Load texture storage extension entry points in RendererGL.

BUG=angleproject:884 Change-Id: Iaef596337f9c4d781fb93f517c8f605d119136fb Reviewed-on: https://chromium-review.googlesource.com/266599Reviewed-by: Kenneth Russell <kbr@chromium.org> Reviewed-by: Brandon Jones <bajones@chromium.org> Tested-by: Geoff Lang <geofflang@chromium.org> Reviewed-on: https://chromium-review.googlesource.com/272746Reviewed-by: Geoff Lang <geofflang@chromium.org>

Load texture storage extension entry points in RendererGL.
3e589ea6 · Geoff Lang · c76dc21a · 3e589ea6
Commit 3e589ea6 authored Apr 21, 2015 by Geoff Lang
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Showing with 19 additions and 3 deletions

FunctionsGL.cpp src/libANGLE/renderer/gl/FunctionsGL.cpp +19 -3

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--- a/src/libANGLE/renderer/gl/FunctionsGL.cpp
+++ b/src/libANGLE/renderer/gl/FunctionsGL.cpp
@@ -65,12 +65,21 @@ static void AssignGLEntryPoint(void *function, T *outFunction)
 }

 template <typename T>
-static void AssignGLExtensionEntryPoint(const std::vector<std::string> &extensions, const std::string &extension, void *function, T *outFunction)
+static void AssignGLExtensionEntryPoint(const std::vector<std::string> &extensions, const char *requiredExtensionString,
+                                        void *function, T *outFunction)
 {
-    if (std::find(extensions.begin(), extensions.end(), extension) != extensions.end())
+    std::vector<std::string> requiredExtensions;
+    angle::SplitStringAlongWhitespace(requiredExtensionString, &requiredExtensions);
+    for (const std::string& requiredExtension : requiredExtensions)
    {
-        *outFunction = reinterpret_cast<T>(function);
+        if (std::find(extensions.begin(), extensions.end(), requiredExtension) == extensions.end())
+        {
+            *outFunction = nullptr;
+            return;
+        }
    }
+
+    *outFunction = reinterpret_cast<T>(function);
 }

 FunctionsGL::FunctionsGL()
@@ -887,6 +896,13 @@ void FunctionsGL::initialize()
        AssignGLExtensionEntryPoint(extensions, "GL_NV_fence", loadProcAddress("glGetFenceivNV"), &getFenceivNV);
        AssignGLExtensionEntryPoint(extensions, "GL_NV_fence", loadProcAddress("glFinishFenceNV"), &finishFenceNV);
        AssignGLExtensionEntryPoint(extensions, "GL_NV_fence", loadProcAddress("glSetFenceNV"), &setFenceNV);
+
+        AssignGLExtensionEntryPoint(extensions, "GL_EXT_texture_storage", loadProcAddress("glTexStorage1DEXT"), &texStorage1D);
+        AssignGLExtensionEntryPoint(extensions, "GL_EXT_texture_storage", loadProcAddress("glTexStorage2DEXT"), &texStorage2D);
+        AssignGLExtensionEntryPoint(extensions, "GL_EXT_texture_storage GL_EXT_texture3D", loadProcAddress("glTexStorage3DEXT"), &texStorage3D);
+        AssignGLExtensionEntryPoint(extensions, "GL_EXT_texture_storage GL_EXT_direct_state_access", loadProcAddress("glTextureStorage1DEXT"), &textureStorage1D);
+        AssignGLExtensionEntryPoint(extensions, "GL_EXT_texture_storage GL_EXT_direct_state_access", loadProcAddress("glTextureStorage2DEXT"), &textureStorage2D);
+        AssignGLExtensionEntryPoint(extensions, "GL_EXT_texture_storage GL_EXT_direct_state_access GL_EXT_texture3D", loadProcAddress("glTextureStorage3DEXT"), &textureStorage3D);
    }

    // 1.3