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77a128ab87
dolphin/Source/Core/VideoBackends/Vulkan/StateTracker.cpp
Stenzek 77a128ab87 Implement experimental Vulkan backend
2016-10-01 02:40:01 +10:00

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// Copyright 2016 Dolphin Emulator Project
// Licensed under GPLv2+
// Refer to the license.txt file included.
#include "Common/Assert.h"
#include "VideoBackends/Vulkan/CommandBufferManager.h"
#include "VideoBackends/Vulkan/Constants.h"
#include "VideoBackends/Vulkan/FramebufferManager.h"
#include "VideoBackends/Vulkan/ObjectCache.h"
#include "VideoBackends/Vulkan/StateTracker.h"
#include "VideoBackends/Vulkan/StreamBuffer.h"
#include "VideoBackends/Vulkan/Util.h"
#include "VideoBackends/Vulkan/VulkanContext.h"
#include "VideoCommon/GeometryShaderManager.h"
#include "VideoCommon/PixelShaderManager.h"
#include "VideoCommon/Statistics.h"
#include "VideoCommon/VertexShaderManager.h"
#include "VideoCommon/VideoConfig.h"
namespace Vulkan
{
StateTracker::StateTracker()
{
// Set some sensible defaults
m_pipeline_state.pipeline_layout = g_object_cache->GetStandardPipelineLayout();
m_pipeline_state.rasterization_state.cull_mode = VK_CULL_MODE_NONE;
m_pipeline_state.rasterization_state.per_sample_shading = VK_FALSE;
m_pipeline_state.rasterization_state.depth_clamp = VK_FALSE;
m_pipeline_state.depth_stencil_state.test_enable = VK_TRUE;
m_pipeline_state.depth_stencil_state.write_enable = VK_TRUE;
m_pipeline_state.depth_stencil_state.compare_op = VK_COMPARE_OP_LESS;
m_pipeline_state.blend_state.blend_enable = VK_FALSE;
m_pipeline_state.blend_state.blend_op = VK_BLEND_OP_ADD;
m_pipeline_state.blend_state.src_blend = VK_BLEND_FACTOR_ONE;
m_pipeline_state.blend_state.dst_blend = VK_BLEND_FACTOR_ZERO;
m_pipeline_state.blend_state.alpha_blend_op = VK_BLEND_OP_ADD;
m_pipeline_state.blend_state.src_alpha_blend = VK_BLEND_FACTOR_ONE;
m_pipeline_state.blend_state.dst_alpha_blend = VK_BLEND_FACTOR_ZERO;
m_pipeline_state.blend_state.logic_op_enable = VK_FALSE;
m_pipeline_state.blend_state.logic_op = VK_LOGIC_OP_CLEAR;
m_pipeline_state.blend_state.write_mask = VK_COLOR_COMPONENT_R_BIT | VK_COLOR_COMPONENT_G_BIT |
VK_COLOR_COMPONENT_B_BIT | VK_COLOR_COMPONENT_A_BIT;
// Enable depth clamping if supported by driver.
if (g_ActiveConfig.backend_info.bSupportsDepthClamp)
m_pipeline_state.rasterization_state.depth_clamp = VK_TRUE;
// BBox is disabled by default.
m_pipeline_state.pipeline_layout = g_object_cache->GetStandardPipelineLayout();
m_num_active_descriptor_sets = NUM_DESCRIPTOR_SETS - 1;
m_bbox_enabled = false;
// Initialize all samplers to point by default
for (size_t i = 0; i < NUM_PIXEL_SHADER_SAMPLERS; i++)
{
m_bindings.ps_samplers[i].imageLayout = VK_IMAGE_LAYOUT_SHADER_READ_ONLY_OPTIMAL;
m_bindings.ps_samplers[i].imageView = VK_NULL_HANDLE;
m_bindings.ps_samplers[i].sampler = g_object_cache->GetPointSampler();
}
// Create the streaming uniform buffer
m_uniform_stream_buffer =
StreamBuffer::Create(VK_BUFFER_USAGE_UNIFORM_BUFFER_BIT, INITIAL_UNIFORM_STREAM_BUFFER_SIZE,
MAXIMUM_UNIFORM_STREAM_BUFFER_SIZE);
if (!m_uniform_stream_buffer)
PanicAlert("Failed to create uniform stream buffer");
// The validation layer complains if max(offsets) + max(ubo_ranges) >= ubo_size.
// To work around this we reserve the maximum buffer size at all times, but only commit
// as many bytes as we use.
m_uniform_buffer_reserve_size = sizeof(PixelShaderConstants);
m_uniform_buffer_reserve_size = Util::AlignValue(m_uniform_buffer_reserve_size,
g_vulkan_context->GetUniformBufferAlignment()) +
sizeof(VertexShaderConstants);
m_uniform_buffer_reserve_size = Util::AlignValue(m_uniform_buffer_reserve_size,
g_vulkan_context->GetUniformBufferAlignment()) +
sizeof(GeometryShaderConstants);
// Default dirty flags include all descriptors
InvalidateDescriptorSets();
SetPendingRebind();
// Set default constants
UploadAllConstants();
}
StateTracker::~StateTracker()
{
}
void StateTracker::SetVertexBuffer(VkBuffer buffer, VkDeviceSize offset)
{
if (m_vertex_buffer == buffer && m_vertex_buffer_offset == offset)
return;
m_vertex_buffer = buffer;
m_vertex_buffer_offset = offset;
m_dirty_flags |= DIRTY_FLAG_VERTEX_BUFFER;
}
void StateTracker::SetIndexBuffer(VkBuffer buffer, VkDeviceSize offset, VkIndexType type)
{
if (m_index_buffer == buffer && m_index_buffer_offset == offset && m_index_type == type)
return;
m_index_buffer = buffer;
m_index_buffer_offset = offset;
m_index_type = type;
m_dirty_flags |= DIRTY_FLAG_INDEX_BUFFER;
}
void StateTracker::SetRenderPass(VkRenderPass render_pass)
{
// Should not be changed within a render pass.
assert(!m_in_render_pass);
if (m_pipeline_state.render_pass == render_pass)
return;
m_pipeline_state.render_pass = render_pass;
m_dirty_flags |= DIRTY_FLAG_PIPELINE;
}
void StateTracker::SetFramebuffer(VkFramebuffer framebuffer, const VkRect2D& render_area)
{
// Should not be changed within a render pass.
assert(!m_in_render_pass);
m_framebuffer = framebuffer;
m_framebuffer_render_area = render_area;
}
void StateTracker::SetVertexFormat(const VertexFormat* vertex_format)
{
if (m_pipeline_state.vertex_format == vertex_format)
return;
m_pipeline_state.vertex_format = vertex_format;
m_dirty_flags |= DIRTY_FLAG_PIPELINE;
}
void StateTracker::SetPrimitiveTopology(VkPrimitiveTopology primitive_topology)
{
if (m_pipeline_state.primitive_topology == primitive_topology)
return;
m_pipeline_state.primitive_topology = primitive_topology;
m_dirty_flags |= DIRTY_FLAG_PIPELINE;
}
void StateTracker::DisableBackFaceCulling()
{
if (m_pipeline_state.rasterization_state.cull_mode == VK_CULL_MODE_NONE)
return;
m_pipeline_state.rasterization_state.cull_mode = VK_CULL_MODE_NONE;
m_dirty_flags |= DIRTY_FLAG_PIPELINE;
}
void StateTracker::SetRasterizationState(const RasterizationState& state)
{
if (m_pipeline_state.rasterization_state.bits == state.bits)
return;
m_pipeline_state.rasterization_state.bits = state.bits;
m_dirty_flags |= DIRTY_FLAG_PIPELINE;
}
void StateTracker::SetDepthStencilState(const DepthStencilState& state)
{
if (m_pipeline_state.depth_stencil_state.bits == state.bits)
return;
m_pipeline_state.depth_stencil_state.bits = state.bits;
m_dirty_flags |= DIRTY_FLAG_PIPELINE;
}
void StateTracker::SetBlendState(const BlendState& state)
{
if (m_pipeline_state.blend_state.bits == state.bits)
return;
m_pipeline_state.blend_state.bits = state.bits;
m_dirty_flags |= DIRTY_FLAG_PIPELINE;
}
bool StateTracker::CheckForShaderChanges(u32 gx_primitive_type, DSTALPHA_MODE dstalpha_mode)
{
VertexShaderUid vs_uid = GetVertexShaderUid();
PixelShaderUid ps_uid = GetPixelShaderUid(dstalpha_mode);
bool changed = false;
if (vs_uid != m_vs_uid)
{
m_pipeline_state.vs = g_object_cache->GetVertexShaderForUid(vs_uid);
m_vs_uid = vs_uid;
changed = true;
}
if (g_vulkan_context->SupportsGeometryShaders())
{
GeometryShaderUid gs_uid = GetGeometryShaderUid(gx_primitive_type);
if (gs_uid != m_gs_uid)
{
if (gs_uid.GetUidData()->IsPassthrough())
m_pipeline_state.gs = VK_NULL_HANDLE;
else
m_pipeline_state.gs = g_object_cache->GetGeometryShaderForUid(gs_uid);
m_gs_uid = gs_uid;
changed = true;
}
}
if (ps_uid != m_ps_uid)
{
m_pipeline_state.ps = g_object_cache->GetPixelShaderForUid(ps_uid, dstalpha_mode);
m_ps_uid = ps_uid;
changed = true;
}
if (m_dstalpha_mode != dstalpha_mode)
{
// Switching to/from alpha pass requires a pipeline change, since the blend state
// is overridden in the destination alpha pass.
if (m_dstalpha_mode == DSTALPHA_ALPHA_PASS || dstalpha_mode == DSTALPHA_ALPHA_PASS)
changed = true;
m_dstalpha_mode = dstalpha_mode;
}
if (changed)
m_dirty_flags |= DIRTY_FLAG_PIPELINE;
return changed;
}
void StateTracker::UpdateVertexShaderConstants()
{
if (!VertexShaderManager::dirty)
return;
// Since the other stages uniform buffers' may be still be using the earlier data,
// we can't reuse the earlier part of the buffer without re-uploading everything.
if (!m_uniform_stream_buffer->ReserveMemory(m_uniform_buffer_reserve_size,
g_vulkan_context->GetUniformBufferAlignment(), false,
false, false))
{
// Re-upload all constants to a new portion of the buffer.
UploadAllConstants();
return;
}
// Buffer allocation changed?
if (m_uniform_stream_buffer->GetBuffer() !=
m_bindings.uniform_buffer_bindings[UBO_DESCRIPTOR_SET_BINDING_VS].buffer)
{
m_bindings.uniform_buffer_bindings[UBO_DESCRIPTOR_SET_BINDING_VS].buffer =
m_uniform_stream_buffer->GetBuffer();
m_dirty_flags |= DIRTY_FLAG_VS_UBO;
}
m_bindings.uniform_buffer_offsets[UBO_DESCRIPTOR_SET_BINDING_VS] =
static_cast<uint32_t>(m_uniform_stream_buffer->GetCurrentOffset());
m_dirty_flags |= DIRTY_FLAG_DYNAMIC_OFFSETS;
memcpy(m_uniform_stream_buffer->GetCurrentHostPointer(), &VertexShaderManager::constants,
sizeof(VertexShaderConstants));
ADDSTAT(stats.thisFrame.bytesUniformStreamed, sizeof(VertexShaderConstants));
m_uniform_stream_buffer->CommitMemory(sizeof(VertexShaderConstants));
VertexShaderManager::dirty = false;
}
void StateTracker::UpdateGeometryShaderConstants()
{
// Skip updating geometry shader constants if it's not in use.
if (m_pipeline_state.gs == VK_NULL_HANDLE || !GeometryShaderManager::dirty)
return;
// Since the other stages uniform buffers' may be still be using the earlier data,
// we can't reuse the earlier part of the buffer without re-uploading everything.
if (!m_uniform_stream_buffer->ReserveMemory(m_uniform_buffer_reserve_size,
g_vulkan_context->GetUniformBufferAlignment(), false,
false, false))
{
// Re-upload all constants to a new portion of the buffer.
UploadAllConstants();
return;
}
// Buffer allocation changed?
if (m_uniform_stream_buffer->GetBuffer() !=
m_bindings.uniform_buffer_bindings[UBO_DESCRIPTOR_SET_BINDING_GS].buffer)
{
m_bindings.uniform_buffer_bindings[UBO_DESCRIPTOR_SET_BINDING_GS].buffer =
m_uniform_stream_buffer->GetBuffer();
m_dirty_flags |= DIRTY_FLAG_GS_UBO;
}
m_bindings.uniform_buffer_offsets[UBO_DESCRIPTOR_SET_BINDING_GS] =
static_cast<uint32_t>(m_uniform_stream_buffer->GetCurrentOffset());
m_dirty_flags |= DIRTY_FLAG_DYNAMIC_OFFSETS;
memcpy(m_uniform_stream_buffer->GetCurrentHostPointer(), &GeometryShaderManager::constants,
sizeof(GeometryShaderConstants));
ADDSTAT(stats.thisFrame.bytesUniformStreamed, sizeof(GeometryShaderConstants));
m_uniform_stream_buffer->CommitMemory(sizeof(GeometryShaderConstants));
GeometryShaderManager::dirty = false;
}
void StateTracker::UpdatePixelShaderConstants()
{
if (!PixelShaderManager::dirty)
return;
// Since the other stages uniform buffers' may be still be using the earlier data,
// we can't reuse the earlier part of the buffer without re-uploading everything.
if (!m_uniform_stream_buffer->ReserveMemory(m_uniform_buffer_reserve_size,
g_vulkan_context->GetUniformBufferAlignment(), false,
false, false))
{
// Re-upload all constants to a new portion of the buffer.
UploadAllConstants();
return;
}
// Buffer allocation changed?
if (m_uniform_stream_buffer->GetBuffer() !=
m_bindings.uniform_buffer_bindings[UBO_DESCRIPTOR_SET_BINDING_PS].buffer)
{
m_bindings.uniform_buffer_bindings[UBO_DESCRIPTOR_SET_BINDING_PS].buffer =
m_uniform_stream_buffer->GetBuffer();
m_dirty_flags |= DIRTY_FLAG_PS_UBO;
}
m_bindings.uniform_buffer_offsets[UBO_DESCRIPTOR_SET_BINDING_PS] =
static_cast<uint32_t>(m_uniform_stream_buffer->GetCurrentOffset());
m_dirty_flags |= DIRTY_FLAG_DYNAMIC_OFFSETS;
memcpy(m_uniform_stream_buffer->GetCurrentHostPointer(), &PixelShaderManager::constants,
sizeof(PixelShaderConstants));
ADDSTAT(stats.thisFrame.bytesUniformStreamed, sizeof(PixelShaderConstants));
m_uniform_stream_buffer->CommitMemory(sizeof(PixelShaderConstants));
PixelShaderManager::dirty = false;
}
void StateTracker::UploadAllConstants()
{
// We are free to re-use parts of the buffer now since we're uploading all constants.
size_t pixel_constants_offset = 0;
size_t vertex_constants_offset =
Util::AlignValue(pixel_constants_offset + sizeof(PixelShaderConstants),
g_vulkan_context->GetUniformBufferAlignment());
size_t geometry_constants_offset =
Util::AlignValue(vertex_constants_offset + sizeof(VertexShaderConstants),
g_vulkan_context->GetUniformBufferAlignment());
size_t total_allocation_size = geometry_constants_offset + sizeof(GeometryShaderConstants);
// Allocate everything at once.
if (!m_uniform_stream_buffer->ReserveMemory(
total_allocation_size, g_vulkan_context->GetUniformBufferAlignment(), true, true, false))
{
// If this fails, wait until the GPU has caught up.
// The only places that call constant updates are safe to have state restored.
WARN_LOG(VIDEO, "Executing command list while waiting for space in uniform buffer");
Util::ExecuteCurrentCommandsAndRestoreState(this, false);
if (!m_uniform_stream_buffer->ReserveMemory(total_allocation_size,
g_vulkan_context->GetUniformBufferAlignment(), true,
true, false))
{
PanicAlert("Failed to allocate space for constants in streaming buffer");
return;
}
}
// Update bindings
for (size_t i = 0; i < NUM_UBO_DESCRIPTOR_SET_BINDINGS; i++)
{
m_bindings.uniform_buffer_bindings[i].buffer = m_uniform_stream_buffer->GetBuffer();
m_bindings.uniform_buffer_bindings[i].offset = 0;
}
m_bindings.uniform_buffer_bindings[UBO_DESCRIPTOR_SET_BINDING_PS].range =
sizeof(PixelShaderConstants);
m_bindings.uniform_buffer_bindings[UBO_DESCRIPTOR_SET_BINDING_VS].range =
sizeof(VertexShaderConstants);
m_bindings.uniform_buffer_bindings[UBO_DESCRIPTOR_SET_BINDING_GS].range =
sizeof(GeometryShaderConstants);
// Update dynamic offsets
m_bindings.uniform_buffer_offsets[UBO_DESCRIPTOR_SET_BINDING_PS] =
static_cast<uint32_t>(m_uniform_stream_buffer->GetCurrentOffset() + pixel_constants_offset);
m_bindings.uniform_buffer_offsets[UBO_DESCRIPTOR_SET_BINDING_VS] =
static_cast<uint32_t>(m_uniform_stream_buffer->GetCurrentOffset() + vertex_constants_offset);
m_bindings.uniform_buffer_offsets[UBO_DESCRIPTOR_SET_BINDING_GS] = static_cast<uint32_t>(
m_uniform_stream_buffer->GetCurrentOffset() + geometry_constants_offset);
m_dirty_flags |= DIRTY_FLAG_ALL_DESCRIPTOR_SETS | DIRTY_FLAG_DYNAMIC_OFFSETS | DIRTY_FLAG_VS_UBO |
DIRTY_FLAG_GS_UBO | DIRTY_FLAG_PS_UBO;
// Copy the actual data in
memcpy(m_uniform_stream_buffer->GetCurrentHostPointer() + pixel_constants_offset,
&PixelShaderManager::constants, sizeof(PixelShaderConstants));
memcpy(m_uniform_stream_buffer->GetCurrentHostPointer() + vertex_constants_offset,
&VertexShaderManager::constants, sizeof(VertexShaderConstants));
memcpy(m_uniform_stream_buffer->GetCurrentHostPointer() + geometry_constants_offset,
&GeometryShaderManager::constants, sizeof(GeometryShaderConstants));
// Finally, flush buffer memory after copying
m_uniform_stream_buffer->CommitMemory(total_allocation_size);
// Clear dirty flags
VertexShaderManager::dirty = false;
GeometryShaderManager::dirty = false;
PixelShaderManager::dirty = false;
}
void StateTracker::SetTexture(size_t index, VkImageView view)
{
if (m_bindings.ps_samplers[index].imageView == view)
return;
m_bindings.ps_samplers[index].imageView = view;
m_bindings.ps_samplers[index].imageLayout = VK_IMAGE_LAYOUT_SHADER_READ_ONLY_OPTIMAL;
m_dirty_flags |= DIRTY_FLAG_PS_SAMPLERS;
}
void StateTracker::SetSampler(size_t index, VkSampler sampler)
{
if (m_bindings.ps_samplers[index].sampler == sampler)
return;
m_bindings.ps_samplers[index].sampler = sampler;
m_dirty_flags |= DIRTY_FLAG_PS_SAMPLERS;
}
void StateTracker::SetBBoxEnable(bool enable)
{
if (m_bbox_enabled == enable)
return;
// Change the number of active descriptor sets, as well as the pipeline layout
if (enable)
{
m_pipeline_state.pipeline_layout = g_object_cache->GetBBoxPipelineLayout();
m_num_active_descriptor_sets = NUM_DESCRIPTOR_SETS;
// The bbox buffer never changes, so we defer descriptor updates until it is enabled.
if (m_descriptor_sets[DESCRIPTOR_SET_SHADER_STORAGE_BUFFERS] == VK_NULL_HANDLE)
m_dirty_flags |= DIRTY_FLAG_PS_SSBO;
}
else
{
m_pipeline_state.pipeline_layout = g_object_cache->GetStandardPipelineLayout();
m_num_active_descriptor_sets = NUM_DESCRIPTOR_SETS - 1;
}
m_dirty_flags |= DIRTY_FLAG_PIPELINE | DIRTY_FLAG_DESCRIPTOR_SET_BINDING;
m_bbox_enabled = enable;
}
void StateTracker::SetBBoxBuffer(VkBuffer buffer, VkDeviceSize offset, VkDeviceSize range)
{
if (m_bindings.ps_ssbo.buffer == buffer && m_bindings.ps_ssbo.offset == offset &&
m_bindings.ps_ssbo.range == range)
{
return;
}
m_bindings.ps_ssbo.buffer = buffer;
m_bindings.ps_ssbo.offset = offset;
m_bindings.ps_ssbo.range = range;
// Defer descriptor update until bbox is actually enabled.
if (m_bbox_enabled)
m_dirty_flags |= DIRTY_FLAG_PS_SSBO;
}
void StateTracker::UnbindTexture(VkImageView view)
{
for (VkDescriptorImageInfo& it : m_bindings.ps_samplers)
{
if (it.imageView == view)
it.imageView = VK_NULL_HANDLE;
}
}
void StateTracker::InvalidateDescriptorSets()
{
m_descriptor_sets.fill(VK_NULL_HANDLE);
m_dirty_flags |= DIRTY_FLAG_ALL_DESCRIPTOR_SETS;
// Defer SSBO descriptor update until bbox is actually enabled.
if (!m_bbox_enabled)
m_dirty_flags &= ~DIRTY_FLAG_PS_SSBO;
}
void StateTracker::SetPendingRebind()
{
m_dirty_flags |= DIRTY_FLAG_DYNAMIC_OFFSETS | DIRTY_FLAG_DESCRIPTOR_SET_BINDING |
DIRTY_FLAG_PIPELINE_BINDING | DIRTY_FLAG_VERTEX_BUFFER |
DIRTY_FLAG_INDEX_BUFFER | DIRTY_FLAG_VIEWPORT | DIRTY_FLAG_SCISSOR |
DIRTY_FLAG_PIPELINE;
}
void StateTracker::BeginRenderPass()
{
if (m_in_render_pass)
return;
VkRenderPassBeginInfo begin_info = {VK_STRUCTURE_TYPE_RENDER_PASS_BEGIN_INFO,
nullptr,
m_pipeline_state.render_pass,
m_framebuffer,
m_framebuffer_render_area,
0,
nullptr};
vkCmdBeginRenderPass(g_command_buffer_mgr->GetCurrentCommandBuffer(), &begin_info,
VK_SUBPASS_CONTENTS_INLINE);
m_in_render_pass = true;
}
void StateTracker::EndRenderPass()
{
if (!m_in_render_pass)
return;
vkCmdEndRenderPass(g_command_buffer_mgr->GetCurrentCommandBuffer());
m_in_render_pass = false;
}
void StateTracker::SetViewport(const VkViewport& viewport)
{
if (memcmp(&m_viewport, &viewport, sizeof(viewport)) == 0)
return;
m_viewport = viewport;
m_dirty_flags |= DIRTY_FLAG_VIEWPORT;
}
void StateTracker::SetScissor(const VkRect2D& scissor)
{
if (memcmp(&m_scissor, &scissor, sizeof(scissor)) == 0)
return;
m_scissor = scissor;
m_dirty_flags |= DIRTY_FLAG_SCISSOR;
}
bool StateTracker::Bind(bool rebind_all /*= false*/)
{
// Get new pipeline object if any parts have changed
if (m_dirty_flags & DIRTY_FLAG_PIPELINE && !UpdatePipeline())
{
ERROR_LOG(VIDEO, "Failed to get pipeline object, skipping draw");
return false;
}
// Get a new descriptor set if any parts have changed
if (m_dirty_flags & DIRTY_FLAG_ALL_DESCRIPTOR_SETS && !UpdateDescriptorSet())
{
// We can fail to allocate descriptors if we exhaust the pool for this command buffer.
WARN_LOG(VIDEO, "Failed to get a descriptor set, executing buffer");
// Try again after executing the current buffer.
g_command_buffer_mgr->ExecuteCommandBuffer(false, false);
InvalidateDescriptorSets();
SetPendingRebind();
if (!UpdateDescriptorSet())
{
// Something strange going on.
ERROR_LOG(VIDEO, "Failed to get descriptor set, skipping draw");
return false;
}
}
// Start render pass if not already started
if (!m_in_render_pass)
BeginRenderPass();
// Re-bind parts of the pipeline
VkCommandBuffer command_buffer = g_command_buffer_mgr->GetCurrentCommandBuffer();
if (m_dirty_flags & DIRTY_FLAG_VERTEX_BUFFER || rebind_all)
vkCmdBindVertexBuffers(command_buffer, 0, 1, &m_vertex_buffer, &m_vertex_buffer_offset);
if (m_dirty_flags & DIRTY_FLAG_INDEX_BUFFER || rebind_all)
vkCmdBindIndexBuffer(command_buffer, m_index_buffer, m_index_buffer_offset, m_index_type);
if (m_dirty_flags & DIRTY_FLAG_PIPELINE_BINDING || rebind_all)
vkCmdBindPipeline(command_buffer, VK_PIPELINE_BIND_POINT_GRAPHICS, m_pipeline_object);
if (m_dirty_flags & DIRTY_FLAG_DESCRIPTOR_SET_BINDING || rebind_all)
{
vkCmdBindDescriptorSets(command_buffer, VK_PIPELINE_BIND_POINT_GRAPHICS,
m_pipeline_state.pipeline_layout, 0, m_num_active_descriptor_sets,
m_descriptor_sets.data(), NUM_UBO_DESCRIPTOR_SET_BINDINGS,
m_bindings.uniform_buffer_offsets.data());
}
else if (m_dirty_flags & DIRTY_FLAG_DYNAMIC_OFFSETS)
{
vkCmdBindDescriptorSets(
command_buffer, VK_PIPELINE_BIND_POINT_GRAPHICS, m_pipeline_state.pipeline_layout,
DESCRIPTOR_SET_UNIFORM_BUFFERS, 1, &m_descriptor_sets[DESCRIPTOR_SET_UNIFORM_BUFFERS],
NUM_UBO_DESCRIPTOR_SET_BINDINGS, m_bindings.uniform_buffer_offsets.data());
}
if (m_dirty_flags & DIRTY_FLAG_VIEWPORT || rebind_all)
vkCmdSetViewport(command_buffer, 0, 1, &m_viewport);
if (m_dirty_flags & DIRTY_FLAG_SCISSOR || rebind_all)
vkCmdSetScissor(command_buffer, 0, 1, &m_scissor);
m_dirty_flags = 0;
return true;
}
void StateTracker::OnDraw()
{
m_draw_counter++;
// If we didn't have any CPU access last frame, do nothing.
if (m_scheduled_command_buffer_kicks.empty() || !m_allow_background_execution)
return;
// Check if this draw is scheduled to kick a command buffer.
// The draw counters will always be sorted so a binary search is possible here.
if (std::binary_search(m_scheduled_command_buffer_kicks.begin(),
m_scheduled_command_buffer_kicks.end(), m_draw_counter))
{
// Kick a command buffer on the background thread.
EndRenderPass();
g_command_buffer_mgr->ExecuteCommandBuffer(true, false);
InvalidateDescriptorSets();
SetPendingRebind();
}
}
void StateTracker::OnReadback()
{
// Check this isn't another access without any draws inbetween.
if (!m_cpu_accesses_this_frame.empty() && m_cpu_accesses_this_frame.back() == m_draw_counter)
return;
// Store the current draw counter for scheduling in OnEndFrame.
m_cpu_accesses_this_frame.emplace_back(m_draw_counter);
}
void StateTracker::OnEndFrame()
{
m_draw_counter = 0;
m_scheduled_command_buffer_kicks.clear();
// If we have no CPU access at all, leave everything in the one command buffer for maximum
// parallelism between CPU/GPU, at the cost of slightly higher latency.
if (m_cpu_accesses_this_frame.empty())
return;
// In order to reduce CPU readback latency, we want to kick a command buffer roughly halfway
// between the draw counters that invoked the readback, or every 250 draws, whichever is smaller.
if (g_ActiveConfig.iCommandBufferExecuteInterval > 0)
{
u32 last_draw_counter = 0;
u32 interval = static_cast<u32>(g_ActiveConfig.iCommandBufferExecuteInterval);
for (u32 draw_counter : m_cpu_accesses_this_frame)
{
u32 draw_count = draw_counter - last_draw_counter;
if (draw_count <= interval)
{
u32 mid_point = draw_count / 2;
m_scheduled_command_buffer_kicks.emplace_back(last_draw_counter + mid_point);
}
else
{
u32 counter = interval;
while (counter < draw_count)
{
m_scheduled_command_buffer_kicks.emplace_back(last_draw_counter + counter);
counter += interval;
}
}
}
}
#if 0
{
std::stringstream ss;
std::for_each(m_cpu_accesses_this_frame.begin(), m_cpu_accesses_this_frame.end(), [&ss](u32 idx) { ss << idx << ","; });
WARN_LOG(VIDEO, "CPU EFB accesses in last frame: %s", ss.str().c_str());
}
{
std::stringstream ss;
std::for_each(m_scheduled_command_buffer_kicks.begin(), m_scheduled_command_buffer_kicks.end(), [&ss](u32 idx) { ss << idx << ","; });
WARN_LOG(VIDEO, "Scheduled command buffer kicks: %s", ss.str().c_str());
}
#endif
m_cpu_accesses_this_frame.clear();
}
void StateTracker::SetBackgroundCommandBufferExecution(bool enabled)
{
m_allow_background_execution = enabled;
}
bool StateTracker::UpdatePipeline()
{
// We need at least a vertex and fragment shader
if (m_pipeline_state.vs == VK_NULL_HANDLE || m_pipeline_state.ps == VK_NULL_HANDLE)
return false;
// Grab a new pipeline object, this can fail
if (m_dstalpha_mode != DSTALPHA_ALPHA_PASS)
{
m_pipeline_object = g_object_cache->GetPipeline(m_pipeline_state);
if (m_pipeline_object == VK_NULL_HANDLE)
return false;
}
else
{
// We need to make a few modifications to the pipeline object, but retain
// the existing state, since we don't want to break the next draw.
PipelineInfo temp_info = m_pipeline_state;
// Skip depth writes for this pass. The results will be the same, so no
// point in overwriting depth values with the same value.
temp_info.depth_stencil_state.write_enable = VK_FALSE;
// Only allow alpha writes, and disable blending.
temp_info.blend_state.blend_enable = VK_FALSE;
temp_info.blend_state.logic_op_enable = VK_FALSE;
temp_info.blend_state.write_mask = VK_COLOR_COMPONENT_A_BIT;
m_pipeline_object = g_object_cache->GetPipeline(temp_info);
if (m_pipeline_object == VK_NULL_HANDLE)
return false;
}
m_dirty_flags |= DIRTY_FLAG_PIPELINE_BINDING;
return true;
}
bool StateTracker::UpdateDescriptorSet()
{
const size_t MAX_DESCRIPTOR_WRITES = NUM_UBO_DESCRIPTOR_SET_BINDINGS + // UBO
NUM_PIXEL_SHADER_SAMPLERS + // Samplers
1; // SSBO
std::array<VkWriteDescriptorSet, MAX_DESCRIPTOR_WRITES> writes;
u32 num_writes = 0;
if (m_dirty_flags & (DIRTY_FLAG_VS_UBO | DIRTY_FLAG_GS_UBO | DIRTY_FLAG_PS_UBO) ||
m_descriptor_sets[DESCRIPTOR_SET_UNIFORM_BUFFERS] == VK_NULL_HANDLE)
{
VkDescriptorSetLayout layout =
g_object_cache->GetDescriptorSetLayout(DESCRIPTOR_SET_UNIFORM_BUFFERS);
VkDescriptorSet set = g_command_buffer_mgr->AllocateDescriptorSet(layout);
if (set == VK_NULL_HANDLE)
return false;
for (size_t i = 0; i < NUM_UBO_DESCRIPTOR_SET_BINDINGS; i++)
{
writes[num_writes++] = {VK_STRUCTURE_TYPE_WRITE_DESCRIPTOR_SET,
nullptr,
set,
static_cast<uint32_t>(i),
0,
1,
VK_DESCRIPTOR_TYPE_UNIFORM_BUFFER_DYNAMIC,
nullptr,
&m_bindings.uniform_buffer_bindings[i],
nullptr};
}
m_descriptor_sets[DESCRIPTOR_SET_UNIFORM_BUFFERS] = set;
m_dirty_flags |= DIRTY_FLAG_DESCRIPTOR_SET_BINDING;
}
if (m_dirty_flags & DIRTY_FLAG_PS_SAMPLERS ||
m_descriptor_sets[DESCRIPTOR_SET_PIXEL_SHADER_SAMPLERS] == VK_NULL_HANDLE)
{
VkDescriptorSetLayout layout =
g_object_cache->GetDescriptorSetLayout(DESCRIPTOR_SET_PIXEL_SHADER_SAMPLERS);
VkDescriptorSet set = g_command_buffer_mgr->AllocateDescriptorSet(layout);
if (set == VK_NULL_HANDLE)
return false;
for (size_t i = 0; i < NUM_PIXEL_SHADER_SAMPLERS; i++)
{
const VkDescriptorImageInfo& info = m_bindings.ps_samplers[i];
if (info.imageView != VK_NULL_HANDLE && info.sampler != VK_NULL_HANDLE)
{
writes[num_writes++] = {VK_STRUCTURE_TYPE_WRITE_DESCRIPTOR_SET,
nullptr,
set,
static_cast<uint32_t>(i),
0,
1,
VK_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER,
&info,
nullptr,
nullptr};
}
}
m_descriptor_sets[DESCRIPTOR_SET_PIXEL_SHADER_SAMPLERS] = set;
m_dirty_flags |= DIRTY_FLAG_DESCRIPTOR_SET_BINDING;
}
if (m_bbox_enabled &&
(m_dirty_flags & DIRTY_FLAG_PS_SSBO ||
m_descriptor_sets[DESCRIPTOR_SET_SHADER_STORAGE_BUFFERS] == VK_NULL_HANDLE))
{
VkDescriptorSetLayout layout =
g_object_cache->GetDescriptorSetLayout(DESCRIPTOR_SET_SHADER_STORAGE_BUFFERS);
VkDescriptorSet set = g_command_buffer_mgr->AllocateDescriptorSet(layout);
if (set == VK_NULL_HANDLE)
return false;
writes[num_writes++] = {VK_STRUCTURE_TYPE_WRITE_DESCRIPTOR_SET,
nullptr,
set,
0,
0,
1,
VK_DESCRIPTOR_TYPE_STORAGE_BUFFER,
nullptr,
&m_bindings.ps_ssbo,
nullptr};
m_descriptor_sets[DESCRIPTOR_SET_SHADER_STORAGE_BUFFERS] = set;
m_dirty_flags |= DIRTY_FLAG_DESCRIPTOR_SET_BINDING;
}
if (num_writes > 0)
vkUpdateDescriptorSets(g_vulkan_context->GetDevice(), num_writes, writes.data(), 0, nullptr);
return true;
}
} // namespace Vulkan
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