Changeset 690 for libcaca/trunkTweet

Timestamp:

Mar 24, 2006, 8:34:45 PM (15 years ago)

Author:

Jean-Yves Lamoureux

Message:

• Added bitmap invert routine. It doesn't work well, so don't use it right now. Sam is working hard to correct the strange behaviour.

Location:

libcaca/trunk

Files:

• cucul/bitmap.c (modified) (4 diffs)
• cucul/cucul.h (modified) (1 diff)
• test/demo.c (modified) (2 diffs)

libcaca/trunk/cucul/bitmap.c

@@ -150 +150 @@
     float gamma;
     int gammatab[4097];
+    unsigned char invert;
 };
 #endif
@@ -314 +315 @@
         bitmap->gammatab[i] = i;
 
+    /* No color inversion by default */
+    bitmap->invert = 0;
+
     return bitmap;
 }
@@ -379 +383 @@
         bitmap->gammatab[i] = 4096.0 * gammapow((float)i / 4096.0, 1.0 / gamma);
 }
+
+
+/**
+ * \brief Invert colors of bitmap
+ *
+ * Invert colors of bitmap
+ *
+ * \param bitmap Bitmap object.
+ * \param value 0 for normal behaviour, 1 for invert
+ */
+void cucul_set_bitmap_invert(struct cucul_bitmap *bitmap, unsigned char value)
+{
+    bitmap->invert = (value==0)?0:1;
+}
+
+
 
 /**
@@ -782 +802 @@
         }
 
+        if(bitmap->invert) {
+            outfg = 15-outfg;
+            outbg = 15-outfg;
+        }
+
         /* Now output the character */
         cucul_set_color(qq, outfg, outbg);

libcaca/trunk/cucul/cucul.h

@@ -224 +224 @@
 void cucul_set_bitmap_gamma(struct cucul_bitmap *, float);
 void cucul_draw_bitmap(cucul_t *, int, int, int, int, struct cucul_bitmap const *, void *);
+void cucul_set_bitmap_invert(struct cucul_bitmap *, unsigned char);
 void cucul_free_bitmap(struct cucul_bitmap *);
 /*  @} */

libcaca/trunk/test/demo.c

@@ -494 +494 @@
         *dest++ = (x << 16) | (y << 8) | (z);
     }
-
+    cucul_set_bitmap_invert(bitmap, 1);
     //bitmap = cucul_create_bitmap(16, 256, 256, 2 * 256, 0xf800, 0x07e0, 0x001f, 0x0000);
     bitmap = cucul_create_bitmap(32, 256, 256, 4 * 256, 0x00ff0000, 0x0000ff00, 0x000000ff, 0xff000000);
@@ -541 +541 @@
 
     bitmap = cucul_create_bitmap(32, 256, 256, 4 * 256, 0x00ff0000, 0x0000ff00, 0x000000ff, 0xff000000);
+ cucul_set_bitmap_invert(bitmap, 1);
     cucul_draw_bitmap(qq, 0, 0, cucul_get_width(qq) - 1, cucul_get_height(qq) - 1, bitmap, (char *)buffer);
     cucul_free_bitmap(bitmap);