The Tor Browser: gfx/angle/src/libGLESv2/renderer/SwapChain9.cpp@129ffea94266 (annotated)

gfx/angle/src/libGLESv2/renderer/SwapChain9.cpp@129ffea94266 (annotated)

gfx/angle/src/libGLESv2/renderer/SwapChain9.cpp

Sat, 03 Jan 2015 20:18:00 +0100

author: Michael Schloh von Bennewitz <michael@schloh.com>
date: Sat, 03 Jan 2015 20:18:00 +0100
branch: TOR_BUG_3246
changeset 7: 129ffea94266
permissions: -rw-r--r--

Conditionally enable double key logic according to:
private browsing mode or privacy.thirdparty.isolate preference and
implement in GetCookieStringCommon and FindCookie where it counts...
With some reservations of how to convince FindCookie users to test
condition and pass a nullptr when disabling double key logic.

 #include "precompiled.h"
 //
 // Copyright (c) 2012-2013 The ANGLE Project Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 //
 // SwapChain9.cpp: Implements a back-end specific class for the D3D9 swap chain.
 #include "libGLESv2/renderer/SwapChain9.h"
 #include "libGLESv2/renderer/renderer9_utils.h"
 #include "libGLESv2/renderer/Renderer9.h"
 namespace rx
 {
 SwapChain9::SwapChain9(Renderer9 *renderer, HWND window, HANDLE shareHandle,
                        GLenum backBufferFormat, GLenum depthBufferFormat)
     : mRenderer(renderer), SwapChain(window, shareHandle, backBufferFormat, depthBufferFormat)
 {
     mSwapChain = NULL;
     mBackBuffer = NULL;
     mDepthStencil = NULL;
     mRenderTarget = NULL;
     mOffscreenTexture = NULL;
     mWidth = -1;
     mHeight = -1;
     mSwapInterval = -1;
 }
 SwapChain9::~SwapChain9()
 {
     release();
 }
 void SwapChain9::release()
 {
     if (mSwapChain)
     {
         mSwapChain->Release();
         mSwapChain = NULL;
     }
     if (mBackBuffer)
     {
         mBackBuffer->Release();
         mBackBuffer = NULL;
     }
     if (mDepthStencil)
     {
         mDepthStencil->Release();
         mDepthStencil = NULL;
     }
     if (mRenderTarget)
     {
         mRenderTarget->Release();
         mRenderTarget = NULL;
     }
     if (mOffscreenTexture)
     {
         mOffscreenTexture->Release();
         mOffscreenTexture = NULL;
     }
     if (mWindow)
         mShareHandle = NULL;
 }
 static DWORD convertInterval(EGLint interval)
 {
     switch(interval)
     {
       case 0: return D3DPRESENT_INTERVAL_IMMEDIATE;
       case 1: return D3DPRESENT_INTERVAL_ONE;
       case 2: return D3DPRESENT_INTERVAL_TWO;
       case 3: return D3DPRESENT_INTERVAL_THREE;
       case 4: return D3DPRESENT_INTERVAL_FOUR;
       default: UNREACHABLE();
     }
     return D3DPRESENT_INTERVAL_DEFAULT;
 }
 EGLint SwapChain9::resize(int backbufferWidth, int backbufferHeight)
 {
     // D3D9 does not support resizing swap chains without recreating them
     return reset(backbufferWidth, backbufferHeight, mSwapInterval);
 }
 EGLint SwapChain9::reset(int backbufferWidth, int backbufferHeight, EGLint swapInterval)
 {
     IDirect3DDevice9 *device = mRenderer->getDevice();
     if (device == NULL)
     {
         return EGL_BAD_ACCESS;
     }
     // Evict all non-render target textures to system memory and release all resources
     // before reallocating them to free up as much video memory as possible.
     device->EvictManagedResources();
     HRESULT result;
     // Release specific resources to free up memory for the new render target, while the
     // old render target still exists for the purpose of preserving its contents.
     if (mSwapChain)
     {
         mSwapChain->Release();
         mSwapChain = NULL;
     }
     if (mBackBuffer)
     {
         mBackBuffer->Release();
         mBackBuffer = NULL;
     }
     if (mOffscreenTexture)
     {
         mOffscreenTexture->Release();
         mOffscreenTexture = NULL;
     }
     if (mDepthStencil)
     {
         mDepthStencil->Release();
         mDepthStencil = NULL;
     }
     HANDLE *pShareHandle = NULL;
     if (!mWindow && mRenderer->getShareHandleSupport())
     {
         pShareHandle = &mShareHandle;
     }
     result = device->CreateTexture(backbufferWidth, backbufferHeight, 1, D3DUSAGE_RENDERTARGET,
                                    gl_d3d9::ConvertRenderbufferFormat(mBackBufferFormat), D3DPOOL_DEFAULT,
                                    &mOffscreenTexture, pShareHandle);
     if (FAILED(result))
     {
         ERR("Could not create offscreen texture: %08lX", result);
         release();
         if (d3d9::isDeviceLostError(result))
         {
             return EGL_CONTEXT_LOST;
         }
         else
         {
             return EGL_BAD_ALLOC;
         }
     }
     IDirect3DSurface9 *oldRenderTarget = mRenderTarget;
     result = mOffscreenTexture->GetSurfaceLevel(0, &mRenderTarget);
     ASSERT(SUCCEEDED(result));
     if (oldRenderTarget)
     {
         RECT rect =
         {
 , 0,
             mWidth, mHeight
         };
         if (rect.right > static_cast<LONG>(backbufferWidth))
         {
             rect.right = backbufferWidth;
         }
         if (rect.bottom > static_cast<LONG>(backbufferHeight))
         {
             rect.bottom = backbufferHeight;
         }
         mRenderer->endScene();
         result = device->StretchRect(oldRenderTarget, &rect, mRenderTarget, &rect, D3DTEXF_NONE);
         ASSERT(SUCCEEDED(result));
         oldRenderTarget->Release();
     }
     if (mWindow)
     {
         D3DPRESENT_PARAMETERS presentParameters = {0};
         presentParameters.AutoDepthStencilFormat = gl_d3d9::ConvertRenderbufferFormat(mDepthBufferFormat);
         presentParameters.BackBufferCount = 1;
         presentParameters.BackBufferFormat = gl_d3d9::ConvertRenderbufferFormat(mBackBufferFormat);
         presentParameters.EnableAutoDepthStencil = FALSE;
         presentParameters.Flags = 0;
         presentParameters.hDeviceWindow = mWindow;
         presentParameters.MultiSampleQuality = 0;                  // FIXME: Unimplemented
         presentParameters.MultiSampleType = D3DMULTISAMPLE_NONE;   // FIXME: Unimplemented
         presentParameters.PresentationInterval = convertInterval(swapInterval);
         presentParameters.SwapEffect = D3DSWAPEFFECT_DISCARD;
         presentParameters.Windowed = TRUE;
         presentParameters.BackBufferWidth = backbufferWidth;
         presentParameters.BackBufferHeight = backbufferHeight;
         // http://crbug.com/140239
         // http://crbug.com/143434
         //
         // Some AMD/Intel switchable systems / drivers appear to round swap chain surfaces to a multiple of 64 pixels in width
         // when using the integrated Intel. This rounds the width up rather than down.
         //
         // Some non-switchable AMD GPUs / drivers do not respect the source rectangle to Present. Therefore, when the vendor ID
         // is not Intel, the back buffer width must be exactly the same width as the window or horizontal scaling will occur.
         if (mRenderer->getAdapterVendor() == VENDOR_ID_INTEL)
         {
             presentParameters.BackBufferWidth = (presentParameters.BackBufferWidth + 63) / 64 * 64;
         }
         result = device->CreateAdditionalSwapChain(&presentParameters, &mSwapChain);
         if (FAILED(result))
         {
             ASSERT(result == D3DERR_OUTOFVIDEOMEMORY || result == E_OUTOFMEMORY || result == D3DERR_INVALIDCALL || result == D3DERR_DEVICELOST);
             ERR("Could not create additional swap chains or offscreen surfaces: %08lX", result);
             release();
             if (d3d9::isDeviceLostError(result))
             {
                 return EGL_CONTEXT_LOST;
             }
             else
             {
                 return EGL_BAD_ALLOC;
             }
         }
         result = mSwapChain->GetBackBuffer(0, D3DBACKBUFFER_TYPE_MONO, &mBackBuffer);
         ASSERT(SUCCEEDED(result));
         InvalidateRect(mWindow, NULL, FALSE);
     }
     if (mDepthBufferFormat != GL_NONE)
     {
         result = device->CreateDepthStencilSurface(backbufferWidth, backbufferHeight,
                                                    gl_d3d9::ConvertRenderbufferFormat(mDepthBufferFormat),
                                                    D3DMULTISAMPLE_NONE, 0, FALSE, &mDepthStencil, NULL);
         if (FAILED(result))
         {
             ASSERT(result == D3DERR_OUTOFVIDEOMEMORY || result == E_OUTOFMEMORY || result == D3DERR_INVALIDCALL);
             ERR("Could not create depthstencil surface for new swap chain: 0x%08X", result);
             release();
             if (d3d9::isDeviceLostError(result))
             {
                 return EGL_CONTEXT_LOST;
             }
             else
             {
                 return EGL_BAD_ALLOC;
             }
         }
     }
     mWidth = backbufferWidth;
     mHeight = backbufferHeight;
     mSwapInterval = swapInterval;
     return EGL_SUCCESS;
 }
 // parameters should be validated/clamped by caller
 EGLint SwapChain9::swapRect(EGLint x, EGLint y, EGLint width, EGLint height)
 {
     if (!mSwapChain)
     {
         return EGL_SUCCESS;
     }
     IDirect3DDevice9 *device = mRenderer->getDevice();
     // Disable all pipeline operations
     device->SetRenderState(D3DRS_ZENABLE, D3DZB_FALSE);
     device->SetRenderState(D3DRS_FILLMODE, D3DFILL_SOLID);
     device->SetRenderState(D3DRS_ALPHATESTENABLE, FALSE);
     device->SetRenderState(D3DRS_ALPHABLENDENABLE, FALSE);
     device->SetRenderState(D3DRS_CULLMODE, D3DCULL_NONE);
     device->SetRenderState(D3DRS_STENCILENABLE, FALSE);
     device->SetRenderState(D3DRS_CLIPPLANEENABLE, 0);
     device->SetRenderState(D3DRS_COLORWRITEENABLE, D3DCOLORWRITEENABLE_ALPHA | D3DCOLORWRITEENABLE_BLUE | D3DCOLORWRITEENABLE_GREEN | D3DCOLORWRITEENABLE_RED);
     device->SetRenderState(D3DRS_SRGBWRITEENABLE, FALSE);
     device->SetRenderState(D3DRS_SCISSORTESTENABLE, FALSE);
     device->SetPixelShader(NULL);
     device->SetVertexShader(NULL);
     device->SetRenderTarget(0, mBackBuffer);
     device->SetDepthStencilSurface(NULL);
     device->SetTexture(0, mOffscreenTexture);
     device->SetTextureStageState(0, D3DTSS_COLOROP, D3DTOP_SELECTARG1);
     device->SetTextureStageState(0, D3DTSS_COLORARG1, D3DTA_TEXTURE);
     device->SetTextureStageState(1, D3DTSS_COLOROP, D3DTOP_DISABLE);
     device->SetSamplerState(0, D3DSAMP_MAGFILTER, D3DTEXF_POINT);
     device->SetSamplerState(0, D3DSAMP_MINFILTER, D3DTEXF_POINT);
     device->SetSamplerState(0, D3DSAMP_ADDRESSU, D3DTADDRESS_CLAMP);
     device->SetSamplerState(0, D3DSAMP_ADDRESSV, D3DTADDRESS_CLAMP);
     device->SetFVF(D3DFVF_XYZRHW | D3DFVF_TEX1);
     D3DVIEWPORT9 viewport = {0, 0, mWidth, mHeight, 0.0f, 1.0f};
     device->SetViewport(&viewport);
     float x1 = x - 0.5f;
     float y1 = (mHeight - y - height) - 0.5f;
     float x2 = (x + width) - 0.5f;
     float y2 = (mHeight - y) - 0.5f;
     float u1 = x / float(mWidth);
     float v1 = y / float(mHeight);
     float u2 = (x + width) / float(mWidth);
     float v2 = (y + height) / float(mHeight);
     float quad[4][6] = {{x1, y1, 0.0f, 1.0f, u1, v2},
                         {x2, y1, 0.0f, 1.0f, u2, v2},
                         {x2, y2, 0.0f, 1.0f, u2, v1},
                         {x1, y2, 0.0f, 1.0f, u1, v1}};   // x, y, z, rhw, u, v
     mRenderer->startScene();
     device->DrawPrimitiveUP(D3DPT_TRIANGLEFAN, 2, quad, 6 * sizeof(float));
     mRenderer->endScene();
     device->SetTexture(0, NULL);
     RECT rect =
     {
         x, mHeight - y - height,
         x + width, mHeight - y
     };
     HRESULT result = mSwapChain->Present(&rect, &rect, NULL, NULL, 0);
     mRenderer->markAllStateDirty();
     if (d3d9::isDeviceLostError(result))
     {
         return EGL_CONTEXT_LOST;
     }
     if (result == D3DERR_OUTOFVIDEOMEMORY || result == E_OUTOFMEMORY || result == D3DERR_DRIVERINTERNALERROR)
     {
         return EGL_BAD_ALLOC;
     }
     ASSERT(SUCCEEDED(result));
     return EGL_SUCCESS;
 }
 // Increments refcount on surface.
 // caller must Release() the returned surface
 IDirect3DSurface9 *SwapChain9::getRenderTarget()
 {
     if (mRenderTarget)
     {
         mRenderTarget->AddRef();
     }
     return mRenderTarget;
 }
 // Increments refcount on surface.
 // caller must Release() the returned surface
 IDirect3DSurface9 *SwapChain9::getDepthStencil()
 {
     if (mDepthStencil)
     {
         mDepthStencil->AddRef();
     }
     return mDepthStencil;
 }
 // Increments refcount on texture.
 // caller must Release() the returned texture
 IDirect3DTexture9 *SwapChain9::getOffscreenTexture()
 {
     if (mOffscreenTexture)
     {
         mOffscreenTexture->AddRef();
     }
     return mOffscreenTexture;
 }
 SwapChain9 *SwapChain9::makeSwapChain9(SwapChain *swapChain)
 {
     ASSERT(HAS_DYNAMIC_TYPE(rx::SwapChain9*, swapChain));
     return static_cast<rx::SwapChain9*>(swapChain);
 }
 void SwapChain9::recreate()
 {
     if (!mSwapChain)
     {
         return;
     }
     IDirect3DDevice9 *device = mRenderer->getDevice();
     if (device == NULL)
     {
         return;
     }
     D3DPRESENT_PARAMETERS presentParameters;
     HRESULT result = mSwapChain->GetPresentParameters(&presentParameters);
     ASSERT(SUCCEEDED(result));
     IDirect3DSwapChain9* newSwapChain = NULL;
     result = device->CreateAdditionalSwapChain(&presentParameters, &newSwapChain);
     if (FAILED(result))
     {
         return;
     }
     mSwapChain->Release();
     mSwapChain = newSwapChain;
     mBackBuffer->Release();
     result = mSwapChain->GetBackBuffer(0, D3DBACKBUFFER_TYPE_MONO, &mBackBuffer);
     ASSERT(SUCCEEDED(result));
 }
 }

The Tor Browser / annotate

gfx/angle/src/libGLESv2/renderer/SwapChain9.cpp@129ffea94266 (annotated)

gfx/angle/src/libGLESv2/renderer/SwapChain9.cpp