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Actually configure constant descriptor set.

This commit is contained in:
Ben Vanik 2016-02-21 15:20:35 -08:00
parent d57f974e2e
commit 24743bf676
1 changed files with 33 additions and 3 deletions
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36
src/xenia/gpu/vulkan/buffer_cache.cc
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@ -25,6 +25,9 @@ using xe::ui::vulkan::CheckResult;
// Space kept between tail and head when wrapping.
constexpr VkDeviceSize kDeadZone = 4 * 1024;
constexpr VkDeviceSize kConstantRegisterUniformRange =
512 * 4 * 4 + 8 * 4 + 32 * 4;
BufferCache::BufferCache(RegisterFile* register_file,
ui::vulkan::VulkanDevice* device, size_t capacity)
: register_file_(register_file),
@ -174,6 +177,34 @@ BufferCache::BufferCache(RegisterFile* register_file,
err = vkAllocateDescriptorSets(device_, &set_alloc_info,
&transient_descriptor_set_);
CheckResult(err, "vkAllocateDescriptorSets");
// Initialize descriptor set with our buffers.
VkDescriptorBufferInfo buffer_info;
buffer_info.buffer = transient_uniform_buffer_;
buffer_info.offset = 0;
buffer_info.range = kConstantRegisterUniformRange;
VkWriteDescriptorSet descriptor_writes[2];
auto& vertex_uniform_binding_write = descriptor_writes[0];
vertex_uniform_binding_write.sType = VK_STRUCTURE_TYPE_WRITE_DESCRIPTOR_SET;
vertex_uniform_binding_write.pNext = nullptr;
vertex_uniform_binding_write.dstSet = transient_descriptor_set_;
vertex_uniform_binding_write.dstBinding = 0;
vertex_uniform_binding_write.dstArrayElement = 0;
vertex_uniform_binding_write.descriptorCount = 1;
vertex_uniform_binding_write.descriptorType =
VK_DESCRIPTOR_TYPE_UNIFORM_BUFFER_DYNAMIC;
vertex_uniform_binding_write.pBufferInfo = &buffer_info;
auto& fragment_uniform_binding_write = descriptor_writes[1];
fragment_uniform_binding_write.sType = VK_STRUCTURE_TYPE_WRITE_DESCRIPTOR_SET;
fragment_uniform_binding_write.pNext = nullptr;
fragment_uniform_binding_write.dstSet = transient_descriptor_set_;
fragment_uniform_binding_write.dstBinding = 1;
fragment_uniform_binding_write.dstArrayElement = 0;
fragment_uniform_binding_write.descriptorCount = 1;
fragment_uniform_binding_write.descriptorType =
VK_DESCRIPTOR_TYPE_UNIFORM_BUFFER_DYNAMIC;
fragment_uniform_binding_write.pBufferInfo = &buffer_info;
vkUpdateDescriptorSets(device_, 2, descriptor_writes, 0, nullptr);
}
BufferCache::~BufferCache() {
@ -197,9 +228,8 @@ std::pair<VkDeviceSize, VkDeviceSize> BufferCache::UploadConstantRegisters(
// uint bool[8];
// uint loop[32];
// };
size_t total_size = xe::round_up(
static_cast<VkDeviceSize>((512 * 4 * 4) + (32 * 4) + (8 * 4)),
uniform_buffer_alignment_);
size_t total_size =
xe::round_up(kConstantRegisterUniformRange, uniform_buffer_alignment_);
auto offset = AllocateTransientData(uniform_buffer_alignment_, total_size);
if (offset == VK_WHOLE_SIZE) {
// OOM.