Diffstat (limited to 'core/multimedia/opieplayer/libflash/graphic16.cc') (more/less context) (ignore whitespace changes)
| -rw-r--r-- | core/multimedia/opieplayer/libflash/graphic16.cc | 658 |
1 files changed, 658 insertions, 0 deletions
diff --git a/core/multimedia/opieplayer/libflash/graphic16.cc b/core/multimedia/opieplayer/libflash/graphic16.cc new file mode 100644 index 0000000..24d0c20 --- a/dev/null +++ b/core/multimedia/opieplayer/libflash/graphic16.cc @@ -0,0 +1,658 @@ +//////////////////////////////////////////////////////////// +// Flash Plugin and Player +// Copyright (C) 1998 Olivier Debon +// +// 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 the Free Software Foundation; either version 2 +// of the License, or (at your option) any later version. +// +// This program 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 this program; if not, write to the Free Software +// Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. +// +/////////////////////////////////////////////////////////////// +// Author : Olivier Debon <odebon@club-internet.fr> +// + +#include "swf.h" + +#include "graphic16.h" + +extern unsigned char SQRT[]; + +#define FULL_AA + +#define PRINT 0 + +typedef unsigned short TYPE; + +GraphicDevice16::GraphicDevice16(FlashDisplay *fd) : GraphicDevice(fd) +{ +} + +long +GraphicDevice16::allocColor(Color color) +{ + return (color.red >> 3)<<11 | (color.green>>2)<<5 | (color.blue>>3); +} + +void +GraphicDevice16::clearCanvas() +{ + TYPE pixel; + TYPE *point,*p; + long h, w,n; + + if (!bgInitialized) return; + + pixel = allocColor(backgroundColor); + + point = (TYPE *)(canvasBuffer + clip_rect.ymin * bpl) + clip_rect.xmin; + w = clip_rect.xmax - clip_rect.xmin; + h = clip_rect.ymax - clip_rect.ymin; + + while (h--) { + p = point; + n = w; + while (n--) { + *p++ = pixel; + } + + point = (TYPE *)((char *)point + bpl); + } + + flashDisplay->flash_refresh = 1; + flashDisplay->clip_x = clip_rect.xmin; + flashDisplay->clip_y = clip_rect.ymin; + flashDisplay->clip_width = clip_rect.xmax-clip_rect.xmin; + flashDisplay->clip_height = clip_rect.ymax-clip_rect.ymin; +} + +#define RED_MASK 0xF800 +#define GREEN_MASK 0x07E0 +#define BLUE_MASK 0x001F + +/* alpha = 0 : select c1, alpha = 255 select c2 */ +static inline unsigned long +mix_alpha(unsigned long c1, + unsigned long c2, int alpha) +{ + long r1,r2,r; + long g1,g2,g; + long b1,b2,b; + + r1 = c1 & RED_MASK; + r2 = c2 & RED_MASK; + r = (((r2-r1)*alpha + r1 * 256) >> 8) & RED_MASK; + + g1 = c1 & GREEN_MASK; + g2 = c2 & GREEN_MASK; + g = (((g2-g1)*alpha + g1 * 256) >> 8) & GREEN_MASK; + + b1 = c1 & BLUE_MASK; + b2 = c2 & BLUE_MASK; + b = (((b2-b1)*alpha + b1 * 256) >> 8) & BLUE_MASK; + + return (r|g|b); +} + +void +GraphicDevice16::fillLineAA(FillStyleDef *f, long y, long start, long end) +{ + register long n; + TYPE *line; + TYPE *point,pixel; + unsigned int alpha, start_alpha,end_alpha; + + if (clip(y,start,end)) return; + + line = (TYPE *)(canvasBuffer + bpl*y); + + alpha = f->color.alpha; + pixel = f->color.pixel; + + if (alpha == ALPHA_OPAQUE) { + + start_alpha = 255 - ((start & (FRAC-1)) << (8-FRAC_BITS)); + end_alpha = (end & (FRAC-1)) << (8-FRAC_BITS); + + start >>= FRAC_BITS; + end >>= FRAC_BITS; + + point = &line[start]; + + if (start == end) { + *point = mix_alpha(*point, pixel, start_alpha + end_alpha - 255); + } else { + n = end-start; + if (start_alpha < 255) { + *point = mix_alpha(*point, pixel, start_alpha); + point++; + n--; + } + while (n > 0) { + *point = pixel; + point++; + n--; + } + if (end_alpha > 0) { + *point = mix_alpha(*point, pixel, end_alpha); + } + } + } else { + + start_alpha = 255 - ((start & (FRAC-1)) << (8-FRAC_BITS)); + end_alpha = (end & (FRAC-1)) << (8-FRAC_BITS); + + start >>= FRAC_BITS; + end >>= FRAC_BITS; + + point = &line[start]; + + if (start == end) { + *point = mix_alpha(*point, pixel, + ((start_alpha + end_alpha - 255) * alpha) >> 8); + } else { + n = end-start; + if (start_alpha < 255) { + *point = mix_alpha(*point, pixel, (start_alpha * alpha) >> 8); + point++; + n--; + } + while (n > 0) { + *point = mix_alpha(*point, pixel, alpha); + point++; + n--; + } + if (end_alpha > 0) { + *point = mix_alpha(*point, pixel, (end_alpha * alpha) >> 8); + } + } + } +} + +void +GraphicDevice16::fillLine(FillStyleDef *f, long y, long start, long end) +{ + register long n; + TYPE *line,*point; + TYPE pixel; + unsigned int alpha; + + if (clip(y,start,end)) return; + + start >>= FRAC_BITS; + end >>= FRAC_BITS; + + line = (TYPE *)(canvasBuffer + bpl*y); + point = &line[start]; + n = end-start; + pixel = f->color.pixel; + alpha = f->color.alpha; + if (alpha == ALPHA_OPAQUE) { + while (n--) { + *point = pixel; + point++; + } + } else { + while (n--) { + *point = mix_alpha(*point, pixel, alpha); + point++; + } + } +} + +void +GraphicDevice16::fillLineBitmap(FillStyleDef *f, long y, long start, long end) +{ + int n; + long x1,y1,dx,dy; + Matrix *m = &f->bitmap_matrix; + Bitmap *b = f->bitmap; + unsigned char *pixels; + TYPE *p; + Color *cmap; + long pixbpl; + TYPE pixel; + int offset; + unsigned char *alpha_table; + + /* safety test) */ + if (!b) return; + + if (clip(y,start,end)) return; + + start /= FRAC; + end /= FRAC; + n = end - start; + p = (TYPE *) (this->canvasBuffer + this->bpl*y + start * 2); + + /* the coordinates in the image are normalized to 16 bits */ + x1 = (long) (m->a * start + m->b * y + m->tx); + y1 = (long) (m->c * start + m->d * y + m->ty); + dx = (long) (m->a); + dy = (long) (m->c); + + pixels = b->pixels; + pixbpl = b->bpl; + cmap = f->cmap; + + if (b->alpha_buf == NULL) { + while (n) { + if (x1 >= 0 && y1 >= 0 && + (x1 >> 16) < b->width && (y1 >> 16) < b->height) { + + pixel = cmap[pixels[(y1 >> 16) * pixbpl + (x1 >> 16)]].pixel; + *p = pixel; + } + x1 += dx; + y1 += dy; + p++; + n--; + } + } else if (f->alpha_table) { + alpha_table = f->alpha_table; + while (n) { + if (x1 >= 0 && y1 >= 0 && + (x1 >> 16) < b->width && (y1 >> 16) < b->height) { + + offset = (y1 >> 16) * pixbpl + (x1 >> 16); + pixel = cmap[pixels[offset]].pixel; + *p = mix_alpha(*p, pixel, alpha_table[b->alpha_buf[offset]]); + } + x1 += dx; + y1 += dy; + p++; + n--; + } + } else { + while (n) { + if (x1 >= 0 && y1 >= 0 && + (x1 >> 16) < b->width && (y1 >> 16) < b->height) { + + offset = (y1 >> 16) * pixbpl + (x1 >> 16); + pixel = cmap[pixels[offset]].pixel; + *p = mix_alpha(*p, pixel, b->alpha_buf[offset]); + } + x1 += dx; + y1 += dy; + p++; + n--; + } + } +} + +void +GraphicDevice16::fillLineLG(Gradient *grad, long y, long start, long end) +{ + long dr,r,v,r2; + register long n; + TYPE *line; + TYPE *point; + Color *cp,*ramp; + Matrix *m = &grad->imat; + unsigned int start_alpha,end_alpha; + + if (clip(y,start,end)) return; + + start_alpha = 255 - ((start & (FRAC-1)) << (8-FRAC_BITS)); + end_alpha = (end & (FRAC-1)) << (8-FRAC_BITS); + + start /= FRAC; + end /= FRAC; + + n = end-start; + + r = (long) (m->a * start + m->b * y + m->tx); + dr = (long) (m->a); + + ramp = grad->ramp; + + line = (TYPE *)(canvasBuffer + bpl*y); + point = &line[start]; + + r2 = r + n * dr; + if ( ((r | r2) & ~255) == 0 ) { + if (!grad->has_alpha) { +#ifdef FULL_AA + if (start_alpha < 255) { + v = r>>16; + *point = mix_alpha(*point, (TYPE)ramp[v].pixel, start_alpha); + point++; + r += dr; + n--; + } +#endif /* FULL_AA */ + while (n>0) { + v = r>>16; + *point = (TYPE)ramp[v].pixel; + point++; + r += dr; + n--; + } +#ifdef FULL_AA + if (end_alpha > 0) { + v = r>>16; + *point = mix_alpha(*point, (TYPE)ramp[v].pixel, end_alpha); + } +#endif /* FULL_AA */ + } else { + while (n--) { + v = r>>16; + cp = &ramp[v]; + *point = mix_alpha(*point, cp->pixel, cp->alpha); + point++; + r += dr; + } + } + } else { + if (!grad->has_alpha) { +#ifdef FULL_AA + if (start_alpha < 255) { + v = r>>16; + if (v < 0) v = 0; + else if (v > 255) v = 255; + *point = mix_alpha(*point, (TYPE)ramp[v].pixel, start_alpha); + point++; + r += dr; + n--; + } +#endif /* FULL_AA */ + while (n>0) { + v = r>>16; + if (v < 0) v = 0; + else if (v > 255) v = 255; + *point = (TYPE)ramp[v].pixel; + point++; + r += dr; + n--; + } +#ifdef FULL_AA + if (end_alpha > 0) { + v = r>>16; + if (v < 0) v = 0; + else if (v > 255) v = 255; + *point = mix_alpha(*point, (TYPE)ramp[v].pixel, end_alpha); + } +#endif /* FULL_AA */ + } else { + while (n--) { + v = r>>16; + if (v < 0) v = 0; + else if (v > 255) v = 255; + cp = &ramp[v]; + *point = mix_alpha(*point, cp->pixel, cp->alpha); + point++; + r += dr; + } + } + } +} + +void +GraphicDevice16::fillLineRG(Gradient *grad, long y, long start, long end) +{ + long X,dx,r,Y,dy; + long dist2; + register long n; + Color *cp,*ramp; + TYPE *line; + TYPE *point; + Matrix *m = &grad->imat; + unsigned int start_alpha,end_alpha; + + if (clip(y,start,end)) return; + + start_alpha = 255 - ((start & (FRAC-1)) << (8-FRAC_BITS)); + end_alpha = (end & (FRAC-1)) << (8-FRAC_BITS); + + start /= FRAC; + end /= FRAC; + + n = end-start; + + X = (long) (m->a * start + m->b * y + m->tx); + Y = (long) (m->c * start + m->d * y + m->ty); + dx = (long) (m->a); + dy = (long) (m->c); + + ramp = grad->ramp; + + line = (TYPE *)(canvasBuffer + bpl*y); + point = &line[start]; + + if (!grad->has_alpha) { +#ifdef FULL_AA + if (start == end) { + dist2 = ((X>>16)*(X>>16))+((Y>>16)*(Y>>16)); + if ((unsigned long)dist2 >= 65536) { + r = 255; + } else { + r = SQRT[dist2]; + } + *point = mix_alpha(*point, (TYPE)ramp[r].pixel, start_alpha + end_alpha - 255); + } else { + if (start_alpha < 255) { + dist2 = ((X>>16)*(X>>16))+((Y>>16)*(Y>>16)); + if ((unsigned long)dist2 >= 65536) { + r = 255; + } else { + r = SQRT[dist2]; + } + *point = mix_alpha(*point, (TYPE)ramp[r].pixel, start_alpha); + point++; + X += dx; + Y += dy; + n--; + } +#endif /* FULL_AA */ + while (n>0) { + dist2 = ((X>>16)*(X>>16))+((Y>>16)*(Y>>16)); + if ((unsigned long)dist2 >= 65536) { + r = 255; + } else { + r= SQRT[dist2]; + } + *point = (TYPE)ramp[r].pixel; + point++; + X += dx; + Y += dy; + n--; + } +#ifdef FULL_AA + if (end_alpha > 0) { + dist2 = ((X>>16)*(X>>16))+((Y>>16)*(Y>>16)); + if ((unsigned long)dist2 >= 65536) { + r = 255; + } else { + r= SQRT[dist2]; + } + *point = mix_alpha(*point, (TYPE)ramp[r].pixel, end_alpha); + } + } +#endif /* FULL_AA */ + + } else { + while (n--) { + dist2 = ((X>>16)*(X>>16))+((Y>>16)*(Y>>16)); + if ((unsigned long)dist2 >= 65536) { + r = 255; + } else { + r= SQRT[dist2]; + } + cp = &ramp[r]; + *point = mix_alpha(*point, cp->pixel, cp->alpha); + point++; + X += dx; + Y += dy; + } + } +} + +void +GraphicDevice16::drawLine(long x1, long y1, long x2, long y2, long width) +{ + int n,adr,dx,dy,sx,color; + register int a; + register TYPE *pp; + int alpha; + + x1 = (x1) >> FRAC_BITS; + y1 = (y1) >> FRAC_BITS; + x2 = (x2) >> FRAC_BITS; + y2 = (y2) >> FRAC_BITS; + + if (y1 > y2 || (y1 == y2 && x1 > x2)) { + long tmp; + + tmp=x1; + x1=x2; + x2=tmp; + + tmp=y1; + y1=y2; + y2=tmp; + } + + if (y1 == y2 && (y1 < clip_rect.ymin || y1 > clip_rect.ymax)) return; + if (x1 == x2 && (x1 < clip_rect.xmin || x1 > clip_rect.xmax)) return; + if (x1 == x2 && y1 == y2) return; // Bad !!! + + if (y1 < clip_rect.ymin && y1 != y2) { + x1 += (x2-x1)*(clip_rect.ymin-y1)/(y2-y1); + y1 = clip_rect.ymin; + } + + if (y2 > clip_rect.ymax && y1 != y2) { + x2 -= (x2-x1)*(y2-clip_rect.ymax)/(y2-y1); + y2 = clip_rect.ymax; + } + + if (x1 < x2) { + if (x1 < clip_rect.xmin && x1 != x2) { + y1 += (y2-y1)*(clip_rect.xmin-x1)/(x2-x1); + x1 = clip_rect.xmin; + } + + if (x2 > clip_rect.xmax && x1 != x2) { + y2 -= (y2-y1)*(x2-clip_rect.xmax)/(x2-x1); + x2 = clip_rect.xmax; + } + } + + if (x1 > x2) { + if (x2 < clip_rect.xmin && x2 != x1) { + y2 -= (y2-y1)*(clip_rect.xmin-x2)/(x1-x2); + x2 = clip_rect.xmin; + } + + if (x1 > clip_rect.xmax && x2 != x1) { + y1 += (y2-y1)*(x1-clip_rect.xmax)/(x1-x2); + x1 = clip_rect.xmax; + } + } + + // Check again + if (x1 == x2 && y1 == y2) return; + if (x1 < clip_rect.xmin || x2 < clip_rect.xmin) return; + if (y1 < clip_rect.ymin || y2 < clip_rect.ymin) return; + if (x1 > clip_rect.xmax || x2 > clip_rect.xmax) return; + if (y1 > clip_rect.ymax || y2 > clip_rect.ymax) return; + + sx=bpl >> 1; + adr=(y1 * sx + x1); + pp = (TYPE *)canvasBuffer + adr; + + dx = x2 - x1; + dy = y2 - y1; + + color = allocColor(foregroundColor); + alpha = foregroundColor.alpha; + + if (alpha == ALPHA_OPAQUE) { + +#define PUTPIXEL() \ + { \ + *pp=color; \ + } + +#define DRAWLINE(dx,dy,inc_1,inc_2) \ + n=dx;\ + a=2*dy-dx;\ + dy=2*dy;\ + dx=2*dx-dy;\ + do {\ + PUTPIXEL();\ + if (a>0) { pp+=(inc_1); a-=dx; }\ + else { pp+=(inc_2); a+=dy; }\ + } while (--n >= 0); + +/* fin macro */ + + if (dx == 0 && dy == 0) { + PUTPIXEL(); + } else if (dx > 0) { + if (dx >= dy) { + DRAWLINE(dx, dy, sx + 1, 1); + } else { + DRAWLINE(dy, dx, sx + 1, sx); + } + } else { + dx = -dx; + if (dx >= dy) { + DRAWLINE(dx, dy, sx - 1, -1); + } else { + DRAWLINE(dy, dx, sx - 1, sx); + } + } + + +#undef DRAWLINE +#undef PUTPIXEL + } else { +#define PUTPIXEL() \ + { \ + *pp=mix_alpha(*pp,color,alpha); \ + } + +#define DRAWLINE(dx,dy,inc_1,inc_2) \ + n=dx;\ + a=2*dy-dx;\ + dy=2*dy;\ + dx=2*dx-dy;\ + do {\ + PUTPIXEL();\ + if (a>0) { pp+=(inc_1); a-=dx; }\ + else { pp+=(inc_2); a+=dy; }\ + } while (--n >= 0); + +/* fin macro */ + + if (dx == 0 && dy == 0) { + PUTPIXEL(); + } else if (dx > 0) { + if (dx >= dy) { + DRAWLINE(dx, dy, sx + 1, 1); + } else { + DRAWLINE(dy, dx, sx + 1, sx); + } + } else { + dx = -dx; + if (dx >= dy) { + DRAWLINE(dx, dy, sx - 1, -1); + } else { + DRAWLINE(dy, dx, sx - 1, sx); + } + } + + +#undef DRAWLINE +#undef PUTPIXEL + } +} |