From 6d17b081cc16b0ba13ab918e885674b2defa8280 Mon Sep 17 00:00:00 2001
From: Tomasz Kramkowski <tk@the-tk.com>
Date: Fri, 30 Mar 2018 15:50:27 +0100
Subject: Rename project gltest -> faqe

The project has been renamed to faqe.

The logic for this name: quake -> fake quake -> faqe
---
 faqe.c | 111 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 111 insertions(+)
 create mode 100644 faqe.c

(limited to 'faqe.c')

diff --git a/faqe.c b/faqe.c
new file mode 100644
index 0000000..0a9ab7d
--- /dev/null
+++ b/faqe.c
@@ -0,0 +1,111 @@
+/*
+ * Copyright (C) 2018 Tomasz Kramkowski <tk@the-tk.com>
+ * SPDX-License-Identifier: MIT
+ */
+#include <GLFW/glfw3.h>
+#include <stdbool.h>
+
+#include "assets.h"
+#include "eprintf.h"
+#include "gl.h"
+#include "glprog.h"
+#include "linmath.h"
+#include "nelem.h"
+
+enum {
+	WIDTH = 800,
+	HEIGHT = 600,
+};
+
+void fb_size_cb(GLFWwindow *win, int width, int height)
+{
+	(void)win;
+	gl_viewport(0, 0, width, height);
+}
+
+void take_input(GLFWwindow *win)
+{
+	if (glfwGetKey(win, GLFW_KEY_ESCAPE) == GLFW_PRESS)
+		glfwSetWindowShouldClose(win, true);
+}
+
+int main(int argc, char **argv)
+{
+	GLFWwindow *win;
+	GLuint ebo, vbo, vao, prog;
+	GLint ucolor;
+	struct vertex {
+		vec3 pos;
+		vec3 col;
+		vec2 uv;
+	} verts[] = {
+		{{  0.5,  0.5, 0.0 }, { 1.0, 0.0, 0.0 }, { 1.0, 1.0 }},
+		{{  0.5, -0.5, 0.0 }, { 0.0, 1.0, 0.0 }, { 1.0, 0.0 }},
+		{{ -0.5, -0.5, 0.0 }, { 0.0, 0.0, 1.0 }, { 0.0, 0.0 }},
+		{{ -0.5,  0.5, 0.0 }, { 1.0, 1.0, 0.0 }, { 0.0, 1.0 }},
+	};
+	GLuint idxs[] = {
+		0, 1, 3,
+		1, 2, 3,
+	};
+
+	setprogname(argc >= 1 && argv[0] != NULL ? argv[0] : "faqe");
+
+	glfwInit();
+
+	glfwWindowHint(GLFW_CONTEXT_VERSION_MAJOR, 3);
+	glfwWindowHint(GLFW_CONTEXT_VERSION_MINOR, 3);
+	glfwWindowHint(GLFW_OPENGL_PROFILE, GLFW_OPENGL_CORE_PROFILE);
+
+	win = glfwCreateWindow(WIDTH, HEIGHT, "faqe", NULL, NULL);
+	if (win == NULL)
+		eprintf("Failed to create GLFW window");
+	glfwMakeContextCurrent(win);
+
+	gl_load((gl_loadfunc *)glfwGetProcAddress);
+	glfwSetFramebufferSizeCallback(win, &fb_size_cb);
+	fb_size_cb(win, WIDTH, HEIGHT);
+
+	gl_buf_gen(1, &vbo);
+	gl_buf_gen(1, &ebo);
+	gl_va_gen(1, &vao);
+
+	gl_va_bind(vao);
+
+	gl_buf_bind(GL_ARRAY_BUFFER, vbo);
+	gl_buf_data(GL_ARRAY_BUFFER, sizeof verts, verts, GL_STATIC_DRAW);
+
+	gl_buf_bind(GL_ELEMENT_ARRAY_BUFFER, ebo);
+	gl_buf_data(GL_ELEMENT_ARRAY_BUFFER, sizeof idxs, idxs, GL_STATIC_DRAW);
+
+	gl_va_define(0, NELEM(verts[0].pos), GL_FLOAT, GL_FALSE, sizeof *verts, (void *)offsetof(struct vertex, pos));
+	gl_va_enable(0);
+	gl_va_define(1, NELEM(verts[0].col), GL_FLOAT, GL_FALSE, sizeof *verts, (void *)offsetof(struct vertex, col));
+	gl_va_enable(1);
+	gl_va_define(2, NELEM(verts[0].uv), GL_FLOAT, GL_FALSE, sizeof *verts, (void *)offsetof(struct vertex, uv));
+	gl_va_enable(2);
+
+	prog = glprog_load(2, (struct shdrdat []){
+			{ GL_VERTEX_SHADER, vert_glsl.data, vert_glsl.size },
+			{ GL_FRAGMENT_SHADER, frag_glsl.data, frag_glsl.size },
+				},
+		1, &(struct unidat){ "ucolor", &ucolor });
+
+	gl_poly_mode(GL_FRONT_AND_BACK, GL_LINE);
+
+	while (!glfwWindowShouldClose(win)) {
+		take_input(win);
+
+		gl_clearcolor(0.2, 0.3, 0.3, 1.0);
+		gl_clear(GL_COLOR_BUFFER_BIT);
+		gl_prog_use(prog);
+		gl_va_bind(vao);
+		gl_draw_elems(GL_TRIANGLES, 6, GL_UNSIGNED_INT, 0);
+		gl_va_bind(0);
+
+		glfwSwapBuffers(win);
+		glfwPollEvents();
+	}
+
+	glfwTerminate();
+}
-- 
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