Es++ Sample: VertexAndIndexBufferARB |
/****************************************************************************** * * Copyright (c) 2017 Antillia.com TOSHIYUKI ARAI. ALL RIGHTS RESERVED. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions, and the following disclaimer. * * 2. The name of the author may not be used to endorse or promote products * derived from this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. * * * VertexAndIndexBufferARB.cpp * *****************************************************************************/ // #include <es++/opengl/OpenGLApplication.h> #include <es++/opengl/OpenGLMainView.h> #include <es++/opengl/OpenGLView.h> #include <es++/opengl/OpenGLGC.h> #include <es++/opengl/OpenGLLight.h> #include <es++/opengl/OpenGLMaterial.h> #include <es++/opengl/ColorNormalVertex.h> #include <es++/opengl/OpenGLVertex3.h> #include <es++/opengl/OpenGLClientState.h> #include <es++/openglarb/OpenGLVertexBufferARB.h> #include <es++/openglarb/OpenGLIndexBufferARB.h> #include <es++/opengl2/OpenGLVertexAttribute.h> #include <es++/gtkmm-3.0/FileOpenDialog.h> using namespace Gtk; namespace Es { class MainView :public Es::OpenGLMainView { private: /////////////////////////////////////////////////////// //Inner class starts. class SimpleView :public Es::OpenGLView { private: OpenGLGC gc; SmartPtr<OpenGLVertexBufferARB> vertexBuffer; SmartPtr<OpenGLIndexBufferARB> indexBuffer; int numVertices; int numIndices; public: SimpleView() :OpenGLView() { } void display() { if (vertexBuffer && indexBuffer) { gc.clear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT); gc.loadIdentity(); try { gc.translate(0.0f,0.0f,-1.0f); gc.lookAt(2.0, 4.0, 6.0, 0.0, 0.0, 0.0, 0.0, 1.0, 0.0); gc.clearColor(1.0f, 0.8f, 0.8f, 1.0f); //OpenGLClientState constructor enables its argument, and the destructor disables its argument. OpenGLClientState state1(GL_VERTEX_ARRAY); OpenGLClientState state2(GL_COLOR_ARRAY); OpenGLClientState state3(GL_NORMAL_ARRAY); const GLfloat lightPosition[] = { 5.0, 5.0, -8.0 , 1.0 }; const GLfloat lightColor[] = { 1.0, 0.0, 0.0 , 1.0 }; const GLfloat materialColor[] = { 0.8, 0.8, 0.4 , 1.0 }; OpenGLLight light(GL_LIGHT0); light.position(lightPosition); light.diffuse(lightColor); light.enable(); OpenGLMaterial material(GL_FRONT_AND_BACK ); material.diffuse(materialColor); vertexBuffer -> bind(); indexBuffer -> bind(); gc.interleavedArrays(GL_C4F_N3F_V3F, 0, NULL); gc.drawElements(GL_QUADS, numIndices, GL_UNSIGNED_INT, NULL); vertexBuffer -> unbind(); indexBuffer -> unbind(); } catch (Exception& ex) { caught(ex); } } } virtual void resize(int w, int h) { if (w == 0 || h == 0) { return; } gc.matrixMode(GL_PROJECTION); gc.loadIdentity(); gc.perspective(16.0, (double)w / (double)h, 0.5, 40.0); gc.matrixMode(GL_MODELVIEW); } virtual void initialize() { gc.enable( GL_DEPTH_TEST ); /* gc.matrixMode(GL_PROJECTION); gc.loadIdentity(); gc.frustum(1 , -1 , -1 , 1 , 1 , 10); gc.clearColor(0.0, 0.0, 1.0, 1.0); */ try { static ColorNormalVertex<float,4,3,3> vertices[] = { { 0.5f, 0.0f, 0.0f, 0.5f, -0.6f, 0.6f, 0.6f, -0.5f, 0.5f, 0.5f }, { 0.5f, 0.0f, 0.0f, 0.5f, -0.6f, -0.6f, 0.6f, -0.5f, -0.5f, 0.5f }, { 0.5f, 0.0f, 0.0f, 0.5f, 0.6f, 0.6f, 0.6f, 0.5f, 0.5f, 0.5f }, { 0.5f, 0.0f, 0.0f, 0.5f, 0.6f, -0.6f, 0.6f, 0.5f, -0.5f, 0.5f }, { 0.5f, 0.0f, 0.0f, 0.5f, 0.6f, 0.6f, -0.6f, 0.5f, 0.5f, -0.5f }, { 0.5f, 0.0f, 0.0f, 0.5f, 0.6f, -0.6f, -0.6f, 0.5f, -0.5f, -0.5f }, { 0.5f, 0.0f, 0.0f, 0.5f, -0.6f, 0.6f, -0.6f, -0.5f, 0.5f, -0.5f }, { 0.5f, 0.0f, 0.0f, 0.5f, -0.6f, -0.6f, -0.6f, -0.5f, -0.5f, -0.5f }, }; static GLuint indices[] = { 0, 2, 3, 1, 2, 4, 5, 3, 4, 6, 7, 5, 6, 0, 1, 7, 6, 4, 2, 0, 1, 3, 5, 7, }; gc.clear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT); gc.loadIdentity(); numVertices = SizeOf(vertices); vertexBuffer = new OpenGLVertexBufferARB(); vertexBuffer -> bind(); vertexBuffer -> data(//sizeof(vertices), numVertices*sizeof(ColorNormalVertex<float,4,3,3>), vertices, GL_STATIC_DRAW_ARB); vertexBuffer -> unbind(); numIndices = SizeOf( indices ); indexBuffer = new OpenGLIndexBufferARB(); indexBuffer -> bind(); indexBuffer -> data(numIndices*4, indices, GL_STATIC_DRAW_ARB); indexBuffer -> unbind(); } catch (Exception& ex) { caught(ex); } } }; // Inner class ends. /////////////////////////////////////////////////////// Es::HorizontalLayout horiz_layout; Es::VerticalLayout control_pane; SimpleView simple_view; Es::FileOpenDialog file_dialog; public: ////////////////////////////////////////////// //Constructor // MainView(Es::OpenGLApplication& applet, std::string& name, Es::Args& args) :OpenGLMainView(applet, name, args) ,file_dialog(*this, Es::FileOpenDialog::IMAGE_FILES) { int w = (int)args.get(XmNwidth); int h = (int)args.get(XmNheight); Es::MainLayout& main_layout = get_main_layout(); main_layout.pack_start(horiz_layout); horiz_layout.pack_start(simple_view); OpenGLContext* context = applet.getOpenGLContext(); simple_view.set_opacity (0.5); simple_view.set_opengl_context(context); simple_view.set_size_request(400, 400); show_all_children(); } void render() { simple_view.render(); } void file_open() { int rc = file_dialog.popup(); if (rc == Gtk::RESPONSE_OK) { const std::string filename = file_dialog.get_filename(); } } }; } int main(int argc, char** argv) { Es::Environment env; try { std::string name = argv[0]; Es::OpenGLApplication applet(argc, argv); Es::Args args; args.set(XmNx, 20); args.set(XmNy, 40); args.set(XmNwidth, 500); args.set(XmNheight,400); Es::MainView mainv(applet, name, args); mainv.show(); applet.run(mainv); } catch (Es::Exception& ex) { caught(ex); } catch (...) { printf("Get exception \n"); } return 0; }