1 //
2 // Copyright 2015 The ANGLE Project Authors. All rights reserved.
3 // Use of this source code is governed by a BSD-style license that can be
4 // found in the LICENSE file.
5 //
6 // D3D11EmulatedIndexedBufferTest:
7 // Tests to validate our D3D11 support for emulating an indexed
8 // vertex buffer.
9 //
10
11 #include "libANGLE/angletypes.h"
12 #include "libANGLE/Context.h"
13 #include "libANGLE/renderer/d3d/d3d11/Buffer11.h"
14 #include "libANGLE/renderer/d3d/d3d11/Context11.h"
15 #include "libANGLE/renderer/d3d/d3d11/Renderer11.h"
16 #include "libANGLE/renderer/d3d/IndexDataManager.h"
17 #include "test_utils/ANGLETest.h"
18 #include "test_utils/angle_test_instantiate.h"
19
20 using namespace angle;
21
22 namespace
23 {
24
25 class D3D11EmulatedIndexedBufferTest : public ANGLETest
26 {
27 protected:
28
SetUp()29 void SetUp() override
30 {
31 ANGLETest::SetUp();
32 ASSERT_EQ(EGL_PLATFORM_ANGLE_TYPE_D3D11_ANGLE, GetParam().getRenderer());
33
34 gl::Context *context = reinterpret_cast<gl::Context *>(getEGLWindow()->getContext());
35 rx::Context11 *context11 = rx::GetImplAs<rx::Context11>(context);
36 mRenderer = context11->getRenderer();
37
38 mSourceBuffer = new rx::Buffer11(mBufferState, mRenderer);
39 GLfloat testData[] = { 1.0f, 2.0f, 3.0f, 4.0f, 5.0f, 6.0f };
40 gl::Error error =
41 mSourceBuffer->setData(GL_ARRAY_BUFFER, testData, sizeof(testData), GL_STATIC_DRAW);
42 ASSERT_FALSE(error.isError());
43
44 mTranslatedAttribute.baseOffset = 0;
45 mTranslatedAttribute.usesFirstVertexOffset = false;
46 mTranslatedAttribute.stride = sizeof(GLfloat);
47
48 GLubyte indices[] = {0, 0, 3, 4, 2, 1, 1};
49
50 for (size_t i = 0; i < ArraySize(indices); i++)
51 {
52 mExpectedExpandedData.push_back(testData[indices[i]]);
53 mubyteIndices.push_back(indices[i]);
54 muintIndices.push_back(indices[i]);
55 mushortIndices.push_back(indices[i]);
56 }
57 }
58
TearDown()59 void TearDown() override
60 {
61 SafeDelete(mSourceBuffer);
62 ANGLETest::TearDown();
63 }
64
createMappableCompareBufferFromEmulatedBuffer(ID3D11Buffer * sourceBuffer,GLuint size,ID3D11Buffer ** mappableBuffer)65 void createMappableCompareBufferFromEmulatedBuffer(ID3D11Buffer *sourceBuffer, GLuint size, ID3D11Buffer **mappableBuffer)
66 {
67 *mappableBuffer = nullptr;
68
69 D3D11_BUFFER_DESC bufferDesc;
70 bufferDesc.ByteWidth = size;
71 bufferDesc.MiscFlags = 0;
72 bufferDesc.StructureByteStride = 0;
73 bufferDesc.Usage = D3D11_USAGE_STAGING;
74 bufferDesc.BindFlags = 0;
75 bufferDesc.CPUAccessFlags = D3D11_CPU_ACCESS_READ | D3D11_CPU_ACCESS_WRITE;
76
77 HRESULT hr = mRenderer->getDevice()->CreateBuffer(&bufferDesc, nullptr, mappableBuffer);
78 ASSERT_TRUE(SUCCEEDED(hr));
79
80 D3D11_BOX srcBox;
81 srcBox.left = 0;
82 srcBox.right = size;
83 srcBox.top = 0;
84 srcBox.bottom = 1;
85 srcBox.front = 0;
86 srcBox.back = 1;
87
88 mRenderer->getDeviceContext()->CopySubresourceRegion(*mappableBuffer, 0, 0, 0, 0, sourceBuffer, 0, &srcBox);
89 }
90
compareContents(ID3D11Buffer * actual)91 void compareContents(ID3D11Buffer *actual)
92 {
93 ID3D11Buffer *compareBuffer = nullptr;
94 createMappableCompareBufferFromEmulatedBuffer(
95 actual, sizeof(GLfloat) * static_cast<GLuint>(mExpectedExpandedData.size()),
96 &compareBuffer);
97
98 D3D11_MAPPED_SUBRESOURCE mappedResource;
99 HRESULT hr = mRenderer->getDeviceContext()->Map(compareBuffer, 0, D3D11_MAP_READ, 0, &mappedResource);
100 ASSERT_TRUE(SUCCEEDED(hr));
101
102 GLfloat* compareData = static_cast<GLfloat*>(mappedResource.pData);
103 for (size_t i = 0; i < mExpectedExpandedData.size(); i++)
104 {
105 EXPECT_EQ(mExpectedExpandedData[i], compareData[i]);
106 }
107
108 mRenderer->getDeviceContext()->Unmap(compareBuffer, 0);
109 SafeRelease(compareBuffer);
110 }
111
emulateAndCompare(rx::SourceIndexData * srcData)112 void emulateAndCompare(rx::SourceIndexData *srcData)
113 {
114 auto bufferOrError =
115 mSourceBuffer->getEmulatedIndexedBuffer(srcData, mTranslatedAttribute, 0);
116 ASSERT_FALSE(bufferOrError.isError());
117 ID3D11Buffer *emulatedBuffer = bufferOrError.getResult();
118 ASSERT_TRUE(emulatedBuffer != nullptr);
119 compareContents(emulatedBuffer);
120 }
121
122 protected:
123 rx::Buffer11 *mSourceBuffer;
124 rx::Renderer11 *mRenderer;
125 rx::TranslatedAttribute mTranslatedAttribute;
126 std::vector<GLfloat> mExpectedExpandedData;
127 std::vector<GLubyte> mubyteIndices;
128 std::vector<GLuint> muintIndices;
129 std::vector<GLushort> mushortIndices;
130 gl::BufferState mBufferState;
131 };
132
133 // This tests that a GL_UNSIGNED_BYTE indices list can be successfully expanded
134 // into a valid emulated indexed buffer.
TEST_P(D3D11EmulatedIndexedBufferTest,TestNativeToExpandedUsingGLubyteIndices)135 TEST_P(D3D11EmulatedIndexedBufferTest, TestNativeToExpandedUsingGLubyteIndices)
136 {
137 rx::SourceIndexData srcData = {nullptr, mubyteIndices.data(),
138 static_cast<unsigned int>(mubyteIndices.size()),
139 GL_UNSIGNED_BYTE, false};
140 emulateAndCompare(&srcData);
141 }
142
143 // This tests that a GL_UNSIGNED_SHORT indices list can be successfully expanded
144 // into a valid emulated indexed buffer.
TEST_P(D3D11EmulatedIndexedBufferTest,TestNativeToExpandedUsingGLushortIndices)145 TEST_P(D3D11EmulatedIndexedBufferTest, TestNativeToExpandedUsingGLushortIndices)
146 {
147 rx::SourceIndexData srcData = {nullptr, mushortIndices.data(),
148 static_cast<unsigned int>(mushortIndices.size()),
149 GL_UNSIGNED_SHORT, false};
150 emulateAndCompare(&srcData);
151 }
152
153 // This tests that a GL_UNSIGNED_INT indices list can be successfully expanded
154 // into a valid emulated indexed buffer.
TEST_P(D3D11EmulatedIndexedBufferTest,TestNativeToExpandedUsingGLuintIndices)155 TEST_P(D3D11EmulatedIndexedBufferTest, TestNativeToExpandedUsingGLuintIndices)
156 {
157 rx::SourceIndexData srcData = {nullptr, muintIndices.data(),
158 static_cast<unsigned int>(muintIndices.size()), GL_UNSIGNED_INT,
159 false};
160 emulateAndCompare(&srcData);
161 }
162
163 // This tests verifies that a Buffer11 contents remain unchanged after calling getEmulatedIndexedBuffer
TEST_P(D3D11EmulatedIndexedBufferTest,TestSourceBufferRemainsUntouchedAfterExpandOperation)164 TEST_P(D3D11EmulatedIndexedBufferTest, TestSourceBufferRemainsUntouchedAfterExpandOperation)
165 {
166 // Copy the original source buffer before any expand calls have been made
167 gl::BufferState cleanSourceState;
168 rx::Buffer11 *cleanSourceBuffer = new rx::Buffer11(cleanSourceState, mRenderer);
169 cleanSourceBuffer->copySubData(mSourceBuffer, 0, 0, mSourceBuffer->getSize());
170
171 // Do a basic exanded and compare test.
172 rx::SourceIndexData srcData = {nullptr, muintIndices.data(),
173 static_cast<unsigned int>(muintIndices.size()), GL_UNSIGNED_INT,
174 false};
175 emulateAndCompare(&srcData);
176
177 const uint8_t *sourceBufferMem = nullptr;
178 const uint8_t *cleanBufferMem = nullptr;
179
180 gl::Error error = mSourceBuffer->getData(&sourceBufferMem);
181 ASSERT_FALSE(error.isError());
182
183 error = cleanSourceBuffer->getData(&cleanBufferMem);
184 ASSERT_FALSE(error.isError());
185
186 int result = memcmp(sourceBufferMem, cleanBufferMem, cleanSourceBuffer->getSize());
187 ASSERT_EQ(result, 0);
188
189 SafeDelete(cleanSourceBuffer);
190 }
191
192 ANGLE_INSTANTIATE_TEST(D3D11EmulatedIndexedBufferTest,
193 ES2_D3D11());
194
195 } // anonymous namespace
196