/*
 *  Copyright 2012 The LibYuv Project Authors. All rights reserved.
 *
 *  Use of this source code is governed by a BSD-style license
 *  that can be found in the LICENSE file in the root of the source
 *  tree. An additional intellectual property rights grant can be found
 *  in the file PATENTS.  All contributing project authors may
 *  be found in the AUTHORS file in the root of the source tree.
 */

#include "libyuv/convert_from_argb.h"

#include "libyuv/basic_types.h"
#include "libyuv/cpu_id.h"
#include "libyuv/format_conversion.h"
#include "libyuv/planar_functions.h"
#include "libyuv/row.h"

#ifdef __cplusplus
namespace libyuv {
extern "C" {
#endif

// Convert ARGB to I400.
LIBYUV_API
int ARGBToI400(const uint8* src_argb, int src_stride_argb,
               uint8* dst_y, int dst_stride_y,
               int width, int height) {
  if (!src_argb || !dst_y || width <= 0 || height == 0) {
    return -1;
  }
  if (height < 0) {
    height = -height;
    src_argb = src_argb + (height - 1) * src_stride_argb;
    src_stride_argb = -src_stride_argb;
  }
  void (*ARGBToYRow)(const uint8* src_argb, uint8* dst_y, int pix) =
      ARGBToYRow_C;
#if defined(HAS_ARGBTOYROW_SSSE3)
  if (TestCpuFlag(kCpuHasSSSE3) &&
      IS_ALIGNED(width, 4) &&
      IS_ALIGNED(src_argb, 16) && IS_ALIGNED(src_stride_argb, 16) &&
      IS_ALIGNED(dst_y, 16) && IS_ALIGNED(dst_stride_y, 16)) {
    ARGBToYRow = ARGBToYRow_SSSE3;
  }
#endif

  for (int y = 0; y < height; ++y) {
    ARGBToYRow(src_argb, dst_y, width);
    src_argb += src_stride_argb;
    dst_y += dst_stride_y;
  }
  return 0;
}

// ARGB little endian (bgra in memory) to I422
// same as I420 except UV plane is full height
LIBYUV_API
int ARGBToI422(const uint8* src_argb, int src_stride_argb,
               uint8* dst_y, int dst_stride_y,
               uint8* dst_u, int dst_stride_u,
               uint8* dst_v, int dst_stride_v,
               int width, int height) {
  if (!src_argb || !dst_y || !dst_u || !dst_v || width <= 0 || height == 0) {
    return -1;
  }
  if (height < 0) {
    height = -height;
    src_argb = src_argb + (height - 1) * src_stride_argb;
    src_stride_argb = -src_stride_argb;
  }
  void (*ARGBToYRow)(const uint8* src_argb, uint8* dst_y, int pix) =
      ARGBToYRow_C;
  void (*ARGBToUVRow)(const uint8* src_argb0, int src_stride_argb,
                      uint8* dst_u, uint8* dst_v, int width) = ARGBToUVRow_C;
#if defined(HAS_ARGBTOYROW_SSSE3)
  if (TestCpuFlag(kCpuHasSSSE3)) {
    if (width > 16) {
      ARGBToUVRow = ARGBToUVRow_Any_SSSE3;
      ARGBToYRow = ARGBToYRow_Any_SSSE3;
    }
    if (IS_ALIGNED(width, 16)) {
      ARGBToUVRow = ARGBToUVRow_Unaligned_SSSE3;
      ARGBToYRow = ARGBToYRow_Unaligned_SSSE3;
      if (IS_ALIGNED(src_argb, 16) && IS_ALIGNED(src_stride_argb, 16)) {
        ARGBToUVRow = ARGBToUVRow_SSSE3;
        if (IS_ALIGNED(dst_y, 16) && IS_ALIGNED(dst_stride_y, 16)) {
          ARGBToYRow = ARGBToYRow_SSSE3;
        }
      }
    }
  }
#endif

  for (int y = 0; y < height; ++y) {
    ARGBToUVRow(src_argb, 0, dst_u, dst_v, width);
    ARGBToYRow(src_argb, dst_y, width);
    src_argb += src_stride_argb;
    dst_y += dst_stride_y;
    dst_u += dst_stride_u;
    dst_v += dst_stride_v;
  }
  return 0;
}
// Convert ARGB to RGBA.
LIBYUV_API
int ARGBToRGBA(const uint8* src_argb, int src_stride_argb,
               uint8* dst_rgba, int dst_stride_rgba,
               int width, int height) {
  if (!src_argb || !dst_rgba ||
      width <= 0 || height == 0) {
    return -1;
  }
  // Negative height means invert the image.
  if (height < 0) {
    height = -height;
    src_argb = src_argb + (height - 1) * src_stride_argb;
    src_stride_argb = -src_stride_argb;
  }
  void (*ARGBToRGBARow)(const uint8* src_argb, uint8* dst_rgba, int pix) =
      ARGBToRGBARow_C;
#if defined(HAS_ARGBTORGBAROW_SSSE3)
  if (TestCpuFlag(kCpuHasSSSE3) &&
      IS_ALIGNED(width, 4) &&
      IS_ALIGNED(src_argb, 16) && IS_ALIGNED(src_stride_argb, 16) &&
      IS_ALIGNED(dst_rgba, 16) && IS_ALIGNED(dst_stride_rgba, 16)) {
    ARGBToRGBARow = ARGBToRGBARow_SSSE3;
  }
#elif defined(HAS_ARGBTORGBAROW_NEON)
  if (TestCpuFlag(kCpuHasNEON) && IS_ALIGNED(width, 8)) {
    ARGBToRGBARow = ARGBToRGBARow_NEON;
  }
#endif

  for (int y = 0; y < height; ++y) {
    ARGBToRGBARow(src_argb, dst_rgba, width);
    src_argb += src_stride_argb;
    dst_rgba += dst_stride_rgba;
  }
  return 0;
}

// Convert ARGB To RGB24.
LIBYUV_API
int ARGBToRGB24(const uint8* src_argb, int src_stride_argb,
                uint8* dst_rgb24, int dst_stride_rgb24,
                int width, int height) {
  if (!src_argb || !dst_rgb24 || width <= 0 || height == 0) {
    return -1;
  }
  if (height < 0) {
    height = -height;
    src_argb = src_argb + (height - 1) * src_stride_argb;
    src_stride_argb = -src_stride_argb;
  }
  void (*ARGBToRGB24Row)(const uint8* src_argb, uint8* dst_rgb, int pix) =
      ARGBToRGB24Row_C;
#if defined(HAS_ARGBTORGB24ROW_SSSE3)
  if (TestCpuFlag(kCpuHasSSSE3) && width >= 16 &&
      IS_ALIGNED(src_argb, 16) && IS_ALIGNED(src_stride_argb, 16) &&
      IS_ALIGNED(dst_rgb24, 16) && IS_ALIGNED(dst_stride_rgb24, 16)) {
    ARGBToRGB24Row = ARGBToRGB24Row_Any_SSSE3;
    if (IS_ALIGNED(width, 16)) {
      ARGBToRGB24Row = ARGBToRGB24Row_SSSE3;
    }
  }
#elif defined(HAS_ARGBTORGB24ROW_NEON)
  if (TestCpuFlag(kCpuHasNEON) && width >= 8) {
    ARGBToRGB24Row = ARGBToRGB24Row_Any_NEON;
    if (IS_ALIGNED(width, 8)) {
      ARGBToRGB24Row = ARGBToRGB24Row_NEON;
    }
  }
#endif

  for (int y = 0; y < height; ++y) {
    ARGBToRGB24Row(src_argb, dst_rgb24, width);
    src_argb += src_stride_argb;
    dst_rgb24 += dst_stride_rgb24;
  }
  return 0;
}

// Convert ARGB To RAW.
LIBYUV_API
int ARGBToRAW(const uint8* src_argb, int src_stride_argb,
              uint8* dst_raw, int dst_stride_raw,
              int width, int height) {
  if (!src_argb || !dst_raw || width <= 0 || height == 0) {
    return -1;
  }
  if (height < 0) {
    height = -height;
    src_argb = src_argb + (height - 1) * src_stride_argb;
    src_stride_argb = -src_stride_argb;
  }
  void (*ARGBToRAWRow)(const uint8* src_argb, uint8* dst_rgb, int pix) =
      ARGBToRAWRow_C;
#if defined(HAS_ARGBTORAWROW_SSSE3)
  if (TestCpuFlag(kCpuHasSSSE3) && width >= 16 &&
      IS_ALIGNED(src_argb, 16) && IS_ALIGNED(src_stride_argb, 16) &&
      IS_ALIGNED(dst_raw, 16) && IS_ALIGNED(dst_stride_raw, 16)) {
    ARGBToRAWRow = ARGBToRAWRow_Any_SSSE3;
    if (IS_ALIGNED(width, 16)) {
      ARGBToRAWRow = ARGBToRAWRow_SSSE3;
    }
  }
#elif defined(HAS_ARGBTORAWROW_NEON)
  if (TestCpuFlag(kCpuHasNEON) && width >= 8) {
    ARGBToRAWRow = ARGBToRAWRow_Any_NEON;
    if (IS_ALIGNED(width, 8)) {
      ARGBToRAWRow = ARGBToRAWRow_NEON;
    }
  }
#endif

  for (int y = 0; y < height; ++y) {
    ARGBToRAWRow(src_argb, dst_raw, width);
    src_argb += src_stride_argb;
    dst_raw += dst_stride_raw;
  }
  return 0;
}

// Convert ARGB To RGB565.
LIBYUV_API
int ARGBToRGB565(const uint8* src_argb, int src_stride_argb,
                 uint8* dst_rgb565, int dst_stride_rgb565,
                 int width, int height) {
  if (!src_argb || !dst_rgb565 || width <= 0 || height == 0) {
    return -1;
  }
  if (height < 0) {
    height = -height;
    src_argb = src_argb + (height - 1) * src_stride_argb;
    src_stride_argb = -src_stride_argb;
  }
  void (*ARGBToRGB565Row)(const uint8* src_argb, uint8* dst_rgb, int pix) =
      ARGBToRGB565Row_C;
#if defined(HAS_ARGBTORGB565ROW_SSE2)
  if (TestCpuFlag(kCpuHasSSE2) && width >= 4 &&
      IS_ALIGNED(src_argb, 16) && IS_ALIGNED(src_stride_argb, 16)) {
    ARGBToRGB565Row = ARGBToRGB565Row_Any_SSE2;
    if (IS_ALIGNED(width, 4)) {
      ARGBToRGB565Row = ARGBToRGB565Row_SSE2;
    }
  }
#endif

  for (int y = 0; y < height; ++y) {
    ARGBToRGB565Row(src_argb, dst_rgb565, width);
    src_argb += src_stride_argb;
    dst_rgb565 += dst_stride_rgb565;
  }
  return 0;
}

// Convert ARGB To ARGB1555.
LIBYUV_API
int ARGBToARGB1555(const uint8* src_argb, int src_stride_argb,
                   uint8* dst_argb1555, int dst_stride_argb1555,
                   int width, int height) {
  if (!src_argb || !dst_argb1555 || width <= 0 || height == 0) {
    return -1;
  }
  if (height < 0) {
    height = -height;
    src_argb = src_argb + (height - 1) * src_stride_argb;
    src_stride_argb = -src_stride_argb;
  }
  void (*ARGBToARGB1555Row)(const uint8* src_argb, uint8* dst_rgb, int pix) =
      ARGBToARGB1555Row_C;
#if defined(HAS_ARGBTOARGB1555ROW_SSE2)
  if (TestCpuFlag(kCpuHasSSE2) && width >= 4 &&
      IS_ALIGNED(src_argb, 16) && IS_ALIGNED(src_stride_argb, 16)) {
    ARGBToARGB1555Row = ARGBToARGB1555Row_Any_SSE2;
    if (IS_ALIGNED(width, 4)) {
      ARGBToARGB1555Row = ARGBToARGB1555Row_SSE2;
    }
  }
#endif

  for (int y = 0; y < height; ++y) {
    ARGBToARGB1555Row(src_argb, dst_argb1555, width);
    src_argb += src_stride_argb;
    dst_argb1555 += dst_stride_argb1555;
  }
  return 0;
}

// Convert ARGB To ARGB4444.
LIBYUV_API
int ARGBToARGB4444(const uint8* src_argb, int src_stride_argb,
                   uint8* dst_argb4444, int dst_stride_argb4444,
                   int width, int height) {
  if (!src_argb || !dst_argb4444 || width <= 0 || height == 0) {
    return -1;
  }
  if (height < 0) {
    height = -height;
    src_argb = src_argb + (height - 1) * src_stride_argb;
    src_stride_argb = -src_stride_argb;
  }
  void (*ARGBToARGB4444Row)(const uint8* src_argb, uint8* dst_rgb, int pix) =
      ARGBToARGB4444Row_C;
#if defined(HAS_ARGBTOARGB4444ROW_SSE2)
  if (TestCpuFlag(kCpuHasSSE2) && width >= 4 &&
      IS_ALIGNED(src_argb, 16) && IS_ALIGNED(src_stride_argb, 16)) {
    ARGBToARGB4444Row = ARGBToARGB4444Row_Any_SSE2;
    if (IS_ALIGNED(width, 4)) {
      ARGBToARGB4444Row = ARGBToARGB4444Row_SSE2;
    }
  }
#elif defined(HAS_ARGBTOARGB4444ROW_NEON)
  if (TestCpuFlag(kCpuHasNEON) && width >= 8) {
    ARGBToARGB4444Row = ARGBToARGB4444Row_Any_NEON;
    if (IS_ALIGNED(width, 8)) {
      ARGBToARGB4444Row = ARGBToARGB4444Row_NEON;
    }
  }
#endif

  for (int y = 0; y < height; ++y) {
    ARGBToARGB4444Row(src_argb, dst_argb4444, width);
    src_argb += src_stride_argb;
    dst_argb4444 += dst_stride_argb4444;
  }
  return 0;
}

#ifdef __cplusplus
}  // extern "C"
}  // namespace libyuv
#endif