___

* Bitmap gamma test example. Of       ,---.        /""`_,'
    course it does not work yet,        |    `\``""-;   /
    because some dirty old pig          \   /`\\     ';'
    implemented a cucul_powf()        .')   |     __   \
    function that only works         / (`  /     /(O\. _|
    with integer exponents.       .-`|  `"`      `    .-\_
                               .-'   \                  ` ;=-.
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    VIEUX PORC !         .-'`            .           '-._;_._.J
                     .-'`                               `.-'` 
                 _. -`         L            '          .'
               .'           U                  '- ._.-'
             /`          C                         /
            /         y                           |
      ._   ;       J                         |    |
       )).-|                     |           |    /
      (/`.-|                \    \           /  .;
      ( (_)|                 |    \         ; .' |
       '--';                 |    `\       / /   |
            \                |      `\    /.'   /
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              '.           .'      _.-|  |  |  |
                '-.     .-';_"---'`.__|  |  |  \
                   `'-._     ``'-.    |  \  \__\\
                        `''--.___\\   \__\\

test/Makefile.am

@@ -1,6 +1,6 @@
 # $Id$
 
-noinst_PROGRAMS = colors demo dithering event export hsv optipal spritedit unicode
+noinst_PROGRAMS = colors demo dithering event export gamma hsv optipal spritedit unicode
 
 colors_SOURCES = colors.c
 colors_LDADD = ../caca/libcaca.la ../cucul/libcucul.la @CACA_LIBS@
@@ -22,6 +22,10 @@ export_SOURCES = export.c
 export_LDADD = ../cucul/libcucul.la @CUCUL_LIBS@
 export_CPPFLAGS = -I$(top_srcdir)/cucul
 
+gamma_SOURCES = gamma.c
+gamma_LDADD = ../caca/libcaca.la ../cucul/libcucul.la @CACA_LIBS@
+gamma_CPPFLAGS = -I$(top_srcdir)/cucul -I$(top_srcdir)/caca
+
 hsv_SOURCES = hsv.c
 hsv_LDADD = ../caca/libcaca.la ../cucul/libcucul.la @CACA_LIBS@
 hsv_CPPFLAGS = -I$(top_srcdir)/cucul -I$(top_srcdir)/caca

test/gamma.c

@@ -0,0 +1,67 @@
+/*
+ *  gamma         libcucul gamma test program
+ *  Copyright (c) 2006 Sam Hocevar <sam@zoy.org>
+ *                All Rights Reserved
+ *
+ *  $Id$
+ *
+ *  This program is free software; you can redistribute it and/or
+ *  modify it under the terms of the Do What The Fuck You Want To
+ *  Public License, Version 2, as published by Sam Hocevar. See
+ *  http://sam.zoy.org/wtfpl/COPYING for more details.
+ */
+
+#include "config.h"
+
+#if defined(HAVE_INTTYPES_H)
+#   include <inttypes.h>
+#else
+typedef unsigned char uint8_t;
+typedef unsigned short uint16_t;
+typedef unsigned int uint32_t;
+#endif
+
+#include "cucul.h"
+#include "caca.h"
+
+uint32_t buffer[256];
+
+int main(void)
+{
+    cucul_t *qq;
+    caca_t *kk;
+
+    struct cucul_bitmap *left, *right;
+    int x;
+
+    qq = cucul_init();
+    kk = caca_attach(qq);
+
+    for(x = 0; x < 256; x++)
+        buffer[x] = (x << 16) | (x << 8) | (x<< 0);
+
+    left = cucul_create_bitmap(qq, 32, 256, 1, 4 * 256,
+                               0x00ff0000, 0x0000ff00, 0x000000ff, 0x0);
+    right = cucul_create_bitmap(qq, 32, 256, 1, 4 * 256,
+                                0x00ff0000, 0x0000ff00, 0x000000ff, 0x0);
+    cucul_set_bitmap_gamma(right, 0.5);
+
+    cucul_draw_bitmap(qq, 0, 0,
+                      cucul_get_width(qq) - 1, cucul_get_height(qq) / 2 - 1,
+                      right, buffer);
+    cucul_draw_bitmap(qq, 0, cucul_get_height(qq) / 2,
+                      cucul_get_width(qq) - 1, cucul_get_height(qq) - 1,
+                      left, buffer);
+    cucul_free_bitmap(left);
+    cucul_free_bitmap(right);
+
+    caca_display(kk);
+
+    while(!caca_get_event(kk, CACA_EVENT_KEY_PRESS));
+
+    caca_detach(kk);
+    cucul_end(qq);
+
+    return 0;
+}
+