79 lines
1.9 KiB
C++
79 lines
1.9 KiB
C++
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#include "graphics/RenderTarget.hpp"
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#include <SDL.h>
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#include <Util.hpp>
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SDLU_BEGIN
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RenderTarget::~RenderTarget()
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{
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RETURN_IF_NULLPTR(renderer);
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SDL_DestroyRenderer(renderer);
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}
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void RenderTarget::Clear(const Color& color)
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{
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RETURN_IF_NULLPTR(renderer);
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SDL_SetRenderDrawColor(renderer, color.r, color.g, color.b, color.a);
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SDL_RenderClear(renderer);
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}
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void RenderTarget::Draw(const Drawable& drawable)
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{
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RETURN_IF_NULLPTR(renderer);
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drawable.Draw(renderer);
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}
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void RenderTarget::Display()
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{
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RETURN_IF_NULLPTR(renderer);
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SDL_RenderPresent(renderer);
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if (m_oFramerate != 0)
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{
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Uint64 diff = std::chrono::duration_cast<std::chrono::milliseconds>(
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std::chrono::steady_clock::now() - m_oTimeSinceLastDisplay).count();
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if (diff < 1000 / m_oFramerate)
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{
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SDL_Delay(static_cast<Uint32>(1000 / m_oFramerate - diff));
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}
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}
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m_oTimeSinceLastDisplay = std::chrono::steady_clock::now();
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}
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void RenderTarget::SetMaxFramerate(Uint32 max)
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{
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m_oFramerate = max;
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}
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RenderTarget::RenderTarget(SDL_Window* target) :
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renderer(nullptr), m_oFramerate(0)
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{
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RETURN_IF_NOT_NULLPTR(renderer);
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renderer = SDL_CreateRenderer(target, -1, SDL_RENDERER_ACCELERATED);
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THROW_IF(IS_NULLPTR(renderer),
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std::runtime_error("Failed to create SDL_Renderer* from SDL_Window*: " + std::string(SDL_GetError())));
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m_oTimeSinceLastDisplay = std::chrono::steady_clock::now();
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}
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RenderTarget::RenderTarget(SDL_Surface* target) :
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renderer(nullptr), m_oFramerate(0)
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{
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m_oFramerate = 0;
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RETURN_IF_NOT_NULLPTR(renderer);
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renderer = SDL_CreateSoftwareRenderer(target);
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THROW_IF(IS_NULLPTR(renderer),
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std::runtime_error("Failed to create SDL_Renderer* from SDL_Surface*: " + std::string(SDL_GetError())));
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m_oTimeSinceLastDisplay = std::chrono::steady_clock::now();
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}
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SDLU_END
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