From 6fda93be42ace9eeab0e82ceebb6798961c9105c Mon Sep 17 00:00:00 2001
From: marha <marha@users.sourceforge.net>
Date: Tue, 23 Nov 2010 21:46:41 +0000
Subject: Added missing files from mesalib 7.9
---
mesalib/src/mapi/mapi/entry.c | 65 +++++
mesalib/src/mapi/mapi/entry.h | 49 ++++
mesalib/src/mapi/mapi/entry_x86-64_tls.h | 97 ++++++++
mesalib/src/mapi/mapi/entry_x86_tls.h | 120 +++++++++
mesalib/src/mapi/mapi/entry_x86_tsd.h | 89 +++++++
mesalib/src/mapi/mapi/mapi.c | 191 +++++++++++++++
mesalib/src/mapi/mapi/mapi.h | 66 +++++
mesalib/src/mapi/mapi/mapi_abi.py | 402 +++++++++++++++++++++++++++++++
mesalib/src/mapi/mapi/mapi_tmp.h | 211 ++++++++++++++++
mesalib/src/mapi/mapi/sources.mak | 19 ++
mesalib/src/mapi/mapi/stub.c | 180 ++++++++++++++
mesalib/src/mapi/mapi/stub.h | 52 ++++
mesalib/src/mapi/mapi/table.c | 56 +++++
mesalib/src/mapi/mapi/table.h | 76 ++++++
mesalib/src/mapi/mapi/u_compiler.h | 48 ++++
mesalib/src/mapi/mapi/u_current.c | 277 +++++++++++++++++++++
mesalib/src/mapi/mapi/u_current.h | 102 ++++++++
mesalib/src/mapi/mapi/u_execmem.c | 145 +++++++++++
mesalib/src/mapi/mapi/u_execmem.h | 7 +
mesalib/src/mapi/mapi/u_macros.h | 12 +
mesalib/src/mapi/mapi/u_thread.c | 254 +++++++++++++++++++
mesalib/src/mapi/mapi/u_thread.h | 201 ++++++++++++++++
22 files changed, 2719 insertions(+)
create mode 100644 mesalib/src/mapi/mapi/entry.c
create mode 100644 mesalib/src/mapi/mapi/entry.h
create mode 100644 mesalib/src/mapi/mapi/entry_x86-64_tls.h
create mode 100644 mesalib/src/mapi/mapi/entry_x86_tls.h
create mode 100644 mesalib/src/mapi/mapi/entry_x86_tsd.h
create mode 100644 mesalib/src/mapi/mapi/mapi.c
create mode 100644 mesalib/src/mapi/mapi/mapi.h
create mode 100644 mesalib/src/mapi/mapi/mapi_abi.py
create mode 100644 mesalib/src/mapi/mapi/mapi_tmp.h
create mode 100644 mesalib/src/mapi/mapi/sources.mak
create mode 100644 mesalib/src/mapi/mapi/stub.c
create mode 100644 mesalib/src/mapi/mapi/stub.h
create mode 100644 mesalib/src/mapi/mapi/table.c
create mode 100644 mesalib/src/mapi/mapi/table.h
create mode 100644 mesalib/src/mapi/mapi/u_compiler.h
create mode 100644 mesalib/src/mapi/mapi/u_current.c
create mode 100644 mesalib/src/mapi/mapi/u_current.h
create mode 100644 mesalib/src/mapi/mapi/u_execmem.c
create mode 100644 mesalib/src/mapi/mapi/u_execmem.h
create mode 100644 mesalib/src/mapi/mapi/u_macros.h
create mode 100644 mesalib/src/mapi/mapi/u_thread.c
create mode 100644 mesalib/src/mapi/mapi/u_thread.h
(limited to 'mesalib/src')
diff --git a/mesalib/src/mapi/mapi/entry.c b/mesalib/src/mapi/mapi/entry.c
new file mode 100644
index 000000000..fdf2a89c5
--- /dev/null
+++ b/mesalib/src/mapi/mapi/entry.c
@@ -0,0 +1,65 @@
+/*
+ * Mesa 3-D graphics library
+ * Version: 7.9
+ *
+ * Copyright (C) 2010 LunarG Inc.
+ *
+ * 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
+ * THE AUTHORS OR COPYRIGHT HOLDERS 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.
+ *
+ * Authors:
+ * Chia-I Wu <olv@lunarg.com>
+ */
+
+#include "entry.h"
+
+#if defined(USE_X86_ASM) && defined(__GNUC__)
+# ifdef GLX_USE_TLS
+# include "entry_x86_tls.h"
+# else
+# include "entry_x86_tsd.h"
+# endif
+#elif defined(USE_X86_64_ASM) && defined(__GNUC__) && defined(GLX_USE_TLS)
+# include "entry_x86-64_tls.h"
+#else
+
+#include <stdlib.h>
+#include "u_current.h"
+#include "table.h"
+
+/* C version of the public entries */
+#define MAPI_TMP_PUBLIC_ENTRIES
+#include "mapi_tmp.h"
+
+void
+entry_patch_public(void)
+{
+}
+
+mapi_func
+entry_generate(int slot)
+{
+ return NULL;
+}
+
+void
+entry_patch(mapi_func entry, int slot)
+{
+}
+
+#endif /* asm */
diff --git a/mesalib/src/mapi/mapi/entry.h b/mesalib/src/mapi/mapi/entry.h
new file mode 100644
index 000000000..48ed3f9ec
--- /dev/null
+++ b/mesalib/src/mapi/mapi/entry.h
@@ -0,0 +1,49 @@
+/*
+ * Mesa 3-D graphics library
+ * Version: 7.9
+ *
+ * Copyright (C) 2010 LunarG Inc.
+ *
+ * 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
+ * THE AUTHORS OR COPYRIGHT HOLDERS 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.
+ *
+ * Authors:
+ * Chia-I Wu <olv@lunarg.com>
+ */
+
+#ifndef _ENTRY_H_
+#define _ENTRY_H_
+
+#include "u_compiler.h"
+#include "stub.h"
+
+/* declare public entries */
+#define MAPI_TMP_DEFINES
+#define MAPI_TMP_PUBLIC_DECLARES
+#include "mapi_tmp.h"
+
+void
+entry_patch_public(void);
+
+mapi_func
+entry_generate(int slot);
+
+void
+entry_patch(mapi_func entry, int slot);
+
+#endif /* _ENTRY_H_ */
diff --git a/mesalib/src/mapi/mapi/entry_x86-64_tls.h b/mesalib/src/mapi/mapi/entry_x86-64_tls.h
new file mode 100644
index 000000000..2fbe73b5b
--- /dev/null
+++ b/mesalib/src/mapi/mapi/entry_x86-64_tls.h
@@ -0,0 +1,97 @@
+/*
+ * Mesa 3-D graphics library
+ * Version: 7.9
+ *
+ * Copyright (C) 2010 LunarG Inc.
+ *
+ * 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
+ * THE AUTHORS OR COPYRIGHT HOLDERS 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.
+ *
+ * Authors:
+ * Chia-I Wu <olv@lunarg.com>
+ */
+
+#include <string.h>
+#include "u_execmem.h"
+#include "u_macros.h"
+
+__asm__(".text");
+
+__asm__("x86_64_current_tls:\n\t"
+ "movq u_current_table_tls@GOTTPOFF(%rip), %rax\n\t"
+ "ret");
+
+#define STUB_ASM_ENTRY(func) \
+ ".globl " func "\n" \
+ ".type " func ", @function\n" \
+ ".balign 32\n" \
+ func ":"
+
+#define STUB_ASM_CODE(slot) \
+ "movq u_current_table_tls@GOTTPOFF(%rip), %rax\n\t" \
+ "movq %fs:(%rax), %r11\n\t" \
+ "jmp *(8 * " slot ")(%r11)"
+
+#define MAPI_TMP_STUB_ASM_GCC
+#include "mapi_tmp.h"
+
+extern unsigned long
+x86_64_current_tls();
+
+void
+entry_patch_public(void)
+{
+}
+
+void
+entry_patch(mapi_func entry, int slot)
+{
+ char *code = (char *) entry;
+ *((unsigned int *) (code + 12)) = slot * sizeof(mapi_func);
+}
+
+mapi_func
+entry_generate(int slot)
+{
+ const char code_templ[16] = {
+ /* movq %fs:0, %r11 */
+ 0x64, 0x4c, 0x8b, 0x1c, 0x25, 0x00, 0x00, 0x00, 0x00,
+ /* jmp *0x1234(%r11) */
+ 0x41, 0xff, 0xa3, 0x34, 0x12, 0x00, 0x00,
+ };
+ unsigned long addr;
+ void *code;
+ mapi_func entry;
+
+ addr = x86_64_current_tls();
+ if ((addr >> 32) != 0xffffffff)
+ return NULL;
+ addr &= 0xffffffff;
+
+ code = u_execmem_alloc(sizeof(code_templ));
+ if (!code)
+ return NULL;
+
+ memcpy(code, code_templ, sizeof(code_templ));
+
+ *((unsigned int *) (code + 5)) = addr;
+ entry = (mapi_func) code;
+ entry_patch(entry, slot);
+
+ return entry;
+}
diff --git a/mesalib/src/mapi/mapi/entry_x86_tls.h b/mesalib/src/mapi/mapi/entry_x86_tls.h
new file mode 100644
index 000000000..d4f7d98cf
--- /dev/null
+++ b/mesalib/src/mapi/mapi/entry_x86_tls.h
@@ -0,0 +1,120 @@
+/*
+ * Mesa 3-D graphics library
+ * Version: 7.9
+ *
+ * Copyright (C) 2010 LunarG Inc.
+ *
+ * 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
+ * THE AUTHORS OR COPYRIGHT HOLDERS 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.
+ *
+ * Authors:
+ * Chia-I Wu <olv@lunarg.com>
+ */
+
+#include <string.h>
+#include "u_execmem.h"
+#include "u_macros.h"
+
+__asm__(".text");
+
+__asm__("x86_current_tls:\n\t"
+ "call 1f\n"
+ "1:\n\t"
+ "popl %eax\n\t"
+ "addl $_GLOBAL_OFFSET_TABLE_+[.-1b], %eax\n\t"
+ "movl u_current_table_tls@GOTNTPOFF(%eax), %eax\n\t"
+ "ret");
+
+#ifndef GLX_X86_READONLY_TEXT
+__asm__(".section wtext, \"awx\", @progbits\n"
+ ".balign 16\n"
+ "x86_entry_start:");
+#endif /* GLX_X86_READONLY_TEXT */
+
+#define STUB_ASM_ENTRY(func) \
+ ".globl " func "\n" \
+ ".type " func ", @function\n" \
+ ".balign 16\n" \
+ func ":"
+
+#define STUB_ASM_CODE(slot) \
+ "call x86_current_tls\n\t" \
+ "movl %gs:(%eax), %eax\n\t" \
+ "jmp *(4 * " slot ")(%eax)"
+
+#define MAPI_TMP_STUB_ASM_GCC
+#include "mapi_tmp.h"
+
+#ifndef GLX_X86_READONLY_TEXT
+__asm__(".balign 16\n"
+ "x86_entry_end:");
+__asm__(".text");
+#endif /* GLX_X86_READONLY_TEXT */
+
+extern unsigned long
+x86_current_tls();
+
+void
+entry_patch_public(void)
+{
+#ifndef GLX_X86_READONLY_TEXT
+ extern char x86_entry_start[];
+ extern char x86_entry_end[];
+ char patch[8] = {
+ 0x65, 0xa1, 0x00, 0x00, 0x00, 0x00, /* movl %gs:0x0, %eax */
+ 0x90, 0x90 /* nop's */
+ };
+ char *entry;
+
+ *((unsigned long *) (patch + 2)) = x86_current_tls();
+
+ for (entry = x86_entry_start; entry < x86_entry_end; entry += 16)
+ memcpy(entry, patch, sizeof(patch));
+#endif
+}
+
+void
+entry_patch(mapi_func entry, int slot)
+{
+ char *code = (char *) entry;
+ *((unsigned long *) (code + 8)) = slot * sizeof(mapi_func);
+}
+
+mapi_func
+entry_generate(int slot)
+{
+ const char code_templ[16] = {
+ 0x65, 0xa1, 0x00, 0x00, 0x00, 0x00, /* movl %gs:0x0, %eax */
+ 0xff, 0xa0, 0x34, 0x12, 0x00, 0x00, /* jmp *0x1234(%eax) */
+ 0x90, 0x90, 0x90, 0x90 /* nop's */
+ };
+ void *code;
+ mapi_func entry;
+
+ code = u_execmem_alloc(sizeof(code_templ));
+ if (!code)
+ return NULL;
+
+ memcpy(code, code_templ, sizeof(code_templ));
+
+ *((unsigned long *) (code + 2)) = x86_current_tls();
+ entry = (mapi_func) code;
+ entry_patch(entry, slot);
+
+ return entry;
+}
diff --git a/mesalib/src/mapi/mapi/entry_x86_tsd.h b/mesalib/src/mapi/mapi/entry_x86_tsd.h
new file mode 100644
index 000000000..f37c7473a
--- /dev/null
+++ b/mesalib/src/mapi/mapi/entry_x86_tsd.h
@@ -0,0 +1,89 @@
+/*
+ * Mesa 3-D graphics library
+ * Version: 7.9
+ *
+ * Copyright (C) 2010 LunarG Inc.
+ *
+ * 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
+ * THE AUTHORS OR COPYRIGHT HOLDERS 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.
+ *
+ * Authors:
+ * Chia-I Wu <olv@lunarg.com>
+ */
+
+#include <string.h>
+#include "u_execmem.h"
+#include "u_macros.h"
+
+#define X86_ENTRY_SIZE 32
+
+__asm__(".text");
+
+#define STUB_ASM_ENTRY(func) \
+ ".globl " func "\n" \
+ ".type " func ", @function\n" \
+ ".balign 32\n" \
+ func ":"
+
+#define STUB_ASM_CODE(slot) \
+ "movl u_current_table, %eax\n\t" \
+ "testl %eax, %eax\n\t" \
+ "je 1f\n\t" \
+ "jmp *(4 * " slot ")(%eax)\n" \
+ "1:\n\t" \
+ "call u_current_get_internal\n\t"\
+ "jmp *(4 * " slot ")(%eax)"
+
+#define MAPI_TMP_STUB_ASM_GCC
+#include "mapi_tmp.h"
+
+__asm__(".balign 32\n"
+ "x86_entry_end:");
+
+void
+entry_patch_public(void)
+{
+}
+
+void
+entry_patch(mapi_func entry, int slot)
+{
+ char *code = (char *) entry;
+
+ *((unsigned long *) (code + 11)) = slot * sizeof(mapi_func);
+ *((unsigned long *) (code + 22)) = slot * sizeof(mapi_func);
+}
+
+mapi_func
+entry_generate(int slot)
+{
+ extern const char x86_entry_end[];
+ const char *code_templ = x86_entry_end - X86_ENTRY_SIZE;
+ void *code;
+ mapi_func entry;
+
+ code = u_execmem_alloc(X86_ENTRY_SIZE);
+ if (!code)
+ return NULL;
+
+ memcpy(code, code_templ, X86_ENTRY_SIZE);
+ entry = (mapi_func) code;
+ entry_patch(entry, slot);
+
+ return entry;
+}
diff --git a/mesalib/src/mapi/mapi/mapi.c b/mesalib/src/mapi/mapi/mapi.c
new file mode 100644
index 000000000..2f1c3fff6
--- /dev/null
+++ b/mesalib/src/mapi/mapi/mapi.c
@@ -0,0 +1,191 @@
+/*
+ * Mesa 3-D graphics library
+ * Version: 7.9
+ *
+ * Copyright (C) 2010 LunarG Inc.
+ *
+ * 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
+ * THE AUTHORS OR COPYRIGHT HOLDERS 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.
+ *
+ * Authors:
+ * Chia-I Wu <olv@lunarg.com>
+ */
+
+#include <stdlib.h>
+#include <string.h>
+
+#include "u_current.h"
+#include "u_thread.h"
+#include "mapi.h"
+#include "stub.h"
+#include "table.h"
+
+/* dynamic stubs will run out before this array */
+#define MAPI_MAX_STUBS (sizeof(struct mapi_table) / sizeof(mapi_func))
+static const struct mapi_stub *mapi_stub_map[MAPI_MAX_STUBS];
+static int mapi_num_stubs;
+
+static const struct mapi_stub *
+get_stub(const char *name, const struct mapi_stub *alias)
+{
+ const struct mapi_stub *stub;
+
+ stub = stub_find_public(name);
+ if (!stub) {
+ struct mapi_stub *dyn = stub_find_dynamic(name, 1);
+ if (dyn) {
+ stub_fix_dynamic(dyn, alias);
+ stub = dyn;
+ }
+ }
+
+ return stub;
+}
+
+/**
+ * Initialize mapi. spec consists of NULL-separated strings. The first string
+ * denotes the version. It is followed by variable numbers of entries. Each
+ * entry can have multiple names. An empty name terminates an entry. An empty
+ * entry terminates the spec. A spec of two entries, Foo and Bar, is as
+ * follows
+ *
+ * "1\0"
+ * "Foo\0"
+ * "FooEXT\0"
+ * "\0"
+ * "Bar\0"
+ * "\0"
+ */
+void
+mapi_init(const char *spec)
+{
+ u_mutex_declare_static(mutex);
+ const char *p;
+ int ver, count;
+
+ u_mutex_lock(mutex);
+
+ /* already initialized */
+ if (mapi_num_stubs) {
+ u_mutex_unlock(mutex);
+ return;
+ }
+
+ count = 0;
+ p = spec;
+
+ /* parse version string */
+ ver = atoi(p);
+ if (ver != 1) {
+ u_mutex_unlock(mutex);
+ return;
+ }
+ p += strlen(p) + 1;
+
+ while (*p) {
+ const struct mapi_stub *stub;
+
+ stub = get_stub(p, NULL);
+ /* out of dynamic entries */
+ if (!stub)
+ break;
+ p += strlen(p) + 1;
+
+ while (*p) {
+ get_stub(p, stub);
+ p += strlen(p) + 1;
+ }
+
+ mapi_stub_map[count++] = stub;
+ p++;
+ }
+
+ mapi_num_stubs = count;
+
+ u_mutex_unlock(mutex);
+}
+
+/**
+ * Return the address of an entry. Optionally generate the entry if it does
+ * not exist.
+ */
+mapi_proc
+mapi_get_proc_address(const char *name)
+{
+ const struct mapi_stub *stub;
+
+ stub = stub_find_public(name);
+ if (!stub)
+ stub = stub_find_dynamic(name, 0);
+
+ return (stub) ? (mapi_proc) stub->addr : NULL;
+}
+
+/**
+ * Create a dispatch table.
+ */
+struct mapi_table *
+mapi_table_create(void)
+{
+ const struct mapi_table *noop = table_get_noop();
+ struct mapi_table *tbl;
+
+ tbl = malloc(sizeof(*tbl));
+ if (tbl)
+ memcpy(tbl, noop, sizeof(*tbl));
+
+ return tbl;
+}
+
+/**
+ * Destroy a dispatch table.
+ */
+void
+mapi_table_destroy(struct mapi_table *tbl)
+{
+ free(tbl);
+}
+
+/**
+ * Fill a dispatch table. The order of the procs is determined when mapi_init
+ * is called.
+ */
+void
+mapi_table_fill(struct mapi_table *tbl, const mapi_proc *procs)
+{
+ const struct mapi_table *noop = table_get_noop();
+ int i;
+
+ for (i = 0; i < mapi_num_stubs; i++) {
+ const struct mapi_stub *stub = mapi_stub_map[i];
+ mapi_func func = (mapi_func) procs[i];
+
+ if (!func)
+ func = table_get_func(noop, stub);
+ table_set_func(tbl, stub, func);
+ }
+}
+
+/**
+ * Make a dispatch table current.
+ */
+void
+mapi_table_make_current(const struct mapi_table *tbl)
+{
+ u_current_set(tbl);
+}
diff --git a/mesalib/src/mapi/mapi/mapi.h b/mesalib/src/mapi/mapi/mapi.h
new file mode 100644
index 000000000..c7e43e22e
--- /dev/null
+++ b/mesalib/src/mapi/mapi/mapi.h
@@ -0,0 +1,66 @@
+/*
+ * Mesa 3-D graphics library
+ * Version: 7.9
+ *
+ * Copyright (C) 2010 LunarG Inc.
+ *
+ * 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
+ * THE AUTHORS OR COPYRIGHT HOLDERS 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.
+ *
+ * Authors:
+ * Chia-I Wu <olv@lunarg.com>
+ */
+
+#ifndef _MAPI_H_
+#define _MAPI_H_
+
+#include "u_compiler.h"
+
+#ifdef _WIN32
+#ifdef MAPI_DLL_EXPORTS
+#define MAPI_EXPORT __declspec(dllexport)
+#else
+#define MAPI_EXPORT __declspec(dllimport)
+#endif
+#else /* _WIN32 */
+#define MAPI_EXPORT PUBLIC
+#endif
+
+typedef void (*mapi_proc)(void);
+
+struct mapi_table;
+
+MAPI_EXPORT void
+mapi_init(const char *spec);
+
+MAPI_EXPORT mapi_proc
+mapi_get_proc_address(const char *name);
+
+MAPI_EXPORT struct mapi_table *
+mapi_table_create(void);
+
+MAPI_EXPORT void
+mapi_table_destroy(struct mapi_table *tbl);
+
+MAPI_EXPORT void
+mapi_table_fill(struct mapi_table *tbl, const mapi_proc *procs);
+
+MAPI_EXPORT void
+mapi_table_make_current(const struct mapi_table *tbl);
+
+#endif /* _MAPI_H_ */
diff --git a/mesalib/src/mapi/mapi/mapi_abi.py b/mesalib/src/mapi/mapi/mapi_abi.py
new file mode 100644
index 000000000..440eb4bb9
--- /dev/null
+++ b/mesalib/src/mapi/mapi/mapi_abi.py
@@ -0,0 +1,402 @@
+#!/usr/bin/env python
+
+# Mesa 3-D graphics library
+# Version: 7.9
+#
+# Copyright (C) 2010 LunarG Inc.
+#
+# 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
+# THE AUTHORS OR COPYRIGHT HOLDERS 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.
+#
+# Authors:
+# Chia-I Wu <olv@lunarg.com>
+
+import sys
+import re
+from optparse import OptionParser
+
+# number of dynamic entries
+ABI_NUM_DYNAMIC_ENTRIES = 256
+
+class ABIEntry(object):
+ """Represent an ABI entry."""
+
+ _match_c_param = re.compile(
+ '^(?P<type>[\w\s*]+?)(?P<name>\w+)(\[(?P<array>\d+)\])?$')
+
+ def __init__(self, cols, attrs):
+ self._parse(cols)
+
+ self.slot = attrs['slot']
+ self.hidden = attrs['hidden']
+ self.alias = attrs['alias']
+
+ def c_prototype(self):
+ return '%s %s(%s)' % (self.c_return(), self.name, self.c_params())
+
+ def c_return(self):
+ ret = self.ret
+ if not ret:
+ ret = 'void'
+
+ return ret
+
+ def c_params(self):
+ """Return the parameter list used in the entry prototype."""
+ c_params = []
+ for t, n, a in self.params:
+ sep = '' if t.endswith('*') else ' '
+ arr = '[%d]' % a if a else ''
+ c_params.append(t + sep + n + arr)
+ if not c_params:
+ c_params.append('void')
+
+ return ", ".join(c_params)
+
+ def c_args(self):
+ """Return the argument list used in the entry invocation."""
+ c_args = []
+ for t, n, a in self.params:
+ c_args.append(n)
+
+ return ", ".join(c_args)
+
+ def _parse(self, cols):
+ ret = cols.pop(0)
+ if ret == 'void':
+ ret = None
+
+ name = cols.pop(0)
+
+ params = []
+ if not cols:
+ raise Exception(cols)
+ elif len(cols) == 1 and cols[0] == 'void':
+ pass
+ else:
+ for val in cols:
+ params.append(self._parse_param(val))
+
+ self.ret = ret
+ self.name = name
+ self.params = params
+
+ def _parse_param(self, c_param):
+ m = self._match_c_param.match(c_param)
+ if not m:
+ raise Exception('unrecognized param ' + c_param)
+
+ c_type = m.group('type').strip()
+ c_name = m.group('name')
+ c_array = m.group('array')
+ c_array = int(c_array) if c_array else 0
+
+ return (c_type, c_name, c_array)
+
+ def __str__(self):
+ return self.c_prototype()
+
+ def __cmp__(self, other):
+ # compare slot, alias, and then name
+ res = cmp(self.slot, other.slot)
+ if not res:
+ if not self.alias:
+ res = -1
+ elif not other.alias:
+ res = 1
+
+ if not res:
+ res = cmp(self.name, other.name)
+
+ return res
+
+def abi_parse_line(line):
+ cols = [col.strip() for col in line.split(',')]
+
+ attrs = {
+ 'slot': -1,
+ 'hidden': False,
+ 'alias': None,
+ }
+
+ # extract attributes from the first column
+ vals = cols[0].split(':')
+ while len(vals) > 1:
+ val = vals.pop(0)
+ if val.startswith('slot='):
+ attrs['slot'] = int(val[5:])
+ elif val == 'hidden':
+ attrs['hidden'] = True
+ elif val.startswith('alias='):
+ attrs['alias'] = val[6:]
+ elif not val:
+ pass
+ else:
+ raise Exception('unknown attribute %s' % val)
+ cols[0] = vals[0]
+
+ return (attrs, cols)
+
+def abi_parse(filename):
+ """Parse a CSV file for ABI entries."""
+ fp = open(filename) if filename != '-' else sys.stdin
+ lines = [line.strip() for line in fp.readlines()
+ if not line.startswith('#') and line.strip()]
+
+ entry_dict = {}
+ next_slot = 0
+ for line in lines:
+ attrs, cols = abi_parse_line(line)
+
+ # post-process attributes
+ if attrs['alias']:
+ try:
+ ent = entry_dict[attrs['alias']]
+ slot = ent.slot
+ except KeyError:
+ raise Exception('failed to alias %s' % attrs['alias'])
+ else:
+ slot = next_slot
+ next_slot += 1
+
+ if attrs['slot'] < 0:
+ attrs['slot'] = slot
+ elif attrs['slot'] != slot:
+ raise Exception('invalid slot in %s' % (line))
+
+ ent = ABIEntry(cols, attrs)
+ if entry_dict.has_key(ent.name):
+ raise Exception('%s is duplicated' % (ent.name))
+ entry_dict[ent.name] = ent
+
+ entries = entry_dict.values()
+ entries.sort()
+
+ # sanity check
+ i = 0
+ for slot in xrange(next_slot):
+ if entries[i].slot != slot:
+ raise Exception('entries are not ordered by slots')
+ if entries[i].alias:
+ raise Exception('first entry of slot %d aliases %s'
+ % (slot, entries[i].alias))
+ while i < len(entries) and entries[i].slot == slot:
+ i += 1
+ if i < len(entries):
+ raise Exception('there are %d invalid entries' % (len(entries) - 1))
+
+ return entries
+
+def abi_dynamics():
+ """Return the dynamic entries."""
+ entries = []
+ for i in xrange(ABI_NUM_DYNAMIC_ENTRIES):
+ cols = ['void', 'dynamic%d' % (i), 'void']
+ attrs = { 'slot': -1, 'hidden': False, 'alias': None }
+ entries.append(ABIEntry(cols, attrs))
+ return entries
+
+class ABIPrinter(object):
+ """ABIEntry Printer"""
+
+ def __init__(self, entries, options):
+ self.entries = entries
+ self.options = options
+ self._undefs = []
+
+ def _add_undefs(self, undefs):
+ self._undefs.extend(undefs)
+
+ def output_header(self):
+ print '/* This file is automatically generated. Do not modify. */'
+ print
+
+ def output_footer(self):
+ print '/* clean up */'
+ for m in self._undefs:
+ print '#undef %s' % (m)
+
+ def output_entry(self, ent):
+ if ent.slot < 0:
+ out_ent = 'MAPI_DYNAMIC_ENTRY(%s, %s, (%s))' % \
+ (ent.c_return(), ent.name, ent.c_params())
+ out_code = ''
+ else:
+ if ent.alias:
+ macro_ent = 'MAPI_ALIAS_ENTRY'
+ macro_code = 'MAPI_ALIAS_CODE'
+ else:
+ macro_ent = 'MAPI_ABI_ENTRY'
+ macro_code = 'MAPI_ABI_CODE'
+
+ if ent.ret:
+ macro_code += '_RETURN'
+ if ent.hidden:
+ macro_ent += '_HIDDEN'
+ macro_code += '_HIDDEN'
+
+ if ent.alias:
+ out_ent = '%s(%s, %s, %s, (%s))' % (macro_ent,
+ ent.alias, ent.c_return(), ent.name, ent.c_params())
+ out_code = '%s(%s, %s, %s, (%s))' % (macro_code,
+ ent.alias, ent.c_return(), ent.name, ent.c_args())
+ else:
+ out_ent = '%s(%s, %s, (%s))' % (macro_ent,
+ ent.c_return(), ent.name, ent.c_params())
+ out_code = '%s(%s, %s, (%s))' % (macro_code,
+ ent.c_return(), ent.name, ent.c_args())
+
+ print out_ent
+ if out_code:
+ print ' ' + out_code
+
+ def output_entries(self, pool_offsets):
+ defs = [
+ # normal entries
+ ('MAPI_ABI_ENTRY', '(ret, name, params)', ''),
+ ('MAPI_ABI_CODE', '(ret, name, args)', ''),
+ ('MAPI_ABI_CODE_RETURN', '', 'MAPI_ABI_CODE'),
+ # alias entries
+ ('MAPI_ALIAS_ENTRY', '(alias, ret, name, params)', ''),
+ ('MAPI_ALIAS_CODE', '(alias, ret, name, args)', ''),
+ ('MAPI_ALIAS_CODE_RETURN', '', 'MAPI_ALIAS_CODE'),
+ # hidden normal entries
+ ('MAPI_ABI_ENTRY_HIDDEN', '', 'MAPI_ABI_ENTRY'),
+ ('MAPI_ABI_CODE_HIDDEN', '', 'MAPI_ABI_CODE'),
+ ('MAPI_ABI_CODE_RETURN_HIDDEN', '', 'MAPI_ABI_CODE_RETURN'),
+ # hidden alias entries
+ ('MAPI_ALIAS_ENTRY_HIDDEN', '', 'MAPI_ALIAS_ENTRY'),
+ ('MAPI_ALIAS_CODE_HIDDEN', '', 'MAPI_ALIAS_CODE'),
+ ('MAPI_ALIAS_CODE_RETURN_HIDDEN', '', 'MAPI_ALIAS_CODE_RETURN'),
+ # dynamic entries
+ ('MAPI_DYNAMIC_ENTRY', '(ret, name, params)', ''),
+ ]
+ undefs = [d[0] for d in defs]
+
+ print '#if defined(MAPI_ABI_ENTRY) || defined(MAPI_ABI_ENTRY_HIDDEN)'
+ print
+ for d in defs:
+ print '#ifndef %s' % (d[0])
+ if d[2]:
+ print '#define %s%s %s' % d
+ else:
+ print '#define %s%s' % d[:2]
+
+ print '#endif'
+ print
+
+ print '/* see MAPI_TMP_TABLE */'
+ for ent in self.entries:
+ print '#define MAPI_SLOT_%s %d' % (ent.name, ent.slot)
+ print
+ print '/* see MAPI_TMP_PUBLIC_STUBS */'
+ for ent in self.entries:
+ print '#define MAPI_POOL_%s %d' % (ent.name, pool_offsets[ent])
+ print
+
+ # define macros that generate code
+ for ent in self.entries:
+ self.output_entry(ent)
+ print
+ dynamics = abi_dynamics()
+ for ent in dynamics:
+ self.output_entry(ent)
+ print
+
+ for ent in self.entries:
+ print '#undef MAPI_SLOT_%s' % (ent.name)
+ for ent in self.entries:
+ print '#undef MAPI_POOL_%s' % (ent.name)
+ print
+ print '#endif /* defined(MAPI_ABI_ENTRY) || defined(MAPI_ABI_ENTRY_HIDDEN) */'
+ print
+
+ self._add_undefs(undefs)
+
+ def _get_string_pool(self):
+ """Get the string pool."""
+ pool = []
+ offsets = {}
+
+ count = 0
+ for ent in self.entries:
+ offsets[ent] = count
+ pool.append(ent.name + '\\0')
+ count += len(ent.name) + 1
+
+ return (pool, offsets)
+
+ def output_sorted_indices(self):
+ entry_index_pairs = []
+ for i in xrange(len(self.entries)):
+ entry_index_pairs.append((self.entries[i], i))
+ entry_index_pairs.sort(lambda x, y: cmp(x[0].name, y[0].name))
+
+ print '/* see MAPI_TMP_PUBLIC_STUBS */'
+ print '#ifdef MAPI_ABI_SORTED_INDICES'
+ print
+ print 'static const int MAPI_ABI_SORTED_INDICES[] = {'
+ for ent, idx in entry_index_pairs:
+ print ' %d, /* %s */' % (idx, ent.name)
+ print ' -1'
+ print '};'
+ print
+ print '#endif /* MAPI_ABI_SORTED_INDICES */'
+ print
+
+ self._add_undefs(['MAPI_ABI_SORTED_INDICES'])
+
+ def output_defines(self):
+ print '/* ABI defines */'
+ print '#ifdef MAPI_ABI_DEFINES'
+ print '#include "%s"' % (self.options.include)
+ print '#endif /* MAPI_ABI_DEFINES */'
+ print
+
+ self._add_undefs(['MAPI_ABI_DEFINES'])
+
+ def output(self):
+ pool, pool_offsets = self._get_string_pool()
+
+ self.output_header()
+ self.output_defines()
+ self.output_entries(pool_offsets)
+ self.output_sorted_indices()
+ self.output_footer()
+
+def parse_args():
+ parser = OptionParser(usage='usage: %prog [options] <filename>')
+ parser.add_option('-i', '--include', dest='include',
+ help='include the header for API defines')
+
+ options, args = parser.parse_args()
+ if not args or not options.include:
+ parser.print_help()
+ sys.exit(1)
+
+ return (args[0], options)
+
+def main():
+ filename, options = parse_args()
+
+ entries = abi_parse(filename)
+ printer = ABIPrinter(entries, options)
+ printer.output()
+
+if __name__ == '__main__':
+ main()
diff --git a/mesalib/src/mapi/mapi/mapi_tmp.h b/mesalib/src/mapi/mapi/mapi_tmp.h
new file mode 100644
index 000000000..79beca47d
--- /dev/null
+++ b/mesalib/src/mapi/mapi/mapi_tmp.h
@@ -0,0 +1,211 @@
+/*
+ * Mesa 3-D graphics library
+ * Version: 7.9
+ *
+ * Copyright (C) 2010 LunarG Inc.
+ *
+ * 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
+ * THE AUTHORS OR COPYRIGHT HOLDERS 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.
+ *
+ * Authors:
+ * Chia-I Wu <olv@lunarg.com>
+ */
+
+#include "u_macros.h"
+
+#ifndef MAPI_ABI_HEADER
+#error "MAPI_ABI_HEADER must be defined"
+#endif
+
+
+/**
+ * Get API defines.
+ */
+#ifdef MAPI_TMP_DEFINES
+# define MAPI_ABI_DEFINES
+# include MAPI_ABI_HEADER
+
+#ifndef MAPI_ABI_PREFIX
+#error "MAPI_ABI_PREFIX must be defined"
+#endif
+#ifndef MAPI_ABI_PUBLIC
+#error "MAPI_ABI_PUBLIC must be defined"
+#endif
+#ifndef MAPI_ABI_ATTR
+#error "MAPI_ABI_ATTR must be defined"
+#endif
+
+#undef MAPI_TMP_DEFINES
+#endif /* MAPI_TMP_DEFINES */
+
+
+/**
+ * Generate fields of struct mapi_table.
+ */
+#ifdef MAPI_TMP_TABLE
+# define MAPI_ABI_ENTRY(ret, name, params) \
+ ret (MAPI_ABI_ATTR *name) params;
+# define MAPI_DYNAMIC_ENTRY(ret, name, params) \
+ ret (MAPI_ABI_ATTR *name) params;
+# include MAPI_ABI_HEADER
+#undef MAPI_TMP_TABLE
+#endif /* MAPI_TMP_TABLE */
+
+
+/**
+ * Declare public entries.
+ */
+#ifdef MAPI_TMP_PUBLIC_DECLARES
+# define MAPI_ABI_ENTRY(ret, name, params) \
+ MAPI_ABI_PUBLIC ret MAPI_ABI_ATTR U_CONCAT(MAPI_ABI_PREFIX, name) params;
+# define MAPI_ALIAS_ENTRY(alias, ret, name, params) \
+ MAPI_ABI_ENTRY(ret, name, params);
+# define MAPI_ABI_ENTRY_HIDDEN(ret, name, params) \
+ HIDDEN ret MAPI_ABI_ATTR U_CONCAT(MAPI_ABI_PREFIX, name) params;
+# define MAPI_ALIAS_ENTRY_HIDDEN(alias, ret, name, params) \
+ MAPI_ABI_ENTRY_HIDDEN(ret, name, params)
+# include MAPI_ABI_HEADER
+#undef MAPI_TMP_PUBLIC_DECLARES
+#endif /* MAPI_TMP_PUBLIC_DECLARES */
+
+
+/**
+ * Generate string pool and public stubs.
+ */
+#ifdef MAPI_TMP_PUBLIC_STUBS
+/* define the string pool */
+static const char public_string_pool[] =
+# define MAPI_ABI_ENTRY(ret, name, params) \
+ U_STRINGIFY(name) "\0"
+# define MAPI_ALIAS_ENTRY(alias, ret, name, params) \
+ MAPI_ABI_ENTRY(ret, name, params)
+# include MAPI_ABI_HEADER
+ ;
+/* define public_sorted_indices */
+# define MAPI_ABI_SORTED_INDICES public_sorted_indices
+# include MAPI_ABI_HEADER
+
+/* define public_stubs */
+static const struct mapi_stub public_stubs[] = {
+# define MAPI_ABI_ENTRY(ret, name, params) \
+ { (mapi_func) U_CONCAT(MAPI_ABI_PREFIX, name), \
+ MAPI_SLOT_ ## name, (void *) MAPI_POOL_ ## name },
+# define MAPI_ALIAS_ENTRY(alias, ret, name, params) \
+ MAPI_ABI_ENTRY(ret, name, params)
+# include MAPI_ABI_HEADER
+ { NULL, -1, (void *) -1 }
+};
+
+#undef MAPI_TMP_PUBLIC_STUBS
+#endif /* MAPI_TMP_PUBLIC_STUBS */
+
+
+/**
+ * Generate public entries.
+ */
+#ifdef MAPI_TMP_PUBLIC_ENTRIES
+# define MAPI_ABI_ENTRY(ret, name, params) \
+ ret MAPI_ABI_ATTR U_CONCAT(MAPI_ABI_PREFIX, name) params
+# define MAPI_ABI_CODE(ret, name, args) \
+ { \
+ const struct mapi_table *tbl = u_current_get(); \
+ tbl->name args; \
+ }
+# define MAPI_ABI_CODE_RETURN(ret, name, args) \
+ { \
+ const struct mapi_table *tbl = u_current_get(); \
+ return tbl->name args; \
+ }
+# define MAPI_ALIAS_ENTRY(alias, ret, name, params) \
+ MAPI_ABI_ENTRY(ret, name, params)
+# define MAPI_ALIAS_CODE(alias, ret, name, args) \
+ MAPI_ABI_CODE(ret, alias, args)
+# define MAPI_ALIAS_CODE_RETURN(alias, ret, name, args) \
+ MAPI_ABI_CODE_RETURN(ret, alias, args)
+# include MAPI_ABI_HEADER
+#undef MAPI_TMP_PUBLIC_ENTRIES
+#endif /* MAPI_TMP_PUBLIC_ENTRIES */
+
+
+/**
+ * Generate noop entries.
+ */
+#ifdef MAPI_TMP_NOOP_ARRAY
+#ifdef DEBUG
+# define MAPI_ABI_ENTRY(ret, name, params) \
+ static ret MAPI_ABI_ATTR U_CONCAT(noop_, name) params
+# define MAPI_ABI_CODE(ret, name, args) \
+ { \
+ noop_warn(U_CONCAT_STR(MAPI_ABI_PREFIX, name)); \
+ }
+# define MAPI_ABI_CODE_RETURN(ret, name, args) \
+ { \
+ noop_warn(U_CONCAT_STR(MAPI_ABI_PREFIX, name)); \
+ return (ret) 0; \
+ }
+# include MAPI_ABI_HEADER
+
+/* define the noop function array that may be casted to mapi_table */
+const mapi_func table_noop_array[] = {
+# define MAPI_ABI_ENTRY(ret, name, params) \
+ (mapi_func) U_CONCAT(noop_, name),
+# define MAPI_DYNAMIC_ENTRY(ret, name, params) \
+ (mapi_func) noop_generic,
+# include MAPI_ABI_HEADER
+ (mapi_func) noop_generic
+};
+
+#else /* DEBUG */
+
+const mapi_func table_noop_array[] = {
+# define MAPI_ABI_ENTRY(ret, name, params) \
+ (mapi_func) noop_generic,
+# define MAPI_DYNAMIC_ENTRY(ret, name, params) \
+ (mapi_func) noop_generic,
+# include MAPI_ABI_HEADER
+ (mapi_func) noop_generic
+};
+
+#endif /* DEBUG */
+#undef MAPI_TMP_NOOP_ARRAY
+#endif /* MAPI_TMP_NOOP_ARRAY */
+
+
+#ifdef MAPI_TMP_STUB_ASM_GCC
+# define STUB_ASM_ALIAS(func, to) \
+ ".globl " func "\n" \
+ ".set " func ", " to
+# define STUB_ASM_HIDE(func) \
+ ".hidden " func
+
+# define MAPI_ABI_ENTRY(ret, name, params) \
+ __asm__(STUB_ASM_ENTRY(U_CONCAT_STR(MAPI_ABI_PREFIX, name)));
+# define MAPI_ABI_CODE(ret, name, args) \
+ __asm__(STUB_ASM_CODE(U_STRINGIFY(MAPI_SLOT_ ## name)));
+# define MAPI_ALIAS_ENTRY(alias, ret, name, params) \
+ __asm__(STUB_ASM_ALIAS(U_CONCAT_STR(MAPI_ABI_PREFIX, name), \
+ U_CONCAT_STR(MAPI_ABI_PREFIX, alias)));
+# define MAPI_ABI_ENTRY_HIDDEN(ret, name, params) \
+ __asm__(STUB_ASM_HIDE(U_CONCAT_STR(MAPI_ABI_PREFIX, name))); \
+ MAPI_ABI_ENTRY(ret, name, params);
+# define MAPI_ALIAS_ENTRY_HIDDEN(alias, ret, name, params) \
+ __asm__(STUB_ASM_HIDE(U_CONCAT_STR(MAPI_ABI_PREFIX, name))); \
+ MAPI_ALIAS_ENTRY(alias, ret, name, params);
+# include MAPI_ABI_HEADER
+#undef MAPI_TMP_STUB_ASM_GCC
+#endif /* MAPI_TMP_STUB_ASM_GCC */
diff --git a/mesalib/src/mapi/mapi/sources.mak b/mesalib/src/mapi/mapi/sources.mak
new file mode 100644
index 000000000..5f327f3df
--- /dev/null
+++ b/mesalib/src/mapi/mapi/sources.mak
@@ -0,0 +1,19 @@
+# src/mapi/mapi/sources.mak
+#
+# When MAPI_GLAPI_CURRENT is defined, MAPI_GLAPI_SOURCES can be built without
+# MAPI_SOURCES and it is used by glapi.
+#
+# Otherwise, MAPI_ABI_HEADER must be defined. It should expand to the header
+# generated by mapi_abi.py.
+
+MAPI_GLAPI_SOURCES = \
+ u_current.c \
+ u_execmem.c \
+ u_thread.c
+
+MAPI_SOURCES = \
+ entry.c \
+ mapi.c \
+ stub.c \
+ table.c \
+ $(MAPI_GLAPI_SOURCES)
diff --git a/mesalib/src/mapi/mapi/stub.c b/mesalib/src/mapi/mapi/stub.c
new file mode 100644
index 000000000..8ceaec313
--- /dev/null
+++ b/mesalib/src/mapi/mapi/stub.c
@@ -0,0 +1,180 @@
+/*
+ * Mesa 3-D graphics library
+ * Version: 7.9
+ *
+ * Copyright (C) 2010 LunarG Inc.
+ *
+ * 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
+ * THE AUTHORS OR COPYRIGHT HOLDERS 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.
+ *
+ * Authors:
+ * Chia-I Wu <olv@lunarg.com>
+ */
+
+#include <stdlib.h>
+#include <stddef.h> /* for offsetof */
+#include <string.h>
+#include <assert.h>
+
+#include "u_current.h"
+#include "u_thread.h"
+#include "entry.h"
+#include "stub.h"
+#include "table.h"
+
+#define MAPI_TABLE_FIRST_DYNAMIC \
+ (offsetof(struct mapi_table, dynamic0) / sizeof(mapi_func))
+#define MAPI_TABLE_NUM_DYNAMIC \
+ ((offsetof(struct mapi_table, last) - \
+ offsetof(struct mapi_table, dynamic0)) / sizeof(mapi_func))
+#define ARRAY_SIZE(x) (sizeof(x)/sizeof((x)[0]))
+
+/*
+ * This will define public_string_pool, public_sorted_indices, and
+ * public_stubs.
+ */
+#define MAPI_TMP_PUBLIC_STUBS
+#include "mapi_tmp.h"
+
+static struct mapi_stub dynamic_stubs[MAPI_TABLE_NUM_DYNAMIC];
+static int num_dynamic_stubs;
+static int next_dynamic_slot = MAPI_TABLE_FIRST_DYNAMIC;
+
+void
+stub_init_once(void)
+{
+#ifdef PTHREADS
+ static pthread_once_t once = PTHREAD_ONCE_INIT;
+ pthread_once(&once, entry_patch_public);
+#else
+ static int first = 1;
+ if (first) {
+ first = 0;
+ entry_patch_public();
+ }
+#endif
+}
+
+static int
+stub_compare(const void *key, const void *elem)
+{
+ const char *name = (const char *) key;
+ const int *index = (const int *) elem;
+ const struct mapi_stub *stub;
+ const char *stub_name;
+
+ stub = &public_stubs[*index];
+ stub_name = &public_string_pool[(unsigned long) stub->name];
+
+ return strcmp(name, stub_name);
+}
+
+/**
+ * Return the public stub with the given name.
+ */
+const struct mapi_stub *
+stub_find_public(const char *name)
+{
+ const int *index;
+
+ index = (const int *) bsearch(name, public_sorted_indices,
+ ARRAY_SIZE(public_sorted_indices) - 1,
+ sizeof(public_sorted_indices[0]), stub_compare);
+
+ return (index) ? &public_stubs[*index] : NULL;
+}
+
+/**
+ * Add a dynamic stub.
+ */
+static struct mapi_stub *
+stub_add_dynamic(const char *name)
+{
+ struct mapi_stub *stub;
+ int idx;
+
+ idx = num_dynamic_stubs;
+ if (idx >= MAPI_TABLE_NUM_DYNAMIC)
+ return NULL;
+
+ stub = &dynamic_stubs[idx];
+
+ /* dispatch to mapi_table->last, which is always no-op */
+ stub->addr =
+ entry_generate(MAPI_TABLE_FIRST_DYNAMIC + MAPI_TABLE_NUM_DYNAMIC);
+ if (!stub->addr)
+ return NULL;
+
+ stub->name = (const void *) name;
+ /* to be fixed later */
+ stub->slot = -1;
+
+ num_dynamic_stubs = idx + 1;
+
+ return stub;
+}
+
+/**
+ * Return the dynamic stub with the given name. If no such stub exists and
+ * generate is true, a new stub is generated.
+ */
+struct mapi_stub *
+stub_find_dynamic(const char *name, int generate)
+{
+ u_mutex_declare_static(dynamic_mutex);
+ struct mapi_stub *stub = NULL;
+ int count, i;
+
+ u_mutex_lock(dynamic_mutex);
+
+ if (generate)
+ assert(!stub_find_public(name));
+
+ count = num_dynamic_stubs;
+ for (i = 0; i < count; i++) {
+ if (strcmp(name, (const char *) dynamic_stubs[i].name) == 0) {
+ stub = &dynamic_stubs[i];
+ break;
+ }
+ }
+
+ /* generate a dynamic stub */
+ if (generate && !stub)
+ stub = stub_add_dynamic(name);
+
+ u_mutex_unlock(dynamic_mutex);
+
+ return stub;
+}
+
+void
+stub_fix_dynamic(struct mapi_stub *stub, const struct mapi_stub *alias)
+{
+ int slot;
+
+ if (stub->slot >= 0)
+ return;
+
+ if (alias)
+ slot = alias->slot;
+ else
+ slot = next_dynamic_slot++;
+
+ entry_patch(stub->addr, slot);
+ stub->slot = slot;
+}
diff --git a/mesalib/src/mapi/mapi/stub.h b/mesalib/src/mapi/mapi/stub.h
new file mode 100644
index 000000000..c7e194cf4
--- /dev/null
+++ b/mesalib/src/mapi/mapi/stub.h
@@ -0,0 +1,52 @@
+/*
+ * Mesa 3-D graphics library
+ * Version: 7.9
+ *
+ * Copyright (C) 2010 LunarG Inc.
+ *
+ * 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
+ * THE AUTHORS OR COPYRIGHT HOLDERS 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.
+ *
+ * Authors:
+ * Chia-I Wu <olv@lunarg.com>
+ */
+
+#ifndef _STUB_H_
+#define _STUB_H_
+
+typedef void (*mapi_func)(void);
+
+struct mapi_stub {
+ mapi_func addr;
+ int slot;
+ const void *name;
+};
+
+void
+stub_init_once(void);
+
+const struct mapi_stub *
+stub_find_public(const char *name);
+
+struct mapi_stub *
+stub_find_dynamic(const char *name, int generate);
+
+void
+stub_fix_dynamic(struct mapi_stub *stub, const struct mapi_stub *alias);
+
+#endif /* _STUB_H_ */
diff --git a/mesalib/src/mapi/mapi/table.c b/mesalib/src/mapi/mapi/table.c
new file mode 100644
index 000000000..8f4f700b9
--- /dev/null
+++ b/mesalib/src/mapi/mapi/table.c
@@ -0,0 +1,56 @@
+/*
+ * Mesa 3-D graphics library
+ * Version: 7.9
+ *
+ * Copyright (C) 2010 LunarG Inc.
+ *
+ * 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
+ * THE AUTHORS OR COPYRIGHT HOLDERS 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.
+ *
+ * Authors:
+ * Chia-I Wu <olv@lunarg.com>
+ */
+
+#include <stdlib.h>
+#include <stdio.h>
+
+#include "stub.h"
+#include "table.h"
+
+static void
+noop_warn(const char *name)
+{
+ static int debug = -1;
+
+ if (debug < 0)
+ debug = (getenv("MESA_DEBUG") || getenv("LIBGL_DEBUG"));
+
+ if (debug)
+ fprintf(stderr, "%s is no-op", name);
+}
+
+static int
+noop_generic(void)
+{
+ noop_warn("function");
+ return 0;
+}
+
+/* define noop_array */
+#define MAPI_TMP_NOOP_ARRAY
+#include "mapi_tmp.h"
diff --git a/mesalib/src/mapi/mapi/table.h b/mesalib/src/mapi/mapi/table.h
new file mode 100644
index 000000000..48c99018a
--- /dev/null
+++ b/mesalib/src/mapi/mapi/table.h
@@ -0,0 +1,76 @@
+/*
+ * Mesa 3-D graphics library
+ * Version: 7.9
+ *
+ * Copyright (C) 2010 LunarG Inc.
+ *
+ * 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
+ * THE AUTHORS OR COPYRIGHT HOLDERS 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.
+ *
+ * Authors:
+ * Chia-I Wu <olv@lunarg.com>
+ */
+
+#ifndef _TABLE_H_
+#define _TABLE_H_
+
+#include "u_compiler.h"
+#include "stub.h"
+
+#define MAPI_TMP_DEFINES
+#include "mapi_tmp.h"
+
+struct mapi_table {
+#define MAPI_TMP_TABLE
+#include "mapi_tmp.h"
+ mapi_func last;
+};
+
+extern const mapi_func table_noop_array[];
+
+/**
+ * Get the no-op dispatch table.
+ */
+static INLINE const struct mapi_table *
+table_get_noop(void)
+{
+ return (const struct mapi_table *) table_noop_array;
+}
+
+/**
+ * Update the dispatch table to dispatch a stub to the given function.
+ */
+static INLINE void
+table_set_func(struct mapi_table *tbl,
+ const struct mapi_stub *stub, mapi_func func)
+{
+ mapi_func *funcs = (mapi_func *) tbl;
+ funcs[stub->slot] = func;
+}
+
+/**
+ * Return the dispatched function of a stub.
+ */
+static INLINE mapi_func
+table_get_func(const struct mapi_table *tbl, const struct mapi_stub *stub)
+{
+ const mapi_func *funcs = (const mapi_func *) tbl;
+ return funcs[stub->slot];
+}
+
+#endif /* _TABLE_H_ */
diff --git a/mesalib/src/mapi/mapi/u_compiler.h b/mesalib/src/mapi/mapi/u_compiler.h
new file mode 100644
index 000000000..f1752d16f
--- /dev/null
+++ b/mesalib/src/mapi/mapi/u_compiler.h
@@ -0,0 +1,48 @@
+#ifndef _U_COMPILER_H_
+#define _U_COMPILER_H_
+
+/* Function inlining */
+#ifndef INLINE
+# ifdef __cplusplus
+# define INLINE inline
+# elif defined(__GNUC__)
+# define INLINE __inline__
+# elif defined(_MSC_VER)
+# define INLINE __inline
+# elif defined(__ICL)
+# define INLINE __inline
+# elif defined(__INTEL_COMPILER)
+# define INLINE inline
+# elif defined(__WATCOMC__) && (__WATCOMC__ >= 1100)
+# define INLINE __inline
+# elif defined(__SUNPRO_C) && defined(__C99FEATURES__)
+# define INLINE inline
+# elif (__STDC_VERSION__ >= 199901L) /* C99 */
+# define INLINE inline
+# else
+# define INLINE
+# endif
+#endif
+
+/* Function visibility */
+#ifndef PUBLIC
+# if defined(__GNUC__) || (defined(__SUNPRO_C) && (__SUNPRO_C >= 0x590))
+# define PUBLIC __attribute__((visibility("default")))
+# elif defined(_MSC_VER)
+# define PUBLIC __declspec(dllexport)
+# else
+# define PUBLIC
+# endif
+#endif
+
+#ifndef likely
+# if defined(__GNUC__)
+# define likely(x) __builtin_expect(!!(x), 1)
+# define unlikely(x) __builtin_expect(!!(x), 0)
+# else
+# define likely(x) (x)
+# define unlikely(x) (x)
+# endif
+#endif
+
+#endif /* _U_COMPILER_H_ */
diff --git a/mesalib/src/mapi/mapi/u_current.c b/mesalib/src/mapi/mapi/u_current.c
new file mode 100644
index 000000000..ed9ccfe22
--- /dev/null
+++ b/mesalib/src/mapi/mapi/u_current.c
@@ -0,0 +1,277 @@
+/*
+ * Mesa 3-D graphics library
+ * Version: 7.1
+ *
+ * Copyright (C) 1999-2008 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.
+ */
+
+
+/*
+ * This file manages the OpenGL API dispatch layer.
+ * The dispatch table (struct _glapi_table) is basically just a list
+ * of function pointers.
+ * There are functions to set/get the current dispatch table for the
+ * current thread and to manage registration/dispatch of dynamically
+ * added extension functions.
+ *
+ * It's intended that this file and the other glapi*.[ch] files are
+ * flexible enough to be reused in several places: XFree86, DRI-
+ * based libGL.so, and perhaps the SGI SI.
+ *
+ * NOTE: There are no dependencies on Mesa in this code.
+ *
+ * Versions (API changes):
+ * 2000/02/23 - original version for Mesa 3.3 and XFree86 4.0
+ * 2001/01/16 - added dispatch override feature for Mesa 3.5
+ * 2002/06/28 - added _glapi_set_warning_func(), Mesa 4.1.
+ * 2002/10/01 - _glapi_get_proc_address() will now generate new entrypoints
+ * itself (using offset ~0). _glapi_add_entrypoint() can be
+ * called afterward and it'll fill in the correct dispatch
+ * offset. This allows DRI libGL to avoid probing for DRI
+ * drivers! No changes to the public glapi interface.
+ */
+
+#include "u_current.h"
+#include "u_thread.h"
+
+#ifndef MAPI_GLAPI_CURRENT
+
+#include "table.h"
+#include "stub.h"
+
+#else
+
+extern void init_glapi_relocs_once(void);
+extern void (*__glapi_noop_table[])(void);
+
+#define table_noop_array __glapi_noop_table
+#define stub_init_once() init_glapi_relocs_once()
+
+#endif
+
+/**
+ * \name Current dispatch and current context control variables
+ *
+ * Depending on whether or not multithreading is support, and the type of
+ * support available, several variables are used to store the current context
+ * pointer and the current dispatch table pointer. In the non-threaded case,
+ * the variables \c _glapi_Dispatch and \c _glapi_Context are used for this
+ * purpose.
+ *
+ * In the "normal" threaded case, the variables \c _glapi_Dispatch and
+ * \c _glapi_Context will be \c NULL if an application is detected as being
+ * multithreaded. Single-threaded applications will use \c _glapi_Dispatch
+ * and \c _glapi_Context just like the case without any threading support.
+ * When \c _glapi_Dispatch and \c _glapi_Context are \c NULL, the thread state
+ * data \c _gl_DispatchTSD and \c ContextTSD are used. Drivers and the
+ * static dispatch functions access these variables via \c _glapi_get_dispatch
+ * and \c _glapi_get_context.
+ *
+ * There is a race condition in setting \c _glapi_Dispatch to \c NULL. It is
+ * possible for the original thread to be setting it at the same instant a new
+ * thread, perhaps running on a different processor, is clearing it. Because
+ * of that, \c ThreadSafe, which can only ever be changed to \c GL_TRUE, is
+ * used to determine whether or not the application is multithreaded.
+ *
+ * In the TLS case, the variables \c _glapi_Dispatch and \c _glapi_Context are
+ * hardcoded to \c NULL. Instead the TLS variables \c _glapi_tls_Dispatch and
+ * \c _glapi_tls_Context are used. Having \c _glapi_Dispatch and
+ * \c _glapi_Context be hardcoded to \c NULL maintains binary compatability
+ * between TLS enabled loaders and non-TLS DRI drivers.
+ */
+/*@{*/
+#if defined(GLX_USE_TLS)
+
+__thread struct mapi_table *u_current_table_tls
+ __attribute__((tls_model("initial-exec")))
+ = (struct mapi_table *) table_noop_array;
+
+__thread void *u_current_user_tls
+ __attribute__((tls_model("initial-exec")));
+
+const struct mapi_table *u_current_table;
+const void *u_current_user;
+
+#else
+
+struct mapi_table *u_current_table =
+ (struct mapi_table *) table_noop_array;
+void *u_current_user;
+
+#ifdef THREADS
+struct u_tsd u_current_table_tsd;
+static struct u_tsd u_current_user_tsd;
+static int ThreadSafe;
+#endif /* THREADS */
+
+#endif /* defined(GLX_USE_TLS) */
+/*@}*/
+
+
+void
+u_current_destroy(void)
+{
+#if defined(THREADS) && defined(WIN32_THREADS)
+ u_tsd_destroy(&u_current_table_tsd);
+ u_tsd_destroy(&u_current_user_tsd);
+#endif
+}
+
+
+#if defined(THREADS) && !defined(GLX_USE_TLS)
+
+static void
+u_current_init_tsd(void)
+{
+ u_tsd_init(&u_current_table_tsd);
+ u_tsd_init(&u_current_user_tsd);
+}
+
+/**
+ * Mutex for multithread check.
+ */
+#ifdef WIN32_THREADS
+/* _glthread_DECLARE_STATIC_MUTEX is broken on windows. There will be race! */
+#define CHECK_MULTITHREAD_LOCK()
+#define CHECK_MULTITHREAD_UNLOCK()
+#else
+u_mutex_declare_static(ThreadCheckMutex);
+#define CHECK_MULTITHREAD_LOCK() u_mutex_lock(ThreadCheckMutex)
+#define CHECK_MULTITHREAD_UNLOCK() u_mutex_unlock(ThreadCheckMutex)
+#endif
+
+/**
+ * We should call this periodically from a function such as glXMakeCurrent
+ * in order to test if multiple threads are being used.
+ */
+void
+u_current_init(void)
+{
+ static unsigned long knownID;
+ static int firstCall = 1;
+
+ if (ThreadSafe)
+ return;
+
+ CHECK_MULTITHREAD_LOCK();
+ if (firstCall) {
+ u_current_init_tsd();
+
+ knownID = u_thread_self();
+ firstCall = 0;
+ }
+ else if (knownID != u_thread_self()) {
+ ThreadSafe = 1;
+ u_current_set_internal(NULL);
+ u_current_set_user_internal(NULL);
+ }
+ CHECK_MULTITHREAD_UNLOCK();
+}
+
+#else
+
+void
+u_current_init(void)
+{
+}
+
+#endif
+
+
+
+/**
+ * Set the current context pointer for this thread.
+ * The context pointer is an opaque type which should be cast to
+ * void from the real context pointer type.
+ */
+void
+u_current_set_user_internal(void *ptr)
+{
+ u_current_init();
+
+#if defined(GLX_USE_TLS)
+ u_current_user_tls = ptr;
+#elif defined(THREADS)
+ u_tsd_set(&u_current_user_tsd, ptr);
+ u_current_user = (ThreadSafe) ? NULL : ptr;
+#else
+ u_current_user = ptr;
+#endif
+}
+
+/**
+ * Get the current context pointer for this thread.
+ * The context pointer is an opaque type which should be cast from
+ * void to the real context pointer type.
+ */
+void *
+u_current_get_user_internal(void)
+{
+#if defined(GLX_USE_TLS)
+ return u_current_user_tls;
+#elif defined(THREADS)
+ return (ThreadSafe)
+ ? u_tsd_get(&u_current_user_tsd)
+ : u_current_user;
+#else
+ return u_current_user;
+#endif
+}
+
+/**
+ * Set the global or per-thread dispatch table pointer.
+ * If the dispatch parameter is NULL we'll plug in the no-op dispatch
+ * table (__glapi_noop_table).
+ */
+void
+u_current_set_internal(struct mapi_table *tbl)
+{
+ u_current_init();
+
+ stub_init_once();
+
+ if (!tbl)
+ tbl = (struct mapi_table *) table_noop_array;
+
+#if defined(GLX_USE_TLS)
+ u_current_table_tls = tbl;
+#elif defined(THREADS)
+ u_tsd_set(&u_current_table_tsd, (void *) tbl);
+ u_current_table = (ThreadSafe) ? NULL : tbl;
+#else
+ u_current_table = tbl;
+#endif
+}
+
+/**
+ * Return pointer to current dispatch table for calling thread.
+ */
+struct mapi_table *
+u_current_get_internal(void)
+{
+#if defined(GLX_USE_TLS)
+ return u_current_table_tls;
+#elif defined(THREADS)
+ return (struct mapi_table *) ((ThreadSafe) ?
+ u_tsd_get(&u_current_table_tsd) : (void *) u_current_table);
+#else
+ return u_current_table;
+#endif
+}
diff --git a/mesalib/src/mapi/mapi/u_current.h b/mesalib/src/mapi/mapi/u_current.h
new file mode 100644
index 000000000..62e54c6c9
--- /dev/null
+++ b/mesalib/src/mapi/mapi/u_current.h
@@ -0,0 +1,102 @@
+#ifndef _U_CURRENT_H_
+#define _U_CURRENT_H_
+
+#ifdef MAPI_GLAPI_CURRENT
+
+#include "glapi/glapi.h"
+
+/* ugly renames to match glapi.h */
+#define mapi_table _glapi_table
+
+#define u_current_table_tls _glapi_tls_Dispatch
+#define u_current_user_tls _glapi_tls_Context
+#define u_current_table _glapi_Dispatch
+#define u_current_user _glapi_Context
+
+#define u_current_destroy _glapi_destroy_multithread
+#define u_current_init _glapi_check_multithread
+#define u_current_set_internal _glapi_set_dispatch
+#define u_current_get_internal _glapi_get_dispatch
+#define u_current_set_user_internal _glapi_set_context
+#define u_current_get_user_internal _glapi_get_context
+
+#define u_current_table_tsd _gl_DispatchTSD
+
+#else /* MAPI_GLAPI_CURRENT */
+
+#include "u_compiler.h"
+
+struct mapi_table;
+
+#ifdef GLX_USE_TLS
+
+extern __thread struct mapi_table *u_current_table_tls
+ __attribute__((tls_model("initial-exec")));
+
+extern __thread void *u_current_user_tls
+ __attribute__((tls_model("initial-exec")));
+
+extern const struct mapi_table *u_current_table;
+extern const void *u_current_user;
+
+#else /* GLX_USE_TLS */
+
+extern struct mapi_table *u_current_table;
+extern void *u_current_user;
+
+#endif /* GLX_USE_TLS */
+
+void
+u_current_init(void);
+
+void
+u_current_destroy(void);
+
+void
+u_current_set_internal(struct mapi_table *tbl);
+
+struct mapi_table *
+u_current_get_internal(void);
+
+void
+u_current_set_user_internal(void *ptr);
+
+void *
+u_current_get_user_internal(void);
+
+static INLINE void
+u_current_set(const struct mapi_table *tbl)
+{
+ u_current_set_internal((struct mapi_table *) tbl);
+}
+
+static INLINE const struct mapi_table *
+u_current_get(void)
+{
+#ifdef GLX_USE_TLS
+ return (const struct mapi_table *) u_current_table_tls;
+#else
+ return (likely(u_current_table) ?
+ (const struct mapi_table *) u_current_table : u_current_get_internal());
+#endif
+}
+
+static INLINE void
+u_current_set_user(void *ptr)
+{
+ u_current_set_internal(ptr);
+}
+
+static INLINE void *
+u_current_get_user(void)
+{
+#ifdef GLX_USE_TLS
+ return u_current_user_tls;
+#else
+ return likely(u_current_user) ? u_current_user : u_current_get_user_internal();
+#endif
+}
+
+#endif /* MAPI_GLAPI_CURRENT */
+
+#endif /* _U_CURRENT_H_ */
diff --git a/mesalib/src/mapi/mapi/u_execmem.c b/mesalib/src/mapi/mapi/u_execmem.c
new file mode 100644
index 000000000..e5072e06e
--- /dev/null
+++ b/mesalib/src/mapi/mapi/u_execmem.c
@@ -0,0 +1,145 @@
+/*
+ * Mesa 3-D graphics library
+ * Version: 6.5
+ *
+ * Copyright (C) 1999-2005 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 glapi_execmem.c
+ *
+ * Function for allocating executable memory for dispatch stubs.
+ *
+ * Copied from main/execmem.c and simplified for dispatch stubs.
+ */
+
+
+#include "u_compiler.h"
+#include "u_thread.h"
+#include "u_execmem.h"
+
+
+#define EXEC_MAP_SIZE (4*1024)
+
+u_mutex_declare_static(exec_mutex);
+
+static unsigned int head = 0;
+
+static unsigned char *exec_mem = (unsigned char *)0;
+
+
+#if defined(__linux__) || defined(__OpenBSD__) || defined(_NetBSD__) || defined(__sun)
+
+#include <unistd.h>
+#include <sys/mman.h>
+
+#ifdef MESA_SELINUX
+#include <selinux/selinux.h>
+#endif
+
+
+#ifndef MAP_ANONYMOUS
+#define MAP_ANONYMOUS MAP_ANON
+#endif
+
+
+/*
+ * Dispatch stubs are of fixed size and never freed. Thus, we do not need to
+ * overlay a heap, we just mmap a page and manage through an index.
+ */
+
+static int
+init_map(void)
+{
+#ifdef MESA_SELINUX
+ if (is_selinux_enabled()) {
+ if (!security_get_boolean_active("allow_execmem") ||
+ !security_get_boolean_pending("allow_execmem"))
+ return 0;
+ }
+#endif
+
+ if (!exec_mem)
+ exec_mem = mmap(NULL, EXEC_MAP_SIZE, PROT_EXEC | PROT_READ | PROT_WRITE,
+ MAP_PRIVATE | MAP_ANONYMOUS, -1, 0);
+
+ return (exec_mem != MAP_FAILED);
+}
+
+
+#elif defined(_WIN32)
+
+#include <windows.h>
+
+
+/*
+ * Avoid Data Execution Prevention.
+ */
+
+static int
+init_map(void)
+{
+ exec_mem = VirtualAlloc(NULL, EXEC_MAP_SIZE, MEM_COMMIT, PAGE_EXECUTE_READWRITE);
+
+ return (exec_mem != NULL);
+}
+
+
+#else
+
+#include <stdlib.h>
+
+static int
+init_map(void)
+{
+ exec_mem = malloc(EXEC_MAP_SIZE);
+
+ return (exec_mem != NULL);
+}
+
+
+#endif
+
+void *
+u_execmem_alloc(unsigned int size)
+{
+ void *addr = NULL;
+
+ u_mutex_lock(exec_mutex);
+
+ if (!init_map())
+ goto bail;
+
+ /* free space check, assumes no integer overflow */
+ if (head + size > EXEC_MAP_SIZE)
+ goto bail;
+
+ /* allocation, assumes proper addr and size alignement */
+ addr = exec_mem + head;
+ head += size;
+
+bail:
+ u_mutex_unlock(exec_mutex);
+
+ return addr;
+}
+
+
diff --git a/mesalib/src/mapi/mapi/u_execmem.h b/mesalib/src/mapi/mapi/u_execmem.h
new file mode 100644
index 000000000..13fff8df2
--- /dev/null
+++ b/mesalib/src/mapi/mapi/u_execmem.h
@@ -0,0 +1,7 @@
+#ifndef _U_EXECMEM_H_
+#define _U_EXECMEM_H_
+
+void *
+u_execmem_alloc(unsigned int size);
+
+#endif /* _U_EXECMEM_H_ */
diff --git a/mesalib/src/mapi/mapi/u_macros.h b/mesalib/src/mapi/mapi/u_macros.h
new file mode 100644
index 000000000..72345b5f1
--- /dev/null
+++ b/mesalib/src/mapi/mapi/u_macros.h
@@ -0,0 +1,12 @@
+#ifndef _U_MACROS_
+#define _U_MACROS_
+
+#define _U_STRINGIFY(x) #x
+#define _U_CONCAT(x, y) x ## y
+#define _U_CONCAT_STR(x, y) #x#y
+
+#define U_STRINGIFY(x) _U_STRINGIFY(x)
+#define U_CONCAT(x, y) _U_CONCAT(x, y)
+#define U_CONCAT_STR(x, y) _U_CONCAT_STR(x, y)
+
+#endif /* _U_MACROS_ */
diff --git a/mesalib/src/mapi/mapi/u_thread.c b/mesalib/src/mapi/mapi/u_thread.c
new file mode 100644
index 000000000..e0fa64ae0
--- /dev/null
+++ b/mesalib/src/mapi/mapi/u_thread.c
@@ -0,0 +1,254 @@
+/*
+ * Mesa 3-D graphics library
+ * Version: 6.5.1
+ *
+ * Copyright (C) 1999-2006 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.
+ */
+
+
+#include <stdio.h>
+#include <stdlib.h>
+#include "u_compiler.h"
+#include "u_thread.h"
+
+
+/*
+ * This file should still compile even when THREADS is not defined.
+ * This is to make things easier to deal with on the makefile scene..
+ */
+#ifdef THREADS
+#include <errno.h>
+
+/*
+ * Error messages
+ */
+#define INIT_TSD_ERROR "_glthread_: failed to allocate key for thread specific data"
+#define GET_TSD_ERROR "_glthread_: failed to get thread specific data"
+#define SET_TSD_ERROR "_glthread_: thread failed to set thread specific data"
+
+
+/*
+ * Magic number to determine if a TSD object has been initialized.
+ * Kind of a hack but there doesn't appear to be a better cross-platform
+ * solution.
+ */
+#define INIT_MAGIC 0xff8adc98
+
+
+
+/*
+ * POSIX Threads -- The best way to go if your platform supports them.
+ * Solaris >= 2.5 have POSIX threads, IRIX >= 6.4 reportedly
+ * has them, and many of the free Unixes now have them.
+ * Be sure to use appropriate -mt or -D_REENTRANT type
+ * compile flags when building.
+ */
+#ifdef PTHREADS
+
+unsigned long
+u_thread_self(void)
+{
+ return (unsigned long) pthread_self();
+}
+
+
+void
+u_tsd_init(struct u_tsd *tsd)
+{
+ if (pthread_key_create(&tsd->key, NULL/*free*/) != 0) {
+ perror(INIT_TSD_ERROR);
+ exit(-1);
+ }
+ tsd->initMagic = INIT_MAGIC;
+}
+
+
+void *
+u_tsd_get(struct u_tsd *tsd)
+{
+ if (tsd->initMagic != (int) INIT_MAGIC) {
+ u_tsd_init(tsd);
+ }
+ return pthread_getspecific(tsd->key);
+}
+
+
+void
+u_tsd_set(struct u_tsd *tsd, void *ptr)
+{
+ if (tsd->initMagic != (int) INIT_MAGIC) {
+ u_tsd_init(tsd);
+ }
+ if (pthread_setspecific(tsd->key, ptr) != 0) {
+ perror(SET_TSD_ERROR);
+ exit(-1);
+ }
+}
+
+#endif /* PTHREADS */
+
+
+
+/*
+ * Win32 Threads. The only available option for Windows 95/NT.
+ * Be sure that you compile using the Multithreaded runtime, otherwise
+ * bad things will happen.
+ */
+#ifdef WIN32_THREADS
+
+static void InsteadOf_exit(int nCode)
+{
+ DWORD dwErr = GetLastError();
+}
+
+unsigned long
+u_thread_self(void)
+{
+ return GetCurrentThreadId();
+}
+
+
+void
+u_tsd_init(struct u_tsd *tsd)
+{
+ tsd->key = TlsAlloc();
+ if (tsd->key == TLS_OUT_OF_INDEXES) {
+ perror(INIT_TSD_ERROR);
+ InsteadOf_exit(-1);
+ }
+ tsd->initMagic = INIT_MAGIC;
+}
+
+
+void
+u_tsd_destroy(struct u_tsd *tsd)
+{
+ if (tsd->initMagic != INIT_MAGIC) {
+ return;
+ }
+ TlsFree(tsd->key);
+ tsd->initMagic = 0x0;
+}
+
+
+void *
+u_tsd_get(struct u_tsd *tsd)
+{
+ if (tsd->initMagic != INIT_MAGIC) {
+ u_tsd_init(tsd);
+ }
+ return TlsGetValue(tsd->key);
+}
+
+
+void
+u_tsd_set(struct u_tsd *tsd, void *ptr)
+{
+ /* the following code assumes that the struct u_tsd has been initialized
+ to zero at creation */
+ if (tsd->initMagic != INIT_MAGIC) {
+ u_tsd_init(tsd);
+ }
+ if (TlsSetValue(tsd->key, ptr) == 0) {
+ perror(SET_TSD_ERROR);
+ InsteadOf_exit(-1);
+ }
+}
+
+#endif /* WIN32_THREADS */
+
+/*
+ * BeOS threads
+ */
+#ifdef BEOS_THREADS
+
+unsigned long
+u_thread_self(void)
+{
+ return (unsigned long) find_thread(NULL);
+}
+
+void
+u_tsd_init(struct u_tsd *tsd)
+{
+ tsd->key = tls_allocate();
+ tsd->initMagic = INIT_MAGIC;
+}
+
+void *
+u_tsd_get(struct u_tsd *tsd)
+{
+ if (tsd->initMagic != (int) INIT_MAGIC) {
+ u_tsd_init(tsd);
+ }
+ return tls_get(tsd->key);
+}
+
+void
+u_tsd_set(struct u_tsd *tsd, void *ptr)
+{
+ if (tsd->initMagic != (int) INIT_MAGIC) {
+ u_tsd_init(tsd);
+ }
+ tls_set(tsd->key, ptr);
+}
+
+#endif /* BEOS_THREADS */
+
+
+
+#else /* THREADS */
+
+
+/*
+ * no-op functions
+ */
+
+unsigned long
+_glthread_GetID(void)
+{
+ return 0;
+}
+
+
+void
+u_tsd_init(struct u_tsd *tsd)
+{
+ (void) tsd;
+}
+
+
+void *
+u_tsd_get(struct u_tsd *tsd)
+{
+ (void) tsd;
+ return NULL;
+}
+
+
+void
+u_tsd_set(struct u_tsd *tsd, void *ptr)
+{
+ (void) tsd;
+ (void) ptr;
+}
+
+
+#endif /* THREADS */
diff --git a/mesalib/src/mapi/mapi/u_thread.h b/mesalib/src/mapi/mapi/u_thread.h
new file mode 100644
index 000000000..b4487a340
--- /dev/null
+++ b/mesalib/src/mapi/mapi/u_thread.h
@@ -0,0 +1,201 @@
+/*
+ * Mesa 3-D graphics library
+ * Version: 6.5.2
+ *
+ * Copyright (C) 1999-2006 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.
+ */
+
+
+/*
+ * Thread support for gl dispatch.
+ *
+ * Initial version by John Stone (j.stone@acm.org) (johns@cs.umr.edu)
+ * and Christoph Poliwoda (poliwoda@volumegraphics.com)
+ * Revised by Keith Whitwell
+ * Adapted for new gl dispatcher by Brian Paul
+ * Modified for use in mapi by Chia-I Wu
+ */
+
+/*
+ * If this file is accidentally included by a non-threaded build,
+ * it should not cause the build to fail, or otherwise cause problems.
+ * In general, it should only be included when needed however.
+ */
+
+#ifndef _U_THREAD_H_
+#define _U_THREAD_H_
+
+#include "u_compiler.h"
+
+#if defined(PTHREADS) || defined(WIN32_THREADS) || defined(BEOS_THREADS)
+#ifndef THREADS
+#define THREADS
+#endif
+#endif
+
+/*
+ * POSIX threads. This should be your choice in the Unix world
+ * whenever possible. When building with POSIX threads, be sure
+ * to enable any compiler flags which will cause the MT-safe
+ * libc (if one exists) to be used when linking, as well as any
+ * header macros for MT-safe errno, etc. For Solaris, this is the -mt
+ * compiler flag. On Solaris with gcc, use -D_REENTRANT to enable
+ * proper compiling for MT-safe libc etc.
+ */
+#if defined(PTHREADS)
+#include <pthread.h> /* POSIX threads headers */
+
+struct u_tsd {
+ pthread_key_t key;
+ int initMagic;
+};
+
+typedef pthread_mutex_t u_mutex;
+
+#define u_mutex_declare_static(name) \
+ static u_mutex name = PTHREAD_MUTEX_INITIALIZER
+
+#define u_mutex_init(name) pthread_mutex_init(&(name), NULL)
+#define u_mutex_destroy(name) pthread_mutex_destroy(&(name))
+#define u_mutex_lock(name) (void) pthread_mutex_lock(&(name))
+#define u_mutex_unlock(name) (void) pthread_mutex_unlock(&(name))
+
+#endif /* PTHREADS */
+
+
+/*
+ * Windows threads. Should work with Windows NT and 95.
+ * IMPORTANT: Link with multithreaded runtime library when THREADS are
+ * used!
+ */
+#ifdef WIN32_THREADS
+#include <windows.h>
+
+struct u_tsd {
+ DWORD key;
+ int initMagic;
+};
+
+typedef CRITICAL_SECTION u_mutex;
+
+/* http://locklessinc.com/articles/pthreads_on_windows/ */
+#define u_mutex_declare_static(name) \
+ /* static */ u_mutex name = {(void*)-1, -1, 0, 0, 0, 0}
+
+#define u_mutex_init(name) InitializeCriticalSection(&name)
+#define u_mutex_destroy(name) DeleteCriticalSection(&name)
+#define u_mutex_lock(name) EnterCriticalSection(&name)
+#define u_mutex_unlock(name) LeaveCriticalSection(&name)
+
+#endif /* WIN32_THREADS */
+
+
+/*
+ * BeOS threads. R5.x required.
+ */
+#ifdef BEOS_THREADS
+
+/* Problem with OS.h and this file on haiku */
+#ifndef __HAIKU__
+#include <kernel/OS.h>
+#endif
+
+#include <support/TLS.h>
+
+/* The only two typedefs required here
+ * this is cause of the OS.h problem
+ */
+#ifdef __HAIKU__
+typedef int32 thread_id;
+typedef int32 sem_id;
+#endif
+
+struct u_tsd {
+ int32 key;
+ int initMagic;
+};
+
+/* Use Benaphore, aka speeder semaphore */
+typedef struct {
+ int32 lock;
+ sem_id sem;
+} benaphore;
+typedef benaphore u_mutex;
+
+#define u_mutex_declare_static(name) \
+ static u_mutex name = { 0, 0 }
+
+#define u_mutex_init(name) \
+ name.sem = create_sem(0, #name"_benaphore"), \
+ name.lock = 0
+
+#define u_mutex_destroy(name) \
+ delete_sem(name.sem), \
+ name.lock = 0
+
+#define u_mutex_lock(name) \
+ if (name.sem == 0) \
+ u_mutex_init(name); \
+ if (atomic_add(&(name.lock), 1) >= 1) \
+ acquire_sem(name.sem)
+
+#define u_mutex_unlock(name) \
+ if (atomic_add(&(name.lock), -1) > 1) \
+ release_sem(name.sem)
+
+#endif /* BEOS_THREADS */
+
+
+/*
+ * THREADS not defined
+ */
+#ifndef THREADS
+
+struct u_tsd {
+ int initMagic;
+};
+
+typedef unsigned u_mutex;
+
+#define u_mutex_declare_static(name) static u_mutex name = 0
+#define u_mutex_init(name) (void) name
+#define u_mutex_destroy(name) (void) name
+#define u_mutex_lock(name) (void) name
+#define u_mutex_unlock(name) (void) name
+
+#endif /* THREADS */
+
+
+unsigned long
+u_thread_self(void);
+
+void
+u_tsd_init(struct u_tsd *tsd);
+
+void
+u_tsd_destroy(struct u_tsd *tsd); /* WIN32 only */
+
+void *
+u_tsd_get(struct u_tsd *tsd);
+
+void
+u_tsd_set(struct u_tsd *tsd, void *ptr);
+
+#endif /* _U_THREAD_H_ */
--
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