gpu: Change Produce/ConsumeTexture to allow texture sharing

gpu/command_buffer/service/gles2_cmd_decoder_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/gles2_cmd_decoder.h"
 
 #include "base/atomicops.h"
 #include "gpu/command_buffer/common/gles2_cmd_format.h"
 #include "gpu/command_buffer/common/gles2_cmd_utils.h"
 #include "gpu/command_buffer/common/id_allocator.h"
@@ skipping 5953 matching lines @@
   EXPECT_EQ(GL_NO_ERROR, GetGLError());
 
   GLbyte mailbox[GL_MAILBOX_SIZE_CHROMIUM];
   group().mailbox_manager()->GenerateMailboxName(
       reinterpret_cast<MailboxName*>(mailbox));
 
   memcpy(shared_memory_address_, mailbox, sizeof(mailbox));
 
   EXPECT_EQ(kServiceTextureId, texture_ref->service_id());
 
-  // Assigns and binds new service side texture ID.
-  EXPECT_CALL(*gl_, GenTextures(1, _))
-      .WillOnce(SetArgumentPointee<1>(kNewServiceId))
-      .RetiresOnSaturation();
-  EXPECT_CALL(*gl_, BindTexture(GL_TEXTURE_EXTERNAL_OES, kNewServiceId))
-      .Times(1)
-      .RetiresOnSaturation();
-
   ProduceTextureCHROMIUM produce_cmd;
   produce_cmd.Init(
       GL_TEXTURE_EXTERNAL_OES, kSharedMemoryId, kSharedMemoryOffset);
   EXPECT_EQ(error::kNoError, ExecuteCmd(produce_cmd));
   EXPECT_EQ(GL_NO_ERROR, GetGLError());
 
+  // Create new texture for consume.
+  EXPECT_CALL(*gl_, GenTextures(_, _))
+      .WillOnce(SetArgumentPointee<1>(kNewServiceId))
+      .RetiresOnSaturation();
+  DoBindTexture(GL_TEXTURE_EXTERNAL_OES, kNewClientId, kNewServiceId);
+
   // Assigns and binds original service size texture ID.
   EXPECT_CALL(*gl_, DeleteTextures(1, _))
       .Times(1)
       .RetiresOnSaturation();
   EXPECT_CALL(*gl_, BindTexture(GL_TEXTURE_EXTERNAL_OES, kServiceTextureId))
       .Times(1)
       .RetiresOnSaturation();
 
-  // TextureManager::Restore will set TexParameters.
-  EXPECT_CALL(*gl_, TexParameteri(
-      GL_TEXTURE_EXTERNAL_OES, GL_TEXTURE_MIN_FILTER, GL_LINEAR))
-      .Times(1)
-      .RetiresOnSaturation();
-  EXPECT_CALL(*gl_, TexParameteri(
-      GL_TEXTURE_EXTERNAL_OES, GL_TEXTURE_MAG_FILTER, GL_LINEAR))
-      .Times(1)
-      .RetiresOnSaturation();
-  EXPECT_CALL(*gl_, TexParameteri(
-      GL_TEXTURE_EXTERNAL_OES, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE))
-      .Times(1)
-      .RetiresOnSaturation();
-  EXPECT_CALL(*gl_, TexParameteri(
-      GL_TEXTURE_EXTERNAL_OES, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE))
-      .Times(1)
-      .RetiresOnSaturation();
-  #if 0
-  EXPECT_CALL(*gl_, TexParameteri(
-      GL_TEXTURE_2D, GL_TEXTURE_USAGE_ANGLE, GL_NONE))
-      .Times(1)
-      .RetiresOnSaturation();
-  #endif
-
   // Shared mem got clobbered from GetError() above.
   memcpy(shared_memory_address_, mailbox, sizeof(mailbox));
   ConsumeTextureCHROMIUM consume_cmd;
   consume_cmd.Init(
       GL_TEXTURE_EXTERNAL_OES, kSharedMemoryId, kSharedMemoryOffset);
   EXPECT_EQ(error::kNoError, ExecuteCmd(consume_cmd));
   EXPECT_EQ(GL_NO_ERROR, GetGLError());
 
   // Service ID is restored.
   EXPECT_EQ(kServiceTextureId, texture_ref->service_id());
@@ skipping 1368 matching lines @@
   DoTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, 3, 1, 0, GL_RGBA, GL_UNSIGNED_BYTE,
                0, 0);
   DoTexImage2D(GL_TEXTURE_2D, 1, GL_RGBA, 2, 4, 0, GL_RGBA, GL_UNSIGNED_BYTE,
                0, 0);
   TextureRef* texture_ref = group().texture_manager()->GetTexture(
       client_texture_id_);
   ASSERT_TRUE(texture_ref != NULL);
   Texture* texture = texture_ref->texture();
   EXPECT_EQ(kServiceTextureId, texture->service_id());
 
-  // Assigns and binds new service side texture ID.
-  EXPECT_CALL(*gl_, GenTextures(1, _))
-      .WillOnce(SetArgumentPointee<1>(kNewServiceId))
-      .RetiresOnSaturation();
-  EXPECT_CALL(*gl_, BindTexture(GL_TEXTURE_2D, kNewServiceId))
-      .Times(1)
-      .RetiresOnSaturation();
-
   ProduceTextureCHROMIUM produce_cmd;
   produce_cmd.Init(GL_TEXTURE_2D, kSharedMemoryId, kSharedMemoryOffset);
   EXPECT_EQ(error::kNoError, ExecuteCmd(produce_cmd));
+  EXPECT_EQ(GL_NO_ERROR, GetGLError());
 
-  // Texture is zero-by-zero.
+  // Texture didn't change.
   GLsizei width;
   GLsizei height;
   GLenum type;
   GLenum internal_format;
 
   EXPECT_TRUE(texture->GetLevelSize(GL_TEXTURE_2D, 0, &width, &height));
-  EXPECT_EQ(0, width);
-  EXPECT_EQ(0, height);
+  EXPECT_EQ(3, width);
+  EXPECT_EQ(1, height);
   EXPECT_TRUE(texture->GetLevelType(GL_TEXTURE_2D, 0, &type, &internal_format));
   EXPECT_EQ(static_cast<GLenum>(GL_RGBA), internal_format);
   EXPECT_EQ(static_cast<GLenum>(GL_UNSIGNED_BYTE), type);
 
   EXPECT_TRUE(texture->GetLevelSize(GL_TEXTURE_2D, 1, &width, &height));
-  EXPECT_EQ(0, width);
-  EXPECT_EQ(0, height);
+  EXPECT_EQ(2, width);
+  EXPECT_EQ(4, height);
   EXPECT_TRUE(texture->GetLevelType(GL_TEXTURE_2D, 1, &type, &internal_format));
   EXPECT_EQ(static_cast<GLenum>(GL_RGBA), internal_format);
   EXPECT_EQ(static_cast<GLenum>(GL_UNSIGNED_BYTE), type);
 
-  // Service ID has changed.
-  EXPECT_EQ(kNewServiceId, texture->service_id());
+  // Service ID has not changed.
+  EXPECT_EQ(kServiceTextureId, texture->service_id());
+
+  // Create new texture for consume.
+  EXPECT_CALL(*gl_, GenTextures(_, _))
+      .WillOnce(SetArgumentPointee<1>(kNewServiceId))
+      .RetiresOnSaturation();
+  DoBindTexture(GL_TEXTURE_2D, kNewClientId, kNewServiceId);
 
   // Assigns and binds original service size texture ID.
   EXPECT_CALL(*gl_, DeleteTextures(1, _))
       .Times(1)
       .RetiresOnSaturation();
   EXPECT_CALL(*gl_, BindTexture(GL_TEXTURE_2D, kServiceTextureId))
       .Times(1)
       .RetiresOnSaturation();
 
-  // TextureManager::Restore will set TexParameters.
-  EXPECT_CALL(*gl_, TexParameteri(
-      GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST_MIPMAP_LINEAR))
-      .Times(1)
-      .RetiresOnSaturation();
-  EXPECT_CALL(*gl_, TexParameteri(
-      GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR))
-      .Times(1)
-      .RetiresOnSaturation();
-  EXPECT_CALL(*gl_, TexParameteri(
-      GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT))
-      .Times(1)
-      .RetiresOnSaturation();
-  EXPECT_CALL(*gl_, TexParameteri(
-      GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT))
-      .Times(1)
-      .RetiresOnSaturation();
-  #if 0
-  EXPECT_CALL(*gl_, TexParameteri(
-      GL_TEXTURE_2D, GL_TEXTURE_USAGE_ANGLE, GL_NONE))
-      .Times(1)
-      .RetiresOnSaturation();
-  #endif
-
+  memcpy(shared_memory_address_, mailbox, sizeof(mailbox));
   ConsumeTextureCHROMIUM consume_cmd;
   consume_cmd.Init(GL_TEXTURE_2D, kSharedMemoryId, kSharedMemoryOffset);
   EXPECT_EQ(error::kNoError, ExecuteCmd(consume_cmd));
+  EXPECT_EQ(GL_NO_ERROR, GetGLError());
 
   // Texture is redefined.
   EXPECT_TRUE(texture->GetLevelSize(GL_TEXTURE_2D, 0, &width, &height));
   EXPECT_EQ(3, width);
   EXPECT_EQ(1, height);
   EXPECT_TRUE(texture->GetLevelType(GL_TEXTURE_2D, 0, &type, &internal_format));
   EXPECT_EQ(static_cast<GLenum>(GL_RGBA), internal_format);
   EXPECT_EQ(static_cast<GLenum>(GL_UNSIGNED_BYTE), type);
 
   EXPECT_TRUE(texture->GetLevelSize(GL_TEXTURE_2D, 1, &width, &height));
@@ skipping 1153 matching lines @@
 // TODO(gman): TexImage2DImmediate
 
 // TODO(gman): TexSubImage2DImmediate
 
 // TODO(gman): UseProgram
 
 // TODO(gman): SwapBuffers
 
 }  // namespace gles2
 }  // namespace gpu