/*
- * Copyright (c) 2019 Samsung Electronics Co., Ltd.
+ * Copyright (c) 2020 Samsung Electronics Co., Ltd.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
#include "ktx-loader.h"
// EXTERNAL INCLUDES
+#include <dali/devel-api/adaptor-framework/file-stream.h>
+#include <dali/integration-api/debug.h>
#include <memory.h>
-#include <stdio.h>
#include <stdint.h>
-#include <dali/integration-api/debug.h>
-#include <dali/devel-api/adaptor-framework/file-stream.h>
+#include <stdio.h>
namespace PbrDemo
{
-
struct KtxFileHeader
{
- char identifier[12];
- uint32_t endianness;
- uint32_t glType; //(UNSIGNED_BYTE, UNSIGNED_SHORT_5_6_5, etc.)
- uint32_t glTypeSize;
- uint32_t glFormat; //(RGB, RGBA, BGRA, etc.)
- uint32_t glInternalFormat; //For uncompressed textures, specifies the internalformat parameter passed to glTexStorage*D or glTexImage*D
- uint32_t glBaseInternalFormat;
- uint32_t pixelWidth;
- uint32_t pixelHeight;
- uint32_t pixelDepth;
- uint32_t numberOfArrayElements;
- uint32_t numberOfFaces; //Cube map faces are stored in the order: +X, -X, +Y, -Y, +Z, -Z.
- uint32_t numberOfMipmapLevels;
- uint32_t bytesOfKeyValueData;
+ char identifier[12];
+ uint32_t endianness;
+ uint32_t glType; //(UNSIGNED_BYTE, UNSIGNED_SHORT_5_6_5, etc.)
+ uint32_t glTypeSize;
+ uint32_t glFormat; //(RGB, RGBA, BGRA, etc.)
+ uint32_t glInternalFormat; //For uncompressed textures, specifies the internalformat parameter passed to glTexStorage*D or glTexImage*D
+ uint32_t glBaseInternalFormat;
+ uint32_t pixelWidth;
+ uint32_t pixelHeight;
+ uint32_t pixelDepth;
+ uint32_t numberOfArrayElements;
+ uint32_t numberOfFaces; //Cube map faces are stored in the order: +X, -X, +Y, -Y, +Z, -Z.
+ uint32_t numberOfMipmapLevels;
+ uint32_t bytesOfKeyValueData;
};
/**
*/
bool ConvertPixelFormat(const uint32_t ktxPixelFormat, Dali::Pixel::Format& format)
{
- switch( ktxPixelFormat )
+ switch(ktxPixelFormat)
{
case 0x93B0: // GL_COMPRESSED_RGBA_ASTC_4x4_KHR
{
format = Dali::Pixel::COMPRESSED_RGBA_ASTC_4x4_KHR;
break;
}
- case 0x881B:// GL_RGB16F
+ case 0x881B: // GL_RGB16F
{
format = Dali::Pixel::RGB16F;
break;
return true;
}
-bool LoadCubeMapFromKtxFile( const std::string& path, CubeData& cubedata )
+bool LoadCubeMapFromKtxFile(const std::string& path, CubeData& cubedata)
{
- Dali::FileStream fileStream( path, Dali::FileStream::READ | Dali::FileStream::BINARY );
- FILE* fp = fileStream.GetFile();
- if( NULL == fp )
+ std::unique_ptr<FILE, void (*)(FILE*)> fp(fopen(path.c_str(), "rb"), [](FILE* fp) {
+ if(fp)
+ {
+ fclose(fp);
+ }
+ });
+ if(!fp)
{
return false;
}
KtxFileHeader header;
-
- int result = fread(&header,1,sizeof(KtxFileHeader),fp);
- if( 0 == result )
+ int result = fread(&header, sizeof(KtxFileHeader), 1u, fp.get());
+ if(0 == result)
{
return false;
}
- long lSize = 0;
-
// Skip the key-values:
- const long int imageSizeOffset = sizeof(KtxFileHeader) + header.bytesOfKeyValueData;
-
- if( fseek(fp, 0, SEEK_END) )
- {
- return false;
- }
-
- lSize = ftell(fp);
- if( lSize == -1L )
- {
- return false;
- }
-
- lSize -= imageSizeOffset;
-
- rewind(fp);
-
- if( fseek(fp, imageSizeOffset, SEEK_SET) )
+ if(fseek(fp.get(), header.bytesOfKeyValueData, SEEK_CUR))
{
return false;
}
cubedata.img.resize(header.numberOfFaces);
- for(unsigned int face=0; face < header.numberOfFaces; ++face) //array_element must be 0 or 1
+ for(unsigned int face = 0; face < header.numberOfFaces; ++face) //array_element must be 0 or 1
{
cubedata.img[face].resize(header.numberOfMipmapLevels);
}
- unsigned char* buffer= reinterpret_cast<unsigned char*>( malloc( lSize ) );
-
- unsigned char* img[6];
- unsigned int imgSize[6];
- unsigned char* imgPointer = buffer;
- result = fread(buffer,1,lSize,fp);
-
- if( 0 == result )
- {
- free( buffer );
- return false;
- }
-
- if( 0 == header.numberOfMipmapLevels )
+ if(0 == header.numberOfMipmapLevels)
{
header.numberOfMipmapLevels = 1u;
}
- if( 0 == header.numberOfArrayElements )
+ if(0 == header.numberOfArrayElements)
{
header.numberOfArrayElements = 1u;
}
- if( 0 == header.pixelDepth )
+ if(0 == header.pixelDepth)
{
header.pixelDepth = 1u;
}
- if( 0 == header.pixelHeight )
+ if(0 == header.pixelHeight)
{
header.pixelHeight = 1u;
}
ConvertPixelFormat(header.glInternalFormat, daliformat);
- for( unsigned int mipmapLevel = 0; mipmapLevel < header.numberOfMipmapLevels; ++mipmapLevel )
+ for(unsigned int mipmapLevel = 0; mipmapLevel < header.numberOfMipmapLevels; ++mipmapLevel)
{
- long int byteSize = 0;
- int imageSize;
- memcpy(&imageSize,imgPointer,sizeof(unsigned int));
- imgPointer += 4u;
- for(unsigned int arrayElement=0; arrayElement < header.numberOfArrayElements; ++arrayElement) //arrayElement must be 0 or 1
+ uint32_t byteSize = 0;
+ if(fread(&byteSize, sizeof(byteSize), 1u, fp.get()) != 1)
+ {
+ return false;
+ }
+
+ if(0 != byteSize % 4u)
{
- for(unsigned int face=0; face < header.numberOfFaces; ++face)
+ byteSize += 4u - byteSize % 4u;
+ }
+
+ for(unsigned int arrayElement = 0; arrayElement < header.numberOfArrayElements; ++arrayElement) // arrayElement must be 0 or 1
+ {
+ for(unsigned int face = 0; face < header.numberOfFaces; ++face)
{
- byteSize = imageSize;
- if(byteSize % 4u)
+ std::unique_ptr<uint8_t, void (*)(void*)> img(static_cast<unsigned char*>(malloc(byteSize)), free); // resources will be freed when the PixelData is destroyed.
+ if(fread(img.get(), byteSize, 1u, fp.get()) != 1)
{
- byteSize += 4u - byteSize % 4u;
+ return false;
}
- img[face] = reinterpret_cast<unsigned char*>( malloc( byteSize ) ); // resources will be freed when the PixelData is destroyed.
- memcpy(img[face],imgPointer,byteSize);
- imgSize[face] = byteSize;
- imgPointer += byteSize;
- cubedata.img[face][mipmapLevel] = PixelData::New( img[face], imgSize[face], header.pixelWidth , header.pixelHeight , daliformat, PixelData::FREE );
+ cubedata.img[face][mipmapLevel] = PixelData::New(img.release(), byteSize, header.pixelWidth, header.pixelHeight, daliformat, PixelData::FREE);
}
}
- header.pixelHeight/=2u;
- header.pixelWidth/=2u;
+
+ header.pixelHeight /= 2u;
+ header.pixelWidth /= 2u;
}
- free(buffer);
return true;
}
projects / platform / core / uifw / dali-demo.git / blobdiff