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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-19 00:47:55 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-19 00:47:55 +0000
commit26a029d407be480d791972afb5975cf62c9360a6 (patch)
treef435a8308119effd964b339f76abb83a57c29483 /gfx/ycbcr/yuv_row.h
parentInitial commit. (diff)
downloadfirefox-26a029d407be480d791972afb5975cf62c9360a6.tar.xz
firefox-26a029d407be480d791972afb5975cf62c9360a6.zip
Adding upstream version 124.0.1.upstream/124.0.1
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'gfx/ycbcr/yuv_row.h')
-rw-r--r--gfx/ycbcr/yuv_row.h154
1 files changed, 154 insertions, 0 deletions
diff --git a/gfx/ycbcr/yuv_row.h b/gfx/ycbcr/yuv_row.h
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+// Copyright (c) 2010 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+// yuv_row internal functions to handle YUV conversion and scaling to RGB.
+// These functions are used from both yuv_convert.cc and yuv_scale.cc.
+
+// TODO(fbarchard): Write function that can handle rotation and scaling.
+
+#ifndef MEDIA_BASE_YUV_ROW_H_
+#define MEDIA_BASE_YUV_ROW_H_
+
+#include "chromium_types.h"
+
+extern "C" {
+// Can only do 1x.
+// This is the second fastest of the scalers.
+void FastConvertYUVToRGB32Row(const uint8_t* y_buf,
+ const uint8_t* u_buf,
+ const uint8_t* v_buf,
+ uint8_t* rgb_buf,
+ int width);
+
+void FastConvertYUVToRGB32Row_C(const uint8_t* y_buf,
+ const uint8_t* u_buf,
+ const uint8_t* v_buf,
+ uint8_t* rgb_buf,
+ int width,
+ unsigned int x_shift);
+
+void FastConvertYUVToRGB32Row(const uint8_t* y_buf,
+ const uint8_t* u_buf,
+ const uint8_t* v_buf,
+ uint8_t* rgb_buf,
+ int width);
+
+// Can do 1x, half size or any scale down by an integer amount.
+// Step can be negative (mirroring, rotate 180).
+// This is the third fastest of the scalers.
+// Only defined on Windows x86-32.
+void ConvertYUVToRGB32Row_SSE(const uint8_t* y_buf,
+ const uint8_t* u_buf,
+ const uint8_t* v_buf,
+ uint8_t* rgb_buf,
+ int width,
+ int step);
+
+// Rotate is like Convert, but applies different step to Y versus U and V.
+// This allows rotation by 90 or 270, by stepping by stride.
+// This is the forth fastest of the scalers.
+// Only defined on Windows x86-32.
+void RotateConvertYUVToRGB32Row_SSE(const uint8_t* y_buf,
+ const uint8_t* u_buf,
+ const uint8_t* v_buf,
+ uint8_t* rgb_buf,
+ int width,
+ int ystep,
+ int uvstep);
+
+// Doubler does 4 pixels at a time. Each pixel is replicated.
+// This is the fastest of the scalers.
+// Only defined on Windows x86-32.
+void DoubleYUVToRGB32Row_SSE(const uint8_t* y_buf,
+ const uint8_t* u_buf,
+ const uint8_t* v_buf,
+ uint8_t* rgb_buf,
+ int width);
+
+// Handles arbitrary scaling up or down.
+// Mirroring is supported, but not 90 or 270 degree rotation.
+// Chroma is under sampled every 2 pixels for performance.
+void ScaleYUVToRGB32Row(const uint8_t* y_buf,
+ const uint8_t* u_buf,
+ const uint8_t* v_buf,
+ uint8_t* rgb_buf,
+ int width,
+ int source_dx);
+
+void ScaleYUVToRGB32Row(const uint8_t* y_buf,
+ const uint8_t* u_buf,
+ const uint8_t* v_buf,
+ uint8_t* rgb_buf,
+ int width,
+ int source_dx);
+
+void ScaleYUVToRGB32Row_C(const uint8_t* y_buf,
+ const uint8_t* u_buf,
+ const uint8_t* v_buf,
+ uint8_t* rgb_buf,
+ int width,
+ int source_dx);
+
+// Handles arbitrary scaling up or down with bilinear filtering.
+// Mirroring is supported, but not 90 or 270 degree rotation.
+// Chroma is under sampled every 2 pixels for performance.
+// This is the slowest of the scalers.
+void LinearScaleYUVToRGB32Row(const uint8_t* y_buf,
+ const uint8_t* u_buf,
+ const uint8_t* v_buf,
+ uint8_t* rgb_buf,
+ int width,
+ int source_dx);
+
+void LinearScaleYUVToRGB32Row(const uint8_t* y_buf,
+ const uint8_t* u_buf,
+ const uint8_t* v_buf,
+ uint8_t* rgb_buf,
+ int width,
+ int source_dx);
+
+void LinearScaleYUVToRGB32Row_C(const uint8_t* y_buf,
+ const uint8_t* u_buf,
+ const uint8_t* v_buf,
+ uint8_t* rgb_buf,
+ int width,
+ int source_dx);
+
+
+#if defined(_MSC_VER) && !defined(__CLR_VER) && !defined(__clang__)
+#if defined(VISUALC_HAS_AVX2)
+#define SIMD_ALIGNED(var) __declspec(align(32)) var
+#else
+#define SIMD_ALIGNED(var) __declspec(align(16)) var
+#endif
+#elif defined(__GNUC__) || defined(__clang__)
+// Caveat GCC 4.2 to 4.7 have a known issue using vectors with const.
+#if defined(CLANG_HAS_AVX2) || defined(GCC_HAS_AVX2)
+#define SIMD_ALIGNED(var) var __attribute__((aligned(32)))
+#else
+#define SIMD_ALIGNED(var) var __attribute__((aligned(16)))
+#endif
+#else
+#define SIMD_ALIGNED(var) var
+#endif
+
+extern SIMD_ALIGNED(const int16_t kCoefficientsRgbY[768][4]);
+
+// x64 uses MMX2 (SSE) so emms is not required.
+// Warning C4799: function has no EMMS instruction.
+// EMMS() is slow and should be called by the calling function once per image.
+#if defined(ARCH_CPU_X86) && !defined(ARCH_CPU_X86_64)
+#if defined(_MSC_VER)
+#define EMMS() __asm emms
+#pragma warning(disable: 4799)
+#else
+#define EMMS() asm("emms")
+#endif
+#else
+#define EMMS() ((void)0)
+#endif
+
+} // extern "C"
+
+#endif // MEDIA_BASE_YUV_ROW_H_