virtual void on_draw()
{
typedef agg::pixfmt_bgra32 pixfmt;
typedef agg::renderer_base<pixfmt> renderer_base;
typedef agg::renderer_scanline_aa_solid<renderer_base> renderer_solid;
pixfmt pixf(rbuf_window());
renderer_base rb(pixf);
renderer_solid ren(rb);
rb.clear(agg::rgba(1,1,1));
agg::rasterizer_scanline_aa<> ras;
agg::scanline_p8 sl;
agg::trans_affine mtx;
ras.gamma(agg::gamma_power(m_gamma.value()));
mtx *= agg::trans_affine_translation((m_min_x + m_max_x) * -0.5, (m_min_y + m_max_y) * -0.5);
mtx *= agg::trans_affine_scaling(m_scale.value());
mtx *= agg::trans_affine_rotation(agg::deg2rad(m_rotate.value()));
mtx *= agg::trans_affine_translation((m_min_x + m_max_x) * 0.5 + m_x, (m_min_y + m_max_y) * 0.5 + m_y + 30);
m_path.expand(m_expand.value());
start_timer();
m_path.render(ras, sl, ren, mtx, rb.clip_box(), 1.0);
double tm = elapsed_time();
unsigned vertex_count = m_path.vertex_count();
ras.gamma(agg::gamma_none());
agg::render_ctrl(ras, sl, rb, m_expand);
agg::render_ctrl(ras, sl, rb, m_gamma);
agg::render_ctrl(ras, sl, rb, m_scale);
agg::render_ctrl(ras, sl, rb, m_rotate);
char buf[128];
agg::gsv_text t;
t.size(10.0);
t.flip(true);
agg::conv_stroke<agg::gsv_text> pt(t);
pt.width(1.5);
sprintf(buf, "Vertices=%d Time=%.3f ms", vertex_count, tm);
t.start_point(10.0, 40.0);
t.text(buf);
ras.add_path(pt);
ren.color(agg::rgba(0,0,0));
agg::render_scanlines(ras, sl, ren);
//agg::gamma_lut<> gl(m_gamma.value());
//unsigned x, y;
//unsigned w = unsigned(width());
//unsigned h = unsigned(height());
//for(y = 0; y < h; y++)
//{
// for(x = 0; x < w; x++)
// {
// agg::rgba8 c = rb.pixel(x, y);
// c.r = gl.inv(c.r);
// c.g = gl.inv(c.g);
// c.b = gl.inv(c.b);
// rb.copy_pixel(x, y, c);
// }
//}
}
//------------------------------------------------------------------------
virtual void on_draw()
{
double width = rbuf_window().width();
double height = rbuf_window().height();
typedef agg::renderer_base<pixfmt> renderer_base;
typedef agg::renderer_base<pixfmt_pre> renderer_base_pre;
pixfmt pixf(rbuf_window());
pixfmt_pre pixf_pre(rbuf_window());
renderer_base rb(pixf);
renderer_base_pre rb_pre(pixf_pre);
rb.clear(agg::rgba(1.0, 1.0, 1.0));
agg::trans_affine polygon_mtx;
polygon_mtx *= agg::trans_affine_translation(-m_polygon_cx, -m_polygon_cy);
polygon_mtx *= agg::trans_affine_rotation(m_polygon_angle.value() * agg::pi / 180.0);
polygon_mtx *= agg::trans_affine_scaling(m_polygon_scale.value());
polygon_mtx *= agg::trans_affine_translation(m_polygon_cx, m_polygon_cy);
double r = initial_width() / 3.0 - 8.0;
create_star(m_polygon_cx, m_polygon_cy, r, r / 1.45, 14);
agg::conv_transform<agg::path_storage> tr(m_ps, polygon_mtx);
typedef agg::wrap_mode_reflect_auto_pow2 wrap_x_type;
typedef agg::wrap_mode_reflect_auto_pow2 wrap_y_type;
typedef agg::image_accessor_wrap<pixfmt,
wrap_x_type,
wrap_y_type> img_source_type;
typedef agg::span_pattern_rgba<img_source_type> span_gen_type;
unsigned offset_x = 0;
unsigned offset_y = 0;
if(m_tie_pattern.status())
{
offset_x = unsigned(width-m_polygon_cx);
offset_y = unsigned(height-m_polygon_cy);
}
agg::span_allocator<color_type> sa;
pixfmt img_pixf(m_pattern_rbuf);
img_source_type img_src(img_pixf);
span_gen_type sg(img_src, offset_x, offset_y);
// Alpha is meaningful for RGB only because RGBA has its own
sg.alpha(span_gen_type::value_type(m_pattern_alpha.value() * 255.0));
m_ras.add_path(tr);
agg::render_scanlines_aa(m_ras, m_sl, rb_pre, sa, sg);
agg::render_ctrl(m_ras, m_sl, rb, m_polygon_angle);
agg::render_ctrl(m_ras, m_sl, rb, m_polygon_scale);
agg::render_ctrl(m_ras, m_sl, rb, m_pattern_angle);
agg::render_ctrl(m_ras, m_sl, rb, m_pattern_size);
agg::render_ctrl(m_ras, m_sl, rb, m_pattern_alpha);
agg::render_ctrl(m_ras, m_sl, rb, m_rotate_polygon);
agg::render_ctrl(m_ras, m_sl, rb, m_rotate_pattern);
agg::render_ctrl(m_ras, m_sl, rb, m_tie_pattern);
}
virtual void on_draw()
{
pixfmt pixf(rbuf_window());
renderer_base rb(pixf);
renderer_solid r(rb);
rb.clear(agg::rgba(1, 1, 1));
scanline_type sl;
agg::rasterizer_scanline_aa<> ras;
m_poly.close(m_close.status());
agg::simple_polygon_vertex_source path(m_poly.polygon(),
m_poly.num_points(),
false,
m_close.status());
typedef agg::conv_bspline<agg::simple_polygon_vertex_source> conv_bspline_type;
conv_bspline_type bspline(path);
bspline.interpolation_step(1.0 / m_num_points.value());
agg::trans_single_path tcurve;
tcurve.add_path(bspline);
tcurve.preserve_x_scale(m_preserve_x_scale.status());
if(m_fixed_len.status()) tcurve.base_length(1120);
typedef agg::conv_curve<font_manager_type::path_adaptor_type> conv_font_curve_type;
typedef agg::conv_segmentator<conv_font_curve_type> conv_font_segm_type;
typedef agg::conv_transform<conv_font_segm_type, agg::trans_single_path> conv_font_trans_type;
conv_font_curve_type fcurves(m_fman.path_adaptor());
conv_font_segm_type fsegm(fcurves);
conv_font_trans_type ftrans(fsegm, tcurve);
fsegm.approximation_scale(3.0);
fcurves.approximation_scale(2.0);
m_feng.height(40.0);
//m_feng.italic(true);
if(m_feng.create_font("Times New Roman", agg::glyph_ren_outline))
{
double x = 0.0;
double y = 3.0;
const char* p = text;
while(*p)
{
const agg::glyph_cache* glyph = m_fman.glyph(*p);
if(glyph)
{
if(x > tcurve.total_length()) break;
m_fman.add_kerning(&x, &y);
m_fman.init_embedded_adaptors(glyph, x, y);
if(glyph->data_type == agg::glyph_data_outline)
{
ras.reset();
ras.add_path(ftrans);
r.color(agg::rgba8(0, 0, 0));
agg::render_scanlines(ras, sl, r);
}
// increment pen position
x += glyph->advance_x;
y += glyph->advance_y;
}
++p;
}
}
typedef agg::conv_stroke<conv_bspline_type> conv_stroke_type;
conv_stroke_type stroke(bspline);
stroke.width(2.0);
r.color(agg::rgba8(170, 50, 20, 100));
ras.add_path(stroke);
agg::render_scanlines(ras, sl, r);
//--------------------------
// Render the "poly" tool and controls
r.color(agg::rgba(0, 0.3, 0.5, 0.3));
ras.add_path(m_poly);
agg::render_scanlines(ras, sl, r);
agg::render_ctrl(ras, sl, rb, m_close);
agg::render_ctrl(ras, sl, rb, m_preserve_x_scale);
agg::render_ctrl(ras, sl, rb, m_fixed_len);
agg::render_ctrl(ras, sl, rb, m_animate);
agg::render_ctrl(ras, sl, rb, m_num_points);
//--------------------------
}
void grid_renderer<T>::process(line_pattern_symbolizer const& sym,
mapnik::feature_impl & feature,
proj_transform const& prj_trans)
{
std::string filename = get<std::string>(sym, keys::file, feature, common_.vars_);
if (filename.empty()) return;
boost::optional<mapnik::marker_ptr> mark = marker_cache::instance().find(filename, true);
if (!mark) return;
if (!(*mark)->is_bitmap())
{
MAPNIK_LOG_DEBUG(agg_renderer) << "agg_renderer: Only images (not '" << filename << "') are supported in the line_pattern_symbolizer";
return;
}
boost::optional<image_ptr> pat = (*mark)->get_bitmap_data();
if (!pat) return;
bool clip = get<value_bool>(sym, keys::clip, feature, common_.vars_, true);
double offset = get<value_double>(sym, keys::offset, feature, common_.vars_, 0.0);
double simplify_tolerance = get<value_double>(sym, keys::simplify_tolerance, feature, common_.vars_, 0.0);
double smooth = get<value_double>(sym, keys::smooth, feature, common_.vars_, false);
using pixfmt_type = typename grid_renderer_base_type::pixfmt_type;
using color_type = typename grid_renderer_base_type::pixfmt_type::color_type;
using renderer_type = agg::renderer_scanline_bin_solid<grid_renderer_base_type>;
using conv_types = boost::mpl::vector<clip_line_tag, transform_tag,
offset_transform_tag, affine_transform_tag,
simplify_tag, smooth_tag, stroke_tag>;
agg::scanline_bin sl;
grid_rendering_buffer buf(pixmap_.raw_data(), common_.width_, common_.height_, common_.width_);
pixfmt_type pixf(buf);
grid_renderer_base_type renb(pixf);
renderer_type ren(renb);
ras_ptr->reset();
int stroke_width = (*pat)->width();
agg::trans_affine tr;
auto transform = get_optional<transform_type>(sym, keys::geometry_transform);
if (transform)
{
evaluate_transform(tr, feature, common_.vars_, *transform, common_.scale_factor_);
}
box2d<double> clipping_extent = common_.query_extent_;
if (clip)
{
double padding = (double)(common_.query_extent_.width()/pixmap_.width());
double half_stroke = stroke_width/2.0;
if (half_stroke > 1)
padding *= half_stroke;
if (std::fabs(offset) > 0)
padding *= std::fabs(offset) * 1.2;
padding *= common_.scale_factor_;
clipping_extent.pad(padding);
}
// to avoid the complexity of using an agg pattern filter instead
// we create a line_symbolizer in order to fake the pattern
line_symbolizer line;
put<value_double>(line, keys::stroke_width, value_double(stroke_width));
// TODO: really should pass the offset to the fake line too, but
// this wasn't present in the previous version and makes the test
// fail - in this case, probably the test should be updated.
//put<value_double>(line, keys::offset, value_double(offset));
put<value_double>(line, keys::simplify_tolerance, value_double(simplify_tolerance));
put<value_double>(line, keys::smooth, value_double(smooth));
vertex_converter<box2d<double>, grid_rasterizer, line_symbolizer,
CoordTransform, proj_transform, agg::trans_affine, conv_types, feature_impl>
converter(clipping_extent,*ras_ptr,line,common_.t_,prj_trans,tr,feature,common_.vars_,common_.scale_factor_);
if (clip) converter.set<clip_line_tag>(); // optional clip (default: true)
converter.set<transform_tag>(); // always transform
if (std::fabs(offset) > 0.0) converter.set<offset_transform_tag>(); // parallel offset
converter.set<affine_transform_tag>(); // optional affine transform
if (simplify_tolerance > 0.0) converter.set<simplify_tag>(); // optional simplify converter
if (smooth > 0.0) converter.set<smooth_tag>(); // optional smooth converter
converter.set<stroke_tag>(); //always stroke
for (geometry_type & geom : feature.paths())
{
if (geom.size() > 1)
{
converter.apply(geom);
}
}
// render id
ren.color(color_type(feature.id()));
agg::render_scanlines(*ras_ptr, sl, ren);
// add feature properties to grid cache
pixmap_.add_feature(feature);
}
void grid_renderer<T>::process(polygon_pattern_symbolizer const& sym,
mapnik::feature_impl & feature,
proj_transform const& prj_trans)
{
std::string filename = get<std::string>(sym, keys::file, feature, common_.vars_);
if (filename.empty()) return;
boost::optional<mapnik::marker_ptr> mark = marker_cache::instance().find(filename, true);
if (!mark) return;
if (!(*mark)->is_bitmap())
{
MAPNIK_LOG_DEBUG(agg_renderer) << "agg_renderer: Only images (not '" << filename << "') are supported in the line_pattern_symbolizer";
return;
}
boost::optional<image_ptr> pat = (*mark)->get_bitmap_data();
if (!pat) return;
ras_ptr->reset();
bool clip = get<value_bool>(sym, keys::clip, feature, common_.vars_, true);
double simplify_tolerance = get<value_double>(sym, keys::simplify_tolerance, feature, common_.vars_, 0.0);
double smooth = get<value_double>(sym, keys::smooth, feature, common_.vars_, false);
agg::trans_affine tr;
auto transform = get_optional<transform_type>(sym, keys::geometry_transform);
if (transform)
{
evaluate_transform(tr, feature, common_.vars_, *transform, common_.scale_factor_);
}
using conv_types = boost::mpl::vector<clip_poly_tag,transform_tag,affine_transform_tag,smooth_tag>;
vertex_converter<box2d<double>, grid_rasterizer, polygon_pattern_symbolizer,
CoordTransform, proj_transform, agg::trans_affine, conv_types, feature_impl>
converter(common_.query_extent_,*ras_ptr,sym,common_.t_,prj_trans,tr,feature,common_.vars_,common_.scale_factor_);
if (prj_trans.equal() && clip) converter.set<clip_poly_tag>(); //optional clip (default: true)
converter.set<transform_tag>(); //always transform
converter.set<affine_transform_tag>();
if (simplify_tolerance > 0.0) converter.set<simplify_tag>(); // optional simplify converter
if (smooth > 0.0) converter.set<smooth_tag>(); // optional smooth converter
for ( geometry_type & geom : feature.paths())
{
if (geom.size() > 2)
{
converter.apply(geom);
}
}
using pixfmt_type = typename grid_renderer_base_type::pixfmt_type;
using color_type = typename grid_renderer_base_type::pixfmt_type::color_type;
using renderer_type = agg::renderer_scanline_bin_solid<grid_renderer_base_type>;
grid_rendering_buffer buf(pixmap_.raw_data(), common_.width_, common_.height_, common_.width_);
pixfmt_type pixf(buf);
grid_renderer_base_type renb(pixf);
renderer_type ren(renb);
// render id
ren.color(color_type(feature.id()));
agg::scanline_bin sl;
ras_ptr->filling_rule(agg::fill_even_odd);
agg::render_scanlines(*ras_ptr, sl, ren);
// add feature properties to grid cache
pixmap_.add_feature(feature);
}
virtual void on_draw()
{
struct font_type
{
const agg::int8u* font;
const char* name;
}
fonts[] =
{
{ agg::gse4x6, "gse4x6" },
{ agg::gse4x8, "gse4x8" },
{ agg::gse5x7, "gse5x7" },
{ agg::gse5x9, "gse5x9" },
{ agg::gse6x9, "gse6x9" },
{ agg::gse6x12, "gse6x12" },
{ agg::gse7x11, "gse7x11" },
{ agg::gse7x11_bold, "gse7x11_bold" },
{ agg::gse7x15, "gse7x15" },
{ agg::gse7x15_bold, "gse7x15_bold" },
{ agg::gse8x16, "gse8x16" },
{ agg::gse8x16_bold, "gse8x16_bold" },
{ agg::mcs11_prop, "mcs11_prop" },
{ agg::mcs11_prop_condensed, "mcs11_prop_condensed" },
{ agg::mcs12_prop, "mcs12_prop" },
{ agg::mcs13_prop, "mcs13_prop" },
{ agg::mcs5x10_mono, "mcs5x10_mono" },
{ agg::mcs5x11_mono, "mcs5x11_mono" },
{ agg::mcs6x10_mono, "mcs6x10_mono" },
{ agg::mcs6x11_mono, "mcs6x11_mono" },
{ agg::mcs7x12_mono_high, "mcs7x12_mono_high" },
{ agg::mcs7x12_mono_low, "mcs7x12_mono_low" },
{ agg::verdana12, "verdana12" },
{ agg::verdana12_bold, "verdana12_bold" },
{ agg::verdana13, "verdana13" },
{ agg::verdana13_bold, "verdana13_bold" },
{ agg::verdana14, "verdana14" },
{ agg::verdana14_bold, "verdana14_bold" },
{ agg::verdana16, "verdana16" },
{ agg::verdana16_bold, "verdana16_bold" },
{ agg::verdana17, "verdana17" },
{ agg::verdana17_bold, "verdana17_bold" },
{ agg::verdana18, "verdana18" },
{ agg::verdana18_bold, "verdana18_bold" },
0, 0
};
glyph_gen glyph(0);
pixfmt pixf(rbuf_window());
ren_base rb(pixf);
rb.clear(agg::rgba(1,1,1));
agg::renderer_raster_htext_solid<ren_base, glyph_gen> rt(rb, glyph);
int i;
double y = 5;
rt.color(agg::rgba(0,0,0));
for(i = 0; fonts[i].font; i++)
{
char buf[100];
strcpy(buf, "A quick brown fox jumps over the lazy dog 0123456789: ");
strcat(buf, fonts[i].name);
// Testing "wide-char"
unsigned wbuf[100];
unsigned* wp = wbuf;
const char* p = buf;
while(*p) *wp++ = *(unsigned char*)p++;
*wp++ = 0;
glyph.font(fonts[i].font);
rt.render_text(5, y, wbuf, !flip_y());
y += glyph.height() + 1;
}
// Rendering raster text with a custom span generator, gradient
typedef agg::span_interpolator_linear<> interpolator_type;
typedef agg::span_allocator<agg::rgba8> span_alloc_type;
typedef agg::span_gradient<agg::rgba8,
interpolator_type,
gradient_sine_repeat_adaptor<agg::gradient_circle>,
agg::gradient_linear_color<agg::rgba8> > span_gen_type;
typedef agg::renderer_scanline_aa<ren_base,
span_alloc_type,
span_gen_type> ren_type;
agg::trans_affine mtx;
gradient_sine_repeat_adaptor<agg::gradient_circle> grad_func;
grad_func.periods(5);
agg::gradient_linear_color<agg::rgba8> color_func;
color_func.colors(agg::rgba(1.0,0,0), agg::rgba(0,0.5,0));
interpolator_type inter(mtx);
span_alloc_type sa;
span_gen_type sg(inter, grad_func, color_func, 0, 150.0);
ren_type ren(rb, sa, sg);
agg::renderer_raster_htext<ren_type, glyph_gen> rt2(ren, glyph);
rt2.render_text(5, 465, (unsigned char*)"RADIAL REPEATING GRADIENT: A quick brown fox jumps over the lazy dog", !flip_y());
}
void composite(T1 & im, T2 & im2, composite_mode_e mode)
{
typedef agg::rgba8 color;
typedef agg::order_bgra order;
typedef agg::pixel32_type pixel_type;
typedef agg::comp_op_adaptor_rgba<color, order> blender_type;
typedef agg::pixfmt_custom_blend_rgba<blender_type, agg::rendering_buffer> pixfmt_type;
typedef agg::renderer_base<pixfmt_type> renderer_type;
typedef agg::comp_op_adaptor_rgba<color, order> blender_type;
typedef agg::renderer_base<pixfmt_type> renderer_type;
agg::rendering_buffer source(im.getBytes(),im.width(),im.height(),im.width() * 4);
agg::rendering_buffer mask(im2.getBytes(),im2.width(),im2.height(),im2.width() * 4);
agg::pixfmt_custom_blend_rgba<blender_type, agg::rendering_buffer> pixf(source);
agg::pixfmt_custom_blend_rgba<blender_type, agg::rendering_buffer> pixf_mask(mask);
switch(mode)
{
case clear :
pixf.comp_op(agg::comp_op_clear);
break;
case src:
pixf.comp_op(agg::comp_op_src);
break;
case dst:
pixf.comp_op(agg::comp_op_dst);
break;
case src_over:
pixf.comp_op(agg::comp_op_src_over);
break;
case dst_over:
pixf.comp_op(agg::comp_op_dst_over);
break;
case src_in:
pixf.comp_op(agg::comp_op_src_in);
break;
case dst_in:
pixf.comp_op(agg::comp_op_dst_in);
break;
case src_out:
pixf.comp_op(agg::comp_op_src_out);
break;
case dst_out:
pixf.comp_op(agg::comp_op_dst_out);
break;
case src_atop:
pixf.comp_op(agg::comp_op_src_atop);
break;
case dst_atop:
pixf.comp_op(agg::comp_op_dst_atop);
break;
case _xor:
pixf.comp_op(agg::comp_op_xor);
break;
case plus:
pixf.comp_op(agg::comp_op_plus);
break;
case minus:
pixf.comp_op(agg::comp_op_minus);
break;
case multiply:
pixf.comp_op(agg::comp_op_multiply);
break;
case screen:
pixf.comp_op(agg::comp_op_screen);
break;
case overlay:
pixf.comp_op(agg::comp_op_overlay);
break;
case darken:
pixf.comp_op(agg::comp_op_darken);
break;
case lighten:
pixf.comp_op(agg::comp_op_lighten);
break;
case color_dodge:
pixf.comp_op(agg::comp_op_color_dodge);
break;
case color_burn:
pixf.comp_op(agg::comp_op_color_burn);
break;
case hard_light:
pixf.comp_op(agg::comp_op_hard_light);
break;
case soft_light:
pixf.comp_op(agg::comp_op_soft_light);
break;
case difference:
pixf.comp_op(agg::comp_op_difference);
break;
case exclusion:
pixf.comp_op(agg::comp_op_exclusion);
break;
case contrast:
pixf.comp_op(agg::comp_op_contrast);
break;
case invert:
pixf.comp_op(agg::comp_op_invert);
break;
case invert_rgb:
pixf.comp_op(agg::comp_op_invert_rgb);
break;
default:
break;
}
renderer_type ren(pixf);
agg::renderer_base<pixfmt_type> rb(pixf);
rb.blend_from(pixf_mask,0,0,0,255);
}
void agg_renderer<T>::process(polygon_pattern_symbolizer const& sym,
Feature const& feature,
proj_transform const& prj_trans)
{
typedef coord_transform2<CoordTransform,geometry_type> path_type;
typedef agg::renderer_base<agg::pixfmt_rgba32_plain> ren_base;
typedef agg::wrap_mode_repeat wrap_x_type;
typedef agg::wrap_mode_repeat wrap_y_type;
typedef agg::pixfmt_alpha_blend_rgba<agg::blender_rgba32,
agg::row_accessor<agg::int8u>, agg::pixel32_type> rendering_buffer;
typedef agg::image_accessor_wrap<rendering_buffer,
wrap_x_type,
wrap_y_type> img_source_type;
typedef agg::span_pattern_rgba<img_source_type> span_gen_type;
typedef agg::renderer_scanline_aa<ren_base,
agg::span_allocator<agg::rgba8>,
span_gen_type> renderer_type;
agg::rendering_buffer buf(pixmap_.raw_data(),width_,height_, width_ * 4);
agg::pixfmt_rgba32_plain pixf(buf);
ren_base renb(pixf);
agg::scanline_u8 sl;
ras_ptr->reset();
ras_ptr->gamma(agg::gamma_linear(0.0, sym.get_gamma()));
std::string filename = path_processor_type::evaluate( *sym.get_filename(), feature);
boost::optional<mapnik::marker_ptr> marker;
if ( !filename.empty() )
{
marker = marker_cache::instance()->find(filename, true);
}
else
{
std::clog << "### Warning: file not found: " << filename << "\n";
}
if (!marker || !(*marker)->is_bitmap()) return;
boost::optional<image_ptr> pat = (*marker)->get_bitmap_data();
if (!pat) return;
unsigned w=(*pat)->width();
unsigned h=(*pat)->height();
agg::row_accessor<agg::int8u> pattern_rbuf((agg::int8u*)(*pat)->getBytes(),w,h,w*4);
agg::span_allocator<agg::rgba8> sa;
agg::pixfmt_alpha_blend_rgba<agg::blender_rgba32,
agg::row_accessor<agg::int8u>, agg::pixel32_type> pixf_pattern(pattern_rbuf);
img_source_type img_src(pixf_pattern);
unsigned num_geometries = feature.num_geometries();
pattern_alignment_e align = sym.get_alignment();
unsigned offset_x=0;
unsigned offset_y=0;
if (align == LOCAL_ALIGNMENT)
{
double x0=0,y0=0;
if (num_geometries>0)
{
path_type path(t_,feature.get_geometry(0),prj_trans);
path.vertex(&x0,&y0);
}
offset_x = unsigned(width_-x0);
offset_y = unsigned(height_-y0);
}
span_gen_type sg(img_src, offset_x, offset_y);
renderer_type rp(renb,sa, sg);
metawriter_with_properties writer = sym.get_metawriter();
for (unsigned i=0;i<num_geometries;++i)
{
geometry_type const& geom = feature.get_geometry(i);
if (geom.num_points() > 2)
{
path_type path(t_,geom,prj_trans);
ras_ptr->add_path(path);
if (writer.first) writer.first->add_polygon(path, feature, t_, writer.second);
}
}
agg::render_scanlines(*ras_ptr, sl, rp);
}
void Display::impl::draw()
{
SDL_PumpEvents();
pixfmt pixf(rbwindow);
pixfmt pixf_pre(rbwindow);
base_renderer rb(pixf);
base_renderer rb_pre(pixf_pre);
solid_renderer rs(rb);
renderer_bin rbin(rb);
agg::scanline_u8 sl;
agg::rasterizer_scanline_aa<> pf;
if (fondo)
SDL_BlitSurface(fondo.get(), 0, window.get(), 0);
else
rb.clear(agg::rgba(0, 0, 0));
agg::glyph_rendering gren = agg::glyph_ren_agg_gray8;
if(m_feng.load_font("timesi.ttf", 0, gren)) {
m_feng.hinting(1);
m_feng.flip_y(1);
for (impl::it_tsprites it = textSprites.begin()
,end = textSprites.end()
;it!= end
;++it)
{
TextSprite::impl* tsimpl = *it;
if (tsimpl->visible) {
m_feng.height(tsimpl->size);
m_feng.width(tsimpl->size);
m_contour.width(-tsimpl->size * tsimpl->size * 0.05);
double x = tsimpl->x;
double y0 = tsimpl->y + tsimpl->size;
double y = y0;
for (std::string::iterator letra = tsimpl->caption.begin(), last = tsimpl->caption.end(); letra != last; ++letra) {
const agg::glyph_cache* glyph = m_fman.glyph(*letra);
if (glyph) {
m_fman.init_embedded_adaptors(glyph, x, y);
rs.color(agg::rgba8(0, 0, 0));
agg::render_scanlines(m_fman.gray8_adaptor(),
m_fman.gray8_scanline(),
rs);
x += glyph->advance_x;
y += glyph->advance_y;
}
}
}
}
}
for (impl::it_sprites it = sprites.begin()
,end = sprites.end()
;it!= end
;++it)
{
Sprite::impl* simpl = *it;
if (simpl->visible)
{
agg::rendering_buffer buffer((unsigned char*)simpl->surface->pixels,
simpl->surface->w, simpl->surface->h, simpl->surface->pitch);
interpolator_type interpolator;
span_alloc_type sa;
span_gen_type sg(sa, buffer, agg::rgba_pre(0, 0, 0, 0), interpolator);
renderer_type ri;
agg::rounded_rect rec(0, 0, buffer.width(), buffer.height(), 0);
agg::trans_affine src_mtx;
src_mtx *= agg::trans_affine_translation(simpl->x, simpl->y);
agg::trans_affine img_mtx = src_mtx;
img_mtx.invert();
interpolator.transformer(img_mtx);
ri.attach(rb_pre, sg);
agg::rounded_rect rrect(0, 0, buffer.width(), buffer.height(), 0);
agg::conv_transform<agg::rounded_rect> tr(rrect, src_mtx);
pf.add_path(tr);
agg::render_scanlines(pf, sl, ri);
}
}
SDL_BlitSurface(window.get(), 0, screen, 0);
SDL_Flip(screen);
}
virtual void on_draw()
{
#if ENABLE_GAMMA_CTRL
typedef agg::gamma_lut<agg::int8u, agg::int8u, 8, 8> gamma_type;
typedef pixfmt_gamma<gamma_type> pixfmt_type;
typedef agg::renderer_base<pixfmt_type> ren_base;
double g = m_gamma.value();
gamma_type gamma(g);
pixfmt_type pixf(rbuf_window(), gamma);
#else
typedef agg::renderer_base<pixfmt> ren_base;
pixfmt pixf(rbuf_window());
#endif
ren_base renb(pixf);
renb.clear(agg::rgba(1, 1, 1));
double dark = 1.0 - m_contrast.value();
double light = m_contrast.value();
renb.copy_bar(0,0,int(width())/2, int(height()), agg::rgba(dark,dark,dark));
renb.copy_bar(int(width())/2+1,0, int(width()), int(height()), agg::rgba(light,light,light));
renb.copy_bar(0,int(height())/2+1, int(width()), int(height()), agg::rgba(1.0,dark,dark));
agg::rasterizer_scanline_aa<> ras;
agg::scanline_u8 sl;
agg::path_storage path;
#if ENABLE_GAMMA_CTRL
unsigned i;
double x = (width() - 256.0) / 2.0;
double y = 50.0;
path.remove_all();
agg::gamma_power gp(g);
for(i = 0; i < 256; i++)
{
double v = double(i) / 255.0;
double gval = gp(v);
double dy = gval * 255.0;
if(i == 0) path.move_to(x + i, y + dy);
else path.line_to(x + i, y + dy);
}
agg::conv_stroke<agg::path_storage> gpoly(path);
gpoly.width(2.0);
ras.reset();
ras.add_path(gpoly);
agg::render_scanlines_aa_solid(ras, sl, renb, agg::srgba8(80,127,80));
#endif
agg::ellipse ell(width() / 2, height() / 2, m_rx, m_ry, 150);
agg::conv_stroke<agg::ellipse> poly(ell);
poly.width(m_thickness.value());
ras.reset();
ras.add_path(poly);
agg::render_scanlines_aa_solid(ras, sl, renb, agg::srgba8(255,0,0));
ell.init(width() / 2, height() / 2, m_rx-5.0, m_ry-5.0, 150);
ras.reset();
ras.add_path(poly);
agg::render_scanlines_aa_solid(ras, sl, renb, agg::srgba8(0,255,0));
ell.init(width() / 2, height() / 2, m_rx-10.0, m_ry-10.0, 150);
ras.reset();
ras.add_path(poly);
agg::render_scanlines_aa_solid(ras, sl, renb, agg::srgba8(0,0,255));
ell.init(width() / 2, height() / 2, m_rx-15.0, m_ry-15.0, 150);
ras.reset();
ras.add_path(poly);
agg::render_scanlines_aa_solid(ras, sl, renb, agg::srgba8(0,0,0));
ell.init(width() / 2, height() / 2, m_rx-20.0, m_ry-20.0, 150);
ras.reset();
ras.add_path(poly);
agg::render_scanlines_aa_solid(ras, sl, renb, agg::srgba8(255,255,255));
agg::render_ctrl(ras, sl, renb, m_thickness);
agg::render_ctrl(ras, sl, renb, m_contrast);
#if ENABLE_GAMMA_CTRL
agg::render_ctrl(ras, sl, renb, m_gamma);
#endif
}
MAPNIK_DECL void warp_image (T & target, T const& source, proj_transform const& prj_trans,
box2d<double> const& target_ext, box2d<double> const& source_ext,
double offset_x, double offset_y, unsigned mesh_size, scaling_method_e scaling_method, double filter_factor)
{
using image_type = T;
using pixel_type = typename image_type::pixel_type;
using pixfmt_pre = typename detail::agg_scaling_traits<image_type>::pixfmt_pre;
using color_type = typename detail::agg_scaling_traits<image_type>::color_type;
using renderer_base = agg::renderer_base<pixfmt_pre>;
using interpolator_type = typename detail::agg_scaling_traits<image_type>::interpolator_type;
constexpr std::size_t pixel_size = sizeof(pixel_type);
view_transform ts(source.width(), source.height(),
source_ext);
view_transform tt(target.width(), target.height(),
target_ext, offset_x, offset_y);
std::size_t mesh_nx = std::ceil(source.width()/double(mesh_size) + 1);
std::size_t mesh_ny = std::ceil(source.height()/double(mesh_size) + 1);
image_gray64f xs(mesh_nx, mesh_ny, false);
image_gray64f ys(mesh_nx, mesh_ny, false);
// Precalculate reprojected mesh
for(std::size_t j = 0; j < mesh_ny; ++j)
{
for (std::size_t i=0; i<mesh_nx; ++i)
{
xs(i,j) = std::min(i*mesh_size,source.width());
ys(i,j) = std::min(j*mesh_size,source.height());
ts.backward(&xs(i,j), &ys(i,j));
}
}
prj_trans.backward(xs.getData(), ys.getData(), nullptr, mesh_nx*mesh_ny);
agg::rasterizer_scanline_aa<> rasterizer;
agg::scanline_bin scanline;
agg::rendering_buffer buf(target.getBytes(),
target.width(),
target.height(),
target.width() * pixel_size);
pixfmt_pre pixf(buf);
renderer_base rb(pixf);
rasterizer.clip_box(0, 0, target.width(), target.height());
agg::rendering_buffer buf_tile(
const_cast<unsigned char*>(source.getBytes()),
source.width(),
source.height(),
source.width() * pixel_size);
pixfmt_pre pixf_tile(buf_tile);
using img_accessor_type = agg::image_accessor_clone<pixfmt_pre>;
img_accessor_type ia(pixf_tile);
agg::span_allocator<color_type> sa;
// Project mesh cells into target interpolating raster inside each one
for (std::size_t j = 0; j < mesh_ny - 1; ++j)
{
for (std::size_t i = 0; i < mesh_nx - 1; ++i)
{
double polygon[8] = {xs(i,j), ys(i,j),
xs(i+1,j), ys(i+1,j),
xs(i+1,j+1), ys(i+1,j+1),
xs(i,j+1), ys(i,j+1)};
tt.forward(polygon+0, polygon+1);
tt.forward(polygon+2, polygon+3);
tt.forward(polygon+4, polygon+5);
tt.forward(polygon+6, polygon+7);
rasterizer.reset();
rasterizer.move_to_d(std::floor(polygon[0]), std::floor(polygon[1]));
rasterizer.line_to_d(std::floor(polygon[2]), std::floor(polygon[3]));
rasterizer.line_to_d(std::floor(polygon[4]), std::floor(polygon[5]));
rasterizer.line_to_d(std::floor(polygon[6]), std::floor(polygon[7]));
std::size_t x0 = i * mesh_size;
std::size_t y0 = j * mesh_size;
std::size_t x1 = (i+1) * mesh_size;
std::size_t y1 = (j+1) * mesh_size;
x1 = std::min(x1, source.width());
y1 = std::min(y1, source.height());
agg::trans_affine tr(polygon, x0, y0, x1, y1);
if (tr.is_valid())
{
interpolator_type interpolator(tr);
if (scaling_method == SCALING_NEAR)
{
using span_gen_type = typename detail::agg_scaling_traits<image_type>::span_image_filter;
span_gen_type sg(ia, interpolator);
agg::render_scanlines_bin(rasterizer, scanline, rb, sa, sg);
}
else
{
using span_gen_type = typename detail::agg_scaling_traits<image_type>::span_image_resample_affine;
agg::image_filter_lut filter;
detail::set_scaling_method(filter, scaling_method, filter_factor);
span_gen_type sg(ia, interpolator, filter);
agg::render_scanlines_bin(rasterizer, scanline, rb, sa, sg);
}
}
}
}
}
void transform_image(double angle)
{
double width = rbuf_img(0).width();
double height = rbuf_img(0).height();
pixfmt pixf(rbuf_img(0));
pixfmt_pre pixf_pre(rbuf_img(0));
renderer_base rb(pixf);
renderer_base_pre rb_pre(pixf_pre);
rb.clear(agg::rgba(1.0, 1.0, 1.0));
agg::rasterizer_scanline_aa<> ras;
agg::scanline_u8 sl;
agg::span_allocator<color_type> sa;
agg::trans_affine src_mtx;
src_mtx *= agg::trans_affine_translation(-width/2.0, -height/2.0);
src_mtx *= agg::trans_affine_rotation(angle * agg::pi / 180.0);
src_mtx *= agg::trans_affine_translation(width/2.0, height/2.0);
agg::trans_affine img_mtx = src_mtx;
img_mtx.invert();
double r = width;
if(height < r) r = height;
r *= 0.5;
r -= 4.0;
agg::ellipse ell(width / 2.0,
height / 2.0,
r, r, 200);
agg::conv_transform<agg::ellipse> tr(ell, src_mtx);
m_num_pix += r * r * agg::pi;
typedef agg::span_interpolator_linear<> interpolator_type;
interpolator_type interpolator(img_mtx);
agg::image_filter_lut filter;
bool norm = m_normalize.status();
switch(m_filters.cur_item())
{
case 0:
{
typedef agg::span_image_filter_nn<color_type,
#ifdef AGG_COMPONENT_ORDER
component_order,
#endif
interpolator_type> span_gen_type;
typedef agg::renderer_scanline_aa<renderer_base_pre,
span_gen_type> renderer_type;
span_gen_type sg(sa, rbuf_img(1), agg::rgba(0,0,0,0), interpolator);
renderer_type ri(rb_pre, sg);
ras.add_path(tr);
agg::render_scanlines(ras, sl, ri);
}
break;
case 1:
{
typedef agg::span_image_filter_bilinear<color_type,
#ifdef AGG_COMPONENT_ORDER
component_order,
#endif
interpolator_type> span_gen_type;
typedef agg::renderer_scanline_aa<renderer_base_pre,
span_gen_type> renderer_type;
span_gen_type sg(sa, rbuf_img(1), agg::rgba(0,0,0,0), interpolator);
renderer_type ri(rb_pre, sg);
ras.add_path(tr);
agg::render_scanlines(ras, sl, ri);
}
break;
case 5:
case 6:
case 7:
{
switch(m_filters.cur_item())
{
case 5: filter.calculate(agg::image_filter_hanning(), norm); break;
case 6: filter.calculate(agg::image_filter_hamming(), norm); break;
case 7: filter.calculate(agg::image_filter_hermite(), norm); break;
}
typedef agg::span_image_filter_2x2<color_type,
#ifdef AGG_COMPONENT_ORDER
component_order,
#endif
interpolator_type> span_gen_type;
typedef agg::renderer_scanline_aa<renderer_base_pre,
span_gen_type> renderer_type;
span_gen_type sg(sa, rbuf_img(1), agg::rgba(0,0,0,0), interpolator, filter);
renderer_type ri(rb_pre, sg);
ras.add_path(tr);
agg::render_scanlines(ras, sl, ri);
}
break;
case 2:
case 3:
case 4:
case 8:
case 9:
case 10:
case 11:
case 12:
case 13:
case 14:
case 15:
case 16:
{
switch(m_filters.cur_item())
{
case 2: filter.calculate(agg::image_filter_bicubic(), norm); break;
case 3: filter.calculate(agg::image_filter_spline16(), norm); break;
case 4: filter.calculate(agg::image_filter_spline36(), norm); break;
case 8: filter.calculate(agg::image_filter_kaiser(), norm); break;
case 9: filter.calculate(agg::image_filter_quadric(), norm); break;
case 10: filter.calculate(agg::image_filter_catrom(), norm); break;
case 11: filter.calculate(agg::image_filter_gaussian(), norm); break;
case 12: filter.calculate(agg::image_filter_bessel(), norm); break;
case 13: filter.calculate(agg::image_filter_mitchell(), norm); break;
case 14: filter.calculate(agg::image_filter_sinc(m_radius.value()), norm); break;
case 15: filter.calculate(agg::image_filter_lanczos(m_radius.value()), norm); break;
case 16: filter.calculate(agg::image_filter_blackman(m_radius.value()), norm); break;
}
typedef agg::span_image_filter<color_type,
#ifdef AGG_COMPONENT_ORDER
component_order,
#endif
interpolator_type> span_gen_type;
typedef agg::renderer_scanline_aa<renderer_base_pre,
span_gen_type> renderer_type;
span_gen_type sg(sa, rbuf_img(1), agg::rgba(0,0,0,0), interpolator, filter);
renderer_type ri(rb_pre, sg);
ras.add_path(tr);
agg::render_scanlines(ras, sl, ri);
}
break;
}
}
virtual void on_draw()
{
if(m_gamma.value() != m_old_gamma)
{
m_gamma_lut.gamma(m_gamma.value());
load_img(0, "spheres");
pixfmt pixf(rbuf_img(0));
pixf.apply_gamma_dir(m_gamma_lut);
m_old_gamma = m_gamma.value();
}
pixfmt pixf(rbuf_window());
pixfmt_pre pixf_pre(rbuf_window());
renderer_base rb(pixf);
renderer_base_pre rb_pre(pixf_pre);
renderer_solid r(rb);
rb.clear(agg::rgba(1, 1, 1));
if(m_trans_type.cur_item() < 2)
{
// For the affine parallelogram transformations we
// calculate the 4-th (implicit) point of the parallelogram
m_quad.xn(3) = m_quad.xn(0) + (m_quad.xn(2) - m_quad.xn(1));
m_quad.yn(3) = m_quad.yn(0) + (m_quad.yn(2) - m_quad.yn(1));
}
//--------------------------
// Render the "quad" tool and controls
g_rasterizer.add_path(m_quad);
r.color(agg::rgba(0, 0.3, 0.5, 0.1));
agg::render_scanlines(g_rasterizer, g_scanline, r);
// Prepare the polygon to rasterize. Here we need to fill
// the destination (transformed) polygon.
g_rasterizer.clip_box(0, 0, width(), height());
g_rasterizer.reset();
int b = 0;
g_rasterizer.move_to_d(m_quad.xn(0)-b, m_quad.yn(0)-b);
g_rasterizer.line_to_d(m_quad.xn(1)+b, m_quad.yn(1)-b);
g_rasterizer.line_to_d(m_quad.xn(2)+b, m_quad.yn(2)+b);
g_rasterizer.line_to_d(m_quad.xn(3)-b, m_quad.yn(3)+b);
typedef agg::span_allocator<color_type> span_alloc_type;
span_alloc_type sa;
agg::image_filter_bilinear filter_kernel;
agg::image_filter_lut filter(filter_kernel, true);
pixfmt pixf_img(rbuf_img(0));
typedef agg::image_accessor_clone<pixfmt> source_type;
source_type source(pixf_img);
start_timer();
switch(m_trans_type.cur_item())
{
case 0:
{
agg::trans_affine tr(m_quad.polygon(), g_x1, g_y1, g_x2, g_y2);
typedef agg::span_interpolator_linear<agg::trans_affine> interpolator_type;
interpolator_type interpolator(tr);
typedef image_filter_2x2_type<source_type,
interpolator_type> span_gen_type;
span_gen_type sg(source, interpolator, filter);
agg::render_scanlines_aa(g_rasterizer, g_scanline, rb_pre, sa, sg);
break;
}
case 1:
{
agg::trans_affine tr(m_quad.polygon(), g_x1, g_y1, g_x2, g_y2);
typedef agg::span_interpolator_linear<agg::trans_affine> interpolator_type;
typedef image_resample_affine_type<source_type> span_gen_type;
interpolator_type interpolator(tr);
span_gen_type sg(source, interpolator, filter);
sg.blur(m_blur.value());
agg::render_scanlines_aa(g_rasterizer, g_scanline, rb_pre, sa, sg);
break;
}
case 2:
{
agg::trans_perspective tr(m_quad.polygon(), g_x1, g_y1, g_x2, g_y2);
if(tr.is_valid())
{
typedef agg::span_interpolator_linear_subdiv<agg::trans_perspective> interpolator_type;
interpolator_type interpolator(tr);
typedef image_filter_2x2_type<source_type,
interpolator_type> span_gen_type;
span_gen_type sg(source, interpolator, filter);
agg::render_scanlines_aa(g_rasterizer, g_scanline, rb_pre, sa, sg);
}
break;
}
case 3:
{
agg::trans_perspective tr(m_quad.polygon(), g_x1, g_y1, g_x2, g_y2);
if(tr.is_valid())
{
typedef agg::span_interpolator_trans<agg::trans_perspective> interpolator_type;
interpolator_type interpolator(tr);
typedef image_filter_2x2_type<source_type,
interpolator_type> span_gen_type;
span_gen_type sg(source, interpolator, filter);
agg::render_scanlines_aa(g_rasterizer, g_scanline, rb_pre, sa, sg);
}
break;
}
case 4:
{
typedef agg::span_interpolator_persp_lerp<> interpolator_type;
typedef agg::span_subdiv_adaptor<interpolator_type> subdiv_adaptor_type;
interpolator_type interpolator(m_quad.polygon(), g_x1, g_y1, g_x2, g_y2);
subdiv_adaptor_type subdiv_adaptor(interpolator);
if(interpolator.is_valid())
{
typedef image_resample_type<source_type,
subdiv_adaptor_type> span_gen_type;
span_gen_type sg(source, subdiv_adaptor, filter);
sg.blur(m_blur.value());
agg::render_scanlines_aa(g_rasterizer, g_scanline, rb_pre, sa, sg);
}
break;
}
case 5:
{
typedef agg::span_interpolator_persp_exact<> interpolator_type;
typedef agg::span_subdiv_adaptor<interpolator_type> subdiv_adaptor_type;
interpolator_type interpolator(m_quad.polygon(), g_x1, g_y1, g_x2, g_y2);
subdiv_adaptor_type subdiv_adaptor(interpolator);
if(interpolator.is_valid())
{
typedef image_resample_type<source_type,
subdiv_adaptor_type> span_gen_type;
span_gen_type sg(source, subdiv_adaptor, filter);
sg.blur(m_blur.value());
agg::render_scanlines_aa(g_rasterizer, g_scanline, rb_pre, sa, sg);
}
break;
}
}
double tm = elapsed_time();
pixf.apply_gamma_inv(m_gamma_lut);
char buf[64];
agg::gsv_text t;
t.size(10.0);
agg::conv_stroke<agg::gsv_text> pt(t);
pt.width(1.5);
sprintf(buf, "%3.2f ms", tm);
t.start_point(10.0, 70.0);
t.text(buf);
g_rasterizer.add_path(pt);
r.color(agg::rgba(0,0,0));
agg::render_scanlines(g_rasterizer, g_scanline, r);
//--------------------------
agg::render_ctrl(g_rasterizer, g_scanline, rb, m_trans_type);
agg::render_ctrl(g_rasterizer, g_scanline, rb, m_gamma);
agg::render_ctrl(g_rasterizer, g_scanline, rb, m_blur);
}
virtual void on_draw()
{
typedef agg::renderer_base<pixfmt> renderer_base;
typedef agg::renderer_scanline_aa_solid<renderer_base> renderer_scanline;
typedef agg::scanline_u8 scanline;
pixfmt pixf(rbuf_window());
renderer_base ren_base(pixf);
ren_base.clear(agg::rgba(1.0, 1.0, 0.95));
renderer_scanline ren(ren_base);
unsigned i;
unsigned w = unsigned(width());
m_gradient.resize(w);
agg::rgba8 c1(255, 0, 0, 180);
agg::rgba8 c2(0, 0, 255, 180);
for(i = 0; i < w; i++)
{
m_gradient[i] = c1.gradient(c2, i / width());
m_gradient[i].premultiply();
}
agg::rasterizer_scanline_aa<agg::rasterizer_sl_clip_dbl> ras;
agg::rasterizer_compound_aa<agg::rasterizer_sl_clip_dbl> rasc;
agg::scanline_u8 sl;
agg::scanline_bin sl_bin;
agg::conv_transform<agg::compound_shape> shape(m_shape, m_scale);
agg::conv_stroke<agg::conv_transform<agg::compound_shape> > stroke(shape);
agg::test_styles style_handler(m_colors, m_gradient.data());
agg::span_allocator<agg::rgba8> alloc;
m_shape.approximation_scale(m_scale.scale());
// Fill shape
//----------------------
rasc.clip_box(0, 0, width(), height());
rasc.reset();
//rasc.filling_rule(agg::fill_even_odd);
start_timer();
for(i = 0; i < m_shape.paths(); i++)
{
if(m_shape.style(i).left_fill >= 0 ||
m_shape.style(i).right_fill >= 0)
{
rasc.styles(m_shape.style(i).left_fill,
m_shape.style(i).right_fill);
rasc.add_path(shape, m_shape.style(i).path_id);
}
}
agg::render_scanlines_compound(rasc, sl, sl_bin, ren_base, alloc, style_handler);
double tfill = elapsed_time();
// Hit-test test
bool draw_strokes = true;
if(m_hit_x >= 0 && m_hit_y >= 0)
{
if(rasc.hit_test(m_hit_x, m_hit_y))
{
draw_strokes = false;
}
}
// Draw strokes
//----------------------
start_timer();
if(draw_strokes)
{
ras.clip_box(0, 0, width(), height());
stroke.width(sqrt(m_scale.scale()));
stroke.line_join(agg::round_join);
stroke.line_cap(agg::round_cap);
for(i = 0; i < m_shape.paths(); i++)
{
ras.reset();
if(m_shape.style(i).line >= 0)
{
ras.add_path(stroke, m_shape.style(i).path_id);
ren.color(agg::rgba8(0,0,0, 128));
agg::render_scanlines(ras, sl, ren);
}
}
}
double tstroke = elapsed_time();
char buf[256];
agg::gsv_text t;
t.size(8.0);
t.flip(true);
agg::conv_stroke<agg::gsv_text> ts(t);
ts.width(1.6);
ts.line_cap(agg::round_cap);
sprintf(buf, "Fill=%.2fms (%dFPS) Stroke=%.2fms (%dFPS) Total=%.2fms (%dFPS)\n\n"
"Space: Next Shape\n\n"
"+/- : ZoomIn/ZoomOut (with respect to the mouse pointer)",
tfill, int(1000.0 / tfill),
tstroke, int(1000.0 / tstroke),
tfill+tstroke, int(1000.0 / (tfill+tstroke)));
t.start_point(10.0, 20.0);
t.text(buf);
ras.add_path(ts);
ren.color(agg::rgba(0,0,0));
agg::render_scanlines(ras, sl, ren);
if(m_gamma.gamma() != 1.0)
{
pixf.apply_gamma_inv(m_gamma);
}
}
Py::Object
Image::resize(const Py::Tuple& args) {
_VERBOSE("Image::resize");
args.verify_length(2);
if (bufferIn ==NULL)
throw Py::RuntimeError("You must first load the image");
int numcols = Py::Int(args[0]);
int numrows = Py::Int(args[1]);
colsOut = numcols;
rowsOut = numrows;
size_t NUMBYTES(numrows * numcols * BPP);
agg::int8u *buffer = new agg::int8u[NUMBYTES];
if (buffer ==NULL) //todo: also handle allocation throw
throw Py::MemoryError("Image::resize could not allocate memory");
rbufOut = new agg::rendering_buffer;
rbufOut->attach(buffer, numcols, numrows, numcols * BPP);
// init the output rendering/rasterizing stuff
pixfmt pixf(*rbufOut);
renderer_base rb(pixf);
rb.clear(bg);
agg::rasterizer_scanline_aa<> ras;
agg::scanline_u8 sl;
//srcMatrix *= resizingMatrix;
//imageMatrix *= resizingMatrix;
imageMatrix.invert();
interpolator_type interpolator(imageMatrix);
agg::image_filter_base* filter = 0;
agg::span_allocator<agg::rgba8> sa;
agg::rgba8 background(agg::rgba8(int(255*bg.r),
int(255*bg.g),
int(255*bg.b),
int(255*bg.a)));
// the image path
agg::path_storage path;
agg::int8u *bufferPad = NULL;
agg::rendering_buffer rbufPad;
double x0, y0, x1, y1;
if (interpolation==NEAREST) {
x0 = 0.0;
x1 = colsIn;
y0 = 0.0;
y1 = rowsIn;
}
else {
// if interpolation != nearest, create a new input buffer with the
// edges mirrored on all size. Then new buffer size is colsIn+2 by
// rowsIn+2
x0 = 1.0;
x1 = colsIn+1;
y0 = 1.0;
y1 = rowsIn+1;
bufferPad = new agg::int8u[(rowsIn+2) * (colsIn+2) * BPP];
if (bufferPad ==NULL)
throw Py::MemoryError("Image::resize could not allocate memory");
//pad the input buffer
for (size_t rowNum=0; rowNum<rowsIn+2; rowNum++)
for (size_t colNum=0; colNum<colsIn+2; colNum++) {
if ( (colNum==0) && (rowNum==1||(rowNum==rowsIn+1))) {
//rewind to begining of column
bufferIn -= colsIn * BPP;
}
*bufferPad++ = *bufferIn++; //red
*bufferPad++ = *bufferIn++; //green
*bufferPad++ = *bufferIn++; //blue
*bufferPad++ = *bufferIn++; //alpha
//rewind one byte on the first and next to last columns
if ( colNum==0 || colNum==colsIn) bufferIn-=4;
}
//rewind the input buffers
bufferIn -= rowsIn * colsIn * BPP;
bufferPad -= (rowsIn+2) * (colsIn+2) * BPP;
rbufPad.attach(bufferPad, colsIn+2, rowsIn+2, (colsIn+2) * BPP);
}
if (buffer ==NULL) //todo: also handle allocation throw
throw Py::MemoryError("Image::resize could not allocate memory");
path.move_to(x0, y0);
path.line_to(x1, y0);
path.line_to(x1, y1);
path.line_to(x0, y1);
path.close_polygon();
agg::conv_transform<agg::path_storage> imageBox(path, srcMatrix);
ras.add_path(imageBox);
switch(interpolation)
{
case NEAREST:
{
typedef agg::span_image_filter_rgba32_nn<agg::order_rgba32,
interpolator_type> span_gen_type;
typedef agg::renderer_scanline_aa<renderer_base, span_gen_type> renderer_type;
span_gen_type sg(sa, *rbufIn, background, interpolator);
renderer_type ri(rb, sg);
agg::render_scanlines(ras, sl, ri);
}
break;
case BILINEAR:
{
typedef agg::span_image_filter_rgba32_bilinear<agg::order_rgba32,
interpolator_type> span_gen_type;
typedef agg::renderer_scanline_aa<renderer_base, span_gen_type> renderer_type;
span_gen_type sg(sa, rbufPad, background, interpolator);
renderer_type ri(rb, sg);
agg::render_scanlines(ras, sl, ri);
}
break;
case BICUBIC: filter = new agg::image_filter<agg::image_filter_bicubic>;
case SPLINE16: filter = new agg::image_filter<agg::image_filter_spline16>;
case SPLINE36: filter = new agg::image_filter<agg::image_filter_spline36>;
case SINC64: filter = new agg::image_filter<agg::image_filter_sinc64>;
case SINC144: filter = new agg::image_filter<agg::image_filter_sinc144>;
case SINC256: filter = new agg::image_filter<agg::image_filter_sinc256>;
case BLACKMAN64: filter = new agg::image_filter<agg::image_filter_blackman64>;
case BLACKMAN100: filter = new agg::image_filter<agg::image_filter_blackman100>;
case BLACKMAN256: filter = new agg::image_filter<agg::image_filter_blackman256>;
typedef agg::span_image_filter_rgba32<agg::order_rgba32,
interpolator_type> span_gen_type;
typedef agg::renderer_scanline_aa<renderer_base, span_gen_type> renderer_type;
span_gen_type sg(sa, rbufPad, background, interpolator, *filter);
renderer_type ri(rb, sg);
agg::render_scanlines(ras, sl, ri);
}
/*
std::ofstream of2( "image_out.raw", std::ios::binary|std::ios::out);
for (size_t i=0; i<NUMBYTES; ++i)
of2.write((char*)&buffer[i], sizeof(char));
*/
bufferOut = buffer;
delete [] bufferPad;
return Py::Object();
}
void agg_renderer<T>::process(line_symbolizer const& sym,
mapnik::feature_impl & feature,
proj_transform const& prj_trans)
{
stroke const& stroke_ = sym.get_stroke();
color const& col = stroke_.get_color();
unsigned r=col.red();
unsigned g=col.green();
unsigned b=col.blue();
unsigned a=col.alpha();
ras_ptr->reset();
if (stroke_.get_gamma() != gamma_ || stroke_.get_gamma_method() != gamma_method_)
{
set_gamma_method(stroke_, ras_ptr);
gamma_method_ = stroke_.get_gamma_method();
gamma_ = stroke_.get_gamma();
}
agg::rendering_buffer buf(current_buffer_->raw_data(),current_buffer_->width(),current_buffer_->height(), current_buffer_->width() * 4);
typedef agg::rgba8 color_type;
typedef agg::order_rgba order_type;
typedef agg::comp_op_adaptor_rgba_pre<color_type, order_type> blender_type; // comp blender
typedef agg::pixfmt_custom_blend_rgba<blender_type, agg::rendering_buffer> pixfmt_comp_type;
typedef agg::renderer_base<pixfmt_comp_type> renderer_base;
typedef boost::mpl::vector<clip_line_tag, transform_tag,
offset_transform_tag, affine_transform_tag,
simplify_tag, smooth_tag, dash_tag, stroke_tag> conv_types;
pixfmt_comp_type pixf(buf);
pixf.comp_op(static_cast<agg::comp_op_e>(sym.comp_op()));
renderer_base renb(pixf);
agg::trans_affine tr;
evaluate_transform(tr, feature, sym.get_transform(), scale_factor_);
box2d<double> clip_box = clipping_extent();
if (sym.clip())
{
double padding = (double)(query_extent_.width()/pixmap_.width());
double half_stroke = stroke_.get_width()/2.0;
if (half_stroke > 1)
padding *= half_stroke;
if (std::fabs(sym.offset()) > 0)
padding *= std::fabs(sym.offset()) * 1.2;
padding *= scale_factor_;
clip_box.pad(padding);
// debugging
//box2d<double> inverse = query_extent_;
//inverse.pad(-padding);
//draw_geo_extent(inverse,mapnik::color("red"));
}
if (sym.get_rasterizer() == RASTERIZER_FAST)
{
typedef agg::renderer_outline_aa<renderer_base> renderer_type;
typedef agg::rasterizer_outline_aa<renderer_type> rasterizer_type;
agg::line_profile_aa profile(stroke_.get_width() * scale_factor_, agg::gamma_power(stroke_.get_gamma()));
renderer_type ren(renb, profile);
ren.color(agg::rgba8_pre(r, g, b, int(a*stroke_.get_opacity())));
rasterizer_type ras(ren);
set_join_caps_aa(stroke_,ras);
vertex_converter<box2d<double>, rasterizer_type, line_symbolizer,
CoordTransform, proj_transform, agg::trans_affine, conv_types>
converter(clip_box,ras,sym,t_,prj_trans,tr,scale_factor_);
if (sym.clip()) converter.set<clip_line_tag>(); // optional clip (default: true)
converter.set<transform_tag>(); // always transform
if (std::fabs(sym.offset()) > 0.0) converter.set<offset_transform_tag>(); // parallel offset
converter.set<affine_transform_tag>(); // optional affine transform
if (sym.simplify_tolerance() > 0.0) converter.set<simplify_tag>(); // optional simplify converter
if (sym.smooth() > 0.0) converter.set<smooth_tag>(); // optional smooth converter
for (geometry_type & geom : feature.paths())
{
if (geom.size() > 1)
{
converter.apply(geom);
}
}
}
else
{
vertex_converter<box2d<double>, rasterizer, line_symbolizer,
CoordTransform, proj_transform, agg::trans_affine, conv_types>
converter(clip_box,*ras_ptr,sym,t_,prj_trans,tr,scale_factor_);
if (sym.clip()) converter.set<clip_line_tag>(); // optional clip (default: true)
converter.set<transform_tag>(); // always transform
if (std::fabs(sym.offset()) > 0.0) converter.set<offset_transform_tag>(); // parallel offset
converter.set<affine_transform_tag>(); // optional affine transform
if (sym.simplify_tolerance() > 0.0) converter.set<simplify_tag>(); // optional simplify converter
if (sym.smooth() > 0.0) converter.set<smooth_tag>(); // optional smooth converter
if (stroke_.has_dash()) converter.set<dash_tag>();
converter.set<stroke_tag>(); //always stroke
for (geometry_type & geom : feature.paths())
{
if (geom.size() > 1)
{
converter.apply(geom);
}
}
typedef agg::renderer_scanline_aa_solid<renderer_base> renderer_type;
renderer_type ren(renb);
ren.color(agg::rgba8_pre(r, g, b, int(a * stroke_.get_opacity())));
agg::scanline_u8 sl;
ras_ptr->filling_rule(agg::fill_non_zero);
agg::render_scanlines(*ras_ptr, sl, ren);
}
}
Py::Object
_image_module::from_images(const Py::Tuple& args) {
_VERBOSE("_image_module::from_images");
args.verify_length(3);
size_t numrows = Py::Int(args[0]);
size_t numcols = Py::Int(args[1]);
Py::SeqBase<Py::Object> tups = args[2];
size_t N = tups.length();
if (N==0)
throw Py::RuntimeError("Empty list of images");
Py::Tuple tup;
size_t ox(0), oy(0), thisx(0), thisy(0);
//copy image 0 output buffer into return images output buffer
Image* imo = new Image;
imo->rowsOut = numrows;
imo->colsOut = numcols;
size_t NUMBYTES(numrows * numcols * imo->BPP);
imo->bufferOut = new agg::int8u[NUMBYTES];
if (imo->bufferOut==NULL) //todo: also handle allocation throw
throw Py::MemoryError("_image_module::from_images could not allocate memory");
imo->rbufOut = new agg::rendering_buffer;
imo->rbufOut->attach(imo->bufferOut, imo->colsOut, imo->rowsOut, imo->colsOut * imo->BPP);
pixfmt pixf(*imo->rbufOut);
renderer_base rb(pixf);
for (size_t imnum=0; imnum< N; imnum++) {
tup = Py::Tuple(tups[imnum]);
Image* thisim = static_cast<Image*>(tup[0].ptr());
if (imnum==0)
rb.clear(thisim->bg);
ox = Py::Int(tup[1]);
oy = Py::Int(tup[2]);
size_t ind=0;
for (size_t j=0; j<thisim->rowsOut; j++) {
for (size_t i=0; i<thisim->colsOut; i++) {
thisx = i+ox;
thisy = j+oy;
if (thisx<0 || thisx>=numcols || thisy<0 || thisy>=numrows) {
ind +=4;
continue;
}
pixfmt::color_type p;
p.r = *(thisim->bufferOut+ind++);
p.g = *(thisim->bufferOut+ind++);
p.b = *(thisim->bufferOut+ind++);
p.a = *(thisim->bufferOut+ind++);
pixf.blend_pixel(thisx, thisy, p, 255);
}
}
}
return Py::asObject(imo);
}
void grid_renderer<T>::process(polygon_pattern_symbolizer const& sym,
mapnik::feature_impl & feature,
proj_transform const& prj_trans)
{
std::string filename = get<std::string, keys::file>(sym, feature, common_.vars_);
if (filename.empty()) return;
mapnik::marker const& mark = marker_cache::instance().find(filename, true);
if (mark.is<mapnik::marker_null>()) return;
if (!mark.is<mapnik::marker_rgba8>())
{
MAPNIK_LOG_DEBUG(agg_renderer) << "agg_renderer: Only images (not '" << filename << "') are supported in the line_pattern_symbolizer";
return;
}
ras_ptr->reset();
value_bool clip = get<value_bool, keys::clip>(sym, feature, common_.vars_);
value_double simplify_tolerance = get<value_double, keys::simplify_tolerance>(sym, feature, common_.vars_);
value_double smooth = get<value_double, keys::smooth>(sym, feature, common_.vars_);
agg::trans_affine tr;
auto transform = get_optional<transform_type>(sym, keys::geometry_transform);
if (transform)
{
evaluate_transform(tr, feature, common_.vars_, *transform, common_.scale_factor_);
}
using vertex_converter_type = vertex_converter<clip_poly_tag,transform_tag,affine_transform_tag,smooth_tag>;
vertex_converter_type converter(common_.query_extent_,sym,common_.t_,prj_trans,tr,feature,common_.vars_,common_.scale_factor_);
if (prj_trans.equal() && clip) converter.set<clip_poly_tag>(); //optional clip (default: true)
converter.set<transform_tag>(); //always transform
converter.set<affine_transform_tag>();
if (simplify_tolerance > 0.0) converter.set<simplify_tag>(); // optional simplify converter
if (smooth > 0.0) converter.set<smooth_tag>(); // optional smooth converter
using apply_vertex_converter_type = detail::apply_vertex_converter<vertex_converter_type, grid_rasterizer>;
using vertex_processor_type = geometry::vertex_processor<apply_vertex_converter_type>;
apply_vertex_converter_type apply(converter, *ras_ptr);
mapnik::util::apply_visitor(vertex_processor_type(apply),feature.get_geometry());
using pixfmt_type = typename grid_renderer_base_type::pixfmt_type;
using color_type = typename grid_renderer_base_type::pixfmt_type::color_type;
using renderer_type = agg::renderer_scanline_bin_solid<grid_renderer_base_type>;
grid_rendering_buffer buf(pixmap_.raw_data(), common_.width_, common_.height_, common_.width_);
pixfmt_type pixf(buf);
grid_renderer_base_type renb(pixf);
renderer_type ren(renb);
// render id
ren.color(color_type(feature.id()));
agg::scanline_bin sl;
ras_ptr->filling_rule(agg::fill_even_odd);
agg::render_scanlines(*ras_ptr, sl, ren);
// add feature properties to grid cache
pixmap_.add_feature(feature);
}
void render(geometry_type& geom, Image32& image) const
{
typedef agg::renderer_base<agg::pixfmt_rgba32> ren_base;
agg::row_ptr_cache<agg::int8u> buf(image.raw_data(),image.width(),image.height(),
image.width()*4);
agg::pixfmt_rgba32 pixf(buf);
ren_base renb(pixf);
Color const& col = stroke_.get_color();
double r=col.red()/255.0;
double g=col.green()/255.0;
double b=col.blue()/255.0;
if (0) //stroke_.width() == 1.0)
{
typedef agg::renderer_outline_aa<ren_base> renderer_oaa;
typedef agg::rasterizer_outline_aa<renderer_oaa> rasterizer_outline_aa;
agg::line_profile_aa prof;
prof.width(stroke_.get_width());
renderer_oaa ren_oaa(renb, prof);
rasterizer_outline_aa ras_oaa(ren_oaa);
ren_oaa.color(agg::rgba(r, g, b, stroke_.get_opacity()));
ras_oaa.add_path(geom);
//LineRasterizerAA<Image32> rasterizer(image);
//rasterizer.render<SHIFT0>(geom,stroke_.get_color());
}
else
{
//typedef agg::renderer_base<agg::pixfmt_rgba32> ren_base;
typedef agg::renderer_scanline_aa_solid<ren_base> renderer;
renderer ren(renb);
agg::rasterizer_scanline_aa<> ras;
agg::scanline_u8 sl;
if (stroke_.has_dash())
{
agg::conv_dash<geometry<vertex2d,vertex_vector> > dash(geom);
dash_array const& d = stroke_.get_dash_array();
dash_array::const_iterator itr = d.begin();
dash_array::const_iterator end = d.end();
while (itr != end)
{
dash.add_dash(itr->first, itr->second);
++itr;
}
agg::conv_stroke<agg::conv_dash<geometry<vertex2d,vertex_vector> > > stroke(dash);
line_join_e join=stroke_.get_line_join();
if ( join == MITER_JOIN)
stroke.generator().line_join(agg::miter_join);
else if( join == MITER_REVERT_JOIN)
stroke.generator().line_join(agg::miter_join);
else if( join == ROUND_JOIN)
stroke.generator().line_join(agg::round_join);
else
stroke.generator().line_join(agg::bevel_join);
line_cap_e cap=stroke_.get_line_cap();
if (cap == BUTT_CAP)
stroke.generator().line_cap(agg::butt_cap);
else if (cap == SQUARE_CAP)
stroke.generator().line_cap(agg::square_cap);
else
stroke.generator().line_cap(agg::round_cap);
stroke.generator().miter_limit(4.0);
stroke.generator().width(stroke_.get_width());
ras.clip_box(0,0,image.width(),image.height());
ras.add_path(stroke);
ren.color(agg::rgba(r, g, b, stroke_.get_opacity()));
agg::render_scanlines(ras, sl, ren);
}
else
{
agg::conv_stroke<geometry<vertex2d,vertex_vector> > stroke(geom);
line_join_e join=stroke_.get_line_join();
if ( join == MITER_JOIN)
stroke.generator().line_join(agg::miter_join);
else if( join == MITER_REVERT_JOIN)
stroke.generator().line_join(agg::miter_join);
else if( join == ROUND_JOIN)
stroke.generator().line_join(agg::round_join);
else
stroke.generator().line_join(agg::bevel_join);
line_cap_e cap=stroke_.get_line_cap();
if (cap == BUTT_CAP)
stroke.generator().line_cap(agg::butt_cap);
else if (cap == SQUARE_CAP)
stroke.generator().line_cap(agg::square_cap);
else
stroke.generator().line_cap(agg::round_cap);
stroke.generator().miter_limit(4.0);
stroke.generator().width(stroke_.get_width());
ras.clip_box(0,0,image.width(),image.height());
ras.add_path(stroke);
ren.color(agg::rgba(r, g, b, stroke_.get_opacity()));
agg::render_scanlines(ras, sl, ren);
}
}
}
virtual void on_draw()
{
typedef agg::pixfmt_bgr24 pixfmt;
typedef agg::renderer_base<pixfmt> renderer_base;
typedef agg::renderer_scanline_aa_solid<renderer_base> renderer_solid;
pixfmt pixf(rbuf_window());
renderer_base rb(pixf);
renderer_solid rs(rb);
rb.clear(agg::rgba(1.0, 1.0, 1.0));
agg::rasterizer_scanline_aa<> ras;
agg::scanline_p8 sl;
double x_start = 125.0;
double x_end = initial_width() - 15.0;
double y_start = 10.0;
double y_end = initial_height() - 10.0;
double x_center = (x_start + x_end) / 2;
unsigned i;
agg::path_storage p;
agg::conv_stroke<agg::path_storage> pl(p);
agg::conv_transform<agg::conv_stroke<agg::path_storage> > tr(pl, trans_affine_resizing());
for(i = 0; i <= 16; i++)
{
double x = x_start + (x_end - x_start) * i / 16.0;
p.remove_all();
p.move_to(x+0.5, y_start);
p.line_to(x+0.5, y_end);
ras.add_path(tr);
rs.color(agg::rgba8(0, 0, 0, i == 8 ? 255 : 100));
agg::render_scanlines(ras, sl, rs);
}
double ys = y_start + (y_end - y_start) / 6.0;
p.remove_all();
p.move_to(x_start, ys);
p.line_to(x_end, ys);
ras.add_path(tr);
rs.color(agg::rgba8(0, 0, 0));
agg::render_scanlines(ras, sl, rs);
pl.width(1.0);
for(i = 0; i < m_num_filters; i++)
{
if(m_filters[i]->status())
{
m_filter_func[i]->set_radius(m_radius.value());
unsigned j;
double radius = m_filter_func[i]->radius();
unsigned n = unsigned(radius * 256 * 2);
double dy = y_end - ys;
double xs = (x_end + x_start)/2.0 - (radius * (x_end - x_start) / 16.0);
double dx = (x_end - x_start) * radius / 8.0;
p.remove_all();
p.move_to(xs+0.5, ys + dy * m_filter_func[i]->calc_weight(-radius));
for(j = 1; j < n; j++)
{
p.line_to(xs + dx * j / n + 0.5,
ys + dy * m_filter_func[i]->calc_weight(j / 256.0 - radius));
}
ras.add_path(tr);
rs.color(agg::rgba8(100, 0, 0));
agg::render_scanlines(ras, sl, rs);
p.remove_all();
unsigned xint;
int ir = int(ceil(radius) + 0.1);
for(xint = 0; xint < 256; xint++)
{
int xfract;
double sum = 0;
for(xfract = -ir; xfract < ir; xfract++)
{
double xf = xint/256.0 + xfract;
if(xf >= -radius || xf <= radius)
{
sum += m_filter_func[i]->calc_weight(xf);
}
}
double x = x_center + ((-128.0 + xint) / 128.0) * radius * (x_end - x_start) / 16.0;
double y = ys + sum * 256 - 256;
if(xint == 0) p.move_to(x, y);
else p.line_to(x, y);
}
ras.add_path(tr);
rs.color(agg::rgba8(0, 100, 0));
agg::render_scanlines(ras, sl, rs);
agg::image_filter_lut normalized(*m_filter_func[i]);
const agg::int16* weights = normalized.weight_array();
xs = (x_end + x_start)/2.0 - (normalized.diameter() * (x_end - x_start) / 32.0);
unsigned nn = normalized.diameter() * 256;
p.remove_all();
p.move_to(xs+0.5, ys + dy * weights[0] / agg::image_filter_size);
for(j = 1; j < nn; j++)
{
p.line_to(xs + dx * j / n + 0.5,
ys + dy * weights[j] / agg::image_filter_size);
}
ras.add_path(tr);
rs.color(agg::rgba8(0, 0, 100, 255));
agg::render_scanlines(ras, sl, rs);
}
}
for(i = 0; i < m_num_filters; i++)
{
agg::render_ctrl(ras, sl, rs, *m_filters[i]);
}
if(m_sinc.status() || m_lanczos.status() || m_blackman.status())
{
agg::render_ctrl(ras, sl, rs, m_radius);
}
}
void agg_renderer<T0,T1>::process(building_symbolizer const& sym,
mapnik::feature_impl & feature,
proj_transform const& prj_trans)
{
using transform_path_type = transform_path_adapter<view_transform, vertex_adapter>;
using ren_base = agg::renderer_base<agg::pixfmt_rgba32_pre>;
using renderer = agg::renderer_scanline_aa_solid<ren_base>;
agg::rendering_buffer buf(current_buffer_->bytes(),current_buffer_->width(),current_buffer_->height(), current_buffer_->row_size());
agg::pixfmt_rgba32_pre pixf(buf);
ren_base renb(pixf);
value_double opacity = get<value_double,keys::fill_opacity>(sym,feature, common_.vars_);
color const& fill = get<color, keys::fill>(sym, feature, common_.vars_);
unsigned r=fill.red();
unsigned g=fill.green();
unsigned b=fill.blue();
unsigned a=fill.alpha();
renderer ren(renb);
agg::scanline_u8 sl;
ras_ptr->reset();
double gamma = get<value_double, keys::gamma>(sym, feature, common_.vars_);
gamma_method_enum gamma_method = get<gamma_method_enum, keys::gamma_method>(sym, feature, common_.vars_);
if (gamma != gamma_ || gamma_method != gamma_method_)
{
set_gamma_method(ras_ptr, gamma, gamma_method);
gamma_method_ = gamma_method;
gamma_ = gamma;
}
double height = get<double, keys::height>(sym, feature, common_.vars_) * common_.scale_factor_;
render_building_symbolizer(
feature, height,
[&,r,g,b,a,opacity](path_type const& faces)
{
vertex_adapter va(faces);
transform_path_type faces_path (this->common_.t_,va,prj_trans);
ras_ptr->add_path(faces_path);
ren.color(agg::rgba8_pre(int(r*0.8), int(g*0.8), int(b*0.8), int(a * opacity)));
agg::render_scanlines(*ras_ptr, sl, ren);
this->ras_ptr->reset();
},
[&,r,g,b,a,opacity](path_type const& frame)
{
vertex_adapter va(frame);
transform_path_type path(common_.t_,va, prj_trans);
agg::conv_stroke<transform_path_type> stroke(path);
stroke.width(common_.scale_factor_);
ras_ptr->add_path(stroke);
ren.color(agg::rgba8_pre(int(r*0.8), int(g*0.8), int(b*0.8), int(a * opacity)));
agg::render_scanlines(*ras_ptr, sl, ren);
ras_ptr->reset();
},
[&,r,g,b,a,opacity](path_type const& roof)
{
vertex_adapter va(roof);
transform_path_type roof_path (common_.t_,va,prj_trans);
ras_ptr->add_path(roof_path);
ren.color(agg::rgba8_pre(r, g, b, int(a * opacity)));
agg::render_scanlines(*ras_ptr, sl, ren);
});
}
int main(int argc, char* argv[])
{
if(argc < 4)
{
printf("usage: bezier_test <width> <height> <number_of_curves>\n");
return 1;
}
unsigned w = atoi(argv[1]);
unsigned h = atoi(argv[2]);
unsigned n = atoi(argv[3]);
if(w < 20 || h < 20)
{
printf("Width and hight must be at least 20\n");
return 1;
}
if(w > 4096 || h > 4096)
{
printf("Width and hight mustn't exceed 4096\n");
return 1;
}
unsigned stride = (w * 3 + 3) / 4 * 4;
unsigned char* frame_buffer = new unsigned char[stride * h];
agg::rendering_buffer rbuf;
rbuf.attach((unsigned char*)frame_buffer, w, h, stride);
agg::pixfmt_bgr24 pixf(rbuf);
agg::renderer_base<agg::pixfmt_bgr24> renb(pixf);
agg::renderer_scanline_aa_solid<agg::renderer_base<agg::pixfmt_bgr24> > ren(renb);
renb.clear(agg::rgba(1.0, 1.0, 1.0));
clock_t t1 = clock();
agg::curve4 curve;
agg::conv_stroke<agg::curve4> poly(curve);
agg::rasterizer_scanline_aa<> ras;
agg::scanline_p8 sl;
unsigned i;
for(i = 0; i < n; i++)
{
poly.width(double(rand() % 3500 + 500) / 500.0);
curve.init(rand() % w, rand() % h,
rand() % w, rand() % h,
rand() % w, rand() % h,
rand() % w, rand() % h);
ren.color(agg::rgba8(rand() & 0xFF,
rand() & 0xFF,
rand() & 0xFF,
rand() & 0xFF));
ras.add_path(poly, 0);
agg::render_scanlines(ras, sl, ren);
}
clock_t t2 = clock();
double sec = double(t2 - t1) / CLOCKS_PER_SEC;
printf("%10.3f sec, %10.3f curves per sec\n", sec, double(n) / sec);
write_bmp_24("output.bmp", (unsigned char*)frame_buffer, w, h, stride);
delete [] frame_buffer;
return 0;
}
virtual void on_draw()
{
typedef agg::renderer_base<pixfmt> ren_base;
pixfmt pixf(rbuf_window());
ren_base rbase(pixf);
trans_roundoff roundoff;
if(m_redraw_flag)
{
g_rasterizer.gamma(agg::gamma_none());
rbase.clear(agg::rgba8(255,255,255));
g_rasterizer.filling_rule(agg::fill_non_zero);
agg::render_ctrl(g_rasterizer, g_scanline, rbase, m_rotate);
agg::render_ctrl(g_rasterizer, g_scanline, rbase, m_even_odd);
agg::render_ctrl(g_rasterizer, g_scanline, rbase, m_draft);
agg::render_ctrl(g_rasterizer, g_scanline, rbase, m_roundoff);
agg::render_ctrl(g_rasterizer, g_scanline, rbase, m_angle_delta);
m_redraw_flag = false;
}
else
{
rbase.copy_bar(0,
int(32.0 * rbuf_window().height() / m_dy),
rbuf_window().width(),
rbuf_window().height(),
agg::rgba8(255,255,255));
}
if(m_draft.status())
{
g_rasterizer.gamma(agg::gamma_threshold(0.4));
}
agg::trans_affine mtx;
mtx.reset();
mtx *= agg::trans_affine_rotation(g_angle * agg::pi / 180.0);
mtx *= agg::trans_affine_translation(m_dx / 2, m_dy / 2 + 10);
mtx *= agg::trans_affine_scaling(rbuf_window().width() / m_dx,
rbuf_window().height() / m_dy);
agg::conv_transform<agg::path_storage> fill(g_path, mtx);
agg::conv_transform
<
agg::conv_transform<agg::path_storage>,
trans_roundoff
>
fill_roundoff(fill, roundoff);
agg::conv_stroke
<
agg::conv_transform<agg::path_storage>
>
stroke(fill);
agg::conv_stroke
<
agg::conv_transform
<
agg::conv_transform<agg::path_storage>,
trans_roundoff
>
>
stroke_roundoff(fill_roundoff);
g_pflag = m_even_odd.status() ? agg::fill_even_odd : agg::fill_non_zero;
unsigned i;
for(i = 0; i < g_npaths; i++)
{
g_rasterizer.filling_rule(g_pflag);
if(m_roundoff.status()) g_rasterizer.add_path(fill_roundoff, g_attr[i].index);
else g_rasterizer.add_path(fill, g_attr[i].index);
if(m_draft.status())
{
agg::render_scanlines_bin_solid(g_rasterizer, g_scanline, rbase, g_attr[i].fill_color);
}
else
{
agg::render_scanlines_aa_solid(g_rasterizer, g_scanline, rbase, g_attr[i].fill_color);
}
if(g_attr[i].stroke_width > 0.001)
{
stroke.width(g_attr[i].stroke_width * mtx.scale());
stroke_roundoff.width(g_attr[i].stroke_width * mtx.scale());
if(m_roundoff.status()) g_rasterizer.add_path(stroke_roundoff, g_attr[i].index);
else g_rasterizer.add_path(stroke, g_attr[i].index);
if(m_draft.status())
{
agg::render_scanlines_bin_solid(g_rasterizer, g_scanline, rbase, g_attr[i].stroke_color);
}
else
{
agg::render_scanlines_aa_solid(g_rasterizer, g_scanline, rbase, g_attr[i].stroke_color);
}
}
}
}
Py::Object
Image::resize(const Py::Tuple& args) {
_VERBOSE("Image::resize");
args.verify_length(2);
if (bufferIn ==NULL)
throw Py::RuntimeError("You must first load the image");
int numcols = Py::Int(args[0]);
int numrows = Py::Int(args[1]);
colsOut = numcols;
rowsOut = numrows;
size_t NUMBYTES(numrows * numcols * BPP);
agg::int8u *buffer = new agg::int8u[NUMBYTES];
if (buffer ==NULL) //todo: also handle allocation throw
throw Py::MemoryError("Image::resize could not allocate memory");
rbufOut = new agg::rendering_buffer;
rbufOut->attach(buffer, numcols, numrows, numcols * BPP);
// init the output rendering/rasterizing stuff
pixfmt pixf(*rbufOut);
renderer_base rb(pixf);
rb.clear(bg);
agg::rasterizer_scanline_aa<> ras;
agg::scanline_u8 sl;
//srcMatrix *= resizingMatrix;
//imageMatrix *= resizingMatrix;
imageMatrix.invert();
interpolator_type interpolator(imageMatrix);
// the image path
agg::path_storage path;
path.move_to(0, 0);
path.line_to(colsIn, 0);
path.line_to(colsIn, rowsIn);
path.line_to(0, rowsIn);
path.close_polygon();
agg::conv_transform<agg::path_storage> imageBox(path, srcMatrix);
ras.add_path(imageBox);
agg::image_filter_base* filter = 0;
agg::span_allocator<agg::rgba8> sa;
switch(interpolation)
{
case NEAREST:
{
typedef agg::span_image_filter_rgba32_nn<agg::order_rgba32,
interpolator_type> span_gen_type;
typedef agg::renderer_scanline_u<renderer_base, span_gen_type> renderer_type;
span_gen_type sg(sa, *rbufIn, agg::rgba(1,1,1,0), interpolator);
renderer_type ri(rb, sg);
ras.add_path(imageBox);
ras.render(sl, ri);
}
break;
case BILINEAR:
{
typedef agg::span_image_filter_rgba32_bilinear<agg::order_rgba32,
interpolator_type> span_gen_type;
typedef agg::renderer_scanline_u<renderer_base, span_gen_type> renderer_type;
span_gen_type sg(sa, *rbufIn, agg::rgba(1,1,1,0), interpolator);
renderer_type ri(rb, sg);
ras.add_path(imageBox);
ras.render(sl, ri);
}
break;
case BICUBIC:
filter = new agg::image_filter<agg::image_filter_bicubic>;
case SPLINE16:
filter = new agg::image_filter<agg::image_filter_spline16>;
case SPLINE36:
filter = new agg::image_filter<agg::image_filter_spline36>;
case SINC64:
filter = new agg::image_filter<agg::image_filter_sinc64>;
case SINC144:
filter = new agg::image_filter<agg::image_filter_sinc144>;
case SINC256:
filter = new agg::image_filter<agg::image_filter_sinc256>;
case BLACKMAN64:
filter = new agg::image_filter<agg::image_filter_blackman64>;
case BLACKMAN100:
filter = new agg::image_filter<agg::image_filter_blackman100>;
case BLACKMAN256:
filter = new agg::image_filter<agg::image_filter_blackman256>;
typedef agg::span_image_filter_rgba32<agg::order_rgba32,
interpolator_type> span_gen_type;
typedef agg::renderer_scanline_u<renderer_base, span_gen_type> renderer_type;
span_gen_type sg(sa, *rbufIn, agg::rgba(1,1,1,0), interpolator, *filter);
renderer_type ri(rb, sg);
ras.render(sl, ri);
}
/*
std::ofstream of2( "image_out.raw", std::ios::binary|std::ios::out);
for (size_t i=0; i<NUMBYTES; ++i)
of2.write((char*)&buffer[i], sizeof(char));
*/
bufferOut = buffer;
return Py::Object();
}
void operator() (marker_rgba8 const& marker)
{
using color = agg::rgba8;
using order = agg::order_rgba;
using blender_type = agg::comp_op_adaptor_rgba_pre<color, order>;
using pattern_filter_type = agg::pattern_filter_bilinear_rgba8;
using pattern_type = agg::line_image_pattern<pattern_filter_type>;
using pixfmt_type = agg::pixfmt_custom_blend_rgba<blender_type, agg::rendering_buffer>;
using renderer_base = agg::renderer_base<pixfmt_type>;
using renderer_type = agg::renderer_outline_image<renderer_base, pattern_type>;
using rasterizer_type = agg::rasterizer_outline_aa<renderer_type>;
value_double opacity = get<value_double, keys::opacity>(sym_, feature_, common_.vars_);
mapnik::image_rgba8 const& image = marker.get_data();
value_bool clip = get<value_bool, keys::clip>(sym_, feature_, common_.vars_);
value_double offset = get<value_double, keys::offset>(sym_, feature_, common_.vars_);
value_double simplify_tolerance = get<value_double, keys::simplify_tolerance>(sym_, feature_, common_.vars_);
value_double smooth = get<value_double, keys::smooth>(sym_, feature_, common_.vars_);
agg::rendering_buffer buf(current_buffer_->getBytes(),current_buffer_->width(),current_buffer_->height(), current_buffer_->getRowSize());
pixfmt_type pixf(buf);
pixf.comp_op(static_cast<agg::comp_op_e>(get<composite_mode_e, keys::comp_op>(sym_, feature_, common_.vars_)));
renderer_base ren_base(pixf);
agg::pattern_filter_bilinear_rgba8 filter;
pattern_source source(image, opacity);
pattern_type pattern (filter,source);
renderer_type ren(ren_base, pattern);
ren.clip_box(0,0,common_.width_,common_.height_);
rasterizer_type ras(ren);
agg::trans_affine tr;
auto transform = get_optional<transform_type>(sym_, keys::geometry_transform);
if (transform) evaluate_transform(tr, feature_, common_.vars_, *transform, common_.scale_factor_);
box2d<double> clip_box = clipping_extent(common_);
if (clip)
{
double padding = (double)(common_.query_extent_.width()/pixmap_.width());
double half_stroke = marker.width()/2.0;
if (half_stroke > 1)
padding *= half_stroke;
if (std::fabs(offset) > 0)
padding *= std::fabs(offset) * 1.2;
padding *= common_.scale_factor_;
clip_box.pad(padding);
}
vertex_converter<rasterizer_type, clip_line_tag, transform_tag,
affine_transform_tag,
simplify_tag,smooth_tag,
offset_transform_tag>
converter(clip_box,ras,sym_,common_.t_,prj_trans_,tr,feature_,common_.vars_,common_.scale_factor_);
if (clip) converter.set<clip_line_tag>(); //optional clip (default: true)
converter.set<transform_tag>(); //always transform
if (simplify_tolerance > 0.0) converter.set<simplify_tag>(); // optional simplify converter
if (std::fabs(offset) > 0.0) converter.set<offset_transform_tag>(); // parallel offset
converter.set<affine_transform_tag>(); // optional affine transform
if (smooth > 0.0) converter.set<smooth_tag>(); // optional smooth converter
for (geometry_type const& geom : feature_.paths())
{
if (geom.size() > 1)
{
vertex_adapter va(geom);
converter.apply(va);
}
}
}
void agg_renderer<T>::process(line_symbolizer const& sym,
Feature const& feature,
proj_transform const& prj_trans)
{
typedef agg::renderer_base<agg::pixfmt_rgba32_plain> ren_base;
typedef coord_transform2<CoordTransform,geometry_type> path_type;
typedef agg::renderer_outline_aa<ren_base> renderer_oaa;
typedef agg::rasterizer_outline_aa<renderer_oaa> rasterizer_outline_aa;
typedef agg::renderer_scanline_aa_solid<ren_base> renderer;
agg::rendering_buffer buf(pixmap_.raw_data(),width_,height_, width_ * 4);
agg::pixfmt_rgba32_plain pixf(buf);
ren_base renb(pixf);
stroke const& stroke_ = sym.get_stroke();
color const& col = stroke_.get_color();
unsigned r=col.red();
unsigned g=col.green();
unsigned b=col.blue();
unsigned a=col.alpha();
renderer ren(renb);
ras_ptr->reset();
ras_ptr->gamma(agg::gamma_linear());
agg::scanline_p8 sl;
metawriter_with_properties writer = sym.get_metawriter();
for (unsigned i=0;i<feature.num_geometries();++i)
{
geometry_type const& geom = feature.get_geometry(i);
if (geom.num_points() > 1)
{
path_type path(t_,geom,prj_trans);
if (stroke_.has_dash())
{
agg::conv_dash<path_type> dash(path);
dash_array const& d = stroke_.get_dash_array();
dash_array::const_iterator itr = d.begin();
dash_array::const_iterator end = d.end();
for (;itr != end;++itr)
{
dash.add_dash(itr->first * scale_factor_,
itr->second * scale_factor_);
}
agg::conv_stroke<agg::conv_dash<path_type > > stroke(dash);
line_join_e join=stroke_.get_line_join();
if ( join == MITER_JOIN)
stroke.generator().line_join(agg::miter_join);
else if( join == MITER_REVERT_JOIN)
stroke.generator().line_join(agg::miter_join);
else if( join == ROUND_JOIN)
stroke.generator().line_join(agg::round_join);
else
stroke.generator().line_join(agg::bevel_join);
line_cap_e cap=stroke_.get_line_cap();
if (cap == BUTT_CAP)
stroke.generator().line_cap(agg::butt_cap);
else if (cap == SQUARE_CAP)
stroke.generator().line_cap(agg::square_cap);
else
stroke.generator().line_cap(agg::round_cap);
stroke.generator().miter_limit(4.0);
stroke.generator().width(stroke_.get_width() * scale_factor_);
ras_ptr->add_path(stroke);
}
else
{
agg::conv_stroke<path_type> stroke(path);
line_join_e join=stroke_.get_line_join();
if ( join == MITER_JOIN)
stroke.generator().line_join(agg::miter_join);
else if( join == MITER_REVERT_JOIN)
stroke.generator().line_join(agg::miter_join);
else if( join == ROUND_JOIN)
stroke.generator().line_join(agg::round_join);
else
stroke.generator().line_join(agg::bevel_join);
line_cap_e cap=stroke_.get_line_cap();
if (cap == BUTT_CAP)
stroke.generator().line_cap(agg::butt_cap);
else if (cap == SQUARE_CAP)
stroke.generator().line_cap(agg::square_cap);
else
stroke.generator().line_cap(agg::round_cap);
stroke.generator().miter_limit(4.0);
stroke.generator().width(stroke_.get_width() * scale_factor_);
ras_ptr->add_path(stroke);
if (writer.first) writer.first->add_line(path, feature, t_, writer.second);
}
}
}
ren.color(agg::rgba8(r, g, b, int(a*stroke_.get_opacity())));
agg::render_scanlines(*ras_ptr, sl, ren);
}
void agg_renderer<T0,T1>::process(line_symbolizer const& sym,
mapnik::feature_impl & feature,
proj_transform const& prj_trans)
{
color const& col = get<color, keys::stroke>(sym, feature, common_.vars_);
unsigned r=col.red();
unsigned g=col.green();
unsigned b=col.blue();
unsigned a=col.alpha();
double gamma = get<value_double, keys::stroke_gamma>(sym, feature, common_.vars_);
gamma_method_enum gamma_method = get<gamma_method_enum, keys::stroke_gamma_method>(sym, feature, common_.vars_);
ras_ptr->reset();
if (gamma != gamma_ || gamma_method != gamma_method_)
{
set_gamma_method(ras_ptr, gamma, gamma_method);
gamma_method_ = gamma_method;
gamma_ = gamma;
}
buffer_type & current_buffer = buffers_.top().get();
agg::rendering_buffer buf(current_buffer.bytes(), current_buffer.width(), current_buffer.height(), current_buffer.row_size());
using color_type = agg::rgba8;
using order_type = agg::order_rgba;
using blender_type = agg::comp_op_adaptor_rgba_pre<color_type, order_type>; // comp blender
using pixfmt_comp_type = agg::pixfmt_custom_blend_rgba<blender_type, agg::rendering_buffer>;
using renderer_base = agg::renderer_base<pixfmt_comp_type>;
pixfmt_comp_type pixf(buf);
pixf.comp_op(static_cast<agg::comp_op_e>(get<composite_mode_e, keys::comp_op>(sym, feature, common_.vars_)));
renderer_base renb(pixf);
agg::trans_affine tr;
auto transform = get_optional<transform_type>(sym, keys::geometry_transform);
if (transform) evaluate_transform(tr, feature, common_.vars_, *transform, common_.scale_factor_);
box2d<double> clip_box = clipping_extent(common_);
value_bool clip = get<value_bool, keys::clip>(sym, feature, common_.vars_);
value_double width = get<value_double, keys::stroke_width>(sym, feature, common_.vars_);
value_double opacity = get<value_double,keys::stroke_opacity>(sym,feature, common_.vars_);
value_double offset = get<value_double, keys::offset>(sym, feature, common_.vars_);
value_double simplify_tolerance = get<value_double, keys::simplify_tolerance>(sym, feature, common_.vars_);
value_double smooth = get<value_double, keys::smooth>(sym, feature, common_.vars_);
line_rasterizer_enum rasterizer_e = get<line_rasterizer_enum, keys::line_rasterizer>(sym, feature, common_.vars_);
if (clip)
{
double padding = static_cast<double>(common_.query_extent_.width() / common_.width_);
double half_stroke = 0.5 * width;
if (half_stroke > 1)
{
padding *= half_stroke;
}
if (std::fabs(offset) > 0)
{
padding *= std::fabs(offset) * 1.2;
}
padding *= common_.scale_factor_;
clip_box.pad(padding);
// debugging
//box2d<double> inverse = query_extent_;
//inverse.pad(-padding);
//draw_geo_extent(inverse,mapnik::color("red"));
}
if (rasterizer_e == RASTERIZER_FAST)
{
using renderer_type = agg::renderer_outline_aa<renderer_base>;
using rasterizer_type = agg::rasterizer_outline_aa<renderer_type>;
agg::line_profile_aa profile(width * common_.scale_factor_, agg::gamma_power(gamma));
renderer_type ren(renb, profile);
ren.color(agg::rgba8_pre(r, g, b, int(a * opacity)));
rasterizer_type ras(ren);
set_join_caps_aa(sym, ras, feature, common_.vars_);
using vertex_converter_type = vertex_converter<clip_line_tag, clip_poly_tag, transform_tag,
affine_transform_tag,
simplify_tag, smooth_tag,
offset_transform_tag>;
vertex_converter_type converter(clip_box,sym,common_.t_,prj_trans,tr,feature,common_.vars_,common_.scale_factor_);
if (clip)
{
geometry::geometry_types type = geometry::geometry_type(feature.get_geometry());
if (type == geometry::geometry_types::Polygon || type == geometry::geometry_types::MultiPolygon)
converter.template set<clip_poly_tag>();
else if (type == geometry::geometry_types::LineString || type == geometry::geometry_types::MultiLineString)
converter.template set<clip_line_tag>();
}
converter.set<transform_tag>(); // always transform
if (std::fabs(offset) > 0.0) converter.set<offset_transform_tag>(); // parallel offset
converter.set<affine_transform_tag>(); // optional affine transform
if (simplify_tolerance > 0.0) converter.set<simplify_tag>(); // optional simplify converter
if (smooth > 0.0) converter.set<smooth_tag>(); // optional smooth converter
using apply_vertex_converter_type = detail::apply_vertex_converter<vertex_converter_type, rasterizer_type>;
using vertex_processor_type = geometry::vertex_processor<apply_vertex_converter_type>;
apply_vertex_converter_type apply(converter, ras);
mapnik::util::apply_visitor(vertex_processor_type(apply),feature.get_geometry());
}
else
{
using vertex_converter_type = vertex_converter<clip_line_tag, clip_poly_tag, transform_tag,
affine_transform_tag,
simplify_tag, smooth_tag,
offset_transform_tag,
dash_tag, stroke_tag>;
vertex_converter_type converter(clip_box, sym,common_.t_,prj_trans,tr,feature,common_.vars_,common_.scale_factor_);
if (clip)
{
geometry::geometry_types type = geometry::geometry_type(feature.get_geometry());
if (type == geometry::geometry_types::Polygon || type == geometry::geometry_types::MultiPolygon)
converter.template set<clip_poly_tag>();
else if (type == geometry::geometry_types::LineString || type == geometry::geometry_types::MultiLineString)
converter.template set<clip_line_tag>();
}
converter.set<transform_tag>(); // always transform
if (std::fabs(offset) > 0.0) converter.set<offset_transform_tag>(); // parallel offset
converter.set<affine_transform_tag>(); // optional affine transform
if (simplify_tolerance > 0.0) converter.set<simplify_tag>(); // optional simplify converter
if (smooth > 0.0) converter.set<smooth_tag>(); // optional smooth converter
if (has_key(sym, keys::stroke_dasharray))
converter.set<dash_tag>();
converter.set<stroke_tag>(); //always stroke
using apply_vertex_converter_type = detail::apply_vertex_converter<vertex_converter_type, rasterizer>;
using vertex_processor_type = geometry::vertex_processor<apply_vertex_converter_type>;
apply_vertex_converter_type apply(converter, *ras_ptr);
mapnik::util::apply_visitor(vertex_processor_type(apply),feature.get_geometry());
using renderer_type = agg::renderer_scanline_aa_solid<renderer_base>;
renderer_type ren(renb);
ren.color(agg::rgba8_pre(r, g, b, int(a * opacity)));
agg::scanline_u8 sl;
ras_ptr->filling_rule(agg::fill_non_zero);
agg::render_scanlines(*ras_ptr, sl, ren);
}
}
virtual void on_draw()
{
double img_width = rbuf_img(0).width();
double img_height = rbuf_img(0).height();
typedef agg::pixfmt_bgr24 pixfmt;
typedef agg::renderer_base<pixfmt> renderer_base;
pixfmt pixf(rbuf_window());
pixfmt img_pixf(rbuf_img(0));
renderer_base rb(pixf);
rb.clear(agg::rgba(1.0, 1.0, 1.0));
agg::trans_affine src_mtx;
src_mtx *= agg::trans_affine_translation(-img_width/2, -img_height/2);
src_mtx *= agg::trans_affine_rotation(m_angle.value() * agg::pi / 180.0);
src_mtx *= agg::trans_affine_translation(img_width/2 + 10, img_height/2 + 10 + 40);
src_mtx *= trans_affine_resizing();
agg::trans_affine img_mtx;
img_mtx *= agg::trans_affine_translation(-img_width/2, -img_height/2);
img_mtx *= agg::trans_affine_rotation(m_angle.value() * agg::pi / 180.0);
img_mtx *= agg::trans_affine_scaling(m_scale.value());
img_mtx *= agg::trans_affine_translation(img_width/2 + 10, img_height/2 + 10 + 40);
img_mtx *= trans_affine_resizing();
img_mtx.invert();
typedef agg::span_allocator<agg::rgba8> span_alloc_type;
span_alloc_type sa;
typedef agg::span_interpolator_adaptor<agg::span_interpolator_linear<>,
periodic_distortion> interpolator_type;
periodic_distortion* dist = 0;
distortion_wave dist_wave;
distortion_swirl dist_swirl;
distortion_wave_swirl dist_wave_swirl;
distortion_swirl_wave dist_swirl_wave;
switch(m_distortion.cur_item())
{
case 0: dist = &dist_wave; break;
case 1: dist = &dist_swirl; break;
case 2: dist = &dist_wave_swirl; break;
case 3: dist = &dist_swirl_wave; break;
}
dist->period(m_period.value());
dist->amplitude(m_amplitude.value());
dist->phase(m_phase);
double cx = m_center_x;
double cy = m_center_y;
img_mtx.transform(&cx, &cy);
dist->center(cx, cy);
interpolator_type interpolator(img_mtx, *dist);
typedef agg::image_accessor_clip<pixfmt> img_source_type;
img_source_type img_src(img_pixf, agg::rgba(1,1,1));
/*
// Version without filtering (nearest neighbor)
//------------------------------------------
typedef agg::span_image_filter_rgb_nn<img_source_type,
interpolator_type> span_gen_type;
span_gen_type sg(img_src, interpolator);
//------------------------------------------
*/
// Version with "hardcoded" bilinear filter and without
// image_accessor (direct filter, the old variant)
//------------------------------------------
typedef agg::span_image_filter_rgb_bilinear_clip<pixfmt,
interpolator_type> span_gen_type;
span_gen_type sg(img_pixf, agg::rgba(1,1,1), interpolator);
//------------------------------------------
/*
// Version with arbitrary 2x2 filter
//------------------------------------------
typedef agg::span_image_filter_rgb_2x2<img_source_type,
interpolator_type> span_gen_type;
agg::image_filter<agg::image_filter_kaiser> filter;
span_gen_type sg(img_src, interpolator, filter);
//------------------------------------------
*/
/*
// Version with arbitrary filter
//------------------------------------------
typedef agg::span_image_filter_rgb<img_source_type,
interpolator_type> span_gen_type;
agg::image_filter<agg::image_filter_spline36> filter;
span_gen_type sg(img_src, interpolator, filter);
//------------------------------------------
*/
agg::rasterizer_scanline_aa<> ras;
agg::scanline_u8 sl;
double r = img_width;
if(img_height < r) r = img_height;
agg::ellipse ell(img_width / 2.0,
img_height / 2.0,
r / 2.0 - 20.0,
r / 2.0 - 20.0, 200);
agg::conv_transform<agg::ellipse> tr(ell, src_mtx);
ras.add_path(tr);
agg::render_scanlines_aa(ras, sl, rb, sa, sg);
src_mtx *= ~trans_affine_resizing();
src_mtx *= agg::trans_affine_translation(img_width - img_width/10, 0.0);
src_mtx *= trans_affine_resizing();
ras.add_path(tr);
agg::render_scanlines_aa_solid(ras, sl, rb, agg::rgba8(0,0,0));
typedef agg::span_gradient<agg::rgba8,
interpolator_type,
agg::gradient_circle,
color_array_type> gradient_span_gen;
agg::gradient_circle gradient_function;
color_array_type gradient_colors(m_gradient_colors);
gradient_span_gen span_gradient(interpolator,
gradient_function,
gradient_colors,
0, 180);
agg::trans_affine gr1_mtx;
gr1_mtx *= agg::trans_affine_translation(-img_width/2, -img_height/2);
gr1_mtx *= agg::trans_affine_scaling(0.8);
gr1_mtx *= agg::trans_affine_rotation(m_angle.value() * agg::pi / 180.0);
gr1_mtx *= agg::trans_affine_translation(img_width - img_width/10 + img_width/2 + 10,
img_height/2 + 10 + 40);
gr1_mtx *= trans_affine_resizing();
agg::trans_affine gr2_mtx;
gr2_mtx *= agg::trans_affine_rotation(m_angle.value() * agg::pi / 180.0);
gr2_mtx *= agg::trans_affine_scaling(m_scale.value());
gr2_mtx *= agg::trans_affine_translation(img_width - img_width/10 + img_width/2 + 10 + 50,
img_height/2 + 10 + 40 + 50);
gr2_mtx *= trans_affine_resizing();
gr2_mtx.invert();
cx = m_center_x + img_width - img_width/10;
cy = m_center_y;
gr2_mtx.transform(&cx, &cy);
dist->center(cx, cy);
interpolator.transformer(gr2_mtx);
agg::conv_transform<agg::ellipse> tr2(ell, gr1_mtx);
ras.add_path(tr2);
agg::render_scanlines_aa(ras, sl, rb, sa, span_gradient);
agg::render_ctrl(ras, sl, rb, m_angle);
agg::render_ctrl(ras, sl, rb, m_scale);
agg::render_ctrl(ras, sl, rb, m_amplitude);
agg::render_ctrl(ras, sl, rb, m_period);
agg::render_ctrl(ras, sl, rb, m_distortion);
}
void operator() (marker_svg const& marker) const
{
using color = agg::rgba8;
using order = agg::order_rgba;
using blender_type = agg::comp_op_adaptor_rgba_pre<color, order>;
using pattern_filter_type = agg::pattern_filter_bilinear_rgba8;
using pattern_type = agg::line_image_pattern<pattern_filter_type>;
using pixfmt_type = agg::pixfmt_custom_blend_rgba<blender_type, agg::rendering_buffer>;
using renderer_base = agg::renderer_base<pixfmt_type>;
using renderer_type = agg::renderer_outline_image<renderer_base, pattern_type>;
using rasterizer_type = agg::rasterizer_outline_aa<renderer_type>;
value_double opacity = get<value_double, keys::opacity>(sym_, feature_, common_.vars_);
agg::trans_affine image_tr = agg::trans_affine_scaling(common_.scale_factor_);
auto image_transform = get_optional<transform_type>(sym_, keys::image_transform);
if (image_transform) evaluate_transform(image_tr, feature_, common_.vars_, *image_transform, common_.scale_factor_);
mapnik::box2d<double> const& bbox_image = marker.get_data()->bounding_box() * image_tr;
image_rgba8 image(bbox_image.width(), bbox_image.height());
render_pattern<buffer_type>(*ras_ptr_, marker, image_tr, 1.0, image);
value_bool clip = get<value_bool, keys::clip>(sym_, feature_, common_.vars_);
value_double offset = get<value_double, keys::offset>(sym_, feature_, common_.vars_);
value_double simplify_tolerance = get<value_double, keys::simplify_tolerance>(sym_, feature_, common_.vars_);
value_double smooth = get<value_double, keys::smooth>(sym_, feature_, common_.vars_);
agg::rendering_buffer buf(current_buffer_->bytes(),current_buffer_->width(),current_buffer_->height(), current_buffer_->row_size());
pixfmt_type pixf(buf);
pixf.comp_op(static_cast<agg::comp_op_e>(get<composite_mode_e, keys::comp_op>(sym_, feature_, common_.vars_)));
renderer_base ren_base(pixf);
agg::pattern_filter_bilinear_rgba8 filter;
pattern_source source(image, opacity);
pattern_type pattern (filter,source);
renderer_type ren(ren_base, pattern);
double half_stroke = std::max(marker.width()/2.0,marker.height()/2.0);
int rast_clip_padding = static_cast<int>(std::round(half_stroke));
ren.clip_box(-rast_clip_padding,-rast_clip_padding,common_.width_+rast_clip_padding,common_.height_+rast_clip_padding);
rasterizer_type ras(ren);
agg::trans_affine tr;
auto transform = get_optional<transform_type>(sym_, keys::geometry_transform);
if (transform) evaluate_transform(tr, feature_, common_.vars_, *transform, common_.scale_factor_);
box2d<double> clip_box = clipping_extent(common_);
if (clip)
{
double padding = (double)(common_.query_extent_.width()/pixmap_.width());
if (half_stroke > 1)
padding *= half_stroke;
if (std::fabs(offset) > 0)
padding *= std::fabs(offset) * 1.2;
padding *= common_.scale_factor_;
clip_box.pad(padding);
}
using vertex_converter_type = vertex_converter<clip_line_tag, transform_tag,
affine_transform_tag,
simplify_tag,smooth_tag,
offset_transform_tag>;
vertex_converter_type converter(clip_box,sym_,common_.t_,prj_trans_,tr,feature_,common_.vars_,common_.scale_factor_);
if (clip) converter.set<clip_line_tag>();
converter.set<transform_tag>(); //always transform
if (simplify_tolerance > 0.0) converter.set<simplify_tag>(); // optional simplify converter
if (std::fabs(offset) > 0.0) converter.set<offset_transform_tag>(); // parallel offset
converter.set<affine_transform_tag>(); // optional affine transform
if (smooth > 0.0) converter.set<smooth_tag>(); // optional smooth converter
using apply_vertex_converter_type = detail::apply_vertex_converter<vertex_converter_type, rasterizer_type>;
using vertex_processor_type = geometry::vertex_processor<apply_vertex_converter_type>;
apply_vertex_converter_type apply(converter, ras);
mapnik::util::apply_visitor(vertex_processor_type(apply),feature_.get_geometry());
}
virtual void on_draw()
{
typedef agg::pixfmt_gray8 pixfmt_gray8;
typedef agg::renderer_base<pixfmt_gray8> ren_base_gray8;
m_ras.clip_box(0,0, width(), height());
pixfmt_gray8 pixf_gray8(m_gray8_rbuf);
ren_base_gray8 renb_gray8(pixf_gray8);
renb_gray8.clear(agg::gray8(0));
// Testing enhanced compositing operations.
// Uncomment and replace renb.blend_from_* to renb_blend.blend_from_*
//----------------
//typedef agg::comp_op_rgba_minus<color_type, component_order> blender_type;
//typedef agg::comp_adaptor_rgba<blender_type> blend_adaptor_type;
//typedef agg::pixfmt_custom_blend_rgba<blend_adaptor_type, agg::rendering_buffer> pixfmt_type;
//typedef agg::renderer_base<pixfmt_type> ren_base;
//pixfmt_type pixf_blend(rbuf_window());
//agg::renderer_base<pixfmt_type> renb_blend(pixf_blend);
pixfmt pixf(rbuf_window());
agg::renderer_base<pixfmt> renb(pixf);
renb.clear(agg::rgba(1, 0.95, 0.95));
agg::trans_perspective shadow_persp(m_shape_bounds.x1, m_shape_bounds.y1,
m_shape_bounds.x2, m_shape_bounds.y2,
m_shadow_ctrl.polygon());
agg::conv_transform<shape_type,
agg::trans_perspective> shadow_trans(m_shape,
shadow_persp);
start_timer();
// Render shadow
m_ras.add_path(shadow_trans);
agg::render_scanlines_aa_solid(m_ras, m_sl, renb_gray8, agg::gray8(255));
// Calculate the bounding box and extend it by the blur radius
agg::rect_d bbox;
agg::bounding_rect_single(shadow_trans, 0, &bbox.x1, &bbox.y1, &bbox.x2, &bbox.y2);
bbox.x1 -= m_radius.value();
bbox.y1 -= m_radius.value();
bbox.x2 += m_radius.value();
bbox.y2 += m_radius.value();
if(bbox.clip(agg::rect_d(0, 0, width(), height())))
{
// Create a new pixel renderer and attach it to the main one as a child image.
// It returns true if the attachment suceeded. It fails if the rectangle
// (bbox) is fully clipped.
//------------------
pixfmt_gray8 pixf2(m_gray8_rbuf2);
if(pixf2.attach(pixf_gray8, int(bbox.x1), int(bbox.y1), int(bbox.x2), int(bbox.y2)))
{
// Blur it
agg::stack_blur_gray8(pixf2, agg::uround(m_radius.value()),
agg::uround(m_radius.value()));
}
if(m_method.cur_item() == 0)
{
renb.blend_from_color(pixf2,
agg::rgba8(0, 100, 0),
0,
int(bbox.x1),
int(bbox.y1));
}
else
{
renb.blend_from_lut(pixf2,
m_color_lut.data(),
0,
int(bbox.x1),
int(bbox.y1));
}
}
double tm = elapsed_time();
char buf[64];
agg::gsv_text t;
t.size(10.0);
agg::conv_stroke<agg::gsv_text> st(t);
st.width(1.5);
sprintf(buf, "%3.2f ms", tm);
t.start_point(140.0, 30.0);
t.text(buf);
m_ras.add_path(st);
agg::render_scanlines_aa_solid(m_ras, m_sl, renb, agg::rgba(0,0,0));
agg::render_ctrl(m_ras, m_sl, renb, m_method);
agg::render_ctrl(m_ras, m_sl, renb, m_radius);
agg::render_ctrl(m_ras, m_sl, renb, m_shadow_ctrl);
}