49 lines
1.3 KiB
C++
49 lines
1.3 KiB
C++
// Copyright (C) 2015 Jérôme Leclercq
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// This file is part of the "Nazara Engine - Graphics module"
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// For conditions of distribution and use, see copyright notice in Config.hpp
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#include <Nazara/Graphics/GuillotineTextureAtlas.hpp>
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#include <Nazara/Renderer/Renderer.hpp>
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#include <Nazara/Renderer/Texture.hpp>
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#include <Nazara/Graphics/Debug.hpp>
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nzUInt32 NzGuillotineTextureAtlas::GetStorage() const
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{
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return nzDataStorage_Hardware;
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}
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NzAbstractImage* NzGuillotineTextureAtlas::ResizeImage(NzAbstractImage* oldImage, const NzVector2ui& size) const
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{
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std::unique_ptr<NzTexture> newTexture(new NzTexture);
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if (newTexture->Create(nzImageType_2D, nzPixelFormat_A8, size.x, size.y, 1))
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{
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if (oldImage)
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{
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NzTexture* oldTexture = static_cast<NzTexture*>(oldImage);
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// Copie des anciennes données
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///TODO: Copie de texture à texture
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NzImage image;
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if (!oldTexture->Download(&image))
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{
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NazaraError("Failed to download old texture");
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return nullptr;
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}
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if (!newTexture->Update(image, NzRectui(0, 0, image.GetWidth(), image.GetHeight())))
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{
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NazaraError("Failed to update texture");
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return nullptr;
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}
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}
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return newTexture.release();
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}
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else
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{
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// Si on arrive ici c'est que la taille demandée est trop grande pour la carte graphique
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// ou que nous manquons de mémoire
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return nullptr;
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}
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}
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