From af0732a2bf24fbea12a085b855224577e7101851 Mon Sep 17 00:00:00 2001 From: kiirala Date: Fri, 20 Jul 2007 19:50:41 +0000 Subject: [PATCH] =?utf8?q?Patch=20from=20Jean-Ren=C3=A9=20Reinhard:=20supp?= =?utf8?q?ort=20for=20feDiffuseLighting=20and=20feSpecularLighting=20filte?= =?utf8?q?r=20primitives?= MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit --- src/Makefile_insert | 3 + src/attributes.cpp | 10 + src/attributes.h | 10 + src/display/Makefile_insert | 11 +- src/display/nr-3dutils.cpp | 185 ++++++++++++++ src/display/nr-3dutils.h | 111 ++++++++ src/display/nr-filter-diffuselighting.cpp | 181 +++++++++++++ src/display/nr-filter-diffuselighting.h | 60 +++++ src/display/nr-filter-specularlighting.cpp | 190 ++++++++++++++ src/display/nr-filter-specularlighting.h | 61 +++++ src/display/nr-filter.cpp | 6 +- src/display/nr-light-types.h | 25 ++ src/display/nr-light.cpp | 119 +++++++++ src/display/nr-light.h | 160 ++++++++++++ src/sp-fediffuselighting.cpp | 185 +++++++++++++- src/sp-fediffuselighting.h | 13 +- src/sp-fedistantlight.cpp | 209 +++++++++++++++ src/sp-fedistantlight.h | 59 +++++ src/sp-fepointlight.cpp | 221 ++++++++++++++++ src/sp-fepointlight.h | 61 +++++ src/sp-fespecularlighting.cpp | 197 ++++++++++++++- src/sp-fespecularlighting.h | 14 +- src/sp-fespotlight.cpp | 281 +++++++++++++++++++++ src/sp-fespotlight.h | 70 +++++ src/sp-object-repr.cpp | 6 + 25 files changed, 2423 insertions(+), 25 deletions(-) create mode 100644 src/display/nr-3dutils.cpp create mode 100644 src/display/nr-3dutils.h create mode 100644 src/display/nr-filter-diffuselighting.cpp create mode 100644 src/display/nr-filter-diffuselighting.h create mode 100644 src/display/nr-filter-specularlighting.cpp create mode 100644 src/display/nr-filter-specularlighting.h create mode 100644 src/display/nr-light-types.h create mode 100644 src/display/nr-light.cpp create mode 100644 src/display/nr-light.h create mode 100644 src/sp-fedistantlight.cpp create mode 100644 src/sp-fedistantlight.h create mode 100644 src/sp-fepointlight.cpp create mode 100644 src/sp-fepointlight.h create mode 100644 src/sp-fespotlight.cpp create mode 100644 src/sp-fespotlight.h diff --git a/src/Makefile_insert b/src/Makefile_insert index 1371039c1..548a49334 100644 --- a/src/Makefile_insert +++ b/src/Makefile_insert @@ -166,6 +166,7 @@ libinkpre_a_SOURCES = \ sp-fediffuselighting-fns.h \ sp-fedisplacementmap.cpp sp-fedisplacementmap.h \ sp-fedisplacementmap-fns.h \ + sp-fedistantlight.cpp sp-fedistantlight.h \ sp-feflood.cpp sp-feflood.h \ sp-feflood-fns.h \ sp-feimage.cpp sp-feimage.h \ @@ -176,8 +177,10 @@ libinkpre_a_SOURCES = \ sp-femorphology-fns.h \ sp-feoffset.cpp sp-feoffset.h \ sp-feoffset-fns.h \ + sp-fepointlight.cpp sp-fepointlight.h \ sp-fespecularlighting.cpp sp-fespecularlighting.h \ sp-fespecularlighting-fns.h \ + sp-fespotlight.cpp sp-fespotlight.h \ sp-fetile.cpp sp-fetile.h \ sp-fetile-fns.h \ sp-feturbulence.cpp sp-feturbulence.h \ diff --git a/src/attributes.cpp b/src/attributes.cpp index 968e38633..025f1991b 100644 --- a/src/attributes.cpp +++ b/src/attributes.cpp @@ -213,6 +213,16 @@ static SPStyleProp const props[] = { {SP_ATTR_XCHANNELSELECTOR, "xChannelSelector"}, {SP_ATTR_YCHANNELSELECTOR, "yChannelSelector"}, //{SP_ATTR_IN2, "in2"}, + /*feDistantLight*/ + {SP_ATTR_AZIMUTH, "azimuth"}, + {SP_ATTR_ELEVATION, "elevation"}, + /*fePointLight*/ + {SP_ATTR_Z, "z"}, + /*feSpotLight*/ + {SP_ATTR_POINTSATX, "pointsAtX"}, + {SP_ATTR_POINTSATY, "pointsAtY"}, + {SP_ATTR_POINTSATZ, "pointsAtZ"}, + {SP_ATTR_LIMITINGCONEANGLE, "limitingConeAngle"}, /*feFlood*/ {SP_ATTR_FLOODCOLOR, "flood-color"}, {SP_ATTR_FLOODOPACITY, "flood-opacity"}, diff --git a/src/attributes.h b/src/attributes.h index 9e658f562..c7f1fb71e 100644 --- a/src/attributes.h +++ b/src/attributes.h @@ -213,6 +213,16 @@ enum SPAttributeEnum { SP_ATTR_XCHANNELSELECTOR, SP_ATTR_YCHANNELSELECTOR, //SP_ATTR_IN2, + /*feDistantLight*/ + SP_ATTR_AZIMUTH, + SP_ATTR_ELEVATION, + /*fePointLight*/ + SP_ATTR_Z, + /*feSpotLight*/ + SP_ATTR_POINTSATX, + SP_ATTR_POINTSATY, + SP_ATTR_POINTSATZ, + SP_ATTR_LIMITINGCONEANGLE, /*feFlood*/ SP_ATTR_FLOODCOLOR, SP_ATTR_FLOODOPACITY, diff --git a/src/display/Makefile_insert b/src/display/Makefile_insert index 1a4c01011..bc6fb3336 100644 --- a/src/display/Makefile_insert +++ b/src/display/Makefile_insert @@ -15,6 +15,8 @@ display/canvas-arena.$(OBJEXT): helper/sp-marshal.h display/sp-canvas.$(OBJEXT): helper/sp-marshal.h display_libspdisplay_a_SOURCES = \ + display/nr-3dutils.h \ + display/nr-3dutils.cpp \ display/nr-arena-forward.h \ display/nr-arena.cpp \ display/nr-arena.h \ @@ -71,8 +73,12 @@ display_libspdisplay_a_SOURCES = \ display/nr-filter-gaussian.h \ display/nr-filter-blend.cpp \ display/nr-filter-blend.h \ + display/nr-filter-diffuselighting.cpp \ + display/nr-filter-diffuselighting.h \ display/nr-filter-offset.cpp \ display/nr-filter-offset.h \ + display/nr-filter-specularlighting.cpp \ + display/nr-filter-specularlighting.h \ display/nr-filter-composite.h \ display/nr-filter-composite.cpp \ display/nr-filter-slot.cpp \ @@ -86,7 +92,10 @@ display_libspdisplay_a_SOURCES = \ display/pixblock-transform.cpp \ display/pixblock-transform.h \ display/inkscape-cairo.cpp \ - display/inkscape-cairo.h + display/inkscape-cairo.h \ + display/nr-light.h \ + display/nr-light.cpp \ + display/nr-light-types.h display_bezier_utils_test_SOURCES = display/bezier-utils-test.cpp display_bezier_utils_test_LDADD = libnr/libnr.a -lglib-2.0 diff --git a/src/display/nr-3dutils.cpp b/src/display/nr-3dutils.cpp new file mode 100644 index 000000000..c8171ccd2 --- /dev/null +++ b/src/display/nr-3dutils.cpp @@ -0,0 +1,185 @@ +/* + * 3D utils. + * + * Authors: + * Jean-Rene Reinhard + * + * Copyright (C) 2007 authors + * + * Released under GNU GPL, read the file 'COPYING' for more information + */ + +#include + +#include "libnr/nr-pixblock.h" +#include "libnr/nr-matrix.h" +#include "display/nr-3dutils.h" +#include + +namespace NR { + +#define BEGIN 0 // TOP or LEFT +#define MIDDLE 1 +#define END 2 // BOTTOM or RIGHT + +#define START(v) ((v)==BEGIN? 1 : 0) +#define FINISH(v) ((v)==END? 1 : 2) + +signed char K_X[3][3][3][3] = { + //K_X[TOP] + { + //K_X[TOP][LEFT] + { + { 0, 0, 0}, + { 0, -2, 2}, + { 0, -1, 1} + }, + { + { 0, 0, 0}, + {-2, 0, 2}, + {-1, 0, 1} + }, + { + { 0, 0, 0}, + {-2, 2, 0}, + {-1, 1, 0} + } + }, + //K_X[MIDDLE] + { + //K_X[MIDDLE][LEFT] + { + { 0, -1, 1}, + { 0, -2, 2}, + { 0, -1, 1} + }, + { + {-1, 0, 1}, + {-2, 0, 2}, + {-1, 0, 1} + }, + { + {-1, 1, 0}, + {-2, 2, 0}, + {-1, 1, 0} + } + }, + //K_X[BOTTOM] + { + //K_X[BOTTOM][LEFT] + { + { 0, -1, 1}, + { 0, -2, 2}, + { 0, 0, 0} + }, + { + {-1, 0, 1}, + {-2, 0, 2}, + { 0, 0, 0} + }, + { + {-1, 1, 0}, + {-2, 2, 0}, + { 0, 0, 0} + } + } +}; + +//K_Y is obtained by transposing K_X globally and each of its components + +gdouble FACTOR_X[3][3] = { + {2./3, 1./3, 2./3}, + {1./2, 1./4, 1./2}, + {2./3, 1./3, 2./3} +}; + +//FACTOR_Y is obtained by transposing FACTOR_X + +inline +int get_carac(int i, int len, int delta) { + if (i < delta) + return BEGIN; + else if (i > len - 1 - delta) + return END; + else + return MIDDLE; +} + +//assumes in is RGBA +//should be made more resistant +void compute_surface_normal(Fvector &N, gdouble ss, NRPixBlock *in, int i, int j, int dx, int dy) { + int w = in->area.x1 - in->area.x0; + int h = in->area.y1 - in->area.y0; + int k, l, alpha_idx, alpha_idx_y; + int x_carac, y_carac; + gdouble alpha; + gdouble accu_x; + gdouble accu_y; + unsigned char *data = NR_PIXBLOCK_PX (in); + g_assert(in->mode == NR_PIXBLOCK_MODE_R8G8B8A8P); + x_carac = get_carac(j, w, dx); //LEFT, MIDDLE or RIGHT + y_carac = get_carac(i, h, dy); //TOP, MIDDLE or BOTTOM + alpha_idx = 4*(i*w + j); + accu_x = 0; + accu_y = 0; + for (k = START(y_carac); k <= FINISH(y_carac); k++) { + alpha_idx_y = alpha_idx + 4*(k-1)*dy*w; + for (l = START(x_carac); l <= FINISH(x_carac); l++) { + alpha = (data + alpha_idx_y + 4*dx*(l-1))[3]; + accu_x += K_X[y_carac][x_carac][k][l] * alpha / 255; + accu_y += K_X[x_carac][y_carac][l][k] * alpha / 255; + } + } + N[X_3D] = -1 * ss * FACTOR_X[y_carac][x_carac] * accu_x / dx; + N[Y_3D] = -1 * ss * FACTOR_X[x_carac][y_carac] * accu_y / dy; + N[Z_3D] = 1; + normalize_vector(N); + //std::cout << "(" << N[X_3D] << ", " << N[Y_3D] << ", " << N[Z_3D] << ")" << std::endl; +} + +void convert_coord(gdouble &x, gdouble &y, gdouble &z, Matrix const &trans) { + Point p = Point(x, y); + p *= trans; + x = p[X]; + y = p[Y]; + z *= trans[0]; +} + +gdouble norm(const Fvector &v) { + return sqrt(v[X_3D]*v[X_3D] + v[Y_3D]*v[Y_3D] + v[Z_3D]*v[Z_3D]); +} + +void normalize_vector(Fvector &v) { + int i, j; + gdouble nv = norm(v); + //TODO test nv == 0 + for (j = 0; j < 3; j++) { + v[j] /= nv; + } +} + +gdouble scalar_product(const Fvector &a, const Fvector &b) { + return a[X_3D] * b[X_3D] + + a[Y_3D] * b[Y_3D] + + a[Z_3D] * b[Z_3D]; +} + +void normalized_sum(Fvector &r, const Fvector &a, const Fvector &b) { + r[X_3D] = a[X_3D] + b[X_3D]; + r[Y_3D] = a[Y_3D] + b[Y_3D]; + r[Z_3D] = a[Z_3D] + b[Z_3D]; + normalize_vector(r); +} + +}/* namespace NR */ + +/* + Local Variables: + mode:c++ + c-file-style:"stroustrup" + c-file-offsets:((innamespace . 0)(inline-open . 0)(case-label . +)) + indent-tabs-mode:nil + fill-column:99 + End: +*/ +// vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:encoding=utf-8:textwidth=99 : diff --git a/src/display/nr-3dutils.h b/src/display/nr-3dutils.h new file mode 100644 index 000000000..4baa9cc86 --- /dev/null +++ b/src/display/nr-3dutils.h @@ -0,0 +1,111 @@ +#ifndef __NR_3DUTILS_H__ +#define __NR_3DUTILS_H__ + +/* + * 3D utils. Definition of gdouble vectors of dimension 3 and of some basic + * functions. + * + * Authors: + * Jean-Rene Reinhard + * + * Copyright (C) 2007 authors + * + * Released under GNU GPL, read the file 'COPYING' for more information + */ + +#include + +struct NRPixBlock; + +namespace NR { + +struct Matrix; + +#define X_3D 0 +#define Y_3D 1 +#define Z_3D 2 + +/** + * a type of 3 gdouble components vectors + */ +typedef gdouble Fvector[3]; + +/** + * The eye vector + */ +const static Fvector EYE_VECTOR = {0, 0, 1}; + +/** + * returns the euclidian norm of the vector v + * + * \param v a reference to a vector with double components + * \return the euclidian norm of v + */ +gdouble norm(const Fvector &v); + +/** + * Normalizes a vector + * + * \param v a reference to a vector to normalize + */ +void normalize_vector(Fvector &v); + +/** + * Computes the scalar product between two Fvectors + * + * \param a a Fvector reference + * \param b a Fvector reference + * \return the scalar product of a and b + */ +gdouble scalar_product(const Fvector &a, const Fvector &b); + +/** + * Computes the normalized sum of two Fvectors + * + * \param r a Fvector reference where we store the result + * \param a a Fvector reference + * \param b a Fvector reference + */ +void normalized_sum(Fvector &r, const Fvector &a, const Fvector &b); + +/** + * Computes the unit suface normal vector of surface given by "in" at (i, j) + * and store it into N. "in" is a (NRPixBlock *) in mode RGBA but only the alpha + * channel is considered as a bump map. ss is the altitude when for the alpha + * value 255. dx and dy are the deltas used to compute in our discrete setting + * + * \param N a reference to a Fvector in which we store the unit surface normal + * \param ss the surface scale + * \param in a NRPixBlock * whose alpha channel codes the surface + * \param i the x coordinate of the point at which we compute the normal + * \param j the y coordinate of the point at which we compute the normal + * \param dx the delta used in the x coordinate + * \param dy the delta used in the y coordinate + */ +void compute_surface_normal(Fvector &N, gdouble ss, NRPixBlock *in, int i, int j, int dx, int dy); + +/** + * Applies the transformation matrix to (x, y, z). This function assumes that + * trans[0] = trans[3]. x and y are transformed according to trans, z is + * multiplied by trans[0]. + * + * \param x a reference to a x coordinate + * \param y a reference to a y coordinate + * \param z a reference to a z coordinate + * \param z a reference to a transformation matrix + */ +void convert_coord(gdouble &x, gdouble &y, gdouble &z, Matrix const &trans); + +} /* namespace NR */ + +#endif /* __NR_3DUTILS_H__ */ +/* + Local Variables: + mode:c++ + c-file-style:"stroustrup" + c-file-offsets:((innamespace . 0)(inline-open . 0)(case-label . +)) + indent-tabs-mode:nil + fill-column:99 + End: +*/ +// vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:encoding=utf-8:textwidth=99 : diff --git a/src/display/nr-filter-diffuselighting.cpp b/src/display/nr-filter-diffuselighting.cpp new file mode 100644 index 000000000..736055f32 --- /dev/null +++ b/src/display/nr-filter-diffuselighting.cpp @@ -0,0 +1,181 @@ +/* + * feDiffuseLighting renderer + * + * Authors: + * Niko Kiirala + * Jean-Rene Reinhard + * + * Copyright (C) 2007 authors + * + * Released under GNU GPL, read the file 'COPYING' for more information + */ + +#include + +#include "display/nr-3dutils.h" +#include "display/nr-arena-item.h" +#include "display/nr-filter-diffuselighting.h" +#include "display/nr-filter-getalpha.h" +#include "display/nr-filter-slot.h" +#include "display/nr-light.h" +#include "libnr/nr-blit.h" +#include "libnr/nr-pixblock.h" +#include "libnr/nr-matrix.h" +#include "libnr/nr-rect-l.h" +#include "color.h" +#include "round.h" + +namespace NR { + +FilterDiffuseLighting::FilterDiffuseLighting() +{ + light_type = NO_LIGHT; + diffuseConstant = 1; + surfaceScale = 1; + lighting_color = 0xffffffff; +} + +FilterPrimitive * FilterDiffuseLighting::create() { + return new FilterDiffuseLighting(); +} + +FilterDiffuseLighting::~FilterDiffuseLighting() +{} + +#define COMPUTE_INTER(inter, N, L, kd) \ +do {\ + (inter) = (kd) * scalar_product((N), (L)); \ + if ((inter) < 0) (inter) = 0; \ +}while(0) + +int FilterDiffuseLighting::render(FilterSlot &slot, Matrix const &trans) { + NRPixBlock *in = filter_get_alpha(slot.get(_input)); + NRPixBlock *out = new NRPixBlock; + + int w = in->area.x1 - in->area.x0; + int h = in->area.y1 - in->area.y0; + int x0 = in->area.x0; + int y0 = in->area.y0; + int i, j; + //As long as FilterRes and kernel unit is not supported we hardcode the + //default value + int dx = 1; //TODO setup + int dy = 1; //TODO setup + //surface scale + //TODO for the time being, assumes userSpaceOnUse + gdouble ss = surfaceScale * trans[0]; + gdouble kd = diffuseConstant; //diffuse lighting constant + + Fvector L, N, LC; + gdouble inter; + + nr_pixblock_setup_fast(out, in->mode, + in->area.x0, in->area.y0, in->area.x1, in->area.y1, + true); + unsigned char *data_i = NR_PIXBLOCK_PX (in); + unsigned char *data_o = NR_PIXBLOCK_PX (out); + //No light, nothing to do + switch (light_type) { + case DISTANT_LIGHT: + //the light vector is constant + { + DistantLight *dl = new DistantLight(light.distant, lighting_color); + dl->light_vector(L); + dl->light_components(LC); + //finish the work + for (i = 0, j = 0; i < w*h; i++) { + compute_surface_normal(N, ss, in, i / w, i % w, dx, dy); + COMPUTE_INTER(inter, N, L, kd); + + data_o[j++] = (unsigned char) round(inter * LC[LIGHT_RED]); + data_o[j++] = (unsigned char) round(inter * LC[LIGHT_GREEN]); + data_o[j++] = (unsigned char) round(inter * LC[LIGHT_BLUE]); + data_o[j++] = 255; + } + out->empty = FALSE; + delete dl; + } + break; + case POINT_LIGHT: + { + PointLight *pl = new PointLight(light.point, lighting_color, trans); + pl->light_components(LC); + //TODO we need a reference to the filter to determine primitiveUnits + //slot._arena_item->filter seems to be ok on simple examples + //for now assume userSpaceOnUse + //if objectBoundingBox is used, use a different matrix for light_vector + //finish the work + for (i = 0, j = 0; i < w*h; i++) { + compute_surface_normal(N, ss, in, i / w, i % w, dx, dy); + pl->light_vector(L, + i % w + x0, + i / w + y0, + ss * (double) data_i[4*i+3]/ 255); + COMPUTE_INTER(inter, N, L, kd); + + data_o[j++] = (unsigned char) round(inter * LC[LIGHT_RED]); + data_o[j++] = (unsigned char) round(inter * LC[LIGHT_GREEN]); + data_o[j++] = (unsigned char) round(inter * LC[LIGHT_BLUE]); + data_o[j++] = 255; + } + out->empty = FALSE; + delete pl; + } + break; + case SPOT_LIGHT: + { + SpotLight *sl = new SpotLight(light.spot, lighting_color, trans); + //TODO we need a reference to the filter to determine primitiveUnits + //slot._arena_item->filter seems to be ok on simple examples + //for now assume userSpaceOnUse + //if objectBoundingBox is used, use a different matrix for light_vector + //finish the work + for (i = 0, j = 0; i < w*h; i++) { + compute_surface_normal(N, ss, in, i / w, i % w, dx, dy); + sl->light_vector(L, + i % w + x0, + i / w + y0, + ss * (double) data_i[4*i+3]/ 255); + sl->light_components(LC, L); + COMPUTE_INTER(inter, N, L, kd); + + data_o[j++] = (unsigned char) round(inter * LC[LIGHT_RED]); + data_o[j++] = (unsigned char) round(inter * LC[LIGHT_GREEN]); + data_o[j++] = (unsigned char) round(inter * LC[LIGHT_BLUE]); + data_o[j++] = 255; + } + out->empty = FALSE; + delete sl; + } + break; + //else unknown light source, doing nothing + case NO_LIGHT: + default: + { + if (light_type != NO_LIGHT) + g_warning("unknown light source %d", light_type); + for (i = 0; i < w*h; i++) { + data_o[4*i+3] = 255; + } + out->empty = false; + } + } + + //finishing + slot.set(_output, out); + delete in; + return 0; +} + +} /* namespace NR */ + +/* + Local Variables: + mode:c++ + c-file-style:"stroustrup" + c-file-offsets:((innamespace . 0)(inline-open . 0)(case-label . +)) + indent-tabs-mode:nil + fill-column:99 + End: +*/ +// vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:encoding=utf-8:textwidth=99 : diff --git a/src/display/nr-filter-diffuselighting.h b/src/display/nr-filter-diffuselighting.h new file mode 100644 index 000000000..486b81aca --- /dev/null +++ b/src/display/nr-filter-diffuselighting.h @@ -0,0 +1,60 @@ +#ifndef __NR_FILTER_DIFFUSELIGHTING_H__ +#define __NR_FILTER_DIFFUSELIGHTING_H__ + +/* + * feDiffuseLighting renderer + * + * Authors: + * Niko Kiirala + * Jean-Rene Reinhard + * + * Copyright (C) 2007 authors + * + * Released under GNU GPL, read the file 'COPYING' for more information + */ + +#include +#include "display/nr-light-types.h" +#include "display/nr-filter-primitive.h" +#include "display/nr-filter-slot.h" +#include "libnr/nr-matrix.h" +#include "sp-fedistantlight.h" +#include "sp-fepointlight.h" +#include "sp-fespotlight.h" +#include "color.h" + +namespace NR { + +class FilterDiffuseLighting : public FilterPrimitive { +public: + union { + SPFeDistantLight *distant; + SPFePointLight *point; + SPFeSpotLight *spot; + } light; + LightType light_type; + gdouble diffuseConstant; + gdouble surfaceScale; + guint32 lighting_color; + + FilterDiffuseLighting(); + static FilterPrimitive *create(); + virtual ~FilterDiffuseLighting(); + virtual int render(FilterSlot &slot, Matrix const &trans); + +private: +}; + +} /* namespace NR */ + +#endif /* __NR_FILTER_DIFFUSELIGHTING_H__ */ +/* + Local Variables: + mode:c++ + c-file-style:"stroustrup" + c-file-offsets:((innamespace . 0)(inline-open . 0)(case-label . +)) + indent-tabs-mode:nil + fill-column:99 + End: +*/ +// vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:encoding=utf-8:textwidth=99 : diff --git a/src/display/nr-filter-specularlighting.cpp b/src/display/nr-filter-specularlighting.cpp new file mode 100644 index 000000000..117df28f7 --- /dev/null +++ b/src/display/nr-filter-specularlighting.cpp @@ -0,0 +1,190 @@ +/* + * feSpecularLighting renderer + * + * Authors: + * Niko Kiirala + * Jean-Rene Reinhard + * + * Copyright (C) 2007 authors + * + * Released under GNU GPL, read the file 'COPYING' for more information + */ + +#include +#include + +#include "display/nr-3dutils.h" +#include "display/nr-arena-item.h" +#include "display/nr-filter-specularlighting.h" +#include "display/nr-filter-getalpha.h" +#include "display/nr-filter-slot.h" +#include "display/nr-light.h" +#include "libnr/nr-blit.h" +#include "libnr/nr-pixblock.h" +#include "libnr/nr-matrix.h" +#include "libnr/nr-rect-l.h" +#include "color.h" +#include "round.h" + +namespace NR { + +FilterSpecularLighting::FilterSpecularLighting() +{ + light_type = NO_LIGHT; + specularConstant = 1; + specularExponent = 1; + surfaceScale = 1; + lighting_color = 0xffffffff; +} + +FilterPrimitive * FilterSpecularLighting::create() { + return new FilterSpecularLighting(); +} + +FilterSpecularLighting::~FilterSpecularLighting() +{} + +//Investigating Phong Lighting model we should not take N.H but +//R.E which equals to 2*N.H^2 - 1 +#define COMPUTE_INTER(inter, H, N, ks, speculaExponent) \ +do {\ + gdouble scal = scalar_product((N), (H));\ + scal = 2 * scal * scal - 1;\ + if (scal <= 0)\ + (inter) = 0;\ + else\ + (inter) = (ks) * std::pow(scal, (specularExponent));\ +}while(0) + +int FilterSpecularLighting::render(FilterSlot &slot, Matrix const &trans) { + NRPixBlock *in = filter_get_alpha(slot.get(_input)); + NRPixBlock *out = new NRPixBlock; + + //Fvector *L = NULL; //vector to the light + + int w = in->area.x1 - in->area.x0; + int h = in->area.y1 - in->area.y0; + int x0 = in->area.x0; + int y0 = in->area.y0; + int i, j; + //As long as FilterRes and kernel unit is not supported we hardcode the + //default value + int dx = 1; //TODO setup + int dy = 1; //TODO setup + //surface scale + //TODO for the time being, assumes userSpaceOnUse + gdouble ss = surfaceScale * trans[0]; + gdouble ks = specularConstant; //diffuse lighting constant + Fvector L, N, LC, H; + gdouble inter; + + nr_pixblock_setup_fast(out, in->mode, + in->area.x0, in->area.y0, in->area.x1, in->area.y1, + true); + unsigned char *data_i = NR_PIXBLOCK_PX (in); + unsigned char *data_o = NR_PIXBLOCK_PX (out); + //No light, nothing to do + switch (light_type) { + case DISTANT_LIGHT: + //the light vector is constant + { + DistantLight *dl = new DistantLight(light.distant, lighting_color); + dl->light_vector(L); + dl->light_components(LC); + normalized_sum(H, L, EYE_VECTOR); + //finish the work + for (i = 0, j = 0; i < w*h; i++) { + compute_surface_normal(N, ss, in, i / w, i % w, dx, dy); + COMPUTE_INTER(inter, N, H, ks, specularExponent); + + data_o[j++] = (unsigned char) round(inter * LC[LIGHT_RED]); + data_o[j++] = (unsigned char) round(inter * LC[LIGHT_GREEN]); + data_o[j++] = (unsigned char) round(inter * LC[LIGHT_BLUE]); + data_o[j++] = MAX(MAX(data_o[j-3], data_o[j-2]), data_o[j-1]); + } + out->empty = FALSE; + delete dl; + } + break; + case POINT_LIGHT: + { + PointLight *pl = new PointLight(light.point, lighting_color, trans); + pl->light_components(LC); + //TODO we need a reference to the filter to determine primitiveUnits + //slot._arena_item->filter seems to be ok on simple examples + //for now assume userSpaceOnUse + //if objectBoundingBox is used, use a different matrix for light_vector + //finish the work + for (i = 0, j = 0; i < w*h; i++) { + compute_surface_normal(N, ss, in, i / w, i % w, dx, dy); + pl->light_vector(L, + i % w + x0, + i / w + y0, + ss * (double) data_i[4*i+3]/ 255); + normalized_sum(H, L, EYE_VECTOR); + COMPUTE_INTER(inter, N, H, ks, specularExponent); + + data_o[j++] = (unsigned char) round(inter * LC[LIGHT_RED]); + data_o[j++] = (unsigned char) round(inter * LC[LIGHT_GREEN]); + data_o[j++] = (unsigned char) round(inter * LC[LIGHT_BLUE]); + data_o[j++] = MAX(MAX(data_o[j-3], data_o[j-2]), data_o[j-1]); + } + out->empty = FALSE; + delete pl; + } + break; + case SPOT_LIGHT: + { + SpotLight *sl = new SpotLight(light.spot, lighting_color, trans); + //TODO we need a reference to the filter to determine primitiveUnits + //slot._arena_item->filter seems to be ok on simple examples + //for now assume userSpaceOnUse + //if objectBoundingBox is used, use a different matrix for light_vector + //finish the work + for (i = 0, j = 0; i < w*h; i++) { + compute_surface_normal(N, ss, in, i / w, i % w, dx, dy); + sl->light_vector(L, + i % w + x0, + i / w + y0, + ss * (double) data_i[4*i+3]/ 255); + sl->light_components(LC, L); + normalized_sum(H, L, EYE_VECTOR); + COMPUTE_INTER(inter, N, H, ks, specularExponent); + + data_o[j++] = (unsigned char) round(inter * LC[LIGHT_RED]); + data_o[j++] = (unsigned char) round(inter * LC[LIGHT_GREEN]); + data_o[j++] = (unsigned char) round(inter * LC[LIGHT_BLUE]); + data_o[j++] = MAX(MAX(data_o[j-3], data_o[j-2]), data_o[j-1]); + } + out->empty = FALSE; + delete sl; + } + break; + //else unknown light source, doing nothing + case NO_LIGHT: + default: + { + if (light_type != NO_LIGHT) + g_warning("unknown light source %d", light_type); + out->empty = false; + } + } + + //finishing + slot.set(_output, out); + delete in; + return 0; +} + +} /* namespace NR */ + +/* + Local Variables: + mode:c++ + c-file-style:"stroustrup" + c-file-offsets:((innamespace . 0)(inline-open . 0)(case-label . +)) + indent-tabs-mode:nil + fill-column:99 + End: +*/ +// vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:encoding=utf-8:textwidth=99 : diff --git a/src/display/nr-filter-specularlighting.h b/src/display/nr-filter-specularlighting.h new file mode 100644 index 000000000..a9b3429f4 --- /dev/null +++ b/src/display/nr-filter-specularlighting.h @@ -0,0 +1,61 @@ +#ifndef __NR_FILTER_SPECULARLIGHTING_H__ +#define __NR_FILTER_SPECULARLIGHTING_H__ + +/* + * feSpecularLighting renderer + * + * Authors: + * Niko Kiirala + * Jean-Rene Reinhard + * + * Copyright (C) 2007 authors + * + * Released under GNU GPL, read the file 'COPYING' for more information + */ + +#include +#include "display/nr-light-types.h" +#include "display/nr-filter-primitive.h" +#include "display/nr-filter-slot.h" +#include "libnr/nr-matrix.h" +#include "sp-fedistantlight.h" +#include "sp-fepointlight.h" +#include "sp-fespotlight.h" +#include "color.h" + +namespace NR { + +class FilterSpecularLighting : public FilterPrimitive { +public: + union { + SPFeDistantLight *distant; + SPFePointLight *point; + SPFeSpotLight *spot; + } light; + LightType light_type; + gdouble surfaceScale; + gdouble specularConstant; + gdouble specularExponent; + guint32 lighting_color; + + FilterSpecularLighting(); + static FilterPrimitive *create(); + virtual ~FilterSpecularLighting(); + virtual int render(FilterSlot &slot, Matrix const &trans); + +private: +}; + +} /* namespace NR */ + +#endif /* __NR_FILTER_SPECULARLIGHTING_H__ */ +/* + Local Variables: + mode:c++ + c-file-style:"stroustrup" + c-file-offsets:((innamespace . 0)(inline-open . 0)(case-label . +)) + indent-tabs-mode:nil + fill-column:99 + End: +*/ +// vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:encoding=utf-8:textwidth=99 : diff --git a/src/display/nr-filter.cpp b/src/display/nr-filter.cpp index 61571f43b..8a22778a1 100644 --- a/src/display/nr-filter.cpp +++ b/src/display/nr-filter.cpp @@ -25,6 +25,8 @@ #include "display/nr-filter-blend.h" #include "display/nr-filter-offset.h" #include "display/nr-filter-composite.h" +#include "display/nr-filter-diffuselighting.h" +#include "display/nr-filter-specularlighting.h" #include "display/nr-arena-item.h" #include "libnr/nr-pixblock.h" @@ -313,7 +315,7 @@ void Filter::_create_constructor_table() _constructor[NR_FILTER_COMPONENTTRANSFER] = NULL; _constructor[NR_FILTER_COMPOSITE] = &FilterComposite::create; _constructor[NR_FILTER_CONVOLVEMATRIX] = NULL; - _constructor[NR_FILTER_DIFFUSELIGHTING] = NULL; + _constructor[NR_FILTER_DIFFUSELIGHTING] = &FilterDiffuseLighting::create; _constructor[NR_FILTER_DISPLACEMENTMAP] = NULL; _constructor[NR_FILTER_FLOOD] = NULL; _constructor[NR_FILTER_GAUSSIANBLUR] = &FilterGaussian::create; @@ -321,7 +323,7 @@ void Filter::_create_constructor_table() _constructor[NR_FILTER_MERGE] = NULL; _constructor[NR_FILTER_MORPHOLOGY] = NULL; _constructor[NR_FILTER_OFFSET] = &FilterOffset::create; - _constructor[NR_FILTER_SPECULARLIGHTING] = NULL; + _constructor[NR_FILTER_SPECULARLIGHTING] = &FilterSpecularLighting::create; _constructor[NR_FILTER_TILE] = NULL; _constructor[NR_FILTER_TURBULENCE] = NULL; created = true; diff --git a/src/display/nr-light-types.h b/src/display/nr-light-types.h new file mode 100644 index 000000000..87865467c --- /dev/null +++ b/src/display/nr-light-types.h @@ -0,0 +1,25 @@ +#ifndef __NR_LIGHT_TYPES_H__ +#define __NR_LIGHT_TYPES_H__ + +namespace NR { + +enum LightType{ + NO_LIGHT = 0, + DISTANT_LIGHT, + POINT_LIGHT, + SPOT_LIGHT +}; + +} /* namespace NR */ + +#endif // __NR_LIGHT_TYPES_H__ +/* + Local Variables: + mode:c++ + c-file-style:"stroustrup" + c-file-offsets:((innamespace . 0)(inline-open . 0)(case-label . +)) + indent-tabs-mode:nil + fill-column:99 + End: +*/ +// vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:encoding=utf-8:textwidth=99 : diff --git a/src/display/nr-light.cpp b/src/display/nr-light.cpp new file mode 100644 index 000000000..c2e6f1f83 --- /dev/null +++ b/src/display/nr-light.cpp @@ -0,0 +1,119 @@ +#define __NR_LIGHT_CPP__ + +/* + * Light rendering helpers + * + * Author: + * Jean-Rene Reinhard + * + * Copyright (C) 2006 Jean-Rene Reinhard + * + * Released under GNU GPL, read the file 'COPYING' for more information + */ + +#include + +#include "libnr/nr-pixops.h" +#include "display/nr-light.h" +#include "display/nr-3dutils.h" +#include "sp-fedistantlight.h" +#include "sp-fepointlight.h" +#include "sp-fespotlight.h" + +namespace NR { + +DistantLight::DistantLight(SPFeDistantLight *light, guint32 lighting_color) { + color = lighting_color; + azimuth = M_PI / 180 * light->azimuth; + elevation = M_PI / 180 * light->elevation; +} + +DistantLight::~DistantLight() {} + +void DistantLight::light_vector(Fvector &v) { + v[X_3D] = std::cos(azimuth)*std::cos(elevation); + v[Y_3D] = std::sin(azimuth)*std::cos(elevation); + v[Z_3D] = std::sin(elevation); +} + +void DistantLight::light_components(Fvector &lc) { + lc[LIGHT_RED] = NR_RGBA32_R(color); + lc[LIGHT_GREEN] = NR_RGBA32_G(color); + lc[LIGHT_BLUE] = NR_RGBA32_B(color); +} + +PointLight::PointLight(SPFePointLight *light, guint32 lighting_color, const Matrix &trans) { + color = lighting_color; + l_x = light->x; + l_y = light->y; + l_z = light->z; + convert_coord(l_x, l_y, l_z, trans); +} + +PointLight::~PointLight() {} + +void PointLight::light_vector(Fvector &v, gdouble x, gdouble y, gdouble z) { + v[X_3D] = l_x - x; + v[Y_3D] = l_y - y; + v[Z_3D] = l_z - z; + normalize_vector(v); +} + +void PointLight::light_components(Fvector &lc) { + lc[LIGHT_RED] = NR_RGBA32_R(color); + lc[LIGHT_GREEN] = NR_RGBA32_G(color); + lc[LIGHT_BLUE] = NR_RGBA32_B(color); +} + +SpotLight::SpotLight(SPFeSpotLight *light, guint32 lighting_color, const Matrix &trans) { + gdouble p_x, p_y, p_z; + color = lighting_color; + l_x = light->x; + l_y = light->y; + l_z = light->z; + p_x = light->pointsAtX; + p_y = light->pointsAtY; + p_z = light->pointsAtZ; + cos_lca = std::cos(M_PI / 180 * light->limitingConeAngle); + speExp = light->specularExponent; + convert_coord(l_x, l_y, l_z, trans); + convert_coord(p_x, p_y, p_z, trans); + S[X_3D] = p_x - l_x; + S[Y_3D] = p_y - l_y; + S[Z_3D] = p_z - l_z; + normalize_vector(S); + +} + +SpotLight::~SpotLight() {} + +void SpotLight::light_vector(Fvector &v, gdouble x, gdouble y, gdouble z) { + v[X_3D] = l_x - x; + v[Y_3D] = l_y - y; + v[Z_3D] = l_z - z; + normalize_vector(v); +} + +void SpotLight::light_components(Fvector &lc, const Fvector &L) { + gdouble spmod = (-1) * scalar_product(L, S); + if (spmod <= cos_lca) + spmod = 0; + else + spmod = std::pow(spmod, speExp); + lc[LIGHT_RED] = spmod * NR_RGBA32_R(color); + lc[LIGHT_GREEN] = spmod * NR_RGBA32_G(color); + lc[LIGHT_BLUE] = spmod * NR_RGBA32_B(color); +} + +} /* namespace NR */ + +/* + Local Variables: + mode:c++ + c-file-style:"stroustrup" + c-file-offsets:((innamespace . 0)(inline-open . 0)(case-label . +)) + indent-tabs-mode:nil + fill-column:99 + End: +*/ +// vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:encoding=utf-8:textwidth=99 : diff --git a/src/display/nr-light.h b/src/display/nr-light.h new file mode 100644 index 000000000..61c3c3909 --- /dev/null +++ b/src/display/nr-light.h @@ -0,0 +1,160 @@ +#ifndef __NR_LIGHT_H__ +#define __NR_LIGHT_H__ +/** \file + * These classes provide tools to compute interesting objects relative to light + * sources. Each class provides a constructor converting information contained + * in a sp light object into information useful in the current setting, a + * method to get the light vector (at a given point) and a method to get the + * light color components (at a given point). + */ + +#include +#include "display/nr-3dutils.h" +#include "display/nr-light-types.h" + +struct SPFeDistantLight; +struct SPFePointLight; +struct SPFeSpotLight; + +namespace NR { + +struct Matrix; + +enum LightComponent { + LIGHT_RED = 0, + LIGHT_GREEN, + LIGHT_BLUE +}; + +class DistantLight { + public: + /** + * Constructor + * + * \param light the sp light object + * \param lighting_color the lighting_color used + */ + DistantLight(SPFeDistantLight *light, guint32 lighting_color); + ~DistantLight(); + + /** + * Computes the light vector of the distant light + * + * \param v a Fvector referece where we store the result + */ + void light_vector(Fvector &v); + + /** + * Computes the light components of the distant light + * + * \param lc a Fvector referece where we store the result, X=R, Y=G, Z=B + */ + void light_components(Fvector &lc); + + private: + guint32 color; + gdouble azimuth; //azimuth in rad + gdouble elevation; //elevation in rad +}; + +class PointLight { + public: + /** + * Constructor + * + * \param light the sp light object + * \param lighting_color the lighting_color used + * \param trans the transformation between absolute coordinate (those + * employed in the sp light object) and current coordinate (those + * employed in the rendering) + */ + PointLight(SPFePointLight *light, guint32 lighting_color, const Matrix &trans); + ~PointLight(); + /** + * Computes the light vector of the distant light at point (x,y,z). + * x, y and z are given in the arena_item coordinate, they are used as + * is + * + * \param v a Fvector referece where we store the result + * \param x x coordinate of the current point + * \param y y coordinate of the current point + * \param z z coordinate of the current point + */ + void light_vector(Fvector &v, gdouble x, gdouble y, gdouble z); + + /** + * Computes the light components of the distant light + * + * \param lc a Fvector referece where we store the result, X=R, Y=G, Z=B + */ + void light_components(Fvector &lc); + + private: + guint32 color; + //light position coordinates in render setting + gdouble l_x; + gdouble l_y; + gdouble l_z; +}; + +class SpotLight { + public: + /** + * Constructor + * + * \param light the sp light object + * \param lighting_color the lighting_color used + * \param trans the transformation between absolute coordinate (those + * employed in the sp light object) and current coordinate (those + * employed in the rendering) + */ + SpotLight(SPFeSpotLight *light, guint32 lighting_color, const Matrix &trans); + ~SpotLight(); + + /** + * Computes the light vector of the distant light at point (x,y,z). + * x, y and z are given in the arena_item coordinate, they are used as + * is + * + * \param v a Fvector referece where we store the result + * \param x x coordinate of the current point + * \param y y coordinate of the current point + * \param z z coordinate of the current point + */ + void light_vector(Fvector &v, gdouble x, gdouble y, gdouble z); + + /** + * Computes the light components of the distant light at the current + * point. We only need the light vector to compute theses + * + * \param lc a Fvector referece where we store the result, X=R, Y=G, Z=B + * \param L the light vector of the current point + */ + void light_components(Fvector &lc, const Fvector &L); + + private: + guint32 color; + //light position coordinates in render setting + gdouble l_x; + gdouble l_y; + gdouble l_z; + gdouble cos_lca; //cos of the limiting cone angle + gdouble speExp; //specular exponent; + Fvector S; //unit vector from light position in the direction + //the spot point at +}; + + +} /* namespace NR */ + +#endif // __NR_LIGHT_H__ +/* + Local Variables: + mode:c++ + c-file-style:"stroustrup" + c-file-offsets:((innamespace . 0)(inline-open . 0)(case-label . +)) + indent-tabs-mode:nil + fill-column:99 + End: +*/ +// vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:encoding=utf-8:textwidth=99 : diff --git a/src/sp-fediffuselighting.cpp b/src/sp-fediffuselighting.cpp index d48c02c96..543c16e8b 100644 --- a/src/sp-fediffuselighting.cpp +++ b/src/sp-fediffuselighting.cpp @@ -7,8 +7,10 @@ /* * Authors: * hugo Rodrigues + * Jean-Rene Reinhard * * Copyright (C) 2006 Hugo Rodrigues + * 2007 authors * * Released under GNU GPL, read the file 'COPYING' for more information */ @@ -19,9 +21,11 @@ #include "attributes.h" #include "svg/svg.h" +#include "sp-object.h" +#include "svg/svg-color.h" #include "sp-fediffuselighting.h" #include "xml/repr.h" - +#include "display/nr-filter-diffuselighting.h" /* FeDiffuseLighting base class */ @@ -32,7 +36,18 @@ static void sp_feDiffuseLighting_build(SPObject *object, SPDocument *document, I static void sp_feDiffuseLighting_release(SPObject *object); static void sp_feDiffuseLighting_set(SPObject *object, unsigned int key, gchar const *value); static void sp_feDiffuseLighting_update(SPObject *object, SPCtx *ctx, guint flags); +//we assume that svg:feDiffuseLighting can have any number of children +//only the first one is considered as the light source of the filter +//TODO is that right? +//if not modify child_added and remove_child to raise errors +static void sp_feDiffuseLighting_child_added(SPObject *object, + Inkscape::XML::Node *child, + Inkscape::XML::Node *ref); +static void sp_feDiffuseLighting_remove_child(SPObject *object, Inkscape::XML::Node *child); +static void sp_feDiffuseLighting_order_changed(SPObject *object, Inkscape::XML::Node *child, Inkscape::XML::Node *old_ref, Inkscape::XML::Node *new_ref); static Inkscape::XML::Node *sp_feDiffuseLighting_write(SPObject *object, Inkscape::XML::Node *repr, guint flags); +static void sp_feDiffuseLighting_build_renderer(SPFilterPrimitive *primitive, NR::Filter *filter); +static void sp_feDiffuseLighting_children_modified(SPFeDiffuseLighting *sp_diffuselighting); static SPFilterPrimitiveClass *feDiffuseLighting_parent_class; @@ -61,7 +76,7 @@ static void sp_feDiffuseLighting_class_init(SPFeDiffuseLightingClass *klass) { SPObjectClass *sp_object_class = (SPObjectClass *)klass; - + SPFilterPrimitiveClass *sp_primitive_class = (SPFilterPrimitiveClass *)klass; feDiffuseLighting_parent_class = (SPFilterPrimitiveClass*)g_type_class_peek_parent(klass); sp_object_class->build = sp_feDiffuseLighting_build; @@ -69,11 +84,21 @@ sp_feDiffuseLighting_class_init(SPFeDiffuseLightingClass *klass) sp_object_class->write = sp_feDiffuseLighting_write; sp_object_class->set = sp_feDiffuseLighting_set; sp_object_class->update = sp_feDiffuseLighting_update; + sp_object_class->child_added = sp_feDiffuseLighting_child_added; + sp_object_class->remove_child = sp_feDiffuseLighting_remove_child; + sp_object_class->order_changed = sp_feDiffuseLighting_order_changed; + + sp_primitive_class->build_renderer = sp_feDiffuseLighting_build_renderer; } static void sp_feDiffuseLighting_init(SPFeDiffuseLighting *feDiffuseLighting) { + feDiffuseLighting->surfaceScale = 1; + feDiffuseLighting->diffuseConstant = 1; + feDiffuseLighting->lighting_color = 0xffffffff; + //TODO kernelUnit + feDiffuseLighting->renderer = NULL; } /** @@ -89,6 +114,11 @@ sp_feDiffuseLighting_build(SPObject *object, SPDocument *document, Inkscape::XML } /*LOAD ATTRIBUTES FROM REPR HERE*/ + sp_object_read_attr(object, "surfaceScale"); + sp_object_read_attr(object, "diffuseConstant"); + sp_object_read_attr(object, "kernelUnitLength"); + sp_object_read_attr(object, "lighting-color"); + } /** @@ -108,10 +138,40 @@ static void sp_feDiffuseLighting_set(SPObject *object, unsigned int key, gchar const *value) { SPFeDiffuseLighting *feDiffuseLighting = SP_FEDIFFUSELIGHTING(object); - (void)feDiffuseLighting; - + switch(key) { /*DEAL WITH SETTING ATTRIBUTES HERE*/ +//TODO test forbidden values + case SP_ATTR_SURFACESCALE: + feDiffuseLighting->surfaceScale = g_ascii_strtod(value, NULL); + if (feDiffuseLighting->renderer) { + feDiffuseLighting->renderer->surfaceScale = feDiffuseLighting->surfaceScale; + } + object->parent->requestModified(SP_OBJECT_MODIFIED_FLAG); + break; + case SP_ATTR_DIFFUSECONSTANT: + feDiffuseLighting->diffuseConstant = g_ascii_strtod(value, NULL); + if (feDiffuseLighting->renderer) { + feDiffuseLighting->renderer->diffuseConstant = feDiffuseLighting->diffuseConstant; + } + object->parent->requestModified(SP_OBJECT_MODIFIED_FLAG); + break; + case SP_ATTR_KERNELUNITLENGTH: + //TODO kernelUnit + //feDiffuseLighting->kernelUnitLength.set(value); + /*TODOif (feDiffuseLighting->renderer) { + feDiffuseLighting->renderer->surfaceScale = feDiffuseLighting->renderer; + } + */ + object->parent->requestModified(SP_OBJECT_MODIFIED_FLAG); + break; + case SP_PROP_LIGHTING_COLOR: + feDiffuseLighting->lighting_color = sp_svg_read_color(value, 0xffffffff); + if (feDiffuseLighting->renderer) { + feDiffuseLighting->renderer->lighting_color = feDiffuseLighting->lighting_color; + } + object->parent->requestModified(SP_OBJECT_MODIFIED_FLAG); + break; default: if (((SPObjectClass *) feDiffuseLighting_parent_class)->set) ((SPObjectClass *) feDiffuseLighting_parent_class)->set(object, key, value); @@ -126,11 +186,11 @@ sp_feDiffuseLighting_set(SPObject *object, unsigned int key, gchar const *value) static void sp_feDiffuseLighting_update(SPObject *object, SPCtx *ctx, guint flags) { - if (flags & (SP_OBJECT_MODIFIED_FLAG | SP_OBJECT_STYLE_MODIFIED_FLAG | - SP_OBJECT_VIEWPORT_MODIFIED_FLAG)) { - - /* do something to trigger redisplay, updates? */ - + if (flags & (SP_OBJECT_MODIFIED_FLAG)) { + sp_object_read_attr(object, "surfaceScale"); + sp_object_read_attr(object, "diffuseConstant"); + sp_object_read_attr(object, "kernelUnit"); + sp_object_read_attr(object, "lighting-color"); } if (((SPObjectClass *) feDiffuseLighting_parent_class)->update) { @@ -144,16 +204,24 @@ sp_feDiffuseLighting_update(SPObject *object, SPCtx *ctx, guint flags) static Inkscape::XML::Node * sp_feDiffuseLighting_write(SPObject *object, Inkscape::XML::Node *repr, guint flags) { + SPFeDiffuseLighting *fediffuselighting = SP_FEDIFFUSELIGHTING(object); + // Inkscape-only object, not copied during an "plain SVG" dump: if (flags & SP_OBJECT_WRITE_EXT) { if (repr) { // is this sane? - repr->mergeFrom(SP_OBJECT_REPR(object), "id"); + //repr->mergeFrom(SP_OBJECT_REPR(object), "id"); } else { repr = SP_OBJECT_REPR(object)->duplicate(NULL); // FIXME } } + sp_repr_set_css_double(repr, "surfaceScale", fediffuselighting->surfaceScale); + sp_repr_set_css_double(repr, "diffuseConstant", fediffuselighting->diffuseConstant); + /*TODO kernelUnits */ + gchar c[64]; + sp_svg_write_color(c, 64, fediffuselighting->lighting_color); + repr->setAttribute("lighting-color", c); if (((SPObjectClass *) feDiffuseLighting_parent_class)->write) { ((SPObjectClass *) feDiffuseLighting_parent_class)->write(object, repr, flags); } @@ -161,6 +229,103 @@ sp_feDiffuseLighting_write(SPObject *object, Inkscape::XML::Node *repr, guint fl return repr; } +/** + * Callback for child_added event. + */ +static void +sp_feDiffuseLighting_child_added(SPObject *object, Inkscape::XML::Node *child, Inkscape::XML::Node *ref) +{ + SPFeDiffuseLighting *f = SP_FEDIFFUSELIGHTING(object); + + if (((SPObjectClass *) feDiffuseLighting_parent_class)->child_added) + (* ((SPObjectClass *) feDiffuseLighting_parent_class)->child_added)(object, child, ref); + + sp_feDiffuseLighting_children_modified(f); + object->parent->requestModified(SP_OBJECT_MODIFIED_FLAG); +} + + +/** + * Callback for remove_child event. + */ +static void +sp_feDiffuseLighting_remove_child(SPObject *object, Inkscape::XML::Node *child) +{ + SPFeDiffuseLighting *f = SP_FEDIFFUSELIGHTING(object); + + if (((SPObjectClass *) feDiffuseLighting_parent_class)->remove_child) + (* ((SPObjectClass *) feDiffuseLighting_parent_class)->remove_child)(object, child); + + sp_feDiffuseLighting_children_modified(f); + object->parent->requestModified(SP_OBJECT_MODIFIED_FLAG); +} + +static void +sp_feDiffuseLighting_order_changed (SPObject *object, Inkscape::XML::Node *child, Inkscape::XML::Node *old_ref, Inkscape::XML::Node *new_ref) +{ + SPFeDiffuseLighting *f = SP_FEDIFFUSELIGHTING(object); + if (((SPObjectClass *) (feDiffuseLighting_parent_class))->order_changed) + (* ((SPObjectClass *) (feDiffuseLighting_parent_class))->order_changed) (object, child, old_ref, new_ref); + + sp_feDiffuseLighting_children_modified(f); + object->parent->requestModified(SP_OBJECT_MODIFIED_FLAG); +} + +static void sp_feDiffuseLighting_children_modified(SPFeDiffuseLighting *sp_diffuselighting) +{ + if (sp_diffuselighting->renderer) { + sp_diffuselighting->renderer->light_type = NR::NO_LIGHT; + if (SP_IS_FEDISTANTLIGHT(sp_diffuselighting->children)) { + sp_diffuselighting->renderer->light_type = NR::DISTANT_LIGHT; + sp_diffuselighting->renderer->light.distant = SP_FEDISTANTLIGHT(sp_diffuselighting->children); + } + if (SP_IS_FEPOINTLIGHT(sp_diffuselighting->children)) { + sp_diffuselighting->renderer->light_type = NR::POINT_LIGHT; + sp_diffuselighting->renderer->light.point = SP_FEPOINTLIGHT(sp_diffuselighting->children); + } + if (SP_IS_FESPOTLIGHT(sp_diffuselighting->children)) { + sp_diffuselighting->renderer->light_type = NR::SPOT_LIGHT; + sp_diffuselighting->renderer->light.spot = SP_FESPOTLIGHT(sp_diffuselighting->children); + } + } +} + +static void sp_feDiffuseLighting_build_renderer(SPFilterPrimitive *primitive, NR::Filter *filter) { + g_assert(primitive != NULL); + g_assert(filter != NULL); + + SPFeDiffuseLighting *sp_diffuselighting = SP_FEDIFFUSELIGHTING(primitive); + + int primitive_n = filter->add_primitive(NR::NR_FILTER_DIFFUSELIGHTING); + NR::FilterPrimitive *nr_primitive = filter->get_primitive(primitive_n); + NR::FilterDiffuseLighting *nr_diffuselighting = dynamic_cast(nr_primitive); + g_assert(nr_diffuselighting != NULL); + + sp_diffuselighting->renderer = nr_diffuselighting; + sp_filter_primitive_renderer_common(primitive, nr_primitive); + + nr_diffuselighting->diffuseConstant = sp_diffuselighting->diffuseConstant; + nr_diffuselighting->surfaceScale = sp_diffuselighting->surfaceScale; + nr_diffuselighting->lighting_color = sp_diffuselighting->lighting_color; + //We assume there is at most one child + nr_diffuselighting->light_type = NR::NO_LIGHT; + if (SP_IS_FEDISTANTLIGHT(primitive->children)) { + nr_diffuselighting->light_type = NR::DISTANT_LIGHT; + nr_diffuselighting->light.distant = SP_FEDISTANTLIGHT(primitive->children); + } + if (SP_IS_FEPOINTLIGHT(primitive->children)) { + nr_diffuselighting->light_type = NR::POINT_LIGHT; + nr_diffuselighting->light.point = SP_FEPOINTLIGHT(primitive->children); + } + if (SP_IS_FESPOTLIGHT(primitive->children)) { + nr_diffuselighting->light_type = NR::SPOT_LIGHT; + nr_diffuselighting->light.spot = SP_FESPOTLIGHT(primitive->children); + } + + //nr_offset->set_dx(sp_offset->dx); + //nr_offset->set_dy(sp_offset->dy); +} + /* Local Variables: diff --git a/src/sp-fediffuselighting.h b/src/sp-fediffuselighting.h index c937c2dd8..15988b306 100644 --- a/src/sp-fediffuselighting.h +++ b/src/sp-fediffuselighting.h @@ -7,8 +7,10 @@ /* * Authors: * Hugo Rodrigues + * Jean-Rene Reinhard * * Copyright (C) 2006 Hugo Rodrigues + * 2007 authors * * Released under GNU GPL, read the file 'COPYING' for more information */ @@ -16,12 +18,21 @@ #include "sp-filter.h" #include "sp-fediffuselighting-fns.h" +namespace NR { +class FilterDiffuseLighting; +} + /* FeDiffuseLighting base class */ class SPFeDiffuseLightingClass; struct SPFeDiffuseLighting : public SPFilterPrimitive { /** DIFFUSELIGHTING ATTRIBUTES HERE */ - + gfloat surfaceScale; + gfloat diffuseConstant; + NumberOptNumber kernelUnitLength; + guint32 lighting_color; + + NR::FilterDiffuseLighting *renderer; }; struct SPFeDiffuseLightingClass { diff --git a/src/sp-fedistantlight.cpp b/src/sp-fedistantlight.cpp new file mode 100644 index 000000000..2b9ef8ff5 --- /dev/null +++ b/src/sp-fedistantlight.cpp @@ -0,0 +1,209 @@ +#define __SP_FEDISTANTLIGHT_CPP__ + +/** \file + * SVG implementation. + */ +/* + * Authors: + * Hugo Rodrigues + * Niko Kiirala + * Jean-Rene Reinhard + * + * Copyright (C) 2006,2007 Authors + * + * Released under GNU GPL, read the file 'COPYING' for more information + */ + +#ifdef HAVE_CONFIG_H +# include "config.h" +#endif + +#include + +#include "attributes.h" +#include "document.h" +#include "sp-fedistantlight.h" +#include "sp-fediffuselighting-fns.h" +#include "sp-fespecularlighting-fns.h" +#include "xml/repr.h" + +#define SP_MACROS_SILENT +#include "macros.h" + +/* FeDistantLight class */ + +static void sp_fedistantlight_class_init(SPFeDistantLightClass *klass); +static void sp_fedistantlight_init(SPFeDistantLight *fedistantlight); + +static void sp_fedistantlight_build(SPObject *object, SPDocument *document, Inkscape::XML::Node *repr); +static void sp_fedistantlight_release(SPObject *object); +static void sp_fedistantlight_set(SPObject *object, unsigned int key, gchar const *value); +static void sp_fedistantlight_update(SPObject *object, SPCtx *ctx, guint flags); +static Inkscape::XML::Node *sp_fedistantlight_write(SPObject *object, Inkscape::XML::Node *repr, guint flags); + +static SPObjectClass *feDistantLight_parent_class; + +GType +sp_fedistantlight_get_type() +{ + static GType fedistantlight_type = 0; + + if (!fedistantlight_type) { + GTypeInfo fedistantlight_info = { + sizeof(SPFeDistantLightClass), + NULL, NULL, + (GClassInitFunc) sp_fedistantlight_class_init, + NULL, NULL, + sizeof(SPFeDistantLight), + 16, + (GInstanceInitFunc) sp_fedistantlight_init, + NULL, /* value_table */ + }; + fedistantlight_type = g_type_register_static(SP_TYPE_OBJECT, "SPFeDistantLight", &fedistantlight_info, (GTypeFlags)0); + } + return fedistantlight_type; +} + +static void +sp_fedistantlight_class_init(SPFeDistantLightClass *klass) +{ + + SPObjectClass *sp_object_class = (SPObjectClass *)klass; + + feDistantLight_parent_class = (SPObjectClass*)g_type_class_peek_parent(klass); + + sp_object_class->build = sp_fedistantlight_build; + sp_object_class->release = sp_fedistantlight_release; + sp_object_class->write = sp_fedistantlight_write; + sp_object_class->set = sp_fedistantlight_set; + sp_object_class->update = sp_fedistantlight_update; +} + +static void +sp_fedistantlight_init(SPFeDistantLight *fedistantlight) +{ + fedistantlight->azimuth = 0; + fedistantlight->elevation = 0; +} + +/** + * Reads the Inkscape::XML::Node, and initializes SPDistantLight variables. For this to get called, + * our name must be associated with a repr via "sp_object_type_register". Best done through + * sp-object-repr.cpp's repr_name_entries array. + */ +static void +sp_fedistantlight_build(SPObject *object, SPDocument *document, Inkscape::XML::Node *repr) +{ + if (((SPObjectClass *) feDistantLight_parent_class)->build) { + ((SPObjectClass *) feDistantLight_parent_class)->build(object, document, repr); + } + + //Read values of key attributes from XML nodes into object. + sp_object_read_attr(object, "azimuth"); + sp_object_read_attr(object, "elevation"); + +//is this necessary? + sp_document_add_resource(document, "fedistantlight", object); +} + +/** + * Drops any allocated memory. + */ +static void +sp_fedistantlight_release(SPObject *object) +{ + //SPFeDistantLight *fedistantlight = SP_FEDISTANTLIGHT(object); + + if (SP_OBJECT_DOCUMENT(object)) { + /* Unregister ourselves */ + sp_document_remove_resource(SP_OBJECT_DOCUMENT(object), "fedistantlight", SP_OBJECT(object)); + } + +//TODO: release resources here +} + +/** + * Sets a specific value in the SPFeDistantLight. + */ +static void +sp_fedistantlight_set(SPObject *object, unsigned int key, gchar const *value) +{ + SPFeDistantLight *fedistantlight = SP_FEDISTANTLIGHT(object); + + switch (key) { + case SP_ATTR_AZIMUTH: + fedistantlight->azimuth = g_ascii_strtod(value, NULL); + if (object->parent && + (SP_IS_FEDIFFUSELIGHTING(object->parent) || + SP_IS_FESPECULARLIGHTING(object->parent))) { + object->parent->parent->requestModified(SP_OBJECT_MODIFIED_FLAG); + } + break; + case SP_ATTR_ELEVATION: + fedistantlight->elevation = g_ascii_strtod(value, NULL); + if (object->parent && + (SP_IS_FEDIFFUSELIGHTING(object->parent) || + SP_IS_FESPECULARLIGHTING(object->parent))) { + object->parent->parent->requestModified(SP_OBJECT_MODIFIED_FLAG); + } + break; + default: + // See if any parents need this value. + if (((SPObjectClass *) feDistantLight_parent_class)->set) { + ((SPObjectClass *) feDistantLight_parent_class)->set(object, key, value); + } + break; + } +} + +/** + * * Receives update notifications. + * */ +static void +sp_fedistantlight_update(SPObject *object, SPCtx *ctx, guint flags) +{ + SPFeDistantLight *feDistantLight = SP_FEDISTANTLIGHT(object); + + if (flags & SP_OBJECT_MODIFIED_FLAG) { + /* do something to trigger redisplay, updates? */ + sp_object_read_attr(object, "azimuth"); + sp_object_read_attr(object, "elevation"); + } + + if (((SPObjectClass *) feDistantLight_parent_class)->update) { + ((SPObjectClass *) feDistantLight_parent_class)->update(object, ctx, flags); + } +} + +/** + * Writes its settings to an incoming repr object, if any. + */ +static Inkscape::XML::Node * +sp_fedistantlight_write(SPObject *object, Inkscape::XML::Node *repr, guint flags) +{ + SPFeDistantLight *fedistantlight = SP_FEDISTANTLIGHT(object); + + if (!repr) { + repr = SP_OBJECT_REPR(object)->duplicate(NULL); // FIXME + } + + sp_repr_set_css_double(repr, "azimuth", fedistantlight->azimuth); + sp_repr_set_css_double(repr, "elevation", fedistantlight->elevation); + + if (((SPObjectClass *) feDistantLight_parent_class)->write) { + ((SPObjectClass *) feDistantLight_parent_class)->write(object, repr, flags); + } + + return repr; +} + +/* + Local Variables: + mode:c++ + c-file-style:"stroustrup" + c-file-offsets:((innamespace . 0)(inline-open . 0)(case-label . +)) + indent-tabs-mode:nil + fill-column:99 + End: +*/ +// vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:encoding=utf-8:textwidth=99 : diff --git a/src/sp-fedistantlight.h b/src/sp-fedistantlight.h new file mode 100644 index 000000000..32a63f658 --- /dev/null +++ b/src/sp-fedistantlight.h @@ -0,0 +1,59 @@ +#ifndef SP_FEDISTANTLIGHT_H_SEEN +#define SP_FEDISTANTLIGHT_H_SEEN + +/** \file + * SVG implementation, see sp-filter.cpp. + */ +/* + * Authors: + * Hugo Rodrigues + * Niko Kiirala + * Jean-Rene Reinhard + * + * Copyright (C) 2006,2007 Authors + * + * Released under GNU GPL, read the file 'COPYING' for more information + */ + +#include "sp-object.h" + +#define SP_TYPE_FEDISTANTLIGHT (sp_fedistantlight_get_type()) +#define SP_FEDISTANTLIGHT(obj) (G_TYPE_CHECK_INSTANCE_CAST((obj), SP_TYPE_FEDISTANTLIGHT, SPFeDistantLight)) +#define SP_FEDISTANTLIGHT_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST((klass), SP_TYPE_FEDISTANTLIGHT, SPFeDistantLightClass)) +#define SP_IS_FEDISTANTLIGHT(obj) (G_TYPE_CHECK_INSTANCE_TYPE((obj), SP_TYPE_FEDISTANTLIGHT)) +#define SP_IS_FEDISTANTLIGHT_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE((klass), SP_TYPE_FEDISTANTLIGHT)) + +/* Distant light class */ + + +class SPFeDistantLight; +class SPFeDistantLightClass; + +struct SPFeDistantLight : public SPObject { + + /** azimuth attribute */ + gfloat azimuth; + /** elevation attribute */ + gfloat elevation; + + //other fields +}; + +struct SPFeDistantLightClass { + SPObjectClass parent_class; +}; + +GType +sp_fedistantlight_get_type(); +#endif /* !SP_FEDISTANTLIGHT_H_SEEN */ + +/* + Local Variables: + mode:c++ + c-file-style:"stroustrup" + c-file-offsets:((innamespace . 0)(inline-open . 0)(case-label . +)) + indent-tabs-mode:nil + fill-column:99 + End: +*/ +// vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:encoding=utf-8:textwidth=99 : diff --git a/src/sp-fepointlight.cpp b/src/sp-fepointlight.cpp new file mode 100644 index 000000000..9d912da14 --- /dev/null +++ b/src/sp-fepointlight.cpp @@ -0,0 +1,221 @@ +#define __SP_FEPOINTLIGHT_CPP__ + +/** \file + * SVG implementation. + */ +/* + * Authors: + * Hugo Rodrigues + * Niko Kiirala + * Jean-Rene Reinhard + * + * Copyright (C) 2006,2007 Authors + * + * Released under GNU GPL, read the file 'COPYING' for more information + */ + +#ifdef HAVE_CONFIG_H +# include "config.h" +#endif + +#include + +#include "attributes.h" +#include "document.h" +#include "sp-fepointlight.h" +#include "sp-fediffuselighting-fns.h" +#include "sp-fespecularlighting-fns.h" +#include "xml/repr.h" + +#define SP_MACROS_SILENT +#include "macros.h" + +/* FePointLight class */ + +static void sp_fepointlight_class_init(SPFePointLightClass *klass); +static void sp_fepointlight_init(SPFePointLight *fepointlight); + +static void sp_fepointlight_build(SPObject *object, SPDocument *document, Inkscape::XML::Node *repr); +static void sp_fepointlight_release(SPObject *object); +static void sp_fepointlight_set(SPObject *object, unsigned int key, gchar const *value); +static void sp_fepointlight_update(SPObject *object, SPCtx *ctx, guint flags); +static Inkscape::XML::Node *sp_fepointlight_write(SPObject *object, Inkscape::XML::Node *repr, guint flags); + +static SPObjectClass *fePointLight_parent_class; + +GType +sp_fepointlight_get_type() +{ + static GType fepointlight_type = 0; + + if (!fepointlight_type) { + GTypeInfo fepointlight_info = { + sizeof(SPFePointLightClass), + NULL, NULL, + (GClassInitFunc) sp_fepointlight_class_init, + NULL, NULL, + sizeof(SPFePointLight), + 16, + (GInstanceInitFunc) sp_fepointlight_init, + NULL, /* value_table */ + }; + fepointlight_type = g_type_register_static(SP_TYPE_OBJECT, "SPFePointLight", &fepointlight_info, (GTypeFlags)0); + } + return fepointlight_type; +} + +static void +sp_fepointlight_class_init(SPFePointLightClass *klass) +{ + + SPObjectClass *sp_object_class = (SPObjectClass *)klass; + + fePointLight_parent_class = (SPObjectClass*)g_type_class_peek_parent(klass); + + sp_object_class->build = sp_fepointlight_build; + sp_object_class->release = sp_fepointlight_release; + sp_object_class->write = sp_fepointlight_write; + sp_object_class->set = sp_fepointlight_set; + sp_object_class->update = sp_fepointlight_update; +} + +static void +sp_fepointlight_init(SPFePointLight *fepointlight) +{ + fepointlight->x = 0; + fepointlight->y = 0; + fepointlight->z = 0; +} + +/** + * Reads the Inkscape::XML::Node, and initializes SPPointLight variables. For this to get called, + * our name must be associated with a repr via "sp_object_type_register". Best done through + * sp-object-repr.cpp's repr_name_entries array. + */ +static void +sp_fepointlight_build(SPObject *object, SPDocument *document, Inkscape::XML::Node *repr) +{ + if (((SPObjectClass *) fePointLight_parent_class)->build) { + ((SPObjectClass *) fePointLight_parent_class)->build(object, document, repr); + } + + //Read values of key attributes from XML nodes into object. + sp_object_read_attr(object, "x"); + sp_object_read_attr(object, "y"); + sp_object_read_attr(object, "z"); + +//is this necessary? + sp_document_add_resource(document, "fepointlight", object); +} + +/** + * Drops any allocated memory. + */ +static void +sp_fepointlight_release(SPObject *object) +{ + //SPFePointLight *fepointlight = SP_FEPOINTLIGHT(object); + + if (SP_OBJECT_DOCUMENT(object)) { + /* Unregister ourselves */ + sp_document_remove_resource(SP_OBJECT_DOCUMENT(object), "fepointlight", SP_OBJECT(object)); + } + +//TODO: release resources here +} + +/** + * Sets a specific value in the SPFePointLight. + */ +static void +sp_fepointlight_set(SPObject *object, unsigned int key, gchar const *value) +{ + SPFePointLight *fepointlight = SP_FEPOINTLIGHT(object); + + switch (key) { + case SP_ATTR_X: + fepointlight->x = g_ascii_strtod(value, NULL); + if (object->parent && + (SP_IS_FEDIFFUSELIGHTING(object->parent) || + SP_IS_FESPECULARLIGHTING(object->parent))) { + object->parent->parent->requestModified(SP_OBJECT_MODIFIED_FLAG); + } + break; + case SP_ATTR_Y: + fepointlight->y = g_ascii_strtod(value, NULL); + if (object->parent && + (SP_IS_FEDIFFUSELIGHTING(object->parent) || + SP_IS_FESPECULARLIGHTING(object->parent))) { + object->parent->parent->requestModified(SP_OBJECT_MODIFIED_FLAG); + } + break; + case SP_ATTR_Z: + fepointlight->z = g_ascii_strtod(value, NULL); + if (object->parent && + (SP_IS_FEDIFFUSELIGHTING(object->parent) || + SP_IS_FESPECULARLIGHTING(object->parent))) { + object->parent->parent->requestModified(SP_OBJECT_MODIFIED_FLAG); + } + break; + default: + // See if any parents need this value. + if (((SPObjectClass *) fePointLight_parent_class)->set) { + ((SPObjectClass *) fePointLight_parent_class)->set(object, key, value); + } + break; + } +} + +/** + * * Receives update notifications. + * */ +static void +sp_fepointlight_update(SPObject *object, SPCtx *ctx, guint flags) +{ + SPFePointLight *fePointLight = SP_FEPOINTLIGHT(object); + + if (flags & SP_OBJECT_MODIFIED_FLAG) { + /* do something to trigger redisplay, updates? */ + sp_object_read_attr(object, "x"); + sp_object_read_attr(object, "y"); + sp_object_read_attr(object, "z"); + } + + if (((SPObjectClass *) fePointLight_parent_class)->update) { + ((SPObjectClass *) fePointLight_parent_class)->update(object, ctx, flags); + } +} + +/** + * Writes its settings to an incoming repr object, if any. + */ +static Inkscape::XML::Node * +sp_fepointlight_write(SPObject *object, Inkscape::XML::Node *repr, guint flags) +{ + SPFePointLight *fepointlight = SP_FEPOINTLIGHT(object); + + if (!repr) { + repr = SP_OBJECT_REPR(object)->duplicate(NULL); // FIXME + } + + sp_repr_set_css_double(repr, "x", fepointlight->x); + sp_repr_set_css_double(repr, "y", fepointlight->y); + sp_repr_set_css_double(repr, "z", fepointlight->z); + + if (((SPObjectClass *) fePointLight_parent_class)->write) { + ((SPObjectClass *) fePointLight_parent_class)->write(object, repr, flags); + } + + return repr; +} + +/* + Local Variables: + mode:c++ + c-file-style:"stroustrup" + c-file-offsets:((innamespace . 0)(inline-open . 0)(case-label . +)) + indent-tabs-mode:nil + fill-column:99 + End: +*/ +// vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:encoding=utf-8:textwidth=99 : diff --git a/src/sp-fepointlight.h b/src/sp-fepointlight.h new file mode 100644 index 000000000..88d399868 --- /dev/null +++ b/src/sp-fepointlight.h @@ -0,0 +1,61 @@ +#ifndef SP_FEPOINTLIGHT_H_SEEN +#define SP_FEPOINTLIGHT_H_SEEN + +/** \file + * SVG implementation, see sp-filter.cpp. + */ +/* + * Authors: + * Hugo Rodrigues + * Niko Kiirala + * Jean-Rene Reinhard + * + * Copyright (C) 2006,2007 Authors + * + * Released under GNU GPL, read the file 'COPYING' for more information + */ + +#include "sp-object.h" + +#define SP_TYPE_FEPOINTLIGHT (sp_fepointlight_get_type()) +#define SP_FEPOINTLIGHT(obj) (G_TYPE_CHECK_INSTANCE_CAST((obj), SP_TYPE_FEPOINTLIGHT, SPFePointLight)) +#define SP_FEPOINTLIGHT_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST((klass), SP_TYPE_FEPOINTLIGHT, SPFePointLightClass)) +#define SP_IS_FEPOINTLIGHT(obj) (G_TYPE_CHECK_INSTANCE_TYPE((obj), SP_TYPE_FEPOINTLIGHT)) +#define SP_IS_FEPOINTLIGHT_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE((klass), SP_TYPE_FEPOINTLIGHT)) + +/* Distant light class */ + + +class SPFePointLight; +class SPFePointLightClass; + +struct SPFePointLight : public SPObject { + + /** x coordinate of the light source */ + gfloat x; + /** y coordinate of the light source */ + gfloat y; + /** z coordinate of the light source */ + gfloat z; + + //other fields +}; + +struct SPFePointLightClass { + SPObjectClass parent_class; +}; + +GType +sp_fepointlight_get_type(); +#endif /* !SP_FEPOINTLIGHT_H_SEEN */ + +/* + Local Variables: + mode:c++ + c-file-style:"stroustrup" + c-file-offsets:((innamespace . 0)(inline-open . 0)(case-label . +)) + indent-tabs-mode:nil + fill-column:99 + End: +*/ +// vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:encoding=utf-8:textwidth=99 : diff --git a/src/sp-fespecularlighting.cpp b/src/sp-fespecularlighting.cpp index cc9837041..85f2aa862 100644 --- a/src/sp-fespecularlighting.cpp +++ b/src/sp-fespecularlighting.cpp @@ -7,8 +7,10 @@ /* * Authors: * hugo Rodrigues + * Jean-Rene Reinhard * * Copyright (C) 2006 Hugo Rodrigues + * 2007 authors * * Released under GNU GPL, read the file 'COPYING' for more information */ @@ -19,9 +21,11 @@ #include "attributes.h" #include "svg/svg.h" +#include "sp-object.h" +#include "svg/svg-color.h" #include "sp-fespecularlighting.h" #include "xml/repr.h" - +#include "display/nr-filter-specularlighting.h" /* FeSpecularLighting base class */ @@ -32,7 +36,18 @@ static void sp_feSpecularLighting_build(SPObject *object, SPDocument *document, static void sp_feSpecularLighting_release(SPObject *object); static void sp_feSpecularLighting_set(SPObject *object, unsigned int key, gchar const *value); static void sp_feSpecularLighting_update(SPObject *object, SPCtx *ctx, guint flags); +//we assume that svg:feSpecularLighting can have any number of children +//only the first one is considered as the light source of the filter +//TODO is that right? +//if not modify child_added and remove_child to raise errors +static void sp_feSpecularLighting_child_added(SPObject *object, + Inkscape::XML::Node *child, + Inkscape::XML::Node *ref); +static void sp_feSpecularLighting_remove_child(SPObject *object, Inkscape::XML::Node *child); +static void sp_feSpecularLighting_order_changed(SPObject *object, Inkscape::XML::Node *child, Inkscape::XML::Node *old_ref, Inkscape::XML::Node *new_ref); static Inkscape::XML::Node *sp_feSpecularLighting_write(SPObject *object, Inkscape::XML::Node *repr, guint flags); +static void sp_feSpecularLighting_build_renderer(SPFilterPrimitive *primitive, NR::Filter *filter); +static void sp_feSpecularLighting_children_modified(SPFeSpecularLighting *sp_specularlighting); static SPFilterPrimitiveClass *feSpecularLighting_parent_class; @@ -61,7 +76,7 @@ static void sp_feSpecularLighting_class_init(SPFeSpecularLightingClass *klass) { SPObjectClass *sp_object_class = (SPObjectClass *)klass; - + SPFilterPrimitiveClass *sp_primitive_class = (SPFilterPrimitiveClass *)klass; feSpecularLighting_parent_class = (SPFilterPrimitiveClass*)g_type_class_peek_parent(klass); sp_object_class->build = sp_feSpecularLighting_build; @@ -69,11 +84,22 @@ sp_feSpecularLighting_class_init(SPFeSpecularLightingClass *klass) sp_object_class->write = sp_feSpecularLighting_write; sp_object_class->set = sp_feSpecularLighting_set; sp_object_class->update = sp_feSpecularLighting_update; + sp_object_class->child_added = sp_feSpecularLighting_child_added; + sp_object_class->remove_child = sp_feSpecularLighting_remove_child; + sp_object_class->order_changed = sp_feSpecularLighting_order_changed; + + sp_primitive_class->build_renderer = sp_feSpecularLighting_build_renderer; } static void sp_feSpecularLighting_init(SPFeSpecularLighting *feSpecularLighting) { + feSpecularLighting->surfaceScale = 1; + feSpecularLighting->specularConstant = 1; + feSpecularLighting->specularExponent = 1; + feSpecularLighting->lighting_color = 0xffffffff; + //TODO kernelUnit + feSpecularLighting->renderer = NULL; } /** @@ -89,6 +115,12 @@ sp_feSpecularLighting_build(SPObject *object, SPDocument *document, Inkscape::XM } /*LOAD ATTRIBUTES FROM REPR HERE*/ + sp_object_read_attr(object, "surfaceScale"); + sp_object_read_attr(object, "specularConstant"); + sp_object_read_attr(object, "specularExponent"); + sp_object_read_attr(object, "kernelUnitLength"); + sp_object_read_attr(object, "lighting-color"); + } /** @@ -108,10 +140,47 @@ static void sp_feSpecularLighting_set(SPObject *object, unsigned int key, gchar const *value) { SPFeSpecularLighting *feSpecularLighting = SP_FESPECULARLIGHTING(object); - (void)feSpecularLighting; - + switch(key) { /*DEAL WITH SETTING ATTRIBUTES HERE*/ +//TODO test forbidden values + case SP_ATTR_SURFACESCALE: + feSpecularLighting->surfaceScale = g_ascii_strtod(value, NULL); + if (feSpecularLighting->renderer) { + feSpecularLighting->renderer->surfaceScale = feSpecularLighting->surfaceScale; + } + object->parent->requestModified(SP_OBJECT_MODIFIED_FLAG); + break; + case SP_ATTR_SPECULARCONSTANT: + feSpecularLighting->specularConstant = g_ascii_strtod(value, NULL); + if (feSpecularLighting->renderer) { + feSpecularLighting->renderer->specularConstant = feSpecularLighting->specularConstant; + } + object->parent->requestModified(SP_OBJECT_MODIFIED_FLAG); + break; + case SP_ATTR_SPECULAREXPONENT: + feSpecularLighting->specularExponent = g_ascii_strtod(value, NULL); + if (feSpecularLighting->renderer) { + feSpecularLighting->renderer->specularExponent = feSpecularLighting->specularExponent; + } + object->parent->requestModified(SP_OBJECT_MODIFIED_FLAG); + break; + case SP_ATTR_KERNELUNITLENGTH: + //TODO kernelUnit + //feSpecularLighting->kernelUnitLength.set(value); + /*TODOif (feSpecularLighting->renderer) { + feSpecularLighting->renderer->surfaceScale = feSpecularLighting->renderer; + } + */ + object->parent->requestModified(SP_OBJECT_MODIFIED_FLAG); + break; + case SP_PROP_LIGHTING_COLOR: + feSpecularLighting->lighting_color = sp_svg_read_color(value, 0xffffffff); + if (feSpecularLighting->renderer) { + feSpecularLighting->renderer->lighting_color = feSpecularLighting->lighting_color; + } + object->parent->requestModified(SP_OBJECT_MODIFIED_FLAG); + break; default: if (((SPObjectClass *) feSpecularLighting_parent_class)->set) ((SPObjectClass *) feSpecularLighting_parent_class)->set(object, key, value); @@ -126,11 +195,12 @@ sp_feSpecularLighting_set(SPObject *object, unsigned int key, gchar const *value static void sp_feSpecularLighting_update(SPObject *object, SPCtx *ctx, guint flags) { - if (flags & (SP_OBJECT_MODIFIED_FLAG | SP_OBJECT_STYLE_MODIFIED_FLAG | - SP_OBJECT_VIEWPORT_MODIFIED_FLAG)) { - - /* do something to trigger redisplay, updates? */ - + if (flags & (SP_OBJECT_MODIFIED_FLAG)) { + sp_object_read_attr(object, "surfaceScale"); + sp_object_read_attr(object, "specularConstant"); + sp_object_read_attr(object, "specularExponent"); + sp_object_read_attr(object, "kernelUnitLength"); + sp_object_read_attr(object, "lighting-color"); } if (((SPObjectClass *) feSpecularLighting_parent_class)->update) { @@ -144,16 +214,25 @@ sp_feSpecularLighting_update(SPObject *object, SPCtx *ctx, guint flags) static Inkscape::XML::Node * sp_feSpecularLighting_write(SPObject *object, Inkscape::XML::Node *repr, guint flags) { + SPFeSpecularLighting *fespecularlighting = SP_FESPECULARLIGHTING(object); + // Inkscape-only object, not copied during an "plain SVG" dump: if (flags & SP_OBJECT_WRITE_EXT) { if (repr) { // is this sane? - repr->mergeFrom(SP_OBJECT_REPR(object), "id"); + //repr->mergeFrom(SP_OBJECT_REPR(object), "id"); } else { repr = SP_OBJECT_REPR(object)->duplicate(NULL); // FIXME } } + sp_repr_set_css_double(repr, "surfaceScale", fespecularlighting->surfaceScale); + sp_repr_set_css_double(repr, "specularConstant", fespecularlighting->specularConstant); + sp_repr_set_css_double(repr, "specularExponent", fespecularlighting->specularExponent); + /*TODO kernelUnits */ + gchar c[64]; + sp_svg_write_color(c, 64, fespecularlighting->lighting_color); + repr->setAttribute("lighting-color", c); if (((SPObjectClass *) feSpecularLighting_parent_class)->write) { ((SPObjectClass *) feSpecularLighting_parent_class)->write(object, repr, flags); } @@ -161,6 +240,104 @@ sp_feSpecularLighting_write(SPObject *object, Inkscape::XML::Node *repr, guint f return repr; } +/** + * Callback for child_added event. + */ +static void +sp_feSpecularLighting_child_added(SPObject *object, Inkscape::XML::Node *child, Inkscape::XML::Node *ref) +{ + SPFeSpecularLighting *f = SP_FESPECULARLIGHTING(object); + + if (((SPObjectClass *) feSpecularLighting_parent_class)->child_added) + (* ((SPObjectClass *) feSpecularLighting_parent_class)->child_added)(object, child, ref); + + sp_feSpecularLighting_children_modified(f); + object->parent->requestModified(SP_OBJECT_MODIFIED_FLAG); +} + + +/** + * Callback for remove_child event. + */ +static void +sp_feSpecularLighting_remove_child(SPObject *object, Inkscape::XML::Node *child) +{ + SPFeSpecularLighting *f = SP_FESPECULARLIGHTING(object); + + if (((SPObjectClass *) feSpecularLighting_parent_class)->remove_child) + (* ((SPObjectClass *) feSpecularLighting_parent_class)->remove_child)(object, child); + + sp_feSpecularLighting_children_modified(f); + object->parent->requestModified(SP_OBJECT_MODIFIED_FLAG); +} + +static void +sp_feSpecularLighting_order_changed (SPObject *object, Inkscape::XML::Node *child, Inkscape::XML::Node *old_ref, Inkscape::XML::Node *new_ref) +{ + SPFeSpecularLighting *f = SP_FESPECULARLIGHTING(object); + if (((SPObjectClass *) (feSpecularLighting_parent_class))->order_changed) + (* ((SPObjectClass *) (feSpecularLighting_parent_class))->order_changed) (object, child, old_ref, new_ref); + + sp_feSpecularLighting_children_modified(f); + object->parent->requestModified(SP_OBJECT_MODIFIED_FLAG); +} + +static void sp_feSpecularLighting_children_modified(SPFeSpecularLighting *sp_specularlighting) +{ + if (sp_specularlighting->renderer) { + sp_specularlighting->renderer->light_type = NR::NO_LIGHT; + if (SP_IS_FEDISTANTLIGHT(sp_specularlighting->children)) { + sp_specularlighting->renderer->light_type = NR::DISTANT_LIGHT; + sp_specularlighting->renderer->light.distant = SP_FEDISTANTLIGHT(sp_specularlighting->children); + } + if (SP_IS_FEPOINTLIGHT(sp_specularlighting->children)) { + sp_specularlighting->renderer->light_type = NR::POINT_LIGHT; + sp_specularlighting->renderer->light.point = SP_FEPOINTLIGHT(sp_specularlighting->children); + } + if (SP_IS_FESPOTLIGHT(sp_specularlighting->children)) { + sp_specularlighting->renderer->light_type = NR::SPOT_LIGHT; + sp_specularlighting->renderer->light.spot = SP_FESPOTLIGHT(sp_specularlighting->children); + } + } +} + +static void sp_feSpecularLighting_build_renderer(SPFilterPrimitive *primitive, NR::Filter *filter) { + g_assert(primitive != NULL); + g_assert(filter != NULL); + + SPFeSpecularLighting *sp_specularlighting = SP_FESPECULARLIGHTING(primitive); + + int primitive_n = filter->add_primitive(NR::NR_FILTER_SPECULARLIGHTING); + NR::FilterPrimitive *nr_primitive = filter->get_primitive(primitive_n); + NR::FilterSpecularLighting *nr_specularlighting = dynamic_cast(nr_primitive); + g_assert(nr_specularlighting != NULL); + + sp_specularlighting->renderer = nr_specularlighting; + sp_filter_primitive_renderer_common(primitive, nr_primitive); + + nr_specularlighting->specularConstant = sp_specularlighting->specularConstant; + nr_specularlighting->specularExponent = sp_specularlighting->specularExponent; + nr_specularlighting->surfaceScale = sp_specularlighting->surfaceScale; + nr_specularlighting->lighting_color = sp_specularlighting->lighting_color; + //We assume there is at most one child + nr_specularlighting->light_type = NR::NO_LIGHT; + if (SP_IS_FEDISTANTLIGHT(primitive->children)) { + nr_specularlighting->light_type = NR::DISTANT_LIGHT; + nr_specularlighting->light.distant = SP_FEDISTANTLIGHT(primitive->children); + } + if (SP_IS_FEPOINTLIGHT(primitive->children)) { + nr_specularlighting->light_type = NR::POINT_LIGHT; + nr_specularlighting->light.point = SP_FEPOINTLIGHT(primitive->children); + } + if (SP_IS_FESPOTLIGHT(primitive->children)) { + nr_specularlighting->light_type = NR::SPOT_LIGHT; + nr_specularlighting->light.spot = SP_FESPOTLIGHT(primitive->children); + } + + //nr_offset->set_dx(sp_offset->dx); + //nr_offset->set_dy(sp_offset->dy); +} + /* Local Variables: diff --git a/src/sp-fespecularlighting.h b/src/sp-fespecularlighting.h index 3c0887f15..9aa38b53e 100644 --- a/src/sp-fespecularlighting.h +++ b/src/sp-fespecularlighting.h @@ -7,8 +7,10 @@ /* * Authors: * Hugo Rodrigues + * Jean-Rene Reinhard * * Copyright (C) 2006 Hugo Rodrigues + * 2007 authors * * Released under GNU GPL, read the file 'COPYING' for more information */ @@ -16,12 +18,22 @@ #include "sp-filter.h" #include "sp-fespecularlighting-fns.h" +namespace NR { +class FilterSpecularLighting; +} + /* FeSpecularLighting base class */ class SPFeSpecularLightingClass; struct SPFeSpecularLighting : public SPFilterPrimitive { /** SPECULARLIGHTING ATTRIBUTES HERE */ - + gfloat surfaceScale; + gfloat specularConstant; + gfloat specularExponent; + NumberOptNumber kernelUnitLength; + guint32 lighting_color; + + NR::FilterSpecularLighting *renderer; }; struct SPFeSpecularLightingClass { diff --git a/src/sp-fespotlight.cpp b/src/sp-fespotlight.cpp new file mode 100644 index 000000000..d5ae5306c --- /dev/null +++ b/src/sp-fespotlight.cpp @@ -0,0 +1,281 @@ +#define __SP_FESPOTLIGHT_CPP__ + +/** \file + * SVG implementation. + */ +/* + * Authors: + * Hugo Rodrigues + * Niko Kiirala + * Jean-Rene Reinhard + * + * Copyright (C) 2006,2007 Authors + * + * Released under GNU GPL, read the file 'COPYING' for more information + */ + +#ifdef HAVE_CONFIG_H +# include "config.h" +#endif + +#include + +#include "attributes.h" +#include "document.h" +#include "sp-fespotlight.h" +#include "sp-fediffuselighting-fns.h" +#include "sp-fespecularlighting-fns.h" +#include "xml/repr.h" + +#define SP_MACROS_SILENT +#include "macros.h" + +/* FeSpotLight class */ + +static void sp_fespotlight_class_init(SPFeSpotLightClass *klass); +static void sp_fespotlight_init(SPFeSpotLight *fespotlight); + +static void sp_fespotlight_build(SPObject *object, SPDocument *document, Inkscape::XML::Node *repr); +static void sp_fespotlight_release(SPObject *object); +static void sp_fespotlight_set(SPObject *object, unsigned int key, gchar const *value); +static void sp_fespotlight_update(SPObject *object, SPCtx *ctx, guint flags); +static Inkscape::XML::Node *sp_fespotlight_write(SPObject *object, Inkscape::XML::Node *repr, guint flags); + +static SPObjectClass *feSpotLight_parent_class; + +GType +sp_fespotlight_get_type() +{ + static GType fespotlight_type = 0; + + if (!fespotlight_type) { + GTypeInfo fespotlight_info = { + sizeof(SPFeSpotLightClass), + NULL, NULL, + (GClassInitFunc) sp_fespotlight_class_init, + NULL, NULL, + sizeof(SPFeSpotLight), + 16, + (GInstanceInitFunc) sp_fespotlight_init, + NULL, /* value_table */ + }; + fespotlight_type = g_type_register_static(SP_TYPE_OBJECT, "SPFeSpotLight", &fespotlight_info, (GTypeFlags)0); + } + return fespotlight_type; +} + +static void +sp_fespotlight_class_init(SPFeSpotLightClass *klass) +{ + + SPObjectClass *sp_object_class = (SPObjectClass *)klass; + + feSpotLight_parent_class = (SPObjectClass*)g_type_class_peek_parent(klass); + + sp_object_class->build = sp_fespotlight_build; + sp_object_class->release = sp_fespotlight_release; + sp_object_class->write = sp_fespotlight_write; + sp_object_class->set = sp_fespotlight_set; + sp_object_class->update = sp_fespotlight_update; +} + +static void +sp_fespotlight_init(SPFeSpotLight *fespotlight) +{ + fespotlight->x = 0; + fespotlight->y = 0; + fespotlight->z = 0; + fespotlight->pointsAtX = 0; + fespotlight->pointsAtY = 0; + fespotlight->pointsAtZ = 0; + fespotlight->specularExponent = 1; + fespotlight->limitingConeAngle = 90; +} + +/** + * Reads the Inkscape::XML::Node, and initializes SPPointLight variables. For this to get called, + * our name must be associated with a repr via "sp_object_type_register". Best done through + * sp-object-repr.cpp's repr_name_entries array. + */ +static void +sp_fespotlight_build(SPObject *object, SPDocument *document, Inkscape::XML::Node *repr) +{ + if (((SPObjectClass *) feSpotLight_parent_class)->build) { + ((SPObjectClass *) feSpotLight_parent_class)->build(object, document, repr); + } + + //Read values of key attributes from XML nodes into object. + sp_object_read_attr(object, "x"); + sp_object_read_attr(object, "y"); + sp_object_read_attr(object, "z"); + sp_object_read_attr(object, "pointsAtX"); + sp_object_read_attr(object, "pointsAtY"); + sp_object_read_attr(object, "pointsAtZ"); + sp_object_read_attr(object, "specularExponent"); + sp_object_read_attr(object, "limitingConeAngle"); + +//is this necessary? + sp_document_add_resource(document, "fespotlight", object); +} + +/** + * Drops any allocated memory. + */ +static void +sp_fespotlight_release(SPObject *object) +{ + //SPFeSpotLight *fespotlight = SP_FESPOTLIGHT(object); + + if (SP_OBJECT_DOCUMENT(object)) { + /* Unregister ourselves */ + sp_document_remove_resource(SP_OBJECT_DOCUMENT(object), "fespotlight", SP_OBJECT(object)); + } + +//TODO: release resources here +} + +/** + * Sets a specific value in the SPFeSpotLight. + */ +static void +sp_fespotlight_set(SPObject *object, unsigned int key, gchar const *value) +{ + SPFeSpotLight *fespotlight = SP_FESPOTLIGHT(object); + + switch (key) { + case SP_ATTR_X: + fespotlight->x = g_ascii_strtod(value, NULL); + if (object->parent && + (SP_IS_FEDIFFUSELIGHTING(object->parent) || + SP_IS_FESPECULARLIGHTING(object->parent))) { + object->parent->parent->requestModified(SP_OBJECT_MODIFIED_FLAG); + } + break; + case SP_ATTR_Y: + fespotlight->y = g_ascii_strtod(value, NULL); + if (object->parent && + (SP_IS_FEDIFFUSELIGHTING(object->parent) || + SP_IS_FESPECULARLIGHTING(object->parent))) { + object->parent->parent->requestModified(SP_OBJECT_MODIFIED_FLAG); + } + break; + case SP_ATTR_Z: + fespotlight->z = g_ascii_strtod(value, NULL); + if (object->parent && + (SP_IS_FEDIFFUSELIGHTING(object->parent) || + SP_IS_FESPECULARLIGHTING(object->parent))) { + object->parent->parent->requestModified(SP_OBJECT_MODIFIED_FLAG); + } + break; + case SP_ATTR_POINTSATX: + fespotlight->pointsAtX = g_ascii_strtod(value, NULL); + if (object->parent && + (SP_IS_FEDIFFUSELIGHTING(object->parent) || + SP_IS_FESPECULARLIGHTING(object->parent))) { + object->parent->parent->requestModified(SP_OBJECT_MODIFIED_FLAG); + } + break; + case SP_ATTR_POINTSATY: + fespotlight->pointsAtY = g_ascii_strtod(value, NULL); + if (object->parent && + (SP_IS_FEDIFFUSELIGHTING(object->parent) || + SP_IS_FESPECULARLIGHTING(object->parent))) { + object->parent->parent->requestModified(SP_OBJECT_MODIFIED_FLAG); + } + break; + case SP_ATTR_POINTSATZ: + fespotlight->pointsAtZ = g_ascii_strtod(value, NULL); + if (object->parent && + (SP_IS_FEDIFFUSELIGHTING(object->parent) || + SP_IS_FESPECULARLIGHTING(object->parent))) { + object->parent->parent->requestModified(SP_OBJECT_MODIFIED_FLAG); + } + break; + case SP_ATTR_SPECULAREXPONENT: + fespotlight->specularExponent = g_ascii_strtod(value, NULL); + if (object->parent && + (SP_IS_FEDIFFUSELIGHTING(object->parent) || + SP_IS_FESPECULARLIGHTING(object->parent))) { + object->parent->parent->requestModified(SP_OBJECT_MODIFIED_FLAG); + } + break; + case SP_ATTR_LIMITINGCONEANGLE: + fespotlight->limitingConeAngle = g_ascii_strtod(value, NULL); + if (object->parent && + (SP_IS_FEDIFFUSELIGHTING(object->parent) || + SP_IS_FESPECULARLIGHTING(object->parent))) { + object->parent->parent->requestModified(SP_OBJECT_MODIFIED_FLAG); + } + break; + default: + // See if any parents need this value. + if (((SPObjectClass *) feSpotLight_parent_class)->set) { + ((SPObjectClass *) feSpotLight_parent_class)->set(object, key, value); + } + break; + } +} + +/** + * * Receives update notifications. + * */ +static void +sp_fespotlight_update(SPObject *object, SPCtx *ctx, guint flags) +{ + SPFeSpotLight *feSpotLight = SP_FESPOTLIGHT(object); + + if (flags & SP_OBJECT_MODIFIED_FLAG) { + /* do something to trigger redisplay, updates? */ + sp_object_read_attr(object, "x"); + sp_object_read_attr(object, "y"); + sp_object_read_attr(object, "z"); + sp_object_read_attr(object, "pointsAtX"); + sp_object_read_attr(object, "pointsAtY"); + sp_object_read_attr(object, "pointsAtZ"); + sp_object_read_attr(object, "specularExponent"); + sp_object_read_attr(object, "limitingConeAngle"); + } + + if (((SPObjectClass *) feSpotLight_parent_class)->update) { + ((SPObjectClass *) feSpotLight_parent_class)->update(object, ctx, flags); + } +} + +/** + * Writes its settings to an incoming repr object, if any. + */ +static Inkscape::XML::Node * +sp_fespotlight_write(SPObject *object, Inkscape::XML::Node *repr, guint flags) +{ + SPFeSpotLight *fespotlight = SP_FESPOTLIGHT(object); + + if (!repr) { + repr = SP_OBJECT_REPR(object)->duplicate(NULL); // FIXME + } + + sp_repr_set_css_double(repr, "x", fespotlight->x); + sp_repr_set_css_double(repr, "y", fespotlight->y); + sp_repr_set_css_double(repr, "z", fespotlight->z); + sp_repr_set_css_double(repr, "pointsAtX", fespotlight->pointsAtX); + sp_repr_set_css_double(repr, "pointsAtY", fespotlight->pointsAtY); + sp_repr_set_css_double(repr, "pointsAtZ", fespotlight->pointsAtZ); + sp_repr_set_css_double(repr, "specularExponent", fespotlight->specularExponent); + sp_repr_set_css_double(repr, "limitingConeAngle", fespotlight->limitingConeAngle); + + if (((SPObjectClass *) feSpotLight_parent_class)->write) { + ((SPObjectClass *) feSpotLight_parent_class)->write(object, repr, flags); + } + + return repr; +} + +/* + Local Variables: + mode:c++ + c-file-style:"stroustrup" + c-file-offsets:((innamespace . 0)(inline-open . 0)(case-label . +)) + indent-tabs-mode:nil + fill-column:99 + End: +*/ +// vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:encoding=utf-8:textwidth=99 : diff --git a/src/sp-fespotlight.h b/src/sp-fespotlight.h new file mode 100644 index 000000000..d0b04250f --- /dev/null +++ b/src/sp-fespotlight.h @@ -0,0 +1,70 @@ +#ifndef SP_FESPOTLIGHT_H_SEEN +#define SP_FESPOTLIGHT_H_SEEN + +/** \file + * SVG implementation, see sp-filter.cpp. + */ +/* + * Authors: + * Hugo Rodrigues + * Niko Kiirala + * Jean-Rene Reinhard + * + * Copyright (C) 2006,2007 Authors + * + * Released under GNU GPL, read the file 'COPYING' for more information + */ + +#include "sp-object.h" + +#define SP_TYPE_FESPOTLIGHT (sp_fespotlight_get_type()) +#define SP_FESPOTLIGHT(obj) (G_TYPE_CHECK_INSTANCE_CAST((obj), SP_TYPE_FESPOTLIGHT, SPFeSpotLight)) +#define SP_FESPOTLIGHT_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST((klass), SP_TYPE_FESPOTLIGHT, SPFeSpotLightClass)) +#define SP_IS_FESPOTLIGHT(obj) (G_TYPE_CHECK_INSTANCE_TYPE((obj), SP_TYPE_FESPOTLIGHT)) +#define SP_IS_FESPOTLIGHT_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE((klass), SP_TYPE_FESPOTLIGHT)) + +/* Distant light class */ + + +class SPFeSpotLight; +class SPFeSpotLightClass; + +struct SPFeSpotLight : public SPObject { + + /** x coordinate of the light source */ + gfloat x; + /** y coordinate of the light source */ + gfloat y; + /** z coordinate of the light source */ + gfloat z; + /** x coordinate of the point the source is pointing at */ + gfloat pointsAtX; + /** y coordinate of the point the source is pointing at */ + gfloat pointsAtY; + /** z coordinate of the point the source is pointing at */ + gfloat pointsAtZ; + /** specular exponent (focus of the light) */ + gfloat specularExponent; + /** limiting cone angle */ + gfloat limitingConeAngle; + //other fields +}; + +struct SPFeSpotLightClass { + SPObjectClass parent_class; +}; + +GType +sp_fespotlight_get_type(); +#endif /* !SP_FESPOTLIGHT_H_SEEN */ + +/* + Local Variables: + mode:c++ + c-file-style:"stroustrup" + c-file-offsets:((innamespace . 0)(inline-open . 0)(case-label . +)) + indent-tabs-mode:nil + fill-column:99 + End: +*/ +// vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:encoding=utf-8:textwidth=99 : diff --git a/src/sp-object-repr.cpp b/src/sp-object-repr.cpp index a4b47ca22..4e417e294 100644 --- a/src/sp-object-repr.cpp +++ b/src/sp-object-repr.cpp @@ -53,13 +53,16 @@ #include "sp-fecomposite.h" #include "sp-feconvolvematrix.h" #include "sp-fediffuselighting.h" +#include "sp-fedistantlight.h" #include "sp-fedisplacementmap.h" #include "sp-feflood.h" #include "sp-feimage.h" #include "sp-femerge.h" #include "sp-femorphology.h" #include "sp-feoffset.h" +#include "sp-fepointlight.h" #include "sp-fespecularlighting.h" +#include "sp-fespotlight.h" #include "sp-fetile.h" #include "sp-feturbulence.h" @@ -137,6 +140,7 @@ populate_dtables() { "svg:feComposite", SP_TYPE_FECOMPOSITE }, { "svg:feConvolveMatrix", SP_TYPE_FECONVOLVEMATRIX }, { "svg:feDiffuseLighting", SP_TYPE_FEDIFFUSELIGHTING }, + { "svg:feDistantLight", SP_TYPE_FEDISTANTLIGHT }, { "svg:feDisplacementMap", SP_TYPE_FEDISPLACEMENTMAP }, { "svg:feFlood", SP_TYPE_FEFLOOD }, { "svg:feGaussianBlur", SP_TYPE_GAUSSIANBLUR }, @@ -144,7 +148,9 @@ populate_dtables() { "svg:feMerge", SP_TYPE_FEMERGE }, { "svg:feMorphology", SP_TYPE_FEMORPHOLOGY }, { "svg:feOffset", SP_TYPE_FEOFFSET }, + { "svg:fePointLight", SP_TYPE_FEPOINTLIGHT }, { "svg:feSpecularLighting", SP_TYPE_FESPECULARLIGHTING }, + { "svg:feSpotLight", SP_TYPE_FESPOTLIGHT }, { "svg:feTile", SP_TYPE_FETILE }, { "svg:feTurbulence", SP_TYPE_FETURBULENCE }, { "svg:image", SP_TYPE_IMAGE }, -- 2.30.2