void load_obj(t_object *obj, char *filename)
{
int fd;
char *line;
ft_exit((fd = open(filename, O_RDONLY)) < 0, "Can't read file");
obj->vertex_buffer_size = obj->index_buffer_size = obj->normal_buffer_size
= obj->tex_buffer_size = 0;
while (get_next_line(fd, &line) > 0)
{
if (ft_strlen(line) < 3 || line[0] == '#')
;
else if (line[0] == 'o')
ft_strcpy((char *)obj->name, line + 2);
else if (line[0] == 'v' && line[1] == ' ')
load_vertex(obj, line + 1);
else if (line[0] == 'v' && line[1] == 'n')
load_normal(obj, line + 2);
else if (line[0] == 'v' && line[1] == 't')
load_tex(obj, line + 2);
else if (line[0] == 'f' && line[1] == ' ')
load_index(obj, line + 1);
ft_memdel((void **)&line);
}
close(fd);
print_obj(obj);
}
GLFWwindow *setup_program(t_properties *properties)
{
static const float verts[] = {-1, 1, -1, -1, 1, -1, 1, 1};
static const GLuint inds[] = {0, 1, 3, 1, 2, 3};
GLFWwindow *window;
properties->width = 1000;
properties->height = 1000;
window = make_glfw(properties->width, properties->height);
glClearColor(0, 0, 0, 1);
properties->model = vao();
properties->verts = data_buffer((GLvoid *)verts, sizeof(verts));
properties->indices = index_buffer((GLvoid *)inds, sizeof(inds));
vao_add_indices(properties->model, properties->indices);
vao_add_vdata(properties->model, properties->verts, 2, GL_FALSE);
ft_putnbr(glGetError());
ft_putendl(" -0");
properties->shaders[0] = load_vertex();
properties->shaders[1] = load_fragment(properties->map);
properties->program = shader_program(properties->shaders, 2);
ft_putnbr(glGetError());
ft_putendl(" -1");
glUseProgram(properties->program);
glBindVertexArray(properties->model);
glEnableVertexAttribArray(0);
init_uniforms(properties->program);
return (window);
}
/**
* import umdraw mesh list
*/
bool UMSoftwareIO::import_mesh_list(UMMeshList& dst, const umio::UMObjectPtr src, const umstring& absolute_file_path)
{
if (!src) return false;
bool result = false;
umio::UMMesh::IDToMeshMap::iterator it = src->mutable_mesh_map().begin();
for (; it != src->mutable_mesh_map().end(); ++it)
{
umio::UMMesh& ummesh = it->second;
UMMeshPtr mesh(std::make_shared<UMMesh>());
dst.push_back(mesh);
result = true;
sort_by_material(ummesh);
load_material(absolute_file_path, mesh, ummesh);
load_vertex_index(mesh, ummesh);
load_vertex(mesh, ummesh);
load_normal(mesh, ummesh);
load_uv(mesh, ummesh);
load_skin(mesh, ummesh);
mesh->update_box();
}
return result;
}
int main(int argc, char *argv[])
{
if (argc > 1){
if (strcmp(argv[1], "-debug") == 0 )
mode = MODE_DEBUG;
else if ( strcmp(argv[1], "-oculus") == 0 )
mode = MODE_OCULUS;
else if ( strcmp(argv[1], "-oculus-debug") == 0 )
mode = MODE_OCULUS_DEBUG;
else return 100;
}else
mode = MODE_DEBUG;
int err;
// Init OVR library, hardware and sensors.
err = init_ovr();
if ( err != 0 )
exit( 10 + err );
//Init windows and OpenGL context
err = init_SDL_GL();
if ( err != 0 )
exit( 0 + err );
// Load and Init shader and shaders Program
err = load_init_shaders();
if ( err != 0 )
exit( 20 + err );
// Load the Vertices, vertex arrays, etc... And bind them, along with the shaders.
err = load_vertex();
if ( err != 0 )
exit( 30 + err );
// Loads the texture from files and bien them as uniform in the frag shader
err = load_textures();
if ( err != 0 )
exit( 40 + err );
if (mode != MODE_DEBUG){
// Inits the frame buffer, usefull for rendering the scene in a texture to send it to Oculus
err = init_framebuffers();
if ( err != 0 )
exit( 50 + err );
err = init_render_ovr();
if ( err != 0 )
exit( 60 + err );
}
std::cout << "Recommended w " << recommendedTex0Size.w << std::endl << "Recommended h " << recommendedTex0Size.h << std::endl;
// Tansformations
//---------------------------------------------
// ---- Transfo
glm::mat4 trans;
GLuint uniTrans = glGetUniformLocation(shaderProgram, "trans");
// ---- View
glm::mat4 view;
// ---- Projection
glm::mat4 proj;
// Render in Texture, and display
//-------------------------------------------------
if (mode == MODE_OCULUS_DEBUG ){
load_init_passthrough_shaders();
GLuint passthroughOB;
glGenBuffers(1, &passthroughOB);
glBindBuffer(GL_ARRAY_BUFFER, passthroughOB);
glBufferData(GL_ARRAY_BUFFER, sizeof(passthroughScreen), passthroughScreen, GL_STATIC_DRAW);
// Binding the fragment Shader output to the current buffer
glBindFragDataLocation(passthroughShadersProgram, 0, "passthroughColor");
errorCode = glGetError();
// Link and Use Program
glLinkProgram(passthroughShadersProgram);
glUseProgram(passthroughShadersProgram);
// Store the attributes for the shaders
glGenVertexArrays(1, &passthroughVAO);
glBindVertexArray(passthroughVAO);
// Attributes Locations for Shaders and Enable
GLint posAttrib = glGetAttribLocation(passthroughShadersProgram, "position");
glVertexAttribPointer(posAttrib, 0, GL_FLOAT, GL_FALSE, sizeof(float) * 4, (void*) 2 );
glEnableVertexAttribArray(posAttrib);
GLint colorAttrib = glGetAttribLocation(passthroughShadersProgram, "texCoords");
glVertexAttribPointer(colorAttrib, 2, GL_FLOAT, GL_FALSE, sizeof(float) * 4, (void*)(sizeof(float) * 2) );
glEnableVertexAttribArray(colorAttrib);
glUseProgram(passthroughShadersProgram);
glUniform1i(glGetUniformLocation(passthroughShadersProgram, "renderedTex"), 0);
}
// Event Loop
//--------------------------------------------------
SDL_Event windowEvent;
while (true)
{
if (SDL_PollEvent(&windowEvent))
{
// Quit events
if (windowEvent.type == SDL_QUIT) break;
else if (windowEvent.type == SDL_KEYUP && windowEvent.key.keysym.sym == SDLK_ESCAPE) break;
}
// Enabling ressources to draw the cube
// Before entering the rendering loop
glBindBuffer(GL_ARRAY_BUFFER, vertexBuffer);
glActiveTexture(GL_TEXTURE0);
glBindTexture(GL_TEXTURE_2D, textures[0]);
glActiveTexture(GL_TEXTURE1);
glBindTexture(GL_TEXTURE_2D, textures[1]);
// ---- View
view = glm::lookAt(
glm::vec3(5.0f, 5.0f, 5.0f),
glm::vec3(0.0f, 0.0f, 0.0f),
glm::vec3(0.0f, 0.0f, 1.0f)
);
GLint uniView = glGetUniformLocation(shaderProgram, "view");
glUniformMatrix4fv(uniView, 1, GL_FALSE, glm::value_ptr(view));
// ---- Projection
if ( mode == MODE_DEBUG ){
proj = glm::perspective(45.0f, 1280.0f / 720.0f, 1.0f, 10.0f);
}else{
proj = glm::perspective(45.0f, 640.0f / 720.0f, 1.0f, 10.0f);
}
GLint uniProj = glGetUniformLocation(shaderProgram, "proj");
glUniformMatrix4fv(uniProj, 1, GL_FALSE, glm::value_ptr(proj));
//Turn around Z
trans = glm::rotate(
trans,
0.7f,
glm::vec3(0.0f, 0.0f, 1.0f)
);
glUniformMatrix4fv(uniTrans, 1, GL_FALSE, glm::value_ptr(trans));
if ( mode == MODE_OCULUS || mode == MODE_OCULUS_DEBUG ){
hdmFrameTiming = ovrHmd_BeginFrame(hmd, 0);
glBindFramebuffer(GL_FRAMEBUFFER, frameBuffer);
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT | GL_STENCIL_BUFFER_BIT);
for (int eyeIndex = 0; eyeIndex < ovrEye_Count; eyeIndex++){
ovrEyeType eye = hmd->EyeRenderOrder[eyeIndex];
headPose[eye] = ovrHmd_GetEyePose(hmd, eye);
if (eye == ovrEye_Right){
glScissor(renderTargetSize.w / 2, 0, renderTargetSize.w / 2, renderTargetSize.h);
glViewport(renderTargetSize.w / 2, 0, renderTargetSize.w / 2, renderTargetSize.h);
}else{
glScissor(0, 0, renderTargetSize.w / 2, renderTargetSize.h);
glViewport(0, 0, renderTargetSize.w / 2, renderTargetSize.h);
}
if (eye == ovrEye_Right)
glClearColor(0.0f, 0.3f, 0.0f, 1.0f);
else
glClearColor(0.3f, 0.0f, 0.0f, 1.0f);
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT | GL_STENCIL_BUFFER_BIT);
// Drawing
glDrawArrays(GL_TRIANGLES, 0, 36);
}
if (mode == MODE_OCULUS ){
glScissor(0, 0, renderTargetSize.w, renderTargetSize.h);
glViewport(0, 0, renderTargetSize.w, renderTargetSize.h);
ovrHmd_EndFrame(hmd, headPose, eyeTex);
Sleep(1);
}else if ( mode == MODE_OCULUS_DEBUG ){
glBindBuffer(GL_FRAMEBUFFER, 0);
glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, 0);
glBindBuffer(GL_ARRAY_BUFFER, 0);
glUseProgram(0);
glBindFramebuffer(GL_FRAMEBUFFER, 0);
glBindVertexArray(passthroughVAO);
glDisable(GL_DEPTH_TEST);
glUseProgram(passthroughShadersProgram);
glActiveTexture(GL_TEXTURE0);
glDrawArrays(GL_TRIANGLES, 0, 6);
}
}else if (mode == MODE_DEBUG){
// Clear the screen and the depth buffer (as it is filled with 0 initially,
// nothing will be draw (0 = on top);
glClearColor(0.0f, 0.3f, 0.0f, 1.0f);
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
// Drawing
glDrawArrays(GL_TRIANGLES, 0, 36);
}
if ( mode != MODE_OCULUS )
SDL_GL_SwapWindow(window);
}
// Destoy the HMD and shutdown the library
ovrHmd_Destroy(hmd);
ovr_Shutdown();
// Quite SDL and OpenGL
glDeleteFramebuffers(1, &frameBuffer);
SDL_GL_DeleteContext(context);
SDL_Quit();
return 0;
}
