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#ifndef QT3DRENDER_RENDER_GRAPHICSHELPERGL3_H
#define QT3DRENDER_RENDER_GRAPHICSHELPERGL3_H

//
//  W A R N I N G
//  -------------
//
// This file is not part of the Qt API.  It exists for the convenience
// of other Qt classes.  This header file may change from version to
// version without notice, or even be removed.
//
// We mean it.
//

#include <Qt3DRender/private/graphicshelperinterface_p.h>
#include <QtCore/qscopedpointer.h>

#ifndef QT_OPENGL_ES_2

QT_BEGIN_NAMESPACE

class QOpenGLFunctions_3_2_Core;
class QOpenGLExtension_ARB_tessellation_shader;

namespace Qt3DRender {
namespace Render {

class GraphicsHelperGL3 : public GraphicsHelperInterface
{
public:
    GraphicsHelperGL3();

    // QGraphicHelperInterface interface
    void alphaTest(GLenum mode1, GLenum mode2) Q_DECL_OVERRIDE;
    void bindBufferBase(GLenum target, GLuint index, GLuint buffer) Q_DECL_OVERRIDE;
    void bindFragDataLocation(GLuint shader, const QHash<QString, int> &outputs) Q_DECL_OVERRIDE;
    void bindFrameBufferAttachment(QOpenGLTexture *texture, const Attachment &attachment) Q_DECL_OVERRIDE;
    void bindFrameBufferObject(GLuint frameBufferId) Q_DECL_OVERRIDE;
    void bindShaderStorageBlock(GLuint programId, GLuint shaderStorageBlockIndex, GLuint shaderStorageBlockBinding) Q_DECL_OVERRIDE;
    void bindUniformBlock(GLuint programId, GLuint uniformBlockIndex, GLuint uniformBlockBinding) Q_DECL_OVERRIDE;
    void bindUniform(const QVariant &v, const ShaderUniform &description) Q_DECL_OVERRIDE;
    void blendEquation(GLenum mode) Q_DECL_OVERRIDE;
    void blendFunci(GLuint buf, GLenum sfactor, GLenum dfactor) Q_DECL_OVERRIDE;
    void blendFuncSeparatei(GLuint buf, GLenum sRGB, GLenum dRGB, GLenum sAlpha, GLenum dAlpha) Q_DECL_OVERRIDE;
    GLuint boundFrameBufferObject() Q_DECL_OVERRIDE;
    void buildUniformBuffer(const QVariant &v, const ShaderUniform &description, QByteArray &buffer) Q_DECL_OVERRIDE;
    bool checkFrameBufferComplete() Q_DECL_OVERRIDE;
    void clearBufferf(GLint drawbuffer, const QVector4D &values) Q_DECL_OVERRIDE;
    GLuint createFrameBufferObject() Q_DECL_OVERRIDE;
    void depthMask(GLenum mode) Q_DECL_OVERRIDE;
    void depthTest(GLenum mode) Q_DECL_OVERRIDE;
    void disableClipPlane(int clipPlane) Q_DECL_OVERRIDE;
    void disablei(GLenum cap, GLuint index) Q_DECL_OVERRIDE;
    void disablePrimitiveRestart() Q_DECL_OVERRIDE;
    void dispatchCompute(GLuint wx, GLuint wy, GLuint wz) Q_DECL_OVERRIDE;
    void drawArrays(GLenum primitiveType, GLint first, GLsizei count) Q_DECL_OVERRIDE;
    void drawArraysInstanced(GLenum primitiveType, GLint first, GLsizei count, GLsizei instances) Q_DECL_OVERRIDE;
    void drawArraysInstancedBaseInstance(GLenum primitiveType, GLint first, GLsizei count, GLsizei instances, GLsizei baseInstance) Q_DECL_OVERRIDE;
    void drawBuffers(GLsizei n, const int *bufs) Q_DECL_OVERRIDE;
    void drawElements(GLenum primitiveType, GLsizei primitiveCount, GLint indexType, void *indices, GLint baseVertex = 0) Q_DECL_OVERRIDE;
    void drawElementsInstancedBaseVertexBaseInstance(GLenum primitiveType, GLsizei primitiveCount, GLint indexType, void *indices, GLsizei instances, GLint baseVertex = 0,  GLint baseInstance = 0) Q_DECL_OVERRIDE;
    void enableClipPlane(int clipPlane) Q_DECL_OVERRIDE;
    void enablei(GLenum cap, GLuint index) Q_DECL_OVERRIDE;
    void enablePrimitiveRestart(int primitiveRestartIndex) Q_DECL_OVERRIDE;
    void frontFace(GLenum mode) Q_DECL_OVERRIDE;
    QSize getRenderBufferDimensions(GLuint renderBufferId) Q_DECL_OVERRIDE;
    QSize getTextureDimensions(GLuint textureId, GLenum target, uint level = 0) Q_DECL_OVERRIDE;
    void initializeHelper(QOpenGLContext *context, QAbstractOpenGLFunctions *functions) Q_DECL_OVERRIDE;
    void pointSize(bool programmable, GLfloat value) Q_DECL_OVERRIDE;
    GLint maxClipPlaneCount() Q_DECL_OVERRIDE;
    QVector<ShaderUniformBlock> programUniformBlocks(GLuint programId) Q_DECL_OVERRIDE;
    QVector<ShaderAttribute> programAttributesAndLocations(GLuint programId) Q_DECL_OVERRIDE;
    QVector<ShaderUniform> programUniformsAndLocations(GLuint programId) Q_DECL_OVERRIDE;
    QVector<ShaderStorageBlock> programShaderStorageBlocks(GLuint programId) Q_DECL_OVERRIDE;
    void releaseFrameBufferObject(GLuint frameBufferId) Q_DECL_OVERRIDE;
    void setMSAAEnabled(bool enable) Q_DECL_OVERRIDE;
    void setAlphaCoverageEnabled(bool enable) Q_DECL_OVERRIDE;
    void setClipPlane(int clipPlane, const QVector3D &normal, float distance) Q_DECL_OVERRIDE;
    void setSeamlessCubemap(bool enable) Q_DECL_OVERRIDE;
    void setVerticesPerPatch(GLint verticesPerPatch) Q_DECL_OVERRIDE;
    bool supportsFeature(Feature feature) const Q_DECL_OVERRIDE;
    uint uniformByteSize(const ShaderUniform &description) Q_DECL_OVERRIDE;
    void useProgram(GLuint programId) Q_DECL_OVERRIDE;
    void vertexAttribDivisor(GLuint index, GLuint divisor) Q_DECL_OVERRIDE;

private:
    QOpenGLFunctions_3_2_Core *m_funcs;
    QScopedPointer<QOpenGLExtension_ARB_tessellation_shader> m_tessFuncs;
};

} // namespace Render
} // namespace Qt3DRender

QT_END_NAMESPACE

#endif // !QT_OPENGL_ES_2

#endif // QT3DRENDER_RENDER_GRAPHICSHELPERGL3_H
