From 2d7d2156ff289618df274fc671023c6fec48be0c Mon Sep 17 00:00:00 2001
From: JackCarterSmith <arechristopher1@gmail.com>
Date: Wed, 3 Jul 2019 01:02:50 +0200
Subject: [PATCH] Finished HMT_parser

---
 src/HMT_Parser.c | 48 +++++++++++++++++++++++++++++++++++++++++++++++-
 src/RS_images.c  | 31 +++++++++++++++++++++++++++++++
 src/RS_images.h  |  7 +++++++
 3 files changed, 85 insertions(+), 1 deletion(-)

diff --git a/src/HMT_Parser.c b/src/HMT_Parser.c
index 0e0466c..953f8aa 100644
--- a/src/HMT_Parser.c
+++ b/src/HMT_Parser.c
@@ -6,7 +6,7 @@ int parseHMTFile(FILE *hmt_src, HMT_FILE *dst) {
 
 	if (hmt_src == NULL) return -1;
 
-	fseek(hmt_src, 0, SEEK_SET);	//Rewind file at the start
+	rewind(hmt_src);	//Rewind file at the start
 	fread(&(dst->material_count), 4, 1, hmt_src);	// Extract first usefull datas
 	fread(&(dst->texture_offset), 4, 1, hmt_src);
 
@@ -48,6 +48,52 @@ int readMaterial(HMT_MATERIAL *mat, FILE *hmt_src) {
 
 int readTexture(HMT_TEXTURE *tex, FILE *hmt_src) {
 	int result = 0;
+	char u0,u1,bpp;
+	int color_rgba;
+	long pos;
+	RS_IMAGE_DESC desc;
+
+	fread(&(tex->data_offset), 4, 1, hmt_src);
+	fseek(hmt_src, 28, SEEK_CUR);				// Skip zeros area
+	fread(&(tex->palette_offset), 4, 1, hmt_src);
+	fread(&(tex->textureName_offset), 4, 1, hmt_src);
+	fread(&(tex->width), 2, 1, hmt_src);
+	fread(&(tex->height), 2, 1, hmt_src);
+
+	fread(&u0, 1, 1, hmt_src);
+	fread(&bpp, 1, 1, hmt_src);
+	fread(&(tex->image.type_), 1, 1, hmt_src);
+	fread(&u1, 1, 1, hmt_src);
+	fread(&color_rgba, 4, 1, hmt_src);
+
+	pos = ftell(hmt_src);
+	fseek(hmt_src, tex->textureName_offset, SEEK_SET);
+	fread(&(tex->name), 16, 1, hmt_src);
+	fseek(hmt_src, pos, SEEK_SET);
+
+	desc = getImageDescFromType(tex->image.type_);
+	tex->image.paletteEntries = desc.palette_enties;
+	tex->image.sampleBits = desc.sample_bits;
+	tex->image.width = tex->width;
+	tex->image.height = tex->height;
+
+	printf("Texture name: %s\n", tex->name);
+	printf("Size w: %ld	h: %ld\n", tex->width, tex->height);
+	printf("Texture subtype: %d\n", tex->image.type_);
+	printf("Palette offset: %d\n", tex->palette_offset);
+	printf("Data offset: %d\n", tex->data_offset);
+	printf("u0: %d	u1: %d\n", u0, u1);
+
+	if (tex->palette_offset > 0) {
+		printf("\nPalette entries: %d\n", tex->image.paletteEntries);
+		fseek(hmt_src, tex->palette_offset, SEEK_SET);
+		//loadPalette(&(tex->image), stream);
+	}
+	fseek(hmt_src, tex->data_offset, SEEK_SET);
+	//loadSamples(&(tex->image), stream);
+	//decodePixels(&(tex->image));
+
+	fseek(hmt_src, pos, SEEK_SET);
 
 	return result;
 }
diff --git a/src/RS_images.c b/src/RS_images.c
index e8fdbae..4812109 100644
--- a/src/RS_images.c
+++ b/src/RS_images.c
@@ -1,3 +1,34 @@
 #include "RS_images.h"
 
+RS_IMAGE_DESC getImageDescFromType(unsigned char type) {
+	RS_IMAGE_DESC desc;
 
+	switch(type) {
+	case 0:
+		desc.palette_enties = 16;
+		desc.sample_bits = 4;
+		break;
+	case 1:
+		desc.palette_enties = 256;
+		desc.sample_bits = 8;
+		break;
+	case 2:
+		desc.palette_enties = 0;
+		desc.sample_bits = 16;
+		break;
+	case 3:
+		desc.palette_enties = 0;
+		desc.sample_bits = 32;
+		break;
+	case 4:
+		desc.palette_enties = 0;
+		desc.sample_bits = 4;
+		break;
+	case 5:
+		desc.palette_enties = 0;
+		desc.sample_bits = 8;
+		break;
+	}
+
+	return desc;
+}
diff --git a/src/RS_images.h b/src/RS_images.h
index d28a8a6..ca12424 100644
--- a/src/RS_images.h
+++ b/src/RS_images.h
@@ -22,10 +22,17 @@ typedef struct RSImage {
 	unsigned char palette[256][3];		/**< Image palette definition */
 }RS_IMAGE;
 
+typedef struct RSImage_desc {
+	int palette_enties;
+	int sample_bits;
+	//char alpha;
+}RS_IMAGE_DESC;
+
 
 /////////////////////////////
 ///// Declare functions /////
 /////////////////////////////
+RS_IMAGE_DESC getImageDescFromType(unsigned char type);
 void Unpack4To8bit(unsigned char *src, unsigned char *dst, int sampling);
 void Unpack4bitTo24bitRGB(unsigned char *src, unsigned char *dst, int size, unsigned char pal[256][3]);
 void UseOddBytes(unsigned char *src, unsigned char *dst, int size);