blob: 1c24805c155cbd827fca64dacc28910e286bb7f6 [file] [log] [blame]
// Copyright 2016 The ANGLE Project Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
// TransformFeedbackVk.h:
// Defines the class interface for TransformFeedbackVk, implementing TransformFeedbackImpl.
#include "libANGLE/renderer/TransformFeedbackImpl.h"
#include "libANGLE/renderer/vulkan/vk_helpers.h"
namespace gl
class ProgramState;
} // namespace gl
namespace rx
namespace vk
class DescriptorSetLayoutDesc;
class TransformFeedbackVk : public TransformFeedbackImpl
TransformFeedbackVk(const gl::TransformFeedbackState &state);
~TransformFeedbackVk() override;
angle::Result begin(const gl::Context *context, gl::PrimitiveMode primitiveMode) override;
angle::Result end(const gl::Context *context) override;
angle::Result pause(const gl::Context *context) override;
angle::Result resume(const gl::Context *context) override;
angle::Result bindIndexedBuffer(const gl::Context *context,
size_t index,
const gl::OffsetBindingPointer<gl::Buffer> &binding) override;
void updateDescriptorSetLayout(const gl::ProgramState &programState,
vk::DescriptorSetLayoutDesc *descSetLayoutOut) const;
void addFramebufferDependency(ContextVk *contextVk,
const gl::ProgramState &programState,
vk::FramebufferHelper *framebuffer) const;
void initDescriptorSet(ContextVk *contextVk,
size_t xfbBufferCount,
vk::BufferHelper *emptyBuffer,
VkDescriptorSet descSet) const;
void updateDescriptorSet(ContextVk *contextVk,
const gl::ProgramState &programState,
VkDescriptorSet descSet) const;
void getBufferOffsets(ContextVk *contextVk,
const gl::ProgramState &programState,
GLint drawCallFirstVertex,
int32_t *offsetsOut,
size_t offsetsSize) const;
void onBeginOrEnd(const gl::Context *context);
void writeDescriptorSet(ContextVk *contextVk,
size_t xfbBufferCount,
VkDescriptorBufferInfo *pBufferInfo,
VkDescriptorSet descSet) const;
// Cached buffer properties for faster descriptor set update and offset calculation.
struct BoundBufferRange
// Offset as provided by OffsetBindingPointer.
VkDeviceSize offset = 0;
// Size as provided by OffsetBindingPointer.
VkDeviceSize size = 0;
// Aligned offset usable for VkDescriptorBufferInfo. This value could be smaller than
// offset.
VkDeviceSize alignedOffset = 0;
gl::TransformFeedbackBuffersArray<BoundBufferRange> mBoundBufferRanges;
} // namespace rx