Merge r249547 into M33: Add a gpu driver bug workaround to count in all varyings in packing check.

gpu/command_buffer/service/program_manager_unittest.cc

Index: gpu/command_buffer/service/program_manager_unittest.cc
===================================================================
--- gpu/command_buffer/service/program_manager_unittest.cc	(revision 250202)
+++ gpu/command_buffer/service/program_manager_unittest.cc	(working copy)
@@ -250,7 +250,8 @@
 
     program_->AttachShader(&shader_manager_, vertex_shader);
     program_->AttachShader(&shader_manager_, fragment_shader);
-    program_->Link(NULL, NULL, NULL, base::Bind(&ShaderCacheCb));
+    program_->Link(NULL, NULL, NULL, Program::kCountOnlyStaticallyUsed,
+                   base::Bind(&ShaderCacheCb));
   }
 
   void SetupShader(AttribInfo* attribs, size_t num_attribs,
@@ -283,7 +284,8 @@
       SetupShader(kAttribs, kNumAttribs, kUniforms, kNumUniforms,
                   service_id);
     }
-    program->Link(NULL, NULL, NULL, base::Bind(&ShaderCacheCb));
+    program->Link(NULL, NULL, NULL, Program::kCountOnlyStaticallyUsed,
+                  base::Bind(&ShaderCacheCb));
     GLint link_status;
     program->GetProgramiv(GL_LINK_STATUS, &link_status);
     return (static_cast<bool>(link_status) == expected_link_status);
@@ -720,7 +722,8 @@
   ASSERT_TRUE(program != NULL);
   EXPECT_TRUE(program->AttachShader(&shader_manager_, vshader));
   EXPECT_TRUE(program->AttachShader(&shader_manager_, fshader));
-  program->Link(NULL, NULL, NULL, base::Bind(&ShaderCacheCb));
+  program->Link(NULL, NULL, NULL, Program::kCountOnlyStaticallyUsed,
+                base::Bind(&ShaderCacheCb));
   GLint value = 0;
   program->GetProgramiv(GL_ACTIVE_ATTRIBUTES, &value);
   EXPECT_EQ(3, value);
@@ -788,7 +791,8 @@
   ASSERT_TRUE(program != NULL);
   EXPECT_TRUE(program->AttachShader(&shader_manager_, vshader));
   EXPECT_TRUE(program->AttachShader(&shader_manager_, fshader));
-  program->Link(NULL, NULL, NULL, base::Bind(&ShaderCacheCb));
+  program->Link(NULL, NULL, NULL, Program::kCountOnlyStaticallyUsed,
+                base::Bind(&ShaderCacheCb));
 
   // Check that we get the correct locations.
   EXPECT_EQ(kUniform2FakeLocation,
@@ -889,7 +893,8 @@
   ASSERT_TRUE(program!= NULL);
   EXPECT_TRUE(program->AttachShader(&shader_manager_, vshader));
   EXPECT_TRUE(program->AttachShader(&shader_manager_, fshader));
-  program->Link(NULL, NULL, NULL, base::Bind(&ShaderCacheCb));
+  program->Link(NULL, NULL, NULL, Program::kCountOnlyStaticallyUsed,
+                base::Bind(&ShaderCacheCb));
   // Check that we got the good type, not the bad.
   // Check Attribs
   for (unsigned index = 0; index < kNumAttribs; ++index) {
@@ -1354,7 +1359,8 @@
   Program* program = SetupShaderVariableTest(
       kVertexVaryings, 2, kFragmentVaryings, 2);
 
-  EXPECT_FALSE(program->CheckVaryingsPacking());
+  EXPECT_FALSE(
+      program->CheckVaryingsPacking(Program::kCountOnlyStaticallyUsed));
   EXPECT_TRUE(LinkAsExpected(program, false));
 }
 
@@ -1371,10 +1377,28 @@
   Program* program = SetupShaderVariableTest(
       kVertexVaryings, 2, kFragmentVaryings, 2);
 
-  EXPECT_TRUE(program->CheckVaryingsPacking());
+  EXPECT_TRUE(
+      program->CheckVaryingsPacking(Program::kCountOnlyStaticallyUsed));
   EXPECT_TRUE(LinkAsExpected(program, true));
 }
 
+// Varyings go over 8 rows but some are inactive.
+// However, we still fail the check if kCountAll option is used.
+TEST_F(ProgramManagerWithShaderTest, CountAllVaryingsInPacking) {
+  const VarInfo kVertexVaryings[] = {
+      { SH_FLOAT_VEC4, 4, SH_PRECISION_MEDIUMP, 1, "a", kVarVarying },
+      { SH_FLOAT_VEC4, 5, SH_PRECISION_MEDIUMP, 1, "b", kVarVarying }
+  };
+  const VarInfo kFragmentVaryings[] = {
+      { SH_FLOAT_VEC4, 4, SH_PRECISION_MEDIUMP, 0, "a", kVarVarying },
+      { SH_FLOAT_VEC4, 5, SH_PRECISION_MEDIUMP, 1, "b", kVarVarying }
+  };
+  Program* program = SetupShaderVariableTest(
+      kVertexVaryings, 2, kFragmentVaryings, 2);
+
+  EXPECT_FALSE(program->CheckVaryingsPacking(Program::kCountAll));
+}
+
 TEST_F(ProgramManagerWithShaderTest, ClearWithSamplerTypes) {
   const GLuint kVShaderClientId = 2001;
   const GLuint kFShaderClientId = 2002;
@@ -1440,7 +1464,8 @@
     const size_t kNumUniforms = arraysize(kUniforms);
     SetupShader(kAttribs, kNumAttribs, kUniforms, kNumUniforms,
                 kServiceProgramId);
-    program->Link(NULL, NULL, NULL, base::Bind(&ShaderCacheCb));
+    program->Link(NULL, NULL, NULL, Program::kCountOnlyStaticallyUsed,
+                  base::Bind(&ShaderCacheCb));
     SetupExpectationsForClearingUniforms(kUniforms, kNumUniforms);
     manager_.ClearUniforms(program);
   }
@@ -1512,7 +1537,8 @@
   const size_t kNumUniforms = arraysize(kUniforms);
   SetupShader(kAttribs, kNumAttribs, kUniforms, kNumUniforms,
               kServiceProgramId);
-  program->Link(NULL, NULL, NULL, base::Bind(&ShaderCacheCb));
+  program->Link(NULL, NULL, NULL, Program::kCountOnlyStaticallyUsed,
+                base::Bind(&ShaderCacheCb));
 
   EXPECT_EQ(kUniform1DesiredLocation,
             program->GetUniformFakeLocation(kUniform1Name));
@@ -1736,7 +1762,7 @@
   SetExpectationsForProgramLink();
   SetExpectationsForProgramCached();
   EXPECT_TRUE(program_->Link(NULL, NULL, NULL,
-                             base::Bind(&ShaderCacheCb)));
+      Program::kCountOnlyStaticallyUsed, base::Bind(&ShaderCacheCb)));
 }
 
 TEST_F(ProgramManagerWithCacheTest, LoadProgramOnProgramCacheHit) {
@@ -1750,7 +1776,7 @@
   SetExpectationsForProgramLoadSuccess();
 
   EXPECT_TRUE(program_->Link(NULL, NULL, NULL,
-                             base::Bind(&ShaderCacheCb)));
+      Program::kCountOnlyStaticallyUsed, base::Bind(&ShaderCacheCb)));
 }
 
 }  // namespace gles2