at last sprites "work"

[ld45_start_nothing] / tools / csprite / src / image.h

diff --git a/tools/csprite/src/image.h b/tools/csprite/src/image.h
new file mode 100644 (file)
index 0000000..75a952a
--- /dev/null
+++ b/tools/csprite/src/image.h
@@ -0,0 +1,45 @@
+/*
+256boss - bootable launcher for 256byte intros
+Copyright (C) 2018-2019  John Tsiombikas <nuclear@member.fsf.org>
+
+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 <https://www.gnu.org/licenses/>.
+*/
+#ifndef IMAGE_H_
+#define IMAGE_H_
+
+struct cmapent {
+       unsigned char r, g, b;
+};
+
+struct image {
+       int width, height;
+       int bpp;
+       int nchan;
+       int scansz, pitch;
+       int cmap_ncolors;
+       struct cmapent cmap[256];
+       unsigned char *pixels;
+};
+
+int alloc_image(struct image *img, int x, int y, int bpp);
+int load_image(struct image *img, const char *fname);
+int save_image(struct image *img, const char *fname);
+
+int cmp_image(struct image *a, struct image *b);
+
+void blit_image(struct image *src, int sx, int sy, int w, int h, struct image *dst, int dx, int dy);
+
+void image_color_offset(struct image *img, int offs);
+
+#endif /* IMAGE_H_ */