Mercurial > sdl-ios-xcode
view include/SDL_endian.h @ 3099:82e60908fab1
Date: Mon, 23 Mar 2009 09:17:24 +0200
From: "Mike Gorchak"
Subject: New QNX patches
Please apply patch qnx4.diff, which is attached. What has been done:
1)Added back OpenGL ES renderer for QNX target. Added few corrections to
OpenGL ES renderer to let it work under QNX. OpenGL ES renderer do not
support textures under QNX, so I think some additional work must be done.
2) Added GL_OES_query_matrix extension to SDL_opengles.h header file, which
required by OpenGL ES 1.1 specification.
3) Added attribute clearing at the entrance of function
SDL_GL_GetAttribure(). Added error checking into the function
SDL_GL_GetAttribure(), because some attributes can't be obtained in OpenGL
ES 1.0.
4) Porting testdyngles to OpenGL ES 1.0 (1.1 has glColor4ub() and
glColor4f() functions, but 1.0 has glColor4f() only).
5) Added error checking after obtaining attributes using
SDL_GL_GetAttribute() function to the testgl2 and testgles.
6) Small correction to testmultiaudio with printing errors.
7) Added software and accelerated OpenGL ES 1.0 support into the QNX GF
driver.
Please remove ./src/audio/nto directory - it will not be used anymore.
Please create ./src/audio/qsa directory and add content of the archive
qsa.tar.gz into this directory. I rewrote some sound code, added support for
multiple audio cards, enumeration, etc. Added initial support for capture.
As far as I can understand SDL 1.3 is not supporting audio capture right now
? Sam, Am I right ? Or audio capture must be supported through the
PlayDevice routine ?
And last, please put file SDL_gf_opengles.c to the ./src/video/qnxgf
directory. It is OpenGL ES 1.1 emulation layer for some functions, which are
not supported by OpenGL ES 1.0.
author | Sam Lantinga <slouken@libsdl.org> |
---|---|
date | Tue, 24 Mar 2009 10:33:12 +0000 |
parents | bcd41b269091 |
children | d3baf5ac4e37 |
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/* SDL - Simple DirectMedia Layer Copyright (C) 1997-2009 Sam Lantinga This library is free software; you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by the Free Software Foundation; either version 2.1 of the License, or (at your option) any later version. This library is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details. You should have received a copy of the GNU Lesser General Public License along with this library; if not, write to the Free Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA Sam Lantinga slouken@libsdl.org */ /** * \file SDL_endian.h * * Functions for reading and writing endian-specific values */ #ifndef _SDL_endian_h #define _SDL_endian_h #include "SDL_stdinc.h" /* The two types of endianness */ #define SDL_LIL_ENDIAN 1234 #define SDL_BIG_ENDIAN 4321 #ifndef SDL_BYTEORDER /* Not defined in SDL_config.h? */ #if defined(__hppa__) || \ defined(__m68k__) || defined(mc68000) || defined(_M_M68K) || \ (defined(__MIPS__) && defined(__MISPEB__)) || \ defined(__ppc__) || defined(__POWERPC__) || defined(_M_PPC) || \ defined(__sparc__) #define SDL_BYTEORDER SDL_BIG_ENDIAN #else #define SDL_BYTEORDER SDL_LIL_ENDIAN #endif #endif /* !SDL_BYTEORDER */ #include "begin_code.h" /* Set up for C function definitions, even when using C++ */ #ifdef __cplusplus /* *INDENT-OFF* */ extern "C" { /* *INDENT-ON* */ #endif /* Use inline functions for compilers that support them, and static functions for those that do not. Because these functions become static for compilers that do not support inline functions, this header should only be included in files that actually use them. */ #if defined(__GNUC__) && defined(__i386__) && \ !(__GNUC__ == 2 && __GNUC_MINOR__ == 95 /* broken gcc version */) static __inline__ Uint16 SDL_Swap16(Uint16 x) { __asm__("xchgb %b0,%h0": "=q"(x):"0"(x)); return x; } #elif defined(__GNUC__) && defined(__x86_64__) static __inline__ Uint16 SDL_Swap16(Uint16 x) { __asm__("xchgb %b0,%h0": "=Q"(x):"0"(x)); return x; } #elif defined(__GNUC__) && (defined(__powerpc__) || defined(__ppc__)) static __inline__ Uint16 SDL_Swap16(Uint16 x) { Uint16 result; __asm__("rlwimi %0,%2,8,16,23": "=&r"(result):"0"(x >> 8), "r"(x)); return result; } #elif defined(__GNUC__) && (defined(__M68000__) || defined(__M68020__)) static __inline__ Uint16 SDL_Swap16(Uint16 x) { __asm__("rorw #8,%0": "=d"(x): "0"(x):"cc"); return x; } #else static __inline__ Uint16 SDL_Swap16(Uint16 x) { return ((x << 8) | (x >> 8)); } #endif #if defined(__GNUC__) && defined(__i386__) static __inline__ Uint32 SDL_Swap32(Uint32 x) { __asm__("bswap %0": "=r"(x):"0"(x)); return x; } #elif defined(__GNUC__) && defined(__x86_64__) static __inline__ Uint32 SDL_Swap32(Uint32 x) { __asm__("bswapl %0": "=r"(x):"0"(x)); return x; } #elif defined(__GNUC__) && (defined(__powerpc__) || defined(__ppc__)) static __inline__ Uint32 SDL_Swap32(Uint32 x) { Uint32 result; __asm__("rlwimi %0,%2,24,16,23": "=&r"(result):"0"(x >> 24), "r"(x)); __asm__("rlwimi %0,%2,8,8,15": "=&r"(result):"0"(result), "r"(x)); __asm__("rlwimi %0,%2,24,0,7": "=&r"(result):"0"(result), "r"(x)); return result; } #elif defined(__GNUC__) && (defined(__M68000__) || defined(__M68020__)) static __inline__ Uint32 SDL_Swap32(Uint32 x) { __asm__("rorw #8,%0\n\tswap %0\n\trorw #8,%0": "=d"(x): "0"(x):"cc"); return x; } #else static __inline__ Uint32 SDL_Swap32(Uint32 x) { return ((x << 24) | ((x << 8) & 0x00FF0000) | ((x >> 8) & 0x0000FF00) | (x >> 24)); } #endif #ifdef SDL_HAS_64BIT_TYPE #if defined(__GNUC__) && defined(__i386__) static __inline__ Uint64 SDL_Swap64(Uint64 x) { union { struct { Uint32 a, b; } s; Uint64 u; } v; v.u = x; __asm__("bswapl %0 ; bswapl %1 ; xchgl %0,%1": "=r"(v.s.a), "=r"(v.s.b):"0"(v.s.a), "1"(v.s. b)); return v.u; } #elif defined(__GNUC__) && defined(__x86_64__) static __inline__ Uint64 SDL_Swap64(Uint64 x) { __asm__("bswapq %0": "=r"(x):"0"(x)); return x; } #else static __inline__ Uint64 SDL_Swap64(Uint64 x) { Uint32 hi, lo; /* Separate into high and low 32-bit values and swap them */ lo = SDL_static_cast(Uint32, x & 0xFFFFFFFF); x >>= 32; hi = SDL_static_cast(Uint32, x & 0xFFFFFFFF); x = SDL_Swap32(lo); x <<= 32; x |= SDL_Swap32(hi); return (x); } #endif #else /* This is mainly to keep compilers from complaining in SDL code. If there is no real 64-bit datatype, then compilers will complain about the fake 64-bit datatype that SDL provides when it compiles user code. */ #define SDL_Swap64(X) (X) #endif /* SDL_HAS_64BIT_TYPE */ static __inline__ float SDL_SwapFloat(float x) { union { float f; Uint32 ui32; } swapper; swapper.f = x; swapper.ui32 = SDL_Swap32(swapper.ui32); return swapper.f; } /* Byteswap item from the specified endianness to the native endianness */ #if SDL_BYTEORDER == SDL_LIL_ENDIAN #define SDL_SwapLE16(X) (X) #define SDL_SwapLE32(X) (X) #define SDL_SwapLE64(X) (X) #define SDL_SwapFloatLE(X) (X) #define SDL_SwapBE16(X) SDL_Swap16(X) #define SDL_SwapBE32(X) SDL_Swap32(X) #define SDL_SwapBE64(X) SDL_Swap64(X) #define SDL_SwapFloatBE(X) SDL_SwapFloat(X) #else #define SDL_SwapLE16(X) SDL_Swap16(X) #define SDL_SwapLE32(X) SDL_Swap32(X) #define SDL_SwapLE64(X) SDL_Swap64(X) #define SDL_SwapFloatLE(X) SDL_SwapFloat(X) #define SDL_SwapBE16(X) (X) #define SDL_SwapBE32(X) (X) #define SDL_SwapBE64(X) (X) #define SDL_SwapFloatBE(X) (X) #endif /* Ends C function definitions when using C++ */ #ifdef __cplusplus /* *INDENT-OFF* */ } /* *INDENT-ON* */ #endif #include "close_code.h" #endif /* _SDL_endian_h */ /* vi: set ts=4 sw=4 expandtab: */