From cce0cd950c3bce0d68033e57b6c22adb2d8c461b Mon Sep 17 00:00:00 2001
From: nmzik <Nmzik@mail.ru>
Date: Thu, 24 Sep 2026 18:10:19 +0400
Subject: [PATCH] videoout: add RGB10A2 PQ buffer support

Co-authored-by: Mac <me@itsmemac.com>
---
 src/graphics/host_gpu/renderer/image/imageInfo.h |  6 +++++-
 src/graphics/presentation/videoOut.cpp           | 10 ++++++++++
 2 files changed, 15 insertions(+), 1 deletion(-)

diff --git a/src/graphics/host_gpu/renderer/image/imageInfo.h b/src/graphics/host_gpu/renderer/image/imageInfo.h
index b7886acda..fd1cfad8e 100644
--- a/src/graphics/host_gpu/renderer/image/imageInfo.h
+++ b/src/graphics/host_gpu/renderer/image/imageInfo.h
@@ -329,7 +329,9 @@ struct VideoOutFormatPolicy {
 	VideoOutPixelFormatInfo info;
 };
 
-inline constexpr std::array<VideoOutFormatPolicy, 6> VIDEO_OUT_FORMAT_POLICIES {{
+inline constexpr uint64_t VIDEO_OUT_PIXEL_FORMAT_R10_G10_B10_A2_BT2100_PQ = 0x8100070422000000ull;
+
+inline constexpr std::array<VideoOutFormatPolicy, 7> VIDEO_OUT_FORMAT_POLICIES {{
     {0x8000000022000000ull,
      {vk::Format::eR8G8B8A8Srgb, Prospero::BufferFormat::k8_8_8_8Srgb, 4, false}},
     {0x8000000000000000ull,
@@ -338,6 +340,8 @@ inline constexpr std::array<VideoOutFormatPolicy, 6> VIDEO_OUT_FORMAT_POLICIES {
      {vk::Format::eA2B10G10R10UnormPack32, Prospero::BufferFormat::k10_10_10_2UNorm, 4, false}},
     {0x8100000000000000ull,
      {vk::Format::eA2R10G10B10UnormPack32, Prospero::BufferFormat::k10_10_10_2UNorm, 4, false}},
+    {VIDEO_OUT_PIXEL_FORMAT_R10_G10_B10_A2_BT2100_PQ,
+     {vk::Format::eA2B10G10R10UnormPack32, Prospero::BufferFormat::k10_10_10_2UNorm, 4, false}},
     {0xc001000622000000ull,
      {vk::Format::eR16G16B16A16Sfloat, Prospero::BufferFormat::k16_16_16_16Float, 8, false}},
     {0xc001000600000000ull,
diff --git a/src/graphics/presentation/videoOut.cpp b/src/graphics/presentation/videoOut.cpp
index 415a55e2f..4d653af74 100644
--- a/src/graphics/presentation/videoOut.cpp
+++ b/src/graphics/presentation/videoOut.cpp
@@ -24,6 +24,8 @@
 
 #include <algorithm>
 #include <array>
+#include <atomic>
+#include <fmt/format.h>
 #include <list>
 #include <thread>
 #include <vector>
@@ -541,6 +543,14 @@ Graphics::ImageInfo BufferAttributeGroup::ImageInfo(const VideoOutBuffer& buffer
 	if (!Graphics::DecodeVideoOutPixelFormat(attribute.pixel_format, pixel_format)) {
 		EXIT("unsupported video-out pixel format: 0x%016" PRIx64 "\n", attribute.pixel_format);
 	}
+	if (attribute.pixel_format == Graphics::VIDEO_OUT_PIXEL_FORMAT_R10_G10_B10_A2_BT2100_PQ) {
+		static std::atomic_flag warned = ATOMIC_FLAG_INIT;
+		if (!warned.test_and_set(std::memory_order_relaxed)) {
+			Log::WriteToConsoleAndLog(fmt::format(
+			    "Warning: HDR-to-SDR conversion is not implemented; displaying PQ video-out "
+			    "pixels unchanged (format=0x{:016x}).\n", attribute.pixel_format));
+		}
+	}
 	const auto tile_mode = Graphics::Prospero::TileMode::kRenderTarget;
 	const auto pitch =
 	    Graphics::TileGetTexturePitch(pixel_format.guest_format, attribute.width, tile_mode);