nuclear@0: #ifndef UNISTATE_H_
nuclear@0: #define UNISTATE_H_
nuclear@0: 
nuclear@0: #include "vmath/vmath.h"
nuclear@0: 
nuclear@0: class ShaderProg;
nuclear@0: 
nuclear@0: enum StType {
nuclear@0: 	ST_UNKNOWN,
nuclear@0: 	ST_INT,	ST_INT2, ST_INT3, ST_INT4,
nuclear@0: 	ST_FLOAT, ST_FLOAT2, ST_FLOAT3, ST_FLOAT4,
nuclear@0: 	ST_MATRIX3, ST_MATRIX4
nuclear@0: };
nuclear@0: 
nuclear@0: int add_unistate(const char *name, StType type);
nuclear@0: int get_unistate_index(const char *name);
nuclear@0: 
nuclear@0: /** set the uniform state identified by \param sidx by copying
nuclear@0:  * a number of elements from \param val. If \param count is 0
nuclear@0:  * then it's automatically set based on the type of this state item.
nuclear@0:  * @{ */
nuclear@0: void set_unistate(int sidx, const int *val, int count = 0);
nuclear@0: void set_unistate(int sidx, const float *val, int count = 0);
nuclear@0: /// @}
nuclear@0: 
nuclear@0: /** get the uniform state identified by \param sidx by copying
nuclear@0:  * a number of elements into \param val. If \param count is 0
nuclear@0:  * then it's automatically set based on the type of this state item.
nuclear@0:  * @{ */
nuclear@0: void get_unistate(int sidx, int *val, int count = 0);
nuclear@0: void get_unistate(int sidx, float *val, int count = 0);
nuclear@0: /// @}
nuclear@0: 
nuclear@0: /// convenience versions of set_unistate @{
nuclear@0: void set_unistate(int sidx, int val);
nuclear@0: void set_unistate(int sidx, float val);
nuclear@0: void set_unistate(int sidx, const Vector2 &vec);
nuclear@0: void set_unistate(int sidx, const Vector3 &vec);
nuclear@0: void set_unistate(int sidx, const Vector4 &vec);
nuclear@0: void set_unistate(int sidx, const Matrix3x3 &mat);
nuclear@0: void set_unistate(int sidx, const Matrix4x4 &mat);
nuclear@0: /// @}
nuclear@0: 
nuclear@0: /** convenience functions for setting the uniform state by name.
nuclear@0:  * if the name cannot be found in the current set of uniform state
nuclear@0:  * items, a new one is created with a type derived from the variant
nuclear@0:  * of the function that was called (which might not be what you want).
nuclear@0:  * The index of the state item is returned.
nuclear@0:  * @{ */
nuclear@0: int set_unistate(const char *name, int *val, int count = 0);
nuclear@0: int set_unistate(const char *name, float *val, int count = 0);
nuclear@0: int set_unistate(const char *name, int val);
nuclear@0: int set_unistate(const char *name, float val);
nuclear@0: int set_unistate(const char *name, const Vector2 &vec);
nuclear@0: int set_unistate(const char *name, const Vector3 &vec);
nuclear@0: int set_unistate(const char *name, const Vector4 &vec);
nuclear@0: int set_unistate(const char *name, const Matrix3x3 &mat);
nuclear@0: int set_unistate(const char *name, const Matrix4x4 &mat);
nuclear@0: /// @}
nuclear@0: 
nuclear@0: /// convenience versions of get_unistate @{
nuclear@0: int get_unistate_int(int sidx);
nuclear@0: float get_unistate_float(int sidx);
nuclear@0: Vector2 get_unistate_vec2(int sidx);
nuclear@0: Vector3 get_unistate_vec3(int sidx);
nuclear@0: Vector4 get_unistate_vec4(int sidx);
nuclear@0: Matrix3x3 get_unistate_mat3(int sidx);
nuclear@0: Matrix4x4 get_unistate_mat4(int sidx);
nuclear@0: /// @}
nuclear@0: 
nuclear@0: /// convenience versions of get_unistate for getting the uniform state by name @{
nuclear@0: int get_unistate_int(const char *name);
nuclear@0: float get_unistate_float(const char *name);
nuclear@0: Vector2 get_unistate_vec2(const char *name);
nuclear@0: Vector3 get_unistate_vec3(const char *name);
nuclear@0: Vector4 get_unistate_vec4(const char *name);
nuclear@0: Matrix3x3 get_unistate_mat3(const char *name);
nuclear@0: Matrix4x4 get_unistate_mat4(const char *name);
nuclear@0: /// @}
nuclear@0: 
nuclear@0: /** Prepare for rendering by setting up all the state uniforms in the shader sdr.
nuclear@0:  * If sdr is null, then use the "current" shader as per ShaderProg::current
nuclear@0:  */
nuclear@0: void setup_unistate(const ShaderProg *sdr = 0);
nuclear@0: 
nuclear@0: bool setup_unistate(int sidx, const ShaderProg *sdr, int loc);
nuclear@0: bool setup_unistate(const char *name, const ShaderProg *sdr);
nuclear@0: 
nuclear@0: // special functions for setting the rendering pipeline matrices
nuclear@0: void set_world_matrix(const Matrix4x4 &mat);
nuclear@0: void set_view_matrix(const Matrix4x4 &mat);
nuclear@0: void set_projection_matrix(const Matrix4x4 &mat);
nuclear@0: void set_texture_matrix(const Matrix4x4 &mat);
nuclear@0: 
nuclear@0: Matrix4x4 get_world_matrix();
nuclear@0: Matrix4x4 get_view_matrix();
nuclear@0: Matrix4x4 get_projection_matrix();
nuclear@0: Matrix4x4 get_texture_matrix();
nuclear@0: 
nuclear@0: void setup_gl_matrices();	// this shouldn't be needed in the final code
nuclear@0: 
nuclear@0: // TODO should do a matrix stack at some point ...
nuclear@0: 
nuclear@0: #endif	// UNISTATE_H_