forks/gldragon: glxdragon.cpp annotate

annotate glxdragon.cpp @ 7:95dd5417e7de

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author	Matti Hamalainen <ccr@tnsp.org>
date	Sun, 27 Oct 2019 22:20:17 +0200
parents	4d6fec8f0c64
children	628c42e94149

rev	line source
3 be31ff9e5f58 Port to libSDL2, clean up the code and some de-C++-ifications. Matti Hamalainen <ccr@tnsp.org> parents: 2 diff changeset	1 //
0 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 //
3 be31ff9e5f58 Port to libSDL2, clean up the code and some de-C++-ifications. Matti Hamalainen <ccr@tnsp.org> parents: 2 diff changeset	5 // Port to libSDL2 and cleanups by Matti Hämäläinen <ccr@tnsp.org>
be31ff9e5f58 Port to libSDL2, clean up the code and some de-C++-ifications. Matti Hamalainen <ccr@tnsp.org> parents: 2 diff changeset	6 // (C) Copyright 2019 Tecnic Software productions (TNSP)
be31ff9e5f58 Port to libSDL2, clean up the code and some de-C++-ifications. Matti Hamalainen <ccr@tnsp.org> parents: 2 diff changeset	7 //
0 3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	8 // 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	9 // modification, are permitted provided that the following conditions are met:
3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	10 // * Redistributions of source code must retain the above copyright
3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	11 // notice, this list of conditions and the following disclaimer.
3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	12 // * Redistributions in binary form must reproduce the above copyright
3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	13 // 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	14 // documentation and/or other materials provided with the distribution.
3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	15 // * Neither the name of the <organization> nor the
3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	16 // 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	17 // derived from this software without specific prior written permission.
3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	18 //
3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	19 // 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	20 // 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	21 // WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	22 // 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	23 // DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	24 // (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	25 // 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	26 // 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	27 // (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	28 // SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
3 be31ff9e5f58 Port to libSDL2, clean up the code and some de-C++-ifications. Matti Hamalainen <ccr@tnsp.org> parents: 2 diff changeset	29 //
0 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 <SDL.h>
3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	32 #include <SDL_opengl.h>
3 be31ff9e5f58 Port to libSDL2, clean up the code and some de-C++-ifications. Matti Hamalainen <ccr@tnsp.org> parents: 2 diff changeset	33 #include <GL/glu.h>
6 4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	34 #include <GL/glext.h>
0 3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	35
3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	36 #include <iostream>
3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	37 #include <fstream>
3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	38 #include <string>
3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	39 #include <vector>
3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	40 #include <cstdio>
3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	41 #include <ctime>
3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	42
3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	43
3 be31ff9e5f58 Port to libSDL2, clean up the code and some de-C++-ifications. Matti Hamalainen <ccr@tnsp.org> parents: 2 diff changeset	44 #define SET_FRAMES (180 * 2)
be31ff9e5f58 Port to libSDL2, clean up the code and some de-C++-ifications. Matti Hamalainen <ccr@tnsp.org> parents: 2 diff changeset	45
be31ff9e5f58 Port to libSDL2, clean up the code and some de-C++-ifications. Matti Hamalainen <ccr@tnsp.org> parents: 2 diff changeset	46
6 4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	47 bool opt_shaders = false;
4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	48 SDL_Window *sdl_window = NULL;
4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	49 SDL_GLContext sdl_glctx = NULL;
0 3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	50
3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	51
3 be31ff9e5f58 Port to libSDL2, clean up the code and some de-C++-ifications. Matti Hamalainen <ccr@tnsp.org> parents: 2 diff changeset	52 struct Mesh
0 3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	53 {
5 5dcae4dddcd9 Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 3 diff changeset	54 int nvertices, nfaces;
3 be31ff9e5f58 Port to libSDL2, clean up the code and some de-C++-ifications. Matti Hamalainen <ccr@tnsp.org> parents: 2 diff changeset	55 std::vector<float> vertices;
be31ff9e5f58 Port to libSDL2, clean up the code and some de-C++-ifications. Matti Hamalainen <ccr@tnsp.org> parents: 2 diff changeset	56 std::vector<unsigned> faces;
6 4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	57
4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	58 GLuint id_prog, id_ps, id_vs;
3 be31ff9e5f58 Port to libSDL2, clean up the code and some de-C++-ifications. Matti Hamalainen <ccr@tnsp.org> parents: 2 diff changeset	59 };
0 3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	60
3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	61
5 5dcae4dddcd9 Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 3 diff changeset	62
5dcae4dddcd9 Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 3 diff changeset	63 bool dmInitSDLGL(const int width, const int height, const char *title)
3 be31ff9e5f58 Port to libSDL2, clean up the code and some de-C++-ifications. Matti Hamalainen <ccr@tnsp.org> parents: 2 diff changeset	64 {
6 4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	65 // Set GL attributes
4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	66 SDL_GL_SetAttribute(SDL_GL_CONTEXT_MAJOR_VERSION, 2);
4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	67 SDL_GL_SetAttribute(SDL_GL_CONTEXT_MINOR_VERSION, 1);
4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	68 SDL_GL_SetAttribute(SDL_GL_CONTEXT_PROFILE_MASK, SDL_GL_CONTEXT_PROFILE_CORE);
4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	69
2 b45d8958e5a6 Cosmetic indentation. Matti Hamalainen <ccr@tnsp.org> parents: 0 diff changeset	70 SDL_GL_SetAttribute(SDL_GL_DEPTH_SIZE, 24);
b45d8958e5a6 Cosmetic indentation. Matti Hamalainen <ccr@tnsp.org> parents: 0 diff changeset	71 SDL_GL_SetAttribute(SDL_GL_DOUBLEBUFFER, 1);
0 3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	72
6 4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	73 // Attempt to initialize libSDL
3 be31ff9e5f58 Port to libSDL2, clean up the code and some de-C++-ifications. Matti Hamalainen <ccr@tnsp.org> parents: 2 diff changeset	74 if (SDL_Init(SDL_INIT_VIDEO \| SDL_INIT_TIMER \| SDL_INIT_EVENTS) != 0)
be31ff9e5f58 Port to libSDL2, clean up the code and some de-C++-ifications. Matti Hamalainen <ccr@tnsp.org> parents: 2 diff changeset	75 {
be31ff9e5f58 Port to libSDL2, clean up the code and some de-C++-ifications. Matti Hamalainen <ccr@tnsp.org> parents: 2 diff changeset	76 printf("ERROR: Unable to initialize SDL: %s\n",
be31ff9e5f58 Port to libSDL2, clean up the code and some de-C++-ifications. Matti Hamalainen <ccr@tnsp.org> parents: 2 diff changeset	77 SDL_GetError());
be31ff9e5f58 Port to libSDL2, clean up the code and some de-C++-ifications. Matti Hamalainen <ccr@tnsp.org> parents: 2 diff changeset	78 return false;
be31ff9e5f58 Port to libSDL2, clean up the code and some de-C++-ifications. Matti Hamalainen <ccr@tnsp.org> parents: 2 diff changeset	79 }
0 3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	80
6 4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	81 // Attempt to create a window
4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	82 if ((sdl_window = SDL_CreateWindow(title,
3 be31ff9e5f58 Port to libSDL2, clean up the code and some de-C++-ifications. Matti Hamalainen <ccr@tnsp.org> parents: 2 diff changeset	83 SDL_WINDOWPOS_CENTERED, SDL_WINDOWPOS_CENTERED,
be31ff9e5f58 Port to libSDL2, clean up the code and some de-C++-ifications. Matti Hamalainen <ccr@tnsp.org> parents: 2 diff changeset	84 width, height,
be31ff9e5f58 Port to libSDL2, clean up the code and some de-C++-ifications. Matti Hamalainen <ccr@tnsp.org> parents: 2 diff changeset	85 SDL_WINDOW_OPENGL \| SDL_WINDOW_SHOWN \| SDL_WINDOW_RESIZABLE)) == NULL)
2 b45d8958e5a6 Cosmetic indentation. Matti Hamalainen <ccr@tnsp.org> parents: 0 diff changeset	86 {
3 be31ff9e5f58 Port to libSDL2, clean up the code and some de-C++-ifications. Matti Hamalainen <ccr@tnsp.org> parents: 2 diff changeset	87 printf("ERROR: Could not create SDL window: %s",
be31ff9e5f58 Port to libSDL2, clean up the code and some de-C++-ifications. Matti Hamalainen <ccr@tnsp.org> parents: 2 diff changeset	88 SDL_GetError());
be31ff9e5f58 Port to libSDL2, clean up the code and some de-C++-ifications. Matti Hamalainen <ccr@tnsp.org> parents: 2 diff changeset	89 return false;
2 b45d8958e5a6 Cosmetic indentation. Matti Hamalainen <ccr@tnsp.org> parents: 0 diff changeset	90 }
0 3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	91
6 4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	92 if ((sdl_glctx = SDL_GL_CreateContext(sdl_window)) == NULL)
3 be31ff9e5f58 Port to libSDL2, clean up the code and some de-C++-ifications. Matti Hamalainen <ccr@tnsp.org> parents: 2 diff changeset	93 {
be31ff9e5f58 Port to libSDL2, clean up the code and some de-C++-ifications. Matti Hamalainen <ccr@tnsp.org> parents: 2 diff changeset	94 printf("ERROR: Unable to create SDL OpenGL context: %s\n",
be31ff9e5f58 Port to libSDL2, clean up the code and some de-C++-ifications. Matti Hamalainen <ccr@tnsp.org> parents: 2 diff changeset	95 SDL_GetError());
be31ff9e5f58 Port to libSDL2, clean up the code and some de-C++-ifications. Matti Hamalainen <ccr@tnsp.org> parents: 2 diff changeset	96 return false;
be31ff9e5f58 Port to libSDL2, clean up the code and some de-C++-ifications. Matti Hamalainen <ccr@tnsp.org> parents: 2 diff changeset	97 }
0 3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	98
6 4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	99 // Dump some information
3 be31ff9e5f58 Port to libSDL2, clean up the code and some de-C++-ifications. Matti Hamalainen <ccr@tnsp.org> parents: 2 diff changeset	100 printf(
be31ff9e5f58 Port to libSDL2, clean up the code and some de-C++-ifications. Matti Hamalainen <ccr@tnsp.org> parents: 2 diff changeset	101 "GL_VENDOR : %s\n"
be31ff9e5f58 Port to libSDL2, clean up the code and some de-C++-ifications. Matti Hamalainen <ccr@tnsp.org> parents: 2 diff changeset	102 "GL_RENDERER : %s\n"
be31ff9e5f58 Port to libSDL2, clean up the code and some de-C++-ifications. Matti Hamalainen <ccr@tnsp.org> parents: 2 diff changeset	103 "GL_VERSION : %s\n",
be31ff9e5f58 Port to libSDL2, clean up the code and some de-C++-ifications. Matti Hamalainen <ccr@tnsp.org> parents: 2 diff changeset	104 glGetString(GL_VENDOR),
be31ff9e5f58 Port to libSDL2, clean up the code and some de-C++-ifications. Matti Hamalainen <ccr@tnsp.org> parents: 2 diff changeset	105 glGetString(GL_RENDERER),
be31ff9e5f58 Port to libSDL2, clean up the code and some de-C++-ifications. Matti Hamalainen <ccr@tnsp.org> parents: 2 diff changeset	106 glGetString(GL_VERSION));
0 3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	107
2 b45d8958e5a6 Cosmetic indentation. Matti Hamalainen <ccr@tnsp.org> parents: 0 diff changeset	108 // Setup the window and view port
3 be31ff9e5f58 Port to libSDL2, clean up the code and some de-C++-ifications. Matti Hamalainen <ccr@tnsp.org> parents: 2 diff changeset	109 glViewport(0, 0, width, height);
0 3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	110
3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	111 glMatrixMode(GL_PROJECTION);
3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	112 glLoadIdentity();
3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	113
3 be31ff9e5f58 Port to libSDL2, clean up the code and some de-C++-ifications. Matti Hamalainen <ccr@tnsp.org> parents: 2 diff changeset	114 gluPerspective(45.0f, GLfloat(width) / GLfloat(height), 0.1f, 1000.0f);
0 3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	115
3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	116 glMatrixMode(GL_MODELVIEW);
3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	117 glLoadIdentity();
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
2 b45d8958e5a6 Cosmetic indentation. Matti Hamalainen <ccr@tnsp.org> parents: 0 diff changeset	120 // Enable back face culling
b45d8958e5a6 Cosmetic indentation. Matti Hamalainen <ccr@tnsp.org> parents: 0 diff changeset	121 glEnable(GL_CULL_FACE);
0 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 // Enable smooth shading
3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	124 glShadeModel(GL_SMOOTH);
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 // Enable the depth buffer
3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	127 glEnable(GL_DEPTH_TEST);
3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	128
3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	129 // Setup depth buffer
3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	130 glClearDepth(1.0f);
3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	131
3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	132 // Set the depth buffer function
3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	133 glDepthFunc(GL_LEQUAL);
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 // Enable vertex and and normal arrays
3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	136 glEnableClientState(GL_VERTEX_ARRAY);
3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	137 glEnableClientState(GL_NORMAL_ARRAY);
3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	138
3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	139 // Set correct perspective correction
3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	140 glHint(GL_PERSPECTIVE_CORRECTION_HINT, GL_NICEST);
3 be31ff9e5f58 Port to libSDL2, clean up the code and some de-C++-ifications. Matti Hamalainen <ccr@tnsp.org> parents: 2 diff changeset	141
be31ff9e5f58 Port to libSDL2, clean up the code and some de-C++-ifications. Matti Hamalainen <ccr@tnsp.org> parents: 2 diff changeset	142 return true;
0 3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	143 }
3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	144
3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	145
5 5dcae4dddcd9 Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 3 diff changeset	146 void dmDrawModelVA(const Mesh &mesh)
0 3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	147 {
3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	148 int maxIndices;
3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	149
2 b45d8958e5a6 Cosmetic indentation. Matti Hamalainen <ccr@tnsp.org> parents: 0 diff changeset	150 glGetIntegerv(GL_MAX_ELEMENTS_INDICES, &maxIndices);
0 3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	151
2 b45d8958e5a6 Cosmetic indentation. Matti Hamalainen <ccr@tnsp.org> parents: 0 diff changeset	152 glVertexPointer(3, GL_FLOAT, 24, &mesh.vertices[0]);
b45d8958e5a6 Cosmetic indentation. Matti Hamalainen <ccr@tnsp.org> parents: 0 diff changeset	153 glNormalPointer(GL_FLOAT, 24, &mesh.vertices[3]);
0 3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	154
5 5dcae4dddcd9 Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 3 diff changeset	155 for (int n = 0; n < mesh.nfaces; n += maxIndices)
2 b45d8958e5a6 Cosmetic indentation. Matti Hamalainen <ccr@tnsp.org> parents: 0 diff changeset	156 {
5 5dcae4dddcd9 Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 3 diff changeset	157 const int count = std::min(maxIndices, int(mesh.nfaces - n));
3 be31ff9e5f58 Port to libSDL2, clean up the code and some de-C++-ifications. Matti Hamalainen <ccr@tnsp.org> parents: 2 diff changeset	158 glDrawElements(GL_TRIANGLES, count * 3, GL_UNSIGNED_INT, &mesh.faces[n * 3]);
2 b45d8958e5a6 Cosmetic indentation. Matti Hamalainen <ccr@tnsp.org> parents: 0 diff changeset	159 }
0 3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	160 }
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
5 5dcae4dddcd9 Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 3 diff changeset	163 void dmPaintGL(Mesh &mesh)
0 3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	164 {
3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	165 glClear(GL_DEPTH_BUFFER_BIT);
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 glMatrixMode(GL_PROJECTION);
b45d8958e5a6 Cosmetic indentation. Matti Hamalainen <ccr@tnsp.org> parents: 0 diff changeset	168 glPushMatrix();
b45d8958e5a6 Cosmetic indentation. Matti Hamalainen <ccr@tnsp.org> parents: 0 diff changeset	169 glLoadIdentity();
0 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 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	172
2 b45d8958e5a6 Cosmetic indentation. Matti Hamalainen <ccr@tnsp.org> parents: 0 diff changeset	173 glMatrixMode(GL_MODELVIEW);
b45d8958e5a6 Cosmetic indentation. Matti Hamalainen <ccr@tnsp.org> parents: 0 diff changeset	174 glPushMatrix();
b45d8958e5a6 Cosmetic indentation. Matti Hamalainen <ccr@tnsp.org> parents: 0 diff changeset	175 glLoadIdentity();
0 3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	176
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 glDisable(GL_DEPTH_TEST);
3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	179 glDisable(GL_LIGHTING);
3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	180
3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	181 // Draw the background gradient
2 b45d8958e5a6 Cosmetic indentation. Matti Hamalainen <ccr@tnsp.org> parents: 0 diff changeset	182 glBegin(GL_QUADS);
b45d8958e5a6 Cosmetic indentation. Matti Hamalainen <ccr@tnsp.org> parents: 0 diff changeset	183 {
b45d8958e5a6 Cosmetic indentation. Matti Hamalainen <ccr@tnsp.org> parents: 0 diff changeset	184 glColor3ub(0x3B, 0x3B, 0x75);
b45d8958e5a6 Cosmetic indentation. Matti Hamalainen <ccr@tnsp.org> parents: 0 diff changeset	185 glVertex2f(0.0f, 0.0f);
b45d8958e5a6 Cosmetic indentation. Matti Hamalainen <ccr@tnsp.org> parents: 0 diff changeset	186 glVertex2f(1.0f, 0.0f);
0 3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	187
2 b45d8958e5a6 Cosmetic indentation. Matti Hamalainen <ccr@tnsp.org> parents: 0 diff changeset	188 glColor3ub(0x00, 0x00, 0x00);
b45d8958e5a6 Cosmetic indentation. Matti Hamalainen <ccr@tnsp.org> parents: 0 diff changeset	189 glVertex2f(1.0f, 1.0f);
b45d8958e5a6 Cosmetic indentation. Matti Hamalainen <ccr@tnsp.org> parents: 0 diff changeset	190 glVertex2f(0.0f, 1.0f);
b45d8958e5a6 Cosmetic indentation. Matti Hamalainen <ccr@tnsp.org> parents: 0 diff changeset	191 }
b45d8958e5a6 Cosmetic indentation. Matti Hamalainen <ccr@tnsp.org> parents: 0 diff changeset	192 glEnd();
0 3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	193
3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	194
2 b45d8958e5a6 Cosmetic indentation. Matti Hamalainen <ccr@tnsp.org> parents: 0 diff changeset	195 // Restore the 3D projection
b45d8958e5a6 Cosmetic indentation. Matti Hamalainen <ccr@tnsp.org> parents: 0 diff changeset	196 glMatrixMode(GL_PROJECTION);
b45d8958e5a6 Cosmetic indentation. Matti Hamalainen <ccr@tnsp.org> parents: 0 diff changeset	197 glPopMatrix();
0 3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	198
2 b45d8958e5a6 Cosmetic indentation. Matti Hamalainen <ccr@tnsp.org> parents: 0 diff changeset	199 glMatrixMode(GL_MODELVIEW);
b45d8958e5a6 Cosmetic indentation. Matti Hamalainen <ccr@tnsp.org> parents: 0 diff changeset	200 glPopMatrix();
0 3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	201
3 be31ff9e5f58 Port to libSDL2, clean up the code and some de-C++-ifications. Matti Hamalainen <ccr@tnsp.org> parents: 2 diff changeset	202 glEnable(GL_DEPTH_TEST);
0 3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	203
6 4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	204 // Render the model
4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	205 if (opt_shaders)
4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	206 {
4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	207 // Enable shader program
4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	208 glUseProgram(mesh.id_prog);
4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	209 dmDrawModelVA(mesh);
4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	210 glUseProgram(0);
4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	211 }
4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	212 else
4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	213 {
4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	214 // Set the color of the model
4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	215 glEnable(GL_LIGHTING);
4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	216 glColor3ub(0x90, 0x80, 0x90);
4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	217 dmDrawModelVA(mesh);
4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	218 }
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
6 4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	222 bool dmReadText(const std::string &filename, std::string &tstr)
4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	223 {
4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	224 std::ifstream in(filename.c_str());
4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	225
4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	226 if (!in.is_open())
4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	227 {
4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	228 printf("ERROR: Unable to open file '%s'.\n",
4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	229 filename.c_str());
4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	230 return false;
4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	231 }
4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	232
4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	233 in.seekg(0, std::ios::end);
4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	234 tstr.reserve(in.tellg());
4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	235 in.seekg(0, std::ios::beg);
4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	236
4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	237 tstr.assign((std::istreambuf_iterator<char>(in)), std::istreambuf_iterator<char>());
4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	238
4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	239 return true;
4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	240 }
4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	241
4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	242
4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	243 bool dmLoadMesh(const std::string &filename, Mesh &mesh, int nvertices, int nfaces)
0 3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	244 {
3 be31ff9e5f58 Port to libSDL2, clean up the code and some de-C++-ifications. Matti Hamalainen <ccr@tnsp.org> parents: 2 diff changeset	245 std::ifstream in(filename.c_str(), std::ios::binary);
0 3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	246
2 b45d8958e5a6 Cosmetic indentation. Matti Hamalainen <ccr@tnsp.org> parents: 0 diff changeset	247 if (!in.is_open())
b45d8958e5a6 Cosmetic indentation. Matti Hamalainen <ccr@tnsp.org> parents: 0 diff changeset	248 {
6 4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	249 printf("ERROR: Unable to open file '%s'.\n",
4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	250 filename.c_str());
4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	251 return false;
2 b45d8958e5a6 Cosmetic indentation. Matti Hamalainen <ccr@tnsp.org> parents: 0 diff changeset	252 }
0 3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	253
5 5dcae4dddcd9 Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 3 diff changeset	254 mesh.nvertices = nvertices;
5dcae4dddcd9 Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 3 diff changeset	255 mesh.vertices.resize(mesh.nvertices * 6);
5dcae4dddcd9 Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 3 diff changeset	256 in.read(reinterpret_cast<char>(&mesh.vertices[0]), mesh.nvertices 6 * 4);
0 3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	257
5 5dcae4dddcd9 Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 3 diff changeset	258 mesh.nfaces = nfaces;
5dcae4dddcd9 Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 3 diff changeset	259 mesh.faces.resize(mesh.nfaces * 3);
0 3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	260
5 5dcae4dddcd9 Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 3 diff changeset	261 for (int i = 0; i < nfaces; i++)
2 b45d8958e5a6 Cosmetic indentation. Matti Hamalainen <ccr@tnsp.org> parents: 0 diff changeset	262 {
b45d8958e5a6 Cosmetic indentation. Matti Hamalainen <ccr@tnsp.org> parents: 0 diff changeset	263 in.seekg(1, std::ios::cur);
b45d8958e5a6 Cosmetic indentation. Matti Hamalainen <ccr@tnsp.org> parents: 0 diff changeset	264 in.read(reinterpret_cast<char>(&mesh.faces[i 3]), 3 * 4);
b45d8958e5a6 Cosmetic indentation. Matti Hamalainen <ccr@tnsp.org> parents: 0 diff changeset	265 }
6 4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	266
4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	267 return true;
4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	268 }
4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	269
4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	270
4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	271 GLuint dmSetCompileShader(const GLenum stype, const std::string &src)
4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	272 {
4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	273 GLuint shader = glCreateShader(stype);
4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	274 const char *tmp = src.c_str();
4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	275
4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	276 glShaderSource(shader, 1, &tmp, 0);
4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	277 glCompileShader(shader);
4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	278
4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	279 return shader;
4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	280 }
4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	281
4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	282
4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	283 void dmLinkMeshShaders(Mesh &mesh)
4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	284 {
4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	285 mesh.id_prog = glCreateProgram();
4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	286 glAttachShader(mesh.id_prog, mesh.id_ps);
4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	287 glAttachShader(mesh.id_prog, mesh.id_vs);
4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	288 glLinkProgram(mesh.id_prog);
0 3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	289 }
3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	290
3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	291
6 4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	292 int main(int argc, char *argv[])
0 3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	293 {
6 4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	294 struct Mesh dragonMesh;
4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	295 std::string dragonVS, dragonFS;
4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	296 std::clock_t startTime;
7 95dd5417e7de Add simple help. Matti Hamalainen <ccr@tnsp.org> parents: 6 diff changeset	297 bool exitFlag = false, opt_showhelp = false;
6 4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	298 int steps = 0;
4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	299
4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	300 // Check commandline argument for enabling shaders
4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	301
7 95dd5417e7de Add simple help. Matti Hamalainen <ccr@tnsp.org> parents: 6 diff changeset	302 for (int narg = 1; narg < argc; narg++)
95dd5417e7de Add simple help. Matti Hamalainen <ccr@tnsp.org> parents: 6 diff changeset	303 {
95dd5417e7de Add simple help. Matti Hamalainen <ccr@tnsp.org> parents: 6 diff changeset	304 char *arg = argv[narg];
95dd5417e7de Add simple help. Matti Hamalainen <ccr@tnsp.org> parents: 6 diff changeset	305 if (strstr(arg, "help") != NULL \|\|
95dd5417e7de Add simple help. Matti Hamalainen <ccr@tnsp.org> parents: 6 diff changeset	306 strstr(arg, "?") != NULL)
95dd5417e7de Add simple help. Matti Hamalainen <ccr@tnsp.org> parents: 6 diff changeset	307 opt_showhelp = true;
95dd5417e7de Add simple help. Matti Hamalainen <ccr@tnsp.org> parents: 6 diff changeset	308 else
95dd5417e7de Add simple help. Matti Hamalainen <ccr@tnsp.org> parents: 6 diff changeset	309 if (strstr(arg, "glsl") != NULL \|\|
95dd5417e7de Add simple help. Matti Hamalainen <ccr@tnsp.org> parents: 6 diff changeset	310 strstr(arg, "sha") != NULL)
95dd5417e7de Add simple help. Matti Hamalainen <ccr@tnsp.org> parents: 6 diff changeset	311 opt_shaders = true;
95dd5417e7de Add simple help. Matti Hamalainen <ccr@tnsp.org> parents: 6 diff changeset	312 }
95dd5417e7de Add simple help. Matti Hamalainen <ccr@tnsp.org> parents: 6 diff changeset	313
95dd5417e7de Add simple help. Matti Hamalainen <ccr@tnsp.org> parents: 6 diff changeset	314 if (opt_showhelp)
95dd5417e7de Add simple help. Matti Hamalainen <ccr@tnsp.org> parents: 6 diff changeset	315 {
95dd5417e7de Add simple help. Matti Hamalainen <ccr@tnsp.org> parents: 6 diff changeset	316 printf(
95dd5417e7de Add simple help. Matti Hamalainen <ccr@tnsp.org> parents: 6 diff changeset	317 "Usage: %s [glsl]\n"
95dd5417e7de Add simple help. Matti Hamalainen <ccr@tnsp.org> parents: 6 diff changeset	318 "glsl argument will turn on GLSL shader mode instead of basic OpenGL lighting.\n"
95dd5417e7de Add simple help. Matti Hamalainen <ccr@tnsp.org> parents: 6 diff changeset	319 , argv[0]);
95dd5417e7de Add simple help. Matti Hamalainen <ccr@tnsp.org> parents: 6 diff changeset	320 goto exit;
95dd5417e7de Add simple help. Matti Hamalainen <ccr@tnsp.org> parents: 6 diff changeset	321 }
6 4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	322
4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	323 if (!dmLoadMesh("dragon.mesh", dragonMesh, 100139, 200198))
4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	324 goto exit;
4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	325
4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	326 if (opt_shaders)
2 b45d8958e5a6 Cosmetic indentation. Matti Hamalainen <ccr@tnsp.org> parents: 0 diff changeset	327 {
6 4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	328 // Read shader files
4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	329 if (!dmReadText("dragon.frag", dragonFS) \|\|
4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	330 !dmReadText("dragon.vert", dragonVS))
4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	331 goto exit;
4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	332 }
0 3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	333
6 4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	334 // Initialize SDL + OpenGL
4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	335 if (!dmInitSDLGL(1280, 960, "GLXDragon2"))
4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	336 goto exit;
3 be31ff9e5f58 Port to libSDL2, clean up the code and some de-C++-ifications. Matti Hamalainen <ccr@tnsp.org> parents: 2 diff changeset	337
6 4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	338 // According to our mode ..
4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	339 if (opt_shaders)
4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	340 {
4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	341 dragonMesh.id_ps = dmSetCompileShader(GL_FRAGMENT_SHADER, dragonFS);
4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	342 dragonMesh.id_vs = dmSetCompileShader(GL_VERTEX_SHADER, dragonVS);
4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	343 dmLinkMeshShaders(dragonMesh);
4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	344 }
4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	345 else
4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	346 {
4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	347 float specReflection[] = { 0.8f, 0.8f, 0.8f, 1.0f };
3 be31ff9e5f58 Port to libSDL2, clean up the code and some de-C++-ifications. Matti Hamalainen <ccr@tnsp.org> parents: 2 diff changeset	348
6 4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	349 glEnable(GL_COLOR_MATERIAL);
4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	350
4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	351 glColorMaterial(GL_FRONT, GL_AMBIENT_AND_DIFFUSE);
4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	352 glMateriali(GL_FRONT, GL_SHININESS, 96);
4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	353
4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	354 glMaterialfv(GL_FRONT, GL_SPECULAR, specReflection);
4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	355
4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	356 glEnable(GL_LIGHT0);
4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	357
4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	358 // Define the light components and position
4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	359 GLfloat ambient[] = { 0.2f, 0.2f, 0.2f, 1.0f };
4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	360 GLfloat diffuse[] = { 0.8f, 0.8f, 0.8f, 1.0f };
4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	361 GLfloat specular[] = { 0.5f, 0.5f, 0.5f, 1.0f };
4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	362 GLfloat position[] = { 10.0f, 10.0f, 0.0f, 0.0f };
3 be31ff9e5f58 Port to libSDL2, clean up the code and some de-C++-ifications. Matti Hamalainen <ccr@tnsp.org> parents: 2 diff changeset	363
6 4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	364 // Define the light components and position
4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	365 glLightfv(GL_LIGHT0, GL_AMBIENT, ambient);
4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	366 glLightfv(GL_LIGHT0, GL_DIFFUSE, diffuse);
4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	367 glLightfv(GL_LIGHT0, GL_SPECULAR, specular);
4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	368 glLightfv(GL_LIGHT0, GL_POSITION, position);
4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	369 }
4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	370
4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	371 // Define the camera
4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	372 gluLookAt(0, 0.12, 0.24, 0, 0.12, 0, 0, 1, 0);
4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	373
3 be31ff9e5f58 Port to libSDL2, clean up the code and some de-C++-ifications. Matti Hamalainen <ccr@tnsp.org> parents: 2 diff changeset	374
6 4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	375 // Main loop starts
4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	376 startTime = std::clock();
4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	377
4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	378 while (!exitFlag)
4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	379 {
4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	380 SDL_Event event;
3 be31ff9e5f58 Port to libSDL2, clean up the code and some de-C++-ifications. Matti Hamalainen <ccr@tnsp.org> parents: 2 diff changeset	381
6 4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	382 // Check for quit events
4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	383 while (SDL_PollEvent(&event))
4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	384 switch (event.type)
4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	385 {
4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	386 case SDL_QUIT:
4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	387 exitFlag = true;
4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	388 break;
3 be31ff9e5f58 Port to libSDL2, clean up the code and some de-C++-ifications. Matti Hamalainen <ccr@tnsp.org> parents: 2 diff changeset	389
6 4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	390 case SDL_KEYDOWN:
4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	391 switch (event.key.keysym.sym)
4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	392 {
4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	393 case SDLK_ESCAPE:
4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	394 case SDLK_q:
4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	395 exitFlag = true;
4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	396 break;
4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	397 }
4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	398 }
3 be31ff9e5f58 Port to libSDL2, clean up the code and some de-C++-ifications. Matti Hamalainen <ccr@tnsp.org> parents: 2 diff changeset	399
6 4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	400 // Render the next frame
4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	401 dmPaintGL(dragonMesh);
4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	402
4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	403 // Draw the current frame
4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	404 SDL_GL_SwapWindow(sdl_window);
3 be31ff9e5f58 Port to libSDL2, clean up the code and some de-C++-ifications. Matti Hamalainen <ccr@tnsp.org> parents: 2 diff changeset	405
6 4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	406 // Rotate for 2 degrees
4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	407 glRotatef(2.0f, 0, 1, 0);
4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	408
4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	409 // Return true if a full rotation was done
4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	410 if (steps++ == SET_FRAMES)
4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	411 {
4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	412 // Reset steps
4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	413 steps = 0;
3 be31ff9e5f58 Port to libSDL2, clean up the code and some de-C++-ifications. Matti Hamalainen <ccr@tnsp.org> parents: 2 diff changeset	414
6 4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	415 // Get the time it took to render a full turn
4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	416 double time = (double(std::clock() - startTime) * 1000.0f) / CLOCKS_PER_SEC;
3 be31ff9e5f58 Port to libSDL2, clean up the code and some de-C++-ifications. Matti Hamalainen <ccr@tnsp.org> parents: 2 diff changeset	417
6 4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	418 // Print the current frames per second
4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	419 printf("%.1lf ms for %d frames = %.1lf FPS\n",
4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	420 time, SET_FRAMES, (SET_FRAMES * 1000.0f) / time);
4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	421
4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	422 // Restart the timer
4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	423 startTime = std::clock();
3 be31ff9e5f58 Port to libSDL2, clean up the code and some de-C++-ifications. Matti Hamalainen <ccr@tnsp.org> parents: 2 diff changeset	424 }
2 b45d8958e5a6 Cosmetic indentation. Matti Hamalainen <ccr@tnsp.org> parents: 0 diff changeset	425 }
6 4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	426
4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	427 exit:
4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	428 if (sdl_glctx != NULL)
4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	429 SDL_GL_DeleteContext(sdl_glctx);
5 5dcae4dddcd9 Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 3 diff changeset	430
6 4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	431 if (sdl_window != NULL)
4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	432 SDL_DestroyWindow(sdl_window);
4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	433
4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	434 SDL_Quit();
4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	435
4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	436 return 0;
0 3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	437 }

Mercurial > hg > forks > gldragon

annotate glxdragon.cpp @ 7:95dd5417e7de