forks/gldragon: glxdragon.cpp annotate

annotate glxdragon.cpp @ 21:1404dfcee7b8

More work on scenefile and model loading support. Can now load PLY models and simple scene definition files. Converted dragon mesh to binary PLY format.

author	Matti Hamalainen <ccr@tnsp.org>
date	Fri, 22 Nov 2019 03:03:52 +0200
parents	294c4c7943b5
children	03b86b9c2f29

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
21 1404dfcee7b8 More work on scenefile and model loading support. Matti Hamalainen <ccr@tnsp.org> parents: 20 diff changeset	36 #include "dmutil.h"
1404dfcee7b8 More work on scenefile and model loading support. Matti Hamalainen <ccr@tnsp.org> parents: 20 diff changeset	37 #include "dmmodel.h"
0 3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	38
16 c134a186912f Cosmetics. Matti Hamalainen <ccr@tnsp.org> parents: 15 diff changeset	39
11 89dc8caeff41 Improve option handling a bit. Matti Hamalainen <ccr@tnsp.org> parents: 10 diff changeset	40 /* Default settings etc. constants
89dc8caeff41 Improve option handling a bit. Matti Hamalainen <ccr@tnsp.org> parents: 10 diff changeset	41 */
18 b1e75c65016d Check for "too large" shader files. Matti Hamalainen <ccr@tnsp.org> parents: 17 diff changeset	42 #define SET_DEF_WIDTH 1280
b1e75c65016d Check for "too large" shader files. Matti Hamalainen <ccr@tnsp.org> parents: 17 diff changeset	43 #define SET_DEF_HEIGHT 960
b1e75c65016d Check for "too large" shader files. Matti Hamalainen <ccr@tnsp.org> parents: 17 diff changeset	44 #define SET_FRAMES (180)
b1e75c65016d Check for "too large" shader files. Matti Hamalainen <ccr@tnsp.org> parents: 17 diff changeset	45 #define SET_MAX_SHADER_SIZE (128 * 1024)
3 be31ff9e5f58 Port to libSDL2, clean up the code and some de-C++-ifications. Matti Hamalainen <ccr@tnsp.org> parents: 2 diff changeset	46
be31ff9e5f58 Port to libSDL2, clean up the code and some de-C++-ifications. Matti Hamalainen <ccr@tnsp.org> parents: 2 diff changeset	47
11 89dc8caeff41 Improve option handling a bit. Matti Hamalainen <ccr@tnsp.org> parents: 10 diff changeset	48 /* Options
89dc8caeff41 Improve option handling a bit. Matti Hamalainen <ccr@tnsp.org> parents: 10 diff changeset	49 */
89dc8caeff41 Improve option handling a bit. Matti Hamalainen <ccr@tnsp.org> parents: 10 diff changeset	50 bool optUseShaders = false;
89dc8caeff41 Improve option handling a bit. Matti Hamalainen <ccr@tnsp.org> parents: 10 diff changeset	51 int optWidth = SET_DEF_WIDTH,
13 c1e8057cc4d0 Improvements to option handling, add option for setting preferred vsync Matti Hamalainen <ccr@tnsp.org> parents: 12 diff changeset	52 optHeight = SET_DEF_HEIGHT,
c1e8057cc4d0 Improvements to option handling, add option for setting preferred vsync Matti Hamalainen <ccr@tnsp.org> parents: 12 diff changeset	53 optVSyncMode = 1;
c1e8057cc4d0 Improvements to option handling, add option for setting preferred vsync Matti Hamalainen <ccr@tnsp.org> parents: 12 diff changeset	54
11 89dc8caeff41 Improve option handling a bit. Matti Hamalainen <ccr@tnsp.org> parents: 10 diff changeset	55
89dc8caeff41 Improve option handling a bit. Matti Hamalainen <ccr@tnsp.org> parents: 10 diff changeset	56
89dc8caeff41 Improve option handling a bit. Matti Hamalainen <ccr@tnsp.org> parents: 10 diff changeset	57 /* Globals
89dc8caeff41 Improve option handling a bit. Matti Hamalainen <ccr@tnsp.org> parents: 10 diff changeset	58 */
89dc8caeff41 Improve option handling a bit. Matti Hamalainen <ccr@tnsp.org> parents: 10 diff changeset	59 SDL_Window *dmWindow = NULL;
89dc8caeff41 Improve option handling a bit. Matti Hamalainen <ccr@tnsp.org> parents: 10 diff changeset	60 SDL_GLContext dmGLContext = NULL;
89dc8caeff41 Improve option handling a bit. Matti Hamalainen <ccr@tnsp.org> parents: 10 diff changeset	61
89dc8caeff41 Improve option handling a bit. Matti Hamalainen <ccr@tnsp.org> parents: 10 diff changeset	62
21 1404dfcee7b8 More work on scenefile and model loading support. Matti Hamalainen <ccr@tnsp.org> parents: 20 diff changeset	63 /* Helpers
1404dfcee7b8 More work on scenefile and model loading support. Matti Hamalainen <ccr@tnsp.org> parents: 20 diff changeset	64 */
5 5dcae4dddcd9 Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 3 diff changeset	65 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	66 {
13 c1e8057cc4d0 Improvements to option handling, add option for setting preferred vsync Matti Hamalainen <ccr@tnsp.org> parents: 12 diff changeset	67 int ret;
c1e8057cc4d0 Improvements to option handling, add option for setting preferred vsync Matti Hamalainen <ccr@tnsp.org> parents: 12 diff changeset	68 std::string msg;
c1e8057cc4d0 Improvements to option handling, add option for setting preferred vsync Matti Hamalainen <ccr@tnsp.org> parents: 12 diff changeset	69
6 4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	70 // Set GL attributes
4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	71 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	72 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	73 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	74
2 b45d8958e5a6 Cosmetic indentation. Matti Hamalainen <ccr@tnsp.org> parents: 0 diff changeset	75 SDL_GL_SetAttribute(SDL_GL_DEPTH_SIZE, 24);
b45d8958e5a6 Cosmetic indentation. Matti Hamalainen <ccr@tnsp.org> parents: 0 diff changeset	76 SDL_GL_SetAttribute(SDL_GL_DOUBLEBUFFER, 1);
0 3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	77
6 4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	78 // 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	79 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	80 {
be31ff9e5f58 Port to libSDL2, clean up the code and some de-C++-ifications. Matti Hamalainen <ccr@tnsp.org> parents: 2 diff changeset	81 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	82 SDL_GetError());
be31ff9e5f58 Port to libSDL2, clean up the code and some de-C++-ifications. Matti Hamalainen <ccr@tnsp.org> parents: 2 diff changeset	83 return false;
be31ff9e5f58 Port to libSDL2, clean up the code and some de-C++-ifications. Matti Hamalainen <ccr@tnsp.org> parents: 2 diff changeset	84 }
0 3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	85
6 4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	86 // Attempt to create a window
8 628c42e94149 Clean up variable names. Matti Hamalainen <ccr@tnsp.org> parents: 7 diff changeset	87 if ((dmWindow = 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	88 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	89 width, height,
be31ff9e5f58 Port to libSDL2, clean up the code and some de-C++-ifications. Matti Hamalainen <ccr@tnsp.org> parents: 2 diff changeset	90 SDL_WINDOW_OPENGL \| SDL_WINDOW_SHOWN \| SDL_WINDOW_RESIZABLE)) == NULL)
2 b45d8958e5a6 Cosmetic indentation. Matti Hamalainen <ccr@tnsp.org> parents: 0 diff changeset	91 {
3 be31ff9e5f58 Port to libSDL2, clean up the code and some de-C++-ifications. Matti Hamalainen <ccr@tnsp.org> parents: 2 diff changeset	92 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	93 SDL_GetError());
be31ff9e5f58 Port to libSDL2, clean up the code and some de-C++-ifications. Matti Hamalainen <ccr@tnsp.org> parents: 2 diff changeset	94 return false;
2 b45d8958e5a6 Cosmetic indentation. Matti Hamalainen <ccr@tnsp.org> parents: 0 diff changeset	95 }
0 3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	96
8 628c42e94149 Clean up variable names. Matti Hamalainen <ccr@tnsp.org> parents: 7 diff changeset	97 if ((dmGLContext = SDL_GL_CreateContext(dmWindow)) == NULL)
3 be31ff9e5f58 Port to libSDL2, clean up the code and some de-C++-ifications. Matti Hamalainen <ccr@tnsp.org> parents: 2 diff changeset	98 {
be31ff9e5f58 Port to libSDL2, clean up the code and some de-C++-ifications. Matti Hamalainen <ccr@tnsp.org> parents: 2 diff changeset	99 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	100 SDL_GetError());
be31ff9e5f58 Port to libSDL2, clean up the code and some de-C++-ifications. Matti Hamalainen <ccr@tnsp.org> parents: 2 diff changeset	101 return false;
be31ff9e5f58 Port to libSDL2, clean up the code and some de-C++-ifications. Matti Hamalainen <ccr@tnsp.org> parents: 2 diff changeset	102 }
0 3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	103
13 c1e8057cc4d0 Improvements to option handling, add option for setting preferred vsync Matti Hamalainen <ccr@tnsp.org> parents: 12 diff changeset	104 // Check if we want to attempt to use vsync
c1e8057cc4d0 Improvements to option handling, add option for setting preferred vsync Matti Hamalainen <ccr@tnsp.org> parents: 12 diff changeset	105 switch (optVSyncMode)
c1e8057cc4d0 Improvements to option handling, add option for setting preferred vsync Matti Hamalainen <ccr@tnsp.org> parents: 12 diff changeset	106 {
c1e8057cc4d0 Improvements to option handling, add option for setting preferred vsync Matti Hamalainen <ccr@tnsp.org> parents: 12 diff changeset	107 case 3:
c1e8057cc4d0 Improvements to option handling, add option for setting preferred vsync Matti Hamalainen <ccr@tnsp.org> parents: 12 diff changeset	108 ret = SDL_GL_SetSwapInterval(-1);
c1e8057cc4d0 Improvements to option handling, add option for setting preferred vsync Matti Hamalainen <ccr@tnsp.org> parents: 12 diff changeset	109 msg = "adaptive vsync";
c1e8057cc4d0 Improvements to option handling, add option for setting preferred vsync Matti Hamalainen <ccr@tnsp.org> parents: 12 diff changeset	110 break;
c1e8057cc4d0 Improvements to option handling, add option for setting preferred vsync Matti Hamalainen <ccr@tnsp.org> parents: 12 diff changeset	111
c1e8057cc4d0 Improvements to option handling, add option for setting preferred vsync Matti Hamalainen <ccr@tnsp.org> parents: 12 diff changeset	112 case 2:
c1e8057cc4d0 Improvements to option handling, add option for setting preferred vsync Matti Hamalainen <ccr@tnsp.org> parents: 12 diff changeset	113 ret = SDL_GL_SetSwapInterval(1);
c1e8057cc4d0 Improvements to option handling, add option for setting preferred vsync Matti Hamalainen <ccr@tnsp.org> parents: 12 diff changeset	114 msg = "synchronized (vsync)";
c1e8057cc4d0 Improvements to option handling, add option for setting preferred vsync Matti Hamalainen <ccr@tnsp.org> parents: 12 diff changeset	115 break;
c1e8057cc4d0 Improvements to option handling, add option for setting preferred vsync Matti Hamalainen <ccr@tnsp.org> parents: 12 diff changeset	116
c1e8057cc4d0 Improvements to option handling, add option for setting preferred vsync Matti Hamalainen <ccr@tnsp.org> parents: 12 diff changeset	117 case 1:
c1e8057cc4d0 Improvements to option handling, add option for setting preferred vsync Matti Hamalainen <ccr@tnsp.org> parents: 12 diff changeset	118 ret = SDL_GL_SetSwapInterval(0);
c1e8057cc4d0 Improvements to option handling, add option for setting preferred vsync Matti Hamalainen <ccr@tnsp.org> parents: 12 diff changeset	119 msg = "immediate (no vsync)";
c1e8057cc4d0 Improvements to option handling, add option for setting preferred vsync Matti Hamalainen <ccr@tnsp.org> parents: 12 diff changeset	120 break;
c1e8057cc4d0 Improvements to option handling, add option for setting preferred vsync Matti Hamalainen <ccr@tnsp.org> parents: 12 diff changeset	121
c1e8057cc4d0 Improvements to option handling, add option for setting preferred vsync Matti Hamalainen <ccr@tnsp.org> parents: 12 diff changeset	122 default:
c1e8057cc4d0 Improvements to option handling, add option for setting preferred vsync Matti Hamalainen <ccr@tnsp.org> parents: 12 diff changeset	123 ret = -1;
c1e8057cc4d0 Improvements to option handling, add option for setting preferred vsync Matti Hamalainen <ccr@tnsp.org> parents: 12 diff changeset	124 msg = "INVALID VSYNC MODE";
c1e8057cc4d0 Improvements to option handling, add option for setting preferred vsync Matti Hamalainen <ccr@tnsp.org> parents: 12 diff changeset	125 break;
c1e8057cc4d0 Improvements to option handling, add option for setting preferred vsync Matti Hamalainen <ccr@tnsp.org> parents: 12 diff changeset	126 }
c1e8057cc4d0 Improvements to option handling, add option for setting preferred vsync Matti Hamalainen <ccr@tnsp.org> parents: 12 diff changeset	127
c1e8057cc4d0 Improvements to option handling, add option for setting preferred vsync Matti Hamalainen <ccr@tnsp.org> parents: 12 diff changeset	128 if (ret != 0)
c1e8057cc4d0 Improvements to option handling, add option for setting preferred vsync Matti Hamalainen <ccr@tnsp.org> parents: 12 diff changeset	129 {
c1e8057cc4d0 Improvements to option handling, add option for setting preferred vsync Matti Hamalainen <ccr@tnsp.org> parents: 12 diff changeset	130 printf("ERROR: Could not set vsync mode to %s.\n",
c1e8057cc4d0 Improvements to option handling, add option for setting preferred vsync Matti Hamalainen <ccr@tnsp.org> parents: 12 diff changeset	131 msg.c_str());
c1e8057cc4d0 Improvements to option handling, add option for setting preferred vsync Matti Hamalainen <ccr@tnsp.org> parents: 12 diff changeset	132 return false;
c1e8057cc4d0 Improvements to option handling, add option for setting preferred vsync Matti Hamalainen <ccr@tnsp.org> parents: 12 diff changeset	133 }
c1e8057cc4d0 Improvements to option handling, add option for setting preferred vsync Matti Hamalainen <ccr@tnsp.org> parents: 12 diff changeset	134
6 4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	135 // 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	136 printf(
be31ff9e5f58 Port to libSDL2, clean up the code and some de-C++-ifications. Matti Hamalainen <ccr@tnsp.org> parents: 2 diff changeset	137 "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	138 "GL_RENDERER : %s\n"
13 c1e8057cc4d0 Improvements to option handling, add option for setting preferred vsync Matti Hamalainen <ccr@tnsp.org> parents: 12 diff changeset	139 "GL_VERSION : %s\n"
c1e8057cc4d0 Improvements to option handling, add option for setting preferred vsync Matti Hamalainen <ccr@tnsp.org> parents: 12 diff changeset	140 "VSync mode : %s\n",
3 be31ff9e5f58 Port to libSDL2, clean up the code and some de-C++-ifications. Matti Hamalainen <ccr@tnsp.org> parents: 2 diff changeset	141 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	142 glGetString(GL_RENDERER),
13 c1e8057cc4d0 Improvements to option handling, add option for setting preferred vsync Matti Hamalainen <ccr@tnsp.org> parents: 12 diff changeset	143 glGetString(GL_VERSION),
c1e8057cc4d0 Improvements to option handling, add option for setting preferred vsync Matti Hamalainen <ccr@tnsp.org> parents: 12 diff changeset	144 msg.c_str());
0 3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	145
2 b45d8958e5a6 Cosmetic indentation. Matti Hamalainen <ccr@tnsp.org> parents: 0 diff changeset	146 // 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	147 glViewport(0, 0, width, height);
0 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 glMatrixMode(GL_PROJECTION);
3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	150 glLoadIdentity();
3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	151
3 be31ff9e5f58 Port to libSDL2, clean up the code and some de-C++-ifications. Matti Hamalainen <ccr@tnsp.org> parents: 2 diff changeset	152 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	153
3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	154 glMatrixMode(GL_MODELVIEW);
3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	155 glLoadIdentity();
3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	156
2 b45d8958e5a6 Cosmetic indentation. Matti Hamalainen <ccr@tnsp.org> parents: 0 diff changeset	157 // Enable back face culling
b45d8958e5a6 Cosmetic indentation. Matti Hamalainen <ccr@tnsp.org> parents: 0 diff changeset	158 glEnable(GL_CULL_FACE);
0 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 // Enable smooth shading
3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	161 glShadeModel(GL_SMOOTH);
3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	162
3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	163 // Enable the depth buffer
3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	164 glEnable(GL_DEPTH_TEST);
3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	165
21 1404dfcee7b8 More work on scenefile and model loading support. Matti Hamalainen <ccr@tnsp.org> parents: 20 diff changeset	166 // Enable normal rescaling
1404dfcee7b8 More work on scenefile and model loading support. Matti Hamalainen <ccr@tnsp.org> parents: 20 diff changeset	167 glEnable(GL_RESCALE_NORMAL);
1404dfcee7b8 More work on scenefile and model loading support. Matti Hamalainen <ccr@tnsp.org> parents: 20 diff changeset	168
0 3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	169 // Setup depth buffer
3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	170 glClearDepth(1.0f);
3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	171
3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	172 // Set the depth buffer function
3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	173 glDepthFunc(GL_LEQUAL);
3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	174
3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	175 // Enable vertex and and normal arrays
3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	176 glEnableClientState(GL_VERTEX_ARRAY);
3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	177 glEnableClientState(GL_NORMAL_ARRAY);
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 // Set correct perspective correction
3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	180 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	181
be31ff9e5f58 Port to libSDL2, clean up the code and some de-C++-ifications. Matti Hamalainen <ccr@tnsp.org> parents: 2 diff changeset	182 return true;
0 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
3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	185
21 1404dfcee7b8 More work on scenefile and model loading support. Matti Hamalainen <ccr@tnsp.org> parents: 20 diff changeset	186 void dmDrawModel(const DMModel &model)
0 3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	187 {
3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	188 int maxIndices;
3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	189
17 0fa9302e324d Cleanup. Matti Hamalainen <ccr@tnsp.org> parents: 16 diff changeset	190 if (optUseShaders)
0fa9302e324d Cleanup. Matti Hamalainen <ccr@tnsp.org> parents: 16 diff changeset	191 {
0fa9302e324d Cleanup. Matti Hamalainen <ccr@tnsp.org> parents: 16 diff changeset	192 // Enable shader program
21 1404dfcee7b8 More work on scenefile and model loading support. Matti Hamalainen <ccr@tnsp.org> parents: 20 diff changeset	193 glUseProgram(model.id_prog);
17 0fa9302e324d Cleanup. Matti Hamalainen <ccr@tnsp.org> parents: 16 diff changeset	194 }
0fa9302e324d Cleanup. Matti Hamalainen <ccr@tnsp.org> parents: 16 diff changeset	195 else
0fa9302e324d Cleanup. Matti Hamalainen <ccr@tnsp.org> parents: 16 diff changeset	196 {
0fa9302e324d Cleanup. Matti Hamalainen <ccr@tnsp.org> parents: 16 diff changeset	197 // Set the color of the model
0fa9302e324d Cleanup. Matti Hamalainen <ccr@tnsp.org> parents: 16 diff changeset	198 glEnable(GL_LIGHTING);
0fa9302e324d Cleanup. Matti Hamalainen <ccr@tnsp.org> parents: 16 diff changeset	199 glColor3ub(0x90, 0x80, 0x90);
0fa9302e324d Cleanup. Matti Hamalainen <ccr@tnsp.org> parents: 16 diff changeset	200 }
0fa9302e324d Cleanup. Matti Hamalainen <ccr@tnsp.org> parents: 16 diff changeset	201
0fa9302e324d Cleanup. Matti Hamalainen <ccr@tnsp.org> parents: 16 diff changeset	202 // Render the model
2 b45d8958e5a6 Cosmetic indentation. Matti Hamalainen <ccr@tnsp.org> parents: 0 diff changeset	203 glGetIntegerv(GL_MAX_ELEMENTS_INDICES, &maxIndices);
0 3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	204
21 1404dfcee7b8 More work on scenefile and model loading support. Matti Hamalainen <ccr@tnsp.org> parents: 20 diff changeset	205 glPushMatrix();
1404dfcee7b8 More work on scenefile and model loading support. Matti Hamalainen <ccr@tnsp.org> parents: 20 diff changeset	206
1404dfcee7b8 More work on scenefile and model loading support. Matti Hamalainen <ccr@tnsp.org> parents: 20 diff changeset	207 // Add transforms
1404dfcee7b8 More work on scenefile and model loading support. Matti Hamalainen <ccr@tnsp.org> parents: 20 diff changeset	208 glScalef(model.scale.x, model.scale.y, model.scale.z);
1404dfcee7b8 More work on scenefile and model loading support. Matti Hamalainen <ccr@tnsp.org> parents: 20 diff changeset	209 glTranslatef(model.translate.x, model.translate.y, model.translate. z);
1404dfcee7b8 More work on scenefile and model loading support. Matti Hamalainen <ccr@tnsp.org> parents: 20 diff changeset	210 glRotatef(model.rotate.x, 1.0f, 0.0f, 0.0f);
1404dfcee7b8 More work on scenefile and model loading support. Matti Hamalainen <ccr@tnsp.org> parents: 20 diff changeset	211 glRotatef(model.rotate.y, 0.0f, 1.0f, 0.0f);
1404dfcee7b8 More work on scenefile and model loading support. Matti Hamalainen <ccr@tnsp.org> parents: 20 diff changeset	212 glRotatef(model.rotate.z, 0.0f, 0.0f, 1.0f);
0 3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	213
21 1404dfcee7b8 More work on scenefile and model loading support. Matti Hamalainen <ccr@tnsp.org> parents: 20 diff changeset	214 glVertexPointer(3, GL_FLOAT, 0, &model.vertices[0]);
1404dfcee7b8 More work on scenefile and model loading support. Matti Hamalainen <ccr@tnsp.org> parents: 20 diff changeset	215 glNormalPointer( GL_FLOAT, 0, &model.normals[0]);
1404dfcee7b8 More work on scenefile and model loading support. Matti Hamalainen <ccr@tnsp.org> parents: 20 diff changeset	216
1404dfcee7b8 More work on scenefile and model loading support. Matti Hamalainen <ccr@tnsp.org> parents: 20 diff changeset	217 for (int n = 0; n < model.nfaces; n += maxIndices)
2 b45d8958e5a6 Cosmetic indentation. Matti Hamalainen <ccr@tnsp.org> parents: 0 diff changeset	218 {
21 1404dfcee7b8 More work on scenefile and model loading support. Matti Hamalainen <ccr@tnsp.org> parents: 20 diff changeset	219 const int count = std::min(maxIndices, model.nfaces - n);
1404dfcee7b8 More work on scenefile and model loading support. Matti Hamalainen <ccr@tnsp.org> parents: 20 diff changeset	220 glDrawElements(GL_TRIANGLES, count * 3, GL_UNSIGNED_INT, &model.faces[n * 3]);
2 b45d8958e5a6 Cosmetic indentation. Matti Hamalainen <ccr@tnsp.org> parents: 0 diff changeset	221 }
17 0fa9302e324d Cleanup. Matti Hamalainen <ccr@tnsp.org> parents: 16 diff changeset	222
21 1404dfcee7b8 More work on scenefile and model loading support. Matti Hamalainen <ccr@tnsp.org> parents: 20 diff changeset	223 glPopMatrix();
1404dfcee7b8 More work on scenefile and model loading support. Matti Hamalainen <ccr@tnsp.org> parents: 20 diff changeset	224
17 0fa9302e324d Cleanup. Matti Hamalainen <ccr@tnsp.org> parents: 16 diff changeset	225 // Restore
0fa9302e324d Cleanup. Matti Hamalainen <ccr@tnsp.org> parents: 16 diff changeset	226 if (optUseShaders)
0fa9302e324d Cleanup. Matti Hamalainen <ccr@tnsp.org> parents: 16 diff changeset	227 {
0fa9302e324d Cleanup. Matti Hamalainen <ccr@tnsp.org> parents: 16 diff changeset	228 glUseProgram(0);
0fa9302e324d Cleanup. Matti Hamalainen <ccr@tnsp.org> parents: 16 diff changeset	229 }
0 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
3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	232
21 1404dfcee7b8 More work on scenefile and model loading support. Matti Hamalainen <ccr@tnsp.org> parents: 20 diff changeset	233 void dmDrawScene(const DMSimpleScene &scene)
0 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 glClear(GL_DEPTH_BUFFER_BIT);
3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	236
2 b45d8958e5a6 Cosmetic indentation. Matti Hamalainen <ccr@tnsp.org> parents: 0 diff changeset	237 glMatrixMode(GL_PROJECTION);
b45d8958e5a6 Cosmetic indentation. Matti Hamalainen <ccr@tnsp.org> parents: 0 diff changeset	238 glPushMatrix();
b45d8958e5a6 Cosmetic indentation. Matti Hamalainen <ccr@tnsp.org> parents: 0 diff changeset	239 glLoadIdentity();
0 3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	240
2 b45d8958e5a6 Cosmetic indentation. Matti Hamalainen <ccr@tnsp.org> parents: 0 diff changeset	241 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	242
2 b45d8958e5a6 Cosmetic indentation. Matti Hamalainen <ccr@tnsp.org> parents: 0 diff changeset	243 glMatrixMode(GL_MODELVIEW);
b45d8958e5a6 Cosmetic indentation. Matti Hamalainen <ccr@tnsp.org> parents: 0 diff changeset	244 glPushMatrix();
b45d8958e5a6 Cosmetic indentation. Matti Hamalainen <ccr@tnsp.org> parents: 0 diff changeset	245 glLoadIdentity();
0 3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	246
17 0fa9302e324d Cleanup. Matti Hamalainen <ccr@tnsp.org> parents: 16 diff changeset	247 // Draw the background gradient
0 3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	248 glDisable(GL_DEPTH_TEST);
3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	249 glDisable(GL_LIGHTING);
2 b45d8958e5a6 Cosmetic indentation. Matti Hamalainen <ccr@tnsp.org> parents: 0 diff changeset	250 glBegin(GL_QUADS);
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 glColor3ub(0x3B, 0x3B, 0x75);
b45d8958e5a6 Cosmetic indentation. Matti Hamalainen <ccr@tnsp.org> parents: 0 diff changeset	253 glVertex2f(0.0f, 0.0f);
b45d8958e5a6 Cosmetic indentation. Matti Hamalainen <ccr@tnsp.org> parents: 0 diff changeset	254 glVertex2f(1.0f, 0.0f);
0 3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	255
2 b45d8958e5a6 Cosmetic indentation. Matti Hamalainen <ccr@tnsp.org> parents: 0 diff changeset	256 glColor3ub(0x00, 0x00, 0x00);
b45d8958e5a6 Cosmetic indentation. Matti Hamalainen <ccr@tnsp.org> parents: 0 diff changeset	257 glVertex2f(1.0f, 1.0f);
b45d8958e5a6 Cosmetic indentation. Matti Hamalainen <ccr@tnsp.org> parents: 0 diff changeset	258 glVertex2f(0.0f, 1.0f);
b45d8958e5a6 Cosmetic indentation. Matti Hamalainen <ccr@tnsp.org> parents: 0 diff changeset	259 }
b45d8958e5a6 Cosmetic indentation. Matti Hamalainen <ccr@tnsp.org> parents: 0 diff changeset	260 glEnd();
0 3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	261
3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	262
2 b45d8958e5a6 Cosmetic indentation. Matti Hamalainen <ccr@tnsp.org> parents: 0 diff changeset	263 // Restore the 3D projection
b45d8958e5a6 Cosmetic indentation. Matti Hamalainen <ccr@tnsp.org> parents: 0 diff changeset	264 glMatrixMode(GL_PROJECTION);
b45d8958e5a6 Cosmetic indentation. Matti Hamalainen <ccr@tnsp.org> parents: 0 diff changeset	265 glPopMatrix();
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 glMatrixMode(GL_MODELVIEW);
b45d8958e5a6 Cosmetic indentation. Matti Hamalainen <ccr@tnsp.org> parents: 0 diff changeset	268 glPopMatrix();
0 3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	269
3 be31ff9e5f58 Port to libSDL2, clean up the code and some de-C++-ifications. Matti Hamalainen <ccr@tnsp.org> parents: 2 diff changeset	270 glEnable(GL_DEPTH_TEST);
0 3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	271
21 1404dfcee7b8 More work on scenefile and model loading support. Matti Hamalainen <ccr@tnsp.org> parents: 20 diff changeset	272 // Draw models
1404dfcee7b8 More work on scenefile and model loading support. Matti Hamalainen <ccr@tnsp.org> parents: 20 diff changeset	273 for (const DMModel &model : scene.models)
1404dfcee7b8 More work on scenefile and model loading support. Matti Hamalainen <ccr@tnsp.org> parents: 20 diff changeset	274 dmDrawModel(model);
6 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
4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	277
8 628c42e94149 Clean up variable names. Matti Hamalainen <ccr@tnsp.org> parents: 7 diff changeset	278 GLuint dmCompileShader(const GLenum stype, const std::string &src)
6 4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	279 {
4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	280 GLuint shader = glCreateShader(stype);
4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	281 const char *tmp = src.c_str();
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 glShaderSource(shader, 1, &tmp, 0);
4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	284 glCompileShader(shader);
4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	285
4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	286 return shader;
4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	287 }
4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	288
4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	289
21 1404dfcee7b8 More work on scenefile and model loading support. Matti Hamalainen <ccr@tnsp.org> parents: 20 diff changeset	290 void dmLinkModelShaders(DMModel &model)
6 4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	291 {
21 1404dfcee7b8 More work on scenefile and model loading support. Matti Hamalainen <ccr@tnsp.org> parents: 20 diff changeset	292 model.id_prog = glCreateProgram();
1404dfcee7b8 More work on scenefile and model loading support. Matti Hamalainen <ccr@tnsp.org> parents: 20 diff changeset	293 glAttachShader(model.id_prog, model.id_fs);
1404dfcee7b8 More work on scenefile and model loading support. Matti Hamalainen <ccr@tnsp.org> parents: 20 diff changeset	294 glAttachShader(model.id_prog, model.id_vs);
1404dfcee7b8 More work on scenefile and model loading support. Matti Hamalainen <ccr@tnsp.org> parents: 20 diff changeset	295 glLinkProgram(model.id_prog);
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
3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	298
6 4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	299 int main(int argc, char *argv[])
0 3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	300 {
13 c1e8057cc4d0 Improvements to option handling, add option for setting preferred vsync Matti Hamalainen <ccr@tnsp.org> parents: 12 diff changeset	301 int startTime, cycleStart, cycleFrames = 0, totalFrames = 0;
c1e8057cc4d0 Improvements to option handling, add option for setting preferred vsync Matti Hamalainen <ccr@tnsp.org> parents: 12 diff changeset	302 double totalTime;
21 1404dfcee7b8 More work on scenefile and model loading support. Matti Hamalainen <ccr@tnsp.org> parents: 20 diff changeset	303 bool
1404dfcee7b8 More work on scenefile and model loading support. Matti Hamalainen <ccr@tnsp.org> parents: 20 diff changeset	304 exitFlag = false,
1404dfcee7b8 More work on scenefile and model loading support. Matti Hamalainen <ccr@tnsp.org> parents: 20 diff changeset	305 optShowHelp = false,
1404dfcee7b8 More work on scenefile and model loading support. Matti Hamalainen <ccr@tnsp.org> parents: 20 diff changeset	306 optSetInputFilename = false;
1404dfcee7b8 More work on scenefile and model loading support. Matti Hamalainen <ccr@tnsp.org> parents: 20 diff changeset	307 std::string optInputFilename = "dragon.scene", basePath;
1404dfcee7b8 More work on scenefile and model loading support. Matti Hamalainen <ccr@tnsp.org> parents: 20 diff changeset	308 DMSimpleScene scene;
6 4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	309
4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	310 // Check commandline argument for enabling shaders
7 95dd5417e7de Add simple help. Matti Hamalainen <ccr@tnsp.org> parents: 6 diff changeset	311 for (int narg = 1; narg < argc; narg++)
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 char *arg = argv[narg];
11 89dc8caeff41 Improve option handling a bit. Matti Hamalainen <ccr@tnsp.org> parents: 10 diff changeset	314 if (arg[0] == '-')
89dc8caeff41 Improve option handling a bit. Matti Hamalainen <ccr@tnsp.org> parents: 10 diff changeset	315 {
89dc8caeff41 Improve option handling a bit. Matti Hamalainen <ccr@tnsp.org> parents: 10 diff changeset	316 char *opt = arg + 1;
89dc8caeff41 Improve option handling a bit. Matti Hamalainen <ccr@tnsp.org> parents: 10 diff changeset	317
89dc8caeff41 Improve option handling a bit. Matti Hamalainen <ccr@tnsp.org> parents: 10 diff changeset	318 if ((opt[0] == '-' && opt[1] == 'h' && opt[2] == 'e') \|\|
12 52a586c344f4 Add option -m<filename prefix> to specify mesh/shader filename prefix. Matti Hamalainen <ccr@tnsp.org> parents: 11 diff changeset	319 opt[0] == '?' \|\| (opt[0] == '-' && opt[1] == '?'))
11 89dc8caeff41 Improve option handling a bit. Matti Hamalainen <ccr@tnsp.org> parents: 10 diff changeset	320 {
89dc8caeff41 Improve option handling a bit. Matti Hamalainen <ccr@tnsp.org> parents: 10 diff changeset	321 optShowHelp = true;
89dc8caeff41 Improve option handling a bit. Matti Hamalainen <ccr@tnsp.org> parents: 10 diff changeset	322 break;
89dc8caeff41 Improve option handling a bit. Matti Hamalainen <ccr@tnsp.org> parents: 10 diff changeset	323 }
89dc8caeff41 Improve option handling a bit. Matti Hamalainen <ccr@tnsp.org> parents: 10 diff changeset	324 else
89dc8caeff41 Improve option handling a bit. Matti Hamalainen <ccr@tnsp.org> parents: 10 diff changeset	325 if (opt[0] == '-')
89dc8caeff41 Improve option handling a bit. Matti Hamalainen <ccr@tnsp.org> parents: 10 diff changeset	326 opt++;
89dc8caeff41 Improve option handling a bit. Matti Hamalainen <ccr@tnsp.org> parents: 10 diff changeset	327
89dc8caeff41 Improve option handling a bit. Matti Hamalainen <ccr@tnsp.org> parents: 10 diff changeset	328 if (opt[0] == 'g')
89dc8caeff41 Improve option handling a bit. Matti Hamalainen <ccr@tnsp.org> parents: 10 diff changeset	329 optUseShaders = true;
89dc8caeff41 Improve option handling a bit. Matti Hamalainen <ccr@tnsp.org> parents: 10 diff changeset	330 else
13 c1e8057cc4d0 Improvements to option handling, add option for setting preferred vsync Matti Hamalainen <ccr@tnsp.org> parents: 12 diff changeset	331 switch (opt[0])
12 52a586c344f4 Add option -m<filename prefix> to specify mesh/shader filename prefix. Matti Hamalainen <ccr@tnsp.org> parents: 11 diff changeset	332 {
13 c1e8057cc4d0 Improvements to option handling, add option for setting preferred vsync Matti Hamalainen <ccr@tnsp.org> parents: 12 diff changeset	333 case 'w':
c1e8057cc4d0 Improvements to option handling, add option for setting preferred vsync Matti Hamalainen <ccr@tnsp.org> parents: 12 diff changeset	334 case 'h':
c1e8057cc4d0 Improvements to option handling, add option for setting preferred vsync Matti Hamalainen <ccr@tnsp.org> parents: 12 diff changeset	335 case 'm':
c1e8057cc4d0 Improvements to option handling, add option for setting preferred vsync Matti Hamalainen <ccr@tnsp.org> parents: 12 diff changeset	336 case 'v':
c1e8057cc4d0 Improvements to option handling, add option for setting preferred vsync Matti Hamalainen <ccr@tnsp.org> parents: 12 diff changeset	337 if (opt[1] == 0)
c1e8057cc4d0 Improvements to option handling, add option for setting preferred vsync Matti Hamalainen <ccr@tnsp.org> parents: 12 diff changeset	338 {
c1e8057cc4d0 Improvements to option handling, add option for setting preferred vsync Matti Hamalainen <ccr@tnsp.org> parents: 12 diff changeset	339 printf("Option '%s' requires an argument.\n", opt);
c1e8057cc4d0 Improvements to option handling, add option for setting preferred vsync Matti Hamalainen <ccr@tnsp.org> parents: 12 diff changeset	340 goto exit;
c1e8057cc4d0 Improvements to option handling, add option for setting preferred vsync Matti Hamalainen <ccr@tnsp.org> parents: 12 diff changeset	341 }
c1e8057cc4d0 Improvements to option handling, add option for setting preferred vsync Matti Hamalainen <ccr@tnsp.org> parents: 12 diff changeset	342
c1e8057cc4d0 Improvements to option handling, add option for setting preferred vsync Matti Hamalainen <ccr@tnsp.org> parents: 12 diff changeset	343 switch (opt[0])
c1e8057cc4d0 Improvements to option handling, add option for setting preferred vsync Matti Hamalainen <ccr@tnsp.org> parents: 12 diff changeset	344 {
c1e8057cc4d0 Improvements to option handling, add option for setting preferred vsync Matti Hamalainen <ccr@tnsp.org> parents: 12 diff changeset	345 case 'w': optWidth = atoi(opt + 1); break;
c1e8057cc4d0 Improvements to option handling, add option for setting preferred vsync Matti Hamalainen <ccr@tnsp.org> parents: 12 diff changeset	346 case 'h': optHeight = atoi(opt + 1); break;
c1e8057cc4d0 Improvements to option handling, add option for setting preferred vsync Matti Hamalainen <ccr@tnsp.org> parents: 12 diff changeset	347 case 'v': optVSyncMode = atoi(opt + 1); break;
c1e8057cc4d0 Improvements to option handling, add option for setting preferred vsync Matti Hamalainen <ccr@tnsp.org> parents: 12 diff changeset	348 }
c1e8057cc4d0 Improvements to option handling, add option for setting preferred vsync Matti Hamalainen <ccr@tnsp.org> parents: 12 diff changeset	349 break;
c1e8057cc4d0 Improvements to option handling, add option for setting preferred vsync Matti Hamalainen <ccr@tnsp.org> parents: 12 diff changeset	350
c1e8057cc4d0 Improvements to option handling, add option for setting preferred vsync Matti Hamalainen <ccr@tnsp.org> parents: 12 diff changeset	351 default:
c1e8057cc4d0 Improvements to option handling, add option for setting preferred vsync Matti Hamalainen <ccr@tnsp.org> parents: 12 diff changeset	352 printf("Unknown option '%s'.\n", opt);
12 52a586c344f4 Add option -m<filename prefix> to specify mesh/shader filename prefix. Matti Hamalainen <ccr@tnsp.org> parents: 11 diff changeset	353 goto exit;
52a586c344f4 Add option -m<filename prefix> to specify mesh/shader filename prefix. Matti Hamalainen <ccr@tnsp.org> parents: 11 diff changeset	354 }
11 89dc8caeff41 Improve option handling a bit. Matti Hamalainen <ccr@tnsp.org> parents: 10 diff changeset	355 }
21 1404dfcee7b8 More work on scenefile and model loading support. Matti Hamalainen <ccr@tnsp.org> parents: 20 diff changeset	356 else
1404dfcee7b8 More work on scenefile and model loading support. Matti Hamalainen <ccr@tnsp.org> parents: 20 diff changeset	357 {
1404dfcee7b8 More work on scenefile and model loading support. Matti Hamalainen <ccr@tnsp.org> parents: 20 diff changeset	358 if (optSetInputFilename)
1404dfcee7b8 More work on scenefile and model loading support. Matti Hamalainen <ccr@tnsp.org> parents: 20 diff changeset	359 {
1404dfcee7b8 More work on scenefile and model loading support. Matti Hamalainen <ccr@tnsp.org> parents: 20 diff changeset	360 printf("ERROR: Please specify only one scene file.\n");
1404dfcee7b8 More work on scenefile and model loading support. Matti Hamalainen <ccr@tnsp.org> parents: 20 diff changeset	361 goto exit;
1404dfcee7b8 More work on scenefile and model loading support. Matti Hamalainen <ccr@tnsp.org> parents: 20 diff changeset	362 }
1404dfcee7b8 More work on scenefile and model loading support. Matti Hamalainen <ccr@tnsp.org> parents: 20 diff changeset	363
1404dfcee7b8 More work on scenefile and model loading support. Matti Hamalainen <ccr@tnsp.org> parents: 20 diff changeset	364 optSetInputFilename = true;
1404dfcee7b8 More work on scenefile and model loading support. Matti Hamalainen <ccr@tnsp.org> parents: 20 diff changeset	365 optInputFilename = std::string(arg);
1404dfcee7b8 More work on scenefile and model loading support. Matti Hamalainen <ccr@tnsp.org> parents: 20 diff changeset	366 if (optInputFilename.empty())
1404dfcee7b8 More work on scenefile and model loading support. Matti Hamalainen <ccr@tnsp.org> parents: 20 diff changeset	367 {
1404dfcee7b8 More work on scenefile and model loading support. Matti Hamalainen <ccr@tnsp.org> parents: 20 diff changeset	368 printf("ERROR: Invalid input filename.\n");
1404dfcee7b8 More work on scenefile and model loading support. Matti Hamalainen <ccr@tnsp.org> parents: 20 diff changeset	369 goto exit;
1404dfcee7b8 More work on scenefile and model loading support. Matti Hamalainen <ccr@tnsp.org> parents: 20 diff changeset	370 }
1404dfcee7b8 More work on scenefile and model loading support. Matti Hamalainen <ccr@tnsp.org> parents: 20 diff changeset	371
1404dfcee7b8 More work on scenefile and model loading support. Matti Hamalainen <ccr@tnsp.org> parents: 20 diff changeset	372 }
7 95dd5417e7de Add simple help. Matti Hamalainen <ccr@tnsp.org> parents: 6 diff changeset	373 }
95dd5417e7de Add simple help. Matti Hamalainen <ccr@tnsp.org> parents: 6 diff changeset	374
8 628c42e94149 Clean up variable names. Matti Hamalainen <ccr@tnsp.org> parents: 7 diff changeset	375 if (optShowHelp)
7 95dd5417e7de Add simple help. Matti Hamalainen <ccr@tnsp.org> parents: 6 diff changeset	376 {
95dd5417e7de Add simple help. Matti Hamalainen <ccr@tnsp.org> parents: 6 diff changeset	377 printf(
21 1404dfcee7b8 More work on scenefile and model loading support. Matti Hamalainen <ccr@tnsp.org> parents: 20 diff changeset	378 "Usage: %s [options] [<scenefile.scene>]\n"
12 52a586c344f4 Add option -m<filename prefix> to specify mesh/shader filename prefix. Matti Hamalainen <ccr@tnsp.org> parents: 11 diff changeset	379 "-? Show this help\n"
52a586c344f4 Add option -m<filename prefix> to specify mesh/shader filename prefix. Matti Hamalainen <ccr@tnsp.org> parents: 11 diff changeset	380 "-g Use GLSL shader instead of basic OpenGL lighting\n"
52a586c344f4 Add option -m<filename prefix> to specify mesh/shader filename prefix. Matti Hamalainen <ccr@tnsp.org> parents: 11 diff changeset	381 "-w<width> Window width (default %d)\n"
52a586c344f4 Add option -m<filename prefix> to specify mesh/shader filename prefix. Matti Hamalainen <ccr@tnsp.org> parents: 11 diff changeset	382 "-h<height> Window height (default %d)\n"
13 c1e8057cc4d0 Improvements to option handling, add option for setting preferred vsync Matti Hamalainen <ccr@tnsp.org> parents: 12 diff changeset	383 "-v<1-3> Set vsync mode: 1 = no vsync, 2 = vsync, 3 = adaptive\n"
21 1404dfcee7b8 More work on scenefile and model loading support. Matti Hamalainen <ccr@tnsp.org> parents: 20 diff changeset	384 " Default is no vsync. Using vsync will result in FPS being\n"
1404dfcee7b8 More work on scenefile and model loading support. Matti Hamalainen <ccr@tnsp.org> parents: 20 diff changeset	385 " approx whatever your monitor refresh rate is.\n"
11 89dc8caeff41 Improve option handling a bit. Matti Hamalainen <ccr@tnsp.org> parents: 10 diff changeset	386 "\n",
89dc8caeff41 Improve option handling a bit. Matti Hamalainen <ccr@tnsp.org> parents: 10 diff changeset	387 argv[0],
89dc8caeff41 Improve option handling a bit. Matti Hamalainen <ccr@tnsp.org> parents: 10 diff changeset	388 SET_DEF_WIDTH, SET_DEF_HEIGHT
89dc8caeff41 Improve option handling a bit. Matti Hamalainen <ccr@tnsp.org> parents: 10 diff changeset	389 );
89dc8caeff41 Improve option handling a bit. Matti Hamalainen <ccr@tnsp.org> parents: 10 diff changeset	390
7 95dd5417e7de Add simple help. Matti Hamalainen <ccr@tnsp.org> parents: 6 diff changeset	391 goto exit;
95dd5417e7de Add simple help. Matti Hamalainen <ccr@tnsp.org> parents: 6 diff changeset	392 }
6 4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	393
13 c1e8057cc4d0 Improvements to option handling, add option for setting preferred vsync Matti Hamalainen <ccr@tnsp.org> parents: 12 diff changeset	394 if (optWidth < 100 \|\| optWidth > 8192 \|\| optHeight < 100 \|\| optHeight > 8192)
c1e8057cc4d0 Improvements to option handling, add option for setting preferred vsync Matti Hamalainen <ccr@tnsp.org> parents: 12 diff changeset	395 {
c1e8057cc4d0 Improvements to option handling, add option for setting preferred vsync Matti Hamalainen <ccr@tnsp.org> parents: 12 diff changeset	396 printf("ERROR: Invalid window width or height (%d x %d).\n",
c1e8057cc4d0 Improvements to option handling, add option for setting preferred vsync Matti Hamalainen <ccr@tnsp.org> parents: 12 diff changeset	397 optWidth, optHeight);
c1e8057cc4d0 Improvements to option handling, add option for setting preferred vsync Matti Hamalainen <ccr@tnsp.org> parents: 12 diff changeset	398 goto exit;
c1e8057cc4d0 Improvements to option handling, add option for setting preferred vsync Matti Hamalainen <ccr@tnsp.org> parents: 12 diff changeset	399 }
c1e8057cc4d0 Improvements to option handling, add option for setting preferred vsync Matti Hamalainen <ccr@tnsp.org> parents: 12 diff changeset	400
21 1404dfcee7b8 More work on scenefile and model loading support. Matti Hamalainen <ccr@tnsp.org> parents: 20 diff changeset	401 // Load the scene
1404dfcee7b8 More work on scenefile and model loading support. Matti Hamalainen <ccr@tnsp.org> parents: 20 diff changeset	402 if (!scene.loadInfo(optInputFilename))
1404dfcee7b8 More work on scenefile and model loading support. Matti Hamalainen <ccr@tnsp.org> parents: 20 diff changeset	403 goto exit;
1404dfcee7b8 More work on scenefile and model loading support. Matti Hamalainen <ccr@tnsp.org> parents: 20 diff changeset	404
1404dfcee7b8 More work on scenefile and model loading support. Matti Hamalainen <ccr@tnsp.org> parents: 20 diff changeset	405 if (scene.models.size() == 0)
12 52a586c344f4 Add option -m<filename prefix> to specify mesh/shader filename prefix. Matti Hamalainen <ccr@tnsp.org> parents: 11 diff changeset	406 {
21 1404dfcee7b8 More work on scenefile and model loading support. Matti Hamalainen <ccr@tnsp.org> parents: 20 diff changeset	407 printf("ERROR: Scenefile '%s' contains no models.\n",
1404dfcee7b8 More work on scenefile and model loading support. Matti Hamalainen <ccr@tnsp.org> parents: 20 diff changeset	408 optInputFilename.c_str());
12 52a586c344f4 Add option -m<filename prefix> to specify mesh/shader filename prefix. Matti Hamalainen <ccr@tnsp.org> parents: 11 diff changeset	409 goto exit;
52a586c344f4 Add option -m<filename prefix> to specify mesh/shader filename prefix. Matti Hamalainen <ccr@tnsp.org> parents: 11 diff changeset	410 }
52a586c344f4 Add option -m<filename prefix> to specify mesh/shader filename prefix. Matti Hamalainen <ccr@tnsp.org> parents: 11 diff changeset	411
21 1404dfcee7b8 More work on scenefile and model loading support. Matti Hamalainen <ccr@tnsp.org> parents: 20 diff changeset	412 printf("INFO: Loading %ld model(s) ..\n",
1404dfcee7b8 More work on scenefile and model loading support. Matti Hamalainen <ccr@tnsp.org> parents: 20 diff changeset	413 scene.models.size());
6 4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	414
21 1404dfcee7b8 More work on scenefile and model loading support. Matti Hamalainen <ccr@tnsp.org> parents: 20 diff changeset	415 basePath = dmGetPath(optInputFilename);
1404dfcee7b8 More work on scenefile and model loading support. Matti Hamalainen <ccr@tnsp.org> parents: 20 diff changeset	416 printf("INFO: Model base path '%s'\n", basePath.c_str());
1404dfcee7b8 More work on scenefile and model loading support. Matti Hamalainen <ccr@tnsp.org> parents: 20 diff changeset	417
1404dfcee7b8 More work on scenefile and model loading support. Matti Hamalainen <ccr@tnsp.org> parents: 20 diff changeset	418 for (DMModel &model : scene.models)
2 b45d8958e5a6 Cosmetic indentation. Matti Hamalainen <ccr@tnsp.org> parents: 0 diff changeset	419 {
21 1404dfcee7b8 More work on scenefile and model loading support. Matti Hamalainen <ccr@tnsp.org> parents: 20 diff changeset	420 if (!model.loadFromPLY(basePath + model.modelFile))
6 4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	421 goto exit;
21 1404dfcee7b8 More work on scenefile and model loading support. Matti Hamalainen <ccr@tnsp.org> parents: 20 diff changeset	422
1404dfcee7b8 More work on scenefile and model loading support. Matti Hamalainen <ccr@tnsp.org> parents: 20 diff changeset	423 if (optUseShaders)
1404dfcee7b8 More work on scenefile and model loading support. Matti Hamalainen <ccr@tnsp.org> parents: 20 diff changeset	424 {
1404dfcee7b8 More work on scenefile and model loading support. Matti Hamalainen <ccr@tnsp.org> parents: 20 diff changeset	425 std::string
1404dfcee7b8 More work on scenefile and model loading support. Matti Hamalainen <ccr@tnsp.org> parents: 20 diff changeset	426 fragFile = model.fragShaderFile.empty() ? "shader.frag" : basePath + model.fragShaderFile,
1404dfcee7b8 More work on scenefile and model loading support. Matti Hamalainen <ccr@tnsp.org> parents: 20 diff changeset	427 vertFile = model.vertShaderFile.empty() ? "shader.vert" : basePath + model.vertShaderFile;
1404dfcee7b8 More work on scenefile and model loading support. Matti Hamalainen <ccr@tnsp.org> parents: 20 diff changeset	428
1404dfcee7b8 More work on scenefile and model loading support. Matti Hamalainen <ccr@tnsp.org> parents: 20 diff changeset	429 if (!dmReadText(fragFile, model.fragShaderStr, SET_MAX_SHADER_SIZE) \|\|
1404dfcee7b8 More work on scenefile and model loading support. Matti Hamalainen <ccr@tnsp.org> parents: 20 diff changeset	430 !dmReadText(vertFile, model.vertShaderStr, SET_MAX_SHADER_SIZE))
1404dfcee7b8 More work on scenefile and model loading support. Matti Hamalainen <ccr@tnsp.org> parents: 20 diff changeset	431 goto exit;
1404dfcee7b8 More work on scenefile and model loading support. Matti Hamalainen <ccr@tnsp.org> parents: 20 diff changeset	432 }
6 4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	433 }
0 3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	434
6 4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	435 // Initialize SDL + OpenGL
21 1404dfcee7b8 More work on scenefile and model loading support. Matti Hamalainen <ccr@tnsp.org> parents: 20 diff changeset	436 if (!dmInitSDLGL(optWidth, optHeight, "GLDragon"))
6 4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	437 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	438
6 4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	439 // According to our mode ..
8 628c42e94149 Clean up variable names. Matti Hamalainen <ccr@tnsp.org> parents: 7 diff changeset	440 if (optUseShaders)
6 4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	441 {
21 1404dfcee7b8 More work on scenefile and model loading support. Matti Hamalainen <ccr@tnsp.org> parents: 20 diff changeset	442 for (DMModel &model : scene.models)
1404dfcee7b8 More work on scenefile and model loading support. Matti Hamalainen <ccr@tnsp.org> parents: 20 diff changeset	443 {
1404dfcee7b8 More work on scenefile and model loading support. Matti Hamalainen <ccr@tnsp.org> parents: 20 diff changeset	444 model.id_fs = dmCompileShader(GL_FRAGMENT_SHADER, model.fragShaderStr);
1404dfcee7b8 More work on scenefile and model loading support. Matti Hamalainen <ccr@tnsp.org> parents: 20 diff changeset	445 model.id_vs = dmCompileShader(GL_VERTEX_SHADER, model.vertShaderStr);
1404dfcee7b8 More work on scenefile and model loading support. Matti Hamalainen <ccr@tnsp.org> parents: 20 diff changeset	446 dmLinkModelShaders(model);
1404dfcee7b8 More work on scenefile and model loading support. Matti Hamalainen <ccr@tnsp.org> parents: 20 diff changeset	447 }
6 4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	448 }
4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	449 else
4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	450 {
4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	451 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	452
6 4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	453 glEnable(GL_COLOR_MATERIAL);
4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	454
4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	455 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	456 glMateriali(GL_FRONT, GL_SHININESS, 96);
4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	457 glMaterialfv(GL_FRONT, GL_SPECULAR, specReflection);
4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	458
4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	459 glEnable(GL_LIGHT0);
4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	460
4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	461 // Define the light components and position
20 294c4c7943b5 Cosmetic. Matti Hamalainen <ccr@tnsp.org> parents: 18 diff changeset	462 GLfloat ambient[] = { 0.2f, 0.2f, 0.2f, 1.0f };
294c4c7943b5 Cosmetic. Matti Hamalainen <ccr@tnsp.org> parents: 18 diff changeset	463 GLfloat diffuse[] = { 0.8f, 0.8f, 0.8f, 1.0f };
294c4c7943b5 Cosmetic. Matti Hamalainen <ccr@tnsp.org> parents: 18 diff changeset	464 GLfloat specular[] = { 0.5f, 0.5f, 0.5f, 1.0f };
294c4c7943b5 Cosmetic. Matti Hamalainen <ccr@tnsp.org> parents: 18 diff changeset	465 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	466
6 4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	467 // Define the light components and position
4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	468 glLightfv(GL_LIGHT0, GL_AMBIENT, ambient);
4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	469 glLightfv(GL_LIGHT0, GL_DIFFUSE, diffuse);
4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	470 glLightfv(GL_LIGHT0, GL_SPECULAR, specular);
4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	471 glLightfv(GL_LIGHT0, GL_POSITION, position);
4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	472 }
4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	473
4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	474 // Define the camera
4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	475 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	476
3 be31ff9e5f58 Port to libSDL2, clean up the code and some de-C++-ifications. Matti Hamalainen <ccr@tnsp.org> parents: 2 diff changeset	477
6 4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	478 // Main loop starts
13 c1e8057cc4d0 Improvements to option handling, add option for setting preferred vsync Matti Hamalainen <ccr@tnsp.org> parents: 12 diff changeset	479 startTime = cycleStart = SDL_GetTicks();
6 4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	480
4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	481 while (!exitFlag)
4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	482 {
4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	483 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	484
6 4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	485 // Check for quit events
4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	486 while (SDL_PollEvent(&event))
4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	487 switch (event.type)
4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	488 {
4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	489 case SDL_QUIT:
4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	490 exitFlag = true;
4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	491 break;
3 be31ff9e5f58 Port to libSDL2, clean up the code and some de-C++-ifications. Matti Hamalainen <ccr@tnsp.org> parents: 2 diff changeset	492
6 4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	493 case SDL_KEYDOWN:
4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	494 switch (event.key.keysym.sym)
4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	495 {
4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	496 case SDLK_ESCAPE:
4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	497 case SDLK_q:
4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	498 exitFlag = true;
4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	499 break;
4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	500 }
4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	501 }
3 be31ff9e5f58 Port to libSDL2, clean up the code and some de-C++-ifications. Matti Hamalainen <ccr@tnsp.org> parents: 2 diff changeset	502
6 4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	503 // Render the next frame
21 1404dfcee7b8 More work on scenefile and model loading support. Matti Hamalainen <ccr@tnsp.org> parents: 20 diff changeset	504 dmDrawScene(scene);
6 4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	505
4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	506 // Draw the current frame
8 628c42e94149 Clean up variable names. Matti Hamalainen <ccr@tnsp.org> parents: 7 diff changeset	507 SDL_GL_SwapWindow(dmWindow);
3 be31ff9e5f58 Port to libSDL2, clean up the code and some de-C++-ifications. Matti Hamalainen <ccr@tnsp.org> parents: 2 diff changeset	508
6 4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	509 // Rotate for 2 degrees
4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	510 glRotatef(2.0f, 0, 1, 0);
4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	511
4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	512 // Return true if a full rotation was done
15 2d2aadfa3df3 Fix calculation of totalFrames. Matti Hamalainen <ccr@tnsp.org> parents: 14 diff changeset	513 totalFrames++;
13 c1e8057cc4d0 Improvements to option handling, add option for setting preferred vsync Matti Hamalainen <ccr@tnsp.org> parents: 12 diff changeset	514 if (cycleFrames++ == SET_FRAMES)
6 4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	515 {
13 c1e8057cc4d0 Improvements to option handling, add option for setting preferred vsync Matti Hamalainen <ccr@tnsp.org> parents: 12 diff changeset	516 // Reset cycleFrames
c1e8057cc4d0 Improvements to option handling, add option for setting preferred vsync Matti Hamalainen <ccr@tnsp.org> parents: 12 diff changeset	517 cycleFrames = 0;
3 be31ff9e5f58 Port to libSDL2, clean up the code and some de-C++-ifications. Matti Hamalainen <ccr@tnsp.org> parents: 2 diff changeset	518
6 4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	519 // Get the time it took to render a full turn
13 c1e8057cc4d0 Improvements to option handling, add option for setting preferred vsync Matti Hamalainen <ccr@tnsp.org> parents: 12 diff changeset	520 int cycleEnd = SDL_GetTicks();
c1e8057cc4d0 Improvements to option handling, add option for setting preferred vsync Matti Hamalainen <ccr@tnsp.org> parents: 12 diff changeset	521 double cycleTime = cycleEnd - cycleStart;
10 c6c419861101 Use SDL_GetTicks() instead of std::clock(). Matti Hamalainen <ccr@tnsp.org> parents: 8 diff changeset	522
c6c419861101 Use SDL_GetTicks() instead of std::clock(). Matti Hamalainen <ccr@tnsp.org> parents: 8 diff changeset	523 // Restart the timer
13 c1e8057cc4d0 Improvements to option handling, add option for setting preferred vsync Matti Hamalainen <ccr@tnsp.org> parents: 12 diff changeset	524 cycleStart = SDL_GetTicks();
3 be31ff9e5f58 Port to libSDL2, clean up the code and some de-C++-ifications. Matti Hamalainen <ccr@tnsp.org> parents: 2 diff changeset	525
6 4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	526 // Print the current frames per second
4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	527 printf("%.1lf ms for %d frames = %.1lf FPS\n",
13 c1e8057cc4d0 Improvements to option handling, add option for setting preferred vsync Matti Hamalainen <ccr@tnsp.org> parents: 12 diff changeset	528 cycleTime, SET_FRAMES, (SET_FRAMES * 1000.0f) / cycleTime);
3 be31ff9e5f58 Port to libSDL2, clean up the code and some de-C++-ifications. Matti Hamalainen <ccr@tnsp.org> parents: 2 diff changeset	529 }
2 b45d8958e5a6 Cosmetic indentation. Matti Hamalainen <ccr@tnsp.org> parents: 0 diff changeset	530 }
6 4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	531
13 c1e8057cc4d0 Improvements to option handling, add option for setting preferred vsync Matti Hamalainen <ccr@tnsp.org> parents: 12 diff changeset	532 // Show totals
c1e8057cc4d0 Improvements to option handling, add option for setting preferred vsync Matti Hamalainen <ccr@tnsp.org> parents: 12 diff changeset	533 totalTime = SDL_GetTicks() - startTime;
c1e8057cc4d0 Improvements to option handling, add option for setting preferred vsync Matti Hamalainen <ccr@tnsp.org> parents: 12 diff changeset	534 printf("%.1lf ms total for %d total frames = %.2lf FPS average\n",
c1e8057cc4d0 Improvements to option handling, add option for setting preferred vsync Matti Hamalainen <ccr@tnsp.org> parents: 12 diff changeset	535 totalTime, totalFrames, (totalFrames * 1000.0f) / totalTime);
c1e8057cc4d0 Improvements to option handling, add option for setting preferred vsync Matti Hamalainen <ccr@tnsp.org> parents: 12 diff changeset	536
6 4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	537 exit:
8 628c42e94149 Clean up variable names. Matti Hamalainen <ccr@tnsp.org> parents: 7 diff changeset	538 if (dmGLContext != NULL)
628c42e94149 Clean up variable names. Matti Hamalainen <ccr@tnsp.org> parents: 7 diff changeset	539 SDL_GL_DeleteContext(dmGLContext);
5 5dcae4dddcd9 Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 3 diff changeset	540
8 628c42e94149 Clean up variable names. Matti Hamalainen <ccr@tnsp.org> parents: 7 diff changeset	541 if (dmWindow != NULL)
628c42e94149 Clean up variable names. Matti Hamalainen <ccr@tnsp.org> parents: 7 diff changeset	542 SDL_DestroyWindow(dmWindow);
6 4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	543
4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	544 SDL_Quit();
4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	545
4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	546 return 0;
0 3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	547 }

Mercurial > hg > forks > gldragon

annotate glxdragon.cpp @ 21:1404dfcee7b8