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904 lines
22 KiB
C
904 lines
22 KiB
C
/**
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* \file imports.c
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* Standard C library function wrappers.
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*
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* Imports are services which the device driver or window system or
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* operating system provides to the core renderer. The core renderer (Mesa)
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* will call these functions in order to do memory allocation, simple I/O,
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* etc.
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*
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* Some drivers will want to override/replace this file with something
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* specialized, but that'll be rare.
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*
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* Eventually, I want to move roll the glheader.h file into this.
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*
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* \todo Functions still needed:
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* - scanf
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* - qsort
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* - rand and RAND_MAX
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*/
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/*
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* Mesa 3-D graphics library
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* Version: 7.1
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*
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* Copyright (C) 1999-2007 Brian Paul All Rights Reserved.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included
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* in all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
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* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
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* AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*/
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#include <precomp.h>
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#ifdef _GNU_SOURCE
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#include <locale.h>
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#ifdef __APPLE__
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#include <xlocale.h>
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#endif
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#endif
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#define MAXSTRING 4000 /* for vsnprintf() */
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#ifdef WIN32
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#define vsnprintf _vsnprintf
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#elif defined(__IBMC__) || defined(__IBMCPP__) || ( defined(__VMS) && __CRTL_VER < 70312000 )
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extern int vsnprintf(char *str, size_t count, const char *fmt, va_list arg);
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#ifdef __VMS
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#include "vsnprintf.c"
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#endif
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#endif
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/**********************************************************************/
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/** \name Memory */
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/*@{*/
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/**
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* Allocate aligned memory.
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*
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* \param bytes number of bytes to allocate.
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* \param alignment alignment (must be greater than zero).
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*
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* Allocates extra memory to accommodate rounding up the address for
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* alignment and to record the real malloc address.
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*
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* \sa _mesa_align_free().
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*/
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void *
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_mesa_align_malloc(size_t bytes, unsigned long alignment)
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{
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#if defined(HAVE_POSIX_MEMALIGN)
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void *mem;
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int err = posix_memalign(& mem, alignment, bytes);
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if (err)
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return NULL;
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return mem;
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#elif defined(_WIN32) && defined(_MSC_VER)
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return _aligned_malloc(bytes, alignment);
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#else
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uintptr_t ptr, buf;
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ASSERT( alignment > 0 );
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ptr = (uintptr_t) malloc(bytes + alignment + sizeof(void *));
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if (!ptr)
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return NULL;
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buf = (ptr + alignment + sizeof(void *)) & ~(uintptr_t)(alignment - 1);
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*(uintptr_t *)(buf - sizeof(void *)) = ptr;
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#ifdef DEBUG
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/* mark the non-aligned area */
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while ( ptr < buf - sizeof(void *) ) {
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*(unsigned long *)ptr = 0xcdcdcdcd;
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ptr += sizeof(unsigned long);
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}
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#endif
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return (void *) buf;
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#endif /* defined(HAVE_POSIX_MEMALIGN) */
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}
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/**
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* Same as _mesa_align_malloc(), but using calloc(1, ) instead of
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* malloc()
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*/
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void *
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_mesa_align_calloc(size_t bytes, unsigned long alignment)
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{
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#if defined(HAVE_POSIX_MEMALIGN)
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void *mem;
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mem = _mesa_align_malloc(bytes, alignment);
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if (mem != NULL) {
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(void) memset(mem, 0, bytes);
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}
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return mem;
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#elif defined(_WIN32) && defined(_MSC_VER)
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void *mem;
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mem = _aligned_malloc(bytes, alignment);
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if (mem != NULL) {
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(void) memset(mem, 0, bytes);
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}
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return mem;
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#else
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uintptr_t ptr, buf;
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ASSERT( alignment > 0 );
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ptr = (uintptr_t) calloc(1, bytes + alignment + sizeof(void *));
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if (!ptr)
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return NULL;
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buf = (ptr + alignment + sizeof(void *)) & ~(uintptr_t)(alignment - 1);
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*(uintptr_t *)(buf - sizeof(void *)) = ptr;
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#ifdef DEBUG
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/* mark the non-aligned area */
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while ( ptr < buf - sizeof(void *) ) {
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*(unsigned long *)ptr = 0xcdcdcdcd;
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ptr += sizeof(unsigned long);
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}
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#endif
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return (void *)buf;
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#endif /* defined(HAVE_POSIX_MEMALIGN) */
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}
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/**
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* Free memory which was allocated with either _mesa_align_malloc()
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* or _mesa_align_calloc().
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* \param ptr pointer to the memory to be freed.
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* The actual address to free is stored in the word immediately before the
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* address the client sees.
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*/
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void
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_mesa_align_free(void *ptr)
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{
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#if defined(HAVE_POSIX_MEMALIGN)
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free(ptr);
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#elif defined(_WIN32) && defined(_MSC_VER)
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_aligned_free(ptr);
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#else
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void **cubbyHole = (void **) ((char *) ptr - sizeof(void *));
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void *realAddr = *cubbyHole;
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free(realAddr);
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#endif /* defined(HAVE_POSIX_MEMALIGN) */
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}
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/**
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* Reallocate memory, with alignment.
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*/
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void *
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_mesa_align_realloc(void *oldBuffer, size_t oldSize, size_t newSize,
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unsigned long alignment)
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{
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#if defined(_WIN32) && defined(_MSC_VER)
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(void) oldSize;
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return _aligned_realloc(oldBuffer, newSize, alignment);
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#else
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const size_t copySize = (oldSize < newSize) ? oldSize : newSize;
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void *newBuf = _mesa_align_malloc(newSize, alignment);
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if (newBuf && oldBuffer && copySize > 0) {
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memcpy(newBuf, oldBuffer, copySize);
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}
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if (oldBuffer)
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_mesa_align_free(oldBuffer);
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return newBuf;
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#endif
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}
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/** Reallocate memory */
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void *
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_mesa_realloc(void *oldBuffer, size_t oldSize, size_t newSize)
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{
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const size_t copySize = (oldSize < newSize) ? oldSize : newSize;
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void *newBuffer = malloc(newSize);
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if (newBuffer && oldBuffer && copySize > 0)
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memcpy(newBuffer, oldBuffer, copySize);
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if (oldBuffer)
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free(oldBuffer);
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return newBuffer;
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}
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/**
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* Fill memory with a constant 16bit word.
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* \param dst destination pointer.
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* \param val value.
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* \param n number of words.
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*/
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void
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_mesa_memset16( unsigned short *dst, unsigned short val, size_t n )
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{
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while (n-- > 0)
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*dst++ = val;
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}
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/*@}*/
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/**********************************************************************/
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/** \name Math */
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/*@{*/
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/** Wrapper around sqrt() */
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double
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_mesa_sqrtd(double x)
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{
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return sqrt(x);
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}
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/*
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* A High Speed, Low Precision Square Root
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* by Paul Lalonde and Robert Dawson
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* from "Graphics Gems", Academic Press, 1990
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*
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* SPARC implementation of a fast square root by table
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* lookup.
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* SPARC floating point format is as follows:
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*
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* BIT 31 30 23 22 0
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* sign exponent mantissa
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*/
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static short sqrttab[0x100]; /* declare table of square roots */
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void
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_mesa_init_sqrt_table(void)
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{
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#if defined(USE_IEEE) && !defined(DEBUG)
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unsigned short i;
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fi_type fi; /* to access the bits of a float in C quickly */
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/* we use a union defined in glheader.h */
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for(i=0; i<= 0x7f; i++) {
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fi.i = 0;
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/*
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* Build a float with the bit pattern i as mantissa
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* and an exponent of 0, stored as 127
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*/
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fi.i = (i << 16) | (127 << 23);
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fi.f = _mesa_sqrtd(fi.f);
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/*
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* Take the square root then strip the first 7 bits of
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* the mantissa into the table
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*/
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sqrttab[i] = (fi.i & 0x7fffff) >> 16;
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/*
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* Repeat the process, this time with an exponent of
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* 1, stored as 128
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*/
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fi.i = 0;
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fi.i = (i << 16) | (128 << 23);
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fi.f = sqrt(fi.f);
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sqrttab[i+0x80] = (fi.i & 0x7fffff) >> 16;
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}
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#else
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(void) sqrttab; /* silence compiler warnings */
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#endif /*HAVE_FAST_MATH*/
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}
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/**
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* Single precision square root.
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*/
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float
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_mesa_sqrtf( float x )
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{
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#if defined(USE_IEEE) && !defined(DEBUG)
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fi_type num;
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/* to access the bits of a float in C
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* we use a union from glheader.h */
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short e; /* the exponent */
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if (x == 0.0F) return 0.0F; /* check for square root of 0 */
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num.f = x;
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e = (num.i >> 23) - 127; /* get the exponent - on a SPARC the */
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/* exponent is stored with 127 added */
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num.i &= 0x7fffff; /* leave only the mantissa */
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if (e & 0x01) num.i |= 0x800000;
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/* the exponent is odd so we have to */
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/* look it up in the second half of */
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/* the lookup table, so we set the */
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/* high bit */
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e >>= 1; /* divide the exponent by two */
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/* note that in C the shift */
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/* operators are sign preserving */
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/* for signed operands */
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/* Do the table lookup, based on the quaternary mantissa,
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* then reconstruct the result back into a float
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*/
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num.i = ((sqrttab[num.i >> 16]) << 16) | ((e + 127) << 23);
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return num.f;
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#else
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return (float) _mesa_sqrtd((double) x);
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#endif
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}
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/**
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inv_sqrt - A single precision 1/sqrt routine for IEEE format floats.
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written by Josh Vanderhoof, based on newsgroup posts by James Van Buskirk
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and Vesa Karvonen.
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*/
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float
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_mesa_inv_sqrtf(float n)
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{
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#if defined(USE_IEEE) && !defined(DEBUG)
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float r0, x0, y0;
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float r1, x1, y1;
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float r2, x2, y2;
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#if 0 /* not used, see below -BP */
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float r3, x3, y3;
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#endif
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fi_type u;
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unsigned int magic;
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/*
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Exponent part of the magic number -
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We want to:
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1. subtract the bias from the exponent,
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2. negate it
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3. divide by two (rounding towards -inf)
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4. add the bias back
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Which is the same as subtracting the exponent from 381 and dividing
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by 2.
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floor(-(x - 127) / 2) + 127 = floor((381 - x) / 2)
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*/
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magic = 381 << 23;
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/*
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Significand part of magic number -
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With the current magic number, "(magic - u.i) >> 1" will give you:
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for 1 <= u.f <= 2: 1.25 - u.f / 4
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for 2 <= u.f <= 4: 1.00 - u.f / 8
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This isn't a bad approximation of 1/sqrt. The maximum difference from
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1/sqrt will be around .06. After three Newton-Raphson iterations, the
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maximum difference is less than 4.5e-8. (Which is actually close
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enough to make the following bias academic...)
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To get a better approximation you can add a bias to the magic
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number. For example, if you subtract 1/2 of the maximum difference in
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the first approximation (.03), you will get the following function:
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for 1 <= u.f <= 2: 1.22 - u.f / 4
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for 2 <= u.f <= 3.76: 0.97 - u.f / 8
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for 3.76 <= u.f <= 4: 0.72 - u.f / 16
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(The 3.76 to 4 range is where the result is < .5.)
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This is the closest possible initial approximation, but with a maximum
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error of 8e-11 after three NR iterations, it is still not perfect. If
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you subtract 0.0332281 instead of .03, the maximum error will be
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2.5e-11 after three NR iterations, which should be about as close as
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is possible.
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for 1 <= u.f <= 2: 1.2167719 - u.f / 4
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for 2 <= u.f <= 3.73: 0.9667719 - u.f / 8
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for 3.73 <= u.f <= 4: 0.7167719 - u.f / 16
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*/
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magic -= (int)(0.0332281 * (1 << 25));
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u.f = n;
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u.i = (magic - u.i) >> 1;
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/*
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Instead of Newton-Raphson, we use Goldschmidt's algorithm, which
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allows more parallelism. From what I understand, the parallelism
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comes at the cost of less precision, because it lets error
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accumulate across iterations.
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*/
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x0 = 1.0f;
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y0 = 0.5f * n;
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r0 = u.f;
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x1 = x0 * r0;
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y1 = y0 * r0 * r0;
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r1 = 1.5f - y1;
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x2 = x1 * r1;
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y2 = y1 * r1 * r1;
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r2 = 1.5f - y2;
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#if 1
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return x2 * r2; /* we can stop here, and be conformant -BP */
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#else
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x3 = x2 * r2;
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y3 = y2 * r2 * r2;
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r3 = 1.5f - y3;
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return x3 * r3;
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#endif
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#else
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return (float) (1.0 / sqrt(n));
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#endif
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}
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#ifndef __GNUC__
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/**
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* Find the first bit set in a word.
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*/
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int
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_mesa_ffs(int32_t i)
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{
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#if (defined(_WIN32) ) || defined(__IBMC__) || defined(__IBMCPP__)
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register int bit = 0;
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if (i != 0) {
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if ((i & 0xffff) == 0) {
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bit += 16;
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i >>= 16;
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}
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if ((i & 0xff) == 0) {
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bit += 8;
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i >>= 8;
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}
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if ((i & 0xf) == 0) {
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bit += 4;
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i >>= 4;
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}
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while ((i & 1) == 0) {
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bit++;
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i >>= 1;
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}
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bit++;
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}
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return bit;
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#else
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return ffs(i);
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#endif
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}
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/**
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* Find position of first bit set in given value.
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* XXX Warning: this function can only be used on 64-bit systems!
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* \return position of least-significant bit set, starting at 1, return zero
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* if no bits set.
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*/
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int
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_mesa_ffsll(int64_t val)
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{
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int bit;
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assert(sizeof(val) == 8);
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bit = _mesa_ffs((int32_t)val);
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if (bit != 0)
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return bit;
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bit = _mesa_ffs((int32_t)(val >> 32));
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if (bit != 0)
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return 32 + bit;
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return 0;
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}
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#endif
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#if !defined(__GNUC__) ||\
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((__GNUC__ * 100 + __GNUC_MINOR__) < 304) /* Not gcc 3.4 or later */
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/**
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* Return number of bits set in given GLuint.
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*/
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unsigned int
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_mesa_bitcount(unsigned int n)
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{
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unsigned int bits;
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for (bits = 0; n > 0; n = n >> 1) {
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bits += (n & 1);
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}
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return bits;
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}
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/**
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* Return number of bits set in given 64-bit uint.
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*/
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unsigned int
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_mesa_bitcount_64(uint64_t n)
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{
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unsigned int bits;
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for (bits = 0; n > 0; n = n >> 1) {
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bits += (n & 1);
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}
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return bits;
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}
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#endif
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/*@}*/
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/**********************************************************************/
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|
/** \name Sort & Search */
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|
/*@{*/
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|
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/**
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|
* Wrapper for bsearch().
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|
*/
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void *
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_mesa_bsearch( const void *key, const void *base, size_t nmemb, size_t size,
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int (*compar)(const void *, const void *) )
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|
{
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|
#if defined(_WIN32_WCE)
|
|
void *mid;
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|
int cmp;
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|
while (nmemb) {
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nmemb >>= 1;
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mid = (char *)base + nmemb * size;
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|
cmp = (*compar)(key, mid);
|
|
if (cmp == 0)
|
|
return mid;
|
|
if (cmp > 0) {
|
|
base = (char *)mid + size;
|
|
--nmemb;
|
|
}
|
|
}
|
|
return NULL;
|
|
#else
|
|
return bsearch(key, base, nmemb, size, compar);
|
|
#endif
|
|
}
|
|
|
|
/*@}*/
|
|
|
|
|
|
/**********************************************************************/
|
|
/** \name Environment vars */
|
|
/*@{*/
|
|
|
|
/**
|
|
* Wrapper for getenv().
|
|
*/
|
|
char *
|
|
_mesa_getenv( const char *var )
|
|
{
|
|
#if defined(_XBOX) || defined(_WIN32_WCE)
|
|
return NULL;
|
|
#else
|
|
return getenv(var);
|
|
#endif
|
|
}
|
|
|
|
/*@}*/
|
|
|
|
|
|
/**********************************************************************/
|
|
/** \name String */
|
|
/*@{*/
|
|
|
|
/**
|
|
* Implemented using malloc() and strcpy.
|
|
* Note that NULL is handled accordingly.
|
|
*/
|
|
char *
|
|
_mesa_strdup( const char *s )
|
|
{
|
|
if (s) {
|
|
size_t l = strlen(s);
|
|
char *s2 = (char *) malloc(l + 1);
|
|
if (s2)
|
|
strcpy(s2, s);
|
|
return s2;
|
|
}
|
|
else {
|
|
return NULL;
|
|
}
|
|
}
|
|
|
|
/** Wrapper around strtof() */
|
|
float
|
|
_mesa_strtof( const char *s, char **end )
|
|
{
|
|
#if defined(_GNU_SOURCE) && !defined(__CYGWIN__) && !defined(__FreeBSD__) && \
|
|
!defined(ANDROID) && !defined(__HAIKU__)
|
|
static locale_t loc = NULL;
|
|
if (!loc) {
|
|
loc = newlocale(LC_CTYPE_MASK, "C", NULL);
|
|
}
|
|
return strtof_l(s, end, loc);
|
|
#elif defined(_ISOC99_SOURCE) || (defined(_XOPEN_SOURCE) && _XOPEN_SOURCE >= 600)
|
|
return strtof(s, end);
|
|
#else
|
|
return (float)strtod(s, end);
|
|
#endif
|
|
}
|
|
|
|
/** Compute simple checksum/hash for a string */
|
|
unsigned int
|
|
_mesa_str_checksum(const char *str)
|
|
{
|
|
/* This could probably be much better */
|
|
unsigned int sum, i;
|
|
const char *c;
|
|
sum = i = 1;
|
|
for (c = str; *c; c++, i++)
|
|
sum += *c * (i % 100);
|
|
return sum + i;
|
|
}
|
|
|
|
|
|
/*@}*/
|
|
|
|
|
|
/** Wrapper around vsnprintf() */
|
|
int
|
|
_mesa_snprintf( char *str, size_t size, const char *fmt, ... )
|
|
{
|
|
int r;
|
|
va_list args;
|
|
va_start( args, fmt );
|
|
r = vsnprintf( str, size, fmt, args );
|
|
va_end( args );
|
|
return r;
|
|
}
|
|
|
|
|
|
/**********************************************************************/
|
|
/** \name Diagnostics */
|
|
/*@{*/
|
|
|
|
static void
|
|
output_if_debug(const char *prefixString, const char *outputString,
|
|
GLboolean newline)
|
|
{
|
|
static int debug = -1;
|
|
|
|
/* Check the MESA_DEBUG environment variable if it hasn't
|
|
* been checked yet. We only have to check it once...
|
|
*/
|
|
if (debug == -1) {
|
|
char *env = _mesa_getenv("MESA_DEBUG");
|
|
|
|
/* In a debug build, we print warning messages *unless*
|
|
* MESA_DEBUG is 0. In a non-debug build, we don't
|
|
* print warning messages *unless* MESA_DEBUG is
|
|
* set *to any value*.
|
|
*/
|
|
#ifdef DEBUG
|
|
debug = (env != NULL && atoi(env) == 0) ? 0 : 1;
|
|
#else
|
|
debug = (env != NULL) ? 1 : 0;
|
|
#endif
|
|
}
|
|
|
|
/* Now only print the string if we're required to do so. */
|
|
if (debug) {
|
|
fprintf(stderr, "%s: %s", prefixString, outputString);
|
|
if (newline)
|
|
fprintf(stderr, "\n");
|
|
|
|
#if defined(_WIN32) && !defined(_WIN32_WCE)
|
|
/* stderr from windows applications without console is not usually
|
|
* visible, so communicate with the debugger instead */
|
|
{
|
|
char buf[4096];
|
|
_mesa_snprintf(buf, sizeof(buf), "%s: %s%s", prefixString, outputString, newline ? "\n" : "");
|
|
OutputDebugStringA(buf);
|
|
}
|
|
#endif
|
|
}
|
|
}
|
|
|
|
|
|
/**
|
|
* Return string version of GL error code.
|
|
*/
|
|
static const char *
|
|
error_string( GLenum error )
|
|
{
|
|
switch (error) {
|
|
case GL_NO_ERROR:
|
|
return "GL_NO_ERROR";
|
|
case GL_INVALID_VALUE:
|
|
return "GL_INVALID_VALUE";
|
|
case GL_INVALID_ENUM:
|
|
return "GL_INVALID_ENUM";
|
|
case GL_INVALID_OPERATION:
|
|
return "GL_INVALID_OPERATION";
|
|
case GL_STACK_OVERFLOW:
|
|
return "GL_STACK_OVERFLOW";
|
|
case GL_STACK_UNDERFLOW:
|
|
return "GL_STACK_UNDERFLOW";
|
|
case GL_OUT_OF_MEMORY:
|
|
return "GL_OUT_OF_MEMORY";
|
|
case GL_TABLE_TOO_LARGE:
|
|
return "GL_TABLE_TOO_LARGE";
|
|
case GL_INVALID_FRAMEBUFFER_OPERATION_EXT:
|
|
return "GL_INVALID_FRAMEBUFFER_OPERATION";
|
|
default:
|
|
return "unknown";
|
|
}
|
|
}
|
|
|
|
|
|
/**
|
|
* When a new type of error is recorded, print a message describing
|
|
* previous errors which were accumulated.
|
|
*/
|
|
static void
|
|
flush_delayed_errors( struct gl_context *ctx )
|
|
{
|
|
char s[MAXSTRING];
|
|
|
|
if (ctx->ErrorDebugCount) {
|
|
_mesa_snprintf(s, MAXSTRING, "%d similar %s errors",
|
|
ctx->ErrorDebugCount,
|
|
error_string(ctx->ErrorValue));
|
|
|
|
output_if_debug("Mesa", s, GL_TRUE);
|
|
|
|
ctx->ErrorDebugCount = 0;
|
|
}
|
|
}
|
|
|
|
|
|
/**
|
|
* Report a warning (a recoverable error condition) to stderr if
|
|
* either DEBUG is defined or the MESA_DEBUG env var is set.
|
|
*
|
|
* \param ctx GL context.
|
|
* \param fmtString printf()-like format string.
|
|
*/
|
|
void
|
|
_mesa_warning( struct gl_context *ctx, const char *fmtString, ... )
|
|
{
|
|
char str[MAXSTRING];
|
|
va_list args;
|
|
va_start( args, fmtString );
|
|
(void) vsnprintf( str, MAXSTRING, fmtString, args );
|
|
va_end( args );
|
|
|
|
if (ctx)
|
|
flush_delayed_errors( ctx );
|
|
|
|
output_if_debug("Mesa warning", str, GL_TRUE);
|
|
}
|
|
|
|
|
|
/**
|
|
* Report an internal implementation problem.
|
|
* Prints the message to stderr via fprintf().
|
|
*
|
|
* \param ctx GL context.
|
|
* \param fmtString problem description string.
|
|
*/
|
|
void
|
|
_mesa_problem( const struct gl_context *ctx, const char *fmtString, ... )
|
|
{
|
|
va_list args;
|
|
char str[MAXSTRING];
|
|
static int numCalls = 0;
|
|
|
|
(void) ctx;
|
|
|
|
if (numCalls < 50) {
|
|
numCalls++;
|
|
|
|
va_start( args, fmtString );
|
|
vsnprintf( str, MAXSTRING, fmtString, args );
|
|
va_end( args );
|
|
fprintf(stderr, "Mesa %s implementation error: %s\n",
|
|
MESA_VERSION_STRING, str);
|
|
fprintf(stderr, "Please report at bugs.freedesktop.org\n");
|
|
}
|
|
}
|
|
|
|
|
|
/**
|
|
* Record an OpenGL state error. These usually occur when the user
|
|
* passes invalid parameters to a GL function.
|
|
*
|
|
* If debugging is enabled (either at compile-time via the DEBUG macro, or
|
|
* run-time via the MESA_DEBUG environment variable), report the error with
|
|
* _mesa_debug().
|
|
*
|
|
* \param ctx the GL context.
|
|
* \param error the error value.
|
|
* \param fmtString printf() style format string, followed by optional args
|
|
*/
|
|
void
|
|
_mesa_error( struct gl_context *ctx, GLenum error, const char *fmtString, ... )
|
|
{
|
|
static GLint debug = -1;
|
|
|
|
/* Check debug environment variable only once:
|
|
*/
|
|
if (debug == -1) {
|
|
const char *debugEnv = _mesa_getenv("MESA_DEBUG");
|
|
|
|
#ifdef DEBUG
|
|
if (debugEnv && strstr(debugEnv, "silent"))
|
|
debug = GL_FALSE;
|
|
else
|
|
debug = GL_TRUE;
|
|
#else
|
|
if (debugEnv)
|
|
debug = GL_TRUE;
|
|
else
|
|
debug = GL_FALSE;
|
|
#endif
|
|
}
|
|
|
|
if (debug) {
|
|
if (ctx->ErrorValue == error &&
|
|
ctx->ErrorDebugFmtString == fmtString) {
|
|
ctx->ErrorDebugCount++;
|
|
}
|
|
else {
|
|
char s[MAXSTRING], s2[MAXSTRING];
|
|
va_list args;
|
|
|
|
flush_delayed_errors( ctx );
|
|
|
|
va_start(args, fmtString);
|
|
vsnprintf(s, MAXSTRING, fmtString, args);
|
|
va_end(args);
|
|
|
|
_mesa_snprintf(s2, MAXSTRING, "%s in %s", error_string(error), s);
|
|
output_if_debug("Mesa: User error", s2, GL_TRUE);
|
|
|
|
ctx->ErrorDebugFmtString = fmtString;
|
|
ctx->ErrorDebugCount = 0;
|
|
}
|
|
}
|
|
|
|
_mesa_record_error(ctx, error);
|
|
}
|
|
|
|
|
|
/**
|
|
* Report debug information. Print error message to stderr via fprintf().
|
|
* No-op if DEBUG mode not enabled.
|
|
*
|
|
* \param ctx GL context.
|
|
* \param fmtString printf()-style format string, followed by optional args.
|
|
*/
|
|
void
|
|
_mesa_debug( const struct gl_context *ctx, const char *fmtString, ... )
|
|
{
|
|
//#ifdef DEBUG
|
|
char s[MAXSTRING];
|
|
va_list args;
|
|
va_start(args, fmtString);
|
|
vsnprintf(s, MAXSTRING, fmtString, args);
|
|
va_end(args);
|
|
output_if_debug("Mesa", s, GL_FALSE);
|
|
//#endif /* DEBUG */
|
|
(void) ctx;
|
|
(void) fmtString;
|
|
}
|
|
|
|
/*@}*/
|