Revert 175152

ui/surface/accelerated_surface_transformer_win.cc

Index: ui/surface/accelerated_surface_transformer_win.cc
===================================================================
--- ui/surface/accelerated_surface_transformer_win.cc	(revision 175160)
+++ ui/surface/accelerated_surface_transformer_win.cc	(working copy)
@@ -1,261 +0,0 @@
-// 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 "ui/surface/accelerated_surface_transformer_win.h"
-
-#include <vector>
-
-#include "accelerated_surface_transformer_win_hlsl_compiled.h"
-#include "base/debug/trace_event.h"
-#include "base/memory/ref_counted.h"
-#include "base/single_thread_task_runner.h"
-#include "base/synchronization/lock.h"
-#include "base/synchronization/waitable_event.h"
-#include "base/win/scoped_comptr.h"
-#include "ui/gfx/native_widget_types.h"
-#include "ui/gfx/rect.h"
-#include "ui/gfx/size.h"
-#include "ui/surface/d3d9_utils_win.h"
-#include "ui/surface/surface_export.h"
-
-using base::win::ScopedComPtr;
-using std::vector;
-
-namespace d3d_utils = ui_surface_d3d9_utils;
-
-namespace {
-
-struct Vertex {
-  float x, y, z, w;
-  float u, v;
-};
-
-const static D3DVERTEXELEMENT9 g_vertexElements[] = {
-  { 0, 0, D3DDECLTYPE_FLOAT4, 0, D3DDECLUSAGE_POSITION, 0 },
-  { 0, 16, D3DDECLTYPE_FLOAT2, 0, D3DDECLUSAGE_TEXCOORD, 0 },
-  D3DDECL_END()
-};
-
-// Calculate the number necessary to transform |src_subrect| into |dst_size|
-// by repeating downsampling of the image of |src_subrect| by a factor no more
-// than 2.
-int GetResampleCount(const gfx::Rect& src_subrect,
-                     const gfx::Size& dst_size,
-                     const gfx::Size& back_buffer_size) {
-  // At least one copy is required, since the back buffer itself is not
-  // lockable.
-  int min_resample_count = 1;
-  int width_count = 0;
-  int width = src_subrect.width();
-  while (width > dst_size.width()) {
-    ++width_count;
-    width >>= 1;
-  }
-  int height_count = 0;
-  int height = src_subrect.height();
-  while (height > dst_size.height()) {
-    ++height_count;
-    height >>= 1;
-  }
-  return std::max(std::max(width_count, height_count),
-                  min_resample_count);
-}
-
-// Returns half the size of |size| no smaller than |min_size|.
-gfx::Size GetHalfSizeNoLessThan(const gfx::Size& size,
-                                const gfx::Size& min_size) {
-  return gfx::Size(std::max(min_size.width(), size.width() / 2),
-                   std::max(min_size.height(), size.height() / 2));
-}
-
-gfx::Size GetSize(IDirect3DSurface9* surface) {
-  D3DSURFACE_DESC surface_description;
-  HRESULT hr = surface->GetDesc(&surface_description);
-  if (FAILED(hr))
-    return gfx::Size(0, 0);
-  return gfx::Size(surface_description.Width, surface_description.Height);
-}
-
-}  // namespace
-
-
-AcceleratedSurfaceTransformer::AcceleratedSurfaceTransformer() {}
-
-bool AcceleratedSurfaceTransformer::Init(IDirect3DDevice9* device) {
-  device_ = device;
-  if (!InitShaderCombo(
-          ui_surface::AcceleratedSurfaceTransformerWinHLSL::kVsOneTexture,
-          ui_surface::AcceleratedSurfaceTransformerWinHLSL::kPsOneTexture,
-          SIMPLE_TEXTURE)) {
-    ReleaseAll();
-    return false;
-  }
-
-  base::win::ScopedComPtr<IDirect3DVertexDeclaration9> vertex_declaration;
-  HRESULT hr = device_->CreateVertexDeclaration(g_vertexElements,
-                                                vertex_declaration.Receive());
-  if (!SUCCEEDED(hr)) {
-    ReleaseAll();
-    return false;
-  }
-  device_->SetVertexDeclaration(vertex_declaration);
-
-  return true;
-}
-
-bool AcceleratedSurfaceTransformer::InitShaderCombo(
-    const BYTE vertex_shader_instructions[],
-    const BYTE pixel_shader_instructions[],
-    ShaderCombo shader_combo_name) {
-  HRESULT hr = device_->CreateVertexShader(
-      reinterpret_cast<const DWORD*>(vertex_shader_instructions),
-      vertex_shaders_[shader_combo_name].Receive());
-
-  if (FAILED(hr))
-    return false;
-
-  hr = device_->CreatePixelShader(
-      reinterpret_cast<const DWORD*>(pixel_shader_instructions),
-      pixel_shaders_[shader_combo_name].Receive());
-
-  return SUCCEEDED(hr);
-}
-
-
-void AcceleratedSurfaceTransformer::ReleaseAll() {
-  for (int i = 0; i < NUM_SHADERS; i++) {
-    vertex_shaders_[i] = NULL;
-    vertex_shaders_[i] = NULL;
-  }
-  device_ = NULL;
-}
-void AcceleratedSurfaceTransformer::DetachAll() {
-  for (int i = 0; i < NUM_SHADERS; i++) {
-    vertex_shaders_[i].Detach();
-    vertex_shaders_[i].Detach();
-  }
-  device_.Detach();
-}
-
-// Draw a textured quad to a surface.
-bool AcceleratedSurfaceTransformer::CopyInverted(
-    IDirect3DTexture9* src_texture,
-    IDirect3DSurface9* dst_surface,
-    const gfx::Size& dst_size) {
-  base::win::ScopedComPtr<IDirect3DSurface9> default_color_target;
-  device()->GetRenderTarget(0, default_color_target.Receive());
-
-  if (!SetShaderCombo(SIMPLE_TEXTURE))
-    return false;
-
-  device()->SetRenderTarget(0, dst_surface);
-  device()->SetTexture(0, src_texture);
-
-  D3DVIEWPORT9 viewport = {
-    0, 0,
-    dst_size.width(), dst_size.height(),
-    0, 1
-  };
-  device()->SetViewport(&viewport);
-
-  float halfPixelX = -1.0f / dst_size.width();
-  float halfPixelY = 1.0f / dst_size.height();
-  Vertex vertices[] = {
-    { halfPixelX - 1, halfPixelY + 1, 0.5f, 1, 0, 1 },
-    { halfPixelX + 1, halfPixelY + 1, 0.5f, 1, 1, 1 },
-    { halfPixelX + 1, halfPixelY - 1, 0.5f, 1, 1, 0 },
-    { halfPixelX - 1, halfPixelY - 1, 0.5f, 1, 0, 0 }
-  };
-
-  device()->BeginScene();
-  device()->DrawPrimitiveUP(D3DPT_TRIANGLEFAN,
-                            2,
-                            vertices,
-                            sizeof(vertices[0]));
-  device()->EndScene();
-
-  // Clear surface references.
-  device()->SetRenderTarget(0, default_color_target);
-  device()->SetTexture(0, NULL);
-  return true;
-}
-
-// Resize an RGB surface using repeated linear interpolation.
-bool AcceleratedSurfaceTransformer::ResizeBilinear(
-    IDirect3DSurface9* src_surface,
-    const gfx::Rect& src_subrect,
-    IDirect3DSurface9* dst_surface) {
-  gfx::Size src_size = GetSize(src_surface);
-  gfx::Size dst_size = GetSize(dst_surface);
-
-  if (src_size.IsEmpty() || dst_size.IsEmpty())
-    return false;
-
-  HRESULT hr = S_OK;
-  // Set up intermediate buffers needed for downsampling.
-  const int resample_count =
-      GetResampleCount(src_subrect, dst_size, src_size);
-  base::win::ScopedComPtr<IDirect3DSurface9> temp_buffer[2];
-  const gfx::Size half_size =
-      GetHalfSizeNoLessThan(src_subrect.size(), dst_size);
-  if (resample_count > 1) {
-    TRACE_EVENT0("gpu", "CreateTemporarySurface");
-    if (!d3d_utils::CreateTemporaryLockableSurface(device(),
-                                                   half_size,
-                                                   temp_buffer[0].Receive()))
-      return false;
-  }
-  if (resample_count > 2) {
-    TRACE_EVENT0("gpu", "CreateTemporarySurface");
-    const gfx::Size quarter_size = GetHalfSizeNoLessThan(half_size, dst_size);
-    if (!d3d_utils::CreateTemporaryLockableSurface(device(),
-                                                   quarter_size,
-                                                   temp_buffer[1].Receive()))
-      return false;
-  }
-
-  // Repeat downsampling the surface until its size becomes identical to
-  // |dst_size|. We keep the factor of each downsampling no more than two
-  // because using a factor more than two can introduce aliasing.
-  RECT read_rect = src_subrect.ToRECT();
-  gfx::Size write_size = half_size;
-  int read_buffer_index = 1;
-  int write_buffer_index = 0;
-  for (int i = 0; i < resample_count; ++i) {
-    TRACE_EVENT0("gpu", "StretchRect");
-    IDirect3DSurface9* read_buffer =
-        (i == 0) ? src_surface : temp_buffer[read_buffer_index];
-    IDirect3DSurface9* write_buffer =
-        (i == resample_count - 1) ? dst_surface :
-                                    temp_buffer[write_buffer_index];
-    RECT write_rect = gfx::Rect(write_size).ToRECT();
-    hr = device()->StretchRect(read_buffer,
-                               &read_rect,
-                               write_buffer,
-                               &write_rect,
-                               D3DTEXF_LINEAR);
-
-    if (FAILED(hr))
-      return false;
-    read_rect = write_rect;
-    write_size = GetHalfSizeNoLessThan(write_size, dst_size);
-    std::swap(read_buffer_index, write_buffer_index);
-  }
-
-  return true;
-}
-
-IDirect3DDevice9* AcceleratedSurfaceTransformer::device() {
-  return device_;
-}
-
-bool AcceleratedSurfaceTransformer::SetShaderCombo(ShaderCombo combo) {
-  HRESULT hr = device()->SetVertexShader(vertex_shaders_[combo]);
-  if (!SUCCEEDED(hr))
-    return false;
-  hr = device()->SetPixelShader(pixel_shaders_[combo]);
-  if (!SUCCEEDED(hr))
-    return false;
-  return true;
-}