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authorLeonard Kugis <leonardkugis@gmail.com>2018-02-01 01:27:30 +0100
committerLeonard Kugis <leonardkugis@gmail.com>2018-02-01 01:27:30 +0100
commit18e5b2554b4cd73207e936e76e32c9d376cd1ba8 (patch)
tree917dba471db5b3c40c78f247a601e8db2d73056b /src/render.c
parentbe4f2582062196dd6ecf393f55566367bc1dfa9f (diff)
abstracted rendering, cpu currently crashing randomly while zooming
Diffstat (limited to 'src/render.c')
-rw-r--r--src/render.c184
1 files changed, 162 insertions, 22 deletions
diff --git a/src/render.c b/src/render.c
index e10e44b..30f1b7a 100644
--- a/src/render.c
+++ b/src/render.c
@@ -11,6 +11,15 @@
void init_render(config_t *config)
{
+ x_min_s = -2.0;
+ x_max_s = 1.0;
+ y_min_s = -1.0;
+ y_max_s = 1.0;
+ x_min = x_min_s;
+ x_max = x_max_s;
+ y_min = y_min_s;
+ y_max = y_max_s;
+
_config = config;
s_arr = (u32 *) malloc((_config->width) * (_config->height) * sizeof(u32));
_config->arr = s_arr;
@@ -40,34 +49,31 @@ void init_render(config_t *config)
{
case MODE_CPU:
init_cpu(_config);
- glutDisplayFunc(render_cpu);
- if (_config->zoomSpecific)
- {
- glutIdleFunc(idle_cpu);
- }
- else
- {
- glutIdleFunc(idle_cpu_dummy);
- glutKeyboardFunc(keyboard_cpu);
- glutMouseFunc(mouse_cpu);
- }
+ _render = render_cpu;
+ _idle = idle_cpu;
break;
case MODE_OPENCL:
init_opencl(_config);
- glutDisplayFunc(render_opencl);
- if (_config->zoomSpecific)
- {
- glutIdleFunc(idle_opencl);
- }
- else
- {
- glutIdleFunc(idle_opencl_dummy);
- glutKeyboardFunc(keyboard_opencl);
- glutMouseFunc(mouse_opencl);
- }
+ _render = render_opencl;
+ _idle = idle_opencl;
break;
}
+ if (_config->zoomSpecific)
+ {
+ glutIdleFunc(idle);
+ }
+ else
+ {
+ glutIdleFunc(idle_dummy);
+ glutKeyboardFunc(keyboard);
+ glutMouseFunc(mouse);
+ }
+
+ glutDisplayFunc(render);
+
+ t_old = glutGet(GLUT_ELAPSED_TIME);
+
glutMainLoop();
}
@@ -81,3 +87,137 @@ d64 zoom_func(d64 ft, d64 s)
{
return (s - expl(-ft));
}
+
+void idle_dummy(void)
+{
+ double xmin = (double) x_min;
+ double ymin = (double) y_min;
+ double xmax = (double) x_max;
+ double ymax = (double) y_max;
+ printf("x_min: %lf, y_min: %lf, x_max: %lf, y_max: %lf\n", xmin, ymin, xmax, ymax);
+ glutPostRedisplay();
+}
+
+void idle(void)
+{
+ int t = 0, delta = 0;
+ do
+ {
+ t = glutGet(GLUT_ELAPSED_TIME);
+ delta = t - t_old;
+ } while (delta < 16); // TODO: Hardcoded FPS
+ t_old = t;
+
+ _idle();
+
+ //glGenTextures(1, &tex);
+ glBindTexture(GL_TEXTURE_2D, _config->tex);
+ //glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
+ //glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
+ glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, _config->width,
+ _config->height, 0, GL_RGBA, GL_UNSIGNED_BYTE,
+ _config->arr);
+ glBindTexture(GL_TEXTURE_2D, 0);
+ ft += (_config->speed * (delta / 1000.0));
+ x_min = x_min_s
+ + _config->zoom_func(ft,
+ (double) 2.0 + _config->to_x);
+ y_min = y_min_s
+ + _config->zoom_func(ft,
+ (double) 1.0 + _config->to_y);
+ x_max = x_max_s
+ - _config->zoom_func(ft,
+ (double) 1.0 - _config->to_x);
+ y_max = y_max_s
+ - _config->zoom_func(ft,
+ (double) 1.0 - _config->to_y);
+ glutPostRedisplay();
+}
+
+void render(void)
+{
+ _render(x_min, y_min, x_max, y_max);
+
+ glBindTexture(GL_TEXTURE_2D, _config->tex);
+ glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, _config->width,
+ _config->height, 0, GL_RGBA, GL_UNSIGNED_BYTE,
+ _config->arr);
+ glBindTexture(GL_TEXTURE_2D, 0);
+
+ glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
+ glBindTexture(GL_TEXTURE_2D, _config->tex);
+ glEnable(GL_TEXTURE_2D);
+
+ glBegin(GL_QUADS);
+ glTexCoord2i(0, 0);
+ glVertex2i(0, 0);
+ glTexCoord2i(0, 1);
+ glVertex2i(0, _config->height);
+ glTexCoord2i(1, 1);
+ glVertex2i(_config->width, _config->height);
+ glTexCoord2i(1, 0);
+ glVertex2i(_config->width, 0);
+ glEnd();
+
+ glDisable(GL_TEXTURE_2D);
+ glBindTexture(GL_TEXTURE_2D, 0);
+ glutSwapBuffers();
+}
+
+void keyboard(unsigned char key, int mouseX, int mouseY)
+{
+ d64 w = (x_max - x_min), h = (y_max - y_min);
+ switch (key)
+ {
+ case 'w':
+ y_max += (h / 10.0);
+ y_min += (h / 10.0);
+ break;
+ case 'a':
+ x_max -= (w / 10.0);
+ x_min -= (w / 10.0);
+ break;
+ case 's':
+ y_max -= (h / 10.0);
+ y_min -= (h / 10.0);
+ break;
+ case 'd':
+ x_max += (w / 10.0);
+ x_min += (w / 10.0);
+ break;
+ case 'i':
+ _config->iterations++;
+ break;
+ case 'k':
+ _config->iterations--;
+ break;
+ }
+}
+
+void mouse(int button, int state, int x, int y)
+{
+ if (state == GLUT_DOWN)
+ {
+ switch (button)
+ {
+ case GLUT_LEFT_BUTTON:
+ if (_config->speed < 0)
+ _config->speed = (-1) * _config->speed;
+ break;
+ case GLUT_RIGHT_BUTTON:
+ if (_config->speed > 0)
+ _config->speed = (-1) * _config->speed;
+ break;
+ }
+ _config->to_x = x_min
+ + ((d64) x * (x_max - x_min)) / _config->width;
+ _config->to_y = y_min
+ + ((d64) y * (y_max - y_min)) / _config->height;
+ t_old = glutGet(GLUT_ELAPSED_TIME);
+ glutIdleFunc(idle);
+ }
+ else if (state == GLUT_UP)
+ {
+ glutIdleFunc(idle_dummy);
+ }
+}