Move render state classes into own dir and tidy up

Change-Id: I0829c42283d6a25e9b3ec623f45739ea266718cf
Reviewed-by: Paul Lemire <paul.lemire@kdab.com>

1 files changed, 282 insertions, 0 deletions

diff --git a/src/render/renderstates/renderstates_p.h b/src/render/renderstates/renderstates_p.h
new file mode 100644
index 000000000..2b0baafef
--- /dev/null
+++ b/src/render/renderstates/renderstates_p.h
@@ -0,0 +1,282 @@
+/****************************************************************************
+**
+** Copyright (C) 2014 Klaralvdalens Datakonsult AB (KDAB).
+** Copyright (C) 2015 The Qt Company Ltd and/or its subsidiary(-ies).
+** Contact: http://www.qt-project.org/legal
+**
+** This file is part of the Qt3D module of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL3$
+** Commercial License Usage
+** Licensees holding valid commercial Qt licenses may use this file in
+** accordance with the commercial license agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and The Qt Company. For licensing terms
+** and conditions see http://www.qt.io/terms-conditions. For further
+** information use the contact form at http://www.qt.io/contact-us.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 3 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPLv3 included in the
+** packaging of this file. Please review the following information to
+** ensure the GNU Lesser General Public License version 3 requirements
+** will be met: https://www.gnu.org/licenses/lgpl.html.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 2.0 or later as published by the Free
+** Software Foundation and appearing in the file LICENSE.GPL included in
+** the packaging of this file. Please review the following information to
+** ensure the GNU General Public License version 2.0 requirements will be
+** met: http://www.gnu.org/licenses/gpl-2.0.html.
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#ifndef QT3DRENDER_RENDER_RENDERSTATES_H
+#define QT3DRENDER_RENDER_RENDERSTATES_H
+
+#include <Qt3DRenderer/private/genericstate_p.h>
+
+#include <QOpenGLContext>
+
+QT_BEGIN_NAMESPACE
+
+namespace Qt3DRender {
+namespace Render {
+
+class Q_AUTOTEST_EXPORT BlendState : public GenericState2<BlendState, GLenum, GLenum>
+{
+public:
+    virtual void apply(GraphicsContext *gc) const Q_DECL_OVERRIDE;
+    virtual StateMaskSet mask() const Q_DECL_OVERRIDE
+    { return BlendStateMask; }
+
+    static BlendState *getOrCreate(GLenum src, GLenum dst);
+private:
+    BlendState(GLenum src, GLenum dst);
+};
+
+class Q_AUTOTEST_EXPORT BlendStateSeparate : public GenericState4<BlendStateSeparate, GLenum, GLenum, GLenum, GLenum>
+{
+public:
+    virtual void apply(GraphicsContext *gc) const Q_DECL_OVERRIDE;
+    virtual StateMaskSet mask() const Q_DECL_OVERRIDE
+    { return BlendStateMask; }
+
+    static BlendStateSeparate *getOrCreate(GLenum srcRGB, GLenum dstRGB, GLenum srcAlpha, GLenum dstAlpha);
+private:
+    BlendStateSeparate(GLenum srcRGB, GLenum dstRGB, GLenum srcAlpha, GLenum dstAlpha);
+};
+
+class Q_AUTOTEST_EXPORT BlendEquation : public GenericState1<BlendEquation, GLenum>
+{
+public:
+    virtual void apply(GraphicsContext *gc) const Q_DECL_OVERRIDE;
+
+    virtual StateMaskSet mask() const Q_DECL_OVERRIDE
+    { return BlendStateMask; }
+
+    static BlendEquation *getOrCreate(GLenum func);
+
+private:
+    BlendEquation(GLenum func);
+};
+
+
+class Q_AUTOTEST_EXPORT AlphaFunc : public GenericState2<AlphaFunc, GLenum, GLclampf>
+{
+public:
+    virtual void apply(GraphicsContext *gc) const Q_DECL_OVERRIDE;
+
+    virtual StateMaskSet mask() const Q_DECL_OVERRIDE
+    { return AlphaTestMask; }
+
+    static AlphaFunc *getOrCreate(GLenum func, GLclampf value);
+private:
+    AlphaFunc(GLenum func, GLclampf value);
+};
+
+class Q_AUTOTEST_EXPORT DepthTest : public GenericState1<DepthTest, GLenum>
+{
+public:
+    virtual void apply(GraphicsContext *gc) const Q_DECL_OVERRIDE;
+
+    virtual StateMaskSet mask() const Q_DECL_OVERRIDE
+    { return DepthTestStateMask; }
+
+    static DepthTest *getOrCreate(GLenum func);
+
+private:
+    DepthTest(GLenum func);
+};
+
+class Q_AUTOTEST_EXPORT DepthMask : public GenericState1<DepthMask, GLboolean>
+{
+public:
+    virtual void apply(GraphicsContext *gc) const Q_DECL_OVERRIDE;
+
+    virtual StateMaskSet mask() const  Q_DECL_OVERRIDE
+    { return DepthWriteStateMask; }
+
+    static DepthMask *getOrCreate(GLboolean func);
+
+private:
+    DepthMask(GLboolean func);
+};
+
+class Q_AUTOTEST_EXPORT CullFace : public GenericState1<CullFace, GLenum>
+{
+public:
+    virtual void apply(GraphicsContext *gc) const Q_DECL_OVERRIDE;
+
+    virtual StateMaskSet mask() const Q_DECL_OVERRIDE
+    { return CullFaceStateMask; }
+
+    static CullFace *getOrCreate(GLenum func);
+
+private:
+    CullFace(GLenum func);
+};
+
+class Q_AUTOTEST_EXPORT FrontFace : public GenericState1<FrontFace, GLenum>
+{
+public:
+    virtual void apply(GraphicsContext *gc) const Q_DECL_OVERRIDE;
+
+    virtual StateMaskSet mask() const Q_DECL_OVERRIDE
+    { return FrontFaceStateMask; }
+    static FrontFace *getOrCreate(GLenum func);
+
+private:
+    FrontFace(GLenum func);
+};
+
+class Q_AUTOTEST_EXPORT Dithering : public RenderState
+{
+public:
+    virtual void apply(GraphicsContext *gc) const Q_DECL_OVERRIDE;
+    virtual StateMaskSet mask() const Q_DECL_OVERRIDE
+    { return DitheringStateMask; }
+
+    bool isEqual(const Dithering &) { return true; }
+
+    static Dithering *getOrCreate();
+private:
+    Dithering();
+};
+
+class Q_AUTOTEST_EXPORT ScissorTest : public GenericState4<ScissorTest, int, int, int, int>
+{
+public:
+    virtual void apply(GraphicsContext *gc) const Q_DECL_OVERRIDE;
+    virtual StateMaskSet mask() const Q_DECL_OVERRIDE
+    { return ScissorStateMask; }
+
+    static ScissorTest *getOrCreate(int left, int bottom, int width, int height);
+
+private:
+    ScissorTest(int left, int bottom, int width, int height);
+};
+
+class Q_AUTOTEST_EXPORT StencilTest : public GenericState6<StencilTest, GLenum, int, uint, GLenum, int, uint>
+{
+public:
+    virtual void apply(GraphicsContext *gc) const Q_DECL_OVERRIDE;
+    virtual StateMaskSet mask() const Q_DECL_OVERRIDE
+    { return StencilTestStateMask; }
+    static StencilTest *getOrCreate(GLenum frontFunc, int frontRef, uint frontMask, GLenum backFunc, int backRef, uint backMask);
+
+private:
+    StencilTest(GLenum frontFunc, int frontRef, uint frontMask, GLenum backFunc, int backRef, uint backMask);
+};
+
+class Q_AUTOTEST_EXPORT AlphaCoverage : public RenderState
+{
+public:
+    void apply(GraphicsContext *gc) const Q_DECL_OVERRIDE;
+    StateMaskSet mask() const Q_DECL_OVERRIDE
+    { return AlphaCoverageStateMask; }
+
+    bool isEqual(const AlphaCoverage &) { return true; }
+
+    static AlphaCoverage *getOrCreate();
+
+private:
+    AlphaCoverage();
+};
+
+class Q_AUTOTEST_EXPORT PolygonOffset : public GenericState2<PolygonOffset, GLfloat, GLfloat>
+{
+public:
+    void apply(GraphicsContext *gc) const Q_DECL_OVERRIDE;
+    StateMaskSet mask() const Q_DECL_OVERRIDE
+    { return PolygonOffsetStateMask; }
+
+    static PolygonOffset *getOrCreate(GLfloat factor, GLfloat units);
+
+private:
+    PolygonOffset(GLfloat factor, GLfloat units);
+};
+
+class Q_AUTOTEST_EXPORT ColorMask : public GenericState4<ColorMask, GLboolean, GLboolean, GLboolean, GLboolean>
+{
+public:
+    void apply(GraphicsContext *gc) const Q_DECL_FINAL;
+    StateMaskSet mask() const Q_DECL_FINAL { return ColorStateMask; }
+
+    static ColorMask *getOrCreate(GLboolean red, GLboolean green, GLboolean blue, GLboolean alpha);
+
+private:
+    ColorMask(GLboolean red, GLboolean green, GLboolean blue, GLboolean alpha);
+};
+
+class Q_AUTOTEST_EXPORT ClipPlane : public GenericState1<ClipPlane, int>
+{
+public:
+    void apply(GraphicsContext *gc) const Q_DECL_FINAL;
+
+    StateMaskSet mask() const Q_DECL_FINAL
+    { return ClipPlaneMask; }
+    static ClipPlane *getOrCreate(int plane);
+
+private:
+    ClipPlane(int plane);
+};
+
+class Q_AUTOTEST_EXPORT StencilOp : public GenericState6<StencilOp, GLenum, GLenum, GLenum, GLenum, GLenum, GLenum>
+{
+public:
+    void apply(GraphicsContext *gc) const Q_DECL_FINAL;
+
+    StateMaskSet mask() const Q_DECL_FINAL
+    { return StencilOpMask; }
+    static StencilOp *getOrCreate(GLenum fsfail, GLenum fdfail, GLenum fdspass,
+                                  GLenum bsfail, GLenum bdfail, GLenum bdspass);
+
+private:
+    StencilOp(GLenum fsfail, GLenum fdfail, GLenum fdspass,
+              GLenum bsfail, GLenum bdfail, GLenum bdspass);
+};
+
+class Q_AUTOTEST_EXPORT StencilMask : public GenericState2<StencilMask, uint, uint>
+{
+public:
+    void apply(GraphicsContext *gc) const Q_DECL_FINAL;
+
+    StateMaskSet mask() const Q_DECL_FINAL
+    { return StencilWriteStateMask; }
+    static StencilMask *getOrCreate(uint frontMask, uint backMask);
+
+private:
+    StencilMask(uint frontMask, uint backMask);
+};
+
+} // namespace Render
+} // namespace Qt3DRender
+
+QT_END_NAMESPACE
+
+#endif // QT3DRENDER_RENDER_RENDERSTATES_H