Add uniform to make post process aware of videos.

And an example effect ~ subtle AA in-game/heavy smoothing for videos.

GPU/Common/FramebufferCommon.cpp

@@ -1760,6 +1760,7 @@ void FramebufferManagerCommon::CalculatePostShaderUniforms(int bufferWidth, int
 	uniforms->pixelDelta[0] = u_pixel_delta;
 	uniforms->pixelDelta[1] = v_pixel_delta;
 	memcpy(uniforms->time, time, 4 * sizeof(float));
+	uniforms->video = textureCache_->VideoIsPlaying();
 }
 
 void FramebufferManagerCommon::GetCardboardSettings(CardboardSettings *cardboardSettings) {

GPU/Common/FramebufferCommon.h

@@ -68,6 +68,7 @@ class VulkanFBO;
 struct PostShaderUniforms {
 	float texelDelta[2]; float pixelDelta[2];
 	float time[4];
+	bool video;
 };
 
 struct VirtualFramebuffer {

GPU/Common/ShaderTranslation.cpp

@@ -83,6 +83,7 @@ cbuffer data : register(b0) {
 	float2 u_texelDelta;
 	float2 u_pixelDelta;
 	float4 u_time;
+	bool u_video;
 };
 )";
 

GPU/Common/TextureCacheCommon.h

@@ -214,7 +214,9 @@ public:
 	bool IsFakeMipmapChange() {
 		return PSP_CoreParameter().compat.flags().FakeMipmapChange && gstate.getTexLevelMode() == GE_TEXLEVEL_MODE_CONST;
 	}
-
+	bool VideoIsPlaying() {
+		return !videos_.empty();
+	}
 	virtual bool GetCurrentTextureDebug(GPUDebugBuffer &buffer, int level) { return false; }
 
 protected:

GPU/GLES/FramebufferManagerGLES.cpp

@@ -147,6 +147,7 @@ void FramebufferManagerGLES::CompilePostShader() {
 			deltaLoc_ = glsl_uniform_loc(postShaderProgram_, "u_texelDelta");
 			pixelDeltaLoc_ = glsl_uniform_loc(postShaderProgram_, "u_pixelDelta");
 			timeLoc_ = glsl_uniform_loc(postShaderProgram_, "u_time");
+			videoLoc_ = glsl_uniform_loc(postShaderProgram_, "u_video");
 			usePostShader_ = true;
 		}
 	} else {
@@ -171,9 +172,10 @@ void FramebufferManagerGLES::BindPostShader(const PostShaderUniforms &uniforms)
 		glUniform2f(deltaLoc_, uniforms.texelDelta[0], uniforms.texelDelta[1]);
 	if (pixelDeltaLoc_ != -1)
 		glUniform2f(pixelDeltaLoc_, uniforms.pixelDelta[0], uniforms.pixelDelta[1]);
-	if (timeLoc_ != -1) {
+	if (timeLoc_ != -1)
 		glUniform4fv(timeLoc_, 1, uniforms.time);
-	}
+	if (videoLoc_ != -1)
+		glUniform1f(videoLoc_, uniforms.video);
 }
 
 void FramebufferManagerGLES::DestroyDraw2DProgram() {
@@ -195,6 +197,7 @@ FramebufferManagerGLES::FramebufferManagerGLES(Draw::DrawContext *draw) :
 	draw2dprogram_(nullptr),
 	postShaderProgram_(nullptr),
 	stencilUploadProgram_(nullptr),
+	videoLoc_(-1),
 	timeLoc_(-1),
 	pixelDeltaLoc_(-1),
 	deltaLoc_(-1),

GPU/GLES/FramebufferManagerGLES.h

@@ -127,6 +127,7 @@ private:
 	GLSLProgram *postShaderProgram_;
 	GLSLProgram *stencilUploadProgram_;
 	int plainColorLoc_;
+	int videoLoc_;
 	int timeLoc_;
 	int pixelDeltaLoc_;
 	int deltaLoc_;

assets/shaders/defaultshaders.ini

@@ -76,4 +76,10 @@ Author=Hyllian (tweak by guest.r)
 Fragment=5xBR-lv2.fsh
 Vertex=5xBR.vsh
 OutputResolution=True
-Upscaling=True
+Upscaling=True
+[VideoSmoothingAA]
+Name=Video aware guest.r AA 4.o
+Author=guest.r(tweak by LunaMoo)
+Fragment=videoAA.fsh
+Vertex=fxaa.vsh
+OutputResolution=True

assets/shaders/videoAA.fsh

@@ -0,0 +1,201 @@
+/*
+   AA shader 4.o / AA shader 4.o - filtro
+   
+   Copyright (C) 2014 guest(r) - guest.r@gmail.com
+
+   This program is free software; you can redistribute it and/or
+   modify it under the terms of the GNU General Public License
+   as published by the Free Software Foundation; either version 2
+   of the License, or (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program; if not, write to the Free Software
+   Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
+
+*/
+// Modified as video aware smoothing effect for PPSSPP.
+// Some variable definitions had to be moved inside functions(and so repeated) due to glsl->hlsl auto translation failing.
+// Also auto translation fails with bool uniform, which is why u_video is defined as float.
+
+#ifdef GL_ES
+precision mediump float;
+precision mediump int;
+#endif
+
+uniform sampler2D sampler0;
+uniform float u_video;
+
+
+//===========
+varying vec2 v_texcoord0;
+
+const vec3 dt = vec3(1.0,1.0,1.0);
+
+vec3 texture2d (vec2 texcoord) {
+
+	float scale = 1.0;
+	if (u_video==1.0){
+		scale = 2.0;
+	} else {
+		scale = 7.0;
+	}
+
+	vec4 yx = vec4(1.0/480.0,1.0/272.0,-1.0/480.0,-1.0/272.0)/scale;
+	vec4 xy = vec4(2.0/480.0,2.0/272.0,-2.0/480.0,-2.0/272.0)/scale;
+
+	vec3 s00 = texture2D(sampler0, texcoord + yx.zw).xyz; 
+	vec3 s20 = texture2D(sampler0, texcoord + yx.xw).xyz; 
+	vec3 s22 = texture2D(sampler0, texcoord + yx.xy).xyz; 
+	vec3 s02 = texture2D(sampler0, texcoord + yx.zy).xyz; 
+
+	float m1=dot(abs(s00-s22),dt)+0.001;
+	float m2=dot(abs(s02-s20),dt)+0.001;
+
+	return 0.5*(m2*(s00+s22)+m1*(s02+s20))/(m1+m2);
+}
+vec3 texture2dd (vec2 texcoord) {
+
+	float scale = 1.0;
+	if (u_video==1.0){
+		scale = 2.0;
+	} else {
+		scale = 7.0;
+	}
+
+	vec4 yx = vec4(1.0/480.0,1.0/272.0,-1.0/480.0,-1.0/272.0)/scale;
+	vec4 xy = vec4(2.0/480.0,2.0/272.0,-2.0/480.0,-2.0/272.0)/scale;
+
+	vec3 c11 = texture2D(sampler0, texcoord        ).xyz; 
+	vec3 c00 = texture2D(sampler0, texcoord + xy.zw).xyz; 
+	vec3 c20 = texture2D(sampler0, texcoord + xy.xw).xyz; 
+	vec3 c22 = texture2D(sampler0, texcoord + xy.xy).xyz; 
+	vec3 c02 = texture2D(sampler0, texcoord + xy.zy).xyz; 
+	vec3 s00 = texture2D(sampler0, texcoord + yx.zw).xyz; 
+	vec3 s20 = texture2D(sampler0, texcoord + yx.xw).xyz; 
+	vec3 s22 = texture2D(sampler0, texcoord + yx.xy).xyz; 
+	vec3 s02 = texture2D(sampler0, texcoord + yx.zy).xyz; 
+
+	float d1=dot(abs(c00-c22),dt)+0.001;
+	float d2=dot(abs(c20-c02),dt)+0.001;
+	float m1=dot(abs(s00-s22),dt)+0.001;
+	float m2=dot(abs(s02-s20),dt)+0.001;
+
+	vec3 t2=(d1*(c20+c02)+d2*(c00+c22))/(2.0*(d1+d2));
+
+	return 0.25*(c11+t2+(m2*(s00+s22)+m1*(s02+s20))/(m1+m2));
+}
+
+void main() {
+
+	float scale = 7.0;
+	bool filtro = false;
+
+	if (u_video==1.0){
+		scale = 2.0;
+		filtro = true;
+	} else {
+		scale = 7.0;
+		filtro = false;
+	}
+
+	// Calculating texel coordinates
+
+	vec2 size     = vec2(480.0,272.0)*scale;
+	vec2 inv_size = vec2(1.0/480.0,1.0/272.0)/scale;
+
+	vec2 OGL2Pos = v_texcoord0 * size;
+	vec2 fp = fract(OGL2Pos);
+	vec2 dx = vec2(inv_size.x,0.0);
+	vec2 dy = vec2(0.0, inv_size.y);
+	vec2 g1 = vec2(inv_size.x,inv_size.y);
+	vec2 g2 = vec2(-inv_size.x,inv_size.y);
+
+	vec2 pC4 = floor(OGL2Pos) * inv_size + 0.5*inv_size;	
+
+	// Reading the texels
+	vec3 C0 = texture2d(pC4 - g1); 
+	vec3 C1 = texture2d(pC4 - dy);
+	vec3 C2 = texture2d(pC4 - g2);
+	vec3 C3 = texture2d(pC4 - dx);
+	vec3 C4 = texture2d(pC4     );
+	vec3 C5 = texture2d(pC4 + dx);
+	vec3 C6 = texture2d(pC4 + g2);
+	vec3 C7 = texture2d(pC4 + dy);
+	vec3 C8 = texture2d(pC4 + g1);
+
+	vec3 ul, ur, dl, dr;
+	float m1, m2;
+
+	m1 = dot(abs(C0-C4),dt)+0.001;
+	m2 = dot(abs(C1-C3),dt)+0.001;
+	ul = (m2*(C0+C4)+m1*(C1+C3))/(m1+m2);  
+
+	m1 = dot(abs(C1-C5),dt)+0.001;
+	m2 = dot(abs(C2-C4),dt)+0.001;
+	ur = (m2*(C1+C5)+m1*(C2+C4))/(m1+m2);
+
+	m1 = dot(abs(C3-C7),dt)+0.001;
+	m2 = dot(abs(C6-C4),dt)+0.001;
+	dl = (m2*(C3+C7)+m1*(C6+C4))/(m1+m2);
+
+	m1 = dot(abs(C4-C8),dt)+0.001;
+	m2 = dot(abs(C5-C7),dt)+0.001;
+	dr = (m2*(C4+C8)+m1*(C5+C7))/(m1+m2);
+
+	vec3 result = vec3(0.5*((dr*fp.x+dl*(1.0-fp.x))*fp.y+(ur*fp.x+ul*(1.0-fp.x))*(1.0-fp.y)));
+
+	if(filtro){
+		vec3 c11 = 0.5*((dr*fp.x+dl*(1.0-fp.x))*fp.y+(ur*fp.x+ul*(1.0-fp.x))*(1.0-fp.y));
+
+		inv_size = vec2(2.0/480.0,2.0/272.0)/scale;;
+
+		dx  = vec2(inv_size.x,0.0);
+		dy  = vec2(0.0,inv_size.y);
+		g1  = vec2( inv_size.x,inv_size.y);
+		g2  = vec2(-inv_size.x,inv_size.y);
+		pC4 = v_texcoord0;
+
+		C0 = texture2dd(pC4-g1); 
+		C1 = texture2dd(pC4-dy);
+		C2 = texture2dd(pC4-g2);
+		C3 = texture2dd(pC4-dx);
+		C4 = texture2dd(pC4   );
+		C5 = texture2dd(pC4+dx);
+		C6 = texture2dd(pC4+g2);
+		C7 = texture2dd(pC4+dy);
+		C8 = texture2dd(pC4+g1);
+
+		vec3 mn1 = min(min(C0,C1),C2);
+		vec3 mn2 = min(min(C3,C4),C5);
+		vec3 mn3 = min(min(C6,C7),C8);
+		vec3 mx1 = max(max(C0,C1),C2);
+		vec3 mx2 = max(max(C3,C4),C5);
+		vec3 mx3 = max(max(C6,C7),C8);
+
+		mn1 = min(min(mn1,mn2),mn3);
+		mx1 = max(max(mx1,mx2),mx3);
+
+		vec3 dif1 = abs(c11-mn1) + 0.0001*dt;
+		vec3 dif2 = abs(c11-mx1) + 0.0001*dt;
+
+		float filterparam = 2.0; 
+
+		dif1=vec3(pow(dif1.x,filterparam),pow(dif1.y,filterparam),pow(dif1.z,filterparam));
+		dif2=vec3(pow(dif2.x,filterparam),pow(dif2.y,filterparam),pow(dif2.z,filterparam));
+
+		c11.r = (dif1.x*mx1.x + dif2.x*mn1.x)/(dif1.x + dif2.x);
+		c11.g = (dif1.y*mx1.y + dif2.y*mn1.y)/(dif1.y + dif2.y);
+		c11.b = (dif1.z*mx1.z + dif2.z*mn1.z)/(dif1.z + dif2.z);
+
+		result = c11;
+	}
+
+
+	gl_FragColor.xyz=result.xyz;
+	gl_FragColor.a = 1.0;
+}