diff --git a/src/citra_qt/configuration/configure_enhancements.ui b/src/citra_qt/configuration/configure_enhancements.ui
index 6f644d835..08465ef29 100644
--- a/src/citra_qt/configuration/configure_enhancements.ui
+++ b/src/citra_qt/configuration/configure_enhancements.ui
@@ -199,6 +199,11 @@
xBRZ
+ -
+
+ MMPX
+
+
diff --git a/src/common/settings.cpp b/src/common/settings.cpp
index eea0a6f71..19a52263c 100644
--- a/src/common/settings.cpp
+++ b/src/common/settings.cpp
@@ -62,6 +62,8 @@ std::string_view GetTextureFilterName(TextureFilter filter) {
return "ScaleForce";
case TextureFilter::xBRZ:
return "xBRZ";
+ case TextureFilter::MMPX:
+ return "MMPX";
default:
return "Invalid";
}
diff --git a/src/common/settings.h b/src/common/settings.h
index da0b661ad..f80205ba9 100644
--- a/src/common/settings.h
+++ b/src/common/settings.h
@@ -74,6 +74,7 @@ enum class TextureFilter : u32 {
NearestNeighbor = 3,
ScaleForce = 4,
xBRZ = 5,
+ MMPX = 6
};
namespace NativeButton {
diff --git a/src/video_core/host_shaders/CMakeLists.txt b/src/video_core/host_shaders/CMakeLists.txt
index 3e3dae7c9..1f4943518 100644
--- a/src/video_core/host_shaders/CMakeLists.txt
+++ b/src/video_core/host_shaders/CMakeLists.txt
@@ -12,6 +12,7 @@ set(SHADER_FILES
texture_filtering/scale_force.frag
texture_filtering/tex_coord.vert
texture_filtering/xbrz_freescale.frag
+ texture_filtering/mmpx.frag
texture_filtering/x_gradient.frag
texture_filtering/y_gradient.frag
full_screen_triangle.vert
diff --git a/src/video_core/host_shaders/texture_filtering/mmpx.frag b/src/video_core/host_shaders/texture_filtering/mmpx.frag
new file mode 100644
index 000000000..fbfa2517b
--- /dev/null
+++ b/src/video_core/host_shaders/texture_filtering/mmpx.frag
@@ -0,0 +1,134 @@
+// Copyright 2023 Citra Emulator Project
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included.
+
+//? #version 430 core
+precision mediump float;
+
+layout(location = 0) in vec2 tex_coord;
+layout(location = 0) out vec4 frag_color;
+layout(binding = 0) uniform sampler2D tex;
+
+vec2 source_size = vec2(textureSize(tex, 0));
+vec2 pos = fract(tex_coord * source_size) - vec2(0.5, 0.5);
+vec2 coord = tex_coord - pos / source_size;
+
+vec4 src(float x, float y)
+{
+ return texture(tex, coord + vec2(x, y) * 1 / source_size);
+}
+
+float luma(vec4 col){
+ return dot(col.rgb, vec3(0.2126, 0.7152, 0.0722)) * (1 - col.a);
+}
+
+bool same(vec4 B, vec4 A0){
+ return all(equal(B, A0));
+}
+
+bool notsame(vec4 B, vec4 A0){
+ return any(notEqual(B, A0));
+}
+
+bool all_eq2(vec4 B, vec4 A0, vec4 A1) {
+ return (same(B,A0) && same(B,A1));
+}
+
+bool all_eq3(vec4 B, vec4 A0, vec4 A1, vec4 A2) {
+ return (same(B,A0) && same(B,A1) && same(B,A2));
+}
+
+bool all_eq4(vec4 B, vec4 A0, vec4 A1, vec4 A2, vec4 A3) {
+ return (same(B,A0) && same(B,A1) && same(B,A2) && same(B,A3));
+}
+
+bool any_eq3(vec4 B, vec4 A0, vec4 A1, vec4 A2) {
+ return (same(B,A0) || same(B,A1) || same(B,A2));
+}
+
+bool none_eq2(vec4 B, vec4 A0, vec4 A1) {
+ return (notsame(B,A0) && notsame(B,A1));
+}
+
+bool none_eq4(vec4 B, vec4 A0, vec4 A1, vec4 A2, vec4 A3) {
+ return (notsame(B,A0) && notsame(B,A1) && notsame(B,A2) && notsame(B,A3));
+}
+
+void main()
+{
+ vec4 E = src(0.0,0.0);
+
+ vec4 A = src(-1.0,-1.0);
+ vec4 B = src(0.0,-1.0);
+ vec4 C = src(1.0,-1.0);
+
+ vec4 D = src(-1.0,0.0);
+ vec4 F = src(1.0,0.0);
+
+ vec4 G = src(-1.0,1.0);
+ vec4 H = src(0.0,1.0);
+ vec4 I = src(1.0,1.0);
+
+ vec4 J = E;
+ vec4 K = E;
+ vec4 L = E;
+ vec4 M = E;
+
+ frag_color = E;
+
+ if(same(E,A) && same(E,B) && same(E,C) && same(E,D) && same(E,F) && same(E,G) && same(E,H) && same(E,I)) return;
+
+ vec4 P = src(0.0,2.0);
+ vec4 Q = src(-2.0,0.0);
+ vec4 R = src(2.0,0.0);
+ vec4 S = src(0.0,2.0);
+
+ float Bl = luma(B);
+ float Dl = luma(D);
+ float El = luma(E);
+ float Fl = luma(F);
+ float Hl = luma(H);
+
+ if (((same(D,B) && notsame(D,H) && notsame(D,F))) && ((El>=Dl) || same(E,A)) && any_eq3(E,A,C,G) && ((El=Bl) || same(E,C)) && any_eq3(E,A,C,I) && ((El=Hl) || same(E,G)) && any_eq3(E,A,G,I) && ((El=Fl) || same(E,I)) && any_eq3(E,C,G,I) && ((El src_rect) {
glProgramUniform2f(
diff --git a/src/video_core/renderer_opengl/gl_blit_helper.h b/src/video_core/renderer_opengl/gl_blit_helper.h
index a0cf2a4be..01ce770cb 100644
--- a/src/video_core/renderer_opengl/gl_blit_helper.h
+++ b/src/video_core/renderer_opengl/gl_blit_helper.h
@@ -40,6 +40,8 @@ private:
void FilterXbrz(Surface& surface, const VideoCore::TextureBlit& blit);
+ void FilterMMPX(Surface& surface, const VideoCore::TextureBlit& blit);
+
void SetParams(OGLProgram& program, const VideoCore::Extent& src_extent,
Common::Rectangle src_rect);
@@ -58,6 +60,7 @@ private:
OGLProgram nearest_program;
OGLProgram scale_force_program;
OGLProgram xbrz_program;
+ OGLProgram mmpx_program;
OGLProgram gradient_x_program;
OGLProgram gradient_y_program;
OGLProgram refine_program;