148 lines
3.4 KiB
D
148 lines
3.4 KiB
D
import std.stdio;
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import derelict.sdl2.sdl;
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import derelict.opengl3.gl3;
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import glamour.vao;
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import glamour.shader;
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import glamour.vbo;
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import gl3n.linalg;
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static import logo;
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extern(C) void GetDisplaySize(int * width, int * height, int * num_monitors);
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int width;
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int height;
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GLint position_idx;
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GLint view_idx;
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GLint color_idx;
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mat4 view_matrix;
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Shader program;
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void init()
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{
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logo.init();
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glClearColor (0.0, 0.0, 0.0, 0.0);
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glViewport(0, 0, width, height);
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immutable string shader_src = `
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vertex:
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uniform mat4 view;
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in vec2 position;
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void main(void)
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{
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gl_Position = view * vec4(position, 0.0, 1.0);
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}
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fragment:
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uniform vec3 color;
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void main(void)
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{
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gl_FragColor = vec4(color, 1.0);
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}
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`;
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program = new Shader("program", shader_src);
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program.bind();
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position_idx = program.get_attrib_location("position");
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view_idx = program.get_uniform_location("view");
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color_idx = program.get_uniform_location("color");
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}
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void display(SDL_Window * window)
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{
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glClear(GL_COLOR_BUFFER_BIT);
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view_matrix.make_identity();
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view_matrix.scale(height / cast(float)width, 1.0, 1.0);
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view_matrix.scale(0.25, 0.25, 0.25);
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program.bind();
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glUniformMatrix4fv(view_idx, 1, GL_TRUE, view_matrix.value_ptr);
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float[] color = [0.0, 93.0/255.0, 171.0/255.0];
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glUniform3fv(color_idx, 1, color.ptr);
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for (int i = 0; i < 6; i++)
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{
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logo.draw(logo.FACE, logo.GENTEX, i, position_idx);
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}
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color = [187.0/255.0, 188.0/255.0, 190.0/255.0];
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glUniform3fv(color_idx, 1, color.ptr);
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for (int i = 0; i < 11; i++)
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{
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logo.draw(logo.FACE, logo.CORPORATION, i, position_idx);
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}
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color = [1.0, 1.0, 1.0];
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glUniform3fv(color_idx, 1, color.ptr);
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for (int i = 0; i < 6; i++)
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{
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logo.draw(logo.WIRE, logo.GENTEX, i, position_idx);
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}
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for (int i = 0; i < 11; i++)
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{
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logo.draw(logo.WIRE, logo.CORPORATION, i, position_idx);
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}
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SDL_GL_SwapWindow(window);
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}
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int main()
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{
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GetDisplaySize(&width, &height, null);
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if (width > 1920 * 2)
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width = 1920 * 2; /* restrict to two monitors */
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DerelictSDL2.load();
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DerelictGL3.load();
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if (SDL_Init(SDL_INIT_EVERYTHING))
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{
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writeln("Failed to initialize SDL!");
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return 1;
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}
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SDL_GL_SetAttribute(SDL_GL_MULTISAMPLEBUFFERS, 1);
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SDL_GL_SetAttribute(SDL_GL_MULTISAMPLESAMPLES, 4);
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SDL_Window * window = SDL_CreateWindow("Gentex ScreenSaver",
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SDL_WINDOWPOS_UNDEFINED,
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SDL_WINDOWPOS_UNDEFINED,
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width,
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height,
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SDL_WINDOW_OPENGL | SDL_WINDOW_BORDERLESS);
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SDL_GLContext context = SDL_GL_CreateContext(window);
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if (window == null)
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{
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writeln("Failed to create SDL window!");
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return 1;
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}
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DerelictGL3.reload();
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init();
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SDL_Event event;
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for (;;)
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{
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if (SDL_PollEvent(&event))
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{
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if (event.type == SDL_QUIT)
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break;
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else if (event.type == SDL_KEYDOWN)
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{
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if (event.key.keysym.scancode == SDL_SCANCODE_ESCAPE)
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break;
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}
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}
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display(window);
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}
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SDL_GL_DeleteContext(context);
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SDL_DestroyWindow(window);
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SDL_Quit();
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return 0;
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}
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