int CALLBACK WinMain(
__in HINSTANCE hInstance,
__in HINSTANCE hPrevInstance,
__in LPSTR lpCmdLine,
__in int nCmdShow
)
#endif
{
if (!glfwInit())
return 0;
GLFWwindow* window = glfwCreateWindow(640, 480, "Window Title", NULL, NULL);
glfwMakeContextCurrent(window);
glewExperimental = GL_TRUE;
if (glewInit() != GLEW_OK)
return -1;
GLuint vertexBuffer;
glGenBuffers(1, &vertexBuffer);
Shader* vertexShader = new Shader("Content\\Shaders\\vertexShader.vs", GL_VERTEX_SHADER);
Shader* fragmentShader = new Shader("Content\\Shaders\\fragmentShader.fs", GL_FRAGMENT_SHADER);
ShaderProgram* program = new ShaderProgram();
program->AttachShader(vertexShader);
program->AttachShader(fragmentShader);
program->BindFragDataLocation(0, "outColour");
program->Link();
program->Use();
GLint posAttrib = program->GetAttribLocation("position");
GLuint vao;
glGenVertexArrays(1, &vao);
glBindVertexArray(vao);
GLuint vbo;
glGenBuffers(1, &vbo);
float vertices[] = {
0.0f, 0.5f,
0.5f, -0.5f,
-0.5f, -0.5f
};
glBindBuffer(GL_ARRAY_BUFFER, vbo);
glBufferData(GL_ARRAY_BUFFER, sizeof(vertices), vertices, GL_STATIC_DRAW);
glEnableVertexAttribArray(posAttrib);
glVertexAttribPointer
(posAttrib, // Ref input
2, // Number of values for input
GL_FLOAT, // Type of each component
GL_FALSE, // Whether to normalise
0, // Stride
0); // Offset
while (!glfwWindowShouldClose(window))
{
glClearColor(0.f, 0.f, 0.f, 1.0f);
glClear(GL_COLOR_BUFFER_BIT);
glDrawArrays(GL_TRIANGLES, 0, 3);
glfwSwapBuffers(window);
glfwPollEvents();
}
glfwDestroyWindow(window);
return 0;
}
void SORA_test_draw2(int w, int h) {
static bool init = false;
static ShaderProgram shader;
static TextureManager tex_mgr;
if(init == false) {
init = true;
//create shader
//2d shader
std::string app_vert_path = sora::Filesystem::GetAppPath("shader/simple.vs");
std::string app_frag_path = sora::Filesystem::GetAppPath("shader/simple.fs");
sora::MemoryFile vert_file(app_vert_path);
sora::MemoryFile frag_file(app_frag_path);
vert_file.Open();
frag_file.Open();
const char *vert_src = (const char*)(vert_file.start);
const char *frag_src = (const char*)(frag_file.start);
bool prog_result = shader.Init(vert_src, frag_src);
if(prog_result == false) {
LOGE("Could not create program.");
}
{
std::string tex_path = sora::Filesystem::GetAppPath("texture/sora.png");
sora::MemoryFile tex_file(tex_path);
tex_file.Open();
Texture tex("sora");
tex.SetData(sora::Texture::kFilePNG, tex_file.start, tex_file.end);
tex_mgr.Add(tex);
}
}
static float a = 0;
a += 0.1f;
glClearColor(0.1f, 0.1f, 0.1f, 1.0f);
glClear(GL_COLOR_BUFFER_BIT);
glViewport(0, 0, w, h);
SR_CHECK_ERROR("Render 2d start");
//draw 2d something
glm::mat4 world_mat(1.0f);
int pos_loc = shader.GetAttribLocation("a_position");
int tex_loc = shader.GetAttribLocation("a_texcoord");
glEnableVertexAttribArray(pos_loc);
glEnableVertexAttribArray(tex_loc);
int mvp_loc = shader.GetUniformLocation("u_worldViewProjection");
float vertex[] = {
-0.5, -0.5, 0,
0.5, -0.5, 0,
0, 0.5, 0,
};
float texcoord[] = {
0, 0,
1, 0,
0.5, 1,
};
glUseProgram(shader.prog);
Texture *tex = tex_mgr.Get_ptr(string("sora"));
glBindTexture(GL_TEXTURE_2D, tex->handle());
glUniformMatrix4fv(mvp_loc, 1, GL_FALSE, glm::value_ptr(world_mat));
glVertexAttribPointer(pos_loc, 3, GL_FLOAT, GL_FALSE, 0, vertex);
glVertexAttribPointer(tex_loc, 2, GL_FLOAT, GL_FALSE, 0, texcoord);
glDrawArrays(GL_TRIANGLE_FAN, 0, 3);
SR_CHECK_ERROR("glDrawArrays");
}