mapserver/mapagg.cpp at master · fredj/mapserver · GitHub

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/******************************************************************************

* $Id$

* Project: MapServer

* Purpose: AGG rendering and other AGG related functions.

* Author: Thomas Bonfort and the MapServer team.

******************************************************************************

* Permission is hereby granted, free of charge, to any person obtaining a

* copy of this software and associated documentation files (the "Software"),

* to deal in the Software without restriction, including without limitation

* the rights to use, copy, modify, merge, publish, distribute, sublicense,

* and/or sell copies of the Software, and to permit persons to whom the

* Software is furnished to do so, subject to the following conditions:

* The above copyright notice and this permission notice shall be included in

* all copies of this Software or works derived from this Software.

* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS

* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,

* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL

* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER

* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING

* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER

* DEALINGS IN THE SOFTWARE.

*****************************************************************************/

#include "mapserver.h"

#include <assert.h>

#include "renderers/agg/include/agg_color_rgba.h"

#include "renderers/agg/include/agg_pixfmt_rgba.h"

#include "renderers/agg/include/agg_renderer_base.h"

#include "renderers/agg/include/agg_renderer_scanline.h"

#include "renderers/agg/include/agg_math_stroke.h"

#include "renderers/agg/include/agg_scanline_p.h"

#include "renderers/agg/include/agg_scanline_u.h"

#include "renderers/agg/include/agg_rasterizer_scanline_aa.h"

#include "renderers/agg/include/agg_span_pattern_rgba.h"

#include "renderers/agg/include/agg_span_allocator.h"

#include "renderers/agg/include/agg_span_interpolator_linear.h"

#include "renderers/agg/include/agg_span_image_filter_rgba.h"

#include "renderers/agg/include/agg_pattern_filters_rgba.h"

#include "renderers/agg/include/agg_span_image_filter_rgb.h"

#include "renderers/agg/include/agg_image_accessors.h"

#include "renderers/agg/include/agg_conv_stroke.h"

#include "renderers/agg/include/agg_conv_dash.h"

#include "renderers/agg/include/agg_path_storage.h"

#include "renderers/agg/include/agg_font_freetype.h"

#include "renderers/agg/include/agg_conv_contour.h"

#include "renderers/agg/include/agg_ellipse.h"

#include "renderers/agg/include/agg_gamma_functions.h"

#include "renderers/agg/include/agg_rasterizer_outline_aa.h"

#include "renderers/agg/include/agg_renderer_outline_aa.h"

#include "renderers/agg/include/agg_renderer_outline_image.h"

#include "renderers/agg/include/agg_span_pattern_rgba.h"

#include "renderers/agg/include/agg_span_image_filter_rgba.h"

#include "renderers/agg/include/agg_glyph_raster_bin.h"

#include "renderers/agg/include/agg_renderer_raster_text.h"

#include "renderers/agg/include/agg_embedded_raster_fonts.h"

#include "renderers/agg/include/agg_conv_clipper.h"

#ifdef AGG_ALIASED_ENABLED

#include "renderers/agg/include/agg_renderer_primitives.h"

#include "renderers/agg/include/agg_rasterizer_outline.h"

#endif

typedef mapserver::order_bgra band_order;

#define AGG_LINESPACE 1.33

typedef mapserver::int8u band_type;

typedef mapserver::rgba8 color_type;

typedef mapserver::pixel32_type pixel_type;

typedef mapserver::blender_rgba_pre<color_type, band_order> blender_pre;

typedef mapserver::pixfmt_alpha_blend_rgba<blender_pre, mapserver::rendering_buffer, pixel_type> pixel_format;

typedef mapserver::rendering_buffer rendering_buffer;

typedef mapserver::renderer_base<pixel_format> renderer_base;

typedef mapserver::renderer_scanline_aa_solid<renderer_base> renderer_scanline;

typedef mapserver::rasterizer_scanline_aa<> rasterizer_scanline;

typedef mapserver::font_engine_freetype_int16 font_engine_type;

typedef mapserver::font_cache_manager<font_engine_type> font_manager_type;

typedef mapserver::conv_curve<font_manager_type::path_adaptor_type> font_curve_type;

#ifdef AGG_ALIASED_ENABLED

typedef mapserver::renderer_primitives<renderer_base> renderer_primitives;

typedef mapserver::rasterizer_outline<renderer_primitives> rasterizer_outline;

#endif

static color_type AGG_NO_COLOR = color_type(0, 0, 0, 0);

const mapserver::int8u* rasterfonts[]= {

mapserver::mcs5x10_mono, /*gd tiny. gse5x7 is a bit less high than gd tiny*/

mapserver::mcs5x11_mono, /*gd small*/

mapserver::mcs6x11_mono, /*gd medium*/

mapserver::mcs7x12_mono_low, /*gd large*/

mapserver::mcs7x12_mono_high /*gd huge*/

};

fontMetrics rasterfont_sizes[] = {

{5,mapserver::mcs5x10_mono[0]},

{5,mapserver::mcs5x11_mono[0]},

{6,mapserver::mcs6x11_mono[0]},

{7,mapserver::mcs7x12_mono_low[0]},

{7,mapserver::mcs7x12_mono_high[0]}

};

* interface to a shapeObj representing lines, providing the functions

* needed by the agg rasterizer. treats shapeObjs with multiple linestrings.

class line_adaptor

{

public:

line_adaptor(shapeObj *shape):s(shape) {

m_line=s->line; /*first line*/

m_point=m_line->point; /*current vertex is first vertex of first line*/

m_lend=&(s->line[s->numlines]); /*pointer to after last line*/

m_pend=&(m_line->point[m_line->numpoints]); /*pointer to after last vertex of first line*/

}

/* a class with virtual functions should also provide a virtual destructor */

virtual ~line_adaptor() {}

void rewind(unsigned) {

m_line=s->line; /*first line*/

m_point=m_line->point; /*current vertex is first vertex of first line*/

m_pend=&(m_line->point[m_line->numpoints]); /*pointer to after last vertex of first line*/

}

virtual unsigned vertex(double* x, double* y) {

if(m_point < m_pend) {

/*here we treat the case where a real vertex is returned*/

bool first = m_point == m_line->point; /*is this the first vertex of a line*/

*x = m_point->x;

*y = m_point->y;

m_point++;

return first ? mapserver::path_cmd_move_to : mapserver::path_cmd_line_to;

}

/*if here, we're at the end of a line*/

m_line++;

*x = *y = 0.0;

if(m_line>=m_lend) /*is this the last line of the shapObj. normally,

(m_line==m_lend) should be a sufficient test, as the caller should not call

this function if a previous call returned path_cmd_stop.*/

return mapserver::path_cmd_stop; /*no more points to process*/

/*if here, there are more lines in the shapeObj, continue with next one*/

m_point=m_line->point; /*pointer to first point of next line*/

m_pend=&(m_line->point[m_line->numpoints]); /*pointer to after last point of next line*/

return vertex(x,y); /*this will return the first point of the next line*/

}

private:

shapeObj *s;

lineObj *m_line, /*current line pointer*/

*m_lend; /*points to after the last line*/

pointObj *m_point, /*current point*/

*m_pend; /*points to after last point of current line*/

};

class polygon_adaptor

{

public:

polygon_adaptor(shapeObj *shape):s(shape),m_stop(false) {

m_line=s->line; /*first lines*/

m_point=m_line->point; /*first vertex of first line*/

m_lend=&(s->line[s->numlines]); /*pointer to after last line*/

m_pend=&(m_line->point[m_line->numpoints]); /*pointer to after last vertex of first line*/

}

/* a class with virtual functions should also provide a virtual destructor */

virtual ~polygon_adaptor() {}

void rewind(unsigned) {

/*reset pointers*/

m_stop=false;

m_line=s->line;

m_point=m_line->point;

m_pend=&(m_line->point[m_line->numpoints]);

}

virtual unsigned vertex(double* x, double* y) {

if(m_point < m_pend) {

/*if here, we have a real vertex*/

bool first = m_point == m_line->point;

*x = m_point->x;

*y = m_point->y;

m_point++;

return first ? mapserver::path_cmd_move_to : mapserver::path_cmd_line_to;

}

*x = *y = 0.0;

if(!m_stop) {

/*if here, we're after the last vertex of the current line

* we return the command to close the current polygon*/

m_line++;

if(m_line>=m_lend) {

/*if here, we've finished all the vertexes of the shape.

* we still return the command to close the current polygon,

* but set m_stop so the subsequent call to vertex() will return

* the stop command*/

m_stop=true;

return mapserver::path_cmd_end_poly;

}

/*if here, there's another line in the shape, so we set the pointers accordingly

* and return the command to close the current polygon*/

m_point=m_line->point; /*first vertex of next line*/

m_pend=&(m_line->point[m_line->numpoints]); /*pointer to after last vertex of next line*/

return mapserver::path_cmd_end_poly;

}

/*if here, a previous call to vertex informed us that we'd consumed all the vertexes

* of the shape. return the command to stop processing this shape*/

return mapserver::path_cmd_stop;

}

private:

shapeObj *s;

double ox,oy;

lineObj *m_line, /*pointer to current line*/

*m_lend; /*pointer to after last line of the shape*/

pointObj *m_point, /*pointer to current vertex*/

*m_pend; /*pointer to after last vertex of current line*/

bool m_stop; /*should next call return stop command*/

};

#define aggColor(c) mapserver::rgba8_pre(c->red, c->green, c->blue, c->alpha)

class aggRendererCache

{

public:

font_engine_type m_feng;

font_manager_type m_fman;

aggRendererCache(): m_fman(m_feng) {}

};

class AGG2Renderer

{

public:

AGG2Renderer()

#ifdef AGG_ALIASED_ENABLED

m_renderer_primitives(m_renderer_base),

m_rasterizer_primitives(m_renderer_primitives)

#endif

{

stroke = NULL;

dash = NULL;

stroke_dash = NULL;

}

~AGG2Renderer() {

if(stroke) {

delete stroke;

}

if(dash) {

delete dash;

}

if(stroke_dash) {

delete stroke_dash;

}

band_type* buffer;

rendering_buffer m_rendering_buffer;

pixel_format m_pixel_format;

renderer_base m_renderer_base;

renderer_scanline m_renderer_scanline;

#ifdef AGG_ALIASED_ENABLED

renderer_primitives m_renderer_primitives;

rasterizer_outline m_rasterizer_primitives;

#endif

rasterizer_scanline m_rasterizer_aa;

rasterizer_scanline m_rasterizer_aa_gamma;

mapserver::scanline_p8 sl_poly; /*packed scanlines, works faster when the area is larger

than the perimeter, in number of pixels*/

mapserver::scanline_u8 sl_line; /*unpacked scanlines, works faster if the area is roughly

equal to the perimeter, in number of pixels*/

bool use_alpha;

mapserver::conv_stroke<line_adaptor> *stroke;

mapserver::conv_dash<line_adaptor> *dash;

mapserver::conv_stroke<mapserver::conv_dash<line_adaptor> > *stroke_dash;

};

#define AGG_RENDERER(image) ((AGG2Renderer*) (image)->img.plugin)

template<class VertexSource>

static void applyCJC(VertexSource &stroke, int caps, int joins)

{

switch (joins) {

case MS_CJC_ROUND:

stroke.line_join(mapserver::round_join);

break;

case MS_CJC_MITER:

stroke.line_join(mapserver::miter_join);

break;

case MS_CJC_BEVEL:

case MS_CJC_NONE:

stroke.line_join(mapserver::bevel_join);

break;

}

switch (caps) {

case MS_CJC_BUTT:

case MS_CJC_NONE:

stroke.line_cap(mapserver::butt_cap);

break;

case MS_CJC_ROUND:

stroke.line_cap(mapserver::round_cap);

break;

case MS_CJC_SQUARE:

stroke.line_cap(mapserver::square_cap);

break;

}

inline int aggLoadFont(aggRendererCache *cache, char *font, double size)

{

if(!cache->m_feng.name() || strcmp(cache->m_feng.name(),font)) {

if (!cache->m_feng.load_font(font, 0, mapserver::glyph_ren_outline)) {

msSetError(MS_TTFERR, "AGG error loading font (%s)", "aggLoadFont()", font);

return MS_FAILURE;

}

if(!cache->m_feng.hinting())

cache->m_feng.hinting(true);

if(cache->m_feng.resolution() != 96)

cache->m_feng.resolution(96);

if(!cache->m_feng.flip_y())

cache->m_feng.flip_y(true);

cache->m_feng.height(size);

} else {

if(cache->m_feng.height()!=size)

cache->m_feng.height(size);

}

return MS_SUCCESS;

}

int agg2RenderLine(imageObj *img, shapeObj *p, strokeStyleObj *style)

{

AGG2Renderer *r = AGG_RENDERER(img);

line_adaptor lines = line_adaptor(p);

#ifdef AGG_ALIASED_ENABLED

r->m_rasterizer_primitives.reset();

r->m_renderer_primitives.line_color(aggColor(style->color));

r->m_rasterizer_primitives.add_path(lines);

return MS_SUCCESS;

#endif

r->m_rasterizer_aa.reset();

r->m_rasterizer_aa.filling_rule(mapserver::fill_non_zero);

r->m_renderer_scanline.color(aggColor(style->color));

if (style->patternlength <= 0) {

if(!r->stroke) {

r->stroke = new mapserver::conv_stroke<line_adaptor>(lines);

} else {

r->stroke->attach(lines);

}

r->stroke->width(style->width);

if(style->width>1) {

applyCJC(*r->stroke, style->linecap, style->linejoin);

} else {

r->stroke->inner_join(mapserver::inner_bevel);

r->stroke->line_join(mapserver::bevel_join);

}

r->m_rasterizer_aa.add_path(*r->stroke);

} else {

if(!r->dash) {

r->dash = new mapserver::conv_dash<line_adaptor>(lines);

} else {

r->dash->remove_all_dashes();

r->dash->dash_start(0.0);

r->dash->attach(lines);

}

if(!r->stroke_dash) {

r->stroke_dash = new mapserver::conv_stroke<mapserver::conv_dash<line_adaptor> > (*r->dash);

} else {

r->stroke_dash->attach(*r->dash);

}

int patt_length = 0;

for (int i = 0; i < style->patternlength; i += 2) {

if (i < style->patternlength - 1) {

r->dash->add_dash(MS_MAX(1,MS_NINT(style->pattern[i])),

MS_MAX(1,MS_NINT(style->pattern[i + 1])));

if(style->patternoffset) {

patt_length += MS_MAX(1,MS_NINT(style->pattern[i])) +

MS_MAX(1,MS_NINT(style->pattern[i + 1]));

}

if(style->patternoffset > 0) {

r->dash->dash_start(patt_length - style->patternoffset);

}

r->stroke_dash->width(style->width);

if(style->width>1) {

applyCJC(*r->stroke_dash, style->linecap, style->linejoin);

} else {

r->stroke_dash->inner_join(mapserver::inner_bevel);

r->stroke_dash->line_join(mapserver::bevel_join);

}

r->m_rasterizer_aa.add_path(*r->stroke_dash);

}

mapserver::render_scanlines(r->m_rasterizer_aa, r->sl_line, r->m_renderer_scanline);

return MS_SUCCESS;

}

int agg2RenderLineTiled(imageObj *img, shapeObj *p, imageObj * tile)

{

mapserver::pattern_filter_bilinear_rgba8 fltr;

typedef mapserver::line_image_pattern<mapserver::pattern_filter_bilinear_rgba8> pattern_type;

typedef mapserver::renderer_outline_image<renderer_base, pattern_type> renderer_img_type;

typedef mapserver::rasterizer_outline_aa<renderer_img_type, mapserver::line_coord_sat> rasterizer_img_type;

pattern_type patt(fltr);

AGG2Renderer *r = AGG_RENDERER(img);

AGG2Renderer *tileRenderer = AGG_RENDERER(tile);

line_adaptor lines(p);

patt.create(tileRenderer->m_pixel_format);

renderer_img_type ren_img(r->m_renderer_base, patt);

rasterizer_img_type ras_img(ren_img);

ras_img.add_path(lines);

return MS_SUCCESS;

}

int agg2RenderPolygon(imageObj *img, shapeObj *p, colorObj * color)

{

AGG2Renderer *r = AGG_RENDERER(img);

polygon_adaptor polygons(p);

r->m_rasterizer_aa_gamma.reset();

r->m_rasterizer_aa_gamma.filling_rule(mapserver::fill_even_odd);

r->m_rasterizer_aa_gamma.add_path(polygons);

r->m_renderer_scanline.color(aggColor(color));

mapserver::render_scanlines(r->m_rasterizer_aa_gamma, r->sl_poly, r->m_renderer_scanline);

return MS_SUCCESS;

}

int agg2RenderPolygonTiled(imageObj *img, shapeObj *p, imageObj * tile)

{

assert(img->format->renderer == tile->format->renderer);

AGG2Renderer *r = AGG_RENDERER(img);

AGG2Renderer *tileRenderer = AGG_RENDERER(tile);

polygon_adaptor polygons(p);

typedef mapserver::wrap_mode_repeat wrap_type;

typedef mapserver::image_accessor_wrap<pixel_format,wrap_type,wrap_type> img_source_type;

typedef mapserver::span_pattern_rgba<img_source_type> span_gen_type;

mapserver::span_allocator<mapserver::rgba8> sa;

r->m_rasterizer_aa.reset();

r->m_rasterizer_aa.filling_rule(mapserver::fill_even_odd);

img_source_type img_src(tileRenderer->m_pixel_format);

span_gen_type sg(img_src, 0, 0);

r->m_rasterizer_aa.add_path(polygons);

mapserver::render_scanlines_aa(r->m_rasterizer_aa, r->sl_poly, r->m_renderer_base, sa , sg);

return MS_SUCCESS;

}

int agg2RenderGlyphs(imageObj *img, double x, double y, labelStyleObj *style, char *text)

{

AGG2Renderer *r = AGG_RENDERER(img);

aggRendererCache *cache = (aggRendererCache*)MS_RENDERER_CACHE(MS_IMAGE_RENDERER(img));

if(aggLoadFont(cache,style->fonts[0],style->size) == MS_FAILURE)

return MS_FAILURE;

r->m_rasterizer_aa.filling_rule(mapserver::fill_non_zero);

int curfontidx = 0;

const mapserver::glyph_cache* glyph;

int unicode;

font_curve_type m_curves(cache->m_fman.path_adaptor());

mapserver::trans_affine mtx;

mtx *= mapserver::trans_affine_translation(-x, -y);

/*agg angles are antitrigonometric*/

mtx *= mapserver::trans_affine_rotation(-style->rotation);

mtx *= mapserver::trans_affine_translation(x, y);

double fx = x, fy = y;

const char *utfptr = text;

mapserver::path_storage glyphs;

//first render all the glyphs to a path

while (*utfptr) {

if (*utfptr == '\r') {

fx = x;

utfptr++;

continue;

}

if (*utfptr == '\n') {

fx = x;

fy += ceil(style->size * AGG_LINESPACE);

utfptr++;

continue;

}

utfptr += msUTF8ToUniChar(utfptr, &unicode);

if(curfontidx != 0) {

if(aggLoadFont(cache,style->fonts[0],style->size) == MS_FAILURE)

return MS_FAILURE;

curfontidx = 0;

}

glyph = cache->m_fman.glyph(unicode);

if(!glyph || glyph->glyph_index == 0) {

int i;

for(i=1; i<style->numfonts; i++) {

if(aggLoadFont(cache,style->fonts[i],style->size) == MS_FAILURE)

return MS_FAILURE;

curfontidx = i;

glyph = cache->m_fman.glyph(unicode);

if(glyph && glyph->glyph_index != 0) {

break;

}

if (glyph) {

//cache->m_fman.add_kerning(&fx, &fy);

cache->m_fman.init_embedded_adaptors(glyph, fx, fy);

mapserver::conv_transform<font_curve_type, mapserver::trans_affine> trans_c(m_curves, mtx);

glyphs.concat_path(trans_c);

fx += glyph->advance_x;

fy += glyph->advance_y;

}

if (style->outlinewidth) {

r->m_rasterizer_aa.reset();

r->m_rasterizer_aa.filling_rule(mapserver::fill_non_zero);

mapserver::conv_contour<mapserver::path_storage> cc(glyphs);

cc.width(style->outlinewidth + 1);

r->m_rasterizer_aa.add_path(cc);

r->m_renderer_scanline.color(aggColor(style->outlinecolor));

mapserver::render_scanlines(r->m_rasterizer_aa, r->sl_line, r->m_renderer_scanline);

}

if (style->color) {

r->m_rasterizer_aa.reset();

r->m_rasterizer_aa.filling_rule(mapserver::fill_non_zero);

r->m_rasterizer_aa.add_path(glyphs);

r->m_renderer_scanline.color(aggColor(style->color));

mapserver::render_scanlines(r->m_rasterizer_aa, r->sl_line, r->m_renderer_scanline);

}

return MS_SUCCESS;

}

int agg2RenderBitmapGlyphs(imageObj *img, double x, double y, labelStyleObj *style, char *text)

{

typedef mapserver::glyph_raster_bin<color_type> glyph_gen;

int size = MS_NINT(style->size);

if(size<0 || size>4) {

msSetError(MS_RENDERERERR,"invalid bitmap font size", "agg2RenderBitmapGlyphs()");

return MS_FAILURE;

}

AGG2Renderer *r = AGG_RENDERER(img);

glyph_gen glyph(0);

mapserver::renderer_raster_htext_solid<renderer_base, glyph_gen> rt(r->m_renderer_base, glyph);

glyph.font(rasterfonts[size]);

int numlines=0;

char **lines;

/*masking out the out-of-range character codes*/

int len;

int cc_start = rasterfonts[size][2];

int cc_end = cc_start + rasterfonts[size][3];

if(msCountChars(text,'\n')) {

if((lines = msStringSplit((const char*)text, '\n', &(numlines))) == NULL)

return(-1);

} else {

lines = &text;

numlines = 1;

}

y -= glyph.base_line();

for(int n=0; n<numlines; n++) {

len = strlen(lines[n]);

for (int i = 0; i < len; i++)

if (lines[n][i] < cc_start || lines[n][i] > cc_end)

lines[n][i] = '.';

if(style->outlinewidth > 0) {

rt.color(aggColor(style->outlinecolor));

for(int i=-1; i<=1; i++) {

for(int j=-1; j<=1; j++) {

if(i||j) {

rt.render_text(x+i, y+j, lines[n], true);

}

assert(style->color);

rt.color(aggColor(style->color));

rt.render_text(x, y, lines[n], true);

y += glyph.height();

}

if(*lines != text)

msFreeCharArray(lines, numlines);

return MS_SUCCESS;

}

int agg2RenderGlyphsLine(imageObj *img, labelPathObj *labelpath, labelStyleObj *style, char *text)

{

AGG2Renderer *r = AGG_RENDERER(img);

aggRendererCache *cache = (aggRendererCache*)MS_RENDERER_CACHE(MS_IMAGE_RENDERER(img));

if(aggLoadFont(cache,style->fonts[0],style->size) == MS_FAILURE)

return MS_FAILURE;

r->m_rasterizer_aa.filling_rule(mapserver::fill_non_zero);

const mapserver::glyph_cache* glyph;

int unicode;

int curfontidx = 0;

font_curve_type m_curves(cache->m_fman.path_adaptor());

mapserver::path_storage glyphs;

for (int i = 0; i < labelpath->path.numpoints; i++) {

assert(text);

mapserver::trans_affine mtx;

mtx *= mapserver::trans_affine_translation(-labelpath->path.point[i].x,-labelpath->path.point[i].y);

mtx *= mapserver::trans_affine_rotation(-labelpath->angles[i]);

mtx *= mapserver::trans_affine_translation(labelpath->path.point[i].x,labelpath->path.point[i].y);

text += msUTF8ToUniChar(text, &unicode);

if(curfontidx != 0) {

if(aggLoadFont(cache,style->fonts[0],style->size) == MS_FAILURE)

return MS_FAILURE;

curfontidx = 0;

}

glyph = cache->m_fman.glyph(unicode);

if(!glyph || glyph->glyph_index == 0) {

int i;

for(i=1; i<style->numfonts; i++) {

if(aggLoadFont(cache,style->fonts[i],style->size) == MS_FAILURE)

return MS_FAILURE;

curfontidx = i;

glyph = cache->m_fman.glyph(unicode);

if(glyph && glyph->glyph_index != 0) {

break;

}

if (glyph) {

cache->m_fman.init_embedded_adaptors(glyph, labelpath->path.point[i].x,labelpath->path.point[i].y);

mapserver::conv_transform<font_curve_type, mapserver::trans_affine> trans_c(m_curves, mtx);

glyphs.concat_path(trans_c);

}

if (style->outlinewidth) {

r->m_rasterizer_aa.reset();

r->m_rasterizer_aa.filling_rule(mapserver::fill_non_zero);

mapserver::conv_contour<mapserver::path_storage> cc(glyphs);

cc.width(style->outlinewidth + 1);

r->m_rasterizer_aa.add_path(cc);

r->m_renderer_scanline.color(aggColor(style->outlinecolor));

mapserver::render_scanlines(r->m_rasterizer_aa, r->sl_line, r->m_renderer_scanline);

}

if (style->color) {

r->m_rasterizer_aa.reset();

r->m_rasterizer_aa.filling_rule(mapserver::fill_non_zero);

r->m_rasterizer_aa.add_path(glyphs);

r->m_renderer_scanline.color(aggColor(style->color));

mapserver::render_scanlines(r->m_rasterizer_aa, r->sl_line, r->m_renderer_scanline);

}

return MS_SUCCESS;

}

static mapserver::path_storage imageVectorSymbolAGG(symbolObj *symbol)

{

mapserver::path_storage path;

bool is_new=true;

for(int i=0; i < symbol->numpoints; i++) {

if((symbol->points[i].x == -99) && (symbol->points[i].y == -99)) { // (PENUP)

is_new=true;

} else {

if(is_new) {

path.move_to(symbol->points[i].x,symbol->points[i].y);

is_new=false;

} else {

path.line_to(symbol->points[i].x,symbol->points[i].y);

}

return path;

}

int agg2RenderVectorSymbol(imageObj *img, double x, double y,

symbolObj *symbol, symbolStyleObj * style)

{

AGG2Renderer *r = AGG_RENDERER(img);

double ox = symbol->sizex * 0.5;

double oy = symbol->sizey * 0.5;

mapserver::path_storage path = imageVectorSymbolAGG(symbol);

mapserver::trans_affine mtx;

mtx *= mapserver::trans_affine_translation(-ox,-oy);

mtx *= mapserver::trans_affine_scaling(style->scale);

mtx *= mapserver::trans_affine_rotation(-style->rotation);

mtx *= mapserver::trans_affine_translation(x, y);

path.transform(mtx);

if (style->color) {

r->m_rasterizer_aa.reset();

r->m_rasterizer_aa.filling_rule(mapserver::fill_even_odd);

r->m_rasterizer_aa.add_path(path);

r->m_renderer_scanline.color(aggColor(style->color));

mapserver::render_scanlines(r->m_rasterizer_aa, r->sl_poly, r->m_renderer_scanline);

}

if(style->outlinecolor) {

r->m_rasterizer_aa.reset();

r->m_rasterizer_aa.filling_rule(mapserver::fill_non_zero);

r->m_renderer_scanline.color(aggColor(style->outlinecolor));

mapserver::conv_stroke<mapserver::path_storage> stroke(path);

stroke.width(style->outlinewidth);

r->m_rasterizer_aa.add_path(stroke);

mapserver::render_scanlines(r->m_rasterizer_aa, r->sl_poly, r->m_renderer_scanline);

}

return MS_SUCCESS;

}

int agg2RenderPixmapSymbol(imageObj *img, double x, double y, symbolObj *symbol, symbolStyleObj * style)

{

AGG2Renderer *r = AGG_RENDERER(img);

rasterBufferObj *pixmap = symbol->pixmap_buffer;

assert(pixmap->type == MS_BUFFER_BYTE_RGBA);

rendering_buffer b(pixmap->data.rgba.pixels,pixmap->width,pixmap->height,pixmap->data.rgba.row_step);

pixel_format pf(b);

r->m_rasterizer_aa.reset();

r->m_rasterizer_aa.filling_rule(mapserver::fill_non_zero);

if ( (style->rotation != 0 && style->rotation != MS_PI*2.)|| style->scale != 1) {

mapserver::trans_affine image_mtx;

image_mtx *= mapserver::trans_affine_translation(-(pf.width()/2.),-(pf.height()/2.));

/*agg angles are antitrigonometric*/

image_mtx *= mapserver::trans_affine_rotation(-style->rotation);

image_mtx *= mapserver::trans_affine_scaling(style->scale);

image_mtx *= mapserver::trans_affine_translation(x,y);

image_mtx.invert();

typedef mapserver::span_interpolator_linear<> interpolator_type;

interpolator_type interpolator(image_mtx);

mapserver::span_allocator<color_type> sa;

// "hardcoded" bilinear filter

//------------------------------------------

typedef mapserver::span_image_filter_rgba_bilinear_clip<pixel_format, interpolator_type> span_gen_type;

span_gen_type sg(pf, mapserver::rgba(0,0,0,0), interpolator);

mapserver::path_storage pixmap_bbox;

int ims_2 = MS_NINT(MS_MAX(pixmap->width,pixmap->height)*style->scale*1.415)/2+1;

pixmap_bbox.move_to(x-ims_2,y-ims_2);

pixmap_bbox.line_to(x+ims_2,y-ims_2);

pixmap_bbox.line_to(x+ims_2,y+ims_2);

pixmap_bbox.line_to(x-ims_2,y+ims_2);

r->m_rasterizer_aa.add_path(pixmap_bbox);

mapserver::render_scanlines_aa(r->m_rasterizer_aa, r->sl_poly, r->m_renderer_base, sa, sg);

} else {

//just copy the image at the correct location (we place the pixmap on

//the nearest integer pixel to avoid blurring)

r->m_renderer_base.blend_from(pf,0,MS_NINT(x-pixmap->width/2.),MS_NINT(y-pixmap->height/2.));

}

return MS_SUCCESS;

}

int agg2RenderEllipseSymbol(imageObj *image, double x, double y,

symbolObj *symbol, symbolStyleObj * style)

{

AGG2Renderer *r = AGG_RENDERER(image);

mapserver::path_storage path;

mapserver::ellipse ellipse(x,y,symbol->sizex*style->scale/2,symbol->sizey*style->scale/2);

path.concat_path(ellipse);

if( style->rotation != 0) {

mapserver::trans_affine mtx;

mtx *= mapserver::trans_affine_translation(-x,-y);

/*agg angles are antitrigonometric*/

mtx *= mapserver::trans_affine_rotation(-style->rotation);

mtx *= mapserver::trans_affine_translation(x,y);

path.transform(mtx);

}

if(style->color) {

r->m_rasterizer_aa.reset();

r->m_rasterizer_aa.filling_rule(mapserver::fill_even_odd);

r->m_rasterizer_aa.add_path(path);

r->m_renderer_scanline.color(aggColor(style->color));

mapserver::render_scanlines(r->m_rasterizer_aa, r->sl_line, r->m_renderer_scanline);

}

if(style->outlinewidth) {

r->m_rasterizer_aa.reset();

r->m_rasterizer_aa.filling_rule(mapserver::fill_non_zero);

mapserver::conv_stroke<mapserver::path_storage> stroke(path);

stroke.width(style->outlinewidth);

r->m_rasterizer_aa.add_path(stroke);

r->m_renderer_scanline.color(aggColor(style->outlinecolor));

mapserver::render_scanlines(r->m_rasterizer_aa, r->sl_poly, r->m_renderer_scanline);

}

return MS_SUCCESS;

}

int agg2RenderTruetypeSymbol(imageObj *img, double x, double y,

symbolObj *symbol, symbolStyleObj * style)

{

AGG2Renderer *r = AGG_RENDERER(img);

aggRendererCache *cache = (aggRendererCache*)MS_RENDERER_CACHE(MS_IMAGE_RENDERER(img));

if(aggLoadFont(cache,symbol->full_font_path,style->scale) == MS_FAILURE)

return MS_FAILURE;

int unicode;

font_curve_type m_curves(cache->m_fman.path_adaptor());

msUTF8ToUniChar(symbol->character, &unicode);

const mapserver::glyph_cache* glyph = cache->m_fman.glyph(unicode);

double ox = (glyph->bounds.x1 + glyph->bounds.x2) / 2.;

double oy = (glyph->bounds.y1 + glyph->bounds.y2) / 2.;

mapserver::trans_affine mtx = mapserver::trans_affine_translation(-ox, -oy);

if(style->rotation)

mtx *= mapserver::trans_affine_rotation(-style->rotation);

mtx *= mapserver::trans_affine_translation(x, y);

mapserver::path_storage glyphs;

cache->m_fman.init_embedded_adaptors(glyph, 0,0);

mapserver::conv_transform<font_curve_type, mapserver::trans_affine> trans_c(m_curves, mtx);

glyphs.concat_path(trans_c);

if (style->outlinecolor) {

r->m_rasterizer_aa.reset();

r->m_rasterizer_aa.filling_rule(mapserver::fill_non_zero);

mapserver::conv_contour<mapserver::path_storage> cc(glyphs);

cc.auto_detect_orientation(true);

cc.width(style->outlinewidth + 1);

r->m_rasterizer_aa.add_path(cc);

r->m_renderer_scanline.color(aggColor(style->outlinecolor));

mapserver::render_scanlines(r->m_rasterizer_aa, r->sl_line, r->m_renderer_scanline);

}

if (style->color) {

r->m_rasterizer_aa.reset();

r->m_rasterizer_aa.filling_rule(mapserver::fill_non_zero);

r->m_rasterizer_aa.add_path(glyphs);

r->m_renderer_scanline.color(aggColor(style->color));

mapserver::render_scanlines(r->m_rasterizer_aa, r->sl_line, r->m_renderer_scanline);

}

return MS_SUCCESS;

}

int agg2RenderTile(imageObj *img, imageObj *tile, double x, double y)

{

AGG2Renderer *imgRenderer = agg2GetRenderer(img);

AGG2Renderer *tileRenderer = agg2GetRenderer(tile);

return MS_FAILURE;

}

int aggInitializeRasterBuffer(rasterBufferObj *rb, int width, int height, int mode)

{

rb->type = MS_BUFFER_BYTE_RGBA;

rb->data.rgba.pixel_step = 4;

rb->data.rgba.row_step = rb->data.rgba.pixel_step * width;

rb->width = width;

rb->height = height;

int nBytes = rb->data.rgba.row_step * height;

rb->data.rgba.pixels = (band_type*)msSmallCalloc(nBytes,sizeof(band_type));

rb->data.rgba.r = &(rb->data.rgba.pixels[band_order::R]);

rb->data.rgba.g = &(rb->data.rgba.pixels[band_order::G]);

rb->data.rgba.b = &(rb->data.rgba.pixels[band_order::B]);

if(mode == MS_IMAGEMODE_RGBA) {

rb->data.rgba.a = &(rb->data.rgba.pixels[band_order::A]);

}

return MS_SUCCESS;

}

int aggGetRasterBufferHandle(imageObj *img, rasterBufferObj * rb)

{

AGG2Renderer *r = AGG_RENDERER(img);

rb->type =MS_BUFFER_BYTE_RGBA;

rb->data.rgba.pixels = r->buffer;

rb->data.rgba.row_step = r->m_rendering_buffer.stride();

rb->data.rgba.pixel_step = 4;

rb->width = r->m_rendering_buffer.width();

rb->height = r->m_rendering_buffer.height();

rb->data.rgba.r = &(r->buffer[band_order::R]);

rb->data.rgba.g = &(r->buffer[band_order::G]);

rb->data.rgba.b = &(r->buffer[band_order::B]);

if(r->use_alpha)

rb->data.rgba.a = &(r->buffer[band_order::A]);

else

rb->data.rgba.a = NULL;

return MS_SUCCESS;

}

int aggGetRasterBufferCopy(imageObj *img, rasterBufferObj *rb)

{

AGG2Renderer *r = AGG_RENDERER(img);

aggInitializeRasterBuffer(rb, img->width, img->height, MS_IMAGEMODE_RGBA);

int nBytes = r->m_rendering_buffer.stride()*r->m_rendering_buffer.height();

memcpy(rb->data.rgba.pixels,r->buffer, nBytes);

return MS_SUCCESS;

}

int agg2MergeRasterBuffer(imageObj *dest, rasterBufferObj *overlay, double opacity, int srcX, int srcY,

int dstX, int dstY, int width, int height)

{

assert(overlay->type == MS_BUFFER_BYTE_RGBA);

rendering_buffer b(overlay->data.rgba.pixels, overlay->width, overlay->height, overlay->data.rgba.row_step);

pixel_format pf(b);

AGG2Renderer *r = AGG_RENDERER(dest);

mapserver::rect_base<int> src_rect(srcX,srcY,srcX+width,srcY+height);

r->m_renderer_base.blend_from(pf,&src_rect, dstX-srcX, dstY-srcY, unsigned(opacity * 255));

return MS_SUCCESS;

}

/* image i/o */

imageObj *agg2CreateImage(int width, int height, outputFormatObj *format, colorObj * bg)

{

imageObj *image = NULL;

if (format->imagemode != MS_IMAGEMODE_RGB && format->imagemode != MS_IMAGEMODE_RGBA) {

msSetError(MS_MISCERR,

"AGG2 driver only supports RGB or RGBA pixel models.", "agg2CreateImage()");

return image;

}

image = (imageObj *) calloc(1, sizeof (imageObj));

MS_CHECK_ALLOC(image, sizeof (imageObj), NULL);

AGG2Renderer *r = new AGG2Renderer();

r->buffer = (band_type*)malloc(width * height * 4 * sizeof(band_type));

if (r->buffer == NULL) {

msSetError(MS_MEMERR, "%s: %d: Out of memory allocating %u bytes.\n", "agg2CreateImage()",

__FILE__, __LINE__, (unsigned int)(width * height * 4 * sizeof(band_type)));

free(image);

return NULL;

}

r->m_rendering_buffer.attach(r->buffer, width, height, width * 4);

r->m_pixel_format.attach(r->m_rendering_buffer);

r->m_renderer_base.attach(r->m_pixel_format);

r->m_renderer_scanline.attach(r->m_renderer_base);

double gamma = atof(msGetOutputFormatOption( format, "GAMMA", "0.75" ));

if(gamma > 0.0 && gamma < 1.0) {

r->m_rasterizer_aa_gamma.gamma(mapserver::gamma_linear(0.0,gamma));

}

if( bg && !format->transparent )

r->m_renderer_base.clear(aggColor(bg));

else

r->m_renderer_base.clear(AGG_NO_COLOR);

if (!bg || format->transparent || format->imagemode == MS_IMAGEMODE_RGBA ) {

r->use_alpha = true;

} else {

r->use_alpha = false;

}

image->img.plugin = (void*) r;

return image;

}

int agg2SaveImage(imageObj *img, mapObj* map, FILE *fp, outputFormatObj * format)

{

msSetError(MS_MISCERR, "AGG2 does not support direct image saving", "agg2SaveImage()");

return MS_FAILURE;

}

/*...*/

/* helper functions */

int agg2GetTruetypeTextBBox(rendererVTableObj *renderer, char **fonts, int numfonts, double size, char *string,

rectObj *rect, double **advances,int bAdjustBaseline)

{

aggRendererCache *cache = (aggRendererCache*)MS_RENDERER_CACHE(renderer);

if(aggLoadFont(cache,fonts[0],size) == MS_FAILURE)

return MS_FAILURE;

int curfontidx = 0;

int unicode, curGlyph = 1, numglyphs = 0;

if (advances) {

numglyphs = msGetNumGlyphs(string);

}

const mapserver::glyph_cache* glyph;

string += msUTF8ToUniChar(string, &unicode);

if(curfontidx != 0) {

if(aggLoadFont(cache,fonts[0],size) == MS_FAILURE)

return MS_FAILURE;

curfontidx = 0;

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mapserver/mapagg.cpp at master · fredj/mapserver · GitHub

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