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TextureCache: Speed up descriptor writes (no more vector usage) 

WIP TextureCube uploading skeleton
This commit is contained in:
Dr. Chat 2016-06-19 21:27:30 -05:00
parent 450ca87120
commit f194d261b1
2 changed files with 64 additions and 84 deletions
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137
src/xenia/gpu/vulkan/texture_cache.cc
View File

@ -160,6 +160,11 @@ TextureCache::TextureCache(Memory* memory, RegisterFile* register_file,
invalidated_textures_sets_[0].reserve(64);
invalidated_textures_sets_[1].reserve(64);
invalidated_textures_ = &invalidated_textures_sets_[0];
std::memset(update_set_info_.image_writes, 0,
sizeof(update_set_info_.image_writes));
std::memset(update_set_info_.image_infos, 0,
sizeof(update_set_info_.image_infos));
}
TextureCache::~TextureCache() {
@ -408,17 +413,12 @@ TextureCache::Texture* TextureCache::Demand(
}
}
if (!command_buffer) {
if (!command_buffer || texture_info.dimension != Dimension::k2D) {
// Texture not found and no command buffer was passed, preventing us from
// uploading a new one.
return nullptr;
}
if (texture_info.dimension != Dimension::k2D) {
// Abort.
return nullptr;
}
// Create a new texture and cache it.
auto texture = AllocateTexture(texture_info);
if (!texture) {
@ -433,6 +433,10 @@ TextureCache::Texture* TextureCache::Demand(
uploaded = UploadTexture2D(command_buffer, completion_fence, texture,
texture_info);
} break;
case Dimension::kCube: {
} break;
default:
assert_unhandled_case(texture_info.dimension);
break;
@ -463,8 +467,11 @@ TextureCache::Texture* TextureCache::Demand(
// woods yet. This texture could either be a portion of another texture or
// vice versa. Copy any overlapping textures into this texture.
// TODO: Byte count -> pixel count (on x and y axes)
/*
for (auto it = textures_.begin(); it != textures_.end(); ++it) {
// TODO(DrChat)
}
*/
// Okay. Now that the texture is uploaded from system memory, put a writewatch
// on it to tell us if it's been modified from the guest.
@ -778,7 +785,8 @@ bool TextureCache::UploadTexture2D(
assert_true(src.dimension == Dimension::k2D);
if (!staging_buffer_.CanAcquire(src.input_length)) {
size_t unpack_length = src.output_length;
if (!staging_buffer_.CanAcquire(unpack_length)) {
// Need to have unique memory for every upload for at least one frame. If we
// run out of memory, we need to flush all queued upload commands to the
// GPU.
@ -787,7 +795,6 @@ bool TextureCache::UploadTexture2D(
}
// Grab some temporary memory for staging.
size_t unpack_length = src.output_length;
auto alloc = staging_buffer_.Acquire(unpack_length, completion_fence);
assert_not_null(alloc);
@ -896,6 +903,13 @@ bool TextureCache::UploadTexture2D(
return true;
}
bool TextureCache::UploadTextureCube(
VkCommandBuffer command_buffer,
std::shared_ptr<ui::vulkan::Fence> completion_fence, Texture* dest,
TextureInfo src) {
return false;
}
VkDescriptorSet TextureCache::PrepareTextureSet(
VkCommandBuffer command_buffer,
std::shared_ptr<ui::vulkan::Fence> completion_fence,
@ -939,74 +953,14 @@ VkDescriptorSet TextureCache::PrepareTextureSet(
return nullptr;
}
// Write all updated descriptors.
// TODO(benvanik): optimize? split into multiple sets? set per type?
// First: Reorganize and pool image update infos.
struct DescriptorInfo {
Dimension dimension;
uint32_t tf_binding_base;
std::vector<VkDescriptorImageInfo> infos;
};
std::vector<DescriptorInfo> descriptor_update_infos;
for (uint32_t i = 0; i < update_set_info->image_write_count; i++) {
auto& image_info = update_set_info->image_infos[i];
if (descriptor_update_infos.size() > 0) {
// Check last write to see if we can pool more into it.
DescriptorInfo& last_write =
descriptor_update_infos[descriptor_update_infos.size() - 1];
if (last_write.dimension == image_info.dimension &&
last_write.tf_binding_base + last_write.infos.size() ==
image_info.tf_binding) {
// Compatible! Pool into it.
last_write.infos.push_back(image_info.info);
continue;
}
}
// Push a new descriptor write entry.
DescriptorInfo desc_info;
desc_info.dimension = image_info.dimension;
desc_info.tf_binding_base = image_info.tf_binding;
desc_info.infos.push_back(image_info.info);
descriptor_update_infos.push_back(desc_info);
update_set_info->image_writes[i].dstSet = descriptor_set;
}
// Finalize the writes so they're consumable by Vulkan.
std::vector<VkWriteDescriptorSet> descriptor_writes;
descriptor_writes.resize(descriptor_update_infos.size());
for (size_t i = 0; i < descriptor_update_infos.size(); i++) {
auto& update_info = descriptor_update_infos[i];
auto& write_info = descriptor_writes[i];
std::memset(&write_info, 0, sizeof(VkWriteDescriptorSet));
write_info.sType = VK_STRUCTURE_TYPE_WRITE_DESCRIPTOR_SET;
write_info.dstSet = descriptor_set;
switch (update_info.dimension) {
case Dimension::k1D:
write_info.dstBinding = 0;
break;
case Dimension::k2D:
write_info.dstBinding = 1;
break;
case Dimension::k3D:
write_info.dstBinding = 2;
break;
case Dimension::kCube:
write_info.dstBinding = 3;
break;
}
write_info.dstArrayElement = update_info.tf_binding_base;
write_info.descriptorCount = uint32_t(update_info.infos.size());
write_info.descriptorType = VK_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER;
write_info.pImageInfo = update_info.infos.data();
}
if (descriptor_writes.size() > 0) {
vkUpdateDescriptorSets(*device_, uint32_t(descriptor_writes.size()),
descriptor_writes.data(), 0, nullptr);
// Update the descriptor set.
if (update_set_info->image_write_count > 0) {
vkUpdateDescriptorSets(*device_, update_set_info->image_write_count,
update_set_info->image_writes, 0, nullptr);
}
in_flight_sets_.push_back({descriptor_set, completion_fence});
@ -1077,13 +1031,38 @@ bool TextureCache::SetupTextureBinding(
trace_writer_->WriteMemoryRead(texture_info.guest_address,
texture_info.input_length);
auto image_info =
&update_set_info->image_infos[update_set_info->image_write_count];
auto image_write =
&update_set_info->image_infos[update_set_info->image_write_count++];
image_write->dimension = texture_info.dimension;
image_write->tf_binding = binding.fetch_constant;
image_write->info.imageView = view->view;
image_write->info.imageLayout = texture->image_layout;
image_write->info.sampler = sampler->sampler;
&update_set_info->image_writes[update_set_info->image_write_count];
update_set_info->image_write_count++;
std::memset(image_write, 0, sizeof(VkWriteDescriptorSet));
image_write->sType = VK_STRUCTURE_TYPE_WRITE_DESCRIPTOR_SET;
switch (texture_info.dimension) {
case Dimension::k1D:
image_write->dstBinding = 0;
break;
case Dimension::k2D:
image_write->dstBinding = 1;
break;
case Dimension::k3D:
image_write->dstBinding = 2;
break;
case Dimension::kCube:
image_write->dstBinding = 3;
break;
}
image_write->dstArrayElement = binding.fetch_constant;
image_write->descriptorCount = 1;
image_write->descriptorType = VK_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER;
image_write->pImageInfo = image_info;
image_info->imageView = view->view;
image_info->imageLayout = texture->image_layout;
image_info->sampler = sampler->sampler;
texture->in_flight_fence = completion_fence;
return true;

11
src/xenia/gpu/vulkan/texture_cache.h
View File

@ -153,6 +153,10 @@ class TextureCache {
std::shared_ptr<ui::vulkan::Fence> completion_fence,
Texture* dest, TextureInfo src);
bool UploadTextureCube(VkCommandBuffer command_buffer,
std::shared_ptr<ui::vulkan::Fence> completion_fence,
Texture* dest, TextureInfo src);
bool SetupTextureBindings(
VkCommandBuffer command_buffer,
std::shared_ptr<ui::vulkan::Fence> completion_fence,
@ -192,11 +196,8 @@ class TextureCache {
// This prevents duplication across the vertex and pixel shader.
uint32_t has_setup_fetch_mask;
uint32_t image_write_count = 0;
struct ImageSetInfo {
Dimension dimension;
uint32_t tf_binding;
VkDescriptorImageInfo info;
} image_infos[32];
VkWriteDescriptorSet image_writes[32];
VkDescriptorImageInfo image_infos[32];
} update_set_info_;
};