add SDL2_image library

[blank.git] / src / app.cpp

diff --git a/src/app.cpp b/src/app.cpp
index d54e8df56d1d0e875da4e599cca3ae67ea4b67cb..7ecbb744ac65ce5be365e8548fac7ef13788a275 100644 (file)
--- a/src/app.cpp
+++ b/src/app.cpp
@@ -7,9 +7,9 @@
 namespace {
 
 constexpr GLfloat vtx_coords[] = {
-       -1.0f, -1.0f, -1.0f,
-        1.0f, -1.0f, -1.0f,
-        0.0f,  1.0f, -1.0f,
+       -1.0f, -1.0f, -5.0f,
+        1.0f, -1.0f, -5.0f,
+        0.0f,  1.0f, -5.0f,
 };
 
 }
@@ -18,13 +18,14 @@ namespace blank {
 
 Application::Application()
 : init_sdl()
+, init_img()
 , init_gl()
 , window()
 , ctx(window.CreateContext())
 , init_glew()
 , program()
+, cam()
 , vtx_buf(0)
-, mvp()
 , mvp_handle(0)
 , running(false) {
        GLContext::EnableVSync();
@@ -60,20 +61,6 @@ Application::Application()
        glBindBuffer(GL_ARRAY_BUFFER, vtx_buf);
        glBufferData(GL_ARRAY_BUFFER, sizeof(vtx_coords), vtx_coords, GL_STATIC_DRAW);
 
-       glm::mat4 projection = glm::perspective(
-               45.0f, // FOV in degrees
-               1.0f,  // aspect ratio
-               0.1f,  // near clip
-               100.0f // far clip
-       );
-       glm::mat4 view = glm::lookAt(
-               glm::vec3(0, 0,  0),  // observer
-               glm::vec3(0, 0, -1), // target
-               glm::vec3(0, 1,  0) // up
-       );
-       glm::mat4 model(1.0f); // identity: no transformation
-       mvp = projection * view * model;
-
        mvp_handle = program.UniformLocation("MVP");
 
        glClearColor(0.0, 0.0, 0.0, 1.0);
@@ -108,6 +95,15 @@ void Application::HandleEvents() {
                        case SDL_QUIT:
                                running = false;
                                break;
+                       case SDL_WINDOWEVENT:
+                               switch (event.window.event) {
+                                       case SDL_WINDOWEVENT_RESIZED:
+                                               cam.Viewport(event.window.data1, event.window.data2);
+                                               break;
+                                       default:
+                                               break;
+                               }
+                               break;
                        default:
                                break;
                }
@@ -119,6 +115,8 @@ void Application::Render() {
 
        program.Use();
 
+       glm::mat4 model(1.0f); // identity: no transformation
+       glm::mat4 mvp(cam.MakeMVP(model));
        glUniformMatrix4fv(mvp_handle, 1, GL_FALSE, &mvp[0][0]);
 
        glEnableVertexAttribArray(0);