From 5754cfd26ee645b4bdcb819adbaebeb4094dd8e7 Mon Sep 17 00:00:00 2001 From: fluxgen Date: Sat, 30 Nov 2002 20:07:49 +0000 Subject: moved from BImage class to TextureRender --- src/TextureRender.cc | 1751 ++++++++++++++++++++++++++++++++++++++++++++++++++ src/TextureRender.hh | 91 +++ 2 files changed, 1842 insertions(+) create mode 100644 src/TextureRender.cc create mode 100644 src/TextureRender.hh diff --git a/src/TextureRender.cc b/src/TextureRender.cc new file mode 100644 index 0000000..aeb318f --- /dev/null +++ b/src/TextureRender.cc @@ -0,0 +1,1751 @@ +// TextureRender.cc for fluxbox +// Copyright (c) 2002 Henrik Kinnunen (fluxgen at fluxbox.org) +// +// Permission is hereby granted, free of charge, to any person obtaining a +// copy of this software and associated documentation files (the "Software"), +// to deal in the Software without restriction, including without limitation +// the rights to use, copy, modify, merge, publish, distribute, sublicense, +// and/or sell copies of the Software, and to permit persons to whom the +// Software is furnished to do so, subject to the following conditions: +// +// The above copyright notice and this permission notice shall be included in +// all copies or substantial portions of the Software. +// +// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR +// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, +// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL +// THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER +// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING +// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER +// DEALINGS IN THE SOFTWARE. + +// $Id: TextureRender.cc,v 1.1 2002/11/30 20:07:49 fluxgen Exp $ + +#include "TextureRender.hh" + +#include "ImageControl.hh" +#include "i18n.hh" +#include "App.hh" + +TextureRender::TextureRender(BImageControl &imgctrl, unsigned int w, unsigned int h, + XColor *_colors, size_t num_colors): +control(imgctrl), +colors(_colors), +ncolors(ncolors), +xtable(0), ytable(0) { + + width = ((signed) w > 0) ? w : 1; + height = ((signed) h > 0) ? h : 1; + + red = new unsigned char[width * height]; + green = new unsigned char[width * height]; + blue = new unsigned char[width * height]; + + cpc = imgctrl.colorsPerChannel(); + cpccpc = cpc * cpc; + + imgctrl.colorTables(&red_table, &green_table, &blue_table, + &red_offset, &green_offset, &blue_offset, + &red_bits, &green_bits, &blue_bits); + +} + + +TextureRender::~TextureRender() { + if (red) delete [] red; + if (green) delete [] green; + if (blue) delete [] blue; +} + + +Pixmap TextureRender::render(const FbTk::Texture &texture) { + + if (texture.type() & FbTk::Texture::PARENTRELATIVE) + return ParentRelative; + else if (texture.type() & FbTk::Texture::SOLID) + return renderSolid(texture); + else if (texture.type() & FbTk::Texture::GRADIENT) + return renderGradient(texture); + + return None; +} + + +Pixmap TextureRender::renderSolid(const FbTk::Texture &texture) { + + Display *disp = FbTk::App::instance()->display(); + + Pixmap pixmap = XCreatePixmap(disp, + RootWindow(disp, control.screenNum()), width, + height, control.depth()); + if (pixmap == None) { + fprintf(stderr, + I18n::instance()->getMessage( + FBNLS::ImageSet, FBNLS::ImageErrorCreatingSolidPixmap, + "BImage::render_solid: error creating pixmap\n")); + return None; + } + + XGCValues gcv; + GC gc, hgc, lgc; + + gcv.foreground = texture.color().pixel(); + gcv.fill_style = FillSolid; + gc = XCreateGC(disp, pixmap, GCForeground | GCFillStyle, &gcv); + + gcv.foreground = texture.hiColor().pixel(); + hgc = XCreateGC(disp, pixmap, GCForeground, &gcv); + + gcv.foreground = texture.loColor().pixel(); + lgc = XCreateGC(disp, pixmap, GCForeground, &gcv); + + XFillRectangle(disp, pixmap, gc, 0, 0, width, height); + + using namespace FbTk; + + if (texture.type() & Texture::INTERLACED) { + gcv.foreground = texture.colorTo().pixel(); + GC igc = XCreateGC(disp, pixmap, + GCForeground, &gcv); + + register unsigned int i = 0; + for (; i < height; i += 2) + XDrawLine(disp, pixmap, igc, 0, i, width, i); + + XFreeGC(disp, igc); + } + + if (texture.type() & Texture::BEVEL1) { + if (texture.type() & Texture::RAISED) { + XDrawLine(disp, pixmap, lgc, + 0, height - 1, width - 1, height - 1); + XDrawLine(disp, pixmap, lgc, + width - 1, height - 1, width - 1, 0); + + XDrawLine(disp, pixmap, hgc, + 0, 0, width - 1, 0); + XDrawLine(disp, pixmap, hgc, + 0, height - 1, 0, 0); + } else if (texture.type() & Texture::SUNKEN) { + XDrawLine(disp, pixmap, hgc, + 0, height - 1, width - 1, height - 1); + XDrawLine(disp, pixmap, hgc, + width - 1, height - 1, width - 1, 0); + + XDrawLine(disp, pixmap, lgc, + 0, 0, width - 1, 0); + XDrawLine(disp, pixmap, lgc, + 0, height - 1, 0, 0); + } + } else if (texture.type() & Texture::BEVEL2) { + if (texture.type() & Texture::RAISED) { + XDrawLine(disp, pixmap, lgc, + 1, height - 3, width - 3, height - 3); + XDrawLine(disp, pixmap, lgc, + width - 3, height - 3, width - 3, 1); + + XDrawLine(disp, pixmap, hgc, + 1, 1, width - 3, 1); + XDrawLine(disp, pixmap, hgc, + 1, height - 3, 1, 1); + } else if (texture.type() & Texture::SUNKEN) { + XDrawLine(disp, pixmap, hgc, + 1, height - 3, width - 3, height - 3); + XDrawLine(disp, pixmap, hgc, + width - 3, height - 3, width - 3, 1); + + XDrawLine(disp, pixmap, lgc, + 1, 1, width - 3, 1); + XDrawLine(disp, pixmap, lgc, + 1, height - 3, 1, 1); + } + } + + XFreeGC(disp, gc); + XFreeGC(disp, hgc); + XFreeGC(disp, lgc); + + return pixmap; +} + + +Pixmap TextureRender::renderGradient(const FbTk::Texture &texture) { + + bool inverted = false; + + using namespace FbTk; + + interlaced = texture.type() & Texture::INTERLACED; + + if (texture.type() & Texture::SUNKEN) { + from = &(texture.colorTo()); + to = &(texture.color()); + + if (! (texture.type() & Texture::INVERT)) + inverted = true; + } else { + from = &(texture.color()); + to = &(texture.colorTo()); + + if (texture.type() & Texture::INVERT) + inverted = true; + } + + control.getGradientBuffers(width, height, &xtable, &ytable); + + if (texture.type() & Texture::DIAGONAL) + dgradient(); + else if (texture.type() & Texture::ELLIPTIC) + egradient(); + else if (texture.type() & Texture::HORIZONTAL) + hgradient(); + else if (texture.type() & Texture::PYRAMID) + pgradient(); + else if (texture.type() & Texture::RECTANGLE) + rgradient(); + else if (texture.type() & Texture::VERTICAL) + vgradient(); + else if (texture.type() & Texture::CROSSDIAGONAL) + cdgradient(); + else if (texture.type() & Texture::PIPECROSS) + pcgradient(); + + if (texture.type() & Texture::BEVEL1) + bevel1(); + else if (texture.type() & Texture::BEVEL2) + bevel2(); + + if (inverted) + invert(); + + return renderPixmap(); + +} + + +XImage *TextureRender::renderXImage() { + I18n *i18n = I18n::instance(); + Display *disp = FbTk::App::instance()->display(); + XImage *image = + XCreateImage(disp, + DefaultVisual(disp, control.screenNum()), control.depth(), ZPixmap, 0, 0, + width, height, 32, 0); + + if (! image) { + fprintf(stderr, + i18n-> + getMessage( + FBNLS::ImageSet, FBNLS::ImageErrorCreatingXImage, + "BImage::renderXImage: error creating XImage\n")); + return 0; + } + + image->data = 0; + + unsigned char *d = new unsigned char[image->bytes_per_line * (height + 1)]; + register unsigned int x, y, dithx, dithy, r, g, b, o, er, eg, eb, offset; + + unsigned char *pixel_data = d, *ppixel_data = d; + unsigned long pixel; + + o = image->bits_per_pixel + ((image->byte_order == MSBFirst) ? 1 : 0); + + if (control.doDither() && width > 1 && height > 1) { + unsigned char dither4[4][4] = { + {0, 4, 1, 5}, + {6, 2, 7, 3}, + {1, 5, 0, 4}, + {7, 3, 6, 2} }; + +#ifdef ORDEREDPSEUDO + unsigned char dither8[8][8] = { + { 0, 32, 8, 40, 2, 34, 10, 42 }, + { 48, 16, 56, 24, 50, 18, 58, 26 }, + { 12, 44, 4, 36, 14, 46, 6, 38 }, + { 60, 28, 52, 20, 62, 30, 54, 22 }, + { 3, 35, 11, 43, 1, 33, 9, 41 }, + { 51, 19, 59, 27, 49, 17, 57, 25 }, + { 15, 47, 7, 39, 13, 45, 5, 37 }, + { 63, 31, 55, 23, 61, 29, 53, 21 } }; +#endif // ORDEREDPSEUDO + + switch (control.visual()->c_class) { + case TrueColor: + // algorithm: ordered dithering... many many thanks to rasterman + // (raster@rasterman.com) for telling me about this... portions of this + // code is based off of his code in Imlib + for (y = 0, offset = 0; y < height; y++) { + dithy = y & 0x3; + + for (x = 0; x < width; x++, offset++) { + dithx = x & 0x3; + r = red[offset]; + g = green[offset]; + b = blue[offset]; + + er = r & (red_bits - 1); + eg = g & (green_bits - 1); + eb = b & (blue_bits - 1); + + r = red_table[r]; + g = green_table[g]; + b = blue_table[b]; + + if ((dither4[dithy][dithx] < er) && (r < red_table[255])) r++; + if ((dither4[dithy][dithx] < eg) && (g < green_table[255])) g++; + if ((dither4[dithy][dithx] < eb) && (b < blue_table[255])) b++; + + pixel = (r << red_offset) | (g << green_offset) | (b << blue_offset); + + switch (o) { + case 8: // 8bpp + *pixel_data++ = pixel; + break; + + case 16: // 16bpp LSB + *pixel_data++ = pixel; + *pixel_data++ = pixel >> 8; + break; + + case 17: // 16bpp MSB + *pixel_data++ = pixel >> 8; + *pixel_data++ = pixel; + break; + + case 24: // 24bpp LSB + *pixel_data++ = pixel; + *pixel_data++ = pixel >> 8; + *pixel_data++ = pixel >> 16; + break; + + case 25: // 24bpp MSB + *pixel_data++ = pixel >> 16; + *pixel_data++ = pixel >> 8; + *pixel_data++ = pixel; + break; + + case 32: // 32bpp LSB + *pixel_data++ = pixel; + *pixel_data++ = pixel >> 8; + *pixel_data++ = pixel >> 16; + *pixel_data++ = pixel >> 24; + break; + + case 33: // 32bpp MSB + *pixel_data++ = pixel >> 24; + *pixel_data++ = pixel >> 16; + *pixel_data++ = pixel >> 8; + *pixel_data++ = pixel; + break; + } + } + + pixel_data = (ppixel_data += image->bytes_per_line); + } + + break; + + case StaticColor: + case PseudoColor: { +#ifndef ORDEREDPSEUDO + short *terr, + *rerr = new short[width + 2], + *gerr = new short[width + 2], + *berr = new short[width + 2], + *nrerr = new short[width + 2], + *ngerr = new short[width + 2], + *nberr = new short[width + 2]; + int rr, gg, bb, rer, ger, ber; + int dd = 255 / control.colorsPerChannel(); + + for (x = 0; x < width; x++) { + *(rerr + x) = *(red + x); + *(gerr + x) = *(green + x); + *(berr + x) = *(blue + x); + } + + *(rerr + x) = *(gerr + x) = *(berr + x) = 0; +#endif // ORDEREDPSEUDO + + for (y = 0, offset = 0; y < height; y++) { +#ifdef ORDEREDPSEUDO + dithy = y & 7; + + for (x = 0; x < width; x++, offset++) { + dithx = x & 7; + + r = red[offset]; + g = green[offset]; + b = blue[offset]; + + er = r & (red_bits - 1); + eg = g & (green_bits - 1); + eb = b & (blue_bits - 1); + + r = red_table[r]; + g = green_table[g]; + b = blue_table[b]; + + if ((dither8[dithy][dithx] < er) && (r < red_table[255])) r++; + if ((dither8[dithy][dithx] < eg) && (g < green_table[255])) g++; + if ((dither8[dithy][dithx] < eb) && (b < blue_table[255])) b++; + + pixel = (r * cpccpc) + (g * cpc) + b; + *(pixel_data++) = colors[pixel].pixel; + } + + pixel_data = (ppixel_data += image->bytes_per_line); + } +#else // !ORDEREDPSEUDO + if (y < (height - 1)) { + int i = offset + width; + for (x = 0; x < width; x++, i++) { + *(nrerr + x) = *(red + i); + *(ngerr + x) = *(green + i); + *(nberr + x) = *(blue + i); + } + + *(nrerr + x) = *(red + (--i)); + *(ngerr + x) = *(green + i); + *(nberr + x) = *(blue + i); + } + + for (x = 0; x < width; x++) { + rr = rerr[x]; + gg = gerr[x]; + bb = berr[x]; + + if (rr > 255) rr = 255; else if (rr < 0) rr = 0; + if (gg > 255) gg = 255; else if (gg < 0) gg = 0; + if (bb > 255) bb = 255; else if (bb < 0) bb = 0; + + r = red_table[rr]; + g = green_table[gg]; + b = blue_table[bb]; + + rer = rerr[x] - r*dd; + ger = gerr[x] - g*dd; + ber = berr[x] - b*dd; + + pixel = (r * cpccpc) + (g * cpc) + b; + *pixel_data++ = colors[pixel].pixel; + + r = rer >> 1; + g = ger >> 1; + b = ber >> 1; + rerr[x+1] += r; + gerr[x+1] += g; + berr[x+1] += b; + nrerr[x] += r; + ngerr[x] += g; + nberr[x] += b; + } + + offset += width; + + pixel_data = (ppixel_data += image->bytes_per_line); + + terr = rerr; + rerr = nrerr; + nrerr = terr; + + terr = gerr; + gerr = ngerr; + ngerr = terr; + + terr = berr; + berr = nberr; + nberr = terr; + } + + delete [] rerr; + delete [] gerr; + delete [] berr; + delete [] nrerr; + delete [] ngerr; + delete [] nberr; +#endif // ORDEREDPSUEDO + + } break; + + /* + case StaticGray: + case GrayScale: + for (y = 0, offset = 0; y < height; y++) { + dithy = y & 0x3; + + for (x = 0; x < width; x++, offset++) { + dithx = x & 0x3; + + r = *(red + offset); + g = *(green + offset); + b = *(blue + offset); + + er = r & 0x7; + eg = g & 0x7; + eb = b & 0x7; + + if ((dither[dithy][dithx] < er) && (r < (256 - 8))) + r += 8; + if ((dither[dithy][dithx] < (eg << 1)) && (g < (256 - 4))) + g += 4; + if ((dither[dithy][dithx] < eb) && (b < (256 - 8))) + b += 8; + + r = *(red_table + r); + g = *(green_table + g); + b = *(blue_table + b); + + g = ((r * 30) + (g * 59) + (b * 11)) / 100; + *pixel_data++ = colors[g].pixel; + } + + pixel_data = (ppixel_data += image->bytes_per_line); + } + + break; + */ + + default: + fprintf(stderr, + i18n-> + getMessage( + FBNLS::ImageSet, FBNLS::ImageUnsupVisual, + "BImage::renderXImage: unsupported visual\n")); + delete [] d; + XDestroyImage(image); + return (XImage *) 0; + } + } else { + switch (control.visual()->c_class) { + case StaticColor: + case PseudoColor: + for (y = 0, offset = 0; y < height; y++) { + for (x = 0; x < width; x++, offset++) { + r = red_table[red[offset]]; + g = green_table[green[offset]]; + b = blue_table[blue[offset]]; + + pixel = (r * cpccpc) + (g * cpc) + b; + *pixel_data++ = colors[pixel].pixel; + } + + pixel_data = (ppixel_data += image->bytes_per_line); + } + + break; + + case TrueColor: + for (y = 0, offset = 0; y < height; y++) { + for (x = 0; x < width; x++, offset++) { + r = red_table[red[offset]]; + g = green_table[green[offset]]; + b = blue_table[blue[offset]]; + + pixel = (r << red_offset) | (g << green_offset) | (b << blue_offset); + + switch (o) { + case 8: // 8bpp + *pixel_data++ = pixel; + break; + + case 16: // 16bpp LSB + *pixel_data++ = pixel; + *pixel_data++ = pixel >> 8; + break; + + case 17: // 16bpp MSB + *pixel_data++ = pixel >> 8; + *pixel_data++ = pixel; + break; + + case 24: // 24bpp LSB + *pixel_data++ = pixel; + *pixel_data++ = pixel >> 8; + *pixel_data++ = pixel >> 16; + break; + + case 25: // 24bpp MSB + *pixel_data++ = pixel >> 16; + *pixel_data++ = pixel >> 8; + *pixel_data++ = pixel; + break; + + case 32: // 32bpp LSB + *pixel_data++ = pixel; + *pixel_data++ = pixel >> 8; + *pixel_data++ = pixel >> 16; + *pixel_data++ = pixel >> 24; + break; + + case 33: // 32bpp MSB + *pixel_data++ = pixel >> 24; + *pixel_data++ = pixel >> 16; + *pixel_data++ = pixel >> 8; + *pixel_data++ = pixel; + break; + } + } + + pixel_data = (ppixel_data += image->bytes_per_line); + } + + break; + + case StaticGray: + case GrayScale: + for (y = 0, offset = 0; y < height; y++) { + for (x = 0; x < width; x++, offset++) { + r = *(red_table + *(red + offset)); + g = *(green_table + *(green + offset)); + b = *(blue_table + *(blue + offset)); + + g = ((r * 30) + (g * 59) + (b * 11)) / 100; + *pixel_data++ = colors[g].pixel; + } + + pixel_data = (ppixel_data += image->bytes_per_line); + } + + break; + + default: + fprintf(stderr, + i18n-> + getMessage( + FBNLS::ImageSet, FBNLS::ImageUnsupVisual, + "BImage::renderXImage: unsupported visual\n")); + delete [] d; + XDestroyImage(image); + return (XImage *) 0; + } +} + + image->data = (char *) d; + return image; +} + + +Pixmap TextureRender::renderPixmap() { + Display *disp = FbTk::App::instance()->display(); + I18n *i18n = I18n::instance(); + Pixmap pixmap = + XCreatePixmap(disp, + RootWindow(disp, control.screenNum()), width, height, control.depth()); + + if (pixmap == None) { + fprintf(stderr, + i18n->getMessage( + FBNLS::ImageSet, FBNLS::ImageErrorCreatingPixmap, + "BImage::renderPixmap: error creating pixmap\n")); + return None; + } + + XImage *image = renderXImage(); + + if (! image) { + XFreePixmap(disp, pixmap); + return None; + } else if (! image->data) { + XDestroyImage(image); + XFreePixmap(disp, pixmap); + return None; + } + + XPutImage(disp, pixmap, + DefaultGC(disp, control.screenNum()), + image, 0, 0, 0, 0, width, height); + + if (image->data != 0) { + delete [] image->data; + image->data = 0; + } + + XDestroyImage(image); + + return pixmap; +} + + +void TextureRender::bevel1() { + if (! (width > 2 && height > 2)) + return; + + unsigned char *pr = red, *pg = green, *pb = blue; + + register unsigned char r, g, b, rr ,gg ,bb; + register unsigned int w = width, h = height - 1, wh = w * h; + + while (--w) { + r = *pr; + rr = r + (r >> 1); + if (rr < r) rr = ~0; + g = *pg; + gg = g + (g >> 1); + if (gg < g) gg = ~0; + b = *pb; + bb = b + (b >> 1); + if (bb < b) bb = ~0; + + *pr = rr; + *pg = gg; + *pb = bb; + + r = *(pr + wh); + rr = (r >> 2) + (r >> 1); + if (rr > r) rr = 0; + g = *(pg + wh); + gg = (g >> 2) + (g >> 1); + if (gg > g) gg = 0; + b = *(pb + wh); + bb = (b >> 2) + (b >> 1); + if (bb > b) bb = 0; + + *((pr++) + wh) = rr; + *((pg++) + wh) = gg; + *((pb++) + wh) = bb; + } + + r = *pr; + rr = r + (r >> 1); + if (rr < r) rr = ~0; + g = *pg; + gg = g + (g >> 1); + if (gg < g) gg = ~0; + b = *pb; + bb = b + (b >> 1); + if (bb < b) bb = ~0; + + *pr = rr; + *pg = gg; + *pb = bb; + + r = *(pr + wh); + rr = (r >> 2) + (r >> 1); + if (rr > r) rr = 0; + g = *(pg + wh); + gg = (g >> 2) + (g >> 1); + if (gg > g) gg = 0; + b = *(pb + wh); + bb = (b >> 2) + (b >> 1); + if (bb > b) bb = 0; + + *(pr + wh) = rr; + *(pg + wh) = gg; + *(pb + wh) = bb; + + pr = red + width; + pg = green + width; + pb = blue + width; + + while (--h) { + r = *pr; + rr = r + (r >> 1); + if (rr < r) rr = ~0; + g = *pg; + gg = g + (g >> 1); + if (gg < g) gg = ~0; + b = *pb; + bb = b + (b >> 1); + if (bb < b) bb = ~0; + + *pr = rr; + *pg = gg; + *pb = bb; + + pr += width - 1; + pg += width - 1; + pb += width - 1; + + r = *pr; + rr = (r >> 2) + (r >> 1); + if (rr > r) rr = 0; + g = *pg; + gg = (g >> 2) + (g >> 1); + if (gg > g) gg = 0; + b = *pb; + bb = (b >> 2) + (b >> 1); + if (bb > b) bb = 0; + + *(pr++) = rr; + *(pg++) = gg; + *(pb++) = bb; + } + + r = *pr; + rr = r + (r >> 1); + if (rr < r) rr = ~0; + g = *pg; + gg = g + (g >> 1); + if (gg < g) gg = ~0; + b = *pb; + bb = b + (b >> 1); + if (bb < b) bb = ~0; + + *pr = rr; + *pg = gg; + *pb = bb; + + pr += width - 1; + pg += width - 1; + pb += width - 1; + + r = *pr; + rr = (r >> 2) + (r >> 1); + if (rr > r) rr = 0; + g = *pg; + gg = (g >> 2) + (g >> 1); + if (gg > g) gg = 0; + b = *pb; + bb = (b >> 2) + (b >> 1); + if (bb > b) bb = 0; + + *pr = rr; + *pg = gg; + *pb = bb; +} + + +void TextureRender::bevel2() { + if (! (width > 4 && height > 4)) + return; + + unsigned char r, g, b, rr ,gg ,bb, *pr = red + width + 1, + *pg = green + width + 1, *pb = blue + width + 1; + unsigned int w = width - 2, h = height - 1, wh = width * (height - 3); + + while (--w) { + r = *pr; + rr = r + (r >> 1); + if (rr < r) rr = ~0; + g = *pg; + gg = g + (g >> 1); + if (gg < g) gg = ~0; + b = *pb; + bb = b + (b >> 1); + if (bb < b) bb = ~0; + + *pr = rr; + *pg = gg; + *pb = bb; + + r = *(pr + wh); + rr = (r >> 2) + (r >> 1); + if (rr > r) rr = 0; + g = *(pg + wh); + gg = (g >> 2) + (g >> 1); + if (gg > g) gg = 0; + b = *(pb + wh); + bb = (b >> 2) + (b >> 1); + if (bb > b) bb = 0; + + *((pr++) + wh) = rr; + *((pg++) + wh) = gg; + *((pb++) + wh) = bb; + } + + pr = red + width; + pg = green + width; + pb = blue + width; + + while (--h) { + r = *pr; + rr = r + (r >> 1); + if (rr < r) rr = ~0; + g = *pg; + gg = g + (g >> 1); + if (gg < g) gg = ~0; + b = *pb; + bb = b + (b >> 1); + if (bb < b) bb = ~0; + + *(++pr) = rr; + *(++pg) = gg; + *(++pb) = bb; + + pr += width - 3; + pg += width - 3; + pb += width - 3; + + r = *pr; + rr = (r >> 2) + (r >> 1); + if (rr > r) rr = 0; + g = *pg; + gg = (g >> 2) + (g >> 1); + if (gg > g) gg = 0; + b = *pb; + bb = (b >> 2) + (b >> 1); + if (bb > b) bb = 0; + + *(pr++) = rr; + *(pg++) = gg; + *(pb++) = bb; + + pr++; pg++; pb++; + } +} + + +void TextureRender::invert() { + register unsigned int i, j, wh = (width * height) - 1; + unsigned char tmp; + + for (i = 0, j = wh; j > i; j--, i++) { + tmp = *(red + j); + *(red + j) = *(red + i); + *(red + i) = tmp; + + tmp = *(green + j); + *(green + j) = *(green + i); + *(green + i) = tmp; + + tmp = *(blue + j); + *(blue + j) = *(blue + i); + *(blue + i) = tmp; + } +} + + +void TextureRender::dgradient() { + // diagonal gradient code was written by Mike Cole + // modified for interlacing by Brad Hughes + + float drx, dgx, dbx, dry, dgy, dby, yr = 0.0, yg = 0.0, yb = 0.0, + xr = (float) from->red(), + xg = (float) from->green(), + xb = (float) from->blue(); + unsigned char *pr = red, *pg = green, *pb = blue; + unsigned int w = width * 2, h = height * 2; + unsigned int *xt = xtable, *yt = ytable; + + register unsigned int x, y; + + dry = drx = (float) (to->red() - from->red()); + dgy = dgx = (float) (to->green() - from->green()); + dby = dbx = (float) (to->blue() - from->blue()); + + // Create X table + drx /= w; + dgx /= w; + dbx /= w; + + for (x = 0; x < width; x++) { + *(xt++) = (unsigned char) (xr); + *(xt++) = (unsigned char) (xg); + *(xt++) = (unsigned char) (xb); + + xr += drx; + xg += dgx; + xb += dbx; + } + + // Create Y table + dry /= h; + dgy /= h; + dby /= h; + + for (y = 0; y < height; y++) { + *(yt++) = ((unsigned char) yr); + *(yt++) = ((unsigned char) yg); + *(yt++) = ((unsigned char) yb); + + yr += dry; + yg += dgy; + yb += dby; + } + + // Combine tables to create gradient + + + if (! interlaced) { + + + // normal dgradient + for (yt = ytable, y = 0; y < height; y++, yt += 3) { + for (xt = xtable, x = 0; x < width; x++) { + *(pr++) = *(xt++) + *(yt); + *(pg++) = *(xt++) + *(yt + 1); + *(pb++) = *(xt++) + *(yt + 2); + } + } + + } else { + // faked interlacing effect + unsigned char channel, channel2; + + for (yt = ytable, y = 0; y < height; y++, yt += 3) { + for (xt = xtable, x = 0; x < width; x++) { + if (y & 1) { + channel = *(xt++) + *(yt); + channel2 = (channel >> 1) + (channel >> 2); + if (channel2 > channel) channel2 = 0; + *(pr++) = channel2; + + channel = *(xt++) + *(yt + 1); + channel2 = (channel >> 1) + (channel >> 2); + if (channel2 > channel) channel2 = 0; + *(pg++) = channel2; + + channel = *(xt++) + *(yt + 2); + channel2 = (channel >> 1) + (channel >> 2); + if (channel2 > channel) channel2 = 0; + *(pb++) = channel2; + } else { + channel = *(xt++) + *(yt); + channel2 = channel + (channel >> 3); + if (channel2 < channel) channel2 = ~0; + *(pr++) = channel2; + + channel = *(xt++) + *(yt + 1); + channel2 = channel + (channel >> 3); + if (channel2 < channel) channel2 = ~0; + *(pg++) = channel2; + + channel = *(xt++) + *(yt + 2); + channel2 = channel + (channel >> 3); + if (channel2 < channel) channel2 = ~0; + *(pb++) = channel2; + } + } + } + } + + +} + + +void TextureRender::hgradient() { + float drx, dgx, dbx, + xr = (float) from->red(), + xg = (float) from->green(), + xb = (float) from->blue(); + unsigned char *pr = red, *pg = green, *pb = blue; + + register unsigned int x, y; + + drx = (float) (to->red() - from->red()); + dgx = (float) (to->green() - from->green()); + dbx = (float) (to->blue() - from->blue()); + + drx /= width; + dgx /= width; + dbx /= width; + + if (interlaced && height > 2) { + // faked interlacing effect + unsigned char channel, channel2; + + for (x = 0; x < width; x++, pr++, pg++, pb++) { + channel = (unsigned char) xr; + channel2 = (channel >> 1) + (channel >> 2); + if (channel2 > channel) channel2 = 0; + *pr = channel2; + + channel = (unsigned char) xg; + channel2 = (channel >> 1) + (channel >> 2); + if (channel2 > channel) channel2 = 0; + *pg = channel2; + + channel = (unsigned char) xb; + channel2 = (channel >> 1) + (channel >> 2); + if (channel2 > channel) channel2 = 0; + *pb = channel2; + + + channel = (unsigned char) xr; + channel2 = channel + (channel >> 3); + if (channel2 < channel) channel2 = ~0; + *(pr + width) = channel2; + + channel = (unsigned char) xg; + channel2 = channel + (channel >> 3); + if (channel2 < channel) channel2 = ~0; + *(pg + width) = channel2; + + channel = (unsigned char) xb; + channel2 = channel + (channel >> 3); + if (channel2 < channel) channel2 = ~0; + *(pb + width) = channel2; + + xr += drx; + xg += dgx; + xb += dbx; + } + + pr += width; + pg += width; + pb += width; + + int offset; + + for (y = 2; y < height; y++, pr += width, pg += width, pb += width) { + if (y & 1) offset = width; else offset = 0; + + memcpy(pr, (red + offset), width); + memcpy(pg, (green + offset), width); + memcpy(pb, (blue + offset), width); + } + } else { + + // normal hgradient + for (x = 0; x < width; x++) { + *(pr++) = (unsigned char) (xr); + *(pg++) = (unsigned char) (xg); + *(pb++) = (unsigned char) (xb); + + xr += drx; + xg += dgx; + xb += dbx; + } + + for (y = 1; y < height; y++, pr += width, pg += width, pb += width) { + memcpy(pr, red, width); + memcpy(pg, green, width); + memcpy(pb, blue, width); + } + + } + +} + + +void TextureRender::vgradient() { + float dry, dgy, dby, + yr = (float) from->red(), + yg = (float) from->green(), + yb = (float) from->blue(); + unsigned char *pr = red, *pg = green, *pb = blue; + + register unsigned int y; + + dry = (float) (to->red() - from->red()); + dgy = (float) (to->green() - from->green()); + dby = (float) (to->blue() - from->blue()); + + dry /= height; + dgy /= height; + dby /= height; + + if (interlaced) { + // faked interlacing effect + unsigned char channel, channel2; + + for (y = 0; y < height; y++, pr += width, pg += width, pb += width) { + if (y & 1) { + channel = (unsigned char) yr; + channel2 = (channel >> 1) + (channel >> 2); + if (channel2 > channel) channel2 = 0; + memset(pr, channel2, width); + + channel = (unsigned char) yg; + channel2 = (channel >> 1) + (channel >> 2); + if (channel2 > channel) channel2 = 0; + memset(pg, channel2, width); + + channel = (unsigned char) yb; + channel2 = (channel >> 1) + (channel >> 2); + if (channel2 > channel) channel2 = 0; + memset(pb, channel2, width); + } else { + channel = (unsigned char) yr; + channel2 = channel + (channel >> 3); + if (channel2 < channel) channel2 = ~0; + memset(pr, channel2, width); + + channel = (unsigned char) yg; + channel2 = channel + (channel >> 3); + if (channel2 < channel) channel2 = ~0; + memset(pg, channel2, width); + + channel = (unsigned char) yb; + channel2 = channel + (channel >> 3); + if (channel2 < channel) channel2 = ~0; + memset(pb, channel2, width); + } + + yr += dry; + yg += dgy; + yb += dby; + } + } else { + + // normal vgradient + for (y = 0; y < height; y++, pr += width, pg += width, pb += width) { + memset(pr, (unsigned char) yr, width); + memset(pg, (unsigned char) yg, width); + memset(pb, (unsigned char) yb, width); + + yr += dry; + yg += dgy; + yb += dby; + } + } + + +} + + +void TextureRender::pgradient() { + // pyramid gradient - based on original dgradient, written by + // Mosfet (mosfet@kde.org) + // adapted from kde sources for Blackbox by Brad Hughes + + float yr, yg, yb, drx, dgx, dbx, dry, dgy, dby, + xr, xg, xb; + int rsign, gsign, bsign; + unsigned char *pr = red, *pg = green, *pb = blue; + unsigned int tr = to->red(), tg = to->green(), tb = to->blue(); + unsigned int *xt = xtable, *yt = ytable; + + register unsigned int x, y; + + dry = drx = (float) (to->red() - from->red()); + dgy = dgx = (float) (to->green() - from->green()); + dby = dbx = (float) (to->blue() - from->blue()); + + rsign = (drx < 0) ? -1 : 1; + gsign = (dgx < 0) ? -1 : 1; + bsign = (dbx < 0) ? -1 : 1; + + xr = yr = (drx / 2); + xg = yg = (dgx / 2); + xb = yb = (dbx / 2); + + // Create X table + drx /= width; + dgx /= width; + dbx /= width; + + for (x = 0; x < width; x++) { + *(xt++) = (unsigned char) ((xr < 0) ? -xr : xr); + *(xt++) = (unsigned char) ((xg < 0) ? -xg : xg); + *(xt++) = (unsigned char) ((xb < 0) ? -xb : xb); + + xr -= drx; + xg -= dgx; + xb -= dbx; + } + + // Create Y table + dry /= height; + dgy /= height; + dby /= height; + + for (y = 0; y < height; y++) { + *(yt++) = ((unsigned char) ((yr < 0) ? -yr : yr)); + *(yt++) = ((unsigned char) ((yg < 0) ? -yg : yg)); + *(yt++) = ((unsigned char) ((yb < 0) ? -yb : yb)); + + yr -= dry; + yg -= dgy; + yb -= dby; + } + + // Combine tables to create gradient + + + if (! interlaced) { + + // normal pgradient + for (yt = ytable, y = 0; y < height; y++, yt += 3) { + for (xt = xtable, x = 0; x < width; x++) { + *(pr++) = (unsigned char) (tr - (rsign * (*(xt++) + *(yt)))); + *(pg++) = (unsigned char) (tg - (gsign * (*(xt++) + *(yt + 1)))); + *(pb++) = (unsigned char) (tb - (bsign * (*(xt++) + *(yt + 2)))); + } + } + + } else { + // faked interlacing effect + unsigned char channel, channel2; + + for (yt = ytable, y = 0; y < height; y++, yt += 3) { + for (xt = xtable, x = 0; x < width; x++) { + if (y & 1) { + channel = (unsigned char) (tr - (rsign * (*(xt++) + *(yt)))); + channel2 = (channel >> 1) + (channel >> 2); + if (channel2 > channel) channel2 = 0; + *(pr++) = channel2; + + channel = (unsigned char) (tg - (gsign * (*(xt++) + *(yt + 1)))); + channel2 = (channel >> 1) + (channel >> 2); + if (channel2 > channel) channel2 = 0; + *(pg++) = channel2; + + channel = (unsigned char) (tb - (bsign * (*(xt++) + *(yt + 2)))); + channel2 = (channel >> 1) + (channel >> 2); + if (channel2 > channel) channel2 = 0; + *(pb++) = channel2; + } else { + channel = (unsigned char) (tr - (rsign * (*(xt++) + *(yt)))); + channel2 = channel + (channel >> 3); + if (channel2 < channel) channel2 = ~0; + *(pr++) = channel2; + + channel = (unsigned char) (tg - (gsign * (*(xt++) + *(yt + 1)))); + channel2 = channel + (channel >> 3); + if (channel2 < channel) channel2 = ~0; + *(pg++) = channel2; + + channel = (unsigned char) (tb - (bsign * (*(xt++) + *(yt + 2)))); + channel2 = channel + (channel >> 3); + if (channel2 < channel) channel2 = ~0; + *(pb++) = channel2; + } + } + } + } + +} + + +void TextureRender::rgradient() { + // rectangle gradient - based on original dgradient, written by + // Mosfet (mosfet@kde.org) + // adapted from kde sources for Blackbox by Brad Hughes + + float drx, dgx, dbx, dry, dgy, dby, xr, xg, xb, yr, yg, yb; + int rsign, gsign, bsign; + unsigned char *pr = red, *pg = green, *pb = blue; + unsigned int tr = to->red(), tg = to->green(), tb = to->blue(); + unsigned int *xt = xtable, *yt = ytable; + + register unsigned int x, y; + + dry = drx = (float) (to->red() - from->red()); + dgy = dgx = (float) (to->green() - from->green()); + dby = dbx = (float) (to->blue() - from->blue()); + + rsign = (drx < 0) ? -2 : 2; + gsign = (dgx < 0) ? -2 : 2; + bsign = (dbx < 0) ? -2 : 2; + + xr = yr = (drx / 2); + xg = yg = (dgx / 2); + xb = yb = (dbx / 2); + + // Create X table + drx /= width; + dgx /= width; + dbx /= width; + + for (x = 0; x < width; x++) { + *(xt++) = (unsigned char) ((xr < 0) ? -xr : xr); + *(xt++) = (unsigned char) ((xg < 0) ? -xg : xg); + *(xt++) = (unsigned char) ((xb < 0) ? -xb : xb); + + xr -= drx; + xg -= dgx; + xb -= dbx; + } + + // Create Y table + dry /= height; + dgy /= height; + dby /= height; + + for (y = 0; y < height; y++) { + *(yt++) = ((unsigned char) ((yr < 0) ? -yr : yr)); + *(yt++) = ((unsigned char) ((yg < 0) ? -yg : yg)); + *(yt++) = ((unsigned char) ((yb < 0) ? -yb : yb)); + + yr -= dry; + yg -= dgy; + yb -= dby; + } + + // Combine tables to create gradient + + + if (! interlaced) { + + // normal rgradient + for (yt = ytable, y = 0; y < height; y++, yt += 3) { + for (xt = xtable, x = 0; x < width; x++) { + *(pr++) = (unsigned char) (tr - (rsign * std::max(*(xt++), *(yt)))); + *(pg++) = (unsigned char) (tg - (gsign * std::max(*(xt++), *(yt + 1)))); + *(pb++) = (unsigned char) (tb - (bsign * std::max(*(xt++), *(yt + 2)))); + } + } + + } else { + // faked interlacing effect + unsigned char channel, channel2; + + for (yt = ytable, y = 0; y < height; y++, yt += 3) { + for (xt = xtable, x = 0; x < width; x++) { + if (y & 1) { + channel = (unsigned char) (tr - (rsign * std::max(*(xt++), *(yt)))); + channel2 = (channel >> 1) + (channel >> 2); + if (channel2 > channel) channel2 = 0; + *(pr++) = channel2; + + channel = (unsigned char) (tg - (gsign * std::max(*(xt++), *(yt + 1)))); + channel2 = (channel >> 1) + (channel >> 2); + if (channel2 > channel) channel2 = 0; + *(pg++) = channel2; + + channel = (unsigned char) (tb - (bsign * std::max(*(xt++), *(yt + 2)))); + channel2 = (channel >> 1) + (channel >> 2); + if (channel2 > channel) channel2 = 0; + *(pb++) = channel2; + } else { + channel = (unsigned char) (tr - (rsign * std::max(*(xt++), *(yt)))); + channel2 = channel + (channel >> 3); + if (channel2 < channel) channel2 = ~0; + *(pr++) = channel2; + + channel = (unsigned char) (tg - (gsign * std::max(*(xt++), *(yt + 1)))); + channel2 = channel + (channel >> 3); + if (channel2 < channel) channel2 = ~0; + *(pg++) = channel2; + + channel = (unsigned char) (tb - (bsign * std::max(*(xt++), *(yt + 2)))); + channel2 = channel + (channel >> 3); + if (channel2 < channel) channel2 = ~0; + *(pb++) = channel2; + } + } + } + } + +} + + +void TextureRender::egradient() { + // elliptic gradient - based on original dgradient, written by + // Mosfet (mosfet@kde.org) + // adapted from kde sources for Blackbox by Brad Hughes + + float drx, dgx, dbx, dry, dgy, dby, yr, yg, yb, xr, xg, xb; + int rsign, gsign, bsign; + unsigned char *pr = red, *pg = green, *pb = blue; + unsigned int *xt = xtable, *yt = ytable; + unsigned int tr = (unsigned long) to->red(), + tg = (unsigned long) to->green(), + tb = (unsigned long) to->blue(); + + register unsigned int x, y; + + dry = drx = (float) (to->red() - from->red()); + dgy = dgx = (float) (to->green() - from->green()); + dby = dbx = (float) (to->blue() - from->blue()); + + rsign = (drx < 0) ? -1 : 1; + gsign = (dgx < 0) ? -1 : 1; + bsign = (dbx < 0) ? -1 : 1; + + xr = yr = (drx / 2); + xg = yg = (dgx / 2); + xb = yb = (dbx / 2); + + // Create X table + drx /= width; + dgx /= width; + dbx /= width; + + for (x = 0; x < width; x++) { + *(xt++) = (unsigned long) (xr * xr); + *(xt++) = (unsigned long) (xg * xg); + *(xt++) = (unsigned long) (xb * xb); + + xr -= drx; + xg -= dgx; + xb -= dbx; + } + + // Create Y table + dry /= height; + dgy /= height; + dby /= height; + + for (y = 0; y < height; y++) { + *(yt++) = (unsigned long) (yr * yr); + *(yt++) = (unsigned long) (yg * yg); + *(yt++) = (unsigned long) (yb * yb); + + yr -= dry; + yg -= dgy; + yb -= dby; + } + + // Combine tables to create gradient + if (! interlaced) { + // normal egradient + for (yt = ytable, y = 0; y < height; y++, yt += 3) { + for (xt = xtable, x = 0; x < width; x++) { + *(pr++) = (unsigned char) + (tr - (rsign * control.getSqrt(*(xt++) + *(yt)))); + *(pg++) = (unsigned char) + (tg - (gsign * control.getSqrt(*(xt++) + *(yt + 1)))); + *(pb++) = (unsigned char) + (tb - (bsign * control.getSqrt(*(xt++) + *(yt + 2)))); + } + } + + } else { + // faked interlacing effect + unsigned char channel, channel2; + + for (yt = ytable, y = 0; y < height; y++, yt += 3) { + for (xt = xtable, x = 0; x < width; x++) { + if (y & 1) { + channel = (unsigned char) + (tr - (rsign * control.getSqrt(*(xt++) + *(yt)))); + channel2 = (channel >> 1) + (channel >> 2); + if (channel2 > channel) channel2 = 0; + *(pr++) = channel2; + + channel = (unsigned char) + (tg - (gsign * control.getSqrt(*(xt++) + *(yt + 1)))); + channel2 = (channel >> 1) + (channel >> 2); + if (channel2 > channel) channel2 = 0; + *(pg++) = channel2; + + channel = (unsigned char) + (tb - (bsign * control.getSqrt(*(xt++) + *(yt + 2)))); + channel2 = (channel >> 1) + (channel >> 2); + if (channel2 > channel) channel2 = 0; + *(pb++) = channel2; + } else { + channel = (unsigned char) + (tr - (rsign * control.getSqrt(*(xt++) + *(yt)))); + channel2 = channel + (channel >> 3); + if (channel2 < channel) channel2 = ~0; + *(pr++) = channel2; + + channel = (unsigned char) + (tg - (gsign * control.getSqrt(*(xt++) + *(yt + 1)))); + channel2 = channel + (channel >> 3); + if (channel2 < channel) channel2 = ~0; + *(pg++) = channel2; + + channel = (unsigned char) + (tb - (bsign * control.getSqrt(*(xt++) + *(yt + 2)))); + channel2 = channel + (channel >> 3); + if (channel2 < channel) channel2 = ~0; + *(pb++) = channel2; + } + } + } + } + +} + + +void TextureRender::pcgradient() { + // pipe cross gradient - based on original dgradient, written by + // Mosfet (mosfet@kde.org) + // adapted from kde sources for Blackbox by Brad Hughes + + float drx, dgx, dbx, dry, dgy, dby, xr, xg, xb, yr, yg, yb; + int rsign, gsign, bsign; + unsigned char *pr = red, *pg = green, *pb = blue; + unsigned int *xt = xtable, *yt = ytable; + unsigned int tr = to->red(), + tg = to->green(), + tb = to->blue(); + + register unsigned int x, y; + + dry = drx = (float) (to->red() - from->red()); + dgy = dgx = (float) (to->green() - from->green()); + dby = dbx = (float) (to->blue() - from->blue()); + + rsign = (drx < 0) ? -2 : 2; + gsign = (dgx < 0) ? -2 : 2; + bsign = (dbx < 0) ? -2 : 2; + + xr = yr = (drx / 2); + xg = yg = (dgx / 2); + xb = yb = (dbx / 2); + + // Create X table + drx /= width; + dgx /= width; + dbx /= width; + + for (x = 0; x < width; x++) { + *(xt++) = (unsigned char) ((xr < 0) ? -xr : xr); + *(xt++) = (unsigned char) ((xg < 0) ? -xg : xg); + *(xt++) = (unsigned char) ((xb < 0) ? -xb : xb); + + xr -= drx; + xg -= dgx; + xb -= dbx; + } + + // Create Y table + dry /= height; + dgy /= height; + dby /= height; + + for (y = 0; y < height; y++) { + *(yt++) = ((unsigned char) ((yr < 0) ? -yr : yr)); + *(yt++) = ((unsigned char) ((yg < 0) ? -yg : yg)); + *(yt++) = ((unsigned char) ((yb < 0) ? -yb : yb)); + + yr -= dry; + yg -= dgy; + yb -= dby; + } + + // Combine tables to create gradient + if (! interlaced) { + + // normal pcgradient + for (yt = ytable, y = 0; y < height; y++, yt += 3) { + for (xt = xtable, x = 0; x < width; x++) { + *(pr++) = (unsigned char) (tr - (rsign * std::min(*(xt++), *(yt)))); + *(pg++) = (unsigned char) (tg - (gsign * std::min(*(xt++), *(yt + 1)))); + *(pb++) = (unsigned char) (tb - (bsign * std::min(*(xt++), *(yt + 2)))); + } + } + + } else { + // faked interlacing effect + unsigned char channel, channel2; + + for (yt = ytable, y = 0; y < height; y++, yt += 3) { + for (xt = xtable, x = 0; x < width; x++) { + if (y & 1) { + channel = (unsigned char) (tr - (rsign * std::min(*(xt++), *(yt)))); + channel2 = (channel >> 1) + (channel >> 2); + if (channel2 > channel) channel2 = 0; + *(pr++) = channel2; + + channel = (unsigned char) (tg - (bsign * std::min(*(xt++), *(yt + 1)))); + channel2 = (channel >> 1) + (channel >> 2); + if (channel2 > channel) channel2 = 0; + *(pg++) = channel2; + + channel = (unsigned char) (tb - (gsign * std::min(*(xt++), *(yt + 2)))); + channel2 = (channel >> 1) + (channel >> 2); + if (channel2 > channel) channel2 = 0; + *(pb++) = channel2; + } else { + channel = (unsigned char) (tr - (rsign * std::min(*(xt++), *(yt)))); + channel2 = channel + (channel >> 3); + if (channel2 < channel) channel2 = ~0; + *(pr++) = channel2; + + channel = (unsigned char) (tg - (gsign * std::min(*(xt++), *(yt + 1)))); + channel2 = channel + (channel >> 3); + if (channel2 < channel) channel2 = ~0; + *(pg++) = channel2; + + channel = (unsigned char) (tb - (bsign * std::min(*(xt++), *(yt + 2)))); + channel2 = channel + (channel >> 3); + if (channel2 < channel) channel2 = ~0; + *(pb++) = channel2; + } + } + } + } + +} + + +void TextureRender::cdgradient() { + // cross diagonal gradient - based on original dgradient, written by + // Mosfet (mosfet@kde.org) + // adapted from kde sources for Blackbox by Brad Hughes + + float drx, dgx, dbx, dry, dgy, dby, yr = 0.0, yg = 0.0, yb = 0.0, + xr = (float) from->red(), + xg = (float) from->green(), + xb = (float) from->blue(); + unsigned char *pr = red, *pg = green, *pb = blue; + unsigned int w = width * 2, h = height * 2, *xt, *yt; + + register unsigned int x, y; + + dry = drx = (float) (to->red() - from->red()); + dgy = dgx = (float) (to->green() - from->green()); + dby = dbx = (float) (to->blue() - from->blue()); + + // Create X table + drx /= w; + dgx /= w; + dbx /= w; + + for (xt = (xtable + (width * 3) - 1), x = 0; x < width; x++) { + *(xt--) = (unsigned char) xb; + *(xt--) = (unsigned char) xg; + *(xt--) = (unsigned char) xr; + + xr += drx; + xg += dgx; + xb += dbx; + } + + // Create Y table + dry /= h; + dgy /= h; + dby /= h; + + for (yt = ytable, y = 0; y < height; y++) { + *(yt++) = (unsigned char) yr; + *(yt++) = (unsigned char) yg; + *(yt++) = (unsigned char) yb; + + yr += dry; + yg += dgy; + yb += dby; + } + + // Combine tables to create gradient + + if (! interlaced) { + // normal cdgradient + for (yt = ytable, y = 0; y < height; y++, yt += 3) { + for (xt = xtable, x = 0; x < width; x++) { + *(pr++) = *(xt++) + *(yt); + *(pg++) = *(xt++) + *(yt + 1); + *(pb++) = *(xt++) + *(yt + 2); + } + } + + } else { + // faked interlacing effect + unsigned char channel, channel2; + + for (yt = ytable, y = 0; y < height; y++, yt += 3) { + for (xt = xtable, x = 0; x < width; x++) { + if (y & 1) { + channel = *(xt++) + *(yt); + channel2 = (channel >> 1) + (channel >> 2); + if (channel2 > channel) channel2 = 0; + *(pr++) = channel2; + + channel = *(xt++) + *(yt + 1); + channel2 = (channel >> 1) + (channel >> 2); + if (channel2 > channel) channel2 = 0; + *(pg++) = channel2; + + channel = *(xt++) + *(yt + 2); + channel2 = (channel >> 1) + (channel >> 2); + if (channel2 > channel) channel2 = 0; + *(pb++) = channel2; + } else { + channel = *(xt++) + *(yt); + channel2 = channel + (channel >> 3); + if (channel2 < channel) channel2 = ~0; + *(pr++) = channel2; + + channel = *(xt++) + *(yt + 1); + channel2 = channel + (channel >> 3); + if (channel2 < channel) channel2 = ~0; + *(pg++) = channel2; + + channel = *(xt++) + *(yt + 2); + channel2 = channel + (channel >> 3); + if (channel2 < channel) channel2 = ~0; + *(pb++) = channel2; + } + } + } + } + +} + diff --git a/src/TextureRender.hh b/src/TextureRender.hh new file mode 100644 index 0000000..8e1a9b3 --- /dev/null +++ b/src/TextureRender.hh @@ -0,0 +1,91 @@ +// TextureRender.hh for fluxbox +// Copyright (c) 2002 Henrik Kinnunen (fluxgen at fluxbox.org) +// +// Permission is hereby granted, free of charge, to any person obtaining a +// copy of this software and associated documentation files (the "Software"), +// to deal in the Software without restriction, including without limitation +// the rights to use, copy, modify, merge, publish, distribute, sublicense, +// and/or sell copies of the Software, and to permit persons to whom the +// Software is furnished to do so, subject to the following conditions: +// +// The above copyright notice and this permission notice shall be included in +// all copies or substantial portions of the Software. +// +// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR +// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, +// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL +// THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER +// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING +// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER +// DEALINGS IN THE SOFTWARE. + +// $Id: TextureRender.hh,v 1.1 2002/11/30 20:07:49 fluxgen Exp $ + +#ifndef TEXTURRENDER_HH +#define TEXTURRENDER_HH + +#include "Texture.hh" + +#include + +class BImageControl; + +/** + Renders texture to pixmap +*/ +class TextureRender { +public: + TextureRender(BImageControl &ic, unsigned int width, unsigned int height, + XColor *_colors=0, size_t num_colors=0); + ~TextureRender(); + /// render to pixmap + Pixmap render(const FbTk::Texture &src_texture); + /// render solid texture to pixmap + Pixmap renderSolid(const FbTk::Texture &src_texture); + /// render gradient texture to pixmap + Pixmap renderGradient(const FbTk::Texture &src_texture); + +private: + /** + Render to pixmap + @return rendered pixmap + */ + Pixmap renderPixmap(); + /** + Render to XImage + @returns allocated and rendered XImage, user is responsible to deallocate + */ + XImage *renderXImage(); + /** + @name render functions + */ + //@{ + void invert(); + void bevel1(); + void bevel2(); + void dgradient(); + void egradient(); + void hgradient(); + void pgradient(); + void rgradient(); + void vgradient(); + void cdgradient(); + void pcgradient(); + //@} + void makeGradientBuffers(); + + BImageControl &control; + bool interlaced; + + XColor *colors; // color table + + const FbTk::Color *from, *to; + int red_offset, green_offset, blue_offset, red_bits, green_bits, blue_bits, + ncolors, cpc, cpccpc; + unsigned char *red, *green, *blue; + const unsigned char *red_table, *green_table, *blue_table; + unsigned int width, height; + unsigned int *xtable, *ytable; +}; + +#endif // TEXTURERENDER_HH -- cgit v0.11.2