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@ -3,6 +3,11 @@ |
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#include <NSWrapper.hpp> |
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#include <png.hpp> |
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#include <moggle/core/gl.hpp> |
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#include <moggle/core/shader.hpp> |
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#include <moggle/core/vao.hpp> |
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#include <moggle/core/vbo.hpp> |
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#include <OpenGL/gl3.h> |
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#include <vector> |
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@ -16,12 +21,17 @@ using namespace std; |
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#define BUFFER_OFFSET(i) ((char *)NULL + (i)) |
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const GLfloat quad[] = { |
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struct Vertex{ |
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moggle::vector3<GLfloat> position; |
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moggle::vector3<GLfloat> color; |
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}; |
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const Vertex quad[] = { |
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// x y z, r g b
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1, -1, 0, 1, 0, 0, |
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-1, -1, 0, 0, 1, 0, |
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1, 1, 0, 0, 0, 1, |
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-1, 1, 0, 1, 1, 1 |
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{{1, -1, 0}, {1, 0, 0}}, |
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{{-1, -1, 0}, {0, 1, 0}}, |
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{{1, 1, 0}, {0, 0, 1}}, |
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{{-1, 1, 0}, {1, 1, 1}} |
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}; |
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static void check_shader(GLuint s){ |
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@ -43,70 +53,50 @@ string slurp(string filename) { |
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} |
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struct App { |
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float time; |
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GLuint program; |
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GLint uniform; |
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GLuint vao; |
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GLuint posBufferName; |
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float time = 0; |
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moggle::shader_program program; |
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moggle::vao v; |
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moggle::vbo<Vertex> quad_vbo; |
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enum { |
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POS_ATTR, |
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COL_ATTR |
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}; |
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void initialize(){ |
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time = 0; |
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program = glCreateProgram(); |
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auto v_source_str = slurp("Fractal.vsh"); |
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auto v_source = v_source_str.c_str(); |
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GLuint v = glCreateShader(GL_VERTEX_SHADER); |
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glShaderSource(v, 1, &v_source, NULL); |
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glCompileShader(v); |
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check_shader(v); |
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auto f_source_str = slurp("Fractal.fsh"); |
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auto f_source = f_source_str.c_str(); |
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GLuint f = glCreateShader(GL_FRAGMENT_SHADER); |
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glShaderSource(f, 1, &f_source, NULL); |
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glCompileShader(f); |
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check_shader(f); |
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glAttachShader(program, v); |
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glAttachShader(program, f); |
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glBindAttribLocation(program, 0, "position"); |
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glBindAttribLocation(program, 1, "color"); |
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glLinkProgram(program); |
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auto vs = moggle::shader::from_file(moggle::shader_type::vertex, "Fractal.vsh"); |
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auto fs = moggle::shader::from_file(moggle::shader_type::fragment, "Fractal.fsh"); |
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uniform = glGetUniformLocation(program, "rotation"); |
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program.attach(vs); |
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program.attach(fs); |
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glDetachShader(program, v); |
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glDeleteShader(v); |
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glDetachShader(program, f); |
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glDeleteShader(f); |
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program.bind_attribute(POS_ATTR, "position"); |
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program.bind_attribute(COL_ATTR, "color"); |
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glGenVertexArrays(1, &vao); |
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glBindVertexArray(vao); |
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program.link(); |
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glGenBuffers(1, &posBufferName); |
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glBindBuffer(GL_ARRAY_BUFFER, posBufferName); |
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glBufferData(GL_ARRAY_BUFFER, 4*6*4, quad, GL_STATIC_DRAW); |
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v.bind(); |
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quad_vbo.bind(GL_ARRAY_BUFFER); |
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quad_vbo.data(quad); |
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glEnableVertexAttribArray(0); |
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glEnableVertexAttribArray(1); |
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moggle::gl::enable_vertex_attribute_array(POS_ATTR); |
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moggle::gl::enable_vertex_attribute_array(COL_ATTR); |
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glVertexAttribPointer(0, 3, GL_FLOAT, GL_FALSE, 6*4, BUFFER_OFFSET(0)); |
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glVertexAttribPointer(1, 3, GL_FLOAT, GL_FALSE, 6*4, BUFFER_OFFSET(3*4)); |
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v.attribute(POS_ATTR, quad_vbo, &Vertex::position); |
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v.attribute(COL_ATTR, quad_vbo, &Vertex::color); |
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} |
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void draw(){ |
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time += 1/60.0f; |
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glClearColor(0.65f, 0.65f, 0.65f, 1.0f); |
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glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT); |
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moggle::gl::clear_color(0.65f, 0.65f, 0.65f, 1.0f); |
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moggle::gl::clear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT); |
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glUseProgram(program); |
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glUniform1f(uniform, time); |
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glBindVertexArray(vao); |
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program.use(); |
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program.uniform<GLfloat>("rotation").set(time); |
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v.bind(); |
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glDrawArrays(GL_TRIANGLE_STRIP, 0, 4); |
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moggle::gl::draw_arrays(GL_TRIANGLE_STRIP, 0, 4); |
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} |
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}; |
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@ -195,7 +185,7 @@ int main() { |
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app.create_window({ |
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[&](ContextParameters){ |
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a.initialize(); |
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b.initialize(); |
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// b.initialize();
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}, |
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[&](ContextParameters){ |
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a.draw(); |
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