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-rw-r--r--src/render.c146
1 files changed, 102 insertions, 44 deletions
diff --git a/src/render.c b/src/render.c
index e06c967..9e7f1a4 100644
--- a/src/render.c
+++ b/src/render.c
@@ -6,67 +6,125 @@
*/
#include "render.h"
+#define HAVE_STRUCT_TIMESPEC
-void render_init(Config *config, u32 (*sfunc) (double, double, u32))
+void render_init(Config *config, u32 (*sfunc) (long double, long double, u32))
{
+ delta = glutGet(GLUT_ELAPSED_TIME);
+ 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;
_sfunc = sfunc;
+ s_arr = (u32 *) malloc((_config->width) * (_config->height) * sizeof(u32));
+ calculate(x_min, y_min, x_max, y_max, _sfunc, s_arr);
+ //glutInit(0, NULL);
+ glutInitWindowPosition(0, 0);
+ glutInitWindowSize(_config->width, _config->height);
+ glutInitDisplayMode(GLUT_RGBA | GLUT_DOUBLE | GLUT_DEPTH);
+ glutCreateWindow("Renderer");
+ glutDisplayFunc(gl_render);
+ glutIdleFunc(gl_idle);
- ui_render.window = GTK_WINDOW(gtk_window_new(GTK_WINDOW_TOPLEVEL));
- gtk_window_set_default_size(ui_render.window, config->width, config->height);
-
- ui_render.frame = GTK_FRAME(gtk_frame_new(NULL));
- gtk_container_add(GTK_CONTAINER(ui_render.window), ui_render.frame);
-
- ui_render.drawing_area = GTK_DRAWING_AREA(gtk_drawing_area_new());
- gtk_widget_set_size_request(GTK_WIDGET(ui_render.drawing_area), config->width, config->height);
- g_signal_connect(G_OBJECT(ui_render.drawing_area), "draw", G_CALLBACK(on_draw), NULL);
- gtk_container_add(GTK_CONTAINER(ui_render.frame), ui_render.drawing_area);
+ glGenTextures(1, &tex);
+ glBindTexture(GL_TEXTURE_2D, 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, s_arr);
+ glBindTexture(GL_TEXTURE_2D, 0);
+ //glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, _config->width, _config->height, 0, GL_RGBA, GL_UNSIGNED_BYTE, s_arr);
+ glMatrixMode(GL_PROJECTION);
+ glOrtho(0, _config->width, 0, _config->height, -1, 1);
+ glMatrixMode(GL_MODELVIEW);
+ glutMainLoop();
}
void render_show()
{
- gtk_widget_show_all(GTK_WIDGET(ui_render.window));
+
}
-void on_draw(GtkWidget *widget, cairo_t *cr, gpointer data)
+void gl_render(void)
{
- cairo_surface_t *image;
- // TODO: MUSS UNBEDINGT SEPARAT GECALLT WERDEN, SONST KEINE 60 FPS
- image = render_surface();
- cairo_set_source_surface(cr, image, 0, 0);
- cairo_paint(cr);
+ glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
+ glBindTexture(GL_TEXTURE_2D, 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);
+
+// glBegin(GL_TRIANGLES);
+// glVertex3f(-0.5,-0.5,0.0);
+// glVertex3f(0.5,0.0,0.0);
+// glVertex3f(0.0,0.5,0.0);
+// glEnd();
+
+ glutSwapBuffers();
}
-cairo_surface_t *render_surface()
+void calculate(long double x_min, long double y_min, long double x_max, long double y_max, u32 (*sfunc) (long double, long double, u32), u32 *arr)
{
- cairo_surface_t *result;
- unsigned char *current_row;
- int stride;
- double x_math, y_math;
- u32 iterations;
+ pthread_t thread;
+ ThreadArgs *args = (ThreadArgs *) malloc(_config->threads * sizeof(ThreadArgs));
+ for(u8 i = 0; i < _config->threads; i++)
+ {
+ args[i] = (ThreadArgs) { .tc = _config->threads, .tid = i, .x_min = x_min, .y_min = y_min, .x_max = x_max, .y_max = y_max, .sfunc = sfunc, .arr = arr };
+ pthread_create(&thread, NULL, calculate_t, (void *)&args[i]);
+ }
+ pthread_join(thread, NULL);
+}
- result = cairo_image_surface_create(CAIRO_FORMAT_RGB24, _config->width, _config->height);
- if (cairo_surface_status(result) != CAIRO_STATUS_SUCCESS)
- return result;
+void calculate_t(void *args)
+{
+ ThreadArgs *_args = (ThreadArgs *)args;
+ long double x_math, y_math;
+ u32 iterations;
+ for (u32 y = (_config->height/_args->tc)*(_args->tid); y < _config->height; y++)
+ {
+ for (u32 x = 0; x < _config->width; x++)
+ {
+ x_math = _args->x_min + ((long double) x * (_args->x_max - _args->x_min)) / _config->width;
+ y_math = _args->y_min + ((long double) (_config->height - y) * (_args->y_max - _args->y_min)) / _config->height;
+ iterations = _args->sfunc(x_math, y_math, _config->iterations);
+ _args->arr[COORDS(x, y, _config->width)] = (((1<<24)-1)*iterations)/_config->iterations;
+ }
+ }
+}
- cairo_surface_flush(result);
- current_row = cairo_image_surface_get_data(result);
- stride = cairo_image_surface_get_stride(result);
- for (int y = 0; y < _config->height; y++) {
- u32 *row = (void *) current_row;
- for (int x = 0; x < _config->width; x++) {
- x_math = /*x_MIN*/-2.0 + ((double) x * (/*x_MAX*/1.0 - /*x_MIN*/-2.0)) / _config->width;
- y_math = /*y_MIN*/-1.0 + ((double) (_config->height - y) * (/*y_MAX*/1.0 - /*y_MIN*/-1.0)) / _config->height;
- iterations = _sfunc(x_math, y_math, _config->iterations);
- row[x] = (((1<<24)-1)*iterations)/_config->iterations;
-// if (iterations > 1<<8)
-// printf("schon gruen\n");
- }
+long double zoom_func(long double ft, long double s)
+{
+ return (s - expl(-ft));
+}
- current_row += stride;
- }
- cairo_surface_mark_dirty(result);
- return result;
+void gl_idle(void)
+{
+ calculate(x_min, y_min, x_max, y_max, _sfunc, s_arr);
+ //glGenTextures(1, &tex);
+ glBindTexture(GL_TEXTURE_2D, 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, s_arr);
+ glBindTexture(GL_TEXTURE_2D, 0);
+ int t = glutGet(GLUT_ELAPSED_TIME);
+ dt = (t - delta) / 1000.0;
+ delta = t;
+ ft+=(0.1*dt);
+ x_min = x_min_s + zoom_func(ft, (long double)2.0 + _config->to_x);
+ y_min = y_min_s + zoom_func(ft, (long double)1.0 + _config->to_y);
+ x_max = x_max_s - zoom_func(ft, (long double)1.0 - _config->to_x);
+ y_max = y_max_s - zoom_func(ft, (long double)1.0 - _config->to_y);
+ glutPostRedisplay();
}
+
+
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