Adding upstream version 4:7.4.7.upstream/4%7.4.7upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 219 insertions, 0 deletions

diff --git a/canvas/source/opengl/ogl_canvashelper.hxx b/canvas/source/opengl/ogl_canvashelper.hxx
new file mode 100644
index 000000000..49513983d
--- /dev/null
+++ b/canvas/source/opengl/ogl_canvashelper.hxx
@@ -0,0 +1,219 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ */
+
+#pragma once
+
+#include <com/sun/star/rendering/XCanvas.hpp>
+
+#include <o3tl/cow_wrapper.hxx>
+#include <vector>
+
+namespace oglcanvas
+{
+    class SpriteDeviceHelper;
+
+    /** Helper class for basic canvas functionality. */
+    class CanvasHelper
+    {
+    public:
+        CanvasHelper();
+
+        // outline because of incomplete type Action
+        ~CanvasHelper();
+        CanvasHelper& operator=( const CanvasHelper& );
+
+        /// Release all references
+        void disposing();
+
+        /** Initialize canvas helper
+
+            This method late-initializes the canvas helper, providing
+            it with the necessary device and output objects. Note that
+            the CanvasHelper does <em>not</em> take ownership of the
+            passed rDevice reference, nor does it perform any
+            reference counting. Thus, to prevent the reference counted
+            SpriteCanvas object from deletion, the user of this class
+            is responsible for holding ref-counted references itself!
+
+            @param rDevice
+            Reference device this canvas is associated with
+
+         */
+        void init( css::rendering::XGraphicDevice& rDevice,
+                   SpriteDeviceHelper& rDeviceHelper );
+
+        // CanvasHelper functionality
+        // ==========================
+
+        // XCanvas (only providing, not implementing the
+        // interface. Also note subtle method parameter differences)
+        void clear();
+        void drawLine( const css::rendering::XCanvas*      pCanvas,
+                       const css::geometry::RealPoint2D&   aStartPoint,
+                       const css::geometry::RealPoint2D&   aEndPoint,
+                       const css::rendering::ViewState&    viewState,
+                       const css::rendering::RenderState&  renderState );
+        void drawBezier( const css::rendering::XCanvas*            pCanvas,
+                         const css::geometry::RealBezierSegment2D& aBezierSegment,
+                         const css::geometry::RealPoint2D&         aEndPoint,
+                         const css::rendering::ViewState&          viewState,
+                         const css::rendering::RenderState&        renderState );
+        css::uno::Reference< css::rendering::XCachedPrimitive >
+            drawPolyPolygon( const css::rendering::XCanvas*            pCanvas,
+                             const css::uno::Reference<
+                                    css::rendering::XPolyPolygon2D >&  xPolyPolygon,
+                             const css::rendering::ViewState&          viewState,
+                             const css::rendering::RenderState&        renderState );
+        css::uno::Reference< css::rendering::XCachedPrimitive >
+            strokePolyPolygon( const css::rendering::XCanvas*          pCanvas,
+                               const css::uno::Reference<
+                                    css::rendering::XPolyPolygon2D >&  xPolyPolygon,
+                               const css::rendering::ViewState&        viewState,
+                               const css::rendering::RenderState&      renderState,
+                               const css::rendering::StrokeAttributes& strokeAttributes );
+        css::uno::Reference< css::rendering::XCachedPrimitive >
+            strokeTexturedPolyPolygon( const css::rendering::XCanvas*          pCanvas,
+                                       const css::uno::Reference<
+                                            css::rendering::XPolyPolygon2D >&  xPolyPolygon,
+                                       const css::rendering::ViewState&        viewState,
+                                       const css::rendering::RenderState&      renderState,
+                                       const css::uno::Sequence<
+                                            css::rendering::Texture >&         textures,
+                                       const css::rendering::StrokeAttributes& strokeAttributes );
+        css::uno::Reference< css::rendering::XCachedPrimitive >
+            strokeTextureMappedPolyPolygon( const css::rendering::XCanvas*             pCanvas,
+                                            const css::uno::Reference<
+                                                    css::rendering::XPolyPolygon2D >&  xPolyPolygon,
+                                            const css::rendering::ViewState&           viewState,
+                                            const css::rendering::RenderState&         renderState,
+                                            const css::uno::Sequence<
+                                                    css::rendering::Texture >&         textures,
+                                            const css::uno::Reference<
+                                                    css::geometry::XMapping2D >&       xMapping,
+                                            const css::rendering::StrokeAttributes&    strokeAttributes );
+        css::uno::Reference< css::rendering::XPolyPolygon2D >
+            queryStrokeShapes( const css::rendering::XCanvas*          pCanvas,
+                               const css::uno::Reference<
+                                    css::rendering::XPolyPolygon2D >&  xPolyPolygon,
+                               const css::rendering::ViewState&        viewState,
+                               const css::rendering::RenderState&      renderState,
+                               const css::rendering::StrokeAttributes& strokeAttributes );
+        css::uno::Reference< css::rendering::XCachedPrimitive >
+            fillPolyPolygon( const css::rendering::XCanvas*            pCanvas,
+                             const css::uno::Reference<
+                                    css::rendering::XPolyPolygon2D >&  xPolyPolygon,
+                             const css::rendering::ViewState&          viewState,
+                             const css::rendering::RenderState&        renderState );
+        css::uno::Reference< css::rendering::XCachedPrimitive >
+            fillTexturedPolyPolygon( const css::rendering::XCanvas*            pCanvas,
+                                     const css::uno::Reference<
+                                            css::rendering::XPolyPolygon2D >&  xPolyPolygon,
+                                     const css::rendering::ViewState&          viewState,
+                                     const css::rendering::RenderState&        renderState,
+                                     const css::uno::Sequence<
+                                            css::rendering::Texture >&         textures );
+        css::uno::Reference< css::rendering::XCachedPrimitive >
+            fillTextureMappedPolyPolygon( const css::rendering::XCanvas*           pCanvas,
+                                          const css::uno::Reference<
+                                                css::rendering::XPolyPolygon2D >&  xPolyPolygon,
+                                          const css::rendering::ViewState&         viewState,
+                                          const css::rendering::RenderState&       renderState,
+                                          const css::uno::Sequence<
+                                                css::rendering::Texture >&         textures,
+                                          const css::uno::Reference<
+                                                css::geometry::XMapping2D >&       xMapping );
+
+        css::uno::Reference< css::rendering::XCanvasFont >
+            createFont( const css::rendering::XCanvas*             pCanvas,
+                        const css::rendering::FontRequest&         fontRequest,
+                        const css::uno::Sequence<
+                                css::beans::PropertyValue >&       extraFontProperties,
+                        const css::geometry::Matrix2D&             fontMatrix );
+
+        css::uno::Sequence< css::rendering::FontInfo >
+            queryAvailableFonts( const css::rendering::XCanvas*        pCanvas,
+                                 const css::rendering::FontInfo&       aFilter,
+                                 const css::uno::Sequence<
+                                        css::beans::PropertyValue >&   aFontProperties );
+
+        css::uno::Reference< css::rendering::XCachedPrimitive >
+            drawText( const css::rendering::XCanvas*           pCanvas,
+                      const css::rendering::StringContext&     text,
+                      const css::uno::Reference<
+                            css::rendering::XCanvasFont >&     xFont,
+                      const css::rendering::ViewState&         viewState,
+                      const css::rendering::RenderState&       renderState,
+                      sal_Int8                                              textDirection );
+
+        css::uno::Reference< css::rendering::XCachedPrimitive >
+            drawTextLayout( const css::rendering::XCanvas*     pCanvas,
+                            const css::uno::Reference<
+                                css::rendering::XTextLayout >& layoutetText,
+                            const css::rendering::ViewState&   viewState,
+                            const css::rendering::RenderState& renderState );
+
+        css::uno::Reference< css::rendering::XCachedPrimitive >
+            drawBitmap( const css::rendering::XCanvas*     pCanvas,
+                        const css::uno::Reference<
+                                css::rendering::XBitmap >& xBitmap,
+                        const css::rendering::ViewState&   viewState,
+                        const css::rendering::RenderState& renderState );
+        css::uno::Reference< css::rendering::XCachedPrimitive >
+            drawBitmapModulated( const css::rendering::XCanvas*        pCanvas,
+                                 const css::uno::Reference<
+                                        css::rendering::XBitmap >&     xBitmap,
+                                 const css::rendering::ViewState&      viewState,
+                                 const css::rendering::RenderState&    renderState );
+        css::uno::Reference< css::rendering::XGraphicDevice >
+            getDevice() { return css::uno::Reference< css::rendering::XGraphicDevice >(mpDevice); }
+
+        /** Write out recorded actions
+         */
+        bool renderRecordedActions() const;
+
+        /** Retrieve number of recorded actions
+         */
+        size_t getRecordedActionCount() const;
+
+        SpriteDeviceHelper* getDeviceHelper() const { return mpDeviceHelper; }
+        css::rendering::XGraphicDevice* getDevice() const { return mpDevice; }
+
+        struct Action;
+        typedef o3tl::cow_wrapper< std::vector<Action>,
+                                   o3tl::ThreadSafeRefCountingPolicy > RecordVectorT;
+
+    private:
+        CanvasHelper( const CanvasHelper& ) = delete;
+
+        void setupGraphicsState( Action&                                         o_action,
+                                 const css::rendering::ViewState&   viewState,
+                                 const css::rendering::RenderState& renderState );
+
+        /** Phyical output device
+
+            Deliberately not a refcounted reference, because of
+            potential circular references for spritecanvas.
+         */
+        css::rendering::XGraphicDevice*              mpDevice;
+
+        /** Internal helper - used for a few global GL objects,
+            e.g. shader programs; and caches
+         */
+        SpriteDeviceHelper*                          mpDeviceHelper;
+
+        /** Ptr to array of recorded render calls
+
+            Gets shared copy-on-write, when this CanvasHelper is
+            copied (used e.g. for CanvasBitmap)
+         */
+        RecordVectorT                                mpRecordedActions;
+    };
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */