ES31: Implement creation and attaching geometry shader on OpenGL
This patch intends to implement the creation of a geometry shader
and attaching a geometry shader to a program on OpenGL back-ends.
This patch also adds all geometry shader related dEQP-GLES31 test
failures to deqp_gles31_test_expectations.txt.
BUG=angleproject:1941
TEST=angle_end2end_tests
Change-Id: Ib0b497030255b15dacd967e48bc59eef0009af46
Reviewed-on: https://chromium-review.googlesource.com/757979
Commit-Queue: Jamie Madill <jmadill@chromium.org>
Reviewed-by: Jamie Madill <jmadill@chromium.org>
diff --git a/src/tests/gl_tests/GeometryShaderTest.cpp b/src/tests/gl_tests/GeometryShaderTest.cpp
new file mode 100644
index 0000000..62bf205
--- /dev/null
+++ b/src/tests/gl_tests/GeometryShaderTest.cpp
@@ -0,0 +1,74 @@
+//
+// Copyright 2017 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.
+//
+
+// GeometryShaderTest.cpp : Tests of the implementation of geometry shader
+
+#include "test_utils/ANGLETest.h"
+
+using namespace angle;
+
+namespace
+{
+
+class GeometryShaderTest : public ANGLETest
+{
+};
+
+class GeometryShaderTestES3 : public ANGLETest
+{
+};
+
+// Verify that Geometry Shader cannot be created in an OpenGL ES 3.0 context.
+TEST_P(GeometryShaderTestES3, CreateGeometryShaderInES3)
+{
+ EXPECT_TRUE(!extensionEnabled("GL_EXT_geometry_shader"));
+ GLuint geometryShader = glCreateShader(GL_GEOMETRY_SHADER_EXT);
+ EXPECT_EQ(0u, geometryShader);
+ EXPECT_GL_ERROR(GL_INVALID_ENUM);
+}
+
+// Verify that Geometry Shader can be created and attached to a program.
+TEST_P(GeometryShaderTest, CreateAndAttachGeometryShader)
+{
+ ANGLE_SKIP_TEST_IF(!extensionEnabled("GL_EXT_geometry_shader"));
+
+ const std::string &geometryShaderSource =
+ R"(#version 310 es
+ #extension GL_EXT_geometry_shader : require
+ layout (invocations = 3, triangles) in;
+ layout (triangle_strip, max_vertices = 3) out;
+ in vec4 texcoord[];
+ out vec4 o_texcoord;
+ void main()
+ {
+ int n;
+ for (n = 0; n < gl_in.length(); n++)
+ {
+ gl_Position = gl_in[n].gl_Position;
+ gl_Layer = gl_InvocationID;
+ o_texcoord = texcoord[n];
+ EmitVertex();
+ }
+ EndPrimitive();
+ })";
+
+ GLuint geometryShader = CompileShader(GL_GEOMETRY_SHADER_EXT, geometryShaderSource);
+
+ EXPECT_NE(0u, geometryShader);
+
+ GLuint programID = glCreateProgram();
+ glAttachShader(programID, geometryShader);
+
+ glDetachShader(programID, geometryShader);
+ glDeleteShader(geometryShader);
+ glDeleteProgram(programID);
+
+ EXPECT_GL_NO_ERROR();
+}
+
+ANGLE_INSTANTIATE_TEST(GeometryShaderTestES3, ES3_OPENGL(), ES3_OPENGLES(), ES3_D3D11());
+ANGLE_INSTANTIATE_TEST(GeometryShaderTest, ES31_OPENGL(), ES31_OPENGLES(), ES31_D3D11());
+}