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[Fix] (MG_Backend/DirectVulkan, ShaderTranspiler, MG_Test, TraceReplay): make iterationRP retrace pass on 64-lane Vulkan devices with subgroup-width emulation and format-aware readback

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swung0x48
2026-07-20 02:36:23 -04:00
parent e5388c0e7e
commit 68e13705c8
11 changed files with 806 additions and 52 deletions
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MobileGL/MG_Test/SanityTest.cpp
+63
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@@ -29,6 +29,7 @@
#include <MG_Backend/DirectVulkan/Renderer/VkRenderPassManager.h>
#include <MG_Backend/DirectVulkan/Renderer/VkTextureManager.h>
#include <MG_Backend/DirectVulkan/Renderer/VulkanRenderer.h>
#include <MG_Util/Math/HalfFloat.h>
#include <MG_Util/ShaderTranspiler/ShaderCompiler.h>
#include <MG_Util/ShaderTranspiler/ShaderSourceProcessor.h>
#include <MG_Util/Debug/Log.h>
@@ -731,6 +732,68 @@ TEST(DirectVulkanSanity, CommandMemoryBarrierMakesIndirectDrawCommandsVisible) {
EXPECT_EQ(storageOnlyBarrier.dstAccessMask & VK_ACCESS_INDIRECT_COMMAND_READ_BIT, 0u);
}
TEST(DirectVulkanSanity, ReadbackUsesTheSourceFormatTexelSize) {
using MobileGL::MG_Backend::DirectVulkan::VulkanRenderer;
EXPECT_EQ(VulkanRenderer::GetReadbackTexelSize(VK_FORMAT_R8G8B8A8_UNORM), 4u);
EXPECT_EQ(VulkanRenderer::GetReadbackTexelSize(VK_FORMAT_R16G16B16A16_SFLOAT), 8u);
EXPECT_EQ(VulkanRenderer::GetReadbackTexelSize(VK_FORMAT_R32G32B32A32_SFLOAT), 16u);
}
TEST(DirectVulkanSanity, ReadbackConvertsRgba8AndRgba16fPixels) {
using MobileGL::MG_Backend::DirectVulkan::VulkanRenderer;
using MobileGL::MG_Util::EncodeFloatToHalfBits;
const MobileGL::Uint8 rgba8[] = {17, 34, 51, 68, 85, 102, 119, 136};
MobileGL::Uint8 rgba8Result[sizeof(rgba8)]{};
ASSERT_TRUE(VulkanRenderer::ConvertReadbackPixels(
rgba8, VK_FORMAT_R8G8B8A8_UNORM, 2, 1, GL_RGBA, GL_UNSIGNED_BYTE,
sizeof(rgba8Result), rgba8Result));
EXPECT_TRUE(std::equal(std::begin(rgba8), std::end(rgba8), std::begin(rgba8Result)));
const MobileGL::Uint8 bgra8[] = {51, 34, 17, 68};
MobileGL::Uint8 bgra8Result[4]{};
ASSERT_TRUE(VulkanRenderer::ConvertReadbackPixels(
bgra8, VK_FORMAT_B8G8R8A8_UNORM, 1, 1, GL_RGBA, GL_UNSIGNED_BYTE,
sizeof(bgra8Result), bgra8Result));
const MobileGL::Uint8 expectedBgra8[] = {17, 34, 51, 68};
EXPECT_TRUE(std::equal(std::begin(expectedBgra8), std::end(expectedBgra8), std::begin(bgra8Result)));
const MobileGL::Uint16 rgba16f[] = {
EncodeFloatToHalfBits(-0.25f), EncodeFloatToHalfBits(0.5f), EncodeFloatToHalfBits(1.5f),
EncodeFloatToHalfBits(1.0f), EncodeFloatToHalfBits(0.25f), EncodeFloatToHalfBits(0.0f),
EncodeFloatToHalfBits(1.0f), EncodeFloatToHalfBits(0.5f),
EncodeFloatToHalfBits(0.75f), EncodeFloatToHalfBits(0.125f), EncodeFloatToHalfBits(-1.0f),
EncodeFloatToHalfBits(2.0f), EncodeFloatToHalfBits(1.0f), EncodeFloatToHalfBits(0.75f),
EncodeFloatToHalfBits(0.25f), EncodeFloatToHalfBits(0.0f),
};
constexpr MobileGL::SizeT kDestinationRowStride = 12;
MobileGL::Uint8 rgba16fResult[kDestinationRowStride * 2];
std::fill(std::begin(rgba16fResult), std::end(rgba16fResult), 0xCD);
ASSERT_TRUE(VulkanRenderer::ConvertReadbackPixels(
reinterpret_cast<const MobileGL::Uint8*>(rgba16f), VK_FORMAT_R16G16B16A16_SFLOAT,
2, 2, GL_RGBA, GL_UNSIGNED_BYTE, kDestinationRowStride, rgba16fResult));
const MobileGL::Uint8 expectedRgba16fRow0[] = {0, 128, 255, 255, 64, 0, 255, 128};
const MobileGL::Uint8 expectedRgba16fRow1[] = {191, 32, 0, 255, 255, 191, 64, 0};
EXPECT_TRUE(std::equal(std::begin(expectedRgba16fRow0), std::end(expectedRgba16fRow0),
std::begin(rgba16fResult)));
EXPECT_TRUE(std::equal(std::begin(expectedRgba16fRow1), std::end(expectedRgba16fRow1),
std::begin(rgba16fResult) + kDestinationRowStride));
EXPECT_TRUE(std::all_of(std::begin(rgba16fResult) + 8,
std::begin(rgba16fResult) + kDestinationRowStride,
[](MobileGL::Uint8 value) { return value == 0xCD; }));
MobileGL::Float rgba16fFloatResult[16]{};
ASSERT_TRUE(VulkanRenderer::ConvertReadbackPixels(
reinterpret_cast<const MobileGL::Uint8*>(rgba16f), VK_FORMAT_R16G16B16A16_SFLOAT,
2, 2, GL_RGBA, GL_FLOAT, sizeof(MobileGL::Float) * 8,
reinterpret_cast<MobileGL::Uint8*>(rgba16fFloatResult)));
EXPECT_FLOAT_EQ(rgba16fFloatResult[0], -0.25f);
EXPECT_FLOAT_EQ(rgba16fFloatResult[1], 0.5f);
EXPECT_FLOAT_EQ(rgba16fFloatResult[2], 1.5f);
EXPECT_FLOAT_EQ(rgba16fFloatResult[3], 1.0f);
}
TEST(DirectVulkanSanity, DrawIndexedIndirectCommandMatchesGlAndVulkanLayout) {
using namespace MobileGL::MG_Backend::DirectVulkan;