1f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org/************************************************************************** 2f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * 3f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * Copyright 2009 Younes Manton. 4f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * All Rights Reserved. 5f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * 6f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * Permission is hereby granted, free of charge, to any person obtaining a 7f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * copy of this software and associated documentation files (the 8f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * "Software"), to deal in the Software without restriction, including 9f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * without limitation the rights to use, copy, modify, merge, publish, 10f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * distribute, sub license, and/or sell copies of the Software, and to 11f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * permit persons to whom the Software is furnished to do so, subject to 12f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * the following conditions: 13f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * 14f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * The above copyright notice and this permission notice (including the 15f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * next paragraph) shall be included in all copies or substantial portions 16f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * of the Software. 17f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * 18f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS 19f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF 20f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. 21f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR 22f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, 23f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE 24f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. 25f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * 26f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org **************************************************************************/ 27f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 28f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org#include "util/u_math.h" 29f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org#include "util/u_debug.h" 30f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 31f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org#include "vl_csc.h" 32f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 33f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org/* 34f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * Color space conversion formulas 35f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * 36f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * To convert YCbCr to RGB, 37f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * vec4 ycbcr, rgb 38f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * mat44 csc 39f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * rgb = csc * ycbcr 40f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * 41f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * To calculate the color space conversion matrix csc with ProcAmp adjustments, 42f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * mat44 csc, cstd, procamp, bias 43f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * csc = cstd * (procamp * bias) 44f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * 45f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * Where cstd is a matrix corresponding to one of the color standards (BT.601, BT.709, etc) 46f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * adjusted for the kind of YCbCr -> RGB mapping wanted (1:1, full), 47f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * bias is a matrix corresponding to the kind of YCbCr -> RGB mapping wanted (1:1, full) 48f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * 49f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * To calculate procamp, 50f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * mat44 procamp, hue, saturation, brightness, contrast 51f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * procamp = brightness * (saturation * (contrast * hue)) 52f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * Alternatively, 53f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * procamp = saturation * (brightness * (contrast * hue)) 54f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * 55f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * contrast 56f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * [ c, 0, 0, 0] 57f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * [ 0, c, 0, 0] 58f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * [ 0, 0, c, 0] 59f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * [ 0, 0, 0, 1] 60f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * 61f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * brightness 62f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * [ 1, 0, 0, b] 63f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * [ 0, 1, 0, 0] 64f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * [ 0, 0, 1, 0] 65f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * [ 0, 0, 0, 1] 66f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * 67f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * saturation 68f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * [ 1, 0, 0, 0] 69f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * [ 0, s, 0, 0] 70f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * [ 0, 0, s, 0] 71f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * [ 0, 0, 0, 1] 72f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * 73f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * hue 74f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * [ 1, 0, 0, 0] 75f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * [ 0, cos(h), sin(h), 0] 76f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * [ 0, -sin(h), cos(h), 0] 77f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * [ 0, 0, 0, 1] 78f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * 79f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * procamp 80f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * [ c, 0, 0, b] 81f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * [ 0, c*s*cos(h), c*s*sin(h), 0] 82f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * [ 0, -c*s*sin(h), c*s*cos(h), 0] 83f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * [ 0, 0, 0, 1] 84f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * 85f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * bias 86f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * [ 1, 0, 0, ybias] 87f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * [ 0, 1, 0, cbbias] 88f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * [ 0, 0, 1, crbias] 89f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * [ 0, 0, 0, 1] 90f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * 91f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * csc 92f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * [ c*cstd[ 0], c*cstd[ 1]*s*cos(h) - c*cstd[ 2]*s*sin(h), c*cstd[ 2]*s*cos(h) + c*cstd[ 1]*s*sin(h), cstd[ 3] + cstd[ 0]*(b + c*ybias) + cstd[ 1]*(c*cbbias*s*cos(h) + c*crbias*s*sin(h)) + cstd[ 2]*(c*crbias*s*cos(h) - c*cbbias*s*sin(h))] 93f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * [ c*cstd[ 4], c*cstd[ 5]*s*cos(h) - c*cstd[ 6]*s*sin(h), c*cstd[ 6]*s*cos(h) + c*cstd[ 5]*s*sin(h), cstd[ 7] + cstd[ 4]*(b + c*ybias) + cstd[ 5]*(c*cbbias*s*cos(h) + c*crbias*s*sin(h)) + cstd[ 6]*(c*crbias*s*cos(h) - c*cbbias*s*sin(h))] 94f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * [ c*cstd[ 8], c*cstd[ 9]*s*cos(h) - c*cstd[10]*s*sin(h), c*cstd[10]*s*cos(h) + c*cstd[ 9]*s*sin(h), cstd[11] + cstd[ 8]*(b + c*ybias) + cstd[ 9]*(c*cbbias*s*cos(h) + c*crbias*s*sin(h)) + cstd[10]*(c*crbias*s*cos(h) - c*cbbias*s*sin(h))] 95f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * [ c*cstd[12], c*cstd[13]*s*cos(h) - c*cstd[14]*s*sin(h), c*cstd[14]*s*cos(h) + c*cstd[13]*s*sin(h), cstd[15] + cstd[12]*(b + c*ybias) + cstd[13]*(c*cbbias*s*cos(h) + c*crbias*s*sin(h)) + cstd[14]*(c*crbias*s*cos(h) - c*cbbias*s*sin(h))] 96f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org */ 97f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 98f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org/* 99f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * Converts ITU-R BT.601 YCbCr pixels to RGB pixels where: 100f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * Y is in [16,235], Cb and Cr are in [16,240] 101f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * R, G, and B are in [16,235] 102f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org */ 103f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.orgstatic const vl_csc_matrix bt_601 = 104f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org{ 105f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org { 1.0f, 0.0f, 1.371f, 0.0f, }, 106f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org { 1.0f, -0.336f, -0.698f, 0.0f, }, 107f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org { 1.0f, 1.732f, 0.0f, 0.0f, } 108f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org}; 109f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 110f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org/* 111f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * Converts ITU-R BT.601 YCbCr pixels to RGB pixels where: 112f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * Y is in [16,235], Cb and Cr are in [16,240] 113f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * R, G, and B are in [0,255] 114f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org */ 115f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.orgstatic const vl_csc_matrix bt_601_full = 116f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org{ 117f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org { 1.164f, 0.0f, 1.596f, 0.0f, }, 118f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org { 1.164f, -0.391f, -0.813f, 0.0f, }, 119f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org { 1.164f, 2.018f, 0.0f, 0.0f, } 120f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org}; 121f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 122f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org/* 123f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * Converts ITU-R BT.709 YCbCr pixels to RGB pixels where: 124f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * Y is in [16,235], Cb and Cr are in [16,240] 125f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * R, G, and B are in [16,235] 126f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org */ 127f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.orgstatic const vl_csc_matrix bt_709 = 128f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org{ 129f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org { 1.0f, 0.0f, 1.540f, 0.0f, }, 130f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org { 1.0f, -0.183f, -0.459f, 0.0f, }, 131f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org { 1.0f, 1.816f, 0.0f, 0.0f, } 132f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org}; 133f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 134f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org/* 135f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * Converts ITU-R BT.709 YCbCr pixels to RGB pixels where: 136f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * Y is in [16,235], Cb and Cr are in [16,240] 137f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org * R, G, and B are in [0,255] 138f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org */ 139f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.orgstatic const vl_csc_matrix bt_709_full = 140f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org{ 141f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org { 1.164f, 0.0f, 1.793f, 0.0f, }, 142f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org { 1.164f, -0.213f, -0.534f, 0.0f, }, 143f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org { 1.164f, 2.115f, 0.0f, 0.0f, } 144f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org}; 145f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 146f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.orgstatic const vl_csc_matrix smpte240m = 147f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org{ 148f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org { 1.0f, 0.0f, 1.582f, 0.0f, }, 149f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org { 1.0f, -0.228f, -0.478f, 0.0f, }, 150f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org { 1.0f, 1.833f, 0.0f, 0.0f, } 151f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org}; 152f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 153f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.orgstatic const vl_csc_matrix smpte240m_full = 154f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org{ 155f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org { 1.164f, 0.0f, 1.794f, 0.0f, }, 156f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org { 1.164f, -0.258f, -0.543f, 0.0f, }, 157f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org { 1.164f, 2.079f, 0.0f, 0.0f, } 158f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org}; 159f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 160f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.orgstatic const vl_csc_matrix identity = 161f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org{ 162f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org { 1.0f, 0.0f, 0.0f, 0.0f, }, 163f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org { 0.0f, 1.0f, 0.0f, 0.0f, }, 164f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org { 0.0f, 0.0f, 1.0f, 0.0f, } 165f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org}; 166f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 167f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.orgconst struct vl_procamp vl_default_procamp = { 168f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 0.0f, /* brightness */ 169f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 1.0f, /* contrast */ 170f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 1.0f, /* saturation */ 171f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 0.0f /* hue */ 172f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org}; 173f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 174f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.orgvoid vl_csc_get_matrix(enum VL_CSC_COLOR_STANDARD cs, 175f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org struct vl_procamp *procamp, 176f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org bool full_range, 177f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org vl_csc_matrix *matrix) 178f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org{ 179f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org float ybias = full_range ? -16.0f/255.0f : 0.0f; 180f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org float cbbias = -128.0f/255.0f; 181f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org float crbias = -128.0f/255.0f; 182f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 183f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org const struct vl_procamp *p = procamp ? procamp : &vl_default_procamp; 184f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org float c = p->contrast; 185f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org float s = p->saturation; 186f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org float b = p->brightness; 187f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org float h = p->hue; 188f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 189f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org const vl_csc_matrix *cstd; 190f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 191f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org assert(matrix); 192f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 193f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org switch (cs) { 194f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org case VL_CSC_COLOR_STANDARD_BT_601: 195f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org cstd = full_range ? &bt_601_full : &bt_601; 196f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org break; 197f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org case VL_CSC_COLOR_STANDARD_BT_709: 198f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org cstd = full_range ? &bt_709_full : &bt_709; 199f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org break; 200f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org case VL_CSC_COLOR_STANDARD_SMPTE_240M: 201f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org cstd = full_range ? &smpte240m_full : &smpte240m; 202f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org break; 203f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org case VL_CSC_COLOR_STANDARD_IDENTITY: 204f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org default: 205f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org assert(cs == VL_CSC_COLOR_STANDARD_IDENTITY); 206f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org memcpy(matrix, identity, sizeof(vl_csc_matrix)); 207f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org return; 208f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org } 209f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 210f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org (*matrix)[0][0] = c * (*cstd)[0][0]; 211f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org (*matrix)[0][1] = c * (*cstd)[0][1] * s * cosf(h) - c * (*cstd)[0][2] * s * sinf(h); 212f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org (*matrix)[0][2] = c * (*cstd)[0][2] * s * cosf(h) + c * (*cstd)[0][1] * s * sinf(h); 213f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org (*matrix)[0][3] = (*cstd)[0][3] + (*cstd)[0][0] * (b + c * ybias) + 214f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org (*cstd)[0][1] * (c * cbbias * s * cosf(h) + c * crbias * s * sinf(h)) + 215f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org (*cstd)[0][2] * (c * crbias * s * cosf(h) - c * cbbias * s * sinf(h)); 216f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 217f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org (*matrix)[1][0] = c * (*cstd)[1][0]; 218f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org (*matrix)[1][1] = c * (*cstd)[1][1] * s * cosf(h) - c * (*cstd)[1][2] * s * sinf(h); 219f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org (*matrix)[1][2] = c * (*cstd)[1][2] * s * cosf(h) + c * (*cstd)[1][1] * s * sinf(h); 220f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org (*matrix)[1][3] = (*cstd)[1][3] + (*cstd)[1][0] * (b + c * ybias) + 221f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org (*cstd)[1][1] * (c * cbbias * s * cosf(h) + c * crbias * s * sinf(h)) + 222f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org (*cstd)[1][2] * (c * crbias * s * cosf(h) - c * cbbias * s * sinf(h)); 223f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org 224f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org (*matrix)[2][0] = c * (*cstd)[2][0]; 225f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org (*matrix)[2][1] = c * (*cstd)[2][1] * s * cosf(h) - c * (*cstd)[2][2] * s * sinf(h); 226f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org (*matrix)[2][2] = c * (*cstd)[2][2] * s * cosf(h) + c * (*cstd)[2][1] * s * sinf(h); 227f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org (*matrix)[2][3] = (*cstd)[2][3] + (*cstd)[2][0] * (b + c * ybias) + 228f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org (*cstd)[2][1] * (c * cbbias * s * cosf(h) + c * crbias * s * sinf(h)) + 229f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org (*cstd)[2][2] * (c * crbias * s * cosf(h) - c * cbbias * s * sinf(h)); 230f2ba7591b1407a7ee9209f842c50696914dc2dedkbr@chromium.org} 231