From ad82acda333074c23bd6aa010faa5286c89828f0 Mon Sep 17 00:00:00 2001 From: kramm Date: Wed, 17 Nov 2004 17:44:26 +0000 Subject: [PATCH] added support for rendering multiple pages into a single frame. --- pdf2swf/swfoutput.cc | 155 +++++++++++++++++++++++++++----------------------- 1 file changed, 84 insertions(+), 71 deletions(-) diff --git a/pdf2swf/swfoutput.cc b/pdf2swf/swfoutput.cc index 1c518a2..3318cfb 100644 --- a/pdf2swf/swfoutput.cc +++ b/pdf2swf/swfoutput.cc @@ -85,7 +85,6 @@ typedef struct _swfoutput_internal int depth; int startdepth; int linewidth; - SRECT lastpagesize; SHAPE* shape; int shapeid; @@ -98,17 +97,22 @@ typedef struct _swfoutput_internal int lastwasfill; int shapeisempty; char fill; - int sizex; - int sizey; + int max_x; + int max_y; TAG* cliptags[128]; int clipshapes[128]; U32 clipdepths[128]; int clippos; + + int frameno; + int lastframeno; char fillstylechanged; int bboxrectpos; SRECT bboxrect; + + TAG*cliptag; chardata_t chardata[CHARDATAMAX]; int chardatapos; @@ -129,6 +133,8 @@ static swfoutput_internal* init_internal_struct() i->linewidth = 0; i->shapeid = -1; i->textid = -1; + i->frameno = 0; + i->lastframeno = 0; i->fillstyleid; i->linestyleid; @@ -634,15 +640,15 @@ void drawShortPathWithEnds(struct swfoutput*obj, double x, double y, struct swfm if(dir) { /* FIXME: box should be smaller */ q0.x = 0; q0.y = 0; - q1.x = i->sizex; q1.y = 0; - q2.x = i->sizex; q2.y = i->sizey; - q3.x = 0; q3.y = i->sizey; + q1.x = i->max_x; q1.y = 0; + q2.x = i->max_x; q2.y = i->max_y; + q3.x = 0; q3.y = i->max_y; } else { /* FIXME: box should be smaller */ - q0.x = i->sizex; q0.y = i->sizey; - q1.x = 0; q1.y = i->sizey; + q0.x = i->max_x; q0.y = i->max_y; + q1.x = 0; q1.y = i->max_y; q2.x = 0; q2.y = 0; - q3.x = i->sizex; q3.y = 0; + q3.x = i->max_x; q3.y = 0; } q4.x = p0.x; q4.y = p0.y; @@ -1440,6 +1446,46 @@ void swfoutput_pagefeed(struct swfoutput*obj) swf_ActionSet(i->tag,atag); } i->tag = swf_InsertTag(i->tag,ST_SHOWFRAME); + i->frameno ++; + + for(i->depth--;i->depth>=i->startdepth;i->depth--) { + i->tag = swf_InsertTag(i->tag,ST_REMOVEOBJECT2); + swf_SetU16(i->tag,i->depth); + } + i->depth = i->startdepth; +} + +static void setBackground(struct swfoutput*obj, int x1, int y1, int x2, int y2) +{ + swfoutput_internal*i = (swfoutput_internal*)obj->internal; + RGBA rgb; + rgb.a = rgb.r = rgb.g = rgb.b = 0xff; + SRECT r; + SHAPE* s; + int ls1=0,fs1=0; + int shapeid = ++i->currentswfid; + r.xmin = x1; + r.ymin = y1; + r.xmax = x2; + r.ymax = y2; + i->tag = swf_InsertTag(i->tag, ST_DEFINESHAPE); + swf_ShapeNew(&s); + fs1 = swf_ShapeAddSolidFillStyle(s, &rgb); + swf_SetU16(i->tag,shapeid); + swf_SetRect(i->tag,&r); + swf_SetShapeHeader(i->tag,s); + swf_ShapeSetAll(i->tag,s,x1,y1,ls1,fs1,0); + swf_ShapeSetLine(i->tag,s,(x2-x1),0); + swf_ShapeSetLine(i->tag,s,0,(y2-y1)); + swf_ShapeSetLine(i->tag,s,(x1-x2),0); + swf_ShapeSetLine(i->tag,s,0,(y1-y2)); + swf_ShapeSetEnd(i->tag); + swf_ShapeFree(s); + i->tag = swf_InsertTag(i->tag, ST_PLACEOBJECT2); + swf_ObjectPlace(i->tag,shapeid,i->depth++,0,0,0); + i->tag = swf_InsertTag(i->tag, ST_PLACEOBJECT2); + swf_ObjectPlaceClip(i->tag,shapeid,i->depth++,0,0,0,65535); + i->cliptag = i->tag; } void swfoutput_newpage(struct swfoutput*obj, int pageNum, int movex, int movey, int x1, int y1, int x2, int y2) @@ -1452,70 +1498,35 @@ void swfoutput_newpage(struct swfoutput*obj, int pageNum, int movex, int movey, i->page_matrix.tx = movex*20; i->page_matrix.ty = movey*20; - for(i->depth--;i->depth>=i->startdepth;i->depth--) { - i->tag = swf_InsertTag(i->tag,ST_REMOVEOBJECT2); - swf_SetU16(i->tag,i->depth); + if(i->cliptag && i->frameno == i->lastframeno) { + SWFPLACEOBJECT obj; + swf_GetPlaceObject(i->cliptag, &obj); + obj.clipdepth = i->depth++; + swf_ResetTag(i->cliptag, i->cliptag->id); + swf_SetPlaceObject(i->cliptag, &obj); + swf_PlaceObjectFree(&obj); } - /* TODO: this should all be done in SWFOutputDev */ - i->depth = i->startdepth = 3; /* leave room for clip and background rectangle */ + i->max_x = x2; + i->max_y = y2; + + msg(" processing page %d (%dx%d:%d:%d)", pageNum,x2-x1,y2-y1, x1, y1); - i->sizex = x2; - i->sizey = y2; x1*=20;y1*=20;x2*=20;y2*=20; - if(i->lastpagesize.xmin != x1 || - i->lastpagesize.xmax != x2 || - i->lastpagesize.ymin != y1 || - i->lastpagesize.ymax != y2) - {/* add white clipping rectangle */ - msg(" processing page %d (%dx%d)", pageNum,i->sizex,i->sizey); - - if(!i->firstpage) { - msg(" Page has a different size than previous ones"); - i->tag = swf_InsertTag(i->tag,ST_REMOVEOBJECT2); - swf_SetU16(i->tag,1); - i->tag = swf_InsertTag(i->tag,ST_REMOVEOBJECT2); - swf_SetU16(i->tag,2); - } - - RGBA rgb; - rgb.a = rgb.r = rgb.g = rgb.b = 0xff; - SRECT r; - SHAPE* s; - int ls1=0,fs1=0; - int shapeid = ++i->currentswfid; - r.xmin = x1; - r.ymin = y1; - r.xmax = x2; - r.ymax = y2; - i->tag = swf_InsertTag(i->tag, ST_DEFINESHAPE); - swf_ShapeNew(&s); - fs1 = swf_ShapeAddSolidFillStyle(s, &rgb); - swf_SetU16(i->tag,shapeid); - swf_SetRect(i->tag,&r); - swf_SetShapeHeader(i->tag,s); - swf_ShapeSetAll(i->tag,s,x1,y1,ls1,fs1,0); - swf_ShapeSetLine(i->tag,s,(x2-x1),0); - swf_ShapeSetLine(i->tag,s,0,(y2-y1)); - swf_ShapeSetLine(i->tag,s,(x1-x2),0); - swf_ShapeSetLine(i->tag,s,0,(y1-y2)); - swf_ShapeSetEnd(i->tag); - swf_ShapeFree(s); - i->tag = swf_InsertTag(i->tag, ST_PLACEOBJECT2); - swf_ObjectPlace(i->tag,shapeid,/*depth*/1,0,0,0); - i->tag = swf_InsertTag(i->tag, ST_PLACEOBJECT2); - swf_ObjectPlaceClip(i->tag,shapeid,/*depth*/2,0,0,0,65535); - } else { - msg(" processing page %d", pageNum); - } + /* set clipping/background rectangle */ + /* TODO: this should all be done in SWFOutputDev */ + setBackground(obj, x1, y1, x2, y2); - i->lastpagesize.xmin = x1; - i->lastpagesize.xmax = x2; - i->lastpagesize.ymin = y1; - i->lastpagesize.ymax = y2; - swf_ExpandRect2(&i->swf.movieSize, &i->lastpagesize); + /* increase SWF's bounding box */ + SRECT r; + r.xmin = x1; + r.ymin = y1; + r.xmax = x2; + r.ymax = y2; + swf_ExpandRect2(&i->swf.movieSize, &r); + i->lastframeno = i->frameno; i->firstpage = 0; i->pagefinished = 0; } @@ -1531,13 +1542,12 @@ void swfoutput_init(struct swfoutput* obj) SRECT r; RGBA rgb; - msg(" initializing swf output for size %d*%d\n", i->sizex,i->sizey); + msg(" initializing swf output for size %d*%d\n", i->max_x,i->max_y); obj->swffont = 0; obj->drawmode = -1; memset(&i->swf,0x00,sizeof(SWF)); - memset(&i->lastpagesize,0x00,sizeof(SRECT)); i->swf.fileVersion = config_flashversion; i->swf.frameRate = 0x0040; // 1 frame per 4 seconds @@ -1551,7 +1561,7 @@ void swfoutput_init(struct swfoutput* obj) rgb.a = rgb.r = rgb.g = rgb.b = 0xff; swf_SetRGB(i->tag,&rgb); - i->startdepth = i->depth = 0; + i->startdepth = i->depth = 3; /* leave room for clip and background rectangle */ if(config_protect) i->tag = swf_InsertTag(i->tag, ST_PROTECT); @@ -1581,8 +1591,8 @@ static void startshape(struct swfoutput*obj) i->bboxrectpos = i->tag->len; r.xmin = 0; r.ymin = 0; - r.xmax = 20*i->sizex; - r.ymax = 20*i->sizey; + r.xmax = 20*i->max_x; + r.ymax = 20*i->max_y; swf_SetRect(i->tag,&r); memset(&i->bboxrect, 0, sizeof(i->bboxrect)); @@ -1739,6 +1749,9 @@ void swfoutput_finalize(struct swfoutput*obj) if(i->tag && i->tag->id == ST_END) return; //already done + + if(i->frameno == i->lastframeno) // fix: add missing pagefeed + swfoutput_pagefeed(obj); endpage(obj); fontlist_t *tmp,*iterator = i->fontlist; -- 1.7.10.4