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Changed asset file rgb format to RGB565 and only F81F as the tranparent color. And corrected offsets.

This commit is contained in:
Ulysse Cura 2026-07-22 02:51:33 +02:00
parent 063235cf6a
commit c730276f82
2 changed files with 17 additions and 12 deletions
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27
assets/asset_builder/src/asset_file.c
View File

@ -134,7 +134,7 @@ int parse_png_for_header(const char *file_name, asset_header_def_t *asset_header
// Fill asset def.
asset_header_def->start = 0;
asset_header_def->end = height * width * 3;
asset_header_def->end = height * width * sizeof(uint16_t) + sizeof(size_t) * 2;
png_destroy_read_struct(&png_ptr, &info_ptr, NULL);
fclose(input_file);
@ -216,28 +216,33 @@ int parse_png_for_content(const char *input_file_name, FILE *output_file)
{
for(size_t j = 0; j < row_length; j += 4)
{
if(pixels[i * row_length + j + 3] < 128)
uint8_t r, g, b;
if(pixels[i * row_length + j + 3])
{
pixels[i * row_length + j] = 0xFF;
pixels[i * row_length + j + 1] = 0x00;
pixels[i * row_length + j + 2] = 0xFF;
r = pixels[i * row_length + j] >> 3;
g = pixels[i * row_length + j + 1] >> 2;
b = pixels[i * row_length + j + 2] >> 3;
}
else if(pixels[i * row_length + j + 3] < 255)
else
{
pixels[i * row_length + j] = 0x80;
pixels[i * row_length + j + 1] = 0x00;
pixels[i * row_length + j + 2] = 0x80;
r = 0x1F;
g = 0x00;
b = 0x1F;
}
uint16_t pixel = ((r) << 11) | ((g) << 6) | b;
ret = fwrite(&pixels[i * row_length + j], sizeof(png_byte), 3, output_file);
if(ret != 3)
// printf("\033[48;2;%d;%d;%dm ", r << 3, g << 2, b << 3);
if(fwrite(&pixel, sizeof(uint16_t), 1, output_file) != 1)
{
png_destroy_read_struct(&png_ptr, &info_ptr, NULL);
fclose(input_file);
return WRITE_FAILED;
}
}
// puts("\033[m");
}
png_destroy_read_struct(&png_ptr, &info_ptr, NULL);

2
assets/asset_builder/src/main.c
View File

@ -86,7 +86,7 @@ int main(int argc, char *argv[])
}
// Calculate absolute position of assets in the file.
if(i) asset_file_header.assets_header_def[i].start = asset_file_header.assets_header_def[i - 1].end + 1;
if(i) asset_file_header.assets_header_def[i].start = asset_file_header.assets_header_def[i - 1].end;
else asset_file_header.assets_header_def[0].start = asset_file_header.header_size;
asset_file_header.assets_header_def[i].end += asset_file_header.assets_header_def[i].start;
}