Initial mouse code(mouse graphics driver from Chronoshift). Very buggy.

2026-08-17 17:00:29 +02:00 · 2020-06-07 08:54:51 -07:00
parent ffe6688efa
commit cc256ffb89
11 changed files with 430 additions and 65 deletions
@@ -0,0 +1,67 @@
+/**
+ * @file
+ *
+ * @author OmniBlade
+ * @author CCHyper
+ *
+ * @brief Low level sprite drawing functions for Dune2 sprite format (used for mouse in early C&C games).
+ *
+ * @copyright Chronoshift is free software: you can redistribute it and/or
+ *            modify it under the terms of the GNU General Public License
+ *            as published by the Free Software Foundation, either version
+ *            2 of the License, or (at your option) any later version.
+ *            A full copy of the GNU General Public License can be found in
+ *            LICENSE
+ */
+#pragma once
+
+#ifndef MOUSESHAPE_H
+#define MOUSESHAPE_H
+
+#pragma pack(push, 1)
+ // Header for each frame in the old SHP format... only used for mouse now.
+struct MouseShapeFrameHeader
+{
+    //"MAKESHAPE_NORMAL"   0
+    //"MAKESHAPE_COMPACT"  1
+    //"MAKESHAPE_NOCOMP"   2
+    //"MAKESHAPE_VARIABLE" 4
+    uint16_t flags; // flag 1 specifies that a 16 byte color table follows the header.
+                    // flag 2 specifies that this frame doesn't have LCW compression,
+                    // this frame would only have RLE compression.
+                    // flag 4 specifies a custom length color table follows the header.
+    uint8_t height; //height after RLE compression?
+    uint16_t width;
+    uint8_t original_height; // original frame height without any compression.
+    uint16_t shape_size; // full frame size including this header.
+    uint16_t data_length; // uncompressed size, frame size minus header if flag 2 is specified.
+    //
+    // Following this is optional data, in Dune 2 this was used to specify remap indexes.
+    // If flag 1 is set then a uint8_t color_table[16] follows.
+    // if flag 4 is set then a uint8_t color_table_size and uint8_t color_table[color_table_size] follows.
+};
+
+// Header for the old SHP format... only used for mouse now. Offset values need +2 to get actual frame pos.
+struct MouseShapeHeader
+{
+    uint16_t frame_count;
+    uint32_t offset;
+};
+#pragma pack(pop)
+
+class WWMouseClass;
+class GraphicViewPortClass;
+
+int Get_Shape_Uncomp_Size(void* shape);
+int Extract_Shape_Count(void* shape);
+void* Extract_Shape(void* shape, int frame = 0);
+int Get_Shape_Width(void* shape);
+int Get_Shape_Height(void* shape);
+int Restore_Shape_Height(void* shape);
+int Get_Shape_Original_Height(void* shape);
+
+void __cdecl Mouse_Shadow_Buffer(WWMouseClass& mouse, GraphicViewPortClass& viewport, void* buffer, int x_pos, int y_pos, int hspot_x, int hspot_y, BOOL save);
+void __cdecl Mouse_Draw(WWMouseClass& mouse, GraphicViewPortClass& viewport, int x_pos, int y_pos);
+void* __cdecl Mouse_Set_Cursor(WWMouseClass& mouse, int hspot_x, int hspot_y, void* shape);
+
+#endif