Added ia1 conversion

2 files changed, 36 insertions, 3 deletions

diff --git a/src/factories/TextureFactory.cpp b/src/factories/TextureFactory.cpp
index c92c8a5..d929d7c 100644
--- a/src/factories/TextureFactory.cpp
+++ b/src/factories/TextureFactory.cpp
@@ -8,12 +8,36 @@ namespace fs = std::filesystem;
 static const std::unordered_map <std::string, TextureType> gTextureTypes = {
     { "RGBA16", TextureType::RGBA16bpp },
     { "RGBA32", TextureType::RGBA32bpp },
-    { "IA1", TextureType::GrayscaleAlpha4bpp },
+    { "IA1", TextureType::GrayscaleAlpha1bpp },
 	{ "IA4", TextureType::GrayscaleAlpha4bpp },
 	{ "IA8", TextureType::GrayscaleAlpha8bpp },
 	{ "IA16", TextureType::GrayscaleAlpha16bpp },
 };
 
+uint8_t* alloc_ia8_text_from_i1(uint16_t *in, int16_t width, int16_t height) {
+    int32_t inPos;
+    uint16_t bitMask;
+    int16_t outPos = 0;
+    uint8_t* out = new uint8_t[width * height];
+
+    for (inPos = 0; inPos < (width * height) / 16; inPos++) {
+        bitMask = 0x8000;
+
+        while (bitMask != 0) {
+            if (BSWAP16(in[inPos]) & bitMask) {
+                out[outPos] = 0xFF;
+            } else {
+                out[outPos] = 0x00;
+            }
+
+            bitMask /= 2;
+            outPos++;
+        }
+    }
+
+    return out;
+}
+
 bool TextureFactory::process(LUS::BinaryWriter* writer, YAML::Node& data, std::vector<uint8_t>& buffer) {
 
     auto format = data["format"].as<std::string>();
@@ -37,8 +61,16 @@ bool TextureFactory::process(LUS::BinaryWriter* writer, YAML::Node& data, std::v
     if(data["mio0"]){
         auto mio0 = data["mio0"].as<size_t>();
         auto decoded = MIO0Decoder::Decode(buffer, offset);
-        WRITE_U32(size);
-        WRITE_ARRAY(decoded.data() + mio0, size);
+        auto data = decoded.data() + mio0;
+        if(type == TextureType::GrayscaleAlpha1bpp){
+            auto ia8 = alloc_ia8_text_from_i1((uint16_t*)data, 8, 16);
+            WRITE_U32(8 * 16);
+            WRITE_ARRAY(ia8, 8 * 16);
+            delete[] ia8;
+        } else {
+            WRITE_U32(size);
+            WRITE_ARRAY(data, size);
+        }
     } else {
         WRITE_U32(size);
         WRITE_ARRAY(buffer.data() + offset, size);
diff --git a/src/factories/TextureFactory.h b/src/factories/TextureFactory.h
index c0349d6..e153e07 100644
--- a/src/factories/TextureFactory.h
+++ b/src/factories/TextureFactory.h
@@ -10,6 +10,7 @@ enum class TextureType {
     Palette8bpp,
     Grayscale4bpp,
     Grayscale8bpp,
+    GrayscaleAlpha1bpp,
     GrayscaleAlpha4bpp,
     GrayscaleAlpha8bpp,
     GrayscaleAlpha16bpp,