void render_raster_marker(RendererType ren,
RasterizerType & ras,
image_data_rgba8 & src,
mapnik::feature_impl const& feature,
agg::trans_affine const& marker_tr,
double opacity)
{
using color_type = typename RendererType::color_type;
agg::scanline_bin sl;
double width = src.width();
double height = src.height();
double p[8];
p[0] = 0; p[1] = 0;
p[2] = width; p[3] = 0;
p[4] = width; p[5] = height;
p[6] = 0; p[7] = height;
marker_tr.transform(&p[0], &p[1]);
marker_tr.transform(&p[2], &p[3]);
marker_tr.transform(&p[4], &p[5]);
marker_tr.transform(&p[6], &p[7]);
ras.move_to_d(p[0],p[1]);
ras.line_to_d(p[2],p[3]);
ras.line_to_d(p[4],p[5]);
ras.line_to_d(p[6],p[7]);
ren.color(color_type(feature.id()));
agg::render_scanlines(ras, sl, ren);
}
void CAggMemoryDC::Rect(
const GraphTypes::PointF& tl,
const GraphTypes::PointF& br,
const GraphTypes::Color& clrfill,
const GraphTypes::Color& clroutline,
GraphTypes::REAL outline_width/*=1.0*/,
bool bAA/*=false*/)
{
if (m_buf==0)
return;
if(bAA)
{
PointF points[4];
points[0].x=tl.x;
points[0].y=tl.y;
points[1].x=br.x;
points[1].y=tl.y;
points[2].x=br.x;
points[2].y=br.y;
points[3].x=tl.x;
points[3].y=br.y;
SolidPolygon(points, clrfill, 4, outline_width, clroutline);
}
else
{
pixel_format pixf(m_rbuf);
ren_base renb(pixf);
primitive_renderer pren(renb);
pren.fill_color(agg::rgba8(
clrfill.GetR(),
clrfill.GetG(),
clrfill.GetB(),
clrfill.GetA()));
pren.line_color(agg::rgba8(
clroutline.GetR(),
clroutline.GetG(),
clroutline.GetB(),
clroutline.GetA()));
double topx(tl.x), topy(tl.y), bottomx(br.x), bottomy(br.y);
m_mtx.transform(&topx,&topy);
m_mtx.transform(&bottomx,&bottomy);
int x1=round_int(topx);
int y1=round_int(topy);
int x2=round_int(bottomx);
int y2=round_int(bottomy);
pren.solid_rectangle(x1, y1, x2, y2);
pren.rectangle(x1, y1, x2, y2);
}
}
void on_mouse_button_down(int x, int y, unsigned flags)
{
if(flags & 1)
{
double xd = x;
double yd = y;
double r = 4.0 / m_scale.scale();
m_scale.inverse_transform(&xd, &yd);
m_point_idx = m_shape.hit_test(xd, yd, r);
force_redraw();
}
}
box2d<T>::box2d(const box2d_type &rhs, const agg::trans_affine& tr)
{
double x0 = rhs.minx_, y0 = rhs.miny_;
double x1 = rhs.maxx_, y1 = rhs.miny_;
double x2 = rhs.maxx_, y2 = rhs.maxy_;
double x3 = rhs.minx_, y3 = rhs.maxy_;
tr.transform(&x0, &y0);
tr.transform(&x1, &y1);
tr.transform(&x2, &y2);
tr.transform(&x3, &y3);
init(x0, y0, x2, y2);
expand_to_include(x1, y1);
expand_to_include(x3, y3);
}
void CAggMemoryDC::Line(
const PointF& p1,
const PointF& p2,
const Color& clr)
{
if (m_buf==0)
return;
CPoint _p1 = p1;
CPoint _p2 = p2;
pixel_format pixf(m_rbuf);
ren_base renb(pixf);
outline_renderer outline_rd(renb, s_lineprof);
outline_rasterizer_aa outline_rt(outline_rd);
outline_rd.profile(s_lineprof);
outline_rd.color(agg::rgba8(clr.GetR(), clr.GetG(), clr.GetB(), clr.GetA()));
outline_rd.clip_box(0, 0, m_rcUpdate.Width(), m_rcUpdate.Height());
double p1x(p1.x), p1y(p1.y), p2x(p2.x), p2y(p2.y);
m_mtx.transform(&p1x,&p1y);
m_mtx.transform(&p2x,&p2y);
outline_rt.move_to_d(p1x, p1y);
outline_rt.line_to_d(p2x, p2y);
//outline_rt.round_cap( 1 );
outline_rt.render(false);
}
bool only_translation(agg::trans_affine& mat, double epsilon)
{
double temp[6];
mat.store_to(temp);
return (f_eq(temp[0], 1.0) && f_eq(temp[1], 0.0) &&
f_eq(temp[2], 0.0) && f_eq(temp[3], 1.0));
}
void get_translation(agg::trans_affine& m, double* tx, double* ty)
{
double temp[6];
m.store_to(temp);
*tx = temp[4];
*ty = temp[5];
}
void cairo_context::add_image(agg::trans_affine const& tr, image_rgba8 const& data, double opacity)
{
cairo_pattern pattern(data);
if (!tr.is_identity())
{
double m[6];
tr.store_to(m);
cairo_matrix_t cairo_matrix;
cairo_matrix_init(&cairo_matrix,m[0],m[1],m[2],m[3],m[4],m[5]);
cairo_matrix_invert(&cairo_matrix);
pattern.set_matrix(cairo_matrix);
}
cairo_save(cairo_.get());
cairo_set_source(cairo_.get(), const_cast<cairo_pattern_t*>(pattern.pattern()));
cairo_paint_with_alpha(cairo_.get(), opacity);
cairo_restore(cairo_.get());
check_object_status_and_throw_exception(*this);
}
void get_scale(agg::trans_affine& m, double* dx, double* dy)
{
{
double temp[6];
m.store_to(temp);
*dx = temp[0];
*dy = temp[3];
}
}
void
trans_affine_compose(agg::trans_affine& a, const agg::trans_affine& b)
{
double a_tx = a.tx, a_ty = a.ty;
a.premultiply(b);
a.tx = b.sx * a_tx + b.shx * a_ty + b.tx;
a.ty = b.shy * a_tx + b.sy * a_ty + b.ty;
}
bool is_identity(agg::trans_affine& mat, double epsilon)
{
double temp[6];
mat.store_to(temp);
return (f_eq(temp[0], 1.0) && f_eq(temp[1], 0.0) &&
f_eq(temp[2], 0.0) && f_eq(temp[3], 1.0) &&
f_eq(temp[4], 0.0) && f_eq(temp[5], 0.0));
// return (temp[0] == 1.0 && temp[1] == 0.0 &&
// temp[2] == 0.0 && temp[3] == 1.0 &&
// temp[4] == 0.0 && temp[5] == 0.0);
}
void render_raster_marker(agg::trans_affine const& marker_tr)
{
double width = src_.width();
double height = src_.height();
double p[8];
p[0] = 0; p[1] = 0;
p[2] = width; p[3] = 0;
p[4] = width; p[5] = height;
p[6] = 0; p[7] = height;
marker_tr.transform(&p[0], &p[1]);
marker_tr.transform(&p[2], &p[3]);
marker_tr.transform(&p[4], &p[5]);
marker_tr.transform(&p[6], &p[7]);
ras_.move_to_d(p[0],p[1]);
ras_.line_to_d(p[2],p[3]);
ras_.line_to_d(p[4],p[5]);
ras_.line_to_d(p[6],p[7]);
RendererType ren(renb_);
ren.color(color_type(feature_.id()));
agg::render_scanlines(ras_, sl_, ren);
}
void render_raster_marker(agg::trans_affine const& marker_tr,
double opacity)
{
double width = src_.width();
double height = src_.height();
double p[8];
p[0] = 0; p[1] = 0;
p[2] = width; p[3] = 0;
p[4] = width; p[5] = height;
p[6] = 0; p[7] = height;
marker_tr.transform(&p[0], &p[1]);
marker_tr.transform(&p[2], &p[3]);
marker_tr.transform(&p[4], &p[5]);
marker_tr.transform(&p[6], &p[7]);
ras_.move_to_d(p[0],p[1]);
ras_.line_to_d(p[2],p[3]);
ras_.line_to_d(p[4],p[5]);
ras_.line_to_d(p[6],p[7]);
agg::span_allocator<color_type> sa;
agg::image_filter_bilinear filter_kernel;
agg::image_filter_lut filter(filter_kernel, false);
agg::rendering_buffer marker_buf((unsigned char *)src_.getBytes(),
src_.width(),
src_.height(),
src_.width()*4);
agg::pixfmt_rgba32_pre pixf(marker_buf);
typedef agg::image_accessor_clone<agg::pixfmt_rgba32_pre> img_accessor_type;
typedef agg::span_interpolator_linear<agg::trans_affine> interpolator_type;
typedef agg::span_image_filter_rgba_2x2<img_accessor_type,
interpolator_type> span_gen_type;
typedef agg::renderer_scanline_aa_alpha<renderer_base,
agg::span_allocator<color_type>,
span_gen_type> renderer_type;
img_accessor_type ia(pixf);
interpolator_type interpolator(agg::trans_affine(p, 0, 0, width, height) );
span_gen_type sg(ia, interpolator, filter);
renderer_type rp(renb_,sa, sg, unsigned(opacity*255));
agg::render_scanlines(ras_, sl_, rp);
}
void pathAttr::apply(agg::path_storage* path, const agg::trans_affine& tr, double accuracy)
{
double scale = sqrt(fabs(tr.determinant()));
if (mCommand == stroke) {
if (mIsoWidthFlag) {
trans.attach(*path);
trans.transformer(tr);
transCurvedStroked.width(mStrokeWidth * scale);
transCurvedStroked.line_join(mLineJoin);
transCurvedStroked.line_cap(mLineCap);
transCurvedStroked.miter_limit(mMiterLimit);
transCurvedStroked.inner_join(agg::inner_round);
transCurvedStroked.approximation_scale(accuracy);
transCurved.approximation_scale(accuracy);
// If the *visual* line width is considerable we
// turn on processing of curve cusps.
//---------------------
if (mStrokeWidth * scale > 1.0) {
transCurved.angle_tolerance(0.2);
} else {
transCurved.angle_tolerance(0.0);
}
} else {
curved.attach(*path);
curvedStrokedTrans.transformer(tr);
curvedStroked.width(mStrokeWidth);
curvedStroked.line_join(mLineJoin);
curvedStroked.line_cap(mLineCap);
curvedStroked.miter_limit(mMiterLimit);
curvedStroked.inner_join(agg::inner_round);
curvedStroked.approximation_scale(accuracy * scale);
curved.approximation_scale(accuracy * scale);
// If the *visual* line width is considerable we
// turn on processing of curve cusps.
//---------------------
if (mStrokeWidth * scale > 1.0) {
curved.angle_tolerance(0.2);
} else {
curved.angle_tolerance(0.0);
}
}
} else {
trans.attach(*path);
trans.transformer(tr);
transCurved.approximation_scale(accuracy);
}
}
void on_mouse_move(int x, int y, unsigned flags)
{
if((flags & 1) == 0)
{
on_mouse_button_up(x, y, flags);
}
else
{
if(m_point_idx >= 0)
{
double xd = x;
double yd = y;
m_scale.inverse_transform(&xd, &yd);
m_shape.modify_vertex(m_point_idx, xd, yd);
force_redraw();
}
}
}
//-----------------------------------------------------------------------------
int CAggMemoryDC::SetDIBitsToDevice(
int x,
int y,
DWORD dwWidth,
DWORD dwHeight,
int xSrc,
int ySrc,
UINT uStartScan,
UINT cScanLines,
CONST VOID* lpvBits,
CONST BITMAPINFO* lpbmi,
UINT uColorUse)
{
double dx = x;
double dy = y;
m_mtx.transform(&dx,&dy);
return ::SetDIBitsToDevice(m_hDC, x, y, dwWidth, dwHeight, xSrc, ySrc, uStartScan, cScanLines, lpvBits, lpbmi, uColorUse);
}
Bounds::Bounds(const agg::trans_affine& trans,
agg::path_storage* path, pathAttr* attr, double dilation,
double scale)
{
double centx = attr->mCentroid.x;
double centy = attr->mCentroid.y;
trans.transform(¢x, ¢y);
mValid = attr->boundingRect(path, trans, mMin_X, mMin_Y, mMax_X, mMax_Y, scale);
if (mValid && mMin_X <= centx && mMax_X >= centx &&
mMin_Y <= centy && mMax_Y >= centy && dilation != 1.0)
{
mMin_X = dilation * (mMin_X - centx) + centx;
mMax_X = dilation * (mMax_X - centx) + centx;
mMin_Y = dilation * (mMin_Y - centy) + centy;
mMax_Y = dilation * (mMax_Y - centy) + centy;
}
}
void SelectionScanlineSweeper::DrawImpl_rgb(agg::rect_d rect, RenderingData *data, unsigned int width, unsigned int height, int stride,
agg::trans_affine const &mtx, agg::trans_affine const &viewport_mtx) {
//ScanlineSource source(data);
typedef agg::pixfmt_alpha_blend_rgb<agg::blender_rgb<agg::rgba8, agg::order_rgb>, agg::scanline_accessor> pixfmt_type;
typedef pixfmt_type::color_type color_type;
typedef color_type::value_type value_type;
typedef agg::renderer_base<pixfmt_type> renderer_base;
typedef agg::renderer_scanline_aa_solid<renderer_base> renderer_solid;
agg::rasterizer_scanline_aa<> l_rasterizer;
agg::scanline_u8 l_scanline;
//pixfmt_type pixfmt(agg::scanline_accessor(&source, ScanlineSource::get_scanline, width, height, stride));
pixfmt_type pixfmt((agg::scanline_accessor(data)));
renderer_base rb(pixfmt);
l_rasterizer.clip_box(0.0, 0.0, width, height);
l_rasterizer.filling_rule(agg::fill_non_zero);
if (flip_y) {
mtx.transform(&rect.x1, &rect.y1);
mtx.transform(&rect.x2, &rect.y2);
}
double vertexes[] = {
rect.x1, rect.y2,
rect.x1, rect.y1,
rect.x2, rect.y1,
rect.x2, rect.y2
};
agg::test_vertex_source vertex_source(vertexes, 4);
agg::conv_transform<agg::test_vertex_source> vertex_source_converted(vertex_source, viewport_mtx);
l_rasterizer.add_path(vertex_source_converted);
renderer_solid r(rb);
{
r.color(color);
agg::render_scanlines(l_rasterizer, l_scanline, r);
}
}
unsigned CAggMemoryDC::DrawScaledText(
const TCHAR* text,
const GraphTypes::RectF& rc,
const GraphTypes::Color& clr,
const char* font,
int size,
const PointF & descsubtract)
{
if (m_buf==0)
return 0;
unsigned len=0;
pixel_format pixf(m_rbuf);
ren_base renb(pixf);
solid_renderer ren_solid(renb);
ATLASSERT(m_buf);
conv_font_curve_type fcurves(m_fonts->m_fman.path_adaptor());
conv_font_segm_type fsegm(fcurves);
conv_font_trans_type ftrans(fsegm, m_mtx);
// fsegm.approximation_scale(3.0);
// fcurves.approximation_scale(2.0);
m_fonts->m_feng.flip_y(true);
m_fonts->m_feng.hinting(true);
if(m_fonts->m_feng.create_font(
font,
agg::glyph_ren_outline,
size,
0.0,
FW_NORMAL,
false,
ANSI_CHARSET,
DEFAULT_PITCH | FF_SWISS
))
{
double x = 0.0;
double y = 0.0;
const TCHAR* p = text;
TEXTMETRIC tm;
GetTextMetrics(&tm);
//double descent=(tm.tmDescent>descsubtract.y)?(tm.tmDescent-descsubtract.y):(tm.tmDescent-1);
//ATLASSERT(tm.tmDescent>descsubtract.y);
//ATLASSERT(descent>0);
//descent *= m_mtx.scale();
//m_mtx *= agg::trans_affine_translation(rc.x-m_rcUpdate.left, rc.y+rc.Height-descent-m_rcUpdate.top);
double ascent=tm.tmAscent-descsubtract.y;
ATLASSERT(ascent>0.0f);
ascent *= m_mtx.scale();
m_mtx *= agg::trans_affine_translation(rc.x-m_rcUpdate.left, rc.y+ascent-m_rcUpdate.top);
ren_solid.color(agg::rgba8(clr.GetR(), clr.GetG(), clr.GetB(), clr.GetA()));
while(*p)
{
const agg::glyph_cache* glyph = m_fonts->m_fman.glyph(*p);
if(glyph)
{
m_fonts->m_fman.add_kerning(&x, &y);
m_fonts->m_fman.init_embedded_adaptors(glyph, x, y);
if(glyph->data_type == agg::glyph_data_outline)
{
m_ras_aa.add_path(ftrans);
}
// increment pen position
x += glyph->advance_x;
y += glyph->advance_y;
}
++p;
++len;
}
agg::render_scanlines(m_ras_aa, m_sl, ren_solid);
ATLASSERT(m_buf);
}
return len;
}
void render_raster_marker(agg::trans_affine const& marker_tr,
double opacity)
{
using pixfmt_pre = agg::pixfmt_rgba32_pre;
agg::scanline_u8 sl_;
double width = src_.width();
double height = src_.height();
if (std::fabs(1.0 - scale_factor_) < 0.001
&& (std::fabs(1.0 - marker_tr.sx) < agg::affine_epsilon)
&& (std::fabs(0.0 - marker_tr.shy) < agg::affine_epsilon)
&& (std::fabs(0.0 - marker_tr.shx) < agg::affine_epsilon)
&& (std::fabs(1.0 - marker_tr.sy) < agg::affine_epsilon))
{
agg::rendering_buffer src_buffer((unsigned char *)src_.getBytes(),src_.width(),src_.height(),src_.width() * 4);
pixfmt_pre pixf_mask(src_buffer);
if (snap_to_pixels_)
{
renb_.blend_from(pixf_mask,
0,
std::floor(marker_tr.tx + .5),
std::floor(marker_tr.ty + .5),
unsigned(255*opacity));
}
else
{
renb_.blend_from(pixf_mask,
0,
marker_tr.tx,
marker_tr.ty,
unsigned(255*opacity));
}
}
else
{
using img_accessor_type = agg::image_accessor_clone<pixfmt_pre>;
using interpolator_type = agg::span_interpolator_linear<>;
//using span_gen_type = agg::span_image_filter_rgba_2x2<img_accessor_type,interpolator_type>;
using span_gen_type = agg::span_image_resample_rgba_affine<img_accessor_type>;
using renderer_type = agg::renderer_scanline_aa_alpha<renderer_base,
agg::span_allocator<color_type>,
span_gen_type>;
double p[8];
p[0] = 0; p[1] = 0;
p[2] = width; p[3] = 0;
p[4] = width; p[5] = height;
p[6] = 0; p[7] = height;
marker_tr.transform(&p[0], &p[1]);
marker_tr.transform(&p[2], &p[3]);
marker_tr.transform(&p[4], &p[5]);
marker_tr.transform(&p[6], &p[7]);
agg::span_allocator<color_type> sa;
agg::image_filter_lut filter;
filter.calculate(agg::image_filter_bilinear(), true);
agg::rendering_buffer marker_buf((unsigned char *)src_.getBytes(),
src_.width(),
src_.height(),
src_.width()*4);
pixfmt_pre pixf(marker_buf);
img_accessor_type ia(pixf);
agg::trans_affine final_tr(p, 0, 0, width, height);
if (snap_to_pixels_)
{
final_tr.tx = std::floor(final_tr.tx+.5);
final_tr.ty = std::floor(final_tr.ty+.5);
}
interpolator_type interpolator(final_tr);
span_gen_type sg(ia, interpolator, filter);
renderer_type rp(renb_,sa, sg, unsigned(opacity*255));
ras_.move_to_d(p[0],p[1]);
ras_.line_to_d(p[2],p[3]);
ras_.line_to_d(p[4],p[5]);
ras_.line_to_d(p[6],p[7]);
agg::render_scanlines(ras_, sl_, rp);
}
}
bool CAggMemoryDC::DrawTransparent(
HBITMAP hBitmap,
int x,
int y,
int width,
int height,
int bmpWidth,
int bmpHeight,
COLORREF color)
{
ATLASSERT(width>0&&height>0);
double dx = x;
double dy = y;
m_mtx.transform(&dx,&dy);
CDC dcImage;
bool bOk=dcImage.CreateCompatibleDC(m_hDC) != NULL;
HBITMAP oldbmp=dcImage.SelectBitmap(hBitmap);
// if OS supports non-leaky TransparentBlt use it (also on printer)
if(s_bTransOk)
{
#ifndef _WIN32_WCE
bOk=TransparentBlt(x, y, width, height, dcImage, 0, 0, bmpWidth, bmpHeight, color) != 0;
if (!bOk) // just in case (e.g. printing), try emulation
goto tryEmulate;
#endif
}
else
{
tryEmulate:
CBitmap bmpMono;
bOk=bmpMono.CreateBitmap(width, height, 1, 1, NULL) != NULL;
if (!bOk)
return bOk;
CDC dcMono;
// Create dc for the mask
bOk = dcMono.CreateCompatibleDC(m_hDC) != NULL;
if (!bOk)
return bOk;
// Select the mask bitmap into its dc
HBITMAP oldBitmapMono = (HBITMAP)::SelectObject(dcMono, bmpMono);
if(bOk)
{
// Build mask based on transparent colour
COLORREF crOldImg=dcImage.SetBkColor(color);
bOk=dcMono.StretchBlt(0, 0, width, height, dcImage, 0, 0, bmpWidth, bmpHeight, SRCCOPY) != 0;
dcImage.SetBkColor(crOldImg);
// True Mask method - no flicker if destination is not actual display
if(bOk)
bOk=StretchBlt(x, y, width, height, dcImage, 0, 0, bmpWidth, bmpHeight, SRCINVERT) != 0;
if(bOk)
{
// setup the destination for monochrome blit
COLORREF crOldBack = SetBkColor(RGB(255,255,255));
COLORREF crOldText = SetTextColor(RGB(0,0,0));
bOk=BitBlt(x, y, width, height, dcMono, 0, 0, SRCAND) != 0;
SetBkColor(crOldBack);
SetTextColor(crOldText);
}
if(bOk)
bOk=StretchBlt(x, y, width, height, dcImage, 0, 0, bmpWidth, bmpHeight, SRCINVERT) != 0;
}
dcMono.SelectBitmap(oldBitmapMono);
}
dcImage.SelectBitmap(oldbmp);
return bOk;
}
virtual void on_draw()
{
typedef agg::renderer_base<pixfmt_pre> renderer_base;
typedef agg::renderer_scanline_aa_solid<renderer_base> renderer_scanline;
typedef agg::scanline_u8 scanline;
pixfmt_pre pixf(rbuf_window());
renderer_base ren_base(pixf);
ren_base.clear(agg::rgba(1.0, 1.0, 0.95));
renderer_scanline ren(ren_base);
agg::rasterizer_scanline_aa<agg::rasterizer_sl_clip_dbl> ras;
agg::scanline_u8 sl;
agg::conv_transform<agg::compound_shape> shape(m_shape, m_scale);
agg::conv_stroke<agg::conv_transform<agg::compound_shape> > stroke(shape);
m_shape.approximation_scale(m_scale.scale());
unsigned i;
agg::path_storage tmp_path;
ras.clip_box(0, 0, width(), height());
// This is an alternative method of Flash rasterization.
// We decompose the compound shape into separate paths
// and select the ones that fit the given style (left or right).
// So that, we form a sub-shape and draw it as a whole.
//
// Here the regular scanline rasterizer is used, but it doesn't
// automatically close the polygons. So that, the rasterizer
// actually works with a set of polylines instead of polygons.
// Of course, the data integrity must be preserved, that is,
// the polylines must eventually form a closed contour
// (or a set of closed contours). So that, first we set
// auto_close(false);
//
// The second important thing is that one path can be rasterized
// twice, if it has both, left and right fill. Sometimes the
// path has equal left and right fill, so that, the same path
// will be added twice even for a single sub-shape. If the
// rasterizer can tolerate these degenerates you can add them,
// but it's also fine just to omit them.
//
// The third thing is that for one side (left or right)
// you should invert the direction of the paths.
//
// The main disadvantage of this method is imperfect stitching
// of the adjacent polygons. The problem can be solved if we use
// compositing operation "plus" instead of alpha-blend. But
// in this case we are forced to use an RGBA buffer, clean it with
// zero, rasterize using "plus" operation, and then alpha-blend
// the result over the final scene. It can be too expensive.
//------------------------------------------------------------
ras.auto_close(false);
//ras.filling_rule(agg::fill_even_odd);
start_timer();
for(int s = m_shape.min_style(); s <= m_shape.max_style(); s++)
{
ras.reset();
for(i = 0; i < m_shape.paths(); i++)
{
const agg::path_style& style = m_shape.style(i);
if(style.left_fill != style.right_fill)
{
if(style.left_fill == s)
{
ras.add_path(shape, style.path_id);
}
if(style.right_fill == s)
{
tmp_path.remove_all();
tmp_path.concat_path(shape, style.path_id);
tmp_path.invert_polygon(0);
ras.add_path(tmp_path);
}
}
}
agg::render_scanlines_aa_solid(ras, sl, ren_base, m_colors[s]);
}
double tfill = elapsed_time();
ras.auto_close(true);
// Draw strokes
//----------------------
start_timer();
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::srgba8(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);
}
void render_raster_marker(RendererType renb, RasterizerType & ras, image_rgba8 const& src,
agg::trans_affine const& tr, double opacity,
float scale_factor, bool snap_to_pixels)
{
using color_type = agg::rgba8;
using const_rendering_buffer = util::rendering_buffer<image_rgba8>;
using pixfmt_pre = agg::pixfmt_alpha_blend_rgba<agg::blender_rgba32_pre, const_rendering_buffer, agg::pixel32_type>;
agg::scanline_u8 sl;
double width = src.width();
double height = src.height();
if (std::fabs(1.0 - scale_factor) < 0.001
&& (std::fabs(1.0 - tr.sx) < agg::affine_epsilon)
&& (std::fabs(0.0 - tr.shy) < agg::affine_epsilon)
&& (std::fabs(0.0 - tr.shx) < agg::affine_epsilon)
&& (std::fabs(1.0 - tr.sy) < agg::affine_epsilon))
{
const_rendering_buffer src_buffer(src);
pixfmt_pre pixf_mask(src_buffer);
if (snap_to_pixels)
{
renb.blend_from(pixf_mask,
0,
static_cast<int>(std::floor(tr.tx + .5)),
static_cast<int>(std::floor(tr.ty + .5)),
unsigned(255*opacity));
}
else
{
renb.blend_from(pixf_mask,
0,
static_cast<int>(tr.tx),
static_cast<int>(tr.ty),
unsigned(255*opacity));
}
}
else
{
using img_accessor_type = agg::image_accessor_clone<pixfmt_pre>;
using interpolator_type = agg::span_interpolator_linear<>;
//using span_gen_type = agg::span_image_filter_rgba_2x2<img_accessor_type,interpolator_type>;
using span_gen_type = agg::span_image_resample_rgba_affine<img_accessor_type>;
using renderer_type = agg::renderer_scanline_aa_alpha<RendererType,
agg::span_allocator<color_type>,
span_gen_type>;
double p[8];
p[0] = 0; p[1] = 0;
p[2] = width; p[3] = 0;
p[4] = width; p[5] = height;
p[6] = 0; p[7] = height;
tr.transform(&p[0], &p[1]);
tr.transform(&p[2], &p[3]);
tr.transform(&p[4], &p[5]);
tr.transform(&p[6], &p[7]);
agg::span_allocator<color_type> sa;
agg::image_filter_lut filter;
filter.calculate(agg::image_filter_bilinear(), true);
const_rendering_buffer src_buffer(src);
pixfmt_pre pixf(src_buffer);
img_accessor_type ia(pixf);
agg::trans_affine final_tr(p, 0, 0, width, height);
if (snap_to_pixels)
{
final_tr.tx = std::floor(final_tr.tx+.5);
final_tr.ty = std::floor(final_tr.ty+.5);
}
interpolator_type interpolator(final_tr);
span_gen_type sg(ia, interpolator, filter);
renderer_type rp(renb, sa, sg, unsigned(opacity*255));
ras.move_to_d(p[0],p[1]);
ras.line_to_d(p[2],p[3]);
ras.line_to_d(p[4],p[5]);
ras.line_to_d(p[6],p[7]);
agg::render_scanlines(ras, sl, rp);
}
}
void TransformReset() { m_mtx.reset(); }
void agg_renderer<T0,T1>::render_marker(pixel_position const& pos,
marker const& marker,
agg::trans_affine const& tr,
double opacity,
composite_mode_e comp_op)
{
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>;
using renderer_type = agg::renderer_scanline_aa_solid<renderer_base>;
using svg_attribute_type = agg::pod_bvector<mapnik::svg::path_attributes>;
ras_ptr->reset();
if (gamma_method_ != GAMMA_POWER || gamma_ != 1.0)
{
ras_ptr->gamma(agg::gamma_power());
gamma_method_ = GAMMA_POWER;
gamma_ = 1.0;
}
agg::scanline_u8 sl;
agg::rendering_buffer buf(current_buffer_->raw_data(),
current_buffer_->width(),
current_buffer_->height(),
current_buffer_->width() * 4);
pixfmt_comp_type pixf(buf);
pixf.comp_op(static_cast<agg::comp_op_e>(comp_op));
renderer_base renb(pixf);
if (marker.is_vector())
{
box2d<double> const& bbox = (*marker.get_vector_data())->bounding_box();
coord<double,2> c = bbox.center();
// center the svg marker on '0,0'
agg::trans_affine mtx = agg::trans_affine_translation(-c.x,-c.y);
// apply symbol transformation to get to map space
mtx *= tr;
mtx *= agg::trans_affine_scaling(common_.scale_factor_);
// render the marker at the center of the marker box
mtx.translate(pos.x, pos.y);
using namespace mapnik::svg;
vertex_stl_adapter<svg_path_storage> stl_storage((*marker.get_vector_data())->source());
svg_path_adapter svg_path(stl_storage);
svg_renderer_agg<svg_path_adapter,
svg_attribute_type,
renderer_type,
pixfmt_comp_type> svg_renderer(svg_path,
(*marker.get_vector_data())->attributes());
svg_renderer.render(*ras_ptr, sl, renb, mtx, opacity, bbox);
}
else
{
double width = (*marker.get_bitmap_data())->width();
double height = (*marker.get_bitmap_data())->height();
if (std::fabs(1.0 - common_.scale_factor_) < 0.001 && tr.is_identity())
{
double cx = 0.5 * width;
double cy = 0.5 * height;
composite(current_buffer_->data(), **marker.get_bitmap_data(),
comp_op, opacity,
boost::math::iround(pos.x - cx),
boost::math::iround(pos.y - cy),
false);
}
else
{
double p[8];
double x0 = pos.x - 0.5 * width;
double y0 = pos.y - 0.5 * height;
p[0] = x0; p[1] = y0;
p[2] = x0 + width; p[3] = y0;
p[4] = x0 + width; p[5] = y0 + height;
p[6] = x0; p[7] = y0 + height;
agg::trans_affine marker_tr;
marker_tr *= agg::trans_affine_translation(-pos.x,-pos.y);
marker_tr *= tr;
marker_tr *= agg::trans_affine_scaling(common_.scale_factor_);
marker_tr *= agg::trans_affine_translation(pos.x,pos.y);
marker_tr.transform(&p[0], &p[1]);
marker_tr.transform(&p[2], &p[3]);
marker_tr.transform(&p[4], &p[5]);
marker_tr.transform(&p[6], &p[7]);
ras_ptr->move_to_d(p[0],p[1]);
ras_ptr->line_to_d(p[2],p[3]);
ras_ptr->line_to_d(p[4],p[5]);
ras_ptr->line_to_d(p[6],p[7]);
agg::span_allocator<color_type> sa;
agg::image_filter_bilinear filter_kernel;
agg::image_filter_lut filter(filter_kernel, false);
image_data_32 const& src = **marker.get_bitmap_data();
agg::rendering_buffer marker_buf((unsigned char *)src.getBytes(),
src.width(),
src.height(),
src.width()*4);
agg::pixfmt_rgba32_pre marker_pixf(marker_buf);
using img_accessor_type = agg::image_accessor_clone<agg::pixfmt_rgba32_pre>;
using interpolator_type = agg::span_interpolator_linear<agg::trans_affine>;
using span_gen_type = agg::span_image_filter_rgba_2x2<img_accessor_type,
interpolator_type>;
using renderer_type = agg::renderer_scanline_aa_alpha<renderer_base,
agg::span_allocator<agg::rgba8>,
span_gen_type>;
img_accessor_type ia(marker_pixf);
interpolator_type interpolator(agg::trans_affine(p, 0, 0, width, height) );
span_gen_type sg(ia, interpolator, filter);
renderer_type rp(renb,sa, sg, unsigned(opacity*255));
agg::render_scanlines(*ras_ptr, sl, rp);
}
}
}
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);
}
}
void grid_renderer<T>::render_marker(mapnik::feature_impl & feature, unsigned int step, pixel_position const& pos, marker const& marker, agg::trans_affine const& tr, double opacity, composite_mode_e comp_op)
{
if (marker.is_vector())
{
typedef coord_transform<CoordTransform,geometry_type> path_type;
typedef agg::renderer_base<mapnik::pixfmt_gray32> ren_base;
typedef agg::renderer_scanline_bin_solid<ren_base> renderer;
agg::scanline_bin sl;
grid_rendering_buffer buf(pixmap_.raw_data(), width_, height_, width_);
mapnik::pixfmt_gray32 pixf(buf);
ren_base renb(pixf);
renderer ren(renb);
ras_ptr->reset();
box2d<double> const& bbox = (*marker.get_vector_data())->bounding_box();
coord<double,2> c = bbox.center();
// center the svg marker on '0,0'
agg::trans_affine mtx = agg::trans_affine_translation(-c.x,-c.y);
// apply symbol transformation to get to map space
mtx *= tr;
mtx *= agg::trans_affine_scaling(scale_factor_*(1.0/step));
// render the marker at the center of the marker box
mtx.translate(pos.x, pos.y);
using namespace mapnik::svg;
vertex_stl_adapter<svg_path_storage> stl_storage((*marker.get_vector_data())->source());
svg_path_adapter svg_path(stl_storage);
svg_renderer_agg<svg_path_adapter,
agg::pod_bvector<path_attributes>,
renderer,
mapnik::pixfmt_gray32> svg_renderer(svg_path,
(*marker.get_vector_data())->attributes());
svg_renderer.render_id(*ras_ptr, sl, renb, feature.id(), mtx, opacity, bbox);
}
else
{
image_data_32 const& data = **marker.get_bitmap_data();
double width = data.width();
double height = data.height();
double cx = 0.5 * width;
double cy = 0.5 * height;
if (step == 1 && (std::fabs(1.0 - scale_factor_) < 0.001 && tr.is_identity()))
{
// TODO - support opacity
pixmap_.set_rectangle(feature.id(), data,
boost::math::iround(pos.x - cx),
boost::math::iround(pos.y - cy));
}
else
{
// TODO - remove support for step != or add support for agg scaling with opacity
double ratio = (1.0/step);
image_data_32 target(ratio * data.width(), ratio * data.height());
mapnik::scale_image_agg<image_data_32>(target,data, SCALING_NEAR,
scale_factor_, 0.0, 0.0, 1.0, ratio);
pixmap_.set_rectangle(feature.id(), target,
boost::math::iround(pos.x - cx),
boost::math::iround(pos.y - cy));
}
}
pixmap_.add_feature(feature);
}
virtual void on_draw()
{
pixfmt pf(rbuf_window());
renderer_base ren_base(pf);
ren_base.clear(agg::rgba(0.5, 0.75, 0.85));
renderer_scanline ren(ren_base);
rasterizer_scanline ras;
scanline sl;
ras.clip_box(0, 0, width(), height());
// Pattern source. Must have an interface:
// width() const
// height() const
// pixel(int x, int y) const
// Any agg::renderer_base<> or derived
// is good for the use as a source.
//-----------------------------------
pattern_src_brightness_to_alpha_rgba8 p1(rbuf_img(0));
agg::pattern_filter_bilinear_rgba8 fltr; // Filtering functor
// agg::line_image_pattern is the main container for the patterns. It creates
// a copy of the patterns extended according to the needs of the filter.
// agg::line_image_pattern can operate with arbitrary image width, but if the
// width of the pattern is power of 2, it's better to use the modified
// version agg::line_image_pattern_pow2 because it works about 15-25 percent
// faster than agg::line_image_pattern (because of using simple masking instead
// of expensive '%' operation).
typedef agg::line_image_pattern<agg::pattern_filter_bilinear_rgba8> pattern_type;
typedef agg::renderer_base<pixfmt> base_ren_type;
typedef agg::renderer_outline_image<base_ren_type, pattern_type> renderer_img_type;
typedef agg::rasterizer_outline_aa<renderer_img_type, agg::line_coord_sat> rasterizer_img_type;
typedef agg::renderer_outline_aa<base_ren_type> renderer_line_type;
typedef agg::rasterizer_outline_aa<renderer_line_type, agg::line_coord_sat> rasterizer_line_type;
//-- Create with specifying the source
//pattern_type patt(fltr, src);
//-- Create uninitialized and set the source
pattern_type patt(fltr);
patt.create(p1);
renderer_img_type ren_img(ren_base, patt);
rasterizer_img_type ras_img(ren_img);
//-- create uninitialized and set parameters
agg::line_profile_aa profile;
profile.smoother_width(10.0); //optional
profile.width(8.0); //mandatory!
renderer_line_type ren_line(ren_base, profile);
ren_line.color(agg::rgba8(0,0,127)); //mandatory!
rasterizer_line_type ras_line(ren_line);
ras_line.round_cap(true); //optional
//ras_line.line_join(agg::outline_no_join); //optional
// Calculate the dilation value so that, the line caps were
// drawn correctly.
//---------------
double w2 = 9.0;//p1.height() / 2 + 2;
// Set the clip box a bit bigger than you expect. You need it
// to draw the clipped line caps correctly. The correct result
// is achieved with raster clipping.
//------------------------
ren_img.scale_x(m_scale_x.value());
ren_img.start_x(m_start_x.value());
ren_img.clip_box (50-w2, 50-w2, width()-50+w2, height()-50+w2);
ren_line.clip_box(50-w2, 50-w2, width()-50+w2, height()-50+w2);
// First, draw polyline without raster clipping just to show the idea
//------------------------
draw_polyline(ras_line, ren_line, m_line1.polygon(), m_line1.num_points());
draw_polyline(ras_img, ren_img, m_line1.polygon(), m_line1.num_points());
// Clear the area, almost opaque, but not completely
//------------------------
ren_base.blend_bar(0, 0, (int)width(), (int)height(), agg::rgba(1,1,1), 200);
// Set the raster clip box and then, draw again.
// In reality there shouldn't be two calls above.
// It's done only for demonstration
//------------------------
ren_base.clip_box((int)50, (int)50, (int)width()-50, (int)height()-50);
// This "copy_bar" is also for demonstration only
//------------------------
ren_base.copy_bar(0, 0, (int)width(), (int)height(), agg::rgba(1,1,1));
// Finally draw polyline correctly clipped: We use double clipping,
// first is vector clipping, with extended clip box, second is raster
// clipping with normal clip box.
//------------------------
ren_img.scale_x(m_scale_x.value());
ren_img.start_x(m_start_x.value());
draw_polyline(ras_line, ren_line, m_line1.polygon(), m_line1.num_points());
draw_polyline(ras_img, ren_img, m_line1.polygon(), m_line1.num_points());
// Reset clipping and draw the controls and stuff
ren_base.reset_clipping(true);
m_line1.line_width(1/m_scale.scale());
m_line1.point_radius(5/m_scale.scale());
agg::render_ctrl(ras, sl, ren_base, m_line1);
agg::render_ctrl(ras, sl, ren_base, m_scale_x);
agg::render_ctrl(ras, sl, ren_base, m_start_x);
char buf[256];
agg::gsv_text t;
t.size(10.0);
agg::conv_stroke<agg::gsv_text> pt(t);
pt.width(1.5);
pt.line_cap(agg::round_cap);
const double* p = m_line1.polygon();
sprintf(buf, "Len=%.2f", agg::calc_distance(p[0], p[1], p[2], p[3]) * m_scale.scale());
t.start_point(10.0, 30.0);
t.text(buf);
ras.add_path(pt);
ren.color(agg::rgba(0,0,0));
agg::render_scanlines(ras, sl, ren);
}