ViewVC Help

View File | Revision Log | Show Annotations | Revision Graph | Root Listing

root/cebix/BasiliskII/src/video.cpp

Comparing BasiliskII/src/video.cpp (file contents):
Revision 1.1.1.1 by cebix, 1999-10-03T14:16:25Z vs.
Revision 1.20 by cebix, 2001-07-03T19:20:38Z

#	Line 1 | Line 1
1		/*
2		*  video.cpp - Video/graphics emulation
3		*
4	<	*  Basilisk II (C) 1997-1999 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	+	vector<video_mode> VideoModes;
44	+
45		// Description of the main monitor
46	<	video_desc VideoMonitor;
46	>	monitor_desc VideoMonitor;
47	>
48	>	// Depth code -> Apple mode mapping
49	>	uint16 apple_mode_for_depth[6];
50
51		// Local variables (per monitor)
52		struct {
53	<	video_desc *desc;                       // Pointer to monitor description
53	>	monitor_desc *desc;                     // Pointer to description of monitor handled by this instance of the driver
54		uint8 palette[256 * 3];         // Color palette, 256 entries, RGB
55		bool luminance_mapping;         // Luminance mapping on/off
56		bool interrupts_enabled;        // VBL interrupts on/off
57	+	bool dm_present;                        // We received a GetVideoParameters call, so the Display Manager seems to be present
58	+	uint32 gamma_table;                     // Mac address of gamma table
59	+	int alloc_gamma_table_size;     // Allocated size of gamma table
60	+	uint16 current_mode;            // Currently selected depth/resolution
61	+	uint32 current_id;
62	+	uint16 preferred_mode;          // Preferred depth/resolution
63	+	uint32 preferred_id;
64	+	uint32 slot_param;                      // Mac address of Slot Manager parameter block
65		} VidLocal;
66
67
68		/*
69	+	*  Initialize apple_mode_for_depth[] array from VideoModes list
70	+	*/
71	+
72	+	void video_init_depth_list(void)
73	+	{
74	+	uint16 mode = 0x80;
75	+	for (int depth = VDEPTH_1BIT; depth <= VDEPTH_32BIT; depth++) {
76	+	if (video_has_depth(video_depth(depth)))
77	+	apple_mode_for_depth[depth] = mode++;
78	+	else
79	+	apple_mode_for_depth[depth] = 0;
80	+	}
81	+	}
82	+
83	+
84	+	/*
85	+	*  Check whether a mode with the specified depth exists
86	+	*/
87	+
88	+	bool video_has_depth(video_depth depth)
89	+	{
90	+	vector<video_mode>::const_iterator i = VideoModes.begin(), end = VideoModes.end();
91	+	while (i != end) {
92	+	if (i->depth == depth)
93	+	return true;
94	+	++i;
95	+	}
96	+	return false;
97	+	}
98	+
99	+
100	+	/*
101	+	*  Check whether specified resolution ID is one of the supported resolutions
102	+	*/
103	+
104	+	static bool has_resolution(uint32 id)
105	+	{
106	+	vector<video_mode>::const_iterator i, end = VideoModes.end();
107	+	for (i = VideoModes.begin(); i != end; ++i) {
108	+	if (i->resolution_id == id)
109	+	return true;
110	+	}
111	+	return false;
112	+	}
113	+
114	+
115	+	/*
116	+	*  Find specified mode (depth/resolution) (or VideoModes.end() if not found)
117	+	*/
118	+
119	+	static vector<video_mode>::const_iterator find_mode(uint16 mode, uint32 id)
120	+	{
121	+	vector<video_mode>::const_iterator i, end = VideoModes.end();
122	+	for (i = VideoModes.begin(); i != end; ++i) {
123	+	if (i->resolution_id == id && DepthToAppleMode(i->depth) == mode)
124	+	return i;
125	+	}
126	+	return i;
127	+	}
128	+
129	+
130	+	/*
131	+	*  Find maximum supported depth for given resolution ID
132	+	*/
133	+
134	+	static video_depth max_depth_of_resolution(uint32 id)
135	+	{
136	+	video_depth m = VDEPTH_1BIT;
137	+	vector<video_mode>::const_iterator i, end = VideoModes.end();
138	+	for (i = VideoModes.begin(); i != end; ++i) {
139	+	if (i->depth > m)
140	+	m = i->depth;
141	+	}
142	+	return m;
143	+	}
144	+
145	+
146	+	/*
147	+	*  Get X/Y size of specified resolution
148	+	*/
149	+
150	+	static void get_size_of_resolution(uint32 id, uint32 &x, uint32 &y)
151	+	{
152	+	vector<video_mode>::const_iterator i, end = VideoModes.end();
153	+	for (i = VideoModes.begin(); i != end; ++i) {
154	+	if (i->resolution_id == id) {
155	+	x = i->x;
156	+	y = i->y;
157	+	return;
158	+	}
159	+	}
160	+	x = y = 0;
161	+	}
162	+
163	+
164	+	/*
165	+	*  Get bytes-per-row value for specified resolution/depth
166	+	*/
167	+
168	+	uint32 video_bytes_per_row(video_depth depth, uint32 id)
169	+	{
170	+	vector<video_mode>::const_iterator i, end = VideoModes.end();
171	+	for (i = VideoModes.begin(); i != end; ++i) {
172	+	if (i->depth == depth && i->resolution_id == id)
173	+	return i->bytes_per_row;
174	+	}
175	+	uint32 x, y;
176	+	get_size_of_resolution(id, x, y);
177	+	return TrivialBytesPerRow(x, depth);
178	+	}
179	+
180	+
181	+	/*
182	+	*  Find palette size for given color depth
183	+	*/
184	+
185	+	static int palette_size(video_depth depth)
186	+	{
187	+	switch (depth) {
188	+	case VDEPTH_1BIT: return 2;
189	+	case VDEPTH_2BIT: return 4;
190	+	case VDEPTH_4BIT: return 16;
191	+	case VDEPTH_8BIT: return 256;
192	+	case VDEPTH_16BIT: return 32;
193	+	case VDEPTH_32BIT: return 256;
194	+	default: return 0;
195	+	}
196	+	}
197	+
198	+
199	+	/*
200	+	*  Set palette to 50% gray
201	+	*/
202	+
203	+	static void set_gray_palette(void)
204	+	{
205	+	for (int i=0; i<256; i++) {
206	+	VidLocal.palette[i * 3 + 0] = 127;
207	+	VidLocal.palette[i * 3 + 1] = 127;
208	+	VidLocal.palette[i * 3 + 2] = 127;
209	+	}
210	+	video_set_palette(VidLocal.palette, 256);
211	+	}
212	+
213	+
214	+	/*
215	+	*  Load gamma-corrected black-to-white ramp to palette for direct-color mode
216	+	*/
217	+
218	+	static void load_ramp_palette(void)
219	+	{
220	+	// Find tables for gamma correction
221	+	uint8 *red_gamma, *green_gamma, *blue_gamma;
222	+	bool have_gamma = false;
223	+	int data_width = 0;
224	+	if (VidLocal.gamma_table) {
225	+	uint32 table = VidLocal.gamma_table;
226	+	red_gamma = Mac2HostAddr(table + gFormulaData + ReadMacInt16(table + gFormulaSize));
227	+	int chan_cnt = ReadMacInt16(table + gChanCnt);
228	+	if (chan_cnt == 1)
229	+	green_gamma = blue_gamma = red_gamma;
230	+	else {
231	+	int ofs = ReadMacInt16(table + gDataCnt);
232	+	green_gamma = red_gamma + ofs;
233	+	blue_gamma = green_gamma + ofs;
234	+	}
235	+	data_width = ReadMacInt16(table + gDataWidth);
236	+	have_gamma = true;
237	+	}
238	+
239	+	int num = (VidLocal.desc->mode.depth == VDEPTH_16BIT ? 32 : 256);
240	+	uint8 *p = VidLocal.palette;
241	+	for (int i=0; i<num; i++) {
242	+	uint8 red = (i * 256 / num), green = red, blue = red;
243	+	if (have_gamma) {
244	+	red = red_gamma[red >> (8 - data_width)];
245	+	green = green_gamma[green >> (8 - data_width)];
246	+	blue = blue_gamma[blue >> (8 - data_width)];
247	+	}
248	+	*p++ = red;
249	+	*p++ = green;
250	+	*p++ = blue;
251	+	}
252	+
253	+	video_set_palette(VidLocal.palette, num);
254	+	}
255	+
256	+
257	+	/*
258	+	*  Allocate gamma table of specified size
259	+	*/
260	+
261	+	static bool allocate_gamma_table(int size)
262	+	{
263	+	M68kRegisters r;
264	+
265	+	if (size > VidLocal.alloc_gamma_table_size) {
266	+	if (VidLocal.gamma_table) {
267	+	r.a[0] = VidLocal.gamma_table;
268	+	Execute68kTrap(0xa01f, &r);     // DisposePtr()
269	+	VidLocal.gamma_table = 0;
270	+	VidLocal.alloc_gamma_table_size = 0;
271	+	}
272	+	r.d[0] = size;
273	+	Execute68kTrap(0xa71e, &r);     // NewPtrSysClear()
274	+	if (r.a[0] == 0)
275	+	return false;
276	+	VidLocal.gamma_table = r.a[0];
277	+	VidLocal.alloc_gamma_table_size = size;
278	+	}
279	+	return true;
280	+	}
281	+
282	+
283	+	/*
284	+	*  Set gamma table (0 = build linear ramp)
285	+	*/
286	+
287	+	static bool set_gamma_table(uint32 user_table)
288	+	{
289	+	if (user_table == 0) { // Build linear ramp, 256 entries
290	+
291	+	// Allocate new table, if necessary
292	+	if (!allocate_gamma_table(SIZEOF_GammaTbl + 256))
293	+	return memFullErr;
294	+	uint32 table = VidLocal.gamma_table;
295	+
296	+	// Initialize header
297	+	WriteMacInt16(table + gVersion, 0);
298	+	WriteMacInt16(table + gType, 0);
299	+	WriteMacInt16(table + gFormulaSize, 0);
300	+	WriteMacInt16(table + gChanCnt, 1);
301	+	WriteMacInt16(table + gDataCnt, 256);
302	+	WriteMacInt16(table + gDataWidth, 8);
303	+
304	+	// Build ramp
305	+	uint32 p = table + gFormulaData;
306	+	for (int i=0; i<256; i++)
307	+	WriteMacInt8(p + i, i);
308	+
309	+	} else { // User-supplied gamma table
310	+
311	+	// Validate header
312	+	if (ReadMacInt16(user_table + gVersion))
313	+	return paramErr;
314	+	if (ReadMacInt16(user_table + gType))
315	+	return paramErr;
316	+	int chan_cnt = ReadMacInt16(user_table + gChanCnt);
317	+	if (chan_cnt != 1 && chan_cnt != 3)
318	+	return paramErr;
319	+	int data_width = ReadMacInt16(user_table + gDataWidth);
320	+	if (data_width > 8)
321	+	return paramErr;
322	+	int data_cnt = ReadMacInt16(user_table + gDataCnt);
323	+	if (data_cnt != (1 << data_width))
324	+	return paramErr;
325	+
326	+	// Allocate new table, if necessary
327	+	int size = SIZEOF_GammaTbl + ReadMacInt16(user_table + gFormulaSize) + chan_cnt * data_cnt;
328	+	if (!allocate_gamma_table(size))
329	+	return memFullErr;
330	+	uint32 table = VidLocal.gamma_table;
331	+
332	+	// Copy table
333	+	Mac2Mac_memcpy(table, user_table, size);
334	+	}
335	+
336	+	if (IsDirectMode(VidLocal.desc->mode))
337	+	load_ramp_palette();
338	+
339	+	return true;
340	+	}
341	+
342	+
343	+	/*
344	+	*  Switch video mode
345	+	*/
346	+
347	+	static void switch_mode(const video_mode &mode, uint32 param, uint32 dce)
348	+	{
349	+	// Switch mode
350	+	set_gray_palette();
351	+	video_switch_to_mode(mode);
352	+
353	+	// Update VidLocal
354	+	VidLocal.current_mode = DepthToAppleMode(mode.depth);
355	+	VidLocal.current_id = mode.resolution_id;
356	+
357	+	uint32 frame_base = VidLocal.desc->mac_frame_base;
358	+
359	+	M68kRegisters r;
360	+	uint32 sp = VidLocal.slot_param;
361	+	r.a[0] = sp;
362	+
363	+	// Find functional sResource for this display
364	+	WriteMacInt8(sp + spSlot, ReadMacInt8(dce + dCtlSlot));
365	+	WriteMacInt8(sp + spID, ReadMacInt8(dce + dCtlSlotId));
366	+	WriteMacInt8(sp + spExtDev, 0);
367	+	r.d[0] = 0x0016;
368	+	Execute68kTrap(0xa06e, &r);     // SRsrcInfo()
369	+	uint32 rsrc = ReadMacInt32(sp + spPointer);
370	+
371	+	// Patch minorBase (otherwise rebooting won't work)
372	+	WriteMacInt8(sp + spID, 0x0a); // minorBase
373	+	r.d[0] = 0x0006;
374	+	Execute68kTrap(0xa06e, &r); // SFindStruct()
375	+	uint32 minor_base = ReadMacInt32(sp + spPointer) - ROMBaseMac;
376	+	ROMBaseHost[minor_base + 0] = frame_base >> 24;
377	+	ROMBaseHost[minor_base + 1] = frame_base >> 16;
378	+	ROMBaseHost[minor_base + 2] = frame_base >> 8;
379	+	ROMBaseHost[minor_base + 3] = frame_base;
380	+
381	+	// Patch video mode parameter table
382	+	WriteMacInt32(sp + spPointer, rsrc);
383	+	WriteMacInt8(sp + spID, DepthToAppleMode(mode.depth));
384	+	r.d[0] = 0x0006;
385	+	Execute68kTrap(0xa06e, &r); // SFindStruct()
386	+	WriteMacInt8(sp + spID, 0x01);
387	+	r.d[0] = 0x0006;
388	+	Execute68kTrap(0xa06e, &r); // SFindStruct()
389	+	uint32 p = ReadMacInt32(sp + spPointer) - ROMBaseMac;
390	+	ROMBaseHost[p +  8] = mode.bytes_per_row >> 8;
391	+	ROMBaseHost[p +  9] = mode.bytes_per_row;
392	+	ROMBaseHost[p + 14] = mode.y >> 8;
393	+	ROMBaseHost[p + 15] = mode.y;
394	+	ROMBaseHost[p + 16] = mode.x >> 8;
395	+	ROMBaseHost[p + 17] = mode.x;
396	+
397	+	// Recalculate slot ROM checksum
398	+	ChecksumSlotROM();
399	+
400	+	// Update sResource
401	+	WriteMacInt8(sp + spID, ReadMacInt8(dce + dCtlSlotId));
402	+	r.d[0] = 0x002b;
403	+	Execute68kTrap(0xa06e, &r); // SUpdateSRT()
404	+
405	+	// Update frame buffer base in DCE and param block
406	+	WriteMacInt32(dce + dCtlDevBase, frame_base);
407	+	WriteMacInt32(param + csBaseAddr, frame_base);
408	+
409	+	// Patch frame buffer base address for MacOS versions <7.6
410	+	if (!VidLocal.dm_present) { // Only do this when no Display Manager seems to be present; otherwise, the screen will not get redrawn
411	+	WriteMacInt32(0x824, frame_base);                       // ScrnBase
412	+	uint32 gdev = ReadMacInt32(0x8a4);                      // MainDevice
413	+	gdev = ReadMacInt32(gdev);
414	+	uint32 pmap = ReadMacInt32(gdev + 0x16);        // gdPMap
415	+	pmap = ReadMacInt32(pmap);
416	+	WriteMacInt32(pmap, frame_base);                        // baseAddr
417	+	}
418	+	}
419	+
420	+
421	+	/*
422		*  Driver Open() routine
423		*/
424
425	<	int16 VideoOpen(uint32 pb, uint32 dce)
425	>	int16 VideoDriverOpen(uint32 pb, uint32 dce)
426		{
427	<	D(bug("VideoOpen\n"));
427	>	D(bug("VideoDriverOpen\n"));
428	>
429	>	// This shouldn't happen unless the platform-specific video code is broken
430	>	if (VideoModes.empty())
431	>	fprintf(stderr, "No valid video modes found (broken video driver?)\n");
432
433		// Init local variables
434		VidLocal.desc = &VideoMonitor;
435		VidLocal.luminance_mapping = false;
436		VidLocal.interrupts_enabled = false;
437	+	VidLocal.current_mode = DepthToAppleMode(VidLocal.desc->mode.depth);
438	+	VidLocal.current_id = VidLocal.desc->mode.resolution_id;
439	+	VidLocal.preferred_mode = VidLocal.current_mode;
440	+	VidLocal.preferred_id = VidLocal.current_id;
441	+	VidLocal.dm_present = false;
442	+
443	+	// Allocate Slot Manager parameter block in Mac RAM
444	+	M68kRegisters r;
445	+	r.d[0] = SIZEOF_SPBlock;
446	+	Execute68kTrap(0xa71e, &r);     // NewPtrSysClear()
447	+	if (r.a[0] == 0)
448	+	return memFullErr;
449	+	VidLocal.slot_param = r.a[0];
450	+	D(bug("SPBlock at %08x\n", VidLocal.slot_param));
451	+
452	+	// Find and set default gamma table
453	+	VidLocal.gamma_table = 0;
454	+	VidLocal.alloc_gamma_table_size = 0;
455	+	set_gamma_table(0);
456
457		// Init color palette (solid gray)
458	<	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	<	}
458	>	set_gray_palette();
459		return noErr;
460		}
461
#	Line 80 | Line 464 | int16 VideoOpen(uint32 pb, uint32 dce)
464		*  Driver Control() routine
465		*/
466
467	<	int16 VideoControl(uint32 pb, uint32 dce)
467	>	int16 VideoDriverControl(uint32 pb, uint32 dce)
468		{
469		uint16 code = ReadMacInt16(pb + csCode);
470		uint32 param = ReadMacInt32(pb + csParam);
471	<	D(bug("VideoControl %d\n", code));
471	>	D(bug("VideoDriverControl %d\n", code));
472		switch (code) {
473
474	<	case cscSetMode:                // Set color depth
475	<	D(bug(" SetMode %04x\n", ReadMacInt16(param + csMode)));
474	>	case cscSetMode: {              // Set color depth
475	>	uint16 mode = ReadMacInt16(param + csMode);
476	>	D(bug(" SetMode %04x\n", mode));
477	>
478	>	// Set old base address in case the switch fails
479		WriteMacInt32(param + csBaseAddr, VidLocal.desc->mac_frame_base);
480	+
481	+	if (ReadMacInt16(param + csPage))
482	+	return paramErr;
483	+
484	+	if (mode != VidLocal.current_mode) {
485	+	vector<video_mode>::const_iterator i = find_mode(mode, VidLocal.current_id);
486	+	if (i == VideoModes.end())
487	+	return paramErr;
488	+	switch_mode(*i, param, dce);
489	+	}
490	+	D(bug("  base %08x\n", VidLocal.desc->mac_frame_base));
491		return noErr;
492	+	}
493
494	<	case cscSetEntries: {   // Set palette
495	<	D(bug(" SetEntries table %08lx, count %d, start %d\n", ReadMacInt32(param + csTable), ReadMacInt16(param + csCount), ReadMacInt16(param + csStart)));
496	<	if (IsDirectMode(VidLocal.desc->mode))
494	>	case cscSetEntries:             // Set palette
495	>	case cscDirectSetEntries: {
496	>	D(bug(" (Direct)SetEntries table %08x, count %d, start %d\n", ReadMacInt32(param + csTable), ReadMacInt16(param + csCount), ReadMacInt16(param + csStart)));
497	>	bool is_direct = IsDirectMode(VidLocal.desc->mode);
498	>	if (code == cscSetEntries && is_direct)
499	>	return controlErr;
500	>	if (code == cscDirectSetEntries && !is_direct)
501		return controlErr;
502
503		uint32 s_pal = ReadMacInt32(param + csTable);   // Source palette
504		uint8 *d_pal;                                                                   // Destination palette
505	+	uint16 start = ReadMacInt16(param + csStart);
506		uint16 count = ReadMacInt16(param + csCount);
507	<	if (!s_pal || count > 255)
507	>	if (s_pal == 0 || count > 255)
508		return paramErr;
509
510	<	if (ReadMacInt16(param + csStart) == 0xffff) {  // Indexed
510	>	// Find tables for gamma correction
511	>	uint8 *red_gamma, *green_gamma, *blue_gamma;
512	>	bool have_gamma = false;
513	>	int data_width = 0;
514	>	if (VidLocal.gamma_table) {
515	>	uint32 table = VidLocal.gamma_table;
516	>	red_gamma = Mac2HostAddr(table + gFormulaData + ReadMacInt16(table + gFormulaSize));
517	>	int chan_cnt = ReadMacInt16(table + gChanCnt);
518	>	if (chan_cnt == 1)
519	>	green_gamma = blue_gamma = red_gamma;
520	>	else {
521	>	int ofs = ReadMacInt16(table + gDataCnt);
522	>	green_gamma = red_gamma + ofs;
523	>	blue_gamma = green_gamma + ofs;
524	>	}
525	>	data_width = ReadMacInt16(table + gDataWidth);
526	>	have_gamma = true;
527	>	}
528	>
529	>	// Convert palette
530	>	if (start == 0xffff) {  // Indexed
531		for (uint32 i=0; i<=count; i++) {
532	<	d_pal = VidLocal.palette + ReadMacInt16(s_pal) * 3;
532	>	d_pal = VidLocal.palette + (ReadMacInt16(s_pal) & 0xff) * 3;
533		uint8 red = (uint16)ReadMacInt16(s_pal + 2) >> 8;
534		uint8 green = (uint16)ReadMacInt16(s_pal + 4) >> 8;
535		uint8 blue = (uint16)ReadMacInt16(s_pal + 6) >> 8;
536	<	if (VidLocal.luminance_mapping)
536	>	if (VidLocal.luminance_mapping && !is_direct)
537		red = green = blue = (red * 0x4ccc + green * 0x970a + blue * 0x1c29) >> 16;
538	+	if (have_gamma) {
539	+	red = red_gamma[red >> (8 - data_width)];
540	+	green = green_gamma[green >> (8 - data_width)];
541	+	blue = blue_gamma[blue >> (8 - data_width)];
542	+	}
543		*d_pal++ = red;
544		*d_pal++ = green;
545		*d_pal++ = blue;
546		s_pal += 8;
547		}
548	<	} else {                                                                                // Sequential
549	<	d_pal = VidLocal.palette + ReadMacInt16(param + csStart) * 3;
548	>	} else {                                // Sequential
549	>	if (start + count > 255)
550	>	return paramErr;
551	>	d_pal = VidLocal.palette + start * 3;
552		for (uint32 i=0; i<=count; i++) {
553		uint8 red = (uint16)ReadMacInt16(s_pal + 2) >> 8;
554		uint8 green = (uint16)ReadMacInt16(s_pal + 4) >> 8;
555		uint8 blue = (uint16)ReadMacInt16(s_pal + 6) >> 8;
556	<	if (VidLocal.luminance_mapping)
556	>	if (VidLocal.luminance_mapping && !is_direct)
557		red = green = blue = (red * 0x4ccc + green * 0x970a + blue * 0x1c29) >> 16;
558	+	if (have_gamma) {
559	+	red = red_gamma[red >> (8 - data_width)];
560	+	green = green_gamma[green >> (8 - data_width)];
561	+	blue = blue_gamma[blue >> (8 - data_width)];
562	+	}
563		*d_pal++ = red;
564		*d_pal++ = green;
565		*d_pal++ = blue;
566		s_pal += 8;
567		}
568		}
569	<	video_set_palette(VidLocal.palette);
569	>	video_set_palette(VidLocal.palette, palette_size(VidLocal.desc->mode.depth));
570		return noErr;
571		}
572
573	<	case cscSetGamma:               // Set gamma table
574	<	D(bug(" SetGamma\n"));
575	<	return noErr;
573	>	case cscSetGamma: {             // Set gamma table
574	>	uint32 user_table = ReadMacInt32(param + csGTable);
575	>	D(bug(" SetGamma %08x\n", user_table));
576	>	return set_gamma_table(user_table) ? noErr : memFullErr;
577	>	}
578
579		case cscGrayPage: {             // Fill page with dithered gray pattern
580		D(bug(" GrayPage %d\n", ReadMacInt16(param + csPage)));
#	Line 151 | Line 589 | int16 VideoControl(uint32 pb, uint32 dce
589		0xffff0000,             // 16 bpp
590		0xffffffff              // 32 bpp
591		};
592	<	uint32 p = VidLocal.desc->mac_frame_base;
593	<	uint32 pat = pattern[VidLocal.desc->mode];
594	<	for (uint32 y=0; y<VidLocal.desc->y; y++) {
595	<	uint32 p2 = p;
596	<	for (uint32 x=0; x<VidLocal.desc->bytes_per_row / 4; x++) {
597	<	WriteMacInt32(p2, pat);
598	<	p2 += 4;
161	<	if (VidLocal.desc->mode == VMODE_32BIT)
592	>	uint32 frame_base = VidLocal.desc->mac_frame_base;
593	>	uint32 pat = pattern[VidLocal.desc->mode.depth];
594	>	bool invert = (VidLocal.desc->mode.depth == VDEPTH_32BIT);
595	>	for (uint32 y=0; y<VidLocal.desc->mode.y; y++) {
596	>	for (uint32 x=0; x<VidLocal.desc->mode.bytes_per_row; x+=4) {
597	>	WriteMacInt32(frame_base + x, pat);
598	>	if (invert)
599		pat = ~pat;
600		}
601	<	p += VidLocal.desc->bytes_per_row;
601	>	frame_base += VidLocal.desc->mode.bytes_per_row;
602		pat = ~pat;
603		}
604	+
605	+	if (IsDirectMode(VidLocal.desc->mode))
606	+	load_ramp_palette();
607	+
608		return noErr;
609		}
610
#	Line 172 | Line 613 | int16 VideoControl(uint32 pb, uint32 dce
613		VidLocal.luminance_mapping = ReadMacInt8(param + csMode);
614		return noErr;
615
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	–
616		case cscSetInterrupt:   // Enable/disable VBL
617		D(bug(" SetInterrupt %02x\n", ReadMacInt8(param + csMode)));
618		VidLocal.interrupts_enabled = (ReadMacInt8(param + csMode) == 0);
619		return noErr;
620
621	+	case cscSetDefaultMode: { // Set default color depth
622	+	uint16 mode = ReadMacInt16(param + csMode);
623	+	D(bug(" SetDefaultMode %04x\n", mode));
624	+	VidLocal.preferred_mode = mode;
625	+	return noErr;
626	+	}
627	+
628	+	case cscSwitchMode: {   // Switch video mode (depth and resolution)
629	+	uint16 mode = ReadMacInt16(param + csMode);
630	+	uint32 id = ReadMacInt32(param + csData);
631	+	D(bug(" SwitchMode %04x, %08x\n", mode, id));
632	+
633	+	// Set old base address in case the switch fails
634	+	WriteMacInt32(param + csBaseAddr, VidLocal.desc->mac_frame_base);
635	+
636	+	if (ReadMacInt16(param + csPage))
637	+	return paramErr;
638	+
639	+	if (mode != VidLocal.current_mode || id != VidLocal.current_id) {
640	+	vector<video_mode>::const_iterator i = find_mode(mode, id);
641	+	if (i == VideoModes.end())
642	+	return paramErr;
643	+	switch_mode(*i, param, dce);
644	+	}
645	+	D(bug("  base %08x\n", VidLocal.desc->mac_frame_base));
646	+	return noErr;
647	+	}
648	+
649	+	case cscSavePreferredConfiguration: {
650	+	uint16 mode = ReadMacInt16(param + csMode);
651	+	uint32 id = ReadMacInt32(param + csData);
652	+	D(bug(" SavePreferredConfiguration %04x, %08x\n", mode, id));
653	+	VidLocal.preferred_mode = mode;
654	+	VidLocal.preferred_id = id;
655	+	return noErr;
656	+	}
657	+
658		default:
659	<	printf("WARNING: Unknown VideoControl(%d)\n", code);
659	>	printf("WARNING: Unknown VideoDriverControl(%d)\n", code);
660		return controlErr;
661		}
662		}
#	Line 193 | Line 666 | int16 VideoControl(uint32 pb, uint32 dce
666		*  Driver Status() routine
667		*/
668
669	<	int16 VideoStatus(uint32 pb, uint32 dce)
669	>	int16 VideoDriverStatus(uint32 pb, uint32 dce)
670		{
671		uint16 code = ReadMacInt16(pb + csCode);
672		uint32 param = ReadMacInt32(pb + csParam);
673	<	D(bug("VideoStatus %d\n", code));
673	>	D(bug("VideoDriverStatus %d\n", code));
674		switch (code) {
675
676	<	case cscGetPageCnt:                     // Get number of pages
677	<	D(bug(" GetPageCnt\n"));
676	>	case cscGetMode:                        // Get current color depth
677	>	D(bug(" GetMode -> %04x, base %08x\n", VidLocal.current_mode, VidLocal.desc->mac_frame_base));
678	>	WriteMacInt16(param + csMode, VidLocal.current_mode);
679	>	WriteMacInt16(param + csPage, 0);
680	>	WriteMacInt32(param + csBaseAddr, VidLocal.desc->mac_frame_base);
681	>	return noErr;
682	>
683	>	case cscGetEntries: {           // Read palette
684	>	D(bug(" GetEntries table %08x, count %d, start %d\n", ReadMacInt32(param + csTable), ReadMacInt16(param + csCount), ReadMacInt16(param + csStart)));
685	>
686	>	uint8 *s_pal;                                                                   // Source palette
687	>	uint32 d_pal = ReadMacInt32(param + csTable);   // Destination palette
688	>	uint16 start = ReadMacInt16(param + csStart);
689	>	uint16 count = ReadMacInt16(param + csCount);
690	>	if (d_pal == 0 || count > 255)
691	>	return paramErr;
692	>
693	>	if (start == 0xffff) {  // Indexed
694	>	for (uint32 i=0; i<=count; i++) {
695	>	s_pal = VidLocal.palette + (ReadMacInt16(d_pal) & 0xff) * 3;
696	>	uint8 red = *s_pal++;
697	>	uint8 green = *s_pal++;
698	>	uint8 blue = *s_pal++;
699	>	WriteMacInt16(d_pal + 2, red * 0x0101);
700	>	WriteMacInt16(d_pal + 4, green * 0x0101);
701	>	WriteMacInt16(d_pal + 6, blue * 0x0101);
702	>	d_pal += 8;
703	>	}
704	>	} else {                                // Sequential
705	>	if (start + count > 255)
706	>	return paramErr;
707	>	s_pal = VidLocal.palette + start * 3;
708	>	for (uint32 i=0; i<=count; i++) {
709	>	uint8 red = *s_pal++;
710	>	uint8 green = *s_pal++;
711	>	uint8 blue = *s_pal++;
712	>	WriteMacInt16(d_pal + 2, red * 0x0101);
713	>	WriteMacInt16(d_pal + 4, green * 0x0101);
714	>	WriteMacInt16(d_pal + 6, blue * 0x0101);
715	>	d_pal += 8;
716	>	}
717	>	}
718	>	return noErr;
719	>	}
720	>
721	>	case cscGetPages:                       // Get number of pages
722	>	D(bug(" GetPages -> 1\n"));
723		WriteMacInt16(param + csPage, 1);
724		return noErr;
725
726	<	case cscGetPageBase:            // Get page base address
727	<	D(bug(" GetPageBase\n"));
726	>	case cscGetBaseAddress:         // Get page base address
727	>	D(bug(" GetBaseAddress -> %08x\n", VidLocal.desc->mac_frame_base));
728		WriteMacInt32(param + csBaseAddr, VidLocal.desc->mac_frame_base);
729	<	return noErr;
729	>	if (ReadMacInt16(param + csPage))
730	>	return paramErr;
731	>	else
732	>	return noErr;
733
734		case cscGetGray:                        // Get luminance mapping flag
735	<	D(bug(" GetGray\n"));
736	<	WriteMacInt8(param + csMode, VidLocal.luminance_mapping ? 1 : 0);
735	>	D(bug(" GetGray -> %d\n", VidLocal.luminance_mapping));
736	>	WriteMacInt16(param, VidLocal.luminance_mapping ? 0x0100 : 0);
737		return noErr;
738
739		case cscGetInterrupt:           // Get interrupt disable flag
740	<	D(bug(" GetInterrupt\n"));
741	<	WriteMacInt8(param + csMode, VidLocal.interrupts_enabled ? 0 : 1);
740	>	D(bug(" GetInterrupt -> %d\n", VidLocal.interrupts_enabled));
741	>	WriteMacInt16(param, VidLocal.interrupts_enabled ? 0 : 0x0100);
742		return noErr;
743
744	<	case cscGetDefaultMode:         // Get default video mode
745	<	D(bug(" GetDefaultMode\n"));
746	<	WriteMacInt8(param + csMode, 0x80);
744	>	case cscGetGamma:
745	>	D(bug(" GetGamma -> %08x\n", VidLocal.gamma_table));
746	>	WriteMacInt32(param + csGTable, VidLocal.gamma_table);
747		return noErr;
748
749	<	case cscGetCurMode:                     // Get current video mode
750	<	D(bug(" GetCurMode\n"));
751	<	WriteMacInt16(param + csMode, 0x80);
752	<	WriteMacInt32(param + csData, 0x80);
749	>	case cscGetDefaultMode:         // Get default color depth
750	>	D(bug(" GetDefaultMode -> %04x\n", VidLocal.preferred_mode));
751	>	WriteMacInt16(param + csMode, VidLocal.preferred_mode);
752	>	return noErr;
753	>
754	>	case cscGetCurrentMode:         // Get current video mode (depth and resolution)
755	>	D(bug(" GetCurMode -> %04x/%08x, base %08x\n", VidLocal.current_mode, VidLocal.current_id, VidLocal.desc->mac_frame_base));
756	>	WriteMacInt16(param + csMode, VidLocal.current_mode);
757	>	WriteMacInt32(param + csData, VidLocal.current_id);
758		WriteMacInt16(param + csPage, 0);
759		WriteMacInt32(param + csBaseAddr, VidLocal.desc->mac_frame_base);
760		return noErr;
761
762		case cscGetConnection:          // Get monitor information
763		D(bug(" GetConnection\n"));
764	<	WriteMacInt16(param + csDisplayType, 6);                // 21" Multiscan
765	<	WriteMacInt8(param + csConnectTaggedType, 6);
766	<	WriteMacInt8(param + csConnectTaggedData, 0x23);
767	<	WriteMacInt32(param + csConnectFlags, 0x03);    // All modes valid and safe
764	>	WriteMacInt16(param + csDisplayType, 8);                // Modeless connection
765	>	WriteMacInt8(param + csConnectTaggedType, 0);
766	>	WriteMacInt8(param + csConnectTaggedData, 0);
767	>	WriteMacInt32(param + csConnectFlags, 0x43);    // All modes valid and safe, non-standard tagging
768		WriteMacInt32(param + csDisplayComponent, 0);
769		return noErr;
770
771	<	case cscGetModeTiming:          // Get video timing for mode
772	<	D(bug(" GetModeTiming mode %08lx\n", ReadMacInt32(param + csTimingMode)));
773	<	WriteMacInt32(param + csTimingFormat, 'decl');
774	<	WriteMacInt32(param + csTimingData, 220);               // 21" Multiscan
775	<	WriteMacInt32(param + csTimingFlags, 0x0f);             // Mode valid, safe, default and shown in Monitors panel
771	>	case cscGetModeTiming: {        // Get video timing for specified resolution
772	>	uint32 id = ReadMacInt32(param + csTimingMode);
773	>	D(bug(" GetModeTiming %08x\n", id));
774	>	if (!has_resolution(id))
775	>	return paramErr;
776	>
777	>	WriteMacInt32(param + csTimingFormat, FOURCC('d', 'e', 'c', 'l'));
778	>	WriteMacInt32(param + csTimingData, 0); // unknown
779	>	uint32 flags = 0xb; // mode valid, safe and shown in Monitors panel
780	>	if (id == VidLocal.preferred_id)
781	>	flags |= 4; // default mode
782	>	WriteMacInt32(param + csTimingFlags, flags);
783		return noErr;
784	+	}
785
786		case cscGetModeBaseAddress:     // Get frame buffer base address
787	<	D(bug(" GetModeBaseAddress\n"));
787	>	D(bug(" GetModeBaseAddress -> base %08x\n", VidLocal.desc->mac_frame_base));
788		WriteMacInt32(param + csBaseAddr, VidLocal.desc->mac_frame_base);
789		return noErr;
790
791	+	case cscGetPreferredConfiguration: // Get default video mode (depth and resolution)
792	+	D(bug(" GetPreferredConfiguration -> %04x/%08x\n", VidLocal.preferred_mode, VidLocal.preferred_id));
793	+	WriteMacInt16(param + csMode, VidLocal.preferred_mode);
794	+	WriteMacInt32(param + csData, VidLocal.preferred_id);
795	+	return noErr;
796	+
797	+	case cscGetNextResolution: {    // Called iteratively to obtain a list of all supported resolutions
798	+	uint32 id = ReadMacInt32(param + csPreviousDisplayModeID);
799	+	D(bug(" GetNextResolution %08x\n", id));
800	+
801	+	switch (id) {
802	+	case 0:
803	+	// Return current resolution
804	+	id = VidLocal.current_id;
805	+	break;
806	+
807	+	case 0xfffffffe:
808	+	// Return first supported resolution
809	+	id = 0x80;
810	+	while (!has_resolution(id))
811	+	id++;
812	+	break;
813	+
814	+	default:
815	+	// Get next resolution
816	+	if (!has_resolution(id))
817	+	return paramErr;
818	+	id++;
819	+	while (!has_resolution(id) && id < 0x100)
820	+	id++;
821	+	if (id == 0x100) { // No more resolutions
822	+	WriteMacInt32(param + csRIDisplayModeID, 0xfffffffd);
823	+	return noErr;
824	+	}
825	+	break;
826	+	}
827	+
828	+	WriteMacInt32(param + csRIDisplayModeID, id);
829	+	uint32 x, y;
830	+	get_size_of_resolution(id, x, y);
831	+	WriteMacInt32(param + csHorizontalPixels, x);
832	+	WriteMacInt32(param + csVerticalLines, y);
833	+	WriteMacInt32(param + csRefreshRate, 75 << 16);
834	+	WriteMacInt16(param + csMaxDepthMode, DepthToAppleMode(max_depth_of_resolution(id)));
835	+	return noErr;
836	+	}
837	+
838	+	case cscGetVideoParameters: {   // Get information about specified resolution/depth
839	+	uint32 id = ReadMacInt32(param + csDisplayModeID);
840	+	uint16 mode = ReadMacInt16(param + csDepthMode);
841	+	D(bug(" GetVideoParameters %04x/%08x\n", mode, id));
842	+	VidLocal.dm_present = true;     // Display Manager seems to be present
843	+
844	+	vector<video_mode>::const_iterator i, end = VideoModes.end();
845	+	for (i = VideoModes.begin(); i != end; ++i) {
846	+	if (DepthToAppleMode(i->depth) == mode && i->resolution_id == id) {
847	+	uint32 vp = ReadMacInt32(param + csVPBlockPtr);
848	+	WriteMacInt32(vp + vpBaseOffset, 0);
849	+	WriteMacInt16(vp + vpRowBytes, i->bytes_per_row);
850	+	WriteMacInt16(vp + vpBounds, 0);
851	+	WriteMacInt16(vp + vpBounds + 2, 0);
852	+	WriteMacInt16(vp + vpBounds + 4, i->y);
853	+	WriteMacInt16(vp + vpBounds + 6, i->x);
854	+	WriteMacInt16(vp + vpVersion, 0);
855	+	WriteMacInt16(vp + vpPackType, 0);
856	+	WriteMacInt32(vp + vpPackSize, 0);
857	+	WriteMacInt32(vp + vpHRes, 0x00480000); // 72 dpi
858	+	WriteMacInt32(vp + vpVRes, 0x00480000);
859	+	uint32 pix_type, pix_size, cmp_count, cmp_size, dev_type;
860	+	switch (i->depth) {
861	+	case VDEPTH_1BIT:
862	+	pix_type = 0; pix_size = 1;
863	+	cmp_count = 1; cmp_size = 1;
864	+	dev_type = 0; // CLUT
865	+	break;
866	+	case VDEPTH_2BIT:
867	+	pix_type = 0; pix_size = 2;
868	+	cmp_count = 1; cmp_size = 2;
869	+	dev_type = 0; // CLUT
870	+	break;
871	+	case VDEPTH_4BIT:
872	+	pix_type = 0; pix_size = 4;
873	+	cmp_count = 1; cmp_size = 4;
874	+	dev_type = 0; // CLUT
875	+	break;
876	+	case VDEPTH_8BIT:
877	+	pix_type = 0; pix_size = 8;
878	+	cmp_count = 1; cmp_size = 8;
879	+	dev_type = 0; // CLUT
880	+	break;
881	+	case VDEPTH_16BIT:
882	+	pix_type = 0x10; pix_size = 16;
883	+	cmp_count = 3; cmp_size = 5;
884	+	dev_type = 2; // direct
885	+	break;
886	+	case VDEPTH_32BIT:
887	+	pix_type = 0x10; pix_size = 32;
888	+	cmp_count = 3; cmp_size = 8;
889	+	dev_type = 2; // direct
890	+	break;
891	+	}
892	+	WriteMacInt16(vp + vpPixelType, pix_type);
893	+	WriteMacInt16(vp + vpPixelSize, pix_size);
894	+	WriteMacInt16(vp + vpCmpCount, cmp_count);
895	+	WriteMacInt16(vp + vpCmpSize, cmp_size);
896	+	WriteMacInt32(param + csPageCount, 1);
897	+	WriteMacInt32(param + csDeviceType, dev_type);
898	+	return noErr;
899	+	}
900	+	}
901	+	return paramErr; // specified resolution/depth not supported
902	+	}
903	+
904		default:
905	<	printf("WARNING: Unknown VideoStatus(%d)\n", code);
905	>	printf("WARNING: Unknown VideoDriverStatus(%d)\n", code);
906		return statusErr;
907		}
908		}

Diff Legend

–	Removed lines
+	Added lines
<	Changed lines
>	Changed lines