mirror of
https://gitlab.winehq.org/wine/wine-gecko.git
synced 2024-09-13 09:24:08 -07:00
120 lines
4.4 KiB
C++
120 lines
4.4 KiB
C++
/*
|
|
* Copyright (c) 2013, The Linux Foundation. All rights reserved.
|
|
*
|
|
* Licensed under the Apache License, Version 2.0 (the "License");
|
|
* you may not use this file except in compliance with the License.
|
|
* You may obtain a copy of the License at
|
|
*
|
|
* http://www.apache.org/licenses/LICENSE-2.0
|
|
*
|
|
* Unless required by applicable law or agreed to in writing, software
|
|
* distributed under the License is distributed on an "AS IS" BASIS,
|
|
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
* See the License for the specific language governing permissions and
|
|
* limitations under the License.
|
|
*/
|
|
|
|
#ifndef mozilla_HwcUtils
|
|
#define mozilla_HwcUtils
|
|
|
|
#include "Layers.h"
|
|
#include <vector>
|
|
#include "hardware/hwcomposer.h"
|
|
|
|
namespace mozilla {
|
|
|
|
class HwcUtils {
|
|
public:
|
|
|
|
enum {
|
|
HWC_USE_GPU = HWC_FRAMEBUFFER,
|
|
HWC_USE_OVERLAY = HWC_OVERLAY,
|
|
HWC_USE_COPYBIT
|
|
};
|
|
|
|
// HWC layer flags
|
|
enum {
|
|
// Draw a solid color rectangle
|
|
// The color should be set on the transform member of the hwc_layer_t struct
|
|
// The expected format is a 32 bit ABGR with 8 bits per component
|
|
HWC_COLOR_FILL = 0x8,
|
|
// Swap the RB pixels of gralloc buffer, like RGBA<->BGRA or RGBX<->BGRX
|
|
// The flag will be set inside LayerRenderState
|
|
HWC_FORMAT_RB_SWAP = 0x40
|
|
};
|
|
|
|
typedef std::vector<hwc_rect_t> RectVector;
|
|
|
|
/* Utility functions - implemented in HwcUtils.cpp */
|
|
|
|
/**
|
|
* Calculates the layer's clipping rectangle
|
|
*
|
|
* @param aTransform Input. A transformation matrix
|
|
* It transforms the clip rect to screen space
|
|
* @param aLayerClip Input. The layer's internal clipping rectangle.
|
|
* This may be NULL which means the layer has no internal clipping
|
|
* The origin is the top-left corner of the layer
|
|
* @param aParentClip Input. The parent layer's rendering clipping rectangle
|
|
* The origin is the top-left corner of the screen
|
|
* @param aRenderClip Output. The layer's rendering clipping rectangle
|
|
* The origin is the top-left corner of the screen
|
|
* @return true if the layer should be rendered.
|
|
* false if the layer can be skipped
|
|
*/
|
|
static bool CalculateClipRect(const gfxMatrix& aTransform,
|
|
const nsIntRect* aLayerClip,
|
|
nsIntRect aParentClip, nsIntRect* aRenderClip);
|
|
|
|
|
|
/**
|
|
* Prepares hwc layer visible region required for hwc composition
|
|
*
|
|
* @param aVisible Input. Layer's unclipped visible region
|
|
* The origin is the top-left corner of the layer
|
|
* @param aTransform Input. Layer's transformation matrix
|
|
* It transforms from layer space to screen space
|
|
* @param aClip Input. A clipping rectangle.
|
|
* The origin is the top-left corner of the screen
|
|
* @param aBufferRect Input. The layer's buffer bounds
|
|
* The origin is the top-left corner of the layer
|
|
* @param aVisibleRegionScreen Output. Visible region in screen space.
|
|
* The origin is the top-left corner of the screen
|
|
* @return true if the layer should be rendered.
|
|
* false if the layer can be skipped
|
|
*/
|
|
static bool PrepareVisibleRegion(const nsIntRegion& aVisible,
|
|
const gfxMatrix& aTransform,
|
|
nsIntRect aClip, nsIntRect aBufferRect,
|
|
RectVector* aVisibleRegionScreen);
|
|
|
|
|
|
/**
|
|
* Sets hwc layer rectangles required for hwc composition
|
|
*
|
|
* @param aVisible Input. Layer's unclipped visible rectangle
|
|
* The origin is the top-left corner of the layer
|
|
* @param aTransform Input. Layer's transformation matrix
|
|
* It transforms from layer space to screen space
|
|
* @param aClip Input. A clipping rectangle.
|
|
* The origin is the top-left corner of the screen
|
|
* @param aBufferRect Input. The layer's buffer bounds
|
|
* The origin is the top-left corner of the layer
|
|
* @param aSurceCrop Output. Area of the source to consider,
|
|
* the origin is the top-left corner of the buffer
|
|
* @param aVisibleRegionScreen Output. Visible region in screen space.
|
|
* The origin is the top-left corner of the screen
|
|
* @return true if the layer should be rendered.
|
|
* false if the layer can be skipped
|
|
*/
|
|
static bool PrepareLayerRects(nsIntRect aVisible, const gfxMatrix& aTransform,
|
|
nsIntRect aClip, nsIntRect aBufferRect,
|
|
hwc_rect_t* aSourceCrop,
|
|
hwc_rect_t* aVisibleRegionScreen);
|
|
|
|
};
|
|
|
|
} // namespace mozilla
|
|
|
|
#endif // mozilla_HwcUtils
|