mirror of
https://github.com/godotengine/godot.git
synced 2024-11-21 03:18:37 +08:00
147 lines
3.3 KiB
C++
147 lines
3.3 KiB
C++
/*
|
|
* Copyright 2015 The Etc2Comp Authors.
|
|
*
|
|
* Licensed under the Apache License, Version 2.0 (the "License");
|
|
* you may not use this file except in compliance with the License.
|
|
* You may obtain a copy of the License at
|
|
*
|
|
* http://www.apache.org/licenses/LICENSE-2.0
|
|
*
|
|
* Unless required by applicable law or agreed to in writing, software
|
|
* distributed under the License is distributed on an "AS IS" BASIS,
|
|
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
* See the License for the specific language governing permissions and
|
|
* limitations under the License.
|
|
*/
|
|
|
|
#pragma once
|
|
|
|
#include "EtcFile.h"
|
|
#include <stdio.h>
|
|
#include <inttypes.h>
|
|
|
|
namespace Etc
|
|
{
|
|
|
|
class Image;
|
|
|
|
class FileHeader
|
|
{
|
|
public:
|
|
|
|
virtual void Write(FILE *a_pfile) = 0;
|
|
File GetFile();
|
|
virtual ~FileHeader(void) {}
|
|
protected:
|
|
|
|
File *m_pfile;
|
|
};
|
|
|
|
// ----------------------------------------------------------------------------------------------------
|
|
//
|
|
class FileHeader_Pkm : public FileHeader
|
|
{
|
|
public:
|
|
|
|
FileHeader_Pkm(File *a_pfile);
|
|
|
|
virtual void Write(FILE *a_pfile);
|
|
virtual ~FileHeader_Pkm(void) {}
|
|
private:
|
|
|
|
typedef struct
|
|
{
|
|
char m_acMagicNumber[4];
|
|
char m_acVersion[2];
|
|
unsigned char m_ucDataType_msb; // e.g. ETC1_RGB_NO_MIPMAPS
|
|
unsigned char m_ucDataType_lsb;
|
|
unsigned char m_ucExtendedWidth_msb; // padded to 4x4 blocks
|
|
unsigned char m_ucExtendedWidth_lsb;
|
|
unsigned char m_ucExtendedHeight_msb; // padded to 4x4 blocks
|
|
unsigned char m_ucExtendedHeight_lsb;
|
|
unsigned char m_ucOriginalWidth_msb;
|
|
unsigned char m_ucOriginalWidth_lsb;
|
|
unsigned char m_ucOriginalHeight_msb;
|
|
unsigned char m_ucOriginalHeight_lsb;
|
|
} Data;
|
|
|
|
Data m_data;
|
|
};
|
|
|
|
// ----------------------------------------------------------------------------------------------------
|
|
//
|
|
class FileHeader_Ktx : public FileHeader
|
|
{
|
|
public:
|
|
|
|
typedef struct
|
|
{
|
|
uint32_t u32KeyAndValueByteSize;
|
|
} KeyValuePair;
|
|
|
|
typedef struct
|
|
{
|
|
uint8_t m_au8Identifier[12];
|
|
uint32_t m_u32Endianness;
|
|
uint32_t m_u32GlType;
|
|
uint32_t m_u32GlTypeSize;
|
|
uint32_t m_u32GlFormat;
|
|
uint32_t m_u32GlInternalFormat;
|
|
uint32_t m_u32GlBaseInternalFormat;
|
|
uint32_t m_u32PixelWidth;
|
|
uint32_t m_u32PixelHeight;
|
|
uint32_t m_u32PixelDepth;
|
|
uint32_t m_u32NumberOfArrayElements;
|
|
uint32_t m_u32NumberOfFaces;
|
|
uint32_t m_u32NumberOfMipmapLevels;
|
|
uint32_t m_u32BytesOfKeyValueData;
|
|
} Data;
|
|
|
|
enum class InternalFormat
|
|
{
|
|
ETC1_RGB8 = 0x8D64,
|
|
ETC1_ALPHA8 = ETC1_RGB8,
|
|
//
|
|
ETC2_R11 = 0x9270,
|
|
ETC2_SIGNED_R11 = 0x9271,
|
|
ETC2_RG11 = 0x9272,
|
|
ETC2_SIGNED_RG11 = 0x9273,
|
|
ETC2_RGB8 = 0x9274,
|
|
ETC2_SRGB8 = 0x9275,
|
|
ETC2_RGB8A1 = 0x9276,
|
|
ETC2_SRGB8_PUNCHTHROUGH_ALPHA1 = 0x9277,
|
|
ETC2_RGBA8 = 0x9278
|
|
};
|
|
|
|
enum class BaseInternalFormat
|
|
{
|
|
ETC2_R11 = 0x1903,
|
|
ETC2_RG11 = 0x8227,
|
|
ETC1_RGB8 = 0x1907,
|
|
ETC1_ALPHA8 = ETC1_RGB8,
|
|
//
|
|
ETC2_RGB8 = 0x1907,
|
|
ETC2_RGB8A1 = 0x1908,
|
|
ETC2_RGBA8 = 0x1908,
|
|
};
|
|
|
|
FileHeader_Ktx(File *a_pfile);
|
|
|
|
virtual void Write(FILE *a_pfile);
|
|
virtual ~FileHeader_Ktx(void) {}
|
|
|
|
void AddKeyAndValue(KeyValuePair *a_pkeyvaluepair);
|
|
|
|
Data* GetData();
|
|
|
|
private:
|
|
|
|
Data m_data;
|
|
KeyValuePair *m_pkeyvaluepair;
|
|
|
|
uint32_t m_u32Images;
|
|
uint32_t m_u32KeyValuePairs;
|
|
};
|
|
|
|
} // namespace Etc
|