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root/cebix/BasiliskII/src/video.cpp

Comparing BasiliskII/src/video.cpp (file contents):
Revision 1.6 by cebix, 2000-08-22T12:44:29Z vs.
Revision 1.16 by cebix, 2001-07-01T00:46:31Z

#	Line 1 | Line 1
1		/*
2		*  video.cpp - Video/graphics emulation
3		*
4	<	*  Basilisk II (C) 1997-2000 Christian Bauer
4	>	*  Basilisk II (C) 1997-2001 Christian Bauer
5		*  Portions (C) 1997-1999 Marc Hellwig
6		*
7		*  This program is free software; you can redistribute it and/or modify
#	Line 31 | Line 31
31		#include "cpu_emulation.h"
32		#include "main.h"
33		#include "macos_util.h"
34	+	#include "slot_rom.h"
35		#include "video.h"
36		#include "video_defs.h"
37
#	Line 38 | Line 39
39		#include "debug.h"
40
41
42	+	// List of supported video modes
43	+	std::vector<video_mode> VideoModes;
44	+
45		// Description of the main monitor
46	<	video_desc VideoMonitor;
46	>	monitor_desc VideoMonitor;
47
48		// Local variables (per monitor)
49		struct {
50	<	video_desc *desc;                       // Pointer to monitor description
50	>	monitor_desc *desc;                     // Pointer to description of monitor handled by this instance of the driver
51		uint8 palette[256 * 3];         // Color palette, 256 entries, RGB
52		bool luminance_mapping;         // Luminance mapping on/off
53		bool interrupts_enabled;        // VBL interrupts on/off
54	+	uint32 gamma_table;                     // Mac address of gamma table
55	+	int alloc_gamma_table_size;     // Allocated size of gamma table
56	+	uint16 current_mode;            // Currently selected depth/resolution
57	+	uint32 current_id;
58	+	uint16 preferred_mode;          // Preferred depth/resolution
59	+	uint32 preferred_id;
60	+	uint32 slot_param;                      // Mac address of Slot Manager parameter block
61		} VidLocal;
62
63
64		/*
65	+	*  Check whether specified resolution ID is one of the supported resolutions
66	+	*/
67	+
68	+	static bool has_resolution(uint32 id)
69	+	{
70	+	std::vector<video_mode>::const_iterator i = VideoModes.begin(), end = VideoModes.end();
71	+	while (i != end) {
72	+	if (i->resolution_id == id)
73	+	return true;
74	+	++i;
75	+	}
76	+	return false;
77	+	}
78	+
79	+
80	+	/*
81	+	*  Find specified mode (depth/resolution) (or VideoModes.end() if not found)
82	+	*/
83	+
84	+	static std::vector<video_mode>::const_iterator find_mode(uint16 mode, uint32 id)
85	+	{
86	+	std::vector<video_mode>::const_iterator i = VideoModes.begin(), end = VideoModes.end();
87	+	while (i != end) {
88	+	if (i->resolution_id == id && DepthToAppleMode(i->depth) == mode)
89	+	return i;
90	+	++i;
91	+	}
92	+	return i;
93	+	}
94	+
95	+
96	+	/*
97	+	*  Find maximum supported depth for given resolution ID
98	+	*/
99	+
100	+	static video_depth max_depth_of_resolution(uint32 id)
101	+	{
102	+	video_depth m = VDEPTH_1BIT;
103	+	std::vector<video_mode>::const_iterator i = VideoModes.begin(), end = VideoModes.end();
104	+	while (i != end) {
105	+	if (i->depth > m)
106	+	m = i->depth;
107	+	++i;
108	+	}
109	+	return m;
110	+	}
111	+
112	+
113	+	/*
114	+	*  Get X/Y size of specified resolution
115	+	*/
116	+
117	+	static void get_size_of_resolution(uint32 id, uint32 &x, uint32 &y)
118	+	{
119	+	std::vector<video_mode>::const_iterator i = VideoModes.begin(), end = VideoModes.end();
120	+	while (i != end) {
121	+	if (i->resolution_id == id) {
122	+	x = i->x;
123	+	y = i->y;
124	+	return;
125	+	}
126	+	++i;
127	+	}
128	+	}
129	+
130	+
131	+	/*
132	+	*  Set palette to 50% gray
133	+	*/
134	+
135	+	static void set_gray_palette(void)
136	+	{
137	+	for (int i=0; i<256; i++) {
138	+	VidLocal.palette[i * 3 + 0] = 127;
139	+	VidLocal.palette[i * 3 + 1] = 127;
140	+	VidLocal.palette[i * 3 + 2] = 127;
141	+	}
142	+	video_set_palette(VidLocal.palette);
143	+	}
144	+
145	+
146	+	/*
147	+	*  Load gamma-corrected black-to-white ramp to palette for direct-color mode
148	+	*/
149	+
150	+	static void load_ramp_palette(void)
151	+	{
152	+	// Find tables for gamma correction
153	+	uint8 *red_gamma, *green_gamma, *blue_gamma;
154	+	bool have_gamma = false;
155	+	int data_width = 0;
156	+	if (VidLocal.gamma_table) {
157	+	uint32 table = VidLocal.gamma_table;
158	+	red_gamma = Mac2HostAddr(table + gFormulaData + ReadMacInt16(table + gFormulaSize));
159	+	int chan_cnt = ReadMacInt16(table + gChanCnt);
160	+	if (chan_cnt == 1)
161	+	green_gamma = blue_gamma = red_gamma;
162	+	else {
163	+	int ofs = ReadMacInt16(table + gDataCnt);
164	+	green_gamma = red_gamma + ofs;
165	+	blue_gamma = green_gamma + ofs;
166	+	}
167	+	data_width = ReadMacInt16(table + gDataWidth);
168	+	have_gamma = true;
169	+	}
170	+
171	+	int num = (VidLocal.desc->mode.depth == VDEPTH_16BIT ? 32 : 256);
172	+	uint8 *p = VidLocal.palette;
173	+	for (int i=0; i<num; i++) {
174	+	uint8 red = (i * 256 / num), green = red, blue = red;
175	+	if (have_gamma) {
176	+	red = red_gamma[red >> (8 - data_width)];
177	+	green = green_gamma[green >> (8 - data_width)];
178	+	blue = blue_gamma[blue >> (8 - data_width)];
179	+	}
180	+	*p++ = red;
181	+	*p++ = green;
182	+	*p++ = blue;
183	+	}
184	+
185	+	video_set_palette(VidLocal.palette);
186	+	}
187	+
188	+
189	+	/*
190	+	*  Allocate gamma table of specified size
191	+	*/
192	+
193	+	static bool allocate_gamma_table(int size)
194	+	{
195	+	M68kRegisters r;
196	+
197	+	if (size > VidLocal.alloc_gamma_table_size) {
198	+	if (VidLocal.gamma_table) {
199	+	r.a[0] = VidLocal.gamma_table;
200	+	Execute68kTrap(0xa01f, &r);     // DisposePtr()
201	+	VidLocal.gamma_table = 0;
202	+	VidLocal.alloc_gamma_table_size = 0;
203	+	}
204	+	r.d[0] = size;
205	+	Execute68kTrap(0xa71e, &r);     // NewPtrSysClear()
206	+	if (r.a[0] == 0)
207	+	return false;
208	+	VidLocal.gamma_table = r.a[0];
209	+	VidLocal.alloc_gamma_table_size = size;
210	+	}
211	+	return true;
212	+	}
213	+
214	+
215	+	/*
216	+	*  Set gamma table (0 = build linear ramp)
217	+	*/
218	+
219	+	static bool set_gamma_table(uint32 user_table)
220	+	{
221	+	if (user_table == 0) { // Build linear ramp, 256 entries
222	+
223	+	// Allocate new table, if necessary
224	+	if (!allocate_gamma_table(SIZEOF_GammaTbl + 256))
225	+	return memFullErr;
226	+	uint32 table = VidLocal.gamma_table;
227	+
228	+	// Initialize header
229	+	WriteMacInt16(table + gVersion, 0);
230	+	WriteMacInt16(table + gType, 0);
231	+	WriteMacInt16(table + gFormulaSize, 0);
232	+	WriteMacInt16(table + gChanCnt, 1);
233	+	WriteMacInt16(table + gDataCnt, 256);
234	+	WriteMacInt16(table + gDataWidth, 8);
235	+
236	+	// Build ramp
237	+	uint32 p = table + gFormulaData;
238	+	for (int i=0; i<256; i++)
239	+	WriteMacInt8(p + i, i);
240	+
241	+	} else { // User-supplied gamma table
242	+
243	+	// Validate header
244	+	if (ReadMacInt16(user_table + gVersion))
245	+	return paramErr;
246	+	if (ReadMacInt16(user_table + gType))
247	+	return paramErr;
248	+	int chan_cnt = ReadMacInt16(user_table + gChanCnt);
249	+	if (chan_cnt != 1 && chan_cnt != 3)
250	+	return paramErr;
251	+	int data_width = ReadMacInt16(user_table + gDataWidth);
252	+	if (data_width > 8)
253	+	return paramErr;
254	+	int data_cnt = ReadMacInt16(user_table + gDataCnt);
255	+	if (data_cnt != (1 << data_width))
256	+	return paramErr;
257	+
258	+	// Allocate new table, if necessary
259	+	int size = SIZEOF_GammaTbl + ReadMacInt16(user_table + gFormulaSize) + chan_cnt * data_cnt;
260	+	if (!allocate_gamma_table(size))
261	+	return memFullErr;
262	+	uint32 table = VidLocal.gamma_table;
263	+
264	+	// Copy table
265	+	Mac2Mac_memcpy(table, user_table, size);
266	+	}
267	+
268	+	if (IsDirectMode(VidLocal.current_mode))
269	+	load_ramp_palette();
270	+
271	+	return true;
272	+	}
273	+
274	+
275	+	/*
276		*  Driver Open() routine
277		*/
278
#	Line 58 | Line 280 | int16 VideoDriverOpen(uint32 pb, uint32
280		{
281		D(bug("VideoDriverOpen\n"));
282
283	+	// This shouldn't happen unless the platform-specific video code is broken
284	+	if (VideoModes.empty())
285	+	fprintf(stderr, "No valid video modes found (broken video driver?)\n");
286	+
287		// Init local variables
288		VidLocal.desc = &VideoMonitor;
289		VidLocal.luminance_mapping = false;
290		VidLocal.interrupts_enabled = false;
291	+	VidLocal.current_mode = DepthToAppleMode(VidLocal.desc->mode.depth);
292	+	VidLocal.current_id = VidLocal.desc->mode.resolution_id;
293	+	VidLocal.preferred_mode = VidLocal.current_mode;
294	+	VidLocal.preferred_id = VidLocal.current_id;
295	+
296	+	// Allocate Slot Manager parameter block in Mac RAM
297	+	M68kRegisters r;
298	+	r.d[0] = SIZEOF_SPBlock;
299	+	Execute68kTrap(0xa71e, &r);     // NewPtrSysClear()
300	+	if (r.a[0] == 0)
301	+	return memFullErr;
302	+	VidLocal.slot_param = r.a[0];
303	+	D(bug("SPBlock at %08x\n", VidLocal.slot_param));
304	+
305	+	// Find and set default gamma table
306	+	VidLocal.gamma_table = 0;
307	+	VidLocal.alloc_gamma_table_size = 0;
308	+	set_gamma_table(0);
309
310		// Init color palette (solid gray)
311	<	if (!IsDirectMode(VidLocal.desc->mode)) {
68	<	for (int i=0; i<256; i++) {
69	<	VidLocal.palette[i * 3 + 0] = 127;
70	<	VidLocal.palette[i * 3 + 1] = 127;
71	<	VidLocal.palette[i * 3 + 2] = 127;
72	<	}
73	<	video_set_palette(VidLocal.palette);
74	<	}
311	>	set_gray_palette();
312		return noErr;
313		}
314
#	Line 87 | Line 324 | int16 VideoDriverControl(uint32 pb, uint
324		D(bug("VideoDriverControl %d\n", code));
325		switch (code) {
326
327	<	case cscSetMode:                // Set color depth
328	<	D(bug(" SetMode %04x\n", ReadMacInt16(param + csMode)));
327	>	case cscSetMode: {              // Set color depth
328	>	uint16 mode = ReadMacInt16(param + csMode);
329	>	D(bug(" SetMode %04x\n", mode));
330	>
331	>	// Set old base address in case the switch fails
332		WriteMacInt32(param + csBaseAddr, VidLocal.desc->mac_frame_base);
333	+
334	+	if (ReadMacInt16(param + csPage))
335	+	return paramErr;
336	+
337	+	if (mode != VidLocal.current_mode) {
338	+	std::vector<video_mode>::const_iterator i = find_mode(mode, VidLocal.current_id);
339	+	if (i == VideoModes.end())
340	+	return paramErr;
341	+	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);
346	+	}
347	+	D(bug("  base %08x\n", VidLocal.desc->mac_frame_base));
348		return noErr;
349	+	}
350
351	<	case cscSetEntries: {   // Set palette
352	<	D(bug(" SetEntries table %08lx, count %d, start %d\n", ReadMacInt32(param + csTable), ReadMacInt16(param + csCount), ReadMacInt16(param + csStart)));
353	<	if (IsDirectMode(VidLocal.desc->mode))
351	>	case cscSetEntries:             // Set palette
352	>	case cscDirectSetEntries: {
353	>	D(bug(" (Direct)SetEntries table %08x, count %d, start %d\n", ReadMacInt32(param + csTable), ReadMacInt16(param + csCount), ReadMacInt16(param + csStart)));
354	>	bool is_direct = IsDirectMode(VidLocal.current_mode);
355	>	if (code == cscSetEntries && is_direct)
356	>	return controlErr;
357	>	if (code == cscDirectSetEntries && !is_direct)
358		return controlErr;
359
360		uint32 s_pal = ReadMacInt32(param + csTable);   // Source palette
361		uint8 *d_pal;                                                                   // Destination palette
362	+	uint16 start = ReadMacInt16(param + csStart);
363		uint16 count = ReadMacInt16(param + csCount);
364	<	if (!s_pal || count > 255)
364	>	if (s_pal == 0 || count > 255)
365		return paramErr;
366
367	<	if (ReadMacInt16(param + csStart) == 0xffff) {  // Indexed
367	>	// Find tables for gamma correction
368	>	uint8 *red_gamma, *green_gamma, *blue_gamma;
369	>	bool have_gamma = false;
370	>	int data_width = 0;
371	>	if (VidLocal.gamma_table) {
372	>	uint32 table = VidLocal.gamma_table;
373	>	red_gamma = Mac2HostAddr(table + gFormulaData + ReadMacInt16(table + gFormulaSize));
374	>	int chan_cnt = ReadMacInt16(table + gChanCnt);
375	>	if (chan_cnt == 1)
376	>	green_gamma = blue_gamma = red_gamma;
377	>	else {
378	>	int ofs = ReadMacInt16(table + gDataCnt);
379	>	green_gamma = red_gamma + ofs;
380	>	blue_gamma = green_gamma + ofs;
381	>	}
382	>	data_width = ReadMacInt16(table + gDataWidth);
383	>	have_gamma = true;
384	>	}
385	>
386	>	// Convert palette
387	>	if (start == 0xffff) {  // Indexed
388		for (uint32 i=0; i<=count; i++) {
389	<	d_pal = VidLocal.palette + ReadMacInt16(s_pal) * 3;
389	>	d_pal = VidLocal.palette + (ReadMacInt16(s_pal) & 0xff) * 3;
390		uint8 red = (uint16)ReadMacInt16(s_pal + 2) >> 8;
391		uint8 green = (uint16)ReadMacInt16(s_pal + 4) >> 8;
392		uint8 blue = (uint16)ReadMacInt16(s_pal + 6) >> 8;
393	<	if (VidLocal.luminance_mapping)
393	>	if (VidLocal.luminance_mapping && !is_direct)
394		red = green = blue = (red * 0x4ccc + green * 0x970a + blue * 0x1c29) >> 16;
395	+	if (have_gamma) {
396	+	red = red_gamma[red >> (8 - data_width)];
397	+	green = green_gamma[green >> (8 - data_width)];
398	+	blue = blue_gamma[blue >> (8 - data_width)];
399	+	}
400		*d_pal++ = red;
401		*d_pal++ = green;
402		*d_pal++ = blue;
403		s_pal += 8;
404		}
405	<	} else {                                                                                // Sequential
406	<	d_pal = VidLocal.palette + ReadMacInt16(param + csStart) * 3;
405	>	} else {                                // Sequential
406	>	if (start + count > 255)
407	>	return paramErr;
408	>	d_pal = VidLocal.palette + start * 3;
409		for (uint32 i=0; i<=count; i++) {
410		uint8 red = (uint16)ReadMacInt16(s_pal + 2) >> 8;
411		uint8 green = (uint16)ReadMacInt16(s_pal + 4) >> 8;
412		uint8 blue = (uint16)ReadMacInt16(s_pal + 6) >> 8;
413	<	if (VidLocal.luminance_mapping)
413	>	if (VidLocal.luminance_mapping && !is_direct)
414		red = green = blue = (red * 0x4ccc + green * 0x970a + blue * 0x1c29) >> 16;
415	+	if (have_gamma) {
416	+	red = red_gamma[red >> (8 - data_width)];
417	+	green = green_gamma[green >> (8 - data_width)];
418	+	blue = blue_gamma[blue >> (8 - data_width)];
419	+	}
420		*d_pal++ = red;
421		*d_pal++ = green;
422		*d_pal++ = blue;
#	Line 134 | Line 427 | int16 VideoDriverControl(uint32 pb, uint
427		return noErr;
428		}
429
430	<	case cscSetGamma:               // Set gamma table
431	<	D(bug(" SetGamma\n"));
432	<	return noErr;
430	>	case cscSetGamma: {             // Set gamma table
431	>	uint32 user_table = ReadMacInt32(param + csGTable);
432	>	D(bug(" SetGamma %08x\n", user_table));
433	>	return set_gamma_table(user_table) ? noErr : memFullErr;
434	>	}
435
436		case cscGrayPage: {             // Fill page with dithered gray pattern
437		D(bug(" GrayPage %d\n", ReadMacInt16(param + csPage)));
#	Line 152 | Line 447 | int16 VideoDriverControl(uint32 pb, uint
447		0xffffffff              // 32 bpp
448		};
449		uint32 p = VidLocal.desc->mac_frame_base;
450	<	uint32 pat = pattern[VidLocal.desc->mode];
451	<	for (uint32 y=0; y<VidLocal.desc->y; y++) {
452	<	uint32 p2 = p;
453	<	for (uint32 x=0; x<VidLocal.desc->bytes_per_row / 4; x++) {
454	<	WriteMacInt32(p2, pat);
455	<	p2 += 4;
161	<	if (VidLocal.desc->mode == VMODE_32BIT)
450	>	uint32 pat = pattern[VidLocal.desc->mode.depth];
451	>	bool invert = (VidLocal.desc->mode.depth == VDEPTH_32BIT);
452	>	for (uint32 y=0; y<VidLocal.desc->mode.y; y++) {
453	>	for (uint32 x=0; x<VidLocal.desc->mode.bytes_per_row; x+=4) {
454	>	WriteMacInt32(p + x, pat);
455	>	if (invert)
456		pat = ~pat;
457		}
458	<	p += VidLocal.desc->bytes_per_row;
458	>	p += VidLocal.desc->mode.bytes_per_row;
459		pat = ~pat;
460		}
461	+
462	+	if (IsDirectMode(VidLocal.current_mode))
463	+	load_ramp_palette();
464	+
465		return noErr;
466		}
467
#	Line 172 | Line 470 | int16 VideoDriverControl(uint32 pb, uint
470		VidLocal.luminance_mapping = ReadMacInt8(param + csMode);
471		return noErr;
472
175	–	case cscSwitchMode:             // Switch video mode
176	–	D(bug(" SwitchMode %04x, %08lx\n", ReadMacInt16(param + csMode), ReadMacInt32(param + csData)));
177	–	WriteMacInt32(param + csBaseAddr, VidLocal.desc->mac_frame_base);
178	–	return noErr;
179	–
473		case cscSetInterrupt:   // Enable/disable VBL
474		D(bug(" SetInterrupt %02x\n", ReadMacInt8(param + csMode)));
475		VidLocal.interrupts_enabled = (ReadMacInt8(param + csMode) == 0);
476		return noErr;
477
478	+	case cscSetDefaultMode: { // Set default color depth
479	+	uint16 mode = ReadMacInt16(param + csMode);
480	+	D(bug(" SetDefaultMode %04x\n", mode));
481	+	VidLocal.preferred_mode = mode;
482	+	return noErr;
483	+	}
484	+
485	+	case cscSwitchMode: {   // Switch video mode (depth and resolution)
486	+	uint16 mode = ReadMacInt16(param + csMode);
487	+	uint32 id = ReadMacInt32(param + csData);
488	+	D(bug(" SwitchMode %04x, %08x\n", mode, id));
489	+
490	+	// Set old base address in case the switch fails
491	+	WriteMacInt32(param + csBaseAddr, VidLocal.desc->mac_frame_base);
492	+
493	+	if (ReadMacInt16(param + csPage))
494	+	return paramErr;
495	+
496	+	if (mode != VidLocal.current_mode || id != VidLocal.current_id) {
497	+	std::vector<video_mode>::const_iterator i = find_mode(mode, id);
498	+	if (i == VideoModes.end())
499	+	return paramErr;
500	+	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);
555	+	}
556	+	D(bug("  base %08x\n", VidLocal.desc->mac_frame_base));
557	+	return noErr;
558	+	}
559	+
560	+	case cscSavePreferredConfiguration: {
561	+	uint16 mode = ReadMacInt16(param + csMode);
562	+	uint32 id = ReadMacInt32(param + csData);
563	+	D(bug(" SavePreferredConfiguration %04x, %08x\n", mode, id));
564	+	VidLocal.preferred_mode = mode;
565	+	VidLocal.preferred_id = id;
566	+	return noErr;
567	+	}
568	+
569		default:
570		printf("WARNING: Unknown VideoDriverControl(%d)\n", code);
571		return controlErr;
#	Line 200 | Line 584 | int16 VideoDriverStatus(uint32 pb, uint3
584		D(bug("VideoDriverStatus %d\n", code));
585		switch (code) {
586
587	<	case cscGetPageCnt:                     // Get number of pages
588	<	D(bug(" GetPageCnt\n"));
587	>	case cscGetMode:                        // Get current color depth
588	>	D(bug(" GetMode -> %04x, base %08x\n", VidLocal.current_mode, VidLocal.desc->mac_frame_base));
589	>	WriteMacInt16(param + csMode, VidLocal.current_mode);
590	>	WriteMacInt16(param + csPage, 0);
591	>	WriteMacInt32(param + csBaseAddr, VidLocal.desc->mac_frame_base);
592	>	return noErr;
593	>
594	>	case cscGetEntries: {           // Read palette
595	>	D(bug(" GetEntries table %08x, count %d, start %d\n", ReadMacInt32(param + csTable), ReadMacInt16(param + csCount), ReadMacInt16(param + csStart)));
596	>
597	>	uint8 *s_pal;                                                                   // Source palette
598	>	uint32 d_pal = ReadMacInt32(param + csTable);   // Destination palette
599	>	uint16 start = ReadMacInt16(param + csStart);
600	>	uint16 count = ReadMacInt16(param + csCount);
601	>	if (d_pal == 0 || count > 255)
602	>	return paramErr;
603	>
604	>	if (start == 0xffff) {  // Indexed
605	>	for (uint32 i=0; i<=count; i++) {
606	>	s_pal = VidLocal.palette + (ReadMacInt16(d_pal) & 0xff) * 3;
607	>	uint8 red = *s_pal++;
608	>	uint8 green = *s_pal++;
609	>	uint8 blue = *s_pal++;
610	>	WriteMacInt16(d_pal + 2, red * 0x0101);
611	>	WriteMacInt16(d_pal + 4, green * 0x0101);
612	>	WriteMacInt16(d_pal + 6, blue * 0x0101);
613	>	d_pal += 8;
614	>	}
615	>	} else {                                // Sequential
616	>	if (start + count > 255)
617	>	return paramErr;
618	>	s_pal = VidLocal.palette + start * 3;
619	>	for (uint32 i=0; i<=count; i++) {
620	>	uint8 red = *s_pal++;
621	>	uint8 green = *s_pal++;
622	>	uint8 blue = *s_pal++;
623	>	WriteMacInt16(d_pal + 2, red * 0x0101);
624	>	WriteMacInt16(d_pal + 4, green * 0x0101);
625	>	WriteMacInt16(d_pal + 6, blue * 0x0101);
626	>	d_pal += 8;
627	>	}
628	>	}
629	>	return noErr;
630	>	}
631	>
632	>	case cscGetPages:                       // Get number of pages
633	>	D(bug(" GetPages -> 1\n"));
634		WriteMacInt16(param + csPage, 1);
635		return noErr;
636
637	<	case cscGetPageBase:            // Get page base address
638	<	D(bug(" GetPageBase\n"));
637	>	case cscGetBaseAddress:         // Get page base address
638	>	D(bug(" GetBaseAddress -> %08x\n", VidLocal.desc->mac_frame_base));
639		WriteMacInt32(param + csBaseAddr, VidLocal.desc->mac_frame_base);
640	<	return noErr;
640	>	if (ReadMacInt16(param + csPage))
641	>	return paramErr;
642	>	else
643	>	return noErr;
644
645		case cscGetGray:                        // Get luminance mapping flag
646	<	D(bug(" GetGray\n"));
647	<	WriteMacInt8(param + csMode, VidLocal.luminance_mapping ? 1 : 0);
646	>	D(bug(" GetGray -> %d\n", VidLocal.luminance_mapping));
647	>	WriteMacInt16(param, VidLocal.luminance_mapping ? 0x0100 : 0);
648		return noErr;
649
650		case cscGetInterrupt:           // Get interrupt disable flag
651	<	D(bug(" GetInterrupt\n"));
652	<	WriteMacInt8(param + csMode, VidLocal.interrupts_enabled ? 0 : 1);
651	>	D(bug(" GetInterrupt -> %d\n", VidLocal.interrupts_enabled));
652	>	WriteMacInt16(param, VidLocal.interrupts_enabled ? 0 : 0x0100);
653		return noErr;
654
655	<	case cscGetDefaultMode:         // Get default video mode
656	<	D(bug(" GetDefaultMode\n"));
657	<	WriteMacInt8(param + csMode, 0x80);
655	>	case cscGetGamma:
656	>	D(bug(" GetGamma -> %08x\n", VidLocal.gamma_table));
657	>	WriteMacInt32(param + csGTable, VidLocal.gamma_table);
658		return noErr;
659
660	<	case cscGetCurMode:                     // Get current video mode
661	<	D(bug(" GetCurMode\n"));
662	<	WriteMacInt16(param + csMode, 0x80);
663	<	WriteMacInt32(param + csData, 0x80);
660	>	case cscGetDefaultMode:         // Get default color depth
661	>	D(bug(" GetDefaultMode -> %04x\n", VidLocal.preferred_mode));
662	>	WriteMacInt16(param + csMode, VidLocal.preferred_mode);
663	>	return noErr;
664	>
665	>	case cscGetCurrentMode:         // Get current video mode (depth and resolution)
666	>	D(bug(" GetCurMode -> %04x/%08x, base %08x\n", VidLocal.current_mode, VidLocal.current_id, VidLocal.desc->mac_frame_base));
667	>	WriteMacInt16(param + csMode, VidLocal.current_mode);
668	>	WriteMacInt32(param + csData, VidLocal.current_id);
669		WriteMacInt16(param + csPage, 0);
670		WriteMacInt32(param + csBaseAddr, VidLocal.desc->mac_frame_base);
671		return noErr;
672
673		case cscGetConnection:          // Get monitor information
674		D(bug(" GetConnection\n"));
675	<	WriteMacInt16(param + csDisplayType, 6);                // 21" Multiscan
676	<	WriteMacInt8(param + csConnectTaggedType, 6);
677	<	WriteMacInt8(param + csConnectTaggedData, 0x23);
678	<	WriteMacInt32(param + csConnectFlags, 0x03);    // All modes valid and safe
675	>	WriteMacInt16(param + csDisplayType, 8);                // Modeless connection
676	>	WriteMacInt8(param + csConnectTaggedType, 0);
677	>	WriteMacInt8(param + csConnectTaggedData, 0);
678	>	WriteMacInt32(param + csConnectFlags, 0x43);    // All modes valid and safe, non-standard tagging
679		WriteMacInt32(param + csDisplayComponent, 0);
680		return noErr;
681
682	<	case cscGetModeTiming:          // Get video timing for mode
683	<	D(bug(" GetModeTiming mode %08lx\n", ReadMacInt32(param + csTimingMode)));
682	>	case cscGetModeTiming: {        // Get video timing for specified resolution
683	>	uint32 id = ReadMacInt32(param + csTimingMode);
684	>	D(bug(" GetModeTiming %08x\n", id));
685	>	if (!has_resolution(id))
686	>	return paramErr;
687	>
688		WriteMacInt32(param + csTimingFormat, FOURCC('d', 'e', 'c', 'l'));
689	<	WriteMacInt32(param + csTimingData, 220);               // 21" Multiscan
690	<	WriteMacInt32(param + csTimingFlags, 0x0f);             // Mode valid, safe, default and shown in Monitors panel
689	>	WriteMacInt32(param + csTimingData, 0); // unknown
690	>	uint32 flags = 0xb; // mode valid, safe and shown in Monitors panel
691	>	if (id == VidLocal.preferred_id)
692	>	flags |= 4; // default mode
693	>	WriteMacInt32(param + csTimingFlags, flags);
694		return noErr;
695	+	}
696
697		case cscGetModeBaseAddress:     // Get frame buffer base address
698	<	D(bug(" GetModeBaseAddress\n"));
699	<	WriteMacInt32(param + csBaseAddr, VidLocal.desc->mac_frame_base);       // Base address of video RAM for the current DisplayModeID and relative bit depth
698	>	D(bug(" GetModeBaseAddress -> base %08x\n", VidLocal.desc->mac_frame_base));
699	>	WriteMacInt32(param + csBaseAddr, VidLocal.desc->mac_frame_base);
700		return noErr;
701
702	<	case cscGetMode:                // REQUIRED for MacsBug
703	<	D(bug(" GetMode\n"));
704	<	WriteMacInt16(param + csPageMode, 0x80);
705	<	WriteMacInt32(param + csPageData, 0x80);        // Unused
706	<	WriteMacInt16(param + csPagePage, 0);   // Current display page
707	<	WriteMacInt32(param + csPageBaseAddr, VidLocal.desc->mac_frame_base);
702	>	case cscGetPreferredConfiguration: // Get default video mode (depth and resolution)
703	>	D(bug(" GetPreferredConfiguration -> %04x/%08x\n", VidLocal.preferred_mode, VidLocal.preferred_id));
704	>	WriteMacInt16(param + csMode, VidLocal.preferred_mode);
705	>	WriteMacInt32(param + csData, VidLocal.preferred_id);
706	>	return noErr;
707	>
708	>	case cscGetNextResolution: {    // Called iteratively to obtain a list of all supported resolutions
709	>	uint32 id = ReadMacInt32(param + csPreviousDisplayModeID);
710	>	D(bug(" GetNextResolution %08x\n", id));
711	>
712	>	switch (id) {
713	>	case 0:
714	>	// Return current resolution
715	>	id = VidLocal.current_id;
716	>	break;
717	>
718	>	case 0xfffffffe:
719	>	// Return first supported resolution
720	>	id = 0x80;
721	>	while (!has_resolution(id))
722	>	id++;
723	>	break;
724	>
725	>	default:
726	>	// Get next resolution
727	>	if (!has_resolution(id))
728	>	return paramErr;
729	>	id++;
730	>	while (!has_resolution(id) && id < 0x100)
731	>	id++;
732	>	if (id == 0x100) { // No more resolutions
733	>	WriteMacInt32(param + csRIDisplayModeID, 0xfffffffd);
734	>	return noErr;
735	>	}
736	>	break;
737	>	}
738	>
739	>	WriteMacInt32(param + csRIDisplayModeID, id);
740	>	uint32 x, y;
741	>	get_size_of_resolution(id, x, y);
742	>	WriteMacInt32(param + csHorizontalPixels, x);
743	>	WriteMacInt32(param + csVerticalLines, y);
744	>	WriteMacInt32(param + csRefreshRate, 75 << 16);
745	>	WriteMacInt16(param + csMaxDepthMode, DepthToAppleMode(max_depth_of_resolution(id)));
746		return noErr;
747	+	}
748	+
749	+	case cscGetVideoParameters: {   // Get information about specified resolution/depth
750	+	uint32 id = ReadMacInt32(param + csDisplayModeID);
751	+	uint16 mode = ReadMacInt16(param + csDepthMode);
752	+	D(bug(" GetVideoParameters %04x/%08x\n", mode, id));
753	+
754	+	std::vector<video_mode>::const_iterator i = VideoModes.begin(), end = VideoModes.end();
755	+	while (i != end) {
756	+	if (DepthToAppleMode(i->depth) == mode && i->resolution_id == id) {
757	+	uint32 vp = ReadMacInt32(param + csVPBlockPtr);
758	+	WriteMacInt32(vp + vpBaseOffset, 0);
759	+	WriteMacInt16(vp + vpRowBytes, i->bytes_per_row);
760	+	WriteMacInt16(vp + vpBounds, 0);
761	+	WriteMacInt16(vp + vpBounds + 2, 0);
762	+	WriteMacInt16(vp + vpBounds + 4, i->y);
763	+	WriteMacInt16(vp + vpBounds + 6, i->x);
764	+	WriteMacInt16(vp + vpVersion, 0);
765	+	WriteMacInt16(vp + vpPackType, 0);
766	+	WriteMacInt32(vp + vpPackSize, 0);
767	+	WriteMacInt32(vp + vpHRes, 0x00480000); // 72 dpi
768	+	WriteMacInt32(vp + vpVRes, 0x00480000);
769	+	uint32 pix_type, pix_size, cmp_count, cmp_size, dev_type;
770	+	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;
791	+	case VDEPTH_16BIT:
792	+	pix_type = 0x10; pix_size = 16;
793	+	cmp_count = 3; cmp_size = 5;
794	+	dev_type = 2; // direct
795	+	break;
796	+	case VDEPTH_32BIT:
797	+	pix_type = 0x10; pix_size = 32;
798	+	cmp_count = 3; cmp_size = 8;
799	+	dev_type = 2; // direct
800	+	break;
801	+	}
802	+	WriteMacInt16(vp + vpPixelType, pix_type);
803	+	WriteMacInt16(vp + vpPixelSize, pix_size);
804	+	WriteMacInt16(vp + vpCmpCount, cmp_count);
805	+	WriteMacInt16(vp + vpCmpSize, cmp_size);
806	+	WriteMacInt32(param + csPageCount, 1);
807	+	WriteMacInt32(param + csDeviceType, dev_type);
808	+	return noErr;
809	+	}
810	+	++i;
811	+	}
812	+	return paramErr; // specified resolution/depth not supported
813	+	}
814
815		default:
816		printf("WARNING: Unknown VideoDriverStatus(%d)\n", code);

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