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PDP11, PDP1, TX-0: Added SDL based graphics support using sim_video.

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Both VT11 and VS60 properly autoconfigure on the PDP11.
PDP11 now runs Lunar Lander on all SDL supported platforms.
Reworked refresh logic to not require internal delays in the display library
This commit is contained in:
Mark Pizzolato
2016-01-29 10:16:30 -08:00
parent 51419a2e4b
commit b804964514
23 changed files with 839 additions and 220 deletions
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21
display/display.c
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@@ -589,12 +589,14 @@ display_age(int t, /* simulated us since last call */
{
struct point *p;
static int elapsed = 0;
static int refresh_elapsed = 0; /* in units of DELAY_UNIT bounded by refresh_interval */
int changed;
if (!initialized && !display_init(DISPLAY_TYPE, PIX_SCALE))
if (!initialized && !display_init(DISPLAY_TYPE, PIX_SCALE, NULL))
return 0;
display_delay(t, slowdown);
if (slowdown)
display_delay(t, slowdown);
changed = 0;
@@ -605,6 +607,12 @@ display_age(int t, /* simulated us since last call */
t = elapsed / DELAY_UNIT;
elapsed %= DELAY_UNIT;
++refresh_elapsed;
if (refresh_elapsed >= refresh_interval) {
display_sync ();
refresh_elapsed = 0;
}
while ((p = head->next) != head) {
int x, y;
@@ -717,7 +725,7 @@ display_point(int x, /* 0..xpixels (unscaled) */
{
long lx, ly;
if (!initialized && !display_init(DISPLAY_TYPE, PIX_SCALE))
if (!initialized && !display_init(DISPLAY_TYPE, PIX_SCALE, NULL))
return 0;
/* scale x and y to the displayed number of pixels */
@@ -828,7 +836,7 @@ find_type(enum display_type type)
}
int
display_init(enum display_type type, int sf)
display_init(enum display_type type, int sf, void *dptr)
{
static int init_failed = 0;
struct display *dp;
@@ -924,7 +932,7 @@ display_init(enum display_type type, int sf)
if (!points)
goto failed;
if (!ws_init(dp->name, xpixels, ypixels, ncolors))
if (!ws_init(dp->name, xpixels, ypixels, ncolors, dptr))
goto failed;
phosphor_init(dp->color0->phosphors, dp->color0->nphosphors, 0);
@@ -950,7 +958,8 @@ display_reset(void)
void
display_sync(void)
{
ws_sync();
ws_poll (NULL, 0);
ws_sync ();
}
void