void xps_parse_tiling_brush(xps_context *ctx, fz_matrix ctm, fz_rect area, char *base_uri, xps_resource *dict, xml_element *root, void (*func)(xps_context*, fz_matrix, fz_rect, char*, xps_resource*, xml_element*, void*), void *user) { xml_element *node; struct closure c; char *opacity_att; char *transform_att; char *viewbox_att; char *viewport_att; char *tile_mode_att; char *viewbox_units_att; char *viewport_units_att; xml_element *transform_tag = NULL; fz_matrix transform; fz_rect viewbox; fz_rect viewport; float xstep, ystep; float xscale, yscale; int tile_mode; opacity_att = xml_att(root, "Opacity"); transform_att = xml_att(root, "Transform"); viewbox_att = xml_att(root, "Viewbox"); viewport_att = xml_att(root, "Viewport"); tile_mode_att = xml_att(root, "TileMode"); viewbox_units_att = xml_att(root, "ViewboxUnits"); viewport_units_att = xml_att(root, "ViewportUnits"); c.base_uri = base_uri; c.dict = dict; c.root = root; c.user = user; c.func = func; for (node = xml_down(root); node; node = xml_next(node)) { if (!strcmp(xml_tag(node), "ImageBrush.Transform")) transform_tag = xml_down(node); if (!strcmp(xml_tag(node), "VisualBrush.Transform")) transform_tag = xml_down(node); } xps_resolve_resource_reference(ctx, dict, &transform_att, &transform_tag, NULL); transform = fz_identity; if (transform_att) xps_parse_render_transform(ctx, transform_att, &transform); if (transform_tag) xps_parse_matrix_transform(ctx, transform_tag, &transform); ctm = fz_concat(transform, ctm); viewbox = fz_unit_rect; if (viewbox_att) xps_parse_rectangle(ctx, viewbox_att, &viewbox); viewport = fz_unit_rect; if (viewport_att) xps_parse_rectangle(ctx, viewport_att, &viewport); /* some sanity checks on the viewport/viewbox size */ if (fabsf(viewport.x1 - viewport.x0) < 0.01f) return; if (fabsf(viewport.y1 - viewport.y0) < 0.01f) return; if (fabsf(viewbox.x1 - viewbox.x0) < 0.01f) return; if (fabsf(viewbox.y1 - viewbox.y0) < 0.01f) return; xstep = viewbox.x1 - viewbox.x0; ystep = viewbox.y1 - viewbox.y0; xscale = (viewport.x1 - viewport.x0) / xstep; yscale = (viewport.y1 - viewport.y0) / ystep; tile_mode = TILE_NONE; if (tile_mode_att) { if (!strcmp(tile_mode_att, "None")) tile_mode = TILE_NONE; if (!strcmp(tile_mode_att, "Tile")) tile_mode = TILE_TILE; if (!strcmp(tile_mode_att, "FlipX")) tile_mode = TILE_FLIP_X; if (!strcmp(tile_mode_att, "FlipY")) tile_mode = TILE_FLIP_Y; if (!strcmp(tile_mode_att, "FlipXY")) tile_mode = TILE_FLIP_X_Y; } if (tile_mode == TILE_FLIP_X || tile_mode == TILE_FLIP_X_Y) xstep *= 2; if (tile_mode == TILE_FLIP_Y || tile_mode == TILE_FLIP_X_Y) ystep *= 2; xps_begin_opacity(ctx, ctm, area, base_uri, dict, opacity_att, NULL); ctm = fz_concat(fz_translate(viewport.x0, viewport.y0), ctm); ctm = fz_concat(fz_scale(xscale, yscale), ctm); ctm = fz_concat(fz_translate(-viewbox.x0, -viewbox.y0), ctm); if (tile_mode != TILE_NONE) { int x0, y0, x1, y1; fz_matrix invctm = fz_invert_matrix(ctm); area = fz_transform_rect(invctm, area); x0 = floorf(area.x0 / xstep); y0 = floorf(area.y0 / ystep); x1 = ceilf(area.x1 / xstep); y1 = ceilf(area.y1 / ystep); #ifdef TILE if ((x1 - x0) * (y1 - y0) > 1) #else if (0) #endif { fz_rect bigview = viewbox; bigview.x1 = bigview.x0 + xstep; bigview.y1 = bigview.y0 + ystep; fz_begin_tile(ctx->dev, area, bigview, xstep, ystep, ctm); xps_paint_tiling_brush(ctx, ctm, viewbox, tile_mode, &c); fz_end_tile(ctx->dev); } else { int x, y; for (y = y0; y < y1; y++) { for (x = x0; x < x1; x++) { fz_matrix ttm = fz_concat(fz_translate(xstep * x, ystep * y), ctm); xps_paint_tiling_brush(ctx, ttm, viewbox, tile_mode, &c); } } } } else { xps_paint_tiling_brush(ctx, ctm, viewbox, tile_mode, &c); } xps_end_opacity(ctx, base_uri, dict, opacity_att, NULL); }
void xps_parse_tiling_brush(fz_context *ctx, xps_document *doc, const fz_matrix *ctm, const fz_rect *area, char *base_uri, xps_resource *dict, fz_xml *root, void (*func)(fz_context *ctx, xps_document*, const fz_matrix*, const fz_rect*, char*, xps_resource*, fz_xml*, void*), void *user) { fz_device *dev = doc->dev; fz_xml *node; struct closure c; char *opacity_att; char *transform_att; char *viewbox_att; char *viewport_att; char *tile_mode_att; fz_xml *transform_tag = NULL; fz_matrix transform; fz_rect viewbox; fz_rect viewport; float xstep, ystep; float xscale, yscale; int tile_mode; opacity_att = fz_xml_att(root, "Opacity"); transform_att = fz_xml_att(root, "Transform"); viewbox_att = fz_xml_att(root, "Viewbox"); viewport_att = fz_xml_att(root, "Viewport"); tile_mode_att = fz_xml_att(root, "TileMode"); c.base_uri = base_uri; c.dict = dict; c.root = root; c.user = user; c.func = func; for (node = fz_xml_down(root); node; node = fz_xml_next(node)) { if (fz_xml_is_tag(node, "ImageBrush.Transform")) transform_tag = fz_xml_down(node); if (fz_xml_is_tag(node, "VisualBrush.Transform")) transform_tag = fz_xml_down(node); } xps_resolve_resource_reference(ctx, doc, dict, &transform_att, &transform_tag, NULL); transform = fz_identity; if (transform_att) xps_parse_render_transform(ctx, doc, transform_att, &transform); if (transform_tag) xps_parse_matrix_transform(ctx, doc, transform_tag, &transform); fz_concat(&transform, &transform, ctm); viewbox = fz_unit_rect; if (viewbox_att) xps_parse_rectangle(ctx, doc, viewbox_att, &viewbox); viewport = fz_unit_rect; if (viewport_att) xps_parse_rectangle(ctx, doc, viewport_att, &viewport); if (fabsf(viewport.x1 - viewport.x0) < 0.01f || fabsf(viewport.y1 - viewport.y0) < 0.01f) fz_warn(ctx, "not drawing tile for viewport size %.4f x %.4f", viewport.x1 - viewport.x0, viewport.y1 - viewport.y0); else if (fabsf(viewbox.x1 - viewbox.x0) < 0.01f || fabsf(viewbox.y1 - viewbox.y0) < 0.01f) fz_warn(ctx, "not drawing tile for viewbox size %.4f x %.4f", viewbox.x1 - viewbox.x0, viewbox.y1 - viewbox.y0); /* some sanity checks on the viewport/viewbox size */ if (fabsf(viewport.x1 - viewport.x0) < 0.01f) return; if (fabsf(viewport.y1 - viewport.y0) < 0.01f) return; if (fabsf(viewbox.x1 - viewbox.x0) < 0.01f) return; if (fabsf(viewbox.y1 - viewbox.y0) < 0.01f) return; xstep = viewbox.x1 - viewbox.x0; ystep = viewbox.y1 - viewbox.y0; xscale = (viewport.x1 - viewport.x0) / xstep; yscale = (viewport.y1 - viewport.y0) / ystep; tile_mode = TILE_NONE; if (tile_mode_att) { if (!strcmp(tile_mode_att, "None")) tile_mode = TILE_NONE; if (!strcmp(tile_mode_att, "Tile")) tile_mode = TILE_TILE; if (!strcmp(tile_mode_att, "FlipX")) tile_mode = TILE_FLIP_X; if (!strcmp(tile_mode_att, "FlipY")) tile_mode = TILE_FLIP_Y; if (!strcmp(tile_mode_att, "FlipXY")) tile_mode = TILE_FLIP_X_Y; } if (tile_mode == TILE_FLIP_X || tile_mode == TILE_FLIP_X_Y) xstep *= 2; if (tile_mode == TILE_FLIP_Y || tile_mode == TILE_FLIP_X_Y) ystep *= 2; xps_begin_opacity(ctx, doc, &transform, area, base_uri, dict, opacity_att, NULL); fz_pre_translate(&transform, viewport.x0, viewport.y0); fz_pre_scale(&transform, xscale, yscale); fz_pre_translate(&transform, -viewbox.x0, -viewbox.y0); if (tile_mode != TILE_NONE) { int x0, y0, x1, y1; fz_matrix invctm; fz_rect local_area = *area; fz_transform_rect(&local_area, fz_invert_matrix(&invctm, &transform)); x0 = floorf(local_area.x0 / xstep); y0 = floorf(local_area.y0 / ystep); x1 = ceilf(local_area.x1 / xstep); y1 = ceilf(local_area.y1 / ystep); #ifdef TILE if ((x1 - x0) * (y1 - y0) > 1) #else if (0) #endif { fz_rect bigview = viewbox; bigview.x1 = bigview.x0 + xstep; bigview.y1 = bigview.y0 + ystep; fz_begin_tile(ctx, dev, &local_area, &bigview, xstep, ystep, &transform); xps_paint_tiling_brush(ctx, doc, &transform, &viewbox, tile_mode, &c); fz_end_tile(ctx, dev); } else { int x, y; for (y = y0; y < y1; y++) { for (x = x0; x < x1; x++) { fz_matrix ttm = transform; fz_pre_translate(&ttm, xstep * x, ystep * y); xps_paint_tiling_brush(ctx, doc, &ttm, &viewbox, tile_mode, &c); } } } } else { xps_paint_tiling_brush(ctx, doc, &transform, &viewbox, tile_mode, &c); } xps_end_opacity(ctx, doc, base_uri, dict, opacity_att, NULL); }
int xps_parse_tiling_brush(xps_context_t *ctx, char *base_uri, xps_resource_t *dict, xps_item_t *root, int (*func)(xps_context_t*, char*, xps_resource_t*, xps_item_t*, void*), void *user) { xps_item_t *node; int code; char *opacity_att; char *transform_att; char *viewbox_att; char *viewport_att; char *tile_mode_att; /*char *viewbox_units_att;*/ /*char *viewport_units_att;*/ xps_item_t *transform_tag = NULL; gs_matrix transform; gs_rect viewbox; gs_rect viewport; float scalex, scaley; int tile_mode; opacity_att = xps_att(root, "Opacity"); transform_att = xps_att(root, "Transform"); viewbox_att = xps_att(root, "Viewbox"); viewport_att = xps_att(root, "Viewport"); tile_mode_att = xps_att(root, "TileMode"); /*viewbox_units_att = xps_att(root, "ViewboxUnits");*/ /*viewport_units_att = xps_att(root, "ViewportUnits");*/ for (node = xps_down(root); node; node = xps_next(node)) { if (!strcmp(xps_tag(node), "ImageBrush.Transform")) transform_tag = xps_down(node); if (!strcmp(xps_tag(node), "VisualBrush.Transform")) transform_tag = xps_down(node); } xps_resolve_resource_reference(ctx, dict, &transform_att, &transform_tag, NULL); gs_make_identity(&transform); if (transform_att) xps_parse_render_transform(ctx, transform_att, &transform); if (transform_tag) xps_parse_matrix_transform(ctx, transform_tag, &transform); viewbox.p.x = 0.0; viewbox.p.y = 0.0; viewbox.q.x = 1.0; viewbox.q.y = 1.0; if (viewbox_att) xps_parse_rectangle(ctx, viewbox_att, &viewbox); viewport.p.x = 0.0; viewport.p.y = 0.0; viewport.q.x = 1.0; viewport.q.y = 1.0; if (viewport_att) xps_parse_rectangle(ctx, viewport_att, &viewport); /* some sanity checks on the viewport/viewbox size */ if (fabs(viewport.q.x - viewport.p.x) < 0.01) { gs_warn("skipping tile with zero width view port"); return 0; } if (fabs(viewport.q.y - viewport.p.y) < 0.01) { gs_warn("skipping tile with zero height view port"); return 0; } if (fabs(viewbox.q.x - viewbox.p.x) < 0.01) { gs_warn("skipping tile with zero width view box"); return 0; } if (fabs(viewbox.q.y - viewbox.p.y) < 0.01) { gs_warn("skipping tile with zero height view box"); return 0; } scalex = (viewport.q.x - viewport.p.x) / (viewbox.q.x - viewbox.p.x); scaley = (viewport.q.y - viewport.p.y) / (viewbox.q.y - viewbox.p.y); tile_mode = TILE_NONE; if (tile_mode_att) { if (!strcmp(tile_mode_att, "None")) tile_mode = TILE_NONE; if (!strcmp(tile_mode_att, "Tile")) tile_mode = TILE_TILE; if (!strcmp(tile_mode_att, "FlipX")) tile_mode = TILE_FLIP_X; if (!strcmp(tile_mode_att, "FlipY")) tile_mode = TILE_FLIP_Y; if (!strcmp(tile_mode_att, "FlipXY")) tile_mode = TILE_FLIP_X_Y; } gs_gsave(ctx->pgs); code = xps_begin_opacity(ctx, base_uri, dict, opacity_att, NULL, false, false); if (code) { gs_grestore(ctx->pgs); return gs_rethrow(code, "cannot create transparency group"); } /* TODO(tor): check viewport and tiling to see if we can set it to TILE_NONE */ if (tile_mode != TILE_NONE) { struct tile_closure_s closure; gs_client_pattern gspat; gs_client_color gscolor; gs_color_space *cs; bool sa; closure.ctx = ctx; closure.base_uri = base_uri; closure.dict = dict; closure.tag = root; closure.tile_mode = tile_mode; closure.user = user; closure.func = func; closure.viewbox.p.x = viewbox.p.x; closure.viewbox.p.y = viewbox.p.y; closure.viewbox.q.x = viewbox.q.x; closure.viewbox.q.y = viewbox.q.y; gs_pattern1_init(&gspat); uid_set_UniqueID(&gspat.uid, gs_next_ids(ctx->memory, 1)); gspat.PaintType = 1; gspat.TilingType = 2; gspat.PaintProc = xps_remap_pattern; gspat.client_data = &closure; /* We need to know if this tiling brush includes transparency. We could do a proper scan, but for now we'll be lazy and just look at the flag from scanning the page. */ gspat.uses_transparency = ctx->has_transparency; gspat.XStep = viewbox.q.x - viewbox.p.x; gspat.YStep = viewbox.q.y - viewbox.p.y; gspat.BBox.p.x = viewbox.p.x; gspat.BBox.p.y = viewbox.p.y; gspat.BBox.q.x = viewbox.q.x; gspat.BBox.q.y = viewbox.q.y; if (tile_mode == TILE_FLIP_X || tile_mode == TILE_FLIP_X_Y) { gspat.BBox.q.x += gspat.XStep; gspat.XStep *= 2; } if (tile_mode == TILE_FLIP_Y || tile_mode == TILE_FLIP_X_Y) { gspat.BBox.q.y += gspat.YStep; gspat.YStep *= 2; } gs_matrix_translate(&transform, viewport.p.x, viewport.p.y, &transform); gs_matrix_scale(&transform, scalex, scaley, &transform); gs_matrix_translate(&transform, -viewbox.p.x, -viewbox.p.y, &transform); cs = ctx->srgb; gs_setcolorspace(ctx->pgs, cs); gsicc_profile_reference(cs->cmm_icc_profile_data, 1); sa = gs_currentstrokeadjust(ctx->pgs); gs_setstrokeadjust(ctx->pgs, false); gs_makepattern(&gscolor, &gspat, &transform, ctx->pgs, NULL); gs_setpattern(ctx->pgs, &gscolor); xps_fill(ctx); gs_setstrokeadjust(ctx->pgs, sa); gsicc_profile_reference(cs->cmm_icc_profile_data, -1); /* gs_makepattern increments the pattern count stored in the color * structure. We will discard the color struct (its on the stack) * so we need to decrement the reference before we throw away * the structure. */ gs_pattern_reference(&gscolor, -1); } else { xps_clip(ctx); gs_concat(ctx->pgs, &transform); gs_translate(ctx->pgs, viewport.p.x, viewport.p.y); gs_scale(ctx->pgs, scalex, scaley); gs_translate(ctx->pgs, -viewbox.p.x, -viewbox.p.y); gs_moveto(ctx->pgs, viewbox.p.x, viewbox.p.y); gs_lineto(ctx->pgs, viewbox.p.x, viewbox.q.y); gs_lineto(ctx->pgs, viewbox.q.x, viewbox.q.y); gs_lineto(ctx->pgs, viewbox.q.x, viewbox.p.y); gs_closepath(ctx->pgs); gs_clip(ctx->pgs); gs_newpath(ctx->pgs); code = func(ctx, base_uri, dict, root, user); if (code < 0) { xps_end_opacity(ctx, base_uri, dict, opacity_att, NULL); gs_grestore(ctx->pgs); return gs_rethrow(code, "cannot draw tile"); } } xps_end_opacity(ctx, base_uri, dict, opacity_att, NULL); gs_grestore(ctx->pgs); return 0; }