feat(win/video): support native YUV 4:4:4 encoding (#2533)

src_assets/windows/assets/shaders/directx/include/base_vs.hlsl

@@ -19,7 +19,7 @@ vertex_t generate_fullscreen_triangle_vertex(uint vertex_id, int rotate_texture_
         output.viewpoint_pos = float4(-1, 3, 0, 1);
         tex_coord = float2(0, -1);
     }
-    else if (vertex_id == 2) {
+    else {
         output.viewpoint_pos = float4(3, -1, 0, 1);
         tex_coord = float2(2, 1);
     }

src_assets/windows/assets/shaders/directx/include/base_vs_types.hlsl

@@ -9,4 +9,8 @@ struct vertex_t
 #else
     float2 tex_coord : TEXCOORD;
 #endif
+#ifdef PLANAR_VIEWPORTS
+    uint viewport : SV_ViewportArrayIndex;
+    nointerpolation float4 color_vec : COLOR0;
+#endif
 };

src_assets/windows/assets/shaders/directx/include/convert_yuv444_ps_base.hlsl

@@ -0,0 +1,39 @@
+Texture2D image : register(t0);
+SamplerState def_sampler : register(s0);
+
+#ifndef PLANAR_VIEWPORTS
+cbuffer color_matrix_cbuffer : register(b0) {
+    float4 color_vec_y;
+    float4 color_vec_u;
+    float4 color_vec_v;
+    float2 range_y;
+    float2 range_uv;
+};
+#endif
+
+#include "include/base_vs_types.hlsl"
+
+#ifdef PLANAR_VIEWPORTS
+uint main_ps(vertex_t input) : SV_Target
+#else
+uint4 main_ps(vertex_t input) : SV_Target
+#endif
+{
+    float3 rgb = CONVERT_FUNCTION(image.Sample(def_sampler, input.tex_coord, 0).rgb);
+
+#ifdef PLANAR_VIEWPORTS
+    // Planar R16, 10 most significant bits store the value
+    return uint(dot(input.color_vec.xyz, rgb) + input.color_vec.w) << 6;
+#else
+    float y = dot(color_vec_y.xyz, rgb) + color_vec_y.w;
+    float u = dot(color_vec_u.xyz, rgb) + color_vec_u.w;
+    float v = dot(color_vec_v.xyz, rgb) + color_vec_v.w;
+
+#ifdef Y410
+    return uint4(u, y, v, 0);
+#else
+    // AYUV
+    return uint4(v, u, y, 0);
+#endif
+#endif
+}