89 lines
2 KiB
C++
89 lines
2 KiB
C++
#ifndef OPENGLVARIABLE_H
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#define OPENGLVARIABLE_H
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#include "opengl_global.h"
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class QColor;
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class QVector3D;
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class QMatrix4x4;
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class QImage;
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namespace paysages {
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namespace opengl {
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/*!
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* \brief OpenGL variable that can be bound to a uniform for shaders.
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*/
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class OpenGLVariable {
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public:
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typedef enum {
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TYPE_NONE,
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TYPE_TEXTURE_2D,
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TYPE_TEXTURE_3D,
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TYPE_TEXTURE_4D,
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TYPE_INTEGER,
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TYPE_FLOAT,
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TYPE_VECTOR3,
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TYPE_MATRIX4,
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TYPE_COLOR
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} OpenGLVariableType;
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public:
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OpenGLVariable(const string &name);
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~OpenGLVariable();
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void apply(OpenGLShaderProgram *program, int &texture_unit);
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/**
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* Release any allocated resource in the opengl context.
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*
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* Must be called in the opengl rendering thread, and before the destructor is called.
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*/
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void destroy(OpenGLFunctions *functions);
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void set(const Texture2D *texture, bool repeat = false, bool color = true);
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void set(const QImage &texture, bool repeat = false, bool color = true);
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void set(const Texture3D *texture, bool repeat = false, bool color = true);
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void set(const Texture4D *texture, bool repeat = false, bool color = true);
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void set(int value);
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void set(float value);
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void set(const Vector3 &vector);
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void set(const QVector3D &vector);
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void set(const Matrix4 &matrix);
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void set(const QMatrix4x4 &matrix);
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void set(const Color &color);
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inline int getIntValue() const {
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return value_int;
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}
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inline float getFloatValue() const {
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return value_float;
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}
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protected:
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void uploadTexture(OpenGLRenderer *renderer);
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private:
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string name;
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OpenGLVariableType type;
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int value_int;
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float value_float;
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QColor *value_color;
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QVector3D *value_vector3;
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QMatrix4x4 *value_matrix4;
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float *value_texture_data;
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int texture_size_x;
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int texture_size_y;
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int texture_size_z;
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bool texture_toupload;
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bool texture_repeat;
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bool texture_color;
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unsigned int texture_id;
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};
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}
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}
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#endif // OPENGLVARIABLE_H
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