X-Git-Url: http://git.mutantstargoat.com?p=winnie;a=blobdiff_plain;f=libwinnie%2Fsrc%2Fpixmap.cc;fp=libwinnie%2Fsrc%2Fpixmap.cc;h=8e50fa3caba353c843abbb9b4ce616a35f63edef;hp=0000000000000000000000000000000000000000;hb=7b5d2df884abb7084d71f17cc29a618c0b6f47ef;hpb=b4c8d68e0357683cec82fb8a9c5a4447155b3192
diff --git a/libwinnie/src/pixmap.cc b/libwinnie/src/pixmap.cc
new file mode 100644
index 0000000..8e50fa3
--- /dev/null
+++ b/libwinnie/src/pixmap.cc
@@ -0,0 +1,177 @@
+/*
+winnie - an experimental window system
+
+Copyright (C) 2013 Eleni Maria Stea
+
+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 3 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, see .
+
+Author: Eleni Maria Stea
+*/
+
+#include
+#include
+#include
+#include "pixmap.h"
+
+Pixmap::Pixmap()
+{
+ width = height = 0;
+ pixels = 0;
+}
+
+Pixmap::Pixmap(const Pixmap &pixmap)
+{
+ width = height = 0;
+ pixels = 0;
+ set_image(pixmap.width, pixmap.height, pixmap.pixels);
+}
+
+Pixmap &Pixmap::operator=(const Pixmap &pixmap)
+{
+ if(this != &pixmap) {
+ set_image(pixmap.width, pixmap.height, pixmap.pixels);
+ }
+
+ return *this;
+}
+
+Pixmap::~Pixmap()
+{
+ if(pixels) {
+ delete [] pixels;
+ }
+}
+
+int Pixmap::get_width() const
+{
+ return width;
+}
+
+int Pixmap::get_height() const
+{
+ return height;
+}
+
+Rect Pixmap::get_rect() const
+{
+ Rect rect(0, 0, width, height);
+ return rect;
+}
+
+bool Pixmap::set_image(int x, int y, unsigned char *pix)
+{
+ delete [] pixels;
+
+ pixels = new unsigned char[x * y * 4];
+ width = x;
+ height = y;
+
+ if(pix) {
+ memcpy(pixels, pix, x * y * 4);
+ }
+ return true;
+}
+
+const unsigned char *Pixmap::get_image() const
+{
+ return pixels;
+}
+
+unsigned char *Pixmap::get_image()
+{
+ return pixels;
+}
+
+bool Pixmap::load(const char *fname)
+{
+ FILE *fp;
+ int hdrline = 0;
+
+ if(!(fp = fopen(fname, "rb"))) {
+ fprintf(stderr, "failed to open pixmap: %s: %s\n", fname, strerror(errno));
+ return false;
+ }
+
+ /* read ppm header */
+ while(hdrline < 3) {
+ char buf[64];
+
+ if(!fgets(buf, sizeof buf, fp))
+ goto err;
+
+ /* skip comments */
+ if(buf[0] == '#')
+ continue;
+
+ switch(hdrline++) {
+ case 0:
+ /* first header line should be P6 */
+ if(strcmp(buf, "P6\n") != 0)
+ goto err;
+ break;
+
+ case 1:
+ /* second header line contains the pixmap dimensions */
+ if(sscanf(buf, "%d %d", &width, &height) != 2)
+ goto err;
+ break;
+ }
+ }
+
+ set_image(width, height, 0);
+
+ for(int i=0; i