-#include <iostream>
-#include <SDL.h>
-#include <GL/glew.h>
-#include <glm/glm.hpp>
-#include <glm/gtc/matrix_transform.hpp>
+#include "app.hpp"
-#include "init.hpp"
-#include "shader.hpp"
+#include <cctype>
+#include <cstdlib>
+#include <iostream>
-using namespace std;
using namespace blank;
-constexpr GLfloat vtx_coords[] = {
- -1.0f, -1.0f, -1.0f,
- 1.0f, -1.0f, -1.0f,
- 0.0f, 1.0f, -1.0f,
-};
-
-
-int main(int argc, char *argv[]) {
-
- InitSDL init_sdl;
- InitGL init_gl;
- Window window;
-
- GLContext ctx = window.CreateContext();
- InitGLEW init_glew;
- GLContext::EnableVSync();
+namespace {
+enum Mode {
+ NORMAL,
+ FRAME_LIMIT,
+ TIME_LIMIT,
+ FIXED_FRAME_LIMIT,
+};
- Shader vtx_shader(GL_VERTEX_SHADER);
- vtx_shader.Source(
- "#version 330 core\n"
- "layout(location = 0) in vec3 vertexPosition_modelspace;\n"
- "uniform mat4 MVP;\n"
- "void main() {\n"
- "vec4 v = vec4(vertexPosition_modelspace, 1);\n"
- "gl_Position = MVP * v;\n"
- "}\n"
- );
- vtx_shader.Compile();
+}
- if (!vtx_shader.Compiled()) {
- cerr << "vertex shader compile error" << endl;
- vtx_shader.Log(cerr);
- return 4;
- }
- Shader frag_shader(GL_FRAGMENT_SHADER);
- frag_shader.Source(
- "#version 330 core\n"
- "out vec3 color;\n"
- "void main() {\n"
- "color = vec3(1, 1, 1);\n"
- "}\n"
- );
- frag_shader.Compile();
+int main(int argc, char *argv[]) {
- if (!frag_shader.Compiled()) {
- cerr << "fragment shader compile error" << endl;
- frag_shader.Log(cerr);
- return 4;
+ Mode mode = NORMAL;
+ size_t n = 0, t = 0;
+
+ bool error = false;
+ for (int i = 1; i < argc; ++i) {
+ if (argv[i] == nullptr || argv[i][0] == '\0') continue;
+ if (argv[i][0] == '-') {
+ if (argv[i][1] == 't' && argv[i][2] == '\0') {
+ ++i;
+ if (i >= argc) {
+ std::cerr << "missing argument to -t" << std::endl;
+ error = true;
+ } else {
+ t = std::strtoul(argv[i], nullptr, 10);
+ }
+ } else {
+ std::cerr << "unable to interpret argument "
+ << i << " (" << argv[i] << ")" << std::endl;
+ error = true;
+ }
+ } else if (std::isdigit(*argv[i])) {
+ n = std::strtoul(argv[i], nullptr, 10);
+ } else {
+ std::cerr << "unable to interpret argument "
+ << i << " (" << argv[i] << ")" << std::endl;
+ error = true;
+ }
}
-
- Program program;
- program.Attach(vtx_shader);
- program.Attach(frag_shader);
- program.Link();
-
- if (!program.Linked()) {
- cerr << "program link error" << endl;
- program.Log(cerr);
- return 4;
+ if (error) {
+ return 1;
}
-
- GLuint VertexArrayID;
- glGenVertexArrays(1, &VertexArrayID);
- glBindVertexArray(VertexArrayID);
-
-
- GLuint vtx_buf;
- glGenBuffers(1, &vtx_buf);
- glBindBuffer(GL_ARRAY_BUFFER, vtx_buf);
- glBufferData(GL_ARRAY_BUFFER, sizeof(vtx_coords), vtx_coords, GL_STATIC_DRAW);
-
-
- glm::mat4 projection = glm::perspective(
- 45.0f, // FOV in degrees
- 1.0f, // aspect ratio
- 0.1f, // near clip
- 100.0f // far clip
- );
- glm::mat4 view = glm::lookAt(
- glm::vec3(0, 0, 0), // observer
- glm::vec3(0, 0, -1), // target
- glm::vec3(0, 1, 0) // up
- );
- glm::mat4 model(1.0f); // identity: no transformation
- glm::mat4 mvp = projection * view * model;
-
- GLuint mvp_id = program.UniformLocation("MVP");
-
-
- glClearColor(0.0, 0.0, 0.0, 1.0);
-
-
- bool running = true;
- Uint32 last = SDL_GetTicks();
- while (running) {
- Uint32 now = SDL_GetTicks();
- int delta = now - last;
-
- SDL_Event event;
- while (SDL_PollEvent(&event)) {
- switch (event.type) {
- case SDL_QUIT:
- running = false;
- break;
- default:
- break;
- }
+ if (n > 0) {
+ if (t > 0) {
+ mode = FIXED_FRAME_LIMIT;
+ } else {
+ mode = FRAME_LIMIT;
}
+ } else if (t > 0) {
+ mode = TIME_LIMIT;
+ }
- glClear(GL_COLOR_BUFFER_BIT);
-
- program.Use();
-
- glUniformMatrix4fv(mvp_id, 1, GL_FALSE, &mvp[0][0]);
-
- glEnableVertexAttribArray(0);
- glBindBuffer(GL_ARRAY_BUFFER, vtx_buf);
- glVertexAttribPointer(
- 0, // attribute 0 (for shader)
- 3, // size
- GL_FLOAT, // type
- GL_FALSE, // normalized
- 0, // stride
- nullptr // offset
- );
- glDrawArrays(
- GL_TRIANGLES, // how
- 0, // start
- 3 // len
- );
- glDisableVertexAttribArray(0);
-
- window.Flip();
-
- last = now;
+ Application app;
+ switch (mode) {
+ default:
+ case NORMAL:
+ app.Run();
+ break;
+ case FRAME_LIMIT:
+ app.RunN(n);
+ break;
+ case TIME_LIMIT:
+ app.RunT(t);
+ break;
+ case FIXED_FRAME_LIMIT:
+ app.RunS(n, t);
+ break;
}
return 0;
projects / blank.git / blobdiff