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move color encoding functions to GVMEncoder header

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This commit is contained in:
Martin Michelsen
2023-11-16 21:01:06 -08:00
parent 4a5ea63f4a
commit db6578d57c
3 changed files with 40 additions and 22 deletions
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src/GVMEncoder.cc
-16
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@@ -8,22 +8,6 @@
using namespace std;
static uint16_t encode_rgb565(uint8_t r, uint8_t g, uint8_t b) {
return ((r << 8) & 0xF800) | ((g << 3) & 0x07E0) | ((b >> 3) & 0x001F);
}
static uint16_t encode_rgb5a3(uint8_t r, uint8_t g, uint8_t b, uint8_t a) {
if ((a & 0xE0) == 0xE0) {
return 0x8000 | ((r << 7) & 0x7C00) | ((g << 2) & 0x03E0) | ((b >> 3) & 0x001F);
} else {
return ((a << 7) & 0x7000) | ((r << 4) & 0x0F00) | (g & 0x00F0) | ((b >> 4) & 0x000F);
}
}
static uint32_t encode_argb8888(uint8_t r, uint8_t g, uint8_t b, uint8_t a) {
return (a << 24) | (r << 16) | (g << 8) | b;
}
struct GVMFileEntry {
be_uint16_t file_num;
pstring<TextEncoding::ASCII, 0x1C> name;