9 #endif /* HAVE_LIBPNG */
11 #ifdef HAVE_LIBVNCSERVER
13 #include <rfb/keysym.h>
14 #endif /* HAVE_LIBVNCSERVER */
17 #include "chargen-4x8.h"
18 #include "hw_lem1802.h"
22 #define TRACE(...) do { printf("[debug] "); printf(__VA_ARGS__); printf("\n"); } while (0)
24 #define TRACE(...) do {} while (0)
27 static dcpu16_hw_signal_t lem1802_reset_
;
28 static dcpu16_hw_signal_t lem1802_cycle_
;
29 static dcpu16_hw_signal_t lem1802_hwi_
;
30 static struct dcpu16_hw hw_
= {
31 .name_
= "LEM1802 - Low Energy Monitor",
38 .cycle
= lem1802_cycle_
,
39 .reset
= lem1802_reset_
,
40 .data
= (struct lem1802_
*)NULL
43 #define PIX_X 160 /* pixels in display */
44 #define PIX_Y 128 /* pixels in display */
45 #define PIX_BORDER 16 /* border pixels from edge to first tile */
48 #define CELL_X ((PIX_X - (2 * PIX_BORDER)) / CELL_X_SZ) /* tiles in display */
49 #define CELL_Y ((PIX_Y - (2 * PIX_BORDER)) / CELL_Y_SZ) /* tiles in display */
51 #define PALETTE_ENTRIES 16
52 static const DCPU16_WORD palette_default_
[PALETTE_ENTRIES
] = {
60 0x0aaf, /* pale blue */
62 0x055f, /* light blue */
63 0x05f5, /* light green*/
64 0x05ff, /* light cyan */
65 0x0f55, /* light red */
66 0x0f5f, /* light magenta */
67 0x0ff5, /* light yellow */
79 long long cycle_activated
; /* for tracking 'turn on delay' */
81 DCPU16_WORD video_base
;
82 DCPU16_WORD font_base
;
83 DCPU16_WORD palette_base
;
84 DCPU16_WORD border_color
;
85 struct pixel_
*pixbuf
;
87 unsigned int refresh_rate
; /* redraw every n cycles */
88 unsigned int refresh_tally_
; /* tick */
90 unsigned int blink_rate
; /* toggle every n cycles? still figuring this out.. */
91 unsigned int blink_tally_
; /* tick */
92 unsigned int blink_state
;
94 int (*render
)(void *, struct pixel_
*, size_t, size_t);
99 void pixel_color_(struct pixel_
*pix
, DCPU16_WORD color
) {
102 x
= (color
>> 0) & 0x000f;
103 pix
->r
= x
| (x
<< 4);
105 x
= (color
>> 4) & 0x000f;
106 pix
->g
= x
| (x
<< 4);
108 x
= (color
>> 8) & 0x000f;
109 pix
->b
= x
| (x
<< 4);
111 x
= (color
>> 12) & 0x000f;
112 pix
->a
= x
| (x
<< 4);
116 void pixbuf_border_paint_(struct pixel_
*pixbuf
, struct pixel_
*border
) {
119 TRACE("%s>> painted border", __func__
);
122 for (y
= 0; y
< PIX_BORDER
; y
++) {
123 for (x
= 0; x
< PIX_X
; x
++) {
126 i
= ((PIX_Y
- y
) * PIX_X
) + x
;
132 for (y
= PIX_BORDER
; y
< (PIX_Y
- PIX_BORDER
+ 1); y
++)
133 for (x
= 0; x
< PIX_BORDER
; x
++) {
136 pixbuf
[i
+ (PIX_X
- PIX_BORDER
)] = *border
;
141 void font_tile_paint_(struct pixel_
*p
, struct pixel_
*fg
, struct pixel_
*bg
, DCPU16_WORD
*tile
) {
143 unsigned char *font_bitmap
= (unsigned char *)tile
;
145 TRACE("%s>> fg:(%u,%u,%u) bg:(%u,%u,%u) font_bitmap:%02x %02x %02x %02x", __func__
,
148 font_bitmap
[0], font_bitmap
[1], font_bitmap
[2], font_bitmap
[3]);
150 for (pix_x
= 0; pix_x
< CELL_X_SZ
; pix_x
++) {
151 for (pix_y
= 0; pix_y
< CELL_Y_SZ
; pix_y
++) {
152 if ((font_bitmap
[pix_x
] >> pix_y
) & 0x01)
153 p
[((CELL_Y_SZ
- pix_y
- 1) * PIX_X
) + pix_x
] = *fg
;
155 p
[((CELL_Y_SZ
- pix_y
- 1) * PIX_X
) + pix_x
] = *bg
;
161 void pixbuf_addr_paint_(struct pixel_
*pixbuf
, DCPU16_WORD
*mem
, DCPU16_WORD base
, DCPU16_WORD addr
, DCPU16_WORD
*palette
, DCPU16_WORD
*tiles
, unsigned int blink_state
) {
162 struct pixel_
*tilestart
= pixbuf
; /* start of display */
163 unsigned int cell_x
= addr
% (PIX_X
/ CELL_X_SZ
),
164 cell_y
= addr
/ (PIX_X
/ CELL_X_SZ
);
165 struct pixel_ fg
, bg
;
166 DCPU16_WORD
*font_bitmap
;
169 cell_x
= (addr
- base
) % CELL_X
;
170 cell_y
= (addr
- base
) / CELL_X
;
172 TRACE("%s>> addr:0x%04x col:%u row:%u v:%hu",
175 cell_x
, cell_y
, mem
[addr
]);
177 blink
= mem
[addr
] & 0x0080;
179 /* tiles take two words each */
180 font_bitmap
= tiles
+ (2 * (mem
[addr
] & 0x7f));
182 pixel_color_(&bg
, palette
[(mem
[addr
] >> 8) & 0x0f]);
183 if (blink
&& blink_state
)
184 pixel_color_(&fg
, palette
[(mem
[addr
] >> 8) & 0x0f]);
186 pixel_color_(&fg
, palette
[(mem
[addr
] >> 12) & 0x0f]);
188 tilestart
+= (PIX_X
* PIX_BORDER
); /* skip top border */
189 tilestart
+= (CELL_Y_SZ
* PIX_X
) * cell_y
; /* skip down to row */
191 tilestart
+= PIX_BORDER
; /* skip side border */
192 tilestart
+= (CELL_X_SZ
) * cell_x
; /* skip to column */
194 font_tile_paint_(tilestart
, &fg
, &bg
, font_bitmap
);
198 void lem1802_pixbuf_refresh_full_(struct lem1802_
*display
, DCPU16_WORD
*mem
) {
199 struct pixel_ border
;
202 TRACE("%s>> video_base:0x%04x", __func__
, display
->video_base
);
204 if (display
->video_base
== 0) {
205 /* disconnected, blank display. static might be fun, too */
206 memset(display
->pixbuf
, 0, PIX_X
* PIX_Y
* sizeof *display
->pixbuf
);
210 pixel_color_(&border
, display
->border_color
);
211 pixbuf_border_paint_(display
->pixbuf
, &border
);
213 for (tile
= 0; tile
< CELL_X
* CELL_Y
; tile
++) {
214 pixbuf_addr_paint_(display
->pixbuf
,
217 display
->video_base
+ tile
,
218 display
->palette_base
? mem
+ display
->palette_base
: palette_default_
,
219 display
->font_base
? mem
+ display
->font_base
: (unsigned short *)chargen_4x8_glyphs
,
220 display
->blink_state
);
225 int pixbuf_render_pnm_(void *data
, struct pixel_
*pixbuf
, size_t x
, size_t y
) {
226 FILE *f
= (FILE *)data
;
232 for (i
= 0; i
< x
* y
; i
++) {
233 fwrite(&pixbuf
[i
].r
, 1, 1, f
);
234 fwrite(&pixbuf
[i
].g
, 1, 1, f
);
235 fwrite(&pixbuf
[i
].b
, 1, 1, f
);
244 void pixbuf_render_png_user_warning_(png_structp png
, png_const_charp msg
) {
245 (void)png
, (void)msg
;
248 void pixbuf_render_png_user_error_(png_structp png
, png_const_charp msg
) {
249 (void)png
, (void)msg
;
252 int pixbuf_render_png_(void *data
, struct pixel_
*pixbuf
, size_t x
, size_t y
) {
253 FILE *f
= (FILE *)data
;
259 png
= png_create_write_struct(PNG_LIBPNG_VER_STRING
, NULL
, pixbuf_render_png_user_error_
, pixbuf_render_png_user_warning_
);
264 info
= png_create_info_struct(png
);
266 png_destroy_write_struct(&png
, (png_infopp
)NULL
);
270 if (setjmp(png_jmpbuf(png
))) {
271 png_destroy_write_struct(&png
, &info
);
276 png_set_IHDR(png
, info
, x
, y
, 8, PNG_COLOR_TYPE_RGB_ALPHA
, PNG_INTERLACE_NONE
, PNG_COMPRESSION_TYPE_DEFAULT
, PNG_FILTER_TYPE_DEFAULT
);
277 png_set_invert_alpha(png
);
278 png_write_info(png
, info
);
279 for (i
= 0; i
< y
; i
++) {
280 png_write_row(png
, (unsigned char *)(pixbuf
+ (i
* x
)));
282 png_write_end(png
, info
);
284 png_destroy_write_struct(&png
, &info
);
291 #endif /* HAVE_LIBPNG */
293 #ifdef HAVE_LIBVNCSERVER
295 rfbScreenInfoPtr rfbScreen
;
298 /* create and return a new struct vnc_server_, for use as a vnc renderer's generic data */
299 void *lem1802_vnc_init_data(int argc
, char *argv
[], struct dcpu16_hw
*hw
) {
300 struct vnc_server_
*s
;
301 struct pixel_
*pixbuf
= ((struct lem1802_
*)(hw
->data
))->pixbuf
;
302 int paddedWidth
= PIX_X
+ ( (PIX_X
& 3) ? (4 - (PIX_X
& 3)) : 0 );
304 int bitsPerSample
= 8;
305 int samplesPerPixel
= 3;
306 int bytesPerPixel
= 4;
308 s
= calloc(1, sizeof *s
);
312 s
->rfbScreen
= rfbGetScreen(&argc
, argv
, paddedWidth
, height
, bitsPerSample
, samplesPerPixel
, bytesPerPixel
);
313 if (s
->rfbScreen
== NULL
) {
318 s
->rfbScreen
->desktopName
= "NYA ELEKTRISKA LEM1802";
319 s
->rfbScreen
->alwaysShared
= TRUE
;
322 s
->rfbScreen
->kbdAddEvent
= HandleKey
; */
323 s
->rfbScreen
->httpDir
= "../classes";
326 s
->rfbScreen
->frameBuffer
= (char *)pixbuf
;
328 rfbInitServer(s
->rfbScreen
);
330 rfbRunEventLoop(s
->rfbScreen
,-1,TRUE
);
332 TRACE("%s>> initialized new vnc server", __func__
);
338 int pixbuf_render_vnc_(void *data
, struct pixel_
*pixbuf
, size_t x
, size_t y
) {
340 struct vnc_server_
*s
= (struct vnc_server_
*)data
;
345 rfbMarkRectAsModified(s
->rfbScreen
,0,0,x
,y
);
347 TRACE("%s>>", __func__
);
351 #endif /* HAVE_LIBVNCSERVER */
355 void lem1802_reset_(struct dcpu16
*vm
, void *data
) {
356 struct lem1802_
*display
= (struct lem1802_
*)data
;
360 display
->cycle_activated
= 0;
361 display
->video_base
= 0;
362 display
->font_base
= 0;
363 display
->palette_base
= 0;
364 display
->border_color
= 0;
366 memset(display
->pixbuf
, 0, PIX_X
* PIX_Y
* sizeof *display
->pixbuf
);
368 display
->refresh_tally_
= 0;
369 display
->blink_tally_
= 0;
370 display
->blink_state
= 0;
373 vm
->trace_cb_("%s>>", __func__
);
378 void lem1802_cycle_(struct dcpu16
*vm
, void *data
) {
379 struct lem1802_
*display
= (struct lem1802_
*)data
;
383 maybe just step through video memory (if set)
384 one word per clock..? could just cheat and
385 use accounting callbacks..
387 for now just count cycles and issue a full refresh/render
391 display
->blink_tally_
++;
392 if (display
->blink_tally_
>= display
->blink_rate
) {
393 display
->blink_tally_
= 0;
394 display
->blink_state
^= 1;
395 TRACE("%s>> blink:%u (%u cycles)", __func__
, display
->blink_state
, display
->blink_rate
);
398 display
->refresh_tally_
++;
399 if (display
->refresh_tally_
>= display
->refresh_rate
) {
400 display
->refresh_tally_
= 0;
402 TRACE("%s>> refresh", __func__
);
403 lem1802_pixbuf_refresh_full_(display
, vm
->ram
);
404 display
->render(display
->renderer_data
, display
->pixbuf
, PIX_X
, PIX_Y
);
409 void lem1802_hwi_(struct dcpu16
*vm
, void *data
) {
410 struct lem1802_
*display
= (struct lem1802_
*)data
;
411 DCPU16_WORD reg_a
= vm
->reg
[DCPU16_REG_A
];
412 DCPU16_WORD reg_b
= vm
->reg
[DCPU16_REG_B
];
415 TRACE("%s>> A:0x%04x B:0x%04x", __func__
, reg_a
, reg_b
);
418 case 0: /* MEM_MAP_SCREEN */
419 if (display
->cycle_activated
== 0 && reg_b
) {
420 display
->cycle_activated
= vm
->cycle
;
422 display
->video_base
= reg_b
;
424 display
->cycle_activated
= 0;
427 case 1: /* MEM_MAP_FONT */
428 display
->font_base
= reg_b
;
431 case 2: /* MEM_MAP_PALETTE */
432 display
->palette_base
= reg_b
;
435 case 3: /* SET_BORDER_COLOR */
436 display
->border_color
= reg_b
& 0x000f;
439 case 4: /* MEM_DUMP_FONT */
440 for (i
= 0; i
< 128 ; i
++) {
441 vm
->ram
[reg_b
] = chargen_4x8_glyphs
[reg_b
][0] << 8;
442 vm
->ram
[reg_b
] |= chargen_4x8_glyphs
[reg_b
][1];
444 vm
->ram
[reg_b
] = chargen_4x8_glyphs
[reg_b
][2] << 8;
445 vm
->ram
[reg_b
] |= chargen_4x8_glyphs
[reg_b
][3];
451 case 5: /* MEM_DUMP_PALETTE */
452 for (i
= 0; i
< 16; i
++) {
453 vm
->ram
[reg_b
] = palette_default_
[i
];
461 static struct renderer_
{
464 int (*renderer
)(void *, struct pixel_
*, size_t, size_t);
465 } lem1802_renderers_
[] = {
466 { "pnm", "filename", pixbuf_render_pnm_
},
468 { "png", "filename", pixbuf_render_png_
},
469 #endif /* HAVE_LIBPNG */
470 #ifdef HAVE_LIBVNCSERVER
471 { "vnc", "", pixbuf_render_vnc_
},
472 #endif /* HAVE_LIBVNCSERVER */
473 { "none", "", NULL
},
477 int lem1802_renderer_set(struct dcpu16_hw
*hw
, const char *renderer
, void *data
) {
480 for (r
= lem1802_renderers_
; r
->renderer
; r
++) {
481 if (strcmp(renderer
, r
->name
) == 0) {
482 ((struct lem1802_
*)(hw
->data
))->render
= r
->renderer
;
483 ((struct lem1802_
*)(hw
->data
))->renderer_data
= data
;
484 TRACE("%s>> renderer set to %s", __func__
, renderer
);
492 char *lem1802_renderers_iter(void **iterp
, char **name
, char **args
) {
493 struct renderer_
**r
= (struct renderer_
**)iterp
;
496 *r
= lem1802_renderers_
;
500 if ((*r
)->name
== NULL
) {
511 /* instantitate a new display */
512 struct dcpu16_hw
*lem1802_new(struct dcpu16
*vm
) {
513 struct dcpu16_hw
*hw
;
515 hw
= calloc(1, sizeof *hw
);
517 vm
->warn_cb_("%s():%s", "calloc", strerror(errno
));
521 memcpy(hw
, &hw_
, sizeof *hw
);
523 hw
->data
= calloc(1, sizeof(struct dcpu16_hw
));
524 if (hw
->data
== NULL
) {
525 vm
->warn_cb_("%s():%s", "calloc", strerror(errno
));
530 ((struct lem1802_
*)(hw
->data
))->pixbuf
= calloc(1, PIX_X
* PIX_Y
* sizeof *((struct lem1802_
*)(hw
->data
))->pixbuf
);
531 if (((struct lem1802_
*)(hw
->data
))->pixbuf
== NULL
) {
532 vm
->warn_cb_("%s():%s", "calloc", strerror(errno
));
538 ((struct lem1802_
*)(hw
->data
))->refresh_rate
= 1666;
539 ((struct lem1802_
*)(hw
->data
))->blink_rate
= 100000;
544 void lem1802_del(struct dcpu16_hw
**hw
) {
548 if (((struct lem1802_
*)(*hw
)->data
)->pixbuf
) {
549 free(((struct lem1802_
*)(*hw
)->data
)->pixbuf
);
550 ((struct lem1802_
*)(*hw
)->data
)->pixbuf
= NULL
;