You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
349 lines
12 KiB
349 lines
12 KiB
//---------------------------------------------------------------------------- |
|
// Anti-Grain Geometry - Version 2.4 |
|
// 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 renderer_mclip |
|
// |
|
//---------------------------------------------------------------------------- |
|
|
|
#ifndef AGG_RENDERER_MCLIP_INCLUDED |
|
#define AGG_RENDERER_MCLIP_INCLUDED |
|
|
|
#include "agg_basics.h" |
|
#include "agg_array.h" |
|
#include "agg_renderer_base.h" |
|
|
|
namespace agg |
|
{ |
|
|
|
//----------------------------------------------------------renderer_mclip |
|
template<class PixelFormat> class renderer_mclip |
|
{ |
|
public: |
|
typedef PixelFormat pixfmt_type; |
|
typedef typename pixfmt_type::color_type color_type; |
|
typedef typename pixfmt_type::row_data row_data; |
|
typedef renderer_base<pixfmt_type> base_ren_type; |
|
|
|
//-------------------------------------------------------------------- |
|
explicit renderer_mclip(pixfmt_type& pixf) : |
|
m_ren(pixf), |
|
m_curr_cb(0), |
|
m_bounds(m_ren.xmin(), m_ren.ymin(), m_ren.xmax(), m_ren.ymax()) |
|
{} |
|
void attach(pixfmt_type& pixf) |
|
{ |
|
m_ren.attach(pixf); |
|
reset_clipping(true); |
|
} |
|
|
|
//-------------------------------------------------------------------- |
|
const pixfmt_type& ren() const { return m_ren.ren(); } |
|
pixfmt_type& ren() { return m_ren.ren(); } |
|
|
|
//-------------------------------------------------------------------- |
|
unsigned width() const { return m_ren.width(); } |
|
unsigned height() const { return m_ren.height(); } |
|
|
|
//-------------------------------------------------------------------- |
|
const rect_i& clip_box() const { return m_ren.clip_box(); } |
|
int xmin() const { return m_ren.xmin(); } |
|
int ymin() const { return m_ren.ymin(); } |
|
int xmax() const { return m_ren.xmax(); } |
|
int ymax() const { return m_ren.ymax(); } |
|
|
|
//-------------------------------------------------------------------- |
|
const rect_i& bounding_clip_box() const { return m_bounds; } |
|
int bounding_xmin() const { return m_bounds.x1; } |
|
int bounding_ymin() const { return m_bounds.y1; } |
|
int bounding_xmax() const { return m_bounds.x2; } |
|
int bounding_ymax() const { return m_bounds.y2; } |
|
|
|
//-------------------------------------------------------------------- |
|
void first_clip_box() |
|
{ |
|
m_curr_cb = 0; |
|
if(m_clip.size()) |
|
{ |
|
const rect_i& cb = m_clip[0]; |
|
m_ren.clip_box_naked(cb.x1, cb.y1, cb.x2, cb.y2); |
|
} |
|
} |
|
|
|
//-------------------------------------------------------------------- |
|
bool next_clip_box() |
|
{ |
|
if(++m_curr_cb < m_clip.size()) |
|
{ |
|
const rect_i& cb = m_clip[m_curr_cb]; |
|
m_ren.clip_box_naked(cb.x1, cb.y1, cb.x2, cb.y2); |
|
return true; |
|
} |
|
return false; |
|
} |
|
|
|
//-------------------------------------------------------------------- |
|
void reset_clipping(bool visibility) |
|
{ |
|
m_ren.reset_clipping(visibility); |
|
m_clip.remove_all(); |
|
m_curr_cb = 0; |
|
m_bounds = m_ren.clip_box(); |
|
} |
|
|
|
//-------------------------------------------------------------------- |
|
void add_clip_box(int x1, int y1, int x2, int y2) |
|
{ |
|
rect_i cb(x1, y1, x2, y2); |
|
cb.normalize(); |
|
if(cb.clip(rect_i(0, 0, width() - 1, height() - 1))) |
|
{ |
|
m_clip.add(cb); |
|
if(cb.x1 < m_bounds.x1) m_bounds.x1 = cb.x1; |
|
if(cb.y1 < m_bounds.y1) m_bounds.y1 = cb.y1; |
|
if(cb.x2 > m_bounds.x2) m_bounds.x2 = cb.x2; |
|
if(cb.y2 > m_bounds.y2) m_bounds.y2 = cb.y2; |
|
} |
|
} |
|
|
|
//-------------------------------------------------------------------- |
|
void clear(const color_type& c) |
|
{ |
|
m_ren.clear(c); |
|
} |
|
|
|
//-------------------------------------------------------------------- |
|
void copy_pixel(int x, int y, const color_type& c) |
|
{ |
|
first_clip_box(); |
|
do |
|
{ |
|
if(m_ren.inbox(x, y)) |
|
{ |
|
m_ren.ren().copy_pixel(x, y, c); |
|
break; |
|
} |
|
} |
|
while(next_clip_box()); |
|
} |
|
|
|
//-------------------------------------------------------------------- |
|
void blend_pixel(int x, int y, const color_type& c, cover_type cover) |
|
{ |
|
first_clip_box(); |
|
do |
|
{ |
|
if(m_ren.inbox(x, y)) |
|
{ |
|
m_ren.ren().blend_pixel(x, y, c, cover); |
|
break; |
|
} |
|
} |
|
while(next_clip_box()); |
|
} |
|
|
|
//-------------------------------------------------------------------- |
|
color_type pixel(int x, int y) const |
|
{ |
|
first_clip_box(); |
|
do |
|
{ |
|
if(m_ren.inbox(x, y)) |
|
{ |
|
return m_ren.ren().pixel(x, y); |
|
} |
|
} |
|
while(next_clip_box()); |
|
return color_type::no_color(); |
|
} |
|
|
|
//-------------------------------------------------------------------- |
|
void copy_hline(int x1, int y, int x2, const color_type& c) |
|
{ |
|
first_clip_box(); |
|
do |
|
{ |
|
m_ren.copy_hline(x1, y, x2, c); |
|
} |
|
while(next_clip_box()); |
|
} |
|
|
|
//-------------------------------------------------------------------- |
|
void copy_vline(int x, int y1, int y2, const color_type& c) |
|
{ |
|
first_clip_box(); |
|
do |
|
{ |
|
m_ren.copy_vline(x, y1, y2, c); |
|
} |
|
while(next_clip_box()); |
|
} |
|
|
|
//-------------------------------------------------------------------- |
|
void blend_hline(int x1, int y, int x2, |
|
const color_type& c, cover_type cover) |
|
{ |
|
first_clip_box(); |
|
do |
|
{ |
|
m_ren.blend_hline(x1, y, x2, c, cover); |
|
} |
|
while(next_clip_box()); |
|
} |
|
|
|
//-------------------------------------------------------------------- |
|
void blend_vline(int x, int y1, int y2, |
|
const color_type& c, cover_type cover) |
|
{ |
|
first_clip_box(); |
|
do |
|
{ |
|
m_ren.blend_vline(x, y1, y2, c, cover); |
|
} |
|
while(next_clip_box()); |
|
} |
|
|
|
//-------------------------------------------------------------------- |
|
void copy_bar(int x1, int y1, int x2, int y2, const color_type& c) |
|
{ |
|
first_clip_box(); |
|
do |
|
{ |
|
m_ren.copy_bar(x1, y1, x2, y2, c); |
|
} |
|
while(next_clip_box()); |
|
} |
|
|
|
//-------------------------------------------------------------------- |
|
void blend_bar(int x1, int y1, int x2, int y2, |
|
const color_type& c, cover_type cover) |
|
{ |
|
first_clip_box(); |
|
do |
|
{ |
|
m_ren.blend_bar(x1, y1, x2, y2, c, cover); |
|
} |
|
while(next_clip_box()); |
|
} |
|
|
|
//-------------------------------------------------------------------- |
|
void blend_solid_hspan(int x, int y, int len, |
|
const color_type& c, const cover_type* covers) |
|
{ |
|
first_clip_box(); |
|
do |
|
{ |
|
m_ren.blend_solid_hspan(x, y, len, c, covers); |
|
} |
|
while(next_clip_box()); |
|
} |
|
|
|
//-------------------------------------------------------------------- |
|
void blend_solid_vspan(int x, int y, int len, |
|
const color_type& c, const cover_type* covers) |
|
{ |
|
first_clip_box(); |
|
do |
|
{ |
|
m_ren.blend_solid_vspan(x, y, len, c, covers); |
|
} |
|
while(next_clip_box()); |
|
} |
|
|
|
|
|
//-------------------------------------------------------------------- |
|
void copy_color_hspan(int x, int y, int len, const color_type* colors) |
|
{ |
|
first_clip_box(); |
|
do |
|
{ |
|
m_ren.copy_color_hspan(x, y, len, colors); |
|
} |
|
while(next_clip_box()); |
|
} |
|
|
|
//-------------------------------------------------------------------- |
|
void blend_color_hspan(int x, int y, int len, |
|
const color_type* colors, |
|
const cover_type* covers, |
|
cover_type cover = cover_full) |
|
{ |
|
first_clip_box(); |
|
do |
|
{ |
|
m_ren.blend_color_hspan(x, y, len, colors, covers, cover); |
|
} |
|
while(next_clip_box()); |
|
} |
|
|
|
//-------------------------------------------------------------------- |
|
void blend_color_vspan(int x, int y, int len, |
|
const color_type* colors, |
|
const cover_type* covers, |
|
cover_type cover = cover_full) |
|
{ |
|
first_clip_box(); |
|
do |
|
{ |
|
m_ren.blend_color_vspan(x, y, len, colors, covers, cover); |
|
} |
|
while(next_clip_box()); |
|
} |
|
|
|
//-------------------------------------------------------------------- |
|
void copy_from(const rendering_buffer& from, |
|
const rect_i* rc=0, |
|
int x_to=0, |
|
int y_to=0) |
|
{ |
|
first_clip_box(); |
|
do |
|
{ |
|
m_ren.copy_from(from, rc, x_to, y_to); |
|
} |
|
while(next_clip_box()); |
|
} |
|
|
|
//-------------------------------------------------------------------- |
|
template<class SrcPixelFormatRenderer> |
|
void blend_from(const SrcPixelFormatRenderer& src, |
|
const rect_i* rect_src_ptr = 0, |
|
int dx = 0, |
|
int dy = 0, |
|
cover_type cover = cover_full) |
|
{ |
|
first_clip_box(); |
|
do |
|
{ |
|
m_ren.blend_from(src, rect_src_ptr, dx, dy, cover); |
|
} |
|
while(next_clip_box()); |
|
} |
|
|
|
|
|
private: |
|
renderer_mclip(const renderer_mclip<PixelFormat>&); |
|
const renderer_mclip<PixelFormat>& |
|
operator = (const renderer_mclip<PixelFormat>&); |
|
|
|
base_ren_type m_ren; |
|
pod_bvector<rect_i, 4> m_clip; |
|
unsigned m_curr_cb; |
|
rect_i m_bounds; |
|
}; |
|
|
|
|
|
} |
|
|
|
#endif
|
|
|