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

Comparing BasiliskII/src/Unix/video_blit.cpp (file contents):
Revision 1.4 by cebix, 2001-07-01T14:38:03Z vs.
Revision 1.20 by asvitkine, 2010-09-24T00:48:58Z

#	Line 1 \| Line 1
1		/*
2		* video_blit.cpp - Video/graphics emulation, blitters
3		*
4	<	* Basilisk II (C) 1997-2001 Christian Bauer
4	>	* Basilisk II (C) 1997-2008 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 20 \| Line 20
20
21		#include "sysdeps.h"
22		#include "video.h"
23	+	#include "video_blit.h"
24
25		#include <stdio.h>
26		#include <stdlib.h>
26	–	#include <X11/Xlib.h>
27	–	#include <X11/Xutil.h>
27
29	–	#ifdef ENABLE_VOSF
28		// Format of the target visual
31	–	struct VisualFormat {
32	–	int depth; // Screen depth
33	–	uint32 Rmask, Gmask, Bmask; // RGB mask values
34	–	uint32 Rshift, Gshift, Bshift; // RGB shift values
35	–	};
29		static VisualFormat visualFormat;
30
31	+	// This holds the pixels values of the palette colors for 8->16/32-bit expansion
32	+	uint32 ExpandMap[256];
33	+
34	+	// Mark video_blit.h for specialization
35	+	#define DEFINE_VIDEO_BLITTERS 1
36	+
37		/* -------------------------------------------------------------------------- */
38		/* --- Raw Copy / No conversion required --- */
39		/* -------------------------------------------------------------------------- */
#	Line 61 \| Line 60 \| *static void Blit_Copy_Raw(uint8 dest,**
60		#define FB_BLIT_2(dst, src) \
61		(dst = (((src) >> 8) & 0x00ff00ff) \| (((src) & 0x00ff00ff) << 8))
62
63	+	#define FB_BLIT_4(dst, src) \
64	+	(dst = (((src) >> 8) & UVAL64(0x00ff00ff00ff00ff)) \| \
65	+	(((src) & UVAL64(0x00ff00ff00ff00ff)) << 8))
66	+
67		#define FB_DEPTH 15
68		#include "video_blit.h"
69
#	Line 78 \| Line 81 \| *static void Blit_Copy_Raw(uint8 dest,**
81		#define FB_BLIT_2(dst, src) \
82		(dst = (((src) >> 10) & 0x001f001f) \| ((src) & 0x03e003e0) \| (((src) << 10) & 0x7c007c00))
83
84	+	#define FB_BLIT_4(dst, src) \
85	+	(dst = (((src) >> 10) & UVAL64(0x001f001f001f001f)) \| \
86	+	( (src) & UVAL64(0x03e003e003e003e0)) \| \
87	+	(((src) << 10) & UVAL64(0x7c007c007c007c00)))
88	+
89		#define FB_DEPTH 15
90		#define FB_FUNC_NAME Blit_BGR555_NBO
91		#include "video_blit.h"
#	Line 90 \| Line 98 \| *static void Blit_Copy_Raw(uint8 dest,**
98		#define FB_BLIT_2(dst, src) \
99		(dst = (((src) >> 2) & 0x1f001f00) \| (((src) >> 8) & 0x30003) \| (((src) << 8) & 0xe000e000) \| (((src) << 2) & 0x7c007c))
100
101	+	#define FB_BLIT_4(dst, src) \
102	+	(dst = (((src) >> 2) & UVAL64(0x1f001f001f001f00)) \| \
103	+	(((src) >> 8) & UVAL64(0x0003000300030003)) \| \
104	+	(((src) << 8) & UVAL64(0xe000e000e000e000)) \| \
105	+	(((src) << 2) & UVAL64(0x007c007c007c007c)))
106	+
107		#define FB_DEPTH 15
108		#define FB_FUNC_NAME Blit_BGR555_OBO
109		#include "video_blit.h"
#	Line 104 \| Line 118 \| *static void Blit_Copy_Raw(uint8 dest,**
118		#define FB_BLIT_2(dst, src) \
119		(dst = (((src) >> 2) & 0x1f001f) \| (((src) >> 8) & 0xe000e0) \| (((src) << 8) & 0x03000300) \| (((src) << 2) & 0x7c007c00))
120
121	+	#define FB_BLIT_4(dst, src) \
122	+	(dst = (((src) >> 2) & UVAL64(0x001f001f001f001f)) \| \
123	+	(((src) >> 8) & UVAL64(0x00e000e000e000e0)) \| \
124	+	(((src) << 8) & UVAL64(0x0300030003000300)) \| \
125	+	(((src) << 2) & UVAL64(0x7c007c007c007c00)))
126	+
127		#define FB_DEPTH 15
128		#define FB_FUNC_NAME Blit_BGR555_NBO
129		#include "video_blit.h"
#	Line 116 \| Line 136 \| *static void Blit_Copy_Raw(uint8 dest,**
136		#define FB_BLIT_2(dst, src) \
137		(dst = (((src) << 6) & 0x1f001f00) \| ((src) & 0xe003e003) \| (((src) >> 6) & 0x7c007c))
138
139	+	#define FB_BLIT_4(dst, src) \
140	+	(dst = (((src) << 6) & UVAL64(0x1f001f001f001f00)) \| \
141	+	( (src) & UVAL64(0xe003e003e003e003)) \| \
142	+	(((src) >> 6) & UVAL64(0x007c007c007c007c)))
143	+
144		#define FB_DEPTH 15
145		#define FB_FUNC_NAME Blit_BGR555_OBO
146		#include "video_blit.h"
#	Line 136 \| Line 161 \| *static void Blit_Copy_Raw(uint8 dest,**
161		#define FB_BLIT_2(dst, src) \
162		(dst = (((src) & 0x001f001f) \| (((src) << 1) & 0xffc0ffc0)))
163
164	+	#define FB_BLIT_4(dst, src) \
165	+	(dst = (((src) & UVAL64(0x001f001f001f001f)) \| \
166	+	(((src) << 1) & UVAL64(0xffc0ffc0ffc0ffc0))))
167	+
168		#define FB_DEPTH 16
169		#define FB_FUNC_NAME Blit_RGB565_NBO
170		#include "video_blit.h"
#	Line 148 \| Line 177 \| *static void Blit_Copy_Raw(uint8 dest,**
177		#define FB_BLIT_2(dst, src) \
178		(dst = ((((src) >> 7) & 0x00ff00ff) \| (((src) << 9) & 0xc000c000) \| (((src) << 8) & 0x1f001f00)))
179
180	+	#define FB_BLIT_4(dst, src) \
181	+	(dst = (((src) >> 7) & UVAL64(0x00ff00ff00ff00ff)) \| \
182	+	(((src) << 9) & UVAL64(0xc000c000c000c000)) \| \
183	+	(((src) << 8) & UVAL64(0x1f001f001f001f00)))
184	+
185		#define FB_DEPTH 16
186		#define FB_FUNC_NAME Blit_RGB565_OBO
187		#include "video_blit.h"
#	Line 159 \| Line 193 \| *static void Blit_Copy_Raw(uint8 dest,**
193		#define FB_BLIT_1(dst, src) \
194		(dst = (((src) >> 8) & 0x001f) \| (((src) << 9) & 0xfe00) \| (((src) >> 7) & 0x01c0))
195
162	–	// gb-- Disabled because I don't see any improvement
163	–	#if 0 && defined(__i386__) && defined(X86_ASSEMBLY)
164	–
165	–	#define FB_BLIT_2(dst, src) \
166	–	__asm__ ( "movl %0,%%ebx\n\t" \
167	–	"movl %0,%%ebp\n\t" \
168	–	"andl $0x1f001f00,%%ebx\n\t" \
169	–	"andl $0x007f007f,%0\n\t" \
170	–	"andl $0xe000e000,%%ebp\n\t" \
171	–	"shrl $8,%%ebx\n\t" \
172	–	"shrl $7,%%ebp\n\t" \
173	–	"shll $9,%0\n\t" \
174	–	"orl %%ebx,%%ebp\n\t" \
175	–	"orl %%ebp,%0\n\t" \
176	–	: "=r" (dst) : "0" (src) : "ebx", "ebp", "cc" )
177	–
178	–	#else
179	–
196		#define FB_BLIT_2(dst, src) \
197		(dst = (((src) >> 8) & 0x001f001f) \| (((src) << 9) & 0xfe00fe00) \| (((src) >> 7) & 0x01c001c0))
198
199	<	#endif
199	>	#define FB_BLIT_4(dst, src) \
200	>	(dst = (((src) >> 8) & UVAL64(0x001f001f001f001f)) \| \
201	>	(((src) << 9) & UVAL64(0xfe00fe00fe00fe00)) \| \
202	>	(((src) >> 7) & UVAL64(0x01c001c001c001c0)))
203
204		#define FB_DEPTH 16
205		#define FB_FUNC_NAME Blit_RGB565_NBO
#	Line 194 \| Line 213 \| *static void Blit_Copy_Raw(uint8 dest,**
213		#define FB_BLIT_2(dst, src) \
214		(dst = (((src) & 0x1f001f00) \| (((src) << 1) & 0xe0fee0fe) \| (((src) >> 15) & 0x10001)))
215
216	+	#define FB_BLIT_4(dst, src) \
217	+	(dst = (((src) & UVAL64(0x1f001f001f001f00)) \| \
218	+	(((src) << 1) & UVAL64(0xe0fee0fee0fee0fe)) \| \
219	+	(((src) >> 15) & UVAL64(0x0001000100010001))))
220	+
221		#define FB_DEPTH 16
222		#define FB_FUNC_NAME Blit_RGB565_OBO
223		#include "video_blit.h"
#	Line 213 \| Line 237 \| *static void Blit_Copy_Raw(uint8 dest,**
237		#define FB_BLIT_2(dst, src) \
238		(dst = (((src) >> 24) & 0xff) \| (((src) >> 8) & 0xff00) \| (((src) & 0xff00) << 8) \| (((src) & 0xff) << 24))
239
240	+	#define FB_BLIT_4(dst, src) \
241	+	(dst = (((src) >> 24) & UVAL64(0x000000ff000000ff)) \| \
242	+	(((src) >> 8) & UVAL64(0x0000ff000000ff00)) \| \
243	+	(((src) & UVAL64(0x0000ff000000ff00)) << 8) \| \
244	+	(((src) & UVAL64(0x000000ff000000ff)) << 24))
245	+
246		#define FB_DEPTH 24
247		#include "video_blit.h"
248
#	Line 227 \| Line 257 \| *static void Blit_Copy_Raw(uint8 dest,**
257		#define FB_BLIT_2(dst, src) \
258		(dst = (((src) >> 16) & 0xff) \| ((src) & 0xff00) \| (((src) & 0xff) << 16))
259
260	+	#define FB_BLIT_4(dst, src) \
261	+	(dst = (((src) >> 16) & UVAL64(0x000000ff000000ff)) \| \
262	+	( (src) & UVAL64(0x0000ff000000ff00)) \| \
263	+	(((src) & UVAL64(0x000000ff000000ff)) << 16))
264	+
265		#define FB_FUNC_NAME Blit_BGR888_NBO
266		#define FB_DEPTH 24
267		#include "video_blit.h"
#	Line 238 \| Line 273 \| *static void Blit_Copy_Raw(uint8 dest,**
273		#define FB_BLIT_2(dst, src) \
274		(dst = (((src) >> 16) & 0xff) \| ((src) & 0xff0000) \| (((src) & 0xff) << 16))
275
276	+	#define FB_BLIT_4(dst, src) \
277	+	(dst = (((src) >> 16) & UVAL64(0x000000ff000000ff)) \| \
278	+	( (src) & UVAL64(0x00ff000000ff0000)) \| \
279	+	(((src) & UVAL64(0x000000ff000000ff)) << 16))
280	+
281		#define FB_FUNC_NAME Blit_BGR888_OBO
282		#define FB_DEPTH 24
283		#include "video_blit.h"
#	Line 255 \| Line 295 \| *static void Blit_Copy_Raw(uint8 dest,**
295		#define FB_BLIT_2(dst, src) \
296		(dst = ((src) & 0xff00ff) \| (((src) & 0xff00) << 16))
297
298	+	#define FB_BLIT_4(dst, src) \
299	+	(dst = ((src) & UVAL64(0x00ff00ff00ff00ff)) \| (((src) & UVAL64(0x0000ff000000ff00)) << 16))
300	+
301		#define FB_DEPTH 24
302		#include "video_blit.h"
303
304		/* -------------------------------------------------------------------------- */
305	+	/* --- 1/2/4-bit indexed to 8-bit mode conversion --- */
306	+	/* -------------------------------------------------------------------------- */
307	+
308	+	static void Blit_Expand_1_To_8(uint8 * dest, const uint8 * p, uint32 length)
309	+	{
310	+	uint8 q = (uint8 )dest;
311	+	for (uint32 i=0; i<length; i++) {
312	+	uint8 c = *p++;
313	+	*q++ = c >> 7;
314	+	*q++ = (c >> 6) & 1;
315	+	*q++ = (c >> 5) & 1;
316	+	*q++ = (c >> 4) & 1;
317	+	*q++ = (c >> 3) & 1;
318	+	*q++ = (c >> 2) & 1;
319	+	*q++ = (c >> 1) & 1;
320	+	*q++ = c & 1;
321	+	}
322	+	}
323	+
324	+	static void Blit_Expand_2_To_8(uint8 * dest, const uint8 * p, uint32 length)
325	+	{
326	+	uint8 q = (uint8 )dest;
327	+	for (uint32 i=0; i<length; i++) {
328	+	uint8 c = *p++;
329	+	*q++ = c >> 6;
330	+	*q++ = (c >> 4) & 3;
331	+	*q++ = (c >> 2) & 3;
332	+	*q++ = c & 3;
333	+	}
334	+	}
335	+
336	+	static void Blit_Expand_4_To_8(uint8 * dest, const uint8 * p, uint32 length)
337	+	{
338	+	uint8 q = (uint8 )dest;
339	+	for (uint32 i=0; i<length; i++) {
340	+	uint8 c = *p++;
341	+	*q++ = c >> 4;
342	+	*q++ = c & 0x0f;
343	+	}
344	+	}
345	+
346	+	/* -------------------------------------------------------------------------- */
347	+	/* --- 1/2/4/8-bit indexed to 16-bit mode color expansion --- */
348	+	/* -------------------------------------------------------------------------- */
349	+
350	+	static void Blit_Expand_1_To_16(uint8 * dest, const uint8 * p, uint32 length)
351	+	{
352	+	uint16 q = (uint16 )dest;
353	+	for (uint32 i=0; i<length; i++) {
354	+	uint8 c = *p++;
355	+	*q++ = -(c >> 7);
356	+	*q++ = -((c >> 6) & 1);
357	+	*q++ = -((c >> 5) & 1);
358	+	*q++ = -((c >> 4) & 1);
359	+	*q++ = -((c >> 3) & 1);
360	+	*q++ = -((c >> 2) & 1);
361	+	*q++ = -((c >> 1) & 1);
362	+	*q++ = -(c & 1);
363	+	}
364	+	}
365	+
366	+	static void Blit_Expand_2_To_16(uint8 * dest, const uint8 * p, uint32 length)
367	+	{
368	+	uint16 q = (uint16 )dest;
369	+	for (uint32 i=0; i<length; i++) {
370	+	uint8 c = *p++;
371	+	*q++ = ExpandMap[c >> 6];
372	+	*q++ = ExpandMap[c >> 4];
373	+	*q++ = ExpandMap[c >> 2];
374	+	*q++ = ExpandMap[c];
375	+	}
376	+	}
377	+
378	+	static void Blit_Expand_4_To_16(uint8 * dest, const uint8 * p, uint32 length)
379	+	{
380	+	uint16 q = (uint16 )dest;
381	+	for (uint32 i=0; i<length; i++) {
382	+	uint8 c = *p++;
383	+	*q++ = ExpandMap[c >> 4];
384	+	*q++ = ExpandMap[c];
385	+	}
386	+	}
387	+
388	+	static void Blit_Expand_8_To_16(uint8 * dest, const uint8 * p, uint32 length)
389	+	{
390	+	uint16 q = (uint16 )dest;
391	+	for (uint32 i=0; i<length; i++)
392	+	q++ = ExpandMap[p++];
393	+	}
394	+
395	+	/* -------------------------------------------------------------------------- */
396	+	/* --- 1/2/4/8-bit indexed to 32-bit mode color expansion --- */
397	+	/* -------------------------------------------------------------------------- */
398	+
399	+	static void Blit_Expand_1_To_32(uint8 * dest, const uint8 * p, uint32 length)
400	+	{
401	+	uint32 q = (uint32 )dest;
402	+	for (uint32 i=0; i<length; i++) {
403	+	uint8 c = *p++;
404	+	*q++ = -(c >> 7);
405	+	*q++ = -((c >> 6) & 1);
406	+	*q++ = -((c >> 5) & 1);
407	+	*q++ = -((c >> 4) & 1);
408	+	*q++ = -((c >> 3) & 1);
409	+	*q++ = -((c >> 2) & 1);
410	+	*q++ = -((c >> 1) & 1);
411	+	*q++ = -(c & 1);
412	+	}
413	+	}
414	+
415	+	static void Blit_Expand_2_To_32(uint8 * dest, const uint8 * p, uint32 length)
416	+	{
417	+	uint32 q = (uint32 )dest;
418	+	for (uint32 i=0; i<length; i++) {
419	+	uint8 c = *p++;
420	+	*q++ = ExpandMap[c >> 6];
421	+	*q++ = ExpandMap[c >> 4];
422	+	*q++ = ExpandMap[c >> 2];
423	+	*q++ = ExpandMap[c];
424	+	}
425	+	}
426	+
427	+	static void Blit_Expand_4_To_32(uint8 * dest, const uint8 * p, uint32 length)
428	+	{
429	+	uint32 q = (uint32 )dest;
430	+	for (uint32 i=0; i<length; i++) {
431	+	uint8 c = *p++;
432	+	*q++ = ExpandMap[c >> 4];
433	+	*q++ = ExpandMap[c];
434	+	}
435	+	}
436	+
437	+	static void Blit_Expand_8_To_32(uint8 * dest, const uint8 * p, uint32 length)
438	+	{
439	+	uint32 q = (uint32 )dest;
440	+	for (uint32 i=0; i<length; i++)
441	+	q++ = ExpandMap[p++];
442	+	}
443	+
444	+	/* -------------------------------------------------------------------------- */
445		/* --- Blitters to the host frame buffer, or XImage buffer --- */
446		/* -------------------------------------------------------------------------- */
447
#	Line 284 \| Line 467 \| static Screen_blit_func_info Screen_blit
467		{ 8, 0x000000, 0x000000, 0x000000, Blit_Copy_Raw , Blit_Copy_Raw }, // OK (NBO)
468		{ 15, 0x007c00, 0x0003e0, 0x00001f, Blit_Copy_Raw , Blit_RGB555_OBO }, // OK (OBO)
469		{ 15, 0x00001f, 0x0003e0, 0x007c00, Blit_BGR555_NBO , Blit_BGR555_OBO }, // NT
470	+	{ 16, 0x007c00, 0x0003e0, 0x00001f, Blit_Copy_Raw , Blit_RGB555_OBO }, // OK (OBO)
471		{ 16, 0x00f800, 0x0007e0, 0x00001f, Blit_RGB565_NBO , Blit_RGB565_OBO }, // OK (OBO)
472		{ 24, 0xff0000, 0x00ff00, 0x0000ff, Blit_Copy_Raw , Blit_RGB888_OBO }, // OK (OBO)
473		{ 24, 0x0000ff, 0x00ff00, 0xff0000, Blit_BGR888_NBO , Blit_BGR888_OBO }, // NT
474		{ 32, 0xff0000, 0x00ff00, 0x0000ff, Blit_Copy_Raw , Blit_RGB888_OBO }, // OK
475	<	{ 32, 0x0000ff, 0x00ff00, 0xff0000, Blit_BGR888_NBO , Blit_BGR888_OBO } // OK
475	>	{ 32, 0x0000ff, 0x00ff00, 0xff0000, Blit_BGR888_NBO , Blit_BGR888_OBO }, // OK
476		#else
477		{ 1, 0x000000, 0x000000, 0x000000, Blit_Copy_Raw , Blit_Copy_Raw }, // NT
478		{ 8, 0x000000, 0x000000, 0x000000, Blit_Copy_Raw , Blit_Copy_Raw }, // OK (NBO)
479		{ 15, 0x007c00, 0x0003e0, 0x00001f, Blit_RGB555_NBO , Blit_Copy_Raw }, // OK (NBO)
480		{ 15, 0x00001f, 0x0003e0, 0x007c00, Blit_BGR555_NBO , Blit_BGR555_OBO }, // NT
481	+	{ 16, 0x007c00, 0x0003e0, 0x00001f, Blit_RGB555_NBO , Blit_Copy_Raw }, // OK (NBO)
482		{ 16, 0x00f800, 0x0007e0, 0x00001f, Blit_RGB565_NBO , Blit_RGB565_OBO }, // OK (NBO)
483		{ 24, 0xff0000, 0x00ff00, 0x0000ff, Blit_RGB888_NBO , Blit_Copy_Raw }, // OK (NBO)
484		{ 24, 0x0000ff, 0x00ff00, 0xff0000, Blit_BGR888_NBO , Blit_BGR888_OBO }, // NT
485		{ 32, 0xff0000, 0x00ff00, 0x0000ff, Blit_RGB888_NBO , Blit_Copy_Raw }, // OK (NBO)
486	<	{ 32, 0x0000ff, 0x00ff00, 0xff0000, Blit_BGR888_NBO , Blit_BGR888_OBO } // NT
486	>	{ 32, 0x0000ff, 0x00ff00, 0xff0000, Blit_BGR888_NBO , Blit_BGR888_OBO }, // NT
487		#endif
488	+	{ 32, 0xff00, 0xff0000, 0xff000000, Blit_Copy_Raw , Blit_Copy_Raw } // OK
489		};
490
491		// Initialize the framebuffer update function
492		// Returns FALSE, if the function was to be reduced to a simple memcpy()
493		// --> In that case, VOSF is not necessary
494	<	bool Screen_blitter_init(XVisualInfo * visual_info, bool native_byte_order, video_depth mac_depth)
494	>	bool Screen_blitter_init(VisualFormat const & visual_format, bool native_byte_order, int mac_depth)
495		{
496	+	#if USE_SDL_VIDEO
497	+	const bool use_sdl_video = true;
498	+	#else
499	+	const bool use_sdl_video = false;
500	+	#endif
501		#if REAL_ADDRESSING \|\| DIRECT_ADDRESSING
502	<	if (mac_depth == VDEPTH_1BIT) {
502	>	if (mac_depth == 1 && !use_sdl_video && !visual_format.fullscreen) {
503
504	<	// 1-bit mode uses a 1-bit X image, so there's no need for special blitting routines
504	>	// Windowed 1-bit mode uses a 1-bit X image, so there's no need for special blitting routines
505		Screen_blit = Blit_Copy_Raw;
506
507		} else {
508
318	–	visualFormat.depth = visual_info->depth;
319	–	visualFormat.Rmask = visual_info->red_mask;
320	–	visualFormat.Gmask = visual_info->green_mask;
321	–	visualFormat.Bmask = visual_info->blue_mask;
322	–
509		// Compute RGB shift values
510	+	visualFormat = visual_format;
511		visualFormat.Rshift = 0;
512		for (uint32 Rmask = visualFormat.Rmask; Rmask && ((Rmask & 1) != 1); Rmask >>= 1)
513		++visualFormat.Rshift;
#	Line 330 \| Line 517 \| *bool Screen_blitter_init(XVisualInfo v**
517		visualFormat.Bshift = 0;
518		for (uint32 Bmask = visualFormat.Bmask; Bmask && ((Bmask & 1) != 1); Bmask >>= 1)
519		++visualFormat.Bshift;
520	+
521	+	// 1/2/4/8-bit mode on 8/16/32-bit screen?
522	+	Screen_blit = NULL;
523	+	switch (visualFormat.depth) {
524	+	case 8:
525	+	switch (mac_depth) {
526	+	case 1: Screen_blit = Blit_Expand_1_To_8; break;
527	+	case 2: Screen_blit = Blit_Expand_2_To_8; break;
528	+	case 4: Screen_blit = Blit_Expand_4_To_8; break;
529	+	}
530	+	break;
531	+	case 15:
532	+	case 16:
533	+	switch (mac_depth) {
534	+	case 1: Screen_blit = Blit_Expand_1_To_16; break;
535	+	case 2: Screen_blit = Blit_Expand_2_To_16; break;
536	+	case 4: Screen_blit = Blit_Expand_4_To_16; break;
537	+	case 8: Screen_blit = Blit_Expand_8_To_16; break;
538	+	}
539	+	break;
540	+	case 24:
541	+	case 32:
542	+	switch (mac_depth) {
543	+	case 1: Screen_blit = Blit_Expand_1_To_32; break;
544	+	case 2: Screen_blit = Blit_Expand_2_To_32; break;
545	+	case 4: Screen_blit = Blit_Expand_4_To_32; break;
546	+	case 8: Screen_blit = Blit_Expand_8_To_32; break;
547	+	}
548	+	break;
549	+	}
550	+	bool blitter_found = (Screen_blit != NULL);
551
552		// Search for an adequate blit function
335	–	bool blitter_found = false;
553		const int blitters_count = sizeof(Screen_blitters)/sizeof(Screen_blitters[0]);
554		for (int i = 0; !blitter_found && (i < blitters_count); i++) {
555		if ( (visualFormat.depth == Screen_blitters[i].depth)
#	Line 369 \| Line 586 \| *bool Screen_blitter_init(XVisualInfo v**
586		// --> In that case, we return FALSE
587		return (Screen_blit != Blit_Copy_Raw);
588		}
372	–	#endif /* ENABLE_VOSF */

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Comparing BasiliskII/src/Unix/video_blit.cpp (file contents): Revision 1.4 by cebix, 2001-07-01T14:38:03Z vs. Revision 1.20 by asvitkine, 2010-09-24T00:48:58Z

Diff Legend

Comparing BasiliskII/src/Unix/video_blit.cpp (file contents):
Revision 1.4 by cebix, 2001-07-01T14:38:03Z vs.
Revision 1.20 by asvitkine, 2010-09-24T00:48:58Z