Revert 146458 "[EFL][WebGL] Implement a common GraphicsSurface I..."

Source/WebCore/platform/graphics/surfaces/glx/GLXSurface.cpp

Index: Source/WebCore/platform/graphics/surfaces/glx/GLXSurface.cpp
===================================================================
--- Source/WebCore/platform/graphics/surfaces/glx/GLXSurface.cpp	(revision 146732)
+++ Source/WebCore/platform/graphics/surfaces/glx/GLXSurface.cpp	(working copy)
@@ -30,40 +30,11 @@
 
 namespace WebCore {
 
-static PFNGLXBINDTEXIMAGEEXTPROC pGlXBindTexImageEXT = 0;
-static PFNGLXRELEASETEXIMAGEEXTPROC pGlXReleaseTexImageEXT = 0;
+static const int pbufferAttributes[] = { GLX_PBUFFER_WIDTH, 1, GLX_PBUFFER_HEIGHT, 1, 0 };
 
-static bool resolveGLMethods()
+GLXTransportSurface::GLXTransportSurface(SurfaceAttributes attributes)
+    : GLTransportSurface(attributes)
 {
-    static bool resolved = false;
-    if (resolved)
-        return true;
-
-    pGlXBindTexImageEXT = reinterpret_cast<PFNGLXBINDTEXIMAGEEXTPROC>(glXGetProcAddress(reinterpret_cast<const GLubyte*>("glXBindTexImageEXT")));
-    pGlXReleaseTexImageEXT = reinterpret_cast<PFNGLXRELEASETEXIMAGEEXTPROC>(glXGetProcAddress(reinterpret_cast<const GLubyte*>("glXReleaseTexImageEXT")));
-
-    resolved = pGlXBindTexImageEXT && pGlXReleaseTexImageEXT;
-
-    return resolved;
-}
-
-static int glxAttributes[] = {
-    GLX_TEXTURE_FORMAT_EXT,
-    GLX_TEXTURE_FORMAT_RGBA_EXT,
-    GLX_TEXTURE_TARGET_EXT,
-    GLX_TEXTURE_2D_EXT,
-    0
-};
-
-static bool isMesaGLX()
-{
-    static bool isMesa = !!strstr(glXGetClientString(X11Helper::nativeDisplay(), GLX_VENDOR), "Mesa");
-    return isMesa;
-}
-
-GLXTransportSurface::GLXTransportSurface(const IntSize& size, SurfaceAttributes attributes)
-    : GLTransportSurface(size, attributes)
-{
     m_sharedDisplay = X11Helper::nativeDisplay();
     attributes |= GLPlatformSurface::DoubleBuffered;
     m_configSelector = adoptPtr(new GLXConfigSelector(attributes));
@@ -74,7 +45,7 @@
         return;
     }
 
-    X11Helper::createOffScreenWindow(&m_bufferHandle, *visInfo.get(), size);
+    X11Helper::createOffScreenWindow(&m_bufferHandle, *visInfo.get());
 
     if (!m_bufferHandle) {
         destroy();
@@ -195,92 +166,6 @@
     m_drawable = 0;
 }
 
-GLXTransportSurfaceClient::GLXTransportSurfaceClient(const PlatformBufferHandle handle)
-    : GLTransportSurfaceClient(handle)
-{
-    if (!resolveGLMethods())
-        return;
-
-    XWindowAttributes attr;
-    Display* display = X11Helper::nativeDisplay();
-    if (!XGetWindowAttributes(display, handle, &attr))
-        return;
-
-    // Ensure that the window is mapped.
-    if (attr.map_state == IsUnmapped || attr.map_state == IsUnviewable)
-        return;
-
-    ScopedXPixmapCreationErrorHandler handler;
-
-    XRenderPictFormat* format = XRenderFindVisualFormat(display, attr.visual);
-    bool hasAlpha = (format->type == PictTypeDirect && format->direct.alphaMask);
-    m_xPixmap = XCompositeNameWindowPixmap(display, handle);
-
-    if (!m_xPixmap)
-        return;
-
-    glxAttributes[1] = (format->depth == 32 && hasAlpha) ? GLX_TEXTURE_FORMAT_RGBA_EXT : GLX_TEXTURE_FORMAT_RGB_EXT;
-
-    GLPlatformSurface::SurfaceAttributes sharedSurfaceAttributes = GLPlatformSurface::Default;
-
-    if (hasAlpha) {
-        sharedSurfaceAttributes = GLPlatformSurface::SupportAlpha;
-        m_hasAlpha = true;
-    }
-
-    GLXConfigSelector configSelector(sharedSurfaceAttributes);
-
-    m_glxPixmap = glXCreatePixmap(display, configSelector.surfaceClientConfig(format->depth, XVisualIDFromVisual(attr.visual)), m_xPixmap, glxAttributes);
-
-    if (!m_glxPixmap || !handler.isValidOperation()) {
-        destroy();
-        return;
-    }
-
-    createTexture();
-    glXWaitX();
-    pGlXBindTexImageEXT(display, m_glxPixmap, GLX_FRONT_EXT, 0);
 }
 
-GLXTransportSurfaceClient::~GLXTransportSurfaceClient()
-{
-}
-
-void GLXTransportSurfaceClient::destroy()
-{
-    Display* display = X11Helper::nativeDisplay();
-    if (!display)
-        return;
-
-    if (m_texture) {
-        pGlXReleaseTexImageEXT(display, m_glxPixmap, GLX_FRONT_EXT);
-        GLTransportSurfaceClient::destroy();
-    }
-
-    if (m_glxPixmap) {
-        glXDestroyPixmap(display, m_glxPixmap);
-        m_glxPixmap = 0;
-        glXWaitGL();
-    }
-
-    if (m_xPixmap) {
-        X11Helper::destroyPixmap(m_xPixmap);
-        m_xPixmap = 0;
-    }
-}
-
-void GLXTransportSurfaceClient::prepareTexture()
-{
-    if (isMesaGLX() && m_texture) {
-        Display* display = X11Helper::nativeDisplay();
-        glBindTexture(GL_TEXTURE_2D, m_texture);
-        // Mesa doesn't re-bind texture to the front buffer on glXSwapBufer
-        // Manually release previous lock and rebind texture to surface to ensure frame updates.
-        pGlXReleaseTexImageEXT(display, m_glxPixmap, GLX_FRONT_EXT);
-        pGlXBindTexImageEXT(display, m_glxPixmap, GLX_FRONT_EXT, 0);
-    }
-}
-
-}
-
 #endif