GL Implementation for GPU Discardable

gpu/command_buffer/service/gles2_cmd_decoder.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 <limits.h>
 #include <stddef.h>
 #include <stdint.h>
 #include <stdio.h>
@@ skipping 42 matching lines @@
 #include "gpu/command_buffer/service/image_factory.h"
 #include "gpu/command_buffer/service/image_manager.h"
 #include "gpu/command_buffer/service/logger.h"
 #include "gpu/command_buffer/service/mailbox_manager.h"
 #include "gpu/command_buffer/service/memory_tracking.h"
 #include "gpu/command_buffer/service/path_manager.h"
 #include "gpu/command_buffer/service/program_manager.h"
 #include "gpu/command_buffer/service/query_manager.h"
 #include "gpu/command_buffer/service/renderbuffer_manager.h"
 #include "gpu/command_buffer/service/sampler_manager.h"
+#include "gpu/command_buffer/service/service_discardable_manager.h"
 #include "gpu/command_buffer/service/shader_manager.h"
 #include "gpu/command_buffer/service/shader_translator.h"
 #include "gpu/command_buffer/service/texture_manager.h"
 #include "gpu/command_buffer/service/transform_feedback_manager.h"
 #include "gpu/command_buffer/service/vertex_array_manager.h"
 #include "gpu/command_buffer/service/vertex_attrib_manager.h"
 #include "third_party/angle/src/image_util/loadimage.h"
 #include "third_party/smhasher/src/City.h"
 #include "ui/gfx/buffer_types.h"
 #include "ui/gfx/geometry/point.h"
@@ skipping 4131 matching lines @@
         if (framebuffer_state_.bound_draw_framebuffer.get()) {
           framebuffer_state_.bound_draw_framebuffer
               ->UnbindTexture(GL_DRAW_FRAMEBUFFER_EXT, texture_ref);
         }
       } else {
         if (framebuffer_state_.bound_draw_framebuffer.get()) {
           framebuffer_state_.bound_draw_framebuffer
               ->UnbindTexture(GL_FRAMEBUFFER, texture_ref);
         }
       }
+
+      GetContextGroup()->discardable_manager()->OnTextureDeleted(client_id,
+                                                                 group_.get());
       RemoveTexture(client_id);
     }
   }
 }
 
 void GLES2DecoderImpl::DeleteSamplersHelper(GLsizei n,
                                             const volatile GLuint* client_ids) {
   for (GLsizei ii = 0; ii < n; ++ii) {
     GLuint client_id = client_ids[ii];
     Sampler* sampler = GetSampler(client_id);
@@ skipping 15345 matching lines @@
       glBindTexture(GL_TEXTURE_EXTERNAL_OES, texture_ref->service_id());
     }
   }
 
   glActiveTexture(GL_TEXTURE0 + state_.active_texture_unit);
 
   texture_manager_service_id_generation_ =
       texture_manager()->GetServiceIdGeneration();
 }
 
+error::Error GLES2DecoderImpl::HandleInitializeDiscardableTextureCHROMIUM(
+    uint32_t immediate_data_size,
+    const volatile void* cmd_data) {
+  const volatile gles2::cmds::InitializeDiscardableTextureCHROMIUM& c =
+      *static_cast<
+          const volatile gles2::cmds::InitializeDiscardableTextureCHROMIUM*>(
+          cmd_data);
+  TextureRef* texture = texture_manager()->GetTexture(c.texture_id);
+  if (!texture) {
+    LOCAL_SET_GL_ERROR(GL_INVALID_VALUE,
+                       "glInitializeDiscardableTextureCHROMIUM",
+                       "Invalid texture ID");
+    return error::kNoError;
+  }
+  size_t size = texture->texture()->estimated_size();
+  ServiceDiscardableHandle handle(GetSharedMemoryBuffer(c.shm_id), c.shm_offset,
+                                  c.shm_id);
+  GetContextGroup()->discardable_manager()->InsertLockedTexture(
+      c.texture_id, size, group_.get(), std::move(handle));
+  return error::kNoError;
+}
+
+error::Error GLES2DecoderImpl::HandleUnlockDiscardableTextureCHROMIUM(
+    uint32_t immediate_data_size,
+    const volatile void* cmd_data) {
+  const volatile gles2::cmds::UnlockDiscardableTextureCHROMIUM& c =
+      *static_cast<
+          const volatile gles2::cmds::UnlockDiscardableTextureCHROMIUM*>(
+          cmd_data);
+  if (!GetContextGroup()->discardable_manager()->UnlockTexture(c.texture_id,
+                                                               group_.get())) {
+    LOCAL_SET_GL_ERROR(GL_INVALID_VALUE, "glUnlockDiscardableTextureCHROMIUM",
+                       "Texture ID not initialized");
+  }
+  return error::kNoError;
+}
+
 // 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 "base/macros.h"
 #include "gpu/command_buffer/service/gles2_cmd_decoder_autogen.h"
 
 }  // namespace gles2
 }  // namespace gpu