1 files changed, 153 insertions, 0 deletions
diff --git a/gfx/angle/checkout/src/libANGLE/renderer/d3d/d3d9/VertexBuffer9.cpp b/gfx/angle/checkout/src/libANGLE/renderer/d3d/d3d9/VertexBuffer9.cpp
new file mode 100644
index 0000000000..915928686a
--- /dev/null
+++ b/gfx/angle/checkout/src/libANGLE/renderer/d3d/d3d9/VertexBuffer9.cpp
@@ -0,0 +1,153 @@
+//
+// Copyright 2002 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.
+//
+
+// VertexBuffer9.cpp: Defines the D3D9 VertexBuffer implementation.
+
+#include "libANGLE/renderer/d3d/d3d9/VertexBuffer9.h"
+
+#include "libANGLE/Buffer.h"
+#include "libANGLE/Context.h"
+#include "libANGLE/VertexAttribute.h"
+#include "libANGLE/renderer/d3d/BufferD3D.h"
+#include "libANGLE/renderer/d3d/d3d9/Renderer9.h"
+#include "libANGLE/renderer/d3d/d3d9/formatutils9.h"
+#include "libANGLE/renderer/d3d/d3d9/vertexconversion.h"
+
+namespace rx
+{
+
+VertexBuffer9::VertexBuffer9(Renderer9 *renderer) : mRenderer(renderer)
+{
+    mVertexBuffer = nullptr;
+    mBufferSize   = 0;
+    mDynamicUsage = false;
+}
+
+VertexBuffer9::~VertexBuffer9()
+{
+    SafeRelease(mVertexBuffer);
+}
+
+angle::Result VertexBuffer9::initialize(const gl::Context *context,
+                                        unsigned int size,
+                                        bool dynamicUsage)
+{
+    SafeRelease(mVertexBuffer);
+
+    updateSerial();
+
+    if (size > 0)
+    {
+        DWORD flags = D3DUSAGE_WRITEONLY;
+        if (dynamicUsage)
+        {
+            flags |= D3DUSAGE_DYNAMIC;
+        }
+
+        HRESULT result = mRenderer->createVertexBuffer(size, flags, &mVertexBuffer);
+        ANGLE_TRY_HR(GetImplAs<Context9>(context), result,
+                     "Failed to allocate internal vertex buffer");
+    }
+
+    mBufferSize   = size;
+    mDynamicUsage = dynamicUsage;
+    return angle::Result::Continue;
+}
+
+angle::Result VertexBuffer9::storeVertexAttributes(const gl::Context *context,
+                                                   const gl::VertexAttribute &attrib,
+                                                   const gl::VertexBinding &binding,
+                                                   gl::VertexAttribType currentValueType,
+                                                   GLint start,
+                                                   size_t count,
+                                                   GLsizei instances,
+                                                   unsigned int offset,
+                                                   const uint8_t *sourceData)
+{
+    ASSERT(mVertexBuffer);
+
+    size_t inputStride = gl::ComputeVertexAttributeStride(attrib, binding);
+    size_t elementSize = gl::ComputeVertexAttributeTypeSize(attrib);
+
+    DWORD lockFlags = mDynamicUsage ? D3DLOCK_NOOVERWRITE : 0;
+
+    uint8_t *mapPtr = nullptr;
+
+    unsigned int mapSize = 0;
+    ANGLE_TRY(
+        mRenderer->getVertexSpaceRequired(context, attrib, binding, count, instances, 0, &mapSize));
+
+    HRESULT result =
+        mVertexBuffer->Lock(offset, mapSize, reinterpret_cast<void **>(&mapPtr), lockFlags);
+    ANGLE_TRY_HR(GetImplAs<Context9>(context), result, "Failed to lock internal vertex buffer");
+
+    const uint8_t *input = sourceData;
+
+    if (instances == 0 || binding.getDivisor() == 0)
+    {
+        input += inputStride * start;
+    }
+
+    angle::FormatID vertexFormatID = gl::GetVertexFormatID(attrib, currentValueType);
+    const d3d9::VertexFormat &d3dVertexInfo =
+        d3d9::GetVertexFormatInfo(mRenderer->getCapsDeclTypes(), vertexFormatID);
+    bool needsConversion = (d3dVertexInfo.conversionType & VERTEX_CONVERT_CPU) > 0;
+
+    if (!needsConversion && inputStride == elementSize)
+    {
+        size_t copySize = count * inputStride;
+        memcpy(mapPtr, input, copySize);
+    }
+    else
+    {
+        d3dVertexInfo.copyFunction(input, inputStride, count, mapPtr);
+    }
+
+    mVertexBuffer->Unlock();
+
+    return angle::Result::Continue;
+}
+
+unsigned int VertexBuffer9::getBufferSize() const
+{
+    return mBufferSize;
+}
+
+angle::Result VertexBuffer9::setBufferSize(const gl::Context *context, unsigned int size)
+{
+    if (size > mBufferSize)
+    {
+        return initialize(context, size, mDynamicUsage);
+    }
+    else
+    {
+        return angle::Result::Continue;
+    }
+}
+
+angle::Result VertexBuffer9::discard(const gl::Context *context)
+{
+    ASSERT(mVertexBuffer);
+
+    void *mock;
+    HRESULT result;
+
+    Context9 *context9 = GetImplAs<Context9>(context);
+
+    result = mVertexBuffer->Lock(0, 1, &mock, D3DLOCK_DISCARD);
+    ANGLE_TRY_HR(context9, result, "Failed to lock internal vertex buffer for discarding");
+
+    result = mVertexBuffer->Unlock();
+    ANGLE_TRY_HR(context9, result, "Failed to unlock internal vertex buffer for discarding");
+
+    return angle::Result::Continue;
+}
+
+IDirect3DVertexBuffer9 *VertexBuffer9::getBuffer() const
+{
+    return mVertexBuffer;
+}
+}  // namespace rx