From 1b06741be4381366e2a0712171a341476db4823e Mon Sep 17 00:00:00 2001
From: _ <_>
Date: Thu, 5 Apr 2018 01:10:52 -0700
Subject: [PATCH] Implemented texture unpacking - needs testing

---
 test/main.c | 44 +++++++++++++++++++++++++++++++++++---------
 1 file changed, 35 insertions(+), 9 deletions(-)

diff --git a/test/main.c b/test/main.c
index b86d540..2e0f017 100644
--- a/test/main.c
+++ b/test/main.c
@@ -108,14 +108,31 @@ bool unpackpld (const char *filedata,
     strcat(fmt, "%d.dds");
 } */
 
+void write(const char *filename, 
+           unsigned int id, 
+           struct Texture *t, 
+           unsigned int size) {
+    if (filename == NULL) {
+        return;
+    }
+    unsigned int written = 0;
+    FILE *out = fopen(filename, "wb");
+    if (out != NULL) {
+        written = fwrite(t, sizeof(unsigned char), size, out);
+        fclose(out);
+        if (written == 0) {
+            perror("texture write error");
+        }
+    }
+}
+
 void unpacktextures(const char *filedata, 
-                    unsigned int filesize) {
+                    unsigned int filesize,
+                    const char *filename) {
     struct TexturePack *tp        = (struct TexturePack*)filedata;
-
-    struct TextureBatch **batches = NULL;
-    batches   = (struct TextureBatch**)malloc(tp -> batchNumber);
-
+    struct TextureBatch **batches             = NULL;
     struct TextureBatchDescriptor **descripts = NULL;
+    batches   = (struct TextureBatch**)malloc(tp -> batchNumber);
     descripts = (struct TextureBatchDescriptor**)malloc(tp -> batchNumber);
     gettbd(descripts, filedata, filesize);
     // array of pointers - texture data exists in memory in filedata.
@@ -124,9 +141,19 @@ void unpacktextures(const char *filedata,
                                                 filedata, 
                                                 filesize);
     struct Texture **textures = NULL;
-    textures = (struct Texture**)malloc(
-                    sizeof(struct Texture**) * texturecount);    
+    textures = (struct Texture**)
+                    malloc(sizeof(struct Texture**) * texturecount);    
     gettextures(textures, tp, batches, descripts);
+    // add 3 to buffer for digits, & 4 for file extension
+    char *fmt = (char*)malloc(strlen(filename) + 3 + 4);
+    unsigned int texsize = 0;
+    unsigned int i;
+    for (i = 0; i < texturecount; i++) {
+        texsize = descripts[i/(tp -> batchNumber)] -> textureSize;
+        sprintf(fmt, "test_%d.dds", i);
+        write(fmt, i, textures[i], texsize);
+    }
+    free(fmt);
     free(textures);
     free(descripts);
     free(batches);
@@ -137,8 +164,7 @@ int main(int argc, char ** argv) {
     unsigned int bufsize = 0;
     char *buffer         = loadfile(f, &bufsize);
 //    unpackpld(buffer, bufsize, f);
-//    unpacktextures(buffer, bufsize);
-    unpacktextures(buffer, bufsize);
+    unpacktextures(buffer, bufsize, f);
     free(buffer);
     return 0;
 }