From 2db294306f18b076b0458244a051fe5ad23c957c Mon Sep 17 00:00:00 2001
From: Tony Wasserka <neobrainx@gmail.com>
Date: Sun, 7 Dec 2014 21:48:57 +0100
Subject: [PATCH 1/3] externals: Add boost submodule.

---
 .gitmodules     | 3 +++
 externals/boost | 1 +
 2 files changed, 4 insertions(+)
 create mode 160000 externals/boost

diff --git a/.gitmodules b/.gitmodules
index d7201387a..54714e5cd 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -1,3 +1,6 @@
 [submodule "externals/inih/inih"]
 	path = externals/inih/inih
 	url = https://github.com/svn2github/inih
+[submodule "externals/boost"]
+	path = externals/boost
+	url = https://github.com/citra-emu/ext-boost.git
diff --git a/externals/boost b/externals/boost
new file mode 160000
index 000000000..b060148c0
--- /dev/null
+++ b/externals/boost
@@ -0,0 +1 @@
+Subproject commit b060148c08ae87a3a5809c4f48cb26ac667487ab

From 4d4572c697616c43ce47f43fc5de1a1b9ae27d5f Mon Sep 17 00:00:00 2001
From: Tony Wasserka <neobrainx@gmail.com>
Date: Sun, 7 Dec 2014 22:22:04 +0100
Subject: [PATCH 2/3] Integrate Boost into build system and perform a trivial
 cleanup in vertex_shader.cpp.

---
 CMakeLists.txt                   |  8 ++++++++
 src/video_core/vertex_shader.cpp | 16 ++++++++++------
 2 files changed, 18 insertions(+), 6 deletions(-)

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 05a560404..61d5d524a 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -19,6 +19,14 @@ if (PNG_FOUND)
     add_definitions(-DHAVE_PNG)
 endif ()
 
+find_package(Boost)
+if (Boost_FOUND)
+    include_directories(${Boost_INCLUDE_DIRS})
+else()
+    message(STATUS "Boost not found, falling back to externals")
+    include_directories(externals/boost)
+endif()
+
 # Include bundled CMake modules
 list(APPEND CMAKE_MODULE_PATH "${CMAKE_SOURCE_DIR}/externals/cmake-modules")
 
diff --git a/src/video_core/vertex_shader.cpp b/src/video_core/vertex_shader.cpp
index 96625791c..0dff11a0f 100644
--- a/src/video_core/vertex_shader.cpp
+++ b/src/video_core/vertex_shader.cpp
@@ -2,11 +2,16 @@
 // Licensed under GPLv2
 // Refer to the license.txt file included.
 
+#include <boost/range/algorithm.hpp>
+
+#include <common/file_util.h>
+
+#include <core/mem_map.h>
+
+#include "debug_utils/debug_utils.h"
+
 #include "pica.h"
 #include "vertex_shader.h"
-#include "debug_utils/debug_utils.h"
-#include <core/mem_map.h>
-#include <common/file_util.h>
 
 namespace Pica {
 
@@ -238,7 +243,7 @@ OutputVertex RunShader(const InputVertex& input, int num_attributes)
     // Setup input register table
     const auto& attribute_register_map = registers.vs_input_register_map;
     float24 dummy_register;
-    std::fill(&state.input_register_table[0], &state.input_register_table[16], &dummy_register);
+    boost::fill(state.input_register_table, &dummy_register);
     if(num_attributes > 0) state.input_register_table[attribute_register_map.attribute0_register] = &input.attr[0].x;
     if(num_attributes > 1) state.input_register_table[attribute_register_map.attribute1_register] = &input.attr[1].x;
     if(num_attributes > 2) state.input_register_table[attribute_register_map.attribute2_register] = &input.attr[2].x;
@@ -272,8 +277,7 @@ OutputVertex RunShader(const InputVertex& input, int num_attributes)
 
     state.status_registers[0] = false;
     state.status_registers[1] = false;
-    std::fill(state.call_stack, state.call_stack + sizeof(state.call_stack) / sizeof(state.call_stack[0]),
-              VertexShaderState::INVALID_ADDRESS);
+    boost::fill(state.call_stack, VertexShaderState::INVALID_ADDRESS);
     state.call_stack_pointer = &state.call_stack[0];
 
     ProcessShaderCode(state);

From 3d8c6e61beef922f79733718c5314c0d7015e93f Mon Sep 17 00:00:00 2001
From: Tony Wasserka <neobrainx@gmail.com>
Date: Sun, 7 Dec 2014 23:36:33 +0100
Subject: [PATCH 3/3] StringUtil: Perform some minimal cleanup.

---
 src/common/string_util.cpp | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/src/common/string_util.cpp b/src/common/string_util.cpp
index 7fb7ede5e..2ec4c8e05 100644
--- a/src/common/string_util.cpp
+++ b/src/common/string_util.cpp
@@ -2,7 +2,7 @@
 // Licensed under GPLv2
 // Refer to the license.txt file included.
 
-#include <algorithm>
+#include <boost/range/algorithm.hpp>
 
 #include "common/common.h"
 #include "common/string_util.h"
@@ -18,13 +18,13 @@ namespace Common {
 
 /// Make a string lowercase
 std::string ToLower(std::string str) {
-    std::transform(str.begin(), str.end(), str.begin(), ::tolower);
+    boost::transform(str, str.begin(), ::tolower);
     return str;
 }
 
 /// Make a string uppercase
 std::string ToUpper(std::string str) {
-    std::transform(str.begin(), str.end(), str.begin(), ::toupper);
+    boost::transform(str, str.begin(), ::toupper);
     return str;
 }