forks/gldragon: gldragon.cpp annotate

annotate gldragon.cpp @ 31:6847715b46cd

Move piece of code a bit as a cleanup.

author	Matti Hamalainen <ccr@tnsp.org>
date	Fri, 22 Nov 2019 19:53:55 +0200
parents	097184bd34a8
children	1215fdd0a8ab

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 //
22 03b86b9c2f29 Add copyright blurbs and licenses. Matti Hamalainen <ccr@tnsp.org> parents: 21 diff changeset	2 // GLDragon - OpenGL PLY model viewer / simple benchmark
03b86b9c2f29 Add copyright blurbs and licenses. Matti Hamalainen <ccr@tnsp.org> parents: 21 diff changeset	3 // Programmed and designed by Matti 'ccr' Hämäläinen <ccr@tnsp.org>
3 be31ff9e5f58 Port to libSDL2, clean up the code and some de-C++-ifications. Matti Hamalainen <ccr@tnsp.org> parents: 2 diff changeset	4 // (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	5 //
22 03b86b9c2f29 Add copyright blurbs and licenses. Matti Hamalainen <ccr@tnsp.org> parents: 21 diff changeset	6 // See file "COPYING" for license information.
0 3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	7 //
22 03b86b9c2f29 Add copyright blurbs and licenses. Matti Hamalainen <ccr@tnsp.org> parents: 21 diff changeset	8 // Originally based on 'glxdragon' Copyright (c) 2009, Thomas Trummer
3 be31ff9e5f58 Port to libSDL2, clean up the code and some de-C++-ifications. Matti Hamalainen <ccr@tnsp.org> parents: 2 diff changeset	9 //
0 3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	10 #include <SDL.h>
3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	11 #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	12 #include <GL/glu.h>
6 4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	13 #include <GL/glext.h>
0 3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	14
21 1404dfcee7b8 More work on scenefile and model loading support. Matti Hamalainen <ccr@tnsp.org> parents: 20 diff changeset	15 #include "dmutil.h"
1404dfcee7b8 More work on scenefile and model loading support. Matti Hamalainen <ccr@tnsp.org> parents: 20 diff changeset	16 #include "dmmodel.h"
0 3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	17
16 c134a186912f Cosmetics. Matti Hamalainen <ccr@tnsp.org> parents: 15 diff changeset	18
11 89dc8caeff41 Improve option handling a bit. Matti Hamalainen <ccr@tnsp.org> parents: 10 diff changeset	19 /* Default settings etc. constants
89dc8caeff41 Improve option handling a bit. Matti Hamalainen <ccr@tnsp.org> parents: 10 diff changeset	20 */
18 b1e75c65016d Check for "too large" shader files. Matti Hamalainen <ccr@tnsp.org> parents: 17 diff changeset	21 #define SET_DEF_WIDTH 1280
b1e75c65016d Check for "too large" shader files. Matti Hamalainen <ccr@tnsp.org> parents: 17 diff changeset	22 #define SET_DEF_HEIGHT 960
b1e75c65016d Check for "too large" shader files. Matti Hamalainen <ccr@tnsp.org> parents: 17 diff changeset	23 #define SET_FRAMES (180)
b1e75c65016d Check for "too large" shader files. Matti Hamalainen <ccr@tnsp.org> parents: 17 diff changeset	24 #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	25
be31ff9e5f58 Port to libSDL2, clean up the code and some de-C++-ifications. Matti Hamalainen <ccr@tnsp.org> parents: 2 diff changeset	26
11 89dc8caeff41 Improve option handling a bit. Matti Hamalainen <ccr@tnsp.org> parents: 10 diff changeset	27 /* Options
89dc8caeff41 Improve option handling a bit. Matti Hamalainen <ccr@tnsp.org> parents: 10 diff changeset	28 */
89dc8caeff41 Improve option handling a bit. Matti Hamalainen <ccr@tnsp.org> parents: 10 diff changeset	29 bool optUseShaders = false;
89dc8caeff41 Improve option handling a bit. Matti Hamalainen <ccr@tnsp.org> parents: 10 diff changeset	30 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	31 optHeight = SET_DEF_HEIGHT,
c1e8057cc4d0 Improvements to option handling, add option for setting preferred vsync Matti Hamalainen <ccr@tnsp.org> parents: 12 diff changeset	32 optVSyncMode = 1;
c1e8057cc4d0 Improvements to option handling, add option for setting preferred vsync Matti Hamalainen <ccr@tnsp.org> parents: 12 diff changeset	33
11 89dc8caeff41 Improve option handling a bit. Matti Hamalainen <ccr@tnsp.org> parents: 10 diff changeset	34
89dc8caeff41 Improve option handling a bit. Matti Hamalainen <ccr@tnsp.org> parents: 10 diff changeset	35
89dc8caeff41 Improve option handling a bit. Matti Hamalainen <ccr@tnsp.org> parents: 10 diff changeset	36 /* Globals
89dc8caeff41 Improve option handling a bit. Matti Hamalainen <ccr@tnsp.org> parents: 10 diff changeset	37 */
89dc8caeff41 Improve option handling a bit. Matti Hamalainen <ccr@tnsp.org> parents: 10 diff changeset	38 SDL_Window *dmWindow = NULL;
89dc8caeff41 Improve option handling a bit. Matti Hamalainen <ccr@tnsp.org> parents: 10 diff changeset	39 SDL_GLContext dmGLContext = NULL;
89dc8caeff41 Improve option handling a bit. Matti Hamalainen <ccr@tnsp.org> parents: 10 diff changeset	40
89dc8caeff41 Improve option handling a bit. Matti Hamalainen <ccr@tnsp.org> parents: 10 diff changeset	41
21 1404dfcee7b8 More work on scenefile and model loading support. Matti Hamalainen <ccr@tnsp.org> parents: 20 diff changeset	42 /* Helpers
1404dfcee7b8 More work on scenefile and model loading support. Matti Hamalainen <ccr@tnsp.org> parents: 20 diff changeset	43 */
5 5dcae4dddcd9 Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 3 diff changeset	44 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	45 {
13 c1e8057cc4d0 Improvements to option handling, add option for setting preferred vsync Matti Hamalainen <ccr@tnsp.org> parents: 12 diff changeset	46 int ret;
c1e8057cc4d0 Improvements to option handling, add option for setting preferred vsync Matti Hamalainen <ccr@tnsp.org> parents: 12 diff changeset	47 std::string msg;
c1e8057cc4d0 Improvements to option handling, add option for setting preferred vsync Matti Hamalainen <ccr@tnsp.org> parents: 12 diff changeset	48
6 4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	49 // Set GL attributes
4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	50 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	51 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	52 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	53
2 b45d8958e5a6 Cosmetic indentation. Matti Hamalainen <ccr@tnsp.org> parents: 0 diff changeset	54 SDL_GL_SetAttribute(SDL_GL_DEPTH_SIZE, 24);
b45d8958e5a6 Cosmetic indentation. Matti Hamalainen <ccr@tnsp.org> parents: 0 diff changeset	55 SDL_GL_SetAttribute(SDL_GL_DOUBLEBUFFER, 1);
0 3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	56
6 4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	57 // 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	58 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	59 {
be31ff9e5f58 Port to libSDL2, clean up the code and some de-C++-ifications. Matti Hamalainen <ccr@tnsp.org> parents: 2 diff changeset	60 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	61 SDL_GetError());
be31ff9e5f58 Port to libSDL2, clean up the code and some de-C++-ifications. Matti Hamalainen <ccr@tnsp.org> parents: 2 diff changeset	62 return false;
be31ff9e5f58 Port to libSDL2, clean up the code and some de-C++-ifications. Matti Hamalainen <ccr@tnsp.org> parents: 2 diff changeset	63 }
0 3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	64
6 4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	65 // Attempt to create a window
8 628c42e94149 Clean up variable names. Matti Hamalainen <ccr@tnsp.org> parents: 7 diff changeset	66 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	67 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	68 width, height,
be31ff9e5f58 Port to libSDL2, clean up the code and some de-C++-ifications. Matti Hamalainen <ccr@tnsp.org> parents: 2 diff changeset	69 SDL_WINDOW_OPENGL \| SDL_WINDOW_SHOWN \| SDL_WINDOW_RESIZABLE)) == NULL)
2 b45d8958e5a6 Cosmetic indentation. Matti Hamalainen <ccr@tnsp.org> parents: 0 diff changeset	70 {
3 be31ff9e5f58 Port to libSDL2, clean up the code and some de-C++-ifications. Matti Hamalainen <ccr@tnsp.org> parents: 2 diff changeset	71 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	72 SDL_GetError());
be31ff9e5f58 Port to libSDL2, clean up the code and some de-C++-ifications. Matti Hamalainen <ccr@tnsp.org> parents: 2 diff changeset	73 return false;
2 b45d8958e5a6 Cosmetic indentation. Matti Hamalainen <ccr@tnsp.org> parents: 0 diff changeset	74 }
0 3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	75
8 628c42e94149 Clean up variable names. Matti Hamalainen <ccr@tnsp.org> parents: 7 diff changeset	76 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	77 {
be31ff9e5f58 Port to libSDL2, clean up the code and some de-C++-ifications. Matti Hamalainen <ccr@tnsp.org> parents: 2 diff changeset	78 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	79 SDL_GetError());
be31ff9e5f58 Port to libSDL2, clean up the code and some de-C++-ifications. Matti Hamalainen <ccr@tnsp.org> parents: 2 diff changeset	80 return false;
be31ff9e5f58 Port to libSDL2, clean up the code and some de-C++-ifications. Matti Hamalainen <ccr@tnsp.org> parents: 2 diff changeset	81 }
0 3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	82
13 c1e8057cc4d0 Improvements to option handling, add option for setting preferred vsync Matti Hamalainen <ccr@tnsp.org> parents: 12 diff changeset	83 // 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	84 switch (optVSyncMode)
c1e8057cc4d0 Improvements to option handling, add option for setting preferred vsync Matti Hamalainen <ccr@tnsp.org> parents: 12 diff changeset	85 {
c1e8057cc4d0 Improvements to option handling, add option for setting preferred vsync Matti Hamalainen <ccr@tnsp.org> parents: 12 diff changeset	86 case 3:
c1e8057cc4d0 Improvements to option handling, add option for setting preferred vsync Matti Hamalainen <ccr@tnsp.org> parents: 12 diff changeset	87 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	88 msg = "adaptive vsync";
c1e8057cc4d0 Improvements to option handling, add option for setting preferred vsync Matti Hamalainen <ccr@tnsp.org> parents: 12 diff changeset	89 break;
c1e8057cc4d0 Improvements to option handling, add option for setting preferred vsync Matti Hamalainen <ccr@tnsp.org> parents: 12 diff changeset	90
c1e8057cc4d0 Improvements to option handling, add option for setting preferred vsync Matti Hamalainen <ccr@tnsp.org> parents: 12 diff changeset	91 case 2:
c1e8057cc4d0 Improvements to option handling, add option for setting preferred vsync Matti Hamalainen <ccr@tnsp.org> parents: 12 diff changeset	92 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	93 msg = "synchronized (vsync)";
c1e8057cc4d0 Improvements to option handling, add option for setting preferred vsync Matti Hamalainen <ccr@tnsp.org> parents: 12 diff changeset	94 break;
c1e8057cc4d0 Improvements to option handling, add option for setting preferred vsync Matti Hamalainen <ccr@tnsp.org> parents: 12 diff changeset	95
c1e8057cc4d0 Improvements to option handling, add option for setting preferred vsync Matti Hamalainen <ccr@tnsp.org> parents: 12 diff changeset	96 case 1:
c1e8057cc4d0 Improvements to option handling, add option for setting preferred vsync Matti Hamalainen <ccr@tnsp.org> parents: 12 diff changeset	97 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	98 msg = "immediate (no vsync)";
c1e8057cc4d0 Improvements to option handling, add option for setting preferred vsync Matti Hamalainen <ccr@tnsp.org> parents: 12 diff changeset	99 break;
c1e8057cc4d0 Improvements to option handling, add option for setting preferred vsync Matti Hamalainen <ccr@tnsp.org> parents: 12 diff changeset	100
c1e8057cc4d0 Improvements to option handling, add option for setting preferred vsync Matti Hamalainen <ccr@tnsp.org> parents: 12 diff changeset	101 default:
c1e8057cc4d0 Improvements to option handling, add option for setting preferred vsync Matti Hamalainen <ccr@tnsp.org> parents: 12 diff changeset	102 ret = -1;
c1e8057cc4d0 Improvements to option handling, add option for setting preferred vsync Matti Hamalainen <ccr@tnsp.org> parents: 12 diff changeset	103 msg = "INVALID VSYNC MODE";
c1e8057cc4d0 Improvements to option handling, add option for setting preferred vsync Matti Hamalainen <ccr@tnsp.org> parents: 12 diff changeset	104 break;
c1e8057cc4d0 Improvements to option handling, add option for setting preferred vsync Matti Hamalainen <ccr@tnsp.org> parents: 12 diff changeset	105 }
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 if (ret != 0)
c1e8057cc4d0 Improvements to option handling, add option for setting preferred vsync Matti Hamalainen <ccr@tnsp.org> parents: 12 diff changeset	108 {
c1e8057cc4d0 Improvements to option handling, add option for setting preferred vsync Matti Hamalainen <ccr@tnsp.org> parents: 12 diff changeset	109 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	110 msg.c_str());
c1e8057cc4d0 Improvements to option handling, add option for setting preferred vsync Matti Hamalainen <ccr@tnsp.org> parents: 12 diff changeset	111 return false;
c1e8057cc4d0 Improvements to option handling, add option for setting preferred vsync Matti Hamalainen <ccr@tnsp.org> parents: 12 diff changeset	112 }
c1e8057cc4d0 Improvements to option handling, add option for setting preferred vsync Matti Hamalainen <ccr@tnsp.org> parents: 12 diff changeset	113
6 4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	114 // 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	115 printf(
be31ff9e5f58 Port to libSDL2, clean up the code and some de-C++-ifications. Matti Hamalainen <ccr@tnsp.org> parents: 2 diff changeset	116 "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	117 "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	118 "GL_VERSION : %s\n"
c1e8057cc4d0 Improvements to option handling, add option for setting preferred vsync Matti Hamalainen <ccr@tnsp.org> parents: 12 diff changeset	119 "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	120 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	121 glGetString(GL_RENDERER),
13 c1e8057cc4d0 Improvements to option handling, add option for setting preferred vsync Matti Hamalainen <ccr@tnsp.org> parents: 12 diff changeset	122 glGetString(GL_VERSION),
c1e8057cc4d0 Improvements to option handling, add option for setting preferred vsync Matti Hamalainen <ccr@tnsp.org> parents: 12 diff changeset	123 msg.c_str());
0 3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	124
2 b45d8958e5a6 Cosmetic indentation. Matti Hamalainen <ccr@tnsp.org> parents: 0 diff changeset	125 // 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	126 glViewport(0, 0, width, height);
0 3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	127
3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	128 glMatrixMode(GL_PROJECTION);
3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	129 glLoadIdentity();
3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	130
3 be31ff9e5f58 Port to libSDL2, clean up the code and some de-C++-ifications. Matti Hamalainen <ccr@tnsp.org> parents: 2 diff changeset	131 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	132
3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	133 glMatrixMode(GL_MODELVIEW);
3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	134 glLoadIdentity();
3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	135
2 b45d8958e5a6 Cosmetic indentation. Matti Hamalainen <ccr@tnsp.org> parents: 0 diff changeset	136 // Enable back face culling
b45d8958e5a6 Cosmetic indentation. Matti Hamalainen <ccr@tnsp.org> parents: 0 diff changeset	137 glEnable(GL_CULL_FACE);
0 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 // Enable smooth shading
3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	140 glShadeModel(GL_SMOOTH);
3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	141
3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	142 // Enable the depth buffer
3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	143 glEnable(GL_DEPTH_TEST);
3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	144
21 1404dfcee7b8 More work on scenefile and model loading support. Matti Hamalainen <ccr@tnsp.org> parents: 20 diff changeset	145 // Enable normal rescaling
1404dfcee7b8 More work on scenefile and model loading support. Matti Hamalainen <ccr@tnsp.org> parents: 20 diff changeset	146 glEnable(GL_RESCALE_NORMAL);
1404dfcee7b8 More work on scenefile and model loading support. Matti Hamalainen <ccr@tnsp.org> parents: 20 diff changeset	147
0 3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	148 // Setup depth buffer
3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	149 glClearDepth(1.0f);
3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	150
3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	151 // Set the depth buffer function
3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	152 glDepthFunc(GL_LEQUAL);
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 // Enable vertex and and normal arrays
3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	155 glEnableClientState(GL_VERTEX_ARRAY);
3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	156 glEnableClientState(GL_NORMAL_ARRAY);
3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	157
3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	158 // Set correct perspective correction
3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	159 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	160
be31ff9e5f58 Port to libSDL2, clean up the code and some de-C++-ifications. Matti Hamalainen <ccr@tnsp.org> parents: 2 diff changeset	161 return true;
0 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
3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	164
21 1404dfcee7b8 More work on scenefile and model loading support. Matti Hamalainen <ccr@tnsp.org> parents: 20 diff changeset	165 void dmDrawModel(const DMModel &model)
0 3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	166 {
3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	167 int maxIndices;
3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	168
17 0fa9302e324d Cleanup. Matti Hamalainen <ccr@tnsp.org> parents: 16 diff changeset	169 // Render the model
2 b45d8958e5a6 Cosmetic indentation. Matti Hamalainen <ccr@tnsp.org> parents: 0 diff changeset	170 glGetIntegerv(GL_MAX_ELEMENTS_INDICES, &maxIndices);
0 3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	171
21 1404dfcee7b8 More work on scenefile and model loading support. Matti Hamalainen <ccr@tnsp.org> parents: 20 diff changeset	172 // Add transforms
1404dfcee7b8 More work on scenefile and model loading support. Matti Hamalainen <ccr@tnsp.org> parents: 20 diff changeset	173 glScalef(model.scale.x, model.scale.y, model.scale.z);
25 2403030a0352 "Finish" implementing multiple lights support in scene files. Matti Hamalainen <ccr@tnsp.org> parents: 24 diff changeset	174 glTranslatef(model.translate.x, model.translate.y, model.translate.z);
21 1404dfcee7b8 More work on scenefile and model loading support. Matti Hamalainen <ccr@tnsp.org> parents: 20 diff changeset	175 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	176 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	177 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	178
21 1404dfcee7b8 More work on scenefile and model loading support. Matti Hamalainen <ccr@tnsp.org> parents: 20 diff changeset	179 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	180 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	181
1404dfcee7b8 More work on scenefile and model loading support. Matti Hamalainen <ccr@tnsp.org> parents: 20 diff changeset	182 for (int n = 0; n < model.nfaces; n += maxIndices)
2 b45d8958e5a6 Cosmetic indentation. Matti Hamalainen <ccr@tnsp.org> parents: 0 diff changeset	183 {
21 1404dfcee7b8 More work on scenefile and model loading support. Matti Hamalainen <ccr@tnsp.org> parents: 20 diff changeset	184 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	185 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	186 }
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
3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	189
21 1404dfcee7b8 More work on scenefile and model loading support. Matti Hamalainen <ccr@tnsp.org> parents: 20 diff changeset	190 void dmDrawScene(const DMSimpleScene &scene)
0 3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	191 {
3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	192 glClear(GL_DEPTH_BUFFER_BIT);
3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	193
2 b45d8958e5a6 Cosmetic indentation. Matti Hamalainen <ccr@tnsp.org> parents: 0 diff changeset	194 glMatrixMode(GL_PROJECTION);
b45d8958e5a6 Cosmetic indentation. Matti Hamalainen <ccr@tnsp.org> parents: 0 diff changeset	195 glPushMatrix();
b45d8958e5a6 Cosmetic indentation. Matti Hamalainen <ccr@tnsp.org> parents: 0 diff changeset	196 glLoadIdentity();
0 3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	197
2 b45d8958e5a6 Cosmetic indentation. Matti Hamalainen <ccr@tnsp.org> parents: 0 diff changeset	198 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	199
2 b45d8958e5a6 Cosmetic indentation. Matti Hamalainen <ccr@tnsp.org> parents: 0 diff changeset	200 glMatrixMode(GL_MODELVIEW);
b45d8958e5a6 Cosmetic indentation. Matti Hamalainen <ccr@tnsp.org> parents: 0 diff changeset	201 glPushMatrix();
b45d8958e5a6 Cosmetic indentation. Matti Hamalainen <ccr@tnsp.org> parents: 0 diff changeset	202 glLoadIdentity();
0 3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	203
17 0fa9302e324d Cleanup. Matti Hamalainen <ccr@tnsp.org> parents: 16 diff changeset	204 // Draw the background gradient
0 3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	205 glDisable(GL_DEPTH_TEST);
3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	206 glDisable(GL_LIGHTING);
2 b45d8958e5a6 Cosmetic indentation. Matti Hamalainen <ccr@tnsp.org> parents: 0 diff changeset	207 glBegin(GL_QUADS);
b45d8958e5a6 Cosmetic indentation. Matti Hamalainen <ccr@tnsp.org> parents: 0 diff changeset	208 {
b45d8958e5a6 Cosmetic indentation. Matti Hamalainen <ccr@tnsp.org> parents: 0 diff changeset	209 glColor3ub(0x3B, 0x3B, 0x75);
b45d8958e5a6 Cosmetic indentation. Matti Hamalainen <ccr@tnsp.org> parents: 0 diff changeset	210 glVertex2f(0.0f, 0.0f);
b45d8958e5a6 Cosmetic indentation. Matti Hamalainen <ccr@tnsp.org> parents: 0 diff changeset	211 glVertex2f(1.0f, 0.0f);
0 3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	212
2 b45d8958e5a6 Cosmetic indentation. Matti Hamalainen <ccr@tnsp.org> parents: 0 diff changeset	213 glColor3ub(0x00, 0x00, 0x00);
b45d8958e5a6 Cosmetic indentation. Matti Hamalainen <ccr@tnsp.org> parents: 0 diff changeset	214 glVertex2f(1.0f, 1.0f);
b45d8958e5a6 Cosmetic indentation. Matti Hamalainen <ccr@tnsp.org> parents: 0 diff changeset	215 glVertex2f(0.0f, 1.0f);
b45d8958e5a6 Cosmetic indentation. Matti Hamalainen <ccr@tnsp.org> parents: 0 diff changeset	216 }
b45d8958e5a6 Cosmetic indentation. Matti Hamalainen <ccr@tnsp.org> parents: 0 diff changeset	217 glEnd();
0 3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	218
3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	219
2 b45d8958e5a6 Cosmetic indentation. Matti Hamalainen <ccr@tnsp.org> parents: 0 diff changeset	220 // Restore the 3D projection
b45d8958e5a6 Cosmetic indentation. Matti Hamalainen <ccr@tnsp.org> parents: 0 diff changeset	221 glMatrixMode(GL_PROJECTION);
b45d8958e5a6 Cosmetic indentation. Matti Hamalainen <ccr@tnsp.org> parents: 0 diff changeset	222 glPopMatrix();
0 3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	223
2 b45d8958e5a6 Cosmetic indentation. Matti Hamalainen <ccr@tnsp.org> parents: 0 diff changeset	224 glMatrixMode(GL_MODELVIEW);
b45d8958e5a6 Cosmetic indentation. Matti Hamalainen <ccr@tnsp.org> parents: 0 diff changeset	225 glPopMatrix();
0 3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	226
3 be31ff9e5f58 Port to libSDL2, clean up the code and some de-C++-ifications. Matti Hamalainen <ccr@tnsp.org> parents: 2 diff changeset	227 glEnable(GL_DEPTH_TEST);
0 3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	228
21 1404dfcee7b8 More work on scenefile and model loading support. Matti Hamalainen <ccr@tnsp.org> parents: 20 diff changeset	229 // Draw models
1404dfcee7b8 More work on scenefile and model loading support. Matti Hamalainen <ccr@tnsp.org> parents: 20 diff changeset	230 for (const DMModel &model : scene.models)
27 097184bd34a8 Implement number of lights uniform for the shaders, clean up light setup and Matti Hamalainen <ccr@tnsp.org> parents: 26 diff changeset	231 {
097184bd34a8 Implement number of lights uniform for the shaders, clean up light setup and Matti Hamalainen <ccr@tnsp.org> parents: 26 diff changeset	232 if (optUseShaders)
097184bd34a8 Implement number of lights uniform for the shaders, clean up light setup and Matti Hamalainen <ccr@tnsp.org> parents: 26 diff changeset	233 {
097184bd34a8 Implement number of lights uniform for the shaders, clean up light setup and Matti Hamalainen <ccr@tnsp.org> parents: 26 diff changeset	234 // Enable shader program
097184bd34a8 Implement number of lights uniform for the shaders, clean up light setup and Matti Hamalainen <ccr@tnsp.org> parents: 26 diff changeset	235 glUseProgram(model.id_prog);
097184bd34a8 Implement number of lights uniform for the shaders, clean up light setup and Matti Hamalainen <ccr@tnsp.org> parents: 26 diff changeset	236 glUniform1i(glGetUniformLocation(model.id_prog, "nlights"), scene.lights.size());
097184bd34a8 Implement number of lights uniform for the shaders, clean up light setup and Matti Hamalainen <ccr@tnsp.org> parents: 26 diff changeset	237 }
097184bd34a8 Implement number of lights uniform for the shaders, clean up light setup and Matti Hamalainen <ccr@tnsp.org> parents: 26 diff changeset	238 else
097184bd34a8 Implement number of lights uniform for the shaders, clean up light setup and Matti Hamalainen <ccr@tnsp.org> parents: 26 diff changeset	239 {
097184bd34a8 Implement number of lights uniform for the shaders, clean up light setup and Matti Hamalainen <ccr@tnsp.org> parents: 26 diff changeset	240 // Set the color of the model
097184bd34a8 Implement number of lights uniform for the shaders, clean up light setup and Matti Hamalainen <ccr@tnsp.org> parents: 26 diff changeset	241 glEnable(GL_LIGHTING);
097184bd34a8 Implement number of lights uniform for the shaders, clean up light setup and Matti Hamalainen <ccr@tnsp.org> parents: 26 diff changeset	242 glColor3ub(0x90, 0x80, 0x90);
097184bd34a8 Implement number of lights uniform for the shaders, clean up light setup and Matti Hamalainen <ccr@tnsp.org> parents: 26 diff changeset	243 }
097184bd34a8 Implement number of lights uniform for the shaders, clean up light setup and Matti Hamalainen <ccr@tnsp.org> parents: 26 diff changeset	244
097184bd34a8 Implement number of lights uniform for the shaders, clean up light setup and Matti Hamalainen <ccr@tnsp.org> parents: 26 diff changeset	245 glPushMatrix();
21 1404dfcee7b8 More work on scenefile and model loading support. Matti Hamalainen <ccr@tnsp.org> parents: 20 diff changeset	246 dmDrawModel(model);
27 097184bd34a8 Implement number of lights uniform for the shaders, clean up light setup and Matti Hamalainen <ccr@tnsp.org> parents: 26 diff changeset	247 glPopMatrix();
097184bd34a8 Implement number of lights uniform for the shaders, clean up light setup and Matti Hamalainen <ccr@tnsp.org> parents: 26 diff changeset	248
097184bd34a8 Implement number of lights uniform for the shaders, clean up light setup and Matti Hamalainen <ccr@tnsp.org> parents: 26 diff changeset	249 // Restore
097184bd34a8 Implement number of lights uniform for the shaders, clean up light setup and Matti Hamalainen <ccr@tnsp.org> parents: 26 diff changeset	250 if (optUseShaders)
097184bd34a8 Implement number of lights uniform for the shaders, clean up light setup and Matti Hamalainen <ccr@tnsp.org> parents: 26 diff changeset	251 {
097184bd34a8 Implement number of lights uniform for the shaders, clean up light setup and Matti Hamalainen <ccr@tnsp.org> parents: 26 diff changeset	252 glUseProgram(0);
097184bd34a8 Implement number of lights uniform for the shaders, clean up light setup and Matti Hamalainen <ccr@tnsp.org> parents: 26 diff changeset	253 }
097184bd34a8 Implement number of lights uniform for the shaders, clean up light setup and Matti Hamalainen <ccr@tnsp.org> parents: 26 diff changeset	254 }
6 4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	255 }
4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	256
4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	257
24 c1897cfc8463 Add shader compilation error handling. Matti Hamalainen <ccr@tnsp.org> parents: 23 diff changeset	258 bool dmCompileShader(const GLenum stype, const std::string &src, GLuint &shader)
6 4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	259 {
24 c1897cfc8463 Add shader compilation error handling. Matti Hamalainen <ccr@tnsp.org> parents: 23 diff changeset	260 GLint status;
6 4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	261 const char *tmp = src.c_str();
4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	262
24 c1897cfc8463 Add shader compilation error handling. Matti Hamalainen <ccr@tnsp.org> parents: 23 diff changeset	263 shader = glCreateShader(stype);
6 4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	264 glShaderSource(shader, 1, &tmp, 0);
4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	265 glCompileShader(shader);
4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	266
24 c1897cfc8463 Add shader compilation error handling. Matti Hamalainen <ccr@tnsp.org> parents: 23 diff changeset	267 glGetShaderiv(shader, GL_COMPILE_STATUS, &status);
c1897cfc8463 Add shader compilation error handling. Matti Hamalainen <ccr@tnsp.org> parents: 23 diff changeset	268 if (status == GL_TRUE)
c1897cfc8463 Add shader compilation error handling. Matti Hamalainen <ccr@tnsp.org> parents: 23 diff changeset	269 return true;
c1897cfc8463 Add shader compilation error handling. Matti Hamalainen <ccr@tnsp.org> parents: 23 diff changeset	270 else
c1897cfc8463 Add shader compilation error handling. Matti Hamalainen <ccr@tnsp.org> parents: 23 diff changeset	271 {
26 67647ed860f0 Improve shader compilation error reporting. Matti Hamalainen <ccr@tnsp.org> parents: 25 diff changeset	272 GLint bufLen = 0;
67647ed860f0 Improve shader compilation error reporting. Matti Hamalainen <ccr@tnsp.org> parents: 25 diff changeset	273 glGetShaderiv(shader, GL_INFO_LOG_LENGTH, &bufLen);
67647ed860f0 Improve shader compilation error reporting. Matti Hamalainen <ccr@tnsp.org> parents: 25 diff changeset	274
67647ed860f0 Improve shader compilation error reporting. Matti Hamalainen <ccr@tnsp.org> parents: 25 diff changeset	275 if (bufLen > 0)
67647ed860f0 Improve shader compilation error reporting. Matti Hamalainen <ccr@tnsp.org> parents: 25 diff changeset	276 {
67647ed860f0 Improve shader compilation error reporting. Matti Hamalainen <ccr@tnsp.org> parents: 25 diff changeset	277 char *buf = new char[bufLen];
67647ed860f0 Improve shader compilation error reporting. Matti Hamalainen <ccr@tnsp.org> parents: 25 diff changeset	278 glGetShaderInfoLog(shader, bufLen, NULL, buf);
67647ed860f0 Improve shader compilation error reporting. Matti Hamalainen <ccr@tnsp.org> parents: 25 diff changeset	279 printf("ERROR: Shader compliation error:\n%s\n",
67647ed860f0 Improve shader compilation error reporting. Matti Hamalainen <ccr@tnsp.org> parents: 25 diff changeset	280 buf);
67647ed860f0 Improve shader compilation error reporting. Matti Hamalainen <ccr@tnsp.org> parents: 25 diff changeset	281 delete buf;
67647ed860f0 Improve shader compilation error reporting. Matti Hamalainen <ccr@tnsp.org> parents: 25 diff changeset	282 }
67647ed860f0 Improve shader compilation error reporting. Matti Hamalainen <ccr@tnsp.org> parents: 25 diff changeset	283 else
67647ed860f0 Improve shader compilation error reporting. Matti Hamalainen <ccr@tnsp.org> parents: 25 diff changeset	284 {
67647ed860f0 Improve shader compilation error reporting. Matti Hamalainen <ccr@tnsp.org> parents: 25 diff changeset	285 printf("ERROR: Shader compilation error occured, but no error information got.\n");
67647ed860f0 Improve shader compilation error reporting. Matti Hamalainen <ccr@tnsp.org> parents: 25 diff changeset	286 }
24 c1897cfc8463 Add shader compilation error handling. Matti Hamalainen <ccr@tnsp.org> parents: 23 diff changeset	287 return false;
c1897cfc8463 Add shader compilation error handling. Matti Hamalainen <ccr@tnsp.org> parents: 23 diff changeset	288 }
6 4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	289 }
4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	290
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 void dmLinkModelShaders(DMModel &model)
6 4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	293 {
21 1404dfcee7b8 More work on scenefile and model loading support. Matti Hamalainen <ccr@tnsp.org> parents: 20 diff changeset	294 model.id_prog = glCreateProgram();
1404dfcee7b8 More work on scenefile and model loading support. Matti Hamalainen <ccr@tnsp.org> parents: 20 diff changeset	295 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	296 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	297 glLinkProgram(model.id_prog);
0 3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	298 }
3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	299
3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	300
25 2403030a0352 "Finish" implementing multiple lights support in scene files. Matti Hamalainen <ccr@tnsp.org> parents: 24 diff changeset	301 void dmSetupLight(const int n, const DMLight &light)
2403030a0352 "Finish" implementing multiple lights support in scene files. Matti Hamalainen <ccr@tnsp.org> parents: 24 diff changeset	302 {
2403030a0352 "Finish" implementing multiple lights support in scene files. Matti Hamalainen <ccr@tnsp.org> parents: 24 diff changeset	303 glEnable(GL_LIGHT0 + n);
2403030a0352 "Finish" implementing multiple lights support in scene files. Matti Hamalainen <ccr@tnsp.org> parents: 24 diff changeset	304 glLightfv(GL_LIGHT0 + n, GL_AMBIENT, light.ambient.values);
2403030a0352 "Finish" implementing multiple lights support in scene files. Matti Hamalainen <ccr@tnsp.org> parents: 24 diff changeset	305 glLightfv(GL_LIGHT0 + n, GL_DIFFUSE, light.diffuse.values);
2403030a0352 "Finish" implementing multiple lights support in scene files. Matti Hamalainen <ccr@tnsp.org> parents: 24 diff changeset	306 glLightfv(GL_LIGHT0 + n, GL_SPECULAR, light.specular.values);
2403030a0352 "Finish" implementing multiple lights support in scene files. Matti Hamalainen <ccr@tnsp.org> parents: 24 diff changeset	307 glLightfv(GL_LIGHT0 + n, GL_POSITION, light.position.values);
2403030a0352 "Finish" implementing multiple lights support in scene files. Matti Hamalainen <ccr@tnsp.org> parents: 24 diff changeset	308 }
2403030a0352 "Finish" implementing multiple lights support in scene files. Matti Hamalainen <ccr@tnsp.org> parents: 24 diff changeset	309
2403030a0352 "Finish" implementing multiple lights support in scene files. Matti Hamalainen <ccr@tnsp.org> parents: 24 diff changeset	310
6 4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	311 int main(int argc, char *argv[])
0 3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	312 {
13 c1e8057cc4d0 Improvements to option handling, add option for setting preferred vsync Matti Hamalainen <ccr@tnsp.org> parents: 12 diff changeset	313 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	314 double totalTime;
21 1404dfcee7b8 More work on scenefile and model loading support. Matti Hamalainen <ccr@tnsp.org> parents: 20 diff changeset	315 bool
1404dfcee7b8 More work on scenefile and model loading support. Matti Hamalainen <ccr@tnsp.org> parents: 20 diff changeset	316 exitFlag = false,
1404dfcee7b8 More work on scenefile and model loading support. Matti Hamalainen <ccr@tnsp.org> parents: 20 diff changeset	317 optShowHelp = false,
1404dfcee7b8 More work on scenefile and model loading support. Matti Hamalainen <ccr@tnsp.org> parents: 20 diff changeset	318 optSetInputFilename = false;
1404dfcee7b8 More work on scenefile and model loading support. Matti Hamalainen <ccr@tnsp.org> parents: 20 diff changeset	319 std::string optInputFilename = "dragon.scene", basePath;
1404dfcee7b8 More work on scenefile and model loading support. Matti Hamalainen <ccr@tnsp.org> parents: 20 diff changeset	320 DMSimpleScene scene;
6 4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	321
4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	322 // Check commandline argument for enabling shaders
7 95dd5417e7de Add simple help. Matti Hamalainen <ccr@tnsp.org> parents: 6 diff changeset	323 for (int narg = 1; narg < argc; narg++)
95dd5417e7de Add simple help. Matti Hamalainen <ccr@tnsp.org> parents: 6 diff changeset	324 {
95dd5417e7de Add simple help. Matti Hamalainen <ccr@tnsp.org> parents: 6 diff changeset	325 char *arg = argv[narg];
11 89dc8caeff41 Improve option handling a bit. Matti Hamalainen <ccr@tnsp.org> parents: 10 diff changeset	326 if (arg[0] == '-')
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 char *opt = arg + 1;
89dc8caeff41 Improve option handling a bit. Matti Hamalainen <ccr@tnsp.org> parents: 10 diff changeset	329
89dc8caeff41 Improve option handling a bit. Matti Hamalainen <ccr@tnsp.org> parents: 10 diff changeset	330 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	331 opt[0] == '?' \|\| (opt[0] == '-' && opt[1] == '?'))
11 89dc8caeff41 Improve option handling a bit. Matti Hamalainen <ccr@tnsp.org> parents: 10 diff changeset	332 {
89dc8caeff41 Improve option handling a bit. Matti Hamalainen <ccr@tnsp.org> parents: 10 diff changeset	333 optShowHelp = true;
89dc8caeff41 Improve option handling a bit. Matti Hamalainen <ccr@tnsp.org> parents: 10 diff changeset	334 break;
89dc8caeff41 Improve option handling a bit. Matti Hamalainen <ccr@tnsp.org> parents: 10 diff changeset	335 }
89dc8caeff41 Improve option handling a bit. Matti Hamalainen <ccr@tnsp.org> parents: 10 diff changeset	336 else
89dc8caeff41 Improve option handling a bit. Matti Hamalainen <ccr@tnsp.org> parents: 10 diff changeset	337 if (opt[0] == '-')
89dc8caeff41 Improve option handling a bit. Matti Hamalainen <ccr@tnsp.org> parents: 10 diff changeset	338 opt++;
89dc8caeff41 Improve option handling a bit. Matti Hamalainen <ccr@tnsp.org> parents: 10 diff changeset	339
89dc8caeff41 Improve option handling a bit. Matti Hamalainen <ccr@tnsp.org> parents: 10 diff changeset	340 if (opt[0] == 'g')
89dc8caeff41 Improve option handling a bit. Matti Hamalainen <ccr@tnsp.org> parents: 10 diff changeset	341 optUseShaders = true;
89dc8caeff41 Improve option handling a bit. Matti Hamalainen <ccr@tnsp.org> parents: 10 diff changeset	342 else
13 c1e8057cc4d0 Improvements to option handling, add option for setting preferred vsync Matti Hamalainen <ccr@tnsp.org> parents: 12 diff changeset	343 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	344 {
13 c1e8057cc4d0 Improvements to option handling, add option for setting preferred vsync Matti Hamalainen <ccr@tnsp.org> parents: 12 diff changeset	345 case 'w':
c1e8057cc4d0 Improvements to option handling, add option for setting preferred vsync Matti Hamalainen <ccr@tnsp.org> parents: 12 diff changeset	346 case 'h':
c1e8057cc4d0 Improvements to option handling, add option for setting preferred vsync Matti Hamalainen <ccr@tnsp.org> parents: 12 diff changeset	347 case 'm':
c1e8057cc4d0 Improvements to option handling, add option for setting preferred vsync Matti Hamalainen <ccr@tnsp.org> parents: 12 diff changeset	348 case 'v':
c1e8057cc4d0 Improvements to option handling, add option for setting preferred vsync Matti Hamalainen <ccr@tnsp.org> parents: 12 diff changeset	349 if (opt[1] == 0)
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 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	352 goto exit;
c1e8057cc4d0 Improvements to option handling, add option for setting preferred vsync Matti Hamalainen <ccr@tnsp.org> parents: 12 diff changeset	353 }
c1e8057cc4d0 Improvements to option handling, add option for setting preferred vsync Matti Hamalainen <ccr@tnsp.org> parents: 12 diff changeset	354
c1e8057cc4d0 Improvements to option handling, add option for setting preferred vsync Matti Hamalainen <ccr@tnsp.org> parents: 12 diff changeset	355 switch (opt[0])
c1e8057cc4d0 Improvements to option handling, add option for setting preferred vsync Matti Hamalainen <ccr@tnsp.org> parents: 12 diff changeset	356 {
c1e8057cc4d0 Improvements to option handling, add option for setting preferred vsync Matti Hamalainen <ccr@tnsp.org> parents: 12 diff changeset	357 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	358 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	359 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	360 }
c1e8057cc4d0 Improvements to option handling, add option for setting preferred vsync Matti Hamalainen <ccr@tnsp.org> parents: 12 diff changeset	361 break;
c1e8057cc4d0 Improvements to option handling, add option for setting preferred vsync Matti Hamalainen <ccr@tnsp.org> parents: 12 diff changeset	362
c1e8057cc4d0 Improvements to option handling, add option for setting preferred vsync Matti Hamalainen <ccr@tnsp.org> parents: 12 diff changeset	363 default:
c1e8057cc4d0 Improvements to option handling, add option for setting preferred vsync Matti Hamalainen <ccr@tnsp.org> parents: 12 diff changeset	364 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	365 goto exit;
52a586c344f4 Add option -m<filename prefix> to specify mesh/shader filename prefix. Matti Hamalainen <ccr@tnsp.org> parents: 11 diff changeset	366 }
11 89dc8caeff41 Improve option handling a bit. Matti Hamalainen <ccr@tnsp.org> parents: 10 diff changeset	367 }
21 1404dfcee7b8 More work on scenefile and model loading support. Matti Hamalainen <ccr@tnsp.org> parents: 20 diff changeset	368 else
1404dfcee7b8 More work on scenefile and model loading support. Matti Hamalainen <ccr@tnsp.org> parents: 20 diff changeset	369 {
1404dfcee7b8 More work on scenefile and model loading support. Matti Hamalainen <ccr@tnsp.org> parents: 20 diff changeset	370 if (optSetInputFilename)
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 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	373 goto exit;
1404dfcee7b8 More work on scenefile and model loading support. Matti Hamalainen <ccr@tnsp.org> parents: 20 diff changeset	374 }
1404dfcee7b8 More work on scenefile and model loading support. Matti Hamalainen <ccr@tnsp.org> parents: 20 diff changeset	375
1404dfcee7b8 More work on scenefile and model loading support. Matti Hamalainen <ccr@tnsp.org> parents: 20 diff changeset	376 optSetInputFilename = true;
1404dfcee7b8 More work on scenefile and model loading support. Matti Hamalainen <ccr@tnsp.org> parents: 20 diff changeset	377 optInputFilename = std::string(arg);
1404dfcee7b8 More work on scenefile and model loading support. Matti Hamalainen <ccr@tnsp.org> parents: 20 diff changeset	378 if (optInputFilename.empty())
1404dfcee7b8 More work on scenefile and model loading support. Matti Hamalainen <ccr@tnsp.org> parents: 20 diff changeset	379 {
1404dfcee7b8 More work on scenefile and model loading support. Matti Hamalainen <ccr@tnsp.org> parents: 20 diff changeset	380 printf("ERROR: Invalid input filename.\n");
1404dfcee7b8 More work on scenefile and model loading support. Matti Hamalainen <ccr@tnsp.org> parents: 20 diff changeset	381 goto exit;
1404dfcee7b8 More work on scenefile and model loading support. Matti Hamalainen <ccr@tnsp.org> parents: 20 diff changeset	382 }
1404dfcee7b8 More work on scenefile and model loading support. Matti Hamalainen <ccr@tnsp.org> parents: 20 diff changeset	383
1404dfcee7b8 More work on scenefile and model loading support. Matti Hamalainen <ccr@tnsp.org> parents: 20 diff changeset	384 }
7 95dd5417e7de Add simple help. Matti Hamalainen <ccr@tnsp.org> parents: 6 diff changeset	385 }
95dd5417e7de Add simple help. Matti Hamalainen <ccr@tnsp.org> parents: 6 diff changeset	386
8 628c42e94149 Clean up variable names. Matti Hamalainen <ccr@tnsp.org> parents: 7 diff changeset	387 if (optShowHelp)
7 95dd5417e7de Add simple help. Matti Hamalainen <ccr@tnsp.org> parents: 6 diff changeset	388 {
95dd5417e7de Add simple help. Matti Hamalainen <ccr@tnsp.org> parents: 6 diff changeset	389 printf(
21 1404dfcee7b8 More work on scenefile and model loading support. Matti Hamalainen <ccr@tnsp.org> parents: 20 diff changeset	390 "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	391 "-? 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	392 "-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	393 "-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	394 "-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	395 "-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	396 " 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	397 " approx whatever your monitor refresh rate is.\n"
11 89dc8caeff41 Improve option handling a bit. Matti Hamalainen <ccr@tnsp.org> parents: 10 diff changeset	398 "\n",
89dc8caeff41 Improve option handling a bit. Matti Hamalainen <ccr@tnsp.org> parents: 10 diff changeset	399 argv[0],
89dc8caeff41 Improve option handling a bit. Matti Hamalainen <ccr@tnsp.org> parents: 10 diff changeset	400 SET_DEF_WIDTH, SET_DEF_HEIGHT
89dc8caeff41 Improve option handling a bit. Matti Hamalainen <ccr@tnsp.org> parents: 10 diff changeset	401 );
89dc8caeff41 Improve option handling a bit. Matti Hamalainen <ccr@tnsp.org> parents: 10 diff changeset	402
7 95dd5417e7de Add simple help. Matti Hamalainen <ccr@tnsp.org> parents: 6 diff changeset	403 goto exit;
95dd5417e7de Add simple help. Matti Hamalainen <ccr@tnsp.org> parents: 6 diff changeset	404 }
6 4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	405
13 c1e8057cc4d0 Improvements to option handling, add option for setting preferred vsync Matti Hamalainen <ccr@tnsp.org> parents: 12 diff changeset	406 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	407 {
c1e8057cc4d0 Improvements to option handling, add option for setting preferred vsync Matti Hamalainen <ccr@tnsp.org> parents: 12 diff changeset	408 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	409 optWidth, optHeight);
c1e8057cc4d0 Improvements to option handling, add option for setting preferred vsync Matti Hamalainen <ccr@tnsp.org> parents: 12 diff changeset	410 goto exit;
c1e8057cc4d0 Improvements to option handling, add option for setting preferred vsync Matti Hamalainen <ccr@tnsp.org> parents: 12 diff changeset	411 }
c1e8057cc4d0 Improvements to option handling, add option for setting preferred vsync Matti Hamalainen <ccr@tnsp.org> parents: 12 diff changeset	412
21 1404dfcee7b8 More work on scenefile and model loading support. Matti Hamalainen <ccr@tnsp.org> parents: 20 diff changeset	413 // Load the scene
1404dfcee7b8 More work on scenefile and model loading support. Matti Hamalainen <ccr@tnsp.org> parents: 20 diff changeset	414 if (!scene.loadInfo(optInputFilename))
1404dfcee7b8 More work on scenefile and model loading support. Matti Hamalainen <ccr@tnsp.org> parents: 20 diff changeset	415 goto exit;
1404dfcee7b8 More work on scenefile and model loading support. Matti Hamalainen <ccr@tnsp.org> parents: 20 diff changeset	416
1404dfcee7b8 More work on scenefile and model loading support. Matti Hamalainen <ccr@tnsp.org> parents: 20 diff changeset	417 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	418 {
21 1404dfcee7b8 More work on scenefile and model loading support. Matti Hamalainen <ccr@tnsp.org> parents: 20 diff changeset	419 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	420 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	421 goto exit;
52a586c344f4 Add option -m<filename prefix> to specify mesh/shader filename prefix. Matti Hamalainen <ccr@tnsp.org> parents: 11 diff changeset	422 }
52a586c344f4 Add option -m<filename prefix> to specify mesh/shader filename prefix. Matti Hamalainen <ccr@tnsp.org> parents: 11 diff changeset	423
31 6847715b46cd Move piece of code a bit as a cleanup. Matti Hamalainen <ccr@tnsp.org> parents: 27 diff changeset	424 // Define a default light if none defined in scene file
6847715b46cd Move piece of code a bit as a cleanup. Matti Hamalainen <ccr@tnsp.org> parents: 27 diff changeset	425 if (scene.lights.size() == 0)
6847715b46cd Move piece of code a bit as a cleanup. Matti Hamalainen <ccr@tnsp.org> parents: 27 diff changeset	426 {
6847715b46cd Move piece of code a bit as a cleanup. Matti Hamalainen <ccr@tnsp.org> parents: 27 diff changeset	427 DMLight light; // Default light
6847715b46cd Move piece of code a bit as a cleanup. Matti Hamalainen <ccr@tnsp.org> parents: 27 diff changeset	428 scene.lights.push_back(light);
6847715b46cd Move piece of code a bit as a cleanup. Matti Hamalainen <ccr@tnsp.org> parents: 27 diff changeset	429 }
6847715b46cd Move piece of code a bit as a cleanup. Matti Hamalainen <ccr@tnsp.org> parents: 27 diff changeset	430
21 1404dfcee7b8 More work on scenefile and model loading support. Matti Hamalainen <ccr@tnsp.org> parents: 20 diff changeset	431 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	432 scene.models.size());
6 4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	433
21 1404dfcee7b8 More work on scenefile and model loading support. Matti Hamalainen <ccr@tnsp.org> parents: 20 diff changeset	434 basePath = dmGetPath(optInputFilename);
1404dfcee7b8 More work on scenefile and model loading support. Matti Hamalainen <ccr@tnsp.org> parents: 20 diff changeset	435 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	436
1404dfcee7b8 More work on scenefile and model loading support. Matti Hamalainen <ccr@tnsp.org> parents: 20 diff changeset	437 for (DMModel &model : scene.models)
2 b45d8958e5a6 Cosmetic indentation. Matti Hamalainen <ccr@tnsp.org> parents: 0 diff changeset	438 {
21 1404dfcee7b8 More work on scenefile and model loading support. Matti Hamalainen <ccr@tnsp.org> parents: 20 diff changeset	439 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	440 goto exit;
21 1404dfcee7b8 More work on scenefile and model loading support. Matti Hamalainen <ccr@tnsp.org> parents: 20 diff changeset	441
1404dfcee7b8 More work on scenefile and model loading support. Matti Hamalainen <ccr@tnsp.org> parents: 20 diff changeset	442 if (optUseShaders)
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 std::string
1404dfcee7b8 More work on scenefile and model loading support. Matti Hamalainen <ccr@tnsp.org> parents: 20 diff changeset	445 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	446 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	447
1404dfcee7b8 More work on scenefile and model loading support. Matti Hamalainen <ccr@tnsp.org> parents: 20 diff changeset	448 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	449 !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	450 goto exit;
1404dfcee7b8 More work on scenefile and model loading support. Matti Hamalainen <ccr@tnsp.org> parents: 20 diff changeset	451 }
6 4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	452 }
0 3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	453
6 4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	454 // Initialize SDL + OpenGL
21 1404dfcee7b8 More work on scenefile and model loading support. Matti Hamalainen <ccr@tnsp.org> parents: 20 diff changeset	455 if (!dmInitSDLGL(optWidth, optHeight, "GLDragon"))
6 4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	456 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	457
6 4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	458 // According to our mode ..
8 628c42e94149 Clean up variable names. Matti Hamalainen <ccr@tnsp.org> parents: 7 diff changeset	459 if (optUseShaders)
6 4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	460 {
21 1404dfcee7b8 More work on scenefile and model loading support. Matti Hamalainen <ccr@tnsp.org> parents: 20 diff changeset	461 for (DMModel &model : scene.models)
1404dfcee7b8 More work on scenefile and model loading support. Matti Hamalainen <ccr@tnsp.org> parents: 20 diff changeset	462 {
24 c1897cfc8463 Add shader compilation error handling. Matti Hamalainen <ccr@tnsp.org> parents: 23 diff changeset	463 if (!dmCompileShader(GL_FRAGMENT_SHADER, model.fragShaderStr, model.id_fs) \|\|
c1897cfc8463 Add shader compilation error handling. Matti Hamalainen <ccr@tnsp.org> parents: 23 diff changeset	464 !dmCompileShader(GL_VERTEX_SHADER, model.vertShaderStr, model.id_vs))
c1897cfc8463 Add shader compilation error handling. Matti Hamalainen <ccr@tnsp.org> parents: 23 diff changeset	465 goto exit;
c1897cfc8463 Add shader compilation error handling. Matti Hamalainen <ccr@tnsp.org> parents: 23 diff changeset	466
21 1404dfcee7b8 More work on scenefile and model loading support. Matti Hamalainen <ccr@tnsp.org> parents: 20 diff changeset	467 dmLinkModelShaders(model);
1404dfcee7b8 More work on scenefile and model loading support. Matti Hamalainen <ccr@tnsp.org> parents: 20 diff changeset	468 }
6 4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	469 }
25 2403030a0352 "Finish" implementing multiple lights support in scene files. Matti Hamalainen <ccr@tnsp.org> parents: 24 diff changeset	470
27 097184bd34a8 Implement number of lights uniform for the shaders, clean up light setup and Matti Hamalainen <ccr@tnsp.org> parents: 26 diff changeset	471 // ...
6 4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	472 {
27 097184bd34a8 Implement number of lights uniform for the shaders, clean up light setup and Matti Hamalainen <ccr@tnsp.org> parents: 26 diff changeset	473 float specReflection[] = { 0.8f, 0.8f, 0.8f, 1.0f };
097184bd34a8 Implement number of lights uniform for the shaders, clean up light setup and Matti Hamalainen <ccr@tnsp.org> parents: 26 diff changeset	474 glEnable(GL_COLOR_MATERIAL);
097184bd34a8 Implement number of lights uniform for the shaders, clean up light setup and Matti Hamalainen <ccr@tnsp.org> parents: 26 diff changeset	475 glColorMaterial(GL_FRONT, GL_AMBIENT_AND_DIFFUSE);
097184bd34a8 Implement number of lights uniform for the shaders, clean up light setup and Matti Hamalainen <ccr@tnsp.org> parents: 26 diff changeset	476 glMateriali(GL_FRONT, GL_SHININESS, 96);
097184bd34a8 Implement number of lights uniform for the shaders, clean up light setup and Matti Hamalainen <ccr@tnsp.org> parents: 26 diff changeset	477 glMaterialfv(GL_FRONT, GL_SPECULAR, specReflection);
25 2403030a0352 "Finish" implementing multiple lights support in scene files. Matti Hamalainen <ccr@tnsp.org> parents: 24 diff changeset	478 }
6 4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	479
27 097184bd34a8 Implement number of lights uniform for the shaders, clean up light setup and Matti Hamalainen <ccr@tnsp.org> parents: 26 diff changeset	480 // Setup lights
097184bd34a8 Implement number of lights uniform for the shaders, clean up light setup and Matti Hamalainen <ccr@tnsp.org> parents: 26 diff changeset	481 for (size_t n = 0; n < scene.lights.size(); n++)
097184bd34a8 Implement number of lights uniform for the shaders, clean up light setup and Matti Hamalainen <ccr@tnsp.org> parents: 26 diff changeset	482 dmSetupLight(n, scene.lights[n]);
6 4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	483
4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	484 // Define the camera
4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	485 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	486
3 be31ff9e5f58 Port to libSDL2, clean up the code and some de-C++-ifications. Matti Hamalainen <ccr@tnsp.org> parents: 2 diff changeset	487
6 4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	488 // Main loop starts
13 c1e8057cc4d0 Improvements to option handling, add option for setting preferred vsync Matti Hamalainen <ccr@tnsp.org> parents: 12 diff changeset	489 startTime = cycleStart = SDL_GetTicks();
6 4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	490
4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	491 while (!exitFlag)
4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	492 {
4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	493 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	494
6 4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	495 // Check for quit events
4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	496 while (SDL_PollEvent(&event))
4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	497 switch (event.type)
4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	498 {
4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	499 case SDL_QUIT:
4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	500 exitFlag = true;
4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	501 break;
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 case SDL_KEYDOWN:
4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	504 switch (event.key.keysym.sym)
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 case SDLK_ESCAPE:
4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	507 case SDLK_q:
4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	508 exitFlag = true;
4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	509 break;
4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	510 }
4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	511 }
3 be31ff9e5f58 Port to libSDL2, clean up the code and some de-C++-ifications. Matti Hamalainen <ccr@tnsp.org> parents: 2 diff changeset	512
6 4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	513 // Render the next frame
21 1404dfcee7b8 More work on scenefile and model loading support. Matti Hamalainen <ccr@tnsp.org> parents: 20 diff changeset	514 dmDrawScene(scene);
6 4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	515
4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	516 // Draw the current frame
8 628c42e94149 Clean up variable names. Matti Hamalainen <ccr@tnsp.org> parents: 7 diff changeset	517 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	518
6 4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	519 // Rotate for 2 degrees
4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	520 glRotatef(2.0f, 0, 1, 0);
4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	521
4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	522 // Return true if a full rotation was done
15 2d2aadfa3df3 Fix calculation of totalFrames. Matti Hamalainen <ccr@tnsp.org> parents: 14 diff changeset	523 totalFrames++;
13 c1e8057cc4d0 Improvements to option handling, add option for setting preferred vsync Matti Hamalainen <ccr@tnsp.org> parents: 12 diff changeset	524 if (cycleFrames++ == SET_FRAMES)
6 4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	525 {
13 c1e8057cc4d0 Improvements to option handling, add option for setting preferred vsync Matti Hamalainen <ccr@tnsp.org> parents: 12 diff changeset	526 // Reset cycleFrames
c1e8057cc4d0 Improvements to option handling, add option for setting preferred vsync Matti Hamalainen <ccr@tnsp.org> parents: 12 diff changeset	527 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	528
6 4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	529 // 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	530 int cycleEnd = SDL_GetTicks();
c1e8057cc4d0 Improvements to option handling, add option for setting preferred vsync Matti Hamalainen <ccr@tnsp.org> parents: 12 diff changeset	531 double cycleTime = cycleEnd - cycleStart;
10 c6c419861101 Use SDL_GetTicks() instead of std::clock(). Matti Hamalainen <ccr@tnsp.org> parents: 8 diff changeset	532
c6c419861101 Use SDL_GetTicks() instead of std::clock(). Matti Hamalainen <ccr@tnsp.org> parents: 8 diff changeset	533 // Restart the timer
13 c1e8057cc4d0 Improvements to option handling, add option for setting preferred vsync Matti Hamalainen <ccr@tnsp.org> parents: 12 diff changeset	534 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	535
6 4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	536 // Print the current frames per second
4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	537 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	538 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	539 }
2 b45d8958e5a6 Cosmetic indentation. Matti Hamalainen <ccr@tnsp.org> parents: 0 diff changeset	540 }
6 4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	541
13 c1e8057cc4d0 Improvements to option handling, add option for setting preferred vsync Matti Hamalainen <ccr@tnsp.org> parents: 12 diff changeset	542 // Show totals
c1e8057cc4d0 Improvements to option handling, add option for setting preferred vsync Matti Hamalainen <ccr@tnsp.org> parents: 12 diff changeset	543 totalTime = SDL_GetTicks() - startTime;
c1e8057cc4d0 Improvements to option handling, add option for setting preferred vsync Matti Hamalainen <ccr@tnsp.org> parents: 12 diff changeset	544 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	545 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	546
6 4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	547 exit:
8 628c42e94149 Clean up variable names. Matti Hamalainen <ccr@tnsp.org> parents: 7 diff changeset	548 if (dmGLContext != NULL)
628c42e94149 Clean up variable names. Matti Hamalainen <ccr@tnsp.org> parents: 7 diff changeset	549 SDL_GL_DeleteContext(dmGLContext);
5 5dcae4dddcd9 Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 3 diff changeset	550
8 628c42e94149 Clean up variable names. Matti Hamalainen <ccr@tnsp.org> parents: 7 diff changeset	551 if (dmWindow != NULL)
628c42e94149 Clean up variable names. Matti Hamalainen <ccr@tnsp.org> parents: 7 diff changeset	552 SDL_DestroyWindow(dmWindow);
6 4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	553
4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	554 SDL_Quit();
4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	555
4d6fec8f0c64 Implement optional support for vertex/fragment shaders. Cleanups. Matti Hamalainen <ccr@tnsp.org> parents: 5 diff changeset	556 return 0;
0 3d74a9dd96e4 Initial import of Thomas Trummer's original code. Thomas Trummer parents: diff changeset	557 }

Mercurial > hg > forks > gldragon

annotate gldragon.cpp @ 31:6847715b46cd