forks/gldragon: glxdragon.cpp annotate

annotate glxdragon.cpp @ 2:b45d8958e5a6

Cosmetic indentation.

author	Matti Hamalainen <ccr@tnsp.org>
date	Sun, 27 Oct 2019 17:27:55 +0200
parents	3d74a9dd96e4
children	be31ff9e5f58

rev	line source
0 3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	1
3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	2 // Copyright (c) 2009, Thomas Trummer
3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	3 // All rights reserved.
3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	4 //
3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	5 // Redistribution and use in source and binary forms, with or without
3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	6 // modification, are permitted provided that the following conditions are met:
3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	7 // * Redistributions of source code must retain the above copyright
3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	8 // notice, this list of conditions and the following disclaimer.
3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	9 // * Redistributions in binary form must reproduce the above copyright
3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	10 // notice, this list of conditions and the following disclaimer in the
3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	11 // documentation and/or other materials provided with the distribution.
3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	12 // * Neither the name of the <organization> nor the
3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	13 // names of its contributors may be used to endorse or promote products
3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	14 // derived from this software without specific prior written permission.
3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	15 //
3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	16 // THIS SOFTWARE IS PROVIDED BY Thomas Trummer ''AS IS'' AND ANY
3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	17 // EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	18 // WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	19 // DISCLAIMED. IN NO EVENT SHALL <copyright holder> BE LIABLE FOR ANY
3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	20 // DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	21 // (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	22 // LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	23 // ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	24 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	25 // SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	26
3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	27
3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	28 #include <SDL.h>
3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	29 #include <SDL_opengl.h>
3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	30
3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	31 #include <iostream>
3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	32 #include <sstream>
3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	33 #include <fstream>
3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	34 #include <stdexcept>
3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	35 #include <string>
3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	36 #include <vector>
3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	37 #include <algorithm>
3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	38 #include <cstdio>
3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	39 #include <ctime>
3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	40
3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	41
3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	42 struct Mesh
3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	43 {
2 b45d8958e5a6 Cosmetic indentation. Matti Hamalainen <ccr@tnsp.org> parents: 0 diff changeset	44 std::vector <float> vertices;
b45d8958e5a6 Cosmetic indentation. Matti Hamalainen <ccr@tnsp.org> parents: 0 diff changeset	45 std::vector <unsigned> faces;
0 3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	46 }
3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	47 dragonMesh;
3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	48
3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	49
3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	50 void init(const int windowWidth, const int windowHeight, const std::string& windowTitle)
3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	51 {
2 b45d8958e5a6 Cosmetic indentation. Matti Hamalainen <ccr@tnsp.org> parents: 0 diff changeset	52 std::stringstream ss;
0 3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	53
3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	54
2 b45d8958e5a6 Cosmetic indentation. Matti Hamalainen <ccr@tnsp.org> parents: 0 diff changeset	55 if (SDL_Init(SDL_INIT_VIDEO) != 0)
b45d8958e5a6 Cosmetic indentation. Matti Hamalainen <ccr@tnsp.org> parents: 0 diff changeset	56 {
b45d8958e5a6 Cosmetic indentation. Matti Hamalainen <ccr@tnsp.org> parents: 0 diff changeset	57 ss << "Unable to initialize SDL: " << SDL_GetError() << '\n';
0 3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	58
2 b45d8958e5a6 Cosmetic indentation. Matti Hamalainen <ccr@tnsp.org> parents: 0 diff changeset	59 throw std::runtime_error(ss.str());
b45d8958e5a6 Cosmetic indentation. Matti Hamalainen <ccr@tnsp.org> parents: 0 diff changeset	60 }
0 3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	61
3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	62
2 b45d8958e5a6 Cosmetic indentation. Matti Hamalainen <ccr@tnsp.org> parents: 0 diff changeset	63 SDL_GL_SetAttribute(SDL_GL_RED_SIZE, 8);
b45d8958e5a6 Cosmetic indentation. Matti Hamalainen <ccr@tnsp.org> parents: 0 diff changeset	64 SDL_GL_SetAttribute(SDL_GL_GREEN_SIZE, 8);
b45d8958e5a6 Cosmetic indentation. Matti Hamalainen <ccr@tnsp.org> parents: 0 diff changeset	65 SDL_GL_SetAttribute(SDL_GL_BLUE_SIZE, 8);
b45d8958e5a6 Cosmetic indentation. Matti Hamalainen <ccr@tnsp.org> parents: 0 diff changeset	66 SDL_GL_SetAttribute(SDL_GL_DEPTH_SIZE, 24);
b45d8958e5a6 Cosmetic indentation. Matti Hamalainen <ccr@tnsp.org> parents: 0 diff changeset	67 SDL_GL_SetAttribute(SDL_GL_DOUBLEBUFFER, 1);
0 3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	68
3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	69
2 b45d8958e5a6 Cosmetic indentation. Matti Hamalainen <ccr@tnsp.org> parents: 0 diff changeset	70 SDL_WM_SetCaption(windowTitle.c_str(), 0);
0 3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	71
3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	72
2 b45d8958e5a6 Cosmetic indentation. Matti Hamalainen <ccr@tnsp.org> parents: 0 diff changeset	73 if ((SDL_SetVideoMode(windowWidth, windowHeight, 0, SDL_OPENGL)) == NULL)
b45d8958e5a6 Cosmetic indentation. Matti Hamalainen <ccr@tnsp.org> parents: 0 diff changeset	74 {
b45d8958e5a6 Cosmetic indentation. Matti Hamalainen <ccr@tnsp.org> parents: 0 diff changeset	75 ss << "Couldn't set GL mode: " << SDL_GetError() << '\n';
0 3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	76
2 b45d8958e5a6 Cosmetic indentation. Matti Hamalainen <ccr@tnsp.org> parents: 0 diff changeset	77 throw std::runtime_error(ss.str());
b45d8958e5a6 Cosmetic indentation. Matti Hamalainen <ccr@tnsp.org> parents: 0 diff changeset	78 }
0 3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	79
3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	80
2 b45d8958e5a6 Cosmetic indentation. Matti Hamalainen <ccr@tnsp.org> parents: 0 diff changeset	81 std::cout << "GL_VENDOR : " << glGetString(GL_VENDOR) << std::endl;
b45d8958e5a6 Cosmetic indentation. Matti Hamalainen <ccr@tnsp.org> parents: 0 diff changeset	82 std::cout << "GL_RENDERER : " << glGetString(GL_RENDERER) << std::endl;
b45d8958e5a6 Cosmetic indentation. Matti Hamalainen <ccr@tnsp.org> parents: 0 diff changeset	83 std::cout << "GL_VERSION : " << glGetString(GL_VERSION) << std::endl;
0 3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	84
2 b45d8958e5a6 Cosmetic indentation. Matti Hamalainen <ccr@tnsp.org> parents: 0 diff changeset	85 std::cout << std::endl;
0 3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	86
3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	87
2 b45d8958e5a6 Cosmetic indentation. Matti Hamalainen <ccr@tnsp.org> parents: 0 diff changeset	88 // Setup the window and view port
b45d8958e5a6 Cosmetic indentation. Matti Hamalainen <ccr@tnsp.org> parents: 0 diff changeset	89 glViewport(0, 0, windowWidth, windowHeight);
0 3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	90
3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	91 glMatrixMode(GL_PROJECTION);
3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	92 glLoadIdentity();
3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	93
3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	94 gluPerspective(45.0f, GLfloat(windowWidth) / GLfloat(windowHeight), 0.1f, 1000.0f);
3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	95
3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	96 glMatrixMode(GL_MODELVIEW);
3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	97 glLoadIdentity();
3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	98
3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	99
2 b45d8958e5a6 Cosmetic indentation. Matti Hamalainen <ccr@tnsp.org> parents: 0 diff changeset	100 // Enable back face culling
b45d8958e5a6 Cosmetic indentation. Matti Hamalainen <ccr@tnsp.org> parents: 0 diff changeset	101 glEnable(GL_CULL_FACE);
0 3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	102
3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	103 // Enable smooth shading
3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	104 glShadeModel(GL_SMOOTH);
3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	105
3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	106 // Enable the depth buffer
3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	107 glEnable(GL_DEPTH_TEST);
3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	108
3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	109 // Setup depth buffer
3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	110 glClearDepth(1.0f);
3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	111
3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	112 // Set the depth buffer function
3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	113 glDepthFunc(GL_LEQUAL);
3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	114
3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	115 // Enable vertex and and normal arrays
3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	116 glEnableClientState(GL_VERTEX_ARRAY);
3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	117 glEnableClientState(GL_NORMAL_ARRAY);
3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	118
3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	119 // Set correct perspective correction
3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	120 glHint(GL_PERSPECTIVE_CORRECTION_HINT, GL_NICEST);
3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	121 }
3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	122
3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	123
3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	124 void initScene()
3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	125 {
3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	126 glEnable(GL_COLOR_MATERIAL);
3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	127
3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	128 glColorMaterial(GL_FRONT, GL_AMBIENT_AND_DIFFUSE);
3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	129 glMateriali(GL_FRONT, GL_SHININESS, 96);
3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	130
3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	131 float specReflection[] = { 0.8f, 0.8f, 0.8f, 1.0f };
3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	132 glMaterialfv(GL_FRONT, GL_SPECULAR, specReflection);
3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	133
3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	134
3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	135 glEnable(GL_LIGHT0);
3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	136
3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	137 // Define the light components and position
2 b45d8958e5a6 Cosmetic indentation. Matti Hamalainen <ccr@tnsp.org> parents: 0 diff changeset	138 GLfloat ambient[] = { 0.2f, 0.2f, 0.2f, 1.0f };
b45d8958e5a6 Cosmetic indentation. Matti Hamalainen <ccr@tnsp.org> parents: 0 diff changeset	139 GLfloat diffuse[] = { 0.8f, 0.8f, 0.8f, 1.0f };
b45d8958e5a6 Cosmetic indentation. Matti Hamalainen <ccr@tnsp.org> parents: 0 diff changeset	140 GLfloat specular[] = { 0.5f, 0.5f, 0.5f, 1.0f };
0 3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	141 GLfloat position[] = { 10.0f, 10.0f, 0.0f, 0.0f };
3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	142
3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	143 // Define the light components and position
2 b45d8958e5a6 Cosmetic indentation. Matti Hamalainen <ccr@tnsp.org> parents: 0 diff changeset	144 glLightfv(GL_LIGHT0, GL_AMBIENT, ambient);
b45d8958e5a6 Cosmetic indentation. Matti Hamalainen <ccr@tnsp.org> parents: 0 diff changeset	145 glLightfv(GL_LIGHT0, GL_DIFFUSE, diffuse);
0 3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	146 glLightfv(GL_LIGHT0, GL_SPECULAR, specular);
3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	147 glLightfv(GL_LIGHT0, GL_POSITION, position);
3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	148
3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	149 // Define the camera
3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	150 gluLookAt(0, 0.12, 0.24, 0, 0.12, 0, 0, 1, 0);
3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	151 }
3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	152
3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	153
3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	154 void done()
3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	155 {
2 b45d8958e5a6 Cosmetic indentation. Matti Hamalainen <ccr@tnsp.org> parents: 0 diff changeset	156 SDL_Quit();
0 3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	157 }
3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	158
3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	159
3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	160 void drawModelVA(const Mesh& mesh)
3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	161 {
3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	162 int maxIndices;
3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	163
2 b45d8958e5a6 Cosmetic indentation. Matti Hamalainen <ccr@tnsp.org> parents: 0 diff changeset	164 glGetIntegerv(GL_MAX_ELEMENTS_INDICES, &maxIndices);
0 3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	165
3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	166
2 b45d8958e5a6 Cosmetic indentation. Matti Hamalainen <ccr@tnsp.org> parents: 0 diff changeset	167 glVertexPointer(3, GL_FLOAT, 24, &mesh.vertices[0]);
b45d8958e5a6 Cosmetic indentation. Matti Hamalainen <ccr@tnsp.org> parents: 0 diff changeset	168 glNormalPointer(GL_FLOAT, 24, &mesh.vertices[3]);
0 3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	169
3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	170
2 b45d8958e5a6 Cosmetic indentation. Matti Hamalainen <ccr@tnsp.org> parents: 0 diff changeset	171 for (size_t n = 0; n < mesh.faces.size() / 3; n += maxIndices)
b45d8958e5a6 Cosmetic indentation. Matti Hamalainen <ccr@tnsp.org> parents: 0 diff changeset	172 {
b45d8958e5a6 Cosmetic indentation. Matti Hamalainen <ccr@tnsp.org> parents: 0 diff changeset	173 const int count = std::min(maxIndices, int(mesh.faces.size() / 3 - n));
0 3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	174
2 b45d8958e5a6 Cosmetic indentation. Matti Hamalainen <ccr@tnsp.org> parents: 0 diff changeset	175 glDrawElements(GL_TRIANGLES, count * 3, GL_UNSIGNED_INT, &dragonMesh.faces[n * 3]);
b45d8958e5a6 Cosmetic indentation. Matti Hamalainen <ccr@tnsp.org> parents: 0 diff changeset	176 }
0 3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	177 }
3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	178
3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	179
3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	180 bool paintGL()
3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	181 {
3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	182 glClear(GL_DEPTH_BUFFER_BIT);
3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	183
3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	184
2 b45d8958e5a6 Cosmetic indentation. Matti Hamalainen <ccr@tnsp.org> parents: 0 diff changeset	185 glMatrixMode(GL_PROJECTION);
b45d8958e5a6 Cosmetic indentation. Matti Hamalainen <ccr@tnsp.org> parents: 0 diff changeset	186 glPushMatrix();
b45d8958e5a6 Cosmetic indentation. Matti Hamalainen <ccr@tnsp.org> parents: 0 diff changeset	187 glLoadIdentity();
0 3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	188
2 b45d8958e5a6 Cosmetic indentation. Matti Hamalainen <ccr@tnsp.org> parents: 0 diff changeset	189 glOrtho(0.0, 1.0, 0.0, 1.0, -1, 1);
0 3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	190
2 b45d8958e5a6 Cosmetic indentation. Matti Hamalainen <ccr@tnsp.org> parents: 0 diff changeset	191 glMatrixMode(GL_MODELVIEW);
b45d8958e5a6 Cosmetic indentation. Matti Hamalainen <ccr@tnsp.org> parents: 0 diff changeset	192 glPushMatrix();
b45d8958e5a6 Cosmetic indentation. Matti Hamalainen <ccr@tnsp.org> parents: 0 diff changeset	193 glLoadIdentity();
0 3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	194
3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	195
3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	196 glDisable(GL_DEPTH_TEST);
3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	197 glDisable(GL_LIGHTING);
3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	198
3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	199 // Draw the background gradient
2 b45d8958e5a6 Cosmetic indentation. Matti Hamalainen <ccr@tnsp.org> parents: 0 diff changeset	200 glBegin(GL_QUADS);
b45d8958e5a6 Cosmetic indentation. Matti Hamalainen <ccr@tnsp.org> parents: 0 diff changeset	201 {
b45d8958e5a6 Cosmetic indentation. Matti Hamalainen <ccr@tnsp.org> parents: 0 diff changeset	202 glColor3ub(0x3B, 0x3B, 0x75);
b45d8958e5a6 Cosmetic indentation. Matti Hamalainen <ccr@tnsp.org> parents: 0 diff changeset	203 glVertex2f(0.0f, 0.0f);
b45d8958e5a6 Cosmetic indentation. Matti Hamalainen <ccr@tnsp.org> parents: 0 diff changeset	204 glVertex2f(1.0f, 0.0f);
0 3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	205
2 b45d8958e5a6 Cosmetic indentation. Matti Hamalainen <ccr@tnsp.org> parents: 0 diff changeset	206 glColor3ub(0x00, 0x00, 0x00);
b45d8958e5a6 Cosmetic indentation. Matti Hamalainen <ccr@tnsp.org> parents: 0 diff changeset	207 glVertex2f(1.0f, 1.0f);
b45d8958e5a6 Cosmetic indentation. Matti Hamalainen <ccr@tnsp.org> parents: 0 diff changeset	208 glVertex2f(0.0f, 1.0f);
b45d8958e5a6 Cosmetic indentation. Matti Hamalainen <ccr@tnsp.org> parents: 0 diff changeset	209 }
b45d8958e5a6 Cosmetic indentation. Matti Hamalainen <ccr@tnsp.org> parents: 0 diff changeset	210 glEnd();
0 3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	211
3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	212
2 b45d8958e5a6 Cosmetic indentation. Matti Hamalainen <ccr@tnsp.org> parents: 0 diff changeset	213 // Restore the 3D projection
b45d8958e5a6 Cosmetic indentation. Matti Hamalainen <ccr@tnsp.org> parents: 0 diff changeset	214 glMatrixMode(GL_PROJECTION);
b45d8958e5a6 Cosmetic indentation. Matti Hamalainen <ccr@tnsp.org> parents: 0 diff changeset	215 glPopMatrix();
0 3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	216
2 b45d8958e5a6 Cosmetic indentation. Matti Hamalainen <ccr@tnsp.org> parents: 0 diff changeset	217 glMatrixMode(GL_MODELVIEW);
b45d8958e5a6 Cosmetic indentation. Matti Hamalainen <ccr@tnsp.org> parents: 0 diff changeset	218 glPopMatrix();
0 3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	219
3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	220
3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	221 glEnable(GL_DEPTH_TEST);
3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	222 glEnable(GL_LIGHTING);
3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	223
3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	224
3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	225 // Set the color of the model
3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	226 glColor3ub(0x90, 0x80, 0x90);
3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	227
3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	228 // Draw the model using vertex arrays
3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	229 drawModelVA(dragonMesh);
3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	230
3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	231 // Draw the current frame
3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	232 SDL_GL_SwapBuffers();
3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	233
3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	234
3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	235
3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	236 static int steps = 0;
3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	237
3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	238 // Rotate for 2 degrees
3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	239 glRotatef(2.0f, 0, 1, 0);
3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	240
3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	241 // Return true if a full rotation was done
3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	242 return (steps++ == 180) ? (steps = 0, true) : false;
3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	243 }
3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	244
3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	245
3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	246 void runEventLoop()
3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	247 {
2 b45d8958e5a6 Cosmetic indentation. Matti Hamalainen <ccr@tnsp.org> parents: 0 diff changeset	248 static std::clock_t startTime = std::clock();
0 3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	249
2 b45d8958e5a6 Cosmetic indentation. Matti Hamalainen <ccr@tnsp.org> parents: 0 diff changeset	250 while (true)
b45d8958e5a6 Cosmetic indentation. Matti Hamalainen <ccr@tnsp.org> parents: 0 diff changeset	251 {
b45d8958e5a6 Cosmetic indentation. Matti Hamalainen <ccr@tnsp.org> parents: 0 diff changeset	252 SDL_Event event;
0 3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	253
2 b45d8958e5a6 Cosmetic indentation. Matti Hamalainen <ccr@tnsp.org> parents: 0 diff changeset	254 if (SDL_PollEvent(&event))
b45d8958e5a6 Cosmetic indentation. Matti Hamalainen <ccr@tnsp.org> parents: 0 diff changeset	255 {
b45d8958e5a6 Cosmetic indentation. Matti Hamalainen <ccr@tnsp.org> parents: 0 diff changeset	256 if (event.type == SDL_QUIT)
b45d8958e5a6 Cosmetic indentation. Matti Hamalainen <ccr@tnsp.org> parents: 0 diff changeset	257 break;
b45d8958e5a6 Cosmetic indentation. Matti Hamalainen <ccr@tnsp.org> parents: 0 diff changeset	258 }
b45d8958e5a6 Cosmetic indentation. Matti Hamalainen <ccr@tnsp.org> parents: 0 diff changeset	259 else
b45d8958e5a6 Cosmetic indentation. Matti Hamalainen <ccr@tnsp.org> parents: 0 diff changeset	260 {
b45d8958e5a6 Cosmetic indentation. Matti Hamalainen <ccr@tnsp.org> parents: 0 diff changeset	261 // Render the next frame and test if a full turn was completed
b45d8958e5a6 Cosmetic indentation. Matti Hamalainen <ccr@tnsp.org> parents: 0 diff changeset	262 if (paintGL())
b45d8958e5a6 Cosmetic indentation. Matti Hamalainen <ccr@tnsp.org> parents: 0 diff changeset	263 {
b45d8958e5a6 Cosmetic indentation. Matti Hamalainen <ccr@tnsp.org> parents: 0 diff changeset	264 // Get the time it took to render a full turn
b45d8958e5a6 Cosmetic indentation. Matti Hamalainen <ccr@tnsp.org> parents: 0 diff changeset	265 double time = double(std::clock() - startTime) / CLOCKS_PER_SEC;
0 3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	266
2 b45d8958e5a6 Cosmetic indentation. Matti Hamalainen <ccr@tnsp.org> parents: 0 diff changeset	267 // Print the current frames per second
b45d8958e5a6 Cosmetic indentation. Matti Hamalainen <ccr@tnsp.org> parents: 0 diff changeset	268 std::printf("%.1lf seconds for 180 frames = %.1lf FPS\n", time, 180 / time);
0 3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	269
2 b45d8958e5a6 Cosmetic indentation. Matti Hamalainen <ccr@tnsp.org> parents: 0 diff changeset	270 // Restart the timer
b45d8958e5a6 Cosmetic indentation. Matti Hamalainen <ccr@tnsp.org> parents: 0 diff changeset	271 startTime = std::clock();
b45d8958e5a6 Cosmetic indentation. Matti Hamalainen <ccr@tnsp.org> parents: 0 diff changeset	272 }
b45d8958e5a6 Cosmetic indentation. Matti Hamalainen <ccr@tnsp.org> parents: 0 diff changeset	273 }
b45d8958e5a6 Cosmetic indentation. Matti Hamalainen <ccr@tnsp.org> parents: 0 diff changeset	274 }
0 3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	275 }
3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	276
3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	277
3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	278 void loadMesh(const std::string& fileName, Mesh& mesh)
3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	279 {
2 b45d8958e5a6 Cosmetic indentation. Matti Hamalainen <ccr@tnsp.org> parents: 0 diff changeset	280 std::ifstream in(fileName.c_str(), std::ios::binary);
0 3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	281
3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	282
2 b45d8958e5a6 Cosmetic indentation. Matti Hamalainen <ccr@tnsp.org> parents: 0 diff changeset	283 if (!in.is_open())
b45d8958e5a6 Cosmetic indentation. Matti Hamalainen <ccr@tnsp.org> parents: 0 diff changeset	284 {
b45d8958e5a6 Cosmetic indentation. Matti Hamalainen <ccr@tnsp.org> parents: 0 diff changeset	285 std::stringstream ss;
0 3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	286
2 b45d8958e5a6 Cosmetic indentation. Matti Hamalainen <ccr@tnsp.org> parents: 0 diff changeset	287 ss << "Unable to open file: " << fileName << '\n';
b45d8958e5a6 Cosmetic indentation. Matti Hamalainen <ccr@tnsp.org> parents: 0 diff changeset	288
b45d8958e5a6 Cosmetic indentation. Matti Hamalainen <ccr@tnsp.org> parents: 0 diff changeset	289 throw std::runtime_error(ss.str());
b45d8958e5a6 Cosmetic indentation. Matti Hamalainen <ccr@tnsp.org> parents: 0 diff changeset	290
b45d8958e5a6 Cosmetic indentation. Matti Hamalainen <ccr@tnsp.org> parents: 0 diff changeset	291 }
0 3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	292
3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	293
2 b45d8958e5a6 Cosmetic indentation. Matti Hamalainen <ccr@tnsp.org> parents: 0 diff changeset	294 mesh.vertices.resize(100139 * 6);
b45d8958e5a6 Cosmetic indentation. Matti Hamalainen <ccr@tnsp.org> parents: 0 diff changeset	295 in.read(reinterpret_cast<char>(&mesh.vertices[0]), 100139 6 * 4);
0 3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	296
3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	297
2 b45d8958e5a6 Cosmetic indentation. Matti Hamalainen <ccr@tnsp.org> parents: 0 diff changeset	298 mesh.faces.resize(200198 * 3);
b45d8958e5a6 Cosmetic indentation. Matti Hamalainen <ccr@tnsp.org> parents: 0 diff changeset	299 for (unsigned i = 0; i < 200198; i++)
b45d8958e5a6 Cosmetic indentation. Matti Hamalainen <ccr@tnsp.org> parents: 0 diff changeset	300 {
b45d8958e5a6 Cosmetic indentation. Matti Hamalainen <ccr@tnsp.org> parents: 0 diff changeset	301 in.seekg(1, std::ios::cur);
0 3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	302
2 b45d8958e5a6 Cosmetic indentation. Matti Hamalainen <ccr@tnsp.org> parents: 0 diff changeset	303 in.read(reinterpret_cast<char>(&mesh.faces[i 3]), 3 * 4);
b45d8958e5a6 Cosmetic indentation. Matti Hamalainen <ccr@tnsp.org> parents: 0 diff changeset	304 }
0 3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	305 }
3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	306
3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	307
3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	308 int main()
3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	309 {
2 b45d8958e5a6 Cosmetic indentation. Matti Hamalainen <ccr@tnsp.org> parents: 0 diff changeset	310 try
b45d8958e5a6 Cosmetic indentation. Matti Hamalainen <ccr@tnsp.org> parents: 0 diff changeset	311 {
b45d8958e5a6 Cosmetic indentation. Matti Hamalainen <ccr@tnsp.org> parents: 0 diff changeset	312 loadMesh("dragon.mesh", dragonMesh);
0 3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	313
2 b45d8958e5a6 Cosmetic indentation. Matti Hamalainen <ccr@tnsp.org> parents: 0 diff changeset	314 init(640, 480, "glxdragon");
0 3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	315
2 b45d8958e5a6 Cosmetic indentation. Matti Hamalainen <ccr@tnsp.org> parents: 0 diff changeset	316 initScene();
0 3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	317
2 b45d8958e5a6 Cosmetic indentation. Matti Hamalainen <ccr@tnsp.org> parents: 0 diff changeset	318 runEventLoop();
b45d8958e5a6 Cosmetic indentation. Matti Hamalainen <ccr@tnsp.org> parents: 0 diff changeset	319 }
b45d8958e5a6 Cosmetic indentation. Matti Hamalainen <ccr@tnsp.org> parents: 0 diff changeset	320 catch(std::runtime_error & e)
b45d8958e5a6 Cosmetic indentation. Matti Hamalainen <ccr@tnsp.org> parents: 0 diff changeset	321 {
b45d8958e5a6 Cosmetic indentation. Matti Hamalainen <ccr@tnsp.org> parents: 0 diff changeset	322 std::cerr << e.what();
b45d8958e5a6 Cosmetic indentation. Matti Hamalainen <ccr@tnsp.org> parents: 0 diff changeset	323 }
0 3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	324
2 b45d8958e5a6 Cosmetic indentation. Matti Hamalainen <ccr@tnsp.org> parents: 0 diff changeset	325 done();
0 3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	326 }

Mercurial > hg > forks > gldragon

annotate glxdragon.cpp @ 2:b45d8958e5a6