1478 lines
38 KiB
C++
1478 lines
38 KiB
C++
// Copyright (C) 2014 Jérôme Leclercq
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// This file is part of the "Nazara Engine - Utility module"
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// For conditions of distribution and use, see copyright notice in Config.hpp
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#include <Nazara/Utility/Image.hpp>
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#include <Nazara/Core/Error.hpp>
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#include <Nazara/Utility/Config.hpp>
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#include <cmath>
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#include <memory>
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#include <stdexcept>
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#include <Nazara/Utility/Debug.hpp>
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///TODO: Rajouter des warnings (Formats compressés avec les méthodes Copy/Update, tests taille dans Copy)
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///TODO: Rendre les méthodes exception-safe (Virer toute cette merde de calcul de pointeurs, faire usage du RAII)
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///FIXME: Gérer correctement les formats utilisant moins d'un octet par pixel
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namespace
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{
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inline unsigned int GetLevelSize(unsigned int size, nzUInt8 level)
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{
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if (size == 0) // Possible dans le cas d'une image invalide
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return 0;
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return std::max(size >> level, 1U);
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}
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inline nzUInt8* GetPixelPtr(nzUInt8* base, nzUInt8 bpp, unsigned int x, unsigned int y, unsigned int z, unsigned int width, unsigned int height)
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{
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return &base[(width*(height*z + y) + x)*bpp];
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}
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}
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bool NzImageParams::IsValid() const
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{
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return true; // Rien à vérifier
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}
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NzImage::NzImage() :
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m_sharedImage(&emptyImage)
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{
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}
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NzImage::NzImage(nzImageType type, nzPixelFormat format, unsigned int width, unsigned int height, unsigned int depth, nzUInt8 levelCount) :
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m_sharedImage(&emptyImage)
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{
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Create(type, format, width, height, depth, levelCount);
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#ifdef NAZARA_DEBUG
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if (!m_sharedImage)
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{
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NazaraError("Failed to create image");
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throw std::runtime_error("Constructor failed");
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}
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#endif
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}
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NzImage::NzImage(const NzImage& image) :
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NzResource(),
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m_sharedImage(image.m_sharedImage)
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{
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if (m_sharedImage != &emptyImage)
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m_sharedImage->refCount++;
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}
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NzImage::NzImage(NzImage&& image) noexcept :
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m_sharedImage(image.m_sharedImage)
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{
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image.m_sharedImage = &emptyImage;
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}
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NzImage::NzImage(SharedImage* sharedImage) :
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m_sharedImage(sharedImage)
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{
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}
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NzImage::~NzImage()
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{
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Destroy();
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}
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bool NzImage::Convert(nzPixelFormat format)
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{
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#if NAZARA_UTILITY_SAFE
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if (m_sharedImage == &emptyImage)
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{
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NazaraError("Image must be valid");
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return false;
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}
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if (!NzPixelFormat::IsValid(format))
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{
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NazaraError("Invalid pixel format");
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return false;
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}
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if (!NzPixelFormat::IsConversionSupported(m_sharedImage->format, format))
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{
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NazaraError("Conversion from " + NzPixelFormat::ToString(m_sharedImage->format) + " to " + NzPixelFormat::ToString(format) + " is not supported");
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return false;
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}
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#endif
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if (format == m_sharedImage->format)
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return true;
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nzUInt8** levels = new nzUInt8*[m_sharedImage->levelCount];
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unsigned int width = m_sharedImage->width;
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unsigned int height = m_sharedImage->height;
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// Les images 3D et cubemaps sont stockés de la même façon
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unsigned int depth = (m_sharedImage->type == nzImageType_Cubemap) ? 6 : m_sharedImage->depth;
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for (unsigned int i = 0; i < m_sharedImage->levelCount; ++i)
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{
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unsigned int pixelsPerFace = width*height;
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nzUInt8* face = new nzUInt8[pixelsPerFace*depth*NzPixelFormat::GetBytesPerPixel(format)];
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nzUInt8* ptr = face;
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nzUInt8* pixels = m_sharedImage->pixels[i];
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unsigned int srcStride = pixelsPerFace * NzPixelFormat::GetBytesPerPixel(m_sharedImage->format);
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unsigned int dstStride = pixelsPerFace * NzPixelFormat::GetBytesPerPixel(format);
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for (unsigned int d = 0; d < depth; ++d)
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{
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if (!NzPixelFormat::Convert(m_sharedImage->format, format, pixels, &pixels[srcStride], ptr))
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{
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NazaraError("Failed to convert image");
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// Nettoyage de la mémoire
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delete[] face; // Permet une optimisation de boucle (GCC)
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for (unsigned int j = 0; j < i; ++j)
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delete[] levels[j];
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delete[] levels;
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return false;
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}
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pixels += srcStride;
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ptr += dstStride;
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}
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levels[i] = face;
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if (width > 1)
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width >>= 1;
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if (height > 1)
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height >>= 1;
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if (depth > 1 && m_sharedImage->type != nzImageType_Cubemap)
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depth >>= 1;
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}
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SharedImage* newImage = new SharedImage(1, m_sharedImage->type, format, m_sharedImage->levelCount, levels, m_sharedImage->width, m_sharedImage->height, m_sharedImage->depth);
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ReleaseImage();
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m_sharedImage = newImage;
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return true;
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}
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void NzImage::Copy(const NzImage& source, const NzBoxui& srcBox, const NzVector3ui& dstPos)
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{
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#if NAZARA_UTILITY_SAFE
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if (m_sharedImage == &emptyImage)
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{
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NazaraError("Image must be valid");
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return;
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}
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if (!source.IsValid())
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{
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NazaraError("Source image must be valid");
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return;
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}
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if (source.GetFormat() != m_sharedImage->format)
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{
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NazaraError("Source image format does not match destination image format");
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return;
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}
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#endif
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const nzUInt8* srcPtr = source.GetConstPixels(srcBox.x, srcBox.y, srcBox.z);
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#if NAZARA_UTILITY_SAFE
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if (!srcPtr)
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{
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NazaraError("Failed to access pixels");
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return;
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}
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#endif
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nzUInt8 bpp = NzPixelFormat::GetBytesPerPixel(m_sharedImage->format);
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nzUInt8* dstPtr = GetPixelPtr(m_sharedImage->pixels[0], bpp, dstPos.x, dstPos.y, dstPos.z, m_sharedImage->width, m_sharedImage->height);
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Copy(dstPtr, srcPtr, bpp, srcBox.width, srcBox.height, srcBox.depth, m_sharedImage->width, m_sharedImage->height, source.GetWidth(), source.GetHeight());
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}
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bool NzImage::Create(nzImageType type, nzPixelFormat format, unsigned int width, unsigned int height, unsigned int depth, nzUInt8 levelCount)
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{
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Destroy();
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#if NAZARA_UTILITY_SAFE
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if (!NzPixelFormat::IsValid(format))
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{
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NazaraError("Invalid pixel format");
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return false;
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}
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if (width == 0)
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{
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NazaraError("Width must be at least 1 (0)");
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return false;
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}
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if (height == 0)
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{
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NazaraError("Height must be at least 1 (0)");
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return false;
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}
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if (depth == 0)
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{
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NazaraError("Depth must be at least 1 (0)");
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return false;
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}
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switch (type)
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{
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case nzImageType_1D:
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if (height > 1)
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{
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NazaraError("1D textures must be 1 tall");
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return false;
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}
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if (depth > 1)
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{
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NazaraError("1D textures must be 1 deep");
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return false;
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}
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break;
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case nzImageType_1D_Array:
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case nzImageType_2D:
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if (depth > 1)
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{
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NazaraError("2D textures must be 1 deep");
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return false;
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}
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break;
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case nzImageType_2D_Array:
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case nzImageType_3D:
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break;
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case nzImageType_Cubemap:
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if (depth > 1)
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{
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NazaraError("Cubemaps must be 1 deep");
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return false;
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}
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if (width != height)
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{
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NazaraError("Cubemaps must have square dimensions");
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return false;
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}
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break;
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default:
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NazaraInternalError("Image type not handled");
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return false;
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}
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#endif
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levelCount = std::min(levelCount, GetMaxLevel(type, width, height, depth));
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nzUInt8** levels = new nzUInt8*[levelCount];
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unsigned int w = width;
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unsigned int h = height;
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unsigned int d = (type == nzImageType_Cubemap) ? 6 : depth;
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for (unsigned int i = 0; i < levelCount; ++i)
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{
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// Cette allocation est protégée car sa taille dépend directement de paramètres utilisateurs
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try
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{
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levels[i] = new nzUInt8[w * h * d * NzPixelFormat::GetBytesPerPixel(format)];
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if (w > 1)
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w >>= 1;
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if (h > 1)
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h >>= 1;
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if (d > 1 && type != nzImageType_Cubemap)
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d >>= 1;
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}
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catch (const std::exception& e)
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{
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NazaraError("Failed to allocate image's level " + NzString::Number(i) + " (" + NzString(e.what()) + ')');
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// Nettoyage
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delete[] levels[i]; // Permet une optimisation de boucle (GCC)
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for (unsigned int j = 0; j < i; ++j)
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delete[] levels[j];
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delete[] levels;
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return false;
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}
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}
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m_sharedImage = new SharedImage(1, type, format, levelCount, levels, width, height, depth);
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NotifyCreated();
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return true;
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}
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void NzImage::Destroy()
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{
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if (m_sharedImage != &emptyImage)
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{
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NotifyDestroy();
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ReleaseImage();
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}
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}
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bool NzImage::Fill(const NzColor& color)
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{
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#if NAZARA_UTILITY_SAFE
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if (m_sharedImage == &emptyImage)
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{
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NazaraError("Image must be valid");
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return false;
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}
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if (NzPixelFormat::IsCompressed(m_sharedImage->format))
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{
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NazaraError("Cannot access pixels from compressed image");
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return false;
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}
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#endif
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nzUInt8 bpp = NzPixelFormat::GetBytesPerPixel(m_sharedImage->format);
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std::unique_ptr<nzUInt8[]> colorBuffer(new nzUInt8[bpp]);
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if (!NzPixelFormat::Convert(nzPixelFormat_RGBA8, m_sharedImage->format, &color.r, colorBuffer.get()))
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{
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NazaraError("Failed to convert RGBA8 to " + NzPixelFormat::ToString(m_sharedImage->format));
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return false;
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}
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nzUInt8** levels = new nzUInt8*[m_sharedImage->levelCount];
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unsigned int width = m_sharedImage->width;
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unsigned int height = m_sharedImage->height;
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// Les images 3D et cubemaps sont stockés de la même façon
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unsigned int depth = (m_sharedImage->type == nzImageType_Cubemap) ? 6 : m_sharedImage->depth;
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for (unsigned int i = 0; i < m_sharedImage->levelCount; ++i)
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{
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unsigned int size = width*height*depth*bpp;
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nzUInt8* face = new nzUInt8[size];
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nzUInt8* ptr = face;
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nzUInt8* end = &ptr[size];
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while (ptr < end)
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{
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std::memcpy(ptr, colorBuffer.get(), bpp);
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ptr += bpp;
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}
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levels[i] = face;
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if (width > 1U)
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width >>= 1;
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if (height > 1U)
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height >>= 1;
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if (depth > 1U && m_sharedImage->type != nzImageType_Cubemap)
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depth >>= 1;
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}
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SharedImage* newImage = new SharedImage(1, m_sharedImage->type, m_sharedImage->format, m_sharedImage->levelCount, levels, m_sharedImage->width, m_sharedImage->height, m_sharedImage->depth);
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ReleaseImage();
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m_sharedImage = newImage;
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return true;
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}
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bool NzImage::Fill(const NzColor& color, const NzBoxui& box)
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{
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#if NAZARA_UTILITY_SAFE
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if (m_sharedImage == &emptyImage)
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{
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NazaraError("Image must be valid");
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return false;
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}
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if (!box.IsValid())
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{
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NazaraError("Invalid rectangle");
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return false;
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}
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if (box.x+box.width > m_sharedImage->width || box.y+box.height > m_sharedImage->height || box.z+box.depth > m_sharedImage->depth)
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{
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NazaraError("Box dimensions are out of bounds");
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return false;
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}
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#endif
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EnsureOwnership();
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nzUInt8 bpp = NzPixelFormat::GetBytesPerPixel(m_sharedImage->format);
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std::unique_ptr<nzUInt8[]> colorBuffer(new nzUInt8[bpp]);
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if (!NzPixelFormat::Convert(nzPixelFormat_RGBA8, m_sharedImage->format, &color.r, colorBuffer.get()))
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{
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NazaraError("Failed to convert RGBA8 to " + NzPixelFormat::ToString(m_sharedImage->format));
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return false;
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}
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///FIXME: L'algorithme a du mal avec un bpp non multiple de 2
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nzUInt8* dstPixels = GetPixelPtr(m_sharedImage->pixels[0], bpp, box.x, box.y, box.z, m_sharedImage->width, m_sharedImage->height);
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unsigned int srcStride = box.width * bpp;
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unsigned int dstStride = m_sharedImage->width * bpp;
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unsigned int faceSize = dstStride * m_sharedImage->height;
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for (unsigned int z = 0; z < box.depth; ++z)
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{
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nzUInt8* facePixels = dstPixels;
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for (unsigned int y = 0; y < box.height; ++y)
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{
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nzUInt8* start = facePixels;
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nzUInt8* end = facePixels + srcStride;
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while (start < end)
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{
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std::memcpy(start, colorBuffer.get(), bpp);
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start += bpp;
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}
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facePixels += dstStride;
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}
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dstPixels += faceSize;
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}
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return true;
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}
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bool NzImage::Fill(const NzColor& color, const NzRectui& rect, unsigned int z)
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{
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#if NAZARA_UTILITY_SAFE
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if (m_sharedImage == &emptyImage)
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{
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NazaraError("Image must be valid");
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return false;
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}
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if (!rect.IsValid())
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{
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NazaraError("Invalid rectangle");
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return false;
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}
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if (rect.x + rect.width > m_sharedImage->width || rect.y + rect.height > m_sharedImage->height)
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{
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NazaraError("Rectangle dimensions are out of bounds");
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return false;
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}
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unsigned int depth = (m_sharedImage->type == nzImageType_Cubemap) ? 6 : m_sharedImage->depth;
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if (z >= depth)
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{
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NazaraError("Z value exceeds depth (" + NzString::Number(z) + " >= " + NzString::Number(depth) + ')');
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return false;
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}
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#endif
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EnsureOwnership();
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nzUInt8 bpp = NzPixelFormat::GetBytesPerPixel(m_sharedImage->format);
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std::unique_ptr<nzUInt8[]> colorBuffer(new nzUInt8[bpp]);
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if (!NzPixelFormat::Convert(nzPixelFormat_RGBA8, m_sharedImage->format, &color.r, colorBuffer.get()))
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{
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NazaraError("Failed to convert RGBA8 to " + NzPixelFormat::ToString(m_sharedImage->format));
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return false;
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}
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///FIXME: L'algorithme a du mal avec un bpp non multiple de 2
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nzUInt8* dstPixels = GetPixelPtr(m_sharedImage->pixels[0], bpp, rect.x, rect.y, z, m_sharedImage->width, m_sharedImage->height);
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unsigned int srcStride = rect.width * bpp;
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unsigned int dstStride = m_sharedImage->width * bpp;
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for (unsigned int y = 0; y < rect.height; ++y)
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{
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nzUInt8* start = dstPixels;
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nzUInt8* end = dstPixels + srcStride;
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while (start < end)
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{
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std::memcpy(start, colorBuffer.get(), bpp);
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start += bpp;
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}
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dstPixels += dstStride;
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}
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return true;
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}
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bool NzImage::FlipHorizontally()
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{
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#if NAZARA_UTILITY_SAFE
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if (m_sharedImage == &emptyImage)
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{
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NazaraError("Image must be valid");
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return false;
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}
|
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#endif
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|
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EnsureOwnership();
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unsigned int width = m_sharedImage->width;
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unsigned int height = m_sharedImage->height;
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unsigned int depth = (m_sharedImage->type == nzImageType_Cubemap) ? 6 : m_sharedImage->depth;
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for (unsigned int level = 0; level < m_sharedImage->levelCount; ++level)
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{
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if (!NzPixelFormat::Flip(nzPixelFlipping_Horizontally, m_sharedImage->format, width, height, depth, m_sharedImage->pixels[level], m_sharedImage->pixels[level]))
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{
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NazaraError("Failed to flip image");
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return false;
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}
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|
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if (width > 1U)
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width >>= 1;
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|
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if (height > 1U)
|
|
height >>= 1;
|
|
|
|
if (depth > 1U && m_sharedImage->type != nzImageType_Cubemap)
|
|
depth >>= 1;
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
bool NzImage::FlipVertically()
|
|
{
|
|
#if NAZARA_UTILITY_SAFE
|
|
if (m_sharedImage == &emptyImage)
|
|
{
|
|
NazaraError("Image must be valid");
|
|
return false;
|
|
}
|
|
|
|
if (NzPixelFormat::IsCompressed(m_sharedImage->format))
|
|
{
|
|
NazaraError("Cannot flip compressed image");
|
|
return false;
|
|
}
|
|
#endif
|
|
|
|
EnsureOwnership();
|
|
|
|
unsigned int width = m_sharedImage->width;
|
|
unsigned int height = m_sharedImage->height;
|
|
unsigned int depth = (m_sharedImage->type == nzImageType_Cubemap) ? 6 : m_sharedImage->depth;
|
|
for (unsigned int level = 0; level < m_sharedImage->levelCount; ++level)
|
|
{
|
|
if (!NzPixelFormat::Flip(nzPixelFlipping_Vertically, m_sharedImage->format, width, height, depth, m_sharedImage->pixels[level], m_sharedImage->pixels[level]))
|
|
{
|
|
NazaraError("Failed to flip image");
|
|
return false;
|
|
}
|
|
|
|
if (width > 1U)
|
|
width >>= 1;
|
|
|
|
if (height > 1U)
|
|
height >>= 1;
|
|
|
|
if (depth > 1U && m_sharedImage->type != nzImageType_Cubemap)
|
|
depth >>= 1;
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
nzUInt8 NzImage::GetBytesPerPixel() const
|
|
{
|
|
return NzPixelFormat::GetBytesPerPixel(m_sharedImage->format);
|
|
}
|
|
|
|
const nzUInt8* NzImage::GetConstPixels(unsigned int x, unsigned int y, unsigned int z, nzUInt8 level) const
|
|
{
|
|
#if NAZARA_UTILITY_SAFE
|
|
if (m_sharedImage == &emptyImage)
|
|
{
|
|
NazaraError("Image must be valid");
|
|
return nullptr;
|
|
}
|
|
|
|
if (level >= m_sharedImage->levelCount)
|
|
{
|
|
NazaraError("Level out of bounds (" + NzString::Number(level) + " >= " + NzString::Number(m_sharedImage->levelCount) + ')');
|
|
return nullptr;
|
|
}
|
|
#endif
|
|
|
|
unsigned int width = GetLevelSize(m_sharedImage->width, level);
|
|
#if NAZARA_UTILITY_SAFE
|
|
if (x >= width)
|
|
{
|
|
NazaraError("X value exceeds width (" + NzString::Number(x) + " >= " + NzString::Number(width) + ')');
|
|
return nullptr;
|
|
}
|
|
#endif
|
|
|
|
unsigned int height = GetLevelSize(m_sharedImage->height, level);
|
|
#if NAZARA_UTILITY_SAFE
|
|
if (y >= height)
|
|
{
|
|
NazaraError("Y value exceeds height (" + NzString::Number(y) + " >= " + NzString::Number(height) + ')');
|
|
return nullptr;
|
|
}
|
|
|
|
unsigned int depth = (m_sharedImage->type == nzImageType_Cubemap) ? 6 : GetLevelSize(m_sharedImage->depth, level);
|
|
if (z >= depth)
|
|
{
|
|
NazaraError("Z value exceeds depth (" + NzString::Number(z) + " >= " + NzString::Number(depth) + ')');
|
|
return nullptr;
|
|
}
|
|
#endif
|
|
|
|
return GetPixelPtr(m_sharedImage->pixels[level], NzPixelFormat::GetBytesPerPixel(m_sharedImage->format), x, y, z, width, height);
|
|
}
|
|
|
|
unsigned int NzImage::GetDepth(nzUInt8 level) const
|
|
{
|
|
#if NAZARA_UTILITY_SAFE
|
|
if (level >= m_sharedImage->levelCount)
|
|
{
|
|
NazaraError("Level out of bounds (" + NzString::Number(level) + " >= " + NzString::Number(m_sharedImage->levelCount) + ')');
|
|
return 0;
|
|
}
|
|
#endif
|
|
|
|
return GetLevelSize(m_sharedImage->depth, level);
|
|
}
|
|
|
|
nzPixelFormat NzImage::GetFormat() const
|
|
{
|
|
return m_sharedImage->format;
|
|
}
|
|
|
|
unsigned int NzImage::GetHeight(nzUInt8 level) const
|
|
{
|
|
#if NAZARA_UTILITY_SAFE
|
|
if (level >= m_sharedImage->levelCount)
|
|
{
|
|
NazaraError("Level out of bounds (" + NzString::Number(level) + " >= " + NzString::Number(m_sharedImage->levelCount) + ')');
|
|
return 0;
|
|
}
|
|
#endif
|
|
|
|
return GetLevelSize(m_sharedImage->height, level);
|
|
}
|
|
|
|
nzUInt8 NzImage::GetLevelCount() const
|
|
{
|
|
return m_sharedImage->levelCount;
|
|
}
|
|
|
|
nzUInt8 NzImage::GetMaxLevel() const
|
|
{
|
|
return GetMaxLevel(m_sharedImage->type, m_sharedImage->width, m_sharedImage->height, m_sharedImage->depth);
|
|
}
|
|
|
|
unsigned int NzImage::GetMemoryUsage() const
|
|
{
|
|
unsigned int width = m_sharedImage->width;
|
|
unsigned int height = m_sharedImage->height;
|
|
unsigned int depth = m_sharedImage->depth;
|
|
|
|
unsigned int size = 0;
|
|
for (unsigned int i = 0; i < m_sharedImage->levelCount; ++i)
|
|
{
|
|
size += width * height * depth;
|
|
|
|
if (width > 1)
|
|
width >>= 1;
|
|
|
|
if (height > 1)
|
|
height >>= 1;
|
|
|
|
if (depth > 1)
|
|
depth >>= 1;
|
|
}
|
|
|
|
if (m_sharedImage->type == nzImageType_Cubemap)
|
|
size *= 6;
|
|
|
|
return size * NzPixelFormat::GetBytesPerPixel(m_sharedImage->format);
|
|
}
|
|
|
|
unsigned int NzImage::GetMemoryUsage(nzUInt8 level) const
|
|
{
|
|
#if NAZARA_UTILITY_SAFE
|
|
if (level >= m_sharedImage->levelCount)
|
|
{
|
|
NazaraError("Level out of bounds (" + NzString::Number(level) + " >= " + NzString::Number(m_sharedImage->levelCount) + ')');
|
|
return 0;
|
|
}
|
|
#endif
|
|
|
|
return (GetLevelSize(m_sharedImage->width, level)) *
|
|
(GetLevelSize(m_sharedImage->height, level)) *
|
|
((m_sharedImage->type == nzImageType_Cubemap) ? 6 : GetLevelSize(m_sharedImage->depth, level)) *
|
|
NzPixelFormat::GetBytesPerPixel(m_sharedImage->format);
|
|
}
|
|
|
|
NzColor NzImage::GetPixelColor(unsigned int x, unsigned int y, unsigned int z) const
|
|
{
|
|
#if NAZARA_UTILITY_SAFE
|
|
if (m_sharedImage == &emptyImage)
|
|
{
|
|
NazaraError("Image must be valid");
|
|
return NzColor();
|
|
}
|
|
|
|
if (NzPixelFormat::IsCompressed(m_sharedImage->format))
|
|
{
|
|
NazaraError("Cannot access pixels from compressed image");
|
|
return NzColor();
|
|
}
|
|
|
|
if (x >= m_sharedImage->width)
|
|
{
|
|
NazaraError("X value exceeds width (" + NzString::Number(x) + " >= " + NzString::Number(m_sharedImage->width) + ')');
|
|
return NzColor();
|
|
}
|
|
|
|
if (y >= m_sharedImage->height)
|
|
{
|
|
NazaraError("Y value exceeds height (" + NzString::Number(y) + " >= " + NzString::Number(m_sharedImage->height) + ')');
|
|
return NzColor();
|
|
}
|
|
|
|
unsigned int depth = (m_sharedImage->type == nzImageType_Cubemap) ? 6 : m_sharedImage->depth;
|
|
if (z >= depth)
|
|
{
|
|
NazaraError("Z value exceeds depth (" + NzString::Number(z) + " >= " + NzString::Number(depth) + ')');
|
|
return NzColor();
|
|
}
|
|
#endif
|
|
|
|
const nzUInt8* pixel = GetPixelPtr(m_sharedImage->pixels[0], NzPixelFormat::GetBytesPerPixel(m_sharedImage->format), x, y, z, m_sharedImage->width, m_sharedImage->height);
|
|
|
|
NzColor color;
|
|
if (!NzPixelFormat::Convert(m_sharedImage->format, nzPixelFormat_RGBA8, pixel, &color.r))
|
|
NazaraError("Failed to convert image's format to RGBA8");
|
|
|
|
return color;
|
|
}
|
|
|
|
nzUInt8* NzImage::GetPixels(unsigned int x, unsigned int y, unsigned int z, nzUInt8 level)
|
|
{
|
|
#if NAZARA_UTILITY_SAFE
|
|
if (m_sharedImage == &emptyImage)
|
|
{
|
|
NazaraError("Image must be valid");
|
|
return nullptr;
|
|
}
|
|
|
|
if (level >= m_sharedImage->levelCount)
|
|
{
|
|
NazaraError("Level out of bounds (" + NzString::Number(level) + " >= " + NzString::Number(m_sharedImage->levelCount) + ')');
|
|
return nullptr;
|
|
}
|
|
#endif
|
|
|
|
unsigned int width = GetLevelSize(m_sharedImage->width, level);
|
|
#if NAZARA_UTILITY_SAFE
|
|
if (x >= width)
|
|
{
|
|
NazaraError("X value exceeds width (" + NzString::Number(x) + " >= " + NzString::Number(width) + ')');
|
|
return nullptr;
|
|
}
|
|
#endif
|
|
|
|
unsigned int height = GetLevelSize(m_sharedImage->height, level);
|
|
#if NAZARA_UTILITY_SAFE
|
|
if (y >= height)
|
|
{
|
|
NazaraError("Y value exceeds height (" + NzString::Number(y) + " >= " + NzString::Number(height) + ')');
|
|
return nullptr;
|
|
}
|
|
|
|
unsigned int depth = (m_sharedImage->type == nzImageType_Cubemap) ? 6 : GetLevelSize(m_sharedImage->depth, level);
|
|
if (z >= depth)
|
|
{
|
|
NazaraError("Z value exceeds depth (" + NzString::Number(z) + " >= " + NzString::Number(depth) + ')');
|
|
return nullptr;
|
|
}
|
|
|
|
if (level >= m_sharedImage->levelCount)
|
|
{
|
|
NazaraError("Level out of bounds (" + NzString::Number(level) + " >= " + NzString::Number(m_sharedImage->levelCount) + ')');
|
|
return nullptr;
|
|
}
|
|
#endif
|
|
|
|
EnsureOwnership();
|
|
|
|
return GetPixelPtr(m_sharedImage->pixels[level], NzPixelFormat::GetBytesPerPixel(m_sharedImage->format), x, y, z, width, height);
|
|
}
|
|
|
|
NzVector3ui NzImage::GetSize(nzUInt8 level) const
|
|
{
|
|
#if NAZARA_UTILITY_SAFE
|
|
if (level >= m_sharedImage->levelCount)
|
|
{
|
|
NazaraError("Level out of bounds (" + NzString::Number(level) + " >= " + NzString::Number(m_sharedImage->levelCount) + ')');
|
|
return 0;
|
|
}
|
|
#endif
|
|
|
|
return NzVector3ui(GetLevelSize(m_sharedImage->width, level), GetLevelSize(m_sharedImage->height, level), GetLevelSize(m_sharedImage->depth, level));
|
|
}
|
|
|
|
nzImageType NzImage::GetType() const
|
|
{
|
|
return m_sharedImage->type;
|
|
}
|
|
|
|
unsigned int NzImage::GetWidth(nzUInt8 level) const
|
|
{
|
|
#if NAZARA_UTILITY_SAFE
|
|
if (level >= m_sharedImage->levelCount)
|
|
{
|
|
NazaraError("Level out of bounds (" + NzString::Number(level) + " >= " + NzString::Number(m_sharedImage->levelCount) + ')');
|
|
return 0;
|
|
}
|
|
#endif
|
|
|
|
return GetLevelSize(m_sharedImage->width, level);
|
|
}
|
|
|
|
bool NzImage::IsCompressed() const
|
|
{
|
|
return NzPixelFormat::IsCompressed(m_sharedImage->format);
|
|
}
|
|
|
|
bool NzImage::IsCubemap() const
|
|
{
|
|
return m_sharedImage->type == nzImageType_Cubemap;
|
|
}
|
|
|
|
bool NzImage::IsValid() const
|
|
{
|
|
return m_sharedImage != &emptyImage;
|
|
}
|
|
|
|
bool NzImage::LoadFromFile(const NzString& filePath, const NzImageParams& params)
|
|
{
|
|
return NzImageLoader::LoadFromFile(this, filePath, params);
|
|
}
|
|
|
|
bool NzImage::LoadFromMemory(const void* data, std::size_t size, const NzImageParams& params)
|
|
{
|
|
return NzImageLoader::LoadFromMemory(this, data, size, params);
|
|
}
|
|
|
|
bool NzImage::LoadFromStream(NzInputStream& stream, const NzImageParams& params)
|
|
{
|
|
return NzImageLoader::LoadFromStream(this, stream, params);
|
|
}
|
|
|
|
// LoadArray
|
|
bool NzImage::LoadArrayFromFile(const NzString& filePath, const NzImageParams& imageParams, const NzVector2ui& atlasSize)
|
|
{
|
|
NzImage image;
|
|
if (!image.LoadFromFile(filePath, imageParams))
|
|
{
|
|
NazaraError("Failed to load image");
|
|
return false;
|
|
}
|
|
|
|
return LoadArrayFromImage(image, atlasSize);
|
|
}
|
|
|
|
bool NzImage::LoadArrayFromImage(const NzImage& image, const NzVector2ui& atlasSize)
|
|
{
|
|
#if NAZARA_UTILITY_SAFE
|
|
if (!image.IsValid())
|
|
{
|
|
NazaraError("Image must be valid");
|
|
return false;
|
|
}
|
|
|
|
if (atlasSize.x == 0)
|
|
{
|
|
NazaraError("Atlas width must be over zero");
|
|
return false;
|
|
}
|
|
|
|
if (atlasSize.y == 0)
|
|
{
|
|
NazaraError("Atlas height must be over zero");
|
|
return false;
|
|
}
|
|
#endif
|
|
|
|
nzImageType type = image.GetType();
|
|
|
|
#if NAZARA_UTILITY_SAFE
|
|
if (type != nzImageType_1D && type != nzImageType_2D)
|
|
{
|
|
NazaraError("Image type not handled (0x" + NzString::Number(type, 16) + ')');
|
|
return false;
|
|
}
|
|
#endif
|
|
|
|
NzVector2ui imageSize(image.GetWidth(), image.GetHeight());
|
|
|
|
if (imageSize.x % atlasSize.x != 0)
|
|
{
|
|
NazaraWarning("Image width is not divisible by atlas width (" + NzString::Number(imageSize.x) + " mod " + NzString::Number(atlasSize.x) + " != 0)");
|
|
}
|
|
|
|
if (imageSize.y % atlasSize.y != 0)
|
|
{
|
|
NazaraWarning("Image height is not divisible by atlas height (" + NzString::Number(imageSize.y) + " mod " + NzString::Number(atlasSize.y) + " != 0)");
|
|
}
|
|
|
|
NzVector2ui faceSize = imageSize/atlasSize;
|
|
|
|
unsigned int layerCount = atlasSize.x*atlasSize.y;
|
|
|
|
// Selon le type de l'image de base, on va créer un array d'images 2D ou 1D
|
|
if (type == nzImageType_2D)
|
|
Create(nzImageType_2D_Array, image.GetFormat(), faceSize.x, faceSize.y, layerCount);
|
|
else
|
|
Create(nzImageType_1D_Array, image.GetFormat(), faceSize.x, layerCount);
|
|
|
|
unsigned int layer = 0;
|
|
for (unsigned int j = 0; j < atlasSize.y; ++j)
|
|
for (unsigned int i = 0; i < atlasSize.x; ++i)
|
|
Copy(image, NzRectui(i*faceSize.x, j*faceSize.y, faceSize.x, faceSize.y), NzVector3ui(0, 0, layer++));
|
|
|
|
return true;
|
|
}
|
|
|
|
bool NzImage::LoadArrayFromMemory(const void* data, std::size_t size, const NzImageParams& imageParams, const NzVector2ui& atlasSize)
|
|
{
|
|
NzImage image;
|
|
if (!image.LoadFromMemory(data, size, imageParams))
|
|
{
|
|
NazaraError("Failed to load image");
|
|
return false;
|
|
}
|
|
|
|
return LoadArrayFromImage(image, atlasSize);
|
|
}
|
|
|
|
bool NzImage::LoadArrayFromStream(NzInputStream& stream, const NzImageParams& imageParams, const NzVector2ui& atlasSize)
|
|
{
|
|
NzImage image;
|
|
if (!image.LoadFromStream(stream, imageParams))
|
|
{
|
|
NazaraError("Failed to load image");
|
|
return false;
|
|
}
|
|
|
|
return LoadArrayFromImage(image, atlasSize);
|
|
}
|
|
|
|
bool NzImage::LoadCubemapFromFile(const NzString& filePath, const NzImageParams& imageParams, const NzCubemapParams& cubemapParams)
|
|
{
|
|
NzImage image;
|
|
if (!image.LoadFromFile(filePath, imageParams))
|
|
{
|
|
NazaraError("Failed to load image");
|
|
return false;
|
|
}
|
|
|
|
return LoadCubemapFromImage(image, cubemapParams);
|
|
}
|
|
|
|
bool NzImage::LoadCubemapFromImage(const NzImage& image, const NzCubemapParams& params)
|
|
{
|
|
#if NAZARA_UTILITY_SAFE
|
|
if (!image.IsValid())
|
|
{
|
|
NazaraError("Image must be valid");
|
|
return false;
|
|
}
|
|
|
|
nzImageType type = image.GetType();
|
|
if (type != nzImageType_2D)
|
|
{
|
|
NazaraError("Image type not handled (0x" + NzString::Number(type, 16) + ')');
|
|
return false;
|
|
}
|
|
#endif
|
|
|
|
unsigned int width = image.GetWidth();
|
|
unsigned int height = image.GetHeight();
|
|
unsigned int faceSize = (params.faceSize == 0) ? std::max(width, height)/4 : params.faceSize;
|
|
|
|
// Sans cette vérification, celles des rectangles pourrait réussir via un overflow
|
|
if (width < faceSize || height < faceSize)
|
|
{
|
|
NazaraError("Image is too small for this face size");
|
|
return false;
|
|
}
|
|
|
|
// Calcul et vérification des surfaces
|
|
unsigned limitX = width - faceSize;
|
|
unsigned limitY = height - faceSize;
|
|
|
|
NzVector2ui backPos = params.backPosition * faceSize;
|
|
if (backPos.x > limitX || backPos.y > limitY)
|
|
{
|
|
NazaraError("Back rectangle is out of image");
|
|
return false;
|
|
}
|
|
|
|
NzVector2ui downPos = params.downPosition * faceSize;
|
|
if (downPos.x > limitX || downPos.y > limitY)
|
|
{
|
|
NazaraError("Down rectangle is out of image");
|
|
return false;
|
|
}
|
|
|
|
NzVector2ui forwardPos = params.forwardPosition * faceSize;
|
|
if (forwardPos.x > limitX || forwardPos.y > limitY)
|
|
{
|
|
NazaraError("Forward rectangle is out of image");
|
|
return false;
|
|
}
|
|
|
|
NzVector2ui leftPos = params.leftPosition * faceSize;
|
|
if (leftPos.x > limitX || leftPos.y > limitY)
|
|
{
|
|
NazaraError("Left rectangle is out of image");
|
|
return false;
|
|
}
|
|
|
|
NzVector2ui rightPos = params.rightPosition * faceSize;
|
|
if (rightPos.x > limitX || rightPos.y > limitY)
|
|
{
|
|
NazaraError("Right rectangle is out of image");
|
|
return false;
|
|
}
|
|
|
|
NzVector2ui upPos = params.upPosition * faceSize;
|
|
if (upPos.x > limitX || upPos.y > limitY)
|
|
{
|
|
NazaraError("Up rectangle is out of image");
|
|
return false;
|
|
}
|
|
|
|
Create(nzImageType_Cubemap, image.GetFormat(), faceSize, faceSize);
|
|
|
|
#ifdef NAZARA_DEBUG
|
|
// Les paramètres sont valides, que Create ne fonctionne pas relèverait d'un bug
|
|
if (m_sharedImage == &emptyImage)
|
|
{
|
|
NazaraInternalError("Failed to create cubemap");
|
|
return false;
|
|
}
|
|
#endif
|
|
|
|
Copy(image, NzRectui(backPos.x, backPos.y, faceSize, faceSize), NzVector3ui(0, 0, nzCubemapFace_NegativeZ));
|
|
Copy(image, NzRectui(downPos.x, downPos.y, faceSize, faceSize), NzVector3ui(0, 0, nzCubemapFace_NegativeY));
|
|
Copy(image, NzRectui(forwardPos.x, forwardPos.y, faceSize, faceSize), NzVector3ui(0, 0, nzCubemapFace_PositiveZ));
|
|
Copy(image, NzRectui(leftPos.x, leftPos.y, faceSize, faceSize), NzVector3ui(0, 0, nzCubemapFace_NegativeX));
|
|
Copy(image, NzRectui(rightPos.x, rightPos.y, faceSize, faceSize), NzVector3ui(0, 0, nzCubemapFace_PositiveX));
|
|
Copy(image, NzRectui(upPos.x, upPos.y, faceSize, faceSize), NzVector3ui(0, 0, nzCubemapFace_PositiveY));
|
|
|
|
return true;
|
|
}
|
|
|
|
bool NzImage::LoadCubemapFromMemory(const void* data, std::size_t size, const NzImageParams& imageParams, const NzCubemapParams& cubemapParams)
|
|
{
|
|
NzImage image;
|
|
if (!image.LoadFromMemory(data, size, imageParams))
|
|
{
|
|
NazaraError("Failed to load image");
|
|
return false;
|
|
}
|
|
|
|
return LoadCubemapFromImage(image, cubemapParams);
|
|
}
|
|
|
|
bool NzImage::LoadCubemapFromStream(NzInputStream& stream, const NzImageParams& imageParams, const NzCubemapParams& cubemapParams)
|
|
{
|
|
NzImage image;
|
|
if (!image.LoadFromStream(stream, imageParams))
|
|
{
|
|
NazaraError("Failed to load image");
|
|
return false;
|
|
}
|
|
|
|
return LoadCubemapFromImage(image, cubemapParams);
|
|
}
|
|
|
|
void NzImage::SetLevelCount(nzUInt8 levelCount)
|
|
{
|
|
#if NAZARA_UTILITY_SAFE
|
|
if (m_sharedImage == &emptyImage)
|
|
{
|
|
NazaraError("Image must be valid");
|
|
return;
|
|
}
|
|
|
|
if (levelCount == 0)
|
|
{
|
|
NazaraError("Level count must be positive");
|
|
return;
|
|
}
|
|
#endif
|
|
|
|
levelCount = std::min(levelCount, GetMaxLevel());
|
|
|
|
if (m_sharedImage->levelCount == levelCount)
|
|
return;
|
|
|
|
EnsureOwnership();
|
|
|
|
nzUInt8 oldLevelCount = m_sharedImage->levelCount;
|
|
nzUInt8 maxLevelCount = std::max(levelCount, oldLevelCount);
|
|
m_sharedImage->levelCount = levelCount; // Pour faire fonctionner GetMemoryUsage
|
|
|
|
nzUInt8** pixels = new nzUInt8*[levelCount];
|
|
for (unsigned int i = 0; i < maxLevelCount; ++i)
|
|
{
|
|
if (i < oldLevelCount)
|
|
pixels[i] = m_sharedImage->pixels[i];
|
|
else if (i < levelCount)
|
|
pixels[i] = new nzUInt8[GetMemoryUsage(i)];
|
|
else
|
|
delete[] m_sharedImage->pixels[i];
|
|
}
|
|
|
|
delete[] m_sharedImage->pixels;
|
|
|
|
m_sharedImage->pixels = pixels;
|
|
}
|
|
|
|
bool NzImage::SetPixelColor(const NzColor& color, unsigned int x, unsigned int y, unsigned int z)
|
|
{
|
|
#if NAZARA_UTILITY_SAFE
|
|
if (m_sharedImage == &emptyImage)
|
|
{
|
|
NazaraError("Image must be valid");
|
|
return false;
|
|
}
|
|
|
|
if (NzPixelFormat::IsCompressed(m_sharedImage->format))
|
|
{
|
|
NazaraError("Cannot access pixels from compressed image");
|
|
return false;
|
|
}
|
|
|
|
if (x >= m_sharedImage->width)
|
|
{
|
|
NazaraError("X value exceeds width (" + NzString::Number(x) + " >= " + NzString::Number(m_sharedImage->width) + ')');
|
|
return false;
|
|
}
|
|
|
|
if (y >= m_sharedImage->height)
|
|
{
|
|
NazaraError("Y value exceeds height (" + NzString::Number(y) + " >= " + NzString::Number(m_sharedImage->height) + ')');
|
|
return false;
|
|
}
|
|
|
|
unsigned int depth = (m_sharedImage->type == nzImageType_Cubemap) ? 6 : m_sharedImage->depth;
|
|
if (z >= depth)
|
|
{
|
|
NazaraError("Z value exceeds depth (" + NzString::Number(z) + " >= " + NzString::Number(depth) + ')');
|
|
return false;
|
|
}
|
|
#endif
|
|
|
|
nzUInt8* pixel = GetPixelPtr(m_sharedImage->pixels[0], NzPixelFormat::GetBytesPerPixel(m_sharedImage->format), x, y, z, m_sharedImage->width, m_sharedImage->height);
|
|
|
|
if (!NzPixelFormat::Convert(nzPixelFormat_RGBA8, m_sharedImage->format, &color.r, pixel))
|
|
{
|
|
NazaraError("Failed to convert RGBA8 to image's format");
|
|
return false;
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
void NzImage::Update(const nzUInt8* pixels, unsigned int srcWidth, unsigned int srcHeight, nzUInt8 level)
|
|
{
|
|
#if NAZARA_UTILITY_SAFE
|
|
if (m_sharedImage == &emptyImage)
|
|
{
|
|
NazaraError("Image must be valid");
|
|
return;
|
|
}
|
|
|
|
if (!pixels)
|
|
{
|
|
NazaraError("Invalid pixel source");
|
|
return;
|
|
}
|
|
|
|
if (level >= m_sharedImage->levelCount)
|
|
{
|
|
NazaraError("Level out of bounds (" + NzString::Number(level) + " >= " + NzString::Number(m_sharedImage->levelCount) + ')');
|
|
return;
|
|
}
|
|
#endif
|
|
|
|
EnsureOwnership();
|
|
|
|
Copy(m_sharedImage->pixels[level], pixels, NzPixelFormat::GetBytesPerPixel(m_sharedImage->format),
|
|
GetLevelSize(m_sharedImage->width, level),
|
|
GetLevelSize(m_sharedImage->height, level),
|
|
GetLevelSize(m_sharedImage->depth, level),
|
|
0, 0,
|
|
srcWidth, srcHeight);
|
|
}
|
|
|
|
void NzImage::Update(const nzUInt8* pixels, const NzBoxui& box, unsigned int srcWidth, unsigned int srcHeight, nzUInt8 level)
|
|
{
|
|
#if NAZARA_UTILITY_SAFE
|
|
if (m_sharedImage == &emptyImage)
|
|
{
|
|
NazaraError("Image must be valid");
|
|
return;
|
|
}
|
|
|
|
if (!pixels)
|
|
{
|
|
NazaraError("Invalid pixel source");
|
|
return;
|
|
}
|
|
|
|
if (level >= m_sharedImage->levelCount)
|
|
{
|
|
NazaraError("Level out of bounds (" + NzString::Number(level) + " >= " + NzString::Number(m_sharedImage->levelCount) + ')');
|
|
return;
|
|
}
|
|
#endif
|
|
|
|
unsigned int width = GetLevelSize(m_sharedImage->width, level);
|
|
unsigned int height = GetLevelSize(m_sharedImage->height, level);
|
|
|
|
#if NAZARA_UTILITY_SAFE
|
|
if (!box.IsValid())
|
|
{
|
|
NazaraError("Invalid box");
|
|
return;
|
|
}
|
|
|
|
// Nous n'autorisons pas de modifier plus d'une face du cubemap à la fois (Nous prenons donc la profondeur de base)
|
|
///FIXME: Ce code n'autorise même pas la modification d'une autre face du cubemap Oo
|
|
if (box.x+box.width > width || box.y+box.height > height || box.z+box.depth > GetLevelSize(m_sharedImage->depth, level))
|
|
{
|
|
NazaraError("Box dimensions are out of bounds");
|
|
return;
|
|
}
|
|
#endif
|
|
|
|
EnsureOwnership();
|
|
|
|
nzUInt8 bpp = NzPixelFormat::GetBytesPerPixel(m_sharedImage->format);
|
|
nzUInt8* dstPixels = GetPixelPtr(m_sharedImage->pixels[level], bpp, box.x, box.y, box.z, width, height);
|
|
|
|
Copy(dstPixels, pixels, bpp,
|
|
box.width, box.height, box.depth,
|
|
width, height,
|
|
srcWidth, srcHeight);
|
|
}
|
|
|
|
void NzImage::Update(const nzUInt8* pixels, const NzRectui& rect, unsigned int z, unsigned int srcWidth, unsigned int srcHeight, nzUInt8 level)
|
|
{
|
|
///FIXME: Cette surcharge possède-t-elle la moindre utilité ? (Update(pixels, NzBoxui(rect.x, rect.y, z, rect.width, rect.height, 1), srcWidth, ..) devrait donner le même résultat
|
|
#if NAZARA_UTILITY_SAFE
|
|
if (m_sharedImage == &emptyImage)
|
|
{
|
|
NazaraError("Image must be valid");
|
|
return;
|
|
}
|
|
|
|
if (!pixels)
|
|
{
|
|
NazaraError("Invalid pixel source");
|
|
return;
|
|
}
|
|
|
|
if (!rect.IsValid())
|
|
{
|
|
NazaraError("Invalid rectangle");
|
|
return;
|
|
}
|
|
|
|
if (level >= m_sharedImage->levelCount)
|
|
{
|
|
NazaraError("Level out of bounds (" + NzString::Number(level) + " >= " + NzString::Number(m_sharedImage->levelCount) + ')');
|
|
return;
|
|
}
|
|
#endif
|
|
|
|
unsigned int width = GetLevelSize(m_sharedImage->width, level);
|
|
unsigned int height = GetLevelSize(m_sharedImage->height, level);
|
|
|
|
#if NAZARA_UTILITY_SAFE
|
|
if (rect.x+rect.width > width || rect.y+rect.height > height)
|
|
{
|
|
NazaraError("Rectangle dimensions are out of bounds");
|
|
return;
|
|
}
|
|
|
|
unsigned int depth = (m_sharedImage->type == nzImageType_Cubemap) ? 6 : GetLevelSize(m_sharedImage->depth, level);
|
|
if (z >= depth)
|
|
{
|
|
NazaraError("Z value exceeds depth (" + NzString::Number(z) + " >= " + NzString::Number(depth) + ')');
|
|
return;
|
|
}
|
|
#endif
|
|
|
|
EnsureOwnership();
|
|
|
|
nzUInt8 bpp = NzPixelFormat::GetBytesPerPixel(m_sharedImage->format);
|
|
nzUInt8* dstPixels = GetPixelPtr(m_sharedImage->pixels[level], bpp, rect.x, rect.y, z, width, height);
|
|
|
|
Copy(dstPixels, pixels, bpp,
|
|
rect.width, rect.height, 1,
|
|
width, height,
|
|
srcWidth, srcHeight);
|
|
}
|
|
|
|
NzImage& NzImage::operator=(const NzImage& image)
|
|
{
|
|
ReleaseImage();
|
|
|
|
m_sharedImage = image.m_sharedImage;
|
|
if (m_sharedImage != &emptyImage)
|
|
m_sharedImage->refCount++;
|
|
|
|
return *this;
|
|
}
|
|
|
|
NzImage& NzImage::operator=(NzImage&& image) noexcept
|
|
{
|
|
std::swap(m_sharedImage, image.m_sharedImage);
|
|
|
|
return *this;
|
|
}
|
|
|
|
void NzImage::Copy(nzUInt8* destination, const nzUInt8* source, nzUInt8 bpp, unsigned int width, unsigned int height, unsigned int depth, unsigned int dstWidth, unsigned int dstHeight, unsigned int srcWidth, unsigned int srcHeight)
|
|
{
|
|
if (dstWidth == 0)
|
|
dstWidth = width;
|
|
|
|
if (dstHeight == 0)
|
|
dstHeight = height;
|
|
|
|
if (srcWidth == 0)
|
|
srcWidth = width;
|
|
|
|
if (srcHeight == 0)
|
|
srcHeight = height;
|
|
|
|
if ((height == 1 || (dstWidth == width && srcWidth == width)) && (depth == 1 || (dstHeight == height && srcHeight == height)))
|
|
std::memcpy(destination, source, width*height*depth*bpp);
|
|
else
|
|
{
|
|
unsigned int lineStride = width * bpp;
|
|
unsigned int dstLineStride = dstWidth * bpp;
|
|
unsigned int dstFaceStride = dstLineStride * dstHeight;
|
|
unsigned int srcLineStride = srcWidth * bpp;
|
|
unsigned int srcFaceStride = srcLineStride * srcHeight;
|
|
|
|
for (unsigned int i = 0; i < depth; ++i)
|
|
{
|
|
nzUInt8* dstFacePtr = destination;
|
|
const nzUInt8* srcFacePtr = source;
|
|
for (unsigned int y = 0; y < height; ++y)
|
|
{
|
|
std::memcpy(dstFacePtr, srcFacePtr, lineStride);
|
|
|
|
dstFacePtr += dstLineStride;
|
|
srcFacePtr += srcLineStride;
|
|
}
|
|
|
|
destination += dstFaceStride;
|
|
source += srcFaceStride;
|
|
}
|
|
}
|
|
}
|
|
|
|
nzUInt8 NzImage::GetMaxLevel(unsigned int width, unsigned int height, unsigned int depth)
|
|
{
|
|
static const float invLog2 = 1.f/std::log(2.f);
|
|
|
|
unsigned int widthLevel = static_cast<unsigned int>(invLog2 * std::log(static_cast<float>(width)));
|
|
unsigned int heightLevel = static_cast<unsigned int>(invLog2 * std::log(static_cast<float>(height)));
|
|
unsigned int depthLevel = static_cast<unsigned int>(invLog2 * std::log(static_cast<float>(depth)));
|
|
|
|
return std::max(std::max(std::max(widthLevel, heightLevel), depthLevel), 1U);
|
|
}
|
|
|
|
nzUInt8 NzImage::GetMaxLevel(nzImageType type, unsigned int width, unsigned int height, unsigned int depth)
|
|
{
|
|
// Pour éviter que la profondeur ne soit comptée dans le calcul des niveaux
|
|
switch (type)
|
|
{
|
|
case nzImageType_1D:
|
|
case nzImageType_1D_Array:
|
|
return GetMaxLevel(width, 1U, 1U);
|
|
|
|
case nzImageType_2D:
|
|
case nzImageType_2D_Array:
|
|
case nzImageType_Cubemap:
|
|
return GetMaxLevel(width, height, 1U);
|
|
|
|
case nzImageType_3D:
|
|
return GetMaxLevel(width, height, depth);
|
|
}
|
|
|
|
NazaraError("Image type not handled (0x" + NzString::Number(type, 16) + ')');
|
|
return 0;
|
|
|
|
}
|
|
|
|
void NzImage::EnsureOwnership()
|
|
{
|
|
if (m_sharedImage == &emptyImage)
|
|
return;
|
|
|
|
if (m_sharedImage->refCount > 1)
|
|
{
|
|
m_sharedImage->refCount--;
|
|
|
|
nzUInt8** pixels = new nzUInt8*[m_sharedImage->levelCount];
|
|
for (unsigned int i = 0; i < m_sharedImage->levelCount; ++i)
|
|
{
|
|
unsigned int size = GetMemoryUsage(i);
|
|
pixels[i] = new nzUInt8[size];
|
|
std::memcpy(pixels[i], m_sharedImage->pixels[i], size);
|
|
}
|
|
|
|
m_sharedImage = new SharedImage(1, m_sharedImage->type, m_sharedImage->format, m_sharedImage->levelCount, pixels, m_sharedImage->width, m_sharedImage->height, m_sharedImage->depth);
|
|
}
|
|
}
|
|
|
|
void NzImage::ReleaseImage()
|
|
{
|
|
if (m_sharedImage == &emptyImage)
|
|
return;
|
|
|
|
if (--m_sharedImage->refCount == 0)
|
|
{
|
|
for (unsigned int i = 0; i < m_sharedImage->levelCount; ++i)
|
|
delete[] m_sharedImage->pixels[i];
|
|
|
|
delete[] m_sharedImage->pixels;
|
|
delete m_sharedImage;
|
|
}
|
|
|
|
m_sharedImage = &emptyImage;
|
|
}
|
|
|
|
NzImage::SharedImage NzImage::emptyImage(0, nzImageType_2D, nzPixelFormat_Undefined, 1, nullptr, 0, 0, 0);
|
|
NzImageLoader::LoaderList NzImage::s_loaders;
|