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root/cebix/BasiliskII/src/video.cpp

Comparing BasiliskII/src/video.cpp (file contents):
Revision 1.17 by cebix, 2001-07-01T12:42:01Z vs.
Revision 1.25 by cebix, 2002-04-25T11:00:30Z

#	Line 1 | Line 1
1		/*
2		*  video.cpp - Video/graphics emulation
3		*
4	<	*  Basilisk II (C) 1997-2001 Christian Bauer
5	<	*  Portions (C) 1997-1999 Marc Hellwig
4	>	*  Basilisk II (C) 1997-2002 Christian Bauer
5	>	*  Portions written by Marc Hellwig
6		*
7		*  This program is free software; you can redistribute it and/or modify
8		*  it under the terms of the GNU General Public License as published by
#	Line 23 | Line 23
23		*  SEE ALSO
24		*    Inside Macintosh: Devices, chapter 1 "Device Manager"
25		*    Designing Cards and Drivers for the Macintosh Family, Second Edition
26	+	*    Designing PCI Cards and Drivers for Power Macintosh Computers
27	+	*    Display Device Driver Guide
28		*/
29
30		#include <stdio.h>
#	Line 39 | Line 41
41		#include "debug.h"
42
43
44	<	// List of supported video modes
45	<	vector<video_mode> VideoModes;
44	>	// Next available NuBus slot ID
45	>	uint8 monitor_desc::next_slot_id = 0x80;
46
47	<	// Description of the main monitor
48	<	monitor_desc VideoMonitor;
47	>	// Vector of pointers to available monitor descriptions, filled by VideoInit()
48	>	vector<monitor_desc *> VideoMonitors;
49
50	<	// Local variables (per monitor)
51	<	struct {
52	<	monitor_desc *desc;                     // Pointer to description of monitor handled by this instance of the driver
53	<	uint8 palette[256 * 3];         // Color palette, 256 entries, RGB
54	<	bool luminance_mapping;         // Luminance mapping on/off
55	<	bool interrupts_enabled;        // VBL interrupts on/off
56	<	uint32 gamma_table;                     // Mac address of gamma table
57	<	int alloc_gamma_table_size;     // Allocated size of gamma table
58	<	uint16 current_mode;            // Currently selected depth/resolution
59	<	uint32 current_id;
60	<	uint16 preferred_mode;          // Preferred depth/resolution
61	<	uint32 preferred_id;
62	<	uint32 slot_param;                      // Mac address of Slot Manager parameter block
63	<	} VidLocal;
50	>
51	>	/*
52	>	*  Find palette size for given color depth
53	>	*/
54	>
55	>	static int palette_size(video_depth depth)
56	>	{
57	>	switch (depth) {
58	>	case VDEPTH_1BIT: return 2;
59	>	case VDEPTH_2BIT: return 4;
60	>	case VDEPTH_4BIT: return 16;
61	>	case VDEPTH_8BIT: return 256;
62	>	case VDEPTH_16BIT: return 32;
63	>	case VDEPTH_32BIT: return 256;
64	>	default: return 0;
65	>	}
66	>	}
67	>
68	>
69	>	/*
70	>	*  Find pointer to monitor_desc for given slot ID (or NULL if not found)
71	>	*/
72	>
73	>	static monitor_desc *find_monitor(uint8 id)
74	>	{
75	>	vector<monitor_desc *>::const_iterator i, end = VideoMonitors.end();
76	>	for (i = VideoMonitors.begin(); i != end; ++i) {
77	>	if ((*i)->get_slot_id() == id)
78	>	return *i;
79	>	}
80	>	return NULL;
81	>	}
82	>
83	>
84	>	/*
85	>	*  monitor_desc constructor
86	>	*/
87	>
88	>	monitor_desc::monitor_desc(const vector<video_mode> &available_modes, video_depth default_depth, uint32 default_id) : modes(available_modes)
89	>	{
90	>	// Assign the next slot ID on construction
91	>	slot_id = next_slot_id++;
92	>
93	>	// Initialize Apple mode list
94	>	uint16 mode = 0x80;
95	>	for (int depth = VDEPTH_1BIT; depth <= VDEPTH_32BIT; depth++) {
96	>	if (has_depth(video_depth(depth)))
97	>	apple_mode_for_depth[depth] = mode++;
98	>	else
99	>	apple_mode_for_depth[depth] = 0;
100	>	}
101	>
102	>	// Set default mode
103	>	current_mode = find_mode(depth_to_apple_mode(default_depth), default_id);
104	>	}
105
106
107		/*
108	<	*  Check whether specified resolution ID is one of the supported resolutions
108	>	*  Get bytes-per-row value for specified resolution/depth
109	>	*  (if the mode isn't supported, make a good guess)
110		*/
111
112	<	static bool has_resolution(uint32 id)
112	>	uint32 monitor_desc::get_bytes_per_row(video_depth depth, uint32 id) const
113		{
114	<	vector<video_mode>::const_iterator i = VideoModes.begin(), end = VideoModes.end();
114	>	vector<video_mode>::const_iterator i, end = modes.end();
115	>	for (i = modes.begin(); i != end; ++i) {
116	>	if (i->depth == depth && i->resolution_id == id)
117	>	return i->bytes_per_row;
118	>	}
119	>	uint32 x, y;
120	>	get_size_of_resolution(id, x, y);
121	>	return TrivialBytesPerRow(x, depth);
122	>	}
123	>
124	>
125	>	/*
126	>	*  Check whether a mode with the specified depth exists on this display
127	>	*/
128	>
129	>	bool monitor_desc::has_depth(video_depth depth) const
130	>	{
131	>	vector<video_mode>::const_iterator i = modes.begin(), end = modes.end();
132		while (i != end) {
133	<	if (i->resolution_id == id)
133	>	if (i->depth == depth)
134		return true;
135		++i;
136		}
#	Line 78 | Line 139 | static bool has_resolution(uint32 id)
139
140
141		/*
142	<	*  Find specified mode (depth/resolution) (or VideoModes.end() if not found)
142	>	*  Check whether the specified resolution ID is one of the supported resolutions
143		*/
144
145	<	static vector<video_mode>::const_iterator find_mode(uint16 mode, uint32 id)
145	>	bool monitor_desc::has_resolution(uint32 id) const
146		{
147	<	vector<video_mode>::const_iterator i = VideoModes.begin(), end = VideoModes.end();
148	<	while (i != end) {
149	<	if (i->resolution_id == id && DepthToAppleMode(i->depth) == mode)
147	>	vector<video_mode>::const_iterator i, end = modes.end();
148	>	for (i = modes.begin(); i != end; ++i) {
149	>	if (i->resolution_id == id)
150	>	return true;
151	>	}
152	>	return false;
153	>	}
154	>
155	>
156	>	/*
157	>	*  Find specified mode (depth/resolution) (or invalid_mode() if not found)
158	>	*/
159	>
160	>	vector<video_mode>::const_iterator monitor_desc::find_mode(uint16 apple_mode, uint32 id) const
161	>	{
162	>	vector<video_mode>::const_iterator i, end = modes.end();
163	>	for (i = modes.begin(); i != end; ++i) {
164	>	if (i->resolution_id == id && depth_to_apple_mode(i->depth) == apple_mode)
165		return i;
90	–	++i;
166		}
167		return i;
168		}
#	Line 97 | Line 172 | static vector<video_mode>::const_iterato
172		*  Find maximum supported depth for given resolution ID
173		*/
174
175	<	static video_depth max_depth_of_resolution(uint32 id)
175	>	video_depth monitor_desc::max_depth_of_resolution(uint32 id) const
176		{
177		video_depth m = VDEPTH_1BIT;
178	<	vector<video_mode>::const_iterator i = VideoModes.begin(), end = VideoModes.end();
179	<	while (i != end) {
178	>	vector<video_mode>::const_iterator i, end = modes.end();
179	>	for (i = modes.begin(); i != end; ++i) {
180		if (i->depth > m)
181		m = i->depth;
107	–	++i;
182		}
183		return m;
184		}
#	Line 114 | Line 188 | static video_depth max_depth_of_resoluti
188		*  Get X/Y size of specified resolution
189		*/
190
191	<	static void get_size_of_resolution(uint32 id, uint32 &x, uint32 &y)
191	>	void monitor_desc::get_size_of_resolution(uint32 id, uint32 &x, uint32 &y) const
192		{
193	<	vector<video_mode>::const_iterator i = VideoModes.begin(), end = VideoModes.end();
194	<	while (i != end) {
193	>	vector<video_mode>::const_iterator i, end = modes.end();
194	>	for (i = modes.begin(); i != end; ++i) {
195		if (i->resolution_id == id) {
196		x = i->x;
197		y = i->y;
198		return;
199		}
126	–	++i;
200		}
201	+	x = y = 0;
202		}
203
204
#	Line 132 | Line 206 | static void get_size_of_resolution(uint3
206		*  Set palette to 50% gray
207		*/
208
209	<	static void set_gray_palette(void)
209	>	void monitor_desc::set_gray_palette(void)
210		{
211		for (int i=0; i<256; i++) {
212	<	VidLocal.palette[i * 3 + 0] = 127;
213	<	VidLocal.palette[i * 3 + 1] = 127;
214	<	VidLocal.palette[i * 3 + 2] = 127;
212	>	palette[i * 3 + 0] = 127;
213	>	palette[i * 3 + 1] = 127;
214	>	palette[i * 3 + 2] = 127;
215		}
216	<	video_set_palette(VidLocal.palette);
216	>	set_palette(palette, 256);
217		}
218
219
#	Line 147 | Line 221 | static void set_gray_palette(void)
221		*  Load gamma-corrected black-to-white ramp to palette for direct-color mode
222		*/
223
224	<	static void load_ramp_palette(void)
224	>	void monitor_desc::load_ramp_palette(void)
225		{
226		// Find tables for gamma correction
227	<	uint8 *red_gamma, *green_gamma, *blue_gamma;
227	>	uint8 *red_gamma = NULL, *green_gamma = NULL, *blue_gamma = NULL;
228		bool have_gamma = false;
229		int data_width = 0;
230	<	if (VidLocal.gamma_table) {
231	<	uint32 table = VidLocal.gamma_table;
230	>	if (gamma_table) {
231	>	uint32 table = gamma_table;
232		red_gamma = Mac2HostAddr(table + gFormulaData + ReadMacInt16(table + gFormulaSize));
233		int chan_cnt = ReadMacInt16(table + gChanCnt);
234		if (chan_cnt == 1)
#	Line 168 | Line 242 | static void load_ramp_palette(void)
242		have_gamma = true;
243		}
244
245	<	int num = (VidLocal.desc->mode.depth == VDEPTH_16BIT ? 32 : 256);
246	<	uint8 *p = VidLocal.palette;
245	>	int num = (current_mode->depth == VDEPTH_16BIT ? 32 : 256);
246	>	uint8 *p = palette;
247		for (int i=0; i<num; i++) {
248		uint8 red = (i * 256 / num), green = red, blue = red;
249		if (have_gamma) {
#	Line 182 | Line 256 | static void load_ramp_palette(void)
256		*p++ = blue;
257		}
258
259	<	video_set_palette(VidLocal.palette);
259	>	set_palette(palette, num);
260		}
261
262
#	Line 190 | Line 264 | static void load_ramp_palette(void)
264		*  Allocate gamma table of specified size
265		*/
266
267	<	static bool allocate_gamma_table(int size)
267	>	bool monitor_desc::allocate_gamma_table(int size)
268		{
269		M68kRegisters r;
270
271	<	if (size > VidLocal.alloc_gamma_table_size) {
272	<	if (VidLocal.gamma_table) {
273	<	r.a[0] = VidLocal.gamma_table;
271	>	if (size > alloc_gamma_table_size) {
272	>	if (gamma_table) {
273	>	r.a[0] = gamma_table;
274		Execute68kTrap(0xa01f, &r);     // DisposePtr()
275	<	VidLocal.gamma_table = 0;
276	<	VidLocal.alloc_gamma_table_size = 0;
275	>	gamma_table = 0;
276	>	alloc_gamma_table_size = 0;
277		}
278		r.d[0] = size;
279		Execute68kTrap(0xa71e, &r);     // NewPtrSysClear()
280		if (r.a[0] == 0)
281		return false;
282	<	VidLocal.gamma_table = r.a[0];
283	<	VidLocal.alloc_gamma_table_size = size;
282	>	gamma_table = r.a[0];
283	>	alloc_gamma_table_size = size;
284		}
285		return true;
286		}
#	Line 216 | Line 290 | static bool allocate_gamma_table(int siz
290		*  Set gamma table (0 = build linear ramp)
291		*/
292
293	<	static bool set_gamma_table(uint32 user_table)
293	>	bool monitor_desc::set_gamma_table(uint32 user_table)
294		{
295		if (user_table == 0) { // Build linear ramp, 256 entries
296
297		// Allocate new table, if necessary
298		if (!allocate_gamma_table(SIZEOF_GammaTbl + 256))
299		return memFullErr;
226	–	uint32 table = VidLocal.gamma_table;
300
301		// Initialize header
302	<	WriteMacInt16(table + gVersion, 0);
303	<	WriteMacInt16(table + gType, 0);
304	<	WriteMacInt16(table + gFormulaSize, 0);
305	<	WriteMacInt16(table + gChanCnt, 1);
306	<	WriteMacInt16(table + gDataCnt, 256);
307	<	WriteMacInt16(table + gDataWidth, 8);
302	>	WriteMacInt16(gamma_table + gVersion, 0);
303	>	WriteMacInt16(gamma_table + gType, 0);
304	>	WriteMacInt16(gamma_table + gFormulaSize, 0);
305	>	WriteMacInt16(gamma_table + gChanCnt, 1);
306	>	WriteMacInt16(gamma_table + gDataCnt, 256);
307	>	WriteMacInt16(gamma_table + gDataWidth, 8);
308
309		// Build ramp
310	<	uint32 p = table + gFormulaData;
310	>	uint32 p = gamma_table + gFormulaData;
311		for (int i=0; i<256; i++)
312		WriteMacInt8(p + i, i);
313
#	Line 259 | Line 332 | static bool set_gamma_table(uint32 user_
332		int size = SIZEOF_GammaTbl + ReadMacInt16(user_table + gFormulaSize) + chan_cnt * data_cnt;
333		if (!allocate_gamma_table(size))
334		return memFullErr;
262	–	uint32 table = VidLocal.gamma_table;
335
336		// Copy table
337	<	Mac2Mac_memcpy(table, user_table, size);
337	>	Mac2Mac_memcpy(gamma_table, user_table, size);
338		}
339
340	<	if (IsDirectMode(VidLocal.current_mode))
340	>	if (IsDirectMode(*current_mode))
341		load_ramp_palette();
342
343		return true;
#	Line 273 | Line 345 | static bool set_gamma_table(uint32 user_
345
346
347		/*
348	<	*  Driver Open() routine
348	>	*  Switch video mode
349		*/
350
351	<	int16 VideoDriverOpen(uint32 pb, uint32 dce)
351	>	void monitor_desc::switch_mode(vector<video_mode>::const_iterator it, uint32 param, uint32 dce)
352		{
353	<	D(bug("VideoDriverOpen\n"));
353	>	const video_mode &mode = *it;
354	>
355	>	// Switch mode
356	>	set_gray_palette();
357	>	current_mode = it;
358	>	switch_to_current_mode();
359
360	+	// Update variables
361	+	current_apple_mode = depth_to_apple_mode(mode.depth);
362	+	current_id = mode.resolution_id;
363	+
364	+	M68kRegisters r;
365	+	r.a[0] = slot_param;
366	+
367	+	// Find functional sResource for this display
368	+	WriteMacInt8(slot_param + spSlot, ReadMacInt8(dce + dCtlSlot));
369	+	WriteMacInt8(slot_param + spID, ReadMacInt8(dce + dCtlSlotId));
370	+	WriteMacInt8(slot_param + spExtDev, 0);
371	+	r.d[0] = 0x0016;
372	+	Execute68kTrap(0xa06e, &r);     // SRsrcInfo()
373	+	uint32 rsrc = ReadMacInt32(slot_param + spPointer);
374	+
375	+	// Patch minorBase (otherwise rebooting won't work)
376	+	WriteMacInt8(slot_param + spID, 0x0a); // minorBase
377	+	r.d[0] = 0x0006;
378	+	Execute68kTrap(0xa06e, &r); // SFindStruct()
379	+	uint32 minor_base = ReadMacInt32(slot_param + spPointer) - ROMBaseMac;
380	+	ROMBaseHost[minor_base + 0] = mac_frame_base >> 24;
381	+	ROMBaseHost[minor_base + 1] = mac_frame_base >> 16;
382	+	ROMBaseHost[minor_base + 2] = mac_frame_base >> 8;
383	+	ROMBaseHost[minor_base + 3] = mac_frame_base;
384	+
385	+	// Patch video mode parameter table
386	+	WriteMacInt32(slot_param + spPointer, rsrc);
387	+	WriteMacInt8(slot_param + spID, depth_to_apple_mode(mode.depth));
388	+	r.d[0] = 0x0006;
389	+	Execute68kTrap(0xa06e, &r); // SFindStruct()
390	+	WriteMacInt8(slot_param + spID, 0x01);
391	+	r.d[0] = 0x0006;
392	+	Execute68kTrap(0xa06e, &r); // SFindStruct()
393	+	uint32 p = ReadMacInt32(slot_param + spPointer) - ROMBaseMac;
394	+	ROMBaseHost[p +  8] = mode.bytes_per_row >> 8;
395	+	ROMBaseHost[p +  9] = mode.bytes_per_row;
396	+	ROMBaseHost[p + 14] = mode.y >> 8;
397	+	ROMBaseHost[p + 15] = mode.y;
398	+	ROMBaseHost[p + 16] = mode.x >> 8;
399	+	ROMBaseHost[p + 17] = mode.x;
400	+
401	+	// Recalculate slot ROM checksum
402	+	ChecksumSlotROM();
403	+
404	+	// Update sResource
405	+	WriteMacInt8(slot_param + spID, ReadMacInt8(dce + dCtlSlotId));
406	+	r.d[0] = 0x002b;
407	+	Execute68kTrap(0xa06e, &r); // SUpdateSRT()
408	+
409	+	// Update frame buffer base in DCE and param block
410	+	WriteMacInt32(dce + dCtlDevBase, mac_frame_base);
411	+	WriteMacInt32(param + csBaseAddr, mac_frame_base);
412	+
413	+	// Patch frame buffer base address for MacOS versions <7.6
414	+	if (!dm_present) { // Only do this when no Display Manager seems to be present; otherwise, the screen will not get redrawn
415	+	D(bug("No Display Manager, patching frame buffer base\n"));
416	+	WriteMacInt32(0x824, mac_frame_base);           // ScrnBase
417	+	WriteMacInt32(0x898, mac_frame_base);           // CrsrBase
418	+	uint32 gdev = ReadMacInt32(0x8a4);                      // MainDevice
419	+	gdev = ReadMacInt32(gdev);
420	+	uint32 pmap = ReadMacInt32(gdev + 0x16);        // gdPMap
421	+	pmap = ReadMacInt32(pmap);
422	+	WriteMacInt32(pmap, mac_frame_base);            // baseAddr
423	+	}
424	+	}
425	+
426	+
427	+	/*
428	+	*  Driver Open() routine
429	+	*/
430	+
431	+	int16 monitor_desc::driver_open(void)
432	+	{
433		// This shouldn't happen unless the platform-specific video code is broken
434	<	if (VideoModes.empty())
434	>	if (modes.empty())
435		fprintf(stderr, "No valid video modes found (broken video driver?)\n");
436
437		// Init local variables
438	<	VidLocal.desc = &VideoMonitor;
439	<	VidLocal.luminance_mapping = false;
440	<	VidLocal.interrupts_enabled = false;
441	<	VidLocal.current_mode = DepthToAppleMode(VidLocal.desc->mode.depth);
442	<	VidLocal.current_id = VidLocal.desc->mode.resolution_id;
293	<	VidLocal.preferred_mode = VidLocal.current_mode;
294	<	VidLocal.preferred_id = VidLocal.current_id;
438	>	luminance_mapping = false;
439	>	interrupts_enabled = false;
440	>	current_apple_mode = preferred_apple_mode = depth_to_apple_mode(current_mode->depth);
441	>	current_id = preferred_id = current_mode->resolution_id;
442	>	dm_present = false;
443
444		// Allocate Slot Manager parameter block in Mac RAM
445		M68kRegisters r;
#	Line 299 | Line 447 | int16 VideoDriverOpen(uint32 pb, uint32
447		Execute68kTrap(0xa71e, &r);     // NewPtrSysClear()
448		if (r.a[0] == 0)
449		return memFullErr;
450	<	VidLocal.slot_param = r.a[0];
451	<	D(bug("SPBlock at %08x\n", VidLocal.slot_param));
450	>	slot_param = r.a[0];
451	>	D(bug("SPBlock at %08x\n", slot_param));
452
453		// Find and set default gamma table
454	<	VidLocal.gamma_table = 0;
455	<	VidLocal.alloc_gamma_table_size = 0;
454	>	gamma_table = 0;
455	>	alloc_gamma_table_size = 0;
456		set_gamma_table(0);
457
458		// Init color palette (solid gray)
#	Line 312 | Line 460 | int16 VideoDriverOpen(uint32 pb, uint32
460		return noErr;
461		}
462
463	+	int16 VideoDriverOpen(uint32 pb, uint32 dce)
464	+	{
465	+	uint8 slot_id = ReadMacInt8(dce + dCtlSlotId);
466	+	D(bug("VideoDriverOpen slot %02x\n", slot_id));
467	+
468	+	monitor_desc *m = find_monitor(slot_id);
469	+	if (m)
470	+	return m->driver_open();
471	+	else
472	+	return nsDrvErr;
473	+	}
474	+
475
476		/*
477		*  Driver Control() routine
478		*/
479
480	<	int16 VideoDriverControl(uint32 pb, uint32 dce)
480	>	int16 monitor_desc::driver_control(uint16 code, uint32 param, uint32 dce)
481		{
322	–	uint16 code = ReadMacInt16(pb + csCode);
323	–	uint32 param = ReadMacInt32(pb + csParam);
324	–	D(bug("VideoDriverControl %d\n", code));
482		switch (code) {
483
484		case cscSetMode: {              // Set color depth
#	Line 329 | Line 486 | int16 VideoDriverControl(uint32 pb, uint
486		D(bug(" SetMode %04x\n", mode));
487
488		// Set old base address in case the switch fails
489	<	WriteMacInt32(param + csBaseAddr, VidLocal.desc->mac_frame_base);
489	>	WriteMacInt32(param + csBaseAddr, mac_frame_base);
490
491		if (ReadMacInt16(param + csPage))
492		return paramErr;
493
494	<	if (mode != VidLocal.current_mode) {
495	<	vector<video_mode>::const_iterator i = find_mode(mode, VidLocal.current_id);
496	<	if (i == VideoModes.end())
494	>	if (mode != current_apple_mode) {
495	>	vector<video_mode>::const_iterator i = find_mode(mode, current_id);
496	>	if (i == invalid_mode())
497		return paramErr;
498	<	set_gray_palette();
342	<	video_switch_to_mode(*i);
343	<	VidLocal.current_mode = mode;
344	<	WriteMacInt32(param + csBaseAddr, VidLocal.desc->mac_frame_base);
345	<	WriteMacInt32(dce + dCtlDevBase, VidLocal.desc->mac_frame_base);
498	>	switch_mode(i, param, dce);
499		}
500	<	D(bug("  base %08x\n", VidLocal.desc->mac_frame_base));
500	>	D(bug("  base %08x\n", mac_frame_base));
501		return noErr;
502		}
503
504		case cscSetEntries:             // Set palette
505		case cscDirectSetEntries: {
506		D(bug(" (Direct)SetEntries table %08x, count %d, start %d\n", ReadMacInt32(param + csTable), ReadMacInt16(param + csCount), ReadMacInt16(param + csStart)));
507	<	bool is_direct = IsDirectMode(VidLocal.current_mode);
507	>	bool is_direct = IsDirectMode(*current_mode);
508		if (code == cscSetEntries && is_direct)
509		return controlErr;
510		if (code == cscDirectSetEntries && !is_direct)
#	Line 365 | Line 518 | int16 VideoDriverControl(uint32 pb, uint
518		return paramErr;
519
520		// Find tables for gamma correction
521	<	uint8 *red_gamma, *green_gamma, *blue_gamma;
521	>	uint8 *red_gamma = NULL, *green_gamma = NULL, *blue_gamma = NULL;
522		bool have_gamma = false;
523		int data_width = 0;
524	<	if (VidLocal.gamma_table) {
525	<	uint32 table = VidLocal.gamma_table;
526	<	red_gamma = Mac2HostAddr(table + gFormulaData + ReadMacInt16(table + gFormulaSize));
374	<	int chan_cnt = ReadMacInt16(table + gChanCnt);
524	>	if (gamma_table) {
525	>	red_gamma = Mac2HostAddr(gamma_table + gFormulaData + ReadMacInt16(gamma_table + gFormulaSize));
526	>	int chan_cnt = ReadMacInt16(gamma_table + gChanCnt);
527		if (chan_cnt == 1)
528		green_gamma = blue_gamma = red_gamma;
529		else {
530	<	int ofs = ReadMacInt16(table + gDataCnt);
530	>	int ofs = ReadMacInt16(gamma_table + gDataCnt);
531		green_gamma = red_gamma + ofs;
532		blue_gamma = green_gamma + ofs;
533		}
534	<	data_width = ReadMacInt16(table + gDataWidth);
534	>	data_width = ReadMacInt16(gamma_table + gDataWidth);
535		have_gamma = true;
536		}
537
538		// Convert palette
539		if (start == 0xffff) {  // Indexed
540		for (uint32 i=0; i<=count; i++) {
541	<	d_pal = VidLocal.palette + (ReadMacInt16(s_pal) & 0xff) * 3;
541	>	d_pal = palette + (ReadMacInt16(s_pal) & 0xff) * 3;
542		uint8 red = (uint16)ReadMacInt16(s_pal + 2) >> 8;
543		uint8 green = (uint16)ReadMacInt16(s_pal + 4) >> 8;
544		uint8 blue = (uint16)ReadMacInt16(s_pal + 6) >> 8;
545	<	if (VidLocal.luminance_mapping && !is_direct)
545	>	if (luminance_mapping && !is_direct)
546		red = green = blue = (red * 0x4ccc + green * 0x970a + blue * 0x1c29) >> 16;
547		if (have_gamma) {
548		red = red_gamma[red >> (8 - data_width)];
#	Line 405 | Line 557 | int16 VideoDriverControl(uint32 pb, uint
557		} else {                                // Sequential
558		if (start + count > 255)
559		return paramErr;
560	<	d_pal = VidLocal.palette + start * 3;
560	>	d_pal = palette + start * 3;
561		for (uint32 i=0; i<=count; i++) {
562		uint8 red = (uint16)ReadMacInt16(s_pal + 2) >> 8;
563		uint8 green = (uint16)ReadMacInt16(s_pal + 4) >> 8;
564		uint8 blue = (uint16)ReadMacInt16(s_pal + 6) >> 8;
565	<	if (VidLocal.luminance_mapping && !is_direct)
565	>	if (luminance_mapping && !is_direct)
566		red = green = blue = (red * 0x4ccc + green * 0x970a + blue * 0x1c29) >> 16;
567		if (have_gamma) {
568		red = red_gamma[red >> (8 - data_width)];
#	Line 423 | Line 575 | int16 VideoDriverControl(uint32 pb, uint
575		s_pal += 8;
576		}
577		}
578	<	video_set_palette(VidLocal.palette);
578	>	set_palette(palette, palette_size(current_mode->depth));
579		return noErr;
580		}
581
#	Line 446 | Line 598 | int16 VideoDriverControl(uint32 pb, uint
598		0xffff0000,             // 16 bpp
599		0xffffffff              // 32 bpp
600		};
601	<	uint32 p = VidLocal.desc->mac_frame_base;
602	<	uint32 pat = pattern[VidLocal.desc->mode.depth];
603	<	bool invert = (VidLocal.desc->mode.depth == VDEPTH_32BIT);
604	<	for (uint32 y=0; y<VidLocal.desc->mode.y; y++) {
605	<	for (uint32 x=0; x<VidLocal.desc->mode.bytes_per_row; x+=4) {
601	>	uint32 p = mac_frame_base;
602	>	uint32 pat = pattern[current_mode->depth];
603	>	bool invert = (current_mode->depth == VDEPTH_32BIT);
604	>	for (uint32 y=0; y<current_mode->y; y++) {
605	>	for (uint32 x=0; x<current_mode->bytes_per_row; x+=4) {
606		WriteMacInt32(p + x, pat);
607		if (invert)
608		pat = ~pat;
609		}
610	<	p += VidLocal.desc->mode.bytes_per_row;
610	>	p += current_mode->bytes_per_row;
611		pat = ~pat;
612		}
613
614	<	if (IsDirectMode(VidLocal.current_mode))
614	>	if (IsDirectMode(*current_mode))
615		load_ramp_palette();
616
617		return noErr;
#	Line 467 | Line 619 | int16 VideoDriverControl(uint32 pb, uint
619
620		case cscSetGray:                // Enable/disable luminance mapping
621		D(bug(" SetGray %02x\n", ReadMacInt8(param + csMode)));
622	<	VidLocal.luminance_mapping = ReadMacInt8(param + csMode);
622	>	luminance_mapping = ReadMacInt8(param + csMode);
623		return noErr;
624
625		case cscSetInterrupt:   // Enable/disable VBL
626		D(bug(" SetInterrupt %02x\n", ReadMacInt8(param + csMode)));
627	<	VidLocal.interrupts_enabled = (ReadMacInt8(param + csMode) == 0);
627	>	interrupts_enabled = (ReadMacInt8(param + csMode) == 0);
628		return noErr;
629
630		case cscSetDefaultMode: { // Set default color depth
631	<	uint16 mode = ReadMacInt16(param + csMode);
632	<	D(bug(" SetDefaultMode %04x\n", mode));
633	<	VidLocal.preferred_mode = mode;
631	>	uint16 mode = ReadMacInt8(param + csMode);
632	>	D(bug(" SetDefaultMode %02x\n", mode));
633	>	preferred_apple_mode = mode;
634		return noErr;
635		}
636
#	Line 488 | Line 640 | int16 VideoDriverControl(uint32 pb, uint
640		D(bug(" SwitchMode %04x, %08x\n", mode, id));
641
642		// Set old base address in case the switch fails
643	<	WriteMacInt32(param + csBaseAddr, VidLocal.desc->mac_frame_base);
643	>	WriteMacInt32(param + csBaseAddr, mac_frame_base);
644
645		if (ReadMacInt16(param + csPage))
646		return paramErr;
647
648	<	if (mode != VidLocal.current_mode || id != VidLocal.current_id) {
648	>	if (mode != current_apple_mode || id != current_id) {
649		vector<video_mode>::const_iterator i = find_mode(mode, id);
650	<	if (i == VideoModes.end())
650	>	if (i == invalid_mode())
651		return paramErr;
652	<	set_gray_palette();
501	<	video_switch_to_mode(*i);
502	<	VidLocal.current_mode = mode;
503	<	VidLocal.current_id = id;
504	<	uint32 frame_base = VidLocal.desc->mac_frame_base;
505	<	WriteMacInt32(param + csBaseAddr, frame_base);
506	<
507	<	M68kRegisters r;
508	<	uint32 sp = VidLocal.slot_param;
509	<	r.a[0] = sp;
510	<
511	<	// Find functional sResource for this display
512	<	WriteMacInt8(sp + spSlot, ReadMacInt8(dce + dCtlSlot));
513	<	WriteMacInt8(sp + spID, ReadMacInt8(dce + dCtlSlotId));
514	<	WriteMacInt8(sp + spExtDev, 0);
515	<	r.d[0] = 0x0016;
516	<	Execute68kTrap(0xa06e, &r);     // SRsrcInfo()
517	<	uint32 rsrc = ReadMacInt32(sp + spPointer);
518	<
519	<	// Patch minorBase (otherwise rebooting won't work)
520	<	WriteMacInt8(sp + spID, 0x0a); // minorBase
521	<	r.d[0] = 0x0006;
522	<	Execute68kTrap(0xa06e, &r); // SFindStruct()
523	<	uint32 minor_base = ReadMacInt32(sp + spPointer) - ROMBaseMac;
524	<	ROMBaseHost[minor_base + 0] = frame_base >> 24;
525	<	ROMBaseHost[minor_base + 1] = frame_base >> 16;
526	<	ROMBaseHost[minor_base + 2] = frame_base >> 8;
527	<	ROMBaseHost[minor_base + 3] = frame_base;
528	<
529	<	// Patch video mode parameter table
530	<	WriteMacInt32(sp + spPointer, rsrc);
531	<	WriteMacInt8(sp + spID, mode);
532	<	r.d[0] = 0x0006;
533	<	Execute68kTrap(0xa06e, &r); // SFindStruct()
534	<	WriteMacInt8(sp + spID, 0x01);
535	<	r.d[0] = 0x0006;
536	<	Execute68kTrap(0xa06e, &r); // SFindStruct()
537	<	uint32 p = ReadMacInt32(sp + spPointer) - ROMBaseMac;
538	<	ROMBaseHost[p +  8] = i->bytes_per_row >> 8;
539	<	ROMBaseHost[p +  9] = i->bytes_per_row;
540	<	ROMBaseHost[p + 14] = i->y >> 8;
541	<	ROMBaseHost[p + 15] = i->y;
542	<	ROMBaseHost[p + 16] = i->x >> 8;
543	<	ROMBaseHost[p + 17] = i->x;
544	<
545	<	// Recalculate slot ROM checksum
546	<	ChecksumSlotROM();
547	<
548	<	// Update sResource
549	<	WriteMacInt8(sp + spID, ReadMacInt8(dce + dCtlSlotId));
550	<	r.d[0] = 0x002b;
551	<	Execute68kTrap(0xa06e, &r); // SUpdateSRT()
552	<
553	<	// Update frame buffer base in DCE
554	<	WriteMacInt32(dce + dCtlDevBase, frame_base);
652	>	switch_mode(i, param, dce);
653		}
654	<	D(bug("  base %08x\n", VidLocal.desc->mac_frame_base));
654	>	D(bug("  base %08x\n", mac_frame_base));
655		return noErr;
656		}
657
#	Line 561 | Line 659 | int16 VideoDriverControl(uint32 pb, uint
659		uint16 mode = ReadMacInt16(param + csMode);
660		uint32 id = ReadMacInt32(param + csData);
661		D(bug(" SavePreferredConfiguration %04x, %08x\n", mode, id));
662	<	VidLocal.preferred_mode = mode;
663	<	VidLocal.preferred_id = id;
662	>	preferred_apple_mode = mode;
663	>	preferred_id = id;
664		return noErr;
665		}
666
#	Line 572 | Line 670 | int16 VideoDriverControl(uint32 pb, uint
670		}
671		}
672
673	+	int16 VideoDriverControl(uint32 pb, uint32 dce)
674	+	{
675	+	uint8 slot_id = ReadMacInt8(dce + dCtlSlotId);
676	+	uint16 code = ReadMacInt16(pb + csCode);
677	+	uint32 param = ReadMacInt32(pb + csParam);
678	+	D(bug("VideoDriverControl slot %02x, code %d\n", slot_id, code));
679	+
680	+	monitor_desc *m = find_monitor(slot_id);
681	+	if (m)
682	+	return m->driver_control(code, param, dce);
683	+	else
684	+	return nsDrvErr;
685	+	}
686	+
687
688		/*
689		*  Driver Status() routine
690		*/
691
692	<	int16 VideoDriverStatus(uint32 pb, uint32 dce)
692	>	int16 monitor_desc::driver_status(uint16 code, uint32 param)
693		{
582	–	uint16 code = ReadMacInt16(pb + csCode);
583	–	uint32 param = ReadMacInt32(pb + csParam);
584	–	D(bug("VideoDriverStatus %d\n", code));
694		switch (code) {
695
696		case cscGetMode:                        // Get current color depth
697	<	D(bug(" GetMode -> %04x, base %08x\n", VidLocal.current_mode, VidLocal.desc->mac_frame_base));
698	<	WriteMacInt16(param + csMode, VidLocal.current_mode);
697	>	D(bug(" GetMode -> %04x, base %08x\n", current_apple_mode, mac_frame_base));
698	>	WriteMacInt16(param + csMode, current_apple_mode);
699		WriteMacInt16(param + csPage, 0);
700	<	WriteMacInt32(param + csBaseAddr, VidLocal.desc->mac_frame_base);
700	>	WriteMacInt32(param + csBaseAddr, mac_frame_base);
701		return noErr;
702
703		case cscGetEntries: {           // Read palette
#	Line 603 | Line 712 | int16 VideoDriverStatus(uint32 pb, uint3
712
713		if (start == 0xffff) {  // Indexed
714		for (uint32 i=0; i<=count; i++) {
715	<	s_pal = VidLocal.palette + (ReadMacInt16(d_pal) & 0xff) * 3;
715	>	s_pal = palette + (ReadMacInt16(d_pal) & 0xff) * 3;
716		uint8 red = *s_pal++;
717		uint8 green = *s_pal++;
718		uint8 blue = *s_pal++;
#	Line 615 | Line 724 | int16 VideoDriverStatus(uint32 pb, uint3
724		} else {                                // Sequential
725		if (start + count > 255)
726		return paramErr;
727	<	s_pal = VidLocal.palette + start * 3;
727	>	s_pal = palette + start * 3;
728		for (uint32 i=0; i<=count; i++) {
729		uint8 red = *s_pal++;
730		uint8 green = *s_pal++;
#	Line 635 | Line 744 | int16 VideoDriverStatus(uint32 pb, uint3
744		return noErr;
745
746		case cscGetBaseAddress:         // Get page base address
747	<	D(bug(" GetBaseAddress -> %08x\n", VidLocal.desc->mac_frame_base));
748	<	WriteMacInt32(param + csBaseAddr, VidLocal.desc->mac_frame_base);
747	>	D(bug(" GetBaseAddress -> %08x\n", mac_frame_base));
748	>	WriteMacInt32(param + csBaseAddr, mac_frame_base);
749		if (ReadMacInt16(param + csPage))
750		return paramErr;
751		else
752		return noErr;
753
754		case cscGetGray:                        // Get luminance mapping flag
755	<	D(bug(" GetGray -> %d\n", VidLocal.luminance_mapping));
756	<	WriteMacInt16(param, VidLocal.luminance_mapping ? 0x0100 : 0);
755	>	D(bug(" GetGray -> %d\n", luminance_mapping));
756	>	WriteMacInt8(param, luminance_mapping ? 1 : 0);
757		return noErr;
758
759		case cscGetInterrupt:           // Get interrupt disable flag
760	<	D(bug(" GetInterrupt -> %d\n", VidLocal.interrupts_enabled));
761	<	WriteMacInt16(param, VidLocal.interrupts_enabled ? 0 : 0x0100);
760	>	D(bug(" GetInterrupt -> %d\n", interrupts_enabled));
761	>	WriteMacInt8(param, interrupts_enabled ? 0 : 1);
762		return noErr;
763
764		case cscGetGamma:
765	<	D(bug(" GetGamma -> %08x\n", VidLocal.gamma_table));
766	<	WriteMacInt32(param + csGTable, VidLocal.gamma_table);
765	>	D(bug(" GetGamma -> %08x\n", gamma_table));
766	>	WriteMacInt32(param + csGTable, gamma_table);
767		return noErr;
768
769		case cscGetDefaultMode:         // Get default color depth
770	<	D(bug(" GetDefaultMode -> %04x\n", VidLocal.preferred_mode));
771	<	WriteMacInt16(param + csMode, VidLocal.preferred_mode);
770	>	D(bug(" GetDefaultMode -> %02x\n", preferred_apple_mode));
771	>	WriteMacInt8(param + csMode, preferred_apple_mode);
772		return noErr;
773
774		case cscGetCurrentMode:         // Get current video mode (depth and resolution)
775	<	D(bug(" GetCurMode -> %04x/%08x, base %08x\n", VidLocal.current_mode, VidLocal.current_id, VidLocal.desc->mac_frame_base));
776	<	WriteMacInt16(param + csMode, VidLocal.current_mode);
777	<	WriteMacInt32(param + csData, VidLocal.current_id);
775	>	D(bug(" GetCurMode -> %04x/%08x, base %08x\n", current_apple_mode, current_id, mac_frame_base));
776	>	WriteMacInt16(param + csMode, current_apple_mode);
777	>	WriteMacInt32(param + csData, current_id);
778		WriteMacInt16(param + csPage, 0);
779	<	WriteMacInt32(param + csBaseAddr, VidLocal.desc->mac_frame_base);
779	>	WriteMacInt32(param + csBaseAddr, mac_frame_base);
780		return noErr;
781
782		case cscGetConnection:          // Get monitor information
#	Line 688 | Line 797 | int16 VideoDriverStatus(uint32 pb, uint3
797		WriteMacInt32(param + csTimingFormat, FOURCC('d', 'e', 'c', 'l'));
798		WriteMacInt32(param + csTimingData, 0); // unknown
799		uint32 flags = 0xb; // mode valid, safe and shown in Monitors panel
800	<	if (id == VidLocal.preferred_id)
800	>	if (id == preferred_id)
801		flags |= 4; // default mode
802		WriteMacInt32(param + csTimingFlags, flags);
803		return noErr;
804		}
805
806		case cscGetModeBaseAddress:     // Get frame buffer base address
807	<	D(bug(" GetModeBaseAddress -> base %08x\n", VidLocal.desc->mac_frame_base));
808	<	WriteMacInt32(param + csBaseAddr, VidLocal.desc->mac_frame_base);
807	>	D(bug(" GetModeBaseAddress -> base %08x\n", mac_frame_base));
808	>	WriteMacInt32(param + csBaseAddr, mac_frame_base);
809		return noErr;
810
811		case cscGetPreferredConfiguration: // Get default video mode (depth and resolution)
812	<	D(bug(" GetPreferredConfiguration -> %04x/%08x\n", VidLocal.preferred_mode, VidLocal.preferred_id));
813	<	WriteMacInt16(param + csMode, VidLocal.preferred_mode);
814	<	WriteMacInt32(param + csData, VidLocal.preferred_id);
812	>	D(bug(" GetPreferredConfiguration -> %04x/%08x\n", preferred_apple_mode, preferred_id));
813	>	WriteMacInt16(param + csMode, preferred_apple_mode);
814	>	WriteMacInt32(param + csData, preferred_id);
815		return noErr;
816
817		case cscGetNextResolution: {    // Called iteratively to obtain a list of all supported resolutions
#	Line 712 | Line 821 | int16 VideoDriverStatus(uint32 pb, uint3
821		switch (id) {
822		case 0:
823		// Return current resolution
824	<	id = VidLocal.current_id;
824	>	id = current_id;
825		break;
826
827		case 0xfffffffe:
#	Line 742 | Line 851 | int16 VideoDriverStatus(uint32 pb, uint3
851		WriteMacInt32(param + csHorizontalPixels, x);
852		WriteMacInt32(param + csVerticalLines, y);
853		WriteMacInt32(param + csRefreshRate, 75 << 16);
854	<	WriteMacInt16(param + csMaxDepthMode, DepthToAppleMode(max_depth_of_resolution(id)));
854	>	WriteMacInt16(param + csMaxDepthMode, depth_to_apple_mode(max_depth_of_resolution(id)));
855	>	WriteMacInt32(param + csResolutionFlags, 0);
856		return noErr;
857		}
858
#	Line 750 | Line 860 | int16 VideoDriverStatus(uint32 pb, uint3
860		uint32 id = ReadMacInt32(param + csDisplayModeID);
861		uint16 mode = ReadMacInt16(param + csDepthMode);
862		D(bug(" GetVideoParameters %04x/%08x\n", mode, id));
863	+	dm_present = true;      // Display Manager seems to be present
864	+	D(bug("  Display Manager detected\n"));
865
866	<	vector<video_mode>::const_iterator i = VideoModes.begin(), end = VideoModes.end();
867	<	while (i != end) {
868	<	if (DepthToAppleMode(i->depth) == mode && i->resolution_id == id) {
866	>	vector<video_mode>::const_iterator i, end = modes.end();
867	>	for (i = modes.begin(); i != end; ++i) {
868	>	if (depth_to_apple_mode(i->depth) == mode && i->resolution_id == id) {
869		uint32 vp = ReadMacInt32(param + csVPBlockPtr);
870		WriteMacInt32(vp + vpBaseOffset, 0);
871		WriteMacInt16(vp + vpRowBytes, i->bytes_per_row);
#	Line 768 | Line 880 | int16 VideoDriverStatus(uint32 pb, uint3
880		WriteMacInt32(vp + vpVRes, 0x00480000);
881		uint32 pix_type, pix_size, cmp_count, cmp_size, dev_type;
882		switch (i->depth) {
771	–	case VDEPTH_1BIT:
772	–	pix_type = 0; pix_size = 1;
773	–	cmp_count = 1; cmp_size = 1;
774	–	dev_type = 0; // CLUT
775	–	break;
776	–	case VDEPTH_2BIT:
777	–	pix_type = 0; pix_size = 2;
778	–	cmp_count = 1; cmp_size = 2;
779	–	dev_type = 0; // CLUT
780	–	break;
781	–	case VDEPTH_4BIT:
782	–	pix_type = 0; pix_size = 4;
783	–	cmp_count = 1; cmp_size = 4;
784	–	dev_type = 0; // CLUT
785	–	break;
786	–	case VDEPTH_8BIT:
787	–	pix_type = 0; pix_size = 8;
788	–	cmp_count = 1; cmp_size = 8;
789	–	dev_type = 0; // CLUT
790	–	break;
883		case VDEPTH_16BIT:
884		pix_type = 0x10; pix_size = 16;
885		cmp_count = 3; cmp_size = 5;
#	Line 798 | Line 890 | int16 VideoDriverStatus(uint32 pb, uint3
890		cmp_count = 3; cmp_size = 8;
891		dev_type = 2; // direct
892		break;
893	+	default:
894	+	pix_type = 0; pix_size = 1 << i->depth;
895	+	cmp_count = 1; cmp_size = 1 << i->depth;
896	+	dev_type = 0; // CLUT
897	+	break;
898		}
899		WriteMacInt16(vp + vpPixelType, pix_type);
900		WriteMacInt16(vp + vpPixelSize, pix_size);
#	Line 807 | Line 904 | int16 VideoDriverStatus(uint32 pb, uint3
904		WriteMacInt32(param + csDeviceType, dev_type);
905		return noErr;
906		}
810	–	++i;
907		}
908		return paramErr; // specified resolution/depth not supported
909		}
910
911	+	case cscGetMultiConnect: {
912	+	uint32 conn = ReadMacInt32(param + csDisplayCountOrNumber);
913	+	D(bug(" GetMultiConnect %08x\n", conn));
914	+	if (conn == 0xffffffff) {       // Get number of connections
915	+	WriteMacInt32(param + csDisplayCountOrNumber, 1); // Single-headed
916	+	return noErr;
917	+	} else if (conn == 1) {         // Get information about first connection
918	+	WriteMacInt16(param + csConnectInfo + csDisplayType, 8);                // Modeless connection
919	+	WriteMacInt8(param + csConnectInfo + csConnectTaggedType, 0);
920	+	WriteMacInt8(param + csConnectInfo + csConnectTaggedData, 0);
921	+	WriteMacInt32(param + csConnectInfo + csConnectFlags, 0x43);    // All modes valid and safe, non-standard tagging
922	+	WriteMacInt32(param + csConnectInfo + csDisplayComponent, 0);
923	+	return noErr;
924	+	} else
925	+	return paramErr;
926	+	}
927	+
928		default:
929		printf("WARNING: Unknown VideoDriverStatus(%d)\n", code);
930		return statusErr;
931		}
932		}
933	+
934	+	int16 VideoDriverStatus(uint32 pb, uint32 dce)
935	+	{
936	+	uint8 slot_id = ReadMacInt8(dce + dCtlSlotId);
937	+	uint16 code = ReadMacInt16(pb + csCode);
938	+	uint32 param = ReadMacInt32(pb + csParam);
939	+	D(bug("VideoDriverStatus slot %02x, code %d\n", slot_id, code));
940	+
941	+	monitor_desc *m = find_monitor(slot_id);
942	+	if (m)
943	+	return m->driver_status(code, param);
944	+	else
945	+	return nsDrvErr;
946	+	}

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