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author | shumkovnd <shumkovnd@yandex-team.com> | 2023-11-10 14:39:34 +0300 |
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committer | shumkovnd <shumkovnd@yandex-team.com> | 2023-11-10 16:42:24 +0300 |
commit | 77eb2d3fdcec5c978c64e025ced2764c57c00285 (patch) | |
tree | c51edb0748ca8d4a08d7c7323312c27ba1a8b79a /contrib/python/matplotlib/py2/extern/agg24-svn/include/agg_pixfmt_gray.h | |
parent | dd6d20cadb65582270ac23f4b3b14ae189704b9d (diff) | |
download | ydb-77eb2d3fdcec5c978c64e025ced2764c57c00285.tar.gz |
KIKIMR-19287: add task_stats_drawing script
Diffstat (limited to 'contrib/python/matplotlib/py2/extern/agg24-svn/include/agg_pixfmt_gray.h')
-rw-r--r-- | contrib/python/matplotlib/py2/extern/agg24-svn/include/agg_pixfmt_gray.h | 737 |
1 files changed, 737 insertions, 0 deletions
diff --git a/contrib/python/matplotlib/py2/extern/agg24-svn/include/agg_pixfmt_gray.h b/contrib/python/matplotlib/py2/extern/agg24-svn/include/agg_pixfmt_gray.h new file mode 100644 index 0000000000..438f04d33d --- /dev/null +++ b/contrib/python/matplotlib/py2/extern/agg24-svn/include/agg_pixfmt_gray.h @@ -0,0 +1,737 @@ +//---------------------------------------------------------------------------- +// 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 +//---------------------------------------------------------------------------- +// +// Adaptation for high precision colors has been sponsored by +// Liberty Technology Systems, Inc., visit http://lib-sys.com +// +// Liberty Technology Systems, Inc. is the provider of +// PostScript and PDF technology for software developers. +// +//---------------------------------------------------------------------------- + +#ifndef AGG_PIXFMT_GRAY_INCLUDED +#define AGG_PIXFMT_GRAY_INCLUDED + +#include <string.h> +#include "agg_pixfmt_base.h" +#include "agg_rendering_buffer.h" + +namespace agg +{ + + //============================================================blender_gray + template<class ColorT> struct blender_gray + { + typedef ColorT color_type; + typedef typename color_type::value_type value_type; + typedef typename color_type::calc_type calc_type; + typedef typename color_type::long_type long_type; + + // Blend pixels using the non-premultiplied form of Alvy-Ray Smith's + // compositing function. Since the render buffer is opaque we skip the + // initial premultiply and final demultiply. + + static AGG_INLINE void blend_pix(value_type* p, + value_type cv, value_type alpha, cover_type cover) + { + blend_pix(p, cv, color_type::mult_cover(alpha, cover)); + } + + static AGG_INLINE void blend_pix(value_type* p, + value_type cv, value_type alpha) + { + *p = color_type::lerp(*p, cv, alpha); + } + }; + + + //======================================================blender_gray_pre + template<class ColorT> struct blender_gray_pre + { + typedef ColorT color_type; + typedef typename color_type::value_type value_type; + typedef typename color_type::calc_type calc_type; + typedef typename color_type::long_type long_type; + + // Blend pixels using the premultiplied form of Alvy-Ray Smith's + // compositing function. + + static AGG_INLINE void blend_pix(value_type* p, + value_type cv, value_type alpha, cover_type cover) + { + blend_pix(p, color_type::mult_cover(cv, cover), color_type::mult_cover(alpha, cover)); + } + + static AGG_INLINE void blend_pix(value_type* p, + value_type cv, value_type alpha) + { + *p = color_type::prelerp(*p, cv, alpha); + } + }; + + + + //=====================================================apply_gamma_dir_gray + template<class ColorT, class GammaLut> class apply_gamma_dir_gray + { + public: + typedef typename ColorT::value_type value_type; + + apply_gamma_dir_gray(const GammaLut& gamma) : m_gamma(gamma) {} + + AGG_INLINE void operator () (value_type* p) + { + *p = m_gamma.dir(*p); + } + + private: + const GammaLut& m_gamma; + }; + + + + //=====================================================apply_gamma_inv_gray + template<class ColorT, class GammaLut> class apply_gamma_inv_gray + { + public: + typedef typename ColorT::value_type value_type; + + apply_gamma_inv_gray(const GammaLut& gamma) : m_gamma(gamma) {} + + AGG_INLINE void operator () (value_type* p) + { + *p = m_gamma.inv(*p); + } + + private: + const GammaLut& m_gamma; + }; + + + + //=================================================pixfmt_alpha_blend_gray + template<class Blender, class RenBuf, unsigned Step = 1, unsigned Offset = 0> + class pixfmt_alpha_blend_gray + { + public: + typedef pixfmt_gray_tag pixfmt_category; + typedef RenBuf rbuf_type; + typedef typename rbuf_type::row_data row_data; + typedef Blender blender_type; + typedef typename blender_type::color_type color_type; + typedef int order_type; // A fake one + typedef typename color_type::value_type value_type; + typedef typename color_type::calc_type calc_type; + enum + { + pix_width = sizeof(value_type) * Step, + pix_step = Step, + pix_offset = Offset, + }; + struct pixel_type + { + value_type c[pix_step]; + + void set(value_type v) + { + c[0] = v; + } + + void set(const color_type& color) + { + set(color.v); + } + + void get(value_type& v) const + { + v = c[0]; + } + + color_type get() const + { + return color_type(c[0]); + } + + pixel_type* next() + { + return this + 1; + } + + const pixel_type* next() const + { + return this + 1; + } + + pixel_type* advance(int n) + { + return this + n; + } + + const pixel_type* advance(int n) const + { + return this + n; + } + }; + + private: + //-------------------------------------------------------------------- + AGG_INLINE void blend_pix(pixel_type* p, + value_type v, value_type a, + unsigned cover) + { + blender_type::blend_pix(p->c, v, a, cover); + } + + //-------------------------------------------------------------------- + AGG_INLINE void blend_pix(pixel_type* p, value_type v, value_type a) + { + blender_type::blend_pix(p->c, v, a); + } + + //-------------------------------------------------------------------- + AGG_INLINE void blend_pix(pixel_type* p, const color_type& c, unsigned cover) + { + blender_type::blend_pix(p->c, c.v, c.a, cover); + } + + //-------------------------------------------------------------------- + AGG_INLINE void blend_pix(pixel_type* p, const color_type& c) + { + blender_type::blend_pix(p->c, c.v, c.a); + } + + //-------------------------------------------------------------------- + AGG_INLINE void copy_or_blend_pix(pixel_type* p, const color_type& c, unsigned cover) + { + if (!c.is_transparent()) + { + if (c.is_opaque() && cover == cover_mask) + { + p->set(c); + } + else + { + blend_pix(p, c, cover); + } + } + } + + //-------------------------------------------------------------------- + AGG_INLINE void copy_or_blend_pix(pixel_type* p, const color_type& c) + { + if (!c.is_transparent()) + { + if (c.is_opaque()) + { + p->set(c); + } + else + { + blend_pix(p, c); + } + } + } + + public: + //-------------------------------------------------------------------- + explicit pixfmt_alpha_blend_gray(rbuf_type& rb) : + m_rbuf(&rb) + {} + void attach(rbuf_type& rb) { m_rbuf = &rb; } + //-------------------------------------------------------------------- + + template<class PixFmt> + bool attach(PixFmt& pixf, int x1, int y1, int x2, int y2) + { + rect_i r(x1, y1, x2, y2); + if (r.clip(rect_i(0, 0, pixf.width()-1, pixf.height()-1))) + { + int stride = pixf.stride(); + m_rbuf->attach(pixf.pix_ptr(r.x1, stride < 0 ? r.y2 : r.y1), + (r.x2 - r.x1) + 1, + (r.y2 - r.y1) + 1, + stride); + return true; + } + return false; + } + + //-------------------------------------------------------------------- + AGG_INLINE unsigned width() const { return m_rbuf->width(); } + AGG_INLINE unsigned height() const { return m_rbuf->height(); } + AGG_INLINE int stride() const { return m_rbuf->stride(); } + + //-------------------------------------------------------------------- + int8u* row_ptr(int y) { return m_rbuf->row_ptr(y); } + const int8u* row_ptr(int y) const { return m_rbuf->row_ptr(y); } + row_data row(int y) const { return m_rbuf->row(y); } + + //-------------------------------------------------------------------- + AGG_INLINE int8u* pix_ptr(int x, int y) + { + return m_rbuf->row_ptr(y) + sizeof(value_type) * (x * pix_step + pix_offset); + } + + AGG_INLINE const int8u* pix_ptr(int x, int y) const + { + return m_rbuf->row_ptr(y) + sizeof(value_type) * (x * pix_step + pix_offset); + } + + // Return pointer to pixel value, forcing row to be allocated. + AGG_INLINE pixel_type* pix_value_ptr(int x, int y, unsigned len) + { + return (pixel_type*)(m_rbuf->row_ptr(x, y, len) + sizeof(value_type) * (x * pix_step + pix_offset)); + } + + // Return pointer to pixel value, or null if row not allocated. + AGG_INLINE const pixel_type* pix_value_ptr(int x, int y) const + { + int8u* p = m_rbuf->row_ptr(y); + return p ? (pixel_type*)(p + sizeof(value_type) * (x * pix_step + pix_offset)) : 0; + } + + // Get pixel pointer from raw buffer pointer. + AGG_INLINE static pixel_type* pix_value_ptr(void* p) + { + return (pixel_type*)((value_type*)p + pix_offset); + } + + // Get pixel pointer from raw buffer pointer. + AGG_INLINE static const pixel_type* pix_value_ptr(const void* p) + { + return (const pixel_type*)((const value_type*)p + pix_offset); + } + + //-------------------------------------------------------------------- + AGG_INLINE static void write_plain_color(void* p, color_type c) + { + // Grayscale formats are implicitly premultiplied. + c.premultiply(); + pix_value_ptr(p)->set(c); + } + + //-------------------------------------------------------------------- + AGG_INLINE static color_type read_plain_color(const void* p) + { + return pix_value_ptr(p)->get(); + } + + //-------------------------------------------------------------------- + AGG_INLINE static void make_pix(int8u* p, const color_type& c) + { + ((pixel_type*)p)->set(c); + } + + //-------------------------------------------------------------------- + AGG_INLINE color_type pixel(int x, int y) const + { + if (const pixel_type* p = pix_value_ptr(x, y)) + { + return p->get(); + } + return color_type::no_color(); + } + + //-------------------------------------------------------------------- + AGG_INLINE void copy_pixel(int x, int y, const color_type& c) + { + pix_value_ptr(x, y, 1)->set(c); + } + + //-------------------------------------------------------------------- + AGG_INLINE void blend_pixel(int x, int y, const color_type& c, int8u cover) + { + copy_or_blend_pix(pix_value_ptr(x, y, 1), c, cover); + } + + //-------------------------------------------------------------------- + AGG_INLINE void copy_hline(int x, int y, + unsigned len, + const color_type& c) + { + pixel_type* p = pix_value_ptr(x, y, len); + do + { + p->set(c); + p = p->next(); + } + while(--len); + } + + + //-------------------------------------------------------------------- + AGG_INLINE void copy_vline(int x, int y, + unsigned len, + const color_type& c) + { + do + { + pix_value_ptr(x, y++, 1)->set(c); + } + while (--len); + } + + + //-------------------------------------------------------------------- + void blend_hline(int x, int y, + unsigned len, + const color_type& c, + int8u cover) + { + if (!c.is_transparent()) + { + pixel_type* p = pix_value_ptr(x, y, len); + + if (c.is_opaque() && cover == cover_mask) + { + do + { + p->set(c); + p = p->next(); + } + while (--len); + } + else + { + do + { + blend_pix(p, c, cover); + p = p->next(); + } + while (--len); + } + } + } + + + //-------------------------------------------------------------------- + void blend_vline(int x, int y, + unsigned len, + const color_type& c, + int8u cover) + { + if (!c.is_transparent()) + { + if (c.is_opaque() && cover == cover_mask) + { + do + { + pix_value_ptr(x, y++, 1)->set(c); + } + while (--len); + } + else + { + do + { + blend_pix(pix_value_ptr(x, y++, 1), c, cover); + } + while (--len); + } + } + } + + + //-------------------------------------------------------------------- + void blend_solid_hspan(int x, int y, + unsigned len, + const color_type& c, + const int8u* covers) + { + if (!c.is_transparent()) + { + pixel_type* p = pix_value_ptr(x, y, len); + + do + { + if (c.is_opaque() && *covers == cover_mask) + { + p->set(c); + } + else + { + blend_pix(p, c, *covers); + } + p = p->next(); + ++covers; + } + while (--len); + } + } + + + //-------------------------------------------------------------------- + void blend_solid_vspan(int x, int y, + unsigned len, + const color_type& c, + const int8u* covers) + { + if (!c.is_transparent()) + { + do + { + pixel_type* p = pix_value_ptr(x, y++, 1); + + if (c.is_opaque() && *covers == cover_mask) + { + p->set(c); + } + else + { + blend_pix(p, c, *covers); + } + ++covers; + } + while (--len); + } + } + + + //-------------------------------------------------------------------- + void copy_color_hspan(int x, int y, + unsigned len, + const color_type* colors) + { + pixel_type* p = pix_value_ptr(x, y, len); + + do + { + p->set(*colors++); + p = p->next(); + } + while (--len); + } + + + //-------------------------------------------------------------------- + void copy_color_vspan(int x, int y, + unsigned len, + const color_type* colors) + { + do + { + pix_value_ptr(x, y++, 1)->set(*colors++); + } + while (--len); + } + + + //-------------------------------------------------------------------- + void blend_color_hspan(int x, int y, + unsigned len, + const color_type* colors, + const int8u* covers, + int8u cover) + { + pixel_type* p = pix_value_ptr(x, y, len); + + if (covers) + { + do + { + copy_or_blend_pix(p, *colors++, *covers++); + p = p->next(); + } + while (--len); + } + else + { + if (cover == cover_mask) + { + do + { + copy_or_blend_pix(p, *colors++); + p = p->next(); + } + while (--len); + } + else + { + do + { + copy_or_blend_pix(p, *colors++, cover); + p = p->next(); + } + while (--len); + } + } + } + + + //-------------------------------------------------------------------- + void blend_color_vspan(int x, int y, + unsigned len, + const color_type* colors, + const int8u* covers, + int8u cover) + { + if (covers) + { + do + { + copy_or_blend_pix(pix_value_ptr(x, y++, 1), *colors++, *covers++); + } + while (--len); + } + else + { + if (cover == cover_mask) + { + do + { + copy_or_blend_pix(pix_value_ptr(x, y++, 1), *colors++); + } + while (--len); + } + else + { + do + { + copy_or_blend_pix(pix_value_ptr(x, y++, 1), *colors++, cover); + } + while (--len); + } + } + } + + //-------------------------------------------------------------------- + template<class Function> void for_each_pixel(Function f) + { + unsigned y; + for (y = 0; y < height(); ++y) + { + row_data r = m_rbuf->row(y); + if (r.ptr) + { + unsigned len = r.x2 - r.x1 + 1; + pixel_type* p = pix_value_ptr(r.x1, y, len); + do + { + f(p->c); + p = p->next(); + } + while (--len); + } + } + } + + //-------------------------------------------------------------------- + template<class GammaLut> void apply_gamma_dir(const GammaLut& g) + { + for_each_pixel(apply_gamma_dir_gray<color_type, GammaLut>(g)); + } + + //-------------------------------------------------------------------- + template<class GammaLut> void apply_gamma_inv(const GammaLut& g) + { + for_each_pixel(apply_gamma_inv_gray<color_type, GammaLut>(g)); + } + + //-------------------------------------------------------------------- + template<class RenBuf2> + void copy_from(const RenBuf2& from, + int xdst, int ydst, + int xsrc, int ysrc, + unsigned len) + { + if (const int8u* p = from.row_ptr(ysrc)) + { + memmove(m_rbuf->row_ptr(xdst, ydst, len) + xdst * pix_width, + p + xsrc * pix_width, + len * pix_width); + } + } + + //-------------------------------------------------------------------- + // Blend from single color, using grayscale surface as alpha channel. + template<class SrcPixelFormatRenderer> + void blend_from_color(const SrcPixelFormatRenderer& from, + const color_type& color, + int xdst, int ydst, + int xsrc, int ysrc, + unsigned len, + int8u cover) + { + typedef typename SrcPixelFormatRenderer::pixel_type src_pixel_type; + typedef typename SrcPixelFormatRenderer::color_type src_color_type; + + if (const src_pixel_type* psrc = from.pix_value_ptr(xsrc, ysrc)) + { + pixel_type* pdst = pix_value_ptr(xdst, ydst, len); + + do + { + copy_or_blend_pix(pdst, color, src_color_type::scale_cover(cover, psrc->c[0])); + psrc = psrc->next(); + pdst = pdst->next(); + } + while (--len); + } + } + + //-------------------------------------------------------------------- + // Blend from color table, using grayscale surface as indexes into table. + // Obviously, this only works for integer value types. + template<class SrcPixelFormatRenderer> + void blend_from_lut(const SrcPixelFormatRenderer& from, + const color_type* color_lut, + int xdst, int ydst, + int xsrc, int ysrc, + unsigned len, + int8u cover) + { + typedef typename SrcPixelFormatRenderer::pixel_type src_pixel_type; + + if (const src_pixel_type* psrc = from.pix_value_ptr(xsrc, ysrc)) + { + pixel_type* pdst = pix_value_ptr(xdst, ydst, len); + + do + { + copy_or_blend_pix(pdst, color_lut[psrc->c[0]], cover); + psrc = psrc->next(); + pdst = pdst->next(); + } + while (--len); + } + } + + private: + rbuf_type* m_rbuf; + }; + + typedef blender_gray<gray8> blender_gray8; + typedef blender_gray<sgray8> blender_sgray8; + typedef blender_gray<gray16> blender_gray16; + typedef blender_gray<gray32> blender_gray32; + + typedef blender_gray_pre<gray8> blender_gray8_pre; + typedef blender_gray_pre<sgray8> blender_sgray8_pre; + typedef blender_gray_pre<gray16> blender_gray16_pre; + typedef blender_gray_pre<gray32> blender_gray32_pre; + + typedef pixfmt_alpha_blend_gray<blender_gray8, rendering_buffer> pixfmt_gray8; + typedef pixfmt_alpha_blend_gray<blender_sgray8, rendering_buffer> pixfmt_sgray8; + typedef pixfmt_alpha_blend_gray<blender_gray16, rendering_buffer> pixfmt_gray16; + typedef pixfmt_alpha_blend_gray<blender_gray32, rendering_buffer> pixfmt_gray32; + + typedef pixfmt_alpha_blend_gray<blender_gray8_pre, rendering_buffer> pixfmt_gray8_pre; + typedef pixfmt_alpha_blend_gray<blender_sgray8_pre, rendering_buffer> pixfmt_sgray8_pre; + typedef pixfmt_alpha_blend_gray<blender_gray16_pre, rendering_buffer> pixfmt_gray16_pre; + typedef pixfmt_alpha_blend_gray<blender_gray32_pre, rendering_buffer> pixfmt_gray32_pre; +} + +#endif + |