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