src/render/SDL_d3dmath.h
author Sam Lantinga <slouken@libsdl.org>
Fri, 22 Sep 2017 11:25:52 -0700
changeset 11525 8df7a59b5528
parent 11279 b9b53f45bec6
child 11811 5d94cb6b24d3
permissions -rw-r--r--
Fixed Mac OS X build
     1 /*
     2   Simple DirectMedia Layer
     3   Copyright (C) 1997-2017 Sam Lantinga <slouken@libsdl.org>
     4 
     5   This software is provided 'as-is', without any express or implied
     6   warranty.  In no event will the authors be held liable for any damages
     7   arising from the use of this software.
     8 
     9   Permission is granted to anyone to use this software for any purpose,
    10   including commercial applications, and to alter it and redistribute it
    11   freely, subject to the following restrictions:
    12 
    13   1. The origin of this software must not be misrepresented; you must not
    14      claim that you wrote the original software. If you use this software
    15      in a product, an acknowledgment in the product documentation would be
    16      appreciated but is not required.
    17   2. Altered source versions must be plainly marked as such, and must not be
    18      misrepresented as being the original software.
    19   3. This notice may not be removed or altered from any source distribution.
    20 */
    21 #include "../SDL_internal.h"
    22 
    23 #if (SDL_VIDEO_RENDER_D3D || SDL_VIDEO_RENDER_D3D11) && !SDL_RENDER_DISABLED
    24 
    25 /* Direct3D matrix math functions */
    26 
    27 typedef struct
    28 {
    29     float x;
    30     float y;
    31 } Float2;
    32 
    33 typedef struct
    34 {
    35     float x;
    36     float y;
    37     float z;
    38 } Float3;
    39 
    40 typedef struct
    41 {
    42     float x;
    43     float y;
    44     float z;
    45     float w;
    46 } Float4;
    47 
    48 typedef struct
    49 {
    50     union {
    51         struct {
    52             float _11, _12, _13, _14;
    53             float _21, _22, _23, _24;
    54             float _31, _32, _33, _34;
    55             float _41, _42, _43, _44;
    56         } v;
    57         float m[4][4];
    58     };
    59 } Float4X4;
    60 
    61 
    62 Float4X4 MatrixIdentity();
    63 Float4X4 MatrixMultiply(Float4X4 M1, Float4X4 M2);
    64 Float4X4 MatrixScaling(float x, float y, float z);
    65 Float4X4 MatrixTranslation(float x, float y, float z);
    66 Float4X4 MatrixRotationX(float r);
    67 Float4X4 MatrixRotationY(float r);
    68 Float4X4 MatrixRotationZ(float r);
    69 
    70 #endif /* (SDL_VIDEO_RENDER_D3D || SDL_VIDEO_RENDER_D3D11) && !SDL_RENDER_DISABLED */
    71 
    72 /* vi: set ts=4 sw=4 expandtab: */