1 files changed, 98 insertions, 0 deletions
diff --git a/third_party/agg23/agg_path_storage.cpp b/third_party/agg23/agg_path_storage.cpp
new file mode 100644
index 0000000000..f5c9843e58
--- /dev/null
+++ b/third_party/agg23/agg_path_storage.cpp
@@ -0,0 +1,98 @@
+
+//----------------------------------------------------------------------------
+// XYQ: 2006-01-22 Copied from AGG project.
+// TODO: This file uses intensive floating point operations, so it's NOT suitable
+// for platforms like Symbian OS. We need to change to FIX format.
+//----------------------------------------------------------------------------
+//----------------------------------------------------------------------------
+// Anti-Grain Geometry - Version 2.3
+// Copyright (C) 2002-2005 Maxim Shemanarev (http://www.antigrain.com)
+//
+// Permission to copy, use, modify, sell and distribute this software
+// is granted provided this copyright notice appears in all copies.
+// This software is provided "as is" without express or implied
+// warranty, and with no claim as to its suitability for any purpose.
+//
+//----------------------------------------------------------------------------
+// Contact: mcseem@antigrain.com
+//          mcseemagg@yahoo.com
+//          http://www.antigrain.com
+//----------------------------------------------------------------------------
+//
+// Class path_storage
+//
+//----------------------------------------------------------------------------
+#include "../../core/include/fxcrt/fx_basic.h"
+#include "agg_path_storage.h"
+#include "agg_math.h"
+namespace agg
+{
+path_storage::~path_storage()
+{
+    if(m_total_blocks) {
+        FX_FLOAT** coord_blk = m_coord_blocks + m_total_blocks - 1;
+        while(m_total_blocks--) {
+            FX_Free(*coord_blk);
+            --coord_blk;
+        }
+        FX_Free(m_coord_blocks);
+    }
+}
+path_storage::path_storage() :
+    m_total_vertices(0),
+    m_total_blocks(0),
+    m_max_blocks(0),
+    m_coord_blocks(0),
+    m_cmd_blocks(0),
+    m_iterator(0)
+{
+}
+void path_storage::allocate_block(unsigned nb)
+{
+    if(nb >= m_max_blocks) {
+        FX_FLOAT** new_coords =
+            FX_Alloc2D(FX_FLOAT*, m_max_blocks + block_pool, 2);
+        unsigned char** new_cmds =
+            (unsigned char**)(new_coords + m_max_blocks + block_pool);
+        if(m_coord_blocks) {
+            FXSYS_memcpy(new_coords,
+                           m_coord_blocks,
+                           m_max_blocks * sizeof(FX_FLOAT*));
+            FXSYS_memcpy(new_cmds,
+                           m_cmd_blocks,
+                           m_max_blocks * sizeof(unsigned char*));
+            FX_Free(m_coord_blocks);
+        }
+        m_coord_blocks = new_coords;
+        m_cmd_blocks = new_cmds;
+        m_max_blocks += block_pool;
+    }
+    m_coord_blocks[nb] =
+        FX_Alloc( FX_FLOAT, block_size * 2 +
+                  block_size /
+                  (sizeof(FX_FLOAT) / sizeof(unsigned char)));
+    m_cmd_blocks[nb]  =
+        (unsigned char*)(m_coord_blocks[nb] + block_size * 2);
+    m_total_blocks++;
+}
+void path_storage::rewind(unsigned path_id)
+{
+    m_iterator = path_id;
+}
+void path_storage::curve4(FX_FLOAT x_ctrl1, FX_FLOAT y_ctrl1,
+                          FX_FLOAT x_ctrl2, FX_FLOAT y_ctrl2,
+                          FX_FLOAT x_to,    FX_FLOAT y_to)
+{
+    add_vertex(x_ctrl1, y_ctrl1, path_cmd_curve4);
+    add_vertex(x_ctrl2, y_ctrl2, path_cmd_curve4);
+    add_vertex(x_to,    y_to,    path_cmd_curve4);
+}
+void path_storage::end_poly()
+{
+    if(m_total_vertices) {
+        if(is_vertex(command(m_total_vertices - 1))) {
+            add_vertex(0, 0, path_cmd_end_poly | path_flags_close);
+        }
+    }
+}
+}