mirror of
https://github.com/mpv-player/mpv
synced 2024-12-25 16:33:02 +00:00
4b177bd5c2
Semi-important, because --hwdec=dxva2 outputs NV12, and we really don't want people to end up with the "old" StretchRect method. Unfortunately, I couldn't actually get it to work. It seems most D3D drivers (including the wine D3D implementation) reject D3DFMT_A8L8, and I could not find any other 2-channel 8 bit Direct3D 9 format. It seems newer D3D APIs have DXGI_FORMAT_R8G8_UNORM, but there's no way to get it in D3D9. Still pushing this; maybe it actually works on some drivers.
33 lines
982 B
HLSL
33 lines
982 B
HLSL
// Compile with:
|
|
// fxc.exe /Tps_2_0 -DUSE_420P=1 /Fhd3d_shader_420p.h d3d_shader_yuv.hlsl /Vnd3d_shader_420p
|
|
// fxc.exe /Tps_2_0 -DUSE_NV12=1 /Fhd3d_shader_nv12.h d3d_shader_yuv.hlsl /Vnd3d_shader_nv12
|
|
|
|
// Be careful with this shader. You can't use constant slots, since we don't
|
|
// load the shader with D3DX. All uniform variables are mapped to hardcoded
|
|
// constant slots.
|
|
|
|
sampler2D tex0 : register(s0);
|
|
sampler2D tex1 : register(s1);
|
|
sampler2D tex2 : register(s2);
|
|
|
|
uniform float4x4 colormatrix : register(c0);
|
|
|
|
float4 main(float2 t0 : TEXCOORD0,
|
|
float2 t1 : TEXCOORD1,
|
|
float2 t2 : TEXCOORD2)
|
|
: COLOR
|
|
{
|
|
#ifdef USE_420P
|
|
float4 c = float4(tex2D(tex0, t0).x,
|
|
tex2D(tex1, t1).x,
|
|
tex2D(tex2, t2).x,
|
|
1);
|
|
#endif
|
|
#ifdef USE_NV12
|
|
float4 c = float4(tex2D(tex0, t0).x,
|
|
tex2D(tex1, t1).xz,
|
|
1);
|
|
#endif
|
|
return mul(c, colormatrix);
|
|
}
|