mirror of https://github.com/encounter/SDL.git
73 lines
1.9 KiB
C
73 lines
1.9 KiB
C
/*
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Simple DirectMedia Layer
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Copyright (C) 1997-2021 Sam Lantinga <slouken@libsdl.org>
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This software is provided 'as-is', without any express or implied
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warranty. In no event will the authors be held liable for any damages
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arising from the use of this software.
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Permission is granted to anyone to use this software for any purpose,
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including commercial applications, and to alter it and redistribute it
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freely, subject to the following restrictions:
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1. The origin of this software must not be misrepresented; you must not
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claim that you wrote the original software. If you use this software
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in a product, an acknowledgment in the product documentation would be
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appreciated but is not required.
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2. Altered source versions must be plainly marked as such, and must not be
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misrepresented as being the original software.
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3. This notice may not be removed or altered from any source distribution.
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*/
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#include "../SDL_internal.h"
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#if (SDL_VIDEO_RENDER_D3D || SDL_VIDEO_RENDER_D3D11) && !SDL_RENDER_DISABLED
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/* Direct3D matrix math functions */
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typedef struct
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{
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float x;
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float y;
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} Float2;
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typedef struct
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{
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float x;
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float y;
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float z;
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} Float3;
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typedef struct
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{
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float x;
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float y;
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float z;
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float w;
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} Float4;
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typedef struct
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{
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union {
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struct {
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float _11, _12, _13, _14;
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float _21, _22, _23, _24;
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float _31, _32, _33, _34;
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float _41, _42, _43, _44;
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} v;
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float m[4][4];
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};
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} Float4X4;
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Float4X4 MatrixIdentity();
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Float4X4 MatrixMultiply(Float4X4 M1, Float4X4 M2);
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Float4X4 MatrixScaling(float x, float y, float z);
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Float4X4 MatrixTranslation(float x, float y, float z);
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Float4X4 MatrixRotationX(float r);
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Float4X4 MatrixRotationY(float r);
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Float4X4 MatrixRotationZ(float r);
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#endif /* (SDL_VIDEO_RENDER_D3D || SDL_VIDEO_RENDER_D3D11) && !SDL_RENDER_DISABLED */
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/* vi: set ts=4 sw=4 expandtab: */
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