-/* gfxdevice_bitmap.cc
+/* render.c
Part of the swftools package.
- Copyright (c) 2005 Matthias Kramm <kramm@quiss.org>
+ Copyright (c) 2005/2006/2007 Matthias Kramm <kramm@quiss.org>
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
} renderline_t;
typedef struct _internal_result {
- int width;
- int height;
- RGBA* img;
+ gfximage_t img;
struct _internal_result*next;
} internal_result_t;
typedef struct _clipbuffer {
U32*data;
- int linesize;
- struct _clipbuffer*prev;
+ struct _clipbuffer*next;
} clipbuffer_t;
typedef struct _internal {
int height;
int width2;
int height2;
+ int bitwidth;
int multiply;
int antialize;
+ int zoom;
int ymin, ymax;
- int depth;
-
RGBA* img;
- int* zbuf;
- gfxfont_t*font;
- char*fontid;
-
- clipbuffer_t*clipbufs;
clipbuffer_t*clipbuf;
renderline_t*lines;
#define PI 3.14159265358979
static void add_solidline(gfxdevice_t*dev, double x1, double y1, double x2, double y2, double width)
{
+ /* TODO: handle cap styles */
+
internal_t*i = (internal_t*)dev->internal;
double dx = x2-x1;
gfxmatrix_t*m = info->matrix;
gfximage_t*b = info->image;
+ if(!b->width || !b->height) {
+ gfxcolor_t red = {255,255,0,0};
+ fill_line_solid(line, z, y, x1, x2, red);
+ return;
+ }
+
double det = m->m00*m->m11 - m->m01*m->m10;
if(fabs(det) < 0.0005) {
/* x direction equals y direction- the image is invisible */
return;
}
det = 1.0/det;
+ double xx1 = ( (-m->tx) * m->m11 - (y - m->ty) * m->m10) * det;
+ double yy1 = (- (-m->tx) * m->m01 + (y - m->ty) * m->m00) * det;
+ double xinc1 = m->m11 * det;
+ double yinc1 = m->m01 * det;
- if(!b->width || !b->height) {
- gfxcolor_t red = {255,255,0,0};
- fill_line_solid(line, z, y, x1, x2, red);
- return;
- }
-
U32 bit = 1<<(x1&31);
int bitpos = (x1/32);
do {
if(z[bitpos]&bit) {
RGBA col;
- int xx = (int)(( (x - m->tx) * m->m11 - (y - m->ty) * m->m10)*det);
- int yy = (int)((- (x - m->tx) * m->m01 + (y - m->ty) * m->m00)*det);
+ int xx = (int)(xx1 + x * xinc1);
+ int yy = (int)(yy1 - x * yinc1);
int ainv;
if(info->clip) {
col = b->data[yy*b->width+xx];
ainv = 255-col.a;
+ /* needs bitmap with premultiplied alpha */
line[x].r = ((line[x].r*ainv)>>8)+col.r;
line[x].g = ((line[x].g*ainv)>>8)+col.g;
line[x].b = ((line[x].b*ainv)>>8)+col.b;
for(y=i->ymin;y<=i->ymax;y++) {
renderpoint_t*points = i->lines[y].points;
RGBA*line = &i->img[i->width2*y];
- int*zline = &i->zbuf[i->width2*y];
+ U32*zline = &i->clipbuf->data[i->bitwidth*y];
+
int n;
int num = i->lines[y].num;
int lastx;
if(endx == i->width2)
break;
}
+ if(fill->type == filltype_clip) {
+ if(i->clipbuf->next) {
+ U32*line2 = &i->clipbuf->next->data[i->bitwidth*y];
+ int x;
+ for(x=0;x<i->bitwidth;x++)
+ zline[x] &= line2[x];
+ }
+ }
+
i->lines[y].num = 0;
}
}
internal_t*i = (internal_t*)dev->internal;
if(!strcmp(key, "antialize")) {
i->antialize = atoi(value);
+ i->zoom = i->antialize * i->multiply;
} else if(!strcmp(key, "multiply")) {
i->multiply = atoi(value);
+ i->zoom = i->antialize * i->multiply;
+ fprintf(stderr, "Warning: multiply not implemented yet\n");
}
return 0;
}
internal_t*i = (internal_t*)dev->internal;
clipbuffer_t*c = rfx_calloc(sizeof(clipbuffer_t));
- c->linesize = ((i->width2+31) / 32);
- c->data = rfx_calloc(c->linesize * i->height2);
-
- if(!i->clipbufs) {
- i->clipbufs = i->clipbuf = c;
- } else {
- clipbuffer_t*old = i->clipbuf;
- i->clipbuf = c;
- i->clipbuf->prev = old;
- }
+ c->data = rfx_calloc(sizeof(U32) * i->bitwidth * i->height2);
+ c->next = i->clipbuf;
+ i->clipbuf = c;
+ if(c->next)
+ memcpy(c->data, c->next->data, i->bitwidth*i->height2);
+ else
+ memset(c->data, 0, sizeof(U32)*i->bitwidth*i->height2);
}
void endclip(struct _gfxdevice*dev)
{
internal_t*i = (internal_t*)dev->internal;
- if(!i->clipbufs) {
+ if(!i->clipbuf) {
fprintf(stderr, "endclip without any active clip buffers");
return;
}
-
- clipbuffer_t*old = i->clipbuf;
-
- if(i->clipbuf == i->clipbufs)
- i->clipbufs = 0;
- i->clipbuf = i->clipbuf->prev;
-
- old->prev = 0;
- free(old->data);old->data = 0;
- free(old);
+ clipbuffer_t*c = i->clipbuf;
+ i->clipbuf = i->clipbuf->next;
+ c->next = 0;
+ free(c->data);c->data = 0;
+ free(c);
}
void render_stroke(struct _gfxdevice*dev, gfxline_t*line, gfxcoord_t width, gfxcolor_t*color, gfx_capType cap_style, gfx_joinType joint_style, gfxcoord_t miterLimit)
if(line->type == gfx_moveTo) {
} else if(line->type == gfx_lineTo) {
- double x1=x,y1=y;
- double x3=line->x,y3=line->y;
+ double x1=x*i->zoom,y1=y*i->zoom;
+ double x3=line->x*i->zoom,y3=line->y*i->zoom;
add_solidline(dev, x1, y1, x3, y3, width * i->multiply);
fill_solid(dev, color);
} else if(line->type == gfx_splineTo) {
int c,t,parts,qparts;
double xx,yy;
- double x1=x,y1=y;
- double x2=line->sx,y2=line->sy;
- double x3=line->x,y3=line->y;
+ double x1=x*i->zoom,y1=y*i->zoom;
+ double x2=line->sx*i->zoom,y2=line->sy*i->zoom;
+ double x3=line->x*i->zoom,y3=line->y*i->zoom;
c = abs(x3-2*x2+x1) + abs(y3-2*y2+y1);
xx=x1;
if(line->type == gfx_moveTo) {
} else if(line->type == gfx_lineTo) {
- double x1=x,y1=y;
- double x3=line->x,y3=line->y;
+ double x1=x*i->zoom,y1=y*i->zoom;
+ double x3=line->x*i->zoom,y3=line->y*i->zoom;
add_line(dev, x1, y1, x3, y3);
} else if(line->type == gfx_splineTo) {
int c,t,parts,qparts;
double xx,yy;
- double x1=x,y1=y;
- double x2=line->sx,y2=line->sy;
- double x3=line->x,y3=line->y;
+ double x1=x*i->zoom,y1=y*i->zoom;
+ double x2=line->sx*i->zoom,y2=line->sy*i->zoom;
+ double x3=line->x*i->zoom,y3=line->y*i->zoom;
c = abs(x3-2*x2+x1) + abs(y3-2*y2+y1);
xx=x1;
gfxcolor_t black = {255,0,0,0};
+ gfxmatrix_t m2 = *matrix;
+
draw_line(dev, line);
fillinfo_t info;
info.type = filltype_bitmap;
info.image = img;
- info.matrix = matrix;
+ info.matrix = &m2;
info.cxform = cxform;
+
+ m2.m00 *= i->zoom; m2.m01 *= i->zoom; m2.tx *= i->zoom;
+ m2.m10 *= i->zoom; m2.m11 *= i->zoom; m2.ty *= i->zoom;
+
fill(dev, &info);
}
{
internal_result_t*i= (internal_result_t*)r->internal;
}
-int render_result_save(gfxresult_t*r, char*filename)
+int render_result_save(gfxresult_t*r, char*filename)
{
internal_result_t*i= (internal_result_t*)r->internal;
if(i->next) {
int nr=0;
while(i->next) {
- writePNG(filename, (unsigned char*)i->img, i->width, i->height);
+ writePNG(filename, (unsigned char*)i->img.data, i->img.width, i->img.height);
nr++;
}
} else {
- writePNG(filename, (unsigned char*)i->img, i->width, i->height);
+ writePNG(filename, (unsigned char*)i->img.data, i->img.width, i->img.height);
}
return 1;
}
void*render_result_get(gfxresult_t*r, char*name)
{
internal_result_t*i= (internal_result_t*)r->internal;
+ if(!strncmp(name,"page",4)) {
+ int pagenr = atoi(&name[4]);
+ if(pagenr<0)
+ return 0;
+ while(pagenr>0) {
+ i = i->next;
+ if(!i)
+ return 0;
+ }
+ return &i->img;
+ }
return 0;
}
void render_result_destroy(gfxresult_t*r)
{
internal_result_t*i= (internal_result_t*)r->internal;
- free(i); r->internal = 0;
+ r->internal = 0;
+ while(i) {
+ internal_result_t*next = i->next;
+ free(i->img.data);i->img.data = 0;
+ free(i);
+ i = next;
+ }
free(r);
}
free(dev->internal); dev->internal = 0; i = 0;
- /* TODO: free fonts */
-
return res;
}
exit(1);
}
- i->width = width;
- i->height = height;
- i->width2 = width*i->antialize*i->multiply;
- i->height2 = height*i->antialize*i->multiply;
+ i->width = width*i->multiply;
+ i->height = height*i->multiply;
+ i->width2 = width*i->zoom;
+ i->height2 = height*i->zoom;
+ i->bitwidth = (i->width2+31)/32;
i->lines = (renderline_t*)rfx_alloc(i->height2*sizeof(renderline_t));
for(y=0;y<i->height2;y++) {
i->lines[y].points = 0;
i->lines[y].num = 0;
}
- i->zbuf = (int*)rfx_calloc(sizeof(int)*i->width2*i->height2);
i->img = (RGBA*)rfx_calloc(sizeof(RGBA)*i->width2*i->height2);
i->ymin = 0x7fffffff;
i->ymax = -0x80000000;
+
+ /* initialize initial clipping field, which doesn't clip anything yet */
newclip(dev);
+ memset(i->clipbuf->data, 255, sizeof(U32)*i->bitwidth*i->height2);
+}
+
+static void store_image(internal_t*i, internal_result_t*ir)
+{
+ ir->img.data = malloc(i->width*i->height*sizeof(RGBA));
+ ir->img.width = i->width;
+ ir->img.height = i->height;
+
+ gfxcolor_t*dest = ir->img.data;
+
+ if(i->antialize <= 1) /* no antializing */ {
+ int y;
+ for(y=0;y<i->height;y++) {
+ RGBA*line = &i->img[y*i->width];
+ memcpy(&dest[y*i->width], line, sizeof(RGBA)*i->width);
+ }
+ } else {
+ RGBA**lines = (RGBA**)rfx_calloc(sizeof(RGBA*)*i->antialize);
+ int q = i->antialize*i->antialize;
+ int ypos = 0;
+ int y;
+ int y2=0;
+ for(y=0;y<i->height2;y++) {
+ int n;
+ ypos = y % i->antialize;
+ lines[ypos] = &i->img[y*i->width2];
+ if(ypos == i->antialize-1) {
+ RGBA*out = &dest[(y2++)*i->width];
+ int x;
+ int r,g,b,a;
+ for(x=0;x<i->width;x++) {
+ int xpos = x*i->antialize;
+ int yp;
+ U32 r=0,g=0,b=0,a=0;
+ for(yp=0;yp<i->antialize;yp++) {
+ RGBA*lp = &lines[yp][xpos];
+ int xp;
+ for(xp=0;xp<i->antialize;xp++) {
+ RGBA*p = &lp[xp];
+ r += p->r;
+ g += p->g;
+ b += p->b;
+ a += p->a;
+ }
+ }
+ out[x].r = r / q;
+ out[x].g = g / q;
+ out[x].b = b / q;
+ out[x].a = a / q;
+ }
+ }
+ }
+ rfx_free(lines);
+ }
}
void render_endpage(struct _gfxdevice*dev)
}
endclip(dev);
- while(i->clipbufs) {
+ while(i->clipbuf) {
fprintf(stderr, "Warning: unclosed clip while processing endpage()\n");
endclip(dev);
}
internal_result_t*ir= (internal_result_t*)rfx_calloc(sizeof(internal_result_t));
- ir->width = i->width;
- ir->height = i->height;
- ir->img = i->img; i->img = 0;
+
+ int y,x;
+
+ store_image(i, ir);
+
ir->next = 0;
if(i->result_next) {
i->result_next->next = ir;
}
i->result_next = ir;
- rfx_free(i->lines);i->lines=0; //FIXME
- rfx_free(i->zbuf);i->zbuf = 0;
+ for(y=0;y<i->height2;y++) {
+ rfx_free(i->lines[y].points); i->lines[y].points = 0;
+ }
+ rfx_free(i->lines);i->lines=0;
+
if(i->img) {rfx_free(i->img);i->img = 0;}
i->width2 = 0;
internal_t*i = (internal_t*)rfx_calloc(sizeof(internal_t));
int y;
memset(dev, 0, sizeof(gfxdevice_t));
+
+ dev->name = "render";
+
dev->internal = i;
i->width = 0;
i->height2 = 0;
i->antialize = 1;
i->multiply = 1;
+ i->zoom = 1;
dev->setparameter = render_setparameter;
dev->startpage = render_startpage;
git.asbjorn.biz / swftools.git / commitdiff