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#pragma once
#ifndef DOXYGEN_GENERATING_OUTPUT
#define NCINE_INCLUDE_OPENGL
#include "../../CommonHeaders.h"
#endif
#include "../../../Main.h"
namespace nCine
{
class GLUniform;
/// Caches a uniform value and then updates it in the shader
class GLUniformCache
{
public:
GLUniformCache();
explicit GLUniformCache(const GLUniform* uniform);
inline const GLUniform* GetUniform() const {
return uniform_;
}
inline const GLubyte* GetDataPointer() const {
return dataPointer_;
}
inline void SetDataPointer(GLubyte* dataPointer) {
dataPointer_ = dataPointer;
}
const GLfloat* GetFloatVector() const;
GLfloat GetFloatValue(std::uint32_t index) const;
const GLint* GetIntVector() const;
GLint GetIntValue(std::uint32_t index) const;
bool SetFloatVector(const GLfloat* vec);
bool SetFloatValue(GLfloat v0);
bool SetFloatValue(GLfloat v0, GLfloat v1);
bool SetFloatValue(GLfloat v0, GLfloat v1, GLfloat v2);
bool SetFloatValue(GLfloat v0, GLfloat v1, GLfloat v2, GLfloat v3);
bool SetIntVector(const GLint* vec);
bool SetIntValue(GLint v0);
bool SetIntValue(GLint v0, GLint v1);
bool SetIntValue(GLint v0, GLint v1, GLint v2);
bool SetIntValue(GLint v0, GLint v1, GLint v2, GLint v3);
inline bool IsDirty() const {
return isDirty_;
}
inline void SetDirty(bool isDirty) {
isDirty_ = isDirty;
}
bool CommitValue();
private:
const GLUniform* uniform_;
GLubyte* dataPointer_;
/// A flag to signal if the uniform needs to be committed
bool isDirty_;
bool CheckFloat() const;
bool CheckInt() const;
bool CheckComponents(std::uint32_t requiredComponents) const;
};
}
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