Adding upstream version 115.7.0esr.upstream/115.7.0esrupstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 291 insertions, 0 deletions

diff --git a/media/libwebp/src/dsp/upsampling_mips_dsp_r2.c b/media/libwebp/src/dsp/upsampling_mips_dsp_r2.c
new file mode 100644
index 0000000000..10d499d771
--- /dev/null
+++ b/media/libwebp/src/dsp/upsampling_mips_dsp_r2.c
@@ -0,0 +1,291 @@
+// Copyright 2014 Google Inc. All Rights Reserved.
+//
+// Use of this source code is governed by a BSD-style license
+// that can be found in the COPYING 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.
+// -----------------------------------------------------------------------------
+//
+// YUV to RGB upsampling functions.
+//
+// Author(s): Branimir Vasic (branimir.vasic@imgtec.com)
+//            Djordje Pesut  (djordje.pesut@imgtec.com)
+
+#include "src/dsp/dsp.h"
+
+#if defined(WEBP_USE_MIPS_DSP_R2)
+
+#include <assert.h>
+#include "src/dsp/yuv.h"
+
+#define YUV_TO_RGB(Y, U, V, R, G, B) do {                                      \
+    const int t1 = MultHi(Y, 19077);                                           \
+    const int t2 = MultHi(V, 13320);                                           \
+    R = MultHi(V, 26149);                                                      \
+    G = MultHi(U, 6419);                                                       \
+    B = MultHi(U, 33050);                                                      \
+    R = t1 + R;                                                                \
+    G = t1 - G;                                                                \
+    B = t1 + B;                                                                \
+    R = R - 14234;                                                             \
+    G = G - t2 + 8708;                                                         \
+    B = B - 17685;                                                             \
+    __asm__ volatile (                                                         \
+      "shll_s.w         %[" #R "],      %[" #R "],        17         \n\t"     \
+      "shll_s.w         %[" #G "],      %[" #G "],        17         \n\t"     \
+      "shll_s.w         %[" #B "],      %[" #B "],        17         \n\t"     \
+      "precrqu_s.qb.ph  %[" #R "],      %[" #R "],        $zero      \n\t"     \
+      "precrqu_s.qb.ph  %[" #G "],      %[" #G "],        $zero      \n\t"     \
+      "precrqu_s.qb.ph  %[" #B "],      %[" #B "],        $zero      \n\t"     \
+      "srl              %[" #R "],      %[" #R "],        24         \n\t"     \
+      "srl              %[" #G "],      %[" #G "],        24         \n\t"     \
+      "srl              %[" #B "],      %[" #B "],        24         \n\t"     \
+      : [R]"+r"(R), [G]"+r"(G), [B]"+r"(B)                                     \
+      :                                                                        \
+    );                                                                         \
+  } while (0)
+
+#if !defined(WEBP_REDUCE_CSP)
+static WEBP_INLINE void YuvToRgb(int y, int u, int v, uint8_t* const rgb) {
+  int r, g, b;
+  YUV_TO_RGB(y, u, v, r, g, b);
+  rgb[0] = r;
+  rgb[1] = g;
+  rgb[2] = b;
+}
+static WEBP_INLINE void YuvToBgr(int y, int u, int v, uint8_t* const bgr) {
+  int r, g, b;
+  YUV_TO_RGB(y, u, v, r, g, b);
+  bgr[0] = b;
+  bgr[1] = g;
+  bgr[2] = r;
+}
+static WEBP_INLINE void YuvToRgb565(int y, int u, int v, uint8_t* const rgb) {
+  int r, g, b;
+  YUV_TO_RGB(y, u, v, r, g, b);
+  {
+    const int rg = (r & 0xf8) | (g >> 5);
+    const int gb = ((g << 3) & 0xe0) | (b >> 3);
+#if (WEBP_SWAP_16BIT_CSP == 1)
+    rgb[0] = gb;
+    rgb[1] = rg;
+#else
+    rgb[0] = rg;
+    rgb[1] = gb;
+#endif
+  }
+}
+static WEBP_INLINE void YuvToRgba4444(int y, int u, int v,
+                                      uint8_t* const argb) {
+  int r, g, b;
+  YUV_TO_RGB(y, u, v, r, g, b);
+  {
+    const int rg = (r & 0xf0) | (g >> 4);
+    const int ba = (b & 0xf0) | 0x0f;     // overwrite the lower 4 bits
+#if (WEBP_SWAP_16BIT_CSP == 1)
+    argb[0] = ba;
+    argb[1] = rg;
+#else
+    argb[0] = rg;
+    argb[1] = ba;
+#endif
+   }
+}
+#endif   // WEBP_REDUCE_CSP
+
+//-----------------------------------------------------------------------------
+// Alpha handling variants
+
+#if !defined(WEBP_REDUCE_CSP)
+static WEBP_INLINE void YuvToArgb(uint8_t y, uint8_t u, uint8_t v,
+                                  uint8_t* const argb) {
+  int r, g, b;
+  YUV_TO_RGB(y, u, v, r, g, b);
+  argb[0] = 0xff;
+  argb[1] = r;
+  argb[2] = g;
+  argb[3] = b;
+}
+#endif   // WEBP_REDUCE_CSP
+static WEBP_INLINE void YuvToBgra(uint8_t y, uint8_t u, uint8_t v,
+                                  uint8_t* const bgra) {
+  int r, g, b;
+  YUV_TO_RGB(y, u, v, r, g, b);
+  bgra[0] = b;
+  bgra[1] = g;
+  bgra[2] = r;
+  bgra[3] = 0xff;
+}
+static WEBP_INLINE void YuvToRgba(uint8_t y, uint8_t u, uint8_t v,
+                                  uint8_t* const rgba) {
+  int r, g, b;
+  YUV_TO_RGB(y, u, v, r, g, b);
+  rgba[0] = r;
+  rgba[1] = g;
+  rgba[2] = b;
+  rgba[3] = 0xff;
+}
+
+//------------------------------------------------------------------------------
+// Fancy upsampler
+
+#ifdef FANCY_UPSAMPLING
+
+// Given samples laid out in a square as:
+//  [a b]
+//  [c d]
+// we interpolate u/v as:
+//  ([9*a + 3*b + 3*c +   d    3*a + 9*b + 3*c +   d] + [8 8]) / 16
+//  ([3*a +   b + 9*c + 3*d      a + 3*b + 3*c + 9*d]   [8 8]) / 16
+
+// We process u and v together stashed into 32bit (16bit each).
+#define LOAD_UV(u, v) ((u) | ((v) << 16))
+
+#define UPSAMPLE_FUNC(FUNC_NAME, FUNC, XSTEP)                                  \
+static void FUNC_NAME(const uint8_t* top_y, const uint8_t* bottom_y,           \
+                      const uint8_t* top_u, const uint8_t* top_v,              \
+                      const uint8_t* cur_u, const uint8_t* cur_v,              \
+                      uint8_t* top_dst, uint8_t* bottom_dst, int len) {        \
+  int x;                                                                       \
+  const int last_pixel_pair = (len - 1) >> 1;                                  \
+  uint32_t tl_uv = LOAD_UV(top_u[0], top_v[0]);   /* top-left sample */        \
+  uint32_t l_uv  = LOAD_UV(cur_u[0], cur_v[0]);   /* left-sample */            \
+  assert(top_y != NULL);                                                       \
+  {                                                                            \
+    const uint32_t uv0 = (3 * tl_uv + l_uv + 0x00020002u) >> 2;                \
+    FUNC(top_y[0], uv0 & 0xff, (uv0 >> 16), top_dst);                          \
+  }                                                                            \
+  if (bottom_y != NULL) {                                                      \
+    const uint32_t uv0 = (3 * l_uv + tl_uv + 0x00020002u) >> 2;                \
+    FUNC(bottom_y[0], uv0 & 0xff, (uv0 >> 16), bottom_dst);                    \
+  }                                                                            \
+  for (x = 1; x <= last_pixel_pair; ++x) {                                     \
+    const uint32_t t_uv = LOAD_UV(top_u[x], top_v[x]);  /* top sample */       \
+    const uint32_t uv   = LOAD_UV(cur_u[x], cur_v[x]);  /* sample */           \
+    /* precompute invariant values associated with first and second diagonals*/\
+    const uint32_t avg = tl_uv + t_uv + l_uv + uv + 0x00080008u;               \
+    const uint32_t diag_12 = (avg + 2 * (t_uv + l_uv)) >> 3;                   \
+    const uint32_t diag_03 = (avg + 2 * (tl_uv + uv)) >> 3;                    \
+    {                                                                          \
+      const uint32_t uv0 = (diag_12 + tl_uv) >> 1;                             \
+      const uint32_t uv1 = (diag_03 + t_uv) >> 1;                              \
+      FUNC(top_y[2 * x - 1], uv0 & 0xff, (uv0 >> 16),                          \
+           top_dst + (2 * x - 1) * XSTEP);                                     \
+      FUNC(top_y[2 * x - 0], uv1 & 0xff, (uv1 >> 16),                          \
+           top_dst + (2 * x - 0) * XSTEP);                                     \
+    }                                                                          \
+    if (bottom_y != NULL) {                                                    \
+      const uint32_t uv0 = (diag_03 + l_uv) >> 1;                              \
+      const uint32_t uv1 = (diag_12 + uv) >> 1;                                \
+      FUNC(bottom_y[2 * x - 1], uv0 & 0xff, (uv0 >> 16),                       \
+           bottom_dst + (2 * x - 1) * XSTEP);                                  \
+      FUNC(bottom_y[2 * x + 0], uv1 & 0xff, (uv1 >> 16),                       \
+           bottom_dst + (2 * x + 0) * XSTEP);                                  \
+    }                                                                          \
+    tl_uv = t_uv;                                                              \
+    l_uv = uv;                                                                 \
+  }                                                                            \
+  if (!(len & 1)) {                                                            \
+    {                                                                          \
+      const uint32_t uv0 = (3 * tl_uv + l_uv + 0x00020002u) >> 2;              \
+      FUNC(top_y[len - 1], uv0 & 0xff, (uv0 >> 16),                            \
+           top_dst + (len - 1) * XSTEP);                                       \
+    }                                                                          \
+    if (bottom_y != NULL) {                                                    \
+      const uint32_t uv0 = (3 * l_uv + tl_uv + 0x00020002u) >> 2;              \
+      FUNC(bottom_y[len - 1], uv0 & 0xff, (uv0 >> 16),                         \
+           bottom_dst + (len - 1) * XSTEP);                                    \
+    }                                                                          \
+  }                                                                            \
+}
+
+// All variants implemented.
+UPSAMPLE_FUNC(UpsampleRgbaLinePair,     YuvToRgba,     4)
+UPSAMPLE_FUNC(UpsampleBgraLinePair,     YuvToBgra,     4)
+#if !defined(WEBP_REDUCE_CSP)
+UPSAMPLE_FUNC(UpsampleRgbLinePair,      YuvToRgb,      3)
+UPSAMPLE_FUNC(UpsampleBgrLinePair,      YuvToBgr,      3)
+UPSAMPLE_FUNC(UpsampleArgbLinePair,     YuvToArgb,     4)
+UPSAMPLE_FUNC(UpsampleRgba4444LinePair, YuvToRgba4444, 2)
+UPSAMPLE_FUNC(UpsampleRgb565LinePair,   YuvToRgb565,   2)
+#endif   // WEBP_REDUCE_CSP
+
+#undef LOAD_UV
+#undef UPSAMPLE_FUNC
+
+//------------------------------------------------------------------------------
+// Entry point
+
+extern void WebPInitUpsamplersMIPSdspR2(void);
+
+WEBP_TSAN_IGNORE_FUNCTION void WebPInitUpsamplersMIPSdspR2(void) {
+  WebPUpsamplers[MODE_RGBA]      = UpsampleRgbaLinePair;
+  WebPUpsamplers[MODE_BGRA]      = UpsampleBgraLinePair;
+  WebPUpsamplers[MODE_rgbA]      = UpsampleRgbaLinePair;
+  WebPUpsamplers[MODE_bgrA]      = UpsampleBgraLinePair;
+#if !defined(WEBP_REDUCE_CSP)
+  WebPUpsamplers[MODE_RGB]       = UpsampleRgbLinePair;
+  WebPUpsamplers[MODE_BGR]       = UpsampleBgrLinePair;
+  WebPUpsamplers[MODE_ARGB]      = UpsampleArgbLinePair;
+  WebPUpsamplers[MODE_RGBA_4444] = UpsampleRgba4444LinePair;
+  WebPUpsamplers[MODE_RGB_565]   = UpsampleRgb565LinePair;
+  WebPUpsamplers[MODE_Argb]      = UpsampleArgbLinePair;
+  WebPUpsamplers[MODE_rgbA_4444] = UpsampleRgba4444LinePair;
+#endif   // WEBP_REDUCE_CSP
+}
+
+#endif  // FANCY_UPSAMPLING
+
+//------------------------------------------------------------------------------
+// YUV444 converter
+
+#define YUV444_FUNC(FUNC_NAME, FUNC, XSTEP)                                    \
+static void FUNC_NAME(const uint8_t* y, const uint8_t* u, const uint8_t* v,    \
+                      uint8_t* dst, int len) {                                 \
+  int i;                                                                       \
+  for (i = 0; i < len; ++i) FUNC(y[i], u[i], v[i], &dst[i * XSTEP]);           \
+}
+
+YUV444_FUNC(Yuv444ToRgba,     YuvToRgba,     4)
+YUV444_FUNC(Yuv444ToBgra,     YuvToBgra,     4)
+#if !defined(WEBP_REDUCE_CSP)
+YUV444_FUNC(Yuv444ToRgb,      YuvToRgb,      3)
+YUV444_FUNC(Yuv444ToBgr,      YuvToBgr,      3)
+YUV444_FUNC(Yuv444ToArgb,     YuvToArgb,     4)
+YUV444_FUNC(Yuv444ToRgba4444, YuvToRgba4444, 2)
+YUV444_FUNC(Yuv444ToRgb565,   YuvToRgb565,   2)
+#endif   // WEBP_REDUCE_CSP
+
+#undef YUV444_FUNC
+
+//------------------------------------------------------------------------------
+// Entry point
+
+extern void WebPInitYUV444ConvertersMIPSdspR2(void);
+
+WEBP_TSAN_IGNORE_FUNCTION void WebPInitYUV444ConvertersMIPSdspR2(void) {
+  WebPYUV444Converters[MODE_RGBA]      = Yuv444ToRgba;
+  WebPYUV444Converters[MODE_BGRA]      = Yuv444ToBgra;
+  WebPYUV444Converters[MODE_rgbA]      = Yuv444ToRgba;
+  WebPYUV444Converters[MODE_bgrA]      = Yuv444ToBgra;
+#if !defined(WEBP_REDUCE_CSP)
+  WebPYUV444Converters[MODE_RGB]       = Yuv444ToRgb;
+  WebPYUV444Converters[MODE_BGR]       = Yuv444ToBgr;
+  WebPYUV444Converters[MODE_ARGB]      = Yuv444ToArgb;
+  WebPYUV444Converters[MODE_RGBA_4444] = Yuv444ToRgba4444;
+  WebPYUV444Converters[MODE_RGB_565]   = Yuv444ToRgb565;
+  WebPYUV444Converters[MODE_Argb]      = Yuv444ToArgb;
+  WebPYUV444Converters[MODE_rgbA_4444] = Yuv444ToRgba4444;
+#endif   // WEBP_REDUCE_CSP
+}
+
+#else  // !WEBP_USE_MIPS_DSP_R2
+
+WEBP_DSP_INIT_STUB(WebPInitYUV444ConvertersMIPSdspR2)
+
+#endif  // WEBP_USE_MIPS_DSP_R2
+
+#if !(defined(FANCY_UPSAMPLING) && defined(WEBP_USE_MIPS_DSP_R2))
+WEBP_DSP_INIT_STUB(WebPInitUpsamplersMIPSdspR2)
+#endif