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[Fix] (DirectVulkan): fall back to immutable images when the mutable probe fails, gate robustBufferAccess behind MOBILEGL_DISABLE_ROBUST_BUFFER_ACCESS, decode R32/RG32/R16-class readback formats, and warn when shaderStorageImage*WithoutFormat is unavailable

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swung0x48
2026-07-20 02:36:26 -04:00
parent bf7b5755cc
commit 64e4840de2
6 changed files with 127 additions and 3 deletions
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MobileGL/MG_Test/SanityTest.cpp
+27
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@@ -794,6 +794,33 @@ TEST(DirectVulkanSanity, ReadbackConvertsRgba8AndRgba16fPixels) {
EXPECT_FLOAT_EQ(rgba16fFloatResult[3], 1.0f);
}
TEST(DirectVulkanSanity, ReadbackDecodesSingleChannel32BitFormats) {
using MobileGL::MG_Backend::DirectVulkan::VulkanRenderer;
// The reinterpretation feature makes R32F/R32UI-class images common readback sources
// (iterationRP custom images). Missing channels take GL defaults: 0 for GB, 1 for alpha.
const MobileGL::Float r32f[] = {0.75f, -2.0f};
MobileGL::Float r32fResult[8]{};
ASSERT_TRUE(VulkanRenderer::ConvertReadbackPixels(
reinterpret_cast<const MobileGL::Uint8*>(r32f), VK_FORMAT_R32_SFLOAT,
2, 1, GL_RGBA, GL_FLOAT, sizeof(MobileGL::Float) * 8,
reinterpret_cast<MobileGL::Uint8*>(r32fResult)));
EXPECT_FLOAT_EQ(r32fResult[0], 0.75f);
EXPECT_FLOAT_EQ(r32fResult[1], 0.0f);
EXPECT_FLOAT_EQ(r32fResult[2], 0.0f);
EXPECT_FLOAT_EQ(r32fResult[3], 1.0f);
EXPECT_FLOAT_EQ(r32fResult[4], -2.0f);
const MobileGL::Uint32 r32ui[] = {12345u};
MobileGL::Float r32uiResult[4]{};
ASSERT_TRUE(VulkanRenderer::ConvertReadbackPixels(
reinterpret_cast<const MobileGL::Uint8*>(r32ui), VK_FORMAT_R32_UINT,
1, 1, GL_RGBA, GL_FLOAT, sizeof(MobileGL::Float) * 4,
reinterpret_cast<MobileGL::Uint8*>(r32uiResult)));
EXPECT_FLOAT_EQ(r32uiResult[0], 12345.0f);
EXPECT_FLOAT_EQ(r32uiResult[3], 1.0f);
}
TEST(DirectVulkanSanity, DrawIndexedIndirectCommandMatchesGlAndVulkanLayout) {
using namespace MobileGL::MG_Backend::DirectVulkan;