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/*
* Copyright (C) 2011 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
/** @file rs_matrix.rsh
* \brief Matrix routines
*
*
*/
#ifndef __RS_MATRIX_RSH__
#define __RS_MATRIX_RSH__
/**
* Set one element of a matrix.
*
* @param m The matrix to be set
* @param row
* @param col
* @param v
*
* @return void
*/
_RS_RUNTIME void __attribute__((overloadable))
rsMatrixSet(rs_matrix4x4 *m, uint32_t row, uint32_t col, float v);
/**
* \overload
*/
_RS_RUNTIME void __attribute__((overloadable))
rsMatrixSet(rs_matrix3x3 *m, uint32_t row, uint32_t col, float v);
/**
* \overload
*/
_RS_RUNTIME void __attribute__((overloadable))
rsMatrixSet(rs_matrix2x2 *m, uint32_t row, uint32_t col, float v);
/**
* Get one element of a matrix.
*
* @param m The matrix to read from
* @param row
* @param col
*
* @return float
*/
_RS_RUNTIME float __attribute__((overloadable))
rsMatrixGet(const rs_matrix4x4 *m, uint32_t row, uint32_t col);
/**
* \overload
*/
_RS_RUNTIME float __attribute__((overloadable))
rsMatrixGet(const rs_matrix3x3 *m, uint32_t row, uint32_t col);
/**
* \overload
*/
_RS_RUNTIME float __attribute__((overloadable))
rsMatrixGet(const rs_matrix2x2 *m, uint32_t row, uint32_t col);
/**
* Set the elements of a matrix to the identity matrix.
*
* @param m
*/
extern void __attribute__((overloadable)) rsMatrixLoadIdentity(rs_matrix4x4 *m);
/**
* \overload
*/
extern void __attribute__((overloadable)) rsMatrixLoadIdentity(rs_matrix3x3 *m);
/**
* \overload
*/
extern void __attribute__((overloadable)) rsMatrixLoadIdentity(rs_matrix2x2 *m);
/**
* Set the elements of a matrix from an array of floats.
*
* @param m
*/
extern void __attribute__((overloadable)) rsMatrixLoad(rs_matrix4x4 *m, const float *v);
/**
* \overload
*/
extern void __attribute__((overloadable)) rsMatrixLoad(rs_matrix3x3 *m, const float *v);
/**
* \overload
*/
extern void __attribute__((overloadable)) rsMatrixLoad(rs_matrix2x2 *m, const float *v);
/**
* \overload
*/
extern void __attribute__((overloadable)) rsMatrixLoad(rs_matrix4x4 *m, const rs_matrix4x4 *v);
/**
* \overload
*/
extern void __attribute__((overloadable)) rsMatrixLoad(rs_matrix4x4 *m, const rs_matrix3x3 *v);
/**
* Set the elements of a matrix from another matrix.
*
* @param m
*/
extern void __attribute__((overloadable)) rsMatrixLoad(rs_matrix4x4 *m, const rs_matrix2x2 *v);
/**
* \overload
*/
extern void __attribute__((overloadable)) rsMatrixLoad(rs_matrix3x3 *m, const rs_matrix3x3 *v);
/**
* \overload
*/
extern void __attribute__((overloadable)) rsMatrixLoad(rs_matrix2x2 *m, const rs_matrix2x2 *v);
/**
* Load a rotation matrix.
*
* @param m
* @param rot
* @param x
* @param y
* @param z
*/
extern void __attribute__((overloadable))
rsMatrixLoadRotate(rs_matrix4x4 *m, float rot, float x, float y, float z);
/**
* Load a scale matrix.
*
* @param m
* @param x
* @param y
* @param z
*/
extern void __attribute__((overloadable))
rsMatrixLoadScale(rs_matrix4x4 *m, float x, float y, float z);
/**
* Load a translation matrix.
*
* @param m
* @param x
* @param y
* @param z
*/
extern void __attribute__((overloadable))
rsMatrixLoadTranslate(rs_matrix4x4 *m, float x, float y, float z);
/**
* Multiply two matrix (lhs, rhs) and place the result in m.
*
* @param m
* @param lhs
* @param rhs
*/
extern void __attribute__((overloadable))
rsMatrixLoadMultiply(rs_matrix4x4 *m, const rs_matrix4x4 *lhs, const rs_matrix4x4 *rhs);
/**
* \overload
*/
extern void __attribute__((overloadable))
rsMatrixLoadMultiply(rs_matrix3x3 *m, const rs_matrix3x3 *lhs, const rs_matrix3x3 *rhs);
/**
* \overload
*/
extern void __attribute__((overloadable))
rsMatrixLoadMultiply(rs_matrix2x2 *m, const rs_matrix2x2 *lhs, const rs_matrix2x2 *rhs);
/**
* Multiply the matrix m by rhs and place the result back into m.
*
* @param m (lhs)
* @param rhs
*/
extern void __attribute__((overloadable))
rsMatrixMultiply(rs_matrix4x4 *m, const rs_matrix4x4 *rhs);
/**
* \overload
*/
extern void __attribute__((overloadable))
rsMatrixMultiply(rs_matrix3x3 *m, const rs_matrix3x3 *rhs);
/**
* \overload
*/
extern void __attribute__((overloadable))
rsMatrixMultiply(rs_matrix2x2 *m, const rs_matrix2x2 *rhs);
/**
* Multiple matrix m with a rotation matrix
*
* @param m
* @param rot
* @param x
* @param y
* @param z
*/
extern void __attribute__((overloadable))
rsMatrixRotate(rs_matrix4x4 *m, float rot, float x, float y, float z);
/**
* Multiple matrix m with a scale matrix
*
* @param m
* @param x
* @param y
* @param z
*/
extern void __attribute__((overloadable))
rsMatrixScale(rs_matrix4x4 *m, float x, float y, float z);
/**
* Multiple matrix m with a translation matrix
*
* @param m
* @param x
* @param y
* @param z
*/
extern void __attribute__((overloadable))
rsMatrixTranslate(rs_matrix4x4 *m, float x, float y, float z);
/**
* Load an Ortho projection matrix constructed from the 6 planes
*
* @param m
* @param left
* @param right
* @param bottom
* @param top
* @param near
* @param far
*/
extern void __attribute__((overloadable))
rsMatrixLoadOrtho(rs_matrix4x4 *m, float left, float right, float bottom, float top, float near, float far);
/**
* Load an Frustum projection matrix constructed from the 6 planes
*
* @param m
* @param left
* @param right
* @param bottom
* @param top
* @param near
* @param far
*/
extern void __attribute__((overloadable))
rsMatrixLoadFrustum(rs_matrix4x4 *m, float left, float right, float bottom, float top, float near, float far);
/**
* Load an perspective projection matrix constructed from the 6 planes
*
* @param m
* @param fovy Field of view, in degrees along the Y axis.
* @param aspect Ratio of x / y.
* @param near
* @param far
*/
extern void __attribute__((overloadable))
rsMatrixLoadPerspective(rs_matrix4x4* m, float fovy, float aspect, float near, float far);
#if !defined(RS_VERSION) || (RS_VERSION < 14)
/**
* Multiply a vector by a matrix and return the result vector.
* API version 10-13
*/
_RS_RUNTIME float4 __attribute__((overloadable))
rsMatrixMultiply(rs_matrix4x4 *m, float4 in);
/**
* \overload
*/
_RS_RUNTIME float4 __attribute__((overloadable))
rsMatrixMultiply(rs_matrix4x4 *m, float3 in);
/**
* \overload
*/
_RS_RUNTIME float4 __attribute__((overloadable))
rsMatrixMultiply(rs_matrix4x4 *m, float2 in);
/**
* \overload
*/
_RS_RUNTIME float3 __attribute__((overloadable))
rsMatrixMultiply(rs_matrix3x3 *m, float3 in);
/**
* \overload
*/
_RS_RUNTIME float3 __attribute__((overloadable))
rsMatrixMultiply(rs_matrix3x3 *m, float2 in);
/**
* \overload
*/
_RS_RUNTIME float2 __attribute__((overloadable))
rsMatrixMultiply(rs_matrix2x2 *m, float2 in);
#else
/**
* Multiply a vector by a matrix and return the result vector.
* API version 14+
*/
_RS_RUNTIME float4 __attribute__((overloadable))
rsMatrixMultiply(const rs_matrix4x4 *m, float4 in);
/**
* \overload
*/
_RS_RUNTIME float4 __attribute__((overloadable))
rsMatrixMultiply(const rs_matrix4x4 *m, float3 in);
/**
* \overload
*/
_RS_RUNTIME float4 __attribute__((overloadable))
rsMatrixMultiply(const rs_matrix4x4 *m, float2 in);
/**
* \overload
*/
_RS_RUNTIME float3 __attribute__((overloadable))
rsMatrixMultiply(const rs_matrix3x3 *m, float3 in);
/**
* \overload
*/
_RS_RUNTIME float3 __attribute__((overloadable))
rsMatrixMultiply(const rs_matrix3x3 *m, float2 in);
/**
* \overload
*/
_RS_RUNTIME float2 __attribute__((overloadable))
rsMatrixMultiply(const rs_matrix2x2 *m, float2 in);
#endif
/**
* Returns true if the matrix was successfully inversed
*
* @param m
*/
extern bool __attribute__((overloadable)) rsMatrixInverse(rs_matrix4x4 *m);
/**
* Returns true if the matrix was successfully inversed and transposed.
*
* @param m
*/
extern bool __attribute__((overloadable)) rsMatrixInverseTranspose(rs_matrix4x4 *m);
/**
* Transpose the matrix m.
*
* @param m
*/
extern void __attribute__((overloadable)) rsMatrixTranspose(rs_matrix4x4 *m);
/**
* \overload
*/
extern void __attribute__((overloadable)) rsMatrixTranspose(rs_matrix3x3 *m);
/**
* \overload
*/
extern void __attribute__((overloadable)) rsMatrixTranspose(rs_matrix2x2 *m);
#endif
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