mirror of
https://github.com/libSDL2pp/libSDL2pp.git
synced 2025-08-04 03:15:59 -04:00
237 lines
7.2 KiB
C++
237 lines
7.2 KiB
C++
/*
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libSDL2pp - C++ wrapper for libSDL2
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Copyright (C) 2013 Dmitry Marakasov <amdmi3@amdmi3.ru>
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This software is provided 'as-is', without any express or implied
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warranty. In no event will the authors be held liable for any damages
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arising from the use of this software.
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Permission is granted to anyone to use this software for any purpose,
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including commercial applications, and to alter it and redistribute it
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freely, subject to the following restrictions:
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1. The origin of this software must not be misrepresented; you must not
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claim that you wrote the original software. If you use this software
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in a product, an acknowledgment in the product documentation would be
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appreciated but is not required.
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2. Altered source versions must be plainly marked as such, and must not be
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misrepresented as being the original software.
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3. This notice may not be removed or altered from any source distribution.
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*/
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#include <vector>
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#include <SDL2/SDL.h>
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#include <SDL2pp/Renderer.hh>
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#include <SDL2pp/Window.hh>
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#include <SDL2pp/Exception.hh>
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#include <SDL2pp/Texture.hh>
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#include <SDL2pp/Rect.hh>
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#include <SDL2pp/Point.hh>
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namespace SDL2pp {
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Renderer::Renderer(Window& window, int index, Uint32 flags) {
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if ((renderer_ = SDL_CreateRenderer(window.Get(), index, flags)) == nullptr)
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throw Exception("SDL_CreateRenderer failed");
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}
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Renderer::~Renderer() {
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if (renderer_ != nullptr)
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SDL_DestroyRenderer(renderer_);
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}
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Renderer::Renderer(Renderer&& other) noexcept : renderer_(other.renderer_) {
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other.renderer_ = nullptr;
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}
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Renderer& Renderer::operator=(Renderer&& other) noexcept {
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renderer_ = other.renderer_;
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other.renderer_ = nullptr;
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return *this;
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}
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SDL_Renderer* Renderer::Get() const {
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return renderer_;
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}
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void Renderer::Present() {
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SDL_RenderPresent(renderer_);
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}
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void Renderer::Clear() {
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if (SDL_RenderClear(renderer_) != 0)
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throw Exception("SDL_RenderClear failed");
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}
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void Renderer::GetInfo(SDL_RendererInfo* info) {
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if (SDL_GetRendererInfo(renderer_, info) != 0)
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throw Exception("SDL_GetRendererInfo failed");
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}
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void Renderer::Copy(Texture& texture, const Rect& srcrect, const Rect& dstrect) {
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if (SDL_RenderCopy(renderer_, texture.Get(), srcrect.Get(), dstrect.Get()) != 0)
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throw Exception("SDL_RenderCopy failed");
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}
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void Renderer::Copy(Texture& texture, const Rect& srcrect, const Rect& dstrect, double angle, const Point& center, int flip) {
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if (SDL_RenderCopyEx(renderer_, texture.Get(), srcrect.Get(), dstrect.Get(), angle, center.Get(), static_cast<SDL_RendererFlip>(flip)) != 0)
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throw Exception("SDL_RenderCopyEx failed");
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}
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void Renderer::SetDrawColor(Uint8 r, Uint8 g, Uint8 b, Uint8 a) {
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if (SDL_SetRenderDrawColor(renderer_, r, g, b, a) != 0)
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throw Exception("SDL_SetRenderDrawColor failed");
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}
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void Renderer::SetTarget() {
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if (SDL_SetRenderTarget(renderer_, nullptr) != 0)
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throw Exception("SDL_SetRenderTarget failed");
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}
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void Renderer::SetTarget(Texture& texture) {
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if (SDL_SetRenderTarget(renderer_, texture.Get()) != 0)
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throw Exception("SDL_SetRenderTarget failed");
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}
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void Renderer::SetDrawBlendMode(SDL_BlendMode blendMode) {
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if (SDL_SetRenderDrawBlendMode(renderer_, blendMode) != 0)
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throw Exception("SDL_SetRenderDrawBlendMode failed");
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}
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void Renderer::DrawPoint(int x, int y) {
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if (SDL_RenderDrawPoint(renderer_, x, y) != 0)
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throw Exception("SDL_RenderDrawPoint failed");
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}
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void Renderer::DrawPoint(const Point& p) {
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if (p.IsNull())
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return;
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DrawPoint(p.GetX(), p.GetY());
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}
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void Renderer::DrawPoints(const Point* points, int count) {
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std::vector<SDL_Point> sdl_points;
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sdl_points.reserve(count);
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for (const Point* p = points; p != points + count; ++p)
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if (!p->IsNull())
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sdl_points.emplace_back(*p->Get());
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if (SDL_RenderDrawPoints(renderer_, sdl_points.data(), sdl_points.size()) != 0)
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throw Exception("SDL_RenderDrawPoints failed");
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}
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void Renderer::DrawLine(int x1, int y1, int x2, int y2) {
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if (SDL_RenderDrawLine(renderer_, x1, y1, x2, y2) != 0)
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throw Exception("SDL_RenderDrawLine failed");
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}
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void Renderer::DrawLine(const Point& p1, const Point& p2) {
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if (p1.IsNull() || p2.IsNull())
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return;
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DrawLine(p1.GetX(), p1.GetY(), p2.GetX(), p2.GetY());
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}
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void Renderer::DrawLines(const Point* points, int count) {
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std::vector<SDL_Point> sdl_points;
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sdl_points.reserve(count);
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for (const Point* p = points; p != points + count; ++p)
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if (!p->IsNull())
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sdl_points.emplace_back(*p->Get());
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if (SDL_RenderDrawLines(renderer_, sdl_points.data(), sdl_points.size()) != 0)
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throw Exception("SDL_RenderDrawLines failed");
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}
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void Renderer::DrawRect(int x1, int y1, int x2, int y2) {
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SDL_Rect rect = {x1, y1, x2 - x1 + 1, y2 - y1 + 1};
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if (SDL_RenderDrawRect(renderer_, &rect) != 0)
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throw Exception("SDL_RenderDrawRect failed");
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}
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void Renderer::DrawRect(const Point& p1, const Point& p2) {
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if (p1.IsNull() || p2.IsNull())
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return;
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DrawRect(p1.GetX(), p1.GetY(), p2.GetX(), p2.GetY());
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}
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void Renderer::DrawRect(const Rect& r) {
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if (r.IsNull())
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return;
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if (SDL_RenderDrawRect(renderer_, r.Get()) != 0)
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throw Exception("SDL_RenderDrawRect failed");
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}
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void Renderer::DrawRects(const Rect* rects, int count) {
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std::vector<SDL_Rect> sdl_rects;
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sdl_rects.reserve(count);
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for (const Rect* r = rects; r != rects + count; ++r)
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if (!r->IsNull())
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sdl_rects.emplace_back(*r->Get());
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if (SDL_RenderDrawRects(renderer_, sdl_rects.data(), sdl_rects.size()) != 0)
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throw Exception("SDL_RenderDrawRects failed");
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}
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void Renderer::FillRect(int x1, int y1, int x2, int y2) {
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SDL_Rect rect = {x1, y1, x2 - x1 + 1, y2 - y1 + 1};
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if (SDL_RenderFillRect(renderer_, &rect) != 0)
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throw Exception("SDL_RenderFillRect failed");
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}
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void Renderer::FillRect(const Point& p1, const Point& p2) {
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if (p1.IsNull() || p2.IsNull())
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return;
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FillRect(p1.GetX(), p1.GetY(), p2.GetX(), p2.GetY());
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}
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void Renderer::FillRect(const Rect& r) {
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if (r.IsNull())
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return;
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if (SDL_RenderFillRect(renderer_, r.Get()) != 0)
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throw Exception("SDL_RenderFillRect failed");
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}
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void Renderer::FillRects(const Rect* rects, int count) {
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std::vector<SDL_Rect> sdl_rects;
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sdl_rects.reserve(count);
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for (const Rect* r = rects; r != rects + count; ++r)
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if (!r->IsNull())
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sdl_rects.emplace_back(*r->Get());
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if (SDL_RenderFillRects(renderer_, sdl_rects.data(), sdl_rects.size()) != 0)
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throw Exception("SDL_RenderFillRects failed");
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}
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void Renderer::ReadPixels(const Rect& rect, Uint32 format, void* pixels, int pitch) {
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if (SDL_RenderReadPixels(renderer_, rect.Get(), format, pixels, pitch) != 0)
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throw Exception("SDL_RenderReadPixels failed");
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}
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void Renderer::SetClipRect(const Rect& rect) {
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if (SDL_RenderSetClipRect(renderer_, rect.Get()) != 0)
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throw Exception("SDL_RenderSetClipRect failed");
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}
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void Renderer::SetLogicalSize(int w, int h) {
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if (SDL_RenderSetLogicalSize(renderer_, w, h) != 0)
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throw Exception("SDL_RenderSetLogicalSize failed");
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}
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void Renderer::SetScale(float scaleX, float scaleY) {
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if (SDL_RenderSetScale(renderer_, scaleX, scaleY) != 0)
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throw Exception("SDL_RenderSetScale failed");
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}
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void Renderer::SetViewport(const Rect& rect) {
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if (SDL_RenderSetViewport(renderer_, rect.Get()) != 0)
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throw Exception("SDL_RenderSetViewport failed");
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}
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bool Renderer::TargetSupported() {
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return SDL_RenderTargetSupported(renderer_) == SDL_TRUE;
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}
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}
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