365 lines
15 KiB
C
365 lines
15 KiB
C
/**************************************************************************
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*
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* Copyright 2010 VMware, Inc.
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* All Rights Reserved.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the
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* "Software"), to deal in the Software without restriction, including
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* without limitation the rights to use, copy, modify, merge, publish,
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* distribute, sub license, and/or sell copies of the Software, and to
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* permit persons to whom the Software is furnished to do so, subject to
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* the following conditions:
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
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* THE COPYRIGHT HOLDERS, AUTHORS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM,
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* DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
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* OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
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* USE OR OTHER DEALINGS IN THE SOFTWARE.
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*
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* The above copyright notice and this permission notice (including the
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* next paragraph) shall be included in all copies or substantial portions
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* of the Software.
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*
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**************************************************************************/
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/**
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* @file
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* YUV colorspace conversion.
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*
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* @author Brian Paul <brianp@vmware.com>
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* @author Michal Krol <michal@vmware.com>
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* @author Jose Fonseca <jfonseca@vmware.com>
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*
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* See also:
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* - http://www.fourcc.org/fccyvrgb.php
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* - http://msdn.microsoft.com/en-us/library/ms893078
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* - http://en.wikipedia.org/wiki/YUV
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*/
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#ifndef U_FORMAT_YUV_H_
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#define U_FORMAT_YUV_H_
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#include "pipe/p_compiler.h"
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#include "u_math.h"
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/*
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* TODO: Ensure we use consistent and right floating formulas, with enough
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* precision in the coefficients.
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*/
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static INLINE void
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util_format_rgb_float_to_yuv(float r, float g, float b,
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uint8_t *y, uint8_t *u, uint8_t *v)
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{
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const float _r = CLAMP(r, 0.0f, 1.0f);
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const float _g = CLAMP(g, 0.0f, 1.0f);
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const float _b = CLAMP(b, 0.0f, 1.0f);
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const float scale = 255.0f;
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const int _y = scale * ( (0.257f * _r) + (0.504f * _g) + (0.098f * _b));
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const int _u = scale * (-(0.148f * _r) - (0.291f * _g) + (0.439f * _b));
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const int _v = scale * ( (0.439f * _r) - (0.368f * _g) - (0.071f * _b));
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*y = _y + 16;
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*u = _u + 128;
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*v = _v + 128;
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}
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static INLINE void
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util_format_yuv_to_rgb_float(uint8_t y, uint8_t u, uint8_t v,
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float *r, float *g, float *b)
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{
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const int _y = y - 16;
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const int _u = u - 128;
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const int _v = v - 128;
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const float y_factor = 255.0f / 219.0f;
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const float scale = 1.0f / 255.0f;
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*r = scale * (y_factor * _y + 1.596f * _v);
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*g = scale * (y_factor * _y - 0.391f * _u - 0.813f * _v);
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*b = scale * (y_factor * _y + 2.018f * _u );
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}
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static INLINE void
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util_format_rgb_8unorm_to_yuv(uint8_t r, uint8_t g, uint8_t b,
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uint8_t *y, uint8_t *u, uint8_t *v)
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{
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*y = (( 66 * r + 129 * g + 25 * b + 128) >> 8) + 16;
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*u = (( -38 * r - 74 * g + 112 * b + 128) >> 8) + 128;
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*v = (( 112 * r - 94 * g - 18 * b + 128) >> 8) + 128;
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}
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static INLINE void
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util_format_yuv_to_rgb_8unorm(uint8_t y, uint8_t u, uint8_t v,
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uint8_t *r, uint8_t *g, uint8_t *b)
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{
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const int _y = y - 16;
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const int _u = u - 128;
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const int _v = v - 128;
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const int _r = (298 * _y + 409 * _v + 128) >> 8;
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const int _g = (298 * _y - 100 * _u - 208 * _v + 128) >> 8;
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const int _b = (298 * _y + 516 * _u + 128) >> 8;
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*r = CLAMP(_r, 0, 255);
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*g = CLAMP(_g, 0, 255);
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*b = CLAMP(_b, 0, 255);
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}
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void
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util_format_uyvy_unpack_rgba_float(float *dst_row, unsigned dst_stride,
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const uint8_t *src_row, unsigned src_stride,
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unsigned width, unsigned height);
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void
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util_format_uyvy_unpack_rgba_8unorm(uint8_t *dst_row, unsigned dst_stride,
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const uint8_t *src_row, unsigned src_stride,
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unsigned width, unsigned height);
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void
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util_format_uyvy_pack_rgba_float(uint8_t *dst_row, unsigned dst_stride,
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const float *src_row, unsigned src_stride,
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unsigned width, unsigned height);
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void
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util_format_uyvy_pack_rgba_8unorm(uint8_t *dst_row, unsigned dst_stride,
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const uint8_t *src_row, unsigned src_stride,
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unsigned width, unsigned height);
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void
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util_format_uyvy_fetch_rgba_float(float *dst, const uint8_t *src,
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unsigned i, unsigned j);
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void
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util_format_yuyv_unpack_rgba_float(float *dst_row, unsigned dst_stride,
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const uint8_t *src_row, unsigned src_stride,
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unsigned width, unsigned height);
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void
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util_format_yuyv_unpack_rgba_8unorm(uint8_t *dst_row, unsigned dst_stride,
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const uint8_t *src_row, unsigned src_stride,
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unsigned width, unsigned height);
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void
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util_format_yuyv_pack_rgba_float(uint8_t *dst_row, unsigned dst_stride,
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const float *src_row, unsigned src_stride,
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unsigned width, unsigned height);
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void
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util_format_yuyv_pack_rgba_8unorm(uint8_t *dst_row, unsigned dst_stride,
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const uint8_t *src_row, unsigned src_stride,
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unsigned width, unsigned height);
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void
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util_format_yuyv_fetch_rgba_float(float *dst, const uint8_t *src,
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unsigned i, unsigned j);
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/* XXX: Stubbed for now */
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void
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util_format_yv12_unpack_rgba_8unorm(uint8_t *dst_row, unsigned dst_stride,
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const uint8_t *src_row, unsigned src_stride,
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unsigned width, unsigned height);
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void
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util_format_yv12_pack_rgba_8unorm(uint8_t *dst_row, unsigned dst_stride,
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const uint8_t *src_row, unsigned src_stride,
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unsigned width, unsigned height);
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void
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util_format_yv12_unpack_rgba_float(float *dst_row, unsigned dst_stride,
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const uint8_t *src_row, unsigned src_stride,
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unsigned width, unsigned height);
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void
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util_format_yv12_pack_rgba_float(uint8_t *dst_row, unsigned dst_stride,
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const float *src_row, unsigned src_stride,
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unsigned width, unsigned height);
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void
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util_format_yv12_fetch_rgba_float(float *dst, const uint8_t *src,
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unsigned i, unsigned j);
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void
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util_format_yv16_unpack_rgba_8unorm(uint8_t *dst_row, unsigned dst_stride,
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const uint8_t *src_row, unsigned src_stride,
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unsigned width, unsigned height);
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void
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util_format_yv16_pack_rgba_8unorm(uint8_t *dst_row, unsigned dst_stride,
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const uint8_t *src_row, unsigned src_stride,
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unsigned width, unsigned height);
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void
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util_format_yv16_unpack_rgba_float(float *dst_row, unsigned dst_stride,
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const uint8_t *src_row, unsigned src_stride,
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unsigned width, unsigned height);
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void
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util_format_yv16_pack_rgba_float(uint8_t *dst_row, unsigned dst_stride,
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const float *src_row, unsigned src_stride,
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unsigned width, unsigned height);
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void
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util_format_yv16_fetch_rgba_float(float *dst, const uint8_t *src,
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unsigned i, unsigned j);
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void
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util_format_iyuv_unpack_rgba_8unorm(uint8_t *dst_row, unsigned dst_stride,
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const uint8_t *src_row, unsigned src_stride,
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unsigned width, unsigned height);
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void
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util_format_iyuv_pack_rgba_8unorm(uint8_t *dst_row, unsigned dst_stride,
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const uint8_t *src_row, unsigned src_stride,
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unsigned width, unsigned height);
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void
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util_format_iyuv_unpack_rgba_float(float *dst_row, unsigned dst_stride,
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const uint8_t *src_row, unsigned src_stride,
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unsigned width, unsigned height);
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void
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util_format_iyuv_pack_rgba_float(uint8_t *dst_row, unsigned dst_stride,
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const float *src_row, unsigned src_stride,
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unsigned width, unsigned height);
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void
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util_format_iyuv_fetch_rgba_float(float *dst, const uint8_t *src,
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unsigned i, unsigned j);
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void
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util_format_nv12_unpack_rgba_8unorm(uint8_t *dst_row, unsigned dst_stride,
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const uint8_t *src_row, unsigned src_stride,
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unsigned width, unsigned height);
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void
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util_format_nv12_pack_rgba_8unorm(uint8_t *dst_row, unsigned dst_stride,
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const uint8_t *src_row, unsigned src_stride,
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unsigned width, unsigned height);
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void
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util_format_nv12_unpack_rgba_float(float *dst_row, unsigned dst_stride,
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const uint8_t *src_row, unsigned src_stride,
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unsigned width, unsigned height);
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void
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util_format_nv12_pack_rgba_float(uint8_t *dst_row, unsigned dst_stride,
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const float *src_row, unsigned src_stride,
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unsigned width, unsigned height);
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void
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util_format_nv12_fetch_rgba_float(float *dst, const uint8_t *src,
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unsigned i, unsigned j);
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void
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util_format_nv21_unpack_rgba_8unorm(uint8_t *dst_row, unsigned dst_stride,
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const uint8_t *src_row, unsigned src_stride,
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unsigned width, unsigned height);
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void
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util_format_nv21_pack_rgba_8unorm(uint8_t *dst_row, unsigned dst_stride,
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const uint8_t *src_row, unsigned src_stride,
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unsigned width, unsigned height);
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void
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util_format_nv21_unpack_rgba_float(float *dst_row, unsigned dst_stride,
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const uint8_t *src_row, unsigned src_stride,
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unsigned width, unsigned height);
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void
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util_format_nv21_pack_rgba_float(uint8_t *dst_row, unsigned dst_stride,
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const float *src_row, unsigned src_stride,
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unsigned width, unsigned height);
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void
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util_format_nv21_fetch_rgba_float(float *dst, const uint8_t *src,
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unsigned i, unsigned j);
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void
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util_format_r8g8_b8g8_unorm_unpack_rgba_float(float *dst_row, unsigned dst_stride,
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const uint8_t *src_row, unsigned src_stride,
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unsigned width, unsigned height);
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void
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util_format_r8g8_b8g8_unorm_unpack_rgba_8unorm(uint8_t *dst_row, unsigned dst_stride,
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const uint8_t *src_row, unsigned src_stride,
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unsigned width, unsigned height);
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void
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util_format_r8g8_b8g8_unorm_pack_rgba_float(uint8_t *dst_row, unsigned dst_stride,
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const float *src_row, unsigned src_stride,
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unsigned width, unsigned height);
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void
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util_format_r8g8_b8g8_unorm_pack_rgba_8unorm(uint8_t *dst_row, unsigned dst_stride,
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const uint8_t *src_row, unsigned src_stride,
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unsigned width, unsigned height);
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void
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util_format_r8g8_b8g8_unorm_fetch_rgba_float(float *dst, const uint8_t *src,
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unsigned i, unsigned j);
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void
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util_format_g8r8_g8b8_unorm_unpack_rgba_float(float *dst_row, unsigned dst_stride,
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const uint8_t *src_row, unsigned src_stride,
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unsigned width, unsigned height);
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void
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util_format_g8r8_g8b8_unorm_unpack_rgba_8unorm(uint8_t *dst_row, unsigned dst_stride,
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const uint8_t *src_row, unsigned src_stride,
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unsigned width, unsigned height);
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void
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util_format_g8r8_g8b8_unorm_pack_rgba_float(uint8_t *dst_row, unsigned dst_stride,
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const float *src_row, unsigned src_stride,
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unsigned width, unsigned height);
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void
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util_format_g8r8_g8b8_unorm_pack_rgba_8unorm(uint8_t *dst_row, unsigned dst_stride,
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const uint8_t *src_row, unsigned src_stride,
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unsigned width, unsigned height);
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void
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util_format_g8r8_g8b8_unorm_fetch_rgba_float(float *dst, const uint8_t *src,
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unsigned i, unsigned j);
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void
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util_format_r8g8_r8b8_unorm_unpack_rgba_float(float *dst_row, unsigned dst_stride,
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const uint8_t *src_row, unsigned src_stride,
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unsigned width, unsigned height);
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void
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util_format_r8g8_r8b8_unorm_unpack_rgba_8unorm(uint8_t *dst_row, unsigned dst_stride,
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const uint8_t *src_row, unsigned src_stride,
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unsigned width, unsigned height);
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void
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util_format_r8g8_r8b8_unorm_pack_rgba_float(uint8_t *dst_row, unsigned dst_stride,
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const float *src_row, unsigned src_stride,
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unsigned width, unsigned height);
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void
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util_format_r8g8_r8b8_unorm_pack_rgba_8unorm(uint8_t *dst_row, unsigned dst_stride,
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const uint8_t *src_row, unsigned src_stride,
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unsigned width, unsigned height);
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void
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util_format_r8g8_r8b8_unorm_fetch_rgba_float(float *dst, const uint8_t *src,
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unsigned i, unsigned j);
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void
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util_format_g8r8_b8r8_unorm_unpack_rgba_float(float *dst_row, unsigned dst_stride,
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const uint8_t *src_row, unsigned src_stride,
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unsigned width, unsigned height);
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void
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util_format_g8r8_b8r8_unorm_unpack_rgba_8unorm(uint8_t *dst_row, unsigned dst_stride,
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const uint8_t *src_row, unsigned src_stride,
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unsigned width, unsigned height);
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void
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util_format_g8r8_b8r8_unorm_pack_rgba_float(uint8_t *dst_row, unsigned dst_stride,
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const float *src_row, unsigned src_stride,
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unsigned width, unsigned height);
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void
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util_format_g8r8_b8r8_unorm_pack_rgba_8unorm(uint8_t *dst_row, unsigned dst_stride,
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const uint8_t *src_row, unsigned src_stride,
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unsigned width, unsigned height);
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void
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util_format_g8r8_b8r8_unorm_fetch_rgba_float(float *dst, const uint8_t *src,
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unsigned i, unsigned j);
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#endif /* U_FORMAT_YUV_H_ */
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