vrmodel
changeset 1:76e75cbcb758
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| author | John Tsiombikas <nuclear@member.fsf.org> |
|---|---|
| date | Fri, 29 Aug 2014 23:07:59 +0300 |
| parents | affaad5fcd30 |
| children | be91b72ce3f9 |
| files | .hgignore Makefile src/main.cc src/opengl.h src/vport.cc src/vport.h |
| diffstat | 6 files changed, 201 insertions(+), 0 deletions(-) [+] |
line diff
1.1 --- a/.hgignore Fri Aug 29 18:56:54 2014 +0300 1.2 +++ b/.hgignore Fri Aug 29 23:07:59 2014 +0300 1.3 @@ -1,3 +1,4 @@ 1.4 \.o$ 1.5 \.d$ 1.6 \.swp$ 1.7 +^vrmodel$
2.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000 2.2 +++ b/Makefile Fri Aug 29 23:07:59 2014 +0300 2.3 @@ -0,0 +1,25 @@ 2.4 +src = $(wildcard src/*.cc) 2.5 +obj = $(src:.cc=.o) 2.6 +dep = $(obj:.o=.d) 2.7 +bin = vrmodel 2.8 + 2.9 +CFLAGS = -pedantic -Wall -g `pkg-config --cflags sdl2` 2.10 +LDFLAGS = $(libgl) `pkg-config --libs sdl2` 2.11 + 2.12 +ifeq ($(shell uname -s), Darwin) 2.13 + libgl = -framework OpenGL -lGLEW 2.14 +else 2.15 + libgl = -lGL -lGLU -lGLEW 2.16 +endif 2.17 + 2.18 +$(bin): $(obj) 2.19 + $(CC) -o $@ $(obj) $(LDFLAGS) 2.20 + 2.21 +-include $(dep) 2.22 + 2.23 +%.d: %.cc 2.24 + @$(CPP) $(CFLAGS) $< -MM -MT $(@:.d=.o) >$@ 2.25 + 2.26 +.PHONY: clean 2.27 +clean: 2.28 + rm -f $(obj) $(bin)
3.1 --- a/src/main.cc Fri Aug 29 18:56:54 2014 +0300 3.2 +++ b/src/main.cc Fri Aug 29 23:07:59 2014 +0300 3.3 @@ -0,0 +1,101 @@ 3.4 +#include <stdio.h> 3.5 +#include <stdlib.h> 3.6 +#include <SDL2/SDL.h> 3.7 +#include "opengl.h" 3.8 +#include "vport.h" 3.9 + 3.10 +#define ANYPOS SDL_WINDOWPOS_UNDEFINED 3.11 + 3.12 +void display(); 3.13 +bool handle_event(SDL_Event *ev); 3.14 +bool handle_key(int key, bool pressed); 3.15 +void reshape(int x, int y); 3.16 + 3.17 +static SDL_Window *win; 3.18 +static SDL_GLContext ctx; 3.19 + 3.20 +int main(int argc, char **argv) 3.21 +{ 3.22 + if(SDL_Init(SDL_INIT_VIDEO | SDL_INIT_TIMER) == -1) { 3.23 + fprintf(stderr, "failed to initialize SDL\n"); 3.24 + return 1; 3.25 + } 3.26 + 3.27 + unsigned int flags = SDL_WINDOW_OPENGL | SDL_WINDOW_RESIZABLE; 3.28 + if(!(win = SDL_CreateWindow("vrmodel", ANYPOS, ANYPOS, 1280, 800, flags))) { 3.29 + fprintf(stderr, "failed to create window\n"); 3.30 + return 1; 3.31 + } 3.32 + if(!(ctx = SDL_GL_CreateContext(win))) { 3.33 + fprintf(stderr, "failed to create OpenGL context\n"); 3.34 + SDL_Quit(); 3.35 + return 1; 3.36 + } 3.37 + 3.38 + for(;;) { 3.39 + SDL_Event ev; 3.40 + SDL_WaitEvent(&ev); 3.41 + 3.42 + do { 3.43 + if(!handle_event(&ev)) { 3.44 + goto done; 3.45 + } 3.46 + } while(SDL_PollEvent(&ev)); 3.47 + 3.48 + display(); 3.49 + } 3.50 + 3.51 +done: 3.52 + SDL_Quit(); 3.53 + return 0; 3.54 +} 3.55 + 3.56 +void display() 3.57 +{ 3.58 + glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT); 3.59 + 3.60 + int width, height; 3.61 + SDL_GetWindowSize(win, &width, &height); 3.62 + glViewport(0, 0, width, height); 3.63 + 3.64 + glMatrixMode(GL_PROJECTION); 3.65 + glLoadIdentity(); 3.66 + gluPerspective(50.0, (float)width / (float)height, 0.5, 1000.0); 3.67 + 3.68 + glMatrixMode(GL_MODELVIEW); 3.69 + glLoadIdentity(); 3.70 + glTranslatef(0, 0, -10); 3.71 + glRotatef(25, 1, 0, 0); 3.72 + 3.73 + draw_vport(); 3.74 + 3.75 + SDL_GL_SwapWindow(win); 3.76 +} 3.77 + 3.78 +bool handle_event(SDL_Event *ev) 3.79 +{ 3.80 + switch(ev->type) { 3.81 + case SDL_KEYDOWN: 3.82 + case SDL_KEYUP: 3.83 + return handle_key(ev->key.keysym.sym, ev->key.state == SDL_PRESSED); 3.84 + 3.85 + default: 3.86 + break; 3.87 + } 3.88 + 3.89 + return true; 3.90 +} 3.91 + 3.92 +bool handle_key(int key, bool pressed) 3.93 +{ 3.94 + if(pressed) { 3.95 + switch(key) { 3.96 + case 27: 3.97 + return false; 3.98 + 3.99 + default: 3.100 + break; 3.101 + } 3.102 + } 3.103 + return true; 3.104 +}
4.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000 4.2 +++ b/src/opengl.h Fri Aug 29 23:07:59 2014 +0300 4.3 @@ -0,0 +1,16 @@ 4.4 +#ifndef OPENGL_H_ 4.5 +#define OPENGL_H_ 4.6 + 4.7 +#include <GL/glew.h> 4.8 + 4.9 +#ifdef WIN32 4.10 +#include <windows.h> 4.11 +#endif 4.12 + 4.13 +#ifdef __APPLE__ 4.14 +#include <OpenGL/gl.h> 4.15 +#else 4.16 +#include <GL/gl.h> 4.17 +#endif 4.18 + 4.19 +#endif /* OPENGL_H_ */
5.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000 5.2 +++ b/src/vport.cc Fri Aug 29 23:07:59 2014 +0300 5.3 @@ -0,0 +1,49 @@ 5.4 +#include "vport.h" 5.5 +#include "opengl.h" 5.6 + 5.7 +static void draw_grid(int num_lines, float sep); 5.8 + 5.9 +bool init_vport() 5.10 +{ 5.11 + return true; 5.12 +} 5.13 + 5.14 +void destroy_vport() 5.15 +{ 5.16 +} 5.17 + 5.18 +void draw_vport() 5.19 +{ 5.20 + draw_grid(10, 2.5); 5.21 +} 5.22 + 5.23 +static void draw_grid(int num_lines, float sep) 5.24 +{ 5.25 + float size = num_lines * sep; 5.26 + 5.27 + glLineWidth(1); 5.28 + 5.29 + glBegin(GL_LINES); 5.30 + glColor3f(0.3, 0.3, 0.3); 5.31 + for(int i=1; i<=num_lines; i++) { 5.32 + glVertex3f(-i * sep, 0, -size); 5.33 + glVertex3f(-i * sep, 0, size); 5.34 + glVertex3f(i * sep, 0, -size); 5.35 + glVertex3f(i * sep, 0, size); 5.36 + glVertex3f(-size, 0, -i * sep); 5.37 + glVertex3f(size, 0, -i * sep); 5.38 + glVertex3f(-size, 0, i * sep); 5.39 + glVertex3f(size, 0, i * sep); 5.40 + } 5.41 + glEnd(); 5.42 + 5.43 + glLineWidth(2); 5.44 + glBegin(GL_LINES); 5.45 + glColor3f(1, 0.3, 0.3); 5.46 + glVertex3f(-size, 0, 0); 5.47 + glVertex3f(size, 0, 0); 5.48 + glColor3f(0.3, 1, 0.3); 5.49 + glVertex3f(0, 0, -size); 5.50 + glVertex3f(0, 0, size); 5.51 + glEnd(); 5.52 +}