int pic_xids[1024];
int pic_yids[1024];
int pic_ids[1024];
+int pic_width[1024];
+int pic_height[1024];
int picpos = 0;
int pic_id = 0;
+#define SQR(x) ((x)*(x))
+
+unsigned char* antialize(unsigned char*data, int width, int height, int newwidth, int newheight, int palettesize)
+{
+ if((newwidth<2 || newheight<2) ||
+ (width<=newwidth || height<=newheight))
+ return 0;
+ unsigned char*newdata;
+ int x,y;
+ newdata= (unsigned char*)malloc(newwidth*newheight);
+ int t;
+ double fx = (double)(width)/newwidth;
+ double fy = (double)(height)/newheight;
+ double px = 0;
+ int blocksize = (int)(8192/(fx*fy));
+ int r = 8192*256/palettesize;
+ for(x=0;x<newwidth;x++) {
+ double ex = px + fx;
+ int fromx = (int)px;
+ int tox = (int)ex;
+ int xweight1 = (int)(((fromx+1)-px)*256);
+ int xweight2 = (int)((ex-tox)*256);
+ double py =0;
+ for(y=0;y<newheight;y++) {
+ double ey = py + fy;
+ int fromy = (int)py;
+ int toy = (int)ey;
+ int yweight1 = (int)(((fromy+1)-py)*256);
+ int yweight2 = (int)((ey-toy)*256);
+ int a = 0;
+ int xx,yy;
+ for(xx=fromx;xx<=tox;xx++)
+ for(yy=fromy;yy<=toy;yy++) {
+ int b = 1-data[width*yy+xx];
+ int weight=256;
+ if(xx==fromx) weight = (weight*xweight1)/256;
+ if(xx==tox) weight = (weight*xweight2)/256;
+ if(yy==fromy) weight = (weight*yweight1)/256;
+ if(yy==toy) weight = (weight*yweight2)/256;
+ a+=b*weight;
+ }
+ //if(a) a=(palettesize-1)*r/blocksize;
+ newdata[y*newwidth+x] = (a*blocksize)/r;
+ py = ey;
+ }
+ px = ex;
+ }
+ return newdata;
+}
+
void SWFOutputDev::drawGeneralImage(GfxState *state, Object *ref, Stream *str,
int width, int height, GfxImageColorMap*colorMap, GBool invert,
GBool inlineImg, int mask)
int xid = 0;
int yid = 0;
int x,y;
- int width2 = (width+3)&(~3);
- unsigned char*pic = new unsigned char[width2*height];
+ unsigned char*pic = new unsigned char[width*height];
RGBA pal[256];
GfxRGB rgb;
state->getFillRGB(&rgb);
+ memset(pal,255,sizeof(pal));
pal[0].r = (int)(rgb.r*255); pal[0].g = (int)(rgb.g*255);
pal[0].b = (int)(rgb.b*255); pal[0].a = 255;
pal[1].r = 0; pal[1].g = 0; pal[1].b = 0; pal[1].a = 0;
+ int numpalette = 2;
xid += pal[1].r*3 + pal[1].g*11 + pal[1].b*17;
yid += pal[1].r*7 + pal[1].g*5 + pal[1].b*23;
+ int realwidth = (int)sqrt(SQR(x2-x3) + SQR(y2-y3));
+ int realheight = (int)sqrt(SQR(x1-x2) + SQR(y1-y2));
for (y = 0; y < height; ++y)
for (x = 0; x < width; ++x)
{
imgStr->getPixel(buf);
- // if(invert) buf[0]=255-buf[0]?
+ if(invert)
+ buf[0]=1-buf[0];
pic[width*y+x] = buf[0];
xid+=x*buf[0]+1;
- yid+=y*buf[0]+1;
+ yid+=y*buf[0]*3+1;
+ }
+
+ /* the size of the drawn image is added to the identifier
+ as the same image may require different bitmaps if displayed
+ at different sizes (due to antialiasing): */
+ if(type3active) {
+ xid += realwidth;
+ yid += realheight;
}
int t,found = -1;
for(t=0;t<picpos;t++)
{
if(pic_xids[t] == xid &&
pic_yids[t] == yid) {
+ /* if the image was antialiased, the size has changed: */
+ width = pic_width[t];
+ height = pic_height[t];
found = t;break;
}
}
if(found<0) {
- pic_ids[picpos] = swfoutput_drawimagelossless256(&output, pic, pal, width, height,
- x1,y1,x2,y2,x3,y3,x4,y4);
+ if(type3active) {
+ numpalette = 16;
+ unsigned char*pic2 = 0;
+
+ pic2 = antialize(pic,width,height,realwidth,realheight, numpalette);
+
+ if(pic2) {
+ width = realwidth;
+ height = realheight;
+ free(pic);
+ pic = pic2;
+ /* make a black/white palette */
+ int t;
+ GfxRGB rgb2;
+ rgb2.r = 1 - rgb.r;
+ rgb2.g = 1 - rgb.g;
+ rgb2.b = 1 - rgb.b;
+
+ float r = 255/(numpalette-1);
+ for(t=0;t<numpalette;t++) {
+ /*pal[t].r = (U8)(t*r*rgb.r+(numpalette-1-t)*r*rgb2.r);
+ pal[t].g = (U8)(t*r*rgb.g+(numpalette-1-t)*r*rgb2.g);
+ pal[t].b = (U8)(t*r*rgb.b+(numpalette-1-t)*r*rgb2.b);
+ pal[t].a = 255; */
+ pal[t].r = (U8)(255*rgb.r);
+ pal[t].g = (U8)(255*rgb.g);
+ pal[t].b = (U8)(255*rgb.b);
+ pal[t].a = (U8)(t*r);
+ }
+ }
+ }
+ pic_ids[picpos] = swfoutput_drawimagelosslessN(&output, pic, pal, width, height,
+ x1,y1,x2,y2,x3,y3,x4,y4, numpalette);
pic_xids[picpos] = xid;
pic_yids[picpos] = yid;
+ pic_width[picpos] = width;
+ pic_height[picpos] = height;
if(picpos<1024)
picpos++;
} else {
x1,y1,x2,y2,x3,y3,x4,y4);
pic_xids[picpos] = xid;
pic_yids[picpos] = yid;
+ pic_width[picpos] = width;
+ pic_height[picpos] = height;
if(picpos<1024)
picpos++;
} else {
}
}
if(found<0) {
- pic_ids[picpos] = swfoutput_drawimagelossless256(&output, pic, pal, width, height,
- x1,y1,x2,y2,x3,y3,x4,y4);
+ pic_ids[picpos] = swfoutput_drawimagelosslessN(&output, pic, pal, width, height,
+ x1,y1,x2,y2,x3,y3,x4,y4,256);
pic_xids[picpos] = xid;
pic_yids[picpos] = yid;
+ pic_width[picpos] = width;
+ pic_height[picpos] = height;
if(picpos<1024)
picpos++;
} else {
gMemReport(stderr);
}
+
git.asbjorn.biz / swftools.git / blobdiff