ModuleTextures.cpp

#include "Globals.h"
#include "Application.h"
#include "ModuleRender.h"
#include "ModuleTextures.h"
#include "SDL.h"

#include "SDL_image/include/SDL_image.h"

using namespace std;

ModuleTextures::ModuleTextures()
{
}

// Destructor
ModuleTextures::~ModuleTextures()
{
	IMG_Quit();
}

// Called before render is available
bool ModuleTextures::Init()
{
	bool ret = true;

	// load support for the PNG image format
	int flags = IMG_INIT_PNG;
	int init = IMG_Init(flags);

	if ((init & flags) != flags)
		ret = false;

	return ret;
}

// Called before quitting
bool ModuleTextures::CleanUp()
{
	for (list<SDL_Texture*>::iterator it = textures.begin(); it != textures.end(); ++it)
		SDL_DestroyTexture(*it);

	textures.clear();
	return true;
}

// Load new texture from file path
SDL_Texture* const ModuleTextures::Load(const char* path)
{
	SDL_Texture* texture = nullptr;
	SDL_Surface* surface = IMG_Load(path);

	if (surface != nullptr)
	{
		texture = SDL_CreateTextureFromSurface(App->renderer->renderer, surface);

		if (texture != nullptr)
			textures.push_back(texture);

		SDL_FreeSurface(surface);
	}

	return texture;
}

// Free texture from memory
void ModuleTextures::Unload(SDL_Texture* texture)
{
	for (list<SDL_Texture*>::iterator it = textures.begin(); it != textures.end(); ++it)
	{
		if (*it == texture)
		{
			SDL_DestroyTexture(*it);
			textures.erase(it);
			break;
		}
	}
}