[ViewVC] Diff of: cebix/BasiliskII/src/Unix/video

Comparing BasiliskII/src/Unix/video_vosf.h (file contents):
Revision 1.26 by cebix, 2001-07-06T20:49:48Z vs.
Revision 1.61 by gbeauche, 2007-12-30T08:47:34Z

#	Line 1 \| Line 1
1		/*
2		* video_vosf.h - Video/graphics emulation, video on SEGV signals support
3		*
4	<	* Basilisk II (C) 1997-2001 Christian Bauer
4	>	* Basilisk II (C) 1997-2005 Christian Bauer
5		*
6		* This program is free software; you can redistribute it and/or modify
7		* it under the terms of the GNU General Public License as published by
#	Line 21 \| Line 21
21		#ifndef VIDEO_VOSF_H
22		#define VIDEO_VOSF_H
23
24	<	// Note: this file is #include'd in video_x.cpp
24	>	// Note: this file must be #include'd only in video_x.cpp
25		#ifdef ENABLE_VOSF
26
27	–	#include <fcntl.h>
28	–	#include <sys/mman.h>
27		#include "sigsegv.h"
28		#include "vm_alloc.h"
29	+	#ifdef _WIN32
30	+	#include "util_windows.h"
31	+	#endif
32
33	<	#ifdef ENABLE_MON
34	<	# include "mon.h"
33	>	// Glue for SDL and X11 support
34	>	#ifdef TEST_VOSF_PERFORMANCE
35	>	#define MONITOR_INIT /* nothing */
36	>	#else
37	>	#ifdef USE_SDL_VIDEO
38	>	#define MONITOR_INIT SDL_monitor_desc &monitor
39	>	#define VIDEO_DRV_WIN_INIT driver_window *drv
40	>	#define VIDEO_DRV_DGA_INIT driver_fullscreen *drv
41	>	#define VIDEO_DRV_LOCK_PIXELS SDL_VIDEO_LOCK_SURFACE(drv->s)
42	>	#define VIDEO_DRV_UNLOCK_PIXELS SDL_VIDEO_UNLOCK_SURFACE(drv->s)
43	>	#define VIDEO_DRV_DEPTH drv->s->format->BitsPerPixel
44	>	#define VIDEO_DRV_WIDTH drv->s->w
45	>	#define VIDEO_DRV_HEIGHT drv->s->h
46	>	#define VIDEO_DRV_ROW_BYTES drv->s->pitch
47	>	#else
48	>	#ifdef SHEEPSHAVER
49	>	#define MONITOR_INIT /* nothing */
50	>	#define VIDEO_DRV_WIN_INIT /* nothing */
51	>	#define VIDEO_DRV_DGA_INIT /* nothing */
52	>	#define VIDEO_DRV_WINDOW the_win
53	>	#define VIDEO_DRV_GC the_gc
54	>	#define VIDEO_DRV_IMAGE img
55	>	#define VIDEO_DRV_HAVE_SHM have_shm
56	>	#else
57	>	#define MONITOR_INIT X11_monitor_desc &monitor
58	>	#define VIDEO_DRV_WIN_INIT driver_window *drv
59	>	#define VIDEO_DRV_DGA_INIT driver_dga *drv
60	>	#define VIDEO_DRV_WINDOW drv->w
61	>	#define VIDEO_DRV_GC drv->gc
62	>	#define VIDEO_DRV_IMAGE drv->img
63	>	#define VIDEO_DRV_HAVE_SHM drv->have_shm
64	>	#endif
65	>	#define VIDEO_DRV_LOCK_PIXELS /* nothing */
66	>	#define VIDEO_DRV_UNLOCK_PIXELS /* nothing */
67	>	#define VIDEO_DRV_DEPTH VIDEO_DRV_IMAGE->depth
68	>	#define VIDEO_DRV_WIDTH VIDEO_DRV_IMAGE->width
69	>	#define VIDEO_DRV_HEIGHT VIDEO_DRV_IMAGE->height
70	>	#define VIDEO_DRV_ROW_BYTES VIDEO_DRV_IMAGE->bytes_per_line
71	>	#endif
72		#endif
73
74	+	// Prototypes
75	+	static void vosf_do_set_dirty_area(uintptr first, uintptr last);
76	+	static void vosf_set_dirty_area(int x, int y, int w, int h, int screen_width, int screen_height, int bytes_per_row);
77	+
78		// Variables for Video on SEGV support
79		static uint8 *the_host_buffer; // Host frame buffer in VOSF mode
38	–	static uint32 the_buffer_size; // Size of allocated the_buffer
80
81		struct ScreenPageInfo {
82		int top, bottom; // Mapping between this virtual page and Mac scanlines
83		};
84
85		struct ScreenInfo {
45	–	uintptr memBase; // Real start address
86		uintptr memStart; // Start address aligned to page boundary
47	–	uintptr memEnd; // Address of one-past-the-end of the screen
87		uint32 memLength; // Length of the memory addressed by the screen pages
88
89	<	uint32 pageSize; // Size of a page
89	>	uintptr pageSize; // Size of a page
90		int pageBits; // Shift count to get the page number
91		uint32 pageCount; // Number of pages allocated to the screen
92
93		bool dirty; // Flag: set if the frame buffer was touched
94	+	bool very_dirty; // Flag: set if the frame buffer was completely modified (e.g. colormap changes)
95		char * dirtyPages; // Table of flags set if page was altered
96		ScreenPageInfo * pageInfo; // Table of mappings page -> Mac scanlines
97		};
#	Line 97 \| Line 137 \| static ScreenInfo mainBuffer;
137		#define PFLAG_CLEAR_ALL do { \
138		PFLAG_CLEAR_RANGE(0, mainBuffer.pageCount); \
139		mainBuffer.dirty = false; \
140	+	mainBuffer.very_dirty = false; \
141	+	} while (0)
142	+
143	+	#define PFLAG_SET_VERY_DIRTY do { \
144	+	mainBuffer.very_dirty = true; \
145		} while (0)
146
147		// Set the following macro definition to 1 if your system
#	Line 131 \| Line 176 \| static inline int find_next_page_clear(i
176		#endif
177		}
178
179	<	#ifdef HAVE_PTHREADS
179	>	#if defined(HAVE_PTHREADS)
180		static pthread_mutex_t vosf_lock = PTHREAD_MUTEX_INITIALIZER; // Mutex to protect frame buffer (dirtyPages in fact)
181		#define LOCK_VOSF pthread_mutex_lock(&vosf_lock);
182		#define UNLOCK_VOSF pthread_mutex_unlock(&vosf_lock);
183	+	#elif defined(_WIN32)
184	+	static mutex_t vosf_lock; // Mutex to protect frame buffer (dirtyPages in fact)
185	+	#define LOCK_VOSF vosf_lock.lock();
186	+	#define UNLOCK_VOSF vosf_lock.unlock();
187	+	#elif defined(HAVE_SPINLOCKS)
188	+	static spinlock_t vosf_lock = SPIN_LOCK_UNLOCKED; // Mutex to protect frame buffer (dirtyPages in fact)
189	+	#define LOCK_VOSF spin_lock(&vosf_lock)
190	+	#define UNLOCK_VOSF spin_unlock(&vosf_lock)
191		#else
192		#define LOCK_VOSF
193		#define UNLOCK_VOSF
#	Line 154 \| Line 207 \| static int log_base_2(uint32 x)
207		// Extend size to page boundary
208		static uint32 page_extend(uint32 size)
209		{
210	<	const uint32 page_size = getpagesize();
210	>	const uint32 page_size = vm_get_page_size();
211		const uint32 page_mask = page_size - 1;
212		return (size + page_mask) & ~page_mask;
213		}
214
215
216		/*
217	<	* Initialize mainBuffer structure
217	>	* Check if VOSF acceleration is profitable on this platform
218		*/
219
220	<	static bool video_init_buffer(void)
220	>	const int VOSF_PROFITABLE_TRIES = 3; // Make 3 attempts for full screen update
221	>	const int VOSF_PROFITABLE_THRESHOLD = 16667/2; // 60 Hz (half of the quantum)
222	>
223	>	static bool video_vosf_profitable(void)
224		{
225	<	if (use_vosf) {
226	<	const uint32 page_size = getpagesize();
171	<	const uint32 page_mask = page_size - 1;
172	<
173	<	mainBuffer.memBase = (uintptr) the_buffer;
174	<	// Round up frame buffer base to page boundary
175	<	mainBuffer.memStart = (uintptr)((((unsigned long) the_buffer) + page_mask) & ~page_mask);
176	<	mainBuffer.memLength = the_buffer_size;
177	<	mainBuffer.memEnd = mainBuffer.memStart + mainBuffer.memLength;
178	<
179	<	mainBuffer.pageSize = page_size;
180	<	mainBuffer.pageCount = (mainBuffer.memLength + page_mask)/mainBuffer.pageSize;
181	<	mainBuffer.pageBits = log_base_2(mainBuffer.pageSize);
182	<
183	<	if (mainBuffer.dirtyPages) {
184	<	free(mainBuffer.dirtyPages);
185	<	mainBuffer.dirtyPages = NULL;
186	<	}
225	>	uint32 duration = 0;
226	>	const uint32 n_page_faults = mainBuffer.pageCount * VOSF_PROFITABLE_TRIES;
227
228	<	mainBuffer.dirtyPages = (char *) malloc(mainBuffer.pageCount + 2);
228	>	#ifdef SHEEPSHAVER
229	>	const bool accel = PrefsFindBool("gfxaccel");
230	>	#else
231	>	const bool accel = false;
232	>	#endif
233
234	<	if (mainBuffer.pageInfo) {
235	<	free(mainBuffer.pageInfo);
236	<	mainBuffer.pageInfo = NULL;
234	>	for (int i = 0; i < VOSF_PROFITABLE_TRIES; i++) {
235	>	uint64 start = GetTicks_usec();
236	>	for (int p = 0; p < mainBuffer.pageCount; p++) {
237	>	uint8 addr = (uint8 )(mainBuffer.memStart + (p * mainBuffer.pageSize));
238	>	if (accel)
239	>	vosf_do_set_dirty_area((uintptr)addr, (uintptr)addr + mainBuffer.pageSize - 1);
240	>	else
241	>	addr[0] = 0; // Trigger Screen_fault_handler()
242		}
243	<
244	<	mainBuffer.pageInfo = (ScreenPageInfo ) malloc(mainBuffer.pageCount sizeof(ScreenPageInfo));
196	<
197	<	if ((mainBuffer.dirtyPages == NULL) \|\| (mainBuffer.pageInfo == NULL))
198	<	return false;
199	<
200	<	mainBuffer.dirty = false;
243	>	uint64 elapsed = GetTicks_usec() - start;
244	>	duration += elapsed;
245
246		PFLAG_CLEAR_ALL;
247	<	// Safety net to insure the loops in the update routines will terminate
204	<	// See "How can we deal with array overrun conditions ?" hereunder for further details
205	<	PFLAG_CLEAR(mainBuffer.pageCount);
206	<	PFLAG_SET(mainBuffer.pageCount+1);
207	<
208	<	uint32 a = 0;
209	<	for (int i = 0; i < mainBuffer.pageCount; i++) {
210	<	int y1 = a / VideoMonitor.mode.bytes_per_row;
211	<	if (y1 >= VideoMonitor.mode.y)
212	<	y1 = VideoMonitor.mode.y - 1;
213	<
214	<	int y2 = (a + mainBuffer.pageSize) / VideoMonitor.mode.bytes_per_row;
215	<	if (y2 >= VideoMonitor.mode.y)
216	<	y2 = VideoMonitor.mode.y - 1;
217	<
218	<	mainBuffer.pageInfo[i].top = y1;
219	<	mainBuffer.pageInfo[i].bottom = y2;
220	<
221	<	a += mainBuffer.pageSize;
222	<	if (a > mainBuffer.memLength)
223	<	a = mainBuffer.memLength;
224	<	}
225	<
226	<	// We can now write-protect the frame buffer
247	>	mainBuffer.dirty = false;
248		if (vm_protect((char *)mainBuffer.memStart, mainBuffer.memLength, VM_PAGE_READ) != 0)
249		return false;
250		}
251	+
252	+	D(bug("Triggered %d page faults in %ld usec (%.1f usec per fault)\n", n_page_faults, duration, double(duration) / double(n_page_faults)));
253	+	return ((duration / VOSF_PROFITABLE_TRIES) < (VOSF_PROFITABLE_THRESHOLD * (frame_skip ? frame_skip : 1)));
254	+	}
255	+
256	+
257	+	/*
258	+	* Initialize the VOSF system (mainBuffer structure, SIGSEGV handler)
259	+	*/
260	+
261	+	static bool video_vosf_init(MONITOR_INIT)
262	+	{
263	+	VIDEO_MODE_INIT_MONITOR;
264	+
265	+	const uintptr page_size = vm_get_page_size();
266	+	const uintptr page_mask = page_size - 1;
267	+
268	+	// Round up frame buffer base to page boundary
269	+	mainBuffer.memStart = (((uintptr) the_buffer) + page_mask) & ~page_mask;
270	+
271	+	// The frame buffer size shall already be aligned to page boundary (use page_extend)
272	+	mainBuffer.memLength = the_buffer_size;
273	+
274	+	mainBuffer.pageSize = page_size;
275	+	mainBuffer.pageBits = log_base_2(mainBuffer.pageSize);
276	+	mainBuffer.pageCount = (mainBuffer.memLength + page_mask)/mainBuffer.pageSize;
277	+
278	+	// The "2" more bytes requested are a safety net to insure the
279	+	// loops in the update routines will terminate.
280	+	// See "How can we deal with array overrun conditions ?" hereunder for further details.
281	+	mainBuffer.dirtyPages = (char *) malloc(mainBuffer.pageCount + 2);
282	+	if (mainBuffer.dirtyPages == NULL)
283	+	return false;
284	+
285	+	PFLAG_CLEAR_ALL;
286	+	PFLAG_CLEAR(mainBuffer.pageCount);
287	+	PFLAG_SET(mainBuffer.pageCount+1);
288	+
289	+	// Allocate and fill in pageInfo with start and end (inclusive) row in number of bytes
290	+	mainBuffer.pageInfo = (ScreenPageInfo ) malloc(mainBuffer.pageCount sizeof(ScreenPageInfo));
291	+	if (mainBuffer.pageInfo == NULL)
292	+	return false;
293	+
294	+	uint32 a = 0;
295	+	for (unsigned i = 0; i < mainBuffer.pageCount; i++) {
296	+	unsigned y1 = a / VIDEO_MODE_ROW_BYTES;
297	+	if (y1 >= VIDEO_MODE_Y)
298	+	y1 = VIDEO_MODE_Y - 1;
299	+
300	+	unsigned y2 = (a + mainBuffer.pageSize) / VIDEO_MODE_ROW_BYTES;
301	+	if (y2 >= VIDEO_MODE_Y)
302	+	y2 = VIDEO_MODE_Y - 1;
303	+
304	+	mainBuffer.pageInfo[i].top = y1;
305	+	mainBuffer.pageInfo[i].bottom = y2;
306	+
307	+	a += mainBuffer.pageSize;
308	+	if (a > mainBuffer.memLength)
309	+	a = mainBuffer.memLength;
310	+	}
311	+
312	+	// We can now write-protect the frame buffer
313	+	if (vm_protect((char *)mainBuffer.memStart, mainBuffer.memLength, VM_PAGE_READ) != 0)
314	+	return false;
315	+
316	+	// The frame buffer is sane, i.e. there is no write to it yet
317	+	mainBuffer.dirty = false;
318		return true;
319		}
320
321
322		/*
323	+	* Deinitialize VOSF system
324	+	*/
325	+
326	+	static void video_vosf_exit(void)
327	+	{
328	+	if (mainBuffer.pageInfo) {
329	+	free(mainBuffer.pageInfo);
330	+	mainBuffer.pageInfo = NULL;
331	+	}
332	+	if (mainBuffer.dirtyPages) {
333	+	free(mainBuffer.dirtyPages);
334	+	mainBuffer.dirtyPages = NULL;
335	+	}
336	+	}
337	+
338	+
339	+	/*
340	+	* Update VOSF state with specified dirty area
341	+	*/
342	+
343	+	static void vosf_do_set_dirty_area(uintptr first, uintptr last)
344	+	{
345	+	const int first_page = (first - mainBuffer.memStart) >> mainBuffer.pageBits;
346	+	const int last_page = (last - mainBuffer.memStart) >> mainBuffer.pageBits;
347	+	uint8 addr = (uint8 )(first & -mainBuffer.pageSize);
348	+	for (int i = first_page; i <= last_page; i++) {
349	+	if (PFLAG_ISCLEAR(i)) {
350	+	PFLAG_SET(i);
351	+	vm_protect(addr, mainBuffer.pageSize, VM_PAGE_READ \| VM_PAGE_WRITE);
352	+	}
353	+	addr += mainBuffer.pageSize;
354	+	}
355	+	}
356	+
357	+	static void vosf_set_dirty_area(int x, int y, int w, int h, int screen_width, int screen_height, int bytes_per_row)
358	+	{
359	+	if (x < 0) {
360	+	w -= -x;
361	+	x = 0;
362	+	}
363	+	if (y < 0) {
364	+	h -= -y;
365	+	y = 0;
366	+	}
367	+	if (w <= 0 \|\| h <= 0)
368	+	return;
369	+	if (x + w > screen_width)
370	+	w -= (x + w) - screen_width;
371	+	if (y + h > screen_height)
372	+	h -= (y + h) - screen_height;
373	+	LOCK_VOSF;
374	+	if (bytes_per_row >= screen_width) {
375	+	const int bytes_per_pixel = bytes_per_row / screen_width;
376	+	if (bytes_per_row <= mainBuffer.pageSize) {
377	+	const uintptr a0 = mainBuffer.memStart + y * bytes_per_row + x * bytes_per_pixel;
378	+	const uintptr a1 = mainBuffer.memStart + (y + h - 1) * bytes_per_row + (x + w - 1) * bytes_per_pixel;
379	+	vosf_do_set_dirty_area(a0, a1);
380	+	} else {
381	+	for (int j = y; j < y + h; j++) {
382	+	const uintptr a0 = mainBuffer.memStart + j * bytes_per_row + x * bytes_per_pixel;
383	+	const uintptr a1 = a0 + (w - 1) * bytes_per_pixel;
384	+	vosf_do_set_dirty_area(a0, a1);
385	+	}
386	+	}
387	+	} else {
388	+	const int pixels_per_byte = screen_width / bytes_per_row;
389	+	if (bytes_per_row <= mainBuffer.pageSize) {
390	+	const uintptr a0 = mainBuffer.memStart + y * bytes_per_row + x / pixels_per_byte;
391	+	const uintptr a1 = mainBuffer.memStart + (y + h - 1) * bytes_per_row + (x + w - 1) / pixels_per_byte;
392	+	vosf_do_set_dirty_area(a0, a1);
393	+	} else {
394	+	for (int j = y; j < y + h; j++) {
395	+	const uintptr a0 = mainBuffer.memStart + j * bytes_per_row + x / pixels_per_byte;
396	+	const uintptr a1 = mainBuffer.memStart + j * bytes_per_row + (x + w - 1) / pixels_per_byte;
397	+	vosf_do_set_dirty_area(a0, a1);
398	+	}
399	+	}
400	+	}
401	+	mainBuffer.dirty = true;
402	+	UNLOCK_VOSF;
403	+	}
404	+
405	+
406	+	/*
407		* Screen fault handler
408		*/
409
410	<	static bool screen_fault_handler(sigsegv_address_t fault_address, sigsegv_address_t fault_instruction)
410	>	bool Screen_fault_handler(sigsegv_info_t *sip)
411		{
412	<	// D(bug("screen_fault_handler: ADDR=0x%08X from IP=0x%08X\n", fault_address, fault_instruction));
241	<	const uintptr addr = (uintptr)fault_address;
412	>	const uintptr addr = (uintptr)sigsegv_get_fault_address(sip);
413
414		/* Someone attempted to write to the frame buffer. Make it writeable
415		* now so that the data could actually be written to. It will be made
416		* read-only back in one of the screen update_*() functions.
417		*/
418	<	if ((addr >= mainBuffer.memStart) && (addr < mainBuffer.memEnd)) {
419	<	const int page = (addr - mainBuffer.memStart) >> mainBuffer.pageBits;
249	<	caddr_t page_ad = (caddr_t)(addr & -mainBuffer.pageSize);
418	>	if (((uintptr)addr - mainBuffer.memStart) < mainBuffer.memLength) {
419	>	const int page = ((uintptr)addr - mainBuffer.memStart) >> mainBuffer.pageBits;
420		LOCK_VOSF;
421	<	PFLAG_SET(page);
422	<	vm_protect((char *)page_ad, mainBuffer.pageSize, VM_PAGE_READ \| VM_PAGE_WRITE);
421	>	if (PFLAG_ISCLEAR(page)) {
422	>	PFLAG_SET(page);
423	>	vm_protect((char *)(addr & -mainBuffer.pageSize), mainBuffer.pageSize, VM_PAGE_READ \| VM_PAGE_WRITE);
424	>	}
425		mainBuffer.dirty = true;
426		UNLOCK_VOSF;
427		return true;
428		}
429
430		/* Otherwise, we don't know how to handle the fault, let it crash */
259	–	fprintf(stderr, "do_handle_screen_fault: unhandled address 0x%08X", addr);
260	–	if (fault_instruction != SIGSEGV_INVALID_PC)
261	–	fprintf(stderr, " [IP=0x%08X]", fault_instruction);
262	–	fprintf(stderr, "\n");
263	–	#if EMULATED_68K
264	–	uaecptr nextpc;
265	–	extern void m68k_dumpstate(uaecptr *nextpc);
266	–	m68k_dumpstate(&nextpc);
267	–	#endif
268	–	VideoQuitFullScreen();
269	–	#ifdef ENABLE_MON
270	–	char *arg[4] = {"mon", "-m", "-r", NULL};
271	–	mon(3, arg);
272	–	QuitEmulator();
273	–	#endif
431		return false;
432		}
433
#	Line 279 \| Line 436 \| static bool screen_fault_handler(sigsegv
436		* Update display for Windowed mode and VOSF
437		*/
438
282	–	// From video_blit.cpp
283	–	extern void (Screen_blit)(uint8 dest, const uint8 * source, uint32 length);
284	–	extern bool Screen_blitter_init(XVisualInfo * visual_info, bool native_byte_order, video_depth mac_depth);
285	–	extern uint32 ExpandMap[256];
286	–
439		/* How can we deal with array overrun conditions ?
440
441		The state of the framebuffer pages that have been touched are maintained
#	Line 317 \| Line 469 \| There are two cases to check:
469		than pageCount.
470		*/
471
472	<	static inline void update_display_window_vosf(driver_window *drv)
472	>	#ifndef TEST_VOSF_PERFORMANCE
473	>	static void update_display_window_vosf(VIDEO_DRV_WIN_INIT)
474		{
475	+	VIDEO_MODE_INIT;
476	+
477		int page = 0;
478		for (;;) {
479	<	const int first_page = find_next_page_set(page);
479	>	const unsigned first_page = find_next_page_set(page);
480		if (first_page >= mainBuffer.pageCount)
481		break;
482
#	Line 337 \| Line 492 \| static inline void update_display_window
492		const int y1 = mainBuffer.pageInfo[first_page].top;
493		const int y2 = mainBuffer.pageInfo[page - 1].bottom;
494		const int height = y2 - y1 + 1;
340	–
341	–	if (VideoMonitor.mode.depth < VDEPTH_8BIT) {
342	–
343	–	// Update the_host_buffer and copy of the_buffer
344	–	const int src_bytes_per_row = VideoMonitor.mode.bytes_per_row;
345	–	const int dst_bytes_per_row = drv->img->bytes_per_line;
346	–	const int pixels_per_byte = VideoMonitor.mode.x / src_bytes_per_row;
347	–	int i1 = y1 * src_bytes_per_row, i2 = y1 * dst_bytes_per_row, j;
348	–	for (j = y1; j <= y2; j++) {
349	–	Screen_blit(the_host_buffer + i2, the_buffer + i1, VideoMonitor.mode.x / pixels_per_byte);
350	–	i1 += src_bytes_per_row;
351	–	i2 += dst_bytes_per_row;
352	–	}
353	–
354	–	} else {
495
496	<	// Update the_host_buffer and copy of the_buffer
497	<	const int src_bytes_per_row = VideoMonitor.mode.bytes_per_row;
498	<	const int dst_bytes_per_row = drv->img->bytes_per_line;
499	<	const int bytes_per_pixel = src_bytes_per_row / VideoMonitor.mode.x;
500	<	int i1 = y1 * src_bytes_per_row, i2 = y1 * dst_bytes_per_row, j;
501	<	for (j = y1; j <= y2; j++) {
502	<	Screen_blit(the_host_buffer + i2, the_buffer + i1, bytes_per_pixel * VideoMonitor.mode.x);
503	<	i1 += src_bytes_per_row;
504	<	i2 += dst_bytes_per_row;
365	<	}
496	>	// Update the_host_buffer
497	>	VIDEO_DRV_LOCK_PIXELS;
498	>	const int src_bytes_per_row = VIDEO_MODE_ROW_BYTES;
499	>	const int dst_bytes_per_row = VIDEO_DRV_ROW_BYTES;
500	>	int i1 = y1 * src_bytes_per_row, i2 = y1 * dst_bytes_per_row, j;
501	>	for (j = y1; j <= y2; j++) {
502	>	Screen_blit(the_host_buffer + i2, the_buffer + i1, src_bytes_per_row);
503	>	i1 += src_bytes_per_row;
504	>	i2 += dst_bytes_per_row;
505		}
506	+	VIDEO_DRV_UNLOCK_PIXELS;
507
508	<	if (drv->have_shm)
509	<	XShmPutImage(x_display, drv->w, drv->gc, drv->img, 0, y1, 0, y1, VideoMonitor.mode.x, height, 0);
508	>	#ifdef USE_SDL_VIDEO
509	>	SDL_UpdateRect(drv->s, 0, y1, VIDEO_MODE_X, height);
510	>	#else
511	>	if (VIDEO_DRV_HAVE_SHM)
512	>	XShmPutImage(x_display, VIDEO_DRV_WINDOW, VIDEO_DRV_GC, VIDEO_DRV_IMAGE, 0, y1, 0, y1, VIDEO_MODE_X, height, 0);
513		else
514	<	XPutImage(x_display, drv->w, drv->gc, drv->img, 0, y1, 0, y1, VideoMonitor.mode.x, height);
514	>	XPutImage(x_display, VIDEO_DRV_WINDOW, VIDEO_DRV_GC, VIDEO_DRV_IMAGE, 0, y1, 0, y1, VIDEO_MODE_X, height);
515	>	#endif
516		}
517		mainBuffer.dirty = false;
518		}
519	+	#endif
520
521
522		/*
#	Line 379 \| Line 524 \| static inline void update_display_window
524		* (only in Real or Direct Addressing mode)
525		*/
526
527	+	#ifndef TEST_VOSF_PERFORMANCE
528		#if REAL_ADDRESSING \|\| DIRECT_ADDRESSING
529	<	static inline void update_display_dga_vosf(void)
529	>	static void update_display_dga_vosf(VIDEO_DRV_DGA_INIT)
530		{
531	<	int page = 0;
531	>	VIDEO_MODE_INIT;
532	>
533	>	// Compute number of bytes per row, take care to virtual screens
534	>	const int src_bytes_per_row = VIDEO_MODE_ROW_BYTES;
535	>	const int dst_bytes_per_row = TrivialBytesPerRow(VIDEO_MODE_X, DepthModeForPixelDepth(VIDEO_DRV_DEPTH));
536	>	const int scr_bytes_per_row = VIDEO_DRV_ROW_BYTES;
537	>	assert(dst_bytes_per_row <= scr_bytes_per_row);
538	>	const int scr_bytes_left = scr_bytes_per_row - dst_bytes_per_row;
539	>
540	>	// Full screen update requested?
541	>	if (mainBuffer.very_dirty) {
542	>	PFLAG_CLEAR_ALL;
543	>	vm_protect((char *)mainBuffer.memStart, mainBuffer.memLength, VM_PAGE_READ);
544	>	memcpy(the_buffer_copy, the_buffer, VIDEO_MODE_ROW_BYTES * VIDEO_MODE_Y);
545	>	VIDEO_DRV_LOCK_PIXELS;
546	>	int i1 = 0, i2 = 0;
547	>	for (int j = 0; j < VIDEO_MODE_Y; j++) {
548	>	Screen_blit(the_host_buffer + i2, the_buffer + i1, src_bytes_per_row);
549	>	i1 += src_bytes_per_row;
550	>	i2 += scr_bytes_per_row;
551	>	}
552	>	#ifdef USE_SDL_VIDEO
553	>	SDL_UpdateRect(drv->s, 0, 0, VIDEO_MODE_X, VIDEO_MODE_Y);
554	>	#endif
555	>	VIDEO_DRV_UNLOCK_PIXELS;
556	>	return;
557	>	}
558	>
559	>	// Setup partial blitter (use 64-pixel wide chunks)
560	>	const int n_pixels = 64;
561	>	const int n_chunks = VIDEO_MODE_X / n_pixels;
562	>	const int n_pixels_left = VIDEO_MODE_X - (n_chunks * n_pixels);
563	>	const int src_chunk_size = src_bytes_per_row / n_chunks;
564	>	const int dst_chunk_size = dst_bytes_per_row / n_chunks;
565	>	const int src_chunk_size_left = src_bytes_per_row - (n_chunks * src_chunk_size);
566	>	const int dst_chunk_size_left = dst_bytes_per_row - (n_chunks * dst_chunk_size);
567	>
568	>	int page = 0, last_scanline = -1;
569		for (;;) {
570	<	const int first_page = find_next_page_set(page);
570	>	const unsigned first_page = find_next_page_set(page);
571		if (first_page >= mainBuffer.pageCount)
572		break;
573
#	Line 395 \| Line 578 \| static inline void update_display_dga_vo
578		const int32 offset = first_page << mainBuffer.pageBits;
579		const uint32 length = (page - first_page) << mainBuffer.pageBits;
580		vm_protect((char *)mainBuffer.memStart + offset, length, VM_PAGE_READ);
581	<
582	<	// I am sure that y2 >= y1 and depth != 1
583	<	const int y1 = mainBuffer.pageInfo[first_page].top;
584	<	const int y2 = mainBuffer.pageInfo[page - 1].bottom;
585	<
586	<	const int bytes_per_row = VideoMonitor.mode.bytes_per_row;
587	<	const int bytes_per_pixel = VideoMonitor.mode.bytes_per_row / VideoMonitor.mode.x;
588	<	int i, j;
589	<
590	<	// Check for first column from left and first column
591	<	// from right that have changed
592	<	int x1 = VideoMonitor.mode.x * bytes_per_pixel - 1;
593	<	for (j = y1; j <= y2; j++) {
594	<	uint8 * const p1 = &the_buffer[j * bytes_per_row];
595	<	uint8 * const p2 = &the_buffer_copy[j * bytes_per_row];
596	<	for (i = 0; i < x1; i++) {
597	<	if (p1[i] != p2[i]) {
598	<	x1 = i;
599	<	break;
581	>
582	>	// Optimized for scanlines, don't process overlapping lines again
583	>	int y1 = mainBuffer.pageInfo[first_page].top;
584	>	int y2 = mainBuffer.pageInfo[page - 1].bottom;
585	>	if (y1 <= last_scanline && ++y1 >= VIDEO_MODE_Y)
586	>	continue;
587	>	if (y2 <= last_scanline && ++y2 >= VIDEO_MODE_Y)
588	>	continue;
589	>	last_scanline = y2;
590	>
591	>	// Update the_host_buffer and copy of the_buffer, one line at a time
592	>	int i1 = y1 * src_bytes_per_row;
593	>	int i2 = y1 * scr_bytes_per_row;
594	>	#ifdef USE_SDL_VIDEO
595	>	int bbi = 0;
596	>	SDL_Rect bb[3] = {
597	>	{ VIDEO_MODE_X, y1, 0, 0 },
598	>	{ VIDEO_MODE_X, -1, 0, 0 },
599	>	{ VIDEO_MODE_X, -1, 0, 0 }
600	>	};
601	>	#endif
602	>	VIDEO_DRV_LOCK_PIXELS;
603	>	for (int j = y1; j <= y2; j++) {
604	>	for (int i = 0; i < n_chunks; i++) {
605	>	if (memcmp(the_buffer_copy + i1, the_buffer + i1, src_chunk_size) != 0) {
606	>	memcpy(the_buffer_copy + i1, the_buffer + i1, src_chunk_size);
607	>	Screen_blit(the_host_buffer + i2, the_buffer + i1, src_chunk_size);
608	>	#ifdef USE_SDL_VIDEO
609	>	const int x = i * n_pixels;
610	>	if (x < bb[bbi].x) {
611	>	if (bb[bbi].w)
612	>	bb[bbi].w += bb[bbi].x - x;
613	>	else
614	>	bb[bbi].w = n_pixels;
615	>	bb[bbi].x = x;
616	>	}
617	>	else if (x >= bb[bbi].x + bb[bbi].w)
618	>	bb[bbi].w = x + n_pixels - bb[bbi].x;
619	>	#endif
620		}
621	+	i1 += src_chunk_size;
622	+	i2 += dst_chunk_size;
623		}
624	<	}
625	<	x1 /= bytes_per_pixel;
626	<
627	<	int x2 = x1 * bytes_per_pixel;
628	<	for (j = y2; j >= y1; j--) {
629	<	uint8 * const p1 = &the_buffer[j * bytes_per_row];
630	<	uint8 * const p2 = &the_buffer_copy[j * bytes_per_row];
631	<	for (i = VideoMonitor.mode.x * bytes_per_pixel - 1; i > x2; i--) {
632	<	if (p1[i] != p2[i]) {
633	<	x2 = i;
634	<	break;
624	>	if (src_chunk_size_left && dst_chunk_size_left) {
625	>	if (memcmp(the_buffer_copy + i1, the_buffer + i1, src_chunk_size_left) != 0) {
626	>	memcpy(the_buffer_copy + i1, the_buffer + i1, src_chunk_size_left);
627	>	Screen_blit(the_host_buffer + i2, the_buffer + i1, src_chunk_size_left);
628	>	}
629	>	i1 += src_chunk_size_left;
630	>	i2 += dst_chunk_size_left;
631	>	#ifdef USE_SDL_VIDEO
632	>	const int x = n_chunks * n_pixels;
633	>	if (x < bb[bbi].x) {
634	>	if (bb[bbi].w)
635	>	bb[bbi].w += bb[bbi].x - x;
636	>	else
637	>	bb[bbi].w = n_pixels_left;
638	>	bb[bbi].x = x;
639		}
640	+	else if (x >= bb[bbi].x + bb[bbi].w)
641	+	bb[bbi].w = x + n_pixels_left - bb[bbi].x;
642	+	#endif
643		}
644	+	i2 += scr_bytes_left;
645	+	#ifdef USE_SDL_VIDEO
646	+	bb[bbi].h++;
647	+	if (bb[bbi].w && (j == y1 \|\| j == y2 - 1 \|\| j == y2)) {
648	+	bbi++;
649	+	assert(bbi <= 3);
650	+	if (j != y2)
651	+	bb[bbi].y = j + 1;
652	+	}
653	+	#endif
654		}
655	<	x2 /= bytes_per_pixel;
656	<
657	<	// Update the_host_buffer and copy of the_buffer
658	<	// There should be at least one pixel to copy
437	<	const int width = x2 - x1 + 1;
438	<	i = y1 * bytes_per_row + x1 * bytes_per_pixel;
439	<	for (j = y1; j <= y2; j++) {
440	<	Screen_blit(the_host_buffer + i, the_buffer + i, bytes_per_pixel * width);
441	<	memcpy(the_buffer_copy + i, the_buffer + i, bytes_per_pixel * width);
442	<	i += bytes_per_row;
443	<	}
655	>	#ifdef USE_SDL_VIDEO
656	>	SDL_UpdateRects(drv->s, bbi, bb);
657	>	#endif
658	>	VIDEO_DRV_UNLOCK_PIXELS;
659		}
660		mainBuffer.dirty = false;
661		}
662		#endif
663	+	#endif
664
665		#endif /* ENABLE_VOSF */
666

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Comparing BasiliskII/src/Unix/video_vosf.h (file contents): Revision 1.26 by cebix, 2001-07-06T20:49:48Z vs. Revision 1.61 by gbeauche, 2007-12-30T08:47:34Z

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Comparing BasiliskII/src/Unix/video_vosf.h (file contents):
Revision 1.26 by cebix, 2001-07-06T20:49:48Z vs.
Revision 1.61 by gbeauche, 2007-12-30T08:47:34Z