Gabriele Cosmo
102 lines
2.5 KiB
Plaintext
102 lines
2.5 KiB
Plaintext
// Copyright (C) 2010, Guy Barrand. All rights reserved.
|
|
// See the file tools.license for terms.
|
|
|
|
#ifndef tools_platform
|
|
#define tools_platform
|
|
|
|
// We do not byteswap on intel (LE) (common platform).
|
|
// We have then a better compression on these machines.
|
|
// NOTE : this is the contrary to what is done in ROOT (and Rio).
|
|
|
|
namespace tools {
|
|
|
|
inline bool is_little_endian() {
|
|
unsigned int i = 1;
|
|
unsigned char* b = (unsigned char*)&i;
|
|
// BE = Big Endian, LE = Little Endian.
|
|
// The Intels x86 are LE.
|
|
// Mac PPC b[3] is 1 (BE)
|
|
// Mac Intel b[0] is 1 (LE)
|
|
// Linux i386 b[0] is 1 (LE)
|
|
// Linux x86_64 b[0] is 1 (LE)
|
|
return (b[0]==1?true:false);
|
|
}
|
|
|
|
}
|
|
|
|
#if defined(__APPLE__)
|
|
#include <TargetConditionals.h>
|
|
#endif
|
|
|
|
namespace tools {
|
|
namespace device {
|
|
|
|
#if TARGET_OS_IPHONE
|
|
inline bool is_iOS() {return true;}
|
|
#else
|
|
inline bool is_iOS() {return false;}
|
|
#endif
|
|
|
|
#if ANDROID
|
|
inline bool is_Android() {return true;}
|
|
#else
|
|
inline bool is_Android() {return false;}
|
|
#endif
|
|
|
|
|
|
#if ANDROID || TARGET_OS_IPHONE
|
|
inline bool small_screen() {return true;}
|
|
inline bool no_cursor() {return true;}
|
|
inline bool stop_app_button() {return true;}
|
|
#else
|
|
inline bool small_screen() {return false;}
|
|
inline bool no_cursor() {return false;}
|
|
inline bool stop_app_button() {return false;}
|
|
#endif
|
|
#if TARGET_OS_IPHONE
|
|
inline bool slow_cpu() {return true;}
|
|
#else
|
|
inline bool slow_cpu() {return false;}
|
|
#endif
|
|
|
|
inline unsigned int tex_mem_limit() {
|
|
// glGet(GL_MAX_TEXTURE_SIZE) :
|
|
// MacBookPro : it returns 8192.
|
|
// SGS : it returns 2048.
|
|
// iPad1 : it returns 2048.
|
|
// iPod : it returns ?
|
|
// Nexus 10 : it returns ?
|
|
|
|
// 1024*1024 //*3 = 3 145 728
|
|
// 2048*2048 //*3 = 12 582 912
|
|
// 4096*4096 //*3 = 50 331 648
|
|
// 8192*8192 //*3 = 201 326 592
|
|
// 8192*4096 //*3 = 100 663 296
|
|
if(small_screen()) {
|
|
//iOS : Apple says that max 2D tex size is 1024*1024 with two units
|
|
// texture available. From doc on PowerVR MBX.
|
|
return 2048*2048*3;
|
|
} else {
|
|
//limit = 4096*4096*3; //=8192*2048 //permit to pass ATLAS big image.
|
|
//permit to pass fete_science_2010/power2/image_0.jpg
|
|
return 8192*4096*3;
|
|
}
|
|
}
|
|
|
|
}}
|
|
|
|
#endif
|
|
|
|
|
|
/* We prefer to handle endianity dynamically, but with cpp macro
|
|
it would looks like (from luaconf.h) :
|
|
#if defined(__i386__) || defined(__i386) || \
|
|
defined(__X86__) || defined (__x86_64)
|
|
#define TOOLS_IS_BE 0
|
|
#define TOOLS_IS_LE 1
|
|
#elif defined(__POWERPC__) || defined(__ppc__)
|
|
#define TOOLS_IS_BE 1
|
|
#define TOOLS_IS_LE 0
|
|
#endif
|
|
*/
|