mirror of
https://github.com/libSDL2pp/libSDL2pp.git
synced 2025-08-04 11:25:58 -04:00
6d0213810b
Remove "valid" flag from Rect and Point, derive them directly from SDL_Rect and SDL_Point structures, simplify logic. Now x/y/w/h member variables are directly accessible and Rect/Point may be passed as SDL_Rect/SDL_Point via pointer or reference. Change all cases where Null Rects and Points were used to Optional. invalid state related functions like Null(), IsNull() and Get() are now deprecated but are not removed yet for compatibility sake.
134 lines
3.7 KiB
C++
134 lines
3.7 KiB
C++
/*
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libSDL2pp - C++11 bindings/wrapper for SDL2
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Copyright (C) 2013-2014 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 <utility>
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#include <SDL2pp/Config.hh>
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#include <SDL2/SDL_render.h>
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#ifdef SDL2PP_WITH_IMAGE
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# include <SDL2/SDL_image.h>
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#endif
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#include <SDL2pp/Texture.hh>
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#include <SDL2pp/Config.hh>
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#include <SDL2pp/Renderer.hh>
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#include <SDL2pp/Exception.hh>
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#include <SDL2pp/Rect.hh>
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#ifdef SDL2PP_WITH_IMAGE
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# include <SDL2pp/RWops.hh>
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#endif
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namespace SDL2pp {
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Texture::Texture(Renderer& renderer, Uint32 format, int access, int w, int h) {
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if ((texture_ = SDL_CreateTexture(renderer.Get(), format, access, w, h)) == nullptr)
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throw Exception("SDL_CreateTexture failed");
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}
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#ifdef SDL2PP_WITH_IMAGE
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Texture::Texture(Renderer& renderer, RWops& rwops) {
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texture_ = IMG_LoadTexture_RW(renderer.Get(), rwops.Get(), 0);
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}
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Texture::Texture(Renderer& renderer, const std::string& path) {
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RWops rwops = RWops::FromFile(path);
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texture_ = IMG_LoadTexture_RW(renderer.Get(), rwops.Get(), 0);
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}
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#endif
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Texture::~Texture() {
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if (texture_ != nullptr)
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SDL_DestroyTexture(texture_);
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}
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Texture::Texture(Texture&& other) noexcept : texture_(other.texture_) {
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other.texture_ = nullptr;
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}
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Texture& Texture::operator=(Texture&& other) noexcept {
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if (&other == this)
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return *this;
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if (texture_ != nullptr)
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SDL_DestroyTexture(texture_);
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texture_ = other.texture_;
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other.texture_ = nullptr;
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return *this;
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}
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SDL_Texture* Texture::Get() const {
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return texture_;
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}
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void Texture::Update(const Optional<Rect>& rect, const void* pixels, int pitch) {
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if (SDL_UpdateTexture(texture_, rect ? &*rect : nullptr, pixels, pitch) != 0)
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throw Exception("SDL_UpdateTexture failed");
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}
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void Texture::SetBlendMode(SDL_BlendMode blendMode) {
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if (SDL_SetTextureBlendMode(texture_, blendMode) != 0)
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throw Exception("SDL_SetTextureBlendMode failed");
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}
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void Texture::SetAlphaMod(Uint8 alpha) {
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if (SDL_SetTextureAlphaMod(texture_, alpha) != 0)
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throw Exception("SDL_SetTextureAlphaMod failed");
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}
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void Texture::SetColorMod(Uint8 r, Uint8 g, Uint8 b) {
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if (SDL_SetTextureColorMod(texture_, r, g, b) != 0)
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throw Exception("SDL_SetTextureColorMod failed");
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}
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Texture::LockHandle Texture::Lock(const Optional<Rect>& rect) {
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return LockHandle(this, rect);
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}
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Uint32 Texture::GetFormat() const {
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Uint32 format;
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if (SDL_QueryTexture(texture_, &format, nullptr, nullptr, nullptr) != 0)
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throw Exception("SDL_QueryTexture failed");
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return format;
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}
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int Texture::GetAccess() const {
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int access;
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if (SDL_QueryTexture(texture_, nullptr, &access, nullptr, nullptr) != 0)
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throw Exception("SDL_QueryTexture failed");
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return access;
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}
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int Texture::GetWidth() const {
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int w;
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if (SDL_QueryTexture(texture_, nullptr, nullptr, &w, nullptr) != 0)
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throw Exception("SDL_QueryTexture failed");
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return w;
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}
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int Texture::GetHeight() const {
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int h;
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if (SDL_QueryTexture(texture_, nullptr, nullptr, nullptr, &h) != 0)
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throw Exception("SDL_QueryTexture failed");
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return h;
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}
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}
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