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kc3-lang/angle/src/tests/gl_tests/InstancingTest.cpp
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Author :
Jamie Madill
Date : 2019-03-20 20:49:44
Hash : f455f756
Message : Reuse angle_end2end_test windows and displays. This both speeds up test execution and cuts down on the number of new windows and displays created for a test config. This feature is only currently enabled for Windows NVIDIA and Intel. On every other config there were blocking issues that would need investigation. Several tests were manually flagged as needed new displays on each iteration to prevent test flakiness. This feature might fix the issues with Intel test flakiness that have been prominent on the ANGLE CQ. WGL configurations have also been removed from ANGLE tests. So this removes more of the code from ANGLETest.cpp. Bug: angleproject:3261 Change-Id: Ic2864d4806ad38e0eeaa3c0afcd54ae1c548090f Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/1520995 Commit-Queue: Jamie Madill <jmadill@chromium.org> Reviewed-by: Yuly Novikov <ynovikov@chromium.org>
- src/tests/gl_tests/InstancingTest.cpp
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// // Copyright 2015 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. // #include "test_utils/ANGLETest.h" #include "test_utils/gl_raii.h" using namespace angle; namespace { enum Geometry { Quad, Point }; enum Storage { Buffer, Memory }; enum Draw { Indexed, NonIndexed }; enum Vendor { Angle, Ext }; } // namespace class InstancingTest : public ANGLETest { protected: InstancingTest() { setWindowWidth(256); setWindowHeight(256); setConfigRedBits(8); setConfigGreenBits(8); setConfigBlueBits(8); setConfigAlphaBits(8); } void TearDown() override { glDeleteBuffers(1, &mInstanceBuffer); glDeleteProgram(mProgram[0]); glDeleteProgram(mProgram[1]); ANGLETest::TearDown(); } void SetUp() override { ANGLETest::SetUp(); for (unsigned i = 0; i < kMaxDrawn; ++i) { mInstanceData[i] = i * kDrawSize; } glGenBuffers(1, &mInstanceBuffer); glBindBuffer(GL_ARRAY_BUFFER, mInstanceBuffer); glBufferData(GL_ARRAY_BUFFER, sizeof(mInstanceData), mInstanceData, GL_STATIC_DRAW); glBindBuffer(GL_ARRAY_BUFFER, 0); const std::string inst = "attribute float a_instance;"; const std::string pos = "attribute vec2 a_position;"; const std::string main = R"( void main() { gl_PointSize = 6.0; gl_Position = vec4(a_position.x, a_position.y + a_instance, 0, 1); } )"; // attrib 0 is instanced const std::string inst0 = inst + pos + main; mProgram[0] = CompileProgram(inst0.c_str(), essl1_shaders::fs::Red()); ASSERT_NE(0u, mProgram[0]); ASSERT_EQ(0, glGetAttribLocation(mProgram[0], "a_instance")); ASSERT_EQ(1, glGetAttribLocation(mProgram[0], "a_position")); // attrib 1 is instanced const std::string inst1 = pos + inst + main; mProgram[1] = CompileProgram(inst1.c_str(), essl1_shaders::fs::Red()); ASSERT_NE(0u, mProgram[1]); ASSERT_EQ(1, glGetAttribLocation(mProgram[1], "a_instance")); ASSERT_EQ(0, glGetAttribLocation(mProgram[1], "a_position")); glClearColor(0.0f, 0.0f, 1.0f, 1.0f); } void runTest(unsigned numInstance, unsigned divisor, const int instanceAttrib, // which attrib is instanced: 0 or 1 Geometry geometry, Draw draw, Storage storage, Vendor vendor, unsigned offset) // for NonIndexed/DrawArrays only { if (vendor == Angle) { ANGLE_SKIP_TEST_IF(!extensionEnabled("GL_ANGLE_instanced_arrays")); } else if (vendor == Ext) { ANGLE_SKIP_TEST_IF(!extensionEnabled("GL_EXT_instanced_arrays")); } // TODO: Fix these. http://anglebug.com/3129 ANGLE_SKIP_TEST_IF(IsD3D9() && draw == Indexed && geometry == Point); ANGLE_SKIP_TEST_IF(IsD3D9() && IsAMD()); // D3D11 FL9_3 has a special codepath that emulates instanced points rendering // but it has bugs and was only implemented for vertex positions in a buffer object, // not client memory as used in this test. ANGLE_SKIP_TEST_IF(IsD3D11_FL93() && geometry == Point); // Unknown problem. FL9_3 is not officially supported anyway. ANGLE_SKIP_TEST_IF(IsD3D11_FL93() && geometry == Quad && draw == NonIndexed); // The window is divided into kMaxDrawn slices of size kDrawSize. // The slice drawn into is determined by the instance datum. // The instance data array selects all the slices in order. // 'lastDrawn' is the index (zero-based) of the last slice into which we draw. const unsigned lastDrawn = (numInstance - 1) / divisor; // Ensure the numInstance and divisor parameters are valid. ASSERT_TRUE(lastDrawn < kMaxDrawn); ASSERT_TRUE(instanceAttrib == 0 || instanceAttrib == 1); const int positionAttrib = 1 - instanceAttrib; glUseProgram(mProgram[instanceAttrib]); glBindBuffer(GL_ARRAY_BUFFER, storage == Buffer ? mInstanceBuffer : 0); glVertexAttribPointer(instanceAttrib, 1, GL_FLOAT, GL_FALSE, 0, storage == Buffer ? nullptr : mInstanceData); glEnableVertexAttribArray(instanceAttrib); if (vendor == Angle) glVertexAttribDivisorANGLE(instanceAttrib, divisor); else if (vendor == Ext) glVertexAttribDivisorEXT(instanceAttrib, divisor); glBindBuffer(GL_ARRAY_BUFFER, 0); glVertexAttribPointer(positionAttrib, 2, GL_FLOAT, GL_FALSE, 0, geometry == Point ? kPointVertices : kQuadVertices); glEnableVertexAttribArray(positionAttrib); if (vendor == Angle) glVertexAttribDivisorANGLE(positionAttrib, 0); else if (vendor == Ext) glVertexAttribDivisorEXT(positionAttrib, 0); glClear(GL_COLOR_BUFFER_BIT); if (geometry == Point) { if (draw == Indexed) if (vendor == Angle) glDrawElementsInstancedANGLE(GL_POINTS, ArraySize(kPointIndices), GL_UNSIGNED_SHORT, kPointIndices, numInstance); else glDrawElementsInstancedEXT(GL_POINTS, ArraySize(kPointIndices), GL_UNSIGNED_SHORT, kPointIndices, numInstance); else if (vendor == Angle) glDrawArraysInstancedANGLE(GL_POINTS, offset, 4 /*vertices*/, numInstance); else glDrawArraysInstancedEXT(GL_POINTS, offset, 4 /*vertices*/, numInstance); } else { if (draw == Indexed) if (vendor == Angle) glDrawElementsInstancedANGLE(GL_TRIANGLES, ArraySize(kQuadIndices), GL_UNSIGNED_SHORT, kQuadIndices, numInstance); else glDrawElementsInstancedEXT(GL_TRIANGLES, ArraySize(kQuadIndices), GL_UNSIGNED_SHORT, kQuadIndices, numInstance); else if (vendor == Angle) glDrawArraysInstancedANGLE(GL_TRIANGLES, offset, 6 /*vertices*/, numInstance); else glDrawArraysInstancedEXT(GL_TRIANGLES, offset, 6 /*vertices*/, numInstance); } ASSERT_GL_NO_ERROR(); checkDrawing(lastDrawn); } void checkDrawing(unsigned lastDrawn) { for (unsigned i = 0; i < kMaxDrawn; ++i) { float y = -1.0f + static_cast<float>(kDrawSize) / 2.0f + static_cast<float>(i * kDrawSize); int iy = static_cast<int>((y + 1.0f) / 2.0f * getWindowHeight()); for (unsigned j = 0; j < 8; j += 2) { int ix = static_cast<int>((kPointVertices[j] + 1.0f) / 2.0f * getWindowWidth()); EXPECT_PIXEL_COLOR_EQ(ix, iy, i <= lastDrawn ? GLColor::red : GLColor::blue) << std::endl; } } } GLuint mProgram[2]; GLuint mInstanceBuffer; static constexpr unsigned kMaxDrawn = 16; static constexpr float kDrawSize = 2.0 / kMaxDrawn; GLfloat mInstanceData[kMaxDrawn]; // clang-format off // Vertices 0-5 are two triangles that form a quad filling the first "slice" of the window. // See above about slices. Vertices 4-9 are the same two triangles. static constexpr GLfloat kQuadVertices[] = { -1, -1, 1, -1, -1, -1 + kDrawSize, 1, -1, 1, -1 + kDrawSize, -1, -1 + kDrawSize, 1, -1, 1, -1, -1, -1 + kDrawSize, -1, -1, }; // Points 0-3 are spread across the first "slice." // Points 2-4 are the same. static constexpr GLfloat kPointVertices[] = { -0.6f, -1 + kDrawSize / 2.0, -0.2f, -1 + kDrawSize / 2.0, 0.2f, -1 + kDrawSize / 2.0, 0.6f, -1 + kDrawSize / 2.0, -0.2f, -1 + kDrawSize / 2.0, -0.6f, -1 + kDrawSize / 2.0, }; // clang-format on // Same two triangles as described above. static constexpr GLushort kQuadIndices[] = {2, 9, 7, 5, 6, 4}; // Same four points as described above. static constexpr GLushort kPointIndices[] = {1, 5, 3, 2}; }; constexpr unsigned InstancingTest::kMaxDrawn; constexpr float InstancingTest::kDrawSize; constexpr GLfloat InstancingTest::kQuadVertices[]; constexpr GLfloat InstancingTest::kPointVertices[]; constexpr GLushort InstancingTest::kQuadIndices[]; constexpr GLushort InstancingTest::kPointIndices[]; #define TEST_INDEXED(attrib, geometry, storage, vendor) \ TEST_P(InstancingTest, IndexedAttrib##attrib##geometry##storage##vendor) \ { \ runTest(11, 2, attrib, geometry, Indexed, storage, vendor, 0); \ } #define TEST_NONINDEXED(attrib, geometry, storage, vendor, offset) \ TEST_P(InstancingTest, NonIndexedAttrib##attrib##geometry##storage##vendor##Offset##offset) \ { \ runTest(11, 2, attrib, geometry, NonIndexed, storage, vendor, offset); \ } #define TEST_DIVISOR(numInstance, divisor) \ TEST_P(InstancingTest, Instances##numInstance##Divisor##divisor) \ { \ runTest(numInstance, divisor, 1, Quad, NonIndexed, Buffer, Angle, 0); \ } // D3D9 and D3D11 FL9_3, have a special codepath that rearranges the input layout sent to D3D, // to ensure that slot/stream zero of the input layout doesn't contain per-instance data, so // we test with attribute 0 being instanced, as will as attribute 1 being instanced. // // Tests with a non-zero 'offset' check that "first" parameter to glDrawArraysInstancedANGLE is only // an offset into the non-instanced vertex attributes. TEST_INDEXED(0, Quad, Buffer, Angle) TEST_INDEXED(0, Quad, Memory, Angle) TEST_INDEXED(1, Quad, Buffer, Angle) TEST_INDEXED(1, Quad, Memory, Angle) TEST_INDEXED(0, Point, Buffer, Angle) TEST_INDEXED(0, Point, Memory, Angle) TEST_INDEXED(1, Point, Buffer, Angle) TEST_INDEXED(1, Point, Memory, Angle) TEST_INDEXED(0, Quad, Buffer, Ext) TEST_INDEXED(0, Quad, Memory, Ext) TEST_INDEXED(1, Quad, Buffer, Ext) TEST_INDEXED(1, Quad, Memory, Ext) TEST_INDEXED(0, Point, Buffer, Ext) TEST_INDEXED(0, Point, Memory, Ext) TEST_INDEXED(1, Point, Buffer, Ext) TEST_INDEXED(1, Point, Memory, Ext) // offset should be 0 or 4 for quads TEST_NONINDEXED(0, Quad, Buffer, Angle, 0) TEST_NONINDEXED(0, Quad, Buffer, Angle, 4) TEST_NONINDEXED(0, Quad, Memory, Angle, 0) TEST_NONINDEXED(0, Quad, Memory, Angle, 4) TEST_NONINDEXED(1, Quad, Buffer, Angle, 0) TEST_NONINDEXED(1, Quad, Buffer, Angle, 4) TEST_NONINDEXED(1, Quad, Memory, Angle, 0) TEST_NONINDEXED(1, Quad, Memory, Angle, 4) TEST_NONINDEXED(0, Quad, Buffer, Ext, 0) TEST_NONINDEXED(0, Quad, Buffer, Ext, 4) TEST_NONINDEXED(0, Quad, Memory, Ext, 0) TEST_NONINDEXED(0, Quad, Memory, Ext, 4) TEST_NONINDEXED(1, Quad, Buffer, Ext, 0) TEST_NONINDEXED(1, Quad, Buffer, Ext, 4) TEST_NONINDEXED(1, Quad, Memory, Ext, 0) TEST_NONINDEXED(1, Quad, Memory, Ext, 4) // offset should be 0 or 2 for points TEST_NONINDEXED(0, Point, Buffer, Angle, 0) TEST_NONINDEXED(0, Point, Buffer, Angle, 2) TEST_NONINDEXED(0, Point, Memory, Angle, 0) TEST_NONINDEXED(0, Point, Memory, Angle, 2) TEST_NONINDEXED(1, Point, Buffer, Angle, 0) TEST_NONINDEXED(1, Point, Buffer, Angle, 2) TEST_NONINDEXED(1, Point, Memory, Angle, 0) TEST_NONINDEXED(1, Point, Memory, Angle, 2) TEST_NONINDEXED(0, Point, Buffer, Ext, 0) TEST_NONINDEXED(0, Point, Buffer, Ext, 2) TEST_NONINDEXED(0, Point, Memory, Ext, 0) TEST_NONINDEXED(0, Point, Memory, Ext, 2) TEST_NONINDEXED(1, Point, Buffer, Ext, 0) TEST_NONINDEXED(1, Point, Buffer, Ext, 2) TEST_NONINDEXED(1, Point, Memory, Ext, 0) TEST_NONINDEXED(1, Point, Memory, Ext, 2) // The following tests produce each value of 'lastDrawn' in runTest() from 1 to kMaxDrawn, a few // different ways. TEST_DIVISOR(1, 1) TEST_DIVISOR(1, 2) TEST_DIVISOR(2, 1) TEST_DIVISOR(3, 1) TEST_DIVISOR(3, 2) TEST_DIVISOR(4, 1) TEST_DIVISOR(5, 1) TEST_DIVISOR(5, 2) TEST_DIVISOR(6, 1) TEST_DIVISOR(6, 2) TEST_DIVISOR(7, 1) TEST_DIVISOR(7, 2) TEST_DIVISOR(8, 1) TEST_DIVISOR(8, 2) TEST_DIVISOR(8, 4) TEST_DIVISOR(9, 1) TEST_DIVISOR(9, 2) TEST_DIVISOR(10, 1) TEST_DIVISOR(11, 1) TEST_DIVISOR(11, 2) TEST_DIVISOR(12, 1) TEST_DIVISOR(12, 11) TEST_DIVISOR(13, 1) TEST_DIVISOR(13, 2) TEST_DIVISOR(14, 1) TEST_DIVISOR(15, 1) TEST_DIVISOR(15, 2) TEST_DIVISOR(16, 1) TEST_DIVISOR(16, 3) TEST_DIVISOR(16, 7) TEST_DIVISOR(17, 2) TEST_DIVISOR(20, 2) TEST_DIVISOR(21, 2) TEST_DIVISOR(23, 2) TEST_DIVISOR(25, 5) TEST_DIVISOR(25, 33) TEST_DIVISOR(26, 2) TEST_DIVISOR(26, 3) TEST_DIVISOR(27, 2) TEST_DIVISOR(27, 4) TEST_DIVISOR(28, 3) TEST_DIVISOR(29, 2) TEST_DIVISOR(29, 11) TEST_DIVISOR(30, 4) TEST_DIVISOR(31, 6) TEST_DIVISOR(32, 2) TEST_DIVISOR(32, 3) TEST_DIVISOR(32, 8) TEST_DIVISOR(34, 3) TEST_DIVISOR(34, 30) class InstancingTestES3 : public InstancingTest { public: InstancingTestES3() {} }; class InstancingTestES31 : public InstancingTest { public: InstancingTestES31() {} }; // Verify that VertexAttribDivisor can update both binding divisor and attribBinding. TEST_P(InstancingTestES31, UpdateAttribBindingByVertexAttribDivisor) { ANGLE_SKIP_TEST_IF(!extensionEnabled("GL_ANGLE_instanced_arrays")); glUseProgram(mProgram[0]); // Get the attribute locations GLint positionLoc = glGetAttribLocation(mProgram[0], "a_position"); GLint instancePosLoc = glGetAttribLocation(mProgram[0], "a_instance"); ASSERT_NE(-1, positionLoc); ASSERT_NE(-1, instancePosLoc); ASSERT_GL_NO_ERROR(); GLuint vao; glGenVertexArrays(1, &vao); glBindVertexArray(vao); GLBuffer quadBuffer; glBindBuffer(GL_ARRAY_BUFFER, quadBuffer); glBufferData(GL_ARRAY_BUFFER, sizeof(kQuadVertices), kQuadVertices, GL_STATIC_DRAW); const unsigned numInstance = 4; const unsigned divisor = 1; const unsigned lastDrawn = (numInstance - 1) / divisor; // Ensure the numInstance and divisor parameters are valid. ASSERT_TRUE(lastDrawn < kMaxDrawn); // Set the formats by VertexAttribFormat glVertexAttribFormat(positionLoc, 2, GL_FLOAT, GL_FALSE, 0); glVertexAttribFormat(instancePosLoc, 1, GL_FLOAT, GL_FALSE, 0); glEnableVertexAttribArray(positionLoc); glEnableVertexAttribArray(instancePosLoc); const GLint positionBinding = instancePosLoc; const GLint instanceBinding = positionLoc; // Load the vertex position into the binding indexed positionBinding (== instancePosLoc) // Load the instance position into the binding indexed instanceBinding (== positionLoc) glBindVertexBuffer(positionBinding, quadBuffer, 0, 2 * sizeof(kQuadVertices[0])); glBindVertexBuffer(instanceBinding, mInstanceBuffer, 0, sizeof(mInstanceData[0])); // The attribute indexed positionLoc is using the binding indexed positionBinding // The attribute indexed instancePosLoc is using the binding indexed instanceBinding glVertexAttribBinding(positionLoc, positionBinding); glVertexAttribBinding(instancePosLoc, instanceBinding); // Enable instancing on the binding indexed instanceBinding glVertexBindingDivisor(instanceBinding, divisor); // Do the first instanced draw glClear(GL_COLOR_BUFFER_BIT); glDrawElementsInstanced(GL_TRIANGLES, ArraySize(kQuadIndices), GL_UNSIGNED_SHORT, kQuadIndices, numInstance); checkDrawing(lastDrawn); // Disable instancing. glVertexBindingDivisor(instanceBinding, 0); // Load the vertex position into the binding indexed positionLoc. // Load the instance position into the binding indexed instancePosLoc. glBindVertexBuffer(positionLoc, quadBuffer, 0, 2 * sizeof(kQuadVertices[0])); glBindVertexBuffer(instancePosLoc, mInstanceBuffer, 0, sizeof(mInstanceData[0])); // The attribute indexed positionLoc is using the binding indexed positionLoc. glVertexAttribBinding(positionLoc, positionLoc); // Call VertexAttribDivisor to both enable instancing on instancePosLoc and set the attribute // indexed instancePosLoc using the binding indexed instancePosLoc. glVertexAttribDivisor(instancePosLoc, divisor); // Do the second instanced draw glClear(GL_COLOR_BUFFER_BIT); glDrawElementsInstanced(GL_TRIANGLES, ArraySize(kQuadIndices), GL_UNSIGNED_SHORT, kQuadIndices, numInstance); checkDrawing(lastDrawn); glDeleteVertexArrays(1, &vao); } // Verify that a large divisor that also changes doesn't cause issues and renders correctly. TEST_P(InstancingTestES3, LargeDivisor) { constexpr char kVS[] = R"(#version 300 es layout(location = 0) in vec4 a_position; layout(location = 1) in vec4 a_color; out vec4 v_color; void main() { gl_Position = a_position; gl_PointSize = 4.0f; v_color = a_color; })"; constexpr char kFS[] = R"(#version 300 es precision highp float; in vec4 v_color; out vec4 my_FragColor; void main() { my_FragColor = v_color; })"; ANGLE_GL_PROGRAM(program, kVS, kFS); glUseProgram(program); glClearColor(0.0f, 0.0f, 1.0f, 1.0f); GLBuffer buf; glBindBuffer(GL_ARRAY_BUFFER, buf); std::vector<GLfloat> vertices; for (size_t i = 0u; i < 4u; ++i) { vertices.push_back(0.0f + i * 0.25f); vertices.push_back(0.0f); vertices.push_back(0.0f); vertices.push_back(1.0f); } glBufferData(GL_ARRAY_BUFFER, vertices.size() * 4u, vertices.data(), GL_DYNAMIC_DRAW); glEnableVertexAttribArray(0); glVertexAttribPointer(0, 4, GL_FLOAT, false, 0, nullptr); ASSERT_GL_NO_ERROR(); GLBuffer colorBuf; glBindBuffer(GL_ARRAY_BUFFER, colorBuf); std::array<GLColor, 4> ubyteColors = {GLColor::red, GLColor::green}; std::vector<float> floatColors; for (const GLColor &color : ubyteColors) { floatColors.push_back(color.R / 255.0f); floatColors.push_back(color.G / 255.0f); floatColors.push_back(color.B / 255.0f); floatColors.push_back(color.A / 255.0f); } glBufferData(GL_ARRAY_BUFFER, floatColors.size() * 4u, floatColors.data(), GL_DYNAMIC_DRAW); const GLuint kColorDivisor = 65536u * 2u; glEnableVertexAttribArray(1); glVertexAttribPointer(1, 4, GL_FLOAT, false, 0, nullptr); glVertexAttribDivisor(1, kColorDivisor); std::array<GLuint, 1u> indices = {0u}; std::array<GLuint, 3u> divisorsToTry = {256u, 65536u, 65536u * 2u}; for (GLuint divisorToTry : divisorsToTry) { glClear(GL_COLOR_BUFFER_BIT); glVertexAttribDivisor(0, divisorToTry); GLuint instanceCount = divisorToTry + 1u; unsigned int pointsRendered = (instanceCount - 1u) / divisorToTry + 1u; glDrawElementsInstanced(GL_POINTS, indices.size(), GL_UNSIGNED_INT, indices.data(), instanceCount); ASSERT_GL_NO_ERROR(); // Check that the intended number of points has been rendered. for (unsigned int pointIndex = 0u; pointIndex < pointsRendered + 1u; ++pointIndex) { GLint pointx = static_cast<GLint>((pointIndex * 0.125f + 0.5f) * getWindowWidth()); GLint pointy = static_cast<GLint>(0.5f * getWindowHeight()); if (pointIndex < pointsRendered) { GLuint pointColorIndex = (pointIndex * divisorToTry) / kColorDivisor; EXPECT_PIXEL_COLOR_EQ(pointx, pointy, ubyteColors[pointColorIndex]); } else { // Clear color. EXPECT_PIXEL_COLOR_EQ(pointx, pointy, GLColor::blue); } } } } // This is a regression test. If VertexAttribDivisor was returned as a signed integer, it would be // incorrectly clamped down to the maximum signed integer. TEST_P(InstancingTestES3, LargestDivisor) { constexpr GLuint kLargeDivisor = std::numeric_limits<GLuint>::max(); glVertexAttribDivisor(0, kLargeDivisor); GLuint divisor = 0; glGetVertexAttribIuiv(0, GL_VERTEX_ATTRIB_ARRAY_DIVISOR, &divisor); EXPECT_EQ(kLargeDivisor, divisor) << "Vertex attrib divisor read was not the same that was passed in."; } ANGLE_INSTANTIATE_TEST(InstancingTestES3, ES3_OPENGL(), ES3_OPENGLES(), ES3_D3D11()); ANGLE_INSTANTIATE_TEST(InstancingTestES31, ES31_OPENGL(), ES31_OPENGLES(), ES31_D3D11()); ANGLE_INSTANTIATE_TEST(InstancingTest, ES2_D3D9(), ES2_D3D11(), ES2_D3D11_FL9_3(), ES2_OPENGL(3, 0), ES2_OPENGL(), ES2_OPENGLES(), ES2_VULKAN());