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// Copyright 2020 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 "DirectFBSurfaceEXT.hpp"
#include "Vulkan/VkDeviceMemory.hpp"
#include "Vulkan/VkImage.hpp"
namespace vk {
DirectFBSurfaceEXT::DirectFBSurfaceEXT(const VkDirectFBSurfaceCreateInfoEXT *pCreateInfo, void *mem)
: dfb(pCreateInfo->dfb)
, surface(pCreateInfo->surface)
{
}
void DirectFBSurfaceEXT::destroySurface(const VkAllocationCallbacks *pAllocator)
{
}
size_t DirectFBSurfaceEXT::ComputeRequiredAllocationSize(const VkDirectFBSurfaceCreateInfoEXT *pCreateInfo)
{
return 0;
}
VkResult DirectFBSurfaceEXT::getSurfaceCapabilities(VkSurfaceCapabilitiesKHR *pSurfaceCapabilities) const
{
setCommonSurfaceCapabilities(pSurfaceCapabilities);
int width, height;
surface->GetSize(surface, &width, &height);
VkExtent2D extent = { static_cast<uint32_t>(width), static_cast<uint32_t>(height) };
pSurfaceCapabilities->currentExtent = extent;
pSurfaceCapabilities->minImageExtent = extent;
pSurfaceCapabilities->maxImageExtent = extent;
return VK_SUCCESS;
}
void DirectFBSurfaceEXT::attachImage(PresentImage *image)
{
DFBSurfaceDescription desc;
desc.flags = static_cast<DFBSurfaceDescriptionFlags>(DSDESC_PIXELFORMAT | DSDESC_WIDTH | DSDESC_HEIGHT | DSDESC_PREALLOCATED);
desc.pixelformat = DSPF_RGB32;
const VkExtent3D &extent = image->getImage()->getExtent();
desc.width = extent.width;
desc.height = extent.height;
desc.preallocated[0].data = image->getImageMemory()->getOffsetPointer(0);
desc.preallocated[0].pitch = image->getImage()->rowPitchBytes(VK_IMAGE_ASPECT_COLOR_BIT, 0);
IDirectFBSurface *dfbImage;
dfb->CreateSurface(dfb, &desc, &dfbImage);
imageMap[image] = dfbImage;
}
void DirectFBSurfaceEXT::detachImage(PresentImage *image)
{
auto it = imageMap.find(image);
if(it != imageMap.end())
{
IDirectFBSurface *dfbImage = it->second;
dfbImage->Release(dfbImage);
imageMap.erase(it);
}
}
VkResult DirectFBSurfaceEXT::present(PresentImage *image)
{
auto it = imageMap.find(image);
if(it != imageMap.end())
{
IDirectFBSurface *dfbImage = it->second;
surface->Blit(surface, dfbImage, NULL, 0, 0);
surface->Flip(surface, NULL, DSFLIP_WAITFORSYNC);
}
return VK_SUCCESS;
}
} // namespace vk