the_application(agg::pix_format_e format, bool flip_y) :
agg::platform_support(format, flip_y),
m_polygons (5.0, 5.0, 5.0+205.0, 110.0, !flip_y),
m_operation(555.0, 5.0, 555.0+80.0, 55.0, !flip_y),
m_alpha_buf(0),
m_alpha_mask_rbuf(),
m_alpha_mask(m_alpha_mask_rbuf),
m_x(0),
m_y(0)
{
m_operation.add_item("AND");
m_operation.add_item("SUB");
m_operation.cur_item(0);
add_ctrl(m_operation);
m_operation.no_transform();
m_polygons.add_item("Two Simple Paths");
m_polygons.add_item("Closed Stroke");
m_polygons.add_item("Great Britain and Arrows");
m_polygons.add_item("Great Britain and Spiral");
m_polygons.add_item("Spiral and Glyph");
m_polygons.cur_item(3);
add_ctrl(m_polygons);
m_polygons.no_transform();
}
void perform_rendering(Scanline &sl, Ras &ras, Ren &ren, Clp &clp)
{
if(m_operation.cur_item() > 0)
{
ras.reset();
switch(m_operation.cur_item())
{
case 1: clp.operation(agg::clipper_or); break;
case 2: clp.operation(agg::clipper_and); break;
case 3: clp.operation(agg::clipper_xor); break;
case 4: clp.operation(agg::clipper_a_minus_b); break;
case 5: clp.operation(agg::clipper_b_minus_a); break;
}
agg::conv_poly_counter<Clp> counter(clp);
start_timer();
counter.rewind(0);
double t1 = elapsed_time();
ras.reset();
double x;
double y;
unsigned cmd;
start_timer();
while(!agg::is_stop(cmd = counter.vertex(&x, &y)))
{
ras.add_vertex(x, y, cmd);
}
ren.color(agg::rgba(0.5, 0.0, 0, 0.5));
agg::render_scanlines(ras, sl, ren);
double t2 = elapsed_time();
char buf[100];
sprintf_s(buf, "Contours: %d Points: %d", counter.m_contours, counter.m_points);
agg::gsv_text txt;
agg::conv_stroke<agg::gsv_text> txt_stroke(txt);
txt_stroke.width(1.5);
txt_stroke.line_cap(agg::round_cap);
txt.size(10.0);
txt.start_point(250, 5);
txt.text(buf);
ras.add_path(txt_stroke);
ren.color(agg::rgba(0.0, 0.0, 0.0));
agg::render_scanlines(ras, sl, ren);
sprintf_s(buf, "Clipper=%.3fms Render=%.3fms", t1, t2);
txt.start_point(250, 20);
txt.text(buf);
ras.add_path(txt_stroke);
ren.color(agg::rgba(0.0, 0.0, 0.0));
agg::render_scanlines(ras, sl, ren);
}
}
template<class VertexSource> void generate_alpha_mask(VertexSource& vs)
{
unsigned cx = (unsigned)width();
unsigned cy = (unsigned)height();
delete [] m_alpha_buf;
m_alpha_buf = new unsigned char[cx * cy];
m_alpha_mask_rbuf.attach(m_alpha_buf, cx, cy, cx);
typedef agg::renderer_base<agg::pixfmt_gray8> ren_base;
typedef agg::renderer_scanline_aa_solid<ren_base> renderer;
agg::pixfmt_gray8 pixf(m_alpha_mask_rbuf);
ren_base rb(pixf);
renderer ren(rb);
start_timer();
if(m_operation.cur_item() == 0)
{
rb.clear(agg::gray8(0));
ren.color(agg::gray8(255));
}
else
{
rb.clear(agg::gray8(255));
ren.color(agg::gray8(0));
}
m_ras.add_path(vs);
agg::render_scanlines(m_ras, m_sl, ren);
double t1 = elapsed_time();
char buf[100];
sprintf(buf, "Generate AlphaMask: %.3fms", t1);
draw_text(250, 20, buf);
}
the_application(agg::pix_format_e format, bool flip_y) :
agg::platform_support(format, flip_y),
m_step (115, 5, 400, 11, !flip_y),
m_radius(115, 5+15, 400, 11+15, !flip_y),
m_filters(0.0, 0.0, 110.0, 210.0, !flip_y),
m_normalize (8.0, 215.0, "Normalize Filter", !flip_y),
m_run (8.0, 245.0, "RUN Test!", !flip_y),
m_single_step(8.0, 230.0, "Single Step", !flip_y),
m_refresh (8.0, 265.0, "Refresh", !flip_y),
m_cur_angle(0.0),
m_cur_filter(1),
m_num_steps(0),
m_num_pix(0.0),
m_time1(0),
m_time2(0)
{
add_ctrl(m_radius);
add_ctrl(m_step);
add_ctrl(m_filters);
add_ctrl(m_run);
add_ctrl(m_single_step);
add_ctrl(m_normalize);
add_ctrl(m_refresh);
m_run.text_size(7.5);
m_single_step.text_size(7.5);
m_normalize.text_size(7.5);
m_refresh.text_size(7.5);
m_normalize.status(true);
m_radius.label("Filter Radius=%.3f");
m_step.label("Step=%3.2f");
m_radius.range(2.0, 8.0);
m_radius.value(4.0);
m_step.range(1.0, 10.0);
m_step.value(5.0);
m_filters.add_item("simple (NN)");
m_filters.add_item("bilinear");
m_filters.add_item("bicubic");
m_filters.add_item("spline16");
m_filters.add_item("spline36");
m_filters.add_item("hanning");
m_filters.add_item("hamming");
m_filters.add_item("hermite");
m_filters.add_item("kaiser");
m_filters.add_item("quadric");
m_filters.add_item("catrom");
m_filters.add_item("gaussian");
m_filters.add_item("bessel");
m_filters.add_item("mitchell");
m_filters.add_item("sinc");
m_filters.add_item("lanczos");
m_filters.add_item("blackman");
m_filters.cur_item(1);
m_filters.border_width(0, 0);
m_filters.background_color(agg::rgba(0.0, 0.0, 0.0, 0.1));
m_filters.text_size(6.0);
m_filters.text_thickness(0.85);
}
the_application(agg::pix_format_e format, bool flip_y) :
agg::platform_support(format, flip_y),
m_gamma_lut(2.0),
m_quad(4, 5.0),
m_trans_type(400, 5.0, 430+170.0, 100.0, !flip_y),
m_gamma(5.0, 5.0+15*0, 400-5, 10.0+15*0, !flip_y),
m_blur (5.0, 5.0+15*1, 400-5, 10.0+15*1, !flip_y),
m_old_gamma(2.0)
{
m_trans_type.text_size(7);
m_trans_type.add_item("Affine No Resample");
m_trans_type.add_item("Affine Resample");
m_trans_type.add_item("Perspective No Resample LERP");
m_trans_type.add_item("Perspective No Resample Exact");
m_trans_type.add_item("Perspective Resample LERP");
m_trans_type.add_item("Perspective Resample Exact");
m_trans_type.cur_item(4);
add_ctrl(m_trans_type);
m_gamma.range(0.5, 3.0);
m_gamma.value(2.0);
m_gamma.label("Gamma=%.3f");
add_ctrl(m_gamma);
m_blur.range(0.5, 5.0);
m_blur.value(1.0);
m_blur.label("Blur=%.3f");
add_ctrl(m_blur);
}
the_application(agg::pix_format_e format, bool flip_y) :
agg::platform_support(format, flip_y),
m_quad1(4, 5.0),
m_quad2(4, 5.0),
m_trans_type(420, 5.0, 420+130.0, 145.0, !flip_y),
m_reset (350, 5.0, "Reset", !flip_y),
m_mul1 (5.0, 5.0, 340.0, 12.0, !flip_y),
m_mul2 (5.0, 20.0, 340.0, 27.0, !flip_y)
{
m_trans_type.add_item("Union");
m_trans_type.add_item("Intersection");
m_trans_type.add_item("Linear XOR");
m_trans_type.add_item("Saddle XOR");
m_trans_type.add_item("Abs Diff XOR");
m_trans_type.add_item("A-B");
m_trans_type.add_item("B-A");
m_trans_type.cur_item(0);
add_ctrl(m_trans_type);
add_ctrl(m_reset);
add_ctrl(m_mul1);
add_ctrl(m_mul2);
m_mul1.value(1.0);
m_mul2.value(1.0);
m_mul1.label("Opacity1=%.3f");
m_mul2.label("Opacity2=%.3f");
}
the_application(agg::pix_format_e format, bool flip_y)
: agg::platform_support(format, flip_y),
m_idx(-1),
m_join(10.0, 10.0, 133.0, 80.0, !flip_y),
m_cap(10.0, 80.0 + 10.0, 133.0, 80.0 + 80.0, !flip_y),
m_width(130 + 10.0, 10.0 + 4.0, 500.0 - 10.0, 10.0 + 8.0 + 4.0,
!flip_y),
m_miter_limit(130 + 10.0, 20.0 + 10.0 + 4.0, 500.0 - 10.0,
20.0 + 10.0 + 8.0 + 4.0, !flip_y) {
m_x[0] = 57 + 100;
m_y[0] = 60;
m_x[1] = 369 + 100;
m_y[1] = 170;
m_x[2] = 143 + 100;
m_y[2] = 310;
add_ctrl(m_join);
m_join.text_size(7.5);
m_join.text_thickness(1.0);
m_join.add_item("Miter Join");
m_join.add_item("Miter Join Revert");
m_join.add_item("Round Join");
m_join.add_item("Bevel Join");
m_join.cur_item(2);
add_ctrl(m_cap);
m_cap.add_item("Butt Cap");
m_cap.add_item("Square Cap");
m_cap.add_item("Round Cap");
m_cap.cur_item(2);
add_ctrl(m_width);
m_width.range(3.0, 40.0);
m_width.value(20.0);
m_width.label("Width=%1.2f");
add_ctrl(m_miter_limit);
m_miter_limit.range(1.0, 10.0);
m_miter_limit.value(4.0);
m_miter_limit.label("Miter Limit=%1.2f");
m_join.no_transform();
m_cap.no_transform();
m_width.no_transform();
m_miter_limit.no_transform();
}
//------------------------------------------------------------------------
void draw_scene(scanline_rasterizer& ras,
solid_renderer& solid,
draft_renderer& draft)
{
ras.gamma(agg::gamma_none());
srand(100);
if(m_draw_nodes.status())
{
if(m_draft.status())
{
draw_nodes_draft();
}
else
{
draw_nodes_fine(ras);
}
}
if(m_draw_edges.status())
{
if(m_draft.status())
{
switch(m_type.cur_item())
{
case 0: draw_lines_draft(); break;
case 1: draw_curves_draft(); break;
case 2: draw_dashes_draft(); break;
}
}
else
{
switch(m_type.cur_item())
{
case 0: draw_lines_fine(ras, solid, draft); break;
case 1: draw_curves_fine(ras, solid, draft); break;
case 2: draw_dashes_fine(ras, solid, draft); break;
case 3:
case 4: draw_polygons(ras, solid, draft); break;
}
}
}
}
void on_ctrl_change()
{
if(m_single_step.status())
{
m_cur_angle += m_step.value();
copy_img_to_img(1, 0);
transform_image(m_step.value());
m_num_steps++;
force_redraw();
m_single_step.status(false);
}
if(m_run.status())
{
#ifdef AGG_ACCURATE_TIME
start_timer();
m_time1 = m_time2 = elapsed_time();
#else
m_time1 = m_time2 = clock();
#endif
m_num_pix = 0.0;
wait_mode(false);
}
if(m_refresh.status() || m_filters.cur_item() != m_cur_filter)
{
#ifdef AGG_ACCURATE_TIME
start_timer();
m_time1 = m_time2 = 0;
#else
m_time1 = m_time2 = clock();
#endif
m_num_pix = 0.0;
m_cur_angle = 0.0;
copy_img_to_img(1, 2);
transform_image(0.0);
m_refresh.status(false);
m_cur_filter = m_filters.cur_item();
m_num_steps = 0;
force_redraw();
}
}
the_application(agg::pix_format_e format, bool flip_y) :
agg::platform_support(format, flip_y),
m_polygons (5.0, 5.0, 5.0+205.0, 110.0, !flip_y),
m_fill_rule (200, 5.0, 200+105.0, 50.0, !flip_y),
m_scanline_type(300, 5.0, 300+115.0, 70.0, !flip_y),
m_operation (535.0, 5.0, 535.0+115.0, 145.0, !flip_y)
{
m_operation.add_item("None");
m_operation.add_item("OR");
m_operation.add_item("AND");
m_operation.add_item("XOR Linear");
m_operation.add_item("XOR Saddle");
m_operation.add_item("A-B");
m_operation.add_item("B-A");
m_operation.cur_item(2);
add_ctrl(m_operation);
m_operation.no_transform();
m_fill_rule.add_item("Even-Odd");
m_fill_rule.add_item("Non Zero");
m_fill_rule.cur_item(1);
add_ctrl(m_fill_rule);
m_fill_rule.no_transform();
m_scanline_type.add_item("scanline_p");
m_scanline_type.add_item("scanline_u");
m_scanline_type.add_item("scanline_bin");
m_scanline_type.cur_item(1);
add_ctrl(m_scanline_type);
m_scanline_type.no_transform();
m_polygons.add_item("Two Simple Paths");
m_polygons.add_item("Closed Stroke");
m_polygons.add_item("Great Britain and Arrows");
m_polygons.add_item("Great Britain and Spiral");
m_polygons.add_item("Spiral and Glyph");
m_polygons.cur_item(3);
add_ctrl(m_polygons);
m_polygons.no_transform();
}
void compose_path()
{
unsigned flag = 0;
if (m_close.cur_item() == 1) flag = agg::path_flags_cw;
if (m_close.cur_item() == 2) flag = agg::path_flags_ccw;
m_path.remove_all();
m_path.move_to(28.47, 6.45);
m_path.curve3(21.58, 1.12, 19.82, 0.29);
m_path.curve3(17.19, -0.93, 14.21, -0.93);
m_path.curve3(9.57, -0.93, 6.57, 2.25);
m_path.curve3(3.56, 5.42, 3.56, 10.60);
m_path.curve3(3.56, 13.87, 5.03, 16.26);
m_path.curve3(7.03, 19.58, 11.99, 22.51);
m_path.curve3(16.94, 25.44, 28.47, 29.64);
m_path.line_to(28.47, 31.40);
m_path.curve3(28.47, 38.09, 26.34, 40.58);
m_path.curve3(24.22, 43.07, 20.17, 43.07);
m_path.curve3(17.09, 43.07, 15.28, 41.41);
m_path.curve3(13.43, 39.75, 13.43, 37.60);
m_path.line_to(13.53, 34.77);
m_path.curve3(13.53, 32.52, 12.38, 31.30);
m_path.curve3(11.23, 30.08, 9.38, 30.08);
m_path.curve3(7.57, 30.08, 6.42, 31.35);
m_path.curve3(5.27, 32.62, 5.27, 34.81);
m_path.curve3(5.27, 39.01, 9.57, 42.53);
m_path.curve3(13.87, 46.04, 21.63, 46.04);
m_path.curve3(27.59, 46.04, 31.40, 44.04);
m_path.curve3(34.28, 42.53, 35.64, 39.31);
m_path.curve3(36.52, 37.21, 36.52, 30.71);
m_path.line_to(36.52, 15.53);
m_path.curve3(36.52, 9.13, 36.77, 7.69);
m_path.curve3(37.01, 6.25, 37.57, 5.76);
m_path.curve3(38.13, 5.27, 38.87, 5.27);
m_path.curve3(39.65, 5.27, 40.23, 5.62);
m_path.curve3(41.26, 6.25, 44.19, 9.18);
m_path.line_to(44.19, 6.45);
m_path.curve3(38.72, -0.88, 33.74, -0.88);
m_path.curve3(31.35, -0.88, 29.93, 0.78);
m_path.curve3(28.52, 2.44, 28.47, 6.45);
m_path.close_polygon(flag);
m_path.move_to(28.47, 9.62);
m_path.line_to(28.47, 26.66);
m_path.curve3(21.09, 23.73, 18.95, 22.51);
m_path.curve3(15.09, 20.36, 13.43, 18.02);
m_path.curve3(11.77, 15.67, 11.77, 12.89);
m_path.curve3(11.77, 9.38, 13.87, 7.06);
m_path.curve3(15.97, 4.74, 18.70, 4.74);
m_path.curve3(22.41, 4.74, 28.47, 9.62);
m_path.close_polygon(flag);
}
virtual void on_draw()
{
pixfmt pixf(rbuf_window());
renderer_base rb(pixf);
renderer_solid rs(rb);
rb.clear(agg::rgba(1.0, 1.0, 1.0));
rb.copy_from(rbuf_img(0), 0, 110, 35);
agg::rasterizer_scanline_aa<> ras;
agg::scanline_p8 sl;
char buf[64];
sprintf(buf, "NSteps=%d", m_num_steps);
agg::gsv_text t;
t.start_point(10.0, 295.0);
t.size(10.0);
t.text(buf);
agg::conv_stroke<agg::gsv_text> pt(t);
pt.width(1.5);
ras.add_path(pt);
rs.color(agg::rgba(0,0,0));
agg::render_scanlines(ras, sl, rs);
if(m_time1 != m_time2 && m_num_pix > 0.0)
{
#ifdef AGG_ACCURATE_TIME
sprintf(buf, "%3.2f Kpix/sec", m_num_pix / (m_time2 - m_time1));
#else
sprintf(buf, "%3.2f Kpix/sec", m_num_pix /
1000.0 /
(double(m_time2 - m_time1) / CLOCKS_PER_SEC));
#endif
t.start_point(10.0, 310.0);
t.text(buf);
ras.add_path(pt);
agg::render_scanlines(ras, sl, rs);
}
if(m_filters.cur_item() >= 14)
{
agg::render_ctrl(ras, sl, rs, m_radius);
}
agg::render_ctrl(ras, sl, rs, m_step);
agg::render_ctrl(ras, sl, rs, m_filters);
agg::render_ctrl(ras, sl, rs, m_run);
agg::render_ctrl(ras, sl, rs, m_normalize);
agg::render_ctrl(ras, sl, rs, m_single_step);
agg::render_ctrl(ras, sl, rs, m_refresh);
}
the_application(agg::pix_format_e format, bool flip_y) :
agg::platform_support(format, flip_y),
m_polygons (5.0, 5.0, 5.0+205.0, 110.0, !flip_y),
m_operation(555.0, 5.0, 555.0+80.0, 130.0, !flip_y)
{
m_operation.add_item("None");
m_operation.add_item("OR");
m_operation.add_item("AND");
m_operation.add_item("XOR");
m_operation.add_item("A-B");
m_operation.add_item("B-A");
m_operation.cur_item(2);
add_ctrl(m_operation);
m_polygons.add_item("Two Simple Paths");
m_polygons.add_item("Closed Stroke");
m_polygons.add_item("Great Britain and Arrows");
m_polygons.add_item("Great Britain and Spiral");
m_polygons.add_item("Spiral and Glyph");
m_polygons.cur_item(3);
add_ctrl(m_polygons);
}
the_application(agg::pix_format_e format, bool flip_y) :
agg::platform_support(format, flip_y),
m_quad(4, 5.0),
m_trans_type(460, 5.0, 420+170.0, 60.0, !flip_y),
m_test_flag(false)
{
m_trans_type.text_size(8);
m_trans_type.text_thickness(1);
m_trans_type.add_item("Affine");
m_trans_type.add_item("Bilinear");
m_trans_type.add_item("Perspective");
m_trans_type.cur_item(2);
add_ctrl(m_trans_type);
}
the_application(agg::pix_format_e format, bool flip_y) :
agg::platform_support(format, flip_y),
m_type(-1, -1, -1, -1, !flip_y),
m_width(110+80, 8.0, 110+200.0+80, 8.0 + 7.0, !flip_y),
m_benchmark(110+200+80+8, 8.0-2.0, "Benchmark", !flip_y),
m_draw_nodes(110+200+80+8, 8.0-2.0+15.0, "Draw Nodes", !flip_y),
m_draw_edges(200+200+80+8, 8.0-2.0+15.0, "Draw Edges", !flip_y),
m_draft(200+200+80+8, 8.0-2.0, "Draft Mode", !flip_y),
m_translucent(110+80, 8.0-2.0+15.0, "Translucent Mode", !flip_y),
m_graph(200, 100),
m_gradient_colors(),
m_draw(3)
{
add_ctrl(m_type);
m_type.text_size(8.0);
m_type.add_item("Solid lines");
m_type.add_item("Bezier curves");
m_type.add_item("Dashed curves");
m_type.add_item("Poygons AA");
m_type.add_item("Poygons Bin");
m_type.cur_item(0);
add_ctrl(m_width);
m_width.num_steps(20);
m_width.range(0.0, 5.0);
m_width.value(2.0);
m_width.label("Width=%1.2f");
m_benchmark.text_size(8.0);
m_draw_nodes.text_size(8.0);
m_draft.text_size(8.0);
m_draw_nodes.status(true);
m_draw_edges.status(true);
add_ctrl(m_benchmark);
add_ctrl(m_draw_nodes);
add_ctrl(m_draw_edges);
add_ctrl(m_draft);
add_ctrl(m_translucent);
agg::rgba c1(1, 1, 0, 0.25);
agg::rgba c2(0, 0, 1);
int i;
for(i = 0; i < 256; i++)
{
m_gradient_colors[i] = c1.gradient(c2, double(i) / 255.0);
}
}
void render_edge_fine(scanline_rasterizer& ras,
solid_renderer& ren_fine,
draft_renderer& ren_draft,
Source& src)
{
double x, y;
switch(m_draw)
{
case 0:
src.rewind(0);
while(!agg::is_stop(src.vertex(&x, &y)));
break;
case 1:
ras.reset();
ras.add_path(src);
break;
case 2:
ras.reset();
ras.add_path(src);
ras.sort();
break;
case 3:
{
int r = rand() & 0x7F;
int g = rand() & 0x7F;
int b = rand() & 0x7F;
int a = 255;
if(m_translucent.status()) a = 80;
ras.add_path(src);
if(m_type.cur_item() < 4)
{
ren_fine.color(agg::srgba8(r, g, b, a));
agg::render_scanlines(ras, m_sl, ren_fine);
}
else
{
ren_draft.color(agg::srgba8(r, g, b, a));
agg::render_scanlines(ras, m_sl, ren_draft);
}
}
break;
}
}
the_application(agg::pix_format_e format, bool flip_y) :
agg::platform_support(format, flip_y),
m_alpha_dst(5, 5, 400, 11, !flip_y),
m_alpha_src(5, 5+15, 400, 11+15, !flip_y),
m_comp_op(420, 5.0, 420+170.0, 395.0, !flip_y)
{
m_alpha_dst.label("Dst Alpha=%.2f");
m_alpha_dst.value(1.0);
add_ctrl(m_alpha_dst);
m_alpha_src.label("Src Alpha=%.2f");
m_alpha_src.value(1.0);
add_ctrl(m_alpha_src);
m_comp_op.text_size(6.8);
m_comp_op.add_item("clear");
m_comp_op.add_item("src");
m_comp_op.add_item("dst");
m_comp_op.add_item("src-over");
m_comp_op.add_item("dst-over");
m_comp_op.add_item("src-in");
m_comp_op.add_item("dst-in");
m_comp_op.add_item("src-out");
m_comp_op.add_item("dst-out");
m_comp_op.add_item("src-atop");
m_comp_op.add_item("dst-atop");
m_comp_op.add_item("xor");
m_comp_op.add_item("plus");
m_comp_op.add_item("minus");
m_comp_op.add_item("multiply");
m_comp_op.add_item("screen");
m_comp_op.add_item("overlay");
m_comp_op.add_item("darken");
m_comp_op.add_item("lighten");
m_comp_op.add_item("color-dodge");
m_comp_op.add_item("color-burn");
m_comp_op.add_item("hard-light");
m_comp_op.add_item("soft-light");
m_comp_op.add_item("difference");
m_comp_op.add_item("exclusion");
m_comp_op.add_item("contrast");
m_comp_op.add_item("invert");
m_comp_op.add_item("invert-rgb");
m_comp_op.cur_item(3);
add_ctrl(m_comp_op);
}
the_application(agg::pix_format_e format, bool flip_y) :
agg::platform_support(format, flip_y),
m_angle (5, 5, 150, 12, !flip_y),
m_scale (5, 5+15, 150, 12+15, !flip_y),
m_period (5+170, 5, 150+170, 12, !flip_y),
m_amplitude (5+170, 5+15, 150+170, 12+15, !flip_y),
m_distortion(480, 5, 600, 90, !flip_y),
m_center_x(0.0),
m_center_y(0.0),
m_phase(0.0)
{
add_ctrl(m_angle);
add_ctrl(m_scale);
add_ctrl(m_amplitude);
add_ctrl(m_period);
add_ctrl(m_distortion);
m_angle.label("Angle=%3.2f");
m_scale.label("Scale=%3.2f");
m_angle.range(-180.0, 180.0);
m_angle.value(20.0);
m_scale.range(0.1, 5.0);
m_scale.value(1.0);
m_amplitude.label("Amplitude=%3.2f");
m_period.label("Period=%3.2f");
m_amplitude.range(0.1, 40.0);
m_period.range(0.1, 2.0);
m_amplitude.value(10.0);
m_period.value(1.0);
m_distortion.add_item("Wave");
m_distortion.add_item("Swirl");
m_distortion.add_item("Wave-Swirl");
m_distortion.add_item("Swirl-Wave");
m_distortion.cur_item(0);
unsigned i;
const agg::int8u* p = g_gradient_colors;
for(i = 0; i < 256; i++)
{
m_gradient_colors[i] = agg::rgba8(p[0], p[1], p[2], p[3]);
p += 4;
}
}
the_application(agg::pix_format_e format, bool flip_y) :
agg::platform_support(format, flip_y),
m_close (10.0, 10.0, 130.0, 80.0, !flip_y),
m_width (130 + 10.0, 10.0 + 4.0, 130 + 300.0, 10.0 + 8.0 + 4.0, !flip_y),
m_auto_detect(130 + 10.0, 10.0 + 4.0 + 16.0, "Autodetect orientation if not defined", !flip_y)
{
add_ctrl(m_close);
m_close.add_item("Close");
m_close.add_item("Close CW");
m_close.add_item("Close CCW");
m_close.cur_item(0);
add_ctrl(m_width);
m_width.range(-100.0, 100.0);
m_width.value(0.0);
m_width.label("Width=%1.2f");
add_ctrl(m_auto_detect);
}
//------------------------------------------------------------------------
void draw_polygons(scanline_rasterizer& ras,
solid_renderer& solid,
draft_renderer& draft)
{
int i;
if(m_type.cur_item() == 4)
{
ras.gamma(agg::gamma_threshold(0.5));
}
for(i = 0; i < m_graph.get_num_edges(); i++)
{
graph::edge b = m_graph.get_edge(i);
graph::node n1 = m_graph.get_node(b.node1, width(), height());
graph::node n2 = m_graph.get_node(b.node2, width(), height());
curve c(n1.x, n1.y, n2.x, n2.y);
render_edge_fine(ras, solid, draft, c);
}
ras.gamma(agg::gamma_none());
}
the_application(agg::pix_format_e format, bool flip_y) :
agg::platform_support(format, flip_y),
m_quad(4, 5.0),
m_trans_type(420, 5.0, 420+130.0, 55.0, !flip_y)
{
parse_lion();
m_quad.xn(0) = g_x1;
m_quad.yn(0) = g_y1;
m_quad.xn(1) = g_x2;
m_quad.yn(1) = g_y1;
m_quad.xn(2) = g_x2;
m_quad.yn(2) = g_y2;
m_quad.xn(3) = g_x1;
m_quad.yn(3) = g_y2;
m_trans_type.add_item("Bilinear");
m_trans_type.add_item("Perspective");
m_trans_type.cur_item(0);
add_ctrl(m_trans_type);
}
template<class RenBase> void render_scene(RenBase& rb)
{
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;
pixfmt_type pixf(rbuf_window());
renderer_type ren(pixf);
pixf.comp_op(agg::comp_op_difference);
radial_shape(ren, m_ramp1, 50, 50, 50+320, 50+320);
pixf.comp_op(m_comp_op.cur_item());
double cx = 50;
double cy = 50;
radial_shape(ren, m_ramp2, cx+120-70, cy+120-70, cx+120+70, cy+120+70);
radial_shape(ren, m_ramp2, cx+200-70, cy+120-70, cx+200+70, cy+120+70);
radial_shape(ren, m_ramp2, cx+120-70, cy+200-70, cx+120+70, cy+200+70);
radial_shape(ren, m_ramp2, cx+200-70, cy+200-70, cx+200+70, cy+200+70);
}
//------------------------------------------------------------------------
the_application(agg::pix_format_e format, bool flip_y) :
agg::platform_support(format, flip_y),
m_polygon_angle(5, 5, 145, 11, !flip_y),
m_polygon_scale(5, 5+14, 145, 12+14, !flip_y),
m_image_angle (155, 5, 300, 12, !flip_y),
m_image_scale (155, 5+14, 300, 12+14, !flip_y),
m_rotate_polygon(5, 5+14+14, "Rotate Polygon", !flip_y),
m_rotate_image (5, 5+14+14+14, "Rotate Image", !flip_y),
m_example(-3.0, 14+14+14+14, -3.0, 14+14+14+14, !flip_y),
m_flag(0)
{
add_ctrl(m_polygon_angle);
add_ctrl(m_polygon_scale);
add_ctrl(m_image_angle);
add_ctrl(m_image_scale);
add_ctrl(m_rotate_polygon);
add_ctrl(m_rotate_image);
add_ctrl(m_example);
m_polygon_angle.label("Polygon Angle=%3.2f");
m_polygon_scale.label("Polygon Scale=%3.2f");
m_polygon_angle.range(-180.0, 180.0);
m_polygon_scale.range(0.1, 5.0);
m_polygon_scale.value(1.0);
m_image_angle.label("Image Angle=%3.2f");
m_image_scale.label("Image Scale=%3.2f");
m_image_angle.range(-180.0, 180.0);
m_image_scale.range(0.1, 5.0);
m_image_scale.value(1.0);
m_example.add_item("0");
m_example.add_item("1");
m_example.add_item("2");
m_example.add_item("3");
m_example.add_item("4");
m_example.add_item("5");
m_example.add_item("6");
m_example.cur_item(0);
}
the_application(agg::pix_format_e format, bool flip_y) :
agg::platform_support(format, flip_y),
m_idx(-1),
m_cap(10.0, 10.0, 130.0, 80.0, !flip_y),
m_width(130 + 10.0, 10.0 + 4.0, 130 + 150.0, 10.0 + 8.0 + 4.0, !flip_y),
m_smooth(130 + 150.0 + 10.0, 10.0 + 4.0, 500 - 10.0, 10.0 + 8.0 + 4.0, !flip_y),
m_close(130 + 10.0, 10.0 + 4.0 + 16.0, "Close Polygons", !flip_y),
m_even_odd(130 + 150.0 + 10.0, 10.0 + 4.0 + 16.0, "Even-Odd Fill", !flip_y)
{
m_x[0] = 57 + 100; m_y[0] = 60;
m_x[1] = 369 + 100; m_y[1] = 170;
m_x[2] = 143 + 100; m_y[2] = 310;
add_ctrl(m_cap);
m_cap.add_item("Butt Cap");
m_cap.add_item("Square Cap");
m_cap.add_item("Round Cap");
m_cap.cur_item(0);
m_cap.no_transform();
add_ctrl(m_width);
m_width.range(0.0, 10.0);
m_width.value(3.0);
m_width.label("Width=%1.2f");
m_width.no_transform();
add_ctrl(m_smooth);
m_smooth.range(0.0, 2.0);
m_smooth.value(1.0);
m_smooth.label("Smooth=%1.2f");
m_smooth.no_transform();
add_ctrl(m_close);
m_close.no_transform();
add_ctrl(m_even_odd);
m_even_odd.no_transform();
}
virtual void on_draw()
{
typedef agg::renderer_base<pixfmt> ren_base;
pixfmt pixf(rbuf_window());
ren_base renb(pixf);
renb.clear(agg::rgba(1, 1, 1));
agg::rasterizer_scanline_aa<> ras;
agg::scanline_u8 sl;
agg::line_cap_e cap = agg::butt_cap;
if(m_cap.cur_item() == 1) cap = agg::square_cap;
if(m_cap.cur_item() == 2) cap = agg::round_cap;
// Here we declare a very cheap-in-use path storage.
// It allocates space for at most 20 vertices in stack and
// never allocates memory. But be aware that adding more than
// 20 vertices is fatal!
//------------------------
typedef agg::path_base<
agg::vertex_stl_storage<
agg::pod_auto_vector<
agg::vertex_d, 20> > > path_storage_type;
path_storage_type path;
path.move_to(m_x[0], m_y[0]);
path.line_to(m_x[1], m_y[1]);
path.line_to((m_x[0]+m_x[1]+m_x[2]) / 3.0, (m_y[0]+m_y[1]+m_y[2]) / 3.0);
path.line_to(m_x[2], m_y[2]);
if(m_close.status()) path.close_polygon();
path.move_to((m_x[0] + m_x[1]) / 2, (m_y[0] + m_y[1]) / 2);
path.line_to((m_x[1] + m_x[2]) / 2, (m_y[1] + m_y[2]) / 2);
path.line_to((m_x[2] + m_x[0]) / 2, (m_y[2] + m_y[0]) / 2);
if(m_close.status()) path.close_polygon();
if(m_even_odd.status()) ras.filling_rule(agg::fill_even_odd);
// (1)
ras.add_path(path);
agg::render_scanlines_aa_solid(ras, sl, renb, agg::rgba(0.7, 0.5, 0.1, 0.5));
// (1)
// Start of (2, 3, 4)
agg::conv_smooth_poly1<path_storage_type> smooth(path);
smooth.smooth_value(m_smooth.value());
// (2)
ras.add_path(smooth);
agg::render_scanlines_aa_solid(ras, sl, renb, agg::rgba(0.1, 0.5, 0.7, 0.1));
// (2)
// (3)
agg::conv_stroke<agg::conv_smooth_poly1<path_storage_type> > smooth_outline(smooth);
ras.add_path(smooth_outline);
agg::render_scanlines_aa_solid(ras, sl, renb, agg::rgba(0.0, 0.6, 0.0, 0.8));
// (3)
// (4)
agg::conv_curve<agg::conv_smooth_poly1<path_storage_type> > curve(smooth);
agg::conv_dash<agg::conv_curve<agg::conv_smooth_poly1<path_storage_type> >, agg::vcgen_markers_term> dash(curve);
agg::conv_stroke<agg::conv_dash<agg::conv_curve<agg::conv_smooth_poly1<path_storage_type> >, agg::vcgen_markers_term> > stroke(dash);
stroke.line_cap(cap);
stroke.width(m_width.value());
double k = ::pow(m_width.value(), 0.7);
agg::arrowhead ah;
ah.head(4 * k, 4 * k, 3 * k, 2 * k);
if(!m_close.status()) ah.tail(1 * k, 1.5 * k, 3 * k, 5 * k);
agg::conv_marker<agg::vcgen_markers_term, agg::arrowhead> arrow(dash.markers(), ah);
dash.add_dash(20.0, 5.0);
dash.add_dash(5.0, 5.0);
dash.add_dash(5.0, 5.0);
dash.dash_start(10);
ras.add_path(stroke);
ras.add_path(arrow);
agg::render_scanlines_aa_solid(ras, sl, renb, agg::rgba(0.0, 0.0, 0.0));
// (4)
ras.filling_rule(agg::fill_non_zero);
agg::render_ctrl(ras, sl, renb, m_cap);
agg::render_ctrl(ras, sl, renb, m_width);
agg::render_ctrl(ras, sl, renb, m_smooth);
agg::render_ctrl(ras, sl, renb, m_close);
agg::render_ctrl(ras, sl, renb, m_even_odd);
}
virtual void on_draw()
{
pixfmt pixf(rbuf_window());
renderer_base rb(pixf);
rb.clear(agg::rgba(1.0, 1.0, 1.0));
rb.copy_from(rbuf_img(0), 0, 110, 35);
agg::rasterizer_scanline_aa<> ras;
agg::scanline_u8 sl;
agg::rendering_buffer img_rbuf(g_image, 4, 4, 4*4);
double para[] = { 200, 40, 200+300, 40, 200+300, 40+300, 200, 40+300 };
agg::trans_affine img_mtx(para, 0,0,4,4);
typedef agg::span_interpolator_linear<> interpolator_type;
interpolator_type interpolator(img_mtx);
agg::span_allocator<agg::rgba8> sa;
pixfmt img_pixf(img_rbuf);
typedef agg::image_accessor_clone<pixfmt> img_source_type;
img_source_type source(img_pixf);
ras.reset();
ras.move_to_d(para[0], para[1]);
ras.line_to_d(para[2], para[3]);
ras.line_to_d(para[4], para[5]);
ras.line_to_d(para[6], para[7]);
switch(m_filters.cur_item())
{
case 0:
{
typedef agg::span_image_filter_rgba_nn<img_source_type,
interpolator_type> span_gen_type;
span_gen_type sg(source, interpolator);
agg::render_scanlines_aa(ras, sl, rb, sa, sg);
}
break;
case 1:
case 2:
case 3:
case 4:
case 5:
case 6:
case 7:
case 8:
case 9:
case 10:
case 11:
case 12:
case 13:
case 14:
case 15:
case 16:
{
agg::image_filter_lut filter;
bool norm = m_normalize.status();
switch(m_filters.cur_item())
{
case 1:
filter.calculate(agg::image_filter_bilinear(), norm);
break;
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 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;
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_rgba<img_source_type,
interpolator_type> span_gen_type;
span_gen_type sg(source, interpolator, filter);
agg::render_scanlines_aa(ras, sl, rb, sa, sg);
agg::gamma_lut<agg::int8u, agg::int8u, 8, 8> gamma(m_gamma.value());
pixf.apply_gamma_inv(gamma);
double x_start = 5.0;
double x_end = 195.0;
double y_start = 235.0;
double y_end = initial_height() - 5.0;
double x_center = (x_start + x_end) / 2;
agg::path_storage p;
agg::conv_stroke<agg::path_storage> stroke(p);
stroke.width(0.8);
unsigned i;
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(stroke);
agg::render_scanlines_aa_solid(ras, sl, rb,
agg::rgba8(0, 0, 0, i == 8 ? 255 : 100));
}
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(stroke);
agg::render_scanlines_aa_solid(ras, sl, rb, agg::rgba8(0, 0, 0));
double radius = filter.radius();
unsigned n = unsigned(radius * 256 * 2);
double dx = (x_end - x_start) * radius / 8.0;
double dy = y_end - ys;
const agg::int16* weights = filter.weight_array();
double xs = (x_end + x_start)/2.0 - (filter.diameter() * (x_end - x_start) / 32.0);
unsigned nn = filter.diameter() * 256;
p.remove_all();
p.move_to(xs+0.5, ys + dy * weights[0] / agg::image_filter_scale);
for(i = 1; i < nn; i++)
{
p.line_to(xs + dx * i / n + 0.5,
ys + dy * weights[i] / agg::image_filter_scale);
}
ras.add_path(stroke);
agg::render_scanlines_aa_solid(ras, sl, rb, agg::rgba8(100, 0, 0));
}
break;
}
agg::render_ctrl(ras, sl, rb, m_gamma);
if(m_filters.cur_item() >= 14)
{
agg::render_ctrl(ras, sl, rb, m_radius);
}
agg::render_ctrl(ras, sl, rb, m_filters);
agg::render_ctrl(ras, sl, rb, m_normalize);
}
void render_scanline_boolean(Rasterizer& ras1, Rasterizer& ras2)
{
if(m_operation.cur_item() > 0)
{
agg::sbool_op_e op;
switch(m_operation.cur_item())
{
case 1: op = agg::sbool_or; break;
case 2: op = agg::sbool_and; break;
case 3: op = agg::sbool_xor; break;
case 4: op = agg::sbool_xor_saddle;break;
case 5: op = agg::sbool_a_minus_b; break;
case 6: op = agg::sbool_b_minus_a; break;
}
typedef agg::renderer_base<pixfmt> renderer_base;
pixfmt pixf(rbuf_window());
renderer_base rb(pixf);
double t1 = 0.0;
double t2 = 0.0;
unsigned num_spans = 0;
switch(m_scanline_type.cur_item())
{
case 0:
{
typedef agg::renderer_scanline_aa_solid<renderer_base> renderer_solid;
typedef agg::scanline_p8 scanline_type;
renderer_solid ren(rb);
scanline_type sl;
scanline_type sl1;
scanline_type sl2;
// The intermediate storage is used only to test the perfoprmance,
// the short variant can be as follows:
// ------------------------
// ren.color(agg::rgba(0.5, 0.0, 0, 0.5));
// agg::sbool_combine_shapes_aa(op, ras1, ras2, sl1, sl2, sl, ren);
agg::scanline_storage_aa8 storage;
agg::scanline_storage_aa8 storage1;
agg::scanline_storage_aa8 storage2;
agg::render_scanlines(ras1, sl, storage1);
agg::render_scanlines(ras2, sl, storage2);
start_timer();
for(int i = 0; i < 10; i++)
{
agg::sbool_combine_shapes_aa(op, storage1, storage2, sl1, sl2, sl, storage);
}
t1 = elapsed_time() / 10.0;
start_timer();
ren.color(agg::rgba(0.5, 0.0, 0, 0.5));
agg::render_scanlines(storage, sl, ren);
t2 = elapsed_time();
num_spans = count_spans(storage, sl);
}
break;
case 1:
{
typedef agg::renderer_scanline_aa_solid<renderer_base> renderer_solid;
typedef agg::scanline_u8 scanline_type;
renderer_solid ren(rb);
scanline_type sl;
scanline_type sl1;
scanline_type sl2;
agg::scanline_storage_aa8 storage;
agg::scanline_storage_aa8 storage1;
agg::scanline_storage_aa8 storage2;
agg::render_scanlines(ras1, sl, storage1);
agg::render_scanlines(ras2, sl, storage2);
start_timer();
for(int i = 0; i < 10; i++)
{
agg::sbool_combine_shapes_aa(op, storage1, storage2, sl1, sl2, sl, storage);
}
t1 = elapsed_time() / 10.0;
start_timer();
ren.color(agg::rgba(0.5, 0.0, 0, 0.5));
agg::render_scanlines(storage, sl, ren);
t2 = elapsed_time();
num_spans = count_spans(storage, sl);
}
break;
case 2:
{
typedef agg::renderer_scanline_bin_solid<renderer_base> renderer_solid;
typedef agg::scanline_bin scanline_type;
renderer_solid ren(rb);
scanline_type sl;
scanline_type sl1;
scanline_type sl2;
agg::scanline_storage_bin storage;
agg::scanline_storage_bin storage1;
agg::scanline_storage_bin storage2;
agg::render_scanlines(ras1, sl, storage1);
agg::render_scanlines(ras2, sl, storage2);
start_timer();
for(int i = 0; i < 10; i++)
{
agg::sbool_combine_shapes_bin(op, storage1, storage2, sl1, sl2, sl, storage);
}
t1 = elapsed_time() / 10.0;
start_timer();
ren.color(agg::rgba(0.5, 0.0, 0, 0.5));
agg::render_scanlines(storage, sl, ren);
t2 = elapsed_time();
num_spans = count_spans(storage, sl);
}
break;
}
char buf[100];
sprintf(buf, "Combine=%.3fms\n\nRender=%.3fms\n\nnum_spans=%d", t1, t2, num_spans);
agg::renderer_scanline_aa_solid<renderer_base> ren(rb);
agg::scanline_p8 sl;
agg::gsv_text txt;
agg::conv_stroke<agg::gsv_text> txt_stroke(txt);
txt_stroke.width(1.0);
txt_stroke.line_cap(agg::round_cap);
txt.size(8.0);
txt.start_point(420, 40);
txt.text(buf);
ras1.add_path(txt_stroke);
ren.color(agg::rgba(0.0, 0.0, 0.0));
agg::render_scanlines(ras1, sl, ren);
}
}
virtual void on_draw()
{
pixfmt pixf(rbuf_window());
renderer_base rb(pixf);
renderer_solid r(rb);
rb.clear(agg::rgba(1, 1, 1));
g_rasterizer.clip_box(0, 0, width(), height());
if(m_trans_type.cur_item() == 0)
{
agg::trans_bilinear tr(g_x1, g_y1, g_x2, g_y2, m_quad.polygon());
if(tr.is_valid())
{
//--------------------------
// Render transformed lion
//
agg::conv_transform<agg::path_storage,
agg::trans_bilinear> trans(g_path, tr);
agg::render_all_paths(g_rasterizer, g_scanline, r, trans, g_colors, g_path_idx, g_npaths);
//--------------------------
//--------------------------
// Render transformed ellipse
//
agg::ellipse ell((g_x1 + g_x2) * 0.5, (g_y1 + g_y2) * 0.5,
(g_x2 - g_x1) * 0.5, (g_y2 - g_y1) * 0.5,
200);
agg::conv_stroke<agg::ellipse> ell_stroke(ell);
ell_stroke.width(3.0);
agg::conv_transform<agg::ellipse,
agg::trans_bilinear> trans_ell(ell, tr);
agg::conv_transform<agg::conv_stroke<agg::ellipse>,
agg::trans_bilinear> trans_ell_stroke(ell_stroke, tr);
g_rasterizer.add_path(trans_ell);
r.color(agg::rgba(0.5, 0.3, 0.0, 0.3));
agg::render_scanlines(g_rasterizer, g_scanline, r);
g_rasterizer.add_path(trans_ell_stroke);
r.color(agg::rgba(0.0, 0.3, 0.2, 1.0));
agg::render_scanlines(g_rasterizer, g_scanline, r);
//--------------------------
}
}
else
{
agg::trans_perspective tr(g_x1, g_y1, g_x2, g_y2, m_quad.polygon());
if(tr.is_valid())
{
//--------------------------
// Render transformed lion
//
agg::conv_transform<agg::path_storage,
agg::trans_perspective> trans(g_path, tr);
agg::render_all_paths(g_rasterizer, g_scanline, r, trans, g_colors, g_path_idx, g_npaths);
//--------------------------
//--------------------------
// Render transformed ellipse
//
agg::ellipse ell((g_x1 + g_x2) * 0.5, (g_y1 + g_y2) * 0.5,
(g_x2 - g_x1) * 0.5, (g_y2 - g_y1) * 0.5,
200);
agg::conv_stroke<agg::ellipse> ell_stroke(ell);
ell_stroke.width(3.0);
agg::conv_transform<agg::ellipse,
agg::trans_perspective> trans_ell(ell, tr);
agg::conv_transform<agg::conv_stroke<agg::ellipse>,
agg::trans_perspective> trans_ell_stroke(ell_stroke, tr);
g_rasterizer.add_path(trans_ell);
r.color(agg::rgba(0.5, 0.3, 0.0, 0.3));
agg::render_scanlines(g_rasterizer, g_scanline, r);
g_rasterizer.add_path(trans_ell_stroke);
r.color(agg::rgba(0.0, 0.3, 0.2, 1.0));
agg::render_scanlines(g_rasterizer, g_scanline, r);
//--------------------------
// Testing the reverse transformations
//agg::trans_perspective tr2(m_quad.polygon(), g_x1, g_y1, g_x2, g_y2);
//if(tr2.is_valid())
//{
// double x, y;
// x = m_quad.xn(0); y = m_quad.yn(0); tr2.transform(&x, &y);
// g_rasterizer.move_to_d(x, y);
// x = m_quad.xn(1); y = m_quad.yn(1); tr2.transform(&x, &y);
// g_rasterizer.line_to_d(x, y);
// x = m_quad.xn(2); y = m_quad.yn(2); tr2.transform(&x, &y);
// g_rasterizer.line_to_d(x, y);
// x = m_quad.xn(3); y = m_quad.yn(3); tr2.transform(&x, &y);
// g_rasterizer.line_to_d(x, y);
// r.color(agg::rgba(0.5, 0.0, 0.0, 0.5));
// agg::render_scanlines(g_rasterizer, g_scanline, r);
//}
//else
//{
// message("Singularity...");
//}
}
}
//--------------------------
// Render the "quad" tool and controls
g_rasterizer.add_path(m_quad);
r.color(agg::rgba(0, 0.3, 0.5, 0.6));
agg::render_scanlines(g_rasterizer, g_scanline, r);
agg::render_ctrl(g_rasterizer, g_scanline, rb, m_trans_type);
//--------------------------
}
unsigned render_sbool(Rasterizer& ras1, Rasterizer& ras2)
{
pixfmt pf(rbuf_window());
agg::renderer_base<pixfmt> rb(pf);
agg::renderer_scanline_aa_solid<agg::renderer_base<pixfmt> > ren(rb);
agg::scanline_p8 sl;
ras1.filling_rule(m_fill_rule.cur_item() ? agg::fill_non_zero : agg::fill_even_odd);
ras2.filling_rule(m_fill_rule.cur_item() ? agg::fill_non_zero : agg::fill_even_odd);
switch(m_polygons.cur_item())
{
case 0:
{
//------------------------------------
// Two simple paths
//
agg::path_storage ps1;
agg::path_storage ps2;
double x = m_x - initial_width()/2 + 100;
double y = m_y - initial_height()/2 + 100;
ps1.move_to(x+140, y+145);
ps1.line_to(x+225, y+44);
ps1.line_to(x+296, y+219);
ps1.close_polygon();
ps1.line_to(x+226, y+289);
ps1.line_to(x+82, y+292);
ps1.move_to(x+220, y+222);
ps1.line_to(x+363, y+249);
ps1.line_to(x+265, y+331);
ps1.move_to(x+242, y+243);
ps1.line_to(x+325, y+261);
ps1.line_to(x+268, y+309);
ps1.move_to(x+259, y+259);
ps1.line_to(x+273, y+288);
ps1.line_to(x+298, y+266);
ps2.move_to(100+32, 100+77);
ps2.line_to(100+473, 100+263);
ps2.line_to(100+351, 100+290);
ps2.line_to(100+354, 100+374);
ras1.reset();
ras1.add_path(ps1);
ren.color(agg::rgba(0, 0, 0, 0.1));
agg::render_scanlines(ras1, sl, ren);
ras2.reset();
ras2.add_path(ps2);
ren.color(agg::rgba(0, 0.6, 0, 0.1));
agg::render_scanlines(ras2, sl, ren);
render_scanline_boolean(ras1, ras2);
}
break;
case 1:
{
//------------------------------------
// Closed stroke
//
agg::path_storage ps1;
agg::path_storage ps2;
agg::conv_stroke<agg::path_storage> stroke(ps2);
stroke.width(15.0);
double x = m_x - initial_width()/2 + 100;
double y = m_y - initial_height()/2 + 100;
ps1.move_to(x+140, y+145);
ps1.line_to(x+225, y+44);
ps1.line_to(x+296, y+219);
ps1.close_polygon();
ps1.line_to(x+226, y+289);
ps1.line_to(x+82, y+292);
ps1.move_to(x+220-50, y+222);
ps1.line_to(x+363-50, y+249);
ps1.line_to(x+265-50, y+331);
ps1.close_polygon();
ps2.move_to(100+32, 100+77);
ps2.line_to(100+473, 100+263);
ps2.line_to(100+351, 100+290);
ps2.line_to(100+354, 100+374);
ps2.close_polygon();
ras1.reset();
ras1.add_path(ps1);
ren.color(agg::rgba(0, 0, 0, 0.1));
agg::render_scanlines(ras1, sl, ren);
ras2.reset();
ras2.add_path(stroke);
ren.color(agg::rgba(0, 0.6, 0, 0.1));
agg::render_scanlines(ras2, sl, ren);
render_scanline_boolean(ras1, ras2);
}
break;
case 2:
{
//------------------------------------
// Great Britain and Arrows
//
agg::path_storage gb_poly;
agg::path_storage arrows;
make_gb_poly(gb_poly);
make_arrows(arrows);
agg::trans_affine mtx1;
agg::trans_affine mtx2;
mtx1 *= agg::trans_affine_translation(-1150, -1150);
mtx1 *= agg::trans_affine_scaling(2.0);
mtx2 = mtx1;
mtx2 *= agg::trans_affine_translation(m_x - initial_width()/2,
m_y - initial_height()/2);
agg::conv_transform<agg::path_storage> trans_gb_poly(gb_poly, mtx1);
agg::conv_transform<agg::path_storage> trans_arrows(arrows, mtx2);
ras2.add_path(trans_gb_poly);
ren.color(agg::rgba(0.5, 0.5, 0, 0.1));
agg::render_scanlines(ras2, sl, ren);
agg::conv_stroke<agg::conv_transform<agg::path_storage> > stroke_gb_poly(trans_gb_poly);
stroke_gb_poly.width(0.1);
ras1.add_path(stroke_gb_poly);
ren.color(agg::rgba(0, 0, 0));
agg::render_scanlines(ras1, sl, ren);
ras2.add_path(trans_arrows);
ren.color(agg::rgba(0.0, 0.5, 0.5, 0.1));
agg::render_scanlines(ras2, sl, ren);
ras1.reset();
ras1.add_path(trans_gb_poly);
render_scanline_boolean(ras1, ras2);
}
break;
case 3:
{
//------------------------------------
// Great Britain and a Spiral
//
spiral sp(m_x, m_y, 10, 150, 30, 0.0);
agg::conv_stroke<spiral> stroke(sp);
stroke.width(15.0);
agg::path_storage gb_poly;
make_gb_poly(gb_poly);
agg::trans_affine mtx;
mtx *= agg::trans_affine_translation(-1150, -1150);
mtx *= agg::trans_affine_scaling(2.0);
mtx *= trans_affine_resizing();
agg::conv_transform<agg::path_storage> trans_gb_poly(gb_poly, mtx);
ras1.add_path(trans_gb_poly);
ren.color(agg::rgba(0.5, 0.5, 0, 0.1));
agg::render_scanlines(ras1, sl, ren);
agg::conv_stroke<agg::conv_transform<agg::path_storage> > stroke_gb_poly(trans_gb_poly);
stroke_gb_poly.width(0.1);
ras1.reset();
ras1.add_path(stroke_gb_poly);
ren.color(agg::rgba(0, 0, 0));
agg::render_scanlines(ras1, sl, ren);
ras2.reset();
ras2.add_path(stroke);
ren.color(agg::rgba(0.0, 0.5, 0.5, 0.1));
agg::render_scanlines(ras2, sl, ren);
ras1.reset();
ras1.add_path(trans_gb_poly);
render_scanline_boolean(ras1, ras2);
}
break;
case 4:
{
//------------------------------------
// Spiral and glyph
//
spiral sp(m_x, m_y, 10, 150, 30, 0.0);
agg::conv_stroke<spiral> stroke(sp);
stroke.width(15.0);
agg::path_storage glyph;
glyph.move_to(28.47, 6.45);
glyph.curve3(21.58, 1.12, 19.82, 0.29);
glyph.curve3(17.19, -0.93, 14.21, -0.93);
glyph.curve3(9.57, -0.93, 6.57, 2.25);
glyph.curve3(3.56, 5.42, 3.56, 10.60);
glyph.curve3(3.56, 13.87, 5.03, 16.26);
glyph.curve3(7.03, 19.58, 11.99, 22.51);
glyph.curve3(16.94, 25.44, 28.47, 29.64);
glyph.line_to(28.47, 31.40);
glyph.curve3(28.47, 38.09, 26.34, 40.58);
glyph.curve3(24.22, 43.07, 20.17, 43.07);
glyph.curve3(17.09, 43.07, 15.28, 41.41);
glyph.curve3(13.43, 39.75, 13.43, 37.60);
glyph.line_to(13.53, 34.77);
glyph.curve3(13.53, 32.52, 12.38, 31.30);
glyph.curve3(11.23, 30.08, 9.38, 30.08);
glyph.curve3(7.57, 30.08, 6.42, 31.35);
glyph.curve3(5.27, 32.62, 5.27, 34.81);
glyph.curve3(5.27, 39.01, 9.57, 42.53);
glyph.curve3(13.87, 46.04, 21.63, 46.04);
glyph.curve3(27.59, 46.04, 31.40, 44.04);
glyph.curve3(34.28, 42.53, 35.64, 39.31);
glyph.curve3(36.52, 37.21, 36.52, 30.71);
glyph.line_to(36.52, 15.53);
glyph.curve3(36.52, 9.13, 36.77, 7.69);
glyph.curve3(37.01, 6.25, 37.57, 5.76);
glyph.curve3(38.13, 5.27, 38.87, 5.27);
glyph.curve3(39.65, 5.27, 40.23, 5.62);
glyph.curve3(41.26, 6.25, 44.19, 9.18);
glyph.line_to(44.19, 6.45);
glyph.curve3(38.72, -0.88, 33.74, -0.88);
glyph.curve3(31.35, -0.88, 29.93, 0.78);
glyph.curve3(28.52, 2.44, 28.47, 6.45);
glyph.close_polygon();
glyph.move_to(28.47, 9.62);
glyph.line_to(28.47, 26.66);
glyph.curve3(21.09, 23.73, 18.95, 22.51);
glyph.curve3(15.09, 20.36, 13.43, 18.02);
glyph.curve3(11.77, 15.67, 11.77, 12.89);
glyph.curve3(11.77, 9.38, 13.87, 7.06);
glyph.curve3(15.97, 4.74, 18.70, 4.74);
glyph.curve3(22.41, 4.74, 28.47, 9.62);
glyph.close_polygon();
agg::trans_affine mtx;
mtx *= agg::trans_affine_scaling(4.0);
mtx *= agg::trans_affine_translation(220, 200);
agg::conv_transform<agg::path_storage> trans(glyph, mtx);
agg::conv_curve<agg::conv_transform<agg::path_storage> > curve(trans);
ras1.reset();
ras1.add_path(stroke);
ren.color(agg::rgba(0, 0, 0, 0.1));
agg::render_scanlines(ras1, sl, ren);
ras2.reset();
ras2.add_path(curve);
ren.color(agg::rgba(0, 0.6, 0, 0.1));
agg::render_scanlines(ras2, sl, ren);
render_scanline_boolean(ras1, ras2);
}
break;
}
return 0;
}
virtual void on_draw() {
typedef agg::renderer_base<pixfmt> ren_base;
pixfmt pixf(rbuf_window());
ren_base renb(pixf);
renb.clear(agg::rgba(1, 1, 1));
agg::rasterizer_scanline_aa<> ras;
agg::scanline_p8 sl;
agg::path_storage path;
path.move_to(m_x[0], m_y[0]);
path.line_to((m_x[0] + m_x[1]) / 2,
(m_y[0] + m_y[1]) / 2); // This point is added only to check
// for numerical stability
path.line_to(m_x[1], m_y[1]);
path.line_to(m_x[2], m_y[2]);
path.line_to(m_x[2], m_y[2]); // This point is added only to check for
// numerical stability
path.move_to((m_x[0] + m_x[1]) / 2, (m_y[0] + m_y[1]) / 2);
path.line_to((m_x[1] + m_x[2]) / 2, (m_y[1] + m_y[2]) / 2);
path.line_to((m_x[2] + m_x[0]) / 2, (m_y[2] + m_y[0]) / 2);
path.close_polygon();
agg::line_cap_e cap = agg::butt_cap;
if (m_cap.cur_item() == 1) cap = agg::square_cap;
if (m_cap.cur_item() == 2) cap = agg::round_cap;
agg::line_join_e join = agg::miter_join;
if (m_join.cur_item() == 1) join = agg::miter_join_revert;
if (m_join.cur_item() == 2) join = agg::round_join;
if (m_join.cur_item() == 3) join = agg::bevel_join;
// (1)
agg::conv_stroke<agg::path_storage> stroke(path);
stroke.line_join(join);
stroke.line_cap(cap);
stroke.miter_limit(m_miter_limit.value());
stroke.width(m_width.value());
ras.add_path(stroke);
agg::render_scanlines_aa_solid(ras, sl, renb, agg::rgba(0.8, 0.7, 0.6));
// (1)
// (2)
agg::conv_stroke<agg::path_storage> poly1(path);
poly1.width(1.5);
ras.add_path(poly1);
agg::render_scanlines_aa_solid(ras, sl, renb, agg::rgba(0, 0, 0));
// (2)
// (3)
agg::conv_dash<agg::conv_stroke<agg::path_storage> > poly2_dash(stroke);
agg::conv_stroke<agg::conv_dash<agg::conv_stroke<agg::path_storage> > >
poly2(poly2_dash);
poly2.miter_limit(4.0);
poly2.width(m_width.value() / 5.0);
poly2.line_cap(cap);
poly2.line_join(join);
poly2_dash.add_dash(20.0, m_width.value() / 2.5);
ras.add_path(poly2);
agg::render_scanlines_aa_solid(ras, sl, renb, agg::rgba(0, 0, 0.3));
// (3)
// (4)
ras.add_path(path);
agg::render_scanlines_aa_solid(ras, sl, renb,
agg::rgba(0.0, 0.0, 0.0, 0.2));
// (4)
agg::render_ctrl(ras, sl, renb, m_join);
agg::render_ctrl(ras, sl, renb, m_cap);
agg::render_ctrl(ras, sl, renb, m_width);
agg::render_ctrl(ras, sl, renb, m_miter_limit);
}