/[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!
ViewVC logotype

Annotation of /trunk/src/devices/dev_ps2_gif.c

Parent Directory Parent Directory | Revision Log Revision Log

Revision 4 - (hide annotations)
Mon Oct 8 16:18:00 2007 UTC (16 years, 6 months ago) by dpavlin
File MIME type: text/plain
File size: 13022 byte(s) 
++ trunk/HISTORY	(local)
$Id: HISTORY,v 1.707 2005/04/27 16:37:33 debug Exp $
20050408	Some minor updates to the wdc. Linux now doesn't complain
		anymore if a disk is non-present.
20050409	Various minor fixes (a bintrans bug, and some other things).
		The wdc seems to work with Playstation2 emulation, but there
		is a _long_ annoying delay when disks are detected.
		Fixing a really important bintrans bug (when devices and RAM
		are mixed within 4KB pages), which was triggered with
		NetBSD/playstation2 kernels.
20050410	Adding a dummy dev_ps2_ether (just so that NetBSD doesn't
		complain as much during bootup).
		Symbols starting with '$' are now ignored.
		Renaming dev_ps2_ohci.c to dev_ohci.c, etc.
20050411	Moving the bintrans-cache-isolation check from cpu_mips.c to
		cpu_mips_coproc.c. (I thought this would give a speedup, but
		it's not noticable.)
		Better playstation2 sbus interrupt code.
		Skip ahead many ticks if the count register is read manually.
		(This increases the speed of delay-loops that simply read
		the count register.)
20050412	Updates to the playstation2 timer/interrupt code.
		Some other minor updates.
20050413	NetBSD/cobalt runs from a disk image :-) including userland;
		updating the documentation on how to install NetBSD/cobalt
		using NetBSD/pmax (!).
		Some minor bintrans updates (no real speed improvement) and
		other minor updates (playstation2 now uses the -o options).
20050414	Adding a dummy x86 (and AMD64) mode.
20050415	Adding some (32-bit and 16-bit) x86 instructions.
		Adding some initial support for non-SCSI, non-IDE floppy
		images. (The x86 mode can boot from these, more or less.)
		Moving the devices/ and include/ directories to src/devices/
		and src/include/, respectively.
20050416	Continuing on the x86 stuff. (Adding pc_bios.c and some simple
		support for software interrupts in 16-bit mode.)
20050417	Ripping out most of the x86 instruction decoding stuff, trying
		to rewrite it in a cleaner way.
		Disabling some of the least working CPU families in the
		configure script (sparc, x86, alpha, hppa), so that they are
		not enabled by default.
20050418	Trying to fix the bug which caused problems when turning on
		and off bintrans interactively, by flushing the bintrans cache
		whenever bintrans is manually (re)enabled.
20050419	Adding the 'lswi' ppc instruction.
		Minor updates to the x86 instruction decoding.
20050420	Renaming x86 register name indices from R_xx to X86_R_xx (this
		makes building on Tru64 nicer).
20050422	Adding a check for duplicate MIPS TLB entries on tlbwr/tlbwi.
20050427	Adding screenshots to guestoses.html.
		Some minor fixes and testing for the next release.

==============  RELEASE 0.3.2  ==============
1 dpavlin 4 /*
2     * Copyright (C) 2003-2005 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_ps2_gif.c,v 1.28 2005/04/09 13:33:36 debug Exp $
29     *
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     int dev_ps2_gif_access(struct cpu *cpu, struct memory *mem,
211     uint64_t relative_addr, unsigned char *data, size_t len,
212     int writeflag, void *extra)
213     {
214     int i;
215     struct gif_data *d = extra;
216    
217     if (relative_addr + len > DEV_PS2_GIF_LENGTH)
218     return 0;
219    
220     if (writeflag==MEM_READ) {
221     debug("[ gif read from addr 0x%x, len=%i ]\n",
222     (int)relative_addr, (int)len);
223     } else {
224     if (data[0] == 0x08 && data[1] == 0x80) {
225     /* Possibly "initialize 640x480 mode": */
226     debug("[ gif: initialize video mode (?) ]\n");
227     } else if (data[0] == 0x04 && data[1] == 0x00 && len > 300) {
228     /* Possibly "output 8x16 character": */
229     int xbase, ybase, xsize, ysize, x, y;
230    
231     xbase = data[9*4 + 0] + (data[9*4 + 1] << 8);
232     ybase = data[9*4 + 2] + (data[9*4 + 3] << 8);
233    
234     xsize = data[12*4 + 0] + (data[12*4 + 1] << 8);
235     ysize = data[13*4 + 0] + (data[13*4 + 1] << 8);
236     ysize &= ~0xf; /* multple of 16 */
237    
238     /* debug("[ gif: putchar at (%i,%i), size (%i,%i) "
239     "]\n", xbase, ybase, xsize, ysize); */
240    
241     /*
242     * NetBSD and Linux:
243     *
244     * [ gif write to addr 0x0 (len=608):
245     * 04 00 00 00 00 00 00 10, 0e 00 00 00 00 00 00 00, 00 00 00 00 00 00 0a 00, 50 00 00 00 00 00 00 00,
246     * 00 00 00 00 00 00 00 00, 51 00 00 00 00 00 00 00, 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, 20 80 00 00 00 00 00 08, 00 00 00 00 00 00 00 00,
248     * 00 00 aa 80 00 00 aa 80, 00 00 aa 80 00 00 aa 80, 00 00 aa 80 00 00 aa 80, 00 00 aa 80 00 00 aa 80,
249     * aa aa 00 80 aa aa 00 80, 00 00 aa 80 00 00 aa 80, 00 00 aa 80 00 00 aa 80, 00 00 aa 80 00 00 aa 80,
250     */
251    
252     /*
253     fatal("[ gif write to addr 0x%x (len=%i):",
254     (int)relative_addr, (int)len);
255     for (i=0; i<len; i++) {
256     fatal(" %02x", data[i]);
257     if ((i & 7) == 7)
258     fatal(",");
259     if ((i & 31) == 31)
260     fatal("\n");
261     }
262     fatal(" ]\n");
263     */
264    
265     for (y=0; y<ysize; y++) {
266     int fb_addr = (xbase + (ybase+y) * d->xsize)
267     * d->bytes_per_pixel;
268     int addr = (24 + y*xsize) * 4;
269     for (x=0; x<xsize; x++) {
270     /* There are three bytes (r,g,b) at data[addr + 0] .. [addr + 2].
271     TODO: This should be translated to a direct update of the framebuffer. */
272    
273     dev_fb_access(d->cpu, d->cpu->mem,
274     fb_addr, data + addr, 3, MEM_WRITE, d->vfb_data);
275    
276     fb_addr += d->bytes_per_pixel;
277     addr += 4;
278     }
279     }
280     } else if (data[0] == 0x04 && data[1] == 0x80 && len == 0x50) { /* blockcopy */
281     int y_source, y_dest, x_source, x_dest, x_size, y_size;
282     x_source = data[8*4 + 0] + ((data[8*4 + 1]) << 8);
283     y_source = data[8*4 + 2] + ((data[8*4 + 3]) << 8);
284     x_dest = data[9*4 + 0] + ((data[9*4 + 1]) << 8);
285     y_dest = data[9*4 + 2] + ((data[9*4 + 3]) << 8);
286     x_size = data[12*4 + 0] + ((data[12*4 + 1]) << 8);
287     y_size = data[13*4 + 0] + ((data[13*4 + 1]) << 8);
288    
289     /* debug("[ gif: blockcopy (%i,%i) -> (%i,%i), size=(%i,%i) ]\n",
290     x_source,y_source, x_dest,y_dest, x_size,y_size); */
291    
292     framebuffer_blockcopyfill(d->vfb_data, 0, 0,0,0, x_dest,y_dest,
293     x_dest + x_size - 1, y_dest + y_size - 1, x_source, y_source);
294     } else if (data[8] == 0x10 && data[9] == 0x55 && len == 48) { /* Linux "clear": */
295     /* This is used by linux to clear the lowest 16 pixels of the framebuffer. */
296     int xbase, ybase, xend, yend;
297    
298     xbase = (data[8*4 + 0] + (data[8*4 + 1] << 8)) / 16;
299     ybase = (data[8*4 + 2] + (data[8*4 + 3] << 8)) / 16;
300     xend = (data[8*5 + 0] + (data[8*5 + 1] << 8)) / 16;
301     yend = (data[8*5 + 2] + (data[8*5 + 3] << 8)) / 16;
302    
303     /* debug("[ gif: linux \"clear\" (%i,%i)-(%i,%i) ]\n", xbase,ybase, xend,yend); */
304    
305     framebuffer_blockcopyfill(d->vfb_data, 1, 0,0,0, xbase,ybase, xend-1,yend-1, 0,0);
306     } else if (data[0] == 0x07 && data[1] == 0x80 && len == 128) { /* NetBSD "output cursor": */
307     int xbase, ybase, xend, yend, x, y;
308    
309     xbase = (data[20*4 + 0] + (data[20*4 + 1] << 8)) / 16;
310     ybase = (data[20*4 + 2] + (data[20*4 + 3] << 8)) / 16;
311     xend = (data[28*4 + 0] + (data[28*4 + 1] << 8)) / 16;
312     yend = (data[28*4 + 2] + (data[28*4 + 3] << 8)) / 16;
313    
314     /* debug("[ gif: NETBSD cursor at (%i,%i)-(%i,%i) ]\n", xbase, ybase, xend, yend); */
315    
316     /* Output the cursor to framebuffer memory: */
317    
318     for (y=ybase; y<=yend; y++)
319     for (x=xbase; x<=xend; x++) {
320     int fb_addr = (x + y * d->xsize) * d->bytes_per_pixel;
321     unsigned char pixels[3];
322    
323     dev_fb_access(d->cpu, d->cpu->mem,
324     fb_addr, pixels, sizeof(pixels),
325     MEM_READ, d->vfb_data);
326    
327     pixels[0] = 0xff - pixels[0];
328     pixels[1] = 0xff - pixels[1];
329     pixels[2] = 0xff - pixels[2];
330    
331     dev_fb_access(d->cpu, d->cpu->mem,
332     fb_addr, pixels, sizeof(pixels),
333     MEM_WRITE, d->vfb_data);
334     }
335     } else if (data[0] == 0x01 && data[1] == 0x00 && len == 80) { /* Linux "output cursor": */
336     int xbase, ybase, xend, yend, x, y;
337    
338     xbase = (data[7*8 + 0] + (data[7*8 + 1] << 8)) / 16;
339     ybase = (data[7*8 + 2] + (data[7*8 + 3] << 8)) / 16;
340     xend = (data[8*8 + 0] + (data[8*8 + 1] << 8)) / 16;
341     yend = (data[8*8 + 2] + (data[8*8 + 3] << 8)) / 16;
342    
343     debug("[ gif: LINUX cursor at (%i,%i)-(%i,%i) ]\n", xbase, ybase, xend, yend);
344    
345     /* Output the cursor to framebuffer memory: */
346    
347     for (y=ybase; y<=yend; y++)
348     for (x=xbase; x<=xend; x++) {
349     int fb_addr = (x + y * d->xsize) * d->bytes_per_pixel;
350     unsigned char pixels[3];
351    
352     dev_fb_access(d->cpu, d->cpu->mem,
353     fb_addr, pixels, sizeof(pixels),
354     MEM_READ, d->vfb_data);
355    
356     pixels[0] = 0xff - pixels[0];
357     pixels[1] = 0xff - pixels[1];
358     pixels[2] = 0xff - pixels[2];
359    
360     dev_fb_access(d->cpu, d->cpu->mem,
361     fb_addr, pixels, sizeof(pixels),
362     MEM_WRITE, d->vfb_data);
363     }
364     } else { /* Unknown command: */
365     fatal("[ gif write to addr 0x%x (len=%i):", (int)relative_addr, len);
366     for (i=0; i<len; i++)
367     fatal(" %02x", data[i]);
368     fatal(" ]\n");
369     /* fatal("Unknown gif command.\n");
370     cpu->running = 0;
371     */ }
372     }
373    
374     return 1;
375     }
376    
377    
378     /*
379     * devinit_ps2_gif():
380     *
381     * Attached to separate memory by devinit_ps2_gs().
382     */
383     int devinit_ps2_gif(struct devinit *devinit)
384     {
385     struct gif_data *d;
386    
387     d = malloc(sizeof(struct gif_data));
388     if (d == NULL) {
389     fprintf(stderr, "out of memory\n");
390     exit(1);
391     }
392     memset(d, 0, sizeof(struct gif_data));
393    
394     d->transparent_text = 0;
395     d->cpu = devinit->machine->cpus[0]; /* TODO */
396     d->xsize = 640; d->ysize = 480;
397     d->bytes_per_pixel = 3;
398    
399     d->vfb_data = dev_fb_init(devinit->machine, devinit->machine->memory,
400     PS2_FB_ADDR, VFB_PLAYSTATION2,
401     d->xsize, d->ysize, d->xsize, d->ysize, 24, "Playstation 2", 0);
402     if (d->vfb_data == NULL) {
403     fprintf(stderr, "could not initialize fb, out of memory\n");
404     exit(1);
405     }
406    
407     #if 0
408     test_triangle(d, 300,50, 255,0,0, 50,150, 0,255,0, 600,400, 0,0,255);
409     test_triangle(d, 310,210, 128,32,0, 175,410, 0,32,0, 500,470, 125,255,125);
410     test_triangle(d, 100,450, 255,255,0, 250,370, 0,255,255, 400,470, 255,0,255);
411     #endif
412    
413     memory_device_register(devinit->machine->memory, devinit->name,
414     devinit->addr, DEV_PS2_GIF_LENGTH, dev_ps2_gif_access, d,
415     MEM_DEFAULT, NULL);
416    
417     return 1;
418     }
419    
  ViewVC Help
Powered by ViewVC 1.1.26