void gl_setup_program(gl_args *arg, bool gen_buffers, LPCWSTR shader_file, bool transpose_shader)
{
GLuint program = glCreateProgram();
GLuint shader = glCreateShader(GL_COMPUTE_SHADER);
GLint length;
arg->shader_src = gl_prepare_source(arg, shader_file, &length, transpose_shader);
glShaderSource(shader, 1, &arg->shader_src, &length);
glCompileShader(shader);
int rvalue;
glGetShaderiv(shader, GL_COMPILE_STATUS, &rvalue);
if (!rvalue) {
gl_log(shader, "Compiler", "Error in compiling the compute shader\n");
}
glAttachShader(program, shader);
glLinkProgram(program);
glGetProgramiv(program, GL_LINK_STATUS, &rvalue);
if (!rvalue) {
gl_log(shader, "Linker", "Error in linking compute shader program\n");
}
if (gen_buffers) {
GLuint buffers[2];
glGenBuffers(2, buffers);
arg->buf_in = buffers[0];
arg->buf_out = buffers[1];
}
glValidateProgram(program);
arg->program = program;
arg->shader = shader;
}
/*--------------------------------GLFW3 and GLEW------------------------------*/
bool start_gl () {
gl_log ("starting GLFW %s\n", glfwGetVersionString ());
glfwSetErrorCallback (glfw_error_callback);
if (!glfwInit ()) {
fprintf (stderr, "ERROR: could not start GLFW3\n");
return false;
}
// uncomment these lines if on Apple OS X
glfwWindowHint (GLFW_CONTEXT_VERSION_MAJOR, 4);
glfwWindowHint (GLFW_CONTEXT_VERSION_MINOR, 3);
glfwWindowHint (GLFW_OPENGL_FORWARD_COMPAT, GL_TRUE);
glfwWindowHint (GLFW_OPENGL_PROFILE, GLFW_OPENGL_CORE_PROFILE);
// glfwWindowHint (GLFW_SAMPLES, 32);
/*GLFWmonitor* mon = glfwGetPrimaryMonitor ();
const GLFWvidmode* vmode = glfwGetVideoMode (mon);
g_window = glfwCreateWindow (
vmode->width, vmode->height, "Extended GL Init", mon, NULL
);*/
g_window = glfwCreateWindow (
g_gl_width, g_gl_height, "Extended Init.", NULL, NULL
);
if (!g_window) {
fprintf (stderr, "ERROR: could not open window with GLFW3\n");
glfwTerminate();
return false;
}
glfwSetWindowSizeCallback (g_window, glfw_window_size_callback);
glfwMakeContextCurrent (g_window);
// start GLEW extension handler
glewExperimental = GL_TRUE;
glewInit ();
if (GLEW_KHR_debug) {
int param = -1;
printf ("KHR_debug extension found\n");
glDebugMessageCallback ((GLDEBUGPROC)debug_gl_callback, ¶m);
glEnable (GL_DEBUG_OUTPUT_SYNCHRONOUS);
printf ("debug callback engaged\n");
} else {
printf ("KHR_debug extension NOT found\n");
}
// get version info
const GLubyte* renderer = glGetString (GL_RENDERER); // get renderer string
const GLubyte* version = glGetString (GL_VERSION); // version as a string
printf ("Renderer: %s\n", renderer);
printf ("OpenGL version supported %s\n", version);
gl_log ("renderer: %s\nversion: %s\n", renderer, version);
//vysnch
// glfwSwapInterval (1);
return true;
}
//writes the graphics card parameters in the log file
void Logger::log_gl_params()
{
GLenum params[] = {
GL_MAX_COMBINED_TEXTURE_IMAGE_UNITS,
GL_MAX_CUBE_MAP_TEXTURE_SIZE,
GL_MAX_DRAW_BUFFERS,
GL_MAX_FRAGMENT_UNIFORM_COMPONENTS,
GL_MAX_TEXTURE_IMAGE_UNITS,
GL_MAX_TEXTURE_SIZE,
GL_MAX_VARYING_FLOATS,
GL_MAX_VERTEX_ATTRIBS,
GL_MAX_VERTEX_TEXTURE_IMAGE_UNITS,
GL_MAX_VERTEX_UNIFORM_COMPONENTS,
GL_MAX_VIEWPORT_DIMS,
GL_STEREO
};
const char* names[] = {
"GL_MAX_COMBINED_TEXTURE_IMAGE_UNITS",
"GL_MAX_CUBE_MAP_TEXTURE_SIZE",
"GL_MAX_DRAW_BUFFERS",
"GL_MAX_FRAGMENT_UNIFORM_COMPONENTS",
"GL_MAX_TEXTURE_IMAGE_UNITS",
"GL_MAX_TEXTURE_SIZE",
"GL_MAX_VARYING_FLOATS",
"GL_MAX_VERTEX_ATTRIBS",
"GL_MAX_VERTEX_TEXTURE_IMAGE_UNITS",
"GL_MAX_VERTEX_UNIFORM_COMPONENTS",
"GL_MAX_VIEWPORT_DIMS",
"GL_STEREO"
};
gl_log("GL Context Parameters:\n");
//integers - only works if the orderis 0-10 integer return types
for(int i=0; i<10; i++)
{
int v = 0;
glGetIntegerv(params[i], &v);
gl_log("%s %i\n", names[i], v);
}
//others
int v[2];
v[0]=v[1]=0;
glGetIntegerv(params[10], v);
gl_log("%s %i %i\n", names[10], v[0], v[1]);
unsigned char s = 0;
glGetBooleanv(params[11], &s);
gl_log("%s %u\n", names[11], (unsigned int)s);
gl_log("------------------------------------------\n");
}
/*--------------------------------GLFW3 and GLEW-----------------------------*/
bool start_gl() {
const GLubyte *renderer;
const GLubyte *version;
gl_log( "starting GLFW %s", glfwGetVersionString() );
glfwSetErrorCallback( glfw_error_callback );
if ( !glfwInit() ) {
fprintf( stderr, "ERROR: could not start GLFW3\n" );
return false;
}
/* We must specify 3.2 core if on Apple OS X -- other O/S can specify
anything here. I defined 'APPLE' in the makefile for OS X */
#ifdef APPLE
glfwWindowHint( GLFW_CONTEXT_VERSION_MAJOR, 3 );
glfwWindowHint( GLFW_CONTEXT_VERSION_MINOR, 2 );
glfwWindowHint( GLFW_OPENGL_FORWARD_COMPAT, GL_TRUE );
glfwWindowHint( GLFW_OPENGL_PROFILE, GLFW_OPENGL_CORE_PROFILE );
#endif
/*GLFWmonitor* mon = glfwGetPrimaryMonitor ();
const GLFWvidmode* vmode = glfwGetVideoMode (mon);
g_window = glfwCreateWindow (
vmode->width, vmode->height, "Extended GL Init", mon, NULL
);*/
g_window = glfwCreateWindow( g_gl_width, g_gl_height, "Shaders", NULL, NULL );
if ( !g_window ) {
fprintf( stderr, "ERROR: could not open window with GLFW3\n" );
glfwTerminate();
return false;
}
glfwSetFramebufferSizeCallback( g_window, glfw_framebuffer_size_callback );
glfwMakeContextCurrent( g_window );
glfwWindowHint( GLFW_SAMPLES, 4 );
/* start GLEW extension handler */
glewExperimental = GL_TRUE;
glewInit();
/* get version info */
renderer = glGetString( GL_RENDERER ); /* get renderer string */
version = glGetString( GL_VERSION ); /* version as a string */
printf( "Renderer: %s\n", renderer );
printf( "OpenGL version supported %s\n", version );
gl_log( "renderer: %s\nversion: %s\n", renderer, version );
previous_seconds = glfwGetTime();
return true;
}
Model* create_model(char* filename, GLint shader_program) {
struct aiScene* scene = aiImportFile(filename, aiProcess_Triangulate);
if (!scene) {
gl_log(ERROR, "Cannot open scene file: %s", filename);
return 0;
}
gl_log(INFO, "Loading model: %s", filename);
gl_log(INFO, "%d animations", scene->mNumAnimations);
gl_log(INFO, "%d cameras", scene->mNumCameras);
gl_log(INFO, "%d lights", scene->mNumLights);
gl_log(INFO, "%d materials", scene->mNumMaterials);
gl_log(INFO, "%d meshes", scene->mNumMeshes);
gl_log(INFO, "%d textures", scene->mNumTextures);
GLint light_position = glGetUniformLocation(shader_program, "light.position");
GLint light_ambient = glGetUniformLocation(shader_program, "light.ambient_color");
GLint light_diffuse = glGetUniformLocation(shader_program, "light.diffuse_color");
GLint light_specular = glGetUniformLocation(shader_program, "light.specular_color");
glUniform3f(light_position, 0.0, 100.0, 10.0);
glUniform3f(light_ambient, 1.0f, 1.0f, 1.0f);
glUniform3f(light_diffuse, 1.0f, 1.0f, 1.0f);
glUniform3f(light_specular, 1.0f, 1.0f, 1.0f);
Model* model = malloc(sizeof(Model));
model->num_meshes = scene->mNumMeshes;
model->meshes = malloc(sizeof(Mesh*) * scene->mNumMeshes);
process_node(model, scene->mRootNode, scene);
model->shader_program = shader_program;
return model;
}
/*--------------------------------GLFW3 and GLEW------------------------------*/
bool start_gl () {
gl_log ("starting GLFW %s\n", glfwGetVersionString ());
glfwSetErrorCallback (glfw_error_callback);
if (!glfwInit ()) {
fprintf (stderr, "ERROR: could not start GLFW3\n");
return false;
}
// uncomment these lines if on Apple OS X
/*glfwWindowHint (GLFW_CONTEXT_VERSION_MAJOR, 3);
glfwWindowHint (GLFW_CONTEXT_VERSION_MINOR, 2);
glfwWindowHint (GLFW_OPENGL_FORWARD_COMPAT, GL_TRUE);
glfwWindowHint (GLFW_OPENGL_PROFILE, GLFW_OPENGL_CORE_PROFILE);
*/
/*GLFWmonitor* mon = glfwGetPrimaryMonitor ();
const GLFWvidmode* vmode = glfwGetVideoMode (mon);
g_window = glfwCreateWindow (
vmode->width, vmode->height, "Extended GL Init", mon, NULL
);*/
g_window = glfwCreateWindow (
g_gl_width, g_gl_height, "Extended Init.", NULL, NULL
);
if (!g_window) {
fprintf (stderr, "ERROR: could not open window with GLFW3\n");
glfwTerminate();
return false;
}
glfwSetWindowSizeCallback (g_window, glfw_window_size_callback);
glfwMakeContextCurrent (g_window);
glfwWindowHint (GLFW_SAMPLES, 4);
// start GLEW extension handler
glewExperimental = GL_TRUE;
glewInit ();
// get version info
const GLubyte* renderer = glGetString (GL_RENDERER); // get renderer string
const GLubyte* version = glGetString (GL_VERSION); // version as a string
printf ("Renderer: %s\n", renderer);
printf ("OpenGL version supported %s\n", version);
gl_log ("renderer: %s\nversion: %s\n", renderer, version);
return true;
}
bool create_programme (GLuint vert, GLuint frag, GLuint* programme) {
*programme = glCreateProgram ();
gl_log (
"created programme %u. attaching shaders %u and %u...\n",
*programme,
vert,
frag
);
glAttachShader (*programme, vert);
glAttachShader (*programme, frag);
// link the shader programme. if binding input attributes do that before link
glLinkProgram (*programme);
GLint params = -1;
glGetProgramiv (*programme, GL_LINK_STATUS, ¶ms);
if (GL_TRUE != params) {
gl_log_err (
"ERROR: could not link shader programme GL index %u\n",
*programme
);
print_programme_info_log (*programme);
return false;
}
assert (is_programme_valid (*programme));
// delete shaders here to free memory
glDeleteShader (vert);
glDeleteShader (frag);
return true;
}
/*--------------------------------GLFW3 and GLEW------------------------------*/
bool start_gl () {
gl_log ("starting GLFW %s\n", glfwGetVersionString ());
glfwSetErrorCallback (glfw_error_callback);
if (!glfwInit ()) {
fprintf (stderr, "ERROR: could not start GLFW3\n");
return false;
}
/* We must specify 3.2 core if on Apple OS X -- other O/S can specify
anything here. I defined 'APPLE' in the makefile for OS X */
glfwWindowHint (GLFW_CONTEXT_VERSION_MAJOR, 2);
glfwWindowHint (GLFW_CONTEXT_VERSION_MINOR, 1);
/*GLFWmonitor* mon = glfwGetPrimaryMonitor ();
const GLFWvidmode* vmode = glfwGetVideoMode (mon);
g_window = glfwCreateWindow (
vmode->width, vmode->height, "Extended GL Init", mon, NULL
);*/
g_window = glfwCreateWindow (g_gl_width, g_gl_height, "Extended Init.",
NULL, NULL);
if (!g_window) {
fprintf (stderr, "ERROR: could not open window with GLFW3\n");
glfwTerminate();
return false;
}
glfwSetWindowSizeCallback (g_window, glfw_window_size_callback);
glfwMakeContextCurrent (g_window);
glfwWindowHint (GLFW_SAMPLES, 16);
// start GLEW extension handler
glewExperimental = GL_TRUE;
glewInit ();
// get version info
const GLubyte* renderer = glGetString (GL_RENDERER); // get renderer string
const GLubyte* version = glGetString (GL_VERSION); // version as a string
printf ("renderer: %s\n", renderer);
printf ("OpenGL version supported %s\n", version);
gl_log ("renderer: %s\nversion: %s\n", renderer, version);
return true;
}
void print_shader_info_log (GLuint shader_index) {
int max_length = 2048;
int actual_length = 0;
char log[2048];
glGetShaderInfoLog (shader_index, max_length, &actual_length, log);
printf ("shader info log for GL index %i:\n%s\n", shader_index, log);
gl_log ("shader info log for GL index %i:\n%s\n", shader_index, log);
}
void print_programme_info_log (GLuint sp) {
int max_length = 2048;
int actual_length = 0;
char log[2048];
glGetProgramInfoLog (sp, max_length, &actual_length, log);
printf ("program info log for GL index %u:\n%s", sp, log);
gl_log ("program info log for GL index %u:\n%s", sp, log);
}
bool create_shader (const char* file_name, GLuint* shader, GLenum type) {
gl_log ("creating shader from %s...\n", file_name);
char shader_string[MAX_SHADER_LENGTH];
assert (parse_file_into_str (file_name, shader_string, MAX_SHADER_LENGTH));
*shader = glCreateShader (type);
const GLchar* p = (const GLchar*)shader_string;
glShaderSource (*shader, 1, &p, NULL);
glCompileShader (*shader);
// check for compile errors
int params = -1;
glGetShaderiv (*shader, GL_COMPILE_STATUS, ¶ms);
if (GL_TRUE != params) {
gl_log_err ("ERROR: GL shader index %i did not compile\n", *shader);
print_shader_info_log (*shader);
return false; // or exit or something
}
gl_log ("shader compiled. index %i\n", *shader);
return true;
}
bool is_programme_valid (GLuint sp) {
glValidateProgram (sp);
GLint params = -1;
glGetProgramiv (sp, GL_VALIDATE_STATUS, ¶ms);
if (GL_TRUE != params) {
gl_log_err ("program %i GL_VALIDATE_STATUS = GL_FALSE\n", sp);
print_programme_info_log (sp);
return false;
}
gl_log ("program %i GL_VALIDATE_STATUS = GL_TRUE\n", sp);
return true;
}
bool Skybox::loadCubeMapSide(
GLuint texture, GLenum side_target, const char* file_name
)
{
glBindTexture(GL_TEXTURE_CUBE_MAP, texture);
int x, y, n;
int force_channels = 4;
unsigned char* image_data = stbi_load(
file_name, &x, &y, &n, force_channels);
if (!image_data)
{
gl_log("ERROR: could not load %s\n", file_name);
return false;
}
// non-power-of-2 dimensions check
if ((x & (x - 1)) != 0 || (y & (y - 1)) != 0)
{
gl_log("WARNING: image %s is not power-of-2 dimensions\n", file_name);
}
// copy image data into 'target' side of cube map
glTexImage2D(
side_target,
0,
GL_RGBA,
x,
y,
0,
GL_RGBA,
GL_UNSIGNED_BYTE,
image_data
);
free(image_data);
gl_log("Skybox: loaded %s \n", file_name);
std::cout << "SKYBOY LOADCUBEMAPSIDE " << side_target << "\n";
return true;
}
lval* lval_copy(lval *v) {
lval* x;
gl_log(L_DEBUG, "Copying lval of type: %s", ltype_name(v->type));
switch (v->type) {
case LVAL_FUN:
x = new_lval(v->type, 0);
if (v->builtin) {
x->builtin = v->builtin;
} else {
x->builtin = NULL;
x->env = lenv_copy(v->env);
x->formals = lval_copy(v->formals);
x->body = lval_copy(v->body);
}
break;
case LVAL_NUM:
x = new_lval(v->type, 0);
x->num = v->num;
break;
case LVAL_ERR:
x = new_lval(v->type, strlen(v->err) + 1);
x->err = malloc(strlen(v->err) + 1);
strcpy(x->err, v->err);
break;
case LVAL_SYM:
x = new_lval(v->type, strlen(v->sym) + 1);
x->sym = malloc(strlen(v->sym) + 1);
strcpy(x->sym, v->sym);
break;
case LVAL_STR:
x = new_lval(v->type, strlen(v->str) + 1);
x->str = malloc(strlen(v->str) + 1);
strcpy(x->str, v->str);
break;
case LVAL_SEXPR:
case LVAL_QEXPR:
x = new_lval(v->type, sizeof(lval*) * v->count);
x->count = v->count;
x->cell = malloc(sizeof(lval*) * x->count);
for (int i = 0; i < x->count; i++) {
x->cell[i] = lval_copy(v->cell[i]);
}
break;
}
x->type = v->type;
return x;
}
int main()
{
// open an OS window using GLFW
if(!glfwInit())
{
fprintf (stderr, "ERROR: could not start GLFW3\n");
return 1;
}
char message[256];
sprintf (message, "starting GLFW %s", glfwGetVersionString());
assert (gl_log (message, __FILE__, __LINE__));
glfwSetErrorCallback (glfw_error_callback);
// Anti-Aliasing
glfwWindowHint (GLFW_SAMPLES, 4);
// get the primary monitor
GLFWmonitor* mon = glfwGetPrimaryMonitor();
// this lets us use the video mode for the monitor we pass
const GLFWvidmode* vmode = glfwGetVideoMode(mon);
//GLFWwindow* window2 = glfwCreateWindow(vmode->width, vmode->height, "Extended GL Init",mon/* mon*/, NULL);
// if (!window2)
// {
// fprintf (stderr, "ERROR: could not open window with GLFW3\n");
// glfwTerminate();
// return 1;
// }
//glfwSetWindowSize (window2, vmode->width, vmode->height);
//glfwMakeContextCurrent (window2);
GLFWwindow * window = glfwCreateWindow(640,480,"Hello Triangle", NULL, NULL);
if (!window)
{
fprintf (stderr, "ERROR: could not open window with GLFW3\n");
glfwTerminate();
return 1;
}
glfwMakeContextCurrent(window); // set as active window
// start GLEW extension handler
glewExperimental = GL_TRUE;
glewInit();
// get version info
const GLubyte* renderer = glGetString (GL_RENDERER); // get renderer string
const GLubyte* version = glGetString (GL_VERSION); // version as a string
printf ("Renderer: %s\n", renderer);
printf ("OpenGL version supported %s\n", version);
// tell GL to only draw onto a pixel if the shape is closer to the viewer
glEnable (GL_DEPTH_TEST); // enable depth-testing
glDepthFunc (GL_LESS);
// depth-testing interprets a smaller value as "closer"
//const char* vertex_shader =
//"#version 330\n"
//"in vec3 vp;"
//"void main () {"
//" gl_Position = vec4 (vp, 1.0);"
//"}";
//const char* fragment_shader =
//"#version 330\n"
//"out vec4 frag_colour;"
//"void main () {"
//" float lerpValue = gl_FragCoord.y / 480.0f;"
//" frag_colour = mix(vec4 (1.0f, 1.0f, 1.0f, 1.0f), vec4 (0.5, 0.0, 0.5, 1.0), lerpValue);"
//"}";
//// Create a shader
//GLuint vs = glCreateShader (GL_VERTEX_SHADER);
//// put actual char* into the shader
//glShaderSource (vs, 1, &vertex_shader, NULL);
//// compile the shader
//glCompileShader(vs);
//printShaderInfoLog(vs);
//GLuint fs = glCreateShader (GL_FRAGMENT_SHADER);
//glShaderSource (fs, 1, &fragment_shader, NULL);
//glCompileShader (fs);
//printShaderInfoLog(fs);
//// create the container that holds your shaders
//GLuint shaderProgram = glCreateProgram ();
//// attach the shaders you compiled
//glAttachShader (shaderProgram, fs);
//glAttachShader (shaderProgram, vs);
//// this links the shaders together, its kinda like a compile
//glLinkProgram (shaderProgram);
//printProgramInfoLog(shaderProgram);
//std::vector<Quad> v_quads;
//Quad * tester = new Quad();
Sprite * richard = new Sprite("simmons.png",384,324,Vector4(1,1,1,1),window);
//v_quads.push_back(initQuad);
while (!glfwWindowShouldClose (window))
{
_update_fps_counter (window);
// wipe the drawing surface clear
glClear (GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
glViewport (0,0, g_gl_width, g_gl_height);
glClearColor(0,1,1,1);
//glUseProgram (shaderProgram);
//// if key is pressed
//if (glfwGetKey(window, GLFW_KEY_SPACE) == GLFW_PRESS)
//{
//// make new quad object
// Quad newQuad;
// v_quads.push_back(newQuad);
//}
/*for (int i=0;i<7;i++)
{
Quad newQuad;
v_quads.push_back(newQuad);
}*/
// for each quad in vector, bind its VAO and draw
/*for(auto quad= v_quads.begin(); quad != v_quads.end(); ++quad)
{
glBindVertexArray (quad->m_VAO);
glDrawArrays (GL_TRIANGLE_STRIP, 0, 4);
}*/
richard->Draw();
// glBindVertexArray (0);
// put the stuff we've been drawing onto the display
glfwSwapBuffers (window);
}
// close GL context and any other GLFW resources
glfwTerminate();
//char* pause = "not";
//std::cin>> pause;
return 0;
}
static Mesh* process_mesh(struct aiMesh* mesh, struct aiScene* scene) {
Vertex **vertices = malloc(sizeof(Vertex *) * mesh->mNumVertices);
for (int i = 0; i < mesh->mNumVertices; i++) {
vertices[i] = malloc(sizeof(Vertex));
}
// Process vertices
if (mesh->mVertices && mesh->mNumVertices > 0) {
for (int i = 0; i < mesh->mNumVertices; i++) {
struct aiVector3D position = mesh->mVertices[i];
vertices[i]->position = create_vec(position.x, position.y, position.z, 1.0);
}
} else {
gl_log(INFO, "A mesh was processed with no vertices.");
}
// Process normals
if (mesh->mNormals) {
for (int i = 0; i < mesh->mNumVertices; i++) {
struct aiVector3D normal = mesh->mNormals[i];
vertices[i]->normal = create_vec(normal.x, normal.y, normal.z, 1.0);
}
} else {
gl_log(INFO, "A mesh was processed with no normals.");
}
// Process texture coords
if (mesh->mTextureCoords[0]) {
for (int i = 0; i < mesh->mNumVertices; i++) {
struct aiVector3D texture = mesh->mTextureCoords[0][i];
vertices[i]->texture_coords = create_vec(texture.x, texture.y, texture.z, 1.0);
}
} else {
for (int i = 0; i < mesh->mNumVertices; i++) {
vertices[i]->texture_coords = 0;
}
gl_log(INFO, "A mesh was processed with no texture coordinates.");
}
// Process material
Texture* mesh_texture = malloc(sizeof(Texture));
Material* mesh_material = malloc(sizeof(Material));
if (mesh->mMaterialIndex >= 0) {
struct aiString path;
struct aiMaterial *material = scene->mMaterials[mesh->mMaterialIndex];
aiGetMaterialTexture(material, aiTextureType_DIFFUSE, 0, &path, 0, 0, 0, 0, 0, 0);
mesh_texture->id = create_texture(path.data);
struct aiColor4D color;
aiGetMaterialColor(material, AI_MATKEY_COLOR_DIFFUSE, &color);
mesh_material->diffuse_color = create_vec(color.r, color.g, color.b, color.a);
aiGetMaterialColor(material, AI_MATKEY_COLOR_AMBIENT, &color);
mesh_material->ambient_color = create_vec(color.r, color.g, color.b, color.a);
aiGetMaterialColor(material, AI_MATKEY_COLOR_SPECULAR, &color);
mesh_material->specular_color = create_vec(color.r, color.g, color.b, color.a);
} else {
gl_log(INFO, "A mesh was processed with no material.");
}
return create_mesh(vertices, mesh->mNumVertices, mesh_texture, mesh_material);
}
void glfw_error_callback(int error, const char * description)
{
fputs(description, stderr);
gl_log(description, __FILE__, __LINE__);
//update matrices below
}
int main () {
GLFWwindow* window;
const GLubyte* renderer;
const GLubyte* version;
GLfloat points[] = {
0.0f, 0.5f, 0.0f,
0.5f, -0.5f, 0.0f,
-0.5f, -0.5f, 0.0f
};
GLuint vbo;
GLuint vao;
const char* vertex_shader =
"#version 400\n"
"in vec3 vp;"
"void main () {"
" gl_Position = vec4 (vp, 1.0);"
"}";
const char* fragment_shader =
"#version 400\n"
"out vec4 frag_colour;"
"void main () {"
" frag_colour = vec4 (0.5, 0.0, 0.5, 1.0);"
"}";
GLuint shader_programme, vs, fs;
assert (restart_gl_log ());
// start GL context and O/S window using the GLFW helper library
gl_log ("starting GLFW\n%s\n", glfwGetVersionString ());
// register the error call-back function that we wrote, above
glfwSetErrorCallback (glfw_error_callback);
if (!glfwInit ()) {
fprintf (stderr, "ERROR: could not start GLFW3\n");
return 1;
}
// uncomment these lines if on Apple OS X
/*glfwWindowHint (GLFW_CONTEXT_VERSION_MAJOR, 3);
glfwWindowHint (GLFW_CONTEXT_VERSION_MINOR, 2);
glfwWindowHint (GLFW_OPENGL_FORWARD_COMPAT, GL_TRUE);
glfwWindowHint (GLFW_OPENGL_PROFILE, GLFW_OPENGL_CORE_PROFILE);
*/
/* we can run a full-screen window here */
/*GLFWmonitor* mon = glfwGetPrimaryMonitor ();
const GLFWvidmode* vmode = glfwGetVideoMode (mon);
GLFWwindow* window = glfwCreateWindow (
vmode->width, vmode->height, "Extended GL Init", mon, NULL
);*/
window = glfwCreateWindow (
g_gl_width, g_gl_height, "Extended Init.", NULL, NULL
);
if (!window) {
fprintf (stderr, "ERROR: could not open window with GLFW3\n");
glfwTerminate();
return 1;
}
glfwSetWindowSizeCallback (window, glfw_window_size_callback);
glfwMakeContextCurrent (window);
glfwWindowHint (GLFW_SAMPLES, 4);
// start GLEW extension handler
glewExperimental = GL_TRUE;
glewInit ();
// get version info
renderer = glGetString (GL_RENDERER); // get renderer string
version = glGetString (GL_VERSION); // version as a string
printf ("Renderer: %s\n", renderer);
printf ("OpenGL version supported %s\n", version);
gl_log ("renderer: %s\nversion: %s\n", renderer, version);
log_gl_params ();
// tell GL to only draw onto a pixel if the shape is closer to the viewer
glEnable (GL_DEPTH_TEST); // enable depth-testing
glDepthFunc (GL_LESS); // depth-testing interprets a smaller value as "closer"
glGenBuffers (1, &vbo);
glBindBuffer (GL_ARRAY_BUFFER, vbo);
glBufferData (GL_ARRAY_BUFFER, 9 * sizeof (GLfloat), points, GL_STATIC_DRAW);
glGenVertexArrays (1, &vao);
glBindVertexArray (vao);
glEnableVertexAttribArray (0);
glBindBuffer (GL_ARRAY_BUFFER, vbo);
glVertexAttribPointer (0, 3, GL_FLOAT, GL_FALSE, 0, NULL);
vs = glCreateShader (GL_VERTEX_SHADER);
glShaderSource (vs, 1, &vertex_shader, NULL);
glCompileShader (vs);
fs = glCreateShader (GL_FRAGMENT_SHADER);
glShaderSource (fs, 1, &fragment_shader, NULL);
glCompileShader (fs);
shader_programme = glCreateProgram ();
glAttachShader (shader_programme, fs);
glAttachShader (shader_programme, vs);
glLinkProgram (shader_programme);
while (!glfwWindowShouldClose (window)) {
_update_fps_counter (window);
// wipe the drawing surface clear
glClear (GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
glViewport (0, 0, g_gl_width, g_gl_height);
glUseProgram (shader_programme);
glBindVertexArray (vao);
// draw points 0-3 from the currently bound VAO with current in-use shader
glDrawArrays (GL_TRIANGLES, 0, 3);
// update other events like input handling
glfwPollEvents ();
if (GLFW_PRESS == glfwGetKey (window, GLFW_KEY_ESCAPE)) {
glfwSetWindowShouldClose (window, 1);
}
// put the stuff we've been drawing onto the display
glfwSwapBuffers (window);
}
// close GL context and any other GLFW resources
glfwTerminate();
return 0;
}
int main()
{
//setup to log some GLFW stuff
char message[256];
sprintf (message, "starting GLFW %s", glfwGetVersionString ());
assert (gl_log (message, __FILE__, __LINE__));
glfwSetErrorCallback (glfw_error_callback);
//open an OS window using GLFW
if(!glfwInit())
{
fprintf (stderr,"ERROR: could not start GLFW3\n");
return 1;
}
// uncomment these lines if on Apple OS X
/* glfwWindowHint (GLFW_CONTEXT_VERSION_MAJOR, 3);
glfwWindowHint (GLFW_CONTEXT_VERSION_MINOR, 2);
glfwWindowHint (GLFW_OPENGL_FORWARD_COMPAT, GL_TRUE);
glfwWindowHint (GLFW_OPENGL_PROFILE, GLFW_OPENGL_CORE_PROFILE);
*/
//Anti-Aliasing
glfwWindowHint (GLFW_SAMPLES, 4);
//get the primary monitor
GLFWmonitor* mon = glfwGetPrimaryMonitor ();
//this lets us the the video mode for the monitor we pass
const GLFWvidmode* vmode = glfwGetVideoMode (mon);
GLFWwindow* window = glfwCreateWindow (
vmode->width, vmode->height, "Extended GL Init",NULL/* mon*/, NULL
);
glfwSetWindowSize(window, g_gl_width, g_gl_height);
if (!window) {
fprintf (stderr, "ERROR: could not open window with GLFW3\n");
glfwTerminate();
return 1;
}
//not sure if this works
//log_gl_params ();
glfwMakeContextCurrent(window);
//start GLEW extension handler
glewExperimental = GL_TRUE;
glewInit();
// get version info
const GLubyte* renderer = glGetString (GL_RENDERER); // get renderer string
const GLubyte* version = glGetString (GL_VERSION); // version as a string
printf ("Renderer: %s\n", renderer);
printf ("OpenGL version supported %s\n", version);
// tell GL to only draw onto a pixel if the shape is closer to the viewer
glEnable (GL_DEPTH_TEST); // enable depth-testing
glDepthFunc (GL_LESS); // depth-testing interprets a smaller value as "closer"
float speed = 1.0f; // move at 1 unit per second
float last_position = 0.0f;
//Quad * tester = new Quad();
Sprite * richard = new Sprite("./resources/simmons.png", 384, 324, Vector4(1,1,1,1), window);
//int matrix_location = glGetUniformLocation (shaderProgram, "matrix");
//glUniform1i(glGetUniformLocation(shaderProgram, "Texture"), 0);
Ortho = new Matrix4();
Orthographic(0, g_gl_width, g_gl_height, 0, 0, -1, Ortho);
while (!glfwWindowShouldClose (window)) {
/* add a timer for doing animation
static double previous_seconds = glfwGetTime ();
double current_seconds = glfwGetTime ();
double elapsed_seconds = current_seconds - previous_seconds;
previous_seconds = current_seconds;
// reverse direction when going to far left or right
if (fabs(last_position) > 1.0f) {
speed = -speed;
}
*/
glEnable (GL_CULL_FACE); // cull face
glCullFace (GL_BACK); // cull back face
glFrontFace (GL_CW); // GL_CCW for counter clock-wise
// wipe the drawing surface clear
glClear (GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
//resize window
glViewport (0, 0, g_gl_width, g_gl_height);
// update the matrix
// matrix[12] = elapsed_seconds * speed + last_position;
// last_position = matrix[12];
//set the shader for this VAO
// glUseProgram (shaderProgram);
//Here is where we attach the marix
// glUniformMatrix4fv (matrix_location, 1, GL_FALSE, matrix);
//bind the VAO to be drawn
// glBindVertexArray (VAO);
// draw points 0-3 from the currently bound VAO with current in-use shader
// glDrawArrays (GL_TRIANGLES, 0, 3);
richard->Input();
richard->Draw();
// update other events like input handling
glfwPollEvents ();
// put the stuff we've been drawing onto the display
glfwSwapBuffers (window);
//When do i exit?
if (GLFW_PRESS == glfwGetKey (window, GLFW_KEY_ESCAPE)) {
glfwSetWindowShouldClose (window, 1);
}
}
// close GL context and any other GLFW resources
glfwTerminate();
return 0;
}
int notmain2()
{
char message[256];
sprintf (message, "starting GLFW %s", glfwGetVersionString ());
assert (gl_log (message, __FILE__, __LINE__));
glfwSetErrorCallback (glfw_error_callback);
//open an OS window using GLFW
if(!glfwInit())
{
fprintf (stderr,"ERROR: could not start GLFW3\n");
return 1;
}
// uncomment these lines if on Apple OS X
/*glfwWindowHint (GLFW_CONTEXT_VERSION_MAJOR, 3);
glfwWindowHint (GLFW_CONTEXT_VERSION_MINOR, 2);
glfwWindowHint (GLFW_OPENGL_FORWARD_COMPAT, GL_TRUE);
glfwWindowHint (GLFW_OPENGL_PROFILE, GLFW_OPENGL_CORE_PROFILE);*/
glfwWindowHint (GLFW_SAMPLES, 4);
GLFWwindow * window = glfwCreateWindow(640,480,"Hello Triangle",NULL,NULL);
if (!window) {
fprintf (stderr, "ERROR: could not open window with GLFW3\n");
glfwTerminate();
return 1;
}
glfwMakeContextCurrent(window);
//start GLEW extension handler
glewExperimental = GL_TRUE;
glewInit();
// get version info
const GLubyte* renderer = glGetString (GL_RENDERER); // get renderer string
const GLubyte* version = glGetString (GL_VERSION); // version as a string
printf ("Renderer: %s\n", renderer);
printf ("OpenGL version supported %s\n", version);
// tell GL to only draw onto a pixel if the shape is closer to the viewer
glEnable (GL_DEPTH_TEST); // enable depth-testing
glDepthFunc (GL_LESS); // depth-testing interprets a smaller value as "closer"
/* OTHER STUFF GOES HERE NEXT */
float points[] =
{
0.0f,0.5f,0.0f,
0.5f,-0.5f,0.0f,
-0.5f,-0.5f,0.0f,
};
GLuint VBO = 0;
glGenBuffers (1, &VBO);
glBindBuffer (GL_ARRAY_BUFFER, VBO);
glBufferData (GL_ARRAY_BUFFER, 9 * sizeof (float), points, GL_STATIC_DRAW);
GLuint VAO = 0;
glGenVertexArrays (1, &VAO);
glBindVertexArray (VAO);
glEnableVertexAttribArray (0);
glBindBuffer (GL_ARRAY_BUFFER, VBO);
glVertexAttribPointer (0, 3, GL_FLOAT, GL_FALSE, 0, (GLubyte*)NULL);
const char* vertex_shader =
"#version 400\n"
"in vec3 vp;"
"void main () {"
" gl_Position = vec4 (vp, 1.0);"
"}";
const char* fragment_shader =
"#version 400\n"
"out vec4 frag_colour;"
"void main () {"
" frag_colour = vec4 (0.5, 0.0, 0.5, 1.0);"
"}";
//Create a shader
GLuint vs = glCreateShader (GL_VERTEX_SHADER);
//put the actual char* into the shader
glShaderSource (vs, 1, &vertex_shader, NULL);
//Compile the shader
glCompileShader (vs);
GLuint fs = glCreateShader (GL_FRAGMENT_SHADER);
glShaderSource (fs, 1, &fragment_shader, NULL);
glCompileShader (fs);
//Create the container that holds your shaders
GLuint shaderProgram = glCreateProgram ();
//attach the shaders you compiled
glAttachShader (shaderProgram, fs);
glAttachShader (shaderProgram, vs);
//this is links the shaders together, its kinda like a compile
glLinkProgram (shaderProgram);
while (!glfwWindowShouldClose (window)) {
// wipe the drawing surface clear
glClear (GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
glUseProgram (shaderProgram);
glBindVertexArray (VAO);
// draw points 0-3 from the currently bound VAO with current in-use shader
glDrawArrays (GL_TRIANGLES, 0, 3);
// update other events like input handling
glfwPollEvents ();
// put the stuff we've been drawing onto the display
glfwSwapBuffers (window);
}
// close GL context and any other GLFW resources
glfwTerminate();
return 0;
}
