Changeset 1757 for libcaca/trunkTweet

Timestamp:

Feb 23, 2007, 3:34:48 PM (14 years ago)

Author:

Jean-Yves Lamoureux

Message:

• Added squared transition to cacademo

Location:

libcaca/trunk

Files:

• build-kernel (modified) (1 diff)
• src/cacademo.c (modified) (4 diffs)

libcaca/trunk/build-kernel

@@ -34 +34 @@
 
 # For further development: create floppy images using the kernel
-#gcc -traditional -c -o bootsect.o /usr/src/linux/arch/i386/boot/bootsect.S
-#ld -Ttext 0x0 -s --oformat binary bootsect.o -o cacademo.img
+gcc -traditional -c -o bootsect.o /usr/src/linux/arch/i386/boot/bootsect.S
+ld -Ttext 0x0 -s --oformat binary bootsect.o -o cacademo.img
 

libcaca/trunk/src/cacademo.c

@@ -53 +53 @@
 #define TRANSITION_FRAMES 40
 
-#define TRANSITION_COUNT  2
+#define TRANSITION_COUNT  3
 #define TRANSITION_CIRCLE 0
 #define TRANSITION_STAR   1
-
+#define TRANSITION_SQUARE 2
 
 /* Common macros for dither-based demos */
@@ -211 +211 @@
     static float star_rot[sizeof(star)/sizeof(*star)];
 
+
+    static float const square[] =
+    {
+        -1, -1,
+        1, -1,
+        1, 1,
+        -1, 1
+    };
+    static float square_rot[sizeof(square)/sizeof(*square)];
+
     float mulx = 0.0075f * completed * cucul_get_canvas_width(mask);
     float muly = 0.0075f * completed * cucul_get_canvas_height(mask);
@@ -220 +230 @@
     switch(tmode)
     {
+        case TRANSITION_SQUARE:
+            /* Compute rotated coordinates */
+            for(i = 0; i < (sizeof(square) / sizeof(*square)) / 2; i++)
+            {
+                x = square[i * 2];
+                y = square[i * 2 + 1];
+
+                square_rot[i * 2] = x * cos(angle) - y * sin(angle);
+                square_rot[i * 2 + 1] = y * cos(angle) + x * sin(angle);
+            }
+
+            mulx *= 1.8;
+            muly *= 1.8;
+            cucul_fill_triangle(mask,
+                                square_rot[0*2] * mulx + w2, square_rot[0*2+1] * muly + h2, \
+                                square_rot[1*2] * mulx + w2, square_rot[1*2+1] * muly + h2, \
+                                square_rot[2*2] * mulx + w2, square_rot[2*2+1] * muly + h2, '#');
+            cucul_fill_triangle(mask,
+                                square_rot[0*2] * mulx + w2, square_rot[0*2+1] * muly + h2, \
+                                square_rot[2*2] * mulx + w2, square_rot[2*2+1] * muly + h2, \
+                                square_rot[3*2] * mulx + w2, square_rot[3*2+1] * muly + h2, '#');
+            break;
+
+
         case TRANSITION_STAR:
             /* Compute rotated coordinates */
@@ -553 +587 @@
                 draw_line(dx / 3, dy / 3, (i / DISCTHICKNESS) % 2);
                 draw_line(dy / 3, dx / 3, (i / DISCTHICKNESS) % 2);
-        
+
                 t += t > 0 ? dx - dy-- : dx;
             }