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// Copyright 2022 The Android Open Source Project
//
// 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 "CompressedImageInfo.h"
#include "aemu/base/ArraySize.h"
#include "vulkan/VkFormatUtils.h"
#include "vulkan/emulated_textures/shaders/DecompressionShaders.h"
#include "vulkan/VkFormatUtils.h"
#include "vulkan/vk_enum_string_helper.h"
namespace gfxstream {
namespace vk {
namespace {
using emugl::ABORT_REASON_OTHER;
using emugl::FatalError;
// Returns x / y, rounded up. E.g. ceil_div(7, 2) == 4
// Note the potential integer overflow for large numbers.
inline constexpr uint32_t ceil_div(uint32_t x, uint32_t y) { return (x + y - 1) / y; }
VkImageView createDefaultImageView(VulkanDispatch* vk, VkDevice device, VkImage image,
VkFormat format, VkImageType imageType, uint32_t mipLevel,
uint32_t layerCount) {
VkImageViewCreateInfo imageViewInfo = {
.sType = VK_STRUCTURE_TYPE_IMAGE_VIEW_CREATE_INFO,
.image = image,
.format = format,
.components = {VK_COMPONENT_SWIZZLE_IDENTITY, VK_COMPONENT_SWIZZLE_IDENTITY,
VK_COMPONENT_SWIZZLE_IDENTITY, VK_COMPONENT_SWIZZLE_IDENTITY},
.subresourceRange =
{
.aspectMask = VK_IMAGE_ASPECT_COLOR_BIT,
.baseMipLevel = mipLevel,
.levelCount = 1,
.baseArrayLayer = 0,
.layerCount = layerCount,
},
};
switch (imageType) {
case VK_IMAGE_TYPE_1D:
imageViewInfo.viewType = VK_IMAGE_VIEW_TYPE_1D_ARRAY;
break;
case VK_IMAGE_TYPE_2D:
imageViewInfo.viewType = VK_IMAGE_VIEW_TYPE_2D_ARRAY;
break;
case VK_IMAGE_TYPE_3D:
imageViewInfo.viewType = VK_IMAGE_VIEW_TYPE_3D;
break;
default:
imageViewInfo.viewType = VK_IMAGE_VIEW_TYPE_2D_ARRAY;
break;
}
VkImageView imageView;
VkResult result = vk->vkCreateImageView(device, &imageViewInfo, nullptr, &imageView);
if (result != VK_SUCCESS) {
WARN("GPU decompression: createDefaultImageView failed: %d", result);
return VK_NULL_HANDLE;
}
return imageView;
}
VkExtent2D getBlockSize(VkFormat format) {
switch (format) {
case VK_FORMAT_ETC2_R8G8B8_UNORM_BLOCK:
case VK_FORMAT_ETC2_R8G8B8_SRGB_BLOCK:
case VK_FORMAT_ETC2_R8G8B8A1_UNORM_BLOCK:
case VK_FORMAT_ETC2_R8G8B8A1_SRGB_BLOCK:
case VK_FORMAT_ETC2_R8G8B8A8_UNORM_BLOCK:
case VK_FORMAT_ETC2_R8G8B8A8_SRGB_BLOCK:
case VK_FORMAT_EAC_R11_UNORM_BLOCK:
case VK_FORMAT_EAC_R11_SNORM_BLOCK:
case VK_FORMAT_EAC_R11G11_UNORM_BLOCK:
case VK_FORMAT_EAC_R11G11_SNORM_BLOCK:
return {4, 4};
case VK_FORMAT_ASTC_4x4_UNORM_BLOCK:
case VK_FORMAT_ASTC_4x4_SRGB_BLOCK:
return {4, 4};
case VK_FORMAT_ASTC_5x4_UNORM_BLOCK:
case VK_FORMAT_ASTC_5x4_SRGB_BLOCK:
return {5, 4};
case VK_FORMAT_ASTC_5x5_UNORM_BLOCK:
case VK_FORMAT_ASTC_5x5_SRGB_BLOCK:
return {5, 5};
case VK_FORMAT_ASTC_6x5_UNORM_BLOCK:
case VK_FORMAT_ASTC_6x5_SRGB_BLOCK:
return {6, 5};
case VK_FORMAT_ASTC_6x6_UNORM_BLOCK:
case VK_FORMAT_ASTC_6x6_SRGB_BLOCK:
return {6, 6};
case VK_FORMAT_ASTC_8x5_UNORM_BLOCK:
case VK_FORMAT_ASTC_8x5_SRGB_BLOCK:
return {8, 5};
case VK_FORMAT_ASTC_8x6_UNORM_BLOCK:
case VK_FORMAT_ASTC_8x6_SRGB_BLOCK:
return {8, 6};
case VK_FORMAT_ASTC_8x8_UNORM_BLOCK:
case VK_FORMAT_ASTC_8x8_SRGB_BLOCK:
return {8, 8};
case VK_FORMAT_ASTC_10x5_UNORM_BLOCK:
case VK_FORMAT_ASTC_10x5_SRGB_BLOCK:
return {10, 5};
case VK_FORMAT_ASTC_10x6_UNORM_BLOCK:
case VK_FORMAT_ASTC_10x6_SRGB_BLOCK:
return {10, 6};
case VK_FORMAT_ASTC_10x8_UNORM_BLOCK:
case VK_FORMAT_ASTC_10x8_SRGB_BLOCK:
return {10, 8};
case VK_FORMAT_ASTC_10x10_UNORM_BLOCK:
case VK_FORMAT_ASTC_10x10_SRGB_BLOCK:
return {10, 10};
case VK_FORMAT_ASTC_12x10_UNORM_BLOCK:
case VK_FORMAT_ASTC_12x10_SRGB_BLOCK:
return {12, 10};
case VK_FORMAT_ASTC_12x12_UNORM_BLOCK:
case VK_FORMAT_ASTC_12x12_SRGB_BLOCK:
return {12, 12};
default:
return {1, 1};
}
}
bool isReadableImageLayout(VkImageLayout layout) {
switch (layout) {
case VK_IMAGE_LAYOUT_GENERAL:
case VK_IMAGE_LAYOUT_SHADER_READ_ONLY_OPTIMAL:
case VK_IMAGE_LAYOUT_TRANSFER_SRC_OPTIMAL:
case VK_IMAGE_LAYOUT_READ_ONLY_OPTIMAL_KHR:
return true;
default:
return false;
}
}
bool isWritableImageLayout(VkImageLayout layout) {
switch (layout) {
case VK_IMAGE_LAYOUT_GENERAL:
case VK_IMAGE_LAYOUT_TRANSFER_DST_OPTIMAL:
return true;
default:
return false;
}
}
// Returns whether a given memory barrier puts the image in a layout where it can be read from.
bool imageWillBecomeReadable(const VkImageMemoryBarrier& barrier) {
bool fromReadable = isReadableImageLayout(barrier.oldLayout);
bool toReadable = isReadableImageLayout(barrier.newLayout);
bool toWritable = isWritableImageLayout(barrier.newLayout);
// TODO(gregschlom) This doesn't take into account that the GENERAL layout is both readable and
// writable, so this warning could incorrectly trigger some times.
if (fromReadable && toWritable) {
WARN(
"Compressed image is being transitioned from readable (%s) to writable (%s). This may "
"lead to unexpected results.",
string_VkImageLayout(barrier.oldLayout), string_VkImageLayout(barrier.newLayout));
}
// If we're transitioning from UNDEFINED, the image content is undefined, so don't try to
// decompress it.
if (barrier.oldLayout == VK_IMAGE_LAYOUT_UNDEFINED) return false;
// TODO(gregschlom): Address the corner case of GENERAL, which is both readable and writable.
// For example, the image could be transitioned only once, from UNDEFINED to GENERAL.
// Currently, there is no way to perform decompression in this case.
return toReadable;
}
bool isCompressedFormat(VkFormat format) {
return gfxstream::vk::isAstc(format) || gfxstream::vk::isEtc2(format) ||
gfxstream::vk::isBc(format);
}
// Returns the format that the shader uses to write the output image
VkFormat getShaderFormat(VkFormat outputFormat) {
switch (outputFormat) {
case VK_FORMAT_R16_UNORM:
case VK_FORMAT_R16_SNORM:
case VK_FORMAT_R16G16_UNORM:
case VK_FORMAT_R16G16_SNORM:
return outputFormat;
case VK_FORMAT_BC3_UNORM_BLOCK:
case VK_FORMAT_BC3_SRGB_BLOCK:
return VK_FORMAT_R32G32B32A32_UINT;
default:
return VK_FORMAT_R8G8B8A8_UINT;
}
}
// Returns the next memory offset on a given alignment.
// Will divide by zero if alignment is zero.
VkDeviceSize nextAlignedOffset(VkDeviceSize offset, VkDeviceSize alignment) {
return ceil_div(offset, alignment) * alignment;
}
// Check that the alignment is valid:
// - sets the alignment to 1 if it's 0
// - aborts if it's not a power of 2
void checkValidAlignment(VkDeviceSize& n) {
if (n == 0) {
n = 1;
return;
}
// Check that the alignment is a power of 2
// http://www.graphics.stanford.edu/~seander/bithacks.html#DetermineIfPowerOf2
if ((n & (n - 1))) {
GFXSTREAM_ABORT(FatalError(ABORT_REASON_OTHER)) << "vkGetImageMemoryRequirements returned non-power-of-two alignment: " + std::to_string(n);
}
}
} // namespace
CompressedImageInfo::CompressedImageInfo(VkDevice device) : mDevice(device) {}
CompressedImageInfo::CompressedImageInfo(VkDevice device, const VkImageCreateInfo& createInfo,
GpuDecompressionPipelineManager* pipelineManager)
: mCompressedFormat(createInfo.format),
mOutputFormat(getOutputFormat(mCompressedFormat)),
mCompressedMipmapsFormat(getCompressedMipmapsFormat(mCompressedFormat)),
mImageType(createInfo.imageType),
mMipLevels(createInfo.mipLevels),
mExtent(createInfo.extent),
mBlock(getBlockSize(mCompressedFormat)),
mLayerCount(createInfo.arrayLayers),
mDevice(device),
mPipelineManager(pipelineManager) {}
// static
VkFormat CompressedImageInfo::getOutputFormat(VkFormat compFmt) {
switch (compFmt) {
case VK_FORMAT_ETC2_R8G8B8_UNORM_BLOCK:
case VK_FORMAT_ETC2_R8G8B8A1_UNORM_BLOCK:
case VK_FORMAT_ETC2_R8G8B8A8_UNORM_BLOCK:
return VK_FORMAT_R8G8B8A8_UNORM;
case VK_FORMAT_ETC2_R8G8B8_SRGB_BLOCK:
case VK_FORMAT_ETC2_R8G8B8A1_SRGB_BLOCK:
case VK_FORMAT_ETC2_R8G8B8A8_SRGB_BLOCK:
return VK_FORMAT_R8G8B8A8_SRGB;
case VK_FORMAT_EAC_R11_UNORM_BLOCK:
return VK_FORMAT_R16_UNORM;
case VK_FORMAT_EAC_R11_SNORM_BLOCK:
return VK_FORMAT_R16_SNORM;
case VK_FORMAT_EAC_R11G11_UNORM_BLOCK:
return VK_FORMAT_R16G16_UNORM;
case VK_FORMAT_EAC_R11G11_SNORM_BLOCK:
return VK_FORMAT_R16G16_SNORM;
case VK_FORMAT_ASTC_4x4_UNORM_BLOCK:
case VK_FORMAT_ASTC_5x4_UNORM_BLOCK:
case VK_FORMAT_ASTC_5x5_UNORM_BLOCK:
case VK_FORMAT_ASTC_6x5_UNORM_BLOCK:
case VK_FORMAT_ASTC_6x6_UNORM_BLOCK:
case VK_FORMAT_ASTC_8x5_UNORM_BLOCK:
case VK_FORMAT_ASTC_8x6_UNORM_BLOCK:
case VK_FORMAT_ASTC_8x8_UNORM_BLOCK:
case VK_FORMAT_ASTC_10x5_UNORM_BLOCK:
case VK_FORMAT_ASTC_10x6_UNORM_BLOCK:
case VK_FORMAT_ASTC_10x8_UNORM_BLOCK:
case VK_FORMAT_ASTC_10x10_UNORM_BLOCK:
case VK_FORMAT_ASTC_12x10_UNORM_BLOCK:
case VK_FORMAT_ASTC_12x12_UNORM_BLOCK:
return GpuDecompressionPipelineManager::astcDecoder() == AstcDecoder::NewBc3
? VK_FORMAT_BC3_UNORM_BLOCK
: VK_FORMAT_R8G8B8A8_UNORM;
case VK_FORMAT_ASTC_4x4_SRGB_BLOCK:
case VK_FORMAT_ASTC_5x4_SRGB_BLOCK:
case VK_FORMAT_ASTC_5x5_SRGB_BLOCK:
case VK_FORMAT_ASTC_6x5_SRGB_BLOCK:
case VK_FORMAT_ASTC_6x6_SRGB_BLOCK:
case VK_FORMAT_ASTC_8x5_SRGB_BLOCK:
case VK_FORMAT_ASTC_8x6_SRGB_BLOCK:
case VK_FORMAT_ASTC_8x8_SRGB_BLOCK:
case VK_FORMAT_ASTC_10x5_SRGB_BLOCK:
case VK_FORMAT_ASTC_10x6_SRGB_BLOCK:
case VK_FORMAT_ASTC_10x8_SRGB_BLOCK:
case VK_FORMAT_ASTC_10x10_SRGB_BLOCK:
case VK_FORMAT_ASTC_12x10_SRGB_BLOCK:
case VK_FORMAT_ASTC_12x12_SRGB_BLOCK:
return GpuDecompressionPipelineManager::astcDecoder() == AstcDecoder::NewBc3
? VK_FORMAT_BC3_SRGB_BLOCK
: VK_FORMAT_R8G8B8A8_SRGB;
default:
return compFmt;
}
}
// static
VkFormat CompressedImageInfo::getCompressedMipmapsFormat(VkFormat compFmt) {
switch (compFmt) {
case VK_FORMAT_ETC2_R8G8B8_UNORM_BLOCK:
case VK_FORMAT_ETC2_R8G8B8_SRGB_BLOCK:
case VK_FORMAT_ETC2_R8G8B8A1_UNORM_BLOCK:
case VK_FORMAT_ETC2_R8G8B8A1_SRGB_BLOCK:
return VK_FORMAT_R16G16B16A16_UINT;
case VK_FORMAT_EAC_R11_UNORM_BLOCK:
case VK_FORMAT_EAC_R11_SNORM_BLOCK:
return VK_FORMAT_R32G32_UINT;
case VK_FORMAT_ETC2_R8G8B8A8_UNORM_BLOCK:
case VK_FORMAT_ETC2_R8G8B8A8_SRGB_BLOCK:
case VK_FORMAT_EAC_R11G11_UNORM_BLOCK:
case VK_FORMAT_EAC_R11G11_SNORM_BLOCK:
case VK_FORMAT_ASTC_4x4_UNORM_BLOCK:
case VK_FORMAT_ASTC_5x4_UNORM_BLOCK:
case VK_FORMAT_ASTC_5x5_UNORM_BLOCK:
case VK_FORMAT_ASTC_6x5_UNORM_BLOCK:
case VK_FORMAT_ASTC_6x6_UNORM_BLOCK:
case VK_FORMAT_ASTC_8x5_UNORM_BLOCK:
case VK_FORMAT_ASTC_8x6_UNORM_BLOCK:
case VK_FORMAT_ASTC_8x8_UNORM_BLOCK:
case VK_FORMAT_ASTC_10x5_UNORM_BLOCK:
case VK_FORMAT_ASTC_10x6_UNORM_BLOCK:
case VK_FORMAT_ASTC_10x8_UNORM_BLOCK:
case VK_FORMAT_ASTC_10x10_UNORM_BLOCK:
case VK_FORMAT_ASTC_12x10_UNORM_BLOCK:
case VK_FORMAT_ASTC_12x12_UNORM_BLOCK:
case VK_FORMAT_ASTC_4x4_SRGB_BLOCK:
case VK_FORMAT_ASTC_5x4_SRGB_BLOCK:
case VK_FORMAT_ASTC_5x5_SRGB_BLOCK:
case VK_FORMAT_ASTC_6x5_SRGB_BLOCK:
case VK_FORMAT_ASTC_6x6_SRGB_BLOCK:
case VK_FORMAT_ASTC_8x5_SRGB_BLOCK:
case VK_FORMAT_ASTC_8x6_SRGB_BLOCK:
case VK_FORMAT_ASTC_8x8_SRGB_BLOCK:
case VK_FORMAT_ASTC_10x5_SRGB_BLOCK:
case VK_FORMAT_ASTC_10x6_SRGB_BLOCK:
case VK_FORMAT_ASTC_10x8_SRGB_BLOCK:
case VK_FORMAT_ASTC_10x10_SRGB_BLOCK:
case VK_FORMAT_ASTC_12x10_SRGB_BLOCK:
case VK_FORMAT_ASTC_12x12_SRGB_BLOCK:
return VK_FORMAT_R32G32B32A32_UINT;
default:
return compFmt;
}
}
// static
bool CompressedImageInfo::needEmulatedAlpha(VkFormat format) {
switch (format) {
case VK_FORMAT_ETC2_R8G8B8_UNORM_BLOCK:
case VK_FORMAT_ETC2_R8G8B8_SRGB_BLOCK:
return true;
default:
return false;
}
}
bool CompressedImageInfo::isEtc2() const { return gfxstream::vk::isEtc2(mCompressedFormat); }
bool CompressedImageInfo::isAstc() const { return gfxstream::vk::isAstc(mCompressedFormat); }
VkImageCreateInfo CompressedImageInfo::getOutputCreateInfo(
const VkImageCreateInfo& createInfo) const {
VkImageCreateInfo result = createInfo;
result.format = mOutputFormat;
result.flags |= VK_IMAGE_CREATE_MUTABLE_FORMAT_BIT |
// Needed for ASTC->BC3 transcoding so that we can create a BC3 image with
// VK_IMAGE_USAGE_STORAGE_BIT
VK_IMAGE_CREATE_EXTENDED_USAGE_BIT;
if (!isCompressedFormat(mOutputFormat)) {
// Need to clear this flag since the application might have specified it, but it's invalid
// on non-compressed formats
result.flags &= ~VK_IMAGE_CREATE_BLOCK_TEXEL_VIEW_COMPATIBLE_BIT;
} else {
// Need to set this flag so that we can cast the output image into a non-compressed format
// so that the decompression shader can write to it.
result.flags |= VK_IMAGE_CREATE_BLOCK_TEXEL_VIEW_COMPATIBLE_BIT;
}
result.usage |= VK_IMAGE_USAGE_STORAGE_BIT;
return result;
}
void CompressedImageInfo::createCompressedMipmapImages(VulkanDispatch* vk,
const VkImageCreateInfo& createInfo) {
if (!mCompressedMipmaps.empty()) {
return;
}
VkImageCreateInfo createInfoCopy = createInfo;
createInfoCopy.format = mCompressedMipmapsFormat;
// Note: if you change the flags here, you must also change both versions of
// on_vkGetPhysicalDeviceImageFormatProperties in VkDecoderGlobalState
// TODO(gregschlom): Remove duplicated logic.
createInfoCopy.usage |= VK_IMAGE_USAGE_STORAGE_BIT;
createInfoCopy.flags &= ~VK_IMAGE_CREATE_BLOCK_TEXEL_VIEW_COMPATIBLE_BIT;
createInfoCopy.flags |= VK_IMAGE_CREATE_MUTABLE_FORMAT_BIT;
createInfoCopy.mipLevels = 1;
mCompressedMipmaps.resize(mMipLevels);
for (uint32_t i = 0; i < mMipLevels; ++i) {
createInfoCopy.extent = compressedMipmapExtent(i);
vk->vkCreateImage(mDevice, &createInfoCopy, nullptr, &mCompressedMipmaps[i]);
}
// Compute the memory requirements for all the images (output image + compressed mipmaps)
vk->vkGetImageMemoryRequirements(mDevice, mOutputImage, &mMemoryRequirements);
checkValidAlignment(mMemoryRequirements.alignment);
std::vector<VkMemoryRequirements> mipmapsMemReqs(mMipLevels);
for (size_t i = 0; i < mMipLevels; ++i) {
vk->vkGetImageMemoryRequirements(mDevice, mCompressedMipmaps[i], &mipmapsMemReqs[i]);
checkValidAlignment(mipmapsMemReqs[i].alignment);
}
for (const auto& r : mipmapsMemReqs) {
// What we want here is the least common multiple of all the alignments. However, since
// alignments are always powers of 2, the lcm is simply the largest value.
if (r.alignment > mMemoryRequirements.alignment) {
mMemoryRequirements.alignment = r.alignment;
}
mMemoryRequirements.memoryTypeBits &= r.memoryTypeBits;
}
// At this point, we have the following:
// - mMemoryRequirements.size is the size of the output image
// - mMemoryRequirements.alignment is the least common multiple of all alignments
// - mMemoryRequirements.memoryTypeBits is the intersection of all the memoryTypeBits
// Now, compute the offsets of each mipmap image as well as the total memory size we need.
mMipmapOffsets.resize(mMipLevels);
for (size_t i = 0; i < mMipLevels; ++i) {
// This works because the alignment we request is the lcm of all alignments
mMipmapOffsets[i] =
nextAlignedOffset(mMemoryRequirements.size, mipmapsMemReqs[i].alignment);
mMemoryRequirements.size = mMipmapOffsets[i] + mipmapsMemReqs[i].size;
}
}
void CompressedImageInfo::initAstcCpuDecompression(VulkanDispatch* vk,
VkPhysicalDevice physicalDevice) {
mAstcTexture = std::make_unique<AstcTexture>(vk, mDevice, physicalDevice, mExtent, mBlock.width,
mBlock.height, &AstcCpuDecompressor::get());
}
bool CompressedImageInfo::decompressIfNeeded(VulkanDispatch* vk, VkCommandBuffer commandBuffer,
VkPipelineStageFlags srcStageMask,
VkPipelineStageFlags dstStageMask,
const VkImageMemoryBarrier& targetBarrier,
std::vector<VkImageMemoryBarrier>& outputBarriers) {
std::vector<VkImageMemoryBarrier> imageBarriers = getImageBarriers(targetBarrier);
if (!imageWillBecomeReadable(targetBarrier)) {
// We're not going to read from the image, no need to decompress it.
// Apply the target barrier to the compressed mipmaps and the decompressed image.
outputBarriers.insert(outputBarriers.end(), imageBarriers.begin(), imageBarriers.end());
return false;
}
VkResult result = initializeDecompressionPipeline(vk, mDevice);
if (result != VK_SUCCESS) {
WARN("Failed to initialize pipeline for texture decompression");
return false;
}
// Transition the layout of all the compressed mipmaps so that the shader can read from them.
for (auto& barrier : imageBarriers) {
barrier.dstAccessMask = VK_ACCESS_SHADER_READ_BIT;
barrier.newLayout = VK_IMAGE_LAYOUT_GENERAL;
}
// Transition the layout of the output image so that we can write to it.
imageBarriers.back().srcAccessMask = 0;
imageBarriers.back().oldLayout = VK_IMAGE_LAYOUT_UNDEFINED;
imageBarriers.back().dstAccessMask = VK_ACCESS_SHADER_WRITE_BIT;
imageBarriers.back().newLayout = VK_IMAGE_LAYOUT_GENERAL;
// Do the layout transitions
vk->vkCmdPipelineBarrier(commandBuffer, srcStageMask, VK_PIPELINE_STAGE_COMPUTE_SHADER_BIT, 0,
0, nullptr, 0, nullptr, imageBarriers.size(), imageBarriers.data());
// Run the decompression shader
decompress(vk, commandBuffer, getImageSubresourceRange(targetBarrier.subresourceRange));
// Finally, transition the layout of all images to match the target barrier.
for (auto& barrier : imageBarriers) {
barrier.srcAccessMask = VK_ACCESS_SHADER_READ_BIT;
barrier.oldLayout = VK_IMAGE_LAYOUT_GENERAL;
barrier.dstAccessMask = targetBarrier.dstAccessMask;
barrier.newLayout = targetBarrier.newLayout;
}
// (adjust the last barrier since it's for the output image)
imageBarriers.back().srcAccessMask = VK_ACCESS_SHADER_WRITE_BIT;
// Do the layout transitions
vk->vkCmdPipelineBarrier(commandBuffer, VK_PIPELINE_STAGE_COMPUTE_SHADER_BIT, dstStageMask, 0,
0, nullptr, 0, nullptr, imageBarriers.size(), imageBarriers.data());
return true;
}
void CompressedImageInfo::decompressOnCpu(VkCommandBuffer commandBuffer, uint8_t* srcAstcData,
size_t astcDataSize, VkImage dstImage,
VkImageLayout dstImageLayout, uint32_t regionCount,
const VkBufferImageCopy* pRegions,
const VkDecoderContext& context) {
mAstcTexture->on_vkCmdCopyBufferToImage(commandBuffer, srcAstcData, astcDataSize, dstImage,
dstImageLayout, regionCount, pRegions, context);
}
void CompressedImageInfo::decompressOnCpu(VkCommandBuffer commandBuffer, uint8_t* srcAstcData, size_t astcDataSize,
const VkCopyBufferToImageInfo2* pCopyBufferToImageInfo, const VkDecoderContext& context) {
mAstcTexture->on_vkCmdCopyBufferToImage2(commandBuffer, srcAstcData, astcDataSize, pCopyBufferToImageInfo, context);
}
VkMemoryRequirements CompressedImageInfo::getMemoryRequirements() const {
return mMemoryRequirements;
}
VkResult CompressedImageInfo::bindCompressedMipmapsMemory(VulkanDispatch* vk, VkDeviceMemory memory,
VkDeviceSize memoryOffset) {
VkResult result = VK_SUCCESS;
for (size_t i = 0; i < mCompressedMipmaps.size(); i++) {
VkResult res = vk->vkBindImageMemory(mDevice, mCompressedMipmaps[i], memory,
memoryOffset + mMipmapOffsets[i]);
if (res != VK_SUCCESS) result = res;
}
return result;
}
VkBufferImageCopy CompressedImageInfo::getBufferImageCopy(
const VkBufferImageCopy& origRegion) const {
VkBufferImageCopy region = origRegion;
uint32_t mipLevel = region.imageSubresource.mipLevel;
region.imageSubresource.mipLevel = 0;
region.bufferRowLength /= mBlock.width;
region.bufferImageHeight /= mBlock.height;
region.imageOffset.x /= mBlock.width;
region.imageOffset.y /= mBlock.height;
region.imageExtent = compressedMipmapPortion(region.imageExtent, mipLevel);
return region;
}
VkBufferImageCopy2 CompressedImageInfo::getBufferImageCopy(
const VkBufferImageCopy2& origRegion) const {
VkBufferImageCopy2 region = origRegion;
uint32_t mipLevel = region.imageSubresource.mipLevel;
region.imageSubresource.mipLevel = 0;
region.bufferRowLength /= mBlock.width;
region.bufferImageHeight /= mBlock.height;
region.imageOffset.x /= mBlock.width;
region.imageOffset.y /= mBlock.height;
region.imageExtent = compressedMipmapPortion(region.imageExtent, mipLevel);
return region;
}
// static
VkImageCopy CompressedImageInfo::getCompressedMipmapsImageCopy(const VkImageCopy& origRegion,
const CompressedImageInfo& srcImg,
const CompressedImageInfo& dstImg,
bool needEmulatedSrc,
bool needEmulatedDst) {
VkImageCopy region = origRegion;
if (needEmulatedSrc) {
uint32_t mipLevel = region.srcSubresource.mipLevel;
region.srcSubresource.mipLevel = 0;
region.srcOffset.x /= srcImg.mBlock.width;
region.srcOffset.y /= srcImg.mBlock.height;
region.extent = srcImg.compressedMipmapPortion(region.extent, mipLevel);
}
if (needEmulatedDst) {
region.dstSubresource.mipLevel = 0;
region.dstOffset.x /= dstImg.mBlock.width;
region.dstOffset.y /= dstImg.mBlock.height;
}
return region;
}
VkImageCopy2 CompressedImageInfo::getCompressedMipmapsImageCopy(const VkImageCopy2& origRegion,
const CompressedImageInfo& srcImg,
const CompressedImageInfo& dstImg,
bool needEmulatedSrc,
bool needEmulatedDst) {
VkImageCopy2 region = origRegion;
if (needEmulatedSrc) {
uint32_t mipLevel = region.srcSubresource.mipLevel;
region.srcSubresource.mipLevel = 0;
region.srcOffset.x /= srcImg.mBlock.width;
region.srcOffset.y /= srcImg.mBlock.height;
region.extent = srcImg.compressedMipmapPortion(region.extent, mipLevel);
}
if (needEmulatedDst) {
region.dstSubresource.mipLevel = 0;
region.dstOffset.x /= dstImg.mBlock.width;
region.dstOffset.y /= dstImg.mBlock.height;
}
return region;
}
void CompressedImageInfo::destroy(VulkanDispatch* vk) {
for (const auto& image : mCompressedMipmaps) {
vk->vkDestroyImage(mDevice, image, nullptr);
}
vk->vkDestroyDescriptorPool(mDevice, mDecompDescriptorPool, nullptr);
for (const auto& imageView : mCompressedMipmapsImageViews) {
vk->vkDestroyImageView(mDevice, imageView, nullptr);
}
for (const auto& imageView : mOutputImageViews) {
vk->vkDestroyImageView(mDevice, imageView, nullptr);
}
vk->vkDestroyImage(mDevice, mOutputImage, nullptr);
}
std::vector<VkImageMemoryBarrier> CompressedImageInfo::getImageBarriers(
const VkImageMemoryBarrier& srcBarrier) {
const VkImageSubresourceRange range = getImageSubresourceRange(srcBarrier.subresourceRange);
std::vector<VkImageMemoryBarrier> imageBarriers;
imageBarriers.reserve(range.levelCount + 1);
// Add the barriers for the compressed mipmaps
VkImageMemoryBarrier mipmapBarrier = srcBarrier;
mipmapBarrier.subresourceRange.baseMipLevel = 0;
mipmapBarrier.subresourceRange.levelCount = 1;
imageBarriers.insert(imageBarriers.begin(), range.levelCount, mipmapBarrier);
for (uint32_t j = 0; j < range.levelCount; j++) {
imageBarriers[j].image = mCompressedMipmaps[range.baseMipLevel + j];
}
// Add a barrier for the output image
imageBarriers.push_back(srcBarrier);
imageBarriers.back().image = mOutputImage;
return imageBarriers;
}
VkImageSubresourceRange CompressedImageInfo::getImageSubresourceRange(
const VkImageSubresourceRange& range) const {
VkImageSubresourceRange result = range;
if (result.levelCount == VK_REMAINING_MIP_LEVELS) {
result.levelCount = mMipLevels - range.baseMipLevel;
}
if (result.layerCount == VK_REMAINING_ARRAY_LAYERS) {
result.layerCount = mLayerCount - range.baseArrayLayer;
}
return result;
}
VkResult CompressedImageInfo::initializeDecompressionPipeline(VulkanDispatch* vk, VkDevice device) {
if (mDecompPipelineInitialized) {
return VK_SUCCESS;
}
mDecompPipeline = mPipelineManager->get(mCompressedFormat, mImageType);
if (mDecompPipeline == nullptr) {
ERR("Failed to initialize GPU decompression pipeline");
return VK_ERROR_INITIALIZATION_FAILED;
}
VkDescriptorPoolSize poolSize = {
.type = VK_DESCRIPTOR_TYPE_STORAGE_IMAGE,
.descriptorCount = 2 * mMipLevels,
};
VkDescriptorPoolCreateInfo dsPoolInfo = {
.sType = VK_STRUCTURE_TYPE_DESCRIPTOR_POOL_CREATE_INFO,
.flags = VK_DESCRIPTOR_POOL_CREATE_FREE_DESCRIPTOR_SET_BIT,
.maxSets = mMipLevels,
.poolSizeCount = 1,
.pPoolSizes = &poolSize,
};
VkResult result =
vk->vkCreateDescriptorPool(device, &dsPoolInfo, nullptr, &mDecompDescriptorPool);
if (result != VK_SUCCESS) {
ERR("GPU decompression error. vkCreateDescriptorPool failed: %d", result);
return result;
}
std::vector<VkDescriptorSetLayout> layouts(mMipLevels, mDecompPipeline->descriptorSetLayout());
VkDescriptorSetAllocateInfo dsInfo = {
.sType = VK_STRUCTURE_TYPE_DESCRIPTOR_SET_ALLOCATE_INFO,
.descriptorPool = mDecompDescriptorPool,
.descriptorSetCount = mMipLevels,
.pSetLayouts = layouts.data(),
};
mDecompDescriptorSets.resize(mMipLevels);
result = vk->vkAllocateDescriptorSets(device, &dsInfo, mDecompDescriptorSets.data());
if (result != VK_SUCCESS) {
ERR("GPU decompression error. vkAllocateDescriptorSets failed: %d", result);
return result;
}
VkFormat shaderFormat = getShaderFormat(mOutputFormat);
mCompressedMipmapsImageViews.resize(mMipLevels);
mOutputImageViews.resize(mMipLevels);
VkDescriptorImageInfo compressedMipmapsDescriptorImageInfo = {.imageLayout =
VK_IMAGE_LAYOUT_GENERAL};
VkDescriptorImageInfo mDecompDescriptorImageInfo = {.imageLayout = VK_IMAGE_LAYOUT_GENERAL};
VkWriteDescriptorSet writeDescriptorSets[2] = {
{
.sType = VK_STRUCTURE_TYPE_WRITE_DESCRIPTOR_SET,
.dstBinding = 0,
.descriptorCount = 1,
.descriptorType = VK_DESCRIPTOR_TYPE_STORAGE_IMAGE,
.pImageInfo = &compressedMipmapsDescriptorImageInfo,
},
{
.sType = VK_STRUCTURE_TYPE_WRITE_DESCRIPTOR_SET,
.dstBinding = 1,
.descriptorCount = 1,
.descriptorType = VK_DESCRIPTOR_TYPE_STORAGE_IMAGE,
.pImageInfo = &mDecompDescriptorImageInfo,
}};
for (uint32_t i = 0; i < mMipLevels; i++) {
mCompressedMipmapsImageViews[i] =
createDefaultImageView(vk, device, mCompressedMipmaps[i], mCompressedMipmapsFormat,
mImageType, 0, mLayerCount);
mOutputImageViews[i] = createDefaultImageView(vk, device, mOutputImage, shaderFormat,
mImageType, i, mLayerCount);
compressedMipmapsDescriptorImageInfo.imageView = mCompressedMipmapsImageViews[i];
mDecompDescriptorImageInfo.imageView = mOutputImageViews[i];
writeDescriptorSets[0].dstSet = mDecompDescriptorSets[i];
writeDescriptorSets[1].dstSet = mDecompDescriptorSets[i];
vk->vkUpdateDescriptorSets(device, 2, writeDescriptorSets, 0, nullptr);
}
mDecompPipelineInitialized = true;
return VK_SUCCESS;
}
void CompressedImageInfo::decompress(VulkanDispatch* vk, VkCommandBuffer commandBuffer,
const VkImageSubresourceRange& range) {
vk->vkCmdBindPipeline(commandBuffer, VK_PIPELINE_BIND_POINT_COMPUTE,
mDecompPipeline->pipeline());
uint32_t dispatchZ = mExtent.depth == 1 ? range.layerCount : mExtent.depth;
bool perPixel = false; // Whether the shader operates per compressed block or per pixel
if (isEtc2()) {
const Etc2PushConstant pushConstant = {
.compFormat = (uint32_t)mCompressedFormat,
.baseLayer = mExtent.depth == 1 ? range.baseArrayLayer : 0};
vk->vkCmdPushConstants(commandBuffer, mDecompPipeline->pipelineLayout(),
VK_SHADER_STAGE_COMPUTE_BIT, 0, sizeof(pushConstant), &pushConstant);
} else if (isAstc()) {
uint32_t smallBlock = false;
switch (mCompressedFormat) {
case VK_FORMAT_ASTC_4x4_UNORM_BLOCK:
case VK_FORMAT_ASTC_5x4_UNORM_BLOCK:
case VK_FORMAT_ASTC_5x5_UNORM_BLOCK:
case VK_FORMAT_ASTC_6x5_UNORM_BLOCK:
case VK_FORMAT_ASTC_4x4_SRGB_BLOCK:
case VK_FORMAT_ASTC_5x4_SRGB_BLOCK:
case VK_FORMAT_ASTC_5x5_SRGB_BLOCK:
case VK_FORMAT_ASTC_6x5_SRGB_BLOCK:
smallBlock = true;
break;
default:
break;
}
const AstcPushConstant pushConstant = {
.blockSize = {mBlock.width, mBlock.height},
.baseLayer = mExtent.depth == 1 ? range.baseArrayLayer : 0,
.smallBlock = smallBlock};
vk->vkCmdPushConstants(commandBuffer, mDecompPipeline->pipelineLayout(),
VK_SHADER_STAGE_COMPUTE_BIT, 0, sizeof(pushConstant), &pushConstant);
// The old shader is per-block, the new shaders are per-pixel
perPixel = GpuDecompressionPipelineManager::astcDecoder() != AstcDecoder::Old;
}
for (uint32_t i = range.baseMipLevel; i < range.baseMipLevel + range.levelCount; i++) {
vk->vkCmdBindDescriptorSets(commandBuffer, VK_PIPELINE_BIND_POINT_COMPUTE,
mDecompPipeline->pipelineLayout(), 0, 1,
mDecompDescriptorSets.data() + i, 0, nullptr);
VkExtent3D extent = perPixel ? mipmapExtent(i) : compressedMipmapExtent(i);
vk->vkCmdDispatch(commandBuffer, ceil_div(extent.width, 8), ceil_div(extent.height, 8),
dispatchZ);
}
}
VkExtent3D CompressedImageInfo::mipmapExtent(uint32_t level) const {
return {
.width = std::max<uint32_t>(mExtent.width >> level, 1),
.height = std::max<uint32_t>(mExtent.height >> level, 1),
.depth = std::max<uint32_t>(mExtent.depth >> level, 1),
};
}
VkExtent3D CompressedImageInfo::compressedMipmapExtent(uint32_t level) const {
VkExtent3D result = mipmapExtent(level);
result.width = ceil_div(result.width, mBlock.width);
result.height = ceil_div(result.height, mBlock.height);
return result;
}
VkExtent3D CompressedImageInfo::compressedMipmapPortion(const VkExtent3D& origExtent,
uint32_t level) const {
VkExtent3D maxExtent = compressedMipmapExtent(level);
return {
.width = std::min(ceil_div(origExtent.width, mBlock.width), maxExtent.width),
.height = std::min(ceil_div(origExtent.height, mBlock.height), maxExtent.height),
// TODO(gregschlom): this is correct for 2DArrays, but incorrect for 3D images. We should
// take the image type into account to do the right thing here. See also
// https://android-review.git.corp.google.com/c/device/generic/vulkan-cereal/+/2458549/comment/cfc7480f_912dd378/
.depth = origExtent.depth,
};
}
} // namespace vk
} // namespace gfxstream