Imported nx-X11-3.1.0-1.tar.gznx-X11/3.1.0-1

Summary: Imported nx-X11-3.1.0-1.tar.gz
Keywords:

Imported nx-X11-3.1.0-1.tar.gz
into Git repository

1 files changed, 115 insertions, 0 deletions

diff --git a/nx-X11/extras/Mesa/src/mesa/main/mm.h b/nx-X11/extras/Mesa/src/mesa/main/mm.h
new file mode 100644
index 000000000..33c986b4c
--- /dev/null
+++ b/nx-X11/extras/Mesa/src/mesa/main/mm.h
@@ -0,0 +1,115 @@
+/*
+ * GLX Hardware Device Driver common code
+ * Copyright (C) 1999 Keith Whitwell
+ *
+ * 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
+ * KEITH WHITWELL, OR ANY OTHER CONTRIBUTORS 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.
+ */
+
+
+/**
+ * Memory manager code.  Primarily used by device drivers to manage texture
+ * heaps, etc.
+ */
+
+
+#ifndef MM_H
+#define MM_H
+
+
+#include "imports.h"
+
+
+struct mem_block_t {
+  struct mem_block_t *next;
+  struct mem_block_t *heap;
+  int ofs,size;
+  int align;
+  unsigned int free:1;
+  unsigned int reserved:1;
+};
+
+typedef struct mem_block_t TMemBlock;
+
+typedef struct mem_block_t *PMemBlock;
+
+/* a heap is just the first block in a chain */
+typedef struct mem_block_t memHeap_t;
+
+
+/* XXX are these needed? */
+#if 0
+static INLINE int
+mmBlockSize(PMemBlock b)
+{
+   return b->size;
+}
+
+static INLINE int
+mmOffset(PMemBlock b)
+{
+   return b->ofs;
+}
+#endif
+
+
+
+/** 
+ * input: total size in bytes
+ * return: a heap pointer if OK, NULL if error
+ */
+extern memHeap_t *mmInit(int ofs, int size);
+
+/**
+ * Allocate 'size' bytes with 2^align2 bytes alignment,
+ * restrict the search to free memory after 'startSearch'
+ * depth and back buffers should be in different 4mb banks
+ * to get better page hits if possible
+ * input:	size = size of block
+ *       	align2 = 2^align2 bytes alignment
+ *		startSearch = linear offset from start of heap to begin search
+ * return: pointer to the allocated block, 0 if error
+ */
+extern PMemBlock mmAllocMem(memHeap_t *heap, int size, int align2, 
+                            int startSearch);
+
+/**
+ * Free block starts at offset
+ * input: pointer to a block
+ * return: 0 if OK, -1 if error
+ */
+extern int mmFreeMem(PMemBlock b);
+
+/**
+ * Free block starts at offset
+ * input: pointer to a heap, start offset
+ * return: pointer to a block
+ */
+extern PMemBlock mmFindBlock(memHeap_t *heap, int start);
+
+/**
+ * destroy MM
+ */
+extern void mmDestroy(memHeap_t *mmInit);
+
+/**
+ * For debuging purpose.
+ */
+extern void mmDumpMemInfo(const memHeap_t *mmInit);
+
+#endif