win32

commit d62afb6f23a6e22c3a3293c6b24756ba8ba08f0f
parent 82d0689a7959e25611d5dfcc0d894e4fdb231212
Author: Matsuda Kenji <info@mtkn.jp>
Date:   Wed, 17 Dec 2025 13:41:06 +0900

composite

Diffstat:
M
win32.c
 | 
22
+++++++++++++++++++---

1 file changed, 19 insertions(+), 3 deletions(-)
diff --git a/win32.c b/win32.c
@@ -48,8 +48,8 @@ int main(void) {
 	Picture picture = XRenderCreatePicture(display, window, &pictformat, 0, NULL);
 	XRenderColor color = { .red = 0xffff, .green = 0xffff, .blue = 0xeaea, .alpha = 0xffff };
 	XRectangle rectangle = { .x = 0, .y = 0, .width = 800, .height = 600 };
+	XRenderFillRectangles(display, PictOpSrc, picture, &color, &rectangle, 1);
 
-/*
 	XVisualInfo vi32;
 	if (findVisual32(display, &vi32) < 0) {
 		fatal("32bit-deep visual info not found");
@@ -66,18 +66,34 @@ int main(void) {
 		vi32.visual,
 		CWBorderPixel|CWColormap,
 		&attr32);
-*/	
+	Pixmap pixmap32 = XCreatePixmap(display, window32, 800, 600, 32);
+	Picture picture32 = XRenderCreatePicture(display, pixmap32, &pictformat32, 0, NULL);
+	XRenderColor colors[2] = {
+		{ .red = 0xffff, .alpha = 0x0fff },
+		{ .green = 0xffff, .alpha = 0x0fff },
+	};
+	XRectangle rectangles[2] = {
+		{ .x = 100, .y = 100, .width = 300, .height = 400 },
+		{ .x = 200, .y = 200, .width = 300, .height = 200 },
+	};
+	XRenderFillRectangles(display, PictOpSrc, picture32, &color, &rectangle, 1);
+	XRenderFillRectangles(display, PictOpOver, picture32, &colors[0], &rectangles[0], 1);
+	XRenderFillRectangles(display, PictOpOver, picture32, &colors[1], &rectangles[1], 1);
+
 	XSync(display, 0);
 	int quit = 0;
 	XEvent event;
 	while (!quit) {
+		XRenderFillRectangles(display, PictOpSrc, picture, &color, &rectangle, 1);
+		XRenderComposite(display, PictOpOver, picture32, 0, picture, 0, 0, 0, 0, 0, 0, 800, 600);
 		XNextEvent(display, &event);
 		if (event.type == KeyPress && event.xkey.keycode == 49) {
 			quit = 1;
 		}
-		XRenderFillRectangles(display, PictOpSrc, picture, &color, &rectangle, 1);
 	}
 
+	XFreePixmap(display, pixmap32);
+	XRenderFreePicture(display, picture);
 	XCloseDisplay(display);
 }