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authormarha <marha@users.sourceforge.net>2010-11-22 19:42:40 +0000
committermarha <marha@users.sourceforge.net>2010-11-22 19:42:40 +0000
commit85ef9930f56bf15181f9a0b238f03d55303cf411 (patch)
tree63b43286956ebd1c35c96e9b3d5305aabdf71a0f /mesalib/src/mesa/shader/slang/slang_mem.c
parent94810d19989336862251dbf69c3f3acb18a9b06d (diff)
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Updated to mesalib 7.9
Diffstat (limited to 'mesalib/src/mesa/shader/slang/slang_mem.c')
-rw-r--r--mesalib/src/mesa/shader/slang/slang_mem.c243
1 files changed, 0 insertions, 243 deletions
diff --git a/mesalib/src/mesa/shader/slang/slang_mem.c b/mesalib/src/mesa/shader/slang/slang_mem.c
deleted file mode 100644
index 5eaa7c442..000000000
--- a/mesalib/src/mesa/shader/slang/slang_mem.c
+++ /dev/null
@@ -1,243 +0,0 @@
-/*
- * Mesa 3-D graphics library
- * Version: 6.5.3
- *
- * Copyright (C) 2005-2007 Brian Paul All Rights Reserved.
- *
- * Permission is hereby granted, free of charge, to any person obtaining a
- * copy of this software and associated documentation files (the "Software"),
- * to deal in the Software without restriction, including without limitation
- * the rights to use, copy, modify, merge, publish, distribute, sublicense,
- * and/or sell copies of the Software, and to permit persons to whom the
- * Software is furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included
- * in all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
- * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
- * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
- * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
- * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
- */
-
-/**
- * \file slang_mem.c
- *
- * Memory manager for GLSL compiler. The general idea is to do all
- * allocations out of a large pool then just free the pool when done
- * compiling to avoid intricate malloc/free tracking and memory leaks.
- *
- * \author Brian Paul
- */
-
-#include "main/context.h"
-#include "main/macros.h"
-#include "slang_mem.h"
-
-
-#define GRANULARITY 8
-#define ROUND_UP(B) ( ((B) + (GRANULARITY - 1)) & ~(GRANULARITY - 1) )
-
-
-/** If 1, use conventional malloc/free. Helpful for debugging */
-#define USE_MALLOC_FREE 0
-
-
-struct slang_mempool_
-{
- GLuint Size, Used, Count, Largest;
- char *Data;
- struct slang_mempool_ *Next;
-};
-
-
-slang_mempool *
-_slang_new_mempool(GLuint initialSize)
-{
- slang_mempool *pool = (slang_mempool *) calloc(1, sizeof(slang_mempool));
- if (pool) {
- pool->Data = (char *) calloc(1, initialSize);
- /*printf("ALLOC MEMPOOL %d at %p\n", initialSize, pool->Data);*/
- if (!pool->Data) {
- free(pool);
- return NULL;
- }
- pool->Size = initialSize;
- pool->Used = 0;
- }
- return pool;
-}
-
-
-void
-_slang_delete_mempool(slang_mempool *pool)
-{
- GLuint total = 0;
- while (pool) {
- slang_mempool *next = pool->Next;
- /*
- printf("DELETE MEMPOOL %u / %u count=%u largest=%u\n",
- pool->Used, pool->Size, pool->Count, pool->Largest);
- */
- total += pool->Used;
- free(pool->Data);
- free(pool);
- pool = next;
- }
- /*printf("TOTAL ALLOCATED: %u\n", total);*/
-}
-
-
-#ifdef DEBUG
-static void
-check_zero(const char *addr, GLuint n)
-{
- GLuint i;
- for (i = 0; i < n; i++) {
- assert(addr[i]==0);
- }
-}
-#endif
-
-
-#ifdef DEBUG
-static GLboolean
-is_valid_address(const slang_mempool *pool, void *addr)
-{
- while (pool) {
- if ((char *) addr >= pool->Data &&
- (char *) addr < pool->Data + pool->Used)
- return GL_TRUE;
-
- pool = pool->Next;
- }
- return GL_FALSE;
-}
-#endif
-
-
-/**
- * Alloc 'bytes' from shader mempool.
- */
-void *
-_slang_alloc(GLuint bytes)
-{
-#if USE_MALLOC_FREE
- return calloc(1, bytes);
-#else
- slang_mempool *pool;
- GET_CURRENT_CONTEXT(ctx);
- pool = (slang_mempool *) ctx->Shader.MemPool;
-
- if (bytes == 0)
- bytes = 1;
-
- while (pool) {
- if (pool->Used + bytes <= pool->Size) {
- /* found room */
- void *addr = (void *) (pool->Data + pool->Used);
-#ifdef DEBUG
- check_zero((char*) addr, bytes);
-#endif
- pool->Used += ROUND_UP(bytes);
- pool->Largest = MAX2(pool->Largest, bytes);
- pool->Count++;
- /*printf("alloc %u Used %u\n", bytes, pool->Used);*/
- return addr;
- }
- else if (pool->Next) {
- /* try next block */
- pool = pool->Next;
- }
- else {
- /* alloc new pool */
- const GLuint sz = MAX2(bytes, pool->Size);
- pool->Next = _slang_new_mempool(sz);
- if (!pool->Next) {
- /* we're _really_ out of memory */
- return NULL;
- }
- else {
- pool = pool->Next;
- pool->Largest = bytes;
- pool->Count++;
- pool->Used = ROUND_UP(bytes);
-#ifdef DEBUG
- check_zero((char*) pool->Data, bytes);
-#endif
- return (void *) pool->Data;
- }
- }
- }
- return NULL;
-#endif
-}
-
-
-void *
-_slang_realloc(void *oldBuffer, GLuint oldSize, GLuint newSize)
-{
-#if USE_MALLOC_FREE
- return _mesa_realloc(oldBuffer, oldSize, newSize);
-#else
- GET_CURRENT_CONTEXT(ctx);
- slang_mempool *pool = (slang_mempool *) ctx->Shader.MemPool;
- (void) pool;
-
- if (newSize < oldSize) {
- return oldBuffer;
- }
- else {
- const GLuint copySize = (oldSize < newSize) ? oldSize : newSize;
- void *newBuffer = _slang_alloc(newSize);
-
- if (oldBuffer)
- ASSERT(is_valid_address(pool, oldBuffer));
-
- if (newBuffer && oldBuffer && copySize > 0)
- memcpy(newBuffer, oldBuffer, copySize);
-
- return newBuffer;
- }
-#endif
-}
-
-
-/**
- * Clone string, storing in current mempool.
- */
-char *
-_slang_strdup(const char *s)
-{
- if (s) {
- size_t l = strlen(s);
- char *s2 = (char *) _slang_alloc(l + 1);
- if (s2)
- strcpy(s2, s);
- return s2;
- }
- else {
- return NULL;
- }
-}
-
-
-/**
- * Don't actually free memory, but mark it (for debugging).
- */
-void
-_slang_free(void *addr)
-{
-#if USE_MALLOC_FREE
- free(addr);
-#else
- if (addr) {
- GET_CURRENT_CONTEXT(ctx);
- slang_mempool *pool = (slang_mempool *) ctx->Shader.MemPool;
- (void) pool;
- ASSERT(is_valid_address(pool, addr));
- }
-#endif
-}