move OpenGLBuffer class to core system

src/Mod/Mesh/Gui/SoFCIndexedFaceSet.cpp

@@ -55,6 +55,7 @@
 
 #include <Gui/SoFCInteractiveElement.h>
 #include <Gui/SoFCSelectionAction.h>
+#include <Gui/GLBuffer.h>
 #include "SoFCIndexedFaceSet.h"
 
 #define RENDER_GL_VAO
@@ -66,141 +67,10 @@ using namespace MeshGui;
 
 #if defined RENDER_GL_VAO
 
-class CoinOpenGLBuffer {
-public:
-    CoinOpenGLBuffer(GLenum type)
-      : target(type)
-      , bufferId(0)
-      , context(-1)
-      , currentContext(-1)
-      , glue(0)
-    {
-        SoContextHandler::addContextDestructionCallback(context_destruction_cb, this);
-    }
-    ~CoinOpenGLBuffer()
-    {
-        SoContextHandler::removeContextDestructionCallback(context_destruction_cb, this);
-
-        destroy();
-    }
-    void setCurrentContext(uint32_t ctx)
-    {
-        currentContext = ctx;
-        glue = cc_glglue_instance(currentContext);
-    }
-    bool create()
-    {
-        if (bufferId > 0)
-            return true;
-#ifdef FC_OS_WIN32
-        PFNGLGENBUFFERSPROC glGenBuffersARB = (PFNGLGENBUFFERSPROC)cc_glglue_getprocaddress(glue, "glGenBuffersARB");
-#endif
-        glGenBuffersARB(1, &bufferId);
-        context = currentContext;
-        return true;
-    }
-    bool isCreated() const
-    {
-        return (bufferId > 0);
-    }
-    void destroy()
-    {
-        // schedule delete for all allocated GL resources
-        if (bufferId > 0) {
-            void * ptr0 = (void*) ((uintptr_t) bufferId);
-            SoGLCacheContextElement::scheduleDeleteCallback(context, buffer_delete, ptr0);
-            bufferId = 0;
-        }
-    }
-    void allocate(const void *data, int count)
-    {
-        if (bufferId > 0) {
-#ifdef FC_OS_WIN32
-            PFNGLBUFFERDATAPROC glBufferDataARB = (PFNGLBUFFERDATAPROC)cc_glglue_getprocaddress(glue, "glBufferDataARB");
-#endif
-            glBufferDataARB(target, count, data, GL_STATIC_DRAW);
-        }
-    }
-    bool bind()
-    {
-        if (bufferId) {
-            if (context != currentContext) {
-                SoDebugError::postWarning("CoinOpenGLBuffer::bind",
-                                          "buffer not created");
-                return false;
-            }
-#ifdef FC_OS_WIN32
-            PFNGLBINDBUFFERPROC glBindBufferARB = (PFNGLBINDBUFFERPROC)cc_glglue_getprocaddress(glue, "glBindBufferARB");
-#endif
-            glBindBufferARB(target, bufferId);
-            return true;
-        }
-        return false;
-    }
-    void release()
-    {
-        if (bufferId) {
-#ifdef FC_OS_WIN32
-            PFNGLBINDBUFFERPROC glBindBufferARB = (PFNGLBINDBUFFERPROC)cc_glglue_getprocaddress(glue, "glBindBufferARB");
-#endif
-            glBindBufferARB(target, 0);
-        }
-    }
-    GLuint getBufferId() const
-    {
-        return bufferId;
-    }
-    uint32_t getBoundContext() const
-    {
-        return context;
-    }
-    int size() const
-    {
-        GLint value = -1;
-        if (bufferId > 0) {
-#ifdef FC_OS_WIN32
-            PFNGLGETBUFFERPARAMETERIVPROC glGetBufferParameteriv = (PFNGLGETBUFFERPARAMETERIVPROC)cc_glglue_getprocaddress(glue, "glGetBufferParameterivARB");
-#endif
-            glGetBufferParameteriv(target, GL_BUFFER_SIZE, &value);
-        }
-        return value;
-    }
-
-private:
-    static void context_destruction_cb(uint32_t context, void * userdata)
-    {
-        CoinOpenGLBuffer * self = static_cast<CoinOpenGLBuffer*>(userdata);
-
-        if (self->context == context && self->bufferId) {
-#ifdef FC_OS_WIN32
-            const cc_glglue * glue = cc_glglue_instance((int) context);
-            PFNGLDELETEBUFFERSARBPROC glDeleteBuffersARB = (PFNGLDELETEBUFFERSARBPROC)cc_glglue_getprocaddress(glue, "glDeleteBuffersARB");
-#endif
-
-            GLuint buffer = self->bufferId;
-            glDeleteBuffersARB(1, &buffer);
-            self->context = -1;
-            self->bufferId = 0;
-        }
-    }
-    static void buffer_delete(void * closure, uint32_t contextid)
-    {
-        const cc_glglue * glue = cc_glglue_instance((int) contextid);
-        GLuint id = (GLuint) ((uintptr_t) closure);
-        cc_glglue_glDeleteBuffers(glue, 1, &id);
-    }
-
-    GLenum target;
-    GLuint bufferId;
-    uint32_t context;
-    uint32_t currentContext;
-    const cc_glglue* glue;
-};
-
 class MeshRenderer::Private {
 public:
-    CoinOpenGLBuffer vertices;
-    CoinOpenGLBuffer indices;
+    Gui::OpenGLBuffer vertices;
+    Gui::OpenGLBuffer indices;
     const SbColor * pcolors;
     SoMaterialBindingElement::Binding matbinding;
     bool initialized;