initial commit

src/pxl8_ase.h

@@ -0,0 +1,98 @@
+#pragma once
+
+#include "pxl8_types.h"
+
+#define PXL8_ASE_MAGIC 0xA5E0
+#define PXL8_ASE_FRAME_MAGIC 0xF1FA
+#define PXL8_ASE_CHUNK_CEL 0x2005
+#define PXL8_ASE_CHUNK_LAYER 0x2004
+#define PXL8_ASE_CHUNK_OLD_PALETTE 0x0004
+#define PXL8_ASE_CHUNK_PALETTE 0x2019
+
+typedef struct pxl8_ase_header {
+    u32 file_size;
+    u16 magic;
+    u16 frames;
+    u16 width;
+    u16 height;
+    u16 color_depth;
+    u32 flags;
+    u16 speed;
+    u32 transparent_index;
+    u8 n_colors;
+    u8 pixel_width;
+    u8 pixel_height;
+    i16 grid_x;
+    i16 grid_y;
+    u16 grid_width;
+    u16 grid_height;
+} pxl8_ase_header;
+
+typedef struct pxl8_ase_frame_header {
+    u32 frame_bytes;
+    u16 magic;
+    u16 chunks;
+    u16 duration;
+} pxl8_ase_frame_header;
+
+typedef struct pxl8_ase_chunk_header {
+    u32 chunk_size;
+    u16 chunk_type;
+} pxl8_ase_chunk_header;
+
+typedef struct pxl8_ase_cel {
+    u16 layer_index;
+    i16 x;
+    i16 y;
+    u8 opacity;
+    u16 cel_type;
+    u16 width;
+    u16 height;
+    u8* pixel_data;
+} pxl8_ase_cel;
+
+typedef struct pxl8_ase_layer {
+    u16 flags;
+    u16 layer_type;
+    u16 child_level;
+    u16 blend_mode;
+    u8 opacity;
+    char* name;
+} pxl8_ase_layer;
+
+typedef struct pxl8_ase_palette {
+    u32 entry_count;
+    u32 first_color;
+    u32 last_color;
+    u32* colors;
+} pxl8_ase_palette;
+
+typedef struct pxl8_ase_frame {
+    u16 frame_id;
+    u16 width;
+    u16 height;
+    i16 x;
+    i16 y;
+    u16 duration;
+    u8* pixels;
+} pxl8_ase_frame;
+
+typedef struct pxl8_ase_file {
+    u32 frame_count;
+    pxl8_ase_frame* frames;
+    pxl8_ase_header header;
+    u32 layer_count;
+    pxl8_ase_layer* layers;
+    pxl8_ase_palette palette;
+} pxl8_ase_file;
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+pxl8_result pxl8_ase_load(const char* filepath, pxl8_ase_file* ase_file);
+void pxl8_ase_free(pxl8_ase_file* ase_file);
+
+#ifdef __cplusplus
+}
+#endif