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#include "video.hpp"
#include "debug.hpp"
#include <exception>
#include <cstdint>
#include <vector>
extern "C" {
#include <SDL2/SDL.h>
}
using namespace wsdl2;
/* class texture */
texture::texture(renderer& r, texture::pixformat p, texture::access a,
std::size_t width, std::size_t height)
: _format(p), _access(a), m_renderer(r)
{
m_texture = SDL_CreateTexture(r.m_renderer,
static_cast<Uint32>(p), static_cast<int>(a),
static_cast<int>(width), static_cast<int>(height)
);
}
texture::~texture() {
if (m_texture != NULL)
SDL_DestroyTexture(m_texture);
else
npdebug("warning: m_texture is NULL");
}
SDL_Texture* texture::sdl() {
#ifdef DEBUG
if (m_texture == NULL) {
throw std::runtime_error(
"attempted to call texture::sdl() when m_texture is NULL"
);
}
#endif
return m_texture;
}
/* class renderer */
renderer::renderer() {
npdebug("warning: created uninitialized renderer object");
}
SDL_Renderer * renderer::sdl() {
#ifdef DEBUG
if (m_renderer == NULL) {
throw std::runtime_error(
"attempted to call renderer::sdl() when m_renderer is NULL"
);
}
#endif
return m_renderer;
}
void renderer::create_sdl_renderer(SDL_Window *win) {
// create a rendering contest
m_renderer = SDL_CreateRenderer(
win, -1, SDL_RENDERER_ACCELERATED | SDL_RENDERER_PRESENTVSYNC
);
if (m_renderer == NULL) {
throw std::runtime_error("failed to create SDL renderer");
}
}
renderer::renderer(window& w) {
create_sdl_renderer(w.sdl());
}
renderer::~renderer() {
if (m_renderer != NULL)
SDL_DestroyRenderer(m_renderer);
else
npdebug("warning: m_renderer is NULL")
}
/* class window */
// existing window mapping (SDL_ID <-> window)
std::map<Uint8, window*> window::win_map;
window::window(const std::string& title, std::size_t width, std::size_t height) {
// create (hidden) window
m_window = SDL_CreateWindow(
title.c_str(),
SDL_WINDOWPOS_CENTERED,
SDL_WINDOWPOS_CENTERED,
static_cast<int>(width),
static_cast<int>(height),
SDL_WINDOW_OPENGL | SDL_WINDOW_HIDDEN
);
if (m_window == NULL) {
throw std::runtime_error("failed to create SDL window");
}
// put into window id mapping
win_map.insert(std::pair<Uint8, window*>(static_cast<Uint8>(SDL_GetWindowID(m_window)), this));
m_renderer.create_sdl_renderer(m_window);
// other attributes
m_open = false;
}
window::~window() {
if (m_window != NULL)
SDL_DestroyWindow(m_window);
else
npdebug("warning: m_window is NULL")
}
void window::open() {
show();
m_open = true;
}
void window::close() {
hide();
m_open = false;
}
bool window::is_open() {
return m_open;
}
bool window::is_visible() {
return SDL_WINDOW_SHOWN & SDL_GetWindowFlags(m_window);
}
window * window::get(Uint8 id)
{
auto it = win_map.find(id);
return (it != win_map.end()) ? it->second : 0;
}
void window::update() {
m_renderer.clear();
m_renderer.present();
}
SDL_Window * window::sdl() {
#ifdef DEBUG
if (m_window == NULL) {
throw std::runtime_error(
"attempted to call window::sdl() when m_window is NULL"
);
}
#endif
return m_window;
}
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