/* * xcore_maskupdate.c X11 mask 付き update * * Copyright (C) 1997-1998 Masaki Chikama (Wren) * 1998- * * 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 * */ /* $Id: xcore_maskupdate.c,v 1.4 2002/05/02 17:21:32 chikama Exp $ */ #include "config.h" #include #include #include #include #include #include "portab.h" #include "xcore_private.h" static Pixmap maskpix; /* clipmask 用 Bitmap */ static Pixmap clippix; /* copy 元 Pixmap */ static Pixmap savepix; /* copy 先 Pixmap */ static Pixmap doublepix;/* double buffer 用 Pixmap */ static GC maskgc; /* clipmask Bitmap 用 GC */ static void draw_5star(double mul, double rad, int off_x, int off_y); static void draw_6star(double mul, double rad, int off_x, int off_y); static void draw_windwheel_90(double rad, int r, int off_x, int off_y); static void draw_windwheel_180(double rad, int r, int off_x, int off_y); static void draw_windwheel_360(double rad, int r, int off_x, int off_y); /* * 五芒星を描く * mul : 倍率 (1 で 100 * 100) の星が描かれる * rad : 回転角度(radian) * off_x: 中心座標の x 方向 offset * off_y: 中心座標の y 方向 offset */ static void draw_5star(double mul, double rad, int off_x, int off_y) { static XPoint pt[] = { { 0, -50}, {-29, 40}, { 47, -15}, {-47, -15}, { 29, 40} }; XPoint p[5]; int i; /* * x' cos(X) -sin(X) mul 0 x * = * * * y' sin(X) cos(X) 0 mul y */ for (i = 0; i < 5; i++) { p[i].x = mul * (pt[i].x * cos(rad) - pt[i].y * sin(rad)) + off_x; p[i].y = mul * (pt[i].x * sin(rad) + pt[i].y * cos(rad)) + off_y; } XFillPolygon(x11_display, maskpix, maskgc, p, 5, Complex, CoordModeOrigin); } /* * 六芒星を描く * mul : 倍率 (1 で 100 * 100) の星が描かれる * rad : 回転角度(radian) * off_x: 中心座標の x 方向 offset * off_y: 中心座標の y 方向 offset */ static void draw_6star(double mul, double rad, int off_x, int off_y) { static XPoint pt1[] = { { 0, -50}, {-43, 25}, { 43, 25} }; static XPoint pt2[] = { {-43, -25}, { 0, 50}, { 43, -25} }; XPoint p[3]; int i; for (i = 0; i < 3; i++) { p[i].x = mul * (pt1[i].x * cos(rad) - pt1[i].y * sin(rad)) + off_x; p[i].y = mul * (pt1[i].x * sin(rad) + pt1[i].y * cos(rad)) + off_y; } XFillPolygon(x11_display, maskpix, maskgc, p, 3, Convex, CoordModeOrigin); for (i = 0; i < 3; i++) { p[i].x = mul * (pt2[i].x * cos(rad) - pt2[i].y * sin(rad)) + off_x; p[i].y = mul * (pt2[i].x * sin(rad) + pt2[i].y * cos(rad)) + off_y; } XFillPolygon(x11_display, maskpix, maskgc, p, 3, Convex, CoordModeOrigin); } /* * 扇型の中心角 (てきとー) * 0.2 radian */ #define WHEELDELTA 0.2 /* * 風車９０° * rad : 回転角 (radian) 0 - pi/2 * r : 半径 * off_x: 中心座標の x 方向 offset * off_y: 中心座標の y 方向 offset */ static void draw_windwheel_90(double rad, int r, int off_x, int off_y) { XPoint p[3]; p[0].x = 0 + off_x; p[0].y = 0 + off_y; p[1].x = r * sin(rad) + off_x; p[1].y = -r * cos(rad) + off_y; p[2].x = r * sin(rad + WHEELDELTA) + off_x; p[2].y = -r * cos(rad + WHEELDELTA) + off_y; XFillPolygon(x11_display, maskpix, maskgc, p, 3, Convex, CoordModeOrigin); p[1].x = r * cos(rad) + off_x; p[1].y = r * sin(rad) + off_y; p[2].x = r * cos(rad + WHEELDELTA) + off_x; p[2].y = r * sin(rad + WHEELDELTA) + off_y; XFillPolygon(x11_display, maskpix, maskgc, p, 3, Convex, CoordModeOrigin); p[1].x = -r * sin(rad) + off_x; p[1].y = r * cos(rad) + off_y; p[2].x = -r * sin(rad + WHEELDELTA) + off_x; p[2].y = r * cos(rad + WHEELDELTA) + off_y; XFillPolygon(x11_display, maskpix, maskgc, p, 3, Convex, CoordModeOrigin); p[1].x = -r * cos(rad) + off_x; p[1].y = -r * sin(rad) + off_y; p[2].x = -r * cos(rad + WHEELDELTA) + off_x; p[2].y = -r * sin(rad + WHEELDELTA) + off_y; XFillPolygon(x11_display, maskpix, maskgc, p, 3, Convex, CoordModeOrigin); } /* * 風車１８０° * rad : 回転角 (radian) 0 - pi * r : 半径 * off_x: 中心座標の x 方向 offset * off_y: 中心座標の y 方向 offset */ static void draw_windwheel_180(double rad, int r, int off_x, int off_y) { XPoint p[3]; p[0].x = 0 + off_x; p[0].y = 0 + off_y; p[1].x = -r * cos(rad) + off_x; p[1].y = -r * sin(rad) + off_y; p[2].x = -r * cos(rad + WHEELDELTA) + off_x; p[2].y = -r * sin(rad + WHEELDELTA) + off_y; XFillPolygon(x11_display, maskpix, maskgc, p, 3, Convex, CoordModeOrigin); p[1].x = r * cos(rad) + off_x; p[1].y = r * sin(rad) + off_y; p[2].x = r * cos(rad + WHEELDELTA) + off_x; p[2].y = r * sin(rad + WHEELDELTA) + off_y; XFillPolygon(x11_display, maskpix, maskgc, p, 3, Convex, CoordModeOrigin); } /* * 風車１８０° * rad : 回転角 (radian) 0 - 2pi * r : 半径 * off_x: 中心座標の x 方向 offset * off_y: 中心座標の y 方向 offset */ static void draw_windwheel_360(double rad, int r, int off_x, int off_y) { XPoint p[3]; p[0].x = 0 + off_x; p[0].y = 0 + off_y; p[1].x = -r * cos(rad) + off_x; p[1].y = -r * sin(rad) + off_y; p[2].x = -r * cos(rad + WHEELDELTA) + off_x; p[2].y = -r * sin(rad + WHEELDELTA) + off_y; XFillPolygon(x11_display, maskpix, maskgc, p, 3, Convex, CoordModeOrigin); } /* * マスク付き領域更新 * sx: コピー元 x 座標 * sy: コピー元 y 座標 * w : コピー元 width * h : コピー元 height * dx: コピー先 x 座標 * dy: コピー先 y 座標 * func: マスク種類 * 44: 五芒星(内->外) * 45: 五芒星(外->内) * 46: 六芒星(内->外) * 47: 六芒星(外->内) * 50: 風車９０° * 51: 風車１８０° * 52: 風車３６０° * step: 呼び出し番号 0 - 256 */ void Xcore_maskupdate(int sx, int sy, int w, int h, int dx, int dy, int func, int step) { GC gc; dx -= view_x; dy -= view_y; if (step == 0) { /* 最初にいろいろと準備 */ XSync(x11_display, False); /* コピー元を DIB から pixmap に持って来る */ clippix = x11_clip_from_DIB(sx, sy, w, h); /* clip mask 用 Pixmap の生成 */ maskpix = XCreatePixmap(x11_display, x11_window, w, h, 1); maskgc = XCreateGC(x11_display, maskpix, None, NULL); /* clipmask 用 Pixmap の初期化 */ XSetForeground(x11_display, maskgc, 0); XFillRectangle(x11_display, maskpix, maskgc, 0, 0, w, h); /* 線が交差するときの塗りつぶしのルールを設定 */ XSetFillRule(x11_display, maskgc, WindingRule); /* 更新先の Window の領域を保存 */ savepix = XCreatePixmap(x11_display, x11_window, w, h, WIN_DEPTH); XCopyArea(x11_display, x11_window, savepix, x11_gc_pix, winoffset_x + dx, winoffset_y + dy, w, h, 0, 0); /* ダブルバッファ用に Pixmap を確保 */ doublepix = XCreatePixmap(x11_display, x11_window, w, h, WIN_DEPTH); XCopyArea(x11_display, x11_window, doublepix, x11_gc_pix, winoffset_x + dx, winoffset_y + dy, w, h, 0, 0); XSync(x11_display, False); return; } else if (step == 256) { /* 最後に後始末 */ #if 0 XCopyArea(x11_display, clippix, x11_window, x11_gc_pix, 0, 0, w, h, winoffset_x + dx, winoffset_y + dy); #endif #if 0 XCopyArea(x11_display, clippix, x11_pixmap, x11_gc_pix, 0, 0, w, h, winoffset_x + dx, winoffset_y + dy); ags_updateFull(); #endif ags_copyArea(sx, sy, w, h, dx + view_x, dy + view_y); ags_updateArea(dx + view_x, dy + view_y, w, h); XFreePixmap(x11_display, maskpix); XFreePixmap(x11_display, clippix); XFreePixmap(x11_display, savepix); XFreePixmap(x11_display, doublepix); XFreeGC(x11_display, maskgc); return; } /* clipmask 用の GC を生成 (毎回生成しなくても良いかも？) */ gc = XCreateGC(x11_display, clippix, None, NULL); XSetClipMask(x11_display, gc, maskpix); XSetClipOrigin(x11_display, gc, 0, 0); switch(func) { case 44: case 46: /* 内から外へ */ XSetForeground(x11_display, maskgc, 0); XFillRectangle(x11_display, maskpix, maskgc, 0, 0, w, h); XSetForeground(x11_display, maskgc, 1); break; case 45: case 47: /* 外から内へ */ XSetForeground(x11_display, maskgc, 1); XFillRectangle(x11_display, maskpix, maskgc, 0, 0, w, h); XSetForeground(x11_display, maskgc, 0); break; default: XSetForeground(x11_display, maskgc, 1); } /* mask を描画 */ switch(func) { case 44: draw_5star(1.5 * (max(w,h) * step) / (256 * 50.0), 1.0 * M_PI * step / 256, w/2, h/2); break; case 45: draw_5star(1.5 * (max(w,h) * (256-step)) / (256 * 50.0), 1.0 * M_PI * step / 256, w/2, h/2); break; case 46: draw_6star((max(w,h) * step) / (256 * 50.0), 1.0 * M_PI * step / 256, w/2, h/2); break; case 47: draw_6star((max(w,h) * (256-step)) / (256 * 50.0), 1.0 * M_PI * step / 256, w/2, h/2); break; case 50: draw_windwheel_90(0.5 * M_PI * step / 256, sqrt(w*w+h*h)/2, w/2, h/2); break; case 51: draw_windwheel_180(1.0 * M_PI * step / 256, sqrt(w*w+h*h)/2, w/2, h/2); break; case 52: draw_windwheel_360(2.0 * M_PI * step / 256, sqrt(w*w+h*h)/2, w/2, h/2); break; } /* double buffer へ 保存した window の内容をコピー */ XCopyArea(x11_display, savepix, doublepix, x11_gc_win, 0, 0, w, h, 0, 0); /* コピー元の内容を mask付きで double buffer へコピー */ XCopyArea(x11_display, clippix, doublepix, gc, 0, 0, w, h, 0, 0); /* double buffer から window へコピー */ XCopyArea(x11_display, doublepix, x11_window, x11_gc_win, 0, 0, w, h, winoffset_x + dx, winoffset_y + dy); /* 同期 */ XSync(x11_display, False); /* clipmask 用 gc の破棄 */ XFreeGC(x11_display, gc); }