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-rwxr-xr-xagg/inc/agg_scanline_storage_aa.h796
1 files changed, 0 insertions, 796 deletions
diff --git a/agg/inc/agg_scanline_storage_aa.h b/agg/inc/agg_scanline_storage_aa.h
deleted file mode 100755
index 3d8b5b946cf9..000000000000
--- a/agg/inc/agg_scanline_storage_aa.h
+++ /dev/null
@@ -1,796 +0,0 @@
-//----------------------------------------------------------------------------
-// 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
-//----------------------------------------------------------------------------
-
-#ifndef AGG_SCANLINE_STORAGE_AA_INCLUDED
-#define AGG_SCANLINE_STORAGE_AA_INCLUDED
-
-#include <string.h>
-#include <stdlib.h>
-#include <math.h>
-#include "agg_array.h"
-#include "agg_render_scanlines.h"
-
-
-namespace agg
-{
-
- //----------------------------------------------scanline_cell_storage
- template<class T> class scanline_cell_storage
- {
- struct extra_span
- {
- unsigned len;
- T* ptr;
- };
-
- public:
- typedef T value_type;
-
- //---------------------------------------------------------------
- ~scanline_cell_storage()
- {
- remove_all();
- }
-
- //---------------------------------------------------------------
- scanline_cell_storage() :
- m_cells(128-2),
- m_extra_storage()
- {}
-
-
- // Copying
- //---------------------------------------------------------------
- scanline_cell_storage(const scanline_cell_storage<T>& v) :
- m_cells(v.m_cells),
- m_extra_storage()
- {
- copy_extra_storage(v);
- }
-
- //---------------------------------------------------------------
- const scanline_cell_storage<T>&
- operator = (const scanline_cell_storage<T>& v)
- {
- remove_all();
- m_cells = v.m_cells;
- copy_extra_storage(v);
- return *this;
- }
-
- //---------------------------------------------------------------
- void remove_all()
- {
- int i;
- for(i = m_extra_storage.size()-1; i >= 0; --i)
- {
- delete [] m_extra_storage[(unsigned)i].ptr;
- }
- m_extra_storage.remove_all();
- m_cells.remove_all();
- }
-
- //---------------------------------------------------------------
- int add_cells(const T* cells, unsigned num_cells)
- {
- int idx = m_cells.allocate_continuous_block(num_cells);
- if(idx >= 0)
- {
- T* ptr = &m_cells[idx];
- memcpy(ptr, cells, sizeof(T) * num_cells);
- return idx;
- }
- extra_span s;
- s.len = num_cells;
- s.ptr = new T [num_cells];
- memcpy(s.ptr, cells, sizeof(T) * num_cells);
- m_extra_storage.add(s);
- return -int(m_extra_storage.size());
- }
-
- //---------------------------------------------------------------
- const T* operator [] (int idx) const
- {
- if(idx >= 0)
- {
- if((unsigned)idx >= m_cells.size()) return 0;
- return &m_cells[(unsigned)idx];
- }
- unsigned i = unsigned(-idx - 1);
- if(i >= m_extra_storage.size()) return 0;
- return m_extra_storage[i].ptr;
- }
-
- //---------------------------------------------------------------
- T* operator [] (int idx)
- {
- if(idx >= 0)
- {
- if((unsigned)idx >= m_cells.size()) return 0;
- return &m_cells[(unsigned)idx];
- }
- unsigned i = unsigned(-idx - 1);
- if(i >= m_extra_storage.size()) return 0;
- return m_extra_storage[i].ptr;
- }
-
- private:
- void copy_extra_storage(const scanline_cell_storage<T>& v)
- {
- unsigned i;
- for(i = 0; i < v.m_extra_storage.size(); ++i)
- {
- const extra_span& src = v.m_extra_storage[i];
- extra_span dst;
- dst.len = src.len;
- dst.ptr = new T [dst.len];
- memcpy(dst.ptr, src.ptr, dst.len * sizeof(T));
- m_extra_storage.add(dst);
- }
- }
-
- pod_deque<T, 12> m_cells;
- pod_deque<extra_span, 6> m_extra_storage;
- };
-
-
-
-
-
-
- //-----------------------------------------------scanline_storage_aa
- template<class T> class scanline_storage_aa
- {
- public:
- typedef T cover_type;
-
- //---------------------------------------------------------------
- struct span_data
- {
- int16 x;
- int16 len; // If negative, it's a solid span, covers is valid
- int covers_id; // The index of the cells in the scanline_cell_storage
- };
-
- //---------------------------------------------------------------
- struct scanline_data
- {
- int y;
- unsigned num_spans;
- unsigned start_span;
- };
-
-
- //---------------------------------------------------------------
- class embedded_scanline
- {
- public:
-
- //-----------------------------------------------------------
- class const_iterator
- {
- public:
- struct span
- {
- int16 x;
- int16 len; // If negative, it's a solid span, covers is valid
- const T* covers;
- };
-
- const_iterator(const embedded_scanline& sl) :
- m_storage(sl.m_storage),
- m_span_idx(sl.m_scanline.start_span)
- {
- init_span();
- }
-
- const span& operator*() const { return m_span; }
- const span* operator->() const { return &m_span; }
-
- void operator ++ ()
- {
- ++m_span_idx;
- init_span();
- }
-
- private:
- void init_span()
- {
- const span_data& s = m_storage->span_by_index(m_span_idx);
- m_span.x = s.x;
- m_span.len = s.len;
- m_span.covers = m_storage->covers_by_index(s.covers_id);
- }
-
- const scanline_storage_aa* m_storage;
- unsigned m_span_idx;
- span m_span;
- };
-
- friend class const_iterator;
-
-
- //-----------------------------------------------------------
- embedded_scanline(const scanline_storage_aa& storage) :
- m_storage(&storage)
- {
- init(0);
- }
-
- //-----------------------------------------------------------
- void reset(int, int) {}
- unsigned num_spans() const { return m_scanline.num_spans; }
- int y() const { return m_scanline.y; }
- const_iterator begin() const { return const_iterator(*this); }
-
- //-----------------------------------------------------------
- void init(unsigned scanline_idx)
- {
- m_scanline_idx = scanline_idx;
- m_scanline = m_storage->scanline_by_index(m_scanline_idx);
- }
-
- private:
- const scanline_storage_aa* m_storage;
- scanline_data m_scanline;
- unsigned m_scanline_idx;
- };
-
-
- //---------------------------------------------------------------
- scanline_storage_aa() :
- m_covers(),
- m_spans(256-2), // Block increment size
- m_scanlines(),
- m_min_x( 0x7FFFFFFF),
- m_min_y( 0x7FFFFFFF),
- m_max_x(-0x7FFFFFFF),
- m_max_y(-0x7FFFFFFF),
- m_cur_scanline(0)
- {
- m_fake_scanline.y = 0;
- m_fake_scanline.num_spans = 0;
- m_fake_scanline.start_span = 0;
- m_fake_span.x = 0;
- m_fake_span.len = 0;
- m_fake_span.covers_id = 0;
- }
-
- // Renderer Interface
- //---------------------------------------------------------------
- void prepare(unsigned)
- {
- m_covers.remove_all();
- m_scanlines.remove_all();
- m_spans.remove_all();
- m_min_x = 0x7FFFFFFF;
- m_min_y = 0x7FFFFFFF;
- m_max_x = -0x7FFFFFFF;
- m_max_y = -0x7FFFFFFF;
- m_cur_scanline = 0;
- }
-
- //---------------------------------------------------------------
- template<class Scanline> void render(const Scanline& sl)
- {
- scanline_data sl_this;
-
- int y = sl.y();
- if(y < m_min_y) m_min_y = y;
- if(y > m_max_y) m_max_y = y;
-
- sl_this.y = y;
- sl_this.num_spans = sl.num_spans();
- sl_this.start_span = m_spans.size();
- typename Scanline::const_iterator span_iterator = sl.begin();
-
- unsigned num_spans = sl_this.num_spans;
- do
- {
- span_data sp;
-
- sp.x = span_iterator->x;
- sp.len = span_iterator->len;
- int len = abs(int(sp.len));
- sp.covers_id =
- m_covers.add_cells(span_iterator->covers,
- unsigned(len));
- m_spans.add(sp);
- int x1 = sp.x;
- int x2 = sp.x + len - 1;
- if(x1 < m_min_x) m_min_x = x1;
- if(x2 > m_max_x) m_max_x = x2;
- ++span_iterator;
- }
- while(--num_spans);
- m_scanlines.add(sl_this);
- }
-
-
- //---------------------------------------------------------------
- // Iterate scanlines interface
- int min_x() const { return m_min_x; }
- int min_y() const { return m_min_y; }
- int max_x() const { return m_max_x; }
- int max_y() const { return m_max_y; }
-
- //---------------------------------------------------------------
- bool rewind_scanlines()
- {
- m_cur_scanline = 0;
- return m_scanlines.size() > 0;
- }
-
-
- //---------------------------------------------------------------
- template<class Scanline> bool sweep_scanline(Scanline& sl)
- {
- sl.reset_spans();
- for(;;)
- {
- if(m_cur_scanline >= m_scanlines.size()) return false;
- const scanline_data& sl_this = m_scanlines[m_cur_scanline];
-
- unsigned num_spans = sl_this.num_spans;
- unsigned span_idx = sl_this.start_span;
- do
- {
- const span_data& sp = m_spans[span_idx++];
- const T* covers = covers_by_index(sp.covers_id);
- if(sp.len < 0)
- {
- sl.add_span(sp.x, unsigned(-sp.len), *covers);
- }
- else
- {
- sl.add_cells(sp.x, sp.len, covers);
- }
- }
- while(--num_spans);
- ++m_cur_scanline;
- if(sl.num_spans())
- {
- sl.finalize(sl_this.y);
- break;
- }
- }
- return true;
- }
-
-
- //---------------------------------------------------------------
- // Specialization for embedded_scanline
- bool sweep_scanline(embedded_scanline& sl)
- {
- do
- {
- if(m_cur_scanline >= m_scanlines.size()) return false;
- sl.init(m_cur_scanline);
- ++m_cur_scanline;
- }
- while(sl.num_spans() == 0);
- return true;
- }
-
- //---------------------------------------------------------------
- unsigned byte_size() const
- {
- unsigned i;
- unsigned size = sizeof(int16) * 4; // min_x, min_y, max_x, max_y
-
- for(i = 0; i < m_scanlines.size(); ++i)
- {
- size += sizeof(int16) * 3; // scanline size in bytes, Y, num_spans
-
- const scanline_data& sl_this = m_scanlines[i];
-
- unsigned num_spans = sl_this.num_spans;
- unsigned span_idx = sl_this.start_span;
- do
- {
- const span_data& sp = m_spans[span_idx++];
-
- size += sizeof(int16) * 2; // X, span_len
- if(sp.len < 0)
- {
- size += sizeof(T); // cover
- }
- else
- {
- size += sizeof(T) * unsigned(sp.len); // covers
- }
- }
- while(--num_spans);
- }
- return size;
- }
-
-
- //---------------------------------------------------------------
- static void write_int16(int8u* dst, int16 val)
- {
- dst[0] = ((const int8u*)&val)[0];
- dst[1] = ((const int8u*)&val)[1];
- }
-
-
- //---------------------------------------------------------------
- void serialize(int8u* data) const
- {
- unsigned i;
-
- write_int16(data, int16u(min_x())); // min_x
- data += sizeof(int16u);
- write_int16(data, int16u(min_y())); // min_y
- data += sizeof(int16u);
- write_int16(data, int16u(max_x())); // max_x
- data += sizeof(int16u);
- write_int16(data, int16u(max_y())); // max_y
- data += sizeof(int16u);
-
- for(i = 0; i < m_scanlines.size(); ++i)
- {
- const scanline_data& sl_this = m_scanlines[i];
-
- int8u* size_ptr = data;
- data += sizeof(int16); // Reserve space for scanline size in bytes
-
- write_int16(data, int16(sl_this.y)); // Y
- data += sizeof(int16);
-
- write_int16(data, int16(sl_this.num_spans)); // num_spans
- data += sizeof(int16);
-
- unsigned num_spans = sl_this.num_spans;
- unsigned span_idx = sl_this.start_span;
- do
- {
- const span_data& sp = m_spans[span_idx++];
- const T* covers = covers_by_index(sp.covers_id);
-
- write_int16(data, int16(sp.x)); // X
- data += sizeof(int16);
-
- write_int16(data, int16(sp.len)); // span_len
- data += sizeof(int16);
-
- if(sp.len < 0)
- {
- memcpy(data, covers, sizeof(T));
- data += sizeof(T);
- }
- else
- {
- memcpy(data, covers, unsigned(sp.len) * sizeof(T));
- data += sizeof(T) * unsigned(sp.len);
- }
- }
- while(--num_spans);
- write_int16(size_ptr, int16(unsigned(data - size_ptr)));
- }
- }
-
-
- //---------------------------------------------------------------
- const scanline_data& scanline_by_index(unsigned i) const
- {
- return (i < m_scanlines.size()) ? m_scanlines[i] : m_fake_scanline;
- }
-
- //---------------------------------------------------------------
- const span_data& span_by_index(unsigned i) const
- {
- return (i < m_spans.size()) ? m_spans[i] : m_fake_span;
- }
-
- //---------------------------------------------------------------
- const T* covers_by_index(int i) const
- {
- return m_covers[i];
- }
-
- private:
- scanline_cell_storage<T> m_covers;
- pod_deque<span_data, 10> m_spans;
- pod_deque<scanline_data, 8> m_scanlines;
- span_data m_fake_span;
- scanline_data m_fake_scanline;
- int m_min_x;
- int m_min_y;
- int m_max_x;
- int m_max_y;
- unsigned m_cur_scanline;
- };
-
-
- typedef scanline_storage_aa<int8u> scanline_storage_aa8; //--------scanline_storage_aa8
- typedef scanline_storage_aa<int16u> scanline_storage_aa16; //--------scanline_storage_aa16
- typedef scanline_storage_aa<int32u> scanline_storage_aa32; //--------scanline_storage_aa32
-
-
-
-
- //------------------------------------------serialized_scanlines_adaptor_aa
- template<class T> class serialized_scanlines_adaptor_aa
- {
- public:
- typedef T cover_type;
-
- //---------------------------------------------------------------------
- class embedded_scanline
- {
- public:
- typedef T cover_type;
-
- //-----------------------------------------------------------------
- class const_iterator
- {
- public:
- struct span
- {
- int16 x;
- int16 len; // If negative, it's a solid span, "covers" is valid
- const T* covers;
- };
-
- const_iterator(const embedded_scanline& sl) :
- m_ptr(sl.m_ptr),
- m_dx(sl.m_dx)
- {
- init_span();
- }
-
- const span& operator*() const { return m_span; }
- const span* operator->() const { return &m_span; }
-
- void operator ++ ()
- {
- if(m_span.len < 0)
- {
- m_ptr += sizeof(T);
- }
- else
- {
- m_ptr += m_span.len * sizeof(T);
- }
- init_span();
- }
-
- private:
- int read_int16()
- {
- int16 val;
- ((int8u*)&val)[0] = *m_ptr++;
- ((int8u*)&val)[1] = *m_ptr++;
- return val;
- }
-
- void init_span()
- {
- m_span.x = read_int16() + m_dx;
- m_span.len = read_int16();
- m_span.covers = m_ptr;
- }
-
- const int8u* m_ptr;
- span m_span;
- int m_dx;
- };
-
- friend class const_iterator;
-
-
- //-----------------------------------------------------------------
- embedded_scanline() : m_ptr(0), m_y(0), m_num_spans(0) {}
-
- //-----------------------------------------------------------------
- void reset(int, int) {}
- unsigned num_spans() const { return m_num_spans; }
- int y() const { return m_y; }
- const_iterator begin() const { return const_iterator(*this); }
-
-
- private:
- //-----------------------------------------------------------------
- int read_int16()
- {
- int16 val;
- ((int8u*)&val)[0] = *m_ptr++;
- ((int8u*)&val)[1] = *m_ptr++;
- return val;
- }
-
- public:
- //-----------------------------------------------------------------
- void init(const int8u* ptr, int dx, int dy)
- {
- m_ptr = ptr;
- m_y = read_int16() + dy;
- m_num_spans = unsigned(read_int16());
- m_dx = dx;
- }
-
- private:
- const int8u* m_ptr;
- int m_y;
- unsigned m_num_spans;
- int m_dx;
- };
-
-
-
- public:
- //--------------------------------------------------------------------
- serialized_scanlines_adaptor_aa() :
- m_data(0),
- m_end(0),
- m_ptr(0),
- m_dx(0),
- m_dy(0),
- m_min_x(0x7FFFFFFF),
- m_min_y(0x7FFFFFFF),
- m_max_x(-0x7FFFFFFF),
- m_max_y(-0x7FFFFFFF)
- {}
-
- //--------------------------------------------------------------------
- serialized_scanlines_adaptor_aa(const int8u* data, unsigned size,
- double dx, double dy) :
- m_data(data),
- m_end(data + size),
- m_ptr(data),
- m_dx(int(floor(dx + 0.5))),
- m_dy(int(floor(dy + 0.5))),
- m_min_x(0x7FFFFFFF),
- m_min_y(0x7FFFFFFF),
- m_max_x(-0x7FFFFFFF),
- m_max_y(-0x7FFFFFFF)
- {}
-
- //--------------------------------------------------------------------
- void init(const int8u* data, unsigned size, double dx, double dy)
- {
- m_data = data;
- m_end = data + size;
- m_ptr = data;
- m_dx = int(floor(dx + 0.5));
- m_dy = int(floor(dy + 0.5));
- m_min_x = 0x7FFFFFFF;
- m_min_y = 0x7FFFFFFF;
- m_max_x = -0x7FFFFFFF;
- m_max_y = -0x7FFFFFFF;
- }
-
- private:
- //--------------------------------------------------------------------
- int read_int16()
- {
- int16 val;
- ((int8u*)&val)[0] = *m_ptr++;
- ((int8u*)&val)[1] = *m_ptr++;
- return val;
- }
-
- //--------------------------------------------------------------------
- unsigned read_int16u()
- {
- int16u val;
- ((int8u*)&val)[0] = *m_ptr++;
- ((int8u*)&val)[1] = *m_ptr++;
- return val;
- }
-
- public:
- // Iterate scanlines interface
- //--------------------------------------------------------------------
- bool rewind_scanlines()
- {
- m_ptr = m_data;
- if(m_ptr < m_end)
- {
- m_min_x = read_int16() + m_dx;
- m_min_y = read_int16() + m_dy;
- m_max_x = read_int16() + m_dx;
- m_max_y = read_int16() + m_dy;
- return true;
- }
- return false;
- }
-
- //--------------------------------------------------------------------
- int min_x() const { return m_min_x; }
- int min_y() const { return m_min_y; }
- int max_x() const { return m_max_x; }
- int max_y() const { return m_max_y; }
-
- //--------------------------------------------------------------------
- template<class Scanline> bool sweep_scanline(Scanline& sl)
- {
- sl.reset_spans();
- for(;;)
- {
- if(m_ptr >= m_end) return false;
-
- read_int16(); // Skip scanline size in bytes
- int y = read_int16() + m_dy;
- unsigned num_spans = read_int16();
-
- do
- {
- int x = read_int16() + m_dx;
- int len = read_int16();
-
- if(len < 0)
- {
- sl.add_span(x, unsigned(-len), *m_ptr);
- m_ptr += sizeof(T);
- }
- else
- {
- sl.add_cells(x, len, m_ptr);
- m_ptr += len * sizeof(T);
- }
- }
- while(--num_spans);
-
- if(sl.num_spans())
- {
- sl.finalize(y);
- break;
- }
- }
- return true;
- }
-
-
- //--------------------------------------------------------------------
- // Specialization for embedded_scanline
- bool sweep_scanline(embedded_scanline& sl)
- {
- do
- {
- if(m_ptr >= m_end) return false;
-
- unsigned byte_size = read_int16u();
- sl.init(m_ptr, m_dx, m_dy);
- m_ptr += byte_size - sizeof(int16);
- }
- while(sl.num_spans() == 0);
- return true;
- }
-
- private:
- const int8u* m_data;
- const int8u* m_end;
- const int8u* m_ptr;
- int m_dx;
- int m_dy;
- int m_min_x;
- int m_min_y;
- int m_max_x;
- int m_max_y;
- };
-
-
-
- typedef serialized_scanlines_adaptor_aa<int8u> serialized_scanlines_adaptor_aa8; //----serialized_scanlines_adaptor_aa8
- typedef serialized_scanlines_adaptor_aa<int16u> serialized_scanlines_adaptor_aa16; //----serialized_scanlines_adaptor_aa16
- typedef serialized_scanlines_adaptor_aa<int32u> serialized_scanlines_adaptor_aa32; //----serialized_scanlines_adaptor_aa32
-
-}
-
-
-#endif
-
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