From ba05a5cdc474cb455a30f39efca4e04fb150d7de Mon Sep 17 00:00:00 2001
From: ExMix <rahuba.youri@mapswithme.com>
Date: Tue, 18 Nov 2014 11:09:52 +0300
Subject: [PATCH] [ios, drape] build fix

---
 drape/glIncludes.hpp  |  1 +
 drape/glfunctions.cpp | 17 ++++++++++++++---
 drape/glfunctions.hpp |  2 +-
 3 files changed, 16 insertions(+), 4 deletions(-)

diff --git a/drape/glIncludes.hpp b/drape/glIncludes.hpp
index 421bc8bf4f..50264aa900 100644
--- a/drape/glIncludes.hpp
+++ b/drape/glIncludes.hpp
@@ -5,6 +5,7 @@
 #if defined(OMIM_OS_IPHONE)
   #define USE_OPENGLES20_IF_AVAILABLE 1
   #include <OpenGLES/ES2/gl.h>
+  #include <OpenGLES/ES2/glext.h>
 #elif defined(OMIM_OS_MAC)
   #include <OpenGL/gl.h>
   #include <OpenGL/glext.h>
diff --git a/drape/glfunctions.cpp b/drape/glfunctions.cpp
index 6f58c24ea9..d412c3db41 100644
--- a/drape/glfunctions.cpp
+++ b/drape/glfunctions.cpp
@@ -115,14 +115,20 @@ void GLFunctions::Init()
   glGenVertexArraysFn = &glGenVertexArraysAPPLE;
   glBindVertexArrayFn = &glBindVertexArrayAPPLE;
   glDeleteVertexArrayFn = &glDeleteVertexArraysAPPLE;
+  glMapBufferFn = &::glMapBuffer;
+  glUnmapBufferFn = &::glUnmapBuffer;
 #elif defined(OMIM_OS_LINUX)
   glGenVertexArraysFn = &::glGenVertexArrays;
   glBindVertexArrayFn = &::glBindVertexArray;
   glDeleteVertexArrayFn = &::glDeleteVertexArrays;
+  glMapBufferFn = &::glMapBuffer;  // I don't know correct name for linux!
+  glUnmapBufferFn = &::glUnmapBuffer; // I don't know correct name for linux!
 #elif defined(OMIM_OS_MOBILE)
   glGenVertexArraysFn = &glGenVertexArraysOES;
   glBindVertexArrayFn = &glBindVertexArrayOES;
   glDeleteVertexArrayFn = &glDeleteVertexArraysOES;
+  glMapBufferFn = &::glMapBufferOES;
+  glUnmapBufferFn = &::glUnmapBufferOES;
 #endif
 
   glBindFramebufferFn = &::glBindFramebuffer;
@@ -138,8 +144,6 @@ void GLFunctions::Init()
   glDeleteBuffersFn = &::glDeleteBuffers;
   glBufferDataFn = &::glBufferData;
   glBufferSubDataFn = &::glBufferSubData;
-  glMapBufferFn = &::glMapBuffer;
-  glUnmapBufferFn = &::glUnmapBuffer;
 
   /// Shaders
   glCreateShaderFn = &::glCreateShader;
@@ -180,6 +184,9 @@ void GLFunctions::Init()
   glUniform1fvFn = &::glUniform1fv;
 
   glUniformMatrix4fvFn = &glUniformMatrix4fv;
+
+  glPixelStorei(GL_UNPACK_ALIGNMENT, 1);
+  glPixelStorei(GL_PACK_ALIGNMENT, 1);
 }
 
 bool GLFunctions::glHasExtension(string const & name)
@@ -246,9 +253,13 @@ void GLFunctions::glDisable(glConst mode)
   GLCHECK(::glDisable(mode));
 }
 
-void GLFunctions::glClearDepth(double depth)
+void GLFunctions::glClearDepthValue(double depth)
 {
+#ifdef OMIM_OS_IPHONE
+  GLCHECK(::glClearDepthf(static_cast<GLclampf>(depth)));
+#else
   GLCHECK(::glClearDepth(depth));
+#endif
 }
 
 void GLFunctions::glDepthMask(bool needWriteToDepthBuffer)
diff --git a/drape/glfunctions.hpp b/drape/glfunctions.hpp
index 9c0cbff0f5..b8396ce175 100644
--- a/drape/glfunctions.hpp
+++ b/drape/glfunctions.hpp
@@ -19,7 +19,7 @@ public:
 
   static void glEnable(glConst mode);
   static void glDisable(glConst mode);
-  static void glClearDepth(double depth);
+  static void glClearDepthValue(double depth);
   static void glDepthMask(bool needWriteToDepthBuffer);
   static void glDepthFunc(glConst depthFunc);
   static void glBlendEquation(glConst function);