gl::Error RenderbufferVk::setStorage(const gl::Context *context,
GLenum internalformat,
size_t width,
size_t height)
{
ContextVk *contextVk = vk::GetImpl(context);
RendererVk *renderer = contextVk->getRenderer();
const vk::Format &vkFormat = renderer->getFormat(internalformat);
VkDevice device = renderer->getDevice();
VkImageUsageFlags usage =
(VK_IMAGE_USAGE_COLOR_ATTACHMENT_BIT | VK_IMAGE_USAGE_TRANSFER_DST_BIT |
VK_IMAGE_USAGE_TRANSFER_SRC_BIT | VK_IMAGE_USAGE_SAMPLED_BIT);
VkImageCreateInfo imageInfo;
imageInfo.sType = VK_STRUCTURE_TYPE_IMAGE_CREATE_INFO;
imageInfo.pNext = nullptr;
imageInfo.flags = 0;
imageInfo.imageType = VK_IMAGE_TYPE_2D;
imageInfo.format = vkFormat.vkTextureFormat;
imageInfo.extent.width = static_cast<uint32_t>(width);
imageInfo.extent.height = static_cast<uint32_t>(height);
imageInfo.extent.depth = 1;
imageInfo.mipLevels = 1;
imageInfo.arrayLayers = 1;
imageInfo.samples = VK_SAMPLE_COUNT_1_BIT;
imageInfo.tiling = VK_IMAGE_TILING_OPTIMAL;
imageInfo.usage = usage;
imageInfo.sharingMode = VK_SHARING_MODE_EXCLUSIVE;
imageInfo.queueFamilyIndexCount = 0;
imageInfo.pQueueFamilyIndices = nullptr;
imageInfo.initialLayout = VK_IMAGE_LAYOUT_UNDEFINED;
ANGLE_TRY(mImage.init(device, imageInfo));
VkMemoryPropertyFlags flags = VK_MEMORY_PROPERTY_DEVICE_LOCAL_BIT;
ANGLE_TRY(vk::AllocateImageMemory(renderer, flags, &mImage, &mDeviceMemory, &mRequiredSize));
VkImageAspectFlags aspect = VK_IMAGE_ASPECT_COLOR_BIT;
// Allocate ImageView.
VkImageViewCreateInfo viewInfo;
viewInfo.sType = VK_STRUCTURE_TYPE_IMAGE_VIEW_CREATE_INFO;
viewInfo.pNext = nullptr;
viewInfo.flags = 0;
viewInfo.image = mImage.getHandle();
viewInfo.viewType = VK_IMAGE_VIEW_TYPE_2D;
viewInfo.format = vkFormat.vkTextureFormat;
viewInfo.components.r = VK_COMPONENT_SWIZZLE_R;
viewInfo.components.g = VK_COMPONENT_SWIZZLE_G;
viewInfo.components.b = VK_COMPONENT_SWIZZLE_B;
viewInfo.components.a = VK_COMPONENT_SWIZZLE_A;
viewInfo.subresourceRange.aspectMask = aspect;
viewInfo.subresourceRange.baseMipLevel = 0;
viewInfo.subresourceRange.levelCount = 1;
viewInfo.subresourceRange.baseArrayLayer = 0;
viewInfo.subresourceRange.layerCount = 1;
ANGLE_TRY(mImageView.init(device, viewInfo));
// Init RenderTarget.
mRenderTarget.extents.width = static_cast<int>(width);
mRenderTarget.extents.height = static_cast<int>(height);
mRenderTarget.extents.depth = 1;
mRenderTarget.format = &vkFormat;
mRenderTarget.image = &mImage;
mRenderTarget.imageView = &mImageView;
mRenderTarget.resource = this;
mRenderTarget.samples = VK_SAMPLE_COUNT_1_BIT; // TODO(jmadill): Multisample bits.
return gl::NoError();
}
