Add m-esr52 at 52.6.0

1 files changed, 2250 insertions, 0 deletions

diff --git a/gfx/angle/src/libANGLE/renderer/d3d/d3d11/Blit11.cpp b/gfx/angle/src/libANGLE/renderer/d3d/d3d11/Blit11.cpp
new file mode 100755
index 000000000..f8a0ac597
--- /dev/null
+++ b/gfx/angle/src/libANGLE/renderer/d3d/d3d11/Blit11.cpp
@@ -0,0 +1,2250 @@
+//
+// 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.
+//
+
+// Blit11.cpp: Texture copy utility class.
+
+#include "libANGLE/renderer/d3d/d3d11/Blit11.h"
+
+#include <float.h>
+
+#include "libANGLE/formatutils.h"
+#include "libANGLE/renderer/d3d/d3d11/Renderer11.h"
+#include "libANGLE/renderer/d3d/d3d11/RenderTarget11.h"
+#include "libANGLE/renderer/d3d/d3d11/renderer11_utils.h"
+#include "libANGLE/renderer/d3d/d3d11/formatutils11.h"
+#include "libANGLE/renderer/d3d/d3d11/texture_format_table.h"
+#include "third_party/trace_event/trace_event.h"
+
+namespace rx
+{
+
+namespace
+{
+
+// Include inline shaders in the anonymous namespace to make sure no symbols are exported
+#include "libANGLE/renderer/d3d/d3d11/shaders/compiled/passthrough2d11vs.h"
+#include "libANGLE/renderer/d3d/d3d11/shaders/compiled/passthroughdepth2d11ps.h"
+#include "libANGLE/renderer/d3d/d3d11/shaders/compiled/passthroughrgba2d11ps.h"
+#include "libANGLE/renderer/d3d/d3d11/shaders/compiled/passthroughrgbapremultiply2d11ps.h"
+#include "libANGLE/renderer/d3d/d3d11/shaders/compiled/passthroughrgbaunmultiply2d11ps.h"
+#include "libANGLE/renderer/d3d/d3d11/shaders/compiled/passthroughrgba2dui11ps.h"
+#include "libANGLE/renderer/d3d/d3d11/shaders/compiled/passthroughrgba2di11ps.h"
+#include "libANGLE/renderer/d3d/d3d11/shaders/compiled/passthroughrgb2d11ps.h"
+#include "libANGLE/renderer/d3d/d3d11/shaders/compiled/passthroughrgbpremultiply2d11ps.h"
+#include "libANGLE/renderer/d3d/d3d11/shaders/compiled/passthroughrgbunmultiply2d11ps.h"
+#include "libANGLE/renderer/d3d/d3d11/shaders/compiled/passthroughrgb2dui11ps.h"
+#include "libANGLE/renderer/d3d/d3d11/shaders/compiled/passthroughrgb2di11ps.h"
+#include "libANGLE/renderer/d3d/d3d11/shaders/compiled/passthroughrg2d11ps.h"
+#include "libANGLE/renderer/d3d/d3d11/shaders/compiled/passthroughrg2dui11ps.h"
+#include "libANGLE/renderer/d3d/d3d11/shaders/compiled/passthroughrg2di11ps.h"
+#include "libANGLE/renderer/d3d/d3d11/shaders/compiled/passthroughr2d11ps.h"
+#include "libANGLE/renderer/d3d/d3d11/shaders/compiled/passthroughr2dui11ps.h"
+#include "libANGLE/renderer/d3d/d3d11/shaders/compiled/passthroughr2di11ps.h"
+#include "libANGLE/renderer/d3d/d3d11/shaders/compiled/passthroughlum2d11ps.h"
+#include "libANGLE/renderer/d3d/d3d11/shaders/compiled/passthroughlumalpha2d11ps.h"
+
+#include "libANGLE/renderer/d3d/d3d11/shaders/compiled/passthrough3d11vs.h"
+#include "libANGLE/renderer/d3d/d3d11/shaders/compiled/passthrough3d11gs.h"
+#include "libANGLE/renderer/d3d/d3d11/shaders/compiled/passthroughrgba3d11ps.h"
+#include "libANGLE/renderer/d3d/d3d11/shaders/compiled/passthroughrgba3dui11ps.h"
+#include "libANGLE/renderer/d3d/d3d11/shaders/compiled/passthroughrgba3di11ps.h"
+#include "libANGLE/renderer/d3d/d3d11/shaders/compiled/passthroughrgb3d11ps.h"
+#include "libANGLE/renderer/d3d/d3d11/shaders/compiled/passthroughrgb3dui11ps.h"
+#include "libANGLE/renderer/d3d/d3d11/shaders/compiled/passthroughrgb3di11ps.h"
+#include "libANGLE/renderer/d3d/d3d11/shaders/compiled/passthroughrg3d11ps.h"
+#include "libANGLE/renderer/d3d/d3d11/shaders/compiled/passthroughrg3dui11ps.h"
+#include "libANGLE/renderer/d3d/d3d11/shaders/compiled/passthroughrg3di11ps.h"
+#include "libANGLE/renderer/d3d/d3d11/shaders/compiled/passthroughr3d11ps.h"
+#include "libANGLE/renderer/d3d/d3d11/shaders/compiled/passthroughr3dui11ps.h"
+#include "libANGLE/renderer/d3d/d3d11/shaders/compiled/passthroughr3di11ps.h"
+#include "libANGLE/renderer/d3d/d3d11/shaders/compiled/passthroughlum3d11ps.h"
+#include "libANGLE/renderer/d3d/d3d11/shaders/compiled/passthroughlumalpha3d11ps.h"
+
+#include "libANGLE/renderer/d3d/d3d11/shaders/compiled/resolvedepth11_ps.h"
+#include "libANGLE/renderer/d3d/d3d11/shaders/compiled/resolvedepthstencil11_ps.h"
+#include "libANGLE/renderer/d3d/d3d11/shaders/compiled/resolvedepthstencil11_vs.h"
+#include "libANGLE/renderer/d3d/d3d11/shaders/compiled/resolvestencil11_ps.h"
+
+#include "libANGLE/renderer/d3d/d3d11/shaders/compiled/swizzlef2dps.h"
+#include "libANGLE/renderer/d3d/d3d11/shaders/compiled/swizzlei2dps.h"
+#include "libANGLE/renderer/d3d/d3d11/shaders/compiled/swizzleui2dps.h"
+#include "libANGLE/renderer/d3d/d3d11/shaders/compiled/swizzlef3dps.h"
+#include "libANGLE/renderer/d3d/d3d11/shaders/compiled/swizzlei3dps.h"
+#include "libANGLE/renderer/d3d/d3d11/shaders/compiled/swizzleui3dps.h"
+#include "libANGLE/renderer/d3d/d3d11/shaders/compiled/swizzlef2darrayps.h"
+#include "libANGLE/renderer/d3d/d3d11/shaders/compiled/swizzlei2darrayps.h"
+#include "libANGLE/renderer/d3d/d3d11/shaders/compiled/swizzleui2darrayps.h"
+
+void StretchedBlitNearest_RowByRow(const gl::Box &sourceArea,
+                                   const gl::Box &destArea,
+                                   const gl::Rectangle &clippedDestArea,
+                                   const gl::Extents &sourceSize,
+                                   unsigned int sourceRowPitch,
+                                   unsigned int destRowPitch,
+                                   size_t pixelSize,
+                                   const uint8_t *sourceData,
+                                   uint8_t *destData)
+{
+    int srcHeightSubOne = (sourceArea.height - 1);
+    size_t copySize     = pixelSize * destArea.width;
+    size_t srcOffset    = sourceArea.x * pixelSize;
+    size_t destOffset   = destArea.x * pixelSize;
+
+    for (int y = clippedDestArea.y; y < clippedDestArea.y + clippedDestArea.height; y++)
+    {
+        float yPerc = static_cast<float>(y - destArea.y) / (destArea.height - 1);
+
+        // Interpolate using the original source rectangle to determine which row to sample from
+        // while clamping to the edges
+        unsigned int readRow = static_cast<unsigned int>(
+            gl::clamp(sourceArea.y + floor(yPerc * srcHeightSubOne + 0.5f), 0, srcHeightSubOne));
+        unsigned int writeRow = y;
+
+        const uint8_t *sourceRow = sourceData + readRow * sourceRowPitch + srcOffset;
+        uint8_t *destRow         = destData + writeRow * destRowPitch + destOffset;
+        memcpy(destRow, sourceRow, copySize);
+    }
+}
+
+void StretchedBlitNearest_PixelByPixel(const gl::Box &sourceArea,
+                                       const gl::Box &destArea,
+                                       const gl::Rectangle &clippedDestArea,
+                                       const gl::Extents &sourceSize,
+                                       unsigned int sourceRowPitch,
+                                       unsigned int destRowPitch,
+                                       ptrdiff_t readOffset,
+                                       ptrdiff_t writeOffset,
+                                       size_t copySize,
+                                       size_t srcPixelStride,
+                                       size_t destPixelStride,
+                                       const uint8_t *sourceData,
+                                       uint8_t *destData)
+{
+    auto xMax = clippedDestArea.x + clippedDestArea.width;
+    auto yMax = clippedDestArea.y + clippedDestArea.height;
+
+    for (int writeRow = clippedDestArea.y; writeRow < yMax; writeRow++)
+    {
+        // Interpolate using the original source rectangle to determine which row to sample from
+        // while clamping to the edges
+        float yPerc    = static_cast<float>(writeRow - destArea.y) / (destArea.height - 1);
+        float yRounded = floor(yPerc * (sourceArea.height - 1) + 0.5f);
+        unsigned int readRow =
+            static_cast<unsigned int>(gl::clamp(sourceArea.y + yRounded, 0, sourceSize.height - 1));
+
+        for (int writeColumn = clippedDestArea.x; writeColumn < xMax; writeColumn++)
+        {
+            // Interpolate the original source rectangle to determine which column to sample
+            // from while clamping to the edges
+            float xPerc    = static_cast<float>(writeColumn - destArea.x) / (destArea.width - 1);
+            float xRounded = floor(xPerc * (sourceArea.width - 1) + 0.5f);
+            unsigned int readColumn = static_cast<unsigned int>(
+                gl::clamp(sourceArea.x + xRounded, 0, sourceSize.height - 1));
+
+            const uint8_t *sourcePixel =
+                sourceData + readRow * sourceRowPitch + readColumn * srcPixelStride + readOffset;
+
+            uint8_t *destPixel =
+                destData + writeRow * destRowPitch + writeColumn * destPixelStride + writeOffset;
+
+            memcpy(destPixel, sourcePixel, copySize);
+        }
+    }
+}
+
+void StretchedBlitNearest(const gl::Box &sourceArea,
+                          const gl::Box &destArea,
+                          const gl::Rectangle &clipRect,
+                          const gl::Extents &sourceSize,
+                          unsigned int sourceRowPitch,
+                          unsigned int destRowPitch,
+                          ptrdiff_t readOffset,
+                          ptrdiff_t writeOffset,
+                          size_t copySize,
+                          size_t srcPixelStride,
+                          size_t destPixelStride,
+                          const uint8_t *sourceData,
+                          uint8_t *destData)
+{
+    gl::Rectangle clippedDestArea(destArea.x, destArea.y, destArea.width, destArea.height);
+    gl::ClipRectangle(clippedDestArea, clipRect, &clippedDestArea);
+
+    // Determine if entire rows can be copied at once instead of each individual pixel. There
+    // must be no out of bounds lookups, whole rows copies, and no scale.
+    if (sourceArea.width == clippedDestArea.width && sourceArea.x >= 0 &&
+        sourceArea.x + sourceArea.width <= sourceSize.width && copySize == srcPixelStride &&
+        copySize == destPixelStride)
+    {
+        StretchedBlitNearest_RowByRow(sourceArea, destArea, clippedDestArea, sourceSize,
+                                      sourceRowPitch, destRowPitch, srcPixelStride, sourceData,
+                                      destData);
+    }
+    else
+    {
+        StretchedBlitNearest_PixelByPixel(sourceArea, destArea, clippedDestArea, sourceSize,
+                                          sourceRowPitch, destRowPitch, readOffset, writeOffset,
+                                          copySize, srcPixelStride, destPixelStride, sourceData,
+                                          destData);
+    }
+}
+
+using DepthStencilLoader = void(const float *, uint8_t *);
+
+void LoadDepth16(const float *source, uint8_t *dest)
+{
+    uint32_t convertedDepth = gl::floatToNormalized<16, uint32_t>(source[0]);
+    memcpy(dest, &convertedDepth, 2u);
+}
+
+void LoadDepth24(const float *source, uint8_t *dest)
+{
+    uint32_t convertedDepth = gl::floatToNormalized<24, uint32_t>(source[0]);
+    memcpy(dest, &convertedDepth, 3u);
+}
+
+void LoadStencilHelper(const float *source, uint8_t *dest)
+{
+    uint32_t convertedStencil = gl::getShiftedData<8, 0>(static_cast<uint32_t>(source[1]));
+    memcpy(dest, &convertedStencil, 1u);
+}
+
+void LoadStencil8(const float *source, uint8_t *dest)
+{
+    // STENCIL_INDEX8 is implemented with D24S8, with the depth bits unused. Writes zero for safety.
+    float zero = 0.0f;
+    LoadDepth24(&zero, &dest[0]);
+    LoadStencilHelper(source, &dest[3]);
+}
+
+void LoadDepth24Stencil8(const float *source, uint8_t *dest)
+{
+    LoadDepth24(source, &dest[0]);
+    LoadStencilHelper(source, &dest[3]);
+}
+
+void LoadDepth32F(const float *source, uint8_t *dest)
+{
+    memcpy(dest, source, sizeof(float));
+}
+
+void LoadDepth32FStencil8(const float *source, uint8_t *dest)
+{
+    LoadDepth32F(source, &dest[0]);
+    LoadStencilHelper(source, &dest[4]);
+}
+
+template <DepthStencilLoader loader>
+void CopyDepthStencil(const gl::Box &sourceArea,
+                      const gl::Box &destArea,
+                      const gl::Rectangle &clippedDestArea,
+                      const gl::Extents &sourceSize,
+                      unsigned int sourceRowPitch,
+                      unsigned int destRowPitch,
+                      ptrdiff_t readOffset,
+                      ptrdiff_t writeOffset,
+                      size_t copySize,
+                      size_t srcPixelStride,
+                      size_t destPixelStride,
+                      const uint8_t *sourceData,
+                      uint8_t *destData)
+{
+    // No stretching or subregions are supported, only full blits.
+    ASSERT(sourceArea == destArea);
+    ASSERT(sourceSize.width == sourceArea.width && sourceSize.height == sourceArea.height &&
+           sourceSize.depth == 1);
+    ASSERT(clippedDestArea.width == sourceSize.width &&
+           clippedDestArea.height == sourceSize.height);
+    ASSERT(readOffset == 0 && writeOffset == 0);
+    ASSERT(destArea.x == 0 && destArea.y == 0);
+
+    for (int row = 0; row < destArea.height; ++row)
+    {
+        for (int column = 0; column < destArea.width; ++column)
+        {
+            ptrdiff_t offset         = row * sourceRowPitch + column * srcPixelStride;
+            const float *sourcePixel = reinterpret_cast<const float *>(sourceData + offset);
+
+            uint8_t *destPixel = destData + row * destRowPitch + column * destPixelStride;
+
+            loader(sourcePixel, destPixel);
+        }
+    }
+}
+
+void Depth32FStencil8ToDepth32F(const float *source, float *dest)
+{
+    *dest = *source;
+}
+
+void Depth24Stencil8ToDepth32F(const uint32_t *source, float *dest)
+{
+    uint32_t normDepth = source[0] & 0x00FFFFFF;
+    float floatDepth   = gl::normalizedToFloat<24>(normDepth);
+    *dest              = floatDepth;
+}
+
+void BlitD24S8ToD32F(const gl::Box &sourceArea,
+                     const gl::Box &destArea,
+                     const gl::Rectangle &clippedDestArea,
+                     const gl::Extents &sourceSize,
+                     unsigned int sourceRowPitch,
+                     unsigned int destRowPitch,
+                     ptrdiff_t readOffset,
+                     ptrdiff_t writeOffset,
+                     size_t copySize,
+                     size_t srcPixelStride,
+                     size_t destPixelStride,
+                     const uint8_t *sourceData,
+                     uint8_t *destData)
+{
+    // No stretching or subregions are supported, only full blits.
+    ASSERT(sourceArea == destArea);
+    ASSERT(sourceSize.width == sourceArea.width && sourceSize.height == sourceArea.height &&
+           sourceSize.depth == 1);
+    ASSERT(clippedDestArea.width == sourceSize.width &&
+           clippedDestArea.height == sourceSize.height);
+    ASSERT(readOffset == 0 && writeOffset == 0);
+    ASSERT(destArea.x == 0 && destArea.y == 0);
+
+    for (int row = 0; row < destArea.height; ++row)
+    {
+        for (int column = 0; column < destArea.width; ++column)
+        {
+            ptrdiff_t offset            = row * sourceRowPitch + column * srcPixelStride;
+            const uint32_t *sourcePixel = reinterpret_cast<const uint32_t *>(sourceData + offset);
+
+            float *destPixel =
+                reinterpret_cast<float *>(destData + row * destRowPitch + column * destPixelStride);
+
+            Depth24Stencil8ToDepth32F(sourcePixel, destPixel);
+        }
+    }
+}
+
+void BlitD32FS8ToD32F(const gl::Box &sourceArea,
+                      const gl::Box &destArea,
+                      const gl::Rectangle &clippedDestArea,
+                      const gl::Extents &sourceSize,
+                      unsigned int sourceRowPitch,
+                      unsigned int destRowPitch,
+                      ptrdiff_t readOffset,
+                      ptrdiff_t writeOffset,
+                      size_t copySize,
+                      size_t srcPixelStride,
+                      size_t destPixelStride,
+                      const uint8_t *sourceData,
+                      uint8_t *destData)
+{
+    // No stretching or subregions are supported, only full blits.
+    ASSERT(sourceArea == destArea);
+    ASSERT(sourceSize.width == sourceArea.width && sourceSize.height == sourceArea.height &&
+           sourceSize.depth == 1);
+    ASSERT(clippedDestArea.width == sourceSize.width &&
+           clippedDestArea.height == sourceSize.height);
+    ASSERT(readOffset == 0 && writeOffset == 0);
+    ASSERT(destArea.x == 0 && destArea.y == 0);
+
+    for (int row = 0; row < destArea.height; ++row)
+    {
+        for (int column = 0; column < destArea.width; ++column)
+        {
+            ptrdiff_t offset         = row * sourceRowPitch + column * srcPixelStride;
+            const float *sourcePixel = reinterpret_cast<const float *>(sourceData + offset);
+            float *destPixel =
+                reinterpret_cast<float *>(destData + row * destRowPitch + column * destPixelStride);
+
+            Depth32FStencil8ToDepth32F(sourcePixel, destPixel);
+        }
+    }
+}
+
+Blit11::BlitConvertFunction *GetCopyDepthStencilFunction(GLenum internalFormat)
+{
+    switch (internalFormat)
+    {
+        case GL_DEPTH_COMPONENT16:
+            return &CopyDepthStencil<LoadDepth16>;
+        case GL_DEPTH_COMPONENT24:
+            return &CopyDepthStencil<LoadDepth24>;
+        case GL_DEPTH_COMPONENT32F:
+            return &CopyDepthStencil<LoadDepth32F>;
+        case GL_STENCIL_INDEX8:
+            return &CopyDepthStencil<LoadStencil8>;
+        case GL_DEPTH24_STENCIL8:
+            return &CopyDepthStencil<LoadDepth24Stencil8>;
+        case GL_DEPTH32F_STENCIL8:
+            return &CopyDepthStencil<LoadDepth32FStencil8>;
+        default:
+            UNREACHABLE();
+            return nullptr;
+    }
+}
+
+inline void GenerateVertexCoords(const gl::Box &sourceArea,
+                                 const gl::Extents &sourceSize,
+                                 const gl::Box &destArea,
+                                 const gl::Extents &destSize,
+                                 float *x1,
+                                 float *y1,
+                                 float *x2,
+                                 float *y2,
+                                 float *u1,
+                                 float *v1,
+                                 float *u2,
+                                 float *v2)
+{
+    *x1 = (destArea.x / float(destSize.width)) * 2.0f - 1.0f;
+    *y1 = ((destSize.height - destArea.y - destArea.height) / float(destSize.height)) * 2.0f - 1.0f;
+    *x2 = ((destArea.x + destArea.width) / float(destSize.width)) * 2.0f - 1.0f;
+    *y2 = ((destSize.height - destArea.y) / float(destSize.height)) * 2.0f - 1.0f;
+
+    *u1 = sourceArea.x / float(sourceSize.width);
+    *v1 = sourceArea.y / float(sourceSize.height);
+    *u2 = (sourceArea.x + sourceArea.width) / float(sourceSize.width);
+    *v2 = (sourceArea.y + sourceArea.height) / float(sourceSize.height);
+}
+
+void Write2DVertices(const gl::Box &sourceArea,
+                     const gl::Extents &sourceSize,
+                     const gl::Box &destArea,
+                     const gl::Extents &destSize,
+                     void *outVertices,
+                     unsigned int *outStride,
+                     unsigned int *outVertexCount,
+                     D3D11_PRIMITIVE_TOPOLOGY *outTopology)
+{
+    float x1, y1, x2, y2, u1, v1, u2, v2;
+    GenerateVertexCoords(sourceArea, sourceSize, destArea, destSize, &x1, &y1, &x2, &y2, &u1, &v1,
+                         &u2, &v2);
+
+    d3d11::PositionTexCoordVertex *vertices =
+        static_cast<d3d11::PositionTexCoordVertex *>(outVertices);
+
+    d3d11::SetPositionTexCoordVertex(&vertices[0], x1, y1, u1, v2);
+    d3d11::SetPositionTexCoordVertex(&vertices[1], x1, y2, u1, v1);
+    d3d11::SetPositionTexCoordVertex(&vertices[2], x2, y1, u2, v2);
+    d3d11::SetPositionTexCoordVertex(&vertices[3], x2, y2, u2, v1);
+
+    *outStride      = sizeof(d3d11::PositionTexCoordVertex);
+    *outVertexCount = 4;
+    *outTopology    = D3D_PRIMITIVE_TOPOLOGY_TRIANGLESTRIP;
+}
+
+void Write3DVertices(const gl::Box &sourceArea,
+                     const gl::Extents &sourceSize,
+                     const gl::Box &destArea,
+                     const gl::Extents &destSize,
+                     void *outVertices,
+                     unsigned int *outStride,
+                     unsigned int *outVertexCount,
+                     D3D11_PRIMITIVE_TOPOLOGY *outTopology)
+{
+    ASSERT(sourceSize.depth > 0 && destSize.depth > 0);
+
+    float x1, y1, x2, y2, u1, v1, u2, v2;
+    GenerateVertexCoords(sourceArea, sourceSize, destArea, destSize, &x1, &y1, &x2, &y2, &u1, &v1,
+                         &u2, &v2);
+
+    d3d11::PositionLayerTexCoord3DVertex *vertices =
+        static_cast<d3d11::PositionLayerTexCoord3DVertex *>(outVertices);
+
+    for (int i = 0; i < destSize.depth; i++)
+    {
+        float readDepth = (float)i / std::max(destSize.depth - 1, 1);
+
+        d3d11::SetPositionLayerTexCoord3DVertex(&vertices[i * 6 + 0], x1, y1, i, u1, v2, readDepth);
+        d3d11::SetPositionLayerTexCoord3DVertex(&vertices[i * 6 + 1], x1, y2, i, u1, v1, readDepth);
+        d3d11::SetPositionLayerTexCoord3DVertex(&vertices[i * 6 + 2], x2, y1, i, u2, v2, readDepth);
+
+        d3d11::SetPositionLayerTexCoord3DVertex(&vertices[i * 6 + 3], x1, y2, i, u1, v1, readDepth);
+        d3d11::SetPositionLayerTexCoord3DVertex(&vertices[i * 6 + 4], x2, y2, i, u2, v1, readDepth);
+        d3d11::SetPositionLayerTexCoord3DVertex(&vertices[i * 6 + 5], x2, y1, i, u2, v2, readDepth);
+    }
+
+    *outStride      = sizeof(d3d11::PositionLayerTexCoord3DVertex);
+    *outVertexCount = destSize.depth * 6;
+    *outTopology    = D3D_PRIMITIVE_TOPOLOGY_TRIANGLELIST;
+}
+
+unsigned int GetSwizzleIndex(GLenum swizzle)
+{
+    unsigned int colorIndex = 0;
+
+    switch (swizzle)
+    {
+        case GL_RED:
+            colorIndex = 0;
+            break;
+        case GL_GREEN:
+            colorIndex = 1;
+            break;
+        case GL_BLUE:
+            colorIndex = 2;
+            break;
+        case GL_ALPHA:
+            colorIndex = 3;
+            break;
+        case GL_ZERO:
+            colorIndex = 4;
+            break;
+        case GL_ONE:
+            colorIndex = 5;
+            break;
+        default:
+            UNREACHABLE();
+            break;
+    }
+
+    return colorIndex;
+}
+
+D3D11_BLEND_DESC GetAlphaMaskBlendStateDesc()
+{
+    D3D11_BLEND_DESC desc;
+    memset(&desc, 0, sizeof(desc));
+    desc.RenderTarget[0].BlendEnable           = TRUE;
+    desc.RenderTarget[0].SrcBlend              = D3D11_BLEND_ONE;
+    desc.RenderTarget[0].DestBlend             = D3D11_BLEND_ZERO;
+    desc.RenderTarget[0].BlendOp               = D3D11_BLEND_OP_ADD;
+    desc.RenderTarget[0].SrcBlendAlpha         = D3D11_BLEND_ZERO;
+    desc.RenderTarget[0].DestBlendAlpha        = D3D11_BLEND_ZERO;
+    desc.RenderTarget[0].BlendOpAlpha          = D3D11_BLEND_OP_ADD;
+    desc.RenderTarget[0].RenderTargetWriteMask = D3D11_COLOR_WRITE_ENABLE_RED |
+                                                 D3D11_COLOR_WRITE_ENABLE_GREEN |
+                                                 D3D11_COLOR_WRITE_ENABLE_BLUE;
+    return desc;
+}
+
+D3D11_INPUT_ELEMENT_DESC quad2DLayout[] = {
+    {"POSITION", 0, DXGI_FORMAT_R32G32_FLOAT, 0, 0, D3D11_INPUT_PER_VERTEX_DATA, 0},
+    {"TEXCOORD", 0, DXGI_FORMAT_R32G32_FLOAT, 0, 8, D3D11_INPUT_PER_VERTEX_DATA, 0},
+};
+
+D3D11_INPUT_ELEMENT_DESC quad3DLayout[] = {
+    {"POSITION", 0, DXGI_FORMAT_R32G32_FLOAT, 0, 0, D3D11_INPUT_PER_VERTEX_DATA, 0},
+    {"LAYER", 0, DXGI_FORMAT_R32_UINT, 0, 8, D3D11_INPUT_PER_VERTEX_DATA, 0},
+    {"TEXCOORD", 0, DXGI_FORMAT_R32G32B32_FLOAT, 0, 12, D3D11_INPUT_PER_VERTEX_DATA, 0},
+};
+
+DXGI_FORMAT GetStencilSRVFormat(const d3d11::Format &formatSet)
+{
+    switch (formatSet.texFormat)
+    {
+        case DXGI_FORMAT_R32G8X24_TYPELESS:
+            return DXGI_FORMAT_X32_TYPELESS_G8X24_UINT;
+        case DXGI_FORMAT_R24G8_TYPELESS:
+            return DXGI_FORMAT_X24_TYPELESS_G8_UINT;
+        default:
+            UNREACHABLE();
+            return DXGI_FORMAT_UNKNOWN;
+    }
+}
+
+}  // namespace
+
+Blit11::Blit11(Renderer11 *renderer)
+    : mRenderer(renderer),
+      mResourcesInitialized(false),
+      mVertexBuffer(nullptr),
+      mPointSampler(nullptr),
+      mLinearSampler(nullptr),
+      mScissorEnabledRasterizerState(nullptr),
+      mScissorDisabledRasterizerState(nullptr),
+      mDepthStencilState(nullptr),
+      mQuad2DIL(quad2DLayout,
+                ArraySize(quad2DLayout),
+                g_VS_Passthrough2D,
+                ArraySize(g_VS_Passthrough2D),
+                "Blit11 2D input layout"),
+      mQuad2DVS(g_VS_Passthrough2D, ArraySize(g_VS_Passthrough2D), "Blit11 2D vertex shader"),
+      mDepthPS(g_PS_PassthroughDepth2D,
+               ArraySize(g_PS_PassthroughDepth2D),
+               "Blit11 2D depth pixel shader"),
+      mQuad3DIL(quad3DLayout,
+                ArraySize(quad3DLayout),
+                g_VS_Passthrough3D,
+                ArraySize(g_VS_Passthrough3D),
+                "Blit11 3D input layout"),
+      mQuad3DVS(g_VS_Passthrough3D, ArraySize(g_VS_Passthrough3D), "Blit11 3D vertex shader"),
+      mQuad3DGS(g_GS_Passthrough3D, ArraySize(g_GS_Passthrough3D), "Blit11 3D geometry shader"),
+      mAlphaMaskBlendState(GetAlphaMaskBlendStateDesc(), "Blit11 Alpha Mask Blend"),
+      mSwizzleCB(nullptr),
+      mResolveDepthStencilVS(g_VS_ResolveDepthStencil,
+                             ArraySize(g_VS_ResolveDepthStencil),
+                             "Blit11::mResolveDepthStencilVS"),
+      mResolveDepthPS(g_PS_ResolveDepth, ArraySize(g_PS_ResolveDepth), "Blit11::mResolveDepthPS"),
+      mResolveDepthStencilPS(g_PS_ResolveDepthStencil,
+                             ArraySize(g_PS_ResolveDepthStencil),
+                             "Blit11::mResolveDepthStencilPS"),
+      mResolveStencilPS(g_PS_ResolveStencil,
+                        ArraySize(g_PS_ResolveStencil),
+                        "Blit11::mResolveStencilPS"),
+      mStencilSRV(nullptr),
+      mResolvedDepthStencilRTView(nullptr)
+{
+}
+
+Blit11::~Blit11()
+{
+    freeResources();
+
+    mQuad2DIL.release();
+    mQuad2DVS.release();
+    mDepthPS.release();
+
+    mQuad3DIL.release();
+    mQuad3DVS.release();
+    mQuad3DGS.release();
+
+    clearShaderMap();
+    releaseResolveDepthStencilResources();
+}
+
+gl::Error Blit11::initResources()
+{
+    if (mResourcesInitialized)
+    {
+        return gl::Error(GL_NO_ERROR);
+    }
+
+    TRACE_EVENT0("gpu.angle", "Blit11::initResources");
+
+    HRESULT result;
+    ID3D11Device *device = mRenderer->getDevice();
+
+    D3D11_BUFFER_DESC vbDesc;
+    vbDesc.ByteWidth =
+        static_cast<unsigned int>(std::max(sizeof(d3d11::PositionLayerTexCoord3DVertex),
+                                           sizeof(d3d11::PositionTexCoordVertex)) *
+                                  6 * mRenderer->getNativeCaps().max3DTextureSize);
+    vbDesc.Usage               = D3D11_USAGE_DYNAMIC;
+    vbDesc.BindFlags           = D3D11_BIND_VERTEX_BUFFER;
+    vbDesc.CPUAccessFlags      = D3D11_CPU_ACCESS_WRITE;
+    vbDesc.MiscFlags           = 0;
+    vbDesc.StructureByteStride = 0;
+
+    result = device->CreateBuffer(&vbDesc, nullptr, &mVertexBuffer);
+    ASSERT(SUCCEEDED(result));
+    if (FAILED(result))
+    {
+        freeResources();
+        return gl::Error(GL_OUT_OF_MEMORY, "Failed to create blit vertex buffer, HRESULT: 0x%X",
+                         result);
+    }
+    d3d11::SetDebugName(mVertexBuffer, "Blit11 vertex buffer");
+
+    D3D11_SAMPLER_DESC pointSamplerDesc;
+    pointSamplerDesc.Filter         = D3D11_FILTER_MIN_MAG_POINT_MIP_LINEAR;
+    pointSamplerDesc.AddressU       = D3D11_TEXTURE_ADDRESS_CLAMP;
+    pointSamplerDesc.AddressV       = D3D11_TEXTURE_ADDRESS_CLAMP;
+    pointSamplerDesc.AddressW       = D3D11_TEXTURE_ADDRESS_CLAMP;
+    pointSamplerDesc.MipLODBias     = 0.0f;
+    pointSamplerDesc.MaxAnisotropy  = 0;
+    pointSamplerDesc.ComparisonFunc = D3D11_COMPARISON_NEVER;
+    pointSamplerDesc.BorderColor[0] = 0.0f;
+    pointSamplerDesc.BorderColor[1] = 0.0f;
+    pointSamplerDesc.BorderColor[2] = 0.0f;
+    pointSamplerDesc.BorderColor[3] = 0.0f;
+    pointSamplerDesc.MinLOD         = 0.0f;
+    pointSamplerDesc.MaxLOD         = FLT_MAX;
+
+    result = device->CreateSamplerState(&pointSamplerDesc, &mPointSampler);
+    ASSERT(SUCCEEDED(result));
+    if (FAILED(result))
+    {
+        freeResources();
+        return gl::Error(GL_OUT_OF_MEMORY,
+                         "Failed to create blit point sampler state, HRESULT: 0x%X", result);
+    }
+    d3d11::SetDebugName(mPointSampler, "Blit11 point sampler");
+
+    D3D11_SAMPLER_DESC linearSamplerDesc;
+    linearSamplerDesc.Filter         = D3D11_FILTER_MIN_MAG_MIP_LINEAR;
+    linearSamplerDesc.AddressU       = D3D11_TEXTURE_ADDRESS_CLAMP;
+    linearSamplerDesc.AddressV       = D3D11_TEXTURE_ADDRESS_CLAMP;
+    linearSamplerDesc.AddressW       = D3D11_TEXTURE_ADDRESS_CLAMP;
+    linearSamplerDesc.MipLODBias     = 0.0f;
+    linearSamplerDesc.MaxAnisotropy  = 0;
+    linearSamplerDesc.ComparisonFunc = D3D11_COMPARISON_NEVER;
+    linearSamplerDesc.BorderColor[0] = 0.0f;
+    linearSamplerDesc.BorderColor[1] = 0.0f;
+    linearSamplerDesc.BorderColor[2] = 0.0f;
+    linearSamplerDesc.BorderColor[3] = 0.0f;
+    linearSamplerDesc.MinLOD         = 0.0f;
+    linearSamplerDesc.MaxLOD         = FLT_MAX;
+
+    result = device->CreateSamplerState(&linearSamplerDesc, &mLinearSampler);
+    ASSERT(SUCCEEDED(result));
+    if (FAILED(result))
+    {
+        freeResources();
+        return gl::Error(GL_OUT_OF_MEMORY,
+                         "Failed to create blit linear sampler state, HRESULT: 0x%X", result);
+    }
+    d3d11::SetDebugName(mLinearSampler, "Blit11 linear sampler");
+
+    // Use a rasterizer state that will not cull so that inverted quads will not be culled
+    D3D11_RASTERIZER_DESC rasterDesc;
+    rasterDesc.FillMode              = D3D11_FILL_SOLID;
+    rasterDesc.CullMode              = D3D11_CULL_NONE;
+    rasterDesc.FrontCounterClockwise = FALSE;
+    rasterDesc.DepthBias             = 0;
+    rasterDesc.SlopeScaledDepthBias  = 0.0f;
+    rasterDesc.DepthBiasClamp        = 0.0f;
+    rasterDesc.DepthClipEnable       = TRUE;
+    rasterDesc.MultisampleEnable     = FALSE;
+    rasterDesc.AntialiasedLineEnable = FALSE;
+
+    rasterDesc.ScissorEnable = TRUE;
+    result = device->CreateRasterizerState(&rasterDesc, &mScissorEnabledRasterizerState);
+    ASSERT(SUCCEEDED(result));
+    if (FAILED(result))
+    {
+        freeResources();
+        return gl::Error(GL_OUT_OF_MEMORY,
+                         "Failed to create blit scissoring rasterizer state, HRESULT: 0x%X",
+                         result);
+    }
+    d3d11::SetDebugName(mScissorEnabledRasterizerState, "Blit11 scissoring rasterizer state");
+
+    rasterDesc.ScissorEnable = FALSE;
+    result = device->CreateRasterizerState(&rasterDesc, &mScissorDisabledRasterizerState);
+    ASSERT(SUCCEEDED(result));
+    if (FAILED(result))
+    {
+        freeResources();
+        return gl::Error(GL_OUT_OF_MEMORY,
+                         "Failed to create blit no scissoring rasterizer state, HRESULT: 0x%X",
+                         result);
+    }
+    d3d11::SetDebugName(mScissorDisabledRasterizerState, "Blit11 no scissoring rasterizer state");
+
+    D3D11_DEPTH_STENCIL_DESC depthStencilDesc;
+    depthStencilDesc.DepthEnable                  = true;
+    depthStencilDesc.DepthWriteMask               = D3D11_DEPTH_WRITE_MASK_ALL;
+    depthStencilDesc.DepthFunc                    = D3D11_COMPARISON_ALWAYS;
+    depthStencilDesc.StencilEnable                = FALSE;
+    depthStencilDesc.StencilReadMask              = D3D11_DEFAULT_STENCIL_READ_MASK;
+    depthStencilDesc.StencilWriteMask             = D3D11_DEFAULT_STENCIL_WRITE_MASK;
+    depthStencilDesc.FrontFace.StencilFailOp      = D3D11_STENCIL_OP_KEEP;
+    depthStencilDesc.FrontFace.StencilDepthFailOp = D3D11_STENCIL_OP_KEEP;
+    depthStencilDesc.FrontFace.StencilPassOp      = D3D11_STENCIL_OP_KEEP;
+    depthStencilDesc.FrontFace.StencilFunc        = D3D11_COMPARISON_ALWAYS;
+    depthStencilDesc.BackFace.StencilFailOp       = D3D11_STENCIL_OP_KEEP;
+    depthStencilDesc.BackFace.StencilDepthFailOp  = D3D11_STENCIL_OP_KEEP;
+    depthStencilDesc.BackFace.StencilPassOp       = D3D11_STENCIL_OP_KEEP;
+    depthStencilDesc.BackFace.StencilFunc         = D3D11_COMPARISON_ALWAYS;
+
+    result = device->CreateDepthStencilState(&depthStencilDesc, &mDepthStencilState);
+    ASSERT(SUCCEEDED(result));
+    if (FAILED(result))
+    {
+        freeResources();
+        return gl::Error(GL_OUT_OF_MEMORY,
+                         "Failed to create blit depth stencil state, HRESULT: 0x%X", result);
+    }
+    d3d11::SetDebugName(mDepthStencilState, "Blit11 depth stencil state");
+
+    D3D11_BUFFER_DESC swizzleBufferDesc;
+    swizzleBufferDesc.ByteWidth           = sizeof(unsigned int) * 4;
+    swizzleBufferDesc.Usage               = D3D11_USAGE_DYNAMIC;
+    swizzleBufferDesc.BindFlags           = D3D11_BIND_CONSTANT_BUFFER;
+    swizzleBufferDesc.CPUAccessFlags      = D3D11_CPU_ACCESS_WRITE;
+    swizzleBufferDesc.MiscFlags           = 0;
+    swizzleBufferDesc.StructureByteStride = 0;
+
+    result = device->CreateBuffer(&swizzleBufferDesc, nullptr, &mSwizzleCB);
+    ASSERT(SUCCEEDED(result));
+    if (FAILED(result))
+    {
+        freeResources();
+        return gl::Error(GL_OUT_OF_MEMORY, "Failed to create blit swizzle buffer, HRESULT: 0x%X",
+                         result);
+    }
+    d3d11::SetDebugName(mSwizzleCB, "Blit11 swizzle constant buffer");
+
+    mResourcesInitialized = true;
+
+    return gl::Error(GL_NO_ERROR);
+}
+
+void Blit11::freeResources()
+{
+    SafeRelease(mVertexBuffer);
+    SafeRelease(mPointSampler);
+    SafeRelease(mLinearSampler);
+    SafeRelease(mScissorEnabledRasterizerState);
+    SafeRelease(mScissorDisabledRasterizerState);
+    SafeRelease(mDepthStencilState);
+    SafeRelease(mSwizzleCB);
+
+    mResourcesInitialized = false;
+}
+
+// static
+Blit11::BlitShaderType Blit11::GetBlitShaderType(GLenum destinationFormat,
+                                                 bool isSigned,
+                                                 bool unpackPremultiplyAlpha,
+                                                 bool unpackUnmultiplyAlpha,
+                                                 ShaderDimension dimension)
+{
+    if (dimension == SHADER_3D)
+    {
+        ASSERT(!unpackPremultiplyAlpha && !unpackUnmultiplyAlpha);
+
+        if (isSigned)
+        {
+            switch (destinationFormat)
+            {
+                case GL_RGBA_INTEGER:
+                    return BLITSHADER_3D_RGBAI;
+                case GL_RGB_INTEGER:
+                    return BLITSHADER_3D_RGBI;
+                case GL_RG_INTEGER:
+                    return BLITSHADER_3D_RGI;
+                case GL_RED_INTEGER:
+                    return BLITSHADER_3D_RI;
+                default:
+                    UNREACHABLE();
+                    return BLITSHADER_INVALID;
+            }
+        }
+        else
+        {
+            switch (destinationFormat)
+            {
+                case GL_RGBA:
+                    return BLITSHADER_3D_RGBAF;
+                case GL_RGBA_INTEGER:
+                    return BLITSHADER_3D_RGBAUI;
+                case GL_BGRA_EXT:
+                    return BLITSHADER_3D_BGRAF;
+                case GL_RGB:
+                    return BLITSHADER_3D_RGBF;
+                case GL_RGB_INTEGER:
+                    return BLITSHADER_3D_RGBUI;
+                case GL_RG:
+                    return BLITSHADER_3D_RGF;
+                case GL_RG_INTEGER:
+                    return BLITSHADER_3D_RGUI;
+                case GL_RED:
+                    return BLITSHADER_3D_RF;
+                case GL_RED_INTEGER:
+                    return BLITSHADER_3D_RUI;
+                case GL_ALPHA:
+                    return BLITSHADER_3D_ALPHA;
+                case GL_LUMINANCE:
+                    return BLITSHADER_3D_LUMA;
+                case GL_LUMINANCE_ALPHA:
+                    return BLITSHADER_3D_LUMAALPHA;
+                default:
+                    UNREACHABLE();
+                    return BLITSHADER_INVALID;
+            }
+        }
+    }
+    else if (isSigned)
+    {
+        ASSERT(!unpackPremultiplyAlpha && !unpackUnmultiplyAlpha);
+
+        switch (destinationFormat)
+        {
+            case GL_RGBA_INTEGER:
+                return BLITSHADER_2D_RGBAI;
+            case GL_RGB_INTEGER:
+                return BLITSHADER_2D_RGBI;
+            case GL_RG_INTEGER:
+                return BLITSHADER_2D_RGI;
+            case GL_RED_INTEGER:
+                return BLITSHADER_2D_RI;
+            default:
+                UNREACHABLE();
+                return BLITSHADER_INVALID;
+        }
+    }
+    else
+    {
+        if (unpackPremultiplyAlpha != unpackUnmultiplyAlpha)
+        {
+            switch (destinationFormat)
+            {
+                case GL_RGBA:
+                    return unpackPremultiplyAlpha ? BLITSHADER_2D_RGBAF_PREMULTIPLY
+                                                  : BLITSHADER_2D_RGBAF_UNMULTIPLY;
+                case GL_BGRA_EXT:
+                    return unpackPremultiplyAlpha ? BLITSHADER_2D_BGRAF_PREMULTIPLY
+                                                  : BLITSHADER_2D_BGRAF_UNMULTIPLY;
+                case GL_RGB:
+                    return unpackPremultiplyAlpha ? BLITSHADER_2D_RGBF_PREMULTIPLY
+                                                  : BLITSHADER_2D_RGBF_UNMULTIPLY;
+                default:
+                    UNREACHABLE();
+                    return BLITSHADER_INVALID;
+            }
+        }
+        else
+        {
+            switch (destinationFormat)
+            {
+                case GL_RGBA:
+                    return BLITSHADER_2D_RGBAF;
+                case GL_RGBA_INTEGER:
+                    return BLITSHADER_2D_RGBAUI;
+                case GL_BGRA_EXT:
+                    return BLITSHADER_2D_BGRAF;
+                case GL_RGB:
+                    return BLITSHADER_2D_RGBF;
+                case GL_RGB_INTEGER:
+                    return BLITSHADER_2D_RGBUI;
+                case GL_RG:
+                    return BLITSHADER_2D_RGF;
+                case GL_RG_INTEGER:
+                    return BLITSHADER_2D_RGUI;
+                case GL_RED:
+                    return BLITSHADER_2D_RF;
+                case GL_RED_INTEGER:
+                    return BLITSHADER_2D_RUI;
+                case GL_ALPHA:
+                    return BLITSHADER_2D_ALPHA;
+                case GL_LUMINANCE:
+                    return BLITSHADER_2D_LUMA;
+                case GL_LUMINANCE_ALPHA:
+                    return BLITSHADER_2D_LUMAALPHA;
+                default:
+                    UNREACHABLE();
+                    return BLITSHADER_INVALID;
+            }
+        }
+    }
+}
+
+// static
+Blit11::SwizzleShaderType Blit11::GetSwizzleShaderType(GLenum type,
+                                                       D3D11_SRV_DIMENSION dimensionality)
+{
+    switch (dimensionality)
+    {
+        case D3D11_SRV_DIMENSION_TEXTURE2D:
+            switch (type)
+            {
+                case GL_FLOAT:
+                    return SWIZZLESHADER_2D_FLOAT;
+                case GL_UNSIGNED_INT:
+                    return SWIZZLESHADER_2D_UINT;
+                case GL_INT:
+                    return SWIZZLESHADER_2D_INT;
+                default:
+                    UNREACHABLE();
+                    return SWIZZLESHADER_INVALID;
+            }
+        case D3D11_SRV_DIMENSION_TEXTURECUBE:
+            switch (type)
+            {
+                case GL_FLOAT:
+                    return SWIZZLESHADER_CUBE_FLOAT;
+                case GL_UNSIGNED_INT:
+                    return SWIZZLESHADER_CUBE_UINT;
+                case GL_INT:
+                    return SWIZZLESHADER_CUBE_INT;
+                default:
+                    UNREACHABLE();
+                    return SWIZZLESHADER_INVALID;
+            }
+        case D3D11_SRV_DIMENSION_TEXTURE3D:
+            switch (type)
+            {
+                case GL_FLOAT:
+                    return SWIZZLESHADER_3D_FLOAT;
+                case GL_UNSIGNED_INT:
+                    return SWIZZLESHADER_3D_UINT;
+                case GL_INT:
+                    return SWIZZLESHADER_3D_INT;
+                default:
+                    UNREACHABLE();
+                    return SWIZZLESHADER_INVALID;
+            }
+        case D3D11_SRV_DIMENSION_TEXTURE2DARRAY:
+            switch (type)
+            {
+                case GL_FLOAT:
+                    return SWIZZLESHADER_ARRAY_FLOAT;
+                case GL_UNSIGNED_INT:
+                    return SWIZZLESHADER_ARRAY_UINT;
+                case GL_INT:
+                    return SWIZZLESHADER_ARRAY_INT;
+                default:
+                    UNREACHABLE();
+                    return SWIZZLESHADER_INVALID;
+            }
+        default:
+            UNREACHABLE();
+            return SWIZZLESHADER_INVALID;
+    }
+}
+
+Blit11::ShaderSupport Blit11::getShaderSupport(const Shader &shader)
+{
+    ID3D11Device *device = mRenderer->getDevice();
+    ShaderSupport support;
+
+    if (shader.dimension == SHADER_2D)
+    {
+        support.inputLayout         = mQuad2DIL.resolve(device);
+        support.vertexShader        = mQuad2DVS.resolve(device);
+        support.geometryShader      = nullptr;
+        support.vertexWriteFunction = Write2DVertices;
+    }
+    else
+    {
+        ASSERT(shader.dimension == SHADER_3D);
+        support.inputLayout         = mQuad3DIL.resolve(device);
+        support.vertexShader        = mQuad3DVS.resolve(device);
+        support.geometryShader      = mQuad3DGS.resolve(device);
+        support.vertexWriteFunction = Write3DVertices;
+    }
+
+    return support;
+}
+
+gl::Error Blit11::swizzleTexture(ID3D11ShaderResourceView *source,
+                                 ID3D11RenderTargetView *dest,
+                                 const gl::Extents &size,
+                                 const gl::SwizzleState &swizzleTarget)
+{
+    ANGLE_TRY(initResources());
+
+    HRESULT result;
+    ID3D11DeviceContext *deviceContext = mRenderer->getDeviceContext();
+
+    D3D11_SHADER_RESOURCE_VIEW_DESC sourceSRVDesc;
+    source->GetDesc(&sourceSRVDesc);
+
+    GLenum componentType = d3d11::GetComponentType(sourceSRVDesc.Format);
+    if (componentType == GL_NONE)
+    {
+        // We're swizzling the depth component of a depth-stencil texture.
+        switch (sourceSRVDesc.Format)
+        {
+            case DXGI_FORMAT_R24_UNORM_X8_TYPELESS:
+                componentType = GL_UNSIGNED_NORMALIZED;
+                break;
+            case DXGI_FORMAT_R32_FLOAT_X8X24_TYPELESS:
+                componentType = GL_FLOAT;
+                break;
+            default:
+                UNREACHABLE();
+                break;
+        }
+    }
+
+    GLenum shaderType = GL_NONE;
+    switch (componentType)
+    {
+        case GL_UNSIGNED_NORMALIZED:
+        case GL_SIGNED_NORMALIZED:
+        case GL_FLOAT:
+            shaderType = GL_FLOAT;
+            break;
+        case GL_INT:
+            shaderType = GL_INT;
+            break;
+        case GL_UNSIGNED_INT:
+            shaderType = GL_UNSIGNED_INT;
+            break;
+        default:
+            UNREACHABLE();
+            break;
+    }
+
+    const Shader *shader = nullptr;
+    ANGLE_TRY(getSwizzleShader(shaderType, sourceSRVDesc.ViewDimension, &shader));
+
+    // Set vertices
+    D3D11_MAPPED_SUBRESOURCE mappedResource;
+    result = deviceContext->Map(mVertexBuffer, 0, D3D11_MAP_WRITE_DISCARD, 0, &mappedResource);
+    if (FAILED(result))
+    {
+        return gl::Error(GL_OUT_OF_MEMORY,
+                         "Failed to map internal vertex buffer for swizzle, HRESULT: 0x%X.",
+                         result);
+    }
+
+    const ShaderSupport &support = getShaderSupport(*shader);
+
+    UINT stride    = 0;
+    UINT startIdx  = 0;
+    UINT drawCount = 0;
+    D3D11_PRIMITIVE_TOPOLOGY topology;
+
+    gl::Box area(0, 0, 0, size.width, size.height, size.depth);
+    support.vertexWriteFunction(area, size, area, size, mappedResource.pData, &stride, &drawCount,
+                                &topology);
+
+    deviceContext->Unmap(mVertexBuffer, 0);
+
+    // Set constant buffer
+    result = deviceContext->Map(mSwizzleCB, 0, D3D11_MAP_WRITE_DISCARD, 0, &mappedResource);
+    if (FAILED(result))
+    {
+        return gl::Error(GL_OUT_OF_MEMORY,
+                         "Failed to map internal constant buffer for swizzle, HRESULT: 0x%X.",
+                         result);
+    }
+
+    unsigned int *swizzleIndices = reinterpret_cast<unsigned int *>(mappedResource.pData);
+    swizzleIndices[0]            = GetSwizzleIndex(swizzleTarget.swizzleRed);
+    swizzleIndices[1]            = GetSwizzleIndex(swizzleTarget.swizzleGreen);
+    swizzleIndices[2]            = GetSwizzleIndex(swizzleTarget.swizzleBlue);
+    swizzleIndices[3]            = GetSwizzleIndex(swizzleTarget.swizzleAlpha);
+
+    deviceContext->Unmap(mSwizzleCB, 0);
+
+    // Apply vertex buffer
+    deviceContext->IASetVertexBuffers(0, 1, &mVertexBuffer, &stride, &startIdx);
+
+    // Apply constant buffer
+    deviceContext->PSSetConstantBuffers(0, 1, &mSwizzleCB);
+
+    // Apply state
+    deviceContext->OMSetBlendState(nullptr, nullptr, 0xFFFFFFF);
+    deviceContext->OMSetDepthStencilState(nullptr, 0xFFFFFFFF);
+    deviceContext->RSSetState(mScissorDisabledRasterizerState);
+
+    // Apply shaders
+    deviceContext->IASetInputLayout(support.inputLayout);
+    deviceContext->IASetPrimitiveTopology(topology);
+    deviceContext->VSSetShader(support.vertexShader, nullptr, 0);
+
+    deviceContext->PSSetShader(shader->pixelShader, nullptr, 0);
+    deviceContext->GSSetShader(support.geometryShader, nullptr, 0);
+
+    // Unset the currently bound shader resource to avoid conflicts
+    auto stateManager = mRenderer->getStateManager();
+    stateManager->setShaderResource(gl::SAMPLER_PIXEL, 0, nullptr);
+
+    // Apply render target
+    stateManager->setOneTimeRenderTarget(dest, nullptr);
+
+    // Set the viewport
+    D3D11_VIEWPORT viewport;
+    viewport.TopLeftX = 0;
+    viewport.TopLeftY = 0;
+    viewport.Width    = static_cast<FLOAT>(size.width);
+    viewport.Height   = static_cast<FLOAT>(size.height);
+    viewport.MinDepth = 0.0f;
+    viewport.MaxDepth = 1.0f;
+    deviceContext->RSSetViewports(1, &viewport);
+
+    // Apply textures
+    stateManager->setShaderResource(gl::SAMPLER_PIXEL, 0, source);
+
+    // Apply samplers
+    deviceContext->PSSetSamplers(0, 1, &mPointSampler);
+
+    // Draw the quad
+    deviceContext->Draw(drawCount, 0);
+
+    // Unbind textures and render targets and vertex buffer
+    stateManager->setShaderResource(gl::SAMPLER_PIXEL, 0, nullptr);
+
+    UINT zero                      = 0;
+    ID3D11Buffer *const nullBuffer = nullptr;
+    deviceContext->IASetVertexBuffers(0, 1, &nullBuffer, &zero, &zero);
+
+    mRenderer->markAllStateDirty();
+
+    return gl::Error(GL_NO_ERROR);
+}
+
+gl::Error Blit11::copyTexture(ID3D11ShaderResourceView *source,
+                              const gl::Box &sourceArea,
+                              const gl::Extents &sourceSize,
+                              ID3D11RenderTargetView *dest,
+                              const gl::Box &destArea,
+                              const gl::Extents &destSize,
+                              const gl::Rectangle *scissor,
+                              GLenum destFormat,
+                              GLenum filter,
+                              bool maskOffAlpha,
+                              bool unpackPremultiplyAlpha,
+                              bool unpackUnmultiplyAlpha)
+{
+    ANGLE_TRY(initResources());
+
+    HRESULT result;
+    ID3D11DeviceContext *deviceContext = mRenderer->getDeviceContext();
+
+    // Determine if the source format is a signed integer format, the destFormat will already
+    // be GL_XXXX_INTEGER but it does not tell us if it is signed or unsigned.
+    D3D11_SHADER_RESOURCE_VIEW_DESC sourceSRVDesc;
+    source->GetDesc(&sourceSRVDesc);
+
+    GLenum componentType = d3d11::GetComponentType(sourceSRVDesc.Format);
+
+    ASSERT(componentType != GL_NONE);
+    ASSERT(componentType != GL_SIGNED_NORMALIZED);
+    bool isSigned = (componentType == GL_INT);
+
+    ShaderDimension dimension =
+        (sourceSRVDesc.ViewDimension == D3D11_SRV_DIMENSION_TEXTURE3D) ? SHADER_3D : SHADER_2D;
+
+    const Shader *shader = nullptr;
+    ANGLE_TRY(getBlitShader(destFormat, isSigned, unpackPremultiplyAlpha, unpackUnmultiplyAlpha,
+                            dimension, &shader));
+
+    const ShaderSupport &support = getShaderSupport(*shader);
+
+    // Set vertices
+    D3D11_MAPPED_SUBRESOURCE mappedResource;
+    result = deviceContext->Map(mVertexBuffer, 0, D3D11_MAP_WRITE_DISCARD, 0, &mappedResource);
+    if (FAILED(result))
+    {
+        return gl::Error(GL_OUT_OF_MEMORY,
+                         "Failed to map internal vertex buffer for texture copy, HRESULT: 0x%X.",
+                         result);
+    }
+
+    UINT stride    = 0;
+    UINT startIdx  = 0;
+    UINT drawCount = 0;
+    D3D11_PRIMITIVE_TOPOLOGY topology;
+
+    support.vertexWriteFunction(sourceArea, sourceSize, destArea, destSize, mappedResource.pData,
+                                &stride, &drawCount, &topology);
+
+    deviceContext->Unmap(mVertexBuffer, 0);
+
+    // Apply vertex buffer
+    deviceContext->IASetVertexBuffers(0, 1, &mVertexBuffer, &stride, &startIdx);
+
+    // Apply state
+    if (maskOffAlpha)
+    {
+        ID3D11BlendState *blendState = mAlphaMaskBlendState.resolve(mRenderer->getDevice());
+        ASSERT(blendState);
+        deviceContext->OMSetBlendState(blendState, nullptr, 0xFFFFFFF);
+    }
+    else
+    {
+        deviceContext->OMSetBlendState(nullptr, nullptr, 0xFFFFFFF);
+    }
+    deviceContext->OMSetDepthStencilState(nullptr, 0xFFFFFFFF);
+
+    if (scissor)
+    {
+        D3D11_RECT scissorRect;
+        scissorRect.left   = scissor->x;
+        scissorRect.right  = scissor->x + scissor->width;
+        scissorRect.top    = scissor->y;
+        scissorRect.bottom = scissor->y + scissor->height;
+
+        deviceContext->RSSetScissorRects(1, &scissorRect);
+        deviceContext->RSSetState(mScissorEnabledRasterizerState);
+    }
+    else
+    {
+        deviceContext->RSSetState(mScissorDisabledRasterizerState);
+    }
+
+    // Apply shaders
+    deviceContext->IASetInputLayout(support.inputLayout);
+    deviceContext->IASetPrimitiveTopology(topology);
+    deviceContext->VSSetShader(support.vertexShader, nullptr, 0);
+
+    deviceContext->PSSetShader(shader->pixelShader, nullptr, 0);
+    deviceContext->GSSetShader(support.geometryShader, nullptr, 0);
+
+    // Unset the currently bound shader resource to avoid conflicts
+    auto stateManager = mRenderer->getStateManager();
+    stateManager->setShaderResource(gl::SAMPLER_PIXEL, 0, nullptr);
+
+    // Apply render target
+    stateManager->setOneTimeRenderTarget(dest, nullptr);
+
+    // Set the viewport
+    D3D11_VIEWPORT viewport;
+    viewport.TopLeftX = 0;
+    viewport.TopLeftY = 0;
+    viewport.Width    = static_cast<FLOAT>(destSize.width);
+    viewport.Height   = static_cast<FLOAT>(destSize.height);
+    viewport.MinDepth = 0.0f;
+    viewport.MaxDepth = 1.0f;
+    deviceContext->RSSetViewports(1, &viewport);
+
+    // Apply textures
+    stateManager->setShaderResource(gl::SAMPLER_PIXEL, 0, source);
+
+    // Apply samplers
+    ID3D11SamplerState *sampler = nullptr;
+    switch (filter)
+    {
+        case GL_NEAREST:
+            sampler = mPointSampler;
+            break;
+        case GL_LINEAR:
+            sampler = mLinearSampler;
+            break;
+
+        default:
+            UNREACHABLE();
+            return gl::Error(GL_OUT_OF_MEMORY, "Internal error, unknown blit filter mode.");
+    }
+    deviceContext->PSSetSamplers(0, 1, &sampler);
+
+    // Draw the quad
+    deviceContext->Draw(drawCount, 0);
+
+    // Unbind textures and render targets and vertex buffer
+    stateManager->setShaderResource(gl::SAMPLER_PIXEL, 0, nullptr);
+
+    UINT zero                      = 0;
+    ID3D11Buffer *const nullBuffer = nullptr;
+    deviceContext->IASetVertexBuffers(0, 1, &nullBuffer, &zero, &zero);
+
+    mRenderer->markAllStateDirty();
+
+    return gl::NoError();
+}
+
+gl::Error Blit11::copyStencil(const TextureHelper11 &source,
+                              unsigned int sourceSubresource,
+                              const gl::Box &sourceArea,
+                              const gl::Extents &sourceSize,
+                              const TextureHelper11 &dest,
+                              unsigned int destSubresource,
+                              const gl::Box &destArea,
+                              const gl::Extents &destSize,
+                              const gl::Rectangle *scissor)
+{
+    return copyDepthStencilImpl(source, sourceSubresource, sourceArea, sourceSize, dest,
+                                destSubresource, destArea, destSize, scissor, true);
+}
+
+gl::Error Blit11::copyDepth(ID3D11ShaderResourceView *source,
+                            const gl::Box &sourceArea,
+                            const gl::Extents &sourceSize,
+                            ID3D11DepthStencilView *dest,
+                            const gl::Box &destArea,
+                            const gl::Extents &destSize,
+                            const gl::Rectangle *scissor)
+{
+    ANGLE_TRY(initResources());
+
+    HRESULT result;
+    ID3D11DeviceContext *deviceContext = mRenderer->getDeviceContext();
+
+    // Set vertices
+    D3D11_MAPPED_SUBRESOURCE mappedResource;
+    result = deviceContext->Map(mVertexBuffer, 0, D3D11_MAP_WRITE_DISCARD, 0, &mappedResource);
+    if (FAILED(result))
+    {
+        return gl::Error(GL_OUT_OF_MEMORY,
+                         "Failed to map internal vertex buffer for texture copy, HRESULT: 0x%X.",
+                         result);
+    }
+
+    UINT stride    = 0;
+    UINT startIdx  = 0;
+    UINT drawCount = 0;
+    D3D11_PRIMITIVE_TOPOLOGY topology;
+
+    Write2DVertices(sourceArea, sourceSize, destArea, destSize, mappedResource.pData, &stride,
+                    &drawCount, &topology);
+
+    deviceContext->Unmap(mVertexBuffer, 0);
+
+    // Apply vertex buffer
+    deviceContext->IASetVertexBuffers(0, 1, &mVertexBuffer, &stride, &startIdx);
+
+    // Apply state
+    deviceContext->OMSetBlendState(nullptr, nullptr, 0xFFFFFFF);
+    deviceContext->OMSetDepthStencilState(mDepthStencilState, 0xFFFFFFFF);
+
+    if (scissor)
+    {
+        D3D11_RECT scissorRect;
+        scissorRect.left   = scissor->x;
+        scissorRect.right  = scissor->x + scissor->width;
+        scissorRect.top    = scissor->y;
+        scissorRect.bottom = scissor->y + scissor->height;
+
+        deviceContext->RSSetScissorRects(1, &scissorRect);
+        deviceContext->RSSetState(mScissorEnabledRasterizerState);
+    }
+    else
+    {
+        deviceContext->RSSetState(mScissorDisabledRasterizerState);
+    }
+
+    ID3D11Device *device         = mRenderer->getDevice();
+    ID3D11VertexShader *quad2DVS = mQuad2DVS.resolve(device);
+    if (quad2DVS == nullptr)
+    {
+        return gl::Error(GL_INVALID_OPERATION, "Error compiling internal 2D blit vertex shader");
+    }
+
+    // Apply shaders
+    deviceContext->IASetInputLayout(mQuad2DIL.resolve(device));
+    deviceContext->IASetPrimitiveTopology(topology);
+    deviceContext->VSSetShader(quad2DVS, nullptr, 0);
+
+    deviceContext->PSSetShader(mDepthPS.resolve(device), nullptr, 0);
+    deviceContext->GSSetShader(nullptr, nullptr, 0);
+
+    // Unset the currently bound shader resource to avoid conflicts
+    auto stateManager = mRenderer->getStateManager();
+    stateManager->setShaderResource(gl::SAMPLER_PIXEL, 0, nullptr);
+
+    // Apply render target
+    stateManager->setOneTimeRenderTarget(nullptr, dest);
+
+    // Set the viewport
+    D3D11_VIEWPORT viewport;
+    viewport.TopLeftX = 0;
+    viewport.TopLeftY = 0;
+    viewport.Width    = static_cast<FLOAT>(destSize.width);
+    viewport.Height   = static_cast<FLOAT>(destSize.height);
+    viewport.MinDepth = 0.0f;
+    viewport.MaxDepth = 1.0f;
+    deviceContext->RSSetViewports(1, &viewport);
+
+    // Apply textures
+    stateManager->setShaderResource(gl::SAMPLER_PIXEL, 0, source);
+
+    // Apply samplers
+    deviceContext->PSSetSamplers(0, 1, &mPointSampler);
+
+    // Draw the quad
+    deviceContext->Draw(drawCount, 0);
+
+    // Unbind textures and render targets and vertex buffer
+    stateManager->setShaderResource(gl::SAMPLER_PIXEL, 0, nullptr);
+
+    UINT zero                      = 0;
+    ID3D11Buffer *const nullBuffer = nullptr;
+    deviceContext->IASetVertexBuffers(0, 1, &nullBuffer, &zero, &zero);
+
+    mRenderer->markAllStateDirty();
+
+    return gl::Error(GL_NO_ERROR);
+}
+
+gl::Error Blit11::copyDepthStencil(const TextureHelper11 &source,
+                                   unsigned int sourceSubresource,
+                                   const gl::Box &sourceArea,
+                                   const gl::Extents &sourceSize,
+                                   const TextureHelper11 &dest,
+                                   unsigned int destSubresource,
+                                   const gl::Box &destArea,
+                                   const gl::Extents &destSize,
+                                   const gl::Rectangle *scissor)
+{
+    return copyDepthStencilImpl(source, sourceSubresource, sourceArea, sourceSize, dest,
+                                destSubresource, destArea, destSize, scissor, false);
+}
+
+gl::Error Blit11::copyDepthStencilImpl(const TextureHelper11 &source,
+                                       unsigned int sourceSubresource,
+                                       const gl::Box &sourceArea,
+                                       const gl::Extents &sourceSize,
+                                       const TextureHelper11 &dest,
+                                       unsigned int destSubresource,
+                                       const gl::Box &destArea,
+                                       const gl::Extents &destSize,
+                                       const gl::Rectangle *scissor,
+                                       bool stencilOnly)
+{
+    auto srcDXGIFormat         = source.getFormat();
+    const auto &srcSizeInfo    = d3d11::GetDXGIFormatSizeInfo(srcDXGIFormat);
+    unsigned int srcPixelSize  = srcSizeInfo.pixelBytes;
+    unsigned int copyOffset    = 0;
+    unsigned int copySize      = srcPixelSize;
+    auto destDXGIFormat        = dest.getFormat();
+    const auto &destSizeInfo   = d3d11::GetDXGIFormatSizeInfo(destDXGIFormat);
+    unsigned int destPixelSize = destSizeInfo.pixelBytes;
+
+    ASSERT(srcDXGIFormat == destDXGIFormat || destDXGIFormat == DXGI_FORMAT_R32_TYPELESS);
+
+    if (stencilOnly)
+    {
+        const auto &srcFormat = source.getFormatSet().format();
+
+        // Stencil channel should be right after the depth channel. Some views to depth/stencil
+        // resources have red channel for depth, in which case the depth channel bit width is in
+        // redBits.
+        ASSERT((srcFormat.redBits != 0) != (srcFormat.depthBits != 0));
+        GLuint depthBits = srcFormat.redBits + srcFormat.depthBits;
+        // Known formats have either 24 or 32 bits of depth.
+        ASSERT(depthBits == 24 || depthBits == 32);
+        copyOffset = depthBits / 8;
+
+        // Stencil is assumed to be 8-bit - currently this is true for all possible formats.
+        copySize = 1;
+    }
+
+    if (srcDXGIFormat != destDXGIFormat)
+    {
+        if (srcDXGIFormat == DXGI_FORMAT_R24G8_TYPELESS)
+        {
+            ASSERT(sourceArea == destArea && sourceSize == destSize && scissor == nullptr);
+            return copyAndConvert(source, sourceSubresource, sourceArea, sourceSize, dest,
+                                  destSubresource, destArea, destSize, scissor, copyOffset,
+                                  copyOffset, copySize, srcPixelSize, destPixelSize,
+                                  BlitD24S8ToD32F);
+        }
+        ASSERT(srcDXGIFormat == DXGI_FORMAT_R32G8X24_TYPELESS);
+        return copyAndConvert(source, sourceSubresource, sourceArea, sourceSize, dest,
+                              destSubresource, destArea, destSize, scissor, copyOffset, copyOffset,
+                              copySize, srcPixelSize, destPixelSize, BlitD32FS8ToD32F);
+    }
+
+    return copyAndConvert(source, sourceSubresource, sourceArea, sourceSize, dest, destSubresource,
+                          destArea, destSize, scissor, copyOffset, copyOffset, copySize,
+                          srcPixelSize, destPixelSize, StretchedBlitNearest);
+}
+
+gl::Error Blit11::copyAndConvertImpl(const TextureHelper11 &source,
+                                     unsigned int sourceSubresource,
+                                     const gl::Box &sourceArea,
+                                     const gl::Extents &sourceSize,
+                                     const TextureHelper11 &destStaging,
+                                     const gl::Box &destArea,
+                                     const gl::Extents &destSize,
+                                     const gl::Rectangle *scissor,
+                                     size_t readOffset,
+                                     size_t writeOffset,
+                                     size_t copySize,
+                                     size_t srcPixelStride,
+                                     size_t destPixelStride,
+                                     BlitConvertFunction *convertFunction)
+{
+    ANGLE_TRY(initResources());
+
+    ID3D11Device *device               = mRenderer->getDevice();
+    ID3D11DeviceContext *deviceContext = mRenderer->getDeviceContext();
+
+    TextureHelper11 sourceStaging;
+    ANGLE_TRY_RESULT(CreateStagingTexture(GL_TEXTURE_2D, source.getFormatSet(), sourceSize,
+                                          StagingAccess::READ, device),
+                     sourceStaging);
+
+    deviceContext->CopySubresourceRegion(sourceStaging.getResource(), 0, 0, 0, 0,
+                                         source.getResource(), sourceSubresource, nullptr);
+
+    D3D11_MAPPED_SUBRESOURCE sourceMapping;
+    HRESULT result =
+        deviceContext->Map(sourceStaging.getResource(), 0, D3D11_MAP_READ, 0, &sourceMapping);
+    if (FAILED(result))
+    {
+        return gl::Error(
+            GL_OUT_OF_MEMORY,
+            "Failed to map internal source staging texture for depth stencil blit, HRESULT: 0x%X.",
+            result);
+    }
+
+    D3D11_MAPPED_SUBRESOURCE destMapping;
+    result = deviceContext->Map(destStaging.getResource(), 0, D3D11_MAP_WRITE, 0, &destMapping);
+    if (FAILED(result))
+    {
+        deviceContext->Unmap(sourceStaging.getResource(), 0);
+        return gl::Error(GL_OUT_OF_MEMORY,
+                         "Failed to map internal destination staging texture for depth stencil "
+                         "blit, HRESULT: 0x%X.",
+                         result);
+    }
+
+    // Clip dest area to the destination size
+    gl::Rectangle clipRect = gl::Rectangle(0, 0, destSize.width, destSize.height);
+
+    // Clip dest area to the scissor
+    if (scissor)
+    {
+        gl::ClipRectangle(clipRect, *scissor, &clipRect);
+    }
+
+    convertFunction(sourceArea, destArea, clipRect, sourceSize, sourceMapping.RowPitch,
+                    destMapping.RowPitch, readOffset, writeOffset, copySize, srcPixelStride,
+                    destPixelStride, static_cast<const uint8_t *>(sourceMapping.pData),
+                    static_cast<uint8_t *>(destMapping.pData));
+
+    deviceContext->Unmap(sourceStaging.getResource(), 0);
+    deviceContext->Unmap(destStaging.getResource(), 0);
+
+    return gl::NoError();
+}
+
+gl::Error Blit11::copyAndConvert(const TextureHelper11 &source,
+                                 unsigned int sourceSubresource,
+                                 const gl::Box &sourceArea,
+                                 const gl::Extents &sourceSize,
+                                 const TextureHelper11 &dest,
+                                 unsigned int destSubresource,
+                                 const gl::Box &destArea,
+                                 const gl::Extents &destSize,
+                                 const gl::Rectangle *scissor,
+                                 size_t readOffset,
+                                 size_t writeOffset,
+                                 size_t copySize,
+                                 size_t srcPixelStride,
+                                 size_t destPixelStride,
+                                 BlitConvertFunction *convertFunction)
+{
+    ANGLE_TRY(initResources());
+
+    ID3D11Device *device               = mRenderer->getDevice();
+    ID3D11DeviceContext *deviceContext = mRenderer->getDeviceContext();
+
+    // HACK: Create the destination staging buffer as a read/write texture so
+    // ID3D11DevicContext::UpdateSubresource can be called
+    //       using it's mapped data as a source
+    TextureHelper11 destStaging;
+    ANGLE_TRY_RESULT(CreateStagingTexture(GL_TEXTURE_2D, dest.getFormatSet(), destSize,
+                                          StagingAccess::READ_WRITE, device),
+                     destStaging);
+
+    deviceContext->CopySubresourceRegion(destStaging.getResource(), 0, 0, 0, 0, dest.getResource(),
+                                         destSubresource, nullptr);
+
+    copyAndConvertImpl(source, sourceSubresource, sourceArea, sourceSize, destStaging, destArea,
+                       destSize, scissor, readOffset, writeOffset, copySize, srcPixelStride,
+                       destPixelStride, convertFunction);
+
+    // Work around timeouts/TDRs in older NVIDIA drivers.
+    if (mRenderer->getWorkarounds().depthStencilBlitExtraCopy)
+    {
+        D3D11_MAPPED_SUBRESOURCE mapped;
+        deviceContext->Map(destStaging.getResource(), 0, D3D11_MAP_READ, 0, &mapped);
+        deviceContext->UpdateSubresource(dest.getResource(), destSubresource, nullptr, mapped.pData,
+                                         mapped.RowPitch, mapped.DepthPitch);
+        deviceContext->Unmap(destStaging.getResource(), 0);
+    }
+    else
+    {
+        deviceContext->CopySubresourceRegion(dest.getResource(), destSubresource, 0, 0, 0,
+                                             destStaging.getResource(), 0, nullptr);
+    }
+
+    return gl::NoError();
+}
+
+void Blit11::addBlitShaderToMap(BlitShaderType blitShaderType,
+                                ShaderDimension dimension,
+                                ID3D11PixelShader *ps)
+{
+    ASSERT(mBlitShaderMap.find(blitShaderType) == mBlitShaderMap.end());
+    ASSERT(ps);
+
+    Shader shader;
+    shader.dimension   = dimension;
+    shader.pixelShader = ps;
+
+    mBlitShaderMap[blitShaderType] = shader;
+}
+
+void Blit11::addSwizzleShaderToMap(SwizzleShaderType swizzleShaderType,
+                                   ShaderDimension dimension,
+                                   ID3D11PixelShader *ps)
+{
+    ASSERT(mSwizzleShaderMap.find(swizzleShaderType) == mSwizzleShaderMap.end());
+    ASSERT(ps);
+
+    Shader shader;
+    shader.dimension   = dimension;
+    shader.pixelShader = ps;
+
+    mSwizzleShaderMap[swizzleShaderType] = shader;
+}
+
+void Blit11::clearShaderMap()
+{
+    for (auto &blitShader : mBlitShaderMap)
+    {
+        SafeRelease(blitShader.second.pixelShader);
+    }
+    mBlitShaderMap.clear();
+
+    for (auto &swizzleShader : mSwizzleShaderMap)
+    {
+        SafeRelease(swizzleShader.second.pixelShader);
+    }
+    mSwizzleShaderMap.clear();
+}
+
+gl::Error Blit11::getBlitShader(GLenum destFormat,
+                                bool isSigned,
+                                bool unpackPremultiplyAlpha,
+                                bool unpackUnmultiplyAlpha,
+                                ShaderDimension dimension,
+                                const Shader **shader)
+{
+    BlitShaderType blitShaderType = GetBlitShaderType(destFormat, isSigned, unpackPremultiplyAlpha,
+                                                      unpackUnmultiplyAlpha, dimension);
+
+    if (blitShaderType == BLITSHADER_INVALID)
+    {
+        return gl::Error(GL_INVALID_OPERATION, "Internal blit shader type mismatch");
+    }
+
+    auto blitShaderIt = mBlitShaderMap.find(blitShaderType);
+    if (blitShaderIt != mBlitShaderMap.end())
+    {
+        *shader = &blitShaderIt->second;
+        return gl::Error(GL_NO_ERROR);
+    }
+
+    ASSERT(dimension == SHADER_2D || mRenderer->isES3Capable());
+
+    ID3D11Device *device = mRenderer->getDevice();
+
+    switch (blitShaderType)
+    {
+        case BLITSHADER_2D_RGBAF:
+            addBlitShaderToMap(
+                blitShaderType, SHADER_2D,
+                d3d11::CompilePS(device, g_PS_PassthroughRGBA2D, "Blit11 2D RGBA pixel shader"));
+            break;
+        case BLITSHADER_2D_RGBAF_PREMULTIPLY:
+            addBlitShaderToMap(blitShaderType, SHADER_2D,
+                               d3d11::CompilePS(device, g_PS_PassthroughRGBAPremultiply2D,
+                                                "Blit11 2D RGBA premultiply pixel shader"));
+            break;
+        case BLITSHADER_2D_RGBAF_UNMULTIPLY:
+            addBlitShaderToMap(blitShaderType, SHADER_2D,
+                               d3d11::CompilePS(device, g_PS_PassthroughRGBAUnmultiply2D,
+                                                "Blit11 2D RGBA unmultiply pixel shader"));
+            break;
+        case BLITSHADER_2D_BGRAF:
+            addBlitShaderToMap(
+                blitShaderType, SHADER_2D,
+                d3d11::CompilePS(device, g_PS_PassthroughRGBA2D, "Blit11 2D BGRA pixel shader"));
+            break;
+        case BLITSHADER_2D_BGRAF_PREMULTIPLY:
+            addBlitShaderToMap(blitShaderType, SHADER_2D,
+                               d3d11::CompilePS(device, g_PS_PassthroughRGBAPremultiply2D,
+                                                "Blit11 2D BGRA premultiply pixel shader"));
+            break;
+        case BLITSHADER_2D_BGRAF_UNMULTIPLY:
+            addBlitShaderToMap(blitShaderType, SHADER_2D,
+                               d3d11::CompilePS(device, g_PS_PassthroughRGBAUnmultiply2D,
+                                                "Blit11 2D BGRA unmultiply pixel shader"));
+            break;
+        case BLITSHADER_2D_RGBF:
+            addBlitShaderToMap(
+                blitShaderType, SHADER_2D,
+                d3d11::CompilePS(device, g_PS_PassthroughRGB2D, "Blit11 2D RGB pixel shader"));
+            break;
+        case BLITSHADER_2D_RGBF_PREMULTIPLY:
+            addBlitShaderToMap(blitShaderType, SHADER_2D,
+                               d3d11::CompilePS(device, g_PS_PassthroughRGBPremultiply2D,
+                                                "Blit11 2D RGB premultiply pixel shader"));
+            break;
+        case BLITSHADER_2D_RGBF_UNMULTIPLY:
+            addBlitShaderToMap(blitShaderType, SHADER_2D,
+                               d3d11::CompilePS(device, g_PS_PassthroughRGBUnmultiply2D,
+                                                "Blit11 2D RGB unmultiply pixel shader"));
+            break;
+        case BLITSHADER_2D_RGF:
+            addBlitShaderToMap(
+                blitShaderType, SHADER_2D,
+                d3d11::CompilePS(device, g_PS_PassthroughRG2D, "Blit11 2D RG pixel shader"));
+            break;
+        case BLITSHADER_2D_RF:
+            addBlitShaderToMap(
+                blitShaderType, SHADER_2D,
+                d3d11::CompilePS(device, g_PS_PassthroughR2D, "Blit11 2D R pixel shader"));
+            break;
+        case BLITSHADER_2D_ALPHA:
+            addBlitShaderToMap(
+                blitShaderType, SHADER_2D,
+                d3d11::CompilePS(device, g_PS_PassthroughRGBA2D, "Blit11 2D alpha pixel shader"));
+            break;
+        case BLITSHADER_2D_LUMA:
+            addBlitShaderToMap(
+                blitShaderType, SHADER_2D,
+                d3d11::CompilePS(device, g_PS_PassthroughLum2D, "Blit11 2D lum pixel shader"));
+            break;
+        case BLITSHADER_2D_LUMAALPHA:
+            addBlitShaderToMap(blitShaderType, SHADER_2D,
+                               d3d11::CompilePS(device, g_PS_PassthroughLumAlpha2D,
+                                                "Blit11 2D luminance alpha pixel shader"));
+            break;
+        case BLITSHADER_2D_RGBAUI:
+            addBlitShaderToMap(blitShaderType, SHADER_2D,
+                               d3d11::CompilePS(device, g_PS_PassthroughRGBA2DUI,
+                                                "Blit11 2D RGBA UI pixel shader"));
+            break;
+        case BLITSHADER_2D_RGBAI:
+            addBlitShaderToMap(
+                blitShaderType, SHADER_2D,
+                d3d11::CompilePS(device, g_PS_PassthroughRGBA2DI, "Blit11 2D RGBA I pixel shader"));
+            break;
+        case BLITSHADER_2D_RGBUI:
+            addBlitShaderToMap(
+                blitShaderType, SHADER_2D,
+                d3d11::CompilePS(device, g_PS_PassthroughRGB2DUI, "Blit11 2D RGB UI pixel shader"));
+            break;
+        case BLITSHADER_2D_RGBI:
+            addBlitShaderToMap(
+                blitShaderType, SHADER_2D,
+                d3d11::CompilePS(device, g_PS_PassthroughRGB2DI, "Blit11 2D RGB I pixel shader"));
+            break;
+        case BLITSHADER_2D_RGUI:
+            addBlitShaderToMap(
+                blitShaderType, SHADER_2D,
+                d3d11::CompilePS(device, g_PS_PassthroughRG2DUI, "Blit11 2D RG UI pixel shader"));
+            break;
+        case BLITSHADER_2D_RGI:
+            addBlitShaderToMap(
+                blitShaderType, SHADER_2D,
+                d3d11::CompilePS(device, g_PS_PassthroughRG2DI, "Blit11 2D RG I pixel shader"));
+            break;
+        case BLITSHADER_2D_RUI:
+            addBlitShaderToMap(
+                blitShaderType, SHADER_2D,
+                d3d11::CompilePS(device, g_PS_PassthroughR2DUI, "Blit11 2D R UI pixel shader"));
+            break;
+        case BLITSHADER_2D_RI:
+            addBlitShaderToMap(
+                blitShaderType, SHADER_2D,
+                d3d11::CompilePS(device, g_PS_PassthroughR2DI, "Blit11 2D R I pixel shader"));
+            break;
+        case BLITSHADER_3D_RGBAF:
+            addBlitShaderToMap(
+                blitShaderType, SHADER_3D,
+                d3d11::CompilePS(device, g_PS_PassthroughRGBA3D, "Blit11 3D RGBA pixel shader"));
+            break;
+        case BLITSHADER_3D_RGBAUI:
+            addBlitShaderToMap(blitShaderType, SHADER_3D,
+                               d3d11::CompilePS(device, g_PS_PassthroughRGBA3DUI,
+                                                "Blit11 3D UI RGBA pixel shader"));
+            break;
+        case BLITSHADER_3D_RGBAI:
+            addBlitShaderToMap(
+                blitShaderType, SHADER_3D,
+                d3d11::CompilePS(device, g_PS_PassthroughRGBA3DI, "Blit11 3D I RGBA pixel shader"));
+            break;
+        case BLITSHADER_3D_BGRAF:
+            addBlitShaderToMap(
+                blitShaderType, SHADER_3D,
+                d3d11::CompilePS(device, g_PS_PassthroughRGBA3D, "Blit11 3D BGRA pixel shader"));
+            break;
+        case BLITSHADER_3D_RGBF:
+            addBlitShaderToMap(
+                blitShaderType, SHADER_3D,
+                d3d11::CompilePS(device, g_PS_PassthroughRGB3D, "Blit11 3D RGB pixel shader"));
+            break;
+        case BLITSHADER_3D_RGBUI:
+            addBlitShaderToMap(
+                blitShaderType, SHADER_3D,
+                d3d11::CompilePS(device, g_PS_PassthroughRGB3DUI, "Blit11 3D RGB UI pixel shader"));
+            break;
+        case BLITSHADER_3D_RGBI:
+            addBlitShaderToMap(
+                blitShaderType, SHADER_3D,
+                d3d11::CompilePS(device, g_PS_PassthroughRGB3DI, "Blit11 3D RGB I pixel shader"));
+            break;
+        case BLITSHADER_3D_RGF:
+            addBlitShaderToMap(
+                blitShaderType, SHADER_3D,
+                d3d11::CompilePS(device, g_PS_PassthroughRG3D, "Blit11 3D RG pixel shader"));
+            break;
+        case BLITSHADER_3D_RGUI:
+            addBlitShaderToMap(
+                blitShaderType, SHADER_3D,
+                d3d11::CompilePS(device, g_PS_PassthroughRG3DUI, "Blit11 3D RG UI pixel shader"));
+            break;
+        case BLITSHADER_3D_RGI:
+            addBlitShaderToMap(
+                blitShaderType, SHADER_3D,
+                d3d11::CompilePS(device, g_PS_PassthroughRG3DI, "Blit11 3D RG I pixel shader"));
+            break;
+        case BLITSHADER_3D_RF:
+            addBlitShaderToMap(
+                blitShaderType, SHADER_3D,
+                d3d11::CompilePS(device, g_PS_PassthroughR3D, "Blit11 3D R pixel shader"));
+            break;
+        case BLITSHADER_3D_RUI:
+            addBlitShaderToMap(
+                blitShaderType, SHADER_3D,
+                d3d11::CompilePS(device, g_PS_PassthroughR3DUI, "Blit11 3D R UI pixel shader"));
+            break;
+        case BLITSHADER_3D_RI:
+            addBlitShaderToMap(
+                blitShaderType, SHADER_3D,
+                d3d11::CompilePS(device, g_PS_PassthroughR3DI, "Blit11 3D R I pixel shader"));
+            break;
+        case BLITSHADER_3D_ALPHA:
+            addBlitShaderToMap(
+                blitShaderType, SHADER_3D,
+                d3d11::CompilePS(device, g_PS_PassthroughRGBA3D, "Blit11 3D alpha pixel shader"));
+            break;
+        case BLITSHADER_3D_LUMA:
+            addBlitShaderToMap(blitShaderType, SHADER_3D,
+                               d3d11::CompilePS(device, g_PS_PassthroughLum3D,
+                                                "Blit11 3D luminance pixel shader"));
+            break;
+        case BLITSHADER_3D_LUMAALPHA:
+            addBlitShaderToMap(blitShaderType, SHADER_3D,
+                               d3d11::CompilePS(device, g_PS_PassthroughLumAlpha3D,
+                                                "Blit11 3D luminance alpha pixel shader"));
+            break;
+        default:
+            UNREACHABLE();
+            return gl::Error(GL_INVALID_OPERATION, "Internal error");
+    }
+
+    blitShaderIt = mBlitShaderMap.find(blitShaderType);
+    ASSERT(blitShaderIt != mBlitShaderMap.end());
+    *shader = &blitShaderIt->second;
+    return gl::Error(GL_NO_ERROR);
+}
+
+gl::Error Blit11::getSwizzleShader(GLenum type,
+                                   D3D11_SRV_DIMENSION viewDimension,
+                                   const Shader **shader)
+{
+    SwizzleShaderType swizzleShaderType = GetSwizzleShaderType(type, viewDimension);
+
+    if (swizzleShaderType == SWIZZLESHADER_INVALID)
+    {
+        return gl::Error(GL_INVALID_OPERATION, "Swizzle shader type not found");
+    }
+
+    auto swizzleShaderIt = mSwizzleShaderMap.find(swizzleShaderType);
+    if (swizzleShaderIt != mSwizzleShaderMap.end())
+    {
+        *shader = &swizzleShaderIt->second;
+        return gl::Error(GL_NO_ERROR);
+    }
+
+    // Swizzling shaders (OpenGL ES 3+)
+    ASSERT(mRenderer->isES3Capable());
+
+    ID3D11Device *device = mRenderer->getDevice();
+
+    switch (swizzleShaderType)
+    {
+        case SWIZZLESHADER_2D_FLOAT:
+            addSwizzleShaderToMap(
+                swizzleShaderType, SHADER_2D,
+                d3d11::CompilePS(device, g_PS_SwizzleF2D, "Blit11 2D F swizzle pixel shader"));
+            break;
+        case SWIZZLESHADER_2D_UINT:
+            addSwizzleShaderToMap(
+                swizzleShaderType, SHADER_2D,
+                d3d11::CompilePS(device, g_PS_SwizzleUI2D, "Blit11 2D UI swizzle pixel shader"));
+            break;
+        case SWIZZLESHADER_2D_INT:
+            addSwizzleShaderToMap(
+                swizzleShaderType, SHADER_2D,
+                d3d11::CompilePS(device, g_PS_SwizzleI2D, "Blit11 2D I swizzle pixel shader"));
+            break;
+        case SWIZZLESHADER_CUBE_FLOAT:
+            addSwizzleShaderToMap(swizzleShaderType, SHADER_3D,
+                                  d3d11::CompilePS(device, g_PS_SwizzleF2DArray,
+                                                   "Blit11 2D Cube F swizzle pixel shader"));
+            break;
+        case SWIZZLESHADER_CUBE_UINT:
+            addSwizzleShaderToMap(swizzleShaderType, SHADER_3D,
+                                  d3d11::CompilePS(device, g_PS_SwizzleUI2DArray,
+                                                   "Blit11 2D Cube UI swizzle pixel shader"));
+            break;
+        case SWIZZLESHADER_CUBE_INT:
+            addSwizzleShaderToMap(swizzleShaderType, SHADER_3D,
+                                  d3d11::CompilePS(device, g_PS_SwizzleI2DArray,
+                                                   "Blit11 2D Cube I swizzle pixel shader"));
+            break;
+        case SWIZZLESHADER_3D_FLOAT:
+            addSwizzleShaderToMap(
+                swizzleShaderType, SHADER_3D,
+                d3d11::CompilePS(device, g_PS_SwizzleF3D, "Blit11 3D F swizzle pixel shader"));
+            break;
+        case SWIZZLESHADER_3D_UINT:
+            addSwizzleShaderToMap(
+                swizzleShaderType, SHADER_3D,
+                d3d11::CompilePS(device, g_PS_SwizzleUI3D, "Blit11 3D UI swizzle pixel shader"));
+            break;
+        case SWIZZLESHADER_3D_INT:
+            addSwizzleShaderToMap(
+                swizzleShaderType, SHADER_3D,
+                d3d11::CompilePS(device, g_PS_SwizzleI3D, "Blit11 3D I swizzle pixel shader"));
+            break;
+        case SWIZZLESHADER_ARRAY_FLOAT:
+            addSwizzleShaderToMap(swizzleShaderType, SHADER_3D,
+                                  d3d11::CompilePS(device, g_PS_SwizzleF2DArray,
+                                                   "Blit11 2D Array F swizzle pixel shader"));
+            break;
+        case SWIZZLESHADER_ARRAY_UINT:
+            addSwizzleShaderToMap(swizzleShaderType, SHADER_3D,
+                                  d3d11::CompilePS(device, g_PS_SwizzleUI2DArray,
+                                                   "Blit11 2D Array UI swizzle pixel shader"));
+            break;
+        case SWIZZLESHADER_ARRAY_INT:
+            addSwizzleShaderToMap(swizzleShaderType, SHADER_3D,
+                                  d3d11::CompilePS(device, g_PS_SwizzleI2DArray,
+                                                   "Blit11 2D Array I swizzle pixel shader"));
+            break;
+        default:
+            UNREACHABLE();
+            return gl::Error(GL_INVALID_OPERATION, "Internal error");
+    }
+
+    swizzleShaderIt = mSwizzleShaderMap.find(swizzleShaderType);
+    ASSERT(swizzleShaderIt != mSwizzleShaderMap.end());
+    *shader = &swizzleShaderIt->second;
+    return gl::NoError();
+}
+
+gl::ErrorOrResult<TextureHelper11> Blit11::resolveDepth(RenderTarget11 *depth)
+{
+    // Multisampled depth stencil SRVs are not available in feature level 10.0
+    if (mRenderer->getRenderer11DeviceCaps().featureLevel <= D3D_FEATURE_LEVEL_10_0)
+    {
+        return gl::Error(GL_INVALID_OPERATION,
+                         "Resolving multisampled depth stencil textures is not supported in "
+                         "feature level 10.0.");
+    }
+
+    const auto &extents          = depth->getExtents();
+    ID3D11Device *device         = mRenderer->getDevice();
+    ID3D11DeviceContext *context = mRenderer->getDeviceContext();
+
+    ANGLE_TRY(initResolveDepthStencil(extents));
+
+    // Notify the Renderer that all state should be invalidated.
+    mRenderer->markAllStateDirty();
+
+    // Apply the necessary state changes to the D3D11 immediate device context.
+    context->IASetInputLayout(nullptr);
+    context->IASetPrimitiveTopology(D3D11_PRIMITIVE_TOPOLOGY_TRIANGLELIST);
+    context->VSSetShader(mResolveDepthStencilVS.resolve(device), nullptr, 0);
+    context->GSSetShader(nullptr, nullptr, 0);
+    context->RSSetState(nullptr);
+    context->OMSetDepthStencilState(nullptr, 0xFFFFFFFF);
+    context->OMSetRenderTargets(1, &mResolvedDepthStencilRTView, nullptr);
+    context->OMSetBlendState(nullptr, nullptr, 0xFFFFFFF);
+
+    // Set the viewport
+    D3D11_VIEWPORT viewport;
+    viewport.TopLeftX = 0;
+    viewport.TopLeftY = 0;
+    viewport.Width    = static_cast<FLOAT>(extents.width);
+    viewport.Height   = static_cast<FLOAT>(extents.height);
+    viewport.MinDepth = 0.0f;
+    viewport.MaxDepth = 1.0f;
+    context->RSSetViewports(1, &viewport);
+
+    ID3D11ShaderResourceView *pixelViews[] = {depth->getShaderResourceView()};
+
+    context->PSSetShaderResources(0, 1, pixelViews);
+
+    context->PSSetShader(mResolveDepthPS.resolve(device), nullptr, 0);
+
+    // Trigger the blit on the GPU.
+    context->Draw(6, 0);
+
+    gl::Box copyBox(0, 0, 0, extents.width, extents.height, 1);
+
+    const auto &copyFunction = GetCopyDepthStencilFunction(depth->getInternalFormat());
+    const auto &dsFormatSet  = depth->getFormatSet();
+    const auto &dsDxgiInfo   = d3d11::GetDXGIFormatSizeInfo(dsFormatSet.texFormat);
+
+    ID3D11Texture2D *destTex = nullptr;
+
+    D3D11_TEXTURE2D_DESC destDesc;
+    destDesc.Width              = extents.width;
+    destDesc.Height             = extents.height;
+    destDesc.MipLevels          = 1;
+    destDesc.ArraySize          = 1;
+    destDesc.Format             = dsFormatSet.texFormat;
+    destDesc.SampleDesc.Count   = 1;
+    destDesc.SampleDesc.Quality = 0;
+    destDesc.Usage              = D3D11_USAGE_DEFAULT;
+    destDesc.BindFlags          = D3D11_BIND_SHADER_RESOURCE;
+    destDesc.CPUAccessFlags     = 0;
+    destDesc.MiscFlags          = 0;
+
+    HRESULT hr = device->CreateTexture2D(&destDesc, nullptr, &destTex);
+    if (FAILED(hr))
+    {
+        return gl::Error(GL_OUT_OF_MEMORY, "Error creating depth resolve dest texture.");
+    }
+    d3d11::SetDebugName(destTex, "resolveDepthDest");
+
+    TextureHelper11 dest = TextureHelper11::MakeAndPossess2D(destTex, depth->getFormatSet());
+    ANGLE_TRY(copyAndConvert(mResolvedDepthStencil, 0, copyBox, extents, dest, 0, copyBox, extents,
+                             nullptr, 0, 0, 0, 8, dsDxgiInfo.pixelBytes, copyFunction));
+    return dest;
+}
+
+gl::Error Blit11::initResolveDepthStencil(const gl::Extents &extents)
+{
+    // Check if we need to recreate depth stencil view
+    if (mResolvedDepthStencil.valid() && extents == mResolvedDepthStencil.getExtents())
+    {
+        return gl::NoError();
+    }
+
+    if (mResolvedDepthStencil.valid())
+    {
+        releaseResolveDepthStencilResources();
+    }
+
+    const auto &formatSet = d3d11::Format::Get(GL_RG32F, mRenderer->getRenderer11DeviceCaps());
+
+    D3D11_TEXTURE2D_DESC textureDesc;
+    textureDesc.Width              = extents.width;
+    textureDesc.Height             = extents.height;
+    textureDesc.MipLevels          = 1;
+    textureDesc.ArraySize          = 1;
+    textureDesc.Format             = formatSet.texFormat;
+    textureDesc.SampleDesc.Count   = 1;
+    textureDesc.SampleDesc.Quality = 0;
+    textureDesc.Usage              = D3D11_USAGE_DEFAULT;
+    textureDesc.BindFlags          = D3D11_BIND_RENDER_TARGET;
+    textureDesc.CPUAccessFlags     = 0;
+    textureDesc.MiscFlags          = 0;
+
+    ID3D11Device *device = mRenderer->getDevice();
+
+    ID3D11Texture2D *resolvedDepthStencil = nullptr;
+    HRESULT hr = device->CreateTexture2D(&textureDesc, nullptr, &resolvedDepthStencil);
+    if (FAILED(hr))
+    {
+        return gl::Error(GL_OUT_OF_MEMORY, "Failed to allocate resolved depth stencil texture");
+    }
+    d3d11::SetDebugName(resolvedDepthStencil, "Blit11::mResolvedDepthStencil");
+
+    ASSERT(mResolvedDepthStencilRTView == nullptr);
+    hr =
+        device->CreateRenderTargetView(resolvedDepthStencil, nullptr, &mResolvedDepthStencilRTView);
+    if (FAILED(hr))
+    {
+        return gl::Error(GL_OUT_OF_MEMORY,
+                         "Failed to allocate Blit11::mResolvedDepthStencilRTView");
+    }
+    d3d11::SetDebugName(mResolvedDepthStencilRTView, "Blit11::mResolvedDepthStencilRTView");
+
+    mResolvedDepthStencil = TextureHelper11::MakeAndPossess2D(resolvedDepthStencil, formatSet);
+
+    return gl::NoError();
+}
+
+gl::ErrorOrResult<TextureHelper11> Blit11::resolveStencil(RenderTarget11 *depthStencil,
+                                                          bool alsoDepth)
+{
+    // Multisampled depth stencil SRVs are not available in feature level 10.0
+    if (mRenderer->getRenderer11DeviceCaps().featureLevel <= D3D_FEATURE_LEVEL_10_0)
+    {
+        return gl::Error(GL_INVALID_OPERATION,
+                         "Resolving multisampled depth stencil textures is not supported in "
+                         "feature level 10.0.");
+    }
+
+    const auto &extents = depthStencil->getExtents();
+
+    ANGLE_TRY(initResolveDepthStencil(extents));
+
+    ID3D11Device *device         = mRenderer->getDevice();
+    ID3D11DeviceContext *context = mRenderer->getDeviceContext();
+
+    ID3D11Resource *stencilResource = depthStencil->getTexture();
+
+    // Check if we need to re-create the stencil SRV.
+    if (mStencilSRV)
+    {
+        ID3D11Resource *priorResource = nullptr;
+        mStencilSRV->GetResource(&priorResource);
+
+        if (stencilResource != priorResource)
+        {
+            SafeRelease(mStencilSRV);
+        }
+    }
+
+    if (!mStencilSRV)
+    {
+        D3D11_SHADER_RESOURCE_VIEW_DESC srViewDesc;
+        srViewDesc.Format        = GetStencilSRVFormat(depthStencil->getFormatSet());
+        srViewDesc.ViewDimension = D3D11_SRV_DIMENSION_TEXTURE2DMS;
+
+        HRESULT hr = device->CreateShaderResourceView(stencilResource, &srViewDesc, &mStencilSRV);
+        if (FAILED(hr))
+        {
+            return gl::Error(GL_OUT_OF_MEMORY, "Error creating Blit11 stencil SRV");
+        }
+        d3d11::SetDebugName(mStencilSRV, "Blit11::mStencilSRV");
+    }
+
+    // Notify the Renderer that all state should be invalidated.
+    mRenderer->markAllStateDirty();
+
+    // Apply the necessary state changes to the D3D11 immediate device context.
+    context->IASetInputLayout(nullptr);
+    context->IASetPrimitiveTopology(D3D11_PRIMITIVE_TOPOLOGY_TRIANGLELIST);
+    context->VSSetShader(mResolveDepthStencilVS.resolve(device), nullptr, 0);
+    context->GSSetShader(nullptr, nullptr, 0);
+    context->RSSetState(nullptr);
+    context->OMSetDepthStencilState(nullptr, 0xFFFFFFFF);
+    context->OMSetRenderTargets(1, &mResolvedDepthStencilRTView, nullptr);
+    context->OMSetBlendState(nullptr, nullptr, 0xFFFFFFF);
+
+    // Set the viewport
+    D3D11_VIEWPORT viewport;
+    viewport.TopLeftX = 0;
+    viewport.TopLeftY = 0;
+    viewport.Width    = static_cast<FLOAT>(extents.width);
+    viewport.Height   = static_cast<FLOAT>(extents.height);
+    viewport.MinDepth = 0.0f;
+    viewport.MaxDepth = 1.0f;
+    context->RSSetViewports(1, &viewport);
+
+    ID3D11ShaderResourceView *pixelViews[] = {
+        depthStencil->getShaderResourceView(), mStencilSRV,
+    };
+
+    context->PSSetShaderResources(0, 2, pixelViews);
+
+    // Resolving the depth buffer works by sampling the depth in the shader using a SRV, then
+    // writing to the resolved depth buffer using SV_Depth. We can't use this method for stencil
+    // because SV_StencilRef isn't supported until HLSL 5.1/D3D11.3.
+    if (alsoDepth)
+    {
+        context->PSSetShader(mResolveDepthStencilPS.resolve(device), nullptr, 0);
+    }
+    else
+    {
+        context->PSSetShader(mResolveStencilPS.resolve(device), nullptr, 0);
+    }
+
+    // Trigger the blit on the GPU.
+    context->Draw(6, 0);
+
+    gl::Box copyBox(0, 0, 0, extents.width, extents.height, 1);
+
+    TextureHelper11 dest;
+    ANGLE_TRY_RESULT(CreateStagingTexture(GL_TEXTURE_2D, depthStencil->getFormatSet(), extents,
+                                          StagingAccess::READ_WRITE, device),
+                     dest);
+
+    const auto &copyFunction = GetCopyDepthStencilFunction(depthStencil->getInternalFormat());
+    const auto &dsFormatSet  = depthStencil->getFormatSet();
+    const auto &dsDxgiInfo   = d3d11::GetDXGIFormatSizeInfo(dsFormatSet.texFormat);
+
+    ANGLE_TRY(copyAndConvertImpl(mResolvedDepthStencil, 0, copyBox, extents, dest, copyBox, extents,
+                                 nullptr, 0, 0, 0, 8u, dsDxgiInfo.pixelBytes, copyFunction));
+
+    // Return the resolved depth texture, which the caller must Release.
+    return dest;
+}
+
+void Blit11::releaseResolveDepthStencilResources()
+{
+    SafeRelease(mStencilSRV);
+    SafeRelease(mResolvedDepthStencilRTView);
+}
+
+}  // namespace rx