forked from mirrors/gecko-dev
50 lines
1.5 KiB
C++
50 lines
1.5 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*-
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*
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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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#include "WindowSurfaceX11.h"
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#include "gfxPlatform.h"
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#include "X11UndefineNone.h"
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namespace mozilla {
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namespace widget {
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WindowSurfaceX11::WindowSurfaceX11(Display* aDisplay, Window aWindow,
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Visual* aVisual, unsigned int aDepth)
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: mDisplay(aDisplay),
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mWindow(aWindow),
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mVisual(aVisual),
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mDepth(aDepth),
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mFormat(GetVisualFormat(aVisual, aDepth)) {}
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/* static */
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gfx::SurfaceFormat WindowSurfaceX11::GetVisualFormat(const Visual* aVisual,
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unsigned int aDepth) {
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switch (aDepth) {
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case 32:
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if (aVisual->red_mask == 0xff0000 && aVisual->green_mask == 0xff00 &&
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aVisual->blue_mask == 0xff) {
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return gfx::SurfaceFormat::B8G8R8A8;
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}
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break;
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case 24:
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if (aVisual->red_mask == 0xff0000 && aVisual->green_mask == 0xff00 &&
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aVisual->blue_mask == 0xff) {
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return gfx::SurfaceFormat::B8G8R8X8;
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}
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break;
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case 16:
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if (aVisual->red_mask == 0xf800 && aVisual->green_mask == 0x07e0 &&
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aVisual->blue_mask == 0x1f) {
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return gfx::SurfaceFormat::R5G6B5_UINT16;
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}
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break;
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}
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return gfx::SurfaceFormat::UNKNOWN;
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}
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} // namespace widget
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} // namespace mozilla
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