mirror of
https://github.com/DarkStore-3DS/Universal-Core.git
synced 2026-07-03 00:39:23 +00:00
Add spritesheet and change image format
This commit is contained in:
Pk11
+132
-103
@@ -27,10 +27,37 @@
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#include "image.hpp"
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#include "screenCommon.hpp"
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#include "tonccpy.h"
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Image::Image(const std::vector<std::string> &paths) {
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#include <nds/bios.h>
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void Image::decompressGrf(void *dst, const void *src) {
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if(!src || !dst)
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return;
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u32 header = *(u32*)src;
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u32 size = header >> 8;
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switch(header & 0xF0) {
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case 0x00: // No compression
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tonccpy(dst, (u8*)src + 4, size);
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break;
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case 0x10: // LZ77
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decompress(src, dst, LZ77);
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break;
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case 0x20: // Huffman
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decompress(src, dst, HUFF);
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break;
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case 0x30: // RLE
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decompress(src, dst, RLE);
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break;
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default:
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break;
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}
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}
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Image::Image(const std::vector<std::string> &paths, u8 paletteStart) {
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// Attempt to load from the given paths
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FILE *file = nullptr;
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for(const auto &path : paths) {
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@@ -43,136 +70,138 @@ Image::Image(const std::vector<std::string> &paths) {
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if(!file)
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return;
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// Return if not in the correct format
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char magic[5] = {0};
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fread(magic, 1, 4, file);
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if(strcmp(magic, ".GFX"))
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return;
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fseek(file, 0, SEEK_END);
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long size = ftell(file);
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fseek(file, 0, SEEK_SET);
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// Read image
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fread(&_width, 1, 2, file);
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fread(&_height, 1, 2, file);
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_bitmap = std::vector<u8>(_width * _height);
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fread(_bitmap.data(), 1, _bitmap.size(), file);
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u16 palCount;
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fread(&palCount, 1, 2, file);
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fread(&_palOfs, 1, 2, file);
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_palette = std::vector<u16>(palCount);
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fread(_palette.data(), 2, palCount, file);
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fclose(file);
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}
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u8 *grf = new u8[size];
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if(grf) {
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fread(grf, 1, size, file);
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Image::Image(FILE *file) {
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// Return if no file
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if(!file)
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return;
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load(grf, paletteStart);
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// Return if not in the correct format
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char magic[5];
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fread(magic, 1, 4, file);
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if(strcmp(magic, ".GFX"))
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return;
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// Read image
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fread(&_width, 1, 2, file);
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fread(&_height, 1, 2, file);
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_bitmap = std::vector<u8>(_width * _height);
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fread(_bitmap.data(), 1, _bitmap.size(), file);
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u16 palCount;
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fread(&palCount, 1, 2, file);
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fread(&_palOfs, 1, 2, file);
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_palette = std::vector<u16>(palCount);
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fread(_palette.data(), 2, palCount, file);
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fclose(file);
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}
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void Image::draw(int x, int y, bool copyPal) {
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SCALE_3DS(x);
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SCALE_3DS(y);
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if(copyPal)
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tonccpy((currentScreen ? BG_PALETTE : BG_PALETTE_SUB) + _palOfs, _palette.data(), _palette.size() * 2);
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u8 *dst = (u8 *)bgGetGfxPtr(currentScreen ? 3 : 7) + y * 256 + x;
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// If full width and X is 0, copy it all in one go
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if(_width == 256 && x == 0) {
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tonccpy(dst, _bitmap.data(), _width * _height);
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} else {
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for(int i = 0; i < _height; i++) {
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tonccpy(dst + i * 256, _bitmap.data() + i * _width, _width);
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}
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delete[] grf;
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}
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}
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void Image::drawSpecial(int x, int y, float scaleX, float scaleY, int paletteOffset,
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bool copyPal) {
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Image::Image(const u8 *grf, u8 paletteStart) {
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load(grf, paletteStart);
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}
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void Image::load(const u8 *grf, u8 paletteStart) {
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const u32 *ptr = (u32 *)grf;
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if(!ptr || ptr[0] != 0x46464952 || ptr[2] != 0x20465247) {
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return;
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}
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u32 size = ptr[1]; // RIFF size
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ptr += 3; // Skip to first section
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while((u8 *)ptr < grf + size) {
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switch(*ptr) {
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case 0x20524448: { // 'HDR '
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memcpy(&_width, ptr + 4, 4);
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memcpy(&_height, ptr + 5, 4);
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break;
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} case 0x20584647: { // 'GFX '
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_bitmap = std::vector<u8>(ptr[2] >> 8);
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decompressGrf(_bitmap.data(), ptr + 2);
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changePaletteStart(paletteStart);
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break;
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} case 0x204C4150: { // 'PAL '
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_palette = std::vector<u16>((ptr[2] >> 8) / 2);
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decompressGrf(_palette.data(), ptr + 2);
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break;
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} default: {
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// Not supported yet
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break;
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}
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}
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ptr += 2 + ptr[1] / 4;
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}
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}
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void Image::changePaletteStart(u8 paletteStart) {
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int moveBy = paletteStart - _paletteStart;
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if(moveBy != 0) {
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for(u8 &px : _bitmap) {
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px += moveBy;
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}
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_paletteStart = paletteStart;
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}
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}
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void Image::copyPalette(int paletteStart) {
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tonccpy((currentScreen ? BG_PALETTE : BG_PALETTE_SUB) + paletteStart, _palette.data(), _palette.size() * 2);
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}
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void Image::draw(int x, int y, float scaleX, float scaleY, bool skipAlpha) {
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SCALE_3DS(x);
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SCALE_3DS(y);
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if(copyPal)
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tonccpy((currentScreen ? BG_PALETTE : BG_PALETTE_SUB) + _palOfs + paletteOffset, _palette.data(), _palette.size() * 2);
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u8 *dst = (u8 *)bgGetGfxPtr(currentScreen ? 3 : 7) + y * 256 + x;
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char s[64];
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// _bitmap[0] = 39;
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snprintf(s, sizeof(s), "%lu, %lu, %u, %u, 0x%X", _width, _height, _bitmap.size(), _bitmap[0], 0);
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// If the scale is 1 use faster integer math
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if(scaleX == 1.0f && scaleY == 1.0f) {
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for(int i = 0; i < _height; i++) {
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for(int j = 0; j < _width; j++) {
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u8 px = _bitmap[i * _width + j];
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if(_palette[px - _palOfs] & 0x8000)
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toncset(dst + i * 256 + j, px + paletteOffset, 1);
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if(skipAlpha) {
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for(u32 i = 0; i < _height; i++) {
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u8 *src = _bitmap.data() + i * _width;
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u8 *dst = (u8 *)bgGetGfxPtr(currentScreen ? 3 : 7) + (y + i) * 256 + x;
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for(u32 j = 0; j < _width; j++) {
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if(_palette[src[j] - _paletteStart] != 0x7C1F)
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toncset(dst + j, src[j], 1);
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}
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}
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} else {
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u8 *dst = (u8 *)bgGetGfxPtr(currentScreen ? 3 : 7) + y * 256 + x;
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for(u32 i = 0; i < _height; i++) {
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tonccpy(dst + i * 256, _bitmap.data() + i * _width, _width);
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}
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}
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} else {
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for(int i = 0; i < _height * scaleY; i++) {
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for(int j = 0; j < _width * scaleX; j++) {
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for(u32 i = 0; i < _height * scaleY; i++) {
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u8 *dst = (u8 *)bgGetGfxPtr(currentScreen ? 3 : 7) + (y + i) * 256 + x;
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for(u32 j = 0; j < _width * scaleX; j++) {
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u8 px = _bitmap[int(i / scaleY) * _width + int(j / scaleX)];
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if(_palette[px - _palOfs] & 0x8000)
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toncset(dst + i * 256 + j, px + paletteOffset, 1);
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if(_palette[px - _paletteStart] != 0x7C1F || !skipAlpha)
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toncset(dst + j, px, 1);
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}
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}
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}
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}
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void Image::drawSegment(int x, int y, int imageX, int imageY, int w, int h, bool copyPal) {
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void Image::drawSegment(int x, int y, int imageX, int imageY, int w, int h, float scaleX, float scaleY, bool skipAlpha) {
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SCALE_3DS(x);
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SCALE_3DS(y);
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if(copyPal)
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tonccpy((currentScreen ? BG_PALETTE : BG_PALETTE_SUB) + _palOfs, _palette.data(), _palette.size() * 2);
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for(int i = 0; i < h; i++) {
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tonccpy((u8 *)bgGetGfxPtr(currentScreen ? 3 : 7) + (y + i) * 256 + x,
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_bitmap.data() + (imageY + i) * _width + imageX, w);
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}
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}
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void Image::drawSegmentSpecial(int x, int y, int imageX, int imageY, int w, int h, float scaleX,
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float scaleY, int paletteOffset, bool copyPal) {
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SCALE_3DS(x);
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SCALE_3DS(y);
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if(copyPal)
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tonccpy((currentScreen ? BG_PALETTE : BG_PALETTE_SUB) + _palOfs + paletteOffset, _palette.data(), _palette.size() * 2);
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u8 *dst = (u8 *)bgGetGfxPtr(currentScreen ? 3 : 7) + y * 256 + x;
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// If the scale is 1 use faster integer math
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if(scaleX == 1.0f && scaleY == 1.0f) {
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for(int i = 0; i < h; i++) {
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for(int j = 0; j < w; j++) {
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u8 px = _bitmap[i * _width + j];
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if(_palette[px - _palOfs] & 0x8000)
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toncset(dst + i * 256 + j, px + paletteOffset, 1);
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if(skipAlpha) {
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for(int i = 0; i < h; i++) {
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u8 *src = _bitmap.data() + i * _width;
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u8 *dst = (u8 *)bgGetGfxPtr(currentScreen ? 3 : 7) + (y + i) * 256 + x;
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for(int j = 0; j < w; j++) {
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if(_palette[src[j] - _paletteStart] != 0x7C1F)
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toncset(dst + j, src[j], 1);
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}
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}
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} else {
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for(int i = 0; i < h; i++) {
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tonccpy((u8 *)bgGetGfxPtr(currentScreen ? 3 : 7) + (y + i) * 256 + x,
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_bitmap.data() + (imageY + i) * _width + imageX, w);
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}
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}
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} else {
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for(int i = 0; i < h * scaleY; i++) {
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for(int j = 0; j < w * scaleX; j++) {
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for(u32 i = 0; i < h * scaleY; i++) {
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u8 *dst = (u8 *)bgGetGfxPtr(currentScreen ? 3 : 7) + (y + i) * 256 + x;
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for(u32 j = 0; j < w * scaleX; j++) {
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u8 px = _bitmap[(imageY + int(i / scaleY)) * _width + imageX + int(j / scaleX)];
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if(_palette[px - _palOfs] & 0x8000)
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toncset(dst + i * 256 + j, px + paletteOffset, 1);
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if(_palette[px - _paletteStart] != 0x7C1F || !skipAlpha)
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toncset(dst + j, px, 1);
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}
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}
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}
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