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Diffstat (limited to 'agg/inc/agg_renderer_mclip.h')
-rwxr-xr-x | agg/inc/agg_renderer_mclip.h | 383 |
1 files changed, 383 insertions, 0 deletions
diff --git a/agg/inc/agg_renderer_mclip.h b/agg/inc/agg_renderer_mclip.h new file mode 100755 index 000000000000..dc758b9ea72d --- /dev/null +++ b/agg/inc/agg_renderer_mclip.h @@ -0,0 +1,383 @@ +//---------------------------------------------------------------------------- +// 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 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 renderer_base<pixfmt_type> base_ren_type; + + //-------------------------------------------------------------------- + renderer_mclip(pixfmt_type& ren) : + m_ren(ren), + m_curr_cb(0), + m_bounds(m_ren.xmin(), m_ren.ymin(), m_ren.xmax(), m_ren.ymax()) + { + } + + //-------------------------------------------------------------------- + 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& 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& 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& 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& 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 cb(x1, y1, x2, y2); + cb.normalize(); + if(cb.clip(rect(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 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_hspan(x, y, len, colors, covers, cover); + } + while(next_clip_box()); + } + + + //-------------------------------------------------------------------- + void blend_qpaque_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_opaque_color_hspan(x, y, len, colors, covers, cover); + } + while(next_clip_box()); + } + + //-------------------------------------------------------------------- + void blend_opaque_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_opaque_color_hspan(x, y, len, colors, covers, cover); + } + while(next_clip_box()); + } + + + //-------------------------------------------------------------------- + void blend_color_hspan_no_clip(int x, int y, int len, + const color_type* colors, + const cover_type* covers, + cover_type cover = cover_full) + { + m_ren.blend_color_hspan_no_clip(x, y, len, colors, covers, cover); + } + + //-------------------------------------------------------------------- + void blend_color_vspan_no_clip(int x, int y, int len, + const color_type* colors, + const cover_type* covers, + cover_type cover = cover_full) + { + m_ren.blend_color_vspan_no_clip(x, y, len, colors, covers, cover); + } + + //-------------------------------------------------------------------- + void blend_opaque_color_hspan_no_clip(int x, int y, int len, + const color_type* colors, + const cover_type* covers, + cover_type cover = cover_full) + { + m_ren.blend_opaque_color_hspan_no_clip(x, y, len, colors, covers, cover); + } + + //-------------------------------------------------------------------- + void blend_opaque_color_vspan_no_clip(int x, int y, int len, + const color_type* colors, + const cover_type* covers, + cover_type cover = cover_full) + { + m_ren.blend_opaque_color_vspan_no_clip(x, y, len, colors, covers, cover); + } + + + //-------------------------------------------------------------------- + void copy_from(const rendering_buffer& from, + const rect* 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()); + } + + private: + renderer_mclip(const renderer_mclip<PixelFormat>&); + const renderer_mclip<PixelFormat>& + operator = (const renderer_mclip<PixelFormat>&); + + base_ren_type m_ren; + pod_deque<rect, 4> m_clip; + unsigned m_curr_cb; + rect m_bounds; + }; + + +} + +#endif |