Fix WebGL 2 texture renderability check.

gpu/command_buffer/service/texture_manager_unittest.cc

Index: gpu/command_buffer/service/texture_manager_unittest.cc
diff --git a/gpu/command_buffer/service/texture_manager_unittest.cc b/gpu/command_buffer/service/texture_manager_unittest.cc
index 90e90c447ee29f92d3b12ff2558cae406565a24e..b2b40552df7c8f5a24a564152b383c5241ec2305 100644
--- a/gpu/command_buffer/service/texture_manager_unittest.cc
+++ b/gpu/command_buffer/service/texture_manager_unittest.cc
@@ -684,6 +684,55 @@ TEST_F(TextureTest, POT2D) {
   EXPECT_FALSE(manager_->HaveUnrenderableTextures());
 }
 
+TEST_F(TextureTest, BaseLevel) {
+  manager_->SetTarget(texture_ref_.get(), GL_TEXTURE_2D);
+  Texture* texture = texture_ref_->texture();
+  EXPECT_EQ(static_cast<GLenum>(GL_TEXTURE_2D), texture->target());
+  // Check Setting level 1 to POT
+  manager_->SetLevelInfo(texture_ref_.get(), GL_TEXTURE_2D, 1, GL_RGBA, 4, 4, 1,
+                         0, GL_RGBA, GL_UNSIGNED_BYTE, gfx::Rect(4, 4));
+  SetParameter(
+      texture_ref_.get(), GL_TEXTURE_MIN_FILTER, GL_LINEAR, GL_NO_ERROR);
+  EXPECT_FALSE(manager_->CanRender(texture_ref_.get()));
+  EXPECT_TRUE(manager_->HaveUnrenderableTextures());
+  SetParameter(
+      texture_ref_.get(), GL_TEXTURE_BASE_LEVEL, 1, GL_NO_ERROR);
+  EXPECT_TRUE(manager_->CanRender(texture_ref_.get()));
+  EXPECT_FALSE(manager_->HaveUnrenderableTextures());
+}
+
+TEST_F(TextureTest, BaseLevelMaxLevel) {
+  manager_->SetTarget(texture_ref_.get(), GL_TEXTURE_2D);
+  Texture* texture = texture_ref_->texture();
+  EXPECT_EQ(static_cast<GLenum>(GL_TEXTURE_2D), texture->target());
+  // Set up level 2, 3, 4.
+  manager_->SetLevelInfo(texture_ref_.get(), GL_TEXTURE_2D, 2, GL_RGBA, 8, 8, 1,
+                         0, GL_RGBA, GL_UNSIGNED_BYTE, gfx::Rect(8, 8));
+  manager_->SetLevelInfo(texture_ref_.get(), GL_TEXTURE_2D, 3, GL_RGBA, 4, 4, 1,
+                         0, GL_RGBA, GL_UNSIGNED_BYTE, gfx::Rect(4, 4));
+  manager_->SetLevelInfo(texture_ref_.get(), GL_TEXTURE_2D, 4, GL_RGBA, 2, 2, 1,
+                         0, GL_RGBA, GL_UNSIGNED_BYTE, gfx::Rect(2, 2));
+  SetParameter(
+      texture_ref_.get(), GL_TEXTURE_MIN_FILTER, GL_LINEAR_MIPMAP_LINEAR,
+      GL_NO_ERROR);
+  SetParameter(
+      texture_ref_.get(), GL_TEXTURE_MAG_FILTER, GL_LINEAR, GL_NO_ERROR);
+  EXPECT_FALSE(manager_->CanRender(texture_ref_.get()));
+  EXPECT_TRUE(manager_->HaveUnrenderableTextures());
+  SetParameter(
+      texture_ref_.get(), GL_TEXTURE_BASE_LEVEL, 2, GL_NO_ERROR);
+  EXPECT_FALSE(manager_->CanRender(texture_ref_.get()));
+  EXPECT_TRUE(manager_->HaveUnrenderableTextures());
+  SetParameter(
+      texture_ref_.get(), GL_TEXTURE_MAX_LEVEL, 4, GL_NO_ERROR);
+  EXPECT_TRUE(manager_->CanRender(texture_ref_.get()));
+  EXPECT_FALSE(manager_->HaveUnrenderableTextures());
+  SetParameter(
+      texture_ref_.get(), GL_TEXTURE_BASE_LEVEL, 0, GL_NO_ERROR);
+  EXPECT_FALSE(manager_->CanRender(texture_ref_.get()));
+  EXPECT_TRUE(manager_->HaveUnrenderableTextures());
+}
+
 TEST_F(TextureMemoryTrackerTest, MarkMipmapsGenerated) {
   manager_->SetTarget(texture_ref_.get(), GL_TEXTURE_2D);
   EXPECT_MEMORY_ALLOCATION_CHANGE(0, 64);