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testkit: video: Rearrange and extend test cards
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@keirf
keirf committed Nov 10, 2023
1 parent 5c24fc4 commit 0dc5b86
Showing 1 changed file with 110 additions and 44 deletions.
154 changes: 110 additions & 44 deletions testkit/video.c
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Original file line number Diff line number Diff line change
Expand Up @@ -184,14 +184,13 @@ static void checkerboard(bool_t alternating)
}
}

static void solidcolours(void)
static void uniform(int colour_index)
{
uint16_t *p, *bgp, *cop;
uint16_t *p, *cop;

const uint16_t colours[] = {
0x0f00, 0x00f0, 0x000f, 0x0fff, 0x0000,
0x0000, 0x0fff, 0x0f00, 0x00f0, 0x000f
};
int num = 0;

/* This test shows full-screen solid colours, for adjusting purity on CRT
* monitors and spotting dead pixels on LCDs. */
Expand All @@ -203,27 +202,16 @@ static void solidcolours(void)

/* Background colour. */
*p++ = 0x0180;
bgp = p;
*p++ = colours[num];
*p++ = colours[colour_index];

/* End of copper list. */
*p++ = 0xffff; *p++ = 0xfffe;

copperlist_set(cop);

while (!do_exit && (keycode_buffer != K_ESC)) {
wait_bos();

/* Any non-exiting key cycles to the next colour. */
if (keycode_buffer != 0 && keycode_buffer != K_ESC) {
num++;
if (num == ARRAY_SIZE(colours))
num = 0;
*bgp = colours[num];

keycode_buffer = 0;
}
}
/* Any key exits. */
while (!do_exit && (keycode_buffer == 0))
continue;
}

static void grid(bool_t crosshatch)
Expand Down Expand Up @@ -302,21 +290,33 @@ static void grid(bool_t crosshatch)
cust->dmacon = DMA_SETCLR | DMA_SPREN;
}

static void colourbars(bool_t fullrange)
/* This test shows full-screen EBU-style colour bars, for adjusting hue and
* checking colour rendition generally. */
static void ebu_bars(int index)
{
uint16_t *p, *cop;
uint16_t y, i;

const uint16_t bars75_colours[] = {
const uint16_t ebu_100_0_100_0[] = {
0x0fff, 0x0ff0, 0x00ff, 0x00f0, 0x0f0f, 0x0f00, 0x000f, 0x0000,
};
const uint16_t ebu_100_0_75_0[] = {
0x0fff, 0x0bb0, 0x00bb, 0x00b0, 0x0b0b, 0x0b00, 0x000b, 0x0000,
};
const uint16_t bars100_colours[] = {
0x0fff, 0x0ff0, 0x00ff, 0x00f0, 0x0f0f, 0x0f00, 0x000f, 0x0000,
const uint16_t ebu_75_0_75_0[] = {
0x0bbb, 0x0bb0, 0x00bb, 0x00b0, 0x0b0b, 0x0b00, 0x000b, 0x0000,
};
const uint16_t greyscale[] = {
0x0fff, 0x0ddd, 0x0bbb, 0x0999, 0x0777, 0x0555, 0x0333, 0x0111,
};
const uint16_t *colours = fullrange ? bars100_colours : bars75_colours;
const uint16_t *colours = NULL;

/* This test shows full-screen EBU-style colour bars, for adjusting hue and
* checking colour rendition generally. */
switch (index) {
case 0: colours = ebu_100_0_100_0; break;
case 1: colours = ebu_100_0_75_0; break;
case 2: colours = ebu_75_0_75_0; break;
case 3: colours = greyscale; break;
}

cop = p = allocmem(16384 /* plenty */);

Expand Down Expand Up @@ -354,6 +354,81 @@ static void colourbars(bool_t fullrange)
continue;
}

static void full_field_tests(void)
{
char s[80];
struct char_row r = { .s = s };
void *alloc_s;
uint8_t key = 0;

while (!do_exit) {

print_menu_nav_line();

r.x = 5;
r.y = 0;
sprintf(s, "-- Full-Field: Uniform & Bars --");
print_line(&r);

r.x = 3;
r.y = 2;
sprintf(s, "$1 Black$");
print_line(&r);
r.y++;
sprintf(s, "$2 White$");
print_line(&r);
r.y++;
sprintf(s, "$3 Red$");
print_line(&r);
r.y++;
sprintf(s, "$4 Green$");
print_line(&r);
r.y++;
sprintf(s, "$5 Blue$");
print_line(&r);
r.y += 2;
sprintf(s, "$6 EBU 100/0/100/0 Bars (100%% colour)$");
print_line(&r);
r.y++;
sprintf(s, "$7 EBU 100/0/75/0 Bars (75%% colour)$");
print_line(&r);
r.y++;
sprintf(s, "$8 EBU 75/0/75/0 Bars (75%% variant)$");
print_line(&r);
r.y++;
sprintf(s, "$9 Greyscale Bars$");
print_line(&r);

do {
while (!do_exit && !(key = keycode_buffer))
continue;
keycode_buffer = 0;
if (key == K_ESC)
break;
key -= K_F1;
} while (!do_exit && (key >= 9));

if (do_exit || (key == K_ESC))
break;

alloc_s = start_allocheap_arena();
clear_text_rows(0, 13);
switch (key) {
case 0 ... 4:
uniform(key);
break;
case 5 ... 8:
ebu_bars(key-5);
break;
}
clear_whole_screen();
keycode_buffer = 0;
copperlist_default();
end_allocheap_arena(alloc_s);

}
}

void videocheck(void)
{
char s[80];
Expand Down Expand Up @@ -383,19 +458,16 @@ void videocheck(void)

r.y += 2;

sprintf(s, "$6 Solid colours (purity)$ - any key switches colour");
print_line(&r);
r.y++;
sprintf(s, "$7 Dots (convergence)$");
sprintf(s, "Full-field tests (any key exits each test):");
print_line(&r);
r.y++;
sprintf(s, "$8 Crosshatch (linearity)$");
sprintf(s, "$4 Uniform & Bars$");
print_line(&r);
r.y++;
sprintf(s, "$9 75%% colour bars$");
sprintf(s, "$5 Dots (convergence)$");
print_line(&r);
r.y++;
sprintf(s, "$0 100%% colour bars$");
sprintf(s, "$6 Crosshatch (linearity)$");
print_line(&r);
r.y++;

Expand All @@ -408,7 +480,7 @@ void videocheck(void)
if (key == K_ESC)
do_exit = 1;
key -= K_F1;
} while (!do_exit && (key >= 10));
} while (!do_exit && (key >= 6));

if (do_exit)
break;
Expand All @@ -425,21 +497,15 @@ void videocheck(void)
case 2:
checkerboard(TRUE);
break;
case 5:
solidcolours();
case 3:
full_field_tests();
break;
case 6:
case 4:
grid(FALSE);
break;
case 7:
case 5:
grid(TRUE);
break;
case 8:
colourbars(FALSE);
break;
case 9:
colourbars(TRUE);
break;
}
clear_whole_screen();
keycode_buffer = 0;
Expand Down

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