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Persistently map filter chain UBO.

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This commit is contained in:
Hans-Kristian Arntzen 2016-07-31 18:19:35 +02:00
parent 10e864b26b
commit c0e752c53c
1 changed files with 16 additions and 10 deletions
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26
gfx/drivers_shader/shader_vulkan.cpp
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@ -175,6 +175,7 @@ class Buffer
VkBuffer buffer;
VkDeviceMemory memory;
size_t size;
void *mapped = nullptr;
};
class StaticTexture
@ -891,6 +892,7 @@ bool vulkan_filter_chain::init_ubo()
VK_BUFFER_USAGE_UNIFORM_BUFFER_BIT));
}
common.ubo_mapped = static_cast<uint8_t*>(common.ubo->map());
return true;
}
@ -951,8 +953,6 @@ void vulkan_filter_chain::build_offscreen_passes(VkCommandBuffer cmd,
update_history_info();
update_feedback_info();
common.ubo_mapped = static_cast<uint8_t*>(common.ubo->map());
unsigned i;
DeferredDisposer disposer(deferred_calls[current_sync_index]);
const Texture original = {
@ -1074,9 +1074,6 @@ void vulkan_filter_chain::build_viewport_pass(
passes.back()->build_commands(disposer, cmd,
original, source, vp, mvp);
common.ubo->unmap();
common.ubo_mapped = nullptr;
// If we need to keep old frames, copy it after fragment is complete.
// TODO: We can improve pipelining by figuring out which pass is the last that reads from
// the history and dispatch the copy earlier.
@ -1154,19 +1151,27 @@ Buffer::Buffer(VkDevice device,
void *Buffer::map()
{
void *ptr = nullptr;
if (vkMapMemory(device, memory, 0, size, 0, &ptr) == VK_SUCCESS)
return ptr;
return nullptr;
if (!mapped)
{
if (vkMapMemory(device, memory, 0, size, 0, &mapped) == VK_SUCCESS)
return mapped;
else
return nullptr;
}
return mapped;
}
void Buffer::unmap()
{
vkUnmapMemory(device, memory);
if (mapped)
vkUnmapMemory(device, memory);
mapped = nullptr;
}
Buffer::~Buffer()
{
if (mapped)
unmap();
if (memory != VK_NULL_HANDLE)
vkFreeMemory(device, memory, nullptr);
if (buffer != VK_NULL_HANDLE)
@ -1807,6 +1812,7 @@ void Pass::build_semantics(VkDescriptorSet set, uint8_t *buffer,
current_framebuffer_size.width, current_framebuffer_size.height);
build_semantic_vec4(buffer, SLANG_SEMANTIC_FINAL_VIEWPORT,
unsigned(current_viewport.width), unsigned(current_viewport.height));
build_semantic_uint(buffer, SLANG_SEMANTIC_FRAME_COUNT,
frame_count_period ? uint32_t(frame_count % frame_count_period) : uint32_t(frame_count));