ANGLE: upgrade to 2.1~07d49ef5350a

This version of ANGLE provides partial ES3 support, numerous
bug fixes, and several potentially useful vendor extensions.

All patches have been rebased. The following changes are noted:

0000-General-fixes-for-ANGLE-2.1.patch
  contains compile fixes for the new ANGLE

0004-Make-it-possible-to-link-ANGLE-statically-for-single.patch
  has incorporated patch 0015.

0007-Make-DX9-DX11-mutually-exclusive.patch
  has been removed as it was fixed upstream.

0007-Fix-ANGLE-build-with-Microsoft-Visual-Studio-14-CTP.patch
  has been moved up to fill the patch number gap.

0010-ANGLE-Enable-D3D11-for-feature-level-9-cards.patch
  now contains patch 0014 and 0017.

0013-ANGLE-Allow-for-universal-program-binaries.patch
  has been removed as it is no longer relevant.

0014-ANGLE-D3D11-Fix-internal-index-buffer-for-level-9-ha.patch
  has been merged with patch 0010.

0015-ANGLE-Don-t-export-DLLMain-functions-for-static-buil.patch
  has been merged with patch 0004.

0016-ANGLE-WinRT-Call-Trim-when-application-suspends.patch
  has been removed and will be replaced by a follow-up patch using a
  different technique.

0017-ANGLE-D3D11-Don-t-use-mipmaps-in-level-9-textures.patch
  has been merged with patch 0010.

0018-ANGLE-WinRT-Create-swap-chain-using-physical-resolut.patch
  has been removed and will be replaced by a follow-up patch extending
  the EGL_ANGLE_window_fixed_size extension.

0019-Fix-ANGLE-build-with-Microsoft-Visual-Studio-14-CTP.patch
  is now patch 0007.

[ChangeLog][Third-party libraries] ANGLE has been upgraded to
version 2.1, bringing partial support for OpenGL ES3 over
Direct3D 11, numerous bug fixes, and several new vendor extensions.

Change-Id: I6d95ce1480462d67228d83c1e5c74a1706b5b21c
Reviewed-by: Friedemann Kleint <Friedemann.Kleint@digia.com>

1 files changed, 309 insertions, 0 deletions

diff --git a/src/3rdparty/angle/src/libGLESv2/renderer/copyvertex.h b/src/3rdparty/angle/src/libGLESv2/renderer/copyvertex.h
new file mode 100644
index 0000000000..aca031701e
--- /dev/null
+++ b/src/3rdparty/angle/src/libGLESv2/renderer/copyvertex.h
@@ -0,0 +1,309 @@
+//
+// Copyright (c) 2013 The ANGLE 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.
+//
+
+// copyvertex.h: Defines vertex buffer copying and conversion functions
+
+#ifndef LIBGLESV2_RENDERER_COPYVERTEX_H_
+#define LIBGLESV2_RENDERER_COPYVERTEX_H_
+
+#include "common/mathutil.h"
+
+// 'widenDefaultValueBits' gives the default value for the alpha channel (4th component)
+//  the sentinel value 0 means we do not want to widen the input or add an alpha channel
+template <typename T, unsigned int componentCount, unsigned int widenDefaultValueBits>
+inline void copyVertexData(const void *input, size_t stride, size_t count, void *output)
+{
+    const unsigned int attribSize = sizeof(T) * componentCount;
+    const T defaultValue = gl::bitCast<T>(widenDefaultValueBits);
+    const bool widen = (widenDefaultValueBits != 0);
+
+    if (attribSize == stride && !widen)
+    {
+        memcpy(output, input, count * attribSize);
+    }
+    else
+    {
+        unsigned int outputStride = widen ? 4 : componentCount;
+
+        for (unsigned int i = 0; i < count; i++)
+        {
+            const T *offsetInput = reinterpret_cast<const T*>(reinterpret_cast<const char*>(input) + i * stride);
+            T *offsetOutput = reinterpret_cast<T*>(output) + i * outputStride;
+
+            for (unsigned int j = 0; j < componentCount; j++)
+            {
+                offsetOutput[j] = offsetInput[j];
+            }
+
+            if (widen)
+            {
+                offsetOutput[3] = defaultValue;
+            }
+        }
+    }
+}
+
+template <unsigned int componentCount>
+inline void copyFixedVertexData(const void* input, size_t stride, size_t count, void* output)
+{
+    static const float divisor = 1.0f / (1 << 16);
+
+    for (unsigned int i = 0; i < count; i++)
+    {
+        const GLfixed* offsetInput = reinterpret_cast<const GLfixed*>(reinterpret_cast<const char*>(input) + stride * i);
+        float* offsetOutput = reinterpret_cast<float*>(output) + i * componentCount;
+
+        for (unsigned int j = 0; j < componentCount; j++)
+        {
+            offsetOutput[j] = static_cast<float>(offsetInput[j]) * divisor;
+        }
+    }
+}
+
+template <typename T, unsigned int componentCount, bool normalized>
+inline void copyToFloatVertexData(const void* input, size_t stride, size_t count, void* output)
+{
+    typedef std::numeric_limits<T> NL;
+
+    for (unsigned int i = 0; i < count; i++)
+    {
+        const T *offsetInput = reinterpret_cast<const T*>(reinterpret_cast<const char*>(input) + stride * i);
+        float *offsetOutput = reinterpret_cast<float*>(output) + i * componentCount;
+
+        for (unsigned int j = 0; j < componentCount; j++)
+        {
+            if (normalized)
+            {
+                if (NL::is_signed)
+                {
+                    const float divisor = 1.0f / (2 * static_cast<float>(NL::max()) + 1);
+                    offsetOutput[j] = (2 * static_cast<float>(offsetInput[j]) + 1) * divisor;
+                }
+                else
+                {
+                    offsetOutput[j] =  static_cast<float>(offsetInput[j]) / NL::max();
+                }
+            }
+            else
+            {
+                offsetOutput[j] =  static_cast<float>(offsetInput[j]);
+            }
+        }
+    }
+}
+
+inline void copyPackedUnsignedVertexData(const void* input, size_t stride, size_t count, void* output)
+{
+    const unsigned int attribSize = 4;
+
+    if (attribSize == stride)
+    {
+        memcpy(output, input, count * attribSize);
+    }
+    else
+    {
+        for (unsigned int i = 0; i < count; i++)
+        {
+            const GLuint *offsetInput = reinterpret_cast<const GLuint*>(reinterpret_cast<const char*>(input) + (i * stride));
+            GLuint *offsetOutput = reinterpret_cast<GLuint*>(output) + (i * attribSize);
+
+            offsetOutput[i] = offsetInput[i];
+        }
+    }
+}
+
+template <bool isSigned, bool normalized, bool toFloat>
+static inline void copyPackedRGB(unsigned int data, void *output)
+{
+    const unsigned int rgbSignMask = 0x200;       // 1 set at the 9 bit
+    const unsigned int negativeMask = 0xFFFFFC00; // All bits from 10 to 31 set to 1
+
+    if (toFloat)
+    {
+        GLfloat *floatOutput = reinterpret_cast<GLfloat*>(output);
+        if (isSigned)
+        {
+            GLfloat finalValue = 0;
+            if (data & rgbSignMask)
+            {
+                int negativeNumber = data | negativeMask;
+                finalValue = static_cast<GLfloat>(negativeNumber);
+            }
+            else
+            {
+                finalValue = static_cast<GLfloat>(data);
+            }
+
+            if (normalized)
+            {
+                const int maxValue = 0x1FF;      // 1 set in bits 0 through 8
+                const int minValue = 0xFFFFFE01; // Inverse of maxValue
+
+                // A 10-bit two's complement number has the possibility of being minValue - 1 but
+                // OpenGL's normalization rules dictate that it should be clamped to minValue in this
+                // case.
+                if (finalValue < minValue)
+                {
+                    finalValue = minValue;
+                }
+
+                const int halfRange = (maxValue - minValue) >> 1;
+                *floatOutput = ((finalValue - minValue) / halfRange) - 1.0f;
+            }
+            else
+            {
+                *floatOutput = finalValue;
+            }
+        }
+        else
+        {
+            if (normalized)
+            {
+                const unsigned int maxValue = 0x3FF; // 1 set in bits 0 through 9
+                *floatOutput = static_cast<GLfloat>(data) / static_cast<GLfloat>(maxValue);
+            }
+            else
+            {
+                *floatOutput = static_cast<GLfloat>(data);
+            }
+        }
+    }
+    else
+    {
+        if (isSigned)
+        {
+            GLshort *intOutput = reinterpret_cast<GLshort*>(output);
+
+            if (data & rgbSignMask)
+            {
+                *intOutput = data | negativeMask;
+            }
+            else
+            {
+                *intOutput = data;
+            }
+        }
+        else
+        {
+            GLushort *uintOutput = reinterpret_cast<GLushort*>(output);
+            *uintOutput = data;
+        }
+    }
+}
+
+template <bool isSigned, bool normalized, bool toFloat>
+inline void copyPackedAlpha(unsigned int data, void *output)
+{
+    if (toFloat)
+    {
+        GLfloat *floatOutput = reinterpret_cast<GLfloat*>(output);
+        if (isSigned)
+        {
+            if (normalized)
+            {
+                switch (data)
+                {
+                  case 0x0: *floatOutput =  0.0f; break;
+                  case 0x1: *floatOutput =  1.0f; break;
+                  case 0x2: *floatOutput = -1.0f; break;
+                  case 0x3: *floatOutput = -1.0f; break;
+                  default: UNREACHABLE();
+                }
+            }
+            else
+            {
+                switch (data)
+                {
+                  case 0x0: *floatOutput =  0.0f; break;
+                  case 0x1: *floatOutput =  1.0f; break;
+                  case 0x2: *floatOutput = -2.0f; break;
+                  case 0x3: *floatOutput = -1.0f; break;
+                  default: UNREACHABLE();
+                }
+            }
+        }
+        else
+        {
+            if (normalized)
+            {
+                switch (data)
+                {
+                  case 0x0: *floatOutput = 0.0f / 3.0f; break;
+                  case 0x1: *floatOutput = 1.0f / 3.0f; break;
+                  case 0x2: *floatOutput = 2.0f / 3.0f; break;
+                  case 0x3: *floatOutput = 3.0f / 3.0f; break;
+                  default: UNREACHABLE();
+                }
+            }
+            else
+            {
+                switch (data)
+                {
+                  case 0x0: *floatOutput = 0.0f; break;
+                  case 0x1: *floatOutput = 1.0f; break;
+                  case 0x2: *floatOutput = 2.0f; break;
+                  case 0x3: *floatOutput = 3.0f; break;
+                  default: UNREACHABLE();
+                }
+            }
+        }
+    }
+    else
+    {
+        if (isSigned)
+        {
+            GLshort *intOutput = reinterpret_cast<GLshort*>(output);
+            switch (data)
+            {
+              case 0x0: *intOutput =  0; break;
+              case 0x1: *intOutput =  1; break;
+              case 0x2: *intOutput = -2; break;
+              case 0x3: *intOutput = -1; break;
+              default: UNREACHABLE();
+            }
+        }
+        else
+        {
+            GLushort *uintOutput = reinterpret_cast<GLushort*>(output);
+            switch (data)
+            {
+              case 0x0: *uintOutput = 0; break;
+              case 0x1: *uintOutput = 1; break;
+              case 0x2: *uintOutput = 2; break;
+              case 0x3: *uintOutput = 3; break;
+              default: UNREACHABLE();
+            }
+        }
+    }
+}
+
+template <bool isSigned, bool normalized, bool toFloat>
+inline void copyPackedVertexData(const void* input, size_t stride, size_t count, void* output)
+{
+    const unsigned int outputComponentSize = toFloat ? 4 : 2;
+    const unsigned int componentCount = 4;
+
+    const unsigned int rgbMask = 0x3FF; // 1 set in bits 0 through 9
+    const unsigned int redShift = 0;    // red is bits 0 through 9
+    const unsigned int greenShift = 10; // green is bits 10 through 19
+    const unsigned int blueShift = 20;  // blue is bits 20 through 29
+
+    const unsigned int alphaMask = 0x3; // 1 set in bits 0 and 1
+    const unsigned int alphaShift = 30; // Alpha is the 30 and 31 bits
+
+    for (unsigned int i = 0; i < count; i++)
+    {
+        GLuint packedValue = *reinterpret_cast<const GLuint*>(reinterpret_cast<const char*>(input) + (i * stride));
+        GLbyte *offsetOutput = reinterpret_cast<GLbyte*>(output) + (i * outputComponentSize * componentCount);
+
+        copyPackedRGB<isSigned, normalized, toFloat>(  (packedValue >> redShift) & rgbMask,     offsetOutput + (0 * outputComponentSize));
+        copyPackedRGB<isSigned, normalized, toFloat>(  (packedValue >> greenShift) & rgbMask,   offsetOutput + (1 * outputComponentSize));
+        copyPackedRGB<isSigned, normalized, toFloat>(  (packedValue >> blueShift) & rgbMask,    offsetOutput + (2 * outputComponentSize));
+        copyPackedAlpha<isSigned, normalized, toFloat>((packedValue >> alphaShift) & alphaMask, offsetOutput + (3* outputComponentSize));
+    }
+}
+
+#endif // LIBGLESV2_RENDERER_COPYVERTEX_H_