/* * ***** BEGIN GPL LICENSE BLOCK ***** * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License * as published by the Free Software Foundation; either version 2 * of the License, or (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software Foundation, * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. * * The Original Code is Copyright (C) 2012 Blender Foundation. * All rights reserved. * * The Original Code is: all of this file. * * Contributor(s): Alexandr Kuznetsov, Jason Wilkins, Mike Erwin * * ***** END GPL LICENSE BLOCK ***** */ /** \file source/blender/gpu/GPU_matrix.h * \ingroup gpu */ #ifndef __GPU_MATRIX_H__ #define __GPU_MATRIX_H__ #include "BLI_sys_types.h" #include "GPU_glew.h" #include "../../../intern/gawain/gawain/shader_interface.h" #ifdef __cplusplus extern "C" { #endif void gpuMatrixReset(void); /* to Identity transform & empty stack */ /* ModelView Matrix (2D or 3D) */ void gpuPushMatrix(void); /* TODO: PushCopy vs PushIdentity? */ void gpuPopMatrix(void); void gpuLoadIdentity(void); void gpuScaleUniform(float factor); /* 3D ModelView Matrix */ void gpuLoadMatrix(const float m[4][4]); void gpuMultMatrix(const float m[4][4]); void gpuTranslate3f(float x, float y, float z); void gpuTranslate3fv(const float vec[3]); void gpuScale3f(float x, float y, float z); void gpuScale3fv(const float vec[3]); void gpuRotate3f(float deg, float x, float y, float z); /* axis of rotation should be a unit vector */ void gpuRotate3fv(float deg, const float axis[3]); /* axis of rotation should be a unit vector */ void gpuRotateAxis(float deg, char axis); /* TODO: enum for axis? */ void gpuLookAt(float eyeX, float eyeY, float eyeZ, float centerX, float centerY, float centerZ, float upX, float upY, float upZ); /* TODO: variant that takes eye[3], center[3], up[3] */ /* 2D ModelView Matrix */ void gpuTranslate2f(float x, float y); void gpuTranslate2fv(const float vec[2]); void gpuScale2f(float x, float y); void gpuScale2fv(const float vec[2]); void gpuRotate2D(float deg); /* Projection Matrix (2D or 3D) */ void gpuPushProjectionMatrix(void); void gpuPopProjectionMatrix(void); /* 3D Projection Matrix */ void gpuLoadIdentityProjectionMatrix(void); void gpuLoadProjectionMatrix(const float m[4][4]); void gpuOrtho(float left, float right, float bottom, float top, float near, float far); void gpuFrustum(float left, float right, float bottom, float top, float near, float far); void gpuPerspective(float fovy, float aspect, float near, float far); /* 3D Projection between Window and World Space */ void gpuProject(const float world[3], const float model[4][4], const float proj[4][4], const int view[4], float win[3]); bool gpuUnProject(const float win[3], const float model[4][4], const float proj[4][4], const int view[4], float world[3]); /* 2D Projection Matrix */ void gpuOrtho2D(float left, float right, float bottom, float top); /* functions to get matrix values */ const float (*gpuGetModelViewMatrix(float m[4][4]))[4]; const float (*gpuGetProjectionMatrix(float m[4][4]))[4]; const float (*gpuGetModelViewProjectionMatrix(float m[4][4]))[4]; const float (*gpuGetNormalMatrix(float m[3][3]))[3]; const float (*gpuGetNormalMatrixInverse(float m[3][3]))[3]; /* set uniform values for currently bound shader */ void gpuBindMatrices(const Gwn_ShaderInterface*); bool gpuMatricesDirty(void); /* since last bind */ #ifdef __cplusplus } #endif #ifndef SUPPRESS_GENERIC_MATRIX_API #if defined(__STDC_VERSION__) && (__STDC_VERSION__ >= 201112L) #define _GPU_MAT3_CONST_CAST(x) (_Generic((x), \ void *: (const float (*)[3])(x), \ float *: (const float (*)[3])(x), \ float [9]: (const float (*)[3])(x), \ float (*)[4]: (const float (*)[3])(x), \ float [4][4]: (const float (*)[3])(x), \ const void *: (const float (*)[3])(x), \ const float *: (const float (*)[3])(x), \ const float [9]: (const float (*)[3])(x), \ const float (*)[3]: (const float (*)[3])(x), \ const float [3][3]: (const float (*)[3])(x)) \ ) #define _GPU_MAT3_CAST(x) (_Generic((x), \ void *: (float (*)[3])(x), \ float *: (float (*)[3])(x), \ float [9]: (float (*)[3])(x), \ float (*)[3]: (float (*)[3])(x), \ float [3][3]: (float (*)[3])(x)) \ ) #define _GPU_MAT4_CONST_CAST(x) (_Generic((x), \ void *: (const float (*)[4])(x), \ float *: (const float (*)[4])(x), \ float [16]: (const float (*)[4])(x), \ float (*)[4]: (const float (*)[4])(x), \ float [4][4]: (const float (*)[4])(x), \ const void *: (const float (*)[4])(x), \ const float *: (const float (*)[4])(x), \ const float [16]: (const float (*)[4])(x), \ const float (*)[4]: (const float (*)[4])(x), \ const float [4][4]: (const float (*)[4])(x)) \ ) #define _GPU_MAT4_CAST(x) (_Generic((x), \ void *: (float (*)[4])(x), \ float *: (float (*)[4])(x), \ float [16]: (float (*)[4])(x), \ float (*)[4]: (float (*)[4])(x), \ float [4][4]: (float (*)[4])(x)) \ ) #else # define _GPU_MAT3_CONST_CAST(x) (const float (*)[3])(x) # define _GPU_MAT3_CAST(x) (float (*)[3])(x) # define _GPU_MAT4_CONST_CAST(x) (const float (*)[4])(x) # define _GPU_MAT4_CAST(x) (float (*)[4])(x) #endif /* C11 */ /* make matrix inputs generic, to avoid warnings */ # define gpuMultMatrix(x) gpuMultMatrix(_GPU_MAT4_CONST_CAST(x)) # define gpuLoadMatrix(x) gpuLoadMatrix(_GPU_MAT4_CONST_CAST(x)) # define gpuLoadProjectionMatrix(x) gpuLoadProjectionMatrix(_GPU_MAT4_CONST_CAST(x)) # define gpuGetModelViewMatrix(x) gpuGetModelViewMatrix(_GPU_MAT4_CAST(x)) # define gpuGetProjectionMatrix(x) gpuGetProjectionMatrix(_GPU_MAT4_CAST(x)) # define gpuGetModelViewProjectionMatrix(x) gpuGetModelViewProjectionMatrix(_GPU_MAT4_CAST(x)) # define gpuGetNormalMatrix(x) gpuGetNormalMatrix(_GPU_MAT3_CAST(x)) # define gpuGetNormalMatrixInverse(x) gpuGetNormalMatrixInverse(_GPU_MAT3_CAST(x)) #endif /* SUPPRESS_GENERIC_MATRIX_API */ #endif /* __GPU_MATRIX_H__ */