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root/cebix/BasiliskII/src/video.cpp

Comparing BasiliskII/src/video.cpp (file contents):
Revision 1.7 by cebix, 2001-02-02T20:52:57Z vs.
Revision 1.18 by cebix, 2001-07-01T14:38:02Z

#	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		// 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	+	vector<video_mode>::const_iterator i, end = VideoModes.end();
71	+	for (i = VideoModes.begin(); i != end; ++i) {
72	+	if (i->resolution_id == id)
73	+	return true;
74	+	}
75	+	return false;
76	+	}
77	+
78	+
79	+	/*
80	+	*  Find specified mode (depth/resolution) (or VideoModes.end() if not found)
81	+	*/
82	+
83	+	static vector<video_mode>::const_iterator find_mode(uint16 mode, uint32 id)
84	+	{
85	+	vector<video_mode>::const_iterator i, end = VideoModes.end();
86	+	for (i = VideoModes.begin(); i != end; ++i) {
87	+	if (i->resolution_id == id && DepthToAppleMode(i->depth) == mode)
88	+	return i;
89	+	}
90	+	return i;
91	+	}
92	+
93	+
94	+	/*
95	+	*  Find maximum supported depth for given resolution ID
96	+	*/
97	+
98	+	static video_depth max_depth_of_resolution(uint32 id)
99	+	{
100	+	video_depth m = VDEPTH_1BIT;
101	+	vector<video_mode>::const_iterator i, end = VideoModes.end();
102	+	for (i = VideoModes.begin(); i != end; ++i) {
103	+	if (i->depth > m)
104	+	m = i->depth;
105	+	}
106	+	return m;
107	+	}
108	+
109	+
110	+	/*
111	+	*  Get X/Y size of specified resolution
112	+	*/
113	+
114	+	static void get_size_of_resolution(uint32 id, uint32 &x, uint32 &y)
115	+	{
116	+	vector<video_mode>::const_iterator i, end = VideoModes.end();
117	+	for (i = VideoModes.begin(); i != end; ++i) {
118	+	if (i->resolution_id == id) {
119	+	x = i->x;
120	+	y = i->y;
121	+	return;
122	+	}
123	+	}
124	+	}
125	+
126	+
127	+	/*
128	+	*  Set palette to 50% gray
129	+	*/
130	+
131	+	static void set_gray_palette(void)
132	+	{
133	+	for (int i=0; i<256; i++) {
134	+	VidLocal.palette[i * 3 + 0] = 127;
135	+	VidLocal.palette[i * 3 + 1] = 127;
136	+	VidLocal.palette[i * 3 + 2] = 127;
137	+	}
138	+	video_set_palette(VidLocal.palette);
139	+	}
140	+
141	+
142	+	/*
143	+	*  Load gamma-corrected black-to-white ramp to palette for direct-color mode
144	+	*/
145	+
146	+	static void load_ramp_palette(void)
147	+	{
148	+	// Find tables for gamma correction
149	+	uint8 *red_gamma, *green_gamma, *blue_gamma;
150	+	bool have_gamma = false;
151	+	int data_width = 0;
152	+	if (VidLocal.gamma_table) {
153	+	uint32 table = VidLocal.gamma_table;
154	+	red_gamma = Mac2HostAddr(table + gFormulaData + ReadMacInt16(table + gFormulaSize));
155	+	int chan_cnt = ReadMacInt16(table + gChanCnt);
156	+	if (chan_cnt == 1)
157	+	green_gamma = blue_gamma = red_gamma;
158	+	else {
159	+	int ofs = ReadMacInt16(table + gDataCnt);
160	+	green_gamma = red_gamma + ofs;
161	+	blue_gamma = green_gamma + ofs;
162	+	}
163	+	data_width = ReadMacInt16(table + gDataWidth);
164	+	have_gamma = true;
165	+	}
166	+
167	+	int num = (VidLocal.desc->mode.depth == VDEPTH_16BIT ? 32 : 256);
168	+	uint8 *p = VidLocal.palette;
169	+	for (int i=0; i<num; i++) {
170	+	uint8 red = (i * 256 / num), green = red, blue = red;
171	+	if (have_gamma) {
172	+	red = red_gamma[red >> (8 - data_width)];
173	+	green = green_gamma[green >> (8 - data_width)];
174	+	blue = blue_gamma[blue >> (8 - data_width)];
175	+	}
176	+	*p++ = red;
177	+	*p++ = green;
178	+	*p++ = blue;
179	+	}
180	+
181	+	video_set_palette(VidLocal.palette);
182	+	}
183	+
184	+
185	+	/*
186	+	*  Allocate gamma table of specified size
187	+	*/
188	+
189	+	static bool allocate_gamma_table(int size)
190	+	{
191	+	M68kRegisters r;
192	+
193	+	if (size > VidLocal.alloc_gamma_table_size) {
194	+	if (VidLocal.gamma_table) {
195	+	r.a[0] = VidLocal.gamma_table;
196	+	Execute68kTrap(0xa01f, &r);     // DisposePtr()
197	+	VidLocal.gamma_table = 0;
198	+	VidLocal.alloc_gamma_table_size = 0;
199	+	}
200	+	r.d[0] = size;
201	+	Execute68kTrap(0xa71e, &r);     // NewPtrSysClear()
202	+	if (r.a[0] == 0)
203	+	return false;
204	+	VidLocal.gamma_table = r.a[0];
205	+	VidLocal.alloc_gamma_table_size = size;
206	+	}
207	+	return true;
208	+	}
209	+
210	+
211	+	/*
212	+	*  Set gamma table (0 = build linear ramp)
213	+	*/
214	+
215	+	static bool set_gamma_table(uint32 user_table)
216	+	{
217	+	if (user_table == 0) { // Build linear ramp, 256 entries
218	+
219	+	// Allocate new table, if necessary
220	+	if (!allocate_gamma_table(SIZEOF_GammaTbl + 256))
221	+	return memFullErr;
222	+	uint32 table = VidLocal.gamma_table;
223	+
224	+	// Initialize header
225	+	WriteMacInt16(table + gVersion, 0);
226	+	WriteMacInt16(table + gType, 0);
227	+	WriteMacInt16(table + gFormulaSize, 0);
228	+	WriteMacInt16(table + gChanCnt, 1);
229	+	WriteMacInt16(table + gDataCnt, 256);
230	+	WriteMacInt16(table + gDataWidth, 8);
231	+
232	+	// Build ramp
233	+	uint32 p = table + gFormulaData;
234	+	for (int i=0; i<256; i++)
235	+	WriteMacInt8(p + i, i);
236	+
237	+	} else { // User-supplied gamma table
238	+
239	+	// Validate header
240	+	if (ReadMacInt16(user_table + gVersion))
241	+	return paramErr;
242	+	if (ReadMacInt16(user_table + gType))
243	+	return paramErr;
244	+	int chan_cnt = ReadMacInt16(user_table + gChanCnt);
245	+	if (chan_cnt != 1 && chan_cnt != 3)
246	+	return paramErr;
247	+	int data_width = ReadMacInt16(user_table + gDataWidth);
248	+	if (data_width > 8)
249	+	return paramErr;
250	+	int data_cnt = ReadMacInt16(user_table + gDataCnt);
251	+	if (data_cnt != (1 << data_width))
252	+	return paramErr;
253	+
254	+	// Allocate new table, if necessary
255	+	int size = SIZEOF_GammaTbl + ReadMacInt16(user_table + gFormulaSize) + chan_cnt * data_cnt;
256	+	if (!allocate_gamma_table(size))
257	+	return memFullErr;
258	+	uint32 table = VidLocal.gamma_table;
259	+
260	+	// Copy table
261	+	Mac2Mac_memcpy(table, user_table, size);
262	+	}
263	+
264	+	if (IsDirectMode(VidLocal.current_mode))
265	+	load_ramp_palette();
266	+
267	+	return true;
268	+	}
269	+
270	+
271	+	/*
272	+	*  Switch video mode
273	+	*/
274	+
275	+	static void switch_mode(const video_mode &mode, uint32 param, uint32 dce)
276	+	{
277	+	// Switch mode
278	+	set_gray_palette();
279	+	video_switch_to_mode(mode);
280	+
281	+	// Update VidLocal
282	+	VidLocal.current_mode = DepthToAppleMode(mode.depth);
283	+	VidLocal.current_id = mode.resolution_id;
284	+
285	+	uint32 frame_base = VidLocal.desc->mac_frame_base;
286	+
287	+	M68kRegisters r;
288	+	uint32 sp = VidLocal.slot_param;
289	+	r.a[0] = sp;
290	+
291	+	// Find functional sResource for this display
292	+	WriteMacInt8(sp + spSlot, ReadMacInt8(dce + dCtlSlot));
293	+	WriteMacInt8(sp + spID, ReadMacInt8(dce + dCtlSlotId));
294	+	WriteMacInt8(sp + spExtDev, 0);
295	+	r.d[0] = 0x0016;
296	+	Execute68kTrap(0xa06e, &r);     // SRsrcInfo()
297	+	uint32 rsrc = ReadMacInt32(sp + spPointer);
298	+
299	+	// Patch minorBase (otherwise rebooting won't work)
300	+	WriteMacInt8(sp + spID, 0x0a); // minorBase
301	+	r.d[0] = 0x0006;
302	+	Execute68kTrap(0xa06e, &r); // SFindStruct()
303	+	uint32 minor_base = ReadMacInt32(sp + spPointer) - ROMBaseMac;
304	+	ROMBaseHost[minor_base + 0] = frame_base >> 24;
305	+	ROMBaseHost[minor_base + 1] = frame_base >> 16;
306	+	ROMBaseHost[minor_base + 2] = frame_base >> 8;
307	+	ROMBaseHost[minor_base + 3] = frame_base;
308	+
309	+	// Patch video mode parameter table
310	+	WriteMacInt32(sp + spPointer, rsrc);
311	+	WriteMacInt8(sp + spID, DepthToAppleMode(mode.depth));
312	+	r.d[0] = 0x0006;
313	+	Execute68kTrap(0xa06e, &r); // SFindStruct()
314	+	WriteMacInt8(sp + spID, 0x01);
315	+	r.d[0] = 0x0006;
316	+	Execute68kTrap(0xa06e, &r); // SFindStruct()
317	+	uint32 p = ReadMacInt32(sp + spPointer) - ROMBaseMac;
318	+	ROMBaseHost[p +  8] = mode.bytes_per_row >> 8;
319	+	ROMBaseHost[p +  9] = mode.bytes_per_row;
320	+	ROMBaseHost[p + 14] = mode.y >> 8;
321	+	ROMBaseHost[p + 15] = mode.y;
322	+	ROMBaseHost[p + 16] = mode.x >> 8;
323	+	ROMBaseHost[p + 17] = mode.x;
324	+
325	+	// Recalculate slot ROM checksum
326	+	ChecksumSlotROM();
327	+
328	+	// Update sResource
329	+	WriteMacInt8(sp + spID, ReadMacInt8(dce + dCtlSlotId));
330	+	r.d[0] = 0x002b;
331	+	Execute68kTrap(0xa06e, &r); // SUpdateSRT()
332	+
333	+	// Update frame buffer base in DCE and param block
334	+	WriteMacInt32(dce + dCtlDevBase, frame_base);
335	+	WriteMacInt32(param + csBaseAddr, frame_base);
336	+	}
337	+
338	+
339	+	/*
340		*  Driver Open() routine
341		*/
342
#	Line 58 | Line 344 | int16 VideoDriverOpen(uint32 pb, uint32
344		{
345		D(bug("VideoDriverOpen\n"));
346
347	+	// This shouldn't happen unless the platform-specific video code is broken
348	+	if (VideoModes.empty())
349	+	fprintf(stderr, "No valid video modes found (broken video driver?)\n");
350	+
351		// Init local variables
352		VidLocal.desc = &VideoMonitor;
353		VidLocal.luminance_mapping = false;
354		VidLocal.interrupts_enabled = false;
355	+	VidLocal.current_mode = DepthToAppleMode(VidLocal.desc->mode.depth);
356	+	VidLocal.current_id = VidLocal.desc->mode.resolution_id;
357	+	VidLocal.preferred_mode = VidLocal.current_mode;
358	+	VidLocal.preferred_id = VidLocal.current_id;
359	+
360	+	// Allocate Slot Manager parameter block in Mac RAM
361	+	M68kRegisters r;
362	+	r.d[0] = SIZEOF_SPBlock;
363	+	Execute68kTrap(0xa71e, &r);     // NewPtrSysClear()
364	+	if (r.a[0] == 0)
365	+	return memFullErr;
366	+	VidLocal.slot_param = r.a[0];
367	+	D(bug("SPBlock at %08x\n", VidLocal.slot_param));
368	+
369	+	// Find and set default gamma table
370	+	VidLocal.gamma_table = 0;
371	+	VidLocal.alloc_gamma_table_size = 0;
372	+	set_gamma_table(0);
373
374		// Init color palette (solid gray)
375	<	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	<	}
375	>	set_gray_palette();
376		return noErr;
377		}
378
#	Line 87 | Line 388 | int16 VideoDriverControl(uint32 pb, uint
388		D(bug("VideoDriverControl %d\n", code));
389		switch (code) {
390
391	<	case cscSetMode:                // Set color depth
392	<	D(bug(" SetMode %04x\n", ReadMacInt16(param + csMode)));
391	>	case cscSetMode: {              // Set color depth
392	>	uint16 mode = ReadMacInt16(param + csMode);
393	>	D(bug(" SetMode %04x\n", mode));
394	>
395	>	// Set old base address in case the switch fails
396		WriteMacInt32(param + csBaseAddr, VidLocal.desc->mac_frame_base);
397	+
398	+	if (ReadMacInt16(param + csPage))
399	+	return paramErr;
400	+
401	+	if (mode != VidLocal.current_mode) {
402	+	vector<video_mode>::const_iterator i = find_mode(mode, VidLocal.current_id);
403	+	if (i == VideoModes.end())
404	+	return paramErr;
405	+	switch_mode(*i, param, dce);
406	+	}
407	+	D(bug("  base %08x\n", VidLocal.desc->mac_frame_base));
408		return noErr;
409	+	}
410
411	<	case cscSetEntries: {   // Set palette
412	<	D(bug(" SetEntries table %08lx, count %d, start %d\n", ReadMacInt32(param + csTable), ReadMacInt16(param + csCount), ReadMacInt16(param + csStart)));
413	<	if (IsDirectMode(VidLocal.desc->mode))
411	>	case cscSetEntries:             // Set palette
412	>	case cscDirectSetEntries: {
413	>	D(bug(" (Direct)SetEntries table %08x, count %d, start %d\n", ReadMacInt32(param + csTable), ReadMacInt16(param + csCount), ReadMacInt16(param + csStart)));
414	>	bool is_direct = IsDirectMode(VidLocal.current_mode);
415	>	if (code == cscSetEntries && is_direct)
416	>	return controlErr;
417	>	if (code == cscDirectSetEntries && !is_direct)
418		return controlErr;
419
420		uint32 s_pal = ReadMacInt32(param + csTable);   // Source palette
421		uint8 *d_pal;                                                                   // Destination palette
422	+	uint16 start = ReadMacInt16(param + csStart);
423		uint16 count = ReadMacInt16(param + csCount);
424	<	if (!s_pal || count > 255)
424	>	if (s_pal == 0 || count > 255)
425		return paramErr;
426
427	<	if (ReadMacInt16(param + csStart) == 0xffff) {  // Indexed
427	>	// Find tables for gamma correction
428	>	uint8 *red_gamma, *green_gamma, *blue_gamma;
429	>	bool have_gamma = false;
430	>	int data_width = 0;
431	>	if (VidLocal.gamma_table) {
432	>	uint32 table = VidLocal.gamma_table;
433	>	red_gamma = Mac2HostAddr(table + gFormulaData + ReadMacInt16(table + gFormulaSize));
434	>	int chan_cnt = ReadMacInt16(table + gChanCnt);
435	>	if (chan_cnt == 1)
436	>	green_gamma = blue_gamma = red_gamma;
437	>	else {
438	>	int ofs = ReadMacInt16(table + gDataCnt);
439	>	green_gamma = red_gamma + ofs;
440	>	blue_gamma = green_gamma + ofs;
441	>	}
442	>	data_width = ReadMacInt16(table + gDataWidth);
443	>	have_gamma = true;
444	>	}
445	>
446	>	// Convert palette
447	>	if (start == 0xffff) {  // Indexed
448		for (uint32 i=0; i<=count; i++) {
449	<	d_pal = VidLocal.palette + ReadMacInt16(s_pal) * 3;
449	>	d_pal = VidLocal.palette + (ReadMacInt16(s_pal) & 0xff) * 3;
450		uint8 red = (uint16)ReadMacInt16(s_pal + 2) >> 8;
451		uint8 green = (uint16)ReadMacInt16(s_pal + 4) >> 8;
452		uint8 blue = (uint16)ReadMacInt16(s_pal + 6) >> 8;
453	<	if (VidLocal.luminance_mapping)
453	>	if (VidLocal.luminance_mapping && !is_direct)
454		red = green = blue = (red * 0x4ccc + green * 0x970a + blue * 0x1c29) >> 16;
455	+	if (have_gamma) {
456	+	red = red_gamma[red >> (8 - data_width)];
457	+	green = green_gamma[green >> (8 - data_width)];
458	+	blue = blue_gamma[blue >> (8 - data_width)];
459	+	}
460		*d_pal++ = red;
461		*d_pal++ = green;
462		*d_pal++ = blue;
463		s_pal += 8;
464		}
465	<	} else {                                                                                // Sequential
466	<	d_pal = VidLocal.palette + ReadMacInt16(param + csStart) * 3;
465	>	} else {                                // Sequential
466	>	if (start + count > 255)
467	>	return paramErr;
468	>	d_pal = VidLocal.palette + start * 3;
469		for (uint32 i=0; i<=count; i++) {
470		uint8 red = (uint16)ReadMacInt16(s_pal + 2) >> 8;
471		uint8 green = (uint16)ReadMacInt16(s_pal + 4) >> 8;
472		uint8 blue = (uint16)ReadMacInt16(s_pal + 6) >> 8;
473	<	if (VidLocal.luminance_mapping)
473	>	if (VidLocal.luminance_mapping && !is_direct)
474		red = green = blue = (red * 0x4ccc + green * 0x970a + blue * 0x1c29) >> 16;
475	+	if (have_gamma) {
476	+	red = red_gamma[red >> (8 - data_width)];
477	+	green = green_gamma[green >> (8 - data_width)];
478	+	blue = blue_gamma[blue >> (8 - data_width)];
479	+	}
480		*d_pal++ = red;
481		*d_pal++ = green;
482		*d_pal++ = blue;
#	Line 134 | Line 487 | int16 VideoDriverControl(uint32 pb, uint
487		return noErr;
488		}
489
490	<	case cscSetGamma:               // Set gamma table
491	<	D(bug(" SetGamma\n"));
492	<	return noErr;
490	>	case cscSetGamma: {             // Set gamma table
491	>	uint32 user_table = ReadMacInt32(param + csGTable);
492	>	D(bug(" SetGamma %08x\n", user_table));
493	>	return set_gamma_table(user_table) ? noErr : memFullErr;
494	>	}
495
496		case cscGrayPage: {             // Fill page with dithered gray pattern
497		D(bug(" GrayPage %d\n", ReadMacInt16(param + csPage)));
#	Line 152 | Line 507 | int16 VideoDriverControl(uint32 pb, uint
507		0xffffffff              // 32 bpp
508		};
509		uint32 p = VidLocal.desc->mac_frame_base;
510	<	uint32 pat = pattern[VidLocal.desc->mode];
511	<	for (uint32 y=0; y<VidLocal.desc->y; y++) {
512	<	uint32 p2 = p;
513	<	for (uint32 x=0; x<VidLocal.desc->bytes_per_row / 4; x++) {
514	<	WriteMacInt32(p2, pat);
515	<	p2 += 4;
161	<	if (VidLocal.desc->mode == VMODE_32BIT)
510	>	uint32 pat = pattern[VidLocal.desc->mode.depth];
511	>	bool invert = (VidLocal.desc->mode.depth == VDEPTH_32BIT);
512	>	for (uint32 y=0; y<VidLocal.desc->mode.y; y++) {
513	>	for (uint32 x=0; x<VidLocal.desc->mode.bytes_per_row; x+=4) {
514	>	WriteMacInt32(p + x, pat);
515	>	if (invert)
516		pat = ~pat;
517		}
518	<	p += VidLocal.desc->bytes_per_row;
518	>	p += VidLocal.desc->mode.bytes_per_row;
519		pat = ~pat;
520		}
521	+
522	+	if (IsDirectMode(VidLocal.current_mode))
523	+	load_ramp_palette();
524	+
525		return noErr;
526		}
527
#	Line 172 | Line 530 | int16 VideoDriverControl(uint32 pb, uint
530		VidLocal.luminance_mapping = ReadMacInt8(param + csMode);
531		return noErr;
532
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	–
533		case cscSetInterrupt:   // Enable/disable VBL
534		D(bug(" SetInterrupt %02x\n", ReadMacInt8(param + csMode)));
535		VidLocal.interrupts_enabled = (ReadMacInt8(param + csMode) == 0);
536		return noErr;
537
538	+	case cscSetDefaultMode: { // Set default color depth
539	+	uint16 mode = ReadMacInt16(param + csMode);
540	+	D(bug(" SetDefaultMode %04x\n", mode));
541	+	VidLocal.preferred_mode = mode;
542	+	return noErr;
543	+	}
544	+
545	+	case cscSwitchMode: {   // Switch video mode (depth and resolution)
546	+	uint16 mode = ReadMacInt16(param + csMode);
547	+	uint32 id = ReadMacInt32(param + csData);
548	+	D(bug(" SwitchMode %04x, %08x\n", mode, id));
549	+
550	+	// Set old base address in case the switch fails
551	+	WriteMacInt32(param + csBaseAddr, VidLocal.desc->mac_frame_base);
552	+
553	+	if (ReadMacInt16(param + csPage))
554	+	return paramErr;
555	+
556	+	if (mode != VidLocal.current_mode || id != VidLocal.current_id) {
557	+	vector<video_mode>::const_iterator i = find_mode(mode, id);
558	+	if (i == VideoModes.end())
559	+	return paramErr;
560	+	switch_mode(*i, param, dce);
561	+	}
562	+	D(bug("  base %08x\n", VidLocal.desc->mac_frame_base));
563	+	return noErr;
564	+	}
565	+
566	+	case cscSavePreferredConfiguration: {
567	+	uint16 mode = ReadMacInt16(param + csMode);
568	+	uint32 id = ReadMacInt32(param + csData);
569	+	D(bug(" SavePreferredConfiguration %04x, %08x\n", mode, id));
570	+	VidLocal.preferred_mode = mode;
571	+	VidLocal.preferred_id = id;
572	+	return noErr;
573	+	}
574	+
575		default:
576		printf("WARNING: Unknown VideoDriverControl(%d)\n", code);
577		return controlErr;
#	Line 200 | Line 590 | int16 VideoDriverStatus(uint32 pb, uint3
590		D(bug("VideoDriverStatus %d\n", code));
591		switch (code) {
592
593	<	case cscGetPageCnt:                     // Get number of pages
594	<	D(bug(" GetPageCnt\n"));
593	>	case cscGetMode:                        // Get current color depth
594	>	D(bug(" GetMode -> %04x, base %08x\n", VidLocal.current_mode, VidLocal.desc->mac_frame_base));
595	>	WriteMacInt16(param + csMode, VidLocal.current_mode);
596	>	WriteMacInt16(param + csPage, 0);
597	>	WriteMacInt32(param + csBaseAddr, VidLocal.desc->mac_frame_base);
598	>	return noErr;
599	>
600	>	case cscGetEntries: {           // Read palette
601	>	D(bug(" GetEntries table %08x, count %d, start %d\n", ReadMacInt32(param + csTable), ReadMacInt16(param + csCount), ReadMacInt16(param + csStart)));
602	>
603	>	uint8 *s_pal;                                                                   // Source palette
604	>	uint32 d_pal = ReadMacInt32(param + csTable);   // Destination palette
605	>	uint16 start = ReadMacInt16(param + csStart);
606	>	uint16 count = ReadMacInt16(param + csCount);
607	>	if (d_pal == 0 || count > 255)
608	>	return paramErr;
609	>
610	>	if (start == 0xffff) {  // Indexed
611	>	for (uint32 i=0; i<=count; i++) {
612	>	s_pal = VidLocal.palette + (ReadMacInt16(d_pal) & 0xff) * 3;
613	>	uint8 red = *s_pal++;
614	>	uint8 green = *s_pal++;
615	>	uint8 blue = *s_pal++;
616	>	WriteMacInt16(d_pal + 2, red * 0x0101);
617	>	WriteMacInt16(d_pal + 4, green * 0x0101);
618	>	WriteMacInt16(d_pal + 6, blue * 0x0101);
619	>	d_pal += 8;
620	>	}
621	>	} else {                                // Sequential
622	>	if (start + count > 255)
623	>	return paramErr;
624	>	s_pal = VidLocal.palette + start * 3;
625	>	for (uint32 i=0; i<=count; i++) {
626	>	uint8 red = *s_pal++;
627	>	uint8 green = *s_pal++;
628	>	uint8 blue = *s_pal++;
629	>	WriteMacInt16(d_pal + 2, red * 0x0101);
630	>	WriteMacInt16(d_pal + 4, green * 0x0101);
631	>	WriteMacInt16(d_pal + 6, blue * 0x0101);
632	>	d_pal += 8;
633	>	}
634	>	}
635	>	return noErr;
636	>	}
637	>
638	>	case cscGetPages:                       // Get number of pages
639	>	D(bug(" GetPages -> 1\n"));
640		WriteMacInt16(param + csPage, 1);
641		return noErr;
642
643	<	case cscGetPageBase:            // Get page base address
644	<	D(bug(" GetPageBase\n"));
643	>	case cscGetBaseAddress:         // Get page base address
644	>	D(bug(" GetBaseAddress -> %08x\n", VidLocal.desc->mac_frame_base));
645		WriteMacInt32(param + csBaseAddr, VidLocal.desc->mac_frame_base);
646	<	return noErr;
646	>	if (ReadMacInt16(param + csPage))
647	>	return paramErr;
648	>	else
649	>	return noErr;
650
651		case cscGetGray:                        // Get luminance mapping flag
652	<	D(bug(" GetGray\n"));
653	<	WriteMacInt8(param + csMode, VidLocal.luminance_mapping ? 1 : 0);
652	>	D(bug(" GetGray -> %d\n", VidLocal.luminance_mapping));
653	>	WriteMacInt16(param, VidLocal.luminance_mapping ? 0x0100 : 0);
654		return noErr;
655
656		case cscGetInterrupt:           // Get interrupt disable flag
657	<	D(bug(" GetInterrupt\n"));
658	<	WriteMacInt8(param + csMode, VidLocal.interrupts_enabled ? 0 : 1);
657	>	D(bug(" GetInterrupt -> %d\n", VidLocal.interrupts_enabled));
658	>	WriteMacInt16(param, VidLocal.interrupts_enabled ? 0 : 0x0100);
659	>	return noErr;
660	>
661	>	case cscGetGamma:
662	>	D(bug(" GetGamma -> %08x\n", VidLocal.gamma_table));
663	>	WriteMacInt32(param + csGTable, VidLocal.gamma_table);
664		return noErr;
665
666	<	case cscGetDefaultMode:         // Get default video mode
667	<	D(bug(" GetDefaultMode\n"));
668	<	WriteMacInt8(param + csMode, 0x80);
666	>	case cscGetDefaultMode:         // Get default color depth
667	>	D(bug(" GetDefaultMode -> %04x\n", VidLocal.preferred_mode));
668	>	WriteMacInt16(param + csMode, VidLocal.preferred_mode);
669		return noErr;
670
671	<	case cscGetCurMode:                     // Get current video mode
672	<	D(bug(" GetCurMode\n"));
673	<	WriteMacInt16(param + csMode, 0x80);
674	<	WriteMacInt32(param + csData, 0x80);
671	>	case cscGetCurrentMode:         // Get current video mode (depth and resolution)
672	>	D(bug(" GetCurMode -> %04x/%08x, base %08x\n", VidLocal.current_mode, VidLocal.current_id, VidLocal.desc->mac_frame_base));
673	>	WriteMacInt16(param + csMode, VidLocal.current_mode);
674	>	WriteMacInt32(param + csData, VidLocal.current_id);
675		WriteMacInt16(param + csPage, 0);
676		WriteMacInt32(param + csBaseAddr, VidLocal.desc->mac_frame_base);
677		return noErr;
678
679		case cscGetConnection:          // Get monitor information
680		D(bug(" GetConnection\n"));
681	<	WriteMacInt16(param + csDisplayType, 6);                // 21" Multiscan
682	<	WriteMacInt8(param + csConnectTaggedType, 6);
683	<	WriteMacInt8(param + csConnectTaggedData, 0x23);
684	<	WriteMacInt32(param + csConnectFlags, 0x03);    // All modes valid and safe
681	>	WriteMacInt16(param + csDisplayType, 8);                // Modeless connection
682	>	WriteMacInt8(param + csConnectTaggedType, 0);
683	>	WriteMacInt8(param + csConnectTaggedData, 0);
684	>	WriteMacInt32(param + csConnectFlags, 0x43);    // All modes valid and safe, non-standard tagging
685		WriteMacInt32(param + csDisplayComponent, 0);
686		return noErr;
687
688	<	case cscGetModeTiming:          // Get video timing for mode
689	<	D(bug(" GetModeTiming mode %08lx\n", ReadMacInt32(param + csTimingMode)));
688	>	case cscGetModeTiming: {        // Get video timing for specified resolution
689	>	uint32 id = ReadMacInt32(param + csTimingMode);
690	>	D(bug(" GetModeTiming %08x\n", id));
691	>	if (!has_resolution(id))
692	>	return paramErr;
693	>
694		WriteMacInt32(param + csTimingFormat, FOURCC('d', 'e', 'c', 'l'));
695	<	WriteMacInt32(param + csTimingData, 220);               // 21" Multiscan
696	<	WriteMacInt32(param + csTimingFlags, 0x0f);             // Mode valid, safe, default and shown in Monitors panel
695	>	WriteMacInt32(param + csTimingData, 0); // unknown
696	>	uint32 flags = 0xb; // mode valid, safe and shown in Monitors panel
697	>	if (id == VidLocal.preferred_id)
698	>	flags |= 4; // default mode
699	>	WriteMacInt32(param + csTimingFlags, flags);
700		return noErr;
701	+	}
702
703		case cscGetModeBaseAddress:     // Get frame buffer base address
704	<	D(bug(" GetModeBaseAddress\n"));
705	<	WriteMacInt32(param + csBaseAddr, VidLocal.desc->mac_frame_base);       // Base address of video RAM for the current DisplayModeID and relative bit depth
704	>	D(bug(" GetModeBaseAddress -> base %08x\n", VidLocal.desc->mac_frame_base));
705	>	WriteMacInt32(param + csBaseAddr, VidLocal.desc->mac_frame_base);
706		return noErr;
707
708	<	case cscGetMode:                // REQUIRED for MacsBug
709	<	D(bug(" GetMode\n"));
710	<	WriteMacInt16(param + csPageMode, 0x80);
711	<	WriteMacInt32(param + csPageData, 0x80);        // Unused
712	<	WriteMacInt16(param + csPagePage, 0);   // Current display page
713	<	WriteMacInt32(param + csPageBaseAddr, VidLocal.desc->mac_frame_base);
708	>	case cscGetPreferredConfiguration: // Get default video mode (depth and resolution)
709	>	D(bug(" GetPreferredConfiguration -> %04x/%08x\n", VidLocal.preferred_mode, VidLocal.preferred_id));
710	>	WriteMacInt16(param + csMode, VidLocal.preferred_mode);
711	>	WriteMacInt32(param + csData, VidLocal.preferred_id);
712	>	return noErr;
713	>
714	>	case cscGetNextResolution: {    // Called iteratively to obtain a list of all supported resolutions
715	>	uint32 id = ReadMacInt32(param + csPreviousDisplayModeID);
716	>	D(bug(" GetNextResolution %08x\n", id));
717	>
718	>	switch (id) {
719	>	case 0:
720	>	// Return current resolution
721	>	id = VidLocal.current_id;
722	>	break;
723	>
724	>	case 0xfffffffe:
725	>	// Return first supported resolution
726	>	id = 0x80;
727	>	while (!has_resolution(id))
728	>	id++;
729	>	break;
730	>
731	>	default:
732	>	// Get next resolution
733	>	if (!has_resolution(id))
734	>	return paramErr;
735	>	id++;
736	>	while (!has_resolution(id) && id < 0x100)
737	>	id++;
738	>	if (id == 0x100) { // No more resolutions
739	>	WriteMacInt32(param + csRIDisplayModeID, 0xfffffffd);
740	>	return noErr;
741	>	}
742	>	break;
743	>	}
744	>
745	>	WriteMacInt32(param + csRIDisplayModeID, id);
746	>	uint32 x, y;
747	>	get_size_of_resolution(id, x, y);
748	>	WriteMacInt32(param + csHorizontalPixels, x);
749	>	WriteMacInt32(param + csVerticalLines, y);
750	>	WriteMacInt32(param + csRefreshRate, 75 << 16);
751	>	WriteMacInt16(param + csMaxDepthMode, DepthToAppleMode(max_depth_of_resolution(id)));
752		return noErr;
753	+	}
754	+
755	+	case cscGetVideoParameters: {   // Get information about specified resolution/depth
756	+	uint32 id = ReadMacInt32(param + csDisplayModeID);
757	+	uint16 mode = ReadMacInt16(param + csDepthMode);
758	+	D(bug(" GetVideoParameters %04x/%08x\n", mode, id));
759	+
760	+	vector<video_mode>::const_iterator i, end = VideoModes.end();
761	+	for (i = VideoModes.begin(); i != end; ++i) {
762	+	if (DepthToAppleMode(i->depth) == mode && i->resolution_id == id) {
763	+	uint32 vp = ReadMacInt32(param + csVPBlockPtr);
764	+	WriteMacInt32(vp + vpBaseOffset, 0);
765	+	WriteMacInt16(vp + vpRowBytes, i->bytes_per_row);
766	+	WriteMacInt16(vp + vpBounds, 0);
767	+	WriteMacInt16(vp + vpBounds + 2, 0);
768	+	WriteMacInt16(vp + vpBounds + 4, i->y);
769	+	WriteMacInt16(vp + vpBounds + 6, i->x);
770	+	WriteMacInt16(vp + vpVersion, 0);
771	+	WriteMacInt16(vp + vpPackType, 0);
772	+	WriteMacInt32(vp + vpPackSize, 0);
773	+	WriteMacInt32(vp + vpHRes, 0x00480000); // 72 dpi
774	+	WriteMacInt32(vp + vpVRes, 0x00480000);
775	+	uint32 pix_type, pix_size, cmp_count, cmp_size, dev_type;
776	+	switch (i->depth) {
777	+	case VDEPTH_1BIT:
778	+	pix_type = 0; pix_size = 1;
779	+	cmp_count = 1; cmp_size = 1;
780	+	dev_type = 0; // CLUT
781	+	break;
782	+	case VDEPTH_2BIT:
783	+	pix_type = 0; pix_size = 2;
784	+	cmp_count = 1; cmp_size = 2;
785	+	dev_type = 0; // CLUT
786	+	break;
787	+	case VDEPTH_4BIT:
788	+	pix_type = 0; pix_size = 4;
789	+	cmp_count = 1; cmp_size = 4;
790	+	dev_type = 0; // CLUT
791	+	break;
792	+	case VDEPTH_8BIT:
793	+	pix_type = 0; pix_size = 8;
794	+	cmp_count = 1; cmp_size = 8;
795	+	dev_type = 0; // CLUT
796	+	break;
797	+	case VDEPTH_16BIT:
798	+	pix_type = 0x10; pix_size = 16;
799	+	cmp_count = 3; cmp_size = 5;
800	+	dev_type = 2; // direct
801	+	break;
802	+	case VDEPTH_32BIT:
803	+	pix_type = 0x10; pix_size = 32;
804	+	cmp_count = 3; cmp_size = 8;
805	+	dev_type = 2; // direct
806	+	break;
807	+	}
808	+	WriteMacInt16(vp + vpPixelType, pix_type);
809	+	WriteMacInt16(vp + vpPixelSize, pix_size);
810	+	WriteMacInt16(vp + vpCmpCount, cmp_count);
811	+	WriteMacInt16(vp + vpCmpSize, cmp_size);
812	+	WriteMacInt32(param + csPageCount, 1);
813	+	WriteMacInt32(param + csDeviceType, dev_type);
814	+	return noErr;
815	+	}
816	+	}
817	+	return paramErr; // specified resolution/depth not supported
818	+	}
819
820		default:
821		printf("WARNING: Unknown VideoDriverStatus(%d)\n", code);

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