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Faster osm (#2874)

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Much faster OSM map handler
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Totoo 2025-11-21 09:30:01 +01:00 • committed by GitHub
parent c01597baf2
commit 6b02ba6e5d
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GPG key ID: B5690EEEBB952194
7 changed files with 128 additions and 15 deletions
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49
firmware/standalone/common/ui/bmpfile.cpp
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@ -173,7 +173,7 @@ bool BMPFile::read_next_px(ui::Color& px, bool seek = true) {
//*a = (val >> 15) & 0x01; // 1-bit alpha
uint8_t r = (val >> 10) & 0x1F; // 5-bit red
uint8_t g = (val >> 5) & 0x1F; // 5-bit green
uint8_t b = (val)&0x1F; // 5-bit blue
uint8_t b = (val) & 0x1F; // 5-bit blue
// expand
r = (r << 3) | (r >> 2);
g = (g << 3) | (g >> 2);
@ -200,6 +200,53 @@ bool BMPFile::read_next_px(ui::Color& px, bool seek = true) {
return true;
}
bool BMPFile::read_next_px_cnt(ui::Color* px, uint32_t count, bool seek) {
if (!is_opened) return false;
size_t bytesneeded = byte_per_px * count;
while (bytesneeded > 0) { // read in batches
size_t currusedbytes = bytesneeded > 256 ? 85 * byte_per_px : bytesneeded; // don't mind this magic number.
uint8_t buffer[currusedbytes];
auto res = bmpimage.read(buffer, currusedbytes);
if (res.is_error()) return false;
for (uint32_t i = 0; i < currusedbytes; i += byte_per_px, px++) {
switch (type) {
case 5: {
// ARGB1555
uint16_t val = buffer[i] | (buffer[i + 1] << 8);
// Extract components
//*a = (val >> 15) & 0x01; // 1-bit alpha
uint8_t r = (val >> 10) & 0x1F; // 5-bit red
uint8_t g = (val >> 5) & 0x1F; // 5-bit green
uint8_t b = (val) & 0x1F; // 5-bit blue
// expand
r = (r << 3) | (r >> 2);
g = (g << 3) | (g >> 2);
b = (b << 3) | (b >> 2);
*px = ui::Color(r, g, b);
break;
}
case 2: // 32
*px = ui::Color(buffer[i + 2], buffer[i + 1], buffer[i]);
break;
case 4: { // 8-bit
// uint8_t index = buffer[0];
// px = ui::Color(color_palette[index][2], color_palette[index][1], color_palette[index][0]); // Palette is BGR
// px = ui::Color(buffer[0]); // niy, since needs a lot of ram for the palette
break;
}
case 1: // 24
default:
*px = ui::Color(buffer[i + 2], buffer[i + 1], buffer[i]);
break;
}
}
bytesneeded -= currusedbytes;
}
if (seek) advance_curr_px(count);
return true;
}
// if you set this, then the expanded part (or the newly created) will be filled with this color. but the expansion or the creation will be slower.
void BMPFile::set_bg_color(ui::Color background) {
bg = background;