diff options
| author | Yuval Adam <yuv.adm@gmail.com> | 2014-08-08 14:42:07 +0300 |
|---|---|---|
| committer | Yuval Adam <yuv.adm@gmail.com> | 2014-08-08 14:42:07 +0300 |
| commit | a6163888f3c56123b1db313743c6147ba498732c (patch) | |
| tree | ff7d15d991d1d09ba6cbc0cec80924f57445bfdd /third_party/windows/fltk-1.1.10/src/fl_draw_pixmap.cxx | |
| parent | c3e4c9a25c2910d2d66d52215b3406b13d5b23d5 (diff) | |
Add third_party libs
Diffstat (limited to 'third_party/windows/fltk-1.1.10/src/fl_draw_pixmap.cxx')
| -rw-r--r-- | third_party/windows/fltk-1.1.10/src/fl_draw_pixmap.cxx | 340 |
1 files changed, 340 insertions, 0 deletions
diff --git a/third_party/windows/fltk-1.1.10/src/fl_draw_pixmap.cxx b/third_party/windows/fltk-1.1.10/src/fl_draw_pixmap.cxx new file mode 100644 index 0000000..c76be55 --- /dev/null +++ b/third_party/windows/fltk-1.1.10/src/fl_draw_pixmap.cxx @@ -0,0 +1,340 @@ +//
+// "$Id: fl_draw_pixmap.cxx 6026 2008-02-14 18:17:06Z matt $"
+//
+// Pixmap drawing code for the Fast Light Tool Kit (FLTK).
+//
+// Copyright 1998-2005 by Bill Spitzak and others.
+//
+// This library is free software; you can redistribute it and/or
+// modify it under the terms of the GNU Library General Public
+// License as published by the Free Software Foundation; either
+// version 2 of the License, or (at your option) any later version.
+//
+// This library 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
+// Library General Public License for more details.
+//
+// You should have received a copy of the GNU Library General Public
+// License along with this library; if not, write to the Free Software
+// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
+// USA.
+//
+// Please report all bugs and problems on the following page:
+//
+// http://www.fltk.org/str.php
+//
+
+// Implemented without using the xpm library (which I can't use because
+// it interferes with the color cube used by fl_draw_image).
+// Current implementation is cheap and slow, and works best on a full-color
+// display. Transparency is not handled, and colors are dithered to
+// the color cube. Color index is achieved by adding the id
+// characters together! Also mallocs a lot of temporary memory!
+// Notice that there is no pixmap file interface. This is on purpose,
+// as I want to discourage programs that require support files to work.
+// All data needed by a program ui should be compiled in!!!
+
+#include <FL/Fl.H>
+#include <FL/fl_draw.H>
+#include <FL/x.H>
+#include <stdio.h>
+#include "flstring.h"
+
+static int ncolors, chars_per_pixel;
+
+int fl_measure_pixmap(/*const*/ char* const* data, int &w, int &h) {
+ return fl_measure_pixmap((const char*const*)data,w,h);
+}
+
+int fl_measure_pixmap(const char * const *data, int &w, int &h) {
+ int i = sscanf(data[0],"%d%d%d%d",&w,&h,&ncolors,&chars_per_pixel);
+ if (i<4 || w<=0 || h<=0 ||
+ chars_per_pixel!=1 && chars_per_pixel!=2) return w=0;
+ return 1;
+}
+
+#ifdef U64
+
+// The callback from fl_draw_image to get a row of data passes this:
+struct pixmap_data {
+ int w, h;
+ const uchar*const* data;
+ union {
+ U64 colors[256];
+ U64* byte1[256];
+ };
+};
+
+// callback for 1 byte per pixel:
+static void cb1(void*v, int x, int y, int w, uchar* buf) {
+ pixmap_data& d = *(pixmap_data*)v;
+ const uchar* p = d.data[y]+x;
+ U64* q = (U64*)buf;
+ for (int X=w; X>0; X-=2, p += 2) {
+ if (X>1) {
+# if WORDS_BIGENDIAN
+ *q++ = (d.colors[p[0]]<<32) | d.colors[p[1]];
+# else
+ *q++ = (d.colors[p[1]]<<32) | d.colors[p[0]];
+# endif
+ } else {
+# if WORDS_BIGENDIAN
+ *q++ = d.colors[p[0]]<<32;
+# else
+ *q++ = d.colors[p[0]];
+# endif
+ }
+ }
+}
+
+// callback for 2 bytes per pixel:
+static void cb2(void*v, int x, int y, int w, uchar* buf) {
+ pixmap_data& d = *(pixmap_data*)v;
+ const uchar* p = d.data[y]+2*x;
+ U64* q = (U64*)buf;
+ for (int X=w; X>0; X-=2) {
+ U64* colors = d.byte1[*p++];
+ int index = *p++;
+ if (X>1) {
+ U64* colors1 = d.byte1[*p++];
+ int index1 = *p++;
+# if WORDS_BIGENDIAN
+ *q++ = (colors[index]<<32) | colors1[index1];
+# else
+ *q++ = (colors1[index1]<<32) | colors[index];
+# endif
+ } else {
+# if WORDS_BIGENDIAN
+ *q++ = colors[index]<<32;
+# else
+ *q++ = colors[index];
+# endif
+ }
+ }
+}
+
+#else // U32
+
+// The callback from fl_draw_image to get a row of data passes this:
+struct pixmap_data {
+ int w, h;
+ const uchar*const* data;
+ union {
+ U32 colors[256];
+ U32* byte1[256];
+ };
+};
+
+# ifndef __APPLE_QUARTZ__
+
+// callback for 1 byte per pixel:
+static void cb1(void*v, int x, int y, int w, uchar* buf) {
+ pixmap_data& d = *(pixmap_data*)v;
+ const uchar* p = d.data[y]+x;
+ U32* q = (U32*)buf;
+ for (int X=w; X--;) *q++ = d.colors[*p++];
+}
+
+// callback for 2 bytes per pixel:
+static void cb2(void*v, int x, int y, int w, uchar* buf) {
+ pixmap_data& d = *(pixmap_data*)v;
+ const uchar* p = d.data[y]+2*x;
+ U32* q = (U32*)buf;
+ for (int X=w; X--;) {
+ U32* colors = d.byte1[*p++];
+ *q++ = colors[*p++];
+ }
+}
+
+# endif // !__APPLE_QUARTZ__
+
+#endif // U64 else U32
+
+uchar **fl_mask_bitmap; // if non-zero, create bitmap and store pointer here
+
+int fl_draw_pixmap(/*const*/ char* const* data, int x,int y,Fl_Color bg) {
+ return fl_draw_pixmap((const char*const*)data,x,y,bg);
+}
+
+int fl_draw_pixmap(const char*const* di, int x, int y, Fl_Color bg) {
+ pixmap_data d;
+ if (!fl_measure_pixmap(di, d.w, d.h)) return 0;
+ const uchar*const* data = (const uchar*const*)(di+1);
+ int transparent_index = -1;
+
+ if (ncolors < 0) { // FLTK (non standard) compressed colormap
+ ncolors = -ncolors;
+ const uchar *p = *data++;
+ // if first color is ' ' it is transparent (put it later to make
+ // it not be transparent):
+ if (*p == ' ') {
+ uchar* c = (uchar*)&d.colors[(int)' '];
+#ifdef U64
+ *(U64*)c = 0;
+# if WORDS_BIGENDIAN
+ c += 4;
+# endif
+#endif
+ transparent_index = ' ';
+ Fl::get_color(bg, c[0], c[1], c[2]); c[3] = 0;
+ p += 4;
+ ncolors--;
+ }
+ // read all the rest of the colors:
+ for (int i=0; i < ncolors; i++) {
+ uchar* c = (uchar*)&d.colors[*p++];
+#ifdef U64
+ *(U64*)c = 0;
+# if WORDS_BIGENDIAN
+ c += 4;
+# endif
+#endif
+ *c++ = *p++;
+ *c++ = *p++;
+ *c++ = *p++;
+#ifdef __APPLE_QUARTZ__
+ *c = 255;
+#else
+ *c = 0;
+#endif
+ }
+ } else { // normal XPM colormap with names
+ if (chars_per_pixel>1) memset(d.byte1, 0, sizeof(d.byte1));
+ for (int i=0; i<ncolors; i++) {
+ const uchar *p = *data++;
+ // the first 1 or 2 characters are the color index:
+ int ind = *p++;
+ uchar* c;
+ if (chars_per_pixel>1) {
+#ifdef U64
+ U64* colors = d.byte1[ind];
+ if (!colors) colors = d.byte1[ind] = new U64[256];
+#else
+ U32* colors = d.byte1[ind];
+ if (!colors) colors = d.byte1[ind] = new U32[256];
+#endif
+ c = (uchar*)&colors[*p];
+ ind = (ind<<8)|*p++;
+ } else {
+ c = (uchar *)&d.colors[ind];
+ }
+ // look for "c word", or last word if none:
+ const uchar *previous_word = p;
+ for (;;) {
+ while (*p && isspace(*p)) p++;
+ uchar what = *p++;
+ while (*p && !isspace(*p)) p++;
+ while (*p && isspace(*p)) p++;
+ if (!*p) {p = previous_word; break;}
+ if (what == 'c') break;
+ previous_word = p;
+ while (*p && !isspace(*p)) p++;
+ }
+#ifdef U64
+ *(U64*)c = 0;
+# if WORDS_BIGENDIAN
+ c += 4;
+# endif
+#endif
+#ifdef __APPLE_QUARTZ__
+ c[3] = 255;
+#endif
+ if (!fl_parse_color((const char*)p, c[0], c[1], c[2])) {
+ // assume "None" or "#transparent" for any errors
+ // "bg" should be transparent...
+ Fl::get_color(bg, c[0], c[1], c[2]);
+#ifdef __APPLE_QUARTZ__
+ c[3] = 0;
+#endif
+ transparent_index = ind;
+ }
+ }
+ }
+ d.data = data;
+
+#ifndef __APPLE_QUARTZ__
+
+ // build the mask bitmap used by Fl_Pixmap:
+ if (fl_mask_bitmap && transparent_index >= 0) {
+ int W = (d.w+7)/8;
+ uchar* bitmap = new uchar[W * d.h];
+ *fl_mask_bitmap = bitmap;
+ for (int Y = 0; Y < d.h; Y++) {
+ const uchar* p = data[Y];
+ if (chars_per_pixel <= 1) {
+ int dw = d.w;
+ for (int X = 0; X < W; X++) {
+ uchar b = (dw-->0 && *p++ != transparent_index);
+ if (dw-->0 && *p++ != transparent_index) b |= 2;
+ if (dw-->0 && *p++ != transparent_index) b |= 4;
+ if (dw-->0 && *p++ != transparent_index) b |= 8;
+ if (dw-->0 && *p++ != transparent_index) b |= 16;
+ if (dw-->0 && *p++ != transparent_index) b |= 32;
+ if (dw-->0 && *p++ != transparent_index) b |= 64;
+ if (dw-->0 && *p++ != transparent_index) b |= 128;
+ *bitmap++ = b;
+ }
+ } else {
+ uchar b = 0, bit = 1;
+ for (int X = 0; X < d.w; X++) {
+ int ind = *p++;
+ ind = (ind<<8) | (*p++);
+ if (ind != transparent_index) b |= bit;
+
+ if (bit < 128) bit <<= 1;
+ else {
+ *bitmap++ = b;
+ b = 0;
+ bit = 1;
+ }
+ }
+
+ if (bit > 1) *bitmap++ = b;
+ }
+ }
+ }
+
+ fl_draw_image(chars_per_pixel==1 ? cb1 : cb2, &d, x, y, d.w, d.h, 4);
+
+#else // __APPLE_QUARTZ__
+
+ bool transparent = (transparent_index>=0);
+ transparent = true;
+ U32 *array = new U32[d.w * d.h], *q = array;
+ for (int Y = 0; Y < d.h; Y++) {
+ const uchar* p = data[Y];
+ if (chars_per_pixel <= 1) {
+ for (int X = 0; X < d.w; X++) {
+ *q++ = d.colors[*p++];
+ }
+ } else {
+ for (int X = 0; X < d.w; X++) {
+ U32* colors = d.byte1[*p++];
+ *q++ = colors[*p++];
+ }
+ }
+ }
+ CGColorSpaceRef lut = CGColorSpaceCreateDeviceRGB();
+ CGDataProviderRef src = CGDataProviderCreateWithData( 0L, array, d.w * d.h * 4, 0L);
+ CGImageRef img = CGImageCreate(d.w, d.h, 8, 4*8, 4*d.w,
+ lut, transparent?kCGImageAlphaLast:kCGImageAlphaNoneSkipLast,
+ src, 0L, false, kCGRenderingIntentDefault);
+ CGColorSpaceRelease(lut);
+ CGDataProviderRelease(src);
+ CGRect rect = { { x, y} , { d.w, d.h } };
+ Fl_X::q_begin_image(rect, 0, 0, d.w, d.h);
+ CGContextDrawImage(fl_gc, rect, img);
+ Fl_X::q_end_image();
+ CGImageRelease(img);
+ delete array;
+
+#endif // !__APPLE_QUARTZ__
+
+ if (chars_per_pixel > 1) for (int i = 0; i < 256; i++) delete[] d.byte1[i];
+ return 1;
+}
+
+//
+// End of "$Id: fl_draw_pixmap.cxx 6026 2008-02-14 18:17:06Z matt $".
+//
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