winrt: Fix EGL context getProcAddress()

As ANGLE doesn't resolve non-extension functions, these need to be
resolved manually.

Change-Id: I0fe45005f662f7d7f2b53c09ef129efd65fb999a
Reviewed-by: Oliver Wolff <oliver.wolff@digia.com>

2 files changed, 157 insertions, 0 deletions

diff --git a/src/plugins/platforms/winrt/qwinrteglcontext.cpp b/src/plugins/platforms/winrt/qwinrteglcontext.cpp
index 3a1958a20e..9e77a1a88a 100644
--- a/src/plugins/platforms/winrt/qwinrteglcontext.cpp
+++ b/src/plugins/platforms/winrt/qwinrteglcontext.cpp
@@ -60,4 +60,159 @@ EGLSurface QWinRTEGLContext::eglSurfaceForPlatformSurface(QPlatformSurface *surf
     }
 }
 
+QFunctionPointer QWinRTEGLContext::getProcAddress(const QByteArray &procName)
+{
+    static QHash<QByteArray, QFunctionPointer> standardFuncs;
+    if (standardFuncs.isEmpty()) {
+        standardFuncs.insert(QByteArrayLiteral("glBindTexture"), (QFunctionPointer)&glBindTexture);
+        standardFuncs.insert(QByteArrayLiteral("glBlendFunc"), (QFunctionPointer)&glBlendFunc);
+        standardFuncs.insert(QByteArrayLiteral("glClear"), (QFunctionPointer)&glClear);
+        standardFuncs.insert(QByteArrayLiteral("glClearColor"), (QFunctionPointer)&glClearColor);
+        standardFuncs.insert(QByteArrayLiteral("glClearStencil"), (QFunctionPointer)&glClearStencil);
+        standardFuncs.insert(QByteArrayLiteral("glColorMask"), (QFunctionPointer)&glColorMask);
+        standardFuncs.insert(QByteArrayLiteral("glCopyTexImage2D"), (QFunctionPointer)&glCopyTexImage2D);
+        standardFuncs.insert(QByteArrayLiteral("glCopyTexSubImage2D"), (QFunctionPointer)&glCopyTexSubImage2D);
+        standardFuncs.insert(QByteArrayLiteral("glCullFace"), (QFunctionPointer)&glCullFace);
+        standardFuncs.insert(QByteArrayLiteral("glDeleteTextures"), (QFunctionPointer)&glDeleteTextures);
+        standardFuncs.insert(QByteArrayLiteral("glDepthFunc"), (QFunctionPointer)&glDepthFunc);
+        standardFuncs.insert(QByteArrayLiteral("glDepthMask"), (QFunctionPointer)&glDepthMask);
+        standardFuncs.insert(QByteArrayLiteral("glDisable"), (QFunctionPointer)&glDisable);
+        standardFuncs.insert(QByteArrayLiteral("glDrawArrays"), (QFunctionPointer)&glDrawArrays);
+        standardFuncs.insert(QByteArrayLiteral("glDrawElements"), (QFunctionPointer)&glDrawElements);
+        standardFuncs.insert(QByteArrayLiteral("glEnable"), (QFunctionPointer)&glEnable);
+        standardFuncs.insert(QByteArrayLiteral("glFinish"), (QFunctionPointer)&glFinish);
+        standardFuncs.insert(QByteArrayLiteral("glFlush"), (QFunctionPointer)&glFlush);
+        standardFuncs.insert(QByteArrayLiteral("glFrontFace"), (QFunctionPointer)&glFrontFace);
+        standardFuncs.insert(QByteArrayLiteral("glGenTextures"), (QFunctionPointer)&glGenTextures);
+        standardFuncs.insert(QByteArrayLiteral("glGetBooleanv"), (QFunctionPointer)&glGetBooleanv);
+        standardFuncs.insert(QByteArrayLiteral("glGetError"), (QFunctionPointer)&glGetError);
+        standardFuncs.insert(QByteArrayLiteral("glGetFloatv"), (QFunctionPointer)&glGetFloatv);
+        standardFuncs.insert(QByteArrayLiteral("glGetIntegerv"), (QFunctionPointer)&glGetIntegerv);
+        standardFuncs.insert(QByteArrayLiteral("glGetString"), (QFunctionPointer)&glGetString);
+        standardFuncs.insert(QByteArrayLiteral("glGetTexParameterfv"), (QFunctionPointer)&glGetTexParameterfv);
+        standardFuncs.insert(QByteArrayLiteral("glGetTexParameteriv"), (QFunctionPointer)&glGetTexParameteriv);
+        standardFuncs.insert(QByteArrayLiteral("glHint"), (QFunctionPointer)&glHint);
+        standardFuncs.insert(QByteArrayLiteral("glIsEnabled"), (QFunctionPointer)&glIsEnabled);
+        standardFuncs.insert(QByteArrayLiteral("glIsTexture"), (QFunctionPointer)&glIsTexture);
+        standardFuncs.insert(QByteArrayLiteral("glLineWidth"), (QFunctionPointer)&glLineWidth);
+        standardFuncs.insert(QByteArrayLiteral("glPixelStorei"), (QFunctionPointer)&glPixelStorei);
+        standardFuncs.insert(QByteArrayLiteral("glPolygonOffset"), (QFunctionPointer)&glPolygonOffset);
+        standardFuncs.insert(QByteArrayLiteral("glReadPixels"), (QFunctionPointer)&glReadPixels);
+        standardFuncs.insert(QByteArrayLiteral("glScissor"), (QFunctionPointer)&glScissor);
+        standardFuncs.insert(QByteArrayLiteral("glStencilFunc"), (QFunctionPointer)&glStencilFunc);
+        standardFuncs.insert(QByteArrayLiteral("glStencilMask"), (QFunctionPointer)&glStencilMask);
+        standardFuncs.insert(QByteArrayLiteral("glStencilOp"), (QFunctionPointer)&glStencilOp);
+        standardFuncs.insert(QByteArrayLiteral("glTexImage2D"), (QFunctionPointer)&glTexImage2D);
+        standardFuncs.insert(QByteArrayLiteral("glTexParameterf"), (QFunctionPointer)&glTexParameterf);
+        standardFuncs.insert(QByteArrayLiteral("glTexParameterfv"), (QFunctionPointer)&glTexParameterfv);
+        standardFuncs.insert(QByteArrayLiteral("glTexParameteri"), (QFunctionPointer)&glTexParameteri);
+        standardFuncs.insert(QByteArrayLiteral("glTexParameteriv"), (QFunctionPointer)&glTexParameteriv);
+        standardFuncs.insert(QByteArrayLiteral("glTexSubImage2D"), (QFunctionPointer)&glTexSubImage2D);
+        standardFuncs.insert(QByteArrayLiteral("glViewport"), (QFunctionPointer)&glViewport);
+        standardFuncs.insert(QByteArrayLiteral("glActiveTexture"), (QFunctionPointer)&glActiveTexture);
+        standardFuncs.insert(QByteArrayLiteral("glAttachShader"), (QFunctionPointer)&glAttachShader);
+        standardFuncs.insert(QByteArrayLiteral("glBindAttribLocation"), (QFunctionPointer)&glBindAttribLocation);
+        standardFuncs.insert(QByteArrayLiteral("glBindBuffer"), (QFunctionPointer)&glBindBuffer);
+        standardFuncs.insert(QByteArrayLiteral("glBindFramebuffer"), (QFunctionPointer)&glBindFramebuffer);
+        standardFuncs.insert(QByteArrayLiteral("glBindRenderbuffer"), (QFunctionPointer)&glBindRenderbuffer);
+        standardFuncs.insert(QByteArrayLiteral("glBlendColor"), (QFunctionPointer)&glBlendColor);
+        standardFuncs.insert(QByteArrayLiteral("glBlendEquation"), (QFunctionPointer)&glBlendEquation);
+        standardFuncs.insert(QByteArrayLiteral("glBlendEquationSeparate"), (QFunctionPointer)&glBlendEquationSeparate);
+        standardFuncs.insert(QByteArrayLiteral("glBlendFuncSeparate"), (QFunctionPointer)&glBlendFuncSeparate);
+        standardFuncs.insert(QByteArrayLiteral("glBufferData"), (QFunctionPointer)&glBufferData);
+        standardFuncs.insert(QByteArrayLiteral("glBufferSubData"), (QFunctionPointer)&glBufferSubData);
+        standardFuncs.insert(QByteArrayLiteral("glCheckFramebufferStatus"), (QFunctionPointer)&glCheckFramebufferStatus);
+        standardFuncs.insert(QByteArrayLiteral("glCompileShader"), (QFunctionPointer)&glCompileShader);
+        standardFuncs.insert(QByteArrayLiteral("glCompressedTexImage2D"), (QFunctionPointer)&glCompressedTexImage2D);
+        standardFuncs.insert(QByteArrayLiteral("glCompressedTexSubImage2D"), (QFunctionPointer)&glCompressedTexSubImage2D);
+        standardFuncs.insert(QByteArrayLiteral("glCreateProgram"), (QFunctionPointer)&glCreateProgram);
+        standardFuncs.insert(QByteArrayLiteral("glCreateShader"), (QFunctionPointer)&glCreateShader);
+        standardFuncs.insert(QByteArrayLiteral("glDeleteBuffers"), (QFunctionPointer)&glDeleteBuffers);
+        standardFuncs.insert(QByteArrayLiteral("glDeleteFramebuffers"), (QFunctionPointer)&glDeleteFramebuffers);
+        standardFuncs.insert(QByteArrayLiteral("glDeleteProgram"), (QFunctionPointer)&glDeleteProgram);
+        standardFuncs.insert(QByteArrayLiteral("glDeleteRenderbuffers"), (QFunctionPointer)&glDeleteRenderbuffers);
+        standardFuncs.insert(QByteArrayLiteral("glDeleteShader"), (QFunctionPointer)&glDeleteShader);
+        standardFuncs.insert(QByteArrayLiteral("glDetachShader"), (QFunctionPointer)&glDetachShader);
+        standardFuncs.insert(QByteArrayLiteral("glDisableVertexAttribArray"), (QFunctionPointer)&glDisableVertexAttribArray);
+        standardFuncs.insert(QByteArrayLiteral("glEnableVertexAttribArray"), (QFunctionPointer)&glEnableVertexAttribArray);
+        standardFuncs.insert(QByteArrayLiteral("glFramebufferRenderbuffer"), (QFunctionPointer)&glFramebufferRenderbuffer);
+        standardFuncs.insert(QByteArrayLiteral("glFramebufferTexture2D"), (QFunctionPointer)&glFramebufferTexture2D);
+        standardFuncs.insert(QByteArrayLiteral("glGenBuffers"), (QFunctionPointer)&glGenBuffers);
+        standardFuncs.insert(QByteArrayLiteral("glGenerateMipmap"), (QFunctionPointer)&glGenerateMipmap);
+        standardFuncs.insert(QByteArrayLiteral("glGenFramebuffers"), (QFunctionPointer)&glGenFramebuffers);
+        standardFuncs.insert(QByteArrayLiteral("glGenRenderbuffers"), (QFunctionPointer)&glGenRenderbuffers);
+        standardFuncs.insert(QByteArrayLiteral("glGetActiveAttrib"), (QFunctionPointer)&glGetActiveAttrib);
+        standardFuncs.insert(QByteArrayLiteral("glGetActiveUniform"), (QFunctionPointer)&glGetActiveUniform);
+        standardFuncs.insert(QByteArrayLiteral("glGetAttachedShaders"), (QFunctionPointer)&glGetAttachedShaders);
+        standardFuncs.insert(QByteArrayLiteral("glGetAttribLocation"), (QFunctionPointer)&glGetAttribLocation);
+        standardFuncs.insert(QByteArrayLiteral("glGetBufferParameteriv"), (QFunctionPointer)&glGetBufferParameteriv);
+        standardFuncs.insert(QByteArrayLiteral("glGetFramebufferAttachmentParameteriv"), (QFunctionPointer)&glGetFramebufferAttachmentParameteriv);
+        standardFuncs.insert(QByteArrayLiteral("glGetProgramiv"), (QFunctionPointer)&glGetProgramiv);
+        standardFuncs.insert(QByteArrayLiteral("glGetProgramInfoLog"), (QFunctionPointer)&glGetProgramInfoLog);
+        standardFuncs.insert(QByteArrayLiteral("glGetRenderbufferParameteriv"), (QFunctionPointer)&glGetRenderbufferParameteriv);
+        standardFuncs.insert(QByteArrayLiteral("glGetShaderiv"), (QFunctionPointer)&glGetShaderiv);
+        standardFuncs.insert(QByteArrayLiteral("glGetShaderInfoLog"), (QFunctionPointer)&glGetShaderInfoLog);
+        standardFuncs.insert(QByteArrayLiteral("glGetShaderPrecisionFormat"), (QFunctionPointer)&glGetShaderPrecisionFormat);
+        standardFuncs.insert(QByteArrayLiteral("glGetShaderSource"), (QFunctionPointer)&glGetShaderSource);
+        standardFuncs.insert(QByteArrayLiteral("glGetUniformfv"), (QFunctionPointer)&glGetUniformfv);
+        standardFuncs.insert(QByteArrayLiteral("glGetUniformiv"), (QFunctionPointer)&glGetUniformiv);
+        standardFuncs.insert(QByteArrayLiteral("glGetUniformLocation"), (QFunctionPointer)&glGetUniformLocation);
+        standardFuncs.insert(QByteArrayLiteral("glGetVertexAttribfv"), (QFunctionPointer)&glGetVertexAttribfv);
+        standardFuncs.insert(QByteArrayLiteral("glGetVertexAttribiv"), (QFunctionPointer)&glGetVertexAttribiv);
+        standardFuncs.insert(QByteArrayLiteral("glGetVertexAttribPointerv"), (QFunctionPointer)&glGetVertexAttribPointerv);
+        standardFuncs.insert(QByteArrayLiteral("glIsBuffer"), (QFunctionPointer)&glIsBuffer);
+        standardFuncs.insert(QByteArrayLiteral("glIsFramebuffer"), (QFunctionPointer)&glIsFramebuffer);
+        standardFuncs.insert(QByteArrayLiteral("glIsProgram"), (QFunctionPointer)&glIsProgram);
+        standardFuncs.insert(QByteArrayLiteral("glIsRenderbuffer"), (QFunctionPointer)&glIsRenderbuffer);
+        standardFuncs.insert(QByteArrayLiteral("glIsShader"), (QFunctionPointer)&glIsShader);
+        standardFuncs.insert(QByteArrayLiteral("glLinkProgram"), (QFunctionPointer)&glLinkProgram);
+        standardFuncs.insert(QByteArrayLiteral("glReleaseShaderCompiler"), (QFunctionPointer)&glReleaseShaderCompiler);
+        standardFuncs.insert(QByteArrayLiteral("glRenderbufferStorage"), (QFunctionPointer)&glRenderbufferStorage);
+        standardFuncs.insert(QByteArrayLiteral("glSampleCoverage"), (QFunctionPointer)&glSampleCoverage);
+        standardFuncs.insert(QByteArrayLiteral("glShaderBinary"), (QFunctionPointer)&glShaderBinary);
+        standardFuncs.insert(QByteArrayLiteral("glShaderSource"), (QFunctionPointer)&glShaderSource);
+        standardFuncs.insert(QByteArrayLiteral("glStencilFuncSeparate"), (QFunctionPointer)&glStencilFuncSeparate);
+        standardFuncs.insert(QByteArrayLiteral("glStencilMaskSeparate"), (QFunctionPointer)&glStencilMaskSeparate);
+        standardFuncs.insert(QByteArrayLiteral("glStencilOpSeparate"), (QFunctionPointer)&glStencilOpSeparate);
+        standardFuncs.insert(QByteArrayLiteral("glUniform1f"), (QFunctionPointer)&glUniform1f);
+        standardFuncs.insert(QByteArrayLiteral("glUniform1fv"), (QFunctionPointer)&glUniform1fv);
+        standardFuncs.insert(QByteArrayLiteral("glUniform1i"), (QFunctionPointer)&glUniform1i);
+        standardFuncs.insert(QByteArrayLiteral("glUniform1iv"), (QFunctionPointer)&glUniform1iv);
+        standardFuncs.insert(QByteArrayLiteral("glUniform2f"), (QFunctionPointer)&glUniform2f);
+        standardFuncs.insert(QByteArrayLiteral("glUniform2fv"), (QFunctionPointer)&glUniform2fv);
+        standardFuncs.insert(QByteArrayLiteral("glUniform2i"), (QFunctionPointer)&glUniform2i);
+        standardFuncs.insert(QByteArrayLiteral("glUniform2iv"), (QFunctionPointer)&glUniform2iv);
+        standardFuncs.insert(QByteArrayLiteral("glUniform3f"), (QFunctionPointer)&glUniform3f);
+        standardFuncs.insert(QByteArrayLiteral("glUniform3fv"), (QFunctionPointer)&glUniform3fv);
+        standardFuncs.insert(QByteArrayLiteral("glUniform3i"), (QFunctionPointer)&glUniform3i);
+        standardFuncs.insert(QByteArrayLiteral("glUniform3iv"), (QFunctionPointer)&glUniform3iv);
+        standardFuncs.insert(QByteArrayLiteral("glUniform4f"), (QFunctionPointer)&glUniform4f);
+        standardFuncs.insert(QByteArrayLiteral("glUniform4fv"), (QFunctionPointer)&glUniform4fv);
+        standardFuncs.insert(QByteArrayLiteral("glUniform4i"), (QFunctionPointer)&glUniform4i);
+        standardFuncs.insert(QByteArrayLiteral("glUniform4iv"), (QFunctionPointer)&glUniform4iv);
+        standardFuncs.insert(QByteArrayLiteral("glUniformMatrix2fv"), (QFunctionPointer)&glUniformMatrix2fv);
+        standardFuncs.insert(QByteArrayLiteral("glUniformMatrix3fv"), (QFunctionPointer)&glUniformMatrix3fv);
+        standardFuncs.insert(QByteArrayLiteral("glUniformMatrix4fv"), (QFunctionPointer)&glUniformMatrix4fv);
+        standardFuncs.insert(QByteArrayLiteral("glUseProgram"), (QFunctionPointer)&glUseProgram);
+        standardFuncs.insert(QByteArrayLiteral("glValidateProgram"), (QFunctionPointer)&glValidateProgram);
+        standardFuncs.insert(QByteArrayLiteral("glVertexAttrib1f"), (QFunctionPointer)&glVertexAttrib1f);
+        standardFuncs.insert(QByteArrayLiteral("glVertexAttrib1fv"), (QFunctionPointer)&glVertexAttrib1fv);
+        standardFuncs.insert(QByteArrayLiteral("glVertexAttrib2f"), (QFunctionPointer)&glVertexAttrib2f);
+        standardFuncs.insert(QByteArrayLiteral("glVertexAttrib2fv"), (QFunctionPointer)&glVertexAttrib2fv);
+        standardFuncs.insert(QByteArrayLiteral("glVertexAttrib3f"), (QFunctionPointer)&glVertexAttrib3f);
+        standardFuncs.insert(QByteArrayLiteral("glVertexAttrib3fv"), (QFunctionPointer)&glVertexAttrib3fv);
+        standardFuncs.insert(QByteArrayLiteral("glVertexAttrib4f"), (QFunctionPointer)&glVertexAttrib4f);
+        standardFuncs.insert(QByteArrayLiteral("glVertexAttrib4fv"), (QFunctionPointer)&glVertexAttrib4fv);
+        standardFuncs.insert(QByteArrayLiteral("glVertexAttribPointer"), (QFunctionPointer)&glVertexAttribPointer);
+        standardFuncs.insert(QByteArrayLiteral("glClearDepthf"), (QFunctionPointer)&glClearDepthf);
+        standardFuncs.insert(QByteArrayLiteral("glDepthRangef"), (QFunctionPointer)&glDepthRangef);
+    };
+
+    QHash<QByteArray, QFunctionPointer>::const_iterator i = standardFuncs.find(procName);
+    if (i != standardFuncs.end())
+        return i.value();
+
+    return QEGLPlatformContext::getProcAddress(procName);
+}
+
 QT_END_NAMESPACE
diff --git a/src/plugins/platforms/winrt/qwinrteglcontext.h b/src/plugins/platforms/winrt/qwinrteglcontext.h
index c065847374..6dc8dc6c9f 100644
--- a/src/plugins/platforms/winrt/qwinrteglcontext.h
+++ b/src/plugins/platforms/winrt/qwinrteglcontext.h
@@ -51,6 +51,8 @@ class QWinRTEGLContext : public QEGLPlatformContext
 public:
     explicit QWinRTEGLContext(const QSurfaceFormat &format, QPlatformOpenGLContext *share, EGLDisplay display, EGLSurface surface);
 
+    QFunctionPointer getProcAddress(const QByteArray &procName) Q_DECL_OVERRIDE;
+
 protected:
     EGLSurface eglSurfaceForPlatformSurface(QPlatformSurface *surface);