/[gxemul]/trunk/src/devices/dev_ps2_gif.c
This is repository of my old source code which isn't updated any more. Go to git.rot13.org for current projects!
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Annotation of /trunk/src/devices/dev_ps2_gif.c

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Revision 34 - (hide annotations)
Mon Oct 8 16:21:17 2007 UTC (16 years, 8 months ago) by dpavlin
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++ trunk/HISTORY	(local)
$Id: HISTORY,v 1.1480 2007/02/19 01:34:42 debug Exp $
20061029	Changing usleep(1) calls in the debugger to usleep(10000)
20061107	Adding a new disk image option (-d o...) which sets the ISO9660
		filesystem base offset; also making some other hacks to allow
		NetBSD/dreamcast and homebrew demos/games to boot directly
		from a filesystem image.
		Moving Dreamcast-specific stuff in the documentation to its
		own page (dreamcast.html).
		Adding a border to the Dreamcast PVR framebuffer.
20061108	Adding a -T command line option (again?), for halting the
		emulator on unimplemented memory accesses.
20061109	Continuing on various SH4 and Dreamcast related things.
		The emulator should now halt on more unimplemented device
		accesses, instead of just printing a warning, forcing me to
		actually implement missing stuff :)
20061111	Continuing on SH4 and Dreamcast stuff.
		Adding a bogus Landisk (SH4) machine mode.
20061112	Implementing some parts of the Dreamcast GDROM device. With
		some ugly hacks, NetBSD can (barely) mount an ISO image.
20061113	NetBSD/dreamcast now starts booting from the Live CD image,
		but crashes randomly quite early on in the boot process.
20061122	Beginning on a skeleton interrupt.h and interrupt.c for the
		new interrupt subsystem.
20061124	Continuing on the new interrupt system; taking the first steps
		to attempt to connect CPUs (SuperH and MIPS) and devices
		(dev_cons and SH4 timer interrupts) to it. Many things will
		probably break from now on.
20061125	Converting dev_ns16550, dev_8253 to the new interrupt system.
		Attempting to begin to convert the ISA bus.
20061130	Incorporating a patch from Brian Foley for the configure
		script, which checks for X11 libs in /usr/X11R6/lib64 (which
		is used on some Linux systems).
20061227	Adding a note in the man page about booting from Dreamcast
		CDROM images (i.e. that no external kernel is needed).
20061229	Continuing on the interrupt system rewrite: beginning to
		convert more devices, adding abort() calls for legacy interrupt
		system calls so that everything now _has_ to be rewritten!
		Almost all machine modes are now completely broken.
20061230	More progress on removing old interrupt code, mostly related
		to the ISA bus + devices, the LCA bus (on AlphaBook1), and
		the Footbridge bus (for CATS). And some minor PCI stuff.
		Connecting the ARM cpu to the new interrupt system.
		The CATS, NetWinder, and QEMU_MIPS machine modes now work with
		the new interrupt system :)
20061231	Connecting PowerPC CPUs to the new interrupt system.
		Making PReP machines (IBM 6050) work again.
		Beginning to convert the GT PCI controller (for e.g. Malta
		and Cobalt emulation). Some things work, but not everything.
		Updating Copyright notices for 2007.
20070101	Converting dev_kn02 from legacy style to devinit; the 3max
		machine mode now works with the new interrupt system :-]
20070105	Beginning to convert the SGI O2 machine to the new interrupt
		system; finally converting O2 (IP32) devices to devinit, etc.
20070106	Continuing on the interrupt system redesign/rewrite; KN01
		(PMAX), KN230, and Dreamcast ASIC interrupts should work again,
		moving out stuff from machine.h and devices.h into the
		corresponding devices, beginning the rewrite of i80321
		interrupts, etc.
20070107	Beginning on the rewrite of Eagle interrupt stuff (PReP, etc).
20070117	Beginning the rewrite of Algor (V3) interrupts (finally
		changing dev_v3 into devinit style).
20070118	Removing the "bus" registry concept from machine.h, because
		it was practically meaningless.
		Continuing on the rewrite of Algor V3 ISA interrupts.
20070121	More work on Algor interrupts; they are now working again,
		well enough to run NetBSD/algor. :-)
20070122	Converting VR41xx (HPCmips) interrupts. NetBSD/hpcmips
		can be installed using the new interrupt system :-)
20070123	Making the testmips mode work with the new interrupt system.
20070127	Beginning to convert DEC5800 devices to devinit, and to the
		new interrupt system.
		Converting Playstation 2 devices to devinit, and converting
		the interrupt system. Also fixing a severe bug: the interrupt
		mask register on Playstation 2 is bitwise _toggled_ on writes.
20070128	Removing the dummy NetGear machine mode and the 8250 device
		(which was only used by the NetGear machine).
		Beginning to convert the MacPPC GC (Grand Central) interrupt
		controller to the new interrupt system.
		Converting Jazz interrupts (PICA61 etc.) to the new interrupt
		system. NetBSD/arc can be installed again :-)
		Fixing the JAZZ timer (hardcoding it at 100 Hz, works with
		NetBSD and it is better than a completely dummy timer as it
		was before).
		Converting dev_mp to the new interrupt system, although I
		haven't had time to actually test it yet.
		Completely removing src/machines/interrupts.c, cpu_interrupt
		and cpu_interrupt_ack in src/cpu.c, and
		src/include/machine_interrupts.h! Adding fatal error messages
		+ abort() in the few places that are left to fix.
		Converting dev_z8530 to the new interrupt system.
		FINALLY removing the md_int struct completely from the
		machine struct.
		SH4 fixes (adding a PADDR invalidation in the ITLB replacement
		code in memory_sh.c); the NetBSD/dreamcast LiveCD now runs
		all the way to the login prompt, and can be interacted with :-)
		Converting the CPC700 controller (PCI and interrupt controller
		for PM/PPC) to the new interrupt system.
20070129	Fixing MACE ISA interrupts (SGI IP32 emulation). Both NetBSD/
		sgimips' and OpenBSD/sgi's ramdisk kernels can now be
		interacted with again.
20070130	Moving out the MIPS multi_lw and _sw instruction combinations
		so that they are auto-generated at compile time instead.
20070131	Adding detection of amd64/x86_64 hosts in the configure script,
		for doing initial experiments (again :-) with native code
		generation.
		Adding a -k command line option to set the size of the dyntrans
		cache, and a -B command line option to disable native code
		generation, even if GXemul was compiled with support for
		native code generation for the specific host CPU architecture.
20070201	Experimenting with a skeleton for native code generation.
		Changing the default behaviour, so that native code generation
		is now disabled by default, and has to be enabled by using
		-b on the command line.
20070202	Continuing the native code generation experiments.
		Making PCI interrupts work for Footbridge again.
20070203	More native code generation experiments.
		Removing most of the native code generation experimental code,
		it does not make sense to include any quick hacks like this.
		Minor cleanup/removal of some more legacy MIPS interrupt code.
20070204	Making i80321 interrupts work again (for NetBSD/evbarm etc.),
		and fixing the timer at 100 Hz.
20070206	Experimenting with removing the wdc interrupt slowness hack.
20070207	Lowering the number of dyntrans TLB entries for MIPS from
		192 to 128, resulting in a minor speed improvement.
		Minor optimization to the code invalidation routine in
		cpu_dyntrans.c.
20070208	Increasing (experimentally) the nr of dyntrans instructions per
		loop from 60 to 120.
20070210	Commenting out (experimentally) the dyntrans_device_danger
		detection in memory_rw.c.
		Changing the testmips and baremips machines to use a revision 2
		MIPS64 CPU by default, instead of revision 1.
		Removing the dummy i960, IA64, x86, AVR32, and HP PA-RISC
		files, the PC bios emulation, and the Olivetti M700 (ARC) and
		db64360 emulation modes.
20070211	Adding an "mp" demo to the demos directory, which tests the
		SMP functionality of the testmips machine.
		Fixing PReP interrupts some more. NetBSD/prep now boots again.
20070216	Adding a "nop workaround" for booting Mach/PMAX to the
		documentation; thanks to Artur Bujdoso for the values.
		Converting more of the MacPPC interrupt stuff to the new
		system.
		Beginning to convert BeBox interrupts to the new system.
		PPC603e should NOT have the PPC_NO_DEC flag! Removing it.
		Correcting BeBox clock speed (it was set to 100 in the NetBSD
		bootinfo block, but should be 33000000/4), allowing NetBSD
		to start without using the (incorrect) PPC_NO_DEC hack.
20070217	Implementing (slow) AltiVec vector loads and stores, allowing
		NetBSD/macppc to finally boot using the GENERIC kernel :-)
		Updating the documentation with install instructions for
		NetBSD/macppc.
20070218-19	Regression testing for the release.

==============  RELEASE 0.4.4  ==============
1 dpavlin 4 /*
2 dpavlin 34 * Copyright (C) 2003-2007 Anders Gavare. All rights reserved.
3 dpavlin 4 *
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 dpavlin 34 * $Id: dev_ps2_gif.c,v 1.34 2006/12/30 13:30:58 debug Exp $
29 dpavlin 4 *
30     * Playstation 2 "gif" graphics device.
31     *
32     * TODO: Convert dev_fb_access() accesses into direct framebuffer reads and
33     * writes, to improve performance.
34     *
35     * TODO 2: The way things are now, rgb bytes are copied from emulated
36     * space to the framebuffer as rgb, but on X Windows servers on
37     * big-endian machines that should be bgr. (?) Hm...
38     */
39    
40     #include <stdio.h>
41     #include <stdlib.h>
42     #include <string.h>
43    
44     #include "cpu.h"
45     #include "device.h"
46     #include "devices.h"
47     #include "machine.h"
48     #include "memory.h"
49     #include "misc.h"
50    
51    
52     #define DEV_PS2_GIF_LENGTH 0x10000
53    
54     #define PS2_FB_ADDR 0x60000000ULL /* hopefully nothing else here */
55    
56    
57     struct gif_data {
58     struct cpu *cpu;
59     int xsize, ysize;
60     int bytes_per_pixel;
61     int transparent_text;
62     struct vfb_data *vfb_data;
63     };
64    
65    
66     /*
67     * test_triangle():
68     *
69     * Draw a triangle:
70     */
71     void test_triangle(struct gif_data *d,
72     int x1, int y1, int r1, int g1, int b1,
73     int x2, int y2, int r2, int g2, int b2,
74     int x3, int y3, int r3, int g3, int b3)
75     {
76     unsigned char *line = malloc(d->xsize * d->bytes_per_pixel);
77     int y, tmp, scale = 32768;
78     int xofs, xlen, savedxlen, xdir, x;
79     int r, g, b; /* scaled */
80     int xstart, xstop; /* scaled */
81     int rstart, rstop; /* scaled */
82     int gstart, gstop; /* scaled */
83     int bstart, bstop; /* scaled */
84     int rpx, gpx, bpx; /* scaled */
85     int xpy12, xpy13, xpy23;
86     int rpy12, rpy13, rpy23;
87     int gpy12, gpy13, gpy23;
88     int bpy12, bpy13, bpy23;
89    
90     if (y2 > y3) {
91     tmp = x2; x2 = x3; x3 = tmp;
92     tmp = y2; y2 = y3; y3 = tmp;
93     tmp = r2; r2 = r3; r3 = tmp;
94     tmp = g2; g2 = g3; g3 = tmp;
95     tmp = b2; b2 = b3; b3 = tmp;
96     }
97    
98     if (y1 > y2) {
99     tmp = x1; x1 = x2; x2 = tmp;
100     tmp = y1; y1 = y2; y2 = tmp;
101     tmp = r1; r1 = r2; r2 = tmp;
102     tmp = g1; g1 = g2; g2 = tmp;
103     tmp = b1; b1 = b2; b2 = tmp;
104     }
105    
106     if (y1 > y3) {
107     tmp = x1; x1 = x3; x3 = tmp;
108     tmp = y1; y1 = y3; y3 = tmp;
109     tmp = r1; r1 = r3; r3 = tmp;
110     tmp = g1; g1 = g3; g3 = tmp;
111     tmp = b1; b1 = b3; b3 = tmp;
112     }
113    
114     /* X change per line: */
115     xpy12 = (y2-y1)? scale*(x2-x1)/(y2-y1) : 0;
116     xpy13 = (y3-y1)? scale*(x3-x1)/(y3-y1) : 0;
117     xpy23 = (y3-y2)? scale*(x3-x2)/(y3-y2) : 0;
118    
119     /* Color change per line: */
120     rpy12 = (y2-y1)? scale*(r2-r1)/(y2-y1) : 0;
121     rpy13 = (y3-y1)? scale*(r3-r1)/(y3-y1) : 0;
122     rpy23 = (y3-y2)? scale*(r3-r2)/(y3-y2) : 0;
123    
124     gpy12 = (y2-y1)? scale*(g2-g1)/(y2-y1) : 0;
125     gpy13 = (y3-y1)? scale*(g3-g1)/(y3-y1) : 0;
126     gpy23 = (y3-y2)? scale*(g3-g2)/(y3-y2) : 0;
127    
128     bpy12 = (y2-y1)? scale*(b2-b1)/(y2-y1) : 0;
129     bpy13 = (y3-y1)? scale*(b3-b1)/(y3-y1) : 0;
130     bpy23 = (y3-y2)? scale*(b3-b2)/(y3-y2) : 0;
131    
132     xstart = xstop = x1 * scale;
133     rstart = rstop = r1 * scale;
134     gstart = gstop = g1 * scale;
135     bstart = bstop = b1 * scale;
136    
137     for (y=y1; y<=y3; y++) {
138     if (xstart < xstop)
139     xofs = xstart/scale, xlen = (xstop-xstart)/scale + 1;
140     else
141     xofs = xstop/scale, xlen = (xstart-xstop)/scale + 1;
142    
143     savedxlen = xlen;
144     xdir = (xstart < xstop)? 1 : -1;
145     r = rstart; g = gstart; b = bstart;
146    
147     rpx = (xstop-xstart)? (rstop-rstart) / ((xstop-xstart)
148     / scale) : 0;
149     gpx = (xstop-xstart)? (gstop-gstart) / ((xstop-xstart)
150     / scale) : 0;
151     bpx = (xstop-xstart)? (bstop-bstart) / ((xstop-xstart)
152     / scale): 0;
153    
154     x = xstart / scale;
155     while (xlen > 0) {
156     if (x>=0 && x<d->xsize) {
157     int c;
158     c = r/scale;
159     line[x * d->bytes_per_pixel + 0] = c<0?
160     0 : (c > 255? 255 : c);
161     c = g/scale;
162     line[x * d->bytes_per_pixel + 1] = c<0?
163     0 : (c > 255? 255 : c);
164     c = b/scale;
165     line[x * d->bytes_per_pixel + 2] = c<0?
166     0 : (c > 255? 255 : c);
167     }
168     r += rpx;
169     g += gpx;
170     b += bpx;
171     x += xdir;
172     xlen --;
173     }
174    
175     dev_fb_access(d->cpu, d->cpu->mem,
176     (y*d->xsize + xofs) * d->bytes_per_pixel,
177     line + xofs * d->bytes_per_pixel,
178     savedxlen * d->bytes_per_pixel,
179     MEM_WRITE, d->vfb_data);
180    
181     if (y<y2) {
182     xstart += xpy12;
183     rstart += rpy12;
184     gstart += gpy12;
185     bstart += bpy12;
186     } else {
187     xstart += xpy23;
188     rstart += rpy23;
189     gstart += gpy23;
190     bstart += bpy23;
191     }
192     xstop += xpy13;
193     rstop += rpy13;
194     gstop += gpy13;
195     bstop += bpy13;
196    
197     if (y==y2) {
198     xstart = x2 * scale;
199     rstart = r2 * scale;
200     gstart = g2 * scale;
201     bstart = b2 * scale;
202     }
203     }
204     }
205    
206    
207     /*
208     * dev_ps2_gif_access():
209     */
210 dpavlin 22 DEVICE_ACCESS(ps2_gif)
211 dpavlin 4 {
212 dpavlin 22 unsigned int i;
213 dpavlin 4 struct gif_data *d = extra;
214    
215     if (relative_addr + len > DEV_PS2_GIF_LENGTH)
216     return 0;
217    
218     if (writeflag==MEM_READ) {
219     debug("[ gif read from addr 0x%x, len=%i ]\n",
220     (int)relative_addr, (int)len);
221     } else {
222     if (data[0] == 0x08 && data[1] == 0x80) {
223     /* Possibly "initialize 640x480 mode": */
224     debug("[ gif: initialize video mode (?) ]\n");
225     } else if (data[0] == 0x04 && data[1] == 0x00 && len > 300) {
226     /* Possibly "output 8x16 character": */
227     int xbase, ybase, xsize, ysize, x, y;
228    
229     xbase = data[9*4 + 0] + (data[9*4 + 1] << 8);
230     ybase = data[9*4 + 2] + (data[9*4 + 3] << 8);
231    
232     xsize = data[12*4 + 0] + (data[12*4 + 1] << 8);
233     ysize = data[13*4 + 0] + (data[13*4 + 1] << 8);
234     ysize &= ~0xf; /* multple of 16 */
235    
236     /* debug("[ gif: putchar at (%i,%i), size (%i,%i) "
237     "]\n", xbase, ybase, xsize, ysize); */
238    
239     /*
240     * NetBSD and Linux:
241     *
242 dpavlin 22 * [ gif write to addr 0x0 (len=608):
243     * 04 00 00 00 00 00 00 10, 0e 00 00 00 00 00 00 00,
244     * 00 00 00 00 00 00 0a 00, 50 00 00 00 00 00 00 00,
245     * 00 00 00 00 00 00 00 00, 51 00 00 00 00 00 00 00,
246     * 08 00 00 00 16 00 00 00, 52 00 00 00 00 00 00 00,
247     * 00 00 00 00 00 00 00 00, 53 00 00 00 00 00 00 00,
248     * 20 80 00 00 00 00 00 08, 00 00 00 00 00 00 00 00,
249     * 00 00 aa 80 00 00 aa 80, 00 00 aa 80 00 00 aa 80,
250     * 00 00 aa 80 00 00 aa 80, 00 00 aa 80 00 00 aa 80,
251     * aa aa 00 80 aa aa 00 80, 00 00 aa 80 00 00 aa 80,
252     * 00 00 aa 80 00 00 aa 80, 00 00 aa 80 00 00 aa 80,
253 dpavlin 4 */
254    
255     /*
256     fatal("[ gif write to addr 0x%x (len=%i):",
257     (int)relative_addr, (int)len);
258     for (i=0; i<len; i++) {
259     fatal(" %02x", data[i]);
260     if ((i & 7) == 7)
261     fatal(",");
262     if ((i & 31) == 31)
263     fatal("\n");
264     }
265     fatal(" ]\n");
266     */
267    
268     for (y=0; y<ysize; y++) {
269     int fb_addr = (xbase + (ybase+y) * d->xsize)
270     * d->bytes_per_pixel;
271     int addr = (24 + y*xsize) * 4;
272     for (x=0; x<xsize; x++) {
273 dpavlin 22 /* There are three bytes (r,g,b) at
274     data[addr + 0] .. [addr + 2].
275     TODO: This should be translated to a
276     direct update of the framebuffer. */
277 dpavlin 4
278     dev_fb_access(d->cpu, d->cpu->mem,
279 dpavlin 22 fb_addr, data + addr, 3, MEM_WRITE,
280     d->vfb_data);
281 dpavlin 4
282     fb_addr += d->bytes_per_pixel;
283     addr += 4;
284     }
285     }
286 dpavlin 22 } else if (data[0] == 0x04 && data[1] == 0x80 && len == 0x50) {
287     /* blockcopy */
288 dpavlin 4 int y_source, y_dest, x_source, x_dest, x_size, y_size;
289     x_source = data[8*4 + 0] + ((data[8*4 + 1]) << 8);
290     y_source = data[8*4 + 2] + ((data[8*4 + 3]) << 8);
291     x_dest = data[9*4 + 0] + ((data[9*4 + 1]) << 8);
292     y_dest = data[9*4 + 2] + ((data[9*4 + 3]) << 8);
293     x_size = data[12*4 + 0] + ((data[12*4 + 1]) << 8);
294     y_size = data[13*4 + 0] + ((data[13*4 + 1]) << 8);
295    
296 dpavlin 22 /* debug("[ gif: blockcopy (%i,%i) -> (%i,%i), size="
297     "(%i,%i) ]\n", x_source,y_source, x_dest,y_dest,
298     x_size,y_size); */
299 dpavlin 4
300 dpavlin 22 framebuffer_blockcopyfill(d->vfb_data, 0, 0,0,0,
301     x_dest, y_dest, x_dest + x_size - 1, y_dest +
302     y_size - 1, x_source, y_source);
303     } else if (data[8] == 0x10 && data[9] == 0x55 && len == 48) {
304     /* Linux "clear": This is used by linux to clear the
305     lowest 16 pixels of the framebuffer. */
306 dpavlin 4 int xbase, ybase, xend, yend;
307    
308     xbase = (data[8*4 + 0] + (data[8*4 + 1] << 8)) / 16;
309     ybase = (data[8*4 + 2] + (data[8*4 + 3] << 8)) / 16;
310     xend = (data[8*5 + 0] + (data[8*5 + 1] << 8)) / 16;
311     yend = (data[8*5 + 2] + (data[8*5 + 3] << 8)) / 16;
312    
313 dpavlin 22 /* debug("[ gif: linux \"clear\" (%i,%i)-(%i,%i) ]\n",
314     xbase, ybase, xend, yend); */
315 dpavlin 4
316 dpavlin 22 framebuffer_blockcopyfill(d->vfb_data, 1, 0,0,0,
317     xbase, ybase, xend - 1, yend - 1, 0,0);
318     } else if (data[0] == 0x07 && data[1] == 0x80 && len == 128) {
319     /* NetBSD "output cursor": */
320 dpavlin 4 int xbase, ybase, xend, yend, x, y;
321    
322     xbase = (data[20*4 + 0] + (data[20*4 + 1] << 8)) / 16;
323     ybase = (data[20*4 + 2] + (data[20*4 + 3] << 8)) / 16;
324     xend = (data[28*4 + 0] + (data[28*4 + 1] << 8)) / 16;
325     yend = (data[28*4 + 2] + (data[28*4 + 3] << 8)) / 16;
326    
327 dpavlin 22 /* debug("[ gif: NETBSD cursor at (%i,%i)-(%i,%i) ]\n",
328     xbase, ybase, xend, yend); */
329 dpavlin 4
330     /* Output the cursor to framebuffer memory: */
331    
332     for (y=ybase; y<=yend; y++)
333     for (x=xbase; x<=xend; x++) {
334 dpavlin 22 int fb_addr = (x + y * d->xsize) *
335     d->bytes_per_pixel;
336 dpavlin 4 unsigned char pixels[3];
337    
338     dev_fb_access(d->cpu, d->cpu->mem,
339     fb_addr, pixels, sizeof(pixels),
340     MEM_READ, d->vfb_data);
341    
342     pixels[0] = 0xff - pixels[0];
343     pixels[1] = 0xff - pixels[1];
344     pixels[2] = 0xff - pixels[2];
345    
346     dev_fb_access(d->cpu, d->cpu->mem,
347     fb_addr, pixels, sizeof(pixels),
348     MEM_WRITE, d->vfb_data);
349     }
350 dpavlin 22 } else if (data[0] == 0x01 && data[1] == 0x00 && len == 80) {
351     /* Linux "output cursor": */
352 dpavlin 4 int xbase, ybase, xend, yend, x, y;
353    
354     xbase = (data[7*8 + 0] + (data[7*8 + 1] << 8)) / 16;
355     ybase = (data[7*8 + 2] + (data[7*8 + 3] << 8)) / 16;
356     xend = (data[8*8 + 0] + (data[8*8 + 1] << 8)) / 16;
357     yend = (data[8*8 + 2] + (data[8*8 + 3] << 8)) / 16;
358    
359 dpavlin 22 debug("[ gif: LINUX cursor at (%i,%i)-(%i,%i) ]\n",
360     xbase, ybase, xend, yend);
361 dpavlin 4
362     /* Output the cursor to framebuffer memory: */
363    
364     for (y=ybase; y<=yend; y++)
365     for (x=xbase; x<=xend; x++) {
366 dpavlin 22 int fb_addr = (x + y * d->xsize) *
367     d->bytes_per_pixel;
368 dpavlin 4 unsigned char pixels[3];
369    
370     dev_fb_access(d->cpu, d->cpu->mem,
371     fb_addr, pixels, sizeof(pixels),
372     MEM_READ, d->vfb_data);
373    
374     pixels[0] = 0xff - pixels[0];
375     pixels[1] = 0xff - pixels[1];
376     pixels[2] = 0xff - pixels[2];
377    
378     dev_fb_access(d->cpu, d->cpu->mem,
379     fb_addr, pixels, sizeof(pixels),
380     MEM_WRITE, d->vfb_data);
381     }
382     } else { /* Unknown command: */
383 dpavlin 22 fatal("[ gif write to addr 0x%x (len=%i):",
384     (int)relative_addr, len);
385 dpavlin 4 for (i=0; i<len; i++)
386     fatal(" %02x", data[i]);
387     fatal(" ]\n");
388     /* fatal("Unknown gif command.\n");
389     cpu->running = 0;
390     */ }
391     }
392    
393     return 1;
394     }
395    
396    
397     /*
398     * devinit_ps2_gif():
399     *
400     * Attached to separate memory by devinit_ps2_gs().
401     */
402 dpavlin 22 DEVINIT(ps2_gif)
403 dpavlin 4 {
404     struct gif_data *d;
405    
406     d = malloc(sizeof(struct gif_data));
407     if (d == NULL) {
408     fprintf(stderr, "out of memory\n");
409     exit(1);
410     }
411     memset(d, 0, sizeof(struct gif_data));
412    
413     d->transparent_text = 0;
414     d->cpu = devinit->machine->cpus[0]; /* TODO */
415     d->xsize = 640; d->ysize = 480;
416     d->bytes_per_pixel = 3;
417    
418     d->vfb_data = dev_fb_init(devinit->machine, devinit->machine->memory,
419     PS2_FB_ADDR, VFB_PLAYSTATION2,
420 dpavlin 12 d->xsize, d->ysize, d->xsize, d->ysize, 24, "Playstation 2");
421 dpavlin 4 if (d->vfb_data == NULL) {
422     fprintf(stderr, "could not initialize fb, out of memory\n");
423     exit(1);
424     }
425    
426     #if 0
427 dpavlin 22 test_triangle(d, 300,50, 255,0,0, 50,150, 0,255,0, 600,400, 0,0,255);
428     test_triangle(d, 310,210, 128,32,0, 175,410, 0,32,0,
429     500,470, 125,255,125);
430     test_triangle(d, 100,450, 255,255,0, 250,370, 0,255,255,
431     400,470, 255,0,255);
432 dpavlin 4 #endif
433    
434     memory_device_register(devinit->machine->memory, devinit->name,
435     devinit->addr, DEV_PS2_GIF_LENGTH, dev_ps2_gif_access, d,
436 dpavlin 20 DM_DEFAULT, NULL);
437 dpavlin 4
438     return 1;
439     }
440    
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