From cc884ee71f017d9493da22565fc33e6828da123d Mon Sep 17 00:00:00 2001
From: Leonard Kugis <leonardkugis@gmail.com>
Date: Sun, 28 Jan 2018 22:26:04 +0100
Subject: Added point and click functionality

---
 src/render_cpu.c | 54 +++++++++++++++++++++++++++++++++++++++++++++++++++---
 1 file changed, 51 insertions(+), 3 deletions(-)

(limited to 'src/render_cpu.c')

diff --git a/src/render_cpu.c b/src/render_cpu.c
index 5065d4d..8f8d439 100644
--- a/src/render_cpu.c
+++ b/src/render_cpu.c
@@ -8,6 +8,15 @@
 #include "render_cpu.h"
 #define HAVE_STRUCT_TIMESPEC
 
+void idle_cpu_dummy(void)
+{
+//	glBindTexture(GL_TEXTURE_2D, config_cpu->tex);
+//	glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, config_cpu->width,
+//			config_cpu->height, 0, GL_RGBA, GL_UNSIGNED_BYTE, config_cpu->arr);
+//	glBindTexture(GL_TEXTURE_2D, 0);
+	glutPostRedisplay();
+}
+
 void init_cpu(CpuConfig *config)
 {
 	config_cpu = config;
@@ -21,10 +30,15 @@ void init_cpu(CpuConfig *config)
 	y_max = y_max_s;
 
 	calculate(x_min, y_min, x_max, y_max, config_cpu->set_func, config_cpu->arr);
+	t_old_cpu = glutGet(GLUT_ELAPSED_TIME);
 }
 
 void render_cpu(void)
 {
+	glBindTexture(GL_TEXTURE_2D, config_cpu->tex);
+		glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, config_cpu->width,
+				config_cpu->height, 0, GL_RGBA, GL_UNSIGNED_BYTE, config_cpu->arr);
+		glBindTexture(GL_TEXTURE_2D, 0);
 	glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
 	glBindTexture(GL_TEXTURE_2D, config_cpu->tex);
 	glEnable(GL_TEXTURE_2D);
@@ -66,6 +80,9 @@ void calculate_t(void *args)
 			x_math = _args->x_min + ((d64) x * (_args->x_max - _args->x_min)) / config_cpu->width;
 			y_math = _args->y_min + ((d64) (config_cpu->height - y) * (_args->y_max - _args->y_min)) / config_cpu->height;
 			iterations = _args->sfunc(x_math, y_math, config_cpu->iterations);
+//			color[2].s0 = ((1.0f + native_cos(c)) * 0.5f) * 255;
+//			color[2].s1 = ((1.0f + native_cos(2.0f * c + 2.0f * 3.1416f / 3.0f)) * 0.5f) * 255;
+//			color[2].s2 = ((1.0f + native_cos(c - 2.0f * 3.1416f / 3.0f)) * 0.5f) * 255;
 			_args->arr[COORDS(x, y, config_cpu->width)] = (((1<<24)-1)*iterations)/config_cpu->iterations;
 		}
 	}
@@ -73,15 +90,14 @@ void calculate_t(void *args)
 
 void idle_cpu(void)
 {
-	static int t_old;
 	int t = 0, delta = 0;
 	do
 	{
 		t = glutGet(GLUT_ELAPSED_TIME);
-		delta = t - t_old;
+		delta = t - t_old_cpu;
 	}
 	while(delta < 16); // TODO: Hardcoded FPS
-	t_old = t;
+	t_old_cpu = t;
 
 	calculate(x_min, y_min, x_max, y_max, config_cpu->set_func, config_cpu->arr);
 	//glGenTextures(1, &tex);
@@ -97,3 +113,35 @@ void idle_cpu(void)
 	y_max = y_max_s - config_cpu->zoom_func(ft, (d64)1.0 - config_cpu->to_y);
 	glutPostRedisplay();
 }
+
+void keyboard_cpu(unsigned char key, int mouseX, int mouseY)
+{
+	switch(key)
+	{
+	case 'i':
+		config_cpu->iterations++;
+		break;
+	case 'd':
+		config_cpu->iterations--;
+		break;
+	}
+}
+
+void mouse_cpu(int button, int state, int x, int y)
+{
+	if (state == GLUT_DOWN)
+	{
+		switch(button)
+		{
+		case GLUT_LEFT_BUTTON:
+			config_cpu->to_x = x_min + ((d64) x * (x_max - x_min)) / config_cpu->width;
+			config_cpu->to_y = y_min + ((d64) (config_cpu->height - y) * (y_max - y_min)) / config_cpu->height;
+			t_old_cpu = glutGet(GLUT_ELAPSED_TIME);
+			glutIdleFunc(idle_cpu);
+			break;
+		case GLUT_RIGHT_BUTTON:
+			glutIdleFunc(idle_cpu_dummy);
+			break;
+		}
+	}
+}
-- 
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