drinkingtea/nostalgia
drinkingtea/nostalgia
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Start on support for 4 bpp images

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This may be all that's needed, but there seems to be another issue
causing the characters to look weird, though that's probably a
filesystem issue.
This commit is contained in:
Gary Talent 2017-05-05 18:54:13 -05:00
parent 411a3fe65d
commit 346b01be07
3 changed files with 29 additions and 8 deletions
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4
build_rom.sh
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@ -2,11 +2,11 @@
set -e
${DEVKITARM}/bin/padbin 32 build/gba-release/src/player/nostalgia.bin
echo NOSTALGIA_MEDIA_HEADER_________ > media_header.txt
oxfs format 32 1m nostalgia_media.oxfs
./build/current/src/tools/nost-pack -fs nostalgia_media.oxfs -img charset.png -inode 1 -tiles 40 -c
./build/current/src/tools/nost-pack -fs nostalgia_media.oxfs -img charset.png -inode 101 -tiles 40 -bpp 4 -c
${DEVKITARM}/bin/padbin 32 build/gba-release/src/player/nostalgia.bin
cat build/gba-release/src/player/nostalgia.bin media_header.txt nostalgia_media.oxfs > nostalgia.gba
${DEVKITARM}/bin/gbafix nostalgia.gba

15
src/core/gba/gfx.cpp
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@ -129,12 +129,19 @@ ox::Error initGfx() {
void initConsole() {
auto fs = (FileStore32*) findMedia();
GbaImageData imgData;
fs->read(101, __builtin_offsetof(GbaImageData, tileCount),
sizeof(imgData.tileCount) + sizeof(imgData.bpp),
&imgData.tileCount, nullptr);
REG_BG0CNT = (28 << 8) | 1;
REG_BG0CNT |= (1 << 7); // set to use 8 bits per pixel
if (imgData.bpp == 8) {
REG_BG0CNT |= (1 << 7); // set to use 8 bits per pixel
}
if (fs) {
FileStore32::FsSize_t readSize = 0;
fs->read(1, __builtin_offsetof(GbaImageData, tiles), 64 * 38, &TILE8_ADDR[0][1], nullptr);
fs->read(1, 0, 512, &MEM_PALLETE_BG[0], &readSize);
fs->read(101, __builtin_offsetof(GbaImageData, tiles), 64 * 38, &TILE8_ADDR[0][1], nullptr);
fs->read(101, __builtin_offsetof(GbaImageData, pal), 512, &MEM_PALLETE_BG[0], nullptr);
}
}

18
src/tools/pack.cpp
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@ -64,6 +64,7 @@ int run(ClArgs args) {
QString argFsPath = args.getString("fs").c_str();
auto argCompact = args.getBool("c");
auto argTiles = args.getInt("tiles");
auto argBpp = args.getInt("bpp");
QImage src(argInPath);
@ -71,13 +72,16 @@ int run(ClArgs args) {
if (argTiles == 0) {
argTiles = (src.width() * src.height()) / 64;
}
if (argBpp != 4 && argBpp != 8) {
argBpp = 8;
}
QMap<QRgb, int> colors;
const auto imgDataBuffSize = sizeof(GbaImageData) + 1 + argTiles * 64;
uint8_t imgDataBuff[imgDataBuffSize];
memset(&imgDataBuff, 0, imgDataBuffSize);
GbaImageData *id = (GbaImageData*) imgDataBuff;
id->bpp = 8;
id->bpp = argBpp;
id->tileCount = argTiles;
int colorId = 0;
@ -87,11 +91,21 @@ int run(ClArgs args) {
auto destI = pointToIdx(src.width(), x, y);
if (destI <= argTiles * 64) {
auto c = src.pixel(x, y);
// assign color a color id for the palette
if (!colors.contains(c)) {
colors[c] = colorId;
colorId++;
}
id->tiles[destI] = colors[c];
// set pixel color
if (argBpp == 4) {
if (destI % 2) { // is odd number pixel
id->tiles[destI / 2] |= colors[c] << 4;
} else {
id->tiles[destI / 2] |= colors[c];
}
} else {
id->tiles[destI] = colors[c];
}
}
}
}