From b487f62ba7cd7dbbcadb2b5704ec1c99f6578390 Mon Sep 17 00:00:00 2001
From: Tim Keller <tjkeller.xyz>
Date: Tue, 6 May 2025 21:17:38 -0500
Subject: initial commit

---
 pix.py | 89 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 89 insertions(+)
 create mode 100644 pix.py

(limited to 'pix.py')

diff --git a/pix.py b/pix.py
new file mode 100644
index 0000000..988f83d
--- /dev/null
+++ b/pix.py
@@ -0,0 +1,89 @@
+import sys
+from OpenGL.GL import *
+from OpenGL.GLUT import *
+from OpenGL.GLU import *
+from PIL import Image
+from time import time
+
+from transition import Transition
+
+display_time = 2.0
+transition_duration = 0.5
+
+# Load image as a texture using PIL
+def load_texture(image_path):
+    img = Image.open(image_path)
+    img = img.convert("RGBA")  # Ensure the image is in RGBA mode (4 channels: R, G, B, A)
+    img_data = img.tobytes("raw", "RGBA", 0, -1)  # Convert image data to bytes
+
+    texture_id = glGenTextures(1)
+    glBindTexture(GL_TEXTURE_2D, texture_id)
+    glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, img.width, img.height, 0, GL_RGBA, GL_UNSIGNED_BYTE, img_data)
+    glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR)
+    glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR)
+    return texture_id
+
+# Main display function
+transition = Transition()
+def display():
+    global start_time, image_time, last_time, alpha, texture_id1, texture_id2
+
+    current_time = time()
+    alive_time = current_time - start_time
+    delta_time = current_time - last_time
+    last_time = current_time
+    image_time += delta_time
+
+    if (image_time < display_time):
+        return
+
+    glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT)
+    glLoadIdentity()
+
+    # Get window size
+    window_width, window_height = glutGet(GLUT_WINDOW_WIDTH), glutGet(GLUT_WINDOW_HEIGHT)
+
+    # DRAW
+    transition_time = image_time - display_time
+    complete = transition.draw(texture_id1, texture_id2, window_width, window_height, delta_time, transition_time, transition_duration)
+
+    glClearColor(0.0, 0.0, 0.0, 1.0)  # Set the background color to black
+
+    glutSwapBuffers()
+
+    if (complete):
+        image_time = 0
+        texture_id1, texture_id2 = texture_id2, texture_id1
+
+# Initialization and main loop
+def main():
+    global texture_id1, texture_id2, alpha, last_time, start_time, image_time
+
+    # Initialize the window
+    glutInit(sys.argv)
+    glutInitDisplayMode(GLUT_DOUBLE | GLUT_RGB)
+    glutCreateWindow("Image Viewer with Fade Transition")
+    glEnable(GL_TEXTURE_2D)
+
+    # Load two images for transition
+    texture_id1 = load_texture("image1.jpg")
+    texture_id2 = load_texture("image2.jpg")
+
+    alpha = 0.0  # Start with fully transparent
+    image_time = 0
+    start_time = time()
+    last_time = time()
+
+    # Set up the OpenGL viewport and projection
+    glMatrixMode(GL_PROJECTION)
+    glLoadIdentity()
+    glOrtho(-1, 1, -1, 1, -1, 1)
+    glMatrixMode(GL_MODELVIEW)
+
+    glutDisplayFunc(display)
+    glutIdleFunc(display)
+    glutMainLoop()
+
+if __name__ == "__main__":
+    main()
+
-- 
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