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https://github.com/netsurf-browser/netsurf
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SVG support for Amiga version using libsvgtiny and libcairo
Cairo plotter for arcs Cairo support is experimental and can be enabled with option NETSURF_AMIGA_USE_CAIRO For some reason linking against shared objects breaks forms. svn path=/trunk/netsurf/; revision=5939
This commit is contained in:
Chris Young
parent
2967b76f4a
commit
fcf46a91b6
11
Makefile
11
Makefile
@ -434,15 +434,22 @@ ifeq ($(TARGET),amiga)
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NETSURF_FEATURE_BMP_CFLAGS := -DWITH_BMP
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NETSURF_FEATURE_GIF_CFLAGS := -DWITH_GIF
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NETSURF_FEATURE_PNG_CFLAGS := -DWITH_PNG
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NETSURF_FEATURE_NSSVG_CFLAGS := -DWITH_NS_SVG
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$(eval $(call feature_enabled,ROSPRITE,-DWITH_NSSPRITE,-lrosprite,RISC OS Sprite decoder))
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$(eval $(call feature_enabled,HUBBUB,-DWITH_HUBBUB,-lhubbub -lparserutils,Hubbub HTML parser))
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$(eval $(call feature_enabled,HUBBUB,-DWITH_HUBBUB,-lhubbub,Hubbub HTML parser))
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$(eval $(call feature_enabled,BMP,-DWITH_BMP,-lnsbmp,NetSurf BMP decoder))
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$(eval $(call feature_enabled,GIF,-DWITH_GIF,-lnsgif,NetSurf GIF decoder))
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$(eval $(call feature_enabled,PNG,-DWITH_PNG,-lpng,PNG support))
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$(eval $(call feature_enabled,NSSVG,-DWITH_NS_SVG,-lsvgtiny,SVG rendering))
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CFLAGS += -mcrt=newlib -D__USE_INLINE__ -std=c99 -I . -Dnsamiga
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LDFLAGS += -lxml2 -lcurl -lm -lsocket -lpthread -lregex -lauto -lraauto -lssl -lcrypto -lamisslauto -mcrt=newlib
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LDFLAGS += -lxml2 -lcurl -lm -lsocket -lpthread -lregex -lauto -lraauto -lssl -lcrypto -lamisslauto -lparserutils -mcrt=newlib
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ifeq ($(NETSURF_AMIGA_USE_CAIRO),YES)
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CFLAGS += -DNS_AMIGA_CAIRO
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LDFLAGS += -use-dynld -lcairo -lpixman-1 -lfreetype -lfontconfig -lpng12 -lexpat
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endif
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endif
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# ----------------------------------------------------------------------------
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@ -167,6 +167,17 @@ ifeq ($(TARGET),amiga)
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# Valid options: YES, NO, AUTO (highly recommended)
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NETSURF_USE_HUBBUB := YES
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# Enable NetSurf's use of libsvgtiny for displaying SVGs
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# (NB: Requires NETSURF_AMIGA_USE_CAIRO)
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# Valid options: YES, NO
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NETSURF_USE_NSSVG := NO
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# Enable NetSurf's use of libcairo for some plotter functions
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# This will also link NetSurf with shared objects, and
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# requires AmigaOS 4.1 or higher to run the resulting executable
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# Valid options: YES, NO
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NETSURF_AMIGA_USE_CAIRO := NO
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# Optimisation levels
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CFLAGS += -O2 -Wuninitialized
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147
amiga/plotters.c
147
amiga/plotters.c
@ -30,6 +30,17 @@
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#include "amiga/options.h"
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#include <graphics/blitattr.h>
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#include <graphics/composite.h>
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#include "utils/log.h"
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#include <math.h>
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#ifndef M_PI /* For some reason we don't always get this from math.h */
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#define M_PI 3.14159265358979323846
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#endif
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#ifdef NS_AMIGA_CAIRO
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#include <cairo/cairo.h>
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#include <cairo/cairo-amigaos.h>
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#endif
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#define PATT_DOT 0xAAAA
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#define PATT_DASH 0xCCCC
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@ -55,6 +66,41 @@ const struct plotter_table amiplot = {
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false // option_knockout
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};
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#ifdef NS_AMIGA_CAIRO
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void ami_cairo_set_colour(cairo_t *cr,colour c)
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{
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int r, g, b;
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r = c & 0xff;
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g = (c & 0xff00) >> 8;
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b = (c & 0xff0000) >> 16;
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cairo_set_source_rgba(cr, r / 255.0,
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g / 255.0, b / 255.0, 1.0);
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}
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void ami_cairo_set_solid(cairo_t *cr)
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{
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double dashes = 0;
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cairo_set_dash(cr, &dashes, 0, 0);
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}
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void ami_cairo_set_dotted(cairo_t *cr)
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{
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double cdashes = 1;
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cairo_set_dash(cr, &cdashes, 1, 0);
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}
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void ami_cairo_set_dashed(cairo_t *cr)
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{
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double cdashes = 3;
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cairo_set_dash(cr, &cdashes, 1, 0);
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}
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#endif
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bool ami_clg(colour c)
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{
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SetRPAttrs(currp,RPTAG_BPenColor,p96EncodeColor(RGBFB_A8B8G8R8,c),
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@ -234,6 +280,22 @@ bool ami_disc(int x, int y, int radius, colour c, bool filled)
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bool ami_arc(int x, int y, int radius, int angle1, int angle2,
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colour c)
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{
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#ifdef NS_AMIGA_CAIRO
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cairo_surface_t *surface = cairo_amigaos_surface_create(currp->BitMap);
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cairo_t *cr = cairo_create(surface);
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ami_cairo_set_colour(cr,c);
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ami_cairo_set_solid(cr);
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cairo_set_line_width(cr, 1);
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cairo_arc(cr, x, y, radius,
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(angle1 + 90) * (M_PI / 180),
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(angle2 + 90) * (M_PI / 180));
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cairo_stroke(cr);
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cairo_destroy (cr);
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cairo_surface_destroy(surface);
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#else
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/* http://www.crbond.com/primitives.htm
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CommonFuncsPPC.lha */
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//DebugPrintF("arc\n");
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@ -242,6 +304,7 @@ CommonFuncsPPC.lha */
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TAG_DONE);
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// DrawArc(currp,x,y,(float)angle1,(float)angle2,radius);
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#endif
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return true;
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}
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@ -437,6 +500,88 @@ bool ami_flush(void)
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bool ami_path(float *p, unsigned int n, colour fill, float width,
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colour c, float *transform)
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{
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/* Not implemented yet - unable to locate website which requires this plotter! */
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/* For SVG only, because it needs Bezier curves we are going to cheat
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and insist on Cairo */
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#ifdef NS_AMIGA_CAIRO
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cairo_surface_t *surface = cairo_amigaos_surface_create(currp->BitMap);
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cairo_t *cr = cairo_create(surface);
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unsigned int i;
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cairo_matrix_t old_ctm, n_ctm;
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if (n == 0)
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return true;
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if (p[0] != PLOTTER_PATH_MOVE) {
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LOG(("Path does not start with move"));
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return false;
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}
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/* Save CTM */
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cairo_get_matrix(cr, &old_ctm);
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/* Set up line style and width */
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cairo_set_line_width(cr, 1);
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ami_cairo_set_solid(cr);
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/* Load new CTM */
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n_ctm.xx = transform[0];
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n_ctm.yx = transform[1];
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n_ctm.xy = transform[2];
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n_ctm.yy = transform[3];
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n_ctm.x0 = transform[4];
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n_ctm.y0 = transform[5];
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cairo_set_matrix(cr, &n_ctm);
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/* Construct path */
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for (i = 0; i < n; ) {
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if (p[i] == PLOTTER_PATH_MOVE) {
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cairo_move_to(cr, p[i+1], p[i+2]);
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i += 3;
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} else if (p[i] == PLOTTER_PATH_CLOSE) {
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cairo_close_path(cr);
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i++;
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} else if (p[i] == PLOTTER_PATH_LINE) {
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cairo_line_to(cr, p[i+1], p[i+2]);
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i += 3;
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} else if (p[i] == PLOTTER_PATH_BEZIER) {
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cairo_curve_to(cr, p[i+1], p[i+2],
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p[i+3], p[i+4],
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p[i+5], p[i+6]);
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i += 7;
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} else {
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LOG(("bad path command %f", p[i]));
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/* Reset matrix for safety */
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cairo_set_matrix(cr, &old_ctm);
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return false;
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}
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}
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/* Restore original CTM */
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cairo_set_matrix(cr, &old_ctm);
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/* Now draw path */
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if (fill != TRANSPARENT) {
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ami_cairo_set_colour(cr,fill);
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if (c != TRANSPARENT) {
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/* Fill & Stroke */
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cairo_fill_preserve(cr);
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ami_cairo_set_colour(cr,c);
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cairo_stroke(cr);
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} else {
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/* Fill only */
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cairo_fill(cr);
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}
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} else if (c != TRANSPARENT) {
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/* Stroke only */
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ami_cairo_set_colour(cr,c);
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cairo_stroke(cr);
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}
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cairo_destroy (cr);
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cairo_surface_destroy(surface);
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#endif
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return true;
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}
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