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render: upload the full stride-zero vertex attribute

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Co-authored-by: Brandon Strong <brandostrong@gmail.com>
This commit is contained in:
nmzik
2026-09-05 12:17:39 +04:00
parent 9641b51925
commit 6a187ac67e
1 changed files with 21 additions and 5 deletions
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src/graphics/host_gpu/renderer/renderDraw.cpp
+21 -5
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@@ -20,6 +20,7 @@
#include "graphics/host_gpu/renderer/render.h"
#include "graphics/host_gpu/renderer/renderContext.h"
#include "graphics/host_gpu/vulkanCommon.h"
#include "graphics/shader/recompiler/BufferFormat.h"
#include "graphics/shader/recompiler/ir/ShaderIR.h"
#include "graphics/shader/recompiler/ir/passes/ResourceMaterialization.h"
#include "graphics/shader/shader.h"
@@ -721,9 +722,24 @@ struct PreparedIndexBuffer {
vk::IndexType type = vk::IndexType::eUint16;
};
static uint64_t VertexBufferDescriptorSize(const ShaderVertexInputBuffer& buffer) {
return (buffer.stride != 0 ? static_cast<uint64_t>(buffer.stride) * buffer.num_records
: buffer.num_records);
static uint64_t VertexBufferDescriptorSize(const ShaderVertexInputBuffer& buffer,
const ShaderVertexInputInfo& info) {
if (buffer.stride != 0 || buffer.num_records == 0) {
return static_cast<uint64_t>(buffer.stride) * buffer.num_records;
}
uint64_t size = 0;
for (int i = 0; i < buffer.attr_num; i++) {
const auto& resource = info.resources[buffer.attr_indices[i]];
// RDNA2 OOB_SELECT=2 only checks NumRecords != 0. A constant attribute still
// fetches its entire format; NumRecords is not a byte count in this mode.
const uint64_t extent = resource.OutOfBounds() == 2
? static_cast<uint64_t>(buffer.attr_offsets[i]) +
ShaderRecompiler::Format::GetFormatInfo(resource.Format()).byte_size
: buffer.num_records;
size = std::max(size, extent);
}
return size;
}
struct VertexBufferRange {
@@ -753,7 +769,7 @@ static PreparedVertexBuffers AcquireVertexBuffers(CommandBuffer& b
uint32_t range_count = 0;
for (int i = 0; i < vs_input_info.buffers_num; i++) {
const auto& vertex = vs_input_info.buffers[i];
const auto size = VertexBufferDescriptorSize(vertex);
const auto size = VertexBufferDescriptorSize(vertex, vs_input_info);
if (size == 0) {
continue;
}
@@ -802,7 +818,7 @@ static PreparedVertexBuffers AcquireVertexBuffers(CommandBuffer& b
vk::Buffer null_buffer = nullptr;
for (int i = 0; i < vs_input_info.buffers_num; i++) {
const auto& vertex = vs_input_info.buffers[i];
const auto size = VertexBufferDescriptorSize(vertex);
const auto size = VertexBufferDescriptorSize(vertex, vs_input_info);
if (size == 0) {
if (null_buffer == nullptr) {
null_buffer = cache.GetBuffer(NULL_BUFFER_ID).Handle();