Method perform0

src/main/java/field/graphics/Shader.java:244–338

()

		this.onError = onError;
		return this;
	}

	protected boolean perform0() {
		boolean work = false;

		GraphicsContext.checkError(() -> "on shader entry");

		Log.log("graphics.trace", () -> " checking :" + source.keySet());


		for (Map.Entry<Type, Source> s : source.entrySet()) {
			work |= s.getValue()
					.clean();
		}

		State name = GraphicsContext.get(this);

		work |= name.work;
		name.work = false;

		if (work) {
//			System.out.println(" -- shader has work to do in stage :"+name+" in context "+GraphicsContext.getContext());

			name.valid = true;
			for (Map.Entry<Type, Source> s : source.entrySet()) {
				Source.State state = GraphicsContext.get(s.getValue());
				if (s.getValue().status != 0 && state.name != -1 && !state.attachedTo.contains(name.name)) {
					GL20.glAttachShader(name.name, state.name);
					state.attachedTo.add(name.name);
				}
			}

			if (!source.containsKey(Type.compute)) {
				GL30.glBindFragDataLocation(name.name, 0, "_output");
				GL30.glBindFragDataLocation(name.name, 0, "_output0");
				GL30.glBindFragDataLocation(name.name, 1, "_output1");
				GL30.glBindFragDataLocation(name.name, 2, "_output2");
				GL30.glBindFragDataLocation(name.name, 3, "_output3");

			for (int i = 1; i < 16; i++)
				glBindAttribLocation(name.name, i, "attribute" + i);
			}

			GraphicsContext.checkError(() -> "before link and validate");
			name.valid = linkAndValidateNow(name.name);
			GraphicsContext.checkError(() -> "afer link and validate");

			if (name.valid) {
				if (introspection == null) {
					introspection = new ShaderIntrospection(this);
					introspection.reloadedAt = Instant.now();
				} else {
					introspection.reloadedAt = Instant.now();
					introspection.reloadedTimes++;
					introspection.invocationCountSinceReload = 0;
				}

				introspection.introspectNow();