Implement support for rendering to 32-bit float textures on ES3

gpu/command_buffer/service/gles2_cmd_decoder_unittest_base.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/gles2_cmd_decoder_unittest_base.h"
 
 #include <algorithm>
 #include <string>
 #include <vector>
 
@@ skipping 123 matching lines @@
       memory_tracker_,
       feature_info.get(),
       bind_generates_resource));
   // These two workarounds are always turned on.
   group_->feature_info(
       )->workarounds_.set_texture_filter_before_generating_mipmap = true;
   group_->feature_info()->workarounds_.clear_alpha_in_readpixels = true;
 
   InSequence sequence;
 
+  surface_ = new gfx::GLSurfaceStub;
+  surface_->SetSize(gfx::Size(kBackBufferWidth, kBackBufferHeight));
+
+  // Context needs to be created before initializing ContextGroup, which will
+  // in turn initialize FeatureInfo, which needs a context to determine
+  // extension support.
+  context_ = new gfx::GLContextStubWithExtensions;
+  context_->AddExtensionsString(extensions);
+  context_->SetGLVersionString(gl_version);
+
+  context_->MakeCurrent(surface_.get());
+  gfx::GLSurface::InitializeDynamicMockBindingsForTests(context_);
+
   TestHelper::SetupContextGroupInitExpectations(gl_.get(),
-      DisallowedFeatures(), extensions);
+      DisallowedFeatures(), extensions, gl_version);
 
   // We initialize the ContextGroup with a MockGLES2Decoder so that
   // we can use the ContextGroup to figure out how the real GLES2Decoder
   // will initialize itself.
   mock_decoder_.reset(new MockGLES2Decoder());
   EXPECT_TRUE(
       group_->Initialize(mock_decoder_.get(), DisallowedFeatures()));
 
   AddExpectationsForVertexAttribManager();
 
@@ skipping 118 matching lines @@
 #endif
 
   engine_.reset(new StrictMock<MockCommandBufferEngine>());
   gpu::Buffer buffer = engine_->GetSharedMemoryBuffer(kSharedMemoryId);
   shared_memory_offset_ = kSharedMemoryOffset;
   shared_memory_address_ = reinterpret_cast<int8*>(buffer.ptr) +
       shared_memory_offset_;
   shared_memory_id_ = kSharedMemoryId;
   shared_memory_base_ = buffer.ptr;
 
-  surface_ = new gfx::GLSurfaceStub;
-  surface_->SetSize(gfx::Size(kBackBufferWidth, kBackBufferHeight));
-
-  context_ = new gfx::GLContextStubWithExtensions;
-  context_->AddExtensionsString(extensions);
-  context_->SetGLVersionString(gl_version);
-
-  context_->MakeCurrent(surface_.get());
-  gfx::GLSurface::InitializeDynamicMockBindingsForTests(context_);
-
   int32 attributes[] = {
     EGL_ALPHA_SIZE, request_alpha ? 8 : 0,
     EGL_DEPTH_SIZE, request_depth ? 24 : 0,
     EGL_STENCIL_SIZE, request_stencil ? 8 : 0,
   };
   std::vector<int32> attribs(attributes, attributes + arraysize(attributes));
 
   decoder_.reset(GLES2Decoder::Create(group_.get()));
   decoder_->GetLogger()->set_log_synthesized_gl_errors(false);
   decoder_->Initialize(surface_,
@@ skipping 523 matching lines @@
       .RetiresOnSaturation();
   EXPECT_CALL(*gl_, GetError())
       .WillOnce(Return(GL_NO_ERROR))
       .RetiresOnSaturation();
   cmds::TexImage2D cmd;
   cmd.Init(target, level, internal_format, width, height, border, format,
            type, shared_memory_id, shared_memory_offset);
   EXPECT_EQ(error::kNoError, ExecuteCmd(cmd));
 }
 
+void GLES2DecoderTestBase::DoTexImage2DConvertInternalFormat(
+    GLenum target, GLint level, GLenum call_internal_format,
+    GLsizei width, GLsizei height, GLint border,
+    GLenum format, GLenum type,
+    uint32 shared_memory_id, uint32 shared_memory_offset,
+    GLenum expected_internal_format) {
+  EXPECT_CALL(*gl_, GetError())
+      .WillOnce(Return(GL_NO_ERROR))
+      .RetiresOnSaturation();
+  EXPECT_CALL(*gl_, TexImage2D(target, level, expected_internal_format,
+                               width, height, border, format, type, _))
+      .Times(1)
+      .RetiresOnSaturation();
+  EXPECT_CALL(*gl_, GetError())
+      .WillOnce(Return(GL_NO_ERROR))
+      .RetiresOnSaturation();
+  cmds::TexImage2D cmd;
+  cmd.Init(target, level, call_internal_format, width, height, border, format,
+           type, shared_memory_id, shared_memory_offset);
+  EXPECT_EQ(error::kNoError, ExecuteCmd(cmd));
+}
+
 void GLES2DecoderTestBase::DoCompressedTexImage2D(
     GLenum target, GLint level, GLenum format,
     GLsizei width, GLsizei height, GLint border,
     GLsizei size, uint32 bucket_id) {
   EXPECT_CALL(*gl_, GetError())
       .WillOnce(Return(GL_NO_ERROR))
       .RetiresOnSaturation();
   EXPECT_CALL(*gl_, CompressedTexImage2D(
       target, level, format, width, height, border, size, _))
       .Times(1)
@@ skipping 588 matching lines @@
   SetupDefaultProgram();
 }
 
 // Include the auto-generated part of this file. We split this because it means
 // we can easily edit the non-auto generated parts right here in this file
 // instead of having to edit some template or the code generator.
 #include "gpu/command_buffer/service/gles2_cmd_decoder_unittest_0_autogen.h"
 
 }  // namespace gles2
 }  // namespace gpu