mirror of https://github.com/Xaymar/obs-StreamFX
77 lines
3.3 KiB
Plaintext
77 lines
3.3 KiB
Plaintext
// AUTOGENERATED COPYRIGHT HEADER START
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// Copyright (C) 2021-2023 Michael Fabian 'Xaymar' Dirks <info@xaymar.com>
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// AUTOGENERATED COPYRIGHT HEADER END
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//
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// Redistribution and use in source and binary forms, with or without
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// modification, are permitted provided that the following conditions are met:
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//
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// 1. Redistributions of source code must retain the above copyright notice,
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// this list of conditions and the following disclaimer.
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// 2. Redistributions in binary form must reproduce the above copyright notice,
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// this list of conditions and the following disclaimer in the documentation
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// and/or other materials provided with the distribution.
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// 3. Neither the name of the copyright holder nor the names of its contributors
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// may be used to endorse or promote products derived from this software
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// without specific prior written permission.
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//
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// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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// AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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// ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
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// LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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// CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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// SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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// CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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// ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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// POSSIBILITY OF SUCH DAMAGE.
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// ================================================================================ //
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// Matrices
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// ================================================================================ //
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#define RGB_YUV_709 float3x3( 0.21260, 0.71520, 0.07220,\
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-0.11457, -0.38543, 0.50000,\
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0.50000, -0.45415, -0.04585)
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#define YUV_709_RGB float3x3( 1.00000, 0.00000, 1.57480,\
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1.00000, -0.18732, -0.46812,\
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1.00000, 1.85560, 0.00000)
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// ================================================================================ //
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// Functions: Balanced Color Conversion
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// ================================================================================ //
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float3 RGBtoYUV(float3 rgb, float3x3 m) {
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return mul(m, rgb) + float3(0, .5, .5);
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}
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float4 RGBAtoYUVA(float4 rgba, float3x3 m) {
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return float4(RGBtoYUV(rgba.rgb, m), rgba.a);
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}
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float3 YUVtoRGB(float3 yuv, float3x3 m) {
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return mul(m, yuv - float3(0, .5, .5));
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}
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float4 YUVAtoRGBA(float4 yuva, float3x3 m) {
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return float4(YUVtoRGB(yuva.rgb, m), yuva.a);
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}
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// ================================================================================ //
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// Function: Unbalanced Color Conversion
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// ================================================================================ //
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float3 RGBtoYUVf(float3 rgb, float3x3 m) {
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return mul(m, rgb);
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}
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float4 RGBAtoYUVAf(float4 rgba, float3x3 m) {
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return float4(RGBtoYUVf(rgba.rgb, m), rgba.a);
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}
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float3 YUVtoRGBf(float3 yuv, float3x3 m) {
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return mul(m, yuv);
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}
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float4 YUVAtoRGBAf(float4 yuva, float3x3 m) {
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return float4(YUVtoRGBf(yuva.rgb, m), yuva.a);
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}
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