1 #define __NR_ARENA_C__
3 /*
4 * RGBA display list system for inkscape
5 *
6 * Author:
7 * Lauris Kaplinski <lauris@kaplinski.com>
8 *
9 * Copyright (C) 2001-2002 Lauris Kaplinski
10 * Copyright (C) 2001 Ximian, Inc.
11 *
12 * Released under GNU GPL, read the file 'COPYING' for more information
13 */
15 #include "nr-arena-item.h"
16 #include "nr-arena.h"
17 #include "nr-filter-gaussian.h"
18 #include "nr-filter-types.h"
19 #include <libnr/nr-blit.h>
20 #include "preferences.h"
21 #include "color.h"
23 static void nr_arena_class_init (NRArenaClass *klass);
24 static void nr_arena_init (NRArena *arena);
25 static void nr_arena_finalize (NRObject *object);
27 static NRActiveObjectClass *parent_class;
29 NRType
30 nr_arena_get_type (void)
31 {
32 static NRType type = 0;
33 if (!type) {
34 type = nr_object_register_type (NR_TYPE_ACTIVE_OBJECT,
35 "NRArena",
36 sizeof (NRArenaClass),
37 sizeof (NRArena),
38 (void (*) (NRObjectClass *)) nr_arena_class_init,
39 (void (*) (NRObject *)) nr_arena_init);
40 }
41 return type;
42 }
44 static void
45 nr_arena_class_init (NRArenaClass *klass)
46 {
47 NRObjectClass *object_class = (NRObjectClass *) klass;
49 parent_class = (NRActiveObjectClass *) (((NRObjectClass *) klass)->parent);
51 object_class->finalize = nr_arena_finalize;
52 object_class->cpp_ctor = NRObject::invoke_ctor<NRArena>;
53 }
55 static void
56 nr_arena_init (NRArena *arena)
57 {
58 arena->delta = 0; // to be set by desktop from prefs
59 arena->renderoffscreen = false; // use render values from preferences otherwise render exact
60 arena->rendermode = Inkscape::RENDERMODE_NORMAL; // default is normal render
61 arena->blurquality = BLUR_QUALITY_NORMAL;
62 arena->filterquality = Inkscape::Filters::FILTER_QUALITY_NORMAL;
63 arena->outlinecolor = 0xff; // black; to be set by desktop from bg color
64 arena->canvasarena = NULL;
65 }
67 static void
68 nr_arena_finalize (NRObject *object)
69 {
70 ((NRObjectClass *) (parent_class))->finalize (object);
71 }
73 void
74 nr_arena_request_update (NRArena *arena, NRArenaItem *item)
75 {
76 NRActiveObject *aobject = (NRActiveObject *) arena;
78 nr_return_if_fail (arena != NULL);
79 nr_return_if_fail (NR_IS_ARENA (arena));
80 nr_return_if_fail (item != NULL);
81 nr_return_if_fail (NR_IS_ARENA_ITEM (item));
82 // setup render parameter
83 if (arena->renderoffscreen == false) {
84 Inkscape::Preferences *prefs = Inkscape::Preferences::get();
85 arena->blurquality = prefs->getInt("/options/blurquality/value", 0);
86 arena->filterquality = prefs->getInt("/options/filterquality/value", 0);
87 } else {
88 arena->blurquality = BLUR_QUALITY_BEST;
89 arena->filterquality = Inkscape::Filters::FILTER_QUALITY_BEST;
90 arena->rendermode = Inkscape::RENDERMODE_NORMAL;
91 }
93 if (aobject->callbacks) {
94 for (unsigned int i = 0; i < aobject->callbacks->length; i++) {
95 NRObjectListener *listener = aobject->callbacks->listeners + i;
96 NRArenaEventVector *avector = (NRArenaEventVector *) listener->vector;
97 if ((listener->size >= sizeof (NRArenaEventVector)) && avector->request_update) {
98 avector->request_update (arena, item, listener->data);
99 }
100 }
101 }
102 }
104 void
105 nr_arena_request_render_rect (NRArena *arena, NRRectL *area)
106 {
107 NRActiveObject *aobject = (NRActiveObject *) arena;
109 nr_return_if_fail (arena != NULL);
110 nr_return_if_fail (NR_IS_ARENA (arena));
111 nr_return_if_fail (area != NULL);
113 // setup render parameter
114 if (arena->renderoffscreen == false) {
115 Inkscape::Preferences *prefs = Inkscape::Preferences::get();
116 arena->blurquality = prefs->getInt("/options/blurquality/value", 0);
117 arena->filterquality = prefs->getInt("/options/filterquality/value", 0);
118 } else {
119 arena->blurquality = BLUR_QUALITY_BEST;
120 arena->filterquality = Inkscape::Filters::FILTER_QUALITY_BEST;
121 arena->rendermode = Inkscape::RENDERMODE_NORMAL;
122 }
123 if (aobject->callbacks && area && !nr_rect_l_test_empty_ptr(area)) {
124 for (unsigned int i = 0; i < aobject->callbacks->length; i++) {
125 NRObjectListener *listener = aobject->callbacks->listeners + i;
126 NRArenaEventVector *avector = (NRArenaEventVector *) listener->vector;
127 if ((listener->size >= sizeof (NRArenaEventVector)) && avector->request_render) {
128 avector->request_render (arena, area, listener->data);
129 }
130 }
131 }
132 }
134 void
135 nr_arena_render_paintserver_fill (NRPixBlock *pb, NRRectL *area, SPPainter *painter, float opacity, NRPixBlock *mask)
136 {
137 NRPixBlock cb, cb_opa;
138 nr_pixblock_setup_fast (&cb, NR_PIXBLOCK_MODE_R8G8B8A8N, area->x0, area->y0, area->x1, area->y1, TRUE);
139 nr_pixblock_setup_fast (&cb_opa, NR_PIXBLOCK_MODE_R8G8B8A8N, area->x0, area->y0, area->x1, area->y1, TRUE);
141 // if memory allocation failed, abort
142 if ((cb.size != NR_PIXBLOCK_SIZE_TINY && cb.data.px == NULL) || (cb_opa.size != NR_PIXBLOCK_SIZE_TINY && cb_opa.data.px == NULL)) {
143 return;
144 }
146 cb.visible_area = pb->visible_area;
147 cb_opa.visible_area = pb->visible_area;
149 /* Need separate gradient buffer (lauris)*/
150 // do the filling
151 painter->fill (painter, &cb);
152 cb.empty = FALSE;
154 // do the fill-opacity and mask composite
155 if (opacity < 1.0) {
156 nr_blit_pixblock_pixblock_alpha (&cb_opa, &cb, (int) floor (255 * opacity));
157 cb_opa.empty = FALSE;
158 nr_blit_pixblock_pixblock_mask (pb, &cb_opa, mask);
159 } else {
160 nr_blit_pixblock_pixblock_mask (pb, &cb, mask);
161 }
163 pb->empty = FALSE;
165 nr_pixblock_release (&cb);
166 nr_pixblock_release (&cb_opa);
167 }
169 /**
170 set arena to offscreen mode
171 rendering will be exact
172 @param arena NRArena object
173 */
174 void
175 nr_arena_set_renderoffscreen (NRArena *arena)
176 {
177 nr_return_if_fail (arena != NULL);
178 nr_return_if_fail (NR_IS_ARENA (arena));
180 // the real assignment to the quality indicators is in the update function
181 arena->renderoffscreen = true;
183 }
185 #define FLOAT_TO_UINT8(f) (int(f*255))
186 #define RGBA_R(v) ((v) >> 24)
187 #define RGBA_G(v) (((v) >> 16) & 0xff)
188 #define RGBA_B(v) (((v) >> 8) & 0xff)
189 #define RGBA_A(v) ((v) & 0xff)
191 void nr_arena_separate_color_plates(guint32* rgba){
192 Inkscape::Preferences *prefs = Inkscape::Preferences::get();
193 bool render_cyan = prefs->getBool("/options/printcolorspreview/cyan", true);
194 bool render_magenta = prefs->getBool("/options/printcolorspreview/magenta", true);
195 bool render_yellow = prefs->getBool("/options/printcolorspreview/yellow", true);
196 bool render_black = prefs->getBool("/options/printcolorspreview/black", true);
198 float rgb_v[3];
199 float cmyk_v[4];
200 sp_color_rgb_to_cmyk_floatv (cmyk_v, RGBA_R(*rgba)/256.0, RGBA_G(*rgba)/256.0, RGBA_B(*rgba)/256.0);
201 sp_color_cmyk_to_rgb_floatv (rgb_v, render_cyan ? cmyk_v[0] : 0,
202 render_magenta ? cmyk_v[1] : 0,
203 render_yellow ? cmyk_v[2] : 0,
204 render_black ? cmyk_v[3] : 0);
205 *rgba = (FLOAT_TO_UINT8(rgb_v[0])<<24) + (FLOAT_TO_UINT8(rgb_v[1])<<16) + (FLOAT_TO_UINT8(rgb_v[2])<<8) + 0xff;
206 }
208 /*
209 Local Variables:
210 mode:c++
211 c-file-style:"stroustrup"
212 c-file-offsets:((innamespace . 0)(inline-open . 0)(case-label . +))
213 indent-tabs-mode:nil
214 fill-column:99
215 End:
216 */
217 // vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:fileencoding=utf-8:textwidth=99 :