121 lines
2.5 KiB
C++
121 lines
2.5 KiB
C++
#include"texture.h"
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Texture::Texture(){
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//Initialize variables
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szW = 0;
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szH = 0;
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//Set the SDL_Texture to null
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texture = NULL;
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//Initialize the SDL_Image library
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IMG_Init(IMG_INIT_PNG);
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if(TTF_Init() == -1) std::cout << TTF_GetError() << std::endl;
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font = TTF_OpenFont("pangolin.ttf",30);
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};
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void Texture::setRenderer(SDL_Renderer* render){
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//Set renderer
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renderer = render;
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};
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Texture::~Texture(){
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//Deallocate the texture when the class closes
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free();
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IMG_Quit();
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TTF_Quit();
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};
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void Texture::loadTexture(std::string path){
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//Get rid of preexisting texture
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free();
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//Load image at specified path
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SDL_Surface* loadedSurface = IMG_Load( path.c_str() );
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if(loadedSurface == NULL){
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std::cout << "Couldn't load " << path.c_str() << std::endl;
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}
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else{
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//Create texture from surface pixels
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texture = SDL_CreateTextureFromSurface
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(renderer,loadedSurface);
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if(texture == NULL){
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std::cout << "Couldn't create texture from " << path.c_str() << std::endl;
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}
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else{
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//Get image dimensions
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szW = loadedSurface->w;
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szH = loadedSurface->h;
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}
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//Get rid of old loaded surface
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SDL_FreeSurface(loadedSurface);
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}
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};
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bool Texture::loadFromRendererText(std::string textureText, SDL_Color textColor){
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//Get rid of preexisting texture
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free();
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//Render text surface
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SDL_Surface* textSurface = TTF_RenderText_Solid( font, textureText.c_str(), textColor );
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if( textSurface == NULL )
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{
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std::cout << "Unable to render text surface! SDL_ttf Error: " << TTF_GetError() << std::endl;
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}
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else
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{
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//Create texture from surface pixels
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texture = SDL_CreateTextureFromSurface( renderer, textSurface );
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if( texture == NULL )
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{
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std::cout << "Unable to create texture from rendered text! SDL Error: " << SDL_GetError() << std::endl;
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}
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else
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{
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//Get image dimensions
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szW = textSurface->w;
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szH = textSurface->h;
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}
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//Get rid of old surface
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SDL_FreeSurface( textSurface );
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}
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//Return success
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return texture != NULL;
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}
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void Texture::free(){
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//Free texture if it exists
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if(texture != NULL){
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SDL_DestroyTexture(texture);
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texture = NULL;
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szW = 0;
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szH = 0;
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}
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};
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void Texture::render(SDL_Rect* quad,SDL_Rect* frame){
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//Render the texture
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SDL_RenderCopy(renderer,texture,frame,quad);
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};
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void Texture::render(SDL_Rect* quad){
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//Make a frame of the size of the quad
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SDL_Rect frame = {0,0,quad->w,quad->h};
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//Render the texture
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SDL_RenderCopy(renderer,texture,&frame,quad);
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};
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int Texture::getWidth(){
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return szW;
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};
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int Texture::getHeight(){
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return szH;
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};
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