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turned zarby 3bpp to 8bpp code into a routine

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This commit is contained in:
Justin Scofield
2022-06-17 23:46:18 -04:00
parent 320b1a5e8b
commit 192a05c041
2 changed files with 49 additions and 45 deletions
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91
src/application/Data/rom.cc
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@@ -116,51 +116,52 @@ uint32_t ROM::GetRomPosition(int direct_addr, uint snes_addr) const {
return filePos;
}
// unsigned char *sheetBuffer = (unsigned char *)malloc(0x1000);
// unsigned char bitmask[8] = {0x80, 0x40, 0x20, 0x10, 0x08, 0x04, 0x02, 0x01};
// void SNES3bppTo8bppSheet() // 128x32
// {
// char *buffer = new char[0x800];
// int xx = 0; // positions where we are at on the sheet
// int yy = 0;
// int pos = 0;
// int ypos = 0;
// for (int i = 0; i < 64; i++) // for each tiles //16 per lines
// {
// for (int y = 0; y < 8; y++) // for each lines
// {
// //[0] + [1] + [16]
// for (int x = 0; x < 8; x++) {
// unsigned char b1 =
// (unsigned char)((buffer[(y * 2) + (24 * pos)] & (bitmask[x])));
// unsigned char b2 =
// (unsigned char)(buffer[((y * 2) + (24 * pos)) + 1] &
// (bitmask[x]));
// unsigned char b3 =
// (unsigned char)(buffer[(16 + y) + (24 * pos)] & (bitmask[x]));
// unsigned char b = 0;
// if (b1 != 0) {
// b |= 1;
// };
// if (b2 != 0) {
// b |= 2;
// };
// if (b3 != 0) {
// b |= 4;
// };
// sheetBuffer[x + (xx) + (y * 128) + (yy * 1024)] = b;
// }
// }
// pos++;
// ypos++;
// xx += 8;
// if (ypos >= 16) {
// yy++;
// xx = 0;
// ypos = 0;
// }
// }
// }
// char *buffer = new char[0x800] AKA sheet_buffer_in 3bpp
uchar* ROM::SNES3bppTo8bppSheet(uchar *sheet_buffer_in) // 128x32
{
// 8bpp sheet out
uchar *sheet_buffer_out = (unsigned char *)malloc(0x1000);
int xx = 0; // positions where we are at on the sheet
int yy = 0;
int pos = 0;
int ypos = 0;
for (int i = 0; i < 64; i++) // for each tiles //16 per lines
{
for (int y = 0; y < 8; y++) // for each lines
{
//[0] + [1] + [16]
for (int x = 0; x < 8; x++) {
unsigned char b1 =
(unsigned char)((sheet_buffer_in[(y * 2) + (24 * pos)] & (bitmask[x])));
unsigned char b2 =
(unsigned char)(sheet_buffer_in[((y * 2) + (24 * pos)) + 1] &
(bitmask[x]));
unsigned char b3 =
(unsigned char)(sheet_buffer_in[(16 + y) + (24 * pos)] & (bitmask[x]));
unsigned char b = 0;
if (b1 != 0) {
b |= 1;
};
if (b2 != 0) {
b |= 2;
};
if (b3 != 0) {
b |= 4;
};
sheet_buffer_out[x + (xx) + (y * 128) + (yy * 1024)] = b;
}
}
pos++;
ypos++;
xx += 8;
if (ypos >= 16) {
yy++;
xx = 0;
ypos = 0;
}
}
return sheet_buffer_out;
}
char *ROM::Decompress(int pos, bool reversed) {
char *buffer = new char[0x800];