void shutdown(void)
{
SGE_ASSERT(details::g_window != NULL);
SGE_ASSERT(details::g_gl_context != NULL);
SGE_ASSERT(s_imgui_context != NULL);
shutdown_test();
s_program.Destroy();
ImGui::SetCurrentContext(s_imgui_context);
ImGui_ImplOpenGL3_Shutdown();
ImGui_ImplSDL2_Shutdown();
ImGui::SetCurrentContext(NULL);
ImGui::DestroyContext(s_imgui_context);
s_imgui_context = NULL;
if (details::g_gl_context == SDL_GL_GetCurrentContext())
SDL_GL_MakeCurrent(details::g_window, NULL);
SDL_GL_DeleteContext(details::g_gl_context);
details::g_gl_context = NULL;
SDL_DestroyWindow(details::g_window);
details::g_window = NULL;
details::g_window_id = 0;
}
static bool init_program(void)
{
if (!s_program.Create())
return false;
SGE_LOGD("Building vertex shader...\n");
if (!s_program.AddShader(GL_VERTEX_SHADER, s_vertex_shader_source)) {
SGE_LOGE("Failed to build vertex shader: %s\n", s_program.InfoLog());
s_program.Destroy();
return false;
}
SGE_LOGD("Building fragment shader...\n");
if (!s_program.AddShader(GL_FRAGMENT_SHADER, s_fragment_shader_source)) {
SGE_LOGE("Failed to build fragment shader: %s\n", s_program.InfoLog());
s_program.Destroy();
return false;
}
SGE_LOGD("Linking program...\n");
if (!s_program.Link()) {
SGE_LOGE("Failed to link program: %s\n", s_program.InfoLog());
s_program.Destroy();
return false;
}
// clearing uniform locations...
for (int i = 0; i < UNIFORM_FLOAT_MAX; ++i)
s_uniform_float_loc[i] = -1;
for (int i = 0; i < UNIFORM_MAT4_MAX; ++i)
s_uniform_mat4_loc[i] = -1;
// getting uniform locations...
s_uniform_mat4_loc[UNIFORM_MODEL_MATRIX] = s_program.UniformLocation("sge_model_matrix");
s_uniform_mat4_loc[UNIFORM_VIEW_MATRIX] = s_program.UniformLocation("sge_view_matrix");
s_uniform_mat4_loc[UNIFORM_PROJECTION_MATRIX] = s_program.UniformLocation("sge_projection_matrix");
return true;
}