/[gxemul]/trunk/src/devices/dev_fb.c
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Contents of /trunk/src/devices/dev_fb.c

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Revision 24 - (show annotations)
Mon Oct 8 16:19:56 2007 UTC (16 years, 7 months ago) by dpavlin
File MIME type: text/plain
File size: 23698 byte(s) 
++ trunk/HISTORY	(local)
$Id: HISTORY,v 1.1256 2006/06/23 20:43:44 debug Exp $
20060219	Various minor updates. Removing the old MIPS16 skeleton code,
		because it will need to be rewritten for dyntrans anyway.
20060220-22	Removing the non-working dyntrans backend support.
		Continuing on the 64-bit dyntrans virtual memory generalization.
20060223	More work on the 64-bit vm generalization.
20060225	Beginning on MIPS dyntrans load/store instructions.
		Minor PPC updates (64-bit load/store, etc).
		Fixes for the variable-instruction-length framework, some
		minor AVR updates (a simple Hello World program works!).
		Beginning on a skeleton for automatically generating documen-
		tation (for devices etc.).
20060226	PPC updates (adding some more 64-bit instructions, etc).
		AVR updates (more instructions).
		FINALLY found and fixed the zs bug, making NetBSD/macppc
		accept the serial console.
20060301	Adding more AVR instructions.
20060304	Continuing on AVR-related stuff. Beginning on a framework for
		cycle-accurate device emulation. Adding an experimental "PAL
		TV" device (just a dummy so far).
20060305	Adding more AVR instructions.
		Adding a dummy epcom serial controller (for TS7200 emulation).
20060310	Removing the emul() command from configuration files, so only
		net() and machine() are supported.
		Minor progress on the MIPS dyntrans rewrite.
20060311	Continuing on the MIPS dyntrans rewrite (adding more
		instructions, etc).
20060315	Adding more instructions (sllv, srav, srlv, bgtz[l], blez[l],
		beql, bnel, slti[u], various loads and stores).
20060316	Removing the ALWAYS_SIGNEXTEND_32 option, since it was rarely
		used.
		Adding more MIPS dyntrans instructions, and fixing bugs.
20060318	Implementing fast loads/stores for MIPS dyntrans (big/little
		endian, 32-bit and 64-bit modes).
20060320	Making MIPS dyntrans the default configure option; use
		"--enable-oldmips" to use the old bintrans system.
		Adding MIPS dyntrans dmult[u]; minor updates.
20060322	Continuing... adding some more instructions.
		Adding a simple skeleton for demangling C++ "_ZN" symbols.
20060323	Moving src/debugger.c into a new directory (src/debugger/).
20060324	Fixing the hack used to load PPC ELFs (useful for relocated
		Linux/ppc kernels), and adding a dummy G3 machine mode.
20060325-26	Beginning to experiment with GDB remote serial protocol
		connections; adding a -G command line option for selecting
		which TCP port to listen to.
20060330	Beginning a major cleanup to replace things like "0x%016llx"
		with more correct "0x%016"PRIx64, etc.
		Continuing on the GDB remote serial protocol support.
20060331	More cleanup, and some minor GDB remote progress.
20060402	Adding a hack to the configure script, to allow compilation
		on systems that lack PRIx64 etc.
20060406	Removing the temporary FreeBSD/arm hack in dev_ns16550.c and
		replacing it with a better fix from Olivier Houchard.
20060407	A remote debugger (gdb or ddd) can now start and stop the
		emulator using the GDB remote serial protocol, and registers
		and memory can be read. MIPS only for now.
20060408	More GDB progress: single-stepping also works, and also adding
		support for ARM, PowerPC, and Alpha targets.
		Continuing on the delay-slot-across-page-boundary issue.
20060412	Minor update: beginning to add support for the SPARC target
		to the remote GDB functionality.
20060414	Various MIPS updates: adding more instructions for dyntrans
		(eret, add), and making some exceptions work. Fixing a bug
		in dmult[u].
		Implementing the first SPARC instructions (sethi, or).
20060415	Adding "magic trap" instructions so that PROM calls can be
		software emulated in MIPS dyntrans.
		Adding more MIPS dyntrans instructions (ddiv, dadd) and
		fixing another bug in dmult.
20060416	More MIPS dyntrans progress: adding [d]addi, movn, movz, dsllv,
		rfi, an ugly hack for supporting R2000/R3000 style faked caches,
		preliminary interrupt support, and various other updates and
		bugfixes.
20060417	Adding more SPARC instructions (add, sub, sll[x], sra[x],
		srl[x]), and useful SPARC header definitions.
		Adding the first (trivial) x86/AMD64 dyntrans instructions (nop,
		cli/sti, stc/clc, std/cld, simple mov, inc ax). Various other
		x86 updates related to variable instruction length stuff.
		Adding unaligned loads/stores to the MIPS dyntrans mode (but
		still using the pre-dyntrans (slow) imlementation).
20060419	Fixing a MIPS dyntrans exception-in-delay-slot bug.
		Removing the old "show opcode statistics" functionality, since
		it wasn't really useful and isn't implemented for dyntrans.
		Single-stepping (or running with instruction trace) now looks
		ok with dyntrans with delay-slot architectures.
20060420	Minor hacks (removing the -B command line option when compiled
		for non-bintrans, and some other very minor updates).
		Adding (slow) MIPS dyntrans load-linked/store-conditional.
20060422	Applying fixes for bugs discovered by Nils Weller's nwcc
		(static DEC memmap => now per machine, and adding an extern
		keyword in cpu_arm_instr.c).
		Finally found one of the MIPS dyntrans bugs that I've been
		looking for (copy/paste spelling error BIG vs LITTLE endian in
		cpu_mips_instr_loadstore.c for 16-bit fast stores).
		FINALLY found the major MIPS dyntrans bug: slti vs sltiu
		signed/unsigned code in cpu_mips_instr.c. :-)
		Adding more MIPS dyntrans instructions (lwc1, swc1, bgezal[l],
		ctc1, tlt[u], tge[u], tne, beginning on rdhwr).
		NetBSD/hpcmips can now reach userland when using dyntrans :-)
		Adding some more x86 dyntrans instructions.
		Finally removed the old Alpha-specific virtual memory code,
		and replaced it with the generic 64-bit version.
		Beginning to add disassembly support for SPECIAL3 MIPS opcodes.
20060423	Continuing on the delay-slot-across-page-boundary issue;
		adding an end_of_page2 ic slot (like I had planned before, but
		had removed for some reason).
		Adding a quick-and-dirty fallback to legacy coprocessor 1
		code (i.e. skipping dyntrans implementation for now).
		NetBSD/hpcmips and NetBSD/pmax (when running on an emulated
		R4400) can now be installed and run. :-)  (Many bugs left
		to fix, though.)
		Adding more MIPS dyntrans instructions: madd[u], msub[u].
		Cleaning up the SPECIAL2 vs R5900/TX79/C790 "MMI" opcode
		maps somewhat (disassembly and dyntrans instruction decoding).
20060424	Adding an isa_revision field to mips_cpu_types.h, and making
		sure that SPECIAL3 opcodes cause Reserved Instruction
		exceptions on MIPS32/64 revisions lower than 2.
		Adding the SPARC 'ba', 'call', 'jmpl/retl', 'and', and 'xor'
		instructions.
20060425	Removing the -m command line option ("run at most x 
		instructions") and -T ("single_step_on_bad_addr"), because
		they never worked correctly with dyntrans anyway.
		Freshening up the man page.
20060428	Adding more MIPS dyntrans instructions: bltzal[l], idle.
		Enabling MIPS dyntrans compare interrupts.
20060429	FINALLY found the weird dyntrans bug, causing NetBSD etc. to
		behave strangely: some floating point code (conditional
		coprocessor branches) could not be reused from the old
		non-dyntrans code. The "quick-and-dirty fallback" only appeared
		to work. Fixing by implementing bc1* for MIPS dyntrans.
		More MIPS instructions: [d]sub, sdc1, ldc1, dmtc1, dmfc1, cfc0.
		Freshening up MIPS floating point disassembly appearance.
20060430	Continuing on C790/R5900/TX79 disassembly; implementing 128-bit
		"por" and "pextlw".
20060504	Disabling -u (userland emulation) unless compiled as unstable
		development version.
		Beginning on freshening up the testmachine include files,
		to make it easier to reuse those files (placing them in
		src/include/testmachine/), and beginning on a set of "demos"
		or "tutorials" for the testmachine functionality.
		Minor updates to the MIPS GDB remote protocol stub.
		Refreshing doc/experiments.html and gdb_remote.html.
		Enabling Alpha emulation in the stable release configuration,
		even though no guest OSes for Alpha can run yet.
20060505	Adding a generic 'settings' object, which will contain
		references to settable variables (which will later be possible
		to access using the debugger).
20060506	Updating dev_disk and corresponding demo/documentation (and
		switching from SCSI to IDE disk types, so it actually works
		with current test machines :-).
20060510	Adding a -D_LARGEFILE_SOURCE hack for 64-bit Linux hosts,
		so that fseeko() doesn't give a warning.
		Updating the section about how dyntrans works (the "runnable
		IR") in doc/intro.html.
		Instruction updates (some x64=1 checks, some more R5900
		dyntrans stuff: better mul/mult separation from MIPS32/64,
		adding ei and di).
		Updating MIPS cpuregs.h to a newer one (from NetBSD).
		Adding more MIPS dyntrans instructions: deret, ehb.
20060514	Adding disassembly and beginning implementation of SPARC wr
		and wrpr instructions.
20060515	Adding a SUN SPARC machine mode, with dummy SS20 and Ultra1
		machines. Adding the 32-bit "rd psr" instruction.
20060517	Disassembly support for the general SPARC rd instruction.
		Partial implementation of the cmp (subcc) instruction.
		Some other minor updates (making sure that R5900 processors
		start up with the EIE bit enabled, otherwise Linux/playstation2
		receives no interrupts).
20060519	Minor MIPS updates/cleanups.
20060521	Moving the MeshCube machine into evbmips; this seems to work
		reasonably well with a snapshot of a NetBSD MeshCube kernel.
		Cleanup/fix of MIPS config0 register initialization.
20060529	Minor MIPS fixes, including a sign-extension fix to the
		unaligned load/store code, which makes NetBSD/pmax on R3000
		work better with dyntrans. (Ultrix and Linux/DECstation still
		don't work, though.)
20060530	Minor updates to the Alpha machine mode: adding an AlphaBook
		mode, an LCA bus (forwarding accesses to an ISA bus), etc.
20060531	Applying a bugfix for the MIPS dyntrans sc[d] instruction from
		Ondrej Palkovsky. (Many thanks.)
20060601	Minifix to allow ARM immediate msr instruction to not give
		an error for some valid values.
		More Alpha updates.
20060602	Some minor Alpha updates.
20060603	Adding the Alpha cmpbge instruction. NetBSD/alpha prints its
		first boot messages :-) on an emulated Alphabook 1.
20060612	Minor updates; adding a dev_ether.h include file for the
		testmachine ether device. Continuing the hunt for the dyntrans
		bug which makes Linux and Ultrix on DECstation behave
		strangely... FINALLY found it! It seems to be related to
		invalidation of the translation cache, on tlbw{r,i}. There
		also seems to be some remaining interrupt-related problems.
20060614	Correcting the implementation of ldc1/sdc1 for MIPS dyntrans
		(so that it uses 16 32-bit registers if the FR bit in the
		status register is not set).
20060616	REMOVING BINTRANS COMPLETELY!
		Removing the old MIPS interpretation mode.
		Removing the MFHILO_DELAY and instruction delay stuff, because
		they wouldn't work with dyntrans anyway.
20060617	Some documentation updates (adding "NetBSD-archive" to some
		URLs, and new Debian/DECstation installation screenshots).
		Removing the "tracenull" and "enable-caches" configure options.
		Improving MIPS dyntrans performance somewhat (only invalidate
		translations if necessary, on writes to the entryhi register,
		instead of doing it for all cop0 writes).
20060618	More cleanup after the removal of the old MIPS emulation.
		Trying to fix the MIPS dyntrans performance bugs/bottlenecks;
		only semi-successful so far (for R3000).
20060620	Minor update to allow clean compilation again on Tru64/Alpha.
20060622	MIPS cleanup and fixes (removing the pc_last stuff, which
		doesn't make sense with dyntrans anyway, and fixing a cross-
		page-delay-slot-with-exception case in end_of_page).
		Removing the old max_random_cycles_per_chunk stuff, and the
		concept of cycles vs instructions for MIPS emulation.
		FINALLY found and fixed the bug which caused NetBSD/pmax
		clocks to behave strangely (it was a load to the zero register,
		which was treated as a NOP; now it is treated as a load to a
		dummy scratch register).
20060623	Increasing the dyntrans chunk size back to
		N_SAFE_DYNTRANS_LIMIT, instead of N_SAFE_DYNTRANS_LIMIT/2.
		Preparing for a quick release, even though there are known
		bugs, and performance for non-R3000 MIPS emulation is very
		poor. :-/
		Reverting to half the dyntrans chunk size again, because
		NetBSD/cats seemed less stable with full size chunks. :(
		NetBSD/sgimips 3.0 can now run :-)  (With release 0.3.8, only
		NetBSD/sgimips 2.1 worked, not 3.0.)

==============  RELEASE 0.4.0  ==============
1 /*
2 * Copyright (C) 2003-2006 Anders Gavare. All rights reserved.
3 *
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions are met:
6 *
7 * 1. Redistributions of source code must retain the above copyright
8 * notice, this list of conditions and the following disclaimer.
9 * 2. Redistributions in binary form must reproduce the above copyright
10 * notice, this list of conditions and the following disclaimer in the
11 * documentation and/or other materials provided with the distribution.
12 * 3. The name of the author may not be used to endorse or promote products
13 * derived from this software without specific prior written permission.
14 *
15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
16 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
18 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
19 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
20 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
21 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
22 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
23 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
24 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
25 * SUCH DAMAGE.
26 *
27 *
28 * $Id: dev_fb.c,v 1.118 2006/03/04 12:38:47 debug Exp $
29 *
30 * Generic framebuffer device.
31 *
32 * DECstation VFB01 monochrome framebuffer, 1024x864
33 * DECstation VFB02 8-bit color framebuffer, 1024x864
34 * DECstation Maxine, 1024x768 8-bit color
35 * HPC (mips, arm, ..) framebuffer
36 * Playstation 2 (24-bit color)
37 * generic (any resolution, several bit depths possible)
38 *
39 *
40 * TODO: This should actually be independent of X11, but that
41 * might be too hard to do right now.
42 *
43 * TODO: playstation 2 pixels are stored in another format, actually
44 */
45
46 #include <stdio.h>
47 #include <stdlib.h>
48 #include <string.h>
49
50 #include "console.h"
51 #include "cpu.h"
52 #include "devices.h"
53 #include "machine.h"
54 #include "memory.h"
55 #include "misc.h"
56 #include "x11.h"
57
58 #ifdef WITH_X11
59 #include <X11/Xlib.h>
60 #include <X11/Xos.h>
61 #include <X11/Xutil.h>
62 #endif
63
64
65 #define FB_TICK_SHIFT 18
66
67
68 /* #define FB_DEBUG */
69
70 /*
71 * set_grayscale_palette():
72 *
73 * Fill d->rgb_palette with grayscale values. ncolors should
74 * be something like 2, 4, 16, or 256.
75 */
76 void set_grayscale_palette(struct vfb_data *d, int ncolors)
77 {
78 int i, gray;
79
80 for (i=0; i<256; i++) {
81 gray = 255*i/(ncolors-1);
82 d->rgb_palette[i*3 + 0] = gray;
83 d->rgb_palette[i*3 + 1] = gray;
84 d->rgb_palette[i*3 + 2] = gray;
85 }
86 }
87
88
89 /*
90 * set_blackwhite_palette():
91 *
92 * Set color 0 = black, all others to white.
93 */
94 void set_blackwhite_palette(struct vfb_data *d, int ncolors)
95 {
96 int i, gray;
97
98 for (i=0; i<256; i++) {
99 gray = i==0? 0 : 255;
100 d->rgb_palette[i*3 + 0] = gray;
101 d->rgb_palette[i*3 + 1] = gray;
102 d->rgb_palette[i*3 + 2] = gray;
103 }
104 }
105
106
107 /*
108 * dev_fb_resize():
109 *
110 * Resize a framebuffer window. (This functionality is probably a bit buggy,
111 * because I didn't think of including it from the start.)
112 */
113 void dev_fb_resize(struct vfb_data *d, int new_xsize, int new_ysize)
114 {
115 unsigned char *new_framebuffer;
116 int y, new_bytes_per_line;
117 size_t size;
118
119 if (d == NULL) {
120 fatal("dev_fb_resize(): d == NULL\n");
121 return;
122 }
123
124 new_bytes_per_line = new_xsize * d->bit_depth / 8;
125 size = new_ysize * new_bytes_per_line;
126
127 new_framebuffer = malloc(size);
128 if (new_framebuffer == NULL) {
129 fprintf(stderr, "dev_fb_resize(): out of memory\n");
130 exit(1);
131 }
132
133 /* Copy the old framebuffer to the new: */
134 if (d->framebuffer != NULL) {
135 for (y=0; y<new_ysize; y++) {
136 size_t fromofs = d->bytes_per_line * y;
137 size_t toofs = new_bytes_per_line * y;
138 size_t len_to_copy = d->bytes_per_line <
139 new_bytes_per_line? d->bytes_per_line
140 : new_bytes_per_line;
141 memset(new_framebuffer + toofs, 0, new_bytes_per_line);
142 if (y < d->x11_ysize)
143 memmove(new_framebuffer + toofs,
144 d->framebuffer + fromofs, len_to_copy);
145 }
146
147 free(d->framebuffer);
148 }
149
150 d->framebuffer = new_framebuffer;
151 d->framebuffer_size = size;
152
153 if (new_xsize > d->xsize || new_ysize > d->ysize) {
154 d->update_x1 = d->update_y1 = 0;
155 d->update_x2 = new_xsize - 1;
156 d->update_y2 = new_ysize - 1;
157 }
158
159 d->bytes_per_line = new_bytes_per_line;
160 d->xsize = d->visible_xsize = new_xsize;
161 d->ysize = d->visible_ysize = new_ysize;
162
163 d->x11_xsize = d->xsize / d->vfb_scaledown;
164 d->x11_ysize = d->ysize / d->vfb_scaledown;
165
166 #ifdef WITH_X11
167 if (d->fb_window != NULL)
168 x11_fb_resize(d->fb_window, new_xsize, new_ysize);
169 #endif
170 }
171
172
173 /*
174 * dev_fb_setcursor():
175 */
176 void dev_fb_setcursor(struct vfb_data *d, int cursor_x, int cursor_y, int on,
177 int cursor_xsize, int cursor_ysize)
178 {
179 if (cursor_x < 0)
180 cursor_x = 0;
181 if (cursor_y < 0)
182 cursor_y = 0;
183 if (cursor_x + cursor_xsize >= d->xsize)
184 cursor_x = d->xsize - cursor_xsize;
185 if (cursor_y + cursor_ysize >= d->ysize)
186 cursor_y = d->ysize - cursor_ysize;
187
188 #ifdef WITH_X11
189 if (d->fb_window != NULL) {
190 d->fb_window->cursor_x = cursor_x;
191 d->fb_window->cursor_y = cursor_y;
192 d->fb_window->cursor_on = on;
193 d->fb_window->cursor_xsize = cursor_xsize;
194 d->fb_window->cursor_ysize = cursor_ysize;
195 }
196 #endif
197
198 if (d->fb_window != NULL)
199 console_set_framebuffer_mouse(cursor_x, cursor_y,
200 d->fb_window->fb_number);
201
202 /* debug("dev_fb_setcursor(%i,%i, size %i,%i, on=%i)\n",
203 cursor_x, cursor_y, cursor_xsize, cursor_ysize, on); */
204 }
205
206
207 /*
208 * framebuffer_blockcopyfill():
209 *
210 * This function should be used by devices that are capable of doing
211 * block copy/fill.
212 *
213 * If fillflag is non-zero, then fill_[rgb] should contain the color
214 * with which to fill.
215 *
216 * If fillflag is zero, copy mode is used, and from_[xy] should contain
217 * the offset on the framebuffer where we should copy from.
218 *
219 * NOTE: Overlapping copies are undefined!
220 */
221 void framebuffer_blockcopyfill(struct vfb_data *d, int fillflag, int fill_r,
222 int fill_g, int fill_b, int x1, int y1, int x2, int y2,
223 int from_x, int from_y)
224 {
225 int y;
226 long from_ofs, dest_ofs, linelen;
227
228 if (fillflag)
229 debug("framebuffer_blockcopyfill(FILL, %i,%i, %i,%i, "
230 "color %i,%i,%i)\n", x1,y1, x2,y2, fill_r, fill_g, fill_b);
231 else
232 debug("framebuffer_blockcopyfill(COPY, %i,%i, %i,%i, from "
233 "%i,%i)\n", x1,y1, x2,y2, from_x,from_y);
234
235 /* Clip x: */
236 if (x1 < 0) x1 = 0;
237 if (x1 >= d->xsize) x1 = d->xsize-1;
238 if (x2 < 0) x2 = 0;
239 if (x2 >= d->xsize) x2 = d->xsize-1;
240
241 dest_ofs = d->bytes_per_line * y1 + (d->bit_depth/8) * x1;
242 linelen = (x2-x1 + 1) * (d->bit_depth/8);
243 /* NOTE: linelen is nr of bytes, not pixels */
244
245 if (fillflag) {
246 for (y=y1; y<=y2; y++) {
247 if (y>=0 && y<d->ysize) {
248 int x;
249 char buf[8192 * 3];
250 if (d->bit_depth == 24)
251 for (x=0; x<linelen && x<sizeof(buf);
252 x += 3) {
253 buf[x] = fill_r;
254 buf[x+1] = fill_g;
255 buf[x+2] = fill_b;
256 }
257 else {
258 fatal("[ fb: TODO: fill for non-24-bit"
259 " modes ]\n");
260 }
261
262 memmove(d->framebuffer + dest_ofs, buf,
263 linelen);
264 }
265
266 dest_ofs += d->bytes_per_line;
267 }
268 } else {
269 from_ofs = d->bytes_per_line * from_y +
270 (d->bit_depth/8) * from_x;
271
272 for (y=y1; y<=y2; y++) {
273 if (y>=0 && y<d->ysize)
274 memmove(d->framebuffer + dest_ofs,
275 d->framebuffer + from_ofs, linelen);
276
277 from_ofs += d->bytes_per_line;
278 dest_ofs += d->bytes_per_line;
279 }
280 }
281
282 if (x1 < d->update_x1 || d->update_x1 == -1) d->update_x1 = x1;
283 if (x1 > d->update_x2 || d->update_x2 == -1) d->update_x2 = x1;
284 if (x2 < d->update_x1 || d->update_x1 == -1) d->update_x1 = x2;
285 if (x2 > d->update_x2 || d->update_x2 == -1) d->update_x2 = x2;
286
287 if (y1 < d->update_y1 || d->update_y1 == -1) d->update_y1 = y1;
288 if (y1 > d->update_y2 || d->update_y2 == -1) d->update_y2 = y1;
289 if (y2 < d->update_y1 || d->update_y1 == -1) d->update_y1 = y2;
290 if (y2 > d->update_y2 || d->update_y2 == -1) d->update_y2 = y2;
291 }
292
293
294 #ifdef WITH_X11
295
296 #define REDRAW redraw_fallback
297 #include "fb_include.c"
298 #undef REDRAW
299
300 #define FB_24
301 #define REDRAW redraw_24
302 #include "fb_include.c"
303 #undef REDRAW
304 #undef FB_24
305 #define FB_16
306 #define REDRAW redraw_16
307 #include "fb_include.c"
308 #undef FB_16
309 #undef REDRAW
310 #define FB_15
311 #define REDRAW redraw_15
312 #include "fb_include.c"
313 #undef REDRAW
314 #undef FB_15
315
316 #define FB_BO
317 #define FB_24
318 #define REDRAW redraw_24_bo
319 #include "fb_include.c"
320 #undef REDRAW
321 #undef FB_24
322 #define FB_16
323 #define REDRAW redraw_16_bo
324 #include "fb_include.c"
325 #undef FB_16
326 #undef REDRAW
327 #define FB_15
328 #define REDRAW redraw_15_bo
329 #include "fb_include.c"
330 #undef REDRAW
331 #undef FB_15
332 #undef FB_BO
333
334 #define FB_SCALEDOWN
335
336 #define REDRAW redraw_fallback_sd
337 #include "fb_include.c"
338 #undef REDRAW
339
340 #define FB_24
341 #define REDRAW redraw_24_sd
342 #include "fb_include.c"
343 #undef REDRAW
344 #undef FB_24
345 #define FB_16
346 #define REDRAW redraw_16_sd
347 #include "fb_include.c"
348 #undef FB_16
349 #undef REDRAW
350 #define FB_15
351 #define REDRAW redraw_15_sd
352 #include "fb_include.c"
353 #undef REDRAW
354 #undef FB_15
355
356 #define FB_BO
357 #define FB_24
358 #define REDRAW redraw_24_bo_sd
359 #include "fb_include.c"
360 #undef REDRAW
361 #undef FB_24
362 #define FB_16
363 #define REDRAW redraw_16_bo_sd
364 #include "fb_include.c"
365 #undef FB_16
366 #undef REDRAW
367 #define FB_15
368 #define REDRAW redraw_15_bo_sd
369 #include "fb_include.c"
370 #undef REDRAW
371 #undef FB_15
372 #undef FB_BO
373
374 void (*redraw[2 * 4 * 2])(struct vfb_data *, int, int) = {
375 redraw_fallback, redraw_fallback,
376 redraw_15, redraw_15_bo,
377 redraw_16, redraw_16_bo,
378 redraw_24, redraw_24_bo,
379 redraw_fallback_sd, redraw_fallback_sd,
380 redraw_15_sd, redraw_15_bo_sd,
381 redraw_16_sd, redraw_16_bo_sd,
382 redraw_24_sd, redraw_24_bo_sd };
383
384 #endif /* WITH_X11 */
385
386
387 /*
388 * dev_fb_tick():
389 *
390 */
391 void dev_fb_tick(struct cpu *cpu, void *extra)
392 {
393 struct vfb_data *d = extra;
394 #ifdef WITH_X11
395 int need_to_flush_x11 = 0;
396 int need_to_redraw_cursor = 0;
397 #endif
398
399 if (!cpu->machine->use_x11)
400 return;
401
402 do {
403 uint64_t high, low = (uint64_t)(int64_t) -1;
404 int x, y;
405
406 memory_device_dyntrans_access(cpu, cpu->mem,
407 extra, &low, &high);
408 if ((int64_t)low == -1)
409 break;
410
411 /* printf("low=%016llx high=%016llx\n",
412 (long long)low, (long long)high); */
413
414 x = (low % d->bytes_per_line) * 8 / d->bit_depth;
415 y = low / d->bytes_per_line;
416 if (x < d->update_x1 || d->update_x1 == -1)
417 d->update_x1 = x;
418 if (x > d->update_x2 || d->update_x2 == -1)
419 d->update_x2 = x;
420 if (y < d->update_y1 || d->update_y1 == -1)
421 d->update_y1 = y;
422 if (y > d->update_y2 || d->update_y2 == -1)
423 d->update_y2 = y;
424
425 x = ((low+7) % d->bytes_per_line) * 8 / d->bit_depth;
426 y = (low+7) / d->bytes_per_line;
427 if (x < d->update_x1 || d->update_x1 == -1)
428 d->update_x1 = x;
429 if (x > d->update_x2 || d->update_x2 == -1)
430 d->update_x2 = x;
431 if (y < d->update_y1 || d->update_y1 == -1)
432 d->update_y1 = y;
433 if (y > d->update_y2 || d->update_y2 == -1)
434 d->update_y2 = y;
435
436 x = (high % d->bytes_per_line) * 8 / d->bit_depth;
437 y = high / d->bytes_per_line;
438 if (x < d->update_x1 || d->update_x1 == -1)
439 d->update_x1 = x;
440 if (x > d->update_x2 || d->update_x2 == -1)
441 d->update_x2 = x;
442 if (y < d->update_y1 || d->update_y1 == -1)
443 d->update_y1 = y;
444 if (y > d->update_y2 || d->update_y2 == -1)
445 d->update_y2 = y;
446
447 x = ((high+7) % d->bytes_per_line) * 8 / d->bit_depth;
448 y = (high+7) / d->bytes_per_line;
449 if (x < d->update_x1 || d->update_x1 == -1)
450 d->update_x1 = x;
451 if (x > d->update_x2 || d->update_x2 == -1)
452 d->update_x2 = x;
453 if (y < d->update_y1 || d->update_y1 == -1)
454 d->update_y1 = y;
455 if (y > d->update_y2 || d->update_y2 == -1)
456 d->update_y2 = y;
457
458 /*
459 * An update covering more than one line will automatically
460 * force an update of all the affected lines:
461 */
462 if (d->update_y1 != d->update_y2) {
463 d->update_x1 = 0;
464 d->update_x2 = d->xsize-1;
465 }
466 } while (0);
467
468 #ifdef WITH_X11
469 /* Do we need to redraw the cursor? */
470 if (d->fb_window->cursor_on != d->fb_window->OLD_cursor_on ||
471 d->fb_window->cursor_x != d->fb_window->OLD_cursor_x ||
472 d->fb_window->cursor_y != d->fb_window->OLD_cursor_y ||
473 d->fb_window->cursor_xsize != d->fb_window->OLD_cursor_xsize ||
474 d->fb_window->cursor_ysize != d->fb_window->OLD_cursor_ysize)
475 need_to_redraw_cursor = 1;
476
477 if (d->update_x2 != -1) {
478 if (((d->update_x1 >= d->fb_window->OLD_cursor_x &&
479 d->update_x1 < (d->fb_window->OLD_cursor_x +
480 d->fb_window->OLD_cursor_xsize)) ||
481 (d->update_x2 >= d->fb_window->OLD_cursor_x &&
482 d->update_x2 < (d->fb_window->OLD_cursor_x +
483 d->fb_window->OLD_cursor_xsize)) ||
484 (d->update_x1 < d->fb_window->OLD_cursor_x &&
485 d->update_x2 >= (d->fb_window->OLD_cursor_x +
486 d->fb_window->OLD_cursor_xsize)) ) &&
487 ( (d->update_y1 >= d->fb_window->OLD_cursor_y &&
488 d->update_y1 < (d->fb_window->OLD_cursor_y +
489 d->fb_window->OLD_cursor_ysize)) ||
490 (d->update_y2 >= d->fb_window->OLD_cursor_y &&
491 d->update_y2 < (d->fb_window->OLD_cursor_y +
492 d->fb_window->OLD_cursor_ysize)) ||
493 (d->update_y1 < d->fb_window->OLD_cursor_y &&
494 d->update_y2 >= (d->fb_window->OLD_cursor_y +
495 d->fb_window->OLD_cursor_ysize)) ) )
496 need_to_redraw_cursor = 1;
497 }
498
499 if (need_to_redraw_cursor) {
500 /* Remove old cursor, if any: */
501 if (d->fb_window->OLD_cursor_on) {
502 XPutImage(d->fb_window->x11_display,
503 d->fb_window->x11_fb_window,
504 d->fb_window->x11_fb_gc, d->fb_window->fb_ximage,
505 d->fb_window->OLD_cursor_x/d->vfb_scaledown,
506 d->fb_window->OLD_cursor_y/d->vfb_scaledown,
507 d->fb_window->OLD_cursor_x/d->vfb_scaledown,
508 d->fb_window->OLD_cursor_y/d->vfb_scaledown,
509 d->fb_window->OLD_cursor_xsize/d->vfb_scaledown + 1,
510 d->fb_window->OLD_cursor_ysize/d->vfb_scaledown +1);
511 }
512 }
513 #endif
514
515 if (d->update_x2 != -1) {
516 #ifdef WITH_X11
517 int y;
518 #endif
519 int addr, addr2, q = d->vfb_scaledown;
520
521 if (d->update_x1 >= d->visible_xsize)
522 d->update_x1 = d->visible_xsize - 1;
523 if (d->update_x2 >= d->visible_xsize)
524 d->update_x2 = d->visible_xsize - 1;
525 if (d->update_y1 >= d->visible_ysize)
526 d->update_y1 = d->visible_ysize - 1;
527 if (d->update_y2 >= d->visible_ysize)
528 d->update_y2 = d->visible_ysize - 1;
529
530 /* Without these, we might miss the rightmost/bottom pixel: */
531 d->update_x2 += (q - 1);
532 d->update_y2 += (q - 1);
533
534 d->update_x1 = d->update_x1 / q * q;
535 d->update_x2 = d->update_x2 / q * q;
536 d->update_y1 = d->update_y1 / q * q;
537 d->update_y2 = d->update_y2 / q * q;
538
539 addr = d->update_y1 * d->bytes_per_line +
540 d->update_x1 * d->bit_depth / 8;
541 addr2 = d->update_y1 * d->bytes_per_line +
542 d->update_x2 * d->bit_depth / 8;
543
544 #ifdef WITH_X11
545 for (y=d->update_y1; y<=d->update_y2; y+=q) {
546 d->redraw_func(d, addr, addr2 - addr);
547 addr += d->bytes_per_line * q;
548 addr2 += d->bytes_per_line * q;
549 }
550
551 XPutImage(d->fb_window->x11_display, d->fb_window->
552 x11_fb_window, d->fb_window->x11_fb_gc, d->fb_window->
553 fb_ximage, d->update_x1/d->vfb_scaledown, d->update_y1/
554 d->vfb_scaledown, d->update_x1/d->vfb_scaledown,
555 d->update_y1/d->vfb_scaledown,
556 (d->update_x2 - d->update_x1)/d->vfb_scaledown + 1,
557 (d->update_y2 - d->update_y1)/d->vfb_scaledown + 1);
558
559 need_to_flush_x11 = 1;
560 #endif
561
562 d->update_x1 = d->update_y1 = 99999;
563 d->update_x2 = d->update_y2 = -1;
564 }
565
566 #ifdef WITH_X11
567 if (need_to_redraw_cursor) {
568 /* Paint new cursor: */
569 if (d->fb_window->cursor_on) {
570 x11_redraw_cursor(cpu->machine,
571 d->fb_window->fb_number);
572 d->fb_window->OLD_cursor_on = d->fb_window->cursor_on;
573 d->fb_window->OLD_cursor_x = d->fb_window->cursor_x;
574 d->fb_window->OLD_cursor_y = d->fb_window->cursor_y;
575 d->fb_window->OLD_cursor_xsize = d->fb_window->
576 cursor_xsize;
577 d->fb_window->OLD_cursor_ysize = d->fb_window->
578 cursor_ysize;
579 need_to_flush_x11 = 1;
580 }
581 }
582 #endif
583
584 #ifdef WITH_X11
585 if (need_to_flush_x11)
586 XFlush(d->fb_window->x11_display);
587 #endif
588 }
589
590
591 /*
592 * dev_fb_access():
593 */
594 DEVICE_ACCESS(fb)
595 {
596 struct vfb_data *d = extra;
597 size_t i;
598
599 #ifdef FB_DEBUG
600 if (writeflag == MEM_WRITE) { if (data[0]) {
601 fatal("[ dev_fb: write to addr=%08lx, data = ",
602 (long)relative_addr);
603 for (i=0; i<len; i++)
604 fatal("%02x ", data[i]);
605 fatal("]\n");
606 } else {
607 fatal("[ dev_fb: read from addr=%08lx, data = ",
608 (long)relative_addr);
609 for (i=0; i<len; i++)
610 fatal("%02x ", d->framebuffer[relative_addr + i]);
611 fatal("]\n");
612 }
613 #endif
614
615 if (relative_addr >= d->framebuffer_size)
616 return 0;
617
618 /* See if a write actually modifies the framebuffer contents: */
619 if (writeflag == MEM_WRITE) {
620 for (i=0; i<len; i++) {
621 if (data[i] != d->framebuffer[relative_addr + i])
622 break;
623
624 /* If all bytes are equal to what is already stored
625 in the framebuffer, then simply return: */
626 if (i == len-1)
627 return 1;
628 }
629 }
630
631 /*
632 * If the framebuffer is modified, then we should keep a track
633 * of which area(s) we modify, so that the display isn't updated
634 * unnecessarily.
635 */
636 if (writeflag == MEM_WRITE && cpu->machine->use_x11) {
637 int x, y, x2,y2;
638
639 x = (relative_addr % d->bytes_per_line) * 8 / d->bit_depth;
640 y = relative_addr / d->bytes_per_line;
641 x2 = ((relative_addr + len) % d->bytes_per_line)
642 * 8 / d->bit_depth;
643 y2 = (relative_addr + len) / d->bytes_per_line;
644
645 if (x < d->update_x1 || d->update_x1 == -1)
646 d->update_x1 = x;
647 if (x > d->update_x2 || d->update_x2 == -1)
648 d->update_x2 = x;
649
650 if (y < d->update_y1 || d->update_y1 == -1)
651 d->update_y1 = y;
652 if (y > d->update_y2 || d->update_y2 == -1)
653 d->update_y2 = y;
654
655 if (x2 < d->update_x1 || d->update_x1 == -1)
656 d->update_x1 = x2;
657 if (x2 > d->update_x2 || d->update_x2 == -1)
658 d->update_x2 = x2;
659
660 if (y2 < d->update_y1 || d->update_y1 == -1)
661 d->update_y1 = y2;
662 if (y2 > d->update_y2 || d->update_y2 == -1)
663 d->update_y2 = y2;
664
665 /*
666 * An update covering more than one line will automatically
667 * force an update of all the affected lines:
668 */
669 if (y != y2) {
670 d->update_x1 = 0;
671 d->update_x2 = d->xsize-1;
672 }
673 }
674
675 /*
676 * Read from/write to the framebuffer:
677 * (TODO: take the color_plane_mask into account)
678 *
679 * Calling memcpy() is probably overkill, as it usually is just one
680 * or a few bytes that are read/written at a time.
681 */
682 if (writeflag == MEM_WRITE) {
683 if (len > 8)
684 memcpy(d->framebuffer + relative_addr, data, len);
685 else {
686 for (i=0; i<len; i++)
687 d->framebuffer[relative_addr + i] = data[i];
688 }
689 } else {
690 if (len > 8)
691 memcpy(data, d->framebuffer + relative_addr, len);
692 else {
693 for (i=0; i<len; i++)
694 data[i] = d->framebuffer[relative_addr + i];
695 }
696 }
697
698 return 1;
699 }
700
701
702 /*
703 * dev_fb_init():
704 *
705 * This function is big and ugly, but the point is to initialize a framebuffer
706 * device. :-)
707 *
708 * visible_xsize and visible_ysize are the sizes of the visible display area.
709 * xsize and ysize tell how much memory is actually allocated (for example
710 * visible_xsize could be 640, but xsize could be 1024, for better alignment).
711 *
712 * vfb_type is useful for selecting special features.
713 *
714 * type = VFB_GENERIC is the most useful type, especially when bit_depth = 24.
715 *
716 * VFB_DEC_VFB01, _VFB02, and VFB_DEC_MAXINE are DECstation specific.
717 *
718 * If type is VFB_HPC, then color encoding differs from the generic case.
719 *
720 * If bit_depth = -15 (note the minus sign), then a special hack is used for
721 * the Playstation Portable's 5-bit R, 5-bit G, 5-bit B.
722 */
723 struct vfb_data *dev_fb_init(struct machine *machine, struct memory *mem,
724 uint64_t baseaddr, int vfb_type, int visible_xsize, int visible_ysize,
725 int xsize, int ysize, int bit_depth, char *name)
726 {
727 struct vfb_data *d;
728 size_t size, nlen;
729 int flags;
730 int reverse_start = 0;
731 char title[400];
732 char *name2;
733
734 d = malloc(sizeof(struct vfb_data));
735 if (d == NULL) {
736 fprintf(stderr, "out of memory\n");
737 exit(1);
738 }
739 memset(d, 0, sizeof(struct vfb_data));
740
741 if (vfb_type & VFB_REVERSE_START) {
742 vfb_type &= ~VFB_REVERSE_START;
743 reverse_start = 1;
744 }
745
746 d->vfb_type = vfb_type;
747
748 /* Defaults: */
749 d->xsize = xsize; d->visible_xsize = visible_xsize;
750 d->ysize = ysize; d->visible_ysize = visible_ysize;
751
752 d->bit_depth = bit_depth;
753
754 if (bit_depth == 15) {
755 d->color32k = 1;
756 bit_depth = d->bit_depth = 16;
757 } else if (bit_depth == -15) {
758 d->psp_15bit = 1;
759 bit_depth = d->bit_depth = 16;
760 }
761
762 /* Specific types: */
763 switch (vfb_type) {
764 case VFB_DEC_VFB01:
765 /* DECstation VFB01 (monochrome) */
766 d->xsize = 2048; d->visible_xsize = 1024;
767 d->ysize = 1024; d->visible_ysize = 864;
768 d->bit_depth = 1;
769 break;
770 case VFB_DEC_VFB02:
771 /* DECstation VFB02 (color) */
772 d->xsize = 1024; d->visible_xsize = 1024;
773 d->ysize = 1024; d->visible_ysize = 864;
774 d->bit_depth = 8;
775 break;
776 case VFB_DEC_MAXINE:
777 /* DECstation Maxine (1024x768x8) */
778 d->xsize = 1024; d->visible_xsize = d->xsize;
779 d->ysize = 768; d->visible_ysize = d->ysize;
780 d->bit_depth = 8;
781 break;
782 case VFB_PLAYSTATION2:
783 /* Playstation 2 */
784 d->xsize = xsize; d->visible_xsize = d->xsize;
785 d->ysize = ysize; d->visible_ysize = d->ysize;
786 d->bit_depth = 24;
787 break;
788 }
789
790 if (d->bit_depth == 2 || d->bit_depth == 4)
791 set_grayscale_palette(d, 1 << d->bit_depth);
792 else if (d->bit_depth == 8 || d->bit_depth == 1)
793 set_blackwhite_palette(d, 1 << d->bit_depth);
794
795 d->vfb_scaledown = machine->x11_scaledown;
796
797 d->bytes_per_line = d->xsize * d->bit_depth / 8;
798 size = d->ysize * d->bytes_per_line;
799
800 d->framebuffer = malloc(size);
801 if (d->framebuffer == NULL) {
802 fprintf(stderr, "out of memory\n");
803 exit(1);
804 }
805
806 /* Clear the framebuffer (all black pixels): */
807 d->framebuffer_size = size;
808 memset(d->framebuffer, reverse_start? 255 : 0, size);
809
810 d->x11_xsize = d->visible_xsize / d->vfb_scaledown;
811 d->x11_ysize = d->visible_ysize / d->vfb_scaledown;
812
813 /* Only "update" from the start if we need to fill with white. */
814 /* (The Ximage will be black from the start anyway.) */
815 if (reverse_start) {
816 d->update_x1 = d->update_y1 = 0;
817 d->update_x2 = d->xsize - 1;
818 d->update_y2 = d->ysize - 1;
819 } else {
820 d->update_x1 = d->update_y1 = 99999;
821 d->update_x2 = d->update_y2 = -1;
822 }
823
824 /* Don't set the title to include the size of the framebuffer for
825 VGA, since then the resolution might change during runtime. */
826 if (strcmp(name, "VGA") == 0)
827 snprintf(title, sizeof(title),"GXemul: %s framebuffer", name);
828 else
829 snprintf(title, sizeof(title),"GXemul: %ix%ix%i %s framebuffer",
830 d->visible_xsize, d->visible_ysize, d->bit_depth, name);
831 title[sizeof(title)-1] = '\0';
832
833 #ifdef WITH_X11
834 if (machine->use_x11) {
835 int i = 0;
836 d->fb_window = x11_fb_init(d->x11_xsize, d->x11_ysize,
837 title, machine->x11_scaledown, machine);
838 switch (d->fb_window->x11_screen_depth) {
839 case 15: i = 2; break;
840 case 16: i = 4; break;
841 case 24: i = 6; break;
842 }
843 if (d->fb_window->fb_ximage->byte_order)
844 i ++;
845 if (d->vfb_scaledown > 1)
846 i += 8;
847 d->redraw_func = redraw[i];
848 } else
849 #endif
850 d->fb_window = NULL;
851
852 nlen = strlen(name) + 10;
853 name2 = malloc(nlen);
854 if (name2 == NULL) {
855 fprintf(stderr, "out of memory in dev_fb_init()\n");
856 exit(1);
857 }
858 snprintf(name2, nlen, "fb [%s]", name);
859
860 flags = DM_DEFAULT;
861 if ((baseaddr & 0xfff) == 0)
862 flags = DM_DYNTRANS_OK | DM_DYNTRANS_WRITE_OK;
863
864 flags |= DM_READS_HAVE_NO_SIDE_EFFECTS;
865
866 memory_device_register(mem, name2, baseaddr, size, dev_fb_access,
867 d, flags, d->framebuffer);
868
869 machine_add_tickfunction(machine, dev_fb_tick, d, FB_TICK_SHIFT, 0.0);
870 return d;
871 }
872
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