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// Copyright 2016 The SwiftShader Authors. 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.
#include "FrameBufferAndroid.hpp"
#include "Common/GrallocAndroid.hpp"
#include <system/window.h>
namespace sw
{
inline int dequeueBuffer(ANativeWindow* window, ANativeWindowBuffer** buffer)
{
#if ANDROID_PLATFORM_SDK_VERSION > 16
return native_window_dequeue_buffer_and_wait(window, buffer);
#else
return window->dequeueBuffer(window, buffer);
#endif
}
inline int queueBuffer(ANativeWindow* window, ANativeWindowBuffer* buffer, int fenceFd)
{
#if ANDROID_PLATFORM_SDK_VERSION > 16
return window->queueBuffer(window, buffer, fenceFd);
#else
return window->queueBuffer(window, buffer);
#endif
}
inline int cancelBuffer(ANativeWindow* window, ANativeWindowBuffer* buffer, int fenceFd)
{
#if ANDROID_PLATFORM_SDK_VERSION > 16
return window->cancelBuffer(window, buffer, fenceFd);
#else
return window->cancelBuffer(window, buffer);
#endif
}
FrameBufferAndroid::FrameBufferAndroid(ANativeWindow* window, int width, int height)
: FrameBuffer(width, height, false, false),
nativeWindow(window), buffer(nullptr)
{
nativeWindow->common.incRef(&nativeWindow->common);
native_window_set_usage(nativeWindow, GRALLOC_USAGE_SW_READ_OFTEN | GRALLOC_USAGE_SW_WRITE_OFTEN);
}
FrameBufferAndroid::~FrameBufferAndroid()
{
nativeWindow->common.decRef(&nativeWindow->common);
}
void FrameBufferAndroid::blit(sw::Surface *source, const Rect *sourceRect, const Rect *destRect)
{
copy(source);
if(buffer)
{
if(framebuffer)
{
framebuffer = nullptr;
unlock();
}
queueBuffer(nativeWindow, buffer, -1);
}
}
void *FrameBufferAndroid::lock()
{
if(dequeueBuffer(nativeWindow, &buffer) != 0)
{
return nullptr;
}
if(GrallocModule::getInstance()->lock(buffer->handle,
GRALLOC_USAGE_SW_READ_OFTEN | GRALLOC_USAGE_SW_WRITE_OFTEN,
0, 0, buffer->width, buffer->height, &framebuffer) != 0)
{
TRACE("%s failed to lock buffer %p", __FUNCTION__, buffer);
return nullptr;
}
if((buffer->width < width) || (buffer->height < height))
{
TRACE("lock failed: buffer of %dx%d too small for window of %dx%d",
buffer->width, buffer->height, width, height);
return nullptr;
}
switch(buffer->format)
{
case HAL_PIXEL_FORMAT_RGB_565: format = FORMAT_R5G6B5; break;
case HAL_PIXEL_FORMAT_RGBA_8888: format = FORMAT_A8B8G8R8; break;
#if ANDROID_PLATFORM_SDK_VERSION > 16
case HAL_PIXEL_FORMAT_IMPLEMENTATION_DEFINED: format = FORMAT_X8B8G8R8; break;
#endif
case HAL_PIXEL_FORMAT_RGBX_8888: format = FORMAT_X8B8G8R8; break;
case HAL_PIXEL_FORMAT_BGRA_8888: format = FORMAT_A8R8G8B8; break;
case HAL_PIXEL_FORMAT_RGB_888:
// Frame buffers are expected to have 16-bit or 32-bit colors, not 24-bit.
TRACE("Unsupported frame buffer format RGB_888"); ASSERT(false);
format = FORMAT_R8G8B8; // Wrong component order.
break;
default:
TRACE("Unsupported frame buffer format %d", buffer->format); ASSERT(false);
format = FORMAT_NULL;
break;
}
stride = buffer->stride * Surface::bytes(format);
return framebuffer;
}
void FrameBufferAndroid::unlock()
{
if(!buffer)
{
TRACE("%s: badness unlock with no active buffer", __FUNCTION__);
return;
}
framebuffer = nullptr;
if(GrallocModule::getInstance()->unlock(buffer->handle) != 0)
{
TRACE("%s: badness unlock failed", __FUNCTION__);
}
}
}
sw::FrameBuffer *createFrameBuffer(void *display, ANativeWindow* window, int width, int height)
{
return new sw::FrameBufferAndroid(window, width, height);
}