[vlc-commits] d3d_dynamic_shader: premultiply the Colorspace and Primaries matrices

Steve Lhomme git at videolan.org
Thu Feb 18 06:46:16 UTC 2021


vlc | branch: master | Steve Lhomme <robux4 at ycbcr.xyz> | Wed Feb 17 16:51:25 2021 +0100| [e11f0233510d954a397bf3ba6bad4961053850a1] | committer: Steve Lhomme

d3d_dynamic_shader: premultiply the Colorspace and Primaries matrices

No need to multiply it for each pixel

> http://git.videolan.org/gitweb.cgi/vlc.git/?a=commit;h=e11f0233510d954a397bf3ba6bad4961053850a1
---

 modules/video_output/win32/d3d11_shaders.c      |  6 ++--
 modules/video_output/win32/d3d11_shaders.h      |  8 ++---
 modules/video_output/win32/d3d_dynamic_shader.c | 39 ++-----------------------
 modules/video_output/win32/d3d_dynamic_shader.h |  2 +-
 modules/video_output/win32/d3d_shaders.c        |  5 ++--
 modules/video_output/win32/d3d_shaders.h        |  3 +-
 modules/video_output/win32/direct3d11.c         |  4 +--
 7 files changed, 16 insertions(+), 51 deletions(-)

diff --git a/modules/video_output/win32/d3d11_shaders.c b/modules/video_output/win32/d3d11_shaders.c
index be41c60923..3c5ab832c8 100644
--- a/modules/video_output/win32/d3d11_shaders.c
+++ b/modules/video_output/win32/d3d11_shaders.c
@@ -43,11 +43,11 @@ HRESULT (D3D11_CompilePixelShaderBlob)(vlc_object_t *o, const d3d_shader_compile
                                    d3d11_device_t *d3d_dev,
                                    const display_info_t *display,
                                    video_transfer_func_t transfer,
-                                   video_color_primaries_t primaries, bool src_full_range,
-                                   d3d11_quad_t *quad, d3d_shader_blob pPSBlob[DXGI_MAX_RENDER_TARGET])
+                                   bool src_full_range,
+                                   const d3d11_quad_t *quad, d3d_shader_blob pPSBlob[DXGI_MAX_RENDER_TARGET])
 {
     return D3D_CompilePixelShader(o, compiler, d3d_dev->feature_level,
-                                  display, transfer, primaries,
+                                  display, transfer,
                                   src_full_range, quad->generic.textureFormat, pPSBlob);
 }
 
diff --git a/modules/video_output/win32/d3d11_shaders.h b/modules/video_output/win32/d3d11_shaders.h
index 57984a7215..d3605e4c60 100644
--- a/modules/video_output/win32/d3d11_shaders.h
+++ b/modules/video_output/win32/d3d11_shaders.h
@@ -55,11 +55,11 @@ typedef struct
 
 HRESULT D3D11_CompilePixelShaderBlob(vlc_object_t *, const d3d_shader_compiler_t *,
                                  d3d11_device_t *, const display_info_t *,
-                                 video_transfer_func_t, video_color_primaries_t,
+                                 video_transfer_func_t,
                                  bool src_full_range,
-                                 d3d11_quad_t *, d3d_shader_blob pPSBlob[DXGI_MAX_RENDER_TARGET]);
-#define D3D11_CompilePixelShaderBlob(a,b,c,d,e,f,g,h,i) \
-    D3D11_CompilePixelShaderBlob(VLC_OBJECT(a),b,c,d,e,f,g,h,i)
+                                 const d3d11_quad_t *, d3d_shader_blob pPSBlob[DXGI_MAX_RENDER_TARGET]);
+#define D3D11_CompilePixelShaderBlob(a,b,c,d,e,f,g,h) \
+    D3D11_CompilePixelShaderBlob(VLC_OBJECT(a),b,c,d,e,f,g,h)
 HRESULT D3D11_SetQuadPixelShader(vlc_object_t *, d3d11_device_t *,
                                  bool sharp,
                                  d3d11_quad_t *quad, d3d_shader_blob pPSBlob[DXGI_MAX_RENDER_TARGET]);
diff --git a/modules/video_output/win32/d3d_dynamic_shader.c b/modules/video_output/win32/d3d_dynamic_shader.c
index 5cde7130c1..dd991fd83c 100644
--- a/modules/video_output/win32/d3d_dynamic_shader.c
+++ b/modules/video_output/win32/d3d_dynamic_shader.c
@@ -39,7 +39,6 @@ static const char globPixelShaderDefault[] = "\
 cbuffer PS_CONSTANT_BUFFER : register(b0)\n\
 {\n\
     float4x3 Colorspace;\n\
-    float4x3 Primaries;\n\
     float Opacity;\n\
     float LuminanceScale;\n\
     float2 Boundary;\n\
@@ -65,8 +64,6 @@ struct PS_INPUT\n\
 #define DST_TRANSFER_SRGB    1\n\
 #define DST_TRANSFER_PQ      2\n\
 \n\
-#define TRANSFORM_PRIMARIES  1\n\
-\n\
 #define FULL_RANGE           1\n\
 #define STUDIO_RANGE         2\n\
 \n\
@@ -157,14 +154,6 @@ inline float3 linearToDisplay(float3 rgb) {\n\
 #endif\n\
 }\n\
 \n\
-inline float3 transformPrimaries(float4 rgb) {\n\
-#if (PRIMARIES_MODE==TRANSFORM_PRIMARIES)\n\
-    return max(mul(rgb, Primaries), 0);\n\
-#else\n\
-    return rgb.rgb;\n\
-#endif\n\
-}\n\
-\n\
 inline float3 toneMapping(float3 rgb) {\n\
     rgb = rgb * LuminanceScale;\n\
 #if (TONE_MAPPING==TONE_MAP_HABLE)\n\
@@ -266,8 +255,7 @@ float4 main( PS_INPUT In ) : SV_TARGET\n\
         sample = sampleTexture( borderSampler, In.uv );\n\
     else\n\
         sample = sampleTexture( normalSampler, In.uv );\n\
-    float3 rgb1 = max(mul(sample, Colorspace),0);\n\
-    float3 rgb = transformPrimaries(float4(rgb1, 0));\n\
+    float3 rgb = max(mul(sample, Colorspace),0);\n\
     rgb = sourceToLinear(rgb);\n\
     rgb = toneMapping(rgb);\n\
     rgb = linearToDisplay(rgb);\n\
@@ -389,7 +377,6 @@ static HRESULT CompilePixelShaderBlob(vlc_object_t *o, const d3d_shader_compiler
                                    D3D_FEATURE_LEVEL feature_level,
                                    const char *psz_sampler,
                                    const char *psz_src_to_linear,
-                                   const char *psz_primaries_transform,
                                    const char *psz_linear_to_display,
                                    const char *psz_tone_mapping,
                                    const char *psz_src_range, const char *psz_dst_range,
@@ -406,7 +393,6 @@ static HRESULT CompilePixelShaderBlob(vlc_object_t *o, const d3d_shader_compiler
          { "TONE_MAPPING",      psz_tone_mapping },
          { "SRC_TO_LINEAR",     psz_src_to_linear },
          { "LINEAR_TO_DST",     psz_linear_to_display },
-         { "PRIMARIES_MODE",    psz_primaries_transform },
          { "SAMPLE_TEXTURES",   psz_sampler },
          { "SRC_RANGE",         psz_src_range },
          { "DST_RANGE",         psz_dst_range },
@@ -433,7 +419,7 @@ HRESULT (D3D_CompilePixelShader)(vlc_object_t *o, const d3d_shader_compiler_t *c
                                  D3D_FEATURE_LEVEL feature_level,
                                  const display_info_t *display,
                                  video_transfer_func_t transfer,
-                                 video_color_primaries_t primaries, bool src_full_range,
+                                 bool src_full_range,
                                  const d3d_format_t *dxgi_fmt,
                                  d3d_shader_blob pPSBlob[DXGI_MAX_RENDER_TARGET])
 {
@@ -441,7 +427,6 @@ HRESULT (D3D_CompilePixelShader)(vlc_object_t *o, const d3d_shader_compiler_t *c
     const char *psz_sampler[DXGI_MAX_RENDER_TARGET] = {NULL, NULL};
     const char *psz_src_to_linear     = DEFAULT_NOOP;
     const char *psz_linear_to_display = DEFAULT_NOOP;
-    const char *psz_primaries_transform = DEFAULT_NOOP;
     const char *psz_tone_mapping      = DEFAULT_NOOP;
     const char *psz_src_range, *psz_dst_range;
 
@@ -602,24 +587,6 @@ HRESULT (D3D_CompilePixelShader)(vlc_object_t *o, const d3d_shader_compiler_t *c
         }
     }
 
-    if (display->primaries != primaries)
-    {
-        switch (primaries)
-        {
-        case COLOR_PRIMARIES_BT601_525:
-        case COLOR_PRIMARIES_BT601_625:
-        case COLOR_PRIMARIES_BT709:
-        case COLOR_PRIMARIES_BT2020:
-        case COLOR_PRIMARIES_DCI_P3:
-        case COLOR_PRIMARIES_FCC1953:
-            psz_primaries_transform = "TRANSFORM_PRIMARIES";
-            break;
-        default:
-            /* see STANDARD_PRIMARIES */
-            msg_Warn(o, "unhandled color primaries %d", primaries);
-        }
-    }
-
     bool dst_full_range = display->b_full_range;
     if (!DxgiIsRGBFormat(dxgi_fmt) && DxgiIsRGBFormat(display->pixelFormat))
     {
@@ -705,7 +672,6 @@ HRESULT (D3D_CompilePixelShader)(vlc_object_t *o, const d3d_shader_compiler_t *c
     hr = CompilePixelShaderBlob(o, compiler, feature_level,
                                 psz_sampler[0],
                                 psz_src_to_linear,
-                                psz_primaries_transform,
                                 psz_linear_to_display,
                                 psz_tone_mapping,
                                 psz_src_range, psz_dst_range,
@@ -716,7 +682,6 @@ HRESULT (D3D_CompilePixelShader)(vlc_object_t *o, const d3d_shader_compiler_t *c
         hr = CompilePixelShaderBlob(o, compiler, feature_level,
                                     psz_sampler[1],
                                     psz_src_to_linear,
-                                    psz_primaries_transform,
                                     psz_linear_to_display,
                                     psz_tone_mapping,
                                     psz_src_range, psz_dst_range,
diff --git a/modules/video_output/win32/d3d_dynamic_shader.h b/modules/video_output/win32/d3d_dynamic_shader.h
index 57606b4d42..2863371d47 100644
--- a/modules/video_output/win32/d3d_dynamic_shader.h
+++ b/modules/video_output/win32/d3d_dynamic_shader.h
@@ -36,7 +36,7 @@ HRESULT D3D_CompilePixelShader(vlc_object_t *, const d3d_shader_compiler_t *,
                                D3D_FEATURE_LEVEL,
                                const display_info_t *,
                                video_transfer_func_t,
-                               video_color_primaries_t, bool src_full_range,
+                               bool src_full_range,
                                const d3d_format_t *dxgi_fmt,
                                d3d_shader_blob pPSBlob[DXGI_MAX_RENDER_TARGET]);
 
diff --git a/modules/video_output/win32/d3d_shaders.c b/modules/video_output/win32/d3d_shaders.c
index cb64d3305e..ca2c349e81 100644
--- a/modules/video_output/win32/d3d_shaders.c
+++ b/modules/video_output/win32/d3d_shaders.c
@@ -450,8 +450,9 @@ void D3D_SetupQuad(vlc_object_t *o, const video_format_t *fmt, d3d_quad_t *quad,
 
     if (fmt->primaries != displayFormat->primaries)
     {
-        GetPrimariesTransform(quad->shaderConstants->Primaries, fmt->primaries,
-                              displayFormat->primaries);
+        FLOAT Primaries[4*3];
+        GetPrimariesTransform(Primaries, fmt->primaries, displayFormat->primaries);
+        MultMat43(quad->shaderConstants->Colorspace, Primaries, quad->shaderConstants->Colorspace);
     }
 }
 
diff --git a/modules/video_output/win32/d3d_shaders.h b/modules/video_output/win32/d3d_shaders.h
index 2077642742..d99ef4ca2f 100644
--- a/modules/video_output/win32/d3d_shaders.h
+++ b/modules/video_output/win32/d3d_shaders.h
@@ -46,12 +46,11 @@ typedef struct {
 /* structures passed to the pixel shader */
 typedef struct {
     FLOAT Colorspace[4*3];
-    FLOAT Primaries[4*3];
     FLOAT Opacity;
     FLOAT LuminanceScale;
     FLOAT BoundaryX;
     FLOAT BoundaryY;
-    FLOAT padding[36]; // 256 bytes alignment
+    FLOAT padding[48]; // 256 bytes alignment
 } PS_CONSTANT_BUFFER;
 
 typedef struct {
diff --git a/modules/video_output/win32/direct3d11.c b/modules/video_output/win32/direct3d11.c
index f7dbf765f7..3fc2fd1c9d 100644
--- a/modules/video_output/win32/direct3d11.c
+++ b/modules/video_output/win32/direct3d11.c
@@ -1037,7 +1037,7 @@ static int Direct3D11CreateFormatResources(vout_display_t *vd, const video_forma
 
     d3d_shader_blob pPSBlob[DXGI_MAX_RENDER_TARGET] = { 0 };
     hr = D3D11_CompilePixelShaderBlob(vd, &sys->shaders, sys->d3d_dev,
-                                  &sys->display, fmt->transfer, fmt->primaries,
+                                  &sys->display, fmt->transfer,
                                   fmt->color_range == COLOR_RANGE_FULL,
                                   &sys->picQuad, pPSBlob);
     if (FAILED(hr))
@@ -1186,7 +1186,7 @@ static int Direct3D11CreateGenericResources(vout_display_t *vd)
     {
         d3d_shader_blob pPSBlob[DXGI_MAX_RENDER_TARGET] = { 0 };
         hr = D3D11_CompilePixelShaderBlob(vd, &sys->shaders, sys->d3d_dev,
-                                      &sys->display, TRANSFER_FUNC_SRGB, COLOR_PRIMARIES_SRGB, true,
+                                      &sys->display, TRANSFER_FUNC_SRGB, true,
                                       &sys->regionQuad, pPSBlob);
         if (FAILED(hr))
         {



More information about the vlc-commits mailing list