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add RLEVerticalExt (16 bit run length support)

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This commit is contained in:
Crispy 2025-06-16 23:46:01 +02:00
parent 90f648e0b0
commit 62ee8a6efa
8 changed files with 77689 additions and 106875 deletions
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1
pico_decoder/Makefile
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@ -1,6 +1,7 @@
build_thing:
cmake -B bin -DPICO_SDK_PATH=../../pico-sdk
# -DCMAKE_CXX_FLAGS=-Oz
make -j8 -C bin
# then manually copy bin/thing.uf2 to the pico

184253
pico_decoder/src/data.h
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File diff suppressed because it is too large Load diff

79
pico_decoder/src/main.c
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@ -75,21 +75,21 @@ void draw_num(u16 x, u16 y, u32 num) {
int main() {
gpio_init(PICO_DEFAULT_LED_PIN);
gpio_set_dir(PICO_DEFAULT_LED_PIN, GPIO_OUT);
gpio_put(PICO_DEFAULT_LED_PIN, 1);
tft_init_display(100 * 1000 * 1000); // max is 62.5MHz
// tft_fill(0);
while (!error) {
decode_next_frame();
draw_num(30,2, reader);
draw_num(15, 8, video[reader]);
refresh_screen();
sleep_ms(100);
// sleep_ms(100);
if (reader >= sizeof(video))
reader = 0;
error = true;
// reader = 0;
}
gpio_put(PICO_DEFAULT_LED_PIN, 1);
draw_num(30, 2, reader);
draw_num(15, 8, video[reader]);
draw_num(30, 2, reader-1);
draw_num(15, 8, video[reader-1]);
draw_num(30, 16, last_frame_start);
draw_num(15, 22, last_frame_type);
refresh_screen();
@ -106,7 +106,7 @@ void refresh_screen() {
DC_D;
u32 pixel_count = AREA;
const u8 pixels[2] = {0, 176};
const u8 pixels[2] = {0, 255};
while (pixel_count--) {
u8 p = pixels[frame[pixel_count]];
@ -135,14 +135,14 @@ void fill_frame(u8 color) {
void set_pixel(u16 x, u16 y, u8 color)
{
if (x >= WIDTH || y >= HEIGHT){
while (1){
gpio_put(PICO_DEFAULT_LED_PIN, 1);
sleep_ms(50);
gpio_put(PICO_DEFAULT_LED_PIN, 0);
sleep_ms(50);
}
}
// if (x >= WIDTH || y >= HEIGHT){
// while (1){
// gpio_put(PICO_DEFAULT_LED_PIN, 1);
// sleep_ms(50);
// gpio_put(PICO_DEFAULT_LED_PIN, 0);
// sleep_ms(50);
// }
// }
x = (WIDTH-1) - x;
const u32 index = x * HEIGHT + y;
frame[index] = color;
@ -150,6 +150,7 @@ void set_pixel(u16 x, u16 y, u8 color)
void rle_horizontal();
void rle_vertical();
void rle_vertical_ext();
void bg_strips_h();
void cell_diff_4vv();
@ -179,13 +180,18 @@ void decode_next_frame()
rle_vertical();
break;
#endif
#ifdef USE_RLEVerticalExt
case Encoding_RLEVerticalExt:
rle_vertical_ext();
break;
#endif
#ifdef USE_BGStripsH24
case Encoding_BGStripsH24:
bg_strips_h();
break;
#endif
#ifdef USE_CellDiff4VV_small
case Encoding_CellDiff4VV_small:
#ifdef USE_CellDiff4VV
case Encoding_CellDiff4VV:
cell_diff_4vv();
break;
#endif
@ -219,8 +225,7 @@ void rle_horizontal()
#endif
#ifdef USE_RLEVertical
void rle_vertical()
{
void rle_vertical() {
u16 x = 0;
u16 y = 0;
u8 color = 0;
@ -241,9 +246,39 @@ void rle_vertical()
}
#endif
#ifdef USE_RLEVerticalExt
void rle_vertical_ext() {
u16 x = 0;
u16 y = 0;
u8 color = 0;
while (x < WIDTH) {
u8 byte = next_byte();
u16 run = byte;
if (byte == 0 && video[reader] == 0) {
// 16 bit run length
u16 upper = video[reader + 1] << 8;
if (upper) {
u16 lower = video[reader + 2];
run = upper | lower;
reader += 3;
}
}
for (u16 i = 0; i < run; i++) {
set_pixel(x, y, color);
y += 1;
if (y == HEIGHT) {
y = 0;
x += 1;
}
}
color = !color;
}
}
#endif
#ifdef USE_BGStripsH24
void bg_strips_h()
{
void bg_strips_h() {
u8 head = next_byte();
u8 bg = head >> 7;
u8 fg = 1 - bg;
@ -262,7 +297,7 @@ void bg_strips_h()
}
#endif
#ifdef USE_CellDiff4VV_small
#ifdef USE_CellDiff4VV
void cell_diff_4vv() {
const u32 cells_x = WIDTH/4;
const u32 cells_y = HEIGHT/4;