commit 89be29a5cdff6fc8ece7fa1284553f64a05048b7
author Jiawei Shao <jiawei.shao@intel.com> Mon Nov 06 14:36:45 2017 +0800
committer Commit Bot <commit-bot@chromium.org> Wed Nov 22 05:14:29 2017 +0000
tree 8fec209c9ce3e5eaa9c920742b4622d4fcbef855
parent 6e94c455c0589dd822bce754b7400adafc27bcb0

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>

src/libANGLE/Compiler.cpp

diff --git a/src/libANGLE/Compiler.cpp b/src/libANGLE/Compiler.cpp
index 3baa75c..236c7e1 100644
--- a/src/libANGLE/Compiler.cpp
+++ b/src/libANGLE/Compiler.cpp
@@ -50,7 +50,8 @@
       mResources(),
       mFragmentCompiler(nullptr),
       mVertexCompiler(nullptr),
-      mComputeCompiler(nullptr)
+      mComputeCompiler(nullptr),
+      mGeometryCompiler(nullptr)
 {
     ASSERT(state.getClientMajorVersion() == 2 || state.getClientMajorVersion() == 3);
 
@@ -129,6 +130,12 @@
     {
         mResources.MaxDrawBuffers = 1;
     }
+
+    // Geometry Shader constants
+    mResources.OES_geometry_shader = extensions.geometryShader;
+    // TODO(jiawei.shao@intel.com): initialize all implementation dependent geometry shader limits.
+    mResources.MaxGeometryOutputVertices    = extensions.maxGeometryOutputVertices;
+    mResources.MaxGeometryShaderInvocations = extensions.maxGeometryShaderInvocations;
 }
 
 Compiler::~Compiler()
@@ -183,6 +190,9 @@
         case GL_COMPUTE_SHADER:
             compiler = &mComputeCompiler;
             break;
+        case GL_GEOMETRY_SHADER_EXT:
+            compiler = &mGeometryCompiler;
+            break;
         default:
             UNREACHABLE();
             return nullptr;