X-Git-Url: http://git.mutantstargoat.com/user/nuclear/?a=blobdiff_plain;f=src%2Fmain.cc;h=f21c406d0850250875b5b087155493485b809fab;hb=458f4c5972fc6b0ba43ea42c3b8d5c211d8f3f3d;hp=b17009500a3da81831977c0cea4ae980c0233cb1;hpb=b7c92831285013b2a0783bccaf3d900545ebb5ba;p=laserbrain_demo

diff --git a/src/main.cc b/src/main.cc
index b170095..f21c406 100644
--- a/src/main.cc
+++ b/src/main.cc
@@ -2,211 +2,197 @@
 #include <stdlib.h>
 #include <assert.h>
 #include <GL/glew.h>
-#ifdef __APPLE__
-#include <GLUT/glut.h>
-#else
-#include <GL/glut.h>
-#endif
+#include <SDL2/SDL.h>
 #include "app.h"
-#include "sdr.h"
-#include "shadow.h"
-#include "texture.h"
-#include "mesh.h"
-#include "meshgen.h"
 
 static bool init();
-static void cleanup();
-static void display();
-static void idle();
-static void draw_scene();
-static void reshape(int x, int y);
-static void keyb(unsigned char key, int x, int y);
-static void mouse(int bn, int st, int x, int y);
-static void motion(int x, int y);
-static void passive_motion(int x, int y);
+static void process_event(SDL_Event *ev);
+static void proc_modkeys();
 
-static int win_width, win_height;
+static SDL_Window *win;
+static SDL_GLContext ctx;
+static bool fullscreen, mouse_grabbed;
+static bool quit;
 
-static float cam_dist = 0.25;
-static float cam_theta, cam_phi = 20;
-static int prev_mx, prev_my;
-static bool bnstate[8];
-
-static Mat4 view_matrix;
-
-static unsigned int start_time, prev_msec;
-
-static TextureSet texman;
+static unsigned int start_time;
+static unsigned int modkeys;
 
+static int scale_factor = 1;
 
 int main(int argc, char **argv)
 {
-	glutInitWindowSize(1024, 768);
-	glutInit(&argc, argv);
-	glutInitDisplayMode(GLUT_RGB | GLUT_DEPTH | GLUT_DOUBLE | GLUT_MULTISAMPLE);
-	glutCreateWindow("demo");
-
-	glutDisplayFunc(display);
-	glutIdleFunc(idle);
-	glutReshapeFunc(reshape);
-	glutKeyboardFunc(keyb);
-	glutMouseFunc(mouse);
-	glutMotionFunc(motion);
-	glutPassiveMotionFunc(passive_motion);
-
-	if(!init()) {
+	if(SDL_Init(SDL_INIT_VIDEO | SDL_INIT_TIMER) != 0) {
+		fprintf(stderr, "failed to initialize SDL\n");
 		return 1;
 	}
-	atexit(cleanup);
 
-	glutMainLoop();
-	return 0;
-}
+	SDL_GL_SetAttribute(SDL_GL_MULTISAMPLEBUFFERS, 1);
+	SDL_GL_SetAttribute(SDL_GL_MULTISAMPLESAMPLES, 8);
+	SDL_GL_SetAttribute(SDL_GL_FRAMEBUFFER_SRGB_CAPABLE, 1);
+
+	int defpos = SDL_WINDOWPOS_UNDEFINED;
+	unsigned int sdlflags = SDL_WINDOW_OPENGL | SDL_WINDOW_RESIZABLE | SDL_WINDOW_ALLOW_HIGHDPI;
+
+	if(!(win = SDL_CreateWindow("demo", defpos, defpos, 1024, 768, sdlflags))) {
+		// try again without sRGB capability
+		SDL_GL_SetAttribute(SDL_GL_FRAMEBUFFER_SRGB_CAPABLE, 0);
+		if(!(win = SDL_CreateWindow("demo", defpos, defpos, 1024, 768, sdlflags))) {
+			fprintf(stderr, "failed to create window\n");
+			SDL_Quit();
+			return 1;
+		}
+	}
 
-static bool init()
-{
-	glewInit();
+	if(!(ctx = SDL_GL_CreateContext(win))) {
+		fprintf(stderr, "failed to create OpenGL context\n");
+		SDL_Quit();
+		return 1;
+	}
+	SDL_GL_GetDrawableSize(win, &win_width, &win_height);
+	win_aspect = (float)win_width / (float)win_height;
 
-	glEnable(GL_MULTISAMPLE);
-	glEnable(GL_DEPTH_TEST);
-	glEnable(GL_CULL_FACE);
-	glEnable(GL_LIGHTING);
-	glEnable(GL_NORMALIZE);
+	if(!init()) {
+		SDL_Quit();
+		return 1;
+	}
+	app_reshape(win_width, win_height);
 
-	Mesh::use_custom_sdr_attr = false;
+	while(!quit) {
+		SDL_Event ev;
 
-	float ambient[] = {0.1, 0.1, 0.1, 0.0};
-	glLightModelfv(GL_LIGHT_MODEL_AMBIENT, ambient);
+		time_msec = SDL_GetTicks() - start_time;
+		while(SDL_PollEvent(&ev)) {
+			process_event(&ev);
+			if(quit) goto break_evloop;
+		}
 
-	glUseProgram(0);
+		app_display();
+	}
+break_evloop:
 
-	start_time = glutGet(GLUT_ELAPSED_TIME);
-	return true;
+	app_cleanup();
+	SDL_Quit();
+	return 0;
 }
 
-static void cleanup()
+void app_swap_buffers()
 {
-	texman.clear();
+	SDL_GL_SwapWindow(win);
 }
 
-static void update(float dt)
+void app_quit()
 {
-	texman.update();
+	quit = true;
 }
 
-static void set_light(int idx, const Vec3 &pos, const Vec3 &color)
+unsigned int app_get_modifiers()
 {
-	unsigned int lt = GL_LIGHT0 + idx;
-	float posv[] = { pos.x, pos.y, pos.z, 1 };
-	float colv[] = { color.x, color.y, color.z, 1 };
-
-	glEnable(lt);
-	glLightfv(lt, GL_POSITION, posv);
-	glLightfv(lt, GL_DIFFUSE, colv);
-	glLightfv(lt, GL_SPECULAR, colv);
+	return modkeys;
 }
 
-static void display()
+void app_resize(int x, int y)
 {
-	unsigned int msec = glutGet(GLUT_ELAPSED_TIME) - start_time;
-	float dt = (float)(msec - prev_msec) / 1000.0f;
-	prev_msec = msec;
-
-	glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
-
-	view_matrix = Mat4::identity;
-	view_matrix.pre_translate(0, 0, -cam_dist);
-	view_matrix.pre_rotate(deg_to_rad(cam_phi), 1, 0, 0);
-	view_matrix.pre_rotate(deg_to_rad(cam_theta), 0, 1, 0);
-
-	glMatrixMode(GL_MODELVIEW);
-	glLoadMatrixf(view_matrix[0]);
-
-	static const Vec3 lpos[] = { Vec3(-50, 75, 100), Vec3(100, 0, 30), Vec3(-10, -10, 60) };
-	set_light(0, lpos[0], Vec3(1.0, 0.8, 0.7) * 0.8);
-	set_light(1, lpos[1], Vec3(0.6, 0.7, 1.0) * 0.6);
-	set_light(2, lpos[2], Vec3(0.8, 1.0, 0.8) * 0.3);
-
-	update(dt);
-
-	draw_scene();
-
-	glutSwapBuffers();
-	assert(glGetError() == GL_NO_ERROR);
+	SDL_SetWindowSize(win, x, y);
 }
 
-static void idle()
+void app_fullscreen(bool fs)
 {
-	glutPostRedisplay();
+	SDL_SetWindowFullscreen(win, fs ? SDL_WINDOW_FULLSCREEN_DESKTOP : 0);
+	fullscreen = fs;
 }
 
-static void draw_scene()
+void app_toggle_fullscreen()
 {
-	glBegin(GL_QUADS);
-	glNormal3f(0, 1, 0);
-	glVertex3f(-30, -10, 30);
-	glVertex3f(30, -10, 30);
-	glVertex3f(30, -10, -30);
-	glVertex3f(-30, -10, -30);
-	glEnd();
+	app_fullscreen(!fullscreen);
 }
 
-static void reshape(int x, int y)
+bool app_is_fullscreen()
 {
-	win_width = x;
-	win_height = y;
-
-	glViewport(0, 0, x, y);
-
-	glMatrixMode(GL_PROJECTION);
-	glLoadIdentity();
-	gluPerspective(50.0, (float)x / (float)y, 0.01, 50.0);
+	return fullscreen;
 }
 
-static void keyb(unsigned char key, int x, int y)
+void app_grab_mouse(bool grab)
 {
-	switch(key) {
-	case 27:
-		exit(0);
-	}
+	/*SDL_SetWindowGrab(win, grab ? SDL_TRUE : SDL_FALSE);
+	SDL_ShowCursor(grab ? 1 : 0);
+	*/
+	SDL_SetRelativeMouseMode(grab ? SDL_TRUE : SDL_FALSE);
+	mouse_grabbed = grab;
 }
 
-static void mouse(int bn, int st, int x, int y)
+void app_toggle_grab_mouse()
 {
-	int bidx = bn - GLUT_LEFT_BUTTON;
-	bool down = st == GLUT_DOWN;
-
-	prev_mx = x;
-	prev_my = y;
-	bnstate[bidx] = down;
+	app_grab_mouse(!mouse_grabbed);
 }
 
-static void motion(int x, int y)
+bool app_is_mouse_grabbed()
 {
-	int dx = x - prev_mx;
-	int dy = y - prev_my;
-	prev_mx = x;
-	prev_my = y;
+	return mouse_grabbed;
+}
 
-	if(!dx && !dy) return;
 
-	if(bnstate[0]) {
-		cam_theta += dx * 0.5;
-		cam_phi += dy * 0.5;
+static bool init()
+{
+	glewInit();
 
-		if(cam_phi < -90) cam_phi = -90;
-		if(cam_phi > 90) cam_phi = 90;
-		glutPostRedisplay();
+	if(!app_init()) {
+		return false;
 	}
-	if(bnstate[2]) {
-		cam_dist += dy * 0.01;
-		if(cam_dist < 0.0) cam_dist = 0.0;
-		glutPostRedisplay();
+
+	start_time = SDL_GetTicks();
+	return true;
+}
+
+static void process_event(SDL_Event *ev)
+{
+	switch(ev->type) {
+	case SDL_QUIT:
+		quit = true;
+		break;
+
+	case SDL_KEYDOWN:
+	case SDL_KEYUP:
+		proc_modkeys();
+		app_keyboard(ev->key.keysym.sym, ev->key.state == SDL_PRESSED);
+		break;
+
+	case SDL_MOUSEBUTTONDOWN:
+	case SDL_MOUSEBUTTONUP:
+		proc_modkeys();
+		app_mouse_button(ev->button.button - SDL_BUTTON_LEFT, ev->button.state == SDL_PRESSED,
+				ev->button.x * scale_factor, ev->button.y * scale_factor);
+		break;
+
+	case SDL_MOUSEMOTION:
+		if(mouse_grabbed) {
+			app_mouse_delta(ev->motion.xrel, ev->motion.yrel);
+		} else {
+			app_mouse_motion(ev->motion.x * scale_factor, ev->motion.y * scale_factor);
+		}
+		break;
+
+	case SDL_WINDOWEVENT:
+		if(ev->window.event == SDL_WINDOWEVENT_RESIZED) {
+			SDL_GL_GetDrawableSize(win, &win_width, &win_height);
+			win_aspect = (float)win_width / (float)win_height;
+			scale_factor = win_width / ev->window.data1;
+			app_reshape(win_width, win_height);
+		}
+		break;
 	}
 }
 
-static void passive_motion(int x, int y)
+static void proc_modkeys()
 {
-	prev_mx = x;
-	prev_my = y;
+	modkeys = 0;
+	SDL_Keymod sdlmod = SDL_GetModState();
+	if(sdlmod & KMOD_SHIFT) {
+		modkeys |= MOD_SHIFT;
+	}
+	if(sdlmod & KMOD_ALT) {
+		modkeys |= MOD_ALT;
+	}
+	if(sdlmod & KMOD_CTRL) {
+		modkeys |= MOD_CTRL;
+	}
 }