[feature] texture rendering

1 files changed, 72 insertions, 0 deletions

diff --git a/example/texture.c b/example/texture.c
new file mode 100644
index 0000000..da614d4
--- /dev/null
+++ b/example/texture.c
@@ -0,0 +1,72 @@
+#define FBGL_IMPLEMENTATION
+#include "../fbgl.h"
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h> // for usleep
+
+int main(int argc, char **argv)
+{
+	// Initialize framebuffer
+	fbgl_t framebuffer;
+	if (fbgl_init(NULL, &framebuffer) != 0) {
+		fprintf(stderr, "Failed to initialize framebuffer.\n");
+		return EXIT_FAILURE;
+	}
+
+	// Load a TGA texture
+	const char *texture_path = argv[1];
+	fbgl_tga_texture_t *texture = fbgl_load_tga_texture(texture_path);
+	if (!texture) {
+		fprintf(stderr, "Failed to load texture.\n");
+		fbgl_destroy(&framebuffer);
+		return EXIT_FAILURE;
+	}
+
+	// Set a background color (e.g., black)
+	fbgl_set_bg(&framebuffer, 0x000000); // Clear the framebuffer to black
+
+	// Texture movement parameters
+	int texture_x = 0; // Initial horizontal position of the texture
+	int texture_y = 100; // Initial vertical position of the texture
+	int dx = 5; // Horizontal speed (adjust for desired marquee speed)
+	int dy = 3; // Vertical speed (adjust for desired marquee speed)
+
+	// Main rendering loop
+	while (1) {
+		// Clear the framebuffer (set background)
+		fbgl_set_bg(&framebuffer, 0x000000);
+
+		// Draw the texture at the current position
+		fbgl_draw_texture(&framebuffer, texture, texture_x, texture_y);
+
+		// Move the texture by updating its position
+		texture_x += dx;
+		texture_y += dy;
+
+		// Reverse direction if the texture hits the screen boundary (X-axis)
+		if (texture_x <= 0 ||
+		    texture_x + texture->width >= framebuffer.width) {
+			dx = -dx; // Reverse horizontal direction when hitting the left or right edge
+		}
+
+		// Reverse direction if the texture hits the screen boundary (Y-axis)
+		if (texture_y <= 0 ||
+		    texture_y + texture->height >= framebuffer.height) {
+			dy = -dy; // Reverse vertical direction when hitting the top or bottom edge
+		}
+
+		usleep(50000); // Delay to make the marquee effect visible (adjust as needed)
+	}
+
+	// Wait for the user to press the escape key before exiting
+	printf("Press ESC to exit...\n");
+	while (!fbgl_check_esc_key()) {
+		// You can add additional rendering logic here if needed
+	}
+
+	// Clean up
+	fbgl_destroy_texture(texture);
+	fbgl_destroy(&framebuffer);
+
+	return EXIT_SUCCESS;
+}