mirror of
https://gitlab.winehq.org/wine/wine-gecko.git
synced 2024-09-13 09:24:08 -07:00
799 lines
26 KiB
C++
799 lines
26 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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/*
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* nsWindowGfx - Painting and aceleration.
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*/
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// XXX Future: this should really be a stand alone class stored as
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// a member of nsWindow with getters and setters for things like render
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// mode and methods for handling paint.
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/**************************************************************
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**************************************************************
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**
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** BLOCK: Includes
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**
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** Include headers.
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**
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**************************************************************
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**************************************************************/
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#include "mozilla/plugins/PluginInstanceParent.h"
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using mozilla::plugins::PluginInstanceParent;
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#include "nsWindowGfx.h"
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#include <windows.h>
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#include "gfxImageSurface.h"
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#include "gfxWindowsSurface.h"
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#include "gfxWindowsPlatform.h"
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#include "nsGfxCIID.h"
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#include "gfxContext.h"
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#include "nsRenderingContext.h"
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#include "prmem.h"
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#include "WinUtils.h"
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#include "nsIWidgetListener.h"
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#include "mozilla/unused.h"
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#include "LayerManagerOGL.h"
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#include "BasicLayers.h"
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#ifdef MOZ_ENABLE_D3D9_LAYER
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#include "LayerManagerD3D9.h"
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#endif
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#ifdef MOZ_ENABLE_D3D10_LAYER
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#include "LayerManagerD3D10.h"
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#endif
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#include "nsUXThemeData.h"
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#include "nsUXThemeConstants.h"
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extern "C" {
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#define PIXMAN_DONT_DEFINE_STDINT
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#include "pixman.h"
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}
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using namespace mozilla;
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using namespace mozilla::layers;
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using namespace mozilla::widget;
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/**************************************************************
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**************************************************************
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**
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** BLOCK: Variables
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**
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** nsWindow Class static initializations and global variables.
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**
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**************************************************************
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**************************************************************/
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/**************************************************************
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*
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* SECTION: nsWindow statics
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*
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**************************************************************/
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static nsAutoPtr<uint8_t> sSharedSurfaceData;
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static gfxIntSize sSharedSurfaceSize;
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struct IconMetrics {
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int32_t xMetric;
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int32_t yMetric;
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int32_t defaultSize;
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};
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// Corresponds 1:1 to the IconSizeType enum
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static IconMetrics sIconMetrics[] = {
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{SM_CXSMICON, SM_CYSMICON, 16}, // small icon
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{SM_CXICON, SM_CYICON, 32} // regular icon
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};
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/**************************************************************
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**************************************************************
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**
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** BLOCK: nsWindowGfx impl.
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**
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** Misc. graphics related utilities.
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**
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**************************************************************
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**************************************************************/
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static bool
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IsRenderMode(gfxWindowsPlatform::RenderMode rmode)
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{
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return gfxWindowsPlatform::GetPlatform()->GetRenderMode() == rmode;
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}
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/**************************************************************
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**************************************************************
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**
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** BLOCK: nsWindow impl.
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**
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** Paint related nsWindow methods.
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**
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**************************************************************
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**************************************************************/
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// GetRegionToPaint returns the invalidated region that needs to be painted
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nsIntRegion nsWindow::GetRegionToPaint(bool aForceFullRepaint,
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PAINTSTRUCT ps, HDC aDC)
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{
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if (aForceFullRepaint) {
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RECT paintRect;
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::GetClientRect(mWnd, &paintRect);
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return nsIntRegion(WinUtils::ToIntRect(paintRect));
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}
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HRGN paintRgn = ::CreateRectRgn(0, 0, 0, 0);
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if (paintRgn != NULL) {
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int result = GetRandomRgn(aDC, paintRgn, SYSRGN);
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if (result == 1) {
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POINT pt = {0,0};
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::MapWindowPoints(NULL, mWnd, &pt, 1);
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::OffsetRgn(paintRgn, pt.x, pt.y);
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}
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nsIntRegion rgn(WinUtils::ConvertHRGNToRegion(paintRgn));
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::DeleteObject(paintRgn);
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return rgn;
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}
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return nsIntRegion(WinUtils::ToIntRect(ps.rcPaint));
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}
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#define WORDSSIZE(x) ((x).width * (x).height)
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static bool
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EnsureSharedSurfaceSize(gfxIntSize size)
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{
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gfxIntSize screenSize;
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screenSize.height = GetSystemMetrics(SM_CYSCREEN);
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screenSize.width = GetSystemMetrics(SM_CXSCREEN);
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if (WORDSSIZE(screenSize) > WORDSSIZE(size))
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size = screenSize;
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if (WORDSSIZE(screenSize) < WORDSSIZE(size))
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NS_WARNING("Trying to create a shared surface larger than the screen");
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if (!sSharedSurfaceData || (WORDSSIZE(size) > WORDSSIZE(sSharedSurfaceSize))) {
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sSharedSurfaceSize = size;
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sSharedSurfaceData = nullptr;
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sSharedSurfaceData = (uint8_t *)malloc(WORDSSIZE(sSharedSurfaceSize) * 4);
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}
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return (sSharedSurfaceData != nullptr);
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}
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nsIWidgetListener* nsWindow::GetPaintListener()
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{
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if (mDestroyCalled)
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return nullptr;
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return mAttachedWidgetListener ? mAttachedWidgetListener : mWidgetListener;
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}
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bool nsWindow::OnPaint(HDC aDC, uint32_t aNestingLevel)
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{
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// We never have reentrant paint events, except when we're running our RPC
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// windows event spin loop. If we don't trap for this, we'll try to paint,
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// but view manager will refuse to paint the surface, resulting is black
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// flashes on the plugin rendering surface.
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if (mozilla::ipc::RPCChannel::IsSpinLoopActive() && mPainting)
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return false;
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if (mWindowType == eWindowType_plugin) {
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/**
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* After we CallUpdateWindow to the child, occasionally a WM_PAINT message
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* is posted to the parent event loop with an empty update rect. Do a
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* dummy paint so that Windows stops dispatching WM_PAINT in an inifinite
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* loop. See bug 543788.
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*/
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RECT updateRect;
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if (!GetUpdateRect(mWnd, &updateRect, FALSE) ||
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(updateRect.left == updateRect.right &&
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updateRect.top == updateRect.bottom)) {
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PAINTSTRUCT ps;
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BeginPaint(mWnd, &ps);
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EndPaint(mWnd, &ps);
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return true;
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}
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PluginInstanceParent* instance = reinterpret_cast<PluginInstanceParent*>(
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::GetPropW(mWnd, L"PluginInstanceParentProperty"));
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if (instance) {
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unused << instance->CallUpdateWindow();
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} else {
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// We should never get here since in-process plugins should have
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// subclassed our HWND and handled WM_PAINT, but in some cases that
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// could fail. Return without asserting since it's not our fault.
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NS_WARNING("Plugin failed to subclass our window");
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}
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ValidateRect(mWnd, NULL);
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return true;
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}
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nsIWidgetListener* listener = GetPaintListener();
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if (listener) {
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listener->WillPaintWindow(this);
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}
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// Re-get the listener since the will paint notification may have killed it.
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listener = GetPaintListener();
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if (!listener)
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return false;
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bool result = true;
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PAINTSTRUCT ps;
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#ifdef MOZ_XUL
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if (!aDC && (eTransparencyTransparent == mTransparencyMode))
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{
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// For layered translucent windows all drawing should go to memory DC and no
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// WM_PAINT messages are normally generated. To support asynchronous painting
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// we force generation of WM_PAINT messages by invalidating window areas with
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// RedrawWindow, InvalidateRect or InvalidateRgn function calls.
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// BeginPaint/EndPaint must be called to make Windows think that invalid area
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// is painted. Otherwise it will continue sending the same message endlessly.
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::BeginPaint(mWnd, &ps);
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::EndPaint(mWnd, &ps);
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aDC = mMemoryDC;
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}
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#endif
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mPainting = true;
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#ifdef WIDGET_DEBUG_OUTPUT
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HRGN debugPaintFlashRegion = NULL;
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HDC debugPaintFlashDC = NULL;
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if (debug_WantPaintFlashing())
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{
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debugPaintFlashRegion = ::CreateRectRgn(0, 0, 0, 0);
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::GetUpdateRgn(mWnd, debugPaintFlashRegion, TRUE);
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debugPaintFlashDC = ::GetDC(mWnd);
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}
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#endif // WIDGET_DEBUG_OUTPUT
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HDC hDC = aDC ? aDC : (::BeginPaint(mWnd, &ps));
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if (!IsRenderMode(gfxWindowsPlatform::RENDER_DIRECT2D)) {
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mPaintDC = hDC;
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}
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#ifdef MOZ_XUL
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bool forceRepaint = aDC || (eTransparencyTransparent == mTransparencyMode);
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#else
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bool forceRepaint = NULL != aDC;
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#endif
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nsIntRegion region = GetRegionToPaint(forceRepaint, ps, hDC);
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if (!region.IsEmpty() && listener)
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{
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// Should probably pass in a real region here, using GetRandomRgn
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// http://msdn.microsoft.com/library/default.asp?url=/library/en-us/gdi/clipping_4q0e.asp
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#ifdef WIDGET_DEBUG_OUTPUT
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debug_DumpPaintEvent(stdout,
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this,
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region,
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nsAutoCString("noname"),
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(int32_t) mWnd);
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#endif // WIDGET_DEBUG_OUTPUT
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switch (GetLayerManager()->GetBackendType()) {
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case LAYERS_BASIC:
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{
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nsRefPtr<gfxASurface> targetSurface;
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#if defined(MOZ_XUL)
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// don't support transparency for non-GDI rendering, for now
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if ((IsRenderMode(gfxWindowsPlatform::RENDER_GDI) ||
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IsRenderMode(gfxWindowsPlatform::RENDER_DIRECT2D)) &&
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eTransparencyTransparent == mTransparencyMode) {
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if (mTransparentSurface == nullptr)
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SetupTranslucentWindowMemoryBitmap(mTransparencyMode);
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targetSurface = mTransparentSurface;
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}
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#endif
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#ifdef CAIRO_HAS_D2D_SURFACE
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if (!targetSurface &&
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IsRenderMode(gfxWindowsPlatform::RENDER_DIRECT2D))
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{
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if (!mD2DWindowSurface) {
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gfxASurface::gfxContentType content = gfxASurface::CONTENT_COLOR;
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#if defined(MOZ_XUL)
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if (mTransparencyMode != eTransparencyOpaque) {
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content = gfxASurface::CONTENT_COLOR_ALPHA;
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}
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#endif
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mD2DWindowSurface = new gfxD2DSurface(mWnd, content);
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}
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if (!mD2DWindowSurface->CairoStatus()) {
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targetSurface = mD2DWindowSurface;
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} else {
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mD2DWindowSurface = nullptr;
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}
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}
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#endif
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nsRefPtr<gfxWindowsSurface> targetSurfaceWin;
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if (!targetSurface &&
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(IsRenderMode(gfxWindowsPlatform::RENDER_GDI) ||
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IsRenderMode(gfxWindowsPlatform::RENDER_DIRECT2D)))
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{
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uint32_t flags = (mTransparencyMode == eTransparencyOpaque) ? 0 :
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gfxWindowsSurface::FLAG_IS_TRANSPARENT;
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targetSurfaceWin = new gfxWindowsSurface(hDC, flags);
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targetSurface = targetSurfaceWin;
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}
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nsRefPtr<gfxImageSurface> targetSurfaceImage;
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if (!targetSurface &&
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(IsRenderMode(gfxWindowsPlatform::RENDER_IMAGE_STRETCH32) ||
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IsRenderMode(gfxWindowsPlatform::RENDER_IMAGE_STRETCH24)))
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{
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gfxIntSize surfaceSize(ps.rcPaint.right - ps.rcPaint.left,
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ps.rcPaint.bottom - ps.rcPaint.top);
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if (!EnsureSharedSurfaceSize(surfaceSize)) {
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NS_ERROR("Couldn't allocate a shared image surface!");
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return false;
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}
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// don't use the shared surface directly; instead, create a new one
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// that just reuses its buffer.
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targetSurfaceImage = new gfxImageSurface(sSharedSurfaceData.get(),
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surfaceSize,
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surfaceSize.width * 4,
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gfxASurface::ImageFormatRGB24);
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if (targetSurfaceImage && !targetSurfaceImage->CairoStatus()) {
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targetSurfaceImage->SetDeviceOffset(gfxPoint(-ps.rcPaint.left, -ps.rcPaint.top));
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targetSurface = targetSurfaceImage;
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}
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}
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if (!targetSurface) {
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NS_ERROR("Invalid RenderMode!");
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return false;
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}
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nsRefPtr<gfxContext> thebesContext = new gfxContext(targetSurface);
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if (IsRenderMode(gfxWindowsPlatform::RENDER_DIRECT2D)) {
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const nsIntRect* r;
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for (nsIntRegionRectIterator iter(region);
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(r = iter.Next()) != nullptr;) {
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thebesContext->Rectangle(gfxRect(r->x, r->y, r->width, r->height), true);
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}
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thebesContext->Clip();
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thebesContext->SetOperator(gfxContext::OPERATOR_CLEAR);
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thebesContext->Paint();
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thebesContext->SetOperator(gfxContext::OPERATOR_OVER);
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}
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// don't need to double buffer with anything but GDI
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BufferMode doubleBuffering = mozilla::layers::BUFFER_NONE;
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if (IsRenderMode(gfxWindowsPlatform::RENDER_GDI)) {
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#ifdef MOZ_XUL
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switch (mTransparencyMode) {
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case eTransparencyGlass:
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case eTransparencyBorderlessGlass:
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default:
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// If we're not doing translucency, then double buffer
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doubleBuffering = mozilla::layers::BUFFER_BUFFERED;
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break;
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case eTransparencyTransparent:
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// If we're rendering with translucency, we're going to be
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// rendering the whole window; make sure we clear it first
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thebesContext->SetOperator(gfxContext::OPERATOR_CLEAR);
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thebesContext->Paint();
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thebesContext->SetOperator(gfxContext::OPERATOR_OVER);
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break;
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}
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#else
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doubleBuffering = mozilla::layers::BUFFER_BUFFERED;
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#endif
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}
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{
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AutoLayerManagerSetup
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setupLayerManager(this, thebesContext, doubleBuffering);
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result = listener->PaintWindow(this, region);
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}
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#ifdef MOZ_XUL
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if ((IsRenderMode(gfxWindowsPlatform::RENDER_GDI) ||
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IsRenderMode(gfxWindowsPlatform::RENDER_DIRECT2D))&&
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eTransparencyTransparent == mTransparencyMode) {
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// Data from offscreen drawing surface was copied to memory bitmap of transparent
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// bitmap. Now it can be read from memory bitmap to apply alpha channel and after
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// that displayed on the screen.
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UpdateTranslucentWindow();
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} else
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#endif
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#ifdef CAIRO_HAS_D2D_SURFACE
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if (result) {
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if (mD2DWindowSurface) {
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mD2DWindowSurface->Present();
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}
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}
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#endif
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if (result) {
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if (IsRenderMode(gfxWindowsPlatform::RENDER_IMAGE_STRETCH24) ||
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IsRenderMode(gfxWindowsPlatform::RENDER_IMAGE_STRETCH32))
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{
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gfxIntSize surfaceSize = targetSurfaceImage->GetSize();
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// Just blit this directly
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BITMAPINFOHEADER bi;
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memset(&bi, 0, sizeof(BITMAPINFOHEADER));
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bi.biSize = sizeof(BITMAPINFOHEADER);
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bi.biWidth = surfaceSize.width;
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bi.biHeight = - surfaceSize.height;
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bi.biPlanes = 1;
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bi.biBitCount = 32;
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bi.biCompression = BI_RGB;
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if (IsRenderMode(gfxWindowsPlatform::RENDER_IMAGE_STRETCH24)) {
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// On Windows CE/Windows Mobile, 24bpp packed-pixel sources
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// seem to be far faster to blit than 32bpp (see bug 484864).
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// So, convert the bits to 24bpp by stripping out the unused
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// alpha byte. 24bpp DIBs also have scanlines that are 4-byte
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// aligned though, so that must be taken into account.
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int srcstride = surfaceSize.width*4;
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int dststride = surfaceSize.width*3;
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dststride = (dststride + 3) & ~3;
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// Convert in place
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for (int j = 0; j < surfaceSize.height; ++j) {
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unsigned int *src = (unsigned int*) (targetSurfaceImage->Data() + j*srcstride);
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unsigned int *dst = (unsigned int*) (targetSurfaceImage->Data() + j*dststride);
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// go 4 pixels at a time, since each 4 pixels
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// turns into 3 DWORDs when converted into BGR:
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// BGRx BGRx BGRx BGRx -> BGRB GRBG RBGR
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//
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// However, since we're dealing with little-endian ints, this is actually:
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// xRGB xrgb xRGB xrgb -> bRGB GBrg rgbR
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int width_left = surfaceSize.width;
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while (width_left >= 4) {
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unsigned int a = *src++;
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unsigned int b = *src++;
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unsigned int c = *src++;
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unsigned int d = *src++;
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*dst++ = (a & 0x00ffffff) | (b << 24);
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*dst++ = ((b & 0x00ffff00) >> 8) | (c << 16);
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*dst++ = ((c & 0x00ff0000) >> 16) | (d << 8);
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width_left -= 4;
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}
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|
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// then finish up whatever number of pixels are left,
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// using bytes.
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unsigned char *bsrc = (unsigned char*) src;
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unsigned char *bdst = (unsigned char*) dst;
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switch (width_left) {
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case 3:
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*bdst++ = *bsrc++;
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*bdst++ = *bsrc++;
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*bdst++ = *bsrc++;
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bsrc++;
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case 2:
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*bdst++ = *bsrc++;
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*bdst++ = *bsrc++;
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*bdst++ = *bsrc++;
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bsrc++;
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case 1:
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*bdst++ = *bsrc++;
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*bdst++ = *bsrc++;
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*bdst++ = *bsrc++;
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bsrc++;
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case 0:
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break;
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}
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}
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bi.biBitCount = 24;
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}
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StretchDIBits(hDC,
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ps.rcPaint.left, ps.rcPaint.top,
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surfaceSize.width, surfaceSize.height,
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0, 0,
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surfaceSize.width, surfaceSize.height,
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targetSurfaceImage->Data(),
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(BITMAPINFO*) &bi,
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DIB_RGB_COLORS,
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SRCCOPY);
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|
}
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}
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}
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break;
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case LAYERS_OPENGL:
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static_cast<mozilla::layers::LayerManagerOGL*>(GetLayerManager())->
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|
SetClippingRegion(region);
|
|
result = listener->PaintWindow(this, region);
|
|
break;
|
|
#ifdef MOZ_ENABLE_D3D9_LAYER
|
|
case LAYERS_D3D9:
|
|
{
|
|
nsRefPtr<LayerManagerD3D9> layerManagerD3D9 =
|
|
static_cast<mozilla::layers::LayerManagerD3D9*>(GetLayerManager());
|
|
layerManagerD3D9->SetClippingRegion(region);
|
|
result = listener->PaintWindow(this, region);
|
|
if (layerManagerD3D9->DeviceWasRemoved()) {
|
|
mLayerManager->Destroy();
|
|
mLayerManager = nullptr;
|
|
// When our device was removed, we should have gfxWindowsPlatform
|
|
// check if its render mode is up to date!
|
|
gfxWindowsPlatform::GetPlatform()->UpdateRenderMode();
|
|
Invalidate();
|
|
}
|
|
}
|
|
break;
|
|
#endif
|
|
#ifdef MOZ_ENABLE_D3D10_LAYER
|
|
case LAYERS_D3D10:
|
|
{
|
|
gfxWindowsPlatform::GetPlatform()->UpdateRenderMode();
|
|
LayerManagerD3D10 *layerManagerD3D10 = static_cast<mozilla::layers::LayerManagerD3D10*>(GetLayerManager());
|
|
if (layerManagerD3D10->device() != gfxWindowsPlatform::GetPlatform()->GetD3D10Device()) {
|
|
Invalidate();
|
|
} else {
|
|
result = listener->PaintWindow(this, region);
|
|
}
|
|
}
|
|
break;
|
|
#endif
|
|
case LAYERS_CLIENT:
|
|
result = listener->PaintWindow(this, region);
|
|
break;
|
|
default:
|
|
NS_ERROR("Unknown layers backend used!");
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (!aDC) {
|
|
::EndPaint(mWnd, &ps);
|
|
}
|
|
|
|
mPaintDC = nullptr;
|
|
mLastPaintEndTime = TimeStamp::Now();
|
|
|
|
#if defined(WIDGET_DEBUG_OUTPUT)
|
|
if (debug_WantPaintFlashing())
|
|
{
|
|
// Only flash paint events which have not ignored the paint message.
|
|
// Those that ignore the paint message aren't painting anything so there
|
|
// is only the overhead of the dispatching the paint event.
|
|
if (result) {
|
|
::InvertRgn(debugPaintFlashDC, debugPaintFlashRegion);
|
|
PR_Sleep(PR_MillisecondsToInterval(30));
|
|
::InvertRgn(debugPaintFlashDC, debugPaintFlashRegion);
|
|
PR_Sleep(PR_MillisecondsToInterval(30));
|
|
}
|
|
::ReleaseDC(mWnd, debugPaintFlashDC);
|
|
::DeleteObject(debugPaintFlashRegion);
|
|
}
|
|
#endif // WIDGET_DEBUG_OUTPUT
|
|
|
|
mPainting = false;
|
|
|
|
// Re-get the listener since painting may have killed it.
|
|
listener = GetPaintListener();
|
|
if (listener)
|
|
listener->DidPaintWindow();
|
|
|
|
if (aNestingLevel == 0 && ::GetUpdateRect(mWnd, NULL, false)) {
|
|
OnPaint(aDC, 1);
|
|
}
|
|
|
|
return result;
|
|
}
|
|
|
|
gfxIntSize nsWindowGfx::GetIconMetrics(IconSizeType aSizeType) {
|
|
int32_t width = ::GetSystemMetrics(sIconMetrics[aSizeType].xMetric);
|
|
int32_t height = ::GetSystemMetrics(sIconMetrics[aSizeType].yMetric);
|
|
|
|
if (width == 0 || height == 0) {
|
|
width = height = sIconMetrics[aSizeType].defaultSize;
|
|
}
|
|
|
|
return gfxIntSize(width, height);
|
|
}
|
|
|
|
nsresult nsWindowGfx::CreateIcon(imgIContainer *aContainer,
|
|
bool aIsCursor,
|
|
uint32_t aHotspotX,
|
|
uint32_t aHotspotY,
|
|
gfxIntSize aScaledSize,
|
|
HICON *aIcon) {
|
|
|
|
// Get the image data
|
|
nsRefPtr<gfxASurface> surface;
|
|
aContainer->GetFrame(imgIContainer::FRAME_CURRENT,
|
|
imgIContainer::FLAG_SYNC_DECODE,
|
|
getter_AddRefs(surface));
|
|
NS_ENSURE_TRUE(surface, NS_ERROR_NOT_AVAILABLE);
|
|
|
|
nsRefPtr<gfxImageSurface> frame(surface->GetAsReadableARGB32ImageSurface());
|
|
NS_ENSURE_TRUE(frame, NS_ERROR_NOT_AVAILABLE);
|
|
|
|
int32_t width = frame->Width();
|
|
int32_t height = frame->Height();
|
|
if (!width || !height)
|
|
return NS_ERROR_FAILURE;
|
|
|
|
uint8_t *data;
|
|
nsRefPtr<gfxImageSurface> dest;
|
|
|
|
if ((aScaledSize.width == 0 && aScaledSize.height == 0) ||
|
|
(aScaledSize.width == width && aScaledSize.height == height)) {
|
|
// We're not scaling the image. The data is simply what's in the frame.
|
|
data = frame->Data();
|
|
}
|
|
else {
|
|
NS_ENSURE_ARG(aScaledSize.width > 0);
|
|
NS_ENSURE_ARG(aScaledSize.height > 0);
|
|
// Draw a scaled version of the image to a temporary surface
|
|
dest = new gfxImageSurface(aScaledSize, gfxASurface::ImageFormatARGB32);
|
|
if (!dest)
|
|
return NS_ERROR_OUT_OF_MEMORY;
|
|
|
|
gfxContext ctx(dest);
|
|
|
|
// Set scaling
|
|
gfxFloat sw = (double) aScaledSize.width / width;
|
|
gfxFloat sh = (double) aScaledSize.height / height;
|
|
ctx.Scale(sw, sh);
|
|
|
|
// Paint a scaled image
|
|
ctx.SetOperator(gfxContext::OPERATOR_SOURCE);
|
|
ctx.SetSource(frame);
|
|
ctx.Paint();
|
|
|
|
data = dest->Data();
|
|
width = aScaledSize.width;
|
|
height = aScaledSize.height;
|
|
}
|
|
|
|
HBITMAP bmp = DataToBitmap(data, width, -height, 32);
|
|
uint8_t* a1data = Data32BitTo1Bit(data, width, height);
|
|
if (!a1data) {
|
|
return NS_ERROR_FAILURE;
|
|
}
|
|
|
|
HBITMAP mbmp = DataToBitmap(a1data, width, -height, 1);
|
|
PR_Free(a1data);
|
|
|
|
ICONINFO info = {0};
|
|
info.fIcon = !aIsCursor;
|
|
info.xHotspot = aHotspotX;
|
|
info.yHotspot = aHotspotY;
|
|
info.hbmMask = mbmp;
|
|
info.hbmColor = bmp;
|
|
|
|
HCURSOR icon = ::CreateIconIndirect(&info);
|
|
::DeleteObject(mbmp);
|
|
::DeleteObject(bmp);
|
|
if (!icon)
|
|
return NS_ERROR_FAILURE;
|
|
*aIcon = icon;
|
|
return NS_OK;
|
|
}
|
|
|
|
// Adjust cursor image data
|
|
uint8_t* nsWindowGfx::Data32BitTo1Bit(uint8_t* aImageData,
|
|
uint32_t aWidth, uint32_t aHeight)
|
|
{
|
|
// We need (aWidth + 7) / 8 bytes plus zero-padding up to a multiple of
|
|
// 4 bytes for each row (HBITMAP requirement). Bug 353553.
|
|
uint32_t outBpr = ((aWidth + 31) / 8) & ~3;
|
|
|
|
// Allocate and clear mask buffer
|
|
uint8_t* outData = (uint8_t*)PR_Calloc(outBpr, aHeight);
|
|
if (!outData)
|
|
return NULL;
|
|
|
|
int32_t *imageRow = (int32_t*)aImageData;
|
|
for (uint32_t curRow = 0; curRow < aHeight; curRow++) {
|
|
uint8_t *outRow = outData + curRow * outBpr;
|
|
uint8_t mask = 0x80;
|
|
for (uint32_t curCol = 0; curCol < aWidth; curCol++) {
|
|
// Use sign bit to test for transparency, as alpha byte is highest byte
|
|
if (*imageRow++ < 0)
|
|
*outRow |= mask;
|
|
|
|
mask >>= 1;
|
|
if (!mask) {
|
|
outRow ++;
|
|
mask = 0x80;
|
|
}
|
|
}
|
|
}
|
|
|
|
return outData;
|
|
}
|
|
|
|
/**
|
|
* Convert the given image data to a HBITMAP. If the requested depth is
|
|
* 32 bit, a bitmap with an alpha channel will be returned.
|
|
*
|
|
* @param aImageData The image data to convert. Must use the format accepted
|
|
* by CreateDIBitmap.
|
|
* @param aWidth With of the bitmap, in pixels.
|
|
* @param aHeight Height of the image, in pixels.
|
|
* @param aDepth Image depth, in bits. Should be one of 1, 24 and 32.
|
|
*
|
|
* @return The HBITMAP representing the image. Caller should call
|
|
* DeleteObject when done with the bitmap.
|
|
* On failure, NULL will be returned.
|
|
*/
|
|
HBITMAP nsWindowGfx::DataToBitmap(uint8_t* aImageData,
|
|
uint32_t aWidth,
|
|
uint32_t aHeight,
|
|
uint32_t aDepth)
|
|
{
|
|
HDC dc = ::GetDC(NULL);
|
|
|
|
if (aDepth == 32) {
|
|
// Alpha channel. We need the new header.
|
|
BITMAPV4HEADER head = { 0 };
|
|
head.bV4Size = sizeof(head);
|
|
head.bV4Width = aWidth;
|
|
head.bV4Height = aHeight;
|
|
head.bV4Planes = 1;
|
|
head.bV4BitCount = aDepth;
|
|
head.bV4V4Compression = BI_BITFIELDS;
|
|
head.bV4SizeImage = 0; // Uncompressed
|
|
head.bV4XPelsPerMeter = 0;
|
|
head.bV4YPelsPerMeter = 0;
|
|
head.bV4ClrUsed = 0;
|
|
head.bV4ClrImportant = 0;
|
|
|
|
head.bV4RedMask = 0x00FF0000;
|
|
head.bV4GreenMask = 0x0000FF00;
|
|
head.bV4BlueMask = 0x000000FF;
|
|
head.bV4AlphaMask = 0xFF000000;
|
|
|
|
HBITMAP bmp = ::CreateDIBitmap(dc,
|
|
reinterpret_cast<CONST BITMAPINFOHEADER*>(&head),
|
|
CBM_INIT,
|
|
aImageData,
|
|
reinterpret_cast<CONST BITMAPINFO*>(&head),
|
|
DIB_RGB_COLORS);
|
|
::ReleaseDC(NULL, dc);
|
|
return bmp;
|
|
}
|
|
|
|
char reserved_space[sizeof(BITMAPINFOHEADER) + sizeof(RGBQUAD) * 2];
|
|
BITMAPINFOHEADER& head = *(BITMAPINFOHEADER*)reserved_space;
|
|
|
|
head.biSize = sizeof(BITMAPINFOHEADER);
|
|
head.biWidth = aWidth;
|
|
head.biHeight = aHeight;
|
|
head.biPlanes = 1;
|
|
head.biBitCount = (WORD)aDepth;
|
|
head.biCompression = BI_RGB;
|
|
head.biSizeImage = 0; // Uncompressed
|
|
head.biXPelsPerMeter = 0;
|
|
head.biYPelsPerMeter = 0;
|
|
head.biClrUsed = 0;
|
|
head.biClrImportant = 0;
|
|
|
|
BITMAPINFO& bi = *(BITMAPINFO*)reserved_space;
|
|
|
|
if (aDepth == 1) {
|
|
RGBQUAD black = { 0, 0, 0, 0 };
|
|
RGBQUAD white = { 255, 255, 255, 0 };
|
|
|
|
bi.bmiColors[0] = white;
|
|
bi.bmiColors[1] = black;
|
|
}
|
|
|
|
HBITMAP bmp = ::CreateDIBitmap(dc, &head, CBM_INIT, aImageData, &bi, DIB_RGB_COLORS);
|
|
::ReleaseDC(NULL, dc);
|
|
return bmp;
|
|
}
|