skybox working
[demo] / src / main.cc
index 1e45c4b..7061bb6 100644 (file)
@@ -1,3 +1,5 @@
+#include <GL/glew.h>
+
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
@@ -5,21 +7,23 @@
 
 #include <gmath/gmath.h>
 
+#include "gfxapi.h"
 #include "global.h"
 
 /* TODO: fix those */
 #include "camera.h"
 #include "mesh.h"
 #include "object.h"
+#include "renderer.h"
 #include "scene.h"
-#include "shader_manager.h"
+#include "texture.h"
 
 #include "opengl/opengl.h"
 #include "vulkan/vk.h"
 
 /* static functions */
 
-static bool init();
+static bool init(Gfx_API api);
 static void cleanup();
 static void display();
 
@@ -32,14 +36,12 @@ static void clbk_reshape(GLFWwindow *win, int width, int height);
 
 /* global variables */
 
-bool use_vulkan;
 Mat4 mprojection;
 
 GLFWwindow *win;
 int win_w = 800;
 int win_h = 600;
 
-OrbitCamera *camera;
 float phi = 25;
 float theta = 0;
 float dist = 4;
@@ -47,28 +49,39 @@ float dist = 4;
 ShaderManager *sdr_man;
 
 /* variables */
+
 static float aspect;
+static OrbitCamera *camera;
+
+static Scene *scene_cow;
+static Renderer *rcow;
 
-// TODO: remove just for test:
-static Scene scene;
+static Scene *scene_ground;
+static Renderer *rground; // default renderer
+static Texture *gskybox;
+
+/* *** */
 
 int main(int argc, char **argv)
 {
+       Gfx_API api;
+
        for(int i=0; i<argc; ++i) {
                if(strcmp(argv[i], "-opengl") == 0) {
-                       use_vulkan = false;
+                       api = GFX_GL;
                        printf("Backend: OpenGL.\n");
                }
                else if(strcmp(argv[i], "-vulkan") == 0) {
-                       use_vulkan = true;
+                       api = GFX_VK;
                        printf("Backend: Vulkan.\n");
                }
                else {
+                       api = GFX_GL;
                        printf("No backend specified. Using OpenGL.\n");
                }
        }
 
-       if(!init()) {
+       if(!init(api)) {
                fprintf(stderr, "Failed to initialize program.\n");
                return 1;
        }
@@ -78,6 +91,9 @@ int main(int argc, char **argv)
        glfwSetMouseButtonCallback(win, clbk_mouse);
        glfwSetWindowSizeCallback(win, clbk_reshape);
 
+       glfwGetWindowSize(win, &win_w, &win_h);
+       clbk_reshape(win, win_w, win_h);
+
        while(!glfwWindowShouldClose(win)) {
                display();
 
@@ -85,38 +101,62 @@ int main(int argc, char **argv)
                glfwPollEvents();
        }
 
-       atexit(cleanup);
+       cleanup();
+       // atexit(cleanup);
        return 0;
 }
 
-static bool init()
+static bool init(Gfx_API api)
 {
-       if(use_vulkan) {
-               if(!init_vulkan())
-                       return false;
-       }
-       else {
-               if(!init_opengl())
-                       return false;
-       }
+       if(!gfx_init(api))
+               return false;
 
        sdr_man = new ShaderManager;
 
        camera = new OrbitCamera;
        camera->set_orbit_params(phi, theta, dist);
 
-       if(!scene.load("data/spot/spot_control_mesh.obj")) {
-               fprintf(stderr, "Failed to load scene.\n");
+       scene_ground = new Scene;
+       if(!scene_ground->load("data/ground.obj")) {
+               fprintf(stderr, "Failed to load scene: ground.obj.\n");
+               return false;
+       }
+
+       scene_cow = new Scene;
+       if(!scene_cow->load("data/spot/spot.obj")) {
+               fprintf(stderr, "Failed to load scene: spot.obj.\n");
+               return false;
+       }
+
+       rground = new Renderer;
+       rground->camera = camera;
+       rground->scene = scene_ground;
+
+       if(!rground->create()) {
+               fprintf(stderr, "Failed to create default renderer.\n");
+               return false;
+       }
+
+       gskybox = gfx_create_texture();
+       gskybox->load("data/cubemap/cubemap.jpg");
+       rground->set_sky_tex(gskybox);
+
+       rcow = new Renderer;
+       rcow->camera = camera;
+       rcow->scene = scene_cow;
+
+       if(!rcow->create()) {
+               fprintf(stderr, "Failed to create renderer for cows.\n");
                return false;
        }
 
 // TODO delete: debugging
-       for(size_t i=0; i<scene.objects.size(); ++i) {
+       for(size_t i=0; i<scene_ground->objects.size(); ++i) {
                printf("object: %d\n", (int)i);
-               printf("mesh: %s\n", scene.objects[i]->mesh->name.c_str());
-               printf("material: %s\n", scene.objects[i]->material->name.c_str());
+               printf("mesh: %s\n", scene_ground->objects[i]->mesh->name.c_str());
+               printf("material: %s\n", scene_ground->objects[i]->material->name.c_str());
                printf("transform:\n");
-               scene.objects[i]->transform.print();
+               scene_ground->objects[i]->transform.print();
        }
        return true;
 }
@@ -126,12 +166,13 @@ static void cleanup()
        delete sdr_man;
        delete camera;
 
-       if(use_vulkan) {
-               cleanup_vulkan();
-       }
-       else {
-               cleanup_opengl();
-       }
+       delete scene_cow;
+       delete rcow;
+
+       delete scene_ground;
+       delete rground;
+
+       gfx_cleanup();
 }
 
 static void clbk_key(GLFWwindow *win, int key, int scancode, int action, int mods)
@@ -142,60 +183,56 @@ static void clbk_key(GLFWwindow *win, int key, int scancode, int action, int mod
 }
 
 static double prev_x, prev_y;
-static int button;
+static bool button[8];
 
 static void clbk_motion(GLFWwindow *win, double x, double y)
 {
-       switch(button) {
-       case GLFW_MOUSE_BUTTON_LEFT:
-               theta += x - prev_x;
-               phi += y - prev_y;
+       double dx = x - prev_x;
+       double dy = y - prev_y;
+
+       prev_x = x;
+       prev_y = y;
+
+       if(button[0]) {
+               theta += dx;
+               phi += dy;
 
                if(phi < -90)
                        phi = -90;
                if(phi > 90)
                        phi = 90;
+       }
 
-               break;
-
-       case GLFW_MOUSE_BUTTON_RIGHT:
-               dist *= (y - prev_y) * 0.01 + 1;
+       if(button[1]) {
+               dist += dy * 0.1;
                if(dist < 0.0) {
                        dist = 0.0;
                }
-               break;
        }
-
-       prev_x = x;
-       prev_y = y;
 }
 
 static void clbk_mouse(GLFWwindow *win, int bn, int action, int mods)
 {
-       button = bn;
+       button[bn] = action == GLFW_PRESS;
        glfwGetCursorPos(win, &prev_x, &prev_y);
 }
 
 static void clbk_reshape(GLFWwindow *win, int width, int height)
 {
-       if(use_vulkan) {
-               //TODO
-               return;
-       }
-       else {
-               glViewport(0, 0, width, height);
-               aspect = (float)width / (float)height;
-               mprojection = calc_projection_matrix(1000, 0.5, aspect, 45);
-       }
+       gfx_viewport(0, 0, width, height);
+       aspect = (float)width / (float)height;
+       mprojection = calc_projection_matrix(45, aspect, 0.5, 1000.0);
+
+       win_h = height;
+       win_w = width;
 }
 
 static void display()
 {
-       if(use_vulkan) {
-               display_vulkan();
-       }
-       else {
-               display_opengl();
-               scene.objects[0]->mesh->draw();
-       }
+       camera->set_orbit_params(phi, theta, dist);
+
+       gfx_clear(0.76, 0.3, 0.43);
+
+       rground->draw();
+       rcow->draw();
 }
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