Fix WebGL 2 texture renderability check.

gpu/command_buffer/service/texture_manager_unittest.cc

 // Copyright (c) 2012 The Chromium 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 "gpu/command_buffer/service/texture_manager.h"
 
 #include <utility>
 
 #include "base/command_line.h"
 #include "base/memory/scoped_ptr.h"
@@ skipping 666 matching lines @@
   manager_->SetLevelInfo(texture_ref_.get(), GL_TEXTURE_2D, 3, GL_RGBA, 4, 4, 1,
                          0, GL_RGBA, GL_UNSIGNED_BYTE, gfx::Rect(4, 4));
   EXPECT_TRUE(manager_->CanGenerateMipmaps(texture_ref_.get()));
   // Make mips.
   EXPECT_TRUE(manager_->MarkMipmapsGenerated(texture_ref_.get()));
   EXPECT_TRUE(manager_->CanRender(texture_ref_.get()));
   EXPECT_TRUE(TextureTestHelper::IsTextureComplete(texture));
   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);
   manager_->SetLevelInfo(texture_ref_.get(), GL_TEXTURE_2D, 0, GL_RGBA, 4, 4, 1,
                          0, GL_RGBA, GL_UNSIGNED_BYTE, gfx::Rect(4, 4));
   EXPECT_MEMORY_ALLOCATION_CHANGE(64, 0);
   EXPECT_MEMORY_ALLOCATION_CHANGE(0, 84);
   EXPECT_TRUE(manager_->MarkMipmapsGenerated(texture_ref_.get()));
   EXPECT_MEMORY_ALLOCATION_CHANGE(84, 0);
   EXPECT_MEMORY_ALLOCATION_CHANGE(0, 0);
@@ skipping 1626 matching lines @@
   ExpectValid(GL_DEPTH_COMPONENT, GL_FLOAT, GL_DEPTH_COMPONENT32F);
   ExpectValid(GL_DEPTH_STENCIL, GL_UNSIGNED_INT_24_8, GL_DEPTH24_STENCIL8);
   ExpectValid(GL_DEPTH_STENCIL, GL_FLOAT_32_UNSIGNED_INT_24_8_REV,
               GL_DEPTH32F_STENCIL8);
 
   ExpectInvalid(GL_RGB_INTEGER, GL_INT, GL_RGBA8);
 }
 
 }  // namespace gles2
 }  // namespace gpu