21	* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
		22	* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
		23	* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
		24	* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
		25	* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
		26	* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
		27	* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
		28	*/
		29
1740	jermar	30	/**
		31	* @defgroup fb Graphical framebuffer
		32	* @brief HelenOS graphical framebuffer.
1649	cejka	33	* @ingroup fbs
		34	* @{
		35	*/
1888	jermar	36
1649	cejka	37	/** @file
		38	*/
		39
1430	jermar	40	#include <stdlib.h>
		41	#include <unistd.h>
		42	#include <string.h>
1363	vana	43	#include <ddi.h>
		44	#include <sysinfo.h>
		45	#include <align.h>
		46	#include <as.h>
		47	#include <ipc/fb.h>
		48	#include <ipc/ipc.h>
1430	jermar	49	#include <ipc/ns.h>
1363	vana	50	#include <ipc/services.h>
		51	#include <kernel/errno.h>
1993	decky	52	#include <kernel/genarch/fb/visuals.h>
1392	palkovsky	53	#include <async.h>
1993	decky	54	#include <bool.h>
1505	palkovsky	55
1404	palkovsky	56	#include "font-8x16.h"
1363	vana	57	#include "fb.h"
1505	palkovsky	58	#include "main.h"
		59	#include "../console/screenbuffer.h"
1547	palkovsky	60	#include "ppm.h"
1363	vana	61
1711	palkovsky	62	#include "pointer.xbm"
		63	#include "pointer_mask.xbm"
		64
1630	palkovsky	65	#define DEFAULT_BGCOLOR 0xf0f0f0
		66	#define DEFAULT_FGCOLOR 0x0
1363	vana	67
		68	/***************************************************************/
		69	/* Pixel specific fuctions */
		70
1555	palkovsky	71	typedef void (conv2scr_fn_t)(void , int);
		72	typedef int (conv2rgb_fn_t)(void );
1363	vana	73
1485	palkovsky	74	struct {
1875	jermar	75	uint8_t *fbaddress;
1363	vana	76
1875	jermar	77	unsigned int xres;
		78	unsigned int yres;
		79	unsigned int scanline;
		80	unsigned int pixelbytes;
		81	unsigned int invert_colors;
1363	vana	82
1555	palkovsky	83	conv2scr_fn_t rgb2scr;
		84	conv2rgb_fn_t scr2rgb;
1485	palkovsky	85	} screen;
1363	vana	86
1485	palkovsky	87	typedef struct {
		88	int initialized;
		89	unsigned int x, y;
		90	unsigned int width, height;
1363	vana	91
1485	palkovsky	92	/* Text support in window */
		93	unsigned int rows, cols;
		94	/* Style for text printing */
1509	palkovsky	95	style_t style;
1485	palkovsky	96	/* Auto-cursor position */
1486	palkovsky	97	int cursor_active, cur_col, cur_row;
1500	palkovsky	98	int cursor_shown;
1672	palkovsky	99	/* Double buffering */
1781	jermar	100	uint8_t *dbdata;
1672	palkovsky	101	unsigned int dboffset;
		102	unsigned int paused;
1485	palkovsky	103	} viewport_t;
1363	vana	104
1646	palkovsky	105	#define MAX_ANIM_LEN 8
		106	#define MAX_ANIMATIONS 4
		107	typedef struct {
		108	int initialized;
		109	int enabled;
		110	unsigned int vp;
		111
		112	unsigned int pos;
		113	unsigned int animlen;
		114	unsigned int pixmaps[MAX_ANIM_LEN];
		115	} animation_t;
		116	static animation_t animations[MAX_ANIMATIONS];
		117	static int anims_enabled;
		118
1552	palkovsky	119	/** Maximum number of saved pixmaps
		120	* Pixmap is a saved rectangle
		121	*/
		122	#define MAX_PIXMAPS 256
		123	typedef struct {
		124	unsigned int width;
		125	unsigned int height;
1781	jermar	126	uint8_t *data;
1552	palkovsky	127	} pixmap_t;
		128	static pixmap_t pixmaps[MAX_PIXMAPS];
		129
		130	/* Viewport is a rectangular area on the screen */
1485	palkovsky	131	#define MAX_VIEWPORTS 128
		132	static viewport_t viewports[128];
		133
		134	/* Allow only 1 connection */
		135	static int client_connected = 0;
		136
1363	vana	137	#define RED(x, bits) ((x >> (16 + 8 - bits)) & ((1 << bits) - 1))
		138	#define GREEN(x, bits) ((x >> (8 + 8 - bits)) & ((1 << bits) - 1))
		139	#define BLUE(x, bits) ((x >> (8 - bits)) & ((1 << bits) - 1))
		140
1485	palkovsky	141	#define COL_WIDTH 8
		142	#define ROW_BYTES (screen.scanline * FONT_SCANLINES)
1363	vana	143
1485	palkovsky	144	#define POINTPOS(x, y) ((y) * screen.scanline + (x) * screen.pixelbytes)
1363	vana	145
1875	jermar	146	static inline int COLOR(int color)
		147	{
		148	return screen.invert_colors ? ~color : color;
		149	}
		150
1555	palkovsky	151	/* Conversion routines between different color representations */
2070	jermar	152	static void
		153	rgb_byte0888(void *dst, int rgb)
1363	vana	154	{
1555	palkovsky	155	(int )dst = rgb;
1363	vana	156	}
		157
2070	jermar	158	static int
		159	byte0888_rgb(void *src)
1363	vana	160	{
1555	palkovsky	161	return ((int )src) & 0xffffff;
1363	vana	162	}
		163
2070	jermar	164	static void
		165	bgr_byte0888(void *dst, int rgb)
1994	decky	166	{
2025	jermar	167	((uint32_t ) dst) = BLUE(rgb, 8) << 16 \| GREEN(rgb, 8) << 8 \|
		168	RED(rgb, 8);
1994	decky	169	}
		170
2070	jermar	171	static int
		172	byte0888_bgr(void *src)
1994	decky	173	{
		174	int color = (uint32_t )(src);
2070	jermar	175	return ((color & 0xff) << 16) \| (((color >> 8) & 0xff) << 8) \|
		176	((color >> 16) & 0xff);
1994	decky	177	}
		178
2070	jermar	179	static void
		180	rgb_byte888(void *dst, int rgb)
1363	vana	181	{
1781	jermar	182	uint8_t *scr = dst;
1871	jermar	183	#if defined(FB_INVERT_ENDIAN)
1555	palkovsky	184	scr[0] = RED(rgb, 8);
		185	scr[1] = GREEN(rgb, 8);
		186	scr[2] = BLUE(rgb, 8);
1363	vana	187	#else
1555	palkovsky	188	scr[2] = RED(rgb, 8);
		189	scr[1] = GREEN(rgb, 8);
		190	scr[0] = BLUE(rgb, 8);
1363	vana	191	#endif
		192	}
		193
2070	jermar	194	static int
		195	byte888_rgb(void *src)
1363	vana	196	{
1781	jermar	197	uint8_t *scr = src;
1871	jermar	198	#if defined(FB_INVERT_ENDIAN)
1555	palkovsky	199	return scr[0] << 16 \| scr[1] << 8 \| scr[2];
1363	vana	200	#else
1555	palkovsky	201	return scr[2] << 16 \| scr[1] << 8 \| scr[0];
		202	#endif
1363	vana	203	}
		204
1993	decky	205	/** 16-bit depth (5:5:5) */
2070	jermar	206	static void
		207	rgb_byte555(void *dst, int rgb)
1993	decky	208	{
		209	/* 5-bit, 5-bits, 5-bits */
2025	jermar	210	((uint16_t )(dst)) = RED(rgb, 5) << 10 \| GREEN(rgb, 5) << 5 \|
		211	BLUE(rgb, 5);
1993	decky	212	}
		213
		214	/** 16-bit depth (5:5:5) */
2070	jermar	215	static int
		216	byte555_rgb(void *src)
1993	decky	217	{
		218	int color = (uint16_t )(src);
2070	jermar	219	return (((color >> 10) & 0x1f) << (16 + 3)) \|
		220	(((color >> 5) & 0x1f) << (8 + 3)) \| ((color & 0x1f) << 3);
1993	decky	221	}
		222
1555	palkovsky	223	/** 16-bit depth (5:6:5) */
2070	jermar	224	static void
		225	rgb_byte565(void *dst, int rgb)
1363	vana	226	{
		227	/* 5-bit, 6-bits, 5-bits */
2025	jermar	228	((uint16_t )(dst)) = RED(rgb, 5) << 11 \| GREEN(rgb, 6) << 5 \|
		229	BLUE(rgb, 5);
1363	vana	230	}
		231
1555	palkovsky	232	/** 16-bit depth (5:6:5) */
2070	jermar	233	static int
		234	byte565_rgb(void *src)
1363	vana	235	{
1781	jermar	236	int color = (uint16_t )(src);
2070	jermar	237	return (((color >> 11) & 0x1f) << (16 + 3)) \|
		238	(((color >> 5) & 0x3f) << (8 + 2)) \| ((color & 0x1f) << 3);
1363	vana	239	}
		240
		241	/** Put pixel - 8-bit depth (3:2:3) */
2070	jermar	242	static void
		243	rgb_byte8(void *dst, int rgb)
1363	vana	244	{
1781	jermar	245	(uint8_t )dst = RED(rgb, 3) << 5 \| GREEN(rgb, 2) << 3 \| BLUE(rgb, 3);
1363	vana	246	}
		247
		248	/** Return pixel color - 8-bit depth (3:2:3) */
2070	jermar	249	static int
		250	byte8_rgb(void *src)
1363	vana	251	{
1781	jermar	252	int color = (uint8_t )src;
2070	jermar	253	return (((color >> 5) & 0x7) << (16 + 5)) \|
		254	(((color >> 3) & 0x3) << (8 + 6)) \| ((color & 0x7) << 5);
1363	vana	255	}
		256
1498	palkovsky	257	/** Put pixel into viewport
		258	*
1709	jermar	259	* @param vport Viewport identification
1498	palkovsky	260	* @param x X coord relative to viewport
		261	* @param y Y coord relative to viewport
		262	* @param color RGB color
		263	*/
2070	jermar	264	static void
		265	putpixel(viewport_t *vport, unsigned int x, unsigned int y, int color)
1485	palkovsky	266	{
1673	palkovsky	267	int dx = vport->x + x;
		268	int dy = vport->y + y;
1672	palkovsky	269
1673	palkovsky	270	if (! (vport->paused && vport->dbdata))
2070	jermar	271	(*screen.rgb2scr)(&screen.fbaddress[POINTPOS(dx,dy)],
		272	COLOR(color));
1672	palkovsky	273
1673	palkovsky	274	if (vport->dbdata) {
		275	int dline = (y + vport->dboffset) % vport->height;
		276	int doffset = screen.pixelbytes * (dline * vport->width + x);
1875	jermar	277	(*screen.rgb2scr)(&vport->dbdata[doffset], COLOR(color));
1672	palkovsky	278	}
1485	palkovsky	279	}
1672	palkovsky	280
1498	palkovsky	281	/** Get pixel from viewport */
2070	jermar	282	static int
		283	getpixel(viewport_t *vport, unsigned int x, unsigned int y)
1485	palkovsky	284	{
1673	palkovsky	285	int dx = vport->x + x;
		286	int dy = vport->y + y;
1555	palkovsky	287
2070	jermar	288	return COLOR((*screen.scr2rgb)(&screen.fbaddress[POINTPOS(dx, dy)]));
1485	palkovsky	289	}
		290
2070	jermar	291	static inline void
		292	putpixel_mem(char *mem, unsigned int x, unsigned int y, int color)
1363	vana	293	{
1875	jermar	294	(*screen.rgb2scr)(&mem[POINTPOS(x,y)], COLOR(color));
1363	vana	295	}
		296
2070	jermar	297	static void
		298	draw_rectangle(viewport_t *vport, unsigned int sx, unsigned int sy,
2025	jermar	299	unsigned int width, unsigned int height, int color)
1559	palkovsky	300	{
		301	unsigned int x, y;
1668	palkovsky	302	static void *tmpline;
1559	palkovsky	303
1668	palkovsky	304	if (!tmpline)
		305	tmpline = malloc(screen.scanline*screen.pixelbytes);
		306
1559	palkovsky	307	/* Clear first line */
		308	for (x = 0; x < width; x++)
1668	palkovsky	309	putpixel_mem(tmpline, x, 0, color);
1559	palkovsky	310
1673	palkovsky	311	if (!vport->paused) {
1672	palkovsky	312	/* Recompute to screen coords */
1673	palkovsky	313	sx += vport->x;
		314	sy += vport->y;
1672	palkovsky	315	/* Copy the rest */
		316	for (y = sy;y < sy+height; y++)
		317	memcpy(&screen.fbaddress[POINTPOS(sx,y)], tmpline,
		318	screen.pixelbytes * width);
		319	}
1673	palkovsky	320	if (vport->dbdata) {
2025	jermar	321	for (y = sy; y < sy + height; y++) {
1673	palkovsky	322	int rline = (y + vport->dboffset) % vport->height;
2025	jermar	323	int rpos = (rline * vport->width + sx) *
		324	screen.pixelbytes;
		325	memcpy(&vport->dbdata[rpos], tmpline,
		326	screen.pixelbytes * width);
1672	palkovsky	327	}
		328	}
1559	palkovsky	329
		330	}
		331
1485	palkovsky	332	/** Fill viewport with background color */
2070	jermar	333	static void
		334	clear_port(viewport_t *vport)
1363	vana	335	{
2025	jermar	336	draw_rectangle(vport, 0, 0, vport->width, vport->height,
		337	vport->style.bg_color);
1363	vana	338	}
		339
1672	palkovsky	340	/** Scroll unbuffered viewport up/down
1485	palkovsky	341	*
1709	jermar	342	* @param vport Viewport to scroll
		343	* @param lines Positive number - scroll up, negative - scroll down
1485	palkovsky	344	*/
2070	jermar	345	static void
		346	scroll_port_nodb(viewport_t *vport, int lines)
1363	vana	347	{
1485	palkovsky	348	int y;
1672	palkovsky	349
		350	if (lines > 0) {
2025	jermar	351	for (y = vport->y; y < vport->y+vport->height - lines; y++)
1559	palkovsky	352	memcpy(&screen.fbaddress[POINTPOS(vport->x,y)],
1672	palkovsky	353	&screen.fbaddress[POINTPOS(vport->x,y + lines)],
1559	palkovsky	354	screen.pixelbytes * vport->width);
2025	jermar	355	draw_rectangle(vport, 0, vport->height - lines, vport->width,
		356	lines, vport->style.bg_color);
1672	palkovsky	357	} else if (lines < 0) {
		358	lines = -lines;
2025	jermar	359	for (y = vport->y + vport->height-1; y >= vport->y + lines;
		360	y--)
1559	palkovsky	361	memcpy(&screen.fbaddress[POINTPOS(vport->x,y)],
1672	palkovsky	362	&screen.fbaddress[POINTPOS(vport->x,y - lines)],
		363	screen.pixelbytes * vport->width);
2025	jermar	364	draw_rectangle(vport, 0, 0, vport->width, lines,
		365	vport->style.bg_color);
1485	palkovsky	366	}
1363	vana	367	}
		368
1672	palkovsky	369	/** Refresh given viewport from double buffer */
2070	jermar	370	static void
		371	refresh_viewport_db(viewport_t *vport)
1672	palkovsky	372	{
		373	unsigned int y, srcy, srcoff, dsty, dstx;
		374
1673	palkovsky	375	for (y = 0; y < vport->height; y++) {
		376	srcy = (y + vport->dboffset) % vport->height;
		377	srcoff = (vport->width * srcy) * screen.pixelbytes;
1672	palkovsky	378
1673	palkovsky	379	dstx = vport->x;
		380	dsty = vport->y + y;
1672	palkovsky	381
		382	memcpy(&screen.fbaddress[POINTPOS(dstx,dsty)],
1673	palkovsky	383	&vport->dbdata[srcoff],
		384	vport->width*screen.pixelbytes);
1672	palkovsky	385	}
		386	}
		387
		388	/** Scroll viewport that has double buffering enabled */
2070	jermar	389	static void
		390	scroll_port_db(viewport_t *vport, int lines)
1672	palkovsky	391	{
1673	palkovsky	392	++vport->paused;
1672	palkovsky	393	if (lines > 0) {
1673	palkovsky	394	draw_rectangle(vport, 0, 0, vport->width, lines,
		395	vport->style.bg_color);
		396	vport->dboffset += lines;
		397	vport->dboffset %= vport->height;
1672	palkovsky	398	} else if (lines < 0) {
		399	lines = -lines;
1673	palkovsky	400	draw_rectangle(vport, 0, vport->height-lines,
		401	vport->width, lines,
		402	vport->style.bg_color);
1672	palkovsky	403
1673	palkovsky	404	if (vport->dboffset < lines)
		405	vport->dboffset += vport->height;
		406	vport->dboffset -= lines;
1672	palkovsky	407	}
		408
1673	palkovsky	409	--vport->paused;
1672	palkovsky	410
1673	palkovsky	411	refresh_viewport_db(vport);
1672	palkovsky	412	}
		413
		414	/** Scrolls viewport given number of lines */
2070	jermar	415	static void
		416	scroll_port(viewport_t *vport, int lines)
1672	palkovsky	417	{
1673	palkovsky	418	if (vport->dbdata)
		419	scroll_port_db(vport, lines);
1672	palkovsky	420	else
1673	palkovsky	421	scroll_port_nodb(vport, lines);
1672	palkovsky	422
		423	}
		424
2070	jermar	425	static void
		426	invert_pixel(viewport_t *vport, unsigned int x, unsigned int y)
1363	vana	427	{
1673	palkovsky	428	putpixel(vport, x, y, ~getpixel(vport, x, y));
1363	vana	429	}
		430
		431
		432	/***************************************************************/
		433	/* Character-console functions */
		434
1558	palkovsky	435	/** Draw character at given position
		436	*
1709	jermar	437	* @param vport Viewport where the character is printed
1558	palkovsky	438	* @param sx Coordinates of top-left of the character
		439	* @param sy Coordinates of top-left of the character
		440	* @param style Color of the character
		441	* @param transparent If false, print background color
		442	*/
2070	jermar	443	static void
		444	draw_glyph(viewport_t *vport,uint8_t glyph, unsigned int sx,
2025	jermar	445	unsigned int sy, style_t style, int transparent)
1363	vana	446	{
1509	palkovsky	447	int i;
1363	vana	448	unsigned int y;
1509	palkovsky	449	unsigned int glline;
1363	vana	450
1509	palkovsky	451	for (y = 0; y < FONT_SCANLINES; y++) {
		452	glline = fb_font[glyph * FONT_SCANLINES + y];
		453	for (i = 0; i < 8; i++) {
		454	if (glline & (1 << (7 - i)))
2025	jermar	455	putpixel(vport, sx + i, sy + y,
		456	style.fg_color);
1558	palkovsky	457	else if (!transparent)
2025	jermar	458	putpixel(vport, sx + i, sy + y,
		459	style.bg_color);
1509	palkovsky	460	}
		461	}
1363	vana	462	}
		463
		464	/** Invert character at given position */
2070	jermar	465	static void
		466	invert_char(viewport_t *vport,unsigned int row, unsigned int col)
1363	vana	467	{
		468	unsigned int x;
		469	unsigned int y;
		470
		471	for (x = 0; x < COL_WIDTH; x++)
		472	for (y = 0; y < FONT_SCANLINES; y++)
2025	jermar	473	invert_pixel(vport, col * COL_WIDTH + x, row *
		474	FONT_SCANLINES + y);
1363	vana	475	}
		476
		477	/***************************************************************/
		478	/* Stdout specific functions */
		479
		480
1485	palkovsky	481	/** Create new viewport
1363	vana	482	*
1485	palkovsky	483	* @return New viewport number
1363	vana	484	*/
2070	jermar	485	static int
		486	viewport_create(unsigned int x, unsigned int y,unsigned int width,
2025	jermar	487	unsigned int height)
1363	vana	488	{
1485	palkovsky	489	int i;
		490
2070	jermar	491	for (i = 0; i < MAX_VIEWPORTS; i++) {
1485	palkovsky	492	if (!viewports[i].initialized)
1363	vana	493	break;
		494	}
1485	palkovsky	495	if (i == MAX_VIEWPORTS)
		496	return ELIMIT;
		497
		498	viewports[i].x = x;
		499	viewports[i].y = y;
		500	viewports[i].width = width;
		501	viewports[i].height = height;
1363	vana	502
1485	palkovsky	503	viewports[i].rows = height / FONT_SCANLINES;
		504	viewports[i].cols = width / COL_WIDTH;
		505
1509	palkovsky	506	viewports[i].style.bg_color = DEFAULT_BGCOLOR;
		507	viewports[i].style.fg_color = DEFAULT_FGCOLOR;
1363	vana	508
1489	palkovsky	509	viewports[i].cur_col = 0;
		510	viewports[i].cur_row = 0;
		511	viewports[i].cursor_active = 0;
		512
1486	palkovsky	513	viewports[i].initialized = 1;
		514
1485	palkovsky	515	return i;
1363	vana	516	}
		517
		518	/** Initialize framebuffer as a chardev output device
		519	*
1993	decky	520	* @param addr Address of theframebuffer
		521	* @param xres Screen width in pixels
		522	* @param yres Screen height in pixels
		523	* @param visual Bits per pixel (8, 16, 24, 32)
		524	* @param scan Bytes per one scanline
1875	jermar	525	* @param invert_colors Inverted colors.
1363	vana	526	*
		527	*/
2070	jermar	528	static bool
		529	screen_init(void *addr, unsigned int xres, unsigned int yres,
2025	jermar	530	unsigned int scan, unsigned int visual, bool invert_colors)
1363	vana	531	{
1993	decky	532	switch (visual) {
		533	case VISUAL_INDIRECT_8:
		534	screen.rgb2scr = rgb_byte8;
		535	screen.scr2rgb = byte8_rgb;
1886	jermar	536	screen.pixelbytes = 1;
		537	break;
1993	decky	538	case VISUAL_RGB_5_5_5:
		539	screen.rgb2scr = rgb_byte555;
		540	screen.scr2rgb = byte555_rgb;
1886	jermar	541	screen.pixelbytes = 2;
		542	break;
1993	decky	543	case VISUAL_RGB_5_6_5:
		544	screen.rgb2scr = rgb_byte565;
		545	screen.scr2rgb = byte565_rgb;
		546	screen.pixelbytes = 2;
1886	jermar	547	break;
1993	decky	548	case VISUAL_RGB_8_8_8:
		549	screen.rgb2scr = rgb_byte888;
		550	screen.scr2rgb = byte888_rgb;
		551	screen.pixelbytes = 3;
		552	break;
		553	case VISUAL_RGB_8_8_8_0:
		554	screen.rgb2scr = rgb_byte888;
		555	screen.scr2rgb = byte888_rgb;
1886	jermar	556	screen.pixelbytes = 4;
		557	break;
1993	decky	558	case VISUAL_RGB_0_8_8_8:
		559	screen.rgb2scr = rgb_byte0888;
		560	screen.scr2rgb = byte0888_rgb;
		561	screen.pixelbytes = 4;
		562	break;
1994	decky	563	case VISUAL_BGR_0_8_8_8:
		564	screen.rgb2scr = bgr_byte0888;
		565	screen.scr2rgb = byte0888_bgr;
		566	screen.pixelbytes = 4;
		567	break;
1993	decky	568	default:
		569	return false;
1363	vana	570	}
		571
1485	palkovsky	572	screen.fbaddress = (unsigned char *) addr;
		573	screen.xres = xres;
		574	screen.yres = yres;
		575	screen.scanline = scan;
1875	jermar	576	screen.invert_colors = invert_colors;
1363	vana	577
1485	palkovsky	578	/* Create first viewport */
1993	decky	579	viewport_create(0, 0, xres, yres);
		580
		581	return true;
1485	palkovsky	582	}
1363	vana	583
1552	palkovsky	584	/** Hide cursor if it is shown */
2070	jermar	585	static void
		586	cursor_hide(viewport_t *vport)
1500	palkovsky	587	{
		588	if (vport->cursor_active && vport->cursor_shown) {
1673	palkovsky	589	invert_char(vport, vport->cur_row, vport->cur_col);
1500	palkovsky	590	vport->cursor_shown = 0;
		591	}
		592	}
		593
1552	palkovsky	594	/** Show cursor if cursor showing is enabled */
2070	jermar	595	static void
		596	cursor_print(viewport_t *vport)
1500	palkovsky	597	{
		598	/* Do not check for cursor_shown */
		599	if (vport->cursor_active) {
1673	palkovsky	600	invert_char(vport, vport->cur_row, vport->cur_col);
1500	palkovsky	601	vport->cursor_shown = 1;
		602	}
		603	}
		604
1552	palkovsky	605	/** Invert cursor, if it is enabled */
2070	jermar	606	static void
		607	cursor_blink(viewport_t *vport)
1500	palkovsky	608	{
		609	if (vport->cursor_shown)
1673	palkovsky	610	cursor_hide(vport);
1500	palkovsky	611	else
1673	palkovsky	612	cursor_print(vport);
1500	palkovsky	613	}
		614
1498	palkovsky	615	/** Draw character at given position relative to viewport
		616	*
1709	jermar	617	* @param vport Viewport identification
1498	palkovsky	618	* @param c Character to print
		619	* @param row Screen position relative to viewport
		620	* @param col Screen position relative to viewport
1558	palkovsky	621	* @param transparent If false, print background color with character
1498	palkovsky	622	*/
2070	jermar	623	static void
		624	draw_char(viewport_t *vport, char c, unsigned int row, unsigned int col,
		625	style_t style, int transparent)
1486	palkovsky	626	{
1500	palkovsky	627	/* Optimize - do not hide cursor if we are going to overwrite it */
		628	if (vport->cursor_active && vport->cursor_shown &&
		629	(vport->cur_col != col \|\| vport->cur_row != row))
1673	palkovsky	630	invert_char(vport, vport->cur_row, vport->cur_col);
1486	palkovsky	631
2025	jermar	632	draw_glyph(vport, c, col * COL_WIDTH, row * FONT_SCANLINES, style,
		633	transparent);
1489	palkovsky	634
		635	vport->cur_col = col;
		636	vport->cur_row = row;
		637
		638	vport->cur_col++;
2025	jermar	639	if (vport->cur_col >= vport->cols) {
1489	palkovsky	640	vport->cur_col = 0;
		641	vport->cur_row++;
		642	if (vport->cur_row >= vport->rows)
		643	vport->cur_row--;
1486	palkovsky	644	}
1673	palkovsky	645	cursor_print(vport);
1486	palkovsky	646	}
		647
1552	palkovsky	648	/** Draw text data to viewport
		649	*
1709	jermar	650	* @param vport Viewport id
1552	palkovsky	651	* @param data Text data fitting exactly into viewport
		652	*/
2070	jermar	653	static void
		654	draw_text_data(viewport_t vport, keyfield_t data)
1505	palkovsky	655	{
		656	int i;
1515	palkovsky	657	int col,row;
1505	palkovsky	658
1673	palkovsky	659	clear_port(vport);
2025	jermar	660	for (i = 0; i < vport->cols * vport->rows; i++) {
		661	if (data[i].character == ' ' && style_same(data[i].style,
		662	vport->style))
1505	palkovsky	663	continue;
1515	palkovsky	664	col = i % vport->cols;
		665	row = i / vport->cols;
2025	jermar	666	draw_glyph(vport, data[i].character, col * COL_WIDTH, row *
		667	FONT_SCANLINES, data[i].style,
		668	style_same(data[i].style,vport->style));
1505	palkovsky	669	}
1673	palkovsky	670	cursor_print(vport);
1505	palkovsky	671	}
		672
1555	palkovsky	673	/** Return first free pixmap */
2070	jermar	674	static int
		675	find_free_pixmap(void)
1555	palkovsky	676	{
		677	int i;
		678
2070	jermar	679	for (i = 0;i < MAX_PIXMAPS;i++)
1555	palkovsky	680	if (!pixmaps[i].data)
		681	return i;
		682	return -1;
		683	}
		684
2070	jermar	685	static void
		686	putpixel_pixmap(int pm, unsigned int x, unsigned int y, int color)
1555	palkovsky	687	{
		688	pixmap_t *pmap = &pixmaps[pm];
		689	int pos = (y * pmap->width + x) * screen.pixelbytes;
		690
1875	jermar	691	(*screen.rgb2scr)(&pmap->data[pos],COLOR(color));
1555	palkovsky	692	}
		693
		694	/** Create a new pixmap and return appropriate ID */
2070	jermar	695	static int
		696	shm2pixmap(unsigned char *shm, size_t size)
1555	palkovsky	697	{
		698	int pm;
		699	pixmap_t *pmap;
		700
		701	pm = find_free_pixmap();
		702	if (pm == -1)
		703	return ELIMIT;
		704	pmap = &pixmaps[pm];
		705
		706	if (ppm_get_data(shm, size, &pmap->width, &pmap->height))
		707	return EINVAL;
		708
		709	pmap->data = malloc(pmap->width * pmap->height * screen.pixelbytes);
		710	if (!pmap->data)
		711	return ENOMEM;
		712
		713	ppm_draw(shm, size, 0, 0, pmap->width, pmap->height,
1673	palkovsky	714	(putpixel_cb_t)putpixel_pixmap, (void *)pm);
1555	palkovsky	715
		716	return pm;
		717	}
		718
1552	palkovsky	719	/** Handle shared memory communication calls
		720	*
		721	* Protocol for drawing pixmaps:
		722	* - FB_PREPARE_SHM(client shm identification)
2025	jermar	723	* - IPC_M_AS_AREA_SEND
1552	palkovsky	724	* - FB_DRAW_PPM(startx,starty)
		725	* - FB_DROP_SHM
		726	*
		727	* Protocol for text drawing
2025	jermar	728	* - IPC_M_AS_AREA_SEND
1552	palkovsky	729	* - FB_DRAW_TEXT_DATA
		730	*
		731	* @param callid Callid of the current call
		732	* @param call Current call data
		733	* @param vp Active viewport
		734	* @return 0 if the call was not handled byt this function, 1 otherwise
		735	*
		736	* note: this function is not threads safe, you would have
		737	* to redefine static variables with __thread
		738	*/
2070	jermar	739	static int
		740	shm_handle(ipc_callid_t callid, ipc_call_t *call, int vp)
1547	palkovsky	741	{
		742	static keyfield_t *interbuffer = NULL;
		743	static size_t intersize = 0;
1505	palkovsky	744
1720	palkovsky	745	static unsigned char *shm = NULL;
1555	palkovsky	746	static ipcarg_t shm_id = 0;
		747	static size_t shm_size;
1547	palkovsky	748
		749	int handled = 1;
		750	int retval = 0;
		751	viewport_t *vport = &viewports[vp];
2070	jermar	752	unsigned int x, y;
1547	palkovsky	753
		754	switch (IPC_GET_METHOD(*call)) {
		755	case IPC_M_AS_AREA_SEND:
		756	/* We accept one area for data interchange */
1555	palkovsky	757	if (IPC_GET_ARG1(*call) == shm_id) {
2292	hudecek	758	void dest = as_get_mappable_page(IPC_GET_ARG2(call));
1555	palkovsky	759	shm_size = IPC_GET_ARG2(*call);
2015	jermar	760	if (!ipc_answer_fast(callid, 0, (sysarg_t) dest, 0))
1555	palkovsky	761	shm = dest;
1547	palkovsky	762	else
1555	palkovsky	763	shm_id = 0;
		764	if (shm[0] != 'P')
1547	palkovsky	765	while (1)
		766	;
		767	return 1;
		768	} else {
		769	intersize = IPC_GET_ARG2(*call);
2015	jermar	770	receive_comm_area(callid, call, (void *) &interbuffer);
1547	palkovsky	771	}
		772	return 1;
		773	case FB_PREPARE_SHM:
1555	palkovsky	774	if (shm_id)
1547	palkovsky	775	retval = EBUSY;
		776	else
1555	palkovsky	777	shm_id = IPC_GET_ARG1(*call);
1547	palkovsky	778	break;
		779
		780	case FB_DROP_SHM:
1555	palkovsky	781	if (shm) {
		782	as_area_destroy(shm);
		783	shm = NULL;
1547	palkovsky	784	}
1555	palkovsky	785	shm_id = 0;
1547	palkovsky	786	break;
1555	palkovsky	787
		788	case FB_SHM2PIXMAP:
		789	if (!shm) {
		790	retval = EINVAL;
		791	break;
		792	}
		793	retval = shm2pixmap(shm, shm_size);
		794	break;
1547	palkovsky	795	case FB_DRAW_PPM:
1555	palkovsky	796	if (!shm) {
1547	palkovsky	797	retval = EINVAL;
		798	break;
		799	}
		800	x = IPC_GET_ARG1(*call);
		801	y = IPC_GET_ARG2(*call);
		802	if (x > vport->width \|\| y > vport->height) {
		803	retval = EINVAL;
		804	break;
		805	}
		806
2025	jermar	807	ppm_draw(shm, shm_size, IPC_GET_ARG1(*call),
2070	jermar	808	IPC_GET_ARG2(*call), vport->width - x,
		809	vport->height - y, (putpixel_cb_t)putpixel, vport);
1547	palkovsky	810	break;
		811	case FB_DRAW_TEXT_DATA:
		812	if (!interbuffer) {
		813	retval = EINVAL;
		814	break;
		815	}
2025	jermar	816	if (intersize < vport->cols * vport->rows *
		817	sizeof(*interbuffer)) {
1547	palkovsky	818	retval = EINVAL;
		819	break;
		820	}
1673	palkovsky	821	draw_text_data(vport, interbuffer);
1547	palkovsky	822	break;
		823	default:
		824	handled = 0;
		825	}
		826
		827	if (handled)
		828	ipc_answer_fast(callid, retval, 0, 0);
		829	return handled;
		830	}
		831
2070	jermar	832	static void
		833	copy_vp_to_pixmap(viewport_t vport, pixmap_t pmap)
1552	palkovsky	834	{
1720	palkovsky	835	int y;
2307	hudecek	836	int tmp, srcrowsize;
		837	int realwidth, realheight, realrowsize;
1711	palkovsky	838	int width = vport->width;
		839	int height = vport->height;
1552	palkovsky	840
1711	palkovsky	841	if (width + vport->x > screen.xres)
		842	width = screen.xres - vport->x;
2307	hudecek	843	if (height + vport->y > screen.yres)
1711	palkovsky	844	height = screen.yres - vport->y;
2307	hudecek	845
		846	realwidth = pmap->width <= width ? pmap->width : width;
		847	realheight = pmap->height <= height ? pmap->height : height;
1711	palkovsky	848
2307	hudecek	849	srcrowsize = vport->width * screen.pixelbytes;
		850	realrowsize = realwidth * screen.pixelbytes;
		851
		852	for (y = 0; y < realheight; y++) {
2070	jermar	853	tmp = (vport->y + y) * screen.scanline +
		854	vport->x * screen.pixelbytes;
2307	hudecek	855	memcpy(pmap->data + srcrowsize * y, screen.fbaddress + tmp,
		856	realrowsize);
1711	palkovsky	857	}
		858	}
		859
		860	/** Save viewport to pixmap */
2070	jermar	861	static int
		862	save_vp_to_pixmap(viewport_t *vport)
1711	palkovsky	863	{
		864	int pm;
		865	pixmap_t *pmap;
		866
1552	palkovsky	867	pm = find_free_pixmap();
		868	if (pm == -1)
		869	return ELIMIT;
		870
		871	pmap = &pixmaps[pm];
		872	pmap->data = malloc(screen.pixelbytes * vport->width * vport->height);
		873	if (!pmap->data)
		874	return ENOMEM;
		875
		876	pmap->width = vport->width;
		877	pmap->height = vport->height;
1711	palkovsky	878
		879	copy_vp_to_pixmap(vport, pmap);
1552	palkovsky	880
		881	return pm;
		882	}
		883
		884	/** Draw pixmap on screen
		885	*
		886	* @param vp Viewport to draw on
		887	* @param pm Pixmap identifier
		888	*/
		889	static int draw_pixmap(int vp, int pm)
		890	{
		891	pixmap_t *pmap = &pixmaps[pm];
		892	viewport_t *vport = &viewports[vp];
1720	palkovsky	893	int y;
1552	palkovsky	894	int tmp, srcrowsize;
		895	int realwidth, realheight, realrowsize;
1711	palkovsky	896	int width = vport->width;
		897	int height = vport->height;
1552	palkovsky	898
1711	palkovsky	899	if (width + vport->x > screen.xres)
		900	width = screen.xres - vport->x;
		901	if (height + vport->y > screen.yres)
		902	height = screen.yres - vport->y;
		903
1552	palkovsky	904	if (!pmap->data)
		905	return EINVAL;
		906
1711	palkovsky	907	realwidth = pmap->width <= width ? pmap->width : width;
		908	realheight = pmap->height <= height ? pmap->height : height;
1552	palkovsky	909
		910	srcrowsize = vport->width * screen.pixelbytes;
		911	realrowsize = realwidth * screen.pixelbytes;
		912
2070	jermar	913	for (y = 0; y < realheight; y++) {
		914	tmp = (vport->y + y) * screen.scanline +
		915	vport->x * screen.pixelbytes;
2025	jermar	916	memcpy(screen.fbaddress + tmp, pmap->data + y * srcrowsize,
		917	realrowsize);
1552	palkovsky	918	}
1567	palkovsky	919	return 0;
1552	palkovsky	920	}
		921
1646	palkovsky	922	/** Tick animation one step forward */
2070	jermar	923	static void
		924	anims_tick(void)
1646	palkovsky	925	{
		926	int i;
		927	static int counts = 0;
		928
		929	/* Limit redrawing */
2025	jermar	930	counts = (counts + 1) % 8;
1646	palkovsky	931	if (counts)
		932	return;
		933
2070	jermar	934	for (i = 0; i < MAX_ANIMATIONS; i++) {
2025	jermar	935	if (!animations[i].animlen \|\| !animations[i].initialized \|\|
		936	!animations[i].enabled)
1646	palkovsky	937	continue;
2025	jermar	938	draw_pixmap(animations[i].vp,
		939	animations[i].pixmaps[animations[i].pos]);
		940	animations[i].pos = (animations[i].pos + 1) %
		941	animations[i].animlen;
1646	palkovsky	942	}
		943	}
		944
1711	palkovsky	945
		946	static int pointer_x, pointer_y;
1723	palkovsky	947	static int pointer_shown, pointer_enabled;
1711	palkovsky	948	static int pointer_vport = -1;
		949	static int pointer_pixmap = -1;
		950
2070	jermar	951	static void
		952	mouse_show(void)
1711	palkovsky	953	{
2070	jermar	954	int i, j;
1711	palkovsky	955	int visibility;
		956	int color;
		957	int bytepos;
		958
1723	palkovsky	959	if (pointer_shown \|\| !pointer_enabled)
		960	return;
		961
1711	palkovsky	962	/* Save image under the cursor */
		963	if (pointer_vport == -1) {
2025	jermar	964	pointer_vport = viewport_create(pointer_x, pointer_y,
		965	pointer_width, pointer_height);
1711	palkovsky	966	if (pointer_vport < 0)
		967	return;
		968	} else {
		969	viewports[pointer_vport].x = pointer_x;
		970	viewports[pointer_vport].y = pointer_y;
		971	}
		972
		973	if (pointer_pixmap == -1)
		974	pointer_pixmap = save_vp_to_pixmap(&viewports[pointer_vport]);
		975	else
2025	jermar	976	copy_vp_to_pixmap(&viewports[pointer_vport],
		977	&pixmaps[pointer_pixmap]);
1711	palkovsky	978
		979	/* Draw cursor */
2025	jermar	980	for (i = 0; i < pointer_height; i++)
		981	for (j = 0; j < pointer_width; j++) {
		982	bytepos = i * ((pointer_width - 1) / 8 + 1) + j / 8;
2070	jermar	983	visibility = pointer_mask_bits[bytepos] &
		984	(1 << (j % 8));
1711	palkovsky	985	if (visibility) {
2025	jermar	986	color = pointer_bits[bytepos] & (1 << (j % 8))
		987	? 0 : 0xffffff;
		988	if (pointer_x + j < screen.xres && pointer_y +
		989	i < screen.yres)
		990	putpixel(&viewports[0], pointer_x + j,
2070	jermar	991	pointer_y + i, color);
1711	palkovsky	992	}
		993	}
		994	pointer_shown = 1;
		995	}
		996
2070	jermar	997	static void
		998	mouse_hide(void)
1711	palkovsky	999	{
		1000	/* Restore image under the cursor */
		1001	if (pointer_shown) {
		1002	draw_pixmap(pointer_vport, pointer_pixmap);
		1003	pointer_shown = 0;
		1004	}
		1005	}
		1006
2070	jermar	1007	static void
		1008	mouse_move(unsigned int x, unsigned int y)
1711	palkovsky	1009	{
		1010	mouse_hide();
		1011	pointer_x = x;
		1012	pointer_y = y;
		1013	mouse_show();
		1014	}
		1015
2070	jermar	1016	static int
		1017	anim_handle(ipc_callid_t callid, ipc_call_t *call, int vp)
1646	palkovsky	1018	{
		1019	int handled = 1;
		1020	int retval = 0;
		1021	int i,nvp;
		1022	int newval;
		1023
		1024	switch (IPC_GET_METHOD(*call)) {
		1025	case FB_ANIM_CREATE:
		1026	nvp = IPC_GET_ARG1(*call);
		1027	if (nvp == -1)
		1028	nvp = vp;
2025	jermar	1029	if (nvp >= MAX_VIEWPORTS \|\| nvp < 0 \|\|
		1030	!viewports[nvp].initialized) {
1646	palkovsky	1031	retval = EINVAL;
		1032	break;
		1033	}
2025	jermar	1034	for (i = 0; i < MAX_ANIMATIONS; i++) {
		1035	if (!animations[i].initialized)
1646	palkovsky	1036	break;
		1037	}
		1038	if (i == MAX_ANIMATIONS) {
		1039	retval = ELIMIT;
		1040	break;
		1041	}
		1042	animations[i].initialized = 1;
		1043	animations[i].animlen = 0;
		1044	animations[i].pos = 0;
		1045	animations[i].enabled = 0;
		1046	animations[i].vp = nvp;
		1047	retval = i;
		1048	break;
		1049	case FB_ANIM_DROP:
		1050	i = IPC_GET_ARG1(*call);
1720	palkovsky	1051	if (i >= MAX_ANIMATIONS \|\| i < 0) {
1646	palkovsky	1052	retval = EINVAL;
		1053	break;
		1054	}
		1055	animations[i].initialized = 0;
		1056	break;
		1057	case FB_ANIM_ADDPIXMAP:
		1058	i = IPC_GET_ARG1(*call);
2025	jermar	1059	if (i >= MAX_ANIMATIONS \|\| i < 0 \|\|
		1060	!animations[i].initialized) {
1646	palkovsky	1061	retval = EINVAL;
		1062	break;
		1063	}
		1064	if (animations[i].animlen == MAX_ANIM_LEN) {
		1065	retval = ELIMIT;
		1066	break;
		1067	}
		1068	newval = IPC_GET_ARG2(*call);
2025	jermar	1069	if (newval < 0 \|\| newval > MAX_PIXMAPS \|\|
		1070	!pixmaps[newval].data) {
1646	palkovsky	1071	retval = EINVAL;
		1072	break;
		1073	}
		1074	animations[i].pixmaps[animations[i].animlen++] = newval;
		1075	break;
		1076	case FB_ANIM_CHGVP:
		1077	i = IPC_GET_ARG1(*call);
		1078	if (i >= MAX_ANIMATIONS \|\| i < 0) {
		1079	retval = EINVAL;
		1080	break;
		1081	}
		1082	nvp = IPC_GET_ARG2(*call);
		1083	if (nvp == -1)
		1084	nvp = vp;
2025	jermar	1085	if (nvp >= MAX_VIEWPORTS \|\| nvp < 0 \|\|
		1086	!viewports[nvp].initialized) {
1646	palkovsky	1087	retval = EINVAL;
		1088	break;
		1089	}
		1090	animations[i].vp = nvp;
		1091	break;
		1092	case FB_ANIM_START:
		1093	case FB_ANIM_STOP:
		1094	i = IPC_GET_ARG1(*call);
		1095	if (i >= MAX_ANIMATIONS \|\| i < 0) {
		1096	retval = EINVAL;
		1097	break;
		1098	}
		1099	newval = (IPC_GET_METHOD(*call) == FB_ANIM_START);
		1100	if (newval ^ animations[i].enabled) {
		1101	animations[i].enabled = newval;
		1102	anims_enabled += newval ? 1 : -1;
		1103	}
		1104	break;
		1105	default:
		1106	handled = 0;
		1107	}
		1108	if (handled)
		1109	ipc_answer_fast(callid, retval, 0, 0);
		1110	return handled;
		1111	}
		1112
1552	palkovsky	1113	/** Handler for messages concerning pixmap handling */
2070	jermar	1114	static int
		1115	pixmap_handle(ipc_callid_t callid, ipc_call_t *call, int vp)
1552	palkovsky	1116	{
		1117	int handled = 1;
		1118	int retval = 0;
		1119	int i,nvp;
		1120
		1121	switch (IPC_GET_METHOD(*call)) {
		1122	case FB_VP_DRAW_PIXMAP:
		1123	nvp = IPC_GET_ARG1(*call);
		1124	if (nvp == -1)
		1125	nvp = vp;
2025	jermar	1126	if (nvp < 0 \|\| nvp >= MAX_VIEWPORTS \|\|
		1127	!viewports[nvp].initialized) {
1552	palkovsky	1128	retval = EINVAL;
		1129	break;
		1130	}
		1131	i = IPC_GET_ARG2(*call);
		1132	retval = draw_pixmap(nvp, i);
		1133	break;
		1134	case FB_VP2PIXMAP:
		1135	nvp = IPC_GET_ARG1(*call);
		1136	if (nvp == -1)
		1137	nvp = vp;
2025	jermar	1138	if (nvp < 0 \|\| nvp >= MAX_VIEWPORTS \|\|
		1139	!viewports[nvp].initialized)
1552	palkovsky	1140	retval = EINVAL;
		1141	else
1711	palkovsky	1142	retval = save_vp_to_pixmap(&viewports[nvp]);
1552	palkovsky	1143	break;
		1144	case FB_DROP_PIXMAP:
		1145	i = IPC_GET_ARG1(*call);
		1146	if (i >= MAX_PIXMAPS) {
		1147	retval = EINVAL;
		1148	break;
		1149	}
		1150	if (pixmaps[i].data) {
		1151	free(pixmaps[i].data);
		1152	pixmaps[i].data = NULL;
		1153	}
		1154	break;
		1155	default:
		1156	handled = 0;
		1157	}
		1158
		1159	if (handled)
		1160	ipc_answer_fast(callid, retval, 0, 0);
		1161	return handled;
		1162
		1163	}
		1164
1498	palkovsky	1165	/** Function for handling connections to FB
		1166	*
		1167	*/
2070	jermar	1168	static void
		1169	fb_client_connection(ipc_callid_t iid, ipc_call_t *icall)
1363	vana	1170	{
1485	palkovsky	1171	ipc_callid_t callid;
		1172	ipc_call_t call;
		1173	int retval;
		1174	int i;
		1175	unsigned int row,col;
		1176	char c;
1486	palkovsky	1177
1485	palkovsky	1178	int vp = 0;
1486	palkovsky	1179	viewport_t *vport = &viewports[0];
1363	vana	1180
1485	palkovsky	1181	if (client_connected) {
		1182	ipc_answer_fast(iid, ELIMIT, 0,0);
		1183	return;
		1184	}
1486	palkovsky	1185	client_connected = 1;
1485	palkovsky	1186	ipc_answer_fast(iid, 0, 0, 0); /* Accept connection */
1363	vana	1187
1485	palkovsky	1188	while (1) {
1646	palkovsky	1189	if (vport->cursor_active \|\| anims_enabled)
2070	jermar	1190	callid = async_get_call_timeout(&call, 250000);
1640	palkovsky	1191	else
		1192	callid = async_get_call(&call);
		1193
1713	palkovsky	1194	mouse_hide();
1500	palkovsky	1195	if (!callid) {
1673	palkovsky	1196	cursor_blink(vport);
1646	palkovsky	1197	anims_tick();
1723	palkovsky	1198	mouse_show();
1500	palkovsky	1199	continue;
		1200	}
1547	palkovsky	1201	if (shm_handle(callid, &call, vp))
		1202	continue;
1552	palkovsky	1203	if (pixmap_handle(callid, &call, vp))
		1204	continue;
1646	palkovsky	1205	if (anim_handle(callid, &call, vp))
		1206	continue;
1547	palkovsky	1207
1485	palkovsky	1208	switch (IPC_GET_METHOD(call)) {
		1209	case IPC_M_PHONE_HUNGUP:
		1210	client_connected = 0;
		1211	/* cleanup other viewports */
2025	jermar	1212	for (i = 1; i < MAX_VIEWPORTS; i++)
1486	palkovsky	1213	vport->initialized = 0;
1485	palkovsky	1214	return; /* Exit thread */
1505	palkovsky	1215
1485	palkovsky	1216	case FB_PUTCHAR:
1558	palkovsky	1217	case FB_TRANS_PUTCHAR:
1485	palkovsky	1218	c = IPC_GET_ARG1(call);
		1219	row = IPC_GET_ARG2(call);
		1220	col = IPC_GET_ARG3(call);
1486	palkovsky	1221	if (row >= vport->rows \|\| col >= vport->cols) {
1485	palkovsky	1222	retval = EINVAL;
		1223	break;
		1224	}
2070	jermar	1225	ipc_answer_fast(callid, 0, 0, 0);
1486	palkovsky	1226
2025	jermar	1227	draw_char(vport, c, row, col, vport->style,
		1228	IPC_GET_METHOD(call) == FB_TRANS_PUTCHAR);
1485	palkovsky	1229	continue; /* msg already answered */
		1230	case FB_CLEAR:
1673	palkovsky	1231	clear_port(vport);
		1232	cursor_print(vport);
1485	palkovsky	1233	retval = 0;
		1234	break;
1486	palkovsky	1235	case FB_CURSOR_GOTO:
		1236	row = IPC_GET_ARG1(call);
		1237	col = IPC_GET_ARG2(call);
		1238	if (row >= vport->rows \|\| col >= vport->cols) {
		1239	retval = EINVAL;
		1240	break;
		1241	}
		1242	retval = 0;
1673	palkovsky	1243	cursor_hide(vport);
1486	palkovsky	1244	vport->cur_col = col;
		1245	vport->cur_row = row;
1673	palkovsky	1246	cursor_print(vport);
1486	palkovsky	1247	break;
		1248	case FB_CURSOR_VISIBILITY:
1673	palkovsky	1249	cursor_hide(vport);
1500	palkovsky	1250	vport->cursor_active = IPC_GET_ARG1(call);
1673	palkovsky	1251	cursor_print(vport);
1486	palkovsky	1252	retval = 0;
		1253	break;
1485	palkovsky	1254	case FB_GET_CSIZE:
1486	palkovsky	1255	ipc_answer_fast(callid, 0, vport->rows, vport->cols);
1485	palkovsky	1256	continue;
1486	palkovsky	1257	case FB_SCROLL:
		1258	i = IPC_GET_ARG1(call);
		1259	if (i > vport->rows \|\| i < (- (int)vport->rows)) {
		1260	retval = EINVAL;
		1261	break;
		1262	}
1673	palkovsky	1263	cursor_hide(vport);
		1264	scroll_port(vport, i*FONT_SCANLINES);
		1265	cursor_print(vport);
1486	palkovsky	1266	retval = 0;
		1267	break;
1672	palkovsky	1268	case FB_VIEWPORT_DB:
		1269	/* Enable double buffering */
		1270	i = IPC_GET_ARG1(call);
		1271	if (i == -1)
		1272	i = vp;
		1273	if (i < 0 \|\| i >= MAX_VIEWPORTS) {
		1274	retval = EINVAL;
		1275	break;
		1276	}
		1277	if (! viewports[i].initialized ) {
		1278	retval = EADDRNOTAVAIL;
		1279	break;
		1280	}
		1281	viewports[i].dboffset = 0;
		1282	if (IPC_GET_ARG2(call) == 1 && !viewports[i].dbdata)
2025	jermar	1283	viewports[i].dbdata = malloc(screen.pixelbytes
		1284	* viewports[i].width *
		1285	viewports[i].height);
		1286	else if (IPC_GET_ARG2(call) == 0 &&
		1287	viewports[i].dbdata) {
1672	palkovsky	1288	free(viewports[i].dbdata);
		1289	viewports[i].dbdata = NULL;
		1290	}
		1291	retval = 0;
		1292	break;
1486	palkovsky	1293	case FB_VIEWPORT_SWITCH:
		1294	i = IPC_GET_ARG1(call);
		1295	if (i < 0 \|\| i >= MAX_VIEWPORTS) {
		1296	retval = EINVAL;
		1297	break;
		1298	}
		1299	if (! viewports[i].initialized ) {
		1300	retval = EADDRNOTAVAIL;
		1301	break;
		1302	}
1673	palkovsky	1303	cursor_hide(vport);
1486	palkovsky	1304	vp = i;
		1305	vport = &viewports[vp];
1673	palkovsky	1306	cursor_print(vport);
1486	palkovsky	1307	retval = 0;
		1308	break;
		1309	case FB_VIEWPORT_CREATE:
		1310	retval = viewport_create(IPC_GET_ARG1(call) >> 16,
2070	jermar	1311	IPC_GET_ARG1(call) & 0xffff,
		1312	IPC_GET_ARG2(call) >> 16,
		1313	IPC_GET_ARG2(call) & 0xffff);
1486	palkovsky	1314	break;
		1315	case FB_VIEWPORT_DELETE:
		1316	i = IPC_GET_ARG1(call);
		1317	if (i < 0 \|\| i >= MAX_VIEWPORTS) {
		1318	retval = EINVAL;
		1319	break;
		1320	}
		1321	if (! viewports[i].initialized ) {
		1322	retval = EADDRNOTAVAIL;
		1323	break;
		1324	}
		1325	viewports[i].initialized = 0;
1672	palkovsky	1326	if (viewports[i].dbdata) {
		1327	free(viewports[i].dbdata);
		1328	viewports[i].dbdata = NULL;
		1329	}
1486	palkovsky	1330	retval = 0;
		1331	break;
		1332	case FB_SET_STYLE:
1509	palkovsky	1333	vport->style.fg_color = IPC_GET_ARG1(call);
		1334	vport->style.bg_color = IPC_GET_ARG2(call);
1486	palkovsky	1335	retval = 0;
		1336	break;
		1337	case FB_GET_RESOLUTION:
		1338	ipc_answer_fast(callid, 0, screen.xres,screen.yres);
		1339	continue;
1707	palkovsky	1340	case FB_POINTER_MOVE:
1723	palkovsky	1341	pointer_enabled = 1;
1711	palkovsky	1342	mouse_move(IPC_GET_ARG1(call), IPC_GET_ARG2(call));
1720	palkovsky	1343	retval = 0;
1707	palkovsky	1344	break;
1485	palkovsky	1345	default:
		1346	retval = ENOENT;
		1347	}
2070	jermar	1348	ipc_answer_fast(callid,retval, 0, 0);
1363	vana	1349	}
1485	palkovsky	1350	}
1363	vana	1351
1498	palkovsky	1352	/** Initialization of framebuffer */
2070	jermar	1353	int
		1354	fb_init(void)
1485	palkovsky	1355	{
1501	palkovsky	1356	void *fb_ph_addr;
1490	palkovsky	1357	unsigned int fb_width;
		1358	unsigned int fb_height;
		1359	unsigned int fb_scanline;
1993	decky	1360	unsigned int fb_visual;
		1361	bool fb_invert_colors;
1501	palkovsky	1362	void *fb_addr;
		1363	size_t asz;
1363	vana	1364
1490	palkovsky	1365	async_set_client_connection(fb_client_connection);
1363	vana	1366
1886	jermar	1367	fb_ph_addr = (void *) sysinfo_value("fb.address.physical");
		1368	fb_width = sysinfo_value("fb.width");
		1369	fb_height = sysinfo_value("fb.height");
		1370	fb_scanline = sysinfo_value("fb.scanline");
1993	decky	1371	fb_visual = sysinfo_value("fb.visual");
1886	jermar	1372	fb_invert_colors = sysinfo_value("fb.invert-colors");
1490	palkovsky	1373
1993	decky	1374	asz = fb_scanline * fb_height;
2292	hudecek	1375	fb_addr = as_get_mappable_page(asz);
1485	palkovsky	1376
2025	jermar	1377	physmem_map(fb_ph_addr, fb_addr, ALIGN_UP(asz, PAGE_SIZE) >>
		1378	PAGE_WIDTH, AS_AREA_READ \| AS_AREA_WRITE);
1886	jermar	1379
2015	jermar	1380	if (screen_init(fb_addr, fb_width, fb_height, fb_scanline, fb_visual,
		1381	fb_invert_colors))
1993	decky	1382	return 0;
		1383
		1384	return -1;
1363	vana	1385	}
1490	palkovsky	1386
1649	cejka	1387	/**
		1388	* @}
		1389	*/

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(root)/branches/rcu/uspace/fb/fb.c – Rev 2307