+/* FullBitmapOutputDev.cc
+
+ Output Device which creates a bitmap.
+
+ Swftools is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2 of the License, or
+ (at your option) any later version.
+
+ Swftools is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with swftools; if not, write to the Free Software
+ Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */
+
+#include <stdlib.h>
+#include <stdio.h>
+#include <memory.h>
+#include "config.h"
+#include "FullBitmapOutputDev.h"
+#include "GFXOutputDev.h"
+#include "SplashBitmap.h"
+#include "SplashPattern.h"
+#include "Splash.h"
+#include "../log.h"
+#include "../png.h"
+#include "../devices/record.h"
+
+static SplashColor splash_white = {255,255,255};
+static SplashColor splash_black = {0,0,0};
+
+FullBitmapOutputDev::FullBitmapOutputDev(InfoOutputDev*info, PDFDoc*doc)
+{
+ this->doc = doc;
+ this->xref = doc->getXRef();
+
+ msg("<verbose> Rendering everything to a bitmap");
+
+ /* color graphic output device, for creating bitmaps */
+ this->rgbdev = new SplashOutputDev(splashModeRGB8, 1, gFalse, splash_white, gTrue, gTrue);
+
+ /* device for handling links */
+ this->gfxdev = new GFXOutputDev(info, this->doc);
+
+ this->rgbdev->startDoc(this->xref);
+}
+FullBitmapOutputDev::~FullBitmapOutputDev()
+{
+ if(this->rgbdev) {
+ delete this->rgbdev;this->rgbdev = 0;
+ }
+ if(this->gfxdev) {
+ delete this->gfxdev;this->gfxdev= 0;
+ }
+}
+
+GBool FullBitmapOutputDev::getVectorAntialias()
+{
+ return this->rgbdev->getVectorAntialias();
+}
+void FullBitmapOutputDev::setVectorAntialias(GBool vaa)
+{
+ this->rgbdev->setVectorAntialias(vaa);
+}
+void FullBitmapOutputDev::setDevice(gfxdevice_t*dev)
+{
+ this->dev = dev;
+ gfxdev->setDevice(dev);
+}
+void FullBitmapOutputDev::setMove(int x,int y)
+{
+ this->user_movex = x;
+ this->user_movey = y;
+ gfxdev->setMove(x,y);
+}
+void FullBitmapOutputDev::setClip(int x1,int y1,int x2,int y2)
+{
+ this->user_clipx1 = x1;
+ this->user_clipy1 = y1;
+ this->user_clipx2 = x2;
+ this->user_clipy2 = y2;
+ gfxdev->setClip(x1,y1,x2,y2);
+}
+void FullBitmapOutputDev::setParameter(const char*key, const char*value)
+{
+}
+void FullBitmapOutputDev::preparePage(int pdfpage, int outputpage)
+{
+ gfxdev->preparePage(pdfpage, outputpage);
+}
+
+static void getBitmapBBox(Guchar*alpha, int width, int height, int*xmin, int*ymin, int*xmax, int*ymax)
+{
+ *ymin = -1;
+ *xmin = width;
+ *xmax = 0;
+ int x,y;
+ for(y=0;y<height;y++) {
+ Guchar*a = &alpha[y*width];
+ for(x=0;x<width;x++) {
+ if(a[x]) break;
+ }
+ int left = x; //first occupied pixel from left
+ int right = x+1; //last non-occupied pixel from right
+ for(;x<width;x++) {
+ if(a[x]) right=x+1;
+ }
+
+ if(left!=width) {
+ if(*ymin<0)
+ *ymin=y;
+ *ymax=y+1;
+ if(left<*xmin) *xmin = left;
+ if(right>*xmax) *xmax = right;
+ }
+ }
+ if(*xmin>=*xmax || *ymin>=*ymax) {
+ *xmin = 0;
+ *ymin = 0;
+ *xmax = 0;
+ *ymax = 0;
+ }
+}
+
+void FullBitmapOutputDev::flushBitmap()
+{
+ int width = rgbdev->getBitmapWidth();
+ int height = rgbdev->getBitmapHeight();
+
+ SplashColorPtr rgb = rgbdev->getBitmap()->getDataPtr();
+ Guchar*alpha = rgbdev->getBitmap()->getAlphaPtr();
+
+ int xmin,ymin,xmax,ymax;
+ getBitmapBBox(alpha, width, height, &xmin,&ymin,&xmax,&ymax);
+
+ /* clip against (-movex, -movey, -movex+width, -movey+height) */
+ if(xmin < -this->movex) xmin = -this->movex;
+ if(ymin < -this->movey) ymin = -this->movey;
+ if(xmax > -this->movex + width) xmax = -this->movex+this->width;
+ if(ymax > -this->movey + height) ymax = -this->movey+this->height;
+
+ msg("<verbose> Flushing bitmap (bbox: %d,%d,%d,%d)", xmin,ymin,xmax,ymax);
+
+ if((xmax-xmin)<=0 || (ymax-ymin)<=0) // no bitmap, nothing to do
+ return;
+
+ if(sizeof(SplashColor)!=3) {
+ msg("<error> sizeof(SplashColor)!=3");
+ return;
+ }
+ //xmin = ymin = 0;
+ //xmax = width;
+ //ymax = height;
+
+ int rangex = xmax-xmin;
+ int rangey = ymax-ymin;
+ gfximage_t*img = (gfximage_t*)malloc(sizeof(gfximage_t));
+ img->data = (gfxcolor_t*)malloc(rangex * rangey * 4);
+ img->width = rangex;
+ img->height = rangey;
+ int x,y;
+ for(y=0;y<rangey;y++) {
+ SplashColorPtr in=&rgb[((y+ymin)*width+xmin)*sizeof(SplashColor)];
+ gfxcolor_t*out = &img->data[y*rangex];
+ Guchar*ain = &alpha[(y+ymin)*width+xmin];
+ for(x=0;x<rangex;x++) {
+ /* according to endPage()/compositeBackground() in xpdf/SplashOutputDev.cc, we
+ have to premultiply alpha (mix background and pixel according to the alpha channel).
+ */
+ out[x].r = (in[x*3+0]*ain[x])/255;
+ out[x].g = (in[x*3+1]*ain[x])/255;
+ out[x].b = (in[x*3+2]*ain[x])/255;
+ out[x].a = ain[x];
+ }
+ }
+ /* transform bitmap rectangle to "device space" */
+ xmin += movex;
+ ymin += movey;
+ xmax += movex;
+ ymax += movey;
+
+ gfxmatrix_t m;
+ m.tx = xmin;
+ m.ty = ymin;
+ m.m00 = m.m11 = 1;
+ m.m10 = m.m01 = 0;
+
+ gfxline_t* line = gfxline_makerectangle(xmin, ymin, xmax, ymax);
+ dev->fillbitmap(dev, line, img, &m, 0);
+ gfxline_free(line);
+
+ memset(rgbdev->getBitmap()->getAlphaPtr(), 0, rgbdev->getBitmap()->getWidth()*rgbdev->getBitmap()->getHeight());
+ memset(rgbdev->getBitmap()->getDataPtr(), 0, rgbdev->getBitmap()->getRowSize()*rgbdev->getBitmap()->getHeight());
+
+ free(img->data);img->data=0;free(img);img=0;
+}
+
+void FullBitmapOutputDev::startPage(int pageNum, GfxState *state, double crop_x1, double crop_y1, double crop_x2, double crop_y2)
+{
+ double x1,y1,x2,y2;
+ state->transform(crop_x1,crop_y1,&x1,&y1);
+ state->transform(crop_x2,crop_y2,&x2,&y2);
+ if(x2<x1) {double x3=x1;x1=x2;x2=x3;}
+ if(y2<y1) {double y3=y1;y1=y2;y2=y3;}
+
+ this->movex = -(int)x1 - user_movex;
+ this->movey = -(int)y1 - user_movey;
+
+ if(user_clipx1|user_clipy1|user_clipx2|user_clipy2) {
+ x1 = user_clipx1;
+ x2 = user_clipx2;
+ y1 = user_clipy1;
+ y2 = user_clipy2;
+ }
+ this->width = (int)(x2-x1);
+ this->height = (int)(y2-y1);
+
+ msg("<debug> startPage");
+ rgbdev->startPage(pageNum, state, crop_x1, crop_y1, crop_x2, crop_y2);
+ gfxdev->startPage(pageNum, state, crop_x1, crop_y1, crop_x2, crop_y2);
+}
+
+void FullBitmapOutputDev::endPage()
+{
+ msg("<verbose> endPage (FullBitmapOutputDev)");
+ flushBitmap();
+ rgbdev->endPage();
+ gfxdev->endPage();
+}
+GBool FullBitmapOutputDev::upsideDown()
+{
+ return rgbdev->upsideDown();
+}
+GBool FullBitmapOutputDev::useDrawChar()
+{
+ return rgbdev->useDrawChar();
+}
+GBool FullBitmapOutputDev::useTilingPatternFill()
+{
+ return rgbdev->useTilingPatternFill();
+}
+GBool FullBitmapOutputDev::useShadedFills()
+{
+ return rgbdev->useShadedFills();
+}
+GBool FullBitmapOutputDev::useDrawForm()
+{
+ return rgbdev->useDrawForm();
+}
+GBool FullBitmapOutputDev::interpretType3Chars()
+{
+ return rgbdev->interpretType3Chars();
+}
+GBool FullBitmapOutputDev::needNonText()
+{
+ return rgbdev->needNonText();
+}
+void FullBitmapOutputDev::setDefaultCTM(double *ctm)
+{
+ rgbdev->setDefaultCTM(ctm);
+ gfxdev->setDefaultCTM(ctm);
+}
+void FullBitmapOutputDev::saveState(GfxState *state)
+{
+ rgbdev->saveState(state);
+}
+void FullBitmapOutputDev::restoreState(GfxState *state)
+{
+ rgbdev->restoreState(state);
+}
+void FullBitmapOutputDev::updateAll(GfxState *state)
+{
+ rgbdev->updateAll(state);
+}
+void FullBitmapOutputDev::updateCTM(GfxState *state, double m11, double m12, double m21, double m22, double m31, double m32)
+{
+ rgbdev->updateCTM(state,m11,m12,m21,m22,m31,m32);
+ gfxdev->updateCTM(state,m11,m12,m21,m22,m31,m32);
+}
+void FullBitmapOutputDev::updateLineDash(GfxState *state)
+{
+ rgbdev->updateLineDash(state);
+}
+void FullBitmapOutputDev::updateFlatness(GfxState *state)
+{
+ rgbdev->updateFlatness(state);
+}
+void FullBitmapOutputDev::updateLineJoin(GfxState *state)
+{
+ rgbdev->updateLineJoin(state);
+}
+void FullBitmapOutputDev::updateLineCap(GfxState *state)
+{
+ rgbdev->updateLineCap(state);
+}
+void FullBitmapOutputDev::updateMiterLimit(GfxState *state)
+{
+ rgbdev->updateMiterLimit(state);
+}
+void FullBitmapOutputDev::updateLineWidth(GfxState *state)
+{
+ rgbdev->updateLineWidth(state);
+}
+void FullBitmapOutputDev::updateStrokeAdjust(GfxState *state)
+{
+ rgbdev->updateStrokeAdjust(state);
+}
+void FullBitmapOutputDev::updateFillColorSpace(GfxState *state)
+{
+ rgbdev->updateFillColorSpace(state);
+}
+void FullBitmapOutputDev::updateStrokeColorSpace(GfxState *state)
+{
+ rgbdev->updateStrokeColorSpace(state);
+}
+void FullBitmapOutputDev::updateFillColor(GfxState *state)
+{
+ rgbdev->updateFillColor(state);
+}
+void FullBitmapOutputDev::updateStrokeColor(GfxState *state)
+{
+ rgbdev->updateStrokeColor(state);
+}
+void FullBitmapOutputDev::updateBlendMode(GfxState *state)
+{
+ rgbdev->updateBlendMode(state);
+}
+void FullBitmapOutputDev::updateFillOpacity(GfxState *state)
+{
+ rgbdev->updateFillOpacity(state);
+}
+void FullBitmapOutputDev::updateStrokeOpacity(GfxState *state)
+{
+ rgbdev->updateStrokeOpacity(state);
+}
+void FullBitmapOutputDev::updateFillOverprint(GfxState *state)
+{
+ rgbdev->updateFillOverprint(state);
+}
+void FullBitmapOutputDev::updateStrokeOverprint(GfxState *state)
+{
+ rgbdev->updateStrokeOverprint(state);
+}
+void FullBitmapOutputDev::updateTransfer(GfxState *state)
+{
+ rgbdev->updateTransfer(state);
+}
+void FullBitmapOutputDev::updateFont(GfxState *state)
+{
+ rgbdev->updateFont(state);
+}
+void FullBitmapOutputDev::updateTextMat(GfxState *state)
+{
+ rgbdev->updateTextMat(state);
+}
+void FullBitmapOutputDev::updateCharSpace(GfxState *state)
+{
+ rgbdev->updateCharSpace(state);
+}
+void FullBitmapOutputDev::updateRender(GfxState *state)
+{
+ rgbdev->updateRender(state);
+}
+void FullBitmapOutputDev::updateRise(GfxState *state)
+{
+ rgbdev->updateRise(state);
+}
+void FullBitmapOutputDev::updateWordSpace(GfxState *state)
+{
+ rgbdev->updateWordSpace(state);
+}
+void FullBitmapOutputDev::updateHorizScaling(GfxState *state)
+{
+ rgbdev->updateHorizScaling(state);
+}
+void FullBitmapOutputDev::updateTextPos(GfxState *state)
+{
+ rgbdev->updateTextPos(state);
+}
+void FullBitmapOutputDev::updateTextShift(GfxState *state, double shift)
+{
+ rgbdev->updateTextShift(state, shift);
+}
+
+void FullBitmapOutputDev::stroke(GfxState *state)
+{
+ msg("<debug> stroke");
+ rgbdev->stroke(state);
+}
+void FullBitmapOutputDev::fill(GfxState *state)
+{
+ msg("<debug> fill");
+ rgbdev->fill(state);
+}
+void FullBitmapOutputDev::eoFill(GfxState *state)
+{
+ msg("<debug> eoFill");
+ rgbdev->eoFill(state);
+}
+#if (xpdfMajorVersion*10000 + xpdfMinorVersion*100 + xpdfUpdateVersion) < 30207
+void FullBitmapOutputDev::tilingPatternFill(GfxState *state, Object *str,
+ int paintType, Dict *resDict,
+ double *mat, double *bbox,
+ int x0, int y0, int x1, int y1,
+ double xStep, double yStep)
+{
+ msg("<debug> tilingPatternFill");
+ rgbdev->tilingPatternFill(state, str, paintType, resDict, mat, bbox, x0, y0, x1, y1, xStep, yStep);
+}
+#else
+void FullBitmapOutputDev::tilingPatternFill(GfxState *state, Gfx *gfx, Object *str,
+ int paintType, Dict *resDict,
+ double *mat, double *bbox,
+ int x0, int y0, int x1, int y1,
+ double xStep, double yStep)
+{
+ msg("<debug> tilingPatternFill");
+ rgbdev->tilingPatternFill(state, gfx, str, paintType, resDict, mat, bbox, x0, y0, x1, y1, xStep, yStep);
+}
+#endif
+
+GBool FullBitmapOutputDev::functionShadedFill(GfxState *state, GfxFunctionShading *shading)
+{
+ msg("<debug> functionShadedFill");
+ return rgbdev->functionShadedFill(state, shading);
+}
+GBool FullBitmapOutputDev::axialShadedFill(GfxState *state, GfxAxialShading *shading)
+{
+ msg("<debug> axialShadedFill");
+ return rgbdev->axialShadedFill(state, shading);
+}
+GBool FullBitmapOutputDev::radialShadedFill(GfxState *state, GfxRadialShading *shading)
+{
+ msg("<debug> radialShadedFill");
+ return rgbdev->radialShadedFill(state, shading);
+}
+
+void FullBitmapOutputDev::clip(GfxState *state)
+{
+ msg("<debug> clip");
+ rgbdev->clip(state);
+}
+void FullBitmapOutputDev::eoClip(GfxState *state)
+{
+ msg("<debug> eoClip");
+ rgbdev->eoClip(state);
+}
+void FullBitmapOutputDev::clipToStrokePath(GfxState *state)
+{
+ msg("<debug> clipToStrokePath");
+ rgbdev->clipToStrokePath(state);
+}
+
+void FullBitmapOutputDev::beginStringOp(GfxState *state)
+{
+ msg("<debug> beginStringOp");
+ rgbdev->beginStringOp(state);
+}
+void FullBitmapOutputDev::endStringOp(GfxState *state)
+{
+ msg("<debug> endStringOp");
+ rgbdev->endStringOp(state);
+}
+void FullBitmapOutputDev::beginString(GfxState *state, GString *s)
+{
+ msg("<debug> beginString");
+ rgbdev->beginString(state, s);
+}
+void FullBitmapOutputDev::endString(GfxState *state)
+{
+ msg("<debug> endString");
+ rgbdev->endString(state);
+}
+void FullBitmapOutputDev::drawChar(GfxState *state, double x, double y,
+ double dx, double dy,
+ double originX, double originY,
+ CharCode code, int nBytes, Unicode *u, int uLen)
+{
+ msg("<debug> drawChar");
+ rgbdev->drawChar(state, x, y, dx, dy, originX, originY, code, nBytes, u, uLen);
+}
+void FullBitmapOutputDev::drawString(GfxState *state, GString *s)
+{
+ msg("<error> internal error: drawString not implemented");
+ rgbdev->drawString(state, s);
+}
+void FullBitmapOutputDev::endTextObject(GfxState *state)
+{
+ /* FIXME: the below might render things (stroke outlines etc.) to gfxdev which
+ might end up unflushed- should be handled similarily as
+ drawChar() above
+ */
+ msg("<debug> endTextObject");
+ rgbdev->endTextObject(state);
+}
+
+/* TODO: these four operations below *should* do nothing, as type3
+ chars are drawn using operations like fill() */
+GBool FullBitmapOutputDev::beginType3Char(GfxState *state, double x, double y,
+ double dx, double dy,
+ CharCode code, Unicode *u, int uLen)
+{
+ msg("<debug> beginType3Char");
+ return rgbdev->beginType3Char(state, x, y, dx, dy, code, u, uLen);
+}
+void FullBitmapOutputDev::type3D0(GfxState *state, double wx, double wy)
+{
+ msg("<debug> type3D0");
+ rgbdev->type3D0(state, wx, wy);
+}
+void FullBitmapOutputDev::type3D1(GfxState *state, double wx, double wy, double llx, double lly, double urx, double ury)
+{
+ msg("<debug> type3D1");
+ rgbdev->type3D1(state, wx, wy, llx, lly, urx, ury);
+}
+void FullBitmapOutputDev::endType3Char(GfxState *state)
+{
+ msg("<debug> endType3Char");
+ rgbdev->endType3Char(state);
+}
+void FullBitmapOutputDev::drawImageMask(GfxState *state, Object *ref, Stream *str,
+ int width, int height, GBool invert,
+ GBool inlineImg)
+{
+ msg("<debug> drawImageMask");
+ rgbdev->drawImageMask(state, ref, str, width, height, invert, inlineImg);
+}
+void FullBitmapOutputDev::drawImage(GfxState *state, Object *ref, Stream *str,
+ int width, int height, GfxImageColorMap *colorMap,
+ int *maskColors, GBool inlineImg)
+{
+ msg("<debug> drawImage");
+ rgbdev->drawImage(state, ref, str, width, height, colorMap, maskColors, inlineImg);
+}
+void FullBitmapOutputDev::drawMaskedImage(GfxState *state, Object *ref, Stream *str,
+ int width, int height,
+ GfxImageColorMap *colorMap,
+ Stream *maskStr, int maskWidth, int maskHeight,
+ GBool maskInvert)
+{
+ msg("<debug> drawMaskedImage");
+ rgbdev->drawMaskedImage(state, ref, str, width, height, colorMap, maskStr, maskWidth, maskHeight, maskInvert);
+}
+void FullBitmapOutputDev::drawSoftMaskedImage(GfxState *state, Object *ref, Stream *str,
+ int width, int height,
+ GfxImageColorMap *colorMap,
+ Stream *maskStr,
+ int maskWidth, int maskHeight,
+ GfxImageColorMap *maskColorMap)
+{
+ msg("<debug> drawSoftMaskedImage");
+ rgbdev->drawSoftMaskedImage(state, ref, str, width, height, colorMap, maskStr, maskWidth, maskHeight, maskColorMap);
+}
+void FullBitmapOutputDev::drawForm(Ref id)
+{
+ msg("<debug> drawForm");
+ rgbdev->drawForm(id);
+}
+
+void FullBitmapOutputDev::processLink(Link *link, Catalog *catalog)
+{
+ msg("<debug> processLink");
+ gfxdev->processLink(link, catalog);
+}
+
+void FullBitmapOutputDev::beginTransparencyGroup(GfxState *state, double *bbox,
+ GfxColorSpace *blendingColorSpace,
+ GBool isolated, GBool knockout,
+ GBool forSoftMask)
+{
+ msg("<debug> beginTransparencyGroup");
+ rgbdev->beginTransparencyGroup(state, bbox, blendingColorSpace, isolated, knockout, forSoftMask);
+}
+void FullBitmapOutputDev::endTransparencyGroup(GfxState *state)
+{
+ msg("<debug> endTransparencyGroup");
+ rgbdev->endTransparencyGroup(state);
+}
+void FullBitmapOutputDev::paintTransparencyGroup(GfxState *state, double *bbox)
+{
+ msg("<debug> paintTransparencyGroup");
+ rgbdev->paintTransparencyGroup(state,bbox);
+}
+void FullBitmapOutputDev::setSoftMask(GfxState *state, double *bbox, GBool alpha, Function *transferFunc, GfxColor *backdropColor)
+{
+ msg("<debug> setSoftMask");
+ rgbdev->setSoftMask(state, bbox, alpha, transferFunc, backdropColor);
+}
+void FullBitmapOutputDev::clearSoftMask(GfxState *state)
+{
+ msg("<debug> clearSoftMask");
+ rgbdev->clearSoftMask(state);
+}