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#pragma once
#include <cstdint> // for header
#include "ITextureLoader.h"
namespace nCine
{
/// PVR texture loader
class TextureLoaderPvr : public ITextureLoader
{
public:
explicit TextureLoaderPvr(std::unique_ptr<Death::IO::Stream> fileHandle);
private:
#ifndef DOXYGEN_GENERATING_OUTPUT
// Doxygen 1.12.0 outputs also private structs/unions even if it shouldn't
/// Header for the PVR3 format
struct Pvr3Header
{
std::uint32_t version;
std::uint32_t flags;
std::uint64_t pixelFormat;
std::uint32_t colourSpace;
std::uint32_t channelType;
std::uint32_t height;
std::uint32_t width;
std::uint32_t depth;
std::uint32_t numSurfaces;
std::uint32_t numFaces;
std::uint32_t numMipmaps;
std::uint32_t metaDataSize;
};
#endif
static const std::uint64_t FMT_PVRTC_2BPP_RGB = 0;
static const std::uint64_t FMT_PVRTC_2BPP_RGBA = 1;
static const std::uint64_t FMT_PVRTC_4BPP_RGB = 2;
static const std::uint64_t FMT_PVRTC_4BPP_RGBA = 3;
static const std::uint64_t FMT_PVRTCII_2BPP = 4;
static const std::uint64_t FMT_PVRTCII_4BPP = 5;
static const std::uint64_t FMT_ETC1 = 6;
static const std::uint64_t FMT_DXT1 = 7;
static const std::uint64_t FMT_DXT3 = 9;
static const std::uint64_t FMT_DXT5 = 11;
static const std::uint64_t FMT_ETC2_RGB = 22;
static const std::uint64_t FMT_ETC2_RGBA = 23;
static const std::uint64_t FMT_ETC2_RGB_A1 = 24;
static const std::uint64_t FMT_EAC_R11 = 25;
static const std::uint64_t FMT_EAC_RG11 = 26;
static const std::uint64_t FMT_ASTC_4x4 = 27;
static const std::uint64_t FMT_ASTC_5x4 = 28;
static const std::uint64_t FMT_ASTC_5x5 = 29;
static const std::uint64_t FMT_ASTC_6x5 = 30;
static const std::uint64_t FMT_ASTC_6x6 = 31;
static const std::uint64_t FMT_ASTC_8x5 = 32;
static const std::uint64_t FMT_ASTC_8x6 = 33;
static const std::uint64_t FMT_ASTC_8x8 = 34;
static const std::uint64_t FMT_ASTC_10x5 = 35;
static const std::uint64_t FMT_ASTC_10x6 = 36;
static const std::uint64_t FMT_ASTC_10x8 = 37;
static const std::uint64_t FMT_ASTC_10x10 = 38;
static const std::uint64_t FMT_ASTC_12x10 = 39;
static const std::uint64_t FMT_ASTC_12x12 = 40;
static const std::uint64_t FMT_BGRA_8888 = 0x0808080861726762ULL;
static const std::uint64_t FMT_RGB_888 = 0x0008080800626772ULL; // rgb08880
static const std::uint64_t FMT_RGBA_8888 = 0x0808080861626772ULL; // rgba8888
static const std::uint64_t FMT_RGB_565 = 0x0005060500626772ULL; // rgb05650
static const std::uint64_t FMT_RGBA_5551 = 0x0105050561626772ULL; // rgba5551
static const std::uint64_t FMT_RGBA_4444 = 0x0404040461626772ULL; // rgba4444
static const std::uint64_t FMT_LA_88 = 0x000008080000616cULL;
static const std::uint64_t FMT_L_8 = 0x000000080000006cULL;
static const std::uint64_t FMT_A_8 = 0x0000000800000061ULL;
/// Reads the PVR3 header and fills the corresponding structure
bool readHeader(Pvr3Header& header);
/// Parses the PVR3 header to determine its format
bool parseFormat(const Pvr3Header& header);
};
}
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