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