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PICA: Align vertex attributes
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@ -22,6 +22,7 @@ set(SRCS
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)
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set(HEADERS
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alignment.h
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assert.h
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bit_field.h
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bit_set.h
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22
src/common/alignment.h
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22
src/common/alignment.h
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@ -0,0 +1,22 @@
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// This file is under the public domain.
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#pragma once
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#include <cstddef>
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#include <type_traits>
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namespace Common {
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template <typename T>
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constexpr T AlignUp(T value, size_t size) {
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static_assert(std::is_unsigned<T>::value, "T must be an unsigned value.");
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return static_cast<T>(value + (size - value % size) % size);
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}
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template <typename T>
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constexpr T AlignDown(T value, size_t size) {
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static_assert(std::is_unsigned<T>::value, "T must be an unsigned value.");
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return static_cast<T>(value - value % size);
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}
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} // namespace Common
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@ -5,6 +5,7 @@
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#include <cmath>
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#include <boost/range/algorithm/fill.hpp>
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#include "common/alignment.h"
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#include "common/microprofile.h"
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#include "common/profiler.h"
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@ -210,14 +211,17 @@ static void WritePicaReg(u32 id, u32 value, u32 mask) {
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u32 attribute_index = loader_config.GetComponent(component);
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if (attribute_index < 12) {
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int element_size = attribute_config.GetElementSizeInBytes(attribute_index);
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load_address = Common::AlignUp(load_address, element_size);
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vertex_attribute_sources[attribute_index] = load_address;
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vertex_attribute_strides[attribute_index] = static_cast<u32>(loader_config.byte_count);
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vertex_attribute_formats[attribute_index] = attribute_config.GetFormat(attribute_index);
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vertex_attribute_elements[attribute_index] = attribute_config.GetNumElements(attribute_index);
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vertex_attribute_element_size[attribute_index] = attribute_config.GetElementSizeInBytes(attribute_index);
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vertex_attribute_element_size[attribute_index] = element_size;
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load_address += attribute_config.GetStride(attribute_index);
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} else if (attribute_index < 16) {
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// Attribute ids 12, 13, 14 and 15 signify 4, 8, 12 and 16-byte paddings, respectively
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load_address = Common::AlignUp(load_address, 4);
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load_address += (attribute_index - 11) * 4;
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} else {
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UNREACHABLE(); // This is truly unreachable due to the number of bits for each component
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