Asset manager refactor begin.

archive/asset/asset.h

@@ -0,0 +1,118 @@
+/**
+ * Copyright (c) 2025 Dominic Masters
+ * 
+ * This software is released under the MIT License.
+ * https://opensource.org/licenses/MIT
+ */
+
+#pragma once
+#include "dusk.h"
+#include "assetpalette.h"
+#include "assettileset.h"
+#include "assetpalleteimage.h"
+#include "error/error.h"
+#include <zip.h>
+#include "display/texture/texture.h"
+
+#define ASSET_COUNT_MAX 128
+#define ASSET_FILENAME_MAX 128
+#define ASSET_HEADER_LENGTH 3
+
+#if ASSET_TYPE == wad
+#else
+  #error "Unsupported ASSET_TYPE"
+#endif
+
+#pragma pack(push, 1)
+typedef struct {
+  char_t header[ASSET_HEADER_LENGTH];
+  union {
+    assetpalette_t palette;
+    assettileset_t tileset;
+    assetpaletteimage_t paletteImage;
+  };
+} assetdata_t;
+#pragma pack(pop)
+
+typedef struct {
+  union {
+    texture_t palette;
+    assettileset_t *tileset;
+    texture_t paletteImage;
+  };
+} assetloaded_t;
+
+typedef enum {
+  ASSET_STATE_NONE,
+  ASSET_STATE_LOADING,
+  ASSET_STATE_LOADED,
+  ASSET_STATE_ERROR
+} assetstate_t;
+
+typedef struct {
+  int32_t nothing;
+  zip_t *zip;
+  // thread_t thread;
+
+  errorstate_t errorState;
+  errorret_t error;
+  assetstate_t state;
+  char_t filename[ASSET_FILENAME_MAX];
+  assetdata_t data;
+  assetloaded_t loaded;
+
+  void (*callback)(void* data);
+  void *callbackData;
+} asset_t;
+
+typedef struct {
+  const char_t *header;
+  const char_t *extension;
+  void (*parser)();
+} assetmap_t;
+
+static const char_t ASSET_SEARCH_PATHS[][FILENAME_MAX] = {
+  "%s/%s",
+  "./%s",
+  "../%s",
+  "../../%s",
+  "data/%s",
+  "../data/%s",
+};
+
+static const assetmap_t ASSET_MAP[] = {
+  { "DPF", ".dpf", assetParsePalette },
+  { "DPT", ".dpt", assetParseTileset },
+  { "DPI", ".dpi", assetParsePaletteImage },
+  { NULL, NULL, NULL }
+};
+
+#define ASSET_SEARCH_PATHS_COUNT (\
+  sizeof(ASSET_SEARCH_PATHS) / FILENAME_MAX\
+)
+
+extern asset_t ASSET;
+
+/**
+ * Initializes the asset system.
+ */
+errorret_t assetInit(void);
+
+/**
+ * Loads an asset by filename, blocking.
+ * 
+ * @param filename The filename of the asset to get.
+ * @param callback The callback to call when the asset is loaded.
+ * @param data The data for the callback function.
+ * @return The asset.
+ */
+void assetLoad(
+  const char_t *filename,
+  void (*callback)(void* data),
+  void *data
+);
+
+/**
+ * Disposes/cleans up the asset system.
+ */
+void assetDispose(void);