From 2da60f580cf07d16c0c52d451641bcb0e5698923 Mon Sep 17 00:00:00 2001
From: Andrei Karas <akaras@inbox.ru>
Date: Sat, 21 Jun 2014 20:29:35 +0300
Subject: add Support for OpenGL extension GL_ARB_texture_storage.

---
 src/graphicsmanager.cpp | 10 ++++++++++
 src/render/mgl.cpp      |  1 +
 src/render/mgl.h        |  1 +
 src/render/mgltypes.h   |  2 ++
 4 files changed, 14 insertions(+)

(limited to 'src')

diff --git a/src/graphicsmanager.cpp b/src/graphicsmanager.cpp
index 358793daa..be16d68e0 100644
--- a/src/graphicsmanager.cpp
+++ b/src/graphicsmanager.cpp
@@ -830,6 +830,7 @@ void GraphicsManager::initOpenGLFunctions()
 {
     const bool is10 = checkGLVersion(1, 0);
     const bool is11 = checkGLVersion(1, 1);
+    const bool is12 = checkGLVersion(1, 2);
     const bool is20 = checkGLVersion(2, 0);
     const bool is21 = checkGLVersion(2, 1);
     mSupportModernOpengl = true;
@@ -856,6 +857,15 @@ void GraphicsManager::initOpenGLFunctions()
     if (!is11)
         return;
 
+    if (is12 && supportExtension("GL_ARB_texture_storage"))
+    {
+        logger->log1("found GL_ARB_texture_storage");
+        assignFunction(glTexStorage2D, "glTexStorage2D");
+    }
+    else
+    {
+        logger->log1("GL_ARB_texture_storage not found");
+    }
     if (supportExtension("GL_ARB_framebuffer_object"))
     {   // frame buffer supported
         logger->log1("found GL_ARB_framebuffer_object");
diff --git a/src/render/mgl.cpp b/src/render/mgl.cpp
index 55bdc1b84..65064ae84 100644
--- a/src/render/mgl.cpp
+++ b/src/render/mgl.cpp
@@ -100,6 +100,7 @@ defName(glCopyImageSubData);
 defName(glPushDebugGroup);
 defName(glPopDebugGroup);
 defName(glObjectLabel);
+defName(glTexStorage2D);
 
 #ifdef WIN32
 defName(wglGetExtensionsString);
diff --git a/src/render/mgl.h b/src/render/mgl.h
index e3271f71b..32d27515f 100644
--- a/src/render/mgl.h
+++ b/src/render/mgl.h
@@ -103,6 +103,7 @@ defNameE(glCopyImageSubData);
 defNameE(glPushDebugGroup);
 defNameE(glPopDebugGroup);
 defNameE(glObjectLabel);
+defNameE(glTexStorage2D);
 
 #ifdef WIN32
 defNameE(wglGetExtensionsString);
diff --git a/src/render/mgltypes.h b/src/render/mgltypes.h
index 9881ea312..f8f26c978 100644
--- a/src/render/mgltypes.h
+++ b/src/render/mgltypes.h
@@ -156,6 +156,8 @@ typedef void (APIENTRY *glPushDebugGroup_t) (GLenum source, GLuint id,
 typedef void (APIENTRY *glPopDebugGroup_t) (void);
 typedef void (APIENTRY *glObjectLabel_t) (GLenum identifier, GLuint name,
     GLsizei length, const GLchar *label);
+typedef void (APIENTRY *glTexStorage2D_t) (GLenum target, GLsizei levels,
+    GLenum internalformat, GLsizei width, GLsizei height);
 
 // callback
 typedef void (APIENTRY *GLDEBUGPROC_t) (GLenum source, GLenum type, GLuint id,
-- 
cgit v1.2.3-60-g2f50