gecko/gfx/layers/GonkIOSurfaceImage.cpp
2012-10-27 12:48:18 +02:00

106 lines
3.0 KiB
C++

/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#include "GonkIOSurfaceImage.h"
#include <OMX_IVCommon.h>
#include <ColorConverter.h>
#include <utils/RefBase.h>
#include <utils/Errors.h>
#define ALIGN(x, align) ((x + align - 1) & ~(align - 1))
typedef android::GraphicBuffer GraphicBuffer;
namespace mozilla {
namespace layers {
uint32_t GonkIOSurfaceImage::sColorIdMap[] = {
HAL_PIXEL_FORMAT_YCbCr_420_P, OMX_COLOR_FormatYUV420Planar,
HAL_PIXEL_FORMAT_YCbCr_422_P, OMX_COLOR_FormatYUV422Planar,
HAL_PIXEL_FORMAT_YCbCr_420_SP, OMX_COLOR_FormatYUV420SemiPlanar,
HAL_PIXEL_FORMAT_YCrCb_420_SP_ADRENO, OMX_QCOM_COLOR_FormatYVU420SemiPlanar,
HAL_PIXEL_FORMAT_YV12, OMX_COLOR_FormatYUV420Planar,
0, 0
};
struct GraphicBufferAutoUnlock {
android::sp<GraphicBuffer> mGraphicBuffer;
GraphicBufferAutoUnlock(android::sp<GraphicBuffer>& aGraphicBuffer)
: mGraphicBuffer(aGraphicBuffer) { }
~GraphicBufferAutoUnlock() { mGraphicBuffer->unlock(); }
};
already_AddRefed<gfxASurface>
GonkIOSurfaceImage::GetAsSurface()
{
android::sp<GraphicBuffer> graphicBuffer =
GrallocBufferActor::GetFrom(GetSurfaceDescriptor());
void *buffer;
int32_t rv =
graphicBuffer->lock(android::GraphicBuffer::USAGE_SW_READ_OFTEN, &buffer);
if (rv) {
NS_WARNING("Couldn't lock graphic buffer");
return nullptr;
}
GraphicBufferAutoUnlock unlock(graphicBuffer);
uint32_t format = graphicBuffer->getPixelFormat();
uint32_t omxFormat = 0;
for (int i = 0; sColorIdMap[i]; i += 2) {
if (sColorIdMap[i] == format) {
omxFormat = sColorIdMap[i + 1];
break;
}
}
if (!omxFormat) {
NS_WARNING("Unknown color format");
return nullptr;
}
nsRefPtr<gfxImageSurface> imageSurface =
new gfxImageSurface(GetSize(), gfxASurface::ImageFormatRGB16_565);
android::ColorConverter *colorConverter =
new android::ColorConverter((OMX_COLOR_FORMATTYPE)omxFormat,
OMX_COLOR_Format16bitRGB565);
if (!colorConverter->isValid()) {
NS_WARNING("Invalid color conversion");
return nullptr;
}
uint32_t width = GetSize().width;
uint32_t height = GetSize().height;
if (omxFormat == OMX_QCOM_COLOR_FormatYVU420SemiPlanar) {
// The Adreno hardware decoder aligns image dimensions to a multiple of 32,
// so we have to account for that here
width = ALIGN(width, 32);
height = ALIGN(height, 32);
}
rv = colorConverter->convert(buffer, width, height,
0, 0, width - 1, height - 1 /* source crop */,
imageSurface->Data(), width, height,
0, 0, width - 1, height - 1 /* dest crop */);
if (rv) {
NS_WARNING("OMX color conversion failed");
return nullptr;
}
return imageSurface.forget();
}
} // namespace layers
} // namespace mozilla